Battery fixation device for a forklift truck

By designing a battery fixing device with a support frame and locking structure, the battery replacement operation is simplified, stability and safety are improved, and it is adaptable to different forklift models and battery specifications, solving the problem of cumbersome operation of traditional fixing methods.

CN224493641UActive Publication Date: 2026-07-14NINGBO RUYI JOINT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO RUYI JOINT CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional forklift battery mounting methods are cumbersome, resulting in low battery replacement efficiency and insufficient stability.

Method used

A battery fixing device including a support frame and a locking structure is designed. The support frame is provided with a receiving groove and a limiting groove. The locking structure achieves easy fixing and stable locking of the battery through rotatable limiting and locking parts. The operation is simplified to two actions: lifting and rotating. The stability is enhanced by the locking parts.

Benefits of technology

It significantly improves the efficiency of battery replacement operations, ensures the stability and safety of batteries under complex working conditions, and has good modularity and adaptability, making it suitable for different forklift models and battery specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a forklift technical field discloses a battery fixing device for forklift, including support frame, its being equipped with the accommodation groove for placing battery on, and the accommodation groove has first opening, and support frame is equipped with the limit slot on, locking structure, it includes rotatably being equipped with the first limit piece on support frame, and the first limit piece includes the limit portion and fixed portion of perpendicular connection, and the limit portion extends to first opening, and the fixed portion is movably clamped and located in the limit slot, and has first mobile position and second mobile position, when fixed portion is located first mobile position, can limit the rotation of first limit piece, makes the limit portion can limit battery and pass first opening in and out accommodation groove, when fixed portion is located second mobile position, can allow first limit piece to rotate, makes the limit portion cancel the limit of first opening, and makes battery can pass first opening in and out accommodation groove. The utility model's advantage lies in, easy operation and high stability.
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Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a battery fixing device for forklifts. Background Technology

[0002] Forklifts are widely used as an important material handling tool in modern logistics and industrial material handling. With the continuous development of electric forklifts, the importance of batteries is becoming increasingly prominent. To facilitate battery replacement and maintenance and ensure the safe operation of forklifts, higher requirements are placed on battery mounting methods. Currently, traditional forklift battery mounting methods mostly use bolt fastening. Although this method has good stability, its operation is relatively cumbersome, resulting in low battery replacement efficiency. 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 battery fixing device for forklifts that is easy to operate and highly stable.

[0004] The technical solution adopted by this utility model to solve its technical problem is to provide a battery fixing device for forklifts, comprising:

[0005] A support frame is provided with a receiving slot for placing a battery, the receiving slot having a first opening for the battery to enter and exit, and the support frame is provided with a limiting slot located outside the receiving slot;

[0006] A locking structure includes a first limiting member rotatably mounted on the support frame. The first limiting member includes a limiting portion and a fixing portion vertically connected. The limiting portion extends to the first opening, and the fixing portion is movably engaged in the limiting groove, having a first moving position and a second moving position. When the fixing portion is in the first moving position, it restricts the rotation of the first limiting member, allowing the limiting portion to restrict the battery from entering or exiting the receiving groove through the first opening. When the fixing portion is in the second moving position, it allows the first limiting member to rotate, releasing the limiting portion from restricting the first opening and allowing the battery to enter or exit the receiving groove through the first opening.

[0007] In the aforementioned battery fixing device for a forklift, the locking structure includes a locking member, the support frame is provided with a first positioning hole, and the fixing part is provided with a first fixing hole corresponding to the first positioning hole. The locking member is detachably inserted into the first fixing hole and the first positioning hole in sequence, and can restrict the movement of the fixing part.

[0008] In the aforementioned battery fixing device for a forklift, the locking structure includes a connector that is detachably connected to the support frame, and the first limiting member is rotatably connected to the connector.

[0009] In the aforementioned battery fixing device for a forklift, the connector includes a positioning post having a movable hole extending through itself along its length, and the first limiting member is provided with a pin, which is rotatably inserted into the movable hole.

[0010] In the aforementioned battery fixing device for a forklift, the pin includes a vertically connected upper end and a lower end, the diameter of the upper end is larger than the diameter of the movable hole, the diameter of the lower end is smaller than the diameter of the movable hole, and the pin can move along the length direction of the movable hole.

[0011] In the aforementioned battery fixing device for a forklift, the support frame is provided with a second positioning hole, the connector is provided with a second fixing hole corresponding to the second positioning hole, and the fastener is detachably inserted into the second fixing hole and the second positioning hole in sequence to fix the locking structure on the support frame.

[0012] In the aforementioned battery fixing device for a forklift, the support frame is provided with a second limiting member. One end of the second limiting member is connected to the side wall of the support frame, and the other end extends horizontally and then bends upward to form the limiting groove.

[0013] In the aforementioned battery securing device for a forklift, the receiving groove further has a second opening perpendicular to the first opening, the second opening extending along the length of the receiving groove, and the battery can extend out of the receiving groove through the second opening.

[0014] In the aforementioned battery fixing device for a forklift, the bottom of the receiving groove is rotatably provided with a plurality of rollers, each roller having one side protruding into the receiving groove and the other side protruding out of the receiving groove, and the plurality of rollers are arranged at equal intervals along the length direction of the receiving groove.

[0015] In the aforementioned battery fixing device for a forklift, the bottom of the support frame is further provided with at least two limiting blocks, which are arranged in a mirror image along the center line of the support frame; when the battery fixing device is mounted on the forklift, the two limiting blocks respectively abut against the forklift and can restrict the movement of the battery fixing device.

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

[0017] 1. In this utility model, a limiting groove is provided on the support frame outside the receiving groove. The locking structure includes a first limiting member rotatably mounted on the support frame. The first limiting member includes a vertically connected limiting part and a fixing part. The limiting part extends to the first opening, and the fixing part is movably engaged in the limiting groove, having a first moving position and a second moving position. When the fixing part is in the first moving position, it restricts the rotation of the first limiting member, allowing the limiting part to restrict the battery from entering and exiting the receiving groove through the first opening. When the fixing part is in the second moving position, it allows the first limiting member to rotate, releasing the limiting part from restricting the first opening and allowing the battery to enter and exit the receiving groove through the first opening. This design simplifies the battery replacement operation to two actions: lifting and rotating, significantly improving operational efficiency and eliminating the problems of cumbersome operation and high maintenance costs associated with traditional bolt fastening methods.

[0018] 2. In this utility model, the locking structure includes a locking member, a first positioning hole on the support frame, and a first fixing hole corresponding to the first positioning hole on the fixing part. The locking member is detachably inserted into the first fixing hole and the first positioning hole in sequence, and can restrict the movement of the fixing part. This design further enhances the stability of the first limiting member in the locked state, preventing it from shifting due to vibration or impact, thereby improving the reliability and safety of the entire locking structure and ensuring that the battery remains in a stable and fixed state under complex operating conditions.

[0019] 3. In this utility model, the locking structure includes a connector, which is detachably connected to the support frame, and the first limiting member is rotatably connected to the connector. This design gives the locking structure good modularity, facilitating installation, disassembly, and subsequent maintenance. It also improves the versatility of the device, enabling it to adapt to different forklift models and battery specifications, expanding its application range and enhancing the product's market adaptability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a battery fixing device for a forklift according to the present invention.

[0021] Figure 2 This is an exploded view of a battery fixing device for a forklift according to the present invention.

[0022] Figure 3 for Figure 1 A structural diagram from another perspective.

[0023] Figure 4 This is a schematic diagram of a battery in a fixed state.

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

[0025] 100. Support frame; 101. First opening; 102. Second opening; 110. Receiving groove; 120. First positioning hole; 130. Second positioning hole; 200. First limiting member; 210. Limiting part; 220. Fixing part; 221. First fixing hole; 230. Pin; 300. Locking member; 310. Screw part; 320. Knob part; 400. Connecting member; 410. Connecting part; 411. Second fixing hole; 420. Positioning post; 421. Movable hole; 500. Second limiting member; 510. Limiting groove; 600. Roller; 700. Limiting block; 800. Battery. 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 4As shown, in this embodiment, a battery fixing device for a forklift includes:

[0032] The support frame 100 has a receiving groove 110 for placing the battery 800. The receiving groove 110 has a first opening 101 for the battery 800 to enter and exit, and the support frame 100 has a limiting groove 510 located outside the receiving groove 110.

[0033] The locking structure includes a first limiting member 200 rotatably mounted on a support frame 100. The first limiting member 200 includes a limiting part 210 and a fixing part 220 vertically connected. The limiting part 210 extends to the first opening 101, and the fixing part 220 is movably engaged in the limiting groove 510 and has a first moving position and a second moving position. When the fixing part 220 is in the first moving position, it can restrict the rotation of the first limiting member 200, so that the limiting part 210 can restrict the battery 800 from entering and exiting the receiving groove 110 through the first opening 101. When the fixing part 220 is in the second moving position, it can allow the first limiting member 200 to rotate, so that the limiting part 210 releases the limiting of the first opening 101 and allows the battery 800 to enter and exit the receiving groove 110 through the first opening 101. This design simplifies the battery replacement operation to just two actions: lifting and rotating. This significantly improves operational efficiency and eliminates the problems of cumbersome operation and high maintenance costs associated with traditional bolt fastening methods.

[0034] like Figures 1 to 4 As shown, this embodiment provides a battery fixing device for forklifts, mainly used for the quick installation and stable fixing of forklift batteries 800. The battery fixing device includes a support frame 100 and a locking structure. The support frame 100 serves as the load-bearing component of the entire device, supporting the weight of the battery 800 and providing a foundation for its installation and positioning. The locking structure is mounted on the support frame 100 to limit and lock the battery 800, ensuring that it does not loosen or fall off during forklift operation.

[0035] In this embodiment, the support frame 100 has a rectangular structure, and a rectangular receiving groove 110 formed by a downward indentation along the height direction is provided on it to accommodate the forklift battery 800. The receiving groove 110 has a first opening 101 and a second opening 102. The first opening 101 is a vertically arranged rectangular structure located on one side of the short side of the receiving groove 110, serving as the main passage for the battery 800 to enter and exit. After the battery 800 is inserted into the receiving groove 110 through the first opening 101, it can be limited and fixed by a locking structure to prevent it from shifting or falling off during forklift operation.

[0036] Furthermore, a second opening 102 is located at the top of the receiving groove 110 and is perpendicular to the first opening 101. The second opening 102 extends along the length of the receiving groove 110, and the battery 800 can extend out of the receiving groove 110 through the second opening 102, thereby facilitating identification, connection, or automated battery swapping operations by operators. This design not only improves the functional compatibility of the battery 800 after installation but also provides a structural basis for achieving rapid replacement and automated maintenance.

[0037] In this embodiment, a plurality of rollers 600 are rotatably provided at the bottom of the receiving groove 110. One side of each roller 600 protrudes from the bottom to the top inside the receiving groove 110 to support the battery 800 and reduce its frictional resistance during sliding; the other side protrudes from the top to the bottom outside the receiving groove 110 to facilitate the installation, positioning, and subsequent maintenance and replacement of the roller 600. This roller 600 structure design not only improves the smoothness of inserting and removing the battery 800, but also effectively protects the battery 800 casing from scratches and damage.

[0038] Furthermore, multiple rollers 600 are symmetrically distributed in two rows along the width direction of the receiving groove 110, and each row of rollers 600 is equidistantly arranged along the length direction of the receiving groove 110 to achieve uniform support for the bottom of the battery 800 and prevent tilting or jamming caused by uneven force. This design not only improves the stability of the battery 800 during sliding, but also helps to extend the service life of the rollers 600 and the battery 800 casing.

[0039] In this embodiment, the bottom of the support frame 100 is also provided with at least two limiting blocks 700. The limiting blocks 700 abut against the corresponding parts of the forklift chassis or the mounting platform, thereby restricting the movement of the battery fixing device along the arrangement direction of the limiting blocks 700, preventing it from shifting laterally or shaking during operation, and thus improving the installation stability and safety of the entire device on the forklift.

[0040] Furthermore, four limit blocks 700 are provided in total, divided into two groups of two, and all are distributed in a mirror-symmetrical manner with respect to the center line of the support frame 100. This design further enhances the connection rigidity and vibration resistance between the battery fixing device and the forklift, effectively preventing loosening or displacement of the device due to vehicle vibration or impact loads.

[0041] In this embodiment, the support frame 100 is provided with a second limiting member 500. One end of the second limiting member 500 is connected to the side wall of the support frame 100, and the other end first extends outward in the horizontal direction, and then bends upward, thereby cooperating with the support frame 100 to form a U-shaped limiting groove 510. The limiting groove 510 is used to guide and limit the fixing part 220 of the first limiting member 200, so that it can move smoothly in the vertical direction within the limiting groove 510, and effectively restrict the rotational freedom of the first limiting member 200 when it reaches a specific position, thereby ensuring the stability and reliability of the locking structure in the locked state.

[0042] Preferably, the second limiting member 500 is a sheet metal part with good processing performance and structural strength. It is fixedly connected to the support frame 100 by welding, which ensures the overall rigidity of the structure and the reliability of the connection, while facilitating manufacturing and assembly, reducing production costs and improving product consistency.

[0043] Furthermore, the limiting groove 510 is disposed outside the receiving groove 110 and located below the fixing part 220 of the first limiting member 200, for guiding and limiting the vertical movement of the fixing part 220. This arrangement not only avoids interference with the battery 800 installation space, but also facilitates the operation and maintenance of the locking structure.

[0044] In this embodiment, the locking structure includes a first limiting member 200 rotatably mounted on the support frame 100. The first limiting member 200 has an L-shaped structure and includes a limiting part 210 and a fixing part 220 connected vertically. The limiting part 210 is a rectangular block structure that extends to the first opening 101 of the receiving groove 110 to block the entry and exit path of the battery 800. The fixing part 220 is movably engaged in the limiting groove 510 in a vertical direction and has a first moving position and a second moving position. When the fixing part 220 is in the first moving position, the limiting member is locked by the limiting groove 510 and cannot rotate. At this time, the limiting part 210 is located at the first opening 101, which can effectively restrict the battery 800 from entering or leaving the receiving groove 110 through the first opening 101. When the fixing part 220 moves down to the second moving position, the limiting member can rotate freely on the support frame 100, thereby removing the limiting part 210 from the first opening 101, releasing the limiting effect on the battery 800, and facilitating the insertion or removal of the battery 800.

[0045] Furthermore, the first moving position is the locked position, that is, the position when the fixing part 220 is inside the limiting groove 510 and tightly abuts against the inner wall of the limiting groove 510. At this time, the first limiting member 200 is in a stable state and cannot rotate freely. Specifically, the projection of the limiting part 210 along the moving direction of the battery 800 is located within the range of the first opening 101, thereby effectively blocking the first opening 101 and preventing the battery 800 from entering or leaving the receiving groove 110 through the first opening 101. In this locked state, the limiting part 210 forms a physical block for the battery 800, ensuring that it will not shift or slip out due to vibration or other external loads during forklift operation, thus achieving reliable fixation of the battery 800 and improving the safety and stability of the device.

[0046] Furthermore, the second moving position is the unlocked position, which is the position when the fixing part 220 moves upward and disengages from the limiting groove 510 (i.e., it is located outside the limiting groove 510). At this time, the first limiting member 200 can rotate freely on the support frame 100, and the operator can rotate the limiting part 210 to a position that forms a 90° angle with the first opening 101, so that it completely avoids the first opening 101 and no longer obstructs the battery 800. In this unlocked state, the battery 800 can be smoothly inserted or removed through the first opening 101, and the entire replacement process can be completed without the aid of tools, which greatly simplifies the operation process and improves the battery replacement efficiency. It is particularly suitable for electric forklift operation scenarios that require frequent battery replacements of the battery 800.

[0047] Furthermore, the fixing part 220 of the first limiting member 200 is provided with a vertically arranged pin 230 on the side near the connector 400. The pin 230 is rotatably inserted into the movable hole 421 of the positioning post 420, thereby realizing the rotatable connection between the first limiting member 200 and the support frame 100, so that the first limiting member 200 can achieve stable rotation on the support frame 100 with the axis of the pin 230 as the rotation center.

[0048] Furthermore, the pin 230 includes a vertically connected upper end and a lower end. The diameter of the upper end is larger than the diameter of the movable hole 421, which is used to form an axial limit to prevent the pin 230 from falling downward or moving excessively during use, thereby ensuring the stability and reliability of the connection between the first limiting member 200 and the connecting member 400. The diameter of the lower end is smaller than the diameter of the movable hole 421, and the pin 230 can move along the length direction of the movable hole 421, so that the operator can apply force to the fixing part 220 in the vertical direction, causing it to move up and down within the limiting groove 510, and switch between the first moving position and the second moving position.

[0049] To further improve the stability of the first limiting member 200 in the locked state, in this embodiment, the locking structure includes a locking member 300. The support frame 100 has a first positioning hole 120, and the fixing part 220 has a first fixing hole 221 corresponding to the first positioning hole 120. The locking member 300 is detachably inserted into the first fixing hole 221 and the first positioning hole 120 in sequence, and can restrict the movement of the fixing part 220. This design not only enhances the stability of the first limiting member 200 in the locked state, but also effectively improves the reliability and safety of the entire locking structure under complex working conditions, ensuring that the battery 800 is always in a stable and fixed state, avoiding loosening or falling off due to external factors such as vibration and bumps.

[0050] Furthermore, the first positioning hole 120 is a waist-shaped hole that penetrates the side wall of the support frame 100 and communicates with the interior of the receiving groove 110. The first fixing hole 221 is a circular through hole that penetrates the fixing part 220. The locking member 300 includes a screw part 310 and a knob part 320. The screw part 310 is horizontally inserted into the first fixing hole 221 and the first positioning hole 120 in sequence, and cooperates with the fixing nut (not shown in the figure) to achieve locking. The knob part 320 is located outside the first fixing hole 221, and its diameter is larger than that of the first fixing hole 221 to prevent the locking member 300 from completely protruding and to facilitate manual rotation operation. This design allows the operator to complete the locking or releasing action without additional tools, significantly improving the convenience of operation and work efficiency.

[0051] In this embodiment, the locking structure includes a connector 400, which is detachably connected to the support frame 100, for example, by fasteners or buckles. The first limiting member 200 is rotatably connected to the connector 400, thereby enabling switching control of the battery 800's entry and exit paths. This modular design not only improves the maintainability and replaceability of the locking structure but also enhances the device's versatility and adaptability, allowing for flexible adjustment of the installation method according to different forklift models and battery 800 specifications, thus expanding the product's application range.

[0052] Furthermore, the connector 400 includes a connecting portion 410 and a positioning post 420. The connecting portion 410 has a rectangular plate-like structure and is detachably and securely connected to the support frame 100 via fasteners (such as bolts or screws), facilitating installation, disassembly, and replacement, thus enhancing the modularity and versatility of the locking structure. The positioning post 420 is vertically positioned on the side of the connecting portion 410 near the fixing portion 220 and has a through-hole 421 extending along its length for engaging with a pin 230 on the first limiting member 200.

[0053] Furthermore, the support frame 100 is provided with a second positioning hole 130, and the connector 400 is provided with a second fixing hole 411 corresponding to the second positioning hole 130. Fasteners (not shown in the figure) are detachably inserted horizontally into the second fixing hole 411 and the second positioning hole 130 in sequence to fix the locking structure on the support frame 100.

[0054] Preferably, the second positioning hole 130 is a threaded hole, and the second fixing hole 411 is a through hole, with two holes provided. Standard bolts or countersunk screws are used as fasteners to ensure a secure connection without affecting the overall structural flatness. This design not only improves the reliability of the connection between the connector 400 and the support frame 100, but also facilitates flexible adjustment of the locking structure's installation position according to actual usage requirements, further enhancing the device's adaptability and maintainability.

Claims

1. A battery securing device for a forklift, characterized in that, include: A support frame is provided with a receiving slot for placing a battery, the receiving slot having a first opening for the battery to enter and exit, and the support frame is provided with a limiting slot located outside the receiving slot; A locking structure includes a first limiting member rotatably mounted on the support frame. The first limiting member includes a limiting portion and a fixing portion vertically connected. The limiting portion extends to the first opening, and the fixing portion is movably engaged in the limiting groove, having a first moving position and a second moving position. When the fixing portion is in the first moving position, it restricts the rotation of the first limiting member, allowing the limiting portion to restrict the battery from entering or exiting the receiving groove through the first opening. When the fixing portion is in the second moving position, it allows the first limiting member to rotate, releasing the limiting portion from restricting the first opening and allowing the battery to enter or exit the receiving groove through the first opening.

2. The battery fixing device for a forklift according to claim 1, characterized in that, The locking structure includes a locking member, the support frame is provided with a first positioning hole, and the fixing part is provided with a first fixing hole corresponding to the first positioning hole. The locking member can be detachably inserted into the first fixing hole and the first positioning hole in sequence, and can restrict the movement of the fixing part.

3. The battery fixing device for a forklift according to claim 1, characterized in that, The locking structure includes a connector that is detachably connected to the support frame, and the first limiting member is rotatably connected to the connector.

4. A battery fixing device for a forklift according to claim 3, characterized in that, The connector includes a positioning post with a movable hole extending through itself along its length. The first limiting member is provided with a pin, which is rotatably inserted into the movable hole.

5. A battery fixing device for a forklift according to claim 4, characterized in that, The pin includes a vertically connected upper end and a lower end. The diameter of the upper end is larger than the diameter of the movable hole, and the diameter of the lower end is smaller than the diameter of the movable hole. The pin can move along the length of the movable hole.

6. A battery fixing device for a forklift according to claim 3, characterized in that, The support frame is provided with a second positioning hole, and the connector is provided with a second fixing hole corresponding to the second positioning hole. The fasteners are detachably inserted into the second fixing hole and the second positioning hole in sequence to fix the locking structure on the support frame.

7. A battery fixing device for a forklift according to claim 2, characterized in that, The support frame is provided with a second limiting member. One end of the second limiting member is connected to the side wall of the support frame, and the other end extends horizontally and then bends upward to form the limiting groove.

8. A battery fixing device for a forklift according to claim 1, characterized in that, The receiving groove also has a second opening perpendicular to the first opening, the second opening extending along the length direction of the receiving groove, and the battery can extend out of the receiving groove through the second opening.

9. A battery fixing device for a forklift according to claim 8, characterized in that, The bottom of the receiving groove is rotatably provided with multiple rollers, each roller protruding from the receiving groove on one side and from the receiving groove on the other side, and the multiple rollers are equidistantly arranged along the length direction of the receiving groove.

10. A battery fixing device for a forklift according to claim 1, characterized in that, The bottom of the support frame is also provided with at least two limiting blocks, which are arranged in a mirror image along the center line of the support frame. When the battery fixing device is mounted on a forklift, the two limiting blocks abut against the forklift and can restrict the movement of the battery fixing device.