Auxiliary mounting clamp for lock pin mechanism
By designing a locking pin mechanism to assist in the installation of the fixture, and utilizing the limiting and guiding structure, the problems of limited space and labor required for installing the locking pin spring seat assembly were solved, enabling a fast and safe installation process and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-03
AI Technical Summary
Existing technologies involve limited operating space, are labor-intensive, and pose safety risks when installing locking pin spring seat assemblies, resulting in low production efficiency.
Design an auxiliary installation fixture for a locking pin mechanism, including a limit seat, a base plate, a vertical plate, a limit shaft, a spindle, a guide sleeve, a pressure rod, and a rocker arm assembly, to achieve rapid installation of the locking pin spring seat assembly through a limit and guide structure.
This enables rapid installation of the locking pin spring seat assembly, reducing operational risks and improving production efficiency.
Smart Images

Figure CN223961231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an auxiliary installation fixture for a locking pin mechanism, belonging to the technical field of mechanical manufacturing. Background Technology
[0002] Currently, when installing locking pin spring seat assemblies, workers typically hold the locking pin spring seat down by hand and use a sharp object to push the retaining spring into the hole. However, the locking pin spring seat is a small part, and the retaining spring is very hard. The installation process requires little operating space and is more laborious, resulting in low production efficiency and safety risks. Summary of the Invention
[0003] The purpose of this invention is to provide a safer and more reliable technical solution to address existing design and manufacturing methods, thereby enabling the rapid installation of the locking pin spring seat assembly, reducing risks, and improving production efficiency.
[0004] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary installation fixture for a locking pin mechanism, comprising a limiting seat (1), a base plate (2), a vertical plate (3), a limiting shaft (4), a spindle (5), a guide sleeve (6), a pressure rod (7), a locking pin spring seat assembly (8), and a rocker arm assembly (9). The limiting seat is a separate component. The vertical plate is mounted on the base plate by bolts. The limiting shaft and the spindle are mounted on the vertical plate. The rocker arm assembly is mounted on the spindle, and the limiting shaft is fixed in position.
[0005] As a preferred option in this solution, the limiting seat is designed with stepped holes to place the guide sleeve, which limits the placement position of the guide sleeve and ensures the length of the locking pin spring seat assembly after it is pressed into place.
[0006] As a preferred option in this solution: the inner hole of the guide sleeve is a tapered hole with a small angle, which can reduce the force required when the pressure rod presses down on the locking pin spring seat assembly; the size of the small hole of the inner hole of the guide sleeve is consistent with the size of the locking pin hole of the rocker arm assembly, ensuring that the locking pin spring seat assembly can be smoothly pressed into the locking pin hole of the rocker arm assembly by the guide sleeve.
[0007] As a preferred option in this solution, the upright plate is designed with holes for installing the limiting shaft and the spindle, ensuring that the locking pin hole is vertically upward after the rocker arm assembly is installed in place.
[0008] The advantages of this utility model are: convenient operation, low maintenance cost, and the ability to quickly install the locking pin spring seat assembly with the rocker arm of the locking pin mechanism, thereby reducing danger and improving production efficiency. Attached Figure Description
[0009] Figure 1 This is a front view of the structural schematic diagram of this utility model; Figure 2 Here is a structural diagram of the locking pin spring seat assembly; Figure 3 This is a schematic diagram showing the installation and rotation of the locking pin spring seat assembly.
[0010] In the diagram: 1-Limit seat, 2-Base plate, 3-Upright plate, 4-Limit shaft, 5-Core shaft, 6-Guide sleeve, 7-Pressure rod, 8-Locking pin spring seat assembly, 9-Rocker arm body assembly, a-Locking pin spring seat, b-Snap ring. Detailed Implementation
[0011] To clearly illustrate the technical features of this solution, a specific implementation method is described below, along with accompanying drawings.
[0012] like Figure 1 As shown, an auxiliary installation fixture for a locking pin mechanism includes a limiting seat (1), a base plate (2), a vertical plate (3), a limiting shaft (4), a spindle (5), a guide sleeve (6), a pressure rod (7), a locking pin spring seat assembly (8), and a rocker arm assembly (9). The limiting seat (1) is a separate component with stepped holes designed to limit the position of the guide sleeve (6) and ensure the length of the locking pin spring seat assembly (8) after it is pressed into place. The vertical plate (3) is installed on the base plate (2) by bolts. The vertical plate (3) is designed with holes for installing the limiting shaft (4) and the spindle (5). The rocker arm assembly (9) is installed on the spindle (5), and the limiting shaft (4) is fixed in position.
[0013] During installation, the guide sleeve (6) is placed into the stepped hole of the limiting seat (1), the locking pin spring seat assembly (8) is placed into the large hole end of the tapered hole of the guide sleeve (6), the pressure rod (7) is pressed against the locking pin spring seat (a), and the pressure rod (7) is manually pressed down to press the locking pin spring seat assembly (8) to the position limited by the limiting seat (1), ensuring that the locking pin spring seat assembly (8) extends a certain length from the small hole end of the guide sleeve (6). During the process, the retaining ring (b) contracts, so that its maximum diameter is the same as the size of the small hole of the guide sleeve (6). To: Install the rocker arm assembly (9) onto the spindle (5), with the limiting surface contacting the limiting shaft (4), transfer the guide sleeve (6) pressed into place by the locking pin spring seat assembly (8) onto the rocker arm assembly (9), place the protruding part of the locking pin spring seat assembly (8) into the locking pin hole of the rocker arm assembly (9), and then use the pressure rod (7) to press down the locking pin spring seat assembly (8) so that it is completely pressed into the locking pin hole of the rocker arm assembly (9), and the snap ring (b) is inserted into the snap groove of the rocker arm assembly (9) to complete the installation.
[0014] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A kind of locking pin mechanism auxiliary installation clamp, including limit seat (1), bottom plate (2), vertical plate (3), limit shaft (4), mandrel (5), guide sleeve (6), pressure bar (7), locking pin spring seat assembly (8), rocker body assembly (9), it is characterized by: The limiting seat is a separate component, the vertical plate is installed on the bottom plate through bolts, and the vertical plate is designed with a hole for installing a limiting shaft and a mandrel, the rocker body assembly is installed on the mandrel, and the limiting shaft fixes the position thereof.
2. A pin mechanism installation aid according to claim 1, wherein: The lock pin spring seat assembly comprises a lock pin spring seat and a snap spring, and the snap spring is installed in a lock pin spring seat clamping groove.
3. The pin mechanism installation aid of claim 1, wherein: The limiting seat is designed with a stepped hole for placing a guide sleeve.
4. The pin mechanism installation aid of claim 1, wherein: The inner hole of the guide sleeve is a tapered hole with a small angle, which can reduce the force required when the pressure rod presses down the lock pin spring seat assembly.