A LNG refueling operation assisting device

Abstract

The utility model relates to an LNG filling device, and in particular to an LNG filling operation assisting device. In order to solve the technical problems in the prior art that a filling gun is difficult to keep horizontally aligned with a gas cylinder filling port when the gun is inserted due to the effect of gravity, which accelerates the deformation and wear of an outer sealing ring, and the tail of the filling gun sinks in the inserted state, causing the gun body to tilt downward, which accelerates the deformation and wear of an inner sealing ring, the LNG filling operation assisting device comprises a vertical rod, a horizontal rod, a tension spring balancer, a traction rope and a fixed platform; one end of the vertical rod is connected to the fixed platform, one end of the horizontal rod is connected to the other end of the vertical rod, and the height of the other end of the horizontal rod is higher than the height of the gas filling machine; the upper end of the tension spring balancer is connected to the other end of the horizontal rod, and the lower end of the tension spring balancer is connected to the upper end of the traction rope; the lower end of the traction rope is used to be connected to the filling gun of the gas filling machine.

Description

Technical Field

[0001] The utility model relates to an LNG filling device, in particular to an LNG filling operation assisting device. Background Art

[0002] Gas filling operation is an important process operation link of LNG filling station. At present, it is all manually operated in the industry. Due to the ultra-low temperature characteristics of LNG at minus 162℃, the LNG filling gun must have the functions of antifreeze, ice breaking and cutting off to prevent freezing with the filling port of the gas cylinder, which determines that the structure of the LNG filling gun is relatively complex and bulky. The weight of the popular filling guns on the market is mostly around 6.5 kg. With the connected metal hose, the filling gun and the hose weigh about 9.5 kg in total in the gas filling state. During the gas filling operation, the gas filler removes the filling gun from the gas filling machine, lifts both hands to the front of the vehicle gas cylinder, lifts the filling gun horizontally (about 1.4 meters) so that the muzzle is horizontally aligned with the filling port of the gas cylinder and inserts it, pushes the filling gun handle forward to lock the filling gun with the filling port, and starts filling. After filling, pull the filling gun handle backwards, unlock, remove the filling gun and put it back into the gas filling machine. According to the average gas filling volume of 140 kg per vehicle, when the sales volume per shift is 10 tons, each shift staff needs to insert and pull out the mobile gas filling gun about 140 times. When the sales volume per shift is 20 tons, each shift staff needs to insert and pull out the mobile gas filling gun about 290 times. The gas filling process is labor-intensive and has high requirements on the physique and strength of employees. When the sales volume is large, the operators are very likely to have safety hazards due to fatigue. Therefore, LNG gas stations generally recruit male employees. Affected by the income of the LNG gas station industry and the fierce competition in the industry, the female team has a certain stability compared to male tools. At the same time, the gas station has increasing requirements for employee stability, site safety, production efficiency and production costs. If certain measures can be taken to reduce the strength requirements during gas filling operations, it can effectively reduce labor intensity, broaden employment conditions, and improve work efficiency and safety.

[0003] The current gas filling gun is affected by gravity. It is difficult for employees with short stature or weak strength to keep the gas filling gun and the gas cylinder filling port horizontally aligned when inserting the gun, so that the outer sealing ring of the gas filling gun is unevenly stressed when locked, which accelerates the deformation and wear of the outer sealing ring. In addition, when the gas filling gun is inserted, it is affected by the gravity of the metal hose, and the tail of the gas filling gun sinks, causing the gun body to tilt downward, so that the upper and lower vertices of the inner sealing ring are unevenly stressed, which accelerates the deformation and wear of the inner sealing ring. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art that the gas filling gun is difficult to maintain horizontal alignment with the filling port of the gas cylinder when the gun is inserted due to the effect of gravity, which accelerates the deformation and wear of the outer sealing ring, and the tail of the gas filling gun sinks when the gun is inserted, causing the gun body to tilt downward, thereby accelerating the deformation and wear of the inner sealing ring, and provides an LNG gas filling operation assisting device.

[0005] To achieve the above purpose, the technical solutions provided by the utility model are as follows:

[0006] A LNG filling operation assisting device is special in that it includes a vertical rod, a horizontal rod, a tension spring balancer, a traction rope and a fixed platform; one end of the vertical rod is connected to the fixed platform; one end of the horizontal rod is connected to the other end of the vertical rod, and the height of the other end of the horizontal rod is higher than the height of the gas filling machine; the upper end of the tension spring balancer is connected to the other end of the horizontal rod, and the lower end of the tension spring balancer is connected to the upper end of the traction rope; the lower end of the traction rope is used to connect to the gas filling gun of the gas filling machine; the fixed platform is a hardened ground near the gas filling machine, the ceiling of the building where the gas filling machine is installed, or the top of the gas filling machine.

[0007] Furthermore, it also includes a breaker, which is arranged between the tension spring balancer and the other end of the horizontal rod through a connecting rope; the breaker is arranged in the middle of the connecting rope.

[0008] Furthermore, it also includes a breaker, which is arranged between the tension spring balancer and the traction rope.

[0009] Furthermore, the height of the upper end of the tension spring balancer is higher than the height of the gas filling machine.

[0010] Furthermore, one end of the horizontal rod is vertically connected to the other end of the vertical rod.

[0011] Furthermore, it includes a reinforcing rod, one end of which is connected to the vertical rod and the other end is connected to the horizontal rod; or, it includes two reinforcing rods, one end of which is connected to the vertical rod and the other end is connected to the horizontal rod, and one end of the other reinforcing rod is connected to the vertical rod and the other end is connected to the fixed platform.

[0012] Furthermore, a warning sign of the longest moving distance is arranged on the traction rope, and a protective sleeve is arranged on the outside of the traction rope.

[0013] Furthermore, the vertical rod is rotatably connected to the fixed platform.

[0014] Furthermore, the traction rope is fixed to the tail of the gas filling gun.

[0015] Furthermore, one end of the horizontal rod is rotatably connected to the other end of the vertical rod.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model provides an auxiliary lifting torque through a tension spring balancer during the LNG filling operation, reducing the intensity of the gun lifting and moving operation, making the operation process light, efficient and safe. The tension spring balancer can balance the gravity of the tail of the gas filling gun during the filling process, overcome the vertical force on the muzzle caused by the deadweight of the gas filling gun when the gun is inserted, and extend the service life of the outer sealing ring. Each gas filling gun can save 50% of the outer sealing rings every year, and also avoid the wear of the inner sealing ring caused by the sinking of the tail of the gas filling gun when the gun is inserted.

[0018] 2. The vertical rod of the utility model is rotatably connected to the fixed platform, which improves the flexibility of the use of the gas gun and makes it convenient to move to different angles.

[0019] 3. The utility model can be generally applied to the gas filling assistance of gas filling machines of different brands. It has certain innovation, practicality and economy, and is suitable for promotion and application within the industry. It can effectively reduce the labor intensity of gas filling operations, improve production efficiency, ensure operation safety, broaden the conditions for recruiting employees, especially the recruitment of female employees, and is conducive to social employment and the stability of the workforce. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1-gas filling gun, 2-vertical rod, 3-tension spring balancer, 4-horizontal rod, 5-pull breaker, 6-traction rope. DETAILED DESCRIPTION

[0023] The utility model provides an LNG refueling operation assisting device, which includes a vertical rod 2, a horizontal rod 4, a traction rope 6 and a tension spring balancer 3. Figure 1 As shown, the vertical rod 2 is installed on the top of the gas filling machine, one end of which is connected to the top of the gas filling machine, one end of the horizontal rod 4 is connected to the other end of the vertical rod 2, and the height of the other end of the horizontal rod 4 is higher than the height of the gas filling machine; the upper end of the tension spring balancer 3 is connected to the other end of the horizontal rod 4, and to ensure the power-assisting effect, the height of the upper end of the tension spring balancer 3 is higher than the height of the gas filling machine; the lower end of the tension spring balancer 3 is connected to the upper end of the traction rope 6, and the lower end of the traction rope 6 is connected to the gas filling gun 1, and the traction rope 6 is usually a steel wire rope, which is connected to the tail of the gas filling gun 1 near its handle assembly; the tension spring balancer 3 provides an upward 3-5 kg ​​balancing torque to the gas filling gun 1, offsetting part of the dead weight of the gas filling gun 1 and the gas filling hose, so as to achieve the purpose of reducing the working intensity. After the device is applied and measured on the spot, the lifting force of the operator is reduced to less than 2 kg when filling gas, and the gas filling gun 1 can be easily moved with one hand.

[0024] The utility model also includes a breaker 5 arranged between the tension spring balancer 3 and the other end of the horizontal rod 4 through a connecting rope. The breaker 5 is arranged in the middle of the connecting rope, and a warning mark is set on the traction rope 6 corresponding to the longest moving distance. When the moving distance of the gas filling gun 1 is close to the permitted maximum moving distance, the warning mark is first exposed. In an emergency state beyond the permitted range, the breaker 5 is disconnected, and the traction rope 6 is quickly separated from the power-assisting device to ensure the safety of the gas filling machine.

[0025] In order to improve the flexibility of the gas filling gun, the vertical rod 2 is rotatably connected to the top of the gas filling machine.

[0026] In order to ensure the stability of the connection between the vertical rod 2 and the horizontal rod 4, a reinforcing rod can also be set, one end of the reinforcing rod is connected to the vertical rod 2, and the other end is connected to the horizontal rod 4; or two reinforcing rods can be set, one end of which is connected to the vertical rod 2 and the other end is connected to the horizontal rod 4, and one end of the other reinforcing rod is connected to the vertical rod 2 and the other end is connected to the top of the gas filling machine.

[0027] In order to ensure the safety of the staff, a sleeve can be provided at the sagging section of the traction rope 6, and a striking color or mark can be provided on the sleeve as a reminder to prevent the traction rope 6 from injuring people.

[0028] In this embodiment, the top of the gas filling machine serves as a fixed platform. In other embodiments of the utility model, the fixed platform may also be a hardened ground near the gas filling machine or the ceiling of a building where the gas filling machine is installed. One end of the horizontal rod 4 is vertically connected to the other end of the vertical rod 2 and is arranged to be rotatably connected. The puller 5 may also be arranged between the tension spring balancer 3 and the traction rope 6.

[0029] The above description is only a specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present utility model, and these modifications or substitutions should be included in the protection scope of the present utility model.

Claims

1. An LNG refueling operation assisting device, characterized in that: It comprises a vertical rod (2), a horizontal rod (4), a tension spring balancer (3), a traction rope (6) and a fixed platform; One end of the vertical rod (2) is connected to the fixed platform; One end of the horizontal rod (4) is connected to the other end of the vertical rod (2), and the height of the other end of the horizontal rod (4) is higher than the height of the gas filling machine; The upper end of the tension spring balancer (3) is connected to the other end of the horizontal rod (4), and the lower end of the tension spring balancer (3) is connected to the upper end of the traction rope (6); the lower end of the traction rope (6) is used to connect to the gas filling gun (1) of the gas filling machine; the fixed platform is a hardened ground near the gas filling machine, the ceiling of the building where the gas filling machine is installed, or the top of the gas filling machine.

2. According to claim 1, the LNG refueling operation assisting device is characterized by: It also comprises a breaker (5), which is arranged between the tension spring balancer (3) and the other end of the horizontal rod (4) through a connecting rope; the breaker (5) is arranged in the middle of the connecting rope.

3. The LNG refueling operation assisting device according to claim 1, characterized in that: It also comprises a breaker (5), wherein the breaker (5) is arranged between the tension spring balancer (3) and the traction rope (6).

4. The LNG refueling operation assisting device according to claim 1, characterized in that: The height of the upper end of the tension spring balancer (3) is higher than the height of the gas filling machine.

5. The LNG refueling operation assisting device according to claim 1, characterized in that: One end of the horizontal rod (4) is vertically connected to the other end of the vertical rod (2).

6. The LNG refueling operation assisting device according to any one of claims 1 to 5, characterized in that: It also includes a reinforcing rod, one end of which is connected to the vertical rod (2) and the other end of which is connected to the horizontal rod (4); or, it includes two reinforcing rods, one end of which is connected to the vertical rod (2) and the other end of which is connected to the horizontal rod (4), and one end of the other reinforcing rod is connected to the vertical rod (2) and the other end of which is connected to the fixed platform.

7. The LNG refueling operation assisting device according to claim 6, characterized in that: A warning sign of the longest moving distance is arranged on the traction rope (6), and a protective sleeve is sleeved on the outside of the traction rope (6).

8. The LNG refueling operation assisting device according to claim 7, characterized in that: The vertical rod (2) is rotatably connected to the fixed platform.

9. The LNG refueling operation assisting device according to claim 8, characterized in that: The traction rope (6) is fixed to the tail of the gas filling gun (1).

10. The LNG refueling operation assisting device according to claim 5, characterized in that: One end of the horizontal rod (4) is rotatably connected to the other end of the vertical rod (2).

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