A handling pallet for automotive parts

Abstract

A kind of carrying rack for automobile parts, including carrying plate and multiple side protection components, carrying plate includes rectangular main carrying plate, long side carrying plate, wide side carrying plate and corner carrying plate;The bottom of main carrying plate is fixed with first frame, and first frame has upper connecting outer tube and lower connecting outer tube;The lower of long side, wide side carrying plate is respectively fixed with second frame, third frame;One of second, third frame has first connecting outer tube, and the other has second connecting outer tube;First, second connecting inner tube fixed in first, second connecting outer tube respectively are slidably connected with upper, lower connecting outer tube;Second, third frame also has third, fourth connecting outer tube respectively, and third, fourth connecting outer tube are arranged at the outside of long side, wide side carrying plate respectively;The third, fourth connecting inner tube slidably connected with third, fourth connecting outer tube and arranged in the same direction is fixed to the two sides of adjacent corner carrying plate respectively with third, fourth connecting outer tube.This carrying rack can adjust the size of carrying plate, and has high applicability.

Description

Technical Field

[0001] This utility model belongs to the field of material rack technology, specifically relating to a material rack for handling automotive parts. Background Technology

[0002] With the rapid development of the automotive industry, especially in the field of new energy vehicles, the pace of updates and iterations of auto parts has accelerated significantly. For auto parts suppliers, the launch of new models often means the need to adapt parts to new specifications, and existing packaging solutions (such as fixed-size racks) may quickly become obsolete because they cannot accommodate the dimensions of new parts. This not only leads suppliers to frequently invest resources in developing new packaging, but also results in a large amount of existing packaging (racks) becoming idle inventory due to reduced orders for older parts, causing huge resource waste and warehousing cost pressures.

[0003] Authorization notice number CN114715541B provides a material rack for automotive sunroof assemblies. The rack body is a hollow rectangular frame structure with fixed dimensions. If the dimensions of the parts or the pallet change, the rack body becomes unusable, and the old rack body becomes stagnant inventory, wasting resources and increasing warehousing costs; redesigning and manufacturing a new rack body increases packaging and transportation costs. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a material handling rack for automotive parts.

[0005] To achieve the above objectives, this utility model discloses a material handling rack for automotive parts, comprising a support plate and multiple side protection components. The bottom of the support plate is provided with support feet, and each side of the support plate is provided with one of the side protection components. The support plate includes a main support plate, a long side support plate, a wide side support plate, and corner support plates.

[0006] The main support plate is a rectangular plate, and a first frame is fixed to the bottom of the main support plate. The first frame has an upper connecting outer tube and a lower connecting outer tube. One of the upper connecting outer tube and the lower connecting outer tube is set along the long side of the main support plate and fixed to the bottom of the main support plate, and the other is set along the wide side of the main support plate and fixed to the bottom of the upper connecting outer tube.

[0007] The long-side bearing plate, wide-side bearing plate, and corner bearing plate are all located below the main bearing plate and are staggered in height and fitted with gaps.

[0008] The lengths of the long-side support plate and the wide-side support plate are adapted to the lengths of the long and wide sides of the main support plate, respectively. A second frame is fixed below the long-side support plate, and a third frame is fixed below the wide-side support plate. One of the second and third frames has a first connecting outer tube, and the other has a second connecting outer tube. A first connecting inner tube is provided inside the first connecting outer tube, one end of which is fixed inside the first connecting outer tube, and the other end of which is slidably connected to the upper connecting outer tube. A second connecting inner tube is provided inside the second connecting outer tube, one end of which is fixed inside the second connecting outer tube, and the other end of which is slidably connected to the lower connecting outer tube.

[0009] The second frame also has a third connecting outer tube, which is located on the long side of the long side bearing plate away from the main bearing plate; the third frame also has a fourth connecting outer tube, which is located on the long side of the wide side bearing plate away from the main bearing plate; a third connecting inner tube and a fourth connecting inner tube are fixed to two adjacent sides of the corner bearing plate, respectively, and the third connecting inner tube and the fourth connecting inner tube are arranged in the same direction as the third connecting outer tube and the fourth connecting outer tube, respectively. The free end of the third connecting inner tube is slidably connected to the third connecting outer tube, and the free end of the fourth connecting inner tube is slidably connected to the fourth connecting outer tube.

[0010] Preferably, the main support plate is provided with long side support plates on both long sides and wide side support plates on both wide sides, and corner support plates are provided between the long side support plates and the wide side support plates;

[0011] Both ends of the third and fourth connecting outer tubes are provided with mounting columns. The mounting columns are arranged opposite to the corresponding connecting inner tubes. The mounting columns are U-shaped on the side. The top of the mounting column is provided with a slot, and the side wall of the mounting column is provided with a first strip hole.

[0012] The side protection assembly includes a protective frame and a protective component fixed to the protective frame. The protective frame has a fifth connecting inner tube, which is provided with a locking block and a rotating shaft. The locking block is locked in the locking slot, and the rotating shaft is rotatably inserted into a first strip hole and can slide along the first strip hole.

[0013] Preferably, the two vertical sidewalls of the third connecting inner tube are each provided with a first through hole and a second strip hole on the same horizontal plane, and the two first through holes and the two second strip holes are arranged opposite to each other; the two vertical sidewalls of the third connecting outer tube are each provided with a second through hole; the third connecting inner tube is connected to the third connecting outer tube by a first bolt. When the first bolt passes through the second through hole and the first through hole, the third connecting inner tube is fixed inside the third connecting outer tube, and the corner bearing plate is completely located below the corresponding bearing plate. When the first bolt passes through the second through hole and the second strip hole, the third connecting inner tube can slide out of the third connecting outer tube, and the corner bearing plate can extend out of the corresponding bearing plate.

[0014] Preferably, both side walls of the mounting column are provided with the first strip-shaped hole, and the two first strip-shaped holes are arranged opposite to each other; both side walls of the fifth connecting inner tube are provided with the third through hole, and the two third through holes are coaxially arranged and opposite to the first strip-shaped hole; the fifth connecting tube is provided with a support foot, the support foot includes a hollow shaft and a limiting block, the hollow shaft is coaxially arranged with the third through hole, one end of the limiting block is fixed to the hollow shaft, and the other end of the limiting block passes downward through the corresponding connecting outer tube and abuts against the corresponding connecting inner tube;

[0015] The rotating shaft is a second bolt, which passes through the mounting column, the fifth connecting inner tube, and the hollow shaft and is locked by a nut; the mounting column is provided with a clearance hole, and the end of the limiting block away from the hollow shaft can extend out of the mounting column through the clearance hole.

[0016] Preferably, the mounting column is welded to the corresponding connecting outer tube, and the bottom of the mounting column is provided with a limiting part, which passes downward through the corresponding connecting outer tube and presses against the corresponding connecting inner tube.

[0017] Preferably, the long-side bearing plate is located below the main bearing plate, and there are two upper connecting outer tubes and two lower connecting outer tubes;

[0018] The second frame includes a first support tube, the third connecting outer tube, and two second connecting outer tubes; the first support tube is arranged along the length of the long side bearing plate and fixed to the bottom of the long side bearing plate, with the two ends of the first support tube spaced apart from the two ends of the long side bearing plate; the vertical sidewall of the third connecting outer tube near the main bearing plate is welded and fixed to the long side of the long side bearing plate; the two second connecting outer tubes are fixed to the bottom of the first support tube and the third connecting outer tube.

[0019] Preferably, the third frame includes the fourth connecting outer tube and two first connecting outer tubes, the two first connecting outer tubes are vertically fixed between the two ends of the fourth connecting outer tube, the middle position of the fourth connecting outer tube and the two first connecting outer tubes form a first connecting area, and the end position of the fourth connecting outer tube and the corresponding first connecting outer tube form a second connecting area.

[0020] The wide-side support plate includes a first support plate and two second support plates. The first support plate is disposed in the first connection area and welded and fixed to the vertical side wall of the connecting outer pipe corresponding to the area. The second support plate is disposed in the second connection area and welded and fixed to the vertical side wall of the connecting outer pipe corresponding to the area. The second support plate is located below the long-side support plate.

[0021] Preferably, the third connecting inner tube and the fourth connecting inner tube are vertically fixedly connected, the two adjacent sides of the corner bearing plate are welded to the third connecting inner tube and the fourth connecting inner tube and are located below the corresponding second bearing plate, and the bottom of the corner bearing plate is provided with a reinforcing rib group.

[0022] Preferably, the bottom of both ends of the third connecting outer tube and the fourth connecting outer tube are provided with the support feet.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] The second frame of the long-side support plate and the third frame of the wide-side support plate are slidably connected to the first frame of the main support plate via corresponding connecting inner tubes. The material handling rack can extend / retract the long-side and wide-side support plates from the main support plate according to actual handling needs, adjusting the length and width dimensions of the support plates to improve applicability. The corner support plates are slidably connected to the second and third frames via third and fourth connecting inner tubes. The corner support plates can move synchronously with the second and third frames, providing effective support at the corner positions between the long-side and wide-side support plates.

[0025] The long-side bearing plate, wide-side bearing plate, and corner bearing plate are staggered in height and fitted with gaps. This not only avoids structural interference between the bearing plates, but also ensures that when the bearing plate is pressed down by the product, the adjacent two layers of bearing plates can be staggered to support each other, thus improving structural reliability. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram (minimum dimension state) of a material handling rack for automotive parts, as shown in the embodiment.

[0027] Figure 2 for Figure 1 Schematic diagram of the exploded three-dimensional structure of the load-bearing plate and frame;

[0028] Figure 3 for Figure 2 Schematic diagram of the exploded three-dimensional structure of the main load-bearing plate and the first frame;

[0029] Figure 4 for Figure 2 Schematic diagram of the exploded three-dimensional structure of the middle and long side load-bearing plate and the second frame;

[0030] Figure 5 for Figure 2 Schematic diagram of the exploded three-dimensional structure of the middle-width load-bearing plate and the third frame;

[0031] Figure 6 for Figure 2 3D exploded view of the bearing plate and connecting pipe at the center and corners;

[0032] Figure 7 for Figure 1 A schematic diagram of the frame structure under the current state;

[0033] Figure 8 This is a three-dimensional structural diagram of the material handling rack (maximum size).

[0034] Figure 9 for Figure 8 A schematic diagram of the frame structure under the current state;

[0035] Figure 10 for Figure 1 A three-dimensional exploded view of the protective frame;

[0036] Figure 11 for Figure 10 A magnified view of a portion of point A in the middle;

[0037] Figure 12 These are the top and sectional views of the material handling rack;

[0038] Figure 13 for Figure 12 A magnified view of a portion of point A in the middle;

[0039] Figure 14 A schematic diagram of the structure for installing the column to press against the third connecting inner tube;

[0040] Side protection assembly 100; protective frame 110; fifth connecting inner tube 120; locking block 121; third through hole 123; support leg 124; hollow shaft 1241; limiting block 1242; protective component 130; telescopic rod 140; inverted U-shaped frame 150; transverse connecting rod 151; sixth connecting inner tube 152; dustproof curtain 160;

[0041] Support foot 200;

[0042] Main support plate 300; first frame 310; upper connecting outer tube 320; second support tube 330; lower connecting outer tube 340; sixth through hole 341;

[0043] Long side bearing plate 400; second frame 410; first support tube 420; third connecting outer tube 430; second through hole 431; second connecting outer tube 440; second connecting inner tube 450; fifth through hole 451; mounting column 460; slot 461; first strip hole 462; clearance hole 463; limiting part 464;

[0044] Wide-side support plate 500; third frame 510; fourth connecting outer tube 520; first connecting outer tube 530; first connecting area 540; second connecting area 550; first support plate 560; second support plate 570; first connecting inner tube 580; third support tube 590;

[0045] Corner bearing plate 600; third connecting inner tube 610; first through hole 611; second strip hole 612; fourth connecting inner tube 620; reinforcing rib group 630. Detailed Implementation

[0046] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Existing material handling racks can accommodate primary packaging (the innermost layer of packaging that directly contacts the surface of the automotive parts) and secondary packaging (secondary containers that hold the primary packaging). For primary packaging, automotive parts are stacked within the racks; for secondary packaging, the parts are first packaged, and then the packaged parts are placed in the racks. Regardless of whether it's used for primary or secondary packaging, when automotive parts are updated and their dimensions change, the rack dimensions become incompatible, requiring the redesign and manufacture of new racks. This leads to resource waste and increased handling costs.

[0048] This embodiment provides a material handling rack for automotive parts, see [link / reference]. Figures 1-14 The system includes a support plate and multiple side protection assemblies 100. Support feet 200 are fixed to the bottom of the support plate, allowing it to rest on the ground. Each side of the support plate is equipped with a side protection assembly 100, which provides lateral protection for automotive components placed on the support plate.

[0049] In this embodiment, the support plate includes a main support plate 300, long-side support plates 400, wide-side support plates 500, and corner support plates 600. Specifically, the main support plate 300 is a rectangular plate, with the aforementioned long-side support plates 400 provided on both long sides of the rectangular plate, arranged along the length direction of the main support plate 300. The aforementioned wide-side support plates 500 are provided on both wide sides of the rectangular plate, arranged along the width direction of the main support plate 300. Corner support plates 600 are provided between the ends of adjacent long-side support plates 400 and wide-side support plates 500. The connection structures between the two long-side support plates 400 and the main support plate 300, and between the two wide-side support plates 500 and the main support plate 300, are the same; this embodiment uses one of them as an example.

[0050] A first frame 310 is fixed to the bottom of the main support plate 300. Specifically, the first frame 310 includes two upper connecting outer tubes 320, multiple second support tubes 330, and two lower connecting outer tubes 340. The two upper connecting outer tubes 320 are arranged parallel to the long side of the main support plate 300, and are connected to each other by the multiple second support tubes 330 to form an integral structure. The top surfaces of the upper connecting outer tubes 320 and the second support tubes 330 are coplanar, and are fixedly connected to the bottom surface of the main support plate 300 to serve as a reinforcing structure for the main support plate 300. The two lower connecting outer tubes 340 are arranged parallel to the wide side of the main support plate 300 and are fixed to the bottom of the two upper connecting outer tubes 320. The first frame 310 is fixed at the bottom center of the main support plate 300, which gives the bottom of the main support plate 300 a certain space on the four sides of the first frame 310, allowing the long side support plate 400, the wide side support plate 500 and the corner support plate 600 to move under the main support plate 300. At this time, the support plate only supports the product through the main support plate 300. This state is the minimum size for the rack to support the product, and it can also avoid the connecting pipes and reinforcing frames at the bottom of the long side, wide side and corner support plates.

[0051] The long-side support plate 400, wide-side support plate 500, and corner support plate 600 are all located at the bottom of the main support plate 300 and are staggered in the height direction. This avoids structural interference between the support plates. The three support plates are fitted with gaps between adjacent support plates, allowing for smooth relative movement between adjacent support plates. Furthermore, when all support plates are in the open state and subjected to product pressure, adjacent support plates can be staggered for support, improving structural reliability.

[0052] The clearance between the clearance fits should be the minimum clearance that allows for smooth movement between two adjacent load-bearing plates; the specific distance can be designed according to actual needs.

[0053] A long-side support plate 400 is disposed below the main support plate 300. The length of the long-side support plate 400 is adapted to, and preferably equal to, the length of the long side of the main support plate 300. The long-side support plate 400 is arranged along the length direction of the main support plate 300, and its two ends are aligned with the two ends of the main support plate 300 along its length direction. A second frame 410 is fixed below the long-side support plate 400. Specifically, the second frame 410 includes a first support tube 420, a third connecting outer tube 430, and two second connecting outer tubes 440. The first support tube 420 is arranged along the length of the long side support plate 400 and fixed at the bottom center of the long side support plate 400. The two ends of the first support tube 420 are spaced apart from the two ends of the long side support plate 400, providing sufficient space to allow the corner support plate 600 to move below the main support plate 300, while preventing interference between the reinforcing ribs 630 of the corner support plate 600 and the first support tube 420. The length of the third connecting outer tube 430 is adapted to the length of the long side of the long side support plate 400; in this embodiment, it is slightly smaller than the length of the long side of the long side support plate 400. The third connecting outer tube 430 is welded and fixed to the long side of the long side support plate 400 near the vertical side wall of the main support plate 300. Two second connecting outer tubes 440 are fixed to the bottom of the first support tube 420 and the third connecting outer tube 430, thereby forming the aforementioned second frame 410.

[0054] All connecting pipes in this embodiment are square pipes. The vertical sidewalls of the third connecting outer pipe 430 mentioned above refer to the two sidewalls of the square pipe in a vertical state after assembly. Similarly, the two sidewalls in a horizontal state are the horizontal sidewalls.

[0055] Two second connecting outer tubes 440 are provided in a one-to-one correspondence with two lower connecting outer tubes 340. Each second connecting outer tube 440 contains a second connecting inner tube 450. One end of the second connecting inner tube 450 is fixed inside the second connecting outer tube 440, and the fixing method can be bolt connection, welding, etc. The other end of the second connecting inner tube 450 is slidably connected inside the lower connecting outer tube 340. When the material rack is at its minimum size, the part of the second connecting inner tube 450 extending out of the second connecting outer tube 440 is completely inserted into the lower connecting outer tube 340. At this time, the long side bearing plate 400 is completely located below the main bearing plate 300. When it is necessary to increase the width of the bearing plate, the long side bearing plate 400 is moved out from the long side of the main bearing plate 300.

[0056] A wide-side support plate 500 is disposed below the main support plate 300. The length of the wide-side support plate 500 is adapted to, and preferably equal to, the length of the wide side of the main support plate 300. The wide-side support plate 500 is arranged along the width direction of the main support plate 300, and its two ends are aligned with the two ends of the main support plate 300 in the width direction. A third frame 510 is fixed below the wide-side support plate 500. Specifically, the third frame 510 includes a fourth connecting outer tube 520 and two first connecting outer tubes 530 that are arranged one-to-one with the upper connecting outer tube 320. The two first connecting outer tubes 530 are vertically fixed between the two ends of the fourth connecting outer tube 520. The middle position of the fourth connecting outer tube 520 and the two first connecting outer tubes 530 form a first connecting area 540, and the end position of the fourth connecting outer tube 520 and the corresponding first connecting outer tube 530 form a second connecting area 550. The wide-side support plate 500 includes a first support plate 560 and a second support plate 570. The first support plate 560 is disposed in the first connecting region 540, and its three sides are welded and fixed to the fourth connecting outer tube 520 and two first connecting outer tubes 530 respectively on the vertical sidewalls corresponding to the first connecting region 540. The two second support plates 570 are respectively fixed in the two second connecting regions 550. Taking one of them as an example, the two adjacent sides of the second support plate 570 are welded and fixed to the fourth connecting outer tube 520 and a corresponding first connecting outer tube 530 on the vertical sidewalls corresponding to the second connecting region 550.

[0057] Each first connecting outer tube 530 is provided with a first connecting inner tube 580. One end of the first connecting inner tube 580 is fixed inside the first connecting outer tube 530, and the other end of the first connecting inner tube 580 is slidably connected inside the upper connecting outer tube 320. When the material rack is at its minimum size, the portion of the first connecting inner tube 580 extending out of the first connecting outer tube 530 is completely inserted into the upper connecting outer tube 320. At this time, the wide-side support plate 500 is completely located below the main support plate 300. When it is necessary to increase the length of the support plate, the wide-side support plate 500 is moved out from the wide side of the main support plate 300.

[0058] In this configuration, only the second support pipe 330 exists between the two upper connecting outer pipes 320 in the moving direction of the first support plate 560. Since the second support pipe 330 is located between the two upper connecting outer pipes 320, it will not interfere with the first support plate 560. Therefore, the first support plate 560 can be set to the same height as the long-side support plate 400. Thus, when all support plates are moved and opened, most of the extended support plates (long-side support plate 400, wide-side support plate 500, and corner support plate 600) (long-side support plate 400 and wide-side support plate 500) are at the same height, ensuring the continuity of the bearing surface and improving the stability and reliability when bearing products. Since the two second support plates 570 are located on both sides of the width direction, this position would interfere with the two long-side support plates 400. Therefore, the second support plates 570 are located below the long-side support plates 400 to avoid interference.

[0059] In order to improve the structural performance of the first bearing plate 560, a third support pipe 590 is welded between the two first connecting outer pipes 530 to support the first bearing plate 560.

[0060] The corner support plate 600 is a rectangular plate, with a third connecting inner tube 610 and a fourth connecting inner tube 620 welded and fixed to its adjacent sides, respectively. The third connecting inner tube 610 and the fourth connecting inner tube 620 are vertically arranged and their ends are welded and fixed. The third connecting inner tube 610 is arranged in the same direction as the third connecting outer tube 430, and the fourth connecting inner tube 620 is arranged in the same direction as the fourth connecting outer tube 520. The free end of the third connecting inner tube 610 is slidably connected to the third connecting outer tube 430, and the free end of the fourth connecting inner tube 620 is slidably connected to the fourth connecting outer tube 520. Through the slidable connection between the third connecting inner tube 610 and the fourth connecting inner tube 620 and the third connecting outer tube 430 and the fourth connecting outer tube 520 of the second frame 410 and the third frame 510, the corner support plate 600 can move synchronously with the second frame 410 and the third frame 510, so that the corner position between the long side support plate 400 and the wide side support plate 500 has a supporting structure to achieve effective support.

[0061] In this embodiment, a side protection component 100 is provided on each of the four sides of the support plate, specifically on the two long sides and the two short sides. The side protection components 100 on the long sides are fixed to the third connecting outer tube 430, and the side protection components 100 on the short sides are fixed to the fourth connecting outer tube 520. The connection structure between the side protection component 100 and the third connecting outer tube 430 and the fourth connecting outer tube 520 is the same. The installation of the side protection component 100 will be described below using one of the third connecting outer tubes 430 and the side protection component 100 as an example.

[0062] According to the above description, a third connecting inner tube 610 is inserted into both ends of the third connecting outer tube 430. Each end of the third connecting outer tube 430 is provided with a mounting post 460, and the two mounting posts 460 are positioned opposite to the two third connecting inner tubes 610 inserted into the third connecting outer tube 430. Each mounting post 460 is U-shaped with the U-shaped opening facing inwards. The top of the mounting post 460 is provided with a slot 461, and both side walls of the mounting post 460 are provided with vertical first strip holes 462, which are positioned opposite each other.

[0063] The side protection assembly 100 includes a protective frame 110 and protective components 130 fixed to the protective frame 110. The protective frame 110 has two vertically downward fifth connecting inner tubes 120, which are correspondingly arranged with two mounting columns 460. Each fifth connecting inner tube 120 is provided with a locking block 121 and a rotating shaft. The locking block 121 engages with a locking groove 461, and the rotating shaft is rotatably inserted into a first strip hole 462 and can slide along the first strip hole 462. Through the engagement of the rotating shaft with the first strip hole 462 and the engagement of the locking block 121 with the locking groove 461, in use, the locking block 121 is locked in the locking groove 461, the rotating shaft is located at the bottom of the first strip hole 462, and the bottom of the fifth connecting inner tube 120 is placed on the third connecting outer tube 430, so that the side protection assembly 100 can be in an upright state, achieving lateral protection. When not in use, the pivot of the side protection assembly 100 moves upward along the first strip hole 462, causing the locking block 121 to move upward and disengage from the slot 461. Then, it rotates to fall onto the support plate, so that the side protection assembly 100 is in a folded state, reducing space occupation and lowering the cost of its return transport.

[0064] Furthermore, the two vertical sidewalls of the third connecting inner tube 610 are each provided with a first through hole 611 and a second strip hole 612 on the same horizontal plane, and the two first through holes 611 and the two second strip holes 612 are arranged opposite to each other. The two vertical sidewalls of the third connecting outer tube 430 are each provided with a second through hole 431; the third connecting inner tube 610 is connected to the third connecting outer tube 430 by a first bolt. When the first bolt passes through the second through hole 431 and the first through hole 611, the third connecting inner tube 610 is fixed inside the third connecting outer tube 430, and the corner support plate 600 is completely located below the corresponding support plate. When the first bolt passes through the second through hole 431 and the second strip hole 612, the third connecting inner tube 610 can slide out of the third connecting outer tube 430, and the corresponding corner support plate 600 can extend out of the corresponding support plate, thereby adjusting the size of the support plate.

[0065] The fifth connecting inner tube 120 has two opposite sidewalls with third through holes 123. The two third through holes 123 are coaxially arranged and opposite to the first strip hole 462. The fifth connecting tube has a support leg 124, which includes a hollow shaft 1241 and a limiting block 1242. The hollow shaft 1241 is coaxially arranged with the third through hole 123 and welded to the inner sidewall of the fifth connecting inner tube 120. One end of the limiting block 1242 is welded to the hollow shaft 1241. The third connecting outer tube 430 has a fourth through hole at a position opposite to the limiting block 1242. The other end of the limiting block 1242 passes through the fourth through hole downward through the third connecting outer tube 430 and presses against the top surface of the third connecting inner tube 610 located inside the third connecting outer tube 430, so that the third connecting inner tube 610 and the corner bearing plate 600 fixed on the third connecting inner tube 610 are in a horizontal state. The limiting block 1242 engages with the inner wall of the fourth through hole. The aforementioned rotating shaft is a second bolt, which passes through the mounting column 460, the fifth connecting inner tube 120, and the hollow shaft 1241, and is locked with a nut. The head of the second bolt and the nut respectively abut against the two side walls of the mounting column 460. The fit between the support leg 124 and the third connecting outer tube 430 and the third connecting inner tube 610 has the following advantages:

[0066] (1) In practice, there is an assembly gap between the fifth connecting inner tube 120 and the inner wall of the mounting column 460. The fifth connecting inner tube 120 has a movement capability in its rotation axis direction, which makes the overall stability of the entire side protection assembly 100 relatively poor. The aforementioned limiting block 1242 is matched with the fourth through hole of the third connecting outer tube 430, which can limit the movement capability of the fifth connecting inner tube 120 in its rotation axis direction. During transportation, the side protection assembly 100 cannot move along the rotation axis, thereby improving its structural stability, reducing movement and shaking, and increasing its service life.

[0067] (2) There is an assembly gap between the third connecting inner tube 610 and the third connecting outer tube 430. When the corner support plate 600 is fully extended, it can swing up and down around the first bolt as the pivot, resulting in poor structural stability and reliability. During handling, especially when the rack is used as a primary packaging, automotive parts placed on the corner support plate 600 are prone to collision and damage due to the up-and-down swing of the corner support plate 600. By using the pressing action between the bottom of the limiting block 1242 and the third connecting inner tube 610, when automotive parts are placed on the corner support plate 600, the force exerted by the automotive parts on the corner support plate 600 (third connecting inner tube 610) and the force exerted by the side protection assembly 100 on the third connecting inner tube 610 through the limiting block 1242 can be balanced. This ensures that the third connecting inner tube 610 (corner support plate 600) remains in a stable horizontal state under the action of the limiting block 1242, improving structural stability and reliability, preventing damage to automotive parts due to shaking, and preventing tilting or lateral displacement of automotive parts when placed on the inclined corner support plate 600.

[0068] Even if the force applied to the corner support plate 600 by the automotive parts is too great, the head of the second bolt and the corresponding nut abut against the two side walls of the mounting column 460, which restricts the vertical movement of the hollow shaft 1241, that is, restricts the vertical movement of the fifth connecting inner tube 120. Thus, the fifth connecting inner tube 120 will not be lifted, ensuring that the third connecting inner tube 610 remains in a horizontal state.

[0069] The distance between the rotating shaft and the bottom of the limiting block 1242 is greater than the distance between the rotating shaft and the bottom of the U-shaped groove of the mounting column 460. Therefore, during the process of the side protection assembly 100 rotating to the folded state, the bottom of the limiting block 1242 will interfere with the bottom of the U-shaped groove. Therefore, the mounting column 460 is provided with a clearance hole 463, and the end of the limiting block 1242 away from the hollow shaft 1241 can extend out of the mounting column 460 through the clearance hole 463, thereby enabling the folding of the side protection assembly 100.

[0070] In other alternative embodiments, the mounting column 460 is welded to the corresponding connecting outer tube. The bottom of the mounting column 460 is provided with a limiting part 464, which passes downward through the third connecting outer tube 430 and presses against the third connecting inner tube 610. The limiting part 464 keeps the third connecting outer tube 430 horizontal. Compared to the above-mentioned method of limiting the third connecting inner tube 610 using the limiting block 1242 of the fifth connecting inner tube 120, this connection method, while providing stable pressure against the third connecting inner tube 610, can hinder the installation of the third connecting inner tube 610 by the limiting part 464 within the third connecting outer tube 430, thus affecting assembly efficiency.

[0071] In this embodiment, the bottom of the corner support plate 600 is provided with a reinforcing rib assembly 630, which consists of multiple reinforcing ribs. One end of some of the reinforcing ribs is fixedly connected to the third connecting inner tube 610, and one end of another portion of the reinforcing ribs is fixed to the fourth connecting inner tube 620. The other ends of all the reinforcing ribs extend towards the suspended corner of the corner support plate. The reinforcing rib assembly 630 can support the suspended end of the corner support plate 600, ensuring the load-bearing effect of the corner support plate 600. Furthermore, since the end of the long side support plate 400 is not supported by the second support tube 330, and the wide side support plate 500 also has a suspended position that is not supported by the first connecting outer tube 530, these positions cannot achieve effective support. After reinforcing the corner support plate 600 with the reinforcing rib group 630, the part of the corner support plate 600 located below the long side support plate 400 and the wide side support plate 500 can further support the end of the long side support plate 400 and the suspended position of the wide side support plate 500, so that all support plates have a better load-bearing effect and improve the performance of the material rack.

[0072] In this embodiment, the bottom ends of both ends of the third connecting outer tube 430 and the fourth connecting outer tube 520 are provided with the aforementioned support feet 200.

[0073] In this embodiment, the protective component 130 is a rigid protective plate, which is fixed to the protective frame 110 and provides impact resistance and dust protection. The length of the protective frame 110 on the third connecting outer tube 430 and the fourth connecting outer tube 520 is adapted to the length of the corresponding connecting outer tube, preferably slightly smaller than the length of the connecting outer tube, so that telescopic rods 140 can be installed on the top of both sides of the protective frame 110. A slidable dust curtain 160, preferably a PVC curtain, is provided on the telescopic rod 140. When the long side support plate 400, wide side support plate 500, and corner support plate 600 are moved out to increase the size of the support plate, the telescopic rod 140 of the corresponding side protective component 100 extends outward, and the dust curtain moves and unfolds, thereby covering the gap of the increased size part and achieving the dust protection requirement.

[0074] In this embodiment, each side protection component 100 further includes an inverted U-shaped frame 150. The inverted U-shaped frame 150 includes a horizontally arranged transverse connecting rod 151 and a sixth connecting inner tube 152 connected to both ends of the transverse connecting rod 151 and arranged vertically downward. The two sixth connecting inner tubes 152 are respectively arranged in a one-to-one correspondence with the two fifth connecting inner tubes 120 of the protective frame 110. Each sixth connecting inner tube 152 is slidably connected to the corresponding fifth connecting inner tube 120. The height of the inverted U-shaped frame 150 is adjusted according to the height of the automotive parts on the support plate to ensure that the automotive parts can be protected in the height direction. The inverted U-shaped frame 150 is also provided with the aforementioned protective component 130, telescopic rod 140 and dust curtain. In order to avoid interference between the protective component 130 of the inverted U-shaped frame 150 and the protective component 130 of the protective frame 110, the protective component 130 of the inverted U-shaped frame 150 is located outside the protective component 130 of the protective frame 110 to avoid misalignment.

[0075] In this embodiment, the sliding connection structures between the first connecting inner tube 580 and the upper connecting outer tube 320, between the second connecting inner tube 450 and the lower connecting outer tube 340, and between the sixth connecting inner tube 152 and the fifth connecting inner tube 120 are all the same. In each case, multiple sets of fifth through holes 451 are spaced apart along the length of the sliding tubes (first connecting inner tube 580, second connecting inner tube 450, and sixth connecting inner tube 152), and a set of sixth through holes 341 is provided on the fixed tubes (upper connecting outer tube 320, lower connecting outer tube, and fifth connecting inner tube 120). The sliding tubes are slidably inserted into the fixed tubes and then secured with bolts. When length adjustment is required, taking the second connecting inner tube 450 and the lower connecting outer tube as an example, the second connecting inner tube is extended / moved into the lower connecting tube. When it is moved to a position near the specified location, the fifth through hole 451 and the sixth through hole 341 near that location are aligned, and then the bolts are tightened.

[0076] The above description is only a preferred embodiment of the present utility model, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements 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 material handling rack for automotive parts, comprising a support plate and a plurality of side protection assemblies, wherein the bottom of the support plate is provided with support feet, and each side of the support plate is provided with one of the side protection assemblies, characterized in that: The bearing plate includes a main bearing plate, a long-side bearing plate, a wide-side bearing plate, and corner bearing plates; The main support plate is a rectangular plate, and a first frame is fixed to the bottom of the main support plate. The first frame has an upper connecting outer tube and a lower connecting outer tube. One of the upper connecting outer tube and the lower connecting outer tube is set along the long side of the main support plate and fixed to the bottom of the main support plate, and the other is set along the wide side of the main support plate and fixed to the bottom of the upper connecting outer tube. The long-side bearing plate, wide-side bearing plate, and corner bearing plate are all located below the main bearing plate and are staggered in height and fitted with gaps. The lengths of the long-side support plate and the wide-side support plate are adapted to the lengths of the long and wide sides of the main support plate, respectively. A second frame is fixed below the long-side support plate, and a third frame is fixed below the wide-side support plate. One of the second and third frames has a first connecting outer tube, and the other has a second connecting outer tube. A first connecting inner tube is provided inside the first connecting outer tube, one end of which is fixed inside the first connecting outer tube, and the other end of which is slidably connected to the upper connecting outer tube. A second connecting inner tube is provided inside the second connecting outer tube, one end of which is fixed inside the second connecting outer tube, and the other end of which is slidably connected to the lower connecting outer tube. The second frame also has a third connecting outer tube, which is located on the long side of the long side bearing plate away from the main bearing plate; the third frame also has a fourth connecting outer tube, which is located on the long side of the wide side bearing plate away from the main bearing plate; a third connecting inner tube and a fourth connecting inner tube are fixed to two adjacent sides of the corner bearing plate, respectively, and the third connecting inner tube and the fourth connecting inner tube are arranged in the same direction as the third connecting outer tube and the fourth connecting outer tube, respectively. The free end of the third connecting inner tube is slidably connected to the third connecting outer tube, and the free end of the fourth connecting inner tube is slidably connected to the fourth connecting outer tube.

2. The material handling rack for automotive parts according to claim 1, characterized in that: The main support plate is provided with long side support plates on both long sides and wide side support plates on both wide sides, and corner support plates are provided between the long side support plates and the wide side support plates; Both ends of the third and fourth connecting outer tubes are provided with mounting columns. The mounting columns are arranged opposite to the corresponding connecting inner tubes. The mounting columns are U-shaped on the side. The top of the mounting column is provided with a slot, and the side wall of the mounting column is provided with a first strip hole. The side protection assembly includes a protective frame and a protective component fixed to the protective frame. The protective frame has a fifth connecting inner tube, which is provided with a locking block and a rotating shaft. The locking block is locked in the locking slot, and the rotating shaft is rotatably inserted into a first strip hole and can slide along the first strip hole.

3. The material handling rack for automotive parts according to claim 2, characterized in that: The two vertical sidewalls of the third connecting inner tube are each provided with a first through hole and a second strip hole on the same horizontal plane, and the two first through holes and the two second strip holes are arranged opposite to each other; the two vertical sidewalls of the third connecting outer tube are each provided with a second through hole; the third connecting inner tube is connected to the third connecting outer tube by a first bolt. When the first bolt passes through the second through hole and the first through hole, the third connecting inner tube is fixed inside the third connecting outer tube, and the corner bearing plate is completely located below the corresponding bearing plate. When the first bolt passes through the second through hole and the second strip hole, the third connecting inner tube can slide out of the third connecting outer tube, and the corner bearing plate can extend out of the corresponding bearing plate.

4. The material handling rack for automotive parts according to claim 3, characterized in that: The two side walls of the mounting column are provided with the first strip-shaped hole, and the two first strip-shaped holes are arranged opposite to each other; the two opposite side walls of the fifth connecting inner tube are provided with the third through hole, and the two third through holes are arranged coaxially and opposite to the first strip-shaped hole; the fifth connecting inner tube is provided with a support foot, the support foot includes a hollow shaft and a limiting block, the hollow shaft is arranged coaxially with the third through hole, one end of the limiting block is fixed to the hollow shaft, and the other end of the limiting block passes downward through the corresponding connecting outer tube and abuts against the corresponding connecting inner tube; The rotating shaft is a second bolt, which passes through the mounting column, the fifth connecting inner tube, and the hollow shaft and is locked by a nut; the mounting column is provided with a clearance hole, and the end of the limiting block away from the hollow shaft can extend out of the mounting column through the clearance hole.

5. The material handling rack for automotive parts according to claim 3, characterized in that: The mounting column is welded to the corresponding connecting outer tube. The bottom of the mounting column is provided with a limiting part, which passes downward through the corresponding connecting outer tube and presses against the corresponding connecting inner tube.

6. The material handling rack for automotive parts according to claim 1, characterized in that: The long-side bearing plate is located below the main bearing plate, and there are two upper connecting outer tubes and two lower connecting outer tubes; The second frame includes a first support tube, the third connecting outer tube, and two second connecting outer tubes; the first support tube is arranged along the length of the long side bearing plate and fixed to the bottom of the long side bearing plate, with the two ends of the first support tube spaced apart from the two ends of the long side bearing plate; the vertical sidewall of the third connecting outer tube near the main bearing plate is welded and fixed to the long side of the long side bearing plate; the two second connecting outer tubes are fixed to the bottom of the first support tube and the third connecting outer tube.

7. The material handling rack for automotive parts according to claim 6, characterized in that: The third frame includes the fourth connecting outer tube and two first connecting outer tubes. The two first connecting outer tubes are vertically fixed between the two ends of the fourth connecting outer tube. The middle position of the fourth connecting outer tube and the two first connecting outer tubes form a first connecting area. The end position of the fourth connecting outer tube and the corresponding first connecting outer tube form a second connecting area. The wide-side support plate includes a first support plate and two second support plates. The first support plate is disposed in the first connection area and welded and fixed to the vertical side wall of the connecting outer pipe corresponding to the area. The second support plate is disposed in the second connection area and welded and fixed to the vertical side wall of the connecting outer pipe corresponding to the area. The second support plate is located below the long-side support plate.

8. The material handling rack for automotive parts according to claim 7, characterized in that: The third and fourth connecting inner tubes are vertically fixedly connected. The two adjacent sides of the corner bearing plate are welded to the third and fourth connecting inner tubes and located below the corresponding second bearing plate. The bottom of the corner bearing plate is provided with reinforcing ribs.

9. The material handling rack for automotive parts according to claim 1, characterized in that: The support feet are provided at the bottom of both ends of the third and fourth connecting outer tubes.

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