A gas alarm with protective function

Abstract

The utility model relates to the technical field of gas leakage, and discloses a gas alarm with a protective function, comprising a shell, a power fan is fixedly connected to the left side of the inner wall of the shell, an extraction end of the power fan is connected to an extraction pipe, the bottom end of the extraction pipe is connected to a filter box, an adsorption sponge is fixedly connected to the inner wall of the filter box, an output end of the power fan is connected to a delivery pipe, a front end of the delivery pipe is connected to a porous nozzle, the top wall of the porous nozzle is fixedly connected to the inner top wall of the shell, a detection device is fixedly connected to the front side of the inner wall of the shell, and a plurality of detection slots are equidistantly provided on the bottom wall of the shell. In the utility model, by starting the power fan, the extracted airflow can be filtered, thereby blowing out the detection slot, and the accumulated dust is blown out by the high-pressure output airflow, thereby reducing the situation where dust blocks the detection slot and affects the alarm operation.

Description

Technical Field

[0001] The utility model relates to the technical field of gas leakage, in particular to a gas alarm with a protective function. Background Art

[0002] Gas leakage refers to the phenomenon that gas in gas pipelines or equipment is accidentally or uncontrolledly released from the system into the surrounding environment. This situation may cause serious safety problems because gas is flammable and combustible. Once it leaks and contacts a fire source, it may cause dangers such as fire, explosion or poisoning.

[0003] When detecting leaked gas, a gas alarm is generally used in conjunction with it. A gas alarm is a safety device used to detect indoor gas leaks. It can monitor changes in gas concentration in the air and sound an alarm when it detects that the gas concentration exceeds a safe range, reminding users to take appropriate countermeasures to prevent dangerous events such as fire, explosion or poisoning.

[0004] The existing gas alarm uses multiple detection slots to allow gas to enter the device and then be detected by the detection equipment inside the device to activate the alarm. Therefore, when the detection slot is blocked by larger particles or dust, the detection effect will be reduced, so that the work of the alarm is disturbed and the alarm work cannot be completed well. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a gas alarm with a protective function, aiming to improve the problem.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas alarm with a protective function, comprising a shell, a power fan is fixedly connected to the left side of the inner wall of the shell, the extraction end of the power fan is connected to an extraction pipe, the bottom end of the extraction pipe is connected to a filter box, the inner wall of the filter box is fixedly connected to an adsorption sponge, the output end of the power fan is connected to a delivery pipe, the front end of the delivery pipe is connected to a porous nozzle, the top wall of the porous nozzle is fixedly connected to the inner top wall of the shell, the front side of the inner wall of the shell is fixedly connected to a detection device, the bottom wall of the shell is equidistantly provided with a plurality of detection slots, the right side of the filter box is fixedly connected to the left side of the shell, and protective mechanisms are provided on both the left and right ends of the front side of the shell.

[0007] As a further description of the above technical solution:

[0008] The protection mechanism includes two electric telescopic rods, adjacent sides of the two electric telescopic rods are fixedly connected to the front side of the shell, the output ends of the two electric telescopic rods are fixedly connected to connecting plates, the left and right ends of the front side of the shell are provided with sliding grooves, the rear sides of the two connecting plates are respectively slidably connected to the corresponding sliding grooves, the bottoms of the two connecting plates are fixedly connected to protection plates, and the upper and lower sides of the shell are connected to two protection air cushions.

[0009] As a further description of the above technical solution:

[0010] A control switch is fixedly connected to the front end of the left side of the shell, and the control switch is electrically connected to the power fan, the detection equipment and the electric telescopic rod respectively.

[0011] As a further description of the above technical solution:

[0012] A plurality of filter plates are fixedly connected to the left side of the filter box at equal intervals, and the shapes of the plurality of filter plates are circular.

[0013] As a further description of the above technical solution:

[0014] A dust cover is arranged on the left side of the shell, and the right side of the dust cover is rotatably connected to the left side of the control switch through a hinge.

[0015] As a further description of the above technical solution:

[0016] A rubber ring is fixedly mounted on the outer wall of the delivery pipe, and the outer wall of the rubber ring is fixedly connected to the rear side of the multi-hole nozzle.

[0017] As a further description of the above technical solution:

[0018] The upper and lower sides of the shell are both provided with inclined surfaces.

[0019] As a further description of the above technical solution:

[0020] Two L-shaped plates are fixedly connected to the rear ends of the left and right sides of the shell, and the inner walls of the plurality of L-shaped plates are threadedly connected with threaded knobs.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by starting the power fan, the extracted airflow can be filtered, so as to blow out the detection slot, and the accumulated dust is blown out by the high-pressure output airflow, thereby reducing the situation where dust blocks the detection slot and affects the operation of the alarm, and improving work efficiency.

[0023] 2. In the utility model, multiple detection slots can be closed by moving two protective plates, so that airflow is output inside the alarm, and then multiple safety air cushions can be inflated, thereby reducing external collision damage to the alarm and achieving a protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a gas alarm with a protective function proposed by the utility model;

[0025] Figure 2 This is a cross-sectional view of the shell structure of a gas alarm with a protective function proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of a protection mechanism of a gas alarm with a protection function proposed by the utility model.

[0027] Legend:

[0028] 1. Shell; 2. Protection mechanism; 201. Electric telescopic rod; 202. Connecting plate; 203. Slide; 204. Protection plate; 205. Protection air cushion; 3. Power fan; 4. Extraction pipe; 5. Filter box; 6. Adsorption sponge; 7. Filter plate; 8. Delivery pipe; 9. Multi-hole nozzle; 10. Testing equipment; 11. Testing slot; 12. Rubber ring; 13. Control switch; 14. Dust cover; 15. L-shaped plate; 16. Threaded knob. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1 and Figure 2 , the utility model provides an embodiment: a gas alarm with a protective function, comprising a shell 1, a power fan 3 is fixedly connected to the left side of the inner wall of the shell 1, the extraction end of the power fan 3 is connected to the extraction pipe 4, the bottom end of the extraction pipe 4 is connected to the filter box 5, the inner wall of the filter box 5 is fixedly connected to the adsorption sponge 6, the output end of the power fan 3 is connected to the delivery pipe 8, the front end of the delivery pipe 8 is connected to the porous nozzle 9, the top wall of the porous nozzle 9 is fixedly connected to the inner top wall of the shell 1, the front side of the inner wall of the shell 1 is fixedly connected to the detection device 10, the bottom wall of the shell 1 is equidistantly provided with a plurality of detection slots 11, the right side of the filter box 5 is fixedly connected to the left side of the shell 1, and the left and right ends of the front side of the shell 1 are both provided with a protection mechanism 2;

[0031] Specifically, the power fan 3 draws air from the outside and then passes the air through the filter box 5. The filter box 5 is equipped with a sponge with strong adsorption capacity, which can effectively absorb water vapor in the air. The airflow after adsorption by the sponge becomes dry and no longer contains excessive water vapor. Next, the dried airflow passes through the conveying pipe 8 and is delivered to the porous nozzle 9. The design of the porous nozzle 9 enables the airflow to be ejected evenly under high pressure to form a fine airflow beam. The dried airflow can effectively avoid the aging of the detection equipment 10 and extend the service life of the equipment. The dried airflow can perform high-pressure injection on multiple detection slots 11, so that the injected airflow can blow off the dust and larger particles inside the detection slot 11, so that the alarm is not troubled by dust and larger particles, thereby reducing the abnormal operation of the alarm caused by dust and larger particles blocking the detection slot 11.

[0032] Reference Figure 1 , the upper and lower sides of the housing 1 are provided with inclined surfaces; the rear ends of the left and right sides of the housing 1 are fixedly connected to two L-shaped plates 15, and the inner walls of the multiple L-shaped plates 15 are threadedly connected to threaded knobs 16;

[0033] Specifically, by providing inclined surfaces on the upper and lower sides of the housing 1 , the detection range is increased, thereby improving the detection efficiency. The L-shaped plate 15 and a plurality of threaded knobs 16 facilitate the fixing of the device.

[0034] Reference Figure 1 and Figure 3 The protection mechanism 2 includes two electric telescopic rods 201, and the adjacent sides of the two electric telescopic rods 201 are fixedly connected to the front side of the shell 1. The output ends of the two electric telescopic rods 201 are fixedly connected to the connecting plates 202. The left and right ends of the front side of the shell 1 are provided with sliding grooves 203. The rear sides of the two connecting plates 202 are respectively slidably connected to the corresponding sliding grooves 203. The bottoms of the two connecting plates 202 are fixedly connected to the protection plates 204. The upper and lower sides of the shell 1 are connected to two protection air cushions 205.

[0035] Specifically, two electric telescopic rods 201 drive the connecting plate 202 to move the connecting plate 202 and the protective plate 204 toward each other. The connecting plate 202 and the protective plate 204 move toward each other in order to realize the movement and closure of multiple detection slots 11. With the cooperation of the connecting plate 202 and the protective plate 204, the multiple detection slots 11 can be effectively closed, thereby preventing the airflow from entering the interior of the alarm from the detection slots 11. This design enables the protective device to effectively prevent external dust, moisture and other impurities from damaging the internal parts of the alarm when it is closed. Inside the protective device, multiple protective air cushions 205 are also provided. When the connecting plate 202 and the protective plate 204 move to the appropriate position, the multiple protective air cushions 205 will be inflated and opened. In this way, even when the alarm is hit by an external collision, the protective air cushion 205 can play a good buffering role, thereby reducing the impact of the collision on the alarm.

[0036] Reference Figure 1 , Figure 2 and Figure 3 A control switch 13 is fixedly connected to the front end of the left side of the housing 1, and the control switch 13 is electrically connected to the power fan 3, the detection device 10 and the electric telescopic rod 201 respectively; a plurality of filter plates 7 are fixedly connected to the left side of the filter box 5 at equal intervals, and the shape of the plurality of filter plates 7 is circular; a dust cover 14 is arranged on the left side of the housing 1, and the right side of the dust cover 14 is rotatably connected to the left side of the control switch 13 through a hinge; a rubber ring 12 is fixedly installed on the outer wall of the delivery pipe 8, and the outer wall of the rubber ring 12 is fixedly connected to the rear side of the porous nozzle 9;

[0037] Specifically, through the control switch 13 electrically connected to the power fan 3, the detection device 10 and the electric telescopic rod 201 respectively, the control switch 13 can complete the opening and closing of the device, the filter plate 7 can filter the extracted air to prevent larger particles from entering the interior of the power fan 3, the dust cover 14 can protect the control switch 13 from dust, and the multiple rubber rings 12 can protect the connection of the delivery pipe 8 and prevent wear.

[0038] Working principle: When starting to use, by starting the power fan 3, the extraction end of the power fan 3 can extract the external airflow, so that the external airflow first passes through the adsorption sponge 6 inside the filter box 5, so as to adsorb the water vapor in the air, so that the dried airflow can be ejected through the conveying pipe 8 via the porous nozzle 9 at high pressure, so that the dried airflow avoids the aging of the detection equipment 10, so that the dried airflow can clean multiple detection slots 11 everywhere, thereby reducing the situation where dust and larger particles block the detection slots 11 and affect the operation of the alarm, thereby improving the work efficiency, and by starting the two electric telescopic rods 201, the two connecting plates 202 are driven by the electric telescopic rods 201, so that the two connecting plates 202 and the protective plates 204 move towards each other, so that the multiple detection slots 11 can be moved and closed by the two protective plates 204, and then under the continuous operation of the power fan 3, the airflow flows inside the shell 1, and since the multiple detection slots 11 are closed, the multiple protective air cushions 205 can be inflated and opened, thereby reducing the collision damage of the outside world to the alarm, and achieving the protection effect.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas alarm with a protective function, comprising a housing (1), characterized in that: A power fan (3) is fixedly connected to the left side of the inner wall of the shell (1); an extraction end of the power fan (3) is connected to an extraction pipe (4); the bottom end of the extraction pipe (4) is connected to a filter box (5); an adsorption sponge (6) is fixedly connected to the inner wall of the filter box (5); an output end of the power fan (3) is connected to a delivery pipe (8); the front end of the delivery pipe (8) is connected to a porous nozzle (9); the top wall of the porous nozzle (9) is fixedly connected to the inner top wall of the shell (1); a detection device (10) is fixedly connected to the front side of the inner wall of the shell (1); a plurality of detection slots (11) are equidistantly provided on the bottom wall of the shell (1); the right side of the filter box (5) is fixedly connected to the left side of the shell (1); and protection mechanisms (2) are provided at both the left and right ends of the front side of the shell (1).

2. A gas alarm with a protective function according to claim 1, characterized in that: The protection mechanism (2) comprises two electric telescopic rods (201), the adjacent sides of the two electric telescopic rods (201) are fixedly connected to the front side of the housing (1), the output ends of the two electric telescopic rods (201) are fixedly connected to a connecting plate (202), the left and right ends of the front side of the housing (1) are provided with sliding grooves (203), the rear sides of the two connecting plates (202) are respectively slidably connected to the corresponding sliding grooves (203), the bottoms of the two connecting plates (202) are fixedly connected to a protection plate (204), and the upper and lower sides of the housing (1) are connected to two protection air cushions (205).

3. A gas alarm with a protective function according to claim 2, characterized in that: A control switch (13) is fixedly connected to the front end of the left side of the housing (1), and the control switch (13) is electrically connected to the power fan (3), the detection device (10) and the electric telescopic rod (201) respectively.

4. A gas alarm with a protective function according to claim 1, characterized in that: A plurality of filter plates (7) are fixedly connected to the left side of the filter box (5) at equal intervals, and the shape of the plurality of filter plates (7) is circular.

5. A gas alarm with a protective function according to claim 3, characterized in that: A dust cover (14) is provided on the left side of the housing (1), and the right side of the dust cover (14) is rotatably connected to the left side of the control switch (13) via a hinge.

6. A gas alarm with a protective function according to claim 1, characterized in that: A rubber ring (12) is fixedly mounted on the outer wall of the delivery pipe (8), and the outer wall of the rubber ring (12) is fixedly connected to the rear side of the porous nozzle (9).

7. A gas alarm with a protective function according to claim 1, characterized in that: The upper and lower sides of the shell (1) are both provided with inclined surfaces.

8. A gas alarm with a protective function according to claim 1, characterized in that: Two L-shaped plates (15) are fixedly connected to the rear ends of the left and right sides of the housing (1), and the inner walls of the plurality of L-shaped plates (15) are threadedly connected to threaded knobs (16).

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