A light guide plate transportation protection device

Abstract

The utility model relates to light guide plate transportation protection technical field, concretely relates to a kind of light guide plate transportation protection device, including transport case, storage cavity is opened in transport case, the cavity bottom of storage cavity is equipped with installation cavity, fixed mounting is equipped with baffle between storage cavity and installation cavity, two lifting plates are slidably installed in installation cavity, the top of two lifting plates is fixedly installed with mounting seat, and two support columns are vertically fixedly connected, several equally spaced distribution's gyro wheels are installed on two mounting seats, L-shaped cover plate is arranged at the upper cavity mouth of storage cavity, L-shaped cover plate is fixedly connected with four support columns, when several gyro wheels extend to storage cavity by penetrating baffle, L-shaped cover plate is synchronously lifted to the upper of transport case, the utility model gyro wheel auxiliary access: by lifting mechanism control gyro wheel ascension, make light guide plate bottom and gyro wheel contact, operator can easily push and pull light guide plate, substantially reduce manual handling strength, and access efficiency is improved by more than 60%.

Description

Technical Field

[0001] This utility model relates to the field of light guide plate transportation protection technology, specifically to a protective device for light guide plate transportation. Background Technology

[0002] During the production, storage, and transportation of light guide plates, due to their brittle material and high surface precision requirements, they are highly susceptible to scratches, breakage, or decreased optical performance caused by vibration, friction, or static electricity attracting dust. Traditional transportation protection methods mainly have the following problems:

[0003] The fixing methods are limited: most of them use foam filling or binding to fix them, which cannot take into account both shock resistance and convenient access. When replacing the light guide plate, the packaging needs to be repeatedly disassembled, which is inefficient.

[0004] Insufficient scratch protection: Ordinary packaging linings (such as pearl cotton) are prone to static electricity that attracts debris, and the surface of the light guide plate is easily scratched by friction with the packaging material during handling.

[0005] To address the aforementioned issues, there is an urgent need for a transport protection device that can effectively prevent shocks and scratches while also enabling rapid access to the light guide plate. Utility Model Content

[0006] This utility model provides a protective device for transporting light guide plates, which achieves the following functions through the design of a liftable roller mechanism and a synchronous L-shaped cover plate:

[0007] Easy access: When the rollers rise, they contact the bottom of the light guide plate, allowing for easy push-pull access;

[0008] High stability during transport: After the rollers descend, the light guide plate is tightly pressed together by the L-shaped cover plate and the anti-static velvet cloth to prevent shaking;

[0009] Zero surface damage: Wrapped in anti-static fleece throughout to prevent mechanical contact scratches.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] This utility model provides a protective device for transporting light guide plates, including a transport box. The transport box has a storage cavity, and the bottom of the storage cavity has an installation cavity. A partition is fixedly installed between the storage cavity and the installation cavity. Two lifting plates are slidably mounted in the installation cavity. Each of the two lifting plates has a mounting seat fixedly installed on its top, and two support columns are vertically fixedly connected to it. Several equally spaced rollers are installed on each of the two mounting seats. An L-shaped cover is provided at the upper opening of the storage cavity, and the L-shaped cover is fixedly connected to the four support columns. When the rollers extend through the partition into the storage cavity, the L-shaped cover rises synchronously above the transport box. When the rollers extend through the partition into the installation cavity, the bottom of the L-shaped cover abuts against the opening of the storage cavity, and its top is flush with the top of the transport box.

[0012] Furthermore, the top of the partition, the bottom of the L-shaped cover, and the inner sidewall are all bonded with antistatic velvet. The partition and the antistatic velvet on the partition are connected by two square holes and four insertion holes. The two mounting bases are connected through the corresponding square holes, and the four support columns are connected through the corresponding insertion holes.

[0013] Furthermore, ear blocks are fixedly installed on both opposite outer walls of the transport box, and a round hole is opened through the mounting cavity on the back of the transport box.

[0014] Furthermore, a worm gear is rotatably mounted at the center of the bottom of the mounting cavity, a worm is meshed with the top of the worm gear, and gears are provided on both sides of the worm gear. The two gears and the worm are concentrically and fixedly connected through a synchronous shaft.

[0015] Furthermore, a first base and two second bases are fixedly installed at the bottom of the mounting cavity. The worm gear is rotatably installed on the two opposite inner sidewalls of the first base, and the two gears are rotatably installed on one side of the corresponding second base. One end of the worm is rotatably installed on the inner wall of the mounting cavity, and the other end extends through the round hole to the outside of the transport box, and a handwheel is vertically fixedly installed thereon.

[0016] Furthermore, racks are meshed on one side of both gears, and the top ends of both racks are vertically fixed to the bottom of the lifting plate.

[0017] The light guide plate transport protection device provided by this utility model has the following significant advantages compared with traditional transport packaging methods:

[0018] 1. Significantly improved accessibility

[0019] Roller-assisted storage and retrieval: The rollers are raised by a lifting mechanism so that the bottom of the light guide plate contacts the rollers. Operators can easily push and pull the light guide plate, which greatly reduces the intensity of manual handling and improves storage and retrieval efficiency by more than 60%.

[0020] L-shaped cover intelligent avoidance: When the rollers rise, the L-shaped cover rises simultaneously, completely avoiding the light guide plate access path, thus avoiding the cumbersome process of repeated disassembly and assembly required by traditional packaging.

[0021] 2. Comprehensive optimization of transportation stability

[0022] Dynamic locking mechanism: In transport mode, the rollers descend completely into the mounting cavity, and the L-shaped cover tightly presses the light guide plate together. Combined with the high friction characteristics of the anti-static velvet cloth, the light guide plate moves with zero displacement within the housing.

[0023] Upgraded vibration resistance: Tested by ISTA 3A standard, the maximum displacement of the light guide plate is <0.5mm in a vibration environment of 5Hz~50Hz (compared to ≥3mm in traditional methods), and the breakage rate is reduced to below 0.1%.

[0024] 3. Breakthrough in surface protection level

[0025] Fully enclosed anti-static design: The top and bottom surfaces and sides of the light guide plate are covered with anti-static cloth (surface resistance 10 ohms). 6 ~10 9 Ω) contact completely eliminates electrostatic adsorption of dust and mechanical scratches, increasing the surface yield rate to 99.9%.

[0026] No hard contact damage: The rollers and light guide plate only make brief contact during storage and retrieval, and are completely isolated during transportation, avoiding the pressure marks caused by traditional packaging due to fixing straps. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0028] Figure 1 This is a schematic diagram of the overall structure of a protective device for transporting light guide plates according to the present invention.

[0029] Figure 2 This is a schematic diagram of the overall structure of a protective device for transporting light guide plates after removing the L-shaped cover plate.

[0030] Figure 3 This utility model relates to a protective device for transporting light guide plates. Figure 2 Structural breakdown diagram;

[0031] Figure 4 This is a schematic diagram of a synchronous lifting structure of rollers and L-shaped cover plate for a protective device for transporting light guide plates according to this utility model.

[0032] The labels in the diagram represent:

[0033] 1. Transport box; 11. Installation cavity; 12. Partition; 13. Antistatic velvet cloth; 14. Ear block;

[0034] 2. L-shaped cover plate;

[0035] 31. Worm gear; 32. Worm; 33. Gear; 34. Rack; 35. Lifting plate; 36. Mounting base; 37. Roller; 38. Support column. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0037] The present invention will be further described below with reference to the embodiments.

[0038] Example 1

[0039] Reference Figure 1-4 This is the first embodiment of the present invention, which discloses a protective device for transporting light guide plates. It includes a transport box 1, a storage cavity inside the transport box 1, and an installation cavity 11 at the bottom of the storage cavity. A partition 12 is fixedly installed between the storage cavity and the installation cavity 11. Two lifting plates 35 are slidably mounted in the installation cavity 11. Each of the two lifting plates 35 has a mounting base 36 fixedly mounted on its top, and two support columns 38 are vertically fixedly connected to it. Several equally spaced rollers 37 are mounted on each of the two mounting bases 36. The rollers 37 are made of polyurethane. Made of ester material with a surface hardness of Shore A 75±5, it has high elasticity, wear resistance and antistatic properties, ensuring that it will not cause scratches when in contact with the bottom of the light guide plate. An L-shaped cover plate 2 is provided at the upper cavity opening of the storage cavity. The L-shaped cover plate 2 is fixedly connected to four support columns 38. When several rollers 37 extend through the partition 12 into the storage cavity, the L-shaped cover plate 2 rises simultaneously above the transport box 1. When several rollers 37 extend through the partition 12 into the mounting cavity 11, the bottom of the L-shaped cover plate 2 abuts against the cavity opening of the storage cavity, and the top is flush with the top of the transport box 1.

[0040] Example 2

[0041] Reference Figure 1-4This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the top of the partition 12, the bottom of the L-shaped cover plate 2, and the inner sidewall are all bonded with antistatic velvet cloth 13. The partition 12 is made of 6061 aluminum alloy with anodized surface treatment and a thickness of 5mm. It has the characteristics of high strength and light weight. The partition 12 and the antistatic velvet cloth 13 on the partition 12 are opened through two square holes and four insertion holes. Two mounting bases 36 are opened through the corresponding square holes, and four support columns 38 are opened through the corresponding insertion holes. The support columns 38 are made of 304 stainless steel with a diameter of 12mm and polished surface treatment to ensure smooth sliding. The two opposite outer sidewalls of the transport box 1 are fixedly installed with ear blocks 14. The ear blocks 14 are made of nylon 66 material and have excellent mechanical strength and fatigue resistance. The back of the transport box 1 is opened through the mounting cavity 11 with a round hole.

[0042] A worm gear 31 is rotatably mounted at the center of the bottom of the mounting cavity 11. The worm gear 31 is made of H62 brass, which has excellent wear resistance and self-lubricating properties. A worm 32 is meshed on the top of the worm gear 31. The worm 32 is made of 40Cr alloy steel, surface hardened, with a hardness of HRC45-50. Gears 33 are set on both sides of the worm gear 31. The gears 33 are made of 20CrMnTi alloy steel, carburized and quenched, with a tooth surface hardness of HRC58-62. Both gears 33 and worm 32 are concentrically fixedly connected by a synchronous shaft. The synchronous shaft is made of 45# steel and heat-treated. A first base and two second bases are fixedly mounted at the bottom of the mounting cavity 11. All bases are made of QT500-7 ductile iron. It has excellent shock absorption performance. The worm gear 31 is rotatably installed on the two opposite inner side walls of the first base. The two gears 33 are rotatably installed on the corresponding side of the second base. One end of the worm 32 is rotatably installed on the inner wall of the mounting cavity 11, and the other end extends through the round hole to the outside of the transport box 1. A handwheel is vertically fixedly installed. The handwheel is made of ABS engineering plastic and covered with an anti-slip rubber layer. A rack 34 is meshed on one side of each of the two gears 33. The rack 34 is made of the same 20CrMnTi alloy steel as the gears 33 to ensure meshing accuracy. The tops of the two racks 34 are vertically fixedly connected to the bottom of the lifting plate 35. The lifting plate 35 is made of 7075 aluminum alloy and has been heat treated with T6, which has high strength and high rigidity.

[0043] The remaining structure is the same as that in Example 1.

[0044] Example 3 (Heavyweight Light Guide Plate Adaptation Solution)

[0045] When transporting light guide plates with a weight greater than 20kg, the transmission torque of the worm gear 32 needs to be specifically verified.

[0046] Torque Calculation

[0047] According to mechanical design principles, the theoretical minimum torque that the worm gear 32 needs to provide is:

[0048] M = F × R =20kg × 9.8m / s² × 0.05m = 9.8

[0049] in:

[0050] F: Weight of the light guide plate (20kg×9.8m / s²=196N);

[0051] R: Worm pitch circle radius (taken as 0.05m, based on worm design with module 2).

[0052] Safety factor design

[0053] When actually selecting a worm gear 32, a 200% safety margin should be reserved for the rated torque.

[0054] Rated ≥9.8

[0055] In this embodiment, the worm gear 32 is made of 40Cr alloy steel (quenched and tempered, hardness HRC45-50), and the actual rated torque is 22 N·m, which meets the requirements.

[0056] Structural reinforcement measures

[0057] Worm gear 31: Module increased from 1.5 to 2, tooth thickness increased by 33%;

[0058] Handwheel: Diameter increased to 150mm (originally 100mm), operating force reduced to 13N (compliant with ergonomic standards);

[0059] Rack 34: Width increased from 20mm to 25mm, bending strength increased by 56%.

[0060] Verification Test

[0061] Load testing was conducted according to JB / T 9051-2017 "Calculation Method for Load Capacity of Worm Gear Drives":

[0062] After 1000 continuous cycles under a dynamic load of 25kg, the worm wear is <0.01mm;

[0063] Transmission efficiency remains ≥85% (lubrication conditions: ISO VG320 worm gear oil).

[0064] Detailed work process

[0065] Light guide plate storage stage

[0066] The operator places the light guide plate horizontally inside the storage cavity of the transport box 1, with the bottom of the light guide plate in contact with the anti-static velvet cloth 13 on top of the partition 12. At this time, the lifting plate 35 is in the lowered position, and the rollers 37 are completely retracted into the mounting cavity 11, not in contact with the light guide plate. The bottom of the L-shaped cover plate 2 fits tightly against the opening of the storage cavity, firmly pressing the light guide plate into the storage cavity.

[0067] Access mode startup

[0068] When the light guide plate needs to be removed, the operator rotates the handwheel on the back of the transport box 1. The handwheel drives the worm gear 32 to rotate, and the worm gear 32 drives the worm wheel 31 to rotate. The worm wheel 31 drives the gears 33 on both sides to rotate synchronously through the synchronous shaft, and the gears 33 mesh with the rack 34 to move upward.

[0069] Roller 37 lifting process

[0070] The rack 34 pushes the lifting plate 35 to rise vertically. The lifting plate 35 drives the mounting base 36 and its rollers 37 to pass through the square hole of the partition 12 into the storage cavity. At the same time, the support column 38 moves upward through the insertion hole of the partition 12, causing the L-shaped cover plate 2 to rise above the transport box 1.

[0071] Light guide plate removal operation

[0072] After the roller 37 is fully extended, it contacts the bottom of the light guide plate, slightly lifting the light guide plate. The operator can easily pull the light guide plate, using the rolling action of the roller 37 to slide the light guide plate out of the storage cavity. During this process, the L-shaped cover 2 remains in the upper position and does not obstruct the movement of the light guide plate.

[0073] Light guide plate storage operation

[0074] When the light guide plate needs to be stored, the operator pushes it into the storage cavity along roller 37. Supported by roller 37, the light guide plate slides smoothly into the designated position.

[0075] Transportation mode switching

[0076] After the storage and retrieval operation is completed, rotate the handwheel in the opposite direction. The worm gear 32 drives the worm wheel 31 to reverse, and the gear 33 drives the rack 34 to descend. The lifting plate 35 descends accordingly, and the roller 37 retracts into the mounting cavity 11. At the same time, the support column 38 drives the L-shaped cover plate 2 to descend until its bottom is completely in contact with the opening of the storage cavity, firmly pressing the light guide plate.

[0077] Fixed state of transport

[0078] In transport mode, the light guide plate is completely wrapped by the antistatic velvet cloth 13 of the L-shaped cover plate 2 and the partition plate 12. The upper and lower surfaces of the light guide plate are in close contact with the antistatic velvet cloth 13, and the frictional resistance prevents displacement and shaking during transportation. The rollers 37 are completely detached from the light guide plate to avoid unnecessary vibration.

[0079] Achieved protective effect

[0080] The antistatic fleece 13 not only provides frictional resistance but also effectively conducts static electricity and prevents dust adsorption. The lugs 14 of the transport box 1 facilitate handling and securing, and the overall structure ensures that the light guide plate remains stable during transportation, avoiding damage or surface damage caused by vibration.

[0081] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A protective device for transporting light guide plates, comprising a transport box (1), wherein a storage cavity is provided inside the transport box (1), and an installation cavity (11) is provided at the bottom of the storage cavity, characterized in that, A partition (12) is fixedly installed between the storage cavity and the installation cavity (11). The installation cavity (11) has two lifting plates (35) that are slidably installed. The top of each of the two lifting plates (35) is fixedly installed with a mounting seat (36) and two support columns (38) that are vertically fixedly connected. Each of the two mounting seats (36) is equipped with several rollers (37) that are evenly distributed. An L-shaped cover plate (2) is provided at the upper cavity opening of the storage cavity. The L-shaped cover plate (2) is fixedly connected to the four support columns (38). When several of the rollers (37) penetrate the partition (12) and extend into the storage cavity, the L-shaped cover plate (2) rises synchronously above the transport box (1). When several of the rollers (37) penetrate the partition (12) and extend into the installation cavity (11), the bottom of the L-shaped cover plate (2) abuts against the cavity opening of the storage cavity, and the top is flush with the top of the transport box (1).

2. The protective device for transporting light guide plates according to claim 1, characterized in that, The top of the partition (12), the bottom of the L-shaped cover (2) and the inner sidewall are all covered with antistatic velvet cloth (13). The partition (12) and the antistatic velvet cloth (13) on the partition (12) are connected by two square holes and four insertion holes. The two mounting bases (36) are connected through the corresponding square holes, and the four support columns (38) are connected through the corresponding insertion holes.

3. The protective device for transporting light guide plates according to claim 1, characterized in that, The transport box (1) has ear blocks (14) fixedly installed on both opposite outer walls, and a round hole is opened on the back of the transport box (1) through the mounting cavity (11).

4. A protective device for transporting light guide plates according to claim 3, characterized in that, A worm gear (31) is rotatably mounted at the center of the bottom of the mounting cavity (11). A worm (32) is meshed on the top of the worm gear (31). Gears (33) are provided on both sides of the worm gear (31). The two gears (33) and the worm (32) are concentrically fixedly connected through a synchronous shaft.

5. A protective device for transporting light guide plates according to claim 4, characterized in that, The bottom of the mounting cavity (11) is fixedly mounted with a first base and two second bases. The worm gear (31) is rotatably mounted on the two opposite inner sidewalls of the first base. The two gears (33) are rotatably mounted on one side of the corresponding second base. One end of the worm (32) is rotatably mounted on the inner wall of the mounting cavity (11), and the other end extends through the round hole to the outside of the transport box (1) and is vertically fixedly mounted with a handwheel.

6. A protective device for transporting light guide plates according to claim 4, characterized in that, Both gears (33) have racks (34) meshing on one side, and the tops of both racks (34) are vertically fixed to the bottom of the lifting plate (35).

Images