CN109484996B

CN109484996B - Lifting device

Info

Publication number: CN109484996B
Application number: CN201811364804.4A
Authority: CN
Inventors: 陈伟景
Original assignee: Sixian Zhilai Machinery Technology Co Ltd
Current assignee: Zhangao Culture Technology Shandong Co ltd
Priority date: 2018-11-16
Filing date: 2018-11-16
Publication date: 2020-12-11
Anticipated expiration: 2038-11-16
Also published as: CN109484996A

Abstract

The invention discloses a lifting device, which comprises a base and is characterized in that: bilateral symmetry is equipped with U type set casing on the base longitudinal separation is equipped with a plurality of first dead levers between the U type set casing internalization is equipped with first set casing the inboard longitudinal separation of first set casing articulates there is a plurality of can from the top overturn and first set casing forms right angled second dead lever first set casing internalization is equipped with the second set casing, second set casing one side is the inclined plane the inboard longitudinal separation of second set casing articulates there is a plurality of can from the top overturn and second set casing forms right angled third dead lever, is equipped with the protective housing in the activity of one of them U type set casing one side be equipped with the actuating mechanism that can drive first set casing and upwards remove on the protective housing.

Description

Lifting device

Technical Field

The invention relates to the technical field of lifting equipment, in particular to a lifting device.

Background

At present, lifting equipment mainly has two modes of motor transmission and hydraulic transmission, the motor transmission consumes electric power, the maintenance is difficult, the hydraulic transmission has certain limitation on height, the lifting equipment is generally applied to larger places, the application of the lifting equipment to places with smaller space is limited, and the lifting height is determined in a fuzzy mode and cannot be controlled accurately.

Disclosure of Invention

In order to overcome the above purpose, the invention adopts the following scheme:

the utility model provides a lifting device, includes the base, its characterized in that: u-shaped fixing shells are symmetrically arranged on the left and the right of the base, a plurality of first fixing rods are longitudinally arranged between the U-shaped fixing shells at intervals, a first fixed shell is movably arranged in the U-shaped fixed shell, a plurality of second fixed rods which can be turned over from top to bottom and form right angles with the first fixed shell are longitudinally hinged at intervals on the inner side of the first fixed shell, a second fixed shell is movably arranged in the first fixed shell, one side of the second fixed shell is an inclined plane, a plurality of third fixing rods which can be turned over from top to bottom and form right angles with the second fixing shell are longitudinally hinged at intervals on the inner side of the second fixing shell, wherein one side of a U-shaped fixed shell is movably provided with a protective shell, the protective shell is provided with a driving mechanism which can drive the first fixed shell to move upwards, and a switching mechanism which locks the second fixed shell and enables the driving mechanism to be connected with the second fixed shell for driving when the second fixed shell moves to the top end of the U-shaped fixed shell is arranged in the protective shell.

The lifting device is characterized in that the driving mechanism comprises a first rotating shaft which penetrates through one side of the protective shell from left to right, one end of the first rotating shaft is connected with the handle, the other end of the first rotating shaft is connected with the worm, a second rotating shaft is arranged behind the U-shaped fixed shell, one end of the second rotating shaft is connected with the worm, the worm is meshed with the worm, the other end of the second rotating shaft is connected with the gear, one side of the first fixed rod is provided with a first straight rack which is longitudinally arranged, the gear is meshed with the first straight rack, and a third rotating shaft is connected between the gears.

The lifting device is characterized in that the switching mechanism comprises a rotating block arranged in a protective shell, a rotating rod is connected to the rotating block, a sliding groove is formed in the rotating rod, a first guide groove and a second guide groove are symmetrically formed in one side of a first fixed shell, a third guide groove is formed in one side, penetrating through the U-shaped fixed shell, of the top of the U-shaped fixed shell, a first guide groove penetrates through one side of the first fixed shell and extends into the first fixed shell, a first protruding block is arranged at the bottom of the second guide groove, guide rails are respectively arranged at two ends, located on the rotating rod, of the protective shell, a first sliding block and a second sliding block are respectively arranged on the guide rails, one end of the first sliding block is an inclined plane and penetrates through the U-shaped fixed shell and extends into the second guide groove to be in contact with the first protruding block in a movable mode, a first reset spring is connected between the other end of the first sliding block and the protective shell, second slider one end runs through the inclined plane activity tangent of third guide way, first guide way and second set casing one side be equipped with the second lug on first slider and the second slider, the activity of second lug sets up in the sliding tray U type set casing one side is equipped with the through-hole first set casing one side bottom is equipped with the third lug, third lug activity joint is in the through-hole the activity is equipped with the fixed plate between first set casing and the second set casing be connected with a plurality of second reset spring between fixed plate and the second set casing top is equipped with the fourth dead lever one end vertically is equipped with the second spur rack, second spur rack and gear engagement.

In summary, compared with the prior art, the invention has the beneficial effects that:

the lifting mechanism is simple in structure and convenient to use, the first fixing shell is driven to ascend through the driving mechanism, when the first fixing shell ascends to the top of the U-shaped fixing shell, the first fixing shell is locked through the switching mechanism to prevent the first fixing shell from moving, then the driving mechanism is connected with the second fixing shell to drive the second fixing shell to move, the length is increased, the first fixing rod enables people to step on the first fixing shell, and the first fixing rod and the second fixing rod can be turned over and stepped on by people, so that people can slowly climb up to a high place, the occupied space is small, the lifting height is manually adjusted, and the use requirements of people are met.

Drawings

FIG. 1 is a perspective view of one embodiment of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is an exploded view of one embodiment of the present invention;

FIG. 5 is a second exploded view of the present invention.

Detailed Description

The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:

as shown in fig. 1 to 5, a lifting device comprises a base 1, U-shaped fixing shells 2 are symmetrically arranged on the base 1, a plurality of first fixing rods 4 are longitudinally arranged between the U-shaped fixing shells 2 at intervals, a first fixing shell is movably arranged in the U-shaped fixing shell 2, a plurality of second fixing rods 33 capable of being turned over from top to bottom to form a right angle with the first fixing shell are longitudinally hinged on the inner side of the first fixing shell at intervals, a second fixing shell 30 is movably arranged in the first fixing shell, one side of the second fixing shell 30 is an inclined surface, a plurality of third fixing rods 32 capable of being turned over from top to bottom to form a right angle with the second fixing shell 30 are longitudinally hinged on the inner side of the second fixing shell 30 at intervals, a protection shell 6 is movably arranged on one side of the U-shaped fixing shell 2, a driving mechanism 100 capable of driving the first fixing shell to move upwards is arranged on the protection shell 6, the protective housing 6 is internally provided with a switching mechanism 200 which locks the second fixed shell 30 when the second fixed shell 30 moves to the top end of the U-shaped fixed shell 2 and enables the driving mechanism 100 and the second fixed shell 30 to be connected with a drive, the first fixed shell is driven to ascend through the driving mechanism, when the first fixed shell ascends to the top of the U-shaped fixed shell, the first fixed shell is locked through the switching mechanism to prevent the first fixed shell from moving, then the driving mechanism is connected with the second fixed shell to drive the second fixed shell to move, so that the length is increased, the first fixed rod can enable people to step on the first fixed rod, the first fixed rod and the second fixed rod can be turned over and then people step on the first fixed rod, so that people slowly climb up to a high place, the occupied space is small, the lifting height is manually adjusted, and the use requirements of people are met.

The driving mechanism 100 comprises a first rotating shaft 5 which penetrates through one side of a protective shell 6 from left to right, one end of the first rotating shaft 5 is connected with a handle 3, the other end of the first rotating shaft 5 is connected with a worm 12, a second rotating shaft 13 is arranged behind the U-shaped fixed shell 2, one end of the second rotating shaft 13 is connected with a turbine, the turbine is meshed with the worm 12, the other end of the second rotating shaft 13 is connected with a gear 14, one side of a first fixed rod 4 is longitudinally provided with a first straight rack 11, the gear 14 is meshed with the first straight rack 11, a third rotating shaft 9 is connected between the gears 14, the handle rotates to drive the first rotating shaft to rotate by rotating the handle, the first rotating shaft rotates to drive the worm, the worm rotates to drive the turbine to rotate, the turbine rotates to drive the second rotating shaft to rotate, and the second rotating shaft rotates to drive the gear to rotate, the gear rotates to drive the first straight rack to move up and down, so that the first fixing shell is driven to move upwards, the structure is simple, and the practicability is high.

In the invention, the switching mechanism 200 comprises a rotating block 19 arranged in a protective shell 6, a rotating rod 20 is connected on the rotating block 19, a sliding groove 21 is arranged on the rotating rod 20, a first guide groove 73 and a second guide groove 76 are symmetrically arranged on one side of a first fixed shell, a third guide groove 46 is arranged on the top of the U-shaped fixed shell 2 and penetrates through one side of the U-shaped fixed shell 2, the first guide groove 73 penetrates through one side of the first fixed shell and extends into the first fixed shell, a first lug 35 is arranged at the bottom of the second guide groove 76, guide rails 18 are respectively arranged at two ends of the rotating rod 20 in the protective shell 6, a first sliding block 16 and a second sliding block 26 are respectively arranged on the guide rails 18, one end of the first sliding block 16 is an inclined plane and extends into the second guide groove 76 through the U-shaped fixed shell 2 and is in movable contact with the first lug 35, a first return spring 94 is connected between the other end of the first sliding block 16 and the protective shell 6, one end of the second sliding block 26 penetrates through the third guide groove 46 and the first guide groove 73 to be tangent to the slope of one side of the second fixed shell 30, the first sliding block 16 and the second sliding block 26 are provided with the second convex block 15, the second convex block 15 is movably arranged in the sliding groove 21, one side of the U-shaped fixed shell 2 is provided with the through hole 22, the bottom of one side of the first fixed shell is provided with the third convex block 34, the third convex block 34 is movably clamped in the through hole 22, the fixed plate 24 is movably arranged between the first fixed shell and the second fixed shell 30, the plurality of second return springs 36 are connected between the fixed plate 24 and the second fixed shell 30, the top end of the second fixed shell 30 is provided with the fourth fixed rod 31, one end of the fourth fixed rod 31 is longitudinally provided with the second straight rack 10, the second straight rack 10 is meshed with the gear 14, when the first fixed shell moves to the top end of the U-shaped fixed shell, the third lug removes in the through-hole, thereby prevent that first set casing from removing, first set casing removes and drives the second lug and remove, it makes first slider remove to extrude first slider when the second lug removes first slider, first slider drives the bull stick and rotates, the bull stick rotates and drives the second slider and remove and peg graft in third guide way and the first guide way and extrude the second set casing and make the second set casing remove, the second set casing removes and drives the second spur rack and remove and gear engagement, thereby it rises to drive the second spur rack, the second spur rack rises and drives the second set casing and rise, and convenient operation, and the steam generator is simple in structure.

While there have been shown and described what are at present considered to be the fundamental principles and essential features of the invention and advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. A lifting device comprises a base (1), and is characterized in that: the base (1) is symmetrically provided with U-shaped fixed shells (2) at left and right, a plurality of first fixed rods (4) are longitudinally arranged between the U-shaped fixed shells (2) at intervals, a first fixed shell is movably arranged in the U-shaped fixed shell (2), a plurality of second fixed rods (33) which can be overturned from top to bottom and form right angles with the first fixed shell are longitudinally hinged at the inner side of the first fixed shell at intervals, a second fixed shell (30) is movably arranged in the first fixed shell, one side of the second fixed shell (30) is an inclined plane, a plurality of third fixed rods (32) which can be overturned from top to bottom and form right angles with the second fixed shell (30) are longitudinally hinged at the inner side of the second fixed shell (30) at intervals, a protective shell (6) is movably arranged at one side of the U-shaped fixed shell (2), and a driving mechanism (100) capable of driving the first fixed shell to move upwards is arranged on the protective shell (6), a switching mechanism (200) which locks the second fixed shell (30) and drives the driving mechanism (100) to be connected with the second fixed shell (30) when the second fixed shell (30) moves to the top end of the U-shaped fixed shell (2) is arranged in the protective shell (6), the driving mechanism (100) comprises a first rotating shaft (5) which penetrates through one side of the protective shell (6) from left to right, one end of the first rotating shaft (5) is connected with a handle (3), the other end of the first rotating shaft (5) is connected with a worm (12), a second rotating shaft (13) is arranged behind the U-shaped fixed shell (2), one end of the second rotating shaft (13) is connected with a turbine, the turbine is meshed with the worm (12), the other end of the second rotating shaft (13) is connected with a gear (14), one side of the first fixed rod (4) is longitudinally provided with a first straight rack (11), the gear (14) is meshed with the first straight rack (11), a third rotating shaft (9) is connected between the gears (14), the switching mechanism (200) comprises a rotating block (19) arranged in a protective shell (6), the rotating block (19) is connected with a rotating rod (20), a sliding groove (21) is formed in the rotating rod (20), a first guide groove (73) and a second guide groove (76) are symmetrically formed in one side of the first fixed shell, a third guide groove (46) is formed in one side, penetrating through the U-shaped fixed shell (2), of the top of the U-shaped fixed shell (2), of the first guide groove (73) penetrates through one side of the first fixed shell and extends into the first fixed shell, a first convex block (35) is arranged at the bottom of the second guide groove (76), guide rails (18) are respectively arranged at two ends, located on the rotating rod (20), in the protective shell (6), the guide rail (18) is respectively provided with a first sliding block (16) and a second sliding block (26), one end of the first sliding block (16) is an inclined plane and penetrates through the U-shaped fixed shell (2) to extend into the second guide groove (76) to be tangent to the activity of the first lug (35), a first reset spring (94) is connected between the other end of the first sliding block (16) and the protective shell (6), one end of the second sliding block (26) penetrates through the third guide groove (46) and the first guide groove (73) to be tangent to the activity of the inclined plane on one side of the second fixed shell (30), the first sliding block (16) and the second sliding block (26) are respectively provided with a second lug (15), the second lug (15) is movably arranged in the sliding groove (21), one side of the U-shaped fixed shell (2) is provided with a through hole (22), the bottom on one side of the first fixed shell is provided with a third lug (34), and the third lug (34) is movably clamped in the through hole (22), be equipped with fixed plate (24) between first set casing and second set casing (30) the activity be connected with a plurality of second reset spring (36) between fixed plate (24) and second set casing (30) the second set casing (30) top is equipped with fourth dead lever (31) one end vertically is equipped with second spur rack (10), second spur rack (10) and gear (14) meshing.