CN216747649U

CN216747649U - High-low pressure carbon dioxide concentration sensor

Info

Publication number: CN216747649U
Application number: CN202220106328.1U
Authority: CN
Inventors: 赵昌勤; 汪国富
Original assignee: Guangdong Hongkuo Test Equipment Co ltd
Current assignee: Guangdong Hongkuo Test Equipment Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-14
Anticipated expiration: 2032-01-14

Abstract

The utility model relates to a high-low pressure carbon dioxide concentration sensor which is used for detecting the concentration of carbon dioxide in a sealed container and comprises a shell, a first sealing component connected with the shell, a detection component connected with the shell and a second sealing component connected with the shell, wherein the shell is provided with an inner cavity, an opening communicated with the inner cavity and an induction hole, the first sealing component comprises a lens, a first sealing element and a first sealing cover, the detection component is arranged in the inner cavity, and the second sealing component comprises a second sealing element, a blocking element and a second sealing cover. According to the high-low pressure carbon dioxide concentration sensor, the gap between the lens and the shell is sealed through the first sealing element, and the gap between the barrier element and the shell is sealed through the second sealing element, so that the interior of the high-low pressure carbon dioxide concentration sensor is in a sealed state, and the detection precision of the high-low pressure carbon dioxide concentration sensor in a high-pressure or low-pressure environment is improved.

Description

High-low pressure carbon dioxide concentration sensor

Technical Field

The utility model relates to the technical field of carbon dioxide concentration sensors, in particular to a high-pressure and low-pressure carbon dioxide concentration sensor.

Background

With the development of a carbon dioxide concentration monitoring technology, a carbon dioxide concentration sensor appears, in the traditional technology, the carbon dioxide concentration sensor can be used only under normal pressure, if the carbon dioxide concentration under a high-pressure or low-pressure condition needs to be tested, the carbon dioxide concentration sensor needs to be fixed in a sealed container, and a high-pressure or low-pressure environment is generated in the sealed container to be used for testing the carbon dioxide concentration sensor. However, the existing carbon dioxide concentration sensor is susceptible to the influence of a high-pressure or low-pressure environment in a sealed container due to insufficient sealing performance, so that gas can leak into the carbon dioxide concentration sensor, the pressure stability in the sealed container is influenced, and the problem that the detection accuracy of the carbon dioxide concentration sensor is low in the high-pressure or low-pressure environment exists.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a high-and low-pressure carbon dioxide concentration sensor in order to solve the problem that the carbon dioxide concentration sensor has low detection accuracy in a high-pressure or low-pressure environment.

A high-low pressure carbon dioxide concentration sensor is used for detecting the concentration of carbon dioxide in a sealed container, and comprises a shell, a first sealing component connected with the shell, a detection component connected with the shell and a second sealing component connected with the shell, wherein the shell is provided with an inner cavity, an opening communicated with the inner cavity and a sensing hole, the opening is arranged at one end of the shell, the sensing hole is arranged at the side wall of the shell, the first sealing component comprises a lens, a first sealing element and a first sealing cover, the lens is abutted against one end of the shell, the first sealing element is arranged between the lens and the shell, the first sealing cover is abutted against one end of the lens, which is deviated from the shell, the first sealing cover is in threaded connection with one end of the shell, the detection component is arranged in the inner cavity, the second sealing component comprises a second sealing element, a blocking element and a second sealing cover, the second sealing element is abutted against one side of the shell, the separation piece and the butt of second sealing member, the sealed one side butt that deviates from the second sealing member of second and separation piece of second, and the sealed one side threaded connection of lid and shell of second.

Above-mentioned high low pressure carbon dioxide concentration sensor, through first sealed lid butt lens, make lens and the first sealing member of shell coextrusion, thereby through the clearance between first sealing member sealed lens and the shell, through the sealed butt baffler of second, make baffler and shell coextrusion second sealing member, thereby through the clearance between the sealed baffler of second sealing member and the shell, make and be in encapsulated situation in the high low pressure carbon dioxide concentration sensor, avoid gaseous can reveal to the high low pressure carbon dioxide concentration sensor in, promote the pressure stability in the sealed container, do benefit to and increase high low pressure carbon dioxide concentration sensor and detect the precision under high pressure or low pressure environment.

In one embodiment, the housing is provided with an abutting groove communicated with the opening and an annular groove communicated with the abutting groove, the lens abuts against the bottom of the abutting groove, the first sealing cover is in threaded connection with the side wall of the abutting groove, and the first sealing piece is arranged in the annular groove.

In one embodiment, the annular groove is circular with a rectangular cross section, the first sealing element is circular with a circular cross section, and the volume of the first sealing element is larger than that of the annular groove.

In one embodiment, the lens includes a limiting portion and a stopping portion, the limiting portion is connected to a sidewall of the stopping portion, the stopping portion abuts against a bottom of the abutting groove, the housing is provided with a limiting groove corresponding to the limiting portion, and the limiting groove is communicated with the abutting groove.

In one embodiment, the number of the limiting parts is at least two, the at least two limiting parts are arranged around the side wall of the stopping part, and the number of the limiting grooves is the same as that of the limiting parts.

In one embodiment, the limiting part is provided with a guide surface, the guide surface is arranged at one end of the limiting part close to the first sealing element, and the section of the guide surface gradually shrinks from one end far away from the first sealing element to one end close to the first sealing element.

In one embodiment, one end of the first sealing cover is provided with a through hole, and the diameter of the through hole is larger than that of the opening.

In one embodiment, an actuating groove is formed at one end of the first sealing cover away from the first sealing element.

In one embodiment, the housing is provided with a mounting groove communicated with the sensing hole, and the blocking piece and the second sealing piece are both arranged in the mounting groove.

In one embodiment, the outer side wall of the second sealing cover is provided with an anti-slip groove.

Drawings

FIG. 1 is a schematic diagram of a high and low pressure carbon dioxide sensor according to an embodiment of the present invention;

fig. 2 is an exploded view of the high and low pressure carbon dioxide concentration sensor of fig. 1.

The reference numbers in the drawings have the meanings given below:

the sensor comprises a high-pressure and low-pressure carbon dioxide concentration sensor 100, a shell 10, an inner cavity 11, an opening 12, a sensing hole 13, a butting groove 14, an annular groove 15, a limiting groove 16, a mounting groove 17, a first sealing component 20, a lens 21, a limiting part 211, a stopping part 212, a guide surface 213, a first sealing component 22, a first sealing cover 23, a through hole 231, an actuating groove 232, a detection component 30, a second sealing component 40, a second sealing component 41, a blocking part 42, a second sealing cover 43 and an anti-skid groove 431.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, a high-pressure and low-pressure carbon dioxide sensor 100 according to an embodiment of the present invention is used for detecting carbon dioxide concentration in a sealed container, and the high-pressure and low-pressure carbon dioxide sensor 100 includes a housing 10, a first sealing member 20 connected to the housing 10, a detecting member 30 connected to the housing 10, and a second sealing member 40 connected to the housing 10.

Referring to fig. 2 again, the housing 10 has an inner cavity 11, an opening 12 communicating with the inner cavity 11, and a sensing hole 13. An opening 12 is provided at one end of the housing 10. The housing 10 is further provided with an abutment groove 14 communicating with the opening 12 and an annular groove 15 communicating with the abutment groove 14. Specifically, the annular groove 15 is provided on the bottom surface of the abutting groove 14, and the annular groove 15 is circular with a rectangular cross section. The housing 10 is further provided with a retaining groove 16 communicating with the abutment groove 14. The induction hole 13 is arranged on the side wall of the shell 10, and the shell 10 is provided with a mounting groove 17 communicated with the induction hole 13.

Referring again to fig. 2, the first sealing assembly 20 includes a lens 21, a first sealing member 22 and a first sealing cover 23. The lens 21 abuts on one end of the housing 10. Specifically, the lens 21 abuts against the bottom of the abutting groove 14. Further, the lens 21 includes a limiting portion 211 and a stopping portion 212, the limiting portion 211 is connected to a sidewall of the stopping portion 212, and the limiting portion 211 is installed in the limiting groove 16. The limiting part 211 is arranged in the limiting groove 16, so that the rotation of the lens 21 is limited, and the sealing stability is improved. It can be understood that the number of the limiting portions 211 is at least two, and at least two limiting portions 211 are disposed around the sidewall of the stopping portion 212. The at least two limiting parts 211 are beneficial to further limiting the rotation of the lens 21 through the limiting parts 211, and are beneficial to further improving the sealing stability. The limiting portion 211 has a guide surface 213, the guide surface 213 is disposed at an end of the limiting portion 211 close to the first sealing member 22, and a cross section of the guide surface 213 gradually shrinks from an end far away from the first sealing member 22 to an end close to the first sealing member 22. The guide surface 213 facilitates the installation of the limiting portion 211 into the limiting groove 16, thereby improving the installation convenience. The stopping portion 212 abuts against the bottom of the abutting groove 14, and the stopping portion 212 is installed in the abutting groove 14.

The first sealing member 22 is disposed between the lens 21 and the housing 10. The first sealing member 22 is made of rubber, the first sealing member 22 is circular with a circular cross section, specifically, the first sealing member 22 is disposed in the annular groove 15, and the volume of the first sealing member 22 is larger than the volume of the annular groove 15. The first sealing member 22 facilitates the compression of the first sealing cover 23 after being compressed to fill the annular groove 15. The first sealing cover 23 abuts against one end of the lens 21 away from the housing 10, and the first sealing cover 23 is in threaded connection with one end of the housing 10. Specifically, the first seal cover 23 is screwed with the side wall of the abutting groove 14. One end of the first sealing cover 23 is provided with a through hole 231, and the diameter of the through hole 231 is larger than that of the opening 12. The end of the first sealing cover 23 away from the first sealing member 22 is provided with an actuating groove 232. The actuating groove 232 is beneficial to controlling the rotation of the first sealing cover 23, and the installation convenience of the first sealing cover 23 is improved.

The sensing assembly 30 is disposed within the interior cavity 11.

Referring to fig. 2 again, the second sealing assembly 40 includes a second sealing member 41, a blocking member 42 and a second sealing cover 43. The second seal 41 abuts against one side of the housing 10. The blocking member 42 abuts the second seal 41. The blocking member 42 and the second sealing member 41 are both disposed in the mounting groove 17. The second sealing cover 43 abuts against the side of the blocking member 42 facing away from the second sealing member 41, and the second sealing cover 43 is screwed to the side of the housing 10. Further, the outer sidewall of the second sealing cover 43 is provided with an anti-slip groove 431. The anti-slip groove 431 facilitates to increase the friction force with the sidewall of the second sealing cover 43, and to improve the convenience when the outer sidewall of the second sealing cover 43 is pressed to rotate the second sealing cover 43 and the connection strength of the second sealing cover 43.

According to the high-low pressure carbon dioxide concentration sensor 100, the first sealing cover 23 abuts against the lens 21, so that the lens 21 and the housing 10 jointly press the first sealing member 22, the gap between the lens 21 and the housing 10 is sealed through the first sealing member 22, the second sealing cover 43 abuts against the barrier member 42, the barrier member 42 and the housing 10 jointly press the second sealing member 41, the gap between the barrier member 42 and the housing 10 is sealed through the second sealing member 41, the high-low pressure carbon dioxide concentration sensor 100 is in a sealing state, gas is prevented from leaking into the high-low pressure carbon dioxide concentration sensor 100, the pressure stability in a sealed container is improved, and the detection accuracy of the high-low pressure carbon dioxide concentration sensor 100 in a high-pressure or low-pressure environment is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A high and low pressure carbon dioxide concentration sensor, comprising:

the induction heating device comprises a shell, a heating device and a heating device, wherein the shell is provided with an inner cavity, an opening communicated with the inner cavity and an induction hole, the opening is arranged at one end of the shell, and the induction hole is arranged on the side wall of the shell;

the first sealing assembly is connected with the shell and comprises a lens, a first sealing element and a first sealing cover, the lens is abutted against one end of the shell, the first sealing element is arranged between the lens and the shell, the first sealing cover is abutted against one end, away from the shell, of the lens, and the first sealing cover is in threaded connection with one end of the shell;

a detection assembly connected to the housing, the detection assembly disposed within the internal cavity; and

and the second sealing assembly comprises a second sealing element, a blocking piece and a second sealing cover, the second sealing element is abutted against one side of the shell, the blocking piece is abutted against the second sealing element, the second sealing cover is deviated from one side of the second sealing element by the blocking piece, and the second sealing cover is in threaded connection with one side of the shell.

2. The sensor according to claim 1, wherein the housing is provided with a contact groove communicating with the opening and an annular groove communicating with the contact groove, the lens is in contact with a bottom of the contact groove, the first seal cover is screwed to a side wall of the contact groove, and the first seal member is disposed in the annular groove.

3. The high and low pressure carbon dioxide concentration sensor according to claim 2, wherein the annular groove is circular with a rectangular cross section, the first seal member is circular with a circular cross section, and a volume of the first seal member is larger than a volume of the annular groove.

4. The sensor according to claim 2, wherein the lens includes a limiting portion and a stopping portion, the limiting portion is connected to a sidewall of the stopping portion, the stopping portion abuts against a bottom of the abutting groove, the housing is provided with a limiting groove corresponding to the limiting portion, and the limiting groove is communicated with the abutting groove.

5. The sensor according to claim 4, wherein the number of the limiting portions is at least two, at least two limiting portions are disposed around the side wall of the stopper portion, and the number of the limiting grooves is the same as the number of the limiting portions.

6. The sensor according to claim 4, wherein the limiting portion has a guide surface, the guide surface is disposed at an end of the limiting portion close to the first sealing member, and a cross section of the guide surface gradually shrinks from an end away from the first sealing member toward an end close to the first sealing member.

7. The sensor of claim 2, wherein the first sealing cover has a through hole at one end, and the diameter of the through hole is larger than that of the opening.

8. The sensor of claim 2, wherein an actuating groove is formed at an end of the first sealing cover away from the first sealing member.

9. The sensor according to claim 1, wherein the housing has a mounting groove communicating with the sensing hole, and the blocking member and the second sealing member are disposed in the mounting groove.

10. The sensor of claim 9, wherein the outer side wall of the second sealing cover is provided with an anti-slip groove.