CN217211246U

CN217211246U - Pressure sensor

Info

Publication number: CN217211246U
Application number: CN202123106347.9U
Authority: CN
Inventors: 宾勇; 黄志忠; 廖思美
Original assignee: Foshan Shenghengtong Hydraulic Technology Co ltd
Current assignee: Foshan Shenghengtong Hydraulic Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-08-16
Anticipated expiration: 2031-12-10

Abstract

The utility model belongs to the technical field of the sensor, concretely relates to pressure sensor, including casing, sensor body and connection lid, the fixed surface of casing is connected with the boss, and the whole notch cuttype that is of boss, the circular slot has been seted up on the surface of boss, the round hole has been seted up to the inner wall of circular slot, the inner wall symmetry fixedly connected with cushion of circular slot, the first sealing ring of inner wall fixedly connected with of round hole. The utility model discloses a promote the sensor body and get into the casing, and rotate the sensor body, make to be in locking state between screw thread bush and the screw thread lantern ring, make the sensor body be in stably, under the effect of first sealing ring, second sealing ring, guarantee the leakproofness of sensor body installation, deformation effect through the spring can promote the kelly and carry out the chucking to the jack, make connecting cover area moving cable be in stable state, and under the effect of third sealing ring, guarantee cable erection's good leakproofness.

Description

Pressure sensor

Technical Field

The utility model relates to a sensor equipment technical field specifically is a pressure sensor.

Background

As is well known, a pressure sensor is the most commonly used sensor in industrial practice and widely used in various industrial automatic control environments, but many pressure sensors are stable in terms of large received impact pressure and short service life, and have a problem of poor sealing performance in mounting a sensor body and a cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure sensor has solved pressure sensor self end and has born the problem that impulse pressure is great, life is short, through the cooperation of the screw bush with the screw thread lantern ring, guarantees that the installation of sensor body is stable, through the effect of spring, kelly, card hole isotructure, is convenient for connect the installation of lid to under the effect of first sealing ring, second sealing ring, third sealing ring, guarantee the sealed effect of installation of sensor body, cable.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure sensor comprises a shell, a pressure sensor body and a connecting cover, wherein a boss is fixedly connected to the surface of the shell and is integrally stepped, a circular groove is formed in the surface of the boss, a round hole is formed in the inner wall of the circular groove, cushion blocks are symmetrically and fixedly connected to the inner wall of the circular groove, a first sealing ring is fixedly connected to the inner wall of the round hole, the first sealing ring is connected with the pressure sensor body in a sliding mode, a threaded lantern ring is fixedly mounted on the inner wall of the round hole, a second sealing ring is fixedly connected to the surface of the pressure sensor body, a mounting hole is formed in the shell, a cable is fixedly connected to the inner wall of the connecting cover, a third sealing ring is fixedly connected to the surface of the cable, clamping holes are symmetrically formed in the surface of the shell, through holes are symmetrically formed in the inner portion of the connecting cover, and a first retaining ring is fixedly connected to the inner wall of the through holes, the opening of the through hole is fixedly connected with a second retaining ring, and the second retaining ring is fixedly connected with the shell.

Preferably, the second sealing ring is in sliding connection with the circular groove, and the second sealing ring is in contact with the cushion block.

Preferably, a threaded bushing is fixedly connected to the surface of the pressure sensor body, and the threaded bushing and the threaded collar are in threaded connection.

Preferably, the third sealing ring is in sliding connection with the mounting hole, and the third sealing ring is in contact with the connecting cover.

Preferably, a clamping rod is connected between the second blocking ring and the first blocking ring in a sliding mode, and the clamping rod is connected with the clamping hole in a sliding mode.

Preferably, the fixed surface of kelly is connected with solid fixed ring, and contact between solid fixed ring and the first fender ring, the outside of kelly is provided with the spring, and the both ends of spring respectively with solid fixed ring, second fender between the ring fixed connection.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an it gets into the casing to cross promotion sensor body to rotate the sensor body, make and be in locking state between screw bush and the screw thread lantern ring, make the sensor body be in stably, under the effect of first sealing ring, second sealing ring, guarantee the leakproofness of sensor body installation.

2. The utility model discloses a deformation of spring is used, can promote the kelly and carry out the chucking to the draw-in hole for the connecting band moves the cable and is in stable state, and under the effect of third sealing ring, guarantees cable erection's good leakproofness.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the point A of FIG. 1 according to the present invention;

fig. 3 is an enlarged view of the point B of fig. 1 according to the present invention.

In the figure: 1. a housing; 2. a sensor body; 3. a connecting cover; 4. a boss; 5. a circular groove; 6. a circular hole; 7. a cushion block; 8. a first seal ring; 9. a threaded collar; 10. a second seal ring; 11. a threaded bushing; 12. mounting holes; 13. a cable; 14. a third seal ring; 15. a clamping hole; 16. a through hole; 17. a first retainer ring; 18. a second retainer ring; 19. a clamping rod; 20. a fixing ring; 21. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, a pressure sensor comprises a housing 1, a pressure sensor body 2 and a connecting cover 3, wherein a boss 4 is fixedly connected to the surface of the housing 1, the boss 4 is stepped, a circular groove 5 is formed on the surface of the boss 4, a circular hole 6 is formed in the inner wall of the circular groove 5, cushion blocks 7 are symmetrically and fixedly connected to the inner wall of the circular groove 5, a first sealing ring 8 is fixedly connected to the inner wall of the circular hole 6, the first sealing ring 8 is slidably connected with the pressure sensor body 2, a threaded collar 9 is fixedly installed on the inner wall of the circular hole 6, a second sealing ring 10 is fixedly connected to the surface of the pressure sensor body 2, a mounting hole 12 is formed in the housing 1, a cable 13 is fixedly connected to the inner wall of the connecting cover 3, a third sealing ring 14 is fixedly connected to the surface of the cable 13, clamping holes 15 are symmetrically formed in the surface of the housing 1, and through holes 16 are symmetrically formed in the connecting cover 3, the inner wall of the through hole 16 is fixedly connected with a first retaining ring 17, the opening of the through hole 16 is fixedly connected with a second retaining ring 18, and the second retaining ring 18 is fixedly connected with the shell 1.

Referring to fig. 1-2, the second sealing ring 10 is slidably connected to the circular groove 5, and the second sealing ring 10 contacts with the spacer 7, so that the impact resistance of the sensor body 2 and the sealing performance of the sensor body 2 can be improved under the action of the spacer 7 and the second sealing ring 10.

Referring to fig. 1-2, a threaded bushing 11 is fixedly connected to the surface of the pressure sensor body 2, and the threaded bushing 11 is in threaded connection with the threaded collar 9, so that the sensor body 2 is in a stable installation state in a threaded connection state of the threaded bushing 11 and the threaded collar 9.

Referring to fig. 1, the third sealing ring 14 is slidably connected to the mounting hole 12, and the third sealing ring 14 contacts with the connection cover 3, so as to ensure the sealing performance of the cable 13 under the action of the third sealing ring 14.

Referring to fig. 1 and 3, a clamping rod 19 is slidably connected between the second blocking ring 18 and the first blocking ring 17, and the clamping rod 19 is slidably connected with the clamping hole 15, so that the connecting cover 3 is stably connected under the matching action of the clamping rod 19 and the clamping hole 15.

Referring to fig. 1 and 3, a fixing ring 20 is fixedly connected to a surface of the locking rod 19, the fixing ring 20 contacts with the first retaining ring 17, a spring 21 is disposed outside the locking rod 19, and two ends of the spring 21 are fixedly connected to the fixing ring 20 and the second retaining ring 18 respectively, so that the locking rod 19 can tightly clamp and fix the locking hole 15 under the action of the spring 21.

The utility model discloses the concrete implementation process as follows: when the pressure sensor needs to be assembled, the sensor body 2 can be pushed into the shell 1 and can rotate, in the process, the sensor body 2 drives the second sealing ring 10 to rotate along the inner wall of the circular groove 5 and to contact with the cushion block 7, the sensor body 2 enters the first sealing ring 8, the sensor body 2 drives the threaded bushing 11 and the threaded lantern ring 9 to be locked in a threaded manner, the installation stability of the sensor body 2 is ensured, the good sealing performance of the sensor body 2 is ensured under the action of the first sealing ring 8 and the second sealing ring 10, the impact force of the sensor body 2 can be reduced under the action of the boss 4, the service life is prolonged, the clamping rod 19 can be pulled to move outwards, the clamping rod 19 drives the fixing ring 20 to separate from the first retaining ring 17 to move outwards, under the action of the second retaining ring 18, the spring 21 is stressed and compressed, then the connecting cover 3 is pushed to be in close contact with the bottom end face of the shell 1, the cable 13 enters the shell 1, the third sealing ring 14 is tightly attached to the mounting hole 12, external force is not applied to the clamping rod 19, the spring 21 recovers deformation, the clamping rod 19 is pushed to clamp and fix the clamping hole 15, and the stable installation of the connecting cover 3 is guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pressure sensor, includes casing (1), pressure sensor body (2) and connection lid (3), its characterized in that: the surface of the shell (1) is fixedly connected with a boss (4), the boss (4) is integrally stepped, a circular groove (5) is formed in the surface of the boss (4), a round hole (6) is formed in the inner wall of the circular groove (5), a cushion block (7) is symmetrically and fixedly connected with the inner wall of the circular groove (5), a first sealing ring (8) is fixedly connected with the inner wall of the round hole (6), the first sealing ring (8) is in sliding connection with the pressure sensor body (2), a threaded sleeve ring (9) is fixedly mounted on the inner wall of the round hole (6), a second sealing ring (10) is fixedly connected with the surface of the pressure sensor body (2), a mounting hole (12) is formed in the shell (1), a cable (13) is fixedly connected with the inner wall of the connecting cover (3), and a third sealing ring (14) is fixedly connected with the surface of the cable (13), card hole (15) have been seted up to the surface symmetry of casing (1), through-hole (16) have been seted up to the inside symmetry of connecting lid (3), the first fender ring (17) of inner wall fixedly connected with of through-hole (16), the opening part fixedly connected with second fender ring (18) of through-hole (16), and second fender ring (18) and casing (1) between fixed connection.

2. A pressure sensor as claimed in claim 1, wherein: the second sealing ring (10) is in sliding connection with the circular groove (5), and the second sealing ring (10) is in contact with the cushion block (7).

3. A pressure sensor as claimed in claim 1, wherein: the surface of the pressure sensor body (2) is fixedly connected with a threaded bushing (11), and the threaded bushing (11) is in threaded connection with the threaded sleeve ring (9).

4. A pressure sensor as claimed in claim 1, wherein: the third sealing ring (14) is in sliding connection with the mounting hole (12), and the third sealing ring (14) is in contact with the connecting cover (3).

5. A pressure sensor as claimed in claim 1, wherein: a clamping rod (19) is connected between the second blocking ring (18) and the first blocking ring (17) in a sliding mode, and the clamping rod (19) is connected with the clamping hole (15) in a sliding mode.

6. A pressure sensor as claimed in claim 5, wherein: the fixed surface of kelly (19) is connected with solid fixed ring (20), and contacts between solid fixed ring (20) and first fender ring (17), the outside of kelly (19) is provided with spring (21), and the both ends of spring (21) respectively with solid fixed ring (20), second fender ring (18) between fixed connection.