CN219384650U - Liftable loading and unloading platform - Google Patents

Abstract

The utility model relates to a lifting loading platform which comprises four bases, wherein lifting mechanisms are arranged on the bases, and limiting mechanisms are arranged on the lifting mechanisms. This liftable loading platform, in loading and unloading the in-process, can be according to the needs of difference, make loading platform go up and down to the height of needs, this device can make loading platform do the vertical up-and-down movement freely through rotating the handle in the movable block outside, and because pass through connecting rod fixed connection between two movable blocks, thereby make the platform of both sides can remove to the same height jointly, keep loading platform's stability, in loading and unloading platform's lift in-process, after the platform moved to the position of needs, only need stop to rotate the handle, in order to maintain the stability of platform current position, can fix the gear in the position of moment through the joint between gag lever post and the internal gear, when needs to continue to remove, can continue the operation, and is easy and simple to handle, and stable in structure.

Description

Liftable loading and unloading platform

Technical Field

The utility model relates to the technical field of lifting, in particular to a lifting loading platform.

Background

The loading platform is a lifting mechanical device, can help a user to safely and efficiently load and unload trucks with various heights and sizes, and when the loading platform is lifted, the loading platform of the loading platform is lapped at the tail part of the truck, so that the carrying forklift can enter the truck from the loading platform to load and unload cargoes, and when the loading platform is lowered, the loading platform of the loading platform is retracted into a pit, so that the ground is flat.

In the prior art, the loading platform usually needs a plurality of steps, so that the loading platform can be lifted to a required position, the steps are complicated, in actual operation, the loading and unloading process is slow, and the lifting mechanisms around are respectively lifted, so that the height of the loading and unloading platform is easy to be in a state of not reaching the level, and the loading and unloading are influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a lifting loading platform which has the advantages of simple operation and the like and solves the problem of unstable lifting.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the lifting loading platform comprises four bases, wherein lifting mechanisms are arranged on the bases, limiting mechanisms are arranged on the lifting mechanisms, top plates are arranged above the lifting mechanisms, and side plates are hinged to the left side and the right side of each top plate;

the lifting mechanism comprises fixed blocks fixed on the upper surface of a base, racks are fixed on the upper surfaces of the fixed blocks at the two front sides, a movable block is movably connected to the outer sides of the fixed blocks, rotating rods are rotatably connected to the inner parts of the movable blocks at the two front sides, gears are fixed on the outer sides of the rotating rods, handles are fixed at the front ends of the rotating rods, and the same connecting rod is fixed in the inner parts of the movable blocks at the front side and the rear side;

the limiting mechanism comprises a supporting block fixed on the front face of the front side moving block, a sliding hole is formed in the front face of the front side moving block, a limiting rod is connected to the sliding hole in a sliding mode, and a balancing weight is fixed at the front end of the limiting rod.

Further, the side plates do circular motion by taking the hinge as a circle center, and the four bases are distributed under the top plate in a central symmetry mode.

Further, the inside of movable block is equipped with the perforation that supplies the connecting rod to run through, both ends all run through and extend to the outside of movable block around the connecting rod.

Further, the length and the width of the fixed block are matched with the length and the width of the inner cavity of the movable block, and the movable block moves linearly up and down on the outer side of the fixed block.

Further, the gear is meshed with the rack, and a mounting hole for the rotating rod to penetrate is formed in the gear.

Further, the through hole for the rotating rod to penetrate is formed in the moving block, and the limiting rod is clamped on the outer side of the gear.

Further, the limiting rod moves linearly up and down in the sliding hole, and the balancing weight moves circularly by taking the limiting rod as the circle center.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this liftable loading platform, in loading and unloading process, can be according to different needs, make loading platform go up and down to the height of needs, this device can make loading platform freely do vertical up-down movement through the handle in the rotation movable block outside to because pass through connecting rod fixed connection between two movable blocks, thereby make the platform of both sides can remove to the same height jointly, keep loading platform's stability.

2. This liftable loading platform, at loading platform's lift in-process, after the platform moved to the position of needs, only need stop the rotation handle, in order to maintain the stability of platform current position, can fix the gear in the position of moment through the joint between gag lever post and the inside gear, when needs continue to remove, only need shift out the gag lever post, alright continue the operation, easy and simple to handle, stable in structure.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a lifting mechanism according to the present utility model;

FIG. 3 is a schematic view of the gear and rack connection structure of the present utility model;

FIG. 4 is a schematic view of a spacing mechanism according to the present utility model;

FIG. 5 is a schematic view of a connecting structure of a limiting rod and a slide hole according to the present utility model.

In the figure: 1. a top plate; 2. a side plate; 3. a connecting rod; 4. a lifting mechanism; 401. a moving block; 402. a fixed block; 403. a rack; 404. a gear; 405. a rotating rod; 406. a handle; 5. a limiting mechanism; 501. a support block; 502. balancing weight; 503. a slide hole; 504. a limit rod; 6. and (5) a base.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a lifting loading platform in this embodiment includes four bases 6, a lifting mechanism 4 is disposed on the bases 6, a limiting mechanism 5 is disposed on the lifting mechanism 4, a top plate 1 is disposed above the lifting mechanism 4, two sides of the top plate 1 are hinged with side plates 2, a connecting frame is fixed on a lower surface of the top plate 1, and the connecting frame is fixed between front and rear moving blocks 401.

The side plate 2 moves circularly by taking the hinge as the center of a circle, and the four bases 6 are distributed under the top plate 1 in a central symmetry way.

Referring to fig. 2-3, in this embodiment, the lifting mechanism 4 includes a fixed block 402 fixed on the upper surface of the base 6, racks 403 are fixed on the upper surfaces of the two front side fixed blocks 402, the racks 403 are slidably connected to the inner right wall of the front side moving block 401, the outer side of the fixed block 402 is movably connected with the moving block 401, the moving block 401 is in a cuboid shape with hollow inside and missing bottom, the inner sides of the two front side moving blocks 401 are rotatably connected with a rotating rod 405, a gear 404 is fixed on the outer side of the rotating rod 405, through the cooperation of the gear 404 and the racks 403, the moving block 401 can be moved, a handle 406 is fixed at the front end of the rotating rod 405, the handle 406 is a zigzag rod, meanwhile, the height of the top plate 1 can be adjusted by rotating the two handles 406, the same connecting rod 3 is fixed inside the front side moving block 401, and the rear side moving block 401 is driven to move together through the connecting rod 3.

The inside of movable block 401 is equipped with the perforation that supplies connecting rod 3 to run through, and the front and back both ends of connecting rod 3 all run through and extend to the outside of movable block 401, and the length and the width of fixed block 402 and the length and the width looks adaptation in movable block 401 inner chamber, and movable block 401 is the linear motion about the outside of fixed block 402, and gear 404 and rack 403 meshing, the mounting hole that supplies bull stick 405 to run through has been seted up to the inside of gear 404, and the through-hole that supplies bull stick 405 to run through has been seted up to the inside of movable block 401.

By rotating the handle 406, the gear 404 is rotated with the rotation of the inner rotating rod 405, and the moving block 401 can move up and down as a whole in cooperation with the rack 403.

The loading platform can be lifted to the required height according to different requirements in the loading and unloading process.

Referring to fig. 4-5, in this embodiment, the limiting mechanism 5 includes a supporting block 501 fixed on the front surface of the front side moving block 401, and a limiting rod 504 may be directly placed above the supporting block 501 when the gear 404 is not fixed, a sliding hole 503 is formed on the front surface of the front side moving block 401, the inside of the sliding hole 503 is slidably connected with the limiting rod 504, the outer diameter of the limiting rod 504 is adapted to the width of the inner cavity of the sliding hole 503, and a balancing weight 502 is fixed at the front end of the limiting rod 504.

The limiting rod 504 is clamped on the outer side of the gear 404, the limiting rod 504 moves linearly up and down in the sliding hole 503, and the balancing weight 502 moves circularly around the limiting rod 504 as the center of a circle.

When the stop lever 504 is moved above the gear 404, the weight 502 is in a vertically downward state due to gravity, so that the gear 404 cannot rotate.

The gear 404 can be fixed through the clamping connection between the limiting rod 504 and the internal gear 404, so as to maintain the stability of the current position of the platform.

The working principle of the embodiment is as follows:

(1) When the loading platform needs to be lifted, the balancing weight 502 is removed, the gear 404 is in a rotatable state at the moment, when the handle 406 on the front side of the moving block 401 rotates anticlockwise, the gear 404 in the moving block 401 moves upwards on the rack 403 to drive the moving block 401 to move upwards wholly, when the handle 406 on the front side of the moving block 401 rotates clockwise, the gear 404 in the moving block 401 moves downwards to enable the moving block 401 to move downwards wholly, and as the connecting rod 3 is fixed in the moving block 401, the moving blocks 401 on the front side and the rear side are connected together, and when the moving block 401 on the front side moves upwards and downwards, the moving block 401 on the corresponding rear side also moves along with the moving block 401 to keep the stability of the platform.

(2) After the loading platform is moved to a required position, the position where the moving block 401 moves at the moment is required to be limited, the balancing weight 502 placed on the supporting block 501 is rotated, the limiting rod 504 moves up and down in the sliding hole 503, and when the limiting rod 504 moves to the position above the gear 404, the balancing weight 502 is in a vertically downward state due to gravity, so that the gear 404 cannot rotate, and the whole lifting mechanism 4 is in a stable state and cannot move.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a liftable loading platform, includes four bases (6), its characterized in that: the lifting mechanism (4) is arranged on the base (6), the limiting mechanism (5) is arranged on the lifting mechanism (4), the top of the lifting mechanism (4) is provided with a top plate (1), and the left side and the right side of the top plate (1) are hinged with side plates (2);

the lifting mechanism (4) comprises a fixed block (402) fixed on the upper surface of the base (6), racks (403) are fixed on the upper surfaces of the fixed block (402) on the two front sides, a movable block (401) is movably connected to the outer sides of the fixed block (402), a rotating rod (405) is rotatably connected to the inner parts of the movable block (401) on the two front sides, a gear (404) is fixed to the outer sides of the rotating rod (405), a handle (406) is fixed to the front end of the rotating rod (405), and the same connecting rod (3) is fixed to the inner parts of the movable block (401) on the front side and the rear side;

the limiting mechanism (5) comprises a supporting block (501) fixed on the front face of the front side moving block (401), a sliding hole (503) is formed in the front face of the front side moving block (401), a limiting rod (504) is connected inside the sliding hole (503) in a sliding mode, and a balancing weight (502) is fixed at the front end of the limiting rod (504).

2. A liftable loading dock according to claim 1, wherein: the side plates (2) do circular motion by taking the hinges as circle centers, and the four bases (6) are distributed under the top plate (1) in a central symmetry mode.

3. A liftable loading dock according to claim 1, wherein: the inside of movable block (401) is equipped with the perforation that supplies connecting rod (3) to run through, both ends all run through and extend to the outside of movable block (401) around connecting rod (3).

4. A liftable loading dock according to claim 1, wherein: the length and the width of the fixed block (402) are matched with those of the inner cavity of the movable block (401), and the movable block (401) moves linearly up and down on the outer side of the fixed block (402).

5. A liftable loading dock according to claim 1, wherein: the gear (404) is meshed with the rack (403), and a mounting hole for the rotating rod (405) to penetrate is formed in the gear (404).

6. A liftable loading dock according to claim 1, wherein: the inside through-hole that supplies bull stick (405) to run through of movable block (401), gag lever post (504) joint is in the outside of gear (404).

7. A liftable loading dock according to claim 1, wherein: the limiting rod (504) moves linearly up and down in the sliding hole (503), and the balancing weight (502) moves circularly by taking the limiting rod (504) as the center of a circle.