Sealing structure of pressure sensor

Abstract

The utility model relates to the technical field of pressure sensors, and discloses a sealing structure of a pressure sensor, which comprises a sensor main body and a sensor connecting part arranged on one side of the sensor main body, and further comprises an assembly cylinder arranged on one side of the sensor connecting part, and a polygonal convex block fixedly arranged at one end of the assembly cylinder; the clamping stop block is installed at the end, away from the assembling cylinder, of the multi-edge protruding block, a rotating block is fixedly arranged on the surface of the multi-edge protruding block, a sliding groove matched with the rotating block is formed in the end face, close to the multi-edge protruding block, of the clamping stop block, and clamping holes distributed in a rectangular mode are formed in the surface of the clamping stop block. The assembling port is fixedly arranged on the surface of the sensor connecting part. The structure which is connected with the air outlet pipe and is combined with the sensor main body adopts a split design, and the air outlet pipe can be clamped by performing bolt connection through two groups of oppositely distributed clamping stop blocks and insertion cylinders, so that when the air outlet pipe is damaged and leaks air, the air outlet pipe can be quickly disassembled, assembled and replaced.

Description

Technical Field

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

[0002] A pressure sensor is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to certain rules. Pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors, and are widely used in various industrial automatic control environments.

[0003] The packaging of the pressure sensor generally adopts an integrated structural design and a spiral installation method. However, the integrated design makes it difficult to replace the air outlet pipe when it is damaged. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a closed structure of a pressure sensor, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: comprising: a sensor body and a sensor connecting part installed on one side of the sensor body,

[0006] Also includes:

[0007] The assembly tube is installed on one side of the sensor connection part, and a multi-edge protrusion is fixed on one end of the assembly tube;

[0008] The clamping block is installed at one end of the multi-faceted protrusion away from the assembly cylinder, a rotating block is fixedly arranged on the surface of the multi-faceted protrusion, a sliding groove adapted to the rotating block is provided on the end surface of the clamping block close to the multi-faceted protrusion, and rectangular clamping holes are provided on the surface of the clamping block;

[0009] The assembly port is fixed on the surface of the sensor connection part, and the inner wall of the assembly port is provided with an internal thread matched with the thread of the assembly tube.

[0010] Furthermore, a retaining ring is provided on the inner wall of the assembly opening, and the front end of the assembly cylinder abuts against the surface of the retaining ring.

[0011] Furthermore, an inserting tube is fixedly arranged at the front end of the assembly tube, and the outer diameter of the inserting tube is smaller than the outer diameter of the assembly tube.

[0012] Furthermore, the surface of the insert is provided with locking holes which are distributed opposite to each other.

[0013] Furthermore, the assembly tube, the insertion tube, the multi-faceted protrusion and the clamping block are designed to be split.

[0014] Furthermore, a plurality of groups of sealing filling grooves which are spaced apart are provided on the inner wall of the clamping stopper, and a connecting socket is provided on the surface of the sensor connecting portion.

[0015] Furthermore, an air outlet pipe is inserted into the cavity of the assembly tube, a reinforcement portion is fixedly provided on the outer wall of the air outlet pipe, and a sealing gasket ring portion is fixedly provided on the surface of the reinforcement portion.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The present application adopts a split design for the structure connected to the air outlet pipe and combined with the sensor body. The air outlet pipe can be clamped by bolting two sets of oppositely distributed clamping blocks and insert sleeves. Therefore, when the air outlet pipe is damaged and leaks, it can be quickly disassembled and replaced. During assembly, the sealing gasket ring can be inserted into the preset sealing filling groove, so that the bonding strength between the air outlet pipe and the clamping block is better, and the air outlet pipe is not easy to fall off when pulled, thereby improving the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is an enlarged view of the assembly tube of the utility model;

[0020] Figure 3 This is a structural schematic diagram of the rotating block of the utility model.

[0021] In the figure: 1. sensor body; 2. sensor connection part; 3. connection socket; 4. assembly port; 5. retaining ring; 6. assembly cylinder; 7. insert cylinder; 8. multi-faceted protrusion; 9. clamping block; 10. clamping hole; 11. air outlet pipe; 12. reinforcement part; 13. sealing gasket ring part; 14. sealing filling groove; 15. locking hole; 16. rotating block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3, including: a sensor body 1 and a sensor connecting part 2 installed on one side of the sensor body 1, a connecting socket 3 is arranged on the end face of the sensor connecting part 2 close to the sensor body 1, and the connecting socket 3 is communicated with the cavity of the sensor body 1, an assembly cylinder 6 is installed on one side of the sensor connecting part 2, a multi-faceted protrusion 8 is fixedly arranged at one end of the assembly cylinder 6, the assembly cylinder 6 is provided with an external thread, and a raised assembly port 4 is arranged on the surface of the sensor connecting part 2, and an internal thread is arranged on the inner wall of the assembly port 4, so that the assembly cylinder 6 and the assembly port 4 can be connected through threads, and the connected assembly cylinder 6 is inserted into the inside of the assembly port 4, and a retaining ring 5 of an annular structure is also fixedly arranged on the inner wall of the assembly port 4, so that the front end of the assembly cylinder 6 is pressed against the retaining ring 5 for limiting, a sealing strip can be added between the retaining ring 5 and the assembly cylinder 6 to increase the sealing effect, and the multi-faceted protrusion 8 fixedly connected to the assembly cylinder 6 makes the rotation of the entire assembly cylinder 6 easier to operate, and the end face of the multi-faceted protrusion 8 will eventually fit with the end of the assembly port 4, and adding a sealing ring between the multi-faceted protrusion 8 and the end of the assembly port 4 can also increase the sealing effect;

[0024] The clamping block 9 is installed on the end of the multi-faceted protrusion 8 away from the assembly cylinder 6. A rotating block 16 is fixedly provided on the surface of the multi-faceted protrusion 8. A sliding groove adapted to the rotating block 16 is opened on the end surface of the clamping block 9 close to the multi-faceted protrusion 8. A rectangularly distributed clamping hole 10 is opened on the surface of the clamping block 9. In the process of spiral connection between the assembly cylinder 6 and the assembly port 4, the entire clamping block 9 can be manually held and kept in a static state. The assembly cylinder 6, the insert cylinder 7, the multi-faceted protrusion 8 and the clamping block 9 adopt a split design. Therefore, it is necessary to assemble the assembly cylinder 6, the insert cylinder 7, the multi-faceted protrusion 8 and the clamping block 9 in opposition, and then reinforce them by inserting bolts in multiple groups of clamping holes 10. At the same time, in order to improve stability, an insert cylinder 7 is fixedly provided at the front end of the assembly cylinder 6. The outer diameter of the insert cylinder 7 is smaller than the outer diameter of the assembly cylinder 6. The insert cylinder 7 will extend into the cavity of the sensor connecting part 2. At the same time, oppositely distributed locking holes 15 are opened on the surface of the insert cylinder 7. Similarly, bolt reinforcement is used to make the combination of the entire assembly tube 6, the insertion tube 7, the multi-faceted protrusion 8 and the clamping block 9 tighter. An air outlet pipe 11 is inserted into the cavity of the assembly tube 6. After the air outlet pipe 11 is connected to the sensor body 1, it passes out from the assembly tube 6 and the clamping block 9. The inner wall of the clamping block 9 is provided with a plurality of groups of sealing filling grooves 14 distributed at intervals. The surface of the sensor connecting part 2 is provided with a connecting socket 3. The outer wall of the air outlet pipe 11 is fixedly provided with a reinforcement part 12, and the surface of the reinforcement part 12 is fixedly provided with a sealing gasket ring part 13. In order to improve the sealing effect of the air outlet pipe 11, when assembling the air outlet pipe 11, the sealing gasket ring part 13 is placed in the cavity of the clamping block 9, and multiple groups of sealing gasket ring parts 13 are respectively placed in the grooves of the sealing filling grooves 14. As the clamping block 9 is locked, the sealing gasket ring part 13 is compressed, which can not only improve the anti-pulling effect of the air outlet pipe 11, but also improve the installation tightness of the air outlet pipe 11.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed structure of a pressure sensor, comprising: A sensor body (1) and a sensor connection portion (2) mounted on one side of the sensor body (1), It is characterized by further comprising: An assembly tube (6) is mounted on one side of the sensor connecting portion (2), and a multi-faceted protrusion (8) is fixedly provided at one end of the assembly tube (6); A clamping block (9) is mounted on an end of the polygonal protrusion (8) away from the assembly tube (6); a rotating block (16) is fixedly arranged on the surface of the polygonal protrusion (8); a sliding groove adapted to the rotating block (16) is provided on the end surface of the clamping block (9) close to the polygonal protrusion (8); and clamping holes (10) distributed in rectangular shapes are provided on the surface of the clamping block (9); The assembly port (4) is fixedly arranged on the surface of the sensor connecting portion (2), and the inner wall of the assembly port (4) is provided with an internal thread that matches the thread of the assembly cylinder (6).

2. A closed structure of a pressure sensor according to claim 1, characterized in that: The inner wall of the assembly opening (4) is provided with a retaining ring (5), and the front end of the assembly cylinder (6) abuts against the surface of the retaining ring (5).

3. The closed structure of a pressure sensor according to claim 1, characterized in that: An inserting tube (7) is fixedly arranged at the front end of the assembly tube (6), and the outer diameter of the inserting tube (7) is smaller than the outer diameter of the assembly tube (6).

4. The closed structure of a pressure sensor according to claim 1, characterized in that: The surface of the inserting tube (7) is provided with locking holes (15) which are distributed opposite to each other.

5. The closed structure of a pressure sensor according to claim 1, characterized in that: The assembly cylinder (6), the inserting cylinder (7), the multi-faceted protrusion (8) and the clamping stopper (9) are of split design.

6. The closed structure of a pressure sensor according to claim 1, characterized in that: The inner wall of the clamping stopper (9) is provided with a plurality of groups of sealing filling grooves (14) distributed at intervals, and the surface of the sensor connecting part (2) is provided with a connecting socket (3).

7. The closed structure of a pressure sensor according to claim 1, characterized in that: An air outlet pipe (11) is inserted into the cavity of the assembly tube (6), a reinforcement portion (12) is fixedly provided on the outer wall of the air outlet pipe (11), and a sealing gasket ring portion (13) is fixedly provided on the surface of the reinforcement portion (12).

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