Tray transfer device

Abstract

The utility model relates to a tray transfer device which comprises a tray frame, a cover plate is arranged on the top of the tray frame, a fork tooth taking and placing part is arranged on the tray frame, at least one containing groove is formed in the tray frame, and a cold storage box is arranged in the containing groove. The side face of the tray frame is provided with a first opening allowing the cold storage box to enter and exit from the containing groove. The number of the cold storage boxes can be automatically combined according to different items, the use requirements of different temperatures are met, meanwhile, the use number and the storage positions of the cold storage boxes can be determined according to the size of objects to be transferred, waste of cold storage materials is avoided, or partition temperature control is achieved, and the cold storage box is convenient to use. And when the cold storage box 4 is disassembled and assembled, the to-be-transferred objects placed on the cover plate 2 do not need to be taken down, and the overall use convenience and reliability can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of pallet technology, and in particular to a pallet transfer device. Background Technology

[0002] Traditional pallets serve only a basic load-bearing function in transshipment. Especially when transshipping low-temperature goods, the long transportation time, wide geographical area, and significant changes in surrounding climate can easily cause uneven temperature distribution and large temperature fluctuations in the goods being transported, failing to meet the low-temperature and constant-temperature requirements and affecting the quality of the transported goods.

[0003] With the improvement of people's living standards, my country has a broad and sustained demand for cold chain logistics for perishable foods. Currently, the annual output of various perishable foods reaches 1.1 billion tons, with transportation demand exceeding 400 million tons. The total capacity of various cold storage facilities reaches 30 million tons, and the number of pallets used exceeds 100 million. However, due to improper operation measures or inadequate performance of refrigeration or transportation equipment, the energy consumption of cold chain operations remains high. The actual cold chain logistics volume is less than one-third of the demand, and the spoilage rate of various perishable foods is as high as 15% to 30%, resulting in direct economic losses of hundreds of billions of yuan annually. This restricts the development of the food industry and agriculture. Furthermore, low energy efficiency leads to increased CO2 emissions, impacting the environment. Improvements are urgently needed.

[0004] Meanwhile, to save energy, cold storage refrigeration and air conditioning technologies and cold storage refrigerated transport are gradually being applied. These technologies utilize off-peak electricity at night to generate refrigerant, which is stored in fixed cold storage devices (such as cold storage tanks, cold storage containers, cold storage balls, cold storage plates, etc.). During the day, the refrigerant is melted to release the stored cold energy, reducing the power load and refrigeration system capacity during peak hours. This not only ensures the continuity and temperature stability of refrigerated transport and guarantees the transport quality of frozen and refrigerated goods, but also significantly reduces operating costs by utilizing off-peak electricity for charging, offering advantages in energy conservation, environmental protection, and low operating expenses. However, this method requires a complex refrigeration system to charge the cold storage device with refrigerant, and existing cold storage devices are immobile. Once removed from the cold storage environment, perishable goods are prone to temperature chain disruption, which is detrimental to the quality and safety of perishable goods. Currently, mobile cold storage pallets that do not require an external refrigeration system urgently need development. However, we should also recognize that existing cold storage pallets suffer from problems such as heavy weight, low charging efficiency, complex structure, high cost, and lack of temperature adjustment.

[0005] Therefore, there is a need for a pallet transfer device that can flexibly assemble cold storage boxes to achieve constant temperature and humidity cooling, short-term cold preservation, and meet the low temperature and constant temperature requirements of the items to be transferred. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a pallet transfer device.

[0007] The technical solution of this utility model is as follows:

[0008] A pallet transfer device includes a pallet frame, a cover plate on the top of the pallet frame, a fork tooth picking and placing part on the pallet frame, at least one receiving slot inside the pallet frame, a cold storage box inside the receiving slot, and a first opening on the side of the pallet frame for the cold storage box to enter and exit the receiving slot.

[0009] As a further improvement of this utility model, a guide component is provided between the receiving groove and the cold storage box.

[0010] As a further improvement of this utility model, the guiding component includes a first guiding groove disposed in the receiving groove and a first guide rail disposed on the cold storage box.

[0011] As a further improvement of this utility model, the first guide rail is disposed at the top or bottom of the cold storage box.

[0012] As a further improvement of this utility model, the first guide rail is a dovetail guide rail, and the first guide groove is a dovetail guide groove.

[0013] As a further improvement of this utility model, the guiding component includes a second guide rail disposed in the receiving groove and a second guide groove disposed on the cold storage box, the second guide groove being disposed at the top or bottom of the cold storage box.

[0014] As a further improvement of this utility model, the receiving slot is located near the top of the tray frame.

[0015] As a further improvement of this utility model, the interior of the cold storage box is provided with a receiving space, and at least one end of the cold storage box is provided with a second opening communicating with the receiving space and an end cap for sealing the second opening.

[0016] As a further improvement of this utility model, the bottom of the tray frame is provided with multiple support legs, and the fork tooth picking and placing part is formed between adjacent support legs.

[0017] As a further improvement of this utility model, the cover plate is provided with several ventilation holes.

[0018] According to the above-described solution, the beneficial effects of this utility model are as follows:

[0019] 1. The pallet frame and cover of this utility model are made of high-density polyethylene (HDPE), which has higher density and load-bearing capacity, good low-temperature resistance, and is suitable for various low-temperature environments. It can adapt to a minimum temperature of about -40℃, thus improving the service life of the pallet.

[0020] 2. This utility model places the phase change material in an independent cold storage box. Several cold storage boxes can be combined into a cold storage module and then placed inside the tray. Each cold storage box has a separate inlet for storing and retrieving the phase change material. The cold storage box can effectively prevent the phase change material from overflowing and improve the overall durability.

[0021] 3. Each cold storage box is a standardized design, and the number of cold storage boxes can be combined according to different projects to meet the usage requirements of different temperatures. At the same time, the number of cold storage boxes used and their storage location can be determined according to the size of the items to be transported, so as to avoid waste of cold storage materials or to achieve zoned temperature control.

[0022] 4. The cold storage box 4 can be disassembled and assembled by opening the first opening on the side of the tray frame 1. When disassembling and assembling the cold storage box 4, it is not necessary to remove the items to be transferred placed on the cover plate 2, which can further improve the overall ease of use and reliability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention, showing the separation of the tray frame and the cover plate;

[0025] Figure 3 This is a structural cross-sectional view of the present invention;

[0026] Figure 4 This is a structural schematic diagram of the pallet rack of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the cold storage box of this utility model.

[0028] In the diagram: 1. Pallet rack; 11. Receiving slot; 12. First guide slot; 13. Second guide rail; 2. Cover plate; 21. Ventilation hole; 3. Fork tooth picking and placing part; 4. Cold storage box; 41. First guide rail; 42. Second guide slot; 43. Second opening; 5. Support leg. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] See Figure 1-4. This utility model provides a pallet transfer device, including a pallet frame 1, with a cover plate 2 on the top of the pallet frame 1. Items to be transferred are placed on the cover plate 2. Preferably, the pallet frame 1 and the cover plate 2 are made of high-density polyethylene (HDPE), which has higher density and load-bearing capacity, good low-temperature resistance, and is suitable for various low-temperature environments, with a minimum temperature of approximately -40℃, thus improving the service life of the pallet. The pallet frame 1 is provided with a fork tooth picking and placing part 3, into which the fork teeth of a forklift extend to complete the handling of the pallet frame 1, the cover plate 2, and the items to be transferred placed on the cover plate 2. The pallet frame 1 has at least one receiving slot 11 inside, and a cold storage box 4 is provided in the receiving slot 11. The cold storage box 4 stores a phase change material. The phase change material has good thermal conductivity and can release a large amount of latent heat of phase change during the process of state change, achieving constant temperature cold release and short-term heat preservation without mechanical refrigeration. The cold storage box 4 has a first opening on its side for the cold storage box 4 to enter and exit the receiving slot 11, which allows for the assembly and disassembly of the cold storage box 4. When assembling and disassembling the cold storage box 4, it is not necessary to remove the items to be transported placed on the cover plate 2, which can further improve the overall ease of use and reliability. Moreover, each cold storage box 4 is a standardized design. When two items to be transported are placed on the tray 1 at the same time, and the temperature requirements of the two items are different, the number of cold storage boxes 4 under the items to be transported and the capacity of the phase change material in the cold storage box 4 can be adjusted to adapt to the temperature control required by the items to be transported. This utility model can combine the number of cold storage boxes 4 according to different projects to meet the usage requirements of different temperatures. At the same time, it can also determine the number and storage location of the cold storage boxes 4 according to the size of the items to be transported, avoiding the waste of cold storage material, or achieving zoned temperature control.

[0033] As one embodiment of this utility model, the fork tooth picking and placing part 3 can adopt the following two structures:

[0034] Structure 1: The bottom of the pallet frame 1 is provided with multiple support legs 5, and the fork tooth picking and placing parts 3 are formed between adjacent support legs 5. Of course, multiple support legs 5 form multiple fork tooth picking and placing parts 3 with each other. During operation, the operator can select the appropriate fork tooth picking and placing part 3 according to the size of the fork tooth for insertion.

[0035] Structure 2: The side of the pallet rack 1 is provided with multiple fork tooth insertion ports, and the inside of the pallet rack 1 is provided with a fork tooth channel that communicates with the fork tooth insertion ports. The fork tooth insertion ports and the fork tooth channel together form the fork tooth picking and placing part 3.

[0036] As one embodiment of this utility model, a guide component is provided between the receiving tank 11 and the cold storage box 4. The guide component can adopt various structures, such as guide rail structure, guide column structure, etc. By adding the guide component, it is convenient for workers to disassemble and install the cold storage box 4. At the same time, it can also avoid unnecessary scratches and wear between the cold storage box 4 and the side wall of the receiving tank 11 during the disassembly and assembly process, thereby improving the service life of the cold storage box 4 and the receiving tank 11.

[0037] As one embodiment of this utility model, considering the installation reliability and ease of use of the cold storage box 4, the guide assembly adopts a guide rail structure, and the guide assembly can adopt the following various structures:

[0038] Structure 1: The guide assembly includes a first guide groove 12 disposed in the receiving groove 11 and a first guide rail 41 disposed on the cold storage box 4. When installing the cold storage box 4, the operator aligns the first guide rail 41 with the first guide groove 12 and inserts the first guide rail 41 into the first guide groove 12, and then pushes the cold storage box 4 as a whole into the receiving groove 11. Preferably, the first guide rail 41 is disposed at the top or bottom of the cold storage box 4.

[0039] Structure 2: The guide assembly includes a second guide rail 13 disposed in the receiving groove 11 and a second guide groove 42 disposed on the cold storage box 4. When installing the cold storage box 4, the operator aligns the second guide groove 42 with the second guide rail 13 and fits the second guide groove 42 onto the second guide rail 13, and then pushes the cold storage box 4 into the receiving groove 11 as a whole. Preferably, the second guide groove 42 is disposed at the top or bottom of the cold storage box 4.

[0040] Structure 3: The guiding assembly includes a first guide groove 12 disposed in the receiving groove 11, a first guide rail 41 disposed on the cold storage box 4, a second guide rail 13 disposed in the receiving groove 11, and a second guide groove 42 disposed on the cold storage box 4. When installing the cold storage box 4, the operator aligns the first guide rail 41 with the first guide groove 12 and inserts the first guide rail 41 into the first guide groove 12. At the same time, the operator aligns the second guide groove 42 with the second guide rail 13 and fits the second guide groove 42 onto the second guide rail 13. After the guide rail and guide groove structures at both locations are prepared, the cold storage box 4 is pushed into the receiving groove 11 as a whole.

[0041] This utility model adopts structure three, in which two sets of guide rail and guide groove structures, namely the first guide groove 12, the first guide rail 41, and the second guide rail 13 and the second guide groove 42, work together to further improve the guiding effect on the cold storage box 4. When one of the first guide groove 12, the first guide rail 41, the second guide rail 13, and the second guide groove 42 is damaged, the other set of guide rail and guide groove structures can still continue to guide the cold storage box 4, which can maintain the normal disassembly and installation of the cold storage box 4, realize functional redundancy, and avoid affecting the use of the cold storage box 4. When the cold storage box 4 is no longer needed, the staff can take out the cold storage box 4 and perform corresponding maintenance, which can effectively improve the utilization efficiency of the cold storage box 4.

[0042] As one embodiment of this utility model, the first guide rail 41 and the second guide groove 42 can be configured in the following ways:

[0043] Method 1: The first guide rail 41 and the second guide groove 42 are respectively set at the top of the cold storage box 4 and the other is set at the bottom of the cold storage box 4;

[0044] Method 2: The first guide rail 41 and the second guide groove 42 are simultaneously set at the top or bottom of the cold storage box 4;

[0045] Method 3: The first guide rail 41 and the second guide groove 42 are respectively set at the top or bottom of the cold storage box 4 and the other is set at the left or right side wall of the cold storage box 4.

[0046] Method 4: The first guide rail 41 and the second guide groove 42 are simultaneously set on the left or right side wall of the cold storage box 4.

[0047] This utility model adopts the first method, in which the two are respectively set at the top and bottom of the cold storage box 4, which can guide the top and bottom of the cold storage box 4 at the same time, improve the balance and stability of the cold storage box 4 during disassembly and assembly, and at the same time avoid occupying the lateral space of the tray frame 1, reducing the processing difficulty and processing cost of the receiving slot 11.

[0048] As one embodiment of this utility model, the first guide rail 41, the second guide rail 13, the first guide groove 12, and the second guide groove 42 can adopt various shapes, such as rectangles, triangles, arcs, etc. Preferably, the first guide rail 41 and the second guide rail 13 are dovetail guide rails, and the first guide groove 12 and the second guide groove 42 are dovetail guide grooves. The dovetail structure can limit the up-and-down shaking of the cold storage box 4 during disassembly and assembly, further improving the guiding effect on the cold storage box 4. Of course, it can be selected according to specific usage requirements, and the two can adopt different shapes, such as the first guide rail 41 adopting a dovetail shape and the second guide rail 13 adopting a rectangle, etc.

[0049] As an embodiment of this utility model, a limiting component, such as a buckle, a rotatable limiting block, or a movable limiting block, is provided at the first opening. When the cold storage box 4 is inserted into the receiving groove 11, the limiting component limits the cold storage box 4 to prevent it from sliding or falling off, thereby improving the installation stability and reliability of the cold storage box 4.

[0050] As one embodiment of this utility model, the first opening can be located in the following two positions:

[0051] Position 1: The first opening is set on the side of the tray frame 1, that is, the cold storage box 4 is inserted or removed from the side of the tray frame 1;

[0052] Position 2: The first opening is located at the bottom of the tray rack 1, that is, the bottom of the cold storage box 4-layer tray rack 1 for insertion or removal.

[0053] This utility model adopts position one, which provides convenience for workers to disassemble and assemble the cold storage box 4 compared to position two. Since the cold storage box 4 is inserted or removed from the side of the tray frame 1, it is not necessary to remove the items to be transferred placed on the cover plate 2 when disassembling and assembling the cold storage box 4, which can further improve the overall ease of use and reliability.

[0054] As one embodiment of this utility model, the receiving slot 11 is close to the top of the tray frame 1, which allows the cold storage box 4 to be close to the items to be transferred, thereby increasing the temperature regulation of the items to be transferred and improving the overall reliability and stability of use.

[0055] As an embodiment of the present invention, the cold storage box 4 has an internal accommodating space. At least one end of the cold storage box 4 is provided with a second opening 43 communicating with the accommodating space and an end cap for sealing the second opening 43. Each cold storage box 4 has a separate second opening 43. The phase change material is poured into the accommodating space through the second opening 43 and stored to achieve the cold storage effect. The end cap on the cold storage box 4 can effectively prevent the phase change material from overflowing and improve the overall durability.

[0056] As an embodiment of this utility model, the cover plate 2 is provided with a plurality of vent holes 21. The vent holes 21 can further improve the heat exchange efficiency between the cold storage box 4 and the items to be transferred, further improve the overall cold storage capacity, and improve the overall reliability and stability.

[0057] In summary, this utility model provides a pallet transfer device that can customize the number of cold storage boxes 4 according to different projects to meet varying temperature requirements. It can also determine the number and storage location of the cold storage boxes 4 based on the size of the items to be transferred, avoiding waste of cold storage materials or enabling zoned temperature control. The addition of a guide component facilitates the disassembly and installation of the cold storage boxes 4 by workers, preventing unnecessary scratches and wear between the cold storage boxes 4 and the sidewalls of the receiving tank 11 during disassembly and installation, thus improving the service life of both the cold storage boxes 4 and the receiving tank 11. The first guide rail 41 and the second guide groove 42, one located at the top of the cold storage box 4 and the other at the bottom of the cold storage box 4, can simultaneously... The top and bottom of the cold storage box 4 are guided to improve the balance and stability of the cold storage box 4 during disassembly and assembly, while also avoiding the occupation of the lateral space of the pallet frame 1 and reducing the processing difficulty and cost of the receiving slot 11. The first opening is set on the side of the pallet frame 1, which can provide convenience for workers to disassemble and assemble the cold storage box 4. Since the cold storage box 4 is inserted or removed from the side of the pallet frame 1, it is not necessary to remove the items to be transferred placed on the cover plate 2 when disassembling and assembling the cold storage box 4, which can further improve the overall ease of use and reliability. The receiving slot 11 is close to the top of the pallet frame 1, which allows the cold storage box 4 to be close to the items to be transferred, improving the strength of temperature regulation of the items to be transferred and improving the overall reliability and stability of use.

[0058] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A pallet transfer device, characterized in that, The pallet includes a tray frame (1), the top of which is provided with a cover plate (2), the tray frame (1) is provided with a fork tooth picking and placing part (3), the inside of the tray frame (1) is provided with at least one receiving groove (11), the receiving groove (11) is provided with a cold storage box (4), and the side of the tray frame (1) is provided with a first opening for the cold storage box (4) to enter and exit the receiving groove (11).

2. The pallet transfer device according to claim 1, characterized in that, A guide assembly is provided between the receiving tank (11) and the cold storage box (4).

3. The pallet transfer device according to claim 2, characterized in that, The guiding assembly includes a first guide groove (12) disposed in the receiving groove (11) and a first guide rail (41) disposed on the cold storage box (4).

4. The pallet transfer device according to claim 3, characterized in that, The first guide rail (41) is located at the top or bottom of the cold storage box (4).

5. The pallet transfer device according to claim 3, characterized in that, The first guide rail (41) is a dovetail guide rail, and the first guide groove (12) is a dovetail guide groove.

6. The pallet transfer device according to claim 2 or 3, characterized in that, The guiding component includes a second guide rail (13) disposed in the receiving groove (11) and a second guide groove (42) disposed on the cold storage box (4), wherein the second guide groove (42) is disposed at the top or bottom of the cold storage box (4).

7. The pallet transfer device according to claim 1, characterized in that, The receiving slot (11) is located near the top of the tray frame (1).

8. The pallet transfer device according to claim 1, characterized in that, The cold storage box (4) has an internal accommodating space, and at least one end of the cold storage box (4) has a second opening (43) communicating with the accommodating space and an end cap for sealing the second opening (43).

9. The pallet transfer device according to claim 1, characterized in that, The bottom of the tray frame (1) is provided with multiple support legs (5), and the fork tooth pick-and-place section (3) is formed between adjacent support legs (5).

10. The pallet transfer device according to claim 1, characterized in that, The cover plate (2) is provided with several ventilation holes (21).

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