Foldable wrench

Abstract

The utility model relates to the technical field of mechanical tools, in particular to a foldable wrench which comprises a wrench body, a rotating groove is formed in one end of the wrench body, according to the foldable wrench, a wrench head is rotated, and the wrench head can enter the rotating groove through rotation of a rotating block, so that the wrench head is folded; when the movable frame slides to the two ends of the wrench main body, the rotating handle rotates to drive the first threaded rod to rotate, the first threaded rod rotates to drive the movable plate to descend, and the movable plate descends to drive the bottom of the limiting rod to penetrate through the through hole and then enter the limiting hole, so that the movable frame is conveniently fixed outside the wrench main body; and a second threaded rod can be driven to rotate in a threaded groove by rotating a grip so that the length can be adjusted, the second threaded rod can be completely rotated to enter the threaded groove conveniently when the wrench is not used, and therefore storage is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical tools, and particularly to a foldable wrench. BACKGROUND

[0002] In daily life, whether it is home repair or professional construction, a wrench, as an indispensable tool, plays an important role. It is simple and practical in design, powerful and diverse, and is a powerful assistant for every craftsman, technician and even ordinary household users to solve the problem of fastening and disassembling bolts and nuts.

[0003] A foldable wrench is disclosed on the Chinese patent network with the publication number CN204431163U, which comprises a wrench head, a cylindrical handle, a folding core in the handle, and a pin shaft structure. The wrench head is used to clamp the threaded structure to be disassembled. There is a folding core in the cylindrical handle that can rotate perpendicular to the applied torque interface. When in use, the core is folded and clamped in the core placement slot. The position of the pin shaft structure can be moved in the pin shaft guide slot. The effective length of the applied force arm is changed by folding the core and moving the position of the pin shaft, and the torque is applied to turn the bolt, nut and other threaded connection structure. The utility model has the characteristics of simple operation, wide application range, strong universality, flexibility and convenience without other preparation work.

[0004] The head of the wrench in this scheme cannot be folded, and the head of the wrench is exposed externally, resulting in a relatively long overall length, which is not convenient to store in a tool box and affects the convenience of storing the wrench, thus having certain disadvantages.

[0005] Therefore, to solve the above problems, the present application provides a foldable wrench. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a foldable wrench to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a foldable wrench, comprising a wrench main body, one end of the wrench main body is provided with a rotating groove, one end of the rotating groove is installed with a rotating block, one end of the rotating block is installed with a wrench head, the outside of the wrench main body is installed with a movable frame, the outside of one side surface of the movable frame is symmetrically installed with limiting plates at both ends, the top of the movable frame is installed with a supporting frame, the inside of both side walls of the supporting frame is installed with a movable plate, and the bottom of the movable plate is installed with a limiting rod.

[0008] Preferably, the top and bottom of the rotating block are rotationally connected with the inside of the rotating groove, and the rotating block can drive the wrench head into the inside of the rotating groove when rotating.

[0009] Preferably, the inner side wall of the movable frame is in sliding connection with the outside of the wrench body, and when the movable frame slides to the left end of the wrench body, it can drive the two limiting plates to limit and fix the wrench head, and when the movable frame slides to the right end of the wrench body, it can release the limitation of the wrench head, and when the wrench head rotates into the inside of the rotating groove, it does not interfere with the movable frame and the two limiting plates.

[0010] Preferably, the top of the wrench body is symmetrically provided with a limiting hole at both ends, and the top of the movable frame is provided with a through hole, and the bottom of the limiting rod enters the inside of the limiting hole after passing through the through hole.

[0011] Preferably, the top of the support frame is provided with a first threaded rod, the top of the first threaded rod is provided with a rotating handle, one end of the bottom of the first threaded rod is in rotating connection with the top of the movable plate after penetrating through the support frame, and the outer ring surface of the first threaded rod is in threaded connection with the inside of the support frame.

[0012] Preferably, the outside of the wrench body is provided with a threaded groove at the end away from the rotating groove, the inside of the threaded groove is provided with a second threaded rod, and the outside of the second threaded rod is provided with a handle at the end away from the wrench body.

[0013] To sum up, the present application has the following beneficial technical effects:

[0014] The folding wrench can realize folding of the wrench head by rotating the wrench head through the rotating block to make the wrench head enter the inside of the rotating groove, and when the movable frame slides to both ends of the wrench body, the first threaded rod is driven to rotate through the rotating handle, the movable plate is driven to descend when the first threaded rod rotates, and the bottom of the limiting rod enters the inside of the limiting hole after passing through the through hole when the movable plate descends, so as to fix the movable frame on the outside of the wrench body, thereby realizing limiting and fixing of the wrench head. The second threaded rod can be rotated in the threaded groove to adjust the length by rotating the handle, so as to completely rotate the second threaded rod into the inside of the threaded groove when not in use, thereby facilitating storage. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic diagram of the embodiment of the present application;

[0016] Figure 2 is the second overall structure state schematic diagram of the embodiment of the present application;

[0017] Figure 3 is the partial structure layered schematic diagram of the embodiment of the present application;

[0018] Figure 4 is the movable frame partial structure schematic diagram of the embodiment of the present application;

[0019] Figure 5 is a hierarchical schematic diagram of the activity box part structure of the embodiment of the application.

[0020] Mark explanation: 1, wrench body; 101, rotating groove; 102, limiting hole; 103, threaded groove; 2, rotating block; 3, wrench head; 4, movable frame; 401, through hole; 5, limiting plate; 6, support frame; 7, movable plate; 8, limiting rod; 9, first threaded rod; 10, rotating handle; 11, second threaded rod; 12, handle. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying Figure 1 - Figure 5 The application is further described in detail.

[0022] A foldable wrench, referring to Figure 1 - Figure 5 , comprising a wrench body 1, one end of the wrench body 1 is provided with a rotating groove 101, one end of the rotating groove 101 is installed with a rotating block 2, one end of the rotating block 2 is installed with a wrench head 3, the outside of the wrench body 1 is installed with a movable frame 4, the outside of the movable frame 4 is installed with a limiting plate 5 at both ends of the side surface, the top of the movable frame 4 is installed with a support frame 6, the inside of the support frame 6 is installed with a movable plate 7 between the two side walls, and the bottom of the movable plate 7 is installed with a limiting rod 8.

[0023] Referring to Figure 1 - Figure 3 , the top and bottom of the rotating block 2 are rotatably connected with the inside of the rotating groove 101, and when the rotating block 2 rotates, it can drive the wrench head 3 to enter the inside of the rotating groove 101, so as to ensure that the rotating wrench head 3 can be rotated through the rotating block 2 to make the wrench head 3 enter the inside of the rotating groove 101.

[0024] Referring to Figure 1 - Figure 5 , the inside of the movable frame 4 is slidably connected with the outside of the wrench body 1, and when the movable frame 4 slides to the left end of the wrench body 1, it can drive the two limiting plates 5 to limit and fix the wrench head 3, and when the movable frame 4 slides to the right end of the wrench body 1, it can release the limitation of the wrench head 3, and when the wrench head 3 rotates into the inside of the rotating groove 101, it does not interfere with the movable frame 4 and the two limiting plates 5, so as to ensure that when the movable frame 4 slides to the left end of the wrench body 1, it can drive the two limiting plates 5 to limit and fix the wrench head 3, so that the wrench head 3 does not rotate when in use, and when the movable frame 4 slides to the right end of the wrench body 1, it can release the limitation of the wrench head 3, so as to facilitate the rotation of the wrench head 3 into the inside of the rotating groove 101.

[0025] Referring to Figure 1 - Figure 5, the top of the two ends of the wrench body 1 is symmetrically provided with a limiting hole 102, the top of the movable frame 4 is provided with a through hole 401, and the bottom of the limiting rod 8 enters the inside of the limiting hole 102 after penetrating through the through hole 401, so that the movable frame 4 is fixed outside the wrench body 1 by penetrating the bottom of the limiting rod 8 through the through hole 401 and entering the inside of the limiting hole 102, and the sliding of the movable frame 4 during use is avoided to cause the instability of the wrench head 3.

[0026] With reference to Figure 4 - Figure 5 , the top of the support frame 6 is provided with a first threaded rod 9, the top of the first threaded rod 9 is provided with a handle 10, one end of the bottom of the first threaded rod 9 is rotatably connected between the top of the movable plate 7 and the support frame 6 after penetrating through the support frame 6, and the outer ring surface of the first threaded rod 9 is threadedly connected with the inside of the support frame 6, the handle 10 is rotated to drive the first threaded rod 9 to rotate, the first threaded rod 9 drives the movable plate 7 to descend when rotating, and the sliding connection between the two ends of the outside of the movable plate 7 and the inner side wall of the support frame 6 increases the stability of the lifting of the movable plate 7, and the bottom of the limiting rod 8 enters the inside of the limiting hole 102 after penetrating through the through hole 401 when the movable plate 7 descends.

[0027] With reference to Figure 1 - Figure 3 , the end of the outside of the wrench body 1 away from the rotating groove 101 is provided with a threaded groove 103, the inside of the threaded groove 103 is provided with a second threaded rod 11, the end of the outside of the second threaded rod 11 away from the wrench body 1 is provided with a handle 12, the second threaded rod 11 is rotated in the inside of the threaded groove 103 by rotating the handle 12 to adjust the length, and the second threaded rod 11 is completely rotated into the inside of the threaded groove 103 when not in use, so that it is convenient to store.

[0028] The implementation principle of the folding wrench is as follows: in the use process of the wrench, first, rotating the wrench head 3 can make the wrench head 3 enter the inside of the rotating groove 101 through the rotating block 2, so as to fold the wrench head 3; when the movable frame 4 slides to the left end of the wrench main body 1, the two limiting plates 5 can limit and fix the wrench head 3, so that the wrench head 3 cannot rotate in use; when the movable frame 4 slides to the right end of the wrench main body 1, the limitation on the wrench head 3 is released, so that the wrench head 3 can be rotated into the inside of the rotating groove 101; when the movable frame 4 slides to the two ends of the wrench main body 1, rotating the handle 10 drives the first threaded rod 9 to rotate; when the first threaded rod 9 rotates, the movable plate 7 descends, and the outer two ends of the movable plate 7 are slidably connected with the inner side wall of the support frame 6, so that the stability of the movable plate 7 in ascending and descending is improved; when the movable plate 7 descends, the bottom of the limiting rod 8 enters the inside of the limiting hole 102 through the through hole 401, so that the movable frame 4 can be fixed outside the wrench main body 1, and the wrench head 3 is limited and fixed; rotating the handle 12 drives the second threaded rod 11 to rotate in the inside of the threaded groove 103 for length adjustment; when the second threaded rod 11 is not used, the second threaded rod 11 can be completely rotated into the inside of the threaded groove 103, so that the second threaded rod 11 can be conveniently stored; the outer screw of the first threaded rod 9 and the second threaded rod 11 is opened at an angle of 20 degrees, and the self-locking condition of the screw satisfies the following formula: self-locking condition = friction coefficient * tan (screw angle) >= 1.

[0029] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0030] Secondly: the utility model discloses the embodiment only relates to the structure involved in the embodiment of the present disclosure, and other structures can refer to the usual design, and under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0031] Finally: the preferred embodiments of the utility model are described above, and the utility model is not limited to the above, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0032] The above are the preferred embodiments of the present application, and are not used to limit the protection scope of the present application, so: any equivalent change made according to the structure, shape and principle of the present application should be included in the protection scope of the present application.

Claims

1. A foldable wrench comprising a wrench body (1), characterized in that: One end of the wrench body (1) is provided with a rotating groove (101), one end of the rotating groove (101) is provided with a rotating block (2), one end of the rotating block (2) is provided with a wrench head (3), the outside of the wrench body (1) is provided with a movable frame (4), the two ends of the outer side of the movable frame (4) are symmetrically provided with a limiting plate (5), the top of the movable frame (4) is provided with a supporting frame (6), the inside of the supporting frame (6) is provided with a movable plate (7), the bottom of the movable plate (7) is provided with a limiting rod (8).

2. The folding wrench of claim 1 wherein: The top and bottom of the rotating block (2) are rotatably connected with the inside of the rotating groove (101), and when the rotating block (2) rotates, the wrench head (3) can be driven into the inside of the rotating groove (101).

3. The folding wrench of claim 1 wherein: The inner side wall of the movable frame (4) is slidably connected with the outside of the wrench body (1), and when the movable frame (4) slides to the left end of the wrench body (1), the two limiting plates (5) can limit and fix the wrench head (3), when the movable frame (4) slides to the right end of the wrench body (1), the wrench head (3) is released, and when the wrench head (3) rotates into the inside of the rotating groove (101), it does not interfere with the movable frame (4) and the two limiting plates (5).

4. The folding wrench of claim 1 wherein: The top of the wrench body (1) is symmetrically provided with a limiting hole (102), the top of the movable frame (4) is provided with a through hole (401), and the bottom of the limiting rod (8) passes through the through hole (401) and enters the inside of the limiting hole (102).

5. The folding wrench of claim 1 wherein: The top of the supporting frame (6) is provided with a first threaded rod (9), the top of the first threaded rod (9) is provided with a rotating handle (10), one end of the bottom of the first threaded rod (9) penetrates the supporting frame (6) and is rotatably connected with the top of the movable plate (7), and the outer ring surface of the first threaded rod (9) is threadedly connected with the inside of the supporting frame (6).

6. The folding wrench of claim 1 wherein: The end of the wrench body (1) away from the rotating groove (101) is provided with a threaded groove (103), the inside of the threaded groove (103) is provided with a second threaded rod (11), and the end of the second threaded rod (11) away from the wrench body (1) is provided with a handle (12).

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