Butt-joint unloading plate for refrigerator car

By designing a docking unloading platform with lifting and fixing components on refrigerated trucks, the problem of time-consuming and labor-intensive unloading of refrigerated trucks has been solved, achieving efficient unloading and convenient replacement, and reducing the burden on staff.

CN223934763UActive Publication Date: 2026-02-24MINQUAN XINLI REFRIGERATION EQUIP SALES CO LTD
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Patent Information

Application Number
CN202521062137.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-02-24
Estimated Expiration
2035-05-27

AI Technical Summary

Technical Problem

The current unloading process for refrigerated trucks is time-consuming and labor-intensive, placing a heavy burden on staff and resulting in low efficiency.

Method used

A docking unloading platform for refrigerated trucks has been designed, equipped with a lifting component and a fixing component. The lifting component adjusts the height of the unloading platform to be flush with the refrigerated truck compartment, and the fixing component facilitates the disassembly, assembly, and replacement of the unloading platform.

Benefits of technology

It improved unloading efficiency, reduced the workload of staff, and enhanced the practicality and adaptability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a butt-joint unloading plate for a refrigerator car, and relates to the technical field of refrigerator cars, the butt-joint unloading plate for the refrigerator car comprises a bottom plate, universal wheels are fixedly connected to four corners of the bottom of the bottom plate, a support plate is arranged right above the bottom plate, and an unloading plate body is arranged right above the support plate. According to the unloading plate, the height position of the unloading plate body can be effectively adjusted through the arranged lifting assembly, so that workers can conveniently unload goods in the refrigerator compartment, the goods unloading efficiency is effectively improved, the workload of the workers is relieved, and the fixing assembly is arranged, so that the unloading plate is convenient to use. According to the unloading plate, the unloading plate body can be conveniently disassembled and assembled by a worker, so that the worker can select the unloading plate body with the appropriate specification according to the specifications of different cargoes, the overall practicability of the device is effectively improved, and the device is simple and clear in structure and easy to use.
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Description

Technical Field

[0001] This utility model relates to the field of refrigerated truck technology, specifically a docking unloading plate for refrigerated trucks. Background Technology

[0002] Refrigerated trucks are enclosed van-type transport vehicles used to maintain the temperature of frozen or fresh goods. Refrigerated trucks are special transport vehicles equipped with refrigeration units and polyurethane insulated compartments. Refrigerated trucks can be classified according to manufacturer, chassis load capacity, and compartment type. When unloading goods from refrigerated trucks, a refrigerated truck docking unloading platform is required.

[0003] Currently, unloading goods inside refrigerated trucks is generally done manually by staff. Since the refrigerated compartment of the vehicle is not on the same plane as the ground, one staff member needs to stand on the compartment while another staff member stands on the ground. The two staff members work together to load and unload the goods. Although this method can effectively unload and load goods, the process is time-consuming and labor-intensive, which not only increases the workload of the staff but also reduces the efficiency of loading and unloading goods.

[0004] Based on this, a docking unloading platform for refrigerated trucks is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a docking and unloading platform for refrigerated trucks to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A docking unloading platform for refrigerated trucks includes a base plate, with casters fixedly connected to the four corners of the bottom of the base plate, a support plate on the top of the base plate, an unloading platform body on the top of the support plate, an mounting plate fixedly connected to the middle of the lower surface of the unloading platform body, a guide groove for the mounting plate to move in the middle of the upper surface of the support plate, an unloading groove on the upper surface of the unloading platform body, and unloading rollers evenly spaced inside the unloading groove.

[0008] The lifting components are symmetrically arranged on the upper surface of the base plate and are used to adjust the height of the unloading platform, thereby facilitating the loading and unloading of goods by the staff.

[0009] The fixing components are symmetrically arranged on the front and rear surfaces of the support plate and are used to fix the mounting plate to the support plate.

[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0011] In one alternative embodiment: the lifting assembly includes adjusting plates symmetrically arranged on the upper surface of the base plate. A bidirectional threaded rod is rotatably connected to the inner left side of each adjusting plate. A connecting frame is fixedly connected to the outer side of each adjusting plate. The other ends of the two bidirectional threaded rods extend to the outside of the adjusting plates and are rotatably connected to the left side surface of the connecting frame. A reciprocating motor is fixedly connected to the left side surface of one of the adjusting plates. The output shaft of the reciprocating motor is fixedly connected to one end of one of the bidirectional threaded rods via a coupling. The two bidirectional threaded rods are connected by a synchronous belt and a pulley drive. Threaded blocks are symmetrically arranged on the outer side of each of the two bidirectional threaded rods. A hinge block is hinged to the upper surface of every two threaded blocks via a connecting rod. A fixing block is fixedly connected to the middle of the bottom of each of the two adjusting plates. The fixing block has an internal groove for the bidirectional threaded rod to move. A telescopic rod is fixedly connected to the middle of the upper surface of the fixing block. The telescopic end of the telescopic rod is fixedly connected to the middle of the lower surface of the hinge block. The upper surfaces of both hinge blocks are fixedly connected to the bottom of the support plate.

[0012] In one alternative: a first bellows cover is fixedly connected to the upper surface of the base plate, and the upper surface of the first bellows cover is fixedly connected to the bottom of the support plate.

[0013] In one alternative embodiment: the fixing assembly includes outer rods symmetrically arranged on the front and rear surfaces of the support plate, with a limiting plate fixedly connected to the other end of each of the outer rods, an abutment plate slidably connected to the outside of every two outer rods, a return spring sleeved on the outside of each of the outer rods, and the return springs abutting between the limiting plate and the abutment plate, a handle fixedly connected to one side of the abutment plate, and insertion rods symmetrically arranged on opposite sides of the two abutment plates, with guide grooves for the insertion rods to move on the front and rear surfaces of the support plate and the mounting plate.

[0014] In one alternative: a second bellows cover is fitted over the exterior of multiple outer rods, and the two ends of the multiple second bellows covers are fixedly connected to the opposite side of the limiting plate and the contact plate, respectively.

[0015] In one alternative: side plates are fixedly connected to the middle of both sides of the outer wall of the base plate, threaded holes for the movement of lead screws are opened through the middle of the upper surface of the two side plates, turntables are fixedly connected to the top of the two lead screws, and contact plates are fixedly connected to the bottom of the two lead screws.

[0016] In one alternative: both contact plates are made of rubber.

[0017] In one alternative: the right side surface of the base plate is symmetrically provided with outer plates, and the upper surfaces of the two outer plates are fixedly connected with connecting sleeves. The interior of the two connecting sleeves is provided with movable rods, and the top ends of the two movable rods are fixedly connected with push handles. The two movable rods are fixedly connected to the connecting sleeves by bolts.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model, through the setting of the lifting component, can effectively adjust the height position of the unloading plate body, thereby enabling the loading and unloading of goods through the unloading plate without the need for manual handling by staff. This not only improves the loading and unloading efficiency of goods, but also reduces the workload of staff and the use of manpower.

[0020] 2. By setting up fixed components, this utility model makes it easy for workers to disassemble and assemble the unloading plate body, thereby enabling workers to select the appropriate unloading plate body according to the different specifications and sizes of the goods, effectively improving the overall practicality of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a cross-sectional structural diagram of the first bellows cover, the second bellows cover, and the adjusting plate in this utility model.

[0023] Figure 3 This is a bottom view of the structure of this utility model.

[0024] Figure 4 for Figure 2 A magnified structural diagram of region A in the middle.

[0025] Figure label annotations:

[0026] 1. Base plate; 2. Casters; 3. First bellows guard; 4. Unloading plate body; 5. Unloading roller; 6. Support plate; 7. Insert rod; 8. Adjusting plate; 9. Two-way threaded rod; 10. Fixing block; 11. Telescopic rod; 12. Connecting frame; 13. Synchronous belt; 14. Pulley; 15. Hinge block; 16. Mounting plate; 17. Side plate; 18. Turntable; 19. Lead screw; 20. Contact plate; 21. Second bellows guard; 22. Reciprocating motor; 23. Threaded block; 24. Connecting rod; 25. Outer rod; 26. Limiting plate; 27. Contact plate; 28. Return spring; 29. ​​Outer plate; 30. Connecting sleeve; 31. Movable rod; 32. Push handle. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In one embodiment, such as Figures 1-4As shown, a docking unloading platform for refrigerated trucks includes a base plate 1, with casters 2 fixedly connected to the four corners of the bottom of the base plate 1, a support plate 6 located on the top of the base plate 1, an unloading platform body 4 located on the top of the support plate 6, an mounting plate 16 fixedly connected to the middle of the lower surface of the unloading platform body 4, a guide groove for the mounting plate 16 to move in the middle of the upper surface of the support plate 6, an unloading groove located on the upper surface of the unloading platform body 4, and unloading rollers 5 evenly spaced inside the unloading groove.

[0029] The lifting components are symmetrically arranged on the upper surface of the base plate 1 and are used to adjust the height of the unloading platform, thereby facilitating the loading and unloading of goods by the staff.

[0030] The fixing components are symmetrically arranged on the front and rear surfaces of the support plate 6 and are used to fix the mounting plate 16 to the support plate 6.

[0031] In this embodiment, when it is necessary to unload goods inside the refrigerated compartment, the height of the unloading plate body 4 is first adjusted by the lifting component. When the unloading plate body 4 is adjusted to be on the same plane as the refrigerated compartment, the staff places the goods inside the refrigerated compartment on the unloading plate body 4. After the goods are placed, the lifting component starts to operate again. At this time, the lifting component will drive the unloading plate body 4 and the goods placed on the unloading plate body 4 to move down together, so as to conveniently and effectively unload the goods, effectively improve the unloading efficiency, reduce the workload of the staff, and improve the overall practicality of the device. Through the setting of the fixing component, the unloading plate body 4 can be conveniently fixed and installed. At the same time, it is convenient for the staff to change the specifications of the unloading plate body 4 according to the different specifications of the goods, further improving the overall practicality of the device.

[0032] In one embodiment, such as Figure 2 and Figure 3As shown, the lifting assembly includes adjusting plates 8 symmetrically arranged on the upper surface of the base plate 1. Two bidirectional threaded rods 9 are rotatably connected to the inner left side of each adjusting plate 8. A connecting frame 12 is fixedly connected to the outside of each adjusting plate 8. The other ends of the two bidirectional threaded rods 9 extend to the outside of the adjusting plate 8 and are rotatably connected to the left side surface of the connecting frame 12. A reciprocating motor 22 is fixedly connected to the left side surface of one of the adjusting plates 8. The output shaft of the reciprocating motor 22 is fixedly connected to one end of one of the bidirectional threaded rods 9 via a coupling. The two bidirectional threaded rods 9 are connected by a synchronous belt 13 and a pulley 14. Threaded blocks 23 are symmetrically arranged on the outside of each of the two bidirectional threaded rods 9. A hinge block 15 is hinged to the upper surface of each pair of threaded blocks 23 via a connecting rod 24. A fixing block 10 is fixedly connected to the middle of the bottom of each of the two adjusting plates 8. The fixing block 10 has a movable groove for the bidirectional threaded rod 9 to move inside. A telescopic rod 11 is fixedly connected to the middle of the upper surface of the fixing block 10. The telescopic end of the telescopic rod 11 is connected to the lower part of the hinge block 15. The upper surfaces of the two hinge blocks 15 are fixedly connected to the bottom of the support plate 6. When unloading is required, the reciprocating motor 22 starts running. At this time, the reciprocating motor 22 will drive one of the bidirectional threaded rods 9 to rotate synchronously. Since the two bidirectional threaded rods 9 are connected by a synchronous belt 13 and a pulley 14, the two bidirectional threaded rods 9 will rotate synchronously. The threaded blocks 23 will move synchronously towards the center from the outside of the bidirectional threaded rods 9. Since each pair of threaded blocks 23 is hinged to the hinge block 15 by a connecting rod 24, the threaded blocks 23 will drive the hinge block 15 to move synchronously upward through the connecting rod 24. The hinge block 15 will then drive the support plate 6 and the unloading plate body 4 to move synchronously. At this time, the unloading plate body 4 can be moved to the same plane as the refrigerated compartment, which makes it easier for staff to unload the goods inside the refrigerated compartment, effectively improving the unloading efficiency and reducing the workload of the staff.

[0033] In one embodiment, such as Figure 1 and Figure 2 As shown, a first bellows cover 3 is fixedly connected to the upper surface of the base plate 1. The upper surface of the first bellows cover 3 is fixedly connected to the bottom of the support plate 6. By setting the first bellows cover 3, the internal components of the lifting assembly can be effectively protected against dust and water, thereby effectively extending the service life of the internal components of the lifting assembly, without affecting the normal use of the lifting assembly.

[0034] In one embodiment, such as Figure 2 and Figure 4As shown, the fixing assembly includes outer rods 25 symmetrically arranged on the front and rear surfaces of the support plate 6. Each outer rod 25 has a limiting plate 26 fixedly connected to its other end. A contact plate 27 is slidably connected to the outside of every two outer rods 25. A return spring 28 is sleeved on the outside of each outer rod 25, and the return springs 28 abut against the limiting plate 26 and the contact plate 27. A handle is fixedly connected to one side of the contact plate 27. Insert rods 7 are symmetrically arranged on opposite sides of the two contact plates 27. Guide grooves for the insertion rods 7 to move are provided on the front and rear surfaces of the support plate 6 and the mounting plate 16. When the unloading plate body 4 needs to be fixedly installed, simply pull the handle first. The handle will then move the contact plate 27 to the outer rods 25. The external synchronous movement of the 5 is achieved. During the movement of the contact plate 27, the return spring 28 is compressed. The contact plate 27 also drives the insertion rod 7 to move synchronously. At this time, the mounting plate 16 is inserted into the guide groove on the upper surface of the support plate 6. Then, the handle is released. At this time, the return spring 28 is reset, driving the contact plate 27 to move synchronously. The contact plate 27 then drives the insertion rod 7 to move synchronously. When the insertion rod 7 is inserted into the guide groove on the front and rear surfaces of the mounting plate 16, the mounting plate 16 and the support plate 6 can be fixed. At this time, the unloading plate body 4 can be fixedly installed. At the same time, it is convenient for the staff to disassemble and replace the unloading plate body 4, further improving the overall practicality of the device.

[0035] In one embodiment, such as Figures 1-3 As shown, a second bellows cover 21 is fitted on the outside of multiple outer rods 25. The two ends of the multiple second bellows covers 21 are fixedly connected to the opposite side of the limiting plate 26 and the contact plate 27, respectively. By setting the second bellows cover 21, the return spring 28 can be effectively protected from dust and water, thereby effectively extending the service life of the return spring 28, without affecting the normal use effect of the return spring 28.

[0036] In one embodiment, such as Figures 1-3 As shown, side plates 17 are fixedly connected to the middle of both sides of the outer wall of the base plate 1. Threaded holes for the movement of lead screws 19 are opened through the middle of the upper surface of each side plate 17. Turntables 18 are fixedly connected to the top of each lead screw 19, and contact plates 20 are fixedly connected to the bottom of each lead screw 19. When the base plate 1 moves to a suitable position, the operator rotates the turntables 18. At this time, the turntables 18 will drive the lead screws 19 to rotate synchronously, and the lead screws 19 will then drive the contact plates 20 to move synchronously. When the bottom of the contact plates 20 contacts the ground, the friction between the device and the ground can be increased through the contact plates 20, thereby effectively improving the stability of the device during use.

[0037] In one embodiment, such as Figures 1-3As shown, both contact plates 20 are made of rubber. Rubber has good anti-slip and wear resistance, which can further improve the friction between the contact plate 20 and the ground, thereby further improving the overall stability of the device and preventing displacement of the device during use.

[0038] In one embodiment, such as Figures 1-3 As shown, outer plates 29 are symmetrically arranged on the right side surface of the base plate 1. Connecting sleeves 30 are fixedly connected to the upper surfaces of the two outer plates 29. Movable rods 31 are provided inside the two connecting sleeves 30. Push handles 32 are fixedly connected to the top of the two movable rods 31. The two movable rods 31 are fixedly connected to the connecting sleeves 30 by bolts. When it is necessary to adjust the height of the push handle 32, simply unscrew the bolts and pull the movable rods 31 inside the connecting sleeves 30. When the movable rods 31 drive the push handle 32 to a suitable height position, the movable rods 31 are fixed to the connecting sleeves 30 by bolts. At this time, the height of the push handle 32 can be adjusted, which makes it convenient for workers of different heights to use the whole device.

[0039] The above embodiment discloses a docking unloading platform for refrigerated trucks. When unloading goods from inside the refrigerated truck compartment, the entire device is first moved to a suitable position. After the device has moved, the reciprocating motor 22 starts operating, driving the support plate 6 and the unloading platform body 4 to move upwards simultaneously. When the unloading platform body 4 is on the same plane as the refrigerated truck compartment, the workers place the goods from inside the refrigerated truck compartment onto the unloading platform body 4. After the goods are placed, the reciprocating motor 22 reverses, driving the support plate 6 and the unloading platform body 4 to move downwards simultaneously. The unloading platform body 4 then moves the goods downwards simultaneously. This device allows for unloading of goods without the need for multiple workers, effectively improving unloading efficiency, reducing the workload of staff, and enhancing the overall practicality of the device. When the specifications of the unloading plate body 4 need to be changed, simply pull the handle. The handle will then move the insertion rod 7 synchronously. When the insertion rod 7 disengages from the guide grooves on the front and rear surfaces of the mounting plate 16, the mounting plate 16 and the support plate 6 can be separated. This allows staff to select different specifications of the unloading plate body 4 according to the different sizes of the goods, further enhancing the overall practicality of the device. Moreover, the device has a simple and clear structure, making it easy for staff to use.

[0040] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A docking and unloading platform for refrigerated trucks, comprising a base plate (1), characterized in that, The bottom of the base plate (1) is fixedly connected to four corners of the bottom with casters (2). A support plate (6) is provided on the top of the base plate (1). A loading plate body (4) is provided on the top of the support plate (6). An installation plate (16) is fixedly connected to the middle of the lower surface of the loading plate body (4). A guide groove for the installation plate (16) to move is provided in the middle of the upper surface of the support plate (6). A loading groove is provided on the upper surface of the loading plate body (4). Loading rollers (5) are provided at equal intervals inside the loading groove. The lifting assembly is symmetrically arranged on the upper surface of the base plate (1) and is used to adjust the height of the unloading plate, so as to facilitate the loading and unloading of goods by the staff. The fixing components are symmetrically arranged on the front and rear surfaces of the support plate (6) and are used to fix the mounting plate (16) to the support plate (6).

2. The unloading platform for refrigerated trucks according to claim 1, characterized in that, The lifting assembly includes adjusting plates (8) symmetrically arranged on the upper surface of the base plate (1). Two bidirectional threaded rods (9) are rotatably connected to the inner left side walls of both adjusting plates (8). A connecting frame (12) is fixedly connected to the outer side of both adjusting plates (8). The other ends of both bidirectional threaded rods (9) extend to the outside of the adjusting plates (8) and are rotatably connected to the left side surface of the connecting frame (12). A reciprocating motor (22) is fixedly connected to the left side surface of one of the adjusting plates (8). The output shaft of the reciprocating motor (22) is fixedly connected to one end of one of the bidirectional threaded rods (9) via a coupling. The two bidirectional threaded rods (9) are engaged by a synchronous belt (13). The pulley (14) is connected for transmission. The two bidirectional threaded rods (9) are symmetrically provided with threaded blocks (23) on their exteriors. The upper surfaces of each pair of threaded blocks (23) are hinged with hinge blocks (15) via connecting rods (24). The inner bottom center of each of the two adjusting plates (8) is fixedly connected with a fixing block (10). The fixing block (10) has an active groove for the bidirectional threaded rods (9) to move inside. The upper center of the fixing block (10) is fixedly connected with a telescopic rod (11). The telescopic end of the telescopic rod (11) is fixedly connected to the lower center of the hinge block (15). The upper surfaces of the two hinge blocks (15) are fixedly connected to the bottom of the support plate (6).

3. The unloading platform for refrigerated trucks according to claim 1, characterized in that, The upper surface of the base plate (1) is fixedly connected to a first bellows cover (3), and the upper surface of the first bellows cover (3) is fixedly connected to the bottom of the support plate (6).

4. A docking and unloading platform for refrigerated trucks according to claim 1, characterized in that, The fixing assembly includes outer rods (25) symmetrically arranged on the front and rear surfaces of the support plate (6). The other end of each of the outer rods (25) is fixedly connected to a limiting plate (26). A contact plate (27) is slidably connected to the outside of each pair of outer rods (25). A return spring (28) is sleeved on the outside of each of the outer rods (25). The return springs (28) abut against the limiting plate (26) and the contact plate (27). A handle is fixedly connected to one side of the contact plate (27). Insert rods (7) are symmetrically arranged on the opposite sides of the two contact plates (27). The front and rear surfaces of the support plate (6) and the mounting plate (16) are provided with guide grooves for the insertion rods (7) to move.

5. A docking and unloading platform for refrigerated trucks according to claim 4, characterized in that, Each of the multiple outer rods (25) is fitted with a second bellows cover (21), and the two ends of the multiple second bellows covers (21) are fixedly connected to the opposite side of the limiting plate (26) and the contact plate (27), respectively.

6. A docking and unloading platform for refrigerated trucks according to claim 1, characterized in that, Side plates (17) are fixedly connected to the middle of both sides of the outer wall of the base plate (1). The upper surface of the two side plates (17) is provided with threaded holes for the movement of the lead screw (19). The top of the two lead screws (19) is fixedly connected to a turntable (18), and the bottom of the two lead screws (19) is fixedly connected to a contact plate (20).

7. A docking and unloading platform for refrigerated trucks according to claim 6, characterized in that, Both of the contact plates (20) are made of rubber.

8. A docking and unloading platform for refrigerated trucks according to claim 1, characterized in that, The right side surface of the base plate (1) is symmetrically provided with outer plates (29). The upper surfaces of the two outer plates (29) are fixedly connected with connecting sleeves (30). The interior of the two connecting sleeves (30) is provided with movable rods (31). The top ends of the two movable rods (31) are fixedly connected with push handles (32). The two movable rods (31) and the connecting sleeves (30) are fixedly connected by bolts.