Tool for quickly disassembling and assembling engine locking plate

By designing a tooling system for quick installation and removal of engine valve lock plates, and utilizing the combination of a rotating adjusting seat and a downward pressure head, the problem of difficult valve lock plate installation and removal was solved, enabling quick installation and removal of valve lock plates and simplifying the maintenance process.

CN223493170UActive Publication Date: 2025-10-31ZHEJIANG HANGGUAN AUTO PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423118236.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-10-31
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

In existing technologies, valve lock plates are difficult to install and remove, especially when the valves are tilted during engine installation, making it difficult for tools to press down the valve spring seats, which causes trouble for maintenance personnel.

Method used

A tooling for quick installation and removal of engine valve lock plates was designed, including a worktable, a bracket, a bearing seat, a rotating shaft, a rotary adjustment seat, a pressure rod, and a pressure head. By adjusting the angle of the rotary seat, the valve stem and the pressure head are aligned on the same vertical axis, enabling convenient installation and removal of the valve lock plates.

Benefits of technology

It enables quick installation and removal of valve lock plates, simplifies the maintenance process, and improves installation and removal efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223493170U_ABST
    Figure CN223493170U_ABST
Patent Text Reader

Abstract

The utility model discloses a tool for quickly disassembling and assembling an engine locking plate, which comprises a working table and a support, bearing seats are respectively arranged on two sides of the working table, a rotating shaft is rotatably connected onto the bearing seats through bearings, a rotary adjusting seat is fixedly connected onto the rotating shaft, and adjusting knobs are respectively arranged on the front side and the rear side of the rotary adjusting seat. A row of positioning columns are fixedly installed on the rotary adjusting base, a transverse guide rail is installed on the support, a horizontal moving base horizontally moving along the guide rail is arranged on the transverse guide rail, and a guide groove guiding in the vertical direction is formed in the horizontal moving base. A guide shaft moving along the guide groove is arranged in the guide groove, a lower pressing rod is mounted on the guide shaft, a lower pressing head is mounted at the bottom of the lower pressing rod, an air valve rod penetrating hole is formed in the bottom of the lower pressing head, and a locking plate mounting notch is formed in the side face of the bottom of the lower pressing head. The dismounting tool is specially used for dismounting the engine valve cotter, and the valve cotter is convenient and fast to dismount.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of engine disassembly and assembly technology, and in particular to a tooling for quick disassembly and assembly of engine lock plates. Background Technology

[0002] like Figure 1 As shown, the valve is an important component of the engine, generally consisting of a valve stem 1, a spring 2, a valve spring seat 3, and a valve lock plate 4. The valve lock plate is generally composed of two halves, in the shape of a hollow tube, with a flange on its inner wall, which mates with a groove at the upper end of the valve stem.

[0003] Currently, in the vehicle repair industry, when repairing an engine, valve installation involves passing the valve through the lower end of the valve guide, placing the valve spring and valve spring seat, pressing down the valve spring seat with a tool, and then using other tools to insert the valve lock plate. When removing the valve, the same process is required: pressing down the valve spring seat with a tool and then using other tools to remove the valve lock plate. Due to the strong elasticity of the valve spring and the limited space for valve installation and removal, it is not easy to remove or install the valve lock plate, which causes great trouble for repair personnel.

[0004] In particular, existing engines require valves to be installed directly on the engine. Since the valves are installed at an angle relative to the engine, it is not easy to use existing tools to press down the valve spring seats and install or remove the valve lock plates. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model designs a tooling for quick assembly and disassembly of engine lock plates.

[0006] The present invention adopts the following technical solution:

[0007] A tooling for quick installation and removal of engine locking plates includes a worktable and a bracket. Bearing seats are provided on both sides of the worktable, and a rotating shaft is rotatably connected to the bearing seats via bearings. A rotating adjustment seat is fixedly connected to the rotating shaft. Adjustment knobs are provided on both the front and rear sides of the rotating adjustment seat for adjusting the deflection angle in the front-rear direction. A row of positioning pins is fixedly installed on the rotating adjustment seat for positioning in conjunction with the bottom surface of the engine block. A transverse guide rail is installed on the transverse guide rail, and a horizontally movable seat is provided on the transverse guide rail. The horizontally movable seat has a guide groove for vertical guidance, and a guide shaft that moves along the guide groove is provided within the guide groove. A pressure rod is installed on the guide shaft, and a pressure head is installed at the bottom of the pressure rod. A valve stem through hole is provided at the bottom of the pressure head, the valve stem through hole being larger than the diameter of the valve stem end but smaller than the outer diameter of the valve spring seat. A locking plate mounting slot is opened on the side of the bottom of the pressure head.

[0008] Preferably, a return spring is installed on the horizontal moving seat, and one end of the return spring is fixedly connected to the pressure rod.

[0009] Preferably, a pressing handle is installed on the pressing rod.

[0010] Preferably, the rotary adjustment base is equipped with an adjustment handle.

[0011] Preferably, the rotary adjustment seat is equipped with an anti-slip pad.

[0012] Preferably, the anti-slip pad is a rubber pad.

[0013] The beneficial effects of this utility model are: This utility model designs a tooling for quick disassembly and assembly of engine valve lock plates, which is specifically used for disassembly and assembly of engine valve lock plates. Usually, by rotating the adjustment seat, the valve stem and the lower pressure head are aligned in the same vertical axis direction, which makes it convenient to disassemble and assemble the valve lock plate in the lock plate mounting slot after the lower pressure head presses against the valve spring seat. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an existing valve structure;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a diagram showing one usage state of this utility model;

[0017] In the diagram: 1. Valve stem, 2. Spring, 3. Valve spring seat, 4. Valve lock plate, 5. Bracket, 6. Lateral guide rail, 7. Horizontal moving seat, 8. Return spring, 9. Guide groove, 10. Guide shaft, 11. Press rod, 12. Press handle, 13. Press head, 14. Adjusting knob, 15. Positioning pin, 16. Anti-slip pad, 17. Adjusting handle, 18. Valve stem through hole, 19. Lock plate mounting slot, 20. Worktable, 21. Bearing seat, 22. Rotary shaft, 23. Rotary adjusting seat. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0019] Example: Figure 2As shown, a tooling for quickly installing and removing engine locking plates includes a worktable 20 and a bracket 5. Bearing seats 21 are respectively provided on both sides of the worktable. A rotating shaft 22 is rotatably connected to the bearing seats via bearings. A rotating adjustment seat 23 is fixedly connected to the rotating shaft. Adjustment knobs 14 are respectively provided on the front and rear sides of the rotating adjustment seat for adjusting the deflection angle in the front-rear direction. A row of positioning pins 15 are fixedly installed on the rotating adjustment seat for positioning in conjunction with the bottom surface of the engine block. A transverse guide rail 6 is installed on the bracket. A horizontal moving seat 7 that moves horizontally along the guide rail is provided on the transverse guide rail. A guide groove 9 that guides vertically is provided on the horizontal moving seat. A guide shaft 10 that moves along the guide groove is provided in the guide groove. A pressure rod 11 is installed on the guide shaft. A pressure head 13 is installed at the bottom of the pressure rod. A valve stem through hole 18 is provided at the bottom of the pressure head. The valve stem through hole is larger than the diameter of the valve stem end but smaller than the outer diameter of the valve spring seat. A locking plate mounting slot 19 is opened on the side of the bottom of the pressure head.

[0020] A return spring 8 is installed on the horizontal moving base, and one end of the return spring is fixedly connected to the pressing rod. A pressing handle 12 is installed on the pressing rod.

[0021] An adjustment handle 17 is mounted on the rotary adjustment base. An anti-slip pad 16 is mounted on the rotary adjustment base. The anti-slip pad is a rubber pad.

[0022] like Figure 3 As shown, when using this quick-release engine lock plate tool, first insert the valve stem into the valve mounting position on the engine block and put on the spring and valve spring seat. Then place the engine block on the rotary adjustment seat, positioning the engine block with a row of positioning pins to ensure stability. Then adjust the adjustment knob and the position of the pressure rod to deflect the rotary adjustment seat back and forth, and make the valve stem to be removed and installed in the same vertical axis direction as the pressure head. Then adjust the pressure handle and press down the pressure rod. The valve stem of the pressure head passes through the valve stem through the hole and presses down the valve spring seat. At this time, the valve lock plate can be easily and effortlessly removed and installed in the lock plate mounting slot.

[0023] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A tooling for quick installation and removal of engine lock plates, comprising a worktable and a support, characterized in that, Bearing seats are provided on both sides of the workbench. A rotating shaft is rotatably connected to the bearing seats via bearings. A rotating adjustment seat is fixedly connected to the rotating shaft. Adjustment knobs are provided on the front and rear sides of the rotating adjustment seat for adjusting the deflection angle of the rotating adjustment seat in the front and rear directions. A row of positioning pins is fixedly installed on the rotating adjustment seat for positioning in conjunction with the bottom surface of the engine block. A transverse guide rail is installed on the support. A horizontal moving seat is provided on the transverse guide rail and moves horizontally along the guide rail. A guide groove is provided on the horizontal moving seat and moves vertically in the guide groove. A guide shaft is provided in the guide groove and moves along the guide groove. A pressure rod is installed on the guide shaft and a pressure head is installed at the bottom of the pressure rod. A valve stem through hole is provided at the bottom of the pressure head. The valve stem through hole is larger than the diameter of the valve stem end but smaller than the outer diameter of the valve spring seat. A locking plate mounting slot is opened on the side of the bottom of the pressure head.

2. The tooling for quick assembly and disassembly of engine lock plates according to claim 1, characterized in that, A return spring is installed on the horizontal moving base, and one end of the return spring is fixedly connected to the pressure rod.

3. The tooling for quick assembly and disassembly of engine lock plates according to claim 1, characterized in that, A pressing handle is installed on the pressing rod.

4. The tooling for quick assembly and disassembly of engine lock plates according to claim 1, characterized in that, An adjustment handle is installed on the rotary adjustment base.

5. The tooling for quick assembly and disassembly of engine lock plates according to claim 1, characterized in that, The rotary adjustment seat is equipped with an anti-slip pad.

6. The tooling for quick assembly and disassembly of engine lock plates according to claim 5, characterized in that, The anti-slip mat is a rubber mat.