TWI659805B - wrench - Google Patents

Abstract

The invention relates to a wrench, comprising: at least one connection mechanism; a plurality of base frame mechanisms, each of which is provided with a set of connection structures, and adjacent two of the plurality of base frame mechanisms are pivotally connected to one of the connection mechanisms; a plurality of engaging elements, Each of the connecting mechanisms and each of the base frame mechanisms are respectively pivoted and engaged with each other, and each of the assembling structures is engaged with at least one of the engaging elements.

Description

wrench

The invention relates to a wrench, and more particularly to a turning wrench.

When working in a narrow or curved space, it is often impossible to use a normal wrench to operate. Therefore, a special wrench with a transmission mechanism is required to make the assembly at one end drive the assembly at the other end to rotate to remove it. 2. Install one of the fastening pieces in a narrow or curved space.

However, most of these known wrenches are straight, have only a single transmission mechanism and cannot respond to turning at different angles, and there are many restrictions on their use. In addition, the assembly components of the wrench cannot or cannot be easily replaced, resulting in difficult maintenance and replacement of parts as required.

Therefore, it is necessary to provide a novel and progressive wrench to solve the above problems.

The main object of the present invention is to provide a wrench which can be turned and operated in multiple directions.

In order to achieve the above object, the present invention provides a wrench, including: at least one connecting mechanism; a plurality of base frame mechanisms, each pivot is provided with a set of connection structures, and adjacent two of the plurality of base frame mechanisms are pivotally connected therein A connecting mechanism; a plurality of engaging elements are respectively pivoted on each of the connecting mechanisms and each of the base frame mechanisms and are engaged with each other; each of the assembling structures is engaged with at least one of the engaging elements.

1‧‧‧ wrench

2‧‧‧Tools

3‧‧‧ sleeve

10‧‧‧ Connected institutions

20‧‧‧ scaffolding mechanism

21‧‧‧Assembly structure

22‧‧‧Side Frame

23‧‧‧ flat cut noodles

30‧‧‧ Engagement element

40‧‧‧ hinge mechanism

41,51‧‧‧ Pivot

42,52‧‧‧Fixed parts

50‧‧‧ Pivot

FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention.

FIG. 2 is an exploded view of a preferred embodiment of the present invention.

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

FIG. 4 is a top view of a preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of the use of a preferred embodiment of the present invention.

FIG. 6 is a top view of another 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 5, which show a preferred embodiment of the present invention. The wrench 1 of the present invention includes at least one connecting mechanism 10, a plurality of base frame mechanisms 20, and a plurality of engaging elements 30.

Each of the plurality of base frame mechanisms 20 is provided with a set of connecting structures 21, and adjacent two of the plurality of base frame mechanisms 20 are pivotally connected to one of the connecting mechanisms 10; the plurality of engaging elements 30 are respectively pivotally connected to each of the connecting mechanisms. 10 and each of the base frame mechanisms 20 are engaged in pairs, and each of the assembling structures 21 is engaged with at least one of the engaging elements 30. In this way, the wrench 1 can be turned and can be used to drive a tool 2 in a narrow or curved space to disassemble and install a fastener, which increases the convenience of operation.

The wrench 1 further includes a plurality of hinge mechanisms 40, which are hinged to the at least one connection mechanism 10 and the plurality of base frame mechanisms 20. Each of the hinge mechanisms 40 is pivotally connected to one of the engaging elements 30 and is pivotally arranged to engage with two of the adjacent two of the hinge mechanisms 40 and the engaging elements 30; at least one of the plurality of base frame mechanisms 20 is provided. There is at least one plane-cutting surface 23, and the at least one plane-cutting surface 23 can abut against the other of the plurality of base frame mechanisms 20, and can limit the bending angle between two adjacent base frame mechanisms 20. Preferably, adjacent two of the plurality of base frame mechanisms 20 are each provided with the at least one plane cut surface 23 so that each of the base frame mechanisms 20 can abut against a fixed angle when the plurality of engaging elements 30 rotate. The plurality of base frame mechanisms 20 may also be provided with a plurality of the plane cutting planes 23 to increase an angle that can be opposed to the other of the plurality of base frame mechanisms 20, as shown in FIG. 6. Each of the hinge mechanisms 40 includes a pivot shaft 41 that connects the connection mechanism 10 and the base frame mechanism 20 and pivotally connects the engaging element 30, and a fixing member 42 detachably coupled to the pivot shaft 41. In detail, the pivot 41 is a bolt, and the fixing member 42 is a nut that can be screwed with the bolt to facilitate assembly, maintenance, and replacement of components. The bolt and the nut can be selectively fastened to fix the phase. The angle of the connecting mechanism 10 and the base frame mechanism adjacent to each other. Preferably, the connecting mechanism 10 is pivotally provided with at least two engaging elements 30 to increase the turning angle of the wrench 1.

Further, the wrench 1 further includes a plurality of pivoting mechanisms 50, and the plurality of pivoting mechanisms 50 pivotally connect a part of the plurality of engaging elements 30 to each of the base frame mechanisms 20. Each of the pivot mechanisms 50 includes a pivot shaft 51 connected to the base frame mechanism 20 and pivotally connected to the engaging element 30, and a fixing member 52 detachably coupled to the pivot shaft 51; the pivot shaft 51 is a bolt, The fixing member 52 is a nut that can be screwed with the bolt, so as to facilitate assembly disassembly, maintenance and replacement of components. The plurality of base frame mechanisms 20 include a plurality of side frames 22, and the plurality of engaging elements 30 are disposed between the plurality of side frames 22. Wherein, the plurality of side frames 22 may be arranged opposite to each other or offset, or a single side may be pivotally connected to the plurality of engaging elements 30. The plurality of engagement elements 30 are preferably gears to provide sufficient structural strength; the plurality of engagement elements 30 can be replaced with gears of different sizes to cooperate with changing the magnitude of the force.

Each of the assembling structures 21 includes at least one group of concave portions or at least one group of convex portions. The grouping concave portion may be a groove or a through hole, the grouping convex portion may be a bump or a convex portion having a groove, and the shape of the grouping concave portion and the grouping convex portion may be, for example, but not limited to, a square. Or a hexagonal shape for assembling the fastening member or the tool 2; the assembling structure 21 may also be connected with a sleeve 3 before being sleeved with the fastening member or the tool 2. In this embodiment, the assembling structure 21 is disposed at the end of the base frame structure 20 and is a through hole on the same side. However, the two sides of the assembling structure 21 may also be the assembling recesses with different sizes. The grouping convex part or the grouping concave part and the grouping convex part respectively increase the selectivity for grouping; the grouping structure 21 may also be arranged between the two pivoting mechanisms 50.

Claims (7)

A wrench includes: at least one connecting mechanism; a plurality of base frame mechanisms, each of which is provided with a set of connecting structures, and adjacent two of the plurality of base frame mechanisms are pivotally connected to one of the connecting mechanisms; a plurality of engaging elements are respectively pivoted Each of the connecting mechanisms and each of the base frame mechanisms are engaged in pairs, and each of the assembly structures is engaged with at least one of the engaging elements; a plurality of articulation mechanisms are articulated to the at least one connection mechanism and the plurality of base frame mechanisms, each One of the engaging elements is pivotally connected to the hinge mechanism, and the two engaging elements of two adjacent hinge mechanisms are pivotally engaged with each other; wherein at least one of the plurality of base frame mechanisms is provided with at least one plane cut surface, The at least one plane-cutting plane may abut against the other of the plurality of base frame mechanisms. The wrench according to claim 1, wherein each of the hinge mechanisms includes a pivot shaft connecting the connection mechanism and the base frame mechanism and pivotally connecting the engaging element, and a fixing member detachably coupled to the pivot shaft. The wrench according to claim 1, wherein the connecting mechanism is pivotally provided with at least two of the engaging elements. The wrench according to claim 1, further comprising a plurality of pivoting mechanisms which pivotally connect a part of the plurality of engaging elements to each of the base mechanism. The wrench according to claim 4, wherein each of the pivot mechanisms includes a pivot shaft connected to the base mechanism and pivotally connected to the engaging element, and a fixing member detachably coupled to the pivot shaft. The wrench according to claim 1, wherein adjacent two of the plurality of base frame mechanisms are each provided with the at least one flat section. The wrench according to claim 6, wherein each of the assembling structures includes at least one set of recessed portions or at least one set of protruding portions, and each of the hinge mechanisms includes a connection mechanism and the base mechanism and pivotally connects the engaging element. A pivot, and a fixing member detachably combined with the pivot, the pivot is a bolt, and the fixing is a nut that can be screwed with the bolt; the connecting mechanism is pivotally provided with at least two of the rods The wrench further includes a plurality of pivoting mechanisms that pivotally connect a part of the plurality of engaging elements to each of the base frame mechanisms; each of the pivoting mechanisms includes a connection to the base frame mechanism and pivoting the rod The pivot of the connecting element and a fixing member detachably combined with the pivot, the pivot is a bolt, and the fixing is a nut that can be screwed with the bolt; the plurality of base frame mechanisms include a plurality of side frames The plurality of engaging elements are disposed between the plurality of side frames; the plurality of engaging elements are gears.