High-stability plastic tray placing rack

Abstract

The utility model discloses a plastic tray placing rack with high stability, and relates to the field of transportation and storage of plastic trays, the plastic tray placing rack comprises a bottom plate, each side edge of the bottom plate is connected with at least one hard restraining rod, the restraining rods are vertically assembled, and the distance between every two adjacent restraining rods is smaller than the side length of the bottom plate; all the restraining rods are connected and locked to the same pressing piece used for pressing the plastic tray. A plurality of countersunk threaded holes are evenly formed in the lower end face of the bottom plate, and threaded rods are connected into the countersunk threaded holes in a threaded mode. And the bottom of the screw rod is rotationally connected with a cushion block. According to the plastic tray stacking device, on one hand, the plastic trays can be stacked perpendicular to the horizontal plane, on the other hand, the stacked plastic trays can be restrained into a whole, the plastic trays are effectively prevented from sliding down and being stacked and toppled over, and the stacking stability and safety of the plastic trays are improved.

Description

Technical Field

[0001] The utility model relates to the field of transportation and storage of plastic pallets, in particular to a plastic pallet placement rack with high stability. Background Art

[0002] Plastic pallets are also plastic support plates and plastic table tops; they are the main equipment for warehouse storage and cargo transfer. In the plastic pallet production factory, there are a large number of plastic pallets and they need to be transported to the customer's location.

[0003] When storing plastic pallets, they are stacked together without fixed racks or other devices to restrain them. Usually, ropes are used to tie the stacked plastic pallets together. In this way, because the ropes are soft, the plastic pallets are easy to slip, or the stacked plastic pallets are misaligned with each other, resulting in a shift in the center of gravity, which in turn causes the stacked plastic pallets to tip over. When transporting plastic pallets, in order to ensure transportation efficiency, it is necessary to carry as many plastic pallets as possible under the premise of load and height limits, so plastic pallets are also stacked in the cargo hold of the truck, and the stacking height is usually higher than the cargo hold; the part above the cargo hold is also restrained by ropes, which may also cause the plastic pallets to slip or the stack to tip over, and it is even more likely to happen during the bumpy journey of transportation. Whether it is the slipping of plastic pallets or the tipping of stacks, it may pose a danger to factory personnel, transportation personnel, etc.

[0004] On the other hand, when a support plate is used to store plastic pallets or the bottom plastic pallet is used to support the stacked plastic pallets, the ground where the support plate (bottom plastic pallet) is placed may have a slope, or even worse, the ground may be an uneven surface; the support plate (bottom plastic pallet) is placed on the ground, and the sloped ground or the uneven ground may easily cause the support plate (bottom plastic pallet) to tilt or become unstable (i.e., it may shake and bump), and the plastic pallets are stacked on the support plate (bottom plastic pallet). As the height of the plastic pallets increases, the stacked plastic pallets may easily fall over, resulting in failure of the plastic pallet stacking.

[0005] In summary, the current device or method for stacking plastic pallets has low stability, and a support frame is needed to solve this problem. Utility Model Content

[0006] The purpose of the utility model is to provide a high-stability plastic pallet placement rack to address the above-mentioned problems. On the one hand, it can enable the plastic pallets to be stacked perpendicular to the horizontal plane, and on the other hand, it can constrain the stacked plastic pallets into a whole, effectively preventing the plastic pallets from sliding and stacking and tipping over, thereby improving the stability and safety of the plastic pallet stacking.

[0007] The technical solution adopted by the utility model is as follows: a high-stability plastic pallet placement rack, including a base plate, each side of the base plate is connected to at least one hard constraint rod, the constraint rods are vertically assembled, and the spacing between adjacent constraint rods is smaller than the side length of the base plate; all constraint rods are connected and locked to the same clamping member for clamping the plastic pallet; a plurality of countersunk threaded holes are evenly opened on the lower end surface of the base plate, and screws are threadedly connected to the inner threads of the countersunk threaded holes; a pad is rotatably connected to the bottom of the screw.

[0008] Furthermore, the clamping member is a star-shaped frame, which has clamping strips with the same number as the total number of constraint rods, and the end of each clamping strip is provided with a through hole for the constraint rod to pass through; or the clamping member is a plate, which has through holes with the same number as the total number of constraint rods and matching positions; after assembly, the constraint rods pass through the through holes.

[0009] Furthermore, a threaded section is provided at the top of the restraining rod, a clamping nut is connected to the threaded section, the assembly position of the clamping piece is located between the clamping nut and the base plate, and the aperture of the through hole is smaller than the outer diameter of the clamping nut.

[0010] Furthermore, the restraining rod is a multi-section telescopic rod having a multi-section tube body, and adjacent tube bodies are slidably connected; and locking pieces for locking the telescopic length are provided between adjacent tube bodies in the multi-section telescopic rod.

[0011] Furthermore, there are an upper section of the tube and a lower section of the tube in adjacent tube bodies, and the upper section of the tube is sleeved on the lower section of the tube; the locking piece is a locking screw, and a threaded hole is opened on the upper section of the tube, and the threaded hole passes through the tube wall. The locking screw is threadedly connected to the threaded hole and abuts against the outer wall of the lower section of the tube.

[0012] Furthermore, all constraint rods are fixedly connected to the base plate; or all constraint rods are hinged to the base plate; or some constraint rods are hinged to the base plate, called hinged rods, and another part of constraint rods are fixedly connected to the base plate, called fixed rods, and the positions of all hinged rods and all fixed rods are symmetrical about the same geometric diagonal position on the base plate.

[0013] Furthermore, a rotating shaft is provided on the bottom plate at a position hinged to the restraining rod, and the restraining rod is rotatably connected to the rotating shaft.

[0014] Furthermore, a screw nut is coaxially fixed on the screw rod.

[0015] Furthermore, the number of the countersunk threaded holes is the same as the number of the corners of the bottom edge, and is distributed at the corners of the bottom plate.

[0016] Furthermore, a universal wheel with a brake is installed at the bottom of the cushion block.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] 1. The utility model arranges hard restraint rods around the bottom plate, and all the restraint rods restrain the plastic pallets stacked on the bottom plate by surrounding them, and the spacing between adjacent restraint rods is smaller than the side length of the bottom plate, and the geometric dimensions and shape of the plastic pallets match those of the bottom plate, thereby effectively preventing the plastic pallets from sliding and stacking and tipping over, and improving the stability and safety of the plastic pallet stacking;

[0019] 2. The utility model provides a pressing piece to press the plastic pallet, so that the stacked plastic pallets are constrained in the vertical direction, that is, the pressing piece cooperates with all the restraining rods to further constrain all the plastic pallets in the stack into a whole, effectively preventing the center of gravity from shifting and the plastic pallets from jumping up and down during transportation, thereby improving the stability and safety of the plastic pallet stacking;

[0020] 3. The utility model can adjust the threaded connection position of the screw and the countersunk threaded hole by rotating the screw, thereby adjusting the length of the screw extending out of the countersunk threaded hole, and further adjusting the height of the position, thereby compensating for the height difference of the sloped or uneven ground, ensuring that the surface of the bottom plate is in a horizontal state; the plastic pallets can be stacked perpendicular to the horizontal plane, thereby improving the stability and safety of the plastic pallets stacking, and effectively preventing the plastic pallets from slipping and the stacked pallets from tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0024] Markings in the figure: 1-base plate; 11-rotating shaft; 12-countersunk threaded hole; 2-restraint rod; 21-tube body; 22-threaded section; 23-locking screw; 3-pressing piece; 31-through hole; 4-pressing nut; 5-universal wheel; 6-screw; 61-twist nut; 7-spacer. DETAILED DESCRIPTION

[0025] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0026] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0027] Example 1

[0028] like Figure 1-Figure 2 As shown, a high-stability plastic pallet placement rack includes a base plate 1, the geometric dimensions and shape of the plastic pallet match those of the base plate 1, for example, the plastic pallet is a polygon, and the base plate 1 is also a polygon with the same number of sides; at least one hard restraint rod 2 is connected to each side of the base plate 1, the restraint rod 2 is vertically assembled, and the spacing between adjacent restraint rods 2 is less than the side length of the base plate 1, all the restraint rods 2 restrain the plastic pallets stacked on the base plate 1 by surrounding them, and the spacing between adjacent restraint rods 2 is less than the side length of the base plate 1, the geometric dimensions and shape of the plastic pallet match those of the base plate 1, thereby effectively preventing the plastic pallet from slipping and stacking and tipping over, and improving the stability and safety of the plastic pallet stacking.

[0029] In this embodiment, all the restraining rods 2 are connected to and locked to the same clamping member 3 for clamping the plastic pallets. The clamping member 3 clamps the plastic pallets so that the stacked plastic pallets are constrained in the vertical direction. That is, the clamping member 3 cooperates with all the restraining rods 2 to further constrain all the plastic pallets in the stack into a whole, effectively preventing the center of gravity from shifting and the plastic pallets from jumping up and down during transportation, thereby improving the stability and safety of the plastic pallet stacking.

[0030] In this embodiment, a plurality of countersunk threaded holes 12 are evenly formed on the lower end surface of the base plate 1, and a screw 6 is connected to the inner thread of the countersunk threaded hole 12; a pad 7 is rotatably connected to the bottom of the screw 6; when the placement rack has to be used on a sloped or uneven ground, part of the screw 6 is rotated to adjust the threaded connection position of the screw 6 and the countersunk threaded hole 12, thereby adjusting the length of the screw 6 extending out of the countersunk threaded hole 12, that is, adjusting the length of the screw 6 extending out of the base plate 1, and further adjusting the height of this position, thereby compensating for the height difference of the sloped or uneven ground, and ensuring that the surface of the base plate 1 is in a horizontal state; the base plate 1 can be in a horizontal state, so that the plastic pallets can be stacked perpendicular to the horizontal plane when stacking, so that the overall center of gravity after stacking is at the center of all plastic pallets, so it has higher stability and effectively prevents the plastic pallets from slipping and stacking and tipping.

[0031] It should be noted that the bottom of the screw rod 6 is rotatably connected to the cushion block 7, and the screw rod 6 can be rotated around its own axis without rotating the cushion block 7, so that the length of the screw rod 6 extending out of the countersunk threaded hole 12 can be adjusted after or during the stacking of plastic pallets, without lifting the bottom plate 1 for adjustment, to ensure that the stacking is in a state perpendicular to the horizontal plane in real time.

[0032] It should be noted that the screw rod 6 can be used for adjustment to achieve stepless adjustment and fine adjustment, thereby ensuring the accuracy of the bottom plate 1 being in a horizontal state.

[0033] It should be noted that the purpose of setting the countersunk threaded hole 12 is not only to provide space for the screw rod 6 without limiting the up and down height adjustment of the screw rod 6, but also to improve the supporting strength and load-bearing capacity of the screw rod 6 supporting the base plate 1 through the threaded connection between the screw rod 6 and the countersunk threaded hole 12.

[0034] Example 2

[0035] Based on Example 1, a specific implementation method that can be implemented is further proposed.

[0036] A feasible implementation method, for the pressing member 3, this embodiment proposes the following several feasible implementation methods.

[0037] In the first embodiment, the clamping member 3 is a star-shaped frame having clamping strips having the same number as the total number of the restraining rods 2. The end of each clamping strip is provided with a through hole 31 for the restraining rod 2 to pass through. After the stacking of the plastic pallets is completed, the star-shaped frame is put on all the restraining rods 2, that is, the top of the restraining rod 2 passes through the through hole 31, and the star-shaped frame is pressed against the top of the topmost plastic pallet, thereby achieving the stacking of the plastic pallets.

[0038] In the second embodiment, the clamping member 3 is a plate member having through holes 31 which are the same in number and matched in position as the total number of the restraining rods 2; after assembly, the restraining rods 2 pass through the through holes 31; the clamping principle is the same as that of the star frame described in the first embodiment, and no further detailed description is given here.

[0039] It should be noted that the clamping member 3 is preferably a star-shaped frame, which can ensure that the plastic pallet is clamped and restricted while having a larger space gap. The star-shaped frame is lighter than the plate, which is convenient for operators to install and disassemble.

[0040] On the basis of the first and second embodiments, a feasible embodiment is further proposed, in which a threaded section 22 is provided on the top of the constraint rod 2, and a clamping nut 4 is connected to the threaded section 22. The assembly position of the clamping piece 3 is located between the clamping nut 4 and the base plate 1, and the aperture of the through hole 31 is smaller than the outer diameter of the clamping nut 4. The clamping nut 4 is threadedly connected to the screw rod, and the base plate 1 and the plastic pallets stacked on the floor are cooperated to lock the clamping piece 3, and then the pre-tightening force of the threaded connection between the clamping nut 4 and the threaded section 22 acts on the clamping piece 3, which is converted into a pressure for pre-tightening the clamping piece 3 on the plastic pallet.

[0041] Example 3

[0042] Based on any one of the implementations in Examples 1-2, a specific implementation method that can be implemented is further proposed.

[0043] In order to adapt to the stacking height of various plastic pallets and save the placement space occupied by the placement rack when not in use, the restraint rod 2 is a multi-section telescopic rod with a multi-section tube body 21. Adjacent tube bodies 21 are slidably connected to each other, and the extension and retraction of the multi-section telescopic rod is achieved by sliding the tube body 21, thereby adjusting the overall length of the restraint rod 2 to further adapt to the stacking height of the plastic pallets.

[0044] Furthermore, there are locking pieces between adjacent tubes 21 in the multi-section telescopic rod for locking the telescopic length, so as to lock the length of the restraining rod 2 so that the length of the restraining rod 2 will not change during transportation, thereby ensuring that the plastic pallet will not jump up and down during transportation.

[0045] Specifically, there are an upper section of the tube and a lower section of the tube in the adjacent tube body 21, and the upper section of the tube is sleeved in the lower section of the tube, that is, the lower section of the tube can extend or retract into the upper section of the tube; the locking member is a locking screw 23, and a threaded hole is opened on the upper section of the tube, and the threaded hole passes through the tube wall. The locking screw 23 is threadedly connected to the threaded hole and abuts against the outer wall of the lower section of the tube. The outer wall of the lower section of the tube is tightened by the locking screw 23 so that the outer wall of the lower section of the tube is tightly attached to the inner wall of the upper section of the tube, and then there is a high friction between the two to achieve locking.

[0046] Example 4

[0047] Based on any one of the implementation methods in Examples 1-3, a specific implementation method that can be implemented is further proposed.

[0048] Regarding the connection method between the restraining rod 2 and the base plate 1, the following implementation methods are proposed in this embodiment.

[0049] In the first embodiment, all the restraining rods 2 are fixedly connected to the bottom plate 1 . In this manner, when placing the plastic pallet, it is necessary to place it from the top of the space surrounded by the restraining rods 2 .

[0050] In the second embodiment, all the restraint rods 2 are hinged to the base plate 1, and the restraint rods 2 can rotate around the hinge position. In this way, when placing plastic pallets, the restraint rods 2 rotate to release the space surrounded by all the restraint rods 2, and the plastic pallets can be directly placed on the base plate 1 for stacking; compared with the first embodiment, this method is more convenient for stacking plastic pallets.

[0051] In the third embodiment, some of the constraint rods 2 are hinged to the bottom plate 1, which are called hinged rods, and the other part of the constraint rods 2 are fixedly connected to the bottom plate 1, which are called fixed rods. The positions of all the hinged rods and all the fixed rods are symmetrical about the same geometric diagonal surface on the bottom plate 1. In this way, when placing plastic pallets, the hinged rods can be rotated to release the space surrounded by all the constraint rods 2, and the plastic pallets can be directly placed on the bottom plate 1 for stacking. At the same time, the fixed rods can also be used to position the plastic pallets, that is, when placing the plastic pallets, the side of the plastic pallets rests on the fixed rods to ensure that all plastic pallets are stacked in the correct position. Taking the bottom plate 1 as a rectangle as an example, there are 4 constraint rods 2, of which two adjacent constraint rods 2 are used as hinged rods, and the other two adjacent constraint rods 2 are used as fixed rods. The fixed rods and the hinged rods are symmetrical with respect to the diagonal surface of the rectangle.

[0052] In summary, among the three implementation modes, the third implementation mode is preferred.

[0053] In this embodiment, a rotating shaft 11 is provided at a hinged position of the bottom plate 1 with the restraining rod 2 , and the restraining rod 2 is rotatably connected to the rotating shaft 11 , and the restraining rod 2 rotates in a vertical plane.

[0054] Example 5

[0055] Based on any one of the implementation methods in Examples 1-4, a specific implementation method that can be implemented is further proposed.

[0056] In a feasible implementation manner, a screw nut 61 is coaxially fixed on the screw rod 6, so that an operator can use a tool (such as a wrench) to drive the screw rod 6 to rotate.

[0057] In a feasible implementation manner, a bearing is provided between the screw rod 6 and the cushion block 7 to ensure that the screw rod 6 can rotate stably and effectively.

[0058] A feasible implementation manner is that the number of the countersunk threaded holes 12 is the same as the number of corners of the bottom edge 1, and they are distributed at the corners of the base plate 1, so that each corner of the base plate 1 can be supported and height-adjusted, thereby improving the support stability.

[0059] In a feasible implementation manner, a universal wheel 5 with a brake is installed at the bottom of the cushion block 7 to facilitate the movement of the stacked plastic pallets; the universal wheel 5 with a brake is available on the market and will not be described in detail here.

[0060] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A high-stability plastic pallet rack, characterized by: The invention comprises a base plate (1), each side of which is connected to at least one hard restraint rod (2), the restraint rods (2) being vertically mounted, and the spacing between adjacent restraint rods (2) being smaller than the side length of the base plate (1); all restraint rods (2) being connected to and locked on the same clamping member (3) for clamping the plastic pallet; a plurality of countersunk threaded holes (12) being evenly formed on the lower end surface of the base plate (1), the countersunk threaded holes (12) being internally threadedly connected to screw rods (6); and a cushion block (7) being rotatably connected to the bottom of the screw rod (6).

2. The plastic pallet rack according to claim 1, characterized in that: The clamping member (3) is a star-shaped frame having clamping strips of the same number as the total number of the restraining rods (2), and a through hole (31) for the restraining rod (2) to pass through is arranged at the end of each clamping strip; or the clamping member (3) is a plate having through holes (31) of the same number as the total number of the restraining rods (2) and matching positions; after assembly, the restraining rods (2) pass through the through holes (31).

3. The plastic pallet rack according to claim 2, characterized in that: A threaded section (22) is provided at the top of the restraining rod (2), a clamping nut (4) is connected to the threaded section (22), the assembly position of the clamping member (3) is located between the clamping nut (4) and the base plate (1), and the aperture of the through hole (31) is smaller than the outer diameter of the clamping nut (4).

4. The plastic pallet rack according to claim 1, characterized in that: The restraining rod (2) is a multi-section telescopic rod having a multi-section tube body (21), and adjacent tube bodies (21) are slidably connected to each other; and locking pieces for locking the telescopic length are provided between adjacent tube bodies (21) in the multi-section telescopic rod.

5. The plastic pallet rack according to claim 4, characterized in that: An upper tube section and a lower tube section are present in adjacent tube bodies (21), and the upper tube section is sleeved on the lower tube section; the locking member is a locking screw (23), a threaded hole is provided on the upper tube section, the threaded hole passes through the tube wall, and the locking screw (23) is threadedly connected to the threaded hole and abuts against the outer wall of the lower tube section.

6. The plastic pallet rack according to claim 1, characterized in that: All the restraining rods (2) are fixedly connected to the base plate (1); or all the restraining rods (2) are hinged to the base plate (1); or some of the restraining rods (2) are hinged to the base plate (1), which are called hinged rods, and the other part of the restraining rods (2) are fixedly connected to the base plate (1), which are called fixed rods. The positions of all the hinged rods and the positions of all the fixed rods are symmetrical about the same geometric diagonal surface position on the base plate (1).

7. The plastic pallet rack according to claim 6, characterized in that: A rotating shaft (11) is provided at a position on the bottom plate (1) where it is hinged to the restraining rod (2), and the restraining rod (2) is rotatably connected to the rotating shaft (11).

8. The plastic pallet rack according to any one of claims 1 to 7, characterized in that: A screw nut (61) is coaxially fixed on the screw rod (6).

9. The plastic pallet rack according to any one of claims 1 to 7, characterized in that: The number of the countersunk threaded holes (12) is the same as the number of the corners of the bottom edge, and they are distributed at the corners of the bottom plate (1).

10. The plastic pallet rack according to any one of claims 1 to 7, characterized in that: A universal wheel (5) with a brake is installed at the bottom of the cushion block (7).

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