Three-way forklift auxiliary door frame

By optimizing the guide groove structure and installation space of the three-way forklift sub-gantry, the problem of limited lifting height is solved, and the forklift can operate efficiently in high-rise shelves or high stacking tasks, thereby improving operating efficiency and equipment stability.

CN223342347UActive Publication Date: 2025-09-16SUZHOU PIONEER MATERIAL HANDLING EQUIP & TECH
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Patent Information

Application Number
CN202422916055.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-09-16
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

The top mounting plate of the existing three-way forklift auxiliary mast limits the lifting height of the lifting chain, resulting in low operating efficiency of the forklift in high-bay racking or high stacking tasks, increasing complexity and cost.

Method used

A three-way forklift sub-gantry is designed. By optimizing the guide groove structure and compact installation space, the third guide groove is formed by the symmetrically arranged first and second guide grooves and connecting plates, which expands the forklift's vertical operating range. The structural stability is enhanced by reinforcing ribs and mounting plates, and roller mounting seats and wire conduit are provided for cable management.

Benefits of technology

It significantly improves the operating efficiency and flexibility of forklifts in high-bay or high-stack tasks, reduces operational complexity and costs, while improving the stability and aesthetics of the equipment and extending its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a three-way forklift auxiliary door frame which comprises a first plate and a second plate, a first guide groove is formed in the first plate, a second guide groove is formed in the second plate, the first plate is connected with the second plate through a connecting plate, and the connecting plate is connected with the first guide groove. The side edges of the first plate and the second plate and one face of the connecting plate jointly form a third guide groove. According to the three-way forklift auxiliary portal frame, a flat and compact installation space is provided, the problem that in the prior art, the lifting height of a lifting chain is restricted by a top installation plate is effectively solved, the working range of a forklift in the vertical direction is remarkably enlarged, and particularly when the forklift faces a high-position goods shelf or executes a high stacking task, the working efficiency is greatly improved. Tasks can be directly and efficiently completed, the complexity and cost of operation are reduced, and therefore the overall efficiency and flexibility of warehousing operation are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of forklift handling equipment, in particular to a three-way forklift auxiliary door frame. Background Art

[0002] With the continuous innovation of modern intensive warehousing and logistics technology, the application scope of narrow-aisle racking systems and their key supporting equipment - narrow-aisle manned three-way stacking forklifts - is rapidly expanding, becoming an indispensable part of improving warehousing operation efficiency. However, in the existing sub-gantry design, a significant problem is that the presence of the top mounting plate restricts the lifting height of the lifting chain. Specifically, this mounting plate essentially sets the upper limit that the lifting chain can reach, thereby limiting the forklift's operating range in the vertical direction. In the actual operations of the logistics industry, this height restriction is particularly prominent, especially when facing high-rise shelves or performing high stacking tasks. When the goods are placed at a higher position, due to the limited lifting height of the lifting chain, the forklift may not be able to complete the task directly and efficiently, which undoubtedly increases the complexity and cost of the operation. Utility Model Content

[0003] In order to solve all or part of the problems of the above-mentioned prior art, the utility model provides a three-way forklift sub-gantry, which effectively solves the problem of limited lifting height through an optimized guide groove structure and a compact installation space, and significantly improves the efficiency and flexibility of the forklift in high-level shelf and high stacking operations.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A three-way forklift sub-gantry comprises a first plate and a second plate, wherein a first guide groove is formed on the first plate and a second guide groove is formed on the second plate. The first and second plates are connected by a connecting plate, and the side edges of the first and second plates and a side of the connecting plate together form a third guide groove. This sub-gantry frame provides a flat and compact installation space, effectively resolving the problem of the top mounting plate restricting the lifting height of the lifting chain in the prior art. This significantly expands the forklift's vertical operating range, particularly when handling high-rise shelves or performing high stacking tasks. This allows for direct and efficient completion of tasks, reducing operational complexity and costs, thereby improving the overall efficiency and flexibility of warehousing operations.

[0006] The first guide groove and the second guide groove are symmetrically arranged, and corresponding positions on the sides of the first guide groove and the second guide groove are structurally reinforced by fixing plates.

[0007] It also includes at least two mounting plates, specifically a first mounting plate and a second mounting plate, the first mounting plate is fixedly arranged at the bottom of the first plate and the second plate, and the second mounting plate is fixedly arranged in the upper middle area of ​​the first plate and the second plate.

[0008] The first mounting plate is provided with an assembly hole for mounting the roller and also provided with a mounting hole for mounting the lifting chain.

[0009] The second mounting plate is provided with an assembly hole for mounting a roller, and a reinforcing rib is further provided at the connection between the second mounting plate, the first plate and the second plate.

[0010] The bottom surface of the reinforcing rib is fixedly connected to the second connecting plate, and the side surfaces of the reinforcing rib are fixedly connected to the side surfaces of the first plate and the second plate.

[0011] A limit block is further provided at one end of the second mounting plate away from the first plate and the second plate.

[0012] It also includes at least one roller mounting seat, which is arranged in the middle and lower area of ​​the first plate and the second plate, and specifically includes a roller shaft head and a mounting seat body connected thereto, and the mounting seat body is fixedly connected to the side edges of the first plate and the second plate.

[0013] Mounting blocks are respectively provided at the same position below the second mounting plate on the first plate and the second plate, and each mounting block is provided with an assembly hole for mounting a driving mechanism.

[0014] The first plate and the second plate are further provided with a wire threading tube and a wire binding plate for arranging cables. The wire binding plate is arranged in the middle area of ​​the first plate and the second plate, and the wire threading tube is arranged below the second mounting plate.

[0015] The utility model has at least the following beneficial effects:

[0016] 1) By designing a first plate and a second plate with symmetrically arranged first and second guide grooves, and connecting the first and second plates with a connecting plate to form a third guide groove, this structural design allows the three-way forklift sub-gantry to have greater flexibility and adaptability in the direction of movement of the lifting chain. Compared to traditional designs, this sub-gantry effectively eliminates the restriction of the lifting chain's height by the top mounting plate, thereby expanding the forklift's vertical operating range. This allows for direct and efficient completion of tasks, especially when working with high-bay racks or performing high stacking operations, reducing operational complexity and costs.

[0017] 2) By installing a first mounting plate and a second mounting plate at the bottom and upper midsection of the first and second plates, respectively, and providing mounting holes for rollers and the lifting chain, the sub-gantry's structural stability is enhanced while ensuring smooth operation of the lifting chain. Furthermore, reinforcing ribs at the junction of the second mounting plate with the first and second plates further enhance the sub-gantry's load-bearing capacity, maintaining its structural integrity and safety even when handling heavy cargo.

[0018] 3) This utility model also provides a more compact and streamlined sub-gantry structure by providing roller mounting brackets in the lower-middle region of the first and second plates, as well as mounting blocks for the drive mechanism at appropriate locations. Furthermore, the provision of wire conduits and binding plates effectively eliminates the problem of disorganized cables, enhancing the neatness and aesthetics of the equipment. These features not only improve forklift efficiency but also facilitate maintenance and extend its service life, providing strong support for warehousing operations in the logistics industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram from a first perspective of a three-way forklift auxiliary mast according to an embodiment of the present utility model.

[0021] Figure 2 This is a schematic structural diagram from a second perspective of a three-way forklift auxiliary mast according to an embodiment of the present utility model.

[0022] Figure 3 This is a schematic structural diagram from a third perspective of a three-way forklift auxiliary mast according to an embodiment of the present utility model.

[0023] Figure markings: 1-first plate; 2-second plate; 3-connecting plate; 4-fixing plate; 5-first mounting plate; 6-second mounting plate; 601-reinforcement rib; 602-limiting block; 7-roller mounting seat; 701-roller shaft head; 702-mounting seat body; 8-mounting block; 9-wire tube; 10-wire binding plate. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the specific embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] The implementation of the present invention is described in detail below with reference to specific embodiments.

[0026] In the present utility model embodiment, combined with reference Figure 1-Figure 3 As shown, a three-way forklift sub-gantry is provided, the core components of which include a first plate 1, a second plate 2 and a connecting plate 3. Specifically, a first guide groove is formed on the first plate 1, and a second guide groove is formed on the second plate 2, and the design of the two is symmetrical. The first plate 1 and the second plate 2 are connected by the connecting plate 3, and together they constitute the main frame structure of the sub-gantry. In addition, the side edges of the first plate 1 and the second plate 2 and one side of the connecting plate 3 together form a third guide groove, which optimizes the guiding function. In order to further enhance the strength and durability of the structure, the sides of the first guide groove and the second guide groove are reinforced with fixed plates 4 at corresponding positions. This measure effectively resists the lateral force and torsional load during operation, ensuring the safe and reliable operation of the sub-gantry under various working conditions. The sub-gantry frame structure provided by the utility model does not have a mounting plate at the top, so that when the customer has special needs, the overall height of the sub-gantry can be flexibly increased by adjusting the length of the first plate 1 and the second plate 2. This innovative design ensures that the track travel length is extended accordingly, allowing the forks to be lifted to a higher working position, fully meeting the demand for higher stacking capabilities.

[0027] The sub-gantry is equipped with at least two mounting plates, specifically a first mounting plate 5 and a second mounting plate 6, each of which performs different functions and roles. The first mounting plate 5 is fixed to the bottom of the first and second plates 1 and 2, providing a stable support base for the entire sub-gantry. This mounting plate is not only cleverly designed with mounting holes for rollers, ensuring precise positioning and smooth operation, but also includes additional mounting holes for lifting chains. This design enables the sub-gantry to efficiently cooperate with forklifts for lifting operations. The second mounting plate 6 is fixed to the upper-middle area of ​​the first and second plates 1 and 2, providing additional support and stability to the upper-middle structure of the sub-gantry. Similar to the first mounting plate 5, the second mounting plate 6 also has mounting holes for rollers, ensuring their proper distribution and coordinated operation throughout the sub-gantry structure. Furthermore, to further enhance the connection strength between the second mounting plate 6 and the first and second plates 1 and 2, the present invention cleverly incorporates reinforcing ribs 601 at the junction of the second mounting plate 6, the first and second plates 1 and 2. The bottom surfaces of these reinforcing ribs 601 are fixedly connected to the second connecting plate 3, while the sides closely mate with the sides of the first and second plates 1 and 2, forming a sturdy triangular support structure that significantly enhances the overall strength and stability of the sub-gantry. Furthermore, a limit block 602 is cleverly positioned at the end of the second mounting plate 6, facing away from the first and second plates 1 and 2. This design not only effectively prevents excessive movement and detachment of the rollers on the sub-gantry during operation, but also provides more intuitive and clear operating instructions for the forklift operator, further enhancing operational safety and reliability.

[0028] The auxiliary gantry is also provided with a roller mounting seat 7, which is arranged in the middle and lower area of ​​the first plate 1 and the second plate 2, and is composed of a roller shaft head 701 and a mounting seat body 702 connected thereto. The mounting seat body 702 is firmly connected to the side edges of the first plate 1 and the second plate 2, providing a solid mounting base for the roller and ensuring the stable operation of the roller during operation. Furthermore, on the first plate 1 and the second plate 2, at the same position below the second mounting plate 6, a mounting block 8 is provided. These mounting blocks 8 are all provided with precise assembly holes, which are specially designed for installing the drive mechanism, so that the drive mechanism can be fixed to the auxiliary gantry, thereby driving the roller for precise movement and adjustment. In addition, in order to cope with complex cable management needs, the utility model also provides a wire tube 9 and a wire binding plate 10 for organizing cables on the first plate 1 and the second plate 2. The wire binding plate 10 is cleverly placed in the middle area of ​​the first plate 1 and the second plate 2, providing an orderly and stable binding platform for the cables. The wire conduit 9 is carefully arranged below the second mounting plate 6, providing a convenient channel for the cables, so that the cables can pass through the sub-gantry structure in an orderly manner, avoiding the risk of cable confusion and damage.

[0029] The sub-gantry frame of this utility model is designed for the connection between the cab and the bridge structure of a three-way forklift, with the aim of achieving flexible movement of the forks in the vertical direction (up and down) and the horizontal direction (left and right). The frame is made of a variety of high-quality steel plate materials and is spliced ​​together through a precise welding process to ensure the stability and load-bearing capacity of the structure. After welding is completed, the mounting surfaces and mounting holes of all connectors are strictly machined as a whole to ensure the flatness of the mounting surfaces and the accuracy of the mounting holes, thereby facilitating the accurate installation and positioning of subsequent components. Finally, in order to improve the appearance quality and corrosion resistance of the product, the processed sub-gantry frame is also carefully polished and professionally painted to make it more beautiful and durable.

[0030] In summary, the auxiliary mast frame of the present invention is not only structurally stable, safe and reliable, but also has comprehensive functions and strong adaptability, which significantly improves the operating efficiency and safety of the three-way forklift.

[0031] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A three-way forklift auxiliary mast, characterized in that: The invention comprises a first plate (1) and a second plate (2), wherein a first guide groove is formed on the first plate (1), and a second guide groove is formed on the second plate (2), the first plate (1) and the second plate (2) are connected via a connecting plate (3), and the side edges of the first plate (1) and the second plate (2) and a surface of the connecting plate (3) jointly form a third guide groove.

2. The auxiliary mast according to claim 1, characterized in that: The first guide groove and the second guide groove are arranged symmetrically, and corresponding positions on the sides of the first guide groove and the second guide groove are structurally reinforced by a fixing plate (4).

3. The auxiliary mast according to claim 1, characterized in that: It also includes at least two mounting plates, specifically a first mounting plate (5) and a second mounting plate (6), wherein the first mounting plate (5) is fixedly arranged at the bottom of the first plate (1) and the second plate (2), and the second mounting plate (6) is fixedly arranged at the middle and upper regions of the first plate (1) and the second plate (2).

4. The auxiliary mast according to claim 3, characterized in that: The first mounting plate (5) is provided with an assembly hole for mounting a roller, and is also provided with a mounting hole for mounting a lifting chain.

5. The auxiliary mast according to claim 3, characterized in that: The second mounting plate (6) is provided with an assembly hole for mounting a roller, and a reinforcing rib (601) is further provided at the connection between the second mounting plate (6), the first plate (1) and the second plate (2).

6. The auxiliary mast according to claim 5, characterized in that: The bottom surface of the reinforcing rib (601) is fixedly connected to the second mounting plate (6), and the side surfaces of the reinforcing rib (601) are fixedly connected to the side surfaces of the first plate (1) and the second plate (2).

7. The auxiliary mast according to claim 3, characterized in that: A limiting block (602) is also provided at one end of the second mounting plate (6) away from the first plate (1) and the second plate (2).

8. The auxiliary mast according to claim 1, characterized in that: The invention also includes at least one roller mounting seat (7), which is arranged in the middle and lower areas of the first plate (1) and the second plate (2), and specifically includes a roller shaft head (701) and a mounting seat body (702) connected thereto, and the mounting seat body (702) is fixedly connected to the side edges of the first plate (1) and the second plate (2).

9. The auxiliary mast according to claim 3, characterized in that: Mounting blocks (8) are respectively provided on the first plate (1) and the second plate (2) at the same position below the second mounting plate (6), and the mounting blocks (8) are each provided with an assembly hole for mounting a drive mechanism.

10. The auxiliary mast according to claim 3, characterized in that: The first plate (1) and the second plate (2) are also provided with a wire threading tube (9) and a wire binding plate (10) for arranging cables. The wire binding plate (10) is arranged in the middle area of ​​the first plate (1) and the second plate (2), and the wire threading tube (9) is arranged below the second mounting plate (6).