TWI673443B - Two-stage universal joint - Google Patents

Abstract

The invention relates to a two-stage universal tool, which includes a kit, a driving member and an elastic member. The kit defines an axial direction, and is provided with a set of connecting portions and a set of connecting portions. The sleeve portion has a receiving groove. The inner wall of the receiving groove is provided with a plurality of axially extending convex projections, one of which is a convex projection. A recess is provided. The driving member is provided with a polygonal ball head, the polygonal ball head is provided with a plurality of curved surface segments, the polygonal ball head is inserted in the receiving slot, and the driving member can slide in a first position relative to the kit. With a second position, the polygonal ball head is provided with an elastic abutting member, which normally abuts radially outward.

Description

Two-stage universal tool

The invention relates to a two-stage universal tool.

The universal tool is a hand tool that can be used for multi-angle rotation. The universal tool includes a ball head seat and a driving rod. One end of the driving rod is provided with a ball head, and the ball head is not slidably disposed on the ball head. Seat, the driving rod can be slid in a fixed position and a swinging position relative to the ball head seat. When the driving rod is located in the fixed position, the radial convex portion of the driving lever and the ball head seat are locked against each other. Relative swing, when the driving rod is pulled out to the swing position relative to the ball joint, the radial convex portion of the driving rod does not engage with the ball joint and can swing relative to the ball joint. The universal tool is Multi-angle rotation is available to facilitate operation in a narrow working environment.

However, the driving lever of the known universal tool cannot be effectively positioned at the fixed position or swing position to be adjusted, and the driving lever is easy to slide freely between the fixed position and the swing position, so the operator must stop at half of the use When the driving rod is adjusted to the desired position, the operation can be restarted, which is very inconvenient in use and has the disadvantages of urgent improvement.

Therefore, it is necessary to provide a novel and progressive two-stage universal tool to solve the above problems.

The main object of the present invention is to provide a two-stage universal tool, which includes a kit and a driving member, which can not only effectively position the driving member in a first position or a second position, but also have a space between the driving member and the kit. Sufficient structural strength to withstand high torque operation.

To achieve the above object, the present invention provides a two-stage universal tool, which includes a kit, a driving member, and an elastic member. The kit defines an axial direction, and is provided with a set of connecting portions and a set of connecting portions. The sleeve portion has a receiving groove. The inner wall of the receiving groove is provided with a plurality of axially extending convex projections, one of which is a convex projection. A recess is provided. The driving member is provided with a polygonal ball head, the polygonal ball head is provided with a plurality of curved surface segments, the polygonal ball head is inserted in the accommodation slot, and the curved surface segments are respectively pressed against a card. Convexly, the driving member can slide in a first position and a second position relative to the kit, and the polygonal ball head is provided with a resilient abutting member, which resiliently abuts radially outward. The elastic member is abutted between the bottom of the receiving groove and the polygonal ball head, so that the driving member has a tendency to move toward the second position. Wherein, when the driving member is located in the first position, the elastic member springs against the recess and the driving member cannot use the polygonal ball head as an axis to swing relative to the kit; When the driving member moves toward the second position, the elastic member is released from the recess, the driving member is moved by the elastic member to move to the second position, and the driving member is based on the polygonal ball head as an axis. And swing relative to the kit.

1‧‧‧ Kit

2‧‧‧Driver

3‧‧‧ elastic

11‧‧‧ axial

12‧‧‧ Socket

13‧‧‧Assembly Department

14‧‧‧ Receiving slot

15‧‧‧ Ka convex

16‧‧‧ recess

17‧‧‧ Card Concave

18‧‧‧ ring groove

19‧‧‧stop

161‧‧‧ sidewall

162‧‧‧ bevel

21‧‧‧Polygonal ball head

22‧‧‧ Rebound

23‧‧‧Work Department

24‧‧‧Radial flange

211‧‧‧arc segment

212‧‧‧Corner

213‧‧‧Rongcon

221‧‧‧Card

222‧‧‧Spring

1 and 2 are perspective views of a preferred embodiment of the present invention.

FIG. 3 is an exploded view of a preferred embodiment of the present invention.

4 to 6 are cross-sectional views of operations of a preferred embodiment of the present invention.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIGS. 1 to 6, which show a preferred embodiment of the present invention. The two-section universal tool of the present invention includes a kit 1, a driving member 2, and an elastic member 3.

The kit 1 defines an axial direction 11 and is provided with a set of connecting portions 12 and a set of connecting portions 13. The sleeve portion 12 has a receiving groove 14, and an inner wall of the receiving groove 14 is provided with a plurality of axial 11 extensions. One of the latching protrusions 15 is provided with a recessed portion 16, and the assembly portion 13 can be combined with a rotating tool.

The driving member 2 is provided with a polygonal ball head 21, the polygonal ball head 21 is provided with a plurality of curved surface segments 211, the polygonal ball head 21 is inserted in the accommodation slot 14 and the curved surface segments 211 are Abutting against each of the latching protrusions 15, the driving member 2 can be slid in a first position and a second position relative to the kit 1. The polygonal ball head 21 is provided with a resilient member 22, and the resilient member 22 is normal. The ground springs outward radially. In this embodiment, the polygonal ball head 21 and the accommodation groove 14 are hexagonal, and in other embodiments, they may be polygonal with other angles.

The elastic member 3 is abutted between the bottom of the receiving groove 14 and the polygonal ball head 21, so that the driving member 2 has a tendency to move toward the second position.

Wherein, when the driving member 2 is located in the first position, the elastic member 22 springs against the recess 16 and the driving member 2 cannot swing relative to the kit 1 with the polygon ball head 21 as an axis. The driving member 2 is in line with the kit 1 and the elastic member 22 springs against the recessed portion 16. The driving member 2 cannot be arbitrarily moved to the second position. When the driving member 2 is moved toward the outside with an external force When the second position is moved, the elastic member 22 is detached from the recess 16, the driving member 2 is moved by the elastic member 3 to move to the second position, and the driving member 2 is the polygonal ball head. 21 is a shaft and swings relative to the kit 1, and the kit 1 and the driving member 2 can perform multi-angle rotation. If the driving member 2 is to be moved to the first position again, only an external force is needed to overcome the elastic force of the elastic member 3, and the driving member 2 can be returned to the first position. Therefore, the driving member 2 can be quickly and efficiently positioned in the first position or the second position and will not arbitrarily slide relative to the kit 1 It can improve the convenience in use. In this embodiment, the elastic member 3 is gradually tapered from the assembly portion 13 toward the receiving groove 14, and abuts against an end surface of the polygonal ball head 21 facing the assembly portion 13.

The receiving groove 14 is further provided with a plurality of locking recesses 17 extending in the axial direction 11. The locking protrusions 15 and the locking recesses 17 are staggered along the circumferential direction of the receiving groove 14, and any of the polygonal ball heads 21 is adjacent to each other. A corner portion 212 is formed between the two curved surface segments 211, and each corner portion 212 abuts against a latching recess 17 to prevent the polygonal ball head 21 from rotating relative to the socket portion 12 along the axial direction 11. In this embodiment, each of the latching protrusions 15 is an arc-shaped convex surface, and each of the latching protrusions 15 is gradually thinned along both sides of the circumferential direction of the kit 1 so that when the polygonal ball head 21 is located in the second position, the driving member 2 It is easier to swing the polygonal ball head 21 relative to the kit 1 as an axis.

The two side walls 161 of the recessed portion 16 extend along the radial direction of the kit 1 along the axial direction 11 to prevent the elastic member 22 from arbitrarily leaving the recessed portion 16. The recessed portion 16 is provided with a tapered inclined surface 162 along both sides of the circumferential direction of the kit 1, and each of the inclined surfaces 162 extends to the latching recess 17. In addition, the ratio of the axial 11 length of the recessed portion 16 to the groove depth of the accommodating groove 14 is 1: 7 to 1.5: 7. In this embodiment, the axial 11 length of the recessed portion 16 and the accommodating groove 14 The ratio of the groove depth is 1.3: 7, so that the recessed portion 16 and the resilient member 22 have a stronger latching ability.

The resilient member 22 includes a clamping member 221 and a spring 222. The polygonal ball head 21 is provided with a receiving hole 213. The clamping member 221 is slidably disposed in the receiving hole 213 and the spring 222 is resiliently pressing against the receiving hole. Between the bottom of 213 and the clip 221, the clip 221 is limited to the receiving hole 213 and normally faces outwards. In this embodiment, the clip 221 is a bead to avoid the clip 221 and The recessed portion 16 is stuck and cannot be separated from the recessed portion 16.

The driving member 2 is additionally provided with a working portion 23 and a radial flange 24. The radial flange 24 is provided between the working portion 23 and the polygonal ball head 21. The working portion 23 is provided with a lock. The firmware or a tool sleeve is connected. When the driving member 2 is located in the first position, the radial flange 24 abuts against the inner wall of the receiving groove 14. When the driving member 2 is located in the second In the position, the radial flange 24 does not abut against the inner wall of the receiving groove 14.

Preferably, a ring groove 18 is provided on the inner wall of the accommodating groove 14 away from one end of the assembling portion 13. The ring groove 18 detachably houses a stopper 19. When the driving member 2 moves to In the second position, the stopper 19 is locked against the polygonal ball head 21 so that the polygonal ball head 21 cannot be disengaged from the accommodating slot 14. In this embodiment, the stopper 19 is removable. The C-shaped retaining ring of the ring groove 18 is convenient for disassembly.

In summary, according to the two-stage universal tool of the present invention, with the structural cooperation of the elastic member, the recessed portion and the resilient member, the driving member can be efficiently and quickly positioned in the first position or the second position without Sliding arbitrarily with the kit can improve the convenience of use.

Claims (9)

A two-stage universal tool includes: a kit defining an axial direction, a set of joints and a set of joints, the sleeve has a receiving groove, and the inner wall of the receiving groove is provided with a plurality of shafts A convex extending toward one of the locking projections, one of which is provided with a concave portion, and the concave portion extends along the radial direction of the kit along the two side walls of the axial direction; a driving member is provided with a polygonal ball head, which is A plurality of arc-shaped segments are provided, the polygonal ball head is inserted into the accommodating groove, and the arc-shaped segments are respectively pressed against a locking protrusion, and the driving member can slide relative to the kit at a first position and In a second position, the polygonal ball head is provided with an elastic urging member which normally urges radially outwards; an elastic member is elastically arranged at the bottom of the accommodating groove and the polygonal ball head So that the driving member has a tendency to move toward the second position; wherein, when the driving member is in the first position, the resilient member is resilient against the concave portion and the driving member cannot be in the polygonal shape The ball head swings relative to the kit as an axis; when the drive member is moved toward the second position with an external force, the I.e. abutment member from the recessed portion, i.e., the driving member of the second elastic member of the elastic contact position moved to, i.e. to the driving element of the polygonal ball head swings relative to the axis kit. The two-stage universal tool according to claim 1, wherein the accommodating groove is further provided with a plurality of axially extending locking recesses, the locking protrusions and the locking recesses are staggered along the circumferential direction of the receiving groove A corner is formed between any two adjacent arcuate surface segments of the polygonal ball head, and each corner abuts against a locking recess. The two-stage universal tool according to claim 2, wherein the concave portion is provided with a tapered inclined surface along two sides of the circumferential direction of the kit, and each of the inclined surfaces extends to a locking recess. The two-stage universal tool according to claim 1, wherein each of the card protrusions is an arc convex surface, and each of the card protrusions becomes thinner along the circumferential sides of the kit. The two-stage universal tool according to claim 1, wherein the resilient member includes a clamping member and a spring, the polygonal ball head is provided with a receiving hole, the clamping member is slidably disposed in the receiving hole and the spring It snaps between the bottom of the receiving hole and the clamping member, so that the clamping member is limited to the receiving hole and normally pushes outwards. The two-stage universal tool according to claim 1, wherein the driving member is further integrally provided with a working part and a radial flange, the radial flange is provided between the working part and the polygonal ball head, When the driving part is in the first position, the radial flange is against the inner wall of the accommodating groove, and when the driving part is in the second position, the radial flange is not in contact with the accommodating The inner wall of the groove is against the top. The two-stage universal tool as described in claim 1, wherein the inner wall of the accommodating groove is further provided with a ring groove at one end away from the assembly part, and the ring groove is detachably housed with a stopper, when When the driving member moves to the second position, the stopper is stuck against the polygonal ball head, so that the polygonal ball head cannot escape from the accommodating groove. The two-stage universal tool according to claim 7, wherein the stopper is a C-shaped buckle detachable in the ring groove. The two-stage universal tool according to any one of claims 1 to 8, wherein the ratio of the axial length of the recess to the groove depth of the accommodating groove is 1: 7 to 1.5: 7.