CN216747649U - High and low pressure carbon dioxide concentration sensor - Google Patents

Abstract

The utility model relates to a high and low pressure carbon dioxide concentration sensor, which is used for detecting the carbon dioxide concentration in a sealed container. The high and low pressure carbon dioxide concentration sensor comprises an outer shell, a first sealing component connected with the outer shell, a detection component connected with the outer shell, and a detection component connected with the outer shell. The second sealing assembly is provided with an inner cavity, an opening communicating with the inner cavity and a sensing hole, the first sealing assembly includes a lens, a first sealing member and a first sealing cover, the detection assembly is arranged in the inner cavity, and the second sealing assembly It includes a second sealing member, a blocking member and a second sealing cover. The high and low pressure carbon dioxide concentration sensor of the present invention seals the gap between the lens and the casing through the first sealing member, and seals the gap between the blocking member and the casing through the second sealing member, so that the high and low pressure carbon dioxide concentration sensor is in a sealed state. It is beneficial to increase the detection accuracy of the high and low pressure carbon dioxide concentration sensor in the high pressure or low pressure environment.

Description

High and 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 and low pressure carbon dioxide concentration sensor.

Background technique

With the development of carbon dioxide concentration monitoring technology, carbon dioxide concentration sensors have appeared. In traditional technology, carbon dioxide concentration sensors can only be used under normal pressure. In a sealed container, a high pressure or low pressure environment is created in the sealed container for the carbon dioxide concentration sensor test. However, the current carbon dioxide concentration sensor is easily affected by high pressure or low pressure environment in the sealed container due to insufficient sealing, so that the gas will leak into the carbon dioxide concentration sensor, thereby affecting the pressure stability in the sealed container. The problem of low detection accuracy in high or low pressure environments.

Utility model content

Based on this, it is necessary to provide a high and low pressure carbon dioxide concentration sensor for the problem of low detection accuracy of the carbon dioxide concentration sensor in a high pressure or low pressure environment.

A high and low pressure carbon dioxide concentration sensor for detecting carbon dioxide concentration in a sealed container, the high and low pressure carbon dioxide concentration sensor comprising a casing, a first sealing component connected with the casing, a detection component connected with the casing, and a second seal connected with the casing an assembly, the casing is provided with an inner cavity and an opening communicating with the inner cavity and an induction hole, the opening is arranged at one end of the outer casing, the induction hole is arranged at the side wall of the outer casing, the first sealing component includes a lens, a first sealing member and a first sealing cover, The lens is in contact with one end of the housing, the first sealing member is arranged between the lens and the housing, the first sealing cover is in contact with the end of the lens away from the housing, and the first sealing cover is screwed with one end of the housing, and the detection component is arranged inside. In the cavity, the second sealing component includes a second sealing member, a blocking member and a second sealing cover, the second sealing member is in contact with one side of the casing, the blocking member is abutting with the second sealing member, and the second sealing cover is in contact with the blocking member The side facing away from the second sealing element is in contact, and the second sealing cover is screwed to one side of the housing.

The above-mentioned high and low pressure carbon dioxide concentration sensor abuts the lens through the first sealing cover, so that the lens and the housing jointly press the first sealing member, thereby sealing the gap between the lens and the housing through the first sealing member, and abutting the second sealing cover. The blocking member makes the blocking member and the casing co-extrude the second sealing member, so that the gap between the blocking member and the casing is sealed through the second sealing member, so that the high and low pressure carbon dioxide concentration sensor is in a sealed state to prevent the gas from leaking to the high and low pressure carbon dioxide. In the concentration sensor, the pressure stability in the sealed container is improved, which is beneficial to increase the detection accuracy of the high and low pressure carbon dioxide concentration sensor in a high pressure or low pressure environment.

In one embodiment, the housing is provided with an abutment groove communicating with the opening and an annular groove communicating with the abutment groove, the lens is abutted with the bottom of the abutment groove, and the first sealing cover is threadedly connected to the sidewall of the abutment groove , the first seal is arranged in the annular groove.

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

In one embodiment, the lens includes a limit portion and a stop portion, the limit portion is connected to a side wall of the stop portion, the stop portion abuts against the bottom of the abutment groove, and the housing is provided with a corresponding stop portion. The limit groove is communicated with the abutment groove.

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

In one embodiment, the limiting portion has a guide surface, the guide surface is provided at an end of the limiting portion close to the first sealing member, and the cross section of the guiding surface gradually increases from the end away from the first sealing member to the end close to the first sealing member shrink.

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 the diameter of the opening.

In one of the embodiments, the end of the first sealing cover away from the first sealing member is provided with an actuating groove.

In one embodiment, the housing is provided with an installation groove communicating with the sensing hole, and the blocking member and the second sealing member are both disposed in the installation groove.

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

Description of drawings

1 is a schematic structural diagram of a high and low pressure carbon dioxide concentration sensor according to an embodiment of the present utility model;

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

The meanings of the symbols in the attached drawings are:

High and low pressure carbon dioxide concentration sensor 100, housing 10, inner cavity 11, opening 12, sensing hole 13, abutment groove 14, annular groove 15, limit groove 16, installation groove 17, first sealing component 20, lens 21, limit part 211, stop part 212, guide surface 213, first sealing member 22, first sealing cover 23, through hole 231, actuating groove 232, detection component 30, second sealing component 40, second sealing member 41, blocking 42 , the second sealing cover 43 , and the anti-skid groove 431 .

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not subject to the specific embodiments disclosed below. limit.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

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

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction between the two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may be in direct contact with the first and second features, or the first and second features through an intermediary indirect contact. Also, the first feature being "above", "over" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or an intervening element 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 similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Please refer to FIG. 1 and FIG. 2 , it is a high and low pressure carbon dioxide concentration sensor 100 according to an embodiment of the utility model, which is used for detecting carbon dioxide concentration in a sealed container. The high and low pressure carbon dioxide concentration sensor 100 includes a housing 10 and a first The sealing component 20 , the detection component 30 connected with the housing 10 , and the second sealing component 40 connected with the housing 10 .

Please refer to FIG. 2 again, the housing 10 is provided with an inner cavity 11 , an opening 12 and a sensing hole 13 communicating with the inner cavity 11 . The opening 12 is provided at one end of the casing 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 a circular shape with a rectangular cross-section. The housing 10 is further provided with a limiting groove 16 that communicates with the abutting groove 14 . The sensing hole 13 is provided on the side wall of the housing 10 , and the housing 10 is provided with a mounting slot 17 communicating with the sensing hole 13 .

Referring to FIG. 2 again, the first sealing component 20 includes a lens 21 , a first sealing member 22 and a first sealing cover 23 . The lens 21 is in contact with one end of the housing 10 . Specifically, the lens 21 abuts the bottom of the abutment groove 14 . Further, the lens 21 includes a limit portion 211 and a stop portion 212 , the limit portion 211 is connected to the side wall of the stop portion 212 , and the limit portion 211 is installed in the limit slot 16 . Installing the limiting portion 211 in the limiting groove 16 is beneficial for restricting the rotation of the lens 21 and improving the sealing stability. It can be understood that the number of the limiting portions 211 is at least two, and the at least two limiting portions 211 are disposed around the side walls of the blocking portion 212 . The at least two limiting portions 211 are beneficial to further restrict the rotation of the lens 21 by the limiting portions 211 , which is beneficial to further improve the sealing stability. The limiting portion 211 has a guide surface 213 , the guide surface 213 is provided at one end of the limiting portion 211 close to the first sealing member 22 , and the cross-section of the guiding surface 213 goes from the end away from the first sealing member 22 to the end close to the first sealing member 22 . gradually shrink. The guide surface 213 facilitates the installation of the limiting portion 211 into the limiting groove 16 , thereby improving the convenience of installation. The stopper portion 212 is in contact with the bottom of the abutment groove 14 , and the stopper portion 212 is installed in the abutment groove 14 .

The first sealing member 22 is disposed between the lens 21 and the housing 10 . The material of the first sealing member 22 is rubber, and the first sealing member 22 is a circle with a circular cross-section. Specifically, the first sealing member 22 is arranged in the annular groove 15, and the volume of the first sealing member 22 is larger than that of the annular groove. 15 volumes. After the first sealing member 22 is squeezed to fill the annular groove 15 , it is advantageous for the first sealing cover 23 to be squeezed. The first sealing cover 23 is in contact with one end of the lens 21 facing away from the housing 10 , and the first sealing cover 23 is screwed to one end of the housing 10 . Specifically, the first sealing cover 23 is screwed to 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 the diameter of the opening 12 . One 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 control the rotation of the first sealing cover 23 and improve the installation convenience of the first sealing cover 23 .

The detection component 30 is arranged in the inner cavity 11 .

Referring to FIG. 2 again, the second sealing component 40 includes a second sealing member 41 , a blocking member 42 and a second sealing cover 43 . The second seal 41 is in contact with one side of the housing 10 . The blocking member 42 is in contact with the second sealing member 41 . The blocking member 42 and the second sealing member 41 are both disposed in the installation 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 one side of the housing 10 . Further, the outer side wall of the second sealing cover 43 is provided with an anti-skid groove 431 . The anti-skid grooves 431 are beneficial to increase the friction force with the side wall of the second sealing cover 43 , improve the convenience and the connection strength of the second sealing cover 43 when the second sealing cover 43 is rotated by pressing the outer side wall of the second sealing cover 43 .

The high and low pressure carbon dioxide concentration sensor 100 of the present invention abuts the lens 21 through the first sealing cover 23 , so that the lens 21 and the housing 10 co-press the first sealing member 22 , thereby sealing the lens 21 and the housing 10 through the first sealing member 22 In the gap between the two, the second sealing cover 43 abuts against the blocking member 42, so that the blocking member 42 and the casing 10 co-press the second sealing member 41, so as to seal the gap between the blocking member 42 and the casing 10 through the second sealing member 41. The gap makes the high and low pressure carbon dioxide concentration sensor 100 in a sealed state, preventing gas from leaking into the high and low pressure carbon dioxide concentration sensor 100, improving the pressure stability in the sealed container, and increasing the detection of the high and low pressure carbon dioxide concentration sensor 100 in a high pressure or low pressure environment. precision.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (10)

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.

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