Human body blood stem cell cooling preservation device

Abstract

The utility model discloses a human body blood stem cell cooling preservation device, which belongs to the technical field of stem cell preservation and comprises a protective shell, a positioning component is arranged at the inner top of the protective shell, a partition plate is mounted in the protective shell, and a lifting component is arranged at the bottom of the partition plate. Under the pressure effect of the shell cover, after the diagonal plane makes contact with the protective shell, the clamping block can automatically retract into the through groove, after the shell cover and the protective shell are completely connected, under the elastic effect of the spring, the clamping block can automatically pop out to be connected with the clamping groove in an inserted mode to complete positioning of the shell cover, the control block is moved to drive the clamping block to be separated from the clamping groove, and then the shell cover can be opened. The switch is convenient and the cost of the device is reduced; the lifting assembly is arranged, the double-shaft motor drives the two screw rods to rotate synchronously, under the meshing connection between the screw rods and the threaded barrel, the threaded barrel can drive the tank cover and the extracting frame to move downwards in a limited mode, lifting is stable, transmission is stable, and the taking and placing effect of the device is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of stem cell preservation, and in particular relates to a human blood stem cell cooling and preservation device. Background Art

[0002] Stem cells are a type of multipotent cells with the ability to self-renew. Under certain conditions, they can differentiate into a variety of APSC multipotent cells. They are a type of primitive cells with the potential for self-replication and multidirectional differentiation. That is, stem cells remain in an undifferentiated state and have the ability to proliferate. Under appropriate conditions or given appropriate signals, they can differentiate into a variety of functional cells or tissues and organs. The medical community calls them "universal cells." The usual method for preserving stem cells is to freeze them at a deep cryogenic temperature of -196°C, usually using liquid nitrogen tanks for storage.

[0003] Chinese patent application No. 202321070246.7 discloses a human blood stem cell cooling and preservation device, comprising a protective shell, a liquid nitrogen tank, an extraction and storage assembly and a cell storage box, wherein the liquid nitrogen tank is arranged in the protective shell, the extraction and storage assembly comprises an extraction rack, a lifting rack, an outer gear ring, a lifting bevel gear and a lifting plate, the cell storage box is arranged on the extraction rack, the cell storage box is arranged in the liquid nitrogen tank, the liquid nitrogen tank is provided with a tank mouth, the pipe mouth is provided with a through hole, the extraction rack passes through the through hole, the lifting rack is arranged on the extraction rack, the outer side of the liquid nitrogen tank is rotatably provided with an outer gear ring, the liquid nitrogen tank is rotatably provided with a lifting bevel gear, an upper bevel gear ring is provided on the upper side of the outer gear ring, and the upper bevel gear ring is meshed with the lifting bevel gear; the utility model belongs to the field of stem cell preservation, and specifically is a human blood stem cell cooling and preservation device that reduces the liquid nitrogen contact between the staff and the liquid nitrogen tank and improves safety and convenience.

[0004] In the above-mentioned public patent, the shell cover is opened and closed by pushing with double hydraulic rods. The double hydraulic rod drive makes the cost of the device high. The motor drives the bevel gear, bevel gear ring, lifting bevel gear ring and other parts to engage with each other to enable the extraction rack to lift the cell storage box from the liquid nitrogen tank. The structure is cumbersome and the lifting stability of the structure is poor. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a human blood stem cell cooling and storage device, which has the characteristics of reducing cost and stable structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a human blood stem cell cooling and preservation device, comprising a protective shell, a positioning assembly is provided at the inner top of the protective shell, a rotating part is installed at the top of the protective shell, a shell cover is embedded inside the rotating part, a partition is installed inside the protective shell, a lifting assembly is provided at the bottom of the partition, a liquid nitrogen tank is installed at the top of the partition, a tank cover is provided at the top of the liquid nitrogen tank, and an extraction rack is connected to the bottom of the tank cover.

[0007] Preferably, the positioning component includes an auxiliary component, a spring, a through slot, a card block, a card slot and a control block, wherein a card slot is provided on the inner top of the protective shell, a through slot is provided inside the shell cover, the side of the through slot is connected to the auxiliary component, a spring is embedded in the through slot, the side of the spring is connected to the control block, the bottom of the control block is connected to the card block, and a plug-in structure is provided between the card block and the card slot.

[0008] Preferably, the auxiliary component includes a sealing plate, a receiving groove and a beveled surface, wherein the side of the through groove is connected to the receiving groove, the surface of the control block is connected to the sealing plate, and the side end of the clamping block is provided with a beveled surface.

[0009] Preferably, the lifting assembly includes a threaded barrel, a screw, bevel gear one, bevel gear two and a double-axis motor, wherein a double-axis motor is arranged at the bottom of the partition, bevel gear two is connected to both sides of the double-axis motor, two screws are embedded inside the partition, bevel gear one is connected to the bottom end of the screw, and two threaded barrels are connected to the bottom of the tank cover.

[0010] Preferably, the sides of the bevel gear 1 and the bevel gear 2 are meshed with each other, and the bevel gear 2 is located on the same side as the meshing bevel gear 1.

[0011] Preferably, a positioning block is sleeved on the surface of the screw inside the partition, the positioning block is in a circular ring structure, and a limiting groove is provided on the inner surface of the liquid nitrogen tank.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model sets a positioning component. Under the pressure of the shell cover, the card block will automatically retract into the through groove after the chamfered surface contacts the protective shell. After the shell cover and the protective shell are fully connected, under the elastic action of the spring, the card block will automatically pop out and plug into the card slot to complete the positioning of the shell cover. The shell cover can be opened by moving the control block to separate the card block from the card slot. The switch is convenient and the cost of the device is reduced.

[0014] 2. The utility model sets a lifting component, and a double-axis motor drives the two bevel gears to rotate. Under the meshing transmission between the bevel gears 2 and 1, the two screws can rotate synchronously, and under the meshing connection between the screws and the threaded barrels, the two threaded barrels can drive the can cover and the extraction rack to move downward. The lifting is smooth and the transmission is stable, which can make the device have a higher picking and placing effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is the front view of the positioning component of the utility model;

[0017] Figure 3 This is the front view of the lifting component of the utility model.

[0018] In the figure: 1. Shell cover; 2. Rotating part; 3. Protective shell; 4. Lifting assembly; 41. Threaded barrel; 42. Screw; 43. Positioning block; 44. Bevel gear one; 45. Bevel gear two; 46. Dual-axis motor; 47. Limiting groove; 5. Partition; 6. Liquid nitrogen tank; 7. Positioning assembly; 71. Auxiliary assembly; 711. Sealing plate; 712. Storage groove; 713. Bevel cut surface; 72. Spring; 73. Through groove; 74. Block; 75. Slot; 76. Control block; 8. Tank cover; 9. Extraction rack. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] See also Figure 1-3 The utility model provides the following technical solutions: a human blood stem cell cooling and preservation device, comprising a protective shell 3, a positioning component 7 is provided on the inner top of the protective shell 3, a rotating part 2 is installed on the top of the protective shell 3, a shell cover 1 is embedded in the rotating part 2, a partition 5 is installed inside the protective shell 3, a lifting component 4 is provided at the bottom of the partition 5, a liquid nitrogen tank 6 is installed on the top of the partition 5, a tank cover 8 is provided on the top of the liquid nitrogen tank 6, and an extraction rack 9 is connected to the bottom of the tank cover 8.

[0022] Specifically, the positioning component 7 includes an auxiliary component 71, a spring 72, a through slot 73, a block 74, a slot 75 and a control block 76. The inner top of the protective shell 3 is provided with a slot 75, the interior of the shell cover 1 is provided with a through slot 73, the side of the through slot 73 is connected to the auxiliary component 71, the interior of the through slot 73 is embedded with a spring 72, the side of the spring 72 is connected to the control block 76, the bottom of the control block 76 is connected to the block 74, and the block 74 and the slot 75 are plug-in structures.

[0023] By adopting the above technical solution, under the elastic action of the spring 72, the card block 74 will automatically pop out and plug into the card slot 75 to complete the positioning of the shell cover 1. The moving control block 76 drives the card block 74 to separate from the card slot 75 to open the shell cover 1, which is convenient for opening and closing and also reduces the cost of the device.

[0024] Specifically, the auxiliary component 71 includes a sealing plate 711, a receiving groove 712 and a beveled surface 713. The side of the through groove 73 is connected to the receiving groove 712, the surface of the control block 76 is connected to the sealing plate 711, and the side end of the clamping block 74 is provided with a beveled surface 713.

[0025] By adopting the above technical solution, the block 74 will automatically retract into the through groove 73 after the chamfered surface 713 contacts the protective shell 3 under the pressure of the shell cover 1, and the sealing plate 711 and the receiving groove 712 slide in a limited position, and the sealing plate 711 at the top of the through groove 73 can play a good dust-proofing effect.

[0026] When the present embodiment is used, the human blood stem cell storage box is placed on the extraction rack 9 inside the liquid nitrogen tank 6, and then the extraction rack 9 drives the cell storage box into the liquid nitrogen tank 6, and the tank cover 8 also closes the liquid nitrogen tank 6. The shell cover 1 can be rotatably closed by the rotating member 2, and the shell cover 1 cooperates with the protective shell 3 to protect the liquid nitrogen tank 6. Under the pressure of the shell cover 1, the beveled surface 713 contacts the protective shell 3 and the block 74 will automatically retract into the through groove 73. After the shell cover 1 is fully connected with the protective shell 3, under the elastic action of the spring 72, the block 74 will automatically pop out and plug into the slot 75 to complete the positioning of the shell cover 1. The movable control block 76 drives the block 74 to separate from the slot 75 to open the shell cover 1. The convenient switch also reduces the cost of the device. The sealing plate 711 and the receiving slot 712 are limited and slided, and the sealing plate 711 at the top of the through groove 73 can play a good effect of shielding and preventing dust.

[0027] Example 2

[0028] The difference between this embodiment and embodiment 1 is that the lifting assembly 4 includes a threaded barrel 41, a screw 42, a bevel gear 1 44, a bevel gear 2 45 and a double-axis motor 46, a double-axis motor 46 is arranged at the bottom of the partition 5, and bevel gear 2 45 is connected to both sides of the double-axis motor 46, two screws 42 are embedded in the interior of the partition 5, and the bottom end of the screw 42 is connected to bevel gear 1 44, and the bottom of the tank cover 8 is connected to two threaded barrels 41.

[0029] Specifically, the sides of the bevel gear 1 44 and the bevel gear 2 45 are meshed with each other, and the bevel gear 2 45 is located on the same side as the meshing bevel gear 1 44 .

[0030] By adopting the above technical solution, the dual-axis motor 46 drives the two bevel gears 45 to rotate. Under the meshing transmission between the bevel gear 45 and the bevel gear 1 44, the two screws 42 can rotate synchronously. Under the meshing connection between the screw 42 and the threaded cylinder 41, the two threaded cylinders 41 can drive the tank cover 8 to move downward to a limited position. The extraction rack 9 drives the cell storage box into the liquid nitrogen tank 6. At the same time, the tank cover 8 also completes the closing of the liquid nitrogen tank 6. The smooth lifting and lowering and stable transmission can make the device have a higher taking and placing effect.

[0031] Specifically, a positioning block 43 is sleeved on the surface of the screw rod 42 inside the partition 5 , and the positioning block 43 is in a circular ring structure. A limiting groove 47 is provided on the inner surface of the liquid nitrogen tank 6 .

[0032] By adopting the above technical solution, the positioning block 43 plays a limiting role, which can make the meshing transmission between the bevel gear 2 45 and the bevel gear 1 44 more stable and firm, and the lifting and lowering control effect of the tank cover 8 is better.

[0033] When this embodiment is used, the dual-axis motor 46 is started to drive the two bevel gears 45 to rotate. Under the meshing transmission between the bevel gear 45 and the bevel gear 1 44, the positioning block 43 plays a limiting role. The two screws 42 can rotate synchronously, and under the meshing connection between the screw 42 and the threaded barrel 41, the two threaded barrels 41 can drive the tank cover 8 to move downward. The extraction rack 9 drives the cell storage box into the liquid nitrogen tank 6. At the same time, the tank cover 8 also completes the closing of the liquid nitrogen tank 6. The smooth lifting and lowering and stable transmission can make the device have a higher picking and placing effect. The sliding limit between the extraction rack 9 and the limiting groove 47 can avoid the separation of the threaded barrel 41 and the screw 42.

[0034] The dual-axis motor 46 in the present invention is an existing disclosed technology, and the selected model is YDW.

[0035] The structure and use principle of the shell cover 1, rotating part 2, protective shell 3, liquid nitrogen tank 6, tank cover 8 and extraction rack 9 in the utility model have been disclosed in Chinese patent application No. 202321070246.7, which discloses a human blood stem cell cooling and preservation device. Its working principle is that the cell storage box is placed on the extraction rack 9 in the liquid nitrogen tank 6 for storage, and the tank cover 8 is covered to ensure constant temperature refrigeration storage. The protective shell 3 and the shell cover 1 can play a good protective role on the outside of the liquid nitrogen tank 6.

[0036] Working principle and use process of the utility model: When the utility model is used, the human stem cell storage box is placed on the extraction rack 9 inside the liquid nitrogen tank 6, and then the dual-axis motor 46 is started to drive the two bevel gears 45 to rotate. Under the meshing transmission between the bevel gear 45 and the bevel gear 1 44, the positioning block 43 plays a limiting role. The two screw rods 42 can rotate synchronously, and under the meshing connection between the screw rod 42 and the threaded barrel 41, the two threaded barrels 41 can drive the tank cover 8 to move down, and the extraction rack 9 drives the cell storage box into the liquid nitrogen tank 6. At the same time, the tank cover 8 also completes the closed cover of the liquid nitrogen tank 6. The smooth lifting and stable transmission can make the device have a higher pick-up and place effect, and the extraction rack 9 slides between the limit groove 47 The limit can prevent the threaded barrel 41 from separating from the screw rod 42. The shell cover 1 can be rotatably closed by the rotating member 2. The shell cover 1 and the protective shell 3 can cooperate to protect the liquid nitrogen tank 6. Under the pressure of the shell cover 1, the beveled surface 713 contacts the protective shell 3 and the block 74 will automatically retract into the through groove 73. After the shell cover 1 and the protective shell 3 are fully connected, under the elastic action of the spring 72, the block 74 will automatically pop out and plug into the slot 75 to complete the positioning of the shell cover 1. The moving control block 76 drives the block 74 to separate from the slot 75 to open the shell cover 1. The convenient switch also reduces the cost of the device. The sealing plate 711 and the storage slot 712 are limited and slide, and the sealing plate 711 at the top of the through groove 73 can play a good role in shielding and preventing dust.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A human blood stem cell cooling and storage device, comprising a protective shell, characterized in that: A positioning assembly is provided on the inner top of the protective shell, a rotating part is installed on the top of the protective shell, a shell cover is embedded inside the rotating part, a partition is installed inside the protective shell, a lifting assembly is provided at the bottom of the partition, a liquid nitrogen tank is installed on the top of the partition, a tank cover is provided on the top of the liquid nitrogen tank, and an extraction rack is connected to the bottom of the tank cover; The positioning component includes an auxiliary component, a spring, a through slot, a card block, a card slot and a control block, wherein the inner top of the protective shell is provided with a card slot, the inner part of the shell cover is provided with a through slot, the side of the through slot is connected with the auxiliary component, the inner part of the through slot is embedded with a spring, the side of the spring is connected with the control block, the bottom of the control block is connected with a card block, and the card block and the card slot are in a plug-in structure; The lifting assembly includes a threaded barrel, a screw, bevel gear one, bevel gear two and a double-axis motor, wherein a double-axis motor is arranged at the bottom of the partition, bevel gear two is connected to both sides of the double-axis motor, two screws are embedded inside the partition, bevel gear one is connected to the bottom end of the screw, and two threaded barrels are connected to the bottom of the tank cover.

2. A human blood stem cell cooling and storage device according to claim 1, characterized in that: The auxiliary component includes a sealing plate, a receiving groove and a beveled surface, wherein the side of the through groove is connected to the receiving groove, the surface of the control block is connected to the sealing plate, and the side end of the clamping block is provided with a beveled surface.

3. A human blood stem cell cooling and storage device according to claim 1, characterized in that: The sides of the bevel gear 1 and the bevel gear 2 are meshed with each other, and the bevel gear 2 is located on the same side as the meshing bevel gear 1.

4. The human blood stem cell cooling and storage device according to claim 1, characterized in that: A positioning block is sleeved on the surface of the screw inside the partition, the positioning block is in a circular ring structure, and a limiting groove is arranged on the inner surface of the liquid nitrogen tank.

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