Lifting device for concrete blocks

Abstract

The utility model relates to the field of lifting of construction sites, and discloses a lifting device for concrete blocks, which comprises a lifting lug and a lifting cage, one side of the lifting cage is rotatably connected with a door and window, one side of the door and window is fixedly connected with a gate post, the outer side of the top of the lifting cage is fixedly connected with a clamping groove, the bottom of the lifting lug is provided with a triangular lifting frame, and the triangular lifting frame is fixedly connected with the gate post. Steel wire ropes are installed at the two ends of the triangular hanging bracket, a telescopic rod is fixedly connected to the center of the bottom of the triangular hanging bracket, clamp stress rods are installed on the inner sides of the steel wire ropes, the tops of the steel wire ropes are installed on the tops of the triangular brackets, and telescopic rod barrels are slidably connected to the outer walls of the telescopic rods. Steel wire rope stress frames are fixedly connected to the two sides of the upper portion of the telescopic rod barrel, a supporting rod is selectively installed in the middle of the telescopic rod barrel, the bottom of a steel wire rope is installed at the top of the steel wire rope stress frames, clamp splicing plates are fixedly connected to the two ends of a clamp stress rod, and arm force rods are fixedly installed at the bottoms of the clamp splicing plates. The interiors of the clamping grooves are connected to the surfaces of the arm strength rods in an engaged mode. According to the utility model, two modules, namely a clamp and a movable pedal, are added. The clamp can stably lift the cage, and the design of a balancing device is safer. The movable pedal can save labor in the process of loading and unloading the concrete blocks.

Description

Technical Field

[0001] The utility model relates to the field of hoisting at construction sites, in particular to a hoisting device for concrete blocks. Background Art

[0002] The use of lifting devices for concrete blocks is necessary in construction projects for multiple reasons, mainly for the following reasons: Improve construction efficiency: The lifting device for concrete blocks can greatly speed up the handling of blocks. Compared with traditional manual handling, mechanized lifting devices can quickly and accurately lift blocks to designated locations, thereby significantly shortening the construction period. Reduce labor intensity: Manual handling of concrete blocks is not only inefficient, but also labor-intensive, which can easily lead to worker fatigue and injury. The use of lifting devices can greatly reduce the physical burden of workers, improve the working environment, and improve the comfort and safety of work. Ensure construction quality: The lifting device can accurately control the position and height of blocks, reduce errors caused by human factors, and thus ensure the stability and consistency of construction quality. Improve safety: Using professional lifting devices for block handling can reduce safety accidents caused by improper human operation or fatigue. These devices are usually equipped with safety devices and protective measures to ensure safety during construction.

[0003] After searching, the announcement number CN213976628U discloses a simple lifting device for aerated concrete blocks, including: a cage frame, the upper and lower ends of the cage frame are open, the upper end of the cage frame is located at the front and rear sides, and two lifting ears for lifting are welded and fixed at intervals, and the lower end of the cage frame is located at the front and rear sides, and two first through-holes are welded and fixed at intervals; a supporting steel pipe, there are two supporting steel pipes, and each supporting steel pipe is respectively penetrated in the two first through-holes on the front and rear sides. The tower crane or automobile crane lifts the cage frame through the four lifting ears, vertically inserts it into the stacked aerated blocks, and then passes the supporting steel pipe through the first through-hole and the through hole on the base of the aerated blocks, and then lifts it to the unloading platform, thereby realizing the rapid lifting of the aerated blocks, eliminating the process of secondary handling, and can be lifted whenever needed, which greatly saves manpower and material resources, and improves the efficiency of vertical transportation of materials. In addition, the cage has a simple structure, low cost, and is easy to use, and has strong promotion.

[0004] When setting the lifting lugs in the above application, four lifting lugs need to be passed through, and only supporting steel pipes are used for lifting, which is prone to uneven force, rollover, and safety accidents. When arriving at the destination during transportation, the concrete blocks need to be moved to different places, which is inconvenient to take out from the cage. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a lifting device for concrete blocks, aiming to improve the safety during the lifting process and the movable problem of the concrete blocks placed in the cage after the lifting.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a lifting device for concrete blocks, comprising a lifting ear and a lifting cage, one side of the lifting cage is rotatably connected with a door and window, one side of the door and window is fixedly connected with a door post, the top outer side of the lifting cage is fixedly connected with a clamping groove, the bottom of the lifting ear is installed with a triangular hanger, both ends of the triangular hanger are installed with a steel wire rope, the bottom center of the triangular hanger is fixedly connected with a retractable rod, the inner side of the steel wire rope is installed with a clamp force rod, the top of the steel wire rope is installed on the top of the triangular hanger, the outer wall of the retractable rod is slidably connected with a retractable rod cylinder, the upper two sides of the retractable rod cylinder are fixedly connected with the steel wire rope force frame, the middle part of the retractable rod cylinder is optionally installed with a support rod, the bottom of the steel wire rope is installed at the top of the steel wire rope force frame, the two ends of the clamp force rod are fixedly connected with a clamp splicing plate, the bottom of the clamp splicing plate is fixedly installed with an arm force rod, and the inner part of the clamping groove is meshed and connected to the surface of the arm force rod.

[0007] Preferably, a clamp support frame is fixedly installed at the bottom of the retractable rod tube, two clamps are fixedly connected to the middle of the clamp splicing plate, and the middle parts of the two clamps are installed at both ends of the clamp support frame.

[0008] Preferably, steel columns are fixedly connected around the inner bottom of the cage, and the steel columns intersect horizontally and vertically to form a fence of the cage.

[0009] Preferably, two parallel tracks are fixedly connected to the bottom of the cage, pulleys are slidably connected inside the tracks, and iron rods are rotatably connected to the inner circular holes of the two pulleys.

[0010] Preferably, a pedal is rotatably connected to the top of the iron rod, and one end of the pedal is fixedly connected to two pedal interfaces parallel to each other.

[0011] Preferably, four universal wheels are installed around the bottom of the cage bottom plate.

[0012] Preferably, a bolt B is fixedly connected to the middle of the door column, and a bolt A is fixedly connected above and below the bolt B when the door and window are closed, and a T-lock is installed at the center of the bolt A.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, a concrete block is placed on a pedal, and the pedal is used to send the concrete block into the cage through a track on the cage bottom plate, the doors and windows are closed, and a T-lock is inserted into the hollow position between the bolt A and the bolt B on the door post.

[0015] 2. In the utility model, after the concrete is put into the cage and the T-lock is inserted, the crane will hook the lifting eye and slowly move down while the retractable rod moves down, driving the wire rope to become soft, and the clamp splicing plate slowly opens. As the arm force bar slowly descends until it enters the clamp groove, and then the lifting eye is pulled upward, the retractable rod slowly rises, and the wire rope connected to the wire rope force frame drives the clamp force rod to move upward. At this time, the wire rope is stretched straight by the force, driving the clamp splicing plate, so that the arm force bar is clamped tighter, and the cage rises. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a lifting device for concrete blocks proposed in the utility model;

[0017] Figure 2 A three-dimensional diagram of a lifting device for lifting concrete blocks proposed in the utility model;

[0018] Figure 3 The present invention is a three-dimensional diagram of a hoisting cage of a hoisting device for concrete blocks proposed by the present invention.

[0019] Legend:

[0020] 1. Lifting ear; 2. Triangle hanger; 3. Wire rope; 4. Retractable rod; 5. Clamp force rod; 6. Clamp support rod; 7. Clamp plate; 8. Clamp splicing plate; 9. Arm lever; 10. Retractable rod tube; 11. Wire rope force frame; 12. Clamp groove; 13. Steel column; 14. Door bolt A; 15. Door bolt B; 16. Pedal interface; 17. Track; 18. Universal wheel; 19. Pedal; 20. Pulley; 21. Cage; 22. Iron rod; 23. Door post; 24. T-lock; 25. Door and window; 26. Support rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings of the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-Figure 3The utility model provides an embodiment: a lifting device for concrete blocks, including a lifting ear 1 and a cage 21, one side of the cage 21 is rotatably connected with a door and window 25, one side of the door and window 25 is fixedly connected with a door post 23, which can be used to set accessories on it to close the door and window, and the left and right clamping grooves 12 are fixedly connected to the outer side of the top of the cage 21 for use in conjunction with the clamp to maintain its stability, a triangular hanger 2 is installed at the bottom of the lifting ear 1, and steel wire ropes 3 are installed at both ends of the triangular hanger 2 to drive the steel wire rope during the rising process, and a retractable rod 4 is fixedly connected to the bottom center of the triangular hanger 2 to control the lifting height of the hanger, and a clamp force rod 5 is installed on the inner side of the steel wire rope 3 to drive the force rod in the upward process The top of the wire rope 3 is installed on the top of the triangular hanger 2, and the outer wall of the retractable rod 4 is slidably connected with the retractable rod tube 10, which can be fixed up and down to increase stability and maintain the up and down movement height. The upper two sides of the retractable rod tube 10 are fixedly connected to the wire rope force frame 11, and the middle part of the retractable rod tube 10 is optionally installed with a support rod 26. The bottom of the wire rope 3 is installed on the top of the wire rope force frame 11 to form another force point. The two ends of the clamp force rod 5 are fixedly connected with the clamp splicing plate 8, which can be brought together for rising. The bottom of the clamp splicing plate 8 is fixedly installed with an arm rod 9, and the internal meshing connection of the clamp groove 12 is connected to the surface of the arm rod 9, which can drive the cage 21 to rise when tightening during the rising process.

[0023] Reference Figure 2 A clamp support frame 6 is fixedly installed at the bottom of the retractable rod tube 10, and two clamp plates 7 are fixedly connected to the middle of the clamp splicing plate 8 to fix the support frame 6 and control the retraction and opening angles of the clamp. The middle parts of the two clamp plates 7 are installed at both ends of the clamp support frame 6.

[0024] Reference Figure 1 The inner bottom of the cage 21 is fixedly connected with steel columns 13 around it, and the steel columns 13 intersect horizontally and vertically to form a fence of the cage 21 to protect the concrete blocks from falling.

[0025] Reference Figure 3 Two parallel tracks 17 are fixedly connected to the bottom of the cage 21, and pulleys 20 are slidably connected inside the tracks 17. Iron rods 22 are rotatably connected to the inner circular holes of the two pulleys 20. During the loading and unloading process of concrete blocks, the concrete blocks can be transported with the help of the pulleys 20. The length of the track 17 is designed to prevent the fence from being damaged during transportation.

[0026] Reference Figure 3 The top of the iron rod 22 is rotatably connected with a pedal 19, and one end of the pedal 19 is fixedly connected to two pedal interfaces 16 parallel to each other, which can be bound here with ropes or other tools. The pedal 19 can be pulled out by pulling hard, avoiding the problem of small space in the cage 21 and inconvenient removal.

[0027] Reference Figure 3 Four universal wheels 18 are installed around the bottom of the bottom plate of the cage 21, so that the cage 21 can be lifted to the designated floor, but there is a certain distance to reach the working area, which can be pushed to the designated working area with the help of the universal wheels 18.

[0028] Reference Figure 1 A bolt B15 is fixedly connected to the middle of the door column 23. When the door and window 25 are closed, a bolt A14 is fixedly connected above and below the bolt B15. A T-lock 24 is installed at the center of the bolt A14, which is used to close and lock the door and window 25 when the concrete blocks are loaded and unloaded to prevent any residue from falling out of the cage 21.

[0029] Working principle: Place the concrete block on the pedal 19, and use the pedal 19 to send the concrete block into the cage through the track 17 on the bottom plate of the cage 21, close the doors and windows 25, and insert the T-lock 24 into the hollow position between the bolt A14 and the bolt B15 on the door column. After the concrete is put into the cage and the T-lock 24 is inserted, the crane will hook the lifting ear 1, and the retracting rod 4 will move down during the process of slowly moving down, driving the wire rope 3 to become soft, and the clamp splicing plate 8 will slowly open. As the arm force bar 9 slowly descends, it will enter the clamping groove 12. Then pull the lifting ear 1 upwards, the retracting rod 4 rises slowly, and the wire rope connected to the wire rope force frame 11 drives the clamp force rod 9 to move upward. At this time, the wire rope is stretched straight, driving the clamp splicing plate 8 to clamp the arm force bar 9 tighter, and the cage rises. After reaching the top, the cage can be pushed, and the universal wheel 18 at the bottom turns to reach the designated work location. After use, the pedal 19 is placed in the cage 21, and the doors and windows 25 are closed and the T-lock 24 is inserted, and the work is completed.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device for concrete blocks, comprising a lifting lug (1) and a lifting cage (21), characterized in that: One side of the cage (21) is rotatably connected to a door window (25), one side of the door window (25) is fixedly connected to a door post (23), the top outer side of the cage (21) is fixedly connected to a clamping groove (12), the bottom of the lifting ear (1) is installed with a triangular hanger (2), both ends of the triangular hanger (2) are installed with steel wire ropes (3), the bottom center of the triangular hanger (2) is fixedly connected to a retractable rod (4), the inner side of the steel wire rope (3) is installed with a clamp force rod (5), and the top of the steel wire rope (3) is installed on the top of the triangular hanger (2). The outer wall of the retractable rod (4) is slidably connected to a retractable rod tube (10), the upper two sides of the retractable rod tube (10) are fixedly connected to a wire rope force frame (11), the middle of the retractable rod tube (10) is optionally installed with a support rod (26), the bottom of the wire rope (3) is installed on the top of the wire rope force frame (11), the two ends of the clamp force rod (5) are fixedly connected to a clamp splicing plate (8), the bottom of the clamp splicing plate (8) is fixedly installed with an arm rod (9), and the inside of the clamp groove (12) is meshedly connected to the surface of the arm rod (9).

2. The lifting device for concrete blocks according to claim 1, characterized in that: A clamp support frame (6) is fixedly installed at the bottom of the retractable rod tube (10), two clamp plates (7) are fixedly connected to the middle of the clamp splicing plate (8), and the middle parts of the two clamp plates (7) are installed at both ends of the clamp support frame (6).

3. The lifting device for concrete blocks according to claim 1, characterized in that: Steel columns (13) are fixedly connected around the inner bottom of the cage (21), and the steel columns (13) intersect horizontally and vertically to form a fence of the cage (21).

4. The lifting device for concrete blocks according to claim 1, characterized in that: The bottom of the cage (21) is fixedly connected to two parallel tracks (17), the inside of the track (17) is slidably connected to a pulley (20), and the inner circular holes of the two pulleys (20) are rotatably connected to iron rods (22).

5. The lifting device for concrete blocks according to claim 4, characterized in that: The top of the iron rod (22) is rotatably connected to a pedal (19), and one end of the pedal (19) is fixedly connected to two pedal interfaces (16) parallel to each other.

6. The lifting device for concrete blocks according to claim 1, characterized in that: Four universal wheels (18) are installed around the bottom of the bottom plate of the cage (21).

7. The lifting device for concrete blocks according to claim 1, characterized in that: A bolt B (15) is fixedly connected to the middle of the door column (23); when the door and window (25) are closed, a bolt A (14) is fixedly connected above and below the bolt B (15); and a T-shaped lock (24) is installed at the center of the bolt A (14).

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