Detachable ceramic pressure sensor

Abstract

The utility model relates to the related technical field of ceramic pressure sensors, in particular to a detachable ceramic pressure sensor which comprises a pressure sensor, a connecting column is connected to one side surface of the pressure sensor in a penetrating mode, a shell is installed on the outer side surface of the pressure sensor, and a detaching mechanism is arranged on the outer side surface of the shell. And a sealing mechanism is arranged on the surface of the inner side of the shell. When the pressure sensor needs to be installed in the shell, the pressure sensor slides into a sliding groove through a limiting block and a first limiting column, then the pressure sensor is rotated, the limiting block is clamped into a limiting groove, the pressure sensor is jacked up through the arrangement of a spring, and the pressure sensor is installed in the shell. The first limiting column and the second limiting column are installed together by the spring through the limiting hole, so that the spring is limited by the first limiting column and the second limiting column.

Description

Technical Field

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

[0002] Ceramic pressure sensors do not transfer liquid. Pressure acts directly on the front surface of the ceramic diaphragm, causing the diaphragm to deform slightly. Thick film resistors are printed on the back of the ceramic diaphragm and connected to form a Wheatstone bridge. Due to the piezoresistive effect of the varistor, the bridge generates a highly linear voltage signal that is proportional to the pressure and proportional to the excitation voltage. The ceramic pressure sensor is mainly composed of three parts: a ceramic ring, a ceramic diaphragm and a ceramic cover. In order to more conveniently inspect and maintain the interior of the ceramic pressure sensor, a detachable ceramic pressure sensor is particularly needed.

[0003] Because most of the existing ceramic pressure sensors do not have the function of being disassembled, it is inconvenient to inspect and maintain the ceramic pressure sensors during use, and they can only be replaced, which will cause a waste of resources. Utility Model Content

[0004] The purpose of the utility model is to provide a detachable ceramic pressure sensor to solve the problem raised in the above background technology that most of the existing ceramic pressure sensors are not disassembled, so when they are used, it is inconvenient to check and maintain the ceramic pressure sensors, and they can only be replaced, which will cause a waste of resources.

[0005] To achieve the above object, the utility model provides the following technical solution: a detachable ceramic pressure sensor, comprising a pressure sensor, a connecting column is connected through one side surface of the pressure sensor, a shell is installed on the outer side surface of the pressure sensor, a disassembly mechanism is provided on the outer side surface of the shell, and a sealing mechanism is provided on the inner side surface of the shell;

[0006] The disassembly mechanism includes a slide groove, a limit groove, a slider, a limit block, a first limit column, a spring, a second limit column and a limit hole. The inner surface of the shell is provided with a slide groove, the inner surface of the shell is provided with a limit groove, the outer surface of the pressure sensor is fixedly connected with a slider, and the outer surface of the pressure sensor is fixedly connected with a limit block.

[0007] Preferably, a first limiting column is fixedly connected to the inner surface of the pressure sensor, a spring is installed inside the first limiting column, a second limiting column is fixedly connected to one end surface of the spring, and a limiting hole is opened on one end surface of the second limiting column.

[0008] Preferably, the first limiting posts are distributed at equal intervals on the inner surface of the pressure sensor, and the second limiting posts are distributed at equal intervals on the inner surface of the housing.

[0009] Preferably, the first limiting column and the second limiting column form a telescopic structure through a spring, and the limiting grooves are arranged at equal intervals on the inner wall surface of the shell.

[0010] Preferably, the sliders are distributed at equal intervals on the outer surface of the pressure sensor, and the limit blocks are distributed at equal intervals on the outer surface of the pressure sensor and match the number and position of the sliders.

[0011] Preferably, the sealing mechanism includes a first mounting groove, a first sealing ring, a second mounting groove and a second sealing ring. The inner surface of the shell is provided with a first mounting groove, and the first sealing ring is installed inside the first mounting groove. The upper surface of the pressure sensor is provided with a second mounting groove, and the second sealing ring is installed inside the second mounting groove.

[0012] Preferably, the inner wall size of the first installation groove matches the outer wall size of the first sealing ring, and the material of the first sealing ring is rubber; the inner wall size of the second installation groove matches the outer wall size of the second sealing ring, and the material of the second sealing ring is rubber.

[0013] Compared with the prior art, the beneficial effects of the utility model are: this kind of detachable ceramic pressure sensor, through the setting of the slide groove, the limit groove, the slider, the limit block, the first limit column, the spring, the second limit column and the limit hole, when in use, when the pressure sensor needs to be installed inside the shell, first slide the pressure sensor to the inside of the slide groove through the limit block and the first limit column, and then rotate the pressure sensor so that the limit block is engaged with the inside of the limit groove, and through the setting of the spring, the pressure sensor is pushed upward, so that the pressure sensor is fixed inside the shell, and the spring installs the first limit column and the second limit column together through the limit hole, so that the first limit column and the second limit column limit the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the overall appearance of the utility model;

[0016] Figure 3 This is a schematic diagram of the disassembly mechanism structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the first installation groove and the first sealing ring used in conjunction with each other in the utility model;

[0018] Figure 5 For this utility model Figure 4 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. pressure sensor; 2. connecting column; 3. housing; 4. disassembly mechanism; 401. slide groove; 402. limit groove; 403. slider; 404. limit block; 405. first limit column; 406. spring; 407. second limit column; 408. limit hole; 5. sealing mechanism; 501. first mounting groove; 502. first sealing ring; 503. second mounting groove; 504. second sealing ring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-5 The utility model provides a technical solution: a detachable ceramic pressure sensor, comprising a pressure sensor 1, a connecting column 2 is connected through one side surface of the pressure sensor 1, a shell 3 is installed on the outer surface of the pressure sensor 1, a disassembly mechanism 4 is arranged on the outer surface of the shell 3, and a sealing mechanism 5 is arranged on the inner surface of the shell 3;

[0022] The disassembly mechanism 4 includes a slide groove 401, a limiting groove 402, a slider 403, a limiting block 404, a first limiting column 405, a spring 406, a second limiting column 407 and a limiting hole 408. The inner surface of the housing 3 is provided with a slide groove 401, the inner surface of the housing 3 is provided with a limiting groove 402, the outer surface of the pressure sensor 1 is fixedly connected with a slider 403, and the outer surface of the pressure sensor 1 is fixedly connected with a limiting block 404. Through the arrangement of the slide groove 401, the limiting groove 402, the slider 403, the limiting block 404, the first limiting column 405, the spring 406, the second limiting column 407 and the limiting hole 408, During use, when the pressure sensor 1 needs to be installed inside the housing 3, the pressure sensor 1 is first slid into the interior of the slide groove 401 through the limit block 404 and the first limit column 405, and then the pressure sensor 1 is rotated so that the limit block 404 is engaged with the interior of the limit groove 402. Through the setting of the spring 406, the pressure sensor 1 is pushed upward, so that the pressure sensor 1 is fixed inside the housing 3. The spring 406 installs the first limit column 405 and the second limit column 407 together through the limit hole 408, so that the first limit column 405 and the second limit column 407 limit the spring 406.

[0023] Furthermore, a first limiting column 405 is fixedly connected to the inner surface of the pressure sensor 1, a spring 406 is installed inside the first limiting column 405, a second limiting column 407 is fixedly connected to one end surface of the spring 406, and a limiting hole 408 is provided on one end surface of the second limiting column 407. Through the setting of the first limiting column 405, the spring 406 can be limited when it is deformed.

[0024] Furthermore, the first limiting posts 405 are evenly spaced on the inner surface of the pressure sensor 1, and the second limiting posts 407 are evenly spaced on the inner surface of the housing 3. The second limiting posts 407 are arranged so that the spring 406 can be limited when deformed.

[0025] Furthermore, the first limiting column 405 forms a telescopic structure with the second limiting column 407 through the spring 406, and the limiting grooves 402 are evenly spaced on the inner wall surface of the shell 3. Through the setting of the limiting grooves 402, the rotated pressure sensor 1 can be fixed in the current position through the limiting block 404.

[0026] Furthermore, the sliders 403 are evenly spaced on the outer surface of the pressure sensor 1, and the limit blocks 404 are evenly spaced on the outer surface of the pressure sensor 1 and match the number and position of the sliders 403. Through the setting of the limit blocks 404, the rotated pressure sensor 1 can be engaged with the inside of the limit blocks 404 through the limit grooves 402, thereby fixing it in the current position.

[0027] Furthermore, the sealing mechanism 5 includes a first mounting groove 501, a first sealing ring 502, a second mounting groove 503 and a second sealing ring 504. The inner surface of the housing 3 is provided with a first mounting groove 501, and the first sealing ring 502 is installed inside the first mounting groove 501. The upper surface of the pressure sensor 1 is provided with a second mounting groove 503, and the second sealing ring 504 is installed inside the second mounting groove 503. Through the arrangement of the first mounting groove 501, the first sealing ring 502, the second mounting groove 503 and the second sealing ring 504, when in use, when it is necessary to seal the pressure sensor 1, first, through the arrangement of the first sealing ring 502 inside the first mounting groove 501, the connection point between the pressure sensor 1 and the housing 3 can be sealed, and through the arrangement of the second sealing ring 504 inside the second mounting groove 503, the penetration point between the pressure sensor 1 and the connecting column 2 can be sealed.

[0028] Furthermore, the inner wall size of the first installation groove 501 is consistent with the outer wall size of the first sealing ring 502, and the material of the first sealing ring 502 is rubber material. The inner wall size of the second installation groove 503 is consistent with the outer wall size of the second sealing ring 504, and the material of the second sealing ring 504 is rubber material. Through the setting of the first sealing ring 502, the connection point between the pressure sensor 1 and the housing 3 can be sealed.

[0029] Working principle: When the pressure sensor 1 needs to be installed inside the housing 3, first slide the pressure sensor 1 into the inside of the slide groove 401 through the limit block 404 and the first limit column 405, and then rotate the pressure sensor 1 so that the limit block 404 is engaged with the inside of the limit groove 402. Through the setting of the spring 406, the pressure sensor 1 is pushed upward to fix the pressure sensor 1 inside the housing 3. The spring 406 installs the first limit column 405 and the second limit column 407 together through the limit hole 408, so that the first limit column 405 and the second limit column 407 limit the spring 406. When the pressure sensor 1 needs to be sealed, first, the first sealing ring 502 is set inside the first installation groove 501, so that the connection point between the pressure sensor 1 and the housing 3 can be sealed. Through the setting of the second sealing ring 504 inside the second installation groove 503, the penetration point between the pressure sensor 1 and the connecting column 2 can be sealed.

[0030] 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 detachable ceramic pressure sensor, comprising a pressure sensor (1), characterized in that: A connecting column (2) is connected through one side surface of the pressure sensor (1), a housing (3) is mounted on the outer side surface of the pressure sensor (1), a disassembly mechanism (4) is provided on the outer side surface of the housing (3), and a sealing mechanism (5) is provided on the inner side surface of the housing (3); The disassembly mechanism (4) comprises a slide groove (401), a limiting groove (402), a slider (403), a limiting block (404), a first limiting column (405), a spring (406), a second limiting column (407) and a limiting hole (408); the slide groove (401) is provided on the inner surface of the housing (3); the limiting groove (402) is provided on the inner surface of the housing (3); the slider (403) is fixedly connected to the outer surface of the pressure sensor (1); and the limiting block (404) is fixedly connected to the outer surface of the pressure sensor (1).

2. A detachable ceramic pressure sensor according to claim 1, characterized in that: A first limiting column (405) is fixedly connected to the inner surface of the pressure sensor (1), a spring (406) is installed inside the first limiting column (405), a second limiting column (407) is fixedly connected to one end surface of the spring (406), and a limiting hole (408) is provided on one end surface of the second limiting column (407).

3. The detachable ceramic pressure sensor according to claim 1, characterized in that: The first limiting posts (405) are distributed at equal intervals on the inner surface of the pressure sensor (1), and the second limiting posts (407) are distributed at equal intervals on the inner surface of the housing (3).

4. The detachable ceramic pressure sensor according to claim 1, characterized in that: The first limiting column (405) forms a telescopic structure with the second limiting column (407) via a spring (406), and the limiting grooves (402) are arranged at equal intervals on the inner wall surface of the outer shell (3).

5. The detachable ceramic pressure sensor according to claim 1, characterized in that: The sliders (403) are distributed at equal intervals on the outer surface of the pressure sensor (1), and the limit blocks (404) are distributed at equal intervals on the outer surface of the pressure sensor (1), and the number and position of the limit blocks match those of the sliders (403).

6. The detachable ceramic pressure sensor according to claim 1, characterized in that: The sealing mechanism (5) comprises a first mounting groove (501), a first sealing ring (502), a second mounting groove (503) and a second sealing ring (504); the inner surface of the housing (3) is provided with a first mounting groove (501), the interior of the first mounting groove (501) is provided with a first sealing ring (502); the upper surface of the pressure sensor (1) is provided with a second mounting groove (503), the interior of the second mounting groove (503) is provided with a second sealing ring (504).

7. The detachable ceramic pressure sensor according to claim 6, characterized in that: The inner wall size of the first installation groove (501) matches the outer wall size of the first sealing ring (502), and the material of the first sealing ring (502) is rubber. The inner wall size of the second installation groove (503) matches the outer wall size of the second sealing ring (504), and the material of the second sealing ring (504) is rubber.

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