Gas alarm with cut-off device

Abstract

The utility model relates to the technical field of gas alarms, in particular to a gas alarm with a cut-off device, which comprises an alarm body and an electromagnetic valve, the alarm body is electrically connected with the electromagnetic valve, a gas inlet is arranged on the surface of the alarm body, and a dustproof mechanism is arranged at the gas inlet. According to the utility model, through the dustproof net plate of the dustproof mechanism, particle dust and fluff in the air are effectively filtered to enter the alarm body through the air inlet, and the dust is prevented from being accumulated on the surface of the gas sensor in the alarm body, so that the high sensitivity and the detection accuracy of the sensor are kept for a long time; and meanwhile, by pressing a first pressing plate and a second pressing plate, a first clamping plate and a second clamping plate slide in a clamping block and extrude a spring, so that fixation of the dustproof net plate is relieved, and the dustproof net plate is convenient to disassemble and clean in the later period. And the disassembly and assembly convenience and the working efficiency of the dustproof net plate are improved.

Description

Technical Field

[0001] This utility model relates to the field of gas alarm technology, and in particular to a gas alarm with a shut-off device. Background Technology

[0002] Gas alarms play a vital role in preventing gas leaks in daily life and industrial settings.

[0003] However, existing gas alarms have some shortcomings in actual use. On the one hand, most of them lack effective dust prevention measures. Since they are usually installed in relatively complex and dusty environments such as kitchens and factories, after long-term use, dust can easily enter the alarm through the air inlet and other parts, accumulating on the surface of the gas sensor or other key components. This can affect the sensitivity and accuracy of the sensor in detecting gas concentration, and may even lead to false alarms or malfunction of the alarm. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a gas alarm with a shut-off device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gas alarm with a shut-off device, comprising an alarm body and a solenoid valve, wherein the alarm body is electrically connected to the solenoid valve, an air inlet is provided on the surface of the alarm body, and a dustproof mechanism is provided at the air inlet.

[0006] The dustproof mechanism includes a dustproof mesh plate, a locking block is fixedly connected to the surface of the dustproof mesh plate, a locking plate one and a locking plate two are slidably connected inside the locking block, a spring is fixedly connected between the locking plate one and the locking plate two, a pressure plate one is fixedly connected to the surface of the locking plate one, a pressure plate two is fixedly connected to the surface of the locking plate two, and a locking groove is opened on the surface of the alarm body, with the locking plate one and the locking plate two locked inside the locking groove.

[0007] Preferably, there are two sets of the first type of card plate, which are symmetrically distributed on both sides of the middle part of the surface of the dustproof mesh plate. There are also two sets of the second type of card plate, which are symmetrically distributed on both sides of the middle part of the surface of the dustproof mesh plate.

[0008] Preferably, the first pressure plate and the second pressure plate have the same structure, and both the first pressure plate and the second pressure plate have an L-shaped structure.

[0009] Preferably, the back of the alarm body is provided with double-sided adhesive tape, which is symmetrically distributed on both sides of the middle part of the surface of the alarm body.

[0010] Preferably, a sealing gasket is fixedly connected to the surface of the dustproof mesh plate, and the sealing gasket is located between the surface of the dustproof mesh plate and the surface of the alarm body.

[0011] Preferably, the surface of the alarm body is provided with a slot, a magnet is fixedly connected inside the slot, and a rod is fixedly connected to the surface of the dustproof mesh plate. The rod is inserted into the slot and magnetically connected to the magnet.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the dustproof mesh plate of the dustproof mechanism effectively filters out particulate dust and lint from the air, preventing them from entering the interior of the alarm body through the air inlet. This avoids dust accumulation on the surface of the gas sensor inside the alarm body, thus maintaining the sensor's high sensitivity and detection accuracy over a long period and reducing false alarms and failures caused by dust and lint interference. At the same time, by pressing the first and second pressure plates, the first and second clamping plates slide inside the clamping block and compress the spring, thereby releasing the fixation of the dustproof mesh plate. This facilitates the subsequent disassembly and cleaning of the dustproof mesh plate, improving the convenience and efficiency of dustproof mesh plate assembly and disassembly.

[0014] 2. In this utility model, by inserting the plug into the inside of the slot and magnetically attracting it together with the magnet, the fit between the edge of the dustproof mesh plate and the surface of the alarm body is further improved, the sealing effect of the sealing gasket is further improved, and the warping of corners caused by repeated disassembly can also be avoided. Attached Figure Description

[0015] Figure 1 This utility model provides a schematic diagram of a gas alarm with a shut-off device;

[0016] Figure 2 A rear view of a gas alarm with a shut-off device is provided for this utility model;

[0017] Figure 3 An exploded view of a gas alarm with a shut-off device is provided for this utility model.

[0018] Figure 4 This invention provides a partially exploded view of a gas alarm with a shut-off device.

[0019] Legend:

[0020] 1. Alarm body; 2. Solenoid valve; 3. Air inlet; 4. Dustproof mechanism; 401. Dustproof mesh plate; 402. Locking block; 403. Locking plate one; 404. Spring; 405. Locking plate two; 406. Pressure plate one; 407. Pressure plate two; 5. Locking groove; 6. Slot; 7. Magnet; 8. Sealing gasket; 9. Insert rod; 10. Double-sided adhesive tape. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a gas alarm with a shut-off device, including an alarm body 1 and a solenoid valve 2. The alarm body 1 is electrically connected to the solenoid valve 2. An air inlet 3 is provided on the surface of the alarm body 1, and a dustproof mechanism 4 is provided at the air inlet 3.

[0024] The dustproof mechanism 4 includes a dustproof mesh plate 401. A locking block 402 is fixedly connected to the surface of the dustproof mesh plate 401. A locking plate 403 and a locking plate 405 are slidably connected inside the locking block 402. A spring 404 is fixedly connected between the locking plate 403 and the locking plate 405. A pressure plate 406 is fixedly connected to the surface of the locking plate 403, and a pressure plate 407 is fixedly connected to the surface of the locking plate 405. A slot 5 is formed on the surface of the alarm body 1. The locking plates 403 and 405 are engaged inside the slot 5. There are two sets of locking plates 403. The two sets of locking plates 403 are used for dustproofing. The mesh plate 401 has two sets of clamping plates 405 symmetrically distributed on both sides of the center of the surface. The clamping plates 405 are symmetrically distributed on both sides of the center of the surface of the dustproof mesh plate 401. The pressure plates 406 and 407 have the same structure and are both L-shaped. The back of the alarm body 1 is provided with double-sided adhesive tape 10, which is symmetrically distributed on both sides of the center of the surface of the alarm body 1. A sealing gasket 8 is fixedly connected to the surface of the dustproof mesh plate 401, and the sealing gasket 8 is located between the surface of the dustproof mesh plate 401 and the surface of the alarm body 1.

[0025] In this embodiment, the dustproof mesh plate 401 of the dustproof mechanism 4 effectively filters out particulate dust and lint from the air, preventing them from entering the interior of the alarm body 1 through the air inlet 3. This prevents dust from accumulating on the surface of the gas sensor inside the alarm body 1, thus maintaining the sensor's high sensitivity and detection accuracy over a long period and reducing false alarms and malfunctions caused by dust and lint interference. Simultaneously, pressing the pressure plate 406 and the pressure plate 407 causes the locking plates 403 and 405 to slide inside the locking block 402 and compress the spring 404, thereby releasing the fixation of the dustproof mesh plate 401. This facilitates the subsequent disassembly and cleaning of the dustproof mesh plate 401, improving efficiency. The dustproof mesh 401 is easy to install and remove, and the work efficiency is improved. When disassembling and cleaning the dustproof mesh 401, the L-shaped pressure plate 406 and pressure plate 407 increase the resistance between the fingers and the pressure plate 406 and pressure plate 407 when pulling the dustproof mesh 401 outward, preventing slippage due to sweaty or wet fingers. The sealing gasket 8 between the dustproof mesh 401 and the air inlet 3 improves the sealing effect between the dustproof mesh 401 and the surface of the alarm body 1, preventing gaps. The double-sided adhesive tape 10 on the back of the alarm body 1 allows for quick installation and fixation.

[0026] Example 2: Figure 3 - Figure 4 As shown, the surface of the alarm body 1 has a slot 6, and a magnet 7 is fixedly connected inside the slot 6. A rod 9 is fixedly connected to the surface of the dustproof mesh plate 401. The rod 9 is inserted into the slot 6 and magnetically connected to the magnet 7.

[0027] In this embodiment, by inserting the rod 9 into the slot 6 and magnetically attracting it with the magnet 7, the fit between the edge of the dustproof mesh plate 401 and the surface of the alarm body 1 is further improved, the sealing effect of the sealing gasket 8 is further improved, and the warping of corners due to repeated disassembly can also be avoided.

[0028] The working principle of this embodiment is as follows: First, connect the solenoid valve 2 to the gas pipeline. Install the alarm body 1 in a suitable location near the gas pipeline or above the gas appliance in a home kitchen, ensuring there are no obstructions around the air inlet 3 of the detection module and that it has sufficient contact with air. Secure the alarm body 1 to the wall using the double-sided adhesive tape 10 on the back. Then, insert the power cord plug of the alarm body 1 into the socket. During daily use, the gas sensor of the detection module inside the alarm body 1 continuously draws in gas through the air inlet 3 equipped with a dustproof mechanism 4. Air, after being filtered, enters the sensor, effectively filtering out particulate matter, dust, and lint. This prevents dust accumulation on the surface of the gas sensor within the alarm body 1, thus maintaining the sensor's high sensitivity and detection accuracy over the long term and reducing false alarms and malfunctions caused by dust and lint interference. The sensor monitors the concentration of gas in the air in real time and transmits the detection signal to the control module inside the alarm body 1. The control module judges based on preset programs and parameters. When the gas concentration does not reach the alarm threshold, the alarm remains in standby mode. During normal operation, the indicator light shows the normal monitoring status. When the concentration of gas in the air reaches or exceeds the preset alarm threshold, the detection module transmits a signal to the control module. The control module immediately drives the alarm module to issue an audible and visual alarm signal, and simultaneously controls the solenoid valve 2 to close its valve core. When it is necessary to disassemble and clean the dustproof mesh 401, press the pressure plate 406 and the pressure plate 407 to make the clamping plates 403 and 405 slide inside the clamping block 402 and squeeze the spring 404. Then, the dustproof mesh 401 can be removed. This process releases the fixation of the dustproof mesh 401, facilitating subsequent cleaning and maintenance. The purpose of disassembling and cleaning the dust filter plate 401 is to improve the convenience and efficiency of disassembly and assembly. The sealing gasket 8 between the dust filter plate 401 and the air inlet 3 can improve the sealing effect between the dust filter plate 401 and the surface of the alarm body 1 to prevent gaps from forming. When installing the dust filter plate 401 on the alarm body 1, the insert rod 9 is inserted into the slot 6 and magnetically attracted to the magnet 7, which further improves the fit between the edge of the dust filter plate 401 and the surface of the alarm body 1, further improves the sealing effect of the sealing gasket 8, and can also avoid the occurrence of warping due to repeated disassembly.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A gas alarm with a shut-off device, comprising an alarm body (1) and a solenoid valve (2), characterized in that: The alarm body (1) is electrically connected to the solenoid valve (2). An air inlet (3) is provided on the surface of the alarm body (1), and a dustproof mechanism (4) is provided at the air inlet (3). The dustproof mechanism (4) includes a dustproof mesh plate (401), a locking block (402) is fixedly connected to the surface of the dustproof mesh plate (401), a locking plate one (403) and a locking plate two (405) are slidably connected inside the locking block (402), a spring (404) is fixedly connected between the locking plate one (403) and the locking plate two (405), a pressure plate one (406) is fixedly connected to the surface of the locking plate one (403), a pressure plate two (407) is fixedly connected to the surface of the locking plate two (405), and a slot (5) is opened on the surface of the alarm body (1), and the locking plate one (403) and the locking plate two (405) are locked inside the slot (5); A sealing gasket (8) is fixedly connected to the surface of the dustproof mesh plate (401). The sealing gasket (8) is located between the surface of the dustproof mesh plate (401) and the surface of the alarm body (1). A slot (6) is opened on the surface of the alarm body (1). A magnet (7) is fixedly connected inside the slot (6). A plug (9) is fixedly connected to the surface of the dustproof mesh plate (401). The plug (9) is inserted into the slot (6) and magnetically connected to the magnet (7).

2. The gas alarm with a shut-off device according to claim 1, characterized in that: There are two sets of the first type of card plate (403), and the two sets of the first type of card plate (403) are symmetrically distributed on both sides of the middle part of the surface of the dustproof mesh plate (401). There are two sets of the second type of card plate (405), and the two sets of the second type of card plate (405) are symmetrically distributed on both sides of the middle part of the surface of the dustproof mesh plate (401).

3. The gas alarm with a shut-off device according to claim 1, characterized in that: The first pressure plate (406) and the second pressure plate (407) have the same structure, and both the first pressure plate (406) and the second pressure plate (407) are L-shaped structures.

4. The gas alarm with a shut-off device according to claim 1, characterized in that: The back of the alarm body (1) is provided with double-sided adhesive tape (10), which is symmetrically distributed on both sides of the middle part of the surface of the alarm body (1).

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