Valve structure of automobile water pump control valve

Abstract

The utility model relates to the technical field of valves, in particular to a valve structure of an automobile water pump control valve, which comprises a valve body and a valve core movably arranged in the valve body, the valve core can be driven by external force to reciprocate in the valve body along the axis direction, and the peripheral surface of the valve core is attached to the inner wall of the valve body. At least one first water inlet window and at least one first water outlet window are formed in the peripheral face of the valve body, and at least one second water inlet window matched with the first water inlet window and at least one second water outlet window matched with the first water outlet window are formed in the peripheral face of the valve element. When the second water inlet window coincides with the first water inlet window and the first water outlet window coincides with the second water outlet window, the valve is opened, and when the first water inlet window coincides with the peripheral face of the valve element, the valve is closed.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and particularly relates to a valve structure of an automobile water pump control valve. Background Art

[0002] An automobile water pump is an important component for cooling an automobile engine. The utility model patent with the patent application number CN202320985535.3 discloses an integrated mechanical water pump, which includes a water pump housing. On one side of the inner wall of the water pump housing, there is a valve body housing (2). The valve body housing (2) and the water pump housing (1) are an integrally formed structure. At the top of the water pump housing (1), there is a rotor (3). The rotor (3) is connected with a transmission shaft. One end of the transmission shaft penetrates through the water pump housing (1) and is connected with an impeller (4). A valve rocker arm (6) is installed on the water pump housing (1). The valve rocker arm (6) is connected with a valve core (5) through a shaft body.

[0003] The valve structure of the integrated mechanical water pump has the following disadvantages in the actual production and use process: The valve core rotates in the valve body housing to complete the control of the inflow and outflow of the coolant. Combining with the attached drawings of the specification, Figure 1 it can be seen that after long-term use of the valve core, the two side edges of the valve core cannot be tightly fitted with the valve body housing, resulting in a reduction in the sealing performance of the valve core, and thus causing the mechanical water pump to fail. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a valve structure of an automobile water pump control valve aiming at the deficiencies of the above-mentioned prior art, so as to improve the overall sealing effect and extend the service life.

[0005] To achieve the above object, the utility model provides the following technical solution: A valve structure of an automobile water pump control valve includes a valve body and a valve core movably arranged in the valve body. The valve core can reciprocate in the valve body along the axial direction under the drive of an external force. The outer peripheral surface of the valve core is in contact with the inner wall of the valve body. At least one first water inlet window and at least one first water outlet window are provided on the outer peripheral surface of the valve body. At least one second water inlet window adapted to the first water inlet window and at least one second water outlet window adapted to the first water outlet window are provided on the outer peripheral surface of the valve core. When the second water inlet window coincides with the first water inlet window and the first water outlet window coincides with the second water outlet window, the valve is opened. When the first water inlet window coincides with the outer peripheral surface of the valve core, the valve is closed.

[0006] The utility model with the above characteristics: By correspondingly arranging an inlet window and an outlet window on the valve body and the valve core, the purpose of driving the valve core to move up and down to control the opening and closing of the liquid passage is achieved. The way of opening and closing the liquid passage can quickly respond to the cooling requirements of the engine, and the vertical movement of the valve core reduces the friction area and wear points between the valve core and the valve body, which helps to improve the overall sealing effect and extend the service life; the outer peripheral surface of the valve core is closely attached to the inner wall of the valve body, forming a good sealing surface. When the liquid passage is closed, the first inlet window is completely blocked by the valve core, further enhancing the sealing effect and ensuring the sealing performance of the water pump.

[0007] A further setting of the utility model is that: a plurality of first inlet windows are arranged on the outer peripheral surface of the valve body and are distributed in sequence along the vertical direction. A first blocking portion is formed between two vertically distributed first inlet windows. A plurality of second inlet windows are arranged on the outer peripheral surface of the valve core and are distributed in sequence along the vertical direction. A second blocking portion is formed between two vertically distributed second inlet windows. The cross-sectional area of the first inlet window is the same as the cross-sectional area of the second blocking portion, and the cross-sectional area of the second inlet window is the same as the cross-sectional area of the first blocking portion.

[0008] The utility model with the above characteristics: By arranging a plurality of first inlet windows and second inlet windows, the flow rate of the coolant can be precisely adjusted according to the real-time requirements of the engine to meet the coolant requirements of the engine under different working conditions and improve the cooling efficiency.

[0009] A further setting of the utility model is that: a first outlet window is arranged on the outer peripheral surface of the valve body, and a second outlet window is correspondingly arranged on the outer peripheral surface of the valve core. The upper side edge of the first outlet window is at the same height as the upper side edge of the first first inlet window, and the lower side edge of the first outlet window is at the same height as the lower side edge of the last first inlet window. The upper side edge of the second outlet window is at the same height as the upper side edge of the first second inlet window, and the second outlet window does not have a lower side edge.

[0010] The utility model with the above characteristics: Only one outlet window is arranged on the outer peripheral surfaces of the valve body and the valve core, and the cross-sectional areas of the outlet windows are equal to those of the inlet windows. Such a structural design makes it impossible for the outer peripheral surfaces of the valve body and the valve core to form a rotating body. When the coolant enters the valve body from the inlet window, no vortex will be formed, thereby accelerating the rate of the coolant passing through the valve body and improving the cooling efficiency.

[0011] A further arrangement of the present utility model is as follows: A first reinforcing rib is provided in the first water inlet window and is arranged vertically. The first reinforcing rib is located in the middle of the first water inlet window and divides the first water inlet window into two equal parts. A second reinforcing rib is provided in the second water inlet window and is arranged along the set direction. The second reinforcing rib is located in the middle of the second water inlet window and divides the second water inlet window into two equal parts. The outer peripheral surface of the second reinforcing rib is in contact with the inner wall of the first reinforcing rib.

[0012] For the present utility model with the above characteristics: The first reinforcing rib and the second reinforcing rib are respectively located in the middle of their respective water inlet windows and divide the windows into two equal parts. This design significantly enhances the structural strength of the water inlet window area. When the coolant is flowing, especially when the flow rate is large or the pressure is high, the reinforcing ribs can effectively resist the stress generated by the water flow impact and prevent the window from deforming or cracking.

[0013] A further arrangement of the present utility model is as follows: The outer peripheral surface of the first blocking portion includes a first water inlet surface inclined towards the lower end of the valve body, a second water inlet surface inclined towards the upper end of the valve body, and a connecting surface connecting the first water inlet surface and the second water inlet surface. The connecting surface is the outer peripheral surface of the valve body.

[0014] For the present utility model with the above characteristics: An inclined surface is provided on the outer peripheral surface of the first blocking portion in contact with the coolant, reducing the resistance when the coolant passes through, enabling the coolant to pass through the valve body more smoothly, and thus improving the overall efficiency of the water pump.

[0015] The present utility model will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram when the valve of the embodiment of the present utility model is opened.

[0017] Figure 2 It is a schematic structure of the valve body of the embodiment of the present utility model Figure 1 .

[0018] Figure 3 It is a schematic structure of the valve body of the embodiment of the present utility model Figure 2 .

[0019] Figure 4 It is a schematic structure of the valve core of the embodiment of the present utility model Figure 1 .

[0020] Figure 5 It is a schematic structure of the valve core of the embodiment of the present utility model Figure 2 .

[0021] Figure 6 It is a schematic structural diagram when the valve of the embodiment of the present utility model is closed.

[0022] Figure 7 This is an exploded view of an embodiment of the present utility model. Detailed implementation manner

[0023] This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art can make modifications without creative contributions to this embodiment as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

[0024] Such as Figure 1-7 shown, a valve body 1 and a valve core 2 movably arranged in the valve body 1 are included. The valve core 2 can reciprocate in the valve body 1 along the axial direction under the drive of an external force.

[0025] The valve core 2 includes a valve core part 21 that cooperates with the valve body 1 and a rack part 22. The valve body 1 includes a cylindrical valve body part 11 and a connecting part 12 arranged at the end of the valve body part 11. The valve core part 21 of the valve core 2 is cylindrical, and its outer peripheral surface is in contact with the inner wall of the valve body part 11. The valve core 2 and the valve body 1 are sleeved and both are hollow inside. At least one first water inlet window 111 and at least one first water outlet window 112 are provided on the outer peripheral surface of the valve body part 11 to realize the basic function of the valve. In this embodiment, a plurality of first water inlet windows 111 are arranged on the outer peripheral surface of the valve body part 11 in sequence along the vertical direction. A first blocking part 113 is formed between two vertically distributed first water inlet windows 111. One first water outlet window 112 is provided on the outer peripheral surface of the valve body part 11. The upper side edge of the first water outlet window 112 is at the same height as the upper side edge of the first first water inlet window 111. The lower side edge of the first water outlet window 112 is at the same height as the lower side edge of the last first water inlet window 111. At least one second water inlet window 211 adapted to the first water inlet window 111 and at least one second water outlet window 212 adapted to the first water outlet window 111 are provided on the outer peripheral surface of the valve core 2 to realize the basic function of the valve. In this embodiment, a plurality of second water inlet windows 211 are arranged on the outer peripheral surface of the valve core part 21 in sequence along the vertical direction. A second blocking part 213 is formed between two vertically distributed second water inlet windows 211. The cross-sectional area of the first water inlet window 111 is the same as the cross-sectional area of the second blocking part 213. The cross-sectional area of the second water inlet window 211 is the same as the cross-sectional area of the first blocking part 113. One corresponding second water outlet window 212 is provided on the outer peripheral surface of the valve core part 21. The upper side edge of the second water outlet window 212 is at the same height as the upper side edge of the first second water inlet window 211. The second water outlet window 212 is not provided with a lower side edge, that is, it is open. When the second water inlet window 211 coincides with the first water inlet window 111 and the first water outlet window 112 coincides with the second water outlet window 212, the valve opens. When the first water inlet window 111 coincides with the second blocking part 213, the valve closes.

[0026] The first water inlet window 111 is provided with a first reinforcing rib 114 arranged vertically. The first reinforcing rib 114 is located in the middle of the first water inlet window 111 and divides the first water inlet window 111 into two equal parts. The second water inlet window 211 is provided with a second reinforcing rib 214 arranged along the set direction. The second reinforcing rib 214 is located in the middle of the second water inlet window 211 and divides the second water inlet window 211 into two equal parts. The outer peripheral surface of the second reinforcing rib 214 is in contact with the inner wall of the first reinforcing rib 114.

[0027] The outer peripheral surface of the first blocking portion 113 includes a first water inlet surface 1131 inclined towards the lower end of the valve body 1, a second water inlet surface 1132 inclined towards the upper end of the valve body 1, and a connecting surface 1133 connecting the first water inlet surface 1131 and the second water inlet surface 1132. The connecting surface 1133 is the outer peripheral surface of the valve body 1.

[0028] During actual use, a driving member capable of driving the valve core to move up and down is arranged in the control valve. When the valve core portion 21 moves upward along the axial direction until the second blocking portion 213 coincides with the first blocking portion 113, the first water inlet window 111 coincides with the second water inlet window 211, and the valve is opened at this time. When the valve core portion 21 moves downward along the axial direction until the second blocking portion 213 coincides with the first water inlet window 111, the first blocking portion 113 coincides with the second water inlet window 211, and the valve is closed at this time. By adjusting the opening size of the valve, the regulation of the coolant flow rate can be achieved. That is, when all the first water inlet windows 111 coincide with all the second water inlet windows 211, the valve is fully opened, and the coolant flow rate is the largest at this time. By gradually making the first water inlet windows 111 coincide with the second blocking portion 213 one by one, the valve is gradually closed, and the coolant flow rate is gradually reduced. During actual use, the coolant flow rate can be adjusted according to the actual vehicle condition;

[0029] When the engine is just started, in order to quickly increase the engine temperature to ensure normal operation, the valve needs to be closed. After the engine warms up, the valve is opened to dissipate heat and reduce the temperature of the engine; in real life, if the engine temperature is too low, the valve needs to be closed, and if the engine temperature is too high, the valve needs to be opened.

Claims

1. A valve structure of an automobile water pump control valve, comprising a valve body and a valve core movably arranged in the valve body, characterized in that: The valve core can reciprocate in the valve body along the axial direction under the drive of external force, the outer circumferential surface of the valve core is in contact with the inner wall of the valve body, at least one first water inlet window and at least one first water outlet window are provided on the outer circumferential surface of the valve body, at least one second water inlet window adapted to the first water inlet window and at least one second water outlet window adapted to the first water outlet window are provided on the outer circumferential surface of the valve core, when the second water inlet window coincides with the first water inlet window and the first water outlet window coincides with the second water outlet window, the valve is opened, and when the first water inlet window coincides with the outer circumferential surface of the valve core, the valve is closed.

2. The valve structure of a vehicle water pump control valve according to claim 1, characterized in that: The outer circumferential surface of the valve body is provided with a plurality of first water inlet windows distributed in sequence along the vertical direction, and a first barrier portion is formed between two first water inlet windows distributed up and down. The outer circumferential surface of the valve core is provided with a plurality of second water inlet windows distributed in sequence along the vertical direction, and a second barrier portion is formed between two second water inlet windows distributed up and down. The cross-sectional area of ​​the first water inlet window is the same as the cross-sectional area of ​​the second barrier portion, and the cross-sectional area of ​​the second water inlet window is the same as the cross-sectional area of ​​the first barrier portion.

3. The valve structure of a vehicle water pump control valve according to claim 2, characterized in that: A first water outlet window is provided on the outer circumferential surface of the valve body, and a second water outlet window is correspondingly provided on the outer circumferential surface of the valve core, the upper side of the first water outlet window is at the same height as the upper side of the first first water inlet window, the lower side of the first water outlet window is at the same height as the lower side of the last first water inlet window, the upper side of the second water outlet window is at the same height as the upper side of the first second water inlet window, and the second water outlet window is not provided with a lower side.

4. The valve structure of a vehicle water pump control valve according to claim 2, characterized in that: A first reinforcing rib arranged along a vertical direction is provided in the first water inlet window, and the first reinforcing rib is located in the middle of the first water inlet window to divide the first water inlet window into two. A second reinforcing rib arranged along a setting direction is provided in the second water inlet window, and the second reinforcing rib is located in the middle of the second water inlet window to divide the second water inlet window into two, and the outer peripheral surface of the second reinforcing rib is in contact with the inner wall of the first reinforcing rib.

5. The valve structure of a vehicle water pump control valve according to claim 2, characterized in that: The outer peripheral surface of the first blocking portion includes a first water inlet surface inclined toward the lower end of the valve body, a second water inlet surface inclined toward the upper end of the valve body, and a connecting surface connecting the first water inlet surface and the second water inlet surface, and the connecting surface is the outer peripheral surface of the valve body.

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