Anti-rollover structure of multifunctional electric carrying forklift

By designing an anti-tipping structure for a multi-functional electric pallet truck, the problem of existing devices affecting the forward movement of the forklift when goods are placed on both sides is solved, achieving stable fixing and efficient loading of goods.

CN224147671UActive Publication Date: 2026-04-21EWAY INTELLIGENT TECH (CHANGZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
EWAY INTELLIGENT TECH (CHANGZHOU) CO LTD
Filing Date
2025-04-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing anti-tipping devices on electric forklifts affect the forklift's forward movement when goods are placed on both sides, resulting in a decrease in loading efficiency.

Method used

A multi-functional electric pallet truck anti-tipping structure was designed, including a mounting frame, forks, an anti-tipping mechanism, and an adjustment mechanism. By adjusting the fork spacing and the flip angle of the movable plate, the goods can be stably fixed and prevented from tipping over.

Benefits of technology

It improves cargo loading efficiency, avoids the impact of anti-tipping devices on forklift movement, and achieves more efficient material handling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-rollover structure of a multifunctional electric carrying forklift, which relates to the technical field of electric forklifts and comprises a mounting frame and an anti-rollover mechanism fixed on the mounting frame, two forks are slidably connected onto the mounting frame, a first adjusting mechanism for adjusting the distance between the two forks is arranged on the mounting frame, and a second adjusting mechanism for adjusting the distance between the two forks is arranged on the mounting frame. The distance between the two pallet forks is adjusted through the first adjusting mechanism, goods on the pallet forks are limited and fixed in an auxiliary mode through the two movable plates, the rollover prevention effect is achieved, the distance value between the two sliding seats is adjusted under the action of the second adjusting mechanism, the distance between the two movable plates is adjusted according to the size value of the goods, and therefore the rollover prevention effect is achieved. The adjusting screw is rotated to drive one end of the blocking frame to slide away from the movable plate, so that the blocking effect of the blocking frame on the sliding seat is relieved, the movable plate is turned to be parallel to the mounting frame, and normal loading of goods is prevented from being affected by the movable plate.
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Description

Technical Field

[0001] This utility model relates to the field of electric forklift technology, specifically to an anti-tipping structure for a multi-functional electric pallet forklift. Background Technology

[0002] Industrial vehicles are an important branch of engineering machinery. Their main products include forklifts, tractors, stackers, loaders, and AGVs (automated guided vehicles). They are widely used in various sectors of the national economy and are important equipment for logistics handling and loading / unloading. Among them, electric forklifts play a very important role in the logistics system of enterprises and are the main force in material handling equipment.

[0003] Chinese Patent Publication No. CN221662542U discloses an anti-tipping device for an electric forklift, including a forklift body, an operating lever on the top of the forklift body, four anti-tipping hydraulic support rods fixedly installed on the bottom of the forklift body, a forklift sliding plate fixedly installed on the outer surface of the forklift body, two forklift frames on the left outer surface of the forklift sliding plate, and several casters on the bottom of both the forklift body and the forklift frames.

[0004] However, the inventor of the above-mentioned device believes that there are certain defects. The anti-tipping plate in the above-mentioned device can only be adjusted left and right. When there are goods on both sides of the goods, the anti-tipping plate will affect the forward movement of the forklift, thereby affecting the loading efficiency of the goods. Therefore, this utility model provides a multi-functional electric pallet forklift anti-tipping structure. Utility Model Content

[0005] The purpose of this invention is to provide a multi-functional electric pallet truck anti-tipping structure to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional electric pallet truck anti-tipping structure, including a mounting frame and an anti-tipping mechanism fixed on the mounting frame. Two forks are slidably connected to the mounting frame, and a first adjustment mechanism for adjusting the distance between the two forks is provided on the mounting frame. The anti-tipping mechanism includes a fixed frame fixed on the mounting frame, and sliding seats are slidably connected to both sides of the fixed frame. A mounting groove is opened on one side of the sliding seat, and a movable plate is hinged inside the mounting groove through a pin. A second adjustment mechanism for adjusting the distance between the two sliding seats is provided on the fixed frame. A blocking frame for restricting the movable plate from flipping outward is slidably connected to the sliding seat. A connecting frame is fixedly connected to the sliding seat, and an adjusting screw is threadedly connected to the connecting frame. One end of the adjusting screw is rotatably connected to the blocking frame.

[0007] Preferably, an I-beam slide rail is fixedly connected to the mounting frame, and a first sliding block is fixedly connected to the fork. The first sliding block is slidably connected to the I-beam slide rail, and the fork is stably slidable on the mounting frame by the first sliding block and the I-beam slide rail.

[0008] Preferably, the first adjustment mechanism includes a bidirectional screw that rotates on the mounting bracket, and a second sliding block is fixedly connected to the fork. The second sliding block is threadedly connected to the bidirectional screw. By driving the bidirectional screw to rotate, the two forks are driven to move closer or further apart under the action of the second sliding block, thereby adjusting the distance between the two forks.

[0009] Preferably, a connecting slide rod is fixedly connected to one side of the sliding seat, and one end of the connecting slide rod is slidably connected to one side of the fixed frame. Under the action of the connecting slide rod, the sliding seat slides stably on the side of the fixed frame.

[0010] Preferably, the second adjustment mechanism includes an elliptical wheel that rotates on a fixed frame. Both ends of the elliptical wheel are rotatably connected to connecting rods. The other ends of the two connecting rods are hinged to one side of the two sliding seats by pins. By driving the elliptical wheel to rotate, the two sliding seats are driven to move closer to each other or further away from each other under the connecting action of the connecting rods.

[0011] Preferably, a rotating rod is rotatably connected to the fixed frame, the elliptical wheel is fixedly connected to the rotating rod, one end of the rotating rod extends to the back of the mounting frame, and a connecting gear is fixedly connected to the other end of the rotating rod. A rack is slidably connected to the back of the mounting frame, and the rack meshes with the connecting gear. By driving the rack to slide on the mounting frame, the meshing action of the rack and the connecting gear drives the rotating rod to rotate, thereby causing the elliptical wheel to rotate.

[0012] Preferably, an electric push rod is fixedly connected to the back of the mounting bracket, and the telescopic end of the electric push rod is fixedly connected to the rack rod. The rack rod is pushed to slide on the mounting bracket by activating the electric push rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application uses a first adjusting mechanism to adjust the distance between the two forks, and two movable plates to assist in limiting and fixing the goods on the forks to achieve the effect of preventing tipping. The second adjusting mechanism adjusts the distance between the two sliding seats. The distance between the two movable plates is adjusted according to the size of the goods. By rotating the adjusting screw, one end of the blocking frame is moved away from the movable plate to release the blocking effect of the blocking frame on the sliding seat, so that the movable plate is flipped to a state parallel to the mounting frame, so as to prevent the movable plate from affecting the normal loading of goods.

[0015] 2. This application uses an electric push rod to drive the rack rod to rotate on the mounting bracket. The meshing action of the rack rod and the connecting gear drives the elliptical wheel to rotate. Under the connecting action of the connecting rod, the two sliding seats move closer to each other or further apart. Attached Figure Description

[0016] Figure 1 This is a perspective view of the anti-tipping structure of the multi-functional electric pallet forklift of this utility model;

[0017] Figure 2 This utility model relates to an anti-tipping structure for a multi-functional electric pallet forklift. Figure 1 Enlarged view at point A;

[0018] Figure 3 This is a perspective view of the anti-tipping mechanism of the multi-functional electric pallet truck anti-tipping structure of this utility model;

[0019] Figure 4 This is a perspective view of the sliding seat of the anti-tipping structure of the multifunctional electric pallet forklift of this utility model;

[0020] Figure 5 This is a three-dimensional view of the back of the mounting bracket for the anti-tipping structure of the multi-functional electric pallet forklift of this utility model.

[0021] The following are the labels in the diagram: 1. Mounting bracket; 2. Fork; 21. First sliding block; 22. Second sliding block; 3. Fixed bracket; 31. Rotating rod; 32. Elliptical wheel; 34. Connecting rod; 35. Connecting gear; 4. Sliding seat; 41. Connecting slide rod; 5. Movable plate; 51. Blocking bracket; 52. Connecting bracket; 53. Adjusting screw; 6. I-beam slide; 7. Double-acting screw; 8. Electric push rod; 81. Rack and pinion. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The anti-tipping structure of the multi-functional electric pallet truck includes a mounting frame 1 and an anti-tipping mechanism fixed on the mounting frame 1. Two forks 2 are slidably connected to the mounting frame 1, and an I-beam slide rail 6 is fixedly connected to the mounting frame 1. A first sliding block 21 is fixedly connected to the fork 2 and is slidably connected to the I-beam slide rail 6. The I-beam slide rail 6 and the first sliding block 21 are used to support the forks 2 to slide on the mounting frame 1.

[0024] Please refer to it again. Figure 1 and Figure 2 The mounting frame 1 is provided with a first adjustment mechanism for adjusting the distance between the two forks 2. The first adjustment mechanism includes a bidirectional screw 7 that rotates on the mounting frame 1. A second sliding block 22 is fixedly connected to the fork 2. The second sliding block 22 is threadedly connected to the bidirectional screw 7. The bidirectional screw 7 has two external threads with opposite directions. By driving the bidirectional screw 7 to rotate, the two second sliding blocks 22 are moved closer or further apart, thereby adjusting the distance between the two forks 2.

[0025] Please refer to it again. Figure 1 , Figure 3 and Figure 4 The anti-tipping mechanism includes a fixed frame 3 fixed to the mounting frame 1. Sliding seats 4 are slidably connected to both sides of the fixed frame 3. A connecting slide rod 41 is fixedly connected to one side of the sliding seat 4. One end of the connecting slide rod 41 is slidably connected to one side of the fixed frame 3. A mounting groove is provided on one side of the sliding seat 4. A movable plate 5 is hinged inside the mounting groove via a pin. The movable plate 5 limits and blocks the two sides of the goods, preventing them from tipping over. A slide rail is provided on one side of the fixed frame 3 for the connecting slide rod 41 to slide. By driving the connecting slide rod 41 to slide on one side of the fixed frame 3, the distance between the two movable plates 5 is adjusted. The mounting groove restricts the two movable plates 5 from flipping inward, ensuring that the maximum flip angle between the movable plate 5 and the sliding seat 4 is ninety degrees.

[0026] Please refer to it again. Figure 1 , Figure 3 , Figure 4 and Figure 5 A blocking frame 51 is slidably connected to the sliding seat 4 to restrict the outward rotation of the movable plate 5. A connecting frame 52 is fixedly connected to the sliding seat 4. An adjusting screw 53 is threadedly connected to the connecting frame 52. One end of the adjusting screw 53 is rotatably connected to the blocking frame 51. The blocking frame 51 is U-shaped. The blocking frame 51 restricts the outward rotation of the movable plate 5, thereby keeping the movable plate 5 perpendicular to the sliding seat 4. By driving the adjusting screw 53 to rotate, one end of the blocking frame 51 is pulled away from the movable plate 5, thereby releasing the restriction effect on the movable plate 5 and causing the movable plate 5 to rotate 90 degrees and remain parallel to the fixed frame 3, so as to prevent the movable plate 5 from affecting the loading efficiency during loading.

[0027] Please refer to it again. Figure 1 , Figure 3 and Figure 5 The fixed frame 3 is provided with a second adjustment mechanism for adjusting the distance between the two sliding seats 4. The second adjustment mechanism includes an elliptical wheel 32 that rotates on the fixed frame 3. Both ends of the elliptical wheel 32 are rotatably connected to connecting rods 34. The other ends of the two connecting rods 34 are hinged to one side of the two sliding seats 4 by pins. The elliptical wheel 32 is elliptical in shape. By driving the elliptical wheel 32 to rotate, the two sliding seats 4 are pulled closer or further apart under the connecting action of the connecting rods 34, thereby adjusting the distance between the two movable plates 5.

[0028] Please refer to it again. Figure 1 , Figure 3 and Figure 5 A rotating rod 31 is rotatably connected to the fixed frame 3, and an elliptical wheel 32 is fixedly connected to the rotating rod 31. One end of the rotating rod 31 extends to the back of the mounting frame 1, and the other end of the rotating rod 31 is fixedly connected to a connecting gear 35. A rack rod 81 is slidably connected to the back of the mounting frame 1, and the rack rod 81 meshes with the connecting gear 35. An electric push rod 8 is fixedly connected to the back of the mounting frame 1, and the telescopic end of the electric push rod 8 is fixedly connected to the rack rod 81. A track supporting the sliding of the rack rod 81 is fixedly connected to the back of the mounting frame 1. By activating the electric push rod 8, the rack rod 81 is pushed to slide. Under the meshing action of the rack rod 81 and the connecting gear 35, the rotating rod 31 is driven to rotate, thereby driving the elliptical wheel 32 to rotate.

[0029] Working principle: The mounting bracket 1 is installed on the forklift. The goods are moved onto the forks 2, and the movable plate 5 is driven to flip so that it is perpendicular to the fixed bracket 3. Then, by rotating the adjusting screw 53, one end of the blocking bracket 51 is pushed to slide towards the movable plate 5. The blocking bracket 51 blocks the movable plate 5 to prevent it from flipping. By activating the electric push rod 8, the rack rod 81 is pushed to slide on the mounting bracket 1. The meshing action of the rack rod 81 and the connecting gear 35 drives the elliptical wheel 32 to rotate. Under the connection of the connecting rod 34, the two movable plates 5 are pulled closer to each other. The two movable plates 5 are used to assist in limiting and fixing the goods, achieving the effect of preventing tipping. By rotating the handwheel at one end of the bidirectional screw 7, the two second sliding blocks 22 are driven to slide closer or further apart, which can adjust the distance between the two forks 2.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multifunctional electrically powered handling fork truck anti-rollover side structure, characterized in that: The device includes a mounting frame (1) and an anti-tipping mechanism fixed on the mounting frame (1). Two forks (2) are slidably connected to the mounting frame (1). The mounting frame (1) is provided with a first adjustment mechanism for adjusting the distance between the two forks (2). The anti-tipping mechanism includes a fixed frame (3) fixed on the mounting frame (1). Sliding seats (4) are slidably connected to both sides of the fixed frame (3). A mounting groove is provided on one side of the sliding seat (4). A movable plate (5) is hinged inside the mounting groove by a pin. The fixed frame (3) is provided with a second adjustment mechanism for adjusting the distance between the two sliding seats (4). A blocking frame (51) that restricts the movable plate (5) from flipping outward is slidably connected to the sliding seat (4). A connecting frame (52) is fixedly connected to the sliding seat (4). An adjusting screw (53) is threadedly connected to the connecting frame (52). One end of the adjusting screw (53) is rotatably connected to the blocking frame (51).

2. The multifunctional electric carrying forklift rollover-preventing side structure according to claim 1, characterized in that: The mounting bracket (1) is fixedly connected to an I-beam slide rail (6), and the fork (2) is fixedly connected to a first sliding block (21), which is slidably connected to the I-beam slide rail (6).

3. The multifunctional electrically operated carrying forklift truck rollover prevention side structure according to claim 1, characterized in that: The first adjustment mechanism includes a bidirectional screw (7) rotating on the mounting bracket (1), and a second sliding block (22) is fixedly connected to the fork (2), the second sliding block (22) being threadedly connected to the bidirectional screw (7).

4. The multifunctional electrically operated carrying forklift truck rollover prevention side structure according to claim 1, characterized in that: A connecting slide rod (41) is fixedly connected to one side of the sliding seat (4), and one end of the connecting slide rod (41) is slidably connected to one side of the fixing frame (3).

5. The multifunctional electrically operated carrying forklift truck rollover prevention side structure, as claimed in claim 1, wherein: The second adjustment mechanism includes an elliptical wheel (32) that rotates on a fixed frame (3). Both ends of the elliptical wheel (32) are rotatably connected to connecting rods (34). The other ends of the two connecting rods (34) are hinged to one side of two sliding seats (4) by pins.

6. The multifunctional electrically operated carrying forklift truck rollover prevention side structure according to claim 5, characterized in that: A rotating rod (31) is rotatably connected to the fixed frame (3), and an elliptical wheel (32) is fixedly connected to the rotating rod (31). One end of the rotating rod (31) extends to the back of the mounting frame (1), and a connecting gear (35) is fixedly connected to the other end of the rotating rod (31). A rack rod (81) is slidably connected to the back of the mounting frame (1), and the rack rod (81) meshes with the connecting gear (35).

7. The multifunctional electrically operated forklift truck rollover prevention side structure according to claim 6, characterized in that: An electric push rod (8) is fixedly connected to the back of the mounting bracket (1), and the telescopic end of the electric push rod (8) is fixedly connected to the rack rod (81).

Citation Information

Patent Citations

  • Anti-rollover device for electric forklift

    CN221662542U