ELVA valve dismounting tool for low speed diesel engine

By designing a disassembly and assembly tool that includes a tool frame and uses set screws to fix the ELVA valve assembly, the problem of unstable disassembly and installation was solved, and a fast and stable ELVA valve disassembly and assembly process was achieved.

CN224323058UActive Publication Date: 2026-06-05CHINA SHIPBUILDING IND GRP DIESEL ENGINE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA SHIPBUILDING IND GRP DIESEL ENGINE CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the existing technology, the disassembly and installation of ELVA valves are subject to risks of falling due to the confined space and heavy weight, and the installation is unstable and difficult to complete quickly.

Method used

Design a disassembly and assembly tool including a tool frame, the frame consisting of a first horizontal plate, a second horizontal plate, a third horizontal plate and a first vertical plate, and fix the ELVA valve assembly by the first to fourth set screws, and use the arc structure to avoid damage and achieve stable disassembly and assembly.

Benefits of technology

This enables quick assembly and disassembly of ELVA valves, ensuring stability during the assembly and disassembly process, preventing them from falling, and improving installation reliability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224323058U_ABST
    Figure CN224323058U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of marine low-speed diesel engine ELVA valve dismounting tools, belong to marine low-speed diesel engine technical field, including tool frame, the tool frame includes first cross plate, second cross plate, third cross plate and first vertical plate, one end of the first cross plate is set second cross plate, other end is set third cross plate;The both ends of the first cross plate are set first vertical plate;First top silk is set on the first cross plate, second top silk is set on the third cross plate;Third top silk and fourth top silk are set on the first vertical plate. The quick dismounting of ELVA valve can be realized, the stability when guaranteeing dismounting is guaranteed, avoid the situation that ELVA valve appears to drop, and then guarantee installation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of marine low-speed diesel engines, specifically relating to a tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] The ELVA valve for marine low-speed diesel engines is an electrically controlled two-position valve used to control the flow of hydraulic oil into the exhaust valve actuator to open the exhaust valve. It typically has a solenoid valve structure, consisting of a solenoid coil, valve core, and valve seat. When the solenoid coil is energized, it generates a magnetic field that attracts the valve core, changing the valve's on / off state.

[0004] With prolonged use, ELVA valves require regular maintenance. Abnormal situations may also occur, necessitating disassembly. Due to the confined installation space and significant weight of the ELVA valve, the valve body is prone to falling during disassembly, potentially injuring workers or damaging the valve itself. Furthermore, during installation, the valve often wobbles and becomes unstable, making quick installation difficult and increasing the risk of it falling. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine. This tool enables rapid disassembly and assembly of the ELVA valve, ensuring stability during disassembly and assembly, preventing the ELVA valve from falling off, and thus guaranteeing installation safety.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tool for disassembling and assembling an ELVA valve for a marine low-speed diesel engine includes a tool frame. The tool frame includes a first horizontal plate, a second horizontal plate, a third horizontal plate, and a first vertical plate. The second horizontal plate is provided at one end of the first horizontal plate, and the third horizontal plate is provided at the other end. The first vertical plate is provided at both ends of the first horizontal plate. A first set screw is provided on the first horizontal plate, and a second set screw is provided on the third horizontal plate. A third set screw and a fourth set screw are provided on the first vertical plate.

[0008] Furthermore, handles are provided at both ends of the first set screw, and the handles are fixedly connected to the third cross plate.

[0009] Furthermore, the first horizontal plate is provided with a threaded hole, and the first set screw is screwed into the threaded hole on the first horizontal plate, so that the first set screw and the first horizontal plate are threadedly connected.

[0010] Furthermore, the third horizontal plate is provided with a threaded hole, and the second set screw is screwed into the threaded hole on the third horizontal plate, so that the second set screw and the third horizontal plate are threadedly connected.

[0011] Furthermore, the first vertical plate is provided with several threaded holes, and the third and fourth set screws are screwed into the threaded holes on the first vertical plate.

[0012] Furthermore, the first vertical plate and the third set screw are threaded together, and the first vertical plate and the fourth set screw are threaded together.

[0013] Furthermore, the ends of the first, second, third, and fourth setter wires are all arc-shaped structures.

[0014] Furthermore, the two ends of the first horizontal plate are fixedly connected to the first vertical plate.

[0015] Furthermore, the two ends of the second horizontal plate are fixedly connected to the first vertical plate.

[0016] Furthermore, the two ends of the third horizontal plate are fixedly connected to the first vertical plate.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are:

[0018] This utility model uses a tool frame composed of a first horizontal plate, a second horizontal plate, a third horizontal plate, and a first vertical plate. During disassembly, the ELVA valve assembly is placed in the tool frame, and then the first, second, third, and fourth setter screws are tightened to hold the side of the ELVA valve assembly in place. The ELVA valve mounting screws on the ELVA valve assembly are then unscrewed, and the ELVA valve assembly can be removed by lifting the handle. During installation, the ELVA valve assembly is placed in the tool frame, and the first, second, third, and fourth setter screws are tightened... Using the first, second, third, and fourth setter screws, lift the handle to move the ELVA valve assembly to the installation position. Adjust the positions of the first to fourth setter screws so that the threaded holes on the ELVA valve assembly are aligned with the threaded holes on the installation position. Screw in the ELVA valve mounting screws, then loosen the first to fourth setter screws. Remove the tool frame to complete the installation of the ELVA valve assembly. This allows for quick assembly and disassembly of the ELVA valve, ensuring stability during assembly and disassembly, preventing the ELVA valve from falling, and thus guaranteeing installation safety. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1This is a structural diagram of the ELVA valve disassembly and assembly tool for marine low-speed diesel engines according to this utility model;

[0021] Figure 2 This is a schematic diagram illustrating the usage of the ELVA valve disassembly and assembly tool for marine low-speed diesel engines according to this utility model. Figure 1 ;

[0022] Figure 3 This is a schematic diagram illustrating the usage of the ELVA valve disassembly and assembly tool for marine low-speed diesel engines according to this utility model. Figure 2 ;

[0023] In the diagram: 1. First horizontal plate; 2. Second horizontal plate; 3. First vertical plate; 4. First set screw; 5. Second set screw; 6. Third set screw; 7. Fourth set screw; 8. Third horizontal plate; 9. Handle; 10. ELVA valve assembly; 11. ELVA valve mounting screw. Detailed Implementation

[0024] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] With prolonged use, ELVA valves require regular maintenance. Abnormal situations may also occur, necessitating disassembly. Due to the confined installation space and significant weight of the ELVA valve, the valve body is prone to falling during disassembly, potentially injuring workers or damaging the valve itself. Furthermore, during installation, the valve often wobbles and becomes unstable, making quick installation difficult and increasing the risk of it falling.

[0026] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine, such as... Figure 1 As shown, the tool frame includes a first horizontal plate 1, a second horizontal plate 2, a third horizontal plate 8, and a first vertical plate 3. The second horizontal plate 2 is set at one end of the first horizontal plate 1, and the third horizontal plate 8 is set at the other end. The first vertical plate 3 is set at both ends of the first horizontal plate 1. A first set screw 4 is set on the first horizontal plate 1, and a second set screw 5 is set on the third horizontal plate 8. A third set screw 6 and a fourth set screw 7 are set on the first vertical plate 3.

[0027] like Figure 2 and Figure 3As shown, a tool frame is formed by the first horizontal plate 1, the second horizontal plate 2, the third horizontal plate 8 and the first vertical plate 3. The ELVA valve assembly 10 is placed in the tool frame, and then the ELVA valve assembly 10 is tightened by the first set screw 4, the second set screw 5, the third set screw 6 and the fourth set screw 7, so that the ELVA valve assembly 10 can be installed or removed.

[0028] Handles 9 are provided at both ends of the first set screw 4, and the handles 9 are fixedly connected to the third cross plate 8. Specifically, the handles 9 are used to move the tool frame, put the tool frame on the ELVA valve assembly 10, and after the first to fourth set screws 7 are tightened, move the ELVA valve assembly 10 to the installation position.

[0029] like Figure 2 As shown, the first horizontal plate 1 has threaded holes, and the first set screw 4 is screwed into the threaded holes on the first horizontal plate 1, forming a threaded connection between the first set screw 4 and the first horizontal plate 1. The third horizontal plate 8 has threaded holes, and the second set screw 5 is screwed into the threaded holes on the third horizontal plate 8, forming a threaded connection between the second set screw 5 and the third horizontal plate 8. The first vertical plate 3 has several threaded holes, and the third set screw 6 and the fourth set screw 7 are screwed into the threaded holes on the first vertical plate 3. The first vertical plate 3 and the third set screw 6 are threaded together, and the first vertical plate 3 and the fourth set screw 7 are also threaded together.

[0030] Specifically, by turning the first set screw 4, the lower side of the ELVA valve assembly 10 can be held in place; by turning the second set screw 5, the upper side of the ELVA valve assembly 10 can be held in place; and by turning the third set screw 6 and the fourth set screw 7, the left and right sides of the ELVA valve assembly 10 can be held in place. This allows the ELVA valve assembly 10 to be held in place from multiple positions, ensuring stability when disassembling and assembling the ELVA valve assembly 10.

[0031] Specifically, the first to fourth set screws 7 are existing structures. The first to fourth set screws 7 are screws used to fix and adjust the position of mechanical parts. They are usually screwed into the body or parts of the equipment by threads. Their ends can press against other parts to play the role of fixing, positioning or fine adjustment.

[0032] The ends of the first setter 4, the second setter 5, the third setter 6, and the fourth setter 7 are all arc-shaped.

[0033] Specifically, setting the ends of the first set screw 4, the second set screw 5, the third set screw 6, and the fourth set screw 7 to an arc-shaped structure can prevent damage to the surface of the ELVA valve assembly 10 when it is pressed against the ELVA valve assembly 10, and at the same time can effectively press the ELVA valve assembly 10 against the ELVA valve assembly 10.

[0034] The two ends of the first horizontal plate 1 are fixedly connected to the first vertical plate 3. The two ends of the second horizontal plate 2 are fixedly connected to the first vertical plate 3. The two ends of the third horizontal plate 8 are fixedly connected to the first vertical plate 3.

[0035] Specifically, one first horizontal plate 1, one second horizontal plate 2, and one third horizontal plate 8 are provided, and two first vertical plates 3 are provided. The first horizontal plate 1, the second horizontal plate 2, the third horizontal plate 8, and the first vertical plate 3 can be connected by welding. A threaded hole is provided in the middle of the first horizontal plate 1 for installing the first set screw 4, and a threaded hole is provided in the middle of the third horizontal plate 8 for installing the second set screw 5. Two threaded holes are provided on the first vertical plate 3 for installing the third set screw 6 and the fourth set screw 7, and two of each of the third set screw 6 and the fourth set screw 7 are provided.

[0036] Instructions for using the ELVA valve disassembly and assembly tools for marine low-speed diesel engines:

[0037] During disassembly, place the ELVA valve assembly 10 in the tool frame, then tighten the first set screw 4, the second set screw 5, the third set screw 6 and the fourth set screw 7 to hold the side of the ELVA valve assembly 10 in place. Then unscrew the ELVA valve mounting screw 11 on the ELVA valve assembly 10. The ELVA valve assembly 10 can be removed by lifting the handle 9, thus disassembling the ELVA valve assembly 10.

[0038] During installation, place the ELVA valve assembly 10 in the tool frame, tighten the first set screw 4, the second set screw 5, the third set screw 6, and the fourth set screw 7, lift the handle 9, and move the ELVA valve assembly 10 to the installation position. Adjust the positions of the first to fourth set screws 7 so that the threaded holes on the ELVA valve assembly 10 are aligned with the threaded holes at the installation position. Screw in the ELVA valve mounting screw 11, then loosen the first to fourth set screws 7. Remove the tool frame to complete the installation of the ELVA valve assembly 10. This achieves quick assembly and disassembly of the ELVA valve, ensuring stability during assembly and disassembly, preventing the ELVA valve from falling, and thus ensuring installation safety.

[0039] Specifically, there are different situations when adjusting the positions of the first to fourth set screws. When the ELVA valve assembly 10 is positioned to the left or right, the third set screw 6 and the fourth set screw 7 at one end can be further screwed in, while the third set screw 6 and the fourth set screw 7 at the other end can be gradually unscrewed, thereby moving the ELVA valve assembly 10 to the left or right. When the ELVA valve assembly 10 is positioned to the up or down, the first set screw 4 can be further screwed in, while the second set screw 8 can be gradually unscrewed, thereby adjusting the ELVA valve assembly upwards. By further screwing in the second set screw 8 and gradually unscrewing the first set screw 4, the ELVA valve assembly 10 can be adjusted downwards. This achieves the position adjustment of the ELVA valve assembly 10, facilitating its quick installation.

[0040] Specifically, after the ELVA valve assembly 10 is held in place, one operator can hold the handle 9 and another can hold the second horizontal plate 2 to lift the tool frame and move the held ELVA valve assembly 10 to the required position.

[0041] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine, characterized in that, The tool frame includes a first horizontal plate, a second horizontal plate, a third horizontal plate, and a first vertical plate. The second horizontal plate is provided at one end of the first horizontal plate, and the third horizontal plate is provided at the other end. The first vertical plate is provided at both ends of the first horizontal plate. A first set screw is provided on the first horizontal plate, and a second set screw is provided on the third horizontal plate; a third set screw and a fourth set screw are provided on the first vertical plate.

2. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 1, characterized in that, Handles are provided at both ends of the first set screw, and the handles are fixedly connected to the third cross plate.

3. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 1, characterized in that, The first horizontal plate is provided with a threaded hole, and the first set screw is screwed into the threaded hole on the first horizontal plate. The first set screw and the first horizontal plate are connected by a thread.

4. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 1, characterized in that, The third horizontal plate is provided with a threaded hole, and the second set screw is screwed into the threaded hole on the third horizontal plate. The second set screw and the third horizontal plate are connected by a thread.

5. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 1, characterized in that, The first vertical plate is provided with several threaded holes, and the third and fourth set screws are screwed into the threaded holes on the first vertical plate.

6. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 5, characterized in that, The first vertical plate and the third set screw are threaded together, and the first vertical plate and the fourth set screw are threaded together.

7. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 1, characterized in that, The ends of the first, second, third, and fourth setter screws are all arc-shaped.

8. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 1, characterized in that, The two ends of the first horizontal plate are fixedly connected to the first vertical plate.

9. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 1, characterized in that, The two ends of the second horizontal plate are fixedly connected to the first vertical plate.

10. The tool for disassembling and assembling the ELVA valve of a marine low-speed diesel engine as described in claim 1, characterized in that, The two ends of the third horizontal plate are fixedly connected to the first vertical plate.