Novel fluid control valve

Abstract

In order to solve the problems that a fluid control valve in the prior art is complex in structure and not suitable for various fluids, the utility model provides a novel fluid control valve which comprises an air cylinder with a front cover arranged at the bottom, a valve body arranged below the air cylinder, a pilot electromagnetic valve arranged above the air cylinder, a through hole formed in the center of the front cover and a piston rod arranged in the through hole. The leakage stopping valve is integrated, simple in structure and convenient and fast to install, the leakage stopping pad is made of the metal material, different fluid requirements can be met, and the service life under the high-pressure environment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic valves, in particular to a novel fluid control valve. Background Art

[0002] A fluid control valve is a valve widely used in the field of industrial automation control. Its main function is to automatically adjust the flow and pressure of the process fluid according to changes in flow or pressure difference. The working principle of the fluid control valve is based on the basic principle of fluid control, that is, changing the cross-sectional area of ​​the fluid passing through the valve to change the flow rate, thereby achieving control of the fluid flow.

[0003] However, the current control valves are extremely inconvenient to install and maintain due to their complex overall structure. In addition, in order to meet the control requirements of various industrial production processes, such as temperature and pressure, there are nearly a thousand products of different specifications and types, which makes it inconvenient to select control valves, install and apply them, maintain them, and manage them. Other problems include the short average life of control valves, which leads to a big difference between the characteristics when leaving the factory and the characteristics after a period of operation.

[0004] In order to solve the above problems, the Chinese utility model patent with patent number CN218954068U proposes a fluid control valve, including: valve body, valve cover, upper piston, valve core, lower piston, valve stem, valve core spring and return spring. The valve cover is provided with an air port, and the air source enters the fluid control valve from the air port to squeeze the upper piston, valve stem and lower piston downward. The two sides of the valve body are provided with a fluid inlet and a fluid outlet that are interconnected. When the valve stem and the lower piston move down to the bottom, the lower piston separates the fluid inlet and the fluid outlet. However, this fluid control valve has poor versatility and cannot adapt to the gases required by various industrial production. Utility Model Content

[0005] The utility model mainly solves the problem that the fluid control valve in the prior art has a complex structure and is not suitable for a variety of fluids, and provides a new type of fluid control valve.

[0006] The above technical problems of the utility model are mainly solved by the following technical solutions:

[0007] A novel fluid control valve is characterized by comprising a cylinder with a front cover at the bottom, a valve body at the bottom of the cylinder, a pilot solenoid valve at the top of the cylinder, a through hole at the center of the front cover, a piston rod in the through hole, and a crater seal made of metal material in the inner cavity of the valve body. The utility model is integrated, simple in structure and easy to install. The anti-leakage pad is made of metal material and can adapt to different fluid requirements, and ensures the service life under high pressure environment.

[0008] As a preferred solution, a piston is provided in the cylinder, and a spring is provided on the top of the piston to provide force to make the piston rod in close contact with the crater sealing gasket.

[0009] As a preferred solution, a metal anti-leakage pad is provided at the bottom of the piston rod, so that the anti-leakage pad can adapt to different fluid requirements and ensure the service life in a high temperature environment.

[0010] As a preferred solution, corresponding fixing holes are provided on both sides of the anti-leakage pad, and the anti-leakage pad can be fixed on the piston rod by inserting a device.

[0011] As a preferred solution, a fixing groove is provided on the bottom side of the piston rod for determining the fixing position of the anti-leakage pad.

[0012] As a preferred solution, the fixing groove and the fixing hole are connected by a fixing pin, which ensures the structural stability of the anti-leakage pad and the piston rod and has a floating compensation function.

[0013] As a preferred solution, a scraper sleeve is provided inside the front cover to prevent impurities in the fluid from damaging the seal and extend the service life.

[0014] As a preferred solution, the top of the crater sealing gasket is a sealing surface for preventing air flow from flowing out.

[0015] Therefore, the advantages of the utility model are:

[0016] 1. Simple structure and easy installation. The pilot solenoid valve, single-acting cylinder and valve body are integrated into one, and centralized control reduces installation pipelines.

[0017] 2. Adaptable to a variety of fluids and high pressure occasions, the leak-proof pads and crater sealing pads are made of metal materials to adapt to different fluid requirements and ensure the service life under high pressure environment.

[0018] 3. Adding a scraper sleeve to the front cover can prevent impurities in the fluid from damaging the seal and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a structural diagram of the anti-leakage pad of the utility model;

[0021] Figure 3 It is a structural diagram of the crater sealing pad of the utility model;

[0022] Figure 4 It is a structural diagram of the front cover of the utility model.

[0023] In the figure: 1. cylinder; 2. valve body; 3. pilot solenoid valve; 4. spring; 5. piston rod; 6. piston; 7. crater seal; 8. anti-leakage pad; 11. front cover; 51. fixing pin; 111. scraper sleeve. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0025] Embodiment 1:

[0026] A novel fluid control valve comprises a cylinder 1 with a front cover 11 at the bottom, a valve body 2 is provided below the cylinder 1, a pilot solenoid valve 3 is provided above the cylinder 1, a through hole is provided at the center of the front cover 11, a piston rod 5 is provided in the through hole, a crater sealing gasket 7 made of metal is provided in the inner cavity of the valve body 2, and the top of the crater sealing gasket 7 is a sealing surface. The utility model is integrated, simple in structure and convenient to install, and the anti-leakage gasket 8 is made of metal material to adapt to different fluid requirements and ensure the service life under high pressure environment.

[0027] Cylinder is a common mechanical component. Its wide application in various fields makes it an indispensable and important part in the engineering field. In particular, in the fields of industrial manufacturing, automotive engineering and aerospace, cylinder 1 plays a vital role. In the field of industrial manufacturing, cylinder 1 is usually used as an actuator, whose function is to convert pressure energy into mechanical energy, thereby driving other mechanical components to complete various work tasks. For example, in an automated production line, cylinder 1 is often used to control the movement of the robot arm to realize operations such as part assembly and material handling, thereby improving production efficiency and accuracy. For example, in an automated production line, cylinder 1 can control the movement of the robot arm to realize operations such as part assembly and material handling. In automotive engineering, cylinder 1 is one of the key components of the internal combustion engine. It is responsible for controlling the opening and closing of the valve and the up and down movement of the piston, thereby coordinating the combustion process and output power of the engine, affecting the performance of the entire vehicle. Its working principle is based on the reciprocating motion of the piston in the cylinder, which generates pressure changes in this way to achieve various functional requirements. In the design of the present application, a piston 6 is provided inside the cylinder 1, and a spring 4 is provided on the top of the piston 6. The role of the spring 4 on the top of the piston 6 is very important. It plays the role of pushing the piston so that the anti-leakage pad 8 and the crater sealing pad 7 maintain close contact. This design can not only effectively prevent gas leakage, but also improve the efficiency and performance of the system, and ensure the stable operation and long-term reliability of the cylinder 1. In general, as a mechanical element, the application of the cylinder 1 in various fields has demonstrated its importance and versatility. Through continuous technological innovation and optimized design, the cylinder 1 will continue to play a key role in promoting the development and progress in the field of engineering technology.

[0028] In addition, in order to adapt to the needs of different fluids and the service life in high temperature environments, a metal anti-leakage pad 8 is designed at the bottom of the piston rod 5. This measure is intended to improve the scope of application and reliability of the cylinder. The anti-leakage pad 8 is made of metal material and has excellent wear resistance and high temperature resistance. It can be used for a long time in a high temperature environment without leakage problems, effectively ensuring the stability and safety of the system. This design enables the cylinder to adapt to various working conditions, whether in the case of lubricating oil, hydraulic oil or other fluid media, it can maintain a good sealing effect. At the same time, the high temperature resistance of the metal anti-leakage pad 8 also enables the cylinder to still work stably in a high temperature environment, and is not affected by temperature and fails. Therefore, such a design not only improves the applicability and reliability of the cylinder, but also extends its service life, ensuring the durability and stability of the system.

[0029] In order to ensure that the anti-leak pad 8 can be accurately installed in the required position, corresponding fixing holes are designed on both sides of the anti-leak pad 8. The function of these fixing holes is to make the anti-leak pad 8 tightly connected with the piston rod 5 and ensure that it will not loosen or fall off during operation. In order to achieve this connection, a fixing groove is provided on the bottom side of the piston rod 5. By designing the bottom side of the piston rod 5 to have a structure with a fixing groove, the fixing hole can be connected to the fixing groove. This connection method enhances the stability between the anti-leak pad 8 and the piston rod 5, so that it can withstand the impact and vibration from the internal pressure of the cylinder. In addition, the fixing groove and the fixing hole are also connected by a fixing pin 51, which further ensures the structurally firm connection between the anti-leak pad 8 and the piston rod 5. Through such a design, a stable connection is formed between the anti-leak pad 8 and the piston rod 5, which can ensure that it will not loosen or fall off during the operation of the cylinder. At the same time, this connection structure also has a floating compensation function, so that the anti-leak pad 8 can be slightly adjusted within a certain range to adapt to the pressure and temperature changes inside the cylinder. This floating compensation function can improve the stability and reliability of the system and reduce the risk of damage caused by changing working conditions.

[0030] In summary, through the design of the fixing hole, the fixing groove and the fixing pin 51, a stable connection is achieved between the anti-leakage pad 8 and the piston rod 5, and a floating compensation function is provided. Such a design ensures the normal operation and reliability of the cylinder, and also improves the stability and durability of the system.

[0031] The design of the fixing hole and the fixing groove takes into account the pressure and vibration that the anti-leak pad 8 may be subjected to during use. The fixing hole provides a suitable position so that the anti-leak pad 8 can be firmly fixed on the piston rod 5 and will not move or deform due to the pressure during operation. At the same time, the setting of the fixing groove enables the fixing pin 51 to be fully inserted therein, thereby increasing the strength and stability of the connection. The design of this structure helps to ensure the stability and reliability of the anti-leak pad 8 and the piston rod 5 during use. The stable connection helps to prevent the anti-leak pad from loosening or falling off under high pressure, thereby protecting related equipment from leakage. In addition, the use of the fixing pin 51 also simplifies the installation and maintenance process because the anti-leak pad 8 can be more easily connected to the piston rod 5. The stability of this structure is very important for many application scenarios. For example, in a hydraulic system, the piston rod 5 is under great pressure and needs to maintain a tight connection with the seal. Only with the help of the fixing hole and the fixing groove can the piston rod 5 be firmly fixed in the correct position to ensure the reliability and long-term stability of the sealing effect. In short, through the connection between the fixing hole and the fixing groove, and in combination with the fixing pin 51 on the bottom side of the piston rod 5, the structural stability between the anti-leakage pad 8 and the piston rod 5 is improved. This design is not only suitable for hydraulic systems, but also can play a role in other industrial equipment that requires stable connection, thereby ensuring the normal operation of the equipment and extending its service life.

[0032] The front cover 11 is an important part of the cylinder, and a scraper sleeve 111 is provided inside the front cover 11. The function of the scraper sleeve 111 is to prevent impurities in the fluid from damaging the seal, thereby extending the service life of the seal. In the hydraulic cylinder used in industrial manufacturing, the scraper sleeve 111 plays an important protective role. It can effectively prevent pollutants such as dust and metal chips from entering the cylinder 1, and prevent these impurities from causing wear and damage to the friction surfaces of the piston and the seal. This is crucial to improving the reliability of the cylinder and extending its service life. During the working process of the cylinder, the movement of the piston will cause the flow of the liquid, which may carry some impurities. If there is no scraper sleeve 111, these impurities may directly contact the seal, causing wear and leakage problems of the seal. The setting of the scraper sleeve 111 can effectively scrape off the impurities when the piston moves, and prevent them from further entering the cylinder. By using the scraper sleeve 111, the piston and the seal can be protected from impurities and prevented from damage and leakage. This not only extends the service life of the seal, but also improves the stability and reliability of the cylinder. At the same time, the design of the scraper sleeve 111 also facilitates future maintenance and cleaning, and can easily remove impurities accumulated on the scraper sleeve to ensure its normal function. Therefore, the application of the scraper sleeve 111 in the hydraulic cylinder effectively prevents the damage of pollutants to the seal and prolongs the service life of the seal. It is an important protective device in the cylinder system and provides important support for the normal operation and reliability of the cylinder.

[0033] Embodiment 2:

[0034] The working principle of the fluid control valve of the utility model is as follows:

[0035] When the P port is supplied with gas, if the pilot solenoid valve 3 is not energized, the anti-leakage pad 8 will be tightly pressed against the crater sealing pad 7 under the force of the spring 4, resulting in the IN port and the OUT port being closed; and once the pilot solenoid valve 3 is energized, the pilot gas will pass through the pilot solenoid valve 3 and enter the lower end of the piston 6, pushing the piston 6 to move upward. This action separates the anti-leakage pad 8 from the crater sealing pad 7, thereby opening the IN port and the OUT port.

[0036] In specific operation, when the pilot solenoid valve 3 is activated, it controls the flow of the pilot gas to enter the lower part of the piston 6. In this way, the piston 6 is subjected to the upward force and the spring 4 is compressed, so that the anti-leakage pad 8 is separated from the crater sealing pad 7. This process is actually to control the opening and closing of the anti-leakage pad 8 by controlling the pilot solenoid valve 3, so as to achieve the purpose of controlling the fluid.

[0037] Through this simple and efficient design, the fluid control valve can quickly and accurately switch the fluid path. When it is necessary to establish or cut off the connection between the IN port and the OUT port, the operation can be completed by simply controlling the power-on state of the pilot solenoid valve 3. This design is not only easy to operate, but also has a fast response speed, and is suitable for fluid control scenarios that require frequent switching.

[0038] In general, the fluid control valve uses the control of the pilot solenoid valve 3 to realize the opening and closing of the anti-leakage pad 8, thereby controlling the state of the fluid passage. This design is simple and intuitive, easy to operate, and suitable for various industrial fields requiring fluid control, improving the flexibility and efficiency of the system.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A new type of fluid control valve, It is characterized in that It comprises a cylinder with a front cover at the bottom, a valve body at the bottom of the cylinder, a pilot solenoid valve at the top of the cylinder, a through hole at the center of the front cover, a piston rod in the through hole, and a crater sealing gasket made of metal material in the inner cavity of the valve body.

2. A novel fluid control valve according to claim 1, It is characterized in that A leak-proof pad made of metal is arranged at the bottom of the piston rod.

3. A novel fluid control valve according to claim 2, It is characterized in that Corresponding fixing holes are provided on both sides of the anti-leakage pad.

4. A novel fluid control valve according to claim 3, It is characterized in that A fixing groove is arranged on the bottom side of the piston rod.

5. A novel fluid control valve according to claim 4, It is characterized in that The fixing groove and the fixing hole are connected by a fixing pin.

6. A novel fluid control valve according to claim 1, It is characterized in that A scraper sleeve and a sealing element are arranged inside the front cover.

7. A novel fluid control valve according to claim 1, It is characterized in that The top of the crater sealing gasket is a sealing surface.

8. A novel fluid control valve according to claim 1, It is characterized in that A piston is arranged in the cylinder, and a spring is arranged on the top of the piston.

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