Combined cryopreservation rack
Through the design of a combined freezer shelf, the problem of inconvenience in dumping and removing the frozen storage box in a horizontal refrigerator is solved, and the stable stacking and efficient acquisition of the frozen storage box is achieved.
Patent Information
- Application Number
- CN202422933740.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing frozen storage boxes are easily dumped in horizontal refrigerators and are inconvenient to remove, resulting in confusion in frozen storage boxes and low space utilization.
A combined freezer rack is designed, including a base, splicing layer and lifting layer. Through the combined structure of the shaft and sleeve and an anti-detachment mechanism, the frozen storage box is ensured to be stable stacked and conveniently removed.
It improves the stability and space utilization of the frozen storage box, prevents dumping, simplifies the removal process of the frozen storage box, and improves the convenience of operation.
Smart Images
Figure CN223149028U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of sample cryopreservation, and particularly to a combined cryopreservation rack. Background Art
[0002] Drug clinical trials are an essential step in verifying the effectiveness and safety of new drugs. During the trial process, biological samples (blood, urine, feces, etc.) of the subjects are collected for laboratory testing and analysis to obtain relevant data of the drug. After the biological samples are collected, they are usually centrifuged and sub-packed into plasma in the drug clinical trial center where this study is carried out, and the plasma to be tested is stored in an ultra-low temperature refrigerator (-60~-90°C) in the trial center. According to the progress of the trial, the stored samples are transferred to relevant laboratories or testing companies for testing through the cold chain in stages.
[0003] Generally, small sample volumes are stored in vertical ultra-low temperature refrigerators, and large sample volumes need to be stored in horizontal ultra-low temperature refrigerators. Most of the current cryopreservation racks on the market are of a drawer-type fixed structure, which can be well used for vertical refrigerators. However, the door of the horizontal refrigerator is at the top, so the drawer-type fixed structure is not applicable to horizontal refrigerators. Inside the horizontal refrigerator, usually, the cryopreservation boxes of this group are stacked in layers according to different projects. However, since the cryopreservation boxes are made of plastic, after being stacked to a certain height, due to the lack of a structure for fixing the cryopreservation boxes, the frictional force generated by the contact between the two cryopreservation boxes is small, and there may be a risk of tipping; secondly, because the cryopreservation boxes are stacked layer by layer, when the testing personnel obtain these cryopreservation boxes, they cannot take them out at one time. When taking the cryopreservation box at the bottom, they also need to lean their upper body into the horizontal refrigerator, and at this time, they may accidentally touch the cryopreservation boxes stacked for other projects, causing other cryopreservation boxes to tip over. Summary of the Utility Model
[0004] The technical problem to be solved by this application is to provide a combined cryopreservation rack that can improve the stacking stability of cryopreservation boxes.
[0005] To solve the above technical problem, this application adopts the following technical solutions:
[0006] A combined cryopreservation rack includes a base, a splicing layer, and a lifting layer;
[0007] The base includes a first bottom plate. A pair of first support rods are respectively provided on the left and right sides of the top of the first bottom plate. The top of the first support rods is provided with a first shaft rod arranged longitudinally;
[0008] The splicing layer includes a second bottom plate. First shaft sleeves arranged longitudinally are respectively provided on the left and right sides of the second bottom plate. An opening is longitudinally formed at the bottom of the first shaft sleeve, and the first shaft sleeve is sleeved on the first shaft rod through the opening. A pair of second support rods are respectively provided on the left and right sides of the top of the second bottom plate. The top of the second support rods is provided with a second shaft rod arranged longitudinally;
[0009] The lifting layer includes a top plate. On the left and right sides of the top plate, second bushings arranged longitudinally are respectively provided. An opening is longitudinally formed at the bottom of the second bushing, and the second shaft rod is sleeved through the opening. A lifting handle is provided on the top surface of the top plate.
[0010] The splicing layer is sleeved on the base. The number of splicing layers is increased according to how high the cryopreservation boxes need to be stacked. The design of the base and the splicing layer can improve the stability of the cryopreservation boxes. The lifting layer is sleeved on the topmost splicing layer, so that a whole stack of cryopreservation boxes can be taken out of the horizontal refrigerator at one time without touching other stacked cryopreservation boxes, preventing the cryopreservation boxes from tipping over.
[0011] To prevent the first bushing from disengaging from the first shaft rod, a number of anti-disengagement mechanisms are further included, which are provided at the tops of the first bushing and the second bushing.
[0012] According to further expansion of the above solution, the anti-disengagement mechanism includes an inverted U-shaped groove block. A rectangular through hole is formed in the top surface of the groove block. A limiting block is arranged in the rectangular through hole. A lifting block is provided at the top of the limiting block and a limiting pin is provided at the bottom.
[0013] According to further expansion of the above solution, through holes for the bottom of the limiting pin to pass through are respectively formed at the tops of the first bushing and the second bushing.
[0014] According to further expansion of the above solution, limiting grooves for the limiting pin to extend into are formed on the outer parts of the first shaft rod and the second shaft rod.
[0015] Compared with the prior art, the present application at least achieves the following beneficial effects: A base is laid at the bottom of the bedroom refrigerator for this cryopreservation rack. The cryopreservation boxes are placed on the first bottom plate. When stacking the cryopreservation boxes, the splicing layer is sleeved on the first shaft rod of the base, and a new cryopreservation box is placed on the second bottom plate of the splicing layer. If more new cryopreservation boxes need to be stacked, only a new splicing layer needs to be sleeved on the second shaft rod above the aforementioned splicing layer to place a new cryopreservation box. Stacking upward in this way, the cryopreservation boxes can be stacked relatively high without tipping over. When the splicing layer is stacked to the highest level, the lifting layer is sleeved on the second shaft rod of the highest layer, and a whole stack of cryopreservation boxes can be directly taken out upward from the bedroom refrigerator without touching the cryopreservation boxes stacked in other items, preventing other cryopreservation boxes from tipping over. Description of the Drawings
[0016] Now, one or more embodiments of the present application will be described only by way of example with reference to the accompanying drawings, in which:
[0017] Figure 1 is a three-dimensional display view of the cryopreservation rack according to one embodiment of the present application;
[0018] Figure 2A perspective view of the base of the cryopreservation rack of the present application;
[0019] Figure 3 A perspective view of the splicing layer of the cryopreservation rack of the present application;
[0020] Figure 4 A perspective view of the lifting layer of the cryopreservation rack of the present application;
[0021] Figure 5 is Figure 4 A perspective view of the limit pin on the anti - detachment mechanism on the lifting layer moving upward away from the second bushing;
[0022] Figure 6 is Figure 5 A partial view of area A in
[0023] In the figure, the reference numerals are: 1, base; 11, first bottom plate; 12, first support rod; 13, first shaft rod; 131, first limit groove; 2, splicing layer; 21, second bottom plate; 22, first bushing; 23, second support rod; 24, second shaft rod; 241, second limit groove; 3, lifting layer; 31, top plate; 32, second bushing; 33, lifting handle; 4, retaining piece; 5, anti - detachment mechanism; 51, groove block; 52, limit block; 53, lifting block; 54, limit pin; 55, flange; 56, spring. Detailed implementation manners
[0024] The present application will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood, however, that the present application can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.
[0025] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application.
[0026] In view of the defect that the cryopreservation box may be toppled in a horizontal refrigerator in the prior art. After careful analysis by the inventor, it is found that the main reason for the above problem is that the cryopreservation box is made of transparent plastic material. When stacking, since the sizes of several cryopreservation boxes are the same, it may cause the situation of top-heavy and bottom-light, and the friction between two cryopreservation boxes is small. Therefore, when the gravity of the cryopreservation box is unbalanced or touched by an external force, it may slip or fall; secondly, because the cryopreservation box is taken out of the horizontal refrigerator, sometimes the cryopreservation boxes cannot be taken out all at once. When taking the cryopreservation box at the bottom of the horizontal refrigerator, the tester often needs to bend down and stretch the upper body into the refrigerator. When getting up, parts such as the head or arm may touch other cryopreservation boxes, causing other cryopreservation boxes to also topple. Based on the above analysis, the inventor designed a cryopreservation rack to solve the problem that the cryopreservation box is prone to topple.
[0027] As Figures 1-4 shown, in an embodiment of the combined cryopreservation rack of the present application, the cryopreservation rack includes a base 1, a splicing layer 2 and a lifting layer;
[0028] The base 1 is used to be placed at the bottom of the horizontal refrigerator. The base 1 includes a square first bottom plate 11, and the size of the first bottom plate 11 can be designed to be slightly larger. A pair of cylindrical first support rods 12 are respectively arranged on the left and right sides of the top of the first bottom plate 11. More specifically, as Figure 2 shown, these two pairs of first support rods 12 are respectively arranged at the four corner positions of the top of the first bottom plate 11. A first shaft rod 13 arranged longitudinally is connected to the top of a pair of first support rods 12, and the lengths of the first shaft rods 13 are respectively flush with the front and rear ends of the first bottom plate 11;
[0029] The function of the splicing layer 2 is that for each additional cryopreservation box placed, an additional splicing layer 2 is added on the base 1 upward to increase the stacking height of the cryopreservation boxes. The splicing layer 2 includes a square second bottom plate 21. First shaft sleeves 22 arranged longitudinally are respectively arranged on the left and right sides of the second bottom plate 21. The lengths of the first shaft sleeves 22 are flush with the front and rear ends of the second bottom plate 21. An opening is longitudinally formed at the bottom of the first shaft sleeve 22. Through this opening, it is sleeved on the first shaft rod 13 from front to back. When lifting upward, the inner wall of the opening of the first shaft sleeve 22 will be limited by the outer wall of the first shaft rod 13 to prevent the splicing layer 2 from slipping out of the first shaft rod 13 when moving upward; A pair of second support rods 23 are respectively arranged on the left and right sides of the top of the second bottom plate 21. As Figure 3 shown, these two pairs of second support rods 23 are respectively arranged at the four corner positions of the top of the second bottom plate 21. A second shaft rod 24 arranged longitudinally is arranged at the top of the second support rod 23, and the lengths of the second shaft rods 24 are respectively flush with the front and rear ends of the second bottom plate 21;
[0030] The lifting layer is used to facilitate the inspection personnel to hold the refrigerator with one hand and apply force to take out the whole stack of frozen storage boxes from the inside of the refrigerator. The lifting layer includes a top plate 31. Second shaft sleeves 32 arranged longitudinally are respectively provided on the left and right sides of the top plate 31. An opening is longitudinally formed at the bottom of the second shaft sleeve 32. Through this opening, it is sleeved on the second shaft rod 24 from front to back. When lifting upward, the inner wall of the opening of the second shaft sleeve will be limited by the outer wall of the second shaft rod, preventing the splicing layer 2 from disengaging from the second shaft rod 24 when moving upward; a lifting handle 33 is provided on the top surface of the top plate 31 for the inspection personnel to hold by hand.
[0031] In the past, in order to prevent the frozen storage boxes from being confused, usually at least a spacing of one box body was left between two stacks of frozen storage boxes. After using this frozen storage rack, the stacks of frozen storage boxes will not topple, and several stacks of frozen storage boxes can be stacked adjacent to each other, reducing the spacing between two stacks of frozen storage boxes, improving the space utilization rate of the horizontal refrigerator, as well as the convenience of storing and retrieving the frozen storage boxes.
[0032] In order to prevent the splicing layer 2 from longitudinally displacing from the first shaft rod 13 of the base 1, this frozen storage rack further includes several groups of anti-disengagement mechanisms 5. The anti-disengagement mechanisms 5 are in groups of two, and each group is respectively provided at the tops of the first shaft sleeve 22 and the second shaft sleeve 32.
[0033] As Figures 4-6 shown, the anti-disengagement mechanism 5 includes an inverted U-shaped groove block 51. A rectangular through hole is formed in the top surface of the groove block 51. A movable limit block 52 matching the shape of the rectangular through hole is provided in the rectangular through hole. A cylindrical lifting block 53 is connected to the top of the limit block 52, and a vertical limit pin 54 is connected to the bottom.
[0034] Through holes for the bottom of the limit pin 54 of the anti-disengagement mechanism 5 correspondingly arranged at this position are respectively formed at the tops of the first shaft sleeve 22 and the second shaft sleeve 32. Corresponding limit grooves for the limit pin 54 to extend into are formed on the outer parts of the first shaft rod 13 and the second shaft rod 24. For the sake of distinction, the limit groove on the first shaft rod 13 is called the first limit groove 131, and the limit groove on the second shaft rod 24 is called the second limit groove 241.
[0035] When the limit block 52 on the anti-disengagement mechanism 5 of the splicing layer 2 is located in the rectangular through hole, it indicates that the bottom of the limit pin 54 has passed through the through hole on the first shaft sleeve 22 and is placed in the first limit groove 131 of the first shaft rod 13. Similarly, when the limit block 52 on the anti-disengagement mechanism 5 of the lifting layer 3 is located in the rectangular through hole, it indicates that the bottom of the limit pin 54 has passed through the through hole on the second shaft sleeve 32 and is placed in the second limit groove 241 of the second shaft rod 24. At this time, the frozen storage rack is an integral non-detachable whole.
[0036] To Figure 5 and Figure 6For example, lift the lifting block 53 upward to move the limit block 52 out of the rectangular through-hole, and rotate the lifting block 53 so that the limit block 52 abuts against the top surface of the groove block 51. The bottom of the limit pin 54 leaves the through-hole of the second bushing 32, and the lifting layer can be detached from the splicing layer 2. Similarly, the splicing layer 2 can be detached from the base 1.
[0037] To ensure that the limit pin 54 can be stably located in the first limit groove 131 or the second limit groove 241, a spring 56 is sleeved on the limit pin 54, and a flange 55 is provided on the bottom of the spring 56 and the limit pin 54. The bottom of the spring 56 presses against the flange 55 to push down the limit pin 54 and prevent the limit pin 54 from shaking. When the limit block 52 leaves the rectangular through-hole and contacts the top surface of the groove block 51, the elastic force can also prevent the limit block 52 from rotating.
[0038] The front and rear end faces of the first shaft rod 13 and the second shaft rod 24 are spherical structures; the bottom of the limit pin 54 is a spherical structure. Compared with a planar structure, the end faces of the first shaft rod 13, the second shaft rod 24, and the limit pin 54 being spherical can prevent the first shaft rod 13 or the second shaft rod 24 from pushing against the side of the limit pin 54 when they come into contact, which may cause the limit pin 54 to not move upward and prevent the first shaft rod 13 or the second shaft rod 24 from continuing to move to allow the limit pin 54 to enter the first limit groove 131 or the second limit groove 241.
[0039] Triangular shims 4 are respectively connected to the joints of the first bottom plate 11 and the first support rod 12, and the joints of the second bottom plate 21 and the second support rod 23. The shims 4 have two functions. One is to prevent the cryopreservation box from sliding and falling out of the first bottom plate 11 or the second bottom plate 21. The other is to increase the strength of the joints of the first bottom plate 11 and the first support rod 12, and the joints of the second bottom plate 21 and the second support rod 23.
[0040] Notches are provided at the front ends of the first bottom plate 11 and the second bottom plate 21. When the cryopreservation box is placed on the first bottom plate 11 or the second bottom plate 21, due to the blockage of the shim 4, it may not be possible to directly push the cryopreservation box out of the first bottom plate 11 or the second bottom plate 21. At this time, just push the cryopreservation box from back to front, then pinch the upper and lower surfaces of the cryopreservation box at the notch position and lift it upward to pull the cryopreservation box forward.
[0041] When using this cryopreservation rack, first place a base 1 at the bottom of the horizontal refrigerator, and then place a first cryopreservation box on the first bottom plate 11 of the base 1; when placing the second cryopreservation box, obtain a splicing layer 2 marked as No. 1 and sleeved the first bushing 22 on the first shaft rod 13 of the base 1 from front to back. After the limit pin 54 of the anti-disengagement mechanism 5 on the No. 1 splicing layer 2 is snapped into the first limit groove 131 on the first shaft rod 13, the No. 1 splicing layer 2 is fixedly installed on the base 1; when placing the third cryopreservation box, operate in the same way as the installation of the No. 1 splicing layer 2 on the base 1 as described above, and install the second splicing layer 2 (such as No. 2) on the No. 1 splicing layer 2. In this way, several splicing layers 2 can be installed upward reciprocally; when installing the lifting layer, sleeve the second bushing 32 on the second shaft rod 24 of the topmost splicing layer 2 from front to back. When the limit pin 54 of the anti-disengagement mechanism 5 on the lifting layer is snapped into the second limit groove 241 on the second shaft rod 24, the entire cryopreservation rack is installed. On the top surface of the lifting layer, the identification sticker of this stack of cryopreservation boxes can be pasted.
[0042] Hold the lifting handle 33 of the lifting layer 3, and the whole stack of cryopreservation racks and cryopreservation boxes can be taken out of the horizontal refrigerator.
[0043] This cryopreservation rack prevents the cryopreservation boxes from piling up too high and causing tipping. Secondly, it improves the space utilization rate of the horizontal refrigerator and the convenience of storing and retrieving cryopreservation boxes; the cryopreservation boxes can be taken out all at once without repeatedly opening the refrigerator to retrieve cryopreservation boxes, preventing the over-temperature alarm of the low-temperature refrigerator and meeting the requirements for biological sample storage.
[0044] It should be understood that all the above embodiments are exemplary rather than restrictive. Under the concept of this application, those skilled in the art make various modifications or deformations to the specific embodiments described above, and all should be within the protection scope of this application.
Claims
1. A combined cryopreservation rack, characterized in that, It includes a base, a splicing layer and a lifting layer; The base includes a first bottom plate. On the left and right sides of the top of the first bottom plate, there are respectively a pair of first support rods. At the top of the first support rods, there is a first shaft rod arranged longitudinally; The splicing layer includes a second bottom plate. On the left and right sides of the second bottom plate, there are respectively first bushings arranged longitudinally. At the bottom of the first bushings, there are openings longitudinally formed. Through these openings, they are sleeved on the first shaft rods. On the left and right sides of the top of the second bottom plate, there are respectively a pair of second support rods. At the top of the second support rods, there is a second shaft rod arranged longitudinally; The lifting layer includes a top plate. On the left and right sides of the top plate, there are respectively second bushings arranged longitudinally. At the bottom of the second bushings, there are openings longitudinally formed. Through these openings, they are sleeved on the second shaft rods. On the top surface of the top plate, there is a lifting handle; 2. The cryopreservation rack according to claim 1, wherein, It further includes several groups of anti - detachment mechanisms which are arranged at the tops of the first bushings and the second bushings; 3. The cryopreservation rack according to claim 2, wherein The anti - detachment mechanism includes an inverted U - shaped groove block. On the top surface of the groove block, there is a rectangular through - hole. Inside the rectangular through - hole, there is a limit block. At the top of the limit block, there is a lifting block and at the bottom, there is a limit pin; 4. The cryopreservation rack according to claim 3, wherein, A spring is sleeved on the limit pin. At the bottom of the spring and on the limit pin, there is a flange; 5. The cryopreservation rack according to claim 4, wherein, The tops of the first bushing and the second bushing are respectively provided with through - holes for the bottom of the limit pin to pass through; 6. The cryopreservation rack according to claim 4, wherein, On the outer parts of the first shaft rod and the second shaft rod, there are limit grooves for the limit pin to extend into; 7. The cryopreservation rack according to any one of claims 3 to 6, characterized in that, The front and rear end faces of the first shaft rod and the second shaft rod are both spherical structures; the bottom of the limit pin is a spherical structure; 8. The cryopreservation rack according to claim 7, characterized in that, At the joints of the first bottom plate and the first support rods, and the second bottom plate and the second support rods, there are respectively retaining pieces; 9. The cryopreservation rack according to claim 8, characterized in that, At the front ends of the first bottom plate and the second bottom plate, there are recesses.