CN113915374A - Improved push-button waterway switching device - Google Patents
Improved push-button waterway switching device Download PDFInfo
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- CN113915374A CN113915374A CN202111169730.0A CN202111169730A CN113915374A CN 113915374 A CN113915374 A CN 113915374A CN 202111169730 A CN202111169730 A CN 202111169730A CN 113915374 A CN113915374 A CN 113915374A
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- button
- water
- waterway
- sealing element
- push button
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
- F16K11/0445—Bath/shower selectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
- F16K31/605—Handles for single handle mixing valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Lift Valve (AREA)
Abstract
An improved button type waterway switching device comprises a water distributing body, a waterway switching valve core, a button and an elastic sheet, wherein the waterway switching valve core is at least provided with a mandril extending out of a waterway switching cavity, the mandril is used as a movable piece of the waterway switching valve core, and the water flow direction in the waterway switching cavity can be influenced by the axial displacement of the mandril; a plurality of guide mechanisms are arranged between the button and the water diversion body, and the guide mechanisms ensure that the button can realize linear sliding relative to the water diversion body; the elastic sheet is provided with a free end, the free end is at least provided with a contact area, the upper surface of the contact area can be abutted against the extending end of the ejector rod, the lower surface of the contact area is abutted against and contacted with the abutting end surface on the inner side of the button, when the button is pressed from the initial position to the pressing in-place position, the free end of the elastic sheet is driven to drive the ejector rod to axially displace, at the moment, a distance along the axial displacement direction of the ejector rod can be generated at least between the lower surface of the contact area of the elastic sheet and the abutting end surface of the button, and the distance forms the incremental stroke of the push rod driven by the button to axially displace; when the external force of the button is released, the elastic sheet can further drive the button to return to the initial position.
Description
Technical Field
The invention relates to an improved button type waterway switching device.
Background
Patent document CN10762623B discloses a shower switching valve, as shown in fig. 1, the shower switching valve 1 ' having a valve body 14 ' with an input channel 2 ' and at least one first output channel 3 ' and a second output channel 4 ', and a valve closing element 13 ' movable between at least two switching positions, the valve closing element 13 ' being realized by a combined axially movable and rotationally movable valve disk 9 ', the valve closing element 13 ' in the first switching position opening a first flow path of the input channel 2 ' to the first output channel 3 ' and closing a second flow path of the input channel 2 ' to the second output channel 4 '; in a corresponding embodiment, the valve closing element 13 ' in the second switching position opens a second flow path from the inlet channel 2 ' to the second outlet channel 4 ' and closes a first flow path from the inlet channel 2 ' to the first outlet channel 3 '. The working principle of the switching valve 1' is as follows: by means of the actuating element 6 '(push button), the switching element 7' is actuated, and during an axial displacement of the actuating element 6 'along the axis, the switching element 7' is displaced axially upwards, wherein the compression spring 10 'is tensioned, and the valve disk 9' is moved axially upwards by the switching element 7 'and lifted from its valve seat, while the valve disk 9' is rotated about the axis by a predetermined angle; after releasing the actuating element 6 ', the valve disk 9 is pressed against its valve seat again with the compression spring 10' preloaded into the rotated position, so that the valve disk 9 'can selectively conduct the liquid in the inlet channel 2' into the first outlet channel 3 'or the second outlet channel 4'.
Disclosure of Invention
The invention aims to provide an improved button type water path switching device, which is characterized in that by additionally arranging an elastic sheet, the abutting end surface on the inner side of a button can drive the contact area of the free end of the elastic sheet to generate relative displacement with the contact area, and the relative displacement can form an incremental stroke for pushing the ejector rod to axially displace, so that the required axial displacement of the ejector rod is realized by pressing the button in a narrow space, and the water path switching is realized; meanwhile, the elastic sheet can be used as a button to reset to enable the movable piece, so that the button can be reset more quickly and stably.
In order to achieve the above object, the present invention discloses an improved push button waterway switching device, comprising:
the water diversion body comprises a water inlet, a waterway switching chamber and at least two water outlets, and water flowing in through the water inlet can be communicated with any water outlet through a waterway switching chamber;
the waterway switching valve core is arranged in the waterway switching cavity and at least provided with a mandril extending out of the waterway switching cavity, the mandril is used as a driving part of the waterway switching valve core, the water flow direction in the waterway switching cavity can be influenced through the axial displacement of the mandril, and a water inlet can be selectively communicated with one of the water outlet waterways or simultaneously communicated with at least two water outlet waterways;
the button is provided with a plurality of guide mechanisms between the button and the water diversion body, and the guide mechanisms ensure that the button can realize linear sliding relative to the water diversion body;
the elastic sheet is provided with a free end, the free end is arranged between the button and the ejector rod, the free end is at least provided with a contact area, the upper surface of the contact area can be abutted against the extending end of the ejector rod, the lower surface of the contact area can be abutted against and contacted with the abutting end surface on the inner side of the button, when the button is pressed to the position from the initial position to the pressed position, the free end of the elastic sheet is driven to drive the ejector rod to axially displace, at the moment, at least a distance in the axial displacement direction of the ejector rod can be generated between the lower surface of the contact area of the elastic sheet and the abutting end surface of the button, and the distance forms an incremental stroke of the button for driving the ejector rod to axially displace; when the external force of the button is released, the elastic sheet can further drive the button to return to the initial position; when the button is pressed from the initial position to the pressing position, the stroke of the axial displacement of the ejector rod is larger than the linear displacement stroke of the button along the guide mechanism.
By adopting the design, the push rod is pushed to axially displace along the push rod by pressing the button, and the elastic sheet is additionally arranged, so that the abutting end surface on the inner side of the button can drive the contact area of the free end of the elastic sheet to generate relative displacement along the axial displacement direction of the push rod, and the relative displacement can form an incremental stroke for pushing the axial displacement of the push rod, thereby realizing the required axial displacement of the push rod in a very narrow space by pressing the button and further realizing the water path switching; meanwhile, after the external force of the button is released, when the elastic restoring force of the elastic piece is not enough to enable the button to return to the initial position, the elastic piece can serve as the button to reset to enable the movable piece, and the button can be quickly and stably reset.
One of the embodiments related to how the waterway switching can be realized through the axial displacement of the mandril is as follows: a jack seat and water passing channels with the same number as the water outlets are formed in the waterway chamber, and each water passing channel is communicated with the corresponding water outlet; the inner wall of the jack seat is provided with first inclined matching parts at intervals; the water path switching valve core is also provided with a water sealing element and an elastic part, the water sealing element is at least provided with a blocking piece and a connector which can be used for driving the water sealing element to rotate around the axis of the water sealing element, second inclined matching parts are arranged at intervals on the connector, the second inclined matching parts can slide relative to the first inclined matching parts, and the water sealing element can move along the axial direction of the water path switching cavity; a working head is convexly arranged at one end of the ejector rod facing the connector, third inclined matching parts are arranged at intervals on the working head, the third inclined matching parts can be arranged in the jack seat, the third inclined matching parts and the first inclined matching parts are arranged in a staggered mode, each third inclined matching part can displace along the axial direction of the jack seat by utilizing a gap between the first inclined matching parts, and the third inclined matching parts and the second inclined matching parts are mutually abutted and generate relative sliding; the elastic piece acts on the water sealing element, and the second inclined matching part and the first inclined matching part of the connector slide relatively through the elastic restoring force generated by the elastic piece; the push button is pressed to push the linkage fit among the third inclined fit part of the working head of the ejector rod, the second inclined fit part of the connector of the water sealing element and the first inclined fit part in the jack seat, the water sealing element at least has two stable positions, one stable position is adopted, one of the water passing channels is completely blocked by one of the blocking pieces of the water sealing element, and the other stable position is adopted, and the two water passing channels are partially blocked by the blocking piece of the water sealing element.
By adopting the design, the push button is pressed to push the push rod to axially displace, so that the water sealing element axially moves and rotates in the water channel switching chamber, the blocking piece is selected to completely block one of the water passing channels or partially block two of the water passing channels, thereby realizing water channel switching, specifically, the push button is pressed to push the third inclined matching part of the working head of the push rod and the second inclined matching part of the connector of the water sealing element to relatively slide, so as to drive the water sealing element to overcome the elastic deformation of the elastic piece, so that the water sealing element axially displaces and circumferentially deflects, after the external force of the push button is released, the elastic deformation force of the elastic piece drives the water sealing element to reset, so that the second inclined matching part of the connector of the water sealing element and the first inclined matching part of the jack seat relatively slide, the water sealing element is also driven to axially displace and circumferentially deflect, and finally the second inclined matching part is clamped in a gap between two adjacent first inclined matching parts The water sealing element forms a stable position, and the water sealing element can be switched among different stable positions, so that the waterway switching is realized.
Drawings
The detailed description, given as a non-limiting example, better explains what the invention includes and can be implemented, and moreover, refers to the accompanying drawings, in which:
fig. 1 discloses a shower switch valve for patent document CN 10762623B;
FIG. 2 is an exploded view of the waterway switching device of the present invention;
FIG. 3 is a state diagram of the waterway switching device when the button is at the initial position;
FIG. 4 is a state diagram of the waterway switching device when the button is pressed to the home position;
FIGS. 5 to 8 are views showing the state of the water sealing member of the present invention in four stable positions;
FIG. 9 is an inside structural view of the push button of the present invention;
FIG. 10 is a structural view of a guide unit of the present invention;
FIG. 11 is a schematic diagram showing the movement traces of the push button, the push rod and the elastic sheet according to the present invention;
FIG. 12 is a schematic view showing the positional relationship among the carrier rod, the guide post, the stop end face and the abutting end face according to the present invention.
Description of the figures
The water distributing body 1, a water inlet 11, a waterway switching chamber 12, a jack seat 121, a first inclined matching part 1211, a water passing channel 122, a blind hole 123, a cover body 124 and a water outlet 13; the water path switching valve core 2, the ejector rod 21, the working head 211, the third inclined matching part 2111, the guide hole 212, the arc-shaped matching part 213, the water sealing element 22, the blocking piece 221, the connector 222, the second inclined matching part 2221, the second counter bore 223, the elastic part 23 and the pin shaft 24; button 3, tab 31, top face 311; the guide mechanism 4, the guide post 41, the rectangular block 411, the cylinder 412, the sliding groove 42, the straight groove 421 and the cylindrical groove 422; the guide unit 5, the elastic sheet 6, the free end 61, the contact area A, the abutting end face B, the stop end face C, the arc-shaped groove 611, the side wing 612, the fixed end 62, the displacement space S and the contact branch line D.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 2 to 4, an improved button-type waterway switching device includes:
the water diversion body 1 comprises a water inlet 11, a waterway switching chamber 12 and at least two water outlets 13, and water flowing in through the water inlet 11 can be communicated with any water outlet 13 through a waterway switching chamber 12. In the present embodiment, the cover 124 and the waterway switching chamber 12 are designed to be separated from each other, which certainly does not exclude that the cover 124 and the waterway switching chamber 12 may be integrally formed with the improvement of the production process in the future, such as the popularization of 3D printing technology. A jack seat 121 and water passing channels 122 with the same number as the water outlets 13 are formed in the waterway chamber, each water passing channel 122 is communicated with the corresponding water outlet 13, the jack seat 121 is a second counter bore, a plurality of first inclined matching portions 1211 are uniformly distributed on the inner wall of the jack seat 121 at intervals, and in this embodiment, four first inclined matching portions 1211 are uniformly distributed on the inner wall of the jack seat 121 at intervals.
And the waterway switching valve core 2 is arranged in the waterway switching chamber 12, and the waterway switching valve core 2 comprises a mandril 21, a water sealing element 22, an elastic element 23 and a pin shaft 24. A working head 211 is convexly arranged at one end of the ejector rod 21 facing the connecting head 222, third inclined matching portions 2111 are arranged at intervals on the working head 211, the third inclined matching portions 2111 can be arranged in the jack seat 121, the third inclined matching portions 2111 and the first inclined matching portions 1211 are arranged in a staggered mode, and each third inclined matching portion 2111 can be displaced along the axial direction of the jack seat 121 by utilizing a gap between the first inclined matching portions 1211. The water sealing element 22 has a blocking piece 221 and a connector 222 for driving the water sealing element 22 to rotate around its axis, the connector 222 is provided with second inclined matching portions 2221 at intervals, the second inclined matching portions 2221 are arranged in the socket 121, the second inclined matching portions 2221 and the third inclined matching portions 2111 are abutted against each other, and can slide relative to the first inclined matching portions 1211 and the third inclined matching portions 2111. A displacement space S for leading the water sealing element 22 to move along the axial direction is arranged between the top wall of the waterway switching chamber 12 and the water sealing element 22, and a blind hole 123 is formed on the end surface of one side, facing the water sealing element 22, of the top wall; the position of the water sealing element 22 opposite to the blind hole 123 is provided with a first counter bore 223, the elastic member 23 is disposed between the blind hole 123 and the first counter bore 223, the elastic member 23 acts on the water sealing element 22, and the second inclined matching portion 2221 of the connector 222 and the first inclined matching portion 1211 generate relative sliding through the elastic restoring force generated by the elastic member 23. The top rod 21 extends inwards from the working head 211 along the axial direction to form a guide hole 212, one end of the pin shaft 24 penetrates through the first counter bore 223 and the guide hole 212 in sequence, the other end of the pin shaft abuts against the blind hole 123 of the top wall, the elastic part 23 acts on the pin shaft 24, the pin shaft 24 can always abut against the blind hole 123 through elastic restoring force generated by the elastic part 23, and the arrangement of the pin shaft 24 enables the water sealing element 22 to move along the axial direction under the pushing of the top rod 21 and rotate in the circumferential direction stably, so that deflection is not easy to generate.
A button 3, as shown in fig. 9, a plurality of guide mechanisms 4 are arranged between the button 3 and the water distributor 1, the guide mechanisms 4 are that a plurality of oblique guide posts 41 are convexly arranged on the inner side end surface of the button 3, a plurality of linear slide grooves 42 matched with the guide posts 41 are arranged at the bottom of the water distributor 1, and each guide post 41 slides along each corresponding slide groove 42 to ensure that the button 3 can linearly slide relative to the water distributor 1; preferably, as shown in fig. 9 and 10, in order to enable the button 3 to slide linearly and more stably relative to the water distributing body 1, the number of the guide pillars 41 is two, the guide pillars 41 are distributed on two sides of the button 3, each guide pillar 41 is formed by splicing a rectangular block 411 and a cylindrical body 412, a straight through groove 421 and a cylindrical through groove 422 are arranged at the bottom of the water distributing body 1 corresponding to the rectangular block 411 and the cylindrical body 412, the straight through groove 421 and the cylindrical through groove 422 form the sliding groove 42, and each rectangular block 411 and each cylindrical body 412 slide linearly along the corresponding straight through groove 421 and the cylindrical through groove 422; more preferably, a guide unit 5 is fixedly arranged at the bottom of the water diversion body 1, as shown in fig. 10, a straight chute 42 originally arranged at the bottom of the water diversion body 1 is changed to be arranged on the guide unit 5, and the guide unit 5 is arranged on the water diversion body 1 in a split design manner, so that the mold opening cost of the water diversion body 1 is reduced.
The elastic sheet 6 is provided with a free end 61, the free end 61 is arranged between the button 3 and the ejector rod 21, the free end 61 of the elastic sheet has at least one contact area A, the contact area A is located in an area where the free end 61 of the elastic sheet is located and can be contacted with the ejector rod 21 and the button 3, specifically, the lower surface of the contact area A of the elastic sheet 6 can be mutually abutted and contacted with an abutting end surface B on the inner side of the button 3, the upper surface of the contact area A can be abutted against an extending end of the ejector rod 21, it needs to be noted that when the button 3 is in an initial position, the ejector rod 21 cannot be guaranteed to always abut against the upper surface of the contact area A of the elastic sheet 6 due to some processing errors, and therefore a fit gap may exist between the upper surface of the contact area A of the elastic sheet 6 and the extending end of the ejector rod 21. Through pressing button 3, when button 3 from initial position to pressing the position in place, drive shell fragment free end 61 and drive ejector pin 21 and carry out the displacement along the axial, can produce the interval along ejector pin 21 axial displacement direction between the lower surface of the contact area A of shell fragment 6 and the butt terminal surface B of pressing against of button 3 at least this moment, this interval constitutes button 3 drive ejector pin 21 axial displacement's increment stroke. In this embodiment, the head of the spring plate free end 61 has two symmetrically disposed side wings 612, the two side wings 612 are located in the range of the contact area a of the spring plate free end 61, a protrusion 31 is disposed on the inner end surface of the button 3 corresponding to each side wing 612, the side wings 612 and the top end surface θ of the protrusion 31 are always in abutting contact with each other, and the top end surface 311 of the protrusion 31 is an abutting end surface on the inner side of the button 3. When the button 3 is at the initial position, the elastic sheet free end 61 is at least positioned in the contact area a and can abut against the end face B with the button 3 to form surface contact, the fixed end 62 of the elastic sheet 6 is arranged on one side of the water distributing body 1, as shown in fig. 11, when the button 3 is pressed, a contact branch line D in line-surface fit is formed between the side wing 612 of the elastic sheet 6 and the top end face 311 of the projection 31, the contact branch line D serves as an upwarping fulcrum of the contact area a of the elastic sheet free end 61, and the contact branch line D is positioned in the position range from the lower surface of the contact area a to the elastic sheet fixed end 62 relative to the position of the ejector rod 21. When the button 3 is pressed to the in-place position from the initial position, the included angle gamma between the lower surface of the contact area A of the free end 61 of the elastic sheet and the abutting end surface of the button 3 is gradually increased, so that the head of the free end 61 of the elastic sheet is tilted upwards, the elastic sheet 6 has certain rigidity, and when the contact branch line D drives the head of the free end 61 of the contact branch line D to upwards form an incremental stroke, the elastic sheet cannot deform due to the fact that the ejector rod 21 is squeezed. After 3 external forces of button release, shell fragment 6 and elastic component 23 combined action orders about button 3 and gets back to initial position, through addding shell fragment 6, makes button 3 can reset fast and steadily.
As shown in fig. 12, a stop end surface C perpendicular to the top bar 21 is formed at the bottom of the waterway switching chamber 12 of the water distributing body 1, and when the button 3 is in the pressed-in-place position, the free end 61 of the elastic sheet 6 touches the stop end surface C. An included angle theta is formed between the abutting end face B and the stopping end face C of the button 3, at least when the button 3 is in the same position state, an interval L is formed from the abutting end face B to the stopping end face C along the direction of the ejector rod 21, and the length of the interval L is gradually reduced from one end, far away from the fixed end 62, of the abutting end face B to one end, close to the fixed end 62. 3 guiding mechanism 4 of button and ejector pin 21 non-parallel arrangement, end minimum contained angle alpha between position terminal surface C and the ejector pin 21 > end minimum contained angle beta between position terminal surface C and the guiding mechanism 4, make button 3 along the switching stroke of 4 pressing strokes of guiding mechanism > ejector pin 21, both satisfied in the narrow and small space through pressing button 3 realization water route switching, satisfy again that button 3 has enough long stroke of pressing, make it have good pressing and feel.
The end of the top rod 21 facing the free end 61 of the spring plate 6 is provided with an arc-shaped matching part 213, the free end 61 of the spring plate 6 is provided with an arc-shaped groove 611 on the side facing the top rod 21, and the arc-shaped matching part 213 of the top rod 21 can realize slight displacement in the arc-shaped groove 611, so that the top rod 21 can not knock with the spring plate 6 to generate noise.
By pressing the button 3, the free end 61 of the elastic sheet 6 is driven to push the third inclined matching portion 2111 of the working head 211 of the ejector rod 21 and the second inclined matching portion 2221 of the connector 222 of the water sealing element 22 to relatively slide, so as to drive the water sealing element 22 to overcome the elastic deformation of the elastic member 23, so that the water sealing element 22 axially displaces and circumferentially deflects, when the external force of the button 3 is released, the elastic deformation force of the elastic member 23 drives the water sealing element 22 to reset, so that the second inclined matching portion 2221 of the connector 222 of the water sealing element 22 and the first inclined matching portion 1211 of the socket 121 relatively slide, and the water sealing element 22 is also driven to axially displace and circumferentially deflect, and finally the second inclined matching portion 2221 is clamped in a gap between two adjacent first inclined matching portions 1211, so as to form a stable position for the water sealing element 22. As shown in fig. 5 to 8, in the present embodiment, the water sealing element 22 has four stable positions, and by pressing the button 3, the water sealing element 22 is lifted between the different stable positions and rotated in a circumferential direction orthogonal to the lifting movement, so that the blocking piece 221 of the blocking element alternatively blocks one of the water passages 122 completely or partially blocks two of the water passages 122, and thus the water inlet 11 of the water diversion body 1 is alternatively communicated with one of the water outlets 13 in a mutual water path or simultaneously communicated with two of the water outlets 13 in a mutual water path.
The core of the invention is that the push rod 21 is pushed to move along the axial direction by pressing the button 3, and the elastic sheet 6 is additionally arranged, so that the abutting end face B at the inner side of the button 3 can drive the contact area A of the free end 61 of the elastic sheet to move relative to the contact area A along the axial displacement direction of the push rod, and the relative displacement can form an incremental stroke for pushing the push rod 21 to move axially, thereby realizing the required axial displacement of the push rod 21 by pressing the button 3 in a narrow space, further driving the water sealing element 22 to move axially and rotate circumferentially to different stable positions, and enabling the blocking sheet 221 to completely block one of the water passing channels 122 or partially block two of the water passing channels 122, thereby realizing the water path switching; meanwhile, after the external force of the button 3 is released, when the elastic restoring force of the elastic element 23 is insufficient to return the button 3 to the initial position, the elastic sheet 6 can further drive the button 3 to return to the initial position, and the elastic sheet 6 can be used as a return moving element of the button 3, so that the button 3 can be returned more quickly and stably.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (15)
1. An improved push button waterway switch device, comprising:
the water diversion body (1) comprises a water inlet (11), a waterway switching chamber (12) and at least two water outlets (13), and water flowing in through the water inlet (11) can be communicated with any water outlet (13) through a waterway by the waterway switching chamber (12);
the waterway switching valve core (2) is arranged in the waterway switching chamber (12) and at least provided with a mandril (21) extending out of the waterway switching chamber (12), the mandril (21) is used as a moving part of the waterway switching valve core (2), and the water flow direction in the waterway switching chamber (12) can be influenced by the axial displacement of the mandril (21), so that the water inlet (11) can be selectively communicated with one waterway of the water outlets (13) or simultaneously communicated with at least two waterways of the water outlets (13);
the button (3) is provided with a plurality of guide mechanisms (4) between the button (3) and the water distributing body (1), and the guide mechanisms (4) ensure that the button (3) can linearly slide relative to the water distributing body (1);
a spring plate (6), the spring plate (6) is provided with a free end (61), the free end (61) is arranged between the button (3) and the ejector rod (21), and the free end (61) at least has a contact area (A), the upper surface of the contact area (A) can be abutted against the extending end of the mandril (21), the lower surface of the push button can be in abutting contact with an abutting end surface (B) at the inner side of the push button (3), and by pressing the push button (3), when the button (3) is pressed to the position in place from the initial position, the free end (61) of the elastic sheet is driven to drive the ejector rod (21) to axially displace, at least a distance along the axial displacement direction of the ejector rod (21) is generated between the lower surface of the contact area (A) of the elastic sheet (6) and the abutting end surface (B) of the button (3), the distance forms an incremental stroke of the push button (3) for driving the ejector rod (21) to axially displace; when the external force of the button (3) is released, the elastic sheet (6) can further drive the button (3) to return to the initial position from the pressed position.
2. An improved push button waterway switch device as recited in claim 1, wherein: the stiff end (62) of shell fragment (6) set up in minute water body (1) one side, and when pressing button (3), this shell fragment (6) contact area (A) lower surface and the support of button (3) form line and face complex contact branch line (D) between the terminal surface, and this contact branch line (D) upwarps the fulcrum as shell fragment free end (61) contact area (A).
3. An improved push button waterway switch device as recited in claim 2, wherein: divide the water route of water body (1) to switch cavity (12) bottom and form and ejector pin (21) mutually perpendicular's end position terminal surface (C), button (3) guiding mechanism (4) and ejector pin (21) non-parallel arrangement, end contained angle alpha between position terminal surface (C) and ejector pin (21) > end position terminal surface (C) and guiding mechanism (4) between minimum contained angle beta, when button (3) from initial position to pressing the position in place, shell fragment (6) contact area (A) lower surface and the support of button (3) and lean on contained angle gamma between terminal surface (B) and increase gradually, make the head upwarp of shell fragment free end (61).
4. An improved push button waterway switch device as recited in claim 3, wherein: the push button (3) lean on and form an contained angle theta between terminal surface (B) and the end face (C) of ending, and be in the same position state at button (3) at least, lean on terminal surface (B) to end terminal surface (C) and form interval L along the ejector pin direction, the length of this interval L is from leaning on terminal surface (B) to keeping away from the one end of stiff end (62) to the one end of approaching stiff end (62) and progressively dwindle.
5. An improved push button waterway switch device as recited in claim 4, wherein: when the button (3) is in the initial position, the free end (61) of the spring plate can form surface contact with the abutting end surface (B) of the button (3) at least in the contact area (A).
6. An improved push button waterway switch device as recited in claim 1, wherein: the abutting end face (B) of the button (3) is arranged on a lug (31) on the inner side end face of the button (3), and the top end face (311) of the lug (31) is the abutting end face (B).
7. An improved push button waterway switch device as recited in claim 6, wherein: the head of the free end (61) of the elastic sheet is provided with two symmetrically arranged side wings (612), the two side wings (612) are positioned in the range of a contact area (A) of the free end (61) of the elastic sheet, the convex blocks (31) are respectively arranged at the corresponding side wings (612), and the side wings (612) are in abutting contact with the top end surfaces (311) of the convex blocks (31).
8. An improved push button waterway switch device as recited in claim 1, wherein: one end of the ejector rod (21) facing the free end (61) of the elastic sheet (6) is provided with an arc-shaped matching part (213).
9. An improved push button waterway switch device as recited in claim 8, wherein: the free end (61) of the elastic sheet (6) is provided with an arc-shaped groove (611) on the end surface facing the ejector rod (21), and the arc-shaped matching part (213) can realize micro displacement in the arc-shaped groove (611).
10. An improved push button waterway switch device as recited in claim 1, wherein: a jack seat (121) and water passing channels (122) with the same number as the water outlets (13) are formed in the waterway switching chamber (12), and each water passing channel (122) is communicated with the corresponding water outlet (13); the inner wall of the jack seat (121) is provided with first inclined matching parts (1211) at intervals; the waterway switching valve core (2) is also provided with a water sealing element (22) and an elastic piece (23), the water sealing element (22) is at least provided with a blocking piece (221) and a connector (222) which can be used for driving the water sealing element (22) to rotate around the axis of the waterway switching valve core, the connector (222) is provided with second inclined matching parts (2221) at intervals, the second inclined matching parts (2221) can generate relative sliding with the first inclined matching parts (1211), and the water sealing element (22) can move in the waterway switching chamber (12) along the axial direction of the waterway switching chamber; one end, facing the connecting head (222), of the ejector rod (21) is convexly provided with a working head (211), the working head (211) is provided with third inclined matching parts (2111) at intervals, the third inclined matching parts (2111) can be arranged in the jack seat (121), the third inclined matching parts (2111) and the first inclined matching parts (1211) are arranged in a staggered mode, each third inclined matching part (2111) can move along the axial direction of the jack seat (121) by utilizing a gap between the first inclined matching parts (1211), and the third inclined matching parts (2111) and the second inclined matching parts (2221) are abutted against each other and generate relative sliding; the elastic piece (23) acts on the water sealing element (22), and the second inclined matching part (2221) of the connector (222) and the first inclined matching part (1211) slide relatively through the elastic restoring force generated by the elastic piece (23); the water sealing element (22) is at least provided with two stable positions, wherein one stable position is selected by a blocking piece (221) of the water sealing element (22) to completely block one water passing channel (122), and the other stable position is selected by the blocking piece (221) of the water sealing element (22) to partially block two water passing channels (122).
11. An improved push button waterway switch device as recited in claim 10, wherein: the movement of the water-sealing element (22) between the various stable positions comprises a lifting movement and a circumferential rotation movement orthogonal to the lifting movement.
12. An improved push button waterway switch device as recited in claim 1, wherein: a plurality of guide mechanisms (4) are arranged between the button (3) and the water distributing body (1), a plurality of inclined guide posts (41) are convexly arranged on the inner side end face of the button (3), a plurality of linear sliding grooves (42) matched with the guide posts (41) are arranged at the bottom of the water distributing body (1), and each guide post (41) slides along each corresponding sliding groove (42).
13. An improved push button waterway switch device as recited in claim 12, wherein: the bottom of the water distributing body (1) is fixedly provided with a guide unit (5), and a straight sliding chute (42) originally arranged at the bottom of the water distributing body (1) is changed into a straight sliding chute arranged on the guide unit (5).
14. An improved push button waterway switch device as recited in claim 10, wherein: a displacement space (S) enabling the water sealing element (22) to move along the axial direction is formed between the top wall of the waterway switching chamber (12) and the water sealing element (22), and a blind hole (123) is formed in the end face of one side, facing the water sealing element (22), of the top wall; the position of the water sealing element (22) opposite to the blind hole (123) is provided with a first counter bore (223), and the elastic piece (23) is arranged between the blind hole (123) and the first counter bore (223); the jack seat (121) is a second counter bore, and the connector (222) of the water sealing element (22) and the working head (211) of the ejector rod (21) are both arranged in the jack seat (121).
15. An improved push button waterway switch device as recited in claim 14, wherein: the ejector rod (21) extends inwards from the working head (211) along the axial direction to form a guide hole (212); the waterway switching valve core (2) further comprises a pin shaft (24), one end of the pin shaft (24) is sequentially penetrated in the first counter bore (223) and the guide hole (212), and the other end of the pin shaft is propped against the blind hole (123) of the top wall; the elastic piece (23) acts on the pin shaft (24), and the pin shaft (24) can always abut against the blind hole (123) through elastic restoring force generated by the elastic piece (23).
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| CN202111169730.0A CN113915374B (en) | 2021-10-08 | 2021-10-08 | Improved button type waterway switching device |
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| CN202111169730.0A CN113915374B (en) | 2021-10-08 | 2021-10-08 | Improved button type waterway switching device |
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| CN113915374B (en) | 2023-10-13 |
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