CN216403580U - Brick lifting appliance - Google Patents

Abstract

The utility model discloses a brick lifting appliance, which comprises an upper connecting rod I, an upper connecting rod II, a lifting rod, a lower lever I and a lower lever II, wherein the upper connecting rod I and the upper connecting rod II are symmetrically arranged at two sides of the lifting rod, and the upper ends of the upper connecting rod I and the upper connecting rod II are hinged to the lifting rod; the middle parts of the first lower lever and the second lower lever are hinged through a hinged shaft, the upper ends of the first lower lever and the second lower lever are respectively hinged to the lower ends of the first upper connecting rod and the second upper connecting rod, and clamping blocks used for clamping products are arranged at the lower end of the first lower lever and the lower end of the second lower lever; the articulated shaft is connected with the upper limiting piece, the upper end of the suspender is provided with a hanging ring, and the lower end of the suspender is provided with a lifting hook; when the hanger is in an unfolded state, the lifting hook is hung on the hinged shaft. The lifting hook is connected with the hinged shaft before clamping the brick, so that the brick is in an open state, the clamping block can be clamped quickly, and automatic clamping can be realized only by separating the lifting hook from the hinged shaft during lifting, so that the lifting appliance can clamp a product quickly and efficiently, and the construction efficiency is improved.

Description

Brick lifting appliance

Technical Field

The utility model relates to a brick lifting appliance, and belongs to the technical field of engineering lifting appliances.

Background

In the road construction process, need carry out the handling to large-scale fragment of brick, the parallelogram hoist of commonly using among the prior art carries out the handling to large-scale fragment of brick, and when the upper end of this kind of hoist was upwards pulled, because lever principle, two clamp splice of lower extreme will inwards shrink, cliies the object upward movement then. However, this type of spreader has a significant disadvantage: when not handling the product, because the effect of hoist dead weight, two clamp blocks of lower extreme are in the clamp state promptly, need the manual work to open the clamp block just can the centre gripping fragment of brick, and this has just reduced the efficiency of construction.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims to provide a brick lifting appliance, which solves the technical problem that the brick lifting appliance in the prior art is low in product clamping efficiency.

In order to achieve the above object, the present invention adopts the following technical solutions:

a brick lifting appliance comprises an upper connecting rod I, an upper connecting rod II, a lifting rod, a lower lever I and a lower lever II, wherein the upper connecting rod I and the upper connecting rod II are symmetrically arranged on two sides of the lifting rod, and the upper ends of the upper connecting rod I and the upper connecting rod II are hinged to the lifting rod;

the middle parts of the first lower lever and the second lower lever are hinged through a hinged shaft, the upper ends of the first lower lever and the second lower lever are respectively hinged to the lower ends of the first upper connecting rod and the second upper connecting rod, and clamping blocks used for clamping products are arranged at the lower end of the first lower lever and the lower end of the second lower lever;

the articulated shaft is connected with the upper limiting piece, the upper end of the suspender is provided with a hanging ring, and the lower end of the suspender is provided with a lifting hook;

when the hanger is in an unfolded state, the lifting hook is hung on the hinged shaft.

Preferably, in the brick lifting appliance, the hinged shaft of the first upper connecting rod and the first lower lever and the hinged shaft of the second upper connecting rod and the second lower lever are respectively provided with a handle for lifting upwards.

Preferably, the brick lifting appliance is provided with limiting blocks, when the handle is in an unfolding state, one limiting block is connected with the first lower lever, and the other limiting block is connected with the second lower lever.

Preferably, in the brick spreader described above, when the handle is in the extended position, the handle is co-linear with the first or second lower lever to which it is connected.

Preferably, the upper limiting piece of the brick lifting appliance is provided with a plurality of vertically arranged mounting holes, and the hinge shaft is inserted into one mounting hole.

Preferably, in the brick lifting appliance, the clamping surface of the clamping block is further provided with an anti-skid protrusion.

Preferably, the suspender of the brick lifting appliance is further provided with a limiting rod, and the limiting rod is used for limiting the lifting hook to be located between the first upper connecting rod and the second upper connecting rod.

Preferably, one end of the hinge shaft is provided with a check ring, the other end of the hinge shaft is provided with a through hole, and the through hole is connected with a split pin.

Preferably, in the brick lifting appliance, the suspension rod is further provided with a suspension rod driving hole.

The utility model achieves the following beneficial effects:

compared with the prior art, the lifting hook can be in an open state through connection of the lifting hook and the hinge shaft before clamping bricks, so that the clamping blocks can be conveniently placed on the side parts of the bricks, when the lifting hook is lifted, automatic clamping can be realized only by separating the lifting hook from the hinge shaft, a lifting appliance can quickly and efficiently clamp products, the construction efficiency is improved, and the lifting of the bricks can be completed only by operating lifting equipment by one person for experienced operators.

The upper limiting piece can ensure that the clamping block is in a correct clamping position, and can prevent the middle of a plurality of layers of bricks from bending upwards when a plurality of bricks are clamped, so that the reliability and the efficiency of hoisting are improved.

The utility model can clamp cylindrical products besides square objects.

Drawings

FIG. 1 is an isometric view of the overall construction of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a front view of the overall structure of the present invention;

FIG. 4 is a state diagram of the present invention for lifting cylindrical products;

the meaning of the reference symbols in the figures: 1-an upper connecting rod I; 2-upper connecting rod two; 3-a suspender; 4-lower lever one; 5-a second lower lever; 6-a handle; 7-upper limiting member; 8-clamping blocks; 31-a lifting ring; 32-a hook; 33-a limiting rod; 34-boom drive hole; 61-a limiting block; 71-articulated shaft; 72-mounting holes; 73-connecting hole; 81-stud.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 4: the embodiment discloses a brick lifting appliance, which comprises an upper connecting rod I1, an upper connecting rod II 2, a lifting rod 3, a lower lever I4 and a lower lever II 5, wherein the upper connecting rod I1 and the upper connecting rod II 2 are symmetrically arranged on two sides of the lifting rod 3, and the upper ends of the upper connecting rod I1 and the upper connecting rod II 2 are hinged to the lifting rod 3.

The middle of the lower lever I4 and the lower lever II 5 is hinged through a hinge shaft 71, the upper ends of the lower lever I4 and the lower lever II 5 are hinged to the lower ends of the upper connecting rod I1 and the upper connecting rod II 2 respectively, and clamping blocks 8 used for clamping products are arranged at the lower end of the lower lever I4 and the lower end of the lower lever II 5 respectively.

The articulated shaft 71 is connected with the upper limiting piece 7, the upper end of the suspender 3 is provided with a hanging ring 31, and the lower end is provided with a lifting hook 32; when the spreader is in the spread state, the hook 32 is hung on the hinge shaft 71. The unfolded state means that the distance between the two clamping blocks 8 is adjusted to be larger, and in this state, the two clamping blocks 8 can be placed on both sides of the product.

And the hinged shaft of the upper connecting rod I1 and the lower lever I4 and the hinged shaft of the upper connecting rod II 2 and the lower lever II 5 are respectively provided with a handle 6 used for being lifted upwards. When handle 6 only receives the action of gravity, be vertical free state, in order to make things convenient for upwards to lift up whole hoist through handle 6, this embodiment need set up the limit structure who is used for avoiding handle 6 to overturn upwards, therefore handle 6 of this embodiment still is equipped with stopper 61, and when handle 6 is in the expansion state, one of them stopper 61 is connected lower lever one 4, another stopper 61 is connected lower lever two 5 to when handle 6 is in the expansion state, handle 6 and the lower lever one 4 or the lower lever two 5 collineation of being connected are convenient for like this upwards lift up.

As shown in fig. 3, the rectangular grid lines in fig. 3 indicate the bricks to be hoisted, the upper limiting member 7 is used for ensuring that the clamping blocks 8 can be normally clamped to the side parts of the bricks, and in the process of lifting the hanger which is not clamped, the lower levers i 4 and ii 5 can be rotated normally in the clamping direction by taking the hinge shaft 71 as the axis, so that the bricks can be clamped. The hinge shaft 71 is provided at one end thereof with a stopper and at the other end thereof with a through hole, and the hinge shaft 71 is restricted by inserting a cotter pin into the through hole.

In order to adjust the height of the upper limiting member 7 relative to the lower levers one 4 and two 5, the upper limiting member 7 is provided with a plurality of mounting holes 72 arranged vertically, and the hinge shaft 71 adjusts the height of the upper limiting member 7 relative to the lower levers one 4 and two 5 by being inserted into one of the mounting holes 72.

In order to improve the clamping reliability of the clamping block 8, the clamping surface of the clamping block 8 of the present embodiment is further provided with a skidproof protrusion 81.

When the hoist is not used, in order to ensure that the hanging ring 31 is always positioned at the uppermost end, the suspension rod 3 of the embodiment is further provided with a limiting rod 33, and when the suspension rod 3 rotates to a certain angle, the limiting rod 33 can be blocked by the first upper connecting rod 1 or the second upper connecting rod 2, so that the hook 32 can be limited to be positioned between the first upper connecting rod 1 and the second upper connecting rod 2.

During the use, articulate rings 31 through hoisting equipment, when the hoist was pulled up from ground, lifting hook 32 can be hung to articulated shaft 71 (under some circumstances, if lifting hook 32 can't hang into articulated shaft 71, also can carry out manual intervention and articulate), just so can guarantee that two clamp splice 8 are in the open mode, when placing the hoist directly over the fragment of brick, two clamp splice 8 just in time can the centre gripping the side of fragment of brick. Then the lifting hook 32 is separated from the hinge shaft 71, the bricks can be clamped by continuously lifting, in practical application, the lower lever I4 and the lower lever II 5 can be slightly lifted to be slightly higher than the upper surface of the bricks, and then the lifting hook 32 can be quickly separated from the hinge shaft 71 by pulling the lower end of the suspension rod 3 through the rope. To facilitate the above-described rope fixing, a boom driving hole 34 may be provided below the boom 3. When the bricks are lowered and the spreader is lowered, the hook 32 can be hooked by the hinge shaft 71, and the entire spreader is lifted upward with the clamp blocks 8 in the opened state.

Compared with the prior art, this embodiment can be before the centre gripping fragment of brick, through the connection of lifting hook 32 and articulated shaft 71, makes it be in the open mode, and the lateral part of fragment of brick is placed to the clamp splice 8 of being convenient for, when lifting by crane, only needs to realize self-holding with lifting hook 32 and articulated shaft 71 separation, can make the hoist centre gripping product fast and high-efficiently like this, promotes the efficiency of construction to experienced operating personnel, only need operate hoisting equipment alone can accomplish the handling of fragment of brick.

The last spacing piece 7 of this embodiment can guarantee that clamp splice 8 is in correct clamping position to when a plurality of fragment of brick of centre gripping, can avoid the middle kickup of multilayer fragment of brick, promote the reliability and the efficiency of hoist and mount.

In addition to holding the square objects, the present embodiment can also hold cylindrical products, as shown in fig. 4, and the circular dotted line in fig. 4 represents a cylindrical product.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A brick lifting appliance is characterized by comprising an upper connecting rod I (1), an upper connecting rod II (2), a lifting rod (3), a lower lever I (4) and a lower lever II (5), wherein the upper connecting rod I (1) and the upper connecting rod II (2) are symmetrically arranged at two sides of the lifting rod (3), and the upper ends of the upper connecting rod I (1) and the upper connecting rod II (2) are hinged to the lifting rod (3);

the middle parts of the first lower lever (4) and the second lower lever (5) are hinged through a hinge shaft (71), the upper ends of the first lower lever (4) and the second lower lever (5) are respectively hinged to the lower ends of the first upper connecting rod (1) and the second upper connecting rod (2), and clamping blocks (8) used for clamping products are arranged at the lower end of the first lower lever (4) and the lower end of the second lower lever (5);

the articulated shaft (71) is connected with the upper limiting piece (7), the upper end of the suspender (3) is provided with a hanging ring (31), and the lower end of the suspender is provided with a lifting hook (32);

when the hanger is in an unfolded state, the hook (32) is hung on the hinge shaft (71).

2. A brick spreader according to claim 1, wherein the hinge axis of the upper link (1) and the lower lever (4) and the hinge axis of the upper link (2) and the lower lever (5) are provided with handles (6) for lifting upward.

3. A brick spreader according to claim 2, wherein the handle (6) is provided with stops (61), one of the stops (61) being connected to the first lower lever (4) and the other stop (61) being connected to the second lower lever (5) when the handle (6) is in the extended position.

4. A brick spreader according to claim 3, wherein the handle (6) is co-linear with the connected first (4) or second (5) lower lever when the handle (6) is in the deployed state.

5. A brick spreader according to claim 1, wherein the upper retainer (7) is provided with a plurality of mounting holes (72) arranged vertically, and the hinge shaft (71) is inserted into a certain mounting hole (72).

6. A brick spreader according to claim 1, wherein the clamping surfaces of the clamping blocks (8) are further provided with anti-slip projections (81).

7. A brick spreader according to claim 1, wherein the suspension bar (3) is further provided with a limiting rod (33), and the limiting rod (33) is used for limiting the position of the lifting hook (32) between the first upper connecting rod (1) and the second upper connecting rod (2).

8. A brick spreader according to claim 1, wherein the hinge shaft (71) is provided with a collar at one end and a through hole at the other end, said through hole being connected to a cotter pin.

9. A brick spreader according to claim 1, wherein the suspension bar (3) is further provided with bar drive holes (34).

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