Prefabricated concrete hexagonal block hoisting device
By designing a precast concrete hexagonal block hoisting device made of metal, the problems of low efficiency, high cost, and high danger of existing tools were solved, achieving a safe and efficient hoisting effect.
Patent Information
- Application Number
- CN202520292568.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing hoisting tools for precast concrete hexagonal blocks are inefficient, costly, and dangerous, and are not suitable for hoisting new equipment.
The precast concrete hexagonal block hoisting device, made of metal materials such as ordinary square tubes, steel pipes, steel pins, and reinforcing bars, includes a left frame and a right frame. The frame is connected by main legs, secondary legs, crossbeams, and pins to achieve safe and rapid hoisting of multiple precast concrete hexagonal blocks.
This improved the safety factor and work efficiency of hoisting precast concrete hexagonal blocks, reduced costs, and ensured the safety and stability of the hoisting process.
Smart Images
Figure CN223659599U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precast concrete block hoisting technology, specifically a hoisting device for precast concrete hexagonal blocks. Background Technology
[0002] In recent years, with the country's substantial and continuous investment in water conservancy projects and the comprehensive construction of water conservancy and other related projects, the demand for water conservancy projects has been increasing, and the market size has been continuously expanding. Especially in areas with large populations and uneven distribution of water resources, the water conservancy project market has broad development prospects.
[0003] The water conservancy engineering industry has maintained a continuous growth trend, and competition within the industry has intensified accordingly. With the continuous development of the market, more and more private enterprises are entering the water conservancy engineering market, leading to increasingly fierce competition among companies. This compels companies to improve their competitiveness by continuously improving their construction techniques and methods, innovating technologies, and applying new technologies and equipment, thereby actively participating in market competition, seizing development opportunities, and achieving sustainable development.
[0004] While the government is increasing investment in water conservancy infrastructure, the country is also placing greater emphasis on ecological civilization construction. In river basin and lake ecological governance and restoration projects across the country, the management of river and reservoir slopes and bank protection is a key focus. However, in the past, precast concrete hexagonal block slope and bank protection projects in water conservancy and highway engineering suffered from low construction efficiency, low safety factor, and high cost. Furthermore, there is a lack of appropriate hoisting equipment for the large and heavy precast concrete hexagonal blocks during slope protection construction. Practice has shown that traditional construction tools generally involve a large number of precast concrete hexagonal blocks, each heavy, resulting in low hoisting efficiency. This necessitates manual labor, which is physically demanding and prone to causing injuries during hoisting, and is unsuitable for transporting new equipment. Traditional hoisting tools suffer from the following drawbacks: low efficiency, high cost, and high risk factor. This utility model designs and manufactures a precast concrete hexagonal block hoisting device. Utility Model Content
[0005] This invention addresses the shortcomings of existing hoisting tools, such as low efficiency, high cost, and high risk, by providing a hoisting device for precast concrete hexagonal blocks. The main improvements are increased safety, efficiency, and cost savings in hoisting precast concrete hexagonal blocks. This device is manufactured using ordinary square tubing, steel pipes, steel pins, and reinforcing bars. In practical use, compared to traditional tools, this device offers advantages in safety, simple structure, and high efficiency.
[0006] This utility model is achieved using the following technical solution:
[0007] A precast concrete hexagonal block hoisting device includes a left frame and a right frame with identical structures. A frame beam for fixing the frame is connected between the left frame and the right frame. The left frame includes two main legs 1 and two secondary legs 4. A lifting ring 6 is connected to the upper part of the main legs 1. The two main legs 1 are hinged by main leg pins 31 and are distributed in a cross shape. The lower part of the main legs 1 is hinged to the secondary legs 4 by secondary leg pins 32. A positioning column 5 located below the main leg pin is connected between the two main legs 1.
[0008] Preferably, the frame crossbeam includes a main leg crossbeam 21 and a secondary leg crossbeam 22. The main leg crossbeam is connected between the two corresponding main legs of the left and right frames, and the secondary leg crossbeam is connected between the two corresponding secondary legs of the left and right frames.
[0009] Preferably, a mounting hole is provided in the middle of the main leg 1 of the frame, and a main leg pin 31 is installed in the mounting hole, or a main leg pin 31 with a bearing is installed in the mounting hole; a connecting hole is provided at the lower part of the main leg 1 of the frame, and a secondary leg pin 32 is installed in the connecting hole, or a secondary leg pin 32 with a bearing sleeve is installed in the connecting hole.
[0010] Preferably, the upper part of the main leg 1 of the frame is provided with a main leg beam hole, and the main leg 1 of the frame is welded to the main leg beam 21 which is vertically inserted into the main leg beam hole to form a whole.
[0011] Preferably, each main leg pin 31 has pin heads at both ends, and the pin heads are vertically welded to the exposed ends of the main leg pins; each secondary leg pin 32 has secondary leg pin heads at both ends, and the secondary leg pin heads are vertically welded to the exposed ends of the main leg pins.
[0012] Preferably, the lower part of the secondary leg 4 of the frame has a secondary leg beam hole, and the secondary leg 4 and the secondary leg beam 22 inserted vertically into the secondary leg beam hole are welded together as a whole; the upper part of the secondary leg 4 of the frame has a secondary leg connecting hole corresponding to the connecting hole, and a secondary leg axle pin 32 is installed in the secondary leg connecting hole, or a secondary leg shaft 32 with a bearing is installed in the secondary leg connecting hole.
[0013] Preferably, one end of the positioning post 6 is welded to a main leg 1 of a frame, and the other end of the positioning post abuts against the side of another main leg of a frame.
[0014] Preferably, there is an angle between the positioning post 5 and a welded main leg 1 of the frame.
[0015] Preferably, the lifting ring 6 is welded to the top of the main leg of the frame.
[0016] Preferably, the lifting ring 6 is an elliptical lifting ring or a semi-circular lifting ring.
[0017] This utility model features a reasonable and reliable structural design, making it widely applicable in water conservancy, highway, and municipal engineering fields, particularly for the hoisting of precast hexagonal blocks for slope protection. Utilizing the self-weight of the main legs 1, main leg beams 21, secondary legs 4, and secondary leg beams 22, along with the flexible rotation of the hinged connecting pins, multiple precast concrete hexagonal blocks can be accurately, stably, safely, and quickly hoisted onto the work surface in a single operation with manual assistance. This device facilitates maintenance and inspection during actual operation, allows for the adjustment of different hoisting angles for precast blocks of varying sizes via positioning columns, and is reusable and cyclical. Attached Figure Description
[0018] Figure 1 This is an overall schematic diagram of the precast concrete hexagonal block hoisting device of this utility model.
[0019] Figure 2 This is a schematic diagram of the positioning column structure of the precast concrete hexagonal block hoisting device of this utility model.
[0020] In the diagram: 1-Main leg of the frame, 21-Main leg crossbeam, 22-Secondary leg crossbeam, 31-Main leg pivot pin, 32-Secondary leg pivot pin, 4-Secondary leg of the frame, 5-Positioning column, 51-Clamping part, 6-Lifting ring, 7-Connection point. Detailed Implementation
[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0022] like Figure 1 As shown, a precast concrete hexagonal block hoisting device includes a left frame and a right frame with identical structures. A frame beam for fixing the frame is connected between the left frame and the right frame. The left frame includes two main legs 1 and two secondary legs 4. A lifting ring 6 is connected to the upper part of the main legs 1. The two main legs 1 are hinged by main leg pins 31 and are distributed in a cross shape. The lower part of the main legs 1 is hinged to the secondary legs 4 by secondary leg pins 32. A positioning column 5 located below the main leg pins 31 is connected between the two main legs 1.
[0023] Preferably, the frame crossbeam includes a main leg crossbeam 21 and a secondary leg crossbeam 22. The main leg crossbeam is connected between two corresponding main legs of the left and right frames, and the secondary leg crossbeam is connected between two corresponding secondary legs of the left and right frames. The number of main leg crossbeams 21 and secondary leg crossbeams 22 is the same, with at least one main leg crossbeam 21 and one secondary leg crossbeam 22 on each side. The main leg crossbeams and secondary leg crossbeams are made of steel pipes.
[0024] Preferably, a mounting hole is provided in the middle of the main leg of the frame, and a main leg pin 31 is installed in the mounting hole, or a main leg pin 31 with a bearing is installed in the mounting hole; a connecting hole is provided at the lower part of the main leg 1 of the frame, and a secondary leg pin 32 is installed in the connecting hole, or a secondary leg pin 32 with a bearing sleeve is installed in the connecting hole.
[0025] Preferably, the upper part of the main leg 1 of the frame is provided with a main leg beam hole, and the main leg 1 of the frame is welded to the main leg beam 21 which is vertically inserted into the main leg beam hole to form a whole.
[0026] Preferably, each of the main leg pins 31 has pin heads at both ends (not shown in the figure), and the pin heads are vertically welded to the exposed ends of the main leg pins; each of the secondary leg pins 32 has secondary leg pin heads at both ends (not shown in the figure), and the secondary leg pin heads are vertically welded to the exposed ends of the main leg pins.
[0027] Preferably, the lower part of the secondary leg 4 of the frame has a secondary leg crossbeam hole, and the secondary leg 4 and the secondary leg crossbeam 22 inserted vertically into the secondary leg crossbeam hole are welded together as a whole; the upper part of the secondary leg 4 has a secondary leg connecting hole corresponding to the connecting hole, and a secondary leg axle pin 32 is installed in the secondary leg connecting hole, or a secondary leg shaft 32 with a bearing is installed in the secondary leg connecting hole. Specifically, the main leg 1 and the secondary leg 4 of the frame are galvanized square tubes.
[0028] Preferred, such as Figure 2 As shown, one end of the positioning column 5 is welded to the main leg 1 of the frame, and the other end of the positioning column 5 abuts against the side of another main leg of the frame; specifically, the abutting end of the positioning column is provided with a clamping part 51, which is a fork-shaped clamping part; when the device is not hoisting, the abutting end slides so that the distance between the main legs of the frame is greater than the length of the precast concrete hexagonal block, so as to maintain a reasonable distance between the main legs of the frame and realize convenient hoisting.
[0029] Preferably, an angle is maintained between the positioning post 5 and a welded main leg 1 of the frame. Specifically, the angle between the positioning post and the main leg of the frame is 33°-37°; the optimal angle is 35° (elevation). The positioning post is a steel pipe.
[0030] Preferably, the lifting ring is welded to the top of the main leg of the frame, and is reliably and firmly welded into a whole.
[0031] Preferably, the lifting rings are elliptical or semi-circular. The four lifting rings are reliably connected to the sling in parallel via U-shaped rings. The sling is connected to the lifting equipment.
[0032] The components of this utility model are as follows: 1) The frame adopts four main legs 1, which are hinged by main leg pins 31; the main legs are the main load-bearing components of the frame. The length of the main legs can be adjusted at any time according to the size of the precast concrete hexagonal blocks to meet the hoisting of different precast concrete hexagonal blocks, and accurately and effectively connect them into a flexible, concentric, and retractable overall load-bearing structure.
[0033] 2) The two main leg beams 21 at the top can keep the frame stable during the lifting and unloading process, and prevent rotation that could cause the precast concrete hexagonal blocks to fall and injure relevant personnel.
[0034] 3) The two lower secondary leg beams 22 firmly lock and fix the precast concrete hexagonal blocks by the weight of the frame (the main leg, the secondary leg, and the beam), ensuring that multiple (ten) precast concrete hexagonal blocks are hoisted to the work surface in a stable and neat manner.
[0035] 4) The main legs and secondary legs of the frame are hinged with axle pins to allow for flexible adjustment of the angle of the main legs and secondary legs at any time, ensuring that the hoisting and unloading of the precast concrete hexagonal blocks is free and convenient.
[0036] 5) The lower part of the frame consists of four secondary legs 4 that are hinged to the four main legs of the upper frame through secondary leg axle pins to form a sturdy, flexible and integrated hoisting frame.
[0037] 6) The length of the positioning column 5 can be adjusted according to the different specifications and sizes of the precast concrete hexagonal blocks being hoisted. The positioning column is used to maintain the distance between the two main leg beams and to limit the distance between the two secondary leg beams when hoisting the precast concrete hexagonal blocks.
[0038] 7) The four lifting rings 6 are welded to the main legs of the frame to form a whole. Each lifting ring evenly distributes the total weight of the frame and the precast concrete hexagonal blocks being lifted, ensuring a stable, reliable and safe operation during the lifting process.
[0039] 8) Weld the connection points 7 of each crossbeam at both ends of the main leg and secondary leg of the frame firmly to ensure the integrity and stability of the hoisting frame.
[0040] The specific manufacturing process of this utility model is as follows: 1. Four galvanized square tubes (10cm*4cm) with a length of 1.5m are used as the main legs 1 of the frame. A pivot pin hole is drilled in the center of the middle position of each main leg. The specific diameter of the pivot pin hole is 30mm.
[0041] 2. Place the two main legs of the frame in a cross shape on a horizontal surface. Drill holes in the middle of the two main legs to ensure they are completely aligned. Insert 25mm diameter round main leg pins into the overlapping holes of the two main legs. Weld the exposed vertical pin head of each main leg pin with a 12mm diameter and 4cm length steel bar to ensure that the two main legs can rotate flexibly without slipping off the pins.
[0042] 3. Four galvanized square tubes are used as the bottom secondary legs of the frame. These four secondary legs are connected to the main legs of the frame via pins using the same method described above. This ensures that each secondary leg can rotate freely while also being able to lift the clamped precast concrete hexagonal blocks. The galvanized square tubes are 40cm long and 10cm x 4cm in size.
[0043] 4. Cut two steel pipes for positioning posts 5. At a position 30cm above the hinge point between the main leg and the secondary leg of the scaffold, weld one end of the positioning post firmly to the main leg at a 35° angle. The other end of the positioning post should extend 35cm and overlap with the side of another main leg in the same group. The positioning post can be welded to the main leg on the same side, or it can be cross-welded to main legs at different positions. The steel pipe for the positioning post is 40cm long, with an outer diameter of 50mm and a wall thickness of 2.75mm.
[0044] 5. Cut four steel pipes to serve as two main leg crossbeams 21 and two secondary leg crossbeams 22. Drill 60mm diameter holes for the main leg crossbeams and secondary leg crossbeams respectively, 5cm from the ends of the main and secondary legs. Insert the two main leg crossbeams into the main legs and the two secondary leg crossbeams into the secondary legs respectively, and weld them securely. Ensure that the left and right main legs and secondary legs of the frame are completely aligned on the same plane to guarantee the integrity and stability of the frame. The steel pipes are 1.7m long, 50mm in outer diameter, and 2.75mm thick.
[0045] 6. The elliptical lifting rings are made of grade III threaded steel bars with a diameter of 14mm, a major axis of 20mm, and a minor axis of 12mm. The four elliptical lifting rings are respectively overlapped with the top of the main leg of the frame and welded firmly to ensure that they will not break or deform when lifting precast concrete hexagonal blocks.
[0046] 7. During the hoisting operation, connect the four lifting rings to the two prepared slings of equal length in parallel and reliably. After carefully checking that the slings, U-rings, and hoisting frame components are undamaged or broken, the hoisting operation of the precast concrete hexagonal blocks can be carried out.
[0047] 8. Lifting equipment should be selected independently based on the project site, working conditions, and available equipment. Commonly used lifting equipment includes excavators and cranes.
[0048] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0049] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A hoisting device for precast concrete hexagonal blocks, comprising a left frame and a right support frame with identical structures, characterized in that: The left and right frames are connected by a frame beam for fixing the frames. The left frame includes two main frames (1) and two secondary frames (4). The upper part of the main frames (1) is connected to a lifting ring (6). The two main frames (1) are hinged by a main frame axle pin (31) and the two main frames (1) are distributed in a cross shape. The lower part of the main frames (1) is hinged to the secondary frames (4) by a secondary frame axle pin (32). A positioning column (5) located below the main frame axle pin is connected between the two main frames (1).
2. The precast concrete hexagonal block hoisting device according to claim 1, characterized in that: The frame beams include main leg beams (21) and secondary leg beams (22). The main leg beams (21) are connected between the two main legs (1) of the left and right frames, and the secondary leg beams (22) are connected between the two secondary legs (4) of the left and right frames.
3. The precast concrete hexagonal block hoisting device according to claim 1, characterized in that: The main leg (1) of the frame has an installation hole in the middle, and a main leg pin (31) is installed in the installation hole, or a main leg pin (31) with a bearing is installed in the installation hole; the main leg (1) of the frame has a connection hole at the lower part, and a secondary leg pin (32) is installed in the connection hole, or a secondary leg pin (32) with a bearing is installed in the connection hole.
4. The precast concrete hexagonal block hoisting device according to claim 3, characterized in that: The main leg (1) of the frame has a main leg beam hole on its upper part, and the main leg (1) of the frame is welded to the main leg beam (21) which is vertically inserted into the main leg beam hole to form a whole.
5. The precast concrete hexagonal block hoisting device according to claim 1, characterized in that: Each of the main leg pins (31) has pin heads at both ends, and the pin heads are vertically welded to the exposed ends of the main leg pins; each of the secondary leg pins (32) has secondary leg pin heads at both ends, and the secondary leg pin heads are vertically welded to the exposed ends of the main leg pins.
6. The precast concrete hexagonal block hoisting device according to claim 1, characterized in that: The lower part of the secondary leg (4) of the frame is provided with a secondary leg beam hole, and the secondary leg (4) of the frame is welded to the secondary leg beam (22) which is vertically inserted into the secondary leg beam hole to form a whole; the upper part of the secondary leg (4) of the frame is provided with a secondary leg connection hole corresponding to the main leg connection hole, and a secondary leg axle pin (32) is installed in the secondary leg connection hole, or a secondary leg axle pin (32) with a bearing is sleeved in the secondary leg connection hole.
7. The precast concrete hexagonal block hoisting device according to claim 1, characterized in that: One end of the positioning post (6) is welded to a main leg (1) of a frame, and the other end of the positioning post (6) abuts against the side of another main leg (1) of a frame.
8. The precast concrete hexagonal block hoisting device according to claim 7, characterized in that: An angle is left between the positioning column (5) and a welded frame main leg (1).
9. A precast concrete hexagonal block hoisting device according to claim 1, characterized in that: The lifting ring (6) is welded to the top of the main leg of the frame.
10. A precast concrete hexagonal block hoisting device according to claim 9, characterized in that: The lifting ring is an elliptical lifting ring or a semi-circular lifting ring.