A handling device for cold chain transport

Abstract

This utility model relates to the field of cold chain transportation technology and discloses a handling device for cold chain transportation, including two bases, a second limiting plate, two support seats, and two third limiting plates. A first limiting plate is slidably disposed on one side of the second limiting plate. Rotating blocks are rotatably disposed at both ends and opposite sides of the two bases. Sliding rods are slidably disposed inside each of the rotating blocks. Compression springs are fixedly disposed on the side of each rotating block away from the base. A first inclined block is fixedly disposed on one side of the lower end of each of the two support seats. A damper is fixedly disposed on opposite sides inside each of the two bases. In this utility model, by manually pulling the limiting plates, vertical pressure is converted into horizontal clamping force to achieve top contact. The dampers can quickly absorb vibration energy under bumpy or impact conditions, reducing the risk of damage to cold chain goods and ensuring transportation safety.

Description

Technical Field

[0001] This utility model relates to the field of cold chain transportation technology, and in particular to a handling device for cold chain transportation. Background Technology

[0002] Cold chain transportation is a specialized transportation model that relies on professional temperature control technology to ensure that goods are always kept in a specific low-temperature environment throughout the entire circulation chain. Its core objective is to maximize the freshness and quality of perishable goods by precisely controlling the temperature throughout the entire process, blocking the risk of microbial growth and component deterioration, thereby ensuring the safety and usability of the goods. Handling equipment is often required during cold chain transportation.

[0003] Existing patent (publication number: CN221367084U) discloses "This utility model discloses a handling device for cold chain transportation, relating to the field of cold chain transportation. This handling device includes two load-bearing seats, with multiple pulleys fixedly installed on the bottom end faces of the two load-bearing seats, and multiple adjusting components arranged between the two load-bearing seats. This handling device pulls the load-bearing seats to slide along a sliding rod and a connecting seat, thereby moving a movable seat. At this time, the movable seat slides along the outer peripheral wall of the threaded rod, causing the distance between the two load-bearing seats to change. When the distance between the two load-bearing seats reaches the size for placing transported goods, the movable seat is fixed on the threaded rod, thereby fixing the load-bearing seats. It is suitable for handling goods of different sizes."

[0004] In the process of realizing this application, the inventors discovered the following problems with the prior art: Although most of these handling devices are equipped with clamping structures, they rely on clamping in only one direction, which makes them prone to shifting during handling. Furthermore, they lack effective shock absorption and buffering structures, which can easily transmit vibrations directly to goods when passing through uneven roads or during loading and unloading, posing potential risks to fragile cold chain items such as vaccines, biological agents, and fresh fruits and vegetables.

[0005] Therefore, those skilled in the art have provided a handling device for cold chain transportation to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a handling device for cold chain transportation. By manually pulling the limiting plate, vertical pressure is converted into horizontal clamping force to achieve top contact. The damper can quickly absorb vibration energy under bumpy or impact conditions, reducing the risk of damage to cold chain goods and ensuring transportation safety.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A handling device for cold chain transportation includes two bases, a second limiting plate, two support seats and two third limiting plates. A first limiting plate is slidably arranged on one side of the second limiting plate. Rotating blocks are rotatably arranged at both ends of the two bases and on opposite sides. Sliding rods are slidably arranged inside the multiple rotating blocks. Compression springs are fixedly arranged on the side of the multiple rotating blocks away from the base.

[0009] Each of the two support bases has a first inclined block fixedly installed on one side of its lower end. Each of the two bases has a damper fixedly installed on the opposite side of its interior. Each of the two dampers has two rotating rods hinged to the opposite side of its opposite side. Each of the multiple rotating rods has a slider hinged to the opposite side of each pair of opposite sides. Each of the two bases has a second inclined block slidably installed at its lower end. Each of the two second inclined blocks has a groove on the opposite side of its opposite side.

[0010] Furthermore, the sides of the multiple sliding rods away from the base are respectively fixedly disposed on the sides of the first limiting plate, the second limiting plate, and the two third limiting plates close to the base, and the sides of the multiple compression springs are respectively fixedly disposed on the rear ends of the multiple sliding rods.

[0011] Furthermore, a connecting rod is fixedly provided on one side of one of the two bases, and a lead screw is rotatably provided on one side inside the other of the two bases. Springs are sleeved on the outside of both dampers. The opposite sides of the two springs are respectively fixedly provided on opposite sides inside the two bases, and the opposite sides of the two springs are respectively fixedly provided between multiple rotating rods.

[0012] Furthermore, the lead screw is externally threaded into the inside of the connecting rod, and the connecting rod is externally slidably disposed on one side of the other of the two bases.

[0013] Furthermore, the lower ends of the two first inclined blocks are inclined on opposite sides, and the upper ends of the two second inclined blocks are inclined on opposite sides, with the upper ends of the two second inclined blocks slidably disposed at the lower ends of the two first inclined blocks respectively.

[0014] Furthermore, two fixing rods are fixedly installed on opposite sides of the lower ends of the two support bases, and multiple fixing rods are slidably installed on the outside of the two bases near the lower end, and multiple sliders are slidably installed on the outside of the two slide grooves.

[0015] Furthermore, each of the two bases is fixedly provided with two casters at its lower end, one side of the two support seats is slidably disposed on the inner side of the other support seat, and one side of the two bases is fixedly provided with two guide rods, the outer side of the two guide rods is slidably disposed on the inner side of the other base.

[0016] This utility model has the following beneficial effects:

[0017] 1. The present invention proposes a handling device for cold chain transportation. When meeting the carrying requirements of cold chain goods of different sizes, the operator can adjust the overall width of the device by rotating the screw, so that the two bases move closer or further apart in the horizontal direction to adapt to the size of pallets or goods of different specifications. After the cold chain goods are placed on the support base, the operator can manually pull the first limiting plate, the second limiting plate and the third limiting plates on both sides, so that the sliding rod connected to each limiting plate slides inside the rotating block and compresses the compression spring set in the rotating block. As the compression spring elastically contracts, the lower end of the limiting plate can fit tightly against the top of goods of different heights, forming a multi-directional wrapping limiting, thereby effectively preventing the goods from lateral displacement or tipping over during transportation.

[0018] 2. The present invention proposes a handling device for cold chain transportation. During the movement of the device, if it encounters road bumps or impact vibrations during loading and unloading, the horizontal sliding of the second inclined block will drive the sliding groove opened on its side to move synchronously. The slider moves accordingly and pushes the rotating rod to move, which in turn produces a stretching or compressing effect on the damper. At the same time, the spring sleeved on the outside of the damper stretches and deforms accordingly. The damper absorbs the impact energy, thereby reducing the impact of vibration on cold chain goods and ensuring stable load bearing. Attached Figure Description

[0019] Figure 1 This is an isometric schematic diagram of the entire utility model;

[0020] Figure 2 This is a top-section axonometric view of the present invention near the first inclined block;

[0021] Figure 3 This is a bottom-view axonometric schematic diagram of the present invention, showing the damper.

[0022] Figure 4 This is an isometric view of the present invention near the slide groove;

[0023] Figure 5 This is a bottom-view axonometric schematic diagram of the present invention, close to the connecting rod;

[0024] Figure 6 This is an isometric view of the present invention near the compression spring.

[0025] Legend:

[0026] 1. Base; 2. First limiting plate; 3. Second limiting plate; 4. Support base; 5. Rotating block; 6. Third limiting plate; 7. Damper; 8. Spring; 9. Rotating rod; 10. Slide groove; 11. First inclined block; 12. Second inclined block; 13. Sliding block; 14. Fixed rod; 15. Compression spring; 16. Sliding rod; 17. Lead screw; 18. Connecting rod; 19. Universal wheel; 20. Guide rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1-5 One embodiment provided by this utility model:

[0029] A handling device for cold chain transportation includes two bases 1, a second limiting plate 3, two support bases 4 and two third limiting plates 6. A first limiting plate 2 is slidably arranged on one side of the second limiting plate 3. Rotating blocks 5 are rotatably arranged at both ends of the two bases 1 and on opposite sides. Sliding rods 16 are slidably arranged inside the multiple rotating blocks 5. Compression springs 15 are fixedly arranged on the side of the multiple rotating blocks 5 away from the base 1.

[0030] Multiple sliding rods 16 are fixedly installed on the side away from the base 1, respectively, on the side of the first limiting plate 2, the second limiting plate 3, and the two third limiting plates 6 close to the base 1. Multiple compression springs 15 are fixedly installed on the rear end of multiple sliding rods 16. A connecting rod 18 is fixedly installed on one side of one of the two bases 1. A lead screw 17 is rotatably installed on the inner side of the other two bases 1. Springs 8 are sleeved on the outside of both dampers 7. The opposite sides of the two springs 8 are fixedly installed on the opposite sides of the two bases 1. The opposite sides of the two springs 8 are fixedly installed between multiple rotating rods 9. The lead screw 17 is externally threaded to the inside of the connecting rod 18. The connecting rod 18 is externally slidably installed on the inner side of the other two bases 1.

[0031] Two support bases 4 are each fixedly provided with a first inclined block 11 on one side of their lower end. Two bases 1 are each fixedly provided with a damper 7 on opposite sides of their interior. Two rotating rods 9 are hinged on opposite sides of the two dampers 7. Multiple rotating rods 9 are each hinged on opposite sides of their respective sides. Two second inclined blocks 12 are slidably provided on the lower end of their interior. Two second inclined blocks 12 are each provided with a groove 10 on opposite sides of their respective sides.

[0032] The lower ends of the two first inclined blocks 11 are inclined on opposite sides, and the upper ends of the two second inclined blocks 12 are inclined on opposite sides. The upper ends of the two second inclined blocks 12 are slidably disposed on the lower ends of the two first inclined blocks 11. Two fixed rods 14 are fixedly disposed on opposite sides of the lower ends of the two support bases 4. Multiple fixed rods 14 are slidably disposed on the lower ends of the two bases 1. Multiple sliders 13 are slidably disposed on the lower ends of the two slide grooves 10. Two universal wheels 19 are fixedly disposed on the lower ends of the two bases 1. One side of the two support bases 4 is slidably disposed on the inner side of the other support base 4. Two guide rods 20 are fixedly disposed on one side of the two bases 1. The outer side of the two guide rods 20 is slidably disposed on the inner side of the other base 1.

[0033] Specifically, when meeting the carrying requirements of cold chain goods of different sizes, the operator rotates the lead screw 17 inside one of the two bases 1. Since the lead screw 17 is threadedly connected to the connecting rod 18, and the sliding limit of the connecting rod 18 is located inside the other base 1, the rotation of the lead screw 17 will drive the connecting rod 18 to extend and retract in the horizontal direction, thereby making the two bases 1 relatively closer or farther apart. At the same time, the guide rod 20 between the two bases 1 can prevent the bases 1 from shifting during the adjustment process, ensuring that the width adjustment is accurate and stable, so that it can adapt to different pallet sizes. During the movement of the two bases 1, one side inside the first limiting plate 2 will slide synchronously inside the second limiting plate 3.

[0034] After the goods are placed, by pulling the first limiting plate 2, the second limiting plate 3 and the third limiting plate 6, the rotating blocks 5 at the front and rear ends and sides of the base 1 rotate, and then the sliding rod 16 slides inside the rotating block 5 and squeezes the compression spring 15, causing the compression spring 15 to contract inside the rotating plate. Subsequently, the lower ends of the first limiting plate 2, the second limiting plate 3 and the third limiting plate 6 are tightly attached to the upper ends of goods of different heights, forming a multi-directional wrapping limiting, thereby preventing the goods from shifting during handling.

[0035] When goods are placed on support base 4, the weight of the goods causes support base 4 to press downward, which drives the first inclined block 11 at the lower end to move down synchronously. Since the lower end of the first inclined block 11 is an inclined surface and slides in cooperation with the inclined surface of the second inclined block 12, when the first inclined block 11 moves down, it will push the two second inclined blocks 12 to slide horizontally in opposite directions along the inside of the base 1. The fixing rod 14 at the lower end of support base 4 slides along the inside of the base 1, which restricts the downward movement direction of support base 4, prevents it from deviating or tilting, and ensures that the goods are always in a horizontal bearing state, preventing the goods from tipping over due to unstable bearing. It is especially suitable for fragile cold chain medicines or easily squeezed fresh food.

[0036] During the handling process, such as when the device is manually pushed over a bumpy road or there is a slight collision during loading and unloading, when the second inclined block 12 slides, the sliding groove 10 on its side will drive the internal slider 13 to move, which in turn pulls the rotating rod 9 that is hinged to it to rotate. The other end of the rotating rod 9 is hinged to the damper 7. When the rotating rod 9 rotates, it will generate a tensile or compressive force on the damper 7. At the same time, the spring 8 outside the damper 7 will expand and contract synchronously with the deformation of the damper 7. The damping effect of the damper 7 will consume the vibration energy and achieve buffering.

[0037] After the cargo limit and buffer adjustment are completed, the device can be moved flexibly by the casters 19 at the bottom of the device to meet the handling needs of different scenarios. The casters 19 are equipped with a brake locking mechanism. When the device moves to the target position, stepping on the brake will fix the wheel set and prevent the device from sliding on its own when loading and unloading goods or when stationary, thus ensuring operational safety.

[0038] It should be noted that the damper 7 used in this device is a hydraulic damper 7, which is filled with hydraulic oil and belongs to the existing publicly available technical solution. Therefore, its specific structure and working principle will not be described in detail here. The compression spring 15 is made of stainless steel, which has good fatigue resistance and can prevent rust from affecting the elasticity. All standard parts used in this application can be purchased from the market. Special-shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt mature bolts, rivets, welding and other conventional methods in the prior art. Mechanical parts, components and equipment adopt conventional models in the prior art. Therefore, they will not be described in detail here. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] Working principle: During use, the operator rotates the lead screw 17 to drive the connecting rod 18 to extend and retract smoothly in the horizontal direction, thereby causing the two bases 1 to move relative to or in opposite directions, realizing flexible adjustment of the horizontal width of the device. At the same time, the guide rod 20 can play a limiting role. During this process, the first limiting plate 2 will slide synchronously inside the second limiting plate 3. After the goods are placed, the operator can pull the first limiting plate 2, the second limiting plate 3 and the third limiting plate 6 to make the rotating block 5 rotate, so that the sliding rod 16 slides inside it and squeezes the compression spring 15. The sliding rod 16 makes the first limiting plate 2, the second limiting plate 3 and the third limiting plate 6 fit tightly against the upper surface of goods of different heights, forming a limit and preventing the goods from moving during the handling process.

[0040] In scenarios where the device is manually pushed over bumpy roads or experiences minor collisions during loading and unloading, the second inclined block 12 slides downwards, and its side groove 10 drives the internal slider 13 to move synchronously. This causes the rotating rod 9, which is hinged to it, to rotate around the end of the damper 7. During the rotation of the rotating rod 9, it generates a tensile or compressive force on the damper 7, causing the damping medium inside the damper 7 to flow to dissipate energy. At the same time, the spring 8 outside the damper 7 will expand and contract synchronously with the deformation of the damper 7, thereby effectively weakening vibrations and impacts of different frequencies and reducing the impact on the goods.

[0041] Finally, it should be noted that the above description is only 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 handling device for cold chain transportation, comprising two bases (1), a second limiting plate (3), two support seats (4), and two third limiting plates (6), characterized in that: The second limiting plate (3) is slidably provided with a first limiting plate (2) on one side. The two bases (1) are rotatably provided with rotating blocks (5) at both ends and opposite sides. Sliding rods (16) are slidably provided inside the multiple rotating blocks (5). Compression springs (15) are fixedly provided on the side of the multiple rotating blocks (5) away from the base (1). Each of the two support bases (4) has a first inclined block (11) fixedly installed on one side of its lower end. Each of the two bases (1) has a damper (7) fixedly installed on the opposite side of its interior. Each of the two dampers (7) has two rotating rods (9) hinged on the opposite side of its opposite side. Each of the multiple rotating rods (9) has a slider (13) hinged on the opposite side of each pair of opposite sides. Each of the two bases (1) has a second inclined block (12) slidably installed at its lower end. Each of the two second inclined blocks (12) has a groove (10) opened on the opposite side of its opposite side.

2. The handling device for cold chain transportation according to claim 1, characterized in that: The sliding rods (16) are respectively fixed on the side away from the base (1) of the first limiting plate (2), the second limiting plate (3) and the two third limiting plates (6) on the side close to the base (1), and the compression springs (15) are respectively fixed on the rear end of the sliding rods (16).

3. The handling device for cold chain transportation according to claim 1, characterized in that: One of the two bases (1) is fixedly provided with a connecting rod (18) on one side, and the other of the two bases (1) is rotatably provided with a lead screw (17) on one side inside. Both of the two dampers (7) are fitted with springs (8) on the outside. The opposite sides of the two springs (8) are respectively fixedly provided on the opposite sides inside the two bases (1), and the opposite sides of the two springs (8) are respectively fixedly provided between the opposite sides of a plurality of rotating rods (9).

4. A handling device for cold chain transportation according to claim 3, characterized in that: The lead screw (17) is externally threaded into the inside of the connecting rod (18), and the connecting rod (18) is externally slidably disposed on one side of the other of the two bases (1).

5. A handling device for cold chain transportation according to claim 1, characterized in that: The lower ends of the two first inclined blocks (11) are inclined on opposite sides, and the upper ends of the two second inclined blocks (12) are inclined on opposite sides. The upper ends of the two second inclined blocks (12) are respectively slidably disposed at the lower ends of the two first inclined blocks (11).

6. A handling device for cold chain transportation according to claim 1, characterized in that: Two fixed rods (14) are fixedly installed on opposite sides of the lower end of the two support bases (4). Multiple fixed rods (14) are slidably installed on the outside of the two bases (1) at the lower end. Multiple sliders (13) are slidably installed on the outside of the two slide grooves (10).

7. A handling device for cold chain transportation according to claim 1, characterized in that: Two universal wheels (19) are fixedly installed at the lower end of each of the two bases (1). One side of one of the two support seats (4) is slidably installed on the inner side of the other of the two support seats (4). Two guide rods (20) are fixedly installed on one side of one of the two bases (1). The outer side of the two guide rods (20) is slidably installed on the inner side of the other of the two bases (1).

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