Ceramic pressure sensor with anti-impact structure

Abstract

The utility model relates to the field of ceramic pressure sensors, in particular to a ceramic pressure sensor with an anti-impact structure, which comprises an outer ceramic shell seat, a main body for assembling the ceramic pressure sensor, and a positioning bolt penetrating through the upper part of the outer ceramic shell seat. The ceramic pressure sensor is provided with the outer anti-impact ring, the embedded groove, the inner positioning ring, the first torsion spring, the fixed anti-impact ring and the second abutting ring, when the ceramic pressure sensor is used, the inner positioning ring can be installed at the bottom of the ceramic pressure sensor body, and the whole ceramic pressure sensor body is fitted into the embedded groove. A first torsion spring is stretched to enable a fixed anti-impact ring to fix an inner positioning ring and a ceramic pressure sensor body above the inner positioning ring from a plurality of different directions, so that the first torsion spring drives the ceramic pressure sensor body to carry out left-right buffering when being subjected to external impact, and the impact force is reduced; and collision and friction of the ceramic pressure sensor body in the upper ceramic thread bushing are avoided.

Description

Technical Field

[0001] The utility model relates to the field of ceramic pressure sensors, and particularly relates to a ceramic pressure sensor with an anti-impact structure. Background Art

[0002] A ceramic pressure sensor is a common type of pressure sensor. It uses a ceramic material as a sensitive element and has advantages such as high precision, high sensitivity, corrosion resistance, and long service life. The working principle of a ceramic pressure sensor is mainly based on the piezoelectric effect or piezoresistive effect. When an external object applies pressure, the piezoelectric ceramic sensitive element inside the sensor will produce a small deformation, thereby causing a change in the potential difference. Then, through the internal circuit, these electrical signals are amplified and the corresponding pressure value is output.

[0003] After retrieval, a ceramic pressure sensor with quick encapsulation, with the publication number CN221055944U, specifically discloses a ceramic pressure sensor with quick encapsulation, including a ceramic pressure sensor main body. An installation ring is installed on the outer side of the outer ring surface of the ceramic pressure sensor main body. A plurality of installation grooves are spaced apart along the circumferential direction in the middle of the outer ring surface of the installation ring. Springs are fixed at the top and bottom of the inner surface of the installation ring located inside the installation grooves. A connection pad is fixed on the side surface of the connection plate away from the spring. A plurality of elastic blocks are spaced and fixed on the side surface of the connection pad away from the connection plate. During use, it can conveniently limit the position between the ceramic pressure sensor main body and the encapsulation box, which helps save manpower and material resources when encapsulating the ceramic pressure sensor main body, is convenient for improving the working efficiency of encapsulating the ceramic pressure sensor main body, and helps quickly encapsulate the ceramic pressure sensor main body.

[0004] During the use of the existing ceramic pressure sensors, due to the different installation environments of the ceramic pressure sensors, when the ceramic pressure sensors are subjected to external impact forces, if only relying on the outer shell of the ceramic pressure sensors themselves to withstand the impact forces, it will cause different degrees of damage to the internal components. Moreover, the ceramic pressure sensor in the above comparative case also lacks an anti-impact structure. In this way, when used in some specific environments, the impacted ceramic pressure sensors not only increase the overall failure probability but also increase the maintenance and installation costs.

[0005] Therefore, it is very necessary to invent a ceramic pressure sensor with an anti-impact structure to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a ceramic pressure sensor with an impact-resistant structure. The ceramic pressure sensor has an impact-resistant structure through an external impact-resistant ring, an internal groove, an internal positioning ring, a first torsion spring, a fixed impact-resistant ring and a second contact ring. The fixed impact-resistant ring and the second contact ring firmly clamp the ceramic pressure sensor body inside, and the first torsion spring and the second torsion spring relieve most of the impact force. In this way, when the ceramic pressure sensor is used in some specific environments, the overall failure probability of the ceramic pressure sensor is reduced, and the maintenance and installation costs are also reduced. This is to solve the problem in the prior art that when the ceramic pressure sensor is used, due to the different installation environments of the ceramic pressure sensor, when the ceramic pressure sensor is subjected to external impact force, if it only relies on the outer shell of the ceramic pressure sensor itself to resist the impact force, it will cause the internal components to suffer different degrees of loss. In the above-mentioned comparative case, the ceramic pressure sensor also lacks an impact-resistant structure. In this way, when used in some specific environments, the ceramic pressure sensor subjected to impact not only increases the overall failure probability, but also increases the maintenance and installation costs.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a ceramic pressure sensor with an impact-resistant structure, comprising an outer ceramic shell seat, a main body for assembling the ceramic pressure sensor;

[0008] A positioning bolt is passed through the top of the outer ceramic shell seat and is used to connect and install the outer anti-impact ring. A threaded pipe is fixedly installed on the top of the outer ceramic shell seat. The outer part of the threaded pipe is movably connected to an upper ceramic threaded sleeve. The inner part of the upper ceramic threaded sleeve is fixedly installed with a support column.

[0009] An inner groove is arranged inside the outer ceramic shell seat, and is used to assist in positioning the ceramic pressure sensor body. An inner positioning ring is arranged inside the inner groove, and the ceramic pressure sensor body is fixedly installed above the inner positioning ring. A first torsion spring is arranged outside the inner positioning ring, and a fixed anti-impact ring is fixedly installed at one end of the first torsion spring.

[0010] The first resistance ring is arranged inside the upper ceramic threaded sleeve and is used to buffer the ceramic pressure sensor body from above. A second torsion spring is fixedly installed at the bottom of the first resistance ring, and a second resistance ring is fixedly installed at one end of the second torsion spring. An external fixing bolt passes through the top of the upper ceramic threaded sleeve.

[0011] Preferably, a mounting block is fixedly mounted on the outside of the outer ceramic shell seat, and mounting bolts penetrate through the top of the mounting block.

[0012] Preferably, the outer anti-impact ring is threadedly connected to the outer ceramic shell seat, and the outer ceramic shell seat is movably connected to the upper ceramic threaded sleeve.

[0013] Preferably, the inner positioning ring is movably connected to the embedded groove, and the inner positioning ring is threadedly connected to the ceramic pressure sensor body.

[0014] Preferably, the number of the fixed anti-impact rings is set to be multiple, and the multiple fixed anti-impact rings are annularly and arrayedly distributed on the outer ceramic shell base.

[0015] Preferably, the second abutting ring is movably connected to the first abutting ring, and the second torsion springs are equidistantly distributed on the first abutting ring.

[0016] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0017] The present utility model is provided with an outer anti-impact ring, an embedded groove, an inner positioning ring, a first torsion spring, a fixed anti-impact ring and a second abutting ring. When using the ceramic pressure sensor, an inner positioning ring can be installed at the bottom of the ceramic pressure sensor body, and the entire ceramic pressure sensor body can be fitted into the embedded groove. Then, by stretching the first torsion spring, the fixed anti-impact ring fixes the inner positioning ring and the upper ceramic pressure sensor body from multiple different directions. In this way, when receiving an external impact, the first torsion spring drives the ceramic pressure sensor body to buffer left and right, reducing the impact force and preventing the ceramic pressure sensor body from colliding and rubbing inside the upper ceramic thread sleeve. Additionally, the first abutting ring, the second torsion spring and the second abutting ring inside the ceramic thread sleeve are used to position and buffer the ceramic pressure sensor body from above, enabling the ceramic pressure sensor to have an anti-impact structure. The fixed anti-impact ring and the second abutting ring firmly clamp the ceramic pressure sensor body inside, while the first torsion spring and the second torsion spring relieve most of the impact force. Thus, when using the ceramic pressure sensor in some specific environments, the overall failure probability of the ceramic pressure sensor is reduced, and the maintenance and installation costs are also reduced.

[0018] The present utility model is provided with an outer ceramic shell base, a positioning bolt, an outer anti-impact ring, a threaded tube, an upper ceramic thread sleeve and a support column. After installing the upper ceramic thread sleeve through the threaded tube, the positioning bolt can be twisted to install the outer anti-impact ring. The outer anti-impact ring strengthens the anti-impact ability of the outer shell of the ceramic pressure sensor itself outside the upper ceramic thread sleeve, reducing the impact on the internal components of the ceramic pressure sensor when being impacted. At the same time, the support column inside the upper ceramic thread sleeve during installation can also form a support structure outside the ceramic pressure sensor body, further providing a protective ability for the ceramic pressure sensor body. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 Schematic diagram of the external impact-resistant ring structure of the present utility model;

[0022] Figure 3 Schematic diagram of the upper ceramic threaded sleeve structure of the present utility model;

[0023] Figure 4 Schematic diagram of the fixed impact-resistant ring structure of the present utility model;

[0024] Figure 5 Schematic diagram of the second abutting ring structure of the present utility model.

[0025] Explanation of reference numerals:

[0026] 1. Outer ceramic housing base; 2. Mounting block; 3. Mounting bolt; 4. Positioning bolt; 5. External impact-resistant ring; 6. Threaded tube; 7. Upper ceramic threaded sleeve; 8. Support column; 9. Embedded groove; 10. Inner positioning ring; 11. Ceramic pressure sensor body; 12. First torsion spring; 13. Fixed impact-resistant ring; 14. First abutting ring; 15. Second torsion spring; 16. Second abutting ring; 17. External fixing bolt. Detailed implementation manners

[0027] To enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0028] The present utility model provides a ceramic pressure sensor with an impact-resistant structure as Figures 1-5 shown, including an outer ceramic housing base 1, which is the main body for assembling the ceramic pressure sensor;

[0029] A positioning bolt 4 penetrates through the upper part of the outer ceramic housing base 1 and is used to connect and install an external impact-resistant ring 5. And a threaded tube 6 is fixedly installed above the outer ceramic housing base 1. The outer part of the threaded tube 6 is movably connected with an upper ceramic threaded sleeve 7, and a support column 8 is fixedly installed inside the upper ceramic threaded sleeve 7;

[0030] The inner groove 9 is arranged inside the outer ceramic housing 1, and is used to assist in positioning the ceramic pressure sensor body 11. An inner positioning ring 10 is arranged inside the inner groove 9, and the ceramic pressure sensor body 11 is fixedly installed above the inner positioning ring 10. A first torsion spring 12 is arranged outside the inner positioning ring 10, and a fixed anti-impact ring 13 is fixedly installed at one end of the first torsion spring 12.

[0031] The first resistance ring 14 is arranged inside the upper ceramic threaded sleeve 7, and is used for buffering the ceramic pressure sensor body 11 from above, and a second torsion spring 15 is fixedly installed at the bottom of the first resistance ring 14, and a second resistance ring 16 is fixedly installed at one end of the second torsion spring 15, and an external fixing bolt 17 passes through the top of the upper ceramic threaded sleeve 7. The first resistance ring 14, the second torsion spring 15 and the second resistance ring 16 inside the upper ceramic threaded sleeve 7 position and buffer the ceramic pressure sensor body 11 from above, so that the ceramic pressure sensor has an impact-resistant structure.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a mounting block 2 is fixedly installed on the outside of the outer ceramic shell seat 1, and a mounting bolt 3 is penetrated on the top of the mounting block 2. The mounting block 2 and the mounting bolt 3 facilitate the rapid installation and use of the ceramic pressure sensor in different environments. The outer anti-impact ring 5 is threadedly connected to the outer ceramic shell seat 1, and the outer ceramic shell seat 1 is movably connected to the upper ceramic threaded sleeve 7. After the upper ceramic threaded sleeve 7 is installed through the threaded tube 6, the positioning bolt 4 is twisted to install the outer anti-impact ring 5. The outer anti-impact ring 5 strengthens the impact resistance of the outer shell of the ceramic pressure sensor itself on the outside of the upper ceramic threaded sleeve 7, and reduces the impact on the internal components of the ceramic pressure sensor when it is impacted. The inner positioning ring 10 is movably connected to the embedded groove 9, and the inner positioning ring 10 is threadedly connected to the ceramic pressure sensor body 11. The inner positioning ring 10 can be installed on the bottom of the ceramic pressure sensor body 11, and the entire ceramic pressure sensor body 11 is fit into the embedded groove 9, and then the fixed anti-impact ring 13 is fixed to the inner positioning ring 10 and the upper ceramic pressure sensor body 11 from multiple different directions by stretching the first torsion spring 12.

[0033] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the number of fixed anti-impact rings 13 is set to be multiple, and the multiple fixed anti-impact rings 13 are distributed in an annular array on the outer ceramic housing base 1. When the ceramic pressure sensor is subjected to an external impact, the fixed anti-impact rings 13 can drive the ceramic pressure sensor body 11 to buffer left and right by the first torsion spring 12, reducing the impact force and preventing the ceramic pressure sensor body 11 from colliding and rubbing inside the upper ceramic thread sleeve 7. The second contact ring 16 is movably connected to the first contact ring 14, and the second torsion springs 15 are evenly distributed on the first contact ring 14. The structures of the first contact ring 14 and the second contact ring 16 are simple and easy to operate. If a malfunction occurs, it is convenient for maintenance personnel to repair and replace them in a timely manner without delaying the normal use of the ceramic pressure sensor.

[0034] The working principle of this utility model: First, take out the ceramic pressure sensor. An inner positioning ring 10 can be installed at the bottom of the ceramic pressure sensor body 11, and the entire ceramic pressure sensor body 11 is fitted into the embedded groove 9 of the outer ceramic shell base 1. Then, by stretching the first torsion spring 12, the fixed anti-impact ring 13 fixes the inner positioning ring 10 and the upper ceramic pressure sensor body 11 from multiple different directions. In this way, when subjected to external impact, the first torsion spring 12 drives the ceramic pressure sensor body 11 to buffer left and right, reducing the impact force and preventing the ceramic pressure sensor body 11 from colliding and rubbing inside the upper ceramic threaded sleeve 7. Then, take out the upper ceramic threaded sleeve 7. The first contact ring 14, the second torsion spring 15, and the second contact ring 16 inside the upper ceramic threaded sleeve 7 position and buffer the ceramic pressure sensor body 11 from above. Then, tighten the upper ceramic threaded sleeve 7 through the threaded tube 6. When the upper ceramic threaded sleeve 7 is installed, the support columns 8 inside can also form a support structure outside the ceramic pressure sensor body 11, further providing protection for the ceramic pressure sensor body 11. Subsequently, after installing the upper ceramic threaded sleeve 7, twist the positioning bolt 4 to install the outer anti-impact ring 5. The outer anti-impact ring 5 strengthens the anti-impact ability of the outer shell of the ceramic pressure sensor itself outside the upper ceramic threaded sleeve 7, reducing the impact on the internal components of the ceramic pressure sensor when being impacted. After the entire ceramic pressure sensor is assembled in this way, the ceramic pressure sensor can be quickly installed and used in different environments through the mounting block 2 and the mounting bolt 3. If the ceramic pressure sensor is subjected to external impact during use, the outer anti-impact ring 5 and the upper ceramic threaded sleeve 7 can relieve part of the impact force. Then, for the internal anti-impact structure, the ceramic pressure sensor body 11 is firmly clamped inside by the fixed anti-impact ring 13 and the second contact ring 16, and the first torsion spring 12 and the second torsion spring 15 relieve most of the impact force. In this way, when using the ceramic pressure sensor in some specific environments, the overall failure probability of the ceramic pressure sensor is reduced, and the maintenance and installation costs are also reduced. Finally, after completing all the installation and use work of the ceramic pressure sensor according to the above operations, just perform daily maintenance on the device. In this way, the use process of the ceramic pressure sensor with an anti-impact structure is completed.

[0035] Only some exemplary embodiments of the present utility model have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A ceramic pressure sensor with an impact-resistant structure, characterized in that: include An outer ceramic shell base (1) is used for assembling the main body of the ceramic pressure sensor; A positioning bolt (4) passes through the top of the outer ceramic housing (1) and is used to connect and install the outer impact-resistant ring (5); a threaded tube (6) is fixedly installed on the top of the outer ceramic housing (1); an upper ceramic threaded sleeve (7) is movably connected to the outside of the threaded tube (6); and a support column (8) is fixedly installed inside the upper ceramic threaded sleeve (7); An inner groove (9) is arranged inside the outer ceramic housing (1) and is used to assist in positioning the ceramic pressure sensor body (11); an inner positioning ring (10) is arranged inside the inner groove (9); the ceramic pressure sensor body (11) is fixedly mounted above the inner positioning ring (10); a first torsion spring (12) is arranged outside the inner positioning ring (10); a fixed anti-impact ring (13) is fixedly mounted on one end of the first torsion spring (12); A first abutment ring (14) is arranged inside the upper ceramic threaded sleeve (7) and is used to buffer the ceramic pressure sensor body (11) from above, and a second torsion spring (15) is fixedly mounted on the bottom of the first abutment ring (14), and a second abutment ring (16) is fixedly mounted on one end of the second torsion spring (15), and an external fixing bolt (17) penetrates the upper side of the upper ceramic threaded sleeve (7).

2. The ceramic pressure sensor with an impact-resistant structure according to claim 1, characterized in that: A mounting block (2) is fixedly mounted on the outside of the outer ceramic housing seat (1), and a mounting bolt (3) penetrates the top of the mounting block (2).

3. The ceramic pressure sensor with an impact-resistant structure according to claim 1, characterized in that: The outer impact-resistant ring (5) is threadedly connected to the outer ceramic shell seat (1), and the outer ceramic shell seat (1) is movably connected to the upper ceramic threaded sleeve (7).

4. The ceramic pressure sensor with an impact-resistant structure according to claim 1, characterized in that: The inner positioning ring (10) is movably connected to the inner embedding groove (9), and the inner positioning ring (10) is threadedly connected to the ceramic pressure sensor body (11).

5. The ceramic pressure sensor with an impact-resistant structure according to claim 1, characterized in that: The number of the fixed anti-impact rings (13) is set to be multiple, and the multiple fixed anti-impact rings (13) are distributed in a ring array on the outer ceramic shell seat (1).

6. The ceramic pressure sensor with an impact-resistant structure according to claim 1, characterized in that: The second abutment ring (16) is movably connected to the first abutment ring (14), and the second torsion springs (15) are distributed at equal intervals on the first abutment ring (14).

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