Gas metering valve

Abstract

The utility model discloses a fuel gas metering valve, which belongs to the technical field of metering valves and comprises a main pipeline and a metering valve body arranged at the upper end of the main pipeline, connecting pipelines are movably arranged at two ends of the main pipeline respectively, and a connecting disc is fixedly arranged at one end of each connecting pipeline. The outer side of the connecting pipeline is sleeved with a connecting assembly used for being fixedly connected with the main pipeline. The connecting device has the advantages that the threaded adjusting ring is in threaded connection with the outer side of the connecting pipeline, the distance between the threaded adjusting ring and the end of the connecting pipeline is adjusted by rotating the threaded adjusting ring, namely, the depth of the connecting pipeline inserted into the main pipeline is adjusted and controlled, the distance of the connecting disc is controlled, and then the connecting sleeve and the threaded fixing ring are screwed and fixed. Workers can operate conveniently under the condition that the distance between the two sets of conveying pipes is large or small.

Description

Technical Field

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

[0002] Gas metering valve is a device used for gas metering, also known as gas meter valve, gas valve, gas metering valve, etc. Gas metering valve is mainly used in gas metering pipelines to control and regulate gas flow. This device can accurately measure the amount of gas used, so that users can clearly understand their gas usage, and also provide a clear billing basis for gas supply companies and users.

[0003] The gas metering valve will be installed between two groups of delivery pipes. Most gas metering valves are equipped with connecting plates at both ends of the main pipeline for docking and fixing with the delivery pipes. However, when the delivery pipes are installed and fixed, the distance between the ends of the two groups of delivery pipes cannot be uniformly fixed. When the distance is too large, the sealing of the connection between the gas metering valve body and the delivery pipe is weak. When the distance is small, the gap is small during the installation and disassembly of the gas metering valve, which is inconvenient to operate. Utility Model Content

[0004] The purpose of the utility model is to provide a gas metering valve in order to solve the above technical problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gas metering valve comprises a main pipeline and a metering valve body arranged at the upper end of the main pipeline, wherein connecting pipelines are movably arranged at both ends of the main pipeline, a connecting plate is fixedly arranged at one end of the connecting pipeline, and a connecting assembly for fixedly connecting to the main pipeline is sleeved on the outer side of the connecting pipeline;

[0007] The connecting assembly includes a connecting sleeve and a fixing sleeve arranged on the outside of the connecting pipe, an inner lining ring is fixedly arranged at one end of the connecting sleeve, the inner diameter of the connecting sleeve is larger than the outer diameter of the fixing ring, and the inner diameter of the inner lining ring is smaller than the outer diameter of the fixing ring. A threaded fixing ring for threaded connection of the connecting sleeve is arranged at the end of the outer surface of the main pipe, and a sealing gasket is arranged at the sliding sleeve on the outside of the connecting pipe, and the sealing gasket is located between the end of the main pipe and the fixing ring.

[0008] As a further description of the above technical solution:

[0009] The outer surface of the connecting pipe is threadedly connected with a threaded adjustment ring, and the threaded adjustment ring is located between the sealing gasket and the fixing ring.

[0010] As a further description of the above technical solution:

[0011] The outer surface of the connecting sleeve is provided with a plurality of anti-skid grooves, and the plurality of anti-skid grooves are distributed in a ring array.

[0012] As a further description of the above technical solution:

[0013] A sealing ring is arranged between the inner lining ring and the fixing ring, and an annular groove for embedding the sealing ring is arranged on the outer side of the fixing ring.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] In the utility model, a threaded adjustment ring is threadedly connected to the outer side of the connecting pipe, and the threaded adjustment ring is rotated to adjust the distance between the threaded adjustment ring and the end of the connecting pipe, that is, the depth of the connecting pipe inserted into the main pipe is adjusted and controlled, and the distance of the connecting plate is controlled. Then, the connecting sleeve and the threaded fixing ring are tightened and fixed, which is convenient for the staff to operate when the distance between the two groups of conveying pipes is large or small.

[0016] In the utility model, the sealing gasket is pressed tightly against the end face of the main pipe by the threaded adjustment ring, so as to effectively ensure the sealing of the connection. The sealing ring is arranged between the inner liner ring fixing ring, so as to further ensure the sealing effect of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure shows the appearance of the gas metering valve provided according to the embodiment of the utility model;

[0018] Figure 2 A partial structural cross-sectional view of a gas metering valve provided according to an embodiment of the utility model is shown;

[0019] Figure 3 A schematic diagram of a partial structure explosion of a gas metering valve provided according to an embodiment of the utility model is shown;

[0020] Figure 4 A schematic diagram of the connection structure between a sealing ring and a fixing ring provided according to an embodiment of the utility model is shown.

[0021] Legend: 1. Main pipeline; 2. Metering valve body; 3. Connecting pipeline; 4. Connecting plate; 5. Connecting sleeve; 6. Threaded fixing ring; 7. Sealing gasket; 8. Threaded adjusting ring; 9. Fixing ring; 10. Lining ring; 11. Sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] like Figure 1-4 As shown, a gas metering valve comprises a main pipeline 1 and a metering valve body 2 arranged at the upper end of the main pipeline 1, connecting pipelines 3 are movably arranged at both ends of the main pipeline 1, a connecting plate 4 is fixedly arranged at one end of the connecting pipeline 3, and a connecting assembly for fixedly connecting to the main pipeline 1 is sleeved on the outer side of the connecting pipeline 3;

[0025] The connecting assembly includes a connecting sleeve 5 and a fixing ring 9 which is arranged on the outside of the connecting pipe 3. An inner lining ring 10 is fixedly arranged at one end of the connecting sleeve 5. The inner diameter of the connecting sleeve 5 is larger than the outer diameter of the fixing ring 9, and the inner diameter of the inner lining ring 10 is smaller than the outer diameter of the fixing ring 9. A threaded fixing ring 6 for threaded connection of the connecting sleeve 5 is arranged at the end of the outer surface of the main pipe 1. A raw tape is wrapped around the threaded connection between the connecting sleeve 5 and the threaded fixing ring 6 to ensure sealing. A sealing gasket 7 is arranged on the sliding sleeve on the outside of the connecting pipe 3. The sealing gasket 7 is located between the end of the main pipe 1 and the fixing ring 9. The staff first loosens the connecting sleeve 5 to make the two connecting pipes 3 active, so as to facilitate the insertion of the two connecting pipes 3 between the two groups of conveying pipes, and then connects and fixes the connecting plate 4 to the conveying pipes respectively, and finally tightens the connecting sleeve 5.

[0026] Furthermore, a threaded connection on the outer surface of the connecting pipe 3 is provided with a threaded adjustment ring 8, and a raw tape is wrapped around the connection between the threaded adjustment ring 8 and the connecting pipe 3 to ensure sealing. The threaded adjustment ring 8 is located between the sealing gasket 7 and the fixing ring 9. During the installation process, the staff can adjust the threaded adjustment ring 8 according to needs, and control the distance between the threaded adjustment ring 8 and the end of the connecting pipe 3 by adjusting the depth of the connecting pipe 3 inserted into the main pipe 1, that is, control the distance between the connecting plate 4 and the main pipe 1, so that the spacing between the two connecting plates 4 matches the spacing between the two groups of delivery pipes, and then fix the connecting plate 4 to the delivery pipe.

[0027] Furthermore, a plurality of anti-skid grooves are provided on the outer surface of the connecting sleeve 5 , and the plurality of anti-skid grooves are distributed in a circular array, which effectively increases the friction of the contact of the hands of the staff, and facilitates the staff to hold the outer surface of the connecting sleeve 5 to rotate the connecting sleeve 5 .

[0028] Embodiment 2:

[0029] like Figure 1-4As shown, a sealing ring 11 is provided between the inner liner ring 10 and the fixed ring 9, and an annular groove for embedding the sealing ring 11 is provided on the outer side of the fixed ring 9. The sealing ring 11 is made of rubber material and has good flexibility. During installation, it can be inserted from the middle of the inner liner ring 10 and then embedded into the annular groove, which makes it convenient for the staff to disassemble and replace the sealing ring 11. The inner liner ring 10 and the fixed ring 9 are tightly in contact with and press the sealing ring 11, which effectively ensures the sealing of the connection and achieves the effect of the second layer of sealing protection.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gas metering valve, comprising a main pipeline (1) and a metering valve body (2) arranged at the upper end of the main pipeline (1), characterized in that: The two ends of the main pipeline (1) are movably provided with connecting pipelines (3), one end of the connecting pipeline (3) is fixedly provided with a connecting plate (4), and the outer side of the connecting pipeline (3) is sleeved with a connecting component for fixedly connecting to the main pipeline (1); The connection assembly comprises a connection sleeve (5) and a fixing ring (9) which is fixedly mounted on the outside of the connection pipe (3); an inner lining ring (10) is fixedly mounted on one end of the connection sleeve (5); the inner diameter of the connection sleeve (5) is larger than the outer diameter of the fixing ring (9); the inner diameter of the inner lining ring (10) is smaller than the outer diameter of the fixing ring (9); a threaded fixing ring (6) for threaded connection of the connection sleeve (5) is mounted on the end of the outer surface of the main pipe (1); a sealing gasket (7) is mounted on the outer sliding sleeve of the connection pipe (3); and the sealing gasket (7) is located between the end of the main pipe (1) and the fixing ring (9); The outer surface of the connecting pipe (3) is threadedly connected with a threaded adjustment ring (8), and the threaded adjustment ring (8) is located between the sealing gasket (7) and the fixing ring (9).

2. A gas metering valve according to claim 1, characterized in that: The outer surface of the connecting sleeve (5) is provided with a plurality of anti-skid grooves, and the plurality of anti-skid grooves are distributed in a ring array.

3. A gas metering valve according to claim 1, characterized in that: A sealing ring (11) is provided between the inner lining ring (10) and the fixing ring (9), and an annular groove for embedding the sealing ring (11) is provided on the outer side of the fixing ring (9).

Images