Gas leakage alarm device for gas meter pipeline

Abstract

The utility model discloses a gas leakage alarm device for a gas meter pipeline, which belongs to the technical field of gas alarm and comprises a sealing sleeve mounted on a gas meter body, the first end of the sealing sleeve is hermetically connected with a gas pipe on the gas meter body, and the second end of the sealing sleeve is hermetically connected with the gas pipeline. A cavity is formed in the sealing sleeve, a gas leakage opening communicated with the cavity is fixedly formed in the sealing sleeve, a detection rod is installed in the gas leakage opening in a limiting and sliding mode, a gap is formed between the detection rod and the cavity, and a detection block is installed on the gas meter body; the detection block is provided with a proximity switch corresponding to the detection rod and a buzzer alarm in signal connection with the proximity switch. According to the gas leakage alarm device, the gas leakage alarm function at the joint of the gas pipe and the gas pipeline can be achieved, and gas leakage is avoided by arranging the sealing sleeve.

Description

Technical Field

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

[0002] A gas meter is a common instrument used to record gas usage data, providing a more intuitive understanding of specific gas usage. Currently, when connecting a common diaphragm gas meter to a pipeline, threads are typically placed on the outside of the meter's interface, and the pipeline is then screwed onto the outside of the interface. Due to the simple connection method between the pipeline and the interface during installation, a gap may be left between the two, causing gas leaks and increasing safety risks.

[0003] Prior art, such as Chinese Patent Publication No. CN219104091U, discloses a leak-proof diaphragm gas meter. This meter incorporates a protective mechanism to prevent gas leakage from the connection between the connecting pipe and the gas pipeline. While this technology prevents gas leakage, it lacks a gas leak alarm, making it unclear whether a leak has occurred at the connection between the connecting pipe and the gas pipeline.

[0004] Therefore, it is necessary to propose a gas leakage alarm device for a gas meter pipeline to solve the above problems. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a gas leakage alarm device for a gas meter pipeline, which is used to solve the problem in the prior art that the connection between the connecting pipeline and the gas pipeline does not have a gas leakage alarm function.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0007] The utility model provides a gas leakage alarm device for a gas meter pipeline, comprising a sealing sleeve installed on a gas meter body, a first end of the sealing sleeve being sealedly connected to a gas pipe on the gas meter body, a second end of the sealing sleeve being sealedly connected to a gas pipeline, a cavity being provided in the sealing sleeve, a gas leakage port being fixedly provided on the sealing sleeve and communicating with the cavity, a detection rod being limitedly slidably installed in the gas leakage port, a distance being provided between the detection rod and the cavity, a detection block being installed on the gas meter body, a proximity switch corresponding to the detection rod and a buzzer alarm connected to a signal of the proximity switch being installed on the detection block.

[0008] Furthermore, the detection block is arranged between two gas pipes on the gas meter body, and a proximity switch is installed on the detection block near the gas pipe side, and each proximity switch signal is connected to a buzzer alarm.

[0009] Furthermore, a limiting chamber is provided in the air leakage port, a limiting block is slidably connected in the limiting chamber, the limiting block is fixedly connected to the detection rod, and a spring is fixedly connected between the limiting block and the side wall of the limiting chamber.

[0010] Furthermore, the sealing sleeve is composed of a first mounting block and a second mounting block, and both ends of the first mounting block and the second mounting block are respectively provided with semicircular sealing rings that cooperate with the air pipe and the gas pipeline, and the air leakage port is arranged on the second mounting block close to the detection block.

[0011] Furthermore, the first mounting block and the second mounting block are fixedly connected via a locking plate. The first mounting block and the second mounting block are both provided with locking grooves near the end sides, and the locking plate is provided with a connecting portion that cooperates with adjacent locking grooves.

[0012] Furthermore, the locking groove is provided through the sealing sleeve along the axial direction of the sealing sleeve.

[0013] The beneficial effects of the present utility model are:

[0014] The utility model can realize the gas leakage alarm function at the connection between the gas pipe and the gas pipeline, and prevent gas leakage by arranging a sealing sleeve.

[0015] Other advantages, objectives, and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or they may be taught by those skilled in the art from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention is described with the following drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 For the embodiment of the utility model Figure 1 Enlarged view of the part A in the middle;

[0019] Figure 3 This is an exploded view of the installation of the sealing sleeve according to an embodiment of the present invention.

[0020] The markings in the accompanying drawings are as follows: gas meter body 1, gas pipe 101, sealing sleeve 2, cavity 201, gas leakage port 202, detection rod 203, limit chamber 204, limit block 205, spring 206, first mounting block 207, second mounting block 208, sealing ring 209, lock groove 210, locking plate 211, connecting part 212, gas pipeline 3, detection block 4, proximity switch 401, buzzer alarm 402. DETAILED DESCRIPTION

[0021] like Figures 1 to 3 As shown, the utility model provides a gas leakage alarm device for a gas meter pipeline, comprising a sealing sleeve 2 installed on a gas meter body 1, wherein a first end of the sealing sleeve 2 is sealedly connected to a gas pipe 101 on the gas meter body 1, and a second end of the sealing sleeve 2 is sealedly connected to a gas pipeline 3, a cavity 201 is provided in the sealing sleeve 2, a gas leakage port 202 connected to the cavity 201 is fixedly provided on the sealing sleeve 2, a detection rod 203 is slidingly installed in the gas leakage port 202, and a distance is provided between the detection rod 203 and the cavity 201, a detection block 4 is installed on the gas meter body 1, and a proximity switch 401 corresponding to the detection rod 203 and a buzzer alarm 402 connected to the signal of the proximity switch 401 are installed on the detection block 4.

[0022] In this solution, the gas pipe 101 includes an air inlet pipe and an air outlet pipe. In the initial state when no gas leakage occurs, the detection rod 203 is arranged in the air leakage buckle 202, and the detection rod 203 does not extend into the cavity 201. When leakage occurs at the connection between the gas pipe 101 and the gas pipeline 3, the leaked gas enters the air leakage port 202 through the cavity 201, driving the detection rod 203 to move out of the air leakage buckle 202. After the detection rod 203 moves out, it hits the proximity switch 401, and the proximity switch 401 transmits an electrical signal to the buzzer alarm 402 to realize the alarm function.

[0023] Through the design of the above structure, this solution can realize the gas leakage alarm function at the connection between the gas pipe 101 and the gas pipeline 3, and prevent gas leakage by providing the sealing sleeve 2.

[0024] In one embodiment of the present invention, the detection block 4 is arranged between two gas pipes 101 on the gas meter body 1. The detection block 4 is installed with a proximity switch 401 on the side close to the gas pipe 101. Each proximity switch 401 is connected to a buzzer alarm 402.

[0025] In this solution, when the air inlet pipe and the air outlet pipe leak, alarms can be sounded separately, so that it is easy to identify whether the air inlet pipe or the air outlet pipe is leaking.

[0026] In one embodiment of the present invention, a limiting chamber 204 is provided in the air leakage port 202, a limiting block 205 is slidably connected in the limiting chamber 204, the limiting block 205 is fixedly connected to the detection rod 203, and a spring 206 is fixedly connected between the limiting block 205 and the side wall of the limiting chamber 204.

[0027] In this solution, in the initial state where no gas leakage occurs, the limit block 205, under the action of the spring 206, abuts against the limit chamber 204 on the side away from the detection block 4, and the detection rod 203 does not move out of the leakage port 202; after the gas leaks, under the action of the gas pressure, the detection rod 203 is driven to move toward the side close to the proximity switch 401, thereby realizing the alarm function.

[0028] This solution sets a limit block 205 to limit the detection rod 203 to be installed in the gas leakage port 202, thereby preventing the detection rod 203 from sliding out of the gas leakage port 202 as a whole; and sets a spring 206 to ensure that when there is no gas leakage, the detection rod 203 will not easily slide and hit the proximity switch 401, thereby avoiding false alarms.

[0029] In one embodiment of the present invention, the sealing sleeve 2 is composed of a first mounting block 207 and a second mounting block 208, and both ends of the first mounting block 207 and the second mounting block 208 are respectively provided with a semicircular sealing ring 209 that cooperates with the air pipe 101 and the gas pipeline 3, and the air leakage port 202 is arranged on the second mounting block 208 close to the detection block 4.

[0030] In this solution, the first installation block 207 and the second installation block 208 are joined together to form the sealing sleeve 2, which facilitates the installation and removal of the sealing sleeve 2.

[0031] In one embodiment of the present invention, the first mounting block 207 and the second mounting block 208 are fixedly connected by a locking plate 211. The first mounting block 207 and the second mounting block 208 are both provided with locking grooves 210 near the end side, and the locking plate 211 is provided with a connecting portion 212 that cooperates with the two adjacent locking grooves 210.

[0032] In this solution, after the first mounting block 207 and the second mounting block 208 are closed, the two connecting parts 212 on the locking plate 211 slide into the locking groove 210 on the first mounting block 207 and the locking groove 210 on the adjacent second mounting block 208 to achieve locking of the first mounting block 207 and the second mounting block 208.

[0033] In one embodiment of the present invention, the locking groove 210 is provided through the sealing sleeve 2 along the axial direction of the sealing sleeve 2 .

[0034] In this solution, the height of the locking groove 210 is consistent with the height of the first mounting block 207 and the second mounting block 208 , so as to improve the locking stability and ensure the sealing performance of the sealing sleeve 2 .

[0035] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A gas leak alarm device for a gas meter pipeline, comprising a sealing sleeve mounted on a gas meter body, characterized in that: The first end of the sealing sleeve is sealed and connected to the gas pipe on the gas meter body, and the second end of the sealing sleeve is sealed and connected to the gas pipeline. A cavity is provided in the sealing sleeve, and a gas leakage port connected to the cavity is fixedly provided on the sealing sleeve. A detection rod is slidingly installed in the gas leakage port, and a distance is provided between the detection rod and the cavity. A detection block is installed on the gas meter body, and a proximity switch corresponding to the detection rod and a buzzer alarm connected to the proximity switch signal are installed on the detection block.

2. The gas leakage alarm device for a gas meter pipeline according to claim 1, characterized in that: The detection block is arranged between two gas pipes on the gas meter body. The detection block is installed with a proximity switch on the side close to the gas pipe, and each proximity switch signal is connected to a buzzer alarm.

3. The gas leakage alarm device for a gas meter pipeline according to claim 2, characterized in that: A limiting chamber is provided in the air leakage port, a limiting block is slidably connected in the limiting chamber, the limiting block is fixedly connected to the detection rod, and a spring is fixedly connected between the limiting block and the side wall of the limiting chamber.

4. The gas leakage alarm device for a gas meter pipeline according to claim 3, characterized in that: The sealing sleeve is composed of a first mounting block and a second mounting block. Both ends of the first mounting block and the second mounting block are respectively provided with semicircular sealing rings that cooperate with the air pipe and the gas pipeline. The air leakage port is arranged on the second mounting block close to the detection block.

5. The gas leakage alarm device for a gas meter pipeline according to claim 4, characterized in that: The first mounting block and the second mounting block are fixedly connected via a locking plate. The first mounting block and the second mounting block are both provided with locking grooves near the end sides. The locking plate is provided with a connecting portion that cooperates with adjacent locking grooves.

6. The gas leakage alarm device for a gas meter pipeline according to claim 5, characterized in that: The locking groove is arranged to penetrate the sealing sleeve along the axial direction of the sealing sleeve.

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