Corrosion-resistant valve pneumatic actuator with long service life
Through the design of the convenient device, the gas delivery pipeline is clamped with the screw and sliding rod system, which solves the problem of leakage caused by loose connection of the pneumatic actuator and ensures the stable operation of the equipment.
Patent Information
- Application Number
- CN202421289944.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-06-06
AI Technical Summary
When the pneumatic actuator is installed, the connection between the air input pipe and the air duct may be loose due to changes in air pressure, resulting in leakage during high-pressure gas input, affecting the normal use of the pneumatic actuator.
Convenient devices are adopted, including slot plates, rectangular blocks, screws, sliding rods, L-shaped blocks, sector-shaped blocks and rubber convex strips. The movement of the sliding rods and L-shaped blocks is controlled by rotating the screws, and the sector-shaped blocks are pressed up and down on the gas conveying pipes. On both sides, clamp the connection between the gas delivery pipe and the airway pipe to avoid loosening.
It effectively avoids loose connection between the gas delivery pipe and the airway pipe, reduces high-pressure gas leakage, and ensures the normal operation of the pneumatic actuator.
Smart Images
Figure CN222351571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic actuators, in particular to a long-life corrosion-resistant valve pneumatic actuator. Background Art
[0002] A valve pneumatic actuator is an actuator that uses air pressure to drive the opening and closing or regulating of a valve. The opening and closing of the valve is controlled by the air pressure control system inside the actuator. It is widely used in the industrial field and has the characteristics of fast response and high reliability. Stainless steel materials are used to manufacture parts in contact with the medium, so that the pneumatic actuator can effectively resist chemical corrosion and remain stable in both acidic and alkaline environments.
[0003] When installing the pneumatic actuator, the shaft end will be connected to the valve stem, and the airway tube will be connected to the air input pipe. During long-term use, the connection between the air input pipe and the airway tube may become loose due to changes in air pressure, causing leakage when high-pressure gas is input, affecting the normal use of the pneumatic actuator. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that when the pneumatic actuator is installed, the shaft rod end is connected to the valve rod, and the airway tube is connected to the air input pipeline. During long-term use, the connection between the air input pipeline and the airway tube may become loose due to changes in air pressure, resulting in leakage when high-pressure gas is input, affecting the normal use of the pneumatic actuator. A long-life corrosion-resistant valve pneumatic actuator is proposed to solve the problem.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a long-life corrosion-resistant valve pneumatic actuator, comprising a shell, cylinders are arranged at both ends of the shell, a shaft is arranged at the bottom end of the shell, two airway tubes are arranged on one side of the shell, and a clamping device is arranged on the side of the outer surface of the shell close to the airway tube with the help of a convenient device, the convenient device comprises a groove plate, and the clamping device comprises two rectangular blocks, one side of the two rectangular blocks is fixedly connected to one side of the groove plate, the inner wall of the rectangular block is rotatably connected with a screw, the outer surface of the screw is provided with threads in opposite directions, the outer surface of the screw is threadedly connected with two sliding rods, one side of the sliding rod slides on one side of the groove plate, one side of the sliding rod is fixedly connected with two L-shaped blocks, and the end of the L-shaped block away from the sliding rod is fixedly connected with a fan-shaped block.
[0006] The effect achieved by the above-mentioned components is: by setting the fan-shaped block, installing the pneumatic actuator to insert the gas delivery pipe into the airway pipe and connect it to the airway pipe, the clamping device can be installed on the side of the outer surface of the shell close to the airway pipe with the help of a convenient device, and rotating the screw can control the two sliding rods to slide on one side of the groove plate, driving the two L-shaped blocks and the fan-shaped blocks at both ends of the sliding rod to move in the same direction, and the two fan-shaped blocks on the same side are respectively pressed against the upper and lower sides of the outer surface of the gas delivery pipe to clamp the gas delivery pipe, and the connection between the gas delivery pipe and the airway pipe is reinforced, so as to avoid the loosening of the connection between the gas delivery pipe and the airway pipe as much as possible, thereby affecting the normal operation of the pneumatic actuator.
[0007] Preferably, a plurality of convex strips are fixedly connected to one side of the sector block, and the convex strips are made of rubber material.
[0008] The effect achieved by the above components is that by providing the convex strips made of rubber material, the side of the sector block provided with the convex strips is pressed tightly against the outer surface of the gas delivery pipe to be more stable and less likely to slide.
[0009] Preferably, one side of the L-shaped block is fixedly connected to an inclined rod, and one end of the inclined rod away from the L-shaped block is fixedly connected to one side of the fan-shaped block.
[0010] The effect achieved by the above components is that the connection between the L-shaped block and the fan-shaped block can be reinforced by arranging the oblique rod, thereby increasing the connection stability between the L-shaped block and the fan-shaped block.
[0011] Preferably, two positioning plates are fixedly connected to one side of the sliding rod, and one side of the two positioning plates slides on two sides of the rectangular block respectively.
[0012] The effect achieved by the above components is: when the screw is rotated to control the movement of the sliding rod, one side of the positioning piece will slide on the outer surface of the rectangular block. The positioning piece can further limit the angle between the sliding rod and the rectangular block and the screw, thereby avoiding the sliding rod from being deflected as much as possible.
[0013] Preferably, the top end of the screw rod is fixedly connected with a cylindrical block, and the outer surface of the cylindrical block is provided with a plurality of protrusions.
[0014] The effect achieved by the above components is that by holding the protrusion on the outer surface of the cylindrical block, it is more convenient to control the rotation of the screw rod to adjust the position of the sliding rod.
[0015] Preferably, two bolts are slidably inserted into the inner wall of the groove plate, and two positioning holes are opened on the outer surface of the shell near the airway tube, and the outer surfaces of the bolts are threadedly connected to the inner walls of the positioning holes.
[0016] The effect achieved by the above components is: the slot plate is attached to the side of the outer surface of the shell close to the airway tube, and then two bolts are inserted through the slot plate and inserted into the positioning hole. The bolts are rotated so that the bolts are inserted into the interior of the positioning hole and threadedly connected with the inner wall of the positioning hole to fix the slot plate and the clamping device on one side of the shell. The bolts are rotated so that the bolts are disengaged from the interior of the positioning hole to disassemble the slot plate and the clamping device.
[0017] Preferably, two positioning rods are fixedly connected to one side of the outer surface of the shell close to the airway tube, and the distance between the two positioning rods is slightly greater than the length of the slot plate.
[0018] The effect achieved by the above components is that when installing the clamping device, the upper and lower ends of the slot plate can be clamped between the two positioning rods, which is convenient for positioning and installing the slot plate.
[0019] Preferably, two elastic ropes are fixedly connected to the outer surface of the slot plate, and one end of the two elastic ropes away from the slot plate is fixedly connected to one end of the bolt.
[0020] The effect achieved by the above components is that the bolts can be always fixed on the outer side of the slot plate by arranging the elastic rope, so as to avoid the bolts from falling and being lost when the clamping device is disassembled and assembled as much as possible.
[0021] Compared with the prior art, the advantages and positive effects of the utility model are:
[0022] In the utility model, a clamping device is provided, and when the pneumatic actuator is installed and the gas delivery pipeline is inserted into the airway pipe and connected to the airway pipe, the positions of the two sliding rods are adjusted by rotating the screw rod, and the two fan-shaped blocks on the same side are respectively pressed against the outer surface of the gas delivery pipeline on the upper and lower sides to clamp the gas delivery pipeline, thereby reinforcing the connection between the gas delivery pipeline and the airway pipe, and avoiding as much as possible the loose connection between the gas delivery pipeline and the airway pipe to cause gas leakage, which affects the normal operation of the pneumatic actuator. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the housing of the utility model;
[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the rectangular block of the utility model;
[0026] Figure 4 It is a three-dimensional structural schematic diagram of the slot plate of the utility model.
[0027] Legend: 1. Shell; 2. Clamping device; 3. Convenient device; 4. Cylinder; 5. Shaft; 6. Airway tube; 21. Rectangular block; 22. Screw; 23. Sliding rod; 24. L-shaped block; 25. Fan-shaped block; 26. Raised strip; 27. Oblique rod; 28. Positioning piece; 29. Cylindrical block; 31. Positioning hole; 32. Slot plate; 33. Bolt; 34. Elastic rope; 35. Positioning rod. DETAILED DESCRIPTION
[0028] Embodiment 1, as Figure 1-3 As shown, a long-life corrosion-resistant valve pneumatic actuator comprises a housing 1, cylinders 4 are arranged at both ends of the housing 1, a shaft 5 is arranged at the bottom end of the housing 1, two airway tubes 6 are arranged on one side of the housing 1, a clamping device 2 is arranged on the side of the outer surface of the housing 1 close to the airway tube 6 by means of a convenient device 3, the convenient device 3 comprises a groove plate 32, the clamping device 2 comprises two rectangular blocks 21, one side of the two rectangular blocks 21 is fixedly connected to one side of the groove plate 32, a screw rod 22 is rotatably connected to the inner wall of the rectangular block 21, the outer surface of the screw rod 22 is provided with threads in opposite directions, the outer surface of the screw rod 22 is threadedly connected to two sliding rods 23, one side of the sliding rod 23 slides on one side of the groove plate 32, one side of the sliding rod 23 is fixedly connected to two L-shaped blocks 24, and the L-shaped block 24 is far A sector block 25 is fixedly connected to one end of the sliding rod 23. By setting the sector block 25, when the pneumatic actuator is installed to insert the gas delivery pipeline into the airway tube 6 and connect it to the airway tube 6, the clamping device 2 can be installed on the side of the outer surface of the shell 1 close to the airway tube 6 with the help of the convenient device 3. Rotating the screw 22 can control the two sliding rods 23 to slide on one side of the groove plate 32, driving the two L-shaped blocks 24 and the sector blocks 25 at both ends of the sliding rod 23 to move in the same direction, and the two sector blocks 25 on the same side are respectively pressed against the outer surface of the gas delivery pipeline on the upper and lower sides to clamp the gas delivery pipeline, thereby reinforcing the connection between the gas delivery pipeline and the airway tube 6, and avoiding as much as possible the loose connection between the gas delivery pipeline and the airway tube 6 to affect the normal operation of the pneumatic actuator.
[0029] Reference Figure 1-3 As shown, in this embodiment: one side of the fan-shaped block 25 is fixedly connected with a plurality of ridges 26, and the ridges 26 are made of rubber material. By providing the ridges 26 made of rubber material, the side of the fan-shaped block 25 provided with the ridges 26 is more stable and less likely to slide when pressed against the outer surface of the gas delivery pipe. One side of the L-shaped block 24 is fixedly connected with an inclined rod 27, and one end of the inclined rod 27 away from the L-shaped block 24 is fixedly connected to one side of the fan-shaped block 25. By providing the inclined rod 27, the connection between the L-shaped block 24 and the fan-shaped block 25 can be reinforced, thereby increasing the connection stability between the L-shaped block 24 and the fan-shaped block 25.
[0030] Reference Figure 1-3As shown, in this embodiment: one side of the sliding rod 23 is fixedly connected to two positioning pieces 28, and one side of the two positioning pieces 28 slides on both sides of the rectangular block 21 respectively. When the screw 22 is rotated to control the movement of the sliding rod 23, one side of the positioning piece 28 will slide on the outer surface of the rectangular block 21. The positioning piece 28 can further limit the angle between the sliding rod 23 and the rectangular block 21 and the screw 22 to avoid the angle of the sliding rod 23 from being deflected as much as possible. The top end of the screw 22 is fixedly connected to a cylindrical block 29, and the outer surface of the cylindrical block 29 is provided with a plurality of protrusions. Holding the protrusions on the outer surface of the cylindrical block 29 can more conveniently control the rotation of the screw 22 to adjust the position of the sliding rod 23.
[0031] Reference Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment: two bolts 33 are slidably inserted into the inner wall of the groove plate 32, and two positioning holes 31 are provided on the outer surface of the shell 1 close to the airway tube 6. The outer surface of the bolt 33 is threadedly connected with the inner wall of the positioning hole 31. The groove plate 32 is attached to the outer surface of the shell 1 close to the airway tube 6, and then the two bolts 33 are passed through the groove plate 32 and inserted into the positioning hole 31. The bolt 33 is rotated so that the bolt 33 is inserted into the interior of the positioning hole 31 and is threadedly connected with the inner wall of the positioning hole 31, so that the groove plate 32 and the clamping device 2 can be fixed to one side of the shell 1. The bolt 33 is rotated so that the bolt 33 is disengaged from the interior of the positioning hole 31, and the groove plate 32 and the clamping device 2 can be disassembled.
[0032] Reference Figure 1 , Figure 2 and Figure 4 As shown, in the present embodiment: two positioning rods 35 are fixedly connected to one side of the outer surface of the shell 1 close to the airway tube 6, and the distance between the two positioning rods 35 is slightly larger than the length of the slot plate 32. When installing the clamping device 2, the upper and lower ends of the slot plate 32 can be clamped between the two positioning rods 35, which is convenient for positioning and installing the slot plate 32. Two elastic ropes 34 are fixedly connected to the outer surface of the slot plate 32, and one end of the two elastic ropes 34 away from the slot plate 32 is fixedly connected to one end of the bolt 33. By setting the elastic rope 34, the bolt 33 can be always fixed to the outside of the slot plate 32, and the bolt 33 can be prevented from falling and being lost when the clamping device 2 is disassembled and assembled.
[0033] Working principle: When installing the pneumatic actuator to connect the gas delivery pipeline to the airway pipe 6, fit the slot plate 32 between the two positioning rods 35 on one side of the shell 1, and then insert the two bolts 33 fixed to the outer surface of the slot plate 32 by the elastic rope 34 through the slot plate 32 and insert them into the positioning hole 31, turn the bolts 33 so that the bolts 33 are inserted into the inside of the positioning hole 31 and are threadedly connected with the inner wall of the positioning hole 31 to fix the slot plate 32 and the clamping device 2 on one side of the shell 1, then insert the gas delivery pipeline into the inside of the airway pipe 6, and then hold the protrusion on the outer surface of the cylindrical block 29 to turn the screw 22 to control the two sliding rods 23 to slide on one side of the slot plate 32, driving the sliding rods 23 to slide on one side of the slot plate 32. The two L-shaped blocks 24 and the fan-shaped blocks 25 at both ends of the moving rod 23 move in the same direction, and the two fan-shaped blocks 25 on the same side are provided with one side of the rubber convex strips 26, respectively, and are pressed against the outer surface of the gas delivery pipeline on both sides to clamp the gas delivery pipeline. When the sliding rod 23 moves, one side of the positioning piece 28 will slide on the outer surface of the rectangular block 21. The positioning piece 28 can further limit the angle between the sliding rod 23 and the rectangular block 21 and the screw rod 22. Finally, the shaft rod 5 is connected to the valve stem. When the pneumatic actuator is in operation, air is pumped into and out of the shell 1 so that the two tooth plates inside the shell 1 drive the shaft rod 5 to rotate to control the opening and closing of the valve.
[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.
Claims
1. A long-life corrosion-resistant valve pneumatic actuator, comprising a housing (1), characterized in that: Cylinders (4) are provided at both ends of the shell (1), a shaft (5) is provided at the bottom end of the shell (1), two airway tubes (6) are provided on one side of the shell (1), and a clamping device (2) is provided on the outer surface of the shell (1) on the side close to the airway tube (6) by means of a convenient device (3), the convenient device (3) comprises a groove plate (32), and the clamping device (2) comprises two rectangular blocks (21), one side of the two rectangular blocks (21) is in contact with one side of the groove plate (32). The inner wall of the rectangular block (21) is rotatably connected with a screw rod (22), the outer surface of the screw rod (22) is provided with threads in opposite directions, the outer surface of the screw rod (22) is threadedly connected with two sliding rods (23), one side of the sliding rod (23) slides on one side of the groove plate (32), one side of the sliding rod (23) is fixedly connected with two L-shaped blocks (24), and one end of the L-shaped block (24) away from the sliding rod (23) is fixedly connected with a fan-shaped block (25).
2. The long-life corrosion-resistant valve pneumatic actuator according to claim 1 is characterized in that: A plurality of convex strips (26) are fixedly connected to one side of the sector block (25), and the convex strips (26) are made of rubber material.
3. The long-life corrosion-resistant valve pneumatic actuator according to claim 2 is characterized in that: One side of the L-shaped block (24) is fixedly connected to an inclined rod (27), and one end of the inclined rod (27) away from the L-shaped block (24) is fixedly connected to one side of the fan-shaped block (25).
4. The long-life corrosion-resistant valve pneumatic actuator according to claim 3 is characterized in that: Two positioning pieces (28) are fixedly connected to one side of the sliding rod (23), and one side of the two positioning pieces (28) slides on two sides of the rectangular block (21) respectively.
5. The long-life corrosion-resistant valve pneumatic actuator according to claim 4 is characterized in that: The top end of the screw rod (22) is fixedly connected to a cylindrical block (29), and the outer surface of the cylindrical block (29) is provided with a plurality of protrusions.
6. The long-life corrosion-resistant valve pneumatic actuator according to claim 1 is characterized in that: Two bolts (33) are slidably inserted into the inner wall of the groove plate (32), and two positioning holes (31) are provided on the outer surface of the shell (1) close to the airway tube (6), and the outer surface of the bolt (33) is threadedly connected to the inner wall of the positioning hole (31).
7. The long-life corrosion-resistant valve pneumatic actuator according to claim 6, characterized in that: Two positioning rods (35) are fixedly connected to one side of the outer surface of the shell (1) close to the airway tube (6), and the distance between the two positioning rods (35) is slightly greater than the length of the slot plate (32).
8. The long-life corrosion-resistant valve pneumatic actuator according to claim 7 is characterized in that: Two elastic ropes (34) are fixedly connected to the outer surface of the slot plate (32), and one end of the two elastic ropes (34) away from the slot plate (32) is fixedly connected to one end of the bolt (33).