CN212360233U - Transmission structure and blast apparatus - Google Patents

Abstract

The utility model discloses a transmission structure and blast apparatus, the transmission structure includes first driving medium and second driving medium, first driving medium be used for with first fitting piece transmission cooperation, second driving medium and first driving medium transmission cooperation, but second driving medium and first driving medium relative movement, the relative first driving medium of second driving medium removes and has primary importance and second place, when the second driving medium is located the primary importance, the second driving medium is used for cooperating with second fitting piece transmission, when the second driving medium is located the second place, the second driving medium breaks away from with the second fitting piece, wherein, first fitting piece, one of them of second fitting piece is the driving piece. The transmission structure can enable the driving piece to be in transmission fit with the other one of the first fitting piece and the second fitting piece by adjusting the relative positions of the first transmission piece and the second transmission piece, or the driving piece continues to output power but does not drive the other one of the first fitting piece and the second fitting piece, so that more functions can be realized.

Description

Transmission structure and blast apparatus

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a transmission structure and blast apparatus.

Background

Along with the continuous development of the technology, the functional requirements on the fan are more and more, in the traditional fan in the market, a motor shaft is directly connected with fan blades, the motor drives the fan blades to run, but if other loads exist on the motor, the loads can only work or stop simultaneously with the motor and the fan blades, so that the loads cannot work when the current fan blades stop, the use of the loads is limited, the functional limitation is caused, and the use requirements cannot be met.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses lie in overcoming among the prior art defect that other loads can only work simultaneously or stop with current load, provide the transmission structure and the blast apparatus that other loads still can continue to work when current load stops.

The technical scheme is as follows:

a transmission structure comprising:

the first transmission piece is used for being in transmission fit with the first matching piece; and

the second transmission piece is in transmission fit with the first transmission piece, the second transmission piece and the first transmission piece can move relatively, the second transmission piece moves relative to the first transmission piece and has a first position and a second position, when the second transmission piece is located at the first position, the second transmission piece is in transmission fit with the second matching piece, and when the second transmission piece is located at the second position, the second transmission piece is separated from the second matching piece,

wherein one of the first fitting piece and the second fitting piece is a driving piece.

In the transmission structure, the first transmission piece can be in transmission fit with the first fitting piece, the first transmission piece is in transmission fit with the second transmission piece, the first transmission piece and the second transmission piece can move relatively, when the second transmission piece moves to a first position relative to the first transmission piece, the second transmission piece is in transmission fit with the second fitting piece, continuous transmission fit of the first fitting piece, the first transmission piece, the second transmission piece and the second fitting piece can be formed, because one of the first fitting piece and the second fitting piece is the transmission piece, the transmission piece can be in transmission fit with the other one of the first fitting piece and the second fitting piece through the first transmission piece and the second transmission piece, when the second transmission piece moves to a second position relative to the first transmission piece, the second transmission piece is separated from the second fitting piece, and the transmission piece can not continuously drive the other one of the first fitting piece and the second fitting piece, therefore, the first transmission piece and the second transmission piece can be in transmission fit or separated by adjusting the relative position of the first transmission piece and the second transmission piece, the driving piece can drive the other one of the first matching piece and the second matching piece, or the driving piece continues to output power but does not drive the other one of the first matching piece and the second matching piece, if the driving piece drives other loads, whether the current load operates or not does not influence the operation of other loads, the load can still continue to operate when the current load does not rotate, and more functions can be realized.

In one embodiment, the second transmission member is configured to move back and forth in a direction approaching or separating from the second mating member, and the second position and the first position are sequentially arranged in a direction approaching the second mating member.

In one embodiment, the transmission structure further includes an abutting member, one end of the abutting member is used for being connected with the second mating member, and when the second transmission member is located at the first position, the second transmission member is in contact with the other end of the abutting member and is in transmission fit through friction.

In one embodiment, a groove is formed in the second transmission member, a friction head matched with the groove is arranged on the butt joint member, and the outer surface of the friction head can be in contact with the inner wall of the groove to enable the butt joint member and the second transmission member to rotate synchronously.

In one embodiment, the friction head is of a conical structure, and the end face of the friction head, which is close to the second transmission piece, is a plane.

In one embodiment, a protrusion is arranged on the outer surface of the friction head, and a clamping groove matched with the protrusion is arranged on the inner wall of the groove.

In one embodiment, the transmission structure further includes a switch member, wherein the switch member is in contact with the second transmission member and is configured to drive the second transmission member to move from the first position to the second position.

In one embodiment, one end of the switch member is in contact with the second transmission member, the other end of the switch member is an operation end, and a hinge portion for hinging is arranged on the switch member.

In one embodiment, a transmission portion and a contact portion are arranged on a side surface, away from the first transmission member, of the second transmission member, the transmission portion is used for being in contact with the abutting member, the contact portion is used for being in contact with the switch member, the contact portion is arranged around the transmission portion, and one end, close to the contact portion, of the switch member is of an annular structure sleeved outside the abutting member.

In one embodiment, the first transmission member is provided with a first guide hole, the second transmission member extends into the first guide hole, the outer wall of the second transmission member is provided with a first assembling portion, the first transmission member is provided with a second assembling portion, one of the first assembling portion and the second assembling portion is a sliding groove, and the other one is a sliding block in sliding fit with the sliding groove.

In one embodiment, the first transmission member includes an end cover and a shaft sleeve, the shaft sleeve encloses the first guide hole, the end cover is disposed at one end of the shaft sleeve, an elastic member is disposed in the first guide hole, and two ends of the elastic member respectively abut against the end cover and the second transmission member.

In one embodiment, one end of the shaft sleeve, which is far away from the end cover, is bent inwards to form a limiting part, the limiting part surrounds a second guide hole communicated with the first guide hole, the second transmission piece comprises a first branch part and a second branch part which are connected, the first branch part is matched with the first guide hole, and the second branch part is matched with the second guide hole.

In one embodiment, the second assembling portion is arranged on the inner wall of the second guide hole, and the first assembling portion is arranged outside the second sub-portion.

In one embodiment, the other of the first fitting member and the second fitting member is a fan blade.

A blowing device comprises a first fitting piece, a second fitting piece and the transmission structure.

In the blowing device, the first transmission piece can be in transmission fit with the first fitting piece, the first transmission piece is in transmission fit with the second transmission piece, the first transmission piece and the second transmission piece can move relatively, when the second transmission piece moves to a first position relative to the first transmission piece, the second transmission piece is in transmission fit with the second fitting piece, continuous transmission fit of the first fitting piece, the first transmission piece, the second transmission piece and the second fitting piece can be formed, because one of the first fitting piece and the second fitting piece is the transmission piece, the transmission piece can be in transmission fit with the other one of the first fitting piece and the second fitting piece through the first transmission piece and the second transmission piece, when the second transmission piece moves to a second position relative to the first transmission piece, the second transmission piece is separated from the second fitting piece, and the transmission piece can not continuously drive the other one of the first fitting piece and the second fitting piece, therefore, the first transmission piece and the second transmission piece can be in transmission fit or separated by adjusting the relative position of the first transmission piece and the second transmission piece, the driving piece can drive the other one of the first matching piece and the second matching piece, or the driving piece continues to output power but does not drive the other one of the first matching piece and the second matching piece, if the driving piece drives other loads, whether the current load operates or not does not influence the operation of other loads, the load can still continue to operate when the current load does not rotate, and more functions can be realized.

In one embodiment, the blowing device further includes a third fitting member, the second fitting member is a driving member, the first fitting member is a fan blade, and the second fitting member is in transmission fit with the third fitting member.

In one embodiment, the third mating member is a fan blade.

In one embodiment, the first mating member and the third mating member are disposed on two sides of the second mating member along the same linear direction.

In one embodiment, the blowing device further includes a housing and a bearing, the bearing is sleeved outside the first transmission member, and the first fitting member, the second fitting member, the transmission structure and the bearing are all disposed in the housing.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a cross-sectional view of a blowing device when a second transmission member is located at a first position according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of the blowing device when the second transmission member is located at the second position according to the embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 1;

FIG. 4 is an enlarged schematic view at B of FIG. 2;

fig. 5 is an exploded schematic view of a blowing device according to an embodiment of the present invention;

fig. 6 is an enlarged schematic view at C in fig. 5.

Description of reference numerals:

100. the first transmission piece 101, the first guide hole 110, the end cover 120, the shaft sleeve 121, the limiting part 200, the second transmission piece 201, the groove 202, the contact part 210, the first assembly part 220, the first part 230, the second part 300, the butt joint piece 310, the friction head 311, the protrusion 400, the switch piece 410, the hinge part 500, the elastic piece 10, the first fitting piece 20, the second fitting piece 30, the fixing piece 40, the third fitting piece 50 and the bearing.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1 to 4, an embodiment discloses a transmission structure, which includes a first transmission member 100 and a second transmission member 200, wherein the first transmission member 100 is used for being in transmission fit with a first mating member 10, the second transmission member 200 is in transmission fit with the first transmission member 100, the second transmission member 200 is movable relative to the first transmission member 100, the second transmission member 200 has a first position and a second position 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 being in transmission fit with a second mating member 20, when the second transmission member 200 is located at the second position, the second transmission member 200 is separated from the second mating member 20,

wherein, one of the first fitting member 10 and the second fitting member 20 is a driving member.

In the transmission structure, the first transmission member 100 can be in transmission fit with the first mating member 10, the first transmission member 100 can be in transmission fit 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 a first position relative to the first transmission member 100, the second transmission member 200 is in transmission fit with the second mating member 20, at this time, continuous transmission fit of the first mating member 10, the first transmission member 100, the second transmission member 200 and the second mating member 20 can be formed, because one of the first mating member 10 and the second mating member 20 is a driving member, the driving member can be in transmission fit with the other one of the first mating member 10 and the second mating member 20 through the first transmission member 100 and the second transmission member 200, and when the second transmission member 200 moves to a second position relative to the first transmission member 100, the second transmission member 200 is separated from the second mating member 20, the driving member cannot continuously drive the other of the first mating member 10 and the second mating member 20, so that the first driving member 100 and the second driving member 200 can be in transmission fit or separated by adjusting the relative positions of the first driving member 100 and the second driving member 200, the driving member can drive the other of the first mating member 10 and the second mating member 20, or the driving member continuously outputs power but does not drive the other of the first mating member 10 and the second mating member 20, if the driving member also drives other loads, whether the current load operates or not does not affect the operation of other loads, the load can still continuously operate when the current load does not rotate, and more functions can be realized.

The "present load" refers to the other of the first fitting member 10 and the second fitting member 20 except for the driving member.

In one embodiment, as shown in fig. 3 and 4, the second transmission member 200 is configured to move back and forth in a direction approaching or separating from the second fitting member 20, and the second position and the first position are sequentially arranged in a direction approaching the second fitting member 20. When the second transmission member 200 moves to the first position in the direction close to the second fitting member 20, the second transmission member 200 can contact the second fitting member 20 and realize transmission fit, and when the second transmission member 200 moves to the second position in the direction far from the second fitting member 20, the second transmission member 200 can be separated from the second fitting member 20, so that the second fitting member 20 and the second transmission member 200 can not transmit.

Alternatively, the second transmission member 200 moves along the axial direction of the second fitting member 20, wherein the axial direction is the length direction of the rotation center axis of the driving member; or second transmission element 200, moves in the radial direction of second fitting element 20, wherein the radial direction is the radial direction of the drive shaft of the drive element.

Specifically, in the present embodiment, the second transmission member 200 moves along the axial direction of the second fitting member 20, wherein the axial direction is the length direction of the rotation center axis of the driving member.

In one embodiment, as shown in fig. 3 and 4, the transmission structure further includes an abutting element 300, one end of the abutting element 300 is used for connecting with the second engaging element 20, and when the second transmission element 200 is located at the first position, the second transmission element 200 contacts with the other end of the abutting element 300 and is in transmission engagement through friction. When the second transmission member 200 is located at the first position, the second transmission member 200 contacts with one end of the abutting member 300, the friction force generated after the contact enables the second transmission member 200 to be in transmission fit with the abutting member 300, and the other end of the abutting member 300 is connected with the second fitting member 20, so that the second transmission member 200 is in transmission fit with the second fitting member 20. And the friction force transmission fit is mainly realized by the contact between the butting piece 300 and the second transmission piece 200, so that the separation is more convenient.

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 loss is large, and the docking member 300 needs to be replaced in time, and the docking member 300 can be detachably connected to both the second transmission member 200 and the second mating member 20, so that the docking member 300 can be conveniently detached separately for replacement or maintenance.

Specifically, as shown in fig. 5, the transmission structure further includes a fixing member 30, a fixing groove is disposed on an end surface of the docking member 300, the fixing member 30 is fixedly disposed on the insertion portion, and when the insertion portion extends into the insertion hole, the fixing member 30 is matched with the fixing groove, so that circumferential fixing of the docking member 300 and the insertion portion is achieved. Or the one end of the second transmission part 200 far away from the butt joint part 300 is equipped with the jack, the second fitting piece 20 comprises an inserting part, the inserting part is inserted with the jack, a positioning groove is arranged on the outer wall of the inserting part along the circumferential direction, the fixing part 30 penetrates through the butt joint part 300 and extends into the positioning groove, and the detachable connection of the second fitting piece 20 and the butt joint part 300 is realized.

In other embodiments, when second transmission element 200 is located at the first position, the opposite sides of second transmission element 200 and abutting element 300 are respectively provided with transmission teeth engaged with each other, and the transmission engagement between abutting element 300 and second transmission element 200 can also be realized through the engagement of the transmission teeth.

In one embodiment, as shown in fig. 3 and 4, a groove 201 is formed on the second transmission member 200, a friction head 310 matching with the groove 201 is formed on the abutting member 300, and an outer surface of the friction head 310 can contact with an inner wall of the groove 201 to enable the abutting member 300 and the second transmission member 200 to rotate synchronously. The friction head 310 extends into the groove 201, so that the outer surface of the friction head 310 is in contact with the inner wall of the groove 201 to generate friction force, the range of the generated friction force can be limited in the groove 201, external impurities are not easy to enter between the friction head 310 and the inner wall of the groove 201, and the assembly effect of the friction head 310 and the second transmission member 200 is ensured.

Specifically, the second transmission member 200 and the docking member 300 are both rotatable, and when the second transmission member 200 contacts the docking member 300, a tangential friction force is generated on a contact surface, and the tangential friction force is tangential to the rotation directions of the second transmission member 200 and the docking member 300, so that the second transmission member 200 and the docking member 300 can rotate together.

In other embodiments, friction head 310 may be disposed on second transmission member 200, and groove 201 may be disposed on docking member 300.

In one embodiment, as shown in fig. 3 and 4, the friction head 310 has a conical structure, and the end surface of the friction head 310 close to the second transmission element 200 is a flat surface. At this moment, when the front end of the friction head 310 just extends into the groove 201, the gap between the front end of the friction head 310 and the inner wall of the groove 201 is large, even if an error exists during alignment, assembly cannot be influenced, and then along with the fact that the friction head 310 extends into the groove 201, the inner wall of the groove 201 can guide the friction head 310, so that the friction head 310 can be aligned with the second transmission piece 200, and the friction head 310 and the second transmission piece 200 can be ensured to be in contact and realize transmission through friction. In addition, at this time, the size of the friction head 310 is small, and the occupied space is small, but the friction area provided by the friction head 310 is large, so that the transmission effect is ensured.

In other embodiments, the friction head 310 may have other shapes, for example, the friction head 310 may have a hemispherical shape.

In other embodiments, the side of interface element 300 adjacent to second transmission element 200 is a planar structure, which is used to directly contact second transmission element 200 and generate friction.

In one embodiment, as shown in fig. 5 and 6, the friction head 310 is provided with a protrusion 311 on the outer surface, and a locking groove matching with the protrusion 311 is provided on the inner wall of the groove 201. The protrusion 311 on the friction head 310 is matched with the clamping groove on the inner wall of the groove 201, so that friction force can be increased, and transmission efficiency is improved.

Alternatively, the protrusions 311 are plural, and the protrusions 311 are provided at intervals in the circumferential direction of the friction head 310.

In other embodiments, a locking groove is formed on the outer surface of the friction head 310, and a protrusion 311 is formed on the inner wall of the groove 201.

In one embodiment, as shown in fig. 1, fig. 2 and fig. 5, the transmission structure further includes a switch 400, and the switch 400 is in contact with the second transmission member 200 for driving the second transmission member 200 to move 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, so that the second transmission member 200 moves from the first position to the second position, and the second transmission member 200 is separated from the second mating member 20.

In one embodiment, as shown in fig. 3 and 4, one end of the switch member 400 is in contact with the second transmission member 200, the other end of the switch member 400 is an operation end, and the switch member 400 is provided with a hinge portion 410 for hinge connection. At this time, the hinge portion 410 plays a role of fixing and transmitting torque by pressing the operation end of the switch member 400, and the other end of the switch member 400 except the operation end is in contact with the second transmission member 200, thereby controlling the position of the second transmission member 200.

In other embodiments, the first electromagnet may be disposed on the switch 400, the second electromagnet may be disposed near the switch 400, and the switch 400 drives the second transmission member 200 to move by energizing to make the first electromagnet and the second electromagnet attract or repel each other; or a hydraulic cylinder is arranged to push the switch member 400, so as to drive the second transmission member 200 to move.

In one embodiment, as shown in fig. 3, 5 and 6, a transmission portion and a contact portion 202 are disposed on a side surface of the second transmission member 200 away from the first transmission member 100, the transmission portion is configured to contact with the docking member 300, the contact portion 202 is configured to contact with the switch member 400, the contact portion 202 is disposed around the transmission portion, and an end of the switch member 400 close to the contact portion 202 is an annular structure sleeved outside the docking member 300. The transmission part is in contact with the butt joint part and transmits through friction force, the contact part 202 is used for being in contact with the switch piece 400, the transmission part and the butt joint part are in a rotating state before being separated, one end of the switch piece 400 is of an annular structure sleeved outside the butt joint piece 300 and can be more fully in contact with the second transmission piece 200, and the second transmission piece 200 can be guaranteed to be moved to a position separated from the butt joint piece 300.

Optionally, the ring structure is clearance fit with the interface element 300. At this time, the ring structure on the switch member 400 is not in contact with the docking member 300, and the two do not interfere with each other.

In one embodiment, as shown in fig. 3 and 4, the first transmission member 100 is provided with a first guide hole 101, the second transmission member 200 extends into the first guide hole 101, the outer wall of the second transmission member 200 is provided with a first assembling portion 210, the first transmission member 100 is provided with a second assembling portion, one of the first assembling portion 210 and the second assembling portion is a sliding slot, and the other one is a sliding block in sliding fit with the sliding slot. The first assembling portion 210 and the second assembling portion can guide the first transmission member 100 and the second transmission member 200 when they move relatively, and the first assembling portion 210 and the second assembling portion can make the first transmission member 100 and the second transmission member 200 rotate synchronously without being influenced by the relative movement of the first transmission member 100 and the second transmission member 200.

In other embodiments, the first guiding hole 101 may be disposed on the second transmission member 200, and the first transmission member 100 is configured to extend into the first guiding hole 101.

In one embodiment, as shown in fig. 3 and 4, the first transmission member 100 includes an end cover 110 and a shaft sleeve 120 connected to each other, the shaft sleeve 120 encloses a first guide hole 101, the end cover 110 is disposed at one end of the shaft sleeve 120, an elastic member 500 is disposed in the first guide hole 101, and two ends of the elastic member 500 respectively abut against the end cover 110 and the second transmission member 200. The elastic member 500 can restore the first transmission member 100 and the second transmission member 200 after relative displacement.

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 are kept in a contact state without being subjected to an external force.

In one embodiment, as shown in fig. 3 and 4, an end of the shaft sleeve 120 away from the end cap 110 is bent inward to form a limiting portion 121, the limiting portion 121 surrounds a second guide hole communicated with the first guide hole 101, the second transmission member 200 includes a first branch portion 220 and a second branch portion 230 connected, the first branch portion 220 is matched with the first guide hole 101, and the second branch portion 230 is matched with the second guide hole. The limiting portion 121 can limit the first sub-portion 220 to prevent the first transmission member 100 from separating from the second transmission member 200.

In one embodiment, the second guiding hole has a second mounting portion on the inner wall thereof, and the second sub portion 230 has a first mounting portion 210 on the outside thereof. The first assembly portion 210 of the second branch portion 230 is engaged with the second assembly portion of the inner wall of the second guide hole, so that the relative displacement between the first transmission member 100 and the second transmission member 200 can be guided.

In other embodiments, the second assembly portion may be disposed on the inner wall of the first guiding hole 101, and the first assembly portion 210 may be disposed outside the second branch portion 230.

In one embodiment, as shown in fig. 1, the other of the first fitting member 10 and the second fitting member 20 is a fan blade. At this time, the driving member can drive the fan blade to rotate, and when the fan blade does not drive the fan blade to rotate any more by the relative movement of the first transmission member 100 and the second transmission member 200, the driving member is still in a running state, and at this time, the driving member can be used for driving other loads, so as to realize more functions.

As shown in fig. 1, 2 and 5, an embodiment discloses a blowing device, which includes a first fitting 10, a second fitting 20 and a transmission structure as described above.

In the above blowing device, the first transmission member 100 is in transmission fit with the first mating member 10, the first transmission member 100 is in transmission fit with the second transmission member 200, and the first transmission member 100 and the second transmission member 200 are movable relatively, when the second transmission member 200 moves to a first position relative to the first transmission member 100, the second transmission member 200 is in transmission fit with the second mating member 20, at this time, continuous transmission fit of the first mating member 10, the first transmission member 100, the second transmission member 200 and the second mating member 20 can be formed, because one of the first mating member 10 and the second mating member 20 is a transmission member, the transmission member can be in transmission fit with the other one of the first mating member 10 and the second mating member 20 through the first transmission member 100 and the second transmission member 200, and when the second transmission member 200 moves to a second position relative to the first transmission member 100, the second transmission member 200 is separated from the second mating member 20, the driving member cannot continuously drive the other of the first mating member 10 and the second mating member 20, so that the first driving member 100 and the second driving member 200 can be in transmission fit or separated by adjusting the relative positions of the first driving member 100 and the second driving member 200, the driving member can drive the other of the first mating member 10 and the second mating member 20, or the driving member continuously outputs power but does not drive the other of the first mating member 10 and the second mating member 20, if the driving member also drives other loads, whether the current load operates or not does not affect the operation of other loads, the load can still continuously operate when the current load does not rotate, and more functions can be realized.

Alternatively, the blowing device may be a tower fan or a general fan, etc.

In one embodiment, as shown in fig. 1, fig. 2 and fig. 5, the blowing device further includes a third fitting member 40, the second fitting member 20 is a driving member, the first fitting member 10 is a fan blade, and the second fitting member 20 is in driving fit with the third fitting member 40. Through the transmission structure, the fan blade and the third mating member 40 can be driven by the driving member to operate, and after the second transmission member 200 is separated from the first transmission member 100, the fan blade does not operate any more, and the third mating member 40 can still continue to operate under the driving of the driving member, and the operating state of the third mating member 40 can be out of synchronization with the fan blade, thereby realizing more functions.

Optionally, the number of the first transmission pieces 100 and the second transmission pieces 200 is two, and one of the first transmission pieces 100 and one of the second transmission pieces 200 are disposed between the driving piece and the third mating piece 40, so as to enable the driving piece and the third mating piece 40 to be capable of being transmitted or disengaged.

In one embodiment, as shown in fig. 1, 2 and 5, the third mating member 40 is a fan. When the second transmission member 200 contacts the first transmission member 100, the first fitting member 10 and the third fitting member 40 rotate under the driving of the second fitting member 20 to blow air, and when the second transmission member 200 is separated from the first transmission member 100, the first fitting member 10 stops rotating, and the third fitting member 40 can continue rotating to control the air volume or the air outlet at different positions.

In other embodiments, the third engaging element 40 can be other functional elements, for example, the third engaging element 40 can be a roller set, which can move under the driving of the driving element.

In one embodiment, as shown in fig. 1 and 5, the first fitting member 10 and the third fitting member 40 are disposed on both sides of the second fitting member 20 along the same straight direction. At this time, the first fitting piece 10 and the third fitting piece 40 can simultaneously exhaust air, or the third fitting piece 40 exhausts air independently, so that the adjustment of the wind power or the adjustment of the air exhaust area can be realized.

Optionally, the drive member is a double-output shaft motor. Can be used to bring the first fitting member 10 and the third fitting member 40 together.

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 are in transmission engagement with different portions of the transmission shaft of the driving member, so that the operations of the first mating member 10 and the third mating member 40 are not affected by each other.

In one embodiment, as shown in fig. 1 and fig. 2, the blowing device further includes a housing and a bearing 50, the bearing 50 is sleeved outside the first transmission member 100, and the first fitting member 10, the second fitting member 20, the transmission structure and the bearing 50 are all disposed in the housing. The bearing 50 can limit the position of the first transmission member 100 in the housing, and does not affect the rotation of the first transmission member 100.

Optionally, the hinge portion 410 of the switch member 400 is hinged to the housing for easy manipulation.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (19)

1. A transmission structure, comprising:

the first transmission piece is used for being in transmission fit with the first matching piece; and

the second transmission piece is in transmission fit with the first transmission piece, the second transmission piece and the first transmission piece can move relatively, the second transmission piece moves relative to the first transmission piece and has a first position and a second position, when the second transmission piece is located at the first position, the second transmission piece is in transmission fit with the second matching piece, and when the second transmission piece is located at the second position, the second transmission piece is separated from the second matching piece,

wherein one of the first fitting piece and the second fitting piece is a driving piece.

2. The transmission structure according to claim 1, wherein the second transmission member is adapted to reciprocate in a direction toward or away from the second mating member, and the second position and the first position are arranged in order in a direction toward the second mating member.

3. The transmission structure according to claim 2, further comprising an abutting member having one end for connection with the second engaging member, wherein when the second transmission member is located at the first position, the second transmission member is in contact with the other end of the abutting member and is in transmission engagement by friction.

4. The transmission structure according to claim 3, wherein a groove is formed in the second transmission member, a friction head matched with the groove is formed in the butt joint member, and an outer surface of the friction head can contact with an inner wall of the groove to enable the butt joint member and the second transmission member to rotate synchronously.

5. The transmission structure according to claim 4, wherein the friction head is a conical structure, and an end surface of the friction head adjacent to the second transmission member is a flat surface.

6. The transmission structure according to claim 4, wherein a protrusion is provided on an outer surface of the friction head, and a locking groove matched with the protrusion is provided on an inner wall of the groove.

7. The transmission structure according to claim 3, further comprising a switch member in contact with the second transmission member for moving the second transmission member from the first position to the second position.

8. The transmission structure according to claim 7, wherein one end of the switch member is in contact with the second transmission member, and the other end of the switch member is an operation end, and a hinge portion for hinge connection is provided on the switch member.

9. The transmission structure according to claim 7, wherein a transmission portion and a contact portion are disposed on a side of the second transmission member away from the first transmission member, the transmission portion is configured to contact the abutting member, the contact portion is configured to contact the switch member, the contact portion is disposed around the transmission portion, and an end of the switch member close to the contact portion is an annular structure sleeved outside the abutting member.

10. The transmission structure according to claim 2, wherein the first transmission member is provided with a first guide hole, the second transmission member extends into the first guide hole, the outer wall of the second transmission member is provided with a first assembling portion, the first transmission member is provided with a second assembling portion, one of the first assembling portion and the second assembling portion is a sliding groove, and the other one is a sliding block which is in sliding fit with the sliding groove.

11. The transmission structure according to claim 10, wherein the first transmission member includes a connecting end cap and a shaft sleeve, the shaft sleeve encloses the first guide hole, the end cap is disposed at one end of the shaft sleeve, an elastic member is disposed in the first guide hole, and two ends of the elastic member respectively abut against the end cap and the second transmission member.

12. The transmission structure according to claim 11, wherein an end of the shaft sleeve away from the end cap is bent inward to form a limiting portion, the limiting portion defines a second guide hole communicated with the first guide hole, the second transmission member includes a first branch portion and a second branch portion connected, the first branch portion is matched with the first guide hole, and the second branch portion is matched with the second guide hole.

13. The transmission structure according to claim 12, wherein the second fitting portion is provided on an inner wall of the second guide hole, and the first fitting portion is provided outside the second section.

14. The transmission structure according to any one of claims 1 to 13, wherein the other of the first mating member and the second mating member is a fan blade.

15. A blowing apparatus comprising a first fitting member, a second fitting member, and the transmission structure according to any one of claims 1 to 14.

16. The blowing device of claim 15, further comprising a third mating member, wherein the second mating member is a driving member, the first mating member is a fan blade, and the second mating member is in driving engagement with the third mating member.

17. The blowing device of claim 16, wherein the third mating member is a fan blade.

18. The blowing device of claim 17, wherein the first fitting and the third fitting are disposed on both sides of the second fitting in a same linear direction.

19. The blowing device of claim 15, further comprising a housing and a bearing, wherein the bearing is sleeved outside the first transmission member, and the first fitting member, the second fitting member, the transmission structure and the bearing are all disposed in the housing.

Images