A water injection and drainage device for a ring-shaped liquefied gas cylinder for vehicles

CN224607476UActive Publication Date: 2026-08-07WUXI JINGRUI MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI JINGRUI MASCH MFG CO LTD
Filing Date
2025-11-25
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0005]针对现有技术存在的问题,本实用新型提供了一种环形车用液化气瓶注水排水装置,具备快速高效注水排水、操作简便、适应不同规格气瓶的优点,解决了现有技术中人工注水排水时间长、余气残留、排水操作繁琐的问题

Benefits of technology

采用气路和水路分开的双管路设计,注水时气路排出瓶内聚集的气体,加速注水,排水时气路通入压缩空气,气压排水,大幅提高了注水排水的效率;

✦ Generated by Eureka AI based on patent content.

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    Figure CN224607476U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of annular vehicle liquefied gas cylinder water injection drainage devices, belong to vehicle gas cylinder production inspection technical field, including annular gas cylinder, further include inlet and outlet air pipe, locking screw, front section joint assembly, inlet and outlet water pipe, locking nut, rear section joint assembly, gas circuit quick connector, waterway quick connector, sealing gasket and sealing ring, the inlet and outlet air pipe and inlet and outlet water pipe are set on front section joint assembly, the front section joint assembly is connected with annular gas cylinder by locking screw, the inlet and outlet water pipe and inlet and outlet air pipe extend to rear section joint assembly, gas circuit quick connector and waterway quick connector are installed on the rear section joint assembly, the front section joint assembly and rear section joint assembly are connected by locking nut installation, the utility model has the technical effect that quick and efficient water injection drainage, easy operation, adapt to different specifications gas cylinder, reduce manual labor intensity, to effectively improve the production efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive gas cylinder production and inspection technology, and in particular relates to a ring-shaped automotive liquefied gas cylinder water injection and drainage device. Background Technology

[0002] Ring-shaped LPG cylinders (similar in shape to car tires) are primarily used for backup power in automobiles. Currently, the filling and draining of water in the production process of ring-shaped LPG cylinders is done manually.

[0003] The following problems exist in the manual water filling and draining process of existing ring-shaped vehicle-mounted liquefied gas cylinders: Firstly, when filling the cylinder with water, because the integrated valve of the annular vehicle liquefied gas cylinder is located in the middle of the cylinder body and the valve opening is lower than the highest part of the cylinder body, when the water level is filled to the upper part of the annular integrated valve, air accumulates in the upper part of the annular cavity, which prevents the cylinder from being filled with water. The only solution is to manually insert a tube to expel the air from the cylinder until it is filled with water. This method takes a long time to fill the cylinder, and a small amount of residual gas will still remain in the cylinder. Secondly, when draining water, the gas cylinder should be upright, the integrated valve should be placed at the lowest end, and an electric pump should be used to pump the water.

[0004] Therefore, a new type of ring-shaped vehicle-mounted liquefied gas cylinder water filling and draining device is needed. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a ring-shaped vehicle liquefied gas cylinder water injection and drainage device, which has the advantages of fast and efficient water injection and drainage, simple operation, and adaptability to different specifications of gas cylinders. It solves the problems of long manual water injection and drainage time, residual gas residue, and cumbersome drainage operation in the prior art.

[0006] This utility model is implemented as follows: a ring-shaped vehicle liquefied gas cylinder water filling and draining device includes a ring-shaped gas cylinder, and also includes an inlet and outlet gas pipe, a locking screw, a front connector assembly, an inlet and outlet water pipe, a locking nut, a rear connector assembly, a gas quick connector, a water quick connector, a sealing gasket, and a sealing ring. The inlet and outlet gas pipe and the inlet and outlet water pipe are disposed on the front connector assembly, which is connected to the ring-shaped gas cylinder by the locking screw. The inlet and outlet water pipe and the inlet and outlet gas pipe extend to the rear connector assembly, which is equipped with a gas quick connector and a water quick connector. The front connector assembly and the rear connector assembly are connected by a locking nut.

[0007] As a preferred embodiment of the present invention, the front connector assembly and the rear connector assembly are sealed together by a sealing gasket and a sealing ring.

[0008] This design effectively prevents leakage of the gas and water circuits, ensuring the sealing and reliability of the water injection and drainage process.

[0009] As a preferred embodiment of this invention, the inlet and outlet water pipes are inclined and extend to the bottom of the annular gas cylinder, and the inlet and outlet water pipes are retractable.

[0010] This design allows the bottle to be tilted to the bottom to completely drain the water, and the retractable structure can accommodate ring-shaped gas cylinders of different sizes, improving the device's versatility.

[0011] As a preferred embodiment of this invention, a float is provided at the top of the inlet / outlet pipe where it enters the inner cavity of the annular gas cylinder.

[0012] With this setting, the float keeps the vent pipe above the water surface during water filling, which helps to continuously expel gas from the inner cavity, ensuring smooth water filling without any residual gas.

[0013] As a preferred embodiment of this utility model, the inlet and outlet air pipes and the quick-connect air pipes form an air pipeline, and the inlet and outlet water pipes and the quick-connect water pipes form a water pipeline, so that the annular gas cylinder uses two separate pipelines for the air and water paths.

[0014] With this setup, the gas path discharges the gas accumulated inside the bottle during water injection to accelerate the injection process, and compressed air is introduced during drainage to pressurize the drainage; the water path is responsible for water injection and drainage. The dual-path separation improves the efficiency and stability of water injection and drainage.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: It adopts a dual-pipeline design with separate air and water circuits. When filling water, the air circuit discharges the gas accumulated in the bottle to accelerate water filling. When draining water, the air circuit introduces compressed air for air pressure drainage, which greatly improves the efficiency of water filling and drainage. The inlet and outlet water pipes are inclined to the bottom of the gas cylinder and are retractable, which not only ensures thorough drainage but also adapts to different sizes of ring-shaped gas cylinders, making them highly versatile. The float design at the top of the air inlet and outlet tubes ensures that the air outlet is always above the water surface during water filling, guaranteeing that the air inside the bottle is completely expelled and achieving the effect of quickly filling the bottle with water. The overall structure is simple and easy to operate. It eliminates the need for frequent manual intubation or upright gas cylinders, reducing the intensity of manual labor and thus effectively improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the disassembled structure provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model; Figure 3 This is a partially enlarged structural schematic diagram provided in an embodiment of this utility model.

[0017] In the diagram: 1. Ring-shaped gas cylinder; 2. Inlet and outlet gas pipes; 3. Locking screw; 4. Front connector assembly; 5. Inlet and outlet water pipes; 6. Locking nut; 7. Rear connector assembly; 8. Gas quick connector; 9. Water quick connector; 10. Sealing gasket; 11. Sealing ring. Detailed Implementation

[0018] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0019] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] refer to Figures 1 to 3 As shown in the figure, an embodiment of the present invention provides a ring-shaped vehicle liquefied gas cylinder water filling and draining device, including a ring-shaped gas cylinder 1, and further including an inlet and outlet gas pipe 2, a locking screw 3, a front connector assembly 4, an inlet and outlet water pipe 5, a locking nut 6, a rear connector assembly 7, a gas quick connector 8, a water quick connector 9, a sealing gasket 10, and a sealing ring 11. The inlet and outlet gas pipe 2 and the inlet and outlet water pipe 5 are disposed on the front connector assembly 4. The front connector assembly 4 is connected to the ring-shaped gas cylinder 1 by the locking screw 3. The inlet and outlet water pipe 5 and the inlet and outlet gas pipe 2 extend to the rear connector assembly 7. The rear connector assembly 7 is equipped with a gas quick connector 8 and a water quick connector 9. The front connector assembly 4 and the rear connector assembly 7 are connected by the locking nut 6.

[0021] Specifically, the front connector assembly 4 and the rear connector assembly 7 are sealed by a sealing gasket 10 and a sealing ring 11.

[0022] The above solution effectively prevents leakage of the gas and water circuits, ensuring the sealing and reliability of the water injection and drainage process.

[0023] Specifically, the inlet and outlet water pipes 5 are inclined and extend to the bottom of the annular gas cylinder 1, and the inlet and outlet water pipes 5 are retractable.

[0024] Using the above solution, tilting to the bottom facilitates the complete drainage of water from the bottle, and the telescopic structure can adapt to different sizes of annular gas cylinders 1, improving the versatility of the device.

[0025] Specifically, a float is provided at the top of the inlet / outlet pipe 2 where it enters the inner cavity of the annular gas cylinder 1.

[0026] Using the above method, the float ball keeps the vent pipe on the water surface during water injection, which facilitates the continuous discharge of gas from the inner cavity, ensuring smooth water injection without any residual gas.

[0027] Specifically, the inlet / outlet air pipe 2 and the quick-connect air connector 8 form an air pipeline, and the inlet / outlet water pipe 5 and the quick-connect water connector 9 form a water pipeline, so that the annular gas cylinder 1 uses two separate pipelines for the air and water lines.

[0028] The above scheme uses a gas path to expel the gas accumulated in the bottle during water injection to accelerate water injection, and a compressed air path to pressurize the drainage during drainage. The water path is responsible for water injection and drainage. The dual-path separation improves the efficiency and stability of water injection and drainage.

[0029] The working principle of this utility model: When using the equipment, during water filling: connect the water quick connector 9 to an external water source, and keep the air quick connector 8 open to the atmosphere. Water is poured into the annular gas cylinder 1 through the inlet / outlet water pipes 5. As the water level rises, the air in the annular gas cylinder 1 is discharged through the inlet / outlet air pipes 2. Because the float at the top of the inlet / outlet air pipes 2 keeps the exhaust port above the water surface, air can be continuously discharged until the annular gas cylinder 1 is full of water. The water filling process is efficient and leaves no residual air. During drainage: connect the air quick connector 8 to a compressed air source, and the water quick connector 9 to a drain pipe. Compressed air enters the annular gas cylinder 1 through the inlet / outlet air pipes 2, pressurizing the water in the cylinder. The water is discharged through the inlet / outlet water pipes 5 under air pressure. Because the inlet / outlet water pipes 5 are inclined at the bottom of the annular gas cylinder 1, the water can be completely discharged without the need to stand the cylinder upright. The operation is simple and efficient.

[0030] This device adopts a dual-pipeline design with separate air and water circuits. During water filling, the air circuit discharges the gas accumulated in the cylinder, accelerating the filling process. During drainage, compressed air is introduced into the air circuit for pressure drainage, significantly improving the efficiency of water filling and drainage. The inlet and outlet water pipes 5 are inclined to the bottom of the gas cylinder and are retractable, ensuring thorough drainage and adapting to different sizes of annular gas cylinders 1, making them highly versatile. The float design at the top of the inlet and outlet air pipes 2 ensures that the exhaust port is always above the water surface during water filling, ensuring complete air expulsion from the cylinder and achieving rapid filling. The overall structure is simple and easy to operate, eliminating the need for frequent manual insertion of pipes or uprighting of the gas cylinder, reducing manual labor intensity and effectively improving production efficiency.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 ring-shaped vehicle-mounted liquefied gas cylinder water injection and drainage device, comprising a ring-shaped gas cylinder (1), characterized in that: It also includes an inlet / outlet air pipe (2), a locking screw (3), a front connector assembly (4), an inlet / outlet water pipe (5), a locking nut (6), a rear connector assembly (7), a gas quick connector (8), a water quick connector (9), a sealing gasket (10), and a sealing ring (11). The inlet / outlet air pipe (2) and the inlet / outlet water pipe (5) are mounted on the front connector assembly (4). The front connector assembly (4) is connected to the annular gas cylinder (1) by the locking screw (3). The inlet / outlet water pipe (5) and the inlet / outlet air pipe (2) extend to the rear connector assembly (7). The rear connector assembly (7) is equipped with a gas quick connector (8) and a water quick connector (9). The front connector assembly (4) and the rear connector assembly (7) are connected by the locking nut (6).

2. The annular vehicle-mounted liquefied gas cylinder water injection and drainage device as described in claim 1, characterized in that: The front connector assembly (4) and the rear connector assembly (7) are sealed by a gasket (10) and a sealing ring (11).

3. The annular vehicle-mounted liquefied gas cylinder water injection and drainage device as described in claim 1, characterized in that: The inlet and outlet water pipes (5) are inclined and extend to the bottom of the annular gas cylinder (1), and the inlet and outlet water pipes (5) are retractable.

4. The annular vehicle-mounted liquefied gas cylinder water injection and drainage device as described in claim 1, characterized in that: A float is provided at the top of the inlet / outlet pipe (2) that enters the inner cavity of the annular gas cylinder (1).

5. The annular vehicle-mounted liquefied gas cylinder water injection and drainage device as described in claim 1, characterized in that: The inlet and outlet air pipes (2) and the quick-connect air pipes (8) form an air pipeline, and the inlet and outlet water pipes (5) and the quick-connect water pipes (9) form a water pipeline, so that the annular gas cylinder (1) adopts two separate pipelines for air and water.