Multi-layer folding storage crystal bar transfer cart
By combining a multi-layered folding storage structure with self-locking omnidirectional wheels, the problems of flexible storage and stability of existing crystal rod transport trolleys are solved, enabling stable transport and convenient storage of crystal rods of different specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALI HONGXIN SOLAR ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
AI Technical Summary
The existing crystal rod transport trolley has a fixed storage structure, which cannot be flexibly adjusted according to the size and quantity of crystal rods, thus limiting its applicability. Furthermore, it lacks a reliable and stable structure during transport, making it prone to sliding due to uneven ground or external impacts, posing a risk of crystal rods falling off.
A multi-layered folding crystal rod transport trolley was designed, featuring detachable and slidable placement plates and racks, combined with self-locking casters and anti-slip grooves. The lifting and lowering of the contact plate is achieved through the cooperation of screws and guide rods, increasing friction. The double braking of the self-locking casters ensures the stability of the trolley.
It achieves flexible storage and stable transportation of crystal rods of different specifications. It is highly adaptable when expanding storage space and easy to store when reducing volume. It is suitable for multiple scenarios, especially preventing crystal rods from slipping when placed on uneven ground or for long periods of time.
Smart Images

Figure CN224528713U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semiconductor material processing equipment technology, and in particular to a multi-layer folding crystal rod transfer trolley. Background Technology
[0002] In the production and transportation of semiconductor crystal ingots, ingot transfer trolleys are indispensable equipment. Currently, existing ingot transfer trolleys have the following technical shortcomings:
[0003] The existing crystal rod transport trolley has a fixed storage structure, and the multi-layer placement rack cannot be flexibly adjusted according to the size and quantity of crystal rods, which limits its applicability. In addition, it lacks a reliable and stable structure during the transport process and relies solely on the universal wheels for braking. It is prone to sliding due to uneven ground or external impact, which poses a risk of crystal rods falling off.
[0004] To address these shortcomings, we proposed a multi-layered folding crystal rod transport trolley. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-layered folding crystal rod transport trolley.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-layer folding crystal rod transfer trolley, comprising a trolley, a placement plate welded to the inner wall of the trolley, and a crystal rod placement rack provided on the placement plate; a support frame welded to the lower end of the outer wall of the trolley, and a screw and a guide rod penetrating the surface of the support frame; a contact plate fixedly installed at the lower end of the screw and the guide rod, and an anti-slip groove provided on the side of the contact plate away from the screw and the guide rod; a limit block threadedly connected to the other end of the guide rod; a storage groove provided on the side of the support frame away from the trolley, and a hexagonal nut provided in the storage groove, and the hexagonal nut threadedly engaging with the screw.
[0007] The trolley is fixedly equipped with self-locking casters, and there are multiple self-locking casters, which are evenly distributed at the four corners of the trolley's bottom surface.
[0008] The outer wall of the trolley is hinged to a box door, and a lock handle is fixedly installed on the surface of the box door.
[0009] The placement plates are provided in multiple ways, and the multiple placement plates are equally distributed on both sides of the inner wall of the trolley.
[0010] The crystal rod placement rack is provided in multiple ways, and all of the crystal rod placement racks are slidably connected to the placement plate.
[0011] The guide rod is arranged parallel to the screw, and the length of the guide rod is less than the length of the screw.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model features a detachable and slidable design for multi-layer crystal rod placement racks and placement plates, allowing for vertical adjustment of the rack's position to accommodate placement needs of crystal rods of different specifications. This design expands storage space during transport and reduces volume when not in use, extending its applicability from crystal rod production workshops to warehousing, transportation, and other related processes.
[0014] 2. In this utility model, the screw is driven to lift by a hexagonal nut, which converts the rotational motion into the linear motion of the contact plate. When the contact plate contacts the ground, the anti-slip texture generates a large friction force with the ground. Combined with the braking of the self-locking universal wheel, the stability of the trolley is doubled, preventing the crystal rod from being damaged by the trolley sliding during the transfer process. It is especially suitable for scenarios where the ground is uneven or where long-term positioning is required. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the multi-layer folding crystal rod transport trolley proposed in this utility model.
[0017] Figure 2 This is a schematic diagram of the external structure of the multi-layer folding crystal rod transport trolley proposed in this utility model.
[0018] Figure 3 for Figure 1 A schematic diagram of a partial structure;
[0019] Figure 4 for Figure 3 A three-dimensional image.
[0020] Legend:
[0021] 1. Trolley; 2. Placement plate; 3. Crystal rod placement rack; 4. Self-locking casters; 5. Hinges; 6. Box door; 7. Lock handle; 8. Support frame; 9. Screw; 10. Guide rod; 11. Contact plate; 12. Limiting block; 13. Storage slot; 14. Hexagonal nut. Detailed Implementation
[0022] 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.
[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0024] Please refer to Figure 1-4 A multi-layered folding crystal rod transport trolley includes a trolley 1, with a placement plate 2 welded to the inner wall of the trolley 1, and a crystal rod placement rack 3 installed on the placement plate 2.
[0025] The trolley 1 is an integral frame structure. The inner wall is fixed with a placement plate 2 by welding to form a horizontal bearing surface. The crystal rod placement rack 3 is installed on the placement plate 2 for layered storage of crystal rods. The welding connection ensures the stability of the structure and avoids shaking during transportation.
[0026] The lower end of the outer wall of the trolley 1 is welded with a support frame 8, and a screw 9 and a guide rod 10 are provided through the surface of the support frame 8.
[0027] The support frame 8 is fixed to the lower end of the outer wall of the trolley 1 as a support structure. The screw 9 and the guide rod 10 pass vertically through the support frame 8. The two work together to form a lifting mechanism to provide motion guidance for the contact plate 11.
[0028] A contact plate 11 is fixedly installed at the lower end of the screw 9 and the guide rod 10, and an anti-slip groove is provided on the surface of the contact plate 11 away from the screw 9 and the guide rod 10.
[0029] The contact plate 11 is connected to the support frame 8 via the screw 9 and the guide rod 10. The anti-slip groove at the lower end can increase the friction with the ground. When the screw 9 drives the contact plate 11 to descend, the anti-slip groove contacts the ground to prevent the trolley 1 from sliding.
[0030] The other end of the guide rod 10 is threadedly connected to a limit block 12. A storage groove 13 is provided on the surface of the support frame 8 away from the trolley 1, and a hexagonal nut 14 is provided in the storage groove 13, and the hexagonal nut 14 is threadedly engaged with the screw rod 9.
[0031] The limiting block 12 is used to limit the descent height of the guide rod 10 and prevent the screw 9 from excessively detaching from the support frame 8; the storage slot 13 has a built-in hexagonal nut 14, which can drive the screw 9 to rise and fall along the guide rod 10 by rotating the hexagonal nut 14, thereby adjusting the position of the contact plate 11.
[0032] Please refer to Figure 1 and Figure 2 The bottom surface of the trolley 1 is fixedly equipped with self-locking casters 4, and there are multiple self-locking casters 4, which are evenly distributed at the four corners of the bottom surface of the trolley 1.
[0033] The four self-locking casters 4 at the corners allow the trolley 1 to move flexibly, and the wheels can be fixed by the locking mechanism. Together with the abutment plate 11, they provide double protection for stability during transport.
[0034] Please refer to Figure 2 The outer wall of the trolley 1 is hinged to a box door 6 via a hinge 5, and a lock handle 7 is fixedly installed on the surface of the box door 6.
[0035] The box door 6 is hinged to the main body of the trolley 1 via hinge 5 and can be opened and closed; the lock handle 7 is used to lock the box door 6 when closed to prevent the crystal rod from falling or being hit by external force during the transfer process.
[0036] Please refer to Figure 1 Multiple placement plates 2 are provided, and the multiple placement plates 2 are equidistantly distributed on both sides of the inner wall of the trolley 1.
[0037] Multiple placement plates 2, evenly distributed on both sides of the inner wall, form a multi-layer storage space, which can vertically expand the number of crystal rods stored to adapt to different transportation needs.
[0038] Please refer to Figure 1 Multiple crystal rod placement racks 3 are provided, and all multiple crystal rod placement racks 3 are slidably connected to the placement plate 2.
[0039] Multiple crystal rod racks 3 can slide laterally along the placement plate 2. By adjusting their positions, they can be adapted to crystal rods of different lengths, or the layout can be adjusted according to the number of rods to be stored, thereby improving storage flexibility.
[0040] Please refer to the reference. Figure 3 and 4 The guide rod 10 is arranged parallel to the screw 9, and the length of the guide rod 10 is less than the length of the screw 9.
[0041] The guide rod 10 is parallel to the screw 9 to ensure that the contact plate 11 remains vertical when it is raised and lowered, and to avoid deviation; the guide rod 10 is relatively short, allowing the screw 9 to rise and fall within a certain range, while the upper limit of the stroke is controlled by the limit block 12.
[0042] Working principle: In use, first adjust the position of the crystal rod rack 3 by sliding along the placement plate 2 according to the size of the crystal rod. Multiple placement plates 2 distributed at equal intervals inside the trolley 1 are used to achieve multi-layer storage. When pushing the trolley 1, the self-locking universal wheels 4 at the four corners of the bottom can move flexibly. After reaching the position, rotate the hexagonal nut 14 in the storage slot 13 on the support frame 8 to make it threaded with the screw 9. Under the guidance of the parallel guide rod 10 and the limiting block 12, the rotational motion is converted into the linear motion of the screw 9, which drives the contact plate 11 to descend until its anti-slip groove contacts the ground, increasing the friction. With the double braking of the self-locking universal wheels 4, the trolley 1 is stabilized. When storing or retrieving crystal rods, open the box door 6 through the hinge 5 and lock the box door 6 with the lock handle 7 to ensure safety. When not in use, multiple crystal rod racks 3 can be stacked together to reduce the volume.
[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-layer folding crystal rod transport trolley, comprising a trolley (1), characterized in that, The inner wall of the trolley (1) is welded with a placement plate (2), and a crystal rod placement rack (3) is provided on the placement plate (2). The lower end of the outer wall of the trolley (1) is welded with a support frame (8), and a screw (9) and a guide rod (10) are provided through the surface of the support frame (8). A contact plate (11) is fixedly installed at the lower end of the screw (9) and the guide rod (10), and an anti-slip groove is provided on the side surface of the contact plate (11) away from the screw (9) and the guide rod (10). The other end of the guide rod (10) is threadedly connected to a limit block (12). A storage groove (13) is provided on the side surface of the support frame (8) away from the trolley (1), and a hexagonal nut (14) is provided in the storage groove (13), and the hexagonal nut (14) is threadedly engaged with the screw (9).
2. The multi-layer folding crystal rod transport trolley according to claim 1, characterized in that, The bottom surface of the trolley (1) is fixedly equipped with self-locking casters (4), and there are multiple self-locking casters (4), which are evenly distributed at the four corners of the bottom surface of the trolley (1).
3. The multi-layer folding crystal rod transport trolley according to claim 1, characterized in that, The outer wall of the trolley (1) is hinged to a box door (6) by a hinge (5), and a lock handle (7) is fixedly installed on the surface of the box door (6).
4. The multi-layer folding crystal rod transport trolley according to claim 1, characterized in that, The placement plate (2) is provided in multiple ways, and the multiple placement plates (2) are equidistantly distributed on both sides of the inner wall of the trolley (1).
5. The multi-layer folding crystal rod transport trolley according to claim 1, characterized in that, The crystal rod placement rack (3) is provided in multiple ways, and all of the crystal rod placement racks (3) are slidably connected to the placement plate (2).
6. The multi-layer folding crystal rod transport trolley according to claim 1, characterized in that, The guide rod (10) is arranged parallel to the screw (9), and the length of the guide rod (10) is less than the length of the screw (9).