Floating mounting device for pallet fork positioning pin

By designing a floating mounting device, the problems of jamming and insufficient positioning accuracy caused by asynchronous movement of the locating pins in the double-fork body are solved, realizing smooth operation and high-precision positioning of the forks and reducing modification costs.

CN224147669UActive Publication Date: 2026-04-21MIYAS LOGISTICS EQUIP (KUNSHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MIYAS LOGISTICS EQUIP (KUNSHAN) CO LTD
Filing Date
2025-04-30
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing double-fork structures, the positioning pins are mechanically jammed and have insufficient positioning accuracy due to asynchronous movement of the two upper forks, and modifying the structure is costly.

Method used

A floating mounting device is adopted, which allows the second mounting plate to float slightly in the horizontal direction relative to the second upper fork through the clearance fit between the bushing and the positioning pin. This compensates for the displacement deviation between the two upper forks and maintains the relative positional accuracy between the mounting plates through the connecting plate, avoiding jamming and improving positioning accuracy.

Benefits of technology

It enables smooth fork operation and high-precision positioning, reduces equipment failures, lowers modification costs, and is compatible with existing equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a floating mounting device of a fork positioning pin, which comprises a first upper fork and a second upper fork of a double-fork-body fork, the first upper fork and the second upper fork are symmetrically arranged, a first mounting plate is mounted on the first fork, a second mounting plate is mounted on the second fork, the first mounting plate is rigidly connected with the first upper fork through a fixed connecting unit, and the second mounting plate is rigidly connected with the second upper fork through a fixed connecting unit. The second mounting plate is connected with the second upper fork through a floating connecting unit, the floating connecting unit comprises a shaft sleeve and a positioning pin, a plurality of first mounting holes are formed in the second mounting plate, second mounting holes are formed in the positions, corresponding to the first mounting holes, of the second upper fork, and the shaft sleeve is arranged on the positioning pin penetrating through the first mounting holes and the second mounting holes in a sleeving mode; an assembly gap is formed among the shaft sleeve, the second mounting plate and the second upper fork, and the first mounting plate and the second mounting plate are connected through a connecting plate. According to the utility model, the clamping stagnation phenomenon caused by rigid connection is avoided, and the smooth operation of the pallet fork is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of logistics equipment technology, specifically to a floating mounting device for fork positioning pins. Background Technology

[0002] With the rapid development of the intelligent logistics industry, automated storage and retrieval systems (AS / RS) are increasingly being used in warehousing, papermaking, packaging, printing, tobacco, home appliances, and automobile manufacturing. As a core component in automated warehousing equipment used for storing and retrieving goods, the positioning accuracy of the forks directly affects the stability and efficiency of goods storage and retrieval.

[0003] In the widely used double-fork structure on the market, the two upper forks are limited by mechanical structure and cannot achieve completely synchronized extension and retraction. In scenarios requiring multi-point positioning via locating pins (such as high-precision picking, pallet positioning, etc.), traditional technology typically uses a rigid connection to fix the locating pins to the two upper forks. For example, the locating pins are directly installed on the two upper forks, or the relative positions of the two are forcibly constrained by rigid connectors.

[0004] However, the following shortcomings still exist in the existing technology:

[0005] 1. High risk of mechanical jamming: Due to the asynchronous movement of the two upper forks, the rigid connection will cause a displacement difference between the positioning pins, which will lead to jamming of the fork structure and even mechanical damage, affecting the normal operation of the equipment;

[0006] 2. Insufficient positioning accuracy: The rigid connection cannot compensate for the asynchronous movement of the upper fork, resulting in deviations in the relative positions of multiple positioning points, making it difficult to meet the requirements of high-precision access.

[0007] 3. High cost of structural modification: Modifying the fork body structure to adapt to positioning requirements will not only increase design and manufacturing costs, but may also compromise the stability of the original structure.

[0008] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this application. Utility Model Content

[0009] In view of this, the purpose of this utility model is to provide a floating mounting device for fork positioning pins.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] A floating mounting device for a fork positioning pin includes a first upper fork and a second upper fork of a double-fork body, and the first upper fork and the second upper fork are symmetrically arranged. A first mounting plate is mounted on the first upper fork, and a second mounting plate is mounted on the second upper fork. The first mounting plate is rigidly connected to the first upper fork through a fixed connection unit.

[0012] The second mounting plate and the second upper fork are connected by a floating connection unit, which includes a bushing and a positioning pin. The second mounting plate has a plurality of first mounting holes, and the second upper fork has a second mounting hole at a position corresponding to the first mounting holes. The bushing is fitted onto the positioning pin that passes through the first mounting holes and the second mounting holes, and an assembly gap is formed between the bushing and the second mounting plate and the second upper fork.

[0013] The first mounting plate and the second mounting plate are connected by a connecting plate.

[0014] Furthermore, the first mounting plate and the first upper fork are fixedly connected by bolts.

[0015] Furthermore, L-shaped reinforcing seats are installed on the opposing sides of the first upper fork and the second upper fork, and the L-shaped reinforcing seats are fixedly connected to the first mounting plate and the second mounting plate, respectively.

[0016] Furthermore, the first mounting hole and the second mounting hole are waist-shaped mounting holes.

[0017] Furthermore, the connecting plate is an I-shaped connecting plate.

[0018] Furthermore, the connecting plate is arranged perpendicular to the first upper fork and the second upper fork in the horizontal direction.

[0019] Furthermore, an elastic shock-absorbing pad is provided at the connection between the connecting plate and the first mounting plate and the second mounting plate.

[0020] Furthermore, the first mounting plate and the second mounting plate are rectangular plates with thickness.

[0021] Furthermore, a weight-reducing hole is provided in the web of the I-shaped structure of the connecting plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: By achieving a clearance fit between the bushing and the locating pin and the second mounting plate, the second mounting plate is allowed to float slightly horizontally relative to the second upper fork. When the first and second upper forks of the double-fork body cannot move synchronously due to structural characteristics, the second mounting plate can adaptively adjust through this assembly gap to compensate for the displacement deviation of the two upper forks, avoiding jamming caused by rigid connection and ensuring smooth operation of the forks. The two mounting plates are connected by a connecting plate, which can accurately maintain the relative position between the two mounting plates. This effectively ensures the positional accuracy of the locating pin installed on the mounting plate, thereby improving the overall positioning accuracy of the forks, ensuring accurate storage and retrieval of goods, and reducing potential damage to goods or equipment failure caused by inaccurate positioning. Simultaneously, functional upgrades are achieved through additional components such as mounting plates and connecting plates without involving cutting, welding, or major modifications to the main fork structure. It can be directly adapted to existing double-fork bodies and is compatible with different equipment models. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0025] Appendix Figure 2 This is a schematic diagram of the structure of the floating connection unit in an embodiment of this application;

[0026] Appendix Figure 3 This is a structural schematic diagram of the fixed connection unit in an embodiment of this application.

[0027] Explanation of reference numerals and components in the accompanying drawings:

[0028] 1. First upper fork; 2. Second upper fork; 3. First mounting plate; 4. Second mounting plate; 5. Bushing; 6. Locating pin; 7. First mounting hole; 8. Connecting plate; 9. L-shaped reinforcing seat. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described through specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] See appendix Figures 1-3 As shown, this application discloses a floating mounting device for a fork locating pin, comprising a first upper fork 1 and a second upper fork 2 of a double-fork fork, symmetrically arranged. A first mounting plate 3 is mounted on the first upper fork 1, rigidly connected to it via a fixed connecting unit. Preferably, the first mounting plate 3 and the first upper fork 1 can be fixedly connected by multiple bolts for easy disassembly and maintenance. A second mounting plate 4 is mounted on the second upper fork 2, connected to it via a floating connecting unit. The floating connecting unit includes a bushing 5 and a locating pin 6. The second mounting plate 4 has several first mounting holes 7, and the second upper fork 2 has second mounting holes corresponding to the first mounting holes 7. The bushing 5 is fitted onto the locating pin 6 passing through the first mounting holes 7 and the second mounting holes, forming an assembly gap between the bushing 5, the second mounting plate 4, and the second upper fork 1. Preferably, both the first mounting plate 3 and the second mounting plate 4 are rectangular plates of a certain thickness, providing a stable mounting base and structural support.

[0031] The first mounting plate 3 and the second mounting plate 4 are connected by a connecting plate 8, which balances the stability of a rigid connection with the cushioning of a floating connection. Preferably, the connecting plate 8 adopts an I-shaped structure with a weight-reducing hole in the middle web to reduce the overall weight while ensuring strength. The connecting plate 8 is set perpendicular to the first upper fork 1 and the second upper fork 2 in the horizontal direction to ensure the rationality of the force transmission path.

[0032] L-shaped reinforcing seats 9 are installed on the opposing sides of the first upper fork 1 and the second upper fork 2. The L-shaped reinforcing seats 9 are fixedly connected to the first mounting plate 3 and the second mounting plate 4 respectively to enhance the overall rigidity.

[0033] Preferably, in this embodiment, the first mounting hole 7 and the second mounting hole are waist-shaped mounting holes, which can expand the range of motion of the positioning pin 6 and adapt to floating requirements. When the second upper fork 2 and the first upper fork 1 move asynchronously, the bushing 5 can slide in the long axis direction of the waist-shaped mounting hole to compensate for the displacement difference between the two upper forks and avoid jamming.

[0034] Preferably, in this embodiment, an elastic damping pad, such as a rubber pad, is provided at the connection between the connecting plate 8 and the first mounting plate 3 and the second mounting plate 4. This pad can absorb vibration energy during movement, reduce equipment operating noise, and extend component life.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A floating mounting device for a fork positioning pin of a fork positioning device, comprising a first upper fork and a second upper fork of a two-pronged fork body, the first upper fork and the second upper fork being arranged symmetrically, characterized in that The first upper fork is equipped with a first mounting plate, and the second upper fork is equipped with a second mounting plate. The first mounting plate is rigidly connected to the first upper fork through a fixed connection unit. The second mounting plate and the second upper fork are connected by a floating connection unit, which includes a bushing and a positioning pin. The second mounting plate has a plurality of first mounting holes, and the second upper fork has a second mounting hole at a position corresponding to the first mounting holes. The bushing is fitted onto the positioning pin that passes through the first mounting holes and the second mounting holes, and an assembly gap is formed between the bushing and the second mounting plate and the second upper fork. The first mounting plate and the second mounting plate are connected by a connecting plate.

2. A floating mounting arrangement for a fork positioning pin according to claim 1, characterised in that, The first mounting plate and the first upper fork are fixedly connected by bolts.

3. A floating mounting arrangement for a fork positioning pin according to claim 1, wherein, Both the first upper fork and the second upper fork are equipped with L-shaped reinforcing seats on their opposing sides, and the L-shaped reinforcing seats are fixedly connected to the first mounting plate and the second mounting plate, respectively.

4. A floating mounting arrangement for a fork positioning pin according to claim 1, wherein, The first mounting hole and the second mounting hole are waist-shaped mounting holes.

5. A floating mounting arrangement for a fork positioning pin according to claim 1, wherein, The connecting plate is an I-shaped connecting plate.

6. A floating mounting arrangement for a fork positioning pin as claimed in claim 1, wherein, The connecting plate is positioned horizontally perpendicular to the first upper fork and the second upper fork.

7. A floating mounting arrangement for a fork positioning pin as claimed in claim 1, wherein, An elastic shock-absorbing pad is provided at the connection between the connecting plate and the first mounting plate and the second mounting plate.

8. A floating mounting arrangement for a fork positioning pin according to claim 1, wherein, The first mounting plate and the second mounting plate are rectangular plates with thickness.

9. A floating mounting arrangement for a fork positioning pin as claimed in claim 5, wherein, The connecting plate has weight-reduction holes in the middle web of its I-shaped structure.