Liquid nitrogen tank cryopreservation tube placing device

Abstract

The utility model relates to the technical field of liquid nitrogen tank cryopreservation tubes, in particular to a liquid nitrogen tank cryopreservation tube placing device. Comprising a liquid nitrogen tank body, a movable base is installed on the surface of the bottom end of the liquid nitrogen tank body, a top cover is installed at the upper end of the liquid nitrogen tank body, a storage mechanism is arranged in the liquid nitrogen tank body and comprises a plurality of storage cylinders, and the storage cylinders are fixedly connected with the surface of the inner wall of the liquid nitrogen tank; a bottom plate is slidably connected to the arc surface of the inner wall of the storage barrel, connecting blocks are fixedly connected to the two sides of the bottom plate, connecting grooves are formed in the two sides of the inner wall of the storage barrel, the surfaces of the inner walls of the connecting grooves are slidably connected with the surfaces of the connecting blocks, and supporting rods are fixedly connected to the surface of the bottom plate; and the arc surface of the supporting rod is fixedly connected with a plurality of supporting frames. The liquid nitrogen tank cryopreservation tube placing device has the advantage that cryopreservation test tubes in a liquid nitrogen tank can be conveniently stored and taken.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid nitrogen tank cryopreservation tubes, in particular to a liquid nitrogen tank cryopreservation tube placement device. Background Art

[0002] Cryogenic biological sample banks are important basic equipment for current research in the medical and biological fields. Through low-temperature preservation with liquid nitrogen, biological tissues such as blood, stem cells and immune cells can remain active for a long time. Liquid nitrogen tanks are mainly used in the medical device field to cryogenically preserve biological samples such as blood and stem cells. Liquid nitrogen tanks usually include a tank body and a freezing rack arranged in the tank body. Several freezing boxes for holding samples are placed on the freezing rack.

[0003] The existing document CN218288927U discloses a liquid nitrogen tank sample storage low-temperature protection device, which includes a liquid nitrogen tank, a protection component installed at the upper end of the feed port, an inner liner installed in the inner cavity of the liquid nitrogen tank, and a thermal insulation filler provided on the outer surface of the inner liner. The thermal insulation filler is located between the inner liner and the liquid nitrogen tank and plays a supporting role through a spring. One end of the spring is fixedly connected to the mounting plate, and the mounting plate is rotatably mounted on the rotating shaft. The rotating shaft is installed between the inner wall of the matching plate, and the matching plate is fixedly connected to the special-shaped clamping plate. The special-shaped clamping plate is rotatably mounted on the fixing rod through a sleeve ring, so that the special-shaped clamping plate can be pushed to rotate to the inner ring of the limiting ring with the center of the fixed rod position, thereby limiting the extension rod. A slope is provided on the lower surface of one side of the special-shaped clamping plate. When the extension rod is pulled out, the spring can be tightened to protect the sample when taking the sample and prevent the sample from touching the inner wall of the liquid nitrogen tank.

[0004] During the operation and use of the liquid nitrogen tank, since the frozen test tubes in the prior art are directly stored in the liquid nitrogen tank, the samples are stored and extracted in an open state. This process is carried out at room temperature, so that the samples are without low-temperature protection for a certain period of time, and the samples will freeze and thaw, which will cause damage to the biological samples and even destroy the activity of the biological samples. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that in the prior art, during the operation and use of the liquid nitrogen tank, since the freezing test tubes in the prior art are directly stored in the liquid nitrogen tank, the samples are stored and extracted in an open state, and this process is carried out under a room temperature environment, so that the samples are without low-temperature protection for a certain period of time, and the samples will freeze and thaw, which will cause damage to the biological samples and even destroy the activity of the biological samples.

[0006] In order to solve the above technical problems, the utility model provides a liquid nitrogen tank freezing tube placement device, comprising: a liquid nitrogen tank body, a movable base is installed on the bottom end surface of the liquid nitrogen tank body, a top cover is installed on the upper end of the liquid nitrogen tank body, a storage mechanism is provided inside the liquid nitrogen tank body, the storage mechanism includes a plurality of storage tubes, the plurality of storage tubes are fixedly connected to the inner wall surface of the liquid nitrogen tank, the arc surface of the inner wall of the storage tube is slidably connected to the bottom plate, the two sides of the bottom plate are fixedly connected to the connection block, the inner wall of the storage tube is provided with a connection groove, the inner wall surface of the connection groove is slidably connected to the surface of the connection block, the surface of the bottom plate is fixedly connected to a support rod, the arc surface of the support rod is fixedly connected to a plurality of support frames, and the inner wall of the support frame is plugged with a freezing test tube.

[0007] The effect achieved by the above components is that when storing and taking out the frozen test tubes in the liquid nitrogen tank body, the storage mechanism in the liquid nitrogen tank body can be used for assistance. By lifting and lowering the position of the bottom plate and the support rod in the storage cylinder, it is convenient to move and control the frozen test tubes in the arc surface support frame of the support rod. At this time, the frozen test tubes in the support frame can be effectively taken out and stored.

[0008] Preferably, a positioning plate is fixedly connected to the position of the connecting block on the upper surface of the storage cylinder, and the cross-section of the positioning plate is "L"-shaped. Two moving rods slide through the surface of the positioning plate, and the two moving rods are fixedly connected to the same top block at one end close to the connecting block. The arc surface of the moving rod is covered with a spring, and the two ends of the spring are respectively fixedly connected to the top block and the positioning plate. The spring is a fluororubber spring, and a baffle is fixedly connected to the position of the positioning plate on the surface of the storage cylinder, and the cross-sectional size of the baffle is adapted to the cross-sectional size of the connecting block.

[0009] The effect achieved by the above components is: when the bottom plate drives the support rod and the frozen test tube in the support rod frame to be stretched to the top, the connecting blocks fixed on both sides of the bottom plate can be used to abut against the top block, and at the same time, the tensile force generated by the spring is used to squeeze and fix the position of the top block. At this time, the entire bottom plate can be supported and limited.

[0010] Preferably, the upper end surface of the support rod is rotatably connected to a fixing ring, and the cross section of the fixing ring is vertical.

[0011] The effect achieved by the above components is that when the entire bottom plate and the support plate are stretched, the fixed ring rotating at the upper end of the support rod can be used for auxiliary operation.

[0012] Preferably, the cross-section of the side where the top block and the connecting block are close to each other is arc-shaped, and the top block and the connecting block are hard alloy blocks.

[0013] The effects achieved by the above components are: the top block and the connecting block made of carbide material can be used for a long time, and deformation of the top block and the connecting block is avoided.

[0014] Preferably, a sealing mechanism is provided on the inner wall of the upper end of the liquid nitrogen tank body, and the sealing mechanism includes four slots and a sealing plate. The four slots are opened on the inner wall of the upper end of the liquid nitrogen tank body, and the surface of the sealing plate is fixedly connected with an acrylic plate. The surrounding surfaces of the sealing plate are fixedly connected with plug-in blocks, and the surface of the plug-in block is slidably connected to the inner wall of the slot. Slide grooves are opened on both sides of the inner wall of the slot, and the inner wall of the slot is slidably connected with a counterweight block by means of the slide groove, and the bottom end of the counterweight block abuts against the surface of the sealing plate.

[0015] The effect achieved by the above components is that during the operation of the liquid nitrogen tank body, the storage cylinder inside the liquid nitrogen tank body can be effectively sealed with the help of the sealing mechanism, and the sealing plate is used for auxiliary operation to avoid poor sealing effect between the top cover and the interior of the liquid nitrogen tank body.

[0016] Preferably, all four sides of the sealing plate are rotatably connected to a rotating rod, and the cross section of the rotating rod is "U"-shaped.

[0017] The effect achieved by the above components is that when the sealing plate is moved, an auxiliary pulling operation can be performed with the help of the rotating rod on the surface of the sealing plate.

[0018] Preferably, a plurality of friction grooves are provided on the surface of the counterweight block, and the plurality of friction grooves are evenly distributed on the surface of the counterweight block.

[0019] The effect achieved by the above components is that when the position of the counterweight block is slidably adjusted, the friction can be increased by means of the friction grooves provided on the surface of the counterweight block, thereby facilitating the movement and use of the counterweight block.

[0020] Compared with the related art, the liquid nitrogen tank cryopreservation tube placement device provided by the present invention has the following beneficial effects:

[0021] The utility model provides a liquid nitrogen tank freezing tube placement device, which can assist in storing and taking out the frozen test tubes in the liquid nitrogen tank body with the help of the storage mechanism in the liquid nitrogen tank body, and pull the fixing ring in the storage cylinder to drive the support rod on the entire bottom plate surface and the frozen test tubes in the support frame to rise and fall. In this process, the connecting blocks fixed on both sides of the bottom plate can be abutted against the top block, and the tensile force generated by the spring is used to squeeze and fix the position of the top block. At this time, the entire bottom plate can be supported and limited, and the adjustment device is operated to facilitate the movement and regulation of the frozen test tubes in the support frame on the arc surface of the support rod, so that the frozen test tubes in the support frame can be effectively taken out and stored.

[0022] During the operation and use of the liquid nitrogen tank body, the storage cylinder inside the liquid nitrogen tank body can be effectively sealed with the help of the sealing mechanism, and the sealing plate and the acrylic plate can be fixed. At the same time, the plug-ins fixed on the four surfaces are plugged into the slots opened on the inner wall of the liquid nitrogen tank body, and then the counterweight block is used for abutment and limiting. In this process, the rotating rod on the surface of the sealing plate can be used for auxiliary stretching and movement. By operating the auxiliary device, the auxiliary operation of the sealing plate is achieved, which helps to improve the sealing effect between the top cover and the interior of the liquid nitrogen tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a liquid nitrogen tank cryopreservation tube placement device provided by the utility model;

[0024] Figure 2 for Figure 1 A schematic structural diagram of the storage mechanism shown;

[0025] Figure 3 for Figure 2 Schematic diagram of the disassembled structure of the storage mechanism shown;

[0026] Figure 4 for Figure 1 The structural diagram of the sealing mechanism is shown.

[0027] Numbers in the figure: 1. Liquid nitrogen tank body; 2. Mobile base; 3. Top cover; 4. Storage mechanism; 401. Storage tube; 402. Connecting groove; 403. Bottom plate; 404. Support rod; 405. Support frame; 406. Connecting block; 407. Positioning plate; 408. Spring; 409. Top block; 410. Baffle; 411. Fixed ring; 412. Mobile rod; 5. Sealing mechanism; 51. Sealing plate; 52. Acrylic plate; 53. Counterweight; 54. Friction groove; 55. Rotating rod; 56. Slot; 57. Slide; 58. Insert; 6. Frozen test tube. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0030] See also Figures 1 to 4The present invention provides a device for placing cryotubes in a liquid nitrogen tank, comprising: a liquid nitrogen tank body 1, a movable base 2 being installed on the bottom surface of the liquid nitrogen tank body 1, a top cover 3 being installed on the upper end of the liquid nitrogen tank body 1, a storage mechanism 4 being provided inside the liquid nitrogen tank body 1, and a sealing mechanism 5 being provided on the inner wall of the upper end of the liquid nitrogen tank body 1.

[0031] In the embodiments of the present invention, please refer to Figure 2 and Figure 3 , the storage mechanism 4 includes several storage cylinders 401, several of the storage cylinders 401 are fixedly connected to the inner wall surface of the liquid nitrogen tank, the inner wall arc surface of the storage cylinder 401 is slidably connected to the bottom plate 403, and the two sides of the bottom plate 403 are fixedly connected to the connecting blocks 406, and the inner wall of the storage cylinder 401 is provided with connecting grooves 402 on both sides, and the inner wall surface of the connecting groove 402 is slidably connected to the surface of the connecting block 406, and the surface of the bottom plate 403 is fixedly connected to a support rod 404, and the arc surface of the support rod 404 is fixedly connected to several support frames 405, and the inner wall of the support frame 405 is plugged with a frozen test tube 6, and the upper surface of the storage cylinder 401 is fixedly connected to the position of the connecting block 406, and the cross-section of the positioning plate 407 is "L"-shaped. 7, there are two moving rods 412 slidingly passing through the surface of the two moving rods 412, and one end of the two moving rods 412 close to the connecting block 406 is fixedly connected to the same top block 409, and the arc surface of the moving rod 412 is sleeved with a spring 408, and the two ends of the spring 408 are respectively fixedly connected to the top block 409 and the positioning plate 407, and the spring 408 is a fluororubber spring 408. A baffle 410 is fixedly connected to the position of the positioning plate 407 on the surface of the storage cylinder 401, and the cross-sectional size of the baffle 410 is adapted to the cross-sectional size of the connecting block 406. The upper end surface of the support rod 404 is rotatably connected to a fixing ring 411, and the cross-section of the fixing ring 411 is vertical. The cross-section of the side where the top block 409 and the connecting block 406 are close to each other is arc-shaped, and the top block 409 and the connecting block 406 are carbide blocks;

[0032] In the embodiments of the present invention, please refer to Figure 4The sealing mechanism 5 includes four slots 56 and a sealing plate 51. The four slots 56 are opened on the inner wall of the upper end of the liquid nitrogen tank body 1. The surface of the sealing plate 51 is fixedly connected to an acrylic plate 52. The surrounding surfaces of the sealing plate 51 are fixedly connected to plug blocks 58. The surfaces of the plug blocks 58 are slidably connected to the inner walls of the slots 56. Slide grooves 57 are opened on both sides of the inner wall of the slots 56. The inner wall of the slots 56 is slidably connected to a counterweight 53 by means of the slide grooves 57. The bottom end of the counterweight 53 abuts the surface of the sealing plate 51. The surrounding surfaces of the sealing plate 51 are rotatably connected to a rotating rod 55. The cross-section of the rotating rod 55 is "U"-shaped. The surface of the counterweight 53 is opened with a plurality of friction grooves 54. The friction grooves 54 are evenly distributed on the surface of the counterweight 53.

[0033] The working principle of the liquid nitrogen tank freezing tube placement device provided by the utility model is as follows: when storing and taking out the frozen test tube 6 in the liquid nitrogen tank body 1, the top cover 3 at the upper end of the liquid nitrogen tank body 1 is first opened, and then the interior of the entire liquid nitrogen tank body 1 is opened with the help of the sealing mechanism 5. Then, the fixing ring 411 at the upper end of the support rod 404 in the storage cylinder 401 is pulled, and then the support rod 404 will drive the bottom plate 403 in the storage cylinder 401 and the frozen test tube 6 stored in the support frame 405 to rise and fall. At this time, the cold water test tube in the support frame 405 can be stored and taken out conveniently. In this process, the moving rod 412 sliding on the surface of the positioning plate 407 at the upper end of the storage cylinder 401 can also be pulled to make the top block 409 fixed at one end of the moving rod 412 engage with the connecting blocks 406 on both sides of the bottom plate 403, and at the same time, the baffle 410 is used for protection and fixing. At this time, the frozen test tube 6 can be stored and taken out conveniently and quickly.

[0034] During the operation of the liquid nitrogen tank body 1, the storage cylinder 401 in the liquid nitrogen tank body 1 can be effectively sealed with the help of the sealing mechanism 5. First, the sealing plate 51 is fixed to the acrylic plate 52, and then the plug blocks 58 fixed on the surface of the sealing plate 51 are plugged into the slots 56 opened on the inner wall of the liquid nitrogen tank body 1. Then, the counterweight block 53 is abutted against the surface of the plug block 58 for limiting. During this process, when it is necessary to move and adjust the position of the sealing plate 51, the rotating rod 55 on the surface of the sealing plate 51 can be pulled for auxiliary stretching and movement, thereby effectively assisting the operation of the sealing plate 51, which helps to improve the sealing effect between the top cover 3 and the interior of the liquid nitrogen tank body 1.

[0035] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0036] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A liquid nitrogen tank cryopreservation tube placement device, characterized in that: include: A liquid nitrogen tank body (1) is provided, wherein a movable base (2) is installed on the bottom surface of the liquid nitrogen tank body (1), a top cover (3) is installed on the upper end of the liquid nitrogen tank body (1), a storage mechanism (4) is provided inside the liquid nitrogen tank body (1), and the storage mechanism (4) comprises a plurality of storage cylinders (401), wherein the plurality of storage cylinders (401) are fixedly connected to the inner wall surface of the liquid nitrogen tank, and a bottom plate (403) is slidably connected to the inner wall arc surface of the storage cylinder (401), and the bottom plate (403) is provided on the inner wall arc surface of the storage cylinder (401). Connecting blocks (406) are fixedly connected to both sides of the plate (403), connecting grooves (402) are provided on both sides of the inner wall of the storage cylinder (401), the inner wall surface of the connecting groove (402) is slidably connected to the surface of the connecting block (406), the surface of the bottom plate (403) is fixedly connected to a support rod (404), the arc surface of the support rod (404) is fixedly connected to a plurality of support frames (405), and the inner wall of the support frame (405) is plugged with a frozen test tube (6).

2. A liquid nitrogen tank cryotube placement device according to claim 1, characterized in that: The upper surface of the storage cylinder (401) is fixedly connected to a positioning plate (407) at a position corresponding to the connecting block (406), and the cross-section of the positioning plate (407) is "L"-shaped. Two moving rods (412) slide through the surface of the positioning plate (407), and one end of the two moving rods (412) close to the connecting block (406) is fixedly connected to the same top block (409). The arc surface of the moving rod (412) is covered with a spring (408), and the two ends of the spring (408) are respectively fixedly connected to the top block (409) and the positioning plate (407). The spring (408) is a fluororubber spring (408). The surface of the storage cylinder (401) is fixedly connected to a baffle (410) at a position corresponding to the positioning plate (407), and the cross-sectional size of the baffle (410) is adapted to the cross-sectional size of the connecting block (406).

3. A liquid nitrogen tank cryotube placement device according to claim 1, characterized in that: The upper end surface of the support rod (404) is rotatably connected to a fixing ring (411), and the cross section of the fixing ring (411) is vertical.

4. A liquid nitrogen tank cryotube placement device according to claim 2, characterized in that: The cross-section of one side of the top block (409) and the connecting block (406) close to each other is in an arc shape, and the top block (409) and the connecting block (406) are hard alloy blocks.

5. The liquid nitrogen tank cryotube placement device according to claim 1, characterized in that: The upper inner wall of the liquid nitrogen tank body (1) is provided with a sealing mechanism (5), and the sealing mechanism (5) includes four slots (56) and a sealing plate (51), the four slots (56) are opened on the upper inner wall of the liquid nitrogen tank body (1), the surface of the sealing plate (51) is fixedly connected with an acrylic plate (52), the surrounding surfaces of the sealing plate (51) are fixedly connected with plug blocks (58), the surfaces of the plug blocks (58) are slidably connected to the inner walls of the slots (56), and both sides of the inner wall of the slot (56) are provided with sliding grooves (57), and the inner wall of the slot (56) is slidably connected with a counterweight block (53) by means of the sliding grooves (57), and the bottom end of the counterweight block (53) is in contact with the surface of the sealing plate (51).

6. A liquid nitrogen tank cryotube placement device according to claim 5, characterized in that: The surrounding surfaces of the sealing plate (51) are rotatably connected to a rotating rod (55), and the cross-section of the rotating rod (55) is "U"-shaped.

7. The liquid nitrogen tank cryotube placement device according to claim 5, characterized in that: A plurality of friction grooves (54) are provided on the surface of the counterweight block (53), and the plurality of friction grooves (54) are evenly distributed on the surface of the counterweight block (53).

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