Bolt convenient to disassemble

Abstract

The utility model mainly relates to the technical field of bolts, and provides a bolt convenient to disassemble, which comprises a bolt, an outer hexagonal screw head is fixedly arranged at the top of the bolt, a distance adjusting sleeve is inserted into the top of the outer hexagonal screw head, the front end of the distance adjusting sleeve is in threaded connection with a distance adjusting screw, and the distance adjusting screw rotates to adjust the distance adjusting sleeve. The length of the distance adjusting sleeve extending out of the position adjusting hole of the outer hexagonal screw head is adjusted, at the moment, the extending-out part of the distance adjusting sleeve is combined with the width of the outer hexagonal screw head, a spanner or a sleeve tool of a larger specification can be adapted to screw a bolt, and the distance adjusting sleeve is contained in the outer hexagonal screw head. And a wrench or a sleeve tool matched with the outer hexagonal screw head in specification can be used for screwing, so that a user can conveniently and quickly disassemble and assemble a bolt product in the assembly operation process.

Description

Technical Field

[0001] This utility model mainly relates to the field of bolt technology, specifically to a bolt that is easy to disassemble. Background Technology

[0002] Bolts with quick-release designs typically have a raised or recessed structure at the bolt head, which allows tools to apply force to the raised or recessed structure during disassembly, enabling quick bolt installation and removal. Bolts with quick-release designs are usually used in non-critical structural stress areas.

[0003] During the production and assembly of the equipment, larger bolts are used for the critical structural stress points and smaller bolts are used for the non-critical structural stress points. However, during the disassembly and assembly process, users need to use different sizes of wrenches or sleeve tools depending on the bolt specifications, which presents certain technical problems that make disassembly and assembly inconvenient.

[0004] The inventors have proposed a bolt that is easy to disassemble. By improving the structure of the bolt's external hexagonal head and adding an adjustable sleeve with an adjustable installation position, the traditional bolts used in non-critical structural stress areas can be replaced with bolts with variable-sized external hexagonal heads. This allows users to easily disassemble and assemble bolts of different specifications and grades on equipment using a single-size wrench or socket. Utility Model Content

[0005] 1. Technical problem solved by the utility model:

[0006] This utility model provides a bolt that is easy to disassemble, solving the technical problem that existing bolt products are inconvenient to disassemble and assemble when using different specifications of products in different positions.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: a bolt that is easy to disassemble, comprising a bolt, wherein an external hexagonal screw head is fixedly provided on the top of the bolt, an adjusting sleeve is inserted into the top of the external hexagonal screw head, and an adjusting screw is threadedly connected to the front end of the adjusting sleeve.

[0009] Furthermore, the bottom of the bolt is fixed with a threaded shank, and a nut is threadedly connected to the outer side of the threaded shank.

[0010] Furthermore, a positioning groove is fixedly provided at the center of the top of the external hexagonal screw head, and the depth of the positioning groove is at least 1:1.4 to the height of the external hexagonal screw head. Adjustment holes are fixedly provided at both the front and rear ends of the external hexagonal screw head, and the inner diameter of the adjustment hole is smaller than the outer diameter of the screw head of the adjusting screw.

[0011] Furthermore, a limiting spring is detachably engaged at the front flange of the adjusting sleeve, and the rear end of the limiting spring is detachably engaged with the rear side of the inner wall of the positioning groove. The outer diameter of the rear end of the adjusting sleeve is smaller than the inner diameter of the adjusting hole.

[0012] Furthermore, the front end of the adjusting screw abuts against the front side of the inner wall of the positioning groove, and the front end of the adjusting screw is fixed with a cross groove.

[0013] 3. Beneficial effects:

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0015] This utility model provides a bolt that is easy to disassemble. The rotation of the adjusting screw completes the length adjustment of the adjusting sleeve extending from the adjusting hole of the external hexagonal screw head. At this time, the part of the adjusting sleeve extending out is combined with the width of the external hexagonal screw head, which can be used to tighten the bolt with a larger size wrench or socket tool. The adjusting sleeve is stored in the external hexagonal screw head, and can be tightened with a wrench or socket tool that matches the size of the external hexagonal screw head, which makes it convenient for users to quickly disassemble and assemble bolt products during assembly operations.

[0016] This utility model provides a bolt that is easy to disassemble. The diameter of the adjusting hole is larger than the outer diameter of the screw head of the adjusting screw, so as to prevent the pitch-changing assembly composed of the adjusting screw, adjusting sleeve and limiting spring from falling off the external hexagonal screw head. The limiting spring and adjusting sleeve cooperate to make the screw head of the adjusting screw abut against the front of the inner wall of the positioning groove, thus completing the anti-loosening design of the assembly between the adjusting screw and the adjusting sleeve.

[0017] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0018] Figure 1 This is a perspective view of the structure of this utility model;

[0019] Figure 2 This is a half-sectional perspective view of the external hexagonal screw head structure of this utility model;

[0020] Figure 3 This is a top sectional view of the external hexagonal screw head structure of this utility model;

[0021] Figure 4 This is a half-sectional perspective view of the adjustable sleeve structure of this utility model;

[0022] Figure 5 This is a utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0023] Figure label:

[0024] 1- Bolt; 11- Threaded rod; 12- Nut;

[0025] 2-External hexagonal screw head; 21-Positioning groove; 22-Adjusting hole;

[0026] 3-Adjusting sleeve; 31-Limit spring;

[0027] 4-Adjusting screw. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element; the terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] See attached document Figure 1-5 This utility model provides a bolt that is easy to disassemble, including a bolt 1, with an external hexagonal screw head 2 fixed on the top of the bolt 1. An adjusting sleeve 3 is inserted into the top of the external hexagonal screw head 2, and an adjusting screw 4 is threaded to the front end of the adjusting sleeve 3.

[0032] In this embodiment, a threaded shank 11 is fixed at the bottom of the bolt 1, and a nut 12 is threadedly connected to the outer side of the threaded shank 11.

[0033] The basic structure of bolt 1 still consists of three parts: hexagonal head 2, threaded shank 11, and nut 12. Compared with conventional bolt 1, the hexagonal head 2 designed this time has been heightened. The top of the hexagonal head 2 with increased height has a positioning groove 21, and there is still space below it for tools such as wrenches or sockets to tighten.

[0034] In this embodiment, a positioning groove 21 is fixedly provided at the middle of the top of the external hexagonal screw head 2. The depth of the positioning groove 21 is at least 1:1.4 to the height of the external hexagonal screw head 2. Adjustment holes 22 are fixedly provided at both the front and rear ends of the external hexagonal screw head 2. The inner diameter of the adjustment hole 22 is smaller than the outer diameter of the screw head of the adjusting screw 4.

[0035] The diameter of the adjusting hole 22 is larger than the outer diameter of the screw head of the adjusting screw 4, so as to prevent the pitch-changing assembly composed of the adjusting screw 4, the adjusting sleeve 3 and the limiting spring 31 from falling off the external hexagonal screw head 2. The limiting spring 31 cooperates with the adjusting sleeve 3 to press the screw head of the adjusting screw 4 against the front of the inner wall of the positioning groove 21, thus completing the anti-loosening design of the assembly between the adjusting screw 4 and the adjusting sleeve 3.

[0036] In this embodiment, a limiting spring 31 is detachably snapped onto the front flange of the adjusting sleeve 3, and the rear end of the limiting spring 31 is detachably snapped onto the rear side of the inner wall of the positioning groove 21. The outer diameter of the rear end of the adjusting sleeve 3 is smaller than the inner diameter of the adjusting hole 22.

[0037] Rotating the adjusting screw 4 adjusts the length of the adjusting sleeve 3 extending from the adjusting hole of the external hexagonal head 2. At this time, the extended part of the adjusting sleeve 3 is combined with the width of the external hexagonal head 2, which can be used with larger wrenches or socket tools to tighten the bolt 1. The adjusting sleeve 3 is stored inside the external hexagonal head 2, and can be tightened with a wrench or socket tool that matches the size of the external hexagonal head 2, which makes it convenient for users to quickly disassemble and assemble the bolt 1 during the assembly process.

[0038] In this embodiment, the front end of the adjusting screw 4 abuts against the front side of the inner wall of the positioning groove 21, and the front end of the adjusting screw 4 is fixed with a cross groove.

[0039] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bolt for easy disassembly, characterized by: The bolt (1) is provided with an external hexagonal head (2) at the top, and the external hexagonal head (2) is inserted with an adjusting sleeve (3), and the adjusting sleeve (3) is threadedly connected with an adjusting screw (4) at the front end.

2. A bolt for easy removal according to claim 1, characterized in that: The bottom of the bolt (1) is provided with a threaded shank (11), and the outer side of the threaded shank (11) is threadedly connected with a nut (12).

3. A bolt for easy removal according to claim 1, characterized in that: The top end of the external hexagonal head (2) is provided with a positioning groove (21) in the middle, and the depth of the positioning groove (21) is at least 1:1.4 compared with the height of the external hexagonal head (2), and the front and rear ends of the external hexagonal head (2) are provided with adjusting holes (22), and the inner diameter of the adjusting holes (22) is smaller than the outer diameter of the head of the adjusting screw (4).

4. A bolt for easy removal according to claim 1, characterized in that: The front flange of the adjusting sleeve (3) is detachably connected with a limiting spring (31), the rear end of the limiting spring (31) is detachably connected with the inner wall of the rear side of the positioning groove (21), and the outer diameter of the rear end of the adjusting sleeve (3) is smaller than the inner diameter of the adjusting hole (22).

5. A bolt for easy removal according to claim 1, characterized in that: The front end of the adjusting screw (4) is in contact with the inner wall of the front side of the positioning groove (21), and the front end of the adjusting screw (4) is provided with a cross groove.

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