Valve bonnet oil discharge device based on engine valve

By designing an automated oil draining mechanism, the problems of difficult operation and safety hazards of existing engine valve cap oil draining devices have been solved, realizing convenient and safe automatic oil draining operation.

CN223825077UActive Publication Date: 2026-01-23WUJIANG JINMING MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520759301.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-01-23
Estimated Expiration
2035-04-22

AI Technical Summary

Technical Problem

The existing engine valve cap oil drain device requires manual operation, which is difficult to operate and poses safety hazards, especially in confined spaces or high-temperature environments, where it can easily burn workers.

Method used

An oil discharge mechanism was designed, comprising an oil drain hole, a transmission pipe, a control pump, an oil collection cylinder, an observation window, a positioning threaded hole, a positioning frame, a filter screen, and a connecting positioning frame. This mechanism enables automated oil discharge, extracts waste oil through the transmission pipe and the control pump, and allows observation of the internal conditions through the observation window.

Benefits of technology

It eliminates the need for manual operation, improving ease of use and safety, avoiding the risk of burns from hot oil, and enabling safe oil drainage while the engine is running.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223825077U_ABST
    Figure CN223825077U_ABST
Patent Text Reader

Abstract

The utility model discloses a bonnet oil discharge device based on an engine valve, which comprises an engine bonnet and an oil discharge mechanism, a valve is positioned and mounted at the upper end of the engine bonnet, and the oil discharge mechanism is positioned and mounted on the outer wall of the engine bonnet. The oil discharging mechanism comprises an oil discharging hole, a conveying pipe, a control pump, an oil collecting barrel, an observation perspective window, a first positioning threaded hole, a second positioning threaded hole, a positioning frame, a filter screen and a connecting positioning frame. According to the valve bonnet oil discharge device based on the engine valve, the oil discharge mechanism is arranged, automatic control can be achieved, manual operation of workers is not needed, operation convenience is greatly improved, oil discharge operation can be rapidly and accurately completed, time and manpower needed by manual operation are reduced, working efficiency is improved, and meanwhile the valve bonnet oil discharge device based on the engine valve is suitable for large-scale popularization and application. Oil drainage operation can be safely carried out in the running state of the engine, the risk that high-temperature engine oil scalds workers is avoided, and operation safety is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of valve cap oil drainage, specifically a valve cap oil drainage device based on an engine valve. Background Technology

[0002] The valve cap is an important component of the engine valve system. Its main function is to protect the valve stem and valve spring, preventing dust, oil, and other impurities from entering the valve. It also helps with valve sealing and heat dissipation. The valve cap is usually installed on the top of the valve stem and is fixed by threads or clips. It can reduce the friction between the valve stem and valve guide during valve opening and closing, extending the valve's service life. In addition, the valve cap can help the valve spring maintain the correct installation position, ensuring that the valve can close accurately, thereby ensuring the normal operation of the engine.

[0003] Common engine valve cap drain devices typically require manual operation to drain oil or exhaust gases. This necessitates direct contact between the operator and the device, making operation particularly difficult in confined spaces or inconvenient locations. Furthermore, the temperature of the oil or exhaust gases can be extremely high, posing a risk of burns to operators during manual operation and negatively impacting user experience. Therefore, we propose an engine valve cap drain device. Utility Model Content

[0004] Technical problem to be solved: In view of the shortcomings of the prior art, this utility model provides a valve cap oil draining device based on an engine valve, which has the advantages of convenient operation, improved safety and efficiency, and can effectively solve the problems in the background art.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a valve cap oil draining device based on an engine valve, comprising an engine valve cap and an oil draining mechanism, wherein a valve is positioned and installed on the upper end of the engine valve cap, and an oil draining mechanism is positioned and installed on the outer wall of the engine valve cap, wherein the oil draining mechanism comprises an oil drain hole, a transmission pipe, a control pump, an oil collection cylinder, an observation window, a first positioning threaded hole, a second positioning threaded hole, a positioning frame, a filter screen, and a connecting positioning frame.

[0006] Preferably, the drain hole is located on the outer wall of one side of the engine valve cap, and the transmission pipe is located between the drain hole and the control pump.

[0007] Preferably, the observation window is located on the inner wall of the oil collecting cylinder, the first positioning threaded hole is opened at the upper end of the inner wall of the oil collecting cylinder, and the second positioning threaded hole is opened on the inner wall of the oil collecting cylinder and located at the lower end of the first positioning threaded hole.

[0008] Preferably, the filter screen is located on the inner wall of the positioning frame, the positioning frame is located at the upper end of the oil collecting cylinder, and the connecting positioning frame is located at the upper end of the oil collecting cylinder.

[0009] Preferably, one end of the transmission pipe passes through the inside of the oil drain hole and is fixed, the other end of the transmission pipe is fixedly connected to the upper end of the control pump, the lower end of the control pump is fixedly connected to the upper end of the connecting positioning frame, and the observation window is embedded in the inner wall of the oil collecting cylinder and fixed.

[0010] Preferably, the positioning frame and the filter screen are integrally formed, the positioning frame is positioned inside the oil collecting cylinder through the No. 2 positioning threaded hole, and the lower end of the connecting positioning frame is positioned at the upper end of the oil collecting cylinder through the No. 1 positioning threaded hole.

[0011] Beneficial Effects: Compared with the prior art, this utility model provides a valve cap oil draining device based on an engine valve, which has the following beneficial effects: This valve cap oil draining device based on an engine valve, through a set oil draining mechanism, has one end of a transmission pipe that penetrates the inner wall of the oil drain hole and is fixed, and the other end of the transmission pipe is connected to a control pump. The lower end of the control pump is fixed to the upper end of a connecting positioning frame. The positioning frame is positioned inside the oil collecting cylinder through a second positioning threaded hole. A filter screen on the inner wall of the positioning frame can play a filtering role. The lower end of the connecting positioning frame is positioned at the upper end of the oil collecting cylinder through a first positioning threaded hole. The valve can control the opening and closing, and the control pump can provide suction to draw the waste oil inside the engine valve cap through the transmission pipe to the inner side of the oil collecting cylinder. The observation window is embedded in the inner wall of the oil collecting cylinder, allowing observation of the internal condition of the oil collecting cylinder. Automatic control can be achieved without manual operation by the operator, greatly improving the convenience of operation. At the same time, the oil draining operation can be safely performed while the engine is running, avoiding the risk of burns to the operator from high-temperature engine oil and improving the safety of operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a valve cap oil draining device based on an engine valve according to the present invention.

[0013] Figure 2 This is a partial structural diagram of the engine valve cap and oil draining mechanism in the valve cap oil draining device based on the engine valve of this utility model.

[0014] Figure 3 This is a partial structural diagram of the oil draining mechanism in the valve cap oil draining device based on an engine valve according to this utility model.

[0015] Figure 4 This is a partial exploded view of the oil draining mechanism in the valve cap oil draining device based on an engine valve according to this utility model.

[0016] In the diagram: 1. Engine valve cap; 2. Valve; 3. Oil drain mechanism; 301. Oil drain hole; 302. Transmission pipe; 303. Control pump; 304. Oil collection cylinder; 305. Observation window; 306. No. 1 positioning threaded hole; 307. No. 2 positioning threaded hole; 308. Positioning frame; 309. Filter screen; 310. Connecting positioning bracket. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figure 1-4 As shown, an oil draining device based on an engine valve cap includes an engine valve cap 1 and an oil draining mechanism 3. A valve 2 is positioned and installed on the upper end of the engine valve cap 1, and an oil draining mechanism 3 is positioned and installed on the outer wall of the engine valve cap 1. The oil draining mechanism 3 includes an oil drain hole 301, a transmission pipe 302, a control pump 303, an oil collection cylinder 304, an observation window 305, a first positioning threaded hole 306, a second positioning threaded hole 307, a positioning frame 308, a filter screen 309, and a connecting positioning bracket 310. It can realize automatic control without the need for manual operation by the staff, which greatly improves the convenience of operation.

[0019] Furthermore, the oil drain hole 301 is located on the outer wall of one side of the engine valve cap 1, and the transmission pipe 302 is located between the oil drain hole 301 and the control pump 303, serving as a connection and transmission device.

[0020] Furthermore, the observation window 305 is located on the inner wall of the oil collecting cylinder 304. The first positioning threaded hole 306 is opened at the upper end of the inner wall of the oil collecting cylinder 304, and the second positioning threaded hole 307 is opened on the inner wall of the oil collecting cylinder 304 and located at the lower end of the first positioning threaded hole 306. The second positioning threaded hole 307 is adapted to the outer wall of the positioning frame 308.

[0021] Furthermore, the filter screen 309 is located on the inner wall of the positioning frame 308, the positioning frame 308 is located at the upper end inside the oil collecting cylinder 304, and the connecting positioning frame 310 is located at the upper end of the oil collecting cylinder 304, serving as a connecting and positioning function.

[0022] Furthermore, one end of the transmission pipe 302 passes through the inside of the oil drain hole 301 and is fixed, the other end of the transmission pipe 302 is fixedly connected to the upper end of the control pump 303, the lower end of the control pump 303 is fixedly connected to the upper end of the connecting positioning frame 310, and the observation window 305 is embedded in the inner wall of the oil collecting cylinder 304 and fixed. The internal condition of the oil collecting cylinder 304 can be seen through the observation window 305.

[0023] Furthermore, the positioning frame 308 and the filter screen 309 are integrally formed. The positioning frame 308 is positioned inside the oil collecting cylinder 304 through the second positioning threaded hole 307. The lower end of the connecting positioning bracket 310 is positioned at the upper end of the oil collecting cylinder 304 through the first positioning threaded hole 306, which strengthens the firmness and facilitates subsequent disassembly and assembly.

[0024] Working Principle: An oil draining device based on an engine valve cap includes an engine valve cap 1, a valve 2, and an oil draining mechanism 3. The valve 2 controls the opening and closing of the engine valve cap 1. Through the oil draining mechanism 3, one end of the transmission pipe 302 passes through the inner wall of the oil drain hole 301 and is fixed. The other end of the transmission pipe 302 is connected to a control pump 303. The lower end of the control pump 303 is fixed to the upper end of the connecting positioning frame 310. The positioning frame 308 is positioned inside the oil collecting cylinder 304 through the second positioning threaded hole 307. The filter screen 309 on the inner wall of the positioning frame 308 can play a filtering role. The lower end of the frame 310 is positioned at the upper end of the oil collection cylinder 304 through the No. 1 positioning threaded hole 306. The valve 2 can control its opening and closing, and the control pump 303 can provide suction to draw the waste oil inside the engine valve cap 1 through the transmission pipe 302 to the inside of the oil collection cylinder 304. The observation window 305 is embedded in the inner wall of the oil collection cylinder 304, allowing observation of the internal condition of the oil collection cylinder 304. Automatic control can be achieved without manual operation by the staff, greatly improving the convenience of operation. At the same time, the oil draining operation can be safely performed while the engine is running, avoiding the risk of burns to the staff from the high temperature oil and improving the safety of operation.

[0025] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve cap oil draining device based on an engine valve, comprising an engine valve cap (1) and an oil draining mechanism (3), characterized in that: A valve (2) is positioned and installed on the upper end of the engine valve cap (1), and an oil discharge mechanism (3) is positioned and installed on the outer wall of the engine valve cap (1). The oil discharge mechanism (3) includes an oil discharge hole (301), a transmission pipe (302), a control pump (303), an oil collection cylinder (304), an observation window (305), a first positioning threaded hole (306), a second positioning threaded hole (307), a positioning frame (308), a filter screen (309), and a connecting positioning bracket (310). The drain hole (301) is located on the outer wall of the engine valve cap (1) and the transmission pipe (302) is located between the drain hole (301) and the control pump (303). The observation window (305) is located on the inner wall of the oil collecting cylinder (304), the first positioning threaded hole (306) is opened at the upper end of the inner wall of the oil collecting cylinder (304), and the second positioning threaded hole (307) is opened on the inner wall of the oil collecting cylinder (304) and located at the lower end of the first positioning threaded hole (306). The filter screen (309) is located on the inner wall of the positioning frame (308), the positioning frame (308) is located at the upper end inside the oil collecting cylinder (304), and the connecting positioning frame (310) is located at the upper end of the oil collecting cylinder (304). One end of the transmission pipe (302) passes through the inside of the oil drain hole (301) and is fixed. The other end of the transmission pipe (302) is fixedly connected to the upper end of the control pump (303). The lower end of the control pump (303) is fixedly connected to the upper end of the connecting positioning frame (310). The observation window (305) is embedded in the inner wall of the oil collecting cylinder (304) and is fixed. The positioning frame (308) and the filter screen (309) are integrally formed. The positioning frame (308) is positioned inside the oil collecting cylinder (304) through the second positioning threaded hole (307). The lower end of the connecting positioning bracket (310) is positioned at the upper end of the oil collecting cylinder (304) through the first positioning threaded hole (306).