Hydraulic folding mobile refrigeration container

Abstract

The utility model belongs to cold chain logistics equipment field provides a kind of hydraulic folding movable refrigeration box, including support frame, it includes bottom support frame and top support frame, between two it is equipped with several lifting mechanisms, the heat preservation box body includes heat preservation bottom plate, heat preservation top plate and flexible heat preservation side wall board, the heat preservation bottom plate is fixed in bottom support frame, the heat preservation top plate is fixed in top support frame, the refrigerating plant is located on heat preservation box body, the electric cabinet is located in top support frame;The utility model is folded by hydraulic drive, and flexible heat preservation and integrated control are flexibly refrigerated, are opened and closed under the action of linear driving element using the shearing type frame of lifting mechanism, drive support frame folding / unfolding, greatly reduce transportation volume, reliable sealing is realized using flexible heat preservation side wall board and corner sealing structure through sticky buckle, reduce user use threshold and cost by modular design.

Description

Technical Field

[0001] This utility model belongs to the field of cold chain logistics equipment, specifically relating to a foldable, easy-to-transport and relocation hydraulic folding mobile refrigerated box. Background Technology

[0002] In the cold chain logistics sector, refrigeration equipment is crucial for ensuring the quality of fresh produce, pharmaceuticals, and other products. Current technologies primarily rely on fixed cold storage facilities, refrigerated trucks, and refrigerated containers for low-temperature storage and transportation. Fixed cold storage facilities maintain low temperatures through wall insulation and refrigeration systems, making them suitable for large-scale storage; refrigerated trucks integrate mobile refrigeration units to meet short-distance transportation needs.

[0003] However, existing fixed cold storage facilities are immobile, have high construction costs and complex approval processes, making them unsuitable for temporary or dispersed cold chain needs. Refrigerated trucks have fixed spaces, resulting in low transportation efficiency when returning empty, and are limited by vehicle type, preventing flexible deployment to roadless areas. While containerized refrigerated boxes can be transported, they are difficult to fold and store, occupy a large amount of space when transporting empty boxes, and require specialized equipment for installation after unfolding, making operation cumbersome. Furthermore, the insulation structure of traditional refrigeration equipment is mostly a rigid, fixed design, easily damaged by collisions during relocation. The refrigeration system is controlled separately from the supporting structure, resulting in low integration and failing to meet the multiple demands of modern cold chain logistics for flexibility, economy, and rapid deployment. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a hydraulically folding mobile refrigerated container, which solves the problems of inconvenient movement, low turnover efficiency, and high initial investment in existing refrigeration facilities.

[0005] A hydraulically folding mobile refrigerator includes:

[0006] The support frame includes a bottom support frame and a top support frame, with several lifting mechanisms between them for driving the top support frame to move up and down along the Z-axis;

[0007] The insulated box includes an insulated bottom plate, an insulated top plate, and flexible insulated side wall panels. The insulated bottom plate is fixed to the bottom support frame, and the insulated top plate is fixed to the top support frame.

[0008] A refrigeration unit, located on the insulated box, is used to control the internal temperature;

[0009] The electrical control box, located on the top support frame, integrates the control system for the lifting mechanism and the refrigeration unit.

[0010] Preferably, the lifting mechanism is a single-layer scissor-type hydraulic lifting structure, which includes a scissor frame, a linear drive component, and an auxiliary telescopic rod. The linear drive component is an electro-hydraulic push rod, with its two ends hinged to the upper and lower arms of the scissor frame, respectively.

[0011] Preferably, the flexible thermal insulation side wall panel includes a short-side thermal insulation side wall panel and a long-side thermal insulation side wall panel, and adopts a structural design in which a flexible thermal insulation layer is wrapped with a protective fabric. The short-side thermal insulation side wall panel is provided with a door.

[0012] Preferably, the flexible thermal insulation side wall panel is provided with a connecting component at its edge. The connecting component is a hook and loop fastener used to fix it to the thermal insulation base plate and the thermal insulation top plate. The corner of the wall panel is provided with a detachable thermal insulation sealing structure.

[0013] Preferably, both the insulation base plate and the insulation top plate are double-sided color steel polyurethane sandwich panels.

[0014] Preferably, the refrigeration device is an integrated unit comprising a refrigeration compressor, an evaporator, a condenser, a throttling mechanism, and accessories.

[0015] Preferably, the bottom support frame and the top support frame are provided with short support columns with fixing holes at the four corners, which can be locked by fixing pins when folded.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model uses a hydraulic lifting mechanism to drive the support frame to rise and fall, which can be unfolded to a height of about 3 meters and folded to about 1.25 meters, reducing the space volume. A standard truck can carry 2-3 refrigerated boxes. The hydraulically driven unfolding / folding is simple and efficient to operate, and can be quickly unfolded for use, reducing on-site installation difficulty and labor costs.

[0018] 2. This utility model avoids the complex approvals (such as fire protection) involved in the construction of large fixed cold storage through modular design, reduces the threshold and cost for users, has low requirements for installation site, and can work as long as electricity is provided.

[0019] 3. This utility model integrates the control of the hydraulic system and the refrigeration system into a single electrical control box, realizing one-button operation, with a simple interface, reducing the risk of misoperation, and can be remotely controlled via mobile phone, and is equipped with complete safety protection functions.

[0020] 4. This utility model uses a hook and loop fastener sealing design at the wall joints to ensure a reliable seal at the joints after the side wall panels are unfolded. The detachable thermal insulation sealing strip assembly is firmly attached to the folded corners of the wall panels with hook and loop fasteners, effectively sealing the gaps at these locations, significantly improving the overall thermal insulation performance and sealing performance, and reducing cold loss. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention in its unfolded state;

[0022] Figure 2 This is a side view of the structure of the present invention in its folded state;

[0023] Figure 3 This is a side view of the structure of the present invention in its unfolded state;

[0024] Figure 4 This is a front view structural diagram of the present invention in its unfolded state;

[0025] Figure 5 This is a rear view structural diagram of the present invention in its unfolded state.

[0026] In the picture:

[0027] 1. Bottom support frame; 2. Top support frame; 3. Lifting mechanism; 301. Scissor frame; 302. Linear drive component; 303. Auxiliary telescopic rod; 4. Insulated bottom plate; 5. Insulated top plate; 6. Flexible insulated side wall panel; 601. Short side insulated side wall panel; 602. Long side insulated side wall panel; 7. Electrical control box; 8. Refrigeration unit; 9. Door. Detailed Implementation

[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0029] As attached Figure 1 To be continued Figure 5 As shown:

[0030] This utility model provides a hydraulically folding mobile refrigerated box, including a support frame, an insulated box body, a refrigeration device 8, and a control system, the specific structure of which is as follows:

[0031] The support frame is the load-bearing structure of the entire equipment, including the bottom support frame 1, the top support frame 2, and the lifting mechanism 3 that connects the two.

[0032] As shown in the attached diagram: The bottom support frame 1 is made of Q345 channel steel welded together to form a track. Two Q235 material 8# support channel steels are welded inside along both the length and width directions to enhance load-bearing capacity. The frame dimensions are 6000mm long × 2500mm wide. The length of the frame can be customized, and the width is adapted to the transport vehicle. Square support columns made of Q345 material are welded to the four corners of the bottom. Each column has fixing holes and pins at the top and bottom to ensure stability in the folded state. The top is bolted to the insulation base plate 4, providing bottom support for the insulation box.

[0033] The structure of the top support frame 2 is similar to that of the bottom support frame 1. It is made of the same steel and welded together. The internal support components are welded to fix the heat-insulating top plate 5. The four corners are also equipped with short support columns, which connect with the short columns of the bottom support frame 1 when folded to reduce shaking during transportation.

[0034] As attached Figure 1 To be continued Figure 3 As shown: The lifting mechanism 3 is a single-layer scissor hydraulic lifting structure, installed on the two long sides of the refrigerator. Depending on the length of the long side, 2-4 sets are adapted to each side. It includes a scissor frame 301, a linear drive component 302 and an auxiliary telescopic rod 303.

[0035] The scissor frame 301 is made of high-strength alloy steel, with both ends hinged to the tracks of the bottom support frame 1 and the top support frame 2, respectively, and can slide along the tracks to achieve folding / unfolding.

[0036] The linear drive component 302 is an integrated bidirectional electro-hydraulic push rod, with both ends hinged to the upper and lower arms of the scissor frame 301. By telescopically driving the scissor frame 301 to open and close, the top support frame 2 can be raised and lowered. The unfolded height is about 3m, and the folded height is about 1.25m.

[0037] The auxiliary telescopic rod 303 is hinged at both ends to the scissor frame 301 to enhance stability during the lifting process and prevent the frame from tilting.

[0038] The insulated box is the main body of the cold storage space, including an insulated bottom plate 4, an insulated top plate 5, flexible insulated side wall panels 6 and a door 9, and features lightweight, heat preservation and detachability.

[0039] Both the insulated base plate 4 and the insulated top plate 5 are made of double-sided color steel polyurethane sandwich panels. The color steel thickness is ≥0.5mm, and the total thickness is 100mm. The rigid structure ensures strength, and the polyurethane sandwich improves insulation. The insulated base plate 4 is fixed to the bottom support frame 1 with bolts, and the insulated top plate 5 is fixed to the top support frame 2 with bolts.

[0040] The flexible insulated side wall panel 6 includes two short-side insulated side wall panels 601 and two long-side insulated side wall panels 602. Both are structures with a flexible insulation layer wrapped in protective fabric. The inner layer is a 150mm thick closed-cell rubber-plastic insulation material, and the outer layer is a scratch-resistant, fire-retardant, and waterproof composite fabric, treated with flame retardant technology, and has an IP65 waterproof rating. Industrial hook-and-loop fasteners are sewn along the edges of the side wall panels to adhere and secure them to the female sides of the hook-and-loop fasteners on the edges of the insulation base plate 4 and the insulation top plate 5, ensuring a tight seal when unfolded. After disassembly, they can be laid flat in the middle of the insulation base plate 4, reducing the folded volume.

[0041] As attached Figure 4 As shown: The door 9 is installed on one of the short side insulation wall panels 601. It is a combination structure of flexible insulation material and metal frame, with sealing strips on the edges, which facilitates the entry and exit of personnel / goods and ensures the airtightness when closed.

[0042] The thermal insulation and sealing structure features a detachable thermal insulation sealing strip assembly at the corner of the thermal insulation box. This assembly is made of closed-hole rubber and plastic material, covered with a waterproof fabric on the outside, and has a hook and loop fastener sewn on one side. This fastener fits into the hook and loop fastener at the corner of the side wall panel, effectively sealing the corner gaps and reducing cold loss.

[0043] The refrigeration unit 8 is an integrated unit consisting of a scroll compressor, an ultra-thin evaporator, an air-cooled condenser, and other components. It is installed on the outside of the top support frame 2 without affecting folding. The scroll compressor is suitable for a refrigeration temperature range of -5℃ to 20℃, is low in cost and highly reliable, and is installed in a sealed housing to reduce noise.

[0044] The ultra-thin evaporator is installed on the inner top of the insulated top plate 5. It adopts a copper tube and aluminum fin structure and is equipped with an axial flow fan to ensure uniform distribution of cooling. The defrosting method is electric defrosting.

[0045] The air-cooled condenser is installed on the outside of the top support frame 2. It adopts a flat copper tube and aluminum fin structure and is equipped with a low-noise centrifugal fan, which reduces space occupation and has high heat dissipation efficiency.

[0046] Other components include throttling mechanisms (such as expansion valves), receivers, dryer filters, refrigerant lines, etc.

[0047] The electrical control box 7 is installed on the outside of the top support frame 2. It adopts an integrated control system, which integrates the drive control of the lifting mechanism and the operation control of the refrigeration unit into one electrical control box 7. It includes a PLC controller, touch screen, sensors and protection modules, supports mobile APP connection, and can remotely monitor the temperature inside the box, equipment status and operate the equipment.

[0048] Working principle: During transportation, the lifting mechanism 3 retracts, and the top support frame 2 descends to be close to the bottom support frame 1 (total height approximately 1.25m); the flexible insulated side wall panel 6 and the insulated sealing strip assembly 10 are disassembled and placed flat in the middle of the insulated base plate 4; the folded state is locked by the fixing pins of the bottom support frame 1, and a standard truck can carry 2-3 units.

[0049] After transportation to the destination, loosen the fixing pins and operate the lifting mechanism 3 via the electrical control box 7 to extend it, allowing the top support frame 2 to rise smoothly to a height of 3m. Remove the flexible insulated side wall panel 6 and secure it to the insulated base plate 4 and insulated top plate 5 using edge hook and loop fasteners. Install the door 9 and zip it up. Attach the insulated sealing strip assembly 10 to the four corners and secure it with hook and loop fasteners. Connect the 220V / 380V power supply, set the target temperature in the electrical control box 7, start the refrigeration unit 8, and put it into use after reaching the set temperature.

[0050] The embodiments of this utility model are given for the purpose of illustration and description. Although the embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Any changes, modifications, substitutions and variations made by those skilled in the art to the above embodiments within the scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydraulically folding mobile refrigerator, characterized in that, include: The support frame includes a bottom support frame (1) and a top support frame (2), with several lifting mechanisms (3) provided between them for driving the top support frame (2) to move up and down along the Z-axis; The insulated box includes an insulated bottom plate (4), an insulated top plate (5), and a flexible insulated side wall plate (6). The insulated bottom plate (4) is fixed to the bottom support frame (1), and the insulated top plate (5) is fixed to the top support frame (2). A refrigeration device (8) is installed on the insulated box to control the internal temperature; The electrical control box (7) is located on the top support frame (2) and integrates the control system of the lifting mechanism (3) and the refrigeration device (8).

2. The hydraulically folding mobile refrigerator as described in claim 1, characterized in that, The lifting mechanism (3) is a single-layer scissor hydraulic lifting structure, which includes a scissor frame (301), a linear drive (302) and an auxiliary telescopic rod (303). The linear drive (302) is an electric hydraulic push rod, with both ends hinged to the upper and lower arms of the scissor frame (301).

3. The hydraulically folding mobile refrigerator as described in claim 1, characterized in that, The flexible thermal insulation side wall panel (6) includes a short side thermal insulation side wall panel (601) and a long side thermal insulation side wall panel (602), and adopts a structural design of wrapping the flexible thermal insulation layer with protective fabric. The short side thermal insulation side wall panel (601) is provided with a door (9).

4. A hydraulically folding mobile refrigerator as described in claim 3, characterized in that, The flexible thermal insulation side wall panel (6) is provided with a connecting component on its edge. The connecting component is a hook and loop fastener, which is used to fix it to the thermal insulation bottom plate (4) and the thermal insulation top plate (5). A detachable thermal insulation sealing structure is provided at the corner of the wall panel.

5. A hydraulically folding mobile refrigerator as described in claim 1, characterized in that, Both the insulation base plate (4) and the insulation top plate (5) are double-sided color steel polyurethane sandwich panels.

6. A hydraulically folding mobile refrigerator as described in claim 1, characterized in that, The refrigeration device (8) is an integrated unit consisting of a refrigeration compressor, an evaporator, a condenser, a throttling mechanism, and accessories.

7. A hydraulically folding mobile refrigerated box as described in claim 1, characterized in that, The bottom support frame (1) and the top support frame (2) are provided with short support columns with fixing holes at the four corners, which can be locked by fixing pins when folded.

Images