Gun jumping prevention type CNG filling gun

Abstract

The utility model discloses an anti-jumping gun type CNG gas filling gun which comprises a gas filling gun shell, a birdmouth shell is externally connected to the gas filling gun shell, a gas supply pipeline is inserted into the birdmouth shell, a valve plate adjusting structure is arranged on the gas filling gun shell, a first through hole is formed in the side wall of the gas filling gun shell, and a second through hole is formed in the side wall of the gas filling gun shell. A first through hole is formed in the gas filling gun shell, a first connecting pipe is installed in the first through hole, a T-shaped gas supply pipeline is installed on the first connecting pipe, and the two ends of the T-shaped gas supply pipeline extend out of the two sides of the gas filling gun shell. When compressed natural gas passes through the gun head, the gun head and the birdmouth can be firmly connected together, after gas filling operation is completed, the compressed natural gas in the gun head is emptied, and the gun head can be easily separated from the birdmouth.

Description

Technical Field

[0001] The utility model relates to the technical field of gas, in particular to an anti-jump gun type CNG filling gun. Background Art

[0002] During the refueling operation at a gas station, if there is no sealed connection between the refueling gun head and the gas cylinder interface, or if the leak-proof rubber ring of the refueling gun head is damaged, the refueling gun will jump. That is, the refueling gun will separate from the gas cylinder interface under the action of the compressed natural gas in the gun, and the gun head will move around randomly, which is very dangerous. The original refueling gun was equipped with a ring with a soft rope. The operating regulations require that the ring must be fixed before refueling operations can be carried out. However, operators often do not follow the operating regulations. In order to complete the refueling operation quickly, they directly plug in the gun head and start refueling, which poses certain safety hazards. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model provides an anti-jump gun type CNG gas filling gun, which solves the problem that during the existing gas filling operation at the gas filling station, when there is no sealed connection between the gas filling gun head and the gas cylinder interface, or the leak-proof rubber ring of the gas filling gun head is damaged, the gas filling gun will jump. That is, the gas filling gun will separate from the gas cylinder interface under the action of the compressed natural gas in the gun, and the gun head will move around, which is very dangerous.

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: it includes a gas filling gun housing, the gas filling gun housing is connected to a socket shell, and an air supply pipe is inserted in the socket shell, and it is characterized in that the gas filling gun housing is provided with a valve plate adjustment structure, and the side wall of the gas filling gun housing is provided with a first through hole, a first connecting pipe is installed in the first through hole, a T-shaped gas supply pipe is installed on the first connecting pipe, both ends of the T-shaped gas supply pipe extend through both sides of the gas filling gun housing, a vent pipe is installed on the right end of the T-shaped gas supply pipe, a vent valve is installed on the vent pipe, and the left side of the T-shaped gas supply pipe matches the gas supply pipe inserted in the socket shell.

[0005] The valve plate adjustment structure is as follows: a first mounting groove is opened on the left side of the gas gun housing, the right side of the first mounting groove is connected to the first through hole, a first pneumatic piston is provided in the first mounting groove, a first rotating shaft is provided in the first mounting groove and located on the left side of the first pneumatic piston, a first valve plate is installed on the first rotating shaft, and a first fixing rod is installed in the first mounting groove and located between the first valve plate and the first pneumatic piston.

[0006] The valve plate adjustment structure is as follows: a second mounting groove is opened on the left side of the gas gun housing, the right side of the second mounting groove is connected to the first through hole, a vent hole is provided on the left side of the second mounting groove, a partition is provided on the left side of the gas gun housing and below the second mounting groove, a second pneumatic piston is installed in the second mounting groove, a second rotating shaft is installed on the second pneumatic piston, a second valve plate is installed on the second rotating shaft, and a fixing rod is provided on the gas gun housing and between the second mounting groove and the partition.

[0007] This utility model provides a jump-proof CNG filling gun. It has the following beneficial effects: When compressed natural gas (CNG) flows through the gun head, the gun head and the socket can be securely connected. After the filling operation is completed, the compressed natural gas in the gun head is vented, and the gun head can be easily separated from the socket. The compressed natural gas in the pipeline is utilized to achieve a self-locking function for the filling gun head, thereby improving the safety of the filling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic structural diagram of an anti-jump gun type CNG filling gun described in the utility model.

[0009] Figure 2 This is a structural diagram of Example 1 of an anti-jump gun type CNG gas filling gun described in the utility model in a non-ventilated state, with the valve plate in a movable state.

[0010] Figure 3 This is a structural diagram of Example 2 of an anti-jump gun type CNG gas filling gun described in the utility model in a non-ventilated state, with the valve plate in a movable state.

[0011] Figure 4 This is the ventilation state of Example 2 of the anti-jump gun type CNG gas filling gun described in the utility model, and the valve plate is in a locked state.

[0012] In the figure: 1-gas gun housing; 2-socket housing; 3-gas supply pipe; 4-vent pipe; 5-vent valve; 6-first pneumatic piston; 7-first rotating shaft; 8-first valve plate; 9-first fixed rod; 10-partition; 11-second pneumatic piston; 12-second rotating shaft; 13-second valve plate; 14-fixed rod. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] See also Figure 1-4 The utility model provides a technical solution: an anti-jump gun type CNG gas filling gun, comprising a gas filling gun housing 1, the gas filling gun housing 1 is connected to a socket housing 2, a gas supply pipe 3 is inserted in the socket housing 2, a valve plate adjustment structure is provided on the gas filling gun housing 1, a first through hole is opened on the side wall of the gas filling gun housing 1, a first connecting pipe is installed in the first through hole, a T-shaped gas supply pipe 3 is installed on the first connecting pipe, both ends of the T-shaped gas supply pipe 3 extend through both sides of the gas filling gun housing 1, a vent pipe 4 is installed at the right end of the T-shaped gas supply pipe 3, a vent valve 5 is installed on the vent pipe 4, and the left side of the T-shaped gas supply pipe 3 matches the gas supply pipe 3 inserted in the socket housing 2.

[0015] Example 1: The valve plate adjustment structure is as follows: a first mounting groove is opened on the left side of the gas gun housing 1, the right side of the first mounting groove is connected to the first through hole, a first pneumatic piston 6 is provided in the first mounting groove, a first rotating shaft 7 is provided in the first mounting groove and located on the left side of the first pneumatic piston 6, a first valve plate 8 is installed on the first rotating shaft 7, and a first fixing rod 9 is installed in the first mounting groove and located between the first valve plate 8 and the first pneumatic piston 6.

[0016] Example 2: The valve plate adjustment structure is as follows: a second mounting groove is opened on the left side of the gas gun housing 1, the right side of the second mounting groove is connected to the first through hole, a vent is provided on the left side of the second mounting groove, a partition 10 is provided on the left side of the gas gun housing 1 and below the second mounting groove, a second pneumatic piston 11 is installed in the second mounting groove, a second rotating shaft 12 is installed on the second pneumatic piston 11, a second valve plate 13 is installed on the second rotating shaft 12, and a fixing rod 14 is provided on the gas gun housing 1 and between the second mounting groove and the partition 10;

[0017] Before refueling, there's no CNG in the pipeline, and the valve plate is in a movable position. During refueling, after connecting the nozzle to the socket housing, the pipeline is vented. CNG flows through the vent pipe, locking the valve plate and preventing the nozzle from falling out of the socket. After refueling is complete, the vent valve is activated to vent the nozzle and CNG from the refueling pipeline. This also vents the CNG from the vent pipe, returning the valve plate to its movable position. The nozzle is then removed from the socket, completing the refueling operation.

[0018] The specific principle of this utility model is that the pressure of compressed natural gas in the pipeline is used to control the valve plate to be in a movable and locked state. When there is compressed natural gas in the pipeline, the valve plate is in a locked state, and the gas nozzle head and the socket cannot be separated. When there is no compressed natural gas in the pipeline, the valve plate is in a movable state, and the gas nozzle head and the socket can be easily separated.

[0019] It should be noted that:

[0020] 1. The pressure of compressed natural gas in the pipeline is used to realize the movable and locked state of the valve plate without adding external power;

[0021] 3. The safety of gas filling operations is improved by increasing the work content of gas filling operators;

[0022] 4. This equipment has a wide range of uses and is suitable for all stations that use gas filling guns.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNG filling gun with an anti-jump gun type, comprising a filling gun housing (1), wherein the filling gun housing (1) is externally connected to a socket housing (2), and a gas supply pipe (3) is inserted into the socket housing (2), characterized in that: The gas filling gun housing (1) is provided with a valve plate adjustment structure, a first through hole is opened on the side wall of the gas filling gun housing (1), a first connecting pipe is installed in the first through hole, a T-shaped gas supply pipe (3) is installed on the first connecting pipe, both ends of the T-shaped gas supply pipe (3) extend through both sides of the gas filling gun housing (1), a vent pipe (4) is installed at the right end of the T-shaped gas supply pipe (3), a vent valve (5) is installed on the vent pipe (4), and the left side of the T-shaped gas supply pipe (3) matches the gas supply pipe (3) inserted in the socket housing (2).

2. The anti-jump gun type CNG gas filling gun according to claim 1, characterized in that: The valve plate adjustment structure is as follows: a first mounting groove is provided on the left side of the gas gun housing (1); the right side of the first mounting groove is connected to the first through hole; a first pneumatic piston (6) is provided in the first mounting groove; a first rotating shaft (7) is provided in the first mounting groove and located on the left side of the first pneumatic piston (6); a first valve plate (8) is installed on the first rotating shaft (7); a first fixing rod (9) is installed in the first mounting groove and located between the first valve plate (8) and the first pneumatic piston (6).

3. The anti-jump gun type CNG gas filling gun according to claim 1, characterized in that: The valve plate adjustment structure is as follows: a second mounting groove is provided on the left side of the gas filling gun housing (1); the right side of the second mounting groove is connected to the first through hole; a vent hole is provided on the left side of the second mounting groove; a partition (10) is provided on the left side of the gas filling gun housing (1) and below the second mounting groove; a second pneumatic piston (11) is installed in the second mounting groove; a second rotating shaft (12) is installed on the second pneumatic piston (11); a second valve plate (13) is installed on the second rotating shaft (12); a fixing rod (14) is provided on the gas filling gun housing (1) and located between the second mounting groove and the partition (10).

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