Alarm for gas detection

Abstract

The utility model discloses an alarm for gas detection, and relates to the technical field of gas detection. Comprising a shell, a storage battery, a controller and a gas detector body are sequentially arranged in the shell from left to right, and a gas inlet is formed in the side, close to the gas detector body, of the shell. The mounting frame and the bolts are arranged, the bolts are screwed, limitation on the mounting frame can be relieved, then the mounting frame and the filter screen are taken down, after cleaning is completed, the filter screen and the mounting frame are mounted back to the original position, the bolts are screwed, and the filter screen is fixed, so that the filter screen is rapidly disassembled and assembled, convenience is provided for workers to clean the filter screen, and the practicability is high. According to the gas detector body, the filter screen is arranged, so that the risk that the filter screen meshes are blocked due to excessive dust and impurities in the filter screen meshes is reduced, circulation of gas in the gas inlet is promoted, the sampling efficiency and the detection accuracy of the gas detector body are effectively improved, and it is ensured that an alarm can be quickly and accurately given out when poisonous gas leaks.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to an alarm for gas detection. Background Art

[0002] The gas detection alarm is a gas leak detection alarm instrument, which is mainly used to detect the leakage of flammable or toxic gases in the environment. Once the gas concentration is detected to reach or exceed the alarm value set by the alarm, the alarm will send out sound and light alarm signals to remind personnel to take corresponding safety measures, thereby further ensuring safe production.

[0003] Chinese utility model patent CN220651410U discloses a gas alarm for toxic gas detection, including a base, a universal wheel and a support frame are arranged below the base, a shell is installed above the base, shock-absorbing pads are arranged around the inside of the shell, and a gas detector, a main controller, and a battery are installed from left to right; an air outlet is opened on the side of the shell close to the gas detector; an air duct, an air pump, an air inlet, and a guide cover are connected to the top of the gas detector in sequence; an alarm indicator light and an alarm are installed above the shell, and the internal circuits of the alarm indicator light and the alarm are connected to the main controller. The utility model draws gas into the gas detector for analysis and processing. If there is toxic gas, the alarm is controlled by the main controller to alarm, and the alarm indicator light flashes to prevent the alarm from being heard due to the noise in the workshop; its rotation direction is adjustable, which is convenient for detecting gases in different directions according to needs, and it is flexible and easy to use.

[0004] In order to filter the gas, the above-mentioned gas alarm for detecting toxic gas is provided with filter holes on the surface of the air inlet. However, the above-mentioned gas alarm for detecting toxic gas does not have the function of removing the filter holes. When external gas enters the air inlet, dust and impurities in the gas will remain in the filter holes. If the filter holes cannot be removed, the filter holes cannot be cleaned in time, which may cause the filter holes to be blocked and the circulation rate of the gas in the air inlet to be reduced, thereby affecting the sampling efficiency and detection accuracy of the gas alarm. Utility Model Content

[0005] The utility model provides a gas detection alarm to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas detection alarm, comprising a shell, wherein a battery, a controller and a gas detector body are arranged in sequence from left to right inside the shell, an air inlet is provided on one side of the shell close to the gas detector body, an air guide tube is fixedly provided on one side of the air inlet, an air pump is fixedly provided on one end of the air guide tube, one side of the air pump is fixedly connected to the gas detector body, a filter is movably provided on the other side of the air inlet, an installation frame is fixedly provided on the outside of the filter, screw holes are provided at the four corners of the installation frame, and bolts are movably provided in the screw holes, and the connection relationship between the bolts and the air inlet is a movable plug-in connection;

[0007] A base is movably provided at the bottom of the shell, a driving motor is fixedly provided inside the base, a first bevel gear is fixedly provided on the output shaft of the driving motor, a second bevel gear is movably provided on one side of the first bevel gear, the second bevel gear and the first bevel gear are connected in a meshing connection, a threaded rod is fixedly provided on the inner wall of the second bevel gear, a threaded barrel is movably provided outside the threaded rod, and the threaded barrel and the threaded rod are connected in a threaded connection.

[0008] Furthermore, an audible and visual alarm is fixedly arranged on one side of the top of the shell.

[0009] Furthermore, an air outlet is provided below the air inlet.

[0010] Furthermore, a deflector is fixedly provided on the outside of the air inlet, and the deflector is funnel-shaped.

[0011] Furthermore, slide cylinders are fixedly arranged on both sides of the base, and slide rods are movably arranged inside the slide cylinders.

[0012] Furthermore, the threaded barrel and the top of the sliding rod are both fixedly connected to the shell.

[0013] Compared with the prior art, the utility model provides a gas detection alarm having the following features:

[0014] Beneficial effects:

[0015] 1. The gas detection alarm is provided with an installation frame and bolts. By tightening the bolts, the restriction on the installation frame can be released, and then the installation frame and the filter can be removed. After cleaning, the filter and the installation frame are put back in place, and the bolts are tightened to fix the filter, thereby realizing the rapid disassembly and installation of the filter, providing convenience for the staff to clean the filter, reducing the risk of clogging the filter mesh due to excessive dust and impurities in the filter mesh, and promoting the circulation of gas in the air inlet, thereby effectively improving the sampling efficiency and detection accuracy of the gas detector body, ensuring that the alarm can be quickly and accurately sounded when toxic gas leaks.

[0016] 2. The gas detection alarm is provided with a base, a driving motor, a first bevel gear, a second bevel gear, a threaded rod, a threaded barrel, a sliding barrel and a slide rod. The operation of the driving motor causes the first bevel gear to rotate. Due to the meshing action of the first bevel gear and the second bevel gear, the second bevel gear rotates with the rotation of the first bevel gear, thereby driving the threaded rod to rotate. With the cooperation of the sliding barrel and the slide rod, the threaded barrel moves vertically outside the threaded rod, thereby achieving the purpose of adjusting the height of the shell, so as to adjust the height of the air inlet according to the characteristics of the gas to be detected, expand the application scope of the device, and further improve the accuracy of the detection of the gas detector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural front view of the utility model;

[0019] Figure 3 It is a structural cross-sectional view of the air inlet of the utility model.

[0020] In the figure: 1, shell; 201, battery; 202, controller; 203, gas detector body; 204, sound and light alarm; 205, air outlet; 206, air deflector; 301, air pump; 302, air duct; 303, air inlet; 304, filter; 305, mounting frame; 306, bolt; 401, base; 402, drive motor; 403, first bevel gear; 404, second bevel gear; 405, threaded rod; 406, threaded cylinder; 407, slide cylinder; 408, slide rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model discloses a gas detection alarm, including a shell 1, wherein a battery 201, a controller 202 and a gas detector body 203 are sequentially arranged inside the shell 1 from left to right, an air inlet 303 is provided on one side of the shell 1 close to the gas detector body 203, an air guide tube 302 is fixedly arranged on one side of the air inlet 303, an air pump 301 is fixedly arranged on one end of the air guide tube 302, one side of the air pump 301 is fixedly connected to the gas detector body 203, a filter screen 304 is movably arranged on the other side of the air inlet 303, an installation frame 305 is fixedly arranged on the outside of the filter screen 304, screw holes are provided at four corners of the installation frame 305, and bolts 306 are movably arranged in the screw holes, and the connection relationship between the bolts 306 and the air inlet 303 is a movable plug-in connection;

[0023] A base 401 is movably provided at the bottom of the shell 1, a driving motor 402 is fixedly provided inside the base 401, a first bevel gear 403 is fixedly provided on the output shaft of the driving motor 402, a second bevel gear 404 is movably provided on one side of the first bevel gear 403, the second bevel gear 404 and the first bevel gear 403 are connected in a meshing connection, a threaded rod 405 is fixedly provided on the inner wall of the second bevel gear 404, a threaded barrel 406 is movably provided outside the threaded rod 405, and the threaded barrel 406 and the threaded rod 405 are connected in a threaded connection.

[0024] Specifically, a sound and light alarm 204 is fixedly arranged on one side of the top of the housing 1 .

[0025] In this embodiment, by providing an audible and visual alarm 204, when the audible and visual alarm 204 is triggered, an alarm sound is emitted and a warning light flashes, thereby alerting the staff so that the staff can respond in a timely manner.

[0026] Specifically, an air outlet 205 is provided below the air inlet 303 .

[0027] In this embodiment, by setting the gas outlet 205, the detected gas may be discharged from the gas outlet 205, and at the same time, the heat generated by the operation of each electrical device in the shell 1 is also dissipated through the circulation of the gas, thereby achieving the purpose of heat dissipation inside the shell 1.

[0028] Specifically, a guide cover 206 is fixedly disposed outside the air inlet 303 , and the guide cover 206 is funnel-shaped.

[0029] In this embodiment, by setting up the guide cover 206, the funnel-shaped guide cover 206 can effectively capture and concentrate airflow from different directions and guide it into the air inlet 303, which helps to improve the air intake efficiency and ensure that the equipment or system obtains sufficient and stable airflow supply.

[0030] Specifically, slide cylinders 407 are fixedly provided on both sides of the base 401 , and a slide rod 408 is movably provided inside the slide cylinder 407 .

[0031] In this embodiment, by providing a slide cylinder 407 and a slide rod 408, the threaded cylinder 406 moves while the slide rod 408 moves accordingly. Since the slide cylinder 407 is in contact with the slide rod 408, the threaded cylinder 406 always moves in the vertical direction.

[0032] Specifically, the tops of the threaded barrel 406 and the sliding rod 408 are fixedly connected to the housing 1 .

[0033] In this embodiment, by providing the housing 1 , the threaded barrel 406 and the slide bar 408 , when the threaded barrel 406 and the slide bar 408 move, the housing 1 moves up and down accordingly, thereby achieving adjustment of the height of the housing 1 .

[0034] When in use, the device is moved as a whole to the environment to be detected, and the battery 201 is used to power the electrical equipment of the device, and the drive motor 402 is started. The drive motor 402 drives the first bevel gear 403 to rotate, and the second bevel gear 404 rotates accordingly, and the threaded rod 405 also rotates accordingly. With the cooperation of the slide cylinder 407 and the slide rod 408, the threaded cylinder 406 moves in the vertical direction, and then the height of the shell 1 is adjusted until the height of the air inlet 303 meets the characteristics of the gas to be detected, thereby improving the detection accuracy of the gas detector body 203, and the air pump 301 is started, and the external The gas from the outside world enters from the air inlet 303, and the filter 304 will filter it. The dust and impurities in the gas will remain in the mesh of the filter 304 to prevent the dust and impurities from entering the vacuum pump 301, thereby extending the service life of the vacuum pump 301. The filtered gas enters the gas detector body 203 through the air duct 302. After the gas detector body 203 detects the gas, the detection result is sent to the controller 202. When the concentration of the toxic gas is greater than or equal to the set alarm value, the sound and light alarm 204 starts to operate to alert the staff, and the detected gas is discharged from the air outlet 205.

[0035] When the filter 304 needs to be cleaned, the bolt 306 is turned, the limit of the installation frame 305 is released, and the installation frame 305 and the filter 304 are removed to facilitate the staff to clean the filter 304. After cleaning, the filter 304 and the installation frame 305 are put back, and the bolt 306 is tightened to fix the installation frame 305, thereby improving work efficiency.

[0036] In summary, the gas detection alarm is provided with a mounting frame 305 and a bolt 306. By tightening the bolt 306, the restriction on the mounting frame 305 can be released, and then the mounting frame 305 and the filter 304 can be removed. After cleaning, the filter 304 and the mounting frame 305 are put back in place, and the bolt 306 is tightened to fix the filter 304, thereby realizing the rapid disassembly and installation of the filter 304, providing convenience for the staff to clean the filter 304, reducing the risk of clogging the mesh of the filter 304 due to excessive dust and impurities in the mesh of the filter 304, and promoting the circulation of gas in the air inlet 303, thereby effectively improving the sampling efficiency and detection accuracy of the gas detector body 203, ensuring that an alarm can be quickly and accurately sounded when a toxic gas leaks. A base 401, a driving motor 402, a first bevel gear 403, a second bevel gear 404, a threaded rod 405, a threaded cylinder 406, a slide cylinder 407 and a slide rod 408 are arranged. The operation of the driving motor 402 causes the first bevel gear 403 to rotate. Due to the meshing action of the first bevel gear 403 and the second bevel gear 404, the second bevel gear 404 rotates with the rotation of the first bevel gear 403, thereby driving the threaded rod 405 to rotate. With the cooperation of the slide cylinder 407 and the slide rod 408, the threaded cylinder 406 therefore moves vertically outside the threaded rod 405, thereby achieving the purpose of adjusting the height of the shell 1, so as to adjust the height of the air inlet 303 according to the characteristics of the gas to be detected, expand the scope of application of the device, and further improve the accuracy of detection of the gas detector body 203.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas detection alarm, comprising a housing (1), characterized in that: The shell (1) is provided with a storage battery (201), a controller (202) and a gas detector body (203) in sequence from left to right. The shell (1) is provided with an air inlet (303) on one side close to the gas detector body (203). An air duct (302) is fixedly provided on one side of the air inlet (303). An air pump (301) is fixedly provided on one end of the air duct (302). One side of the air pump (301) is fixedly connected to the gas detector body (203). A filter screen (304) is movably provided on the other side of the air inlet (303). An installation frame (305) is fixedly provided on the outside of the filter screen (304). Screw holes are provided at four corners of the installation frame (305), and bolts (306) are movably provided in the screw holes. The connection relationship between the bolts (306) and the air inlet (303) is a movably plug-in connection. A base (401) is movably provided at the bottom of the shell (1), a driving motor (402) is fixedly provided inside the base (401), a first bevel gear (403) is fixedly provided on the output shaft of the driving motor (402), a second bevel gear (404) is movably provided on one side of the first bevel gear (403), the second bevel gear (404) and the first bevel gear (403) are connected in a meshing relationship, a threaded rod (405) is fixedly provided on the inner wall of the second bevel gear (404), a threaded barrel (406) is movably provided outside the threaded rod (405), and the threaded barrel (406) and the threaded rod (405) are connected in a threaded relationship.

2. A gas detection alarm according to claim 1, characterized in that: An audible and visual alarm (204) is fixedly arranged on one side of the top of the housing (1).

3. A gas detection alarm according to claim 1, characterized in that: An air outlet (205) is provided below the air inlet (303).

4. A gas detection alarm according to claim 1, characterized in that: A flow guide cover (206) is fixedly arranged outside the air inlet (303), and the flow guide cover (206) is funnel-shaped.

5. A gas detection alarm according to claim 1, characterized in that: Slide cylinders (407) are fixedly arranged on both sides of the base (401), and a slide rod (408) is movably arranged inside the slide cylinder (407).

6. A gas detection alarm according to claim 1, characterized in that: The tops of the threaded cylinder (406) and the sliding rod (408) are both fixedly connected to the housing (1).

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