TW202007877A - Multi-section universal tool - Google Patents

Abstract

A multi-section universal tool includes an assembling member, a connecting member, a work member and two elastic members. The assembling member has an assembling portion and a first accommodating groove. An inner wall of the first accommodating groove has a first recessed portion. The connecting member includes a second ball-joint and a second accommodating groove. The second ball-joint includes a second elastic abutting member which has a tendency to radially move outwardly. An inner wall of the second accommodating groove has a second recessed portion. The second ball-joint is inserted into the first accommodating groove and is movable relative to the first accommodating to be in a first position or a second position. The work member includes a third ball-joint and a work portion. The third ball-joint includes a third elastic abutting member which has a tendency to radially move outwardly. The third ball-joint is inserted into the second accommodating groove and is movable relative to the third accommodating to be in a first position or a second position. one of the two elastic members abuts against between the first accommodating groove and the second ball-joint, and the other abuts against between the second accommodating groove and the third ball-joint.

Description

Multi-section universal tool

The invention relates to a multi-joint universal tool.

Press, the universal joint is a hand tool that can be used for multi-angle rotation. It is generally used between the assembly of rotating tools (such as wrenches, pneumatic or electric tools, etc.) and locking elements (sleeve or screw lock, etc.) The conventional universal joint includes a ball head seat and a driving rod. A ball head is provided at one end of the driving rod. The ball head is slidably mounted on the ball head seat in a non-rotatable manner. The ball head seat is slidably set at a fixed position and a swing position. When the driving rod is located at the fixed position, the radial convex portion of the drive rod is caught by the ball head seat and cannot swing relatively. When pulling out to the swing position with respect to the ball head seat, the radial convex portion of the driving rod can swing relative to the ball head seat without interfering with the ball head seat, and the universal joint can be rotated at multiple angles to facilitate Operate in a small working environment. However, when some operating environments are too long and narrow (such as long and narrow curved holes), it cannot be assembled with the locking element only by the extension of the rotating tool and the universal joint, which will cause the operation process to become extremely Difficulties, existence and modification.

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

The main purpose of the present invention is to provide a multi-joint universal tool that can effectively extend into a narrow and long environment to smoothly assemble with the locking element.

In order to achieve the above object, the present invention provides a multi-joint universal tool, which includes a set of connectors, a connecting member, a working member and two elastic members. The set of connecting pieces has a set of connecting parts and a polygonal first accommodating groove, and an inner wall of the first accommodating groove is provided with a first concave portion. The connecting member includes a polygonal second ball head and a second accommodating groove, the second ball head is provided with a second elastic abutment member which normally abuts radially outwards, and the second accommodating groove is inside The wall is provided with a second concave portion, and the second ball head is inserted into the first accommodating groove and can slide relative to the first accommodating groove at a first position and a second position. The working piece includes a polygonal third ball head and a working part, the third ball head is provided with a third elastic abutment piece which normally abuts radially outwards, and the third ball head is inserted in the second The accommodating groove can slide relative to the second accommodating groove at a first position and a second position. One of the two elastic members springs between the first accommodating groove and the second ball head, and the other springs between the second accommodating groove and the third ball head, so as to normally The second ball head and the third ball head abut against the second position. Wherein, when the second ball head is in the first position, the second resilient member is resiliently against the first concave portion and the connecting member cannot swing about the second ball head as an axis relative to the assembly member; When an external force is applied to move the second ball head toward the second position, the second resilient member is disengaged from the first concave portion, and the second ball head is rebounded by the elastic member to move to the second position , The connecting member swings relative to the kit with the second ball head as the axis; wherein, when the third ball head is in the first position, the third resilient member springs against the second recess and the work The member cannot swing about the third ball head as the axis relative to the connecting assembly; when an external force is applied to move the third ball head toward the second position, the third resilient member is separated from the second recess, the The third ball head is rebounded by the elastic member to move to the second position, and the working member swings relative to the connecting member about the third ball head as an axis.

The following merely illustrates the possible implementation forms of the present invention with examples, but it is not intended to limit the scope of the invention to be protected, and will be described first.

Please refer to FIGS. 1 to 4, which show a preferred embodiment of the present invention. The multi-joint universal tool of the present invention includes a set of connectors 1, a connector 2, a working member 3, and two elastic members 41.

The connecting member 1 has a connecting portion 11 and a polygonal first accommodating groove 12, and an inner wall of the first accommodating groove 12 is provided with a first concave portion 13.

The connecting member 2 includes a polygonal second ball head 21 and a second accommodating groove 22. The second ball head 21 is provided with a second elastic abutment piece 23 that normally abuts radially outward. The second The inner wall of the accommodating groove 22 is provided with a second recess 24. The second ball head 21 is inserted into the first accommodating groove 12 and can slide relative to the first accommodating groove 12 at a first position and a second position position.

The working piece 3 includes a polygonal third ball head 31 and a working portion 32. The third ball head 31 is provided with a third elastic abutment piece 33 that normally abuts radially outward, and the third ball head 31 It is inserted into the second accommodating groove 22 and can slide relative to the second accommodating groove 22 in a first position and a second position. In this embodiment, the working part 32 is used for assembling with a fastener or a tool sleeve, and the assembling part 11 is used for assembling with a rotating tool. In this embodiment, the first accommodating groove 12 and the second accommodating groove 22 are hexagonal slots, the second ball head 21 and the third ball head 31 are hexagonal ball heads, and the working portion 32 is For the four-corner head, the assembly portion 11 is a polygonal slot corresponding to the rotating tool. In other embodiments, the above structure may also be a polygonal structure with other numbers.

One of the two elastic members 41 springs between the first accommodating groove 12 and the second ball head 21, and the other springs against the second accommodating groove 22 and the third ball head 31, Normally, the second ball head 21 and the third ball head 31 are pressed toward the second position. In this embodiment, the two elastic members 41 are gradually moved from the assembly member 1 toward the working member 3. And shrink against the end surfaces of the second ball head 21 and the third ball head 31 facing the assembly 1 respectively.

Wherein, when the second ball head 21 is in the first position, the second resilient member 23 springs against the first concave portion 13 and the connecting member 2 cannot take the second ball head 21 as the axis to face the group The connecting member 1 swings; when an external force is applied to move the second ball head 21 toward the second position, the second resilient member 23 is separated from the first concave portion 13 and the second ball head 21 is subjected to the elasticity The piece 41 springs to move to the second position, and the connecting piece 2 swings relative to the kit with the second ball head 21 as the axis. When the third ball head 31 is in the first position, the third resilient member 33 springs against the second concave portion 24 and the working member 3 cannot swing about the third ball head 31 as the axis relative to the connecting assembly When an external force is applied to move the third ball head 31 toward the second position, the third resilient member 33 is detached from the second recess 24, and the third ball head 31 is rebounded by the elastic member 41 Moving to the second position, the working member 3 swings relative to the connecting member 2 with the third ball head 31 as the axis, and the two elastic members 41 can prevent the second ball head 21 and the third ball head 31 It can be moved to the first position arbitrarily without the function of multi-angle rotation. Therefore, by moving the second ball head 21 and the third ball head 31 to the second position, the multi-joint universal tool can be extended and rotated at multiple angles for deep and narrow working environment to be locked Solid operation. It should be noted that, in other embodiments of the present invention, two or more connecting members 2 can be included to increase the bending length of the present invention, so as to extend into the working environment under different bending lengths.

Specifically, the first concave portion 13 is a first ring groove 131 provided on the inner wall of the first accommodating groove 12, and the second concave portion 24 is a ring provided on the second accommodating groove 22 In the second ring groove 241 of the inner wall, in other embodiments, the first concave portion 13 and the second concave portion 24 may also be perforated, and the second elastic resisting member 23 and the third elastic resisting member 33 can also be accommodated .

Furthermore, the inner walls of the first accommodating groove 12 and the second accommodating groove 22 are respectively provided with a plurality of axially extending locking protrusions 51, and the second ball head 21 and the third ball head 31 are respectively provided A plurality of arc-shaped segments 52, the arc-shaped segments 52 of the second ball head 21 respectively abut against the locking protrusions 51 of the first accommodating groove 12, and the arc-shaped segments of the third ball head 31 52 are respectively pressed against one of the locking protrusions 51 of the second accommodating groove 22. In this embodiment, the first accommodating groove 12 and the second accommodating groove 22 are respectively provided with a plurality of axially extending locking recesses 53. The locking protrusions 51 and the locking recesses 53 are along the first housing The grooves 12 or the second receiving grooves 22 are staggered in the circumferential direction. The first ring groove 131 and the second ring groove 241 extend from the latching protrusions 51 and the latching recesses 53. The second A corner 54 is formed between the two arcuate sections 52 adjacent to any of the ball head 21 and the third ball head 31, and each corner 54 abuts against a locking recess 53 to prevent the second ball head 21 and the third The three ball heads 31 rotate relative to the first accommodating groove 12 and the second accommodating groove 22.

When the connecting member 2 is in the first position, the end surface of the second accommodating groove 22 is axially opposed to the end surface of the first accommodating groove 12, when the connecting member 2 is in the second position, the The end surface of the second accommodating groove 22 does not axially abut the end surface of the first accommodating groove 12 to prevent the connecting member 2 from swinging relative to the assembly member 1.

The working piece 3 is additionally integrally provided with a radial flange 34 which is located between the working portion 32 and the third ball head 31. When the working piece 3 is in the first position, the diameter The lateral flange 34 abuts against the inner wall of the second accommodating groove 22 to prevent the working member 3 from swinging relative to the connecting member 2. When the working member 3 is in the second position, the radial flange 34 That is, it does not abut against the inner wall of the second accommodating groove 22. Preferably, the connecting member 2 is further provided with a stepped portion 25. When the connecting member 2 is in the first position, the stepped portion 25 abuts against the inner wall of the first accommodating groove 12, which can also prevent the connection The member 2 swings relative to the assembly 1.

Preferably, the inner walls of the first accommodating groove 12 and the second accommodating groove 22 are further provided with a detachable limiting member 42 when the second ball head 21 or the third ball head 31 moves to the In the second position, the stopper of the first accommodating groove 12 or the second accommodating groove 22 is clamped against the second ball head 21 or the third ball head 31, so that the second ball head 21 or The third ball head 31 cannot be detached.

Please further refer to FIGS. 5 and 6. Compared with the above embodiment, in another embodiment of the present invention, the assembly member 1A further includes an extension rod 14, and both ends of the extension rod 14 are respectively connected to the assembly portion 11A Between the first accommodating groove 12A for extending the working length of the multi-joint universal tool, the rest of the structure is the same as the above embodiment, so no more description will be given.

In summary, the multi-joint universal tool of the present invention can effectively extend into a narrow and long environment to be smoothly assembled with the locking element, and the second ball head and the third ball head pass the first recess, The structural cooperation between the second concave portion and the two elastic members can be quickly positioned at the first position or the second position without sliding relative to the arbitrarily.

1A‧‧‧Connector 2‧‧‧Connector 3‧‧‧Workpiece 11,11A‧‧‧Connector 12,12A‧‧‧First receiving slot 13‧‧‧First recess 14‧‧‧ Extension rod 131‧‧‧First ring groove 21‧‧‧Second ball head 22‧‧‧Second accommodating groove 23‧‧‧Second resilient piece 24‧‧‧Second recess 25‧‧‧Step 241‧‧‧Second ring groove 31‧‧‧ Third ball head 32‧‧‧Working part 33‧‧‧ Third elastic abutment 34‧‧‧Radial flange 41‧‧‧Elastic member 42‧‧‧‧ Stopper 51‧‧‧Convex 52‧‧‧Curved section 53‧‧‧Concave 54‧‧‧Angle

FIG. 1 is a perspective view of a preferred embodiment of the present invention. FIG. 2 is an exploded view of a preferred embodiment of the invention. 3 is a cross-sectional view of a preferred embodiment of the present invention. 4 is a cross-sectional view of the operation of a preferred embodiment of the present invention. 5 is a perspective view of another preferred embodiment of the present invention. 6 is a cross-sectional view of another preferred embodiment of the present invention.

1‧‧‧ Group connection

2‧‧‧Connector

3‧‧‧Workpiece

11‧‧‧Assembly Department

32‧‧‧Working Department

Claims (10)

A multi-joint universal tool, comprising: a set of connecting pieces with a set of connecting portions and a polygonal first accommodating groove, an inner wall of the first accommodating groove is provided with a first concave portion; a connecting piece, including A polygonal second ball head and a second accommodating groove, the second ball head is provided with a second elastic abutment member which normally abuts radially outward, and an inner wall of the second accommodating groove is provided with a first Two concave portions, the second ball head is inserted into the first accommodating groove and can slide relative to the first accommodating groove at a first position and a second position; a working piece including a polygonal third ball The head and a working part, the third ball head is provided with a third elastic abutting member which normally presses radially outwards, and the third ball head is inserted into the second accommodating groove and opposite to the second accommodating groove The groove slides in a first position and a second position; two elastic pieces, one springing between the first accommodating groove and the second ball head, the other springing against the second accommodating groove and Between the third ball head, the second ball head and the third ball head are normally pushed toward the second position; wherein, when the second ball head is at the first position, the second ball The resisting piece springs against the first concave portion and the connecting piece cannot swing relative to the assembly using the second ball head as the axis; when an external force is applied to move the second ball head toward the second position, the The second resilient member disengages from the first concave portion, the second ball head is resiliently moved by the elastic member to move to the second position, and the connecting member swings relative to the kit with the second ball head as the axis; Wherein, when the third ball head is located at the first position, the third resilient member is resilient to the second recess and the working member cannot swing about the third ball head as the axis relative to the connecting assembly; When the third ball head is moved toward the second position with an external force, the third resilient member is disengaged from the second recess, and the third ball head is rebounded by the elastic member to move to the second position, The working member swings relative to the connecting member with the third ball head as the axis. The multi-joint universal tool according to claim 1, wherein the first concave portion is a first ring groove provided on the inner wall of the first accommodating groove, and the second concave portion is a ring provided on the first The second ring groove of the inner wall of the two accommodating grooves. The multi-joint universal tool according to claim 2, wherein the inner walls of the first accommodating groove and the second accommodating groove are respectively provided with a plurality of axially extending locking protrusions, the second ball head and the third The ball head is respectively provided with a plurality of arc-shaped segments, the arc-shaped segments of the second ball-head respectively abut against one of the latching protrusions of the first accommodating groove, and the arc-shaped segments of the third ball-head are They respectively press against one of the locking protrusions of the second accommodating groove. The multi-section universal tool according to claim 3, wherein the first accommodating groove and the second accommodating groove are respectively provided with a plurality of axially extending locking recesses, the locking protrusions and the locking recesses are along The first accommodating groove or the second accommodating groove are circumferentially staggered, the first ring groove and the second ring groove extend from the latching protrusions and the latching recesses, and the second ball head A corner is formed between the two arcuate sections adjacent to any of the third ball heads, and each corner is pressed against a locking recess. The multi-joint universal tool according to claim 1, wherein the assembly member further includes an extension rod, and two ends of the extension rod are respectively connected between the assembly section and the first accommodating groove. The multi-joint universal tool according to claim 1, wherein when the connecting member is in the first position, the end surface of the second accommodating groove is axially opposed to the end surface of the first accommodating groove when the When the connecting member is in the second position, the end surface of the second accommodating groove does not axially abut the end surface of the first accommodating groove. The multi-joint universal tool according to claim 1, wherein the working piece is additionally provided with a radial flange, the radial flange is located between the working portion and the third ball head, when the working piece is located In the first position, the radial flange is against the inner wall of the second accommodating groove. When the working member is in the second position, the radial flange is not in contact with the second accommodating groove The inner wall is against the top. The multi-joint universal tool according to claim 1, wherein the inner walls of the first accommodating groove and the second accommodating groove are further provided with a detachable stopper, when the second ball head or the third When the ball head moves to the second position, the stopper of the first accommodating groove or the second accommodating groove is clamped against the second ball head or the third ball head, so that the second ball head or The third ball head cannot be disengaged. The multi-joint universal tool as described in claims 1 to 8, wherein the two elastic members are tapered from the assembly member toward the direction of the working member, and respectively bear against the second ball head and the third ball The head faces the end face of the assembly piece. The multi-joint universal tool according to any one of claims 1 to 8, wherein the first accommodating groove and the second accommodating groove are hexagonal slots, the second ball head and the third ball head It is a hexagonal ball head, the working part is a four-corner head, and the assembly part is a polygonal slot.

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