Forklift ejector

Abstract

The utility model relates to the technical field of forklifts, in particular to a forklift pusher which comprises a lifting plate and a pushing plate installed on the lifting plate and capable of being adjusted in a telescopic mode, a plurality of pallet forks are arranged at the left end of the lifting plate, trapezoid grooves are formed in the opposite faces of every two adjacent pallet forks, and a telescopic assembly is arranged above the lifting plate and located between two side columns. The telescopic assembly is connected with a push plate, trapezoid blocks are arranged at the positions, corresponding to the trapezoid grooves, of the lower surface of the push plate, and extension plates for increasing the contact area are arranged on the two sides of the push plate. According to the forklift ejector, the telescopic assembly is installed on the lifting plate, the two oil cylinders are matched with the two second supporting rods and the two first supporting rods, and the push plate is in inserted connection fit with the trapezoidal block and the trapezoidal groove, so that horizontal movement of the push plate on the pallet fork is achieved, the moving stability of the push plate is improved, the extension plates are inserted into the two sides of the push plate, and the push plate is convenient to move. And under the cooperation of the first conical teeth and the second conical teeth, synchronous rotation of the threaded rods is achieved, then the two extending plates move in the opposite directions, and pressure concentrated in the middle position is reduced.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, specifically a forklift ejector. Background Technology

[0002] A forklift pusher, also known as a forklift pusher, is an auxiliary tool installed on a forklift, mainly used to push goods off shelves to improve loading and unloading efficiency.

[0003] Utility model with announcement number CN210313361U discloses a pushing device for a forklift pusher, including a single and double pallet fork assembly. A slide rail frame is fixedly connected to the top left side of the single and double pallet fork assembly. A push frame is provided on the upper right side of the single and double pallet fork assembly. A first connecting rod is symmetrically hinged to the left corner of the single and double pallet fork assembly. A second connecting rod is hinged to the upper right end of the first connecting rod. The lower right end of the second connecting rod is hinged to the lower left side of the push frame. A first sliding rod is slidably connected between the slide rails of the slide rail frame. A third connecting rod is symmetrically hinged to the first sliding rod. The third connecting rod is cross-hinged with the middle of the first connecting rod.

[0004] The aforementioned technical solution, with its dual-cylinder push-out mechanism, can be used for operations involving heavier loads and harsher conditions. Furthermore, the design ensures that the thrust of both cylinders acts simultaneously on the same connecting plate, avoiding the strain on the overall rigidity of the attachment caused by uneven cylinder thrust. However, when pushing wide loads, the small push plate area, pushing the load into the middle, can easily cause deformation and damage. It cannot adjust the width based on the load not being pushed, and the pusher lacks stable movement on the forklift forks, resulting in a non-horizontal relationship between the pusher and the forks, affecting the horizontal pushing of the load. Utility Model Content

[0005] The purpose of this invention is to provide a forklift ejector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A forklift pusher includes a lifting plate and a telescopic and adjustable push plate mounted on the lifting plate. The left end of the lifting plate is provided with a plurality of forks, and trapezoidal grooves are formed on the opposite side of each pair of adjacent forks. Side posts are provided near both ends of the upper surface of the lifting plate, and a first limiting groove is formed at the top of each side post. First hinge seats are symmetrically provided on the upper surface of the lifting plate. A telescopic assembly is provided above the lifting plate between the two side posts, and the telescopic assembly is connected to the push plate. Trapezoidal blocks are provided on the lower surface of the push plate at positions corresponding to the trapezoidal grooves. Limiting posts are provided on the rear end face of the push plate at positions corresponding to the side posts, and a second limiting groove is formed at the top of each limiting post. Second hinge seats are provided on the rear end face of the push plate at positions corresponding to the first hinge seats. Extension plates with increased contact area are provided on both sides of the push plate.

[0008] An adjusting rod is provided on the top of the push plate. The adjusting rod extends to the middle of the push plate and is symmetrically provided with first conical teeth. Each first conical tooth is symmetrically engaged with a second conical tooth. A threaded rod is provided at the central axis of the second conical tooth. The top of the adjusting rod passes through the push plate and is provided with a handwheel at the end. A slot is provided on the side wall of the push plate at the position corresponding to the threaded rod.

[0009] The extension plate is provided with insert plates at the locations corresponding to the slots, and each insert plate has a screw groove at its end.

[0010] The telescopic assembly includes two sets of first support rods and two sets of second support rods. Each of the top ends of the first support rod is provided with a sliding column. The bottoms of the two first support rods are rotatably connected through a second connecting seat. The tops of the two second support rods are rotatably connected through a first connecting seat. The outer ends of the second support rods are rotatably connected to the corresponding first hinge seat and second hinge seat, respectively. A hydraulic cylinder is provided in the middle of the second support rod on the right side. The bottom of the hydraulic cylinder is rotatably connected to one of the second support rods, and the telescopic end of the hydraulic cylinder is rotatably connected to the other second support rod.

[0011] Furthermore, the lifting plate and the forks are integrally formed, the forks are evenly spaced, and the side posts and the lifting plate are integrally formed.

[0012] In this invention, with the cooperation of multiple forks, the lifting plate moves up and down, allowing the forks to be inserted into the bottom of the object to be transported for lifting and transport. With the cooperation of the two side columns, it is convenient to limit the position of the second support rod and the end of the first support rod near the right side of the telescopic assembly.

[0013] Specifically, the trapezoidal block and the push plate are integrally formed, the width of the outer wall of the trapezoidal block is adapted to the width of the inner wall of the trapezoidal groove, and the trapezoidal block slides in the trapezoidal groove.

[0014] In this invention, the trapezoidal block and the trapezoidal slot are inserted to enable the push plate to move horizontally on the forks, thereby increasing the stability of horizontal movement and reducing the misalignment between the forks and the push plate, which would affect the pushing and discharging of objects.

[0015] It should be noted that the adjusting rod is rotatably connected to the push plate, and a screw hole is provided on the right end face of the push plate near the top. A positioning bolt is provided in the screw hole, and the width of the outer wall of the push plate is adapted to the length of the outer wall of the lifting plate.

[0016] In this invention, the positioning bolt is threadedly connected to the screw hole, and the positioning bolt is inserted into the interior. One end of the positioning bolt is tightly fitted with the adjusting rod, and the adjusting rod is fixed in rotation position under the action of friction. The outer diameter of the positioning bolt is larger than the inner diameter of the screw hole, which facilitates manual rotation for installation or disassembly.

[0017] Furthermore, the first conical tooth is welded and fixed to the adjusting rod, the second conical tooth meshes with the corresponding first conical tooth, the threaded rod is welded and fixed to the second conical tooth, the threaded rod extends into the slot, the outer diameter of the threaded rod matches the inner diameter of the threaded groove, and the center of the handwheel is fixedly connected to the top of the adjusting rod by a screw.

[0018] In this invention, the first conical tooth meshes with the second conical tooth, and the rotation of the adjusting rod drives the threaded rod to rotate synchronously. The threaded rod is threadedly connected to the threaded groove, enabling the insert plate to move horizontally on the threaded rod, thereby enabling the two extension plates to move synchronously towards each other. When the threaded rod rotates in the forward direction, the insert plate moves outward, increasing the area between the extension plate and the push plate, which facilitates pushing the object that needs to be moved by forklift, increases the contact area, and reduces the damage caused by the pressure concentrated on the middle part of the object. Conversely, when the threaded rod rotates in the reverse direction, the extension plate and the push plate are tightly fitted together, reducing the area between them and reducing the footprint.

[0019] Secondly, the height of the extension plate is adapted to the height of the push plate, the insert plate and the extension plate are integrally formed, and the width of the outer wall of the insert plate is adapted to the width of the inner wall of the slot.

[0020] In this invention, the insert plate and the slot are tightly connected and fitted together, and the extension plate and the push plate are closely fitted together, which increases the aesthetic appeal of the appearance when stored.

[0021] Specifically, the sliding column is rotatably connected to the first support rod, and the corresponding sliding column is slidably inserted into the corresponding first limiting groove and second limiting groove. The second support rod on the right side is rotatably connected to the center of the side wall of the first support rod on the right side near the center via a pin. The first support rod on the left side is rotatably connected to the center of the side wall of the second support rod on the left side near the center via a pin.

[0022] In this invention, the sliding column slides up and down in the corresponding first and second limiting grooves. When the telescopic arm of the hydraulic cylinder extends, the angle between the two connecting second support rods around the first connecting seat increases, and the total length between the second support rod and the first support rod increases, so that the push plate moves outward from the left side of the lifting plate, thereby pushing and discharging the object forked on the forks. When the telescopic arm of the hydraulic cylinder shortens, the angle between the two connecting second support rods around the first connecting seat decreases, so that the push plate moves inward from the outside of the lifting plate.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. This utility model features a telescopic assembly mounted on a lifting plate. Two hydraulic cylinders work in conjunction with two second support rods and two first support rods. The push plate is inserted into a trapezoidal block and a trapezoidal groove, enabling the push plate to move horizontally on the forks and increasing the stability of the push plate's movement. Extension plates are inserted into both sides of the push plate, and the extension plates are threadedly connected to the threaded rods on the push plate via insert plates. The handwheel rotation drives the adjustment rotation, and with the cooperation of the first and second conical teeth, the threaded rods rotate synchronously, thereby allowing the two extension plates to move towards each other. This allows for the stable pushing and discharging of objects of different widths, reducing pressure concentration in the middle position and minimizing the deformation and damage to the pushed objects.

[0025] 2. This utility model sets up a handwheel and an adjusting rod for rotational cooperation. One hand rotates the handwheel to adjust the distance between the extension plate and the push plate. The positioning bolt is threadedly connected to the screw hole. Under the action of friction, the positioning bolt fixes the position of the adjusting rod after rotation. The first hinge seat and the second hinge seat cooperate to rotate and connect with the bottom end of the corresponding first support rod, so as to realize the rotational cooperation between the first support rod and the push plate and the lifting plate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the push state structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the combined structure of the fork and telescopic assembly of this utility model;

[0029] Figure 4 This is a schematic diagram of the push plate and extension plate combination structure of this utility model;

[0030] Figure 5 This is an exploded view of the push plate and extension plate of this utility model;

[0031] Figure 6 For the present utility model Figure 5 Enlarged schematic diagram of the structure at part A in the middle.

[0032] The meanings of the labels in the diagram are as follows:

[0033] 1. Lifting plate; 10. Forks; 100. Trapezoidal groove; 11. Side column; 110. First limiting groove; 12. First hinge seat;

[0034] 2. Telescopic assembly; 20. First support rod; 200. Sliding column; 21. Second support rod; 22. First connecting seat; 23. Second connecting seat; 24. Hydraulic cylinder;

[0035] 3. Push plate; 30. Trapezoidal block; 31. Limiting post; 310. Second limiting groove; 32. Second hinge seat; 33. Adjusting rod; 330. First conical tooth; 331. Second conical tooth; 332. Threaded rod; 333. Handwheel; 34. Screw hole; 340. Positioning bolt; 35. Slot;

[0036] 4. Extension plate; 40. Insert plate; 400. Screw groove. Detailed Implementation

[0037] 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.

[0038] Please see Figures 1-6 This embodiment provides a technical solution:

[0039] A forklift pusher includes a lifting plate 1 and a telescopic and adjustable push plate 3 mounted on the lifting plate 1. The left end of the lifting plate 1 is provided with a plurality of forks 10. A trapezoidal groove 100 is provided on one side of each pair of adjacent forks 10. Side posts 11 are provided on the upper surface of the lifting plate 1 near both ends. The lifting plate 1 and the forks 10 are integrally formed. The forks 10 are distributed at equal intervals. The side posts 11 and the lifting plate 1 are integrally formed.

[0040] In this utility model, with the cooperation of multiple forks 10, the lifting plate 1 moves up and down, so that the forks 10 can be inserted into the bottom of the object to be transported for lifting and transport. With the cooperation of the two side columns 11, it is convenient to limit the position of the ends of the second support rod 21 and the first support rod 20 near the right side of the telescopic assembly 2.

[0041] Furthermore, a first limiting groove 110 is provided at the top of the side column 11, and a first hinge seat 12 is symmetrically provided on the upper surface of the lifting plate 1. A telescopic component 2 is provided above the lifting plate 1 between the two side columns 11. The telescopic component 2 is connected to the push plate 3. A trapezoidal block 30 is provided on the lower surface of the push plate 3 at the corresponding position of the trapezoidal groove 100. The trapezoidal block 30 and the push plate 3 are integrally formed. The width of the outer wall of the trapezoidal block 30 is adapted to the width of the inner wall of the trapezoidal groove 100. The trapezoidal block 30 slides in the trapezoidal groove 100.

[0042] In this utility model, the trapezoidal block 30 is inserted into the trapezoidal groove 100 to enable the push plate 3 to move horizontally on the fork 10, thereby increasing the stability of horizontal movement and reducing the misalignment between the fork 10 and the push plate 3, which would affect the pushing and discharging of objects.

[0043] Specifically, a limiting post 31 is provided on the rear end face of the push plate 3 at the position corresponding to the side post 11, and a second limiting groove 310 is provided on the top of the limiting post 31. A second hinge seat 32 is provided on the rear end face of the push plate 3 at the position corresponding to the first hinge seat 12. An extension plate 4 with an increased contact area is provided on both sides of the push plate 3.

[0044] Secondly, the top of the push plate 3 is provided with an adjusting rod 33, which extends to the middle of the push plate 3 and is rotatably connected to the push plate 3. A screw hole 34 is provided on the right end face of the push plate 3 near the top, and a positioning bolt 340 is provided in the screw hole 34. The width of the outer wall of the push plate 3 is adapted to the length of the outer wall of the lifting plate 1.

[0045] In this utility model, the positioning bolt 340 is threadedly connected to the screw hole 34. The positioning bolt 340 is inserted into the interior, and one end of the positioning bolt 340 is tightly fitted with the adjusting rod 33. Under the action of friction, the rotation position of the adjusting rod 33 is fixed. The outer diameter of the positioning bolt 340 is larger than the inner diameter of the screw hole 34, which facilitates manual rotation for installation or disassembly.

[0046] It should be noted that the adjusting rod 33 is symmetrically provided with first conical teeth 330, and each first conical tooth 330 is symmetrically meshed with second conical teeth 331. A threaded rod 332 is provided at the central axis of the second conical tooth 331. The top of the adjusting rod 33 passes through the push plate 3, and a handwheel 333 is provided at the end. A slot 35 is provided on the side wall of the push plate 3 at the position corresponding to the threaded rod 332.

[0047] Furthermore, an insertion plate 40 is provided on the extension plate 4 at the position corresponding to the slot 35, and each end of the insertion plate 40 is provided with a screw groove 400.

[0048] Specifically, the first conical tooth 330 is welded and fixed to the adjusting rod 33, the second conical tooth 331 meshes with the corresponding first conical tooth 330, the threaded rod 332 is welded and fixed to the second conical tooth 331, the threaded rod 332 extends into the slot 35, the outer diameter of the threaded rod 332 is adapted to the inner diameter of the threaded groove 400, and the center of the handwheel 333 is fixedly connected to the top of the adjusting rod 33 by a screw.

[0049] In this invention, the first conical tooth 330 meshes with the second conical tooth 331. The rotation of the adjusting rod 33 drives the threaded rod 332 to rotate synchronously. The threaded rod 332 is threadedly connected to the threaded groove 400, enabling the insert plate 40 to move horizontally on the threaded rod 332. This, in turn, enables the two extension plates 4 to move synchronously towards each other. When the threaded rod 332 rotates in the forward direction, the insert plate 40 moves outward, increasing the area between the extension plate 4 and the push plate 3. This facilitates pushing the object that needs to be forked and transported, increases the contact area, and reduces the damage caused by the concentrated squeezing pressure on the middle part of the object. Conversely, when the threaded rod 332 rotates in the reverse direction, the extension plate 4 and the push plate 3 fit tightly together, reducing the area between them and thus reducing the floor space occupied.

[0050] It is worth adding that the height of the extension plate 4 is adapted to the height of the push plate 3, the insert plate 40 and the extension plate 4 are integrally formed, and the width of the outer wall of the insert plate 40 is adapted to the width of the inner wall of the slot 35.

[0051] In this invention, the insert plate 40 and the slot 35 are tightly connected and fitted together, and the extension plate 4 and the push plate 3 are tightly fitted together, which increases the aesthetic appearance when stored.

[0052] In addition, the telescopic assembly 2 includes two sets of first support rods 20 and two sets of second support rods 21. The top ends of the first support rods 20 are provided with sliding columns 200. The bottoms of the two first support rods 20 are rotatably connected through the second connecting seat 23. The tops of the two second support rods 21 are rotatably connected through the first connecting seat 22. The outer ends of the second support rods 21 are rotatably connected to the corresponding first hinge seat 12 and second hinge seat 32, respectively. A hydraulic cylinder 24 is provided in the middle of the second support rod 21 on the right side. The bottom of the hydraulic cylinder 24 is rotatably connected to one of the second support rods 21, and the telescopic end of the hydraulic cylinder 24 is rotatably connected to the other second support rod 21.

[0053] Furthermore, the sliding column 200 is rotatably connected to the first support rod 20, and the corresponding sliding column 200 is slidably inserted into the corresponding first limiting groove 110 and second limiting groove 310. The second support rod 21 on the right side is rotatably connected to the center of the side wall of the first support rod 20 on the right side near the center via a pin. The first support rod 20 on the left side is rotatably connected to the center of the side wall of the second support rod 21 on the left side near the center via a pin.

[0054] In this invention, the sliding column 200 slides up and down in the corresponding first limiting groove 110 and second limiting groove 310 respectively. When the telescopic arm of the hydraulic cylinder 24 is extended, the angle between the two connecting second support rods 21 around the first connecting seat 22 increases, and the total length between the second support rod 21 and the first support rod 20 increases, so that the push plate 3 moves outward from the left side of the lifting plate 1, thereby pushing and discharging the object forked on the fork 10. When the telescopic arm of the hydraulic cylinder 24 is shortened, the angle between the two connecting second support rods 21 around the first connecting seat 22 decreases, so that the push plate 3 moves inward from the outside of the lifting plate 1.

[0055] In this embodiment, when the forklift pusher is in use, the lifting plate 1 is first assembled and installed with the corresponding lifting platform on the forklift via the corresponding screw and chain. Then, the two first support rods 20 are rotatably connected to each other via the second connecting seat 23. The sliding column 200 on one of the first support rods 20 is inserted into the first limiting groove 110, and the sliding column 200 on the other first support rod 20 is inserted into the second limiting groove 310 on the limiting column 31. The two second support rods 21 are rotatably connected to each other via the second connecting seat 23. The center position at the junction of the first support rod 20 and the second support rod 21 is rotatably connected via a pin. The two hydraulic cylinders 24 are respectively fixedly installed between the two second support rods 21. The push plate 3 with the adjusting rod 33 is slidably inserted into the trapezoidal groove 100 via multiple trapezoidal blocks 30. The insert plate 40 with the screw groove 400 is inserted into the slot 35. The inner side of the extension plate 4 is tightly fitted to the outer wall of the push plate 3.

[0056] When the forks 10 lift an object, turn handwheel 333 according to the width of the stacked object.

[0057] When the threaded rod 332 rotates in the forward direction, the insert plate 40 moves outward, increasing the area between the extension plate 4 and the push plate 3. This facilitates the push plate 3 blocking the outer side of the stack. Then, the positioning bolt 340 is threadedly connected to the screw hole 34 to fix the position of the adjusting rod 33. This prevents the adjusting rod 33 from rotating during use and affecting the position of the extension plate 4, thus preventing it from falling onto the forklift. After being transported by the forklift, when it is necessary to push the object out onto the ground, the two hydraulic cylinders 24 are controlled to extend their telescopic arms. The total length of the first support rod 20 and the second support rod 21 is extended, and the push plate 3 moves horizontally outward from the right end of the fork 10 to push the object out of the fork 10. This facilitates quick and easy lifting and transport of goods and pushing them out of the fork 10 for stacking.

Claims

1. A forklift pusher, comprising a lifting plate and a telescopically adjustable push plate mounted on the lifting plate, characterized in that: The lifting plate has several forks on its left end, and trapezoidal grooves are opened on the opposite side of each pair of adjacent forks. Side posts are provided on the upper surface of the lifting plate near both ends, and a first limiting groove is opened on the top of each side post. First hinge seats are symmetrically provided on the upper surface of the lifting plate. A telescopic assembly is provided above the lifting plate between the two side posts. The telescopic assembly is connected to a push plate. Trapezoidal blocks are provided on the lower surface of the push plate at positions corresponding to the trapezoidal grooves. Limiting posts are provided on the rear end face of the push plate at positions corresponding to the side posts, and a second limiting groove is opened on the top of each limiting post. Second hinge seats are provided on the rear end face of the push plate at positions corresponding to the first hinge seats. Extension plates with increased contact area are provided on both sides of the push plate. An adjusting rod is provided on the top of the push plate. The adjusting rod extends to the middle of the push plate and is symmetrically provided with first conical teeth. Each first conical tooth is symmetrically engaged with a second conical tooth. A threaded rod is provided at the central axis of the second conical tooth. The top of the adjusting rod passes through the push plate and is provided with a handwheel at the end. A slot is provided on the side wall of the push plate at the position corresponding to the threaded rod. The extension plate is provided with insert plates at the locations corresponding to the slots, and each insert plate has a screw groove at its end. The telescopic assembly includes two sets of first support rods and two sets of second support rods. Each of the top ends of the first support rod is provided with a sliding column. The bottoms of the two first support rods are rotatably connected through a second connecting seat. The tops of the two second support rods are rotatably connected through a first connecting seat. The outer ends of the second support rods are rotatably connected to the corresponding first hinge seat and second hinge seat, respectively. A hydraulic cylinder is provided in the middle of the second support rod on the right side. The bottom of the hydraulic cylinder is rotatably connected to one of the second support rods, and the telescopic end of the hydraulic cylinder is rotatably connected to the other second support rod.

2. The forklift ejector according to claim 1, characterized in that: The lifting plate and the forks are integrally formed, the forks are evenly spaced, and the side posts and the lifting plate are integrally formed.

3. The forklift ejector according to claim 1, characterized in that: The trapezoidal block and the push plate are integrally formed. The width of the outer wall of the trapezoidal block is adapted to the width of the inner wall of the trapezoidal groove, and the trapezoidal block slides in the trapezoidal groove.

4. The forklift ejector according to claim 1, characterized in that: The adjusting rod is rotatably connected to the push plate. A screw hole is provided on the right end face of the push plate near the top. A positioning bolt is provided in the screw hole. The width of the outer wall of the push plate is adapted to the length of the outer wall of the lifting plate.

5. The forklift ejector according to claim 1, characterized in that: The first conical tooth is welded and fixed to the adjusting rod, the second conical tooth meshes with the corresponding first conical tooth, the threaded rod is welded and fixed to the second conical tooth, the threaded rod extends into the slot, the outer diameter of the threaded rod matches the inner diameter of the threaded groove, and the center of the handwheel is fixedly connected to the top of the adjusting rod by a screw.

6. The forklift ejector according to claim 1, characterized in that: The height of the extension plate is adapted to the height of the push plate, the insert plate and the extension plate are integrally formed, and the width of the outer wall of the insert plate is adapted to the width of the inner wall of the slot.

7. The forklift ejector according to claim 1, characterized in that: The sliding column is rotatably connected to the first support rod, and the corresponding sliding column is slidably inserted into the corresponding first limiting groove and second limiting groove. The second support rod on the right side is rotatably connected to the center of the side wall of the first support rod on the right side near the center via a pin. The first support rod on the left side is rotatably connected to the center of the side wall of the second support rod on the left side near the center via a pin.

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