CN113996508A - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN113996508A CN113996508A CN202110810883.2A CN202110810883A CN113996508A CN 113996508 A CN113996508 A CN 113996508A CN 202110810883 A CN202110810883 A CN 202110810883A CN 113996508 A CN113996508 A CN 113996508A
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- Prior art keywords
- transmission
- unit
- sleeve
- axial
- ball
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
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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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses an electric tool, comprising: a housing; the output mechanism is arranged at the front end of the shell; the power mechanism is used for providing power for the output mechanism; the drive mechanism, the transmission is connected power unit with output mechanism includes: the screw rod extends along the front-back direction and is connected with the output mechanism; the rotating unit is in transmission connection with the power mechanism and is driven by the power mechanism to rotate around the screw rod; the drive mechanism further includes a drive connection assembly, the drive connection assembly including: a radial transmission unit driven to rotate by the rotation unit; the axial transmission unit is respectively and rotationally connected with the radial transmission piece and the screw rod and drives the screw rod to move along the axial direction of the screw rod; and the torque transmission part is arranged between the radial transmission part and the axial transmission part and is used for transmitting torque and enabling the axial transmission part and the radial transmission part to synchronously rotate.
Description
Technical Field
The invention relates to an electric tool, in particular to an electric glue gun.
Background
Electronic gluey rifle sets up to usually to be rotatory by motor drive lead screw, the lead screw is supported to rotate in screw-nut and for screw-nut along rectilinear movement, thereby realize extruding of binder in the packing element and glue, but current electronic gluey rifle, the ability of bearing the output end load is limited, change along with the load leads to the lead screw propulsive speed uncontrollable easily, especially when the load is great, the lead screw easily skids for screw-nut, can't impel even and realize out gluey, consequently, the lead screw among the prior art easily has the uncontrollable or unable propulsive problem of propulsion speed along with the change of load, lead to electronic gluey rifle to have out gluey unstability or the unable circumstances of gluing to produce from this, make the operating mode that electronic gluey rifle is suitable for obviously receive the restriction.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the electric glue gun with stable glue discharging.
In order to achieve the above object, the present invention adopts the following technical solutions:
a power tool, comprising:
a housing;
the output mechanism is arranged at the front end of the shell;
the power mechanism is used for providing power for the output mechanism;
the drive mechanism, the transmission is connected power unit with output mechanism includes:
the screw rod extends along the front-back direction and is connected with the output mechanism;
the rotating unit is in transmission connection with the power mechanism and is driven by the power mechanism to rotate around the screw rod;
the drive mechanism further includes a drive connection assembly, the drive connection assembly including:
a radial transmission unit driven to rotate by the rotation unit;
the axial transmission unit is respectively and rotationally connected with the radial transmission piece and the screw rod and drives the screw rod to move along the axial direction of the screw rod;
and the torque transmission part is arranged between the radial transmission part and the axial transmission part and is used for transmitting torque and enabling the axial transmission part and the radial transmission part to synchronously rotate.
Further, radial transmission unit includes first transmission cover, the radial outside of first transmission cover be equipped with the driving tooth that the rotation unit transmission is connected, torque transmission portion is including locating first transmission cover with make the first torque transmission portion of the synchronous rotation of the two between the axial driving spare.
Further, first torque transmission portion is including locating a plurality of first non-circular portions of first transmission cover internal periphery, and locate a plurality of second non-circular portions of axial driving medium periphery, second non-circular portion with first non-circular portion cooperation.
Further, the axial transmission unit comprises a ball frame and balls, the ball frame is in transmission connection with the first transmission sleeve, the ball frame is sleeved on the periphery of the screw rod, and through holes allowing the balls to penetrate through are formed in the frame wall of the ball frame.
Further, the radial transmission unit further comprises a second transmission sleeve, the second transmission sleeve is sleeved on the periphery of the ball frame, and a staying groove allowing the ball to enter is formed in the inner peripheral wall of the second transmission sleeve.
Further, the torque transmission part also comprises a second torque transmission part which is arranged between the second transmission sleeve and the axial transmission member and enables the second transmission sleeve and the axial transmission member to synchronously rotate.
Further, the second torque transmission part comprises a rotation stopping pin, a mounting hole formed in the second transmission sleeve and a pin groove formed in the ball frame, and the pin groove extends along the axial direction of the ball frame.
Furthermore, the periphery of the second transmission sleeve is also provided with a third non-circular part, and the third non-circular part is matched with the first non-circular part to limit the second transmission sleeve to rotate relative to the first transmission sleeve.
Furthermore, the first non-circular part is a plane arranged on the inner periphery of the first transmission sleeve, and the second non-circular part is a plane arranged on the outer periphery of the ball frame; the third non-circular part is a plane arranged on the periphery of the second transmission sleeve.
Furthermore, the rotating unit comprises a driving gear and a sleeve, the driving gear and the sleeve are coaxially arranged, the driving gear is in transmission connection with the power mechanism, and a transmission hole suitable for inserting the transmission teeth is formed in the sleeve.
Further, the clutch mechanism is further included, the clutch mechanism drives the axial transmission piece to move to a clutch position, and when the axial transmission piece is located at the clutch position, the ball is separated from the screw rod.
Furthermore, the clutch mechanism comprises a moving unit and a connecting unit, the connecting unit is connected with the ball frame, the moving unit is sleeved on the conversion sleeve, and the moving unit drives the connecting unit to drive the ball frame to move axially.
Further, the clutch mechanism further comprises a trigger unit, and the trigger unit is used for driving the moving unit to move to the clutch position.
Furthermore, the trigger unit is a shifting lever or a shifting fork, and the shifting lever or the shifting fork is pivoted with the machine shell; the connecting unit is an inserting piece clamped at the axial end part of the ball frame.
Further, the output mechanism is a rubber cylinder, and the electric tool is a rubber gun.
Further, still include operating handle, operating handle sets up in the rear end portion of lead screw.
The invention has the advantages that:
according to the electric tool, the torque transmission part is arranged between the radial transmission part and the axial transmission part and is used for transmitting torque and enabling the axial transmission part and the radial transmission part to rotate synchronously, so that the condition that the radial transmission part and the axial transmission part slip due to relative rotation of the radial transmission part and the axial transmission part is avoided, the condition that the axial transmission part transmits power to the screw rod discontinuously is also avoided, the screw rod is further ensured to move stably all the time, and the gluing operation is more stable and uniform.
Drawings
FIG. 1 is a schematic view of the construction of the power tool of the present invention;
FIG. 2 is a front view of the power tool of FIG. 1;
FIG. 3 is a top view of the power tool of FIG. 1;
FIG. 4 is a cross-sectional view of the power tool of FIG. 3 taken along line A-A;
FIG. 5 is an assembled schematic view of the transmission mechanism, trigger mechanism and power mechanism of FIG. 1;
FIG. 6 is a top view of the transmission mechanism, trigger mechanism and power mechanism of FIG. 5;
FIG. 7 is a cross-sectional view of the power tool of FIG. 6 taken along line B-B;
FIG. 8 is an assembled view of the rotary unit, the radial transmission unit and the axial transmission unit in the transmission mechanism of the power tool of the present invention;
FIG. 9 is a schematic view of the assembly of the first driving sleeve, the second driving sleeve and the ball cage in the driving mechanism of the power tool of the present invention;
FIG. 10 is an operational view of section C of FIG. 7;
fig. 11 is an operation diagram of another state of the portion C of fig. 7.
Description of reference numerals:
100-glue gun; 110-a housing;
200-an output mechanism; 210-a glue cylinder; 220-push plate;
300-a motor;
400-a transmission mechanism;
410-a screw rod; 411-the guide plane; 412-thread groove;
420-a gearbox; 421-a rotation unit; 4211-drive hole;
430-radial transmission unit; 431-gear teeth; 432-a first drive sleeve; 433-a second transmission sleeve; 4331-mounting holes; 434-a residence tank;
440-an axial transmission unit;
441-ball rack; 4411-pin grooves; 442-a sliding connection; 443-a through hole; 444-rolling balls; 445-rotation stop pin;
451-a first non-circular portion; 452-a second non-circular portion; 453-third non-circular portion;
500-operating a handle;
610-a trigger unit; 611-a button; 612-a deflector rod; 620-mobile unit; 621-flange; 630-a connection unit;
700-a spring;
800-a battery pack;
910-a switch assembly; 920-control mechanism.
Detailed Description
Fig. 1 to 3 show an electric tool, specifically an electric glue gun 100, according to the present invention, for implementing hand-held glue application. The glue gun 100 includes a housing 110, an output mechanism 200, a power mechanism and a transmission mechanism 400.
Referring to fig. 1 and 4, the output mechanism 200 is disposed at the front end of the housing 110 and can move forward to apply glue and move backward to reset. The power mechanism 300 provides power to the output mechanism 200, and the power mechanism 300 according to the embodiment of the present invention is specifically a motor.
As shown in fig. 2 and 4, a transmission mechanism 400 according to an embodiment of the present invention is drivingly connected to the motor 300 and the output mechanism 200, wherein the output mechanism 200 includes a rubber cylinder 210 and a push plate 220, a binder is stored in the rubber cylinder 210, and the push plate 220 is disposed in the rubber cylinder 210 for moving along an axial direction of the rubber cylinder 210 to extrude the rubber.
Referring to fig. 5 to 7, the transmission mechanism 400 includes a screw 410, a rotation unit 421, a radial transmission unit 430, and an axial transmission unit 440. The screw 410 extends in the front-back direction, the screw 410 is connected with the output mechanism 200, specifically, the front end of the screw 410 is fixedly provided with the push plate 220, the push plate 220 moves back and forth along with the screw 410 in the axial direction, the rear end of the screw 410 is provided with the operating handle 500, and the operating handle 500 is used for a user to operate and pull the screw to return backwards. As shown in fig. 5, the rotating unit 421 is drivingly connected to the motor 300 and is driven by the motor 300 to rotate around the screw 410.
Referring to fig. 7, the radial transmission unit 430 in the present embodiment is driven to rotate by the rotation unit 421, and the axial transmission unit 440 is rotatably connected to the radial transmission unit 430 and the lead screw 410, respectively; the axial transmission unit 440 is driven to rotate by the radial transmission unit 430, and the screw rod 410 is driven to translate back and forth along the axial direction by the rotation of the axial transmission unit 440.
As shown in fig. 5 and 8, the rotating unit 421 includes a driving gear and a sleeve, the driving gear and the sleeve are coaxially disposed at an axial end portion thereof, in the present embodiment, the driving gear and the sleeve are integrally formed, the driving gear is in transmission connection with the power mechanism, specifically, the driving gear is engaged with the output gear of the gear box 420, and the sleeve is provided with a transmission hole 4211.
As shown in fig. 8 to 9, the radial transmission unit 430 includes a transmission tooth 431 and a first transmission sleeve 432, the transmission tooth 431 is disposed on a radial outer side of the first transmission sleeve 432, the transmission tooth 431 is driven to rotate by the rotation unit 421, specifically, the transmission tooth 431 is inserted into a transmission hole 4211 on the rotation unit 421 and driven to rotate by the rotation unit 421, and the axial transmission unit 440 is inserted into the first transmission sleeve 432 and axially slidably connected with an inner periphery of the first transmission sleeve 432. Wherein the driving teeth 431 and the first driving sleeve 432 in this embodiment are integrally formed.
As shown in fig. 8 to 9, the axial transmission unit 440 includes a ball frame 441 and balls 444, wherein an axial end portion of the ball frame 441 is provided with a slide coupling portion 442, and the slide coupling portion 442 in the present embodiment is an end plate integrally formed with the ball frame 441. The sliding connection portion 442 located at the axial end of the ball frame 441 is slidably connected to the first transmission sleeve 432, the ball frame 441 is cylindrical and is sleeved on the periphery of the screw 410, a plurality of through holes 443 regularly arranged are formed in the frame wall of the ball frame 441, the through holes 443 allow the balls 444 to pass through, as shown in fig. 10, when the ball frame is in transmission connection, the balls 444 can pass through the through holes 443 to be matched with the thread grooves 412 in the screw 410, the balls 444 are driven by the ball frame 441 to spirally roll around the screw 410, and the screw 410 is driven to axially move by the rolling of the balls 444.
As shown in fig. 7, the screw 410 of the present embodiment has a non-threaded guide plane 411, the guide plane 411 extends along the axial direction of the screw, and the glue gun 100 includes a guide sleeve engaged with the screw 410, wherein the guide sleeve has a hole adapted to the cross section of the screw 410, thereby guiding the screw 410 to move linearly along the axial direction thereof. The screw 410 penetrates through the guide sleeve, and the arrangement of the guide plane 411 limits that the screw 410 can only move forwards or backwards under the rotation drive of the ball, so that the extrusion of glue is realized.
The transmission mechanism 400 according to the embodiment of the present invention further includes a torque transmission portion disposed between the radial transmission unit 430 and the axial transmission unit 440 to ensure that the axial transmission unit 440 and the radial transmission unit 430 rotate in synchronization.
The torque transmission portion of the present embodiment includes a first torque transmission portion, which is provided between the first transmission sleeve 432 and the axial transmission member 440 to allow the two to rotate synchronously. Specifically, as shown in fig. 9, the torque transmission portion includes a plurality of first non-circular portions 451 provided on an inner circumference of the first transmission housing 432, and a plurality of second non-circular portions 452 provided on an outer circumference of the sliding coupling portion 442 of the ball cage 441, wherein the second non-circular portions 452 are engaged with the first non-circular portions 451.
Referring to fig. 8-9, in the present embodiment, the first non-circular portion 451 is a plane disposed on the inner circumference of the first transmission sleeve 432, the second non-circular portion 452 is a plane or a straight edge disposed on the outer circumference of the sliding connection portion 442, two first non-circular portions 451 and two second non-circular portions 452 are respectively disposed, the first non-circular portion 451 is suitable for being inserted into and sleeved on the outer circumference of the second non-circular portion 452, and the first non-circular portion 451 and the second non-circular portion 452 are disposed to limit the rotation of the ball frame 441 relative to the first transmission sleeve 432, thereby ensuring that the two are always rotated synchronously, and also avoiding the slipping of the two caused by the relative rotation of the radial transmission unit 430 relative to the ball frame 441, further ensuring that the lead screw always moves smoothly, and making the gluing operation more stable and uniform.
As shown in fig. 8 to 9, the radial transmission unit 430 according to the embodiment of the present invention further includes a second transmission sleeve 433, wherein the second transmission sleeve 433 is sleeved on the cylindrical outer circumference of the ball frame 441. Referring to fig. 10, the second driving sleeve 433 is provided at an inner peripheral wall thereof with a stopping groove 434 for allowing the balls 444 to enter, the balls 444 are embedded in the ball holder 441 during normal operation, and the balls 444 can roll around the screw groove 412 on the surface of the screw 410. Referring to fig. 11, when the ball holder 441 moves in its axial direction, the balls 444 are pushed by the ball holder 441 into the stay grooves 434 of the second driving sleeve 433. At this time, since the balls 444 are disengaged from the screw shaft 410 and the ball cage 441, the screw shaft 410 is freely movable in the axial direction with respect to the ball cage 441.
The torque transmission part in this embodiment further includes a second torque transmission part disposed between the second transmission sleeve 433 and the axial transmission member 440 for synchronously rotating the second transmission sleeve 433 and the axial transmission member 440, wherein the second torque transmission part includes a rotation stop pin 445, a mounting hole 4331 disposed on the second transmission sleeve 433, and a pin groove 4411 disposed on the ball frame 441, and the pin groove 4411 extends in the axial direction of the ball frame 441.
Specifically, referring to fig. 8, a pin groove 4411 extending in the axial direction thereof is further provided on the surface of the ball frame 441, a mounting hole 4331 is provided on the surface of the second driving sleeve 433, a rotation stopping pin 445 is mounted in the mounting hole 4331, and the rotation stopping pin 445 is slidably connected with the pin groove 4411, so that the relative rotation of the second driving sleeve 433 and the ball frame 441 is restricted and the ball frame 441 is allowed to move axially relative to the second driving sleeve 433 by providing the pin groove 4411 and the rotation stopping pin 445.
Referring to fig. 9, the outer periphery of the second driving sleeve 433 of the embodiment of the present invention is also provided with a third non-circular portion 453, wherein the third non-circular portion 453 is engaged with the first non-circular portion 451 of the inner periphery of the first driving sleeve 432, thereby restricting the relative rotation of the second driving sleeve 433 with respect to the first driving sleeve 432 and achieving the synchronous rotation of the two. Therefore, the reliability of transmission is ensured, and the smooth movement and output of the screw rod are further ensured.
Of course, as an alternative embodiment, the first non-circular portion 451, the second non-circular portion 452, and the third non-circular portion 453 may be provided with other non-planar matching structures, such as mutually matching protrusions and grooves, or mutually matching convex curved surfaces and concave curved surfaces.
Of course, as an alternative embodiment, the second driving sleeve 433 may be integrally formed with the first driving sleeve 432.
The electric glue gun 100 of the present invention further comprises a clutch mechanism, wherein the clutch mechanism is used for driving the ball frame 441 to move to a clutch position along the axial direction of the screw 410, when the ball frame 441 is located at the clutch position, the balls 444 are pushed into the staying groove 434 of the second transmission sleeve 433 and are separated from the screw 410, and the screw can move freely relative to the ball frame in the axial direction.
Referring to fig. 5 and 7, the clutch mechanism includes a trigger unit 610, a moving unit 620 and a connecting unit 630, wherein the trigger unit 610 is used for driving the moving unit 620 to move to the clutch position, the connecting unit 630 is connected with the ball frame 441, the moving unit 630 is sleeved on the second transmission sleeve 433, and the moving unit 620 drives the connecting unit 630 to drive the ball frame 441 to move axially.
Specifically, referring to fig. 8, the moving unit 620 is a cylindrical structure sleeved on the second transmission sleeve 433, a flange 621 protruding radially toward the moving unit 620 and facilitating the triggering of the triggering unit 610 is disposed on the moving unit 620, the connecting unit 630 is a connecting piece clamped at an axial end of the ball frame 441, and in this embodiment, the connecting unit 630 is a U-shaped inserting piece clamped at an axial end of the ball frame 441. As shown in fig. 5 and 7, the triggering unit 610 includes a triggering button 611 and a lever 612, wherein the middle of the lever 612 is pivotally connected to the housing 110, the button 611 is disposed at the lower end of the lever 612, and the upper end of the lever 612 is disposed at the axial rear end (i.e., the right side of fig. 7) of the flange 621.
Of course, in order to achieve the automatic return of the clutch mechanism in the embodiment of the present invention, there is further provided a spring 700 for driving the ball frame 441 to return to the original position, wherein the spring is disposed between the sliding connection portion 442 of the ball frame 441 and the axial end portion of the second driving sleeve 433, see fig. 8 and 10, for driving the ball frame 441 to return to the original position.
Referring to fig. 2 and 4, the electric glue gun according to the embodiment of the present invention further includes a battery pack 800, a switch module 910, and a control mechanism 920, wherein the battery pack 800 is used for providing power for the motor. The control mechanism 920 is used for controlling the operation of the motor 300, wherein the switch module 910 in the embodiment of the present invention is a knob switch, the switch module 910 is connected to the motor 300 through the control mechanism 920, and the knob can control the on/off of the motor through the control mechanism 920 and can also realize the adjustment of the output rotation speed. The speed regulation principle is the same as that of the existing electric tool and is not described herein.
The working process of the electric glue gun is as follows:
in normal operation, see fig. 10:
the motor 300 drives the rotation unit 421 to rotate and drives the first transmission sleeve 432 to rotate, and the first transmission sleeve 432 drives the ball frame 441 and the second transmission sleeve 433 to rotate synchronously with the first transmission sleeve 451 through the first non-circular portion 451 on the inner circumference of the first transmission sleeve 432;
at this time, the balls 444 are embedded in the through holes 443 of the ball frame 441 and the ball frame 441 drives the thread groove 412 around the periphery of the screw 410 to roll, so that the screw 410 is driven to translate along the axial direction of the screw, and the gluing operation is realized;
when the rubber cylinder is replaced, refer to the attached figure 11:
when the screw 410 moves forward to the limit position, the screw needs to be retracted and reset, and a new rubber cylinder is installed again, at this time, firstly, the motor is controlled by the knob to stop rotating, the user presses the button 611 again, the moving unit 620 is driven by the shift lever 612 to drive the ball frames 441 to move together to the axial front end through the connecting unit 630, and at this time, the balls 444 are pushed into the staying groove 434 of the second transmission sleeve 433 by the action of the ball frames 441 and are separated from the thread groove 412 on the surface of the screw 410;
secondly, the user pulls the operating handle 500 to make the screw 410 move backwards;
then, the user releases the button 611, the lever 612 is reset by the spring, and the spring 700 applies force to the ball frame 441, so that the ball frame 441 moves to the initial position toward the rear end of the shaft, and the ball frame 441 drives the moving unit 620 to return to the initial position, thereby resetting the ball frame 441 and the clutch mechanism.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (16)
1. A power tool, comprising:
a housing;
the output mechanism is arranged at the front end of the shell;
the power mechanism is used for providing power for the output mechanism;
the drive mechanism, the transmission is connected power unit with output mechanism includes:
the screw rod extends along the front-back direction and is connected with the output mechanism;
the rotating unit is in transmission connection with the power mechanism and is driven by the power mechanism to rotate around the screw rod;
its characterized in that, drive mechanism still includes transmission coupling assembling, transmission coupling assembling includes:
a radial transmission unit driven to rotate by the rotation unit;
the axial transmission unit is respectively and rotationally connected with the radial transmission piece and the screw rod and drives the screw rod to move along the axial direction of the screw rod;
and the torque transmission part is arranged between the radial transmission part and the axial transmission part and is used for transmitting torque and enabling the axial transmission part and the radial transmission part to synchronously rotate.
2. The power tool of claim 1, wherein the radial transmission unit includes a first transmission sleeve, a radially outer side of the first transmission sleeve is provided with transmission teeth in transmission connection with the rotary unit, and the torque transmission portion includes a first torque transmission portion provided between the first transmission sleeve and the axial transmission member for synchronous rotation therebetween.
3. The power tool of claim 2, wherein the first torque transmitting portion includes a plurality of first non-circular portions disposed on an inner periphery of the first transmission sleeve and a plurality of second non-circular portions disposed on an outer periphery of the axial transmission member, the second non-circular portions cooperating with the first non-circular portions.
4. The electric tool according to claim 3, wherein the axial transmission unit comprises a ball frame and a ball, the ball frame is in transmission connection with the first transmission sleeve, the ball frame is sleeved on the periphery of the screw rod, and a through hole allowing the ball to pass through is formed in a frame wall of the ball frame.
5. The power tool according to claim 4, wherein the radial transmission unit further comprises a second transmission sleeve provided on an outer periphery of the ball holder, and a retention groove for allowing the ball to enter is provided on an inner peripheral wall of the second transmission sleeve.
6. The power tool of claim 5, wherein the torque transmitting portion further includes a second torque transmitting portion disposed between the second drive sleeve and the axial drive member for synchronous rotation therewith.
7. The power tool of claim 6, wherein the second torque transmitting portion includes a rotation stop pin, a mounting hole provided in the second drive sleeve, and a pin slot provided in the ball cage, the pin slot extending axially along the ball cage.
8. The power tool of claim 5, wherein the second drive sleeve is further provided with a third non-circular portion on the outer periphery thereof, the third non-circular portion cooperating with the first non-circular portion to restrict rotation of the second drive sleeve relative to the first drive sleeve.
9. The power tool of claim 8, wherein the first non-circular portion is a flat surface provided on an inner periphery of the first transmission sleeve, and the second non-circular portion is a flat surface provided on an outer periphery of the ball holder; the third non-circular part is a plane arranged on the periphery of the second transmission sleeve.
10. The electric tool according to any one of claims 2 to 9, wherein the rotating unit comprises a driving gear and a sleeve, the driving gear is coaxially arranged with the sleeve, the driving gear is in transmission connection with the power mechanism, and the sleeve is provided with a transmission hole suitable for inserting the transmission teeth.
11. The power tool of any one of claims 2-9, further comprising a clutch mechanism that moves the axial drive member to a clutch position, wherein the ball disengages the lead screw when the axial drive member is in the clutch position.
12. The power tool of claim 11, wherein the clutch mechanism includes a moving unit and a connecting unit, the connecting unit is connected to the ball frame, the moving unit is sleeved on the converting sleeve, and the moving unit drives the connecting unit to drive the ball frame to move axially.
13. The power tool of claim 12, wherein the clutch mechanism further comprises a trigger unit for driving the moving unit to move to the clutch position.
14. The power tool of claim 13, wherein the trigger unit is a lever or a fork pivotally connected to the housing; the connecting unit is an inserting piece clamped at the axial end part of the ball frame.
15. The power tool of any one of claims 1-9 and 12-14, wherein the output mechanism is a glue cartridge and the power tool is a glue gun.
16. The power tool of claim 15, further comprising an operating handle disposed at a rear end portion of the lead screw.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020107348730 | 2020-07-28 | ||
| CN202010734873 | 2020-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113996508A true CN113996508A (en) | 2022-02-01 |
Family
ID=79921271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110810883.2A Pending CN113996508A (en) | 2020-07-28 | 2021-07-19 | Electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113996508A (en) |
-
2021
- 2021-07-19 CN CN202110810883.2A patent/CN113996508A/en active Pending
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Applicant after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Applicant before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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