JP2021535976A - fan - Google Patents

Abstract

A fan including a housing assembly (10) and a wind guide wheel assembly (20) and an extrusion member (30) is provided. The wind guide wheel assembly (20) is pivotally mounted in the housing assembly (10), the wind guide wheel assembly (20) has mounting holes, and the housing assembly (10) extends inside the mounting holes. It has an existing anti-rotation structure, and the anti-rotation structure has an avoidance space. The extrusion member (30) is pivotally provided in the housing assembly (10), and when the extrusion member (30) rotates, the extrusion end extends into the avoidance space and extrudes the rotation stop structure, so that the rotation stop structure is formed. By deforming and contacting the wall of the mounting hole, the rotation of the wind guide wheel assembly is stopped. The structure of the fan is simple, the assembly efficiency is high, and the rotation of the wind guide wheel is surely stopped. [Selection diagram] Fig. 1

Description

The present invention relates to the technical field of home appliances, and specifically to fans.

A wind guide wheel is installed on the fan to improve the fan's air supply function, but the related technology requires many assembly parts for the wind guide wheel and multiple screws, so the manufacturing cost of the fan is high. Not only is it expensive, but the structure of the fan is also complicated, which reduces the efficiency of assembly.

Since the fan in the related technology cannot reliably stop the rotation of the wind guide wheel, the user cannot reliably switch the air supply mode of the fan by controlling the presence or absence of the rotation of the wind guide wheel. , The practicality of the fan is reduced.

The main object of the present invention is the low assembly efficiency of the fan due to the complicated structure of the fan in the prior art, and the low utility of the fan due to the inability of existing fans to achieve a reliable stop of rotation of the wind guide wheel. Provide fans to solve the problem.

To achieve the above object, the present invention provides a fan, said fan being a housing assembly and a wind guide wheel assembly pivotally provided in the housing assembly, the fan having mounting holes. , The housing assembly has a rotation stop structure, the rotation stop structure extends inside the mounting hole, the rotation stop structure has an avoidance space, the wind guide wheel assembly and the housing assembly are pivotally provided and rotate. When doing so, the extrusion end extends into the avoidance space and extrudes the anti-rotation structure so that the anti-rotation structure deforms and abuts against the wall of the mounting hole, thereby stopping the rotation of the wind guide wheel assembly. Includes extruded members.

In addition, the wind guide wheel assembly includes a wind guide wheel and a shaft sleeve, the wind guide wheel is fixedly connected to the shaft sleeve, the shaft sleeve has mounting holes, and the wind guide wheel is via the shaft sleeve. Is connected to the housing assembly.

In addition, the wind guide wheel is provided with at least one snap-fit hole, the shaft sleeve includes the shaft sleeve body and at least one connection snap provided in the shaft sleeve body, and the connection snap penetrates inside the snap-fit hole. And snap-fit to the stepped structure inside the snap-fit hole.

Further, the mounting holes are formed in the shaft sleeve body, and there are a plurality of connection snaps, and the plurality of connection snaps are installed so as to rotate in the circumferential direction of the mounting holes and are separated from each other.

In addition, the wind guide wheel is provided with an assembly hole, the wall of the assembly hole is provided with at least one anti-rotation notch, and the shaft sleeve further includes at least one anti-rotation protrusion provided on the shaft sleeve body. , The rotation stop protrusion extends inside the rotation stop notch.

Further, the housing assembly includes the front housing, and the front housing is provided on the front housing body, the connection cylinder provided on the front housing body, and the front housing body, and is installed separately around the outer peripheral side of the connection cylinder. Includes multiple mounting snaps, which are snap-fitted to the shaft sleeve after penetrating the mounting snaps.

Further, the front housing further includes a plurality of locking snaps, the plurality of locking snaps being provided on the end face of the connecting cylinder away from the front housing body and spaced apart from each other in the circumferential direction of the connecting cylinder. The snaps form a non-rotating structure and multiple locking snaps surround the avoidance space.

Further, the inner wall surface of the connecting cylinder is provided with a first screw structure, the extrusion member is a cap, the cap includes a cover plate and a mounting cylinder provided on the cover plate, and the outer wall of the mounting cylinder has a cap. Along the direction away from the cover plate, an extrusion and a second screw structure that fits into the first screw structure are sequentially installed, and the extrusion forms an extrusion end.

Further, the extruded protrusions are ring-shaped and are continuously installed around the outer peripheral wall of the mounting cylinder.

Further, a chute is provided on the front housing body at a position facing the connection cylinder, the extrusion member is a cap, and the cap is a cover plate, a mounting cylinder provided on the cover plate, and a mounting cylinder separated from the cover plate. An extruding member (30) provided on the outer wall of the mounting cylinder to extrude a limit snap and a locking snap that penetrates the chute so that the extruding member snap-fits to the front housing. Includes an extrusion cam, which rotates to form an extrusion end.

Further, there are a plurality of extrusion cams, and the plurality of extrusion cams are installed apart from each other around the outer peripheral wall of the mounting cylinder.

Further, the housing assembly includes a front housing and a gland, the front housing is provided with at least one rotary groove, and the gland has a flange at the first axial end, the gland body and the gland body axially. The gland body, including the turnbuckle provided on the end face of the second end, has a shaft sleeve limit limited between the flange and the front housing after passing through the mounting holes.

Further, a connection hole is provided on the end face of the second end in the axial direction of the gland body, the fan further includes a connection member, and the connection member is installed through the connection hole so as to tighten the gland to the front housing. Will be done.

Further, the rotation stop structure is a plurality of elastic buckles, the plurality of elastic buckles are installed apart from each other around the peripheral wall surface of the ground body, and the plurality of elastic buckles are surrounded by an avoidance space.

Further, the front housing is provided with a connecting stay, the outer peripheral wall of the connecting stay is provided with a third screw structure, the extrusion member is a cap, and the cap is provided on the cover plate and the cover plate. An extruded cylinder provided on the wall with a fourth threaded structure that engages with a third threaded structure, and an extruded cylinder provided on the cover plate and sleeved on the outer peripheral side of the mounting cylinder to form an extruded end. And, including.

Applying the technical solution of the present invention, the wind guide wheel assembly is attached to the housing assembly, the housing assembly has a rotation stop structure, and an extrusion member is utilized to be engaged with the rotation stop structure, and the wind guide wheel. Achieve rotation or reliable rotation stop of the assembly. Specifically, when the extruded end of the extruded member extends to the avoidance space and the anti-rotation structure is extruded, the anti-rotation structure is deformed and abuts on the wall of the mounting hole of the wind guide wheel assembly, thereby causing the wind guide wheel. The assembly stops spinning. The extruded end of the extruded member exits the avoidance space and the wind guide wheel assembly can rotate relative to the housing assembly. The housing assembly of the present application has a rotation stop structure, and simply assembling the wind guide wheel assembly to the housing assembly simplifies the structure of the fan and improves the efficiency of assembling the fan.

The drawings of the specification constituting a part of the present application are for the purpose of providing a further understanding of the present invention, and exemplary embodiments and explanations thereof of the present invention are used for interpreting the present invention. It does not constitute an inappropriate limitation of the invention.

A schematic diagram of the disassembled structure of the fan according to the first embodiment of the present invention is shown. A schematic view of the cross-sectional structure of the fan of FIG. 1 after assembly from one angle is shown. The schematic diagram of the enlarged structure in the part A of FIG. 2 is shown. A schematic diagram of the cross-sectional structure of the fan of FIG. 1 from another angle after assembly is shown. The schematic diagram of the enlarged structure in the part B of FIG. 4 is shown. The schematic view of the assembly structure of the wind guide wheel and the shaft sleeve of the fan of FIG. 1 is shown. The schematic diagram of the enlarged structure in the part C of FIG. 6 is shown. The structural schematic diagram of the wind guide wheel of FIG. 6 is shown. The structural schematic diagram of the shaft sleeve of FIG. 6 is shown. The structural schematic diagram of the front housing of the fan of FIG. 1 is shown. The structural schematic diagram of the extrusion member of the fan of FIG. 1 is shown. A schematic diagram of the disassembled structure of the fan according to the second embodiment of the present invention is shown. A schematic view of the cross-sectional structure of the fan of FIG. 12 after assembly from one angle is shown. A schematic diagram of the enlarged structure in the D portion of FIG. 13 is shown. FIG. 6 shows a schematic view of the cross-sectional structure of the fan of FIG. 12 after assembly from another angle. The schematic diagram of the enlarged structure of the E part of FIG. 15 is shown. The structural schematic diagram of the front housing of the fan of FIG. 12 is shown. The structural schematic diagram of the push member of the fan of FIG. 12 is shown. A schematic diagram of the disassembled structure of the fan according to the third embodiment of the present invention is shown. A schematic view of the cross-sectional structure of the fan of FIG. 19 after assembly is shown. The schematic diagram of the enlarged structure of the F part of FIG. 20 is shown. The structural schematic diagram of the front housing of the fan of FIG. 19 is shown. FIG. 19 shows a schematic structural diagram of the fan ground from one angle. FIG. 23 shows a schematic structure of the ground from another angle. The structural schematic diagram of the push member of the fan of FIG. 19 is shown.

10 Housing assembly 11 Front housing 110 Limit block 111 Front housing body 112 Connection cylinder 113 Mounting snap 114 Locking snap 115 First screw structure 116 Chute 117 Rotating groove 118 Connecting stay 119 Third screw structure 12 Grand 121 Ground body 122 Flange 123 Turnbuckle 124 Elastic buckle 125 Connection hole 20 Wind guide wheel assembly 21 Wind guide wheel 211 Snap fit hole 212 Assembly hole 213 Rotation stop notch 22 Shaft sleeve 221 Mounting hole 222 Shaft sleeve body 223 Connection snap 224 Rotation stop protrusion 30 Extrusion member 31 Cover plate 32 Mounting cylinder 321 2nd screw structure 322 4th screw structure 33 Extruded protrusion 34 Limit snap 35 Extruded cam 36 Extruded cylinder

Hereinafter, the technical solution in the embodiment of the present invention will be clearly and completely described with reference to the drawings in the embodiment of the present invention. Obviously, the examples described are only part, but not all, of the examples of the invention. Hereinafter, the description of at least one exemplary embodiment is merely exemplary in practice and is not used as any limitation to the invention and its application or use. Based on the examples of the present invention, all other examples obtained by those skilled in the art without creative work shall be included in the scope of protection of the present invention.

The present invention solves the problem of low fan assembly efficiency due to the complicated structure of the fan in the prior art, and the problem of low fan utility due to the inability of existing fans to achieve a reliable stoppage of the wind guide wheel. To provide fans.

The present application provides three examples, FIGS. 1 to 11 show Example 1, FIGS. 12 to 18 show Example 2, and FIGS. 19 to 25 show Example 3.

Example 1
As shown in FIG. 1, the fan includes a housing assembly 10, a wind guide wheel assembly 20, and an extrusion member 30, which is pivotally provided in the housing assembly 10. The wind guide wheel assembly 20 has a mounting hole 221 and the housing assembly 10 has a rotation stop structure, the rotation stop structure extends inside the mounting hole 221 and the rotation stop structure is an avoidance space. The extruded member 30 is pivotally provided in the housing assembly 10, and when the extruded member 30 rotates, the extruded end of the extruded member 30 extends into the avoidance space and extrudes the rotation stop structure. The rotation stop structure is deformed to come into contact with the wall of the mounting hole 221 so that the rotation of the wind guide wheel assembly 20 is stopped.

In the present application, the wind guide wheel assembly 20 is attached to the housing assembly 10, and the housing assembly 10 has a rotation stop structure, and the wind guide wheel assembly 20 is engaged with the rotation stop structure by using an extrusion member 30. Achieve rotation or reliable rotation stop. Specifically, when the extruded end of the extruded member 30 extends to the avoidance space and extrudes the rotation stop structure, the rotation stop structure is deformed and abuts on the wall of the mounting hole 221 of the wind guide wheel assembly 20. Wind guide wheel assembly 20 rotations stop. The extruded end of the extruded member 30 exits the avoidance space and the wind guide wheel assembly 20 rotates with respect to the housing assembly 10. The housing assembly 10 of the present application has a rotation stop structure, and the fan structure is simplified and the fan assembly efficiency is improved only by assembling the wind guide wheel assembly 20 to the housing assembly 10.

The fan provided in the present application uses a wind drive method to rotate the wind guide wheel assembly 20, which reduces the power consumption of the fan as compared to a method in which the motor rotates the wind guide wheel assembly 20. The cost of using the fan is reduced.

As shown in FIGS. 1, 6 and 7, the wind guide wheel assembly 20 includes a wind guide wheel 21 and a shaft sleeve 22, which is fixedly connected to the shaft sleeve 22 and has a shaft. The sleeve 22 has a mounting hole 221 and the wind guide wheel 21 is connected to the housing assembly 10 via the shaft sleeve 22. Considering the wear of the wind guide wheel assembly 20 due to engagement with the anti-rotation structure during use, the wind guide wheel assembly 20 was designed to be split into wind guide wheel 21 and shaft sleeve 22 made of different materials. , The shaft sleeve 22 is made of a wear resistant material.

In one embodiment of the present application (not shown), the shaft sleeve 22 and the wind guide wheel 21 are integrally molded.

As shown in FIGS. 6-9, the wind guide wheel 21 is provided with at least one snap-fit hole 211, and the shaft sleeve 22 is provided at least one in the shaft sleeve body 222 and the shaft sleeve body 222. Including the connection snap 223, the connection snap 223 is installed through the inside of the snap fit hole 211 and snap fits into the stepped structure inside the snap fit hole 211. In this way, the wind guide wheel 21 snap-fits to the shaft sleeve 22 to improve fan assembly efficiency and avoid screw loss during fan assembly without the need to install additional parts such as screws. can do. After the wind guide wheel 21 is snap-fitted to the shaft sleeve 22, it is possible to prevent axial relative movement between the wind guide wheel 21 and the shaft sleeve 22, that is, the wind guide wheel 21 is relative to the shaft sleeve 22. It is in a stationary state.

As shown in FIG. 9, the mounting holes 221 are formed in the shaft sleeve main body 222, and there are a plurality of connection snaps 223, and the plurality of connection snaps 223 are installed apart from each other in the circumferential direction of the mounting holes 221. .. By installing a plurality of connection snaps 223, the connection stability between the wind guide wheel 21 and the shaft sleeve 22 is improved.

As shown in FIGS. 8 and 9, the wind guide wheel 21 is provided with an assembly hole 212, the wall of the assembly hole 212 is provided with at least one rotation stop notch 213, and the shaft sleeve 22 further comprises a shaft sleeve body. The rotation stop protrusion 224 includes at least one rotation stop protrusion 224 provided on the 222, and the rotation stop protrusion 224 extends to the inside of the rotation stop notch 213. In this way, after assembling the wind guide wheel 21 and the shaft sleeve 22, the relative rotation between the wind guide wheel 21 and the shaft sleeve 22 is prevented, and the wind guide wheel 21 and the shaft sleeve 22 rotate in synchronization with each other. Or, stop the rotation in synchronization.

As shown in FIGS. 2, 3 and 10, the housing assembly 10 includes a front housing 11, which includes a front housing body 111, a connecting cylinder 112, and a plurality of mounting snaps 113. The connection cylinder 112 is provided on the front housing body 111, the plurality of mounting snaps 113 are provided on the front housing body 111 and are spaced apart around the outer peripheral side of the connection cylinder 112, and the mounting snap 113 is mounted. After penetrating the hole 221 it is snap-fitted to the shaft sleeve 22. In this way, the front housing 11 is snap-fitted to the shaft sleeve 22 so that the wind guide wheel 21 is rotatably installed on the shaft sleeve 22 in the front housing 11. When assembling the shaft sleeve 22 and the front housing 11, the fan assembly efficiency can be further improved without the need to install additional parts such as screws, and the loss of screws during fan assembly can be avoided.

As shown in FIGS. 4, 5 and 10, the front housing 11 further includes a plurality of locking snaps 114, which are provided on the end face of the connecting cylinder 112 away from the front housing body 111. The plurality of locking snaps 114 form a rotation stop structure, and the plurality of locking snaps 114 surround the avoidance space. In this way, the extruded end of the extruded member 30 extrudes the locking snap 114 so that the locking snap 114 is deformed so as to abut and interfere with the wall of the mounting hole 221 of the shaft sleeve 22, whereby the shaft sleeve 22. Prevents the front housing 11 from rotating. Correspondingly, the wind guide wheel 21 connected to the shaft sleeve 22 is prevented from rotating with respect to the front housing 11, and the wind guide wheel assembly 20 reliably realizes rotation stop, and the fan air is supplied. Switch modes to improve fan utility.

As shown in FIG. 10, the front housing 11 further includes a plurality of limit blocks 110, the plurality of limit blocks 110 being provided on the front housing body 111 and installed in the circumferential direction of the connection cylinder 112, and the limits. The block 110 is located between the two mounting snaps 113 and the shaft sleeve 22 has a small engagement gap between the surface of the limit block 110 away from the connecting cylinder 112 and the wall of the mounting hole 221 of the shaft sleeve 22. Prevents the front housing 11 from moving a large distance in the radial direction.

As shown in FIGS. 10 and 11, a first screw structure 115 is provided on the inner wall surface of the connection cylinder 112, the extrusion member 30 is a cap, and the cap is provided on the cover plate 31 and the cover plate 31. On the outer peripheral wall of the mounting cylinder 32 including the mounted mounting cylinder 32, an extrusion protrusion 33 and a second screw structure 321 engaged with the first screw structure 115 are sequentially provided along a direction away from the cover plate 31. The extruded protrusion 33 forms an extruded end. In Example 1 of the present application, the extrusion member 30 is screwed to the front housing 11 and controls the rotation or stop of rotation of the wind guide wheel assembly 20 by controlling the depth of the screwed extrusion member 30. When the extrusion protrusion 33 comes into contact with the locking snap 114 and is screwed to a position where interference occurs, the extrusion protrusion 33 pushes out the locking snap 114 and deforms the locking snap 114.

As shown in FIG. 11, the extrusion projection 33 is ring-shaped and is continuously installed around the outer peripheral wall of the mounting cylinder 32. In this way, the extrusion protrusion 33 can reliably and stably extrude the locking snap 114.

Applying the fan provided in Example 1, the user controls whether the wind guide wheel assembly 20 rotates by tightening or loosening the cap. When the cap is tightened to some extent, the extrusion protrusion 33 pushes out the locking snap 114, and the locking snap 114 interferes with the wall of the mounting hole 221 to form a locking relationship, at which time the rotation of the wind guide wheel assembly 20 stops. To do. Locking when the cap is loosened to some extent, that is, when the extrusion 33 is not in contact with the locking snap 114, or when the extrusion distance of the extrusion 33 with respect to the locking snap 114 is smaller than the gap between the locking snap 114 and the mounting hole 221. The relationship is broken and the wind guide wheel assembly 20 begins to rotate with the wind force of the blades.

Example 2
As shown in FIGS. 12 to 14, Example 2 is the same as Example 1, the shaft sleeve 22 is snap-fitted to the wind guide wheel 21, and the front housing 11 is snap-fitted to the shaft sleeve 22. I won't repeat it here.

The difference between the second embodiment and the first embodiment is that the extrusion member 30 is snap-fitted to the front housing 11. Specifically, as shown in FIGS. 17 and 18, the front housing body 111 is provided with a chute 116 at a position relative to the connecting cylinder 112, the extrusion member 30 is a cap, and the cap is. A cover plate 31, a mounting cylinder 32, a limit snap 34, and an extrusion cam 35 are included, the mounting cylinder 32 is provided on the cover plate 31, and the limit snap 34 is on the end face of the mounting cylinder 32 away from the cover plate 31. The limit snap 34 is provided so that the extrusion member 30 is snap-fitted to the front housing 11 by penetrating the chute 116, the extrusion cam 35 is provided on the outer peripheral wall of the mounting cylinder 32, and the extrusion cam 35 is provided. Form an extruded end. As shown in FIGS. 15 and 16, the extrusion member 30 is rotated so that the extrusion cam 35 extrudes the locking snap 114. As a result, the locking snap 114 is deformed and abuts against the wall of the mounting hole 221 to stop the rotation of the wind guide wheel assembly 20. Continue to rotate the extrusion member 30 to move the extrusion cam 35 between the two locking snaps 114 without further extruding the locking snap 114, thereby freeing the wind guide wheel assembly 20 with respect to the front housing 11. To rotate to.

In the second embodiment, the user can control the rotation of the wind guide wheel assembly 20 by simply rotating the extrusion member 30 in the horizontal direction, or can stably stop the rotation of the wind guide wheel assembly 20, thereby supplying a fan. Switch the wind mode to improve the practicality of the fan.

As shown in FIG. 18, there are a plurality of extrusion cams 35, and the plurality of extrusion cams 35 are installed apart from each other around the outer peripheral wall of the mounting cylinder 32. By installing the plurality of extrusion cams 35, the plurality of locking snaps 114 are engaged with each other in a one-to-one manner.

Applying the fan provided in Example 2, the user controls whether the wind guide wheel assembly 20 rotates by rotating the cap horizontally. When the cap is rotated counterclockwise to some extent, the extrusion cam 35 pushes out the locking snap 114, and the locking snap 114 interferes with the wall of the mounting hole 221 to form a locking relationship. At this time, the rotation of the wind guide wheel assembly 20 stops. When the cap is rotated to some extent around the clock, that is, the extrusion cam 35 does not contact the locking snap 114, or the extrusion distance of the extrusion cam 35 with respect to the locking snap 114 is smaller than the gap between the locking snap 114 and the mounting hole 221. Then, the locking relationship is released, and the wind guide wheel assembly 20 starts to rotate with the wind force of the blade.

Example 3
The difference between Example 3 and Example 1 is that the shaft sleeve 22 and the front housing 11 are no longer snap-fitted, but the gland 12 engages the front housing 11 so that the shaft sleeve 22 is fitted with the flange 122 of the gland 12 and the front. It is restricted between the housing 11 and the housing 11. Specifically, as shown in FIGS. 19-25, the housing assembly 10 includes a front housing 11 and a gland 12, the front housing 11 being provided with at least one rotary groove 117, wherein the gland 12 is provided. The axial first end of the gland body 121 includes the gland body 121 and the turnbuckle 123, the turnbuckle 123 has a flange 122, and the turnbuckle 123 is provided on the end face of the axial second end of the gland body 121. After the body 121 has passed through the mounting holes 221 the shaft sleeve 22 is restricted between the flange 122 and the front housing 11.

It should be noted that the gland body 121 according to the present application limits the shaft sleeve 22 between the flange 122 and the front housing 11 after passing through the mounting hole 221. This means an axial limit, and after assembly, the shaft sleeve 22 can freely rotate with the ground 12 with respect to the front housing 11.

As shown in FIG. 24, a connection hole 125 is provided on the end surface of the second end in the axial direction of the ground body 121, and the fan is further installed through the connection hole 125 to install the ground 12 in the front housing. Includes a connecting member to be fastened to 11.

Illustratively, the connecting member is a screw and the connecting hole 125 is a screw hole.

As shown in FIG. 23, the anti-rotation structure is a plurality of elastic buckles 124, the plurality of elastic buckles 124 are installed spaced apart around the peripheral wall surface of the ground body 121 and avoided by the plurality of elastic buckles 124. The space is surrounded.

As shown in FIGS. 22 and 25, the front housing 11 is provided with a connecting stay 118, the outer peripheral wall of the connecting stay 118 is provided with a third screw structure 119, and the extrusion member 30 is a cap. Yes, the cap includes a cover plate 31, a mounting cylinder 32, and an extrusion cylinder 36. The mounting cylinder 32 is provided on the cover plate 31, a fourth screw structure 322 engaged with the third screw structure 119 is provided on the inner wall surface of the mounting cylinder 32, and the extrusion cylinder 36 is provided on the cover plate 31. A sleeve is formed on the outer peripheral side of the mounting cylinder 32, and the extrusion cylinder 36 forms an extrusion end.

Thus, when assembling the fan, the wind guide wheel assembly 20 is placed in the front housing 11, the gland 12 is screwed into the rotary groove 117 through the turnbuckle 123 after passing through the mounting hole 221 of the shaft sleeve 22. The gland 12 is fixedly connected to the front housing 11 via the connecting member, and the extruding member 30 is rotated so that the extruding cylinder 36 of the extruding member 30 extends inside the gland 12 and extrudes the elastic buckle 124. , The elastic buckle 124 is deformed to abut against the wall of the mounting hole 221 so that the rotation of the wind guide wheel assembly 20 is stopped. The extrusion member 30 is rotated in the opposite direction so that the extrusion cylinder 36 no longer extrudes the elastic buckle 124, thereby allowing the wind guide wheel assembly 20 to rotate freely with the ground 12 with respect to the front housing 11. ..

Applying the fan provided in Example 3, the user controls whether the wind guide wheel assembly 20 rotates by tightening or loosening the cap. When the cap is tightened to some extent, the extrusion cylinder 36 extrudes the elastic buckle 124, and the elastic buckle 124 interferes with the wall of the mounting hole 221 to form a locking relationship, at which time the rotation of the wind guide wheel assembly 20 causes rotation. Try to stop. Locking when the cap is loosened to some extent, that is, when the extrusion cylinder 36 is not in contact with the elastic buckle 124 or the extrusion distance of the extrusion cylinder 36 with respect to the elastic buckle 124 is smaller than the gap between the elastic buckle 124 and the mounting hole 221. The relationship is broken and the wind guide wheel assembly 20 begins to rotate with the blade wind force.

From the above description, it can be seen that the above-mentioned embodiment of the present invention can realize the following technical effects. The fan structure provided by this application is simple, has few parts, does not require a motor to rotate the wind guide wheel assembly 20, is driven by wind power, and is more efficient to assemble when compared to fans in related technology. taller than. Specifically, Example 1 and Example 2 require only four parts, Example 3 requires only five parts, and both Example 1 and Example 2 are screw-fixed. Not required, Example 3 requires only one screw, thereby improving fan assembly efficiency, effectively saving operating time, reducing labor costs, and of the screws generated during assembly. Loss can be avoided. The wind guide wheel assembly 20 can rotate smoothly or stop rotating stably so that the fan has better wind guide performance. In the present application, the rotation adjustment structure of the new wind guide wheel is designed so that the wind guide wheel assembly 20 rotates more stably, and the wind guide performance of the entire machine becomes more preferable.

It should be noted that the terms used herein are for illustration purposes only and are not intended to limit the exemplary embodiments according to the present application. The singular form used in the text is intended to include the plural, unless the context explicitly indicates otherwise. It should be noted that when the terms "include" and / or "provide" are used in the text, it indicates that there are features, steps, actions, devices, assemblies and / or combinations thereof.

Unless otherwise specified, the relative arrangements, mathematical formulas and numerical values of the members and steps described in these examples do not limit the scope of the present invention. At the same time, for ease of explanation, it should be understood that the size of each part shown in the drawing is not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of skill in the art in the relevant field may not be described in detail, but the techniques, methods and equipment described above should be considered as part of the authorization specification as appropriate. In all the examples shown and described herein, any particular value should be construed as an example only and not as a limitation. Therefore, other examples of the exemplary embodiment may have different values. In the drawings below, similar reference numbers and letters indicate similar items, so after defining an item that is one drawing, there is no need for further explanation in subsequent drawings.

In the description of the present invention, orientations or positions indicated by orientation terms such as "front, back, top, bottom, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom". Relationships are typically based on the orientation or positional relationships shown in the drawings and are used only to facilitate and simplify the description of the present invention. Unless otherwise stated, the terms used to indicate these orientations do not imply or imply that the device or element referred to has a particular orientation or is configured and operated in a particular orientation. It cannot be understood as a limitation of the scope of protection. The term "inside, outside" refers to the inside and outside of the contour of each member itself.

For ease of explanation, we use spatially relative terms such as "above ...", "above ...", "above ...", "above ...", as shown in the figure. It is used to describe the spatial positional relationship between one device or feature and another device or feature. It should be understood that the spatial relative terminology is intended to include different orientations during use or operation other than the orientations of the devices shown in the figure. For example, if a device in a drawing is flipped, it may be described as "above another device or structure" or "above another device or structure" and then "below another device or structure" or. Defined as "under other device or structure". Therefore, the exemplary term "upper side of ..." may include two orientations, "upper side of ..." and "lower side of ...". The device can be positioned in other different ways (rotated at 90 degrees or placed in other orientations), and the spatial relative description used herein can be construed accordingly.

It should be noted that, as a matter to be explained, limiting parts by terms such as "first" and "second" is for distinguishing corresponding parts, and unless otherwise specified, the above terms are used. Has no special meaning and should not be understood as a limitation on the scope of protection of the present invention.

It should be noted that the terms used herein are for illustration purposes only and are not intended to limit the exemplary embodiments of the present application. The singular form used in the text is intended to include the plural, unless the context explicitly indicates otherwise. It should be noted that when the terms "include" and / or "provide" are used, it indicates that there are features, steps, actions, devices, assemblies and / or combinations thereof.

Terms such as "first" and "second" in the specification and claims of the present application and in the above drawings are used to distinguish similar objects and necessarily describe a particular order or arrangement before and after. Please note that it is not used for. The data used in this way can be exchanged in appropriate circumstances so that the embodiments of the present application described herein can be performed in an order other than those shown or described herein. Please understand.

The above description is merely a preferred embodiment of the invention and is not used to limit the invention. For those skilled in the art, the invention can have various modifications and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the invention should be included in the scope of protection of the invention.

Claims (15)

Being a fan
Housing assembly (10) and
A wind guide wheel assembly (20) pivotally provided in the housing assembly (10), the housing assembly (10) has a mounting hole (221), and the housing assembly (10) has a rotation stop structure. The anti-rotation structure extends inside the mounting hole (221), and the anti-rotation structure has a wind guide wheel assembly (20) having an avoidance space.
It is pivotally provided in the housing assembly (10), and when it rotates, the extrusion end extends to the avoidance space to push out the rotation stop structure, and the rotation stop structure is deformed to the mounting hole (221). ), The extruded member (30), which stops the rotation of the wind guide wheel assembly (20) by abutting against the wall.
,fan. The wind guide wheel assembly (20) includes a wind guide wheel (21) and a shaft sleeve (22), the wind guide wheel (21) being fixedly connected to the shaft sleeve (22) and the shaft sleeve. 22) has the mounting hole (221), wherein the wind guide wheel (21) is connected to the housing assembly (10) via the shaft sleeve (22). The fan described in 1. The wind guide wheel (21) is provided with at least one snap-fit hole (211), and the shaft sleeve (22) is provided with at least one provided in the shaft sleeve body (222) and the shaft sleeve body (222). Including the connection snap (223), the connection snap (223) is provided through the inside of the snap fit hole (211) and is snap-fitted to the stepped structure inside the snap fit hole (211). The fan according to claim 2, wherein the fan is characterized by the above. The mounting hole (221) is formed in the shaft sleeve main body (222), and there are a plurality of the connecting snaps (223), and the plurality of connecting snaps (223) are in the circumferential direction of the mounting hole (221). The fan according to claim 3, wherein the fan is rotated and installed at a distance. The wind guide wheel (21) is provided with an assembly hole (212), the wall of the assembly hole (212) is provided with at least one rotation stop notch (213), and the shaft sleeve (22) is further provided. It comprises at least one rotation stop projection (224) provided on the shaft sleeve body (222), wherein the rotation stop projection (224) extends to the inside of the rotation stop notch (213). The fan according to claim 3. The housing assembly (10) includes a front housing (11), the front housing (11).
Front housing body (111) and
The connection cylinder (112) provided in the front housing main body (111) and
It is provided on the front housing main body (111), is installed apart from the outer peripheral side of the connection cylinder (112), penetrates the mounting hole (221), and then snap-fits to the shaft sleeve (22). The fan according to any one of claims 2 to 5, wherein the fan comprises a plurality of mounting snaps (113). The front housing (11) further includes a plurality of locking snaps (114), the plurality of locking snaps (114) being provided on the end face of the connecting cylinder (112) away from the front housing body (111). The locking snaps (114) are spaced apart from each other in the circumferential direction of the connecting cylinder (112), the plurality of locking snaps (114) form the rotation stop structure, and the avoidance space is surrounded by the plurality of locking snaps (114). The fan according to claim 6, wherein the fan is characterized in that. A first screw structure (115) is provided on the inner wall surface of the connection cylinder (112), the extrusion member (30) is a cap, and the caps are a cover plate (31) and a cover plate (31). Including the mounting cylinder (32) provided in the mounting cylinder (32), the outer peripheral wall of the mounting cylinder (32) has an extrusion protrusion (33) and a first screw structure along a direction away from the cover plate (31). The fan according to claim 7, wherein a second screw structure (321) fitted to (115) is sequentially installed, and the extrusion protrusion (33) forms the extrusion end. The fan according to claim 8, wherein the extrusion protrusion (33) is ring-shaped and is continuously installed around the outer peripheral wall of the mounting cylinder (32). A chute (116) is provided at a position of the front housing body (111) facing the connection cylinder (112), the extrusion member (30) is a cap, and the cap is a cap.
Cover plate (31) and
The mounting cylinder (32) provided on the cover plate (31) and
It is provided on the end surface of the mounting cylinder (32) away from the cover plate (31) and penetrates the chute (116) so that the extrusion member (30) snap-fits to the front housing (11). , Limit snap (34),
Includes an extrusion cam (35) provided on the outer peripheral wall of the mounting cylinder (32) to rotate the extrusion member (30) to extrude the locking snap (114) to form the extrusion end. , The fan according to claim 7. 10. The 10. fan. The housing assembly (10) includes a front housing (11) and a gland (12), the front housing (11) is provided with at least one rotary groove (117), and the gland (12) is provided with the gland (12).
A gland body (121) having a flange (122) at the first end in the axial direction,
Includes a turnbuckle (123) provided on the end face of the second end in the axial direction of the ground body (121).
The gland body (121) is characterized in that after passing through the mounting hole (221), the shaft sleeve (22) is restricted between the flange (122) and the front housing (11). The fan according to any one of claims 2 to 5. A connection hole (125) is provided on the end surface of the second end in the axial direction of the gland body (121), the fan further includes a connection member, and the connection member includes the gland (12) as the front housing. The fan according to claim 12, wherein the fan is installed through the connection hole (125) so as to be fastened to (11). The rotation stop structure is a plurality of elastic buckles (124), and the plurality of elastic buckles (124) are installed apart from each other around the peripheral wall surface of the ground body (121), and the plurality of elastic buckles (124) are installed. The fan according to claim 12, wherein the avoidance space is surrounded by 124). The front housing (11) is provided with a connecting stay (118), the outer peripheral wall of the connecting stay (118) is provided with a third screw structure (119), and the extrusion member (30) is a cap. Yes, the cap is
Cover plate (31) and
A mounting cylinder (32) provided on the cover plate (31) and having a fourth screw structure (322) engaged with the third screw structure (119) on the inner wall surface.
14. Claim 14 comprising an extruded cylinder (36) provided on the cover plate (31) and sleeved on the outer peripheral side of the mounting cylinder (32) to form the extruded end. Fans listed in.

Images