Ultra-low temperature medical freezer

Abstract

This invention discloses an ultra-low temperature medical freezer, comprising a cabinet body. Multiple placement openings are vertically arranged side-by-side on the front side of the cabinet body, with drawers correspondingly placed inside each opening. Both inner walls of the placement openings are provided with protruding strips, and both sides of the drawers are provided with grooves corresponding to the protruding strips. This invention allows multiple drawers to be simultaneously pulled out from multiple placement openings. The top drawer blocks the bottom drawer. When a sliding plate is moved out from the rear side of the drawer through a slot, the drawer uses a square rod to limit its movement. During the pushing process, the square rod presses on an elastic sheet, causing it to deform. When the multiple square rods are parallel and can no longer press the elastic sheet, the drawer can no longer be pulled out from the placement openings. At this point, the drawer opening opens, facilitating the removal of medical components from the bottom drawer, thus improving the efficiency of retrieving medical components from multiple drawers.

Description

Technical Field

[0001] This invention belongs to the field of freezer technology, and specifically relates to ultra-low temperature medical freezers. Background Technology

[0002] With the continuous development of medical technology, medical facilities such as hospitals, pharmacies, and epidemic prevention stations are using medical refrigerators to store vaccines or medicines that require low-temperature storage. Medical refrigerators can keep these items at a low storage temperature, thus allowing them to be effectively preserved for a long time.

[0003] Currently, medical refrigerators used in medical facilities generally consist of a cabinet, drawers, and doors. The cabinet contains open storage spaces, the doors can be opened or closed, and the drawers can be pulled out or pushed in through the openings in the cabinet for users to access vaccines or medications. When pulling out drawers, to facilitate access to vaccines or medications, the drawers are usually pulled out completely. However, the top drawer often obstructs the bottom drawer, making it difficult to retrieve medical supplies from the bottom drawer.

[0004] Therefore, it is necessary to invent an ultra-low temperature medical freezer to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an ultra-low temperature medical freezer to solve the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an ultra-low temperature medical refrigerator, comprising a cabinet body, a cabinet door connected to one side of the front side of the cabinet body by a hinge, multiple placement openings arranged vertically side by side on the front side of the cabinet body, drawers corresponding to the placement openings, protruding strips on both inner side walls of the placement openings, and grooves corresponding to the protruding strips on both sides of the drawers, the multiple drawers being placed one-to-one inside the multiple placement openings of the cabinet body, with the rear side of the drawers aligned with the placement openings, and the grooves on both sides of the drawers corresponding to the protruding strips, facilitating the pushing of the drawers into the placement openings of the cabinet body. Each drawer has an opening on both sides, and a protective structure for protecting medical components inside the drawer is provided at the opening position. The protective structure includes a insert plate, the rear end of which corresponds to a slot penetrating the rear side of the drawer. A limiting structure for limiting the insert plate is provided on both sides of the placement openings on the front side of the cabinet body. An indentation corresponding to the limiting structure is provided on the inner side of the cabinet door, and the limiting structure includes a rod located inside the side of the cabinet body. The drawers are placed inside the placement openings, and the medical components are placed inside the drawers. The protective structure's insert prevents the medical components from directly contacting the inner wall of the cabinet's placement opening when they are placed inside the drawers, thus avoiding collision damage caused by the medical components during placement.

[0007] Furthermore, the insert plate of the protective structure is located at the top of the groove, and both sides of the drawer are provided with side grooves corresponding to the insert plate. The side grooves correspond to the slots, and the height of the insert plate is less than the height of the opening. The front end of the insert plate is flush with the front side of the drawer. An inner strip is attached to the inner side of the insert plate, and the front side of the inner strip is attached to the front side of the drawer. A suitable insert plate is selected according to the size of the drawer's side grooves and slots. After the insert plate is placed inside the side grooves on both sides of the drawer, the inner end of the insert plate is inserted into the slot. After the front end of the insert plate is flush with the front side of the drawer, the inner strip is attached to the inner side of the insert plate. The inner strip and the front side of the drawer are fitted together to prevent the insert plate from moving forward and exiting from the front side of the drawer. When the insert plate gradually moves out from the rear side of the drawer through the slot, the inner strip prevents the insert plate from separating from the drawer.

[0008] The drawer has baffles at the top of the openings on both sides. The baffles are located at the top of the slots, and the bottom of the outer side of the baffles corresponds to and fits against the top of the inner side of the insert. Medical components that are higher than the top of the drawer are placed inside the drawer. The baffles confine the medical components, preventing them from colliding with the inner walls of the placement openings through the openings on both sides of the drawer during drawer movement.

[0009] Furthermore, the inner side of the insert plate is provided with a vertical groove, through which multiple parallel square and round rods are inserted. A nut is screwed onto the top of each square and round rod, with the bottom surface of the nut fitting against the top surface of the insert plate. A low-temperature resistant elastic sheet is connected to the bottom of each square and round rod, and the insert plate and the elastic sheet cooperate to seal the drawer opening. After the two insert plates are inserted into the side grooves on both sides of the drawer, a suitable square and round rod is selected based on the relative distance between the bottom surface of the insert plate and the inner top surface of the drawer. The elastic sheet, connected to multiple square and round rods, is then inserted into the inner side of the insert plate through the vertical groove until the bottom surface of the elastic sheet fits against the inner bottom surface of the drawer. A nut is screwed onto the top of each square and round rod, and the nut, in cooperation with the drawer, prevents the square and round rods from pressing against the top of the elastic sheet.

[0010] At the same time, multiple drawers are pulled out from multiple placement openings. The top drawer will block the bottom drawer. When the insert plate is moved out from the back side of the drawer through the slot, the drawer uses the square rod to limit it. During the pushing process, the square rod applies pressure to the elastic plate. The elastic plate deforms under the pressure until multiple square rods are parallel and can no longer press the elastic plate. At this time, the drawer can no longer be pulled out from the placement opening. At this time, the drawer opening is opened, making it convenient to take out the medical parts inside the bottom drawer through the drawer opening.

[0011] Furthermore, the limiting structure's insert rod and insert plate are configured in a one-to-one correspondence, with the center line of the insert rod and the center line of the insert plate on the same horizontal plane. An oval inner groove is provided inside the cabinet side. An inner plate is fixedly connected to the rear end of the insert rod, and the top and bottom of the front side of the inner plate are connected to the inside of the cabinet side using springs. The inner plate is oval in shape, and the insert rod drives the inner plate to slide in conjunction with the inner groove. The spring force is greater than the elastic force of the elastic sheet. During the process of pulling out the drawer, the limiting structure is pulled, causing the drawer and the limiting structure to move synchronously. As the insert rod moves, the inner plate applies pressure to the spring until the internal parts of the drawer are removed. Then, the drawer and the limiting structure are released, and the spring force causes the insert rod to retract into the cabinet. The spring force also acts on the front side of the drawer through the limiting structure of the insert rod, facilitating the drawer's return to its original position and improving the drawer's rapid recovery.

[0012] Furthermore, a rotating frame is vertically inserted into the front end of the insertion rod. The rotating frame includes a rotating rod, with rotating plates fixedly connected to both the top and bottom ends of the rotating rod. The rotating plates are connected to the front end of the insertion rod via torsion springs, and the torsion springs are sleeved on the surface of the rotating rod. The ends of the two rotating plates away from the insertion rod are fixedly connected by a round rod. An arc-shaped plate is fixedly connected to the front end of the insertion plate, with the concave surface of the arc-shaped plate corresponding to the drawer. The round rod of the rotating frame also corresponds to the arc-shaped plate. When medical components need to be removed from the drawer opening, the drawer is pulled. As the front side of the drawer moves out of the placement opening, it contacts the rotating plate of the rotating frame. The drawer pushes the rotating plate to rotate. During the rotation of the rotating plate, the rotating rod rotates, and the torsion spring is also twisted. As the rotating plate rotates, the round rod connected to the rotating plate gradually engages with the arc-shaped plate at the front end of the insertion plate, using the concave surface of the arc-shaped plate to prevent the round rod from continuing to rotate.

[0013] Continue pulling out the drawer. Because the spring force is greater than the elastic force of the elastic plate, the spring force causes the rotating bracket connected to the front end of the insert rod to directly restrict the movement of the insert plate. At this time, the insert plate and the drawer move out of alignment. The front side of the drawer gradually moves away from the front end of the insert plate. Using the movement of the drawer and the restriction of the insert plate, multiple square and round rods press the elastic plate, and the drawer opening opens. At this time, the medical parts inside the drawer can be taken out through the drawer opening.

[0014] Furthermore, a ring frame is fixedly connected to the end of the rotating plate away from the round rod. Threaded rods are inserted into the two ring frames, and threaded sleeves that define the threaded rods are screwed onto the top and bottom of the threaded rods. The threaded rods are connected to the inner sidewall of the ring frames using low-temperature resistant rubber strips. The front end of the inserted rod has an outer groove corresponding to the threaded rod, and the front side of the outer groove is set as an inclined surface. The rotating frame rotates by the threaded rod contacting the inclined surface of the outer groove.

[0015] When the drawer is moved out, the rotating frame rotates, causing the rotating plate to rotate synchronously with the ring frame. At this time, the threaded rod on the inner side of the ring frame contacts the outer groove. The rotation of the ring frame causes the threaded rod to move inside the ring frame. During the movement, the threaded rod squeezes the rubber strip until it contacts the rear side of the outer groove. The rear side of the outer groove then limits the threaded rod, preventing the ring frame from rotating further. At this time, the round rod of the rotating frame and the arc plate engage with a latch, making it easy to open the drawer opening during the drawer's removal process.

[0016] After moving the drawer and the insert rod simultaneously, release the tension on the insert rod. The spring force causes the round rod of the rotating bracket to pull the insert plate into the placement opening. The elastic plate's tension limits the insertion plate from shifting into the drawer. The spring and elastic plate make it easy to push the drawer back into the placement opening.

[0017] Before pulling out the drawer, press the round rod of the rotating bracket to rotate it inwards into the placement opening. The threaded rod of the ring frame contacts the inclined surface of the outer groove. The inclined surface allows the threaded rod to move freely and parallel inside the ring frame. During the rotation, the round rod of the rotating bracket does not engage with the curved plate. Continue until the round rod of the rotating bracket enters the placement opening. Pull out the drawer. The drawer moves synchronously with the insert plate under the action of the elastic plate. After the drawer is pulled out to the appropriate position, release the pressure on the round rod. The elasticity of the torsion spring and the rubber strip causes the threaded rod to move back on the inclined surface, causing the rotating bracket to rotate in the opposite direction. This makes the round rod of the rotating bracket fit tightly against the outer side of the insert plate. The elasticity of the torsion spring and the rubber strip allows the rotating bracket to clamp the drawer, keeping the drawer in a restrained state, making it easy to continuously remove medical parts from the top of the drawer. After taking out the medical parts, simply push the drawer back. The round rod of the rotating bracket will slide on the outer surface of the insert until the drawer is fully inserted into the placement opening. Then, the elasticity of the torsion spring and the rubber strip will cause the rotating bracket to return to its original shape, making it convenient for the next use of the drawer.

[0018] The technical effects and advantages of this invention are as follows:

[0019] 1. This invention allows multiple drawers to be pulled out simultaneously from multiple placement openings. The top drawer blocks the bottom drawer. When the insert plate is moved out from the back side of the drawer through the slot, the drawer uses the square rod to limit it. During the pushing process, the square rod applies pressure to the elastic sheet. The elastic sheet deforms under the pressure until multiple square rods are parallel and can no longer press the elastic sheet. At this point, the drawer can no longer be pulled out from the placement opening. The drawer opening is then open, making it easy to take out the medical components inside the bottom drawer through the drawer opening, thus improving the efficiency of taking out medical components from multiple drawers.

[0020] 2. This invention involves pulling the limiting structure during the drawer extraction process, causing the drawer and the limiting structure to move synchronously. As the limiting structure moves, the inner plate applies pressure to the spring until the internal components of the drawer are removed. Then, the drawer and the limiting structure are released, and the spring force causes the insert to retract into the cabinet. The spring force also acts on the front side of the drawer through the limiting structure of the insert, making it easy to push the drawer back to the placement opening and improving the drawer's rapid recovery.

[0021] 3. This invention involves pressing the round rod of the rotating frame until it enters the placement opening. After pulling the drawer out to the appropriate position, releasing the pressure on the round rod causes the torsion spring and the rubber strip to move the threaded rod back on the inclined plane, resulting in the rotating frame rotating in the opposite direction. This ensures that the round rod of the rotating frame fits tightly against the outer side of the insert plate, keeping the drawer in a confined state. This facilitates the continuous removal of medical components from the top of the drawer, preventing the drawer from automatically retracting into the placement opening during the process of retrieving medical components, thus increasing the efficiency of retrieving medical components. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the ultra-low temperature medical freezer according to an embodiment of the present invention;

[0023] Figure 2 This is an exploded view of the overall structure of the drawer according to an embodiment of the present invention;

[0024] Figure 3 This is a perspective sectional view of the interior of a single placement opening of the cabinet in an embodiment of the present invention;

[0025] Figure 4 This is an embodiment of the present invention. Figure 3 Enlarged view of section A in the diagram;

[0026] In the diagram: 1. Cabinet body; 2. Placement opening; 3. Drawer; 4. Raised strip; 5. Groove; 6. Through opening; 7. Insert plate; 8. Slot; 9. Insert rod; 10. Inner strip; 11. Vertical groove; 12. Square and round rod; 13. Elastic sheet; 14. Spring; 15. Rotating rod; 16. Rotating plate; 17. Round rod; 18. Curved plate; 19. Ring frame; 20. Threaded rod; 21. Rubber strip; 22. Outer groove; 23. Bevel. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0028] This invention provides an ultra-low temperature medical freezer, such as... Figure 1 and Figure 2As shown, the cabinet includes a cabinet body 1. A cabinet door is connected to one side of the front side of the cabinet body 1 by a hinge. Multiple placement openings 2 are arranged vertically side by side on the front side of the cabinet body 1. Drawers 3 are placed inside the placement openings 2. Both inner walls of the placement openings 2 are provided with protruding strips 4. Both sides of the drawers 3 are provided with grooves 5 that correspond to the protruding strips 4. Both sides of the drawers 3 are provided with openings 6. A protective structure for protecting the medical components inside the drawers 3 is provided at the openings 6. The protective structure includes a plate 7. The rear end of the plate 7 corresponds to a slot 8 that penetrates the rear side of the drawer 3. Both sides of the placement openings 2 on the front side of the cabinet body 1 are provided with limiting structures for limiting the plate 7. The inner side of the cabinet door is provided with an indentation corresponding to the limiting structure. The limiting structure includes a rod 9, which is located inside the side of the cabinet body 1.

[0029] like Figure 2 As shown, the insert plate 7 of the protective structure is located at the top of the groove 5, and both sides of the drawer 3 are provided with side grooves corresponding to the insert plate 7. The side grooves correspond to the positions of the slots 8, and the height of the insert plate 7 is less than the height of the opening 6. The front end of the insert plate 7 is flush with the front side of the drawer 3. An inner strip 10 is attached to the inner side of the insert plate 7, and the front side of the inner strip 10 is attached to the inner front side of the drawer 3. A baffle is provided at the top of the opening 6 on both sides of the drawer 3. The baffle is located at the top of the slot 8, and the bottom of the outer side of the baffle is attached to the top of the inner side of the insert plate 7.

[0030] like Figure 2 and Figure 3 As shown, a vertical groove 11 is provided on the inner side of the insert plate 7. A plurality of square and round rods 12 arranged in parallel are passed through the vertical groove 11. The top of the square and round rods 12 is screwed with a nut, and the bottom surface of the nut is in contact with the top surface of the insert plate 7. The bottom of the square and round rods 12 is connected to a low-temperature resistant elastic sheet 13. The insert plate 7 and the elastic sheet 13 cooperate to block the opening 6 of the drawer 3.

[0031] like Figure 3 and Figure 4 As shown, the insertion rod 9 and the insertion plate 7 of the defined structure are arranged in a one-to-one correspondence, and the center line of the insertion rod 9 and the center line of the insertion plate 7 are on the same horizontal plane. An oval inner groove is provided inside the side of the cabinet 1. The rear end of the insertion rod 9 is fixedly connected to the inner plate, and the top and bottom of the front side of the inner plate are connected to the inside of the side of the cabinet 1 by springs 14. The inner plate is oval in shape, and the insertion rod 9 drives the inner plate to slide and cooperate with the inner groove.

[0032] like Figure 4As shown, a rotating frame is vertically inserted into the front end of the insertion rod 9. The rotating frame includes a rotating rod 15. The top and bottom ends of the rotating rod 15 are fixedly connected to rotating plates 16. The rotating plates 16 are connected to the front end of the insertion rod 9 by a torsion spring, and the torsion spring is sleeved on the surface of the rotating rod 15. The ends of the two rotating plates 16 away from the insertion rod 9 are fixedly connected by a round rod 17. An arc-shaped plate 18 is fixedly connected to the front end of the insertion plate 7. The concave surface of the arc-shaped plate 18 corresponds to the drawer 3, and the round rod 17 of the rotating frame corresponds to the arc-shaped plate 18.

[0033] like Figure 4 As shown, a ring frame 19 is fixedly connected to the end of the rotating plate 16 away from the round rod 7. Threaded rods 20 are inserted into the two ring frames 19, and threaded sleeves that define the threaded rods 20 are screwed onto the top and bottom of the threaded rods 20. The threaded rods 20 are connected to the inner sidewall of the ring frames 19 by a low-temperature resistant rubber strip 21. The front end of the inserted rod 9 is provided with an outer groove 22 corresponding to the threaded rod 20. The front side of the outer groove 22 is set as an inclined surface 23, and the rotation of the rotating frame utilizes the threaded rod 20 to make corresponding contact with the inclined surface 23 of the outer groove 22.

[0034] Working principle of this invention:

[0035] Refer to the attached diagram in the instruction manual. Figures 1 to 4 Align the rear side of drawer 3 with the position of the placement opening 2, and ensure that the grooves 5 on both sides of drawer 3 correspond to the protrusions 4. This facilitates pushing drawer 3 into the placement opening 2 of cabinet 1. Select a suitable insert plate 7 according to the size of the side grooves of drawer 3 and slot 8. After placing the insert plate 7 inside the side grooves on both sides of drawer 3, insert the rear end of the insert plate 7 into the slot 8. Align the front end of the insert plate 7 with the front side of drawer 3. Then, attach the inner strip 10 to the inner side of the insert plate 7. The inner strip 10 and the inner front side of drawer 3 should be aligned to prevent the insert plate 7 from moving forward and exiting from the front side of drawer 3. When the insert plate 7 gradually moves out from the rear side of drawer 3 through slot 8, the inner strip 10 prevents the insert plate 7 from separating from drawer 3.

[0036] Simultaneously, multiple drawers 3 are pulled out from multiple placement openings 2, with the top drawer 3 blocking the bottom drawer 3. Pulling the drawer 3 causes its front side to contact the rotating plate 16 of the rotating frame as it moves out of the placement opening 2. The drawer 3 pushes the rotating plate 16 to rotate, and as the rotating plate 16 rotates, it also twists the torsion spring. During the rotation of the rotating plate 16, the round rod 17 connected to the rotating plate 16 gradually engages with the arc-shaped plate 18 at the front end of the insert plate 7, using the concave surface of the arc-shaped plate 18 to prevent the round rod 17 from continuing to rotate.

[0037] Continue pulling out drawer 3. Since the elastic force of spring 14 is greater than that of elastic plate 13, the elastic force of spring 14 causes the rotating bracket connected to the front end of the insertion rod 9 to directly restrict the movement of the insertion plate 7. At this time, the insertion plate 7 and drawer 3 move out of alignment. The front side of drawer 3 gradually moves away from the front end of insertion plate 7. Using the movement of drawer 3 and the restriction of insertion plate 7, multiple square and round rods 12 press against elastic plate 13, and the opening 6 of drawer 3 opens. At this time, the medical components inside drawer 3 can be taken out through the opening 6 of drawer 3.

[0038] Before pulling out drawer 3, press the round rod 17 of the rotating frame to make the rotating frame rotate inward into the placement opening 2. The threaded rod 20 of the ring frame 19 contacts the inclined surface 23 of the outer groove 22. The inclined surface 23 allows the threaded rod 20 to move freely in parallel inside the ring frame 19. During the rotation, the round rod 17 of the rotating frame does not engage with the arc plate 18. Until the round rod 17 of the rotating frame enters the placement opening 2, pull out drawer 3. Under the action of the elastic plate 13, drawer 3 drives the insert plate 7 to move synchronously. After drawer 3 is pulled out to the appropriate position, release the pressure on the round rod 17. The elastic force of the torsion spring and the elastic force of the rubber strip 21 cause the threaded rod 20 to move back on the inclined surface 23, which causes the rotating frame to rotate in the opposite direction. This makes the round rod 17 of the rotating frame fit tightly against the outer side of the insert plate 7. The elastic force of the torsion spring and the elastic force of the rubber strip 21 make it easy for the rotating frame to clamp drawer 3, so that drawer 3 is in a limited state, making it easy to continuously take out medical parts from the top of drawer 3. After the medical parts are taken out, push the drawer 3 back directly. The round rod 17 of the rotating bracket slides on the outer surface of the insert plate 7 until the drawer 3 is completely inside the placement opening 2. The elasticity of the torsion spring and the elasticity of the rubber strip 21 make the rotating bracket return to its original shape, making it convenient for the next use of the drawer 3.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. An ultra-low temperature medical freezer, comprising a cabinet body (1), wherein a cabinet door is connected to one side of the front side of the cabinet body (1) by a hinge, and a plurality of placement openings (2) are arranged vertically side by side on the front side of the cabinet body (1), and drawers (3) are placed inside the placement openings (2), characterized in that: The two inner walls of the placement opening (2) are provided with protruding strips (4), the two sides of the drawer (3) are provided with grooves (5) that correspond to the protruding strips (4), the two sides of the drawer (3) are provided with openings (6), and the openings (6) are provided with protective structures to protect the medical components inside the drawer (3). The protective structures include insert plates (7), the rear end of the insert plates (7) corresponds to the slots (8) that penetrate the rear side of the drawer (3), the two sides of the placement opening (2) on the front side of the cabinet (1) are provided with limiting structures that limit the insert plates (7), the inner side of the cabinet door is provided with an inner recess corresponding to the limiting structure, and the limiting structure includes a rod (9), the rod (9) is located inside the side of the cabinet (1); The insert plate (7) of the protective structure is located at the top of the groove (5), and the drawer (3) has side grooves on both sides corresponding to the insert plate (7). The side grooves correspond to the slots (8), and the height of the insert plate (7) is less than the height of the opening (6). The front end of the insert plate (7) is flush with the front side of the drawer (3). The inner side of the insert plate (7) is attached with an inner strip (10), and the front side of the inner strip (10) is attached to the inner front side of the drawer (3). The inner side of the insert plate (7) is provided with a vertical groove (11), and a number of square and round rods (12) arranged in parallel are passed through the vertical groove (11). The top of the square and round rod (12) is screwed with a nut, and the bottom surface of the nut is in contact with the top surface of the insert plate (7). The bottom of the square and round rod (12) is connected with a low temperature resistant elastic sheet (13), and the insert plate (7) and the elastic sheet (13) cooperate to block the opening (6) of the drawer (3). The insertion rod (9) of the defined structure is set one-to-one with the insertion plate (7), and the center line of the insertion rod (9) and the center line of the insertion plate (7) are on the same horizontal plane. The cabinet (1) has an oval inner groove inside its side. The back end of the insertion rod (9) is fixedly connected to the inner plate. The top and bottom of the front side of the inner plate are connected to the inside of the side of the cabinet (1) by springs (14). The inner plate is oval in shape. The insertion rod (9) drives the inner plate to slide with the inner groove. The front end of the insert rod (9) is vertically inserted with a rotating frame. The rotating frame includes a rotating rod (15). The top and bottom ends of the rotating rod (15) are fixedly connected to rotating plates (16). The rotating plates (16) are connected to the front end of the insert rod (9) by a torsion spring. The torsion spring is sleeved on the surface of the rotating rod (15). The ends of the two rotating plates (16) away from the insert rod (9) are fixedly connected by a round rod (17). The front end of the insert plate (7) is fixedly connected to an arc plate (18). The concave surface of the arc plate (18) corresponds to the drawer (3). The round rod (17) of the rotating frame corresponds to the arc plate (18).

2. The ultra-low temperature medical freezer according to claim 1, characterized in that: The drawer (3) has baffles on the top of the openings (6) on both sides. The baffles are located on the top of the slot (8), and the bottom of the outer side of the baffles is in contact with the top of the inner side of the insert (7).

3. The ultra-low temperature medical freezer according to claim 1, characterized in that: The rotating plate (16) is fixedly connected to a ring frame (19) at one end away from the round rod (17). Threaded rods (20) are inserted inside the two ring frames (19), and threaded sleeves that limit the threaded rods (20) are screwed on the top and bottom of the threaded rods (20). The threaded rods (20) are connected to the inner wall of the ring frames (19) by means of low-temperature resistant rubber strips (21).

4. The ultra-low temperature medical freezer according to claim 3, characterized in that: The front end of the insert rod (9) is provided with an outer groove (22) corresponding to the threaded rod (20). The front side of the outer groove (22) is set as an inclined surface (23), and the rotating frame rotates by the threaded rod (20) contacting the inclined surface (23) of the outer groove (22).

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