Forklift access port assembly

By designing a rotatable cover structure that integrates with the housing support structure, the problems of time-consuming, labor-intensive, and easily lost traditional forklift access covers are solved, enabling quick opening and closing, improving maintenance efficiency and housing appearance quality.

CN224313190UActive Publication Date: 2026-06-02NINGBO RUYI JOINT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO RUYI JOINT CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional forklift access panel designs are time-consuming and labor-intensive, and are prone to loss, affecting maintenance efficiency and the flatness of the housing appearance.

Method used

Design a rotatable cover structure that forms a height difference with the shell through a support structure. The cover is flush with or separate from the shell surface in different positions. Combined with a pivot or hinge structure, it is hidden inside the shell to achieve quick opening and closing.

Benefits of technology

It improves the efficiency of cover plate disassembly and assembly, avoids damage to the housing caused by traditional covers, enhances the flatness and appearance consistency of the housing surface, reduces the risk of cover plate loss, and improves maintenance convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a fork truck technical field discloses a fork truck overhaul port subassembly, and the fork truck includes the casing, and the overhaul port subassembly includes: the overhaul port is located on the casing, makes the inside of casing and the outside world intercommunication, and the overhaul port is equipped with the support structure towards the inside of casing side, the support structure extends along the edge of overhaul port and forms the height difference with the outer surface of casing in the direction of the center of the overhaul port, the horizontal extension, the cover plate is rotatably embedded in the overhaul port, and has first rotation position and second rotation position, when the cover plate is located first rotation position, and abuts with the support structure, and closes the overhaul port, at this moment, the upper surface of cover plate is flush with the outer surface of casing, when the cover plate is located second rotation position, and separates with the support structure, and opens the overhaul port. The utility model's advantage lies in, simple structure, can improve the casing cover dismounting efficiency while guaranteeing the appearance of casing even.
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Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a forklift inspection port assembly. Background Technology

[0002] Forklifts, widely used in logistics, warehousing, and industrial production for material handling, rely heavily on operational stability and ease of maintenance for work efficiency. The fuel tank, a crucial component of the forklift's power system, is typically installed inside the forklift housing to store and supply fuel to the engine. To facilitate routine inspections, refueling, and filter replacements, the housing usually features an access panel that matches the fuel filler neck. However, traditional access panels often employ protruding cover structures, severely compromising the flatness of the housing surface. Some improved access panels use flush-mounted, recessed covers secured with multiple bolts evenly distributed circumferentially. While this design improves the surface flatness, opening the cover requires manually removing and reinstalling each bolt, a time-consuming and laborious process. Furthermore, the removed cover is easily lost due to the lack of a temporary securing device. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a forklift access panel assembly that has a simple structure and can improve the efficiency of disassembly and assembly of the cover while ensuring the flat appearance of the shell.

[0004] The technical solution adopted by this utility model to solve its technical problem is to provide a forklift access panel assembly, wherein the forklift includes a housing, and the access panel assembly includes:

[0005] An access port is provided on the housing to connect the interior of the housing with the outside. A support structure is provided on the side of the access port facing the interior of the housing. The support structure extends horizontally along the edge of the access port toward the center of the access port and forms a height difference with the outer surface of the housing.

[0006] A cover plate is rotatably embedded in the access port and has a first rotation position and a second rotation position. When the cover plate is in the first rotation position, it abuts against the support structure and closes the access port. At this time, the upper surface of the cover plate is flush with the outer surface of the housing. When the cover plate is in the second rotation position, it separates from the support structure and opens the access port.

[0007] Furthermore, the cover plate is rotatably connected to the access port via a pivot or hinge structure. The pivot or hinge structure is located inside the access port and is flush with the cover plate, and the upper surface of the pivot or hinge structure is flush with the outer surface of the housing.

[0008] Furthermore, both ends of the rotating shaft are rotatably inserted into the inspection port, and one side of the cover plate is connected to the outer wall of the rotating shaft, and can rotate around the axis of the rotating shaft between the first rotation position and the second rotation position.

[0009] Furthermore, the hinge structure includes a horizontally flush first connecting part and a second connecting part, the first connecting part and the second connecting part are hinged to each other to form a hinge part, the first connecting part is fitted to the inner wall of the housing, the second connecting part is fitted to the cover plate facing the inside of the housing, and the cover plate can rotate around the axis of the hinge part between the first rotation position and the second rotation position.

[0010] Furthermore, the first connecting part is welded to or detachably connected to the inner wall of the housing, and the second connecting part is welded to or detachably connected to the cover plate.

[0011] Furthermore, the access port includes a notch arranged along its own edge, the notch protruding horizontally away from the center of the access port, and the length of the notch is less than the length of the edge of the access port, the notch being used to accommodate the pivot structure or hinge structure.

[0012] Furthermore, the support structure includes a first support edge arranged opposite to the notch and / or a second support edge arranged perpendicular to the notch.

[0013] Furthermore, the second support edge is provided in two sets, the two sets of the second support edge are arranged opposite to each other, and are respectively connected to the first support edge.

[0014] Furthermore, the cover plate is also provided with a locking part, the locking part is provided with a recessed hole, and a fastener that is detachably connected to the first support side or the second support side or the housing is detachably inserted in the recessed hole; when the locking part is detachably connected to the housing, the housing is also provided with a recessed groove arranged opposite to the locking part, the recessed groove is connected to the inspection port, and the locking part is detachably located in the recessed groove.

[0015] Furthermore, the cover plate is provided with a through hole that extends through itself, the through hole being used for inserting a finger.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. In this utility model, an inspection port is located on the housing, connecting the interior of the housing to the outside. A support structure is provided on the side of the inspection port facing the interior of the housing. This support structure extends horizontally along the edge of the inspection port towards the center of the inspection port, forming a height difference with the outer surface of the housing. A cover plate is rotatably embedded in the inspection port and has a first rotation position and a second rotation position. When the cover plate is in the first rotation position, it abuts against the support structure and closes the inspection port. At this time, the upper surface of the cover plate is flush with the outer surface of the housing. When the cover plate is in the second rotation position, it separates from the support structure and opens the inspection port. This design improves the opening efficiency of the cover plate through its rotatable design and avoids the damage to the overall structure of the housing caused by traditional protruding cover plates. It significantly improves the flatness and appearance consistency of the housing surface and eliminates the risk of loss caused by disassembling the cover plate and storing it separately.

[0018] 2. In this utility model, the cover plate is rotatably connected to the inspection port via a pivot or hinge structure. This pivot or hinge structure is located inside the inspection port, flush with the cover plate, and its upper surface is flush with the outer surface of the housing. This design not only ensures smooth rotation of the cover plate between the first and second rotation positions but also avoids damage to the housing's appearance caused by the pivot or hinge structure, further enhancing the continuity of the housing surface and the overall industrial design.

[0019] 3. In this utility model, the cover plate has a through hole for inserting a finger. This design allows the user to directly insert their finger into the hole and pull the cover plate to rotate around the pivot or hinge structure, achieving quick opening without tools and significantly improving the efficiency of daily maintenance and inspection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the inspection port assembly of this utility model assembled on the housing.

[0021] Figure 2 for Figure 1 Exploded view.

[0022] Figure 3 This is a partial exploded view of the inspection port assembly of this utility model.

[0023] Figure 4 This is a cross-sectional view of the inspection port assembly of this utility model assembled on the housing.

[0024] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0025] 100, Housing; 200, Inspection port; 210, Notch; 300, First support edge; 310, Second support edge; 400, Cover plate; 410, Locking part; 411, Recessed hole; 412, Fastener; 420, Through hole; 500, Hinge structure; 510, First connecting part; 520, Second connecting part; 530, Hinge part; 600, Recessed groove. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] like Figures 1 to 4 As shown, in this embodiment, a forklift access panel assembly is provided. The forklift includes a housing 100, and the access panel assembly includes:

[0032] The access port 200 is provided on the housing 100 to connect the interior of the housing 100 with the outside. The access port 200 has a support structure on the side facing the interior of the housing 100. The support structure extends horizontally along the edge of the access port 200 toward the center of the access port 200 and forms a height difference with the outer surface of the housing 100.

[0033] A cover plate 400 is rotatably embedded in the access port 200 and has a first rotational position and a second rotational position. When the cover plate 400 is in the first rotational position, it abuts against the support structure and closes the access port 200. At this time, the upper surface of the cover plate 400 is flush with the outer surface of the housing 100. When the cover plate 400 is in the second rotational position, it separates from the support structure and opens the access port 200. This design improves the opening efficiency of the cover plate 400 through its rotatable design and avoids the damage to the overall structure of the housing 100 caused by the traditional protruding cover plate 400. It significantly improves the surface flatness and appearance consistency of the housing 100, while eliminating the risk of loss caused by disassembling the cover plate 400 and storing it separately.

[0034] Specifically, such as Figures 1 to 4 As shown, in this embodiment, the access port assembly is mounted on a forklift, which includes a housing 100 with a receiving cavity containing an oil tank. The access port assembly includes an access port 200 on the housing 100, which communicates with the receiving cavity and corresponds to the oil tank cap. This design allows users to quickly access the oil tank cap through the access port 200 for routine maintenance tasks such as refueling, filter replacement, or checking the oil lines, effectively improving the maintainability of the equipment.

[0035] In this embodiment, the access port 200 is rectangular, and its depth is adapted to the thickness of the housing 100. A support structure is provided on the side of the access port 200 facing inwards from the housing 100. This support structure extends horizontally along the edge of the access port 200 towards its center, forming a height difference with the outer surface of the housing 100. This design provides a reliable bearing surface for the cover plate 400 embedded in the access port 200, ensuring that the cover plate 400 will not sink or tilt when closed. Furthermore, the height difference design allows the cover plate 400 to accurately land in a designated position when closed, with its upper surface flush with the outer surface of the housing 100. This effectively avoids the damage to the shape of the housing 100 caused by traditional convex or concave structures, enhancing the overall aesthetics of the forklift.

[0036] In this embodiment, the access port 200 includes a notch 210 arranged along its own edge. The notch 210 protrudes horizontally away from the center of the access port 200, and the length of the notch 210 is less than the length of the edge of the access port 200. It is used to accommodate the hinge portion 530 of the pivot structure or hinge structure 500. This design provides a dedicated installation space for the pivot or hinge structure 500, which not only allows the rotating parts to be effectively hidden inside the housing 100, avoiding the impact of exposure on the flatness of the housing 100 surface and improving the appearance coordination and overall industrial design, but also simplifies the installation process of the pivot or hinge structure 500.

[0037] In this embodiment, the notch 210 is rectangular and is located on the short or long edge of the access port 200. Preferably, the notch 210 is located on the short edge of the access port 200. This design, while meeting the installation requirements of the pivot or hinge structure 500, reduces the occupation of the long-side support structure, helps maintain the overall load-bearing capacity of the cover plate 400, and avoids interference with other components.

[0038] In this embodiment, the support structure includes a first support edge 300 arranged opposite to the notch 210 and / or a second support edge 310 arranged perpendicular to the notch 210. This design increases the contact area between the support structure and the cover plate 400, effectively improving the overall load-bearing capacity, ensuring the stability and flatness of the cover plate 400 in the closed state, thereby enhancing the structural strength and reliability of the access panel assembly.

[0039] Preferably, in this embodiment, the length of the first support edge 300 is greater than or equal to the length of the short side of the access port 200. The length of the second support edge 310 is greater than or equal to the length of the long side of the access port 200. This design significantly improves the multi-directional deformation resistance and structural rigidity of the support structure by expanding its pressure-bearing area, making it particularly suitable for conditions involving frequent opening and closing or impact loads.

[0040] In this embodiment, only the first support edge 300 can be provided according to actual needs, which is suitable for light-load or unilateral rotation structures, simplifying the structure and reducing costs while meeting basic support functions. Alternatively, the first support edge 300 and the second support edge 310 can be provided simultaneously to form an "L" or "U" shaped support frame, providing multi-sided limiting and stable support for the cover plate 400, significantly enhancing the overall strength and sealing performance of the structure, and suitable for complex working conditions with heavy loads or multi-point connections.

[0041] Preferably, in this embodiment, the second support edge 310 is provided in two sets, which are arranged opposite to each other and are perpendicularly connected to the first support edge 300 respectively. This design makes the cover plate 400 more evenly stressed when closed, avoids the occurrence of local stress concentration, and thus extends the service life of the structure. It is especially suitable for working environments with frequent opening and closing or vibration loads.

[0042] In this embodiment, the shape of the cover plate 400 is adapted to the shape of the access port 200, and its size is slightly smaller than that of the access port 200, so as to ensure that the cover plate 400 can be smoothly embedded in the access port 200 and effectively close the access port 200.

[0043] In this embodiment, the cover plate 400 is rotatably embedded in the access port 200 and has a first rotation position and a second rotation position. When the cover plate 400 is in the first rotation position, it is horizontal, abuts against the support structure, and closes the access port 200. At this time, the upper surface of the cover plate 400 is flush with the outer surface of the housing 100, thereby ensuring the flatness of the overall appearance of the housing 100. When the cover plate 400 is in the second rotation position, it is vertical, separate from the support structure, and the access port 200 is fully opened, which is convenient for users to perform maintenance operations.

[0044] In this embodiment, the cover plate 400 has a through circular hole 420 that extends through it and communicates with the receiving cavity for inserting a finger. This design allows the user to directly insert their finger into the hole and pull the cover plate 400 around the pivot or hinge structure 500 to achieve quick opening without tools, significantly improving the efficiency of daily maintenance and inspection.

[0045] Preferably, the diameter of the through-hole 420 is slightly larger than the diameter of a single finger. This design, by reasonably controlling the hole size, satisfies both functionality and safety and structural integrity.

[0046] In this embodiment, the cover plate 400 is further provided with a locking part 410, which has a vertically arranged recessed hole 411. A fastener 412, which is detachably connected to the first support edge 300, the second support edge 310, or the housing 100, is detachably inserted into the recessed hole 411. When the locking part 410 is detachably connected to the housing 100, the housing 100 is also provided with a recessed groove 600 arranged opposite to the locking part 410. The recessed groove 600 communicates with the access port 200, and the locking part 410 is detachably located within the recessed groove 600. This design, through the cooperation of the locking part 410 and the fastener 412, can firmly lock the cover plate 400 within the access port 200 when it is in the first rotational position (closed state), effectively preventing accidental opening due to vibration, impact, or other external forces, and improving safety and reliability during use. Furthermore, the design of the recessed hole 411 and the recessed groove 600 ensures that the fastener 412 does not protrude from the surface of the housing 100 after installation, which not only guarantees the connection strength but also avoids damaging the overall flatness of the housing 100's appearance, thus enhancing the industrial aesthetics of the product.

[0047] In this embodiment, when the locking part 410 is detachably connected to the first support edge 300 or the second support edge 310 by fastener 412, the edge of the cover plate 400 serves as the locking part 410, and the recessed hole 411 is vertically arranged on the edge of any one of the cover plates 400.

[0048] In this embodiment, the locking part 410 is an arc-shaped protrusion that protrudes horizontally away from the center of the cover plate 400, located on the opposite side of the notch 210. This design not only improves the strength of the cover plate 400, but also facilitates the operator to quickly locate the locking position.

[0049] Preferably, in this embodiment, the fastener 412 is a screw.

[0050] In this embodiment, the cover plate 400 is rotatably connected to the access port 200 via a pivot (not shown) or a hinge structure 500. The pivot or hinge structure 500 is located inside the access port 200 and is flush with the cover plate 400, with its upper surface flush with the outer surface of the housing 100. This design not only ensures smooth rotation of the cover plate 400 between the first and second rotation positions but also avoids damage to the appearance of the housing 100 caused by the pivot or hinge structure 500, further enhancing the continuity of the housing 100 surface and the overall industrial design.

[0051] In this embodiment, when the cover plate 400 is rotatably connected to the access port 200 via a rotating shaft, both ends of the rotating shaft are rotatably inserted into one side of the access port 200, and one side of the cover plate 400 is connected to the outer wall of the rotating shaft, and can rotate around the axis of the rotating shaft between a first rotation position and a second rotation position. This design constructs a simple, stable, flexible, and aesthetically pleasing rotating connection scheme.

[0052] In this embodiment, when the cover plate 400 is rotatably connected to the access port 200 via a pivot, the hinge structure 500 includes a horizontally flush first connecting portion 510 and a second connecting portion 520. The first connecting portion 510 and the second connecting portion 520 are hinged to each other to form a hinge portion 530. The first connecting portion 510 is fitted to the inner wall of the housing 100, and the second connecting portion 520 is fitted to the side of the cover plate 400 facing the inside of the housing 100. The cover plate 400 can rotate between a first rotation position and a second rotation position around the axis of the hinge portion 530. This design increases the contact area between the cover plate 400, the hinge structure 500, and the housing 100, allowing the hinge structure 500 to better distribute pressure when subjected to external forces, avoiding local overload phenomena, thereby extending the service life of the hinge structure 500 and its related components, and enhancing durability and reliability.

[0053] In this embodiment, the hinge structure 500 is a standard component, and the first connecting part 510 and the second connecting part 520 are rectangular blocks. The first connecting part 510 is welded to or detachably connected to the inner wall of the housing 100, and the second connecting part 520 is welded to or detachably connected to the cover plate 400. Preferably, the first connecting part 510 is detachably connected to the inner wall of the housing 100 via fasteners 412, and the second connecting part 520 is detachably connected to the cover plate 400 via fasteners 412. This design not only allows the hinge structure 500 to be flexibly adjusted in installation position or angle according to different forklift models or actual installation requirements, enhancing the versatility and adaptability of the structure, but also eliminates the need to replace the entire housing 100 or cover plate 400 assembly when the hinge structure 500 is worn, deformed, or damaged. Replacement can be completed simply by removing the relevant fasteners 412, effectively reducing maintenance costs and downtime.

Claims

1. A forklift access panel assembly, the forklift comprising a housing, characterized in that, The access panel assembly includes: An access port is provided on the housing to connect the interior of the housing with the outside. A support structure is provided on the side of the access port facing the interior of the housing. The support structure extends horizontally along the edge of the access port toward the center of the access port and forms a height difference with the outer surface of the housing. A cover plate is rotatably embedded in the access port and has a first rotation position and a second rotation position. When the cover plate is in the first rotation position, it abuts against the support structure and closes the access port. At this time, the upper surface of the cover plate is flush with the outer surface of the housing. When the cover plate is in the second rotation position, it separates from the support structure and opens the access port.

2. A forklift access panel assembly according to claim 1, characterized in that, The cover plate is rotatably connected to the access port via a pivot or hinge structure. The pivot or hinge structure is located inside the access port and is flush with the cover plate. The upper surface of the pivot or hinge structure is flush with the outer surface of the housing.

3. A forklift access panel assembly according to claim 2, characterized in that, The two ends of the rotating shaft are rotatably inserted into the inspection port. One side of the cover plate is connected to the outer wall of the rotating shaft and can rotate around the axis of the rotating shaft between the first rotating position and the second rotating position.

4. A forklift access panel assembly according to claim 2, characterized in that, The hinge structure includes a horizontally flush first connecting part and a second connecting part. The first connecting part and the second connecting part are hinged to each other to form a hinge joint. The first connecting part is fitted to the inner wall of the housing. The second connecting part is fitted to the cover plate facing the inside of the housing. The cover plate can rotate around the axis of the hinge joint between the first rotation position and the second rotation position.

5. A forklift access panel assembly according to claim 4, characterized in that, The first connecting part is welded to or detachably connected to the inner wall of the housing, and the second connecting part is welded to or detachably connected to the cover plate.

6. A forklift access panel assembly according to claim 2, characterized in that, The access port includes a notch arranged along its own edge, the notch protruding horizontally away from the center of the access port, and the length of the notch is less than the length of the edge of the access port. The notch is used to accommodate the pivot structure or hinge structure.

7. A forklift access panel assembly according to claim 6, characterized in that, The support structure includes a first support side arranged opposite to the notch and / or a second support side arranged perpendicular to the notch.

8. A forklift access panel assembly according to claim 7, characterized in that, The second support edge is provided in two sets, and the two sets of the second support edge are arranged opposite to each other and are respectively connected to the first support edge.

9. A forklift access panel assembly according to claim 7, characterized in that, The cover plate is also provided with a locking part, the locking part is provided with a recessed hole, and a fastener that is detachably connected to the first support side or the second support side or the housing is detachably inserted in the recessed hole; when the locking part is detachably connected to the housing, the housing is also provided with a recessed groove arranged opposite to the locking part, the recessed groove is connected to the inspection port, and the locking part is detachably located in the recessed groove.

10. A forklift access panel assembly according to claim 1, characterized in that, The cover plate has a through hole that allows a finger to be inserted.