A multi-functional fork carriage assembly and a fork truck thereof

Abstract

This invention relates to the field of forklift technology and discloses a multi-functional forklift assembly and its forklift, including a first hydraulic rod, a hydraulic press, a multi-functional forklift assembly, a cab, and a mobile chassis. In this invention, the insert plate structures on the left and right movable plates are relatively movable and enter the bottom of the material for transfer. When transferring the material, firstly, under the hydraulic extension and rotation of the hydraulic press, the position of the insert plate structure is such that the first extension rod drives the insert plate structure to the middle position on the left and right sides of the material, and drives the two third hydraulic rods to extend and retract, causing the inner side of the insert plate structure to abut against the left and right sides of the material. Secondly, the inner side of the insert plate structure slides downward on both sides of the material. Finally, when the insert plate structure slides downward between the upper and lower materials, it will elastically insert into the gap, so that the insert plate structure on the side of the movable plate is relatively movable and inserted into the bottom of the material, completing the insertion and removal of the material. This avoids the problem of materials being stacked and difficult to insert and transfer, and achieves precise material handling.

Description

Technical Field

[0001] This invention relates to the field of forklift technology, specifically a multi-functional forklift assembly and a forklift thereof. Background Technology

[0002] Forklifts are industrial handling vehicles, referring to various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. Existing technology mainly achieves the effect of inserting and transferring materials by lifting the fork assembly. For materials stacked high, insertion is usually performed at the bottom to transfer a large amount of material at once. They are mainly used for loading, unloading, and handling palletized goods in ship holds, carriages, and containers, and are indispensable equipment in pallet and container transportation.

[0003] However, the forklift assembly needs to be inserted into the pallet below the material to lift and transfer it. When there is no pallet to provide space for the forklift assembly to insert the material, the material can only be manually moved onto the forklift assembly, which is not convenient for the forklift assembly to transfer the material. This causes problems such as difficulty in inserting and transferring materials when they are stacked together. In addition, the lifting height of the forklift is limited, so it cannot handle materials that are far away or at a high distance. Lifting tall materials from the bottom at once can easily cause the center of gravity of the material to be unstable and tip over, and it is not possible to accurately handle the materials. Summary of the Invention

[0004] The present invention provides a multifunctional forklift assembly and a forklift thereof, which overcomes the shortcomings described in the background art.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A forklift includes a first hydraulic rod, a hydraulic press, a multi-functional fork carriage assembly, a cab, and a mobile chassis. The cab for drive control is fixed to the upper end of the mobile chassis. There are two first hydraulic rods, and the output ends of the two first hydraulic rods respectively press against the side of the hydraulic press. The cab drives the first hydraulic rods to extend and retract via electrical signals, and causes the hydraulic press to rotate within the mobile chassis. The cab also drives the hydraulic press to extend and retract hydraulically via electrical signals, and causes the multi-functional fork carriage assembly at the upper end of the hydraulic press to lift and transfer materials.

[0007] The multi-functional fork assembly includes an insertion component, a second hydraulic rod, a movable rod, a connecting plate, and a first telescopic rod. The first telescopic rod has a movable second hydraulic rod on its side. The top of the first telescopic rod is movably fixed inside the connecting plate via the movable rod. The insertion component is fixed to the side of the connecting plate. The output end of the hydraulic press is connected to and drives the first telescopic rod to extend and retract. When the hydraulic press extends, retracts, and rotates, the output end of the second hydraulic rod hydraulically pushes the connecting plate with the rotation and extension frequency of the hydraulic press.

[0008] A multifunctional forklift assembly is applied to the aforementioned forklift. The insertion assembly includes a support plate, an insertion plate structure, a third hydraulic rod, a second telescopic rod, a movable plate, and rails. The third hydraulic rod is symmetrically arranged on the left and right sides of the support plate. Rails are arranged on the left and right sides of the support plate, and the movable plate moves along the rails. The second telescopic rod at the output end of the third hydraulic rod pushes the movable plate. An insertion plate structure is provided on the side of the movable plate, and the insertion plate structures on the left and right sides are symmetrically distributed. The insertion plate structure moves relative to the material and inserts into the bottom of the material.

[0009] Furthermore, the insert plate structure includes a rotating rod, an insert plate, a vertical plate, a toothed plate, and a hydraulic actuator. The insert plate rotates and moves on the side of the vertical plate via the rotating rod. The hydraulic actuator is located on the vertical plate. The toothed plate at the output end of the hydraulic actuator moves horizontally and causes the rotating rod to rotate through the meshing of the toothed plate. The hydraulic actuator is located on the side of the movable plate.

[0010] Furthermore, the rotating rod is provided with a metal block, a rotating tube and a fixing rod. The fixing rod is fixed to the side of the vertical plate by the metal block. The insert plate is set on the outside of the rotating tube. The rotating tube rotates in the middle bearing of the fixing rod and meshes with the surface of the toothed plate.

[0011] Furthermore, the insert plate is provided with a triangular plate, a spring and a force plate. The force plate is fixed on the outside of the rotating tube. The left and right ends of the spring are connected to the middle position of the force plate and the triangular plate. The triangular plate moves and rotates on both sides of the force plate, and the triangular plate moves elastically through the spring.

[0012] Compared with existing technologies, this technical solution has the following advantages:

[0013] In this invention, for every meter the first telescopic rod rises, the cockpit electrical signal drives the first hydraulic rod to hydraulically push the hydraulic press, causing the first telescopic rod at the output end of the hydraulic press to rotate. At this time, the first telescopic rod performs lifting and lowering movements through the hydraulic extension and retraction of the hydraulic press. The first telescopic rod rotates at a 10° angle within the movable rod, and under the hydraulic push of the second hydraulic rod, the connecting plate remains in a vertical state, preventing the insertion assembly from tilting. Furthermore, the hydraulic press hydraulically pushes the first telescopic rod a relatively long distance, allowing the cockpit to drive the insertion assembly to transfer and lift materials at rounded corner positions. By using hydraulic lifting with the hydraulic press, the insertion assembly is kept in a horizontal state to achieve lifting and transferring materials at farther or higher positions, preventing the insertion assembly from having limited lifting height and avoiding the difficulty of transferring materials at higher or farther positions.

[0014] In this invention, the cockpit electrical signal drives the third hydraulic rod to move the connecting plate, causing the movable plate to translate along the rail. This allows the insert plate structures on the left and right movable plates to move relative to each other and enter the bottom of the material for transfer. When transferring the material, firstly, under the hydraulic extension and rotation of the hydraulic press, the first extension rod moves the insert plate structure to the middle position on both sides of the material, and drives the two third hydraulic rods to extend and retract, causing the inner side of the insert plate structure to abut against the left and right sides of the material. Secondly, the hydraulic press is controlled to move downward, and then the inner side of the insert plate structure slides downward on both sides of the material. Finally, when the insert plate structure slides down between the upper and lower materials, it will elastically insert into the gap, thereby driving the third hydraulic rods to extend and retract again, causing the insert plate structures on the sides of the movable plate to move relative to each other and insert into the bottom of the material, completing the insertion and removal of the material. This avoids the problem of materials being stacked and difficult to insert and transfer, achieving precise material handling. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is an overall diagram of the present invention.

[0017] Figure 2 This is a side view of the fork.

[0018] Figure 3 This is a planar schematic diagram of the inserted component.

[0019] Figure 4 This is a side view of the insert structure.

[0020] Figure 5 This is a schematic diagram showing the side of the rotating rod and the rotation of the insert plate.

[0021] Figure 6 This is a three-dimensional schematic diagram of the insert plate.

[0022] In the diagram: First hydraulic rod-1, hydraulic press-2, multi-functional fork assembly-3, cab-4, mobile chassis-5, insertion assembly-31, second hydraulic rod-32, movable rod-33, connecting plate-34, first telescopic rod-35, support plate-311, insertion plate structure-312, third hydraulic rod-313, second telescopic rod-314, movable plate-315, rotating rod-3121, insertion plate-3122, vertical plate-3123, toothed plate-3124, hydraulic device-3125, metal block-211, rotating pipe-212, fixed rod-213, triangular plate-221, spring-222, force plate-223. Detailed Implementation

[0023] like Figures 1 to 6As shown, the present invention proposes a forklift, including a first hydraulic rod 1, a hydraulic press 2, a multi-functional fork assembly 3, a cab 4, and a mobile chassis 5. The cab 4 for drive control is fixed on the upper end of the mobile chassis 5. There are two first hydraulic rods 1, and the output ends of the two first hydraulic rods 1 respectively press against the side of the hydraulic press 2. The cab 4 drives the first hydraulic rods 1 to extend and retract with electrical signals, and causes the hydraulic press 2 to move and rotate inside the mobile chassis 5. The cab 4 also drives the hydraulic press 2 to extend and retract hydraulically with electrical signals, and causes the multi-functional fork assembly 3 on the upper end of the hydraulic press 2 to lift and transfer materials.

[0024] The multi-functional fork assembly 3 includes an insertion component 31, a second hydraulic rod 32, a movable rod 33, a connecting plate 34, and a first telescopic rod 35. The first telescopic rod 35 has a movable second hydraulic rod 32 on its side. The top of the first telescopic rod 35 is movably fixed inside the connecting plate 34 via the movable rod 33. The insertion component 31 is fixed to the side of the connecting plate 34. The output end of the hydraulic press 2 is connected to and drives the first telescopic rod 35 to extend and retract. When the hydraulic press 2 extends, retracts, and rotates, the output end of the second hydraulic rod 32 hydraulically pushes the connecting plate 34 with the rotation and extension frequency of the hydraulic press 2.

[0025] Furthermore, the angle of the second hydraulic rod 32 after hydraulically pushing the connecting plate 34 and the angle of the first telescopic rod 35 after telescopic rotation are controlled and driven in a 1:1 ratio. The telescopic movement of the first telescopic rod 35 is driven by the hydraulic press 2 itself, and the rotation of the first telescopic rod 35 is driven by the hydraulic rod 1. When the first hydraulic rod 1 and the hydraulic press 2 work together, the first telescopic rod 35 is telescopically rotated. When the first telescopic rod 35 at the output end of the hydraulic press 2 is in a horizontal state, the second hydraulic rod 32 is tilted at 40°, and at this time the connecting plate 34 and the insertion assembly 31 are in a vertical state. In this invention, for every 10° tilt of the first telescopic rod 35, the cockpit 4 drives the first hydraulic rod 1 to hydraulically push the hydraulic press 2, and causes the first telescopic rod 35 at the output end of the hydraulic press 2 to rotate. At this time, the first telescopic rod 35 is raised and lowered by hydraulic extension and retraction of the hydraulic press 2. The first telescopic rod 35 is tilted and rotated 10° within the movable rod 33, and the connecting plate 34 is kept vertical under the hydraulic push of the second hydraulic rod 32. The extension and retraction of the first telescopic rod 35 by the second hydraulic rod 32 and the hydraulic press 2 are controlled according to the proportional drive to prevent the insertion component 31 from tilting. The hydraulic press 2 hydraulically pushes the first telescopic rod 35 a long distance, so that the cab 4 drives the insertion component 31 to transfer and lift materials at the rounded corner position. After the hydraulic lifting of the hydraulic press 2 is used, the insertion component 31 is kept in a horizontal state to transfer materials at a far or high position. This prevents the insertion component 31 from having a limited lifting height and avoids materials at a high or far position from being difficult to transfer, thus achieving precise material handling.

[0026] A multi-functional forklift assembly is applied to the forklift described above. The insertion assembly 31 includes a support plate 311, an insertion plate structure 312, a third hydraulic rod 313, a second telescopic rod 314, a movable plate 315, and rails 316. The third hydraulic rod 313 is symmetrically arranged on the left and right sides of the support plate 311. Rails 316 are arranged on the left and right sides of the support plate 311, and the movable plate 315 moves along the rails 316. The second telescopic rod 314 at the output end of the third hydraulic rod 313 pushes the movable plate 315. The insertion plate structure 312 is arranged on the side of the movable plate 315, and the insertion plate structures 312 on the left and right sides are symmetrically distributed. The insertion plate structure 312 moves relative to the material and inserts into the bottom of the material.

[0027] In this invention, the cockpit 4 uses an electrical signal to drive the third hydraulic rod 313 to move the movable plate 315, causing the movable plate 315 to translate along the rail 316. This allows the insert structures 312 on the left and right movable plates 315 to move relative to each other and enter the bottom of the material for transfer. When transferring the material, firstly, the position of the insert structure 312 is controlled by the hydraulic extension and rotation of the hydraulic press 2, causing the first extension rod 35 to move the insert structure 312 to the middle position on the left and right sides of the material. The two third hydraulic rods 313 are then extended and retracted, causing the inner side of the insert structure 312 to abut against the left and right sides of the material. Secondly, the hydraulic press 2 is controlled to move downward, causing the inner side of the insert structure 312 to slide downward on both sides of the material. Finally, when the insert structure 312 slides downward between the upper and lower materials, it will elastically insert into the gap, thereby driving the third hydraulic rod 313 to extend and retract again. This causes the insert structures 312 on the sides of the movable plate 315 to move relative to each other and insert into the bottom of the material, completing the insertion and removal of the material and avoiding the problem of materials being stacked and difficult to insert and transfer.

[0028] The insert plate structure 312 includes a rotating rod 3121, an insert plate 3122, a vertical plate 3123, a toothed plate 3124, and a hydraulic actuator 3125. The insert plate 3122 rotates on the side of the vertical plate 3123 via the rotating rod 3121. The hydraulic actuator 3125 is located on the vertical plate 3123. The toothed plate 3124 at the output end of the hydraulic actuator 3125 moves horizontally, causing the rotating rod 3121 to rotate through the meshing of the toothed plate 3124. The hydraulic actuator 3125 is located on the side of the movable plate 315.

[0029] Furthermore, the hydraulic actuator 3125 is electrically connected to the interior of the control cabin 4. Under the control of the control cabin 4, the hydraulic actuator 3125 drives the toothed plate 3124 to extend and retract hydraulically. The insert plate 3122 has a triangular structure, and the rotation angle of the insert plate 3122 is within the range of 140°. The initial angle of the insert plate 3122 is a vertical tilt of 10°. After the insert plate 3122 rotates 140° counterclockwise and stops, it is in a downward tilt of 40°. Before the two insert plate structures 312 slide downward against the sides of the material, the hydraulic actuator 3125 hydraulically extends and retracts to move the toothed plate 3124. The toothed plate 3124 engages with the rotating rod 3121 and rotates. At this time, the insert plate 3122 is rotated by the rotating rod 3121 to a downward tilt of 40°. Thus, the top of the insert plate 3122 elastically presses against the side of the material and slides on both sides of the material through the elasticity of the insert plate 3122. Under the elasticity of the insert plate 3122, when the vertical plate 3123 moves downward to the gap between the upper and lower materials, the insert plate 3122 will be inserted into the gap under the elasticity. When the vertical plate 3123 moves downward slightly beyond the gap position, the insert plate 3122 will not disengage from the gap under its elasticity.

[0030] Furthermore, there is another insertion method when inserting materials. First, under the hydraulic push of the hydraulic device 3125, the insert plate 3122 rotates through the meshing of the toothed plate 3124 with the rotating rod 3121, causing the insert plate 3122 to rotate to a 10° tilted vertical state. At this time, the insert plate 3122 abuts against the side of the vertical plate 3123. Second, under the control of the control cabin 4, the insert plate structure 312 moves to both sides of the material. At this time, the two third hydraulic rods 313 extend and retract the second telescopic rod 314 at the output end, and cause the insert plate structure 3122 on the side of the two movable plates 315 to extend and retract. The material is directly clamped on both sides. Due to the triangular shape of the insert plate 3122, the two inclined insert plate structures 312 are wider at the top and narrower at the bottom. With the vertical plate 3123 clamping each other, the material is easily clamped and transferred. This method of inserting and picking up materials is convenient for materials that are wider at the top and narrower at the bottom. When the insert plate 3122 is tilted to the left by 10°, the left side is in a vertical state. At this time, the two opposite insert plates 3122 are in a parallel state. By clamping the material from the left and right sides through the two insert plates 3122, materials with hard outer shells can be clamped and transferred.

[0031] The rotating rod 3121 is provided with a metal block 211, a rotating tube 212 and a fixing rod 213. The fixing rod 213 is fixed to the side of the vertical plate 3123 by the metal block 211. The insert plate 3122 is arranged outside the rotating tube 212. The rotating tube 212 rotates in the middle bearing of the fixing rod 213 and the rotating tube 212 meshes with the surface of the toothed plate 3124.

[0032] Furthermore, a toothed block is provided on the outer side of the rotating tube 212. The toothed block on the outer side of the rotating tube 212 is positioned relative to the toothed plate 3124 on the outer side of the rotating tube 212. Through the meshing of the toothed block and the surface of the toothed plate 3124, when the toothed plate 3124 is hydraulically pushed by the hydraulic device 3125, the rotating tube 212 rotates through the meshing of the toothed plate 3124, and the rotating tube 212 rotates outside the fixed rod 213.

[0033] The insert plate 3122 is provided with a triangular plate 221, a spring 222 and a force plate 223. The force plate 223 is fixed on the outside of the rotating tube 212. The left and right ends of the spring 222 are connected to the middle position of the force plate 223 and the triangular plate 221. The triangular plate 221 moves and rotates on both sides of the force plate 223, and the triangular plate 221 moves elastically through the spring 222.

[0034] Furthermore, the triangular plate 221 is made of plastic, making it easy to deform and slide. Two springs 222 are provided, which are fixed in parallel between the force plate 223 and the triangular plate 221. When the triangular plate 221 is against the two sides of the material, the bending elasticity of the springs 222 causes the sides of the triangular plate 221 to press against the two sides of the material. When it reaches the gap between the upper and lower materials, the bending elasticity of the springs 222 causes the top of the triangular plate 221 to insert. At this time, the insertion plate structure 312 continues to move downward, and the top of the triangular plate 221 just inserts into the gap. When the insertion plate structure 312 moves downward, the tilted triangular plate 221 will insert into the gap. When the insertion plate structure 312 continues to move downward, the triangular plate 221 will slightly tilt the material. At this time, the operator can see the material being inserted and picked up when performing driving operations in the cockpit 4. At the same time, the material is accurately inserted and picked up, avoiding the insertion plate 3122 from leaving the gap at the bottom of the material and affecting the insertion and picking up. This achieves the effect of transferring stacked materials.

[0035] It is necessary to explain that when inserting the bottom material, it is only necessary to control the insert plate 3122 to keep it tilted downward at 40° and to make the insert plate 3122 touch the ground. This allows the insert plate structure 312 to move relatively, and the triangular plate 221 to slide on the ground and insert under the bottom material, thereby avoiding the stacking of materials and making them difficult to insert and transfer.

[0036] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A forklift, characterized in that, The device includes a first hydraulic rod, a hydraulic press, a multi-functional forklift assembly, a cab, and a mobile chassis. The cab for drive control is fixed to the upper end of the mobile chassis. There are two first hydraulic rods, and the output ends of the two first hydraulic rods press against the side of the hydraulic press. The cab drives the first hydraulic rods to extend and retract via electrical signals, and causes the hydraulic press to rotate and move inside the mobile chassis. The cab also drives the hydraulic press to extend and retract hydraulically via electrical signals, and causes the multi-functional forklift assembly at the upper end of the hydraulic press to lift and transfer materials. The multi-functional fork assembly includes an insertion component, a second hydraulic rod, a movable rod, a connecting plate, and a first telescopic rod. The first telescopic rod has a movable second hydraulic rod on its side. The top of the first telescopic rod is movably fixed inside the connecting plate via the movable rod. The insertion component is fixed to the side of the connecting plate. The output end of the hydraulic press is connected to and drives the first telescopic rod to extend and retract. When the hydraulic press extends, retracts, and rotates, the output end of the second hydraulic rod hydraulically pushes the connecting plate with the rotation and extension frequency of the hydraulic press. The insertion assembly includes a support plate, an insertion plate structure, a third hydraulic rod, a second telescopic rod, a movable plate, and rails. The third hydraulic rod is symmetrically arranged on the left and right sides of the support plate. Rails are arranged on the left and right sides of the support plate, and the movable plate moves along the rails. The second telescopic rod at the output end of the third hydraulic rod pushes the movable plate. An insertion plate structure is provided on the side of the movable plate, and the insertion plate structures on the left and right sides are symmetrically distributed. The insertion plate structure moves relative to the material and inserts into the bottom of the material. The insert plate structure includes a rotating rod, an insert plate, a vertical plate, a toothed plate, and a hydraulic actuator. The insert plate rotates and moves on the side of the vertical plate via the rotating rod. The hydraulic actuator is located on the vertical plate. The toothed plate at the output end of the hydraulic actuator moves horizontally and causes the rotating rod to rotate through the meshing of the toothed plate. The hydraulic actuator is located on the side of the movable plate. The rotating rod is provided with a metal block, a rotating tube and a fixing rod. The fixing rod is fixed to the side of the vertical plate by the metal block. The insert plate is set on the outside of the rotating tube. The rotating tube rotates in the middle bearing of the fixing rod and the rotating tube meshes with the surface of the toothed plate. The insert plate is equipped with a triangular plate, a spring, and a force plate. The force plate is fixed on the outside of the rotating tube. The left and right ends of the spring are connected to the middle position of the force plate and the triangular plate. The triangular plate moves and rotates on both sides of the force plate, and the triangular plate moves elastically through the spring.

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