Positioning device for nitrogen tank

Abstract

The utility model discloses a positioning device for a nitrogen tank, which relates to the technical field of nitrogen tanks and comprises a support frame, universal wheels are rotatably mounted at four corners of the bottom end of the support frame, a slider is slidably mounted in the support frame, a rotating shaft is rotatably mounted on one side of the slider, and a fixing plate is fixedly mounted at one end of the rotating shaft. A supporting plate is fixedly installed at the bottom end of the fixing plate, two clamping blocks distributed in a mirror image mode are installed on the fixing plate in a sliding mode, a two-way lead screw is rotatably installed in the fixing plate, a second motor is fixedly installed at one end of the fixing plate, and the output end of the second motor is fixedly connected with one end of the two-way lead screw. According to liquid nitrogen tanks with different diameter sizes, the second motor is used for driving the two-way lead screw to rotate, the two-way lead screw drives the two clamping blocks to move oppositely to clamp the liquid nitrogen tanks, accordingly, positioning and fixing of the liquid nitrogen tanks are achieved, the supporting frame is used for transferring the liquid nitrogen tanks, time and labor are saved, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen tank technology, specifically a positioning device for nitrogen tanks. Background Technology

[0002] Nitrogen is a colorless, odorless, and tasteless gas under normal conditions, and is generally non-toxic. It comprises 78.12% of the total atmospheric volume and is a major component of air. At room temperature, it is a gas; under standard atmospheric pressure, it becomes a colorless liquid when cooled to -195.8℃, and a snow-like solid when cooled to -209.86℃. Nitrogen is chemically very stable and rarely reacts with other substances at room temperature. However, under high temperature and high energy conditions, it can undergo chemical changes with certain substances to produce new substances useful to humans. Nitrogen cylinders, also known as nitrogen tanks, are storage devices used for transporting and using nitrogen. They are pressure-resistant and can generally store high-pressure liquid nitrogen.

[0003] When transporting nitrogen cylinders, it is necessary to move the full nitrogen cylinders onto the transport vehicle. Currently, manual handling is usually used. However, due to the large size and heavy weight of nitrogen cylinders, it is difficult to position and fix them, which is not only time-consuming and laborious but also inefficient. In order to solve the above problems, the inventor proposes a positioning device for nitrogen cylinders. Utility Model Content

[0004] To address the problem of difficulty in positioning and securing nitrogen cylinders during transport, which is not only time-consuming and labor-intensive but also inefficient, this utility model aims to provide a positioning device for nitrogen cylinders.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a positioning device for a nitrogen tank, comprising a support frame, universal wheels rotatably mounted at the four corners of the bottom end of the support frame, a slider slidably mounted inside the support frame, a rotating shaft rotatably mounted on one side of the slider, a fixing plate fixedly mounted at one end of the rotating shaft, a support plate fixedly mounted at the bottom end of the fixing plate, two clamping blocks slidably mounted on the fixing plate in a mirror distribution, a bidirectional lead screw rotatably mounted inside the fixing plate, and the bidirectional lead screw threaded into one end of the two clamping blocks, a second motor fixedly mounted at one end of the fixing plate, and the output end of the second motor fixedly connected to one end of the bidirectional lead screw.

[0006] Preferably, a threaded rod is rotatably installed inside the support frame, and the threaded rod is threaded into the slider. A first motor is fixedly installed at the top of the support frame, and the output end of the first motor is fixedly connected to the top of the threaded rod.

[0007] Preferably, rubber pads are fixedly installed on the inner sides of both clamping blocks.

[0008] Preferably, a fixed rod is fixedly installed on the rotating shaft, a limit rod is slidably installed inside the rotating shaft, a pull rod is slidably installed inside the fixed rod, and the bottom end of the pull rod is fixedly connected to the top end of the limit rod. A paddle is fixedly installed at the top end of the pull rod, a spring is sleeved at the bottom end of the pull rod, and the bottom end of the spring is fixedly connected to the top end of the limit rod. An open ring is fixedly installed on one side of the slider, and the rotating shaft is rotatably installed inside the open ring. Two limit holes are provided in a ring, and the bottom end of the limit rod can be inserted into the limit hole.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. In this utility model, a second motor drives a bidirectional lead screw to rotate according to liquid nitrogen tanks of different diameters. The bidirectional lead screw drives two clamping blocks to move towards each other to clamp the liquid nitrogen tank, thereby achieving the positioning and fixing of the liquid nitrogen tank. The support frame is then used to transport the liquid nitrogen tank, which is time-saving, labor-saving and highly efficient.

[0011] 2. In this utility model, the first motor can be used to drive the threaded rod to rotate according to the height of the transport vehicle. The threaded rod drives the slider to slide and rise in the support frame. The slider drives the liquid nitrogen tank to rise to the height of the carriage, which makes it easy to load the liquid nitrogen tank onto the transport vehicle.

[0012] 3. In this utility model, when the liquid nitrogen tank rises to the height of the carriage, it can be adjusted according to the placement of the liquid nitrogen tank (vertical or horizontal). If the liquid nitrogen tank in the carriage is placed horizontally, the fixed rod can be used to drive the rotating shaft and the liquid nitrogen tank to rotate 90 degrees, and the limiting rod can be used to limit it, which facilitates the loading and unloading of the liquid nitrogen tank and greatly improves the practicality of the device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing rod of this utility model;

[0017] Figure 4 This is a schematic diagram of the open ring structure of this utility model.

[0018] In the diagram: 1. Support frame; 2. Slider; 3. Threaded rod; 4. First motor; 5. Fixing plate; 6. Clamping block; 7. Rubber pad; 8. Two-way lead screw; 9. Second motor; 10. Caster wheel; 11. Support plate; 12. Fixing rod; 13. Rotating shaft; 14. Open ring; 15. Pull rod; 16. Paddle; 17. Limiting rod; 18. Spring; 19. Limiting hole. Detailed Implementation

[0019] 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.

[0020] Example: Figure 1-4 As shown, this utility model provides a positioning device for a nitrogen tank, including a support frame 1. Universal wheels 10 are rotatably mounted at the four corners of the bottom of the support frame 1. A slider 2 is slidably mounted inside the support frame 1. A rotating shaft 13 is rotatably mounted on one side of the slider 2. A fixing plate 5 is fixedly mounted at one end of the rotating shaft 13. A support plate 11 is fixedly mounted at the bottom of the fixing plate 5. Two mirror-distributed clamping blocks 6 are slidably mounted on the fixing plate 5. A bidirectional lead screw 8 is rotatably mounted inside the fixing plate 5, and the bidirectional lead screw 8 is threaded into one end of the two clamping blocks 6. A second motor 9 is fixedly mounted at one end of the fixing plate 5. The output end of the second motor 9 is fixedly connected to one end of the bidirectional lead screw 8. First, the support frame 1 is moved to the liquid nitrogen tank by the universal wheel 10, so that the support plate 11 is located at the bottom of the liquid nitrogen tank (the liquid nitrogen tank is in a vertical state). Then, the second motor 9 drives the bidirectional lead screw 8 to rotate. The bidirectional lead screw 8 drives the two clamping blocks 6 to move towards each other to clamp the liquid nitrogen tank, thereby realizing the positioning and fixing of the liquid nitrogen tank. Then, the support frame 1 is used to move the liquid nitrogen tank to the transport vehicle. According to the height of the transport vehicle, the slider 2 is used to lift the liquid nitrogen tank to the height of the vehicle compartment, which makes it easy to load the liquid nitrogen tank onto the transport vehicle.

[0021] A threaded rod 3 is rotatably installed inside the support frame 1, and the threaded rod 3 is threadedly inserted into the slider 2.

[0022] By adopting the above technical solution, the threaded rod 3 drives the slider 2 to slide and rise within the support frame 1, and the slider 2 drives the fixed plate 5 and the support plate 11 to rise and fall.

[0023] The first motor 4 is fixedly installed at the top of the support frame 1, and the output end of the first motor 4 is fixedly connected to the top of the threaded rod 3.

[0024] By adopting the above technical solution, the first motor 4 drives the threaded rod 3 to rotate.

[0025] Rubber pads 7 are fixedly installed on the inner sides of both clamping blocks 6.

[0026] By adopting the above technical solution, the rubber pad 7 can prevent the clamping block 6 from damaging the exterior of the liquid nitrogen tank.

[0027] A fixed rod 12 is fixedly installed on the rotating shaft 13. A limit rod 17 is slidably installed inside the rotating shaft 13. A pull rod 15 is slidably installed inside the fixed rod 12. The bottom end of the pull rod 15 is fixedly connected to the top end of the limit rod 17. A paddle 16 is fixedly installed at the top end of the pull rod 15. A spring 18 is sleeved on the bottom end of the pull rod 15. The bottom end of the spring 18 is fixedly connected to the top end of the limit rod 17.

[0028] By adopting the above technical solution, when the liquid nitrogen tank rises to the height of the carriage, depending on the placement of the liquid nitrogen tank (vertical or horizontal), if the liquid nitrogen tank in the carriage is placed horizontally, the fixed rod 12 can be used to drive the rotating shaft 13 and the liquid nitrogen tank to rotate 90 degrees, which facilitates the loading and unloading of the liquid nitrogen tank and greatly improves the practicality of the device. The lever 16 can also be moved to drive the limit rod 17 to extend and retract within the rotating shaft 13 through the pull rod 15, and the spring force of the spring 18 can be used to reset the limit rod 17.

[0029] An open ring 14 is fixedly installed on one side of the slider 2, and the rotating shaft 13 is rotatably installed inside the open ring 14. Two limit holes 19 are provided in the open ring 14 in a ring, and the bottom end of the limit rod 17 can be inserted into the limit hole 19.

[0030] By adopting the above technical solution, the fixed rod 12 drives the rotating shaft 13 to rotate within the open ring 14. The open ring 14 can also limit the fixed rod 12, so that the maximum rotation angle of the fixed rod 12 is ninety degrees. The limiting rod 17 can be inserted into the corresponding limiting hole 19 to limit the rotating shaft 13. The distance angle between the two limiting holes 19 is ninety degrees.

[0031] Working principle: When using this utility model, firstly, the support frame 1 is moved to the liquid nitrogen tank via the casters 10, so that the support plate 11 is located at the bottom of the liquid nitrogen tank (the liquid nitrogen tank is in a vertical state). Then, the second motor 9 drives the bidirectional lead screw 8 to rotate, and the bidirectional lead screw 8 drives the two clamping blocks 6 to move towards each other to clamp the liquid nitrogen tank, thereby achieving the positioning and fixing of the liquid nitrogen tank. Then, the support frame 1 is used to move the liquid nitrogen tank to the transport vehicle. Depending on the height of the transport vehicle, the first motor 4 drives the threaded rod 3 to rotate, and the threaded rod 3 drives the slider 2 to slide and rise inside the support frame 1. The slider 2 drives the liquid nitrogen tank to rise to the height of the vehicle compartment, making it easy to load the liquid nitrogen tank onto the transport vehicle.

[0032] When the liquid nitrogen tank rises to the height of the carriage, depending on the placement of the liquid nitrogen tank (vertical or horizontal), if the liquid nitrogen tank in the carriage is placed horizontally, firstly, move the lever 16 to drive the limit rod 17 to retract into the rotating shaft 13 via the pull rod 15, and squeeze the spring 18 to release the limit of the rotating shaft 13. Then, use the fixing rod 12 to drive the rotating shaft 13 and the liquid nitrogen tank to rotate 90 degrees, adjusting the vertical liquid nitrogen tank to a horizontal position, and release the lever 16. Use the rebound force of the spring 18 to insert the limit rod 17 into the corresponding limit hole 19 to limit the rotating shaft 13. This facilitates the loading and unloading of the liquid nitrogen tank and greatly improves the practicality of the device.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A positioning device for nitrogen gas cylinder comprising a support frame (1) characterized in that: The bottom end of the support frame (1) is rotatably installed with universal wheels (10), the support frame (1) is slidably installed with a sliding block (2), one side of the sliding block (2) is rotatably installed with a rotating shaft (13), one end of the rotating shaft (13) is fixedly installed with a fixed plate (5), the bottom end of the fixed plate (5) is fixedly installed with a supporting plate (11), the fixed plate (5) is slidably installed with two clamping blocks (6) which are mirror images, the fixed plate (5) is rotatably installed with a bidirectional screw rod (8), and the bidirectional screw rod (8) is threadedly inserted into one end of the two clamping blocks (6), one end of the fixed plate (5) is fixedly installed with a second motor (9), and the output end of the second motor (9) is fixedly connected with one end of the bidirectional screw rod (8).

2. The positioning device for a nitrogen tank according to claim 1, wherein The support frame (1) is rotatably installed with a threaded rod (3), and the threaded rod (3) is threadedly inserted into the sliding block (2).

3. The positioning device for a nitrogen tank according to claim 1, wherein The top end of the support frame (1) is fixedly installed with a first motor (4), and the output end of the first motor (4) is fixedly connected with the top end of the threaded rod (3).

4. The positioning device for a nitrogen tank according to claim 1, wherein The inner side of the two clamping blocks (6) is fixedly installed with rubber pads (7).

5. The positioning device for a nitrogen tank according to claim 1, wherein The rotating shaft (13) is fixedly installed with a fixed rod (12), and the rotating shaft (13) is slidably installed with a limiting rod (17).

6. The positioning device for a nitrogen tank according to claim 5, wherein The fixed rod (12) is slidably installed with a pull rod (15), and the bottom end of the pull rod (15) is fixedly connected with the top end of the limiting rod (17), and the top end of the pull rod (15) is fixedly installed with a push piece (16).

7. The positioning device for a nitrogen tank according to claim 6, wherein The bottom end of the pull rod (15) is sleeved with a spring (18), and the bottom end of the spring (18) is fixedly connected with the top end of the limiting rod (17).

8. The positioning device for a nitrogen tank according to claim 7, wherein One side of the sliding block (2) is fixedly installed with an open ring (14), and the rotating shaft (13) is rotatably installed in the open ring (14), and the open ring (14) is provided with two limiting holes (19) which are annularly distributed, and the bottom end of the limiting rod (17) can be inserted into the limiting hole (19).

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