Gas cylinder filling device suitable for low-temperature liquid oxygen

Abstract

The utility model discloses a gas cylinder filling device suitable for low-temperature liquid oxygen, which comprises an oxygen storage tank used for storing the low-temperature liquid oxygen, and a bottom plate fixedly connected to the bottom of the oxygen storage tank; the top end of the oxygen storage tank is fixedly connected with a motor, and the output end of the motor is fixedly connected with a rotating shaft. According to the device, a rotating plate is arranged, a worker steps on one end of the rotating plate to enable the rotating plate to rotate around a rotating rod, one side of the rotating plate rotating downwards makes contact with the ground, a gas cylinder is slowly pushed to the rotating plate, the worker places a pushing device on a supporting rod again, and the gas cylinder is pushed to the position below a gas conveying pipe through the pushing device; a worker presses down the rotating plate on one side of the pushing device, the gas cylinder slides towards the pushing device, the worker lifts up the pushing device after stably holding the gas cylinder, then the gas cylinder can be taken down from the device, and the problem that the worker needs to carry down the gas cylinder from a high place is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinder filling, in particular to a gas cylinder filler suitable for cryogenic liquid oxygen. Background Art

[0002] A gas cylinder is a mobile pressure vessel that can be repeatedly inflated under normal conditions, has a nominal working pressure of 0-30MPa (gauge pressure), and a nominal volume of 0.4-1000L, and is used to contain permanent gases, liquefied gases, or dissolved gases.

[0003] In the prior art, there is a gas filling device with Chinese patent number: CN219367417U, which includes a compression cylinder body, fixed brackets are connected to both sides of the bottom of the compression cylinder body, a support base is connected to the bottom of the fixed bracket, a plurality of evenly arranged equidistant protrusions are arranged on the outer wall of the fixed bracket, a hydraulic cylinder is installed at the center of the top of the support base, a telescopic rod is slidably connected in the hydraulic cylinder, an airtight piston plate is connected to the top of the telescopic rod, two gas flow pipes are arranged opposite to each other near the edge of the top of the compression cylinder body, an airtight valve is arranged in the middle of the gas flow pipe, a gas cylinder is coaxially connected to the other port of the gas flow pipe, a gas cylinder mounting seat is provided at the bottom of the gas cylinder, and the gas cylinder mounting seat is connected to the fixed bracket by a sliding connection. Through the utility model, the function of gas filling between several gas cylinders with different internal pressures can be realized.

[0004] However, in the prior art, although the above patent has the above technical advantages, the disadvantage is that the above device places the gas cylinder at a high place for inflation. When removing the gas cylinder, the staff needs to carry it down from a high place or use a sling to move the gas cylinder down. The gas cylinder is generally heavy, which may cause the staff to be too tired during the transportation and the gas cylinder at a high place is inconvenient to carry. Or when lifting the gas cylinder, the gas cylinder is prone to shaking and it is inconvenient to place it firmly on the ground. Utility Model Content

[0005] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a gas cylinder filler suitable for cryogenic liquid oxygen, comprising: an oxygen storage tank, the oxygen storage tank is used to store cryogenic liquid oxygen, and the bottom of the oxygen storage tank is fixedly connected to a bottom plate;

[0006] The top of the oxygen storage tank is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is threadedly connected to a pressure plate, the outer surface of the pressure plate is slidably connected to the inner wall of the oxygen storage tank, the bottom end of the oxygen storage tank is fixedly connected to an air supply pipe, the upper surface of the bottom plate is fixedly connected to a support column, the inner surface of the support column is fixedly connected to a rotating rod, the outer surface of the rotating rod is rotatably connected to a rotating plate, the inner surface of the support column is slidably connected to the support rod, a sliding groove is provided in the wall of the support rod, and the outer surface of the sliding groove is slidably connected to a pushing device, the rotating plate that rotates downward, one side of which contacts the ground, slowly pushes the gas cylinder onto the rotating plate, and the pushing device can be used to push the gas cylinder to the bottom of the air supply pipe for inflation.

[0007] Preferably, the inner wall of the gas pipe is rotatably connected to a blocking ball, the outer surface of the blocking ball is fixedly connected to a connecting rod, the outer surface of the connecting rod is rotatably connected to the inner surface of the gas pipe, the inner surface of the gas pipe is fixedly connected to a retaining ring, the outer surface of the retaining ring is rotatably connected to the outer surface of the blocking ball, a through hole is opened in the wall of the blocking ball, when the end of the connecting rod away from the blocking ball is placed horizontally, the through hole is horizontal, and liquid oxygen does not pass through, otherwise the through hole is open and liquid oxygen passes through.

[0008] Preferably, the inner surface of the gas pipe is threadedly connected to a connecting pipe, the outer surface of the connecting pipe is fixedly connected to a sealing sleeve, the inner wall of the sealing sleeve is slidably connected to the outer surface of the gas pipe, and the gap between the connecting pipe and the gas pipe is sealed by the sealing sleeve to prevent leakage of low-temperature oxygen.

[0009] Preferably, an adjustment hole is opened in the wall of the support column, the outer surface of the adjustment hole is fixedly connected to the outer surface of the support rod, the outer surface of the support rod is fixedly connected with a stopper, the outer surface of the stopper is rotatably connected to the outer surface of the support column, the bottom of the support column is fixedly connected to the upper surface of the base plate, the upper surface of the base plate is fixedly connected with a sponge board, and the picture panel can support the rotating plate while buffering the rotating plate.

[0010] Preferably, the pushing device includes a sliding rod, the outer surface of the sliding rod is slidably connected to a movable plate, the inner surface of the movable plate is threadedly connected to a screw, the outer surface of the screw is rotatably connected to a fixed block, the outer surface of the movable plate is fixedly connected to a rotating rod, the outer surface of the rotating rod is rotatably connected to a pressure block, the outer surface of the pressure block is fixedly connected to a buffer spring, the end of the buffer spring away from the pressure block is fixedly connected to the outer surface of the movable plate, the screw is rotated to move the plate closer to each other, and after the pressure block contacts the surface of the gas cylinder, the pressure block rotates around the rotating rod and compresses the buffer spring backwards, and the gas cylinder is clamped by the movable plate and the pressure block.

[0011] Preferably, the outer surface of the sliding rod is slidably connected to the inner surface of the support rod, the end of the support rod away from the sliding rod is slidably connected to a fixing rod, the outer surface of the fixing rod is slidably connected to a clamping plate, the outer surface of the clamping plate is fixedly connected to the outer surface of the rotating rod, the inner surface of the clamping plate is also threadedly connected to the outer surface of the screw, and the fixing rod and the sliding rod are both made of cotton material to prevent damage to the gas cylinder.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides a rotating plate. The staff steps on one end of the rotating plate to make the rotating plate rotate around the rotating rod. One side of the rotating plate that rotates downward contacts the ground, and the gas cylinder is slowly pushed onto the rotating plate. The gas cylinder is placed on the rotating plate and moved a short distance. The rotating plate is still in contact with the ground. The staff puts the pushing device back on the supporting rod and uses the pushing device to push the gas cylinder under the gas pipeline. When removing the gas cylinder, the staff presses down the rotating plate on one side of the pushing device, and the rotating plate tilts, and the gas cylinder slides toward the pushing device. After the staff stabilizes the gas cylinder, the staff lifts the pushing device upward, and then the gas cylinder can be removed from the device, which solves the problem that the staff needs to move the gas cylinder from a high place.

[0014] 2. The utility model sets a pushing device and rotates the screw rod to make the two movable plates on the sliding rod approach each other. After the pressure block contacts the surface of the gas cylinder, the pressure block rotates around the rotating rod and compresses the buffer spring backwards. The gas cylinder is clamped by the movable plate and the pressure block. Then the staff pushes the sliding rod to push the gas cylinder toward the fixed rod. The staff increases the force to push the pushing device, so that the gas cylinder slides toward the fixed rod due to inertia. When the gas cylinder hits the pressure block, the pressure block is squeezed backwards. Due to the supporting force of the buffer spring, the impact force of the gas cylinder is gradually reduced until the gas cylinder is blocked by the fixed rod, and the two sides of the gas cylinder are squeezed by the pressure block without rebounding. The fixed rod and the sliding rod are both made of cotton material to prevent the gas cylinder from being damaged, thereby achieving the purpose of preventing the gas cylinder from shaking and tipping over when the gas cylinder is moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model at A;

[0018] Figure 4 It is a schematic diagram of the structure of the utility model at B;

[0019] Figure 5 It is a structural schematic diagram of the propulsion device of the utility model.

[0020] In the figure: 1, bottom plate; 2, oxygen storage tank; 3, motor; 4, rotating shaft; 5, pressure plate; 6, air pipe; 7, support column; 8, rotating rod; 9, rotating plate; 10, support rod; 11, slide groove; 12, pushing device; 13, blocking ball; 14, connecting rod; 15, retaining ring; 16, connecting pipe; 17, sealing sleeve; 18, adjusting hole; 19, stopper; 20, sliding rod; 21, moving plate; 22, screw; 23, fixed block; 24, rotating rod; 25, pressure block; 26, buffer spring; 27, fixed rod; 28, clamping plate; 29, sponge plate. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0022] Example:

[0023] See also Figure 1 - Figure 5 The utility model provides a technical solution: a gas cylinder filler suitable for cryogenic liquid oxygen, comprising: an oxygen storage tank 2, the oxygen storage tank 2 is used to store cryogenic liquid oxygen, and the bottom of the oxygen storage tank 2 is fixedly connected with a bottom plate 1;

[0024] The top of the oxygen storage tank 2 is fixedly connected with a motor 3, the output end of the motor 3 is fixedly connected with a rotating shaft 4, the outer surface of the rotating shaft 4 is threadedly connected with a pressing plate 5, the outer surface of the pressing plate 5 is slidably connected to the inner wall of the oxygen storage tank 2, the bottom end of the oxygen storage tank 2 is fixedly connected with an air delivery pipe 6, the upper surface of the bottom plate 1 is fixedly connected with a supporting column 7, the inner surface of the supporting column 7 is fixedly connected with a rotating rod 8, the outer surface of the rotating rod 8 is rotatably connected with a rotating plate 9, the inner surface of the supporting column 7 is slidably connected with a supporting rod 10, a sliding groove 11 is opened in the wall of the supporting rod 10, the outer surface of the sliding groove 11 is slidably connected with a pushing device 12, the rotating plate 9 rotates downward, one of which The side of the gas cylinder is in contact with the ground, and the gas cylinder is slowly pushed onto the rotating plate 9. The pushing device 12 can be used to push the gas cylinder to the bottom of the gas pipe 6 for inflation. The inner wall of the gas pipe 6 is rotatably connected with a blocking ball 13, and the outer surface of the blocking ball 13 is fixedly connected with a connecting rod 14. The outer surface of the connecting rod 14 is rotatably connected to the inner surface of the gas pipe 6, and the inner surface of the gas pipe 6 is fixedly connected with a retaining ring 15. The outer surface of the retaining ring 15 is rotatably connected to the outer surface of the blocking ball 13. A through hole is opened in the wall of the blocking ball 13. When the connecting rod 14 is placed horizontally at one end away from the blocking ball 13, the through hole is horizontal, and liquid oxygen does not pass through. Otherwise, the through hole is open and liquid oxygen passes through.

[0025] The inner surface of the gas pipe 6 is threadedly connected with a connecting pipe 16, and the outer surface of the connecting pipe 16 is fixedly connected with a sealing sleeve 17, the inner wall of the sealing sleeve 17 is slidably connected to the outer surface of the gas pipe 6, and the gap between the connecting pipe 16 and the gas pipe 6 is sealed by the sealing sleeve 17 to prevent leakage of low-temperature oxygen. An adjustment hole 18 is opened in the wall of the support column 7, and the outer surface of the adjustment hole 18 is fixedly connected to the outer surface of the support rod 10, and the outer surface of the support rod 10 is fixedly connected with a stopper 19, and the outer surface of the stopper 19 is rotatably connected to the outer surface of the support column 7. The bottom of the support column 7 is fixedly connected to the upper surface of the bottom plate 1, and the upper surface of the bottom plate 1 is fixedly connected with Sponge plate 29, sponge plate 29 can support the rotating plate 9 while buffering the rotating plate 9. The staff can install the connecting pipe 16 on the gas pipe 6 in advance according to the height of the gas cylinder to be filled. The gap between the connecting pipe 16 and the gas pipe 6 is sealed by the sealing sleeve 17 to prevent leakage of low-temperature oxygen. When the bottom end of the connecting pipe 16 is aligned with the gas filling port of the gas cylinder, the motor 3 at the top of the oxygen storage tank 2 on the bottom plate 1 is turned on to rotate the rotating shaft 4, and the pressing plate 5 threadedly connected to the rotating shaft 4 moves downward, and the side of the pressing plate 5 fits with the inner wall of the oxygen storage tank 2, so that the liquid oxygen under the pressing plate 5 is pressed down by the pressing plate 5, and the liquid oxygen enters the gas cylinder from the gas pipe 6 and the connecting pipe 16.

[0026] The pushing device 12 includes a slide bar 20, the outer surface of the slide bar 20 is slidably connected to a moving plate 21, the inner surface of the moving plate 21 is threadedly connected to a screw 22, the outer surface of the screw 22 is rotatably connected to a fixed block 23, the outer surface of the moving plate 21 is fixedly connected to a rotating rod 24, the outer surface of the rotating rod 24 is rotatably connected to a pressing block 25, the outer surface of the pressing block 25 is fixedly connected to a buffer spring 26, and the end of the buffer spring 26 away from the pressing block 25 is fixedly connected to the outer surface of the moving plate 21, the screw 22 is rotated to move the plates 21 closer to each other, and after the pressing block 25 contacts the surface of the gas cylinder, the pressing block 25 rotates around the rotating rod 24 and compresses the buffer spring 26 backwards, and the gas cylinder is clamped by the moving plate 21 and the pressing block 25, and the outer surface of the slide bar 20 is connected to the support rod The inner surface of the support rod 10 is slidably connected, and the end of the support rod 10 away from the sliding rod 20 is slidably connected with a fixing rod 27, and the outer surface of the fixing rod 27 is slidably connected with a clamping plate 28. The outer surface of the clamping plate 28 is fixedly connected to the outer surface of the rotating rod 24, and the inner surface of the clamping plate 28 is also threadedly connected to the outer surface of the screw 22. The staff increases the force to push the pushing device 12, so that the gas cylinder slides toward the fixing rod 27 due to inertia, and the pressing block 25 is squeezed backward when the gas cylinder hits the pressing block 25. Due to the supporting force of the buffer spring 26, the impact force of the gas cylinder is gradually reduced until the gas cylinder is blocked by the fixing rod 27, and the two sides of the gas cylinder are squeezed by the pressing block 25 without rebounding. The fixing rod 27 and the sliding rod 20 are both made of cotton material to prevent the gas cylinder from being damaged.

[0027] Working principle:

[0028] When in use, the staff lifts the pushing device 12 upward so that the gas cylinder can pass between the two support rods 10, and the staff steps on one end of the rotating plate 9 to make the rotating plate 9 rotate around the rotating rod 8. One side of the rotating plate 9 that rotates downward contacts the ground, and the staff can slowly push the gas cylinder onto the rotating plate 9, place the gas cylinder on the rotating plate 9 and move it a distance away from the rotating rod 8. Due to the gravity of the gas cylinder itself, the rotating plate 9 is still in contact with the ground. According to the height of the gas cylinder, the fixing rod 27 is lifted and the supporting rod 10 is rotated. The supporting rod 10 can be slid up and down in the supporting column 7. After selecting a suitable adjusting hole 18, the supporting rod 10 is rotated to place it in the adjusting hole 18, and the blocks 19 on both sides of the supporting column 7 can prevent the supporting rod 10 from moving forward and backward. The staff puts the pushing device 12 back on the supporting rod 10, and rotates the screw rod 22 to make the two movable plates 21 on the sliding rod 20 close to each other. The middle of the screw rod 22 is stuck in the fixing block 23 to prevent the screw 22 from deviating. After contacting the surface of the gas cylinder, the screw rod 22 is continuously rotated, and the pressing block 25 rotates around the rotating rod 24 and compresses the buffer spring 26 backwards. The gas cylinder is clamped by the movable plate 21 and the pressing block 25, and the screw rod 22 on one side of the fixed rod 27 is rotated at the same time, so that the clamping plate 28 is level with the movable plate 21. Then the staff pushes the pushing device 12 along the slide groove 11, and uses the slide rod 20 to push the gas cylinder toward the fixed rod 27. When the gas cylinder moves over the rotating rod 8, the gravity of the gas cylinder causes the rotating plate 9 to rotate around the rotating rod 8. , the rotating plate 9 rotates to the top of the sponge plate 29 and presses down the sponge plate 29. The staff increases the force to push the pushing device 12, so that the gas cylinder slides toward the fixed rod 27 due to inertia. When the gas cylinder hits the pressure block 25, it presses the pressure block 25 backward. Due to the supporting force of the buffer spring 26, the impact force of the gas cylinder is gradually reduced until the gas cylinder is blocked by the fixed rod 27, and the two sides of the gas cylinder are squeezed by the pressure block 25 without rebounding. The fixed rod 27 and the sliding rod 20 are both made of cotton material to prevent the gas cylinder from being damaged.

[0029] The staff can install the connecting pipe 16 on the gas delivery pipe 6 in advance according to the height of the gas cylinder to be filled. The gap between the connecting pipe 16 and the gas delivery pipe 6 is sealed by the sealing sleeve 17 to prevent leakage of low-temperature oxygen. When the bottom end of the connecting pipe 16 is aligned with the gas filling port of the gas cylinder, the motor 3 at the top of the oxygen storage tank 2 on the bottom plate 1 is turned on to rotate the shaft 4, and the pressing plate 5 threadedly connected to the shaft 4 moves downward, and the side of the pressing plate 5 fits with the inner wall of the oxygen storage tank 2, so that the liquid oxygen under the pressing plate 5 is pressed down by the pressing plate 5, and the connecting rod 14 is rotated to rotate the blocking ball 13 between the retaining ring 15. Since a through hole is opened in the wall of the blocking ball 13, when the end of the connecting rod 14 away from the blocking ball 13 is placed horizontally, the through hole is horizontal, and the liquid oxygen No, on the contrary, the through hole is open, and liquid oxygen passes through and enters the gas cylinder from the gas delivery pipe 6 and the connecting pipe 16; after the filling is completed, the connecting rod 14 is rotated to place its outer end horizontally, and the screw 22 on one side of the fixed rod 27 is rotated to make the clamping plate 28 slightly move away, and the staff presses down the rotating plate 9 on one side of the pushing device 12, so that the rotating plate 9 is tilted, and the gas cylinder slides between the moving plates 21. When the surface of the gas cylinder contacts the pressing block 25, the pressing block 25 and the buffer spring 26 are squeezed and continuously supported by the buffer spring 26, thereby reducing the impact force of the gas cylinder until the gas cylinder hits the sliding rod 20. After the staff stabilizes the gas cylinder, the pushing device 12 is lifted upward, and then the gas cylinder can be removed from the device.

[0030] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A gas cylinder filler suitable for cryogenic liquid oxygen, comprising: An oxygen storage tank (2), the oxygen storage tank (2) being used to store cryogenic liquid oxygen, the bottom of the oxygen storage tank (2) being fixedly connected to a bottom plate (1); Features: The top of the oxygen storage tank (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a rotating shaft (4), the outer surface of the rotating shaft (4) is threadedly connected to a pressure plate (5), the outer surface of the pressure plate (5) is slidably connected to the inner wall of the oxygen storage tank (2), the bottom end of the oxygen storage tank (2) is fixedly connected to an air supply pipe (6), the upper surface of the bottom plate (1) is fixedly connected to a support column (7), the inner surface of the support column (7) is fixedly connected to a rotating rod (8), the outer surface of the rotating rod (8) is rotatably connected to a rotating plate (9), the inner surface of the support column (7) is slidably connected to a support rod (10), a sliding groove (11) is provided in the wall of the support rod (10), and the outer surface of the sliding groove (11) is slidably connected to a pushing device (12).

2. A gas cylinder filler suitable for cryogenic liquid oxygen according to claim 1, characterized in that: The inner wall of the gas pipe (6) is rotatably connected to a blocking ball (13), the outer surface of the blocking ball (13) is fixedly connected to a connecting rod (14), the outer surface of the connecting rod (14) is rotatably connected to the inner surface of the gas pipe (6), the inner surface of the gas pipe (6) is fixedly connected to a retaining ring (15), and the outer surface of the retaining ring (15) is rotatably connected to the outer surface of the blocking ball (13).

3. A gas cylinder filler suitable for cryogenic liquid oxygen according to claim 1, characterized in that: The inner surface of the gas delivery pipe (6) is threadedly connected to a connecting pipe (16), the outer surface of the connecting pipe (16) is fixedly connected to a sealing sleeve (17), and the inner wall of the sealing sleeve (17) is slidably connected to the outer surface of the gas delivery pipe (6).

4. A gas cylinder filler suitable for cryogenic liquid oxygen according to claim 1, characterized in that: An adjustment hole (18) is provided in the wall of the support column (7); the outer surface of the adjustment hole (18) is fixedly connected to the outer surface of the support rod (10); the outer surface of the support rod (10) is fixedly connected to a stopper (19); the outer surface of the stopper (19) is rotatably connected to the outer surface of the support column (7); the bottom of the support column (7) is fixedly connected to the upper surface of the base plate (1); and the upper surface of the base plate (1) is fixedly connected to a sponge board (29).

5. A gas cylinder filler suitable for cryogenic liquid oxygen according to claim 1, characterized in that: The pushing device (12) comprises a sliding rod (20), the outer surface of the sliding rod (20) is slidably connected to a moving plate (21), the inner surface of the moving plate (21) is threadedly connected to a screw rod (22), the outer surface of the screw rod (22) is rotatably connected to a fixed block (23), the outer surface of the moving plate (21) is fixedly connected to a rotating rod (24), the outer surface of the rotating rod (24) is rotatably connected to a pressure block (25), the outer surface of the pressure block (25) is fixedly connected to a buffer spring (26), and one end of the buffer spring (26) away from the pressure block (25) is fixedly connected to the outer surface of the moving plate (21).

6. A gas cylinder filler suitable for cryogenic liquid oxygen according to claim 5, characterized in that: The outer surface of the sliding rod (20) is slidably connected to the inner surface of the supporting rod (10); one end of the supporting rod (10) away from the sliding rod (20) is slidably connected to a fixing rod (27); the outer surface of the fixing rod (27) is slidably connected to a clamping plate (28); the outer surface of the clamping plate (28) is fixedly connected to the outer surface of the rotating rod (24); and the inner surface of the clamping plate (28) is also threadedly connected to the outer surface of the screw rod (22).

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