Pressure sensor

Abstract

The utility model provides a pressure sensor. The pressure sensor comprises a sealing assembly, a main body assembly and a pressure sensor body. The sealing assembly comprises two first shells, a spring, a plate body and a sealing gasket; grooves are formed in one sides of the two first shells, through holes are formed in the grooves, one ends of the springs are fixedly connected to the interiors of the grooves, the other ends of the springs are fixedly connected to the bottom of a plate body, and the top of the plate body is installed at the bottom of a sealing gasket. The bottom of the first shell is fixedly connected to the top of the pressure sensor body; according to the utility model, the groove is formed in the first shell, and the spring, the plate body and the sealing gasket are arranged in the groove, so that when the pressure sensor is actually used, thrust of the spring enables the sealing gasket to play a better sealing role on a joint, water vapor is prevented from entering the pressure sensor body, the interior of the pressure sensor body is prevented from being corroded, and the service life of the pressure sensor body is prolonged. Therefore, the service life of the pressure sensor body is prolonged.

Description

Technical Field

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

[0002] With the development of intelligent manufacturing and industrial Internet of Things, sensors are being used more and more widely. The resistance strain pressure sensor is a pressure sensor that uses elastic sensitive elements and resistance strain gauges to convert the measured pressure into corresponding resistance value changes. According to the different structures of elastic sensitive elements, it can be divided into strain tube type, diaphragm type, strain beam type and combined type. It is widely used to measure the internal pressure of pipelines, the pressure of internal combustion engine gas, injection pressure, weighing and fluid pressure in various fields;

[0003] A Chinese public patent (publication number: CN219532350U) discloses a pressure sensor, including a pressure sensor body, a winding post and a threading groove, wherein a cavity is provided inside the pressure sensor body, a winding post is provided inside the cavity, the winding post is fixedly installed at one end inside the cavity, a wire entry hole is provided at the top of the winding post, a wire exit hole is provided at the bottom of the winding post, arc grooves are provided on the inner sides of the wire entry hole and the wire exit hole, the wire entry hole and the wire exit hole are connected to the inside of the cavity through the arc groove, and a plurality of threading grooves are provided in the middle of the winding post The threading groove is a through-type through-groove structure. Through the design of the winding column, the data cable can be wound around the winding column in a circuitous manner, thereby achieving the effect of stabilizing the data cable and avoiding the connection between the data cable and the pressure sensing probe from breaking due to the shaking or deviation of the data cable during long-term use, thereby affecting the service life of the pressure sensor; the sealing performance of this utility model is poor. When used outdoors, water vapor enters the pressure sensor body, causing corrosion and damage to the internal body of the sensor, resulting in a shortened service life of the sensor; for this reason, a pressure sensor is proposed. Utility Model Content

[0004] In view of this, the utility model provides a pressure sensor to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the utility model is implemented as follows: a pressure sensor comprises a sealing component, a main body component and a pressure sensor body;

[0006] The sealing assembly comprises two first shells, a spring, a plate body and a sealing gasket;

[0007] A groove is provided on one side of the two first shells, a through hole is provided inside the groove, one end of the spring is fixedly connected to the inside of the groove, the other end of the spring is fixedly connected to the bottom of the plate body, the top of the plate body is installed on the bottom of the sealing gasket, and the bottom of the first shell is fixedly connected to the top of the pressure sensor body.

[0008] Further preferably, the main body component includes a first connecting column, a winding column, a data cable, a pressure sensing probe and a second connecting column; one end of the first connecting column passes through the interior of the first shell, and one end of the first connecting column is fixedly connected to the top of the pressure sensor body.

[0009] Further preferably, one end of the winding post is fixedly connected to the inner bottom wall of the pressure sensor body, and the other end of the winding post is fixedly connected to the inner top wall of the pressure sensor body.

[0010] Further preferably, one end of the second connecting column passes through the interior of the first shell, and one end of the second connecting column is fixedly connected to the bottom of the pressure sensor body.

[0011] Further preferably, the outer wall of the data cable is wound around the outer wall of the winding column, one end of the data cable passes through the interior of the first connecting column, the other end of the data cable passes through the interior of the second connecting column, and the other end of the data cable is fixedly connected to the wiring terminal of the pressure sensing probe.

[0012] Further preferably, the outer side wall of the first connecting column is provided with a first thread groove, the outer side wall of the second connecting column is provided with a second thread groove, and one end of the pressure sensing probe is fixedly connected to the bottom of the second connecting column.

[0013] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0014] The utility model provides a groove in the first shell, and arranges a spring, a plate and a sealing gasket in the groove, so that when the utility model is actually used, the thrust of the spring enables the sealing gasket to better seal the connection, prevents water vapor from entering the pressure sensor body, avoids corrosion inside the pressure sensor body, and thus prolongs the service life of the pressure sensor body.

[0015] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is the internal structure diagram of the pressure sensor of the utility model;

[0019] Figure 3 This is a structural diagram of the sealing component of the utility model;

[0020] Figure 4 This is a supplementary structural diagram of the sealing component of the utility model.

[0021] Figure numerals: 101, sealing assembly; 10, first shell; 11, through hole; 12, groove; 13, spring; 14, plate; 15, sealing gasket; 201, main body assembly; 20, first connecting column; 21, first thread groove; 22, winding column; 23, data cable; 24, pressure sensing probe; 25, second connecting column; 26, second thread groove; 30, pressure sensor body. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, the embodiment of the utility model provides a pressure sensor, including a sealing component 101, a main body component 201 and a pressure sensor body 30;

[0025] The sealing assembly 101 includes two first housings 10, a spring 13, a plate 14 and a sealing gasket 15;

[0026] A groove 12 is provided on one side of the two first shells 10, and a through hole 11 is provided inside the groove 12. One end of the spring 13 is fixedly connected to the inside of the groove 12, and the other end of the spring 13 is fixedly connected to the bottom of the plate body 14. The top of the plate body 14 is installed on the bottom of the sealing gasket 15. The bottom of the first shell 10 is fixedly connected to the top of the pressure sensor body 30.

[0027] In one embodiment, the main body component 201 includes a first connecting column 20, a winding column 22, a data cable 23, a pressure sensing probe 24 and a second connecting column 25; one end of the first connecting column 20 passes through the interior of the first shell 10, and one end of the first connecting column 20 is fixedly connected to the top of the pressure sensor body 30. Through the setting of the pressure sensor body 30, the first shell 10 and the first connecting column 20 are fixed. Through the setting of the first shell 10, during installation, the reverse thrust of the spring 13 can enable the sealing gasket 15 to better seal the connection.

[0028] In one embodiment, one end of the winding post 22 is fixedly connected to the inner bottom wall of the pressure sensor body 30, and the other end of the winding post 22 is fixedly connected to the inner top wall of the pressure sensor body 30. The setting of the pressure sensor body 30 fixes the winding post 22. The setting of the winding post 22 can prevent the connection of the data cable 23 from breaking due to shaking during long-term use.

[0029] In one embodiment, one end of the second connecting column 25 passes through the interior of the first shell 10, and one end of the second connecting column 25 is fixedly connected to the bottom of the pressure sensor body 30. Through the setting of the pressure sensor body 30, the second connecting column 25 and the first shell 10 are fixed.

[0030] In one embodiment, the outer wall of the data cable 23 is wound around the outer wall of the winding post 22, one end of the data cable 23 passes through the interior of the first connecting post 20, the other end of the data cable 23 passes through the interior of the second connecting post 25, and the other end of the data cable 23 is fixedly connected to the terminal of the pressure sensing probe 24. The setting of the winding post 22 protects the data cable 23, and the setting of the first connecting post 20 and the second connecting post 25 fixes the data cable 23.

[0031] In one embodiment, a first thread groove 21 is formed on the outer wall of the first connecting column 20, a second thread groove 26 is formed on the outer wall of the second connecting column 25, and one end of the pressure sensing probe 24 is fixedly connected to the bottom of the second connecting column 25. The setting of the first connecting column 20 fixes the first thread groove 21, the setting of the second connecting column 25 fixes the second thread groove 26, and the setting of the second connecting column 25 fixes the pressure sensing probe 24.

[0032] When the utility model is working: a groove 12 is opened in the first shell 10, so that the spring 13 is installed in the groove 12, and a plate body 14 is installed at one end of the spring 13, and a sealing gasket 15 is installed on one side of the plate body 14. During installation, the reverse thrust of the spring 13 can push the plate body 14, so that the sealing gasket 15 can better fit the connection, thereby playing a better sealing role on the connection, preventing water vapor from entering the pressure sensor body 30, avoiding corrosion inside the pressure sensor body 30, and extending the service life of the pressure sensor body 30. One end of the data cable 23 is connected to the wiring terminal of the pressure sensing probe 24, and the data cable 23 is wound on the winding post 22. The other end of the data cable 23 passes through the interior of the first connecting post 20. By winding the data cable 23 on the winding post 22, the data cable 23 can be stabilized on the winding post 22 to avoid deviation or shaking, thereby avoiding the connection between the data cable 23 and the pressure sensing probe 24 from breaking.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A pressure sensor, characterized in that: It comprises a sealing component (101), a main body component (201) and a pressure sensor body (30); The sealing assembly (101) comprises two first housings (10), a spring (13), a plate (14) and a sealing gasket (15); A groove (12) is provided on one side of the two first shells (10), a through hole (11) is provided inside the groove (12), one end of the spring (13) is fixedly connected to the inside of the groove (12), the other end of the spring (13) is fixedly connected to the bottom of the plate body (14), the top of the plate body (14) is installed on the bottom of the sealing gasket (15), and the bottom of the first shell (10) is fixedly connected to the top of the pressure sensor body (30).

2. A pressure sensor according to claim 1, characterized in that: The main body component (201) comprises a first connecting column (20), a winding column (22), a data line (23), a pressure sensing probe (24) and a second connecting column (25); one end of the first connecting column (20) passes through the interior of the first shell (10), and one end of the first connecting column (20) is fixedly connected to the top of the pressure sensor body (30).

3. A pressure sensor according to claim 2, characterized in that: One end of the winding post (22) is fixedly connected to the inner bottom wall of the pressure sensor body (30), and the other end of the winding post (22) is fixedly connected to the inner top wall of the pressure sensor body (30).

4. A pressure sensor according to claim 2, characterized in that: One end of the second connecting column (25) passes through the interior of the first shell (10), and one end of the second connecting column (25) is fixedly connected to the bottom of the pressure sensor body (30).

5. A pressure sensor according to claim 4, characterized in that: The outer wall of the data line (23) is wound around the outer wall of the winding post (22), one end of the data line (23) passes through the interior of the first connecting post (20), the other end of the data line (23) passes through the interior of the second connecting post (25), and the other end of the data line (23) is fixedly connected to the connection terminal of the pressure sensing probe (24).

6. A pressure sensor according to claim 2, characterized in that: The outer wall of the first connecting column (20) is provided with a first thread groove (21), the outer wall of the second connecting column (25) is provided with a second thread groove (26), and one end of the pressure sensing probe (24) is fixedly connected to the bottom of the second connecting column (25).

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