A roll material loading and unloading trolley
By designing the roller assembly and clamping mechanism of the roll material loading and unloading trolley, the problems of low efficiency and safety hazards of roll material loading and unloading trolleys were solved, and efficient and safe roll material loading and unloading operations were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN MINGTAI TECH DEV CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-31
AI Technical Summary
Existing technologies for loading and unloading rolled materials are inefficient, labor-intensive, and pose a safety hazard due to the material falling off the vehicle.
A roll material loading and unloading trolley was designed, which includes a support structure and a rotating loading and unloading structure, including a roller assembly and a clamping mechanism. The roller assembly supports the roll material, and the clamping mechanism fixes the roll material, realizing convenient loading and unloading operations.
It improved the efficiency of loading and unloading roll materials, reduced labor intensity, prevented roll materials from falling, and ensured safety.
Smart Images
Figure CN224576652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transfer equipment technology, specifically to a roll material loading and unloading trolley. Background Technology
[0002] Rolled materials refer to a product form in which flat materials are wound into long rolls. These typically include materials such as metal, plastic, rubber, and felt. The width, length, and thickness of the rolls can be flexibly adjusted according to actual needs to adapt to different applications. The diameter of the rolls can be customized according to specific production requirements.
[0003] After being packaged, the roll material is placed in a designated location. When the roll material needs to be transported, it needs to be transferred to the truck bed. Current technology usually uses manual methods to load and unload the roll material. Workers lift the roll material from the designated location to the truck for loading, or lift the roll material from the truck to the designated location. This method is inconvenient, increases the labor intensity of workers, and has low efficiency. In addition, there is a risk of the roll material falling during handling, which can cause damage to the roll material and injury to workers, posing a safety hazard. Summary of the Invention
[0004] This utility model addresses the problems of inconvenience in loading and unloading roll materials and the easy fall of roll materials during handling in existing technologies. It provides a roll material loading and unloading trolley, which facilitates the transfer and loading / unloading of roll materials, reduces the labor intensity of workers, and improves the efficiency of roll material loading and unloading. At the same time, it can also prevent roll materials from falling during transfer, thereby avoiding damage to the roll materials and injury to workers.
[0005] To achieve the above objectives, the technical solution of this utility model is: a roll material loading and unloading trolley, comprising a support structure and a loading and unloading structure rotatably mounted on the support structure. The loading and unloading structure includes a rotating frame, a roller assembly, and a clamping mechanism. One end of the rotating frame is fixedly connected to a pallet. The rotating frame includes two crosses and a support frame. The crosses are rotatably connected to the support structure and connected to the support frame. The pallet supports the transported roll material, and the rotating frame can drive the roller assembly and the clamping mechanism to rotate, so as to load the roll material onto the pallet and roller assembly and to push and pull the trolley.
[0006] Multiple idler roller assemblies are arranged at equal intervals between the two support frames. Each idler roller assembly includes an arc-shaped support plate, a support shaft, and an idler roller. The two ends of the arc-shaped support plate are respectively connected to the upper crossbeams of the two support frames. The support shaft is fixedly installed inside the arc-shaped support plate. The idler roller is rotatably sleeved on the support shaft. The idler roller provides support for the roll material. Since the idler roller is rotatably sleeved on the support shaft, it is convenient to load and unload the roll material through the action of the idler roller.
[0007] Multiple clamping mechanisms are arranged on the two crosses. Each clamping mechanism includes a transmission component and a clamping component. The transmission component is driven by two transmission blocks with opposite directions of movement. The clamping components are fixedly installed on both transmission blocks. The clamping mechanisms clamp the roll material. The transmission component can drive the clamping components to move closer or further apart from each other through the transmission blocks, thereby achieving the effect of clamping and fixing or releasing the roll material. By clamping the roll material located on the idler roller assembly, the phenomenon of the roll material sliding on the idler roller assembly can be effectively avoided, thereby preventing the roll material from falling off during the transfer of the roll material.
[0008] Furthermore, the support structure includes a support frame and support brackets symmetrically arranged on the top of the support frame, with a fixed shaft fixed between the two support brackets; universal wheels are provided at the bottom corners of the support frame, and the support frame and support brackets provide support for the loading and unloading structure. The universal wheels facilitate workers to push and pull the trolley to realize the transfer and loading / unloading of the roll material.
[0009] Furthermore, the lower part of the vertical beam of the cross is rotatably sleeved on the fixed shaft, and the two ends of the horizontal beam of the cross are respectively connected to the pallet and the support frame. The two ends of the vertical beam of the cross are respectively connected to the support frame. A longitudinal beam is also fixedly arranged between the two horizontal beams of the cross. Through the rotational cooperation between the fixed shaft and the longitudinal beam of the cross, the rotating frame drives the roller assembly and the clamping mechanism to rotate, thereby facilitating the loading of the roll material onto the trolley and the loading and unloading of the roll material.
[0010] Furthermore, the transmission assembly includes two supports and a positive and negative threaded rod rotatably disposed between the two supports. The supports are fixedly disposed on the top of the crossbeam of the cross, and the positive and negative threaded rod is tractively connected to the two transmission blocks. One end of the positive and negative threaded rod passes through the support and is fixedly connected to a handwheel. The handwheel allows the operator to rotate the positive and negative threaded rod. The rotation of the positive and negative threaded rod can drive the two transmission blocks to move closer or further apart, thereby clamping and fixing or releasing the roll material.
[0011] Furthermore, the clamping assembly includes a fixed seat, a clamping arc plate, a guide slide shaft, and a compression spring. The lower part of the fixed seat has an inverted "U" shape and is clamped onto the transmission block. The fixed seat is bolted to the transmission block. At least one of the guide slide shafts is provided on the outer side of the clamping arc plate. After the clamping arc plate compresses the compression spring, the clamping arc plate clamps and fixes the roll material through the force of the compression spring to prevent the roll material on the idler roller from sliding, thereby preventing the roll material from falling off during the transfer of the roll material.
[0012] Furthermore, one end of the guide slide shaft passes through the fixed seat and is fixedly connected to a limit baffle. The guide slide shaft is slidably connected to the fixed seat. The compression spring is sleeved on the guide slide shaft and located between the clamping arc plate and the fixed seat. The guide slide shaft guides the movement of the clamping arc plate. The limit baffle is used to restrict the position of the guide slide shaft and prevent the guide slide shaft from detaching from the fixed seat.
[0013] The beneficial effects of this utility model through the above technical solution are as follows: This utility model has a reasonable structure and good performance. It facilitates the transfer of roll materials from a designated location to a transport vehicle, and also facilitates the loading and unloading of roll materials. It replaces the manual handling and loading / unloading of roll materials, reduces the labor intensity of workers and improves the efficiency of roll material loading and unloading. It can also prevent roll materials from falling during the transfer, thereby avoiding damage to the roll materials and injury to workers, and has high safety.
[0014] The support structure of this utility model not only supports the loading and unloading structure, but also facilitates the workers to push and pull the loading and unloading trolley to realize the transfer and loading and unloading of the roll material; wherein the loading and unloading structure rotates relative to the support structure to facilitate the loading of the roll material onto the pallet and roller assembly and to facilitate the workers to push and pull the loading and unloading trolley, and the pallet supports the roll material.
[0015] This utility model's idler roller assembly provides support for the roll material. Since the idler roller and the bearing shaft rotate together, when loading and unloading the roll material, the loading and unloading structure can be rotated to a horizontal state, pushing the roll material to move on the idler roller to the transport vehicle compartment or pushing the roll material from the transport vehicle compartment to the idler roller, thereby facilitating the loading and unloading of the roll material.
[0016] The clamping mechanism of this utility model plays a clamping role for the roll material. The transmission component can drive the clamping components to move closer or further apart through the transmission block to achieve the effect of clamping and fixing or releasing the roll material. By using two clamping components to clamp the roll material located on the idler roller assembly, it can effectively prevent the roll material from rolling on the idler roller during the transfer of the roll material, thereby preventing the roll material from falling off during the transfer of the roll material. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of a roll material loading and unloading trolley according to this utility model; Figure 2 This is a schematic diagram of the structure of this utility model in the inclined tension state; Figure 3 This is a schematic diagram of the structure of this utility model in its rolled-up state; Figure 4 This is a schematic diagram of the structure of this utility model in its horizontal pushing state; Figure 5This is a schematic diagram of the support structure of this utility model; Figure 6 This is a schematic diagram of the loading and unloading structure of this utility model; Figure 7 This is a schematic diagram of the clamping mechanism of this utility model. Figure 1 ; Figure 8 This is a schematic diagram of the clamping mechanism of this utility model. Figure 2 .
[0018] The attached diagram is labeled as follows: 1 is the support frame, 2 is the caster wheel, 3 is the support frame, 4 is the fixed shaft, 5 is the cross, 6 is the longitudinal beam, 7 is the pallet, 8 is the load-bearing frame, 9 is the arc-shaped support plate, 10 is the load-bearing shaft, 11 is the roller, 12 is the support, 13 is the positive and negative threaded rod, 14 is the handwheel, 15 is the transmission block, 16 is the fixed seat, 17 is the clamping arc plate, 18 is the guide slide shaft, 19 is the limit baffle, and 20 is the compression spring. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 8 As shown, a roll material loading and unloading trolley includes a support structure and a loading and unloading structure rotatably mounted on the support structure. The loading and unloading structure includes a rotating frame, a roller assembly, and a clamping mechanism. One end of the rotating frame is fixedly connected to a pallet 7, and the rotating frame is vertically fixed on the pallet 7. The front end of the pallet 7 has a trapezoidal structure, and the pallet 7 provides support for the transported roll material. The rotating frame includes two crosses 5 and a bearing frame 8. The crosses 5 are rotatably connected to the support structure and to the bearing frame 8. The roller assembly and the clamping mechanism are both fixed on the rotating frame. The crosses 5 are rotatably engaged with the support structure, and the rotating frame can rotate relative to the support structure. Figure 2 , 3 As shown in Figure 4, the loading and unloading structure can be in a horizontal, inclined, or vertical state. When the loading and unloading structure is in a vertical state, it facilitates the placement of the roll material on the pallet 7 and the roller assembly. When the loading and unloading structure is in an inclined state, the operator pulls the loading and unloading trolley at an angle. When the loading and unloading structure is in a horizontal state, it facilitates loading and unloading operations of the roll material. In addition, in this embodiment, when the loading and unloading structure is in a horizontal state, its height is the same as the height of the van's cargo compartment, which is suitable for vans to transport roll materials.
[0020] Multiple idler roller assemblies are evenly spaced between the two support frames 8. Each idler roller assembly includes an arc-shaped support plate 9, a support shaft 10, and an idler roller 11. The two ends of the arc-shaped support plate 9 are fixedly connected to the upper crossbeams of the two support frames 8, respectively. The support shaft 10 is fixedly installed inside the arc-shaped support plate 9, and the idler roller 11 is rotatably sleeved on the support shaft 10. In this embodiment, there are four idler roller assemblies. The two ends of the support shaft 10 are fixedly connected to the arc-shaped support plate 9, respectively. When the roll material is placed on the idler roller assembly, the roll material lies vertically on the idler roller 11. The idler roller 11 provides support for the roll material, and because the idler roller 11 and the support shaft 10 rotate together, the roll material can be moved from the idler roller assembly to the transport vehicle compartment, or from the transport vehicle compartment to the idler roller assembly.
[0021] Multiple clamping mechanisms are arranged on the two crosses 5. Each clamping mechanism includes a transmission component and a clamping component. The transmission component is driven by two transmission blocks 15 with opposite directions of movement. The clamping components are fixedly mounted on both transmission blocks 15. In this embodiment, there are two clamping mechanisms, each located between the two idler roller assemblies. The transmission component can drive the two transmission blocks 15 to move closer or further apart. The two transmission blocks 15 drive the two clamping components to move closer or further apart. When the two clamping components move closer, they clamp the roll material fixed on the idler roller assembly to prevent the roll material from rolling on the idler roller assembly. When the two clamping components move further apart, they release the roll material on the idler roller assembly to release the restriction on the roll material, so as to move the roll material into the transport vehicle or remove it from the idler roller assembly.
[0022] The support structure includes a support frame 1 and support brackets 3 symmetrically arranged on the top of the support frame 1. A fixed shaft 4 is fixedly arranged between the two support brackets 3. Universal wheels 2 are provided at the bottom corners of each support frame 1. In this embodiment, there are two support brackets 3, which are inverted "V" shaped. The fixed shaft 4 is fixedly installed at the corners of the support brackets 3. There are four universal wheels 2 at the bottom of the support frame 1. The universal wheels 2 facilitate the movement of the loading and unloading trolley by workers, enabling the transfer and loading / unloading of the roll material.
[0023] The lower part of the vertical beam of the cross 5 is rotatably mounted on the fixed shaft 4. The two ends of the horizontal beam of the cross 5 are fixedly connected to the pallet 7 and the support frame 8, respectively. The two ends of the vertical beam of the cross 5 are fixedly connected to the support frame 8, respectively. A longitudinal beam 6 is also fixedly provided between the horizontal beams of the two crosses 5. The two ends of the longitudinal beam 6 are fixedly connected to the horizontal beams of the two crosses 5, and the longitudinal beam 6 serves to connect the two crosses 5 and improve the strength of the rotating frame structure. The support frame 8 provides an installation position for the roller assembly, and its U-shaped part also serves as a handhold for the workers, so that the workers can rotate the loading and unloading structure or push and pull the loading and unloading trolley.
[0024] The transmission assembly includes two supports 12 and a forward / reverse threaded rod 13 rotatably disposed between the two supports 12. The supports 12 are fixedly mounted on the top of the crossbeam of the cross 5. The forward / reverse threaded rod 13 is drively connected to the two transmission blocks 15. One end of the forward / reverse threaded rod 13 passes through the support 12 and is fixedly connected to a handwheel 14. The handwheel 14 allows the operator to rotate the forward / reverse threaded rod 13. The forward / reverse threaded rod 13 has two sections with opposite helical directions. Rotation of the forward / reverse threaded rod 13 causes the two transmission blocks 15 to move closer or further apart.
[0025] The clamping assembly includes a fixed base 16, a clamping arc plate 17, a guide slide shaft 18, and a compression spring 20. The lower part of the fixed base 16 has an inverted "U" shape and is clamped onto the transmission block 15. The fixed base 16 is bolted to the transmission block 15. At least one guide slide shaft 18 is provided on the outer side of the clamping arc plate 17. In an embodiment, there are two guide slide shafts 18. One end of the guide slide shaft 18 is fixedly connected to the clamping arc plate 17. A rubber pad can also be installed on the inner side of the clamping arc plate 17 to protect the clamped roll material.
[0026] One end of the guide slide shaft 18 passes through the fixed base 16 and is fixedly connected to a limiting baffle 19. The limiting baffle 19 has a circular structure and serves to limit the guide slide shaft 18, preventing it from detaching from the fixed base 16 under the action of the compression spring 20. The guide slide shaft 18 is slidably connected to the fixed base 16, which has a sliding hole that matches the guide slide shaft 18. The compression spring 20 is sleeved on the guide slide shaft 18 and located between the clamping arc plate 17 and the fixed base 16. When the two transmission blocks 15 drive the two clamping components to approach each other, the clamping arc plate 17 contacts the roll material and compresses the compression spring 20. The clamping arc plate 17 clamps and fixes the roll material through the force of the compression spring 20.
[0027] The working principle of this utility model is as follows: When the roll material needs to be loaded onto the vehicle, the operator can hold the support frame 8 and move the loading and unloading trolley to the roll material placement position. Then, the loading and unloading structure is rotated to make the loading and unloading structure vertical, so that the pallet 7 at the end of the cross 5 lands on the ground, the roll material is placed on the pallet 7 and the roll material is laid vertically on the roller 11 of the roller assembly. Then, the operator rotates the positive and negative threaded rod 13 through the handwheel 14. The rotation of the positive and negative threaded rod 13 drives the two transmission blocks 15 to move closer to each other. The two transmission blocks 15 drive the two clamping components to move closer to each other. When the clamping arc plate 17 contacts the roll material, the positive and negative threaded rod 13 is continuously rotated. The clamping arc plate 17 compresses the compression spring 20. The clamping arc plate 17 pushes the guide slide shaft 18 to slide on the fixed seat 16. The clamping arc plate 17 uses the force of the compression spring 20 to clamp and fix the roll material. Then, the rotation of the positive and negative threaded rod 13 is stopped. Afterwards, the staff can push or pull the loading and unloading trolley horizontally to the front of the transport vehicle; then rotate the positive and negative threaded rods 13 in the opposite direction. The rotation of the positive and negative threaded rods 13 drives the two transmission blocks 15 to move away from each other. The two transmission blocks 15 drive the two clamping components to move away from each other to release the restriction on the roll material. Then rotate the loading and unloading structure to make the loading and unloading structure horizontal so that the rear end of the loading and unloading structure is close to the height of the transport vehicle. Then push the roll material to slide on the idler rollers 11 into the transport vehicle to complete the loading operation of the roll material.
[0028] When the roll material needs to be unloaded, first rotate the loading and unloading structure to make it horizontal so that the rear end of the loading and unloading structure is close to the height of the transport vehicle. Then, push the roll material onto the idler roller 11 and slide it onto the pallet 7. The operator then rotates the positive and negative threaded rod 13 through the handwheel 14. The rotation of the positive and negative threaded rod 13 drives the two transmission blocks 15 to move closer to each other. The two transmission blocks 15 drive the two clamping components to move closer to each other to clamp and fix the roll material. The operator can push or pull the loading and unloading trolley horizontally to the unloading location of the roll material. Then, rotate the loading and unloading structure to make it vertical so that the pallet 7 at the end of the cross 5 lands on the ground. Rotate the positive and negative threaded rod 13 again. The rotation of the positive and negative threaded rod 13 drives the two transmission blocks 15 to move away from each other. The two transmission blocks 15 drive the two clamping components to move away from each other to release the restriction on the roll material. Then, the roll material can be unloaded to the unloading location, completing the unloading operation of the roll material.
[0029] The embodiments described above are merely preferred embodiments of the utility model and are not intended to limit the scope of the utility model. Therefore, all equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent application should be included within the scope of the utility model patent application.
Claims
1. A roll material loading and unloading trolley, characterized in that, It includes a support structure and a loading and unloading structure rotatably mounted on the support structure. The loading and unloading structure includes a rotating frame, a roller assembly and a clamping mechanism. One end of the rotating frame is fixedly connected to a tray (7). The rotating frame includes two crosses (5) and a bearing frame (8). The crosses (5) are rotatably connected to the support structure and connected to the bearing frame (8). Multiple roller assemblies are arranged at equal intervals between the two support frames (8). Each roller assembly includes an arc-shaped support plate (9), a support shaft (10), and a roller (11). The two ends of the arc-shaped support plate (9) are respectively connected to the upper crossbeams of the two support frames (8). The support shaft (10) is fixedly installed inside the arc-shaped support plate (9), and the roller (11) is rotatably sleeved on the support shaft (10). Multiple clamping mechanisms are provided on the two crosses (5). The clamping mechanism includes a transmission component and a clamping component. The transmission component is connected to two transmission blocks (15) with opposite directions of movement. The clamping component is fixedly provided on both transmission blocks (15).
2. The roll material loading and unloading trolley according to claim 1, characterized in that, The support structure includes a support frame (1) and support brackets (3) symmetrically arranged on the top of the support frame (1). A fixed shaft (4) is fixedly arranged between the two support brackets (3). Universal wheels (2) are provided at the bottom corners of the support frame (1).
3. The roll material loading and unloading trolley according to claim 2, characterized in that, The lower part of the vertical beam of the cross (5) is rotatably sleeved on the fixed shaft (4). The two ends of the horizontal beam of the cross (5) are respectively connected to the support plate (7) and the support frame (8). The two ends of the vertical beam of the cross (5) are respectively connected to the support frame (8). A longitudinal beam (6) is also fixedly installed between the horizontal beams of the two crosses (5).
4. The roll material loading and unloading trolley according to claim 1, characterized in that, The transmission assembly includes two supports (12) and a positive and negative threaded rod (13) rotatably disposed between the two supports (12). The supports (12) are fixedly disposed on the top of the crossbeam of the cross (5). The positive and negative threaded rod (13) is connected to the two transmission blocks (15). One end of the positive and negative threaded rod (13) passes through the support (12) and is fixedly connected to a handwheel (14).
5. A roll material loading and unloading trolley according to claim 1, characterized in that, The clamping assembly includes a fixed seat (16), a clamping arc plate (17), a guide slide shaft (18), and a compression spring (20). The lower part of the fixed seat (16) has an inverted "U" shape and is clamped on the transmission block (15). The fixed seat (16) is bolted to the transmission block (15). At least one of the guide slide shafts (18) is provided on the outer side of the clamping arc plate (17).
6. A roll material loading and unloading trolley according to claim 5, characterized in that, One end of the guide slide shaft (18) passes through the fixed seat (16) and is fixedly connected to the limit baffle (19). The guide slide shaft (18) is slidably connected to the fixed seat (16). The compression spring (20) is sleeved on the guide slide shaft (18) and located between the clamping arc plate (17) and the fixed seat (16).