Fastener convenient to disassemble

Abstract

The fastener comprises a screw rod, a twisting block and an electric wrench head, the screw rod and the twisting block are connected with each other, the electric wrench head is suspended above the twisting block, a plurality of clamping grooves which are gradually reduced are formed in the upper end face of the twisting block, the electric wrench head can be connected with the twisting block / the clamping grooves in a sleeved mode, and at least two opposite clamping openings are formed in the middle of the twisting block. The multiple clamping grooves are gradually close to the center of the twisting block, and the distances between the multiple clamping grooves are sequentially increased. According to the electric wrench, the clamping grooves distributed at equal intervals are formed in the upper end face of the twisting block, so that electric wrench heads of different sizes can twist the fastener through the corresponding twisting block and the clamping grooves formed in the twisting block, and an operator can conveniently disassemble or assemble the fastener.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field, especially a fastener convenient to disassemble. BACKGROUND

[0002] Fastener is also called standard part in the market, it is a kind of mechanical element that two or more elements are fixed or bonded together mechanically, its characteristic is that variety and specification are numerous, performance and use are different, and the degree of standardization, serialization and generalization is extremely high.

[0003] There are many kinds of fasteners, and bolt and nut are the most commonly used fasteners, but the current bolt can only be disassembled in one way, and is not suitable for different bolt wrenches when disassembling, and is not convenient for quick disassembly. SUMMARY

[0004] This part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] To solve the problems mentioned above, the utility model provides the following technical scheme:

[0006] A kind of fastener convenient to disassemble includes, screw rod and twist block connected with each other, and electric wrench head suspended above twist block, the upper end surface of twist block is equipped with gradually narrowing multiple clamping grooves, electric wrench head can be connected with twist block / clamping groove, twist block middle part is equipped with at least two opposite clamping openings;Multiple clamping grooves gradually converge to the center of twist block, and the spacing between multiple clamping grooves expands in turn.

[0007] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0008] As a preferred scheme of the fastener convenient to disassemble of the utility model, wherein: the clamping groove includes first clamping groove and second clamping groove, the distance between the side wall adjacent to the twist block of the first clamping groove and the side wall of the twist block is the first spacing.

[0009] As a preferred scheme of the fastener convenient to disassemble of the utility model, wherein: the length of the first spacing is 2-3mm.

[0010] As a preferred scheme of the fastener convenient to disassemble of the utility model, wherein: the distance between the adjacent inner walls of the first clamping groove and the second clamping groove is the second spacing, and the first spacing is three fourths of the length of the second spacing.

[0011] As a preferred scheme of the detachable fastener, one side of the clamping opening corresponding to the center point of the twisting block is provided with a clamping block, and the clamping block is trapezoidal.

[0012] As a preferred scheme of the detachable fastener, the clamping blocks are opposite to each other, and the clamping blocks are provided with a plurality of clamping blocks and are arranged at equal intervals.

[0013] The detachable fastener has the advantages that the clamping slots are arranged at equal intervals on the upper end surface of the twisting block, different sizes of electric wrench heads can be twisted by the corresponding twisting blocks and the clamping slots arranged on the twisting blocks, and the fastener is convenient for an operator to disassemble or assemble. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0015] Figure 1 It is a perspective view of the whole embodiment.

[0016] Figure 2 It is a perspective view of the electric wrench head of the embodiment.

[0017] Figure 3 It is a perspective view of the clamping opening of the embodiment.

[0018] In the figure, A is an electric wrench head; 1 is a first interval, 2 is a second interval; 10 is a screw rod; 20 is a twisting block; 30 is a clamping slot, 31 is a first clamping slot, 32 is a second clamping slot; 40 is a clamping opening, and 41 is a clamping block. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0020] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0021] Secondly, the "one embodiment" or "embodiments" referred to herein are intended to mean that a particular feature, structure, or characteristic described in connection with the implementation can be included in at least one implementation of the application. The appearances of the "in one embodiment" or "in embodiments" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another.

[0022] Embodiments

[0023] Referring to Figures 1 to 3 For the embodiments of the application, the embodiments provide a fastener convenient to disassemble, such as Figure 1 As shown in the figure, the screw rod 10 and the twisting block 20 are connected with each other, and the electric wrench head A is suspended above the twisting block 20. The upper end surface of the twisting block 20 is provided with a plurality of clamping grooves 30 gradually reducing in size. The electric wrench head A can be sleeved with the twisting block 20 / clamping groove 30. The twisting block 20 is provided with at least two opposite clamping openings 40 in the middle. The plurality of clamping grooves 30 gradually converge to the center of the twisting block 20, and the spacing between the plurality of clamping grooves 30 gradually expands. By opening a plurality of clamping grooves 30 arranged at equal intervals on the upper end surface of the twisting block 20, the electric wrench head A of different sizes can twist the fastener through the corresponding twisting block 20 and the clamping groove 30 provided on the twisting block 20, so as to facilitate the operator to disassemble or assemble the fastener.

[0024] Specifically, in use, the fastener composed of the screw rod 10 and the twisting block 20 can be applied in various places, and it is difficult to disassemble the fastener applied in some special places. In order to facilitate the disassembly of the fastener, the plurality of clamping grooves 30 opened on the twisting block 20 are arranged as clamping grooves 30 gradually reducing in size towards the center of the twisting block 20. The clamping grooves 30 gradually reducing in size can adapt to electric wrench heads A of different sizes, so that the operator does not need to find electric wrench heads A of corresponding sizes to twist the fastener. In addition, in order to further facilitate the operator to twist the fastener, the opposite clamping openings 40 are opened on both sides of the center point of the twisting block 20. The opening of the clamping openings 40 enables the operator to drive the forceps to twist the fastener, thereby facilitating the quick disassembly of the fastener.

[0025] For example, as shown in the figure, the clamping groove 30 includes a first clamping groove 31 and a second clamping groove 32. The distance between the side wall adjacent to the first clamping groove 31 and the side wall of the twisting block 20 is a first spacing 1. Figure 1 When the clamping groove 30 includes the first clamping groove 31 and the second clamping groove 32, the straight line distance between the side of the first clamping groove 31 close to the side wall of the twisting block 20 and the side wall of the twisting block 20 is the first spacing 1, and the length of the first spacing 1 is 2-3 mm. The first spacing 1 with a thickness of 2-3 mm can effectively avoid the bending deformation of the first spacing 1 under the twisting of the electric wrench head A, and enable the operator to apply sufficient force to drive the twisting block 20 to rotate.

[0026] Specifically, the distance between the adjacent inner walls of the first and second clamping grooves 31 and 32 is a second distance 2, and the first distance 1 is three fourths of the length of the second distance 2. Since the second distance 2 is closer to the center point of the twisting block 20 than the first distance 1, when the size of the hexagonal wrench head is small (i.e., the force arm is short), the force on the head will be relatively large when the same torque is applied, because the force arm is short. Conversely, if the size of the hexagonal wrench head is large (i.e., the force arm is long), the force on the head will be relatively small, because the force arm is long. In order to avoid the second distance 2 from being deformed in a curved shape under the twisting of the electric wrench head A, the length of the second distance 2 is made to be longer than the first distance 1.

[0027] As shown in the drawings, Figure 1 As shown in the drawings, the clamping grooves 40 each have a clamping block 41 on the side corresponding to the center point of the twisting block 20. The clamping block 41 is trapezoidal. When the inner wall of the clamping groove 40 is smooth, the pliers clamping the two clamping grooves 40 are easy to separate from the clamping groove 40 during the twisting process. Therefore, the clamping block 41 is provided on the inner wall of the clamping groove 40, which is adapted to the notch provided on the clamping surface of the pliers. The clamping block 41 and the clamping groove 40 are clamped to avoid the separation of the pliers from the clamping groove 40 during the twisting process.

[0028] The clamping blocks 41 face opposite directions, and the clamping blocks 41 are provided in multiple numbers and at equal intervals.

[0029] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the subject matter. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described in the specification, but extends to any embodiments that would fall within the scope of the appended claims.

[0030] Furthermore, in order to provide a concise description of illustrative embodiments, all features of the actual implementation can not be described (i.e., those unrelated to the best mode of carrying out the present application currently under consideration, or those unrelated to achieving the present application).

[0031] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A fastener for easy disassembly, comprising a screw rod (10) and a twisting block (20) connected to each other, and an electric wrench head (A) suspended above the twisting block (20), characterized in that: The upper end face of the twisting block (20) is provided with a plurality of gradually narrowing clamping grooves (30), the electric wrench head (A) can be sleeved with the twisting block (20) / clamping groove (30), and the middle part of the twisting block (20) is provided with at least two opposite clamping openings (40); the plurality of clamping grooves (30) gradually converge to the center of the twisting block (20), and the spacing between the plurality of clamping grooves (30) gradually expands.

2. The snap-fit fastener of claim 1, wherein: The clamping groove (30) comprises a first clamping groove (31) and a second clamping groove (32), and the distance between the side wall of the first clamping groove (31) adjacent to the twisting block (20) and the side wall of the twisting block (20) is a first spacing (1).

3. The snap-fit fastener of claim 2, wherein: The length of the first spacing (1) is 2-3mm.

4. The snap-fit fastener of claim 3, wherein: The distance between the adjacent inner walls of the first clamping groove (31) and the second clamping groove (32) is a second spacing (2), and the first spacing (1) is three-fourths of the length of the second spacing (2).

5. The snap-fit fastener of claim 1, wherein: One side of the center point of the twisting block (20) of the two clamping openings (40) is provided with a clamping block (41), and the clamping block (41) is in the shape of a trapezoid.

6. The snap-fit fastener of claim 5, wherein: The two clamping blocks (41) are opposite to each other, and the clamping block (41) comprises a plurality of clamping blocks arranged at equal intervals.

Images