A forklift gantry hydraulic pipeline system and a reach-forklift thereof

Abstract

The present invention discloses a forklift gantry hydraulic pipeline system and a forward-moving forklift thereof, comprising a hydraulic steel pipe that is bent and fitted to the gantry and arranged in an orderly avoidance manner, the hydraulic steel pipe is connected to one end of a hydraulic hose that is bypassed on a pulley assembly, the pulley assembly is arranged on a corresponding gantry, and the other end of the hydraulic hose is connected to a hydraulic actuator. The present invention bends the hydraulic steel pipe and fits the corresponding gantry arrangement, and at the same time surrounds the hydraulic hose on the corresponding pulley assembly, so that on the one hand, the entire hydraulic pipeline system does not affect the line of sight and is neat and beautiful, and more importantly, the hydraulic hose can move synchronously with the corresponding gantry and does not interfere with the movement of the corresponding gantry, which greatly improves the service life of the hydraulic hose and ensures the safety and effectiveness of the operation of the gantry system.

Description

Technical Field

[0001] The invention relates to the technical field of forklift mast hydraulic pipelines, in particular to a forklift mast hydraulic pipeline system and a reach-type forklift thereof. Background Art

[0002] Wide-body multi-directional forklifts are widely used in the handling and stacking of long and large-tonnage materials in narrow passages due to their high chassis stability and multi-directional travel. Wide-body multi-directional forklifts can travel in five directions: front, back, left, right, and diagonal, and can rotate on the spot. This type of vehicle is suitable for carrying long materials such as wood, fiberboard, pipes, profiles, etc. on relatively flat ground; the cab of the wide-body full-forward forklift is arranged on the side, so the narrower the mast, the better its visibility. The narrower the mast, the smaller its internal space, and the more difficult it is to arrange the hydraulic pipeline. The existing forklift hydraulic pipeline arrangement seriously affects the driver's operating field of view; at the same time, the hydraulic hose is easy to interfere with the moving parts of the forklift, seriously affecting its service life and posing serious safety hazards. Summary of the invention

[0003] The object of the present invention is to provide a forklift mast hydraulic pipeline system and a reach forklift thereof, 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:

[0005] A forklift gantry hydraulic pipeline system includes a hydraulic steel pipe that is bent and fitted to the gantry and arranged in an orderly avoidance manner. The hydraulic steel pipe is connected to one end of a hydraulic hose that bypasses a pulley assembly. The pulley assembly is arranged on the corresponding gantry. The other end of the hydraulic hose is connected to a hydraulic actuator.

[0006] Preferably, the hydraulic steel pipe includes an outer mast hydraulic steel pipe bent and attached to the outer mast, one end of the outer mast hydraulic steel pipe is connected to the first hydraulic hose and the rear lifting cylinder, and the other end is connected to the vehicle body valve assembly, the first hydraulic hose is connected to the inner mast joint assembly and the free cylinder after bypassing the middle mast pulley group, the inner mast joint assembly is connected to the second hydraulic hose, the second hydraulic hose is connected to the inner slide joint assembly after bypassing the inner mast pulley group, the inner slide joint assembly is connected to the third hydraulic hose, the third hydraulic hose is respectively connected to the tilt cylinder and the fork frame steel pipe arranged on the inner slide side plate upward, and the other end of the fork frame steel pipe is connected to the distance adjustment motor or cylinder.

[0007] Preferably, the middle mast pulley block is arranged on both sides below the second upper crossbeam of the middle mast, the inner mast joint assembly is arranged in the middle of the fourth middle crossbeam of the inner mast, the inner mast pulley block is arranged at the upper end of the free cylinder, the inner slide joint assembly is located at the lower end of the middle part of the lower crossbeam of the inner slide, the fork frame steel pipe is located on one side of the fork frame, and is arranged in order along the upper crossbeam of the fork frame.

[0008] The present application also provides a reach forklift, comprising the forklift mast hydraulic pipeline system described above.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The present invention bends the hydraulic steel pipe and fits it to the corresponding gantry layout, and at the same time wraps the hydraulic hose around the corresponding pulley assembly. On the one hand, the entire hydraulic pipeline system does not affect the line of sight and is neat and beautiful; more importantly, the hydraulic hose can move synchronously with the corresponding gantry without interfering with the movement of the corresponding gantry, which greatly improves the service life of the hydraulic hose and ensures the safety and effectiveness of the operation of the gantry system. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 It is a front view of the present invention;

[0013] Figure 3 It is a schematic diagram of the outer door frame structure of the present invention;

[0014] Figure 4 It is a schematic diagram of the structure of the middle door frame of the present invention;

[0015] Figure 5 It is a schematic diagram of the inner door structure of the present invention;

[0016] Figure 6 It is a schematic diagram of the inner sliding frame structure of the present invention.

[0017] In the figure: 1 outer mast hydraulic steel pipe, 2 first hydraulic hose, 3 middle mast pulley block, 4 rear lifting cylinder, 5 inner mast joint assembly, 6 second hydraulic hose, 7 inner mast pulley block, 8 inner slide joint assembly, 9 third hydraulic hose, 10 tilt cylinder, 11 fork frame steel pipe, 12 outer mast, 13 middle mast, 14 inner mast, 15 inner slide, 16 free cylinder, 17 fork frame. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-6 , the present invention provides a technical solution:

[0020] A forklift gantry hydraulic pipeline system, comprising a hydraulic steel pipe that is bent and fitted to the gantry and arranged in an orderly avoidance manner. The hydraulic steel pipe is arranged to fit the gantry so that the entire hydraulic pipeline system does not affect the line of sight and is neat and beautiful; the hydraulic steel pipe is connected to one end of a hydraulic hose that is bypassed on a pulley assembly, the pulley assembly is arranged on the corresponding gantry, and the other end of the hydraulic hose is connected to a hydraulic actuator. The hydraulic hose is bypassed on the corresponding pulley assembly, so that the hydraulic hose can maintain synchronous lifting and lowering movement with the gantry, so that the hydraulic hose does not interfere with the corresponding gantry movement, greatly improving the service life of the hydraulic hose, and ensuring the safety and effectiveness of the gantry system operation;

[0021] The hydraulic steel pipe includes an outer mast hydraulic steel pipe 1 which is bent and attached to the outer mast 12. One end of the outer mast hydraulic steel pipe 1 is connected to the first hydraulic hose 2 through a joint assembly, and is connected to the oil port of the rear lifting cylinder 4 through a vertical steel pipe. The other end is connected to the vehicle body valve assembly through a joint assembly. The vehicle body valve assembly supplies oil to the entire mast system through the outer mast hydraulic steel pipe 1; the other end of the first hydraulic hose 2 is connected to the inner mast joint assembly 5 and the oil port of the free cylinder 16 after bypassing the middle mast pulley block 3. The inner mast joint assembly 5 is arranged in the middle of the fourth middle crossbeam of the inner mast 14, and the middle mast pulley block 3 is arranged on both sides below the second upper crossbeam of the middle mast 13 The inner mast joint assembly 5 is connected to the second hydraulic hose 6, and the other end of the second hydraulic hose 6 is connected to the inner slide joint assembly 8 after bypassing the inner mast pulley block 7. The inner mast pulley block 7 is arranged at the upper end of the free cylinder 16. The inner slide joint assembly 8 is connected to the third hydraulic hose 9. The inner slide joint assembly 8 is located at the lower end of the middle part of the lower crossbeam of the inner slide 15. The third hydraulic hose 9 is respectively connected to the tilt cylinder 10 and the fork frame steel pipe 11 arranged on the side plate of the inner slide 15 facing upward. The other end of the fork frame steel pipe 11 is connected to the distance adjustment motor or cylinder. The fork frame steel pipe 11 is located on one side of the fork frame 17 and is arranged in order along the upper crossbeam of the fork frame 17.

[0022] The present application also provides a reach forklift, comprising the forklift mast hydraulic pipeline system described above.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forklift mast hydraulic piping system, characterized in that: It includes a hydraulic steel pipe that is bent and attached to the gantry and arranged in an orderly avoidance manner, the hydraulic steel pipe is connected to one end of a hydraulic hose that is bypassed on a pulley assembly, the pulley assembly is arranged on the corresponding gantry, and the other end of the hydraulic hose is connected to a hydraulic actuator; The hydraulic steel pipe comprises an outer mast hydraulic steel pipe (1) bent and attached to the outer mast (12), one end of the outer mast hydraulic steel pipe (1) is connected to a first hydraulic hose (2) and a rear lifting cylinder (4), and the other end is connected to a vehicle body valve assembly, the first hydraulic hose (2) is connected to an inner mast joint assembly (5) and a free cylinder (16) after passing through a middle mast pulley assembly (3), the inner mast joint assembly (5) is connected to a second hydraulic hose (6), the second hydraulic hose (6) is connected to an inner slide joint assembly (8) after passing through an inner mast pulley assembly (7), the inner slide joint assembly (8) is connected to a third hydraulic hose (9), the third hydraulic hose (9) is respectively connected to a tilt cylinder (10) and a fork frame steel pipe (11) arranged on an upward side plate of an inner slide (15), and the other end of the fork frame steel pipe (11) is connected to a distance adjustment motor or a cylinder; One end of the outer mast hydraulic steel pipe (1) is connected to the first hydraulic hose (2) through a joint assembly and is connected to the oil port of the rear lifting cylinder (4) through a vertical steel pipe, and the other end is connected to the vehicle body valve assembly through the joint assembly.

2. A forklift mast hydraulic pipeline system according to claim 1, characterized in that: The middle mast pulley block (3) is arranged on both sides below the second upper crossbeam of the middle mast (13), the inner mast joint assembly (5) is arranged in the middle of the fourth middle crossbeam of the inner mast (14), the inner mast pulley block (7) is arranged at the upper end of the free cylinder (16), the inner slide joint assembly (8) is located at the lower end of the middle part of the lower crossbeam of the inner slide (15), and the fork frame steel pipe (11) is located on one side of the fork frame (17) and is arranged in an orderly manner along the upper crossbeam of the fork frame (17).

3. A reach forklift, characterized in that: A forklift gantry hydraulic pipeline system comprising the forklift gantry hydraulic pipeline system according to any one of claims 1-2.

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