Rainproof ring

Abstract

The embodiment of the utility model relates to the technical field of wind power generation equipment, and provides a rainproof ring which is used for being installed on the top of a tower drum flange and can effectively protect a lower-section tower drum flange against rain in the small rain scene in the tower drum hoisting process, and then butt joint operation of an upper-section tower drum and the lower-section tower drum is achieved. The rainproof ring comprises a plurality of arc-shaped rainproof covers, each arc-shaped rainproof cover comprises a top edge part, a first side edge part and a second side edge part, and the first side edge parts and the second side edge parts are connected with the two opposite sides of the top edge parts correspondingly; the top edge part is used for being arranged on the top surface of a tower drum flange, the first side edge part is used for being arranged on the inner wall of the tower drum flange, and the second side edge part is used for being arranged on the outer wall of the tower drum flange; the multiple arc-shaped rainproof covers are sequentially connected to form a rainproof ring in a surrounding mode.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of wind power generation equipment, and particularly relate to a rainproof ring. BACKGROUND

[0002] Wind power generation is to convert the kinetic energy of wind into mechanical kinetic energy, and then convert the mechanical energy into electric kinetic energy. The wind power generation device is called a wind turbine generator unit. The wind turbine generator unit can be divided into a wind wheel (including a tail rudder), a generator and a tower.

[0003] During the installation of the segmented tower drum, temporary rainfall problems may occur due to weather factors. At present, the upper part of the tower drum is mainly protected from rain as a whole to avoid rainwater from entering the inside of the tower drum. The upper segment tower drum and the lower segment tower drum cannot be connected in the case of light rain during the tower drum hoisting process. The tower bottom group hoisting can only be performed in the weather without rain, which causes the wind turbine assembly to stop working, reduces the efficiency of the large crane operation, and affects customer satisfaction. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide a rainproof ring, which can at least effectively protect the flange of the lower segment tower drum from rain in the case of light rain during the tower drum hoisting process, and then realize the connection of the upper segment tower drum and the lower segment tower drum.

[0005] According to some embodiments of the present application, the embodiments of the present application provide a rainproof ring for being installed on the top of the tower drum flange, which comprises: a plurality of arc-shaped rainproof covers, the arc-shaped rainproof cover comprising a top edge part, a first side edge part and a second side edge part, the first side edge part and the second side edge part being connected to the two opposite sides of the top edge part respectively; the top edge part is arranged on the top surface of the tower drum flange, the first side edge part is arranged on the inner wall of the tower drum flange, and the second side edge part is arranged on the outer wall of the tower drum flange; wherein the plurality of arc-shaped rainproof covers are connected in sequence to form a rainproof ring.

[0006] In some embodiments, the end of an arc-shaped rainproof cover is sleeved on the end of an adjacent arc-shaped rainproof cover.

[0007] In some embodiments, the end of an arc-shaped rainproof cover abuts against the end of an adjacent arc-shaped rainproof cover.

[0008] In some embodiments, the rainproof ring further comprises: a plurality of fasteners, the fasteners being sleeved at the junctions of adjacent arc-shaped rainproof covers, and the two ends of the fasteners being clamped to fix the arc-shaped rainproof covers or being spread apart to loosen the arc-shaped rainproof covers.

[0009] In some embodiments, the fastener comprises a clamping portion and a locking portion, the clamping portion is used to clamp the inner wall and the outer wall of the tower flange, the locking portion is located at the end of the clamping portion on the inner wall of the tower flange, the locking portion is rotated in a first direction to clamp the two ends of the clamping portion, and the locking portion is rotated in a second direction to release the two ends of the clamping portion, the first direction is opposite to the second direction.

[0010] In some embodiments, the fastener further comprises an abutting portion, the abutting portion is located between the clamping portion and the first side edge portion and / or between the clamping portion and the second side edge portion, and the locking portion is rotated in the first direction to abut the abutting portion with the first side edge portion and / or the second side edge portion.

[0011] In some embodiments, the clamping portion comprises a first clamping portion, a second clamping portion and a connecting portion, the first clamping portion, the connecting portion and the second clamping portion are sequentially connected to form an arch shape, the connecting portion is used to abut the top edge portion, and / or the first clamping portion and the second clamping portion are respectively used to abut the first side edge portion and the second side edge portion.

[0012] In some embodiments, the top edge portion is protruded away from the top surface of the tower flange.

[0013] In some embodiments, the arc-shaped rain cover comprises a rubber arc-shaped rain cover.

[0014] In some embodiments, the first side edge portion has a plurality of protruding structures towards the surface of the inner wall of the tower flange; and / or the second side edge portion has a plurality of protruding structures towards the surface of the outer wall of the tower flange.

[0015] The technical scheme provided by the embodiments of the present application has at least the following advantages:

[0016] The rainproof ring provided by the embodiment of the application is composed of a plurality of arc-shaped rainproof covers connected in sequence. The arc-shaped rainproof cover comprises a top edge part arranged on the top surface of the tower flange and two edge connecting first and second side edge parts opposite to the top edge part, and the first and second side edge parts are arranged on the inner wall and the outer wall of the tower flange respectively. In this way, the arc-shaped rainproof cover is sleeved on the top surface of the tower flange to protect the top of the tower flange from being rained on, and the plurality of arc-shaped rainproof covers form a rainproof ring, which can facilitate manual installation and disassembly by workers. Specifically, during the installation of the segmented tower, the top of the upper tower can be hoisted through the rain shield to avoid the top of the upper tower being rained on; in the lower tower, the workers manually install the rainproof ring on the tower flange at the top of the lower tower to avoid the top surface of the tower flange at the top of the lower tower being rained on and accumulating water during the hoisting process of the upper tower; further, when the upper tower is hoisted above the lower tower, the top surface of the lower tower is shielded by the upper tower, so that the top of the lower tower will not be rained on, and after the workers manually disassemble the rainproof ring, the upper tower and the lower tower are connected and installed, so that effective rain protection can be realized for the lower tower flange in the case of light rain during the hoisting of the tower, and the connection operation of the upper tower and the lower tower is realized, thereby improving the installation efficiency of the wind turbine generator. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments are illustrated by way of example in the drawings that are not intended to be limiting of the application, unless otherwise specifically indicated. Unless otherwise specifically indicated, the drawings shown in the Figures herewith are not to scale, and any values given, are approximate, unless specifically stated. For purposes of clarity and explanation, the drawings in the following description do not necessarily show all of the components of a typical device or apparatus, but are intended as illustrative only, as would be understood by those having ordinary skill in the art assigned to contemplate the application otherwise configured.

[0018] Figure 1 A structural schematic diagram of a rainproof ring provided by the embodiment of the application;

[0019] Figure 2 A front view of an arc-shaped rainproof cover provided by the embodiment of the application installed on a tower flange;

[0020] Figure 3 A top view of an arc-shaped rainproof cover provided by the embodiment of the application installed on a tower flange;

[0021] Figure 4 A structural schematic diagram of a rainproof ring provided by the embodiment of the application; Figure 3 A sectional structural schematic diagram along the AA1 direction;

[0022] Figure 5A structural schematic diagram of an arc-shaped rain cover provided by an embodiment of the present application;

[0023] Figure 6 For Figure 3 A sectional view along the direction of AA1;

[0024] Figure 7 A structural schematic diagram of a clamping part fixing the arc-shaped rain cover on the tower flange provided by an embodiment of the present application;

[0025] Figure 8 A structural schematic diagram of another clamping part fixing the arc-shaped rain cover on the tower flange provided by an embodiment of the present application. DETAILED DESCRIPTION

[0026] As known from the background art, the upper section tower cannot be butt-jointed in the case of light rain during the tower hoisting process.

[0027] In the installation process of the segmented tower, the upper section tower is butt-jointed with the lower section tower by hoisting. If it rains, whether it is heavy rain or light rain, a rain shield is usually arranged on the top of the tower to shield the entire tower, so as to avoid the rain from falling on the tower flange or the devices inside the tower. In this way, the butt-joint installation cannot be continued, and the tower bottom group hoisting can only be carried out in the weather without rain, which leads to the decrease of the installation efficiency of the wind turbine generator.

[0028] The present application provides a rainproof ring, which can effectively protect the lower section tower flange from rain in the case of light rain during the tower hoisting process, and thus realize the butt-joint of the upper section tower and the lower section tower, improve the installation efficiency of the wind turbine generator, and the rainproof ring is composed of a plurality of arc-shaped rain covers connected in sequence, which can facilitate manual installation and disassembly by workers.

[0029] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0030] In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0031] In this document, the reference to "embodiments" means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean that the same embodiments are referred to, nor does it mean that the embodiments are mutually exclusive or alternative to each other. The skilled person explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0032] In the description of the embodiments of the present application, the term "and / or" is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of existence of A, existence of A and B, and existence of B. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0033] In the description of the embodiments of the present application, the technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0034] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] In the description of the embodiments of the present application, when a certain component "includes" another component, unless otherwise specified, other components are not excluded, and other components can also be further included.

[0036] The terms used in the description of various described embodiments herein are only used to describe specific embodiments and are not intended to be limiting. As used in the description of various embodiments and the appended claims, "component" is also intended to include the plural form, unless the context clearly indicates otherwise.

[0037] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art can understand that in the embodiments of the present application, many technical details are proposed in order to make the reader better understand the present application. However, the technical solutions claimed by the present application can be realized even without these technical details and various changes and modifications based on the following embodiments.

[0038] Figure 1 A structure schematic view of a rainproof ring provided by the embodiments of the present application is shown in the figure; Figure 2A front view of an arc-shaped rain cover provided by an embodiment of the present application is installed on a tower flange; Figure 3 A top view of an arc-shaped rain cover provided by an embodiment of the present application is installed on a tower flange; Figure 4 A top view of an arc-shaped rain cover provided by an embodiment of the present application is installed on a tower flange; Figure 3 A sectional structure schematic diagram along the AA1 direction; Figure 5 A structure schematic diagram of an arc-shaped rain cover provided by an embodiment of the present application.

[0039] With reference to Figures 1 to 5 The rainproof ring provided by the embodiment of the present application is used for being installed on the top of the tower flange 3, the tower flange 3 has a plurality of installation holes (not shown in the figure), and the plurality of installation holes are uniformly distributed in the tower flange 3 in the circumferential direction. The rainproof ring 1 comprises: a plurality of arc-shaped rain covers 2, the arc-shaped rain cover 2 comprises a top edge part 13, a first side edge part 11 and a second side edge part 12, the first side edge part 11 and the second side edge part 12 are respectively connected to the two opposite sides of the top edge part 13; the top edge part 13 is used for being arranged on the top surface of the tower flange 3, the first side edge part 11 is used for being arranged on the inner wall of the tower flange 3, and the second side edge part 12 is used for being arranged on the outer wall of the tower flange 3; and the plurality of arc-shaped rain covers 2 are sequentially connected to enclose the rainproof ring 1.

[0040] The rainproof ring 1 provided by the embodiment of the present application is composed of a plurality of sequentially connected arc-shaped rain covers 2, the arc-shaped rain cover 2 comprises a top edge part 13 used for being arranged on the top surface of the tower flange 3 and a first side edge part 11 and a second side edge part 12 connected to the two opposite sides of the top edge part 13, the first side edge part 11 and the second side edge part 12 are respectively used for being arranged on the inner wall and the outer wall of the tower flange 3, in this way, the arc-shaped rain cover 2 is sleeved on the top surface of the tower flange 3 to protect the top of the tower flange 3 from being rained on, and the plurality of arc-shaped rain covers 2 form the rainproof ring 1, which can be manually installed and disassembled by workers. Specifically, in the installation process of the segmented tower, the top of the upper segment tower can be hoisted through the rain shield to avoid the top of the upper segment tower being rained on; in the lower segment tower, the workers manually install the rainproof ring 1 on the tower flange 3 at the top of the lower segment tower to avoid the top surface of the tower flange 3 at the top of the lower segment tower being rained on and accumulating water during the hoisting process of the upper segment tower; further, when the upper segment tower is hoisted above the lower segment tower, the top surface of the lower segment tower is shielded by the upper segment tower, at this time, the top of the lower segment tower will not be rained on, and after the workers manually disassemble the rainproof ring 1, the butt joint and installation of the upper segment tower and the lower segment tower are completed, in this way, the lower segment tower flange is effectively protected from rain in the case of light rain during the hoisting process of the tower, and the butt joint operation of the upper segment tower and the lower segment tower is realized, and the installation efficiency of the wind turbine generator system is improved.

[0041] In the embodiment, the end of one arc-shaped rain cover 2 is sleeved on the end of the adjacent other arc-shaped rain cover 2. In this way, the adjacent arc-shaped rain covers 2 are arranged in an overlapping manner, so that rainwater cannot fall into the gap between the adjacent arc-shaped rain covers 2, and further cannot flow into the top surface of the tower flange 3, thereby improving the rainproof effect of the rainproof ring 1.

[0042] Specifically, referring to Figures 1 to 5 , one end of the arc-shaped rain cover 2 can be a male end 21, and the other end can be a female end 22. The outer wall shape of the male end 21 is consistent with the inner wall shape of the female end 22. In the adjacent two arc-shaped rain covers 2, the female end 22 of one arc-shaped rain cover 2 is sleeved on the male end 21 of the adjacent other arc-shaped rain cover 2.

[0043] Further, the top edge portion 13 of the male end 21 can extend towards the female end 22 to increase the overlapping degree of the male end 21 and the female end 22, and further avoid rainwater from flowing to the tower flange 3 through the gap between the male end 21 and the female end 22.

[0044] In other embodiments, the end of one arc-shaped rain cover can also abut against the end of the adjacent other arc-shaped rain cover, that is, the abutting manner is used to make there be no gap between the adjacent arc-shaped rain covers, so as to avoid rainwater from falling on the top surface of the tower flange.

[0045] Referring to Figure 4 , the top edge portion 13 can protrude away from the top surface of the tower flange 3. In this way, the surface area of the top edge portion 13 can be avoided, and in the subsequent process of disassembling the rainproof ring, the problem of excessive water falling on the top surface of the tower flange 3 can be avoided.

[0046] In the embodiment, the shape of the protruding top edge portion 13 is taken as a rectangle. In other embodiments, the shape of the protruding top edge portion can also be an arch, a triangle, or a trapezoid, etc.

[0047] In other embodiments, the top edge portion can also be a planar structure.

[0048] Figure 6 To Figure 3 the sectional view along the AA1 direction.

[0049] Referring to Figure 3 and Figure 6 , in some embodiments, the rainproof ring 1 can further include a plurality of fasteners 4. The fasteners 4 are sleeved at the joint of the adjacent arc-shaped rain covers 2. The two ends of the fasteners 4 can be clamped to fix the arc-shaped rain covers 2 or can be opened to loosen the arc-shaped rain covers 2. The fasteners 4 can improve the stability of the arc-shaped rain covers 2 installed on the tower flange 3, and avoid the problem that the arc-shaped rain covers 2 are blown away in a windy scene.

[0050] In the embodiment, the end (female end 22) of one arc-shaped rain cover 2 is sleeved on the end (male end 21) of the adjacent arc-shaped rain cover 2, and thus the fastener 4 is located on the female end 22 of the arc-shaped rain cover 2. In other embodiments, when the end of one arc-shaped rain cover abuts against the end of the adjacent arc-shaped rain cover, the fastener can be located on the top edge of the adjacent two arc-shaped rain covers, that is, the fastener covers the gap between the adjacent two arc-shaped rain covers to avoid rainwater from seeping into the tower flange from the gap between the adjacent two arc-shaped rain covers.

[0051] With reference to Figure 6 , the fastener 4 can include a clamping portion 41 and a locking portion 42. The clamping portion 41 is used to clamp the inner wall and the outer wall of the tower flange 3, and the locking portion 42 is located at the end of the clamping portion 41 on the inner wall of the tower flange 3. The locking portion 42 is rotated in a first direction to clamp the two ends of the clamping portion 41, and is rotated in a second direction to loosen the two ends of the clamping portion 41. The first direction is opposite to the second direction. Taking the direction in which the center of the tower flange 3 spreads outward as an axis, the first direction can be a direction of rotating clockwise along the axis, and the second direction can be a direction of rotating counterclockwise along the axis; or the first direction can be a direction of rotating counterclockwise along the axis, and the second direction can be a direction of rotating clockwise along the axis.

[0052] In other embodiments, the fastener can also be a clip. One end of the clip is used to abut against at least one of the first side edge, the second side edge, or the top edge, so that the arc-shaped rain cover is clamped on the tower flange. The other end of the clip can be pinched to open the clip and thus loosen the arc-shaped rain cover.

[0053] With reference to Figure 4 and Figure 6 , the clamping portion 41 can include a first clamping portion 411, a second clamping portion 412, and a connecting portion 413. The first clamping portion 411, the connecting portion 413, and the second clamping portion 412 are sequentially connected to form an arch shape. The connecting portion 413 is used to abut against the top edge 13, and the first clamping portion 411 and the second clamping portion 412 respectively abut against the inner wall and the outer wall of the tower flange 3. In this way, the clamping portion 41 is used to press and fix the arc-shaped rain cover 2 on the tower flange 3. In a windy scenario, the clamping portion 41 can avoid the problem that the arc-shaped rain cover 2 is blown away, and improve the installation stability of the rain cover.

[0054] In the embodiment, the connecting portion 413 is used to abut against the top edge 13, and the first clamping portion 411 and the second clamping portion 412 are respectively used to abut against the inner wall and the outer wall of the tower flange 3.

[0055] Figure 7 and Figure 8Two clamping parts provided by the embodiments of the present application are used to fix the arc-shaped rain cover on the flange of the tower drum.

[0056] In other embodiments, referring to Figure 7 , the first clamping part 411 and the second clamping part 412 can be used to abut against the first side edge part 11 and the second side edge part 12 respectively, and the connecting part 413 can not abut against the top edge part 13, that is, only through the clamping of the first clamping part 411 and the second clamping part 412, the first side edge part 11 and the second side edge part 12 of the arc-shaped rain cover are fixed on the inner wall and the outer wall of the flange 3 of the tower drum.

[0057] Alternatively, referring to Figure 8 , the first clamping part 411 and the second clamping part 412 can be used to abut against the first side edge part 11 and the second side edge part 12 respectively, and the connecting part 413 abuts against the top edge part 13, that is, not only through the first clamping part 411 and the second clamping part 412 to realize the clamping and fixing of the first side edge part 11 and the second side edge part 12 on the inner wall and the outer wall of the flange 3 of the tower drum, but also through the connecting part 413 to realize the pressing and fixing of the top edge part 13.

[0058] In some embodiments, the fastener can further include an abutting part (not shown in the figure) between the clamping part and the first side edge part and / or between the clamping part and the second side edge part, and the locking part rotates in the first direction to make the abutting part abut against the first side edge part and / or the second side edge part. In this way, the abutting part can act as a buffer material between the arc-shaped rain cover and the clamping part, avoiding the problem that the clamping force of the clamping part is too large to cause the arc-shaped rain cover to be clamped and broken.

[0059] In some embodiments, the arc-shaped rain cover 2 includes a rubber arc-shaped rain cover, which has high flexibility. On the one hand, it can facilitate the transportation of the arc-shaped rain cover 2, and on the other hand, the curvature of the arc-shaped rain cover 2 can be adjusted to be suitable for tower drum flanges 3 of different diameters and sizes.

[0060] In other embodiments, the arc-shaped rain cover 2 can also be a plastic arc-shaped rain cover, for example, a plastic material such as polyvinyl chloride (PVC).

[0061] Referring to Figure 4In some embodiments, the first side edge portion 11 can have a plurality of protruding structures (not shown in the figure) facing the inner wall surface of the tower flange 3; or the second side edge portion 12 can have a plurality of protruding structures facing the outer wall surface of the tower flange 3; or both the first side edge portion 11 and the second side edge portion 12 can have a plurality of protruding structures facing the inner wall surface of the tower flange 3 and the outer wall surface of the tower flange 3, respectively. The protruding structures can increase the friction between the first side edge portion 11 and the inner wall of the tower flange 3, or increase the friction between the second side edge portion 12 and the outer wall of the tower flange 3, which can help to improve the stability of the arc-shaped rain cover 2 installed on the tower flange 3.

[0062] In some embodiments, when the arc-shaped rain cover 2 is not installed on the tower flange 3, the distance between the first side edge portion 11 and the second side edge portion 12 is smaller than the distance between the inner wall and the outer wall of the tower flange 3, i.e., the distance between the first side edge portion 11 and the second side edge portion 12 is smaller than the thickness of the tower flange 3. In this way, after the arc-shaped rain cover 2 is arranged on the tower flange 3, the first side edge portion 11 and the second side edge portion 12 directly clamp the tower flange 3 to improve the stability of the arc-shaped rain cover 2 installed on the tower flange 3.

[0063] Reference Figure 1 and Figure 3 In the present embodiment, the rain cover 1 is taken as an example of being composed of 8 arc-shaped rain covers 2, which does not constitute a limitation on the number of arc-shaped rain covers 2 corresponding to a single rain cover 1. In other embodiments, the rain cover can be composed of 2-8 arc-shaped rain covers, specifically 2, 3, 4, 5, 6, 7, or 8. The rain cover can be composed of 2-8 arc-shaped rain covers, which can be beneficial for the transportation of the arc-shaped rain covers, and can also be beneficial for the manual installation and disassembly of workers.

[0064] In some embodiments, the length of a single arc-shaped rain cover 2 in the circumferential direction of the tower flange 3 ranges from 1.3 m to 1.8 m, specifically 1.3 m, 1.4 m, 1.5 m, 1.6 m, 1.7 m, or 1.8 m. The weight of a single arc-shaped rain cover 2 can range from 1 kg to 3 kg, specifically 1 kg, 1.2 kg, 1.5 kg, 1.8 kg, 2 kg, 2.3 kg, 2.6 kg, 2.9 kg, or 3 kg, etc. The length and weight of a single arc-shaped rain cover 2 are both within appropriate ranges, which can be beneficial for the manual installation and disassembly of workers.

[0065] The rainproof ring 1 provided by the embodiments of the present application can realize butt joint operation of the upper section tower tube in a light rain scene, and improve the installation efficiency of the wind turbine generator. In the installation process of the segmented tower tube, the top of the upper section tower tube can be hoisted through the rain shield to avoid rain on the top of the upper section tower tube; in the lower section tower tube, the rainproof ring 1 is installed on the tower flange 3 at the top of the lower section tower tube through manual installation by the worker, to avoid water accumulation on the top surface of the tower flange 3 at the top of the lower section tower tube after raining; further, when the upper section tower tube is hoisted to the upper side of the lower section tower tube, the top surface of the lower section tower tube is shielded by the upper section tower tube, at this time, the top of the lower section tower tube will not be rained, and after the rainproof ring 1 is manually disassembled by the worker, the butt joint and installation of the upper section tower tube and the lower section tower tube are completed.

[0066] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for implementing the present application, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the present application. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, therefore, the protection scope of the present application should be limited by the scope defined in the claims.

Claims

1. A rain shield ring for mounting on top of a tower section flange, characterized by, The application relates to a rainproof ring for a tower. The rainproof ring comprises a plurality of arc-shaped rainproof covers, each of which comprises a top edge, a first side edge and a second side edge, the first side edge and the second side edge being connected to the two opposite sides of the top edge respectively; The top edge is arranged on the top surface of the flange of the tower cylinder, the first side edge is arranged on the inner wall of the flange of the tower cylinder, and the second side edge is arranged on the outer wall of the flange of the tower cylinder; The plurality of arc-shaped rainproof covers are connected in sequence to form the rainproof ring.

2. The rain deflector ring of claim 1, wherein The end of one arc-shaped rainproof cover is sleeved on the end of another adjacent arc-shaped rainproof cover.

3. The rain deflector ring of claim 1, wherein The end of one arc-shaped rainproof cover abuts against the end of another adjacent arc-shaped rainproof cover.

4. A rain deflector ring according to claim 2 or 3, characterised in that The rainproof ring further comprises a plurality of fasteners, each of which is sleeved on the joint of two adjacent arc-shaped rainproof covers, and the two ends of the fastener can be clamped to fix the arc-shaped rainproof covers or can be opened to release the arc-shaped rainproof covers. The fastener comprises a clamping portion and a locking portion, the clamping portion is arranged on the inner wall and the outer wall of the flange of the tower cylinder, the locking portion is arranged at the end of the clamping portion on the inner wall of the flange of the tower cylinder, the locking portion is rotated in a first direction to clamp the two ends of the clamping portion, the locking portion is rotated in a second direction to release the two ends of the clamping portion, and the first direction is opposite to the second direction.

5. The rain deflector ring of claim 4, wherein The fastener further comprises an abutting portion, the abutting portion is arranged between the clamping portion and the first side edge and / or between the clamping portion and the second side edge, and the locking portion is rotated in a first direction to abut against the first side edge and / or the second side edge.

6. The rain deflector ring of claim 5, wherein The clamping portion comprises a first clamping portion, a second clamping portion and a connecting portion, the first clamping portion, the connecting portion and the second clamping portion are connected in sequence to form an arch shape, the connecting portion is arranged to abut against the top edge, and / or the first clamping portion and the second clamping portion are arranged to abut against the first side edge and the second side edge respectively.

7. The rain deflector of claim 5, wherein The top edge is protruded away from the top surface of the flange of the tower cylinder.

8. The rain deflector of claim 1, wherein The arc-shaped rainproof cover comprises a rubber arc-shaped rainproof cover.

9. The rain deflector of claim 1, wherein The first side edge is provided with a plurality of protruding structures on the surface facing the inner wall of the tower cylinder, and / or the second side edge is provided with a plurality of protruding structures on the surface facing the outer wall of the tower cylinder.

10. The rain deflector of claim 1, wherein ​

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