A multi-specification nut tightening tool

Abstract

This utility model relates to the technical field of hardware tools, and proposes a multi-specification nut tightening tool, including a handle, a wrench head, and a locking sleeve. The handle includes a connecting rod and a gripping sleeve sleeved and fixed to the connecting rod. Two opposing connecting plates are fixed to the end of the gripping sleeve. The end of the connecting rod protrudes from the gripping sleeve and is located between the two connecting plates. The wrench head is rotatably connected to the protruding end of the connecting rod, and both ends of the wrench head have nut holes of different specifications. Correspondingly, strip-shaped holes are formed on the connecting rod and connecting plates. A pin that can slide along the strip-shaped holes passes through multiple strip-shaped holes. The locking sleeve fits the two connecting plates in the middle, and both ends of the pin pass through multiple strip-shaped holes and are fixed to the locking sleeve. The beneficial effect of this utility model is that by rotating the wrench head and locking it with the locking sleeve, the purpose of changing nut holes of different specifications can be achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of hardware tools, specifically to a multi-specification nut tightening tool. Background Technology

[0002] Currently, to increase the versatility of wrenches, they are often designed as adjustable wrenches. However, because adjustable wrenches have the function of adjusting the opening, their structural strength is unstable, they are prone to slipping and damaging the surface of the nut, and they require more space to operate. Therefore, in professional precision repair work, wrenches with fixed openings are still needed to ensure the strength of the torque. Their dimensions are more precise, they can move in confined spaces, and they are safer. However, because the opening of a fixed wrench cannot be adjusted, its versatility is relatively low. When there are many types of nuts, different wrenches need to be used for different types, which increases the operation time. Utility Model Content

[0003] This utility model proposes a multi-specification nut tightening tool, which achieves the purpose of changing nut holes of different specifications by rotating the wrench head and locking it with a locking sleeve.

[0004] Therefore, the technical solution adopted is as follows: A multi-specification nut tightening tool includes a handle, a wrench head, and a locking sleeve. The handle includes a connecting rod and a gripping sleeve sleeved and fixed to the connecting rod. Two opposing connecting plates are fixed to the end of the gripping sleeve. The end of the connecting rod protrudes from the gripping sleeve and is located between the two connecting plates. The wrench head is a strip-shaped structure and is rotatably connected to the protruding end of the connecting rod. Both ends of the wrench head have nut holes of different specifications. Correspondingly, the connecting rod and the connecting plates have strip-shaped holes arranged along the length of the connecting rod. A pin that can slide along the strip-shaped holes passes through the multiple strip-shaped holes. The locking sleeve fits the two connecting plates in the middle. The two ends of the pin pass through the multiple strip-shaped holes and are fixed to the locking sleeve. When the pin is located at one end of the strip-shaped hole near the gripping sleeve, the locking sleeve does not contact the wrench head. When the pin moves to the other end, the locking sleeve can accommodate and lock the wrench head parallel to the connecting rod.

[0005] A further technical solution is that the end of the connecting rod is provided with a connecting hole, and a second pin is inserted through the connecting hole. A wrench head can be detachably fixed at both ends of the second pin, and the fixing point is located in the middle of the wrench head.

[0006] A further technical solution is that each end of the connecting rod has a corresponding connecting plate, a locking sleeve, and a wrench head.

[0007] A further technical solution is that the gripping sleeve is made of plastic and has anti-slip texture on its outer side wall.

[0008] A further technical solution is that the end of the gripping sleeve has a fixed stop, and when the pin is located at one end of the strip hole near the gripping sleeve, the side wall of the locking sleeve abuts against the fixed stop.

[0009] The working principle and beneficial effects of this application are as follows: 1. By rotating the wrench head and fixing it with the sliding locking sleeve, the operation is simple and quick, which can achieve the purpose of changing different types of nut holes. It ensures that the wrench head is fixed, with large torque and high safety strength, and at the same time, it can meet the requirement of having multiple specifications of nut holes on one wrench, without the need to change wrenches frequently.

[0010] 2. At the same time, each connecting rod can be connected to two wrench heads at one end, for a total of four wrench heads, which further increases the capacity of nut holes of different specifications. At the beginning of the work, different wrench heads can be selected and fixed on the connecting plate according to the needs, so only one wrench is needed to meet the work requirements. Attached Figure Description

[0011] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the main view structure of this application; Figure 2 This is a side view of the structure of this application; Figure 3 This is a schematic diagram of the main structure of the connecting rod described in this application; Figure 4 This is a side view of the connecting rod described in this application; Figure 5 This is a schematic diagram of the structure of the gripping sleeve used in this application; Figure 6 This is a schematic diagram of the main structure of the locking sleeve described in this application; Figure 7 This is a side view of the locking sleeve described in this application; Figure 8 This is a schematic diagram of one embodiment of the wrench head described in this application.

[0013] In the diagram: 11. Connecting rod; 111. Strip hole; 112. Pin 1; 113. Connecting hole; 114. Pin 2; 12. Grip sleeve; 122. Anti-slip texture; 123. Fixed stop; 121. Connecting plate; 2. Wrench head; 21. Nut hole; 3. Locking sleeve. Detailed Implementation

[0014] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0015] like Figures 1-8 As shown, a multi-specification nut tightening tool includes a handle, a wrench head 2, and a locking sleeve 3. The handle includes a connecting rod 11 and a gripping sleeve 12 sleeved on and fixed to the connecting rod 11. Two opposing connecting plates 121 are fixed to the end of the gripping sleeve 12. The end of the connecting rod 11 protrudes from the gripping sleeve 12 and is located between the two connecting plates 121. The wrench head 2 has a strip-shaped structure and is rotatably connected to the protruding end of the connecting rod 11. Both ends of the wrench head 2 have nut holes 21 of different specifications. The connecting rod 11 and the connecting plates 121... The upper part is provided with a strip-shaped hole 111 along the length of the connecting rod 11. A pin 112 that can slide along the strip-shaped hole 111 is inserted inside the multiple strip-shaped holes 111. The locking sleeve 3 covers the two connecting plates 121 in the middle. The two ends of the pin 112 pass through multiple strip-shaped holes 111 and are fixed to the locking sleeve 3. When the pin 112 is located at one end of the strip-shaped hole 111 near the gripping sleeve 12, the locking sleeve 3 does not contact the wrench head 2. When the pin 112 moves to the other end, the locking sleeve 3 can accommodate and lock the wrench head 2 that is parallel to the connecting rod 11.

[0016] The complete tool set is equipped with several wrench heads 2 of different specifications. The end of the connecting rod 11 has a connecting hole 113, and a pin 114 passes through the connecting hole 113. Both ends of the pin 114 can be detachably fixed with a wrench head 2, and the fixing point is located in the middle of the wrench head 2. Both ends of the connecting rod 11 have corresponding connecting plates 121, locking sleeves 3 and wrench heads 2, so that two wrench heads 2 can be connected to one end of each connecting rod 11, for a total of four wrench heads 2, which further increases the capacity of the nut holes 21 of different specifications. The wrench heads 2 and the pin 114 can be detachably connected, for example, by locking with a nut. At the beginning of the work, four different wrench heads 2 are selected and fixed on the connecting plate 121 according to the work content, so that only one wrench is needed to complete the work.

[0017] When it is necessary to change the type of nut hole 21, slide the locking sleeve 3 towards the gripping sleeve 12, that is, slide the first pin 112 towards the end of the strip hole 111 near the gripping sleeve 12. At this time, the locking sleeve 3 is disengaged from the wrench head 2 and no longer in contact with it, so the wrench head 2 can rotate freely around the second pin 114. The positions of the nut holes 21 at both ends are swapped, that is, rotated 180°, so that different specifications of nut holes 21 face the working end. After the adjustment is completed, slide the locking sleeve 3 back to its previous position and put it on the wrench head 2 to fix it. The second pin 114 is located in the middle of the wrench head 2, thus ensuring that the lengths of both ends are consistent, which facilitates the locking position of the locking sleeve 3, that is, the length of the wrench head 2 inserted into the locking sleeve 3 is fixed, ensuring a stable connection. In actual use, there is no limit to the number of nut holes 21 on the wrench head 2, as long as each nut hole 21 can be used by rotating the wrench head 2.

[0018] like Figure 5 As shown, the gripping sleeve 12 is made of plastic, and its outer wall has anti-slip texture 122, which can prevent slipping and protect the internal connecting rod 11, and also facilitate the use of the operator. At the same time, the end of the gripping sleeve 12 has a fixed stop 123. When the pin 112 is located near the end of the gripping sleeve 12 in the slot 111, the side wall of the locking sleeve 3 abuts against the fixed stop 123. On the one hand, the fixed stop 123 can clearly distinguish the gripping sleeve 12 from the working end, making it convenient to grip when using and changing the wrench head 2. On the other hand, when the locking... After the locking sleeve 3 no longer restricts the wrench head 2, it can slide freely along the strip hole 111. When changing the wrench head 2, the gripping sleeve 12 is usually held vertically, so that the locking sleeve 3 falls naturally to one side of the gripping sleeve 12. If there is no fixed stop 123, the pin 112 will collide with the strip hole 111 and be easily damaged. In addition, the locking sleeve 3 will have a certain tendency to rotate around the pin 112. The fixed stop 123 will contact the locking sleeve 3 first, preventing the pin 112 from colliding with the strip hole 111, and keeping the locking sleeve 3 stable and not shaking.

[0019] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-spec nut driver, characterized by: The device includes a handle, a wrench head (2), and a locking sleeve (3). The handle includes a connecting rod (11) and a gripping sleeve (12) fitted onto and fixed to the connecting rod (11). Two opposing connecting plates (121) are fixed to the end of the gripping sleeve (12). The end of the connecting rod (11) protrudes from the gripping sleeve (12) and is located between the two connecting plates (121). The wrench head (2) is a strip-shaped structure and is rotatably connected to the protruding end of the connecting rod (11). Both ends of the wrench head (2) are provided with nut holes (21) of different specifications. Corresponding openings are provided on the connecting rod (11) and the connecting plate (121) along the connecting rod. (11) A strip-shaped hole (111) is set in the length direction. A pin (112) that can slide along the strip-shaped hole (111) is inserted inside the multiple strip-shaped holes (111). The locking sleeve (3) fits the two connecting plates (121) inside. The two ends of the pin (112) pass through multiple strip-shaped holes (111) and are fixed to the locking sleeve (3). When the pin (112) is located at one end of the strip-shaped hole (111) near the gripping sleeve (12), the locking sleeve (3) does not contact the wrench head (2). When the pin (112) moves to the other end, the locking sleeve (3) can accommodate and lock the wrench head (2) that is parallel to the connecting rod (11).

2. A multi-spec nut driver according to claim 1 wherein, The end of the connecting rod (11) is provided with a connecting hole (113), and a pin (114) is inserted inside the connecting hole (113). A wrench head (2) can be detached and fixed at both ends of the pin (114), and the fixing point is located in the middle of the wrench head (2).

3. A multi-spec nut driver according to claim 1 wherein, Both ends of the connecting rod (11) are respectively connected by a connecting plate (121), a locking sleeve (3) and a wrench head (2).

4. A multi-spec nut driver according to claim 1 wherein, The gripping sleeve (12) is made of plastic and has anti-slip texture (122) on its outer side wall.

5. A multi-specification nut tightening tool according to claim 1, characterized in that, The end of the gripping sleeve (12) has a fixed stop (123). When the pin (112) is located near the end of the gripping sleeve (12) of the strip hole (111), the side wall of the locking sleeve (3) abuts against the fixed stop (123).

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