Liquefied natural gas filling device

Abstract

The utility model discloses a liquefied natural gas filling device, and relates to the field of liquefied natural gas, the liquefied natural gas filling device comprises a machine body, the two sides of the machine body are connected with connecting pipes, the tail ends of the two connecting pipes are provided with filling guns, the tops of the filling guns are provided with connecting assemblies, the top of the machine body is provided with a supporting assembly, and the supporting assembly is connected with the connecting pipes. The connecting assembly comprises a screw pipe, the screw pipe is installed at the top of the filling gun, the periphery of the screw pipe is sleeved with a sealing sleeve, a rotary knob sleeve is movably installed at the top of the screw pipe, a shaft disc is installed at the top of the screw pipe and penetrates through the interior of the rotary knob sleeve, and a connector is fixedly installed at the top of the rotary knob sleeve. A sealing groove is formed in the position, close to the edge, of the bottom of the knob sleeve. The connection of the connector is facilitated, the rotating operation of the filling gun is reduced, the sealing performance of the joint is improved, meanwhile, the connecting pipe can be lifted and supported at different positions, static electricity is led out, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the field of liquefied natural gas, in particular to a liquefied natural gas filling device. Background Art

[0002] Liquefied natural gas is a liquid fuel formed by cooling and condensing natural gas. It is widely used in power generation, industrial fuel, and urban gas, such as boilers, engines and other equipment. Fuel needs to be added to these equipment for use. This solution specifically involves a liquefied natural gas filling device;

[0003] When the existing liquefied natural gas filling device is in use, the connection between the connecting head of the filling gun and the inlet and outlet pipes of the liquefied gas cylinder is unstable, and the entire device needs to be rotated for threaded connection, which reduces the sealing of the connection. Static electricity is easily generated during the filling process, causing safety hazards. It is not convenient to conduct static electricity and it is not convenient to lift and support the connecting pipe, which has a certain impact on actual use. Utility Model Content

[0004] The main purpose of the utility model is to provide a liquefied natural gas filling device, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A liquefied natural gas filling device comprises a body, both sides of which are connected to connecting pipes, the ends of the two connecting pipes are equipped with filling guns, the top of the filling guns is equipped with a connecting assembly, the top of the body is equipped with a supporting assembly, the connecting assembly comprises a spiral tube, the spiral tube is installed on the top of the filling gun, the outer periphery of the spiral tube is sleeved with a sealing sleeve, the top of the spiral tube is movably equipped with a knob sleeve, the top of the spiral tube is equipped with a shaft disk and passing through the inside of the knob sleeve, the top of the knob sleeve is fixedly equipped with a connector, the bottom of the knob sleeve is provided with a sealing groove near the edge, and the top of the sealing sleeve is provided with a sealing ring near the edge.

[0007] As a further solution of the utility model, the outer periphery of the spiral tube is provided with threads, and the sealing sleeve is located on the outer periphery of the spiral tube and is connected with the threads.

[0008] As a further solution of the utility model, the shaft disc and the spiral tube are fixedly installed, and the shaft disc passes through the interior of the knob sleeve and is movably rotatable.

[0009] As a further solution of the utility model, the spiral tube is communicated with the interior of the knob sleeve through the shaft disk, and the sealing ring is located in the sealing groove in a clamping arrangement.

[0010] As a further solution of the utility model, the support assembly includes two support rods, a rotating shaft is installed at the rear end of the support rod and at the top of the machine body, the support rod is movably installed on the top of the machine body through the rotating shaft, a grounding wire is connected between the bottom of the rotating shaft near the rear end and the ground, a guide rod is fixedly installed inside the support rod, a slider is movably installed around the guide rod and at the bottom of the support rod, a lifting rope is connected to the bottom of the sliding block, and a lifting ring is hung on the bottom end of the lifting rope.

[0011] As a further solution of the utility model, the support rod is movably rotatably arranged at the top of the machine body through a rotating shaft, and the guide rod is connected to the ground wire through the rotating shaft.

[0012] As a further solution of the utility model, the sliding block is sleeved on the periphery of the guide rod in a sliding arrangement, and the lifting ring is used to be sleeved on the periphery of the connecting pipe.

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

[0014] By setting a connection component and rotating the knob sleeve, the connector is connected to the inlet and outlet pipes of the liquefied gas cylinder, which facilitates the connection and sealing of the connector, reduces the rotation operation of the filling gun, and rotates the sealing sleeve to make the sealing sleeve slide through the thread, and the sealing ring is stuck in the sealing groove, so that the movable connection between the knob sleeve and the spiral tube can be sealed, thereby improving the overall sealing performance;

[0015] By setting up a support assembly, the support rod rotates through the rotating shaft, the slider slides through the guide rod, and the connecting pipe is hung by a lifting rope, which facilitates the lifting and support of the connecting pipe. It can be supported at different positions. Through the connection of the lifting rope and the guide rod, the static electricity generated at the filling gun is connected to the grounding wire, and the static electricity is discharged, reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a liquefied natural gas filling device of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a connecting assembly in a liquefied natural gas filling device of the utility model;

[0018] Figure 3 The utility model is a liquefied natural gas filling device Figure 2 A magnified image of point A;

[0019] Figure 4 The utility model is a structural schematic diagram of a support assembly in a liquefied natural gas filling device.

[0020] In the figure: 1. body; 2. connecting pipe; 3. filling gun; 4. connecting assembly; 5. supporting assembly; 6. screw tube; 7. sealing sleeve; 8. shaft disc; 9. knob sleeve; 10. connector; 11. sealing groove; 12. sealing ring; 13. support rod; 14. rotating shaft; 15. grounding wire; 16. guide rod; 17. slider; 18. lifting rope; 19. lifting ring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, a liquefied natural gas filling device includes a body 1, connecting pipes 2 are connected to both sides of the body 1, filling guns 3 are installed at the ends of the two connecting pipes 2, a connecting assembly 4 is installed on the top of the filling gun 3, a supporting assembly 5 is installed on the top of the body 1, the connecting assembly 4 includes a spiral tube 6, the spiral tube 6 is installed on the top of the filling gun 3, a sealing sleeve 7 is sleeved on the outer periphery of the spiral tube 6, a knob sleeve 9 is movably installed on the top of the spiral tube 6, a shaft disk 8 is installed on the top of the spiral tube 6 and passes through the inside of the knob sleeve 9, a connector 10 is fixedly installed on the top of the knob sleeve 9, a sealing groove 11 is opened at the bottom of the knob sleeve 9 near the edge, and a sealing ring 12 is installed at the top of the sealing sleeve 7 near the edge.

[0023] In this embodiment, the outer periphery of the spiral tube 6 is provided with threads, and the sealing sleeve 7 is arranged on the outer periphery of the spiral tube 6 in a threaded connection. By rotating the sealing sleeve 7, the sealing sleeve 7 slides under the action of the threaded connection, so that the movable connection of the knob sleeve 9 is sealed.

[0024] In this embodiment, the shaft disc 8 and the spiral tube 6 are fixedly installed, and the shaft disc 8 passes through the interior of the knob sleeve 9 and is movably rotatable. By rotating the shaft disc 8, the connector 10 is rotated to connect with the inlet and outlet pipes of the liquefied gas cylinder.

[0025] In this embodiment, the screw tube 6 is communicated with the interior of the knob sleeve 9 through the shaft disk 8, and the sealing ring 12 is located in the sealing groove 11 and is snap-fitted therein, thereby improving the sealing performance of the movable connection between the knob sleeve 9 and the screw tube 6.

[0026] In this embodiment, the support assembly 5 includes two support rods 13, and a rotating shaft 14 is installed at the rear end of the support rod 13 and located on the top of the body 1. The support rod 13 is movably installed on the top of the body 1 through the rotating shaft 14, and a grounding wire 15 is connected between the bottom of the rotating shaft 14 and the ground near the rear end. A guide rod 16 is fixedly installed inside the support rod 13, and a slider 17 is movably installed on the periphery of the guide rod 16 and located at the bottom of the support rod 13. A lifting rope 18 is connected to the bottom of the slider 17, and a lifting ring 19 is hung at the bottom of the lifting rope 18. The connecting pipe 2 is supported and lifted by the support rod 13 and the lifting rope 18, and the static electricity carried by the filling gun 3 is discharged through the grounding wire 15, thereby improving safety.

[0027] In this embodiment, the support rod 13 is movably rotatably arranged at the top of the body 1 through the rotating shaft 14, and the guide rod 16 is connected to the grounding wire 15 through the rotating shaft 14. The support rod 13 is rotated through the rotating shaft 14 to facilitate adjustment and support at different positions.

[0028] In this embodiment, the slider 17 is sleeved on the periphery of the guide rod 16 to be slidable, and the lifting ring 19 is used to be sleeved on the periphery of the connecting pipe 2. Through the sliding of the slider 17, support at different positions and distances is performed.

[0029] It should be noted that the utility model is a liquefied natural gas filling device. When in use, the liquefied natural gas is first transported to the filling gun 3 through the connecting pipe 2. When connecting to the inlet and outlet pipes of the liquefied gas cylinder, the knob sleeve 9 is rotated to connect the connector 10 to the inlet and outlet pipes of the liquefied gas cylinder through threads. The sealing sleeve 7 is then rotated to slide toward the knob sleeve 9 through the threaded connection, so that the sealing ring 12 is inserted into the sealing groove 11, thereby sealing the movable connection between the knob sleeve 9 and the spiral tube 6. Filling is performed by pressing the gate of the filling gun 3. When static electricity is generated at the filling gun 3, the connecting pipe 2 is lifted and supported by the support rod 13 and the lifting rope 18, and the static electricity is conducted to the grounding wire 15 through the lifting rope 18, thereby conducting the static electricity in the filling gun 3.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A liquefied natural gas filling device, comprising a body (1), both sides of the body (1) are connected to connecting pipes (2), the ends of the two connecting pipes (2) are each installed with a filling gun (3), the top of the filling gun (3) is installed with a connecting assembly (4), and the top of the body (1) is installed with a supporting assembly (5), characterized in that: The connecting assembly (4) comprises a solenoid (6), wherein the solenoid (6) is mounted on the top of the filling gun (3), a sealing sleeve (7) is sleeved on the outer periphery of the solenoid (6), a knob sleeve (9) is movably mounted on the top of the solenoid (6), a shaft disc (8) is mounted on the top of the solenoid (6) and passes through the interior of the knob sleeve (9), a connector (10) is fixedly mounted on the top of the knob sleeve (9), a sealing groove (11) is provided at the bottom of the knob sleeve (9) near the edge, and a sealing ring (12) is mounted at the top of the sealing sleeve (7) near the edge.

2. A liquefied natural gas filling device according to claim 1, characterized in that: The outer periphery of the spiral tube (6) is provided with threads, and the sealing sleeve (7) is located on the outer periphery of the spiral tube (6) and is connected with the threads.

3. A liquefied natural gas filling device according to claim 1, characterized in that: The shaft disc (8) and the spiral tube (6) are fixedly installed, and the shaft disc (8) penetrates the interior of the knob sleeve (9) and is movably rotatable.

4. A liquefied natural gas filling device according to claim 1, characterized in that: The spiral tube (6) is communicated with the interior of the knob sleeve (9) through the shaft disc (8), and the sealing ring (12) is located in the sealing groove (11) in a clamping arrangement.

5. A liquefied natural gas filling device according to claim 1, characterized in that: The support assembly (5) comprises two support rods (13), a rotating shaft (14) is installed at the rear end of the support rod (13) and located at the top of the machine body (1), the support rod (13) is movably installed at the top of the machine body (1) through the rotating shaft (14), a grounding wire (15) is connected between the bottom of the rotating shaft (14) and the ground near the rear end, a guide rod (16) is fixedly installed inside the support rod (13), a slider (17) is movably installed outside the guide rod (16) and located at the bottom of the support rod (13), a suspension rope (18) is connected to the bottom of the suspension rope (18), and a suspension ring (19) is hung at the bottom of the suspension rope (18).

6. A liquefied natural gas filling device according to claim 5, characterized in that: The support rod (13) is movably rotatably arranged at the top of the machine body (1) via a rotating shaft (14), and the guide rod (16) is connected to the grounding wire (15) via the rotating shaft (14).

7. A liquefied natural gas filling device according to claim 5, characterized in that: The slide block (17) is sleeved on the periphery of the guide rod (16) in a sliding arrangement, and the lifting ring (19) is used to be sleeved on the periphery of the connecting pipe (2).

Images