Simulation bolt
By introducing steel ball and washer assemblies into the simulated bolt, the problems of loosening and misalignment in traditional simulated bolts are solved, achieving highly stable and accurate testing, adapting to different testing equipment and interface shapes, and ensuring the safety and torque variation of the bolt body and housing.
Patent Information
- Application Number
- CN202520774258.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-23
AI Technical Summary
Traditional simulated bolts are prone to loosening or misalignment during testing, leading to testing errors. Furthermore, it is difficult to ensure the stability and safety between the bolt body and the shell, and it cannot effectively simulate changes in the bolt body torque.
A simulated bolt was designed, comprising a bolt body, a simulated bolt housing, a washer assembly, and a steel ball assembly. Stability is ensured through high-precision matching of the steel ball assembly and elastic force provided by springs. The design of the washer assembly prevents loosening and leakage, and enables adaptive adjustment and torque variation.
It improves the testing stability and accuracy of simulated bolts, reduces testing errors, enhances versatility and flexibility, ensures the stability and safety between the bolt body and the housing, and can adapt to different testing equipment and interface shapes.
Smart Images

Figure CN223839512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt technology, and in particular to simulated bolts. Background Technology
[0002] A simulated bolt is a tool designed to replace a real bolt for functional simulation. It typically has a similar appearance and size to a real bolt to facilitate the design, testing, or demonstration process, while saving costs and helping engineers make intuitive design adjustments and optimizations.
[0003] However, traditional simulated bolts are prone to testing errors due to loosening or misalignment during the testing process, and cannot quickly adapt to different testing equipment and interface shapes. At the same time, traditional simulated bolts cannot ensure the stability and safety between the bolt body and the shell, which leads to the inability to effectively simulate changes in the bolt body torque. Utility Model Content
[0004] The purpose of this invention is to provide a simulated bolt to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a bolt body, a simulated bolt shell is provided on the outside of the bolt body, a gasket assembly is provided between the bolt body and the simulated bolt shell, a positioning square head is provided at the bottom of the simulated bolt shell, and a steel ball assembly is provided on one side of the positioning square head.
[0006] As a preferred embodiment of the present invention, the steel ball assembly includes a spring disposed on the inner wall of the positioning square head, a movable steel ball disposed on the side of the spring away from the inner wall of the positioning square head, and a steel ball fixing sleeve disposed on the side of the positioning square head corresponding to the position of the movable steel ball.
[0007] As a preferred embodiment of the present invention, the gasket assembly includes a bolt washer one disposed on the outside of the bolt body, the bolt washer one being located at the top of the simulated bolt shell, a plurality of disc-shaped gaskets being sleeved on the outside of the bolt body, the plurality of disc-shaped gaskets being located inside the simulated bolt shell, and a bolt washer two being disposed between the plurality of disc-shaped gaskets and the bolt body.
[0008] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0009] 1. This utility model, by setting up a steel ball assembly, ensures a high-precision match between the movable steel ball on one side of the square head and the interface of the testing equipment, thereby ensuring the stability and accuracy of the simulated bolt during the testing process and reducing testing errors caused by loosening or misalignment. At the same time, the spring provides elasticity to the movable steel ball, enabling it to adaptively adjust according to different testing equipment and interface shapes. This allows the simulated bolt to be widely used in various testing scenarios, improving the versatility and flexibility of the test.
[0010] 2. This utility model, by setting a gasket assembly, the combination of bolt gasket one, disc gasket and bolt gasket two can prevent bolt loosening or leakage, and ensure the stability and safety between the bolt body and the simulated bolt shell. At the same time, when the bolt body is tightened, the disc gasket will deform, thereby realizing the change of torque of the simulated bolt body. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the steel ball assembly structure of this utility model;
[0013] Figure 3 for Figure 2 Enlarged diagram of point B in the middle.
[0014] Reference numerals: 1. Bolt body; 2. Simulated bolt housing; 3. Positioning square head; 4. Steel ball assembly; 41. Movable steel ball; 42. Steel ball retaining sleeve; 43. Spring; 5. Washer assembly; 51. Bolt washer one; 52. Bolt washer two; 53. Disc washer. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0016] like Figures 1-3 As shown, the simulated bolt proposed in this utility model includes a bolt body 1, which is the core component of the simulated bolt and is responsible for transmitting and bearing the tightening torque. A simulated bolt shell 2 is provided on the outside of the bolt body 1. A gasket assembly 5 is provided between the bolt body 1 and the simulated bolt shell 2. A positioning square head 3 is provided at the bottom of the simulated bolt shell 2. The positioning square head 3 enables the simulated bolt to be stably inserted into or stuck on the testing equipment, ensuring the accuracy of the test results. A steel ball assembly 4 is provided on one side of the positioning square head 3.
[0017] The steel ball assembly 4 includes a spring 43 disposed on the inner wall of the positioning square head 3. The spring 43 provides elastic force to the movable steel ball 41. The movable steel ball 41 is disposed on the side of the spring 43 away from the inner wall of the positioning square head 3. The movable steel ball 41 matches the interface of the testing equipment to ensure that the simulated bolt will not loosen or fall off during the test. A steel ball fixing sleeve 42 is disposed on one side of the positioning square head 3 corresponding to the position of the movable steel ball 41. The steel ball fixing sleeve 42 fixes the position of the movable steel ball 41 to prevent it from falling off or being damaged during use.
[0018] The gasket assembly 5 includes a bolt washer 51 disposed on the outside of the bolt body 1. The bolt washer 51 is located on the top of the simulated bolt housing 2. The bolt washer 51 provides tightening force and sealing effect to prevent the bolt body 1 from loosening or leaking. Several disc-shaped gaskets 53 are sleeved on the outside of the bolt body 1 and are located inside the simulated bolt housing 2. When the bolt body 1 is tightened, the disc-shaped gaskets 53 will deform, thereby realizing the change of torque of the simulated bolt body 1. A bolt washer 52 is disposed between the disc-shaped gaskets 53 and the bolt body 1. The bolt washer 52 plays a transition and buffering role, further enhancing the tightening performance and sealing effect of the bolt body 1.
[0019] In use, the operator first selects a suitable simulated bolt according to the testing requirements. The simulated bolt is an integrated structure that can be inserted to simulate the process of the bolt body 1 from loose to tight. The simulated bolt is available in two sizes: 1 / 2” 12.7mm and 3 / 4” 19.05mm. Then, the simulated bolt is inserted into the torque tester or clamped in a vise through the bottom positioning square head 3. The movable steel ball 41 in the steel ball assembly 4 inside the positioning square head 3 matches the interface of the torque tester or vise. The operator can apply gradually increasing torque by tightening the bolt body 1 equipped on the simulated bolt structure using a socket. When the bolt body 1 is tightened, the disc washer 53 will deform, thereby realizing the change of torque of the simulated bolt body 1.
[0020] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. Simulated bolt, which includes: The bolt body (1) is characterized in that: a simulated bolt shell (2) is provided on the outside of the bolt body (1), a gasket assembly (5) is provided between the bolt body (1) and the simulated bolt shell (2), a positioning square head (3) is provided at the bottom of the simulated bolt shell (2), and a steel ball assembly (4) is provided on one side of the positioning square head (3).
2. The simulated bolt according to claim 1, characterized in that: The steel ball assembly (4) includes a spring (43) disposed on the inner wall of the positioning square head (3). A movable steel ball (41) is disposed on the side of the spring (43) away from the inner wall of the positioning square head (3). A steel ball fixing sleeve (42) is disposed on the side of the positioning square head (3) corresponding to the position of the movable steel ball (41).
3. The simulated bolt according to claim 2, characterized in that: The gasket assembly (5) includes a bolt washer one (51) disposed on the outside of the bolt body (1), the bolt washer one (51) being located on the top of the simulated bolt housing (2), a number of disc-shaped gaskets (53) being sleeved on the outside of the bolt body (1), the number of disc-shaped gaskets (53) being located inside the simulated bolt housing (2), and a bolt washer two (52) being disposed between the number of disc-shaped gaskets (53) and the bolt body (1).