Device for protecting an oil collecting bottle of the rotor blades of a wind turbine from falling off

Abstract

Device for protecting an oil collecting bottle of the rotor blades of a wind turbine from falling off, characterized in that it comprises an oil collecting bottle (100), a docking mechanism (200) arranged on the oil collecting bottle (100), an external mechanism (300) arranged on the docking mechanism (200), and an anti-fall mechanism (400) arranged between the docking mechanism (200) and the external mechanism (300); wherein the external mechanism (300) comprises a cover body (301) arranged on the top of the docking mechanism (200) and further comprises a positioning element (302) arranged on the bottom of the cover body (301); and wherein the anti-drop mechanism (400) comprises a holding element (401) arranged on the external mechanism (300) and a contact element (402) arranged on the holding element (401).

Description

TECHNICAL FIELDThe present invention relates to the technical field of wind turbines, in particular to a device for protecting an oil sump of the rotor blades of a wind turbine from falling off.PRIOR ARTThe hub of the wind turbine is the core piece of the wind turbine generator. The hub of the wind turbine needs a timely oil refill during operation, but a long oil refill results in an increase of the used oil in the bearing, which is not conducive to stable operation of the bearing, so that it is necessary to regularly discharge the used oil from the bearing and refill new oil to maintain the quality of the oil on the transmission. in the actual operation process, the discharged used oil is collected by the oil collection bottle and transferred to the outside by the oil collection bottle after completion of the collection, in this process the oil collection bottle is located on one side inside the hub of the wind turbine, in the operation process the hub of the wind turbine drives the oil collection bottle to a circular motion at the edge of the hub around the center of the hub; when the bottle cap of the oil receiving bottle rotates, the bottle cap of the oil receiving bottle will fall due to the slight vibration and rotation of the oil receiving bottle;On the basis of this, a device for protecting an oil sump from dropping is developed, which is suitable for use in a rotating and slightly vibrating environment, in order to solve the problem that the sump cap of the oil sump in the hub of a wind turbine can drop easily.CONTENT OF THE PRESENT INVENTIONThe purpose of this section is to skip some aspects of the embodiments of the present invention and to introduce some preferred embodiments briefly. In this section, as well as the summary of the description of the present application and the name of the description, some simplifications or omissions may be made to avoid obscuring the purpose of this section, as well as the summary of the description and the name of the description and the like, and these simplifications or omissions may not be used to limit the scope of the present invention. In view of the above-described problems or the problems in the prior art that the bottle cap of the oil collection bottle in the hub of a wind turbine can easily fall off, the present invention is developed.Due to this, it is a purpose of the present invention to provide a device for protecting an oil sump of the rotor blades of a wind turbine from falling off.To solve the above technical problems, the present invention uses a following technical solution: an apparatus for protecting an oil sump of rotor blades of a wind turbine from dropping, comprising an oil sump, a docking mechanism disposed on the oil sump, an external mechanism disposed on the docking mechanism, and an anti-dropping mechanism disposed between the docking mechanism and the external mechanism; wherein the external mechanism comprises a cover body disposed on the top of the docking mechanism and further comprises a positioning member disposed on the bottom of the cover body; and wherein the anti-dropping mechanism comprises a holding member disposed on the external mechanism and a contact member disposed on the holding member.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the docking mechanism comprises a docking tube arranged on the oil collection bottle as well as a snap-fit connection groove and a receiving surface arranged on the docking tube.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the positioning element comprises an installation ring arranged at the bottom of the cover body, a sealing sleeve arranged at the bottom of the installation ring and a clamping ring arranged at the bottom of the sealing sleeve.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the cross section of the clamping ring is gradually widened from top to middle and gradually narrowed from middle to bottom of the cross section of the clamping ring, wherein the bottom of the cross section of the clamping ring is "V"-shaped, and wherein a bulge surface is arranged on the inside of the clamping ring, and wherein the outer wall of the oil collection bottle abuts the bulge surface of the inside of the clamping ring, and wherein a gap is provided between the bottom of the clamping ring and the outer wall of the oil collection bottle.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the positioning element further comprises an edge groove and crush groove provided on the installation ring, a rotating handle arranged on the edge groove and an arc strip arranged on the bottom of the rotating handle, wherein a positioning groove is provided on the arc strip.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the snap-connection grooves are provided in a number of more than 1, wherein the plurality of snap-connection grooves are distributed in an annular array on the docking tube, and wherein the number of arc strips is twice as large as the number of snap-connection grooves, and wherein the arc strips are distributed in an annular array on the bottom of the handle.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the holding element comprises a plurality of docking grooves provided on the inner wall of the installation ring, wherein an outer surface is provided on the bottom of the docking groove, which outer surface is associated with the receiving surface, and wherein an inner surface is provided on a side of the bottom of the docking groove facing the outer surface, and wherein a shaft rod is arranged in the interior of the docking groove.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the plurality of docking grooves and the plurality of snap-connection grooves correspond one-to-one, wherein the receiving surface lies in the same plane as the outer surface, and wherein the outer surface intersects with the inner surface, and wherein the intersection point is curved.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the contact element comprises a contact plate arranged on the shaft rod, wherein a through hole is provided in the middle of the contact plate, wherein an upper groove is provided on a side of the through hole facing away from the shaft rod, and wherein an upper plate is arranged on the upper side on a side of the contact plate facing towards the shaft rod.A preferred solution of the device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling according to the present invention is that the contact element further comprises a return groove provided on the crush groove as well as a receiving plate and a return rubber band arranged on the return groove, wherein a translation round rod is arranged between the return rubber band and the return groove.The device for protecting an oil sump of the rotor blades of a wind turbine from dropping according to the present invention has the following advantages: with the arrangement of the present invention, the cover body can be effectively protected from dropping, and in the rotating environment, a double-layered anti-dropping structure is used in conjunction with a threaded structure to improve stability; with the arrangement of the tension ring, the sealing of the cover body can be improved, with the arrangement of the contact plate, the snap-connection groove and the docking groove can be simultaneously connected to avoid their rotation; By not rotating the docking groove and the snap-fit groove, the cover body can be effectively protected from dropping, with the arrangement of the docking groove, the contact plate can be effectively restricted, at the same time, a large part of the contact plate can be caused to be in the docking groove, and the contact plate cooperates with the shaft rod to effectively restrict the contact plate more effectively.BRIEF DESCRIPTION OF THE DRAWINGSIn order to more clearly explain the technical solution in the embodiments of the present invention, the figures to be used in the explanation of the embodiments will be briefly presented below. Obviously, the figures described below show only some embodiments of the present invention. One of ordinary skill in the art can obtain other figures based on the figures without having any curative work. FIG. 1 shows a schematic diagram of a curved bottle body of a device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling off. FIG. 2 is a schematic diagram showing the structure of an external mechanism of a device for protecting an oil sump of the rotor blades of a wind turbine from falling off. FIG. 3 shows a schematic diagram of the cross section of an external mechanism of a device for protecting an oil sump of the rotor blades of a wind turbine from falling off. FIG. 4 shows an enlarged view of the dashed circle field according to FIG. 4. FIG. 5 shows an enlarged view of the location A according to FIG. 4. FIG. 6 shows a schematic diagram of the structure of a positioning element of a device for protecting an oil sump of the rotor blades of a wind turbine from falling off. FIG. 7 shows a schematic diagram of the structure of a contact element of a device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling off. FIG. 8 shows a schematic diagram of an arc strip of a device for protecting an oil catch bottle of the rotor blades of a wind turbine before dropping. FIG. 9 shows a schematic diagram of a cylindrical bottle body of a device for protecting an oil collection bottle of the rotor blades of a wind turbine from falling off. FIG. 10 shows a schematic diagram of a column-shaped bottle body with a toothed cross section of a device for protecting an oil collecting bottle of the rotor blades of a wind turbine from falling off.DETAILED DESCRIPTIONHereinafter, the detailed embodiment of the present invention will be described in more detail in conjunction with the drawings of the specification in order that the purpose, features and advantages of the present invention may be more clearly and easily understood.In the following discussion, many specific details are set forth in order to fully understand the present invention, but the present invention may be implemented in other ways than those described herein, and those skilled in the art may make similar derivatives without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.Next, reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in various places in this specification are not intended to be the same as or an embodiment that is independent or selective of other embodiments.Embodiment 1: see Figs. 1 to 7, is a first embodiment of the present invention, which embodiment provides a device for protecting an oil sump 100 of the rotor blades of a wind turbine from dropping, comprising an oil sump 100, a docking mechanism 200 arranged on the oil sump 100, an external mechanism 300 arranged on the docking mechanism 200, and an anti-dropping mechanism 400 arranged between the docking mechanism 200 and the external mechanism 300, with the arrangement of the anti-dropping mechanism 400, it can be ensured that the cover body 301 is held above the oil sump 100 to restrict the oil in the oil sump 100, which ensures that the collected oil is inside the bottle body at all times to prevent the leakage and prevent it, In the rotation process of the bottle body around the hub, the cover body 301 falls off as compared with the existing threaded connection, the cover body can be effectively restricted to prevent oil leakage; the external mechanism 300 includes a cover body 301 disposed on the top of the docking mechanism 200, and further includes a positioning member 302 disposed on the bottom of the cover body 301; wherein the anti-fall mechanism 400 includes a holding member 401 disposed on the external mechanism 300 and a contact member 402 disposed on the holding member 401.In particular, with reference to FIGS. 1, 8, and 9, the oil collection bottle 100 may be a cylindrical bottle, a curved bottle, or a columnar bottle having a toothed cross section, with the arrangement of the oil collection bottle 100, the oil collection bottle 100 can be better placed in the hub of the wind turbine, the columnar shape having a toothed cross section can effectively prevent the rotation of the oil collection bottle 100, which is a preferred shape; Referring to FIGS. 1 to 7, with the arrangement of the external mechanism 300, the anti-waste mechanism may be effectively restricted to prevent the anti-waste mechanism 400 from failing during operation and always to allow the cover body 301 to be connected to the oil sump 100, and with the arrangement of the holding member 401, the contact member 402 may be effectively restricted to prevent leakage during rotation thereof.The docking mechanism 200 includes a docking tube 201 disposed on the oil collection bottle 100, and a snap-fit groove 202 and a receiving surface 203 disposed on the docking tube 201.Further, the docking tube 201 may be made of rubber, and the rubber material of the docking tube 201 may effectively avoid direct sealing with the rigid oil sump 100, effectively improve sealing performance under vibration and rotation, and effectively connect the cover body 301 and the oil sump 100 in cooperation with the anti-waste mechanism 400.In summary, the matching of a plurality of bottle shapes to different bosses can effectively receive the oil from the boss bearing, and with the arrangement of the contact member 402, it can be effectively prevented that the oil collection bottle 100 separates from the cover body 301.Embodiment 2: see FIGS. 2 to 8, is a second embodiment of the present invention, which differs from the previous embodiment in an external mechanism 300, wherein the external mechanism 300 comprises a cover body 301 disposed on the top of the docking mechanism 200 and further comprises a positioning member 302 disposed on the bottom of the cover body 301; and wherein the positioning member 302 comprises an installation ring 302 adisposed on the bottom of the cover body 301, a seal sleeve 302 bdisposed on the bottom of the installation ring 302 a, and a tension ring 302 cdisposed on the bottom of the seal sleeve 302 b.Specifically, the cross section of the cover body 301 is formed in an "n" shape, the cover body 301 can be made of rubber, and the cover body 301 made of rubber can be better fitted to the docking pipe 201 and play a better sealing role, with the arrangement of the positioning member 302, the anti-waste mechanism 400 can be effectively restricted to effectively position the anti-waste mechanism to the docking pipe 201, with the arrangement of the installation ring 302 a, the grip can be restricted, the grip is rotatably connected to the installation ring 302 a, with the arrangement of the sealing ring, the sealing between the docking pipe 201 and the cover body 301 can be effectively improved, and with the arrangement of the clamping ring 302 c, the sealing between the cover body 301 and the lower portion of the docking pipe 201 can be improved.The cross section of the clamp ring 302 cis gradually expanded from top to center from top to bottom, and gradually narrowed from center to bottom of the cross section of the clamp ring 302 c, wherein the bottom of the cross section of the clamp ring 302 cis formed in a "V" shape, and wherein a bulging surface 302 dis disposed on the inside of the clamp ring 302 c, and wherein the outer wall of the oil sump 100 abuts on the bulging surface 302 dof the inside of the clamp ring 302 c, and wherein a gap is provided between the bottom of the clamp ring 302 cand the outer wall of the oil sump 100. Further, the presence of a gap between the outer walls of the oil sump 100 allows the cover body 301 to be effectively resisting upon screwing into the docking tube 201 to prevent it from being rolled inward and thereby impairing the progress of screwing; the bulging surface 302 dis contacted with the lower chamfered portion of the docking tube 201 to effectively raise the tension ring 302 cto allow the tension ring 302 cto deploy, the bulging surface 302 dof the tension ring 302 cis engaged with the docking tube 201 to achieve better sealing, and the presence of a gap between the bottom of the tension ring 302 cand the outer wall of the oil sump 100 can reserve a downward movement path of the tension ring 302 cto prevent tipping and rolling.The positioning member 302 further includes a peripheral groove 302e and a pinch groove 302f provided on the installation ring 302a, a rotating handle 302g provided on the peripheral groove 302e, and an arc strip 302h provided on the bottom of the rotating handle 302g, and a positioning groove 302i is provided on the arc strip 302h. The snap-fit grooves 202 are provided in a number greater than 1, the plurality of snap-fit grooves 202 are distributed in an annular array on the docking tube 201, and the number of arc strips 302 his twice as large as the number of snap-fit grooves 202, and the arc strips are distributed in an annular array on the bottom of the handle 302 g.Preferably, with the arrangement of the positioning member 3092, the anti-falling mechanism 400 can be effectively restricted, with the arrangement of the edge groove 302 e, the rotating handle 302 gcan be effectively restricted, with the arrangement of the arc strip 302 h, the rotating handle 302 gcan be restricted, at the same time, the arc strip can be pressed against the contact plate 402 a, with the arrangement of the contact plate 402 a, the docking pipe 201 and the cover body 301 can be effectively restricted to restrict the cover body 301, the positioning groove 302 iis in contact with the translation round bar 402 hlocated on the installation ring 302 ato effectively restrict the rotating handle 302 gafter the rotating handle 302 ghas been restricted, it can effectively restrict the contact plate 402 ato achieve the purpose of preventing falling.Other structures are the same as in Embodiment 1.In use, the top cover is screwed and screwed into the docking tube 201, now the docking groove 401a is associated with the docking groove 401a, and the rotating handle 302g is rotated at this time and drives the contact plate 402a in the anti-waste mechanism 400 to enter between the snap-fit connection groove 202 and the docking groove 401a, now the anti-waste function can be achieved. In summary, with the arrangement of a plurality of contact plates 402 a, the cover body 301 can be effectively restricted, the cover body 301 made of rubber material can be better fitted to the docking pipe 201 to achieve better sealing, and with the arrangement of the positioning member 302, the anti-waste mechanism 400 can be effectively restricted to better position the anti-waste mechanism 400 to the docking pipe 201.Embodiment 3: see Figs. 1 to 10, is a third embodiment of the present invention, which differs from the previous embodiment by a holding member 401, wherein the holding member 401 comprises a plurality of docking grooves 401a provided on the inner wall of the installation ring 302a, wherein an outer surface 401b associated with the receiving surface 203 is provided on the bottom of the docking groove 401a, and wherein an inner surface 401c is provided on a side of the bottom of the docking groove 401a facing the outer surface 401b, and wherein a shaft rod 401d is disposed inside the docking groove 401a. The plurality of docking grooves 401 aand the plurality of snap-fit grooves 202 correspond one-to-one, where the receiving surface 203 lies in the same plane as the outer surface 401 b, and where the outer surface 401 bintersects with the inner surface 401 c, and where the intersection point is curved, whereby the contact plate 402 acan be effectively restricted.In particular, with the arrangement of the docking groove 401 a, the contact plate 402 acan be effectively limited, at the same time, a large part of the contact plate 402 acan be allowed to lie inside the docking groove 401 a, the contact plate 402 acooperates with the shaft rod 401 dto effectively limit the contact plate better, the number of docking grooves 401 ais not less than 3 and can be 6 or 8, with the arrangement of the inner surface 401 c, the angle of the contact plate 402 acan be effectively guided, and the inner surface 401 cmay guide the contact plate 402 ain the reverse direction.The contact element 402 comprises a contact plate 402 aarranged on the shaft rod 401 d, wherein a through hole 402 bis provided in the middle of the contact plate 402 a, wherein an upper groove 402 cis provided on a side of the through hole 402 bfacing away from the shaft rod 401 d, and wherein an upper plate 402 dis arranged on the upper side on a side of the contact plate 402 afacing the shaft rod 401 d. The contact member 402 further includes a reset groove 402 eprovided on the crush groove 302 f, and a receiving plate 402 fand a reset rubber band 402 garranged on the reset groove 402 e, wherein a translation round bar 402 his arranged between the reset rubber band 402 gand the reset groove 402 e.At this time, with the arrangement of the contact plate 402a, the snap-fit groove 202 and the docking groove 401a can be simultaneously connected to prevent their rotation; since the docking groove 401a and the snap-fit groove 202 do not rotate, the cover body 301 can be effectively prevented from dropping, with the arrangement of the reset rubber band 402g, the translation round bar 402h can be effectively driven to reset when the translation round bar 402h comes into contact with the receiving plate 402f, the person applying a force can be alerted to the state of the inside of the device.Other structures are the same as in Embodiment 2.In use, the rotating handle 302g is rotated after the rotating handle 302g is rotated, the arcuate strip 302h can be moved to the translation round bar 402h after the arcuate strip 302h is pressed against the translation round bar 402h, the translation round bar is moved into the positioning groove 302i as shown in Fig. 7, now the rotating handle 302g is restricted, and a force is applied for a larger rotation, then the translation round bar 402h crosses over the positioning groove 302i, and the arcuate strip 302h crosses over the translation round bar 402h, during the further rotation, the translation round bar 402h is pressed against the arcuate strip 302h, and it is felt that the force applied needs to be increased; now, the trailing end of an arcuate strip 302h is traversed, When the curved strip 302 his adjacent to the joint to the translation round bar 402 h, moved out of the range of the upper plate 402 d, the upper plate 402 dmay be moved, the cover body 301 is rotated, and when the cover body 301 is rotated, the contact plate 402 ais thrown into the inner surface 401 cof the docking groove 401 aunder the centrifugal force, the shaft bar 401 dis contacted with the upper groove 402 c, now the upper cover can be smoothly screwed in, after screwing in, the rotating handle 302 gis further rotated when the rotating handle 302 gis rotated, it drives the curved strip 302 hto rotate when the curved strip 302 his rotated, it drives the upper plate 402 dto move, At the same time, the top plate 402d contacts the joint between the inner surface 401c and the outer surface 401b and moves, the curved strip 302h drives the top plate 402d and the contact plate 402a to enter the receiving surface 203 after the curved strip 302h is pressed against the translation round bar 402h, the translation round bar is moved into the positioning groove 302i at this time, simultaneously, the top cover of the docking tube 201 is restricted;In the operation process of the apparatus, the rotating handle 302 grotates under an external force, resulting in a movement of the arc strip 302 hafter the arc strip 302 his moved, drives the translation round bar 402 hto separate from the positioning groove 302 i, now only the contact plate 402 ais reserved, and the anti-waste function still exists; when the oil sump bottle 100 rotates, the contact plate 402 aalso rotates around the axis center of the hub, and when the plurality of contact plates 402 arotates, they wobble back and forth in the docking groove 401 aand the snap connection groove 202 regardless of how they wobble, the uppermost contact plate 402 aof the at least three contact plates 402 amay always have a fixing action.In summary, with the arrangement of the docking groove 401 a, the contact plate 402 acan be effectively confined, at the same time, a large part of the contact plate 402 acan be allowed to be inside the docking groove 401 a, the contact plate 402 acooperates with the shaft rod 401 dto effectively confine the contact plate 402 a better.It should be understood that the structure and arrangement of the present application, which are shown in a number of different exemplary embodiments, are exemplary only. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those consulting this disclosure that many adaptations are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., size, scale, construction, shape and proportions of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, change in orientation, etc.). For example, elements shown as being integral may be made up of multiple parts or elements, the position of the elements may be reversed or otherwise varied, and the type or number or position of the individual elements may be varied or varied. Therefore, all such adaptations should be included within the scope of the present invention. The order or sequence of method or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause should cover structures that perform the functions described herein, both structural equivalence and equivalent structures. Other substitutions, adaptations, changes, and omissions may be made in the construction, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. The present invention is therefore not limited to a particular embodiment, but extends to a broad range of adaptations still falling within the scope of the appended claims.To provide a brief description of the exemplary embodiment, not all features of the actual embodiment may be described (i.e., those features not relevant to the best mode of the invention currently under consideration or those features not relevant to the practice of the invention).It will be appreciated that during the development of a practical embodiment, such as an engineering or design project, a large number of specific implementation decisions may be made. Such development effort may be complex and time consuming, but to those skilled in the art having benefit of this disclosure, without great experimentation, this development effort becomes a routine practice in design, manufacture, and production.It should be noted that the above embodiments are only for explaining the technical solution of the present invention, rather than limiting it. Although the present invention will be explained in more detail in connection with preferred embodiments, those skilled in the art should understand that they can change or equivalently replace the technical solutions of the present invention without departing from the spirit and scope of the technical solution of the present invention, and these changes or equivalent substitutions should be considered to be covered by the scope of the claims of the present invention.

Claims

An apparatus for protecting an oil collection bottle of the rotor blades of a wind turbine from dropping, characterized in that it comprises an oil collection bottle (100), a docking mechanism (200) arranged on the oil collection bottle (100), an external mechanism (300) arranged on the docking mechanism (200), and an anti-dropping mechanism (400) arranged between the docking mechanism (200) and the external mechanism (300); wherein the external mechanism (300) comprises a cover body (301) arranged on the top of the docking mechanism (200) and further comprises a positioning member (302) arranged on the bottom of the cover body (301); and wherein the anti-dropping mechanism (400) comprises a holding member (401) arranged on the external mechanism (300) and a contact member (402) arranged on the holding member (401).The device for protecting an oil collection bottle of the rotor blades of a wind turbine from dropping according to claim 1, characterized in that the docking mechanism (200) comprises a docking tube (201) arranged on the oil collection bottle (100), as well as a snap-fit connection groove (202) and a receiving surface (203) arranged on the docking tube (201).The device for protecting an oil sump of the rotor blades of a wind turbine from dropping according to claim 2, characterized in that the positioning element (302) comprises an installation ring (302a) arranged at the bottom of the cover body (301), a sealing sleeve (302b) arranged at the bottom of the installation ring (302a), and a clamping ring (302c) arranged at the bottom of the sealing sleeve (302b).The device for protecting an oil collection bottle of the rotor blades of a wind turbine from dropping according to claim 3, characterized in that the cross section of the tension ring (302c) is gradually expanded from top to center and gradually narrowed from center to bottom of the cross section of the tension ring (302c), wherein the bottom of the cross section of the tension ring (302c) is formed in a "V" shape, and wherein a bulging surface (302d) is disposed on the inside of the tension ring (302c), and wherein the outer wall of the oil collection bottle (100) abuts on the bulging surface (302d) of the inside of the tension ring (302c), and wherein a gap is provided between the bottom of the tension ring (302c) and the outer wall of the oil collection bottle (100).The device for protecting an oil sump of the rotor blades of a wind turbine from dropping according to claim 4, characterized in that the positioning member (302) further comprises an edge groove (302e) and a crush groove (302f) provided on the installation ring (302a), a rotating handle (302g) provided on the edge groove (302e), and an arc strip (302h) provided on the bottom of the rotating handle (302g), wherein a positioning groove (302i) is provided on the arc strip (302h).The device for protecting an oil trap of the rotor blades of a wind turbine from dropping according to claim 5, characterized in that the snap-connection grooves (202) are provided in a number of more than 1, wherein the plurality of snap-connection grooves (202) are distributed in an annular array on the docking tube (201), and wherein the number of arc stripes (302h) is twice as large as the number of snap-connection grooves (202), and wherein the arc stripes are distributed in an annular array on the bottom of the handle (302g).Device for protecting an oil collection bottle of the rotor blades of a wind turbine from dropping according to claim 6, characterized in that the retaining element (401) comprises a plurality of docking grooves (401a) provided on the inner wall of the installation ring (302a), wherein an outer surface (401b) associated with the receiving surface (203) is provided on the bottom of the docking groove (401a), and wherein an inner surface (401c) is provided on a side of the bottom of the docking groove (401a) facing the outer surface (401b), and wherein a shaft rod (401d) is arranged in the interior of the docking groove (401a).The device for protecting an oil sump of the rotor blades of a wind turbine from dropping according to claim 7, characterized in that the plurality of docking grooves (401a) and the plurality of snap-connection grooves (202) correspond one-to-one, wherein the receiving surface (203) lies in the same plane as the outer surface (401b), and wherein the outer surface (401b) intersects with the inner surface (401c), and wherein the intersection point is curved.Device for protecting an oil collection bottle of the rotor blades of a wind turbine from dropping according to claim 8, characterised in that the contact element (402) comprises a contact plate (402a) arranged on the shaft rod (401d), wherein a through hole (402b) is provided in the centre of the contact plate (402a), wherein an upper groove (402c) is provided on a side of the through hole (402b) facing away from the shaft rod (401d), and wherein an upper plate (402d) is arranged on the upper side on a side of the contact plate (402a) facing the shaft rod (401d).The device for protecting an oil collection bottle of the rotor blades of a wind turbine from dropping according to claim 9, characterized in that the contact element (402) further comprises a return groove (402e) provided on the crush groove (302f), as well as a receiving plate (402f) and a return rubber band (402g) arranged on the return groove (402e), wherein a translation round rod (402h) is arranged between the return rubber band (402g) and the return groove (402e).

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