CN216669070U

CN216669070U - Pressure sensor of high resistance to compression

Info

Publication number: CN216669070U
Application number: CN202122668948.2U
Authority: CN
Inventors: 兰灵才
Original assignee: Shaanxi Ruidaoweier Technology Co ltd
Current assignee: Shaanxi Ruidaoweier Technology Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-06-03
Anticipated expiration: 2031-11-03

Abstract

The utility model relates to the technical field of pressure sensors, in particular to a high-pressure-resistant pressure sensor, which comprises: the device comprises a base, wherein a protective plate is fixedly connected to the outer side of the upper end of the base, a movable cavity is arranged inside the upper end of the protective plate, and a pressure sensor is fixedly connected to the middle of the upper end of the base; the overload prevention piece is arranged in the movable cavity, and the bottom of the overload prevention piece is fixedly connected with the guard plate; the high compression resistant piece is sleeved at the upper end of the pressure sensor; the beneficial effects are that: through setting up the resistance to compression board for pressure sensor's measured face is direct not with the contact of measurand, avoids pressure too big to cause pressure sensor to scrap, and through setting up the change subassembly, can use the resistance to compression board to receive great wearing and tearing after for a long time, the resistance to compression board is changed.

Description

Pressure sensor of high resistance to compression

Technical Field

The utility model relates to the technical field of pressure sensors, in particular to a high-pressure-resistance pressure sensor.

Background

A pressure sensor is a device or apparatus that senses a pressure signal and converts the pressure signal into a usable output electrical signal according to a certain rule. A pressure sensor is usually composed of a pressure sensitive element and a signal processing unit. Pressure sensors can be classified into gauge pressure sensors, differential pressure sensors, and absolute pressure sensors according to different types of test pressures. The pressure sensor is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, and relates to a plurality of industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, military industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like.

When a pressure sensor in the prior art is used for testing, because the pressure generated by a tested object is not clear, the pressure is easily larger than the value measured by the pressure sensor, the pressure sensor is scrapped, and the pressure sensor is scrapped due to insufficient pressure resistance of the tested surface of the pressure sensor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a pressure sensor with high pressure resistance, which solves the above problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a highly pressure resistant pressure sensor, the highly pressure resistant pressure sensor comprising:

the device comprises a base, wherein a protective plate is fixedly connected to the outer side of the upper end of the base, a movable cavity is arranged inside the upper end of the protective plate, and a pressure sensor is fixedly connected to the middle of the upper end of the base;

the overload prevention piece is arranged in the movable cavity, and the bottom of the overload prevention piece is fixedly connected with the guard plate; and

and the high compression resistance part is sleeved at the upper end of the pressure sensor.

Preferably, the guard plate is of an annular cylinder structure, and six movable cavities are formed in the upper end of the guard plate in an annular equidistant mode.

Preferably, prevent that the overload part all includes electronic hydraulic stem, electronic hydraulic stem is located movable intracavity portion, and electronic hydraulic stem corresponds movable chamber and is provided with six, every electronic hydraulic stem bottom fixed connection backplate, the equal fixed connection roof in every electronic hydraulic stem upper end, the roof is located the backplate upper end, the roof sets up to annular cylinder structure.

Preferably, the high pressure resistant part comprises a pressure resistant plate, the pressure resistant plate is of a disc structure, and the outer side of the bottom of the pressure resistant plate is fixedly connected with a sleeve plate.

Preferably, the lagging sets up to annular cylinder structure, and the lagging is inside to be provided with the change subassembly, and the change subassembly is including removing the chamber, removes intracavity portion and is provided with the spring, spring outside fixed connection lagging, the inboard fixed connection push pedal of spring, the inboard fixed connection limiting plate of push pedal, and the limiting plate runs through the lagging and extends to the outside, and the inboard bottom of limiting plate sets up to the inclined plane.

Preferably, the pressure sensor upper end outside is provided with the spacing groove, and the spacing inslot side sets up to the arc, and the spacing groove is annular equidistance and is provided with four groups, and the replacement subassembly corresponds the spacing groove and is provided with four groups.

Preferably, the electro-hydraulic rod is electrically connected with the pressure sensor.

Compared with the prior art, the utility model has the beneficial effects that:

1. the pressure sensor is characterized in that the pressure sensor is provided with a pressure resisting plate, so that the measured surface of the pressure sensor is not directly contacted with a measured object, the pressure sensor is prevented from being scrapped due to overlarge pressure, and the pressure resisting plate can be replaced after being greatly abraded after being used for a long time through the arrangement of a replacing component;

2. through can be when pressure sensor survey pressure will surpass can bear pressure, start electronic hydraulic stem for electronic hydraulic stem promotes the roof and will be measured the object jack-up, avoids pressure sensor to scrap, reduces because of pressure is greater than the value that pressure sensor can record, causes pressure sensor to scrap.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic front cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic top view of the present invention.

In the figure: the device comprises a base 1, a guard plate 2, a movable cavity 3, an electric hydraulic rod 4, a top plate 5, a pressure sensor 6, a pressure-resistant plate 7, a sleeve plate 8, a movable cavity 9, a spring 10, a push plate 11, a limiting plate 12 and a limiting groove 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a highly pressure resistant pressure sensor, the highly pressure resistant pressure sensor comprising:

base

1, 1 upper end outside fixedly connected with backplate 2 of base, 2 upper ends inside of backplate is provided with movable chamber 3, backplate 2 sets up to annular cylinder structure, 2 upper ends inside of backplate is annular equidistance and is provided with six movable chambers 3, fixed connection pressure sensor 6 in the middle of 1 upper end of base, the 6 upper end outside of pressure sensor is provided with spacing groove 13, spacing groove 13 inboard sets up to the arc, spacing groove 13 is annular equidistance and is provided with four groups, the replacement subassembly corresponds spacing groove 13 and is provided with four groups.

Prevent the overload piece, locate activity chamber 3 insides, and bottom fixed connection backplate 2, the overload piece all includes electronic hydraulic stem 4, electronic hydraulic stem 4 and pressure sensor 6 electric connection, electronic hydraulic stem 4 is located activity chamber 3 insides, electronic hydraulic stem 4 corresponds activity chamber 3 and is provided with six, 4 bottom fixed connection backplate 2 of every electronic hydraulic stem, 4 upper ends of every electronic hydraulic stem equal fixed connection roof 5, roof 5 is located 2 upper ends of backplate, roof 5 sets up to the annular cylinder structure.

High resistance to compression spare, the cover is located pressure sensor 6 upper end, high resistance to compression spare includes resistance to compression board 7, resistance to compression board 7 sets up to the disc structure, 7 bottom outside fixedly connected with lagging 8 of resistance to compression board, lagging 8 sets up to the annular cylinder structure, the inside change subassembly that is provided with of lagging 8, it includes removal chamber 9 to change the subassembly, it is provided with spring 10 to remove the inside in chamber 9, spring 10 outside fixed connection lagging 8, the inboard fixed connection push pedal 11 of spring 10, the inboard fixed connection limiting plate 12 of push pedal 11, limiting plate 12 runs through lagging 8 and extends to the outside, the inboard bottom of limiting plate 12 sets up to the inclined plane.

The working principle is as follows: when the pressure sensor is used in practice, a tested object exerts pressure on the pressure resisting plate 7, the pressure resisting plate 7 transmits the pressure to the pressure sensor 6 for testing, when the pressure resisting plate 7 is worn and needs to be replaced, the pressure resisting plate 7 rotates clockwise, the pressure resisting plate 7 drives the limiting plate 12 in the replacement assembly to rotate, the limiting plate 12 pushes the limiting plate 12 into the moving cavity 9 through friction with the arc-shaped surface on the inner side of the limiting groove 13, so that the pressure resisting plate 7 can be taken out, then the bottom of a new pressure resisting plate 7 is aligned with the pressure sensor 6 and pressed down, the inclined surface on the bottom of the limiting plate 12 rubs with the top of the pressure sensor 6, so that the limiting plate 12 enters the moving cavity 9, and after the pressure resisting plate 7 completely covers the pressure sensor 6, the limiting plate 12 pushes the spring 10 to enter the limiting groove 13, so that replacement is completed;

during the test, when the pressure that surveys is about to exceed pressure sensor 6 and can bear pressure, start electronic hydraulic stem 4 for electronic hydraulic stem 4 promotes roof 5 and will be surveyed the object jack-up, avoids pressure sensor 6 to scrap.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pressure sensor of high pressure resistance characterized by: the high pressure resistant pressure sensor includes:

the device comprises a base (1), wherein a protective plate (2) is fixedly connected to the outer side of the upper end of the base (1), a movable cavity (3) is arranged inside the upper end of the protective plate (2), and a pressure sensor (6) is fixedly connected to the middle of the upper end of the base (1);

the overload prevention piece is arranged inside the movable cavity (3), and the bottom of the overload prevention piece is fixedly connected with the guard plate (2); and

the high compression resistance piece is sleeved at the upper end of the pressure sensor (6).

2. A high pressure resistant pressure sensor as in claim 1, wherein: the guard plate (2) is arranged to be of an annular cylinder structure, and six movable cavities (3) are arranged in the upper end of the guard plate (2) in an annular equidistant mode.

3. A high pressure resistant pressure sensor as in claim 1, wherein: prevent that overload piece all includes electronic hydraulic stem (4), and electronic hydraulic stem (4) are located movable chamber (3) inside, and electronic hydraulic stem (4) correspond movable chamber (3) and are provided with six, every electronic hydraulic stem (4) bottom fixed connection backplate (2), equal fixed connection roof (5) in every electronic hydraulic stem (4) upper end, and roof (5) are located backplate (2) upper end, and roof (5) set up to annular cylinder structure.

4. A high pressure resistant pressure sensor as in claim 1, wherein: the high pressure resistant part comprises a pressure resistant plate (7), the pressure resistant plate (7) is of a disc structure, and a sleeve plate (8) is fixedly connected to the outer side of the bottom of the pressure resistant plate (7).

5. The pressure sensor of claim 4, wherein: the improved structure is characterized in that the sleeve plate (8) is arranged to be of an annular cylinder structure, the sleeve plate (8) is internally provided with a replacing assembly, the replacing assembly comprises a moving cavity (9), a spring (10) is arranged inside the moving cavity (9), the spring (10) is fixedly connected with the sleeve plate (8) in the outer side, a spring (10) is fixedly connected with the push plate (11) in the inner side, the push plate (11) is fixedly connected with the limiting plate (12) in the inner side, the limiting plate (12) runs through the sleeve plate (8) and extends to the outer side, and the limiting plate (12) is arranged on the inner side bottom to be an inclined plane.

6. The pressure sensor of claim 5, wherein: pressure sensor (6) upper end outside is provided with spacing groove (13), and spacing groove (13) inboard sets up to the arc, and spacing groove (13) are annular equidistance and are provided with four groups, and the replacement subassembly corresponds spacing groove (13) and is provided with four groups.

7. A high pressure resistant pressure sensor as claimed in claim 3, wherein: the electric hydraulic rod (4) is electrically connected with the pressure sensor (6).