Stone hoisting device

Abstract

The utility model provides a stone lifting device which comprises two lifting rods, the two lifting rods are crossed and hinged through a connecting piece, and clamping blocks are arranged on the sides, close to the hinged point, of the two lifting rods. The connecting piece comprises two fixing rings and a bolt, the two fixing rings are installed on the two lifting rods respectively, the bolt penetrates through the two fixing rings, and the two ends of the bolt are in threaded connection with limiting nuts; a plurality of fixing rings are evenly distributed on the two lifting rods in the length direction of the lifting rods, and the fixing rings on the different lifting rods are symmetrically arranged in pairs. The stone plate lifting device solves the problem that in the prior art, a device cannot adapt to stone plates of different sizes, is simple in structure and convenient to install and use, can adjust the distance between the two clamping blocks on the lifting rod by using different fixing rings as hinging sites, and has high practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of stone transportation, in particular to a stone lifting device. Background Art

[0002] Stone is mainly used as a building decoration material, among which natural stone is mainly cut from rough blocks, arranged in long strips on shelves for stacking, and arranged on the ground in sequence during processing. The commonly used transportation method is manual transportation. The stone is heavy, which causes great safety hazards to workers during the transportation process and slows the construction speed.

[0003] A Chinese patent with application number CN202121896884.5 discloses a curbstone handling fixture, including a clamping frame, a lifting rod, and a rotating shaft; the rotating shaft includes an inner shaft and two hollow tubes sleeved on the inner shaft; the clamping frame includes a first clamping frame and a second clamping frame, the first clamping frame is connected to one of the hollow tubes, the second clamping frame is connected to the other hollow tube, and the two clamping frames are rotationally symmetrical structures relative to the inner shaft, and the two side walls opposite to each other at the lower part of the first clamping frame and the second clamping frame are clamping surfaces; the lifting rod includes a first lifting rod and a second lifting rod, the first lifting rod and the first clamping frame, and the second lifting rod and the second clamping frame are located in a corresponding position up and down, the bottom of the first lifting rod is connected to the top of the second clamping frame, and the bottom of the second lifting rod is connected to the top of the first clamping frame.

[0004] The above scheme achieves the purpose of transportation by lifting the lifting rod to make the clamping frame rotate and clamp the curbstone with the help of the rotating shaft. During this process, the operator needs to place the stone vertically and then clamp the stone. However, during transportation, stone slabs of different sizes may need to be transported, and the distance between the two holding frames needs to be adjusted to achieve this. In the above scheme, the positions of the two holding frames are fixed, which cannot adapt to stone slabs of different sizes and has certain limitations. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a stone lifting device, which solves the problem in the prior art that the device cannot adapt to stone slabs of different sizes.

[0006] In order to solve the above problems, the utility model provides the following solutions:

[0007] A stone lifting device, comprising:

[0008] A lifting rod, wherein two lifting rods are provided, the two lifting rods are crossed and hingedly connected through a connecting piece, and a clamping block is provided on one side of the two lifting rods close to the hinge point;

[0009] The connecting piece includes two fixing rings and bolts. The two fixing rings are respectively installed on the two lifting rods. The bolts pass through the two fixing rings and the two ends of the bolts are threadedly connected to the limiting nuts.

[0010] The two lifting rods are both arranged with a plurality of evenly distributed fixing rings along the length direction thereof, and the fixing rings on different lifting rods are arranged symmetrically in pairs.

[0011] The technical principle of the utility model is:

[0012] When in use, the stone is placed flat on the ground, and the two clamping blocks are respectively against the two ends of the width of the stone;

[0013] Select the hinge points according to the size of the stone to better handle the stone slabs.

[0014] The bolt passes through two symmetrically arranged and selected fixing rings on different lifting rods to connect the two lifting rods, and the limiting nut limits the bolt; thus, the two lifting rods can still rotate relatively.

[0015] Two operators stand on both sides of the stone and lift the lifting rod upwards with their hands. The end of the lifting rod away from the clamping block is the power arm. The two lifting rods drive the two clamping blocks to rotate to press the stone slab, and at the same time lift the stone slab for transportation.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. By intersecting two lifting rods and using the intersection as a rotating fulcrum, a labor-saving lever is formed; the transportation burden of the operator is reduced and the transportation efficiency of the operator is improved.

[0018] 2. The device has a simple structure and is easy to install and use. Different fixing rings can be used as hinge points to adjust the distance between the two clamping blocks on the lifting rod, which has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0020] Figure 2 It is a top view of an embodiment of the utility model.

[0021] In the above drawings:

[0022] Lifting rod 1, clamping block 2, fixing ring 3, bolt 4, limiting nut 5, anti-skid elastic pad 6, anti-skid handle 7. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a stone lifting device, comprising:

[0025] A lifting rod 1, wherein two lifting rods 1 are provided, the two lifting rods 1 are crossed and hingedly connected through a connecting piece, and a clamping block 2 is provided on one side of the two lifting rods 1 close to the hinge point;

[0026] The connecting member comprises two fixing rings 3 and bolts 4. The two fixing rings 3 are respectively mounted on the two lifting rods 1. The bolts 4 pass through the two fixing rings 3 and the two ends of the bolts 4 are threadedly connected to the limiting nuts 5.

[0027] The two lifting masts 1 are both arranged with a plurality of evenly distributed fixing rings 3 along the length direction thereof, and the fixing rings 3 on different lifting masts 1 are arranged symmetrically in pairs.

[0028] In the prior art, operators need to place the stone vertically and then clamp it. However, during transportation, stone slabs of different sizes may need to be transported, and the distance between the two supporting frames needs to be adjusted. In the above solution, the positions of the two supporting frames are fixed, which cannot adapt to stone slabs of different sizes and has certain limitations.

[0029] In order to solve the above problems, in this embodiment, two lifting rods 1 are intersected and hinged, and multiple fixing rings 3 are provided on the two lifting rods 1 to form multiple hinge points to accommodate stone slabs of different sizes.

[0030] Specifically, the working process of this embodiment is as follows:

[0031] Before transportation, the lifting device needs to be clamped and tested to avoid safety accidents.

[0032] Specifically, during the test clamping, use a lifting device to lift the stone 30 cm from the ground. After the lifting device is stable, check the connection between each section and the weld status of the angle iron components. At the same time, check whether the two lifting rods 1 can rotate normally. If there is no abnormality, use 4 groups of stones of different specifications for lifting. After 5 tests, check the conditions of the above-mentioned parts again. If there are no cracks, abnormal noises, etc., it can be regarded as qualified.

[0033] When in use, the stone is placed flat on the ground, and the two clamping blocks 2 are respectively against the two ends of the width of the stone;

[0034] Select the hinge points according to the size of the stone to better handle the stone slabs.

[0035] The bolt 4 passes through two symmetrically arranged and selected fixing rings 3 on different lifting poles 1 to connect the two lifting poles 1, and the limiting nut 5 limits the bolt 4; thus, the two lifting poles 1 can still rotate relatively.

[0036] Two operators stand on both sides of the stone respectively and lift the lifting rod 1 upwards by hand. The end of the lifting rod 1 away from the clamping block 2 is a power arm. The two lifting rods 1 drive the two clamping blocks 2 to rotate to press the stone slab, and at the same time lift the stone slab for transportation.

[0037] Heavier slabs can be clamped using at least two lifting devices, which are arranged along the length of the slab. Four operators work together to ensure stable clamping of the slab.

[0038] In addition, the two lifting rods 1 are made of galvanized steel pipes, the connection between the lifting rod 1 and the corresponding fixing ring 3 is spot welding, and the connection between the lifting rod 1 and the clamping block 2 is full welding. The weld grade is level two, the weld should be full and smooth, and should not have appearance defects. The flux strength should be compatible with the steel strength.

[0039] The two clamping blocks 2 are made of finished angle irons, and the two fixing rings 3 are nuts of the same type to ensure that the two fixing rings 3 are aligned, and their inner diameters are larger than the diameters of the high-strength bolts 4. The two fixing rings 3 are finished nuts; the bolts 4 are finished hexagonal head bolts 4, and the nuts 8 are finished M16 nuts. The fixing rings 3 and the clamping blocks 2 on the same lifting rod 1 face in opposite directions for ease of installation and use.

[0040] The length of the lifting rod 1 should ensure that the construction workers can stand on the construction site and have enough operating space, which is generally 2 meters. The fixing ring 3 is about 25 centimeters away from the end of the lifting rod 1 connected to the clamping block 2.

[0041] After welding is completed, the ends of the lifting rod 1 are placed in parallel, and then the bolts 4 are inserted into the two fixing rings 3, and the position is fixed by the limit nut 5.

[0042] The clamping block 2 of the lifting device is L-shaped and has an obtuse angle; its angle of curvature must be reasonable, and the width must ensure that the force-bearing area is sufficient to fit the stone, ensuring that the lifting device can fit the stone as completely as possible without causing the edge of the stone to collapse.

[0043] In addition, in this embodiment, in order to always ensure that the two lifting rods 1 are labor-saving levers, the fixing ring 3 is always close to one end of the clamping plate; therefore, there are at most three fixing rings 3 on each lifting rod 1, and the fixing rings 3 on different lifting rods 1 are symmetrically distributed in pairs. The hinge position is determined according to the position of the fixing ring 3. In addition, different hinge positions are used to adapt to the lifting of stone slabs of different sizes.

[0044] In terms of usage, compared with the prior art, the present device clamps the width of the stone, while the comparative document clamps the thickness of the stone. When the stress on the stone is the same, the present device is longer in the force direction and is less likely to deform and damage the stone. In addition, the present device adjusts the distance between the two clamping blocks 2 through different hinge points to adapt to stone slabs of different sizes.

[0045] Furthermore, a non-slip elastic pad 6 is provided on one side of the two clamping blocks 2 for contacting with the stone.

[0046] By setting the anti-slip elastic pad 6, the friction between the clamping block 2 and the stone slab is increased, reducing the risk of the stone slab sliding due to its own gravity. In addition, the elastic pad protects the stone slab to prevent the clamping block 2 from making hard contact with the stone slab and causing damage to the stone slab.

[0047] Furthermore, an anti-slip handle 7 is provided at one end of the two lifting rods 1 away from the clamping block 2 .

[0048] By providing the anti-skid handle 7, the friction between the operator and the lifting rod 1 is increased, thereby preventing accidents caused by the operator's hand slipping.

[0049] The specific working process of the utility model is:

[0050] When in use, the stone is placed flat on the ground, and the two clamping blocks 2 are respectively against the two ends of the width of the stone;

[0051] Select the hinge points according to the size of the stone to better handle the stone slabs.

[0052] The bolt 4 passes through two symmetrically arranged and selected fixing rings 3 on different lifting poles 1 to connect the two lifting poles 1, and the limiting nut 5 limits the bolt 4; thus, the two lifting poles 1 can still rotate relatively.

[0053] Two operators stand on both sides of the stone respectively and lift the lifting rod 1 upwards by hand. The end of the lifting rod 1 away from the clamping block 2 is a power arm. The two lifting rods 1 drive the two clamping blocks 2 to rotate to press the stone slab, and at the same time lift the stone slab for transportation.

[0054] Heavier slabs can be clamped using at least two lifting devices, which are arranged along the length of the slab. Four operators work together to ensure stable clamping of the slab.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A stone lifting device, It is characterized in that include: A lifting rod (1), wherein two lifting rods (1) are provided, the two lifting rods (1) are crossed and hingedly connected via a connecting piece, and a clamping block (2) is provided on one side of the two lifting rods (1) close to the hinge point; The connecting member comprises two fixing rings (3) and a bolt (4), wherein the two fixing rings (3) are respectively mounted on the two lifting rods (1), and the bolt (4) passes through the two fixing rings (3) and has two ends threadedly connected to limit nuts (5); Both lifting rods (1) are provided with a plurality of evenly distributed fixing rings (3) along their length direction, and the fixing rings (3) on different lifting rods (1) are symmetrically arranged in pairs.

2. The stone lifting device according to claim 1, It is characterized in that The two fixing rings (3) are hexagonal nuts, and the bolts (4) are hexagonal bolts (4).

3. The stone lifting device according to claim 1, It is characterized in that The fixing ring (3) and the clamping block (2) on the same lifting rod (1) are oriented in opposite directions.

4. The stone lifting device according to claim 1, It is characterized in that The two clamping blocks (2) are made of angle iron, and the two lifting rods (1) are made of galvanized steel pipes.

5. The stone lifting device according to claim 1, It is characterized in that The two clamping blocks (2) are provided with anti-skid elastic pads (6) on one side thereof which is used to abut against the stone.

6. The stone lifting device according to claim 1, It is characterized in that An anti-slip handle (7) is provided at one end of the two lifting rods (1) away from the clamping block (2).

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