Fork foot of four-wheel riding type forklift

Abstract

The invention provides a fork foot of a four-wheel riding type forklift, which belongs to the technical field of forklift accessories and comprises a fork foot main body and a sliding plate. A groove is formed in the bottom face of the horizontal section of the fork foot body, a plurality of parallel sliding grooves are formed in the top face of the horizontal section of the fork foot body, sliding blocks corresponding to the sliding grooves in number are arranged on the top face of the sliding plate, and a first traction rope and a second traction rope are arranged in the groove. The first traction rope is configured to be capable of pulling the sliding plate to move in the direction close to the vertical section of the fork foot body, and the second traction rope is configured to be capable of pulling the sliding plate to move in the direction away from the vertical section of the fork foot body, so that the sliding block can drag goods to be close to or away from the vertical section of the fork foot body. When goods are forked and transported in a space-limited area, the goods are moved towards the side close to the vehicle by utilizing the sliding block, the vehicle does not need to adjust the position of the goods for the second time, and correspondingly, the goods can be moved towards the side far away from the vehicle by utilizing the sliding block, so that unloading of the vehicle is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field, and in particular relates to a fork foot of a four-wheel ride-on forklift. Background Art

[0002] A four-wheel forklift is an industrial vehicle used for handling and stacking. The driver can sit in the cab and drive and control the forklift by operating the control device. Four-wheel forklifts can be divided into two categories: electric forklifts and internal combustion forklifts. They are usually composed of chassis, cab, lifting mechanism, transmission and control system, etc. They mainly use fork legs to support goods and use hydraulic system to lift or lower goods. The hydraulic system is composed of hydraulic oil tank, pump station, motor, control valve, oil cylinder, oil pipe, etc. The motor drives the pump station to work, and the pump station presses oil into the oil cylinder. The piston in the oil cylinder is acted upon by the hydraulic pressure, thereby lifting or lowering the fork legs, and then lifting or lowering the goods.

[0003] When a forklift uses its fork legs to transport goods, in order to prevent the goods from falling, the fork legs need to be inserted deeper so that the goods are placed on the end of the fork legs close to the forklift (i.e. the center of gravity of the goods is close to the center of gravity of the vehicle). However, when the vehicle's moving space is limited and the fork legs cannot be inserted deeper, the goods need to be transported to an area with a larger space, and then the fork legs need to be reinserted after the goods are put down, so that the goods can be placed on the end of the fork legs close to the forklift, and then the goods can be transferred. However, this method is time-consuming and requires sufficient space for the vehicle to adjust, and cannot meet the needs of fast transfer of goods. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a fork leg of a four-wheel ride-on forklift, which at least partially solves the above problem.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a fork foot of a four-wheeled ride-on forklift, comprising: A fork leg body, the fork leg body comprising a horizontal section and a vertical section distributed at right angles, a groove being provided on the bottom surface of the horizontal section of the fork leg body, and a plurality of mutually parallel sliding grooves being provided on the top surface of the horizontal section of the fork leg body; A slide plate, slidably connected in the groove, the top surface of the slide plate is provided with slide blocks corresponding to the number of the slide grooves, and the slide blocks slide in the slide grooves; Wherein, the vertical section of the fork leg body is provided with a first driving component, the first driving component includes two output ends, and is respectively connected to a first traction rope and a second traction rope, the first traction rope and the second traction rope are connected to the skateboard, and can apply traction forces in opposite directions to the skateboard; Two eccentric rollers for supporting the slide plate are rotatably connected in the groove, and a second driving component is provided on one side of the fork leg body for driving the eccentric rollers to rotate and adjust the supported height of the slide plate.

[0006] Furthermore, a fixed pulley is provided at one end of the groove away from the vertical section of the fork leg body, and the second traction rope can change the traction direction after being wound around the fixed pulley.

[0007] Furthermore, a second movable pulley is provided on the skateboard, the first end of the second traction rope is connected to the first driving component, and the second end of the second traction rope is connected to the end of the fork leg body away from the vertical section after being wound around the fixed pulley and the second movable pulley in sequence.

[0008] Furthermore, a first movable pulley is provided on the skateboard, a first end of the first traction rope is connected to the first driving component, and a second end of the first traction rope is connected to an end of the fork leg body close to the vertical section after being wound around the first movable pulley.

[0009] Furthermore, gears are coaxially fixed to one end of the two eccentric rollers, and the two gears are meshed with each other.

[0010] Furthermore, a plurality of rubber blocks for increasing friction are fixed to the top surface of the sliding block along the length direction.

[0011] Furthermore, the first driving component includes a reducer and a motor connected to each other, the output end of the reducer is connected to a traction roller, the first traction rope and the second traction rope are respectively wound around the two ends of the traction roller, and the winding directions are opposite, so that when the traction roller rotates in any direction, the first traction rope and the second traction rope are wound one and released the other.

[0012] Furthermore, the fork leg body is provided with two wire passing holes corresponding to the traction roller, and the first traction rope and the second traction rope are respectively introduced into the two ends of the traction roller through the wire passing holes.

[0013] Furthermore, an arc-shaped strip is provided in the groove at a position close to the wire-passing hole, for supporting the first traction rope and the second traction rope passing through the wire-passing hole.

[0014] Furthermore, a shield for protecting the first driving component is fixed to the vertical section of the fork leg body.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. By setting a slider that can be pulled and slid on the fork leg body, the goods can be moved on the fork leg body. When forking goods in a space-constrained area, after the fork leg supports the goods, the slider is used to drag the goods to the side close to the vehicle, so that the center of gravity of the goods is close to the center of gravity of the vehicle, and the vehicle does not need to adjust the position of the goods twice. Correspondingly, when unloading in a space-constrained area, the slider can also be used to drag the goods to the side away from the vehicle, which is convenient for vehicle unloading; 2. The slide plate is supported by an eccentric roller. The height of the slide plate can be adjusted by rotating the eccentric roller. When the height of the slide plate is increased until the slider extends out of the slide slot, the bottom of the cargo can contact and be supported by the slider, and the bottom of the cargo does not contact the fork leg body, thereby reducing the sliding friction, so that the slider can drag the cargo to move on the fork leg body. The height of the slide plate is lowered until the slider is completely stored in the slide slot. At this time, the surface of the fork leg body is flat, and when the fork leg body normally forks cargo, it will not affect the bottom of the cargo. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a fork leg of a four-wheeled forklift according to an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a four-wheeled forklift with a fork foot intermediate guard removed according to an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a slide plate and an eccentric roller in a fork leg of a four-wheeled forklift according to an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the interior of a groove in a fork foot of a four-wheeled forklift according to an embodiment of the present invention; Figure 5 A schematic diagram of the winding paths of the first traction rope and the second traction rope in the fork foot of a four-wheel ride-on forklift proposed in an embodiment of the present invention; Figure 6 for Figure 2 The enlarged schematic diagram at A in the middle; Figure 7 A schematic diagram of the installation position of an arc-shaped strip in a fork foot of a four-wheel ride-on forklift according to an embodiment of the present invention; Figure 8 A schematic diagram of a state in which a first traction rope and a second traction rope in a fork foot of a four-wheeled forklift according to an embodiment of the present invention are wound around a traction roller; Fig. 9 This is a schematic diagram of the state of the fork feet proposed by the present invention transporting goods in an area with limited space.

[0017] Among them, 1. fork leg body; 11. arc-shaped bar; 12. protective cover; 101. groove; 102. slide groove; 103. wire hole; 2. slide plate; 21. slider; 22. rubber block; 3. first traction rope; 4. second traction rope; 41. fixed pulley; 5. first driving component; 51. reducer; 52. motor; 53. traction roller; 6. first movable pulley; 7. second movable pulley; 8. eccentric roller; 81. gear; 9. second driving component.

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0021] like Figure 1 As shown, the present invention proposes a fork leg of a four-wheel ride-on forklift, comprising a fork leg body 1, a slide plate 2, a first traction rope 3, a second traction rope 4 and a first driving component 5.

[0022] The fork leg body 1 includes a horizontal section and a vertical section distributed at right angles. The vertical section of the fork leg body 1 is installed on the vehicle. A groove 101 is provided on the bottom surface of the horizontal section of the fork leg body 1, and a plurality of mutually parallel slide grooves 102 are provided on the top surface of the horizontal section of the fork leg body 1. The skateboard 2 is slidably connected in the groove 101. The top surface of the skateboard 2 is provided with sliders 21 corresponding to the number of the slide grooves 102, and the sliders 21 slide in the slide grooves 102.

[0023] When the fork leg body 1 supports goods, the bottom of the goods contacts the slider 21 , and the goods can be dragged to move in the horizontal section of the fork leg body 1 through the sliding of the slider 21 .

[0024] Furthermore, the length of the slider 21 is 1 / 2 of the length of the slide groove 102, so that the slider 21 has sufficient contact area with the goods to avoid dragging and slipping. At the same time, the slider 21 has a long moving distance and can drag the goods to move over a large range in the horizontal section of the fork leg body 1.

[0025] Combination Figure 3 , Figure 4 and Figure 5 As shown, two eccentric rollers 8 for supporting the slide plate 2 are rotatably connected in the groove 101, and a second driving component 9 is provided on one side of the fork leg body 1 for driving the eccentric rollers 8 to rotate; Since the slide plate 2 is supported by the eccentric roller 8, when the eccentric roller 8 rotates, the supported height of the slide plate 2 can be adjusted, and accordingly, the height of the slider 21 on the slide plate 2 extending out of the slide groove 102 can also be adjusted.

[0026] In this way, when it is necessary to drag the goods on the fork leg body 1, the eccentric roller 8 is rotated to raise the height of the slide plate 2, and accordingly, the slider 21 can extend out of the slide slot 102. When the goods are supported, the bottom of the goods can contact with the slider 21 and be supported by the slider 21, and the bottom of the goods does not contact with the fork leg body 1, thereby reducing the sliding friction, so that the slider 21 can drag the goods on the fork leg body 1. When there is no need to drag the goods on the fork leg body 1, rotate the eccentric roller 8 and lower the height of the slide plate 2 until the slider 21 is completely stored in the slide groove 102. At this time, the surface of the fork leg body 1 is flat, and when the fork leg body 1 normally forks the goods, it will not affect the bottom of the goods, thus meeting the fork transportation needs of goods with high requirements for bottom flatness.

[0027] It should be understood that, since the side surface of the eccentric roller 8 is in an arc shape, the supported height of the slide plate 2 can be adjusted steplessly during rotation, thereby improving the flexibility of use.

[0028] Furthermore, a gear 81 is coaxially fixed to one end of each of the two eccentric rollers 8, and the two gears 81 mesh with each other. Under the action of the two gears 81, when one eccentric roller 8 is driven to rotate, the other eccentric roller 8 can rotate synchronously. Therefore, the second driving component 9 only needs to drive one eccentric roller 8 to rotate.

[0029] In a specific embodiment, the second driving component 9 is composed of a stepping motor and a worm gear reducer, and the worm gear reducer has a self-locking function to prevent the eccentric roller 8 from rotating on its own.

[0030] Combination Figure 4 and Figure 5As shown, the vertical section of the fork leg body 1 is provided with a first driving component 5, the first driving component 5 includes two output ends, and is respectively connected to a first traction rope 3 and a second traction rope 4, the first traction rope 3 and the second traction rope 4 are connected to the skateboard 2, and can apply traction forces in opposite directions to the skateboard 2; When the first driving component 5 is used to reel in the first traction rope 3, the first traction rope 3 can pull the slide plate 2 to move in a direction close to the vertical section of the fork leg body 1; when the first driving component 5 is used to reel in the second traction rope 4, the second traction rope 4 can pull the slide plate 2 to move in a direction away from the vertical section of the fork leg body 1; The slide plate 2 can be pulled and slid in two directions by the first traction rope 3 and the second traction rope 4 respectively, so that the goods in the horizontal section of the fork leg body 1 can move closer to or farther away from the vertical section of the fork leg body 1.

[0031] Since the skateboard 2 is towed by a towing rope, which is soft and has good deformation ability, the towing rope can still tow the skateboard 2 when the skateboard 2 is adjusted in height.

[0032] Combination Figure 4 and Figure 5 As shown, a fixed pulley 41 is provided at one end of the groove 101 away from the vertical section of the fork leg main body 1, and the second traction rope 4 can change the traction direction after being wound around the fixed pulley 41, while the first traction rope 3 directly pulls the skateboard 2 without changing the traction direction, so that the ends of the first traction rope 3 and the second traction rope 4 that are wound or released are both located at the same end of the fork leg main body 1, but the traction directions of the first traction rope 3 and the second traction rope 4 are opposite.

[0033] Furthermore, a second movable pulley 7 is provided on the slide plate 2, a first end of the second traction rope 4 is connected to the first driving component 5, and a second end of the second traction rope 4 is connected to an end of the fork leg body 1 away from the vertical section after being wound through the fixed pulley 41 and the second movable pulley 7 in sequence; After the second traction rope 4 is wound around the fixed pulley 41, the traction direction is changed, and then the second traction rope 4 is wound around the second movable pulley 7. When the skateboard 2 is towed and slides, the second movable pulley 7 moves synchronously with the skateboard 2. Compared with directly traction of the skateboard 2, the use of the second movable pulley 7 can save half of the traction force, thereby reducing the load of the first drive component 5, and a low-power and small-volume first drive component 5 can be used.

[0034] Furthermore, a first movable pulley 6 is provided on the slide plate 2, a first end of the first traction rope 3 is connected to the first driving component 5, and a second end of the first traction rope 3 is connected to an end of the fork leg body 1 close to the vertical section after being wound around the first movable pulley 6; When the first traction rope 3 is pulling, the first movable pulley 6 and the skateboard 2 can move synchronously. Compared with the first traction rope 3 directly pulling the skateboard 2, using the first movable pulley 6 can save half of the traction force, thereby reducing the load of the first driving component 5, and a low-power and small-volume first driving component 5 can be used.

[0035] It can be understood that the slide plate 2 can be driven by using a traction rope and a pulley, so that the slider 21 can drag the goods toward or away from the vertical section of the fork leg main body 1, thereby realizing the movement of the goods on the fork leg main body 1. When forking goods in an area with limited space, after supporting the goods, the fork leg uses the slider 21 to move the goods in the direction close to the vertical section of the fork leg main body 1 (that is, move it to the side close to the vehicle), so that the center of gravity of the goods is close to the center of gravity of the vehicle, and there is no need for the vehicle to adjust the position of the goods a second time. Accordingly, when unloading goods in an area with limited space, the slider 21 can also be used to move the goods in the direction away from the vertical section of the fork leg main body 1 (that is, move it to the side away from the vehicle), so as to facilitate vehicle unloading.

[0036] Combination Figure 2 , Figure 6 and Figure 8 As shown, the first driving component 5 includes a reducer 51 and a motor 52 which are connected to each other. The reducer 51 can reduce the rotation speed of the motor 52 and increase the output torque, thereby increasing the traction force on the first traction rope 3 and the second traction rope 4; The output end of the reducer 51 is connected to a traction roller 53. The first traction rope 3 and the second traction rope 4 are respectively wound around the two ends of the traction roller 53 in opposite directions. When the traction roller 53 rotates in any direction, one of the first traction rope 3 and the second traction rope 4 is wound and the other is released.

[0037] In this way, when the goods need to be moved to the side closer to the vehicle, the traction roller 53 rotates in one direction to reel in the first traction rope 3 and release the second traction rope 4 at the same time, so that the slide plate 2 can move to the side closer to the vehicle; when the goods need to be moved to the side away from the vehicle, the traction roller 53 rotates in the other direction to reel in the second traction rope 4 and release the first traction rope 3 at the same time, so that the slide plate 2 can move to the side away from the vehicle.

[0038] In a preferred embodiment, the reducer 51 is a worm gear reducer, which has a self-locking function while reducing speed, so as to prevent the slide plate 2 from being dragged due to the inertia of the cargo.

[0039] It can be understood that since the first traction rope 3 and the second traction rope 4 only use one movable pulley, when the traction skateboard 2 moves the same distance, the two traction ropes need to be wound up or released to the same length, and when the traction roller 53 rotates, the two traction ropes are wound up or released to the same length, so that the skateboard 2 can be smoothly towed and slid, avoiding the skateboard 2 being restricted by one of the traction ropes when sliding.

[0040] Furthermore, two wire passing holes 103 corresponding to the traction roller 53 are provided on the fork leg body 1, and the first traction rope 3 and the second traction rope 4 located in the groove 101 can be respectively introduced into the two ends of the traction roller 53 through the two wire passing holes 103.

[0041] In a preferred embodiment, a shield 12 for protecting the first driving component 5 is fixed to the vertical section of the fork leg body 1 to prevent the first driving component 5 from being squeezed by the cargo and causing damage to the first driving component 5 .

[0042] Combination Figure 7 As shown, an arc-shaped bar 11 is provided in the groove 101 near the wire hole 103, which is used to support the first traction rope 3 and the second traction rope 4 passing through the wire hole 103, and the bottom of the arc-shaped bar 11 is an arc surface. When the first traction rope 3 and the second traction rope 4 turn, they pass through the arc at the bottom of the arc-shaped bar 11 to avoid the first traction rope 3 and the second traction rope 4 from breaking due to excessive stress when turning.

[0043] Combination Figure 3 As shown, a plurality of rubber blocks 22 for increasing friction are fixed to the top surface of the slider 21 along the length direction. When the fork leg body 1 transports goods, the bottom of the goods contacts the rubber blocks 22, increasing the friction with the bottom of the goods and avoiding slipping between the goods and the slider 21.

[0044] In a preferred embodiment, the rubber block 22 is made of eutectic rubber, which has good wear resistance and load-bearing capacity, and has less wear when repeatedly rubbed against the goods.

[0045] It should be noted that when the sliding block 21 is lowered into the sliding groove 102 , the rubber block 22 needs to be lowered into the sliding groove 102 as well, so as to make the top surface of the horizontal section of the fork leg body 1 flat.

[0046] It can be understood that the rubber block 22 has good compressibility. When the fork leg body 1 transports goods, the rubber block 22 covering the goods is compressed under the action of the weight of the goods and its height is reduced, while the uncovered rubber block 22 is higher. The height difference between the two forms a height difference, so that the uncovered rubber block 22 can act as a stopper for the goods, further avoiding slipping between the goods and the slider 21.

[0047] The working principle of the present invention is as follows: when it is necessary to drag the goods on the fork leg body 1, the eccentric roller 8 is rotated to raise the height of the slide plate 2 until the slider 21 extends out of the slide slot 102. When the goods are supported, the bottom of the goods can contact with the slider 21 and be supported by the slider 21; After the motor 52 is decelerated by the reducer 51 and the output torque is increased, the traction roller 53 is driven to rotate forward or reverse. When the goods need to be moved to the side close to the vehicle, the traction roller 53 rotates in one direction to reel in the first traction rope 3 and release the second traction rope 4 at the same time. The first traction rope 3 pulls the slide plate 2 to move in the direction close to the vertical section of the fork foot body 1 (that is, moves to the side close to the vehicle), so that the goods are dragged to the side close to the vehicle, and the first traction rope 3 can save half of the traction force by using the first movable pulley 6, thereby reducing the load of the motor 52; when the goods need to be moved to the side away from the vehicle, the traction roller 53 rotates in the other direction to reel in the second traction rope 4 and release the first traction rope 3, and the second traction rope 4 changes the traction direction via the fixed pulley 41, so that the second traction rope 4 pulls the slide plate 2 to move in the direction away from the vertical section of the fork foot body 1 (that is, moves to the side away from the vehicle), so that the goods are dragged to the side away from the vehicle, and the second traction rope 4 can save half of the traction force by using the second movable pulley 7, thereby reducing the load of the motor 52; When there is no need to drag the goods on the fork leg body 1, rotate the eccentric roller 8 and lower the height of the slide plate 2 until the slider 21 is completely received into the slide groove 102. At this time, the surface of the fork leg body 1 is flat, and when the fork leg body 1 normally forks the goods, it will not affect the bottom of the goods.

[0048] In summary of the above embodiments: the traction rope and the pulley can be used to drive the slide plate 2 and the slider 21 to move, so that the slider 21 can drag the goods to or away from the vertical section of the fork leg body 1, so as to realize the movement of the goods on the fork leg body 1. When forking goods in a space-constrained area, after the fork leg supports the goods, the slider 21 is used to drag the goods in the direction close to the vertical section of the fork leg body 1 (that is, to move to the side close to the vehicle), so that the center of gravity of the goods is close to the center of gravity of the vehicle, and the vehicle does not need to adjust the position of the goods for a second time. Accordingly, when unloading goods in a space-constrained area, the slider 21 can also be used to drag the goods in the direction away from the vertical section of the fork leg body 1 (that is, to move to the side away from the vehicle), so as to facilitate the unloading of the vehicle; The slide plate 2 is supported by the eccentric roller 8. The height of the slide plate 2 can be adjusted by rotating the eccentric roller 8. When the height of the slide plate 2 is increased to the point where the slider 21 extends out of the slide groove 102, the bottom of the goods can contact the slider 21 and be supported by the slider 21, and the bottom of the goods does not contact the fork leg body 1, thereby reducing the sliding friction, so that the slider 21 can drag the goods to move on the fork leg body 1. The height of the slide plate 2 is lowered to the point where the slider 21 is completely stored in the slide groove 102. At this time, the surface of the fork leg body 1 is flat, and when the fork leg body 1 normally forks goods, it will not affect the bottom of the goods.

[0049] By arranging the first traction rope 3, the second traction rope 4, the fixed pulley 41 and the first driving component 5, the traction sliding of the slider 21 in two directions is realized, and the flexibility of the traction rope is utilized to make the installation position of the first driving component 5 providing the driving force more flexible, thereby reducing the influence of the first driving component 5 on the fork leg body 1, and the space occupied by the traction rope and the pulley is small, which will not affect the forked goods of the fork leg body 1, and by arranging the first movable pulley 6 and the second movable pulley 7, the force required for traction of the first traction rope 3 and the second traction rope 4 can be reduced, thereby reducing the load of the first driving component 5, and a lower power and smaller first driving component 5 can be used.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A fork foot of a four-wheeled forklift, characterized in that: include: A fork leg main body (1), the fork leg main body (1) comprising a horizontal section and a vertical section arranged at right angles, a groove (101) being provided on the bottom surface of the horizontal section of the fork leg main body (1), and a plurality of mutually parallel sliding grooves (102) being provided on the top surface of the horizontal section of the fork leg main body (1); A slide plate (2) is slidably connected in the groove (101), the top surface of the slide plate (2) is provided with slide blocks (21) corresponding in number to the slide grooves (102), and the slide blocks (21) slide in the slide grooves (102); The vertical section of the fork leg body (1) is provided with a first driving component (5), the first driving component (5) comprises two output ends, and is respectively connected to a first traction rope (3) and a second traction rope (4), the first traction rope (3) and the second traction rope (4) are connected to the slide plate (2), and are capable of applying traction forces in opposite directions to the slide plate (2); Two eccentric rollers (8) for supporting the slide plate (2) are rotatably connected in the groove (101), and a second driving component (9) is provided on one side of the fork leg body (1) for driving the eccentric rollers (8) to rotate and adjust the supported height of the slide plate (2).

2. The fork foot of a four-wheel ride-on forklift according to claim 1, characterized in that: A fixed pulley (41) is provided at one end of the groove (101) away from the vertical section of the fork leg body (1), and the second traction rope (4) can change the traction direction after being wound around the fixed pulley (41).

3. The fork foot of a four-wheel ride-on forklift according to claim 2, characterized in that: The slide plate (2) is provided with a second movable pulley (7), the first end of the second traction rope (4) is connected to the first driving component (5), and the second end of the second traction rope (4) is connected to an end of the fork leg body (1) away from the vertical section after being wound around the fixed pulley (41) and the second movable pulley (7) in sequence.

4. The fork foot of a four-wheel ride-on forklift according to claim 1, characterized in that: The slide plate (2) is provided with a first movable pulley (6), the first end of the first traction rope (3) is connected to the first driving component (5), and the second end of the first traction rope (3) is connected to an end of the fork leg body (1) close to the vertical section after being wound around the first movable pulley (6).

5. The fork foot of a four-wheel ride-on forklift according to claim 1, characterized in that: A gear (81) is coaxially fixed to one end of the two eccentric rollers (8), and the two gears (81) are meshed with each other.

6. The fork foot of a four-wheel ride-on forklift according to claim 1, characterized in that: A plurality of rubber blocks (22) for increasing friction force are fixed to the top surface of the sliding block (21) along the length direction.

7. The fork foot of a four-wheel ride-on forklift according to claim 1, characterized in that: The first driving component (5) comprises a reducer (51) and a motor (52) which are connected to each other. The output end of the reducer (51) is connected to a traction roller (53). The first traction rope (3) and the second traction rope (4) are respectively wound around two ends of the traction roller (53) and are wound in opposite directions, so that when the traction roller (53) rotates in any direction, one of the first traction rope (3) and the second traction rope (4) is wound and the other is released.

8. The fork foot of a four-wheel ride-on forklift according to claim 7, characterized in that: The fork leg body (1) is provided with two wire passing holes (103) corresponding to the traction roller (53), and the first traction rope (3) and the second traction rope (4) are respectively introduced into the two ends of the traction roller (53) through the wire passing holes (103).

9. The fork foot of a four-wheel ride-on forklift according to claim 8, characterized in that: An arc-shaped strip (11) is provided in the groove (101) at a position close to the wire-passing hole (103), and is used to support the first traction rope (3) and the second traction rope (4) passing through the wire-passing hole (103).

10. The fork foot of a four-wheel ride-on forklift according to claim 1, characterized in that: A shield (12) for protecting the first driving component (5) is fixed to the vertical section of the fork leg body (1).

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