A pressure transmitter

Abstract

The utility model discloses a pressure transmitter, specifically related to pressure transmitter related technical field. Through the automatic trigger and locking mechanism of built -in, the adaptation ability and installation efficiency of pressure transmitter to different specification equipment connecting pipe have been improved obviously. Its core lies in the equipment connecting pipe itself when installing will promote trigger rod, and further through the linkage of jacking block and pressure plate, the locking state of telescopic rod is automatically released, and telescopic rod is driven to shrink to the inside actively under the action of spring, and is closely attached to the pipe wall. For the thicker connecting flange, still can carry out secondary pressure through manual down pull locking plate. Once the installation thrust is removed, the whole mechanism can realize self -locking under the action of spring and limiting tooth, and the connecting pipe is firmly clamped. This process realizes the automation from the butt joint to locking, does not need additional tool or complex operation, greatly simplifies the installation process, and ensures the sealing and reliability under various sizes.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure transmitters, and more specifically, to a pressure transmitter. Background Technology

[0002] Pressure transmitters are key devices in industrial automation, acting as precise sensors for measuring pipeline pressure. Their core function is to detect real-time pressure changes in fluid media and accurately convert this abstract physical quantity into a standardized electrical signal. Whether it's the surging thrust of liquid in a pipeline or the accumulated tension of gas in a tank, it continuously captures and faithfully transmits this information. This conversion process transforms pressure values, which were previously difficult to transmit and display directly, into analog or digital signals that can be easily transmitted over long distances. These signals are then reliably transmitted to display instruments, recording devices, or complex control systems in the control room, providing operators with clear real-time data and offering the fundamental basis for decision-making regarding the automatic adjustment and safety interlocking of the entire production process. It silently safeguards the stability and safety of the production system and is an indispensable link in achieving precise measurement and control.

[0003] In existing technologies, the installation methods for pressure transmitters and equipment connecting pipes often have significant limitations. Traditional fixed connection structures lack effective adjustment capabilities and are difficult to adapt to connecting pipes of different diameters or flange thicknesses, resulting in poor versatility and often requiring multiple adapter components, increasing inventory and management costs. A more prominent problem is that common installation methods often only provide a single radial clamping or axial compression. This unidirectional constraint is highly susceptible to loosening under continuous mechanical vibration and pressure impacts in the field, leading to decreased connection sealing and even media leakage. This not only directly affects the accuracy of pressure measurement but also poses a long-term threat to the stability and safety of the production process, thus increasing maintenance frequency and risks.

[0004] Therefore, a pressure transmitter is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pressure transmitter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure transmitter, comprising a pressure transmitter body and a device connecting pipe, wherein a control panel is provided on the surface of the pressure transmitter body; further comprising an adapter connection assembly for adapting to device connecting pipes of different sizes for installation; the adapter connection assembly includes a housing, the bottom of the pressure transmitter body penetrates the housing, and the housing is fixedly connected to the pressure transmitter body, a mounting flange is fixedly connected to the bottom of the pressure transmitter body, a nut mounting groove is provided on the surface of the mounting flange, a mounting piece is inserted into and fixedly connected to the inner side of the housing, a movable cavity is provided on the inner side of the mounting piece, a limit tooth is fixedly connected to the inner side of the movable cavity, and a hole is provided on the side of the mounting piece away from the pressure transmitter body.

[0007] Preferably, a telescopic rod is inserted into the hole, and the diameter of the telescopic rod is smaller than the diameter of the hole.

[0008] Preferably, a side fastening plate is fixedly connected to one end of the telescopic rod located outside the movable cavity, and a tensioning rod is inserted into and slidably connected inside the side fastening plate.

[0009] Preferably, a locking plate is fixedly connected to the bottom end of the tensioning rod, and a spring is sleeved on the outer side of the tensioning rod. One end of the spring is fixedly connected to the top surface of the locking plate, and the other end of the spring is fixedly connected to the inner side of the side fastening plate.

[0010] Preferably, a second spring is sleeved on the outer side of the telescopic rod, one end of the second spring is fixedly connected to the surface of the side fastening plate, and the other end of the second spring is fixedly connected to the surface of the mounting plate.

[0011] Preferably, a pressure plate is hinged to the surface of the movable cavity near the hole, and a torsion spring is fixedly connected between the pressure plate and the inner wall of the movable cavity.

[0012] Preferably, a baffle is fixedly connected to the bottom of one end of the telescopic rod located inside the movable cavity, a trigger rod is slidably connected through the mounting flange, the trigger rod simultaneously passes through the mounting plate and is inserted into the movable cavity, and a lifting block is fixedly connected to one end of the trigger rod located inside the movable cavity.

[0013] The technical effects and advantages of this utility model are as follows: Compared to existing technologies, this pressure transmitter significantly improves its adaptability and installation efficiency for connecting pipes of different specifications through a built-in automatic triggering and locking mechanism. The core of the mechanism lies in the fact that during installation, the connecting pipe itself pushes the trigger rod, which, through the linkage of the lifting block and the pressure plate, automatically releases the locking state of the telescopic rod. The telescopic rod then, under the action of the spring, drives the side fastening plate to actively retract inward, tightly fitting against the pipe wall. For thicker connecting flanges, a secondary tightening can be achieved by manually pulling down the locking plate. Once the installation thrust is removed, the entire mechanism achieves self-locking under the action of the spring and the limiting teeth, firmly clamping the connecting pipe. This process automates the connection from mating to locking, requiring no additional tools or complex operations, greatly simplifying the installation process and ensuring the sealing and reliability of connections of various sizes.

[0014] Compared to existing technologies, this pressure transmitter uses a side-fastening plate to clamp the outer wall of the connecting pipe, forming an initial radial constraint. Subsequently, a pressurizable locking plate further presses against the flange end face of the connecting pipe, providing a strong axial locking force. This combination of radial and axial constraint constitutes a highly stable three-dimensional clamping structure. When the pipeline vibrates or experiences stress, this structure effectively suppresses loosening and leakage at the connection points, significantly enhancing the long-term stability and safety of the entire pressure measurement system and extending the equipment's service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is an enlarged structural diagram of the outer shell of this utility model.

[0017] Figure 3 This is a cross-sectional view of the outer shell of this utility model.

[0018] Figure 4 This is an enlarged cross-sectional view of the outer shell of this utility model.

[0019] Figure 5 This is an enlarged cross-sectional view of the mounting plate and side fastening plate of this utility model.

[0020] The attached figures are labeled as follows: 1. Pressure transmitter body; 2. Adapter connection assembly; 3. Control panel; 4. Equipment connection pipe; 21. Housing; 22. Mounting flange; 23. Nut mounting slot; 24. Mounting plate; 25. Movable cavity; 26. Limiting tooth; 27. Hole; 28. Telescopic rod; 29. ​​Side fastening plate; 210. Tensioning rod; 211. Locking plate; 212. Spring II; 213. Baffle plate; 214. Pressure plate; 215. Spring I; 216. Torsion spring; 217. Trigger rod; 218. Lifting block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1 (as attached) Figures 1 to 5The pressure transmitter shown includes a pressure transmitter body 1 and a device connection pipe 4. A control panel 3 is provided on the surface of the pressure transmitter body 1. It also includes an adapter connection assembly 2 for accommodating device connection pipes 4 of different sizes for installation. The adapter connection assembly 2 includes a housing 21, through which the bottom of the pressure transmitter body 1 passes, and the housing 21 is fixedly connected to the pressure transmitter body 1. A mounting flange 22 is fixedly connected to the bottom of the pressure transmitter body 1. A nut mounting groove 23 is provided on the surface of the mounting flange 22. A mounting plate 24 is inserted into and fixedly connected to the inner side of the housing 21. A movable cavity 25 is provided on the inner side of the mounting plate 24. A limiting tooth 26 is fixedly connected to the inner side of the movable cavity 25. A hole 27 is provided on the side of the mounting plate 24 away from the pressure transmitter body 1. A telescopic rod 28 is inserted into the hole 27, and the diameter of the telescopic rod 28 is smaller than the diameter of the hole 27. One end of the telescopic rod 28 located outside the movable cavity 25 is fixedly connected to a side fastening plate 29. A tension rod 210 is inserted into and slidably connected inside the side fastening plate 29. A locking plate 211 is fixedly connected to the bottom end of the tension rod 210. A spring 215 is sleeved on the outside of the tension rod 210. One end of the spring 215 is fixedly connected to the top surface of the locking plate 211, and the other end of the spring 215 is fixedly connected to the inner side of the side fastening plate 29. Align the equipment connecting pipe 4 with the mounting flange 22 and bring it close. Its end face will push the trigger rod 217 to move into the movable cavity 25. The trigger rod 217 will drive the lifting block 218 to move accordingly. The lifting block 218 contacts and lifts the free end of the pressure plate 214, causing it to rotate against the elastic force of the torsion spring 216. The lifted pressure plate 214 then presses down on the baffle 213, causing it to separate from the limiting tooth 26 and releasing the lock on the telescopic rod 28. At this time, the telescopic rod 28 retracts into the movable cavity 25 under the pulling force of the second spring 212, and drives the side fastening plate 29 to move inward until the side fastening plate 29 is tightly attached to the outer surface of the equipment connecting pipe 4. If the mounting flange of the equipment connecting pipe 4 is thick, after the side fastening plate 29 initially attaches and stops, the locking plate 211 can be pulled down further. The tension rod 210 then slides within the side fastening plate 29 and stretches the spring 215, causing the locking plate 211 to move downwards and press tightly against the flange end face of the equipment connecting pipe 4. Then, when the thrust on the equipment connecting pipe 4 is removed, the trigger rod 217 and the lifting block 218 return to their original positions under the action of the internal reset mechanism or spring. The pressure plate 214 returns to its initial tilted posture under the action of the torsion spring 216 and no longer presses the baffle 213. Under the tendency of the telescopic rod 28 and the side fastening plate 29 as a whole to move towards the mounting plate 24 due to the contraction of the spring 215, the baffle 213 engages with the limiting tooth 26 to achieve one-way locking. Thus, through the synergistic action of the locking plate 211 and the side fastening plate 29, the equipment connecting pipe 4 is firmly clamped onto the mounting flange 22.

[0023] Example 2: Based on Example 1, the solution in Example 1 is further described in detail below with reference to the specific working method, such as... Figures 1 to 5 As shown below, see details: In a preferred embodiment, a second spring 212 is sleeved on the outer side of the telescopic rod 28. One end of the second spring 212 is fixedly connected to the surface of the side fastening plate 29, and the other end of the second spring 212 is fixedly connected to the surface of the mounting plate 24.

[0024] In a preferred embodiment, a pressure plate 214 is hinged to the surface of the movable cavity 25 near the hole 27, and a torsion spring 216 is fixedly connected between the pressure plate 214 and the inner wall of the movable cavity 25.

[0025] In a preferred embodiment, a baffle 213 is fixedly connected to the bottom of one end of the telescopic rod 28 located in the movable cavity 25, and a trigger rod 217 is slidably connected through and through the mounting flange 22. The trigger rod 217 also passes through the mounting plate 24 and is inserted into the movable cavity 25. A lifting block 218 is fixedly connected to one end of the trigger rod 217 located in the movable cavity 25.

[0026] The working process of this utility model is as follows: First, under the action of the torsion spring 216, the pressure plate 214 maintains an inclined state with its free end facing the hole 27. During installation, align the equipment connecting pipe 4 with the mounting flange 22 and bring it close. Its end face will push the trigger rod 217 to move into the movable cavity 25. The trigger rod 217 drives the lifting block 218 to move accordingly. The lifting block 218 contacts and lifts the free end of the pressure plate 214, causing it to rotate against the elastic force of the torsion spring 216. The lifted pressure plate 214 then presses down on the baffle 213, causing it to separate from the limiting tooth 26 and releasing the lock on the telescopic rod 28. At this time, the telescopic rod 28 retracts into the movable cavity 25 under the pulling force of the second spring 212, and drives the side fastening plate 29 to move inward until the side fastening plate 29 is tightly attached to the outer surface of the equipment connecting pipe 4. If the mounting flange of the equipment connecting pipe 4 is thick, after the side fastening plate 29 initially attaches and stops, the locking plate 211 can be pulled down further. The tension rod 210 then slides within the side fastening plate 29 and stretches the spring 215, causing the locking plate 211 to move downwards and press tightly against the flange end face of the equipment connecting pipe 4. Then, when the thrust on the equipment connecting pipe 4 is removed, the trigger rod 217 and the lifting block 218 return to their original positions under the action of the internal reset mechanism or spring. The pressure plate 214 returns to its initial tilted posture under the action of the torsion spring 216 and no longer presses the baffle 213. Under the tendency of the telescopic rod 28 and the side fastening plate 29 as a whole to move towards the mounting plate 24 due to the contraction of the spring 215, the baffle 213 engages with the limiting tooth 26 to achieve one-way locking. Thus, through the synergistic action of the locking plate 211 and the side fastening plate 29, the equipment connecting pipe 4 is firmly clamped onto the mounting flange 22. During disassembly, after removing the equipment connecting pipe 4, the trigger rod 217 resets, the pressure plate 214 rotates, the baffle 213 disengages from the limiting tooth 26, and the entire adapter connection assembly 2 returns to its initial state under the push of the second spring 212, ready for the next use. The above is the working principle of this pressure transmitter.

Claims

1. A pressure transmitter, comprising a pressure transmitter body (1) and a device connecting pipe (4), characterized in that: The surface of the pressure transmitter body (1) is provided with a control panel (3); It also includes an adapter connection component (2) for adapting to different sizes of equipment connection pipes (4) for installation; The adapter connection assembly (2) includes a housing (21), the bottom of the pressure transmitter body (1) passes through the housing (21), and the housing (21) is fixedly connected to the pressure transmitter body (1). The bottom of the pressure transmitter body (1) is fixedly connected to a mounting flange (22), and a nut mounting groove (23) is provided on the surface of the mounting flange (22). A mounting plate (24) is inserted into and fixedly connected to the inner side of the housing (21), and a movable cavity (25) is provided on the inner side of the mounting plate (24). A limiting tooth (26) is fixedly connected to the inner side of the movable cavity (25), and a hole (27) is provided on the side of the mounting plate (24) away from the pressure transmitter body (1).

2. A pressure transmitter according to claim 1, characterized in that: A telescopic rod (28) is inserted into the hole (27), and the diameter of the telescopic rod (28) is smaller than the diameter of the hole (27).

3. A pressure transmitter according to claim 2, characterized in that: The telescopic rod (28) is fixedly connected to a side fastening plate (29) at one end outside the movable cavity (25), and a tensioning rod (210) is inserted into and slidably connected inside the side fastening plate (29).

4. A pressure transmitter according to claim 3, characterized in that: The bottom end of the tension rod (210) is fixedly connected to a locking plate (211), and a spring (215) is sleeved on the outside of the tension rod (210). One end of the spring (215) is fixedly connected to the top surface of the locking plate (211), and the other end of the spring (215) is fixedly connected to the inner side of the side fastening plate (29).

5. A pressure transmitter according to claim 4, characterized in that: The telescopic rod (28) is fitted with a second spring (212) on its outer side. One end of the second spring (212) is fixedly connected to the surface of the side fastening plate (29), and the other end of the second spring (212) is fixedly connected to the surface of the mounting plate (24).

6. A pressure transmitter according to claim 5, characterized in that: A pressure plate (214) is hinged to the surface of the movable cavity (25) near the hole (27), and a torsion spring (216) is fixedly connected between the pressure plate (214) and the inner wall of the movable cavity (25).

7. A pressure transmitter according to claim 2, characterized in that: The telescopic rod (28) is fixedly connected to a baffle (213) at one end of the movable cavity (25). A trigger rod (217) is slidably connected through the mounting flange (22). The trigger rod (217) passes through the mounting plate (24) and is inserted into the movable cavity (25). A lifting block (218) is fixedly connected to one end of the trigger rod (217) in the movable cavity (25).

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