Pressure transmitter for pipe network based on GIS positioning

Abstract

The invention relates to the technical field of pressure transmitters, in particular to a pressure transmitter for a pipe network based on GIS (geographic information system) positioning, which comprises a pipeline mounting plate, a ball valve is fixedly connected onto the pipeline mounting plate in a penetrating manner, the pressure transmitter is in threaded connection with the upper part of the ball valve, and a transmission opening and closing mechanism is arranged on one side of the pressure transmitter. A movable cover is arranged above the transmission opening and closing mechanism, the top end of the movable cover is rotationally connected with a cleaning frame, a blocking cover is rotationally connected to an opening in one side of the cleaning frame, and two push rod sets are rotationally connected to the lower portion of the cleaning frame in a center alignment structure. When a pressure transmitter on a pipe network in an underground well needs to be overhauled correspondingly, the pressure transmitter in the movable cover can be driven to move out of the underground well, the pressure transmitter can be moved out under the condition that workers do not need to enter the underground well, workers are prevented from being exposed to the dangerous environment of the underground well, and the safety of the workers is improved. And the occurrence rate of safety accidents is reduced.

Description

Technical Field

[0001] This invention relates to the field of pressure transmitter technology, and more particularly to a pressure transmitter for pipeline networks based on GIS positioning. Background Technology

[0002] Pipeline pressure transmitters are devices used to measure and monitor fluid pressure within pipeline systems. They are commonly used in industries such as oil, natural gas, water treatment, and chemicals to ensure pipeline systems operate within normal pressure ranges and provide real-time data for timely detection of anomalies and prevention of system failures. With the increasing automation of modern industry, intelligent functions of pressure transmitters are gradually being introduced, especially through integration with intelligent sensor technology, making pressure transmitters more versatile, precise, and adaptive.

[0003] The GIS (Geographic Information System)-based pressure transmitter for pipeline networks is a system that combines GIS technology with intelligent sensors. It can monitor the pressure status within the pipeline system in real time, ensuring the safe and efficient operation of the network. This system not only provides real-time pressure data but also utilizes intelligent sensor technology to enhance the accuracy, reliability, and real-time performance of the data. Through built-in microprocessors and intelligent algorithms, the intelligent sensors can process, diagnose, and issue early warnings for measurement data in real time, achieving automated data acquisition and transmission.

[0004] The prior art publication CN118032203A provides a pressure transmitter that, by setting up a buffer mechanism, when a hydraulic shock occurs in the pipeline, the pipeline drives the pipe joint to shake violently. At this time, the first and second universal balls can roll adaptively, and at the same time, the sliding disc slides in the first set of pipes, so that the damping fluid flows along the through hole, which can play a good damping and buffering role, thereby providing a good buffering and protection effect for the main body and ensuring the performance and service life of the pressure transmitter body.

[0005] Due to the variety of pipeline types, when existing technology is applied to pipelines within underground wells, maintenance of pressure transmitters requires manual entry into the wells. Because the environment inside underground wells is complex, often containing potential hazards such as gas leaks and harmful substances, manual entry can easily lead to safety accidents, posing a threat to the lives of workers. Furthermore, maintenance in underground wells requires manual operation, and the working environment is typically narrow and damp, affecting maintenance efficiency.

[0006] In summary, the existing technology lacks a maintenance technique for automatically removing pressure transmitters used in underground pipelines. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of the prior art by proposing a GIS-based pressure transmitter for pipeline networks.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a pressure transmitter for pipeline networks based on GIS positioning, comprising a pipeline mounting plate, a ball valve fixedly connected through the pipeline mounting plate, a pressure transmitter threadedly connected above the ball valve, a transmission opening and closing mechanism on one side of the pressure transmitter, a movable cover above the transmission opening and closing mechanism, a cleaning frame rotatably connected to the top of the movable cover, a baffle rotatably connected to the opening on one side of the cleaning frame, and two push rod assemblies rotatably connected to the bottom of the cleaning frame in a centrally aligned structure.

[0009] Preferably, a valve core is rotatably connected inside the ball valve, and the valve stem of the valve core extends through the inner wall of the ball valve to the outside and is fixedly connected to an opening and closing wheel.

[0010] Preferably, a fixing frame is fixedly connected to the bottom end of the pressure transmitter, the fixing frame is fixedly connected to the movable cover, a pipe joint is slidably fitted on the inner wall of the bottom end of the pressure transmitter, the other end of the pipe joint is threadedly connected to the output end of the ball valve, and a transmission wheel A is fixedly connected to the outer wall of the middle part of the pipe joint.

[0011] Preferably, the transmission opening and closing mechanism includes a motor A, which is fixedly connected to the pipe mounting plate. A threaded rod is fixedly connected to the output end of the motor A, and a movable frame is threadedly connected to the threaded rod. A guide rod is slidably fitted through one end of the movable frame, and the guide rod is fixedly connected to the pipe mounting plate. An opening and closing rack is fixedly connected to the other end of the movable frame, and the opening and closing rack meshes with the opening and closing wheel for transmission.

[0012] Preferably, a rectangular block is fixedly connected to the top of the threaded rod, a gear shaft is slidably fitted onto the outer wall of the rectangular block, a tension spring is fixedly connected to the bottom of the rectangular block, the other end of the tension spring is fixedly connected to the inner wall of the gear shaft, the bottom end of the gear shaft is in movable contact with the movable frame, and the gear shaft is slidably meshed with the transmission wheel A for transmission. The tension spring enables the gear shaft to automatically reset.

[0013] Preferably, a corrugated pipe is fixedly connected to the bottom end of the movable cover, and a fixing ring is fixedly connected to the bottom end of the corrugated pipe. The fixing ring is fixedly connected to the pipe mounting plate. An inspection port is provided on the movable cover, and the inner wall of the inspection port is slidably fitted with the outer wall of the cover. The corrugated pipe provides protection for the internal structure.

[0014] Preferably, the cleaning rack is L-shaped and slides in contact with the outer wall of the movable cover and the baffle. A pulley A is fixedly connected to one end of the cleaning rack inside the movable cover. A pulley B is driven by belt friction. A rotating shaft is fixedly connected to pulley B and rotates through the inner wall of the movable cover. A transmission wheel B is fixedly connected to the bottom end of the rotating shaft and slides in contact with a gear shaft.

[0015] Preferably, a universal joint is fixedly connected to one end of the cover, and the universal joint is rotatably connected to the inner wall of the movable cover. A gear is fixedly connected to the other end of the universal joint, and an adjusting rack is meshed and driven on one side of the gear. A sliding frame is fixedly connected to one end of the adjusting rack, and the sliding frame is slidably engaged with the inner wall of the movable cover. A transmission groove is formed on the sliding frame, and the transmission groove consists of two parts: an arc-shaped structure and a straight structure.

[0016] Preferably, the bottom end of the push rod assembly is rotatably connected to the pipe mounting plate, and a motor B is fixedly connected to the bottom end of the push rod assembly. The motor B is fixedly connected to the inner wall of the pipe mounting plate. One end of the push rod assembly connected to the movable cover is fixedly connected to an L-shaped rod, and the other end of the L-shaped rod is slidably engaged with the inner wall of the transmission groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting up a push rod assembly, when it is necessary to maintain the pressure transmitter on the pipeline network used in the underground well, the pressure transmitter in the moving cover can be moved out of the underground well. The pressure transmitter can be moved out without the need for personnel to enter the underground well, avoiding the exposure of personnel to the dangerous environment of the underground well and reducing the incidence of safety accidents. At the same time, when the pressure transmitter is moved out, the cover on the moving cover can be automatically opened, which can greatly improve the safety, efficiency and maintainability of the equipment during the maintenance of the pressure transmitter.

[0019] 2. By setting up a transmission opening and closing mechanism, before the pressure transmitter applied in the pipeline network in the underground well is removed for maintenance, the ball valve can be automatically closed and the pipe joint connecting the pressure transmitter and the ball valve can be automatically unscrewed. This allows for more efficient, safe and convenient operation during the removal of the pressure transmitter from the underground well for maintenance. This not only improves the safety and efficiency of maintenance and reduces labor costs, but also enhances the reliability and long-term stability of the equipment by reducing human error and avoiding leakage.

[0020] 3. By setting up a cleaning rack, the cleaning rack can rotate while the transmission opening and closing mechanism drives the ball valve to open and close, cleaning the mud and other substances attached to the surface of the moving cover and baffle. This ensures that the pressure transmitter can be moved out for maintenance, avoiding malfunctions caused by surface impurities and unnecessary maintenance delays, making the maintenance work smoother and more efficient. Attached Figure Description

[0021] Figure 1 This is a partial cross-sectional view of the overall structure of a pressure transmitter for pipeline networks based on GIS positioning according to the present invention.

[0022] Figure 2 This is a schematic diagram illustrating the overall structure of a GIS-based positioning pressure transmitter for pipeline networks, as described in this invention, when applied to a pipeline.

[0023] Figure 3 This is a partial cross-sectional schematic diagram of the structure of a ball valve and other components of a pressure transmitter for pipeline networks based on GIS positioning according to the present invention.

[0024] Figure 4 This is a partial cross-sectional schematic diagram of the pressure transmitter structure of a GIS-based pressure transmitter for pipeline networks according to the present invention.

[0025] Figure 5 This is a partial cross-sectional schematic diagram of the transmission opening and closing mechanism structure of a pressure transmitter for pipeline networks based on GIS positioning according to the present invention.

[0026] Figure 6 This is a partial cross-sectional schematic diagram of the moving cover structure of a pressure transmitter for pipeline networks based on GIS positioning according to the present invention.

[0027] Figure 7 This is a schematic diagram of a cleaning rack structure for a pipeline pressure transmitter based on GIS positioning according to the present invention.

[0028] Figure 8 This is a schematic diagram of the cover structure of a pressure transmitter for pipeline networks based on GIS positioning according to the present invention;

[0029] Figure 9 This is a partial cross-sectional schematic diagram of the push rod assembly and other structures of a pressure transmitter for pipeline networks based on GIS positioning according to the present invention.

[0030] The diagram shows: 1. Pipe mounting plate; 2. Ball valve; 3. Pressure transmitter; 4. Transmission opening and closing mechanism; 5. Moving cover; 6. Cleaning rack; 7. Baffle; 8. Push rod assembly; 201. Valve core; 202. Opening and closing wheel; 301. Pipe fitting; 302. Transmission wheel A; 303. Fixed frame; 401. Motor A; 402. Threaded rod; 403. Moving frame; 404. Opening and closing rack; 405. Rectangular block; 4 06. Gear shaft; 407. Tension spring; 408. Guide rod; 501. Bellows; 502. Retaining ring; 503. Inspection port; 601. Pulley A; 602. Belt; 603. Pulley B; 604. Rotating shaft; 605. Transmission wheel B; 701. Universal joint; 702. Gear; 703. Adjusting rack; 704. Sliding frame; 705. Transmission groove; 801. Motor B; 802. L-shaped rod. Detailed Implementation

[0031] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0032] like Figures 1-9 The pressure transmitter for pipeline networks based on GIS positioning shown includes a pipeline mounting plate 1. A ball valve 2 is fixedly connected through the pipeline mounting plate 1. A pressure transmitter 3 is threadedly connected above the ball valve 2. A transmission opening and closing mechanism 4 is provided on one side of the pressure transmitter 3. A movable cover 5 is provided above the transmission opening and closing mechanism 4. A cleaning frame 6 is rotatably connected to the top of the movable cover 5. A cover 7 is rotatably connected to the opening on one side of the cleaning frame 6. Two push rod groups 8 are rotatably connected to the bottom of the cleaning frame 6 in a center-aligned structure.

[0033] like Figure 3 As shown, a valve core 201 is rotatably connected inside the ball valve 2. The valve stem of the valve core 201 extends through the inner wall of the ball valve 2 to the outside and is fixedly connected to an opening and closing wheel 202. The motor A401 drives the connected threaded rod 402 to rotate. At this time, the threaded rod 402 drives the moving frame 403 to move upwards, so that the moving frame 403 can drive the opening and closing wheel 202 to rotate via the opening and closing rack 404. This causes the opening and closing wheel 202 to drive the valve core 201 to rotate, thus automatically closing the ball valve 2.

[0034] like Figure 4 As shown, a fixed bracket 303 is fixedly connected to the bottom of the pressure transmitter 3. The fixed bracket 303 is fixedly connected to the movable cover 5. A pipe joint 301 is slidably fitted on the inner wall of the bottom of the pressure transmitter 3. The other end of the pipe joint 301 is threadedly connected to the output end of the ball valve 2. A transmission wheel A302 is fixedly connected to the outer wall of the middle part of the pipe joint 301. The gear shaft 406 drives the meshing transmission wheel A302 to rotate, so that the transmission wheel A302 can drive the pipe joint 301 to rotate.

[0035] like Figure 5 As shown, the transmission opening and closing mechanism 4 includes a motor A401, which is fixedly connected to the pipe mounting plate 1. A threaded rod 402 is fixedly connected to the output end of the motor A401. A movable frame 403 is threadedly connected to the threaded rod 402. A guide rod 408 is slidably fitted through one end of the movable frame 403. The guide rod 408 is fixedly connected to the pipe mounting plate 1. An opening and closing rack 404 is fixedly connected to the other end of the movable frame 403. The opening and closing rack 404 meshes with the opening and closing wheel 202 for transmission.

[0036] A rectangular block 405 is fixedly connected to the top of the threaded rod 402. A gear shaft 406 is slidably fitted on the outer wall of the rectangular block 405. A tension spring 407 is fixedly connected to the bottom of the rectangular block 405. The other end of the tension spring 407 is fixedly connected to the inner wall of the gear shaft 406. The bottom of the gear shaft 406 is in movable contact with the movable frame 403. The gear shaft 406 is slidably meshed with the transmission wheel A302 for transmission.

[0037] like Figure 6 As shown, a corrugated pipe 501 is fixedly connected to the bottom of the movable cover 5, and a fixing ring 502 is fixedly connected to the bottom of the corrugated pipe 501. The fixing ring 502 is fixedly connected to the pipe mounting plate 1. An inspection port 503 is provided on the movable cover 5, and the inner wall of the inspection port 503 is slidably fitted with the outer wall of the cover 7.

[0038] like Figure 7 As shown, the cleaning rack 6 has an L-shaped structure. The cleaning rack 6 is in slidable contact with the outer wall of the movable cover 5 and the baffle 7. A pulley A601 is fixedly connected to one end of the cleaning rack 6 inside the movable cover 5. A pulley B603 is connected to pulley A601 via friction transmission through a belt 602. A rotating shaft 604 is fixedly connected to pulley B603, and the rotating shaft 604 is rotatably connected through the inner wall of the movable cover 5. A transmission wheel B605 is fixedly connected to the bottom end of the rotating shaft 604, and the transmission wheel B605 is slidably engaged with a gear shaft 406. The gear shaft 406 drives the engaged transmission wheel B605 to rotate, which in turn drives the pulley B603 connected to the rotating shaft 604 to rotate. This, in turn, drives the cleaning rack 6 connected to pulley A601 to rotate via the belt 602.

[0039] like Figure 8As shown, a universal joint 701 is fixedly connected to one end of the cover 7. The universal joint 701 is rotatably connected to the inner wall of the movable cover 5. A gear 702 is fixedly connected to the other end of the universal joint 701. An adjusting rack 703 is meshed and driven on one side of the gear 702. A sliding frame 704 is fixedly connected to one end of the adjusting rack 703. The sliding frame 704 is slidably engaged with the inner wall of the movable cover 5. A transmission groove 705 is provided on the sliding frame 704. The transmission groove 705 is composed of two parts: an arc-shaped structure and a straight structure.

[0040] like Figure 9 As shown, the bottom end of the push rod assembly 8 is rotatably connected to the pipe mounting plate 1, and a motor B801 is fixedly connected to the bottom end of the push rod assembly 8. The motor B801 is fixedly connected to the inner wall of the pipe mounting plate 1. One end of the push rod assembly 8 connected to the movable cover 5 is fixedly connected to an L-shaped rod 802, and the other end of the L-shaped rod 802 is slidably engaged with the inner wall of the transmission groove 705. The L-shaped rod 802 connected to the push rod assembly 8 moves from the arc-shaped structure of the transmission groove 705 to the straight structure. When the L-shaped rod 802 rotates to the straight structure of the transmission groove 705, it drives the sliding frame 704 to move, so that the sliding frame 704 can drive the connected adjusting rack 703 to move, so that the adjusting rack 703 can drive the gear 702 to rotate, so that the gear 702 can drive the cover 7 connected to the universal joint 701 to open automatically.

[0041] By setting up the push rod assembly 8, when it is necessary to repair the pressure transmitter 3 on the pipeline network used in the underground well, the pressure transmitter 3 inside the movable cover 5 can be moved out of the underground well. The removal operation of the pressure transmitter 3 can be completed without the need for personnel to enter the underground well, avoiding the exposure of personnel to the dangerous environment of the underground well and reducing the incidence of safety accidents. At the same time, when the pressure transmitter 3 is moved out, the cover 7 on the movable cover 5 can be automatically opened, which greatly improves the safety, efficiency and maintainability of the equipment during the repair of the pressure transmitter 3.

[0042] Working principle: By integrating the pressure transmitter 3 with the GIS system, users can intuitively view the pressure data of each monitoring point on the map, and can locate and analyze the pressure distribution of the pipeline network in real time, facilitating timely responses from decision-makers. The GIS system can display the location of the pressure transmitter 3, the layout of the pipeline network, pressure change trends, and related environmental information, thereby providing strong support for pipeline maintenance, troubleshooting, and optimization.

[0043] When it is necessary to repair the pressure transmitter 3 on the pipeline in the underground well, the motor A401 drives the connected threaded rod 402 to rotate. At this time, the threaded rod 402 will drive the moving frame 403 to move upward, so that the moving frame 403 can drive the opening and closing wheel 202 to rotate through the opening and closing rack 404, so that the opening and closing wheel 202 drives the valve core 201 to rotate, so that the ball valve 2 will automatically close.

[0044] As the movable frame 403 continues to move upward, it will be able to contact and lift the gear shaft 406. At this time, when the threaded rod 402 rotates, it will drive the rectangular block 405 to rotate, so that the rectangular block 405 can drive the gear shaft 406 to rotate accordingly.

[0045] At this time, the gear shaft 406 will drive the meshing transmission wheel A302 to rotate, so that the transmission wheel A302 can drive the pipe joint 301 to rotate, so that the pipe joint 301 can be unscrewed from the ball valve 2.

[0046] At the same time, the gear shaft 406 will drive the meshing transmission wheel B605 to rotate, so that the transmission wheel B605 can drive the pulley B603 connected to the rotating shaft 604 to rotate, so that the pulley B603 drives the cleaning frame 6 connected to the pulley A601 to rotate through the belt 602, so that the cleaning frame 6 cleans the outer wall of the movable cover 5 and the cover 7.

[0047] Then, the push rod assembly 8 is driven to rotate by the motor B801, so that the push rod assembly 8 can drive the movable cover 5 to move upward and move out of the underground wellhead;

[0048] At this time, the L-shaped rod 802 connected to the push rod assembly 8 will move from the arc-shaped structure of the transmission groove 705 to the straight structure. When the L-shaped rod 802 rotates to the straight structure of the transmission groove 705, it will drive the sliding frame 704 to move, so that the sliding frame 704 can drive the connected adjusting rack 703 to move, so that the adjusting rack 703 can drive the gear 702 to rotate, so that the gear 702 can drive the cover 7 connected to the universal joint 701 to open automatically, and the pressure transmitter 3 can be inspected and processed through the inspection port 503.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A pressure transmitter for pipeline networks based on GIS positioning, comprising a pipeline mounting plate (1), characterized in that: A ball valve (2) is fixedly connected through the pipe mounting plate (1). A pressure transmitter (3) is threadedly connected above the ball valve (2). A transmission opening and closing mechanism (4) is provided on one side of the pressure transmitter (3). A movable cover (5) is provided above the transmission opening and closing mechanism (4). A cleaning rack (6) is rotatably connected to the top of the movable cover (5). A cover (7) is rotatably connected to the opening on one side of the cleaning rack (6). Two push rod groups (8) are rotatably connected to the bottom of the cleaning rack (6) in a center-aligned structure.

2. A pressure transmitter for pipeline networks based on GIS positioning according to claim 1, characterized in that: The ball valve (2) is rotatably connected to a valve core (201), and the valve stem of the valve core (201) extends through the inner wall of the ball valve (2) to the outside and is fixedly connected to an opening and closing wheel (202).

3. A pressure transmitter for pipeline networks based on GIS positioning according to claim 2, characterized in that: The pressure transmitter (3) is fixedly connected to a fixed frame (303) at its bottom end. The fixed frame (303) is fixedly connected to the movable cover (5). The inner wall of the bottom end of the pressure transmitter (3) is slidably fitted with a pipe joint (301). The other end of the pipe joint (301) is threadedly connected to the output end of the ball valve (2). The outer wall of the middle part of the pipe joint (301) is fixedly connected to a transmission wheel A (302).

4. A pressure transmitter for pipeline networks based on GIS positioning according to claim 3, characterized in that: The transmission opening and closing mechanism (4) includes a motor A (401), which is fixedly connected to the pipe mounting plate (1). A threaded rod (402) is fixedly connected to the output end of the motor A (401). A movable frame (403) is threadedly connected to the threaded rod (402). A guide rod (408) is slidably connected to one end of the movable frame (403). The guide rod (408) is fixedly connected to the pipe mounting plate (1). An opening and closing rack (404) is fixedly connected to the other end of the movable frame (403). The opening and closing rack (404) is meshed with the opening and closing wheel (202) for transmission.

5. A pressure transmitter for pipeline networks based on GIS positioning according to claim 4, characterized in that: A rectangular block (405) is fixedly connected to the top of the threaded rod (402). A gear shaft (406) is slidably fitted on the outer wall of the rectangular block (405). A tension spring (407) is fixedly connected to the bottom of the rectangular block (405). The other end of the tension spring (407) is fixedly connected to the inner wall of the gear shaft (406). The bottom of the gear shaft (406) is in movable contact with the movable frame (403). The gear shaft (406) is slidably meshed with the transmission wheel A (302) for transmission.

6. A pressure transmitter for pipeline networks based on GIS positioning according to claim 1, characterized in that: The bottom end of the movable cover (5) is fixedly connected to a corrugated pipe (501), and the bottom end of the corrugated pipe (501) is fixedly connected to a fixing ring (502). The fixing ring (502) is fixedly connected to the pipe mounting plate (1). The movable cover (5) is provided with an inspection port (503), and the inner wall of the inspection port (503) is slidably fitted with the outer wall of the cover (7).

7. A pressure transmitter for pipeline networks based on GIS positioning according to claim 5, characterized in that: The cleaning rack (6) is arranged in an L-shape. The cleaning rack (6) is slidably contacted with the outer wall of the movable cover (5) and the baffle (7). One end of the cleaning rack (6) located inside the movable cover (5) is fixedly connected to a pulley A (601). The pulley A (601) is connected to a pulley B (603) through friction transmission via a belt (602). A rotating shaft (604) is fixedly connected to the pulley B (603). The rotating shaft (604) is rotatably connected to the inner wall of the movable cover (5). A transmission wheel B (605) is fixedly connected to the bottom end of the rotating shaft (604). The transmission wheel B (605) is slidably meshed with a gear shaft (406) for transmission.

8. A pressure transmitter for pipeline networks based on GIS positioning according to claim 1, characterized in that: One end of the cover (7) is fixedly connected to a universal joint (701), which is rotatably connected to the inner wall of the movable cover (5). The other end of the universal joint (701) is fixedly connected to a gear (702). One side of the gear (702) is meshed with an adjusting rack (703). One end of the adjusting rack (703) is fixedly connected to a sliding frame (704), which is slidably engaged with the inner wall of the movable cover (5). The sliding frame (704) is provided with a transmission groove (705), which is composed of two parts: an arc shape and a straight line structure.

9. A pressure transmitter for pipeline networks based on GIS positioning according to claim 8, characterized in that: The bottom end of the push rod assembly (8) is rotatably connected to the pipe mounting plate (1). The bottom end of the push rod assembly (8) is fixedly connected to a motor B (801). The motor B (801) is fixedly connected to the inner wall of the pipe mounting plate (1). One end of the push rod assembly (8) connected to the movable cover (5) is fixedly connected to an L-shaped rod (802). The other end of the L-shaped rod (802) is slidably engaged with the inner wall of the transmission groove (705).

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