A flow valve

Abstract

The utility model provides a kind of flow valve belongs to flow valve technical field.Aiming at the valve body flow velocity becomes fast, impact force continues to increase, because the valve body cannot automatically adjust flow to cause larger impact force, possibly damage hydraulic system, engine and other problems, propose a kind of flow valve.Through setting adjusting cavity, liquid output impact force can be shunted in time, and the output stress area is increased indirectly.In this way, the relatively simple structure design makes it possible to protect other elements in the hydraulic system and increase the system's usage time without affecting the function of the flow valve body.

Description

Technical Field

[0001] This utility model belongs to the field of flow valve technology, and in particular, it relates to a flow valve. Background Technology

[0002] Common flow control valves include butterfly valves and throttle valves. The main method is to control the flow area to change the fluid flow rate.

[0003] Butterfly valves require manual control of the valve core's rotation, making operation cumbersome and inconvenient. Throttling valves, commonly used in automobiles, hydraulic systems, and refrigeration equipment, regulate flow by changing the throttling cross-section or length. However, when the flow rate increases and the impact force continues to rise, the valve body can only control the flow through the valve opening size and cannot automatically adjust the flow. Due to the impact force generated by the pressure difference, excessively fast flow rates may damage hydraulic systems, engines, etc. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a flow valve with adjustable output impact pressure.

[0005] The objective of this utility model can be achieved through the following technical solutions: A flow valve has a valve port and a mounting hole on the upper surface of the valve body. The valve port has a first sealing groove for placing a sealing ring. The mounting hole has a thread and can be assembled with a valve cover after being fitted with a mounting screw.

[0006] The valve body is provided with an inlet chamber, an outlet chamber, and an adjusting chamber. The inlet chamber is divided into an inlet section and a pressurizing section. One end of the inlet section is connected to the pressurizing section, and the other end is connected to an external pipeline; the pressurizing section has an annular cross-section. One end of the outlet chamber is connected to an external pipeline, and the other end is located in the middle of the pressurizing section. The outlet chamber opening is inside the valve body and coaxial with the valve port, and the opening is provided with an annular step for installing a sealing ring. The adjusting chamber is provided with a limiting step, and a vertically movable connecting piece is placed on the limiting step. A first through hole is provided in the middle of the bottom of the limiting step, and the first through hole connects the adjusting chamber and the outlet chamber.

[0007] Preferably, the upper surface of the valve port is provided with a second through hole, the surface of the second through hole is provided with a second sealing groove, and the inside of the second through hole is connected to the inside of the limiting step.

[0008] Preferably, the outer wall portion of the liquid outlet chamber is placed inside the pressurization section and serves as the bottom of the pressurization section.

[0009] Preferably, the liquid outlet chamber has an L-shaped cross-section, and the opening of the liquid outlet chamber is higher than the bottom of the pressurization section.

[0010] Preferably, the connector abuts against the limiting step when it is not moving.

[0011] Preferably, the regulating cavity is provided with a pipeline, one end of which is connected to the regulating cavity and the other end is abutted against the bottom of the connector.

[0012] Compared with the prior art, this application has the following advantages: By incorporating a regulating chamber, the impact force of the liquid output can be diverted in a timely manner, effectively increasing the output force-bearing area. According to the pressure formula, the force-bearing area is inversely proportional to the pressure. This relatively simple structural design allows for the regulation of impact force without affecting the function of the flow valve itself, thus better protecting other components in the hydraulic system and extending the system's service life. Attached Figure Description

[0013] Figure 1 This is a top view of this application; Figure 2 This is the AA cross-sectional view in this application; Figure 3 This is a partial cross-sectional view of BB in this application; Figure 4 This is a cross-sectional view of the connector in this application.

[0014] In the diagram, 1 is the valve body; 11 is the inlet chamber; 111 is the inlet section; 112 is the pressurization section; 12 is the outlet chamber; and 13 is the regulating chamber. 2. Mounting holes; 3. It has a valve port; 4. First sealing groove; 5. Pressure boosting unit; 6. Limiting step; 7. Second through hole; 8. Second sealing groove; 9. Connectors; 20. First through hole; 21. Piping; 1001, Valve cover. Detailed Implementation

[0015] The following is in conjunction with the appendix Figures 1-3 The present application will be further described with reference to specific embodiments: First, it should be noted that in the description of this application, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for descriptive purposes and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0016] like Figures 1 to 4 As shown, a flow valve includes a valve body 1. The upper surface of the valve body 1 has a valve port 3 and a mounting hole 2. The valve port 3 has a first sealing groove 4 for placing a sealing ring. The mounting hole 2 has threads, allowing it to be assembled with a valve cover 1001 after being fitted with a mounting screw and nut.

[0017] The valve body 1 is provided with an inlet chamber 11, an outlet chamber 12, and an adjustment chamber 13.

[0018] The liquid inlet chamber 11 is divided into a liquid inlet section 111 and a pressurization section 112. One end of the liquid inlet section 111 is connected to the pressurization section 112, and the other end is connected to an external pipeline. The pressurization section 112 has an annular cross-section.

[0019] One end of the liquid outlet chamber 12 is connected to an external pipeline, and the other end of the liquid outlet chamber 12 is located in the middle of the pressurization section 112. The opening of the liquid outlet chamber 12 is inside the valve body 1 and is coaxial with the valve port 3, and the opening is provided with an annular step 5 on which a sealing ring can be installed.

[0020] The regulating cavity 13 is provided with a limiting step 6, and a connecting piece 9 that can move up and down is placed on the limiting step 6. A first through hole 20 is provided in the middle of the bottom of the limiting step 6, and the first through hole 20 connects the regulating cavity 13 and the liquid outlet cavity 12.

[0021] The principle of this application is as follows: After the liquid in the external pipeline passes through the inlet chamber 11, a certain pressure difference is formed in the valve body. Since the pressure in the inlet chamber 11 is greater than that in other parts of the valve body, when the pressure in the inlet channel reaches a certain level, it can push the sealing ring upward, and further open the outlet chamber 12, so that the liquid can flow out from the outlet chamber 12.

[0022] When the impact pressure of the liquid in the outlet chamber 12 is too high, a significant pressure difference is reached, which pushes the connector 9 upwards. Once the impact pressure and the external pressure difference overcome the weight of the connector 9, it is pushed upwards and opens the third channel. The liquid can then directly reach the regulating chamber through the third channel, quickly pushing the connector upwards and allowing the liquid to flow outwards. When the continuous force cannot be changed, this effectively increases the force-bearing area and reduces the output impact pressure.

[0023] Specifically, the upper surface of the valve port 3 is provided with a second through hole 7, the surface of the second through hole 7 is provided with a second sealing groove 8, and the inside of the second through hole 7 is connected to the inside of the limiting step 6.

[0024] Specifically, the outer wall portion of the liquid outlet chamber 12 is placed inside the pressurization section 112 and serves as the bottom of the pressurization section 112.

[0025] In this application, a second through hole 7 and a second sealing groove 8 are provided, which can be connected to existing pressure equipment to allow liquid to flow out of the outlet chamber 12. All sealing rings are commercially available products; therefore, the first sealing groove 4, the second sealing groove 8, etc., are all of standard size.

[0026] Specifically, the liquid outlet chamber 12 has an L-shaped cross-section, and the opening of the liquid outlet chamber 12 is higher than the bottom of the pressurization section 112.

[0027] In this application, the outlet of the liquid outlet chamber 12 is connected to a sealing device. When the outlet is higher than the bottom of the pressurization section 112, the outer ring of the sealing device is pushed upward by the force, while the middle of the sealing device is pushed downward. This causes the sealing device and the outlet of the liquid outlet chamber 12 to no longer seal. The liquid that has entered is opened by pressure, and the liquid can flow into the outlet chamber 12.

[0028] Specifically, when the connecting member 9 is not moving, it abuts against the limiting step 6. In this application, when the connecting member 9 is not under force, it can be placed precisely on the limiting step 6, playing a role in sealing and preventing dust, and keeping the inside of the valve body clean.

[0029] Specifically, the regulating cavity 13 is provided with a pipe 21, one end of which is connected to the regulating cavity 13, and the other end of which has an oil port abutting against the bottom of the connector 9. In this application, by setting up the pipe 21, high-impact pressure liquid can be introduced into the regulating cavity 13, increasing the force-bearing area of ​​the connector 9, thereby increasing its force-bearing area and quickly lifting it up.

[0030] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A flow valve, characterized in that, Including valve body (1); The valve body (1) has a valve port (3) and a mounting hole (2) on its upper surface. The valve port (3) has a first sealing groove (4) on which a sealing ring can be placed. The mounting hole (2) has a thread and can be assembled with a valve cover (1001) after being fitted with a mounting screw and nut. The valve body (1) is provided with an inlet chamber (11), an outlet chamber (12), and an adjustment chamber (13). The liquid inlet chamber (11) is divided into a liquid inlet section (111) and a pressurization section (112). One end of the liquid inlet section (111) is connected to the pressurization section (112), and the other end is connected to an external pipeline. The pressurization section (112) has an annular cross-section. One end of the liquid outlet chamber (12) is connected to an external pipeline, and the other end of the liquid outlet chamber (12) is in the middle of the pressurization section (112); the outlet of the liquid outlet chamber (12) is inside the valve body (1) and is coaxial with the valve port (3), and the outlet is provided with an annular step (5) on which a sealing ring can be installed. The regulating cavity (13) is provided with a limiting step (6), and a connecting piece (9) that can move up and down is placed on the limiting step (6). A first through hole (20) is provided in the middle of the bottom of the limiting step (6), and the first through hole (20) connects the regulating cavity (13) and the liquid outlet cavity (12).

2. The flow valve according to claim 1, characterized in that, The valve port (3) has a second through hole (7) on its upper surface, and a second sealing groove (8) is provided on the surface of the second through hole (7). The second through hole (7) is connected to the limiting step (6).

3. A flow valve according to claim 2, characterized in that, The outer wall portion of the liquid outlet chamber (12) is placed inside the pressurization section (112) and serves as the bottom of the pressurization section (112).

4. A flow valve according to claim 3, characterized in that, The liquid outlet chamber (12) has an L-shaped cross section, and the opening of the liquid outlet chamber (12) is higher than the bottom of the pressurization section (112).

5. A flow valve according to claim 1, characterized in that, When the connector (9) is not moving, it abuts against the limiting step (6).

6. A flow valve according to claim 5, characterized in that, The regulating cavity (13) is provided with a pipeline (21), one end of which is connected to the regulating cavity (13), and the other end of which is connected to the bottom of the connector (9).

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