Liquid helium storage device

Abstract

The utility model discloses a liquid helium storage device which comprises a cabinet body, a plurality of placing plates are fixedly arranged on the inner wall of the cabinet body, placing boxes are arranged at the upper ends of the placing plates, T-shaped grooves are formed in the front end faces of the placing boxes, and T-shaped blocks are arranged in the T-shaped grooves in a sliding mode. Guide holes are formed in the positions, located on the two sides, of the upper end face of the T-shaped block, guide rods are correspondingly arranged in the T-shaped groove, the guide holes and the guide rods are installed in a sliding mode, reset springs are fixedly arranged at the positions, located on the upper end face of the T-shaped block, of the outer ends of the guide holes, and the other ends of the reset springs are fixedly connected with the inner wall of the T-shaped groove; an inserting rod is fixedly arranged on the lower end face of the T-shaped block, and an inserting hole is correspondingly formed in the upper end face of the placing plate, so that a user can lift the handle upwards to enable the T-shaped block to slide in the T-shaped groove, the inserting rod is separated from the inserting hole, at the moment, the placing box can be taken out, and the liquid nitrogen cryopreservation tube in the placing box can be conveniently taken.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid nitrogen containers, and more specifically, to a liquid helium storage device. Background Art

[0002] Liquid nitrogen is a common cryogenic liquid, the main component of which is nitrogen gas. The boiling point of liquid nitrogen is -195.79 degrees Celsius (-320.34 degrees Fahrenheit). It is a colorless and odorless liquid under normal pressure. The temperature of liquid nitrogen is very low and can reach extremely low temperatures. Therefore, it is widely used in low-temperature experiments, cryopreservation and frozen food. Liquid nitrogen is usually stored in cryogenic tubes, and then the cryogenic tubes are placed in a storage device in an orderly manner for easy access. However, most traditional storage devices do not have a structure to fix the drawer, which makes the drawer easy to slide out due to collision, causing unnecessary losses; and the cryogenic tubes placed directly inside the drawer are prone to tipping over and are messy, making it more troublesome to take them out next time. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the utility model provides a liquid helium storage device to solve the technical problem that most of the traditional storage devices mentioned in the background technology do not have a structure for fixing the drawer, which causes the drawer to slide out easily due to collision, causing unnecessary losses.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid helium storage device comprises a cabinet, a placement plate is fixedly provided on the inner wall of the cabinet, a plurality of placement plates are provided and a placement box is provided at the upper end thereof, a front end surface of the placement box is provided with a T-slot, a T-block is slidably provided inside the T-slot, a guide hole is provided on the upper end surface and on both sides of the T-block, a guide rod is correspondingly provided inside the T-slot, the guide hole is slidably installed with the guide rod, a return spring is fixedly provided at the outer end of the guide hole and located on the upper end surface of the T-block, the other end of the return spring is fixedly connected to the inner wall of the T-slot, a plug rod is fixedly provided on the lower end surface of the T-block, a plug hole is correspondingly provided on the upper end surface of the placement plate, the lower end of the plug rod passes through the T-slot and extends to the inside of the plug hole, a handle is fixedly provided on the outer wall of the T-block, and a clamping device is provided inside the placement box.

[0007] The utility model is further configured as follows: the clamping device includes a vertical plate, a plurality of vertical plates are arranged and are evenly distributed, a top plate is fixedly provided on the upper end of the vertical plate, an arc-shaped hole is opened on the upper end surface of the top plate, a fixing strip is provided on the outer wall of the top plate, a threaded hole is opened on the fixing strip, a threaded column is provided inside the threaded hole, one end of the threaded column passes through the threaded hole and is rotatably provided with a clamping block, and the other end is fixedly provided with a hand wheel, so as to facilitate the fixation of the liquid nitrogen freezing tube.

[0008] The utility model is further configured such that the inner wall diameter of the clamp block is equal to the inner wall diameter of the arc-shaped hole, so as to facilitate the placement of the cryopreservation tube.

[0009] The utility model is further configured such that storage boxes are provided on the outer wall of the cabinet and at the four corners, cylinders are fixedly provided on the upper end surfaces of the storage boxes, output ends of the cylinders pass through the storage boxes and are provided with lifting blocks, the lifting blocks are slidably installed with the storage boxes, and rollers are rotatably provided at the lower ends of the lifting blocks to facilitate the movement of the device.

[0010] The utility model is further configured that both sides of the placement box are provided with sliders, and the inner wall of the cabinet is correspondingly provided with sliding grooves, and the sliders are slidably installed with the sliding grooves to facilitate guiding the moving direction of the placement box.

[0011] The utility model is further configured that a heat preservation layer is arranged on the inner wall of the cabinet body, so as to keep the temperature inside the cabinet body constant.

[0012] The utility model is further configured that a sealing door is hingedly provided on one side of the outer wall of the cabinet to facilitate closing the front end surface of the cabinet.

[0013] The utility model is further configured that cushion blocks are provided on the lower end surface of the cabinet and on the four corners, so as to protect the lower end surface of the cabinet.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a liquid helium storage device, which has the following beneficial effects:

[0016] 1. By arranging a placement plate, a placement box, a T-slot, a T-block, a guide hole, a guide rod, a reset spring, an insertion rod, a socket and a handle, the user can lift the handle upward to slide the T-block inside the T-slot so that the insertion rod is separated from the socket. At this time, the placement box can be taken out, which is convenient for taking and storing the liquid nitrogen freezing tube inside. In addition, by arranging a reset spring, when the handle is released, the insertion rod can be pushed back into the socket to fix the placement box and prevent it from falling out.

[0017] 2. By setting up the vertical plate, the top plate, the arc-shaped hole, the fixing bar, the threaded hole, the threaded column, the clamp block and the hand wheel, the user can put the liquid nitrogen cryotube into the arc-shaped hole, and then turn the hand wheel to make the threaded column drive the clamp block to move, so as to clamp and fix the cryotube to prevent it from tipping over in the placement box and affecting quick retrieval.

[0018] 3. By setting up a cabinet, a storage box, a cylinder, a lifting block and a roller, the user can control the cylinder to make its output end drive the lifting block and the roller to move downward so that the roller contacts the ground, thereby facilitating the change of the position of the device, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of a liquid helium storage device when it is not in use;

[0020] Figure 2 This is a schematic diagram of the installation of components inside the cabinet;

[0021] Figure 3 This is a schematic diagram of the installation of components inside the placement box;

[0022] Figure 4 It is a cross-sectional view of the installation for placing the box and T-block;

[0023] Figure 5 for Figure 4 A partial schematic diagram of the middle A area;

[0024] Figure 6 It is a schematic diagram of the positions of the guide hole, return spring, plug rod and handle on the T-block;

[0025] Figure 7 This is an exploded view of the installation of the storage box, cylinder, lifting block and rollers on the cabinet.

[0026] In the figure, 1, cabinet body; 2, placement plate; 3, placement box; 4, T-slot; 5, T-block; 6, guide hole; 7, guide rod; 8, return spring; 9, plug rod; 10, plug hole; 11, handle; 12, vertical plate; 13, top plate; 14, arc hole; 15, fixing strip; 16, threaded hole; 17, threaded column; 18, clamping block; 19, handwheel; 20, storage box; 21, cylinder; 22, lifting block; 23, roller; 24, slider; 25, slide groove; 26, sealing door; 27, cushion block. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0030] See also Figure 1-7 A liquid helium storage device comprises a cabinet 1, a placing plate 2 is fixedly provided on the inner wall of the cabinet 1, a plurality of placing plates 2 are provided and a placing box 3 is provided on the upper end thereof, a T-slot 4 is provided on the front end surface of the placing box 3, a T-block 5 is slidably provided inside the T-slot 4, a guide hole 6 is provided on the upper end surface of the T-block 5 and on both sides, a guide rod 7 is correspondingly provided inside the T-slot 4, the guide hole 6 and the guide rod 7 are slidably installed, a return spring 8 is fixedly provided on the outer end of the guide hole 6 and on the upper end surface of the T-block 5, the other end of the return spring 8 is fixedly connected to the inner wall of the T-slot 4, a plug rod 9 is fixedly provided on the lower end surface of the T-block 5, a plug hole 10 is correspondingly provided on the upper end surface of the placing plate 2, the lower end of the plug rod 9 passes through the T-slot 4 and extends to the inside of the plug hole 10, a handle 11 is fixedly provided on the outer wall of the T-block 5, a clamping device is provided inside the placing box 3, and a cushion block 27 is provided on the lower end surface of the cabinet 1 and on the four corners.

[0031] In this embodiment, the clamping device includes a vertical plate 12, which is provided with multiple and evenly distributed vertical plates 12. A top plate 13 is fixedly provided at the upper end of the vertical plate 12, and an arc-shaped hole 14 is opened on the upper end surface of the top plate 13. A fixing strip 15 is provided on the outer wall of the top plate 13, and a threaded hole 16 is opened on the fixing strip 15. A threaded column 17 is provided inside the threaded hole 16. One end of the threaded column 17 passes through the threaded hole 16 and is rotatably provided with a clamping block 18, and the other end is fixed with a hand wheel 19. The inner wall diameter of the clamping block 18 is equal to the inner wall diameter of the arc-shaped hole 14.

[0032] More specifically, the user can lift the handle 11 upward to make the T-block 5 slide inside the T-slot 4 so that the insertion rod 9 is disengaged from the insertion hole 10. At this time, the placement box 3 can be taken out, and then the liquid nitrogen cryotube can be placed in the arc hole 14. Then, the threaded column 17 drives the clamping block 18 to move by turning the handwheel 19 to clamp and fix the cryotube to achieve the storage effect.

[0033] See also Figure 1 and Figure 7As an implementation method for moving the device: storage boxes 20 are provided on the outer wall of the cabinet 1 and at the four corners, cylinders 21 are fixedly provided on the upper end surfaces of the storage boxes 20, output ends of the cylinders 21 pass through the storage boxes 20 and are provided with lifting blocks 22, the lifting blocks 22 are slidably installed with the storage boxes 20, and rollers 23 are rotatably provided at the lower ends of the lifting blocks 22.

[0034] Specifically, the user can control the cylinder 21 to cause its output end to drive the lifting block 22 and the roller 23 to move downward, so that the roller 23 contacts the ground, thereby facilitating the movement of the device.

[0035] Please refer to Figure 2 As a further implementation method for guiding the moving direction of the placement box 3: sliders 24 are provided on both sides of the placement box 3, and a slide groove 25 is correspondingly opened on the inner wall of the cabinet 1, and the slider 24 and the slide groove 25 are slidably installed.

[0036] Specifically, the moving direction of the placement box 3 can be guided to facilitate taking.

[0037] Please refer to Figure 1 and Figure 2 As a further implementation method for keeping the cabinet 1 sealed, a heat-insulating layer is provided on the inner wall of the cabinet 1 , and a sealing door 26 is hingedly provided on one side of the outer wall of the cabinet 1 .

[0038] Specifically, the temperature inside the cabinet 1 can be kept constant to meet the storage conditions of liquid nitrogen.

[0039] To sum up, when the overall equipment is in use: the user can lift the handle 11 upwards to make the T-block 5 slide inside the T-slot 4 so that the insertion rod 9 is disengaged from the insertion hole 10. At this time, the placement box 3 can be taken out through the cooperation of the slider 24 and the slide groove 25, and then the liquid nitrogen freezing tube is placed in the arc hole 14, and then the threaded column 17 is turned by the hand wheel 19 to drive the clamping block 18 to move, so as to clamp and fix the freezing tube to prevent it from tipping over in the placement box 3 and affecting the taking out, and finally the sealing door 26 is closed to achieve the storage effect. When the device needs to be moved, the cylinder 21 can be controlled to make its output end drive the lifting block 22 and the roller 23 to move downward, so that the roller 23 contacts the ground, thereby facilitating the change of the position of the device, saving time and effort.

[0040] When liquid nitrogen needs to be stored, the user can lift the handle 11 upwards to make the T-block 5 slide inside the T-slot 4 so that the insertion rod 9 is disengaged from the insertion hole 10. At this time, the placement box 3 can be taken out through the cooperation of the slider 24 and the slide groove 25, and then the liquid nitrogen freezing tube is placed in the arc hole 14. Then, the threaded column 17 drives the clamping block 18 to move by turning the hand wheel 19 to clamp and fix the freezing tube to achieve the storage effect.

[0041] When the device needs to be moved, the cylinder 21 can be controlled so that its output end drives the lifting block 22 and the roller 23 to move downward, so that the roller 23 contacts the ground, thereby facilitating the change of the position of the device.

[0042] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A liquid helium storage device, comprising a cabinet (1), characterized in that: A placement plate (2) is fixedly provided on the inner wall of the cabinet (1), the placement plates (2) are provided with a plurality of placement boxes (3) at the upper ends thereof, a T-shaped slot (4) is provided on the front end surface of the placement box (3), a T-shaped block (5) is slidably provided inside the T-shaped slot (4), guide holes (6) are provided on the upper end surface and on both sides of the T-shaped block (5), a guide rod (7) is correspondingly provided inside the T-shaped slot (4), the guide hole (6) is slidably mounted on the guide rod (7), and the outer end of the guide hole (6) is A return spring (8) is fixedly provided on the upper end surface of the T-block (5), and the other end of the return spring (8) is fixedly connected to the inner wall of the T-slot (4). An insertion rod (9) is fixedly provided on the lower end surface of the T-block (5). A corresponding insertion hole (10) is provided on the upper end surface of the placement plate (2). The lower end of the insertion rod (9) passes through the T-slot (4) and extends to the inside of the insertion hole (10). A handle (11) is fixedly provided on the outer wall of the T-block (5), and a clamping device is provided inside the placement box (3).

2. A liquid helium storage device according to claim 1, characterized in that: The clamping device comprises a vertical plate (12), wherein the vertical plates (12) are provided with a plurality of vertical plates (12) and are evenly distributed, a top plate (13) is fixedly provided at the upper end of each vertical plate (12), an arc-shaped hole (14) is provided on the upper end surface of each top plate (13), a fixing strip (15) is provided on the outer wall of each top plate (13), a threaded hole (16) is provided on each fixing strip (15), a threaded column (17) is provided inside each threaded hole (16), one end of each threaded column (17) passes through the threaded hole (16) and is rotatably provided with a clamping block (18), and the other end of each threaded column (17) is fixedly provided with a hand wheel (19).

3. A liquid helium storage device according to claim 2, characterized in that: The inner wall diameter of the clamping block (18) is equal to the inner wall diameter of the arc-shaped hole (14).

4. A liquid helium storage device according to claim 1, characterized in that: Storage boxes (20) are provided on the outer wall of the cabinet (1) and at the four corners; a cylinder (21) is fixedly provided on the upper end surface of the storage box (20); the output end of the cylinder (21) passes through the storage box (20) and is provided with a lifting block (22); the lifting block (22) is slidably mounted on the storage box (20); and a roller (23) is rotatably provided at the lower end of the lifting block (22).

5. A liquid helium storage device according to claim 1, characterized in that: Both sides of the placement box (3) are provided with sliders (24), and the inner wall of the cabinet (1) is correspondingly provided with a slide groove (25), and the sliders (24) and the slide grooves (25) are slidably installed.

6. A liquid helium storage device according to claim 1, characterized in that: A heat-insulating layer is provided on the inner wall of the cabinet (1).

7. A liquid helium storage device according to claim 1, characterized in that: A sealed door (26) is hingedly provided on one side of the outer wall of the cabinet (1).

8. A liquid helium storage device according to claim 1, characterized in that: Pads (27) are provided on the lower end surface of the cabinet (1) and at the four corners.

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