A connecting mechanism of a battery compartment cover plate

By designing an external connector and a limit support structure on the stacker truck, the problem of hinge space occupation was solved, enabling convenient battery replacement and stable operation, and eliminating abnormal noise.

CN224683298UActive Publication Date: 2026-08-25ANHUI HELI CO LTD
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Patent Information

Application Number
CN202521926327.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-08-25
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

The existing hinge connection between the battery cover and the battery compartment of the stacker truck takes up space, affects the efficiency of battery replacement, and is prone to causing abnormal noise.

Method used

A connection mechanism for the battery compartment cover was designed to transfer the connector from inside the battery compartment to the outside. The cover is opened and closed stably through support columns and limiting structures. A rubber sleeve is used for cushioning to avoid noise and spatial interference.

Benefits of technology

It achieves convenient battery replacement and stable cover plate, eliminates spatial interference and abnormal noise from bumps, and improves operational efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a connecting mechanism of battery compartment cover plate, including the cover plate, the both ends of cover plate are rotatedly connected with battery compartment top end through the connecting piece, the connecting piece includes the main body structure that is connected into an organic whole by horizontal section, arc section and turnover section in proper order, wherein horizontal section is fixedly connected with cover plate, and the end of turnover section is rotatedly connected with the frame through the pivot, the cover plate rotates around the pivot, realizes the opening or closing of battery compartment, the utility model shifts the connecting piece of connecting cover plate and battery compartment from the inside of battery compartment to the outside of battery compartment, does not cause the restriction of battery compartment internal space to eliminate the inconvenience when hoisting storage battery, more need not to remove the connecting piece, and the possible of the abnormal sound of cover plate on the bumpy road is avoided simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of stacker truck technology, and in particular to the connection mechanism of the battery compartment cover of an electric stacker truck. Background Technology

[0002] Stacker trucks are primarily battery-powered industrial warehousing equipment used for the vertical stacking and horizontal transport of goods. Currently, the batteries on stacker trucks are typically housed in a battery compartment on the chassis to prevent the risk of the batteries shaking, colliding, or falling during operation.

[0003] Because batteries require frequent charging for extended operation, a conveniently openable cover is typically installed at the opening of the battery compartment to facilitate battery replacement. Currently, the cover and battery compartment are generally connected by hinges, allowing for easy opening and closing. However, the hinge is installed inside the battery compartment, meaning its flipping point is inside. This requires space during flipping, which can hinder battery lifting and replacement operations. Furthermore, due to the limited space in stacker trucks, the battery compartment is only large enough to accommodate a few batteries, necessitating the removal of the cover for battery replacement, resulting in inefficiency. Utility Model Content

[0004] Based on the above-mentioned technical problems, this utility model proposes a connection mechanism for the battery compartment cover of an electric stacker truck, which facilitates battery replacement and eliminates its bumps and abnormal noises.

[0005] The specific technical solution of this utility model is as follows: A battery compartment cover connection mechanism includes a cover plate, the two ends of which are rotatably connected to the top of the battery compartment via connectors. The connectors include a main structure consisting of a horizontal section, an arc section, and a flip section connected in sequence. The horizontal section is fixedly connected to the cover plate, and the end of the flip section is rotatably connected to the vehicle frame via a pivot. The cover plate rotates around the pivot to open or close the battery compartment.

[0006] In a further embodiment, a support column is fixedly installed on the inner side wall of the top of the battery compartment. The support column is located directly below the movable end of the cover when closed and is used to support the cover. An installation bracket is fixedly installed on the vehicle frame located outside the cover to limit the opening of the cover.

[0007] In a further embodiment, the mounting bracket includes a fixing plate and a limiting plate, wherein the limiting plate is vertically fixed to the top of the fixing plate, and a limiting groove is formed on the top surface of the fixing plate.

[0008] Preferably, one end of the rotating shaft is fixed to the frame, and the other end is movably inserted through the end of the flipping section and mounted on the mounting bracket; the end of the rotating shaft is provided with an anti-detachment component to limit the rotating shaft on the mounting bracket.

[0009] More preferably, the anti-detachment component includes a locking plate sleeved on the end of the rotating shaft and fixing bolts for connecting the locking plate to the mounting bracket.

[0010] In a further embodiment, the arc segment includes an upper arc segment and a lower arc segment, wherein a clearance cavity is formed between the lower arc segment and the flipping segment; the inner wall of the flipping segment is a limiting edge, the top of the limiting edge is inclined towards the horizontal segment direction, and the angle between the limiting edge and the vertical line is 5°.

[0011] In a further embodiment, a limiting member is fixed at the bottom end of the horizontal segment, and a downward-facing slot is provided at the bottom end of the limiting member; the slot is flared with a small bottom and a large opening, and the inner sidewall of its opening end forms an angle of 6° with the vertical line.

[0012] In a further embodiment, rubber sleeves are fitted onto both the support column and the rotating shaft.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows: This utility model moves the connecting piece between the connecting cover and the battery compartment from the inside of the battery compartment to the outside of the battery compartment, which does not restrict the internal space of the battery compartment, thereby eliminating the inconvenience when hoisting the battery and eliminating the need to remove the connecting piece.

[0014] This utility model uses an installation bracket to flip and limit the opening of the cover, which facilitates the opening operation of the cover and prevents damage to the cover by hand or by the sound of the cover colliding when opening.

[0015] The cover plate is engaged with the support column by the limiting piece on the connector, thereby limiting and fixing the cover plate after it is assembled on the battery compartment. When the stacker truck travels on bumpy roads, the cover plate will make abnormal noise due to the bumps.

[0016] In addition, this utility model is equipped with rubber sleeves for cushioning at the connection between the connector and the support column and at the connection between the connector and the rotating shaft, so as to avoid the impact of vehicles driving on the cover plate on bumpy roads. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the connection between the cover plate and the connector in this utility model; Figure 2 This is a schematic diagram of the connecting component in this utility model; Figure 3 This is a schematic diagram of the frame structure of the present invention; Figure 4 This is a schematic diagram of the mounting bracket in this utility model; Figure 5 This is a schematic diagram of the assembly of the mounting bracket and locking components in this utility model; Figure 6This is a schematic diagram of the assembly of the connector, mounting bracket, and locking component in this utility model; Figure 7 This is a diagram showing the cover plate closed. Figure 8 This is a diagram showing the cover being opened.

[0018] In the diagram: Connector 1, pivot hole 11, flip section 12, limiting edge 121, lower arc section 13, upper arc section 14, horizontal section 15, limiting component 16, slot 17, pivot 2, cover plate 3, handle 4, battery compartment 5, support column 51, mounting bracket 52, fixing plate 521, limiting plate 522, limiting groove 523, frame 6, locking component 7, locking plate 71, fixing bolt 72. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] refer to Figure 1-8 This embodiment provides a battery compartment cover connection mechanism. The battery compartment 5 of the electric stacker truck is located on the upper part of the frame 6, and a cover 3 is provided at the top opening of the battery compartment 5. Specifically, both ends of the cover 3 are rotatably connected to the top of the battery compartment 5 through connectors 1. The connector 1 includes a main structure consisting of a horizontal section 15, an arc section, and a flipping section 12 connected in sequence to form an integral part (e.g., Figure 2 As shown in the figure, the horizontal section 15 is fixedly connected to the cover plate 3, and the end of the flip section 12 is rotatably connected to the vehicle frame through the rotating shaft 2; the cover plate 3 rotates around the rotating shaft 2 to open or close the battery compartment 5.

[0021] The structure of cover plate 3 is as follows Figure 1 As shown, the horizontal section 15 of the connector 1 is welded to the bottom end face of the cover plate 3 and rotates with the cover plate. A handle 4 is provided in the middle of the cover plate 3 for opening or closing the cover plate 3, which is convenient for manual operation.

[0022] like Figure 3As shown, a support column 51 is fixed to the inner sidewall of the top of the battery compartment 5. The support column 51 is located directly below the movable end of the cover plate 3 when closed and is used to support the cover plate. A mounting bracket 52 is fixed to the frame outside the cover plate 3 to limit the opening of the cover plate. Since the support column 51 is located at the edge of the battery compartment and is relatively short, it does not affect the entry and exit of the battery. In addition, since the mounting bracket 52 is located outside the battery compartment, and the arc-shaped section and the flip section 12 of the connector 1 are also located outside the battery compartment 5, they do not affect the internal space of the battery compartment, facilitating battery replacement operations.

[0023] Specific examples Figure 4 As shown, the mounting bracket 52 includes a fixing plate 521 and a limiting plate 522. The limiting plate is vertically fixed to the top of the fixing plate, and a limiting groove 523 is formed on the top surface of the fixing plate. The mounting bracket 52 is symmetrically mounted on the vehicle frame. Specifically, the fixing plate 521 is welded to the vehicle frame, and the end of the limiting plate 522 extends towards the vehicle frame. The limiting plate 522 and the limiting groove 523 are arranged side by side, wherein the limiting groove 523 is used to support the rotating shaft 2.

[0024] One end of the rotating shaft 2 is fixed to the frame, and the other end is movably inserted through the end of the tilting section 12. The end of the tilting section 12 has a rotating shaft hole 11 that matches the rotating shaft 2. After passing through the rotating shaft hole 11, the end of the rotating shaft 2 is mounted in the limiting groove 523 on the mounting bracket 52. The end of the rotating shaft is provided with an anti-detachment component 7 to limit the rotating shaft 2 on the mounting bracket 52. When the connecting piece 1 rotates around the rotating shaft 2, it prevents the rotating shaft 2 from disengaging from the limiting groove 523 due to excessive external force.

[0025] like Figure 5 , 6 As shown, the anti-detachment component 7 includes a locking plate 71 sleeved on the end of the rotating shaft 2 and a fixing bolt 72 for connecting the locking plate to the mounting bracket 52.

[0026] During assembly, the pivot hole 11 of connector 1 is fitted onto the pivot 2, and then the pivot is placed in the limiting groove 523 on the mounting bracket 52. Next, the pivot hole on the locking plate 71 is fitted onto the end of the pivot 2. Finally, the locking plate 71 is fixedly connected to the mounting bracket 52 using the fixing bolts 72. This completes the installation and connection of the cover plate 3. The closed state of the cover plate 3 is as follows: Figure 7 As shown.

[0027] like Figure 2The arc-shaped segment includes an upper arc segment 14 and a lower arc segment 13, wherein a clearance cavity is formed between the lower arc segment 13 and the flipping segment 12. After the connector 1 is installed, the mounting bracket 52 and the anti-detachment component 7 are both located within the clearance cavity, which will not affect the rotation of the connector 1. The inner wall of the flipping segment 12 is a limiting edge 121, the top of which is inclined towards the horizontal segment 15, and the angle between the limiting edge 121 and the vertical line is 5°, making the opening state of the cover plate 3 controllable. When the cover plate 3 is opened and flipped at a certain angle, the flipping segment 12 of the connector 1 contacts the limiting plate 522 and limits it, that is, the limiting edge 121 contacts the outer wall of the limiting plate 522 and limits it, so that the cover plate 3 is opened to the correct position (e.g., Figure 8 (As shown).

[0028] like Figure 2 As shown, a limiting member 16 is fixed to the bottom end of the horizontal segment 15. The bottom end of the limiting member 16 has a downward-opening slot 17. The slot 17 is flared, with a small bottom and a large opening, and the inner wall of its opening end forms a 6° angle with the vertical line. When the cover plate 3 is closed, the horizontal segment 15 of the connector 1 engages with the support column 51 through the limiting member 16, thus supporting the opening end of the cover plate. Specifically, the flared slot 17 engages with the support column 51. The inner wall of the opening end of the slot 17 forms a 6° angle with the vertical line, serving a guiding function. If the angle is greater than 6°, it will not provide guidance; if the angle is less than 6°, the connection or separation operation with the support column will be laborious and inconvenient. The bottom end of the slot is an arc-shaped structure that matches the support column 51, improving the smoothness and convenience of connection or separation.

[0029] In a further embodiment, rubber sleeves are fitted onto both the support column 51 and the rotating shaft 2. This isolates the cover plate 3 from components such as the vehicle frame through the rubber sleeves. When the vehicle is in motion, the rubber sleeves act as a buffer and isolate the cover plate, thereby eliminating the noise caused by the cover plate during vehicle operation.

[0030] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0031] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A connecting mechanism for a battery compartment cover, comprising a cover (3), characterized in that: The two ends of the cover plate (3) are rotatably connected to the top of the battery compartment (5) through the connector (1). The connector (1) includes a main structure consisting of a horizontal section (15), an arc section and a flip section (12) connected in sequence. The horizontal section (15) is fixedly connected to the cover plate (3), and the end of the flip section (12) is rotatably connected to the vehicle frame through the rotating shaft (2). The cover plate rotates around the rotating shaft to open or close the battery compartment.

2. The connecting mechanism according to claim 1, characterized in that: A support column (51) is fixedly provided on the inner side wall of the top of the battery compartment (5). The support column (51) is located directly below the movable end of the cover plate (3) when closed and is used to support the cover plate. An installation bracket (52) is fixedly provided on the frame outside the cover plate (3) to limit the opening of the cover plate.

3. The connecting mechanism according to claim 2, characterized in that: The mounting bracket (52) includes a fixing plate (521) and a limiting plate (522). The limiting plate is vertically fixed to the top of the fixing plate, and a limiting groove (523) is formed on the top surface of the fixing plate.

4. The connecting mechanism according to claim 2, characterized in that: One end of the rotating shaft (2) is fixed on the frame, and the other end is movably inserted through the end of the flip section (12) and mounted on the mounting bracket (52); the end of the rotating shaft is provided with an anti-detachment component (7) to limit the rotating shaft (2) on the mounting bracket (52).

5. The connecting mechanism according to claim 4, characterized in that: The anti-detachment component (7) includes a locking plate (71) sleeved on the end of the rotating shaft (2) and a fixing bolt (72) for connecting the locking plate to the mounting bracket (52).

6. The connecting mechanism according to claim 1, characterized in that: The arc segment includes an upper arc segment (14) and a lower arc segment (13), wherein a clearance cavity is formed between the lower arc segment (13) and the flip segment (12); the inner wall of the flip segment (12) is a limiting edge (121), the top of the limiting edge is inclined towards the horizontal segment (15), and the angle between the limiting edge (121) and the vertical line is 5°.

7. The connecting mechanism according to claim 1, characterized in that: The bottom end of the horizontal section (15) is fixed with a limiting member (16), and the bottom end of the limiting member (16) is provided with a downward-facing slot (17); the slot (17) is a trumpet shape with a small bottom and a large opening, and the inner side wall of its opening end forms an angle of 6° with the vertical line.

8. The connecting mechanism according to claim 2, characterized in that: Rubber sleeves are fitted on both the support column (51) and the rotating shaft (2).