Quick locking structure for tray positioning

CN224916466UActive Publication Date: 2026-10-30NINGDEWELL INTELLIGENT EQUIPMENT CO LTD
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Patent Information

Application Number
CN202522703463.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-20
Publication Date
2026-10-30
Estimated Expiration
2035-12-20

AI Technical Summary

Technical Problem

[0003]现有的托盘在通过机械臂转运过程中,通常采用人工螺丝紧固的方式对托盘进行定位锁紧,需要利用螺钉贯穿托盘,然后与机械臂上的定位件锁紧,不仅提高了人工的劳动强度,而且降低了工作效率,无法快速的定位锁紧,所以我们提出了用于托盘定位的快速锁紧结构来解决上述存在的问题

Benefits of technology

[0020]相比于现有技术,本实用新型的优点在于:

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Abstract

The utility model discloses a quick locking structure for tray positioning belongs to tray locking technical field, a quick locking structure for tray positioning, including tray body and the symmetrical opening on the threaded hole of tray body, the inside installation of threaded hole is protruding from the positioning column of tray body, and the part ring of positioning column protruding with tray body is equipped with the clamping slot, the top of tray body is installed with locking sleeve, the opening of locking sleeve is equipped with the jack -in hole of butt joint with positioning column, the inner chamber of locking sleeve is equipped with the locating slot, and the inside installation of locating slot is with spring, the longitudinal position of locking sleeve's lateral wall is equipped with air inlet and air outlet in proper order, it resets through spring, and the end of movable seat is abutted with steel ball on retainer, and is clamped with clamping slot, thereby positioning and quick locking to tray body, not only reduce the labor intensity of artificial, and improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of pallet locking technology, and more specifically, to a quick-locking structure for pallet positioning. Background Technology

[0002] Pallets need to be locked primarily to ensure the stability of goods during transportation, handling, or storage, preventing displacement, tipping, or damage caused by vibration, tilting, or external forces. The locking function secures the relative position of the pallet and goods, preventing slippage, tilting, or even collapse due to bumps or improper handling during transport. For example, liquids must be placed vertically with caps tightened, and fragile items must be individually secured to reduce the risk of collision.

[0003] In existing pallet transfer processes using robotic arms, pallets are typically positioned and locked using manual screw fastening. This requires screws to penetrate the pallet and then lock it to the positioning components on the robotic arm, which not only increases the labor intensity of manual workers but also reduces work efficiency and makes it impossible to quickly position and lock the pallet. Therefore, we propose a quick-locking structure for pallet positioning to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a quick-locking structure for pallet positioning. It uses a spring to reset and utilizes the end of the movable seat to abut against the steel ball installed on the retainer and engage with the slot, thereby positioning and quickly locking the pallet body. This not only reduces the labor intensity of manual labor but also improves work efficiency.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A quick-locking structure for pallet positioning includes a pallet body and threaded holes symmetrically opened on the pallet body. A positioning post protruding from the pallet body is installed on the inner side of the threaded hole, and a groove is provided around the part of the positioning post that protrudes from the pallet body.

[0009] A locking sleeve is installed on the top of the tray body. The locking sleeve has an insertion hole that is opposite to the positioning post. The inner cavity of the locking sleeve has a positioning groove, and a spring is installed on the inner side of the positioning groove. An air inlet and an air outlet are sequentially opened on the longitudinal position of the side wall of the locking sleeve.

[0010] The inner side of the locking sleeve is equipped with a movable seat connected to the spring. The inner wall of the locking sleeve is fixedly connected with a retainer with a ring structure at the part corresponding to the insertion hole. The retainer is equipped with steel balls that engage with the slot and abut against the end of the movable seat. Multiple steel balls are arranged in the radial position of the retainer.

[0011] The locking sleeve has an integrally formed fixing base at the end away from the insertion hole, and the fixing base has symmetrically formed assembly holes on its edge.

[0012] Furthermore, the outer wall of the positioning post is provided with an external thread that is screwed into the threaded hole.

[0013] Furthermore, the end of the positioning post away from the external thread is provided with a chamfer, and the outer diameter of the small circle of the chamfer is smaller than the inner diameter of the insertion hole.

[0014] Furthermore, a filter screen is detachably connected to the inner side of the air outlet.

[0015] Furthermore, the outer wall of the movable seat is respectively inlaid with a first sealing ring and a second sealing ring that abut against the inner wall of the locking sleeve.

[0016] Furthermore, the movable seat has gaps at the locations corresponding to the air inlet and air outlet.

[0017] Furthermore, the inner diameter of the retainer is adapted to the inner diameter of the insertion hole, and the retainer has a spherical hole for assembling the steel ball, and the inner diameter of the small diameter end of the spherical hole is smaller than the outer diameter of the steel ball.

[0018] Furthermore, the end of the movable seat that abuts against the steel ball is configured with a right-angled wedge shape.

[0019] 3. Beneficial effects

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] (1) In this solution, when the positioning pin is inserted into the insertion hole on the locking sleeve, gas is introduced into the air inlet. Under the action of pressure, the movable seat is pushed to move and the spring is compressed and deformed. After the positioning pin is fully connected with the insertion hole, the air pump is turned off and the pressure is released through the air outlet, so that the spring is reset. The end of the movable seat abuts against the steel ball installed on the retainer and engages with the slot, thereby positioning and quickly locking the pallet body. This not only reduces the labor intensity of manual labor but also improves work efficiency.

[0022] (2) In this solution, the gap between the movable seat and the locking sleeve is filled by the first sealing ring and the second sealing ring, thereby ensuring the airtightness between the movable seat and the locking sleeve, so as to ensure that the movable seat can move normally under air pressure. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the tray body structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the positioning column structure of this utility model;

[0026] Figure 4 This is a front view schematic diagram of the locking sleeve of this utility model;

[0027] Figure 5 This is a cross-sectional view of the locking sleeve AA portion of this utility model.

[0028] Explanation of the labels in the diagram:

[0029] 1. Tray body; 2. Threaded hole; 3. Positioning pin; 4. Slot; 5. External thread; 6. Locking sleeve; 7. Insertion hole; 8. Spring; 9. Air inlet; 10. Air outlet; 11. Filter screen; 12. Movable seat; 13. First sealing ring; 14. Second sealing ring; 15. Cage; 16. Steel ball; 17. Fixed seat. Detailed Implementation

[0030] 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.

[0031] Example:

[0032] Please see Figure 1-5 A quick-locking structure for pallet positioning includes a pallet body 1 and threaded holes 2 symmetrically opened on the pallet body 1. A positioning post 3 protruding from the pallet body 1 is installed on the inner side of the threaded hole 2, and a groove 4 is provided around the part of the positioning post 3 that protrudes from the pallet body 1.

[0033] A locking sleeve 6 is installed on the top of the tray body 1. The locking sleeve 6 has an insertion hole 7 that is connected to the positioning post 3. The inner cavity of the locking sleeve 6 has a positioning groove, and a spring 8 is installed on the inner side of the positioning groove. An air inlet 9 and an air outlet 10 are sequentially opened on the longitudinal position of the side wall of the locking sleeve 6.

[0034] The inner side of the locking sleeve 6 is equipped with a movable seat 12 connected to the spring 8. The inner wall of the locking sleeve 6 is fixedly connected to the part corresponding to the insertion hole 7 with a retainer 15 arranged in a ring structure. The retainer 15 is equipped with steel balls 16 that engage with the slot 4 and abut against the end of the movable seat 12. Multiple steel balls 16 are arranged in the radial position of the retainer 15.

[0035] The locking sleeve 6 has an integrally formed fixing seat 17 at the end away from the insertion hole 7, and the fixing seat 17 has symmetrically opened assembly holes on its edge.

[0036] It should be noted that, in use, the quick-locking structure for pallet positioning involves mounting the locking sleeve 6 on the robotic arm using the fixed base 17, and simultaneously mounting the positioning pin 3 on the pallet body 1. The air inlet 9 is connected to the air pump via a pipeline. When the positioning pin 3 is inserted into the insertion hole 7 on the locking sleeve 6, gas is introduced into the air inlet 9. Under pressure, the movable base 12 moves and the spring 8 is compressed and deformed. After the positioning pin 3 is fully aligned with the insertion hole 7, the air pump is turned off and the pressure is released through the air outlet 10, causing the spring 8 to return to its original position. The end of the movable base 12 then abuts against the steel ball 16 mounted on the retainer 15 and engages with the slot 4, thereby positioning and quickly locking the pallet body 1. This not only reduces manual labor intensity but also improves work efficiency. By restarting the air pump and introducing gas into the air inlet 9, the steel ball 16 can disengage from the slot 4, allowing the pallet body 1 to be separated.

[0037] like Figure 2 , Figure 3 , Figure 5 As shown, the outer wall of the positioning post 3 is provided with an external thread 5 that is screwed into the threaded hole 2. The end of the positioning post 3 away from the external thread 5 is provided with a chamfer, and the outer diameter of the small circle of the chamfer is smaller than the inner diameter of the insertion hole 7.

[0038] It should be noted that this facilitates the assembly of the positioning post 3 with the tray body 1, and also facilitates the docking between the positioning post 3 and the insertion hole 7.

[0039] like Figure 5 As shown, a filter screen 11 is detachably connected to the inner side of the air outlet 10;

[0040] It should be noted that by setting the filter screen 11, impurities can be effectively prevented from entering the inside of the locking sleeve 6.

[0041] like Figure 5As shown, the outer wall of the movable seat 12 is respectively inlaid with a first sealing ring 13 and a second sealing ring 14 that abut against the inner wall of the locking sleeve 6. The movable seat 12 is provided with gaps at the parts corresponding to the air inlet 9 and the air outlet 10.

[0042] It should be noted that by using the first sealing ring 13 and the second sealing ring 14 to fill the gap between the movable seat 12 and the locking sleeve 6, the airtightness between the movable seat 12 and the locking sleeve 6 is ensured, so as to ensure that the movable seat 12 can move normally under air pressure.

[0043] like Figure 5 As shown, the inner diameter of the retainer 15 is adapted to the inner diameter of the insertion hole 7. The retainer 15 is provided with a spherical hole for assembling the steel ball 16, and the inner diameter of the small diameter end of the spherical hole is smaller than the outer diameter of the steel ball 16. The end of the movable seat 12 that abuts against the steel ball 16 is provided with a right-angled wedge structure.

[0044] It should be noted that the right-angled wedge structure at the end of the movable seat 12 facilitates the movement of the steel ball 16 in conjunction with the retainer 15, while the spherical hole design facilitates the reverse rolling of the steel ball 16 when the movable seat 12 is moved by air pressure.

[0045] In use: The locking sleeve 6 is installed on the robotic arm using the fixed base 17, and the positioning pin 3 is installed on the pallet body 1. The air inlet 9 is connected to the air pump through the pipeline. When the positioning pin 3 is inserted into the insertion hole 7 on the locking sleeve 6, gas is introduced into the air inlet 9. Under pressure, the movable seat 12 is moved and the spring 8 is compressed and deformed. After the positioning pin 3 is fully aligned with the insertion hole 7, the air pump is turned off and the pressure is released through the air outlet 10, so that the spring 8 returns to its original position. The end of the movable seat 12 abuts against the steel ball 16 installed on the retainer 15 and engages with the slot 4, thereby positioning and quickly locking the pallet body 1. This not only reduces the labor intensity of manual labor but also improves work efficiency. By turning on the air pump again to introduce gas into the air inlet 9, the steel ball 16 can be disengaged from the slot 4, and the pallet body 1 can be separated.

[0046] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A quick-locking structure for pallet positioning, comprising a pallet body (1) and threaded holes (2) symmetrically opened on the pallet body (1), characterized in that: A positioning post (3) protruding from the pallet body (1) is installed on the inner side of the threaded hole (2), and a groove (4) is provided around the part of the positioning post (3) that protrudes from the pallet body (1). A locking sleeve (6) is installed on the upper part of the tray body (1). The locking sleeve (6) has an insertion hole (7) that is opposite to the positioning post (3). The inner cavity of the locking sleeve (6) has a positioning groove, and a spring (8) is installed on the inner side of the positioning groove. An air inlet (9) and an air outlet (10) are sequentially opened on the longitudinal position of the side wall of the locking sleeve (6). The inner side of the locking sleeve (6) is equipped with a movable seat (12) connected to the spring (8). The inner wall of the locking sleeve (6) is fixedly connected with a retainer (15) with a ring structure at the part corresponding to the insertion hole (7). The retainer (15) is equipped with steel balls (16) that engage with the slot (4) and abut against the end of the movable seat (12). Multiple steel balls (16) are arranged in the radial position of the retainer (15). The locking sleeve (6) has a fixed base (17) integrally formed at one end away from the insertion hole (7), and the fixed base (17) has symmetrically opened assembly holes on its edge.

2. The quick-locking structure for pallet positioning according to claim 1, characterized in that: The outer wall of the positioning post (3) is provided with an external thread (5) that is screwed into the threaded hole (2).

3. The quick-locking structure for pallet positioning according to claim 2, characterized in that: The positioning post (3) has a chamfer at the end away from the external thread (5), and the outer diameter of the small circle of the chamfer is smaller than the inner diameter of the insertion hole (7).

4. The quick-locking structure for pallet positioning according to claim 1, characterized in that: A filter screen (11) is detachably connected to the inside of the air outlet (10).

5. The quick-locking structure for pallet positioning according to claim 1, characterized in that: The outer wall of the movable seat (12) is respectively inlaid with a first sealing ring (13) and a second sealing ring (14) that abut against the inner wall of the locking sleeve (6).

6. The quick-locking structure for pallet positioning according to claim 1, characterized in that: The movable seat (12) has gaps at the locations corresponding to the air inlet (9) and air outlet (10).

7. The quick-locking structure for pallet positioning according to claim 1, characterized in that: The inner diameter of the retainer (15) is adapted to the inner diameter of the insertion hole (7). The retainer (15) has a spherical hole for assembling the steel ball (16), and the inner diameter of the small diameter end of the spherical hole is smaller than the outer diameter of the steel ball (16).

8. The quick-locking structure for pallet positioning according to claim 1, characterized in that: The end of the movable seat (12) that abuts against the steel ball (16) is configured in a right-angled wedge shape.