Tray locking mechanism and tray

By using the arc-shaped positioning block and groove of the tray locking mechanism, combined with the telescopic spring and positioning rod, the problem of food trays slipping during movement is solved, achieving stable support and convenient operation of the tray, reducing the labor intensity of operators and improving efficiency.

CN224225636UActive Publication Date: 2026-05-12HUAYU ELECTRONIC TECH(SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAYU ELECTRONIC TECH(SUZHOU) CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing food trays are prone to slipping during movement, causing food to scatter, and the existing positioning structure increases the labor intensity and reduces efficiency for operators.

Method used

A pallet locking mechanism was designed, which utilizes the cooperation of arc-shaped positioning blocks and arc-shaped grooves, combined with telescopic springs and positioning rods, to achieve convenient positioning and retrieval of pallets. The stable limiting movement of the base slide and pulleys ensures stable support and convenient operation of the pallet on the pallet rack.

Benefits of technology

It effectively prevents pallets from falling, simplifies pallet handling, reduces the labor intensity of operators, and improves efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The tray locking mechanism comprises a base frame with universal idler wheels, a tray frame is fixedly installed on the top of the base frame, a plurality of bottom plates are evenly installed on the tray frame, positioning holes are formed in the positions, on the peripheries of the tops of the bottom plates, of the tray frame, and arc-shaped positioning blocks are movably arranged in the positioning holes. A positioning frame is fixedly installed in the positioning hole of the tray frame, a plurality of telescopic springs are evenly installed on the side, away from the arc-shaped positioning block, of the positioning frame, a positioning plate is fixedly installed at the top ends of the telescopic springs, and a positioning rod is fixedly installed on the side, away from the telescopic springs, of the positioning plate. And an arc-shaped positioning block which moves in the positioning hole is fixedly mounted at the top end of the positioning rod. Relates to the related field of trays, the arc-shaped positioning blocks enter the arc-shaped grooves to complete positioning and supporting, a tray body is effectively prevented from falling off from a tray frame, meanwhile, the tray body can be conveniently taken and placed, positioning and supporting of the tray body can be achieved, and the tray body can also be conveniently taken.
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Description

Technical Field

[0001] This utility model relates to the field of pallet-related technology, and in particular to a pallet locking mechanism and a pallet. Background Technology

[0002] Food trays are containers used to store food and fresh produce. They can be wrapped with plastic wrap, making them simple, easy to use, and convenient. Food trays are typically made of either PP or PE materials.

[0003] Existing food trays mainly use an open top structure, which makes it easy for the food tray to slip accidentally during movement, causing the food to scatter directly on the ground, greatly reducing the safety of using the food tray and hindering its efficient use. If a positioning structure is added around the food tray frame, the operator needs to lock it every time the tray is placed into the tray frame, which greatly increases the workload of the operator. Moreover, the tray needs to be unlocked again when it is removed from the tray frame. The back-and-forth operation greatly increases the labor intensity of the operator. In addition, the process of picking up and removing the tray is time-consuming, laborious and inefficient. In view of this, the present invention provides a tray locking mechanism and a tray. Utility Model Content

[0004] The purpose of this application is to provide a pallet locking mechanism and a pallet to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: a tray locking mechanism and a tray, including a base frame with universal casters, a tray frame fixedly installed on the top of the base frame, a plurality of base plates evenly installed on the tray frame, positioning holes being opened around the top of the base plates on the tray frame, an arc-shaped positioning block being movably disposed in the positioning holes, and a positioning frame being fixedly installed inside the positioning holes on the tray frame;

[0006] The positioning frame has several telescopic springs evenly installed on the side away from the arc-shaped positioning block. A positioning plate is fixedly installed on the top of each telescopic spring. A positioning rod is fixedly installed on the side of the positioning plate away from the telescopic spring. The arc-shaped positioning block, which moves in the positioning hole, is fixedly installed on the top of the positioning rod.

[0007] Preferably, the size of the positioning hole matches the size of the arc-shaped positioning block, and the arc-shaped positioning block extends through and moves outside the positioning hole.

[0008] Preferably, the top of the base plate is provided with a base groove, and a base pulley is slidably connected to the base plate in the base groove.

[0009] This application also discloses a tray body, including the above-mentioned tray locking mechanism, and a tray body, the tray body being movably disposed at the top of the base plate, the bottom of the tray body having movable holes around its perimeter, a fixed rotating shaft being fixedly installed in the movable holes of the tray body, and the base pulley being movably connected to the fixed rotating shaft.

[0010] Preferably, a U-shaped handle is fixedly installed at the center of one end of the tray body away from the tray frame, and an arc-shaped groove matching the size of the arc-shaped positioning block is formed around the tray body, and the arc-shaped positioning block moves within the arc-shaped groove.

[0011] In summary, the technical effects and advantages of this utility model are as follows:

[0012] 1. In this utility model, the arc-shaped positioning block enters the arc-shaped groove to complete the positioning and support, effectively preventing the pallet from falling off the pallet frame, and also facilitating the convenient handling of the pallet. The cooperation between the arc-shaped positioning block and the arc-shaped groove allows the pallet to enter the pallet frame conveniently, which can not only achieve the positioning and support of the pallet, but also make the pallet easy to pick up.

[0013] 2. In this utility model, the tray body and the tray frame achieve stable positioning and alignment movement through the action of the base slide groove and the base pulley, so that the tray body is aligned and limited on the tray frame, achieving a stable support and locking effect. The arc-shaped positioning block is disengaged from the arc-shaped groove, and the arc-shaped positioning block squeezes the positioning rod and the positioning plate. The positioning plate squeezes the telescopic spring, so that the arc-shaped positioning block enters the positioning hole, which facilitates the removal of the drawer body from the drawer frame. The back-and-forth operation is simple and convenient, and the structure is simple and stable. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of the overall structure of a tray locking mechanism and a tray according to an embodiment of this application;

[0016] Figure 2 This is a perspective view of a pallet locking mechanism and the bottom plate structure of a pallet according to an embodiment of this application;

[0017] Figure 3 This is a schematic perspective view of a pallet locking mechanism and a pallet body structure according to an embodiment of this application;

[0018] Figure 4 This is a schematic perspective view of a pallet locking mechanism and a pallet positioning frame structure according to an embodiment of this application.

[0019] In the diagram: 10. Base frame; 20. Tray frame; 21. Base plate; 22. Positioning hole; 23. Base slide groove; 24. Base pulley; 30. Positioning frame; 31. Arc-shaped positioning block; 32. Telescopic spring; 33. Positioning plate; 34. Positioning rod; 40. Tray body; 41. Fixed pivot; 42. Movable hole; 43. U-shaped handle; 44. Arc-shaped groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The tray locking mechanism and tray shown include a base frame 10 with universal casters, a tray frame 20 fixedly installed on the top of the base frame 10, a plurality of base plates 21 evenly installed on the tray frame 20, positioning holes 22 are provided around the top of the tray frame 20 through the base plates 21, an arc-shaped positioning block 31 is movably arranged in the positioning holes 22, and a positioning frame 30 is fixedly installed inside the positioning holes 22 of the tray frame 20.

[0022] The cooperation between the arc-shaped positioning block 31 and the arc-shaped groove 44 allows the tray body 40 to easily enter the tray frame 20, providing both positioning and support for the tray body 40 and making it easy to pick up. The operation is simple and convenient.

[0023] The positioning frame 30 has several telescopic springs 32 evenly installed on the side away from the arc-shaped positioning block 31. The top of the telescopic spring 32 is fixedly installed with a positioning plate 33. The positioning plate 33 is fixedly installed with a positioning rod 34 on the side away from the telescopic spring 32. The top of the positioning rod 34 is fixedly installed with an arc-shaped positioning block 31 that moves in the positioning hole 22. The telescopic spring 32 drives the arc-shaped positioning block 31 into the arc-shaped groove 44 to achieve positioning support.

[0024] See Figure 1 , Figure 2 , Figure 3 and Figure 4The size of the positioning hole 22 matches the size of the arc-shaped positioning block 31, and the arc-shaped positioning block 31 moves through the outside of the positioning hole 22. The top of the base plate 21 is provided with a base groove 23, and the base plate 21 is slidably connected to the base pulley 24 in the base groove 23.

[0025] The pallet body 40 achieves stable positioning and alignment on the base plate 21 through the base slide groove 23 and the base pulley 24, so that the pallet body 40 is aligned and positioned on the pallet frame 20, achieving a stable support and locking effect.

[0026] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This application also discloses a tray body 40, which includes the aforementioned tray locking mechanism and a tray body 40. The tray body 40 is movably disposed at the top of the base plate 21. Movable holes 42 are provided around the bottom of the tray body 40. A fixed rotating shaft 41 is fixedly installed in the movable holes 42 of the tray body 40, and the base pulley 24 is movably connected to the fixed rotating shaft 41. A U-shaped handle 43 is fixedly installed at the center of the end of the tray body 40 away from the tray frame 20, so that the tray body 40 can be easily picked up through the U-shaped handle 43. Arc-shaped grooves 44 that match the size of the arc-shaped positioning blocks 31 are provided around the tray body 40, and the arc-shaped positioning blocks 31 are all movable in the arc-shaped grooves 44.

[0027] The working principle of this utility model is as follows: The tray body 40 is inserted into the top of the base plate 21 through the U-shaped handle 43. The base pulleys 24 around the bottom of the tray body 40 move in the base grooves 23 at the top of the base plate 21, so that the tray body 40 is aligned and enters the tray frame 20. When the tray body 40 enters the tray frame 20, the arc-shaped positioning blocks 31 around the tray frame 20 are pressed into the arc-shaped grooves 44 around the tray body 40. The arc-shaped positioning blocks 31 entering the arc-shaped grooves 44 complete the positioning and support, effectively preventing the tray body 40 from falling out of the tray frame 20, and also making it easy to pick up and put down the tray body 40.

[0028] When the drawer body needs to be removed from the drawer rack, the arc-shaped positioning block 31 disengages from the arc-shaped groove 44. The arc-shaped positioning block 31 presses against the positioning rod 34 and the positioning plate 33, and the positioning plate 33 presses against the telescopic spring 32, so that the arc-shaped positioning block 31 enters the positioning hole 22, making it easy for the drawer body to fall into the drawer rack. The back-and-forth operation is simple and convenient, and at the same time, it can provide good positioning support for the drawer body. The structure is simple and stable.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 tray locking mechanism, comprising a base frame (10) with omnidirectional casters, characterized in that, A tray frame (20) is fixedly installed on the top of the base frame (10). The tray frame (20) is evenly equipped with several base plates (21). The tray frame (20) has positioning holes (22) around the top of the base plates (21). An arc-shaped positioning block (31) is movably arranged in the positioning holes (22). The tray frame (20) has a positioning frame (30) fixedly installed inside the positioning holes (22). The positioning frame (30) has a plurality of telescopic springs (32) evenly installed on the side away from the arc-shaped positioning block (31). A positioning plate (33) is fixedly installed on the top of the telescopic spring (32). A positioning rod (34) is fixedly installed on the side of the positioning plate (33) away from the telescopic spring (32). The arc-shaped positioning block (31) that moves in the positioning hole (22) is fixedly installed on the top of the positioning rod (34).

2. The pallet locking mechanism according to claim 1, characterized in that: The size of the positioning hole (22) matches the size of the arc-shaped positioning block (31), and the arc-shaped positioning block (31) extends through and moves outside the positioning hole (22).

3. The pallet locking mechanism according to claim 1, characterized in that: The top of the base plate (21) is provided with a base groove (23), and a base pulley (24) is slidably connected to the base plate (21) in the base groove (23).

4. A tray, characterized in that: The pallet locking mechanism includes any one of claims 1-3, and further includes a pallet body (40), the pallet body (40) being movably disposed at the top of the base plate (21), the bottom of the pallet body (40) having movable holes (42) around its perimeter, a fixed rotating shaft (41) being fixedly installed in the movable holes (42) of the pallet body (40), and the base pulley (24) being movably connected to the fixed rotating shaft (41).

5. A pallet according to claim 4, characterized in that: The tray body (40) has a U-shaped handle (43) fixedly installed at the center of one end away from the tray frame (20). The tray body (40) has an arc-shaped groove (44) around its perimeter that matches the size of the arc-shaped positioning block (31), and the arc-shaped positioning block (31) moves within the arc-shaped groove (44).