Lifting device for riverway grid gabion construction

Abstract

The lifting device comprises a pipe body and a lifting appliance, two supporting plates are symmetrically arranged below an opening in the bottom end of the pipe body, first rotating shafts are rotatably installed at the positions, close to the top end, of the outer walls of the two sides of the pipe body, and connecting plates are fixedly connected to the positions, close to the two ends, of the outer walls of the first rotating shafts. The bottom ends of the connecting plates are fixedly connected with the corresponding supporting plates, and a second rotating shaft is rotatably mounted on the front wall of the pipe body through a bearing seat; the hanging lugs detachably connected with the lifting appliance are arranged on the pipe body, the situation that the lifting appliance interferes with filling of the grid gabion in the pipe body can be avoided, stress is uniform when the grid gabion is disengaged from the pipe body through the arrangement of the two supporting plates, the situation of side turning can be avoided, and in addition, the lifting appliance is convenient to use. As the first rotating shaft serves as the rotating center of the supporting plate and is far away from the ground, the bottom end of the pipe body only needs to be far away from the ground, the space for overturning and opening the supporting plate can be met, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of river engineering technology, specifically a hoisting device for the construction of river grid gabions. Background Technology

[0002] Gabions play multiple roles in river management, including slope protection, bank protection, embankment stabilization, and flow interception. By fixing the stones, gabions form a solid protective layer, which can effectively prevent soil erosion, protect riverbanks from erosion and scouring, and thus maintain the stability of the river. In addition, the gaps between the stones in the gabions provide a good growth environment for plants and microorganisms in the river, which can promote ecological development and protect the riverbank environment.

[0003] Currently, the assembly of gabions is being carried out on the riverbed, which is uneven. Furthermore, the stones need to be transported to the riverbed, resulting in a very large workload and occupying construction space. Once assembled, the gabions are also inconvenient to move, and they are prone to breakage under stress.

[0004] A search revealed that patent CN219408845U discloses a gabion hoisting device, which can be used to place gabions, put stones inside the gabions, and after assembly, connect the crane and hook for direct transport, which can improve transport efficiency and make the gabions less prone to breakage under stress. After reaching the designated position, place it on the riverbed, remove the connecting hook from the connecting ring, and continue hoisting to remove the device.

[0005] In practical use, the above-mentioned solution has several drawbacks. Because the tension plate and hook are directly fixed above the top opening of the cage, it significantly interferes with the process of laying the gabion mesh and filling it with stones, resulting in low filling efficiency. Furthermore, the use of a single bottom plate to seal the bottom of the cage is problematic. When removing the gabion mesh, after opening the connecting hook, the cage must be lifted until the distance between the bottom and the ground is greater than the range of motion of the bottom plate before the gabion mesh can fall out. However, since the bottom plate is hinged at the bottom of the cage, this distance from the ground is relatively large. During this process, the gabion mesh pressing against the rotating bottom plate causes the center of gravity of the gabion mesh to shift, making it prone to tipping over during the process of detaching from the cage. These issues require improvement. Utility Model Content

[0006] The purpose of this utility model is to provide a hoisting device for the construction of river grid gabions, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A hoisting device for constructing river gabion grids includes a pipe body and a lifting device. Two support plates are symmetrically arranged below the bottom opening of the pipe body. A first rotating shaft is rotatably installed on both outer walls of the pipe body near the top. A connecting plate is fixedly connected to the outer wall of the first rotating shaft near both ends. The bottom end of the connecting plate is fixedly connected to the corresponding support plate. A second rotating shaft is rotatably installed on the front wall of the pipe body through a bearing seat. A drive mechanism is installed on the second rotating shaft. Both first rotating shafts are drively connected to the second rotating shaft. Two hanging ears are fixedly connected to the top of both outer walls of the pipe body. The hanging ears are detachably connected to the lifting device.

[0009] As a further embodiment of this utility model: a worm gear is fixedly sleeved at one end of the first rotating shaft near the second rotating shaft, and a worm is provided at both ends of the second rotating shaft. The worm gear and the corresponding worm mesh with each other, and the helical directions of the two worms are opposite.

[0010] As a further embodiment of this utility model: the driving mechanism includes a sprocket fixedly sleeved in the middle of the second rotating shaft, and an annular chain is fitted onto the sprocket.

[0011] As a further embodiment of this utility model: a baffle is fixedly installed on the outer wall of the tube body above the sprocket, and part of the sprocket is located inside the baffle.

[0012] As a further embodiment of this utility model: the lifting device includes a lifting beam, a lifting lug is fixedly installed in the middle of the top surface of the lifting beam, and two lifting cables are fixedly connected to both ends of the bottom of the lifting beam. A hook is fixedly connected to the bottom end of each lifting cable, and the hook is adapted to the lifting lug.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, by providing hanging lugs on the pipe body that can be detachably connected to the lifting device, can avoid interference from the lifting device in the filling of the gabion mesh inside the pipe. Furthermore, with the setting of two support plates, the force on the gabion mesh is more even when it is detached from the pipe, which can prevent it from tipping over. In addition, since the first rotating shaft, which serves as the rotation center of the support plate, is far from the ground, the bottom of the pipe body only needs to be a short distance from the ground to provide enough space for the support plate to flip and open, resulting in good performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a hoisting device used in the construction of gabion grids in river channels.

[0016] Figure 2 This is a schematic diagram of the connecting seat in a hoisting device used for constructing gabion grids in river channels.

[0017] Figure 3This is a schematic diagram of the opening structure of a hoisting device used in the construction of river gabion grids.

[0018] The components include: pipe body 1, first rotating shaft 2, connecting seat 3, connecting plate 4, support plate 5, worm gear 6, second rotating shaft 7, worm 8, sprocket 9, ring chain 10, cover 11, hanging lug 12, lifting beam 13, lifting lug 14, lifting sling 15, and hook 16. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-3 In this embodiment of the utility model, a hoisting device for constructing a river grid gabion includes a pipe body 1 and a lifting device. The pipe body 1 is composed of welded metal plates, which can be square or round. Two support plates 5 are symmetrically arranged below the bottom opening of the pipe body 1. A first rotating shaft 2 is rotatably installed on both outer walls of the pipe body 1 near the top. A connecting plate 4 is fixedly connected to both ends of the outer wall of the first rotating shaft 2. The bottom end of the connecting plate 4 is fixedly connected to the corresponding support plate 5. A second rotating shaft 7 is rotatably installed on the front wall of the pipe body 1 through a bearing seat. A driving mechanism is installed on the second rotating shaft 7. Both first rotating shafts 2 are connected to the second rotating shaft 7 for transmission. Two hanging ears 12 are fixedly connected to the top of both outer walls of the pipe body 1. The hanging ears 12 are detachably connected to the lifting device.

[0021] By adopting the above-mentioned scheme, this utility model allows for the following steps: after placing the gabion mesh into the tube body 1, filling the gabion mesh with stones and sealing it, the lifting device is then connected to each of the hanging lugs 12. The device can then be used to lift the square tube 1 without interfering with the filling of the gabion mesh. Once the square tube 1 is lifted to a certain height above the desired location, the second rotating shaft 7 is driven by the drive mechanism to rotate, causing the two first rotating shafts 2 to rotate simultaneously. This causes the two pallets 5 to flip in opposite directions simultaneously, slowly lowering the gabion mesh. When the distance between the two pallets 5 exceeds the size of the gabion mesh, it falls between the two pallets 5 and contacts the ground. During this process, the gabion mesh experiences uniform force and descends stably, preventing tipping. Furthermore, since the first rotating shaft 2, as the rotation center of the pallet 5, is relatively far from the ground, the bottom of the tube body 1 only needs a short distance from the ground to provide sufficient space for the pallets 5 to flip and open, resulting in good performance.

[0022] Specific combination Figure 1 In one embodiment of this utility model, a worm gear 6 is fixedly sleeved at one end of the first rotating shaft 2 near the second rotating shaft 7, and a worm 8 is provided at both ends of the second rotating shaft 7. The worm gear 6 and the corresponding worm 8 mesh with each other, and the helical directions of the two worms 8 are opposite.

[0023] By using the cooperation of two worm gears 8 with opposite helical directions and worm wheels 6, simply driving the second rotating shaft 7 to rotate will drive the two first rotating shafts 2 to rotate in opposite directions simultaneously, so that the two pallets can rotate in opposite directions at the same time. The operation is simple and convenient.

[0024] Specific combination Figure 1 In one embodiment of this utility model, the driving mechanism includes a sprocket 9 fixedly sleeved in the middle of the second rotating shaft 7. An annular chain 10 is fitted onto the sprocket 9. The specific structure of the sprocket 9 is the same as that of the sprocket used in a manual hoist. A groove adapted to the annular chain 10 is provided on its outer peripheral wall. Therefore, when the annular chain 10 is pulled, the sprocket 9 can be driven to rotate by the cooperation between the annular chain 10 and the groove.

[0025] Specific combination Figure 1 In one embodiment of this utility model, a baffle 11 is fixedly installed on the outer wall of the tube body 1 above the sprocket 9. Part of the sprocket 9 is located inside the baffle 11. By setting the baffle 11, the ring chain 10 can be limited on the outside of the sprocket 9, thereby preventing the ring chain 10 from falling off the sprocket 9.

[0026] Specific combination Figure 1 In one embodiment of the present invention, the lifting device includes a lifting beam 13, a lifting lug 14 is fixedly installed on the middle of the top surface of the lifting beam 13, and two lifting cables 15 are fixedly connected to both ends of the bottom of the lifting beam 13. A hook 16 is fixedly connected to the bottom end of each lifting cable 15, and the hook 16 is adapted to the lifting lug 12.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hoisting device for constructing riverbed gabion mesh, characterized in that: The device includes a pipe body (1) and a lifting device. Two support plates (5) are symmetrically arranged below the bottom opening of the pipe body (1). A first rotating shaft (2) is rotatably installed on both outer walls of the pipe body (1) near the top. A connecting plate (4) is fixedly connected to both ends of the outer wall of the first rotating shaft (2). The bottom end of the connecting plate (4) is fixedly connected to the corresponding support plate (5). A second rotating shaft (7) is rotatably installed on the front wall of the pipe body (1) through a bearing seat. A drive mechanism is installed on the second rotating shaft (7). Both first rotating shafts (2) are connected to the second rotating shaft (7) for transmission. Two hanging ears (12) are fixedly connected to the top of both outer walls of the pipe body (1). The hanging ears (12) are detachably connected to the lifting device.

2. The hoisting device for riverbed gabion construction according to claim 1, characterized in that: The first rotating shaft (2) is fixedly fitted with a worm gear (6) at one end near the second rotating shaft (7), and both ends of the second rotating shaft (7) are provided with worms (8). The worm gear (6) and the corresponding worm (8) mesh with each other, and the helical directions of the two worms (8) are opposite.

3. The hoisting device for riverbed gabion construction according to claim 1, characterized in that: The drive mechanism includes a sprocket (9) fixedly sleeved in the middle of the second rotating shaft (7), and an annular chain (10) is fitted onto the sprocket (9).

4. The hoisting device for riverbed gabion construction according to claim 3, characterized in that: A baffle (11) is fixedly installed on the outer wall of the tube (1) above the sprocket (9), and part of the sprocket (9) is located inside the baffle (11).

5. The hoisting device for riverbed gabion construction according to claim 1, characterized in that: The lifting device includes a lifting beam (13), a lifting lug (14) is fixedly installed on the middle of the top surface of the lifting beam (13), and two lifting cables (15) are fixedly connected to both ends of the bottom of the lifting beam (13). The bottom ends of the lifting cables (15) are fixedly connected to hooks (16), and the hooks (16) are adapted to the lifting lugs (12).

Images