Quick judgment device for air source pressure of pneumatic valve
By designing the piston and detection rod structure inside the air source pipe, and combining it with the limit plate and displacement sensor, the requirement for real-time detection of air source pressure in pneumatic valves was solved, thus achieving stable operation of pneumatic valves and reducing air source leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YUEZHI SEMICONDUCTOR TECHNOLOGY CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-28
AI Technical Summary
The normal operation of existing pneumatic valves is highly dependent on stable air source pressure, requiring real-time monitoring of the air source pressure, but there is a lack of quick judgment devices.
A device comprising an air source pipe, a fixing mechanism, a piston, a detection rod, and a displacement sensor was designed. The device utilizes changes in air pressure to move the piston and detection rod within the air source pipe. Combined with a limiting plate and a sealing structure, it enables real-time monitoring of the air source pressure and indication of abnormal conditions.
It enables real-time monitoring of the air source pressure of pneumatic valves, timely detection and handling of potential problems, ensuring smooth production processes, and improving the practicality and sealing performance of the device.
Smart Images

Figure CN224174625U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of air source pressure monitoring technology, and in particular to a device for quickly determining the air source pressure of pneumatic valves. Background Technology
[0002] Pneumatic valves are automated control devices that use compressed air as a power source and employ pneumatic actuators to open and close valves. In the field of industrial control, pneumatic valves play a crucial role, especially in applications requiring precise control of the flow rate, pressure, and direction of fluids (such as gases and liquids).
[0003] The normal operation of existing pneumatic valves is highly dependent on a stable air source pressure. Therefore, it is necessary to detect the air source pressure in real time. Developing a device that can quickly determine the air source pressure of pneumatic valves is particularly important. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides a device for quickly determining the air source pressure of pneumatic valves. This device overcomes the deficiencies of existing technologies and aims to solve the problem that the normal operation of existing pneumatic valves is highly dependent on stable air source pressure. Therefore, it is necessary to detect the air source pressure in real time. Developing a device that can quickly determine the air source pressure of pneumatic valves is therefore of great importance.
[0005] To achieve the above objectives, this application provides the following technical solution: a device for quickly determining the air source pressure of a pneumatic valve, comprising an air source pipe, a fixing mechanism at the top of the air source pipe, a movable shaft slidably connected inside the fixing mechanism, the fixing mechanism comprising a lower fixing pipe and an upper fixing pipe, the lower fixing pipe being located below the upper fixing pipe, and a piston being disposed inside the lower fixing pipe; a piston being disposed at the bottom of the movable shaft, the piston being located inside the air source pipe; a top plate and a fixing plate being disposed outside the movable shaft, the top plate being located above the fixing plate; a spring being disposed at the top of the top plate, the top of the spring being fixedly connected to the inner wall of the upper fixing pipe, the spring being sleeved on the outside of the movable shaft; a detection rod being disposed at the top of the movable shaft, the other end of the detection rod extending through the top of the upper fixing pipe to the outside.
[0006] By adopting the above technical solution and setting up an air source pipe, during use, the high-pressure airflow output from the air supply pipeline will directly enter the interior of the pneumatic valve through the air source pipe. When the internal air pressure of the air source pipe is high, the piston will rise, thereby raising the position of the entire moving shaft. At this time, the detection rod will appear outside the fixed mechanism, making it convenient for operators to observe. When the air source pressure is low, the piston will penetrate into the air source pipe, and the detection rod will retract directly into the fixed mechanism under the action of the spring. The setting of the limiting plate can limit the fixed plate and limit the position of the moving shaft, fixing the position of the piston between the air source pipe and the fixed mechanism, preventing the detection rod from directly detaching due to excessive internal pressure. At the same time, it can also improve the sealing performance and reduce air source leakage. By using this device, operators can monitor the air source pressure of the pneumatic valve in real time, promptly detect and deal with potential problems, thereby ensuring the smooth operation of the production process and improving practicality.
[0007] As a preferred embodiment of this application, a detection sleeve is provided at the top of the fixing mechanism, the detection sleeve is sleeved on the outside of the detection rod, and a displacement sensor is provided at the top of the detection sleeve.
[0008] By adopting the above technical solution and setting up a detection sleeve, the movement of the detection rod can be more accurately observed using a displacement sensor during use. This allows staff to better understand the real-time changes in the internal air pressure of the air source pipe, thus improving its practicality.
[0009] As a preferred technical solution of this application, the top of the upper fixing tube is provided with an installation groove, and an indicator light is installed inside the installation groove. The indicator light is electrically connected to the displacement sensor.
[0010] By adopting the above technical solution and setting up the installation slot, the indicator lights can make it easier for staff to observe abnormal air pressure conditions on site during use.
[0011] As a preferred technical solution of this application, the detection rod is provided with a scale on the outside, and the detection rod is coated with a red coating.
[0012] By adopting the above technical solution and setting a scale, staff can quickly obtain real-time readings of air pressure changes and more accurately detect air pressure changes.
[0013] As a preferred technical solution of this application, a rubber ring is provided on the outside of the piston, and the rubber ring is made of rubber.
[0014] By adopting the above technical solution and setting a rubber ring, the sealing performance between the air source pipe and the fixing mechanism can be further improved during use, preventing leakage.
[0015] As a preferred technical solution of this application, fixing blocks are provided around the bottom of the lower fixing pipe, and fixing bolts are threadedly connected to the top of the four sets of fixing blocks. The four sets of fixing bolts pass through the fixing blocks and are threadedly connected to the gas source pipe.
[0016] By adopting the above technical solution and setting a fixing block, the fixing effect between the gas source pipe and the fixing mechanism can be further enhanced during use, preventing the pipe from falling off.
[0017] As a preferred technical solution of this application, the fixing mechanism and the moving shaft are both made of aluminum alloy, and the spring is made of high carbon steel.
[0018] By adopting the above technical solution and setting the fixing mechanism and moving shaft to be made of aluminum alloy, the structural strength and service life can be further improved. The high carbon steel spring can significantly improve the stability after long-term use and enhance practicality.
[0019] The beneficial effects of this application are:
[0020] 1. By setting up an air source pipe, during use, the high-pressure airflow output from the air supply pipeline directly enters the pneumatic valve through the air source pipe. When the internal air pressure of the air source pipe is high, the piston rises, thereby raising the position of the entire moving shaft. At this time, the detection rod appears outside the fixed mechanism, making it convenient for operators to observe. When the air source pressure is low, the piston will penetrate deeper into the air source pipe, and the detection rod will retract directly into the fixed mechanism under the action of the spring. The set limit plate can limit the fixed plate and limit the position of the moving shaft, fixing the position of the piston between the air source pipe and the fixed mechanism. This prevents the detection rod from detaching due to excessive internal pressure and also improves sealing and reduces air source leakage. By using this device, operators can monitor the air source pressure of the pneumatic valve in real time, promptly detect and deal with potential problems, thereby ensuring the smooth operation of the production process and improving practicality.
[0021] 2. By setting up a detection sleeve, the movement of the detection rod can be more accurately observed using a displacement sensor during use, allowing staff to better understand the real-time changes in the internal air pressure of the air source pipe and improving its practicality. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this application;
[0023] Figure 2 This is a schematic diagram of the fixed mechanism structure of this application;
[0024] Figure 3 This is a schematic diagram of the moving shaft structure of this application;
[0025] Figure 4 This is a schematic diagram of the bottom structure of the upper fixed tube in this application.
[0026] In the diagram: 1. Air source pipe; 2. Fixing mechanism; 201. Lower fixing pipe; 202. Upper fixing pipe; 203. Limiting plate; 204. Mounting groove; 205. Indicator light; 3. Moving shaft; 301. Piston; 302. Detection rod; 303. Fixing plate; 304. Top plate; 305. Scale; 306. Rubber ring; 4. Detection sleeve; 401. Displacement sensor; 5. Spring; 6. Fixing block; 601. Fixing bolt. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0028] Reference Figures 1-4 A device for quickly determining the air source pressure of a pneumatic valve includes an air source pipe 1. A fixing mechanism 2 is provided at the top of the air source pipe 1. A movable shaft 3 is slidably connected inside the fixing mechanism 2. The fixing mechanism 2 includes a lower fixing pipe 201 and an upper fixing pipe 202. The lower fixing pipe 201 is located below the upper fixing pipe 202. A 23 is provided inside the lower fixing pipe 201. A piston 301 is provided at the bottom of the movable shaft 3. The piston 301 is located inside the air source pipe 1. A top plate 304 and a fixing plate 303 are provided outside the movable shaft 3. The top plate 304 is located above the fixing plate 303. A spring 5 is provided at the top of the top plate 304. The top of the spring 5 is fixedly connected to the inner wall of the upper fixing pipe 202. The spring 5 is sleeved on the outside of the movable shaft 3. A detection rod 302 is provided at the top of the movable shaft 3. The other end of the detection rod 302 extends to the outside through the top of the upper fixing pipe 202. The top of the upper fixed tube 202 is provided with a mounting groove 204, and an indicator light 205 is installed inside the mounting groove 204. The indicator light 205 is electrically connected to the displacement sensor 401.
[0029] By setting up an air source pipe 1, during use, the high-pressure airflow output from the air supply pipeline will directly enter the pneumatic valve through the air source pipe 1. The piston 301 will rise when the internal air pressure of the air source pipe 1 is high, thereby raising the position of the entire moving shaft 3. At this time, the detection rod 302 will appear outside the fixed mechanism 2, making it convenient for operators to observe. When the air source pressure is low, the piston 301 will penetrate into the air source pipe 1. At this time, the detection rod 302 will retract directly into the fixed mechanism 2 under the action of the spring 5. The limiting plate 203 can limit the fixed plate 303 and limit the position of the moving shaft 3, fixing the position of the piston 301 between the air source pipe 1 and the fixed mechanism 2. This prevents the detection rod 302 from directly detaching due to excessive internal pressure, and also improves the sealing performance and reduces air source leakage. By using this device, operators can monitor the air source pressure of the pneumatic valve in real time, promptly detect and deal with potential problems, thereby ensuring the smooth operation of the production process and improving practicality. By setting up the installation slot 204, the indicator light 205 makes it easier for staff to observe abnormal air pressure conditions on site during use.
[0030] Reference Figure 1 A detection sleeve 4 is installed on the top of the fixing mechanism 2, and the detection sleeve 4 is fitted onto the outside of the detection rod 302. A displacement sensor 401 is installed on the top of the detection sleeve 4. The detection rod 302 has a scale 305 on its outside and is coated with a red coating. Fixing blocks 6 are installed around the bottom of the lower fixing pipe 201. The top of each of the four sets of fixing blocks 6 is threaded with a fixing bolt 601, and the four sets of fixing bolts 601 pass through the fixing blocks 6 and are threaded to the air source pipe 1. By setting the detection sleeve 4, the displacement sensor 401 can be used to more accurately observe the movement of the detection rod 302 during use, so that the staff can further understand the real-time changes in the internal air pressure of the air source pipe 1, thus improving practicality. By setting the scale 305, the staff can quickly obtain real-time readings of air pressure changes and more accurately detect air pressure changes. By setting the fixing blocks 6, the fixing effect between the air source pipe 1 and the fixing mechanism 2 can be further enhanced during use, preventing the pipe from falling off.
[0031] Reference Figure 1The piston 301 is externally fitted with a rubber ring 306, which is made of rubber. By setting the rubber ring 306, the sealing between the air source pipe 1 and the fixing mechanism 2 can be further improved during use, preventing leakage. The fixing mechanism 2 and the moving shaft 3 are both made of aluminum alloy, and the spring 5 is made of high carbon steel. By setting the fixing mechanism 2 and the moving shaft 3 to be made of aluminum alloy, the structural strength can be further improved and the service life can be extended. The high carbon steel spring 5 can significantly improve the stability after long-term use and improve practicality.
[0032] Working principle: By setting up an air source pipe 1, during use, the high-pressure airflow output from the air supply pipeline will directly enter the pneumatic valve through the air source pipe 1. When the air pressure inside the air source pipe 1 is high, the piston 301 will rise, thereby raising the position of the entire moving shaft 3. At this time, the detection rod 302 will appear outside the fixed mechanism 2 for easy observation by the operator. When the air pressure is low, the piston 301 will penetrate into the air source pipe 1. At this time, the detection rod 302 will retract directly into the fixed mechanism 2 under the action of the spring 5. The limiting plate 203 can limit the position of the fixed plate 303 and simultaneously control the position of the moving shaft 3. Limiting the position of piston 301 between air source pipe 1 and fixing mechanism 2 prevents the detection rod 302 from detaching due to excessive internal pressure. This also improves sealing and reduces air leakage. By using this device, operators can monitor the air source pressure of the pneumatic valve in real time, promptly identify and address potential problems, and ensure the smooth operation of the production process, thus enhancing practicality. By setting the detection sleeve 4, the displacement sensor 401 can more accurately observe the movement of the detection rod 302 during use, allowing staff to further understand the real-time changes in the internal air pressure of air source pipe 1, further improving practicality.
[0033] Among them, by setting the installation slot 204, the indicator light 205 makes it easier for staff to observe abnormal air pressure on site during use. By setting the scale 305, staff can quickly obtain real-time readings of air pressure changes and more accurately detect changes in air pressure.
[0034] Meanwhile, by setting the rubber ring 306, the sealing between the air source pipe 1 and the fixing mechanism 2 can be further improved during use, preventing leakage.
[0035] In addition, by setting the fixing block 6, the fixing effect between the air source pipe 1 and the fixing mechanism 2 can be further enhanced during use, preventing it from falling off; by setting the fixing mechanism 2 and the moving shaft 3 to be made of aluminum alloy, the structural strength can be further improved and the service life can be extended; the high carbon steel spring 5 can greatly improve the stability after long-term use and improve practicality.
[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A device for quickly determining the air source pressure of a pneumatic valve, comprising an air source pipe (1), characterized in that, A fixing mechanism (2) is provided at the top of the gas source pipe (1). A moving shaft (3) is slidably connected inside the fixing mechanism (2). The fixing mechanism (2) includes a lower fixing pipe (201) and an upper fixing pipe (202). The lower fixing pipe (201) is located below the upper fixing pipe (202). A (23) is provided inside the lower fixing pipe (201). A piston (301) is provided at the bottom of the moving shaft (3). The piston (301) is located inside the gas source pipe (1). The moving shaft (3) The exterior is provided with a top plate (304) and a fixing plate (303). The top plate (304) is located above the fixing plate (303). A spring (5) is provided on the top of the top plate (304). The top of the spring (5) is fixedly connected to the inner wall of the upper fixing tube (202). The spring (5) is sleeved on the outside of the moving shaft (3). A detection rod (302) is provided on the top of the moving shaft (3). The other end of the detection rod (302) extends through the top of the upper fixing tube (202) to the outside.
2. The device for quickly determining the air source pressure of a pneumatic valve according to claim 1, characterized in that, The top of the fixing mechanism (2) is provided with a detection sleeve (4), which is sleeved on the outside of the detection rod (302). The top of the detection sleeve (4) is provided with a displacement sensor (401).
3. The device for quickly determining the air source pressure of a pneumatic valve according to claim 2, characterized in that, The top of the upper fixed tube (202) is provided with an installation groove (204), and an indicator light (205) is installed inside the installation groove (204). The indicator light (205) is electrically connected to the displacement sensor (401).
4. The device for quickly determining the air source pressure of a pneumatic valve according to claim 1, characterized in that, The detection rod (302) has a scale (305) on its exterior and is coated with a red coating.
5. A device for quickly determining the air source pressure of a pneumatic valve according to claim 1, characterized in that, The piston (301) is provided with a rubber ring (306) on its outside, and the rubber ring (306) is made of rubber.
6. The device for quickly determining the air source pressure of a pneumatic valve according to claim 1, characterized in that, The bottom of the lower fixed pipe (201) is provided with fixed blocks (6) around the bottom. The top of the four sets of fixed blocks (6) are threaded with fixed bolts (601). The four sets of fixed bolts (601) pass through the fixed blocks (6) and are threadedly connected to the gas source pipe (1).
7. The device for quickly determining the air source pressure of a pneumatic valve according to claim 1, characterized in that, The fixing mechanism (2) and the moving shaft (3) are both made of aluminum alloy, and the spring (5) is made of high carbon steel.