Leakage-proof liquefied petroleum gas storage and transportation quick connecting device

Abstract

The utility model relates to liquefied petroleum gas technical field, concretely is a kind of anti-leakage type liquefied petroleum gas storage and transportation quick connecting device, including fastening shell, the inner wall of fastening shell is detachably connected with the rubber sleeve for sealing, the inner wall of one end of rubber sleeve is detachably connected with transmission pipe, the upper end of fastening shell is symmetrically provided with the limiting shell for positioning, the inner wall of limiting shell is clamped with positioning block, the inner wall of positioning block is inserted with the fastening column for fixing. The anti-leakage type liquefied petroleum gas storage and transportation quick connecting device is cooperatively arranged by fastening shell, transmission pipe and rubber sleeve, in use, rubber sleeve fills the gap between fastening shell and transmission pipe by its elasticity, tightly adheres to the contact surface of both, blocks the path of liquefied petroleum gas leakage from connecting gap, and simultaneously, through the cooperative arrangement of limiting shell, positioning block and fastening column, fastening shell can be further reinforced.

Description

Technical Field

[0001] This utility model relates to the field of liquefied petroleum gas technology, specifically a leak-proof liquefied petroleum gas storage and transportation quick connection device. Background Technology

[0002] Liquefied petroleum gas (LPG) is a mixture of low-carbon hydrocarbons, primarily composed of propane and butane. It is typically a byproduct of natural gas extraction or petroleum refining, such as crude oil distillation or catalytic cracking. While gaseous at room temperature and pressure, it can be converted into a liquid state through pressurization or cooling. LPG is widely used in residential, industrial, and transportation sectors due to its ease of storage and transportation, high energy density, and clean combustion. In the LPG transfer process, such as unloading from tank trucks to gas station storage tanks, refilling on-board cylinders, and transferring LPG between intermediate tanks in factories, quick-connect devices are needed to connect transfer equipment (e.g., tank truck pipelines and refill nozzles) with external storage equipment (e.g., gas station tanks, on-board cylinders, and factory storage tanks). This ensures the safe and efficient flow of liquid or gaseous LPG and is a crucial component connecting the transfer and storage processes.

[0003] However, existing technologies have the following problems in practical use;

[0004] Traditional equipment typically uses flange threaded connections, which are prone to wear on the sealing surfaces. Uneven bolt stress can also easily lead to leaks at the connection points, resulting in gas waste and posing safety risks such as combustion, explosion, and poisoning. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a leak-proof liquefied petroleum gas storage and transportation quick connection device, which solves the problem mentioned in the background art that the traditional equipment generally uses flange thread connection when in use, the sealing surface of which is easy to wear, and the bolts are unevenly stressed, which can easily lead to leakage at the connection, resulting in gas waste and safety risks such as combustion, explosion and poisoning.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a leak-proof liquefied petroleum gas storage and transportation quick connection device, comprising a fastening shell, wherein a rubber sleeve for sealing is detachably connected to the inner wall of the fastening shell, a transmission pipe is detachably connected to the inner wall of one end of the rubber sleeve, and a positioning shell for positioning is symmetrically arranged at the upper end of the fastening shell, a positioning block is snapped into the inner wall of the positioning shell, and a fastening post for fixing is inserted into the inner wall of the positioning block.

[0009] Preferably, one end of the fastening post is detachably connected to a threaded post for fixing, and the outer surface of one end of the threaded post is provided with friction texture for anti-slip.

[0010] Preferably, one end of the transmission tube is threadedly connected to a connecting tube for positioning, and a rubber gasket for sealing is provided on one side of the connecting tube.

[0011] Preferably, the connecting tube has a quick connector for transmission inside, and the outer surface of the quick connector has a groove for limiting positioning.

[0012] Preferably, the inner wall of the connecting pipe is fixedly connected with a protrusion for positioning, and the outer surface of the protrusion engages with the inner wall of the groove.

[0013] Preferably, one end of the transmission tube is fixedly connected to a retaining tube for fixing, and the outer surface of the retaining tube is provided with anti-slip texture.

[0014] Preferably, a load-bearing plate is fixedly connected to the lower end of the fastening shell, and a damping rod for buffering is detachably attached to the lower end of the load-bearing plate.

[0015] Preferably, a spring for resetting is sleeved on the outer surface of the damping rod, and a buffer plate is detachably connected to the lower end of the damping rod.

[0016] (III) Beneficial Effects

[0017] This utility model provides a leak-proof quick connection device for liquefied petroleum gas storage and transportation, which has the following beneficial effects:

[0018] This leak-proof liquefied petroleum gas (LPG) storage and transportation quick connection device, through the coordinated arrangement of a fastening shell, a transmission pipe, and a rubber sleeve, ensures that during use, the rubber sleeve, through its own elasticity, fills the gap between the fastening shell and the transmission pipe, tightly fitting the contact surfaces of both and blocking the path of LPG leakage from the connection gap. Simultaneously, the coordinated arrangement of a limiting shell, a positioning block, and a fastening column further reinforces the fastening shell, preventing the transmission pipe from detaching due to excessive impact force from LPG during transmission. This improves connection stability, avoids leaks at the connection point, prevents gas waste, and avoids safety risks such as combustion, explosion, and poisoning. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the fastening shell structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the rubber sleeve structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting pipe structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the protrusion structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the buffer plate structure of this utility model.

[0025] In the diagram: 1. Fastening shell; 2. Rubber sleeve; 3. Transmission pipe; 4. Limiting shell; 5. Positioning block; 6. Fastening post; 7. Threaded post; 8. Connecting pipe; 9. Rubber pad; 10. Quick connector; 11. Groove; 12. Protrusion; 13. Snap-fit ​​pipe; 14. Load plate; 15. Damping rod; 16. Spring; 17. Buffer plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Example 1;

[0028] Please see Figures 1 to 5 This utility model provides a technical solution: a leak-proof liquefied petroleum gas (LPG) storage and transportation quick connection device. This leak-proof LPG storage and transportation quick connection device is mainly used in LPG transmission scenarios. It includes a fastening shell 1, with a detachable rubber sleeve 2 for sealing connected to the inner wall of the fastening shell 1. A transmission pipe 3 is detachably connected to the inner wall of one end of the rubber sleeve 2. A connecting pipe 8 for positioning is threaded to one end of the transmission pipe 3. A rubber gasket 9 for sealing is provided on one side of the connecting pipe 8. A quick connector 10 for transmission is snapped into the inside of the connecting pipe 8. A groove 11 for limiting the connection is formed on the outer surface of the quick connector 10. The inner wall of the tube 8 is fixedly connected with a protrusion 12 for positioning. The outer surface of the protrusion 12 engages with the inner wall of the groove 11. At the same time, the connecting tube 8 is fixed to the transmission tube 3 by a threaded connection, providing installation space for the quick connector 10 and realizing the connection between different transmission components. In addition, the rubber gasket 9 is an auxiliary sealing element, which is set on one side of the connecting tube 8 to fill the gap between the mating contact surfaces of the connecting tube 8 and the quick connector 10, further enhancing the sealing performance and reducing the risk of leakage. At the same time, the cooperation between the protrusion 12 and the groove 11 restricts the axial movement of the quick connector 10 in the connecting tube 8 through the snap-fit ​​structure, preventing the quick connector 10 from falling off during gas transmission or vibration.

[0029] Example 2;

[0030] Please see Figures 1 to 2The upper end of the fastening shell 1 is symmetrically provided with a positioning limit shell 4. The inner wall of the positioning shell 4 is snapped with a positioning block 5. The inner wall of the positioning block 5 is inserted with a fastening post 6 for fixing. One end of the fastening post 6 is detachably connected to a threaded post 7 for fixing. The outer surface of one end of the threaded post 7 is provided with friction texture for anti-slip. At the same time, the threaded post 7 and the fastening post 6 cooperate to achieve detachable fixing. The friction texture on its outer surface can increase the grip friction of the hand or tool, making it easy to tighten during installation or loosen during disassembly, while enhancing the anti-loosening effect after fixing.

[0031] Example 3;

[0032] Please see Figures 2 to 6 One end of the transmission pipe 3 is fixedly connected to a clamping pipe 13 for fixation. The outer surface of the clamping pipe 13 is provided with anti-slip texture. The lower end of the fastening shell 1 is fixedly connected to a load-bearing plate 14. The lower end of the load-bearing plate 14 is detachably connected to a damping rod 15 for buffering. The outer surface of the damping rod 15 is sleeved with a spring 16 for reset. The lower end of the damping rod 15 is detachably connected to a buffer plate 17. At the same time, the clamping pipe 13 is fixed to one end of the transmission pipe 3 for clamping connection with other pipes or equipment interfaces. The anti-slip texture on its outer surface can increase the friction during connection, improve the stability after clamping, and prevent... The load-bearing plate 14 is fixed to the lower end of the fastening shell 1, which serves to bear and distribute the overall weight of the device. At the same time, it provides a mounting base for the damping rod 15, enhancing the stability of the bottom of the device. The combination of the damping rod 15 and the spring 16 can absorb the vibration generated during storage and transportation, reduce the impact of vibration on the connection parts, and prevent the components from loosening due to vibration. The buffer plate 17 is installed at the lower end of the damping rod 15 and directly contacts the placement surface, further dispersing and transmitting the vibration absorbed by the damping rod 15 to the placement surface. At the same time, it prevents the damping rod 15 from being directly damaged by friction with the placement surface, thus extending the service life of the components.

[0033] In this invention, the working steps of the device are as follows:

[0034] First, press the rubber gasket 9 on one side of the connecting pipe 8 firmly against the mating surface of the connecting pipe 8. Then, tighten the connecting pipe 8 and one end of the transmission pipe 3 using the threaded connection until there is no looseness between the connecting pipe 8 and the transmission pipe 3. At this point, snap the quick connector 10 into the inside of the connecting pipe 8, and the rubber gasket 9 at the mating point is compressed, forming the first auxiliary seal. Next, put the rubber sleeve 2 into the inner wall of the fastening shell 1, ensuring that the rubber sleeve 2 fits tightly against the inner wall of the fastening shell 1. Then, snap the transmission pipe 3 and the connecting pipe 8 into the inner wall of the rubber sleeve 2, so that the transmission pipe 3 and the connecting pipe 8 are connected. The tube 8 and the rubber sleeve 2 are seamlessly connected, initially achieving sealing and fixation. The positioning block 5 is aligned with the limiting shell 4 symmetrically arranged on the upper end of the fastening shell 1. The positioning block 5 is inserted into the inner wall of the limiting shell 4 to ensure that the positioning block 5 and the limiting shell 4 are firmly engaged without any shaking. The fastening post 6 is inserted into the inner wall of the positioning block 5. The position of the fastening post 6 is adjusted to make the fastening shell 1 fasten, which compresses the rubber sleeve 2 inside itself, thereby forming a seal. Then, the threaded post 7 is detachably connected to one end of the fastening post 6 to fix and limit the position of the fastening post 6.

[0035] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof liquefied petroleum gas storage and transportation quick connection device, comprising a fastening shell (1), characterized in that: The inner wall of the fastening shell (1) is detachably connected to a rubber sleeve (2) for sealing. The inner wall of one end of the rubber sleeve (2) is detachably connected to a transmission pipe (3). The upper end of the fastening shell (1) is symmetrically provided with a positioning shell (4) for positioning. The inner wall of the positioning shell (4) is snapped with a positioning block (5). The inner wall of the positioning block (5) is inserted with a fastening post (6) for fixing.

2. The leak-proof liquefied petroleum gas storage and transportation quick connection device according to claim 1, characterized in that: One end of the fastening post (6) is detachably connected to a threaded post (7) for fixing, and the outer surface of one end of the threaded post (7) is provided with friction texture for anti-slip.

3. The leak-proof liquefied petroleum gas storage and transportation quick connection device according to claim 1, characterized in that: One end of the transmission tube (3) is threadedly connected to a connecting tube (8) for positioning, and a rubber gasket (9) for sealing is provided on one side of the connecting tube (8).

4. The leak-proof liquefied petroleum gas storage and transportation quick connection device according to claim 3, characterized in that: The connecting pipe (8) is fitted with a quick connector (10) for transmission, and the outer surface of the quick connector (10) is provided with a groove (11) for limiting.

5. A leak-proof liquefied petroleum gas storage and transportation quick connection device according to claim 4, characterized in that: The inner wall of the connecting pipe (8) is fixedly connected with a protrusion (12) for positioning, and the outer surface of the protrusion (12) engages with the inner wall of the groove (11).

6. The leak-proof liquefied petroleum gas storage and transportation quick connection device according to claim 1, characterized in that: One end of the transmission tube (3) is fixedly connected to a retaining tube (13) for fixing, and the outer surface of the retaining tube (13) is provided with anti-slip texture.

7. The leak-proof liquefied petroleum gas storage and transportation quick connection device according to claim 1, characterized in that: The lower end of the fastening shell (1) is fixedly connected to a load plate (14), and the lower end of the load plate (14) is detachably equipped with a damping rod (15) for buffering.

8. A leak-proof liquefied petroleum gas storage and transportation quick connection device according to claim 7, characterized in that: The outer surface of the damping rod (15) is fitted with a spring (16) for resetting, and the lower end of the damping rod (15) is detachably connected to a buffer plate (17).

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