Refrigeration house storage rack based on frozen food preservation

Abstract

The utility model discloses a refrigeration house storage rack based on frozen food preservation, which comprises a support body, a storage rack and a storage rack, the storage assembly comprises a hollow bottom shell and a containing plate; the plurality of first circulating holes are formed in the side part of the hollow bottom shell and can enable the inner cavity of the hollow bottom shell to be communicated with the outside; the second circulation holes are formed in the containing plate and face the inner cavity of the hollow bottom shell; the containing plate is matched with the opening in the top of the hollow bottom shell. During use, the support body provided with the storage assembly is arranged in a refrigeration house, the inner cavity of the hollow bottom shell is communicated with the refrigeration house through the first circulation holes, so that cold air passes through the lower portion of the containing plate, and the cold air passing through the inner cavity of the middle hole bottom shell can act on the bottom of food placed on the containing plate through the second circulation holes; and therefore, the condition of poor fresh-keeping effect caused by insufficient contact between the bottom of the food and cold air is reduced, and storage of the meat food with a large area is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of cold storage racks, in particular to a cold storage rack for storing frozen food. Background Art

[0002] Cold storage racks are racks for storing food that needs to be kept fresh (such as fruits, vegetables, meat, etc.) in cold storage. In the prior art, the racks include a rack and a flat plate arranged on the rack, and the food is directly placed on the flat plate. In the scenario where the food is kept fresh only by the cold air in the cold storage, the bottom surface of the food cannot be fully in contact with the cold air in the cold storage, resulting in poor preservation effect, which is particularly not conducive to the preservation of meat food with a large area. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide a cold storage rack for storing frozen food.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A cold storage rack for storing frozen food, comprising:

[0006] The support body is provided with a support structure;

[0007] The storage assembly comprises a hollow bottom shell and a containing plate, wherein the bottom of the hollow bottom shell is detachably fixed to the bracket body through the supporting structure;

[0008] A plurality of first flow holes are provided on the side of the hollow bottom shell, and can make the inner cavity of the hollow bottom shell communicate with the outside;

[0009] A plurality of second flow holes are formed on the containing plate and face the inner cavity of the hollow bottom shell; the containing plate is matched with the top opening of the hollow bottom shell.

[0010] Preferably, it also includes:

[0011] A plurality of strip ventilation grooves are arranged at the bottom of the holding plate, the second flow holes are strip through holes arranged along the width direction of the holding plate, and a plurality of the second flow holes are arranged at equal intervals along the length direction of the holding plate; a plurality of the strip ventilation grooves are arranged at the bottom of the holding plate, corresponding one to one with the second flow holes, and an air intake notch is opened at the end thereof, and the air intake notch faces the first flow hole.

[0012] Preferably, the holding plate comprises:

[0013] A lifting plate body slidingly cooperates with the inner cavity of the hollow bottom shell in the vertical direction;

[0014] A first plate body, one side of which is hinged to the left side of the lifting plate body and the other side of which is movably connected to the inner cavity wall of the hollow bottom shell, and is provided with the second flow hole and the strip-shaped ventilation slot;

[0015] A second plate body, one side of which is hinged to the right side of the lifting plate body and the other side of which is movably connected to the inner cavity wall of the hollow bottom shell; the structure of the second plate body is the same as that of the first plate body;

[0016] When the lifting plate body descends in the inner cavity of the hollow bottom shell, the first plate body and the second plate body are driven to flip downward relative to the hollow bottom shell to form a downwardly concave storage space;

[0017] When the lifting plate body rises in the inner cavity of the hollow bottom shell, it drives the first plate body and the second plate body to flip upward relative to the hollow bottom shell to form a storage plane.

[0018] Preferably, it also includes:

[0019] A first rotating rod, with first sliders respectively provided at both ends, and a side of the first plate body away from the lifting plate body is rotatably matched with the first rotating rod;

[0020] A first sliding groove, corresponding to the first sliding block one by one, is recessed in the inner cavity side wall of the hollow bottom shell and slidably cooperates with the first sliding block;

[0021] A second rotating rod, with second sliders respectively provided at both ends, and a side of the second plate body away from the lifting plate body is rotatably matched with the second rotating rod;

[0022] A second sliding groove, corresponding to the second sliding block one by one, is recessed in the inner cavity side wall of the hollow bottom shell and slidably cooperates with the second sliding block;

[0023] A third rotating rod is arranged on the left side of the lifting plate body, and a side of the first plate body away from the first rotating rod is hinged to the lifting plate body through the third rotating rod;

[0024] The fourth rotating rod is arranged on the right side of the lifting plate body, and the side of the second plate body away from the second rotating rod is hinged to the lifting plate body through the fourth rotating rod.

[0025] Preferably, it also includes:

[0026] A pair of first connecting plates, disposed oppositely on two sides of the first plate body, one of which is rotatably matched with the first rotating rod, and the other is rotatably matched with the third rotating rod;

[0027] A pair of second connecting plates are oppositely arranged on two sides of the second plate body, one of which is rotationally matched with the second rotating rod, and the other is rotationally matched with the fourth rotating rod.

[0028] Preferably, it also includes:

[0029] A locking rod is arranged at the bottom of the lifting plate body, and a first through hole for the locking rod to pass through is opened at the bottom of the hollow bottom shell;

[0030] An elastic component, the bottom end of which is against the bottom wall of the inner cavity of the hollow bottom shell, and the top end of which acts on the lifting plate body and can continuously provide an upward elastic force for the lifting plate body;

[0031] The locking block acts on the locking rod and can limit the upward movement of the lifting plate relative to the hollow bottom shell.

[0032] Preferably, the locking rod is provided with a thread, the locking block is a nut matched with the thread of the locking rod, and the elastic component is a spring sleeved on the locking rod;

[0033] When the locking block is twisted upward relative to the locking rod, the lifting plate body is driven to move downward relative to the inner cavity of the hollow bottom shell, and the elastic component is compressed at this time;

[0034] When the locking block is screwed downward relative to the locking rod, the lifting plate body is driven to move upward relative to the inner cavity of the hollow bottom shell, and the elastic component is released at this time.

[0035] Preferably, it also includes:

[0036] A pair of guide rods are arranged at the bottom of the lifting plate body, and a second through hole for the guide rods to pass through is opened on the bottom wall of the inner cavity of the hollow bottom shell.

[0037] Preferably, a plurality of the first flow holes can be arranged on the hollow bottom shell to form a first ventilation area and a second ventilation area, the first ventilation area corresponds to the first plate body, and the second ventilation area corresponds to the second plate body.

[0038] Preferably, the support structure comprises:

[0039] A pair of support seats, arranged oppositely on two sides of the bracket body, each having a bayonet, and the end of the hollow bottom shell is adapted to the bayonet;

[0040] A support rod, one end of which is connected to one of the support seats, and the other end of which is connected to the other support seat, acts on the bottom of the hollow bottom shell.

[0041] The beneficial effect of the utility model is that when in use, the bracket body equipped with the storage assembly is placed in a cold storage, and the inner cavity of the hollow bottom shell is communicated with the cold storage by using a plurality of first circulation holes, so that cold air passes through the bottom of the holding plate, and the cold air passing through the inner cavity of the hollow bottom shell is able to act on the bottom of the food placed on the holding plate by using a plurality of second circulation holes, thereby reducing the situation where the preservation effect is poor due to insufficient contact between the bottom of the food and the cold air, and is more conducive to the storage of meat products with a larger area. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is one of the structural schematic diagrams of the embodiment of the utility model;

[0043] Figure 2 This is one of the schematic diagrams of the storage assembly in the embodiment of the utility model;

[0044] Figure 3 for Figure 2 One of the longitudinal sections of

[0045] Figure 4 for Figure 2 The second longitudinal section diagram of

[0046] Figure 5 This is the second structural diagram of the embodiment of the utility model;

[0047] Figure 6 This is a second schematic diagram of the storage assembly of an embodiment of the present utility model;

[0048] Figure 7 for Figure 6 One of the longitudinal sections of

[0049] Figure 8 for Figure 6 The second longitudinal section diagram of

[0050] Fig. 9 It is an exploded view of the components of the embodiment of the utility model;

[0051] Fig.10 This is an exploded view of the storage assembly of an embodiment of the present utility model.

[0052] As shown in the figure:

[0053] 1- bracket body, 11- supporting structure, 111- supporting seat, 1111- bayonet, 112- supporting rod;

[0054] 2-storage component, 21-hollow bottom shell, 211-first flow hole, 212-first slide groove, 213-second slide groove, 22-holding plate, 221-second flow hole, 222-strip ventilation groove, 2221-air inlet notch, 223-lifting plate body, 224-first plate body, 225-second plate body, 226-storage space, 227-storage plane, 23-first rotating rod, 231-first slider, 24-second rotating rod, 241-second slider, 25-third rotating rod, 26-fourth rotating rod, 27-first connecting plate, 28-second connecting plate;

[0055] 3-locking rod, 31-elastic component, 32-locking block;

[0056] 4-Guide rod. DETAILED DESCRIPTION

[0057] The following is a detailed explanation of the implementation of the present invention in conjunction with the accompanying drawings. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of the present invention.

[0058] See also Figure 1-Figure 10 In this embodiment, a cold storage rack for storing frozen food includes:

[0059] The support body 1 is provided with a support structure 11;

[0060] The storage assembly 2 includes a hollow bottom shell 21 and a receiving plate 22, wherein the bottom of the hollow bottom shell 21 is detachably fixed to the bracket body 1 through the supporting structure 11;

[0061] A plurality of first flow holes 211 are provided on the side of the hollow bottom shell 21, and enable the inner cavity of the hollow bottom shell 21 to communicate with the outside;

[0062] A plurality of second flow holes 221 are formed on the receiving plate 22 and face the inner cavity of the hollow bottom shell 21 ; the receiving plate 22 is adapted to the top opening of the hollow bottom shell 21 .

[0063] In this embodiment, the bracket body 1 includes four vertically arranged upright poles, the top ends of which are connected to a rectangular top plate, and a total of three groups of support structures 11 are provided. The three groups of support structures 11 are arranged on the bracket body 1 along the vertical direction, so as to realize the installation of three groups of storage components 2. When in use, the bracket body 1 with the storage components 2 installed is placed in a cold storage, and a plurality of first flow holes 211 are used to make the inner cavity of the hollow bottom shell 21 communicate with the cold storage, so that cold air passes under the holding plate 22, and a plurality of second flow holes 221 are used to make the cold air passing through the inner cavity of the hollow bottom shell act on the bottom of the food placed on the holding plate 22, thereby reducing the poor preservation effect caused by insufficient contact between the bottom of the food and the cold air, and is more conducive to the storage of meat products with a larger area.

[0064] Preferably, it further includes:

[0065] A plurality of strip-shaped ventilation grooves 222 are provided at the bottom of the placing plate 22. The second through holes 221 are strip-shaped through holes arranged along the width direction of the placing plate 22, and a plurality of the second through holes 221 are arranged at equal intervals along the length direction of the placing plate 22; a plurality of the strip-shaped ventilation grooves 222 are provided at the bottom of the placing plate 22 and correspond to the second through holes 221 one by one, and an air intake notch 2221 is formed at the end thereof, and the air intake notch 2221 faces the first through hole 211.

[0066] In this embodiment, the longitudinal section of the strip-shaped ventilation groove 222 is in a U shape, protruding from the bottoms of the first plate body 224 and the second plate body 225, and air intake notches 2221 are respectively arranged at both ends. Corresponding first through holes 211 are respectively formed on both sides of the hollow bottom shell 21. It should be noted that either the left or right side of the placing component 2 of this embodiment can allow cold air to pass through. Specifically, which side of the air intake notch 2221 is used for air intake needs to be determined according to the actual placement orientation of the bracket body 1. Preferably, when placing, the front end of the placing component 2 with the first through hole 211 faces the cold air source in the cold storage. On the one hand, it can utilize the two-way first through holes 211 and air intake notches 2221 to form air convection, reducing the influence on the fresh-keeping effect of meat due to poor ventilation. On the other hand, by using the downwardly protruding strip-shaped ventilation grooves 222, it can prevent large-area meat products from covering the second through holes 221, enabling a certain interval to be left between the air intake notch and the second through holes 221; further, a wire mesh (not shown in the figure) is laid on the top opening (the end far from the strip-shaped ventilation groove 222) of the second through hole 221 to reduce the situation that food particle residues fall into the strip-shaped ventilation groove 222 and affect the cold air circulation. The wire mesh is woven by a plurality of vertically and horizontally交错的铁丝 (vertically and horizontally interlaced iron wires); specifically, assembly plates are respectively arranged outward along both sides of the strip-shaped ventilation groove 222, and through holes for screws to pass through are formed on the assembly plates. The strip-shaped ventilation strips are fixedly connected to the first plate body 224 / second plate body 225 by screws.

[0067] Preferably, the placing plate 22 includes:

[0068] A lifting plate body 223, which is slidably matched with the inner cavity of the hollow bottom shell 21 in the vertical direction;

[0069] A first plate body 224, one side of which is hinged to the left side of the lifting plate body 223 and the other side is movably connected to the inner cavity wall of the hollow bottom shell 21, and is provided with the second through hole 221 and the strip-shaped ventilation groove 222;

[0070] The second plate body 225 has one side hinged to the right side of the lifting plate body 223 and the other side movably connected to the inner wall of the hollow bottom shell 21; the structure is the same as that of the first plate body 224;

[0071] As attached Figure 6 As shown in , when the lifting plate 223 descends in the inner cavity of the hollow bottom shell 21, the first plate 224 and the second plate 225 are driven to flip downward relative to the hollow bottom shell 21, so as to form a downwardly concave storage space 226;

[0072] As attached Figure 2 As shown in , when the lifting plate 223 rises in the inner cavity of the hollow bottom shell 21 , it drives the first plate 224 and the second plate 225 to flip upward relative to the hollow bottom shell 21 to form a storage plane 227 .

[0073] In this embodiment, the movable first plate 224 and the second plate 225 are used to change the top shape of the holding plate 22. When the food to be placed is relatively flat, the lifting plate 223 is lifted in the inner cavity of the hollow bottom shell 21, driving the first plate 224 and the second plate 225 to flip upward relative to the hollow bottom shell 21, and the first plate 224 and the second plate 225 are located on the same plane. When the shape of the food to be placed is spherical or other irregular shapes, in the prior art, a basket is generally used to store it, and then the basket is directly placed on the storage rack. This storage method has the problem that the food at the bottom of the basket cavity is not easy to contact with the cold air, thus affecting the preservation effect. In this embodiment, the lifting plate 223 is lowered in the cavity of the hollow bottom shell 21, driving the first plate 224 and the second plate 225 to flip downward relative to the hollow bottom shell 21 to form a downwardly recessed storage space 226. At this time, the second flow hole 221 faces the recessed storage space 226, which can make the storage space 226 communicate with the cavity of the hollow bottom shell 21, thereby reducing the situation where the bottom food preservation effect is poor due to the accumulation of food in the basket.

[0074] Preferably, it also includes:

[0075] The first rotating rod 23 has first sliders 231 at both ends, and the first plate 224 is rotatably matched with the first rotating rod 23 at one side away from the lifting plate 223;

[0076] The first sliding groove 212 corresponds to the first sliding block 231 one by one, is recessed in the inner cavity side wall of the hollow bottom shell 21, and is slidably matched with the first sliding block 231;

[0077] The second rotating rod 24 has second sliders 241 at both ends, and the second plate 225 is rotatably matched with the second rotating rod 24 at one side away from the lifting plate;

[0078] The second sliding groove 213 corresponds to the second sliding block 241 one by one, is recessed in the inner cavity side wall of the hollow bottom shell 21, and is slidably matched with the second sliding block 241;

[0079] A third rotating rod 25 is provided on the left side of the lifting plate 223, and a side of the first plate 224 away from the first rotating rod 23 is hinged to the lifting plate 223 through the third rotating rod 25;

[0080] The fourth rotating rod 26 is disposed on the right side of the lifting plate body 223 , and the side of the second plate body 225 away from the second rotating rod 24 is hinged to the lifting plate body 223 through the fourth rotating rod 26 .

[0081] In this embodiment, when the lifting plate body 223 is pressed downward, the first slider 231 slides in cooperation with the first slide groove 212, and the second slider 241 slides in cooperation with the second slide groove 213, and cooperates with the four rotating rods to realize the flipping of the first plate body 224 and the second plate body 225, thereby achieving the effect of changing the top shape structure of the holding plate 22, and the structure is simple and easy to manufacture.

[0082] Preferably, it also includes:

[0083] A pair of first connecting plates 27, disposed oppositely at two sides of the first plate body 224, one of which is rotatably matched with the first rotating rod 23, and the other is rotatably matched with the third rotating rod 25;

[0084] A pair of second connecting plates 28 are oppositely disposed on two sides of the second plate body 225 , one of which is rotatably matched with the second rotating rod 24 , and the other is rotatably matched with the fourth rotating rod 26 .

[0085] In this embodiment, the first plate body 224 is fixedly connected to the first connecting plate 27 by screws, and the second plate body 225 is fixedly connected to the second connecting plate 28 by screws.

[0086] Preferably, it also includes:

[0087] The locking rod 3 is arranged at the bottom of the lifting plate body 223, and the bottom of the hollow bottom shell 21 is provided with a first through hole for the locking rod 3 to pass through;

[0088] The elastic component 31 has a bottom end that abuts against the bottom wall of the inner cavity of the hollow bottom shell 21, and a top end that acts on the lifting plate body 223 and can continuously provide an upward elastic force for the lifting plate body 223;

[0089] The locking block 32 acts on the locking rod 3 to limit the upward movement of the lifting plate relative to the hollow bottom shell 21 .

[0090] In this embodiment, the elastic component 31 is used to continuously provide an upward elastic supporting force for the placing plate 22 , thereby facilitating the first plate body 224 and the second plate body 225 to maintain the state of the placing plane 227 .

[0091] Preferably, the locking rod 3 is provided with a thread, the locking block 32 is a nut that is threadedly matched with the locking rod 3, and the elastic component 31 is a spring sleeved on the locking rod 3;

[0092] When the locking block 32 is twisted upward relative to the locking rod 3, the lifting plate 223 is driven to move downward relative to the inner cavity of the hollow bottom shell 21, and the elastic component 31 is compressed.

[0093] When the locking block 32 is screwed downward relative to the locking rod 3, the lifting plate 223 is driven to move upward relative to the inner cavity of the hollow bottom shell 21, and the elastic component 31 is released. Furthermore, a corrugated gasket is included, which is located between the nut and the bottom surface of the hollow bottom shell 21, and has a simple structure and is easy to use.

[0094] Preferably, it also includes:

[0095] A pair of guide rods 4 are disposed at the bottom of the lifting plate body 223 , and a second through hole for the guide rods 4 to pass through is formed on the bottom wall of the inner cavity of the hollow bottom shell 21 .

[0096] In this embodiment, there are three elastic components 31, one of which is sleeved on the locking rod 3, and the other two are correspondingly sleeved on a pair of guide rods 4. The guide rods 4 are used to guide the moving lifting plate body 223, and the three elastic components 31 are used to ensure that the bottom of the lifting plate body 223 is evenly stressed.

[0097] Preferably, a plurality of the first flow holes 211 can be arranged on the hollow bottom shell 21 to form a first ventilation area and a second ventilation area, wherein the first ventilation area corresponds to the first plate 224 and the second ventilation area corresponds to the second plate 225, so as to further improve the ventilation effect.

[0098] Preferably, the support structure 11 comprises:

[0099] A pair of support seats 111 are disposed on opposite sides of the bracket body 1 and are respectively provided with bayonet holes 1111 , and the ends of the hollow bottom shell 21 are adapted to the bayonet holes 1111 ;

[0100] The support rod 112 has one end connected to one of the support seats 111 and the other end connected to the other support seat 111 , and acts on the bottom of the hollow bottom shell 21 .

[0101] In this embodiment, the hollow bottom shell 21 can be assembled and disassembled with the bracket body 1 in the vertical direction through the bayonet 1111, thereby facilitating the taking and placing of food.

[0102] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A cold storage rack for storing frozen food, characterized in that: include: The support body is provided with a support structure; The storage assembly comprises a hollow bottom shell and a containing plate, wherein the bottom of the hollow bottom shell is detachably fixed to the bracket body through the supporting structure; A plurality of first flow holes are provided on the side of the hollow bottom shell, and can make the inner cavity of the hollow bottom shell communicate with the outside; A plurality of second flow holes are formed on the containing plate and face the inner cavity of the hollow bottom shell; the containing plate is matched with the top opening of the hollow bottom shell.

2. A cold storage rack for storing frozen food according to claim 1, characterized in that: Also includes: A plurality of strip ventilation grooves are arranged at the bottom of the holding plate, the second flow holes are strip through holes arranged along the width direction of the holding plate, and a plurality of the second flow holes are arranged at equal intervals along the length direction of the holding plate; a plurality of the strip ventilation grooves are arranged at the bottom of the holding plate, corresponding one to one with the second flow holes, and an air intake notch is opened at the end thereof, and the air intake notch faces the first flow hole.

3. A cold storage rack for storing frozen food according to claim 2, characterized in that: The holding plate comprises: A lifting plate body slidingly cooperates with the inner cavity of the hollow bottom shell in the vertical direction; A first plate body, one side of which is hinged to the left side of the lifting plate body and the other side of which is movably connected to the inner cavity wall of the hollow bottom shell, and is provided with the second flow hole and the strip-shaped ventilation slot; A second plate body, one side of which is hinged to the right side of the lifting plate body and the other side of which is movably connected to the inner cavity wall of the hollow bottom shell; the structure of the second plate body is the same as that of the first plate body; When the lifting plate body descends in the inner cavity of the hollow bottom shell, the first plate body and the second plate body are driven to flip downward relative to the hollow bottom shell to form a downwardly concave storage space; When the lifting plate body rises in the inner cavity of the hollow bottom shell, it drives the first plate body and the second plate body to flip upward relative to the hollow bottom shell to form a storage plane.

4. The cold storage rack for storing frozen food according to claim 3, characterized in that: Also includes: A first rotating rod, with first sliders respectively provided at both ends, and a side of the first plate body away from the lifting plate body is rotatably matched with the first rotating rod; A first sliding groove, corresponding to the first sliding block one by one, is recessed in the inner cavity side wall of the hollow bottom shell and slidably cooperates with the first sliding block; A second rotating rod, with second sliders respectively provided at both ends, and a side of the second plate body away from the lifting plate body is rotatably matched with the second rotating rod; A second sliding groove, corresponding to the second sliding block one by one, is recessed in the inner cavity side wall of the hollow bottom shell and slidably cooperates with the second sliding block; A third rotating rod is arranged on the left side of the lifting plate body, and a side of the first plate body away from the first rotating rod is hinged to the lifting plate body through the third rotating rod; The fourth rotating rod is arranged on the right side of the lifting plate body, and the side of the second plate body away from the second rotating rod is hinged to the lifting plate body through the fourth rotating rod.

5. The cold storage rack for storing frozen food according to claim 4, characterized in that: Also includes: A pair of first connecting plates, disposed oppositely on two sides of the first plate body, one of which is rotatably matched with the first rotating rod, and the other is rotatably matched with the third rotating rod; A pair of second connecting plates are oppositely arranged on two sides of the second plate body, one of which is rotationally matched with the second rotating rod, and the other is rotationally matched with the fourth rotating rod.

6. The cold storage rack for storing frozen food according to claim 3, characterized in that: Also includes: A locking rod is arranged at the bottom of the lifting plate body, and a first through hole for the locking rod to pass through is opened at the bottom of the hollow bottom shell; An elastic component, the bottom end of which is against the bottom wall of the inner cavity of the hollow bottom shell, and the top end of which acts on the lifting plate body and can continuously provide an upward elastic force for the lifting plate body; The locking block acts on the locking rod and can limit the upward movement of the lifting plate relative to the hollow bottom shell.

7. A cold storage rack for storing frozen food according to claim 6, characterized in that: The locking rod is provided with a thread, the locking block is a nut matched with the thread of the locking rod, and the elastic component is a spring sleeved on the locking rod; When the locking block is twisted upward relative to the locking rod, the lifting plate body is driven to move downward relative to the inner cavity of the hollow bottom shell, and the elastic component is compressed at this time; When the locking block is screwed downward relative to the locking rod, the lifting plate body is driven to move upward relative to the inner cavity of the hollow bottom shell, and the elastic component is released at this time.

8. The cold storage rack for storing frozen food according to claim 7, characterized in that: Also includes: A pair of guide rods are arranged at the bottom of the lifting plate body, and a second through hole for the guide rods to pass through is opened on the bottom wall of the inner cavity of the hollow bottom shell.

9. The cold storage rack for storing frozen food according to claim 3, characterized in that: A plurality of the first flow holes can be arranged on the hollow bottom shell to form a first ventilation area and a second ventilation area, wherein the first ventilation area corresponds to the first plate body, and the second ventilation area corresponds to the second plate body.

10. The cold storage rack for storing frozen food according to claim 1, characterized in that: The support structure comprises: A pair of support seats, arranged oppositely on two sides of the bracket body, each having a bayonet, and the end of the hollow bottom shell is adapted to the bayonet; A support rod, one end of which is connected to one of the support seats, and the other end of which is connected to the other support seat, acts on the bottom of the hollow bottom shell.

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