A truck-mounted forklift

Abstract

The invention discloses a truck-mounted forklift, comprising a frame, a vehicle body, a forward sliding frame, a forward oil cylinder, a door frame assembly, a cargo fork, a tilting oil cylinder, a front wheel, a hydraulic system and a chain. The vehicle body is tightly connected to the rear of the frame, and both sides of the forward sliding frame are rollingly connected to wheel rails through rollers. The cylinder barrel end of the forward oil cylinder is connected to the rear end of the frame, the piston rod end of the forward oil cylinder is hinged to the front end of the forward sliding frame, the lower end of the door frame assembly is hinged to the front side of the forward sliding frame, the cargo fork is connected to the door frame assembly through the cargo fork frame, the cargo fork frame is connected to the door frame assembly, the cylinder barrel end of the tilting oil cylinder is hinged to the upper end of the forward sliding frame, the piston rod end of the tilting oil cylinder is hinged to the rear end of the door frame assembly, the front wheel is connected to the outer side of the front end of the frame, the hydraulic system is installed in the vehicle body, and the chain is connected to both sides of the vehicle body, so as not to affect the loading amount of the cargo; the stability of transportation with the truck is ensured, and the truck will not sway or even slide to cause a safety accident; the operation is simple and easy, and the efficiency of getting on and off the truck is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of forklifts, and in particular, relates to a truck-mounted forklift. Background Art

[0002] With the vigorous development of modern logistics industry, loading and unloading of goods with transport vehicles has become an inevitable trend. For example: loading and unloading of goods without special loading and unloading equipment; loading and unloading of goods that require special forklift forks; loading and unloading of goods in applications where there is only one forklift available for multiple factories or multiple workshops. In order to realize cargo loading and unloading, it is necessary to design a truck-mounted forklift.

[0003] Truck-mounted forklifts are a type of mechanical equipment that is loaded on a transport vehicle, moves with the vehicle, and completes cargo loading and unloading. They are material handling machinery. Compared with ordinary cargo handling machinery, such as ordinary forklifts, their biggest feature is that they can be placed on transport vehicles and can complete cargo loading and unloading operations at any time during the entire transportation process. They are particularly suitable for cargo loading and unloading operations in places where there are no special loading and unloading equipment.

[0004] The existing truck-mounted forklift technologies are not mature and have the following main disadvantages:

[0005] First: It occupies the loading space of the transport vehicle and affects the loading capacity of the goods.

[0006] Second: The transportation by transport vehicle is unstable. When encountering bumpy roads or up and down broken roads, it is easy to cause the forklift to sway or even slide, causing safety accidents.

[0007] Third: The operation of loading and unloading the transport vehicle by the truck-mounted forklift is complicated, the efficiency of loading and unloading the transport vehicle is low, and the operation is difficult. Summary of the invention

[0008] The present invention provides a vehicle-mounted forklift to solve the problems existing in the background technology.

[0009] The camshaft is actuated by a hydraulic cylinder to move the forklift truck to a vertical position, and the hydraulic cylinder is connected to the hydraulic cylinder to move the forklift truck to a vertical position, and the hydraulic cylinder is connected to the hydraulic cylinder of the camshaft and the hydraulic cylinder to move the forklift truck to a vertical position.

[0010] Preferably, a front cylinder seat is provided at the front end of the frame, a leg oil cylinder is provided inside the front cylinder seat, and a supporting foot driven by the leg oil cylinder is provided at the front end guide of the front cylinder seat.

[0011] Preferably, a steering system, a drive system, a control system, a charger and a battery pack are provided in the vehicle body, a signal light control cable socket and a headlight are provided on the front side of the vehicle body, a three-color signal light is provided on the rear side of the vehicle body, and a control console is provided in the cockpit at the upper end of the vehicle body.

[0012] Preferably, the control console includes instruments, turn signal switches, lighting switch, parking brake switch, function switching switch, horn button, direction control handle, key switch, emergency power off switch, lifting and lowering control handle, forward and backward control handle, tilt control handle and support foot control handle.

[0013] Preferably, a chain switch key, a chain loosening switch and a chain tightening switch are provided on the side of the vehicle body.

[0014] Preferably, the mast assembly includes an outer mast, an inner mast, an outer chain and an inner chain, the lower end of the cylinder barrel of the lifting cylinder is connected to the lower end of the outer mast, the piston rod end of the lifting cylinder is connected to the upper end of the inner mast, the upper end of the inner mast is symmetrically provided with an upper sprocket, and the lower end is symmetrically provided with a lower sprocket, the outer chain crosses the upper sprocket, the lower end is tightly connected to the fork frame, and the upper end is tightly connected to the outer mast; the inner chain crosses the lower end of the lower sprocket and is tightly connected to the fork frame, and the upper end is tightly connected to the outer mast.

[0015] A truck-mounted forklift, the hydraulic system includes a truck loading operation system, specifically including the following steps:

[0016] Step S1: By pulling the lifting and lowering control handle backward, the lifting cylinder extends and the fork is raised to the same height as the fork hole at the rear of the truck;

[0017] Step S2: by pushing the forward and backward operating handle forward, the forward cylinder extends, and the mast assembly, fork frame, lifting cylinder, fork and tilt cylinder are moved to the front end together, and then the direction control handle is pushed forward to drive the forklift forward, so that the fork is inserted into the fork hole at the rear of the truck;

[0018] Step S3: Press the function switch, and the light of the function switch lights up;

[0019] Step S4: By pushing the lifting and lowering control handle forward, the lifting cylinder contracts and the forklift is slowly lifted until the frame is aligned with the lower end of the fork hole component;

[0020] Step S5: By pulling back the forward and backward movement operating handle, the forward movement cylinder contracts, and because the forklift is fixed, the forklift body is as close to the rear of the truck as possible;

[0021] Step S6: By pulling back the tilt control handle, the tilt cylinder contracts, and the entire forklift rotates counterclockwise around the hinge between the forward slide and the mast assembly, so that the rear end of the forklift tilts up;

[0022] Step S7: Press the function switch again, and the light of the function switch turns off;

[0023] Step S8: The forklift driver gets off the vehicle and hangs one end of the chain on both sides of the vehicle body on the truck;

[0024] Step S9: Turn on the chain switch key, press the chain tightening switch, extend the tilt cylinder, and lower the rear end of the forklift until the chain is fully tightened;

[0025] Step S10: Connecting the signal light control cable at the rear end of the truck to the signal light control cable socket;

[0026] Step S11: Turn off the chain switch key and remove the chain switch key.

[0027] A truck-mounted forklift, the hydraulic system also includes a truck unloading operation system, specifically including the following steps:

[0028] Step SS1: Disconnect the signal light control cable from the signal light control cable socket at the rear end of the truck;

[0029] Step SS2: Turn on the chain switch key, press the chain release switch, the tilt cylinder contracts, and the entire forklift rotates counterclockwise around the hinge between the forward slide and the mast assembly, so that the rear end of the forklift tilts up until the chain is completely relaxed;

[0030] Step SS3: The driver releases the chains on both sides of the vehicle body from the truck;

[0031] Step SS4: The driver gets on the forklift, sits on the forklift seat in the correct posture, fastens the seat belt, and lowers the guardrail; presses the function switch, and the light of the function switch is on;

[0032] Step SS5: By pushing the tilt control handle forward, the tilt cylinder extends, and the entire forklift rotates clockwise around the hinge between the forward slide and the mast assembly, causing the rear end of the forklift to descend;

[0033] Step SS6: By pushing the forward and backward movement control handle forward, the forward movement cylinder extends, and because the forks are fixed, the forklift body is as far away from the rear of the truck as possible;

[0034] Step SS7: By pulling back the lifting and lowering control handle, the lifting cylinder extends and the forklift is slowly lowered until the front wheels and the rear wheels of the drive system touch the ground;

[0035] Step SS8: driving the forklift to move backward by pulling the direction control handle backward, so that the forks are completely disengaged from the fork holes at the rear of the truck;

[0036] Step SS9: Press the function switch again, and the light of the function switch turns off.

[0037] The beneficial effects of adopting the above technical solution are:

[0038] 1. The truck-mounted forklift of the present invention is loaded at the rear end of a truck, does not occupy the loading space of the truck, and does not affect the loading capacity of the goods.

[0039] 2. The truck forklift of the present invention inserts the cargo fork into the cargo fork hole at the rear of the truck through the hydraulic system, and then hangs one end of the chain on both sides of the truck body on the truck until the chain is fully tightened, thereby ensuring the stability of the truck forklift when transported with the truck. When encountering bumpy sections or up and down broken sections, the truck forklift will not sway or even slide to cause a safety accident.

[0040] 3. The hydraulic system of the truck-mounted forklift of the present invention enables the truck-mounted forklift to get on and off a truck with simple operation, high efficiency and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The vehicle-mounted forklift assembly of the present invention Figure 1 ;

[0042] Figure 2 The vehicle-mounted forklift assembly of the present invention Figure 2 ;

[0043] Figure 3 This is an enlarged view of the control console;

[0044] Figure 4 The vehicle-mounted forklift assembly of the present invention Figure 3 ;

[0045] Figure 5 yes Figure 4 A partial enlarged view of position A in the middle;

[0046] Figure 6 is a schematic diagram of the forward slide structure;

[0047] Figure 7 This is the assembly drawing of the front cylinder seat, outrigger cylinder and support foot;

[0048] Figure 8 It is the mast assembly and fork assembly drawing;

[0049] Fig. 9 is a schematic diagram of step S1-step S3;

[0050] Fig.10 is a schematic diagram of step S4;

[0051] Fig.11 is a schematic diagram of step S5;

[0052] Fig.12 is a schematic diagram of step S6-step S7;

[0053] Fig.13 is a schematic diagram of step S8;

[0054] Fig.14 is a schematic diagram of step S9-step S11;

[0055] Fig.15 is a schematic diagram of step SS1-step SS2;

[0056] Fig.16 is a schematic diagram of step SS3-step SS4;

[0057] Fig.17 is a schematic diagram of step SS5;

[0058] Fig.18 is a schematic diagram of step SS6;

[0059] Fig.19 is a schematic diagram of step SS7;

[0060] Fig. 20 is a schematic diagram of step SS8-step SS9;

[0061] in:

[0062] 1. Frame; 2. Car body; 3. Forward slide; 4. Forward cylinder; 5. Mast assembly; 6. Fork; 7. Tilt cylinder; 8. Front wheel; 9. Hydraulic system; 9-1. Chain;

[0063] 10. Wheel rail 11. Front cylinder seat; 12. Outrigger cylinder; 13. Support foot;

[0064] 20. Steering system; 21. Drive system; 22. Control system; 23. Charger; 24. Battery pack; 25. Signal light control cable socket; 26. Front lighting; 27. Three-color signal light; 28. Control console; 28-1. Instrument; 28-2. Turn signal switch; 28-3. Light switch; 28-4. Parking brake switch; 28-5. Function switch; 28-6. Horn button; 28-7. Direction control handle; 28-8. Key switch; 28-9. Emergency power off switch; 28-10. Lifting and lowering control handle; 28-11. Forward and backward movement control handle; 28-12. Tilt control handle; 28-13. Support foot control handle;

[0065] 280, chain switch key; 281, chain release switch; 282, chain tightening switch;

[0066] 50. Fork frame; 51. Lifting cylinder; 52. Outer mast; 53. Inner mast; 53-1. Upper sprocket; 53-2. Lower sprocket; 54. Outer chain; 55. Inner chain. DETAILED DESCRIPTION

[0067] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention and facilitating its implementation.

[0068] like Figures 1 to 20 As shown, the present invention is a truck forklift, which does not occupy the loading space of the truck and does not affect the loading capacity of the goods; it ensures the stability of the truck forklift when transporting with the truck, and when encountering bumpy sections or broken sections, the truck forklift will not sway or even slide to cause safety accidents; it is simple to operate, has high efficiency in getting on and off the truck, and is easy to operate.

[0069] Specifically, Figures 1 to 20As shown, a truck-mounted forklift includes a frame 1, a vehicle body 2, a forward slide 3, a forward cylinder 4, a gantry assembly 5, a fork 6, a tilt cylinder 7, a front wheel 8, a hydraulic system 9 and a chain 9-1, wherein the vehicle body 2 is fastened to the rear of the frame 1, a wheel track 10 is provided on the inner wall of the frame 1, both sides of the forward slide 3 are rollingly connected to the wheel track 10 through rollers, the cylinder end of the forward cylinder 4 is connected to the rear end of the frame 1, and the piston rod end of the forward cylinder 4 is hinged to the front end of the forward slide 3 The lower end of the gantry assembly 5 is hinged to the front side of the forward slide 3, the fork 6 is connected to the gantry assembly 5 through the fork frame 50, the fork frame 50 is connected to the gantry assembly 5 through the lifting cylinder 51, the cylinder end of the tilt cylinder 7 is hinged to the upper end of the forward slide 3, the piston rod end of the tilt cylinder 7 is hinged to the rear end of the gantry assembly 5, the front wheel 8 is connected to the outer side of the front end of the frame 1, the hydraulic system 9 is installed in the vehicle body 2, and the chain 9-1 is connected to both sides of the vehicle body 2.

[0070] A front cylinder seat 11 is provided at the front end of the frame 1, and a leg cylinder 12 is provided inside the front cylinder seat 11. A support foot 13 driven by the leg cylinder 12 is provided at the front end guide of the front cylinder seat 11; when the vehicle-mounted forklift is used to transport heavy objects, the support foot 13 driven by the leg cylinder 12 is in contact with the ground, and the front wheel 8 is lifted off the ground, thereby ensuring the stability of the heavy objects and preventing the vehicle-mounted forklift from tipping forward or sideways.

[0071] The vehicle body 2 is provided with a steering system 20, a drive system 21, a control system 22, a charger 23 and a battery pack 24. The front side of the vehicle body 2 is provided with a signal light control cable socket 25 and a front lighting lamp 26. The rear side of the vehicle body 2 is provided with a three-color signal light 27. A control console 28 is provided in the upper cockpit of the vehicle body 2. The charger 23 and the battery pack 24 are energy-saving and environmentally friendly. The signal light control cable socket 25 ensures that the rear three-color signal light 27 of the vehicle forklift can be used as a signal light for a truck, ensuring driving safety.

[0072] The control console 28 includes an instrument 28-1, a turn signal switch 28-2, a lighting switch 28-3, a parking brake switch 28-4, a function switching switch 28-5, a horn button 28-6, a direction control handle 28-7, a key switch 28-8, an emergency power-off switch 28-9, a lifting and lowering operating handle 28-10, a forward and backward moving operating handle 28-11, a tilting operating handle 28-12 and a support foot operating handle 28-13.

[0073] A chain switch key 280 , a chain loosening switch 281 and a chain tightening switch 282 are provided on the side of the vehicle body 2 .

[0074] The mast assembly 5 includes an outer mast 52, an inner mast 53, an outer chain 54 and an inner chain 55. The lower end of the cylinder barrel of the lifting cylinder 51 is connected to the lower end of the outer mast 52, and the piston rod end of the lifting cylinder 51 is connected to the upper end of the inner mast 52. The upper end of the inner mast 53 is symmetrically provided with an upper sprocket 53-1, and the lower end is symmetrically provided with a lower sprocket 53-2. The outer chain 54 crosses the upper sprocket 53-1, and the lower end is tightly connected to the fork frame 50, and the upper end is tightly connected to the outer mast 52; the inner chain 55 crosses the lower sprocket 53-2, and the lower end is tightly connected to the fork frame 50, and the upper end is tightly connected to the outer mast 52. The fork frame 50 is connected to the upper end of the outer frame 52 by bypassing the upper sprocket 53-1 through the outer chain 54, and the fork frame 50 is connected to the upper end of the outer frame 52 by bypassing the lower sprocket 53-2 through the inner chain 55. Compared with the traditional forklift whose forks descend by their own weight, the present application realizes that the rising and falling of the fork frame 50 are both under pressure and the pressure can be maintained, ensuring that the fork 6 is locked at any position and ensuring the stability of the fork 6 inserted into the fork hole at the rear of the truck.

[0075] The specific working method is described below with specific embodiments:

[0076] Embodiment 1:

[0077] A truck-mounted forklift, the hydraulic system 9 includes a truck loading operation system, specifically including the following steps:

[0078] Step S1: By pulling the lifting and lowering operating handle 28-10 backward, the lifting cylinder 51 extends and the fork 6 is raised to the same height as the fork hole at the rear of the truck;

[0079] Step S2: by pushing the forward and backward moving operating handle 28-11 forward, the forward moving cylinder 4 extends, and the mast assembly 5, the fork frame 50, the lifting cylinder 51, the fork 6 and the tilting cylinder 7 are moved to the front end together, and then the direction control handle 28-7 is pushed forward to drive the forklift forward, so that the fork 6 is inserted into the fork hole at the rear of the truck;

[0080] Step S3: Press the function switch 28-5, and the light of the function switch 28-5 will light up;

[0081] Step S4: By pushing the lifting and lowering operating handle 28-10 forward, the lifting cylinder 51 contracts and the forklift is slowly lifted until the frame 1 is aligned with the lower end of the fork hole component;

[0082] Step S5: by pulling back the forward and backward moving operating handle 28-11, the forward moving cylinder 4 contracts, and since the forklift 6 is fixed, the forklift body 2 is as close to the rear of the truck as possible;

[0083] Step S6: By pulling back the tilting control handle 28-12, the tilting cylinder 7 contracts, and the entire forklift rotates counterclockwise around the hinge between the forward slide 3 and the mast assembly 5, so that the rear end of the forklift tilts up;

[0084] Step S7: Press the function switch 28-5 again, and the light of the function switch 28-5 turns off;

[0085] Step S8: The forklift driver gets off the vehicle and hangs one end of the chain 9-1 on both sides of the vehicle body 2 on the truck;

[0086] Step S9: Turn on the chain switch key 280, press the chain tightening switch 282, extend the tilt cylinder 7, and lower the rear end of the forklift until the chain 9-1 is fully tightened;

[0087] Step S10: Connect the signal light control cable at the rear end of the truck to the signal light control cable socket 25;

[0088] Step S11 : Turn off the chain switch key 280 and remove the chain switch key 280 .

[0089] Embodiment 2:

[0090] A truck-mounted forklift, the hydraulic system 9 also includes a truck unloading operation system, which specifically includes the following steps:

[0091] Step SS1: Disconnect the signal light control cable at the rear end of the truck from the signal light control cable socket 25;

[0092] Step SS2: Turn on the chain switch key 280, press the chain release switch 281, the tilt cylinder 7 contracts, and the entire forklift rotates counterclockwise around the hinge between the forward slide 3 and the door frame assembly 5, so that the rear end of the forklift tilts up until the chain 9-1 is completely relaxed;

[0093] Step SS3: The driver releases the chains 9-1 on both sides of the vehicle body 2 from the truck;

[0094] Step SS4: The driver gets on the forklift, sits on the forklift seat in a correct posture, fastens the seat belt, and lowers the guardrail; presses the function switch 28-5, and the light of the function switch 28-5 is on;

[0095] Step SS5: By pushing the tilt control handle 28-12 forward, the tilt cylinder 7 extends, and the entire forklift rotates clockwise around the hinge between the forward slide 3 and the mast assembly 5, so that the rear end of the forklift descends;

[0096] Step SS6: By pushing the forward and backward moving operating handle 28-11 forward, the forward moving cylinder 4 is extended, and since the forklift 6 is fixed, the forklift body 2 is as far away from the rear of the truck as possible;

[0097] Step SS7: By pulling back the lifting and lowering control handle 28-10, the lifting cylinder 51 is extended, and the forklift is slowly lowered until the front wheels 8 and the rear wheels of the drive system 21 touch the ground;

[0098] Step SS8: driving the forklift to move backward by pulling the direction control handle 28-7 backward, so that the fork 6 is completely disengaged from the fork hole at the rear of the truck;

[0099] Step SS9: Press the function switch 28-5 again, and the light of the function switch 28-5 turns off.

[0100] 1. The truck-mounted forklift of the present invention is loaded at the rear end of a truck, does not occupy the loading space of the truck, and does not affect the loading capacity of the goods.

[0101] 2. The truck forklift of the present invention inserts the cargo fork into the cargo fork hole at the rear of the truck through the hydraulic system 9, and then hangs one end of the chain 9-1 on both sides of the vehicle body 2 on the truck until the chain 9-1 is fully tightened, thereby ensuring the stability of the truck forklift when transported with the truck. When encountering bumpy sections or up and down broken sections, the truck forklift will not sway or even slide to cause a safety accident.

[0102] 3. The hydraulic system of the truck-mounted forklift of the present invention enables the truck-mounted forklift to get on and off a truck with simple operation, high efficiency and easy operation.

[0103] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A vehicle-mounted forklift, characterized in that: The invention comprises a vehicle frame (1), a vehicle body (2), a forward slide (3), a forward oil cylinder (4), a gantry assembly (5), a fork (6), a tilt oil cylinder (7), a front wheel (8), a hydraulic system (9) and a chain (9-1), wherein the vehicle body (2) is fixedly connected to the rear of the vehicle frame (1), a wheel track (10) is provided on the inner wall of the vehicle frame (1), both sides of the forward slide (3) are rollingly connected to the wheel track (10) via rollers, the cylinder end of the forward oil cylinder (4) is connected to the rear end of the vehicle frame (1), the piston rod end of the forward oil cylinder (4) is hinged to the front end of the forward slide (3), and the vehicle frame (1) is provided with a wheel track (10) on the inner wall of the vehicle frame (1). The lower end of the mast assembly (5) is hinged to the front side of the forward sliding frame (3), the fork (6) is connected to the mast assembly (5) through the fork frame (50), the fork frame (50) is connected to the mast assembly (5) through the lifting cylinder (51), the cylinder end of the tilting cylinder (7) is hinged to the upper end of the forward sliding frame (3), the piston rod end of the tilting cylinder (7) is hinged to the rear end of the mast assembly (5), the front wheel (8) is connected to the outer side of the front end of the frame (1), the hydraulic system (9) is installed in the vehicle body (2), and the chain (9-1) is connected to both sides of the vehicle body (2); The front end of the vehicle frame (1) is provided with a front cylinder seat (11), a leg oil cylinder (12) is provided inside the front cylinder seat (11), and a support foot (13) driven by the leg oil cylinder (12) is provided at the front end guide of the front cylinder seat (11); The mast assembly (5) comprises an outer mast (52), an inner mast (53), an outer chain (54) and an inner chain (55); the lower end of the cylinder barrel of the lifting cylinder (51) is connected to the lower end of the outer mast (52); the piston rod end of the lifting cylinder (51) is connected to the upper end of the inner mast (52); the upper end of the inner mast (53) is symmetrically provided with an upper sprocket (53-1), and the lower end is symmetrically provided with a lower sprocket (53-2); the outer chain (54) crosses the upper sprocket (53-1), the lower end is tightly connected to the fork frame (50), and the upper end is tightly connected to the outer mast (52); the inner chain (55) crosses the lower sprocket (53-2), the lower end is tightly connected to the fork frame (50), and the upper end is tightly connected to the outer mast (52).

2. A truck-mounted forklift according to claim 1, characterized in that: The vehicle body (2) is provided with a steering system (20), a drive system (21), a control system (22), a charger (23) and a battery pack (24); the front side of the vehicle body (2) is provided with a signal light control cable socket (25) and a front lighting lamp (26); the rear side of the vehicle body (2) is provided with a three-color signal light (27); and a control console (28) is provided in a cockpit at the upper end of the vehicle body (2).

3. The vehicle-mounted forklift according to claim 2, characterized in that: The control console (28) includes an instrument (28-1), a turn signal switch (28-2), a lighting switch (28-3), a parking brake switch (28-4), a function switching switch (28-5), a horn button (28-6), a direction control handle (28-7), a key switch (28-8), an emergency power-off switch (28-9), a lifting and lowering control handle (28-10), a forward and backward movement control handle (28-11), a tilt control handle (28-12) and a support foot control handle (28-13).

4. The vehicle-mounted forklift according to claim 1, characterized in that: A chain switch key (280), a chain loosening switch (281) and a chain tightening switch (282) are provided on the side of the vehicle body (2).

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