CN108412796B - Machine head mechanism and household appliance - Google Patents

Abstract

The invention provides a machine head mechanism and a household appliance using the same. The nose mechanism includes a nose assembly and a pitch assembly. The handpiece assembly comprises a first housing having two oppositely disposed side walls that together form an accommodation space; the pitching assembly drives the machine head assembly to rotate around the rotation center line of the pitching assembly, the pitching assembly comprises a second shell, the second shell is provided with a head, the head is partially accommodated in the accommodating space, and the side wall and the head are formed into an arc-shaped structure by taking the rotation center line as the center line. The nose mechanism has better safety.

Description

Machine head mechanism and household appliance

Technical Field

The invention relates to the technical field of household appliances, in particular to a machine head mechanism and a household appliance using the same.

Background

In one exemplary technique, a nose mechanism of a fan includes a nose assembly and a pitching assembly disposed below the nose assembly, the pitching assembly being coupled to the nose assembly and the pitching assembly driving the nose assembly to rotate in a vertical direction. The head assembly and the pitching assembly are both approximately of cuboid structures, so that the head assembly and the pitching assembly are provided with sharp corners. In the process of rotating the machine head assembly in the vertical direction, the sharp corners are easy to scratch hands.

Disclosure of Invention

In view of the above, the present invention provides a head mechanism aimed at improving the safety of the head mechanism against scraping hands.

In order to solve the technical problems, the machine head mechanism provided by the invention comprises:

the machine head assembly comprises a first shell, a second shell and a first connecting piece, wherein the first shell is provided with two opposite side walls which jointly form a containing space; a kind of electronic device with high-pressure air-conditioning system

The pitching assembly drives the machine head assembly to rotate around the rotation center line of the pitching assembly, the pitching assembly comprises a second shell, the second shell is provided with a head, the head is partially accommodated in the accommodating space, and the side wall and the head are both in an arc-shaped structure with the rotation center line as the center line.

Further, through holes are formed in two ends of the head, and the pitching assembly further comprises a rotating shaft accommodated in the head; the machine head assembly further comprises a first bracket, the first bracket is provided with two connecting walls which are oppositely arranged, one end of the rotating shaft penetrates through one through hole to be connected with one connecting wall, and the other end of the rotating shaft penetrates through the other through hole to be connected with the other connecting wall.

Further, the first housing further includes a connecting portion connected to the side wall and a cover body covering the connecting portion, and the side wall, the connecting portion and the cover body together form the accommodating space.

Further, the lower surface of the connecting part is concavely provided with an avoidance groove, the avoidance groove extends along the direction of the rotation center line, and the width range of the avoidance groove is 15-30 mm.

Further, the first bracket further comprises an end wall connected with the connecting wall, a first through hole is formed in the end wall, a second through hole corresponding to the first through hole is formed in the cover body, the machine head assembly further comprises a motor and fan blades, the motor is provided with an output shaft, and the output shaft penetrates through the first through hole and the second through hole to be connected with the fan blades.

Further, the two ends of the bottom wall are provided with accommodating holes, and the inner surface of the cover body is also convexly provided with two connecting columns, and each connecting column is accommodated in a corresponding accommodating hole.

Further, the handpiece mechanism further includes a wire harness that is connected to the motor through the through hole of the second housing, the gap between the second housing and the first housing, and the gap between the second housing and the first bracket.

Further, the handpiece mechanism also comprises a rotating component which is connected to one end of the pitching component far away from the head and drives the pitching component and the handpiece component to rotate along the horizontal direction.

Further, each side wall is provided with a hole; the first shell further comprises two side covers, and each side cover is covered on a corresponding hole; and/or the number of the groups of groups,

One end of each side wall, which is close to the pitching assembly, is provided with a clamping groove; the first shell further comprises two decorative covers, and each decorative cover is clamped in a corresponding clamping groove.

Further, the every single move subassembly is including holding the second support in the second shell, and this second support has first lateral wall, the spacing hole that a plurality of intervals set up has been seted up to first lateral wall, and the terminal surface of this pivot is concave to be equipped with the holding tank, and this holding tank sets up with spacing hole relatively, every single move subassembly still includes spacing ball, and this spacing ball holds in the holding tank, and this aircraft nose subassembly rotates to a presupposed every single move angle along vertical direction under every single move subassembly's drive, and this spacing ball is spacing in the pore wall in a spacing hole.

The invention further provides a household appliance, which comprises a supporting component, the household appliance further comprises the machine head mechanism, and the supporting component supports the machine head mechanism.

The nose mechanism comprises a nose assembly and a pitching assembly, wherein the nose assembly comprises a first shell, the first shell is provided with two opposite side walls, the two opposite side walls jointly form an accommodating space, the pitching assembly comprises a second shell, the second shell is provided with a head, the head is partially accommodated in the accommodating space, the side walls and the head are respectively formed into an arc-shaped structure by taking a rotation center line as a center line, so that sharp corners are not formed on the side walls and the head, and when the pitching assembly drives the nose assembly to rotate around the rotation center line of the pitching assembly, the side walls of the nose assembly and the head of the pitching assembly cannot scratch hands, so that the nose mechanism is good in safety.

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 a nose mechanism according to an embodiment of the present invention.

FIG. 2 is a schematic view of the nose assembly and pitch assembly of the present invention in a disengaged condition.

Fig. 3 is a schematic view of the structure of the pitch assembly of the present invention.

Fig. 4 is an exploded view of the handpiece assembly of the present invention.

FIG. 5 is a cross-sectional view of one embodiment of the handpiece mechanism of the present invention.

Fig. 6 is a schematic view of a part of the structure of the handpiece mechanism shown in fig. 1.

Fig. 7 is a schematic view of a part of the structure of the handpiece mechanism shown in fig. 1.

FIG. 8 is a cross-sectional view of one embodiment of the handpiece mechanism of FIG. 1.

Fig. 9 is a schematic view of a part of the structure of the handpiece mechanism shown in fig. 1.

Fig. 10 is a schematic view of a portion of the structure of a pitch assembly of the present invention.

FIG. 11 is a schematic view of another angle of the pitch assembly shown in FIG. 10.

FIG. 12 is a schematic view of a further angle of the pitch assembly shown in FIG. 10.

Figure 13 is a cross-sectional view of one embodiment of a pitch assembly of the present invention.

Fig. 14 is a schematic structural view of an embodiment of the rotating shaft of the present invention.

FIG. 15 is a schematic side plan view of an embodiment of the shaft of the present invention.

Fig. 16 is a schematic side plan view of an embodiment of a first sleeve of the present invention.

FIG. 17 is a schematic side plan view of an embodiment of a second hub of the present invention.

Figure 18 is a schematic side plan view of an embodiment of a pitch assembly of the present invention.

Figure 19 is a schematic side plan view of another embodiment of a pitch assembly of the present invention. 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. 1-19, the present invention provides a handpiece mechanism 100.

The handpiece mechanism 100 includes:

a head assembly 30, the head assembly 30 comprising a first housing 36, the first housing 36 having two oppositely disposed side walls 361, the oppositely disposed side walls 361 together forming a receiving space 3611; a kind of electronic device with high-pressure air-conditioning system

The pitching assembly 10 drives the head assembly 30 to rotate around a rotation center line B of the pitching assembly 10, the pitching assembly 10 comprises a second housing 12, the second housing 12 has a head 121, the head 121 is partially accommodated in the accommodating space 3611, and the side wall 361 and the head 121 are both formed into an arc-shaped structure with the rotation center line B as a center line.

The nose mechanism 100 according to the present invention includes a nose assembly 30 and a pitch assembly 10, the nose assembly 30 includes a first housing 36, the first housing 36 has two opposite side walls 361, the two opposite side walls 361 together form a receiving space 3611, the pitch assembly 10 includes a second housing 12, the second housing 12 has a head 121, the head 121 is partially received in the receiving space 3611, the side walls 361 and the head 121 are both formed into an arc-shaped structure with a rotation center line B as a center line, so that the side walls 361 and the head 121 have no sharp corners, and when the pitch assembly 10 drives the nose assembly 30 to rotate around the rotation center line B of the pitch assembly 10, the side walls 361 and the head 121 do not scratch hands, so that the nose mechanism 100 is better in safety.

Both ends of the head 121 are provided with through holes 1211, and the pitching assembly 10 further comprises a rotating shaft 13 accommodated in the head 121; the handpiece assembly 30 further includes a first bracket 31, the first bracket 31 has two opposite connection walls 311, one end of the rotation shaft 13 is connected to one of the connection walls 311 through a through hole 1211, and the other end of the rotation shaft 13 is connected to the other connection wall 311 through the other through hole 1211.

One end of the rotating shaft 13 of the present invention passes through a through hole 1211 to be connected with one connecting wall 311, and the other end passes through another through hole 1211 to be connected with the other connecting wall 311, so that when the rotating shaft 13 rotates, the first bracket 31 can drive the handpiece assembly 30 to rotate in the vertical direction.

The first housing 36 further includes a connection portion 362 connected to the side wall 361 and a cover 363 provided on the connection portion 362, and the side wall 361, the connection portion 362 and the cover 363 together form the accommodating space 3611.

It will be appreciated that the connection portion 362 is of a rectangular or square or cylindrical configuration.

The side wall 361, the connecting portion 362 and the cover 363 together form the accommodating space 3611 for accommodating several components of the handpiece assembly 30, such as the motor 33, the first bracket 31, etc.

The lower surface of the connection portion 362 is concavely provided with an avoidance groove 369, the avoidance groove 369 is arranged to extend along the direction parallel to the rotation center line B, and the width range of the avoidance groove 369 is 15-30 mm.

The width of the escape groove 369 is 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, or the like.

The escape slot 369 may be a rectangular parallelepiped structure, and the escape slot 369 extends in a direction parallel to the rotation center line B, that is, a length direction of the escape slot 369 is parallel to the rotation center line B. The width direction of the escape groove 369 is perpendicular to the rotation center line B.

The width of the avoidance groove 369 is set to be 15-30 mm, so that the hand is prevented from being injured by clamping in the process of pitching down the machine head assembly 30.

The first bracket 31 further comprises an end wall 313 connected with the connecting wall 311, the end wall 313 is provided with a first through hole 3131, the cover 363 is provided with a second through hole 3631 corresponding to the first through hole 3131, the handpiece assembly 30 further comprises a motor 33 and a fan blade 35, the motor 33 is provided with an output shaft 331, and the output shaft 331 passes through the first through hole 3131 and the second through hole 3631 to be connected with the fan blade 35.

It will be appreciated that the motor 33 may be provided on the end wall 313.

The output shaft 331 of the present invention passes through the first through hole 3131 and the second through hole 3631 to be connected with the fan blade 35, so that the motor 33 can drive the fan blade 35 to rotate along the rotation center line D through the output shaft 331.

The two ends of the end wall 313 are provided with receiving holes 3133, and the inner surface of the cover 363 is also provided with two connecting posts 3633, and each connecting post 3633 is received in a corresponding receiving hole 3133.

In the present invention, two receiving holes 3133 are formed at two ends of the end wall 313, two connecting posts 3633 are also protruding from the inner surface of the cover 363, and each connecting post 3633 is received in a corresponding receiving hole 3133 to connect the end wall 313 and the cover 363, i.e. connect the first housing 36 and the first bracket 31.

The handpiece mechanism 100 further includes a wire harness 70, and the wire harness 70 is connected to the motor 33 through the through hole 1211 of the second housing 12, the gap between the second housing 12 and the first housing 36, and the gap between the second housing 36 and the first bracket 31.

The wire harness 70 in the technical scheme of the invention is connected with the motor 33 through the through hole 1211 of the second housing 12, the gap between the second housing 12 and the first housing 36 and the gap between the second housing 36 and the first bracket 31, so that when the head assembly 30 rotates along the rotation center line B in the vertical direction under the driving of the pitching assembly 10, the wire harness 70 also rotates along the rotation center line B in a small amplitude, and the wire harness 70 is prevented from rotating greatly to influence the service life of the wire harness 70.

The handpiece mechanism 100 also includes a rotational assembly 50, which rotational assembly 50 is coupled to an end of the pitching assembly 10 remote from the head 121 and drives the pitching assembly 10 and the handpiece assembly 30 to rotate in a horizontal direction.

The rotation assembly 50 of the present invention is connected to the end of the pitching assembly 10 away from the head 121, and drives the pitching assembly 10 and the head assembly 30 to rotate in a horizontal direction, so that the head assembly 30 can horizontally rotate along the rotation center line C.

It will be appreciated that pitch assembly 10 imparts a pitch motion to handpiece assembly 30 along rotational centerline B. The rotation shaft 13 also rotates along the rotation center line B. The rotation assembly 50 drives the head assembly 30 and the pitch assembly 10 to horizontally rotate along the rotation center line C, that is, the rotation center line C of the rotation assembly 50.

In one embodiment of the present invention, the pitch angle ranges are: -30-90, -20-100, -10-90, -10-110, -10-140, -20-130, -30-120, -30-110, -10-130, -10-120, -20-110, -20-120, -30-100, etc.

It will be appreciated that when the pitch angle is set to-30 °, the nose assembly 30 rotates 30 ° downward from the initial position in the vertical direction; when the pitch angle is set to 90 °, the head assembly 30 is rotated upward from the initial position to 90 ° in the vertical direction.

Optionally, the pitch angle is: -30 °, -25 °, -20 °, -15 °, -10 °, -5 °, -3 °, 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, 90 °, 95 °, 100 °, 110 °, 115 °, 120 °, or 130 ° and so on. It will be appreciated that the nose assembly 30 may be manually adjusted to a desired pitch angle as desired.

When the head assembly 30 is tilted up to 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, when the head assembly 30 is blown upward ". 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. When nose assembly 30 is tilted up 90 along rotation center line B.

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.

Each side wall 361 is provided with a hole 3613; the first housing 36 further includes two side covers 365, and each side cover 365 covers a corresponding hole 3613.

The side wall 361 of the present invention is provided with holes 3613 to facilitate the installation of the head 121. The hole 3613 is covered by the side cover 365 to prevent dust or moisture from entering the inside of the handpiece mechanism 100 from the hole 3613.

A clamping groove 3615 is formed in one end of each side wall 361, which is close to the pitching assembly 10; the first housing 36 further includes two decorative covers 367, and each decorative cover 367 is clamped to a corresponding clamping slot 3615.

In the technical scheme of the invention, a clamping groove 3615 is formed in one end of each side wall 361, which is close to the pitching assembly 10, so that a gap between the two side walls 361 is increased, and the head 121 is conveniently placed into the accommodating space 3611. And after the head 121 is mounted in the accommodating space 3611, the decorative cover 367 can be clamped in the clamping groove 3615, so as to increase the aesthetic property of the handpiece mechanism 100.

The pitch assembly 10 includes a second bracket 11 accommodated in the second housing 12, the second bracket 11 has a first side wall 111 and a second side wall 112 which are oppositely arranged, the first side wall 111 is provided with a plurality of spacing holes 1112 which are arranged at intervals, a receiving groove 1321 is concavely arranged at one end face of the rotating shaft 11, the receiving groove 1321 is oppositely arranged with the spacing holes 1112, the pitch assembly 10 further includes a spacing ball 15, the spacing ball 15 is accommodated in the receiving groove 1321, and the spacing ball 15 is spacing at the wall of a spacing hole 1112 when the head assembly 30 rotates to a preset pitch angle along the vertical direction under the driving of the pitch assembly 10.

The pitch assembly 10 further comprises a first bushing 131 and a second bushing 133.

The first bushing 131 and the first sidewall 111 may be coupled by a positioning member. The positioning member may be a screw or the like.

The second sleeve 133 and the second sidewall 112 may be connected by another positioning member. The positioning member may be a screw or the like.

In an embodiment of the present invention, one end of the rotating shaft 13 is connected to the connecting wall 311 of the head assembly 30, and the other end of the rotating shaft is rotatably connected to the other connecting wall 311 after passing through the first side wall 111, the first shaft sleeve 131, the second side wall 112 and the second shaft sleeve 133, and the connecting wall 311 is rotated under the driving of the rotating shaft 13, so that the head assembly 30 can be rotated under the driving of the rotating shaft 13 of the pitching assembly 10.

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.

Moreover, one end of the rotating shaft 13 rotatably passes through the first side wall 111 and is connected with one of the connecting walls 311, and the other end of the rotating shaft 13 rotatably passes through the second side wall 112 and is connected with the other connecting wall 311, so that the second bracket 11 of the pitching assembly 10 and the rotating shaft 13 are both clamped between the two connecting walls 311 of the nose assembly 30, and the nose assembly 30 is compact in structure.

In an embodiment of the present invention, the first side wall 111 has a first end 1111 and a second end 1113 connected to the first end 1111, the first end 1111 is provided with the limiting hole 1112, and the second end 1113 is bent relative to the first end 1111 to form a slope 1114.

An end surface of the head 16 is concavely provided with a receiving groove 1321.

In an embodiment of the present invention, a portion of the rotating shaft 13 located outside the second end 1113 is protruded with a protrusion 132, and a surface of the protrusion 132 facing the second end 1113 is provided with the receiving groove 1321.

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.

It will be appreciated that 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.

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 degrees so as to facilitate the safety of the limit ball 15 rolling along the inclined surface 1114 and being accommodated in the accommodation 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.

The bracket 11 of the pitching assembly 10 is provided with a plurality of spacing holes 1112 which are arranged at intervals, the rotating shaft 13 can rotatably pass through the bracket 11, one end face of the rotating shaft 13 is concavely provided with a containing groove 1321, and the spacing ball 15 is contained in the containing groove 1321, so that when the nose assembly 30 is driven by the pitching assembly 10 to rotate to a preset pitching angle in the vertical direction, the spacing ball 15 is spacing on the hole wall of the corresponding spacing hole 1112, so that the nose assembly 30 can keep stable at the preset pitching angle.

Further, the second end 1113 of the first side wall 111 is bent toward the second side wall 112 to form the inclined surface 1114, so that a 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 receiving slot 1321, the limit ball 15 can enter under the guidance of the inclined surface 1114 and roll along the inclined surface 1114 to be received in the receiving slot 1321, so that the nose assembly 30 of the present invention has the advantage of simple installation.

The pitch assembly 10 further includes an elastic member 17 accommodated in the accommodating groove 1321, wherein the elastic member 17 enters and is accommodated in the accommodating groove 1321 under the guidance of the inclined surface 1114, one end of the elastic member 17 abuts against the bottom wall of the accommodating groove 1321, and the other end abuts against the limit ball 15.

The elastic member 17 may be a spring.

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 upward or downward in the vertical direction, the limiting ball 15 moves from one limiting hole 1112 to the other limiting hole 1112, and in 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 limiting ball 15 moves to the other limiting hole 1112, the elastic member 17 applies an elastic force to the limiting ball 15 to stop the limiting ball 15 against the wall of the limiting hole 1112, so that the nose assembly 30 can be kept at a pitching angle without sliding downward.

The limiting holes 1112 are distributed on a circumference with an intersection point of the rotation central axis of the rotation shaft 13 and the plane of the first side wall 111 as a center and 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 spacing between adjacent edges of each adjacent one of the limiting apertures 1112 is 1.5-4 mm.

According to the technical scheme of the invention, the distance between the adjacent edges of each two adjacent limiting holes 1112 is 1.5-4 mm, so that the limiting ball 15 can easily rotate from one limiting hole 1112 to the next limiting hole 1112, and the head assembly 30 using the pitching assembly 10 has the advantage of smooth rotation. Meanwhile, by adjusting the interval between the edges of each two adjacent limiting holes 1112, the angle a of rotation of the nose assembly 30 in the vertical direction after the limiting ball 15 moves from one of the limiting holes 1112 to the other adjacent limiting hole 1112 can be adjusted.

The number of the limit holes 1112 is 9 to 16.

Optionally, the number of the limiting holes 1112 is 9, 10, 11, 12, 13, 14, 15, 16, or the like.

The number of the limiting holes 1112 in the technical scheme of the invention is 9-16, and the pitching angle range of the head assembly 30 applying the pitching assembly 10 is limited by arranging the number of the limiting holes 1112.

The first side wall 111 is further provided with a plurality of communicating grooves 19, and each two adjacent limiting holes 1112 are communicated by a communicating groove 19.

The second bracket 11 of the invention is also provided with a plurality of communicating grooves 19, and each two adjacent limiting holes 1112 are communicated by one communicating groove 19, so that the limiting ball 15 can be limited on the wall of the limiting hole 1112 through the movement of the communicating groove 19 in the rotating process, the friction between the limiting ball 15 and the second bracket 11 is reduced, and the limiting ball 15 can normally move.

After the limiting ball 15 moves from one limiting hole 1112 to the other adjacent limiting hole 1112, the angle a of rotation of the nose assembly 30 along the vertical direction is in the range of 5 ° to 20 °.

The angle a may be 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 the edges of the adjacent limiting holes 1112 can be set according to actual needs to adjust the rotation angle of the nose assembly 30 after the limiting ball 15 moves from one of the limiting holes 1112 to the other adjacent limiting hole 1112.

The diameter of the limiting ball 15 is in the range of 4-6 mm.

It will be appreciated that the diameter of the stop ball 15 may be greater than the size of the stop aperture 1112.

According to the technical scheme, the diameter of the limiting ball 15 is in the range of 4-6 mm, and the diameter of the limiting ball 15 can be larger than the size of the limiting hole 1112, so that the limiting ball 15 can be limited on the wall of the limiting hole 1112.

The limiting hole 1112 has an elliptical structure, and the width of the middle part of the elliptical structure along the rotation direction of the rotating shaft 13 ranges from 2.5 mm to 3.3mm. That is, the width of the elliptical structure in the short axis direction is 2.5 to 3.3mm.

The width of the middle part of the oval structure along the rotation direction of the rotating shaft 13 is smaller than the diameter of the limiting ball 15, so that the limiting ball 15 can be limited on the wall of the limiting hole 1112.

It is appreciated that the limiting aperture 1112 may be circular, square, rectangular, or irregularly shaped, etc.

Also, the stopper ball 15 moves in the short axis direction of the elliptical structure, so that the stopper ball 15 can be easily stopped at the next stopper hole 1112 through the stopper hole 1112.

The second bracket 11 further includes a bottom wall 113 connected to the first side wall 111 and the second side wall 112, and the rotating assembly 50 includes a motor bracket 51 for mounting the motor 53 and a connection member 52 provided on the motor bracket 51, and the motor bracket 51 is connected to the bottom wall 113 of the second bracket 11 through the connection member 52.

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.

A limiting post 1315 is disposed on the first side wall 111; the first stop strip 1311 and the second stop strip 1313 are arranged at intervals at one end of the rotating shaft 13, the included angle between the first stop strip 1311 and the second stop strip 1313 ranges from 80 degrees to 150 degrees, and when the pitching assembly 10 drives the nose assembly 30 to rotate along the vertical direction, the first stop strip 1311 or the second stop strip 1313 is stopped at the limiting column 1315.

The shell 11 of the invention is provided with a limit post 1315, the rotating shaft 13 can rotatably pass through the shell 11, a first baffle strip 1311 and a second baffle strip 1313 which are arranged at intervals are convexly arranged at the first end 131 of the rotating shaft 13, the pitching assembly 10 drives the nose assembly 30 to vertically rotate, and the first baffle strip 1311 or the second baffle strip 1313 is stopped at the limit post 1315, so that the pitching angle of the pitching assembly 10 can be limited by the first baffle strip 1311 and the second baffle strip 1313. The angle between the first barrier strip 1311 and the second barrier strip 1313 is in the range of 80-150 degrees, so that the nose assembly 30 using the pitching assembly 10 has a larger pitching angle.

The rotating shaft 13 includes a head 16 and a rotating rod 14 connected to the head 16, an area of an area formed by surrounding the outer edge of the longitudinal section of the head 16 is larger than an area of an area formed by surrounding the outer edge of the longitudinal section of the rotating rod 14, the rotating rod 14 is radially provided with at least one first boss 141 and at least one second boss 142 opposite to the first boss 141, the at least one second boss 142 is arranged at one end of the rotating rod 14 away from the head 16, the at least one first boss 141, the rotating rod 14 and the head 16 together form a first accommodating portion 143, and the at least one first boss 141, the at least one second boss 142 and the rotating rod 14 together form a second accommodating portion 145;

the first shaft sleeve 131 is provided with a first through hole 1311 matched with the rotary rod 14 and a first through groove 1313 matched with the first boss 141, and the first through groove 1313 is communicated with the first through hole 1311; a kind of electronic device with high-pressure air-conditioning system

The second sleeve 133 is provided with a second through hole 1331 matched with the rotating rod 14 and a second through groove 1333 matched with the second boss 142, the second through groove 1333 is communicated with the second through hole 1331, the first sleeve 131 is sleeved on the rotating rod 14 and is accommodated in the first accommodating portion 143, the second sleeve 133 is sleeved on the rotating rod 14 and is accommodated in the second accommodating portion 145, when the rotating shaft 13 is in a locking state with the first sleeve and the second sleeve, the first boss 141 is staggered with the first through groove 1313, and the second boss 142 is staggered with the second through groove 1333.

The longitudinal section of the head 16 may be a plane obtained by cutting the head 16 in the vertical direction. The longitudinal section of the rotating lever 14 may be a surface obtained by cutting the rotating lever 14 in the vertical direction. The vertical direction is perpendicular to the axial direction of the rotating shaft 13.

The rotary rod 14 of the present invention is provided with at least one first boss 141 and at least one second boss 142 opposite to the first boss 141 along the axial direction, the second boss 142 is disposed at one end of the rotary rod 14 far away from the head 16, the first boss 141, the rotary rod 14 and the head 16 together form a first accommodating portion 143, and the first boss 141, the second boss 142 and the rotary rod 14 together form a second accommodating portion 145. The first shaft sleeve 1331 is provided with a first through hole 1311 matched with the rotary rod 14 and a first through groove 1313 matched with the first boss 131; the second sleeve 133 is provided with a second through hole 1331 matched with the rotary rod 14 and a second through groove 1333 matched with the second boss 142. One end of the rotating rod 14 is accommodated in the first through hole 1311, the opposite end is accommodated in the second through hole 1331, and the first sleeve 133 is accommodated in the first accommodating portion 143, and the second sleeve 133 is accommodated in the second accommodating portion 145, so that the first sleeve 131 and the second sleeve 133 are connected to the rotating shaft 13. When the shaft 13 and the shaft sleeve are in a locked state, the first boss 141 is staggered with the first through slot 1313, and the second boss 142 is staggered with the second through slot 1333, i.e. the bosses abut against the first shaft sleeve 131 and the second shaft sleeve 133, so that the first shaft sleeve 131 and the second shaft sleeve 133 are fastened to the shaft 13 and are difficult to separate from the shaft 13. Compared with the prior art that the rotating shaft and the shaft sleeve are fixed by bolts and nuts, after the shaft sleeve is arranged on the rotating shaft 13, the shaft sleeve and the rotating shaft 13 can be locked by rotating the rotating shaft 13 to enable the boss to abut against the first shaft sleeve 131 and the second shaft sleeve 133, and the pitching assembly 10 is simple, convenient and quick to install.

Further, since the first shaft sleeve 131 is directly accommodated in the first accommodating portion 143, and the second shaft sleeve 133 is accommodated in the second accommodating portion 145, the rotating shaft 13 and the shaft sleeve can be installed without fixing the rotating shaft and the shaft sleeve by bolts and nuts, so that the force applied to each fan to drive the machine head assembly 30 to rotate along the vertical direction is the same.

In an embodiment of the present invention, the rotating rod 14 is radially provided with at least two first bosses 141 and at least two second bosses 142 that are spaced apart, the first shaft sleeve 131 is provided with at least two first through slots 1313 that are spaced apart and matched with the first bosses, and the second shaft sleeve 133 is provided with at least two second through slots 1333 that are spaced apart and matched with the second bosses. The at least two first bosses 141 have different widths, and the at least two second bosses 142 have different widths.

It will be appreciated that the first boss 141 and the second boss 142 have matching widths.

In an embodiment of the present invention, the rotating rod 14 is radially provided with at least three first bosses 141 and at least three second bosses 142, the first shaft sleeve 131 is provided with at least three first through grooves 1313 that are matched with the first bosses, and the second shaft sleeve 133 is provided with at least three second through grooves 1333 that are matched with the second bosses. The at least three spaced first bosses 141 have different widths, and the at least three spaced second bosses 142 have different widths.

It will be appreciated that the first boss 141 and the second boss 142 have matching widths.

The number and width of the first bosses 141 and the second bosses 142 may be set according to practical requirements, and optionally, the first bosses 141 and the second bosses 142 have matched widths, the first bosses 141 have different widths, and the second bosses 142 have different widths, so that the first shaft sleeve 131 and the second shaft sleeve 133 are difficult to separate from the rotating shaft 13.

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, wherein the torsion spring 135 comprises a first end 1351 and a second end 1353 which are oppositely arranged, the second side wall 112 is provided with a stop member 1123, the first end 1351 is limited on the limiting member 137, and the second end 1353 is stopped on the stop member 1123, so that the torsion spring 135 is in a normal compression state.

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 first openings 1121 arranged at intervals, the second sleeve 133 is provided with a second opening 1335 corresponding to the first opening 1121, and the stop member 1123 passes through the second opening 1335 and the first opening 1121 to stop the second end 1353 of the torsion spring 135.

The portion of the stop 1123 passing through the second sidewall 112 and the second bushing 133 forms a stop end 1125, the stop end 1125 stopping the second end 1353 of the torsion spring 135.

The second side wall 112 of the present invention is provided with a plurality of first openings 1121 spaced apart, the second sleeve 133 is provided with a second opening 1335 corresponding to the first opening 1121, and the stopper 1123 passes through one of the second openings 1335 and the first opening 1121 to stop the second end 1353 of the torsion spring 135.

It will be appreciated that by locating the stop 1123 in different first and second openings 1121, 1335, the stop 1123 differs in terms of the stopping force against the second end 1353 of the torsion spring 135. Accordingly, the position, number and spacing of the first and second openings 1121, 1335 may be set as desired, and the stop force of the stop 1123 against the second end 1353 of the torsion spring 135 may be adjusted by locating the stop 1123 in the adapted first and second openings 1121, 1335.

The motor 53 has an output shaft 531. The motor bracket 51 is provided with a 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.

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 head assembly 30 and the pitch assembly 10 to rotate in a horizontal direction through the output shaft 531, the crank 533, the link 535, the connecting post 536, the motor bracket 51, the support 52, and the bottom wall 113.

In an embodiment of the present invention, the motor 53 is disposed at one end of the motor support 51, and a through hole (not labeled) is disposed at the other end of the motor support 51, and the motor support 51 is rotatably sleeved on the positioning member 537 through the through hole.

Link 535 is rotatably connected to connecting post 536.

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 connected with the crank 53 and the motor bracket 51 to rotate, so as to drive the nose assembly 30 and the pitching assembly 10 to rotate in the horizontal direction.

The motor bracket 51 is provided with a third through hole 511, and the third through hole 511 is communicated with the connecting drum 513.

The connecting member 52 is provided with a fourth through hole 521, and the wire harness 70 sequentially passes through the connecting drum 513, the third through hole 511, the fourth through hole 521, the through hole 1211 of the second housing 12, the gap between the second housing 12 and the first housing 36, and the gap between the second housing 36 and the first bracket 31 to be connected with the motor 33, so as to supply electric energy to 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 fan 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 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.

In the process of assembling the machine head assembly 30, the appearance parts of the fan are not required to be assembled, so that the appearance parts are not required to be protected in the process of assembling the machine head assembly 30, and the production qualification rate is greatly improved. The appearance piece can be a shell of the fan, a button and other parts.

The invention also provides a household appliance. The household appliance has a 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 comprises a support assembly and the handpiece mechanism 100, wherein the support assembly supports the handpiece mechanism 100.

The home appliance may further include a stand 90, and the stand 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 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.

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 (8)

1. A handpiece mechanism, the handpiece mechanism comprising:

the machine head assembly comprises a first shell, a second shell and a first connecting piece, wherein the first shell is provided with two opposite side walls which jointly form a containing space; a kind of electronic device with high-pressure air-conditioning system

The pitching assembly drives the machine head assembly to rotate around the rotation center line of the pitching assembly, the pitching assembly comprises a second shell, the second shell is provided with a head, the head is partially accommodated in the accommodating space, and the side wall and the head are both in an arc-shaped structure with the rotation center line as the center line;

through holes are formed in two ends of the head, and the pitching assembly further comprises a rotating shaft accommodated in the head; the machine head assembly further comprises a first bracket, wherein the first bracket is provided with two connecting walls which are oppositely arranged, one end of the rotating shaft penetrates through one through hole to be connected with one connecting wall, and the other end of the rotating shaft penetrates through the other through hole to be connected with the other connecting wall;

The first shell further comprises a connecting part connected with the side wall and a cover body covered on the connecting part, and the side wall, the connecting part and the cover body jointly form the accommodating space;

the first bracket further comprises an end wall connected with the connecting wall, a first through hole is formed in the end wall, a second through hole corresponding to the first through hole is formed in the cover body, the machine head assembly further comprises a motor and fan blades, the motor is provided with an output shaft, and the output shaft penetrates through the first through hole and the second through hole to be connected with the fan blades;

the motor is arranged on the end wall;

when the rotating shaft rotates, the first bracket drives the machine head assembly to rotate along the vertical direction.

2. The machine head mechanism according to claim 1, wherein the lower surface of the connecting portion is concavely provided with an avoidance groove, the avoidance groove is arranged in an extending manner along the direction of the rotation center line, and the width range of the avoidance groove is 15-30 mm.

3. The head mechanism of claim 1, wherein the end walls are provided with receiving holes at both ends, and the inner surface of the cover body is provided with two connecting posts in a protruding manner, and each connecting post is received in a corresponding receiving hole.

4. The handpiece mechanism of claim 1, further comprising a wiring harness connected to the motor through the through hole of the second housing, the gap between the second housing and the first housing, and the gap between the second housing and the first bracket.

5. The handpiece mechanism as in any one of claims 1-4, further comprising a rotating assembly coupled to an end of the pitching assembly remote from the head and driving the pitching assembly and handpiece assembly to rotate in a horizontal direction.

6. The handpiece mechanism as in any one of claims 1-4, wherein each sidewall is perforated; the first shell further comprises two side covers, and each side cover is covered on a corresponding hole; and/or the number of the groups of groups,

one end of each side wall, which is close to the pitching assembly, is provided with a clamping groove; the first shell further comprises two decorative covers, and each decorative cover is clamped in a corresponding clamping groove.

7. The head mechanism of any one of claims 1-4, wherein the pitch assembly comprises a second bracket accommodated in the second housing, the second bracket has a first side wall, a plurality of spacing holes are formed in the first side wall at intervals, a receiving groove is concavely formed in one end face of the rotating shaft, the receiving groove is opposite to the spacing holes, the pitch assembly further comprises a spacing ball accommodated in the receiving groove, and the spacing ball is limited on a wall of a spacing hole when the head assembly rotates to a preset pitch angle in a vertical direction under the driving of the pitch assembly.

8. A household appliance comprising a support assembly, wherein the household appliance further comprises a head mechanism as claimed in any one of claims 1-7, the support assembly supporting the head mechanism.