Piston type pressure regulating valve convenient to install

Abstract

The utility model relates to the field of piston type pressure regulating valves, in particular to a piston type pressure regulating valve convenient to install, and adopts the technical scheme that the piston type pressure regulating valve convenient to install comprises a valve body, a piston, a valve cover, an air inlet, an air outlet, a first sealing ring, a second sealing ring and a third sealing ring, a piston is arranged at the bottom of an inner cavity of the valve body, the top end of the valve body is sleeved with a valve cover, an air inlet penetrating through the inner wall of the valve body is formed in the bottom end of the valve body, and an exhaust hole located on the right side of the air inlet is formed in the bottom end of the valve body. The valve body is sleeved with a second sealing ring located between the air inlet and the air outlet, and the valve body is sleeved with a third sealing ring located above the air inlet. The mounting groove matched with the pressure regulating valve is formed in the dryer, the pressure regulating valve is directly inserted into the mounting groove, water vapor is discharged through the air inlet and the air outlet, the sealing ring can play a role in sealing and fixing, and water vapor leakage is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of piston-type pressure regulating valves, and in particular relates to a piston-type pressure regulating valve which is easy to install. Background Art

[0002] In the process of drying materials, a dryer is often used to remove moisture from the material by heating to achieve the drying effect. During the drying process, the container needs to be kept airtight, which prevents the moisture from being discharged from the dryer. Therefore, a piston-type pressure regulating valve needs to be installed on the dryer.

[0003] At present, most piston-type pressure regulating valves are used to connect to pipelines. Bolts are needed to fix the valve body to the pipeline. This installation method is not suitable for smaller dryers and is likely to increase costs.

[0004] Therefore, the above-mentioned existing piston-type pressure-regulating valve, which requires the use of bolts to fix it when connected to the pipeline, is not suitable for the dryer. The existing piston-type pressure-regulating valve is improved by opening an air inlet and an exhaust port at the lower end of the valve body so that it can be installed and fixed by plugging it into the pipeline, and a sealing ring is used to avoid leakage. Utility Model Content

[0005] In order to overcome the problem that the existing piston-type pressure regulating valve needs to be fixed with a pipeline using bolts and is not suitable for a dryer.

[0006] The technical solution of the utility model is: a piston-type pressure-regulating valve which is easy to install, comprising a valve body, a piston, a valve cover, an air inlet, an exhaust port, a No. 1 sealing ring, a No. 2 sealing ring and a No. 3 sealing ring; a piston is provided at the bottom of the inner cavity of the valve body, a valve cover is sleeved on the top of the valve body, an air inlet which runs through the inner wall of the valve body is provided at the bottom of the valve body, an exhaust hole which is located on the right side of the air inlet is provided at the bottom of the valve body, a No. 1 sealing ring which is located below the air inlet and the exhaust port is sleeved on the valve body, a No. 2 sealing ring which is located between the air inlet and the exhaust port is sleeved on the valve body, and a No. 3 sealing ring which is located above the air inlet is sleeved on the valve body.

[0007] Preferably, a mounting groove matching the pressure regulating valve is opened on the dryer, and the pressure regulating valve is directly plugged into the mounting groove, and water vapor is discharged through the air inlet and exhaust port. The No. 1 sealing ring, the No. 2 sealing ring and the No. 3 sealing ring can play a sealing and fixing role to avoid water vapor leakage. This design makes the piston-type pressure regulating valve simple and portable to install.

[0008] Preferably, the center position of the bottom end of the piston is fixedly connected to a connecting rod located in the valve body. The connecting rod is located above the exhaust port. The gas pressure is used to impact the connecting rod, causing it to move up and down in the valve body, thereby driving the entire piston to move up and down.

[0009] Preferably, a hexagonal screw is threaded into the valve cover, and a spring is provided between the hexagonal screw and the piston. One end of the spring is connected to the bottom end of the hexagonal screw plug, and the other end of the spring is connected to the upper surface of the piston. The spring can adjust the position of the piston, reduce the release of the fluid, and thus stabilize the pressure.

[0010] Preferably, the valve body is composed of a valve cylinder and a fixed column fixedly connected to the bottom end of the valve cylinder, the piston is movably connected to the inside of the valve cylinder, and the valve body is inserted into the hole groove opened on the dryer through the fixed column to realize the fixed installation of the piston pressure regulating valve.

[0011] Preferably, a No. 1 receiving groove is provided at the bottom end of the fixed column above the air inlet, and the No. 3 sealing ring is clamped in the No. 1 receiving groove. The No. 1 receiving groove can limit the No. 3 sealing ring to prevent the No. 3 sealing ring from falling off the fixed column.

[0012] Preferably, a No. 2 receiving groove is provided on the fixed column between the air inlet and the exhaust port, and the No. 2 sealing ring is clamped in the No. 2 receiving groove. The No. 2 receiving groove can limit the No. 2 sealing ring to prevent the No. 2 sealing ring from falling off the fixed column.

[0013] Preferably, a No. 3 receiving groove is provided on the fixed column below the exhaust port, and the No. 1 sealing ring is clamped in the No. 3 receiving groove. The No. 3 receiving groove can limit the No. 1 sealing ring to prevent the No. 1 sealing ring from falling off the fixed column.

[0014] Beneficial effects of the utility model:

[0015] 1. A piston-type pressure regulating valve suitable for dryers is designed, which is easy to install. The dryer is provided with a mounting slot that matches the pressure regulating valve. The pressure regulating valve is directly plugged into the mounting slot, and water vapor is discharged through the air inlet and exhaust ports. The No. 1, No. 2, and No. 3 sealing rings can seal and fix to prevent water vapor leakage. This design makes the piston-type pressure regulating valve easy to install and portable.

[0016] 2. When the inlet fluid pressure is higher than the set pressure, the fluid pushes the piston to move, causing the valve opening height to change, allowing part of the fluid to bypass or change the size of the flow channel to reduce the pressure; on the contrary, when the inlet pressure is lower than the set pressure, the valve will adjust the piston position through the action of internal springs and other components to reduce fluid release and thus stabilize the pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the internal three-dimensional structure of the piston-type pressure regulating valve of the utility model which is easy to install;

[0018] Figure 2 Shown is a schematic diagram of the first three-dimensional structure of the piston-type pressure regulating valve that is easy to install in the utility model;

[0019] Figure 3 Shown is a schematic diagram of a first three-dimensional structure of the valve body of the piston-type pressure regulating valve that is easy to install according to the present invention;

[0020] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the piston and connecting rod of the piston-type pressure regulating valve which is easy to install in the present invention;

[0021] Figure 5 Shown is a schematic diagram of the second three-dimensional structure of the valve body of the piston-type pressure regulating valve which is easy to install according to the present invention.

[0022] Explanation of the accompanying symbols: 1. Valve body; 2. Piston; 3. Valve cover; 4. Air inlet; 5. Exhaust port; 6. Sealing ring No. 1; 7. Sealing ring No. 2; 8. Sealing ring No. 3; 9. Connecting rod; 10. Hexagonal screw; 11. Spring; 12. Storage slot No. 1; 13. Storage slot No. 2; 14. Storage slot No. 3. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 5 The utility model provides an embodiment: a piston 2-type pressure regulating valve with easy installation includes a valve body 1, a piston 2, a valve cover 3, an air inlet 4, an exhaust port 5, a No. 1 sealing ring 6, a No. 2 sealing ring 7 and a No. 3 sealing ring 8; a piston 2 is provided at the bottom of the inner cavity of the valve body 1, a valve cover 3 is sleeved on the top of the valve body 1, an air inlet 4 penetrating the inner wall of the valve body 1 is opened at the bottom of the valve body 1, an exhaust hole is opened at the right side of the air inlet 4 at the bottom of the valve body 1, and a No. 1 sealing ring is sleeved on the valve body 1 below the air inlet 4 and the exhaust port 5. 6. The valve body 1 is sleeved with a No. 2 sealing ring 7 located between the air inlet 4 and the exhaust port 5, and the valve body 1 is sleeved with a No. 3 sealing ring 8 located above the air inlet 4. By opening a mounting groove matching the pressure regulating valve on the dryer, the pressure regulating valve is directly plugged into the mounting groove, and water vapor is discharged through the air inlet 4 and the exhaust port 5. The No. 1 sealing ring 6, the No. 2 sealing ring 7 and the No. 3 sealing ring 8 can play a role of sealing and fixing to avoid water vapor leakage. This design makes the piston type 2 pressure regulating valve simple and portable to install.

[0025] See also Figure 1-Figure 4In this embodiment, the center position of the bottom end of the piston 2 is fixedly connected to a connecting rod 9 located in the valve body 1. The connecting rod 9 is located above the exhaust port 5. A hexagonal screw 10 is screwed into the valve cover 3. A spring 11 is provided between the hexagonal screw 10 and the piston 2. One end of the spring 11 is connected to the bottom end of the hexagonal screw plug, and the other end of the spring 11 is connected to the upper surface of the piston 2. The valve body 1 is composed of a valve cylinder and a fixed column fixedly connected to the bottom end of the valve cylinder. The piston 2 is movably connected to the inside of the valve cylinder. The gas pressure impacts the connecting rod 9, causing it to move up and down in the valve body 1, thereby driving the entire piston 2 to move up and down. The spring 11 can adjust the position of the piston 2, reduce the release of the fluid, and thus stabilize the pressure. The valve body 1 is inserted into the hole groove opened on the dryer through the fixing column to realize the fixed installation of the piston 2 type pressure regulating valve.

[0026] See also Figure 1 、 Figure 5 In this embodiment, a No. 1 receiving groove 12 is provided at the bottom end of the fixed column, which is located above the air inlet 4. The No. 3 sealing ring 8 is clamped in the No. 1 receiving groove 12. A No. 2 receiving groove 13 is provided on the fixed column, which is located between the air inlet 4 and the exhaust port 5. The No. 2 sealing ring 7 is clamped in the No. 2 receiving groove 13. A No. 3 receiving groove 14 is provided on the fixed column, which is located below the exhaust port 5. The No. 1 sealing ring 6 is clamped in the No. 3 receiving groove 14. The No. 1 receiving groove 12 can limit the No. 3 sealing ring 8 to prevent the No. 3 sealing ring 8 from falling off from the fixed column. The No. 2 receiving groove 13 can limit the No. 2 sealing ring 7 to prevent the No. 2 sealing ring 7 from falling off from the fixed column. The No. 3 receiving groove 14 can limit the No. 1 sealing ring 6 to prevent the No. 1 sealing ring 6 from falling off from the fixed column.

[0027] During the work, the staff first clamps the No. 1 sealing ring 6 into the No. 3 receiving groove 14, then clamps the No. 2 sealing ring 7 into the No. 2 receiving groove 13, clamps the No. 3 sealing ring 8 into the No. 1 receiving groove 12, and then inserts the fixing column into the top of the dryer and installs the valve cover 3 onto the valve body 1;

[0028] The pressure of the installed valve is limited. After the dryer is working, it generates water vapor with a certain pressure. When the fluid pressure at the air inlet 4 is higher than the set pressure, the fluid pushes the piston 2 to move, causing the valve opening degree to change, allowing part of the fluid to bypass or change the size of the flow channel to reduce the pressure; on the contrary, when the pressure at the air inlet 4 is lower than the set pressure, the valve will adjust the position of the piston 2 through the action of the internal spring 11 and other components to reduce the fluid release and thus stabilize the pressure.

[0029] Through the above steps, a piston 2-type pressure regulating valve that is easy to install and suitable for a dryer is designed. A mounting groove that matches the pressure regulating valve is provided on the dryer. The pressure regulating valve is directly plugged into the mounting groove, and water vapor is discharged through the air inlet 4 and the exhaust port 5. The No. 1 sealing ring 6, the No. 2 sealing ring 7 and the No. 3 sealing ring 8 can play a sealing and fixing role to prevent water vapor leakage. This design makes the piston 2-type pressure regulating valve simple and portable to install, thereby solving the problem that the existing piston 2-type pressure regulating valve needs to be fixed with bolts when connected to the pipeline and is not suitable for dryers.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A piston-type pressure regulating valve with easy installation, comprising a valve body (1), a piston (2) and a valve cover (3); characterized in that: The valve body (1) further comprises an air inlet (4), an air outlet (5), a No. 1 sealing ring (6), a No. 2 sealing ring (7) and a No. 3 sealing ring (8); a piston (2) is provided at the bottom of the inner cavity of the valve body (1); a valve cover (3) is sleeved on the top of the valve body (1); an air inlet (4) penetrating the inner wall of the valve body (1) is provided at the bottom of the valve body (1); an exhaust hole is provided at the bottom of the valve body (1) on the right side of the air inlet (4); a No. 1 sealing ring (6) located below the air inlet (4) and the exhaust port (5) is sleeved on the valve body (1); a No. 2 sealing ring (7) located between the air inlet (4) and the exhaust port (5) is sleeved on the valve body (1); and a No. 3 sealing ring (8) located above the air inlet (4) is sleeved on the valve body (1).

2. The easy-to-install piston-type pressure regulating valve according to claim 1, characterized in that: A connecting rod (9) located in the valve body (1) is fixedly connected to the center position of the bottom end of the piston (2), and the connecting rod (9) is located above the exhaust port (5).

3. The easy-to-install piston-type pressure regulating valve according to claim 2, characterized in that: A hexagonal screw (10) is screwed into the valve cover (3), and a spring (11) is provided between the hexagonal screw (10) and the piston (2). One end of the spring (11) is connected to the bottom end of the hexagonal screw plug, and the other end of the spring (11) is connected to the upper surface of the piston (2).

4. The easy-to-install piston-type pressure regulating valve according to claim 3, characterized in that: The valve body (1) is composed of a valve cylinder and a fixed column fixedly connected to the bottom end of the valve cylinder, and the piston (2) is movably connected to the inside of the valve cylinder.

5. The piston-type pressure regulating valve with easy installation according to claim 4, characterized in that: The bottom end of the fixed column is provided with a No. 1 receiving groove (12) located above the air inlet (4), and the No. 3 sealing ring (8) is clamped in the No. 1 receiving groove (12).

6. The easy-to-install piston-type pressure regulating valve according to claim 5, characterized in that: A second receiving groove (13) is provided on the fixed column and is located between the air inlet (4) and the air outlet (5), and the second sealing ring (7) is clamped in the second receiving groove (13).

7. The easy-to-install piston-type pressure regulating valve according to claim 6, characterized in that: A No. 3 receiving groove (14) is provided on the fixed column and is located below the exhaust port (5), and the No. 1 sealing ring (6) is clamped in the No. 3 receiving groove (14).

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