Anti-rollover structure of electric fork truck
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KING-LIFT EQUIP LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-08-07
AI Technical Summary
1、传统的电动叉车防侧翻装置一般直接安装在叉车两侧进行使用,导致不同型号的叉车需要安装对应型号的防侧翻装置进行使用,导致叉车防侧翻装置无法适配不同的叉车进行使用
1、该一种电动叉车防侧翻结构,通过启动叉车通过导向板使装置整体位于叉车底部时,启动传动电机带动主动齿轮进行转动,主动齿轮转动带动两组连接齿轮进行同步转动,连接齿轮转动带动螺纹杆进行转动,螺纹杆转动带动两组活动块在连接座内部呈对称式移动,活动块移动将抵接板对电动叉车两侧进行抵接达到适配不同尺寸电动叉车安装效果,保证了防侧翻装置可进行适配安装进行使用。
Smart Images

Figure CN224604623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forklift anti-rollover technology, specifically an anti-rollover structure for electric forklifts. Background Technology
[0002] When operating an electric forklift, it is necessary to accurately move goods to the designated location on the shelf. In this kind of operating environment, the stability of the forklift is crucial. The slightest carelessness may cause it to tip over due to improper operation or uneven ground. Due to the extremely high frequency of operation, hundreds or even thousands of handling tasks may be performed every day. This makes the need for anti-tipping mechanical structures extremely urgent to ensure the safety of long-term, high-intensity operation.
[0003] The existing technology has the following problems: 1. Traditional electric forklift anti-tipping devices are generally installed directly on both sides of the forklift for use, which means that different models of forklifts need to be equipped with corresponding anti-tipping devices, resulting in the forklift anti-tipping devices being unable to be used with different forklifts.
[0004] 2. When traditional electric forklift anti-tipping devices are in operation for a long time, the connection end of the anti-tipping device will be continuously impacted by the cargo, which will make the connection end of the anti-tipping device unstable and affect the service life of the anti-tipping device. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an anti-tipping structure for electric forklifts, solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: An anti-tipping structure for an electric forklift includes a base, a connecting block fixedly connected to the top of the base, a support component fixedly connected to the top of the connecting block, and a protective component fixedly connected to the surface of the support component. The support assembly includes a connecting seat that is fixedly connected to one end of the connecting block, and a movable block is slidably connected to the inner wall of the connecting seat; The protective component includes an abutment block fixedly connected to the top of the movable block, and an abutment plate rotatably connected to one side of the abutment block.
[0007] Preferably, the support assembly further includes a threaded rod, the movable block is internally threaded with the threaded rod, one end of the threaded rod is fixedly connected to a connecting gear, the surface of the connecting gear is meshed with a drive gear, one end of the drive gear is fixedly connected to a drive motor, one side of the movable block is fixedly connected to a support base, the inside of the support base is fixedly connected to a guide rod, and the bottom end of the support base is fixedly connected to a caster wheel.
[0008] Preferably, the protective assembly further includes a rotating block, which is rotatably connected to one side of the abutment plate. A damping rod is fixedly connected to one end of the rotating block, and a connecting spring is sleeved on the surface of the damping rod. A fixing block is fixedly connected to one end of the connecting spring.
[0009] Preferably, there are two sets of movable blocks and abutment blocks, the movable blocks and abutment blocks are located on the same vertical line, the movable blocks and abutment blocks are symmetrically distributed on the inner side of the connecting seat, and the abutment blocks correspond to the positions of the forklift frame on both sides.
[0010] Preferably, the base has guide grooves on both sides that are adapted to the size of the guide rod, and the guide rod is slidably connected to the inside of the base through the guide grooves.
[0011] Preferably, guide plates are provided on both sides of the connecting seat, and the horizontal position of the guide plates is consistent with the height of the base.
[0012] Preferably, the damping rod, the connecting spring, and the rotating block are all located on the same vertical line, the diameter of the rotating block is larger than the diameter of the connecting spring, and the diameter of the connecting spring is larger than the diameter of the damping rod.
[0013] Compared with the prior art, this utility model provides an anti-tipping structure for electric forklifts, which has the following beneficial effects: 1. This electric forklift anti-tipping structure, when the forklift is started and the device is positioned at the bottom of the forklift via the guide plate, the drive motor is started to drive the drive gear to rotate. The rotation of the drive gear drives two sets of connecting gears to rotate synchronously. The rotation of the connecting gears drives the threaded rod to rotate. The rotation of the threaded rod drives two sets of movable blocks to move symmetrically inside the connecting seat. The movement of the movable blocks abuts the abutment plate against both sides of the electric forklift to achieve the installation effect of adapting to electric forklifts of different sizes, ensuring that the anti-tipping device can be installed and used in an adaptable manner.
[0014] 2. This electric forklift anti-rollover structure transmits the forklift's rollover force by rotating abutment plate on one side of the abutment block. The rotation of the abutment plate pushes the rotating block to compress the connecting spring. After compression, the connecting spring rebounds, and the damping rod absorbs the rebound energy of the connecting spring, thereby achieving a buffering effect on the forklift's rollover force. This ensures that the connection between the anti-rollover device and the forklift is not easily damaged, thus guaranteeing the device's service life. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the base and connecting seat structure of this utility model; Figure 3 This is a schematic diagram of the movable block and support base structure of this utility model; Figure 4 This is a schematic diagram of the structure at point A in Figure 1 of this utility model.
[0016] In the diagram: 1. Base; 2. Connecting block; 3. Support assembly; 31. Connecting seat; 32. Movable block; 33. Threaded rod; 34. Connecting gear; 35. Drive gear; 36. Drive motor; 37. Support seat; 38. Guide rod; 39. Caster wheel; 4. Protective assembly; 41. Abutting block; 42. Abutting plate; 43. Rotating block; 44. Damping rod; 45. Connecting spring; 46. Fixed block. Detailed Implementation
[0017] 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.
[0018] Please see Figure 1-4 In this embodiment: an anti-tipping structure for an electric forklift includes a base 1, a connecting block 2 fixedly connected to the top of the base 1, a support component 3 fixedly connected to the top of the connecting block 2, and a protective component 4 fixedly connected to the surface of the support component 3. The support component 3 includes a connecting seat 31 that is fixedly connected to one end of the connecting block 2, and a movable block 32 is slidably connected to the inner wall of the connecting seat 31; The protective component 4 includes an abutment block 41 fixedly connected to the top of the movable block 32. An abutment plate 42 is rotatably connected to one side of the abutment block 41, ensuring that the starting drive motor 36 drives the drive gear 35 to rotate. The rotation of the drive gear 35 drives the connecting gear 34 and the threaded rod 33 to rotate. The rotation of the threaded rod 33 causes the movable block 32 and the abutment block 41 to move symmetrically. When the abutment block 41 abuts against both sides of the electric forklift, the device achieves the effect of matching and installing. Then, the rotation of the abutment plate 42 transmits the forklift's side-tipping force. At the same time, the abutment plate 42 pushes the rotating block 43 to compress the connecting spring 45. The damping rod 44 absorbs the rebound energy of the connecting spring 45, achieving a buffering effect on the forklift's side-tipping force.
[0019] In this embodiment, the support assembly 3 also includes a threaded rod 33. The threaded rod 33 is internally threaded to the movable block 32. One end of the threaded rod 33 is fixedly connected to a connecting gear 34. The surface of the connecting gear 34 is meshed with a drive gear 35. One end of the drive gear 35 is fixedly connected to a drive motor 36. A support base 37 is fixedly connected to one side of the movable block 32. A guide rod 38 is fixedly connected inside the support base 37. A caster wheel 39 is fixedly connected to the bottom end of the support base 37. By setting the support assembly 3, it is ensured that the drive motor 36 drives the drive gear 35 to rotate. The rotation of the drive gear 35 drives the connecting gear 34 and the threaded rod 33 to rotate. The rotation of the threaded rod 33 causes the movable block 32 and the abutment block 41 to move symmetrically. When the abutment block 41 abuts against both sides of the electric forklift, the device is adapted for installation.
[0020] The protective component 4 also includes a rotating block 43. The rotating block 43 is rotatably connected to one side of the abutment plate 42. A damping rod 44 is fixedly connected to one end of the rotating block 43. A connecting spring 45 is sleeved on the surface of the damping rod 44. A fixing block 46 is fixedly connected to one end of the connecting spring 45. By setting the protective component 4, the rotation of the abutment plate 42 is ensured to transmit the forklift tipping force. At the same time, the abutment plate 42 pushes the rotating block 43 to compress the connecting spring 45. The damping rod 44 absorbs the rebound energy of the connecting spring 45, thereby achieving the buffering effect of the forklift tipping force.
[0021] There are two sets of movable blocks 32 and abutment blocks 41. The movable blocks 32 and abutment blocks 41 are located on the same vertical line and are symmetrically distributed on the inner side of the connecting seat 31. The abutment blocks 41 correspond to the positions of the forklift frame on both sides, ensuring that when the drive motor 36 drives the drive gear 35 to rotate, the drive gear 35 synchronously drives the two sets of connecting gears 34 and threaded rods 33 to rotate. The rotation of the threaded rods 33 drives the two sets of movable blocks 32 and abutment blocks 41 to move symmetrically on the inner side of the connecting seat 31, thereby achieving the clamping and positioning effect on the forklift frame.
[0022] The base 1 has guide grooves on both sides that are adapted to the size of the guide rod 38. The guide rod 38 is slidably connected to the inside of the base 1 through the guide grooves, which ensures that the movement trajectory of the movable block 32 and the support 37 is adapted to the opening position of the guide grooves, and ensures that the positions of the movable block 32 and the support 37 will not shift.
[0023] Guide plates are provided on both sides of the connecting seat 31. The horizontal position of the guide plates is consistent with the height of the base 1, which ensures that the electric forklift can move its position to the top of the device through the guide plates, and ensures that the device is compatible with different models of electric forklifts for installation.
[0024] The damping rod 44, the connecting spring 45, and the rotating block 43 are all on the same vertical line. The diameter of the rotating block 43 is larger than the diameter of the connecting spring 45, and the diameter of the connecting spring 45 is larger than the diameter of the damping rod 44. This ensures that when the rotating block 43 is rotated under force, the positions of the connecting spring 45 and the damping rod 44 are always on the same vertical line with the rotating block 43. This also ensures that when the connecting spring 45 is compressed, the damping rod 44 can fully absorb the rebound energy of the connecting spring 45.
[0025] The working principle and usage process of this utility model: This utility model is an anti-tipping structure for electric forklifts. When it needs to be used with different models of electric forklifts, by starting the forklift and guiding the device to the bottom of the forklift via the guide plate, the drive motor 36 is started, driving the drive gear 35 to rotate. The rotation of the drive gear 35 drives the two sets of connecting gears 34 to rotate synchronously. The rotation of the connecting gears 34 drives the threaded rod 33 to rotate. The rotation of the threaded rod 33 drives the two sets of movable blocks 32 to move symmetrically within the connecting seat 31. The movement of the movable blocks 32 abuts the contact plate 42 against both sides of the electric forklift. The abutment plate 42 is designed to be compatible with electric forklifts of different sizes, ensuring that the anti-rollover device can be installed and used. When protection is needed at the connection between the anti-rollover device and the forklift, the abutment plate 42 rotates on one side of the abutment block 41 to transmit the rollover force of the forklift. The rotation of the abutment plate 42 pushes the rotating block 43 to compress the connecting spring 45. After compression, the connecting spring 45 rebounds, and the damping rod 44 absorbs the rebound energy of the connecting spring 45, thereby achieving a buffering effect on the rollover force of the forklift. This ensures that the connection between the anti-rollover device and the forklift is not easily damaged, thus guaranteeing the service life of the device.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An anti-tipping structure for an electric forklift, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a connecting block (2), the top of the connecting block (2) is fixedly connected to a support component (3), and the surface of the support component (3) is fixedly connected to a protective component (4). The support component (3) includes a connecting seat (31) fixedly connected to one end of the connecting block (2), and a movable block (32) is slidably connected to the inner wall of the connecting seat (31). The protective component (4) includes an abutment block (41) fixedly connected to the top of the movable block (32), and an abutment plate (42) is rotatably connected to one side of the abutment block (41).
2. The anti-tipping structure for an electric forklift according to claim 1, characterized in that: The support assembly (3) also includes a threaded rod (33), the threaded rod (33) is internally threaded to the movable block (32), a connecting gear (34) is fixedly connected to one end of the threaded rod (33), a drive gear (35) is meshed with the surface of the connecting gear (34), a drive motor (36) is fixedly connected to one end of the drive gear (35), a support seat (37) is fixedly connected to one side of the movable block (32), a guide rod (38) is fixedly connected inside the support seat (37), and a caster wheel (39) is fixedly connected to the bottom end of the support seat (37).
3. The anti-tipping structure for an electric forklift according to claim 1, characterized in that: The protective component (4) also includes a rotating block (43), which is rotatably connected to one side of the abutment plate (42). A damping rod (44) is fixedly connected to one end of the rotating block (43), and a connecting spring (45) is sleeved on the surface of the damping rod (44). A fixing block (46) is fixedly connected to one end of the connecting spring (45).
4. The anti-tipping structure for an electric forklift according to claim 1, characterized in that: There are two sets of movable blocks (32) and abutting blocks (41). The movable blocks (32) and abutting blocks (41) are located on the same vertical line. The movable blocks (32) and abutting blocks (41) are symmetrically distributed on the inner side of the connecting seat (31). The abutting blocks (41) correspond to the positions of the forklift frame on both sides.
5. The anti-tipping structure for an electric forklift according to claim 1, characterized in that: The base (1) has guide grooves on both sides that are adapted to the size of the guide rod (38), and the guide rod (38) is slidably connected to the inside of the base (1) through the guide grooves.
6. The anti-tipping structure for an electric forklift according to claim 1, characterized in that: Guide plates are provided on both sides of the connecting seat (31), and the horizontal position of the guide plates is consistent with the height of the base (1).
7. The anti-tipping structure for an electric forklift according to claim 3, characterized in that: The damping rod (44), the connecting spring (45), and the rotating block (43) are all on the same vertical line. The diameter of the rotating block (43) is larger than the diameter of the connecting spring (45), and the diameter of the connecting spring (45) is larger than the diameter of the damping rod (44).