Pneumatic single-seat regulating valve

Abstract

The utility model discloses a pneumatic single-seat adjusting valve which comprises a connecting seat, an open groove is formed in the connecting seat, a rotating ring is rotationally connected to the inner wall of the circumferential side face of the open groove, a circular ring groove is formed in the top of the rotating ring, and a circular ring is rotationally connected to the top of the circumferential side face of the circular ring groove. At least two movable columns are slidably connected between the top and the bottom of the circular ring, the bottom of the circular ring groove is evenly and fixedly connected with extrusion columns with the heights gradually reduced, and one face of each movable column is in meshed connection with a second gear. By arranging the ball body, the device is connected to an external pipeline through the connecting base, the pressure borne by the diaphragm is changed through the opening to drive the moving column to move, the moving column drives the moving frame to move, the moving frame drives the rotating shaft to move, the rotating shaft drives the ball body to move, and the motor is started after the ball body works for a certain time and drives the rotating shaft to rotate; the rotating shaft drives the first gear to rotate, the first gear drives the rotating ring to rotate, and the rotating ring drives the extrusion column to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of single-seat regulating valves, in particular to a pneumatic single-seat regulating valve. Background Art

[0002] A pneumatic single-seat regulating valve can be used to control the flow rate in places where it is necessary to control the flow rate of the pipeline, such as the utility model patent with application number 202121361825.8, which is named a pneumatic single-seat regulating valve. The patented device can observe the displacement of the valve stem in real time through the positioning block and positioning rod in the pneumatic limiter, thereby controlling the opening and closing of the opening and closing port, thereby controlling the size of the flow rate, and the pneumatic positioner and the valve stem are connected by a linkage rod. When the valve stem moves, the linkage rod is driven to rotate, so that the pneumatic positioner works, and the pneumatic actuator is inflated through the air pipe to make the pneumatic actuator in a stable state, which is convenient for positioning the new stop position of the valve stem to adapt to fluids of different pressures, and the accuracy is relatively high. The entire components cooperate with each other, so that the pressure resistance of the utility model is enhanced, the flow accuracy is improved, and it is suitable for fluids of different pressures; however, the valve core of the patented device will produce scratches and depressions when it rubs and collides with the device and small particles in the flow, resulting in reduced sealing when the device is adjusted, affecting the working effect of the device. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a pneumatic single-seat regulating valve.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A pneumatic single-seat regulating valve comprises a connecting seat, a groove is provided inside the connecting seat, a rotating ring is rotatably connected to the inner wall of the circumferential side of the groove, a circular ring groove is provided on the top of the rotating ring, a circular ring groove is rotatably connected to the top of the circumferential side of the circular ring groove, at least two movable columns are slidably connected between the top and the bottom of the circular ring, an extrusion column with a gradually decreasing height is evenly fixedly connected to the bottom of the circular ring groove, one side of the movable column is meshingly connected to gear 2, a rotating shaft is fixedly connected to the side of gear 2, a sphere aligned with the rotating ring is fixedly connected to the circumferential side of the rotating shaft, and the circumferential side of the sphere abuts against the inner wall of the circumferential side of the rotating ring.

[0006] Preferably, the top outer wall of the connecting seat is fixedly connected to the top seat, a lifting groove is opened between the inside of the top seat and the top inner wall of the connecting seat, and a movable frame aligned with the sphere is slidably connected between the inner walls on both sides of the lifting groove.

[0007] Preferably, a support groove is opened inside the movable frame, the side surface of the gear is rotatably connected to the side inner wall of the support groove, the circumferential side surface of the rotating shaft is rotatably connected to the inside of the side surface of the movable frame, the side surface of the movable column is slidably connected to the side inner wall of the support groove, and a spring is fixedly connected between the top of the movable column and the top inner wall of the support groove.

[0008] Preferably, both sides of the mobile frame are fixedly connected with connecting rings, the inner wall of the circumferential side of the connecting ring is fixedly connected with a cleaning belt, the circumferential side of the sphere is rotatably connected to the inner wall of the circumferential side of the cleaning belt, and the top of the connecting ring is fixedly connected with a protective cover surrounding the sphere.

[0009] Preferably, a motor is fixedly connected to the inside of the connecting seat, the output shaft of the motor is fixedly connected to the rotating shaft, the other end of the rotating shaft is fixedly connected to gear one, the bottom of gear one is rotatably connected to the inside of the connecting seat, and the circumferential side surface of gear one is meshedly connected to the outer wall of the circumferential side surface of the rotating ring.

[0010] Preferably, a membrane chamber is fixedly connected to the top of the top seat, an opening is provided between the top inner wall and the outer wall of the membrane chamber, and a membrane is fixedly connected to the inner wall of the circumferential side of the membrane chamber.

[0011] Preferably, a moving column aligned with the moving frame is fixedly connected to the bottom of the diaphragm, a circumferential side surface of the moving column is slidably connected to the inside of the top seat, and a bottom of the moving column is fixedly connected to the top of the moving frame.

[0012] Compared with the prior art, the utility model provides a pneumatic single-seat regulating valve, which has the following beneficial effects:

[0013] By setting the sphere, the device is connected to the external pipe through the connecting seat, and the pressure on the diaphragm is changed by the opening to drive the moving column to move, the moving column drives the moving frame to move, the moving frame drives the rotating shaft to move, and the rotating shaft drives the sphere to move. After the sphere has worked for a certain period of time, the motor is started, the motor drives the rotating shaft to rotate, the rotating shaft drives the gear one to rotate, the gear one drives the rotating ring to rotate, and the rotating ring drives the extrusion column to rotate, so that the extrusion columns of different heights squeeze the movable column, the movable column drives the gear two to rotate, the gear two drives the rotating shaft to rotate, and the rotating shaft drives the sphere to rotate, so that the sphere rotates a certain angle, and different parts of the sphere contact the rotating ring, which is beneficial for the device to change the contact part between the sphere and the rotating ring, so as to prevent the small half of the sphere facing the center of the rotating ring and the part released from the rotating ring from being scratched and depressed due to the friction and collision between the rotating ring and small particles, resulting in reduced sealing of the device during adjustment, affecting the working effect of the device, and the cleaning belt and the connecting ring clean and protect the sphere, which is beneficial for preventing the part of the sphere located inside the protective sleeve from being damaged, and further improving the sealing of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a schematic diagram of the overall structure of a pneumatic single-seat regulating valve proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a pneumatic single-seat regulating valve proposed by the utility model;

[0016] Figure 3 This is a partial structural schematic diagram of a pneumatic single-seat regulating valve proposed by the utility model;

[0017] Figure 4 for Figure 2 A schematic diagram of the enlarged structure in the middle.

[0018] In the figure: 1-connecting seat, 2-rotating ring, 3-slot, 4-gear one, 5-rotating shaft, 6-motor, 7-movable frame, 8-top seat, 9-lifting slot, 10-moving column, 11-membrane chamber, 12-opening, 13-diaphragm, 14-sphere, 15-rotating shaft, 16-cleaning belt, 17-connecting ring, 18-spring, 19-circular ring groove, 20-movable column, 21-extrusion column, 22-circular ring, 23-gear two, 24-support groove, 25-protective cover. DETAILED DESCRIPTION

[0019] Example 1: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A pneumatic single-seat regulating valve comprises a connecting seat 1, a groove 3 is provided inside the connecting seat 1, a rotating ring 2 is rotatably connected to the inner wall of the circumferential side of the groove 3, a circular groove 19 is provided on the top of the rotating ring 2, a circular ring 22 is rotatably connected to the top of the circumferential side of the circular groove 19, at least two movable columns 20 are slidably connected between the top and the bottom of the circular ring 22, an extrusion column 21 with a gradually decreasing height is evenly fixedly connected to the bottom of the circular groove 19, a gear 23 is meshedly connected to one side of the movable column 20, a rotating shaft 15 is fixedly connected to the side of the gear 23, a sphere 14 aligned with the rotating ring 2 is fixedly connected to the circumferential side of the rotating shaft 15, and the circumferential side of the sphere 14 abuts against the inner wall of the circumferential side of the rotating ring 2.

[0020] In the utility model, a top seat 8 is fixedly connected to the top outer wall of the connecting seat 1, a lifting groove 9 is opened between the inside of the top seat 8 and the top inner wall of the connecting seat 1, and a movable frame 7 aligned with the sphere 14 is slidably connected between the inner walls on both sides of the lifting groove 9.

[0021] A support groove 24 is opened inside the movable frame 7, the side surface of the gear is rotatably connected to the side inner wall of the support groove 24, the circumferential side surface of the rotating shaft 15 is rotatably connected to the inside of the side surface of the movable frame 7, the side surface of the movable column 20 is slidably connected to the side inner wall of the support groove 24, and a spring 18 is fixedly connected between the top of the movable column 20 and the top inner wall of the support groove 24.

[0022] Both sides of the mobile frame 7 are fixedly connected with a connecting ring 17, the inner wall of the circumferential side of the connecting ring 17 is fixedly connected with a cleaning belt 16, and the circumferential side of the sphere 14 is rotatably connected to the inner wall of the circumferential side of the cleaning belt 16. The top of the connecting ring 17 is fixedly connected with a protective cover 25 surrounding the sphere 14.

[0023] The inside of the connecting seat 1 is fixedly connected to a motor 6, the output shaft of the motor 6 is fixedly connected to a rotating shaft 5, the other end of the rotating shaft 5 is fixedly connected to a gear 4, the bottom of the gear 4 is rotatably connected to the inside of the connecting seat 1, and the circumferential side surface of the gear 4 is meshedly connected to the outer wall of the circumferential side surface of the rotating ring 2.

[0024] A membrane chamber 11 is fixedly connected to the top of the top seat 8 , an opening 12 is provided between the top inner wall and the outer wall of the membrane chamber 11 , and a membrane 13 is fixedly connected to the inner wall of the circumferential side of the membrane chamber 11 .

[0025] The bottom of the diaphragm 13 is fixedly connected to a moving column 10 aligned with the moving frame 7 , the circumferential side surface of the moving column 10 is slidably connected to the inside of the top seat 8 , and the bottom of the moving column 10 is fixedly connected to the top of the moving frame 7 .

[0026] Working principle: The device is connected to the external pipeline through the connecting seat 1, and the pressure on the diaphragm 13 is changed through the opening 12 to drive the moving column 10 to move, the moving column 10 drives the moving frame 7 to move, the moving frame 7 drives the rotating shaft 15 to move, the rotating shaft 15 drives the sphere 14 to move, and the sphere 14 starts the motor 6 after working for a certain period of time, the motor 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the gear 1 4 to rotate, the gear 1 4 drives the rotating ring 2 to rotate, and the rotating ring 2 drives the extrusion column 21 to rotate, so that the extrusion columns 21 of different heights squeeze the movable column 20, the movable column 20 drives the gear 2 23 to rotate, and the gear 2 23 drives the rotating shaft 15 to rotate. The rotating shaft 15 drives the sphere 14 to rotate, so that the sphere 14 rotates a certain angle, and different parts of the sphere 14 are in contact with the rotating ring 2. This is beneficial for the device to change the contact part between the sphere 14 and the rotating ring 2 to prevent the small half of the sphere 14 facing the center of the rotating ring 2 and the part released from the rotating ring 2 from being scratched and dented due to the friction and collision between the rotating ring 2 and small particles, resulting in reduced sealing during adjustment of the device and affecting the working effect of the device. The cleaning belt 16 and the connecting ring 17 clean and protect the sphere 14, which is beneficial to prevent the part of the sphere 14 located inside the protective cover 25 from being damaged, thereby further improving the sealing of the device.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pneumatic single-seat regulating valve, comprising a connecting seat (1), characterized in that: The connection seat (1) has a slot (3) formed inside, the inner wall of the circumferential side of the slot (3) is rotatably connected to a rotating ring (2), the top of the rotating ring (2) has a circular groove (19), the top of the circumferential side of the circular groove (19) is rotatably connected to a circular ring (22), at least two movable columns (20) are slidably connected between the top and bottom of the circular ring (22), the bottom of the circular groove (19) is evenly fixedly connected to an extrusion column (21) with a gradually decreasing height, one side of the movable column (20) is meshingly connected to a second gear (23), the side of the second gear (23) is fixedly connected to a rotating shaft (15), the circumferential side of the rotating shaft (15) is fixedly connected to a sphere (14) aligned with the rotating ring (2), the circumferential side of the sphere (14) abuts against the inner wall of the circumferential side of the rotating ring (2).

2. A pneumatic single-seat regulating valve according to claim 1, characterized in that: The top outer wall of the connecting seat (1) is fixedly connected to a top seat (8), a lifting groove (9) is provided between the inside of the top seat (8) and the top inner wall of the connecting seat (1), and a moving frame (7) aligned with the ball (14) is slidably connected between the inner walls on both sides of the lifting groove (9).

3. A pneumatic single-seat regulating valve according to claim 2, characterized in that: A support groove (24) is provided inside the movable frame (7), the side surface of the gear is rotatably connected to the side inner wall of the support groove (24), the circumferential side surface of the rotating shaft (15) is rotatably connected to the inside of the side surface of the movable frame (7), the side surface of the movable column (20) is slidably connected to the side inner wall of the support groove (24), and a spring (18) is fixedly connected between the top of the movable column (20) and the top inner wall of the support groove (24).

4. A pneumatic single-seat regulating valve according to claim 3, characterized in that: Both sides of the movable frame (7) are fixedly connected to connecting rings (17), the inner wall of the circumferential side surface of the connecting ring (17) is fixedly connected to a cleaning belt (16), the circumferential side surface of the spherical body (14) is rotatably connected to the inner wall of the circumferential side surface of the cleaning belt (16), and the top of the connecting ring (17) is fixedly connected to a protective sleeve (25) surrounding the spherical body (14).

5. A pneumatic single-seat regulating valve according to claim 4, characterized in that: The interior of the connecting seat (1) is fixedly connected to a motor (6); the output shaft of the motor (6) is fixedly connected to a rotating shaft (5); the other end of the rotating shaft (5) is fixedly connected to a gear one (4); the bottom of the gear one (4) is rotatably connected to the interior of the connecting seat (1); and the circumferential side surface of the gear one (4) is meshingly connected to the outer wall of the circumferential side surface of the rotating ring (2).

6. A pneumatic single-seat regulating valve according to claim 5, characterized in that: The top of the top seat (8) is fixedly connected to a membrane chamber (11), an opening (12) is provided between the top inner wall and the outer wall of the membrane chamber (11), and a membrane sheet (13) is fixedly connected to the inner wall of the circumferential side of the membrane chamber (11).

7. A pneumatic single-seat regulating valve according to claim 6, characterized in that: The bottom of the diaphragm (13) is fixedly connected to a moving column (10) aligned with the moving frame (7); the circumferential side surface of the moving column (10) is slidably connected to the inside of the top seat (8); and the bottom of the moving column (10) is fixedly connected to the top of the moving frame (7).

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