Multifunctional sample rack facilitating transportation of petg and pc plates
By designing a multifunctional sample rack, and utilizing rotating wheels, adjustment components, and a worm gear system, the problems of insufficient rack adjustment, protection, and stability during the transportation of PETG and PC sheets were solved, achieving convenient operation and stable transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SNOWBALL NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-06-02
AI Technical Summary
Existing sample racks for transporting sheet materials are inadequate in terms of rack adjustment, sheet material protection, and stability. They are difficult to flexibly adapt to PETG and PC sheets of different heights, and are prone to scratches, wear, and slippage during transportation.
A multifunctional sample holder was designed, comprising rotatable first and second wheels, an adjustment assembly, a spring, and a worm gear tightening system, to achieve adjustable spacing between the holders, buffer protection, and stable fixation, reducing friction damage and preventing slippage.
It enables flexible adjustment and stable fixing of PETG and PC sheets, reduces friction damage and slippage during transportation, and ensures the integrity of the sheet surface.
Smart Images

Figure CN224312289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet material transportation technology, and in particular to a multifunctional sample rack that facilitates the transportation of PETG and PC sheets. Background Technology
[0002] PETG (polyethylene terephthalate), cyclohexanediol, and polycarbonate sheets are widely used in many fields due to their excellent properties. PETG sheets have good transparency, chemical resistance, toughness, and processing performance, and are commonly used in packaging, decoration, and electronics industries. PC sheets, on the other hand, are used in high-end fields such as architectural lighting, automobile manufacturing, and optical instruments due to their high strength, high transparency, and strong impact resistance. However, both types of sheets face many challenges during transportation. Their surfaces must maintain a high degree of smoothness and integrity, free from scratches, abrasions, and other defects, otherwise it will affect subsequent use and aesthetics. Moreover, they are sheet-like and relatively brittle (PC sheets are easily broken by improper external force), and come in various sizes, making it difficult for conventional transportation packaging methods to simultaneously meet the requirements of stability, classified storage, and easy access.
[0003] Existing sample racks for transporting sheet materials have significant shortcomings in several key aspects. Regarding rack adjustment, most are fixed structures or have cumbersome adjustment methods, making it difficult to flexibly adapt to PETG and PC sheets of different heights. This necessitates frequent rack changes when transporting sheets of different specifications, resulting in wasted time, effort, and increased costs. In terms of sheet material protection, there is a lack of effective friction-reducing and cushioning designs. PETG and PC sheets have sensitive surfaces and are easily scratched by friction with the rack during transport. Furthermore, the lack of cushioning against bumps and vibrations makes the sheets susceptible to damage. Regarding stability, either the fixing methods are rudimentary and prone to slippage, or there is a lack of safeguards such as anti-reverse rotation mechanisms. Once shaking occurs during transport, the fixing effect is greatly reduced, failing to ensure the sheets remain stable and failing to meet the actual needs of safe transport of PETG and PC sheets. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multifunctional sample rack that facilitates the transportation of PETG and PC sheets. This solution addresses the deficiencies of existing sheet transport sample racks in terms of rack adjustment, sheet protection, and stability.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A multifunctional sample rack for facilitating the transport of PETG and PC sheets includes a base plate. Columns are fixedly connected to the top left and right sides of the base plate. A first frame is located at the top of the base plate. Multiple first fixing rods are fixedly connected to the inner wall of the first frame. Multiple first rotating wheels are rotatably connected to the outer walls of the first fixing rods. A sliding plate is slidably connected to the outer walls of the columns. A second frame is located at the bottom of the sliding plate. Multiple second fixing rods are fixedly connected to the inner wall of the second frame. Multiple second rotating wheels are rotatably connected to the outer walls of the second fixing rods. Adjustment components are provided on the opposite side of the outer wall of the sliding plate. A rear side plate is fixedly connected to the top rear side of the base plate. Multiple slots are formed on the front inner wall of the rear side plate. A mounting plate is fixedly connected to the rear outer wall of the rear side plate. A tightening component is provided on the rear inner wall of the mounting plate.
[0007] Furthermore, multiple sleeves are fixedly connected to the inner walls of the opposite side of the base plate and the sliding plate, and each sleeve is provided with a spring on its inner wall. Each sleeve is slidably connected with a sliding rod, and the opposite side of the first frame and the sliding plate is fixedly connected to the opposite end of the sliding rod.
[0008] Furthermore, the opposite sides of the first spring are all connected to the inner wall of the sleeve, and the opposite sides of the first spring are all connected to the opposite end of the slide rod.
[0009] Furthermore, the adjustment assembly includes a mounting block fixedly connected to the outer wall of the opposite side of the sliding plate. The inner wall of the mounting block is provided with a second spring. The inner walls of the front and rear sides of the mounting block are slidably connected with insert rods. The opposite ends of the second springs are connected to the opposite side of the insert rods.
[0010] Furthermore, the outer walls of the insertion rods are all fixedly connected to sliding plates, and the outer walls of the sliding plates are all slidably connected to the inner walls of the mounting block.
[0011] Furthermore, several locking holes are provided on the opposite side of each column, and the size of the locking holes is adapted to the insertion rod.
[0012] Furthermore, the tightening assembly includes a rotating disk rotatably connected to the rear inner wall of the mounting plate. A worm gear is fixedly connected to the front end of the rotating disk. A worm wheel is meshed with the outer wall of the worm gear. A rotating rod is fixedly connected to the inner wall of the worm wheel. A winding wheel is fixedly connected to both the left and right ends of the rotating rod. A steel cable is provided on the inner wall of the winding wheel. A protective sleeve is provided on the outer wall of the front end of the steel cable.
[0013] Furthermore, the front end of the worm gear is rotatably connected to the inner wall of the front side of the mounting plate, and the left and right ends of the rotating rod are rotatably connected to the inner walls of the left and right sides of the mounting plate.
[0014] This utility model has the following beneficial effects:
[0015] In this invention, the first and second rotating wheels rotate around their respective fixed rods to reduce friction when picking up and placing the sheet metal, thus achieving convenient operation and preventing friction damage. Pulling the sliding plate causes the insertion rod to disengage from the locking hole, and the sliding plate slides along the column to move the second frame, enabling flexible adjustment of the frame spacing to accommodate sheets of different heights. The sliding rod slides inside the sleeve, causing the spring to deform, and the frame moves slightly with the sheet metal, achieving buffer protection, avoiding hard contact damage and enhancing stability.
[0016] In this invention, the rotation of the rotary disc drives the worm gear, worm wheel, and rotating rod to rotate, and the winding wheel rotates accordingly to wind the steel cable, thereby fixing the front side of the sheet metal and preventing it from slipping during transportation. When the worm gear drives the worm wheel to rotate, its self-locking property prevents the worm wheel from rotating in the opposite direction, thus ensuring a stable state after tightening and guaranteeing the fixing effect. The steel cable contacts the sheet metal through a protective sleeve, avoiding direct contact between the steel cable and the sheet metal, thereby protecting the surface of the sheet metal and the steel cable and reducing wear on both sides. Attached Figure Description
[0017] Figure 1 A perspective view of a multifunctional sample rack for facilitating the transportation of PETG and PC sheets proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the mounting plate structure of a multifunctional sample rack that facilitates the transportation of PETG and PC sheets, as proposed in this utility model.
[0019] Figure 3 This is a schematic diagram of the insertion rod structure of a multifunctional sample rack that facilitates the transportation of PETG and PC sheets, as proposed in this utility model.
[0020] Figure 4 This is a schematic diagram of the first fixing rod structure of a multifunctional sample rack for facilitating the transportation of PETG and PC sheets proposed in this utility model;
[0021] Figure 5 This is a schematic diagram of the rotating rod structure of a multifunctional sample rack that facilitates the transportation of PETG and PC sheets, as proposed in this utility model.
[0022] Legend:
[0023] 1. Base plate; 2. Column; 3. First frame; 4. First fixing rod; 5. First rotating wheel; 6. Rear side plate; 7. Slot; 8. Sliding plate; 9. Second frame; 10. Second fixing rod; 11. Second rotating wheel; 12. Sleeve; 13. Sliding rod; 14. Spring 1; 15. Mounting block; 16. Insert rod; 17. Slide plate; 18. Spring 2; 19. Mounting plate; 20. Rotating disc; 21. Worm gear; 22. Worm wheel; 23. Rotating rod; 24. Rewinding wheel; 25. Steel cable; 26. Protective sleeve. Detailed Implementation
[0024] 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.
[0025] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a multifunctional sample rack for facilitating the transportation of PETG and PC sheets. It includes a base plate 1, with columns 2 fixedly connected to the top left and right sides of the base plate 1. A first frame 3 is located at the top of the base plate 1. Multiple first fixing rods 4 are fixedly connected to the inner wall of the first frame 3. Multiple first rotating wheels 5 are rotatably connected to the outer walls of the first fixing rods 4. A sliding plate 8 is slidably connected to the outer wall of the columns 2. A second frame 9 is located at the bottom of the sliding plate 8. Multiple second fixing rods 10 are fixedly connected to the inner wall of the second frame 9. Multiple second rotating wheels 11 are rotatably connected to the outer walls of the second fixing rods 10. The outer wall of the sliding plate 8 is rotatably connected to the opposite side of the column 2. Each wall is equipped with an adjustment component. A rear side plate 6 is fixedly connected to the rear top of the base plate 1. Several slots 7 are provided on the front inner wall of the rear side plate 6. The adjustment component includes a mounting block 15 fixedly connected to the outer wall of the opposite side of the sliding plate 8. A spring 18 is provided on the inner wall of each mounting block 15. Insert rods 16 are slidably connected to the inner walls of both the front and rear sides of the mounting block 15. The opposite ends of the springs 18 are connected to the opposite side of the insert rods 16. A sliding plate 17 is fixedly connected to the outer wall of each insert rod 16. The outer wall of the sliding plate 17 is slidably connected to the inner wall of the mounting block 15. Several locking holes are provided on the opposite side of each column 2. The size of the locking holes is adapted to the insert rods 16. (Refer to...) Figure 4 Multiple sleeves 12 are fixedly connected to the inner walls of the opposite side of the base plate 1 and the sliding plate 8. Springs 14 are provided on the inner walls of the sleeves 12. Sliding rods 13 are slidably connected to the inner walls of the sleeves 12. The opposite side of the first frame 3 and the sliding plate 8 are fixedly connected to the opposite end of the sliding rod 13. The opposite side of the springs 14 is connected to the inner wall of the sleeves 12. The opposite side of the springs 14 is connected to the opposite end of the sliding rod 13.
[0026] Specifically, the column 2 provides a supporting foundation for the sliding plate 8 to slide and install, ensuring the overall structural stability. The first fixed rod 4 provides a stable mounting carrier for the first rotating wheel 5, ensuring that the first rotating wheel 5 can rotate normally. The first rotating wheel 5 can rotate around the first fixed rod 4, reducing friction between the PETG and PC sheets and the first frame 3 when placing or removing them, facilitating operation. The sliding plate 8 can slide up and down along the column 2 to adjust the distance between the second frame 9 and the first frame 3 to accommodate sheets of different heights. The second fixed rod 10 provides a stable mounting carrier for the second rotating wheel 11, ensuring that the second rotating wheel 11 can rotate normally. The second rotating wheel 11 can rotate around the second fixed rod 10, reducing friction between the PETG and PC sheets and the second frame 9 when placing or removing them, facilitating operation. The rear plate 6 blocks the rear side of the sheets placed on the frame, preventing the sheets from sliding backward during transportation or placement. The slot 7 can limit the placement of sheets of different widths, allowing the rear side of the sheet to be embedded in the slot 7, enhancing the stability of the sheet placement.
[0027] Mounting block 15 provides installation space for components such as spring 18 and insert rod 16 in the adjustment assembly, realizing the integration of adjustment functions. Spring 18 provides elastic driving force to insert rod 16, enabling insert rod 16 to automatically reset and engage with the locking hole of column 2, thus fixing sliding plate 8. Insert rod 16 can slide within mounting block 15. By manually pulling insert rod 16 out of the locking hole, the position of sliding plate 8 can be adjusted. After adjustment, releasing it resets and fixes the position. The elastic force of spring 18 acts directly on insert rod 16, ensuring that insert rod 16 remains stable when no external force is applied. The spring 18 is inserted into the locking hole of the column 2 to fix the position of the sliding plate 8. The elastic force of the second spring 18 is greater than the friction force of the insertion rod 16. This ensures that when the insertion rod 16 is not pulled by external force, the second spring 18 can push the insertion rod 16 to smoothly lock into the locking hole of the column 2, thereby achieving stable fixation of the sliding plate 8. At the same time, after pulling the insertion rod 16 to adjust the position, when the insertion rod 16 is released, the second spring 18 can overcome the friction force to drive the insertion rod 16 to reset and lock. When it is necessary to adjust the position of the second frame 9, the sliding plate 17 is pulled to disengage the insertion rod 16 from the locking hole, thereby achieving adjustment of the position of the second frame 9.
[0028] Sleeve 12 provides installation space for spring 14 and slide rod 13, and guides the sliding of slide rod 13. Spring 14 generates buffering force through elastic deformation, so that the first frame 3 and the second frame 9 have buffering capacity when subjected to pressure from the plate. Slide rod 13 can slide inside sleeve 12, and in conjunction with the elasticity of spring 14, realizes the buffered movement of the first frame 3 and the second frame 9, avoiding hard contact between the plate and the frame. Slide rod 13 transmits the buffering force of spring 14 to the first frame 3 and the second frame 9, so that the frame can move slightly with the placement of the plate, reducing damage to the plate.
[0029] Reference Figure 1 , Figure 2 and Figure 5 A mounting plate 19 is fixedly connected to the rear outer wall of the rear side plate 6. A tightening assembly is provided on the rear inner wall of the mounting plate 19. The tightening assembly includes a rotating disk 20 rotatably connected to the rear inner wall of the mounting plate 19. A worm 21 is fixedly connected to the front end of the rotating disk 20. A worm wheel 22 is meshed with the outer wall of the worm 21. A rotating rod 23 is fixedly connected to the inner wall of the worm wheel 22. A winding wheel 24 is fixedly connected to both the left and right ends of the rotating rod 23. A steel cable 25 is provided on the inner wall of the winding wheel 24. A protective sleeve 26 is provided on the outer wall of the front end of the steel cable 25. The front end of the worm 21 is rotatably connected to the front inner wall of the mounting plate 19. The left and right ends of the rotating rod 23 are rotatably connected to the left and right inner walls of the mounting plate 19.
[0030] Specifically, the mounting plate 19 provides a mounting carrier for the various components of the tightening assembly, ensuring stable installation of the tightening assembly. The rotating disk 20 can rotate on the mounting plate 19, providing a basis for the subsequent rotation operation of the worm gear 21. When the rotating disk 20 rotates, it can drive the worm gear 21 to rotate synchronously, realizing power transmission. When the worm gear 21 rotates, it drives the worm wheel 22 to rotate. At the same time, the self-locking characteristic of the worm gear 21 and worm wheel 22 is used to prevent the worm wheel 22 from rotating in the opposite direction, ensuring the stability of the tightened state. When the worm wheel 22 rotates, it drives the rotating rod 23 to rotate synchronously. The rotating rod 23 transmits power to the take-up reel 24. When the rotating rod 23 rotates, it drives the take-up reel 24 to rotate synchronously, realizing the winding or releasing operation of the steel cable 25. When the take-up reel 24 rotates, it can tighten the steel cable 25, which fixes the front side of the plate through the steel cable 25 to prevent the plate from slipping forward during transportation. The protective sleeve 26 prevents the steel cable 25 from directly contacting the plate, preventing the steel cable 25 from abrading the surface of the plate, while protecting the steel cable 25 and reducing wear. It can stably fix the plate to prevent it from slipping during transportation, and also protect the plate and the steel cable 25 to reduce wear.
[0031] Working principle: First, adjust the position of the second frame 9 to match the height of the board: pull the sliding plate 17, causing the insertion rod 16 to slide within the mounting block 15 and disengage from the locking hole of the column 2. At this time, the sliding plate 8 can slide up and down along the column 2, thereby moving the second frame 9 to adjust the distance with the first frame 3. After adjustment, release the sliding plate 17. The elastic force of the second spring 18 is greater than the friction force of the insertion rod 16, pushing the insertion rod 16 to reset and lock into the corresponding locking hole of the column 2, thus fixing the position of the sliding plate 8 and the second frame 9. Place the board on the first frame 3. During the placement process, the first rotating wheel 5 rotates around the first fixed rod 4 to reduce the friction between the board and the first frame 3. At the same time, the rear side of the board is embedded into the locking groove 7 of the rear plate 6. The locking groove 7 limits the board and enhances the placement stability. After the board is placed, it exerts pressure on the first frame 3, causing the first frame 3 to move. The movable slide rod 13 slides within the sleeve 12, compressing the spring 14. The spring 14 generates a buffering force through elastic deformation, preventing the plate from making hard contact with the first frame 3. If the plate is too high and contacts the second frame 9, the second frame 9 will drive the corresponding slide rod 13 to compress the spring 14, achieving the same buffering effect. The rotating disk 20 on the mounting plate 19 is rotated, causing the worm gear 21 to rotate within the mounting plate 19. The worm gear 21 drives the meshing worm wheel 22 to rotate. The self-locking characteristic of the worm gear 21 and worm wheel 22 prevents the worm wheel 22 from rotating in the opposite direction. The worm wheel 22 drives the rotating rod 23 to rotate within the mounting plate 19. The rotating rod 23 drives the two winding wheels 24 to rotate synchronously. The winding wheels 24 tighten the steel cable 25. The front end of the steel cable 25 contacts the front side of the plate through the protective sleeve 26, fixing the front side of the plate and preventing it from slipping forward during transportation.
[0032] 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 multifunctional sample rack for facilitating the transport of PETG and PC sheets, characterized in that, Includes a base plate (1), with columns (2) fixedly connected to the top left and right sides of the base plate (1). A first frame (3) is provided at the top of the base plate (1). Multiple first fixing rods (4) are fixedly connected to the inner wall of the first frame (3). Multiple first rotating wheels (5) are rotatably connected to the outer wall of each of the first fixing rods (4). A sliding plate (8) is slidably connected to the outer wall of the column (2). A second frame (9) is provided at the bottom of the sliding plate (8). The inner wall of the second frame (9) A plurality of second fixed rods (10) are fixedly connected, and a plurality of second rotating wheels (11) are rotatably connected to the outer wall of each of the second fixed rods (10). An adjustment component is provided on the outer wall of the opposite side of the sliding plate (8). A rear side plate (6) is fixedly connected to the rear top of the bottom plate (1). A plurality of slots (7) are provided on the front inner wall of the rear side plate (6). An installation plate (19) is fixedly connected to the rear outer wall of the rear side plate (6). A tightening component is provided on the rear inner wall of the installation plate (19).
2. The multifunctional sample rack for facilitating the transportation of PETG and PC sheets according to claim 1, characterized in that: Multiple sleeves (12) are fixedly connected to the inner walls of the opposite side of the base plate (1) and the sliding plate (8). A spring (14) is provided on the inner wall of each sleeve (12). A sliding rod (13) is slidably connected to the inner wall of each sleeve (12). The opposite side of the first frame (3) and the sliding plate (8) is fixedly connected to the opposite end of the sliding rod (13).
3. A multifunctional sample rack for facilitating the transportation of PETG and PC sheets according to claim 2, characterized in that: The opposite side of the first spring (14) is connected to the inner wall of the sleeve (12), and the opposite side of the first spring (14) is connected to the opposite end of the slide rod (13).
4. A multifunctional sample rack for facilitating the transportation of PETG and PC sheets according to claim 1, characterized in that: The adjustment assembly includes a mounting block (15) fixedly connected to the outer wall of the opposite side of the sliding plate (8). The inner wall of the mounting block (15) is provided with a second spring (18). The inner walls of the front and rear sides of the mounting block (15) are slidably connected with a plug rod (16). The opposite end of the second spring (18) is connected to the opposite side of the plug rod (16).
5. A multifunctional sample rack for facilitating the transportation of PETG and PC sheets according to claim 4, characterized in that: The outer walls of the insert rods (16) are all fixedly connected to the slide plates (17), and the outer walls of the slide plates (17) are all slidably connected to the inner walls of the mounting blocks (15).
6. A multifunctional sample rack for facilitating the transportation of PETG and PC sheets according to claim 1, characterized in that: Several locking holes are provided on the opposite side of each column (2), and the size of the locking holes is adapted to the insertion rod (16).
7. A multifunctional sample rack for facilitating the transportation of PETG and PC sheets according to claim 1, characterized in that: The tightening assembly includes a rotary disk (20) rotatably connected to the rear inner wall of the mounting plate (19). A worm gear (21) is fixedly connected to the front end of the rotary disk (20). A worm wheel (22) is meshed with the outer wall of the worm gear (21). A rotating rod (23) is fixedly connected to the inner wall of the worm wheel (22). A winding wheel (24) is fixedly connected to both the left and right ends of the rotating rod (23). A steel cable (25) is provided on the inner wall of the winding wheel (24). A protective sleeve (26) is provided on the outer wall of the front end of the steel cable (25).
8. A multifunctional sample rack for facilitating the transportation of PETG and PC sheets according to claim 7, characterized in that: The front end of the worm (21) is rotatably connected to the inner wall of the front side of the mounting plate (19), and the left and right ends of the rotating rod (23) are rotatably connected to the inner walls of the left and right sides of the mounting plate (19).