Portable folding wrench

Abstract

The utility model relates to the technical field of hardware tools, in particular to a portable folding wrench which comprises a wrench body, one end of the wrench body is rotationally connected to one end of an extending handle, a connecting block is fixed to one end of the extending handle, a positioning inserting block is inserted into the surface of the connecting block, one end of the positioning inserting block is inserted into the surface of the wrench body, and the other end of the positioning inserting block is connected with the connecting block. A folding groove is formed in the surface of the extending handle and used for containing the wrench body, and a buckling groove is formed in the other end of the extending handle. The portable folding wrench has the advantages that by designing the folding groove and the limiting shaft, the wrench body can rotate and be stored in the folding groove of the extending handle, the overall size of the wrench is greatly reduced, and the portable folding wrench is convenient to carry and store. And meanwhile, due to the arrangement of the rubber gasket, the stability and safety during storage are improved, and the problem that the wrench body is automatically unfolded due to the external force is solved.

Description

Technical Field

[0001] This utility model relates to the field of hardware tools, specifically a portable folding wrench. Background Technology

[0002] In daily life and industrial production, wrenches are a common tool widely used for installing and removing fasteners such as bolts and nuts. However, traditional wrenches are often bulky and inconvenient to carry, especially in situations requiring frequent movement or where space is limited, greatly restricting their use. To solve this problem, various folding wrenches have emerged on the market, which reduce their size and improve portability through their folding design.

[0003] However, existing folding wrenches still have some shortcomings in design and use. For example, some wrenches are prone to unfolding on their own after folding due to external force, making them inconvenient to carry or even damaged; others lack a stable fixing device after unfolding, making them prone to loosening during use, affecting work efficiency and safety. Therefore, it is particularly important to develop a folding wrench that is both easy to carry and maintains stability during use. Utility Model Content

[0004] The purpose of this invention is to provide a portable folding wrench to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable folding wrench, comprising a wrench body, one end of which is rotatably connected to one end of an extension handle, a connecting block fixed to one end of the extension handle, a positioning block inserted into the surface of the connecting block, one end of the positioning block being inserted into the surface of the wrench body, a folding groove being provided on the surface of the extension handle for storing the wrench body, and a snap-fit ​​groove being provided at the other end of the extension handle.

[0006] Preferably, a limiting shaft is fixed between the two parallel sidewalls of the folding groove, the limiting shaft passing through a shaft hole, and the shaft hole being formed on the surface of the wrench body.

[0007] Preferably, rubber pads are fixed on both parallel sidewalls of the folding groove. After the extension handle is retracted into the folding groove, the rubber pads are clamped between the extension handle and the folding groove and undergo elastic deformation.

[0008] Preferably, there are two connecting blocks, which are symmetrically distributed about the wrench body. The surface of the connecting blocks away from the wrench body has a mounting groove, and the surface of the mounting groove has a through hole. The positioning plug is inserted into the through hole, the height of the positioning plug is greater than the depth of the through hole, and one end of the positioning plug is inserted into the positioning socket, which is located on the surface of the wrench body.

[0009] Preferably, a traction piece is fixed to the other end of the positioning insert block. The traction piece is slidably connected in the installation groove. A notch is formed on the surface of the traction piece. The notch is a "C"-shaped groove. An elastic band is fixed to the surface of the notch. Two ends of the elastic band are respectively fixed to two parallel side walls of the installation groove.

[0010] Preferably, a pull ring is fixed to the surface of the traction piece.

[0011] Preferably, rubber retaining strips are fixed at four side edges of the installation groove. The rubber retaining strips are "L"-shaped strips for limiting the traction piece.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The portable folding wrench proposed by the present utility model, by designing a folding groove and a limiting shaft, enables the wrench body to rotate and be stored in the folding groove of the extension handle, greatly reducing the overall volume of the wrench, facilitating carrying and storage. At the same time, the setting of the rubber gasket increases the stability and safety during storage, avoiding the problem that the wrench body unfolds automatically due to external forces. A positioning insert block and a traction piece are provided on the connecting block of the extension handle. Through the cooperation of the pull ring and the elastic band, precise control and fixation of the unfolding angle of the wrench body are achieved. When the wrench body is unfolded and inserted into the positioning socket, the rubber retaining strip can prevent the positioning insert block from jolting in the positioning socket, thereby ensuring the stability and safety of the wrench during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a top view of the structure of the present utility model;

[0016] Figure 3 is Figure 2 a sectional view of the structure at A-A in

[0017] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0018] Figure 5 is a schematic structural diagram of the extension handle of the present utility model;

[0019] Figure 6 is a schematic diagram of the connection structure of the positioning insert block and the traction piece of the present utility model;

[0020] Figure 7 is a schematic structural diagram of the wrench body of the present utility model;

[0021] Figure 8 is a schematic diagram of the structure after the wrench body of the present utility model is folded inside the extension wrench.

[0022] In the diagram: 1. Wrench body; 2. Shaft hole; 3. Limiting shaft; 4. Folding groove; 5. Extension handle; 6. Buckle groove; 7. Rubber gasket; 8. Connecting block; 9. Mounting groove; 10. Through hole; 11. Positioning insert; 12. Positioning socket; 13. Traction piece; 14. Notch; 15. Elastic band; 16. Rubber stop strip; 17. Pull ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figures 1-8 This utility model provides a technical solution: a portable folding wrench, including a wrench body 1, one end of which is rotatably connected to one end of an extension handle 5. A limiting shaft 3 is fixed between two parallel sidewalls of a folding groove 4, and the limiting shaft 3 passes through a shaft hole 2, which is opened on the surface of the wrench body 1. Rubber pads 7 are fixed on both parallel sidewalls of the folding groove 4. After the extension handle 5 is retracted into the folding groove 4, the rubber pads 7 are clamped between the extension handle 5 and the folding groove 4 and undergo elastic deformation.

[0025] When the wrench is not in use, the wrench body 1 is rotated around the limiting shaft 3 to be stored in the folding groove 4. At this time, the rubber pad 7 is clamped between the wrench body 1 and the folding groove 4 to prevent the wrench body 1 from rotating at will. In this way, the wrench body 1 and the extension handle 5 are folded, which requires little storage space and is easy to carry.

[0026] One end of the extension handle 5 is fixed with a connecting block 8. A positioning plug 11 is inserted on the surface of the connecting block 8. One end of the positioning plug 11 is inserted on the surface of the wrench body 1. A folding groove 4 is formed on the surface of the extension handle 5 for storing the wrench body 1. A buckle groove 6 is formed at the other end of the extension handle 5; There are two connecting blocks 8, and the two connecting blocks 8 are symmetrically distributed with respect to the wrench body 1. An installation groove 9 is formed on the surface of the connecting block 8 away from the wrench body 1. A through hole 10 is formed on the surface of the installation groove 9. The positioning plug 11 is inserted into the through hole 10. The height of the positioning plug 11 is greater than the depth of the through hole 10. One end of the positioning plug 11 is inserted into a positioning socket 12, and the positioning socket 12 is formed on the surface of the wrench body 1; The other end of the positioning plug 11 is fixed with a traction piece 13. The traction piece 13 is slidably connected in the installation groove 9. A notch 14 is formed on the surface of the traction piece 13. The notch 14 is a "C"-shaped groove. An elastic band 15 is fixed on the surface of the notch 14. Both ends of the elastic band 15 are respectively fixed on two parallel side walls of the installation groove 9; A pull ring 17 is fixed on the surface of the traction piece 13; Rubber stoppers 16 are fixed at the four side edges of the installation groove 9. The rubber stoppers 16 are "L"-shaped strips for limiting the traction piece 13.

[0027] When the wrench body 1 needs to be used, two fingers respectively lift the two pull rings 17. The pull rings 17张拉对应的牵引片13带动定位插块11缩进对应的穿口10中,此时的弹力带15处于张拉形变状态,拨动延伸把手5以限位轴3为中心轴转动180度后松开拉环17,并下推拉环17,直到定位插块11的一端插入定位插口12中,此时扳手本体1被制动,并且橡胶挡条16挡在牵引片13的一侧,避免定位插块11在定位插口12中颠簸,手握延伸把手5使用时,延伸把手5充当扳手本体1的延伸力臂;扣槽6用于套设在螺栓的端部板体上,手握扳手本体1远离延伸把手5的一端转动延伸把手5,实现对螺栓旋拧,扳手本体1端部的卡槽用于抠在螺栓的螺母上,用于装卸螺母使用。

[0028] The detailed process of using a portable folding wrench is as follows:

[0029] When the wrench is in the unused state: Ensure that the wrench is in the folded state, that is, the wrench body 1 has been rotated and stored in the folding groove 4 of the extension handle 5. Observe whether the rubber gasket 7 is clamped between the wrench body 1 and the folding groove 4 to confirm that the wrench body 1 will not rotate randomly. Since the wrench is small in volume after folding, it is convenient to carry in a toolbox or pocket.

[0030] It should be noted that there is an unclear expression "张拉对应的牵引片13带动定位插块11缩进对应的穿口10中" in the original text. It may need to be further clarified for a more accurate translation.Unfolding the wrench - Ready for use: Use two fingers to lift each of the two pull rings 17. The pull rings 17, through the traction plate 13, pull the positioning block 11 out of the positioning socket 12 and retract into the corresponding through hole 10. During the lifting process, the elastic band 15 will be stretched to a deformed state, providing elasticity for subsequent reset. With the limiting shaft 3 as the central axis, rotate the wrench body 1 out of the folding groove 4 by approximately 180 degrees. After releasing the pull rings 17, due to the rebound effect of the elastic band 15, the traction plate 13 moves the positioning block 11 out of the through hole 10 until one end of the positioning block 11 is inserted into the positioning socket 12 on the surface of the wrench body 1, thus fixing the wrench body. Ensure that the rubber stop strip 16 is positioned on one side of the traction plate 13 to prevent the positioning block 11 from loosening or vibrating in the positioning socket 12. Place the slot 6 of the extension handle 5 onto the end plate of the bolt, hold the extension handle 5, and use the wrench body 1 to rotate the extension handle 5 to tighten the bolt. To install or remove a nut, engage the slot at the end of the wrench body 1 with the edge of the nut, and hold the other end of the extension handle 5 to rotate it. Apply appropriate force according to the size and tightness of the bolt or nut to ensure the effectiveness and safety of the operation.

[0031] Storage of the wrench - End of use: Lift both pull rings 17 again to pull the positioning block 11 out of the positioning socket 12. Using the limiting shaft 3 as the central axis, rotate the wrench body 1 and store it back into the folding groove 4 of the extension handle 5. Ensure the rubber gasket 7 is clamped between the wrench body 1 and the folding groove 4 to prevent the wrench body 1 from rotating freely. Organize the folded wrench and place it in a toolbox or pocket for next use.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable folding wrench, comprising a wrench body (1), characterized in that: One end of the wrench body (1) is rotatably connected to one end of the extension handle (5). A connecting block (8) is fixed to one end of the extension handle (5). A positioning plug (11) is inserted on the surface of the connecting block (8). One end of the positioning plug (11) is inserted on the surface of the wrench body (1). A folding groove (4) is formed on the surface of the extension handle (5) for accommodating the wrench body (1). A buckle groove (6) is formed at the other end of the extension handle (5).

2. A portable folding wrench according to claim 1, characterized in that: A limiting shaft (3) is fixed between two parallel side walls of the folding groove (4). The limiting shaft (3) passes through a shaft hole (2) formed on the surface of the wrench body (1).

3. A portable folding wrench according to claim 1, characterized in that: Rubber gaskets (7) are fixed on two parallel side walls of the folding groove (4). After the extension handle (5) is retracted into the folding groove (4), the rubber gaskets (7) are clamped between the extension handle (5) and the folding groove (4) and undergo elastic deformation.

4. A portable folding wrench according to claim 1, characterized in that: There are two connecting blocks (8). The two connecting blocks (8) are symmetrically distributed with respect to the wrench body (1). An installation groove (9) is formed on the surface of the connecting block (8) away from the wrench body (1). A through hole (10) is formed on the surface of the installation groove (9). The positioning plug (11) is inserted into the through hole (10). The height of the positioning plug (11) is greater than the depth of the through hole (10). One end of the positioning plug (11) is inserted into a positioning socket (12) formed on the surface of the wrench body (1).

5. A portable folding wrench according to claim 4, characterized in that: A traction piece (13) is fixed to the other end of the positioning plug (11). The traction piece (13) is slidably connected in the installation groove (9). A notch (14) is formed on the surface of the traction piece (13). The notch (14) is a "C"-shaped groove. An elastic band (15) is fixed on the surface of the notch (14). Two ends of the elastic band (15) are respectively fixed to two parallel side walls of the installation groove (9).

6. A portable folding wrench according to claim 5, characterized in that: A pull ring (17) is fixed on the surface of the traction piece (13).

7. A portable folding wrench according to claim 5, characterized in that: The installation Rubber retaining strips (16) are fixed at four side edges of the groove (9). The rubber retaining strips (16) are "L"-shaped strips, for limiting the traction piece (13).

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