Transmission structure and blowing device

Abstract

The present invention discloses a transmission structure and a blowing device, wherein the transmission structure comprises a first transmission member and a second transmission member, wherein the first transmission member is used for transmission cooperation with the first matching member, the second transmission member is used for transmission cooperation with the first transmission member, the second transmission member and the first transmission member can move relative to each other, the second transmission member has a first position and a second position when it moves relative to the first transmission member, when the second transmission member is located at the first position, the second transmission member is used for transmission cooperation with the second matching member, when the second transmission member is located at the second position, the second transmission member is disengaged from the second matching member, wherein one of the first matching member and the second matching member is a driving member. The above transmission structure can achieve more functions by adjusting the relative position of the first transmission member and the second transmission member, so that the driving member can be in transmission cooperation with the other of the first matching member and the second matching member, or the driving member can continue to output power but does not drive the other of the first matching member and the second matching member.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a transmission structure and a blowing device. Background Art

[0002] With the continuous development of technology, more and more functional requirements are placed on fans. In traditional fans on the market, the motor shaft is directly connected to the fan blades, and the motor drives the fan blades to rotate. However, if there are other loads on the motor, the load can only work or stop at the same time as the motor and fan blades, so that the load cannot work when the current fan blades stop, which limits the use of the load, causes functional limitations, and cannot meet usage needs. Summary of the Invention

[0003] Based on this, the present invention aims to overcome the defect in the prior art that other loads can only work or stop at the same time as the current load, and provide a transmission structure and blowing device that can allow other loads to continue working when the current load stops.

[0004] The technical solution is as follows:

[0005] A transmission structure comprising:

[0006] a first transmission member, the first transmission member being configured to engage with the first mating member in a transmission manner; and

[0007] The second transmission member is in transmission cooperation with the first transmission member, and the second transmission member and the first transmission member are movable relative to each other. The second transmission member has a first position and a second position relative to the first transmission member. When the second transmission member is in the first position, the second transmission member is used to transmit and cooperate with the second matching member. When the second transmission member is in the second position, the second transmission member is disengaged from the second matching member.

[0008] Wherein, one of the first matching member and the second matching member is a driving member.

[0009] In the above-mentioned transmission structure, the first transmission member can be matched with the first matching member, the first transmission member is matched with the second transmission member, and the first transmission member and the second transmission member can move relatively. When the second transmission member moves to the first position relative to the first transmission member, the second transmission member is matched with the second matching member. At this time, a continuous transmission match of the first matching member, the first transmission member, the second transmission member and the second matching member can be formed. Since one of the first matching member and the second matching member is a driving member, the driving member can be matched with the other of the first matching member and the second matching member through the first transmission member, the second transmission member, and when the second transmission member moves relative to the first transmission member When it moves to the second position, the second transmission member disengages from the second matching member, and the driving member can no longer drive the other of the first matching member and the second matching member. Therefore, by adjusting the relative positions of the first transmission member and the second transmission member, the first transmission member can be made to engage or disengage with the second transmission member, and the driving member can drive the other of the first matching member and the second matching member, or the driving member continues to output power but does not drive the other of the first matching member and the second matching member. If the driving member also drives other loads, whether the current load is running will not affect the operation of other loads. The load can continue to run when the current load is not rotating, and more functions can be achieved.

[0010] In one embodiment, the second transmission member is configured to reciprocate in a direction approaching or away from the second matching member, and the second position and the first position are sequentially arranged in a direction approaching the second matching member.

[0011] In one embodiment, the transmission structure further includes a docking member, one end of which is used to connect with the second mating member. When the second transmission member is located at the first position, the second transmission member contacts the other end of the docking member and is mated through friction transmission.

[0012] In one embodiment, the second transmission member is provided with a groove, and the docking member is provided with a friction head matching the groove, and the outer surface of the friction head can contact the inner wall of the groove to enable the docking member and the second transmission member to rotate synchronously.

[0013] In one embodiment, the friction head is a conical structure, and the end surface of the friction head close to the second transmission member is a plane.

[0014] In one embodiment, a protrusion is provided on the outer surface of the friction head, and a groove matching the protrusion is provided on the inner wall of the groove.

[0015] In one embodiment, the transmission structure further includes a switch member, wherein the switch member contacts the second transmission member and is configured to drive the second transmission member to move from the first position to the second position.

[0016] In one embodiment, one end of the switch member contacts the second transmission member, the other end of the switch member is an operating end, and the switch member is provided with a hinge portion for hinged connection.

[0017] In one embodiment, a transmission portion and a contact portion are provided on the side of the second transmission member away from the first transmission member, the transmission portion is used to contact the docking member, and the contact portion is used to contact the switch member, the contact portion is arranged around the transmission portion, and the end of the switch member close to the contact portion is a ring structure that is sleeved outside the docking member.

[0018] In one embodiment, the first transmission member is provided with a first guide hole, the second transmission member extends into the first guide hole, a first assembly portion is provided on the outer wall of the second transmission member, and a second assembly portion is provided on the first transmission member. One of the first assembly portion and the second assembly portion is a slide groove, and the other is a slider that slides with the slide groove.

[0019] In one embodiment, the first transmission member includes a connected end cover and a sleeve, the sleeve surrounds the first guide hole, the end cover is arranged at one end of the sleeve, an elastic member is provided in the first guide hole, and the two ends of the elastic member respectively abut the end cover and the second transmission member.

[0020] In one embodiment, one end of the sleeve away from the end cover is bent inward to form a limiting portion, and the limiting portion surrounds a second guide hole connected to the first guide hole. The second transmission member includes a first section and a second section that are connected, the first section matches the first guide hole, and the second section matches the second guide hole.

[0021] In one embodiment, the second assembly portion is provided on the inner wall of the second guide hole, and the first assembly portion is provided outside the second sub-portion.

[0022] In one embodiment, the other of the first matching component and the second matching component is a fan blade.

[0023] A blowing device comprises a first matching piece, a second matching piece and a transmission structure as described in any one of the above items.

[0024] The above-mentioned blowing device, the first transmission member can be matched with the first matching member, the first transmission member is matched with the second transmission member, and the first transmission member and the second transmission member can move relatively. When the second transmission member moves to the first position relative to the first transmission member, the second transmission member is matched with the second matching member. At this time, a continuous transmission coordination of the first matching member, the first transmission member, the second transmission member and the second matching member can be formed. Since one of the first matching member and the second matching member is a driving member, the driving member can be matched with the other of the first matching member and the second matching member through the first transmission member, the second transmission member, and when the second transmission member moves relative to the first transmission member When it moves to the second position, the second transmission member disengages from the second matching member, and the driving member can no longer drive the other of the first matching member and the second matching member. Therefore, by adjusting the relative positions of the first transmission member and the second transmission member, the first transmission member can be made to engage or disengage with the second transmission member, and the driving member can drive the other of the first matching member and the second matching member, or the driving member continues to output power but does not drive the other of the first matching member and the second matching member. If the driving member also drives other loads, whether the current load is running will not affect the operation of other loads. The load can continue to run when the current load is not rotating, and more functions can be achieved.

[0025] In one embodiment, the blowing device further includes a third matching piece, the second matching piece is a driving piece, the first matching piece is a fan blade, and the second matching piece is in transmission cooperation with the third matching piece.

[0026] In one embodiment, the third fitting part is a fan blade.

[0027] In one embodiment, the first matching member and the third matching member are arranged on both sides of the second matching member along the same straight line.

[0028] In one embodiment, the blowing device further includes a housing and a bearing, wherein the bearing sleeve is arranged outside the first transmission member, and the first matching member, the second matching member, the transmission structure and the bearing are all arranged inside the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A cross-sectional view of the blowing device when the second transmission member according to an embodiment of the present invention is located in the first position;

[0032] Figure 2 A cross-sectional view of the blowing device when the second transmission member according to an embodiment of the present invention is located at the second position;

[0033] Figure 3 for Figure 1 A magnified schematic diagram of point A in the middle;

[0034] Figure 4 for Figure 2 A magnified schematic diagram of point B in the middle;

[0035] Figure 5 This is an exploded schematic diagram of the blowing device according to an embodiment of the present invention;

[0036] Figure 6 for Figure 5 Enlarged schematic diagram of point C in the middle.

[0037] Description of reference numerals:

[0038] 100. First transmission member, 101. First guide hole, 110. End cover, 120. Bushing, 121. Limiting portion, 200. Second transmission member, 201. Groove, 202. Contact portion, 210. First assembly portion, 220. First subsection, 230. Second subsection, 300. Docking member, 310. Friction head, 311. Protrusion, 400. Switch member, 410. Hinge portion, 500. Elastic member, 10. First mating member, 20. Second mating member, 30. Fixing member, 40. Third mating member, 50. Bearing. DETAILED DESCRIPTION

[0039] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] like Figures 1 to 4As shown, an embodiment discloses a transmission structure, including a first transmission member 100 and a second transmission member 200, wherein the first transmission member 100 is used for transmission cooperation with the first matching member 10, and the second transmission member 200 is used for transmission cooperation with the first transmission member 100, and the second transmission member 200 and the first transmission member 100 are movable relative to each other, and the second transmission member 200 has a first position and a second position when it moves relative to the first transmission member 100. When the second transmission member 200 is located at the first position, the second transmission member 200 is used for transmission cooperation with the second matching member 20, and when the second transmission member 200 is located at the second position, the second transmission member 200 is disengaged from the second matching member 20.

[0041] Among them, one of the first matching member 10 and the second matching member 20 is a driving member.

[0042] In the above-mentioned transmission structure, the first transmission member 100 can be transmission-coordinated with the first matching member 10, the first transmission member 100 is transmission-coordinated with the second transmission member 200, and the first transmission member 100 and the second transmission member 200 can move relative to each other. When the second transmission member 200 moves to the first position relative to the first transmission member 100, the second transmission member 200 is transmission-coordinated with the second matching member 20. At this time, a continuous transmission coordination of the first matching member 10, the first transmission member 100, the second transmission member 200 and the second matching member 20 can be formed. Since one of the first matching member 10 and the second matching member 20 is a driving member, the driving member can be transmission-coordinated with the other of the first matching member 10 and the second matching member 20 through the first transmission member 100, the second transmission member 200, and when the second transmission member When 200 moves to the second position relative to the first transmission member 100, the second transmission member 200 disengages from the second matching member 20, and the driving member can no longer drive the other of the first matching member 10 and the second matching member 20. Therefore, by adjusting the relative positions of the first transmission member 100 and the second transmission member 200, the first transmission member 100 and the second transmission member 200 can be made to engage or disengage in transmission, and the driving member can drive the other of the first matching member 10 and the second matching member 20, or the driving member continues to output power but does not drive the other of the first matching member 10 and the second matching member 20. If the driving member also drives other loads, whether the current load is running will not affect the operation of other loads, and the load can continue to run when the current load is not rotating, thereby realizing more functions.

[0043] The above-mentioned “current load” refers to the other one of the first matching component 10 and the second matching component 20 except the driving component.

[0044] In one embodiment, Figure 3 and Figure 4As shown, the second transmission member 200 is configured to reciprocate in a direction approaching or away from the second mating member 20, with the second position and the first position being sequentially arranged in a direction approaching the second mating member 20. When the second transmission member 200 moves to the first position in a direction approaching the second mating member 20, the second transmission member 200 can contact the second mating member 20 and achieve transmission engagement. When the second transmission member 200 moves to the second position in a direction away from the second mating member 20, the second transmission member 200 disengages from the second mating member 20, so that the second mating member 20 and the second transmission member 200 no longer perform transmission.

[0045] Optionally, the second transmission member 200 moves along the axial direction of the second mating member 20, where the axial direction is the length direction of the rotation center axis of the driving member; or the second transmission member 200 moves along the radial direction of the second mating member 20, where the radial direction is the radial direction of the driving shaft of the driving member.

[0046] Specifically, in this embodiment, the second transmission member 200 moves along the axial direction of the second matching member 20 , wherein the axial direction is the length direction of the rotation center axis of the driving member.

[0047] In one embodiment, Figure 3 and Figure 4 As shown, the transmission structure further includes a docking member 300, one end of which is configured to connect with the second mating member 20. When the second transmission member 200 is in the first position, the second transmission member 200 and the other end of the docking member 300 contact each other, resulting in a transmission engagement through friction. When the second transmission member 200 is in the first position, the second transmission member 200 contacts one end of the docking member 300, generating friction that allows the second transmission member 200 and the docking member 300 to engage with each other. The other end of the docking member 300 is connected to the second mating member 20, resulting in a transmission engagement between the second transmission member 200 and the second mating member 20. The frictional engagement is primarily achieved through contact between the docking member 300 and the second transmission member 200, making disengagement more convenient.

[0048] Optionally, the docking member 300 is detachably connected to the second mating member 20. Since the docking member 300 needs to rub against the second transmission member 200, the wear is large and needs to be replaced in time. The docking member 300 is detachably connected to the second transmission member 200 and the second mating member 20, so the docking member 300 can be easily removed separately for replacement or repair.

[0049] Specifically, if Figure 5As shown, the transmission structure further includes a fixing member 30. A fixing groove is provided on the end surface of the mating member 300. The fixing member 30 is fixed to the plug-in portion. When the plug-in portion extends into the receptacle, the fixing member 30 mates with the fixing groove, achieving circumferential fixation between the mating member 300 and the plug-in portion. Alternatively, the mating member 300 is provided with a receptacle at the end away from the second transmission member 200. The second mating member 20 includes a plug-in portion that plugs into the receptacle. A positioning groove is provided circumferentially on the outer wall of the plug-in portion. The fixing member 30 passes through the mating member 300 and extends into the positioning groove, achieving a detachable connection between the second mating member 20 and the mating member 300.

[0050] In other embodiments, when the second transmission member 200 is in the first position, mutually meshing transmission teeth are provided on the opposite sides of the second transmission member 200 and the docking member 300, and the transmission coordination between the docking member 300 and the second transmission member 200 can also be achieved through the meshing of the transmission teeth.

[0051] In one embodiment, Figure 3 and Figure 4 As shown, the second transmission member 200 is provided with a groove 201, and the docking member 300 is provided with a friction head 310 that matches the groove 201. The outer surface of the friction head 310 can contact the inner wall of the groove 201, enabling the docking member 300 and the second transmission member 200 to rotate synchronously. The friction head 310 extends into the groove 201, where the outer surface of the friction head 310 contacts the inner wall of the groove 201 to generate friction. This limits the range of friction generated within the groove 201, making it difficult for external impurities to enter between the friction head 310 and the inner wall of the groove 201, thereby ensuring a proper assembly between the friction head 310 and the second transmission member 200.

[0052] Specifically, the second transmission member 200 and the docking member 300 are both rotatable. When the second transmission member 200 contacts the docking member 300, a tangential friction force is generated on the contact surface. The tangential friction force is tangential to the rotation direction of the second transmission member 200 and the docking member 300, and can enable the second transmission member 200 and the docking member 300 to rotate together.

[0053] In other embodiments, the friction head 310 may also be provided on the second transmission component 200 , and the groove 201 may also be provided on the docking component 300 .

[0054] In one embodiment, Figure 3 and Figure 4As shown, the friction head 310 has a conical structure, and the end surface of the friction head 310 near the second transmission member 200 is flat. When the front end of the friction head 310 first enters the groove 201, there is a large gap between it and the inner wall of the groove 201. Even if there are errors in the initial alignment, it will not affect assembly. Subsequently, as the friction head 310 enters the groove 201, the inner wall of the groove 201 guides the friction head 310, aligning the friction head 310 with the second transmission member 200, ensuring contact between the friction head 310 and the second transmission member 200 and transmission through friction. Furthermore, while the friction head 310 is relatively small, occupying little space, it provides a large friction area, ensuring effective transmission.

[0055] In other embodiments, the friction head 310 may also be in other shapes, for example, the friction head 310 may also be a hemispherical surface.

[0056] In other embodiments, the side surface of the docking member 300 close to the second transmission member 200 is a planar structure, and the planar structure is used to directly contact the second transmission member 200 and generate friction.

[0057] In one embodiment, Figure 5 and Figure 6 As shown, a protrusion 311 is provided on the outer surface of the friction head 310, and a groove matching the protrusion 311 is provided on the inner wall of the groove 201. The protrusion 311 on the friction head 310 cooperates with the groove on the inner wall of the groove 201 to increase friction and improve transmission efficiency.

[0058] Optionally, there are multiple protrusions 311 , and the protrusions 311 are arranged at intervals along the circumference of the friction head 310 .

[0059] In other embodiments, a groove may be provided on the outer surface of the friction head 310 , and a protrusion 311 may be provided on the inner wall of the groove 201 .

[0060] In one embodiment, Figure 1 、 Figure 2 and Figure 5 As shown, the transmission structure further includes a switch member 400, which contacts the second transmission member 200 and is used to drive the second transmission member 200 from the first position to the second position. By controlling the switch member 400, the position of the second transmission member 200 can be moved from the first position to the second position, thereby disengaging the second transmission member 200 from the second mating member 20.

[0061] In one embodiment, Figure 3 and Figure 4As shown, one end of the switch member 400 contacts the second transmission member 200, and the other end of the switch member 400 is the operating end. A hinged portion 410 is provided on the switch member 400 for hinged connection. By pressing the operating end of the switch member 400, the hinged portion 410 secures the switch member and transmits torque. The other end of the switch member 400, excluding the operating end, contacts the second transmission member 200, thereby controlling the position of the second transmission member 200.

[0062] In other embodiments, a first electromagnet may be provided on the switch member 400, and a second electromagnet may be provided near the switch member 400, and the first electromagnet and the second electromagnet may be attracted or repelled by energizing, thereby causing the switch member 400 to drive the second transmission member 200 to move; or a hydraulic cylinder may be provided to push the switch member 400, thereby driving the second transmission member 200 to move.

[0063] In one embodiment, Figure 3 、 Figure 5 and Figure 6 As shown, a transmission portion and a contact portion 202 are provided on the side of the second transmission member 200 away from the first transmission member 100. The transmission portion is configured to contact the docking member 300, while the contact portion 202 is configured to contact the switch member 400. The contact portion 202 surrounds the transmission portion, and the end of the switch member 400 closest to the contact portion 202 is an annular structure that sleeves over the docking member 300. The transmission portion contacts the docking member and transmits power through friction, while the contact portion 202 is configured to contact the switch member 400. Both the transmission portion and the docking member are in a rotating state before disengagement. One end of the switch member 400 is an annular structure that sleeves over the docking member 300, allowing for more complete contact with the second transmission member 200 and ensuring that the second transmission member 200 can be moved to a position that disengages from the docking member 300.

[0064] Optionally, the annular structure is clearance-matched with the docking member 300. In this case, the annular structure on the switch member 400 does not contact the docking member 300, and the two do not affect each other.

[0065] In one embodiment, Figure 3 and Figure 4 As shown, the first transmission member 100 is provided with a first guide hole 101, and the second transmission member 200 extends into the first guide hole 101. A first assembly portion 210 is provided on the outer wall of the second transmission member 200, and a second assembly portion is provided on the first transmission member 100. One of the first assembly portion 210 and the second assembly portion is a slide groove, and the other is a slider that slidably cooperates with the slide groove. The first assembly portion 210 and the second assembly portion can guide the first transmission member 100 and the second transmission member 200 during relative movement. At the same time, the first assembly portion 210 and the second assembly portion can enable the first transmission member 100 and the second transmission member 200 to rotate synchronously, without being affected by the relative movement of the first transmission member 100 and the second transmission member 200.

[0066] In other embodiments, the first guide hole 101 may be provided on the second transmission member 200 , and the first transmission member 100 is configured to extend into the first guide hole 101 , which can also achieve the above-mentioned effect.

[0067] In one embodiment, Figure 3 and Figure 4 As shown, the first transmission member 100 includes an end cap 110 and a sleeve 120 connected together. The sleeve 120 encloses a first guide hole 101. The end cap 110 is disposed at one end of the sleeve 120. An elastic member 500 is disposed within the first guide hole 101. The ends of the elastic member 500 respectively abut the end cap 110 and the second transmission member 200. The elastic member 500 enables the first transmission member 100 and the second transmission member 200 to return to their original position after relative displacement.

[0068] Specifically, the elastic member 500 is used to move the second transmission member 200 in a direction away from the first transmission member 100 so that the second transmission member 200 and the first transmission member 100 maintain contact with each other in the absence of external force.

[0069] In one embodiment, Figure 3 and Figure 4 As shown, the end of the sleeve 120 away from the end cap 110 is bent inward to form a stopper 121. The stopper 121 encloses a second guide hole that communicates with the first guide hole 101. The second transmission member 200 includes a first sub-section 220 and a second sub-section 230 that are connected. The first sub-section 220 mates with the first guide hole 101, and the second sub-section 230 mates with the second guide hole. The stopper 121 can limit the first sub-section 220 to prevent the first transmission member 100 from separating from the second transmission member 200.

[0070] In one embodiment, a second assembly portion is provided on the inner wall of the second guide hole, and a first assembly portion 210 is provided on the outer surface of the second sub-portion 230. The first assembly portion 210 on the second sub-portion 230 cooperates with the second assembly portion on the inner wall of the second guide hole to guide the relative displacement of the first transmission member 100 and the second transmission member 200.

[0071] In other embodiments, the second assembly portion may also be disposed on the inner wall of the first guide hole 101 , and the first assembly portion 210 may also be disposed outside the second sub-portion 230 .

[0072] In one embodiment, Figure 1 As shown, the other of the first mating member 10 and the second mating member 20 is a fan blade. In this case, the driving member can drive the fan blade to rotate, and when the fan blade no longer drives the driving member to rotate due to the relative movement of the first transmission member 100 and the second transmission member 200, the driving member is still in operation and can be used to drive other loads to achieve more functions.

[0073] like Figure 1 、 Figure 2 and Figure 5 As shown, one embodiment discloses a blowing device, comprising a first matching member 10, a second matching member 20 and a transmission structure as described above.

[0074] The above-mentioned blowing device and the above-mentioned transmission structure, the first transmission member 100 can be transmission-coordinated with the first matching member 10, the first transmission member 100 can be transmission-coordinated with the second transmission member 200, and the first transmission member 100 and the second transmission member 200 can move relatively. When the second transmission member 200 moves to the first position relative to the first transmission member 100, the second transmission member 200 is transmission-coordinated with the second matching member 20. At this time, a continuous transmission coordination of the first matching member 10, the first transmission member 100, the second transmission member 200 and the second matching member 20 can be formed. Since one of the first matching member 10 and the second matching member 20 is a driving member, the driving member can be transmission-coordinated with the other of the first matching member 10 and the second matching member 20 through the first transmission member 100, the second transmission member 200, and when the second matching member 10 When the transmission member 200 moves to the second position relative to the first transmission member 100, the second transmission member 200 disengages from the second matching member 20, and the driving member can no longer drive the other of the first matching member 10 and the second matching member 20. Therefore, by adjusting the relative positions of the first transmission member 100 and the second transmission member 200, the first transmission member 100 and the second transmission member 200 can be made to engage or disengage in transmission, and the driving member can drive the other of the first matching member 10 and the second matching member 20, or the driving member continues to output power but does not drive the other of the first matching member 10 and the second matching member 20. If the driving member also drives other loads, whether the current load is running will not affect the operation of other loads. The load can continue to run when the current load is not rotating, and more functions can be achieved.

[0075] Optionally, the blowing device may be a tower fan or an ordinary fan.

[0076] In one embodiment, Figure 1 、 Figure 2 and Figure 5 As shown, the above-mentioned blowing device also includes a third matching member 40, the second matching member 20 is a driving member, and the first matching member 10 is a fan blade. The second matching member 20 and the third matching member 40 are in transmission cooperation. Through the transmission structure, the fan blade and the third matching member 40 can operate under the drive of the driving member. When the second transmission member 200 is separated from the first transmission member 100, the fan blade stops operating, while the third matching member 40 can continue to operate under the drive of the driving member. The operating state of the third matching member 40 can be desynchronized with the fan blade, which can realize more functions.

[0077] Optionally, there are two first transmission members 100 and two second transmission members 200, one of which is provided between the driving member and the third matching member 40, so as to enable the driving member and the third matching member 40 to be transmitted or disengaged.

[0078] In one embodiment, Figure 1 、 Figure 2 and Figure 5 As shown, the third mating member 40 is a fan blade. When the second transmission member 200 contacts the first transmission member 100, the first mating member 10 and the third mating member 40 rotate simultaneously, driven by the second mating member 20, for blowing air. When the second transmission member 200 disengages from the first transmission member 100, the first mating member 10 stops rotating, while the third mating member 40 continues rotating, which can be used to control the air volume or air outlet at different positions.

[0079] In other embodiments, the third matching member 40 may also be other functional members. For example, the third matching member 40 may be a roller assembly that can move under the drive of a driving member.

[0080] In one embodiment, Figure 1 and Figure 5 As shown, the first matching member 10 and the third matching member 40 are arranged on both sides of the second matching member 20 along the same straight line. At this time, the first matching member 10 and the third matching member 40 can discharge air at the same time, or the third matching member 40 can discharge air alone, which can achieve the adjustment of wind force or air outlet area.

[0081] Optionally, the driving member is a double-shaft motor, which can be used to drive the first matching member 10 and the third matching member 40 at the same time.

[0082] In other embodiments, the driving member may also be a single-shaft motor, and the first mating member 10 and the third mating member 40 may be mated with different parts of the driving member's transmission shaft, so that the operations of the first mating member 10 and the third mating member 40 do not affect each other.

[0083] In one embodiment, Figure 1 and Figure 2 As shown, the blowing device further includes a housing and a bearing 50. The bearing 50 is sleeved around the first transmission member 100. The first mating member 10, the second mating member 20, the transmission structure, and the bearing 50 are all disposed within the housing. The bearing 50 limits the position of the first transmission member 100 within the housing without affecting its rotation.

[0084] Optionally, the hinge portion 410 of the switch member 400 is hinged to the housing to facilitate operation.

[0085] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

[0087] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0088] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0089] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0090] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0091] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

Claims

1. A transmission structure, characterized in that: include: A first transmission member, the first transmission member is used for transmission cooperation with the first matching member; and The second transmission member is matched with the first transmission member for transmission, the second transmission member and the first transmission member can move relatively, the second transmission member has a first position and a second position relative to the first transmission member, when the second transmission member is located at the first position, the second transmission member is used for transmission cooperation with the second matching member, when the second transmission member is located at the second position, the second transmission member is disengaged from the second matching member, the second transmission member is used for reciprocating along the direction approaching or away from the second matching member, the second position and the first position are sequentially arranged along the direction approaching the second matching member; the first transmission member is provided with a first guide hole, the second transmission member extends into the first guide hole, and the outer wall of the second transmission member A first assembly portion is provided on the first transmission member, and a second assembly portion is provided on the first transmission member, one of the first assembly portion and the second assembly portion is a slide groove, and the other is a slider slidably matched with the slide groove; the first transmission member includes a connected end cover and a sleeve, the sleeve surrounds the first guide hole, the end cover is arranged at one end of the sleeve, an elastic member is arranged in the first guide hole, and the two ends of the elastic member are respectively against the end cover and the second transmission member; the end of the sleeve away from the end cover is bent inward to form a limiting portion, and the limiting portion surrounds the second guide hole connected with the first guide hole, and the second transmission member includes a first sub-section and a second sub-section connected, the first sub-section matches the first guide hole, and the second sub-section matches the second guide hole; Wherein, one of the first matching member and the second matching member is a driving member; The transmission structure further includes a docking member, one end of which is used to connect with the second matching member, and when the second transmission member is located at the first position, the second transmission member contacts with the other end of the docking member and matches through frictional transmission; The second transmission member is provided with a groove, and the docking member is provided with a friction head matching the groove, the outer surface of the friction head can contact the inner wall of the groove and make the docking member and the second transmission member rotate synchronously; the friction head is hemispherical.

2. The transmission structure according to claim 1, characterized in that: A protrusion is arranged on the outer surface of the friction head, and a clamping groove matching the protrusion is arranged on the inner wall of the groove.

3. The transmission structure according to claim 1, characterized in that: It also includes a switch member, which is in contact with the second transmission member and is used to drive the second transmission member to move from the first position to the second position.

4. The transmission structure according to claim 3, characterized in that: One end of the switch member is in contact with the second transmission member, the other end of the switch member is an operating end, and a hinged portion for hinged connection is provided on the switch member.

5. The transmission structure according to claim 3, characterized in that: A transmission part and a contact part are provided on the side of the second transmission part away from the first transmission part. The transmission part is used to contact the docking part, and the contact part is used to contact the switch part. The contact part is arranged around the transmission part, and one end of the switch part close to the contact part is a ring structure sleeved outside the docking part.

6. The transmission structure according to claim 1, characterized in that: The second assembly portion is disposed on the inner wall of the second guide hole, and the first assembly portion is disposed outside the second sub-portion.

7. The transmission structure according to any one of claims 1 to 6, characterized in that: The other of the first matching piece and the second matching piece is a fan blade.

8. A blowing device, characterized in that: It comprises a first matching piece, a second matching piece and a transmission structure as claimed in any one of claims 1 to 7.

9. The blowing device according to claim 8, characterized in that: It also includes a third matching piece, the second matching piece is a driving piece, the first matching piece is a fan blade, and the second matching piece is in transmission cooperation with the third matching piece.

10. The blowing device according to claim 9, characterized in that: The third matching piece is a fan blade.

11. The blowing device according to claim 10, characterized in that: The first matching piece and the third matching piece are arranged on both sides of the second matching piece along the same straight line direction.

12. The blowing device according to claim 8, characterized in that: It also includes a housing and a bearing. The bearing is sleeved outside the first transmission member. The first matching member, the second matching member, the transmission structure and the bearing are all arranged in the housing.

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