CN108443200B - Pitching assembly, machine head mechanism and household appliance - Google Patents
Pitching assembly, machine head mechanism and household appliance Download PDFInfo
- Publication number
- CN108443200B CN108443200B CN201810467240.0A CN201810467240A CN108443200B CN 108443200 B CN108443200 B CN 108443200B CN 201810467240 A CN201810467240 A CN 201810467240A CN 108443200 B CN108443200 B CN 108443200B
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- Prior art keywords
- assembly
- pitching
- side wall
- rotating shaft
- bracket
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
- F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a pitching assembly, a machine head mechanism applying the pitching assembly and a household appliance with a pitching function. The every single move subassembly is used for driving the aircraft nose subassembly to rotate along vertical direction, every single move subassembly includes: support, pivot and spacing ball. The bracket is provided with a first end and a second end connected with the first end, the first end is provided with a plurality of spacing holes which are arranged at intervals, and the second end is bent relative to the first end to form an inclined plane; the rotating shaft rotatably penetrates through the bracket, and an accommodating groove is concavely formed in one end face of the rotating shaft; the limiting ball enters and is accommodated in the accommodating groove under the guidance of the inclined plane, and when the machine head assembly rotates to a preset pitching angle in the vertical direction under the driving of the pitching assembly, the limiting ball is limited on the wall of a limiting hole.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a pitching assembly, a machine head mechanism applying the pitching assembly and a household appliance applying the pitching assembly.
Background
In one exemplary technique, a pitch assembly of a fan includes a bracket, a shaft rotatably mounted to the bracket, and a check ball. The support comprises two opposite side walls, wherein a limiting hole is formed in one side wall, and a containing groove for containing a limiting ball is formed in one end face of the rotating shaft. In the process of installing the pitching assembly, the rotating shaft is required to pass through the two side walls in a rotatable mode, and then the limiting balls are installed in the accommodating grooves of the rotating shaft. Because the clearance between the end face and the side wall of the rotating shaft is smaller, the limit ball is difficult to install in the accommodating groove, and therefore the installation efficiency of the pitching assembly is affected.
Disclosure of Invention
In view of the foregoing, the present invention provides a pitch assembly that is intended to be simple to install.
In order to solve the technical problem, the pitch assembly provided by the invention is used for driving a machine head assembly to vertically rotate, and comprises:
the bracket is provided with a first end and a second end connected with the first end, the first end is provided with a plurality of spacing holes which are arranged at intervals, and the second end is bent relative to the first end to form an inclined plane;
a rotating shaft which rotatably passes through the bracket, and one end face of the rotating shaft is concavely provided with a containing groove; a kind of electronic device with high-pressure air-conditioning system
The limiting ball enters and is accommodated in the accommodating groove under the guidance of the inclined plane, and when the machine head assembly rotates to a preset pitching angle in the vertical direction under the driving of the pitching assembly, the limiting ball is limited on the wall of a limiting hole.
Further, the bracket comprises a first side wall and a second side wall opposite to the first side wall, the first side wall comprises the first end and the second end, one end of the rotating shaft rotatably penetrates through the first side wall, and the other end of the rotating shaft rotatably penetrates through the second side wall.
Further, the second end of the first side wall is bent towards the direction of the second side wall to form the inclined plane; the end face of the rotating shaft facing the inclined plane is provided with the accommodating groove.
Further, the second end of the first side wall is bent away from the second side wall to form the inclined plane; the end face of the rotating shaft facing the inclined plane is provided with the accommodating groove.
Further, the pitching assembly further comprises a torsion spring sleeved on the rotating shaft and a limiting piece arranged on the rotating shaft, the torsion spring comprises a first end and a second end which are oppositely arranged, the second side wall is further provided with a stop piece, the first end is limited on the limiting piece, and the second end is stopped on the stop piece.
Further, the second side wall is provided with a plurality of holes arranged at intervals, and the stop piece penetrates through one of the holes to stop the second end of the torsion spring.
Further, the limiting holes are distributed on a circumference taking the intersection point of the rotation central axis of the rotating shaft and the plane where the bracket is located as a circle center and taking the distance between the intersection point and the limiting ball as a radius; and/or the second end is further bent to form a bending section; and/or the inclined surface has an inclination angle ranging from 5 to 45 degrees.
Further, the pitching assembly further comprises an elastic piece accommodated in the accommodating groove, one end of the elastic piece is abutted against the bottom wall of the accommodating groove, and the other end of the elastic piece is abutted against the limiting ball.
The invention also provides a machine head mechanism, which comprises a machine head assembly, a rotating assembly and a pitching assembly, wherein the machine head assembly is connected with the pitching assembly, and the pitching assembly drives the machine head assembly to rotate to a preset pitching angle in the vertical direction; the rotating assembly is connected with the pitching assembly and is positioned below the pitching assembly, and the rotating assembly drives the machine head assembly to rotate in the horizontal direction.
The invention also provides a household appliance capable of pitching, and the household appliance further comprises the pitching assembly.
When the nose assembly is driven by the pitching assembly to rotate to a preset pitching angle in the vertical direction, the limiting ball is limited on the wall of the corresponding limiting hole, so that the nose assembly can be kept stable at the preset pitching angle. Because the second end of the bracket is bent relative to the first end to form an inclined plane, the gap between the second end of the bracket and the end face of the rotating shaft is enlarged, so that when the limiting ball is installed in the accommodating groove, the limiting ball can roll along the inclined plane to be accommodated in the accommodating groove under the guidance of the inclined plane, and the nose assembly has the advantage of simplicity and convenience in installation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a pitch assembly according to the present invention.
Fig. 2 is a schematic view of another embodiment of a pitch assembly according to the present invention.
Fig. 3 is a cross-sectional view of the pitch assembly shown in fig. 1.
Fig. 4 is a schematic plan view of a pitch assembly according to the present invention.
Fig. 5 is a schematic view of another angle of the pitch assembly of fig. 1.
Fig. 6 is a schematic view of a further angle of the pitch assembly shown in fig. 1.
FIG. 7 is a schematic view of a nose mechanism according to an embodiment of the present invention.
FIG. 8 is a cross-sectional view of an embodiment of the handpiece mechanism of FIG. 7.
Fig. 9 is a schematic view of a part of the structure of the head mechanism shown in fig. 7.
Fig. 10 is a schematic view of a part of the structure of the head mechanism shown in fig. 7.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "mounted" 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.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1-6, the present invention provides a pitch assembly 10 for driving a nose assembly 30 for vertical rotation.
The pitch assembly 10 comprises:
the bracket 11, the bracket 11 has a first end 1111 and a second end 1113 connected to the first end 1111, the first end 1111 is provided with a plurality of spacing holes 1112 arranged at intervals, and the second end 1113 is bent relative to the first end 1111 to form an inclined surface 1114;
a rotating shaft 13, wherein the rotating shaft 13 rotatably passes through the bracket 11, and an end surface of the rotating shaft 13 is concavely provided with a containing groove 1321; a kind of electronic device with high-pressure air-conditioning system
The limiting ball 15 enters and is accommodated in the accommodating groove 1321 under the guidance of the inclined surface 1114, and when the nose assembly 30 is driven by the pitching assembly 10 to rotate to a preset pitching angle in the vertical direction, the limiting ball 15 is limited on the wall of the corresponding limiting hole 1112.
The number of the limiting holes 1112 may be 8-15. The number of the limiting holes 1112 may be 8, 9, 10, 11, 12, 13, 14, or 15.
In an embodiment of the present invention, 10 limiting holes 1112 may be provided, and the angle a of rotation of the nose assembly 30 after the limiting ball 15 moves from one of the limiting holes 1112 to another adjacent limiting hole 1112 is in the range of 5 ° to 20 °, optionally, a is 5 °, 6 °, 7 °, 8 °, 10 °, 11 °, 12 °, 13 °, 14 °, 15 °, 16 °, 17 °, 18 °, 19 °, 20 °, etc. It will be appreciated that the angle a may also be set to other values.
It can be appreciated that the number of the limiting holes 1112 and the spacing between adjacent limiting holes 1112 can be set according to actual needs to adjust the rotation angle of the handpiece assembly 30 after the limiting ball 15 moves from one of the limiting holes 1112 to the other adjacent limiting hole 1112.
It will be appreciated that the diameter of the stop ball 15 may be greater than the diameter of the stop aperture 1112.
The limiting ball 15 is accommodated in the accommodating groove 1321, and in the process that the head assembly 30 is driven by the pitching assembly 10 to rotate to a preset pitching angle in the vertical direction, the limiting ball 15 can roll along the first sidewall 111 and is limited on the wall of the corresponding limiting hole 1112. When the limit balls 15 are limited on the walls of the corresponding limit holes 1112, the nose assembly 30 can be maintained at the pitch angle without slipping down. By the cooperation between the limit ball 15 and the limit hole 1112, the user adjusts the position of the limit ball 15 to move the nose assembly 30 to a suitable pitch angle.
The inclined surface 1114 has an inclination angle ranging from 5 to 45 °. Optionally, the inclination angle is 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 °, or 45 °.
The inclined angle of the inclined surface 1114 is set to 5 to 45 deg. to facilitate the safety of the check ball 15 rolling along the inclined surface 1114 and being accommodated in the accommodation groove 1321.
When the nose assembly 30 of the present invention is driven by the pitching assembly 10 to rotate to a preset pitching angle in the vertical direction, the limiting ball 15 is limited on the wall of a limiting hole 1112, so that the nose assembly 30 can keep stable at the preset pitching angle. Since the second end 1113 of the bracket 11 is bent relative to the first end 1111 to form the inclined surface 1114, the gap between the second end 1113 of the bracket 11 and the end surface of the rotating shaft 13 becomes larger, so that when the limit ball 15 is mounted in the receiving groove 1321, the limit ball 15 can roll along the inclined surface 1114 to be received in the receiving groove 1321 under the guidance of the inclined surface 1114, and the nose assembly 30 of the present invention has the advantage of easy installation.
The bracket 11 includes a first side wall 111 and a second side wall 112 disposed opposite to the first side wall 111, the first side wall 111 includes the first end 1111 and the second end 1113, and one end of the rotation shaft 13 rotatably passes through the first side wall 111, and the other end rotatably passes through the second side wall 112.
In an embodiment of the present invention, two ends of the rotating shaft 13 respectively pass through the corresponding first side wall 111 and the corresponding second side wall 112 in a rotatable manner and then are connected to the corresponding connecting wall 311.
In one embodiment of the present invention, the pitch assembly 10 further comprises a first hub 131 and a second hub 133 disposed opposite each other. The first sleeve 131 is disposed on the inner surface of the first sidewall 111, and the second sleeve 133 is disposed on the outer surface of the second sidewall 112. One end of the rotation shaft 13 rotatably penetrates the first side wall 111 and the first sleeve 131, and the other end rotatably penetrates the second side wall 112 and the second sleeve 133.
The first sleeve 131 and the first sidewall 111 may be coupled by a retainer 1311. The retainer 1311 may be a screw or the like.
It will be appreciated that one end of the rotating shaft 13 rotatably passes through the first side wall 111 and the first shaft sleeve 131, and is connected to a connecting wall 311, and the other end rotatably passes through the second side wall 112 and the second shaft sleeve 133, and is connected to the other connecting wall 311, so that when the rotating shaft 13 rotates, the first side wall 111 and the second side wall 112 do not rotate along with the rotating shaft 13, and the connecting wall 311 rotates under the driving of the rotating shaft 13, so that the head assembly 30 can rotate in the vertical direction under the driving of the rotating shaft 13 of the pitching assembly 10.
The second end 1113 of the first sidewall 111 is bent toward the second sidewall 112 to form the inclined surface 1114; the end surface of the rotating shaft 13 facing the inclined surface 1114 is provided with the receiving groove 1321.
During bending of the second end 1113 toward the second side wall 112, a portion of the second end 1113 is separated from the first end 1111 such that the second end 1113 may form a chamfer 1114. The chamfer 1114 may be an outer surface of the second end 1113.
At this time, the end surface of the rotating shaft 13 located outside the second end 1113 is provided with the receiving groove 1321.
It will be appreciated that the portion of the shaft 13 outside the second end 1113 is provided with a protrusion 132, and the surface of the protrusion 132 facing the second end 1113 is provided with the receiving groove 1321.
In an embodiment of the present invention, the second end 1113 is further bent to form a bent section 1115. The bent section 1115 can protect the user from being scratched during the process of installing the limit ball 15.
After the limit ball 15 is guided into and mounted to the receiving groove 1321 through the inclined surface 1114, the rotating shaft 13 can be rotated, so that the limit ball 15 is limited on the wall of a limit hole 1112. The position of the limiting ball 15, which is limited to the hole wall of the limiting hole 1112 closest to the accommodating groove 1321, is defined as an initial position 1117, and the rotating shaft 13 is continuously rotated, so that the limiting ball 15 is separated from the initial position 1117 and is continuously limited to the hole walls of other limiting holes 1112, so that the head assembly 30 has better stability in pitching motion.
According to the technical scheme of the invention, the second end 1113 of the first side wall 111 is bent towards the direction of the second side wall 112 to form the inclined surface 1114, so that the gap between the second end 1113 of the first side wall 111 and the end surface of the rotating shaft 13 is increased, and when the limit ball 15 is mounted in the accommodating groove 1321, the limit ball 15 can enter under the guidance of the inclined surface 1114 and roll along the inclined surface 1114 to be accommodated in the accommodating groove 1321, so that the nose assembly 30 has the advantage of simple and convenient installation.
The pitch assembly 10 further comprises a torsion spring 135 sleeved on the rotating shaft 13 and a limiting member 137 arranged on the rotating shaft 13, the torsion spring 135 comprises a first end 1351 and a second end 1353 which are oppositely arranged, the second side wall 112 is further provided with a stop member 1121, the first end 1351 is limited on the limiting member 137, and the second end 1353 is stopped on the stop member 1223.
It will be appreciated that the torsion spring 135 is always in a normal compressed state. When the head assembly 30 is in the initial position, the torsion spring 135 is in a compressed state, and when the head assembly 30 rotates in the vertical direction, the torsion spring 135 is also in a compressed state.
The stopper 137 may be inserted into the rotation shaft 13 and partially expose the rotation shaft 13.
According to the technical scheme of the invention, the first end 1351 of the torsion spring 135 is limited on the limiting piece 137, the second end 1353 is stopped on the stopping piece 1223, and when the rotating shaft 13 rotates, the torsion spring 135 is screwed up due to the limiting effect of the limiting piece 137 and the stopping effect of the stopping piece 1223, and at the moment, the rotating shaft 13 generates a reactive pretightening force to prevent the machine head assembly 30 from sliding downwards.
The second side wall 112 is provided with a plurality of openings 1121 spaced apart, and the stopper 1121 passes through one of the openings 1121 to stop the second end 1353 of the torsion spring 135.
The stopper 1121 may pass through the second sleeve 133 and the second sidewall 112, connecting the second sleeve 133 and the second sidewall 112. The second sleeve 133 may be provided with a hole corresponding to the opening 1121.
The portion of the stop 1121 passing through the second side wall 112 forms a stop end 1125, the stop end 1125 being referred to as the second end 1353 of the torsion spring 135.
The second side wall 112 of the present invention is provided with a plurality of openings 1121 spaced apart, and the stopper 1121 passes through one of the openings 1121 to stop the second end 1353 of the torsion spring 135.
It is understood that the plurality of openings 1121 may be disposed on the second sidewall 112 in a direction from one side of the second sidewall 112 to the other side. It will be appreciated that by locating the stop 1121 in a different opening 1121, the stop 1121 will vary in terms of the stopping force against the second section 1353 of the torsion spring 135. Accordingly, the location, number and spacing of the openings 1121 may be set as desired and the stopping force of the stop 1121 against the second end 1353 of the torsion spring 135 may be adjusted by locating the stop 1121 in the adapted opening 1121.
In an embodiment of the present invention, the second sleeve 133 is provided with a plurality of openings 1331 spaced apart, the openings 1331 are disposed corresponding to the openings 1121, and the stopper 1121 passes through one of the openings 1121 and the opening 1331 to stop the second end 1353 of the torsion spring 135.
The limiting holes 1112 are distributed on a circumference taking an intersection point of a rotation central axis of the rotating shaft 13 and a plane of the first side wall 111 of the bracket 11 as a circle center and taking a distance between the intersection point and the limiting ball 15 as a radius.
According to the technical scheme of the invention, the limiting holes 1112 are distributed on a circumference taking the intersection point of the rotation central axis of the rotating shaft 13 and the plane of the first side wall 111 as the circle center and the distance between the intersection point and the limiting ball 15 as the radius, so that the spacing between the limiting ball 15 and any limiting hole 1112 is equal, and the limiting ball 15 can be limited in any limiting hole 1112 in the process that the machine head assembly 30 rotates to a preset pitching angle in the vertical direction under the driving of the pitching assembly 10.
The pitch assembly 10 further includes an elastic member 17 accommodated in the accommodation groove 1321, one end of the elastic member 177 abuts against the bottom wall of the accommodation groove 1321, and the other end abuts against the limit ball 15.
The elastic member 17 may be a spring.
It will be appreciated that when the elastic member 17 is mounted in the receiving groove 1321, the elastic member 17 can move along the inclined surface 1114 to be received in the receiving groove 1321 under the guide of the inclined surface 1114, so as to facilitate the mounting of the elastic member 17.
The limiting ball 15 is movably disposed in the receiving groove 1321 through the elastic member 17, and a fixed pre-tightening force is applied to the elastic member 17 through the limiting action of the bottom wall and the first sidewall 111 of the receiving groove 1321, and the elastic member 17 is in a long compressed state. When the nose assembly 30 is tilted up or down in the vertical direction, the limit ball 15 moves from one limit hole 1112 to the other limit hole 1112, and during this process, the elastic member 17 is further compressed and then slowly released, and since the elastic member 17 is always in a long compressed state, after the limit ball 15 moves to the other limit hole 1112, the elastic member 17 applies an elastic force to the limit ball 15 to stop it against the wall of the limit hole 1112 and/or the periphery of the wall of the hole, so that the nose assembly 30 can be kept at a tilt angle without sliding down.
The present invention also provides another embodiment of a pitch assembly 10', the pitch assembly 10' having a similar structure to the pitch assembly 10, the pitch assembly 10' differing from the pitch assembly 10 by: the first shaft sleeve 131' is arranged on the outer surface of the first side wall 111', and the rotating shaft 13' sequentially passes through the first shaft sleeve 131', the first side wall 111', the second side wall 112' and the second shaft sleeve 133'; the first sidewall 111' is bent in a direction away from the second sidewall 112' to form the inclined surface 1114'; the end surface of the rotating shaft 13 facing the inclined surface 1114 'is provided with the receiving groove 1321'.
Specifically, the second end 1113 'of the first sidewall 111' is bent away from the second sidewall 112 'to form the inclined surface 1114'; the end surface of the rotating shaft 13' facing the inclined surface 1114' is provided with the receiving groove 1321'.
During bending of the second end 1113 'in a direction away from the second side wall 112', a portion of the second end 1113 'is separated from the first end 1111' such that the second end 1113 'may form a chamfer 1114'. The chamfer 1114 'may be an inner surface of the second end 1113'.
At this time, the end surface of the rotating shaft 13' located inside the second end 1113' is provided with a receiving groove 1321'.
The second end 1113' of the first sidewall 111' of the present invention is bent along a direction away from the second sidewall 112', and the inclined surface 1114' is formed, so that a gap between the second end 1113' of the first sidewall 111' and the end surface of the rotating shaft 13' is increased, and when the limit ball 15' is mounted in the receiving groove 1321', the limit ball 15' can roll along the inclined surface 1114' under the guidance of the inclined surface 1114' to be received in the receiving groove 1321', so that the nose assembly 30 of the present invention has the advantage of easy installation.
Referring to fig. 7-10, the present invention further provides a nose mechanism 100, including a nose assembly 30 and a rotating assembly 50, and further including a pitching member 10, where the nose assembly 30 is connected to the pitching assembly 10, and the pitching assembly 10 drives the nose assembly 30 to rotate in a vertical direction to a preset pitching angle; the rotating assembly 50 is connected with the pitching assembly 10 and is located below the pitching assembly 10, and the rotating assembly 50 drives the nose assembly 30 to rotate in the horizontal direction.
Since the handpiece mechanism 100 adopts all the technical solutions of all the embodiments, at least the beneficial effects of the technical solutions of the embodiments are provided, and will not be described in detail herein.
The handpiece assembly 30 includes a motor bracket 31, and the motor bracket 31 includes two opposite connection walls 311, and each connection wall 311 is connected to one end of the rotation shaft 13. In an embodiment of the present invention, both ends of the rotating shaft 13 are convexly provided with protruding ends (not shown), and the protruding ends can be connected with the corresponding connecting walls 311. The two ends of the rotating shaft 13 are respectively connected with the corresponding connecting walls 311, so that when the rotating shaft 13 rotates, the connecting walls 311 can be driven to rotate, and the nose assembly 30 can be driven to rotate by the pitching assembly 10.
It will be appreciated that the pitch direction shown in fig. 7 is the direction in which the head assembly 30 rotates in the vertical direction.
In one embodiment of the present invention, the pitch angle ranges are: -30-110, -30-90, -30-100, -20-90, -20-100, -20-120, -10-90, -10-100, -10-110, -10-120, or-10-130, etc.
It will be appreciated that when the pitch angle is set to-30 °, the nose assembly 30 rotates downward in the vertical direction to an angle of 30 ° to the horizontal; when the pitch angle is set to 90 °, the head assembly 30 is rotated to 90 ° in the vertical direction, so that the head assembly 30 blows "toward the top.
Optionally, the pitch angle is: -30 °, -25 °, -20 °, -15 °, -10 °, -5 °, -3 °, 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, or 90 °. It will be appreciated that the nose assembly 30 may be manually adjusted to a desired pitch angle as desired.
It will be appreciated that nose assembly 30 performs a pitching motion along rotational centerline B. The rotation shaft 13 also rotates along the rotation center line B. The nose assembly 30 and the pitch assembly 10 rotate horizontally along the rotation centerline C, i.e., the rotation centerline of the rotor assembly 50 is C.
When the head assembly 30 is tilted up by 90 ° along the rotation center line B, the rotation center line B intersects with the rotation center line C, and the rotation center line D of the motor 33 of the head assembly 30 coincides with the rotation center line C of the rotating assembly 50. At this time, the center of gravity of the nose mechanism 100 is relatively centered, so that the center of gravity of the nose mechanism 100 is relatively stable, and the nose mechanism is not easy to fall over. As the nose assembly 30 is tilted up 90 along the rotational centerline B, the nose assembly 30 blows "upward" toward the top.
The driving mechanism comprises a pitching assembly 10 and a rotating assembly 50, wherein the nose assembly 30 is connected with the pitching assembly 10, the nose assembly 30 rotates to a preset pitching angle in the vertical direction through the pitching assembly 10, the rotating assembly 50 is connected with the pitching assembly 10 and is positioned below the pitching assembly 10, the rotating assembly 50 drives the nose assembly 30 and the pitching assembly 10 to rotate in the horizontal direction, and when the nose assembly 30 is driven by the pitching assembly 10 to be at a preset pitching angle, the nose assembly 30 can also rotate in the horizontal direction under the driving of the rotating assembly 50. Because the rotating assembly 50 is positioned below the pitching assembly 10, the pitching assembly 10 only drives the nose assembly 30 to rotate in the vertical direction, so that the rotating assembly 50 does not perform pitching motion and collision with the pitching assembly 10 is avoided, and therefore, the fan has a larger pitching angle.
Moreover, the pitching assembly 10 is located between the head assembly 30 and the rotating assembly 50, and after the head assembly 30 is driven by the pitching assembly 10 to rotate to a preset angle in the vertical direction, the rotating assembly 50 drives the head assembly 30 and the pitching assembly 10 to rotate in the horizontal direction. Compared with the prior art, the pitching assembly supports the machine head assembly and the left-right shaking assembly, and after the machine head assembly and the left-right shaking assembly rotate to a preset angle along the vertical direction, the left-right shaking assembly also drives the machine head assembly to rotate in the horizontal direction. The technical scheme of the invention can ensure that the fan runs stably and the gravity center is stable, so that the turnover is not easy to occur.
Further, after the head assembly 30 is driven by the pitching assembly 10 to rotate to a predetermined angle in the vertical direction, the rotating assembly 50 drives the head assembly 30 and the pitching assembly 10 to rotate in the horizontal direction. Compared with the prior art, after the machine head assembly and the left and right head shaking assembly rotate to a preset angle along the vertical direction, the fan forms the preset angle between the left and right head shaking assembly and the pitching assembly in the horizontal rotation process, and the left and right head shaking assembly does a back and forth shearing action relative to the pitching assembly. The technical scheme of the invention has the advantage of strong safety, and can not hurt fingers.
The rotation assembly 50 includes a motor bracket 51 for mounting a motor 53 and a connector 52 provided on the motor bracket 51, and the pitch assembly 10 further includes a bottom wall 113 connected to the first side wall 111 and the second side wall 112, and the motor bracket 51 is connected to the bottom wall 113 of the second bracket 11 through the connector 52.
In an embodiment of the present invention, the material of the connecting piece 52 is plastic, and the material of the motor bracket 51 is metal.
According to the technical scheme of the invention, the bottom wall 13 is connected with the first side wall 111 and the second side wall 112, and the bottom wall 13 is also connected with the motor bracket 51 of the rotating assembly 50 through the connecting piece 52, so that the rotating assembly 50 can drive the pitching assembly 10 and the nose assembly 30 to rotate along the horizontal direction through the bottom wall 13, the first side wall 111, the second side wall 112, the connecting piece 52 and the first bracket 31.
The motor 53 has an output shaft 531, and the motor bracket 51 is provided with a through hole (not shown). In one embodiment of the present invention, the output shaft 531 passes through the through hole.
The rotating assembly 50 further comprises a crank 533, a connecting rod 535, a positioning member 537, and a connecting column 536 provided on the positioning member 537, wherein one end of the connecting rod 535 is connected with the crank 533, and the other end is connected with the connecting column 536.
The crank 533 is sleeved on the part of the output shaft 531 penetrating through the through hole.
Link 535 is rotatably connected to connecting post 536.
The motor support 51 comprises a connecting drum 513, wherein the positioning member 537 is provided with a containing cavity 5371, and the connecting drum 513 is rotatably contained in the containing cavity 5371.
The motor 53 drives the handpiece assembly 30 and the pitch assembly 10 to rotate in a horizontal direction via the output shaft 531, crank 533, link 535, connecting post 536, motor bracket 51, support 52 and bottom wall 113.
When the motor 53 in the technical scheme of the invention drives the output shaft 531 to rotate, the output shaft 531 drives the crank 53 to rotate, and drives the connecting rod 535, the connecting piece 52 and the motor bracket 51 connected with the crank 53 to rotate, so as to drive the nose assembly 30 and the pitching assembly 10 to rotate in the horizontal direction.
The drive mechanism also includes a wiring harness 70 and the handpiece assembly 30 includes a motor 33.
The motor bracket 51 is provided with a through hole 511, and the through hole 511 is communicated with the connecting drum 513.
The connecting piece 52 is provided with a through hole 521, and the wire harness 70 sequentially passes through the connecting drum 513, the through hole 511, the through hole 521 and the pitching assembly 10 to be connected with the motor 33, so as to provide electric energy for the motor 33.
The central axes of receiving chamber 5371 and connecting drum 513 may coincide with a rotational center line C of rotating assembly 50 such that rotating assembly 50 is less affected by horizontal rotation of pitch assembly 10 and head assembly 30 during such horizontal rotation, thereby making wire harness 70 less susceptible to wear and longer service life of wire harness 70.
The motor 33 drives the output shaft 331 to rotate, so as to drive the fan blade 35 connected with the output shaft 331 to rotate.
It will be appreciated that the blades 35 of the fan head are rotatable about the central axis D of the output shaft 331.
Further, after the nose assembly 30 is at a pitch angle, the nose assembly 30 rotates left and right along the horizontal rotation center C in the horizontal direction, and the fan blades 35 also rotate around the central axis D, so that a larger negative pressure is generated at the fan head, more air is sucked in, and the fan blades 35 can blow out larger wind with a larger wind speed. Therefore, the fan of the invention has the advantages of long air supply distance and strong wind speed.
In an embodiment of the present invention, the fan blades 35 include a main fan blade 351 and a kilo-leaf 353, a plurality of main fan blades 351 are fixedly arranged on the hub, the kilo-leaf 353 is arranged between adjacent main fan blades 351, and the kilo-leaf 353 and the main fan blades 351 are arranged in a duck-type arrangement in the axial direction of the hub. When the fan head rotates, the air flow on the air inlet side is accelerated by the thousand-leaf 353 to form a separation vortex which interferes with the air flow of the main fan blade 351, and suction force for taking away the backflow accumulated on the front edge of the root of the main fan blade 351 is generated on the suction surface of the main fan blade 351, so that the air flow on the front edge of the root of the main fan blade 351 is smooth, the actual acting area is increased, and therefore, the inner flow quality of the fan head is good and the efficiency is high. The fan head has larger air supply range, longer air supply distance and faster air speed.
Generally, the position of the thousand leaves 353 in the axial direction of the hub is upstream of the main blades 351 with respect to the air flow flowing through the fan head, so that the quality of the flow in the fan head is better.
In the embodiment of the present invention, the main fan blade 351 and the kilo blade 353 are respectively designed for forward bending and backward bending, and the kilo blade 353 adopts a backward bending front edge and a straight rear edge, and the rear edge has a forward-bending angle. Wherein, the thousand leaves 353 and the main fan blades 351 are arranged on the hub in an upper duck type layout. It should be noted that, the kilo-leaf 353 and the main fan blade 351 may be arranged on the hub in a lower duck-type layout, so as to enhance the flexibility of the fan head design. It should be appreciated that the main fan blade 351 may also be a swept or straight blade design.
The handpiece mechanism 100 further includes a mask 37, and the fan blades 35 are accommodated in the mask 37.
An output shaft 331 of the motor 33 is connected to the fan blade 35 through the mask 37.
The invention also provides a household appliance with the pitching function. The household appliance may be a fan, an electric fan, a hand-held fan, a ceiling fan, or a warmer, etc.
The household appliance adopts all the technical schemes of all the embodiments, so that the household appliance has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted.
In one embodiment of the invention, the household appliance is a fan, which includes a support assembly. The fan also includes the handpiece mechanism 100, and the support assembly supports the handpiece mechanism. In one embodiment of the invention, the fan may include a post 90, and the post 90 may have a cylindrical structure. The rotating assembly 50 is disposed on the upright 90. So that no shearing action is generated between the rotating assembly 50 and the upright 90, preventing the user's hand from being pinched.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).
Claims (7)
1. A pitch assembly for driving a nose assembly to rotate in a vertical direction, the pitch assembly comprising:
the bracket is provided with a first end and a second end connected with the first end, the first end is provided with a plurality of spacing holes which are arranged at intervals, and the second end is bent relative to the first end to form an inclined plane;
a rotating shaft which rotatably passes through the bracket, and one end face of the rotating shaft is concavely provided with a containing groove; a kind of electronic device with high-pressure air-conditioning system
The limiting ball enters and is accommodated in the accommodating groove under the guidance of the inclined plane, and when the machine head assembly is driven by the pitching assembly to rotate to a preset pitching angle in the vertical direction, the limiting ball is limited on the wall of a limiting hole;
in the process of installing the pitching assembly, the rotating shaft is firstly penetrated through the bracket in a rotatable way, and then the limiting ball is arranged in the accommodating groove of the rotating shaft;
the bracket comprises a first side wall and a second side wall which is arranged opposite to the first side wall, the first side wall comprises a first end and a second end, one end of the rotating shaft rotatably penetrates through the first side wall, and the other end of the rotating shaft rotatably penetrates through the second side wall;
the second end of the first side wall is bent towards the second side wall to form the inclined plane; the end face of the rotating shaft facing the inclined plane is provided with the accommodating groove; or, the second end of the first side wall is bent along the direction away from the second side wall to form the inclined plane; the end face of the rotating shaft facing the inclined plane is provided with the accommodating groove.
2. The pitch assembly of claim 1, further comprising a torsion spring disposed about the shaft and a stop member disposed about the shaft, the torsion spring including a first end and a second end disposed opposite each other, the second side wall further including a stop member, the first end being positioned at the stop member and the second end being positioned at the stop member.
3. The pitch assembly of claim 2, wherein the second side wall defines a plurality of spaced apart openings, the stop passing through one of the openings to stop the second end of the torsion spring.
4. The pitch assembly of claim 1, wherein the limiting holes are distributed on a circumference taking an intersection point of a rotation central axis of the rotating shaft and a plane of the bracket as a center of a circle and taking a distance between the intersection point and the limiting ball as a radius; and/or the second end is further bent to form a bending section; and/or the inclined surface has an inclination angle ranging from 5 to 45 degrees.
5. The pitch assembly of claim 1, further comprising a resilient member received in the receiving groove, the resilient member having one end abutting the bottom wall of the receiving groove and the other end abutting the check ball.
6. A nose mechanism comprising a nose assembly and a rotating assembly, and further comprising a pitching assembly according to any one of claims 1-5, wherein the nose assembly is connected to the pitching assembly, and the pitching assembly drives the nose assembly to rotate to a preset pitching angle in the vertical direction; the rotating assembly is connected with the pitching assembly and is positioned below the pitching assembly, and the rotating assembly drives the machine head assembly to rotate in the horizontal direction.
7. A household appliance capable of pitching, further comprising a pitching assembly according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467240.0A CN108443200B (en) | 2018-05-14 | 2018-05-14 | Pitching assembly, machine head mechanism and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467240.0A CN108443200B (en) | 2018-05-14 | 2018-05-14 | Pitching assembly, machine head mechanism and household appliance |
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| Publication Number | Publication Date |
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| CN108443200A CN108443200A (en) | 2018-08-24 |
| CN108443200B true CN108443200B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810467240.0A Active CN108443200B (en) | 2018-05-14 | 2018-05-14 | Pitching assembly, machine head mechanism and household appliance |
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| WO2019218580A1 (en) * | 2018-05-14 | 2019-11-21 | 广东美的环境电器制造有限公司 | Drive mechanism, machine head mechanism and fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011241814A (en) * | 2010-04-22 | 2011-12-01 | Shunichi Shimada | Gyro type electric fan with variable wind direction by top movement by rotation of weight |
| CN203098339U (en) * | 2012-12-21 | 2013-07-31 | 格力电器（中山）小家电制造有限公司 | Fan head assembly adjustment structure of electric fan |
| CN203297125U (en) * | 2013-05-08 | 2013-11-20 | 合一电器(深圳)有限公司 | Pitch angle adjusting structure for electric fan |
| CN204283924U (en) * | 2014-10-22 | 2015-04-22 | 深圳市联创电器实业有限公司 | Significantly manual tune can fan the electric fan at the head elevation angle |
| CN205298010U (en) * | 2015-12-31 | 2016-06-08 | 广东美的环境电器制造有限公司 | A fan that is used for fan aircraft nose of fan and has it |
| CN205956040U (en) * | 2016-07-07 | 2017-02-15 | 合一电器(深圳)有限公司 | Floor fan head every single move structure and floor fan |
| CN208236721U (en) * | 2018-05-14 | 2018-12-14 | 广东美的环境电器制造有限公司 | Tilting component, head section mechanism and household electrical appliance |
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