Saddle bolt

By using saddle bolt assemblies made of SWRCH35K material and low-carbon steel bolt heads, combined with environmentally friendly color steel protection, the problem of saddle bolts being susceptible to corrosion and dust is solved, achieving a high-quality and long-life connection effect.

CN223739839UActive Publication Date: 2025-12-30GUANGZHOU HENGWEI AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520572591.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-29
Publication Date
2025-12-30
Estimated Expiration
2035-03-29

AI Technical Summary

Technical Problem

The existing saddle bolts are made of stainless steel, which is susceptible to corrosion and has a short service life. Furthermore, the exposed parts are prone to dust accumulation, affecting stable disassembly.

Method used

The bolt and nut assemblies are made of SWRCH35K material. The thread track of the nut assembly is located on the outside of the bolt shank. The bolt head is made of low carbon steel and plated with 8μm environmentally friendly color steel to prevent the bolt shank from contacting the air. This is combined with an efficient welding design.

Benefits of technology

It improves the service life and quality of saddle bolts, prevents corrosion, and ensures stable disassembly and efficient connection.

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Abstract

The utility model discloses a saddle bolt, which relates to the field of bolt parts, solves the problems that the overall quality of the existing stainless steel material needs to be improved, and the existing stainless steel material is exposed outside, is easy to erode and is short in service life, and adopts the following scheme that the saddle bolt comprises a bolt component and a nut component which is sleeved on the bolt component in a threaded manner, a bearing seat is arranged at the end of the bolt column rod, and a bolt head is fixedly welded to the outer end side of the bearing seat. The nut assembly comprises a screw cylinder arranged on the outer side of the bolt column rod in a threaded and sleeving mode and a saddle at the end of the screw cylinder, and a through screw channel matched with the bolt column rod in specification is formed in the inner side of the saddle and the inner side of the screw cylinder. According to the saddle bolt, through the arrangement of the bolt assembly and the nut assembly screwed on the outer side of the bolt assembly and the arrangement of the length between the bolt assembly and the nut assembly, a screw channel in the whole nut assembly can be located on the outer side of a bolt column in the bolt assembly during screwing, the outer surface of the bolt column is not in contact with air, and the service life of the saddle bolt is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of bolt technology, specifically a saddle bolt. Background Technology

[0002] A saddle bolt is a fastener used to connect and fix equipment. It generally has the functions of high load-bearing capacity, anti-loosening and lightweight. Therefore, it is mainly used to support and fix various equipment, such as vehicle frames and machine frames. It usually consists of three parts: bolt head, threaded rod and saddle. The bolt head connects other components, the threaded rod provides support force, and the saddle is the component that supports and fixes the equipment.

[0003] A search revealed that patent application number 201822017286.0 discloses a bolt assembly, aiming to provide a bolt assembly with high structural strength, simple structure, and strong practicality. The key technical points of the solution are that the bolt body includes a bolt head and a threaded rod connected to the bolt head, a bolt washer between the bolt head and the threaded rod, and a reinforcing component between the bolt washer and the threaded rod. The reinforcing component includes a first reinforcing rib disposed between the bolt washer and the threaded rod and several second reinforcing ribs disposed on the bolt washer. The first reinforcing rib has a triangular cross-section, and each of the second reinforcing ribs is arranged in a circular ring shape and is concentrically arranged. This utility model is applicable to the field of fastener technology.

[0004] The aforementioned application documents achieve a fastening effect through the setting of various components, but they are not applicable to the fastening of car saddles. Car saddle fastening requires additional connection to the frame during fastening. Ordinary bolts have a simple structure, and the bolt posts are exposed to the air. During long-term use, dust accumulates between the bolt grooves, which may affect subsequent stable and effective disassembly. Furthermore, the bolt posts on the outside are susceptible to corrosion from rainwater and air, and their service life needs to be improved.

[0005] Therefore, we propose a saddle bolt. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a saddle bolt that solves the problems of insufficient overall quality of existing stainless steel materials, susceptibility to corrosion due to their exposed exterior, and short service life.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a saddle bolt, comprising a bolt assembly and a nut assembly threaded thereon, wherein the main body of the bolt assembly is a bolt rod, a receiving seat is provided at the end of the bolt rod, and a bolt head is fixedly welded to the outer end of the receiving seat;

[0008] The nut assembly includes a threaded sleeve on the outside of the bolt rod and a saddle at its end. The saddle and the inner side of the threaded sleeve are provided with a through thread that is compatible with the specifications of the bolt rod.

[0009] As a preferred embodiment of this utility model, the receiving seat is an arc-shaped platform, and the receiving seat and the bolt column are integrally formed, and both the bolt column and the receiving seat are made of SWRCH35K.

[0010] The design of the receiving seat facilitates efficient welding between the bolt head and the bolt rod.

[0011] As a preferred embodiment of this utility model, the nut assembly is integrally manufactured from SWRCH35K, and the channel length of the threaded track in the nut assembly is the same as the length of the bolt rod.

[0012] Among them, the SWRCH35K material has a tight internal structure, good mechanical properties, less material loss during processing, high production efficiency, low energy consumption, high dimensional accuracy, good surface finish, and strong practicality.

[0013] As a preferred embodiment of this utility model, the bolt head is a regular hexagonal head, the bolt head is made of low carbon steel, the inner end face of the bolt head is fixedly welded to the outer wall of the receiving seat, and the bolt assembly is fixedly welded to the frame through the outer end face of the bolt head.

[0014] The design of the bolt head shape ensures ease of operation during tightening. Furthermore, the bolt head material, with its low carbon content (typically below 0.25%), makes the low-carbon steel less prone to cracking and deformation during welding, resulting in higher welding quality and ensuring the overall welding and connection effectiveness of the saddle bolt.

[0015] As a preferred embodiment of this utility model, the outer surfaces of the bolt assembly and the nut assembly are coated with an 8μm layer of environmentally friendly color steel.

[0016] The 8μm thick environmentally friendly color steel provides protection for the workpiece from the outside. In addition, during the manufacturing process, it shows no white rust after 72 hours of salt spray testing and no red rust after 240 hours, ensuring the quality of the workpiece.

[0017] This utility model provides a saddle bolt. It has the following beneficial effects:

[0018] This saddle bolt, through the setting of the bolt assembly and its outer screw-on nut assembly, and the setting of the length between them, can ensure that the threaded passage in the entire nut assembly is located outside the bolt rod in the bolt assembly during screwing, so that the outer surface of the bolt rod is not in contact with the air, thus increasing its service life. The setting of its material can ensure its quality, and solve the problem that the overall quality of existing stainless steel materials needs to be improved while being exposed on the outside and susceptible to corrosion with a short service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the bolt assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the nut assembly of this utility model.

[0023] In the diagram: 1. Bolt assembly; 11. Bolt head; 12. Bolt shank; 13. Socket; 2. Nut assembly; 21. Saddle; 22. Screw barrel; 23. Screw track. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a saddle bolt, including a bolt assembly 1 and a nut assembly 2 threaded onto it. The main body of the bolt assembly 1 is a bolt rod 12, and a receiving seat 13 is provided at the end of the bolt rod 12. A bolt head 11 is fixedly welded to the outer end of the receiving seat 13. The nut assembly 2 includes a threaded cylinder 22 threaded onto the outside of the bolt rod 12 and a saddle 21 at its end. The inner sides of the saddle 21 and the threaded cylinder 22 are provided with a through thread 23 that is compatible with the specifications of the bolt rod 12.

[0026] The saddle bolt, through the setting of the bolt assembly 1 and the outer screw-on nut assembly 2, and the setting of the length between them, can ensure that the thread 23 in the entire nut assembly 2 is located outside the bolt post 12 in the bolt assembly 1 during screwing, so that the outer surface of the bolt post 12 is not in contact with the air, thus increasing its service life. The setting of its material can ensure its quality, and solve the problem that the overall quality of existing stainless steel materials needs to be improved while being exposed on the outside is susceptible to corrosion and has a short service life.

[0027] Example 2:

[0028] The receiving seat 13 is an arc-shaped platform. The receiving seat 13 and the bolt rod 12 are integrally formed and both the bolt rod 12 and the receiving seat 13 are made of SWRCH35K. The setting of the receiving seat 13 facilitates efficient welding between the bolt head 11 and the bolt rod 12.

[0029] The nut assembly 2 is made entirely of SWRCH35K, and the channel length of the threaded channel 23 in the nut assembly 2 is the same as the length of the bolt rod 12. The use of SWRCH35K material results in a dense internal structure, good mechanical properties, less material loss during processing, high production efficiency, low energy consumption, high dimensional accuracy, good surface finish, and strong practicality.

[0030] The bolt head 11 is a regular hexagonal head made of low-carbon steel. The inner end face of the bolt head 11 is fixedly welded to the outer wall of the receiving seat 13, and the bolt assembly 1 is fixedly welded to the frame through the outer end face of the bolt head 11. The shape of the bolt head 11 ensures the ease of operation when tightening. At the same time, the material of the bolt head 11 has a low carbon content, usually below 0.25%. This low carbon content makes the low-carbon steel less prone to cracking and deformation during welding, thus resulting in high welding quality and ensuring the overall welding and connection effect of the saddle bolt.

[0031] The outer surfaces of bolt assembly 1 and nut assembly 2 are coated with an 8μm layer of environmentally friendly color steel. The 8μm thick environmentally friendly color steel can protect the workpiece inside from the outside. In addition, during the manufacturing process, it does not produce white rust after 72 hours of salt spray and does not produce red rust after 240 hours, ensuring the quality of the workpiece.

[0032] The working principle and usage process of this utility model are as follows: The bolt assembly 1 and nut assembly 2 are integrally formed by SWRCH35K. At the same time, the outer end face of the receiving seat 13 in the bolt assembly 1 is fixedly welded to the bolt head 11. During operation, the outer end face of the bolt head 11 is fixedly welded to the frame. Meanwhile, the length of the thread 23 in the nut assembly 2 can effectively protect the bolt post 12 from the outside during screwing, avoiding the occurrence of corrosion and low service life.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] 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 saddle bolt, characterized by: Including bolt assembly (1) and nut assembly (2) threaded on it, the main body of the bolt assembly (1) is bolt column (12), the end of the bolt column (12) is provided with a receiving seat (13), and the outer end of the receiving seat (13) is fixedly welded with a bolt head (11); The nut assembly (2) includes a screw cylinder (22) threaded on the outside of the bolt column (12) and a saddle (21) at its end, the saddle (21) and the inside of the screw cylinder (22) are provided with a through screw channel (23) which is compatible with the specifications of the bolt column (12).

2. A saddle bolt according to claim 1, wherein: The receiving seat (13) is a circular arc pedestal, the receiving seat (13) and the bolt column (12) are integrally formed, and the bolt column (12) and the receiving seat (13) are made of SWRCH35K.

3. A saddle bolt according to claim 2, wherein: The nut assembly (2) is integrally made of SWRCH35K, and the length of the screw channel (23) in the nut assembly (2) is the same as the length of the bolt column (12).

4. A saddle bolt according to claim 1, wherein: The bolt head (11) is a regular hexagonal head, the bolt head (11) is made of low carbon steel, the inner end face of the bolt head (11) is fixedly welded on the outer wall of the receiving seat (13), and the bolt assembly (1) is fixedly welded on the frame through the outer end face of the bolt head (11).

5. A saddle bolt according to claim 1, wherein: The outer surface of the bolt assembly (1) and the nut assembly (2) is plated with a layer of 8 mu of environmental protection color steel.

Citation Information

Patent Citations

  • A bolt assembly

    CN209164309U