Transmission structure and unmanned aerial vehicle

Abstract

This application discloses a transmission structure and a drone, relating to the field of drone structure technology. The transmission structure includes a base, an adjustment component, and a transmission assembly. The adjustment component includes a pressure belt portion, a connecting portion, and a first locking member. One end of the connecting portion is located on one side of the base via the first locking member, and the pressure belt portion is located at the other end of the connecting portion. The connecting portion is used to drive the pressure belt portion to perform an arc motion around the first locking member. The first locking member is used to fasten or loosen the connecting portion and the base. The transmission assembly includes a first transmission wheel, a second transmission wheel, and a transmission belt. Both the first and second transmission wheels are located on the side of the base where the connecting portion is located. One end of the transmission belt is sleeved on the first transmission wheel, and the other end of the transmission belt is sleeved on the second transmission wheel. The pressure belt portion is located between the first and second transmission wheels. This application uses an adjustment component to adjust the tension of the transmission belt, thereby improving the yield rate of drone products and reducing production costs.

Description

Technical Field

[0001] This application relates to the field of unmanned aerial vehicle (UAV) structural technology, and in particular to a transmission structure and a UAV. Background Technology

[0002] In existing technologies, the tightness of drone drive belts may vary due to processing or assembly errors. This can result in some drones from the same batch having drive belts that are too loose or too tight, thus reducing the yield rate of drone products and increasing production costs. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a transmission structure that allows for manual adjustment of the tension of the transmission belt, thereby improving the yield rate of drone products and reducing production costs.

[0004] A transmission structure according to a first aspect of this application includes a base; an adjustment assembly comprising a pressure belt portion, a connecting portion, and a first locking member, wherein one end of the connecting portion is disposed on one side of the base via the first locking member, the pressure belt portion is disposed at the other end of the connecting portion, the connecting portion is used to drive the pressure belt portion to perform an arc motion with the first locking member as the center, and the first locking member is used to fasten or loosen the connecting portion and the base; and a transmission assembly comprising a first transmission wheel, a second transmission wheel, and a transmission belt, wherein the first transmission wheel and the second transmission wheel are both disposed on the side of the base where the connecting portion is disposed, one end of the transmission belt is sleeved on the first transmission wheel, the other end of the transmission belt is sleeved on the second transmission wheel, the pressure belt portion is disposed between the first transmission wheel and the second transmission wheel, and the connecting portion is used to drive the pressure belt portion to move toward or away from the first transmission wheel when the first locking member loosens the connecting portion and the base, so as to release or tighten the transmission belt.

[0005] The transmission structure according to the embodiments of this application has at least the following beneficial effects: by setting a base, the adjustment component and the transmission component can be mounted and fixed; the first transmission wheel drives the second transmission wheel to rotate, thereby allowing the second transmission wheel to be set accordingly, and the required speed, torque, etc. can be obtained through the second transmission wheel, increasing the application range of the transmission structure of this application. The setting of the adjustment component facilitates the adjustment of the tension of the transmission belt. That is, when the connecting part moves in an arc with the first locking member as the center towards the first transmission wheel, the pressing part will loosen the transmission belt, and when it moves in an arc away from the first transmission wheel, the pressing part will press the transmission belt, thereby realizing the pressing or releasing of the transmission belt, and thus facilitating the adjustment of the tension of the transmission belt through the adjustment component, so as to manually adjust the drone with the transmission belt that is too tight or too loose. Compared with the traditional drone with a non-adjustable transmission belt, the adjustable transmission structure can effectively improve the yield of drone products and reduce production costs.

[0006] According to some embodiments of this application, the pressure belt portion includes a first pressure belt wheel and a second pressure belt wheel. The first pressure belt wheel is located at one end of the connecting portion near the first locking member, and the second pressure belt wheel is located at the other end of the connecting portion. There is a gap between the first pressure belt wheel and the second pressure belt wheel, and the other end of the transmission belt passes through the gap and is sleeved on the second transmission wheel.

[0007] According to some embodiments of this application, the connecting part is provided with an arc-shaped limiting hole at one end near the second pressure roller, and the base is provided with a limiting post on one side near the connecting part, the limiting post passing through the arc-shaped limiting hole.

[0008] According to some embodiments of this application, the adjustment assembly further includes a second locking member, which is disposed at the end of the limiting post away from the base, and is used to fasten or loosen the limiting post and the connecting portion.

[0009] According to some embodiments of this application, the cross-sectional area of ​​the second transmission wheel is larger than that of the first transmission wheel.

[0010] According to some embodiments of this application, it also includes a housing that covers the base, and the transmission assembly and the adjustment assembly are disposed between the housing and the base.

[0011] According to some embodiments of this application, the connecting portion is provided with a gripping portion at one end near the second pressure roller, the housing is provided with a strip-shaped through hole, and the gripping portion extends outward through the strip-shaped through hole.

[0012] According to some embodiments of this application, the outer peripheral walls of the first transmission wheel and the second transmission wheel are both narrow in the middle and wide on both sides. A first limiting portion protruding radially outward is formed on both sides of the outer peripheral wall of the first transmission wheel. The narrow middle portion of the outer peripheral wall of the first transmission wheel contacts and engages with the transmission belt. The first limiting portion is located on both sides of the transmission belt. A second limiting portion protruding radially outward is formed on both sides of the outer peripheral wall of the second transmission wheel. The narrow middle portion of the outer peripheral wall of the second transmission wheel contacts and engages with the transmission belt. The second limiting portion is located on both sides of the transmission belt. The first limiting portion is used to restrict the transmission belt from shifting along the axial direction of the first transmission wheel, and the second limiting portion is used to restrict the transmission belt from shifting along the axial direction of the second transmission wheel.

[0013] According to some embodiments of this application, a drive assembly is also included, which is disposed on the side of the first transmission wheel away from the base. The drive assembly is used to drive the first transmission wheel to drive the second transmission wheel to rotate.

[0014] The drone according to a second aspect embodiment of this application includes:

[0015] The transmission structure of the first aspect of this application.

[0016] The drone according to the embodiments of this application has at least the following beneficial effects: by setting a base, an adjustment component and a transmission component can be mounted and fixed; the first transmission wheel drives the second transmission wheel to rotate, thereby allowing the second transmission wheel to be set accordingly, and the required speed, torque, etc. can be obtained through the second transmission wheel, increasing the application range of the transmission structure of this application. The setting of the adjustment component facilitates the adjustment of the tension of the transmission belt. That is, when the connecting part moves in an arc with the first locking member as the center towards the first transmission wheel, the pressing part will loosen the transmission belt, and when it moves in an arc away from the first transmission wheel, the pressing part will press the transmission belt, thereby realizing the pressing or releasing of the transmission belt, and thus facilitating the adjustment of the tension of the transmission belt through the adjustment component, so as to manually adjust the drone with the transmission belt that is too tight or too loose. Compared with the traditional drone with a non-adjustable transmission belt, the adjustable transmission structure can effectively improve the yield of drone products and reduce production costs. By introducing the transmission structure of this application, the transmission belt can be manually adjusted, improving the yield of drones and reducing production costs.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the transmission structure according to an embodiment of this application;

[0020] Figure 2 for Figure 1 The diagram shown is a schematic of the transmission structure after the housing is closed.

[0021] Figure 3 for Figure 2 A schematic diagram of the transmission structure from another perspective after the housing is covered.

[0022] Figure label:

[0023] First drive wheel 100; second drive wheel 110; drive belt 120; base 130; connecting part 140; arc-shaped limiting hole 141; gripping part 142; first locking member 143; second locking member 144; first pressure roller 150; second pressure roller 160; housing 170; strip-shaped through hole 171; drive assembly 180. Detailed Implementation

[0024] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0025] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0028] Currently, the tension of the transmission belt 120 in traditional drones is difficult to change, as it is the initial preset tension. However, after processing and assembly, the tension of the transmission belt 120 may become inaccurate, resulting in it being too tight or too loose. This leads to a discrepancy between the actual effect and the preset, or even failure to meet the qualified standards, thereby reducing the yield rate of drone products and increasing the actual production cost.

[0029] Based on this, this application proposes a transmission structure and a drone, which allows the tension of the transmission belt 120 to be manually adjusted, ensuring that the tension of the transmission belt remains within a preset range after the drone is assembled, thus meeting the qualification standards, thereby improving the yield rate of drone products and reducing production costs.

[0030] It is understood that the transmission structure of this application embodiment includes a base 130, an adjustment assembly, and a transmission assembly. The adjustment assembly includes a pressure belt portion, a connecting portion 140, and a first locking member 143. One end of the connecting portion 140 is disposed on one side of the base 130 via the first locking member 143, and the pressure belt portion is disposed at the other end of the connecting portion 140. The connecting portion 140 is used to drive the pressure belt portion to perform an arc motion with the first locking member 143 as the center. The first locking member 143 is used to fasten or loosen the connecting portion 140 and the base 130. The transmission assembly includes a first transmission wheel 100 and a second transmission wheel 100. The first drive wheel 100 and the second drive wheel 110 are both located on the side of the base 130 where the connecting part 140 is provided. One end of the drive belt 120 is sleeved on the first drive wheel 100, and the other end of the drive belt 120 is sleeved on the second drive wheel 110. The pressing part is located between the first drive wheel 100 and the second drive wheel 110. When the first locking member 143 loosens the connecting part 140 and the base 130, the connecting part 140 drives the pressing part to move towards or away from the first drive wheel 100, so as to release or press the drive belt 120.

[0031] The beneficial effects of the transmission structure in this application embodiment are as follows: By setting the base 130, the adjustment component and the transmission component can be mounted and fixed; the first transmission wheel 100 drives the second transmission wheel 110 to rotate, thereby allowing the second transmission wheel 110 to be set accordingly, and thus obtaining the required speed, torque, etc. through the second transmission wheel 110, increasing the application range of the transmission structure of this application; the setting of the adjustment component facilitates the adjustment of the tension of the transmission belt 120, that is, when the connecting part 140 is centered on the first locking member 143 and moves towards the first transmission wheel 100... When the transmission belt moves in an arc, the pressure section loosens the transmission belt 120. When it moves in an arc away from the first transmission wheel 100, the pressure section tightens the transmission belt 120. This allows for the tightening or loosening of the transmission belt 120, which facilitates adjustment of the tension of the transmission belt 120 via the adjustment component. This enables manual adjustment of the transmission belt 120 for drones that are too tight or too loose. Compared to traditional drones with a non-adjustable transmission belt 120, the adjustable transmission structure can effectively improve the yield rate of drone products and reduce production costs.

[0032] For example, in some embodiments, reference is made to Figure 1In this embodiment, a first transmission wheel 100 and a second transmission wheel 110 are fixed on the base 130. The transmission belt 120 has a closed-loop structure, with both ends of the transmission belt 120 respectively sleeved on the first transmission wheel 100 and the second transmission wheel 110. A connecting part 140 is located between the first transmission wheel 100 and the second transmission wheel 110. One end of the connecting part 140 is fixedly connected to the base 130 via a first locking member 143, and the other end of the connecting part 140 is fixed with a belt pressing part. The first locking member 143 is a bolt structure, that is, the first connecting member includes a first nut and a first screw. One end of the first screw passes through the connecting part 140 and is connected to the first nut on the base 130. In the fixed state, the first screw and the connecting part 140 are pressed together, so that the connecting part 140 cannot move relative to the base 130. When it is necessary to adjust the tension of the transmission belt 120, the first screw is turned so that the first screw and the connecting part 140 are no longer pressed together. With the fixed state released, the connecting part 140 can move the pressing part in an arc around the first screw. At this time, when the connecting part 140 moves the pressing part away from the first drive wheel 100, the pressing part will squeeze the drive belt 120, thereby increasing the tension of the drive belt 120. When the connecting part 140 moves the pressing part closer to the first drive wheel 100, the pressing part relaxes the drive belt 120, that is, the degree of compression of the drive belt 120 by the pressing part is reduced, thereby reducing the tension of the drive belt 120. This achieves the adjustment of the tension of the drive belt 120. At the same time, after the tension of the drive belt 120 is adjusted, the first screw is rotated in the opposite direction until the first screw is tightened against the connecting part 140 again, thereby restoring the fixed state between the connecting part 140 and the base 130. This prevents the connecting part 140 from rotating during use and changing the tension of the drive belt 120, which would affect the quality and performance of the drone.

[0033] It is understood that the belt pressing part includes a first belt pressing roller 150 and a second belt pressing roller 160. The first belt pressing roller 150 is located at one end of the connecting part 140 near the first locking member 143, and the second belt pressing roller 160 is located at the other end of the connecting part 140. There is a gap between the first belt pressing roller 150 and the second belt pressing roller 160. The other end of the transmission belt 120 passes through the gap and is sleeved on the second transmission roller 110.

[0034] For example, in some embodiments, reference is made to Figure 1In this embodiment, the first pressure roller 150 is fixed to the end of the connecting part 140 away from the first locking member 143, and the second pressure roller 160 is fixed to the end near the first locking member 143. One end of the transmission belt 120 is sleeved on the first transmission wheel 100, and the other end of the transmission belt 120 passes through the gap between the first pressure roller 150 and the second pressure roller 160 and is then sleeved on the second transmission wheel 110. When the connecting part 140 drives the pressure part to move towards the first transmission wheel 100, the first pressure roller 150 releases pressure on the first surface of the outer side of the transmission belt 120, and the second pressure roller 160 also releases pressure on the second surface of the outer side of the transmission belt 120, thereby reducing the tension of the transmission belt 120. Similarly, when the connecting part 140 drives the pressure part to move towards the first transmission wheel 100, the first pressure roller 150 releases pressure on the first surface of the outer side of the transmission belt 120, and the second pressure roller 160 also releases pressure on the second surface of the outer side of the transmission belt 120, thereby reducing the tension of the transmission belt 120. When the belt moves away from the first drive pulley 100, the pressure applied by the first pressure pulley 150 to the first surface of the outer side of the drive belt 120 increases, and the pressure applied by the second pressure pulley 160 to the second surface of the outer side of the drive belt 120 also increases synchronously, thereby increasing the tension of the drive belt 120. In conventional partial transmission structures, only one pressure pulley is usually provided, but the pressure of a single pressure pulley on the drive belt 120 may fluctuate due to factors such as vibration, resulting in unstable tension of the drive belt 120. The design of two pressure pulleys in this application allows the first pressure pulley 150 and the second pressure pulley 160 to apply pressure to different surfaces of the drive belt 120, achieving coordinated tensioning, thereby offsetting some of the interference from vibration, maintaining stable tension, and reducing the risk of slippage.

[0035] It is understandable that: the end of the connecting part 140 near the second pressure roller 160 is provided with an arc-shaped limiting hole 141, and the base 130 is provided with a limiting post on the side near the connecting part 140, with the limiting post passing through the arc-shaped limiting hole 141.

[0036] For example, in some embodiments, reference is made to Figure 1 and Figure 3 In this embodiment, the connecting part 140 is provided with an arc-shaped limiting hole 141 at one end near the second pressure roller 160. The limiting post on the base 130 passes through the arc-shaped limiting hole 141. The size of the arc-shaped limiting hole 141 is the range in which the connecting part 140 drives the pressure part to make arc movements with the first locking member 143 as the center. The use of the arc-shaped limiting hole 141 and the limiting post makes it easy to limit the movement range of the pressure part, preventing the pressure part from moving too deep in the direction close to the first transmission wheel 100, causing the pressure part to apply excessive pressure to the transmission belt 120, resulting in damage or breakage of the transmission belt 120, and thus affecting the maintenance cost.

[0037] Furthermore, referring to Figure 1In some embodiments, the connecting plate is an isosceles triangular plate structure, wherein a first fastener is provided at the vertex of the isosceles triangular plate, a first pressure roller 150 and a second pressure roller 160 are provided on one of the legs of the isosceles triangular plate, the first pressure roller 150 is provided at the end close to the first fastener, and the second pressure roller 160 is provided at the end away from the first fastener, and an arc-shaped limiting hole 141 is provided on the bottom edge of the isosceles triangular plate. The isosceles triangular plate structure makes the connecting part 140 more robust and stable, thereby ensuring the stability of the tension adjustment process of the transmission belt 120 and avoiding the breakage of the connecting part 140 during the adjustment process.

[0038] It is understood that the adjustment assembly also includes a second locking member 144, which is located at the end of the limiting post away from the base 130. The second locking member 144 is used to fasten or loosen the limiting post and the connecting part 140.

[0039] For example, in some embodiments, reference is made to Figure 1 In this embodiment, the second locking member 144 is a second screw, and the limiting post is provided with a thread that matches the second locking member 144. The second locking member 144 is located at the end of the limiting post away from the base 130, and the connecting part 140 is located between the base 130 and the second locking member 144. When the connecting part 140 is adjusted to a preset position, the second locking member 144 is rotated to move along the limiting post toward the connecting part 140 until the second locking member 144 abuts against the connecting part 140. When it is necessary to adjust the connecting part... When the position of 140 is adjusted, the second locking member 144 is rotated in the opposite direction, causing the second locking member 144 to move away from the connecting part 140 along the limiting post, thereby releasing the tightness between the second locking member 144 and the connecting part 140. By using the second locking member 144, the fixed state of the base 130 and the connecting part 140 is further stabilized on the basis of the first locking member 143 fixing the base 130 and the connecting part 140, and further fixed to prevent the base 130 and the connecting part 140 from moving relative to each other during fixing.

[0040] It is understandable that the cross-sectional area of ​​the second transmission wheel 110 is greater than that of the first transmission wheel 100.

[0041] For example, in some embodiments, reference is made to Figure 1In this embodiment, the cross-sectional area of ​​the second transmission wheel 110 is larger than that of the first transmission wheel 100, that is, the diameter of the second transmission wheel 110 is larger than that of the first transmission wheel 100. When the first transmission wheel 100 rotates, it drives the second transmission wheel 110 to rotate through the transmission belt 120. This results in the second transmission wheel 110 having a lower rotational speed but a higher torque compared to the first transmission wheel 100. In specific applications, the center of the second transmission wheel 110 is usually connected to the propeller of the UAV through the first connecting shaft. The rotation of the second transmission wheel 110 drives the rotation of the propeller, thereby meeting the propeller's requirements for high torque and low speed, and avoiding the first transmission wheel 100 directly driving the propeller to rotate, which would cause propeller overload and increase maintenance costs.

[0042] It is understood that the transmission structure of this application also includes a housing 170, which covers the base 130, and the transmission assembly and adjustment assembly are located between the housing 170 and the base 130.

[0043] For example, in some embodiments, reference is made to Figure 2 and Figure 3 In this embodiment, the housing 170 covers the base 130, which can protect the transmission components and adjustment components inside the housing 170 to a certain extent when other components are installed on the drone.

[0044] It is understandable that: the connecting part 140 is provided with a gripping part 142 at one end near the second pressure roller 160, and the housing 170 is provided with a strip-shaped through hole 171, and the gripping part 142 extends outward through the strip-shaped through hole 171.

[0045] For example, in some embodiments, reference is made to Figure 1 and Figure 2 In this embodiment, the gripping part 142 is connected to the end of the connecting part 140 near the second pressure roller 160, and the gripping part 142 extends to the outside of the housing 170 through the strip-shaped through hole 171 on the housing 170, so that the operator can rotate the connecting part 140 from outside the housing 170 through the gripping part 142, thereby driving the pressure roller to adjust the tension of the transmission belt 120. The specific adjustment steps with the gripping part 142 are as follows: rotate the first screw and the second screw to release the connecting part 140 from the base 130, use a tension gauge to hook the gripping part 142, and then pull the tension gauge in the specified direction until the tension value of the tension gauge reaches the preset value, that is, after the transmission belt 120 is adjusted to a suitable tension, rotate the first screw and the second screw in the opposite direction to fix the connecting part 140 and the base 130 to each other, thereby completing one adjustment of the tension of the transmission belt 120. The tension value of the tension gauge is used to provide feedback on the tension of the transmission belt 120.

[0046] It is understood that the outer peripheral walls of the first transmission wheel 100 and the second transmission wheel 110 are both narrow in the middle and wide on both sides. The outer peripheral walls of the first transmission wheel 100 form radially outward protruding first limiting portions on both sides. The narrow middle portion of the outer peripheral wall of the first transmission wheel 100 contacts and engages with the transmission belt 120. The first limiting portions are located on both sides of the transmission belt 120. The outer peripheral walls of the second transmission wheel 110 form radially outward protruding second limiting portions on both sides. The narrow middle portion of the outer peripheral wall of the second transmission wheel 110 contacts and engages with the transmission belt 120. The second limiting portions are located on both sides of the transmission belt 120. The first limiting portions are used to restrict the transmission belt 120 from shifting along the axial direction of the first transmission wheel 100, and the second limiting portions are used to restrict the transmission belt 120 from shifting along the axial direction of the second transmission wheel 110.

[0047] For example, in some embodiments, reference is made to Figure 1 In this embodiment, the first limiting portions on both sides of the outer peripheral wall of the first transmission wheel 100 enable the transmission belt 120 to be engaged between the two first limiting portions when one end of the transmission belt 120 is sleeved on the first transmission wheel 100, and to make the transmission belt 120 contact and cooperate with the middle narrow portion of the outer peripheral wall of the first transmission wheel 100. Similarly, the second limiting portions on both sides of the outer peripheral wall of the second transmission wheel 110 enable the transmission belt 120 to be engaged between the two second limiting portions when the other end of the transmission belt 120 is sleeved on the second transmission wheel 110, and to make the transmission belt 120 contact and cooperate with the middle narrow portion of the outer peripheral wall of the second transmission wheel 110, so as to ensure the stability of the transmission belt 120 during the transmission process and prevent the transmission belt 120 from detaching from the first transmission wheel 100 or the second transmission wheel 110.

[0048] It is understood that the transmission structure of this application also includes a drive assembly 180, which is located on the side of the first transmission wheel 100 away from the base 130. The drive assembly 180 is used to drive the first transmission wheel 100 to drive the second transmission wheel 110 to rotate.

[0049] For example, in some embodiments, reference is made to Figure 2 and Figure 3 In this embodiment, the drive assembly 180 is located on the side of the first transmission wheel 100 away from the base 130. The drive assembly 180 is fixedly connected to the center of the first transmission wheel 100 through the second connecting shaft, so that the drive assembly 180 can drive the first transmission wheel 100 to rotate, and then drive the second transmission wheel 110 to rotate through the transmission belt 120.

[0050] The drone according to the second aspect of the application includes the transmission structure of the first aspect of the application described above.

[0051] According to the UAV of this application embodiment, the UAV is equipped with a base 130 for mounting and fixing adjustment components and transmission components; the first transmission wheel 100 drives the second transmission wheel 110 to rotate, thereby allowing the second transmission wheel 110 to be configured accordingly, and thus obtaining the required speed, torque, etc. through the second transmission wheel 110, increasing the application range of the transmission structure of this application. The setting of the adjustment component facilitates the adjustment of the tension of the transmission belt 120, that is, when the connecting part 140 moves in an arc around the first locking member 143 as the center and moves towards the first transmission wheel 100, the belt pressing part will loosen the transmission belt 120 and move towards the first transmission wheel 100. When the transmission belt moves in an arc away from the first drive wheel 100, the pressure section presses the transmission belt 120, thereby tightening or releasing the transmission belt 120. This allows for easy adjustment of the tension of the transmission belt 120 via the adjustment component, enabling manual adjustment of the transmission belt 120 for drones that are too tight or too loose. Compared to traditional drones with non-adjustable transmission belts 120, the adjustable transmission structure effectively improves the yield rate of drone products, thereby reducing production costs. By introducing the transmission structure of this application, the transmission belt 120 can be manually adjusted, improving the yield rate of drones and reducing production costs.

[0052] Since the UAV includes the transmission structure of the first aspect embodiment, the corresponding contents of the transmission structure in the first aspect embodiment can be applied to the UAV of the second aspect, and have the same implementation principle and technical effect. To avoid redundancy, it will not be described in detail here.

[0053] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A transmission structure, characterized by, The utility model relates to a kind of adjustable transmission device, including: Base; Adjustment assembly, the adjustment assembly includes compression belt part, connecting part and first locking piece, one end of the connecting part is located on one side of the base by the first locking piece, the compression belt part is located on the other end of the connecting part, the connecting part is used to drive the compression belt part to do circular motion with the first locking piece as center, the first locking piece is used to tighten or loosen the connecting part and the base; Transmission assembly, the transmission assembly includes first transmission wheel, second transmission wheel and transmission belt, the first transmission wheel and the second transmission wheel are located on the side of the base provided with the connecting part, one end of the transmission belt is sleeved on the first transmission wheel, the other end of the transmission belt is sleeved on the second transmission wheel, the compression belt part is located between the first transmission wheel and the second transmission wheel, the connecting part is used to drive the compression belt part to move towards the direction close to or away from the first transmission wheel when the first locking piece loosens the connecting part and the base, to release or compress the transmission belt.

2. The transmission arrangement of claim 1, wherein, The compression belt part includes first compression belt wheel and second compression belt wheel, the first compression belt wheel is located on one end of the connecting part close to the first locking piece, the second compression belt wheel is located on the other end of the connecting part, there is gap between the first compression belt wheel and the second compression belt wheel, the other end of the transmission belt is sleeved on the second transmission wheel after passing through the gap.

3. The transmission arrangement of claim 2, wherein, One end of the connecting part close to the second compression belt wheel is provided with arc-shaped limiting hole, one side of the base close to the connecting part is provided with limiting column, the limiting column is penetrated in the arc-shaped limiting hole.

4. The transmission arrangement of claim 3, wherein, The adjustment assembly further includes second locking piece, the second locking piece is located on the other end of the limiting column away from the base, and the second locking piece is used to tighten or loosen the limiting column and the connecting part.

5. The transmission arrangement of claim 2, wherein, The cross-sectional area of the second transmission wheel is greater than the cross-sectional area of the first transmission wheel.

6. The transmission arrangement of claim 2, wherein, Further including shell, the shell is covered on the base, and the transmission assembly and the adjustment assembly are located between the shell and the base.

7. The transmission arrangement of claim 6, wherein, One end of the connecting part close to the second compression belt wheel is provided with holding part, and the shell is provided with strip-shaped through hole, and the holding part extends outwards to the shell through the strip-shaped through hole.

8. The transmission arrangement of claim 2, wherein, The outer peripheral wall of the first transmission wheel and the outer peripheral wall of the second transmission wheel are both of the structure that middle is narrow and both sides are wide, the both sides of the outer peripheral wall of the first transmission wheel form the first limiting part that projects radially outward, the middle narrow part of the outer peripheral wall of the first transmission wheel is in contact with the transmission belt, and the first limiting part is located on both sides of the transmission belt, the both sides of the outer peripheral wall of the second transmission wheel form the second limiting part that projects radially outward, the middle narrow part of the outer peripheral wall of the second transmission wheel is in contact with the transmission belt, and the second limiting part is located on both sides of the transmission belt, the first limiting part is used to limit the transmission belt to deviate along the axial direction of the first transmission wheel, and the second limiting part is used to limit the transmission belt to deviate along the axial direction of the second transmission wheel.

9. The transmission arrangement of claim 2, wherein, The transmission structure further comprises a driving assembly arranged on the side of the first transmission wheel away from the base, and the driving assembly is used to drive the first transmission wheel to drive the second transmission wheel to rotate.

10. A drone, characterized in that, The transmission structure further comprises a driving assembly arranged on the side of the first transmission wheel away from the base, and the driving assembly is used to drive the first transmission wheel to drive the second transmission wheel to rotate. The transmission structure further comprises a driving assembly arranged on the side of the first transmission wheel away from the base, and the driving assembly is used to drive the first transmission wheel to drive the second transmission wheel to rotate.

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