Fastener, sound monitoring assembly and wind turbine generator

Abstract

The utility model discloses a buckle piece, sound monitoring assembly and wind turbine generator, the buckle piece comprises a buckle male piece and a buckle female piece, the buckle male piece is vertically arranged, one side of the lower end of the buckle male piece is provided with a buckle groove, the buckle female piece comprises a seat body, sliding teeth and a first elastic piece, the upper end of the seat body is concavely provided with an avoiding groove, and the sliding teeth are arranged in the avoiding groove. The sliding teeth are arranged at the upper end of the base body in a horizontal sliding mode in the left-right direction, the two ends of the first elastic piece are connected with the sliding teeth and the base body respectively, the lower end of the buckle male piece is aligned with the receding groove and can be inserted into the receding groove, and the sliding teeth slide to be inserted into the buckling groove under the elastic force effect of the first elastic piece so as to limit the buckle male piece. Or the elastic force of the first elastic piece is overcome and the sliding teeth are shifted to retreat from the buckling groove so as to relieve the limiting of the male buckle piece, so that the male buckle piece can be vertically and downwards inserted into the avoiding groove, the sliding teeth are extruded by the first elastic piece to be inserted into the buckling groove, and at the moment, the sliding teeth and the seat body can jointly limit the male buckle piece.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine technology, and particularly relates to a fastener, a sound monitoring assembly, and a wind turbine. Background Technology

[0002] Currently, wind turbine blades are the core wind-catching component of wind turbine generators. Due to exposure to wind and sun, their surfaces may suffer corrosion or mechanical damage (such as cracks or notches). Current monitoring of blade surface conditions primarily relies on monitoring the sound of the blade sweeping air, and analyzing this sound to determine if corrosion or mechanical damage exists. For example, document CN111306008A, "Detection Method, Device, Equipment and Storage Medium for Wind Turbine Blades," discloses how to collect sound signals from wind turbine blades during sweeping air using sound acquisition equipment, generate a corresponding spectrum diagram, and perform image recognition on the spectrum diagram using a damage identification model to identify the damage results of the wind turbine blades. This achieves accurate identification of wind turbine blade damage types based on the spectrum diagram, eliminating the need for manual inspection, saving manpower, and enabling real-time monitoring of the wind turbine blade's health status. However, it does not describe how the sound monitoring element is installed in the wind turbine generator, and in actual operation, the sound monitoring element is easily affected by numerous natural environmental factors, leading to poor accuracy. Utility Model Content

[0003] To solve the above-mentioned technical problems, one of the objectives of this utility model is to provide a snap fastener that is simple in structure and easy to use.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A buckle component includes a male buckle component and a female buckle component. The male buckle component is vertically arranged, and a buckle groove is provided on one side of its lower end. The female buckle component includes a base, a sliding tooth, and a first elastic element. A relief groove is recessed at the upper end of the base. The sliding tooth is horizontally slidable at the upper end of the base in the left-right direction. Both ends of the first elastic element are connected to the sliding tooth and the base respectively. The lower end of the male buckle component is aligned with the relief groove. The lower end of the male buckle component can be inserted into the relief groove. Under the elastic force of the first elastic element, the sliding tooth slides down to be inserted into the buckle groove to limit the male buckle component, or overcomes the elastic force of the first elastic element and pushes the sliding tooth out of the buckle groove to release the limitation on the male buckle component.

[0005] The beneficial effect of the above technical solution is that the snap fastener can be inserted vertically downward into the relief groove, and the first elastic member squeezes the sliding tooth into the snap groove. At this time, the sliding tooth and the seat can jointly limit the snap fastener. If the sliding tooth is manually moved out of the snap groove, the snap fastener can be pulled out of the relief groove.

[0006] In the above technical solution, the middle part of the seat body is provided with a through hole that runs from front to back, and the middle part of the upper end of the seat body is provided with a sliding hole that communicates with the through hole. The lower end of the sliding tooth is provided with a protruding tooth that extends into the through hole through the sliding hole. The first elastic member is horizontally arranged in the through hole in the left-right direction, and one end of the first elastic member is connected to the protruding tooth, and the other end is connected to the seat body.

[0007] The beneficial effect of the above technical solution is that the first elastic element is installed inside the seat body, which makes the overall appearance of the snap fastener more aesthetically pleasing.

[0008] In the above technical solution, the lower end of the convex tooth is provided with an enlarged portion to vertically limit the sliding tooth at the upper end of the seat.

[0009] The advantages of the above technical solution are that it allows the sliding teeth to slide left and right on the seat without easily coming loose, and it is also more aesthetically pleasing.

[0010] In the above technical solution, the first elastic element is a spring.

[0011] The beneficial effect of the above technical solution is that it has good durability.

[0012] In the above technical solution, the upper end of the sliding tooth is provided with an avoidance slope on the side near the groove.

[0013] The beneficial effect of the above technical solution is that when the snap-fit ​​component moves down, it can contact the avoidance slope and squeeze the sliding teeth to open the groove of the avoidance slot.

[0014] The second objective of this utility model is to provide a sound monitoring assembly with a simple structure, excellent shock absorption effect, and resistance to low-temperature environments.

[0015] To achieve the above objectives, another technical solution of this utility model is as follows: A sound monitoring assembly includes a protective cover, a processing box, a box cover, and a plurality of fasteners as described in any one of the claims. The protective cover and the processing box are both vertically arranged. A shock-absorbing assembly is provided on the inner bottom wall of the protective cover. The processing box is placed inside the protective cover and supported on the shock-absorbing assembly. The upper ends of the protective cover and the processing box are both open, and there is an annular first gap between the protective cover and the processing box. A plurality of male fasteners are circumferentially spaced at the edge of the box cover, and a plurality of female fasteners are circumferentially spaced at the outer wall of the processing box and located within the first gap. The plurality of female fasteners correspond one-to-one with the plurality of male fasteners and are aligned with each other. The box cover is horizontally arranged and detachably covers the upper end of the processing box through the plurality of fasteners. The processing box is used to house a sound monitoring element.

[0016] The beneficial effects of the above technical solution are as follows: the processing box is placed on the shock-absorbing assembly inside the protective cover, and the sound monitoring element is installed inside the processing box, which makes the shock absorption effect of the entire processing box excellent. The processing box is provided with a box cover, and the box cover is installed on the processing box by a snap fastener, which makes it easy to install and remove the box cover at the upper end of the processing box, but not easy to loosen.

[0017] The processing box described in the above technical solution is provided with a heating element located within the first gap on its outer wall.

[0018] The beneficial effect of the above technical solution is that the heating element can heat up the entire processing box when the temperature environment is low.

[0019] The shock absorption assembly described in the above technical solution includes multiple damping rods and buffer airbags that are evenly spaced vertically on the bottom wall of the inner wall of the protective cover, and each buffer airbag is provided with a second elastic element. The processing box is placed on the damping rods and buffer airbags.

[0020] The advantages of the above technical solution are: it has a simple structure and good stability, and at the same time, it has a good effect on reducing the size of the processing box.

[0021] The above technical solution also includes a storage frame disposed within the processing box. The storage frame has holes on its side walls and bottom walls. A sealing airbag is filled at the upper end between the storage frame and the processing box. The sealing airbag is used to seal or open the holes on the side walls of the storage frame. The sound monitoring element is used to be installed inside the storage frame.

[0022] The beneficial effect of the above technical solution is that it makes the sealing effect at the contact between the storage frame and the cover plate better, thereby preventing rainwater from entering the storage frame.

[0023] The third objective of this invention is to provide a wind turbine with a simple structure that can monitor in real time whether there is corrosion or mechanical damage on the blade surface.

[0024] To achieve the above objectives, another technical solution of this utility model is as follows: a wind turbine generator set, including the sound monitoring assembly as described above.

[0025] The advantages of the above technical solution are that it has a simple structure and can monitor the sound of the wind turbine blade sweeping in real time under open-air conditions. Attached Figure Description

[0026] Figure 1 This is an elevation view of the buckle component described in Embodiment 1 of this utility model;

[0027] Figure 2This is a schematic diagram of the sliding teeth arranged on the flat surface in Embodiment 1 of this utility model;

[0028] Figure 3 This is an elevation view of the sound monitoring assembly described in Embodiment 2 of this utility model;

[0029] Figure 4 This is a perspective view of the sound monitoring assembly described in Embodiment 2 of this utility model after the protective cover has been removed;

[0030] Figure 5 This is a schematic diagram of the vibration damping assembly described in Embodiment 2 of this utility model;

[0031] Figure 6 This is a simplified structural diagram of the wind turbine generator described in Embodiment 3 of this utility model.

[0032] In the diagram: 1. Buckle; 11. Buckle male; 111. Buckle groove; 12. Buckle female; 121. Base; 1211. Clearance groove; 1212. Through hole; 1213. Sliding hole; 1214. Flat surface; 122. Sliding tooth; 1221. Convex tooth; 12211. Expansion part; 1222. Clearance slope; 123. First elastic element; 2. Protective cover; 3. Processing box; 31. Heating element; 311. Temperature sensor; 312. Controller; 313. Heating element; 4. Box cover; 5. Shock absorption assembly; 51. Damping rod; 52. Buffer airbag; 53. Second elastic element; 54. Support plate; 6. Storage frame; 61. Hole; 7. Sealing airbag; 100. Sound monitoring assembly; 200. Tower; 300. Generator set; 400. Blade. Detailed Implementation

[0033] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0034] Example 1

[0035] like Figure 1As shown, this embodiment provides a fastener, including a male fastener 11 and a female fastener 12. The male fastener 11 is vertically arranged, and a fastening groove 111 is provided on one side of its lower end. The female fastener 12 includes a base 121, a sliding tooth 122, and a first elastic member 123. The upper end of the base 121 is recessed with a relief groove 1211. The sliding tooth 122 is horizontally slidable on the upper end of the base 121 in the left-right direction. The two ends of the first elastic member 123 are respectively connected to the sliding tooth 122 and the base 121. The lower end of the male fastener 11 is aligned with the relief groove 1211. The sliding tooth 122 can be inserted into the relief groove 1211, and under the elastic force of the first elastic member 123, it slides into the insertion groove 111 to limit the locking member 11, or overcomes the elastic force of the first elastic member 123 and pushes the sliding tooth 122 out of the groove 111 to release the limitation on the locking member 11. In this way, the locking member can be inserted vertically downward into the relief groove, and the first elastic member squeezes the sliding tooth into the insertion groove. At this time, the sliding tooth and the seat can jointly limit the locking member. If the sliding tooth is manually pushed out of the groove, the locking member can be pulled out of the relief groove.

[0036] like Figure 2 As shown, in the above technical solution, the seat 121 has a through hole 1212 extending from front to back in the middle, and the upper part of the seat 121 has a sliding hole 1213 that communicates with the through hole 1212 in the middle. The lower end of the sliding tooth 122 has a protruding tooth 1221 that extends into the through hole 1212 through the sliding hole 1213. The first elastic member 123 is horizontally arranged in the through hole 1212 in the left-right direction, and one end of the first elastic member 123 is connected to the protruding tooth 1221, and the other end is connected to the seat 121. In this way, the first elastic member is installed inside the seat, which makes the overall appearance of the buckle part better.

[0037] See details Figure 2 As shown, in the above technical solution, the lower end of the protruding tooth 1221 is provided with an enlarged portion 12211 to vertically limit the sliding tooth 122 on the upper end of the base 121. This ensures that the sliding tooth can only slide left and right on the base and is not easily loosened, and also improves its aesthetics. At this time, the protruding tooth and the two enlarged portions form an inverted "T" shape, thereby preventing the protruding tooth from moving upward and loosening from the sliding hole.

[0038] In the above technical solution, the first elastic element 123 is a spring, which has good durability; the upper end of the sliding tooth 122 is provided with a relief slope 1222 on the side near the buckle groove 111, so that when the buckle moves down, it can contact the relief slope and squeeze the sliding tooth to retract until the groove of the relief groove is opened.

[0039] In this embodiment, the sliding stroke of the sliding tooth on the upper end of the seat can cover or open the groove of the clearance groove (the sliding stroke of the sliding tooth can be limited by the sliding hole, that is, the sliding stroke of the protruding tooth is limited by the length of the sliding hole, thereby limiting the sliding stroke of the sliding tooth).

[0040] Specifically, in this embodiment, when the male and female fasteners are separated, the sliding tooth can slide down under the elastic force of the first elastic element to cover the opening of the relief groove. When the male fastener is inserted, it first contacts the relief slope and squeezes the sliding tooth to open the opening of the relief groove, so that the lower end of the male fastener can be inserted into the relief groove. When the sliding tooth is aligned with the groove, the sliding tooth can slide down under the elastic force of the first elastic element to extend into the groove. At this time, the male fastener cannot be pulled out of the female fastener. Only when the sliding tooth is manually moved out of the groove can the male fastener be pulled out of the relief groove.

[0041] In this embodiment, the base body can be approximately annular, with its inner hole forming the through hole. The upper end of the base body has a flat surface 1214 for sliding installation of the sliding teeth 122, and the clearance groove and sliding hole are also provided on the flat surface.

[0042] Example 2

[0043] like Figure 3 and Figure 4 As shown, this embodiment provides a sound monitoring assembly, including a protective cover 2, a processing box 3, a box cover 4, and multiple fasteners 1 as described in Embodiment 1. Both the protective cover 2 and the processing box 3 are vertically arranged. A shock-absorbing assembly 5 is provided on the inner bottom wall of the protective cover 2. The processing box 3 is placed inside the protective cover 2 and supported on the shock-absorbing assembly 5. The upper ends of both the protective cover 2 and the processing box 3 are open, and there is an annular first gap between them. Multiple male fasteners 11 are circumferentially spaced at the edge of the box cover 4, and multiple female fasteners 12 are circumferentially spaced at the edge of the processing box 4. On the outer wall of box 3, and within the first gap, a plurality of female snap fasteners 12 and a plurality of male snap fasteners 11 correspond one-to-one and are aligned with each other. The box cover 4 is horizontally set and detachably covered on the upper end of the processing box 3 by a plurality of snap fasteners 1. The processing box 3 is used to house the sound monitoring element, so that the processing box is supported on the shock absorption assembly inside the protective cover, and the sound monitoring element is housed inside the processing box, thus making the shock absorption effect of the entire processing box good. The box cover is provided on the processing box, and the box cover is installed on the processing box by snap fasteners, so that the box cover is easy to install and remove on the upper end of the processing box, but not easy to loosen.

[0044] In the above technical solution, a heating element 31 located within the first gap is provided on the outer wall of the processing box 3. This allows the heating element to heat the entire processing box when the ambient temperature is low. In this embodiment, the heating element is a temperature-controlled heating device [it has a temperature sensor 311, a controller 312, and a heating element 313. The temperature sensor and heating element are both located on the outer wall of the processing box, while the controller can be located on the outer wall of the processing box or inside the processing box. The temperature sensor and heating element are electrically connected to the controller (multiple heating elements can be provided, and these multiple heating elements can be arranged circumferentially on the outer wall of the processing box). The operating mode of the heating element can be: when the temperature sensor detects that the temperature within the first gap is below 4°C, the controller can activate the heating element to heat the box until the temperature within the first gap rises to above 10°C. The heating element can be a PTC heating plate]. In this embodiment, the controller can be an ARM series microcontroller.

[0045] like Figure 5 As shown, the shock absorption assembly 5 in the above technical solution includes multiple vertically spaced damping rods 51 and buffer airbags 52 evenly arranged on the inner bottom wall of the protective cover 2. Each buffer airbag 52 is provided with a second elastic element 53 (the second elastic element is a spring). The processing box 3 is supported on the damping rods 51 and buffer airbags 52. Its structure is simple and has good stability, while also providing good shock absorption for the support of the processing box. The shock absorption assembly may also include a support plate 54, which is horizontally arranged inside the protective cover. The upper end of each damping rod is connected to the lower end of the support plate, the upper end of the buffer airbag is in contact with the lower end of the support plate, and the processing box is installed on the upper end of the support plate.

[0046] like Figure 3 and Figure 4 As shown, the above technical solution also includes a storage frame 6 disposed within the processing box 3. The storage frame 6 has holes 61 on its side and bottom walls. A sealing airbag 7 is filled between the storage frame 6 and the processing box 3 (the sealing airbag is an circumferential airbag, and there is a second annular gap between the storage frame and the processing box; the sealing airbag is placed at the upper end of the second gap). The sealing airbag 7 is used to seal or open the holes 61 on the side wall of the storage frame 6. The sound monitoring element is installed inside the storage frame 6, thus improving the sealing effect at the contact point between the storage frame and the cover, thereby preventing rainwater from entering the storage frame. In this embodiment, the sealing airbag is mainly used to seal the gap between the storage frame and the box cover, as well as the upper end between the storage frame and the processing box, making it difficult for moisture to enter the storage box. Preferably, a desiccant (encapsulated desiccant, which is prior art and will not be described in detail here) can also be placed inside the storage box.

[0047] The sound monitoring element described in this embodiment can be a combination of a sound acquisition device, a memory, and a processor, as disclosed in document CN111306008A, "Detection Method, Apparatus, Equipment and Storage Medium for Wind Turbine Blades".

[0048] In this embodiment, the protective cover, processing box, and storage frame can all be square grooves, and heating elements can be installed on the outer side walls of each side of the processing box.

[0049] Example 3

[0050] like Figure 6 As shown, this embodiment provides a wind turbine unit, including the sound monitoring assembly as described in Embodiment 2. Its structure is simple, and the sound monitoring assembly can monitor the sweeping sound of the wind turbine blades in real time under open-air conditions. The wind turbine unit specifically includes a tower 200, a generator set 300, and multiple blades 400. Its installation method is existing technology (the generator set is installed at the top of the tower, and the multiple blades are installed at the power input end of the generator set). The sound monitoring assembly 100 is installed at the top of the generator set 300. (The sweeping sound monitored by the sound monitoring assembly is ultimately analyzed according to the method disclosed in document CN111306008A, "Detection Method, Device, Equipment and Storage Medium for Wind Turbine Blades," to determine whether the blades have corrosion or mechanical damage. This is existing technology and will not be elaborated here.)

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A fastener, characterized in that, The device includes a male snap fastener (11) and a female snap fastener (12). The male snap fastener (11) is vertically oriented, and a snap groove (111) is provided on one side of its lower end. The female snap fastener (12) includes a base (121), a sliding tooth (122), and a first elastic element (123). The upper end of the base (121) is recessed with a relief groove (1211). The sliding tooth (122) is horizontally slidable at the upper end of the base (121) in the left-right direction. The two ends of the first elastic element (123) are respectively connected to the sliding tooth (122). The lower end of the snap fastener (11) is aligned with the relief groove (1211) and connected to the seat body (121). The lower end of the snap fastener (11) can be inserted into the relief groove (1211). The sliding tooth (122) slides into the buckle groove (111) under the elastic force of the first elastic member (123) to limit the snap fastener (11), or overcomes the elastic force of the first elastic member (123) and pushes the sliding tooth (122) out of the buckle groove (111) to release the limitation on the snap fastener (11).

2. The fastener according to claim 1, characterized in that, The seat (121) has a through hole (1212) extending from front to back in the middle, and the upper part of the seat (121) has a sliding hole (1213) that communicates with the through hole (1212). The lower end of the sliding tooth (122) has a protruding tooth (1221) that extends into the through hole (1212) through the sliding hole (1213). The first elastic member (123) is horizontally arranged in the through hole (1212) in the left-right direction, and one end of the first elastic member (123) is connected to the protruding tooth (1221), and the other end is connected to the seat (121).

3. The fastener according to claim 2, characterized in that, The lower end of the protruding tooth (1221) is provided with an enlarged portion (12211) to vertically limit the sliding tooth (122) at the upper end of the seat (121).

4. The fastener according to claim 2, characterized in that, The first elastic element (123) is a spring.

5. The fastener according to claim 2, characterized in that, The upper end of the sliding tooth (122) is provided with a relief slope (1222) on the side near the groove (111).

6. A sound monitoring assembly, characterized in that, The device includes a protective cover (2), a processing box (3), a box cover (4), and multiple fasteners (1) as described in any one of claims 1-5. The protective cover (2) and the processing box (3) are both vertically arranged. A shock-absorbing assembly (5) is provided on the inner bottom wall of the protective cover (2). The processing box (3) is placed inside the protective cover (2) and supported on the shock-absorbing assembly (5). The upper ends of the protective cover (2) and the processing box (3) are both open, and there is an annular first gap between the protective cover (2) and the processing box (3). Multiple male buckle components (11) are arranged circumferentially at intervals at the edge of the box cover (4), and multiple female buckle components (12) are arranged circumferentially at intervals on the outer wall of the processing box (3) and located within the first gap. The multiple female buckle components (12) correspond one-to-one with the multiple male buckle components (11) and are aligned with each other. The box cover (4) is horizontally arranged and detachably covered on the upper end of the processing box (3) by multiple buckle components (1). The processing box (3) is used to house the sound monitoring element.

7. The sound monitoring assembly according to claim 6, characterized in that, A heating element (31) located within the first gap is provided on the outer wall of the processing box (3).

8. The sound monitoring assembly according to claim 6, characterized in that, The shock absorption assembly (5) includes multiple vertically spaced damping rods (51) and buffer airbags (52) evenly arranged on the inner bottom wall of the protective cover (2), and each buffer airbag (52) is provided with a second elastic element (53). The processing box (3) is placed on the damping rods (51) and buffer airbags (52).

9. The sound monitoring assembly according to claim 6, characterized in that, It also includes a storage frame (6) disposed in the processing box (3), the storage frame (6) having holes (61) on its side wall and bottom wall, the upper end between the storage frame (6) and the processing box (3) being filled with a sealing airbag (7), the sealing airbag (7) being used to block or open the holes (61) on the side wall of the storage frame (6), and the sound monitoring element being used to be installed in the storage frame (6).

10. A wind turbine generator set, characterized in that, Includes the sound monitoring assembly as described in any one of claims 6-9.

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