Cryopreservation box moving device applied to deep hypothermia area

Abstract

The utility model relates to a cryopreservation box moving device applied to a deep hypothermia area in the field of biological sample cryopreservation, which comprises a deep hypothermia storage tank, a support plate, a fixed seat and a material taking plate, the support plate, the fixed seat and the material taking plate are mounted in the deep hypothermia storage tank, a cryopreservation box is arranged on the material taking plate, and a threaded sleeve is mounted at the bottom of the material taking plate. A fixing frame and a motor are arranged on the outer wall of the storage tank, the motor is positioned and inserted into the fixing frame through a positioning block, the output end of the motor is in driving connection with a driving shaft, and the driving shaft and the rotating shaft are quickly connected and separated through a limiting sleeve and a spring. The rotating shaft penetrates through the storage tank, and the threaded groove is in threaded sleeve connection with the threaded sleeve to drive the material taking plate and the cryopreservation box to move. Through the external motor and a replaceable structure, the use of a profound hypothermia special motor is avoided, the cost is reduced, meanwhile, the quick disassembly and assembly of the motor and the convenient replacement of the rotating shaft are realized, the maintainability of the equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cryopreservation of biological samples, specifically to a mobile device for cryopreservation boxes used in deep cryogenic zones. Background Technology

[0002] This utility model patent relates to the field of cryogenic storage equipment, specifically focusing on the movement and operation technology of cryopreservation boxes in deep cryogenic environments. In the fields of biomedicine, scientific research experiments, and biological sample preservation, deep cryogenic storage tanks are widely used for long-term preservation of biological samples, cells, tissues, etc., and the convenient movement and operation of cryopreservation boxes as sample carriers in deep cryogenic environments is particularly important.

[0003] In existing technologies, cryogenic storage container moving devices within cryogenic storage tanks often face numerous challenges. On the one hand, due to the unique characteristics of the cryogenic environment, traditional motors are difficult to apply directly to such devices, typically requiring expensive cryogenic-specific motors, which undoubtedly increases equipment costs. On the other hand, the motors and drive components of existing devices are often complexly designed and difficult to disassemble and assemble quickly, which not only inconveniences motor replacement or maintenance but also increases equipment downtime and maintenance costs. Furthermore, critical components such as shafts are prone to wear during long-term use, and existing structures often fail to allow for quick replacement, further impacting the equipment's lifespan and reliability. Therefore, developing a cryogenic storage container moving device that is simple in structure, easy to maintain, and low in cost is particularly urgent. Thus, those skilled in the art provide a cryogenic storage container moving device for cryogenic environments to address the problems mentioned in the background. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings and provide a moving device for cryogenic storage boxes in deep cryogenic zones. By using an external motor and a replaceable structure, it solves the technical problems of increased equipment cost and cumbersome operation during maintenance of motors and drive components caused by the use of dedicated deep cryogenic motors in the prior art.

[0005] The objective of this utility model is achieved through the following means:

[0006] A cryogenic storage box moving device for use in deep cryogenic zones includes a deep cryogenic storage tank. A support plate is installed inside the deep cryogenic storage tank, and a fixed base is installed on the support plate. A material-retrieving plate is positioned above the fixed base, and a cryogenic box is mounted on the material-retrieving plate. A threaded sleeve is installed at the bottom of the material-retrieving plate. A fixing frame is installed on the outer wall of the deep cryogenic storage tank, and a positioning hole is formed on the fixing frame. A motor is mounted on the upper side of the fixing frame, and a positioning block is installed on the bottom side of the motor. A drive shaft is driven by the motor at its output end towards the deep cryogenic storage tank. A first limiting strip is installed on the drive shaft. A rotating shaft is located on the side of the drive shaft away from the motor. A threaded groove is formed at the end of the rotating shaft inside the deep cryogenic storage tank. A second limiting strip is installed at the end of the rotating shaft facing the drive shaft. A limiting sleeve is fitted onto the end of the rotating shaft with the second limiting strip, and a limiting groove is formed inside the limiting sleeve. A spring is installed at the end of the limiting sleeve facing the deep cryogenic storage tank.

[0007] Furthermore, the motor is positioned and inserted into the positioning hole on the fixing frame via a positioning block.

[0008] Furthermore, one end of the limiting sleeve is connected to the second limiting strip on the rotating shaft, and the other end of the limiting sleeve is connected to the first limiting strip on the drive shaft. The spring is a reset spring, with one end connected to the outer wall of the cryogenic storage tank and the other end connected to the end of the limiting sleeve.

[0009] Furthermore, the threaded sleeve is slidably inserted into the groove on the fixed base, and the rotating shaft passes through the cryogenic storage tank and the fixed base in sequence. The threaded groove on the rotating shaft is threadedly engaged with the threaded sleeve at the bottom of the picking plate, pressing the limiting sleeve toward the side of the cryogenic storage tank. Then, the motor is positioned by inserting it into the positioning hole on the fixed frame through the positioning block. Next, the limiting sleeve is released, and the limiting sleeve is engaged with the drive shaft under the spring's rebound. At this time, the drive shaft and the rotating shaft form a complete drive assembly, thereby causing the rotating shaft to rotate and drive the picking plate to move, which in turn drives the cryogenic storage box to move.

[0010] The beneficial effects of this invention are as follows: By placing the motor outside the cryogenic storage tank, the special performance requirements of the cryogenic environment on the motor are avoided, allowing ordinary motors to meet the needs and effectively reducing equipment costs. Simultaneously, the motor and mounting bracket are positioned using a positioning block and positioning hole insertion method, combined with a limiting sleeve and spring limiting structure, enabling quick assembly and disassembly of the motor, facilitating motor replacement or maintenance, and improving equipment maintainability. Furthermore, the shaft and cryogenic storage tank are connected by a rotating sleeve, and the shaft is threaded to the threaded sleeve via a threaded groove. When the shaft wears, it can be disengaged from the threaded sleeve by rotating the shaft, allowing for shaft removal and replacement, further enhancing the maintainability and service life of the equipment. Attached Figure Description

[0011] Figure 1This is a three-dimensional structural diagram of a cryopreservation box moving device applied in a deep low temperature zone according to the present invention;

[0012] Figure 2 This is a schematic diagram of the support plate in a cryogenic container moving device applied in the deep low temperature zone according to this utility model;

[0013] Figure 3 This is a partial exploded view of the structure of a cryopreservation box moving device applied in the deep low temperature zone according to this utility model;

[0014] In the diagram: 1. Cryogenic storage tank; 2. Fixing frame; 201. Positioning hole; 3. Motor; 301. Positioning block; 4. Drive shaft; 401. First limiting strip; 5. Rotating shaft; 501. Second limiting strip; 502. Threaded groove; 6. Limiting sleeve; 601. Limiting groove; 7. Spring; 8. Support plate; 9. Fixing seat; 901. Slide groove; 10. Material picking plate; 11. Threaded sleeve; 12. Cryogenic storage box. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] In this embodiment, refer to Figures 1-3 The specific implementation of a cryogenic storage box moving device for use in deep cryogenic zones includes a deep cryogenic storage tank 1. A support plate 8 is installed inside the deep cryogenic storage tank 1. A fixed base 9 is installed on the support plate 8. A material-receiving plate 10 is arranged above the fixed base 9. A cryogenic box 12 is arranged on the material-receiving plate 10. A threaded sleeve 11 is installed at the bottom of the material-receiving plate 10. A fixing frame 2 is installed on the outer wall of the deep cryogenic storage tank 1. The fixing frame 2 has positioning holes 201. A motor 3 is arranged on the upper side of the fixing frame 2. A positioning block 301 is installed on the bottom side of the motor 3. The output end of the motor 3 facing the cryogenic storage tank 1 is connected to a drive shaft 4. A first limiting strip 401 is installed on the drive shaft 4. A rotating shaft 5 is provided on the side of the drive shaft 4 away from the motor 3. A threaded groove 502 is opened at one end of the rotating shaft 5 inside the cryogenic storage tank 1. A second limiting strip 501 is installed at the end of the rotating shaft 5 facing the drive shaft 4. A limiting sleeve 6 is fitted on the end of the rotating shaft 5 with the second limiting strip 501. A limiting groove 601 is opened in the limiting sleeve 6. A spring 7 is installed at the end of the limiting sleeve 6 facing the cryogenic storage tank 1.

[0017] The motor 3 is positioned and inserted into the positioning hole 201 on the fixed frame 2 via the positioning block 301. One end of the limiting sleeve 6 is positioned and inserted into the second limiting strip 501 on the rotating shaft 5, and the other end of the limiting sleeve 6 is positioned and inserted into the first limiting strip 401 on the drive shaft 4. The spring 7 is a return spring. One end of the spring 7 is connected to the outer wall of the cryogenic storage tank 1, and the other end of the spring 7 is connected to the end of the limiting sleeve 6. The threaded sleeve 11 is slidably inserted into the sliding groove 901 on the fixed seat 9. The rotating shaft 5 passes through the cryogenic storage tank 1 and the fixed seat 9 in sequence. The threaded groove 502 on the rotating shaft 5 is threaded and inserted into the threaded sleeve 11 at the bottom of the picking plate 10. The limiting sleeve is pressed towards the side of the cryogenic storage tank. Then the motor is positioned and inserted into the positioning hole on the fixed frame via the positioning block. Then the limiting sleeve is released. Under the spring's rebound, the limiting sleeve is positioned and inserted into the drive shaft. At this time, the drive shaft and the rotating shaft form a complete drive assembly, so that the rotating shaft rotates and drives the picking plate to move, and then drives the cryogenic storage box to move.

[0018] The working principle of this device is as follows: A support plate is installed inside the deep cryogenic storage tank, a fixed seat is installed on the support plate, a sliding groove is opened on the fixed seat, a material picking plate is set above the sliding groove, a threaded sleeve installed at the bottom of the material picking plate is slidably inserted into the sliding groove, and a cryogenic box is set on the material picking plate.

[0019] A mounting bracket is installed on the outer wall of a cryogenic storage tank. The mounting bracket has positioning holes and a motor is mounted on it. A positioning block at the bottom of the motor is inserted into the positioning holes for positioning. The motor is driven by a drive shaft connected to the output end of the cryogenic storage tank. A first limiting strip is installed laterally on the drive shaft. A rotating shaft is located on the side of the drive shaft away from the motor. The rotating shaft is rotatably sleeved with the wall of the cryogenic storage tank. A second limiting strip is installed laterally on the end of the rotating shaft facing the drive shaft. A threaded groove is opened on the outer wall of the end of the rotating shaft inside the cryogenic storage tank. The threaded end of the rotating shaft is rotatably sleeved with a mounting base and threadedly sleeved with the threaded sleeve. A spring is connected to the outer wall of the cryogenic storage tank. The spring is sleeved with the rotating shaft. A limiting sleeve is connected to the end of the spring away from the cryogenic storage tank. A limiting groove is opened in the limiting sleeve. The limiting sleeve is slidably sleeved with the end of the rotating shaft with the second limiting strip.

[0020] When the motor needs to drive the rotating shaft to adjust the position of the cryopreservation box, first press the limiting sleeve toward the side of the deep cryogenic storage tank, then insert the motor into the positioning hole on the fixing frame through the positioning block for positioning, then release the limiting sleeve, and the limiting sleeve will be engaged with the driving shaft under the spring's rebound. At this time, the driving shaft and the rotating shaft form a complete driving assembly, which causes the rotating shaft to rotate and drive the material picking plate to move, thereby driving the cryopreservation box to move.

[0021] In this structure, since the motor is located outside the cryogenic storage tank, a regular motor can be used to replace the cryogenic motor, saving equipment costs. The motor and the fixed bracket are positioned by docking with positioning blocks and positioning holes. After the limiting sleeve is squeezed out of the drive shaft, the motor can be disassembled and installed, which facilitates the replacement or maintenance of the motor. The rotating shaft is slidably sleeved with the cryogenic storage tank. After the rotating shaft wears, it can be rotated to disengage from the threaded sleeve, thereby removing and replacing the rotating shaft.

[0022] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A cryobox moving device applied to a deep low temperature area, comprising a deep low temperature storage tank (1), characterized in that: The cryogenic storage tank (1) is equipped with a support plate (8) inside, a fixed seat (9) is installed on the support plate (8), a material receiving plate (10) is set above the fixed seat (9), a cryogenic box (12) is set on the material receiving plate (10), and a threaded sleeve (11) is installed at the bottom of the material receiving plate (10). A fixed frame (2) is installed on the outer wall of the cryogenic storage tank (1), a positioning hole (201) is opened on the fixed frame (2), a motor (3) is set on the upper side of the fixed frame (2), a positioning block (301) is installed on the bottom side of the motor (3), and the motor (3) drives the output end of the cryogenic storage tank (1) towards the deep cryogenic storage tank (1). A drive shaft (4) is connected to the drive shaft (4), and a first limiting strip (401) is installed on the drive shaft (4). A rotating shaft (5) is provided on the side of the drive shaft (4) away from the motor (3). A threaded groove (502) is opened at one end of the rotating shaft (5) inside the cryogenic storage tank (1). A second limiting strip (501) is installed at the end of the rotating shaft (5) facing the drive shaft (4). A limiting sleeve (6) is fitted on the end of the rotating shaft (5) with the second limiting strip (501). A limiting groove (601) is opened in the limiting sleeve (6). A spring (7) is installed at the end of the limiting sleeve (6) facing the cryogenic storage tank (1).

2. The cryopreservation box moving device applied to the deep low temperature area according to claim 1, characterized in that: The motor (3) is positioned and inserted into the positioning hole (201) on the fixing frame (2) through the positioning block (301).

3. The device for moving a cryogenic storage box according to claim 1, wherein: One end of the limiting sleeve (6) is connected to the second limiting strip (501) on the rotating shaft (5), and the other end of the limiting sleeve (6) is connected to the first limiting strip (401) on the drive shaft (4).

4. The cryopreservation box moving device applied to the deep low temperature area according to claim 1, characterized in that: The spring (7) is a reset spring. One end of the spring (7) is connected to the outer wall of the cryogenic storage tank (1), and the other end of the spring (7) is connected to the end of the limiting sleeve (6).

5. The cryopreservation box moving device for use in the deep low temperature zone according to claim 1, characterized in that: The threaded sleeve (11) is slidably inserted into the groove (901) on the fixed seat (9).

6. The cryo-cassette moving device according to claim 1, wherein: The rotating shaft (5) passes through the deep cryogenic storage tank (1) and the fixed base (9) in sequence, and the threaded groove (502) on the rotating shaft (5) is threadedly connected to the threaded sleeve (11) at the bottom of the material taking plate (10).

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