CN220766258U

CN220766258U - Hoisting clamp

Info

Publication number: CN220766258U
Application number: CN202322658421.0U
Authority: CN
Inventors: 杨青松; 王广明; 马玉秀; 田晓哲; 尹晓江
Original assignee: Harbin Zhihui Prefabricated Machinery Technology Co ltd
Current assignee: Harbin Zhihui Prefabricated Machinery Technology Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-04-12
Anticipated expiration: 2033-09-28

Abstract

The utility model provides a hoisting clamp, and belongs to the field of hoisting machinery. The problem that the clamping reliability is poor due to the fact that independent driving parts are needed in the small clamp clamping process and the cost is high is solved. The lifting device comprises an upper lifting frame, a lower lifting frame, clamping mechanisms and flexible connecting pieces, wherein the upper lifting frame and the lower lifting frame are of a frame structure, the lower lifting frame is uniformly provided with a plurality of clamping mechanisms along the length direction, each clamping mechanism is internally provided with two rotating clamping assemblies which are symmetrically distributed relative to the lower lifting frame on the left side and the right side, the middle part of each rotating clamping assembly is rotationally connected with the lower lifting frame, and the upper end of each rotating clamping assembly is connected with the upper lifting frame through one flexible connecting piece; the rotating clamping assembly is pulled by each flexible connection to rotate inwards around the lower hanger to clamp the article located right below the lower hanger when the upper hanger is lifted. It is mainly used for hoisting.

Description

Hoisting clamp

Technical Field

The utility model belongs to the field of hoisting machinery, and particularly relates to a hoisting clamp.

Background

The horizontal method is a traditional method for producing cement prefabricated parts, has the advantages of simple process, convenient operation, low cost, small one-time investment and the like, and can be used for industrial production and on-site production. The production in any form involves the steps of demoulding, transporting, storing, loading and installing. This can be very time consuming and labor intensive if manually operated.

The large hoisting machinery is high in cost and not applicable, the small hoisting machinery adopts the traditional inner hoisting ropes for hoisting, and the small hoisting machinery needs to be manually moved and lifted for matching, so that the operation is troublesome, the efficiency is low, the speed is low and the safety is poor. In the using process of some clamps, the safety coefficient is low, and a separate clamping driving part is needed for clamping, so that the cost is high, and the reliability is poor.

Disclosure of Invention

In view of the above, the present utility model aims to provide a lifting clamp, so as to solve the problems of the small clamp that a separate driving component is required in the clamping process, the cost is high, and the clamping reliability is poor.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the lifting clamp comprises an upper lifting frame, a lower lifting frame, clamping mechanisms and flexible connecting pieces, wherein the upper lifting frame and the lower lifting frame are of a frame structure, the lower lifting frame is uniformly provided with a plurality of clamping mechanisms along the length direction, each clamping mechanism is internally provided with two rotating clamping assemblies which are symmetrically distributed on the left side and the right side relative to the lower lifting frame, the middle part of each rotating clamping assembly is rotationally connected with the lower lifting frame, and the upper end of each rotating clamping assembly is connected with the upper lifting frame through one flexible connecting piece; the rotating clamping assembly is pulled by each flexible connection to rotate inwards around the lower hanger to clamp the article located right below the lower hanger when the upper hanger is lifted.

Further, the length of the upper hanging frame is equal to that of the lower hanging frame, and the width of the upper hanging frame is smaller than that of the lower hanging frame.

Still further, go up gallows and include longeron, crossbeam and rings, the longeron is provided with three and is the article style of calligraphy and arranges, and the longeron upper end middle part that is located the top sets up rings, sets up multiunit mounting along longeron length direction, the mounting is used for connecting the finished article style of calligraphy frame with three longeron, the crossbeam is provided with two and symmetrical connection article style of calligraphy frame front and back both ends.

Furthermore, two tie bars which are arranged symmetrically left and right are arranged in each fixing piece, one end of each tie bar is connected with the longitudinal beam positioned at the uppermost side, and the other end of each tie bar is connected with the longitudinal beam positioned below the corresponding side slope.

Further, the lower hanger comprises two long sides and two short sides, and the same ends of the two long sides are connected through one short side.

Furthermore, the middle part of each rotary clamping assembly is rotationally connected to the short side of the corresponding position through a pin shaft.

Still further, the rotation clamping assembly comprises a clamping arm and a clamping block, the middle part of the clamping arm is connected with the pin shaft, the upper end of the clamping arm is connected with the flexible connecting piece, and the lower end of the clamping arm is connected with the clamping block.

Furthermore, each clamping block is used for clamping one end of the corresponding clamping block, and a buffer cushion block is arranged at one end of the clamping block.

Furthermore, the two ends of the flexible connecting piece in each straightening state are arranged in a coplanar manner with the clamping arms and the cross beams which are correspondingly connected.

Further, the flexible connecting piece is an iron chain or a steel wire rope.

Compared with the prior art, the utility model has the beneficial effects that:

1. the clamp is simple and reliable in structure, and the three longitudinal beams form a delta-shaped structure, so that the stability of the whole structure is improved;

2. in the hoisting process, the clamp arms are pulled to rotate around the pin shafts through the flexible connecting pieces along with the hoisting of the upper hanging frame, so that the clamp blocks at two sides move towards the middle, the clamping of articles is realized, no additional action or power is needed, the manpower and material resources are saved, and the one-time input cost is saved;

3. the clamp benefits from the clamping mode of the flexible connecting piece and the clamping arm, so that the clamping force on the article is tighter under the condition that the article is heavier or the article shakes, and a better clamping effect is achieved;

4. the clamp can clamp articles with different sizes through changing the sizes of the buffer cushion blocks, and has strong adaptability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic front view of a lifting fixture according to the present utility model;

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

fig. 3 is a schematic top view of a lifting fixture according to the present utility model.

An upper hanger 1; a lower hanger 2; a longitudinal beam 3; a lacing wire 4; a cross beam 5; a hanging ring 6; a long side 7; short side 8; a pin 9; a clip arm 10; a clamp block 11; a cushion block 12; an iron chain 13.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It should be noted that, in the case of no conflict, embodiments of the present utility model and features of the embodiments may be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

Referring to the drawings, the embodiment is described, the hoisting clamp comprises an upper hanging bracket 1, a lower hanging bracket 2, clamping mechanisms and flexible connecting pieces, wherein the upper hanging bracket 1 and the lower hanging bracket 2 are of a frame structure, the lower hanging bracket 2 is uniformly provided with a plurality of clamping mechanisms along the length direction, each clamping mechanism is internally provided with two rotating clamping assemblies which are symmetrically distributed on the left side and the right side relative to the lower hanging bracket 2, the middle part of each rotating clamping assembly is rotationally connected with the lower hanging bracket 2, and the upper end of each rotating clamping assembly is connected with the upper hanging bracket 1 through one flexible connecting piece; pulling the rotating clamping assembly by each flexible connection rotates the rotating clamping assembly inwardly about the lower hanger 2 when the upper hanger 1 is lifted to clamp an item directly below the lower hanger 2. In the process that the hanging bracket 1 is improved, the flexible connecting piece in a loose state can be tensioned gradually, then the rotary clamping assembly is pulled, the rotary clamping assembly can rotate, the clamping ends of the rotary clamping assembly rotate inwards, the clamping ends of the rotary clamping assemblies located on two sides of the same position move inwards to be close to the article, the middle article is clamped, and because the clamping type depends on gravity, when the gravity is large or shaking exists in the hanging process to enable the downward force to be increased, the clamping moment can be correspondingly increased, the effect of clamping more tightly is achieved, and therefore the safety factor in the hanging process is improved.

In this embodiment, the length of the upper hanger 1 is equal to the length of the lower hanger 2, and the width of the upper hanger 1 is smaller than the width of the lower hanger 2. Due to the arrangement mode of the width, the flexible connecting piece can be ensured to be clamped by rotating the clamping assembly inwards in the process that the upper hanging frame 1 is lifted in the tightening process, and the effectiveness and reliability of clamping are ensured.

In this embodiment, the upper hanger 1 includes a longitudinal beam 3, a cross beam 5 and a hanging ring 6, the longitudinal beam 3 is provided with three and is in a delta shape arrangement, the hanging ring 6 is arranged in the middle of the upper end of the uppermost longitudinal beam 3, multiple groups of fixing pieces are arranged along the length direction of the longitudinal beam 3, the fixing pieces are used for connecting the three longitudinal beams 3 with a finished delta-shaped frame, and the cross beam 5 is provided with two front ends and rear ends which are symmetrically connected with the delta-shaped frame. The three longitudinal beams 3 are connected through the fixing pieces to form a finished-product-shaped frame, so that the overall structural strength can be enhanced, and the hoisting safety is ensured. By the arrangement of the suspension ring 6, a point of application for the lifting hook can be provided.

In this embodiment, two tie bars 4 are disposed symmetrically in each fixing member, one end of each tie bar 4 is connected to the uppermost longitudinal beam 3, and the other end is connected to the longitudinal beam 3 obliquely below the corresponding side. The connecting strength of the three longitudinal beams 3 can be improved through the lacing wires 4 which are arranged in a bilateral symmetry mode, so that the stability and the reliability of connection are improved, and the structural strength is high.

In this embodiment, the lower hanger 2 includes two long sides 7 and two short sides 8, and the same ends of the two long sides 7 are connected by one short side 8. The frame structure is formed by the two long sides 7 and the two short sides 8, so that the stability of the integral hoisting process is improved, and meanwhile, the installation position is provided for the rotary clamping assembly, so that the clamping function is realized conveniently.

In this embodiment, the middle part of each rotary clamping assembly is rotatably connected to the short side 8 at a corresponding position through a pin 9.

In this embodiment, the rotary clamping assembly includes a clamping arm 10 and a clamping block 11, the middle part of the clamping arm 10 is connected with the pin shaft 9, the upper end of the clamping arm 10 is connected with the flexible connecting piece, and the lower end of the clamping arm 10 is connected with the clamping block 11.

In this embodiment, each clamping block 11 is used for clamping one end provided with a buffer pad 12. The buffer cushion block 12 is made of a material with larger friction force, such as a hard rubber cushion and the like, so that the friction force is increased, and the stability and reliability of clamping and lifting can be improved.

In this embodiment, the two ends of the flexible connection unit in each straightened state are arranged coplanar with the clip arms 10 and the cross beam 5 which are correspondingly connected. The generation of tangential moment between the flexible connection unit and the arm 10 can be avoided, thereby prolonging the service life of the flexible connection unit and the arm 10.

In this embodiment, the flexible connection means is an iron chain 13 or a steel wire rope.

When the lifting device is used, the lifting device is connected with the lifting ring 6, an object to be lifted is placed under the lower lifting frame 2, a proper buffer cushion block 12 is selected to be mounted on the clamping block 11, and then the lifting ring 6 is lifted upwards through the lifting device. In the lifting process, the upper hanging frame 1 continuously moves upwards to gradually tighten the iron chain 13 in a loose state, and the clamping arms 10 are driven to rotate around the pin shafts 9 in the tightening process, so that the clamping blocks 11 of every two clamping arms 10 which are oppositely arranged relatively move, and an article in the middle is clamped. Because the clamping mode relying on gravity is adopted, the heavier and the larger the clamping strength is when shaking is achieved, so that the clamping stability and reliability are improved.

The embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The examples are not intended to be exhaustive or to limit the utility model to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model.

Claims

1. A hoisting clamp, characterized in that: the lifting device comprises an upper lifting frame (1), a lower lifting frame (2), clamping mechanisms and flexible connecting pieces, wherein the upper lifting frame (1) and the lower lifting frame (2) are of a frame structure, the lower lifting frame (2) is uniformly provided with a plurality of clamping mechanisms along the length direction, each clamping mechanism is internally provided with two rotating clamping assemblies which are symmetrically distributed on the left side and the right side relative to the lower lifting frame (2), the middle part of each rotating clamping assembly is rotationally connected with the lower lifting frame (2), and the upper end of each rotating clamping assembly is connected with the upper lifting frame (1) through one flexible connecting piece; when the upper hanging bracket (1) is lifted, the rotating clamping assembly is pulled by each flexible connecting piece to rotate inwards around the lower hanging bracket (2) so as to clamp the object positioned right below the lower hanging bracket (2).

2. A lifting clamp according to claim 1, wherein: the length of the upper hanging frame (1) is equal to that of the lower hanging frame (2), and the width of the upper hanging frame (1) is smaller than that of the lower hanging frame (2).

3. A lifting clamp according to claim 1, wherein: the upper hanging frame (1) comprises longitudinal beams (3), cross beams (5) and hanging rings (6), wherein the longitudinal beams (3) are arranged in a delta shape, the hanging rings (6) are arranged in the middle of the upper end of the uppermost longitudinal beam (3), multiple groups of fixing pieces are arranged along the length direction of the longitudinal beams (3), the fixing pieces are used for connecting the three longitudinal beams (3) to a finished-product-shaped frame, and the cross beams (5) are arranged at the front end and the rear end of the two delta-shaped frames in a symmetrical connection mode.

4. A lifting clamp according to claim 3, wherein: two tie bars (4) which are symmetrically arranged left and right are arranged in each fixing piece, one end of each tie bar (4) is connected with the longitudinal beam (3) positioned at the uppermost part, and the other end of each tie bar is connected with the longitudinal beam (3) which is obliquely arranged below the corresponding side.

5. The lifting clamp according to claim 4, wherein: the lower hanging bracket (2) comprises two long sides (7) and two short sides (8), and the same ends of the two long sides (7) are connected through the short side (8).

6. A lifting clamp according to claim 5, wherein: the middle part of each rotary clamping assembly is rotationally connected to a short side (8) at a corresponding position through a pin shaft (9).

7. The lifting clamp according to claim 6, wherein: the rotary clamping assembly comprises a clamping arm (10) and a clamping block (11), the middle part of the clamping arm (10) is connected with the pin shaft (9), the upper end of the clamping arm (10) is connected with the flexible connecting piece, and the lower end of the clamping arm (10) is connected with the clamping block (11).

8. The lifting clamp according to claim 7, wherein: each clamping block (11) is used for clamping one end of the corresponding support, and a buffer cushion block (12) is arranged at one end of the corresponding support.

9. The lifting clamp according to claim 7, wherein: the two ends of the flexible connecting piece in each straightening state are arranged in a coplanar manner with the clamping arm (10) and the cross beam (5) which are correspondingly connected.

10. A lifting clamp according to any one of claims 1-9, characterized in that: the flexible connecting piece is an iron chain (13) or a steel wire rope.