Gas director overhauling and testing device

Abstract

The utility model relates to an overhauling and testing device for a gas director. The fuel gas director overhauling and testing device is small in size, easy to operate, high in disassembly and assembly efficiency, high in detection precision, safe and reliable and comprises a supporting frame and a testing assembly, and a rotating mechanism used for fixing a director is rotationally installed on the supporting frame; the testing assembly comprises a fixing frame and a pressure collector used for collecting the pressure of the director, the pressure collector is fixedly arranged on the fixing frame, and the fixing frame is detachably arranged on the supporting frame.

Description

Technical Field

[0001] This utility model relates to a gas pressure regulator testing device, and more particularly to a gas controller maintenance and testing device. Background Technology

[0002] Gas pressure regulators are critical equipment in urban gas supply systems. They automatically adjust the gas flow by changing the opening of the regulating valve, maintaining a specified pressure at the gas outlet and ensuring stable gas pressure during delivery. Urban gas companies need to conduct planned major and minor repairs on pressure regulators regularly. Some regulators also need to be sent to a maintenance center for disassembly and overhaul, and can only be reinstalled after passing testing. During disassembly and overhaul, since there is no on-site testing equipment to inspect the regulators, workers need to disassemble them by repeatedly turning them upside down with both hands. This process is prone to bumps and knocks that can damage the regulator. Furthermore, the regulator has many parts, and prolonged single-handed handling can cause parts to fall and be lost. Improper force during disassembly can also cause minor accidents such as hand injuries. Therefore, it cannot be guaranteed that the regulator will function properly after reinstallation. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a gas dispatcher maintenance and testing device that is small in size, simple to operate, highly efficient in disassembly and assembly, highly accurate in detection, and safe and reliable.

[0004] This utility model discloses a gas dispatcher maintenance and testing device, including a support frame and a testing component. The support frame is rotatably mounted with a rotating mechanism for fixing the dispatcher. The testing component includes a fixed frame and a pressure collector for collecting the pressure of the dispatcher. The pressure collector is fixedly mounted on the fixed frame, and the fixed frame is detachably mounted on the support frame.

[0005] This utility model discloses a gas controller maintenance and testing device, wherein the support frame includes two support plates and multiple connecting rods. The two support plates are both arranged vertically and are relatively parallel, and the two ends of the multiple connecting rods are respectively connected to the two support plates.

[0006] This utility model discloses a gas dispatcher maintenance and testing device, wherein the rotating mechanism includes a fixed plate, two rotating shafts and two sleeves. The fixed plate is provided with mounting holes for installing the dispatcher. The two sleeves are respectively fixedly installed on the top of two support plates. One end of the two rotating shafts is respectively fixedly installed on opposite sides of the fixed plate, and the other end of the two rotating shafts is rotatably connected to the two sleeves respectively.

[0007] This utility model relates to a gas controller maintenance and testing device, wherein a fixed rod is provided on the fixed frame, and the pressure collector is fixedly mounted on the fixed rod.

[0008] This utility model discloses a gas dispatcher maintenance and testing device, wherein the pressure collector includes a first pressure collector and a second pressure collector. The first pressure collector is provided with a first signal pipe with a first regulating valve installed, a second signal pipe with a second regulating valve installed, a first pressure gauge, and a first pressure relief pipe with a first rotary switch installed. The second pressure collector is provided with a third signal pipe, a second pressure gauge, and a second pressure relief pipe with a second rotary switch installed.

[0009] This utility model discloses a gas controller maintenance and testing device, wherein a fourth signal pipe, an inlet pipe with a third regulating valve, and a third pressure gauge are connected to the first signal pipe.

[0010] This utility model discloses a gas controller maintenance and testing device, wherein a drawer is provided between the two support plates.

[0011] This utility model relates to a gas controller maintenance and testing device, wherein a limit pin is provided on the sleeve.

[0012] This utility model relates to a gas controller maintenance and testing device, wherein a threaded rod is provided on the fixing plate.

[0013] The difference between this utility model and the prior art is that the gas controller maintenance and testing device of this utility model fixes the controller by fixing plate on support frame, and then the controller is disassembled and repaired by rotating it. After the repair is completed, the fixing frame is installed on support frame, and then the controller is tested by pressure collector. After the test is qualified, the controller can be reinstalled on gas pressure regulator.

[0014] This utility model provides a gas control device and application method for maintenance and testing, which has at least the following beneficial effects:

[0015] (1) The design of the rotating mechanism on the support frame not only frees the workers' hands and improves the quality and efficiency of maintenance, but also effectively avoids safety accidents such as the falling and damage of the controller or injury caused by human error.

[0016] (2) During the test of the controller, the signal tubes on the first and second pressure acquisition units are connected to the corresponding ports of the controller to simulate the working process of the controller on the gas pressure regulator. By changing the gas pressure at each port of the controller, the sealing performance, sensitivity, steady-state balance function and overpressure protection function of the controller are tested. If the controller is qualified, it is quickly reinstalled into the gas pressure regulator. If it is unqualified, it is returned to the factory for repair or scrapped, which greatly shortens the inspection and testing time and improves the testing efficiency.

[0017] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a gas dispatcher maintenance and testing device according to the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the support frame in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the test component in this utility model;

[0021] Figure 4 This is a test flowchart of a gas control device for maintenance and testing according to the present invention.

[0022] Figure label:

[0023] 01-Support frame; 11-Support plate; 12-Connecting rod; 13-Rotating mechanism; 131-Fixing plate; 1311-Mounting hole; 1312-Threaded rod; 133-Shaft; 134-Sleeve; 135-Limit pin; 136-Drawer; 02-Test assembly; 21-Fixing frame; 211-Fixing rod; 212-Mounting slot; 22-Pressure acquisition device; 23-First pressure acquisition device; 231-First signal tube; 2311-First regulating valve; 2 32-Fourth signal tube; 233-Inlet pipe; 2331-Third regulating valve; 234-Third pressure gauge; 235-Second signal tube; 2351-Second regulating valve; 236-First pressure gauge; 237-First pressure relief pipe; 2371-First rotary switch; 24-Second pressure collector; 241-Third signal tube; 242-Second pressure gauge; 243-Second pressure relief pipe; 2431-Second rotary switch; 03-Control device; 31-Forced exhaust port. Detailed Implementation

[0024] like Figure 1 , 2 As shown in Figure 3, the present invention provides a gas controller maintenance and testing device, which includes a support frame 01 and a testing component 02. A rotating mechanism 13 for fixing the controller 03 is rotatably mounted on the support frame 01. The testing component 02 includes a fixing frame 21 and a pressure collector 22 for collecting the pressure of the controller 03. The pressure collector 22 is fixedly mounted on the fixing frame 21, and the fixing frame 21 is detachably mounted on the support frame 01.

[0025] The gas controller 03 inspection and testing device of this utility model is mainly used for the inspection and testing of the gas controller 03 on the gas regulator in the gas system.

[0026] The support frame 01 is used to create an operating space and support the controller 03 at a certain height, providing convenience for workers to inspect and test.

[0027] The rotating mechanism 13 is rotatably mounted on the support frame 01 and is used for fixing and flipping the controller 03. When assembling or disassembling the controller 03, the worker first fixes the controller 03 to the rotating mechanism 13, and then rotates the rotating mechanism 13 to disassemble or assemble various parts of the controller 03. This design not only frees the worker's hands and improves the quality and efficiency of maintenance, but also effectively avoids safety accidents such as the controller 03 falling and being damaged or injured due to human error.

[0028] Test component 02 is mainly used for pressure and sensitivity testing of the controller 03 after maintenance, such as whether there is a leak, whether the action is flexible, and whether the pressure of the inlet and outlet meets the standard. If the controller 03 is qualified, it will be quickly reinstalled into the gas pressure regulator. If it is not qualified, it will be returned to the factory for repair or scrapped, which greatly shortens the maintenance and testing time and improves the testing efficiency.

[0029] The mounting bracket 21 is rectangular in shape and features a telescopic structure, which reduces its space footprint and facilitates connection with the support bracket 01. The pressure acquisition device 22 is securely fixed to the mounting bracket 21, allowing for easy connection and testing with the controller 03 and ensuring the stability of the testing process.

[0030] The support frame 01 and the test component 02 are detachable. When the controller 03 is disassembled and repaired, the test component 02 can be removed. After the repair is completed, the test component 02 can be installed on the support frame 01 to test the controller 03. The specific working process will be described in detail later.

[0031] like Figure 2 As shown, the support frame 01 includes two support plates 11 and multiple connecting rods 12. The two support plates 11 are both arranged vertically and are relatively parallel. The two ends of the multiple connecting rods 12 are respectively connected to the two support plates 11.

[0032] Both support plates 11 are perpendicular to the ground (i.e., vertically set) and parallel to each other. The left end of the connecting rod 12 is connected to the left support plate 11 and the right end is connected to the right support plate 11, and is perpendicular to both support plates 11. Multiple connecting rods 12 can be set as needed. Here, we take the four rods in the figure as an example. Two connecting rods 12 are connected to the front and rear sides of the support plate 11, thus forming a three-dimensional structure of the support frame 01, ensuring the stability and firmness of the support frame 01.

[0033] like Figure 2As shown, the rotating mechanism 13 includes a fixed plate 131, two rotating shafts 133, and two sleeves 134. The fixed plate 131 is provided with mounting holes 1311 for mounting the controller 03. The two sleeves 134 are respectively fixedly mounted on the top ends of two support plates 11. One end of each of the two rotating shafts 133 is fixedly mounted on opposite sides of the fixed plate 131, and the other end of each rotating shaft 133 is rotatably connected to the two sleeves 134. A threaded rod 1312 is provided on the fixed plate 131. A limit pin 135 is provided on each sleeve 134.

[0034] The fixing plate 131 is preferably rectangular to facilitate connection with other components. It has a through mounting hole 1311 in the center and a threaded hole matching the threaded rod 1312 on the front side wall. The threaded hole extends through the mounting hole 1311 and the threaded rod 1312 is threadedly connected to the threaded hole of the fixing plate 131.

[0035] When inspecting the controller 03, first, place the controller 03 into the mounting hole 1311, then rotate the threaded rod 1312 until it is firmly against the controller 03, thus securing the controller 03 to the mounting plate 131. Multiple threaded rods 1312 can be provided as needed to ensure the controller 03 is securely fixed.

[0036] Two rotating shafts 133 are located near one end of the fixed plate 131 and are fixed to the center of the left and right sides of the fixed plate 131 by bolts or welding, respectively, and are parallel to the fixed plate 131 (i.e., located on the same plane) to ensure that the fixed plate 131 is subjected to uniform force and facilitates worker operation.

[0037] Two sleeves 134 are welded to the tops of two support plates 11 and arranged opposite each other; two rotating shafts 133, located away from the fixed plate 131, are inserted into the two sleeves 134 respectively, achieving a rotatable connection. This configuration allows the fixed plate 131 to rotate 360 ​​degrees, enabling efficient disassembly and reassembly of the controller 03. In addition to the sleeves 134, bearing seats or other devices with the same or equivalent effect can also be used for rotatable connection with the rotating shafts 133.

[0038] The left sleeve 134 is provided with a hole for inserting a limiting pin 135. Multiple holes are evenly arranged circumferentially along the shaft 133 at positions corresponding to the holes in the sleeve 134. During maintenance of the controller 03, when the fixing plate 131 rotates to a certain angle, the limiting pin 135 is inserted into the corresponding holes in the sleeve 134 and the shaft 133, fixing the fixing plate 131 in a certain position, thus limiting its movement and improving maintenance efficiency. To further ensure the limiting effect on the fixing plate 131, a limiting pin 135 can also be installed on the right sleeve 134.

[0039] During maintenance, first place the base of the controller 03 into the mounting hole 1311, then rotate the threaded rod 1312 to firmly fix the controller 03 onto the fixing plate 131. Then rotate the fixing plate 131 and fix it to the required position through the limit pin 135 for disassembly and maintenance. After maintenance, assemble the controller 03, then install the test component 02 onto the support frame 01, and finally perform functional testing on the controller 03 through the test component 02.

[0040] This utility model discloses a gas controller maintenance and testing device, wherein a fixed rod 211 is provided on the fixed frame 21, and a pressure collector 22 is fixedly installed on the fixed rod 211.

[0041] To ensure that the pressure acquisition device 22 and the command device 03, which has a certain height, are in the optimal testing position, it is necessary to solve the problems of fixing and height of the pressure acquisition device 22. A vertically set fixing rod 211 is welded on the fixing frame 21, and the pressure acquisition device 22 is welded to the top of the fixing rod 211. This can ensure that the testing process is carried out in an orderly manner.

[0042] To ensure that the fixing frame 21 is securely installed on the support frame 01, mounting grooves 212 are provided at the corresponding sleeves 134 on the left and right crossbeams of the fixing frame 21. The two sleeves 134 are respectively welded to the top of the two support plates 11, forming an upward protrusion. The protrusion is adapted to the mounting grooves 212 on the left and right crossbeams of the fixing frame 21, so that the fixing frame 21 is stably connected to the support frame 01. In addition, the mounting grooves 212 can limit the fixing frame 21, which can effectively prevent the fixing frame 21 from falling off during testing.

[0043] This utility model discloses a gas dispatcher maintenance and testing device, wherein the pressure collector 22 includes a first pressure collector 23 and a second pressure collector 24. The first pressure collector 23 is provided with a first signal pipe 231 with a first regulating valve 2311 installed, a second signal pipe 235 with a second regulating valve 2351 installed, a first pressure gauge 236, and a first pressure relief pipe 237 with a first rotary switch 2371 installed. The second pressure collector 24 is provided with a third signal pipe 241, a second pressure gauge 242, and a second pressure relief pipe 243 with a second rotary switch 2431 installed. The first signal pipe 231 is connected to a fourth signal pipe 232, an inlet pipe 233 with a third regulating valve 2331 installed, and a third pressure gauge 234.

[0044] Command device 03 typically has multiple ports (such as PRS81, PS79, etc.), as detailed below:

[0045] (1) Upstream pressure tap: It is connected to the upstream of the gas pressure regulator and is used to transmit the upstream pressure signal of the gas pressure regulator to the controller 03, so as to provide the controller 03 with the pressure signal required for operation.

[0046] (2) Downstream pressure tap: It is connected to the downstream of the gas pressure regulator and is used to transmit the downstream pressure signal of the gas pressure regulator to the controller 03. The controller 03 adjusts the valve opening in the controller 03 according to the received pressure signal.

[0047] (3) Loading port: Located on the right side of the main diaphragm of the pressure regulator, the pilot 03 adjusts the opening of the gas supply valve (the valve connecting the upstream pressure tap and the loading port) in the pilot 03 according to the pressure signal downstream of the gas pressure regulator. According to the pressure demand, the high pressure gas from the loading port of the pilot 03 to the right side of the main diaphragm of the pressure regulator is increased or decreased. Under the push of the load pressure, the main diaphragm of the pressure regulator drives the valve cylinder to move together in the direction that increases or decreases the opening of the pressure regulator valve port, thereby maintaining the stability of the downstream pressure.

[0048] (4) Forced exhaust port 31: When the downstream pressure of the controller 03 is too high, it is used to relieve pressure at the loading port. When the downstream pressure of the gas regulator is too high, the controller 03 opens the internal exhaust valve (the valve connecting the loading port and the forced exhaust port 31) to relieve pressure through the forced exhaust port 31 and maintain stable pressure.

[0049] like Figure 3 As shown, the first pressure acquisition unit 23 has four ports, as follows:

[0050] (1) Second signal pipe 235: connected to the downstream pressure tap of the controller 03, simulating the controller 03 taking pressure from the downstream of the gas regulator. The second regulating valve 2351 is used to regulate the gas flow of the second signal pipe 235 (i.e. the pressure at the downstream pressure tap of the controller 03), simulating various self-regulating conditions when the pressure at the downstream pressure tap of the controller 03 increases or decreases.

[0051] (2) First signal pipe 231: Its right end is connected to one end of the air inlet pipe 233, and is used to pressurize the second signal pipe 235 to simulate various self-adjusting conditions when the pressure at the downstream pressure tap of the controller 03 increases. A first regulating valve 2311 is installed near the first pressure collector 23 on the first signal pipe 231. The valve controls the opening and closing of the first signal pipe 231 and the flow rate of gas delivered to the second signal pipe 235 (i.e., controls the pressurization level of the second signal pipe 235).

[0052] The other end of the air inlet pipe 233 is connected to an external gas source, or it can be directly connected to a gas pipeline of the corresponding pressure level to simulate the gas supply system. The external gas source can be bottled nitrogen or compressed air to ensure a continuous and stable test pressure during the test. The third regulating valve 2331 is used to control the pressure flowing into the upstream pressure tap of the controller 03, simulating various self-adjusting situations when the pressure at the upstream pressure tap of the controller 03 changes.

[0053] The right end of the fourth signal tube 232 is connected to the first signal tube 231, and the left end is connected to the upstream pressure tap of the controller 03, providing a stable gas source for the controller 03 and simulating the process of the controller 03 working on the gas pressure regulator.

[0054] (3) First pressure relief pipe 237: for relieving pressure on the first pressure collector 23; when working normally, the first rotary switch 2371 is closed, and when pressure relief is needed, the first rotary switch 2371 is opened to simulate the various self-adjustment situations when the pressure at the downstream pressure tap of the controller 03 decreases.

[0055] (4) First pressure gauge 236: used to detect the gas pressure of the first pressure collector 23, that is, the pressure of the downstream pressure tap of the controller 03. By observing the change of the pressure value of the gauge, it can be determined whether the controller 03 after maintenance is qualified.

[0056] The second pressure acquisition unit 24 has three ports, as follows:

[0057] (1) Third signal tube 241: connected to the loading port of the controller 03, simulating the controller 03 adjusting the pressure of the gas pressure regulator as the upstream and downstream pressures change.

[0058] (2) Second pressure gauge 242: used to detect the gas pressure of the second pressure collector 24, that is, the pressure of the loading port of the controller 03. By observing the change of the pressure value of the gauge, it can be determined whether the controller 03 after maintenance is qualified.

[0059] (3) Second pressure relief pipe 243: used to relieve pressure for the second pressure collector 24; the second rotary switch 2431 is closed during normal operation, and the second rotary switch 2431 is opened when pressure relief is needed. The simulation controller 03 adjusts the loading port pressure according to the pressure of the downstream pressure tap and the upstream pressure tap, and then judges whether the controller 03 is qualified after maintenance.

[0060] All signal tubes are made of high-pressure metal flexible tubes with strong pressure resistance and high flexibility, which is convenient for connection and installation, as well as for disassembly and transportation.

[0061] like Figure 4 As shown, the intake pressure of the fourth signal tube 232 is P1, which is the pressure of the third pressure gauge 234; the pressure of the second signal tube 235 is P2, which is the pressure of the first pressure gauge 236; the pressure of the third signal tube 241 is P3, which is the pressure of the second pressure gauge 242; and the pressure of the forced exhaust port 31 of the controller 03 is P4. Hereafter, the pressures will be consistently referred to as P1, P2, P3, and P4.

[0062] When testing the controller 03 after maintenance, the following steps should be taken:

[0063] (1) First, rotate the fixing plate 131 to a horizontal position to ensure that the controller 03 is placed stably. Then, install the fixing frame 21 onto the support frame 01 to ensure a stable connection. Next, connect the second signal pipe 235, the third signal pipe 241 and the fourth signal pipe 232 to the downstream pressure tap, the loading port and the upstream pressure tap of the controller 03 respectively. Finally, connect the air inlet pipe 233 to the external air source.

[0064] (2) First, turn the adjusting screw of the pilot valve 03 to the free state. At this time, the downstream pressure tap, the forced exhaust port 31 and the loading port of the pilot valve 03 are all closed, that is, P2=P3=P4=0. Then, open the third regulating valve 2331 on the intake pipe 233 and gradually increase the pressure of the upstream pressure tap of the pilot valve 03 to the set pressure value (that is, the pressure value of P1). The gas flows into the pilot valve 03 from the upstream pressure tap. Then, use soap (dishwashing liquid) water to test for leaks at the upstream pressure tap of the pilot valve 03 (that is, spray soap water at the connection between the upstream pressure tap and the fourth signal pipe 232) to ensure that there is no air leakage at the intake and avoid affecting the accuracy of the test. At this time, observe the pressure values ​​of P2 and P3. If P2=P3=0, or there is no significant increase and the pressure is stable, then the sealing and valve closing performance of the pilot valve 03 is good. Otherwise, it is unqualified.

[0065] (3) Open the second regulating valve 2351 on the second signal tube 235 and slowly tighten the regulating screw of the pilot 03. At this time, the thrust (spring force) above the diaphragm of the pilot 03 is greater than the thrust below. The diaphragm of the pilot 03 moves downward, and the relevant valve discs and other components inside it move, thereby opening the loading port and the downstream pressure tapping port. That is, the pressure values ​​of P2 and P3 should rise slowly at the same time, and the pressure change should match the tightness of the regulating bolt. The tighter the bolt is, the greater the output P3 pressure, until it reaches the qualified range. This is used to judge whether the working status of the valves and other components inside the pilot 03 is good. Otherwise, the pilot 03 is unqualified. At the same time, use soapy water to test the connection between the loading port and the downstream pressure tapping port of the pilot 03 to ensure that there is no air leakage, so as not to affect the test results.

[0066] (4) Simulate the situation where the pressure of P2 increases and exhaust is discharged from the forced exhaust port 31 of the controller 03, and test the overpressure protection function of the controller 03. Open and adjust the first regulating valve 2311 on the first signal pipe 231 to pressurize the first pressure acquisition device through the first signal pipe 231. The pressure value of P2 will increase accordingly. Under normal conditions, the diaphragm of the controller 03 is subjected to the thrust of P2 below and the spring force (corresponding to the target value of P2) above, and the two are in balance. As P2 increases, the thrust below the diaphragm exceeds the spring force, the balance is broken, and the diaphragm moves upward. The upward movement of the diaphragm will drive the exhaust valve port (the valve connecting the loading port and the forced exhaust port 31) inside the controller 03 to open. At this time, the gas in the loading port is discharged from the forced exhaust port 31 through the exhaust valve port, and P3 should decrease accordingly. Otherwise, the controller 03 is unqualified (e.g., the exhaust valve is stuck).

[0067] (5) Simulate the situation where the pressure of P2 decreases and the pressure of P3 increases to test the pressure reduction and regulation function of the controller 03. Close or adjust the first regulating valve 2311 on the first signal pipe 231, and at the same time adjust the second regulating valve 2351 on the second signal pipe 235 and / or open the first rotary switch 2371 on the first pressure relief pipe 237 to reduce the pressure value of P2. When P2 decreases, the thrust below the diaphragm of the controller 03 is less than the spring force, the diaphragm moves down, and the gas supply valve port is opened (P1 supplies gas to the loading port). P3 should increase accordingly. When P2 is stable, test the steady-state balance function of the controller 03. At this time, the controller 03 should reach dynamic balance, and P3 should neither increase nor decrease, that is, the pressure value of P3 should remain stable. If the controller 03 works well, the test is qualified and it can be reinstalled on the gas pressure regulator; otherwise, it is unqualified.

[0068] It needs to be specifically explained that the dynamic equilibrium achieved by the controller 03 means that the forces on both sides of the diaphragm inside the controller 03 are in a balanced state. The lower part of the diaphragm is subjected to the pressure of P2, while the upper part is subjected to the force of the spring in the adjusting screw, etc. These two forces cancel each other out, and the position of the diaphragm remains unchanged. This will also keep the opening of the gas supply valve (the valve connecting the upstream pressure tap and the loading port) and the exhaust valve (the valve connecting the loading port and the forced exhaust port 31) of the controller 03 relatively stable. With a fixed opening degree of the gas supply valve, the amount of gas flowing into the loading port (P3) from the upstream pressure tap per unit time is fixed; at the same time, with a fixed opening degree of the exhaust valve, the amount of gas discharged from the loading port through the exhaust valve and the forced exhaust port 31 per unit time is also fixed. In order to maintain the stability of P3 and prevent it from rising or falling, the amount of gas supplied by the gas supply valve will be exactly equal to the amount of gas discharged by the exhaust valve, forming a dynamic equilibrium. Therefore, P3 neither rises nor falls (stable).

[0069] like Figure 2 As shown, a drawer 136 is provided between the two support plates 11.

[0070] As a precision and expensive instrument, every part of the gas control device 03 is crucial. If parts are lost or damaged during disassembly and maintenance, it will not only cause economic losses, but in severe cases, it may even lead to the scrapping of the control device 03.

[0071] To avoid such problems, a pull-out drawer 136 specifically designed for storing parts is incorporated into the support frame 01. Specifically, the support plate 11 has through holes for pulling out or pushing back the drawer 136. A slide rail is bolted or welded to the inner wall of the connecting rod 12, and the drawer 136 is equipped with pulleys or sliders that match the slide rail. When disassembling the controller 03, the drawer 136 is pulled out to store the parts; after maintenance, it is pushed back in. Depending on requirements, one drawer 136 can be installed on each of the left and right support plates 11, further enhancing the convenience and flexibility of parts storage.

[0072] It should be noted that the terms "center", "upper", "lower", "front", "rear", "left", "right", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0073] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0074] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A gas control device for maintenance and testing, characterized in that: The device includes a support frame and a testing assembly. The support frame is rotatably mounted with a rotating mechanism for fixing the controller. The testing assembly includes a mounting frame and a pressure acquisition device for collecting the pressure of the controller. The pressure acquisition device is fixedly mounted on the mounting frame, and the mounting frame is detachably mounted on the support frame.

2. The gas control device for maintenance and testing according to claim 1, characterized in that: The support frame includes two support plates and multiple connecting rods. The two support plates are both arranged vertically and are relatively parallel. The two ends of the multiple connecting rods are respectively connected to the two support plates.

3. The gas control device for maintenance and testing according to claim 2, characterized in that: The rotating mechanism includes a fixed plate, two rotating shafts and two sleeves. The fixed plate is provided with mounting holes for installing the controller. The two sleeves are respectively fixedly installed on the top of two support plates. One end of each of the two rotating shafts is fixedly installed on opposite sides of the fixed plate, and the other end of each rotating shaft is rotatably connected to the two sleeves.

4. The gas control device for maintenance and testing according to claim 3, characterized in that: The mounting frame is equipped with a fixing rod, and the pressure collector is fixedly mounted on the fixing rod.

5. A gas control device for maintenance and testing according to claim 4, characterized in that: The pressure acquisition device includes a first pressure acquisition device and a second pressure acquisition device. The first pressure acquisition device is provided with a first signal pipe with a first regulating valve installed, a second signal pipe with a second regulating valve installed, a first pressure gauge, and a first pressure relief pipe with a first rotary switch installed. The second pressure acquisition device is provided with a third signal pipe, a second pressure gauge, and a second pressure relief pipe with a second rotary switch installed.

6. The gas dispatcher maintenance and testing device according to claim 5, characterized in that: The first signal tube is connected to a fourth signal tube, an air inlet tube with a third regulating valve, and a third pressure gauge.

7. A gas dispatcher maintenance and testing device according to claim 6, characterized in that: A drawer is provided between the two support plates.

8. The gas dispatcher maintenance and testing device according to claim 7, characterized in that: The sleeve is provided with a limit pin.

9. A gas dispatcher maintenance and testing device according to claim 8, characterized in that: The fixing plate is provided with a threaded rod.

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