Oil drainage device of hydraulic oil tank

By using threaded valves and plugs in the hydraulic oil tank, the problem of difficulty in controlling the amount of oil discharged and leakage in existing oil discharge devices is solved, achieving precise control of hydraulic oil and leakage prevention.

CN223498285UActive Publication Date: 2025-10-31HUBEI JINLI HYDRAULIC CO LTD
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Patent Information

Application Number
CN202423163600.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-10-31
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing hydraulic systems have difficulty accurately controlling the amount of oil discharged and are prone to hydraulic oil leakage, causing unnecessary losses.

Method used

Design a hydraulic oil tank draining device, wherein the valve and the oil tank are fixedly connected by threads, and the plug is connected to the valve outlet by threads. The valve is opened by unscrewing the plug to drain the oil, and the plug is resealed after the specified liquid level is reached.

Benefits of technology

It enables precise control of hydraulic oil and prevents accidental leakage, improving the reliability and safety of oil draining operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

An oil drainage device of a hydraulic oil tank comprises a plug, a valve, the oil tank and a valve group, and is characterized in that the valve is fixedly connected with the oil tank through threads, the plug is connected to the valve through threads at an outlet of the valve, when oil drainage is needed, the plug is screwed off from the valve through a wrench, then the valve is opened for oil drainage, and after the hydraulic pressure reaches a specified liquid level, the valve is opened for oil drainage. And closing the valve. The oil drainage device of the hydraulic oil tank is reasonable in design, compact in structure and convenient to operate and use.
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Description

Technical Field

[0001] This utility model relates to a hydraulic oil tank draining device. Background Technology

[0002] Each hydraulic system's hydraulic station tank is equipped with a drain device for system maintenance and cleaning. Typically, a plug or valve is installed at the lowest point of the tank. However, the biggest drawback of using a plug is the difficulty in controlling the amount of oil drained from a full tank. While a valve at the lowest point overcomes the plug's drawback, the valve handle is easily disturbed by unforeseen circumstances, potentially causing hydraulic oil to leak out and resulting in unnecessary losses. Therefore, existing drain devices have limitations and need improvement. Utility Model Content

[0003] The purpose of this invention is to design a hydraulic oil tank draining device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a hydraulic oil tank draining device, comprising: a plug 1, a valve 2, an oil tank 3, and a valve assembly 4, characterized in that: the valve 2 and the oil tank 3 are fixedly connected together by threads, and the plug 1 is threadedly connected to the valve 2 at the outlet of the valve 2. When draining oil, first use a wrench to unscrew the plug 1 from the valve 2, and then open the valve 2 to drain the oil.

[0005] The beneficial effect of this utility model is that it can easily control the flow of hydraulic oil while preventing accidental leakage of hydraulic oil from the oil tank.

[0006] The present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description

[0007] Appendix Figure 1 : A front view structural diagram of a hydraulic oil tank draining device.

[0008] Appendix Figure 2 Top view of a hydraulic oil tank draining device.

[0009] Appendix Figure 3 A schematic diagram of the principle of a hydraulic oil tank draining device.

[0010] In the attached diagram: 1—plug, 2—valve, 3—oil tank, 4—valve assembly. Detailed Implementation

[0011] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of this utility model, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this utility model.

[0012] The instruction manual includes Figure 1 and the instruction manual Figure 2 As shown: Valve 2 and oil tank 3 are fixedly connected together by threads, while ensuring reliable sealing. Plug 1 is threadedly connected to valve 2 at the outlet of valve 2, and the connection is also reliable.

[0013] The instruction manual includes Figure 3 As shown: Valve 2 is connected to oil tank 3, and plug 1 is connected to the outlet of valve 2.

[0014] The working process of a hydraulic oil tank draining device is as follows: After hydraulic oil is filled into the oil tank 3, when draining oil, first use a wrench to unscrew the plug 1 from the valve 2, then open valve 2 to drain the oil. After the hydraulic fluid reaches the specified level, close valve 2, remove any residual oil from the valve port, and then securely seal the plug 1 to valve 2. This hydraulic oil tank draining device is reasonably designed, compact in structure, and easy to operate.

Claims

1. A hydraulic oil tank draining device, comprising: The plug (1), valve (2), oil tank (3) and valve assembly (4) are characterized in that: the valve (2) and the oil tank (3) are fixedly connected together by threads, and the plug (1) is connected to the valve (2) by threads at the outlet of the valve (2).