A lifting-type biocrystallization device

Abstract

This utility model belongs to the technical field of biological cryopreservation equipment, and in particular to a lifting biological cryopreservation device, including a cryopreservation box for biological cryopreservation. An inner liner is fixedly connected to the inner side of the cryopreservation box, and a refrigeration unit body is fixedly connected to the bottom of the cryopreservation box. An opening is formed at the top of the cryopreservation box and the inner liner, and a cover plate is slidably fitted inside the opening. A lifting mechanism is provided between the cryopreservation box and the cover plate, and a placement rack mechanism is provided at the bottom of the cover plate. This utility model has a reasonable structural design. The lifting mechanism drives the lifting and lowering of the placement rack, eliminating the need to insert arms into the cryopreservation box when retrieving biological test tubes, thus reducing operational difficulty and avoiding the stimulation and harm of low temperatures to the human body. Furthermore, when retrieving biological test tubes from each layer, the partition of that layer can be moved into the sealing ring to seal the cryopreservation box, further reducing the leakage of cold air inside the box, resulting in high reliability.

Description

Technical Field

[0001] This utility model relates to the field of biological freezing equipment technology, and in particular to a lifting biological freezing device. Background Technology

[0002] In biological experiments and medical research, the long-term storage of biological samples (such as cell lines, clinical tissue samples, gene fragments, etc.) requires a low-temperature environment (usually -20℃ to -80℃) to maintain the biological activity of the samples. Currently, most commercially available biological cryopreservation devices have a fixed shelf structure, and their core shortcomings are as follows:

[0003] 1. Inconvenient to retrieve and place: The shelves of traditional freezing devices are fixed to the inner wall of the chamber. When it is necessary to retrieve or place samples located deep inside or at the bottom of the chamber, the operator has to put their arm inside the chamber. This not only easily exposes the body to the low temperature environment and causes discomfort, but may also cause the samples to collide and fall due to the limited operating space, resulting in sample damage.

[0004] 2. Significant loss of cold air: When taking or taking samples, the process of reaching into the chamber with one's arm can disrupt the sealed environment inside the chamber, causing external hot air to enter and internal cold air to be lost rapidly. This not only increases the energy consumption of the refrigeration system but may also cause temperature fluctuations inside the chamber (with a fluctuation range of up to ±3℃), affecting the storage stability of surrounding samples. Therefore, we propose a lifting-type biological cryopreservation device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings by proposing a lifting-type biological cryopreservation device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A lifting-type biological cryopreservation device includes a cryopreservation box for biological cryopreservation. An inner liner is fixedly connected to the inner side of the cryopreservation box, and a refrigeration device body is fixedly connected to the bottom of the cryopreservation box. An opening is formed at the top of the cryopreservation box and the inner liner, and a cover plate is slidably fitted inside the opening. A lifting mechanism is provided between the cryopreservation box and the cover plate, and a placement rack mechanism is provided at the bottom of the cover plate. A controller with a display screen is fixedly connected to the front of the cryopreservation box.

[0008] As a preferred embodiment of this utility model, the placement rack mechanism includes three partitions and twelve support plates. Four of the support plates are fixedly disposed between two adjacent partitions, and the four uppermost support plates are fixedly connected between the uppermost partition and the cover plate.

[0009] As a preferred embodiment of the present invention, the placement rack mechanism further includes a plurality of placement seats fixedly connected to the top of the partition plate. The top of the placement seat is provided with a plurality of placement slots. Biological test tubes are movably placed in the placement slots. An elastic snap-fit ​​component is provided between the biological test tubes and the placement seats. A rubber pad is fixedly sleeved in the placement slots, and the biological test tubes are movably placed in the rubber pads.

[0010] As a preferred embodiment of this utility model, the elastic snap-fit ​​assembly includes two sleeve boxes fixedly connected to the top of the placement seat. A compression spring is fixedly connected to one inner wall of each sleeve box. A sliding plate is fixedly connected to one end of the compression spring. A connecting rod is fixedly connected to one side of the sliding plate. An arc-shaped clamp is fixedly connected to one end of the connecting rod. The biological test tube is movably abutted between the two arc-shaped clamps.

[0011] In a preferred embodiment of this utility model, the lifting mechanism includes two lower plates and two upper plates, which are respectively fixedly connected to both sides of the freezer. A servo motor is fixedly connected to the bottom of the lower plate, and a lifting screw is fixedly connected to the output shaft of the servo motor. A lifting plate is threaded onto the outer side of the lifting screw. Two vertical rods are fixedly connected to the top of the lifting plate, and ear plates are fixedly connected to the top of the vertical rods. The four ear plates are respectively fixedly connected to both sides of the cover plate.

[0012] As a preferred embodiment of this utility model, bearings are fixedly sleeved on both the upper plate and the lower plate, and the lifting screw is fixedly sleeved in the inner ring of the corresponding bearing.

[0013] As a preferred embodiment of this utility model, the top of the upper plate has two through holes, and the four vertical rods are slidably sleeved in the corresponding through holes.

[0014] In a preferred embodiment of this invention, a sealing ring is fixedly fitted inside the opening, and the cover plate is slidably fitted inside the sealing ring, with the sealing ring cooperating with the partition plate.

[0015] In this utility model, a lifting biological freezing device is described. When it is necessary to retrieve or place biological test tubes, the controller can start two servo motors to run synchronously. The two servo motors drive the synchronous rotation of two lifting screws, which in turn drive the lifting of two lifting plates, four vertical rods, four ear plates, and a cover plate. The cover plate drives the lifting of the partitions. When it is necessary to retrieve or place the top biological test tube, the partition of that layer can be raised or lowered into the sealing ring, which can effectively seal the freezing box, reduce the leakage of cold air inside the box, and at the same time move the top biological test tube out of the freezing box, making it easy to retrieve or place the biological test tubes, reducing the difficulty of operation, and avoiding the stimulation and harm of low temperature to the human body. Similarly, when it is necessary to retrieve or place the second biological test tube or the biological test tubes in the bottom three layers, the partition of that layer can be moved into the sealing ring.

[0016] In this utility model, the lifting biological freezing device can buffer and protect the biological test tubes by setting rubber pads, and can elastically clamp and fix the biological test tubes by setting compression springs and arc-shaped clamps. This not only improves the stability of the biological test tubes when they are placed, but also facilitates the disassembly and retrieval of the biological test tubes, thus improving the convenience of use.

[0017] This utility model has a reasonable structural design. The lifting mechanism drives the placement rack to rise and fall, eliminating the need to put arms into the freezer when taking out and placing biological test tubes. This reduces the difficulty of operation and avoids the stimulation and harm to the human body caused by low temperature. In addition, when taking out and placing biological test tubes on each layer, the partition of that layer can be moved into the sealing ring to seal the freezer, further reducing the leakage of cold air inside the freezer and ensuring high reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a lifting-type bio-freezing device proposed in this utility model;

[0019] Figure 2 This is a cross-sectional view of a lifting-type bio-freezing device proposed in this utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0021] Figure 4 This is a cross-sectional view of the placement seat, placement slot, and elastic snap-fit ​​assembly of a lifting bio-freezing device proposed in this utility model.

[0022] In the diagram: 1. Freezer; 2. Controller; 3. Cover; 4. Lifting mechanism; 5. Shelf mechanism; 6. Sealing ring; 7. Opening; 8. Refrigeration unit body; 9. Inner liner; 41. Lifting screw; 42. Vertical rod; 43. Upper plate; 44. Ear plate; 45. Bearing; 46. Servo motor; 47. Lower plate; 48. Lifting plate; 51. Partition; 52. Placement seat; 53. Support plate; 54. Placement slot; 55. Biological test tube; 56. Rubber pad; 57. Arc-shaped clamp; 58. Case; 59. Compression spring; 510. Slide plate; 511. Connecting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4A lifting-type biological freezing device includes a freezing box 1 for biological freezing, an inner liner 9 fixedly connected to the inner side of the freezing box 1, a refrigeration device body 8 fixedly connected to the bottom of the freezing box 1, an opening 7 at the top of the freezing box 1 and the inner liner 9, a cover plate 3 slidably fitted inside the opening 7, a lifting mechanism 4 between the freezing box 1 and the cover plate 3, a placement rack mechanism 5 at the bottom of the cover plate 3, and a controller 2 with a display screen fixedly connected to the front of the freezing box 1.

[0025] Furthermore, refer to Figures 2-4 The placement rack mechanism 5 includes three partitions 51 and twelve support plates 53. Four support plates 53 are fixedly disposed between two adjacent partitions 51, and the top four support plates 53 are fixedly connected between the top partition 51 and the cover plate 3. The placement rack mechanism 5 also includes multiple placement seats 52 fixedly connected to the top of the partitions 51. Multiple placement slots 54 are opened on the top of the placement seats 52. Biological test tubes 55 are movably placed in the placement slots 54. An elastic snap-fit ​​component is provided between the biological test tubes 55 and the placement seats 52. A rubber pad 56 is fixedly fitted inside the placement slot 54. The biological test tube 55 is movably placed inside the rubber pad 56. The elastic snap-fit ​​assembly includes two sleeves 58 fixedly connected to the top of the placement seat 52. A compression spring 59 is fixedly connected to the inner wall of one side of the sleeve 58. A sliding plate 510 is fixedly connected to one end of the compression spring 59. A connecting rod 511 is fixedly connected to one side of the sliding plate 510. An arc-shaped clamp 57 is fixedly connected to one end of the connecting rod 511. The biological test tube 55 is movably abutted between the two arc-shaped clamps 57.

[0026] The above scheme is adopted as follows: the rubber pad 56 can provide cushioning protection for the biological test tube 55; the compression spring 59 and the arc-shaped clamp 57 can provide elastic clamping and fixing for the biological test tube 55, which not only improves the stability of the biological test tube 55 when placed, but also facilitates the disassembly and retrieval of the biological test tube 55, improving the convenience of use; the support plate 53 can provide support and fixation for the partition 51.

[0027] Furthermore, refer to Figures 1-3 The lifting mechanism 4 includes two lower plates 47 and two upper plates 43. The two lower plates 47 and two upper plates 43 are respectively fixedly connected to both sides of the freezer 1. A servo motor 46 is fixedly connected to the bottom of the lower plate 47. A lifting screw 41 is fixedly connected to the output shaft of the servo motor 46. A lifting plate 48 is threaded on the outer side of the lifting screw 41. Two vertical rods 42 are fixedly connected to the top of the lifting plate 48. Ear plates 44 are fixedly connected to the top of the vertical rods 42. The four ear plates 44 are respectively fixedly connected to both sides of the cover plate 3.

[0028] Using the above scheme: When it is necessary to retrieve or place biological test tubes, the controller 2 can start two servo motors 46 to run synchronously. The two servo motors 46 drive the synchronous rotation of two lifting screws 41. The two lifting screws 41 drive the lifting of two lifting plates 48, four vertical rods 42, four ear plates 44 and cover plate 3. Cover plate 3 drives the lifting of partition plate 51. When it is necessary to retrieve or place the top biological test tube 55, the partition plate 51 of this layer can be raised or lowered into the sealing ring 6, which can effectively seal the freezer 1, reduce the leakage of cold air in the freezer, and at the same time move the top biological test tube 55 out of the freezer 1, making it easy to retrieve or place the biological test tube 55, reducing the difficulty of operation and avoiding the stimulation and harm of low temperature to the human body. Similarly, when it is necessary to retrieve or place the second biological test tube 55 or the biological test tubes 55 of the bottom three layers, the partition plate 51 of this layer can be moved into the sealing ring 6.

[0029] Furthermore, bearings 45 are fixedly sleeved on both the upper plate 43 and the lower plate 47, and the lifting screw 41 is fixedly sleeved in the inner ring of the corresponding bearing 45, which can support the lifting screw 41 and make its rotation more stable.

[0030] Furthermore, the top of the upper plate 43 has two through holes, and the four vertical rods 42 are slidably fitted into the corresponding through holes to facilitate the guidance of the vertical rods 42 and make their lifting and lowering more stable.

[0031] Furthermore, a sealing ring 6 is fixedly fitted inside the opening 7, and the cover plate 3 is slidably fitted inside the sealing ring 6. The sealing ring 6 cooperates with the partition plate 51 to improve the sealing effect.

[0032] In this invention, biological test tubes can be frozen through the refrigeration device body 8 during use. The working principle of the refrigeration device body 8 is based on the phase change process of the refrigerant in the system. Heat transfer is achieved through four core links: compression, condensation, throttling and evaporation. The core components include a compressor, condenser, throttling valve and evaporator. During freezing, refrigerants such as ammonia or Freon are generally used to quickly reduce the temperature of the storage environment.

[0033] When it is necessary to retrieve or place biological test tubes, the controller 2 can activate two servo motors 46 to operate synchronously. The two servo motors 46 drive the synchronous rotation of two lifting screws 41, which in turn drive the lifting of two lifting plates 48, four vertical rods 42, four ear plates 44, and the cover plate 3. The cover plate 3 drives the lifting of the partition 51. When it is necessary to retrieve or place the top biological test tube 55, the partition 51 of that layer can be raised or lowered into the sealing ring 6, which can effectively seal the freezer 1, reduce the leakage of cold air inside the freezer, and at the same time move the top biological test tube 55 out of the freezer 1, making it easy to retrieve or place the biological test tube 55, reducing the difficulty of operation and avoiding the stimulation and harm of low temperature to the human body. Similarly, when it is necessary to retrieve or place the second biological test tube 55 or the biological test tubes 55 in the bottom three layers, the partition 51 of that layer can be moved into the sealing ring 6.

[0034] The rubber pad 56 provides cushioning protection for the biological test tube 55, while the compression spring 59 and the arc-shaped clamp 57 provide elastic clamping and fixation for the biological test tube 55. This not only improves the stability of the biological test tube 55 when placed, but also facilitates the disassembly and retrieval of the biological test tube 55, thus improving the convenience of use.

Claims

1. A lift-type biological freezing apparatus characterized by comprising: The device includes a freezer (1) for biological cryopreservation, with an inner liner (9) fixedly connected to the inside of the freezer (1), a refrigeration unit body (8) fixedly connected to the bottom of the freezer (1), an opening (7) at the top of the freezer (1) and the inner liner (9), a cover plate (3) slidingly fitted inside the opening (7), a lifting mechanism (4) between the freezer (1) and the cover plate (3), a placement rack mechanism (5) at the bottom of the cover plate (3), and a controller (2) with a display screen fixedly connected to the front of the freezer (1).

2. A lift-type biological freezing apparatus according to claim 1, wherein The placement rack mechanism (5) includes three partitions (51) and twelve support plates (53). Four of the support plates (53) are fixedly arranged between two adjacent partitions (51), and the four uppermost support plates (53) are fixedly connected between the uppermost partition (51) and the cover plate (3).

3. A lift-type biological freezing apparatus according to claim 2, wherein The placement rack mechanism (5) further includes a plurality of placement seats (52) fixedly connected to the top of the partition (51). The top of the placement seat (52) is provided with a plurality of placement slots (54). Biological test tubes (55) are movably placed in the placement slots (54). An elastic snap-fit ​​component is provided between the biological test tubes (55) and the placement seat (52). A rubber pad (56) is fixedly sleeved in the placement slots (54). The biological test tubes (55) are movably placed in the rubber pads (56).

4. A lifting-type bio-freezing device according to claim 3, characterized in that, The elastic snap-fit ​​assembly includes two sleeves (58) fixedly connected to the top of the placement seat (52). A compression spring (59) is fixedly connected to the inner wall of one side of the sleeve (58). A sliding plate (510) is fixedly connected to one end of the compression spring (59). A connecting rod (511) is fixedly connected to one side of the sliding plate (510). An arc-shaped clamp (57) is fixedly connected to one end of the connecting rod (511). The biological test tube (55) is movably abutted between the two arc-shaped clamps (57).

5. A lifting-type bio-freezing device according to claim 3, characterized in that, The lifting mechanism (4) includes two lower plates (47) and two upper plates (43). The two lower plates (47) and the two upper plates (43) are respectively fixedly connected to both sides of the freezer (1). A servo motor (46) is fixedly connected to the bottom of the lower plate (47). A lifting screw (41) is fixedly connected to the output shaft of the servo motor (46). A lifting plate (48) is threaded on the outer side of the lifting screw (41). Two vertical rods (42) are fixedly connected to the top of the lifting plate (48). Ear plates (44) are fixedly connected to the top of the vertical rods (42). The four ear plates (44) are respectively fixedly connected to both sides of the cover plate (3).

6. A lifting-type bio-freezing device according to claim 5, characterized in that, Bearings (45) are fixedly sleeved on both the upper plate (43) and the lower plate (47), and the lifting screw (41) is fixedly sleeved in the inner ring of the corresponding bearing (45).

7. A lifting-type bio-freezing device according to claim 5, characterized in that, The top of the upper plate (43) has two through holes, and the four vertical rods (42) are slidably sleeved in the corresponding through holes.

8. A lifting-type bio-freezing device according to claim 2, characterized in that, A sealing ring (6) is fixedly fitted inside the opening (7), and the cover plate (3) is slidably fitted inside the sealing ring (6). The sealing ring (6) cooperates with the partition plate (51).

Images