Outdoor following type loading and unloading forklift

Abstract

The invention relates to the technical field of loading and unloading forklifts, in particular to an outdoor following type loading and unloading forklift which comprises a frame, a handle set, an inner portal frame set, an oil cylinder set, a lifting frame set and a pallet fork, the upper portion and the lower portion of each of the left side and the right side of a lifting frame are rotationally connected with two rolling wheels which extend into C-shaped steel door columns of an inner portal frame, and rolling connection is achieved; the upper and lower sides of the bottom of the inner door frame are also rotationally connected with two rollers which extend into the C-shaped steel door columns of the outer door frame to realize rolling connection; guide wheel sets are installed on the two sides of the top of the outer door frame, inserting pieces are installed, gaps on the two sides of the inner door column and the outer door column are adjusted to be even, and the inner door frame can move up and down more stably. The vehicle body is of a three-fulcrum stress structure. The electric driving wheel and the two front bearing wheels are large in wheel diameter, are made of solid rubber materials, are provided with anti-skid patterns on treads, and can be well suitable for being used in the outdoor environment. And the gap between the gate seat and the ground is 120mm, so that the vehicle passing performance is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of loading and unloading forklifts, in particular to an outdoor trailing loading and unloading forklift. Background Art

[0002] In recent years, with the rapid development of the national economy, the logistics service industry has also been developing rapidly, which has had an important impact on improving people's living standards. In the distribution business process of the logistics industry, it is often difficult to load and unload goods after the delivery vehicle arrives at the destination. Scattered goods can be handled by manual handling, but the efficiency is low and the labor intensity is high; while large goods or whole pallets of items can only be handled by forklifts. If the delivery location is in a remote area, it will take longer, which seriously affects the logistics efficiency. At the same time, electric stackers are not suitable for these distribution environments due to their small wheel diameter, poor trafficability, and small ground clearance. Summary of the invention

[0003] The object of the present invention is to provide a forklift that follows the rear of a transport vehicle, quickly completes cargo loading and unloading, and is suitable for outdoor environments, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: an outdoor trailing loading and unloading forklift, comprising a frame, a handle group, an inner door frame group, a cylinder group, a lifting frame group and a fork,

[0005] The lifting frame is rotatably connected with two rollers on the left and right sides and the upper and lower sides, extending into the C-shaped steel door column of the inner door frame to achieve rolling connection;

[0006] The two sides of the bottom of the inner door frame are also rotated up and down to connect two rollers and extend into the C-shaped steel door column of the outer door frame to achieve rolling connection;

[0007] Guide wheel groups are installed on both sides of the top of the outer door frame, and inserts are installed to adjust the gaps on both sides of the inner and outer door columns to be uniform, so that the inner door frame can move up and down more stably.

[0008] The piston rod of the oil cylinder group extends into the top joint of the inner door frame and is fastened with screws.

[0009] Preferably, the bottom of the cylinder barrel of the cylinder group is connected to the cylinder support pin on the frame, and a sprocket shaft is fixedly installed on the top.

[0010] Preferably, the top joint of the inner mast is connected to the elastic pin of the sprocket shaft, and load-bearing sprockets are symmetrically installed at both ends of the sprocket shaft, and lifting sprockets are symmetrically installed on both sides of the bottom of the inner mast, and the lifting sprockets are meshed with load-bearing chains on the outside.

[0011] Preferably, the load-bearing chain cooperates with the load-bearing sprocket, one end of which is fastened to the lifting frame bolt, and the other end is fixedly connected to the load-bearing chain seat on the middle beam plate of the outer door frame.

[0012] Preferably, a lifting chain is fixed to the outside of the lifting chain seat, the lifting chain cooperates with the lifting sprocket, one end of the lifting chain is fastened to the lifting frame bolt, and the other end is fixedly connected to the lifting chain seat on the middle beam plate of the outer door frame.

[0013] Preferably, the lower side of the frame is rotatably connected to an electric drive wheel, and the upper side of the frame is rotatably connected to a handle group, a controller and a drive motor are arranged inside the frame at positions corresponding to the handle group and the electric drive wheel, and an output shaft of the drive motor is connected to the handle group through a steering gear.

[0014] Preferably, batteries connected to the controller and the drive motor are placed on both sides of the interior of the frame, and a cover plate is screwed to a position on the frame corresponding to the battery storage cavity.

[0015] Preferably, the frame is designed as a U-shaped structure, and the front lower end of the frame is rotatably connected to a front load-bearing wheel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The vehicle body of the present application adopts a three-point force-bearing structure. The electric drive wheel and the two front load-bearing wheels have large wheel diameters, solid rubber material, and anti-skid tread patterns, which can be well adapted to outdoor use. The door seat has a ground clearance of 120mm, which greatly improves the vehicle's passing performance.

[0018] The two batteries of the present application are arranged on the left and right sides of the power box respectively. When installing and maintaining, the cover above the battery can be directly opened, which is convenient and quick.

[0019] The fork of this application is solid one-piece forging, with high strength and large bearing capacity, better applicability, and easier to pick up goods than the covering fork. The two forks are installed on the cross rail of the lifting frame, and can be moved left and right to adjust the spacing to adapt to pallets of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is the overall structural view of the present invention;

[0022] Figure 2It is a rear view of the overall structure of the present invention;

[0023] Figure 3 The combination of the forklift of the present invention and the rear of the truck Figure 1 ;

[0024] Figure 4 The combination of the forklift of the present invention and the rear of the truck Figure 2 ;

[0025] Figure 5 The combination of the forklift of the present invention and the rear of the truck Figure 3 ;

[0026] Figure 6 The combination of the forklift of the present invention and the rear of the truck Figure 4 .

[0027] Description of reference numerals:

[0028] 1. Frame; 2. Handle group; 3. Inner mast group; 4. Cylinder group; 5. Lifting frame group; 6. Fork; 7. Electric drive wheel; 8. Front load-bearing wheel; 9. Roller; 10. Outer mast; 11. Guide wheel group; 12. Cylinder support; 13. Sprocket shaft; 14. Battery; 15. Load-bearing sprocket; 16. Lifting sprocket; 17. Load-bearing chain; 18. Load-bearing chain seat; 19. Lifting chain; 20. Lifting chain seat; 21. Cover plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 6 , the present invention provides a technical solution:

[0031] An outdoor trailing loading and unloading forklift, comprising a frame 1, a handle group 2, an inner door frame group 3, a cylinder group 4, a lifting frame group 5 and a cargo fork 6.

[0032] The lifting frame is rotatably connected with two rollers 9 on both sides, extending into the C-shaped steel door column of the inner door frame to achieve rolling connection;

[0033] The two sides of the bottom of the inner door frame are also rotated up and down to connect two rollers 9 to extend into the 10C steel door column of the outer door frame to achieve rolling connection;

[0034] Guide wheel groups 11 are installed on both sides of the top of the outer door frame 10, and inserts are installed to adjust the gaps on both sides of the inner and outer door columns to be uniform, so that the inner door frame can move up and down more stably.

[0035] The piston rod of the oil cylinder group 4 extends into the top joint of the inner mast and is fastened with screws.

[0036] The bottom of the cylinder of the cylinder group 4 is pin-connected to the cylinder support 12 on the frame 1, and a sprocket shaft 13 is fixedly installed on the top.

[0037] The top joint of the inner mast is connected with the sprocket shaft 13 by elastic pins, and load-bearing sprockets 15 are symmetrically installed at both ends of the sprocket shaft 13, and lifting sprockets 16 are symmetrically installed at both sides of the bottom of the inner mast, and the lifting sprockets 16 are meshed with load-bearing chains 17 on the outside.

[0038] The load-bearing chain 17 cooperates with the load-bearing sprocket 15, one end of which is fastened to the lifting frame bolt, and the other end is fixedly connected to the load-bearing chain 17 seat on the middle beam plate of the outer door frame 10.

[0039] A lifting chain 19 is fixed to the outside of the lifting chain 19 seat, and the lifting chain 19 cooperates with the lifting sprocket 16. One end of the lifting chain 19 is fastened to the lifting frame bolt, and the other end is fixedly connected to the lifting chain 19 seat on the middle beam plate of the outer door frame 10.

[0040] The lower side of the frame 1 is rotatably connected to an electric drive wheel 7, and the upper side of the frame 1 is rotatably connected to a handle group 2. A controller and a drive motor are provided at positions corresponding to the handle group 2 and the electric drive wheel 7 inside the frame 1, and an output shaft of the drive motor is connected to the handle group 2 through a steering gear.

[0041] The battery 14 connected to the controller and the driving motor is placed on both sides of the frame 1, and a cover plate 21 is screwed to the position of the frame 1 corresponding to the storage cavity of the battery 14.

[0042] The frame 1 is designed in a U-shaped structure, and a front load-bearing wheel 8 is rotatably connected to the lower front end of the frame 1 .

[0043] Working principle:

[0044] When working, a controller connected to the drive motor is provided in the handle group 2, and a knob is installed on the handle group 2. The user controls the operation of the drive motor by using the controller through the knob, and controls the rotation of the electric drive wheel 7 under the action of the steering gear, and then cooperates with the front load-bearing wheel 8 to drive the device forward and backward;

[0045] When working, the fork 6 is located at the bottom of the cargo, and then the user controls the cylinder group 4 to rise, and through the cooperation of a series of structural components such as the lifting chain 19 and the lifting sprocket 16, the fork 6 is lifted to lift the cargo for transportation.

[0046] The specific operating steps for forklift following truck operation are as follows:

[0047] Lift the fork 6 to the same height as the socket at the rear of the truck, and move the forklift until the arm of the fork 6 touches the rear of the truck.

[0048] The lowering button on the operating handle is pressed to lift the frame 1 as a whole until the front load-bearing wheel 8 hits the limit rod on the truck.

[0049] Pull out the mobile support tube on the truck, and insert the safety pin to secure the support tube once it is in place.

[0050] The rising button on the operating handle is operated to lower the frame 1 as a whole until the bottom of the frame 1 touches the supporting pipe on the truck.

[0051] There are vertical stops on the support tubes to prevent the forklift from moving backwards.

[0052] In addition to the lifting and lowering buttons on the operating handle, the operator can also move to the side of the forklift and maintain a certain distance to complete the raising and lowering of the forklift 6 through a wireless remote controller, which greatly improves the safety of the operation.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An outdoor trailing loading and unloading forklift, comprising a frame (1), a handle assembly (2), an inner door frame assembly (3), a cylinder assembly (4), a lifting frame assembly (5) and a fork (6), characterized in that: The lifting frame (5) is rotatably connected to two rollers (9) on both sides, extending into the C-shaped steel door column of the inner door frame (3) to achieve rolling connection; The bottom sides of the inner door frame (3) are also rotatably connected with two rollers extending into the C-shaped steel door column of the outer door frame (10) to achieve rolling connection; Guide wheel groups (11) are installed on both sides of the top of the outer door frame (10), and inserts are installed to adjust the gaps on both sides of the inner and outer door columns to be uniform, so that the inner door frame can move up and down more stably. The piston rod of the oil cylinder group (4) extends into the top joint of the inner door frame (3) and is fastened with screws.

2. The outdoor trailing loading and unloading forklift according to claim 1, characterized in that: The bottom of the cylinder barrel of the oil cylinder group (4) is pin-connected to the oil cylinder support (12) on the vehicle frame (1), and a sprocket shaft (13) is fixedly installed on the top.

3. The outdoor trailing loading and unloading forklift according to claim 1, characterized in that: The top joint of the inner door frame (3) is connected to the sprocket shaft (13) with an elastic pin, and load-bearing sprockets (15) are symmetrically installed at both ends of the sprocket shaft (13), and lifting sprockets (16) are symmetrically installed on both sides of the bottom of the inner door frame (3), and the lifting sprocket (16) is meshed with a load-bearing chain (17) on the outside.

4. The outdoor trailing loading and unloading forklift according to claim 3, characterized in that: The load-bearing chain (17) cooperates with the load-bearing sprocket (15), one end of which is bolted and connected to the lifting frame (5), and the other end of which is fixedly connected to the load-bearing chain seat (18) on the middle beam plate of the outer door frame (10).

5. The outdoor trailing loading and unloading forklift according to claim 4, characterized in that: A lifting chain (19) is fixed to the outside of the lifting chain seat (20). The lifting chain (19) cooperates with the lifting sprocket (16), one end of which is bolted to the lifting frame (5) and the other end of which is fixedly connected to the lifting chain seat (20) on the middle beam plate of the outer door frame (10).

6. The outdoor trailing loading and unloading forklift according to claim 5, characterized in that: The lower side of the frame (1) is rotatably connected to an electric drive wheel (7), and the upper side of the frame (1) is rotatably connected to a handle group (2). A controller and a drive motor are arranged at positions inside the frame (1) corresponding to the handle group (2) and the electric drive wheel (7), and an output shaft of the drive motor is connected to the handle group (2) via a steering gear.

7. The outdoor trailing loading and unloading forklift according to claim 6, characterized in that: Storage batteries (14) connected to the controller and the drive motor are placed on both sides of the vehicle frame (1), and a cover plate (21) is screwedly connected to a position on the vehicle frame (1) corresponding to the storage cavity of the storage battery (14).

8. The outdoor trailing loading and unloading forklift according to claim 7, characterized in that: The vehicle frame (1) is designed as a U-shaped structure, and the front lower end of the vehicle frame (1) is rotatably connected to a front load-bearing wheel (8).

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