Folding paddle device and aircraft

Abstract

The utility model provides a folding paddle device and an aircraft. The folding paddle device comprises a shell and paddles; the shell comprises two clamping plates which are arranged at intervals in the first direction, and assembling parts are formed in the matched connection areas of the clamping plates and the paddles; a containing cavity is formed between the two clamping plates, a shaft column is arranged in the containing cavity, and the shaft column extends in the first direction and is connected with the assembling parts of the two clamping plates; one end of each paddle is provided with an assembly hole, and the paddles are sleeved on the shaft column through the assembly holes; elastic pieces are arranged between the blades and the clamping plates and located in the containing cavities, one ends of the elastic pieces abut against the blades, and the other ends of the elastic pieces abut against the assembling parts. Through the structural design, the folding paddle device can provide better capability of absorbing dimensional tolerance of the component by utilizing a certain elastic coefficient of the elastic piece, and the consistency of friction torque during rotation of the folding paddle device is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of aircraft, and particularly to a folding propeller device and an aircraft. Background Art

[0002] For aircraft adopting a folding propeller solution, there is a common problem that when the propeller blades rotate, the frictional torque is uneven due to the dimensional tolerances of various parts.

[0003] For the above problem, an existing solution includes: adjusting the pressure of the propeller clamp on the propeller blade by adjusting the torque of the locking screw, and then adjusting the rotational frictional force of the propeller blade. However, the torque of the locking screw method adopted in the above solution cannot be guaranteed to be a fixed value uniformly. If it is necessary to ensure this fixed value, it is necessary to adjust the screw torque while measuring the frictional force, resulting in low production efficiency and high operation difficulty, and it is not suitable for mass production.

[0004] For the above problem, another existing solution includes: absorbing the structural dimensional tolerances by adding a soft rubber structure. Compared with the direct hard contact between the propeller blade and the propeller clamp, since the soft rubber structure is soft and deformable and has a certain ability to absorb tolerances, the soft rubber causes less frictional force fluctuations caused by the dimensional tolerances of the propeller blade. However, since the soft rubber structure must have a certain hardness and the wear resistance performance of the propeller blade during long-term use needs to be considered, therefore, although the soft rubber solution has certain improvement in the ability to resist tolerance fluctuations compared with the hard contact solution between the propeller blade and the propeller clamp, the propeller blade size still needs to ensure high precision. For this existing solution, once the dimensional deviation of the structural parts is large, it will still cause large frictional force fluctuations. At the same time, at different temperatures, the hardness and volume of the soft rubber are different, which will also cause frictional force differences. In addition, since there is no limiting and fixing structure between the various structures in this existing solution, when the propeller blade rotates, the relative movement inside is relatively complex. Since the friction coefficients between various materials are different, when the folding propeller rotates, if the parts generating relative movement cannot be guaranteed to be exactly the same each time, the frictional force during each rotation must be different, resulting in poor frictional force consistency of the above solution. Summary of the Utility Model

[0005] A main object of the present disclosure is to overcome at least one defect of the above-mentioned prior art, and to provide a folding propeller device with a better ability to absorb dimensional tolerances and capable of ensuring a higher consistency of the frictional torque during rotation.

[0006] To achieve the above object, the present disclosure adopts the following technical solutions:

[0007] According to one aspect of the present disclosure, a folding paddle device is provided, wherein: it includes a housing and paddle blades; the housing includes two clamping plates arranged at intervals in a first direction, and an assembly part is formed in the area where the clamping plates are cooperatively connected with the paddle blades; a receiving cavity is formed between the two clamping plates, a shaft column is arranged in the receiving cavity, the shaft column extends along the first direction and connects the assembly parts of the two clamping plates; one end of the paddle blade has an assembly hole, and the paddle blade is sleeved on the shaft column through the assembly hole; an elastic member is arranged between the paddle blade and the clamping plate, the elastic member is located in the receiving cavity, one end of the elastic member abuts against the paddle blade, and the other end abuts against the assembly part.

[0008] According to one embodiment of the present disclosure, the elastic member is arranged between the paddle blade and one of the clamping plates, and there is a hard contact between the paddle blade and the other clamping plate; alternatively, the elastic members are respectively arranged between the paddle blade and the two clamping plates.

[0009] According to one embodiment of the present disclosure, a first gasket is arranged between the clamping plate and the paddle blade, and the clamping plate abuts against the paddle blade through the first gasket; and / or, a first gasket is arranged between the elastic member and the paddle blade, and the elastic member abuts against the paddle blade through the first gasket.

[0010] According to one embodiment of the present disclosure, wherein: the material of the first gasket is Teflon; and / or, the paddle blade and the first gasket are bonded through an adhesive layer.

[0011] According to one embodiment of the present disclosure, the elastic member is a spring; a second gasket is arranged between the paddle blade and the elastic member, the second gasket is sleeved on the shaft column, and the elastic member abuts against the paddle blade through the second gasket; a limiting ring and a guiding ring protruding along the first direction are arranged on one side surface of the second gasket facing the elastic member, and the limiting rings are spaced apart on the outer periphery of the guiding ring; the spring is sleeved on the limiting ring; the guiding ring is wound around the shaft column and is in contact with the shaft column.

[0012] According to one embodiment of the present disclosure, the assembly part is provided with a groove wall extending along the first direction, the groove wall surrounds the shaft column and encloses a receiving groove with the assembly part; the elastic member and the second gasket are located in the receiving groove.

[0013] According to one embodiment of the present disclosure, a retaining wall is arranged on the periphery of a part of the groove wall, a limiting groove extending along the first direction is arranged on one side of the retaining wall facing the shaft column, and the limiting groove communicates with the receiving groove; a limiting protrusion is arranged on the edge of the second gasket, and at least part of the limiting protrusion is located in the limiting groove.

[0014] According to one embodiment of the present disclosure, the two clamping plates are respectively a first clamping plate and a second clamping plate, and the shaft column is integrally formed with the first clamping plate.

[0015] According to one embodiment of the present disclosure, a connection hole is provided in the shaft column, the connection hole extends along the first direction, and at least opens at an end face of the shaft column away from the first clamping plate; the connection hole is connected to the assembly portion of the second clamping plate via a connecting member.

[0016] As can be seen from the above technical solutions, the advantages and positive effects of the folding paddle device proposed by the present disclosure are as follows:

[0017] The folding paddle device proposed by the present disclosure includes a housing and a paddle; the housing includes two clamping plates arranged at intervals along a first direction, and an assembly portion is formed in a region where the clamping plates are in cooperation connection with the paddle; a receiving cavity is formed between the two clamping plates, a shaft column is provided in the receiving cavity, the shaft column extends along the first direction and connects the assembly portions of the two clamping plates; one end of the paddle has an assembly hole, and the paddle is sleeved on the shaft column via the assembly hole; an elastic member is provided between the paddle and the clamping plate, the elastic member is located in the receiving cavity, one end of the elastic member abuts against the paddle, and the other end abuts against the assembly portion. Through the above structural design, the present disclosure can utilize a certain elastic coefficient of the elastic member to provide a better ability to absorb dimensional tolerances of components, and improve the consistency of the frictional torque when the folding paddle device rotates.

[0018] Another main object of the present disclosure is to overcome at least one defect of the above-mentioned prior art, and provide an aircraft including the above-mentioned folding paddle device.

[0019] To achieve the above object, the present disclosure adopts the following technical solutions:

[0020] According to another aspect of the present disclosure, there is provided an aircraft, which includes the folding paddle device proposed by the present disclosure and described in the above embodiments.

[0021] As can be seen from the above technical solutions, the advantages and positive effects of the aircraft proposed by the present disclosure are as follows:

[0022] The aircraft proposed by the present disclosure can improve the consistency of the frictional torque when the folding paddle device rotates by adopting the folding paddle device proposed by the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By considering the following detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings, various objects, features and advantages of the present disclosure will become more apparent. The drawings are only exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals always represent the same or similar components. Among them:

[0024] Figure 1 Schematic perspective view of a folding paddle device shown according to an exemplary embodiment;

[0025] Figure 2 is Figure 1 the top view of;

[0026] Figure 3 is Figure 1 the enlarged schematic view of part A in;

[0027] Figure 4 is along Figure 2 the sectional view taken along the straight line B - B in;

[0028] Figure 5 is Figure 1 the exploded perspective view of the partial structure of the folding paddle device shown;

[0029] Figure 6 is Figure 5 the schematic perspective view of the first clamping plate shown;

[0030] Figure 7 is Figure 6 the enlarged schematic view of part C in;

[0031] Figure 8 and Figure 9 are respectively Figure 5 the schematic perspective views of the second gasket shown from two different perspectives.

[0032] Explanation of reference numerals is as follows:

[0033] 100. Housing;

[0034] 101. Assembly area;

[0035] 102. Assembly part;

[0036] 103. Retaining wall;

[0037] 1031. Limiting groove;

[0038] 104. Receiving groove;

[0039] 110. First clamping plate;

[0040] 120. Second clamping plate;

[0041] 130. Shaft column;

[0042] 131. Connecting hole;

[0043] 132. Connecting piece;

[0044] 200. Paddle blade;

[0045] 210. Assembly hole;

[0046] 220. First gasket;

[0047] 230. Adhesive layer;

[0048] 300. Elastic member;

[0049] 400. Second gasket;

[0050] 410. Limiting protrusion;

[0051] 420. Limiting ring;

[0052] 430. Guide ring;

[0053] X. First direction. Detailed implementation manners

[0054] Typical embodiments embodying the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various variations in different embodiments, all of which do not depart from the scope of the present disclosure, and the descriptions and drawings therein are for illustrative purposes in nature and not for limiting the present disclosure.

[0055] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure, and in which different exemplary structures, systems, and steps for implementing various aspects of the present disclosure are shown by way of example. It should be understood that other specific solutions of components, structures, exemplary devices, systems, and steps can be used, and structural and functional modifications can be made without departing from the scope of the present disclosure. Moreover, although terms such as "above", "between", "inside", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, for example, according to the directions of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional direction of the structure to fall within the scope of the present disclosure.

[0056] Refer to Figure 1 , which representatively shows a three-dimensional structural schematic diagram of the folding paddle device proposed by the present disclosure, in which the three-dimensional structure of the paddle blade 200 in the folded state is specifically shown. In this exemplary embodiment, the folding paddle device proposed by the present disclosure is described by taking its application to an unmanned aerial vehicle as an example. It is easy for those skilled in the art to understand that, in order to apply the relevant designs of the present disclosure to other types of aircraft, various modifications, additions, substitutions, deletions, or other changes are made to the following specific implementation manners, and these changes are still within the scope of the principle of the folding paddle device proposed by the present disclosure.

[0057] Such as Figure 1As shown, in an embodiment of the present disclosure, the folding paddle device proposed by the present disclosure at least includes a housing 100 and a paddle blade 200. With reference to Figures 2 to 9 , Figure 2 represents and shows Figure 1 the top view of; Figure 3 represents and shows Figure 1 the enlarged schematic view of part A in; Figure 4 represents and shows the cross-sectional view taken along Figure 2 the straight line B-B in; Figure 5 represents and shows the three-dimensional exploded schematic view of part of the structure of the folding paddle device; Figure 6 represents and shows the three-dimensional structure schematic view of the first clamping plate 110; Figure 7 represents and shows Figure 6 the enlarged schematic view of part C in; Figure 8 and Figure 9 respectively represent and show the three-dimensional structure schematic views of the second gasket 400 from two different perspectives. The structures, connection methods, and functional relationships of the main components of the folding paddle device proposed by the present disclosure will be described in detail below with reference to the above-mentioned drawings.

[0058] As in Figures 1 to 5As shown, in an embodiment of the present disclosure, the housing 100 includes two clamping plates arranged at intervals along the first direction X, such as the first clamping plate 110 and the second clamping plate 120 shown in the attached drawings. The area where the clamping plates are cooperatively connected to the blade 200 forms an assembly portion 102. A receiving cavity is formed between the two clamping plates. A shaft column 130 is disposed in the receiving cavity. The shaft column 130 extends along the first direction X and connects the assembly portions 102 of the two clamping plates. For example, the receiving cavity may have an assembly area 101, and the assembly portion 102 of the clamping plate is located in the assembly area 101. The assembly area 101 and the assembly portion 102 are for installing the blade 200. Herein, in this embodiment, it is described by taking the folding blade device including three blades 200 as an example. Then, the receiving cavity has three assembly areas 101, and the clamping plate has three assembly portions 102. One end of the blade 200 has an assembly hole 210. The blade 200 is sleeved on the shaft column 130 through the assembly hole 210, and a part of the blade 200 extends out of the receiving cavity. On this basis, an elastic member 300 is disposed between the blade 200 and the clamping plate. The elastic member 300 is located in the receiving cavity (such as the assembly area 101 of the receiving cavity). One end of the elastic member 300 abuts against the blade 200 (such as the assembly end of the blade 200), and the other end of the elastic member 300 abuts against the assembly portion 102 of the clamping plate. Through the above structural design, the present disclosure can utilize the certain elastic coefficient of the elastic member 300 to provide a better ability to absorb the dimensional tolerance of the component, and improve the consistency of the frictional torque when the folding blade device rotates. Specifically, through the design of the elastic member 300, the present disclosure can achieve a floating cooperation mode between the blade 200 and the clamping plate. And because the elastic member 300 (such as a metal spring) has a larger elastic coefficient than the soft rubber structure adopted in the existing solution, it can absorb a larger range of dimensional tolerances.

[0059] As Figure 4 and Figure 5As shown, in an embodiment of the present disclosure, an elastic member 300 is provided only between the blade 200 and one clamping plate (such as the first clamping plate 110 shown in the attached drawings), and there is a hard contact between the blade 200 and the other clamping plate (i.e., the second clamping plate 120). Through the above structural design, the present disclosure adopts a hard contact between the second clamping plate 120 and the blade 200, which can ensure that the gap between the two does not change due to different assembly operations, facilitating the assembly operation. At the same time, it is beneficial to reduce the number of components and the structural complexity. It should be noted that taking the first direction X as the up and down direction and the first clamping plate 110 being located below the second clamping plate 120 as an example, when the folding blade device rotates to generate lift, the blade 200 will have a tendency to move relatively upward along the shaft column 130 (i.e., away from the first clamping plate 110). In this regard, compared with the embodiment in which elastic members 300 are provided above and below the blade 200 respectively, in this embodiment, a hard contact is adopted between the blade 200 and the upper second clamping plate 120. Accordingly, the upward movement tendency can be resisted by the design of this hard contact, that is, the upward movement of the blade 200 along the shaft column 130 is avoided, so as to prevent the blade 200 from detaching from the lower elastic member 300 due to upward movement. Furthermore, compared with the embodiment in which an elastic member 300 is provided only above the blade 200 (i.e., between the blade 200 and the second clamping plate 120) and a hard contact is adopted between the blade 200 and the first clamping plate 110, this embodiment can also avoid the hard contact between the blade 200 and the first clamping plate 110 from detaching due to upward movement based on the above principle. Accordingly, the elastic member 300 can always be kept in a compressed state to ensure that its two ends always abut against the blade 200 and the first clamping plate 110, ensuring the absorption effect of the elastic member 300 on dimensional tolerances.

[0060] It should be understood that in various possible embodiments that conform to the design concept of the present disclosure, the present disclosure may also provide an elastic member 300 between the blade 200 and the second clamping plate 120. Or, for one blade 200, the present disclosure may provide two elastic members 300, and the two elastic members 300 are respectively located between the blade 200 and the two clamping plates. The specific number and arrangement position of the elastic member 300 can be adjusted according to actual needs, and the abutting state of the two pairs can be ensured by correspondingly adjusting the elastic coefficient, compression amount, etc. of the elastic member 300, and none of them is limited to this embodiment.

[0061] Such as Figure 4 and Figure 5As shown, in an embodiment of the present disclosure, first gaskets 220 may be respectively provided on both side surfaces of the assembly end of the blade 200 in the first direction X. Accordingly, the assembly end of the blade 200 contacts the clamping plate (such as the second clamping plate 120) or the elastic member 300 (indirectly contacts the elastic member 300 via the second gasket 400, for example) via the first gasket 220. A first gasket 220 may be provided between the clamping plate (such as the second clamping plate 120) and the blade 200, and the clamping plate abuts against the blade 200 via the first gasket 220. And / or, a first gasket 220 may be provided between the elastic member 300 and the blade 200, and the elastic member 300 abuts against the blade 200 via the first gasket 220. Through the above structural design, in the whole folding blade device, there is only relative movement between the first gasket 220 and the second clamping plate 120, and between the first gasket 220 and the elastic member 300 (the second gasket 400). Accordingly, compared with the existing solution using a silicone structure, the present disclosure can achieve a simpler relative movement state and will not have the problem that the relative movement states of the parts are uncertain every time the blade 200 rotates. Therefore, the present disclosure not only has a high absorption capacity for part tolerances, but also ensures the consistency of the overall frictional torque of the blade 200 by ensuring the consistency of the relative movement of the internal parts every time it rotates.

[0062] Based on the structural design of the first gasket 220, in an embodiment of the present disclosure, the material of the first gasket 220 may be Teflon.

[0063] As Figure 5 As shown, based on the structural design of the first gasket 220, in an embodiment of the present disclosure, the blade 200 and the first gasket 220 may be bonded via an adhesive layer 230. Through the above structural design, the present disclosure can ensure that the blade 200 and the first gasket 220 rotate simultaneously, so that there is no relative rotation between the first gasket 220 and the blade 200, further simplifying the relative movement state between the relevant parts.

[0064] As Figures 4 to 9As shown, in an embodiment of the present disclosure, the elastic member 300 is a spring. Moreover, a second gasket 400 may be provided between the blade 200 (such as the first gasket 220) and the elastic member 300. The second gasket 400 is sleeved on the shaft column 130, and the elastic member 300 abuts against the blade 200 via the second gasket 400. Among them, a limiting ring 420 and a guiding ring 430 protruding along the first direction X are provided on one side surface of the second gasket 400 facing the elastic member 300. The limiting ring 420 is spaced apart on the outer periphery of the guiding ring 430. Specifically, the spring is sleeved on the limiting ring 420, and the limiting ring 420 can limit the position of the spring in the circumferential direction. The guiding ring 430 is wound around the shaft column 130, and the guiding ring 430 is in contact with the shaft column 130. Accordingly, the guiding ring 430 can extend the contact area between the second gasket 400 and the shaft column 130 in the first direction X to achieve guiding along the first direction X. Through the above structural design, the present disclosure can utilize the second gasket 400 to achieve the limitation and guiding of the elastic member 300.

[0065] As Figures 4 to 7 shown, based on the structural design that the folding blade device includes the second gasket 400, in an embodiment of the present disclosure, the assembly part 102 may be provided with a groove wall extending along the first direction X. The groove wall is arranged around the shaft column 130, and the groove wall and the assembly part 102 enclose a receiving groove 104. The elastic member 300 and the second gasket 400 may be located in the receiving groove 104. For example, one end of the elastic member 300 in the first direction X abuts against the bottom wall of the receiving groove 104. On this basis, one end of the limiting groove 1031 (such as the end relatively close to the first clamping plate 110) may communicate with the receiving groove 104, so that at least part of the limiting protrusion 410 of the second gasket 400 received in the receiving groove 104 is received in the limiting groove 1031. Through the above structural design, the present disclosure can further ensure that the second gasket 400 and the first clamping plate 110 do not rotate relative to each other.

[0066] As Figures 4 to 9 shown, based on the structural design that the assembly part 102 is provided with a groove wall and encloses a receiving groove with the assembly part, in an embodiment of the present disclosure, a retaining wall 103 is provided on the outer periphery of part of the groove wall. A limiting groove 1031 extending along the first direction X is provided on one side of the retaining wall 103 facing the shaft column 130. The limiting groove 1031 communicates with the receiving groove 104. A limiting protrusion 410 is provided on the edge of the second gasket 400, and at least part of the limiting protrusion 410 is located in the limiting groove 1031. Through the above structural design, the present disclosure can prevent the limiting gasket from rotating relative to the first clamping plate 110. At the same time, through the above limiting design, the present disclosure can ensure the simplicity and consistency of the relative movement between the internal parts of the folding blade device, further improve the consistency of the friction force when the blade 200 rotates, reduce the requirements for the dimensional tolerances of the parts of the folding blade device, and the requirements for the tightening force of the screws by the employees during production and manufacturing.

[0067] Based on the structural design of the folding paddle device including the second gasket 400, in an embodiment of the present disclosure, the material of the second gasket 400 can be Teflon. In some embodiments, the material of the second gasket 400 can also be metal, plastic, etc., and is not limited to this embodiment.

[0068] As Figures 4 to 7 shown, in an embodiment of the present disclosure, the two clamping plates are respectively the first clamping plate 110 and the second clamping plate 120, and the shaft column 130 can be integrally formed with the first clamping plate 110.

[0069] As Figures 4 to 7 shown, based on the structural design that the shaft column 130 and the clamping plate are of an integral structure, in an embodiment of the present disclosure, a connection hole 131 can be provided in the shaft column 130. The connection hole 131 extends along the first direction X, and the connection hole 131 is at least open at one end face of the shaft column 130 away from the first clamping plate 110. On this basis, the assembly part 102 of the connection hole 131 and the second clamping plate 120 can be connected via a connecting piece 132. For example, the connecting piece 132 passes through the second clamping plate 120 and is assembled with the connection hole 131.

[0070] As Figure 4 and Figure 5 shown, in an embodiment of the present disclosure, internal threads can be provided on the inner wall of the connection hole 131, and the connecting piece 132 can be a screw, and the screw is in screw connection with the connection hole 131. Through the above structural design, since the two clamping plates are in direct contact through the shaft column 130, the gap between the two clamping plates is constant. At the same time, when using a connecting piece 132 such as a screw to connect the clamping plate and the shaft column 130, the clamping plate is in direct hard contact with the shaft column 130 through the screw, and the gap between the two will not change due to the torque of locking the screw. Therefore, the torque of locking the screw when installing the two clamping plates can be designed as a certain constant value, which is convenient for operation.

[0071] It should be noted here that the folding paddle devices shown in the drawings and described in this specification are only a few examples of the many folding paddle devices that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the folding paddle devices shown in the drawings or described in this specification.

[0072] In summary, the folding paddle device proposed by the present disclosure includes a housing 100 and paddle blades 200; the housing 100 includes two clamping plates arranged along the first direction X, and the area where the clamping plates are cooperatively connected to the paddle blades 200 forms an assembly portion 102; a receiving cavity is formed between the two clamping plates, and a shaft column 130 is arranged in the receiving cavity. The shaft column 130 extends along the first direction X and connects the assembly portions 102 of the two clamping plates; one end of the paddle blade 200 has an assembly hole 210. The paddle blade 200 is sleeved on the shaft column 130 via the assembly hole 210; an elastic member 300 is arranged between the paddle blade 200 and the clamping plate. The elastic member 300 is located in the receiving cavity, one end of the elastic member 300 abuts against the paddle blade, and the other end abuts against the assembly portion 102. Through the above structural design, the present disclosure can utilize the certain elastic coefficient of the elastic member 300 to provide a better ability to absorb the dimensional tolerance of the component, and improve the consistency of the frictional torque when the folding paddle device rotates.

[0073] Based on the above detailed description of several exemplary embodiments of the folding paddle device proposed by the present disclosure, the following will describe an exemplary embodiment of the aircraft proposed by the present disclosure.

[0074] In an embodiment of the present disclosure, the aircraft proposed by the present disclosure includes the folding paddle device proposed by the present disclosure and described in detail in the above embodiments.

[0075] It should be noted here that the aircraft shown in the drawings and described in this specification are only a few examples of the many types of aircraft that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details of the aircraft shown in the drawings or described in this specification or any components of the aircraft.

[0076] In summary, the aircraft proposed by the present disclosure can improve the consistency of the frictional torque when the folding paddle device rotates by adopting the folding paddle device proposed by the present disclosure.

[0077] The exemplary embodiments of the folding paddle device and the aircraft proposed by the present disclosure have been described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from the other components and / or steps described herein. Each component and / or each step of one embodiment can also be used in combination with the other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "a", "one", and "above-mentioned" etc. are used to indicate the existence of one or more elements / components / etc. The terms "comprising", "including", and "having" are used to mean an open inclusion and refer to the existence of additional elements / components / etc. in addition to the listed elements / components / etc. Furthermore, the terms "first" and "second" etc. in the claims and the specification are only used as labels and are not numerical limitations on their objects.

[0078] Although the folding paddle device and the aircraft proposed by the present disclosure have been described according to different specific embodiments, those skilled in the art will recognize that modifications can be made to the embodiments of the present disclosure within the spirit and scope of the claims.

Claims

1. A folding paddle device, characterized in that: It includes a housing (100) and a paddle blade (200); The housing (100) includes two clamping plates arranged at intervals along the first direction (X), and an assembly portion (102) is formed in the area where the clamping plates are cooperatively connected to the paddle blade (200); a receiving cavity is formed between the two clamping plates, and a shaft column (130) is provided in the receiving cavity. The shaft column (130) extends along the first direction (X) and connects the assembly portions (102) of the two clamping plates; One end of the paddle blade (200) has an assembly hole (210), and the paddle blade (200) is sleeved on the shaft column (130) through the assembly hole (210); An elastic member (300) is provided between the paddle blade (200) and the clamping plate. The elastic member (300) is located in the receiving cavity. One end of the elastic member (300) abuts against the paddle blade (200), and the other end abuts against the assembly portion (102).

2. The folding oar device according to claim 1, characterized in that, The elastic member (300) is provided between the paddle blade (200) and one of the clamping plates, and the paddle blade (200) is in hard contact with the other clamping plate; or, the elastic member (300) is respectively provided between the paddle blade (200) and the two clamping plates.

3. The folding oar device according to claim 1, wherein A first gasket (220) is provided between the clamping plate and the paddle blade (200), and the clamping plate abuts against the paddle blade (200) through the first gasket (220); and / or, a first gasket (220) is provided between the elastic member (300) and the paddle blade (200), and the elastic member (300) abuts against the paddle blade (200) through the first gasket (220).

4. The folding paddle device according to claim 3, characterized in that: The material of the first gasket (220) is Teflon; and / or The paddle blade (200) and the first gasket (220) are bonded via an adhesive layer (230).

5. The folding oar device according to claim 1, characterized in that, The elastic member (300) is a spring; a second gasket (400) is provided between the paddle blade (200) and the elastic member (300). The second gasket (400) is sleeved on the shaft column (130), and the elastic member (300) abuts against the paddle blade (200) through the second gasket (400); a limiting ring (420) and a guiding ring (430) protruding along the first direction (X) are provided on one side surface of the second gasket (400) facing the elastic member (300). The limiting ring (420) is spaced apart on the outer periphery of the guiding ring (430); the spring is sleeved on the limiting ring (420); the guiding ring (430) is wound around the shaft column (130) and is in contact with the shaft column (130).

6. The folding paddle device according to claim 5, characterized in that, The assembly portion (102) is provided with a groove wall extending along the first direction (X). The groove wall surrounds the shaft column (130) and encloses a receiving groove (104) with the assembly portion (102); the elastic member (300) and the second gasket (400) are located in the receiving groove (104).

7. The folding oar device according to claim 6, characterized in that, A retaining wall (103) is provided on the periphery of the groove wall of the part. A limiting groove (1031) extending in a first direction (X) is provided on the side of the retaining wall (103) facing the shaft column (130), and the limiting groove (1031) communicates with the receiving groove (104); a limiting protrusion (410) is provided on the edge of the second gasket (400), and at least part of the limiting protrusion (410) is located in the limiting groove (1031).

8. The folding oar device according to claim 1, characterized in that, The two clamping plates are respectively a first clamping plate (110) and a second clamping plate (120), and the shaft column (130) is integrally formed with the first clamping plate (110).

9. The folding oar device according to claim 8, wherein A connecting hole (131) is provided in the shaft column (130), the connecting hole (131) extends along the first direction (X), and at least opens at an end face of the shaft column (130) far from the first clamping plate (110); the connecting hole (131) is connected to the assembling part (102) of the second clamping plate (120) via a connecting piece (132).

10. An aircraft, characterized in that, Comprising the folding paddle device according to any one of claims 1 to 9.

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