Manual oil tank change-over valve

Abstract

The utility model relates to the field of oil tank change-over valves, and discloses a manual oil tank change-over valve which comprises a valve body, a control rod is arranged at the middle end of the valve body, a handle is fixedly connected to the outer wall of the left end of the control rod, a first steel ball is fixedly connected to the right end of the control rod, and a connecting rod is fixedly connected to the right end of the first steel ball. The right end of the connecting rod is fixedly connected with a second steel ball, valve ports are formed in the front end and the rear end of the valve body correspondingly, and the inner wall of the valve port located at the front end is in threaded connection with a connector. According to the utility model, the two rubber sealing elements are arranged in the control rod and the connecting rod assembly, so that the technical problems of poor matching and sealing effect between the inner hole of the valve body and the outer diameter of the connecting rod and easy oil leakage in the prior art can be thoroughly solved, the stability and reliability during the conversion of the main oil tank and the auxiliary oil tank are ensured, and the normal starting of a vehicle under a low-temperature condition is ensured; the anti-attrition ring is installed on the outer wall of the control rod, so that abrasion loss and conversion torque occurring in the using process can be reduced, and the service life of the control rod is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank switching valves, and more particularly to manual fuel tank switching valves. Background Technology

[0002] A manual fuel tank switching valve is a mechanical device used to switch the fuel supply source of a vehicle or equipment. It is usually installed in a multi-tank system. Through manual operation, the user can choose to supply fuel from the main tank or the auxiliary tank, ensuring the continuity and flexibility of fuel supply. The valve has a simple structure and is easy to operate. It is suitable for occasions such as trucks and ships that require multi-tank management. The main and auxiliary tank switching valve is usually used to control the vehicle's fuel circuit. When the vehicle cannot start with No. 0 diesel fuel in low temperature conditions, it is necessary to switch the fuel circuit to the low temperature resistant fuel tank through the main and auxiliary tank switching valve to ensure that the car can start, drive and continue driving normally.

[0003] After prolonged use, the existing oil tank switching valve suffers from poor sealing between the valve body's inner bore and the connecting rod's outer diameter, leading to oil leakage. Furthermore, the control rod of the existing valve body wears down after long-term use, reducing the switching torque and significantly shortening its service life. To address these technical problems, this application proposes a manual oil tank switching valve. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a manual fuel tank switching valve. By incorporating two rubber seals in the control lever and connecting rod assembly, this valve completely eliminates the technical problem of poor sealing between the valve body's inner bore and the connecting rod's outer diameter, which easily leads to oil leakage. This ensures stable and reliable switching between the main and auxiliary fuel tanks and guarantees normal vehicle starting in low-temperature conditions. Furthermore, by installing a friction-reducing ring on the outer wall of the control lever, wear and tear and switching torque during use are reduced, increasing its service life. Finally, the use of a joint sealing ring ensures a tight seal between the valve body and the fuel tank.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A manual fuel tank switching valve includes a valve body, a control lever located at the middle of the valve body, a handle fixedly connected to the outer wall of the left end of the control lever, a steel ball one fixedly connected to the right end of the control lever, a connecting rod fixedly connected to the right end of the steel ball one, a steel ball two fixedly connected to the right end of the connecting rod, and valve ports located at both the front and rear ends of the valve body, with a connector threadedly connected to the inner wall of the valve port located at the front end.

[0007] Furthermore, a joint sealing ring is provided on the adjacent side of the joint and the valve body.

[0008] Furthermore, both the control rod and the connecting rod have two control rod sealing rings on their outer walls.

[0009] Furthermore, a friction-reducing ring is provided on the outer wall of the right end of the control rod.

[0010] Furthermore, a positioning pin is fixedly connected to the left outer wall of the valve body, and the positioning pin is used to limit the handle.

[0011] Furthermore, a handle sleeve is provided on the outer wall of the handle.

[0012] Furthermore, sealing gaskets are provided at both ends of the first and second steel balls.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the two rubber seals set in the control rod and connecting rod assembly can completely eliminate the technical problem of poor sealing effect between the inner hole of the valve body and the outer diameter of the connecting rod in the prior art, which easily causes oil leakage, ensuring stable and reliable switching between the main and auxiliary oil tanks and ensuring normal starting of the vehicle in low temperature conditions.

[0015] 2. In this utility model, by installing a wear-reducing ring on the outer wall of the control rod, the wear and loss and conversion torque during use can be reduced, thereby increasing its service life. Furthermore, by setting a joint sealing ring, the sealing performance of the connection between the valve body and the oil tank can be guaranteed. Attached Figure Description

[0016] Figure 1 This is a perspective view of the manual oil tank switching valve proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning pin of the manual oil tank switching valve proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the connector of the manual oil tank switching valve proposed in this utility model.

[0019] Legend:

[0020] 1. Control lever; 2. Handle; 3. Positioning pin; 4. Anti-friction ring; 5. Steel ball one; 6. Valve body; 7. Connecting rod; 8. Connector; 9. Connector sealing ring; 10. Sealing gasket; 11. Steel ball two; 12. Control lever sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-3 This utility model provides an embodiment of a manual fuel tank switching valve, including a valve body 6. A control lever 1 is provided at the middle of the valve body 6. A handle 2 is fixedly connected to the outer wall of the left end of the control lever 1. Rotating the handle 2 can rotate the control lever 1. A steel ball 5 is fixedly connected to the right end of the control lever 1. When the control lever 1 rotates, it can rotate the steel ball 5. A connecting rod 7 is fixedly connected to the right end of the steel ball 5. The steel ball 5 then rotates the steel ball 11 through the connecting rod 7. The steel ball 11 is fixedly connected to the right end of the connecting rod 7. Valve ports are provided at both the front and rear ends of the valve body 6. A connector 8 is threadedly connected to the inner wall of the valve port at the front end. The connector 8 is used to connect to the fuel tank.

[0023] Reference Figure 1-3 The connector 8 and valve body 6 are fitted with a connector sealing ring 9 on their adjacent sides to ensure a tight seal between them. Two control rod sealing rings 12 are provided on the outer walls of both the control rod 1 and the connecting rod 7 to ensure a tight seal between the control rod 1 and the valve body 6 during rotation. A friction-reducing ring 4 is provided on the right outer wall of the control rod 1 to reduce wear and tear and torque during use, thus increasing its service life. A positioning pin 3 is fixedly connected to the left outer wall of the valve body 6, with one pin above the control rod 1 and the other in front, used to limit the movement of the handle 2. A handle sleeve is provided on the outer wall of the handle 2. Sealing washers 10 are provided at both ends of steel balls 5 and 11 to ensure a tight seal during rotation.

[0024] Working principle: First, the valve body 6 is sealed and fixed to steel balls 11 and 5 through sealing gaskets 10. When the main and auxiliary oil tanks need to be switched, the handle 2 is turned to drive the control rod 1 and connecting rod 7 to control steel balls 11 and 5 to rotate 90° simultaneously, thus achieving manual switching between the main and auxiliary oil tanks. The rotation distance is controlled by the positioning pin 3. The two control rod sealing rings 12 on the control rod 1 and connecting rod 7 ensure the sealing during rotation. Steel balls 11 and 5 are equipped with sealing gaskets 10 on both the top and bottom to ensure sealing. When installing the connector 8, the sealing ring 9 is installed first, and then the connector 8 is screwed on. After the connector 8 is assembled and tightened, the sealing ring 9 is installed first. The sealing gasket 10 is compressed to form a seal between the sealing gasket 10 and the first and second steel balls 11 and 5. By setting the anti-friction ring 4 on the outer wall of the control rod 1, the wear and tear and switching torque during use can be reduced, and its service life can be increased. The two rubber seals set on the outer walls of the control rod 1 and the connecting rod 7 can completely eliminate the technical problem of poor sealing effect between the inner hole of the valve body 6 and the outer diameter of the connecting rod 1, which easily causes oil leakage. This ensures stable and reliable switching between the main and auxiliary oil tanks and ensures normal starting of the vehicle in low temperature conditions. When the handle 2 is in the vertical position after the valve body 6 is filled with oil, it supplies oil to the main oil tank. When the handle 2 is in the horizontal position, it supplies oil to the auxiliary oil tank.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hand operated tank changeover valve characterised in that, Including the valve body (6), the middle end of valve body (6) is provided with control rod (1), the left end outer wall of control rod (1) is fixedly connected with handle (2), the right end of control rod (1) is fixedly connected with steel ball one (5), the right end of steel ball one (5) is fixedly connected with connecting rod (7), the right end of connecting rod (7) is fixedly connected with steel ball two (11), the front and rear ends of valve body (6) are provided with valve port, the inner wall of valve port located in front end is threadedly connected with joint (8); The similar side of joint (8) and valve body (6) is provided with joint sealing ring (9), the outer wall of control rod (1) and connecting rod (7) is provided with two control rod sealing rings (12).

2. The manual tank selector valve of claim 1, wherein: The right end outer wall of control rod (1) is provided with wear ring (4).

3. The hand operated tank selector valve of claim 1 wherein: The left side outer wall of valve body (6) is fixedly connected with positioning pin (3), and the positioning pin (3) is used for limiting handle (2).

4. The manual tank selector valve of claim 1, wherein: The outer wall of handle (2) is provided with a handle sleeve.

5. The hand operated tank selector valve of claim 1 wherein: The left and right ends of steel ball one (5) and steel ball two (11) are provided with sealing washer (10).

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