Gas meter leakage self-checking device

Abstract

The utility model discloses a gas meter leakage self-checking device which comprises an upper convex type hollow half shell and a lower convex type hollow half shell arranged at the position of an opening in the bottom end of the upper convex type hollow half shell, and hoop connectors are arranged on the left inner wall and the right inner wall of the upper convex type hollow half shell and the left inner wall and the right inner wall of the lower convex type hollow half shell respectively. The hoop connector is used for enabling the upper convex hollow half shell and the lower convex hollow half shell to form a complete shell structure, and a positioning bolt used for locking the hoop connector is installed at the corner position of the top end of the upper convex hollow half shell. According to the utility model, the gas meter is completely wrapped between the upper convex hollow half shell and the lower convex hollow half shell, the actual detection space is greatly reduced, the smaller space means that natural gas can reach a sensor of an alarm more quickly when leaking, and the design can effectively reduce alarm delay caused by overlarge space, so that the detection efficiency is improved. Therefore, the alarm can quickly give an alarm before the gas concentration reaches a dangerous level.

Description

Technical Field

[0001] This utility model relates to the field of gas meter technology, specifically a gas meter leak self-testing device. Background Technology

[0002] Natural gas alarms are essential kitchen safety devices. They can be used for self-checking gas meter leaks. Their main function is to detect natural gas leaks and sound an alarm when the leak concentration reaches a certain level, reminding users to take timely measures to prevent dangerous accidents such as fires and explosions. Natural gas alarms can detect natural gas components in the air, such as methane, and warn users through sound and light signals when a leak is detected. Because natural gas is flammable and explosive, the alarm's role is particularly important, providing early warning before an accident occurs and reducing the risk of disaster. When installing a natural gas alarm for self-checking gas meter leaks, the first step is to choose an appropriate location, typically in the cabinet where the gas meter is located. The gas alarm should be placed 15-30 cm away from the gas meter within the cabinet compartment, as natural gas is lighter than air and tends to accumulate at the top. It should also be kept away from heat sources such as stoves to prevent high temperatures from affecting its normal operation and from humid environments to avoid moisture damaging its sensitivity. Screws or adhesive fasteners can be used for fixing, ensuring the power connection is correct. However, because the cabinet compartment containing the gas meter is still relatively large, the gas alarm will need to wait for a period of time after a leak before detecting and triggering an alarm, allowing users to mistakenly believe that the absence of an alarm means safety. This prevents timely detection of danger. Utility Model Content

[0003] The purpose of this utility model is to provide a gas meter leak self-detection device. The upper convex hollow half-shell and the lower convex hollow half-shell are installed on the gas pipe where the gas meter is located through a clamp connector. The upper convex hollow half-shell and the lower convex hollow half-shell completely cover the gas meter. At this time, the natural gas alarm can detect the gas meter leak within the shell space, avoiding the alarm delay caused by the excessive space where the gas meter is located, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gas meter leakage self-testing device, comprising an upper convex hollow half-shell and a lower convex hollow half-shell with an opening at the bottom end of the upper convex hollow half-shell. Clamping connectors are provided on the left and right inner walls of both the upper and lower convex hollow half-shells. The clamping connectors are used to make the upper and lower convex hollow half-shells form a complete shell structure. Positioning bolts for locking the clamping connectors are installed at the corners of the top of the upper convex hollow half-shell. A natural gas alarm is installed on the top of the upper convex hollow half-shell, and the power cord and plug of the natural gas alarm pass through the top of the upper convex hollow half-shell.

[0005] Preferably, the upper convex hollow half-shell and the lower convex hollow half-shell are provided with pipe holes on their left and right outer walls that are the same as the outer diameter of the gas pipeline.

[0006] Preferably, the upper convex hollow half-shell and the lower convex hollow half-shell are made of hard plastic components.

[0007] Preferably, the upper convex hollow half-shell and the lower convex hollow half-shell are connected by a clamp connector to form a shell structure, and the interior of the shell structure is provided with a cavity for accommodating the gas meter.

[0008] Preferably, the clamp connector includes a first clamping ring fixed on the left and right inner walls of the upper convex hollow half shell, a second clamping ring fixed on the left and right inner walls of the lower convex hollow half shell, and upper edge feet fixed on both sides of the top of the first clamping ring, and lower edge feet fixed on both sides of the bottom of the second clamping ring.

[0009] Preferably, the upper and lower foot seats are provided with internal threaded holes, and the bottom end of the positioning bolt extends into the upper and lower foot seats and is screwed into the internal threaded holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by completely enclosing the gas meter between the upper and lower convex hollow half shells, the actual detection space is greatly reduced. The smaller space means that when natural gas leaks, it can reach the sensor of the alarm more quickly. This design can effectively reduce the alarm delay caused by excessive space, so that the alarm can quickly sound an alarm before the gas concentration reaches a dangerous level, thereby providing users with more timely safety protection.

[0011] Furthermore, due to the design of the upper convex hollow half-shell and the lower convex hollow half-shell, the concentration change of gas inside the shell after a natural gas leak will be more obvious and rapid. Compared with an open environment, the enclosed space can better gather and retain gas, thereby improving the sensitivity of the alarm to natural gas. This enhanced sensitivity can ensure that the alarm can detect the danger signal in time in the early stage of gas leakage, reduce potential safety hazards, and can isolate external environmental interference to a certain extent, ensuring the working stability of the alarm. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the present invention. Figure 1 ;

[0016] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the present invention. Figure 2 .

[0017] In the diagram: 1. Upper convex hollow half-shell; 2. Lower convex hollow half-shell; 3. Clamp connector; 301. First clamping ring; 302. Second clamping ring; 303. Upper edge foot; 304. Lower edge foot; 305. Internal threaded hole; 4. Positioning bolt; 5. Natural gas alarm; 6. Cavity. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figure 1-5An embodiment of this utility model provides a gas meter leakage self-testing device, including an upper convex hollow half-shell 1 and a lower convex hollow half-shell 2 provided at the bottom opening of the upper convex hollow half-shell 1. Clamping connectors 3 are provided on the left and right inner walls of both the upper convex hollow half-shell 1 and the lower convex hollow half-shell 2. The clamping connectors 3 are used to make the upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 form a complete shell structure. Positioning bolts 4 for locking the clamping connectors 3 are installed at the corner of the top of the upper convex hollow half-shell 1. A natural gas alarm 5 is installed on the top of the upper convex hollow half-shell 1, and the power cord and plug of the natural gas alarm 5 pass through the top of the upper convex hollow half-shell 1.

[0020] The upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 are provided with pipe holes with the same outer diameter as the gas pipeline on their left and right outer walls. The upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 are made of hard plastic components.

[0021] The upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 are connected by a clamp connector 3 to form a shell structure. The shell structure has a cavity 6 inside for accommodating the gas meter. The cavity 6 is formed after the upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 are connected by the clamp connector 3, so as to reserve space for the gas meter.

[0022] The clamp connector 3 includes a first clamping ring 301 fixed on the left and right inner walls of the upper convex hollow half shell 1, a second clamping ring 302 fixed on the left and right inner walls of the lower convex hollow half shell 2, and upper edge feet 303 fixed on both sides of the top of the first clamping ring 301. Lower edge feet 304 are fixed on both sides of the bottom of the second clamping ring 302. The upper edge feet 303 and the lower edge feet 304 are provided with internal threaded holes 305. The bottom end of the positioning bolt 4 extends into the upper edge feet 303 and the lower edge feet 304 and is screwed into the internal threaded holes 305.

[0023] After the upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 are joined together to form a complete shell structure, the first retaining ring 301 and the second retaining ring 302 are joined together. At this time, the workers will screw the positioning bolts 4 into the upper edge foot 303 and the lower edge foot 304 from the top of the upper convex hollow half-shell 1 until the positioning bolts 4 are screwed into the internal threaded hole 305. At this time, the first retaining ring 301 and the second retaining ring 302 are connected, thereby ensuring that the shell can be fixed and stable during the installation process and avoiding loosening of the shell due to vibration, external force and other factors.

[0024] In this embodiment, the design of the upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 is suitable for the standard gas meter installation environment. The gas meter is connected to the gas pipeline according to the normal pipeline connection method. The upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 are each designed as shell structures that conform to the shape of the gas meter. Then, the upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 cover the gas meter and are connected to the gas pipeline, so that the upper convex hollow half-shell 1 and the lower convex hollow half-shell 2 are fixed together by the clamp connector 3 and the positioning bolt 4, forming a relatively closed shell. During this process, the clamp connector 3 and the positioning bolt 4 help to tightly fix the upper convex hollow half-shell 1 and the lower convex hollow half-shell 2, so that there is no looseness between the two half-shells, achieving the purpose of completely covering the gas meter. At this time, the upper convex The natural gas alarm 5, located on top of the hollow half-shell 1, is situated above the gas meter. The power cord of the natural gas alarm 5 is plugged into a power outlet in the cabinet compartment and ensured to operate normally. This guarantees a rapid response and alarm in the initial stages of a natural gas leak. Due to the convex upper hollow half-shell 1 and convex lower hollow half-shell 2 design, leaked natural gas from the gas meter quickly accumulates in a small space. The sensor inside the natural gas alarm 5 can monitor changes in gas concentration inside the casing in real time. When the concentration exceeds the alarm's set threshold, the alarm will immediately trigger an alarm signal. During this process, because the enclosed space is small, the gas concentration rapidly rises to dangerous levels after the leak, effectively reducing alarm delays caused by excessive space and ensuring timely alarm issuance to protect user safety.

Claims

1. A gas meter leakage self-testing device, characterized in that: The device includes an upper convex hollow half-shell (1) and a lower convex hollow half-shell (2) located at the bottom opening of the upper convex hollow half-shell (1). Both the upper convex hollow half-shell (1) and the lower convex hollow half-shell (2) are provided with clamp connectors (3) on their left and right inner walls. The clamp connectors (3) are used to make the upper convex hollow half-shell (1) and the lower convex hollow half-shell (2) form a complete shell structure. The upper convex hollow half-shell (1) is provided with positioning bolts (4) for locking the clamp connectors (3) at the corner of its top. The upper convex hollow half-shell (1) is provided with a natural gas alarm (5). The power cord and plug of the natural gas alarm (5) pass through the top of the upper convex hollow half-shell (1).

2. The gas meter leakage self-testing device according to claim 1, characterized in that: The upper convex hollow half-shell (1) and the lower convex hollow half-shell (2) are provided with pipe holes on their left and right outer walls that are the same as the outer diameter of the gas pipeline.

3. The gas meter leakage self-testing device according to claim 1, characterized in that: The upper convex hollow half-shell (1) and the lower convex hollow half-shell (2) are made of hard plastic components.

4. The gas meter leakage self-testing device according to claim 1, characterized in that: The upper convex hollow half-shell (1) and the lower convex hollow half-shell (2) are connected by a clamp connector (3) to form a shell structure. The shell structure has a cavity (6) for accommodating the gas meter.

5. A gas meter leakage self-testing device according to claim 1, characterized in that: The clamp connector (3) includes a first clamping ring (301) fixed on the left and right inner walls of the upper convex hollow half shell (1), a second clamping ring (302) fixed on the left and right inner walls of the lower convex hollow half shell (2), and upper edge feet (303) fixed on both sides of the top of the first clamping ring (301). Lower edge feet (304) are fixed on both sides of the bottom of the second clamping ring (302).

6. A gas meter leakage self-testing device according to claim 5, characterized in that: The upper edge foot (303) and lower edge foot (304) are provided with internal threaded holes (305), and the bottom end of the positioning bolt (4) extends into the upper edge foot (303) and lower edge foot (304) and is screwed into the internal threaded holes (305).

Images