A lifting platform device for manual hydraulic forklift linkage

Abstract

The present invention discloses a lifting platform device for manual hydraulic forklift linkage, the lifting platform device comprises a hydraulic connecting rod, a base, a support swing rod, a fork plate swing rod, a support connecting rod, a support crossbeam, a scissor-type support, and a platform, characterized in that: the base is detachably connected to the fork plate through a connecting piece, the hydraulic connecting rod is connected to the fork plate swing rod through a hinge b, the fork plate swing rod is installed under the fork plate through a hinge a, the other end of the fork plate swing rod is connected to the wheel through a hinge c, the support swing rod is coaxially installed side by side with the fork plate swing rod through hinges a and hinges c on the inner side of the fork plate, the support connecting rod is respectively connected to the support swing rod and the support crossbeam through hinges d and hinges k, the support crossbeam is arranged between a pair of support plates, and the two are formed into an integrated support, and the upper and lower ends of the scissor-type support are respectively fixed on the platform and the base. The present invention has a simple structure, a reasonable design, and quick assembly and disassembly, which improves the use effect of the manual hydraulic forklift in placing goods on a normal height platform, picking and placing shelves, and assembling and lifting equipment maintenance workpieces, and enhances the practical function of the manual hydraulic forklift.

Description

Technical Field

[0001] The invention relates to the technical field of manual hydraulic forklifts, and in particular to a lifting platform device for linkage with a manual hydraulic forklift. Background Art

[0002] The existing manual hydraulic forklift is mainly a short-distance handling and loading and unloading machine with a fork plate and a jack as the working device. It realizes the lifting function through the transmission and support of the hydraulic system and mechanical mechanism. It occupies a small space, is light and compact, has a low cost, has good flexibility, and has a strong lifting capacity. It is suitable for operations in many occasions. The total lifting height of ordinary commonly used manual hydraulic forklifts is about 180mm. When placing goods on ordinary height platforms, picking and placing goods on shelves, and lifting and lowering workpieces for equipment maintenance, it still needs to be manually lifted and lowered, which has a high labor intensity. In actual use, the lifting height is too low, which causes limitations in actual use. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a lifting platform device for manual hydraulic forklift linkage, thereby solving the limitation of the prior art that the total lifting height of the manual hydraulic forklift is too low.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A lifting platform device for manual hydraulic forklift linkage, the manual hydraulic forklift comprising a fork plate (9), a forklift handle (14), the lifting platform device comprising a hydraulic connecting rod (1), a base (2), a support swing rod (3), a fork plate swing rod (4), a support connecting rod (5), a support crossbeam (6), a scissor-type support (7), and a platform (8), characterized in that: the base is detachably connected to the fork plate through a connecting piece, the hydraulic connecting rod is connected to the fork plate swing rod through a hinge b, the fork plate swing rod is installed under the fork plate through a hinge a, and the other end of the fork plate swing rod is One end is connected to the wheel via hinge c, the support swing arm is coaxially installed on the inner side of the fork plate in parallel with the fork plate swing arm via hinge a and hinge c, the support connecting rod is respectively connected to the support swing arm and the support crossbeam via hinge d and hinge k, the support crossbeam is arranged between a pair of support plates (11), and the two form an integrated support; the scissor-type support comprises a first scissor-type support (71) and a second scissor-type support (72), the first scissor-type support and the second scissor-type support are hingedly assembled at hinge O, and the upper and lower ends of the scissor-type support are respectively fixed on the platform and the base.

[0006] Furthermore, the platform is provided with a slide inside, and the platform is fixed to the upper end of the scissor-type bracket by a fixed hinge h and a movable hinge g, and the movable hinge g performs horizontal sliding movement in the slide of the platform; the base is provided with a slide inside, and the bottom of the base is installed to the fork plate with bolts, and the base is fixed to the lower end of the scissor-type bracket by a fixed hinge f and a movable hinge e, and the movable hinge e performs horizontal sliding movement in the slide of the base.

[0007] Furthermore, the hinge a is arranged below the fork plate, the hinge c is arranged between the two wheels, the hinge k is arranged on the second scissor-type bracket, and the hinge g and the hinge e are respectively located on the left side of the hinge h and the hinge f.

[0008] Furthermore, there are two support rocker arms, which are symmetrically arranged about the support connecting rod (5), and the two hinges a and the two hinges o are also symmetrically arranged about the support connecting rod.

[0009] Furthermore, the hydraulic connecting rod is connected to the connecting rod 1 (12) via a hinge m, the connecting rod 1 is connected to the connecting rod 2 (13) via a hinge L, the connecting rod 2 is connected to the wheel below the forklift handle (14) via a hinge n, and the hinge L is located above the fork plate.

[0010] Furthermore, the support swing arm is coaxially installed with the hinge a of the fork plate swing arm and the hinge of the wheel connection end, and swings coaxially and synchronously.

[0011] Furthermore, the bracket swing arm can be separated from the rotating shaft at the connecting hinge a and the hinge c of the fork plate swing arm, and the rotating shaft at the swing hinge a and the hinge c of the fork plate swing arm can be replaced and lengthened.

[0012] The lifting platform device for manual hydraulic forklift linkage comprises a hydraulic connecting rod, a fork plate swing rod, a bracket swing rod, a bracket connecting rod, a bracket crossbeam, a bracket, a base and a platform, wherein the two ends of the hydraulic connecting rod connect the forklift hydraulic transmission mechanism with the fork plate swing rod through fixed hinges; the fork plate swing rod is installed under the fork plate through a fixed hinge, and the other end is connected to the wheel through a hinge; the bracket swing rod is connected to the wheel hinge shaft by adopting a hinge a rotating shaft made of a lengthened fork plate swing rod, and is coaxially installed side by side on the inner side of the fork plate; the two ends of the bracket connecting rod connect the bracket swing rod with the bracket crossbeam through fixed hinges; the bracket crossbeam is between a pair of bracket plates to form an integrated bracket; the scissor-type bracket is a two-piece bracket hinged at point O, and the upper and lower ends are respectively fixed on the platform and the base; the platform is provided with a slideway inside, which is fixed to the upper end of the bracket by a fixed hinge and a movable hinge; the base is provided with a slideway, and the bottom is bolted to the fork plate, and the lower end of the bracket is fixed by a fixed hinge and a movable hinge.

[0013] The support swing arm is coaxially installed with the fork swing arm hinge a and the wheel connection end hinge, and swings coaxially and synchronously. The distance from the swing axis point of the support swing arm to the axis center of the hinge at the other end, the length of the support connecting rod, the setting position of the support crossbeam and the platform lifting height are mechanically controlled. Figure 3 The support connecting rod, support beam, support, base and platform are connected by swing hinges and fixed hinges to form a scissor lift, and its lifting height, lifting weight, type and basic parameters meet the standards of the machinery industry.

[0014] The lifting platform device used for manual hydraulic forklift linkage, when the force of the forklift hydraulic system and the hydraulic connecting rod of the mechanical mechanism transmit the force to the fork plate swing rod to lift the fork plate, the support swing rod and the fork plate swing rod are coaxial and swing synchronously, and the support swing rod and the connecting end of the support connecting rod swing synchronously and transmit the force synchronously, so that it can be lifted and lowered from the scissor-type lifting platform through the support connecting rod transmission, and the total height after lifting can reach about 800mm, thereby improving the application effect of the manual hydraulic forklift in the lifting of goods on ordinary height platforms, shelf picking and placing and handling, equipment maintenance and workpiece assembly, and enhancing the practical function of the manual hydraulic forklift.

[0015] The present invention has a simple structure, reasonable design, and quick assembly and disassembly. It only requires removing the mounting bolts between the base and the fork plate, and separating the bracket swing arm from the fork plate swing arm connecting hinge shaft, so that the linkage lifting platform can be removed and the manual hydraulic forklift can be restored to its original state. Similarly, the hinge a shaft of the fork plate swing arm of multiple manual hydraulic forklifts with different lifting capacities and the hinge shaft of the wheel connection end can be replaced and lengthened, so that the linkage lifting platform device can be installed and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic diagram of the structure of the lifting platform device of the present invention when it is raised (front view);

[0017] FIG2 is a schematic diagram of the structure of the lifting platform device of the present invention (top view);

[0018] Figure 3 It is a structural schematic diagram (front view) of the lifting platform device of the present invention when it is lowered.

[0019] In the figure: hydraulic connecting rod 1, base 2, bracket rocker 3, fork plate rocker 4, bracket connecting rod 5, bracket cross beam 6, scissors-type bracket 7, first scissors-type bracket 71, second scissors-type bracket 72, platform / lifting platform 8, fork plate 9, wheel 10, bracket plate 11, connecting rod one 12, connecting rod two 13, forklift handle 14; hinge points / hinge points / pivot parts a, b, c, d, e, f, g, h, k, l, m, n, o. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-3 As shown, a lifting platform device for manual hydraulic forklift linkage, the manual hydraulic forklift includes a fork plate 9, a forklift handle 14, the lifting platform device includes a hydraulic connecting rod 1, a base 2, a support swing rod 3, a fork plate swing rod 4, a support connecting rod 5, a support crossbeam 6, a scissor-type support 7, and a platform 8. The base 2 is detachably connected to the fork plate 9 through a connecting piece, the hydraulic connecting rod 1 is connected to the fork plate swing rod 4 through a hinge b, the fork plate swing rod 4 is installed below / under the fork plate 9 through a hinge a, and the other end of the fork plate swing rod 4 is connected to the wheel 1 through a hinge c. 0, the support swing rod 3 is coaxially installed side by side with the fork plate swing rod 4 on the inner side of the fork plate 9 through hinges a and hinges c, the support connecting rod 5 is connected to the support swing rod 3 and the support cross beam 6 through hinges d and hinges k respectively, the support cross beam 6 is arranged between a pair of support plates 11, and the two form an integrated support; the scissors-type support 7 includes a first scissors-type support 71 and a second scissors-type support 72, the first scissors-type support 71 and the second scissors-type support 72 are hingedly combined at the hinge point O, and the upper and lower ends of the scissors-type support 7 are respectively fixed on the platform 8 and the base 2.

[0023] The platform 8 has a slide inside, and the platform 8 is fixed to the upper end of the scissor-type bracket 7 by a fixed hinge h and a movable hinge g, and the movable hinge g performs horizontal sliding movement in the slide of the platform 8; the base 2 has a slide inside, and the bottom of the base 2 is installed on the fork plate 9 with bolts, and is fixed to the lower end of the scissor-type bracket 7 by a fixed hinge f and a movable hinge e, and the movable hinge e performs horizontal sliding movement in the slide of the base 2.

[0024] Among them, hinge points a, b, c, d, k, f, and h are fixed hinge connection points, and e and g are movable hinge connection points. Hinge a is set below the fork plate 9, hinge c is set between the two wheels 10, hinge k is set on the second scissor-type bracket 72, and hinge g and hinge e are located on the left side of hinge h and hinge f respectively. There are two bracket swing rods 3, which are symmetrically arranged about the bracket connecting rod 5, and hinge a and hinge o are also symmetrically arranged about the bracket connecting rod 5.

[0025] The hydraulic connecting rod 1 is connected to the connecting rod 1 12 through a hinge m, the connecting rod 1 12 is connected to the connecting rod 2 13 through a hinge L, the connecting rod 2 13 is connected to the wheel 10 below the forklift handle 14 through a hinge n, and the hinge L is located above the fork plate 9.

[0026] The lifting platform device for manual hydraulic forklift linkage utilizes the hydraulic connecting rod 1 that transmits the hydraulic force to the fork plate 9 lifted by the forklift, pushes the fork plate swing rod 4 to swing around the point a through the point e, and the point c drives the wheel downward to transmit the force to the ground, converting the swinging motion of the fork plate swing rod 4 into the lifting motion of the fork plate. Similarly, because the support swing rod 3 is coaxially installed side by side with the fork plate swing rod 4 through the hinge a and the hinge c, when the point c drives the wheel downward to transmit the force to the ground, a reaction force is generated and transmitted to the point d of the support swing rod 3. The force at the point d is transmitted to the point k of the support cross beam 6 through the point k of the support connecting rod 5, pushing the scissor-type support 7 to swing. The swinging motion of the scissor-type support 7 is converted into the platform lifting motion through the scissor-type lifting platform mechanism, thereby increasing the total height of the manual hydraulic forklift after lifting, and improving the practical function of the forklift.

[0027] The present invention has a simple structure, reasonable design, and quick assembly and disassembly. It only needs to remove the mounting bolts between the base 2 and the fork plate 9, and separate the bracket swing arm 3 from the rotating shaft connecting the hinges at points a and c of the fork plate swing arm 4, so that the linked lifting platform can be removed and the manual hydraulic forklift can be restored to its original state. Similarly, the rotating shafts at points a and c of the hinges of the fork plate swing arms 4 of multiple manual hydraulic forklifts with different lifting capacities can be replaced and lengthened, and the linked lifting platform device can be installed and used.

[0028] The present invention has a simple structure, reasonable design, and quick assembly and disassembly. It only requires removing the mounting bolts between the base and the fork plate, and separating the bracket swing arm from the fork plate swing arm connecting hinge shaft, so that the linkage lifting platform can be removed and the manual hydraulic forklift can be restored to its original state. Similarly, the hinge a shaft of the fork plate swing arm of multiple manual hydraulic forklifts with different lifting capacities and the hinge shaft of the wheel connection end can be replaced and lengthened, so that the linkage lifting platform device can be installed and used.

[0029] The above-mentioned implementation modes are for explanation of the present invention rather than limitation of the present invention. It can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lifting platform device for linkage with a manual hydraulic forklift, the manual hydraulic forklift comprising a fork plate (9), a forklift handle (14), the lifting platform device comprising a hydraulic connecting rod (1), a base (2), a support swing rod (3), a fork plate swing rod (4), a support connecting rod (5), a support crossbeam (6), a scissor-type support (7), and a platform (8), characterized in that: The base is detachably connected to the fork plate via a connecting piece, the hydraulic connecting rod is connected to the fork plate swing rod via a hinge b, the fork plate swing rod is installed under the fork plate via a hinge a, the other end of the fork plate swing rod is connected to the wheel via a hinge c, the support swing rod is coaxially installed side by side with the fork plate swing rod via hinges a and c, the support connecting rod is respectively connected to the support swing rod and the support cross beam via hinges d and k, the support cross beam is arranged between a pair of support plates (11), and the two form an integrated support; the scissor-type support comprises a first scissor-type support (71) and a second scissor-type support (72), the first scissor-type support and the second scissor-type support are hingedly combined at a hinge O, the upper and lower ends of the scissor-type support are respectively fixed to the platform and the base, The platform is provided with a slideway inside, and the platform is fixed to the upper end of the scissor-type bracket by a fixed hinge h and a movable hinge g, and the movable hinge g performs horizontal sliding movement in the slideway of the platform; the base is provided with a slideway inside, and the bottom of the base is bolted to the fork plate, and the base is fixed to the lower end of the scissor-type bracket by a fixed hinge f and a movable hinge e, and the movable hinge e performs horizontal sliding movement in the slideway of the base, The hinge a is arranged below the fork plate, the hinge c is arranged between the two wheels, the hinge k is arranged on the first scissor-type bracket, the hinge g and the hinge e are respectively located on the left side of the hinge h and the hinge f. The support rocker rods are two in number and are symmetrically arranged about the support connecting rod (5). The two hinges a and the two hinges o are also symmetrically arranged about the support connecting rod. The hydraulic connecting rod is connected to the connecting rod 1 (12) via a hinge m, the connecting rod 1 is connected to the connecting rod 2 (13) via a hinge L, the connecting rod 2 is connected to the wheel below the forklift handle (14) via a hinge n, and the hinge L is located above the fork plate. The support swing rod and the hinge a of the fork plate swing rod and the hinge c of the wheel connection end are coaxially installed and swing coaxially and synchronously.

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