Linkage type liquid nitrogen tank

Abstract

The utility model relates to the technical field of biological sample storage, in particular to a linkage type liquid nitrogen container which comprises a liquid nitrogen container body, a container cover and a storing and taking mechanism, and the storing and taking mechanism comprises a mounting frame, an electric push rod, a mounting base, a rotating disc, a driving assembly and a connecting arm. After the to-be-stored and taken cryopreservation frame is rotated to the bottom of the tank cover and the tank cover is opened, the electric push rod is started, the hook is driven to descend through the connecting arm, and after a user hangs the end of the hook on the hanging ring of the corresponding cryopreservation frame outside the liquid nitrogen tank body, the electric push rod is started to drive the cryopreservation frame to be stored and taken out. After the cryopreservation frame on the hook is driven by the connecting arm to ascend to the position above the liquid nitrogen tank body, the driving assembly is started, the rotating disc is driven by the driven tooth part to rotate on the mounting base, a user can store and take the cryopreservation frame outside the liquid nitrogen tank body, and by means of the structure, the user can be prevented from being hurt by the low-temperature environment.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sample storage, in particular to a linkage type liquid nitrogen tank. Background Art

[0002] The cryogenic biological sample library is an important basic equipment for current research in the medical and biological fields. Through the low-temperature preservation of liquid nitrogen, biological tissues such as blood, stem cells and immune cells can remain active for a long time. In the existing technology, the extracted biological samples are stored in cryogenic tubes, and then the cryogenic tubes are stored in cryogenic boxes; the cryogenic boxes are then placed in cryogenic racks, and the cryogenic racks are placed in liquid nitrogen tanks for storage.

[0003] When storing freezing racks in existing liquid nitrogen tanks, it is necessary to use a rotating mechanism provided on the liquid nitrogen tank to drive the freezing rack to be stored and accessed to rotate to the tank mouth, and then the user opens the tank cover and manually completes the storage and access of the freezing rack.

[0004] However, the structure of the existing liquid nitrogen tank is relatively simple. When users access the freezing rack, they need to put their hands into the tank body at the tank mouth to complete the access to the freezing rack. The low temperature environment at the tank mouth may cause harm to the users. Utility Model Content

[0005] The utility model aims to provide a linkage type liquid nitrogen tank, aiming to solve the technical problem that the structure of the existing liquid nitrogen tank is relatively simple, when the user needs to put his hand into the inside of the tank body at the tank mouth to complete the access to the freezing rack, and the low temperature environment at the tank mouth may cause harm to the user.

[0006] To achieve the above-mentioned purpose, the utility model provides a linkage type liquid nitrogen tank, comprising a liquid nitrogen tank body, a tank cover and a storage and access mechanism, wherein the tank cover is arranged at the top end of the liquid nitrogen tank body;

[0007] The storage and retrieval mechanism includes a mounting frame, an electric push rod, a mounting seat, a rotating disk, a driving assembly, a connecting arm and a hook. The mounting frame is mounted on the bottom of the outer side wall of the liquid nitrogen tank body, the electric push rod is arranged on the mounting frame, the mounting seat is arranged at the output end of the electric push rod, the rotating disk is arranged on the upper surface of the mounting seat, a driven tooth portion is arranged on a side of the rotating disk located inside the mounting seat, the driving assembly is arranged inside the mounting seat, the output end of the driving assembly is mechanically transmitted with the driven tooth portion, one end of the connecting arm is detachably connected to the upper surface of the rotating disk, the bottom of the other end of the connecting arm is hinged with the hook, and the end of the hook away from the connecting arm corresponds to the hanging ring on the freezing rack.

[0008] Among them, the rotating disk includes a disk body and a gear ring, the upper surface of the mounting seat is provided with a groove, a rotating bearing is provided at the end of the groove, the gear ring is fixedly provided at the bottom of the disk body, the gear ring is embedded in the rotating bearing, and the driven tooth portion is provided on the inner side wall of the gear ring.

[0009] Wherein, the driving assembly includes a driving motor, a gear reduction box and an output gear, the driving motor is installed inside the groove, the output end of the driving motor is provided with the gear reduction box, the output end of the gear reduction box is provided with the output gear, and the output gear is meshed with the driven tooth portion.

[0010] Among them, a fixed wing ring is arranged on one side of the gear ring close to the disc body, and the fixed wing ring is detachably connected to the disc body. A plurality of mounting holes are arranged on the edge of one side of the disc body close to the mounting seat, and balls are arranged inside the mounting holes.

[0011] Wherein, the mounting frame includes an arc-shaped fixing block and a mounting plate, the arc-shaped fixing block is connected to the outer side wall of the liquid nitrogen tank body, the mounting plate is fixedly provided on a side of the arc-shaped fixing block away from the liquid nitrogen tank body, and the electric push rod is installed on the mounting plate.

[0012] Wherein, the linkage type liquid nitrogen tank further comprises a heat sink, the heat sink is arranged on the outer side wall of the mounting seat, a heat sink is arranged on the heat sink, and the heat sink corresponds to the driving motor.

[0013] Wherein, one end of the heat dissipation plate extending to the outside of the mounting seat is provided with a placement groove, the placement groove passes through the heat dissipation groove, and a filter is provided inside the placement groove.

[0014] The utility model discloses a linkage type liquid nitrogen tank, when a user accesses a freezing rack, the user utilizes the rotating mechanism provided on the liquid nitrogen tank body to rotate the freezing rack to be accessed to the bottom of the tank cover, and after opening the tank cover, the user starts the electric push rod, drives the hook to descend through the connecting arm, and after the user hangs the end of the hook on the corresponding hanging ring of the freezing rack outside the liquid nitrogen tank body, starts the electric push rod, drives the freezing rack on the hook to rise to the top of the liquid nitrogen tank body through the connecting arm, and then starts the driving component, drives the rotating disk to rotate on the mounting seat through the driven gear part, and then drives the freezing rack on the hook to rotate to the outside of the liquid nitrogen tank body through the connecting arm, and the user can complete the access of the freezing rack outside the liquid nitrogen tank body. With the above structure, the user does not need to put his hand into the interior of the liquid nitrogen tank body when accessing the freezing rack, so as to avoid the low temperature environment causing harm to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a linkage type liquid nitrogen tank according to the first embodiment of the utility model.

[0017] Figure 2 It is a schematic diagram of the split structure of the rotating disk and the mounting seat in the first embodiment of the utility model.

[0018] Figure 3 The utility model provides Figure 2 A magnified view of the local structure at A.

[0019] Figure 4 It is a structural schematic diagram of the mounting base in the second embodiment of the utility model.

[0020] 101-liquid nitrogen tank body, 102-tank cover, 103-mounting frame, 104-electric push rod, 105-mounting seat, 106-rotating disk, 107-driving assembly, 108-connecting arm, 109-disk body, 110-gear ring, 111-driving motor, 112-gear reduction box, 113-output gear, 114-arc-shaped fixing block, 115-mounting plate, 116-hook, 117-driven gear part, 118-groove, 119-rotating bearing, 120-fixed wing ring, 121-mounting hole, 122-ball, 201-heat sink, 202-heat sink, 203-placement groove, 204-filter. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] First embodiment:

[0023] See also Figures 1 to 3 ,in Figure 1 is a schematic structural diagram of a linkage type liquid nitrogen tank according to the first embodiment, Figure 2 is a schematic diagram of the split structure of the rotating disk and the mounting seat in the first embodiment, Figure 3 yes Figure 2A magnified view of the local structure at A.

[0024] The utility model provides a linkage type liquid nitrogen tank: including a liquid nitrogen tank body 101, a tank cover 102 and a storage and access mechanism, the storage and access mechanism includes a mounting frame 103, an electric push rod 104, a mounting seat 105, a rotating disk 106, a driving assembly 107, a connecting arm 108 and a hook 116, the rotating disk 106 includes a disk body 109 and a gear ring 110, the driving assembly 107 includes a driving motor 111, a gear reduction box 112 and an output gear 113, and the mounting frame 103 includes an arc-shaped fixed block 114 and a mounting plate 115. The above-mentioned solution solves the problem that the structure of the existing liquid nitrogen tank is relatively simple, and when the user accesses the freezing rack, the freezing rack needs to be accessed at the tank mouth, and the low temperature environment at the tank mouth may cause harm to the user. It can be understood that the above-mentioned solution can be used in the structure of the liquid nitrogen tank in the deep cryogenic biological sample library.

[0025] According to this specific embodiment, the top of the liquid nitrogen tank body 101 is provided with the tank cover 102, the mounting frame 103 is installed at the bottom of the outer wall of the liquid nitrogen tank body 101, the mounting frame 103 is provided with the electric push rod 104, the output end of the electric push rod 104 is provided with the mounting seat 105, the upper surface of the mounting seat 105 is provided with the rotating disk 106, and the side of the rotating disk 106 located inside the mounting seat 105 is provided with a driven tooth portion 117, and the mounting The drive assembly 107 is arranged inside the mounting seat 105, and the output end of the drive assembly 107 is mechanically transmitted with the driven gear portion 117. One end of the connecting arm 108 is detachably connected to the upper surface of the rotating disk 106, and the bottom of the other end of the connecting arm 108 is hingedly provided with the hook 116. The end of the hook 116 away from the connecting arm 108 corresponds to the hanging ring on the freezing rack. When the user accesses the freezing rack, the rotating mechanism provided on the liquid nitrogen tank body 101 is used. The cryopreservation rack to be accessed is rotated to the bottom of the tank cover 102, and after the tank cover 102 is opened, the electric push rod 104 is started, and the hook 116 is driven to descend through the connecting arm 108. After the user hangs the end of the hook 116 on the corresponding hanging ring of the cryopreservation rack outside the liquid nitrogen tank body 101, the electric push rod 104 is started, and the cryopreservation rack on the hook 116 is driven to rise to the top of the liquid nitrogen tank body 101 through the connecting arm 108, and then the electric push rod 104 is started. The driving assembly 107 drives the rotating disk 106 to rotate on the mounting seat 105 through the driven gear portion 117, and then drives the freezing rack on the hook 116 to rotate to the outside of the liquid nitrogen tank body 101 through the connecting arm 108. The user can complete the storage and retrieval of the freezing rack outside the liquid nitrogen tank body 101. With the above structure, the user does not need to put his hand into the interior of the liquid nitrogen tank body 101 when storing and retrieving the freezing rack, so as to avoid the low temperature environment causing harm to the user.

[0026] Among them, a groove 118 is provided on the upper surface of the mounting seat 105, and a rotating bearing 119 is provided at the end of the groove 118. The gear ring 110 is fixedly provided at the bottom of the disk body 109, and the gear ring 110 is embedded in the rotating bearing 119. The driven tooth portion 117 is provided on the inner side wall of the gear ring 110. Through the setting of the rotating bearing 119, the rotating disk 106 rotates more smoothly when rotating on the mounting seat 105.

[0027] Secondly, the driving motor 111 is installed inside the groove 118, and the output end of the driving motor 111 is provided with the gear reduction box 112, and the output end of the gear reduction box 112 is provided with the output gear 113, and the output gear 113 is meshed with the driven tooth portion 117. The driving motor 111 is started, and the output speed is slowed down by the gear reduction box 112, and the output gear 113 is driven to rotate. Since the output gear 113 is meshed with the driven tooth portion 117, the rotating disk 106 is driven to rotate on the mounting seat 105.

[0028] At the same time, a fixed wing ring 120 is provided on one side of the gear ring 110 close to the disk body 109, and the fixed wing ring 120 is detachably connected to the disk body 109. A plurality of mounting holes 121 are provided at the edge of one side of the disk body 109 close to the mounting seat 105. Balls 122 are provided inside the mounting holes 121. The fixed wing ring 120 is fixed to the disk body 109 by screws, thereby completing the installation of the gear ring 110. Through the setting of the ball 122, the rotating disk 106 rotates more smoothly when rotating on the mounting seat 105.

[0029] In addition, the arc-shaped fixing block 114 is connected to the outer side wall of the liquid nitrogen tank body 101, and the mounting plate 115 is fixedly provided on one side of the arc-shaped fixing block 114 away from the liquid nitrogen tank body 101, and the electric push rod 104 is installed on the mounting plate 115. Since the mounting plate 115 is fixedly connected to the arc-shaped fixing block 114, when preparing the mounting frame 103, an integrated molding technology is adopted, and the structure is more solid.

[0030] When using a linkage type liquid nitrogen tank of the present embodiment, when the user accesses the freezing rack, the user uses the rotating mechanism provided on the liquid nitrogen tank body 101 to rotate the freezing rack to be accessed to the bottom of the tank cover 102, and after opening the tank cover 102, the electric push rod 104 is started, and the hook 116 is driven to descend through the connecting arm 108. After the user hangs the end of the hook 116 on the corresponding hanging ring of the freezing rack outside the liquid nitrogen tank body 101, the user starts the electric push rod 104, and after the freezing rack on the hook 116 is driven to rise to the top of the liquid nitrogen tank body 101 through the connecting arm 108, the electric push rod 104 is started. The driving motor 111, after using the gear reduction box 112 to slow down the output speed, drives the output gear 113 to rotate. Since the output gear 113 is meshed with the driven tooth portion 117, the rotating disk 106 is driven to rotate on the mounting seat 105. Then, the freezing rack on the hook 116 is driven to rotate to the outside of the liquid nitrogen tank body 101 through the connecting arm 108. The user can complete the storage and retrieval of the freezing rack outside the liquid nitrogen tank body 101. With the above structure, the user does not need to put his hand into the interior of the liquid nitrogen tank body 101 when storing and retrieving the freezing rack, so as to avoid the low temperature environment causing harm to the user.

[0031] Second embodiment:

[0032] Based on the first embodiment, please refer to Figure 4 , Figure 4 It is a schematic diagram of the structure of the mounting base in the second embodiment.

[0033] The utility model provides a linkage type liquid nitrogen tank which also includes a heat dissipation plate 201 .

[0034] According to this specific embodiment, the heat sink 201 is provided on the outer wall of the mounting seat 105, and the heat sink 201 is provided with a heat sink 202, and the heat sink 202 corresponds to the drive motor 111. Through the setting of the heat sink 201 and the heat sink 202, the interior of the mounting seat 105 is kept in circulation with the outside air, so that the heat generated by the drive motor 111 during operation is taken away by the flowing air, thereby dissipating the heat of the drive motor 111.

[0035] Among them, a placement groove 203 is provided at one end of the heat dissipation plate 201 extending to the outside of the mounting base 105, and the placement groove 203 passes through the heat dissipation groove 202. A filter screen 204 is provided inside the placement groove 203. Through the setting of the filter screen 204, dust in the air is filtered to prevent excessive dust from entering the interior of the mounting base 105 through the heat dissipation groove 202.

[0036] When a linkage type liquid nitrogen tank of the present embodiment is used, the heat sink 201 and the heat sink 202 are arranged so that the interior of the mounting seat 105 is kept in circulation with the outside air, so that the heat generated by the driving motor 111 when working is taken away by the flowing air, and the driving motor 111 is cooled. In addition, the filter 204 is arranged to filter dust in the air, so as to prevent excessive dust from entering the interior of the mounting seat 105 through the heat sink 202.

[0037] What is disclosed above is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A linkage type liquid nitrogen tank, comprising a liquid nitrogen tank body and a tank cover, wherein the tank cover is arranged on the top of the liquid nitrogen tank body, characterized in that: It also includes deposit and access institutions; The storage and retrieval mechanism includes a mounting frame, an electric push rod, a mounting seat, a rotating disk, a driving assembly, a connecting arm and a hook. The mounting frame is mounted on the bottom of the outer side wall of the liquid nitrogen tank body, the electric push rod is arranged on the mounting frame, the mounting seat is arranged at the output end of the electric push rod, the rotating disk is arranged on the upper surface of the mounting seat, a driven tooth portion is arranged on a side of the rotating disk located inside the mounting seat, the driving assembly is arranged inside the mounting seat, the output end of the driving assembly is mechanically transmitted with the driven tooth portion, one end of the connecting arm is detachably connected to the upper surface of the rotating disk, the bottom of the other end of the connecting arm is hinged with the hook, and the end of the hook away from the connecting arm corresponds to the hanging ring on the freezing rack.

2. The linkage type liquid nitrogen tank according to claim 1, characterized in that: The rotating disk includes a disk body and a gear ring. The upper surface of the mounting seat is provided with a groove, a rotating bearing is provided at the end of the groove, the gear ring is fixedly provided at the bottom of the disk body, the gear ring is embedded in the rotating bearing, and the driven tooth portion is provided on the inner side wall of the gear ring.

3. The linkage type liquid nitrogen tank according to claim 2, characterized in that: The driving assembly includes a driving motor, a gear reduction box and an output gear. The driving motor is installed inside the groove. The output end of the driving motor is provided with the gear reduction box. The output end of the gear reduction box is provided with the output gear, and the output gear is meshed with the driven tooth portion.

4. The linkage type liquid nitrogen tank according to claim 3, characterized in that: A fixed wing ring is arranged on one side of the gear ring close to the disc body, and the fixed wing ring is detachably connected to the disc body. A plurality of mounting holes are arranged on the edge of one side of the disc body close to the mounting seat, and balls are arranged inside the mounting holes.

5. The linkage type liquid nitrogen tank according to claim 1, characterized in that: The mounting frame includes an arc-shaped fixing block and a mounting plate, wherein the arc-shaped fixing block is connected to the outer side wall of the liquid nitrogen tank body, the mounting plate is fixedly provided on a side of the arc-shaped fixing block away from the liquid nitrogen tank body, and the electric push rod is mounted on the mounting plate.

6. The linkage type liquid nitrogen tank according to claim 3, characterized in that: The linkage type liquid nitrogen tank further comprises a heat sink, the heat sink is arranged on the outer side wall of the mounting seat, the heat sink is arranged with a heat sink groove, and the heat sink groove corresponds to the driving motor.

7. The linkage type liquid nitrogen tank according to claim 6, characterized in that: One end of the heat sink extending to the outside of the mounting seat is provided with a placement groove, the placement groove penetrates the heat sink, and a filter is provided inside the placement groove.

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