Disassembling and assembling tool for electromagnetic valve of engine camshaft
By designing a tool for disassembling and assembling engine camshaft solenoid valves and utilizing a matching design between the connecting column and the hoist hole, the problem of difficult disassembly of BMW's solenoid valves was solved, enabling a fast and efficient disassembly and assembly process.
Patent Information
- Application Number
- CN202422495186.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In the existing technology, the disassembly of the BMW engine camshaft solenoid valve is relatively difficult, especially because it has a plastic housing and is integrated into the engine powertrain, which increases the difficulty of disassembly.
A tool for disassembling and assembling an engine camshaft solenoid valve was designed. By setting first and second connecting posts on the operating handle and matching them with the gourd holes of the solenoid valve's connecting lugs, the lever principle is used to achieve quick alignment and insertion. The distance between the connecting posts is designed to be the distance from the large hole to the small hole of the gourd hole, ensuring alignment allowance for easy force application.
This improves the efficiency of disassembly and assembly of solenoid valves, ensuring that the operating handle can be quickly aligned and fully force applied, thus enhancing disassembly and assembly efficiency.
Smart Images
Figure CN223493178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maintenance tool technology, specifically to a tool for disassembling and assembling an engine camshaft solenoid valve. Background Technology
[0002] The camshaft solenoid valve is a key component in the modern automotive engine management system. It optimizes engine performance and fuel economy by controlling the position of the intake and exhaust camshafts. The camshaft solenoid valve consists of a solenoid coil and a valve body, and is controlled by signals sent to it by the ECU (Engine Control Unit). In the automotive industry, camshaft solenoid valves are widely used, not only improving engine performance but also helping to reduce fuel consumption and emissions.
[0003] When the engine camshaft solenoid valve is damaged, the engine will not start normally, requiring disassembly and repair of the solenoid valve. The first step in disassembling the solenoid valve is to remove the valve body, which includes the valve body and valve cover. BMW has a type of engine camshaft solenoid valve with a valve cover such as... Figure 1 As shown, because the solenoid valve has a plastic housing and is integrated into the engine powertrain, it is difficult to disassemble.
[0004] Therefore, there is an urgent need to design a disassembly and assembly tool for this type of solenoid valve that is easy to disassemble and assemble. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an engine camshaft solenoid valve disassembly and assembly tool to achieve quick disassembly and assembly of the camshaft solenoid valve.
[0006] To achieve the above objectives, an engine camshaft solenoid valve disassembly and assembly tool is designed, including an operating handle. One side of the operating handle is provided with a first connecting post and a second connecting post perpendicular to the operating handle. The distance between the first connecting post and the second connecting post matches the gourd holes of the connecting lugs on both sides of the camshaft solenoid valve.
[0007] The engine camshaft solenoid valve disassembly and assembly tool provided by this utility model also includes other technical features, wherein the camshaft solenoid valve is provided with connecting ears on both sides, the connecting ears of the camshaft solenoid valve are used to rotatably connect to the engine housing, a limiting block is provided at the rear of the connecting ears of the camshaft solenoid valve in the direction of rotation, the limiting block is provided with oppositely arranged gourd holes, the larger hole of the gourd hole is located away from the center of the camshaft solenoid valve, and the distance between the first connecting post and the second connecting post is equal to the distance from the smaller hole of the first gourd hole to the larger hole of the second gourd hole.
[0008] The engine camshaft solenoid valve disassembly and assembly tool provided by this utility model also includes other technical features, wherein the first connecting post and the second connecting post are provided with spiral protruding connecting parts.
[0009] The engine camshaft solenoid valve disassembly and assembly tool provided by this utility model also includes other technical features, wherein the first connecting post and the second connecting post are disposed at the front of the operating handle.
[0010] Compared with the prior art, the advantages of this utility model are:
[0011] By setting several connecting posts on the operating handle and matching the connecting posts with the gourd holes of the solenoid valve's connecting ears, the operating handle can be quickly aligned and inserted into the holes of the solenoid valve cover. The operating handle achieves the disassembly and assembly of the solenoid valve more quickly and efficiently through the lever principle. It can be seen that the technical solution of this utility model can not only improve the quick alignment of the solenoid valve disassembly and assembly tools, but also enable the handle to apply sufficient force to the solenoid valve, effectively improving the disassembly and assembly efficiency of the engine camshaft solenoid valve. Attached Figure Description
[0012] Figure 1 This is a top view of a solenoid valve;
[0013] Figure 2 This is a side view of the control handle;
[0014] In the diagram: 1. Operating handle, 2. First connecting post, 3. Second connecting post, 4. Spacing between connecting posts, 5. Solenoid valve, 5.1. Connecting lug, 5.2. Limiting block, 5.3. First hoist hole, 5.4. Second hoist hole, 5.5. Small hole of the first hoist hole, 5.6. Large hole of the second hoist hole, 6. Connecting part. Detailed Implementation
[0015] To make the purpose, principle and structure of this utility model clearer, the following description is provided in conjunction with the accompanying drawings and specific embodiments.
[0016] See Figure 1 , 2 This utility model provides a tool for disassembling and assembling an engine camshaft solenoid valve, comprising:
[0017] The operating handle 1 includes a first connecting post 2 and a second connecting post 3 located on the same side of the operating handle and perpendicular to it. A connecting post spacing 4, with a predetermined distance between the first connecting post 2 and the second connecting post 3, is provided. The first connecting post 2 and the second connecting post 3 are also provided with spirally protruding connecting parts 6.
[0018] The upper cover of the solenoid valve 5 is symmetrically provided with connecting ears 5.1 for disassembly and assembly on both sides. A limit block 5.2 is provided at the rear of the connecting ear 5.1 in the direction of rotation. The limit block is provided with a first gourd hole 5.3 and a second gourd hole 5.4 arranged opposite to each other. The gourd hole consists of a large circular hole and a small square hole. The large hole is located on the outer side near the circumference, and the small hole is located on the inner side near the center of the circle. The large hole and the small hole are tangent to each other to form a whole gourd hole.
[0019] The disassembly and assembly of the solenoid valve 5 relies on applying pressure to the connecting ear 5.1, thereby tightening and loosening the solenoid valve 5 through rotation. Therefore, how to better apply the force for disassembly and assembly to the connecting ear 5.1 has become a key challenge in this field. The gourd-shaped hole can serve as a good point of leverage for disassembly and assembly tools, but its small inner diameter makes quick and accurate positioning difficult. Therefore, this invention makes corresponding technical improvements. The connecting post spacing 4 between the first connecting post 2 and the second connecting post 3 of the operating handle 1 is a predetermined distance, representing the distance from the larger hole of one gourd-shaped hole to the smaller hole of another. Figure 2 For example, the connecting post spacing 4 is the distance from the small hole 5.5 of the first gourd hole to the large hole 5.6 of the second gourd hole. The purpose of this setting is that if the distance between the large holes is used as the connecting post spacing 4, the operating handle 1 will be fully inserted into the gourd hole each time. If there is a slight deviation, the connecting post cannot be inserted, resulting in low alignment efficiency. If the distance between the small holes is used as the connecting post spacing 4, the connecting post also needs to be completely against the inside of the gourd hole and fully fitted to complete the insertion of the operating handle 1. The connecting post spacing 4 of this utility model allows for a certain alignment margin when the connecting post is inserted into the gourd hole. After both connecting posts are inserted, one connecting post can be tightly against the inner wall of the large hole and the other connecting post can be tightly against the inner wall of the small hole. While obtaining the alignment margin and increasing the alignment success rate of the operating handle 1, it also ensures that the operating handle 1 can fully contact the solenoid valve 5 and transmit torque, so that the assembly and disassembly of the solenoid valve 5 can be fully completed.
[0020] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and novel concept of this utility model, should be included within the protection scope of this utility model.
Claims
1. A tool for disassembling and assembling an engine camshaft solenoid valve, characterized in that... include Operating handle, One side of the operating handle is provided with a first connecting post and a second connecting post perpendicular to the operating handle. The distance between the first connecting post and the second connecting post matches the gourd holes of the connecting lugs on both sides of the camshaft solenoid valve. The gourd-shaped hole consists of a large circular hole and a small square hole. The large hole is located on the outer side near the circumference, and the small hole is located on the inner side near the center of the circle. The large hole and the small hole are tangent to each other to form a whole gourd-shaped hole. The camshaft solenoid valve is provided with connecting ears on both sides. The connecting ears of the camshaft solenoid valve are used to rotatably connect to the engine housing. A limiting block is provided at the rear of the connecting ear in the rotation direction. The limiting block is provided with oppositely arranged gourd holes. The large hole of the gourd hole is located away from the center of the camshaft solenoid valve. The distance between the first connecting post and the second connecting post is equal to the distance from the small hole of the first gourd hole to the large hole of the second gourd hole. The first and second connecting posts have an alignment allowance when inserted into the gourd hole, and when both connecting posts are inserted, one connecting post is tightly against the inner wall of the large hole and the other connecting post is tightly against the inner wall of the small hole.
2. The engine camshaft solenoid valve disassembly and assembly tool as described in claim 1, characterized in that... The first and second connecting posts are provided with spirally protruding connecting parts.
3. The engine camshaft solenoid valve disassembly and assembly tool as described in claim 1, characterized in that... The first connecting post and the second connecting post are located at the front of the operating handle.