Navigation channel buoy with protective cover
By installing a mesh sleeve on the outer part of the float and optimizing its connection method, the problem of floating ball displacement after the water plants is wound and the turbine power supply efficiency is solved, achieving more efficient power generation and more convenient maintenance.
Patent Information
- Application Number
- CN202422366127.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The existing floats are easily displaced after being wrapped in water and grass, and the power supply efficiency of the turbine is low, which affects the normal operation of the waterway facilities.
A waterway float with a protective cover is designed. By placing a mesh sleeve on the outer sleeve of the rotor, large water plants are blocked to ensure that the water flow enters fully and generates an action force. At the same time, the sleeve is removably fixed or movably connected to the drive shaft, and the water plants are removed by centrifugal force.
It effectively avoids the floating float displacement caused by aquatic plants and low power supply efficiency of water turbines, improves power generation efficiency, saves manpower and energy, and facilitates sleeve replacement and cleaning.
Smart Images
Figure CN223001650U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of new energy utilization, and particularly relates to a buoy for a waterway with a protective cover. Background Art
[0002] A buoy refers to a navigation mark floating on the water surface. It is anchored at a designated position to mark the waterway range, indicate shoals, navigational hazards, or represent special-purpose water surface aids to navigation. Buoys are the most numerous and widely used in navigation marks and are set in places where it is difficult or inappropriate to set up fixed navigation marks. A buoy equipped with a lamp is called a lighted buoy and is used for navigation in waters with day and night navigation.
[0003] In the prior art, some buoys are also equipped with devices such as radar transponders, radio beacons, fog warning signals, and marine survey instruments. However, the existing buoys cannot be used when the power supply system suddenly fails. For this reason, some buoys also introduce a tidal current turbine to supply power for the pilotage, flow velocity monitoring, etc. of the buoy. Common tidal current conversion devices include rotary turbines, oscillating hydrofoils, and other forms, which are mainly distributed in areas with obvious tidal effects. Due to its unique geographical and climatic conditions, the Yangtze River Basin has the potential to develop tidal current energy, especially in coastal areas and the estuaries of large rivers. However, during the rainy season in the Yangtze River Basin, due to the large amount of precipitation, the weeds on the mountains are washed away by the rain and converge into the river water, resulting in a lot of weeds in the Yangtze River Basin during the rainy season, causing congestion and having a great impact on the normal operation of waterway facilities. Especially for waterway buoys, a large number of weeds attach to the outer wall, and after reaching a certain quantity, the buoy will shift. Therefore, it is very necessary to realize the supply of water flow energy for the pilotage, flow velocity monitoring, etc. of the buoy considering the weeds.
[0004] Therefore, it is of great significance to study how to avoid the buoy being entangled by waterweeds during operation. Utility Model Content
[0005] The purpose of this application is to provide a buoy for a waterway with a protective cover to solve the problems in the prior art that the buoy is entangled by waterweeds and shifted, and the water turbine under the buoy has low power supply efficiency due to being entangled by waterweeds.
[0006] The embodiments of this application can be realized by the following technical solutions:
[0007] A buoy for a waterway with a protective cover includes a floating platform, a power generation device, a rotor, and a protection mechanism.
[0008] The power generation device is integrated below the floating platform, the drive shaft of the power generation device is connected to the rotor, and the protection mechanism is sleeved outside the rotor and connected to the drive shaft through a connecting piece.
[0009] Further, the drive shaft is a vertical shaft extending along its axial direction. The rotor includes a hydrofoil and a first connecting frame. The drive shaft is connected to the middle of the first connecting frame. The first connecting frame extends radially along the drive shaft. The hydrofoil is vertically arranged and disposed on the side of the drive shaft.
[0010] Further, the number of the first connecting frames is two, and the two first connecting frames are respectively connected to the upper and lower ends of the hydrofoil.
[0011] Further, the protection mechanism includes a sleeve and a second connecting frame. A through hole is provided in the middle of the second connecting frame. The side of the second connecting frame is connected to the inner wall of the sleeve. The drive shaft is connected to the through hole of the second connecting frame. Along the radial direction of the drive shaft, the radial length of the second connecting frame is greater than that of the first connecting frame.
[0012] Further, along the axial direction of the drive shaft, the axial length of the sleeve is greater than the axial length of the rotor.
[0013] Further, the second connecting frame is connected to the top of the sleeve.
[0014] Further, a plurality of meshes are provided on the side wall of the sleeve, so that the sleeve forms a mesh sleeve.
[0015] Further, the sleeve is detachably and fixedly connected to the drive shaft, or movably connected to the drive shaft and limited by the connecting member.
[0016] Further, the through hole of the second connecting frame is in clearance fit with the drive shaft. The connecting member is connected to the outside of the drive shaft and located below the second connecting frame. When connected, the connecting member limits the sleeve below the base of the power generation device, so that the sleeve is in close fit with the base.
[0017] Further, the through hole of the second connecting frame is a threaded hole, and the second connecting frame is in threaded connection with the drive shaft.
[0018] The buoy for waterway with a protective cover provided by the embodiment of the present application has at least the following beneficial effects:
[0019] By sleeving a mesh sleeve outside the rotor, the present application ensures that water flow can fully enter the sleeve to act on the rotor for power generation, and also blocks large waterweeds outside the sleeve to avoid the waterweeds winding around the rotor, improving the power generation efficiency, and having the advantages of simple structure and strong practicability.
[0020] In addition, by changing the connection method of the connecting piece, the sleeve can be detachably and fixedly connected to the drive shaft or movably connected to the drive shaft. When the sleeve is detachably and fixedly connected to the drive shaft, the drive shaft can drive the sleeve to rotate synchronously, so that the aquatic plants attached to the surface of the sleeve are thrown to the rear under the action of the centrifugal force of rotation and are washed away by the water flow, eliminating the need for manual removal of the entangled aquatic plants and saving labor. When the sleeve is movably connected to the drive shaft, the rotation of the drive shaft will not drive the sleeve to rotate synchronously, effectively reducing energy loss and having the advantage of saving resources.
[0021] In addition, the sleeve in this application is detachably connected to the drive shaft, enabling the sleeve to be withdrawn from the drive shaft for convenient replacement and cleaning. Brief Description of the Drawings
[0022] Figure 1 is a schematic three-dimensional structure diagram of a buoy for a waterway with a protective cover according to this application;
[0023] Figure 2 is an exploded state diagram of a buoy for a waterway with a protective cover according to this application;
[0024] Figure 3 is a schematic side view structure diagram of a buoy for a waterway with a protective cover according to this application;
[0025] Figure 4 is along Figure 3 the sectional structure diagram taken along the A-A direction in
[0026] Figure 5 is Figure 4 a partial enlarged schematic diagram of one of the connection methods at A in
[0027] Figure 6 is Figure 4 a partial enlarged schematic diagram of another connection method at A in
[0028] The reference numerals in the figure
[0029] 1 - floating platform; 2 - power generation device; 20 - base; 21 - drive shaft; 3 - rotor; 31 - hydrofoil; 32 - first connecting frame; 4 - protection mechanism; 41 - sleeve; 42 - second connecting frame; 5 - connecting piece. Detailed Embodiments
[0030] The following further describes this application based on the preferred embodiments with reference to the drawings.
[0031] In addition, for the convenience of understanding, various components in the drawings are enlarged (thick) or reduced (thin), but this is not intended to limit the protection scope of this application.
[0032] Singular terms also include plural meanings, and vice versa.
[0033] In the description of the embodiments of the present application, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the products of the embodiments of the present application are usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, in the description of the present application, in order to distinguish different units, terms such as first and second are used in this specification, but these are not restricted by the manufacturing order and should not be construed as indicating or implying relative importance. In the detailed description and claims of the present application, their names may be different.
[0034] The terms used in this specification are for the purpose of describing the embodiments of the present application, but are not intended to limit the present application. It should also be noted that unless otherwise clearly specified and defined, if terms such as "set", "connected", "connected to" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be specifically understood.
[0035] As Figures 1 to 6 shown, a buoy for a waterway with a protective cover includes a floating platform 1, a power generation device 2, a rotor 3 and a protection mechanism 4. The power generation device 2 is integrated below the floating platform 1. The drive shaft 21 of the power generation device 2 is connected to the rotor 3. The protection mechanism 4 is sleeved outside the rotor 3 and is connected to the drive shaft 21 through a connecting member 5. The protection mechanism 4 is used to block sundries such as waterweeds to prevent the waterweeds from winding around the rotor 3.
[0036] Specifically, the drive shaft 21 of the power generation device 2 is a vertical shaft extending along its axial direction. The rotor 3 includes a hydrofoil 31 and a first connecting frame 32. The first connecting frame 32 extends radially along the drive shaft 21. A through hole is provided in the middle of the first connecting frame 32. The hydrofoil 31 is connected to the side of the first connecting frame 32. The drive shaft 21 is connected to the through hole of the first connecting frame 32, so that the drive shaft 21 is connected to the middle of the first connecting frame 32.
[0037] Further, the hydrofoil 31 is vertically arranged and disposed on the side of the drive shaft 21 to form a vertical water turbine. When water flows through the hydrofoil 31, the hydrofoil 31 converts the water energy into mechanical energy to drive the drive shaft 21 to rotate, and the drive shaft 21 drives the power generation device 2 to convert the mechanical energy into electrical energy for output.
[0038] In some preferred embodiments, the rotor 3 is a three-blade lift rotor, and the number of the hydrofoils 31 is three. The three hydrofoils 31 are connected to the side of the first connecting frame 32 at equal angles, and the angle between any two of the three hydrofoils 31 is 120°, which is used to more effectively utilize lift power generation and reduce resistance, enabling it to rotate faster and more smoothly.
[0039] In some preferred embodiments, the number of the first connecting frames 32 is two, and the two first connecting frames 32 are respectively connected to the upper and lower ends of the hydrofoil 31 to improve the connection stability, enabling the hydrofoil 31 to rotate more smoothly.
[0040] In some preferred embodiments, in order to fix the installation position of the rotor 3, a locking member can also be provided to limit the connection position of the rotor 3 relative to the drive shaft 21.
[0041] In some preferred embodiments, the protection mechanism 4 is detachably connected to the drive shaft 21 through the connecting member 5, enabling the protection mechanism 4 to be withdrawn from the drive shaft for convenient replacement and cleaning.
[0042] In some preferred embodiments, the protection mechanism 4 includes a sleeve 41 and a second connecting frame 42. A through hole is formed in the middle of the second connecting frame 42, and the side of the second connecting frame 42 is connected to the inner wall of the sleeve 41. The drive shaft 21 is connected to the through hole of the second connecting frame 42, and in the radial direction of the drive shaft 21, the radial length of the second connecting frame 42 is greater than the radial length of the first connecting frame 32, enabling the sleeve 41 to be sleeved outside the rotor 3.
[0043] In some preferred embodiments, in the axial direction of the drive shaft 21, the axial length of the sleeve 41 is greater than the axial length of the rotor 3, enabling the sleeve 41 to wrap the rotor 3 inside it.
[0044] In some preferred embodiments, the second connecting frame 42 is connected to the top of the sleeve 41 to avoid interference of the second connecting frame 42 with the installation position of the rotor 3 and save the axial space for assembly.
[0045] Of course, in some preferred embodiments, the number of the second connecting brackets 42 is also two. The two second connecting brackets 42 are respectively connected to the upper and lower ends of the sleeve 41. Along the axial direction of the drive shaft 21, the axial length between the two second connecting brackets 42 is greater than the circumferential length between the two first connecting brackets 32. The second connecting bracket 42 located at the lower end of the sleeve 41 is detachably connected to the sleeve 41, which is used to not interfere with the assembly of the rotor 3 and enhance the stability of the connection of the sleeve 41.
[0046] In some preferred embodiments, a plurality of meshes are formed in the side wall of the sleeve 41, so that the sleeve 41 forms a mesh sleeve. Of course, the meshes do not have to be too small, as long as they can block large aquatic plants, because small and medium-sized aquatic plants are not easily wound around the rotor 3. In this way, it is ensured that water flow can fully enter the sleeve 41 to act on the rotor 3, and large aquatic plants will not be brought into its interior.
[0047] In some preferred embodiments, in order to facilitate the cleaning of the aquatic plants outside the sleeve 41, the applicant also optimizes the connection manner between the protection mechanism 4 and the drive shaft 21, so that the sleeve 41 can be detachably and fixedly connected to the drive shaft 21 or movably connected to the drive shaft 21.
[0048] In some preferred embodiments, the connecting member 5 includes a sleeve coupling, bolts, etc. Different forms of the connecting member 5 can be selected according to the installation requirements, and function transformation can be realized by adjusting different connection positions.
[0049] Specifically, as Figure 5 shown, in some preferred embodiments, the through hole of the second connecting bracket 42 is in clearance fit with the drive shaft 21. The connecting member 5 is connected to the outside of the drive shaft 21 and is located below the second connecting bracket 42. When connecting, the connecting member 5 limits the sleeve 41 below the base 20 of the power generation device 2, so that the sleeve 41 is in close fit with the base 20. At this time, the sleeve 41 is movably connected to the drive shaft 21. When the drive shaft 21 rotates, it will not drive the sleeve 41 to rotate synchronously, effectively reducing energy loss and having the advantage of saving resources.
[0050] In some preferred embodiments, as Figure 6As shown, the through hole of the second connecting frame 42 is a threaded hole, and the second connecting frame 42 is in threaded connection with the drive shaft 21. At this time, the sleeve 41 is detachably and fixedly connected to the drive shaft 21. The drive shaft 21 rotates and drives the sleeve 41 to rotate synchronously, so that the aquatic plants attached to the surface of the sleeve 41 are thrown to the rear under the action of the centrifugal force during rotation and are washed away by the water flow, eliminating the need for manual removal of the entangled aquatic plants and saving labor.
[0051] In some preferred embodiments, to prevent the sleeve 41 from loosening due to the reaction force of the water flow during rotation, two connecting members 5 can be provided. The two connecting members 5 are connected to the outside of the drive shaft 21 and are respectively arranged above and below the second connecting frame 42 to enhance the connection stability.
[0052] The specific embodiments of the present application have been described in detail above. For those skilled in the art of this technology, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.
Claims
1. A waterway buoy with a protective cover, characterized in that: include: A floating platform (1), a power generation device (2), a rotor (3) and a protective mechanism (4), The power generation device (2) is integrated below the floating platform (1); the drive shaft (21) of the power generation device (2) is connected to the rotor (3); the protection mechanism (4) is sleeved on the outside of the rotor (3) and connected to the drive shaft (21) via a connecting piece (5).
2. A waterway buoy with a protective cover according to claim 1, characterized in that: The drive shaft (21) is a vertical shaft extending along its axial direction, the rotor (3) comprises a hydrofoil (31) and a first connecting frame (32), the drive shaft (21) is connected to the middle part of the first connecting frame (32), the first connecting frame (32) extends along the radial direction of the drive shaft (21), the hydrofoil (31) is vertically arranged, and the hydrofoil (31) is arranged on the side of the drive shaft (21).
3. A waterway buoy with a protective cover according to claim 2, characterized in that: The number of the first connecting frames (32) is two, and the two first connecting frames (32) are respectively connected to the upper and lower ends of the hydrofoil (31).
4. A waterway buoy with a protective cover according to claim 3, characterized in that: The protection mechanism (4) comprises a sleeve (41) and a second connecting frame (42), a through hole is opened in the middle of the second connecting frame (42), the side surface of the second connecting frame (42) is connected to the inner wall of the sleeve (41), the drive shaft (21) is connected to the through hole of the second connecting frame (42), and along the radial direction of the drive shaft (21), the radial length of the second connecting frame (42) is greater than the radial length of the first connecting frame (32).
5. A waterway buoy with a protective cover according to claim 4, characterized in that: Along the axial direction of the drive shaft (21), the axial length of the sleeve (41) is greater than the axial length of the rotor (3).
6. A waterway buoy with a protective cover according to claim 4, characterized in that: The second connecting frame (42) is connected to the top of the sleeve (41).
7. A waterway buoy with a protective cover according to claim 4, characterized in that: The side wall of the sleeve (41) is provided with a plurality of meshes, so that the sleeve (41) forms a mesh sleeve.
8. A waterway buoy with a protective cover according to claim 4, characterized in that: The sleeve (41) is detachably fixedly connected to the drive shaft (21), or movably connected to the drive shaft (21), and is limited in position by the connecting member (5).
9. A waterway buoy with a protective cover according to claim 8, characterized in that: The through hole of the second connecting frame (42) is loosely matched with the driving shaft (21), and the connecting member (5) is connected to the outside of the driving shaft (21) and is located below the second connecting frame (42). When connected, the connecting member (5) limits the sleeve (41) below the base (20) of the power generation device (2), so that the sleeve (41) and the base (20) are tightly matched.
10. A waterway buoy with a protective cover according to claim 8, characterized in that: The through hole of the second connecting frame (42) is a threaded hole, and the second connecting frame (42) is threadedly connected and matched with the driving shaft (21).