Primary-secondary tray
By designing a mother-and-child pallet structure and utilizing the staggered arrangement of hydraulic forklifts and support bars, the problem of time-consuming and labor-intensive pallet handling has been solved, achieving efficient pallet transfer.
Patent Information
- Application Number
- CN202520533270.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-25
AI Technical Summary
The existing pallet-turning operation is time-consuming, labor-intensive, and inconvenient.
Design a mother-daughter pallet structure, including a mother pallet and two daughter pallets placed side by side. The daughter pallets are placed under the mother pallet by a hydraulic forklift. The pallet-turning operation is achieved by using the staggered arrangement of support bars and the design of detachable movable rods.
This process saves time and effort in the pallet-turning process and improves transportation efficiency.
Smart Images

Figure CN223791968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pallet technology, specifically a mother-daughter pallet. Background Technology
[0002] After production, cardboard boxes may undergo multiple transport methods (such as road, rail, sea, and air) from the factory to the customer. Each mode of transport may have different loading requirements, often requiring palletizing—the process of transferring goods from one pallet to another. Palletizing helps adjust the stacking of goods to meet the size restrictions and safety standards of specific transport vehicles.
[0003] Most existing palletizing methods require unloading goods from the original pallet and transferring them to a new pallet, which is time-consuming, labor-intensive, and inconvenient. Utility Model Content
[0004] The technical problem this invention aims to solve is that the existing pallet-turning operation is time-consuming, labor-intensive, and inconvenient.
[0005] To solve the above problems, the technical solution of this utility model is: a mother tray, including a mother tray and two daughter trays placed side by side below the mother tray;
[0006] The mother tray includes two support columns, one end of each support column is fixedly connected to a fixed rod, and the other end is detachably connected to a movable rod. The top of the fixed rod is fixedly connected to multiple support bars. A sliding groove is opened on the opposite side of the two support columns, and an auxiliary rod is slidably connected in the sliding groove.
[0007] The sub-tray includes a horizontal plate, with multiple support columns fixed to the bottom and multiple support strips fixed to the top.
[0008] Furthermore, protrusions are fixedly connected to the bottom of both ends of the movable rod, and slots adapted to the fixed rod and the movable rod are opened at both ends of the support column. The two ends of the sliding groove are respectively connected to the two slots.
[0009] Furthermore, positioning holes are provided on the protrusions at both ends of the movable rod, and an insertion hole corresponding to the position of the positioning hole is provided on the inner side of the support column. A positioning pin is inserted into the insertion hole, and the end of the positioning pin extends into the positioning hole.
[0010] Furthermore, both the fixed rod and the movable rod are provided with multiple mounting slots, the size of which is adapted to the size of the support bar, and the two ends of the support bar are respectively located inside the two mounting slots.
[0011] Furthermore, the top surface of the auxiliary rod is in contact with the bottom surface of the support bar, and the height of the bottom surface of the auxiliary rod is equal to the height of the bottom surface of the movable rod.
[0012] Furthermore, the height of the sub-tray is equal to the height of the bottom surface of the movable rod, and the multiple support columns are arranged in a grid pattern.
[0013] Furthermore, the sum of the widths of the sub-pallet, auxiliary rod, and fixing rod is equal to the width of the mother pallet.
[0014] Furthermore, the support bar one on the mother tray and the support bar two on the daughter tray are staggered, and the height of the support bar two is 1.5-2.5 times the height of the support bar one.
[0015] The advantages of this utility model compared with the existing technology are as follows: Before stacking cartons on the mother pallet, the auxiliary rod is slid to the side of the movable rod, the positioning pin is removed and the movable rod is removed, the child pallet can be placed at the bottom of the mother pallet, and the child pallet is lifted by a hydraulic forklift, so that the support bar two lifts the cartons on the mother pallet and then moves outward, so that the cartons on the mother pallet can be unloaded through the child pallet to complete the pallet unloading, which saves time and effort and is convenient and quick. Attached Figure Description
[0016] Figure 1 This is a perspective view of the present invention.
[0017] Figure 2 This is a structural diagram of the mother tray of this utility model.
[0018] Figure 3 This is a disassembled schematic diagram of the mother tray and the movable rod of this utility model.
[0019] Figure 4 This is a structural diagram of the sub-tray of this utility model.
[0020] As shown in the figure: 1. Mother pallet; 101. Support column one; 102. Fixed rod; 103. Movable rod; 104. Support bar one; 105. Auxiliary rod; 106. Protrusion; 107. Positioning pin; 2. Daughter pallet; 201. Horizontal plate; 202. Support column two; 203. Support bar two. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] like Figure 1 As shown, a mother tray includes a mother tray 1 and two daughter trays 2 placed side by side below the mother tray 1.
[0023] like Figure 2 and Figure 3 As shown, the mother tray 1 includes two support columns 101. One end of each support column 101 is fixedly connected to a fixed rod 102, and the other end is detachably connected to a movable rod 103. Multiple support bars 104 are fixedly connected to the top of the fixed rod 102. A sliding groove is provided on the opposite side of the two support columns 101, and an auxiliary rod 105 is slidably connected in the sliding groove. Multiple mounting slots are provided on both the fixed rod 102 and the movable rod 103. The size of the mounting slots is adapted to the size of the support bars 104. The two ends of the support bars 104 are located inside the two mounting slots respectively. The top surface of the auxiliary rod 105 is in contact with the bottom surface of the support bars 104, and the height of the bottom surface of the auxiliary rod 105 is equal to the height of the bottom surface of the movable rod 103.
[0024] Before stacking cartons on the mother pallet 1, slide the auxiliary rod 105 to the side of the movable rod 103. After the movable rod 103 is removed from the mother pallet 1, the auxiliary rod 105 can provide auxiliary support to the end of the support bar 104, thereby improving the stability of the cartons.
[0025] like Figure 4 As shown, protrusions 106 are fixed to the bottom of both ends of the movable rod 103. The two ends of the support column 101 are provided with slots that are compatible with the fixed rod 102 and the movable rod 103. The two ends of the sliding groove are respectively connected to the two slots. Positioning holes are provided on the protrusions 106 at both ends of the movable rod 103. The inner side of the support column 101 is provided with insertion holes corresponding to the positions of the positioning holes. Positioning pins 107 are inserted into the insertion holes, and the ends of the positioning pins 107 extend into the positioning holes.
[0026] After installing both ends of the movable rod 103 into the slots at the ends of the support column 101, the positions of the positioning hole and the insertion hole correspond. Insert the positioning pin 107 into the insertion hole to fix the movable rod 103. After removing the positioning pin 107, the movable rod 103 can be slid outward and removed.
[0027] The sub-pallet 2 includes a horizontal plate 201. Multiple support columns 202 are fixed to the bottom of the horizontal plate 201, and multiple support bars 203 are fixed to the top. The multiple support columns 202 are arranged in a grid pattern. The height of the sub-pallet 2 is equal to the height of the bottom surface of the movable rod 103. The sum of the widths of the sub-pallet 2, the auxiliary rod 105, and the fixed rod 102 is equal to the width of the mother pallet 1. The support bars 104 on the mother pallet 1 and the support bars 203 on the sub-pallet 2 are staggered, and the height of the support bars 203 is twice the height of the support bars 104.
[0028] After removing the movable lever 103, the sub-pallet 2 is pushed under the mother pallet 1 using a hydraulic forklift. Before the sub-pallet 2 enters the bottom of the mother pallet 1, the height of the sub-pallet 2 is adjusted by the hydraulic forklift so that the second support bar 203 on the sub-pallet 2 is located on one side of the auxiliary lever 105, and the top surface of the second support bar 203 is flush with the carton. At this time, as the sub-pallet 2 is pushed in, the sub-pallet 2 can push the auxiliary lever 105 to one side of the fixed lever 102. The sub-pallet 2 is then lifted again by the hydraulic forklift, so that the cross plate 201 is flush with the bottom surface of the first support bar 104. At this time, the second support bar 203 lifts the carton on the mother pallet 1 and moves it outward, so that the carton on the mother pallet 1 can be unloaded through the sub-pallet 2.
[0029] In practical use, before stacking cartons on the mother pallet 1, slide the auxiliary rod 105 to the side of the movable rod 103. When it is necessary to unload the cartons stacked on the mother pallet 1, remove the positioning pin 107 and remove the movable rod 103. At this time, the sub-pallet 2 can be placed at the bottom of the mother pallet 1 by a hydraulic forklift. During the placement process, the sub-pallet 2 pushes the auxiliary rod 105 to the side of the fixed rod 102. The sub-pallet 2 is then lifted again by the hydraulic forklift, so that the support bar 203 lifts the cartons on the mother pallet 1 and moves them outward. Thus, the cartons on the mother pallet 1 can be unloaded by the sub-pallet 2.
[0030] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A mother tray, comprising a mother tray (1) and two daughter trays (2) placed side by side below the mother tray (1), characterized in that: The mother tray (1) includes two support columns (101), one end of the two support columns (101) is fixedly connected to a fixed rod (102), and the other end is detachably connected to a movable rod (103). The top of the fixed rod (102) is fixedly connected to a plurality of support bars (104). A sliding groove is provided on the opposite side of the two support columns (101), and an auxiliary rod (105) is slidably connected in the sliding groove. The sub-tray (2) includes a horizontal plate (201), with multiple support columns (202) fixedly connected to the bottom of the horizontal plate (201) and multiple support bars (203) fixedly connected to the top.
2. A mother-daughter tray according to claim 1, characterized in that: The bottom of both ends of the movable rod (103) is fixed with protrusions (106), and the two ends of the support column (101) are provided with slots that are compatible with the fixed rod (102) and the movable rod (103). The two ends of the sliding groove are respectively connected to the two slots.
3. A mother-daughter tray according to claim 2, characterized in that: Positioning holes are provided on the protrusions (106) at both ends of the movable rod (103), and an insertion hole corresponding to the position of the positioning hole is provided on the inner side of the support column (101). A positioning pin (107) is inserted into the insertion hole, and the end of the positioning pin (107) extends into the positioning hole.
4. A mother-daughter tray according to claim 1, characterized in that: Both the fixed rod (102) and the movable rod (103) are provided with multiple mounting slots. The size of the mounting slots is adapted to the size of the support bar (104). The two ends of the support bar (104) are located inside the two mounting slots respectively.
5. A mother-daughter tray according to claim 1, characterized in that: The top surface of the auxiliary rod (105) is in contact with the bottom surface of the support bar (104), and the height of the bottom surface of the auxiliary rod (105) is equal to the height of the bottom surface of the movable rod (103).
6. A mother-daughter tray according to claim 5, characterized in that: The height of the sub-tray (2) is equal to the height of the bottom surface of the movable rod (103), and the multiple support columns (202) are arranged in a grid pattern.
7. A mother-daughter tray according to claim 6, characterized in that: The sum of the widths of the sub-pallet (2), auxiliary rod (105), and fixing rod (102) is equal to the width of the mother pallet (1).
8. A mother-daughter tray according to claim 1, characterized in that: The support bar 1 (104) on the mother tray (1) and the support bar 2 (203) on the daughter tray (2) are staggered, and the height of the support bar 2 (203) is 1.5-2.5 times the height of the support bar 1 (104).