Pressure sensor with ventilation structure

Abstract

The utility model relates to the technical field of pressure sensors, and particularly discloses a pressure sensor with a ventilation structure, which comprises a sensor body, the sensor body is connected with a connecting line, the side wall of the sensor body is provided with a ventilation threaded hole, the ventilation threaded hole is internally provided with a ventilation structure, and the ventilation structure is connected with the connecting line. The ventilation structure comprises a circular pipe, an annular plate, a rubber ball, a circular ring, a spring and a threaded sleeve; threads are machined on the two sides of the outer portion of the round pipe respectively. The sensor body is installed on a detected pipeline and can detect the pressure in the detected pipeline, if the detected pipeline is blocked and the like, the pressure is increased instantly, and the sensor body detects that the pressure is close to a peak value, gas enters the round pipe through the ventilation threaded hole, the gas ejects the rubber ball in the annular plate open, the spring is compressed at the moment, and the pressure in the pipeline is detected to be close to the peak value. Therefore, the sensor body is prevented from being damaged due to the fact that the sensor body is in a peak state for a long time.

Description

Technical Field

[0001] The utility model relates to the field of pressure sensors, in particular to a pressure sensor with a breathable structure. Background Art

[0002] With the continuous development of society and the improvement of people's living standards, pressure sensors are needed in many fields to monitor the required pressure parameters, especially in various pipelines.

[0003] However, during use, current pressure sensors have pressure peaks. If there is a blockage in the installed pipeline, the pressure sensor will be damaged if it is at the pressure peak for a long time. Utility Model Content

[0004] The purpose of the present utility model is to provide a pressure sensor with a breathable structure to solve the problem raised in the above background technology that during use, the current pressure sensor has a pressure peak. If the pressure sensor is blocked in the installed pipeline, the pressure sensor will be damaged if it is at the pressure peak for a long time.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a pressure sensor with a breathable structure, comprising a sensor body, a connecting wire connected to the sensor body, a breathable threaded hole formed on a side wall of the sensor body, a breathable structure installed in the breathable threaded hole, the breathable structure comprising a circular tube, an annular plate, a rubber ball, a circular ring, a spring, and a threaded sleeve;

[0006] Threads are processed on both sides of the outside of the round tube, one side of the round tube is screwed into the breathable threaded hole, the annular plate is installed in the round tube, the rubber ball is installed in the circular ring, one end of the round tube is processed inside, the threaded sleeve is sleeved on the thread in the round tube, the spring is placed between the circular ring and the threaded sleeve, and the rubber ball is inserted into the annular plate.

[0007] Preferably, a first L-shaped plate is mounted on the sensor body, a first arc-shaped plate is mounted on the first L-shaped plate, and the first arc-shaped plate clamps the connecting line.

[0008] Preferably, a second L-shaped plate is mounted on the sensor body, a second arc-shaped plate is mounted on the second L-shaped plate, and the second arc-shaped plate clamps the connecting line.

[0009] Preferably, a first adhesive block is adhered to the first L-shaped plate, and the first adhesive block is adhered to the sensor body.

[0010] Preferably, a second adhesive block is adhered to the second L-shaped plate, and the second adhesive block is adhered to the sensor body.

[0011] Preferably, a six-sided sleeve is provided outside the sensor body, and a limiting structure is installed between the six-sided sleeve and the sensor body. The number of the limiting structures is six, and the limiting structures are distributed in a circular shape and equidistantly between the six-sided sleeve and the sensor body. The limiting structure includes a limiting groove and a limiting block. The limiting groove is opened in the six-sided sleeve, and the limiting block is installed outside the sensor body.

[0012] Preferably, a threaded pipe is sleeved on the thread on the other side of the round pipe, a connecting pipe is connected to the threaded pipe, and an L-shaped pipe is connected to the connecting pipe.

[0013] Preferably, a trumpet-shaped tube is installed in the threaded tube, a bearing is installed in the connecting tube, and the trumpet-shaped tube is installed in the inner ring of the bearing.

[0014] The utility model has at least the following beneficial effects: the round tube is screwed into the breathable threaded hole on the sensor body, and then the sensor body is installed on the pressure detection device of the pressure sensor, and the threaded sleeve is screwed and moved back and forth in the round tube to adjust the elastic coefficient of the spring. When the pressure displayed by the sensor body is less than the peak pressure, the threaded sleeve is fixed, the sensor body is removed and installed on the measured pipeline, and the pressure in the measured pipeline can be detected. If the measured pipeline is blocked or the like, the pressure increases instantaneously. At this time, when the pressure detected by the sensor body is close to the peak pressure, the gas enters the round tube through the breathable threaded hole, and the gas pushes open the rubber ball in the annular plate. At this time, the spring is compressed, realizing the breathable function of the sensor body, and avoiding the sensor body being in the peak state for a long time, which damages the sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the structure of the six-sided sleeve, limiting groove and limiting block of the utility model.

[0017] Figure 3 This is a schematic diagram of the circular tube, annular plate and rubber ball structure of the utility model.

[0018] Figure 4 It is a schematic diagram of the round tube and threaded sleeve structure of the utility model.

[0019] Figure 5 This is a schematic diagram of the threaded pipe, connecting pipe and L-shaped pipe structure of the utility model.

[0020] In the figure: 1. Sensor body; 2. Connecting wire; 3. Ventilation threaded hole; 4. Ventilation structure; 5. Round tube; 6. Ring plate; 7. Rubber ball; 8. Ring; 9. Spring; 10. Threaded sleeve; 11. Threaded tube; 12. Connecting tube; 13. L-shaped tube; 14. Trumpet-shaped tube; 15. Bearing; 16. First L-shaped plate; 17. First arc-shaped plate; 18. Second L-shaped plate; 19. Second arc-shaped plate; 20. First rubber block; 21. Second rubber block; 22. Six-sided sleeve; 23. Limiting structure; 24. Limiting groove; 25. Limiting block. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution for a pressure sensor with a breathable structure: a pressure sensor with a breathable structure, comprising a sensor body 1, the model of the sensor body 1 being PT131, a connecting wire 2 (which can be connected by threading) being connected to the sensor body 1, the connecting wire 2 being an output signal wire, a breathable threaded hole 3 being opened on the side wall of the sensor body 1, a breathable structure 4 being installed in the breathable threaded hole 3, the breathable structure 4 comprising a circular tube 5, an annular plate 6, a rubber ball 7, a circular ring 8, a spring 9 and a threaded sleeve 10;

[0022] Threads are processed on both sides of the outside of the round tube 5. One side of the round tube 5 is screwed into the breathable threaded hole 3. The annular plate 6 is installed in the round tube 5. The rubber ball 7 is installed in the ring 8. The rubber ball 7 is made of fluororubber. One end of the round tube 5 is internally processed with threads. The threaded sleeve 10 is sleeved on the thread inside the round tube 5. The spring 9 is placed between the ring 8 and the threaded sleeve 10. The rubber ball 7 is inserted into the annular plate 6. The round tube 5 is screwed into the breathable threaded hole 3 on the sensor body 1. Then the sensor body 1 is installed on the pressure sensor pressure detection equipment (on the air pump tube). The threaded sleeve 10 is screwed back and forth in the round tube 5 to adjust the pressure. The elastic coefficient of the spring 9 is such that when the pressure displayed by the sensor body 1 is lower than the peak value (the displayed pressure is about 90%), the threaded sleeve 10 is fixed, the sensor body 1 is removed and installed on the measured pipeline, and the pressure in the measured pipeline can be detected. If the measured pipeline is blocked or the like, the pressure increases instantly. At this time, when the pressure detected by the sensor body 1 is close to the peak value, the gas enters the circular tube 5 through the vent threaded hole 3, and the gas pushes open the rubber ball 7 in the annular plate 6. At this time, the spring 9 is compressed, realizing the ventilation function of the sensor body 1, and preventing the sensor body 1 from being in the peak state for a long time and damaging the sensor body 1.

[0023] The sensor body 1 is provided with a first L-shaped plate 16, on which a first adhesive block 20 is adhered, which is adhered to the sensor body 1, and a first curved plate 17 is provided on the first L-shaped plate 16, which clamps the connecting line 2, and a second L-shaped plate 18 is provided on the sensor body 1, on which a second adhesive block 21 is adhered, which is adhered to the sensor body 1, and a second curved plate 19 is provided on the second L-shaped plate 18, which is adhered to the second adhesive block 21. The L-shaped plate 19 clamps the connecting line 2 (the glue block can be made of hot melt glue or strong glue), so that the first L-shaped plate 16 is fixed to the upper side of the sensor body 1 through the first glue block 20, and then the second L-shaped plate 18 is fixed to the other upper side of the sensor body 1 through the second glue block 21, so that the first curved plate 17 and the second curved plate 19 are staggered from bottom to top to clamp the connecting line 2, so that the root of the connecting line 2 is in a vertical state, to avoid repeated bending and causing damage to the connection point between the connecting line 2 and the sensor body 1.

[0024] A six-sided sleeve 22 is provided outside the sensor body 1. The interior of the six-sided sleeve 22 is circular and consistent with the external dimensions of the installation position of the sensor body 1. A limiting structure 23 is installed between the six-sided sleeve 22 and the sensor body 1. The number of the limiting structures 23 is six, and the limiting structures 23 are equidistantly distributed in a ring shape between the six-sided sleeve 22 and the sensor body 1. The limiting structure 23 includes a limiting groove 24 and a limiting block 25. The limiting groove 24 is opened in the six-sided sleeve 22, and the limiting block 25 is installed outside the sensor body 1. Before use, the six-sided sleeve 22 is inserted into the sensor body 1 from bottom to top, and the limiting block 25 is stuck in the limiting groove 24, so that the six-sided sleeve 22 is fixed outside the sensor body 1. When installing the sensor body 1, the six-sided sleeve 22 can be screwed with an external hexagonal wrench, and when the surface of the six-sided sleeve 22 is worn, it can be disassembled and replaced to avoid replacing the sensor body 1.

[0025] A threaded tube 11 is sleeved on the thread on the other side of the round tube 5, and a connecting tube 12 is connected to the threaded tube 11, and an L-shaped tube 13 is connected to the connecting tube 12. A trumpet-shaped tube 14 is installed in the threaded tube 11, and a bearing 15 is installed in the connecting tube 12. The trumpet-shaped tube 14 is installed in the inner ring of the bearing 15. The threaded tube 11 and the connecting tube 12 are connected to the bearing 15 through the trumpet-shaped tube 14. The bearing 15 can use a sealed bearing to rotate the threaded tube 11, and the trumpet-shaped tube 14 in the threaded tube 11 rotates on the connecting tube 12 through the bearing 15, so that the threaded tube 11 is screwed into the outside of the round tube 5. At this time, the L-shaped tube 13 hangs down, so that the exhausted gas is ejected downward through the L-shaped tube 13 to avoid the harm caused by direct injection.

[0026] When using the pressure sensor with a breathable structure, first screw the round tube 5 into the breathable threaded hole 3 on the sensor body 1, then install the sensor body 1 on the pressure detection equipment of the pressure sensor (on the air pump tube), screw the threaded sleeve 10 to move back and forth in the round tube 5, so as to adjust the elastic coefficient of the spring 9. When the pressure displayed by the sensor body 1 is less than the peak pressure (the displayed pressure is about 90%), the threaded sleeve 10 is fixed, and the sensor body 1 is removed. The six-sided sleeve 22 is inserted into the sensor body 1 from bottom to top, and the limit block 25 is stuck in the limit groove 24, so that the six-sided sleeve 22 is fixed to the outside of the sensor body 1. When installing the sensor body 1, an external hexagonal wrench can screw the six-sided sleeve 22, so that the sensor body 1 is installed on the measured pipeline, so that the threaded tube 11 rotates, and the trumpet-shaped tube 14 in the threaded tube 11 rotates on the connecting tube 12 through the bearing 15, and the threaded tube 11 is screwed into the outside of the round tube 5. At this time, the L-shaped tube 13 Hang down, so that the first L-shaped plate 16 is fixed to the upper side of the sensor body 1 through the first rubber block 20, and then the second L-shaped plate 18 is fixed to the other side of the upper part of the sensor body 1 through the second rubber block 21, so that the first arc plate 17 and the second arc plate 19 are staggered up and down to clamp the connecting line 2, so that the root of the connecting line 2 is in a vertical state, avoiding repeated bending and causing the connecting line 2 to break and be damaged at the connection point between the sensor body 1. The sensor body 1 can detect the pressure in the measured pipeline. If the measured pipeline is blocked or the like, the pressure increases instantly. At this time, when the pressure detected by the sensor body 1 is close to the peak value, the gas enters the circular tube 5 through the breathable threaded hole 3, and the gas pushes the rubber ball 7 in the annular plate 6 open. At this time, the spring 9 is compressed to realize the ventilation function of the sensor body 1, and the discharged gas is ejected downward through the L-shaped tube 13 to avoid the harm caused by direct injection, and at the same time avoid the sensor body 1 from being in the peak state for a long time, which damages the sensor body 1.

Claims

1. A pressure sensor with a breathable structure, comprising a sensor body (1), characterized in that: The sensor body (1) is connected to a connecting wire (2), a ventilating threaded hole (3) is provided on a side wall of the sensor body (1), a ventilating structure (4) is installed in the ventilating threaded hole (3), and the ventilating structure (4) comprises a circular tube (5), an annular plate (6), a rubber ball (7), a circular ring (8), a spring (9) and a threaded sleeve (10); The outer sides of the circular tube (5) are respectively processed with threads, one side of the circular tube (5) is screwed into the ventilating threaded hole (3), the annular plate (6) is installed in the circular tube (5), the rubber ball (7) is installed in the circular ring (8), one end of the circular tube (5) is internally processed with threads, the threaded sleeve (10) is sleeved on the threads in the circular tube (5), the spring (9) is placed between the circular ring (8) and the threaded sleeve (10), and the rubber ball (7) is inserted into the annular plate (6).

2. The pressure sensor with a breathable structure according to claim 1, characterized in that: A first L-shaped plate (16) is mounted on the sensor body (1), a first arc-shaped plate (17) is mounted on the first L-shaped plate (16), and the first arc-shaped plate (17) clamps the connecting line (2).

3. The pressure sensor with a breathable structure according to claim 1, characterized in that: A second L-shaped plate (18) is mounted on the sensor body (1), a second arc-shaped plate (19) is mounted on the second L-shaped plate (18), and the second arc-shaped plate (19) clamps the connecting line (2).

4. The pressure sensor with a breathable structure according to claim 2, characterized in that: A first glue block (20) is adhered to the first L-shaped plate (16), and the first glue block (20) is adhered to the sensor body (1).

5. The pressure sensor with a breathable structure according to claim 3, characterized in that: A second adhesive block (21) is adhered to the second L-shaped plate (18), and the second adhesive block (21) is adhered to the sensor body (1).

6. The pressure sensor with a breathable structure according to claim 1, characterized in that: A six-sided sleeve (22) is provided outside the sensor body (1), and a limiting structure (23) is installed between the six-sided sleeve (22) and the sensor body (1). The number of the limiting structures (23) is six, and the limiting structures (23) are distributed in an annular shape and at equal intervals between the six-sided sleeve (22) and the sensor body (1). The limiting structure (23) includes a limiting groove (24) and a limiting block (25). The limiting groove (24) is opened in the six-sided sleeve (22), and the limiting block (25) is installed outside the sensor body (1).

7. The pressure sensor with a breathable structure according to claim 1, characterized in that: A threaded tube (11) is sleeved on the thread of the other side of the circular tube (5), a connecting tube (12) is connected to the threaded tube (11), and an L-shaped tube (13) is connected to the connecting tube (12).

8. The pressure sensor with a breathable structure according to claim 7, characterized in that: A trumpet-shaped tube (14) is installed in the threaded tube (11), a bearing (15) is installed in the connecting tube (12), and the trumpet-shaped tube (14) is installed in the inner ring of the bearing (15).

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