Vaccine freezing bag freezing device

Abstract

The present application relates to a freezing device for vaccine cryopreservation bags, which includes a box containing alcohol, the box is provided with a refrigeration assembly for refrigerating the alcohol in the box, a partition frame is provided in the box, the partition frame is formed with a plurality of accommodating cavities for placing a plurality of cryopreservation bags in a one-to-one correspondence, the accommodating cavities are provided with an upper opening, and the plurality of accommodating cavities are distributed in a horizontal direction, the refrigeration assembly includes a plurality of refrigeration coils with refrigerant flowing therein, the refrigeration coils are embedded in the partition frame, and a refrigeration coil is provided between two adjacent accommodating cavities. The present application can improve the freezing effect of the vaccine stock solution during storage.

Description

Technical Field

[0001] The present application relates to the field of vaccine freezing, and in particular to a freezing device for vaccine cryopreservation bags. Background Art

[0002] Nowadays, in order to maintain the activity of vaccines during storage and transportation, vaccines need to be kept in a low temperature environment. At the same time, some vaccines need to be frozen during storage.

[0003] Therefore, when the vaccine stock solution is frozen, it is filled into a freezing bag and placed inside a refrigerator. In order to reduce the possibility of damage to the freezing bag during storage, the freezing bag is usually wrapped with a cover. However, during the freezing process, multiple freezing bags are often placed in the same refrigerator at the same time. At this time, the covers on adjacent freezing bags will contact each other, which makes it easy for multiple freezing bags to affect each other, resulting in uneven cooling of the freezing bags, which in turn leads to poor freezing effect of the vaccine stock solution. Summary of the invention

[0004] In order to improve the freezing effect of vaccine stock solution during storage, the present application provides a vaccine freezing bag freezing device.

[0005] The present application provides a vaccine freezing bag freezing device that adopts the following technical solution:

[0006] A freezing device for vaccine cryopreservation bags comprises a box body containing alcohol, the box body being provided with a refrigeration assembly for cooling the alcohol in the box body, a partition frame being provided in the box body, the partition frame being formed with a plurality of accommodating cavities for respectively placing a plurality of cryopreservation bags in a one-to-one correspondence, the accommodating cavities being open at the top, and the plurality of accommodating cavities being distributed in a horizontal direction, the refrigeration assembly comprising a plurality of refrigeration coils with a refrigerant flowing therein, the refrigeration coils being embedded in the partition frame, and a refrigeration coil being provided between each of two adjacent accommodating cavities.

[0007] By adopting the above technical solution, when in use, the freezing bag containing the vaccine concentrate is placed in the containing cavity, and then the alcohol in the box is refrigerated by the refrigeration component, so that the vaccine concentrate soaked in the alcohol is frozen. At this time, multiple refrigeration coils can make the alcohol in different containing cavities have a better cooling effect, and at this time the alcohol can completely cover the freezing bag, increase the cooling area of ​​the freezing bag, and thus make the vaccine concentrate relatively uniform during freezing, thereby improving the freezing effect of the vaccine concentrate during storage.

[0008] Optionally, the box body is provided with a circulation component, which includes an infusion tube, both ends of which are connected to the inner cavity of the box body through the bottom and top of the box body respectively. The circulation component also includes a circulation pump for driving the liquid in the infusion tube to flow to the top of the box body, and the circulation pump is installed on the infusion tube.

[0009] By adopting the above technical scheme, the circulating pump can gradually absorb the alcohol at the bottom of the box into the infusion tube, and guide the alcohol back into the box from the top of the box through the infusion tube, and merge with the alcohol in the box again, thereby stirring the alcohol in the box, making the alcohol in the box mix more evenly when cold, thereby increasing the uniformity of the alcohol when freezing the vaccine concentrate, so that the effect of the vaccine concentrate during storage is better.

[0010] Optionally, a guide channel is formed inside the partition frame, one end of the infusion tube located at the top of the box body is connected to the guide channel, and the partition frame is provided with a plurality of liquid spraying ports that connect the guide channel with the inner cavity of the box body.

[0011] By adopting the above technical solution, multiple liquid spray ports enable the alcohol to be fused with the alcohol in the box from multiple positions when the alcohol is at the top of the box, thereby further increasing the uniformity of alcohol fusion.

[0012] Optionally, a holding bottom plate for placing cryobags is provided in the accommodating cavity, and the box body is provided with a plurality of lifting assemblies, and the plurality of lifting assemblies are respectively and one by one arranged in the plurality of accommodating cavities, and the lifting assemblies include a chain, a sprocket and a driving motor, the driving motor is installed on the box body, the sprocket is connected to the output end of the driving motor, the sprocket is arranged on the side wall of the accommodating cavity, the chain is engaged with the sprocket, and the chain extends vertically into the interior of the accommodating cavity and is fixedly connected to the holding bottom plate.

[0013] By adopting the above technical solution, when the cryopreservation bag needs to be placed in the containing chamber, it is only necessary to place the cryopreservation bag on the containing bottom plate first, and then control the rotation of the sprocket by the driving motor, thereby driving the chain to slide, so as to gradually extend the chain to the bottom of the containing chamber, so as to control the containing bottom plate to gradually sink to the bottom of the containing chamber, and completely immerse the cryopreservation bag in the alcohol, so that there is no need to hold the cover to completely extend the cover into the alcohol, thereby ensuring that the vaccine concentrate has a hinged freezing effect while reducing the possibility of hands touching the frozen alcohol and reducing the possibility of frostbite on the hands.

[0014] Optionally, a receiving groove for embedding a cover shell covering the freezing bag is formed at the upper end of the containing base plate, and a clamping assembly is arranged at the edge of the containing groove, and the clamping assembly includes a swing rod, and the swing rod is provided with a rotating shaft for rotatably connecting it to the side wall of the containing groove, and a clamping joint is formed at the movable end of the swing rod, and the clamping joint is located on the side of the swing rod facing the containing groove, and the clamping assembly also includes a control torsion spring for driving the swing rod to rotate toward one side of the containing groove, and the control torsion spring is coaxially sleeved on the rotating shaft, and the two ends of the control torsion spring are respectively fixedly connected to the swing rod and the containing base plate.

[0015] By adopting the above technical solution, when in use, the cover shell provided with a fixing groove for clamping with the clamping joint can be inserted into the accommodating groove, and the clamping joint on the swing arm is driven by the control torsion spring to tightly clamp the cover shell, thereby locking the cover shell in the accommodating groove of the containing base plate, so that the cover shell and the containing base plate are used in combination, and then when the containing base plate is controlled to sink to the bottom of the accommodating cavity by the lifting assembly, the cover shell is not easy to separate from the containing base plate, thereby reducing the possibility of the cover shell swinging and increasing the stability of the cover shell sinking.

[0016] Optionally, the swing rod is connected to a control rod for driving it to rotate, and the control rod is located on the side of the swing rod away from the accommodating groove. The control rod is provided with a return spring, and the two ends of the return spring are respectively connected to the control rod and the containing bottom plate, and the partition frame is fixedly connected with a touch column for pushing the control rod to swing.

[0017] By adopting the above technical solution, when it is necessary to take out the vaccine concentrate and control the rising of the containing base plate, the touch column can push the control rod to rotate, and then the control rod controls the swing rod to rotate away from the receiving groove, thereby releasing the restriction of the cover shell by the card joint. When the containing base plate slides to the top of the partition frame, it is convenient to remove the cover shell from the containing base plate. When the containing base plate is then lowered, the control rod can be reset by the action of the reset spring so that it can be used normally afterwards.

[0018] Optionally, the control rod is rotatably connected to a rotating shaft, and a transmission member is provided on the rotating shaft, and the transmission member includes an inner ratchet and a pawl meshing with the inner ratchet, the inner ratchet is coaxially sleeved on the rotating shaft and fixedly connected to the swing rod, the pawl is rotatably connected to the control rod, and the control rod is provided with a spring for keeping the pawl in abutment with the teeth on the inner ratchet, the containing bottom plate is formed with a guide portion for guiding the pawl to rotate in a direction of disengaging from the inner ratchet, the inner ratchet is provided with an ejection member, and the ejection member is arranged at the bottom of the accommodating groove, the ejection member includes a first push rod, a second push rod and a push rod, one end of the first push rod is hinged to the bottom wall of the accommodating groove, two ends of the second push rod are respectively hinged to the first push rod and the push rod, the push rod is penetrated and slidably connected to the containing bottom plate, and the inner ratchet is fixedly connected with an abutment column for pushing the push rod to slide.

[0019] By adopting the above technical solution, when the control rod rotates, the pawl on the control rod will push the inner ratchet to rotate, thereby controlling the swing rod to rotate in the direction away from the receiving groove, thereby releasing the restriction of the card joint on the cover shell; at the same time, after the inner ratchet rotates, the abutment column on the inner ratchet can touch the push rod and push the push rod to slide, thereby pushing the second push rod and the first push rod to rotate in the same direction through the push rod, thereby controlling the facing ends of the first push rod and the second push rod to protrude in the direction away from the bottom wall of the receiving groove, thereby pushing out the cover shell placed in the receiving groove, thereby facilitating the taking of the vaccine concentrate; subsequently, the pawl is guided by the guide part to gradually disengage from the inner ratchet, thereby releasing the restriction on the inner ratchet, so that the swing rod can be reset under the action of the control torsion spring, and because the positioning groove on the cover shell in the receiving groove is misaligned with the card joint at this time, it is not easy for the card joint to clamp the cover shell, thereby the cover shell can be smoothly taken out of the receiving groove, and the card joint can normally clamp the cover shell subsequently inserted into the receiving groove in subsequent use, thereby making it relatively convenient to place and take the cover shell in the receiving groove.

[0020] Optionally, the push rod is provided with a positioning piece, which includes a snap-on ball head and a push spring. The snap-on ball head is passed through and slidably connected to the push rod along a direction perpendicular to the sliding movement of the push rod. The two ends of the push spring are respectively fixedly connected to the push rod and the snap-on ball head. The containing bottom plate is provided with a plurality of positioning grooves for snapping with the snap-on ball head.

[0021] By adopting the above technical solution, after the push rod pushes the first push rod and the second push rod to rotate toward each other, the locking ball head is acted upon by the push spring, and the locking ball head can be locked in the positioning groove, thereby reducing the possibility of slippage of the push rod. Therefore, when the subsequent inner ratchet is reset by the control torsion spring, the push rod is not easy to slide, thereby keeping the cover shell in the pushed out state.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] When in use, a cryopreservation bag containing vaccine stock solution is placed in the containing chamber, and then the alcohol in the box is refrigerated by the refrigeration component, so that the vaccine stock solution immersed in the alcohol is frozen. At this time, multiple refrigeration coils can make the alcohol in different containing chambers have a better refrigeration effect, and the alcohol can completely cover the cryopreservation bag at this time, increasing the cooling area of ​​the cryopreservation bag, thereby making the vaccine stock solution relatively uniform during freezing, and improving the freezing effect of the vaccine stock solution during storage;

[0024] The circulation component installed in the box enables the circulation pump to gradually absorb the alcohol at the bottom of the box into the infusion tube, and guide the alcohol back into the box from the top of the box to merge with the alcohol in the box again, thereby stirring the alcohol in the box, making the alcohol in the box mix more evenly when it is cold, thereby increasing the uniformity of the alcohol when freezing the vaccine concentrate, thereby making the vaccine concentrate more effective during storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the structure of Example 1 of the present application;

[0026] Figure 2 It is a partial cross-sectional structural schematic diagram of the box body of Example 1 of the present application;

[0027] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of part A;

[0028] Figure 4 It is a partial cross-sectional structural schematic diagram of the box body of Example 2 of the present application;

[0029] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure of part B;

[0030] Figure 6 yes Figure 4 A schematic diagram of the enlarged structure of the middle C part;

[0031] Figure 7 It is a partial cross-sectional structural schematic diagram of the holding bottom plate of Example 2 of the present application;

[0032] Figure 8 is a partial cross-sectional structural schematic diagram of a transmission member in Example 2 of the present application;

[0033] Fig. 9 yes Figure 8 A schematic diagram of the enlarged structure of the D part;

[0034] Fig.10 yes Figure 8 A schematic diagram of the enlarged structure of part E in the middle;

[0035] Fig.11 yes Figure 8 Schematic diagram of the enlarged structure of part F.

[0036] Description of reference numerals: 1, box body; 2, refrigeration assembly; 21, refrigeration coil; 3, partition frame; 31, accommodating chamber; 32, guide channel; 321, liquid spray port; 4, circulation assembly; 41, infusion tube; 42, circulation pump; 5, lifting assembly; 51, chain; 52, sprocket; 53, driving motor; 6, receiving bottom plate; 61, accommodating groove; 62, clamping part; 7, clamping assembly; 71, swing rod; 711, rotating shaft; 7 12. Card joint; 72. Control torsion spring; 73. Control rod; 731. Return spring; 732. Drive rod; 733. Sleeve; 74. Touch column; 8. Transmission member; 81. Inner ratchet; 82. Ratchet; 821. Guide; 9. Push member; 91. First push rod; 92. Second push rod; 93. Push rod; 94. Abutment column; 95. Positioning member; 951. Card ball head; 952. Push spring; 953. Positioning groove. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-11 This application is described in further detail.

[0038] The embodiment of the present application discloses a freezing device for vaccine cryopreservation bags.

[0039] Embodiment 1:

[0040] Reference Figure 1 and Figure 2 A vaccine freezing bag freezing device includes a box body 1, which is hollow inside and has an upper opening, and the inner cavity of the box body 1 is filled with alcohol. A partition frame 3 is installed inside the box body 1, and the partition frame 3 is formed with a plurality of accommodating cavities 31, and the accommodating cavities 31 are opened at the top, so that the covers of a plurality of freezing bags can be inserted into the plurality of accommodating cavities 31 one by one. The box body 1 is provided with a refrigeration component 2, and the refrigeration component 2 includes a refrigeration coil 21 connected to a compressor, and a refrigerant flows inside the refrigeration coil 21. The refrigeration coil 21 is embedded in the partition frame 3, and a refrigeration coil 21 is provided between two adjacent accommodating cavities 31, so that the refrigeration coil 21 can contact with the alcohol in the box body 1.

[0041] When in use, a cryopreservation bag containing vaccine concentrate is placed in the accommodating chamber 31, and then the alcohol in the box body 1 is refrigerated by the refrigeration component 2, so that the alcohol is used as a medium for energy transfer, and the vaccine concentrate immersed in the alcohol is frozen. At this time, the alcohol can completely cover the cryopreservation bag, increase the cooling area of ​​the cryopreservation bag, and make the vaccine concentrate relatively uniform during freezing. In addition, multiple cryopreservation bags are placed in different areas to reduce the possibility of mutual interference with adjacent cryopreservation bags during freezing.

[0042] Reference Figure 2 and Figure 3When alcohol is cooled by the refrigeration coil 21, there is a certain temperature difference between the liquid inlet and liquid outlet of the refrigerant in the refrigeration coil 21, which may cause the alcohol to be cooled unevenly. Therefore, in this embodiment, the box body 1 is provided with a circulation component 4. A guide channel 32 is formed inside the top of the partition frame 3, and a plurality of liquid spray ports 321 are provided on the side wall of the guide channel 32 to connect the guide channel 32 with the inner cavity of the box body 1. The circulation component 4 includes an infusion tube 41, one end of which is connected to the inside of the box body 1 from the bottom of the box body 1, and the other end of the infusion tube 41 extends from the top of the box body 1 into the inside of the box body 1 and is connected to the guide channel 32; the circulation component 4 also includes a circulation pump 42 connected to the infusion tube 41.

[0043] When in use, the circulating pump 42 can gradually absorb the alcohol at the bottom of the box 1 into the infusion tube 41, and guide the alcohol into the guide channel 32 at the top of the partition frame 3 through the infusion tube 41, and then discharge it back into the box 1 through the spray port 321, and merge with the alcohol in the box 1 again, thereby stirring the alcohol in the box 1, making the alcohol in the box 1 more evenly mixed when cold, thereby increasing the uniformity of the alcohol when freezing the vaccine concentrate, so that the effect of the vaccine concentrate during storage is better.

[0044] The implementation principle of Example 1 is: when in use, the cryopreservation bag containing the vaccine concentrate is placed in the accommodating chamber 31, and then the alcohol in the box 1 is refrigerated by the refrigeration component 2, so that the vaccine concentrate soaked in the alcohol is frozen, and at this time the alcohol can completely cover the cryopreservation bag, increase the cooling area of ​​the cryopreservation bag, and thus make the vaccine concentrate relatively uniform during freezing.

[0045] Subsequently, the circulating pump 42 can gradually absorb the alcohol at the bottom of the box 1 into the infusion tube 41, and guide the alcohol into the guide channel 32 at the top of the partition frame 3 through the infusion tube 41, and then discharge it back into the box 1 through the spray port 321, and merge with the alcohol in the box 1 again, thereby stirring the alcohol in the box 1, making the alcohol in the box 1 more evenly mixed when it is cold, thereby increasing the uniformity of the alcohol when freezing the vaccine concentrate, so that the vaccine concentrate has a better effect during storage.

[0046] Embodiment 2:

[0047] Reference Figure 4 and Figure 5The difference between this embodiment and the embodiment 1 is that a bottom plate 6 is provided in each accommodating cavity 31. The box body 1 is provided with a plurality of lifting assemblies 5, which are respectively provided in the plurality of accommodating cavities 31 in a one-to-one correspondence. The lifting assemblies 5 include a chain 51, a sprocket 52 and a driving motor 53. The driving motor 53 is installed in the box body 1. The sprocket 52 is connected to the output end of the driving motor 53, so that the sprocket 52 is controlled to rotate by the driving motor 53. The chain 51 is meshed with the sprocket 52, and the chain 51 extends vertically into the accommodating cavity 31. The chain 51 is clamped and slidably connected to the partition frame 3. At the same time, when the chain 51 is rolled up, it can be accommodated inside the side wall of the box body 1.

[0048] Reference Figure 6 The receiving bottom plate 6 is fixedly connected to the lower end of the chain 51 , and a clamping portion 62 extends from the receiving bottom plate 6 toward the side of the chain 51 away from the receiving bottom plate 6 , and the clamping portion 62 is clamped and slidably connected to the side wall of the box body 1 .

[0049] An accommodating groove 61 is formed on the upper end surface of the containing bottom plate 6 , and a plurality of clamping components 7 are arranged at the edge of the accommodating groove 61 .

[0050] When the cryopreservation bag needs to be placed in the accommodating chamber 31, it is only necessary to first clamp the cover shell mounted on the cryopreservation bag in the accommodating groove 61, and fix the cover shell to the containing base plate 6 by the clamping assembly 7, and then control the sprocket 52 to rotate by the driving motor 53, thereby driving the chain 51 to slide, so as to gradually extend the chain 51 to the bottom of the accommodating chamber 31, so as to control the containing base plate 6 to gradually sink to the bottom of the accommodating chamber 31, and completely immerse the cryopreservation bag in the alcohol, so that there is no need to hold the cover shell by hand to completely extend the cover shell into the alcohol, so as to ensure that the vaccine concentrate has a better freezing effect while reducing the possibility of hands touching the frozen alcohol and reducing the possibility of frostbite on the hands.

[0051] At the same time, during the sliding of the chain 51, the partition frame 3 can restrict the chain 51, reduce the possibility of bending of the chain 51, and thereby improve the stability of the chain 51 during sliding, so that when the chain 51 descends, an additional thrust is applied to the containing base plate 6, thereby making the containing base plate 6 descend more smoothly, and when in use, it is only necessary to set the chain 51 as an open-loop structure, thereby reducing the cost; and, during the sliding of the containing base plate 6, the clamping portion 62 on the containing base plate 6 can slide relative to the side wall of the box body 1, thereby balancing the torque of the containing base plate 6 during sliding, and increasing the stability of the containing base plate 6 during sliding.

[0052] Reference Figure 7 , Figure 8 and Fig. 9The clamping assembly 7 includes a swinging rod 71 and a control torsion spring 72. The swinging rod 71 is provided with a rotating shaft 711. The rotating shaft 711 is fixedly connected to the receiving bottom plate 6, and the rotating shaft 711 extends horizontally, so that the swinging rod 71 is rotatably connected to the side wall of the receiving groove 61. A clamping joint 712 is formed at the movable end of the swinging rod 71. The clamping joint 712 is located on the side of the swinging rod 71 facing the receiving groove 61, and the upper end of the clamping joint 712 is formed as an inclined surface inclined toward the bottom of the receiving groove 61.

[0053] The swing lever 71 is provided with a control lever 73, which is also rotatably connected to the rotating shaft 711. The rotating shaft 711 is provided with a transmission member 8, which includes an inner ratchet 81 and a pawl 82 meshing with the inner ratchet 81. The inner ratchet 81 is coaxially sleeved on the rotating shaft 711 and fixedly connected to the swing lever 71. The control torsion spring 72 is coaxially sleeved on the rotating shaft 711, and the two ends of the control torsion spring 72 are respectively fixedly connected to the inner ratchet 81 and the rotating shaft 711. The pawl 82 is rotatably connected to the control lever 73, and the control lever 73 is fixed with a spring capable of driving the pawl 82 to keep in contact with the inner ratchet 81. The receiving bottom plate 6 is formed with a guide portion 821, so that the guide portion 821 can guide the pawl 82, so that when the pawl 82 rotates relative to the rotating shaft 711, it can be guided by the guide portion 821 to gradually separate from the inner ratchet 81, thereby releasing the restriction on the inner ratchet 81.

[0054] Reference Fig.10 , a touch column 74 is fixedly connected to the top of the partition frame 3. In this embodiment, the control rod 73 is sleeved and slidably connected with a sleeve 733, and the sleeve 733 is hinged with a driving rod 732. The driving rod 732 is vertically penetrated and slidably connected to the receiving bottom plate 6, and the driving rod 732 is located directly below the touch column 74. The control rod 73 is provided with a return spring 731, which is sleeved on the driving rod 732, and the two ends of the return spring 731 are respectively fixedly connected to the driving rod 732 and the receiving bottom plate 6.

[0055] Reference Figure 8 A push piece 9 is provided at the bottom of the accommodating groove 61, and the push piece 9 includes a first push rod 91, a second push rod 92 and a push rod 93. One end of the first push rod 91 is hinged to the bottom wall of the accommodating groove 61, and both ends of the second push rod 92 are respectively hinged to the first push rod 91 and the push rod 93. The push rod 93 is penetrated and slidably connected to the containing bottom plate 6, and the side wall of the inner ratchet 81 is fixedly connected to abutment column 94.

[0056] When in use, the cover shell with a fixing groove for engaging with the clamping joint 712 can be inserted into the receiving groove 61. The clamping joint 712 on the swing rod 71 is driven by the control torsion spring 72 to tightly clamp the cover shell, thereby locking the cover shell in the receiving groove 61 of the receiving bottom plate 6, so that the cover shell and the receiving bottom plate 6 can be used together. Then, when the receiving bottom plate 6 is controlled by the lifting assembly 5 to sink to the bottom of the receiving cavity 31, the cover shell is not easy to separate from the receiving bottom plate 6, thereby reducing the possibility of the cover shell swinging and increasing the stability of the cover shell sinking.

[0057] When the vaccine stock solution needs to be taken out and the holding bottom plate 6 is controlled to rise, the contact column 74 can abut against the driving rod 732, and then the driving rod 732 can push the control rod 73 to rotate, and at this time the sleeve 733 will slide relative to the control rod 73, thereby reducing the possibility of the rotation of the control rod 73 being blocked. Then the ratchet 82 on the control rod 73 will push the inner ratchet 81 to rotate, thereby controlling the swing rod 71 to rotate away from the receiving groove 61, thereby releasing the restriction of the clamping joint 712 on the cover shell; at the same time, after the inner ratchet 81 rotates, the contact column 94 on the inner ratchet 81 can touch the push rod 93 and push the push rod 93 to slide, thereby pushing the second push rod 92 and the first push rod 91 to rotate in the opposite direction through the push rod 93, thereby controlling the opposite ends of the first push rod 91 and the second push rod 92 to protrude in the direction away from the bottom wall of the receiving groove 61, thereby pushing out the cover shell placed in the receiving groove 61, thereby facilitating the taking of the vaccine stock solution.

[0058] Subsequently, the pawl 82 is guided by the guide portion 821 to gradually disengage from the inner ratchet 81, thereby releasing the restriction on the inner ratchet 81, so that the swing rod 71 can be reset under the action of the control torsion spring 72, and because the positioning groove on the cover shell in the accommodating groove 61 is misaligned with the clamping joint 712 at this time, it is difficult for the clamping joint 712 to clamp the cover shell, and the cover shell can be smoothly taken out of the accommodating groove 61; and, when the cover shell is inserted into the accommodating groove 61 again, the swing rod 71 can clamp the cover shell normally, and then when the bottom plate 6 is lowered, it is affected by the reset spring 731, and the control rod 73 and the pawl 82 can be reset, so that they can be used normally later.

[0059] Reference Fig.11The push rod 93 is provided with a positioning member 95, which includes a snap-on ball head 951 and a push spring 952. The snap-on ball head 951 is inserted in a direction perpendicular to the sliding movement of the push rod 93 and is slidably connected to the push rod 93. The two ends of the push spring 952 are respectively fixedly connected to the push rod 93 and the snap-on ball head 951. The receiving bottom plate 6 is provided with a positioning groove 953. After the push rod 93 pushes the first push rod 91 and the second push rod 92 to rotate toward each other, the snap-on ball head 951 is acted upon by the push spring 952, and the snap-on ball head 951 can be snapped into the positioning groove 953, thereby reducing the possibility of the push rod 93 sliding. When the inner ratchet 81 is subsequently reset by the control torsion spring 72, the push rod 93 is not likely to slide, thereby keeping the cover in the pushed-out state.

[0060] The implementation principle of Example 2 is as follows: when in use, the cover shell with a fixing groove for engaging with the clamping joint 712 is inserted into the receiving groove 61, and the clamping joint 712 on the swing rod 71 can tightly clamp the cover shell, thereby locking the cover shell in the receiving groove 61 of the receiving bottom plate 6, so that the cover shell and the receiving bottom plate 6 are used in conjunction with each other. Then, the driving motor 53 is turned on to control the receiving bottom plate 6 to sink to the bottom of the receiving chamber 31, so that there is no need to hold the cover shell to fully extend the cover shell into the alcohol, thereby reducing the possibility of the hand touching the frozen alcohol and reducing the possibility of frostbite on the hand; and when the cover shell sinks, it is not easy to separate from the receiving bottom plate 6, which increases the stability of the cover shell sinking.

[0061] When the vaccine stock solution needs to be taken out and the holding bottom plate 6 is controlled to rise, the touch column 74 will abut against the driving rod 732, and then the driving rod 732 pushes the control rod 73 to rotate, and the pawl 82 on the control rod 73 will push the inner ratchet 81 to rotate, thereby controlling the swing rod 71 to rotate in the direction away from the receiving groove 61, thereby releasing the restriction of the clamping joint 712 on the cover. At the same time, after the inner ratchet 81 rotates, the abutment column 94 on the inner ratchet 81 can touch the push rod 93 and push the push rod 93 to slide, thereby pushing the second push rod 92 and the first push rod 91 to rotate in the opposite direction through the push rod 93, thereby controlling the facing ends of the first push rod 91 and the second push rod 92 to protrude in the direction away from the bottom wall of the receiving groove 61. Then the clamping ball head 951 is acted upon by the push spring 952, and the clamping ball head 951 can be clamped in the positioning groove 953, thereby pushing out the cover placed in the receiving groove 61, thereby facilitating the taking of the vaccine stock solution.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vaccine freezing bag freezing device, characterized in that: The invention comprises a box (1) containing alcohol, the box (1) being provided with a refrigeration assembly (2) for refrigerating the alcohol in the box (1), a partition frame (3) being provided in the box (1), the partition frame (3) being formed with a plurality of accommodating cavities (31) for accommodating a plurality of freezing bags in a one-to-one correspondence, the accommodating cavities (31) being arranged with an upper opening, and the plurality of accommodating cavities (31) being distributed in a horizontal direction, the refrigeration assembly (2) comprising a plurality of refrigeration coils (21) with a refrigerant flowing therein, the refrigeration coils (21) being embedded in the partition frame (3), and a refrigeration coil (21) being provided between two adjacent accommodating cavities (31); A receiving bottom plate (6) for placing a cryopreservation bag is arranged in the receiving cavity (31); a receiving groove (61) for embedding a cover shell covering the cryopreservation bag is provided at the upper end of the receiving bottom plate (6); a clamping assembly (7) is arranged at the edge of the receiving groove (61); the clamping assembly (7) comprises a swinging rod (71); the swinging rod (71) is provided with a rotating shaft (711) for enabling the swinging rod (71) to be rotatably connected to the side wall of the receiving groove (61); a clamping joint (712) is formed at the movable end of the swinging rod (71); The clamping joint (712) is located on a side of the swinging rod (71) facing the receiving groove (61). The clamping assembly (7) further comprises a control torsion spring (72) for driving the swinging rod (71) to rotate toward the side of the receiving groove (61). The control torsion spring (72) is coaxially sleeved on the rotating shaft (711), and two ends of the control torsion spring (72) are respectively fixedly connected to the swinging rod (71) and the receiving bottom plate (6). The upper end of the clamping joint (712) is formed into an inclined surface inclined toward the bottom of the receiving groove (61). The swing rod (71) is connected to a control rod (73) for driving the swing rod to rotate. The control rod (73) is located on a side of the swing rod (71) away from the receiving groove (61). The control rod (73) is provided with a return spring (731). The two ends of the return spring (731) are respectively connected to the control rod (73) and the receiving bottom plate (6). The partition frame (3) is fixedly connected to a touch column (74) for driving the control rod (73) to swing.

2. A vaccine freezing bag freezing device according to claim 1, characterized in that: The box body (1) is provided with a circulation assembly (4), the circulation assembly (4) comprising a liquid infusion tube (41), the two ends of the liquid infusion tube (41) being connected to the inner cavity of the box body (1) via the bottom and the top of the box body (1), respectively; the circulation assembly (4) further comprising a circulation pump (42) for driving the liquid in the liquid infusion tube (41) to flow toward the top of the box body (1), the circulation pump (42) being mounted on the liquid infusion tube (41).

3. A vaccine freezing bag freezing device according to claim 2, characterized in that: A guide channel (32) is formed inside the partition frame (3); one end of the infusion tube (41) located at the top of the box body (1) is connected to the guide channel (32); the partition frame (3) is provided with a plurality of liquid spraying ports (321) for connecting the guide channel (32) with the inner cavity of the box body (1); the circulation pump (42) can gradually absorb alcohol at the bottom of the box body (1) into the infusion tube (41), and guide the alcohol into the guide channel (32) at the top of the partition frame (3) through the infusion tube (41), and then discharge the alcohol back into the box body (1) through the liquid spraying ports (321) to merge with the alcohol in the box body (1) again.

4. A vaccine freezing bag freezing device according to claim 1, characterized in that: The box body (1) is provided with a plurality of lifting assemblies (5), and the plurality of lifting assemblies (5) are respectively arranged in a one-to-one correspondence in a plurality of accommodating chambers (31). The lifting assemblies (5) comprise a chain (51), a sprocket (52) and a driving motor (53). The driving motor (53) is mounted on the box body (1), the sprocket (52) is connected to an output end of the driving motor (53), the sprocket (52) is arranged on a side wall of the accommodating chamber (31), the chain (51) is meshed with the sprocket (52), and the chain (51) extends vertically into the interior of the accommodating chamber (31) and is fixedly connected to the containing bottom plate (6).

5. A vaccine freezing bag freezing device according to claim 4, characterized in that: The control rod (73) is rotatably connected to the rotating shaft (711), and a transmission member (8) is provided on the rotating shaft (711). The transmission member (8) comprises an inner ratchet (81) and a pawl (82) meshing with the inner ratchet (81). The inner ratchet (81) is coaxially sleeved on the rotating shaft (711) and fixedly connected to the swing rod (71). The pawl (82) is rotatably connected to the control rod (73), and the control rod (73) is provided with a spring for keeping the pawl (82) in contact with teeth on the inner ratchet (81). The receiving bottom plate (6) is formed with a spring for guiding the pawl (82) to disengage from the inner ratchet (81). The inner ratchet (81) is provided with a push-out member (9), the push-out member (9) is arranged at the bottom of the accommodating groove (61), the push-out member (9) comprises a first push rod (91), a second push rod (92) and a push rod (93), one end of the first push rod (91) is hinged to the bottom wall of the accommodating groove (61), the two ends of the second push rod (92) are respectively hinged to the first push rod (91) and the push rod (93), the push rod (93) is penetrated and slidably connected to the containing bottom plate (6), and the inner ratchet (81) is fixedly connected to an abutment column (94) for pushing the push rod (93) to slide.

6. A vaccine freezing bag freezing device according to claim 5, characterized in that: The push rod (93) is provided with a positioning member (95), and the positioning member (95) comprises a snap-fit ​​ball head (951) and a push spring (952). The snap-fit ​​ball head (951) is penetrated along a direction perpendicular to the sliding movement of the push rod (93) and is slidably connected to the push rod (93). The two ends of the push spring (952) are respectively fixedly connected to the push rod (93) and the snap-fit ​​ball head (951). The receiving bottom plate (6) is provided with a plurality of positioning grooves (953) for snapping with the snap-fit ​​ball head (951).

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