Gas meter connecting structure

Abstract

The invention provides a gas meter connecting structure, which belongs to the technical field of gas equipment, and comprises a gas meter connector, a protection pipe arranged outside the gas meter connector, a valve pipe arranged in the gas meter connector, a valve switch arranged in the valve pipe, and a switch-off measure can be provided for a gas meter connecting section by using the valve switch to control the opening and closing of a valve. If air leaks at the valve joint, the problem is solved by internal shutoff of the connecting structure, the structure can be automatically triggered when air leaks inside, and if air leaks, airflow moves outwards along the joint, and at the moment, as the airflow normally moves transversely, the airflow obliquely moves during leakage to drive an arc-shaped piece to rotate; the star-shaped body at the position of the valve switch is driven to rotate by a certain angle, the valve is closed after the star-shaped body rotates by a certain angle, and therefore serious air leakage at the position of the connecting pipe is avoided.

Description

Technical Field

[0001] The invention belongs to the field of gas equipment, and in particular relates to a gas meter connection structure. Background Art

[0002] Gas meters are widely used in civilian life. As the main control components in residential water supply, heating and gas supply systems, the front connector of the gas meter is used to connect the gas source pipeline with the gas meter of the user, so as to measure and count the gas consumption of the user. The front connector of the gas meter and the gas source pipeline are generally connected with nuts. However, the threaded connection of the nut is easy to disassemble, and gas leakage often occurs, which brings serious economic losses to the gas supply company and threatens the gas safety of the user. Summary of the invention

[0003] The present invention aims at solving the problems in the prior art and provides a gas meter connection structure.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is: In a first aspect, a gas meter connection structure includes: a gas meter connector, a protective tube is provided outside the gas meter connector, a valve tube is provided inside the gas meter connector, a valve switch is provided inside the valve tube, and the valve is controlled to be opened or closed by the valve switch.

[0005] Furthermore, the gas meter connector adopts a tubular connector, and the outer side of the tubular connector has a connecting structure that cooperates with the protective tube. The connecting structure adopts a thread. One end of the tubular connector has a connecting port that is connected to the gas meter, and the other end has a connecting port that is connected to the gas pipeline. A sealing ring is provided at each connecting port.

[0006] Furthermore, the protection tube is made of metal material, which can effectively protect the stability of the gas meter joint and prevent internal joint wear caused by external pressure collision or friction. The protection tube is provided with a sealing gasket to further ensure the sealing of the joint connection.

[0007] Furthermore, the valve switch includes a vent plate, which is circular and installed in the valve tube. The vent plate is provided with multiple vent holes. The vent plate has a mounting axis in the center, and a star is installed on the mounting axis. An arc plate is provided on the star. The arc plate is located in a groove of the valve tube. The size of the groove is larger than the arc plate. The groove is used to limit the movement of the arc plate. The arc plate can drive the star to rotate a certain angle along the groove. The star is a polygon with a through hole and multiple protrusion structures in the center. The star cooperates with the vent plate. Rotating the star can block the vent holes on the vent plate, thereby interrupting the gas delivery in the pipeline. When a leak occurs at the connection, the gas flow presents an oblique airflow, which will drive the arc plate to rotate to one side. The arc plate then drives the star to rotate a certain angle to shut down the pipeline.

[0008] Compared with the prior art, the advantages and positive effects of the present invention are: The present invention provides a gas meter connection structure, including: a gas meter joint, a protective tube is arranged outside the gas meter joint, a valve tube is arranged inside the gas meter joint, a valve switch is arranged inside the valve tube, and the valve switch is used to control the opening and closing of the valve, so as to provide a shut-off measure for the gas meter connection section. If there is a gas leak at the valve connection, the internal shut-off of the connection structure is used to solve the problem. This structure can be automatically triggered when there is an internal gas leak. If a gas leak occurs, the airflow will run to the outside along the connection. At this time, since the airflow normally moves horizontally, it will move obliquely when a leak occurs, driving the arc-shaped sheet to rotate, thereby driving the star-shaped body at the valve switch to rotate a certain angle. After the star-shaped body rotates a certain angle, the valve will be shut off, thereby avoiding serious gas leakage at the connection pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0010] Figure 1 It is a structural schematic diagram of a gas meter connection structure of the present invention; In the above figures, 1. gas meter joint; 2. vent plate; 3. valve tube; 4. mounting shaft; 5. arc plate; 6. star-shaped body; 7. protective tube; 8. sealing gasket; 9. fastening plate. DETAILED DESCRIPTION

[0011] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0012] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0013] Embodiment 1, as Figure 1As shown, the present application provides a gas meter connection structure, including: a gas meter connector 1, a protective tube 7 is provided outside the gas meter connector 1, a valve tube 3 is built into the gas meter connector 1, a valve switch is provided inside the valve tube 3, and the valve switch is used to control the valve opening and closing, which can provide a shut-off measure for the gas meter connection section. If there is a gas leak at the valve connection, the internal shut-off of the connection structure is used to solve the problem. This structure can be automatically triggered when there is an internal leak. If a leak occurs, the airflow will run along the connection to the outside. At this time, since the airflow normally moves horizontally, it will move obliquely when a leak occurs, driving the arc-shaped piece to rotate, thereby driving the star-shaped body at the valve switch to rotate a certain angle. After the star-shaped body rotates a certain angle, the valve will be shut off, thereby avoiding serious gas leakage at the connecting pipe.

[0014] The gas meter connector 1 is a tubular connector, the outer side of which has a connection structure that cooperates with the protective tube. The connection structure is threaded. One end of the tubular connector has a connection port that is connected to the gas meter, and the other end has a connection port that is connected to the gas pipeline. A sealing ring is provided at each connection port.

[0015] The protection tube 7 is made of metal material, which can effectively protect the stability of the gas meter joint and avoid wear of the internal joint caused by external pressure collision or friction. The protection tube is provided with a sealing gasket to further ensure the sealing of the joint connection.

[0016] The valve switch includes a vent plate, which is circular and installed in the valve tube. The vent plate is provided with multiple vent holes. A mounting shaft is provided in the center of the vent plate, and a star is installed on the mounting shaft. An arc plate is provided on the star. The arc plate is located in a groove of the valve tube. The size of the groove is larger than the arc plate. The groove is used to limit the movement of the arc plate. The arc plate can drive the star plate to rotate a certain angle along the groove. The star plate is a polygon with a through hole and multiple protrusion structures at the center. The star plate cooperates with the vent plate. Rotating the star plate can block the vent holes on the vent plate, thereby interrupting the gas transportation in the pipeline. When a leak occurs at the connection, the gas flow direction presents an oblique airflow, which will drive the arc plate to rotate to one side. The arc plate then drives the star plate to rotate a certain angle to realize pipeline shutoff, providing an internal automatic protection measure for the joint to avoid serious consequences caused by leaks at the pipeline joint.

[0017] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A gas meter connection structure, characterized in that: include: A gas meter connector, a protective tube is provided outside the gas meter connector, a valve tube is built into the gas meter connector, a valve switch is provided inside the valve tube, and the valve switch is used to control the opening and closing of the valve. The valve switch includes a vent plate, which is circular and installed in the valve tube. The vent plate is provided with a plurality of vent holes. The center of the vent plate has a mounting shaft, on which a star is mounted. The star is provided with an arc-shaped plate, which is located in a groove of the valve tube. The groove is larger than the arc-shaped plate. The groove is used to limit the movement of the arc-shaped plate. The arc-shaped plate can drive the star to rotate a certain angle along the groove. The star-shaped body is a polygon with a through hole in the center and multiple protruding structures. The star-shaped body cooperates with the ventilation plate. Rotating the star-shaped body can block the ventilation holes on the ventilation plate, thereby interrupting the gas delivery in the pipeline. When a leak occurs at the connection, the gas flow presents an oblique airflow, which will drive the arc-shaped plate to rotate to one side, and the arc-shaped plate then drives the star-shaped body to rotate a certain angle to shut down the pipeline.

2. A gas meter connection structure according to claim 1, characterized in that: The gas meter joint is a tubular joint, the outer side of the tubular joint has a connection structure that cooperates with the protective tube, the connection structure is threaded, one end of the tubular joint has a connection port that docks with the gas meter, and the other end has a connection port that connects to the gas pipeline, and each connection port is provided with a sealing ring.

3. A gas meter connection structure according to claim 1, characterized in that: The protective tube is made of metal material and can effectively protect the stability of the gas meter joint and prevent internal joint wear caused by external pressure collision or friction. The protective tube is provided with a sealing gasket to further ensure the sealing of the joint connection.

Images