A high-efficiency gas filling device for steel cylinders

Abstract

This utility model discloses a high-efficiency gas cylinder filling device, relating to the field of gas cylinder filling technology. It addresses the problem in existing technologies where fixing devices are used to secure individual gas cylinders, requiring cylinder replacement after filling and subsequent filling, resulting in low filling efficiency. The device comprises a circular base with a rotatable annular rotating support seat at its upper end. A fixing ring is fixedly connected to the center of the upper surface of the annular rotating support seat. Multiple support columns are fixedly arranged in a circular array on the upper surface of the annular rotating support seat, outside the fixing ring. Each support column has a semi-circular fixing ring at its center and upper end on its outer end face. Each semi-circular fixing ring is rotatably connected to a semi-circular rotating retaining ring on its outer side. By setting up a rotatable annular rotating support seat and multiple support columns, continuous gas cylinder filling is achieved. Operators can load and unload gas cylinders at one station while simultaneously performing filling operations at another, significantly improving filling efficiency.

Description

Technical Field

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

[0002] Gas cylinder filling refers to the process of filling compressed or liquefied gases into pressure-resistant steel containers using specialized equipment. It is widely used in industrial, medical, and energy fields. Before filling, the integrity of the cylinder, valve sealing, and residual gas testing must be performed to ensure compliance with safety standards. During operation, a high-pressure pump or compressor is used to pressurize the gas (such as oxygen, nitrogen, argon, or liquefied petroleum gas) and inject it into the cylinder until the rated working pressure is reached. After filling, an airtightness test and weight verification are required to prevent overpressure or leakage. Cylinders must be inspected regularly and labeled with the filling date, gas type, and pressure parameters. The entire process strictly adheres to regulations such as the "Gas Cylinder Safety Technical Regulations" to ensure safe storage and transportation. Cylinders must be secured using fixing devices during filling.

[0003] For example, patent announcement number CN217978366U discloses a gas cylinder filling and fixing device, including a bracket. A U-shaped guide groove is fixedly connected to the top of the bracket, a gas cylinder conforming pressure plate A is fixedly connected to one side, and a pull-rod type cylinder is fixedly connected to the other side. The end of the telescopic rod of the pull-rod type cylinder is fixedly connected to a gas cylinder conforming pressure plate B, which is positioned opposite to the gas cylinder conforming pressure plate A. The pull-rod type cylinder is connected to a foot valve at the bottom of the bracket via an air pipe. This utility model's gas cylinder fixing device uses a U-shaped guide groove structure to facilitate workers quickly and accurately placing the gas cylinder in a fixed position. The foot valve controls the extension and retraction of the cylinder, causing the gas cylinder conforming pressure plate B to move, cooperating with the gas cylinder conforming pressure plate A to fix the gas cylinder. The structure is simple, easy to operate, and has low manufacturing cost.

[0004] However, the above-mentioned technology uses a fixing device to fix a single gas cylinder. After the gas cylinder is filled, it needs to be replaced and filled again, resulting in low filling efficiency. Therefore, the market urgently needs to develop a high-efficiency gas cylinder filling device to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency gas cylinder filling device to solve the problem mentioned in the background art that the fixing device is used to fix a single gas cylinder, and after the gas cylinder is filled, it is necessary to replace the gas cylinder and fill it again, resulting in low filling efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency gas filling device for steel cylinders, comprising a circular base, an annular rotating support seat rotatably connected to the upper end of the circular base, a fixing ring fixedly connected to the middle of the upper surface of the annular rotating support seat, and multiple support columns fixedly connected in an annular array to the upper surface of the annular rotating support seat and outside the fixing ring, with a semi-circular fixing ring provided at the middle and upper end of the outer end face of each support column, and a semi-circular rotating retaining ring rotatably connected to the outer side of each semi-circular fixing ring.

[0007] Preferably, the upper end of the circular base and the lower end of the annular rotary support are connected by a slewing bearing.

[0008] Preferably, a stepper motor is fixedly installed at the upper middle part of the base, a gear is fixedly connected to the upper end of the output shaft of the stepper motor, and an inner ring gear is fixedly connected to the upper end of the inner wall of the fixing ring.

[0009] Preferably, the gear at the upper end of the stepper motor output shaft extends into the upper end of the fixed ring and meshes with the teeth of the inner ring gear.

[0010] Preferably, the semicircular fixing ring is fixedly connected to the support column, and one side of the semicircular fixing ring and one side of the semicircular rotating retaining ring are rotatably connected by a rotating shaft.

[0011] Preferably, a first connecting block is fixedly connected to the other side of the semicircular fixing ring, an internally threaded pipe is fixedly connected to the middle of the first connecting block, and a second connecting block is fixedly connected to the other side of the semicircular rotating retaining ring.

[0012] Preferably, the first connecting block and the second connecting block are fixed by bolts passing through the middle of the second connecting block and then inserted into the internal thread of the internal threaded pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by setting a rotatable annular rotating support base and multiple support column structures, continuous gas filling operation of steel cylinders is realized. Operators can load and unload steel cylinders at the front station while performing gas filling operation at the rear station, which significantly improves gas filling efficiency and solves the problem of low efficiency of traditional single-station gas filling devices.

[0015] (2) In this utility model, a combination of a semi-circular fixing ring and a rotating snap ring is used for fixing, along with a bolt quick-locking mechanism, which not only ensures the reliability of the cylinder fixing, but also realizes the quick loading and unloading of the cylinder, simplifies the operation process and improves work efficiency.

[0016] (3) In this utility model, the stepper motor drives the gear and the inner ring gear to mesh and transmit, and the slewing bearing achieves precise intermittent rotation positioning, ensuring that each station can accurately align with the inflation interface. At the same time, the overall structure is compact and the operation is stable, making it suitable for batch inflation of steel cylinders of different specifications. Attached Figure Description

[0017] Figure 1 This is a front view of a high-efficiency gas filling device for steel cylinders according to the present invention;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a top sectional view of the semi-circular rotating retaining ring of this utility model;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Circular base; 101. Stepper motor; 102. Gear; 2. Annular rotary support; 201. Slewing bearing; 202. Fixing ring; 203. Inner ring gear; 3. Support column; 301. Semicircular fixing ring; 302. First connecting block; 303. Internally threaded pipe; 4. Semicircular rotating retaining ring; 401. Rotating shaft; 402. Second connecting block; 403. Bolt. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4This utility model provides an embodiment of a high-efficiency gas cylinder filling device, comprising a circular base 1, an annular rotating support 2 rotatably connected to the upper end of the circular base 1, a fixing ring 202 fixedly connected to the middle of the upper end face of the annular rotating support 2, and a plurality of support columns 3 fixedly connected in an annular array to the upper end face of the annular rotating support 2 and outside the fixing ring 202. A semi-circular fixing ring 301 is provided at the middle and upper end of the outer end face of each support column 3, and a semi-circular rotating retaining ring 4 is rotatably connected to the outer side of each semi-circular fixing ring 301. The semi-circular fixing ring 301 is fixedly connected to the support column 3, and one side of the semi-circular fixing ring 301 and one side of the semi-circular rotating retaining ring 4 are rotatably connected via a rotating shaft 401, allowing the semi-circular rotating retaining ring 4 to be opened outwards by rotating the rotating shaft 401. A first connecting block 302 is fixedly connected to the side, and an internally threaded tube 303 is fixedly connected to the middle of the first connecting block 302. A second connecting block 402 is fixedly connected to the other side of the semi-circular rotating retainer 4. The first connecting block 302 and the second connecting block 402 are fixedly connected by a bolt 403 passing through the middle of the second connecting block 402 and then inserted into the internal thread of the internally threaded tube 303. After the personnel place the gas cylinder on the annular rotating support 2, the lower end and the middle part of the gas cylinder are respectively placed inside the two semi-circular fixing rings 301 at the front end of the support column 3. The two semi-circular rotating retainers 4 are then rotated again by the rotating shaft 401 to close the two semi-circular fixing rings 301 respectively. At the same time, the first connecting block 302 and the second connecting block 402 are fixed by the bolt 403, so that the semi-circular rotating retainer 4 and the semi-circular fixing rings 301 fix the gas cylinder.

[0024] Please see Figure 1 and Figure 2 The upper end of the circular base 1 is connected to the lower end of the annular rotary support 2 via a slewing bearing 201, allowing the annular rotary support 2 to rotate on the upper end of the circular base 1. A stepper motor 101 is fixedly mounted in the middle of the upper end of the base 1. A gear 102 is fixedly connected to the upper end of the output shaft of the stepper motor 101. An inner ring gear 203 is fixedly connected to the upper end of the inner wall of the fixed ring 202. The gear 102 at the upper end of the output shaft of the stepper motor 101 extends into the upper end of the fixed ring 202 and meshes with the teeth of the inner ring gear 203. The cylinders are connected and the stepper motor 101 drives the annular rotating support 2 to rotate intermittently, so that the support columns 3 on the annular rotating support 2 rotate one by one to the front end. The personnel fix the cylinders one by one to the support columns 3 that have rotated to the front end. By intermittently rotating the annular rotating support 2, the cylinders fixed on the support columns 3 rotate one by one to the annular rotating support 2 for inflation. When the cylinders at the rear end are being inflated, the personnel can remove the cylinders that have rotated to the front end and been inflated and put the cylinders to be inflated back in.

[0025] Working Principle: During operation, the operator first places the gas cylinder to be filled on the support column 3 at the front end of the annular rotating support 2, ensuring the bottom and middle parts of the cylinder are respectively engaged with the inner sides of the upper and lower semi-circular fixing rings 301. Then, the semi-circular rotating retaining ring 4 is rotated to close with the semi-circular fixing ring 301, and the first connecting block 302 and the second connecting block 402 are tightened with bolts 403 to quickly fix the cylinder. The stepper motor 101 is started, driving the gear 102 to mesh with the inner ring gear 203, causing the annular rotating support 2 to rotate intermittently by 60°, moving the next empty support column 3 to the filling position, at which point the second cylinder can be fixed. When the first cylinder rotates to the filling position at the rear end of the annular rotating support 2, the filling equipment is connected for filling. Simultaneously, the operator can unload the filled cylinder at the front position and install a new cylinder. Through the intermittent rotation of the annular rotating support 2, multi-position cyclical operation is achieved, with filling and unloading processes running concurrently, significantly improving filling efficiency.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high efficiency cylinder filling apparatus comprising a circular base (1) characterised in that: The upper end of the circular base (1) is rotatably connected to an annular rotating support seat (2). A fixing ring (202) is fixedly connected to the middle of the upper end face of the annular rotating support seat (2). Multiple support columns (3) are fixedly connected to the upper end face of the annular rotating support seat (2) and outside the fixing ring (202) in an annular array. A semi-circular fixing ring (301) is provided at the middle and upper end of the outer end face of each support column (3). A semi-circular rotating retaining ring (4) is rotatably connected to the outer side of each semi-circular fixing ring (301).

2. The high efficiency cylinder filling apparatus of claim 1 wherein: The upper end of the circular base (1) is connected to the lower end of the annular rotary support (2) by a slewing bearing (201).

3. The high efficiency cylinder filling apparatus of claim 1 wherein: A stepper motor (101) is fixedly installed at the upper middle part of the base (1). A gear (102) is fixedly connected to the upper end of the output shaft of the stepper motor (101). An inner ring gear (203) is fixedly connected to the upper end of the inner wall of the fixing ring (202).

4. The high-efficiency gas filling device for gas cylinders according to claim 3, characterized in that: The upper gear (102) of the output shaft of the stepper motor (101) extends into the upper part of the fixed ring (202) and meshes with the teeth of the inner ring gear (203).

5. The high-efficiency gas filling device for gas cylinders according to claim 1, characterized in that: The semicircular fixing ring (301) is fixedly connected to the support column (3), and one side of the semicircular fixing ring (301) is rotatably connected to one side of the semicircular rotating retaining ring (4) through a rotating shaft (401).

6. The high-efficiency gas filling device for gas cylinders according to claim 1, characterized in that: The semicircular fixing ring (301) is fixedly connected to a first connecting block (302) on the other side, and an internal threaded pipe (303) is fixedly connected to the middle of the first connecting block (302). The semicircular rotating retaining ring (4) is fixedly connected to a second connecting block (402) on the other side.

7. The high-efficiency gas filling device for gas cylinders according to claim 6, characterized in that: The first connecting block (302) and the second connecting block (402) are fixed by bolts (403) passing through the middle of the second connecting block (402) and then being inserted into the internal thread of the internal threaded tube (303).

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