A layered freshness keeping device for cold chain logistics
By introducing a splicing structure into the preservation device and utilizing the design of a press-and-rebound device and a card slot, the problem of unstable stacking of existing devices during transportation has been solved, achieving stable stacking of the boxes and stability during transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI SONGSHENG IND CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-06-02
AI Technical Summary
Existing preservation devices are not easy to assemble when stacked during transportation, which makes the stacked boxes prone to shaking and tilting.
The structure is made up of components such as a press-and-rebound device, a press rod, a slider, a connecting groove, and a locking device. The locking device and the locking groove work together to achieve stable stacking and limiting of the box, ensuring that it is not easy to slip during transportation.
This ensures the stability of the container during transportation, preventing swaying and tilting of stacked containers and improving overall stability during transport.
Smart Images

Figure CN224312378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold chain logistics technology, specifically a layered preservation device for cold chain logistics. Background Technology
[0002] Cold chain logistics generally refers to a systematic project that ensures refrigerated and frozen foods are kept in a specified low-temperature environment throughout all stages from production, storage, transportation, and sales to consumption, in order to guarantee food quality and reduce food loss. Refrigerated foods require the use of preservation devices, which can preserve refrigerated foods at low temperatures for transportation.
[0003] Existing patent CN217497165U discloses a layered preservation device for cold chain logistics, including a preservation box. The insertion holes at both ends of the top of one plastic support frame are movably penetrated by a support plate. The bottom ends of the two support plates are movably penetrated by the insertion holes at both ends of the top of another plastic support frame. Limiting holes are opened in the middle of both sides of the two plastic support frames, and iron inserts are movably penetrated inside the four limiting holes.
[0004] The aforementioned patents or existing food preservation devices have the following problems:
[0005] Existing refrigeration equipment needs to be stacked together during transportation. However, it is not convenient to splice the stacked containers together, which makes the stacked containers prone to shaking and tilting. Utility Model Content
[0006] The purpose of this invention is to provide a layered preservation device for cold chain logistics to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a layered preservation device for cold chain logistics, comprising a box body, a box door, an inner cavity, a layered plate, and a splicing structure, including a press-and-rebound device, which is fixed in the box body. A pressing rod is connected to the box body, with a connector at the end of the pressing rod. A fixing plate is provided on the surface of the pressing rod, and a connecting rod is provided on the fixing plate. A slider is connected to the box body, with a connecting groove in the slider and a locking element on the surface of the slider. A locking groove is provided at the lower end of the box body.
[0008] Preferably, there are two sliders, located at the left and right ends of the pressing rod, respectively, and the sliders at the left and right ends of the pressing rod have the same structure.
[0009] Preferably, the connecting groove is inclined, and the connecting rod is connected to the connecting groove.
[0010] Preferably, a positioning port is provided at the lower end of the box body, and a positioning block is provided at the top of the box body.
[0011] Preferably, the height of the positioning block is higher than the height of the card.
[0012] Preferably, a fixing rod is fixed inside the housing, and the slider is slidably connected to the fixing rod.
[0013] Preferably, a spring is fixed inside the slider, and the spring is hidden inside the slider.
[0014] Preferably, the side of the box body has a notch, and the pressing rod is located in the notch.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] When the boxes are stacked and spliced, the positioning block will align with the positioning port, and then the clip will align with the slot and insert into the slot. Then, press the pressing rod so that the connector aligns with the pressing rebound device, thereby locking the pressing rod. During the pressing of the pressing rod, the fixing plate will be pushed and the connecting rod will slide. The connecting rod will slide along the inside of the connecting groove, and then push the slider and drive the clip to slide. The clip will be locked in the slot to realize the splicing limit after the boxes are stacked, so that the stacked boxes are less likely to slip sideways, making the boxes more stable during transportation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a front view cross-sectional structural diagram of the splicing structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the slider of this utility model.
[0020] In the diagram: Box body-1, Box door-2, Inner cavity-3, Layered board-4, Splicing structure-5, Press-rebound device-51, Press rod-52, Connector-53, Fixing plate-54, Connecting rod-55, Slider-56, Connecting groove-57, Clip-58, Clip groove-59, Positioning port-510, Positioning block-511, Notch-512, Fixing rod-513, Spring-514. Detailed Implementation
[0021] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.
[0022] Please see Figure 1 and Figure 2This utility model provides a layered preservation device for cold chain logistics, including a box body 1, which is an insulated box body. A door 2 is rotatably connected to the opening of the box body 1. An inner cavity 3 is formed in the box body 1. A layered plate 4 is provided in the inner cavity 3. A splicing structure 5 is provided in the box body 1.
[0023] Specifically, refrigerated food is placed in the inner cavity 3, and the partition 4 can separate the refrigerated food for storage. The door 2 is closed to seal and preserve the refrigerated food at low temperature.
[0024] Please see Figure 2 and Figure 3 This utility model provides a layered preservation device for cold chain logistics. The splicing structure 5 includes a press-rebound device 51. The press-rebound device 51 is fixed in the box 1. A pressing rod 52 is slidably connected in the box 1. A connector 53 is integrally formed at the end of the pressing rod 52. The connector 53 can be connected to the press-rebound device 51. Fixing plates 54 are integrally formed on the left and right sides of the pressing rod 52. A connecting rod 55 is integrally formed on the fixing plate 54.
[0025] Inside the housing 1, at both ends of the pressing rod 52, there are sliding blocks 56 connected to each other. The sliders 56 have inclined connecting grooves 57. The connecting rod 55 is connected to the connecting grooves 57. The connecting rod 57 can slide inside the connecting grooves 57. The surface of the sliders 56 is integrally formed with a locking piece 58. The lower end of the housing 1 has a locking groove 59.
[0026] The lower end of the box body 1 is provided with a positioning opening 510, and the top of the box body 1 is integrally formed with a positioning block 511. The height of the positioning block 511 is higher than the height of the clamp 58. When the positioning block 511 contacts the box body 1, the clamp 58 will not disengage from the box body 1, ensuring that the clamp 58 will not be bent due to collision when the box body 1 is assembled. When the positioning block 511 aligns with the positioning opening 510, the clamp 58 will not be subjected to force, so that the box body 1 is not easy to move after assembly.
[0027] A fixing rod 513 is fixed inside the housing 1. The slider 56 is slidably connected to the fixing rod 513, which ensures the stability of the slider 56. A spring 514 is fixed inside the slider 56. The spring 514 is hidden inside the slider 56 to assist the slider 56 in sliding and also to protect the spring 514.
[0028] The side of the box body 1 has a notch 512, and the pressing rod 52 is located in the notch 512. When the connector 53 is connected to the pressing rebound device 51, the end face of the pressing rod 52 will not protrude from the surface of the box body 1, so as to avoid the pressing rod 52 being pressed due to bumps during transportation.
[0029] Specifically, when the boxes 1 are stacked and spliced, the positioning block 511 will align with the positioning port 510, and then the locking piece 58 will align with the slot 59 and insert into the slot 59. Then, the pressing rod 52 will be pressed, so that the connecting head 53 will align with the pressing rebound device 51, thereby locking the pressing rod 52. During the pressing of the pressing rod 52, the fixing plate 54 will be pushed, causing the connecting rod 55 to slide. The connecting rod 55 will slide along the inner side of the connecting groove 57, and then push the slider 56, causing the locking piece 58 to slide. The locking piece 58 will be locked in the slot 59 to achieve splicing limit after the boxes 1 are stacked, so that the stacked boxes 1 are less likely to slip sideways, making the boxes 1 more stable during transportation.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 layered preservation device for cold chain logistics, comprising a box body (1), a door (2) provided on the box body (1), an inner cavity (3) provided in the box body (1), and a layered plate (4) provided in the inner cavity (3), characterized in that: It also includes a splicing structure (5), which is provided in the box (1). The splicing structure (5) includes a press rebound device (51), which is fixed in the box (1). A pressing rod (52) is connected in the box (1). A connector (53) is provided at the end of the pressing rod (52). A fixing plate (54) is provided on the surface of the pressing rod (52). A connecting rod (55) is provided on the fixing plate (54). A slider (56) is connected in the box (1). A connecting groove (57) is provided in the slider (56). A clip (58) is provided on the surface of the slider (56). A slot (59) is provided at the lower end of the box (1).
2. The layered preservation device for cold chain logistics according to claim 1, characterized in that: There are two sliders (56), located at the left and right ends of the pressing rod (52) respectively. The sliders (56) located at the left and right ends of the pressing rod (52) have the same structure.
3. The layered preservation device for cold chain logistics according to claim 1, characterized in that: The connecting groove (57) is inclined, and the connecting rod (55) is connected to the connecting groove (57).
4. The layered preservation device for cold chain logistics according to claim 1, characterized in that: The lower end of the box (1) is provided with a positioning port (510), and the top of the box (1) is provided with a positioning block (511).
5. A layered preservation device for cold chain logistics according to claim 4, characterized in that: The height of the positioning block (511) is higher than the height of the card (58).
6. The layered preservation device for cold chain logistics according to claim 1, characterized in that: The housing (1) is fixed with a fixing rod (513) inside, and the slider (56) is slidably connected to the fixing rod (513).
7. A layered preservation device for cold chain logistics according to claim 6, characterized in that: A spring (514) is fixed inside the slider (56), and the spring (514) is hidden inside the slider (56).
8. A layered preservation device for cold chain logistics according to claim 1, characterized in that: The box body (1) has a notch (512) on its side, and the pressing rod (52) is located in the notch (512).