Anti-dust interference natural gas ultrasonic flowmeter transducer protection cover

Abstract

The utility model provides natural gas ultrasonic flowmeter transducer protection cover of dust interference resistance, including pipeline, the movable installation of pipeline has U type seat, the movable installation of extruding plate has between U type seat, the one end of extruding plate is fixed with rubber board, the top of pipeline is movably installed in one side of rubber board, the side of U type seat rotatory mounting has fixed bolt, the inner wall of U type seat is opened and has fixed groove, the movable installation of fixed groove's inside has extruding seat, the one end of extruding seat is installed in fixed bolt through bearing seat, the top welding of U type seat has arc -shaped seat, the side of arc -shaped seat is opened and has internal thread. This natural gas ultrasonic flowmeter transducer protection cover of dust interference resistance realizes the shielding seal between arc -shaped seat through the rotation of protection seat, and protection seat and arc -shaped seat cooperate and realize the overall double protection for the transducer in the inside, effectively avoid the damage caused by external force collision.

Description

Technical Field

[0001] This utility model relates to the field of transducer protection equipment, specifically to a protective cover for a natural gas ultrasonic flow meter transducer that resists dust interference. Background Technology

[0002] The transducers and wiring of existing pipeline ultrasonic flow meters are mostly exposed and lack a protective housing, making them susceptible to dust during use. On the one hand, gas ultrasonic flow meters are often used to detect combustible gases, and exposing them to the environment will pose certain safety hazards. On the other hand, the use of these flow meters may damage the sensors and their wiring.

[0003] According to the patent document CN218297259U, a transducer protection structure for a gas ultrasonic flow meter includes a valve body, a side cover, and a top cover. The valve body has a through-flow channel in the middle and a square structure in the middle. A wiring hole and a mounting hole are provided on the side wall of the square structure. A wiring port is provided at the top of the square structure, penetrating the upper wall of the valve body and connecting to the wiring hole. A transducer is installed in the mounting hole. In use, the transducer is installed in the mounting hole, and the transducer wiring enters the valve body from the wiring hole, passes through the wiring port, and then through the wiring hole to the outside of the top cover, allowing connection to a compatible instrument. During wiring, the transducer and its wiring are located inside the transducer protection structure, completely isolated from the outside, reducing safety hazards and damage risks. However, while this solution provides protection for the wiring, it cannot be quickly clamped and fixed onto the pipeline during use, causing inconvenience. Therefore, there is an urgent need to design a protective cover for the transducer of a natural gas ultrasonic flow meter that is resistant to dust interference to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a protective cover for the transducer of a natural gas ultrasonic flow meter that is resistant to dust interference, so as to solve the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides a protective cover for the transducer of a natural gas ultrasonic flow meter that is resistant to dust interference. The cover includes a pipe, a U-shaped seat movably mounted on the pipe, a compression plate movably mounted between the U-shaped seats, a rubber plate fixed to one end of the compression plate, a side of the rubber plate movably mounted on the top of the pipe, a fixing bolt rotatably mounted on the side of the U-shaped seat, a fixing groove formed on the inner wall of the U-shaped seat, a compression seat movably mounted inside the fixing groove, and the compression seat mounted on one end of the fixing bolt via a bearing seat.

[0006] Furthermore, an arc-shaped seat is welded to the top of the U-shaped seat, and the side of the arc-shaped seat has an internal thread. A protective seat is rotatably mounted on the arc-shaped seat.

[0007] Furthermore, the top of the protective seat has a groove, a handle is fixed inside the groove, and an opening is formed between the protective seat and the groove.

[0008] Furthermore, a reinforcing seat is fixed to the side of the protective seat, a ring seat is fixed inside the protective seat, and a rotating seat is rotatably mounted on the bottom of the ring seat.

[0009] Furthermore, a positioning tube is fixed to the bottom of the rotating seat, and a positioning column is movably installed inside the positioning tube. One end of the bottom of the positioning column is movably installed on the top of the extrusion plate.

[0010] Furthermore, the top of the extrusion plate has a limit hole, a slider is fixed on the inner wall of the U-shaped seat, a support mechanism is fixedly installed on the slider, a groove is opened on the side of the extrusion plate, and the slider is movably installed inside the groove.

[0011] Furthermore, a damper is fixed inside the positioning tube, and a reset mechanism is installed on the side of the damper. The two ends of the reset mechanism are respectively fixed to the positioning tube and the positioning column.

[0012] Furthermore, a transducer is fixedly installed on the pipeline, and the transducer is movably installed inside the arc-shaped seat and the protective seat.

[0013] The beneficial effects of this utility model are:

[0014] 1. The protective cover for the transducer of the natural gas ultrasonic flow meter, which is resistant to dust interference, achieves a sealing between the arc-shaped seats by rotating the protective seat. The protective seat and the arc-shaped seat work together to provide comprehensive double protection for the internal transducer, effectively avoiding damage caused by external impact.

[0015] 2. The protective cover for the transducer of the natural gas ultrasonic flow meter, which is resistant to dust interference, is designed so that the positioning column is pushed to contact the limiting hole by the rotation of the protective seat. As the protective seat descends, the positioning tube and the positioning column push the extrusion plate downward to complete the extrusion and fixation of the pipeline. After the rubber plate is extruded, it completes the wrapping of the pipeline. The bottom of the protective seat and the top of the extrusion plate cooperate to form an effective seal, reducing the damage caused by dust entering the transducer.

[0016] 3. The protective cover for the transducer of the natural gas ultrasonic flow meter, which is resistant to dust interference, has a double limit on the extrusion plate through the positioning column and the slider. With the support of the slider and the positioning column, the vertical up and down movement of the extrusion plate is ensured to quickly clamp the pipeline. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the transducer protective cover for the natural gas ultrasonic flow meter that resists dust interference, as described in this utility model.

[0018] Figure 2 This is a schematic diagram of the arc-shaped base of the transducer protective cover for the ultrasonic flow meter of natural gas, which is designed to resist dust interference.

[0019] Figure 3 This is a schematic diagram of the ring seat structure of the transducer protective cover for the natural gas ultrasonic flow meter, which is resistant to dust interference according to this utility model.

[0020] Figure 4 This is a cross-sectional schematic diagram of the positioning tube of the transducer protective cover of the natural gas ultrasonic flow meter with dust interference resistance according to this utility model.

[0021] Figure 5 This is a side view of the U-shaped base of the transducer protective cover for the natural gas ultrasonic flow meter, which is designed to resist dust interference.

[0022] In the diagram: 1. Pipe; 2. U-shaped seat; 3. Fixing bolt; 4. Extrusion plate; 5. Rubber plate; 6. Protective seat; 7. Opening; 8. Handle; 9. Reinforcing seat; 10. Slider; 11. Support mechanism; 12. Limiting hole; 13. Slide groove; 14. Arc seat; 15. Ring seat; 16. Rotating seat; 17. Positioning tube; 18. Positioning column; 19. Damper; 20. Reset mechanism; 21. Fixing groove; 22. Extrusion seat; 23. Bearing seat. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a protective cover for the transducer of a natural gas ultrasonic flow meter that resists dust interference, including a pipe 1, a U-shaped seat 2 movably installed on the pipe 1, an extrusion plate 4 movably installed between the U-shaped seats 2, a rubber plate 5 fixed to one end of the extrusion plate 4, a side of the rubber plate 5 movably installed on the top of the pipe 1, a fixing bolt 3 rotatably installed on the side of the U-shaped seat 2, a fixing groove 21 is opened on the inner wall of the U-shaped seat 2, an extrusion seat 22 is movably installed inside the fixing groove 21, the extrusion seat 22 is installed on one end of the fixing bolt 3 through a bearing seat 23, an arc-shaped seat 14 is welded to the top of the U-shaped seat 2, an internal thread is opened on the side of the arc-shaped seat 14, a protective seat 6 is rotatably installed on the arc-shaped seat 14, the arc-shaped seat 14 provides support force for the rotation and descent of the protective seat 6, and after the protective seat 6 is installed, the top of the extrusion plate 4 contacts the bottom of the protective seat 6 for sealing.

[0025] In this embodiment, the top of the protective seat 6 has a groove, and a handle 8 is fixed inside the groove. An opening 7 is opened between the protective seat 6 and the groove. A reinforcing seat 9 is fixed to the side of the protective seat 6. The opening 7 facilitates the passage of airflow at the top of the protective seat 6. When the airflow flows through the opening 7, it can remove the high temperature on the protective seat 6. An annular seat 15 is fixed inside the protective seat 6. A rotating seat 16 is rotatably installed at the bottom of the annular seat 15. A positioning tube 17 is fixed at the bottom of the rotating seat 16. A positioning column 18 is movably installed inside the positioning tube 17. One end of the bottom of the positioning column 18 is movably installed on the top of the extrusion plate 4. After the positioning column 18 is installed on the extrusion plate 4, it can limit and fix the extrusion plate 4. In addition, the positioning column 18 can be used to push the extrusion plate 4 downward later.

[0026] In this embodiment, a limiting hole 12 is opened at the top of the extrusion plate 4. A slider 10 is fixed on the inner wall of the U-shaped seat 2. A support mechanism 11 is fixedly installed on the slider 10. The support mechanism 11 is a support spring. After the support spring is compressed, it generates a deformation force. The support mechanism 11 generates an upward rebound force in the later stage. After the protective seat 6 loses its pressure on the extrusion plate 4, the support mechanism 11 pushes the extrusion plate 4 to move upward for rapid disassembly. A sliding groove 13 is opened on the side of the extrusion plate 4. The slider 10 is movably installed inside the sliding groove 13. The positioning tube 17 is fixed inside. There is a damper 19, and a reset mechanism 20 is installed on the side of the damper 19. The two ends of the reset mechanism 20 are fixed on the positioning tube 17 and the positioning column 18 respectively. A transducer is fixedly installed on the pipe 1. The transducer is movably installed inside the arc-shaped seat 14 and the protective seat 6. The reset mechanism 20 is a reset spring. Under the compression of the reset mechanism 20, the damper 19 limits the contraction of the positioning column 18. After the damper 19 contracts to the maximum space, the positioning column 18 stops contracting. Thus, the positioning column 18 is pushed by the positioning tube 17 to squeeze the compression plate 4 for limitation and fixation.

[0027] Working steps: When using this device, install the U-shaped seat 2 and the arc-shaped seat 14 from the bottom of the pipe 1 upwards. After the U-shaped seat 2 is installed on the pipe 1, rotate the fixing bolt 3 with a tool. The rotating fixing bolt 3 pushes the extrusion seat 22 inward to extrude. After the extrusion seat 22 is extruded inward, it contacts the pipe 1. The extrusion deformation of the extrusion seat 22 provides left and right limits for the U-shaped seat 2. Install the extrusion plate 4 on the slider 10 and the support mechanism 11 through the slide groove 13. Rotate the protective seat 6 onto the arc-shaped seat 14. Before the protective seat 6 rotates, install one end of the positioning pin 18 inside the limiting hole 12. After the positioning pin 18 limits the position, select the protective seat 6. When the protective seat 6 rotates, the positioning pin 18 provides a limit for the rotating seat 16. The protective seat 6 drives the ring seat 15 to rotate on the rotating seat 16. As the protective seat 6 descends, the ring seat 15 and the rotating seat 16 move downwards. The rotating seat 16 moves downwards and squeezes the positioning tube 17. Under the squeezing, the damper 19 and the reset mechanism 20 of the positioning tube 17 are subjected to squeezing force. After the damper 19 contracts to the maximum space, the positioning column 18 stops contracting. When the positioning column 18 can no longer move, one end of the positioning column 18 pushes the squeezing plate 4 to move downwards. The squeezing plate 4 squeezes the rubber plate 5 to contact and squeeze the top of the pipe 1. The squeezing causes the rubber plate 5 to deform and wrap around the pipe 1, achieving a seal between the U-shaped seat 2 and the pipe 1. When the bottom of the protective seat 6 contacts the squeezing plate 4, the protective seat 6 stops descending. The protective seat 6 and the top of the squeezing plate 4 cooperate to achieve an internal seal. The seal effectively prevents dust from entering the interior of the arc-shaped seat 14 and affecting the transducer.

[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A protective cover for the transducer of a natural gas ultrasonic flow meter resistant to dust interference, comprising a pipeline (1), characterized in that, A U-shaped seat (2) is movably installed on the pipe (1), and an extrusion plate (4) is movably installed between the U-shaped seats (2). A rubber plate (5) is fixed to one end of the extrusion plate (4), and one side of the rubber plate (5) is movably installed on the top of the pipe (1). A fixing bolt (3) is rotatably installed on the side of the U-shaped seat (2). A fixing groove (21) is opened on the inner wall of the U-shaped seat (2), and an extrusion seat (22) is movably installed inside the fixing groove (21). The extrusion seat (22) is installed on one end of the fixing bolt (3) through a bearing seat (23).

2. The protective cover for the transducer of a natural gas ultrasonic flow meter resistant to dust interference as described in claim 1, characterized in that, The top of the U-shaped seat (2) is welded with an arc-shaped seat (14), the side of the arc-shaped seat (14) is threaded internally, and a protective seat (6) is rotatably mounted on the arc-shaped seat (14).

3. The protective cover for the transducer of a natural gas ultrasonic flow meter with dust interference resistance according to claim 2, characterized in that, The top of the protective seat (6) has a groove, and a handle (8) is fixed inside the groove. An opening (7) is made between the protective seat (6) and the groove.

4. The protective cover for the transducer of a natural gas ultrasonic flow meter with dust interference resistance according to claim 3, characterized in that, A reinforcing seat (9) is fixed to the side of the protective seat (6), and a ring seat (15) is fixed inside the protective seat (6). A rotating seat (16) is rotatably installed at the bottom of the ring seat (15).

5. The protective cover for the transducer of a natural gas ultrasonic flow meter with dust interference resistance according to claim 4, characterized in that, The bottom of the rotating seat (16) is fixed with a positioning tube (17), and a positioning column (18) is movably installed inside the positioning tube (17). One end of the bottom of the positioning column (18) is movably installed on the top of the extrusion plate (4).

6. The protective cover for the transducer of a natural gas ultrasonic flow meter resistant to dust interference as described in claim 1, characterized in that, The top of the extrusion plate (4) has a limiting hole (12), a slider (10) is fixed on the inner wall of the U-shaped seat (2), a support mechanism (11) is fixedly installed on the slider (10), a groove (13) is opened on the side of the extrusion plate (4), and the slider (10) is movably installed inside the groove (13).

7. The protective cover for the transducer of a natural gas ultrasonic flow meter resistant to dust interference as described in claim 5, characterized in that, A damper (19) is fixed inside the positioning tube (17), and a reset mechanism (20) is installed on the side of the damper (19). The two ends of the reset mechanism (20) are fixed on the positioning tube (17) and the positioning post (18) respectively.

8. The protective cover for the transducer of a natural gas ultrasonic flow meter resistant to dust interference as described in claim 1, characterized in that, A transducer is fixedly installed on the pipe (1), and the transducer is movably installed inside the arc-shaped seat (14) and the protective seat (6).

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