Pneumatic valve with high sealing performance

Abstract

The utility model provides a pneumatic valve with high sealing performance, which relates to the technical field of pneumatic valves and comprises two breather pipes, a pneumatic actuator is mounted between one sides of the outer walls of the two breather pipes, a first protective frame is fixedly mounted at the top of the pneumatic actuator, and a connecting rod is movably inserted into the top of the inner wall of the first protective frame. The outer surface wall of the connecting rod is movably inserted into the pneumatic actuator; according to the device, the positive and negative motor is started to drive the threaded rod to rotate in the limiting block, the sliding block installed at the bottom of the tooth row is movably embedded in the limiting groove, so that the tooth row is driven to move back and forth on the threaded rod, and the top of the connecting rod is rotationally connected to the top of the inner wall of the first protection frame; meanwhile, the high-sealing-performance pneumatic valve is movably inserted into the pneumatic actuator, the gear, the connecting rod and the ball valve are driven to rotate through the tooth row, opening and closing of the valve are achieved, the sealing performance of the high-sealing-performance pneumatic valve is high, and the using effect of the high-sealing-performance pneumatic valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic valve technical field especially relates to a kind of high sealing property pneumatic valve. BACKGROUND

[0002] Pneumatic valve is a kind of using gas (usually compressed air) as power source to realize the opening and closing and regulating device of valve, this kind of valve is usually composed of pneumatic actuator and valve body two parts, actuator drives the opening and closing of valve by gas pressure.

[0003] In prior art, pneumatic valve controls the flow amount of fluid (such as gas, liquid) by adjusting the opening of valve, but the opening mode of existing valve is driven by cylinder to operate valve, and cooperates with spring rebound type to close valve, so the sealing property is not high, thereby reducing the use effect of the pneumatic valve. UTILITY MODEL CONTENTS

[0004] The utility model mainly provides a kind of high sealing property, improve the use effect of high sealing property pneumatic valve of pneumatic valve.

[0005] In order to realize the above-mentioned purpose, the utility model has adopted the following technical scheme: a kind of high sealing property pneumatic valve, including two air pipes, the outer wall one side between two the air pipe is installed pneumatic actuator, the top of the pneumatic actuator is fixedly installed first protective frame, the inner wall top of the first protective frame is movably inserted connecting rod, and the outer surface wall of connecting rod is movably inserted in the inside of pneumatic actuator, the bottom of the connecting rod is fixedly installed ball valve, the outer surface wall of the connecting rod is fixedly installed gear, the top of the pneumatic actuator is fixedly installed positive and negative motor, the outer wall one side of the positive and negative motor is fixedly installed threaded rod, the outer surface wall of the threaded rod is threadedly connected gear row, and the outer wall one side of gear row is engagedly connected with the outer surface wall of gear.

[0006] Preferably, the top of the pneumatic actuator is fixedly installed limit block, the top of the pneumatic actuator is provided with limit slot, the threaded rod is rotated in the inside of limit block, so that gear row can move on threaded rod.

[0007] Preferably, the inner surface wall of the limit slot is movably embedded sliding block, and the top of the sliding block is fixedly connected with the bottom of the gear row, the sliding block and the limit slot act, so that gear row can stably move back and forth on threaded rod.

[0008] Preferably, the top of the pneumatic actuator is provided with positioning slot, the inner surface wall of the positioning slot is movably inserted positioning strip, the positioning slot and the positioning strip act, to facilitate quickly placing second protective frame in corresponding position.

[0009] Preferably, the top of the positioning strip is fixedly installed with a second protective frame, and the top of the first protective frame is fixedly installed with two fixed blocks.

[0010] Preferably, the top of the second protective frame is fixedly installed with two mounting blocks, the top of each of the two mounting blocks is fixedly installed with a square hole, and the outer walls of the two fixed blocks are movably inserted into the interiors of the two square holes.

[0011] Preferably, the top of each of the two fixed blocks is threadedly connected with a bolt, and the outer walls of the two bolts are movably sleeved with lock blocks.

[0012] Compared with the prior art, the high-sealing pneumatic valve has the advantages and positive effects that,

[0013] 1. In the high-sealing pneumatic valve, the forward-reverse motor is started to drive the threaded rod to rotate in the interior of the limiting block, and under the action of the limiting groove and the sliding block, the gear rack is driven to move back and forth on the threaded rod, thereby driving the gear, the connecting rod and the ball valve to rotate and realizing the opening and closing of the valve.

[0014] 2. In the high-sealing pneumatic valve, the forward-reverse motor, the gear rack and the gear are protected by the first protective frame and the second protective frame, and under the action of the positioning groove and the positioning strip, the second protective frame can be quickly placed at the corresponding position, and the two fixed blocks can be quickly inserted into the two square holes. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective view of the high-sealing pneumatic valve is provided for the utility model.

[0016] Figure 2 A front view of the high-sealing pneumatic valve is provided for the utility model.

[0017] Figure 3 A partial exploded view of the high-sealing pneumatic valve is provided for the utility model.

[0018] Figure 4Part of the high sealing pneumatic valve of the utility model shows a schematic diagram.

[0019] Legend:

[0020] 1, ventilation pipe; 2, pneumatic actuator; 3, first protective frame; 4, connecting rod; 5, ball valve; 6, gear; 7, forward and reverse motor; 8, threaded rod; 9, gear row; 10, limit block; 12, limit groove; 13, sliding block; 14, positioning groove; 15, positioning strip; 16, second protective frame; 17, fixed block; 18, mounting block; 19, square hole; 20, bolt; 21, lock block. Specific embodiments

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described below in conjunction with the drawings and examples. It should be noted that the examples and features in the examples of the present application can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific embodiments disclosed in the following disclosure.

[0023] Please refer to Figures 1-4 , the utility model provides a technical scheme: a high sealing pneumatic valve, including two ventilation pipes 1, the outer wall of two ventilation pipes 1 between one side installs pneumatic actuator 2, the top of pneumatic actuator 2 is fixedly installed first protective frame 3, the inner wall top of first protective frame 3 is movably inserted connecting rod 4, and the outer surface wall of connecting rod 4 is movably inserted in the inside of pneumatic actuator 2, the bottom of connecting rod 4 is fixedly installed ball valve 5, the outer surface wall of connecting rod 4 is fixedly installed gear 6, the top of pneumatic actuator 2 is fixedly installed forward and reverse motor 7, the outer wall one side of forward and reverse motor 7 is fixedly installed threaded rod 8, the outer surface wall of threaded rod 8 is threadedly connected gear row 9, and the outer wall one side of gear row 9 is meshed with the outer surface wall of gear 6.

[0024] As Figures 1-3 Indicated, the top of pneumatic actuator 2 is fixedly installed limit block 10, the top of pneumatic actuator 2 is provided with limit groove 12, threaded rod 8 is rotated in the inside of limit block 10, so that gear row 9 can move on threaded rod 8.

[0025] As Figure 3 And Figure 4 Indicated, the inner surface wall of limit groove 12 is movably embedded sliding block 13, and the top of sliding block 13 is fixedly connected with the bottom of gear row 9, by the action of sliding block 13 and limit groove 12, so that gear row 9 can stably move back and forth on threaded rod 8.

[0026] As Figure 1 , Figure 3 and Figure 4 shown, the top of the pneumatic actuator 2 is provided with a positioning groove 14, and the inner wall of the positioning groove 14 is movably provided with a positioning strip 15. Through the cooperation of the positioning groove 14 and the positioning strip 15, the second protective frame 16 can be quickly placed in the corresponding position.

[0027] As Figures 1-3 shown, the top of the positioning strip 15 is fixedly provided with the second protective frame 16, and the top of the first protective frame 3 is fixedly provided with two fixed blocks 17. Through the cooperation of the first protective frame 3 and the second protective frame 16, the structures such as the reversing motor 7, the gear rack 9 and the gear 6 are protected.

[0028] As Figures 1-3 shown, the top of the second protective frame 16 is fixedly provided with two mounting blocks 18, and the top of each of the two mounting blocks 18 is fixedly provided with a square hole 19. The outer wall of each of the two fixed blocks 17 is movably provided in the inside of the square hole 19. Through the cooperation of the two fixed blocks 17 and the square holes 19, the first protective frame 3 and the second protective frame 16 are overlapped and the structures inside are protected.

[0029] As Figure 1 , Figure 2 and Figure 4 Figure 4 shown, the top of each of the two fixed blocks 17 is threadedly connected with a bolt 20, and the outer wall of each of the two bolts 20 is movably sleeved with a lock block 21. When the two bolts 20 are fixed in the two fixed blocks 17, the lock blocks 21 movably sleeved on the two bolts 20 are located between the two fixed blocks 17 and the nuts on the two bolts 20, and the two lock blocks 21 are perpendicular to the two fixed blocks 17. Thus, the installation of the second protective frame 16 can be quickly completed.

[0030] The method for using the device and the working principle are as follows: when the gas enters the vent pipe 1 and the pneumatic actuator 2, the opening and closing of the ball valve 5 is realized by rotating the ball valve 5, at this time, the positive and negative motor 7 is started by the external controller, so that the threaded rod 8 is rotated in the inside of the limiting block 10, because the sliding block 13 installed at the bottom of the gear row 9 is movably embedded in the inside of the limiting groove 12, the gear row 9 is stably moved back and forth on the threaded rod 8, because the top of the connecting rod 4 is rotatably connected to the inner wall top of the first protective frame 3 and movably inserted in the inside of the pneumatic actuator 2, then the gear row 9 is meshingly connected with the gear 6 fixedly sleeved on the connecting rod 4, so that the gear 6 and the connecting rod 4 are rotated by the movement of the gear row 9, and then the ball valve 5 installed at the bottom of the connecting rod 4 is rotated, and the opening and closing of the ball valve 5 is realized, the sealing performance is high, then the second protective frame 16 is quickly placed at the corresponding position by the action of the positioning strip 15 and the positioning groove 14, and the two mounting blocks 18 installed at the top of the second protective frame 16 are sleeved on the two fixed blocks 17 through the two square holes 19, then the two fixed blocks 17 are threadedly connected in the inside of the two fixed blocks 17 under the action of the two bolts 20, at this time, the lock blocks 21 movably sleeved on the two bolts 20 are located between the two fixed blocks 17 and the nuts on the two bolts 20, and the two lock blocks 21 are perpendicular to the two fixed blocks 17, so that the installation of the second protective frame 16 is quickly completed, the first protective frame 3 and the second protective frame 16 jointly protect the internal structure, the disassembly and assembly of the second protective frame 16 are simple, the efficiency of subsequent disassembly and assembly and maintenance is high, and the use effect of the pneumatic valve with high sealing performance is improved.

[0031] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application still falls within the protection scope of the technical scheme of the present application.

Claims

1. A high-sealing pneumatic valve, comprising two vent pipes (1), characterized in that: A pneumatic actuator (2) is installed between the outer walls of the two vent pipes (1). A first protective frame (3) is fixedly installed on the top of the pneumatic actuator (2). A connecting rod (4) is movably inserted into the top of the inner wall of the first protective frame (3), and the outer wall of the connecting rod (4) is movably inserted into the pneumatic actuator (2). A ball valve (5) is fixedly installed at the bottom of the connecting rod (4). A gear (6) is fixedly installed on the outer wall of the connecting rod (4). A forward and reverse motor (7) is fixedly installed on the top of the pneumatic actuator (2). A threaded rod (8) is fixedly installed on one side of the outer wall of the forward and reverse motor (7). A toothed rack (9) is threadedly connected to the outer wall of the threaded rod (8), and one side of the outer wall of the toothed rack (9) meshes with the outer wall of the gear (6).

2. The high-sealing pneumatic valve according to claim 1, characterized in that: A limiting block (10) is fixedly installed on the top of the pneumatic actuator (2), and a limiting groove (12) is opened on the top of the pneumatic actuator (2).

3. A high-sealing pneumatic valve according to claim 2, characterized in that: The inner surface of the limiting groove (12) is movably fitted with a sliding block (13), and the top of the sliding block (13) is fixedly connected to the bottom of the toothed row (9).

4. A high-sealing pneumatic valve according to claim 3, characterized in that: The pneumatic actuator (2) has a positioning groove (14) on its top, and a positioning strip (15) is movably inserted into the inner wall of the positioning groove (14).

5. A high-sealing pneumatic valve according to claim 4, characterized in that: The second protective frame (16) is fixedly installed on the top of the positioning strip (15), and two fixing blocks (17) are fixedly installed on the top of the first protective frame (3).

6. A high-sealing pneumatic valve according to claim 5, characterized in that: Two mounting blocks (18) are fixedly installed on the top of the second protective frame (16). The top of each of the two mounting blocks (18) is fixedly installed with a square hole (19), and the outer walls of the two fixing blocks (17) are movably inserted into the inside of the two square holes (19).

7. A high-sealing pneumatic valve according to claim 6, characterized in that: The top of each of the two fixing blocks (17) is threaded with a bolt (20), and the outer wall of each of the two bolts (20) is movably fitted with a locking block (21).

Images