Drawer assembly and blood refrigerated cabinet

Abstract

The utility model relates to a drawer assembly which comprises a drawer and a cover plate. A first storage area used for storing blood samples and a second storage area used for storing blood bags are formed in the drawer, and an opening used for taking the blood samples from the first storage area is formed in the drawer. The cover plate is installed at the position of the opening in a matched mode so as to control opening and closing of the opening. The first storage area and the second storage area are arranged in the drawer, blood and a blood bag are stored separately, meanwhile, the drawer is provided with the opening and the cover plate, when a cross fit test needs to be carried out, only the cover plate needs to be opened, a blood sample is taken out from the sampling opening, a section of the blood sample is cut off, then the remaining blood sample is put back, and the cover plate is covered. In the whole process, an operator does not contact the blood bag, so that blood temperature change and artificial vibration caused by hand contact are avoided, the service life of blood is prevented from being affected, the frequency of artificial contact with the blood bag can be reduced, transmission pollution is avoided, the quality of the blood is better protected, and the effective storage time is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of blood refrigeration, in particular to a drawer assembly and a blood refrigeration cabinet. Background Art

[0002] A blood refrigerator is a device specifically used to store blood products (such as plasma, red blood cells, platelets, etc.). Its main function is to maintain the activity and stability of blood products by controlling the temperature to ensure their safety and effectiveness in clinical applications.

[0003] Traditional blood refrigerators consist of a cabinet, shelves, blood storage frames, and a temperature control system. Multiple blood bags are stored in the blood storage frames, making them densely packed. This inevitably leads to the situation where the blood removed does not match the actual amount of blood needed. To address this issue, current blood refrigerators and blood cabinets are equipped with multiple drawers, such as the one disclosed in patent publication number CN214029607U. Each drawer houses a blood bag vertically, achieving a "one drawer, one blood bag" storage system, effectively preventing the misplaced blood bags.

[0004] Before medical institutions provide red blood cell therapy to clinical patients, they are required to conduct cross-matching tests on the blood of the recipient and the donor. To ensure the safety and accuracy of the raw plasma samples used for testing, the blood bags used by blood stations to collect plasma from blood donors come with a hose. The hose is generally divided into three sections. These hoses with a small amount of blood are generally called blood samples in the blood bag, commonly known as blood braids. Currently, the blood samples are stored in a drawer together with the blood bags. The plasma in the blood sample is mainly used as a sample for testing blood specimens. When conducting a cross-matching test, it is necessary to open the drawer, take out the entire blood bag, and use scissors to cut it along the front end of the next heat seal. After cutting the blood sample, put it back into the drawer. When people touch the blood bag, it will cause temperature changes and artificial vibrations in the blood, increase the movement of blood cells, cause the cells to decay too quickly, and shorten the life of the blood. Utility Model Content

[0005] Based on this, it is necessary to address the technical problem that currently blood samples are stored in drawers together with blood bags. In cross-matching tests, the entire blood bag needs to be taken out to cut out the blood sample for testing, which causes temperature changes and artificial vibrations in the blood and affects the lifespan of the blood. The present invention proposes a drawer assembly and a blood refrigerator.

[0006] The utility model proposes a drawer assembly, which includes a drawer and a cover plate; a storage area 1 for storing blood samples and a storage area 2 for storing blood bags are formed in the drawer, and a sampling port for taking blood samples from the storage area 1 is opened on the drawer; the cover plate is installed at the position of the sampling port to control the opening and closing of the sampling port.

[0007] The utility model provides a storage area 1 and a storage area 2 in a drawer to store blood and a blood bag separately. An opening and a cover are provided on the drawer. When a cross-matching test is required, the operator only needs to open the cover and take out the blood sample from the sampling port, cut a section of the blood sample, put the blood sample back and cover it. During the whole process, the operator does not touch the blood bag, thereby avoiding temperature changes of the blood and artificial vibrations caused by hand contact, extending the blood storage period, reducing the number of times that humans touch the blood bag, avoiding transfer contamination, better protecting the quality of the blood, and achieving effective storage.

[0008] As a further improvement of the above-mentioned solution of the present invention, one end of the drawer is opened to form the sampling port; the cover is in an inverted L-shape, the bottom of the vertical section of the cover is rotatably connected to the drawer and the vertical section of the cover is snap-connected to the open end surface of the drawer, and the horizontal section of the cover is snap-connected to the top of the drawer and covers the top of storage area one.

[0009] As a further improvement of the above solution of the present invention, a blood type indicator block is slidably mounted on the cover plate and an indicator window is provided on the blood type indicator block. Several display areas adapted to the indicator window are sequentially arranged on the moving path of the blood type indicator block on the cover plate.

[0010] As a further improvement of the above-mentioned scheme of the present invention, the drawer assembly also includes a plurality of slide rails and a plurality of slide seats, the plurality of slide rails are installed at the bottom of the drawer, the plurality of slide seats are respectively arranged in one-to-one correspondence with the plurality of slide rails and the slide seats are slidably connected to the corresponding slide rails, at least one slide rail is provided with a lock hole at one end away from the cover plate and an electronic lock is installed at the end of the slide seat corresponding to the slide rail away from the cover plate, and the lock tongue of the electronic lock can be inserted into the lock hole of the corresponding slide rail to lock the position of the slide rail.

[0011] As a further improvement of the above-mentioned scheme of the present invention, a plurality of sockets are provided at the bottom of the end of the drawer away from the cover plate, and each slide rail is connected to a buckle at the end away from the cover plate, and the buckles of the plurality of slide rails are respectively snapped into the plurality of sockets; a plurality of positioning posts are provided at the bottom of the end of the drawer close to the cover plate, and each slide rail is provided with a positioning hole at the end close to the cover plate, and the plurality of positioning posts are respectively inserted into the plurality of positioning holes.

[0012] As a further improvement of the above solution of the present invention, a detector is installed at one end of one of the slides away from the cover plate, and the detector is used to detect the position of the slide rail corresponding to the slide.

[0013] As a further improvement of the above-mentioned scheme of the present invention, the drawer includes a storage part one and a storage part two; the cross-section of the storage part one is in the shape of a U and both ends of the storage part one are open, the storage part two is in a square structure and one end is open, one open end of the storage part one is cooperated and connected with the open end of the storage part two, and the other open end of the storage part one is cooperated and connected with the cover plate, and a partition plate is provided in the storage part one, and the side of the partition plate close to the cover plate forms the storage area one and the other side of the partition plate forms the storage area two, and the height of the partition plate is less than the depth of the storage area one and the storage area two.

[0014] As a further improvement of the above solution of the utility model, a light-transmitting strip is installed on the storage part, and a light-transmitting window is opened at a position corresponding to the light-transmitting strip on the cover;

[0015] And / or, an extension portion extending downward is provided at the bottom of one end of the storage portion away from the drawer, and the extension portion is concave to form a handle.

[0016] As a further improvement of the above solution of the present invention, a plurality of ventilation holes are provided at the bottom of the second storage area; and / or a plurality of microchannel heat transfer tubes are provided at the bottom of the second storage area.

[0017] The utility model provides a blood refrigerator, which comprises a cabinet body. A plurality of storage compartments are formed in the cabinet body. A drawer assembly is provided in each of the storage compartments. The drawer assembly adopts the drawer assembly described above.

[0018] As a further improvement of the above solution of the present invention, the cover plate of the drawer assembly is always located outside the storage area.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The utility model provides a storage area 1 and a storage area 2 in a drawer to store blood and blood bags separately. At the same time, an opening and a cover are provided on the drawer. When a cross-matching test is required, the operator only needs to open the cover and take out the blood sample from the sampling port, cut a section of the blood sample, put the remaining blood sample back and cover the cover. During the whole process, the operator will not touch the blood bag, thereby avoiding changes in blood temperature and artificial vibration caused by hand contact, extending the blood storage period, reducing the number of times people touch the blood bag, avoiding transfer contamination, better protecting the quality of the blood, and extending the effective storage time.

[0021] 2. The utility model provides electronic locks and detectors so that the opening of drawers is controlled, and one drawer can store and retrieve one blood bag, which can greatly avoid the occurrence of human error in taking out blood bags.

[0022] 3. The present invention provides a microchannel heat transfer tube and utilizes the good cooling performance of the microchannel heat transfer tube to quickly cool the blood in the blood bag and keep the temperature uniform when the blood bag is stored in the drawer.

[0023] 4. The drawer and the slide rail of the utility model are detachably connected through buckles and sockets, and positioning columns and positioning holes, so that the entire drawer can be removed from the slide rail, making it easier to disinfect the drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a blood refrigerator proposed in an embodiment of the present utility model;

[0025] Figure 2 A structural schematic diagram of a drawer assembly proposed in an embodiment of the present utility model;

[0026] Figure 3 This is a structural diagram of a drawer assembly in an embodiment of the present invention in which the cover is in an open state;

[0027] Figure 4 This is an exploded structural diagram of a drawer assembly proposed in an embodiment of the present utility model;

[0028] Figure 5 This is a structural schematic diagram of a slide rail in an unlocked state in a drawer assembly proposed in an embodiment of the present utility model;

[0029] Figure 6 This is a structural schematic diagram of a drawer assembly in an embodiment of the present invention in which a slide rail is in a locked state.

[0030] Figure numerals: 1. Drawer; 101. Storage area 1; 102. Storage area 2; 103. Socket; 104. Storage part 1; 105. Storage part 2; 106. Partition; 107. Light-transmitting strip; 108. Extension; 109. Handle; 110. Ventilation hole; 111. Microchannel heat transfer tube; 2. Cover; 201. Blood type indicator block; 202. Indication window; 203. Display area; 204. Light-transmitting window; 3. Slide rail; 301. Lock hole; 302. Buckle; 303. Positioning hole; 4. Slide; 401. Electronic lock; 402. Detector; 5. Cabinet. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 This embodiment proposes a blood refrigerator, including a cabinet body 5, wherein a plurality of storage compartments are formed inside the cabinet body 5, and each storage compartment is provided with a drawer assembly, which is used to place a blood bag. The drawer assembly can be pulled out to facilitate placing a blood bag in the drawer assembly or taking a blood bag out of the drawer assembly. Figure 2 The drawer assembly of this embodiment includes a drawer 1 and a cover plate 2.

[0033] Drawer 1 includes a storage area 101 for storing blood samples and a storage area 2 102 for storing blood bags. Drawer 1 is provided with a sampling port for removing blood samples from storage area 101. Typically, drawer 1 is a square box. When installed in a blood refrigerator, storage area 101 of drawer 1 faces outward, exposing the sampling port. During a cross-matching test, a blood sample (i.e., a braid) is removed directly from the sampling port, a section cut for testing, and the remaining sample returned to storage area 101. This prevents operator contact with the blood bag, which can cause temperature fluctuations and vibrations, thereby reducing the lifespan of the blood and minimizing the amount of human contact with the blood bag, thereby better protecting the blood's quality.

[0034] In this embodiment, combined with Figure 3 、 Figure 4Drawer 1 includes storage section 104 and storage section 2 105. Storage section 2 105 is square in shape and open at one end. Multiple ventilation holes 110 are provided at the bottom of storage section 2 105, enabling rapid transfer of cold air. Two jacks 103 are provided at the bottom of storage section 2 105, away from the open end. Microchannel heat transfer tubes 111 are also located at the bottom of storage section 2 105. Microchannel heat transfer tubes 111 are conventional technology and significantly increase the efficiency of cold transfer, allowing the blood bags in drawer 1 to cool rapidly during storage. Storage section 104 has a U-shaped cross-section and is open at both ends. One open end of storage section 104 mates with the open end of storage section 2 105, while the other open end of storage section 104 forms a sampling port. A partition plate 106 is disposed within storage section 104. The area between partition plate 106 and the sampling port forms storage section 101, while the area between partition plate 106 and the interior of storage section 2 105 forms storage section 2 102. In this embodiment, storage section 2 105 is constructed of metal and can be formed by stamping. Storage section 104 is constructed of plastic, and two positioning posts (not shown) are integrally formed at the bottom of storage section 104. This allows storage section 2 105 to be integrally connected to storage section 104 through injection molding after molding. To facilitate the withdrawal and extension of drawer 1 from the blood sample refrigerator, a downwardly extending extension 108 is provided at the bottom of one end of storage section 104, away from storage section 2 105. Extension 108 is recessed to form a handle 109. Because the blood samples and blood bags are connected, the height of partition plate 106 in this embodiment is less than the depth of storage section 101 and storage section 2 102. This prevents some blood samples from protruding from drawer 1 and obstructing its withdrawal and extension from the blood refrigerator. Of course, in other embodiments, drawer 1 can also be integrally injection molded, and microchannel heat transfer tube 111 can be integrally molded with drawer 1. In this case, the provision of microchannel heat transfer tube 111 greatly increases the efficiency of cold conduction, allowing the blood bags in drawer 1 to be rapidly cooled during storage.

[0035] The cover plate 2 is installed in the sampling port position to control the opening and closing of the sampling port, and Figure 1As shown, the cover plate 2 is always located outside the storage room of the cabinet 5. The provision of the cover plate 2 can prevent the coldness in the drawer 1 from being lost from the sampling port when the drawer 1 is installed on the blood sample refrigerator. In this embodiment, the cover plate 2 is in an inverted L-shape. The bottom of the vertical section of the cover plate 2 is rotatably connected to the storage portion 104 via a rotating shaft, and the vertical section of the cover plate 2 is engaged with the open end face of the drawer 1. The horizontal section of the cover plate 2 is engaged with the top of the drawer 1 and covers the top of the storage area 101. When performing a cross-matching test, the sampling port can be opened directly by flipping the cover plate 2 to sample the blood sample. The flip structure of the cover plate 2 can fully open the sampling port, thereby meeting the needs of users of different heights and ensuring that the blood sample can be cut. After cutting a section of the blood sample, the cover plate 2 can be closed to keep the blood sample and the blood bag in a specified temperature environment.

[0036] To quickly determine the blood type of the blood stored in each drawer 1, in this embodiment, a blood type indicator block 201 is slidably mounted on the cover 2. The blood type indicator block 201 is provided with an indicator window 202. Four display areas 203 corresponding to the indicator windows 202 are sequentially positioned on the cover 2 along the path of movement of the blood type indicator block 201. Generally, blood types are categorized as A, B, AB, and O. In this embodiment, four display areas 203 are provided, each printed with the words A, B, AB, and O, respectively. Of course, a fifth display area 203 may also be provided, and the word Rh may be printed thereon. With the above arrangement, for example, when the blood stored in a certain drawer 1 is type B, the user can know the blood type of the blood stored in each drawer 1 by moving the blood type indicator block 201 so that the display area 203 printed with B falls into the indication window 202 of the blood type indicator block 201. By observing the words in the indication window 202, the user can know the blood type of the blood stored in each drawer 1.

[0037] To facilitate viewing of each drawer 1 to determine whether a blood bag is stored or whether the blood in the drawer 1 is undergoing a cross-matching test, a light-transmitting strip 107 is mounted on the storage unit 104. A light-transmitting window 204 is provided at a position corresponding to the light-transmitting strip 107. The cabinet body is equipped with an indicator light that can display different colors. When the drawer 1 is closed, the light-transmitting strip 107 corresponds to the indicator light and displays the color of the indicator light. The light-transmitting strip 107 can display different colors of light to inform the user whether the corresponding drawer 1 contains a blood bag or is undergoing a cross-matching test. In this embodiment, when the light-transmitting bar 107 displays red, it means that there is no blood bag in the drawer 1; when the light-transmitting bar 107 displays green, it means that there is a blood bag in the drawer 1; when the light-transmitting bar 107 displays yellow, it means that the blood in the drawer 1 is in the cross-matching test stage; when the light-transmitting bar 107 displays red and flashes, it means that there is no blood bag in the drawer 1 and the slide rail 3 is not in place, and the lock tongue of the electronic lock 401 is not inserted into the lock hole 301; when the light-transmitting bar 107 displays green and flashes, it means that there is a blood bag in the drawer 1 and the slide rail 3 is not in place, and the lock tongue of the electronic lock 401 is not inserted into the lock hole 301; when the light-transmitting bar 107 displays yellow and flashes, it means that the blood bag in the drawer 1 needs to be cross-matched; when the light-transmitting bar 107 displays blue, it means that the blood bag in the drawer 1 is waiting to be taken.

[0038] In order to facilitate the pulling and sliding of the drawer 1, the drawer assembly of this embodiment also includes two slide rails 3 and two slide seats 4. The two slide seats 4 are fixedly installed in the storage room and are arranged along the depth direction of the storage room. The two slide rails 3 are respectively connected to the two slide seats 4 in a sliding manner. A positioning hole 303 is provided at one end of the slide rail 3, and a buckle 302 is connected to the other end of the slide rail 3 by a bolt. A lock hole 301 is provided at one end of one of the slide rails 3 near its buckle 302. The buckles 302 of the two slide rails 3 are respectively inserted into the two sockets 103 of the storage part 2 105, and the two positioning columns at the bottom of the storage part 104 are respectively inserted into the positioning holes 303 of the two slide rails 3, thereby realizing the connection between the slide rail 3 and the drawer 1. An electronic lock 401 is installed on the slide 4 corresponding to the slide 3 with the lock hole 301, and a detector 402 for detecting the position of the slide 3 is installed on the other slide 4. The detector 402 is located at the end of the slide 4 away from the cover 2. In this embodiment, the detector 402 is a travel switch. Of course, in other embodiments, the detector 402 can also be a proximity switch, a magnetic switch, an infrared sensor, etc. Figure 5 、 Figure 6When the detector 402 detects that the slide rail 3 is in place, the lock tongue of the electronic lock 401 extends and inserts into the lock hole 301, locking the slide rail 3 in place. At this point, even if the handle 109 is pulled outward to pull the drawer 1, the drawer 1 will not be opened. When a blood bag in a drawer 1 is needed, the control system of the blood refrigerator controls the lock tongue of the electronic lock 401 to retract, disengaging the lock tongue from the lock hole 301, allowing the drawer 1 to be pulled out. In this embodiment, the drawer 1 is connected to the slide rail 3 via the positioning post and the latch 302, allowing the drawer 1 to be separated from the slide rail 3, thereby removing the drawer 1 from the blood refrigerator for disinfection.

[0039] It should be noted that, in other embodiments, a detector for detecting the extension part can be installed on the cabinet body at the outside of each storage room. When the detector detects that the extension part is in place, the lock tongue of the electronic lock 401 extends and inserts into the lock hole 301 to lock the position of the slide rail 3. At this time, even if the handle 109 is pulled out to pull the drawer 1 outward, the drawer 1 will not be opened; when it is necessary to take out a blood bag in a certain drawer 1, the lock tongue of the electronic lock 401 is controlled by the control system of the blood refrigerator to retract, and the lock tongue is disengaged from the lock hole 301, and the drawer 1 can be pulled out.

[0040] With the above structural arrangement, when the barcode scanner of the blood sample refrigerator scans and identifies the identification code on the blood bag, the control system of the blood refrigerator obtains the information of the blood in the blood bag and matches an empty drawer 1 for the blood bag. The control system controls the electronic lock 401 of the drawer 1 to unlock, the lock tongue retracts and disengages from the lock hole 301, the cabinet door is opened, the drawer 1 is pulled out, and the blood bag is placed in the storage area 2 102 of the drawer 1, the cover 2 is flipped to open the storage room 1, and the blood sample in the blood bag is placed in the storage area 101; then the cover 2 is closed, and the drawer 1 is pushed into the storage room. When the drawer 1 is pushed into place, the detector 402 detects the slide rail 3, the lock tongue of the electronic lock 401 extends and inserts into the lock hole 301 of the slide rail 3, the indicator light immediately turns green, and the light-transmitting strip 107 also immediately turns green; according to the blood type displayed on the display system of the blood refrigerator, the blood type indicator block 201 is moved to the corresponding display area 203 for easy observation by the user, and the cabinet door is closed. When blood of a certain blood type is needed, the control system of the blood refrigerator obtains the blood type required by the user and matches a drawer 1 containing blood of that blood type for the user. The indicator light turns yellow and flashes, and the light-transmitting strip 107 of the drawer 1 also turns yellow and flashes. The cabinet door is opened, and the user verifies the blood type indicated by the blood type indicator block 201 on the drawer 1 according to the status displayed by the light-transmitting strip 107. Then, the cover 2 on the drawer 1 is opened, the blood sample is taken out and a section is cut off, and then the blood sample is put back in and the cover 2 is closed. The indicator light turns yellow, and the light-transmitting strip 107 also turns yellow immediately, and the cabinet door is closed. When the blood matching is successful, that is, when the blood type in the blood bag corresponding to the blood sample matches the required blood type, the blood bag in the drawer 1 needs to be taken out and used. The indicator light of the corresponding drawer 1 turns blue, and the light-transmitting strip 107 also turns blue immediately. The control system controls the electronic lock 401 of the drawer 1 to unlock, and the cabinet door is opened. The user pulls out the drawer 1 and takes out the blood bag according to the prompt of the blue light-transmitting strip 107.

[0041] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A drawer assembly, characterized in that: It comprises a drawer (1) and a cover plate (2); a storage area 1 (101) for storing blood samples and a storage area 2 (102) for storing blood bags are formed in the drawer (1); a sampling port for taking blood samples from the storage area 1 (101) is provided on the drawer (1); the cover plate (2) is mounted at the sampling port position to control the opening and closing of the sampling port; One end of the drawer (1) is open to form the sampling port; the cover (2) is in an inverted L-shape, the bottom of the vertical section of the cover (2) is rotatably connected to the drawer (1) and the vertical section of the cover (2) is engaged with the open end surface of the drawer (1), and the horizontal section of the cover (2) is engaged with the top of the drawer (1) and covers the top of the storage area (101).

2. The drawer (1) assembly according to claim 1, characterized in that: A blood type indicator block (201) is slidably mounted on the cover plate (2), and an indicator window (202) is provided on the blood type indicator block (201). A plurality of display areas (203) adapted to the indicator window (202) are sequentially provided on the cover plate (2) along a moving path of the blood type indicator block (201).

3. The drawer (1) assembly according to claim 1, characterized in that: The drawer (1) assembly further comprises a plurality of slide rails (3) and a plurality of slide seats (4), wherein the plurality of slide rails (3) are mounted on the bottom of the drawer (1), the plurality of slide seats (4) are respectively arranged in one-to-one correspondence with the plurality of slide rails (3), and the slide seats (4) are connected to the corresponding slide rails (3) in a sliding manner, at least one slide rail (3) is provided with a lock hole (301) at one end away from the cover plate (2), and an electronic lock (401) is installed at one end of the slide seat (4) corresponding to the slide rail (3) away from the cover plate (2), and a lock tongue of the electronic lock (401) can be inserted into the lock hole (301) of the corresponding slide rail (3) to lock the position of the slide rail (3).

4. The drawer (1) assembly according to claim 3, characterized in that: A plurality of jacks (103) are provided at the bottom of one end of the drawer (1) away from the cover plate (2), and one end of each slide rail (3) away from the cover plate (2) is connected to a buckle (302), and the buckles (302) of the plurality of slide rails (3) are respectively snapped into the plurality of jacks (103); a plurality of positioning posts are provided at the bottom of one end of the drawer (1) close to the cover plate (2), and one end of each slide rail (3) close to the cover plate (2) is provided with a positioning hole (303), and the plurality of positioning posts are respectively inserted into the plurality of positioning holes (303); And / or, a detector (402) is installed at one end of one of the slide seats (4) away from the cover plate (2), and the detector (402) is used to detect the position of the slide rail (3) corresponding to the slide seat (4).

5. The drawer (1) assembly according to claim 1, characterized in that The drawer (1) comprises a storage part 1 (104) and a storage part 2 (105); the cross section of the storage part 1 (104) is in the shape of a U and both ends of the storage part 1 (104) are open, the storage part 2 (105) is in a square structure and one end thereof is open, one open end of the storage part 1 (104) is cooperatively connected with the open end of the storage part 2 (105), and the other open end of the storage part 1 (104) is cooperatively connected with the cover plate (2), and a partition plate (106) is provided in the storage part 1 (104), and the side of the partition plate (106) close to the cover plate (2) forms the storage area 1 (101) and the other side of the partition plate (106) forms the storage area 2 (102), and the height of the partition plate (106) is less than the depth of the storage area 1 (101) and the storage area 2 (102).

6. The drawer (1) assembly according to claim 5, characterized in that A light-transmitting strip (107) is installed on the storage portion 1 (104), and a light-transmitting window (204) is provided at a position of the cover plate (2) corresponding to the light-transmitting strip (107); And / or, an extension portion (108) extending downward is provided at the bottom of one end of the storage portion (104) away from the drawer (1), and the extension portion (108) is concave to form a handle (109).

7. The drawer (1) assembly according to claim 1, characterized in that A plurality of ventilation holes (110) are provided at the bottom of the second storage area (102); and / or a plurality of microchannel heat transfer tubes (111) are provided at the bottom of the second storage area (102).

8. A blood refrigerator, comprising a cabinet body, wherein a plurality of storage compartments are formed in the cabinet body, and each storage compartment is provided with a drawer (1) assembly, characterized in that: The drawer (1) assembly adopts the drawer (1) assembly described in any one of claims 1 to 7.

9. The blood refrigerator according to claim 8, characterized in that: The cover plate (2) of the drawer (1) assembly is always located outside the storage area.

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