Natural gas valve

Abstract

The utility model provides a natural gas valve which comprises a valve body, detection pieces are symmetrically arranged on the left side and the right side of the valve body, sensors used for sensing fuel gas are evenly distributed on the inner rings of the detection pieces in the circumferential direction of the axes of the detection pieces, and two sliding rods which are symmetrically arranged front and back are arranged on the sides, facing the longitudinal section of the valve body, of the detection pieces. The outer ring of the valve body is provided with a hanging lug which can be in left-right sliding fit with the sliding rod, and the sliding rod is sleeved with an elastic piece which is connected with the hanging lug and the detection piece. The gas stove has the advantages that leaked gas can be sensed in time through the sensor right opposite to the connecting position, installation is convenient, and the use safety of the gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a natural gas valve. Background Art

[0002] A natural gas valve is a safety device for gas pipeline projects. It is used to cut off, connect and regulate the gas in the pipeline. It has good control characteristics and closing and sealing performance. With the continuous improvement of people's living standards, the application of natural gas is becoming more and more extensive. Valves are used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure and flow) of the conveying medium. The innovation of natural gas valves can improve the working efficiency of equipment, improve safety, and maximize its value. With the development of science and technology, natural gas valves have developed to a great extent, and their types and quantities are also increasing day by day.

[0003] Although there are many types and quantities of natural gas valves on the market, most of them are directly connected to the gas pipeline. As for gas detection, a gas detector is installed elsewhere in the kitchen to detect whether there is a gas leak. Due to the huge indoor space, when there is a slight gas leak, the sensor in the gas detector is difficult to detect, and it is impossible to alarm in the first time, making it difficult to ensure the safe use of gas. Utility Model Content

[0004] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and provide a natural gas valve.

[0005] The utility model provides a natural gas valve, comprising a valve body 1, wherein detection components 2 are symmetrically arranged on the left and right sides of the valve body 1, and sensors 3 for sensing gas are uniformly distributed on the inner ring of the detection component 2 along the circumferential direction of its axis, and two sliding rods 5 symmetrically arranged front and back are arranged on one side of the detection component 2 facing the longitudinal section of the valve body 1, and the outer ring of the valve body 1 is provided with a hanging ear 4 for accommodating the sliding rod 5 to slide left and right, and an elastic component 6 connecting the hanging ear 4 and the detection component 2 is arranged on the outer sleeve of the sliding rod 5.

[0006] Furthermore, the detection member 2 is provided with a through hole for passing the wiring harness of the sensor 3 .

[0007] Furthermore, the detection member 2 comprises a thin ring 2.1 sleeved on the outside of the valve body 1, the inner ring of the thin ring 2.1 is provided with inner convex parts 2.2 uniformly distributed along the circumference of its axis, and the sensor 3 is arranged on the inner convex part 2.2.

[0008] Furthermore, a limiting column abutting against the hanging ear 4 is provided at the end of the sliding rod 5 .

[0009] Furthermore, the inside and outside of the interface of the valve body 1 are respectively provided with an internal thread 7 and a first annular protrusion 8 .

[0010] Furthermore, the left and right end surfaces of the valve body 1 are symmetrically provided with second annular protrusions 9 , and the outer ring of the second annular protrusion 9 is provided with an annular sealing groove 9 . 1 .

[0011] The advantages of the utility model are as follows: the leaked gas can be sensed in time by the sensor facing the connection, the installation is convenient and the safety of gas use is improved; the detection part is pushed a little along the sliding rod toward the valve stem to make it leave the interface, and after the interface of the valve body is connected to the gas pipeline, the detection part is loosened, and the detection part is laterally moved and reset under the action of the elastic part, which is convenient for installation; the thin ring setting can reduce weight and cost, and the sliding rod and the sensor are arranged on the inner convex part; the limit column setting can limit the position of the detection part, so that the detection part is in the middle of the connection between the valve body and the gas pipeline; the valve body is threadedly connected to the gas pipeline through an internal thread, and the first annular protrusion can strengthen the structural strength of the connection; the annular sealing groove can be covered with a sealing ring, which has a good sealing effect when connected to the gas pipeline to prevent gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is the front view of the utility model;

[0014] Figure 3 It is a top view of the utility model;

[0015] Figure 4 for Figure 2 AA section view. DETAILED DESCRIPTION

[0016] The following is a detailed description of the embodiments of the present utility model in conjunction with the accompanying drawings.

[0017] See also Figures 1 to 4 The utility model provides a natural gas valve, which includes a valve body 1, and detection parts 2 are symmetrically arranged on the left and right sides of the valve body 1. The inner ring of the detection part 2 is uniformly distributed with sensors 3 for sensing gas along the circumference of its axis. The sensors can be electrically connected to external sound and light alarms and display meters. The detection part 2 is provided with a through hole for passing the sensor 3 wiring harness. The detection part 2 is provided with two slide bars 5 symmetrically arranged front and back on one side facing the longitudinal section of the valve body 1. The outer ring of the valve body 1 is provided with a hanging ear 4 for accommodating the sliding rod 5 to slide left and right. The sliding rod 5 is provided with an elastic member 6 connecting the hanging ear 4 and the detection part 2. The detection part is pushed a little along the sliding rod toward the valve stem to make it leave the interface. After the interface of the valve body is connected to the gas pipeline, the detection part is loosened. The detection part is horizontally moved and reset under the action of the elastic member. The installation is convenient. The detection part is in the middle of the connection between the valve body and the gas pipeline. The sensor is facing the connection, and can sense the leaked gas in time.

[0018] See also Figure 1 , Figure 4 The detection member 2 includes a thin ring 2.1 sleeved on the outside of the valve body 1, the inner ring of the thin ring 2.1 is uniformly provided with inner convex parts 2.2 along the circumference of its axis, and the sensor 3 is arranged on the inner convex part 2.2. The thin ring can reduce weight and cost.

[0019] The end of the slide rod 5 is provided with a limit column abutting against the hanging ear 4. The limit column can limit the position of the detection member so that the detection member is located in the middle of the connection between the valve body and the gas pipeline.

[0020] The inside and outside of the interface of the valve body 1 are respectively provided with internal threads 7 and a first annular protrusion 8. The valve body is threadedly connected to the gas pipeline through the internal threads, and the first annular protrusion can enhance the structural strength of the connection.

[0021] The annular sealing groove can be covered with a sealing ring, which has a good sealing effect when connected to the gas pipeline to prevent gas leakage. The left and right end surfaces of the valve body 1 are symmetrically provided with second annular protrusions 9, and the outer ring of the second annular protrusion 9 is provided with an annular sealing groove 9.1.

[0022] The utility model natural gas valve can timely sense leaked gas through the sensor at the connection part, is easy to install and improves the safety of gas use.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A natural gas valve, characterized in that: It includes a valve body, wherein detection parts are symmetrically arranged on the left and right sides of the valve body, the inner ring of the detection part is uniformly distributed with sensors for sensing gas along the circumference of its axis, the detection part is provided with two sliding rods symmetrically arranged front and back on the side facing the longitudinal section of the valve body, the outer ring of the valve body is provided with a hanging ear for accommodating the sliding rod to slide left and right, and the outer sleeve of the sliding rod is provided with an elastic part connecting the hanging ear and the detection part.

2. A natural gas valve according to claim 1, characterized in that: The detection member is provided with a through hole for passing the sensor harness.

3. A natural gas valve according to claim 1, characterized in that: The detection member comprises a thin ring sleeved outside the valve body, the inner ring of the thin ring is provided with inner convex parts evenly distributed along the circumference of its axis, and the sensor is arranged on the inner convex parts.

4. A natural gas valve according to claim 1, characterized in that: The end of the slide rod is provided with a limiting column abutting against the hanging ear.

5. A natural gas valve according to claim 1, characterized in that: The interface of the valve body is provided with internal threads and a first annular protrusion inside and outside respectively.

6. A natural gas valve according to claim 1, characterized in that: Second annular protrusions are symmetrically arranged on both left and right end surfaces of the valve body, and an annular sealing groove is formed on the outer ring of the second annular protrusion.

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