CN216847712U

CN216847712U - Sensor assembly of point type gas detector

Info

Publication number: CN216847712U
Application number: CN202123440783.XU
Authority: CN
Inventors: 刘鑫; 张松
Original assignee: Yantai Inzhuo Instrument Technology Co ltd
Current assignee: Yantai Inzhuo Instrument Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-28
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a sensor assembly of point type gas detector relates to point type gas detector technical field. The sensor comprises an assembly body, wherein the assembly body comprises a sensor body, the sensor body comprises an information storage circuit board, the information storage circuit board can store calibration information, the assembly body is detachably connected with a detector assembly, a connecting circuit board is arranged on the detector assembly, and the information storage circuit board can be in communication connection with the connecting circuit board; through being provided with information storage circuit board, information storage circuit board can be with the parameter information direct storage after the calibration to make the subassembly body can be directly good at the calibration before dispatching from the factory, the user need not to carry out the secondary calibration after changing, under the gas sensor poisoning in the subassembly body or the condition of ageing inefficacy, can change the subassembly body alone, need not on-the-spot calibration or demolish gas detector, reduced the stay time of workman on the scene, guaranteed safety.

Description

Sensor assembly of point type gas detector

Technical Field

The utility model belongs to the technical field of point type gas detector technique and specifically relates to a sensor module of point type gas detector is related to.

Background

Along with the development of economy, China pays more and more attention to safety production, and the reliability and the accuracy of a gas detector as important detection equipment in safety production directly concern the life safety of workshop workers. The main sensitive element of the gas detector is a gas sensor which is also a component easy to be poisoned and aged to fail on the gas detector. The internal circuit board of the gas detector can be used for 5-10 years, and the gas sensor has the shortest service life of several months and the longest service life of about two years according to different use environments, so that the problem that how to prolong the whole service life of the gas detector to the maximum extent is urgently needed to be solved.

The applicant finds that at least the following technical problems exist in the prior art: at present, the main method for replacing the gas sensor is to directly replace the sensor, but even if the gas sensor with the same model is produced by the same manufacturer, the output signal size is also very different when the gas sensor with the same concentration is detected, after the gas sensor is replaced, a user needs to disassemble the whole set of gas detector and send the gas detector to a metering department for metering calibration or take standard gas to industry, and the standard gas is introduced below an instrument on site for on-site calibration. The gas detector is often used in a severe environment with toxic gas, the stay time of workers is short as much as possible, the specific gravity of some toxic gas or combustible gas is much lighter than that of air, the toxic gas or combustible gas needs to be installed at the high altitude of tens of meters, the calibration difficulty of the workers by using standard gas is high, and the dismantling construction is complex.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a point type gas detector's sensor module to the user must demolish a whole set of gas detector when solving the change gas sensor that exists among the prior art, still need recalibrate the technical problem of parameter after the change. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a sensor assembly of point type gas detector, includes the subassembly body, the subassembly body includes the sensor body, the sensor body includes the information storage circuit board, the information storage circuit board can save calibration information, the subassembly body can be dismantled with detector assembly and be connected, the last connecting circuit board that is provided with of detector assembly, the information storage circuit board can with connecting circuit board communication connection.

Preferably, the sensor body further comprises a gas sensor and a signal processing circuit board, and the gas sensor, the signal processing circuit board and the information storage circuit board are connected in sequence.

Preferably, the detector assembly comprises a detector body, a connecting portion and a protective shell, the detector body is connected with the connecting portion, the connecting circuit board is arranged on the connecting portion, the connecting portion is detachably connected with the assembly body, and the protective shell covers the outside of the assembly body and is detachably connected with the connecting portion.

Preferably, the assembly body further comprises an upper shell and a lower shell, the upper shell is connected with the lower shell and covers the outer portion of the sensor body together, the upper shell is provided with a plurality of through holes, and pins on the information storage circuit board can penetrate through the through holes and then are connected with the pin holes on the connecting circuit board.

Preferably, a sealing gasket is arranged between the lower shell and the sensor body.

Preferably, one side of the upper shell, which is far away from the lower shell, is provided with a positioning protrusion, the connecting portion and the connecting circuit board are jointly provided with a positioning jack, and the positioning protrusion can be inserted into the positioning jack when the assembly body is connected with the detector assembly.

Preferably, a sealing ring is arranged between the assembly body and the protective shell.

Preferably, an air inlet is arranged at one end, away from the connecting part, of the protective shell.

Preferably, a filter screen is arranged at the air inlet.

The utility model has the advantages that: the sensor assembly of the point-type gas detector comprises an assembly body, the assembly body comprises a sensor body, the sensor body comprises an information storage circuit board, the information storage circuit board can store calibration information, the assembly body is detachably connected with the detector assembly, a connecting circuit board is arranged on the detector assembly, and the information storage circuit board can be in communication connection with the connecting circuit board; through being provided with information storage circuit board, information storage circuit board can be with the parameter information direct storage after the calibration to make the subassembly body can be directly good at the calibration before dispatching from the factory, the user need not to carry out the secondary calibration after changing, under the gas sensor poisoning in the subassembly body or the condition of ageing inefficacy, can change the subassembly body alone, need not on-the-spot calibration or demolish gas detector, reduced the stay time of workman on the scene, guaranteed safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a combined structure diagram of the module body of the present invention;

in fig. 1, the assembly body; 11. a sensor body; 111. a gas sensor; 112. a signal processing circuit board; 113. an information storage circuit board; 12. an upper housing; 121. positioning the projection; 13. a lower housing; 14. a gasket;

2. a probe assembly; 21. a probe body; 22. a connecting portion; 23. a protective shell; 231. an air inlet; 24. connecting the circuit board; 25. positioning the jack; 26. and (5) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in fig. 1, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

Referring to fig. 1 to 2, the sensor assembly of the point-type gas detector is provided in this embodiment, and includes an assembly body 1, where the assembly body 1 includes a sensor body 11, the sensor body 11 includes an information storage circuit board 113, the information storage circuit board 113 is capable of storing calibration information, the assembly body 1 is detachably connected to the detector assembly 2, a connection circuit board 24 is disposed on the detector assembly 2, and the information storage circuit board 113 is capable of being in communication connection with the connection circuit board 24; through being provided with information storage circuit board 113, information storage circuit board 113 can be with the parameter information direct storage after the calibration to make subassembly body 1 can be directly good at the calibration before dispatching from the factory, the user need not to carry out the secondary calibration after changing, under the poisoning of the gas sensor in subassembly body 1 or the condition of ageing failure, can change subassembly body 1 alone, need not on-the-spot calibration or demolish gas detector, reduced the stay time of workman at the scene, guaranteed safety.

As an alternative embodiment, the sensor body 11 further includes a gas sensor 111 and a signal processing circuit board 112, the gas sensor 111, the signal processing circuit board 112 and the information storage circuit board 113 are connected in sequence, the gas sensor 111 is a direct component for detecting various gas concentrations, the gas sensor 111 can detect and output signals to the signal processing circuit board 112 after respective gas leaks, the signal processing circuit board 112 feeds back the signals to the information storage circuit board 113 after the signals are processed, and the information storage circuit board 113 stores various calibration information and can transmit signals to the detector assembly 2 at the same time.

As an alternative embodiment, the probe assembly 2 includes a probe body 21, a connecting portion 22 and a protective shell 23, the probe body 21 is connected to the connecting portion 22, a connecting circuit board 24 is disposed on the connecting portion 22, the connecting portion 22 is detachably connected to the assembly body 1, and the protective shell 23 covers the outside of the assembly body 1 and is detachably connected to the connecting portion 22.

As an optional implementation manner, the assembly body 1 further includes an upper casing 12 and a lower casing 13, the upper casing 12 and the lower casing 13 are connected and together cover the outside of the sensor body 11, the upper casing 12 is provided with a plurality of through holes, and pins on the information storage circuit board 113 can pass through the through holes and then are connected with pin holes on the connection circuit board 24;

because the power supply line is provided with the plurality of point-type gas detectors, the power supply facility does not simply supply power to the point-type gas detector with a fault gas sensor, the arrangement of the pins and the pinholes ensures that the equipment supports hot-line plugging, and when a user replaces the component body 1, the point-type gas detectors do not need to be powered off, so that other point-type gas detectors on the same power supply line can always work normally, and the protection effect can be realized on field workers;

because the assembly body 1 is disposable, after the upper shell 12 and the lower shell 13 are covered outside the sensor body 11, the upper shell 12 and the lower shell 13 can be directly adhered together through sealant, and can be directly replaced during disassembly and assembly, which is more convenient, and the upper shell 12 and the lower shell 13 can be preferably made of plastic materials.

As an alternative embodiment, a sealing gasket 14 is disposed between the lower housing 13 and the sensor body 11, and the sealing gasket 14 performs a sealing function between the gas sensor 111 in the sensor body 11 and the lower housing 13.

As an optional implementation manner, a positioning protrusion 121 is disposed on one side of the upper housing 12 away from the lower housing 13, a positioning insertion hole 25 is jointly disposed on the connecting portion 22 and the connecting circuit board 24, and when the module body 1 is connected with the probe module 2, the positioning protrusion 121 can be inserted into the positioning insertion hole 25, so that a user can be effectively prevented from inserting a wrong position, the module body 1 is reasonably positioned when replaced, and quick installation is achieved.

As an alternative embodiment, a sealing ring 26 is disposed between the module body 1 and the protective casing 23, the sealing ring 26 is specifically located between the lower shell 13 in the module body 1 and the protective casing 23, and when the protective casing 23 covers the module body 1, the sealing ring 26 can perform a sealing function between the lower shell 13 and the protective casing 23, so that the external gas can only contact the gas sensor 111 in the module body 1, and the gas can keep a normal path.

As an optional embodiment, an end of the protective shell 23 away from the connecting portion 22 is provided with an air inlet 231, air enters the protective shell 23 through the air inlet 231, so that the gas sensor 111 in the assembly body 1 can detect the air, an end of the protective shell 23 connected with the connecting portion 22 is preferably provided with an internal thread, an end of the connecting portion 22 connected with the protective shell 23 is preferably provided with an external thread, and the protective shell 23 and the connecting portion 22 form a threaded connection, so that the assembly and disassembly are more convenient.

As an optional implementation manner, a filter screen is disposed at the air inlet 231, the filter screen can primarily filter the air entering the protective shell 23, so as to filter dust in the air, and the structure of the filter screen is conventional in the prior art, and therefore, the filter screen is not shown in the drawings.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Sensor assembly of a point-type gas detector, characterized in that it comprises an assembly body (1), in which: the assembly body (1) comprises a sensor body (11), the sensor body (11) comprises an information storage circuit board (113), the information storage circuit board (113) can store calibration information, the assembly body (1) is detachably connected with the detector assembly (2), a connecting circuit board (24) is arranged on the detector assembly (2), and the information storage circuit board (113) can be in communication connection with the connecting circuit board (24).

2. The sensor assembly of a point type gas detector according to claim 1, wherein: the sensor body (11) further comprises a gas sensor (111) and a signal processing circuit board (112), wherein the gas sensor (111), the signal processing circuit board (112) and the information storage circuit board (113) are sequentially connected.

3. The sensor assembly of a point type gas detector according to claim 1, wherein: the detector assembly (2) comprises a detector body (21), a connecting portion (22) and a protective shell (23), the detector body (21) is connected with the connecting portion (22), a connecting circuit board (24) is arranged on the connecting portion (22), the connecting portion (22) is detachably connected with the assembly body (1), and the protective shell (23) covers the outside of the assembly body (1) and is detachably connected with the connecting portion (22).

4. The sensor assembly of a point type gas detector according to claim 3, wherein: the component body (1) further comprises an upper shell (12) and a lower shell (13), the upper shell (12) and the lower shell (13) are connected and jointly covered outside the sensor body (11), a plurality of through holes are formed in the upper shell (12), and pins on the information storage circuit board (113) can penetrate through the through holes and then are connected with pin holes in the connecting circuit board (24).

5. The sensor assembly of a point type gas detector according to claim 4, wherein: a sealing gasket (14) is arranged between the lower shell (13) and the sensor body (11).

6. The sensor assembly of a point type gas detector according to claim 4, wherein: go up shell (12) and keep away from one side of lower shell (13) is provided with location arch (121), connecting portion (22) with location jack (25) have been seted up jointly on connecting circuit board (24), when subassembly body (1) is connected with detector subassembly (2) location arch (121) can insert and establish the entering in location jack (25).

7. The sensor assembly of a point type gas detector according to claim 3, wherein: a sealing ring (26) is arranged between the assembly body (1) and the protective shell (23).

8. The sensor assembly of a point type gas detector according to claim 3, wherein: an air inlet (231) is formed in one end, far away from the connecting part (22), of the protective shell (23).

9. The sensor assembly of the point type gas detector according to claim 8, wherein: and a filter screen is arranged at the air inlet (231).