Household fuel gas sensor

Abstract

The utility model discloses a household fuel gas sensor which comprises a sensor body and a clamping plate, the clamping plate is arranged on the outer wall of the sensor body, an installation assembly is installed at the top end of the sensor body and comprises an installation base, a sliding groove is formed in the inner wall of the installation base, a clamping groove is formed in the outer wall of the installation base in a penetrating mode, and the household fuel gas sensor further comprises a circular ring, a sliding block and a limiting stopper. A sliding block is arranged at the bottom end of the ring, a conical grating is installed at the top end of the ring, and a limiter is installed on one side of the inner wall of the ring. Through cooperation of the installation assembly and the limiting stopper, the conical grating can be rapidly detached from the sensor body, pollutants such as dust and impurities on the conical grating can be removed in time, it is ensured that pores of the conical grating are unblocked, air can smoothly pass through the conical grating, and therefore the air inflow and detection accuracy of the sensor are ensured, and a good filtering effect is maintained; the clean conical grating can effectively filter dust and impurities and prevent the dust and the impurities from entering the sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a household gas sensor. Background Art

[0002] Gas leakage may cause serious consequences such as fire, explosion and poisoning of personnel. With the continuous improvement of people's attention to life safety, the timely detection and early warning of gas leakage become particularly crucial. The household gas sensor plays an important role in ensuring the safety of household gas use. The emergence of the household gas sensor aims to timely detect gas leakage and send out alarm signals.

[0003] The conical grille structure set on the existing household gas sensor is fixed and not easy to disassemble and clean. As the use time increases, the conical grille will gradually accumulate pollutants such as dust and impurities. The pores of the conical grille will be blocked, resulting in poor air circulation, which in turn affects the air intake and detection accuracy of the sensor, affecting the normal operation of the sensor. In the case of gas leakage, the sensor may not be able to detect the leaked gas in time and accurately, thus increasing the potential safety hazard. Summary of the Utility Model

[0004] The utility model provides a household gas sensor. Through the cooperation of the installation component and the limiter, the conical grille can be quickly removed from the sensor body, and the pollutants such as dust and impurities on the conical grille can be removed in time to ensure the smoothness of the pores of the conical grille.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A household gas sensor includes a sensor body and a clamping plate. The clamping plate is arranged on the outer wall of the sensor body. An installation component is installed at the top of the sensor body. The installation component includes an installation seat. A chute is provided on the inner wall of the installation seat, and a card slot is provided through the outer wall of the installation seat.

[0007] It further includes a ring, a slider and a limiter. The slider is arranged at the bottom end of the ring, and a conical grille is installed at the top end of the ring. The limiter is installed on one side of the inner wall of the ring. The limiter includes a connecting block, a compression spring is installed on one side of the connecting block, and a clamping block is installed at one end of the compression spring.

[0008] Preferably, the sensor body is cylindrical, the number of clamping plates is two, threaded holes are respectively provided on the two clamping plates, and the two clamping plates are oppositely arranged on both sides of the outer wall of the sensor body.

[0009] Preferably, the installation seat is in the shape of a cylindrical tube with openings at both upper and lower ends. The number of chutes and card slots is two respectively, and the two chutes and card slots are arranged in a cross shape on the installation seat.

[0010] Preferably, the circular ring is in a circular shape, the slider is in a cuboid shape, the shape and size of the slider match those of the chute, and the circular ring is slidably connected to the mounting seat through the slider.

[0011] Preferably, the connecting block is in an "L" shape, the connecting block is connected to the clamping block through a compression spring, the size of the clamping block matches the opening size of the card slot, and the top end of the clamping block penetrates through the card slot and is arranged outside the mounting seat.

[0012] The utility model has the following beneficial effects:

[0013] Through the cooperation of the installation component and the limiter, the conical grille can be quickly removed from the sensor body, and the dust, impurities and other pollutants on the conical grille can be removed in time, ensuring the smoothness of the pores of the conical grille, enabling air to pass through smoothly, thereby ensuring the air intake and detection accuracy of the sensor, maintaining a good filtering effect. The clean conical grille can effectively filter dust and impurities, prevent them from entering the sensor interior, ensure the normal operation of the sensor, and can detect the leaked gas in time and accurately when there is a gas leak, reducing the safety risk and reducing the detection error or failure caused by problems with the conical grille. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the gas sensor;

[0015] Figure 2 is a schematic internal structural diagram of the gas sensor;

[0016] Figure 3 is a schematic structural diagram of the limiter;

[0017] Figure 4 is a schematic structural diagram of the installation component, the circular ring, the slider, the limiter and the conical grille.

[0018] In the figure: 1, sensor body; 2, clamping plate; 3, installation component; 301, mounting seat; 302, chute; 303, card slot; 4, circular ring; 5, slider; 6, limiter; 601, connecting block; 602, compression spring; 603, clamping block; 7, conical grille. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Refer to Figures 1-4, A household gas sensor, comprising a sensor body 1 and a clamping plate 2. The outer wall of the sensor body 1 is provided with the clamping plate 2. The sensor body 1 is cylindrical. The number of the clamping plates 2 is two. Threaded holes are respectively formed in the two clamping plates 2. The two clamping plates 2 are oppositely arranged on both sides of the outer wall of the sensor body 1. The sensor body 1 is firmly installed at the required position by bolts passing through the threaded holes in the clamping plates 2;

[0021] An installation component 3 is installed at the top end of the sensor body 1. The installation component 3 includes an installation seat 301. A chute 302 is formed in the inner wall of the installation seat 301. A card slot 303 is formed through the outer wall of the installation seat 301. The installation seat 301 is in the shape of a cylindrical tube with openings at both upper and lower ends. The number of the chutes 302 and the card slots 303 is two respectively. The two chutes 302 and the card slots 303 are arranged in a cross shape on the installation seat 301. The sensor body 1 is a semiconductor gas sensor, which uses the change in the conductivity of semiconductor materials to detect gas. When the gas molecules to be measured come into contact with the semiconductor surface, they will interact with the chemical substances on the semiconductor surface, resulting in a change in the resistance value of the semiconductor. By measuring the change in the semiconductor resistance value, the concentration of the gas to be measured can be determined, so as to detect the presence of gas;

[0022] A slider 5 is arranged at the bottom end of the ring 4. The ring 4 is in a circular ring shape. The slider 5 is in a cuboid shape. The shape and size of the slider 5 match those of the chute 302. The ring 4 is slidably connected to the installation seat 301 through the slider 5. The bottom surface of the ring 4 abuts against the top surface of the installation seat 301. The slider 5 can smoothly slide in the chute 302. When carrying out installation and disassembly work, align the slider 5 with the chute 302, and then gently push the ring 4. The slider 5 will slide along the chute 302, so as to realize the sliding connection of the ring 4 on the installation seat 301;

[0023] At the top of the circular ring 4, a conical grille 7 is installed. Through the conical grille 7, it is ensured that the gas entering the sensor is relatively pure, thereby improving the detection accuracy and service life of the sensor. The limiter 6 is installed on one side of the inner wall of the circular ring 4. The limiter 6 includes a connecting block 601. On one side of the connecting block 601, a compression spring 602 is installed. At one end of the compression spring 602, a clamping block 603 is installed. The connecting block 601 is in an "L" shape. The connecting block 601 is connected to the clamping block 603 through the compression spring 602. The size of the clamping block 603 matches the opening size of the card slot 303. The top of the clamping block 603 penetrates through the card slot 303 and is set outside the mounting base 301. The compression spring 602 has a certain elasticity and can be compressed when subjected to pressure, and can return to its original state when the pressure disappears. In the normal state, the compression spring 602 is in an extended state, pushing the clamping block 603 outwards. When the conical grille 7 needs to be installed, the circular ring 4 is docked with the mounting base 301, so that the clamping block 603 is aligned with the card slot 303. During the docking process, the outer wall of the mounting base 301 will exert pressure on the clamping block 603, causing the compression spring 602 to be compressed, and the clamping block 603 to retract towards the connecting block 601. When the circular ring 4 and the mounting base 301 are completely docked in place, the card slot 303 is aligned with the clamping block 603, and the elastic force of the compression spring 602 pushes the clamping block 603 into the card slot 303, thereby realizing the clamping and fixing of the circular ring 4 and the mounting base 301, and at the same time firmly installing the conical grille 7 in the corresponding position.

[0024] When using this device, first externally connect a power source to the electrical equipment in this device, place this device at the designated working position. Through the cooperation of the installation component 3 and the limiter 6, the conical grille 7 can be quickly removed from the sensor body 1, and the dust, impurities and other pollutants on the conical grille 7 can be removed in time, ensuring that the pores of the conical grille 7 are unobstructed, enabling air to pass through smoothly, thereby ensuring the air intake and detection accuracy of the sensor, maintaining a good filtering effect. The clean conical grille 7 can effectively filter dust and impurities, prevent them from entering the sensor interior, ensure that the sensor can work normally, and can detect the leaked gas in time and accurately when there is a gas leak, reducing the safety risk and reducing the detection error or failure caused by problems with the conical grille 7.

[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A household gas sensor, comprising a sensor body (1) and a card board (2), characterized in that: The outer wall of the sensor body (1) is provided with a card plate (2), the top of the sensor body (1) is provided with a mounting assembly (3), the mounting assembly (3) comprises a mounting seat (301), the inner wall of the mounting seat (301) is provided with a slide groove (302), and the outer wall of the mounting seat (301) is provided with a card groove (303); It also includes a circular ring (4), a slider (5) and a stopper (6), wherein the bottom end of the circular ring (4) is provided with a slider (5), the top end of the circular ring (4) is provided with a conical grille (7), the stopper (6) is installed on one side of the inner wall of the circular ring (4), and the stopper (6) includes a connecting block (601), a compression spring (602) is installed on one side of the connecting block (601), and a clamping block (603) is installed on one end of the compression spring (602).

2. A household gas sensor according to claim 1, characterized in that: The sensor body (1) is cylindrical, the number of the clamping plates (2) is two, threaded holes are respectively provided on the two clamping plates (2), and the two clamping plates (2) are arranged opposite to each other on two sides of the outer wall of the sensor body (1).

3. A household gas sensor according to claim 1, characterized in that: The mounting seat (301) is cylindrical with openings at both ends. The number of the sliding grooves (302) and the number of the clamping grooves (303) are two respectively. The two sliding grooves (302) and the clamping grooves (303) are arranged on the mounting seat (301) in a cross shape.

4. A household gas sensor according to claim 3, characterized in that: The ring (4) is in the shape of a ring, the slider (5) is in the shape of a cuboid, the shape and size of the slider (5) match the shape and size of the slide groove (302), and the ring (4) is slidably connected to the mounting seat (301) via the slider (5).

5. A household gas sensor according to claim 3, characterized in that: The connecting block (601) is in an "L" shape. The connecting block (601) is connected to the clamping block (603) via a compression spring (602). The size of the clamping block (603) matches the opening size of the clamping slot (303). The top end of the clamping block (603) passes through the clamping slot (303) and is arranged outside the mounting seat (301).

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