CN209678728U - A desktop dental flosser - Google Patents

Abstract

The utility model discloses a desktop dental flosser, which includes a fuselage shell, a handle, a pressure regulating structure, a driving motor and a water pump structure; the fuselage shell includes a water tank cover, a water tank, a fuselage upper cover, and a fuselage main shell body and the bottom cover of the fuselage; there is a partition board inside the main body shell, which is used to separate the internal cavity of the main body shell into an upper independent waterproof cavity and a lower independent waterproof cavity; the handle and adjustment The pressure structure is installed on the fuselage shell; the handle includes a handle shell, a nozzle locking mechanism and a water valve mechanism. The desktop dental flosser divides the inner cavity of the main shell of the fuselage into an upper independent waterproof cavity and a lower independent waterproof cavity by using a partition board, so that the circuit structure is installed in the upper independent waterproof cavity, and the lower independent waterproof cavity The waterway structure is installed in the cavity, which realizes the isolation of the waterway and the circuit to avoid damage to the circuit.

Description

A desktop dental flosser

technical field

The invention relates to a tooth cleaning device, in particular to a desktop tooth rinser.

Background technique

At present, when the existing desktop flossers are in use, since the circuit structure and the waterway structure are installed in the same chamber in the shell, but due to the heavy moisture in the waterway structure, water leakage may occur. Therefore, the circuit structure is often damaged by corrosion or short circuit. Therefore it is necessary to design a desktop dental flosser, which can isolate the waterway structure and the circuit structure, avoid corrosion or short circuit of the circuit structure, and prolong the service life of the circuit structure.

Contents of the invention

The purpose of the invention: to provide a desktop dental flosser, which can isolate the waterway structure and the circuit structure, avoid corrosion or short circuit of the circuit structure, and prolong the service life of the circuit structure.

Technical solution: The desktop dental flosser described in the present invention includes a body shell, a handle, a pressure regulating structure, a drive motor and a water pump structure; the body shell includes a water tank cover, a water tank, an upper body cover, a main body The shell and the bottom cover of the fuselage; the water tank cover is closed on the upper opening of the water tank; a partition plate is arranged inside the main shell of the fuselage, which is used to separate the internal cavity of the main shell of the fuselage into independent upper layers. The waterproof cavity and the independent waterproof cavity of the lower layer; the upper cover of the fuselage is closed on the upper opening of the main shell of the fuselage; the bottom cover of the fuselage is closed on the lower opening of the main shell of the fuselage; the bottom of the water tank is fixed Installed on the upper cover of the fuselage; the driving motor is installed in the upper independent waterproof cavity, the water pump structure is installed in the lower independent waterproof cavity, and the driving motor is used to drive the water pump structure to work; the main water inlet pipe is connected to the bottom of the water tank. The main water inlet pipe is connected to the water inlet of the water pump structure; the handle includes a handle housing, a nozzle locking mechanism and a water valve mechanism; the nozzle locking mechanism is installed in the handle housing, and is used to lock and fix the inserted nozzle of the flosser ; The water valve mechanism is installed in the handle housing, and communicates with the nozzle locking mechanism, and is used to control the opening and closing of the water supply channel of the nozzle of the dental flosser; the outer wall of the handle housing is provided with a switch hole around the circumference of the outer wall; A toggle switch is slidingly installed on the switch hole; the toggle switch is used to push the actuator of the water valve mechanism to rotate to realize the opening and closing control of the water supply channel; the water outlet of the water pump structure is connected to the switch inlet of the water valve mechanism through a hose The pressure regulating structure is connected in series on the hose to adjust and control the water pressure in the hose.

Further, a bottom installation hole is provided at the center of the bottom of the water tank, and a central sleeve is extended upward at the bottom installation hole; the central sleeve is located in the middle of the water tank; a top installation hole is provided at the center of the water tank cover, and the top The installation hole is connected to the upper nozzle of the central sleeve; a battery mounting seat is provided at the center of the upper side of the upper cover of the fuselage; the battery mounting seat is embedded in the central sleeve; a heat conduction column is installed at the bottom of the water tank. The lower end of the water tank extends into the main casing of the fuselage; a fuselage magnet for absorbing the handle is embedded on the outer surface of the water tank.

Further, the nozzle locking mechanism includes a nozzle limit sleeve and a nozzle lock switch; a nozzle buckle notch is provided through the pipe wall of the nozzle limit sleeve; the nozzle lock switch is installed at the nozzle buckle notch , used to buckle and fix the nozzle of the dental flosser inserted into the nozzle limiting sleeve.

Further, the nozzle lock switch includes a pressing head, a U-shaped buckle and a rebound pressure spring; a switch hole is provided on the outer wall of the handle housing; the U-shaped buckle is fixedly arranged on the pressing head, and the pressing head extends from the switch hole. Out of the handle housing; the U-shaped buckle is arranged around the periphery of the nozzle limit sleeve; the rebound compression spring is elastically supported between the inner surface of the pressing head and the outer wall of the nozzle limit sleeve, and is used to push the U-shaped buckle. The turning and bending section is partially embedded in the nozzle limiting sleeve at the notch of the nozzle buckle.

Further, the water valve mechanism includes a rotary drive component and a valve body component; the rotary drive component includes a connecting pipe, an upper casing, a lower casing, a nozzle sealing ring, a pop-up compression spring and a nozzle bullet; the upper casing and the lower casing They are respectively arranged at the upper and lower ends of the connecting pipe; the toggle switch is fixedly installed with the upper casing; the upper casing is connected to the nozzle locking mechanism; an upper limit baffle is arranged on the outer wall of the upper end of the nozzle limit casing; The U-shaped buckle is clamped between the upper limit baffle and the edge of the upper nozzle of the upper sleeve; a barrier ring is fixed in the middle of the connecting pipe; the nozzle sealing ring, the nozzle spring block and the pop-up pressure spring They are installed in the connecting pipe in turn, and the pop-up compression spring is elastically supported on the barrier ring, and the sealing ring of the nozzle is located at the upper nozzle of the connecting pipe; the valve body components include the rotating linkage pipe and the switch water valve; the upper end of the rotating linkage pipe is inserted It is installed and fixed in the lower casing; the lower end of the rotating linkage pipe is fixed in the on-off water valve, which is used to drive the valve core in the on-off water valve to rotate, so as to realize the opening and closing control of the water supply channel.

Further, the on-off water valve includes a cylindrical shell, a locking cap, a moving valve plate and a static valve plate; a locking external thread is provided on the outer wall of the upper mouth of the cylindrical shell, and a locking thread is arranged on the outer wall of the cylindrical shell. The bottom of the barrel is connected with a water valve inlet pipe; the locking cap is threaded and installed on the locking external thread, and a mounting hole is provided at the top center of the locking cap; the lower end of the rotating linkage pipe extends into the circle through the mounting hole. In the cylindrical shell; both the moving valve and the static valve are installed in the cylindrical shell; the rotating linkage pipe is used to drive the moving valve to rotate relative to the static valve; the water valve inlet pipe is used as the switch of the water valve mechanism. connected.

Further, the water pump structure includes a first cylinder body, a second cylinder body, two piston mechanisms, a piston-driven crankshaft, a water outlet connection body, a water outlet mechanism, and a water inlet mechanism; the first cylinder body and the second cylinder body are fixedly installed side by side; the piston The mechanism is composed of a piston rod, a shaft sleeve and a piston head; the shaft sleeve is fixedly arranged on one end of the piston rod, and the piston head is hingedly mounted on the other end of the piston rod; the piston heads of the two piston mechanisms are respectively installed on the first In the cylinder block and the second cylinder block; the bushings of the two piston mechanisms are installed on the piston drive crankshaft for driving the two piston heads to move in the first cylinder block and the second cylinder block; in the first cylinder block There is a bar-shaped extension body on the top of the cylinder and the second cylinder body; a water outlet side columnar connector and a water inlet side columnar connector are respectively provided on the left and right sides of the bar-shaped extension body, and on the left and right sides The water outlet side cylindrical connector and the water inlet side cylindrical connector corresponding to the side are provided with water inlet and outlet holes; the inside of the strip extension body is provided with a communication hole connecting the water inlet and outlet holes to the inside of the cylinder; the water outlet connector Installed between the water outlet mechanism and the two outlet side cylindrical connectors, used to connect the water outlet mechanism and the two water outlet side cylindrical connectors, and there is a water outlet one-way between the water outlet side cylindrical connectors and the water outlet connector Valve membrane: the water inlet mechanism is connected and installed with the two water inlet side cylindrical connectors, and a water inlet one-way valve membrane is arranged between the water inlet mechanism and the two water inlet side cylindrical connectors.

Furthermore, an overflow cylindrical connector is also provided on the water outlet mechanism, and a return hole connected with the pump outlet pipe is provided on the overflow cylindrical connector; a return water sleeve is also provided on the water inlet mechanism The bottom of the return sleeve is provided with a diversion hole connected with the pump inlet pipe; the overflow cylindrical connector is inserted in the return sleeve to realize docking; the return sleeve is installed with a return water The one-way valve and the valve supporting clip spring; the backwater one-way valve is blocked on the return water hole under the elastic support of the valve supporting clip spring.

Further, the pressure regulating structure includes a knob cap, a pressure regulating base, a pressure regulating cover plate, a pressure regulating dial and a pressure regulating return piece; a circular pressure regulating groove is arranged on one side of the pressure regulating base, and The other side is provided with a pressure regulation diversion water inlet pipe and a pressure regulation diversion flow outlet pipe; at the bottom of the circular pressure regulation groove, there is a pressure regulation water inlet hole connected with the pressure regulation diversion water inlet pipe and a pressure regulation diversion flow pipe. The outlet pipe is connected to the pressure regulating water outlet hole; the pressure regulating dial is installed in the circular pressure regulating groove, and a pressure regulating water tank is arranged on the inner surface of the pressure regulating dial and the groove bottom of the circular pressure regulating groove ; The pressure regulating water tank connects the pressure regulating water inlet hole with the pressure regulating water outlet hole; There is a pressure regulating shaft at the center of the outer surface of the pressure regulating dial; the pressure regulating shaft extends out of the pressure regulating cover plate from the round hole of the pressure regulating shaft and is installed on the knob cap; The pressure-regulating outlet pipe; the end of the pressure-regulating split-flow inlet pipe is inserted into the backflow docking sleeve; the pressure-regulating water inlet pipe and the pressure-regulating outlet pipe are installed on the outer wall of the backflow docking sleeve, and both are connected to the backflow docking sleeve. The interior is connected; the pressure-regulating water inlet pipe and the pressure-regulating water outlet pipe are connected in series on the hose according to the direction of water flow; a return water distribution pipe is provided at the water inlet of the pump structure;

Further, the pressure-regulating water tank is composed of a section of fan-shaped notch and a section of connecting water tank that is gradually narrowed and arranged in an arc; the fan-shaped notch is located at the edge of the inner side of the pressure-regulating dial, and the connecting water tank is located on the inner side of the pressure-regulating dial. The mouth is connected with the wider end of the communicating water tank; the pressure regulating water inlet hole is connected with the fan-shaped notch, and the pressure regulating water outlet hole is connected with the communicating water tank.

Compared with the prior art, the present invention has the beneficial effect that the internal cavity of the main body shell of the fuselage is divided into an upper independent waterproof cavity and a lower independent waterproof cavity by using the interlayer board, so that the upper independent waterproof cavity The circuit structure is installed in the middle, and the waterway structure is installed in the independent waterproof cavity of the lower layer, which realizes the isolation of the waterway and the circuit and avoids damage to the circuit; the upper and lower sealing rings are used to realize the opening and closing of the upper and lower sides of the main shell of the fuselage The tightness of the place.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the desktop dental flosser created by the present invention;

Fig. 2 is a schematic diagram of the explosive structure of the first viewing angle of the fuselage shell created by the present invention;

Fig. 3 is a schematic diagram of the exploded structure of the fuselage shell created by the present invention at a second viewing angle;

Fig. 4 is the structural representation of the handle created by the present invention;

Fig. 5 is the structural representation of the pressure regulating structure created by the present invention;

Fig. 6 is a schematic diagram of the exploded structure of the first viewing angle of the pressure regulating structure created by the present invention;

Fig. 7 is a schematic diagram of the exploded structure of the pressure regulating structure created by the present invention in a second viewing angle;

Fig. 8 is the structural representation of the water pump structure that the present invention creates;

Fig. 9 is a schematic diagram of the exploded structure of the water pump structure created by the present invention;

Fig. 10 is the structural representation of the first cylinder and the second cylinder created by the present invention;

Fig. 11 is a structural schematic diagram of the water outlet mechanism created by the present invention;

Fig. 12 is a structural schematic diagram of the water inlet mechanism created by the present invention;

Fig. 13 is a schematic diagram of the structure of the water outlet connector created by the present invention;

Fig. 14 is a schematic diagram of the structure of the water outlet connector created by the present invention;

Fig. 15 is a schematic structural view of the one-way valve membrane created by the present invention;

Fig. 16 is a structural schematic diagram of the nozzle locking mechanism created by the present invention;

Fig. 17 is a schematic structural view of the rotary drive component created by the present invention;

Fig. 18 is a schematic structural view of the valve body parts created by the present invention;

Fig. 19 is a schematic diagram of the internal structure of the cylindrical housing created by the present invention;

Figure 20 is a schematic diagram of the structure of the U-shaped buckle created by the present invention;

Fig. 21 is a schematic diagram of the structure of the front housing created by the present invention;

Fig. 22 is a schematic diagram of the structure of the rear case created by the present invention;

Fig. 23 is a schematic structural view of the static valve plate created by the present invention;

Fig. 24 is a schematic structural diagram of the movable valve plate created by the present invention.

Detailed ways

The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

Example 1:

As shown in Figures 1-3, it includes a fuselage shell 1, a handle 3, a pressure regulating structure 4, a drive motor and a water pump structure 6; the fuselage shell 1 includes a water tank cover 101, a water tank 103, a fuselage upper cover 108, Body main shell 109 and fuselage bottom cover 112; Water tank cover 101 is covered on the upper side opening of water tank 103; The inside of fuselage main shell 109 is provided with interlayer plate 110, is used for fuselage main shell The internal cavity of 109 is divided into the independent waterproof cavity of the upper layer and the independent waterproof cavity of the lower layer; The body cover 108 and the fuselage main shell 109 are covered with an upper sealing ring; the fuselage bottom cover 112 is closed on the lower opening of the fuselage main shell 109 to seal the lower independent waterproof cavity, and A lower sealing ring is provided at the joint between the fuselage bottom cover 112 and the fuselage main shell 109; the bottom of the water tank 103 is fixedly mounted on the fuselage upper cover 108; the handle 3 and the pressure regulating structure 4 are installed on the fuselage shell body 1; the driving motor is installed in the upper independent waterproof cavity, the water pump structure 6 is installed in the lower independent waterproof cavity, and a reduction mechanism 7 is also arranged in the lower independent waterproof cavity; the reduction mechanism 7 is a reduction gear set; The output shaft of the drive motor extends into the lower independent waterproof cavity, and drives the water pump structure 6 to work through the speed reduction mechanism 7; the bottom of the water tank 103 is communicated with a main water inlet pipe 116 that runs through the upper independent waterproof cavity, and the main water inlet pipe 116 is connected to the water pump. The water inlets of structure 6 are connected; the handle 3 includes a handle housing, a nozzle locking mechanism and a water valve mechanism; a nozzle socket 306 is provided on the top of the handle housing; the nozzle locking mechanism is installed in the handle housing and located on the nozzle. The socket 306 is used to lock and fix the inserted nozzle of the dental flosser; the water valve mechanism is installed in the handle housing and communicates with the nozzle locking mechanism to open and close the water supply channel of the nozzle of the dental flosser Control; the outer wall of the handle housing is provided with a switch hole 304 around the circumference of the outer wall; a toggle switch 305 is slidably installed on the switch hole 304; the toggle switch 305 is fixedly installed with the water valve mechanism in the handle housing for pushing The executive part of the water valve mechanism rotates to realize the opening and closing control of the water supply channel; the water outlet of the water pump structure 6 is connected with the switch water inlet of the water valve mechanism through the hose 8; It is used to adjust and control the water pressure in the flexible pipe 8. Utilize the upper sealing ring and the lower sealing ring to realize the airtightness of the upper and lower openings of the main casing 109 of the fuselage; use the nozzle locking mechanism and the water valve mechanism to be combined and installed separately, which can facilitate subsequent disassembly and maintenance and reduce maintenance costs ;During use, the toggle switch 5 slides along the circumference to realize the opening and closing control of the water supply channel, which is convenient and quick to adjust; the nozzle is directly inserted into the nozzle locking mechanism and the water valve mechanism, without the need for limit fixing of the handle housing , which has better nozzle constraint and fixation performance.

As shown in Figures 2 and 3, a bottom mounting hole is provided at the center of the bottom of the water tank 103, and a central sleeve 104 is extended upwards at the bottom mounting hole; the central sleeve 104 is located in the middle of the water tank 103, and the central sleeve The upper nozzle of 104 is flush with the upper opening of the water tank 103; the center of the water tank cover 101 is provided with a top mounting hole 102, and the top mounting hole 102 is connected to the upper nozzle of the central casing 104; The center of the upper side of the upper cover 108 is provided with a battery mounting base 107; the battery mounting base 107 is embedded in the central casing 104; There are two circular installation holes 115; the heat conduction column 106 and the main water inlet pipe 116 run through the two circular installation holes 115 respectively; the outer walls of the heat conduction column 106 and the main water inlet pipe 116 are provided with external threads for installation, so as to pass through the two A mounting nut fixes the heat conduction column 106 and the main water inlet pipe 116 on the fuselage upper cover 108; the lower end of the heat conduction column 106 stretches into the fuselage main shell 109; Pad 114; a middle tube for circuit installation (not shown) is vertically installed at the center of the upper cover 108 of the fuselage, and the battery mounting seat 107 is located in the middle tube for circuit installation; the middle tube for circuit installation is inserted into the center sleeve 104; A fuselage magnet 105 for absorbing the handle 3 is embedded on the outer surface of the water tank 103 . The circuit board 503, the control button circuit board 502 and the waterproof transparent film 501 can be installed inside the circuit installation tube; the heat conduction column 106 can be used to guide the temperature in the water tank 103, which is convenient for the temperature measurement of the temperature sensor; the non-slip mat 114 is used It can enhance the anti-skid performance of the body structure of the dental flosser.

As shown in Figures 2 and 3, a rechargeable battery (not shown) embedded in the tube in the circuit installation is installed on the battery mounting seat 107; a button control display circuit 5 is installed at the upper nozzle of the tube in the circuit installation , the button control display circuit 5 is composed of a display circuit board 503, a control button circuit board 502 and a waterproof transparent film 501 installed sequentially from bottom to top; a display screen is provided at the center of the display screen circuit board 503; The center of the board 502 is provided with a display screen hole, and the periphery of the control key circuit board 502 is provided with a control key; A control circuit board 111 is installed in the upper independent waterproof cavity; a controller, a charging and discharging circuit and a motor drive circuit are installed on the control circuit board 111; a temperature sensor is installed on the lower end of the heat conduction column 106; The inner panel of the cavity is equipped with a charging coil and a charging stand adsorption magnet for absorbing the charging stand 2; the controller is electrically connected with the temperature sensor, the display screen, the motor drive circuit and the control buttons respectively; the controller controls the drive motor to rotate through the motor drive circuit; The rechargeable battery supplies power to the controller, the temperature sensor, the display screen, the motor drive circuit and the control buttons respectively through the charging and discharging circuit, and the charging coil is electrically connected to the rechargeable battery through the charging and discharging circuit. Using the battery mount 107 can facilitate the installation of lithium batteries; using the waterproof transparent film 501 can realize circuit waterproofing without affecting the keys.

As shown in Figure 4 and 16-24, the nozzle locking mechanism includes a nozzle limit sleeve 315 and a nozzle lock switch; the sleeve installation side ear 317 is provided on the nozzle limit sleeve 315, and the sleeve is installed by screws. The side ear 317 is fixedly installed in the handle housing; the upper nozzle of the nozzle limit sleeve 315 is connected to the nozzle socket 306; the nozzle snap notch 320 is provided through the pipe wall of the nozzle limit sleeve 315; the nozzle lock The tight switch includes a pressing head 307, a U-shaped buckle 338 and a rebound stage 313; a switch hole 345 is provided on the outer wall of the handle housing; 345 extends out of the handle housing; the U-shaped buckle 338 is arranged around the periphery of the nozzle limiting sleeve 315; the rebound compression spring 313 is elastically supported between the inner surface of the pressing head 307 and the outer wall of the nozzle limiting sleeve 315, The turning and bending section 339 used to push the U-shaped buckle 338 is partially embedded in the nozzle limiting sleeve 315 at the notch 312 of the nozzle buckle; The outer wall of the casing 315 is provided with an inner convex column 319 ; The nozzle limiting sleeve 315 and the nozzle locking switch constitute a nozzle locking mechanism with a simple structure, which can realize the plug-in and fixation of the nozzle; the rebound compression spring 313 can make the turning and bending section 339 of the nozzle be snapped on the outer wall of the nozzle in time when the nozzle is inserted. The ring groove is locked and fixed, and after the pressing head 307 is pressed, the turning and bending section 339 can be separated from the ring groove of the outer wall of the nozzle, so that the nozzle is ejected, and the rebound spring 313 makes the pressed pressing head 307 bounce back quickly.

As shown in Figure 4, 16-24, the water valve mechanism includes a rotary drive part and a valve body part; the rotary drive part includes a connecting pipe 308, an upper casing 311, a lower casing 309, a nozzle sealing ring, a pop-up compression spring and a nozzle Elastic block; the upper sleeve 311 and the lower sleeve 309 are respectively arranged at the upper and lower ends of the connecting pipe 308; the toggle switch 305 is fixedly installed with the upper sleeve 311; the lower end of the nozzle limit sleeve 315 is inserted into the upper sleeve 311 Middle; on the outer wall of the upper end of the nozzle limit sleeve 315, an upper limit baffle 318 is provided; the U-shaped buckle 338 is clamped between the upper limit baffle 318 and the edge of the upper nozzle of the upper sleeve 311 , using the upper limit baffle 318 and the upper sleeve 311 to clamp and limit the U-shaped buckle 338 to ensure the stability of the U-shaped buckle 338 after installation and prevent skewing under the push of the ring groove of the nozzle; The middle part of the connecting pipe 308 is fixed with a barrier ring; the sealing ring of the nozzle, the spring block of the nozzle and the pop-up compression spring are installed in the connection tube 308 in sequence, and the spring compression spring is elastically supported on the barrier ring, and the sealing ring of the nozzle is located At the upper nozzle of the connecting pipe 308, the nozzle sealing ring can not only realize the sealing of the outer wall of the nozzle, but also realize the blocking of the nozzle bullet to prevent the nozzle bullet from being ejected, and a water hole is provided on the nozzle bullet; the nozzle seal The ring is used to seal the outer wall of the nozzle of the dental flosser inserted into the connecting pipe 308; the valve body components include a rotating linkage pipe 324 and a switch water valve; the upper end of the rotating linkage pipe 324 is inserted and fixed in the lower casing 309; the rotating linkage pipe 324 The lower end of the water switch is fixed in the switch water valve, and is used to drive the valve core in the switch water valve to rotate, so as to realize the opening and closing control of the water supply channel.

As shown in Figure 4 and 16-24, the on-off water valve includes a cylindrical housing 329, a locking cap 322, a moving valve plate 352 and a static valve plate 349; Lock the external thread 330, and a water valve inlet pipe 332 is connected to the bottom of the cylindrical housing 329, and a water valve inlet pipe 332 is provided in the middle of the outer wall of the cylindrical housing 329 for fixing and installing the cylindrical housing 329 to the handle housing. The side ear 331 is installed in the valve body; the locking cap 322 is threaded and installed on the locking external thread 330, and the top center of the locking cap 322 is provided with a mounting hole 323; the lower end of the rotating linkage pipe 324 is provided with a mounting hole 323 extends into the cylindrical housing 329, and on the outer wall of the lower end of the rotating linkage pipe 324, the lower port sealing groove 327 formed by the lower end limit collars arranged at intervals; the lower port sealing ring is installed on the lower port sealing groove 327 , and the lower port sealing ring is closely attached to the inner wall of the cylindrical housing 329, and the waterproof sealing of the rotating linkage pipe 324 and the cylindrical housing 329 can be realized by using the lower port sealing ring; the moving valve plate 352 and the static The valve plates 349 are all installed in the cylindrical housing 329; the rotating linkage pipe 324 is used to drive the moving valve plate 352 to rotate relative to the static valve plate 349; the water valve inlet pipe 332 is connected to the hose 8 as the switch water inlet of the water valve mechanism Pass.

As shown in Figure 4, 16-24, the inner surface of the pressing head 307 is provided with an outer short post 337; the outer wall of the nozzle limit sleeve 306 is provided with an inner convex post 319; On the outer stub 337 and the inner boss 319 . Use the outer short post 337 and the inner convex post 319 to limit and fix the rebound compression spring to prevent the rebound compression spring 313 from falling off. Two straight strip-shaped sides 316 are arranged on the outer wall of the nozzle limiting sleeve 315 ; Utilizing the cooperation of the two parallel straight sections of the U-shaped buckle 338 and the two bar-shaped sides 316 can enhance the guiding performance of the U-shaped buckle 338 during the pressing movement. On the outer peripheral wall of the upper casing 311, a semicircle brace 312 is arranged; the outer surface of the semicircle brace 312 is close to the inner wall of the handle housing; a switch is provided in the middle of the semicircle brace 312 jack; the inner side of the toggle switch 305 is provided with an insertion rod 314; the insertion rod 314 is inserted into the switch jack; the inner wall of the handle housing is provided with a limit groove 355; Between the upper and lower sides of the limiting groove 355 , the stability of the upper sleeve 311 during rotation can be ensured by the cooperation of the semicircular arc brace 312 and the limiting groove 355 . There are two mounting snap holes 310 on the tube wall of the lower casing 309; an upper port sealing ring groove 326 is provided at the upper end of the rotating linkage pipe 324; an upper port sealing ring is installed on the upper port sealing ring groove 326; Two triangular buckle blocks 325 are arranged on the outer wall of the upper end of the rotation linkage pipe 324; after the upper end of the rotation linkage pipe 324 is inserted into the lower casing 309, the upper port sealing ring is clamped between the inner wall of the lower casing 309 and the rotation linkage pipe 324. In between, the sealing ring of the upper port can be used to realize the butt tightness of the rotating linkage pipe 324 and the lower casing 309. The two triangular buckle blocks 325 are respectively embedded in the two installation buckle holes 310. The cooperation of the button hole 310 can make the rotation linkage tube 324 and the lower sleeve 309 rotate synchronously, and can prevent the rotation linkage tube 324 from being separated from the lower sleeve 309 .

As shown in Figure 4 and 16-24, an edge limit block 351 is provided on the edge of the static valve plate 349; There is a toggle fork 328; a side limit projection 336 is provided on the outside of the two forks of the toggle fork 328, and an interval limit groove is provided on the inner wall of the cylindrical housing 329 around the circumference of the inner wall 334; when the rotation linkage tube 324 rotates, the side limit projection 336 slides in the interval limit groove 334, and the rotation angle range can be limited by the cooperation of the side limit projection 336 and the interval limit groove 334; The two bifurcated ends of the toggle fork 328 are respectively inserted into the two drive recesses 354, and a water flow gap is formed between the nozzle of the lower end of the supporting rotating linkage pipe 324 and the upper side of the movable valve plate 352. The setting of the water flow gap can Axial water flow is realized, so that the waterway flows smoothly into the connecting pipe 308 along the rotating linkage pipe 324; an edge limit groove 335 is provided on the inner wall of the cylindrical shell 329, and the static valve plate 349 is installed horizontally on the cylindrical shell In the body 329, the edge limit block 351 is embedded in the edge limit groove 335; the top of the locking cap 322 presses the lower limit bead, so that the upper side of the static valve plate 349 and the lower side of the movable valve plate 352 close to each other; on the static valve plate 349, there are two centrally symmetrical fan-shaped water holes 350; on the inner wall of the bottom of the cylindrical shell 329, there is a support ring protrusion 321, and the static valve plate 349 is located on the support ring Above the protrusion 321, the fan-shaped water hole 350 communicates with the upper end water outlet 333 of the water inlet pipe 332; a V-shaped notch 353 is centrally symmetrically arranged on the circumferential edge of the movable valve plate 352; when the water supply channel is opened, two V The V-shaped notches 353 respectively correspond to the two fan-shaped water holes 350 , and when the water supply channel is closed, the two V-shaped notches 353 are respectively staggered with the two fan-shaped water holes 350 .

As shown in Fig. 4, 16-24, the handle housing is made up of front side housing 301 and rear side housing 302; The inner side of the body 301 is provided with a magnet mounting seat 344 at the position corresponding to the adsorption disk surface 303; a handle magnet is provided on the magnet mounting seat 344, and the handle 3 is mounted on the body shell through the handle magnet and the body magnet 105 being adsorbed. 1; a bottom disc 340 is provided at the lower end of the front housing 301; a housing assembly hole 341, a hose installation hole 342 and a leak hole 343 are provided on the bottom disc 340, and the leak hole 343 can be used to prevent water leakage Timely discharge the water in the handle housing; the inner side of the lower end of the rear side housing 302 is provided with a housing assembly seat 346; The inner side of the assembly edge of the rear side housing 302 is provided with a buckle hook 348; when the front side housing 301 and the rear side housing 302 are assembled, the buckle hook 348 is buckled on the buckle flap 347 at the corresponding position, thereby Realize quick combined installation, the shell assembly hole 341 is opposite to the shell assembly seat 346, and the bottom disc 340 is installed on the shell assembly seat 346 through the shell assembly hole 341 through the shell assembly screw.

When the handle 3 is in use, the nozzle of the dental flosser is inserted into the nozzle socket 306, and the outer wall of the nozzle is sealed by the nozzle sealing ring; The folding section 339 is buckled in the ring groove on the outer wall of the nozzle for limit fixing; the water inlet hose enters the handle housing through the hose perforation 342, and the hose 8 is butted and installed on the water inlet pipe 332; when the water supply channel is opened and closed During control, slide the toggle switch 305 to drive the rotating linkage pipe 324 to rotate with the rotating drive part, thereby driving the moving valve plate 352 to rotate relative to the static valve plate 349, so that the V-shaped notch 353 and the fan-shaped water hole 350 are relatively opened or staggered to close, When it is turned on, the water flow is connected to the water inlet hose, the water inlet pipe 332, the fan-shaped water hole 350, the V-shaped notch 353, the rotating linkage pipe 324 and the connecting pipe 308 in turn, and then enters the nozzle and sprays out to realize the opening of the water circuit; the handle of the flosser passes through the magnet The magnet installed in the installation seat 344 is adsorbed on the side of the desktop body; when replacing the nozzle, just press the pressing head 307, so that the turning and bending section 339 of the U-shaped buckle 338 is detached from the ring groove on the outer wall of the nozzle. Under the action of the spring, the nozzle is ejected for quick replacement.

As shown in Figures 8-15, the water pump structure 6 includes a first cylinder body 601, a second cylinder body 602, two piston mechanisms, a piston drive crankshaft, a water outlet connector, a water outlet mechanism and a water inlet mechanism; the first cylinder body 601 and The second cylinder body 602 is fixedly installed side by side, and the cylinder ports of the first cylinder body 601 and the second cylinder body 602 are on the same side; the piston mechanism is composed of a piston rod 613, a shaft sleeve 614 and a piston head; the shaft sleeve 614 is fixedly arranged on the piston On one end of the rod 613, the piston head is hingedly mounted on the other end of the piston rod 613; the piston heads of the two piston mechanisms are installed in the first cylinder 601 and the second cylinder 602 respectively; Axle sleeve 614 is installed on the piston driving crankshaft, and is used to drive two piston heads to move in the first cylinder 601 and the second cylinder 602; There is a strip-shaped extension body 663; on the left and right sides of the strip-shaped extension body 663, there are respectively a water outlet side cylindrical connector 627 and a water inlet side cylindrical connector 665, and the corresponding water outlet sides on the left and right sides The cylindrical connector 627 and the cylindrical connector 665 on the water inlet side are provided with a water inlet and outlet hole 664; inside the strip-shaped extension body 663, there is a communication hole connecting the inlet and outlet water hole 664 to the inside of the cylinder; the water outlet connector Installed between the water outlet mechanism and the two outlet side cylindrical connectors 627, used to connect the water outlet mechanism and the two water outlet side cylindrical connectors 627, and between the water outlet side cylindrical connector 627 and the water outlet connector. Water outlet one-way valve membrane; the water inlet mechanism is installed in communication with the two water inlet side cylindrical connectors 665, and a water inlet one-way valve membrane is arranged between the water inlet mechanism and the two water inlet side cylindrical connectors 665; The water outlet mechanism includes a pump outlet pipe 606 and two outlet side sleeves 607 arranged on the pump outlet pipe 606; side outlet holes 649 communicating with the pump outlet pipe 606 are provided at the bottom of the two outlet side sleeves 607; The water mechanism includes a pump water inlet pipe 604 and two water inlet side sleeves 610 arranged on the pump water inlet pipe 604; side water inlet holes communicating with the pump water inlet pipe 604 are provided at the bottom of the two water inlet side sleeves 610 631; the water outlet connector includes two connecting sleeves 624 arranged side by side; a butt cylindrical connector 625 is provided on the outside of the bottom of the connecting sleeve 624; The water hole 651; the two water outlet side sleeves 607 are set respectively on the two butt joint cylindrical connectors 625 to realize the butt joint; the two connection sleeves 624 are sleeved on the two water outlet side cylindrical connectors 627 to realize the butt joint; The two water inlet side sleeves 610 are sleeved respectively on the two water inlet side cylindrical connectors 665 to achieve docking; the pump outlet pipe 606 is used as the water outlet of the water pump structure 6 to communicate with the hose 8; the pump inlet pipe 604 is used as a water pump The water inlet of the structure 6 is connected with the main water inlet pipe 116 . Utilizing the water outlet connector can add a one-way isolation structure of a one-way valve membrane on the water outlet side to ensure that there will be no mutual influence of water pressure on the water outlet side.

As shown in Figure 8-15, an overflow cylindrical connector 618 is also provided on the pump outlet pipe 606, and a return hole 643 communicating with the pump outlet pipe 606 is provided on the overflow cylindrical connector 618; There is also a water return sleeve 605 on the pump water inlet pipe 604, and a diversion water hole 629 connected with the pump water inlet pipe 604 is provided at the bottom of the water return sleeve 605; the overflow cylindrical connector 618 is inserted into the back water The docking is realized in the water sleeve 605; the return water check valve and the valve support compression spring 622 are installed in the return water sleeve 605; the return water check valve is blocked in the return water hole under the elastic support of the valve support compression spring 622 643 ; the water inlet pipe 604 is communicated with a pressure regulating shunt pipe 617 . The overflow cylindrical connection head 618, the return water sleeve 605, the return water one-way valve and the valve supporting spring 622 are used to form an independent overflow return water distribution structure, which can not affect the frequency of the water outlet pulse when adjusting the water pressure, so that Voltage regulation and frequency regulation are independent of each other.

As shown in Figures 8-15, limit projections 630 are arranged at intervals around the water diversion hole 629 in the return sleeve 605; the valve support compression spring 622 is arranged in the area surrounded by each limit projection 630; One-way valve is made of conical head 620 and guide rod 621; Guide rod 621 is arranged at the center of the cone bottom surface of conical head 620; Valve supporting clip spring 622 is sleeved on the guide rod 621; A conical surface corresponding to the conical head 620 is provided. The sealing is realized by the cooperation of the conical head 620 and the conical surface. When the pressure is adjusted, the water pressure at the water outlet will rise, and the conical head 620 will be pushed in the opposite direction to compress the valve support spring 622, so that the water enters from the water outlet side. The side shunts the return water, and the return water flows out from the shunt pipe 617. At this time, the operating frequency of the motor remains unchanged and is always in a normal working state.

As shown in Figure 8-15, one end of the pump outlet pipe 606 is sealed, and the other end is connected with a water outlet buffer sleeve 608, and the water outlet buffer sleeve 608 is connected to the hose 8 through the installation end; The outer wall of the barrel mouth of 608 is provided with two water outlet installation protrusions 646; the water outlet installation protrusion 646 is provided with a water outlet threaded hole 647 for docking installation; one end of the pump inlet pipe 604 is sealed, and the outer wall of the other end is provided with a In the sealing limit groove 609 where the nozzle sealing ring is installed, the pump inlet pipe 604 is connected to the main water inlet pipe 116 through the water pipe sleeve; on the outer wall of the nozzle of the return sleeve 605, there are two shunt installation protrusions 616. The mounting bump 616 is provided with a shunt butt joint installation hole; two installation side ears 644 are provided on the outside of the overflow cylindrical connector 618, and side ear installation holes are provided on the installation side ears 644; the screw end of the shunt butt joint bolt penetrates Install and fix after the shunt docking installation hole and side ear installation hole; a limit installation hole 640 is provided at the end of the strip extension body 663; a water outlet side limit installation side ear 648 is provided on the outer walls of the two water outlet sleeves 607 ; On the outer walls of the two water inlet side sleeves 610 are provided with a water inlet limit installation side ear 634; on the outer walls of the two connecting sleeves 624 are provided with an intermediate limit installation side ear 652; installed by the limit The end of the screw rod of the bolt runs through the limit installation side ear 648 on the water outlet side, the middle limit installation side ear 652, the limit installation hole 640 and the water inlet side limit installation side ear 634 to realize the limit fixed installation; the two water outlet side sleeves 607 On the outer wall of the water outlet side, there is a pair of pull supports 650; on the outer walls of the two connecting sleeves 624, there is a pair of pull support pipes 626; on the outer walls of the two inlet side sleeves 610, there is a One water-inlet side pull support 633; the screw rod ends of the pull bolts pass through the water-outlet side pull support 650, the pull support pipe 626 and the water-inlet side pull support 633 to realize the pull fixed installation; The root limit installation bolt and a pull bolt are located at the three vertices of the isosceles triangle. The use of three-point bolt installation can effectively enhance the stability and structural strength of the docking installation, ensuring structural stability under high water pressure conditions.

As shown in Figure 8-15, the water outlet check valve membrane and the water inlet check valve membrane are check valve membranes with the same structure, both of which are composed of a circular film 653 and a limiting rectangle integrally arranged on the peripheral edge of the circular film 653 Edge 654 constitutes; The circular film 653 is provided with a C-shaped hole, thereby forming a circular baffle 655 for closing the water hole in the middle part of the circular film 653, and the limit rectangular side 654 and the circular baffle 655 A connecting piece 656 for tilting and bending is formed between them; there is a one-way connecting piece on the bottom of the water outlet sleeve 607, the bottom of the connecting sleeve 624, and the end face of the water inlet cylindrical connector 665. The valve membrane limit groove 636 that conforms to the outer contour of the valve membrane; two strip-shaped support projections 637 are arranged in the valve membrane limit groove 636; the one-way valve membrane is installed in the valve membrane limit groove 636, and the strip shape The supporting protrusion 637 is supported on the inner side of the one-way valve membrane. The one-way valve membrane has a small structure and is easy to install, and can effectively control the size of the overall structure of the double pump; the one-way valve membrane can be supported by the strip-shaped support projection 637, so that the one-way valve membrane and the water hole where the water flows Isolated, but does not affect the water outlet of the water hole.

As shown in Figure 8-15, a backwater sealing ring groove 645 is provided on the outer peripheral wall of the overflow cylindrical connector 618, and a backwater sealing ring is installed on the backwater sealing ring groove 645; The outer peripheral wall of the connector 627 is provided with a water outlet side sealing ring groove, and the water outlet side sealing ring is installed on the water outlet side sealing ring groove; the water inlet side sealing ring is provided on the outer peripheral wall of the water inlet side cylindrical connector 665. Ring groove, the water inlet side sealing ring is installed on the water inlet side sealing ring groove; the outer peripheral wall of the butt joint cylindrical connector 625 is provided with a butt end sealing ring groove 615, and a butt joint is installed on the butt end sealing ring groove 615 end seal. Use the backwater sealing ring, the water outlet side sealing ring, the water inlet side sealing ring and the butt joint end sealing ring to seal each docking position, effectively preventing water leakage.

As shown in Figure 8-15, the crankshaft driven by the piston is composed of a drive gear 603 and drive short shafts 623 respectively arranged on both sides of the drive gear 603; The axis lines of the two driving short shafts 623 on the side of the driving gear 603 pass through the center of the driving gear 603, or the axis lines of the two driving short shafts 623 coincide; On the short driving shaft 623; at the center of the driving gear 603, there is a central shaft hole 635 that runs through the two short driving shafts 623 and the driving gear 3; a central shaft 639 is installed in the central shaft hole 635, and the central shaft 639 is installed on In the reduction mechanism 7 , the drive gear 603 meshes with the reduction gear in the reduction mechanism 7 . The two piston heads can be driven separately by the arrangement of two driving short shafts 623. If the axis lines of the two driving short shafts 623 coincide, it is a synchronous crank rod piston drive. If the shafts of the two driving short shafts 623 If the center line is set symmetrically to the center of the circle, it is driven by an asynchronous crank rod piston, which can be selected and installed according to design needs.

As shown in Figure 8-15, the left and right sides of the first cylinder body 601 and the second cylinder body 602 are provided with a side wing plate 611; the side wing plate 611 is provided with a reinforcing rib plate 641 for fixing on the cylinder body On the side wing plate 611 of the first cylinder body 601, butt sleeves 612 are arranged side by side; on the side wing plate 611 of the second cylinder body 602, butt joint columns 619 are arranged side by side; A through hole 642; a screw mounting hole is provided at the bottom of the side-by-side docking sleeves 612; an upper support mounting hole is provided on the strip-shaped extension body 663 of the second cylinder body 602; a support is provided below the upper support mounting hole Tube 638; the strip-shaped extension body 663 of the first cylinder 601 is provided with a lower side support installation hole 632; when the first cylinder 601 and the second cylinder 602 are fixed and installed side by side, the side-by-side docking columns 619 are inserted into the corresponding positions In the side-by-side docking sleeves 612, the ends of the side-by-side installation screws pass through the screw through holes 642 and then screwed and installed on the screw installation holes for fixing, and the screw ends of the side-by-side installation bolts pass through the upper support installation holes in sequence , the support tube 638 and the lower side support installation hole 632 for fixing. The cooperation of the side-by-side docking sleeves 612 and the side-by-side docking columns 619 can enhance the stability of the side-by-side installation of the first cylinder body 601 and the second cylinder body 602; the use of the support tube 638 can enhance the stability of the installation of the upper and lower strip-shaped extension bodies 663 .

As shown in Figures 8-15, the piston head includes a cylindrical piston body 657 and a piston seal ring 660; the piston seal ring 660 is arranged around the middle of the cylindrical piston body 657; A hole 661; a hinged mounting hole 662 is provided on the hole wall of the connecting rod mounting hole 661; a spherical head 628 is provided at the end of the piston rod 613; the spherical head 628 extends into the connecting rod mounting hole 661, and is hinged by a hinge shaft Installed on the hinged mounting hole 662; a protective boss 659 is formed at the center of the upper end surface of the cylindrical piston body 657; The outer edge of the upper bell mouth of the cone 658 is close to the inner wall of the cylinder. When the thin-walled cone 658 is used for stroke work, the mouth of the cylinder is slightly expanded due to the impact of water pressure to achieve a better sealing effect and can withstand strong water pressure impact; the second-stage seal can be achieved by using the piston seal ring 660 , to ensure that there will be no water leakage.

When the water pump structure 6 is in use, the setting of the water outlet check valve membrane and the water inlet check valve membrane can be used to realize that the water pressure of the double pumps does not affect each other, ensuring the effectiveness of the booster of the double pumps; using the overflow column Shaped connector 618, return water sleeve 605, return water one-way valve and supporting pressure spring 622 form an independent overflow return water distribution structure, which can realize water return in case of blockage or suspension, without affecting the normal operation of the pump motor. And it has a large range of flushing frequency adjustment; the first cylinder body, the second cylinder body and two piston mechanisms are used to realize two sets of independent water supply. The synchronous crank rod piston structure realizes the supercharging effect. Because of the separate pressure regulating structure 4, a wider pressure regulating range can be realized. The frequency modulation and pressure regulation are relatively independently adjusted, so the combined output of various frequency and pressure modes can be realized. ; If the axis lines of the two drive short shafts 623 on the side of the drive gear 603 pass through the center of the drive gear 603, then the double pump is an asynchronous crank rod piston structure, which realizes the double-frequency boosting effect, and the frequency adjustment is a single pump Since there is a separate voltage regulation structure 4, a wider voltage regulation range can be achieved. Frequency regulation and voltage regulation are relatively independent adjustments, so more combined outputs of frequency and pressure modes can be realized.

As shown in Figures 5-7, the pressure regulating structure 4 includes a knob cap 401, a pressure regulating base 402, a pressure regulating cover 403, a pressure regulating dial 436 and a pressure regulating return piece; A pressure-regulating groove, on the other side of the pressure-regulating base 402 is provided with a pressure-regulating split flow inlet pipe 408 and a pressure-regulating split-flow outlet pipe 406; The pressure regulating water inlet 439 that water pipe 408 is connected with and the pressure regulating water outlet 438 that is connected with pressure regulating branch outlet water pipe 406; A pressure regulating water tank is arranged on the inner side of the tank bottom of the shaped pressure regulating groove; the pressure regulating water tank connects the pressure regulating water inlet 439 with the pressure regulating water outlet 438; the pressure regulating cover plate 403 is covered on the circular On the pressure regulating groove, a pressure regulating shaft hole 419 is provided at the center of the pressure regulating cover plate 403; a pressure regulating shaft 421 is provided at the center of the outer surface of the pressure regulating dial 436; the pressure regulating rotating shaft 421 is formed by the pressure regulating shaft hole 419 extends out of the pressure regulating cover plate 403 and is installed on the knob cap 401; the pressure regulating return flow member includes a return butt joint sleeve 409, a pressure regulating water inlet pipe 411 and a pressure regulating water outlet pipe 410; There is a pressure regulating water pipe sealing groove 414, and a pressure regulating water pipe sealing ring is installed in the pressure regulating water pipe sealing groove 414; The ring is closely attached to the inner wall of the backflow docking sleeve 409; the pressure regulating water inlet pipe 411 and the pressure regulating water outlet pipe 410 are installed on the outer wall of the backflow butt joint sleeve 409, and both are connected with the inside of the backflow butt joint sleeve 409; The pressure inlet pipe 411 and the pressure regulation outlet pipe 410 are connected in series with the hose 8 according to the water flow direction; the return water distribution pipe 617 is provided at the water inlet of the water pump structure 6; the pressure regulation diversion outlet pipe 406 is connected with the return water distribution pipe 617 Pass. The knob cap 401 and the rotating shaft connection mechanism are located outside the main casing 109 of the fuselage, and the remaining components of the pressure regulating structure 4 are installed in the lower independent waterproof cavity.

As shown in Figure 5-7, the pressure regulating water tank is composed of a section of fan-shaped notch 416 and a section of connecting water tank 417 which is gradually narrowed and arranged in an arc; Located in the inner side of the pressure regulating dial 436, the fan-shaped notch 416 communicates with the wider end of the communicating tank 417; the pressure regulating water inlet 439 communicates with the fan-shaped notch 416;

As shown in Figures 5-7, a rotating shaft connection mechanism is installed on the inner surface of the knob cap 401; the rotating shaft connection mechanism includes a central butt cylinder 425 and a branch limiter that is arranged at one end of the central butt cylinder 425 and protrudes radially. Rod 434; a limit blind hole is provided on the other end of the center butt cylinder 425; a circular limit groove 423 is provided at the center of the inner surface of the knob cap 401, and a center is provided at the center of the circular limit groove 423 A limit cylinder 422; a positioning blind hole 424 is provided at an eccentric position on the inner surface of the knob cap 401; the center butt cylinder 425 is inserted in the circular limit groove 423, and the center limit cylinder 422 is inserted in the limit blind hole; The end of the branch limiting rod 434 is provided with a positioning short rod 426 inserted into the positioning blind hole 424; the center of one end of the branch limiting rod 434 is provided with an inner hexagonal hole 428 at the center butt joint cylinder 425; The protruding end of the pressing shaft 421 is provided with a hexagonal end 431 ; the hexagonal end 431 is inserted into the inner hexagonal hole 428 . By using the cooperation of the positioning blind hole 424 and the positioning short rod 426 , the center butt joint cylinder 425 can be limited; by using the cooperation of the hexagonal end 431 and the inner hexagonal hole 428 , the transmission of the rotation action can be realized.

As shown in Figure 5-7, there are three docking claws 429 on one end of the center docking cylinder 425 provided with a branch limit rod 434; 435 ; the three docking claws 429 are buckled on the buckle convex ring 435 , and the three docking claws 429 are respectively located at thirds of the same circle. Utilize three docking claws 429 to buckle on the snap ring 435 to realize the fast docking installation of the pressure regulating shaft 421 and the shaft connection mechanism, and it can facilitate later disassembly and maintenance.

As shown in Figures 5-7, a barrier collar 433 is provided on the pressure regulating shaft 421, and a shaft sealing ring groove 432 is formed between the inner ring surface of the barrier collar 433 and the outer surface of the pressure regulating dial 436; A rotating shaft sealing ring is installed in the rotating shaft sealing ring groove 432; the rotating shaft sealing ring is in close contact with the hole wall of the pressure regulating shaft circular hole 419. The rotating shaft sealing ring can be used to rotate and seal the gap between the pressure regulating rotating shaft 421 and the pressure regulating shaft circular hole 419; the rotating shaft sealing ring can adopt an existing oil seal.

As shown in Figure 5-7, an arc-shaped rotation limit notch 437 is provided on the outer ring surface of the blocking collar 433; a rotation limit protrusion 420 is provided on the hole wall of the pressure regulating shaft circular hole 419 The rotation limit protrusion 420 is located in the rotation limit notch 437 and can slide along the rotation limit notch 437 ; The rotation angle can be limited by the cooperation of the rotation limit notch 437 and the rotation limit protrusion 420, so as to ensure that the water pressure adjustment is always within the effective adjustment range.

As shown in Figures 5-7, an annular boss 418 embedded in a circular pressure regulating groove is provided on the inner side of the pressure regulating cover plate 403; Sealing groove 430; an edge sealing ring is installed in the edge sealing groove 430; the edge sealing ring is closely attached to the edge of the circular pressure regulating groove. The sealing of the installation place of the pressure regulating cover plate 403 and the pressure regulating base 402 can be realized by using the edge sealing ring. Three assembly supports 405 are provided on the pressure regulating base 402; three assembly side ears 404 are provided at the edge of the pressure regulating cover 403; the assembly side ears 404 are fixed on the assembly supports 405 by bolts. The installation strength between the pressure regulating base 402 and the pressure regulating cover plate 403 can be ensured by the cooperative installation of the assembly support 405 and the assembly side ear 404. The pressure regulating base 402 is provided with two pressure regulating seat mounting side plates 407 for fixing the pressure regulating base 402 . It is convenient to install the pressure regulating base 402 inside the fuselage of the dental flosser through the pressure regulating seat installation side plate 407 . A docking fixing plate 412 is provided on the outer wall of the backflow docking sleeve 409; a docking support column 413 is provided on the pressure regulating base 402; The docking support column 413 and the docking fixing plate 412 are fixedly installed, which can effectively enhance the docking stability of the backflow docking sleeve 409 and the pressure regulation and split flow inlet pipe 408 .

When the pressure regulating structure 4 is in use, connect the pressure regulating water inlet pipe 411 to the water outlet of the water pump through a hose; Connected to the water inlet of the water pump; when the knob cap 401 is rotated, the pressure regulating rotary shaft 421 drives the pressure regulating dial 436 to rotate, so that the cross-sectional area of the connecting part of the connecting water tank 417 and the pressure regulating water outlet hole 438 changes gradually, that is, the amount of water flowing out is realized Therefore, the adjustment of the water pressure at the pressure regulating outlet pipe 410 is realized, and the water pressure is directly adjusted by using the diversion of water without affecting the normal operation of the driving motor, so as to ensure the service life of the driving motor.

As stated above, while the invention has been shown and described with reference to certain preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. a kind of desk-top tooth flusher, it is characterised in that: including body shell (1), handle (3), pressure adjusting structure (4), driving motor And water pump structure (6)；Body shell (1) includes tank lid (101), water tank (103), fuselage upper cover (108), fuselage main casing (109) and fuselage bottom cover (112)；Tank lid (101) lid closes in the opening of the upside of water tank (103)；In fuselage main casing (109) inside is equipped with interlayer board (110), for the internal cavities of fuselage main casing (109) to be divided into upper layer independence waterproof Cavity and lower layer's independence watertight cavity；Fuselage upper cover (108) lid closes in the opening of the upside of fuselage main casing (109)；Fuselage bottom (112) lid is covered to close in the opening of the downside of fuselage main casing (109)；The bottom of water tank (103) is fixedly mounted on fuselage upper cover (108) on；Driving motor is mounted in the independence watertight cavity of upper layer, and water pump structure (6) is mounted in lower layer's independence watertight cavity, Driving motor is for driving water pump structure (6) to work；Be provided with and communicated with main water inlet tube (116) in the bottom of water tank (103), it is main into Water pipe (116) and the water inlet of water pump structure (6) are connected to each other；Handle (3) includes handle housing, spray head retaining mechanism and water valve Mechanism；Spray head retaining mechanism is mounted in handle housing, for being locked to the tooth flusher spray head of insertion；Water valve mechanism It is mounted in handle housing, and is connected to each other and is connected to spray head retaining mechanism, opened for the water channel to tooth flusher spray head Close control；Switch hole (304) are equipped with around outer wall circumference on the outer wall of handle housing；Slidingtype is pacified on switch hole (304) Equipped with toggle switch (305)；Toggle switch (305) realizes water channel for pushing the execution unit of water valve mechanism to rotate Open and close control；The water outlet of water pump structure (6) is connected by hose (8) with the switch water inlet of water valve mechanism；Pressure adjusting structure (4) it is serially connected on hose (8), for control to be adjusted to the hydraulic pressure in hose (8).

2. desk-top tooth flusher according to claim 1, it is characterised in that: be equipped with bottom in the bottom center of water tank (103) Portion's mounting hole, and upwardly extended at bottom mounting apertures and be provided with center sleeve (104)；Center sleeve (104) is located at water tank (103) middle part；Top mounting holes (102) are equipped at tank lid (101) center, and top mounting holes (102) and center The upper orifice of pipe (104) is connected to each other；Battery mounting base (107) are equipped at the upper side center of fuselage upper cover (108)；Battery peace Seat (107) are filled in center sleeve (104)；Heat transfer column (106), heat transfer column are installed in the bottom of water tank (103) (106) lower end is protruded into fuselage main casing (109)；It is embedded in and is equipped with for adsorbing handle on the lateral surface of water tank (103) (3) fuselage magnet (105).

3. desk-top tooth flusher according to claim 1, it is characterised in that: spray head retaining mechanism includes spray head limit casing (315) and spray head locking switch；Spray head buckle notch (320) is provided through on the tube wall of spray head limit casing (315)； Spray head locking switch is mounted at spray head buckle notch (320), for the tooth flusher spray head to insertion spray head limit casing (315) Carry out buckle fixation.

4. desk-top tooth flusher according to claim 3, it is characterised in that: spray head locking switch includes press head (307), U Shape buckles (338) and rebound pressure spring (313)；Switch hole (345) are equipped on the outer wall of handle housing；It is solid that U-shaped buckles (338) Fixed to be arranged on press head (307), press head (307) is stretched out outside handle housing by switch hole (345)；U-shaped buckle (338) encloses Around setting spray head limit casing (315) periphery；Rebound pressure spring (313) be resiliently supported at the medial surface of press head (307) with Between the outer wall of spray head limit casing (315), for pushing the revolution bending segment (339) of U-shaped buckle (338) by spray head buckle slot At mouth (312) in locally embedding spray head limit casing (315).

5. desk-top tooth flusher according to claim 1, it is characterised in that: water valve mechanism includes rotary driving part and valve body Component；Rotary driving part includes connecting tube (308), upper casing (311), setting of casing (309), injector seals circle, bounces pressure spring And spray head bullet block；Upper casing (311) and setting of casing (309) are separately positioned on the upper and lower ends of connecting tube (308)；Toggle switch (305) it is fixedly mounted with upper casing (311)；Upper casing (311) is connected to each other with spray head retaining mechanism；In spray head limit casing (315) upper end outer wall is equipped with upside postive stop baffle (318)；U-shaped buckle (338) be clamped in upside postive stop baffle (318) with Between the upper orifice edge of upper casing (311)；Middle part is fixedly installed barrier ring in the pipe of connecting tube (308)；Injector seals It circle, spray head bullet block and bounces pressure spring and is sequentially arranged in connecting tube (308), and bounce pressure spring and be resiliently supported on barrier ring, Injector seals circle is located at the upper orifice of connecting tube (308)；Valve part includes rotation linkage tube (324) and switch water valve； The upper end inserting of rotation linkage tube (324) is fixed in setting of casing (309)；The lower end of rotation linkage tube (324) is fixed on switch In water valve, for the valve core rotation in driving switch water valve, the open and close control of water channel is realized.

6. desk-top tooth flusher according to claim 5, it is characterised in that: switch water valve includes cylindrical shell (329), lock Tight nut cap (322), moving valve plate (352) and quiet valve block (349)；Lock is equipped on the upper nozzle outer wall of cylindrical shell (329) Tight external screw thread (330), is provided with and communicated with water valve water inlet pipe (332) in the cylinder bottom of cylindrical shell (329)；Lock nut cap (322) threaded engagement is mounted on locking external thread (330), and is equipped with installation circular hole in the top center of locking nut cap (322) (323)；The lower end for rotating linkage tube (324) is protruded into cylindrical shell (329) by installation circular hole (323)；Moving valve plate (352) and Quiet valve block (349) is installed in cylindrical shell (329)；Rotation linkage tube (324) is for driving moving valve plate (352) relatively quiet Valve block (349) rotation；Water valve water inlet pipe (332) is connected as the switch water inlet of water valve mechanism with hose (8).

7. desk-top tooth flusher according to claim 1, it is characterised in that: water pump structure (6) include the first cylinder body (601), Second cylinder body (602), two piston mechanisms, piston driving crankshaft, water outlet connector, discharge mechanism and water intake mechanism；First Cylinder body (601) and the second cylinder body (602) are fixedly mounted side by side；Piston mechanism is by piston rod (613), axle sleeve (614) and piston Head composition；Axle sleeve (614) is fixed on one end end of piston rod (613), and piston head is hingedly mounted on piston rod (613) The other end on；The piston head of two piston mechanisms is separately mounted in the first cylinder body (601) and the second cylinder body (602)；Two The axle sleeve (614) of a piston mechanism is mounted on piston driving crankshaft, for driving two piston heads in the first cylinder body (601) and Second cylinder body pulls and pushes movement in (602)；A bar shaped is equipped at the top of the cylinder of the first cylinder body (601) and the second cylinder body (602) Extension body (663)；A water outlet side cylindricality connector (627) and one are respectively arranged on the left side and the right side in bar shaped extension body (663) A influent side cylindricality connector (665), and connect in the corresponding water outlet side cylindricality connector (627) in the left and right sides and influent side cylindricality Paddle hole (664) are provided through on connector (665)；Connection paddle hole is equipped in the inside of bar shaped extension body (663) (664) to the connection water hole of cylinder interior；Water outlet connector is mounted on discharge mechanism and two water outlet side cylindricality connectors (627) Between, for being connected to discharge mechanism and two water outlet side cylindricality connectors (627), and water outlet side cylindricality connector (627) with It is discharged between connector and is equipped with water outlet check valve film；Water intake mechanism is connected to installation with two influent side cylindricality connectors (665), and Water feeding one-way valve film is equipped between water intake mechanism and two influent side cylindricality connectors (665).

8. desk-top tooth flusher according to claim 7, it is characterised in that: be additionally provided with the connection of overflow cylindricality on discharge mechanism Head (618), and the backwater hole (643) being connected with water pump outlet pipe (606) is equipped on overflow cylindricality connector (618)；Into It is additionally provided on water dispenser structure return water sleeve (605), and is equipped in the bottom of return water sleeve (605) and is connected with pump water inlet pipe (604) Shunting water hole (629)；Overflow cylindricality connector (618), which is inserted into return water sleeve (605), realizes docking；In return water sleeve (605) return water check valve and valve support pressure spring (622) are installed in；Elasticity branch of the return water check valve in valve support pressure spring (622) It is blocked on backwater hole (643) under support effect.

9. desk-top tooth flusher according to claim 1, it is characterised in that: pressure adjusting structure (4) includes knob cap (401), adjusts Press pedestal (402), pressure regulation cover board (403), pressure regulation turntable (436) and pressure regulation return piece；One side in pressure regulation pedestal (402) It is equipped with round pressure regulation groove, pressure regulation is equipped in the another side of pressure regulation pedestal (402) and is diverted into water pipe (408) and pressure regulation shunting Outlet pipe (406)；It is equipped in the trench bottom of round pressure regulation groove and is diverted into the pressure regulation inlet opening that water pipe (408) is connected with pressure regulation (439) and with pressure regulation the pressure regulation apopore (438) that outlet pipe (406) are connected is shunted；Pressure regulation turntable (436) is mounted on circle In pressure regulation groove, and pressure regulation water is equipped on the medial surface that pressure regulation turntable (436) is mutually close to the trench bottom of round pressure regulation groove Slot；Surfe tank makes pressure regulation inlet opening (439) be connected with pressure regulation apopore (438)；Pressure regulation cover board (403) lid is closed to be adjusted in circle It presses on slot, and is equipped with pressure regulating axis circular hole (419) at the center of pressure regulation cover board (403)；Lateral surface in pressure regulation turntable (436) Pressure regulation shaft (421) are equipped at center；Pressure regulation shaft (421) is stretched out pressure regulation cover board (403) by pressure regulating axis circular hole (419) and is installed outside On knob cap (401)；Pressure regulation return piece includes reflux butt muff (409), pressure regulation water inlet pipe (411) and pressure regulation outlet pipe (410)；The end that pressure regulation is diverted into water pipe (408) is inserted into reflux butt muff (409)；Pressure regulation water inlet pipe (411) and Pressure regulation outlet pipe (410) is mounted on the outer wall of reflux butt muff (409), and the inside with reflux butt muff (409) It is connected；Pressure regulation water inlet pipe (411) and pressure regulation outlet pipe (410) are serially connected on hose (8) according to water (flow) direction；In water pump structure (6) water inlet is equipped with backwater diffluence pipe (617)；Pressure regulation shunts outlet pipe (406) and is connected with backwater diffluence pipe (617).

10. desk-top tooth flusher according to claim 8, it is characterised in that: surfe tank by one section of fan-shaped notch (416) and One section is gradually narrowed and is constituted in the connection sink (417) of circular arc setting；Fan-shaped notch (416) is located in pressure regulation turntable (436) At lateral edge, connection sink (417) be located in pressure regulation turntable (436) medial surface, fan-shaped notch (416) be connected to sink (417) wider one end is connected；Pressure regulation inlet opening (439) is connected with fan-shaped notch (416), pressure regulation apopore (438) with Connection sink (417) is connected.