Cold storage bracket

Abstract

The utility model discloses a cold storage bracket, which comprises a plurality of cold storage trays, a plurality of cold storage trays and a plurality of cold storage trays, the cold storage frames are arranged at the bottoms of the corresponding cold storage trays and used for cooling the cold storage trays; the snakelike cold accumulation pipe is arranged in the cold accumulation frame, and telescopic heat preservation pipes are arranged at the ends of the snakelike cold accumulation pipe; the liquid nitrogen box is communicated with the snakelike cold storage pipe through a telescopic thermal insulation pipe and supplies a refrigerant to the snakelike cold storage pipe; the water removal mechanism is arranged in the cold storage frame, matched with the snakelike cold storage pipe and used for cleaning condensate water on the outer surface of the snakelike cold storage pipe, the water removal mechanism comprises a scraping plate arranged on the snakelike cold storage pipe, a through groove matched with the snakelike cold storage pipe is formed in the scraping plate, a movable ring is arranged at the other end of a spring, and the movable ring is connected with the snakelike cold storage pipe. And an elastic cleaning ring for cleaning condensed water at the upper elbow part of the snake-shaped cold storage pipe is arranged in the movable ring. According to the utility model, condensed water formed on the cold storage bracket is cleaned, and the cold storage bracket and a sample are prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of programmed cooling device technology, and in particular to a cold storage bracket. Background Technology

[0002] The working principle of a programmed cooling instrument is based on the cooperation of a control system and a temperature sensor. Programmed cooling instruments are widely used in the low-temperature preservation of samples such as cells and tissues. These instruments gradually freeze the samples in a suitable low-temperature environment by precisely controlling the cooling rate, so as to maintain the biological activity of the samples to the greatest extent.

[0003] The prior art discloses a refrigerant handling rack (201822206356.7), which includes a frame and movable brackets. The movable brackets are movably installed on the frame. By setting multiple movable brackets on the frame, the refrigerant is suspended on the movable brackets, which makes the pre-cooling and release of the refrigerant more complete, reduces the operation time when the refrigerant is replaced on site, and improves the site utilization rate. However, there are still the following shortcomings: when the sample is placed on the refrigerant rack and the refrigerant rack is directly exposed to liquid nitrogen, the water vapor on the rack forms condensate and adheres, causing damage to the sample and the refrigerant rack.

[0004] Therefore, a cold storage bracket was proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a cold storage tray that can clean the condensate formed on the cold storage tray and prevent damage to the cold storage tray and the sample.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a cold storage bracket, comprising:

[0007] Multiple cold storage trays are used to hold samples;

[0008] A cold storage rack is installed at the bottom of the corresponding cold storage tray to cool the cold storage tray.

[0009] A serpentine cold storage tube is installed inside the cold storage rack, and each end of the serpentine cold storage tube is equipped with a telescopic insulation tube;

[0010] The liquid nitrogen tank is connected to the serpentine cold storage pipe via a telescopic insulated pipe, which supplies it with refrigerant.

[0011] A water removal mechanism is installed inside the cold storage rack and is adapted to the serpentine cold storage tube to clean the condensate on the outer surface of the serpentine cold storage tube.

[0012] Furthermore, the water removal mechanism includes a scraper disposed on the serpentine cold storage tube, the scraper having a through groove adapted to the serpentine cold storage tube, and a scraper ring for cleaning condensate on the serpentine cold storage tube installed in the through groove.

[0013] Furthermore, the dewatering mechanism also includes springs disposed on both sides of the scraper and sleeved on the serpentine cold storage tube. The other end of the spring is provided with a movable ring, and the movable ring is provided with an elastic cleaning ring for cleaning the condensate at the bend of the serpentine cold storage tube.

[0014] Furthermore, the water removal mechanism also includes a drive unit for driving the scraper to scrape off the condensate on the surface of the serpentine cold storage tube;

[0015] The drive unit output is equipped with a lead screw that is threadedly connected to the scraper.

[0016] Furthermore, the serpentine cold storage tube includes a heat-conducting outer tube, a temperature control section, a cold storage medium filling body, and an inner tube. The temperature control section is located between the heat-conducting outer tube and the cold storage medium filling body, and the inner tube is located inside the cold storage medium filling body.

[0017] The temperature control unit includes a high-precision temperature sensor and a miniature heating element.

[0018] Furthermore, the cold storage rack is equipped with a circulation pump, the outlet pipe of which extends into the programmed cooling instrument, and the cold storage rack is provided with ventilation holes.

[0019] The cold storage rack is equipped with a hose for draining condensate, and the hose extends to the outside of the programmed cooling instrument.

[0020] The beneficial effects of this utility model are reflected in:

[0021] This invention utilizes liquid nitrogen from a liquid nitrogen tank, which circulates through a telescopic insulated tube into a serpentine cold storage tube to cool the cold storage rack and tray. During the cooling process, condensation forms on the outer surface of the serpentine cold storage tube. A drive element rotates a lead screw, which in turn moves a scraper across the outer surface of the tube. The scraper cleans the condensation from the straight sections of the tube, while the scraper moves a spring and a movable ring to the bend. The scraper compresses the spring and movable ring, causing the spring to rotate along the bend. An elastic cleaning ring on the movable ring then cleans the condensation from the bend. The water is then drained through a hose on the cold storage rack. A circulation pump circulates the gas within the cold storage rack and the programmed cooling instrument, effectively cleaning the condensation on the cold storage tray and preventing damage to the tray and samples. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a perspective view of the cold storage rack and liquid nitrogen tank of this utility model;

[0024] Figure 3 This is a perspective view of the cold storage rack and serpentine cold storage tube of this utility model;

[0025] Figure 4 This is a three-dimensional sectional view of the cold storage rack and serpentine cold storage tube of this utility model;

[0026] Figure 5 This is a perspective view of the serpentine cold storage tube and water removal mechanism of this utility model;

[0027] Figure 6 For the present utility model Figure 5 A magnified view of part A shown in the diagram.

[0028] In the picture:

[0029] 1. Cold storage tray;

[0030] 2. Cold storage rack;

[0031] 3. Programmable cooling instrument;

[0032] 4. Liquid nitrogen tank;

[0033] 5. Serpentine cold storage tube; 51. Heat-conducting outer tube; 52. Temperature control unit; 53. Cold storage medium filling body; 54. Inner tube;

[0034] 6. Telescopic insulation pipe;

[0035] 7. Water removal mechanism; 71. Scraper; 72. Scraper ring; 73. Spring; 74. Movable ring; 75. Elastic cleaning ring; 76. Lead screw; 77. Drive unit. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0037] Please see Figure 1-6 This utility model discloses a cold storage bracket, comprising:

[0038] Multiple cold storage trays 1 are used to hold samples. Multiple cold storage trays 1 are movably set inside the programmed cooling instrument 3. The programmed cooling instrument 3 is used to protect the cold storage trays 1, samples and cold storage rack 2. The bottom of the programmed cooling instrument 3 is equipped with a base to support the programmed cooling instrument 3 and liquid nitrogen tank 4.

[0039] The cold storage rack 2 is set at the bottom of the corresponding cold storage tray 1 to cool the cold storage tray 1. The cold storage rack 2 is used to support and cool the cold storage tray 1. The cold storage rack 2 is installed in the program cooling instrument 3 through guide rails and sliders to remove the cold storage rack 2 and the cold storage tray 1 from the program cooling instrument 3.

[0040] The serpentine cold storage tube 5 is installed inside the cold storage rack 2. Each end of the serpentine cold storage tube 5 is equipped with a telescopic insulation tube 6. The telescopic insulation tube 6 is used to compensate for the length defect when the cold storage rack 2 extends out of the programmed cooling instrument 3. The serpentine cold storage tube 5 is used to circulate liquid nitrogen to cool the cold storage rack 2 and the cold storage tray 1. The outer surface of the insulation telescopic tube 6 is used to prevent condensation.

[0041] The liquid nitrogen tank 4 is connected to the serpentine cold storage pipe 5 through the telescopic insulation pipe 6, which supplies it with refrigerant. The liquid nitrogen tank 4 is used to store liquid nitrogen 4. The liquid nitrogen tank 4 and the serpentine cold storage pipe 5 circulate liquid nitrogen through the telescopic insulation pipe 6.

[0042] The water removal mechanism 7 is installed inside the cold storage rack 2 and is adapted to the serpentine cold storage tube 5 to clean the condensate on the outer surface of the serpentine cold storage tube 5.

[0043] During use, the liquid nitrogen inside the liquid nitrogen tank 4 circulates through the telescopic insulation tube 6 within the serpentine cold storage tube 5, cooling the cold storage rack 2 and the cold storage tray 1, as well as the space inside the programmed cooling instrument 3. The air inside the programmed cooling instrument 3 is cooled by passing through the serpentine cold storage tube 5, and the water vapor in the air forms condensate that adheres to the outer surface of the serpentine cold storage tube 5. The condensate on the serpentine cold storage tube 5 is cleaned by the dehydration mechanism 7 to prevent damage to the cold storage rack and the sample.

[0044] In a specific embodiment, the water removal mechanism 7 includes a scraper 71 disposed on the serpentine cold storage tube 5. The scraper 71 has a through groove adapted to the serpentine cold storage tube 5. A scraper ring 72 for cleaning condensate on the serpentine cold storage tube 5 is installed in the through groove. The scraper 71 slides in the cold storage rack 2. The scraper 71 drives the scraper ring 72 to clean the condensate on the outer surface of the straight section of the serpentine cold storage tube 5.

[0045] In one embodiment, the dewatering mechanism 7 further includes springs 73 disposed on both sides of the scraper 71 and sleeved on the serpentine cold storage tube 5. The other end of the spring 73 is provided with a movable ring 74. The movable ring 74 is provided with an elastic cleaning ring 75 for cleaning the condensate at the bend of the serpentine cold storage tube 5. The scraper 71 is used to drive the spring 73, the movable ring 74 and the elastic cleaning ring 75 to move along the bend of the serpentine cold storage tube 5. The elastic cleaning ring 75 adapts to the diameter change at the bend and cleans the condensate on the outer surface of the bend of the serpentine cold storage tube 5.

[0046] In a specific embodiment, the water removal mechanism 7 also includes a drive unit 77, which drives the scraper 71 to scrape off the condensate on the surface of the serpentine cold storage tube 5.

[0047] The drive unit 77 outputs a lead screw 76 that is threadedly connected to the scraper 71. The drive unit 77 drives the lead screw 76 to rotate, and the lead screw 76 drives the scraper 71 to move within the cold storage rack 2 and on the outer surface of the serpentine cold storage tube 5 to clean the condensate on the outer surface of the serpentine cold storage tube 5.

[0048] In one embodiment, the serpentine cold storage tube 5 includes a heat-conducting outer tube 51, a temperature control unit 52, a cold storage medium filling body 53, and an inner tube 54. The temperature control unit 52 is located between the heat-conducting outer tube 51 and the cold storage medium filling body 53, and the inner tube 54 is located inside the cold storage medium filling body 53. The heat-conducting outer tube 51 is made of a metal material with a high thermal conductivity, and the metal material is a copper alloy. Its function is to uniformly and quickly transfer the cold energy on the cold storage medium filling body 53 to the cold storage rack 2 and the cold storage tray 1, so that all parts of the cold storage rack 2 and the cold storage tray 1 can be cooled uniformly.

[0049] The temperature control unit 52 includes a high-precision temperature sensor and a miniature heating element. The temperature sensor monitors the temperature around the cold storage rack in real time. When the temperature is lower than the set cooling rate range, the miniature heating element is automatically activated to perform micro-heating to fine-tune the temperature and ensure that the cooling process strictly follows the preset program. This prevents the serpentine cold storage tube 5 from causing a sudden drop in the internal temperature of the programmed cooling instrument 3 and prevents damage to the sample.

[0050] In a specific embodiment, a circulation pump is provided inside the cold storage rack 2, and the outlet pipe of the circulation pump extends into the programmed cooling instrument 3. A vent is provided on the cold storage rack 2. The circulation pump is used to ensure the air flow between the cold storage rack 2 and the programmed cooling instrument 3, so as to cool the cold storage tray 1.

[0051] The cold storage rack 2 is equipped with a hose for draining condensate, and the hose extends to the outside of the programmed cooling instrument 3 to drain the cleaning water.

[0052] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] Additionally, "multiple" refers to two or more.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold storage bracket, characterized in that, include: Multiple cold storage trays (1) are used to hold samples; A cold storage rack (2) is set at the bottom of the corresponding cold storage tray (1) to cool the cold storage tray (1); A serpentine cold storage tube (5) is installed inside the cold storage rack (2), and each end of the serpentine cold storage tube (5) is provided with a telescopic insulation tube (6); The liquid nitrogen tank (4) is connected to the serpentine cold storage pipe (5) through the telescopic insulation pipe (6) to supply it with refrigerant; A water removal mechanism (7) is installed inside the cold storage rack (2) and is adapted to the serpentine cold storage tube (5) to clean the condensate on the outer surface of the serpentine cold storage tube (5).

2. The cold storage bracket according to claim 1, characterized in that: The water removal mechanism (7) includes a scraper (71) disposed on the serpentine cold storage tube (5). The scraper (71) has a through groove adapted to the serpentine cold storage tube (5). A scraper ring (72) for cleaning condensate on the serpentine cold storage tube (5) is installed in the through groove.

3. The cold storage bracket according to claim 2, characterized in that: The dewatering mechanism (7) also includes springs (73) arranged on both sides of the scraper (71) and sleeved on the serpentine cold storage tube (5). The other end of the spring (73) is provided with a movable ring (74). The movable ring (74) is provided with an elastic cleaning ring (75) for cleaning the condensate on the bend of the serpentine cold storage tube (5).

4. The cold storage bracket according to claim 2, characterized in that: The water removal mechanism (7) also includes a drive unit (77) for driving the scraper (71) to scrape off the condensate on the surface of the serpentine cold storage tube (5); The drive unit (77) outputs a lead screw (76) that is threadedly connected to the scraper (71).

5. The cold storage bracket according to claim 1, characterized in that: The serpentine cold storage tube (5) includes a heat-conducting outer tube (51), a temperature control section (52), a cold storage medium filling body (53), and an inner tube (54). The temperature control section (52) is located between the heat-conducting outer tube (51) and the cold storage medium filling body (53), and the inner tube (54) is located inside the cold storage medium filling body (53). The temperature control unit (52) includes a high-precision temperature sensor and a miniature heating element.

6. The cold storage bracket according to claim 1, characterized in that: The cold storage rack (2) is equipped with a circulation pump, the outlet pipe of the circulation pump extends into the programmable cooling instrument (3), and the cold storage rack (2) is provided with a vent hole. The cold storage rack (2) is equipped with a hose for draining condensate, and the hose extends to the outside of the programmed cooling instrument (3).

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