Bolt structure
By designing a bolt structure, including anti-loosening components and auxiliary support ends, the problem of bolts loosening due to vibration was solved, achieving a stable connection and convenient disassembly, and avoiding safety hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU IRON & STEEL (GROUP) CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-26
AI Technical Summary
Over time, the nuts on bolts may loosen due to friction, vibration, and temperature, potentially causing them to fall off. This can affect equipment operation and pose safety hazards, and the welded fixing method makes disassembly and maintenance difficult.
Design a bolt structure comprising a bolt body, an anti-loosening component, and an auxiliary support end. The anti-loosening component and a tapered washer are connected in a detachable manner. Combined with a shorting post and a positioning pad, the anti-loosening performance of the bolt is improved by a curing layer and electric welding connection.
It effectively prevents the internal hex bolts from loosening in a vibrating environment, ensures a stable bolt connection, facilitates disassembly and maintenance, and avoids safety hazards.
Smart Images

Figure CN224283186U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical technology, specifically relating to a bolt structure. Background Technology
[0002] Bolts are a widely used type of detachable fastening structure, offering advantages such as simple structure, reliable connection, and convenient assembly and disassembly, thus finding widespread application across various industries. Common bolts require a nut to fasten two parts with through holes; unscrewing the nut allows the two parts to be separated, thus bolted connections are detachable. However, over time, due to friction, vibration, and temperature, the nut on a bolt often loosens, leading to bolt detachment. This not only affects equipment operation but can also cause safety accidents, posing significant safety hazards. Therefore, to prevent nut loosening, welding is often used for fastening; however, this method makes bolt disassembly difficult, further complicating maintenance and disassembly.
[0003] In view of the above factors, a bolt structure is provided that mates with the end face of the installation equipment. The vibration of the equipment will not cause the hexagon socket bolt to unscrew from the threaded hole, thus playing a role in preventing the hexagon socket bolt from loosening. Utility Model Content
[0004] The purpose of this invention is to provide a bolt structure to solve the problems mentioned in the background art.
[0005] The purpose of this utility model is achieved through the following technical solution: a bolt structure, including a bolt body and an anti-loosening component provided on the bolt body, the anti-loosening component including a first anti-loosening member and a second anti-loosening member cooperating with the end of the bolt body, the second anti-loosening member being detachably connected to the bolt body;
[0006] The bolt body is an internal hex bolt, and a shorting post is detachably installed on the bolt body. The shorting post is configured to conform to the internal hex hole on the bolt body.
[0007] An auxiliary support end is detachably connected to the outside of the bolt body, and the auxiliary support end cooperates with the bolt body.
[0008] Furthermore, the first anti-loosening component has a curing layer, and the bolt body has a thread-embedded curing layer.
[0009] Furthermore, the second anti-loosening component includes a conical washer fixedly connected to the bolt body. The conical washer is divided into two layers: an upper washer and a lower washer. The upper washer is fixedly connected to the bolt body. The upper washer and the lower washer engage with each other through inclined surfaces. The lower washer is installed in the end face groove connected to the bolt body.
[0010] Furthermore, the outer side of the bolt body is detachably connected to an auxiliary support end, which includes a bracket body that mates with a shorting post. The bracket body includes a connecting piece that connects to the shorting post, and the other end of the connecting piece is connected to the bracket.
[0011] The connecting piece connects the outer end face or upper end face of the shorting post to the bracket by electric welding, and the connecting piece is a steel structure.
[0012] Furthermore, the height of the shorting post is higher than the height of the internal hexagonal hole of the bolt body.
[0013] Furthermore, the outer side of the bolt body is detachably connected to an auxiliary support end including a positioning pad. The positioning pad is provided with a first mounting hole and a second mounting hole spaced apart. The first mounting hole is coaxially arranged with the internal six-hole of the bolt body, and the first mounting hole is an internal six-hole structure.
[0014] The second mounting hole is located on the side away from the first mounting hole, and the second mounting hole is a cylindrical hole;
[0015] The positioning pad is provided with first mounting holes spaced apart with short connecting posts, the height of which is higher than the end face of the positioning pad.
[0016] Furthermore, the shorting post is inserted into the first mounting hole and engages with the internal hexagonal hole of the bolt body. A positioning bolt is engaged in the second mounting hole. The positioning bolt is an internal hexagonal bolt, which passes through the second mounting hole on the positioning pad and engages with the end face threaded hole.
[0017] Furthermore, the threaded hole on the end face is arranged adjacent to the threaded hole of the bolt body assembly, and the center distance between the threaded hole on the end face and the threaded hole of the bolt body assembly is the same as the center distance between the first mounting hole and the second mounting hole.
[0018] A method for preventing bolt loosening specifically includes the following steps;
[0019] An embedded curing layer is set on the threaded rod of the bolt body, and the lower washer of the conical washer is fitted on the threaded rod of the bolt body. The upper washer set on the bolt body and the inclined surface of the lower washer engage with each other, and the lower washer is installed in the end face groove of the bolt body connection.
[0020] An auxiliary support end, including a bracket body that mates with a shorting post, is detachably connected to the outside of the bolt body. The bracket body includes a connecting piece that connects to the shorting post, and the other end of the connecting piece is connected to the bracket. The connecting piece connects the outer end face or the upper end face of the shorting post to the bracket by electric welding. The connecting piece is made of steel structure and is fixed on the outside by the auxiliary support end.
[0021] An auxiliary support end, including a positioning pad, is detachably connected to the outside of the bolt body. The positioning pad has a first mounting hole and a second mounting hole spaced apart. The first mounting hole is coaxially arranged with the internal six-hole of the bolt body, and the first mounting hole is an internal six-hole structure.
[0022] The second mounting hole is located on the side away from the first mounting hole, and the second mounting hole is a cylindrical hole;
[0023] After the bolt body is installed, a positioning pad is placed on the mounting end face. The positioning pad has short pins that fit into the first mounting hole at intervals. The short pins are inserted into the first mounting hole and fit into the internal hexagonal hole of the bolt body. The height of the short pins is higher than the end face of the positioning pad. A positioning bolt is fitted into the second mounting hole on the positioning pad. The positioning bolt is an internal hexagonal bolt. The positioning bolt passes through the second mounting hole on the positioning pad and fits into the threaded hole on the end face.
[0024] The end face threaded hole is arranged adjacent to the threaded hole of the bolt body assembly, and the center distance between the end face threaded hole and the threaded hole of the bolt body assembly is the same as the center distance between the first mounting hole and the second mounting hole.
[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0026] The bolt structure of this utility model fits with the end face of the installation equipment, and the vibration of the equipment will not cause the internal hex bolt to unscrew out of the threaded hole, thus playing a role in preventing the internal hex bolt from loosening.
[0027] This utility model features two different structural forms. To facilitate external fixation of the bolt during use, an auxiliary support end, including a bracket that mates with a shorting post, is detachably connected to the outer side of the bolt body. The bracket includes a connecting piece that connects to the shorting post, and the other end of the connecting piece is connected to the bracket. The bracket is fixedly mounted on the end face connected to the bolt. To remove the hexagonal socket bolt, use a flat chisel to cut off the connection between the connecting piece and the bracket, remove the connecting piece and the shorting post together, and then use a hex wrench to remove the hexagonal socket bolt.
[0028] To facilitate the fixing of bolts on the outside during use, this utility model adopts another fixing method. The outer side of the bolt body is detachably connected to an auxiliary support end, including a positioning pad. The positioning pad is provided with a first mounting hole and a second mounting hole spaced apart. The first mounting hole is coaxially arranged with the internal six-hole of the bolt body, and the first mounting hole is an internal six-hole structure. The second mounting hole is located on the side away from the first mounting hole, and the second mounting hole is a cylindrical hole. The positioning pad is provided with short connecting posts that fit inside the first mounting hole spaced apart. The height of the short connecting posts is higher than the end face of the positioning pad. Attached Figure Description
[0029] Figure 1 This is a three-dimensional schematic diagram of the bolt structure of this utility model;
[0030] Figure 2 This is a utility model Figure 1 A plan view;
[0031] Figure 3 This is a schematic diagram of the auxiliary support end connection of this utility model;
[0032] Figure 4 This is a utility model Figure 3 Enlarged view of a portion;
[0033] Figure 5 This is another schematic diagram of the present invention with an auxiliary support end;
[0034] Figure 6 This is a three-dimensional schematic diagram of the positioning pad of this utility model;
[0035] Figure 7 This is a utility model Figure 6 A plan view;
[0036] Figure 8 This is a schematic diagram of the shorting post of this utility model;
[0037] Figure 9 This is a schematic diagram of the upper and lower washers of this utility model. Detailed Implementation
[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0040] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0041] like Figure 1-9 As shown, a bolt structure is characterized in that it includes a bolt body 1 and an anti-loosening component disposed on the bolt body 1. The anti-loosening component includes a first anti-loosening element 11 and a second anti-loosening element 12 that cooperates with the end of the bolt body 1. The second anti-loosening element 12 is detachably connected to the bolt body 1.
[0042] The bolt body 1 is an internal hex bolt, and a shorting post 2 is detachably installed on the bolt body 1. The shorting post 2 is configured to conform to the internal hex hole on the bolt body 1.
[0043] The auxiliary support end 3 is detachably connected to the outer side of the bolt body 1, and the auxiliary support end 3 cooperates with the bolt body 1.
[0044] To enhance the stability of the bolt body 1 during use and prevent loosening, the first anti-loosening component is a cured layer, and the thread of the bolt body 1 is embedded with a cured layer.
[0045] The curing layer uses threadlocker, which is applied to the threads and cures to form a locking layer. It can be used to remove low- to medium-strength adhesive or to permanently fix high-strength adhesive.
[0046] To facilitate the absorption of vibration energy and improve the vibration environment during use, the upper and lower washers engage through their beveled contact surfaces. The second anti-loosening component includes a conical washer fixedly connected to the bolt body 1. The conical washer consists of two layers: an upper washer 12A and a lower washer 12B. The upper washer 12A is fixedly connected to the bolt body 1, and the mating surfaces of the upper washer 12A and the lower washer 12B engage through their beveled contact surfaces. The lower washer 12B is installed in the end face groove connected to the bolt body 1.
[0047] To facilitate the fixing of the bolt on the outside during use, the outer side of the bolt body 1 is detachably connected to the auxiliary support end 3, which includes a bracket body that cooperates with the shorting post 2. The bracket body includes a connecting piece 31 that is connected to the shorting post 2, and the other end of the connecting piece 31 is connected to the bracket 32.
[0048] The bracket is fixedly mounted on the end face that is connected to the bolt.
[0049] The connecting piece 31 connects the outer end face or upper end face of the shorting post 2 to the bracket by electric welding. The connecting piece 31 is a steel structure, and the bracket is a square or cylindrical structure made of steel. The bracket is fixed to the end face of the bolt connection.
[0050] To facilitate fixing the shorting post 2 to the connecting piece during use, the height of the shorting post 2 is higher than the height of the internal six holes of the bolt body 1.
[0051] The shorting post 2 is a hexagonal prism structure that matches the internal six holes on the bolt body 1.
[0052] When you need to remove the hex bolt, use a flat chisel to cut off the connection between the iron connecting piece and the bracket, and remove the connecting piece and shorting post 2 together. Then you can use a hex wrench to remove the hex bolt.
[0053] To facilitate the fixing of the bolt on the outside during use, the outer side of the bolt body 1 is detachably connected to the auxiliary support end 3, which includes a positioning pad 3A. The positioning pad 3A is provided with a first mounting hole 4 and a second mounting hole 5 spaced apart. The first mounting hole 4 is coaxially arranged with the inner six holes of the bolt body 1, and the first mounting hole 4 is an inner six hole structure.
[0054] The second mounting hole 5 is located on the side away from the first mounting hole 4, and the second mounting hole 5 is a cylindrical hole;
[0055] The positioning pad 3A is provided with a first mounting hole 4 spaced apart, and a shorting post 2 is fitted inside. The height of the shorting post 2 is higher than the end face of the positioning pad.
[0056] To facilitate the use of positioning bolts and positioning pads during operation, and to prevent bolt loosening, the shorting post 2 is inserted into the first mounting hole 4 and engages with the hexagonal socket of the bolt body 1. The positioning bolt is fitted into the second mounting hole 5. The positioning bolt is an internal hexagonal bolt, which passes through the second mounting hole 5 on the positioning pad and engages with the end face threaded hole 6.
[0057] The end face threaded hole 6 is arranged adjacent to the threaded hole of the bolt body 1, and the center distance between the end face threaded hole 6 and the threaded hole of the bolt body 1 is the same as the center distance between the first mounting hole and the second mounting hole.
[0058] When the bolts are arranged in a circumferential pattern, the aforementioned shorting posts can be fixed by drilling holes on different surfaces of the shorting posts and connecting them with steel wire.
[0059] A method for preventing bolt loosening specifically includes the following steps;
[0060] An embedded curing layer is set on the threaded rod of the bolt body, and the lower washer of the conical washer is fitted on the threaded rod of the bolt body. The upper washer set on the bolt body and the inclined surface of the lower washer engage with each other, and the lower washer is installed in the end face groove of the bolt body connection.
[0061] An auxiliary support end, including a bracket body that mates with a shorting post, is detachably connected to the outside of the bolt body. The bracket body includes a connecting piece that connects to the shorting post, and the other end of the connecting piece is connected to the bracket. The connecting piece connects the outer end face or the upper end face of the shorting post to the bracket by electric welding. The connecting piece is made of steel structure and is fixed on the outside by the auxiliary support end.
[0062] An auxiliary support end, including a positioning pad, is detachably connected to the outside of the bolt body. The positioning pad has a first mounting hole and a second mounting hole spaced apart. The first mounting hole is coaxially arranged with the internal six-hole of the bolt body, and the first mounting hole is an internal six-hole structure.
[0063] The second mounting hole is located on the side away from the first mounting hole, and the second mounting hole is a cylindrical hole;
[0064] After the bolt body is installed, a positioning pad is placed on the mounting end face. The positioning pad has short pins that fit into the first mounting hole at intervals. The short pins are inserted into the first mounting hole and fit into the internal hexagonal hole of the bolt body. The height of the short pins is higher than the end face of the positioning pad. A positioning bolt is fitted into the second mounting hole on the positioning pad. The positioning bolt is an internal hexagonal bolt. The positioning bolt passes through the second mounting hole on the positioning pad and fits into the threaded hole on the end face.
[0065] The end face threaded hole is arranged adjacent to the threaded hole of the bolt body assembly, and the center distance between the end face threaded hole and the threaded hole of the bolt body assembly is the same as the center distance between the first mounting hole and the second mounting hole.
[0066] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0067] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A bolt structure, characterized in that: It includes a bolt body (1) and an anti-loosening component provided on the bolt body (1). The anti-loosening component includes a first anti-loosening element and a second anti-loosening element that cooperates with the end of the bolt body (1). The second anti-loosening element is detachably connected to the bolt body (1). The bolt body (1) is an internal hex bolt, and a shorting post (2) is detachably installed on the bolt body (1). The shorting post (2) is configured to conform to the internal hex hole on the bolt body (1). The outer side of the bolt body (1) is detachably connected to an auxiliary support end, which cooperates with the bolt body (1).
2. The bolt structure according to claim 1, characterized in that: The first anti-loosening component is cured layer, and the thread-embedded cured layer of the bolt body (1) is cured layer.
3. The bolt structure according to claim 2, characterized in that: The second anti-loosening component includes a conical washer fixedly connected to the bolt body (1). The conical washer is divided into two layers: an upper washer and a lower washer. The upper washer is fixedly connected to the bolt body (1). The upper washer and the lower washer are in contact with each other through inclined surfaces. The lower washer is installed in the end face groove connected to the bolt body (1).
4. The bolt structure according to claim 3, characterized in that: The outer side of the bolt body (1) is detachably connected to an auxiliary support end, which includes a bracket body that cooperates with a shorting post (2). The bracket body includes a connecting piece that is connected to the shorting post (2), and the other end of the connecting piece is connected to the bracket. The connecting piece connects the outer end face or upper end face of the shorting post (2) to the bracket by electric welding, and the connecting piece is made of steel structure.
5. The bolt structure according to claim 4, characterized in that: The height of the shorting post (2) is higher than the height of the inner six holes of the bolt body (1).
6. The bolt structure according to claim 3, characterized in that: The outer side of the bolt body (1) is detachably connected to an auxiliary support end including a positioning pad. The positioning pad is provided with a first mounting hole and a second mounting hole spaced apart. The first mounting hole is coaxially arranged with the inner six holes of the bolt body (1), and the first mounting hole is an inner six hole structure. The second mounting hole is located on the side away from the first mounting hole, and the second mounting hole is a cylindrical hole; The positioning pad is provided with first mounting holes with mating short pins (2) spaced apart, and the height of the short pins (2) is higher than the end face of the positioning pad.
7. The bolt structure according to claim 6, characterized in that: The shorting post (2) is inserted into the first mounting hole and engages with the internal hexagonal hole of the bolt body (1). The positioning bolt is engaged in the second mounting hole. The positioning bolt is an internal hexagonal bolt and passes through the second mounting hole on the positioning pad and engages with the end face threaded hole.
8. The bolt structure according to claim 7, characterized in that: The end face threaded hole is arranged adjacent to the threaded hole assembled on the bolt body (1), and the center distance between the end face threaded hole and the threaded hole assembled on the bolt body (1) is the same as the center distance between the first mounting hole and the second mounting hole.