Leakage-proof gas filling device

By introducing components such as extruders, damping springs, contact sensors, and sealing gaskets into the gas filling device, and combining them with a hydraulic cylinder to drive the lifting plate, the leakage problem caused by excessive gas pressure during the gas filling process is solved, thereby improving safety and efficiency.

CN224018172UActive Publication Date: 2026-03-20QINGDAO SAINS GAS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing gas filling devices have high gas pressure when the gas inside the cylinder is close to full, which poses a safety hazard and may lead to leakage.

Method used

A leak-proof gas filling device was designed, comprising a main body and an installation mechanism. Utilizing components such as a compression component, damping spring, contact sensor, and sealing gasket, the device uses a contact sensor to trigger an indicator light to prompt the operator to replace the gas. Combined with a hydraulic cylinder driving a lifting plate to embed into the filling port, the device ensures that the gas does not leak and dissipates heat through a heat dissipation window.

Benefits of technology

It effectively prevents gas leakage, enhances equipment safety, ensures the stability and safety of the filling process, reduces human intervention, and improves filling efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of gas filling, and discloses an anti-leakage gas filling device which comprises a main body mechanism and an installation mechanism, the installation mechanism is located at the inner end of the main body mechanism, the main body mechanism comprises a machine body, an inflation inlet, a filling assembly, a jacking plate and an air extracting pump, the inflation inlet is fixedly formed in the inner end of the machine body, and the air extracting pump is arranged in the machine body. The filling assembly is movably installed on the inner side of the inflation inlet. According to the anti-leakage gas filling device, a main body mechanism is installed, a user places a gas collecting bottle at the upper end of a jacking plate, a bottle opening is embedded into the inner side of a gas filling opening, gas collection is started, gas enters the gas collecting bottle through a gas inlet, and when the gas pressure in the gas collecting bottle rises, an extrusion piece extrudes upwards, a damping spring and a buffer spring contract, the gas is filled into the gas collecting bottle; and the gas collecting bottle is buffered until the gas collecting bottle touches the contact sensor, the prompting lamp is turned on, a worker is prompted to replace the gas collecting bottle out, and the safety of the device is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of gas filling technology, specifically to a leak-proof gas filling device. Background Technology

[0002] Gas filling equipment is used to fill gas (such as oxygen, nitrogen, argon, etc.) into pressure vessels or gas cylinders. Currently, most of these processes are still manual, whether it is cylinder handling, cylinder loading and unloading, hose loading and unloading, or valve / equipment operation.

[0003] Existing patent CN117489977A discloses a rare gas filling device. This invention includes a housing with a clamping sleeve on it, a transverse plate at the lower part of the housing, and a working position along the displacement stroke of the transverse plate. It also includes a transmission unit for driving the transverse plate to the working position; and a switching structure connected to the clamping sleeve via an adaptive adjustment component. When the transverse plate reaches the working position, the switching structure receives transmission from the transmission unit to drive the clamping sleeve to fix the gas cylinder. This invention provides a rare gas filling device that transports gas cylinders to the working position via the movement of the transverse plate. The clamping sleeve automatically descends to clamp the gas cylinder, ensuring stability during filling. The adaptive adjustment component can adaptively adjust the height of the clamping sleeve according to the different sizes of gas cylinders, reducing human intervention and improving filling efficiency.

[0004] However, although the existing patent CN117489977A can adaptively adjust the height of the clamping sleeve to adapt to different sizes of steel cylinders, reduce human interference, and improve filling efficiency, when the gas inside the steel cylinder is filled and approaches full capacity, its internal gas pressure is high, and failure to seal it in time may pose some safety hazards. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a leak-proof gas filling device to solve the problem mentioned in the background art where, when the gas inside the cylinder is filled to near full capacity, the internal gas pressure is high, and failure to seal it in time may pose some safety hazards.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof gas filling device, comprising a main body and an installation mechanism, wherein the installation mechanism is located at the inner end of the main body, the main body comprising a body, an inflation port, a filling assembly, a lifting plate, and a vacuum pump, wherein the inflation port is fixedly disposed at the inner end of the body, the filling assembly is movably disposed on the inner side of the inflation port, the lifting plate is movably disposed inside the body, and the vacuum pump is fixedly disposed at the rear of the body; the filling assembly comprises a pressing component, an air inlet, and a damping spring, wherein the pressing component is movably disposed on the inner side of the inflation port, the air inlet is fixedly disposed at the inner end of the inflation port, and the damping spring is movably disposed in the middle of the pressing component and the air inlet.

[0009] Preferably, the filling assembly further includes a fixed shaft, a telescopic column, a buffer spring, a contact sensor, a sealing gasket, and an indicator light. The fixed shaft is fixedly installed on the upper end of the extrusion member. The user places the gas collection bottle on the upper end of the lifting plate, inserts the bottle mouth into the inside of the filling port, and begins to collect gas.

[0010] Preferably, the telescopic column is movably installed at the upper end of the fixed shaft, and the buffer spring is movably installed on the outside of the fixed shaft. Gas enters the interior of the gas collecting bottle through the air inlet. When the gas pressure inside the gas collecting bottle increases, the extruder pushes upward, and the damping spring and buffer spring contract to buffer the gas collecting bottle until the gas collecting bottle touches the contact sensor.

[0011] Preferably, the contact sensor is fixedly installed at the lower end of the air inlet, and the sealing gasket is fixedly installed at the lower end of the extrusion component. When the gas collecting bottle touches the contact sensor, the indicator light illuminates, prompting the operator to replace it.

[0012] Preferably, the indicator light is fixedly installed on the outer end of the device body, and the indicator light signal is connected to the contact sensor. The installation of the sealing gasket can prevent the leakage of gas inside the gas collecting bottle, effectively improving the safety of the device.

[0013] Preferably, the installation mechanism includes a hydraulic cylinder, a push rod, and a heat dissipation window. The hydraulic cylinder is fixedly installed at the lower end of the inner end of the machine body. When the hydraulic cylinder is activated, it drives the push rod to push the lifting plate upward, so that the bottle mouth of the lifting plate is fully embedded in the inflation port, effectively improving the safety of the device. The push rod is movably installed at the upper end of the hydraulic cylinder, and the heat dissipation window is fixedly installed on the outer side of the machine body. The heat dissipation window facilitates heat dissipation inside the machine body, effectively improving the safety of the device.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This leak-proof gas filling device, through the installation of the main structure, allows the user to place the gas collecting bottle on the top of the lifting plate, insert the bottle mouth into the inside of the filling port, and begin gas collection. Gas enters the interior of the gas collecting bottle through the air inlet. When the internal gas pressure of the gas collecting bottle increases, the extrusion component presses upward, and the damping spring and buffer spring contract to buffer the gas collecting bottle until it touches the contact sensor. The signal is transmitted to make the indicator light light up, prompting the staff to replace it. The installation of the sealing gasket can prevent the gas inside the gas collecting bottle from leaking, effectively improving the safety of the device.

[0016] 2. This leak-proof gas filling device, through the installation of the mounting mechanism, activates the hydraulic cylinder, drives the push rod to move the lifting plate upward, so that the bottle mouth of the lifting plate is fully embedded in the filling port. The setting of the heat dissipation window facilitates heat dissipation inside the machine body, effectively improving the safety of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the air inlet of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the body of this utility model;

[0020] Figure 4 This is a partial cross-sectional structural diagram of the filling component of this utility model.

[0021] In the diagram: 1. Main structure; 101. Body; 102. Inflation port; 103. Filling assembly; 1031. Extrusion piece; 1032. Air inlet; 1033. Damping spring; 1034. Fixed shaft; 1035. Telescopic column; 1036. Buffer spring; 1037. Contact sensor; 1038. Sealing gasket; 1039. Indicator light; 104. Lifting plate; 105. Air pump; 2. Installation mechanism; 201. Hydraulic cylinder; 202. Push rod; 203. Heat dissipation window. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4This utility model provides a technical solution: a leak-proof gas filling device, including a main body 1 and an installation mechanism 2. The installation mechanism 2 is located at the inner end of the main body 1. The main body 1 includes a body 101, an inflation port 102, a filling component 103, a lifting plate 104, and a vacuum pump 105. The inflation port 102 is fixedly installed at the inner end of the body 101. The filling component 103 is movably installed inside the inflation port 102. The lifting plate 104 is movably installed inside the body 101. The vacuum pump 105 is fixedly installed at the rear of the body 101. The filling component 103 includes a compression member 1031, an air inlet 1032, and a damping spring 1033. The compression member 1031 is movably installed inside the inflation port 102. The air inlet 1032 is fixedly installed at the inner end of the inflation port 102. The damping spring 1033 is movably installed between the compression member 1031 and the air inlet 1032. In the middle of component 32, the filling assembly 103 also includes a fixed shaft 1034, a telescopic column 1035, a buffer spring 1036, a contact sensor 1037, a sealing gasket 1038, and an indicator light 1039. The fixed shaft 1034 is fixedly installed on the upper end of the extrusion component 1031, the telescopic column 1035 is movably installed on the upper end of the fixed shaft 1034, the buffer spring 1036 is movably installed on the outside of the fixed shaft 1034, the contact sensor 1037 is fixedly installed on the lower end of the air inlet 1032, the sealing gasket 1038 is fixedly installed on the lower end of the extrusion component 1031, and the indicator light 1039 is fixedly installed on the outer end of the body 101. The indicator light 1039 is signal-connected to the contact sensor 1037. When the contact sensor 1037 comes into contact with the gas collecting bottle, it transmits a signal to the indicator light 1039, thereby providing a reminder to the staff and enhancing its practicality.

[0024] Among them, such as Figure 3 As shown, the installation mechanism 2 includes a hydraulic cylinder 201, a push rod 202, and a heat dissipation window 203. The hydraulic cylinder 201 is fixedly installed at the lower end of the inner end of the body 101, the push rod 202 is movably installed at the upper end of the hydraulic cylinder 201, and the heat dissipation window 203 is fixedly installed on the outer side of the body 101. When using the leak-proof gas filling device, the user places the gas collecting bottle on the upper end of the lifting plate 104, inserts the bottle mouth into the inner side of the filling port 102, and begins to collect gas. Gas enters the interior of the gas collecting bottle through the air inlet 1032. When the internal gas pressure of the gas collecting bottle rises... When the pressure is high, the extrusion component 1031 presses upward, the damping spring 1033 and the buffer spring 1036 contract, buffering the gas collecting bottle until the gas collecting bottle touches the contact sensor 1037, the indicator light 1039 lights up, prompting the staff to replace it. The installation of the sealing gasket 1038 can prevent the gas inside the gas collecting bottle from leaking. The hydraulic cylinder 201 is started, driving the push rod 202 to push the lifting plate 104 upward, so that the bottle mouth of the lifting plate 104 is fully embedded in the air filling port 102. The setting of the heat dissipation window 203 facilitates the heat dissipation inside the machine body 101.

[0025] Working principle: When using the gas filling device, the user places the gas collecting bottle on the upper end of the lifting plate 104, inserts the bottle mouth into the inside of the filling port 102, and begins gas collection. Gas enters the inside of the gas collecting bottle through the air inlet 1032. When the gas pressure inside the gas collecting bottle increases, the extrusion member 1031 presses upward, and the damping spring 1033 and buffer spring 1036 contract to buffer the gas collecting bottle until the gas collecting bottle touches the contact sensor 1037. The indicator light 1039 lights up, prompting the operator to replace it. The installation of the sealing gasket 1038 can prevent the gas inside the gas collecting bottle from leaking. The hydraulic cylinder 201 is activated, driving the push rod 202 to push the lifting plate 104 upward, so that the bottle mouth of the lifting plate 104 is fully inserted into the filling port 102. The setting of the heat dissipation window 203 facilitates heat dissipation inside the machine body 101.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A leak-proof gas filling device, comprising a main body (1) and an installation mechanism (2), characterized in that: The installation mechanism (2) is located at the inner end of the main body (1). The main body (1) includes a body (101), an air inlet (102), a filling component (103), a lifting plate (104), and a vacuum pump (105). The air inlet (102) is fixedly installed at the inner end of the body (101). The filling component (103) is movably installed inside the air inlet (102). The lifting plate (104) is movably installed inside the body (101). The vacuum pump (105) is fixedly installed at the rear of the body (101). The filling assembly (103) includes a pressing member (1031), an air inlet (1032), and a damping spring (1033). The pressing member (1031) is movably installed inside the air inlet (102), the air inlet (1032) is fixedly installed at the inner end of the air inlet (102), and the damping spring (1033) is movably installed in the middle of the pressing member (1031) and the air inlet (1032).

2. The leak-proof gas filling device according to claim 1, characterized in that: The filling assembly (103) also includes a fixed shaft (1034), a telescopic column (1035), a buffer spring (1036), a contact sensor (1037), a sealing gasket (1038), and an indicator light (1039), wherein the fixed shaft (1034) is fixedly installed on the upper end of the extruder (1031).

3. The leak-proof gas filling device according to claim 2, characterized in that: The telescopic column (1035) is movably installed on the upper end of the fixed shaft (1034), and the buffer spring (1036) is movably installed on the outside of the fixed shaft (1034).

4. The leak-proof gas filling device according to claim 3, characterized in that: The contact sensor (1037) is fixedly installed at the lower end of the air inlet (1032), and the sealing gasket (1038) is fixedly installed at the lower end of the extrusion piece (1031).

5. A leak-proof gas filling device according to claim 4, characterized in that: The indicator light (1039) is fixedly installed on the outer end of the body (101), and the indicator light (1039) is connected to the contact sensor (1037).

6. A leak-proof gas filling device according to claim 5, characterized in that: The installation mechanism (2) includes a hydraulic cylinder (201), a push rod (202), and a heat dissipation window (203). The hydraulic cylinder (201) is fixedly installed at the lower end of the inner end of the machine body (101). The push rod (202) is movably installed at the upper end of the hydraulic cylinder (201). The heat dissipation window (203) is fixedly installed on the outer side of the machine body (101).