Mounting structure for sensing core material of harmful gas detector

Abstract

The utility model relates to the technical field of gas sensors, and particularly discloses a harmful gas detector sensing core material mounting structure which comprises a first shell used for mounting a sensing core material, one end of the first shell is provided with a breathable protective cover, the end part of the sensing core material extends into the breathable protective cover, and the other end of the first shell is provided with a second shell used for mounting the sensing core material. A pin of the sensing core material penetrates out of the other end of the first shell; the second shell covers the pins of the sensing core material, one end of the second shell is detachably connected with the first shell, and the other end of the second shell is detachably connected with the shell or the circuit board of the harmful gas detector, so that the problems that the pins of the traditional sensing core material are exposed outside and are corroded by moisture, so that the conductivity of the pins is reduced, and the service life of the harmful gas detector is prolonged are solved. Therefore, the normal use of the harmful gas detector is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of gas sensors, and specifically discloses a sensor core material installation structure for a harmful gas detector. Background Art

[0002] Hazardous gas detectors are generally used to detect hazardous or flammable and explosive gases in the air, such as carbon monoxide, sulfur dioxide, nitrogen oxides, and volatile organic compounds. They are widely used in industrial fields, indoor environmental monitoring, and vehicle exhaust emission monitoring. In potentially hazardous environments, such as coal mines and chemical plants, hazardous gas detection can help detect and prevent accidents in a timely manner. Furthermore, in indoor environments, hazardous gas detection can also be used to ensure indoor air quality and protect people's health.

[0003] The sensor core material is one of the indispensable components in the harmful gas detector and is the core component for detecting the concentration of harmful gases. The sensor core material detects the concentration of harmful gases in the environment through electrochemical technology, photoelectric ionization technology, infrared technology and semiconductor technology, and transmits it to the circuit board in the harmful gas detector through telecommunication. It is intuitively displayed through an oscilloscope or remote signal transmission, thereby providing feedback to the detection personnel on the concentration of harmful gases in the environment.

[0004] The current sensor core material is usually wrapped in a plastic shell, with one end exposed to detect harmful gases in the environment, and the other end connected to the pins by soldering, and the pins are connected to the contacts on the circuit board by soldering. Under this installation method, the pins of the sensor core material are usually exposed. In harsh environments, such as areas with heavy rain or areas with complex water quality in mines, the pins are easily corroded by moisture, resulting in a decrease in conductivity, thereby reducing the normal use of the harmful gas detector. Therefore, in view of this, the inventor provides a harmful gas detector sensor core material installation structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the pins of the traditional sensing core material are exposed to the outside and are easily corroded by moisture, resulting in a decrease in the conductivity of the pins, thereby reducing the normal use of the harmful gas detector.

[0006] In order to achieve the above objectives, the basic solution of the utility model provides a harmful gas detector sensor core material installation structure, including:

[0007] A first housing for mounting a sensor core material, wherein one end of the first housing is provided with a breathable protective cover, an end of the sensor core material extends into the breathable protective cover, and a pin of the sensor core material extends out of the other end of the first housing;

[0008] The second shell covers the pins of the sensing core material, one end of the second shell is detachably connected to the first shell, and the other end of the second shell is detachably connected to the shell or circuit board of the harmful gas detector.

[0009] The principles and effects of this basic solution are:

[0010] Compared with the prior art, the utility model provides a first shell and a second shell to respectively protect the sensing core material and the pins of the sensing core material, so that when the sensing core material is used to detect harmful gases in the environment, the pins of the sensing core material can be prevented from being corroded or contaminated by the environment. This effectively improves the protection effect of the pins of the sensing core material while ensuring the working performance of the sensing core material, thereby increasing the overall service life of the pins of the sensing core material and the harmful gas detector, and solves the problem that the pins of the traditional sensing core material are exposed to the outside and corroded by moisture, resulting in a decrease in the conductivity of the pins, thereby reducing the normal use of the harmful gas detector.

[0011] Furthermore, the second housing sidewall is evenly provided with a plurality of grilles, and a plurality of connecting columns are provided between vertically adjacent grilles. The provision of the grilles increases heat exchange inside and outside the second housing, thereby avoiding the problem of excessively long conductive time of the pins, local temperature rise, and inability to dissipate heat in a timely manner.

[0012] Furthermore, an inclined guide ring is provided on each side of the grille located within the second shell. The guide ring is located at a higher level on the side away from the second shell than on the side closer to the second shell. This arrangement ensures heat dissipation within the second shell while preventing moisture from flowing through the grille into the second shell, further enhancing the waterproofing of the second shell.

[0013] Furthermore, the second housing has a mounting groove on its side near the first housing that mates with the outer wall of the first housing. Several elastic sliders are evenly distributed on the outer wall of the first housing. Several latching blocks are located on the top of the second housing. Each of the latching blocks has a slot on its side near the first housing for receiving the elastic sliders. The elastic sliders and the slots cooperate to facilitate connection and removal between the first and second housings.

[0014] Furthermore, the inner wall of the first housing is uniformly provided with cavities for mounting the elastic sliders. The elastic sliders comprise an elastic member disposed within the cavities and a sliding member slidably connected to the cavities and capable of compressing the elastic member. The elastic potential energy of the elastic member can be used to tightly compress the end of the sliding member into the slot, thereby achieving a tight fit between the first and second housings.

[0015] Furthermore, the elastic slider is tilted at one end close to the slot, and a side surface of the slot is also provided with an inclined guide surface. The guide ring is provided to facilitate the separation of the elastic slider and the slot, that is, the first shell and the second shell are disassembled from each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of a sensor core material installation structure for a harmful gas detector proposed in an embodiment of the present application is shown;

[0018] Figure 2 A schematic diagram of the side wall structure of the second shell in a sensor core material installation structure of a harmful gas detector proposed in an embodiment of the present application is shown;

[0019] Figure 3 A schematic diagram of the coordination of elastic sliders in a sensor core material installation structure of a harmful gas detector proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0020] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0021] The reference numerals in the drawings of the specification include: breathable protective cover 1, first shell 2, second shell 3, mounting ring 4, grille 5, connecting column 6, cavity 7, sliding member 8, block 9, elastic member 10.

[0022] A harmful gas detector sensor core material installation structure, for example Figure 1 As shown: It includes a first shell 2 for mounting a sensing core material and a second shell 3 covering the pins of the sensing core material, specifically as follows:

[0023] A breathable protective cover 1 is provided on the top of the first shell 2 , the bottom of the first shell 2 is sealed, the sensing core material is installed in the first shell 2 , and the top end of the sensing core material extends into the breathable protective cover 1 , and the pins of the sensing core material pass through the bottom of the first shell 2 .

[0024] The bottom of the second shell 3 is connected to the first shell 2. The bottom of the second shell 3 is provided with a mounting ring 4. The mounting ring 4 is connected to the shell or circuit board of the harmful gas detector through multiple bolts. Figure 2 As shown, a number of grilles 5 are evenly provided on the side walls of the second shell 3, and a number of connecting columns 6 are provided between vertically adjacent grilles 5. An inclined guide ring is provided on the side of the grille 5 located inside the second shell 3, and the horizontal height of the guide ring away from the second shell 3 is higher than the horizontal height of the guide ring close to the second shell 3. Through this arrangement, while ensuring heat dissipation inside the second shell 3, it also prevents moisture from flowing into the second shell 3 from the grille 5, thereby improving the waterproof effect of the interior of the second shell 3.

[0025] The top of the second shell 3 is provided with a mounting groove that is adapted to the outer wall of the first shell 2. The first shell 2 and the second shell 3 are connected to each other through the mutual cooperation between the elastic card block 9 and the card slot. Specifically, a plurality of mounting cavities are evenly provided on the inner wall of the first shell 2. The mounting cavity is used to install an elastic slider. The elastic slider includes an elastic member 10 provided in the cavity 7 and a sliding member 8 that can be slidably connected to the cavity 7 and can squeeze the elastic member 10. The elastic member 10 is a spring or a reed, while the sliding member 8 can be a hard component. Card blocks 9 corresponding to the number of elastic sliders are provided on the top of the second shell 3, and a card slot is provided between the two sides of the card block 9 to accommodate the sliding member 8 in the elastic slider for insertion. In order to facilitate the sliding member 8 to be inserted into and out of the card slot, the sliding member 8 in this embodiment is inclined at one end close to the card slot, and an inclined guide surface is also provided between the side surfaces of one side of the card slot.

[0026] Since the second shell 3 will affect the normal soldering process of the pins of the sensor core material and the circuit board during the installation process, it is necessary to first connect the pins of the sensor core material to the circuit board, and then connect the second shell 3 to the first shell 2. That is, after the soldering of the pins of the sensor core material and the circuit board is completed, the second shell 3 is put on the outer wall of the first shell 2 until the second shell 3 is located under the elastic slider, and then turn to the second shell 3 so that the sliding parts 8 in each elastic slider are respectively inserted into each slot, so that the first shell 2 and the second shell 3 can be locked with each other, and then the mounting ring 4 is connected to the shell or circuit board of the harmful gas detector by multiple bolts to complete the entire installation process. When the second shell 3 needs to be disassembled, the bolts are first removed, and then the second shell 3 is rotated in the opposite direction so that the sliding parts 8 in each elastic slider are respectively disengaged from each slot, and the second shell 3 can be disassembled.

[0027] Compared with the prior art, the present invention provides a first shell 2 and a second shell 3 to protect the sensing core material and the pins of the sensing core material respectively, so that when the sensing core material is used to detect harmful gases in the environment, the pins of the sensing core material can be prevented from being corroded or contaminated by the environment. Therefore, while ensuring the working performance of the sensing core material, the protection effect of the pins of the sensing core material is effectively improved, thereby increasing the overall service life of the pins of the sensing core material and the harmful gas detector, and solving the problem that the pins of the traditional sensing core material are exposed to the outside and corroded by moisture, resulting in a decrease in the conductivity of the pins, thereby reducing the normal use of the harmful gas detector.

[0028] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A harmful gas detector sensor core material installation structure, characterized in that: include: A first housing for mounting a sensor core material, wherein one end of the first housing is provided with a breathable protective cover, an end of the sensor core material extends into the breathable protective cover, and a pin of the sensor core material extends out of the other end of the first housing; The second shell covers the pins of the sensing core material, one end of the second shell is detachably connected to the first shell, and the other end of the second shell is detachably connected to the shell or circuit board of the harmful gas detector.

2. The sensor core material installation structure of a harmful gas detector according to claim 1, characterized in that: The side wall of the second shell is evenly provided with a plurality of grids, and a plurality of connecting columns are provided between vertically adjacent grids.

3. The sensor core material installation structure of a harmful gas detector according to claim 2, characterized in that: An inclined guide ring is provided on one side of the grille located in the second shell, and the horizontal height of the guide ring away from the second shell is higher than the horizontal height of the guide ring close to the second shell.

4. A harmful gas detector sensor core material installation structure according to any one of claims 1 to 3, characterized in that: The second shell is provided with a mounting groove adapted to the outer wall of the first shell on the side close to the first shell, and a number of elastic sliders are evenly arranged on the outer wall of the first shell. A number of card blocks are provided on the top of the second shell, and the card blocks are respectively provided with card slots for inserting the elastic sliders on the side close to the first shell.

5. The sensor core material installation structure of a harmful gas detector according to claim 4, characterized in that: The inner wall of the first shell is evenly provided with cavities for installing the elastic sliders. The elastic sliders include an elastic member arranged in the cavity and a sliding member that can be slidably connected to the cavity and can squeeze the elastic member.

6. The sensor core material installation structure of a harmful gas detector according to claim 5, characterized in that: The elastic sliding block is arranged obliquely at one end close to the clamping slot, and an inclined guide ring is also provided on one side surface of the clamping slot.

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