Hidden accessory pipeline structure of forklift gantry

Abstract

The utility model discloses a hidden accessory pipeline structure of a forklift portal frame, which comprises a portal frame component, two lifting chains arranged on the inner side of the portal frame component in bilateral symmetry and two chain wheels matched with the lifting chains, and is characterized in that a pulley block is arranged under the chain wheels; the accessory pipeline structure comprises a left rubber pipe assembly and a right rubber pipe assembly which are in bilateral symmetry, the upper end of the left rubber pipe assembly and the upper end of the right rubber pipe assembly are wound around the corresponding pulley blocks respectively, the left rubber pipe assembly and the right rubber pipe assembly are hidden under the interior of the lifting chain, and a pulley block installation shaft is fixedly connected with the chain wheel shaft through a connecting plate. The connecting plate and the pulley block are arranged, the pulley block is arranged under the lifting chain wheel, and the pulley block mounting shaft is fixedly connected with the chain wheel shaft through the connecting plate, so that an accessory pipeline bypassing the pulley is hidden in the lifting chain, the middle space of the inner portal is expanded, and the view of a driver is expanded; therefore, the use safety performance of the forklift is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a forklift door frame hidden type accessory pipeline structure. Background Art

[0002] As users’ requirements for forklift performance become higher and higher, the layout of forklift masts becomes more and more compact, and the requirements for pipeline layout become higher and higher. Figure 5 As shown, in the existing basic mast, the accessory pipeline assembly is arranged on the roller group 4' inside the inner mast, and the roller group 4' is coaxial with the lifting sprocket 3 and is arranged on the inner side of the lifting sprocket 3, so that the left hose component 5' and the right hose component 6' of the existing accessory pipeline assembly are arranged in the middle of the inner mast, resulting in poor vision for the driver when using the forklift. Utility Model Content

[0003] In order to solve the problem that the above-mentioned existing accessory pipeline assembly is arranged in the middle of the inner mast, which affects the driver's field of vision, the utility model provides a forklift mast hidden accessory pipeline structure, by arranging a connecting plate and a pulley group, and the pulley group is arranged directly below the lifting sprocket, and the pulley group mounting shaft is fixedly connected to the sprocket shaft through the connecting plate, so that the accessory pipeline that bypasses the pulley at the upper end is hidden in the lifting chain, thereby expanding the middle space of the inner mast, expanding the driver's field of vision, and thus improving the safety performance of the forklift.

[0004] To achieve the above-mentioned purpose, the utility model provides a forklift mast hidden accessory pipeline structure, including a mast assembly, two lifting chains symmetrically arranged on the inner side of the mast assembly and two sprockets matched with the lifting chains, characterized in that a pulley block is provided directly below the sprocket, and the accessory pipeline structure includes a left hose assembly and a right hose assembly symmetrically arranged, the upper ends of the left hose assembly and the right hose assembly are respectively wound around the corresponding pulley blocks, so that the left hose assembly and the right hose assembly are respectively hidden directly below the lifting chain, and the pulley block mounting shaft is fixedly connected to the sprocket shaft by a connecting plate.

[0005] Preferably, the left hose assembly is provided with two pieces, which are arranged side by side on the left pulley block, and include a first transition joint, a first high-pressure hose, a second transition joint and a first U-shaped steel pipe welded together;

[0006] The right hose assembly is provided with two parts, which are arranged side by side on the right pulley block, and include a third transition joint, a second high-pressure hose, a fourth transition joint and a second U-shaped steel pipe welded together.

[0007] Preferably, the rear lower ends of the first and second high-pressure hoses are respectively fixed to the left and right sides of the outer mast crossbeam by pipe clamps, the rear upper ends are respectively fixedly connected to the left and right outer mast chain plates by pipe clamps, and the front lower ends are respectively fixedly connected to the left and right fork frame chain plates by pipe clamps.

[0008] Preferably, a first washer is provided on the sprocket shaft between the connecting plate and the sprocket, and a second washer is provided on the pulley assembly mounting shaft between the connecting plate and the pulley assembly.

[0009] Preferably, the pulley block comprises a pulley block mounting shaft, two pulleys, two bearing sleeves, and two rolling bearings. The two bearing sleeves are fixedly connected to the pulley block mounting shaft in sequence, the two pulleys are respectively sleeved on the outside of the two bearing sleeves, the inner rings of the two rolling bearings are respectively fastened to the corresponding bearing sleeves, and the outer rings are respectively fastened to the corresponding pulley inner holes.

[0010] Preferably, the other ends of the two first U-shaped steel pipes are welded and connected to the oil inlet and outlet of the left fork distance adjusting cylinder through the third high-pressure rubber hose and the fourth high-pressure rubber hose respectively; the other ends of the two second U-shaped steel pipes are welded and connected to the oil inlet and outlet of the right fork distance adjusting cylinder through the fifth high-pressure rubber hose and the sixth high-pressure rubber hose respectively.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides a connecting plate and a pulley block, and the pulley block is arranged directly below the lifting sprocket, so that the accessory pipeline that bypasses the pulley block at the upper end is hidden in the lifting chain, which expands the middle space of the inner door frame and expands the driver's field of vision, thereby improving the safety performance of the forklift;

[0013] 2. The utility model fixes the accessory pipelines on the outer door frame hanging chain plate, the outer door frame crossbeam and the fork frame hanging chain plate by arranging multiple pipe clamps, so that the high-pressure hoses of the accessory pipelines are neatly fixed, the appearance is beautiful, and the driver's field of vision is further expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the left and right hose components, lifting chains, and sprockets in the embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the left and right hose components of the embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the sprocket, pulley assembly and connecting plate of the embodiment of the utility model;

[0018] Figure 5 This is a schematic diagram of the existing accessories pipeline structure.

[0019] In the figure: 1, outer door frame assembly, 101, outer door frame hanging chain plate, 102, outer door frame crossbeam, 2, lifting chain, 3, sprocket, 301, sprocket shaft, 4, pulley block, 401, pulley block mounting shaft, 402, pulley, 403, bearing sleeve, 404, rolling bearing, 5, left hose assembly, 501, first transition joint, 502, first high-pressure hose, 503, second transition joint, 504, first U-shaped steel pipe welding, 505, third High-pressure hose, 506, fourth high-pressure hose, 6, right hose assembly, 601, third transition joint, 602, second high-pressure hose, 603, fourth transition joint, 604, second U-shaped steel pipe welding, 605, fifth high-pressure hose, 606, sixth high-pressure hose, 7, connecting plate, 8, pipe clamp, 9, first gasket, 10, second gasket, 11, fork frame chain plate, 4', roller group, 5', left hose assembly, 6', right hose assembly. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention.

[0022] like Figures 1 to 4 As shown, an embodiment of the utility model includes a door frame assembly 1, two lifting chains 2 symmetrically arranged on the inner side of the door frame assembly 1 and two sprockets 3 matched with the lifting chains 2, a pulley block 4 is provided directly below the sprocket 3, and the accessory pipeline structure includes a left hose assembly 5 and a right hose assembly 6 symmetrically arranged on the left and right sides, and the upper ends of the left hose assembly 5 and the right hose assembly 6 are respectively wound around the corresponding pulley blocks 4, so that the left hose assembly 5 and the right hose assembly 6 are respectively hidden directly below the lifting chain 2, and the pulley block mounting shaft 401 is fixedly connected to the sprocket shaft 301 through a connecting plate 7.

[0023] The left hose assembly 5 has two parts, which are arranged side by side on the left pulley block 4, including a first transition joint 501, a first high-pressure hose 502, a second transition joint 503 and a first U-shaped steel pipe weld 504;

[0024] The right hose assembly 6 has two parts, which are arranged side by side on the right pulley block 4, including a third transition joint 601, a second high-pressure hose 602, a fourth transition joint 603 and a second U-shaped steel pipe weld 604.

[0025] Preferably, the rear lower ends of the first high-pressure hose 502 and the second high-pressure hose 602 are respectively fixed to the left and right sides of the outer door frame cross beam 102 by pipe clamps 8, the rear upper ends are respectively fixedly connected to the left and right outer door frame chain plates 101 by pipe clamps 8, and the front lower ends are respectively fixedly connected to the left and right fork frame chain plates 13 by pipe clamps 8.

[0026] Preferably, a first washer 9 is provided on the sprocket shaft 301 between the connecting plate 7 and the sprocket 3 , and a second washer 10 is provided on the pulley assembly mounting shaft 401 between the connecting plate 7 and the pulley assembly 4 .

[0027] Preferably, the pulley block 4 includes a pulley block mounting shaft 401, two pulleys 402, two bearing sleeves 403, and two rolling bearings 404. The two bearing sleeves 403 are fixedly connected to the pulley block mounting shaft 401 in sequence, the two pulleys 402 are respectively sleeved on the outside of the two bearing sleeves 403, the inner rings of the two rolling bearings 404 are respectively fastened to the corresponding bearing sleeves 403, and the outer rings are respectively fastened to the inner holes of the corresponding pulleys 402.

[0028] Preferably, the other ends of the two first U-shaped steel pipe welds 504 are connected to the oil inlet and outlet of the left fork distance adjusting cylinder through the third high-pressure hose 505 and the fourth high-pressure hose 506 respectively; the other ends of the two second U-shaped steel pipe welds 604 are connected to the oil inlet and outlet of the right fork distance adjusting cylinder through the fifth high-pressure hose 605 and the sixth high-pressure hose 606 respectively.

[0029] The utility model changes the pulley block 4 for installing the accessory pipeline from being installed in the middle of the inner door frame and being arranged on the inner side of the sprocket 3 to being installed directly below the sprocket 3, thereby hiding the accessory pipeline in the lifting chain 2, expanding the middle space of the inner door frame, greatly expanding the driver's field of vision, and improving the safety performance of the forklift.

[0030] The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A forklift mast hidden attachment pipeline structure, comprising a mast assembly, two lifting chains symmetrically arranged on the inner side of the mast assembly, and two sprockets matched with the lifting chains, characterized in that: A pulley block is provided directly below the sprocket, and the accessory pipeline structure includes a left hose assembly and a right hose assembly which are symmetrical on the left and right sides. The upper ends of the left hose assembly and the right hose assembly are respectively wound around the corresponding pulley blocks, so that the left hose assembly and the right hose assembly are respectively hidden directly below the lifting chain, and the pulley block mounting shaft is fixedly connected to the sprocket shaft through a connecting plate.

2. A forklift mast hidden attachment pipeline structure according to claim 1, characterized in that: The left hose assembly is provided with two pieces, which are arranged side by side on the left pulley block, and include a first transition joint, a first high-pressure hose, a second transition joint and a first U-shaped steel pipe welded together; The right hose assembly is provided with two parts, which are arranged side by side on the right pulley block, and include a third transition joint, a second high-pressure hose, a fourth transition joint and a second U-shaped steel pipe welded together.

3. A forklift mast hidden attachment pipeline structure according to claim 2, characterized in that: The rear lower ends of the first and second high-pressure hoses are respectively fixed to the left and right sides of the outer door frame crossbeam through pipe clamps, the rear upper ends are respectively fixedly connected to the left and right outer door frame hanging chain plates through pipe clamps, and the front lower ends are respectively fixedly connected to the left and right fork frame hanging chain plates through pipe clamps.

4. A forklift mast hidden attachment pipeline structure according to claim 2, characterized in that: A first washer is provided on the sprocket shaft between the connecting plate and the sprocket, and a second washer is provided on the pulley assembly mounting shaft between the connecting plate and the pulley assembly.

5. The forklift mast hidden attachment pipeline structure according to claim 1, characterized in that: The pulley block includes a pulley block mounting shaft, two pulleys, two bearing sleeves, and two rolling bearings. The two bearing sleeves are fixedly connected to the pulley block mounting shaft in sequence. The two pulleys are respectively sleeved on the outside of the two bearing sleeves. The inner rings of the two rolling bearings are respectively fastened to the corresponding bearing sleeves, and the outer rings are respectively fastened to the corresponding pulley inner holes.

6. A forklift mast hidden attachment pipeline structure according to claim 2, characterized in that: The other ends of the two first U-shaped steel pipes are welded and connected to the oil inlet and outlet of the left fork distance adjusting cylinder through the third high-pressure rubber hose and the fourth high-pressure rubber hose respectively; the other ends of the two second U-shaped steel pipes are welded and connected to the oil inlet and outlet of the right fork distance adjusting cylinder through the fifth high-pressure rubber hose and the sixth high-pressure rubber hose respectively.

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