TWM492228U - Handle extension/contraction structure of hand tool - Google Patents

Description

Hand tool grip telescopic structure

The grip telescopic structure of the hand tool is mainly applied to the positioning technology of the length of the hand tool grip.

Press, traditional hand tools, such as hex wrench, open end wrench, adjustable wrench and socket wrench. In different workplaces, different tool wrenches are used according to the user's needs. As far as socket wrenches are concerned, conventional socket wrenches can be divided into fixed type and telescopic type.

The fixed type has a wrench body, a rotating portion is arranged on the edge of the wrench body, and a steering joint with a rectangular cross section is connected to the rotating portion for engaging the sleeves of various sizes, and when the force is applied to the wrench body When rotating, the wrench body can be operated back and forth to save power, but the conventional wrench body is of a fixed length, and if a long distance of force is required, there is a limit.

The telescopic type has a socket wrench body made of a bar and a handle made of a pipe. The wrench body is placed in the handle, and the wrench body can be moved along the axial direction of the handle according to the needs of the user. The adjustment of the length, but the bar and the pipe used, after the length is extended or shortened, the relative rotation motion between the bar and the pipe will not be firmly fixed, and there is a gap phenomenon. It is one of the problems and shortcomings that have yet to be solved.

Moreover, the telescopic positioning structure generally uses the spring force to position the steel ball in the bead groove, and its positioning effect is not good, and it is easy to lose the positioning effect due to the elastic fatigue of the spring, which is an existing problem that needs to be solved. And the second missing.

The creator is currently engaged in the manufacture and design of related products, accumulated many years of practical experience and experience, and has actively invested in the spirit of innovation and improvement in response to the existing problems and lack of traditionally used telescopic structures. Telescopic structure.

The technical means applied by the new problem solving and the effect of the prior art are as follows: the telescopic rod is sleeved inside the fixed tube, and a switch group is arranged outside the fixed tube, in order to prevent the telescopic rod from rotating inside the fixed tube, in particular The outer part of the telescopic rod and the inner part of the fixed pipe are hexagonal, and a plurality of positioning grooves spaced apart by a certain distance are arranged on the first plane of the telescopic rod, the switch group comprises a sliding sleeve, a clamping piece and a positioning a pushing member, an abutting member and an elastic member, a pushing block is protruded inwardly in the middle of the sliding sleeve, and the front portion of the pushing block is configured to receive a latching member and a positioning member and is provided with a pushing slope The ejector block is arranged to receive a top abutting member and an elastic member and is provided with an inner stepped edge. The latching member is provided with a pivoting hole at the center for pivoting the fixing tube, so that the latching member can be Swinging forward or backward, the latching member is provided with a positioning tooth portion corresponding to the positioning groove of the telescopic rod, and is used for positioning with the positioning groove, and the sliding member is forwardly displaced by the elastic member, so that the sliding kit is provided Push-up ramp limit card The method swings so that the positioning tooth portion can be positioned in the positioning groove, and when the sliding sleeve is displaced backward, the latching member is no longer restricted by the pushing inclined surface and can be extended with the extension or retraction of the telescopic rod Swing forward or backward; with an increase in efficiency, reaching its primary purpose.

The above-mentioned hand tool has a telescopic structure, wherein the shaft of the telescopic rod can be a polygon.

The above-mentioned hand tool has a telescopic structure, wherein: the hand tool can be a sleeve connecting rod.

The above-mentioned hand tool has a grip telescopic structure, wherein: the other end of the fixed tube is further provided with a gripper.

The above-mentioned hand tool has a telescopic structure, wherein the elastic member is a compression spring.

10‧‧‧ Telescopic rod

11‧‧‧ first plane

12‧‧‧ Positioning groove

13‧‧‧Hand tools

20‧‧‧Fixed tube

21‧‧‧hexagonal hole

22‧‧‧First annular groove

23‧‧‧Second annular groove

24‧‧‧ Third annular groove

25‧‧‧Perforation

26‧‧‧ grip

30‧‧‧ switch group

31‧‧‧Slip kit

311‧‧‧Pushing block

312‧‧‧Pushing the slope

313‧‧‧ inner edge

32‧‧‧ Cards

321‧‧‧ pivot hole

322‧‧‧ positioning tooth

33‧‧‧ Positioning parts

331‧‧‧ Bevel

34‧‧‧Parts

C1‧‧‧ first buckle

C2‧‧‧second buckle

C3‧‧‧ third buckle

S‧‧‧ elastic parts

The first picture: a partial cross-sectional view of the three-dimensional combination of the creation.

The second picture: a three-dimensional decomposition diagram of the creation.

The third picture: a schematic diagram of the cross-section of the creation.

The fourth picture is a schematic diagram of the state in which the telescopic rod of the present sliding sleeve is extended backwards.

Fig. 5 is a schematic view showing the state in which the positioning tooth portion of the latching member approaches the positioning groove when the creation is extended.

Fig. 6 is a schematic view showing the state in which the positioning of the positioning portion is located in the positioning groove after the extension of the sliding assembly.

Figure 7: This is a schematic diagram of the state in which the sliding sleeve is shifted backwards and the telescopic rod is shortened backward.

The eighth figure is a schematic diagram of the state in which the positioning tooth portion of the clamping member approaches the positioning groove when the creation is shortened.

The ninth picture: This is a schematic diagram of the state in which the rear slide kit is positioned to be positioned in the positioning groove.

In order to make it easier for those who are familiar with the art to understand the structure of the creation and the functional benefits that can be achieved, a specific embodiment will be listed, and the detailed description will be as follows: A hand tool telescopic structure, please refer to the first figure: a partial cross-sectional view of the three-dimensional combination of the present creation. And the second figure shows: a three-dimensional decomposition diagram of the creation. As shown in the third figure: a schematic diagram of the cross-section of the creation. The utility model mainly comprises: a telescopic rod 10, a fixed tube 20 and a switch group 30; wherein: the telescopic rod 10 has a non-circular cross section and can be hexagonal, and the first plane 11 of the telescopic rod 10 is A plurality of positioning grooves 12 are arranged at a certain distance according to actual requirements. The positioning grooves 12 are V-shaped and are used for positioning after telescopic adjustment of the length of the telescopic rod 10. The telescopic rod 10 is provided with a hand tool 13 at one end. The hand tool 13 can be a sleeve connecting rod, and the other end of the telescopic rod 10 is inserted into the fixed tube 20; the internal section of the fixing tube 20 is non-circular, and can be a hexagonal sleeve hole 21, One end of the fixed tube 20 is inserted into the telescopic rod 10 and is telescoped therein. The fixed tube 20 is provided with a first annular groove 21, a second annular groove 22 and a third annular groove 23 from the front to the rear. The first buckle ring C1, the second buckle ring C2, and the third buckle ring C3 are fastened to fix a switch group 30. The fixed pipe 20 corresponds to the positioning groove 12 of the telescopic rod 10 in the second annular groove 22. A through hole 24 is formed at the same time as the latching member 34 of the switch block 30 is exposed, and the other end of the fixed pipe 20 is further provided with a grip 2 The switch assembly 30 is composed of a sliding sleeve 31, a latching member 32, a positioning member 33, a top abutting member 34 and an elastic member S, wherein the sliding sleeve 31 is hollowed inside, and the sliding sleeve 31 is internally A push-up block 311 having a trapezoidal cross-section is formed inwardly of the middle portion, and a pusher block 32 and a positioning member 33 are disposed in front of the push block 311 and a push-up slope 312 is provided. The rear of the block 311 can accommodate a top abutting member 34 and an elastic member S and is provided with an inner edge 31. The latching member 32 has a water droplet shape, and a pivot hole 321 is defined in the center of the latching member 32. The second retaining ring C2 is disposed in the second annular groove 22 of the fixed tube 20. The latching member 32 can be swung forward or backward in the through hole 24, and the latching member 32 is provided with a positioning tooth portion 322 corresponding to the positioning groove 12 of the telescopic rod 10 as the positioning groove 12 The positioning member 33 has a hollow annular shape, and is disposed on the first buckle C1 fixed to the outside of the fixed tube 20, and the positioning member 33 is provided with a slope 331 corresponding to the latching member 32. The contact member 34 is in the shape of a hollow ring, and is disposed on the third buckle C3 fixed to the outside of the fixed tube 20; the elastic member S is a compression spring and The first end of the elastic member S is abutted against the top abutting member 34, and the other end of the elastic member S is abutted against the inner edge 313 of the sliding sleeve 31, and the elastic member is used. The elastic force of S shifts the sliding sleeve 31 forward, so that the pushing inclined surface 312 of the sliding sleeve 31 restricts the locking member 32 from swinging, so that the positioning tooth portion 322 can Located in the positioning groove 12, when the sliding sleeve 31 is displaced rearward, the latching member 32 is no longer restricted by the pushing inclined surface 312 and can be swung forward or backward with the extension or retraction of the telescopic rod 10 By.

The present invention, which is a combination of the above-mentioned various component structures, provides a gripping and telescopic structure of a hand tool, and in practical application: please refer to the fourth figure: the creation of the sliding assembly is shifted backward and backward. Schematic diagram of the state in which the rod is elongated forward. As shown in the fifth figure: the positioning tooth of the clamping member when the creation is extended Schematic diagram of the state of the near positioning groove. And the figure shown in the sixth figure: a schematic diagram of the state in which the sliding component is positioned to be positioned in the positioning groove by the frontward sliding sleeve. The user only needs to shift the sliding sleeve 31 of the switch block 30 backward, so that the latching member 32 is no longer restricted by the pushing inclined surface 312, and the telescopic rod 10 can be extended. When the telescopic rod 10 is extended, The latching member 32 swings forward. After the extension, the user only needs to release the sliding sleeve 31 of the switch block 30, and the sliding sleeve 31 is displaced forward by the elastic force of the elastic member S, so that the sliding kit 31 is pushed up. The ramp 312 limits the latch 32 from swinging, and after the length of the telescoping rod 10 is extended, the positioning tooth 322 can be positioned in the nearest positioning groove 12.

Please refer to the seventh figure: This is a schematic diagram of the state in which the rear sliding telescopic rod is shortened backwards. As shown in the eighth figure, the state in which the positioning tooth portion of the clamping member approaches the positioning groove is shortened when the creation is shortened. And the ninth figure is shown in the figure: the present invention shortens the state in which the rear sliding kit is reset to position the positioning tooth in the positioning groove. The user only needs to shift the sliding sleeve 31 of the switch block 30 backward, so that the latching member 32 is no longer restricted by the pushing inclined surface 312, and the telescopic rod 10 can be retracted. When the telescopic rod 10 is retracted, The latching member 32 swings forward, and after retracting, the user only needs to release the sliding sleeve 31 of the switch group 30, and the sliding sleeve 31 is displaced forward by the elastic force of the elastic member S, so that the sliding sleeve 31 is pushed. The top bevel surface 312 restricts the latching member 32 from swinging, and after shortening the length of the telescopic rod 10, the positioning tooth portion 322 can be positioned in the nearest positioning groove 12.

In summary, the author is providing a gripping and telescopic structure of a hand tool. After the actual creation and repeated operation tests by the creator, it is confirmed that the functional benefits expected by the creation can be achieved, and at the same time, It has not been seen before, and it has the industrial use value. It is true that it has met the practicality and progress of the new patent. Yiyi, in accordance with the provisions of the Patent Law, filed a new patent application with the bureau.

10‧‧‧ Telescopic rod

11‧‧‧ first plane

12‧‧‧ Positioning groove

13‧‧‧Hand tools

20‧‧‧Fixed tube

21‧‧‧hexagonal hole

22‧‧‧First annular groove

23‧‧‧Second annular groove

24‧‧‧ Third annular groove

25‧‧‧Perforation

26‧‧‧ grip

30‧‧‧ switch group

31‧‧‧Slip kit

311‧‧‧Pushing block

312‧‧‧Pushing the slope

313‧‧‧ inner edge

32‧‧‧ Cards

321‧‧‧ pivot hole

322‧‧‧ positioning tooth

33‧‧‧ Positioning parts

331‧‧‧ Bevel

34‧‧‧Parts

C1‧‧‧ first buckle

C2‧‧‧second buckle

C3‧‧‧ third buckle

S‧‧‧ elastic parts

Claims (5)

A gripping and contracting structure of a hand tool includes: a telescopic rod, a fixed tube, and a switch group; wherein: the telescopic rod is provided with a first plane, and the first plane is provided with a plurality of positioning grooves spaced apart by a certain distance The positioning groove is V-shaped, and is used for positioning after telescopic adjustment of the length of the telescopic rod. The telescopic rod is provided with a hand tool at one end, and the other end of the telescopic rod is inserted into the fixed tube; a sleeve having a shape similar to that of the outer portion of the telescopic rod, wherein one end of the fixing tube is inserted into the telescopic rod and telescoped therein, and one end of the fixing tube is sequentially provided with a first annular groove from front to back, a second annular groove and a third annular groove, wherein the first buckle, the second buckle and the third buckle are fastened to fix a switch group, wherein the fixed pipe corresponds to the telescopic rod in the second annular groove a through hole is formed in the positioning groove for exposing the latching member of the switch group; the switch group is composed of a sliding sleeve, a latching member, a positioning member, a top abutting member and an elastic member , the sliding kit is hollowed out inside, the sliding kit is inside A push-up block with a trapezoidal cross-section is trapped inwardly in the middle of the push-out portion, and a pusher block and a positioning member are arranged in front of the push-up block and a push-up inclined surface is provided, and the push-up block is rear-receivable A top abutting member and an elastic member are disposed and provided with an inner step edge; the latching member has a water droplet shape, and the central portion of the latching member is provided with a pivoting hole for the second buckle to be pivoted and fixed The second annular groove of the tube allows the latching member to swing forward or backward in the through hole, and the latching member is provided with a positioning tooth portion corresponding to the positioning groove of the telescopic rod as the positioning groove The positioning member is in the form of a hollow ring, and the first buckle fixed to the outside of the fixed tube can be worn. The positioning member is provided with a slope corresponding to the clamping member for contacting the clamping member; the abutting member has a hollow annular shape, and the third fastening member fixed to the outside of the fixing tube is just inserted The elastic member is disposed on the outer portion of the fixing tube, and one end of the elastic member is abutted against the top abutting member, and the other end of the elastic member is abutted against the inner step edge of the sliding sleeve, and the elastic member is utilized. The elastic force of the piece shifts the sliding sleeve forward, so that the sliding top of the sliding sleeve limits the clamping member from swinging, so that the positioning tooth can be positioned in the positioning groove, and when the sliding assembly is displaced backward, the clamping member It is no longer restricted by the slanting slope and can be swung forward or backward with the extension or retraction of the telescopic rod. The handle telescopic structure of the hand tool according to claim 1, wherein the sleeve of the telescopic rod and the sleeve hole of the fixed tube can be hexagonal or polygonal. The grip telescopic structure of the hand tool according to claim 1, wherein the hand tool can be a sleeve connecting rod. The grip telescopic structure of the hand tool according to claim 1, wherein the other end of the fixing tube is further provided with a gripper. The grip telescopic structure of the hand tool according to claim 1, wherein the elastic member is a compression spring.