Double offset ring spanner convenient to adjust

Abstract

The utility model relates to a box spanner convenient to adjust, which comprises two spanner frames which are mutually buckled and connected, each spanner frame comprises a handle part, a plum blossom head part and an adjusting part, the plum blossom head part and the adjusting part are respectively arranged at the two ends of the handle part, the handle part is detachably connected with the plum blossom head part, and the two ends of a U-shaped buckling frame are respectively and fixedly connected on the two side walls of a base. A containing through hole is formed between the U-shaped buckling frame and the base in a surrounding mode, the section of the containing through hole is the same as that of the handle part, and a limiting buckle is arranged on the U-shaped buckling frame. By arranging the two wrench frames which can be mutually buckled and fixed, the length of the whole box wrench can be adjusted in real time through the limiting holes, the length of the whole force arm is adjusted to increase the torque, and the box wrench can be suitable for people with different forces; the detachable plum blossom head portion can be matched with plum blossom wrenches of different models and sizes, matching can be achieved only by rotating and replacing threads, wrenches of multiple models are not needed, materials and cost are saved, and the overall carrying size is reduced.

Description

Technical Field

[0001] The present application relates to the field of wrench tools, and in particular to a conveniently adjustable plum wrench. Background Art

[0002] A wrench is a commonly used installation and disassembly tool. It is a hand tool that uses the principle of leverage to turn bolts, screws, nuts and other threaded fasteners with openings or holes. A wrench usually has an opening or hole for clamping a bolt or nut at one or both ends of the handle. When in use, an external force is applied to the handle along the direction of thread rotation to turn the bolt or nut. There are basically two types of wrenches: fixed wrenches and movable wrenches. The former refers to a wrench with a fixed number written on it, and the latter is an adjustable wrench.

[0003] At present, when the existing wrenches encounter screws of different sizes, the staff needs to directly replace the wrench or replace the sleeve at one end of the wrench, which is time-consuming and has low work efficiency; or when the screw cannot be tightened even though the size is appropriate, it is necessary to replace a larger and longer wrench to increase the torque. However, the above requires multiple wrenches of different sizes / lengths, which is inconvenient to carry as a whole and has high cost. Therefore, an adjustable plum wrench is proposed to address the above problems. Utility Model Content

[0004] Based on this, it is necessary to propose a conveniently adjustable plum wrench that can quickly replace wrench heads of different sizes in order to solve the problem of single function of traditional plum wrenches.

[0005] The present application provides a conveniently adjustable plum blossom wrench, comprising two wrench frames that are buckled and connected to each other, each of the wrench frames comprising a handle portion and a plum blossom head and an adjustment portion respectively arranged at both ends of the handle portion, the handle portion and the plum blossom head being detachably connected, and a plurality of limiting holes being arranged on the handle portion;

[0006] The adjusting part comprises a base and a U-shaped buckle frame, the two ends of the U-shaped buckle frame are respectively fixedly connected to the two side walls of the base, a receiving through hole is formed around the U-shaped buckle frame and the base, the cross section of the receiving through hole is the same as the cross section of the handle part, and a limit buckle is provided on the U-shaped buckle frame;

[0007] In two mutually buckled wrench frames, the handle of any one wrench frame is clamped in the accommodating through hole of the other wrench frame, and each of the limit buckles cooperates with the limit hole on the other wrench frame, so that the two wrench frames are locked to each other.

[0008] Preferably, a buckle groove is provided on the side wall of the U-shaped buckle frame, and one end of the limit buckle is rotatably engaged with the buckle groove.

[0009] Preferably, the limit buckle comprises a rotating head, a main support frame and a clamping column, the rotating head is rotationally matched with the buckle groove, and the clamping column is arranged on the inner side wall of the main support frame facing the accommodating through hole.

[0010] Preferably, the cross section of each of the clamping columns is the same as the cross section of each of the limiting holes.

[0011] Preferably, a rotating shaft is provided on the rotating head, and two ends of the rotating shaft respectively penetrate and are fixed on two side walls of the buckle groove, and the rotating head is rotatably matched with the rotating shaft, and the rotating head is located in the buckle groove.

[0012] Preferably, a connecting head is further provided at one end of the main support frame away from the rotating head, and the connecting head is snap-connected with the U-shaped buckle frame.

[0013] Preferably, the rotating head, the main support frame, the clamping column and the connecting head are an integrally formed structure.

[0014] Preferably, in each handle portion, an auxiliary positioning device is provided in the limiting hole close to the adjusting portion, and the auxiliary positioning device is used to engage with the limiting hole in another handle portion.

[0015] Preferably, the auxiliary positioning device includes a steel ball and a compression spring, the radius of the steel ball is larger than the aperture of the limiting hole, one end of the compression spring abuts against the limiting hole, and the other end of the compression spring abuts against the steel ball, so that the top of the steel ball can be squeezed and buckled into the limiting hole of the other handle part.

[0016] Preferably, a threaded column is provided at one end of the handle portion close to the plum blossom head, and the plum blossom head is provided with a corresponding threaded hole.

[0017] Technical advantages of this application:

[0018] 1. By setting up two wrench racks that can be buckled and fixed to each other, the length of the entire plum wrench can be adjusted in real time through the limit hole to adjust the overall force arm length to increase the torque, which can be suitable for people with different strengths;

[0019] 2. By setting a detachable plum head, it can adapt to plum wrenches of different models and sizes. It can be matched by simply rotating the thread and replacing it. There is no need for multiple models of wrenches, which saves materials and costs and reduces the overall carrying volume;

[0020] 3. By setting up an auxiliary positioning device, it is easier to adjust the position between the two wrench racks without affecting the clamping column. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a conveniently adjustable plum blossom wrench provided in one embodiment of the present application.

[0023] Figure 2 For this application Figure 1 Enlarged view of some structures in the examples.

[0024] Figure 3 This is a schematic structural diagram of a wrench rack provided in yet another embodiment of the present application.

[0025] Figure 4 A cross-sectional schematic diagram of an adjustment portion provided in one embodiment of the present application.

[0026] Figure 5 A schematic diagram of a limit buckle structure provided in one embodiment of the present application.

[0027] Figure 6 A schematic diagram of the structure of an auxiliary positioning device provided in one embodiment of the present application.

[0028] Figure markings: wrench frame 1, handle part 2, limiting hole 20, threaded column 21, plum blossom head 3, threaded hole 30, adjustment part 4, base 41, U-shaped buckle frame 42, buckle groove 420, accommodating through hole 40, limiting buckle 43; rotating head 431, main support frame 432, clamping column 433, rotating shaft 434, connecting head 435, auxiliary positioning device 5, steel ball 51, compression spring 52. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0030] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0031] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0033] The present application provides a conveniently adjustable plum wrench.

[0034] like Figures 1 to 6 As shown, in one embodiment of the present application

[0035] A conveniently adjustable plum blossom wrench comprises two wrench frames 1 which are interlocked and connected to each other. Each of the wrench frames 1 comprises a handle portion 2 and plum blossom heads 3 and an adjusting portion 4 respectively arranged at both ends of the handle portion 2. Each handle portion 2 is provided with a plurality of limiting holes 20, and the limiting holes 20 are arranged at equal intervals. The adjusting portion 4 adjusts the length of the entire plum blossom wrench through the limiting holes 20.

[0036] As an embodiment of the present invention, the adjusting portion 4 includes a base 41 and a U-shaped snap-fit ​​frame 42. The base 41 serves as the end portion connected to the handle portion 2 to limit the overall length of the handle portion 2 and prevent the two wrench frames 1 from separating when not in operation. The U-shaped snap-fit ​​frame 42 on the base 41 has the main function of snapping the main body of the handle portion 2 of the other wrench frame 1. Both wrench frames 1 are provided with U-shaped snap-fit ​​frames 42, so that they can be locked in pairs, so that the handle portion 2 of the wrench frame 1 can only be adjusted along its length direction, and the limiting holes 20 on each handle portion 2 determine its adjustment position and length.

[0037] Specifically, the two ends of the U-shaped snap-fit ​​frame 42 involved in the utility model are respectively fixedly connected to the two side walls of the base 41, and the U-shaped snap-fit ​​frame 42, the base 41 and the handle part 2 are an integrally formed structure to improve the overall structural strength. The middle part of the U-shaped snap-fit ​​frame 42 is used to snap-fit ​​the main body of the handle part 2 of another wrench rack 1, and the two side parts of the U-shaped snap-fit ​​frame 42 need to bear and transmit the entire torque of the entire plum wrench when installing or removing screws, so a higher strength is required.

[0038] like Figure 2 As shown: a receiving through hole 40 is formed between the U-shaped buckle frame 42 and the base 41, and the cross section of the receiving through hole 40 is the same as the cross section of the handle portion 2, and a limiting buckle 43 is provided on the U-shaped buckle frame 42; in two mutually buckled wrench frames 1, the handle portion 2 of any one wrench frame 1 is snapped into the receiving through hole 40 of the other wrench frame 1, and each of the limiting buckles 43 cooperates with the limiting holes 20 on the other wrench frame 1, so that the two wrench frames 1 are locked with each other.

[0039] By providing two wrench racks 1 that can be snap-fitted to each other, the length of the entire plum wrench can be adjusted in real time through the limiting hole 20 to adjust the overall lever arm length to increase the torque, which can be suitable for people with different strengths.

[0040] As an embodiment of the present invention, the handle 2 and the plum blossom head 3 are detachably connected, and a threaded column 21 is provided at one end of the handle 2 close to the plum blossom head 3, and the plum blossom head 3 is provided with a corresponding threaded hole 30. By providing a detachable plum blossom head 3, plum blossom wrenches of different models and sizes can be adapted, and they can be matched only by rotating the threads, without the need for multiple models of wrenches, saving materials and costs, and reducing the overall carrying volume;

[0041] A buckle slot 420 is provided on the side wall of the U-shaped buckle frame 42 , and one end of the limit buckle 43 is rotatably matched with the buckle slot 420 .

[0042] like Figure 4-5 As shown: Specifically, the utility model relates to a limit buckle 43, which includes a rotating head 431, a main support frame 432 and a clamping column 433. The rotating head 431 is rotatably matched with the clamping groove 420. The clamping column 433 is arranged on the inner side wall of the main support frame 432 facing the accommodating through hole 40, and the cross-section of each clamping column 433 is the same as the cross-section of each limit hole 20. The clamping column 433 and the limit hole 20 are clamped and locked to fix the main body of the handle part 2 of another wrench frame 1.

[0043] The rotating head 431 is provided with a rotating shaft 434 , and both ends of the rotating shaft 434 respectively penetrate and are fixed on the two side walls of the buckle slot 420 . The rotating head 431 is rotatably matched with the rotating shaft 434 , and the rotating head 431 is located in the buckle slot 420 .

[0044] As an embodiment of the present invention, a connector 435 is further provided at one end of the main support frame 432 away from the rotating head 431. The connector 435 is snap-fitted with the U-shaped buckle frame 42. The connector 435 has a slight elasticity. The connector 435 can further cooperate to fix the limit buckle 43 to prevent the limit buckle 43 from falling off during use.

[0045] As a further improvement of the present invention, the rotating head 431 , the main support frame 432 , the clamping column 433 and the connecting head 435 are an integrally formed structure, which enhances the strength of the entire limiting buckle 43 .

[0046] As an embodiment of the present utility model, in each handle portion 2 , an auxiliary positioning device 5 is provided in the limiting hole 20 close to the adjusting portion 4 , and the auxiliary positioning device 5 is used for engaging with the limiting hole 20 in another handle portion 2 .

[0047] like Figure 6 As shown: Specifically, the utility model relates to an auxiliary positioning device 5, which includes a steel ball 51 and a compression spring 52. The radius of the steel ball 51 is larger than the aperture of the limiting hole 20. One end of the compression spring 52 abuts against the limiting hole 20, and the other end of the compression spring 52 abuts against the steel ball 51, so that the top of the steel ball 51 can be squeezed and buckled into the limiting hole 20 of the other handle part 2. When the steel ball 51 of one wrench frame 1 is connected to the limiting hole 20 of the other wrench frame 1, it is located at the abutment surface between the two wrench frames 1, and the clamping column 433 is connected to the limiting hole 20 on the back of the other wrench frame 1. Therefore, the auxiliary positioning device 5 can better facilitate the adjustment of the position between the two wrench frames 1 without affecting the connection between the clamping column 433 and the limiting hole 20.

[0048] In summary: the utility model provides two wrench racks that can be buckled and fixed to each other, and the length of the entire plum blossom wrench can be adjusted in real time through the limit hole to adjust the overall force arm length to increase the torque. It can be suitable for people with different strengths. By providing a detachable plum blossom head, it can adapt to plum blossom wrenches of different models and sizes, which can be matched only by rotating the thread and replacing it. There is no need for multiple models of wrenches, saving materials and costs, and reducing the overall carrying volume. By providing an auxiliary positioning device, the position adjustment between the two wrench racks can be better facilitated without affecting the clamping column.

[0049] The technical features of the above embodiments may be combined arbitrarily, and the execution order of the method steps is not limited. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A conveniently adjustable plum wrench, characterized in that: The invention comprises two wrench frames (1) which are interlocked and connected to each other, each of the wrench frames (1) comprises a handle portion (2) and a plum blossom head portion (3) and an adjustment portion (4) respectively arranged at two ends of the handle portion (2), the handle portion (2) and the plum blossom head portion (3) are detachably connected, and a plurality of limiting holes (20) are arranged on the handle portion (2); The adjusting portion (4) comprises a base (41) and a U-shaped buckle frame (42), the two ends of the U-shaped buckle frame (42) are respectively fixedly connected to the two side walls of the base (41), a receiving through hole (40) is formed between the U-shaped buckle frame (42) and the base (41), the cross section of the receiving through hole (40) is the same as the cross section of the handle portion (2), and a limit buckle (43) is provided on the U-shaped buckle frame (42); In two wrench frames (1) that are interlocked and connected, the handle portion (2) of any one wrench frame (1) is snapped into the accommodating through hole (40) of the other wrench frame (1), and each of the limit buckles (43) cooperates with the limit hole (20) on the other wrench frame (1), so that the two wrench frames (1) are locked with each other.

2. The conveniently adjustable box spanner according to claim 1, characterized in that: A buckle groove (420) is provided on the side wall of the U-shaped buckle frame (42), and one end of the limit buckle (43) is rotatably matched with the buckle groove (420).

3. The conveniently adjustable box spanner according to claim 2, characterized in that: The limit buckle (43) comprises a rotating head (431), a main support frame (432) and a clamping column (433), wherein the rotating head (431) is rotatably matched with the clamping groove (420), and the clamping column (433) is arranged on the inner side wall of the main support frame (432) facing the accommodating through hole (40).

4. The conveniently adjustable box spanner according to claim 3, characterized in that: The cross section of each of the clamping columns (433) is the same as the cross section of each of the limiting holes (20).

5. The conveniently adjustable box spanner according to claim 4, characterized in that: The rotating head (431) is provided with a rotating shaft (434), and the two ends of the rotating shaft (434) respectively penetrate and are fixed on the two side walls of the buckle slot (420), the rotating head (431) and the rotating shaft (434) are rotatably matched, and the rotating head (431) is located in the buckle slot (420).

6. The conveniently adjustable box spanner according to claim 5, characterized in that: A connecting head (435) is also provided at one end of the main support frame (432) away from the rotating head (431), and the connecting head (435) is snap-connected with the U-shaped buckle frame (42).

7. The conveniently adjustable box spanner according to claim 6, characterized in that: The rotating head (431), the main support frame (432), the clamping column (433) and the connecting head (435) are an integrally formed structure.

8. The conveniently adjustable box spanner according to claim 1, characterized in that: In each handle portion (2), an auxiliary positioning device (5) is provided in a limiting hole (20) close to the adjustment portion (4), and the auxiliary positioning device (5) is used for engaging with a limiting hole (20) in another handle portion (2).

9. The conveniently adjustable box spanner according to claim 8, characterized in that: The auxiliary positioning device (5) comprises a steel ball (51) and a compression spring (52), the radius of the steel ball (51) is larger than the diameter of the limiting hole (20), one end of the compression spring (52) abuts against the limiting hole (20), and the other end of the compression spring (52) abuts against the steel ball (51), so that the top of the steel ball (51) can be squeezed and buckled into the limiting hole (20) of the other handle part (2).

10. The conveniently adjustable box spanner according to claim 1, characterized in that: A threaded column (21) is provided at one end of the handle portion (2) close to the plum blossom head portion (3), and a corresponding threaded hole (30) is provided on the plum blossom head portion (3).

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