A plasma freezer

Abstract

The application provides a plasma freezer, comprising a cabinet body, further comprising: a freezing inner container arranged in the cabinet body, used for storing and freezing plasma bags, and the freezing inner container is open at the upper end; a heat preservation plate is driven by a first power source to realize lifting and covering the freezing inner container, so as to increase the heat preservation property of the freezing inner container and improve the freezing storage effect of the plasma. The plasma bag placing assembly moves up and down with the lifting of the heat preservation plate, and after the plasma bag placing assembly moves up to the upper side of the freezing inner container, the stepping motor drives the inner layer side plate to move forward, and due to the inclined arrangement of the slide rail on the carrier plate, the carrier plate automatically moves forward to the front side of the freezing inner container with the forward movement of the inner layer side plate, so as to facilitate the taking and placing of the plasma bags, and when the inner layer side plate moves backward, the carrier plate moves backward to reset through the pulling of the traction rope, so as to be stored in the freezing inner container with the lowering of the heat preservation plate for freezing preservation.

Description

Technical Field

[0001] This manual relates to the field of plasma freezing technology, and in particular to a plasma freezing cabinet. Background Technology

[0002] Plasma is an indispensable resource in the medical field, and its storage quality directly affects the safety and effectiveness of clinical treatment. According to the storage requirements for blood products, fresh frozen plasma needs to be stored long-term in a cryogenic environment below -20°C, while components such as cryoprecipitate and clotting factors require cryopreservation in a deep cryogenic environment below -60°C to maintain their biological activity. Therefore, plasma freezers, as key equipment in the blood cold chain storage, must possess reliable cryogenic cooling capabilities, stable temperature control performance, and excellent insulation.

[0003] In existing technologies, plasma freezers typically employ a horizontal structure, with the plasma storage space located inside the freezer. Operators must bend over and reach their arms into the deep, cold interior to stack or retrieve plasma bags. Due to the considerable depth of the freezing space and the extremely low temperature inside the freezer, the operation is not only laborious and inefficient, but also prone to causing discomfort to operators due to prolonged exposure to the low-temperature environment. Furthermore, during storage and retrieval, the prolonged opening of the insulation cover leads to the leakage of a large amount of cold air, increasing the energy consumption burden of the refrigeration system and causing temperature fluctuations inside the freezer, thus affecting the storage stability of the plasma. Summary of the Invention

[0004] This specification provides one or more embodiments of a plasma freezer, including a cabinet body, and further comprising: A freezing liner, installed inside the cabinet, is used to store and freeze blood plasma bags; the upper end of the freezing liner is open. An insulation plate is disposed on the upper side of the freezing inner liner and is driven by a first power source to rise and fall vertically to abut against the upper opening of the freezing inner liner, thereby sealing the freezing inner liner; A plasma bag placement assembly is located below and fixed to the insulation plate, and moves up and down with the insulation plate. The plasma bag placement assembly includes a pressure plate component and a tray component. The tray component includes an outer side plate, a carrying plate, and an inner side plate. Two outer side plates are provided and symmetrically fixed to the insulation plate. Two inner side plates are symmetrically provided and slidably connected to the two outer side plates respectively. The carrying plate is slidably connected between the two inner side plates. The inner side plates are driven to move back and forth by a second power source. The carrying plate can be completely placed in front of the frozen inner liner as the inner side plates move forward, so that plasma can be piled on it. The pressure plate component includes a limiting plate, which is driven by a third power source to press down, thereby confining the plasma bag on the carrier plate.

[0005] According to one or more embodiments of this specification, the freezing inner liner includes a freezing outer shell and an insulating liner. The freezing outer shell is fixed inside the cabinet. The upper surface of the freezing outer shell has a downwardly recessed cavity. The insulating liner is fitted and fixed inside the cavity. The upper surface of the insulating liner has a downwardly recessed freezing cavity. When the insulating plate seals the freezing inner liner, the insulating plate abuts against the upper surface of the freezing outer shell. The carrying plate is located inside the freezing cavity.

[0006] In one or more embodiments of this specification, the insulation board includes a keel and a surface plate. The surface plate is covered and fixed on the keel. The first power source is a first cylinder. Four first cylinders are arranged in a rectangular array. The four first cylinders surround the outside of the freezing inner liner. The upper end of the piston rod of the first cylinder is fixedly connected to the surface plate. The lifting and lowering of the insulation board is achieved by extending and retracting the first cylinder. Two symmetrically arranged connecting plates are fixed on the keel, and the connecting plates extend upward through the surface plate. Two symmetrically arranged horizontal connecting strips are fixed between the two connecting plates, and the pressure plate component is fixed between the two horizontal connecting strips. The two outer side plates are located on the underside of the two connecting plates, and a number of horizontally equidistant vertical connecting strips are fixed between the connecting plates and the outer side plates.

[0007] In one or more embodiments of this specification, the pressure plate component further includes a lifting rod and a first mounting bracket. Two first mounting brackets are symmetrically arranged and fixed between two horizontal connecting strips. The third power source is a second cylinder. Two second cylinders are arranged and fixed on the first mounting brackets respectively. Two lifting rods are arranged and located on the upper side of the two first mounting brackets respectively and fixedly connected to the upper end of the piston rod of the second cylinder. Push rods are fixed between both ends of the lifting rod and the limiting plate. The push rods pass through the first mounting bracket and are slidably connected to it.

[0008] According to one or more embodiments of this specification, the tray component further includes a cover, a lead screw, a push plate, a slide plate, a lead screw nut, and a gantry connecting frame. The cover is fixed to the lower side of the insulation board. The gantry connecting frame is located on the lower side of the cover and on the upper side of the limiting plate. The lead screw nut and the lead screw are disposed inside the cover. The two ends of the lead screw are rotatably connected to the lower side of the insulation board through bearing seats and are parallel to the moving direction of the carrying plate. The lead screw nut is threadedly connected to the lead screw. The second power source is a stepper motor fixed to the insulation board. The stepper motor and the lead screw are poweredly connected through a transmission gear. The slide plate is fixed to the lower end face of the lead screw nut. The push plate is located on the lower side of the cover. Two symmetrically arranged connecting parts are fixed between the push plate and the slide plate. Two sliding grooves are opened on the lower side wall of the cover for the connecting parts to slide. The gantry connecting frame is fixed to the push plate. The two ends of the gantry connecting frame are bent downward and fixed to two inner side plates.

[0009] In one or more embodiments of this specification, guide rods are provided on both sides of the lead screw and are parallel to the lead screw. The two ends of the guide rods are fixed to the insulation board by rod seats. A slider is slidably connected to the guide rod. The slider is fixed to the lead screw nut and the lower end face of the slider.

[0010] In one or more embodiments of this specification, the upper edges of the two side walls of the carrying plate parallel to its sliding direction are horizontally folded to form a first folded edge, a rope end fixing member is fixed on the first folded edge of the carrying plate, the upper edge of the inner side plate is horizontally folded to form a second folded edge, a fixing seat is fixed on the side of the outer side plate near the carrying plate, a traction rope is connected between the fixing seat and the rope end fixing member, and a notch is provided on the second folded edge for the traction rope to slide. The inner side plate and the outer side plate, as well as the two side walls of the carrying plate and the inner side plate, are slidably connected by slide rails. The slide rails between the two side walls of the carrying plate and the inner side plate are inclined downward from back to front. When the inner side plate moves forward, the carrying plate slides forward along the slide rails on it under the action of gravity.

[0011] In one or more embodiments of this specification, guide wheel frames are fixed on both the upper and lower sides of the second folded edge of the inner side plate. The guide wheel frames on the upper and lower sides form a ">" shape. A guide wheel is rotatably connected to the end of the guide wheel frame away from the second folded edge. The notch on the second folded edge is located between the guide wheels on the upper and lower sides. The traction rope slides on the second folded edge under the guidance of the guide wheels. Beneficial effects

[0012] 1. The insulation plate is raised and lowered by the first power source to cover the freezing inner liner, thereby increasing the insulation of the freezing inner liner and improving the freezing storage effect of plasma.

[0013] 2. The plasma bag placement assembly moves up and down with the lifting and lowering of the insulation plate. After the plasma bag placement assembly moves upward to the upper side of the freezing inner liner, the stepper motor drives the inner side plate to move forward. Due to the inclined setting of the slide rail on the loading plate, the loading plate automatically moves forward to the front side of the freezing inner liner as the inner side plate moves forward, which facilitates the placement and removal of plasma bags. When the inner side plate moves backward, the loading plate is pulled backward and reset by the traction rope so that it can be stored in the freezing inner liner for freezing preservation as the insulation plate descends. Attached Figure Description

[0014] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. The same numbers in the drawings denote the same structures or steps.

[0015] Figure 1 This is a schematic diagram of the overall structure of a plasma freezer according to some embodiments of this specification.

[0016] Figure 2 This is a schematic diagram of the internal structure of a plasma freezer according to some embodiments of this specification.

[0017] Figure 3 This is a cross-sectional view of a plasma freezer according to some embodiments of this specification.

[0018] Figure 4 This is a schematic diagram showing the installation position of a plasma bag placement assembly in a plasma freezer according to some embodiments of this specification.

[0019] Figure 5 This is a schematic diagram of the structure of a plasma bag placement assembly in a plasma freezer, as shown in some embodiments of this specification.

[0020] Figure 6 This is a cross-sectional view of a plasma bag placement assembly in a plasma freezer, as shown in some embodiments of this specification.

[0021] Figure 7 This is based on some embodiments shown in this specification. Figure 6 Enlarged diagram of point A in the middle.

[0022] Figure 8 This is based on some embodiments shown in this specification. Figure 6 A bottom view.

[0023] Figure 9 This is a structural schematic diagram of a tray component in a plasma freezer, as shown in some embodiments of this specification.

[0024] Figure 10 This is based on some embodiments shown in this specification. Figure 9 Enlarged diagram of point B in the middle.

[0025] Figure 11 This is a schematic diagram of a slide rail on the inner side panel of a plasma freezer, as shown in some embodiments of this specification.

[0026] In the picture: 3. Plasma bag placement assembly; 10. Cabinet body; 11. Cabinet door; 12. Touch panel; 13. Base plate; 14. Second mounting bracket; 15. Limit sensor; 20. Freezing shell; 21. Insulation lining; 30. Shell; 31. Keel; 32. Pressure plate assembly; 320. Lifting rod; 321. Second cylinder; 322. Push rod; 323. First mounting bracket; 324. Limit plate; 33. Horizontal connecting strip; 34. Connecting plate; 35. Vertical connecting strip; 36. Tray assembly; 360. Outer side panel; 61. Loading plate; 362. Cover; 363. Stepper motor; 364. Lead screw; 365. Push plate; 366. Guide rod; 367. Slide plate; 368. Lead screw nut; 369. Slider; 3610. Rod seat; 3611. Transmission gear; 3612. Connector; 3613. Gantry connecting frame; 3614. Inner side plate; 370. Traction rope; 371. Rope end fixing piece; 372. Guide wheel; 373. Guide wheel frame; 38. Fixing seat; 39. Slide rail; 40. Surface plate; 41. First cylinder; Detailed Implementation

[0027] To more clearly illustrate the technical solutions of the embodiments in this specification, the embodiments will be described in detail below with reference to the accompanying drawings. Obviously, the content described below are some examples or embodiments of this specification. For those skilled in the art, without creative effort, the technical solutions or means disclosed in this specification can be applied to other scenarios based on this technical content.

[0028] It should be understood that the terms "system," "device," "unit," and / or "module" used in this specification are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0029] Unless otherwise specified, the technical terms used to describe components, elements, etc. in this specification are not singular but may include plural. Generally speaking, terms such as "comprising" or "including" only indicate that explicitly identified steps, elements, or components are included, and these steps, elements, and components do not constitute an exclusive list, as the described method or apparatus may also include other steps or components.

[0030] This specification uses flowcharts to illustrate the operational steps performed by the apparatus or system of related embodiments. However, unless otherwise specified, the order in which these steps are described should not be construed as a limitation on the order of execution. Those skilled in the art can adjust the order of these steps based on the knowledge and information conveyed by the embodiments in this specification. Adjustments include, but are not limited to, reversing the order of steps, merging multiple steps, and splitting a step.

[0031] In existing technologies, plasma freezers typically employ a horizontal structure, with the plasma storage space located inside the freezer. Operators must bend over and reach their arms into the deep, cold interior to stack or retrieve plasma bags. Due to the considerable depth of the freezing space and the extremely low temperature inside the freezer, the operation is not only laborious and inefficient, but also prone to causing discomfort to operators due to prolonged exposure to the low-temperature environment. Furthermore, during storage and retrieval, the prolonged opening of the insulation cover leads to the leakage of a large amount of cold air, increasing the energy consumption burden of the refrigeration system and causing temperature fluctuations inside the freezer, thus affecting the storage stability of the plasma.

[0032] This application optimizes the storage and retrieval mechanism based on the traditional horizontal freezer to improve operational convenience and designs auxiliary fixing devices to improve the stacking stability of plasma bags.

[0033] Therefore, some embodiments of this specification propose a plasma freezer. For example... Figure 1 As shown, Figure 1 This is a schematic diagram of the overall structure of a plasma freezer according to some embodiments of this specification. The plasma freezer includes a cabinet body, which includes a housing 10, a door 11, and a base plate 13. A touch panel 12 is installed on the door 11. The housing 10 is fixed to the base plate 13. Four casters are installed on the lower side of the base plate 13. The door 11 is rotatably connected to the housing 10 for closing the housing 10. Figure 1 As shown, Figure 2 This is a schematic diagram of the internal structure of a plasma freezer according to some embodiments of this specification. The plasma freezer further includes: A cryogenic liner is installed inside the cabinet and fixed on the base plate 13. The cabinet 10 covers the cryogenic liner and is used to store and freeze the plasma bags. The upper end of the cryogenic liner is open. An insulation plate is set on the upper side of the freezing inner liner and is driven by a first power source to rise and fall vertically to abut against the upper opening of the freezing inner liner, thereby sealing the freezing inner liner. A second mounting bracket 14 located on one side of the freezing inner liner is fixed on the base plate 13. A limit sensor 15 is fixed on the second mounting bracket 14 to detect the limit position of the insulation plate moving downward. The plasma bag placement component 3 is located on the underside of the insulation plate and fixed thereon, and rises and falls with the insulation plate. Figure 5 As shown, Figure 5This is a schematic diagram of the structure of a plasma bag placement assembly in a plasma freezer according to some embodiments of this specification. The plasma bag placement assembly 3 includes a shell 30, a pressure plate component 32, and a tray component 36. The shell 30 is fixed to an insulation plate. The tray component 36 includes an outer side plate 360, a carrying plate 361, and an inner side plate 3614. Two outer side plates 360 are provided and symmetrically fixed to the insulation plate. Two inner side plates 3614 are symmetrically provided and slidably connected to the two outer side plates 360 respectively. The carrying plate 361 is slidably connected between the two inner side plates 3614. The inner side plates 3614 are driven back and forth by a second power source. The carrying plate 361 can be completely placed on the front side of the freezer inner liner as the inner side plates 3614 move forward, so that plasma can be piled on it. The pressure plate component 32 includes a limiting plate 324, which is driven by a third power source to press down, thereby restricting the plasma bag onto the carrier plate 361.

[0034] Specifically, the plasma freezer also includes a control system and a refrigeration system, which is equipped with a dual-unit compressor and stainless steel evaporation pipes.

[0035] Stainless steel evaporator pipes are coiled inside the insulation lining 21 and close to the inner wall of the freezing chamber. The dual-unit compressor drives the refrigerant to flow within the stainless steel evaporator pipes. Specifically, for example... Figure 3 As shown, Figure 3 This is a cross-sectional view of a plasma freezer according to some embodiments of this specification. The freezer inner liner includes a freezer outer shell 20 and an insulation liner 21. The freezer outer shell 20 is fixed to the base plate 13. The upper end face of the freezer outer shell 20 has a downwardly recessed cavity. The insulation liner 21 is fitted and fixed in the cavity. The upper end face of the insulation liner 21 has a downwardly recessed freezer cavity. When the insulation plate seals the freezer inner liner, the insulation plate abuts against the upper end face of the freezer outer shell 20. The loading plate 361 is located inside the freezer cavity. The cold energy is transferred to the freezing chamber through "direct cooling conduction" (a refrigeration method that uses natural air convection and direct contact conduction to lower the temperature), thereby freezing and preserving the blood plasma inside.

[0036] Specifically, such as Figure 4 , 5 As shown, the insulation board includes a keel 31 and a surface plate 40. The surface plate 40 is covered and fixed on the keel 31. The first power source is a first cylinder 41. There are four first cylinders 41 arranged in a rectangular array. The four first cylinders 41 surround the outside of the freezing inner liner. The upper end of the piston rod of the first cylinder 41 is fixedly connected to the surface plate 40. The lifting and lowering of the insulation board is achieved by the extension and retraction of the first cylinder 41. Two symmetrically arranged connecting plates 34 are fixed on the keel 31. The connecting plates 34 extend upward through the surface plate 40. Two symmetrically arranged horizontal connecting strips 33 are fixed between the two connecting plates 34. The pressure plate component 32 is fixed between the two horizontal connecting strips 33. Two outer side plates 360 are located on the underside of two connecting plates 34 respectively, and several horizontally equidistant vertical connecting strips 35 are fixed between the connecting plates 34 and the outer side plates 360.

[0037] Specifically, such as Figure 5 As shown, the pressure plate component 32 also includes a lifting rod 320 and a first mounting bracket 323. Two first mounting brackets 323 are symmetrically arranged and fixed between two horizontal connecting bars 33. The third power source is a second cylinder 321. Two second cylinders 321 are arranged and fixed on the first mounting brackets 323 respectively. Two lifting rods 320 are arranged and located on the upper side of the two first mounting brackets 323 respectively and fixedly connected to the upper end of the piston rod of the second cylinder 321. Push rods 322 are fixed between both ends of the lifting rod 320 and the limiting plate 324. A pressure sensor is fixed between the lower end of the push rod 322 and the limiting plate 324 to detect the pressure on the limiting plate 324. The push rod 322 passes through the first mounting bracket 323 and is slidably connected to it. The lifting rod 320, the second cylinder 321, the push rod 322 and the first mounting bracket 323 are arranged inside the housing 30.

[0038] Specifically, such as Figures 5-9 As shown, the pallet component 36 also includes a cover 362, a lead screw 364, a push plate 365, a slide plate 367, a lead screw nut 368, and a gantry connecting frame 3613. The cover 362 is fixed to the lower side of the insulation board. The gantry connecting frame 3613 is located below the cover 362 and above the limiting plate 324. The lead screw nut 368 and the lead screw 364 are disposed inside the cover 362. The two ends of the lead screw 364 are rotatably connected to the lower side of the insulation board through bearing seats and are parallel to the moving direction of the loading plate 361. The lead screw nut 368 is threadedly connected to the lead screw 364. The second power source A stepper motor 363 is fixed to the insulation board. The stepper motor 363 is poweredly connected to the lead screw 364 through a transmission gear 3611. The slide plate 367 is fixed to the lower end face of the lead screw nut 368. The push plate 365 is located on the lower side of the cover 362. Two symmetrically arranged connecting parts 3612 are fixed between the push plate 365 and the slide plate 367. Two sliding grooves are opened on the lower side wall of the cover 362 for the connecting parts 3612 to slide. The gantry connecting frame 3613 is fixed on the push plate 365. The two ends of the gantry connecting frame 3613 are bent downward and fixed on the two inner side plates 3614.

[0039] Specifically, guide rods 366 are provided on both sides of the lead screw 364 and are parallel to the lead screw 364. The two ends of the guide rods 366 are fixed to the insulation board through rod seats 3610. A slider 369 is slidably connected to the guide rods 366. The slide plate 367 is fixed to the lead screw nut 368 and the lower end face of the slider 369.

[0040] Specifically, such as Figures 9-11 As shown, the upper edges of the two side walls of the carrying plate 361, parallel to its sliding direction, are horizontally folded to form a first folded edge. A rope end fixing member 371 is fixed on the first folded edge of the carrying plate 361. The upper edge of the inner side plate 3614 is horizontally folded to form a second folded edge. A fixing seat 38 is fixed on the side of the outer side plate 360 ​​near the carrying plate 361. A traction rope 370 is connected between the fixing seat 38 and the rope end fixing member 371. A notch is provided on the second folded edge for the traction rope 370 to slide. The inner side panel 3614 and the outer side panel 360, as well as the two side walls of the carrying plate 361 and the inner side panel 3614, are slidably connected by slide rails 39. The slide rails 39 between the two side walls of the carrying plate 361 and the inner side panel 3614 are inclined downward from back to front. When the inner side panel 3614 moves forward, the carrying plate 361 slides forward along the slide rails 39 on it under the action of gravity.

[0041] Specifically, the second fold of the inner side plate 3614 is fixed with guide wheel frames 373 on both the upper and lower sides. The guide wheel frames 373 on the upper and lower sides form a ">" shape. The end of the guide wheel frame 373 away from the second fold is rotatably connected to a guide wheel 372. The notch on the second fold is located between the guide wheels 372 on the upper and lower sides. The traction rope 370 slides on the second fold through the guidance of the guide wheel 372.

[0042] In practical use, the parameters for plasma freezing are input via the touch panel 12, and the control system located inside the cabinet 10 controls the refrigeration system to precisely control the temperature of the freezing inner liner.

[0043] After the cabinet door 11 is opened, the control system controls the first cylinder 41 to extend, thereby driving the surface plate 40 to move upward. The plasma bag placement assembly 3 then moves upward to the upper side of the frozen outer shell 20. After that, the control system controls the first cylinder 41 to stop, and the surface plate 40 remains stable.

[0044] At this time, the control system controls the stepper motor 363 to rotate, and controls the lead screw 364 to rotate through the transmission gear 3611, thereby driving the lead screw nut 368 to move forward, which in turn drives the slide plate 367 to move forward. Through the connector 3612, the push plate 365 is driven to move forward, which in turn causes the gantry connecting frame 3613 to move forward, and the inner side plate 3614 moves forward accordingly.

[0045] During the forward movement of the inner side plate 3614, the upper part of the traction rope 370 located on the second fold of the inner side plate 3614 is shortened. Since the slide rail 39 on the loading plate 361 is inclined, the loading plate 361 moves forward along the slide rail 39 on it, and the lower part of the traction rope 370 located on the second fold of the inner side plate 3614 is extended. After the stepper motor 363 rotates a certain number of times, it stops. Then the loading plate 361 moves forward until it is completely located in front of the thermal insulation liner 21 and stops, which facilitates the taking / placing of plasma bags on the loading plate 361.

[0046] Then, the control system controls the stepper motor 363 to reverse, so the carrier plate 361 moves backward and resets. After the carrier plate 361 is reset, the control system controls the second cylinder 321 to shorten, which drives the lifting rod 320 to move downward, thereby causing the push rod 322 to move downward, thus pushing the limit plate 324 downward. The pressure sensor on the lower end of the push rod 322 detects that the limit plate 324 is in contact with the plasma bag, so the control system controls the second cylinder 321 to stop, and the limit plate 324 remains in contact with the plasma bag, thereby stably restricting the plasma bag on the carrier plate 361.

[0047] The control system controls the first cylinder 41 to shorten, and the surface plate 40, together with the plasma bag placement component 3, is lowered into the freezing inner liner. After the limit sensor 15 detects that the surface plate 40 is in place, the control system controls the first cylinder 41 to stop, and the carrier plate 361 places the plasma bag in the freezing chamber for freezing and preservation, and closes the cabinet door 11.

[0048] It should be noted that the above description of the system and its modules is for convenience only and should not be construed as limiting this specification to the embodiments described. It is understood that those skilled in the art, after understanding the principles of this system, may arbitrarily combine the various modules without departing from these principles to form subsystems connected to other modules. Alternatively, some modules may be split to obtain more modules or multiple units under a single module. Such modifications are all within the scope of this specification.

[0049] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: 1. The insulation plate is driven by a first power source to lift and lower, thereby covering the freezing inner liner, increasing the insulation performance of the freezing inner liner and improving the freezing storage effect of plasma; 2. The plasma bag placement assembly moves up and down with the lifting and lowering of the insulation plate. After the plasma bag placement assembly moves upward to the upper side of the freezing inner liner, the stepper motor drives the inner side plate to move forward. Due to the inclined setting of the slide rail on the carrier plate, the carrier plate automatically moves forward to the front side of the freezing inner liner as the inner side plate moves forward, thereby facilitating the placement and removal of plasma bags. When the inner side plate moves backward, the carrier plate is pulled backward and reset by the traction rope, so that it can be stored in the freezing inner liner for freezing preservation as the insulation plate descends. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced can be any one or a combination of the above, or any other possible beneficial effects.

[0050] The basic concepts have been described above. It is obvious that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are taught in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

Claims

1. A plasma freezer, comprising a cabinet body, characterized in that, Also includes: A freezing liner, installed inside the cabinet, is used to store and freeze blood plasma bags; the upper end of the freezing liner is open. An insulation plate is disposed on the upper side of the freezing inner liner and is driven by a first power source to rise and fall vertically to abut against the upper opening of the freezing inner liner, thereby sealing the freezing inner liner; The plasma bag placement assembly (3) is fixedly installed on the underside of the insulation plate and moves up and down with the insulation plate. The plasma bag placement assembly (3) includes a pressure plate component (32) and a tray component (36). The tray component (36) includes an outer side plate (360), a carrying plate (361), and an inner side plate (3614). There are two outer side plates (360) and they are symmetrically fixed on the insulation plate. There are two inner side plates (3614) and they are symmetrically arranged and slidably connected to the two outer side plates (360). The carrying plate (361) is slidably connected between the two inner side plates (3614). The inner side plates (3614) are driven back and forth by a second power source. The carrying plate (361) can be completely placed on the front side of the frozen inner liner as the inner side plates (3614) move forward so that plasma can be piled on it. The pressure plate component (32) includes a limiting plate (324), which is driven by a third power source to press down, thereby restricting the plasma bag onto the carrier plate (361).

2. The plasma freezer according to claim 1, characterized in that, The freezing liner includes a freezing shell (20) and an insulation liner (21). The freezing shell (20) is fixed inside the cabinet. The upper surface of the freezing shell (20) has a downwardly recessed cavity. The insulation liner (21) is fitted and fixed inside the cavity. The upper surface of the insulation liner (21) has a downwardly recessed freezing cavity. When the insulation board seals the freezing liner, the insulation board abuts against the upper surface of the freezing shell (20). The loading plate (361) is located inside the freezing cavity.

3. The plasma freezer according to claim 1, characterized in that, The insulation board includes a keel (31) and a surface plate (40). The surface plate (40) is covered and fixed on the keel (31). The first power source is a first cylinder (41). There are four first cylinders (41) arranged in a rectangular array. The four first cylinders (41) surround the outside of the freezing inner liner. The upper end of the piston rod of the first cylinder (41) is fixedly connected to the surface plate (40). The insulation board is raised and lowered by the extension and retraction of the first cylinder (41). Two symmetrically arranged connecting plates (34) are fixed on the keel (31). The connecting plates (34) extend upward through the surface plate (40). Two symmetrically arranged horizontal connecting strips (33) are fixed between the two connecting plates (34). The pressure plate component (32) is fixed between the two horizontal connecting strips (33). The two outer side plates (360) are located on the underside of the two connecting plates (34), and a number of horizontally equidistant vertical connecting strips (35) are fixed between the connecting plates (34) and the outer side plates (360).

4. The plasma freezer according to claim 1, characterized in that, The pressure plate component (32) also includes a lifting rod (320) and a first mounting bracket (323). Two first mounting brackets (323) are symmetrically arranged and fixed between two horizontal connecting strips (33). The third power source is a second cylinder (321). Two second cylinders (321) are arranged and fixed on the first mounting brackets (323) respectively. Two lifting rods (320) are arranged and located on the upper side of the two first mounting brackets (323) respectively and fixedly connected to the upper end of the piston rod of the second cylinder (321). Push rods (322) are fixed between both ends of the lifting rod (320) and the limiting plate (324). The push rods (322) pass through the first mounting bracket (323) and are slidably connected to it.

5. The plasma freezer according to claim 1, characterized in that, The tray component (36) further includes a cover (362), a lead screw (364), a push plate (365), a slide plate (367), a lead screw nut (368), and a gantry connecting frame (3613). The cover (362) is fixed to the lower side of the insulation board. The gantry connecting frame (3613) is located on the lower side of the cover (362) and on the upper side of the limiting plate (324). The lead screw nut (368) and the lead screw (364) are disposed inside the cover (362). The two ends of the lead screw (364) are rotatably connected to the lower side of the insulation board through bearing seats and are parallel to the moving direction of the loading plate (361). The lead screw nut (368) is threadedly connected to the lead screw (364). The second power source is a solid... A stepper motor (363) is fixed on the insulation board. The stepper motor (363) and the lead screw (364) are connected by a transmission gear (3611). The slide plate (367) is fixed on the lower end face of the lead screw nut (368). The push plate (365) is located on the lower side of the cover (362). Two symmetrically arranged connecting pieces (3612) are fixed between the push plate (365) and the slide plate (367). Two sliding grooves for the connecting pieces (3612) to slide are opened on the lower side wall of the cover (362). The gantry connecting frame (3613) is fixed on the push plate (365). The two ends of the gantry connecting frame (3613) are bent downward and fixed on two inner side plates (3614).

6. The plasma freezer according to claim 5, characterized in that, Guide rods (366) are provided on both sides of the lead screw (364) and are parallel to the lead screw (364). The two ends of the guide rods (366) are fixed to the insulation board through rod seats (3610). A slider (369) is slidably connected on the guide rods (366). The slide plate (367) is fixed to the lead screw nut (368) and the lower end face of the slider (369).

7. The plasma freezer according to claim 1, characterized in that, The upper edges of the two side walls of the loading plate (361) parallel to its sliding direction are horizontally folded to form a first folded edge. A rope end fixing member (371) is fixed on the first folded edge of the loading plate (361). The upper edge of the inner side plate (3614) is horizontally folded to form a second folded edge. A fixing seat (38) is fixed on the side of the outer side plate (360) close to the loading plate (361). A traction rope (370) is connected between the fixing seat (38) and the rope end fixing member (371). A notch is provided on the second folded edge for the traction rope (370) to slide. The inner side plate (3614) and the outer side plate (360), as well as the two side walls of the carrying plate (361) and the inner side plate (3614), are slidably connected by slide rails (39). The slide rails (39) between the two side walls of the carrying plate (361) and the inner side plate (3614) are inclined downward from back to front. When the inner side plate (3614) moves forward, the carrying plate (361) slides forward along the slide rails (39) under the action of gravity.

8. The plasma freezer according to claim 7, characterized in that, The inner side plate (3614) has guide wheel frames (373) fixed on both the upper and lower sides of the second fold. The guide wheel frames (373) on the upper and lower sides form a "">" shape. The end of the guide wheel frame (373) away from the second fold is rotatably connected to a guide wheel (372). The notch on the second fold is located between the guide wheels (372) on the upper and lower sides. The traction rope (370) slides on the second fold through the guidance of the guide wheel (372).

Images