Household gas alarm for gas leakage

Abstract

The utility model discloses a household gas alarm for gas leakage, which belongs to the technical field of gas alarms and comprises a mounting plate mounted on a wall, a gas alarm body is mounted on the surface of the mounting plate in a magnetic attraction manner, and a protective shell is fixedly connected to the surface of the mounting plate and positioned on the periphery of the gas alarm body. The gas alarm body is located in the protective shell, two oppositely-arranged baffles are slidably installed on the surface of the protective shell, a two-way screw is rotatably installed on one side in the protective shell, a driving piece is installed at one end of the two-way screw, and a connecting plate is fixedly connected to the tops of the baffles. The connecting plate is in threaded connection with the two-way screw rod in a sleeving manner; through the arrangement of the protective shell and the baffle plate, the gas alarm body can be isolated and protected, and oil stains cannot enter the protective shell, so that the oil stains can be prevented from being attached to the surface of the gas alarm, and when the gas alarm needs to be operated or maintained, the influence caused by the oil stains can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas alarms, and in particular relates to a household gas alarm for gas leakage. Background Art

[0002] Gas alarms are used to monitor gas leaks. The most common scenario is residents' household gas leak alarms. As people's safety awareness increases, attention to some gas leaks has increased, but gas leaks still occur from time to time. When the family does not use gas or when the family is resting at night, without safety measures, a lot of unnecessary troubles will follow. Many major accidents occur because people are not paying attention. The harm caused by gas leaks is much more serious than other gases. It may cause a fire or explosion, and the losses are immeasurable. Therefore, users who use gas usually install gas alarms indoors.

[0003] The existing Chinese patent with announcement number CN213023122U discloses a household gas alarm with a replaceable filter, which consists of five parts: a rubber plug, a filter, a front shell, a circuit board, and a rear shell; the front shell is provided with a filter mounting hole, a filter positioning foot is provided in the filter mounting hole, an arc groove is provided along the hole edge of the filter mounting hole, and the front shell is provided with a ventilation hole; the circuit board is placed on the rear shell, and when the front shell and the rear shell are closed, the gas sensor on the circuit board is located at the position corresponding to the filter mounting hole of the front shell.

[0004] With respect to the above-mentioned related technologies, the inventors found that there are at least the following problems in the technology: during the long-term use of the gas alarm, a large amount of oil stains will adhere to the surface of the gas alarm. When the gas alarm needs to be operated or maintained, the oil stains on the surface of the gas alarm will affect the operation and viewing.

[0005] For this reason, a household gas alarm for gas leakage is now proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a household gas alarm for gas leakage to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a household gas alarm for gas leaks, comprising a mounting plate installed on a wall, a gas alarm body being magnetically mounted on the surface of the mounting plate, a protective shell being fixedly connected to the surface of the mounting plate around the gas alarm body, the gas alarm body being located in the protective shell, two relatively disposed baffles being slidably mounted on the surface of the protective shell, a bidirectional screw being rotatably mounted on one side of the interior of the protective shell, a driving member being mounted on one end of the bidirectional screw, a connecting plate being fixedly connected to the top of the baffle, and the connecting plate being threadedly sleeved on the bidirectional screw.

[0008] As a preferred embodiment, an air inlet hole is opened inside the baffle, and a detachable filter is inserted into the air inlet hole.

[0009] As a preferred embodiment, the driving member includes a motor installed on the inner wall of the protective shell, a main gear installed on the output end of the motor, and a slave gear installed on the bidirectional screw, and the main gear is meshed with the slave gear.

[0010] As a preferred embodiment, a guide rod is fixedly installed on one side of the bidirectional screw rod inside the protective shell, and the connecting plate is slidably sleeved on the guide rod.

[0011] As a preferred embodiment, a sliding groove is provided on the inner side wall of the protective shell surface, and sliding bars are fixedly connected to both sides of the baffle, and the sliding bars are slidably connected to the sliding groove.

[0012] As a preferred implementation, mounting holes are provided at the four corners of the mounting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The household gas alarm for gas leakage can isolate and protect the gas alarm body by setting the protective shell and the baffle, and oil stains cannot enter the protective shell, thereby preventing oil stains from adhering to the surface of the gas alarm. When the gas alarm needs to be operated or maintained, the impact of oil stains can be reduced;

[0015] The household gas alarm for gas leakage is configured with a driving member, a bidirectional screw and a connecting plate. When the gas concentration reaches a preset value of the gas alarm and the gas alarm sounds an alarm, the driving member will start, causing the driving member to drive the bidirectional screw to rotate, causing the bidirectional screw to drive the two connecting plates to move away from each other along the bidirectional screw, causing the connecting plate to drive the baffle to slide to both sides, so that the gas alarm can sound a normal alarm and avoid the baffle from affecting the alarm of the gas alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0018] Figure 3 It is a rear cross-sectional structural schematic diagram of the utility model.

[0019] In the figure: 1. Mounting plate; 2. Gas alarm body; 3. Protective shell; 4. Baffle; 5. Bidirectional screw; 6. Driving part; 61. Motor; 62. Main gear; 63. Slave gear; 7. Connecting plate; 8. Air inlet; 81. Filter; 9. Guide rod; 10. Slide groove; 11. Slide bar; 12. Mounting hole. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] See also Figure 1-3 The utility model provides a household gas alarm for gas leakage, including a mounting plate 1 mounted on a wall, with mounting holes 12 provided at the four corners of the mounting plate 1. A gas alarm body 2 is magnetically mounted on the surface of the mounting plate 1, and the gas alarm body 2 can be a temperature sensor or a smoke sensor. A protective shell 3 is fixedly connected to the surface of the mounting plate 1 around the gas alarm body 2. The gas alarm body 2 is located in the protective shell 3, and two relatively arranged baffles 4 are slidably mounted on the surface of the protective shell 3. The gas alarm body 2 can be isolated and protected by the arrangement of the protective shell 3 and the baffle 4. Under normal circumstances, oil stains cannot enter the protective shell 3, thereby preventing oil stains from adhering to the surface of the gas alarm. When the gas alarm needs to be operated or maintained, the impact of oil stains can be reduced.

[0023] An air inlet 8 is provided inside the baffle 4, through which smoke can enter the protective shell 3. A detachable filter 81 is inserted inside the air inlet 8, and the filter 81 can filter oil particles to prevent oil from entering the air inlet 8. A bidirectional screw 5 is rotatably installed on one side of the protective shell 3, and a driving member 6 is installed at one end of the bidirectional screw 5. A connecting plate 7 is fixedly connected to the top of the baffle 4, and the connecting plate 7 is threadedly sleeved on the bidirectional screw 5. Through the arrangement of the driving member 6, the bidirectional screw 5 and the connecting plate 7, When the gas concentration reaches the preset value of the gas alarm and the gas alarm sounds, the driving member 6 will start, causing the driving member 6 to drive the bidirectional screw 5 to rotate, causing the bidirectional screw 5 to drive the two connecting plates 7 to move away from each other along the bidirectional screw 5, causing the connecting plates 7 to drive the baffle 4 to slide to both sides, so that the gas alarm can sound a normal alarm and avoid the baffle 4 from affecting the alarm of the gas alarm; in addition, when the gas alarm needs to be operated or maintained, the baffle 4 can be opened electrically to reduce the contact between people and the baffle 4.

[0024] The driving member 6 includes a motor 61 installed on the inner wall of the protective shell 3, a main gear 62 installed at the output end of the motor 61, and a slave gear 63 installed on the bidirectional screw 5. The main gear 62 is meshed with the slave gear 63. Through the setting of the motor 61, the main gear 62 and the slave gear 63, the motor 61 can be started to drive the main gear 62 to rotate, so that the main gear 62 drives the slave gear 63 to rotate, and the slave gear 63 drives the bidirectional screw 5 to rotate. The switch of the motor 61 is electrically connected to the gas alarm body 2. When the gas alarm body 2 senses a certain gas concentration, the motor 61 will start. It should be noted that the preset value of the gas concentration here is lower than the explosion critical value of the gas concentration, and no explosion will occur due to the starting of the motor 61.

[0025] A guide rod 9 is fixedly installed on one side of the bidirectional screw 5 inside the protective shell 3, and the connecting plate 7 is slidably sleeved on the guide rod 9. The setting of the guide rod 9 can guide the connecting plate 7. A sliding groove 10 is provided on the inner wall of the surface of the protective shell 3, and a sliding bar 11 is fixedly connected to both sides of the baffle 4. The sliding bar 11 is slidably connected to the sliding groove 10. Through the cooperation of the sliding groove 10 and the sliding bar 11, the baffle 4 can be slidably limited.

[0026] The working principle and use process of the utility model: First, through the setting of the protective shell 3 and the baffle 4, the gas alarm body 2 can be isolated and protected. Under normal circumstances, oil stains cannot enter the protective shell 3, thereby preventing oil stains from adhering to the surface of the gas alarm. When the gas alarm needs to be operated or maintained, the impact of oil stains can be reduced; through the setting of the driving member 6, the bidirectional screw 5 and the connecting plate 7, when the gas concentration reaches the preset value of the gas alarm and the gas alarm is alarmed, the driving member 6 will start, so that the driving member 6 drives the bidirectional screw 5 to rotate, so that the bidirectional screw 5 drives the two connecting plates 7 to move away from each other along the bidirectional screw 5, and the connecting plate 7 drives the baffle 4 to slide to both sides, so that the gas alarm can be normally alarmed, and the baffle 4 is prevented from affecting the alarm of the gas alarm.

[0027] 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 household gas alarm for gas leakage, comprising a mounting plate (1) mounted on a wall, characterized in that: The surface of the mounting plate (1) is magnetically mounted with a gas alarm body (2); the surface of the mounting plate (1) is fixedly connected with a protective shell (3) located around the gas alarm body (2); the gas alarm body (2) is located in the protective shell (3); the surface of the protective shell (3) is slidably mounted with two oppositely arranged baffles (4); a bidirectional screw (5) is rotatably mounted on one side of the interior of the protective shell (3); a driving member (6) is mounted on one end of the bidirectional screw (5); a connecting plate (7) is fixedly connected to the top of the baffle (4); the connecting plate (7) is threadedly sleeved on the bidirectional screw (5).

2. A household gas alarm for gas leakage according to claim 1, characterized in that: An air inlet hole (8) is provided inside the baffle (4), and a detachable filter screen (81) is inserted into the air inlet hole (8).

3. A household gas alarm for gas leakage according to claim 1, characterized in that: The driving member (6) comprises a motor (61) mounted on the inner side wall of the protective shell (3), a main gear (62) mounted on the output end of the motor (61), and a slave gear (63) mounted on the bidirectional screw (5), wherein the main gear (62) meshes with the slave gear (63).

4. A household gas alarm for gas leakage according to claim 1, characterized in that: A guide rod (9) is fixedly mounted on one side of the bidirectional screw rod (5) inside the protective shell (3), and the connecting plate (7) is slidably sleeved on the guide rod (9).

5. A household gas alarm for gas leakage according to claim 1, characterized in that: A sliding groove (10) is provided on the inner side wall of the surface of the protective shell (3), and sliding bars (11) are fixedly connected to both sides of the baffle (4), and the sliding bars (11) are slidably connected to the sliding groove (10).

6. A household gas alarm for gas leakage according to claim 1, characterized in that: The four corners of the mounting plate (1) are each provided with mounting holes (12).

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