Water tank cover capable of adjusting pressure

Abstract

The utility model discloses a pressure-adjustable water tank cover, which comprises a cover body, a support and a pressure valve, the pressure valve is fixedly connected with one end of a spring, the other end of the spring is fixed on the lower side surface of the support, the support is provided with a displacement control structure, and the displacement control structure comprises a displacement block, a limiting column, a rotating piece and a displacement column. And the shifting column is fixedly connected with the bracket. According to the water tank cover capable of adjusting the pressure, the displacement control structure is arranged on the support, the stepping motor is controlled to drive the displacement control structure in cooperation with an automobile electric control unit, the change of external air pressure is detected by an atmospheric sensor on an engine, and the change is transmitted to the electric control unit to control the support to move upwards or press downwards. Therefore, the pressure of the pressure valve is regulated and controlled by changing the stress of the spring, the pressure of the water tank cover is automatically controlled in various environments, and the water tank cover does not need to be frequently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of engine water tanks, in particular to a water tank cover capable of adjusting pressure. Background Art

[0002] There are bubbles in the coolant in the engine water tank. Bubbles are the primary condition for cavitation. In order to separate bubbles from the coolant, the internal pressure of the system will be increased when designing the cooling system. At present, the water tank pressure cap is generally at a fixed pressure value of 0.7 / 0.9 / 1.02 / / 1.1bar. Generally, a 0.5bar pressure cap can meet the requirements in low altitude areas such as plains. However, when matching the pressure cap, a pressure cap with a slightly higher pressure will be used, such as a 0.7bar pressure cap. Some will use 0.9bar, which can meet the use requirements of most domestic roads. When the driver drives from a low altitude area to a high altitude area, in order to avoid cavitation and high temperature problems inside the engine due to too low internal pressure in the cooling system, the water tank cap with a higher opening pressure will be replaced before entering the high altitude area, according to the pressure correspondence. Then when the car travels from the plain area to the plateau area, the 0.7bar pressure cap cannot be required, and a higher pressure such as a 1.1bar pressure cap needs to be replaced. If a cap with a higher pressure is used from the beginning, it will affect the pressure inside the entire cooling system, resulting in reduced system reliability, bursting of water pipes during vehicle operation, difficulty in discharging gas in the cooling pipeline, water spraying under severe working conditions, etc., resulting in reduced vehicle reliability and increased operating costs. Therefore, it is time-consuming, labor-intensive and inconvenient for drivers to constantly replace the radiator cap as the regional environment changes.

[0003] This case was created to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a water tank cover with adjustable pressure, which solves the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a water tank cover with adjustable pressure, including a cover body, a bracket, and a pressure valve, one end of a spring is fixedly connected to the pressure valve, the other end of the spring is fixed to the lower side of the bracket, and a control displacement structure is provided on the bracket, the control displacement structure includes a displacement block, a limit column, a rotating part, and a displacement column, and the displacement column is fixedly connected to the bracket.

[0008] Preferably, the bracket is provided with two support rods, grooves are formed on the two support rods relative to each other, the displacement block is slidably connected to the grooves, and the lower end of the displacement block is fixedly connected to the shift column.

[0009] Preferably, a hollow groove is provided on the rear side surface of the displacement block, the limiting column is fixedly connected in the hollow groove, and the limiting column is fixedly connected to the rotating member.

[0010] Preferably, a connecting column is fixedly connected to the other side of the rotating member opposite to the limiting column, and the connecting column passes through the supporting plate and is connected to the output end of the stepping motor.

[0011] Preferably, there are two springs fixed on the pressure valve, and the bracket is disc-shaped as a whole and is located directly above the springs.

[0012] Preferably, an annular pressure valve is also sleeved outside the pressure valve.

[0013] (III) Beneficial effects

[0014] After adopting the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model is a radiator cap with adjustable pressure, which arranges a control displacement structure on the bracket, cooperates with the automobile electronic control unit to control the stepping motor to drive the control displacement structure, so that the atmospheric sensor on the engine detects the change of the external air pressure, and transmits it to the electronic control unit to control the bracket to move up or down, thereby changing the force of the spring to regulate the pressure of the pressure valve, and realizes automatic control of the pressure of the radiator cap in various environments, without the need to frequently replace the radiator cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model;

[0016] Figure 2 This is an exploded diagram of the control displacement structure of the utility model;

[0017] Figure 3 It is a side view schematic diagram of the control shift structure of the utility model.

[0018] In the figure: 1. cover body; 2. bracket; 3. connector; 4. spring; 5. pressure valve; 6. vent pipe; 7. displacement block; 8. empty slot; 9. limit column; 10. rotating part; 11. connecting column; 12. support plate; 13. stepping motor; 14. support rod; 15. shift column. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below through the drawings and embodiments.

[0020] like Figure 1-3As shown: a water tank cover with adjustable pressure, including a cover body 1, a bracket 2, and a pressure valve 5, characterized in that: one end of a spring 4 is fixedly connected to the pressure valve 5, and the other end of the spring 4 is fixed to the lower side of the bracket 2, and a control displacement structure is provided on the bracket 2, and the control displacement structure includes a displacement block 7, a limit column 9, a rotating part 10, and a displacement column 15, and the displacement column 15 is fixedly connected to the bracket 2. When the external air pressure changes, the atmospheric sensor installed on the engine detects the change in the external air pressure, and then the data is transmitted to the automobile electronic control unit (ECU), and then the stepper motor 13 is controlled to drive according to the change in air pressure, driving the connecting column 11 to rotate, driving the rotating part 10 to rotate, and the limit column 9 rotates with the rotation of the rotating part 10, thereby driving the displacement block 7 to move up and down in the groove, and then driving the displacement column 15 to press the bracket 2 downward or lift the bracket 2 upward, so that the pressure on the spring 4 changes accordingly, thereby changing the opening pressure of the pressure valve 5.

[0021] Two support rods 14 are provided on the bracket 2, and grooves are opened relatively on the two support rods 14. The displacement block 7 is slidably connected with the groove, and the lower end of the displacement block 7 is fixedly connected with the shift column 15. When the displacement block 7 moves, it drives the shift column 15 to pressurize the bracket 2 to move the bracket 2 downward or drive the bracket 2 to be lifted and moved upward.

[0022] An empty slot 8 is provided on the rear side of the displacement block 7, a limit column 9 is fixedly connected in the empty slot 8, the limit column 9 is fixedly connected to the rotating member 10, the two springs 4 are located on both sides of the pressure valve 5, and the two springs 4 have the same size and mass, ensuring that the pressure valve 5 is subjected to uniform force.

[0023] A connecting column 11 is fixedly connected to the other side of the rotating member 10 opposite to the limiting column 9 . The connecting column 11 passes through the supporting plate 12 and is connected to the output end of the stepping motor 13 .

[0024] There are two springs 4 fixed on the pressure valve 5. The bracket 2 is disc-shaped as a whole and is located directly above the spring 4. A vent pipe 6 is also provided on the cover body 1. When the pressure valve 5 is opened, the vent pipe 6 can release excess coolant into the liquid storage tank to ensure that the pressure of the coolant is always within a normal range.

[0025] An annular pressure valve is also provided outside the pressure valve 5, which can prevent the coolant from generating negative pressure due to temperature changes after the engine stops working, so that the coolant in the water tank can automatically flow back into the engine to avoid the formation of bubbles in the cooling system.

[0026] The above-mentioned embodiments are for inspiration. Through the above-mentioned description, relevant staff can make various changes and modifications without departing from the scope of the invention. The technical scope of this new type of use is not limited to the content in the specification, and its protection scope must be determined according to the scope of the claims.

Claims

1. A water tank cover with adjustable pressure, comprising a cover body (1), a bracket (2), and a pressure valve (5), characterized in that: One end of a spring (4) is fixedly connected to the pressure valve (5), and the other end of the spring (4) is fixed to the lower side of the bracket (2). The bracket (2) is provided with a control displacement structure, which comprises a displacement block (7), a limit column (9), a rotating member (10), and a displacement column (15). The displacement column (15) is fixedly connected to the bracket (2).

2. The pressure-adjustable water tank cover according to claim 1, characterized in that: The bracket (2) is provided with two support rods (14), and grooves are formed on the two support rods (14) opposite to each other. The displacement block (7) is slidably connected to the grooves, and the lower end of the displacement block (7) is fixedly connected to the displacement column (15).

3. The pressure-adjustable water tank cover according to claim 2, characterized in that: A hollow groove (8) is provided on the rear side of the displacement block (7), the limiting column (9) is fixedly connected in the hollow groove (8), and the limiting column (9) is fixedly connected to the rotating member (10).

4. The pressure-adjustable water tank cover according to claim 3, characterized in that: A connecting column (11) is fixedly connected to the other side of the rotating member (10) opposite to the limiting column (9), and the connecting column (11) passes through the supporting plate (12) and is connected to the output end of the stepping motor (13).

5. The pressure-adjustable water tank cover according to claim 1, characterized in that: There are two springs (4) fixed on the pressure valve (5), and the bracket (2) is disc-shaped as a whole and is located directly above the springs (4).

6. The pressure-adjustable water tank cover according to claim 1, characterized in that: An annular pressure valve is also sleeved outside the pressure valve (5).

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