A low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure

Abstract

The present invention provides a low-temperature flat-plate quick-freezing plasma preservation box with a built-in plasma bag flattening structure, relating to the technical field of plasma quick-freezing, comprising a freezing box body; a freezing box door is rotatably mounted on the freezing box body via a row of hinges; a support unit is mounted inside the freezing box body; a row of plasma drawers are mounted on the support unit; a plasma bag flattening unit is mounted at the center of the support unit; a multifunctional unit is mounted outside the freezing box body; a control unit is mounted outside the freezing box door, and the control unit is used to control the multifunctional unit; a row of movable flattening plates of the present invention move downward simultaneously under the action of two force-bearing inclined blocks and two circular force-bearing rods, thereby flattening the plasma bags in a row of plasma drawers; the problem that the plasma to be quick-frozen is prone to uneven thickness due to the general lack of a plasma bag flattening structure is solved, and thicker plasma requires a longer time to be completely frozen.

Description

Technical Field

[0001] The invention belongs to the technical field of plasma quick freezing, and more specifically, relates to a low-temperature flat quick-freezing plasma storage box with a built-in plasma bag flattening structure. Background Art

[0002] The main purpose of quick freezing of plasma is to maximize the preservation of its biological activity and stability of effective ingredients; plasma contains a large number of unstable coagulation factors, proteins and enzymes, which will rapidly degrade at room temperature; by quick freezing below -30°C, small ice crystals can be quickly formed, reducing mechanical damage to cells, while inhibiting enzyme activity, so that the coagulation factor activity retention rate can reach more than 80%.

[0003] The plasma quick-freezing equipment currently in use still has the following problems: 1. There is generally no plasma bag flattening structure, which causes the plasma to be quick-frozen to have different thicknesses. Thicker plasma takes longer to completely freeze; 2. When the box door is in the open state, it cannot automatically improve the stability of the box, which causes the box to move easily when the plasma drawer is placed and taken out; at the same time, when the box door is in the closed state, it is inconvenient for the staff to clean the bottom. Summary of the Invention

[0004] The disclosed embodiment relates to a low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure, which comprises a support unit, a plasma bag flattening unit, a multifunctional unit and a control unit; a row of movable flattening plates simultaneously move downward under the action of two load-bearing inclined blocks and two circular load-bearing rods, thereby flattening the plasma bags in a row of plasma drawers; when the output shafts of the two linear electric cylinders are fully retracted, the bottoms of the four rubber brake blocks contact the ground, thereby preventing displacement and making the freezing box more stable during use; and the problems of uneven thickness of plasma to be quick-frozen and the inability to automatically improve the stability of the box when the door is opened are solved.

[0005] The present invention provides a low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure, comprising a freezing box body; a freezing box door rotatably mounted on the freezing box body via a row of hinges; a support unit mounted inside the freezing box body; a row of plasma drawers mounted on the support unit; a plasma bag flattening unit mounted at the center of the support unit, the plasma bag flattening unit being used to move the support unit;

[0006] A multifunctional unit is installed on the outside of the freezer body, and is used to limit the freezer door and improve the stability of the freezer body when in use; a control unit is installed on the outside of the freezer door, and is used to control the multifunctional unit.

[0007] In at least some embodiments, the support unit includes: a rectangular support plate, a circular guide rod and a movable pressing plate; the rectangular support plates are provided in a row, and the row of rectangular support plates is installed inside the freezer body by screws; the circular guide rods are provided in four rows, and the four rows of circular guide rods are fixedly installed on the top of the row of rectangular support plates; the movable pressing plates are provided in a row, and the row of movable pressing plates is slidably installed on the outside of the four rows of circular guide rods.

[0008] In at least some embodiments, the support unit also includes: a limit ring A, a coil spring A and a circular connecting rod; the limit ring A is provided in four rows, and the four rows of limit rings A are fixedly installed on the top ends of the four rows of circular guide rods; the coil springs A are provided in four rows, and the four rows of coil springs A are sleeved on the outside of the four rows of circular guide rods, and the four rows of coil springs A are located between a row of rectangular support plates and a row of movable pressing plates; there are four circular connecting rods, and the four circular connecting rods are fixedly installed on a row of movable pressing plates, and the four circular connecting rods are also slidably connected to a row of rectangular support plates.

[0009] In at least some embodiments, the plasma bag flattening unit includes: a screw mounting seat, a driving screw and a force-bearing bevel block; there are two screw mounting seats, and the two screw mounting seats are mounted on the corresponding movable flattening plates by screws; the driving screw is rotatably mounted on the two screw mounting seats; there are two force-bearing bevel blocks, and the two force-bearing bevel blocks are fixedly mounted on the corresponding rectangular support plates.

[0010] In at least some embodiments, the plasma bag flattening unit also includes: a rectangular movable seat, a circular force-bearing rod and an adjusting handwheel; there are two rectangular movable seats, and the two rectangular movable seats are threadedly connected to the driving screw, and the bottoms of the two rectangular movable seats are in contact with the corresponding movable flat plate; there are two circular force-bearing rods, and the two circular force-bearing rods are fixedly installed on the tops of the two rectangular movable seats, and the tops of the two circular force-bearing rods are in contact with the bottoms of the two force-bearing inclined blocks; the adjusting handwheel is fixedly installed at the front end of the driving screw.

[0011] In at least some embodiments, the multifunctional unit includes: a mounting plate and a linear electric cylinder; there are two mounting plates, and the two mounting plates are fixedly installed on the left and right sides of the freezer box; there are two linear electric cylinders, and the two linear electric cylinders are fixedly installed on the top of the two mounting plates.

[0012] In at least some embodiments, the multifunctional unit further includes: a movable sealing frame and a rubber brake block; the movable sealing frame is slidably mounted on the outside of the freezing chamber, and the bottom of the movable sealing frame is fixedly connected to the output shafts of the two linear electric cylinders; there are four rubber brake blocks in total, and the four rubber brake blocks are fixedly mounted on the bottom end of the movable sealing frame.

[0013] In at least some embodiments, the control unit includes: a V-shaped mounting frame, a movable control seat and a limit retaining ring B; the V-shaped mounting frame is mounted on the outside of the freezer door by screws; the movable control seat is slidably mounted on the V-shaped mounting frame; the limit retaining ring B is fixedly mounted on the movable control seat, and the outer side of the limit retaining ring B is in contact with the V-shaped mounting frame.

[0014] In at least some embodiments, the control unit further includes: a coil spring B, a control button A and a control button B; the coil spring B is sleeved on the outside of the movable control seat, and the coil spring B is located between the freezer door and the limit ring B; the control button A is fixedly installed on the inside of the movable control seat; the control button B is fixedly installed on the V-shaped mounting frame.

[0015] In at least some embodiments, the control button A and the control button B are electrically connected to the two linear electric cylinders; when the control button A is pressed, the output shafts of the two linear electric cylinders are all extended; when the control button B is pressed, the output shafts of the two linear electric cylinders are all retracted.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The arrangement of the four rows of coil springs A of the present invention allows a certain gap to exist between a row of movable pressing plates and a row of plasma drawers, facilitating the placement and removal of the plasma drawers; the arrangement of the four circular connecting rods allows the row of movable pressing plates to move downward or upward simultaneously under the action of the four circular connecting rods;

[0018] In addition, when the staff turns the adjusting hand wheel, the two rectangular movable seats move backward at the same time; when the staff turns the adjusting hand wheel in the opposite direction, the two rectangular movable seats move forward at the same time; when the two rectangular movable seats move backward at the same time, a row of movable pressing plates move downward at the same time under the action of two force-bearing inclined blocks and two circular force-bearing rods, flattening the plasma bags in a row of plasma drawers; when the two rectangular movable seats move forward at the same time, a row of movable pressing plates move upward at the same time under the action of four rows of coil springs A, facilitating the removal of a row of plasma drawers.

[0019] 2. When the output shafts of the two linear electric cylinders are fully extended, the movable sealing frame can contact the outer wall of the freezer door, limiting the freezer door. This allows the operator to automatically limit the freezer door without turning the lock. At the same time, the freezer body automatically closes when stressed, making it easier for the operator to clean the bottom of the freezer body. When the output shafts of the two linear electric cylinders are fully retracted, the bottoms of the four rubber brake blocks contact the ground, preventing the freezer from moving and making the freezer body more stable during use.

[0020] In addition, the setting of control button B makes it convenient for staff to control the retraction of the output shafts of the two linear electric cylinders; when it is necessary to press control button A, the staff needs to push the movable control seat hard to make the freezer door press control button A to ensure that when the two linear electric cylinders drive the movable sealing frame to move upward, the freezer door must be in a closed state to prevent the freezer door from hindering the upward movement of the movable sealing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0022] The drawings described below only relate to some embodiments of the present invention, rather than limiting the present invention.

[0023] In the attached figure:

[0024] Figure 1 Shows a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 shows a schematic structural diagram of the support unit of the present invention;

[0026] Figure 3 The present invention is shown Figure 2 Schematic diagram of the local enlarged structure of area A in the middle;

[0027] Figure 4 A schematic structural diagram of a plasma bag flattening unit according to the present invention is shown;

[0028] Figure 5 A schematic diagram of the structure of the support unit and the plasma bag flattening unit of the present invention from a left side perspective is shown;

[0029] Figure 6 The present invention is shown Figure 5 Schematic diagram of the local enlarged structure of area B in the middle;

[0030] Figure 7 shows a schematic structural diagram of the multifunctional unit of the present invention;

[0031] Figure 8 Shows a schematic structural diagram of the control unit of the present invention;

[0032] Figure 9 The present invention is shown Figure 1 Schematic diagram of the main viewing angle structure;

[0033] Figure 10 The present invention is shown Figure 9 Schematic diagram of the locally enlarged structure of the middle C area.

[0034] List of reference numerals:

[0035] 100. Freezer body; 101. Freezer door;

[0036] 200, support unit; 201, rectangular support plate; 202, circular guide rod; 203, movable pressing plate; 204, limit ring A; 205, coil spring A; 206, circular connecting rod;

[0037] 300, plasma drawer;

[0038] 400, plasma bag flattening unit; 401, screw mounting base; 402, driving screw; 403, load-bearing inclined block; 404, rectangular movable seat; 405, circular load-bearing rod; 406, adjusting handwheel;

[0039] 500, multifunctional unit; 501, mounting plate; 502, linear electric cylinder; 503, movable sealing frame; 504, rubber brake block;

[0040] 600, control unit; 601, V-shaped mounting bracket; 602, movable control seat; 603, limit ring B; 604, coil spring B; 605, control button A; 606, control button B. DETAILED DESCRIPTION

[0041] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0042] Example: Please refer to Figures 1 to 10 As shown: The present invention provides a low-temperature flat-plate quick-frozen plasma preservation box with a built-in plasma bag flattening structure, comprising a freezing box body 100; a freezing box door 101 is rotatably installed on the freezing box body 100 through a row of hinges; a support unit 200 is installed inside the freezing box body 100; a row of plasma drawers 300 are installed on the support unit 200; a plasma bag flattening unit 400 is installed at the center of the support unit 200, and the plasma bag flattening unit 400 is used to move the support unit 200; a multi-function unit 500 is installed on the outside of the freezing box body 100, and the multi-function unit 500 is used to limit the freezing box door 101, and the multi-function unit 500 is also used to improve the stability of the freezing box body 100 during use; a control unit 600 is installed on the outside of the freezing box door 101, and the control unit 600 is used to control the multi-function unit 500.

[0043] In the embodiment of the present disclosure, Figure 2 、 Figure 3 、 Figure 4 and Figure 6As shown, the support unit 200 includes: a rectangular support plate 201, a circular guide rod 202 and a movable pressure plate 203; the rectangular support plates 201 are arranged in a row, and the row of rectangular support plates 201 is installed inside the freezer body 100 by screws; the circular guide rods 202 are arranged in four rows, and the four rows of circular guide rods 202 are fixedly installed on the top of the row of rectangular support plates 201; the movable pressure plate 203 is arranged in a row, and the row of movable pressure plates 203 is slidably installed on the outside of the four rows of circular guide rods 202; the support unit 200 also includes: a limit ring A204, a coil spring A205 and a circular Connecting rod 206; There are four rows of limit rings A204, and the four rows of limit rings A204 are fixedly mounted on the top ends of the four rows of circular guide rods 202; There are four rows of coil springs A205, and the four rows of coil springs A205 are sleeved on the outside of the four rows of circular guide rods 202, and the four rows of coil springs A205 are located between a row of rectangular support plates 201 and a row of movable pressing plates 203; There are four circular connecting rods 206, and the four circular connecting rods 206 are fixedly mounted on a row of movable pressing plates 203, and the four circular connecting rods 206 are also slidably connected to a row of rectangular support plates 201;

[0044] The plasma bag flattening unit 400 includes: a screw mounting seat 401, a driving screw 402 and a force-bearing inclined block 403; there are two screw mounting seats 401, and the two screw mounting seats 401 are mounted on the corresponding movable flattening plate 203 by screws; the driving screw 402 is rotatably mounted on the two screw mounting seats 401; there are two force-bearing inclined blocks 403, and the two force-bearing inclined blocks 403 are fixedly mounted on the corresponding rectangular support plate 201; the plasma bag flattening unit 400 also includes: a rectangular movable seat 404, a circular force-bearing rod 4 05 and the adjusting hand wheel 406; there are two rectangular movable seats 404, and the two rectangular movable seats 404 are threadedly connected to the driving screw 402, and the bottoms of the two rectangular movable seats 404 are in contact with the corresponding movable pressing plates 203; there are two circular force-bearing rods 405, and the two circular force-bearing rods 405 are fixedly installed on the tops of the two rectangular movable seats 404, and the tops of the two circular force-bearing rods 405 are in contact with the bottoms of the two force-bearing oblique blocks 403; the adjusting hand wheel 406 is fixedly installed on the front end of the driving screw 402;

[0045] Its specific function is as follows: because the four rows of coil springs A205 are sleeved on the outside of the four rows of circular guide rods 202, and the four rows of coil springs A205 are located between the row of rectangular support plates 201 and the row of movable pressing plates 203, a certain gap can be formed between the row of movable pressing plates 203 and the row of plasma drawers 300, which is convenient for placing and taking out the plasma drawers 300; and because the row of movable pressing plates 203 are slidably mounted on the outside of the four rows of circular guide rods 202, and the four circular connecting rods 206 are fixedly mounted on the row of movable pressing plates 203, and the four circular connecting rods 206 are also slidably connected to the row of rectangular support plates 201, the row of movable pressing plates 203 can move downward or upward at the same time under the action of the four circular connecting rods 206;

[0046] In addition, because the two rectangular movable seats 404 are threadedly connected to the driving screw 402, and the bottoms of the two rectangular movable seats 404 are in contact with the corresponding movable pressing plates 203, and the adjusting hand wheel 406 is fixedly installed on the front end of the driving screw 402, when the staff turns the adjusting hand wheel 406, the two rectangular movable seats 404 move backward at the same time; when the staff turns the adjusting hand wheel 406 in the opposite direction, the two rectangular movable seats 404 move forward at the same time; and because the two force-bearing oblique blocks 403 are fixedly installed on the corresponding rectangular support plates 201, and the two circular force-bearing rods 405 are fixedly installed The tops of the two rectangular movable seats 404 and the tops of the two circular force-bearing rods 405 are in contact with the bottoms of the two force-bearing oblique blocks 403. When the two rectangular movable seats 404 move backward at the same time, a row of movable pressing plates 203 move downward at the same time under the action of the two force-bearing oblique blocks 403 and the two circular force-bearing rods 405, flattening the plasma bags in a row of plasma drawers 300; when the two rectangular movable seats 404 move forward at the same time, a row of movable pressing plates 203 move upward at the same time under the action of four rows of coil springs A205, facilitating the removal of a row of plasma drawers 300.

[0047] In the embodiment of the present disclosure, Figure 7 、 Figure 8 and Figure 10 As shown, the multifunctional unit 500 includes: a mounting plate 501 and a linear electric cylinder 502; there are two mounting plates 501, and the two mounting plates 501 are fixedly mounted on the left and right sides of the freezing chamber 100; there are two linear electric cylinders 502, and the two linear electric cylinders 502 are fixedly mounted on the top of the two mounting plates 501; the multifunctional unit 500 also includes: a movable sealing frame 503 and a rubber brake block 504; the movable sealing frame 503 is slidably mounted on the outside of the freezing chamber 100, and the bottom of the movable sealing frame 503 is fixedly connected to the output shafts of the two linear electric cylinders 502; there are four rubber brake blocks 504, and the four rubber brake blocks 504 are fixedly mounted on the bottom end of the movable sealing frame 503;

[0048] The control unit 600 includes: a V-shaped mounting frame 601, a movable control seat 602 and a limit retaining ring B603; the V-shaped mounting frame 601 is mounted on the outside of the freezer door 101 by screws; the movable control seat 602 is slidably mounted on the V-shaped mounting frame 601; the limit retaining ring B603 is fixedly mounted on the movable control seat 602, and the outer side of the limit retaining ring B603 is in contact with the V-shaped mounting frame 601; the control unit 600 also includes: a coil spring B604, a control button A605 and a control button B606; the coil spring B604 is sleeved on the movable control seat 602. The control base 602 is external, and the coil spring B604 is located between the freezer door 101 and the retaining ring B603. The control button A605 is fixedly mounted inside the movable control base 602. The control button B606 is fixedly mounted on the V-shaped mounting bracket 601. The control buttons A605 and B606 are electrically connected to the two linear electric cylinders 502. When the control button A605 is pressed, the output shafts of the two linear electric cylinders 502 are fully extended. When the control button B606 is pressed, the output shafts of the two linear electric cylinders 502 are fully retracted.

[0049] The specific function is as follows: because the movable sealing frame 503 is slidably mounted on the outside of the freezing box body 100, and the bottom of the movable sealing frame 503 is fixedly connected to the output shafts of the two linear electric cylinders 502, when the output shafts of the two linear electric cylinders 502 are fully extended, the movable sealing frame 503 can contact the outer wall of the freezing box door 101, thereby limiting the freezing box door 101, so that the staff can realize the automatic limit of the freezing box door 101 without turning the lock; at the same time, the freezing box body 100 has an automatic effect after being subjected to force, which is convenient for the staff to clean the bottom of the freezing box body 100; and because the four rubber brake blocks 504 are fixedly mounted on the bottom end of the movable sealing frame 503, when the output shafts of the two linear electric cylinders 502 are fully retracted, the bottoms of the four rubber brake blocks 504 contact the ground, which has an anti-movement effect, making the freezing box body 100 more stable when in use;

[0050] In addition, because the control button B606 is fixedly mounted on the V-shaped mounting frame 601, it is convenient for the staff to control the retraction of the output shafts of the two linear electric cylinders 502; and because the coil spring B604 is sleeved on the outside of the movable control seat 602, and the coil spring B604 is located between the freezer door 101 and the limit ring B603, and the control button A605 is fixedly mounted on the inside of the movable control seat 602, when it is necessary to press the control button A605, the staff needs to push the movable control seat 602 with force to make the freezer door 101 press the control button A605, to ensure that when the two linear electric cylinders 502 drive the movable sealing frame 503 to move upward, the freezer door 101 must be in a closed state to prevent the freezer door 101 from hindering the upward movement of the movable sealing frame 503.

[0051] The specific usage and function of this embodiment are as follows:

[0052] When the present invention is used, the staff first places a row of plasma drawers 300 with plasma bags on top of a row of rectangular support plates 201. The arrangement of the four rows of coil springs A205 allows a certain gap to exist between a row of movable pressing plates 203 and a row of plasma drawers 300, so as to facilitate the placement and removal of the plasma drawers 300. Then the staff rotates the adjusting hand wheel 406, and at this time the two rectangular movable seats 404 move backward at the same time. When the two rectangular movable seats 404 move backward at the same time, the row of movable pressing plates 203 moves downward at the same time under the action of the two force-bearing oblique blocks 403 and the two circular force-bearing rods 405, so as to adjust the plasma bags in the row of plasma drawers 300. The plasma bag plays a flattening role; then the staff closes the freezer door 101 through the movable control seat 602. When it is necessary to press the control button A605, the staff needs to push the movable control seat 602 hard to make the freezer door 101 press the control button A605, ensuring that when the two linear electric cylinders 502 drive the movable sealing frame 503 to move upward, the freezer door 101 must be in a closed state to prevent the freezer door 101 from obstructing the upward movement of the movable sealing frame 503; when the output shafts of the two linear electric cylinders 502 are fully extended, the movable sealing frame 503 can contact the outer wall of the freezer door 101, thereby limiting the freezer door 101;

[0053] When it is necessary to take out the plasma bags in a row of plasma drawers 300, the staff presses the control button B606, which facilitates the staff to control the retraction of the output shafts of the two linear electric cylinders 502; when the output shafts of the two linear electric cylinders 502 are fully retracted, the bottoms of the four rubber brake blocks 504 contact the ground, which has an anti-shifting effect, making the freezing box 100 more stable when in use; then the staff reversely rotates the adjustment handwheel 406, at this time, the two rectangular movable seats 404 move forward at the same time; when the two rectangular movable seats 404 move forward at the same time, a row of movable pressing plates 203 move upward at the same time under the action of four rows of coil springs A205, facilitating the removal of a row of plasma drawers 300.

[0054] In this article, there are several points to note:

[0055] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0056] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0057] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure, comprising a freezing box body (100); characterized in that: A freezer door (101) is rotatably mounted on the freezer body (100) via a row of hinges; a support unit (200) is mounted inside the freezer body (100); a row of plasma drawers (300) are mounted on the support unit (200); a plasma bag flattening unit (400) is mounted at the center of the support unit (200), and the plasma bag flattening unit (400) is used to move the support unit (200); A multifunctional unit (500) is installed on the outside of the freezing box (100), and the multifunctional unit (500) is used to limit the freezing box door (101). The multifunctional unit (500) is also used to improve the stability of the freezing box (100) when in use; a control unit (600) is installed on the outside of the freezing box door (101), and the control unit (600) is used to control the multifunctional unit (500); The multifunctional unit (500) comprises: a mounting plate (501) and a linear electric cylinder (502); there are two mounting plates (501) in total, and the two mounting plates (501) are fixedly mounted on the left and right sides of the freezing box (100); there are two linear electric cylinders (502) in total, and the two linear electric cylinders (502) are fixedly mounted on the tops of the two mounting plates (501); the multifunctional unit (500) further comprises: a movable sealing frame (503) and a rubber brake block (504); the movable sealing frame (503) is slidably mounted on the outside of the freezing box (100), and the bottom of the movable sealing frame (503) is fixedly connected to the output shafts of the two linear electric cylinders (502); there are four rubber brake blocks (504) in total, and the four rubber brake blocks (504) are fixedly mounted on the bottom end of the movable sealing frame (503); The control unit (600) comprises: a V-shaped mounting frame (601), a movable control seat (602), a control button A (605) and a control button B (606); the movable control seat (602) is slidably mounted on the V-shaped mounting frame (601); the control button A (605) is fixedly mounted inside the movable control seat (602); the control button B (606) is fixedly mounted on the V-shaped mounting frame (601); the control button A (605) and the control button B (606) are electrically connected to two linear electric cylinders (502); when the control button A (605) is pressed, the output shafts of the two linear electric cylinders (502) are all extended; when the control button B (606) is pressed, the output shafts of the two linear electric cylinders (502) are all retracted.

2. A low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure according to claim 1, characterized in that: The support unit (200) comprises: a rectangular support plate (201), a circular guide rod (202) and a movable pressing plate (203); the rectangular support plates (201) are provided in one row, and the row of rectangular support plates (201) is installed inside the freezing box (100) by screws; the circular guide rods (202) are provided in four rows, and the four rows of circular guide rods (202) are fixedly installed on the top of the row of rectangular support plates (201); the movable pressing plate (203) is provided in one row, and the row of movable pressing plates (203) is slidably installed outside the four rows of circular guide rods (202).

3. The low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure according to claim 2, characterized in that: The support unit (200) further comprises: a limit ring A (204), a coil spring A (205) and a circular connecting rod (206); the limit ring A (204) is provided in four rows, and the four rows of limit rings A (204) are fixedly mounted on the top ends of the four rows of circular guide rods (202); the coil springs A (205) are provided in four rows, and the four rows of coil springs A (205) are sleeved on the outside of the four rows of circular guide rods (202), and the four rows of coil springs A (205) are located between a row of rectangular support plates (201) and a row of movable pressing plates (203); the circular connecting rods (206) are provided in four rows, and the four circular connecting rods (206) are fixedly mounted on the row of movable pressing plates (203), and the four circular connecting rods (206) are also slidably connected to the row of rectangular support plates (201).

4. The low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure according to claim 2, characterized in that: The plasma bag flattening unit (400) comprises: a screw mounting seat (401), a driving screw (402) and a force-bearing inclined block (403); there are two screw mounting seats (401), and the two screw mounting seats (401) are mounted on the corresponding movable flattening plate (203) by screws; the driving screw (402) is rotatably mounted on the two screw mounting seats (401); there are two force-bearing inclined blocks (403), and the two force-bearing inclined blocks (403) are fixedly mounted on the corresponding rectangular support plate (201).

5. The low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure according to claim 4, characterized in that: The plasma bag flattening unit (400) further comprises: a rectangular movable seat (404), a circular force-bearing rod (405) and an adjusting hand wheel (406); there are two rectangular movable seats (404) in total, and the two rectangular movable seats (404) are threadedly connected to the driving screw (402), and the bottoms of the two rectangular movable seats (404) are in contact with the corresponding movable flattening plates (203); there are two circular force-bearing rods (405) in total, and the two circular force-bearing rods (405) are fixedly mounted on the tops of the two rectangular movable seats (404), and the tops of the two circular force-bearing rods (405) are in contact with the bottoms of the two force-bearing inclined blocks (403); the adjusting hand wheel (406) is fixedly mounted on the front end of the driving screw (402).

6. The low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure according to claim 1, characterized in that: The control unit (600) further comprises: a limiting retaining ring B (603); the V-shaped mounting frame (601) is mounted on the outside of the freezer door (101) by screws; the limiting retaining ring B (603) is fixedly mounted on the movable control seat (602), and the outside of the limiting retaining ring B (603) is in contact with the V-shaped mounting frame (601).

7. The low-temperature flat-plate quick-frozen plasma storage box with a built-in plasma bag flattening structure according to claim 6, characterized in that: The control unit (600) further comprises: a coil spring B (604); the coil spring B (604) is sleeved on the outside of the movable control seat (602), and the coil spring B (604) is located between the freezer door (101) and the limit ring B (603).

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