Cell cryopreservation rack combined structure for liquid nitrogen tank

Abstract

The utility model discloses a cell cryopreservation rack combined structure for a liquid nitrogen tank. Relates to the field of cell preservation. When a cell cryopreservation frame is stored in an existing liquid nitrogen tank, the problem that the cell cryopreservation frame cannot be stored in the middle of an opening of the liquid nitrogen tank is solved, and space in a tank body is wasted. The device comprises a supporting annular plate assembly, side cryopreservation frames and a middle cryopreservation frame, lifting rods of the side cryopreservation frames are hung in lifting rod hanging grooves, the side cryopreservation frames are annularly arranged in an inner container of a liquid nitrogen tank body, the middle cryopreservation frame is arranged in the middle of the side cryopreservation frames, and the side cryopreservation frames are arranged in the middle of the middle cryopreservation frame. A lifting rod of the middle cryopreservation frame is hung on the supporting annular plate assembly, and the middle cryopreservation frame is arranged at the position, close to the center, of the inner container. According to the cooperative use of the supporting ring plate assembly, the side cryopreservation frame and the middle cryopreservation frame, more cell storage frames stored in the liquid nitrogen tank are added, and the space in the liquid nitrogen tank body is fully utilized. The cell cryopreservation frame is applied to the field of cell cryopreservation frames of liquid nitrogen tanks.

Description

Technical Field

[0001] The utility model relates to the field of liquid nitrogen tanks for cell preservation, and particularly relates to a combined structure of cell cryopreservation racks for a liquid nitrogen tank. Background Art

[0002] A cell cryopreservation rack is a device for storing cell cryopreservation tubes. The labeled cell cryopreservation tubes are inserted into the slots of the cryopreservation rack neatly according to a certain order and classification. Relevant information of the cryopreservation tubes, such as cell name, cryopreservation date, batch number, etc., is marked at the corresponding positions on the cryopreservation rack, and detailed records are also made in a special record book. Then, the cell cryopreservation rack is successively placed into the liquid nitrogen tank, and the lifting rod on the cell cryopreservation rack is hung on the top lifting rod hanging groove of the liquid nitrogen tank to cryopreserve the cells. Therefore, it plays an important role in the process of cell cryopreservation. The cell cryopreservation rack is usually made of metal such as stainless steel or high-strength plastic, providing support and a stable structure for the entire cryopreservation rack to ensure that it is not easily deformed or damaged during use.

[0003] Currently, due to the space limitation inside the liquid nitrogen tank, the effective storage space inside the liquid nitrogen tank is limited. Too many cryopreservation racks may lead to unreasonable placement. Therefore, only six or eight groups of cell cryopreservation racks can be stored in the currently used liquid nitrogen tank. In order to be able to send the cell cryopreservation rack into the liquid nitrogen tank, the inlet size of the liquid nitrogen tank needs to be processed larger than the size of the cryopreservation rack. When all the cryopreservation racks are stored in the liquid nitrogen tank, no more cryopreservation racks can be placed in the area at the opening, resulting in waste of the area at the inlet of the liquid nitrogen tank and inability to store too many cell cryopreservation racks. Summary of the Invention

[0004] The present invention aims to solve the problem that when storing cell cryopreservation racks in the existing liquid nitrogen tank, no more cell cryopreservation racks can be placed in the middle position at the opening of the liquid nitrogen tank. Therefore, a combined structure of cell cryopreservation racks for a liquid nitrogen tank is provided.

[0005] The technical solution of the utility model is as follows:

[0006] A combined structure of cell cryopreservation racks for a liquid nitrogen tank includes a liquid nitrogen tank body. The liquid nitrogen tank body has an inner tank, and the top of the liquid nitrogen tank body has a liquid nitrogen tank top sleeve. A group of lifting rod hanging grooves are equidistantly arranged on the upper surface of the liquid nitrogen tank top sleeve. It also includes a support ring plate assembly, side cryopreservation racks, and a middle cryopreservation rack. The lifting rods of the side cryopreservation racks are respectively hung in the lifting rod hanging grooves, and a group of side cryopreservation racks are arranged in a ring in the inner tank of the liquid nitrogen tank body. A middle cryopreservation rack is arranged at the middle position of a group of side cryopreservation racks. The lifting rod of the middle cryopreservation rack is hung on the support ring plate assembly, and the middle cryopreservation rack is arranged at a position close to the center of the inner tank.

[0007] The support ring plate assembly is installed on the inner wall of the top inlet of the liquid nitrogen tank body, and the lower part of the support ring plate assembly is supported by the tail extension plates on a group of side cryopreservation racks.

[0008] Preferably, the support ring plate assembly includes an annular plate, a limiting pair of plates, a vertical plate, a shaft member and a rotating support rod;

[0009] The limiting pair of plates and the vertical plate are symmetrically installed on the top of the annular plate. The vertical plate is rotatably connected to the shaft member. The shaft member is fixedly connected to the rotating support rod. The shaft member is inserted into the round hole of the vertical plate and the D-shaped pin is inserted into the shaft member;

[0010] The rotating support rod is rotatably connected to the vertical plate through the shaft member, and the end of the rotating support rod turns between the two plate surfaces of the limiting pair of plates.

[0011] Preferably, an L-shaped lifting rod is connected to the top right side of the side cryopreservation rack. A tail extension plate is connected to the rod surface near the top of the L-shaped lifting rod, and the tail extension plate is vertically connected to the L-shaped lifting rod.

[0012] Preferably, a T-shaped lifting rod is fixedly connected to the middle position at the top of the middle cryopreservation rack.

[0013] Preferably, the cross beam on the T-shaped lifting rod is hung between the two rotating support rods on the support ring plate assembly, and the middle cryopreservation rack is hung in the inner tank of the liquid nitrogen tank body.

[0014] Preferably, the diameter of the annular plate on the support ring plate assembly is smaller than the diameter of the inner wall of the liquid nitrogen tank top sleeve, so that the annular plate can be inserted into the liquid nitrogen tank top sleeve.

[0015] Preferably, the rotating support rod is of a solid rod structure, and a notch structure is provided at the middle position of the top of the rotating support rod.

[0016] Preferably, the length of the cross beam at the top of the T-shaped lifting rod is greater than the distance between the two rotating support rods. The cross beam of the T-shaped lifting rod is hung in the notch structure on the rotating support rod to prevent the cross beam of the T-shaped lifting rod from sliding on the rotating support rod.

[0017] The utility model has the following effects compared with the prior art:

[0018] 1. The utility model vertically arranges tail extension plates at the lifting rods on the side cryopreservation racks of the original structure. When a group of side cryopreservation racks are sent into the liquid nitrogen tank, a group of tail extension plates are on the same horizontal plane, which can support the support ring plate assembly, so that the support ring plate assembly is installed in the liquid nitrogen tank top sleeve of the liquid nitrogen tank body, and the support ring plate assembly and the middle cryopreservation rack are used in cooperation.

[0019] 2. The utility model adds a middle freezing rack, the main frame of the middle freezing rack is the same as the frame of the side freezing rack,

[0020] A T-shaped lifting rod is installed on the top of the middle freezing rack. By setting the cooperation between the middle freezing rack, the T-shaped lifting rod and the supporting ring plate assembly, the middle freezing rack is set in the middle position of the liquid nitrogen tank body, thereby increasing the utilization rate of the internal space of the liquid nitrogen tank body and allowing more freezing racks to be stored in the liquid nitrogen tank body. The problem that the middle position of the opening of the existing liquid nitrogen tank cannot store cell freezing racks when storing cell freezing racks is solved.

[0021] 3. The utility model is provided with a support ring plate assembly, which includes an annular plate, a limit plate, a vertical plate, a shaft and a rotating support rod; the limit plate and the vertical plate are symmetrically installed on the top of the annular plate, and the rotating support rod is rotatably connected with the vertical plate through the shaft, and the end of the rotating support rod is rotated between the two plate surfaces of the limit plate. By providing two rotating support rods, the middle freezing rack can be hung. When the middle freezing rack is taken out of the liquid nitrogen tank, it only needs to rotate the two rotating support rods to take the middle freezing rack out of the middle area of ​​the liquid nitrogen tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 for Figure 1 A top view of

[0024] Figure 3 for Figure 1 A partial enlarged view of middle A;

[0025] Figure 4 is a top view of the support ring plate assembly;

[0026] Figure 5 for Figure 4 A schematic diagram of the structure after the rotating support rod is rotated;

[0027] Figure 6 It is a schematic diagram of the structure of the side freezing rack;

[0028] Figure 7 It is a structural schematic diagram of the middle freezing rack;

[0029] Figure 8 This is a top view of the original side freezing rack hanging on the top cover of the liquid nitrogen tank;

[0030] Figure 9 It is a structural schematic diagram of the rotating support rod;

[0031] Figure 10 It is a top view of the liquid nitrogen tank body;

[0032] In the figure: 1, the main body of the liquid nitrogen tank; 2, the support ring plate assembly; 3, the side cryopreservation rack; 4, the middle cryopreservation rack; 5, the top sleeve of the liquid nitrogen tank; 6, the hanging groove for the lifting rod; 7, the inner liner; 8, the tail extension plate; 9, the L-shaped lifting rod; 10, the T-shaped lifting rod; 11, the notch structure; 21, the annular plate; 22, the limiting pair plate; 23, the vertical plate; 24, the shaft part; 25, the rotating support rod. Specific embodiments

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0034] Specific embodiment one: In combination with Figure 1 and Figure 2 describe this embodiment. A combined structure of a cell cryopreservation rack for a liquid nitrogen tank in this embodiment includes the main body 1 of the liquid nitrogen tank. The inner liner 7 is provided inside the main body 1 of the liquid nitrogen tank. The top of the main body 1 of the liquid nitrogen tank is provided with a top sleeve 5 of the liquid nitrogen tank. A group of hanging grooves 6 for the lifting rod are equidistantly opened on the upper surface of the top sleeve 5 of the liquid nitrogen tank; it also includes a support ring plate assembly 2, a side cryopreservation rack 3 and a middle cryopreservation rack 4. The lifting rods of the side cryopreservation rack 3 are respectively hung in the hanging grooves 6 for the lifting rod, and a group of side cryopreservation racks 3 are arranged in a ring in the inner liner of the main body 1 of the liquid nitrogen tank. A middle cryopreservation rack 4 is arranged at the middle position of a group of side cryopreservation racks 3. The lifting rod of the middle cryopreservation rack 4 is hung on the support ring plate assembly 2, and the middle cryopreservation rack 4 is arranged at a position close to the center of the inner liner 7.

[0035] The support ring plate assembly 2 is installed on the inner wall of the top inlet of the main body 1 of the liquid nitrogen tank, and the lower part of the support ring plate assembly 2 is supported by the tail extension plates 8 on a group of side cryopreservation racks 3.

[0036] The side cryopreservation rack 3 and the middle cryopreservation rack 4 are detachably connected to the inner liner 7 of the main body 1 of the liquid nitrogen tank; there is a gap between a group of side cryopreservation racks 3 and the middle cryopreservation rack 4, so that the liquid nitrogen can maintain good circulation in the inner liner of the tank, ensuring the uniform temperature of the side cryopreservation rack 3 and the middle cryopreservation rack 4.

[0037] The width of the hanging groove 6 for the lifting rod on the top sleeve 5 of the liquid nitrogen tank is greater than the rod diameter of the lifting rod of the side cryopreservation rack 3, so that the lifting rod of the side cryopreservation rack 3 is inserted into the hanging groove 6 for the lifting rod. A tail extension plate 8 is vertically fixed on the vertical rod surface of each side cryopreservation rack 3 by welding. The tail extension plate 8 is a rectangular plate structure, and the top of the tail extension plate 8 plays a supporting role for the annular plate 21 of the support ring plate assembly 2.

[0038] Specific embodiment two: In combination with Figure 3 — Figure 5Describe this embodiment. A combined structure of a cell freezing rack for a liquid nitrogen tank according to this embodiment. The support ring plate assembly 2 includes an annular plate 21, a limiting pair plate 22, a vertical plate 23, a shaft member 24, and a rotating support rod 25;

[0039] The limiting pair plate 22 and the vertical plate 23 are symmetrically installed on the top of the annular plate 21. The vertical plate 23 is rotatably connected to the shaft member 24. A fixed connection is made between the shaft member 24 and the rotating support rod 25. The shaft member 24 is inserted into the round hole of the vertical plate 23, and a D-shaped pin is inserted into the shaft member 24;

[0040] The rotating support rod 25 is rotatably connected to the vertical plate through the shaft member 24, and the end of the rotating support rod 25 is turned between the two plate surfaces of the limiting pair plate 22.

[0041] The limiting pair plate 22 and the vertical plate 23 are fixed to the top of the annular plate 21 by welding. The distance between the two rectangular plates of the limiting pair plate is greater than the diameter of the rotating support rod 25, so that the end of the rotating support rod 25 can be inserted between the two rectangular plates on the limiting pair plate.

[0042] The length of the rotating support rod 25 is greater than the diameter of the inner annular surface of the annular plate 21, so that the end of the rotating support rod 25 can be placed above the annular plate 21.

[0043] The shaft member 24 is a cylindrical structural member, and the end of the shaft member 24 is vertically and fixedly connected to one end of the rotating support rod 25 by welding to form an integral structure. The shaft member 24 passes through the insertion hole on the vertical plate, and a hole is provided on the shaft member. When the shaft member 4 is inserted into the round hole of the vertical plate 23, it is fixed by a D-shaped pin to prevent the shaft member 24 from falling off the vertical plate 23.

[0044] Specific Embodiment Three: Combine Figure 6 Describe this embodiment. A combined structure of a cell freezing rack for a liquid nitrogen tank according to this embodiment. An L-shaped lifting rod 9 is connected to the top of the side freezing rack 3 on the right side. A tail extension plate 8 is connected to the rod surface near the top of the L-shaped lifting rod. The tail extension plate 8 is vertically connected to the L-shaped lifting rod.

[0045] The top of the L-shaped lifting rod 9 is fixedly connected to the top of the side freezing rack 3 to form an integral structure. This structure is the structure of the existing side freezing rack 3; on the L-shaped lifting rod 9 of the new type on the side freezing rack 3, a tail extension plate 8 is vertically arranged on one side. When a group of side freezing racks 3 are hung on the groove through the L-shaped lifting rod 9, at this time, the tail extension plates 8 are on the same horizontal plane, and the tail extension plates 8 are equidistantly arranged in the top sleeve of the liquid nitrogen tank, and the support ring plate assembly is supported by a group of tail extension plates 8.

[0046] Specific Embodiment Four: Combine Figure 7Describing this embodiment, a combined structure of a cell freezing rack for a liquid nitrogen tank in this embodiment, a T-shaped lifting rod 10 is fixedly connected to the middle position at the top of the middle freezing rack 4.

[0047] The top of the T-shaped lifting rod 10 is fixedly connected to the top of the middle freezing rack 4 by welding to form an integral structure. By arranging the T-shaped lifting rod 10 at the top of the middle freezing rack 4, the T-shaped lifting rod 10 can be hung on the two rotating support rods 25 on the support ring plate assembly 2, so as to hang the middle freezing rack 4 in the middle of the inner tank 7 through the T-shaped lifting rod 10.

[0048] The T-shaped lifting rod 10 has a round rod structure, and the rod diameter of the T-shaped lifting rod 10 is smaller than the length of the notch structure on the rotating support rod 25.

[0049] Specific embodiment five: Combining Figure 7 Describing this embodiment, a combined structure of a cell freezing rack for a liquid nitrogen tank in this embodiment, the cross beam on the T-shaped lifting rod 10 is hung between the two rotating support rods 25 on the support ring plate assembly 2, and the middle freezing rack 4 is hung in the inner tank 7 of the liquid nitrogen tank body 1.

[0050] The T-shaped lifting rod 10 is composed of a cross beam and a longitudinal beam. The top of the longitudinal beam is vertically and fixedly connected to the middle position at the bottom of the cross beam. The two sides of the cross beam are hook-shaped structures. By arranging the hook-shaped structures on the cross beam of the T-shaped lifting rod 10, the T-shaped lifting rod 10 can be hung on the rotating support rod 25 on the support ring plate assembly 2.

[0051] Specific embodiment six: Combining Figure 3 — Figure 10 Describing this embodiment, a combined structure of a cell freezing rack for a liquid nitrogen tank in this embodiment, the diameter of the annular plate 21 on the support ring plate assembly 2 is smaller than the inner diameter of the inner wall of the liquid nitrogen tank top sleeve 5, so as to insert the annular plate 21 into the liquid nitrogen tank top sleeve 5.

[0052] Specific embodiment seven: Combining Figure 9 Describing this embodiment, a combined structure of a cell freezing rack for a liquid nitrogen tank in this embodiment, the rotating support rod 25 is a solid rod structure, and a notch structure 11 is opened at the middle position at the top of the rotating support rod 25.

[0053] The notch structure 11 is clamped at the middle position at the top of the rotating support rod 25. When the T-shaped lifting rod 10 on the middle freezing rack 4 is hung in the notch structure 11 on the rotating support rod 25, the T-shaped lifting rod 10 of the middle freezing rack 4 can only move in the notch structure 11, which plays a role in limiting the T-shaped lifting rod, so as to ensure the stability of the middle freezing rack.

[0054] Specific embodiment eight: Combining Figure 1— Figure 3 To describe this embodiment, a combined structure of a cell freezing rack for a liquid nitrogen tank according to this embodiment. The length of the top crossbar of the T-shaped lifting rod 10 is greater than the distance between the two rotating support rods 25. The crossbar of the T-shaped lifting rod 10 is hung in the notch structure 11 on the rotating support rod 25 to prevent the crossbar of the T-shaped lifting rod 10 from sliding on the rotating support rod 25.

[0055] Working principle:

[0056] Hang the L-shaped lifting rod 9 on the side freezing rack 3 in the lifting rod hanging groove on the top sleeve 5 of the liquid nitrogen tank. The crossbar on the L-shaped lifting rod 9 is snapped into the lifting rod hanging groove to complete the installation of the side freezing rack 3. At this time, a group of side freezing racks are hung in the inner tank 7 of the liquid nitrogen tank body 1 at equal intervals in an annular structure. Since a tail extension plate 8 is installed on each side freezing rack, when a group of side freezing racks 3 are installed in the inner tank, a group of tail extension plates 8 are arranged at equal intervals in the top sleeve of the liquid nitrogen tank at this time;

[0057] Set the bottom of the annular plate on the support ring plate assembly 2 above a group of tail extension plates 8. The group of tail extension plates 8 play a supporting role for the annular plate of the support ring plate assembly 2. Insert the middle freezing rack 4 into the annular plate of the support ring plate assembly 2. Rotate the two rotating support rods 25 on the support ring plate assembly 2 and insert the ends of the two rotating support rods 25 into the limiting opposing plates 22 on the annular plate 21 to limit the ends of the rotating support rods 25. Rotate the T-shaped lifting rod 10 on the middle freezing rack 4 to make it perpendicular to the rotating support rod 25, and send the T-shaped lifting rod 10 into the notch structure in the rotating support rod 25, so as to send the middle freezing rack 4 into the inner tank 7, making full use of the space of the inner tank 7 of the liquid nitrogen tank body 1.

[0058] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, according to the technical essence of the present invention, any simple modification, equivalent replacement, and improvement of the above embodiments within the spirit and principle of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A cell freezing rack assembly structure for a liquid nitrogen tank, comprising a liquid nitrogen tank body (1), wherein the liquid nitrogen tank body (1) has an inner liner (7), the top of the liquid nitrogen tank body (1) has a liquid nitrogen tank top cover (5), and a group of lifting rod hanging grooves (6) are equidistantly opened on the upper surface of the liquid nitrogen tank top cover (5); characterized in that: It also comprises a supporting ring plate assembly (2), a side freezing rack (3) and a middle freezing rack (4), wherein the lifting rods of the side freezing racks (3) are respectively hung in the lifting rod hanging grooves (6), and a group of side freezing racks (3) are arranged in a ring shape in the inner container of the liquid nitrogen tank body (1), and a middle freezing rack (4) is arranged in the middle position of a group of side freezing racks (3), and the lifting rod of the middle freezing rack (4) is hung on the supporting ring plate assembly (2), and the middle freezing rack (4) is arranged at a position close to the center of the inner container (7); The support ring plate assembly (2) is installed at the inner wall of the top entrance of the liquid nitrogen tank body (1), and the lower part of the support ring plate assembly (2) is supported by a group of tail extension plates (8) on the side freezing racks (3).

2. A cell freezing rack combination structure for a liquid nitrogen tank according to claim 1, characterized in that: The supporting ring plate assembly (2) comprises an annular plate (21), a limiting plate (22), a vertical plate (23), a shaft (24) and a rotating support rod (25); The top of the annular plate (21) is symmetrically mounted with a limit plate (22) and a vertical plate (23); the vertical plate (23) is rotatably connected to a shaft (24); the shaft (24) is fixedly connected to a rotating support rod (25); the shaft (24) is inserted into a circular hole of the vertical plate (23) and a D-shaped pin is inserted into the shaft (24); The rotating support rod (25) is rotatably connected to the vertical plate via a shaft (24), and the end of the rotating support rod (25) is rotated between the two plate surfaces of the limiting counter plate (22).

3. The cell freezing rack assembly structure for a liquid nitrogen tank according to claim 1, characterized in that: An L-shaped lifting rod (9) is connected to the right side of the top of the side freezing rack (3), and a tail extension plate (8) is connected to the rod surface of the L-shaped lifting rod close to the top, and the tail extension plate (8) is vertically connected to the L-shaped lifting rod.

4. A cell freezing rack assembly structure for a liquid nitrogen tank according to claim 1, characterized in that: A T-shaped lifting rod (10) is fixedly connected to the middle position of the top of the middle freezing rack (4).

5. A cell freezing rack combination structure for a liquid nitrogen tank according to claim 4, characterized in that: The crossbeam on the T-shaped lifting rod (10) is hung between two rotating support rods (25) on the supporting ring plate assembly (2), so that the middle freezing rack (4) is hung in the inner liner (7) of the liquid nitrogen tank body (1).

6. A cell freezing rack combination structure for a liquid nitrogen tank according to claim 1 or 2, characterized in that: The diameter of the annular plate (21) on the supporting ring plate assembly (2) is smaller than the diameter of the inner wall of the top sleeve (5) of the liquid nitrogen tank, so that the annular plate (21) can be inserted into the top sleeve (5) of the liquid nitrogen tank.

7. A cell freezing rack assembly structure for a liquid nitrogen tank according to claim 2, characterized in that: The rotating support rod (25) is a solid rod structure, and a notch structure (11) is provided at the middle position of the top of the rotating support rod (25).

8. The cell freezing rack assembly structure for a liquid nitrogen tank according to claim 5, characterized in that: The length of the top crossbeam of the T-shaped lifting rod (10) is greater than the distance between the two rotating support rods (25), and the crossbeam of the T-shaped lifting rod (10) is hung in the notch structure on the rotating support rod (25) to prevent the crossbeam of the T-shaped lifting rod (10) from sliding on the rotating support rod (25).

9. The cell freezing rack assembly structure for a liquid nitrogen tank according to claim 1, characterized in that: The side freezing rack (3) and the middle freezing rack (4) have the same frame structure, and the cell freezing boxes are stored in the side freezing rack (3) and the middle freezing rack (4) in an inserted structure.

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