Gas cylinder vacuumizing device

Abstract

The utility model relates to the technical field of gas cylinder maintenance, and provides a gas cylinder vacuumizing device which comprises a frame body, the frame body is composed of a left stand column, a right stand column and a cross beam arranged at the upper ends of the left stand column and the right stand column, and a gas pumping mechanism and a lifting mechanism driving the gas pumping mechanism to move in the height direction are arranged at the bottom of the cross beam. A gas cylinder conveyor is arranged at the lower end of the left stand column and the lower end of the right stand column, a gas cylinder feeding mechanism is arranged at the feeding end of the gas cylinder conveyor, and a gas cylinder returning mechanism is arranged at the discharging end of the gas cylinder conveyor. The gas cylinder conveying machine is matched with the gas cylinder feeding mechanism and the gas cylinder returning mechanism, automatic feeding, conveying and discharging of gas cylinders are achieved, manual intervention is not needed, and production efficiency is remarkably improved. The air exhaust mechanism moves in the height direction through the lifting mechanism, the air cylinders can be accurately in butt joint, and the continuity and stability of the vacuumizing process are ensured.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder maintenance technology, and in particular to a gas cylinder vacuuming device. Background Technology

[0002] Vacuuming technology for gas cylinders is a process of removing gas from inside a gas cylinder to achieve a vacuum or near-vacuum state. This technology is widely used in scientific experiments, medical equipment, industrial production, and the storage of high-purity gases. The main purpose of vacuuming is to remove residual gases (such as air, moisture, or other impurities) from the gas cylinder to ensure the purity of the internal environment and meet the stringent requirements of specific applications regarding gas purity, pressure, or vacuum level. Typically, the vacuuming process is achieved using a vacuum pump, which creates a low-pressure area inside the cylinder using mechanical or physical methods, thereby extracting the gas.

[0003] Currently, vacuuming gas cylinders mainly relies on manual operation. Operators need to manually connect the gas cylinder to the vacuum pump, and then manually disassemble the gas cylinder after completion. The whole process is not continuous and easily leads to wasted time. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a device capable of automated vacuuming, thereby improving processing efficiency and reducing manual labor costs.

[0005] The technical solution is as follows: A gas cylinder vacuuming device includes a frame, which consists of left and right columns and a crossbeam set at the upper end of the left and right columns. The bottom of the crossbeam is provided with a vacuuming mechanism and a lifting mechanism for driving the vacuuming mechanism to move in the height direction. The lower end of the left and right columns is provided with a gas cylinder conveyor. The inlet end of the gas cylinder conveyor is provided with a gas cylinder feeding mechanism, and the outlet end of the gas cylinder conveyor is provided with a gas cylinder unloading mechanism.

[0006] Preferably, the air extraction mechanism includes an air compressor, an adapter, a hose, and an air extraction connector. The adapter is located on one side of the left and right columns. One end of the adapter is connected to the air compressor, and the other end is connected to the air extraction connector. The connecting pipe between the adapter and the air extraction connector is a hose, and the air extraction connector is located at the movable end of the lifting mechanism.

[0007] Preferably, the lifting mechanism includes a lead screw, a lead screw nut, a slider, and a drive motor I. A vertical slot is opened on the left and right columns of the frame, and a vertically arranged lead screw is installed in each of the vertical slots. A lead screw nut is installed on each lead screw. The two ends of the slider are respectively connected to one of the lead screw nuts. The drive motor I is located at the upper end of the crossbeam and is connected to the two lead screws respectively.

[0008] Preferably, the gas cylinder feeding mechanism includes a cylindrical outer cover, inside which a turntable is coaxially arranged. A drive motor II for driving the turntable to rotate is provided at the bottom of the cylindrical outer cover. Two side openings are opened on the side wall of the cylindrical outer cover. One side opening is connected to a feeding conveyor, and the other side opening is connected to the feeding end of the gas cylinder conveyor. A semi-circular notch is provided on the outer side of the turntable. The diameter of the semi-circular notch is slightly larger than the outer diameter of the gas cylinder. The gas cylinder is placed on the feeding conveyor and transferred to the gas cylinder conveyor by the turntable.

[0009] Preferably, the bottom of the barrel-shaped outer cover is provided with a sliding guide rail to facilitate the movement of the gas cylinder. The sliding guide rail has an arc-shaped structure, and the two ends of the sliding guide rail correspond to the two side openings on the side wall of the barrel-shaped outer cover.

[0010] Preferably, the turntable has multiple semi-circular notches, and the semi-circular notches are evenly distributed along the outer circumference of the turntable; the number of the air extraction docking caps is consistent with the number of semi-circular notches.

[0011] Preferably, the gas cylinder unloading mechanism includes an unloading conveyor and a turning roller conveyor belt disposed between the unloading conveyor and the gas cylinder conveyor.

[0012] This utility model has the following advantages:

[0013] 1. This utility model, through the cooperation of a gas cylinder conveyor, a gas cylinder feeding mechanism, and a gas cylinder unloading mechanism, achieves automatic loading, conveying, and unloading of gas cylinders without manual intervention, significantly improving production efficiency. The vacuuming mechanism, through its lifting mechanism, moves vertically, enabling precise docking with the gas cylinders and ensuring the continuity and stability of the vacuuming process.

[0014] 2. The vacuum coupling cap and the adapter of this utility model are connected by a flexible hose, which allows the vacuum coupling cap to move flexibly to adapt to gas cylinders of different heights and positions, ensuring accurate docking.

[0015] 3. The turntable of this utility model is driven to rotate by drive motor II, which transfers the gas cylinder from the feeding conveyor to the gas cylinder conveyor, realizing continuous feeding and improving production efficiency. A sliding guide rail is provided at the bottom inside the barrel-shaped outer cover, which can guide the gas cylinder to move smoothly, reduce frictional resistance, and avoid the gas cylinder getting stuck. The two ends of the sliding guide rail correspond to the side openings to ensure that the gas cylinder can accurately enter and leave the turntable.

[0016] In addition, the turntable has multiple semi-circular notches, which can accommodate multiple gas cylinders simultaneously, improving the feeding speed. The number of vacuum docking caps matches the number of semi-circular notches, ensuring that each gas cylinder can be evacuated in a timely manner, avoiding waiting time. The multiple semi-circular notches are evenly distributed around the circumference of the turntable, allowing for precise control of the spacing between each gas cylinder.

[0017] 4. This utility model uses a turning roller conveyor belt to smoothly transfer gas cylinders from the gas cylinder conveyor to the unloading conveyor, achieving continuous feeding and improving production efficiency. The unloading conveyor can be adjusted in position and angle according to actual needs to adapt to different production layouts. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the air extraction mechanism and lifting mechanism of this utility model.

[0020] Figure 3 This is a partial schematic diagram of the gas cylinder feeding mechanism and gas cylinder conveyor of this utility model.

[0021] Figure 4 This is a schematic diagram showing the installation position of the sliding guide rail of this utility model.

[0022] Figure 5 This is a schematic diagram of the gas cylinder unloading mechanism that is hidden behind the side baffle of this utility model.

[0023] Reference numerals: 1_Frame, 11_Left and right columns, 12_Horizontal beam, 13_Vertical groove, 2_Evacuation mechanism, 21_Adapter, 22_Hose, 23_Evacuation docking cap, 3_Lifting mechanism, 31_Lead screw, 32_Lead screw nut, 33_Slider, 34_Drive motor I, 4_Cylinder conveyor, 5_Cylinder feeding mechanism, 51_Barrel-shaped cover, 52_Side opening one, 53_Side opening two, 54_Turntable, 55_Semi-circular notch, 56_Feeding conveyor, 6_Cylinder unloading mechanism, 61_Unloading conveyor, 62_Curving roller conveyor belt, 7_Sliding guide rail, 8_Side baffle. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-5 The diagram shows the overall and partial structure of the gas cylinder vacuuming device, which includes a frame 1, a vacuuming mechanism 2, a lifting mechanism 3, and a gas cylinder conveyor 4. (Refer to...) Figure 1The frame 1 consists of left and right uprights 11 and a top crossbeam 12. A vacuuming mechanism 2 and a lifting mechanism 3 are located at the bottom of the crossbeam 12. A gas cylinder conveyor 4, used for transporting gas cylinders, is correspondingly located at the lower ends of the left and right uprights 11, directly below the crossbeam 12. When a gas cylinder is transported by the gas cylinder conveyor 4 to the bottom of the vacuuming mechanism 2, operation pauses, and the cylinder is moved to the bottom of the vacuuming mechanism 2. Then, the lifting mechanism 3 drives the vacuuming mechanism 2 downwards to cooperate with the gas cylinder to perform a vacuuming operation. After completion, the lifting mechanism 3 drives the vacuuming mechanism 2 upwards, and the gas cylinder conveyor 4 restarts to transport the gas cylinder out of the device. Furthermore, in a preferred embodiment, a side baffle 8 is provided between the left and right uprights 11, which serves a protective function to prevent the gas cylinder from tipping over during transport.

[0026] Specifically, the air extraction mechanism 2 includes an air compressor (not shown in the figure), an adapter 21, a hose 22, and an air extraction connector 23. The adapter 21 is located on one side of the left and right columns 11. One end of the adapter 21 is connected to the air compressor, and the other end is connected to the air extraction connector 23. More specifically, the connecting pipe between the adapter 21 and the air extraction connector 23 is a hose 22, and the air extraction connector 23 is located at the movable end of the lifting mechanism 3. The lifting mechanism 3 includes a lead screw 31, a lead screw nut 32, a slider 33, and a drive motor I 34. A vertical slot 13 is provided on each of the left and right uprights 11 of the frame 1. A vertically arranged lead screw 31 is installed in each slot 13, and a lead screw nut 32 is installed on each lead screw 31. The two ends of the slider 33 are connected to one of the lead screw 31 nuts respectively, and the two ends of the slider 33 are in sliding engagement with the vertical slot 13. The drive motor I 34 is located at the upper end of the crossbeam 12 and is connected to both lead screws 31 via pulleys. It is important to note that when the two lead screws 31 rotate, the movement of the lead screw nut 32 must be consistent.

[0027] The vacuum coupling cap 23 is specifically set on the slider 33. The drive motor I 34 drives the two lead screws 31 to rotate, thereby driving the slider 33 to move synchronously through the lead screw nut 32. The slider 33 then drives the vacuum coupling cap 23 to move up and down, thus realizing automatic vacuuming.

[0028] In addition, the device also includes a gas cylinder feeding mechanism 5 and a gas cylinder unloading mechanism 6. The gas cylinder feeding mechanism 5 is connected to the feeding end of the conveyor 4, and the gas cylinder unloading mechanism 6 is connected to the discharging end of the gas cylinder conveyor 4.

[0029] like Figure 3As shown, the gas cylinder feeding mechanism 5 includes a cylindrical outer cover 51. A turntable 54 is coaxially arranged inside the cylindrical outer cover 51. The height of the cylindrical outer cover 51 and the turntable 54 is not less than half the height of the gas cylinder. Preferably, a cylindrical outer cover 51 and a turntable 54 with a height approximately equal to that of the gas cylinder are used. Furthermore, a drive motor II for driving the turntable 54 to rotate is provided at the bottom inside the cylindrical outer cover 51. Two side openings are opened on the side wall of the cylindrical outer cover 51, namely side opening one 52 and side opening two 53. Side opening one 52 is connected to a feeding conveyor 56, and side opening two 53 is connected to the feeding end of the gas cylinder conveyor 4. A semi-circular notch 55 is provided on the outer side of the turntable 54. The diameter of the semi-circular notch 55 is slightly larger than the outer diameter of the gas cylinder. The gas cylinder is placed on the feeding conveyor 56 and transferred to the gas cylinder conveyor 4 via the turntable 54.

[0030] like Figure 4 As shown, in a preferred embodiment, a sliding guide rail 7 is provided at the bottom of the inner side of the barrel-shaped outer cover 51 to facilitate the movement of the gas cylinder. The sliding guide rail 7 has an arc-shaped structure. The sliding guide rail 7 can reduce the friction between the gas cylinder and the barrel-shaped outer cover 51, making the transmission smoother. Moreover, the two ends of the sliding guide rail 7 correspond to the two side openings on the side wall of the barrel-shaped outer cover 51, so that the gas cylinder can move more smoothly when it is fed by the upper and lower gas cylinder feeding mechanism 5.

[0031] In another preferred embodiment, the turntable 54 has multiple semi-circular notches 55, which are evenly distributed around the outer circumference of the turntable 54. By providing multiple semi-circular notches 55, the turntable 54 can accommodate more gas cylinders. The number of vacuum docking caps 23 is consistent with the number of semi-circular notches 55, so that vacuuming operations can be performed on multiple gas cylinders. The evenly distributed semi-circular notches 55, in conjunction with the gas cylinder conveyor 4, can transfer gas cylinders, ensuring that the gas cylinders transferred to the gas cylinder conveyor 4 maintain an equal spacing. It is particularly important to note that this spacing is consistent with the spacing between the vacuum docking caps 23.

[0032] like Figure 5 As shown, the gas cylinder unloading mechanism 6 specifically includes an unloading conveyor 61 and a turning roller conveyor 62 disposed between the unloading conveyor 61 and the gas cylinder conveyor 4. The function of the turning roller conveyor 62 is similar to that of the sliding guide rail 7, and will not be described in detail here.

[0033] In this embodiment, in addition to the side baffles 8 provided between the left and right columns 11, side baffles 8 are also provided on the top of the feeding conveyor 56, the unloading conveyor 61 and the turning roller conveyor 62. The side baffles 8 in each part have the same function, which is to prevent the gas cylinder from tipping over and play a protective role.

[0034] It should also be noted that all the motors, transmission machines, electrical components, and solenoid valves controlling the air compressor switch and the air extraction cap 23 used in this device are connected to the PLC control center, and the coordinated operation of each component is controlled through program programming.

[0035] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A gas cylinder vacuum pumping device, characterized in that, The frame (1) consists of left and right columns (11) and a crossbeam (12) set at the upper end of the left and right columns (11). The bottom of the crossbeam (12) is provided with an air extraction mechanism (2) and a lifting mechanism (3) that drives the air extraction mechanism (2) to move in the height direction. The lower end of the left and right columns (11) is provided with a gas cylinder conveyor (4). The gas cylinder conveyor (4) has a gas cylinder feeding mechanism (5) at the feeding end and a gas cylinder unloading mechanism (6) at the discharging end.

2. The gas cylinder vacuuming device according to claim 1, characterized in that, The air extraction mechanism (2) includes an air compressor, an adapter (21), a hose (22), and an air extraction connector (23). The adapter (21) is located on one side of the left and right columns (11). One end of the adapter (21) is connected to the air compressor, and the other end is connected to the air extraction connector (23). The connecting pipe between the adapter (21) and the air extraction connector (23) is a hose (22). The air extraction connector (23) is located at the movable end of the lifting mechanism (3).

3. The gas cylinder vacuuming device according to claim 1, characterized in that, The lifting mechanism (3) includes a lead screw (31), a lead screw nut (32), a slider (33), and a drive motor I (34). A vertical slot (13) is opened on the left and right columns (11) of the frame (1). A vertically arranged lead screw (31) is set in the vertical slot (13). A lead screw nut (32) is set on the lead screw (31). The two ends of the slider (33) are respectively connected to the nut of one of the lead screws (31). The drive motor I (34) is set on the upper end of the crossbeam (12). The drive motor I (34) is connected to the two lead screws (31) respectively.

4. The gas cylinder vacuuming device according to claim 2, characterized in that, The gas cylinder feeding mechanism (5) includes a barrel-shaped outer cover (51), a turntable (54) is coaxially arranged inside the barrel-shaped outer cover (51), and a drive motor II for driving the turntable (54) to rotate is provided at the bottom of the barrel-shaped outer cover (51). Two side openings are opened on the side wall of the barrel-shaped outer cover (51). The first side opening (52) is connected to the feeding conveyor (56), and the second side opening (53) is connected to the feeding end of the gas cylinder conveyor (4). The turntable (54) has a semi-circular notch (55) on its outer side. The diameter of the semi-circular notch (55) is slightly larger than the outer diameter of the gas cylinder. The gas cylinder is placed on the feeding conveyor (56) and transferred to the gas cylinder conveyor (4) via the turntable (54).

5. The gas cylinder vacuuming device according to claim 4, characterized in that, The bottom of the barrel-shaped outer cover (51) is provided with a sliding guide rail (7) to facilitate the movement of the gas cylinder. The sliding guide rail (7) has an arc-shaped structure, and the two ends of the sliding guide rail (7) correspond to the two side openings on the side wall of the barrel-shaped outer cover (51).

6. The gas cylinder vacuuming device according to claim 4, characterized in that, The turntable (54) has multiple semi-circular notches (55), and the semi-circular notches (55) are evenly distributed along the outer circumference of the turntable (54); The number of the vacuum docking caps (23) is consistent with the number of the semi-circular notches (55).

7. The gas cylinder vacuuming device according to claim 1, characterized in that, The gas cylinder unloading mechanism (6) includes an unloading conveyor (61) and a turning roller conveyor belt (62) disposed between the unloading conveyor (61) and the gas cylinder conveyor (4).

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