Valve lock convenient dismounting device

By designing a convenient valve lock clamp disassembly and assembly device, and utilizing a combination of tooling pressure rod, sliding seat and magnetic block, the problem of needing to replace pressure heads of different sizes for valve lock clamps is solved, thus realizing convenient disassembly and assembly of valve lock clamps.

CN224445200UActive Publication Date: 2026-07-03GUANGXI YUCHAI MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI YUCHAI MASCH CO LTD
Filing Date
2025-06-27
Publication Date
2026-07-03

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Abstract

This application provides a convenient valve lock clamp removal and installation device, relating to the field of valve lock clamp removal and installation technology. The convenient valve lock clamp removal and installation device includes a tooling rod, a valve lock clamp, and a valve lock clamp assembly. A fixing bolt is hinged to the bottom of the tooling rod, and a sliding seat is slidably connected to it. A double-ended screw rod rotatably passes through the sliding seat, and a limit rod also passes through it. A pressure head assembly is threaded onto the double-ended screw rod. By setting the tooling rod, with the fixing bolt hinged to the bottom and threaded to the engine cylinder head, and the sliding seat slidably connected to the tooling rod, the double-ended screw rod rotatably passes through the sliding seat. Two adjusting blocks are threaded onto the double-ended screw rod, and pressure blocks are fixedly installed at the bottom of each adjusting block. This facilitates adjusting the distance between the two pressure blocks according to the valve spring diameter, thereby facilitating the pressing of the two pressure blocks onto the spring seat, exposing the valve lock clamp for easy removal and installation.
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Description

Technical Field

[0001] This application relates to the field of valve lock clip removal and installation, and more specifically, to a convenient valve lock clip removal and installation device. Background Technology

[0002] When removing and installing engine valve lock clips, a convenient manual tooling is required. When removing the valve lock clip, it is locked by the valve spring and valve spring seat. A tooling is needed to press the valve spring down to a certain extent to expose the valve lock clip before it can be removed. When installing the valve lock clip, since the valve spring seat is naturally higher than the valve lock clip installation position, the valve spring needs to be compressed to expose sufficient clearance for the valve guide rod. Existing tooling uses a pressure head to press down the valve spring seat to expose the valve rod installation area. However, for models with significantly different spring diameters, different sized pressure heads are required, making valve lock clip removal and installation inconvenient. Therefore, we propose a convenient valve lock clip removal and installation device. Utility Model Content

[0003] To overcome the shortcomings of the existing devices, this application provides a convenient valve lock clamp removal and installation device, which can solve the problem that the valve lock clamp removal and installation tooling needs to be replaced with pressure heads of different sizes.

[0004] The technical solution adopted by the embodiments of this application to solve its technical problem is: a convenient valve lock clamp disassembly and assembly device, including a tooling pressure rod, a valve lock clamp and a valve lock clamp device.

[0005] The tooling pressure rod is hinged to a fixing bolt at its bottom, and a sliding seat is slidably connected to it. A double-ended screw is rotatably passed through the sliding seat, and a limit rod is also passed through it. A pressure head assembly is threaded onto the double-ended screw. The pressure head assembly is slidably sleeved on the limit rod. The pressure head assembly presses the valve lock clamp device, and the valve lock clamp is installed inside the valve lock clamp device.

[0006] In one specific implementation, the tooling pressure rod has a through-hole, and the sliding seat is slidably disposed within the through-hole.

[0007] In one specific implementation, the sliding seat includes two limiting blocks, which slide in contact with the top and bottom of the tooling pressure rod, respectively. A sliding block is fixedly connected between the two limiting blocks, and the sliding block is slidably disposed within the through opening.

[0008] In one specific implementation, the sliding seat further includes a connecting seat, which is hinged to the lower limiting block. The double-ended screw rotates through the connecting seat, and the limiting rod passes through the connecting seat.

[0009] In one specific implementation, the pressure head assembly includes two adjusting blocks, which are threaded onto the double-ended screw and slidably mounted on the limiting rod. Each adjusting block has a pressure block fixedly installed at its bottom, and the two pressure blocks press against the valve lock clamp device.

[0010] In one specific implementation, a slide rod is slidably passed through both of the adjusting blocks, and a magnetic block is fixedly installed at one end of each of the two slide rods. The valve lock clamp consists of two semi-rings, and the two magnetic blocks respectively attract the two semi-rings.

[0011] In one specific implementation, the valve locking device includes a valve stem, a spring seat is slidably sleeved on the valve stem, an assembly groove is also provided on the outer wall of the valve stem, two semi-rings are inserted into the assembly groove, and two pressure blocks press the spring seat.

[0012] In one specific implementation, a support tube is fixedly installed at the bottom of the spring seat, the support tube is slidably sleeved on the valve stem, two semi-rings are located inside the support tube, and a valve spring is provided at the bottom of the spring seat.

[0013] The advantages of this embodiment are as follows: By setting a tooling pressure rod, a fixing bolt is hinged to the bottom of the tooling pressure rod, and the fixing bolt is threaded to the engine cylinder head. A sliding seat is slidably connected to the tooling pressure rod, and a double-ended screw is rotatably passed through the sliding seat. Two adjusting blocks are threaded on the double-ended screw, and pressure blocks are fixedly installed at the bottom of both adjusting blocks. This facilitates adjusting the distance between the two pressure blocks according to the valve spring diameter, thereby facilitating the pressing of the two pressure blocks onto the spring seat to expose the valve lock clip for easy removal and installation. By slidably passing through both adjusting blocks, a sliding rod is provided, and a magnetic block is fixedly installed at one end of each sliding rod. The magnetic block can attract the semi-ring, thereby pressing the pressure block down onto the spring seat so that the semi-ring aligns with the assembly groove. Pushing the sliding rod allows the semi-ring to be inserted into the assembly groove, thus achieving the purpose of facilitating the removal and installation of the valve lock clip. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main structure of the valve lock clip easy disassembly and assembly device provided in the embodiments of this application;

[0015] Figure 2 A schematic diagram of the pressure head assembly and valve lock clamp device structure of the valve lock clamp convenient disassembly and assembly device provided in the embodiments of this application;

[0016] Figure 3 A schematic diagram of the connection structure between the pressure rod and the fixing bolt of the valve lock clip easy disassembly and assembly device provided in the embodiments of this application;

[0017] Figure 4A schematic diagram of the spring seat pressing state structure of the valve lock clip easy disassembly and assembly device provided in the embodiments of this application;

[0018] Figure 5 A schematic diagram of the spring seat reset structure of the valve lock clip easy disassembly and assembly device provided in the embodiments of this application.

[0019] In the diagram: 10-Tooling pressure bar; 110-Through opening; 20-Fixing bolt; 30-Sliding seat; 310-Limiting block; 320-Sliding block; 330-Connecting seat; 40-Double-ended screw; 50-Pressure head assembly; 510-Adjusting block; 520-Pressure block; 530-Sliding rod; 540-Magnetic block; 60-Valve lock clamp; 70-Limiting rod; 80-Valve lock clamp device; 810-Valve rod; 820-Spring seat; 830-Assembly slot; 840-Support tube; 850-Valve spring. Detailed Implementation

[0020] The technical solution in this application embodiment is to solve the problem of needing to replace pressure heads of different sizes in the valve lock clamp disassembly and assembly tooling. The overall idea is as follows:

[0021] Example:

[0022] Please see Figure 1-5 A convenient valve lock clamp 60 assembly and disassembly device includes a tooling rod 10, a valve lock clamp 60, and a valve lock clamp device 80.

[0023] A fixing bolt 20 is hinged to the bottom of the tooling pressure rod 10. The fixing bolt 20 is connected to a threaded hole on the engine cylinder block. A sliding seat 30 is also slidably connected to the fixing bolt 20. A double-ended screw 40 is rotatably passed through the sliding seat 30. The cylindrical part of the double-ended screw 40 rotatably passes through the sliding seat 30. A limit rod 70 is also passed through the sliding seat 30. A pressure head assembly 50 is threaded on the double-ended screw 40. The pressure head assembly 50 is slidably sleeved on the limit rod 70. The limit rod 70 achieves the purpose of limiting the pressure head assembly 50, so that when the double-ended screw 40 is rotated, the pressure head assembly 50 will not rotate with the double-ended screw 40. The pressure head assembly 50 presses the valve lock clamp device 80. By pressing the tooling pressure rod 10, the tooling pressure rod 10 will press down the sliding seat 30, thereby causing the pressure head assembly 50 to press down the valve lock clamp device 80. The valve lock clamp 60 is installed in the valve lock clamp device 80.

[0024] See Figure 1 and 2The tooling pressure rod 10 has a through-hole 110. The sliding seat 30 is slidably disposed in the through-hole 110. The sliding seat 30 includes two limiting blocks 310. The two limiting blocks 310 are in sliding contact with the top and bottom of the tooling pressure rod 10, respectively. The same sliding block 320 is fixedly connected between the two limiting blocks 310. The sliding block 320 is slidably disposed in the through-hole 110. Specifically, the limiting block 310 realizes the purpose of vertically limiting the sliding block 320, so that the sliding block 320 can slide in the through-hole 110 to adjust the position of the pressure head assembly 50 so that the pressure head assembly 50 can correspond to the valve lock clamp device 80.

[0025] See Figure 2 The sliding seat 30 also includes a connecting seat 330, which is hinged to the lower limiting block 310. A double-ended screw 40 rotatably passes through the connecting seat 330, and a limiting rod 70 passes through the connecting seat 330. Rotating the double-ended screw 40 moves the pressure head assembly 50. Furthermore, the pressure head assembly 50 includes two adjusting blocks 510, which are threaded onto the double-ended screw 40. The two adjusting blocks 510 are located on both sides of the connecting seat 330, and are slidably fitted onto the limiting rod 70. Each of the two adjusting blocks 510 has a pressure block 520 fixedly installed at its bottom. The two pressure blocks 520 move downward to press down on the valve lock clamp device 80. The two pressure blocks 520 press down on the valve lock clamp device 80. Each of the two adjusting blocks 510 has a sliding rod 530 that slides through it. Each of the two sliding rods 530 has a magnetic block 540 fixedly installed at one end. The valve lock clamp 60 consists of two semi-rings. The two magnetic blocks 540 respectively attract the two semi-rings. The magnetic blocks 540 can attract the semi-rings, thus attracting the semi-rings onto the magnetic blocks 540. The two magnetic blocks 540 face each other in an arc shape.

[0026] See Figure 4 and 5 The valve lock clamp device 80 includes a valve stem 810, on which a spring seat 820 is slidably mounted. An assembly groove 830 is also provided on the outer wall of the valve stem 810. Two semi-rings are inserted into the assembly groove 830. Specifically, pushing the slide rod 530 causes the magnetic block 540 to move, which in turn drives the semi-rings to move, allowing them to be inserted into the assembly groove 830. Alternatively, bringing the magnetic block 540 closer to the semi-rings can also disengage them from the assembly groove 830. Two pressure blocks 520 press the spring seat 820. A support tube 840 is fixedly mounted at the bottom of the spring seat 820 and slidably mounted on the valve stem 810. The two semi-rings are located within the support tube 840. After the valve lock clamp 60 is inserted into the assembly groove 830, the valve lock clamp 60 limits the spring seat 820 through the support tube 840. A valve spring 850 is provided at the bottom of the spring seat 820.

[0027] When this application is used:

[0028] When assembling the valve lock clip 60, connect the valve lock clip 60 to the two magnetic blocks 540, then connect the fixing bolt 20 to the screw hole on the engine block, push the sliding seat 30 so that the two pressure blocks 520 correspond to the spring seat 820, and then press down the tooling pressure rod 10. The tooling pressure rod 10 drives the double-ended screw 40 to move downward through the sliding seat 30, and the double-ended screw 40 drives the two adjusting blocks 510 to move downward, so that the two pressure blocks 520 press down on the spring seat 820, thereby exposing the mounting groove 830 on the valve stem 810. Continue to press the spring seat 820 until the valve lock clip 60 corresponds to the mounting groove 830. Then, push the two sliding rods 530 in sequence so that the two magnetic blocks 540 drive the two half-screws. The ring is inserted into the assembly groove 830, thereby installing the valve lock clip 60 on the valve stem 810. Finally, the tooling pressure rod 10 is released, allowing the spring seat 820 to reset via the valve spring 850. The spring seat 820 moves upward and fits onto the valve lock clip 60, while the magnetic block 540 moves upward and moves away from the valve lock clip 60, thus achieving the installation of the valve lock clip 60. When removing the valve lock clip 60, the above operation is repeated, causing the pressure block 520 to press down on the spring seat 820, thereby exposing the valve lock clip 60. Then, the slide rod 530 is pushed, causing the magnetic block 540 to approach the half ring, thereby attracting the half ring. Pulling the slide rod 530 in the opposite direction, the half ring can be pulled out from the assembly groove 830 to facilitate the removal of the valve lock clip 60.

[0029] It should be noted that the specific model and specifications of the valve lock clamp device 80 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0030] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A valve keeper convenient dismounting device, characterized in that, include A tooling pressure rod (10) is hinged at the bottom with a fixing bolt (20) and a sliding seat (30) is slidably connected thereon. A double-ended screw (40) is rotatably passed through the sliding seat (30) and a limit rod (70) is also passed through it. A pressure head assembly (50) is threaded on the double-ended screw (40) and the pressure head assembly (50) is slidably sleeved on the limit rod (70). Valve lock clip (60) and valve lock clip device (80), wherein the pressure head assembly (50) presses the valve lock clip device (80), and the valve lock clip (60) is installed inside the valve lock clip device (80).

2. The valve keeper convenient dismounting device according to claim 1, characterized in that, The tooling pressure rod (10) has a through opening (110), and the sliding seat (30) is slidably disposed in the through opening (110).

3. The valve-keeper convenient dismounting device according to claim 2, characterized in that, The sliding seat (30) includes two limiting blocks (310), which slide in contact with the top and bottom of the tooling pressure rod (10) respectively. The two limiting blocks (310) are fixedly connected to the same sliding block (320), which slides within the through opening (110).

4. The valve-keeper convenient dismounting device according to claim 3, characterized in that, The sliding seat (30) also includes a connecting seat (330), which is hinged to the lower limiting block (310). The double-headed screw (40) rotates through the connecting seat (330), and the limiting rod (70) passes through the connecting seat (330).

5. The valve-keeper convenient dismounting device according to claim 1, characterized in that, The pressure head assembly (50) includes two adjusting blocks (510), which are threaded onto the double-ended screw (40) and slidably mounted on the limiting rod (70). Each of the two adjusting blocks (510) has a pressure block (520) fixedly installed at its bottom, and the two pressure blocks (520) press the valve lock clamp device (80).

6. The valve-keeper convenient dismounting device according to claim 5, characterized in that, Both adjustment blocks (510) have sliding rods (530) that slide through them. A magnetic block (540) is fixedly installed at one end of each of the two sliding rods (530). The valve lock clip (60) consists of two semi-rings, and the two magnetic blocks (540) respectively attract the two semi-rings.

7. The valve-keeper convenient dismounting device according to claim 6, characterized in that, The valve locking device (80) includes a valve stem (810), a spring seat (820) is slidably sleeved on the valve stem (810), and an assembly groove (830) is also provided on the outer wall of the valve stem (810). Two semi-rings are inserted into the assembly groove (830), and two pressure blocks (520) press the spring seat (820).

8. The valve-keeper convenient dismounting device according to claim 7, characterized in that, A support tube (840) is fixedly installed at the bottom of the spring seat (820). The support tube (840) is slidably sleeved on the valve stem (810). Two semi-rings are located inside the support tube (840). A valve spring (850) is provided at the bottom of the spring seat (820).