CN218674045U

CN218674045U - Pressure sensor

Info

Publication number: CN218674045U
Application number: CN202223226485.5U
Authority: CN
Inventors: 夏丽青
Original assignee: Wenzhou Dengxu Electronic Technology Co ltd
Current assignee: Wenzhou Dengxu Electronic Technology Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-03-21
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a pressure sensor, belong to sensor technical field, the shape of base is the polygon, the fixed surface of base is connected with the inlet tube, the central point of inlet tube puts and is equipped with the water inlet, the one end intercommunication of water inlet has the connecting hole, another surface of base is equipped with the boss, the terminal surface fixedly connected with registration arm of boss, there is the end cover on the surface of boss through threaded connection, the one end of end cover is opened there is the intercommunicating pore, the inner wall contact of end cover is connected with pressure chip, this pressure sensor is through the end cover and the bullet pad that set up, can compress tightly pressure chip automatically when end cover and base fasten, and the bullet pad not only can seal pressure chip junction, can avoid pressure chip to receive excessive extrusion and impaired simultaneously, and first sealing and the second sealing through sealed pad setting, can be when end cover and base fasten, axial and radial double sealing can carry out, great improvement its sealed effect.

Description

Pressure sensor

Technical Field

The utility model relates to a sensor technical field, more specifically say, relate to pressure sensor.

Background

The pressure sensor is a device for measuring pressure, such as a pressure sensor disclosed in publication No. CN207335950U, but when the pressure sensor is assembled with a pressure chip, the pressure chip is connected with a base through a housing, and then the pressure chip is pressed by a pressing ring so as to be fixed, the pressing force of the pressing ring may cause the pressure chip to be excessively pressed and damaged, and the sealing ring provided can only perform radial sealing, so that the sealing effect is limited.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a pressure sensor, this pressure sensor is through the end cover and the bullet pad that set up, can compress tightly pressure chip automatically when end cover and base fastening, the bullet pad not only can seal pressure chip junction in addition, can avoid pressure chip to receive excessive extrusion and impaired simultaneously, and through the first sealing and the second sealing that sealed the pad set up, can be when end cover and base fastening, axial and radial double sealing can carry out, great improvement its sealed effect.

In order to solve the above problems, the utility model adopts the following technical proposal.

Pressure sensor, the on-line screen storage device comprises a base, the shape of base is the polygon, the fixed surface of base is connected with the inlet tube, the central point of inlet tube puts and is equipped with the water inlet, the one end intercommunication of water inlet has the connecting hole, another surface of base is equipped with the boss, the terminal surface fixedly connected with registration arm of boss, there is the end cover boss surface through threaded connection, the intercommunicating pore has been opened to the one end of end cover, the inner wall contact of end cover is connected with pressure chip, pressure chip's surface contact is connected with the bullet pad, the surface contact of end cover is connected with sealed the pad, sealed pad includes first sealing and second sealing, and this pressure sensor can compress tightly pressure chip automatically when end cover and base fastening through the end cover that sets up and bullet pad not only can seal pressure chip junction in addition, can avoid simultaneously that pressure chip receives excessive extrusion and impaired to first sealing and second sealing through sealed pad setting up can carry out axial and radial double sealing when end cover fastens with the base, have improved its sealed effect greatly.

Furthermore, contained angle between first sealing and the second sealing is ninety degrees, the side contact of first sealing is connected with first recess, the surface contact of second sealing is connected with the second recess, and first recess and second recess are convenient for sealed spacing of filling up, have guaranteed the sealing stability of sealed department.

Furthermore, the first sealing part and the second sealing part are both made of extrusion-resistant sealing rubber, one surface of the first sealing part is in contact extrusion with the inner wall of the side face of the end cover, and the surface of the second sealing part is in contact extrusion with the end face of the end cover.

Furthermore, the shape of bullet pad is the ring shape, the surface of bullet pad is connected with the terminal surface contact of boss, the bullet pad adopts bullet extrusion elasticity sealing rubber to make.

Furthermore, the side fixedly connected with antislip strip of end cover, the antislip strip uses the centre of a circle of intercommunicating pore to be annular equidistance distribution as the center, and the antislip strip has the effect of preventing skidding.

Furthermore, the surface of the water inlet pipe is provided with external threads, the surface of the water inlet pipe is fixedly sleeved with a limiting ring, and the limiting ring can limit the connecting position of the water inlet pipe and the pipeline.

Compared with the prior art, the utility model has the advantages of:

(1) This scheme can compress tightly pressure chip automatically when end cover and base fastening through the end cover that sets up with playing the pad, plays the pad moreover and not only can seal pressure chip junction, can avoid pressure chip to receive excessive extrusion and impaired simultaneously.

(2) This scheme can carry out axial and radial double seal through sealed first sealing and the second sealing that fills up the setting, when end cover and base fastening, great improvement its sealed effect.

Drawings

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

FIG. 2 is a top view of the base and boss structure of the present invention;

fig. 3 is a top view of the sealing gasket structure of the present invention.

The reference numbers in the figures illustrate:

the device comprises a base 1, a water inlet pipe 11, a water inlet 12, a limiting ring 13, a connecting hole 14, a through hole 15, a boss 16, a positioning pipe 17, a first groove 18, a second groove 19, an end cover 2, an anti-slip strip 21, a communicating hole 22, a pressure chip 3, a spring pad 4, a sealing pad 5, a first sealing part 51 and a second sealing part 52.

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 work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, a pressure sensor includes a base 1, the base 1 is polygonal, a water inlet pipe 11 is fixedly connected to a surface of the base 1, a water inlet 12 is disposed at a center of the water inlet pipe 11, one end of the water inlet 12 is communicated with a connecting hole 14, a boss 16 is disposed on the other surface of the base 1, an external thread is disposed on a surface of the boss 16, a groove is disposed inside the end cover 2, an internal thread matched with the external thread of the boss 16 is disposed on an inner wall of the groove, the end cover 2 is conveniently assembled and disassembled with the base 1, a positioning pipe 17 is fixedly connected to an end surface of the boss 16, the end cover 2 is connected to a surface of the boss 16 through a thread, a communication hole 22 is opened at one end of the end cover 2, the pressure chip 3 is connected to an inner wall of the end cover 2 in a contact manner, the pressure chip 3 belongs to the prior art, a composition structure and a working principle thereof are well known to those skilled in the art, a spring pad 4 is connected to a surface of the pressure chip 3, the spring pad 4 can seal a joint of the pressure chip 3, a seal pad 5 is connected to a surface of the end cover 2 in a seal pad, and the seal pad 5 includes a first seal portion 51 and a second seal portion 52.

The shape of bullet pad 4 is ring shape, the surface of bullet pad 4 is connected with the terminal surface contact of boss 16, bullet pad 4 adopts bullet extrusion elastic sealing rubber to make, the side fixedly connected with antislip strip 21 of end cover 2, antislip strip 21 uses the centre of a circle of intercommunicating pore 22 to be annular equidistance and distributes as the center, antislip strip 21 has the effect that prevents to skid, the surface of inlet tube 11 is equipped with the external screw thread, the fixed cover in surface of inlet tube 11 has connect spacing ring 13, spacing ring 13 can restrict the hookup location of inlet tube 11 and pipeline.

In this embodiment, through the end cover 2 and the bullet pad 4 that set up, can compress tightly pressure chip 3 automatically when end cover 2 fastens with base 1, bullet pad 4 not only can seal 3 junctions of pressure chip moreover, can avoid pressure chip 3 to receive excessive extrusion and impaired simultaneously.

Example 2

The contained angle between first sealing 51 and the second sealing 52 is ninety degrees, the side contact of first sealing 51 is connected with first recess 18, the surface contact of second sealing 52 is connected with second recess 19, first recess 18 and second recess 19 are convenient for sealed spacing of 5 of filling up, the sealing stability of sealed department has been guaranteed, first sealing 51 and second sealing 52 all adopt resistant extrusion sealing rubber to make, a surface of first sealing 51 and the side inner wall contact extrusion of end cover 2, the surface of second sealing 52 and the end face contact extrusion of end cover 2.

In this embodiment, the first sealing portion 51 and the second sealing portion 52 provided by the sealing gasket 5 can perform axial and radial dual sealing when the end cover 2 is fastened with the base 1, thereby greatly improving the sealing effect.

When the pressure sensor is assembled, the pressure chip 3 is sleeved at the upper end of the boss 16, then the end cover 2 is connected with the base 1 downwards and is screwed down through clockwise rotation, at the moment, the end cover 2 presses the pressure chip 3 downwards, the pressure chip 3 presses the elastic pad 4 downwards, the pressure chip 3 is positioned and sealed through the elastic force of the elastic pad 4, meanwhile, when the end cover 2 is screwed down with the base 1 clockwise, the end cover 2 presses the sealing pad 5, so that the joint of the end cover 2 and the base 1 is sealed, through the arranged end cover 2 and the elastic pad 4, the pressure chip 3 can be automatically pressed when the end cover 2 is fastened with the base 1, the elastic pad 4 can seal the joint of the pressure chip 3, meanwhile, the pressure chip 3 can be prevented from being damaged due to excessive pressing, and the first sealing part 51 and the second sealing part 52 which are arranged through the sealing pad 5 can be used for carrying out axial and radial double sealing when the end cover 2 is fastened with the base 1, so that the sealing effect is greatly improved.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. Pressure sensor, including base (1), its characterized in that: the shape of base (1) is the polygon, the fixed surface of base (1) is connected with inlet tube (11), the central point of inlet tube (11) puts and is equipped with water inlet (12), the one end intercommunication of water inlet (12) has connecting hole (14), another surface of base (1) is equipped with boss (16), the terminal surface fixedly connected with registration arm (17) of boss (16), there is end cover (2) on the surface of boss (16) through threaded connection, the one end of end cover (2) is opened there is intercommunicating pore (22), the inner wall contact of end cover (2) is connected with pressure chip (3), the surface contact of pressure chip (3) is connected with bullet pad (4), the surface contact of end cover (2) is connected with sealed pad (5), sealed pad (5) are including first sealing (51) and second sealing (52).

2. The pressure sensor of claim 1, wherein: the included angle between the first sealing portion (51) and the second sealing portion (52) is ninety degrees, a first groove (18) is connected to the side face of the first sealing portion (51) in a contact mode, and a second groove (19) is connected to the surface of the second sealing portion (52) in a contact mode.

3. The pressure sensor of claim 1, wherein: the first sealing part (51) and the second sealing part (52) are both made of extrusion-resistant sealing rubber, one surface of the first sealing part (51) is in contact extrusion with the inner wall of the side face of the end cover (2), and the surface of the second sealing part (52) is in contact extrusion with the end face of the end cover (2).

4. The pressure sensor of claim 1, wherein: the shape of bullet pad (4) is the ring shape, the surface of bullet pad (4) is connected with the terminal surface contact of boss (16), bullet pad (4) adopt bullet extrusion elasticity sealing rubber to make.

5. The pressure sensor of claim 1, wherein: the side face of the end cover (2) is fixedly connected with anti-slip strips (21), and the anti-slip strips (21) are distributed in an annular shape at equal intervals by taking the circle center of the communicating hole (22) as the center.

6. The pressure sensor of claim 1, wherein: the surface of inlet tube (11) is equipped with the external screw thread, the fixed surface of inlet tube (11) has cup jointed spacing ring (13).