Pneumatic valve convenient to maintain

Abstract

The utility model relates to the technical field of pneumatic valve maintenance, and discloses a pneumatic valve convenient to maintain, which comprises a shell, the left side and the right side of the shell are respectively in threaded connection with a left end cover and a right end cover, the bottom of the shell is provided with a communicating groove, and the left end and the right end of the communicating groove are respectively communicated with the right side of the left end cover and the left side of the right end cover. A communicating groove is formed in the shell, a cleaning assembly is mounted on the inner wall of the communicating groove, a moving groove is formed in the shell, a plugging assembly is mounted in the moving groove and comprises a mounting disc, and the mounting disc is in threaded connection to the inner wall of the moving groove. By arranging the plugging assembly and the cleaning assembly, when the device needs to be overhauled, the left end cover and the right end cover are rotated respectively, so that the shell is exposed, then bolts on the cover plate are rotated, so that the cover plate is separated from the long cylinder, and finally, a series of assemblies such as the plugging disc and the mounting disc are rotated to be separated from the long cylinder, so that all parts in the device are disassembled; and the device can be conveniently overhauled.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic valve maintenance, in particular to a pneumatic valve which is easy to maintain. Background Art

[0002] Pneumatic control valves use compressed gas as the power source and cylinders as actuators, and are driven by accessories such as valve positioners, converters, solenoid valves, position-holding valves, gas storage tanks, and gas filters to achieve switching or proportional regulation. They receive control signals from industrial automation control systems to adjust various process parameters of pipeline media, such as flow, pressure, temperature, and liquid level. The characteristics of pneumatic control valves are simple control, fast response, and inherent safety, without the need for additional explosion-proof measures.

[0003] The Chinese utility model patent with announcement number CN219689227U discloses a pneumatic regulating valve that is easy to clean and maintain. By setting up structures such as a plug-in strip, a locking strip, a locking spring, a transfer block, a rotating shaft and a torsion spring, when the diaphragm needs to be replaced, just pull the locking strip outward, and the locking strip will move outward from the limit hole on the plug-in strip. At the same time, the plug-in strip is driven to move upward rapidly under the action of the restoring force of the compression spring on the bottom side. When it is completely out of the limit block, the upper box cover is driven to move quickly away from the lower closing cover under the action of the restoring force of the torsion spring in the rotating hole, exposing the diaphragm for easy replacement.

[0004] Regarding the above-mentioned related technologies, the inventor believes that the following defects exist: after the device has been used for a long time, some impurities may exist in the pneumatic valve, and it is necessary to remove impurities in the places where water flows to avoid accumulation of impurities and blockage of the device. At the same time, it is inconvenient to disassemble the various parts separately during maintenance of the device, which makes it difficult to repair the device. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the utility model provides a pneumatic valve that is easy to maintain.

[0006] The utility model is implemented by the following technical solutions: a pneumatic valve that is easy to maintain, comprising a shell, a left end cover and a right end cover are respectively threadedly connected on the left and right sides of the shell, a connecting groove is provided at the bottom of the shell, the left and right ends of the connecting groove are respectively connected to the right side of the left end cover and the left side of the right end cover, a cleaning assembly is installed on the inner wall of the connecting groove, a movable groove is provided inside the shell, and a blocking assembly is installed in the movable groove.

[0007] The blocking assembly includes a mounting plate, which is threadedly connected to the inner wall of the movable groove. Two spring rods are fixedly connected to the left side of the mounting plate, a piston rod is fixedly connected to the left side of the spring rod, and the left end of the piston rod is fixedly connected to the blocking plate.

[0008] The cleaning assembly includes an arc-shaped plate, the bottom of the arc-shaped plate is slidably connected to a limit plate fixedly connected to the bottom of the inner wall of the communicating groove, the left side of the arc-shaped plate is fixedly connected to a long rod, and the left side of the long rod is fixedly connected to an annular disk.

[0009] As a further improvement of the above scheme, a water outlet is provided on the right side of the right end cover, a water inlet is provided on the left side of the left end cover, a movable groove connected to the water inlet is provided on the right side of the left end cover, an annular groove is provided on the inner wall of the movable groove, and an annular disk is arranged inside the annular groove. The water inlet facilitates the entry of water, and the water outlet facilitates the outflow of water. The movable groove provides space for the movement of the sealing disk, and the annular groove is used to drive the annular disk to move together.

[0010] As a further improvement of the above solution, the spring rod includes a sleeve, and a sliding rod is slidably connected to the inside of the sleeve. One side of the sliding rod and one side of the inner wall of the sleeve are connected by a spring, which facilitates the piston rod to be reset.

[0011] As a further improvement of the above solution, the shell includes a long cylinder, and the left side of the long cylinder is connected to a cover plate adapted to the long cylinder by bolts, so as to facilitate the disassembly and installation of the shell.

[0012] As a further improvement of the above solution, a groove adapted to the limiting plate is provided at the bottom of the arc plate to ensure the normal operation of the arc plate.

[0013] As a further improvement to the above solution, two limit blocks are fixedly connected to the surface of the sealing disk to ensure the normal operation of the sealing disk.

[0014] As a further improvement of the above scheme, an air inlet groove is opened on the top of the shell, and a ventilation pipe is threadedly connected to the air inlet groove. An air inlet hole is opened at the axis center of the mounting plate, and the air inlet hole is connected to the bottom end of the air inlet groove, which facilitates ventilation into the device.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model is provided with a blocking assembly and a cleaning assembly. When the device needs to be repaired, the left end cover and the right end cover are rotated respectively to expose the shell, and then the bolts on the cover are rotated to separate the cover from the long cylinder. Finally, the blocking disk, the mounting disk and a series of components are rotated to separate from the long cylinder, so that the various components in the device can be disassembled, which is convenient for repair work on the device.

[0017] 2. The utility model is provided with a cleaning component. During the disassembly process, the left end cover is rotated so that the left end cover gradually separates from the shell. At the same time, under the action of the annular groove, the annular disk moves along with the annular groove, so that the long rod moves outward with the arc plate, bringing out the impurities in the connecting groove together, making it convenient to clean the impurities generated during use and improving the cleaning efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the motor, air intake slot and vent pipe of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the annular disk, annular groove and arc plate of the utility model.

[0021] Description of main symbols:

[0022] 1. Shell; 2. Left end cover; 3. Right end cover; 4. Mounting plate; 5. Spring rod; 6. Piston rod; 7. Sealing plate; 8. Arc plate; 9. Limit plate; 10. Long rod; 11. Annular plate; 12. Air inlet groove; 13. Connecting groove; 14. Moving groove; 15. Annular groove; 16. Vent pipe. DETAILED DESCRIPTION

[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example:

[0025] Please combine Figure 1-3 , a pneumatic valve that is easy to maintain in this embodiment includes a shell 1, which includes a long cylinder. The left side of the long cylinder is connected to a cover plate that is compatible with the long cylinder by bolts, which is convenient for disassembly and installation of the shell 1. The left and right sides of the shell 1 are respectively threadedly connected with a left end cover 2 and a right end cover 3. A connecting groove 13 is provided at the bottom of the shell 1, and the left and right ends of the connecting groove 13 are respectively connected to the right side of the left end cover 2 and the left side of the right end cover 3. A cleaning component is installed on the inner wall of the connecting groove 13, and a movable groove 14 is provided inside the shell 1, and a blocking component is installed in the movable groove 14.

[0026] The blocking assembly is used to control the cutoff and circulation of water flow. The blocking assembly includes a mounting plate 4. An air inlet groove 12 is provided on the top of the shell 1. The air inlet groove 12 is threadedly connected to a vent pipe 16. An air inlet hole is provided at the axis of the mounting plate 4. The air inlet hole is connected to the bottom end of the air inlet groove 12, which is convenient for ventilation into the device. The mounting plate 4 is threadedly connected to the inner wall of the movable groove 14. Two spring rods 5 are fixedly connected to the left side of the mounting plate 4. The left side of the spring rod 5 is fixedly connected to a piston rod 6. The spring rod 5 includes a sleeve. The interior of the sleeve is slidably connected to a sliding rod. One side of the sliding rod and one side of the inner wall of the sleeve are connected by a spring, which is convenient for driving the piston rod 6 to reset. The left end of the piston rod 6 is fixedly connected to a blocking plate 7. Two limit blocks are fixedly connected to the surface of the blocking plate 7 to ensure the normal operation of the blocking plate 7.

[0027] The cleaning assembly is used to clean impurities generated during use. The cleaning assembly includes an arc-shaped plate 8. The bottom of the arc-shaped plate 8 is slidably connected to a limit plate 9 fixedly connected to the bottom of the inner wall of the communicating groove 13. The bottom of the arc-shaped plate 8 is provided with a groove adapted to the limit plate 9 to ensure the normal operation of the arc-shaped plate 8. The left side of the arc-shaped plate 8 is fixedly connected to a long rod 10, and the left side of the long rod 10 is fixedly connected to an annular disk 11. A water outlet is provided on the right side of the right end cover 3, and a water inlet is provided on the left side of the left end cover 2. A movable groove connected to the water inlet is provided on the right side of the left end cover 2. The inner wall of the movable groove is provided with an annular groove 15. The annular disk 11 is arranged inside the annular groove 15. The water inlet facilitates the entry of water, and the water outlet facilitates the outflow of water. The movable groove provides space for the movement of the sealing disk 7, and the annular groove 15 is used to drive the annular disk 11 to move together.

[0028] The implementation principle of a pneumatic valve that is easy to maintain in the embodiment of the present application is as follows: when the device is in use, air is ventilated into the air inlet groove 12 through the vent pipe 16, so that the gas passes through the mounting plate 4 and blows toward the piston rod 6, causing the piston rod 6 to move toward the left end cover 2 with the blocking plate 7, thereby blocking the water inlet and completing the cutoff of the water flow. At the same time, when water circulation is required, the vent pipe 16 leaves the air inlet groove 12, and under the action of the spring rod 5, the piston rod 6 with the blocking plate 7 is restored to its initial state, so that the water flows from the water inlet into the connecting groove 13, and then flows to the water outlet, which facilitates the device to control the cutting off and circulation of the water flow.

[0029] When the device needs to be repaired, the left end cover 2 and the right end cover 3 are rotated respectively to separate the left end cover 2 and the right end cover 3 from the shell 1, so that the shell 1 is exposed, and then the bolts on the cover are rotated to separate the cover from the long cylinder, and finally the sealing disk 7 is rotated to separate the sealing disk 7, the mounting disk 4, the spring rod 5 and the piston rod 6 from the long cylinder, so that the various components in the device are disassembled, which is convenient for maintenance work on the device.

[0030] During the disassembly process, the left end cover 2 rotates, causing the left end cover 2 to gradually separate from the shell 1. At the same time, under the action of the annular groove 15, the annular disk 11 moves along with the annular groove 15, so that the long rod 10 moves outward with the arc plate 8, bringing out the impurities in the connecting groove 13, making it convenient to clean the impurities generated during use and improving the cleaning efficiency of the device.

[0031] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A pneumatic valve that is easy to maintain, characterized in that: The invention comprises a shell (1), wherein the left end cover (2) and the right end cover (3) are respectively threadedly connected to the left and right sides of the shell (1), a communicating groove (13) is provided at the bottom of the shell (1), and the left and right ends of the communicating groove (13) are respectively connected to the right side of the left end cover (2) and the left side of the right end cover (3), a cleaning component is installed on the inner wall of the communicating groove (13), and a movable groove (14) is provided inside the shell (1), and a blocking component is installed in the movable groove (14); The blocking assembly comprises a mounting plate (4), the mounting plate (4) being threadedly connected to the inner wall of the movable groove (14), two spring rods (5) being fixedly connected to the left side of the mounting plate (4), a piston rod (6) being fixedly connected to the left side of the spring rod (5), and a blocking plate (7) being fixedly connected to the left end of the piston rod (6); The cleaning assembly comprises an arc-shaped plate (8), the bottom of the arc-shaped plate (8) is slidably connected to a limit plate (9) fixedly connected to the bottom of the inner wall of the connecting groove (13), the left side of the arc-shaped plate (8) is fixedly connected to a long rod (10), and the left side of the long rod (10) is fixedly connected to an annular disk (11).

2. A pneumatic valve easy to maintain as claimed in claim 1, characterized in that: A water outlet is provided on the right side of the right end cover (3), a water inlet is provided on the left side of the left end cover (2), a movable groove connected to the water inlet is provided on the right side of the left end cover (2), an annular groove (15) is provided on the inner wall of the movable groove, and the annular disk (11) is arranged inside the annular groove (15).

3. A pneumatic valve easy to maintain as claimed in claim 1, characterized in that: The spring rod (5) comprises a sleeve, the interior of the sleeve is slidably connected to a slide rod, and one side of the slide rod and one side of the inner wall of the sleeve are connected via a spring.

4. A pneumatic valve easy to maintain as claimed in claim 1, characterized in that: The housing (1) comprises a long cylinder, and a cover plate adapted to the long cylinder is connected to the left side of the long cylinder via bolts.

5. The pneumatic valve easy to maintain according to claim 1, characterized in that: The bottom of the arc-shaped plate (8) is provided with a groove adapted to the limiting plate (9).

6. The pneumatic valve easy to maintain according to claim 1, characterized in that: Two limiting blocks are fixedly connected to the surface of the blocking disk (7).

7. The pneumatic valve easy to maintain according to claim 1, characterized in that: An air inlet groove (12) is provided on the top of the housing (1), a vent pipe (16) is connected to the inner thread of the air inlet groove (12), and an air inlet hole is provided at the axis of the mounting plate (4), the air inlet hole being connected to the bottom end of the air inlet groove (12).

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