CN107314528B - Household appliance - Google Patents

Abstract

The invention is suitable for the field of household appliances, and discloses a household appliance, which comprises a head component, a base component, a bracket component, wherein one end of the bracket component is fixedly connected with the base component, the other end of the bracket component is movably connected with the head component, two opposite sides of the head component are respectively provided with an arc-shaped positioning rack, at least two elastic positioning structures are arranged on the bracket component, one part of the elastic positioning structures elastically support against one arc-shaped positioning rack along a first direction, the other part of the elastic positioning structures elastically support against the other arc-shaped positioning rack along a second direction, and the first direction and the second direction are opposite. According to the invention, the arc-shaped positioning racks are respectively arranged on the two opposite sides of the head assembly, and the support assembly is provided with at least two elastic positioning structures which respectively elastically support against the two arc-shaped positioning racks in a reverse direction, so that the head assembly can be respectively guided and limited by the elastic positioning structures from the left side and the right side, and the problem of left-right swing of the head assembly in the pitching process is prevented.

Description

Household appliance

Technical Field

The invention relates to the field of household appliances, in particular to a household appliance.

Background

In the prior art, a household appliance with a pitching function mainly adopts the following two modes:

The automatic pitching is realized by adopting a synchronous motor and a four-bar mechanism, the household appliance adopting the pitching mode has higher cost and complex assembly, and the pitching stop phenomenon can occur in the using process.

The other is manual regulation every single move, and its concrete implementation is to design the support that is used for supporting head subassembly as U-shaped support to be connected with the both sides portion of head subassembly through hinge structure respectively with the both ends of U-shaped support, so, make the head subassembly can be around hinge structure's hinge axle center rotary motion, thereby realized domestic appliance's upper and lower every single move function. In order to realize positioning the head assembly after pitching adjustment, the prior art generally sets up arc positioning racks at the bottom of the head assembly, and vertically sets up positioning beads and springs on the U-shaped support for elastic abutting positioning with the arc positioning racks. The household appliance adopts the mode to realize the up-down pitching function, and in the specific application, the following defects exist:

1) The positioning bead and the spring elastically abut against the arc-shaped positioning rack from the vertical direction, and the positioning bead penetrates through the hinge axis of the hinge structure, so that the positioning bead, the spring and the arc-shaped positioning rack are arranged to only lock and position the head assembly after pitching, but not play a role in guiding and limiting the pitching movement of the head assembly, the head assembly can easily swing left and right in the pitching process, and if the problem is to be solved, other auxiliary structures are required to be arranged on the U-shaped support to guide and limit the head assembly left and right, and the structure of the household appliance is complex, so that the cost reduction of the household appliance is not facilitated.

2) The pitching mechanism composed of the U-shaped bracket and the hinge structure is complex in structure, complex in production and manufacturing process and installation process, high in production cost and low in production efficiency.

3) The connection part of the bracket and the head component is exposed at the two side parts of the head component, so that the visual effect of the appearance of the product is seriously affected.

4) When the head component moves in a pitching mode, the distance between the gravity center of the head component and the axis of the hinge can be changed, and the gravity center of the head component is poor in stability in the pitching process, so that the phenomenon of low head pitching failure is easy to occur for the relatively heavy head component.

5) The pitching mechanisms of the existing household appliances are similar, so that the products are seriously homogenized, and the products are not easy to popularize and sell due to the fact that different selling points are not available.

Disclosure of Invention

The invention aims to provide a household appliance which solves the technical problem that the household appliance with a manual pitching adjusting function in the prior art swings left and right in the pitching process.

In order to achieve the above purpose, the invention provides the following scheme: the household appliance comprises a head assembly, a base assembly and a bracket assembly, wherein one end of the bracket assembly is fixedly connected with the base assembly, the other end of the bracket assembly is movably connected with the head assembly, the household appliance is characterized in that arc-shaped positioning racks are respectively arranged on two opposite sides of the head assembly, at least two elastic positioning structures are arranged on the bracket assembly, one part of the elastic positioning structures elastically support against one arc-shaped positioning rack along a first direction, the other part of the elastic positioning structures elastically support against the other arc-shaped positioning rack along a second direction, and the first direction and the second direction are reversely arranged.

According to the household appliance provided by the invention, one end of the bracket component is fixedly connected with the base component, and the other end of the bracket component is movably connected with the head component, so that the head component can perform pitching motion relative to the bracket component under the action of external force, and the manual pitching function of the household appliance is realized. Meanwhile, the two opposite sides of the head assembly are respectively provided with the arc-shaped positioning racks, and the bracket assembly is provided with at least two elastic positioning structures which respectively and reversely elastically support against the two arc-shaped positioning racks, so that in the pitching motion process of the head assembly, each elastic positioning structure can respectively guide and limit the head assembly from the left side and the right side, and the problem that the head assembly swings left and right in the pitching process is effectively prevented.

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 illustrating an assembly of an arc-shaped rail and a bracket assembly according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;

FIG. 3 is an exploded view of an arcuate track and bracket assembly according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram of a fan according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a connection state between a fan head assembly and a bracket when a fan according to an embodiment of the present invention is exhausted in a horizontal direction;

fig. 6 is a schematic diagram illustrating a connection state of a fan head assembly and a bracket when a fan provided in the first embodiment of the present invention is inclined upwards to discharge air;

fig. 7 is a schematic diagram illustrating a connection state of a fan head assembly and a bracket when a fan according to an embodiment of the present invention is vertically and upwardly discharged;

FIG. 8 is a schematic diagram illustrating an assembly of an arc track and a bracket assembly according to a second embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of B-B of FIG. 8;

FIG. 10 is a schematic side plan view of a slider according to a second embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of C-C of FIG. 10;

FIG. 12 is a schematic view of an assembly of an arcuate track and a bracket assembly according to a third embodiment of the present invention;

FIG. 13 is a schematic cross-sectional view of D-D of FIG. 12;

FIG. 14 is a schematic view illustrating an assembly of an arcuate track and a bracket assembly according to a fourth embodiment of the present invention;

FIG. 15 is a schematic cross-sectional view of E-E of FIG. 14;

FIG. 16 is a schematic view of an assembly of an arcuate track and a bracket assembly according to a fifth embodiment of the present invention;

FIG. 17 is a schematic cross-sectional view of F-F in FIG. 16;

FIG. 18 is a schematic front view of a bracket assembly according to a fifth embodiment of the present invention;

FIG. 19 is a schematic cross-sectional view of G-G of FIG. 18;

FIG. 20 is a schematic view showing an assembly of an arc-shaped rail and a bracket assembly according to a sixth embodiment of the present invention;

FIG. 21 is a schematic cross-sectional view of H-H of FIG. 20;

fig. 22 is a schematic front view of a third slider according to a sixth embodiment of the present invention.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				1	Head assembly	11	Air outlet base
12	Air inlet base	2	Base assembly
				3	Bracket assembly	31	Support frame
311	Panel board	3111	Inner wall surface
				3112	Outer wall surface	3113	Clamping groove
32	Sliding member	321	First sliding piece
				3211	First mounting shaft	3212	First roller
3213	First slider	322	Second sliding piece
				3221	Second mounting shaft	3222	Second roller
3223	Second slider	323	Third sliding piece
				3231	Third roller	3232	Connecting pin
3233	Arc block	3201	A first opening
				3202	A second opening	3203	A third opening
3204	Mounting hole	4	Arc-shaped positioning rack
				5	Elastic positioning structure	51	Spring
52	Positioning rod	53	Spring plate
				54	Protrusions	6	Arc track
61	First arc chute	611	Mounting opening
				62	Avoidance port	63	Second arc chute
631	Middle groove part	632	Side groove part
				601	Central shaft of arc track	3200	Curved surface

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. 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.

Embodiment one:

as shown in fig. 1-7, a household appliance provided in a first embodiment of the present invention includes a head assembly 1, a base assembly 2, and a bracket assembly 3 having one end fixedly connected to the base assembly 2 and the other end movably connected to the head assembly 1, wherein two opposite sides of the head assembly 1 are respectively provided with an arc positioning rack 4, the bracket assembly 3 is provided with at least two elastic positioning structures 5, wherein a part of the elastic positioning structures 5 elastically support against one arc positioning rack 4 along a first direction, and another part of the elastic positioning structures 5 elastically support against the other arc positioning rack 4 along a second direction, and the first direction and the second direction are opposite.

Specifically, the head assembly 1 is mainly used for realizing the use power output function of the household appliance; the base component 2 is mainly used for realizing the placement of household appliances in application occasions; the bracket assembly 3 is mainly used for connecting the head assembly 1 and the base assembly 2. The household appliance provided by the embodiment, through the one end fixed connection base subassembly 2 with the support subassembly 3, the other end swing joint head subassembly 1 to make the head subassembly 1 can overcome the elastic positioning and carry out every single move motion relative to support subassembly 3 under the effect of structure elasticity force at external force, and then realized household appliance's manual every single move function. Meanwhile, the two opposite sides of the head assembly 1 are respectively provided with the arc-shaped positioning racks 4, and the bracket assembly 3 is provided with at least two elastic positioning structures 5 which respectively and reversely elastically support against the two arc-shaped positioning racks 4, so that in the pitching motion process of the head assembly 1, each elastic positioning structure 5 can respectively guide and limit the head assembly 1 from the left side and the right side, and the problem that the head assembly 1 swings left and right in the pitching process is effectively prevented.

Preferably, the number of the elastic positioning structures 5 is an even number, wherein half of the number of the elastic positioning structures 5 are propped against one arc-shaped positioning rack 4 along a first direction, and the other half of the number of the elastic positioning structures 5 are propped against the other arc-shaped positioning rack 4 along a second direction opposite to the first direction. The number of the two arc-shaped positioning racks 4 which are propped against each other is the same, so that elastic forces received by two sides of the head assembly 1 are mutually counteracted, the head assembly 1 is in a balanced state in the width direction of the bracket assembly 3, and the pitching motion and the positioning stability and reliability of the head assembly 1 after pitching are effectively ensured.

Preferably, the back of the head assembly 1 facing the support 31 is provided with an arc-shaped track 6, the support assembly 3 comprises a support 31 fixedly connected with the base assembly 2 and a sliding member 32 in sliding fit with the arc-shaped track 6, the sliding member 32 is arranged at the end part of the support 31 facing the head assembly 1, two arc-shaped positioning racks 4 are respectively arranged on two parallel wall surfaces of the arc-shaped track 6, and each elastic positioning structure 5 is arranged on the sliding member 32. Here, through setting up arc track 6 at the back of head subassembly 1, set up slidable mounting in the slide member 32 in arc track 6 at the tip of support 31 to make arc track 6 and slide member 32 assemble together the back and can carry out relative arc slip under the exogenic action, in this, in the concrete application, through sliding arc track 6 to different positions, can realize controlling head subassembly 1 and be in different every single move states, and then effectively realized the every single move function of head subassembly 1. Because the arc-shaped track 6 and the sliding member 32 are simple in structure and simple in manufacturing process and mounting process, the production cost of the product can be reduced and the production efficiency of the product can be improved. In addition, the matching mode of the arc-shaped track 6 and the sliding member 32 is adopted, the gravity center position of the head assembly 1 is always kept unchanged in the pitching process of the head assembly 1, and the gravity center of the head assembly 1 is stable in the pitching process. Meanwhile, as the connecting part of the bracket component 3 and the head component 1 is positioned at the back of the head component 1, the connecting part of the bracket component 3 and the head component 1 can not be directly exposed in the sight of a user, the visual effect of the appearance of the fan is effectively improved, the problems that the existing fan product is serious in homogeneity and has no differentiated selling point are well solved, and the popularization and the sales of the product are facilitated. The arc-shaped positioning racks 4 are arranged in the arc-shaped tracks 6, and the elastic positioning structures 5 are arranged on the sliding members 32, so that on one hand, the arc-shaped tracks 6 can be limited by the elastic positioning structures 5 from two sides respectively in the sliding process of the arc-shaped tracks 6 under the action of external force, the phenomenon of left and right swinging in the sliding process of the arc-shaped tracks 6 is prevented, after the arc-shaped tracks 6 slide to a required position, the external force is removed, and the elastic positioning structures 5 positioned at two sides of the arc-shaped tracks 6 can press the arc-shaped tracks 6 from two opposite directions; on the other hand, the positioning points of the elastic positioning structure 5 and the arc-shaped positioning rack 4 are far away from the rotation axis (namely the central axis 601 of the arc-shaped track 6) of the head assembly 1, so that a user can pitch the head assembly 1 with very small force under the condition of the same torque, and the operation experience of the user is improved.

Preferably, the arc track 6 is provided with two first arc sliding grooves 61 respectively located at two sides of the arc track 6 along the width direction of the arc track 6, the two first arc sliding grooves 61 are provided with mounting openings 611 which are opened laterally, the mounting openings 611 of the two first arc sliding grooves 61 are reversely arranged, the two arc positioning racks 4 are respectively arranged on the wall surfaces of the two first arc sliding grooves 61 opposite to the two mounting openings 611, the sliding member 32 comprises at least two first sliding parts 321 which are arranged at intervals along the width direction of the arc track 6 and are respectively in sliding fit with the two first arc sliding grooves 61, and each first sliding part 321 is provided with an elastic positioning structure 5. The vertical section of the arc-shaped rail 6 is approximately in an I shape. The first arc chute 61 is mainly configured to slidingly engage with each of the first sliding members 321 located on the left and right sides of the width direction of the bracket 31; the mounting hole 611 is mainly used for ensuring that each first sliding piece 321 positioned on the left side and the right side of the width direction of the bracket 31 can be assembled with the first arc chute 61 on the two sides of the arc track 6. Here, each of the first sliders 321 plays a role in supporting both the left and right sides of the arc-shaped rail 6 in the width direction, so that the support of the head assembly 1 by each of the first sliders 321 can be made smoother.

Preferably, the end of the bracket 31 facing the head assembly 1 is provided with two panels 311 opposite to each other at intervals, the two panels 311 have two inner wall surfaces 3111 opposite to each other at intervals and two outer wall surfaces 3112 opposite to each other at intervals, and the first slider 321 includes a first mounting shaft 3211 provided on the inner wall surface 3111 and a first roller 3212 rotatably mounted on the first mounting shaft 3211. Here, the sliding fit with the arc track 6 is achieved by using the first roller 3212, so that when the head assembly 1 slides relative to the sliding member 32 under the action of external force to achieve the pitching function, the first roller 3212 rolls under the driving of the sliding motion of the arc track 6, thereby being beneficial to reducing the resistance applied to the head assembly 1 in the pitching sliding process, and further enabling the pitching operation of the head assembly 1 to be easier to operate and smoother. In addition, each first roller 3212 is respectively mounted on two opposite inner sides of the bracket 31 along the width direction of the bracket 31, so that under the condition that the width of the arc-shaped track 6 is fixed, the width design of the bracket 31 can be conveniently maximized, thereby being beneficial to ensuring the structural reliability of the bracket 31, and further enabling the bracket assembly 3 to support the head assembly 1 more stably and reliably.

Preferably, the first mounting shafts 3211 on the two inner wall surfaces 3111 are respectively and coaxially arranged two by two, which is beneficial to ensuring that the support points of the bracket assembly 3 on the left side and the right side of the head assembly 1 are positioned at the same height position, and fully ensuring the stability of the bracket assembly 3 on the support of the head assembly 1.

Preferably, the axes of the first rollers 3212 are parallel to each other and located in the same curved surface 3200, and the central axis of the curved surface 3200 coincides with the central axis 601 of the curved track 6, so that the center of gravity of the head assembly 1 is always kept unchanged during the pitching process of the head assembly 1, and the center of gravity of the head assembly 1 is further stable during the pitching process.

Preferably, the elastic positioning structure 5 includes a spring 51 fitted in the first mounting shaft 3211 and a positioning rod 52 having one end connected to the spring 51 and the other end abutting against the arc-shaped positioning rack 4. The positioning rod 52 is mainly used for being in propped fit with the positioning rack; the spring 51 is mainly used for ensuring that the positioning rod 52 can perform telescopic movement relative to the positioning rack, so that the positioning rod 52 can not interfere with the sliding of the arc-shaped track 6 in the pitching process of the head assembly 1. Of course, in specific applications, the elastic positioning structure 5 is not limited to the combination of the spring 51 and the positioning rod 52, for example: the elastic positioning structure 5 may also be configured to include a spring plate extending from the axial position of each first roller 3212 to abut against the arc-shaped positioning rack 4.

Specifically, the arc-shaped positioning rack 4 is provided with a plurality of positioning grooves at intervals along the arc length direction. In a specific application, when the head assembly 1 performs arc sliding relative to the first roller 3212 under the action of external force, the elastic positioning structure 5 elastically deforms under the action of the external force and is retracted from the positioning groove, so that the pitching motion of the head assembly 1 is not affected by the elastic positioning structure 5; and when the head assembly 1 is pitched to a required angle, the external force is removed, and the elastic positioning structure 5 stretches out of the jacking positioning groove under the action of the elastic restoring force of the elastic positioning structure, so that the locking positioning of the head assembly 1 is realized, and the reliability of the pitching angle positioning of the head assembly 1 is fully ensured.

Preferably, the inner wall of the positioning groove is a spherical surface, and the outer surface of the end part of the positioning rod 52, which is close to the arc-shaped positioning rack 4, is a spherical surface matched with the inner wall of the positioning groove. Here, the inner wall of the positioning groove and the outer surface of the end portion of the positioning rod 52, which is matched with the positioning groove, are spherical, so that the matching surfaces of the positioning groove and the positioning rod 52 are smooth and soft, and the positioning rack can easily slide over the positioning rod 52 in the pitching process of the head assembly 1, and the phenomenon that the arc-shaped positioning rack 4 and the positioning rod 52 are scratched by each other is avoided.

As a preferred embodiment of the present embodiment, four first rollers 3212 are provided, four first mounting shafts 3211 are provided on the bracket 31, and the four first rollers 3212 are respectively mounted on the four first mounting shafts 3211; a spring 51 and a positioning rod 52 are arranged at the middle position of each first installation shaft 3211; the first installation shaft 3211 is provided with a blind hole, the spring 51 is accommodated in the blind hole, the spring 51 is provided with a spiral hollow inner hole, one end of the spring 51 is propped against the bottom of the blind hole, and the other end of the spring 51 is propped against the positioning rod 52; the positioning rod 52 comprises a supporting rod body penetrating through the spiral hollow inner hole of the spring 51, a clamping boss protruding at one end of the supporting rod body and clamped outside the spiral hollow inner hole of the spring 51, and a positioning ball protruding at one end of the clamping boss, wherein the positioning ball is in propping fit with the positioning groove. Of course, in a specific application, the number of the first rollers 3212 is not limited thereto, and is preferably an even number greater than two, and is coaxially arranged two by two.

Preferably, the household air conditioner is a fan, the head assembly 1 is a fan head assembly of the fan, and the fan adopts the arrangement, so that the beneficial effects of enabling the structure of the fan to be more compact, enabling the appearance of the fan to be more attractive, increasing product differentiation selling points and enabling the pitching motion of the fan to be more stable can be achieved. Of course, in specific applications, the above-mentioned home air conditioner may also be other products with a function of manually adjusting pitch, such as a warmer or a lighting fixture.

Preferably, the fan may be a desk fan, a floor fan, or a wall fan, the head assembly 1 includes an air outlet base 11, an air inlet base 12 disposed at one side of the air outlet base 11, and a swing mechanism (not shown) for driving the air outlet base 11 to perform a swing motion relative to the air inlet base 12, the swing mechanism includes a swing driving motor assembled on the air inlet base 12 and a swing transmission pair for connecting the swing driving motor and the air outlet base 11 in a transmission manner, and the arc track 6 is disposed at a back of the air inlet base 12 opposite to the air outlet base 11. The rotary swing transmission pair can be a cam link transmission pair. The air outlet base 11 is the air outlet side of the head assembly 1, the air inlet base 12 is the air inlet side of the head assembly 1, and in specific application, when the fan is operated, external air enters the head assembly 1 from the air inlet base 12, and is discharged out of the head assembly 1 from the air outlet base 11. The rotary pendulum driving motor is a power output part of the rotary pendulum mechanism, and the rotary pendulum transmission pair is used for converting the power output by the rotary pendulum driving motor into rotary pendulum motion and transmitting the rotary pendulum motion to the air outlet base 11, so that the aim of driving the air outlet base 11 to generate rotary pendulum motion is fulfilled. The rotary and swinging motion is a spatial three-dimensional motion, specifically a combined motion of rotation and swinging, and the motion track is a three-dimensional continuous circumferential closed track. According to the head assembly 1 provided by the embodiment, under the drive of the rotary swing mechanism, the air outlet base 11 can perform rotary swing motion relative to the air inlet base 12, so that the conventional design thinking that the air outlet base 11 and the air inlet base 12 are relatively fixed in the existing fan is broken, and as the air outlet base 11 performs three-dimensional rotary swing motion relative to the air inlet base 12, the cool and dazzling feeling is quite sufficient when a product runs, the differential selling point of the fan is further increased, and the popularization and the sales of the product are facilitated. In addition, because the air-out base 11 is driven by the rotary swing mechanism to perform three-dimensional rotary swing motion combining rotation and swing, namely, the air-out base 11 can be driven by the same power mechanism to realize the combination of two swinging modes, the air-out base 11 further realizes the function of spatial three-dimensional swinging, the air supply area is effectively enlarged, the rotary output of the wind direction is realized, and the output wind sense is softer and more natural. Further, since the swing motion trajectory of the air outlet base 11 is a three-dimensional continuous circumferential closed trajectory, the problem of stopping at the reversing position similar to the linear reciprocating motion of the fan in a single plane does not occur, so that the motion of the product is more reliable.

Embodiment two:

the difference between the household electrical appliance provided in this embodiment and the first embodiment lies mainly in that the arrangement mode of the first sliding member 321 and the elastic positioning structure 5 is different, specifically in: as shown in fig. 1 to 7, in the first embodiment, the first sliding member 321 adopts a roller setting mode, and the elastic positioning structure 5 adopts a combination setting mode of the spring 51 and the positioning rod 52; as shown in fig. 8-11, in this embodiment, the first sliding member 321 adopts a sliding block arrangement mode, and the elastic positioning structure 5 adopts a combination arrangement mode of the elastic sheet 53 and the protrusion 54. Specifically, in the present embodiment, two panels 311 are disposed at opposite sides of the end of the bracket 31 facing the head assembly 1, the two panels 311 also have two inner wall surfaces 3111 disposed opposite sides and two outer wall surfaces 3112 disposed opposite sides, and the first slider 321 is a first slider 3213 disposed on the inner wall surface 3111.

Preferably, the first slider 3213 is provided with a first opening 3201 extending along the arc length direction of the arc track 6, and the elastic positioning structure 5 includes a spring plate 53 protruding in the first opening 3201 and a protrusion 54 protruding at one end of the spring plate 53 and in abutting fit with the arc positioning rack 4. The bulge 54 is mainly used for being in propping fit with the arc-shaped positioning rack 4; the elastic piece 53 is mainly used for ensuring that the protrusion 54 can perform telescopic motion relative to the arc-shaped positioning rack 4, so that the protrusion 54 can not interfere with the sliding of the arc-shaped track 6 in the pitching process of the head assembly 1. The spring plate 53 specifically extends from a wall surface of the first opening 3201 along the arc length direction of the first slider 3213. The first openings 3201 are arranged, so that the three directions of the periphery of the elastic piece 53 are in a hollowed-out state, and the elastic piece 53 is convenient to elastically deform.

Preferably, the first slider 3213 is provided with two first openings 3201 spaced along the arc length direction of the arc track 6, and each first opening 3201 is provided with a spring plate 53 and a protrusion 54. More preferably, two protrusions 54 are respectively disposed at the ends of the two elastic pieces 53, which are close to each other, on the same first slider 3213. Here, two elastic positioning structures 5 are formed on each first slider 3213, which is advantageous in ensuring reliability of pitching positioning of the head assembly 1. Of course, in a specific application, the number of the elastic positioning structures 5 provided on each first slider 3213 is not limited to two, but may be one, three, four, or the like.

Preferably, the first slider 3213 and the elastic positioning structure 5 are integrally formed, so that on one hand, the subsequent assembly procedure of the elastic positioning structure 5 and the first slider 3213 can be omitted, thereby being beneficial to improving the production efficiency of the product; on the other hand, the manufacturing precision and quality of the product can be guaranteed. The elastic positioning structure 5 and the first slider 3213 are preferably manufactured and formed integrally from plastic.

Preferably, the first slider 3213 is fastened to the panel 311 of the connection bracket 31 by a screw, and is fastened reliably and is easy to be assembled and disassembled. Of course, in a specific application, the connection manner of the first slider 3213 and the bracket 31 is not limited thereto, for example, the first slider 3213 may be connected to the bracket 31 by a snap connection manner, or the first slider 3213 may be integrally formed with the bracket 31 in a case of manufacturing.

Preferably, both ends of the first slider 3213 disposed opposite to each other in the arc length direction thereof are provided with mounting holes 3204 for connection with the bracket 31, and two first openings 3201 are provided between the two mounting holes 3204 at intervals. The panel 311 of the bracket 31 is provided with a connecting hole (not shown), and a screw can lock the first slider 3213 to the bracket 313 through the mounting hole 3204 and the connecting hole during specific installation. Here, the mounting holes 3204 are formed at two ends of the first slider 3213 in the arc length direction, which can be beneficial to ensuring stability and reliability of the first slider 3213 mounted on the bracket 31, thereby being beneficial to ensuring stability of the first slider 3213 on the head assembly 1.

Preferably, two first sliders 3213 are provided, and the two first sliders 3213 are symmetrically mounted on the inner wall surfaces 3111 of the left and right side panels 311 of the bracket 31. Theoretically, the greater the number of first sliders 3213, the smoother the installation of the head assembly 1, but the relatively higher the cost thereof; in practical application, the structure of the first sliding blocks 3213 in this embodiment is adopted, the number of the first sliding blocks 3213 is two, and the installation stability of the head assembly 1 can already meet the reliability test of the product, so that the number of the first sliding blocks 3213 is two, thereby not only meeting the reliability design requirement of the household appliance, but also being beneficial to controlling the cost of the product. Of course, in a specific application, the number of the first sliders 3213 is not limited to two, and may be four, six, or more than six, for example.

In addition to the above-mentioned differences, the other structures of the household electrical appliance provided in this embodiment can be optimally designed according to the first embodiment, and will not be described in detail herein.

Embodiment III:

the difference between the household appliance provided in this embodiment and the first and second embodiments lies mainly in the structure of the arc track 6, the installation mode of the sliding member 32, the setting position of the arc positioning rack 4, and the setting position of the elastic positioning structure 5, and is specifically expressed in that: as shown in fig. 1 to 11, in the first embodiment and the second embodiment, two arc-shaped sliding grooves for sliding the sliding member 32 are provided in the arc-shaped rail 6, the two arc-shaped sliding grooves are provided on the left and right sides of the width direction of the arc-shaped rail 6, the sliding member 32 is assembled in the arc-shaped rail 6 from the left and right outer sides of the arc-shaped rail 6, the two arc-shaped positioning racks 4 are respectively provided toward the mounting openings 611 of the two arc-shaped sliding grooves, and each elastic positioning structure 5 is respectively extended from the left and right outer sides of the arc-shaped rail 6 toward the two arc-shaped sliding grooves; in this embodiment, as shown in fig. 12-13, only one arc chute is provided in the arc track 6 for sliding the sliding member 32, and the arc chute is disposed at a middle position in the width direction of the arc track 6, the sliding member 32 is assembled in the arc track 6 from the middle position of the arc track 6, two arc positioning racks 4 are respectively disposed toward the middle position of the arc chute, and each elastic positioning structure 5 is respectively extended from the middle position of the arc track 6 toward the left and right sides. Specifically, in this embodiment, the arc track 6 is provided with a dodge port 62 which is opened towards the base assembly 2 and has an opening width larger than the width of the bracket 31, and a second arc chute 63 which is communicated with the dodge port 62, the second arc chute 63 includes a middle slot portion 631 which is diametrically opposite to the dodge port 62, and two side slot portions 632 which are respectively located at two sides of the middle slot portion 631 along the width direction of the arc track 6, two arc positioning racks 4 are respectively arranged on the wall surfaces of the two side slot portions 632 which face the middle slot portion 631, and the sliding member 32 is slidably mounted in the second arc chute 63. By adopting the arrangement scheme in the embodiment, the effect of sliding fit between the sliding member 32 and the arc-shaped track 6 and the effect of elastically limiting the arc-shaped track 6 from the left side and the right side of the width direction of the arc-shaped track 6 by at least two elastic positioning structures 5 can be realized. However, in the present embodiment, the width of the bracket 31 is smaller than that of the bracket 31 in the first and second embodiments on the premise that the width of the arc-shaped rail 6 is equal to that of the first and second embodiments, and the reliability of supporting the head assembly 1 by the bracket 31 is slightly poor.

Preferably, the sliding member 32 includes at least two second sliding pieces 322 disposed at intervals along the width direction of the arc-shaped rail 6 and slidably engaged with the two side groove portions 632, respectively, and each second sliding piece 322 is provided with an elastic positioning structure 5. By adopting the installation mode of the sliding member 32 and the elastic positioning structure 5 in the embodiment, the bracket assembly 3 can also support the head assembly 1 from the left side and the right side, thereby being beneficial to ensuring the stability of the bracket assembly 3 for supporting the head assembly 1.

Preferably, the end of the bracket 31 facing the head assembly 1 is provided with two panels 311 facing each other at an interval, the two panels 311 have two inner wall surfaces 3111 facing each other at an interval and two outer wall surfaces 3112 facing each other at an interval, and the second slider 322 includes a second mounting shaft 3221 provided on the outer wall surface 3112 and a second roller 3222 rotatably mounted on the second mounting shaft 3221. The structure of the second sliding member 322 in this embodiment can be optimized according to the design manner of the first sliding member 321 in the first embodiment, but the installation positions are different (the first sliding members 321 in the first embodiment are respectively installed on two opposite outer sides of the bracket 31, and the second sliding members 322 in the first embodiment are respectively installed on two opposite inner sides of the bracket 31), which will not be described in detail herein.

Preferably, the elastic positioning structure 5 includes a spring 51 fitted in the second installation shaft 3221 and a positioning rod 52 having one end connected to the spring 51 and the other end abutting against the arc-shaped positioning rack 4. The structure of the elastic positioning structure 5 in this embodiment can be optimally designed according to the design manner of the elastic positioning structure 5 in the first embodiment, but the installation positions are different, and will not be described in detail herein.

In addition to the above-mentioned differences, the other structures of the household electrical appliance provided in this embodiment can be optimally designed according to the first embodiment, and will not be described in detail herein.

Embodiment four:

the difference between the household appliance provided in this embodiment and the third embodiment lies mainly in the different arrangement modes of the second sliding member 322 and the elastic positioning structure 5, specifically in: as shown in fig. 12-13, in the third embodiment, the second sliding member 322 adopts a roller setting mode, and the elastic positioning structure 5 adopts a combination setting mode of the spring 51 and the positioning rod 52; as shown in fig. 14-15, in this embodiment, the second sliding member 322 adopts a sliding block arrangement mode, and the elastic positioning structure 5 adopts a combination arrangement mode of the elastic sheet 53 and the protrusion 54. Specifically, in the present embodiment, two panels 311 are disposed at opposite intervals at the end of the bracket 31 facing the head assembly 1, the two panels 311 have two inner wall surfaces 3111 disposed opposite intervals and two outer wall surfaces 3112 disposed opposite intervals, and the second slider 322 is a second slider 3223 disposed on the outer wall surfaces 3112. By adopting the arrangement of the second slider 322 and the elastic positioning structure 5 in this embodiment, the sliding member 32 and the arc-shaped track 6 can also be slidably matched, and the at least two elastic positioning structures 5 can respectively perform elastic limiting on the arc-shaped track 6 from the left side and the right side of the width direction of the arc-shaped track 6.

Preferably, the second slider 3223 is provided with a second opening 3202 extending along the arc length direction of the arc track 6, and the elastic positioning structure 5 includes a spring plate 53 extending along the arc length direction of the arc track 6 and protruding into the second opening 3202, and a protrusion 54 protruding into one end of the spring plate 53 and abutting against the arc positioning rack 4. The structures of the second slider 3223 and the elastic positioning structure 5 in the present embodiment can be optimally designed according to the design manner of the first slider 3213 and the elastic positioning structure 5 in the second embodiment, which is not described in detail herein.

In addition to the above differences, the other structures of the household electrical appliance provided in this embodiment can be optimally designed with reference to the second embodiment or the third embodiment, and will not be described in detail herein.

Fifth embodiment:

the main difference between the household electrical appliance provided in this embodiment and the third and fourth embodiments is that the sliding member 32 has a different structure, and is specifically shown in: as shown in fig. 12 to 15, in both the third and fourth embodiments, the slide member 32 includes two slide pieces mounted on opposite sides of the bracket 31 in the width direction of the bracket 31, respectively; in the present embodiment, however, the slide member 32 includes only one slide along the width direction of the bracket 31, as shown in fig. 16 to 19. Specifically, in the present embodiment, the sliding member 32 includes at least one third sliding piece 323 slidably engaged with the second arc chute 63, the third sliding piece 323 is disposed on top of the bracket 31 along the height direction of the bracket 31, and both ends of the third sliding piece 323 located in the two side grooves 632 are provided with the elastic positioning structures 5. By adopting the arrangement mode of the sliding member 32 and the elastic positioning structure 5 in the embodiment, the effect of sliding fit between the sliding member 32 and the arc-shaped track 6 and the effect of elastic limiting the arc-shaped track 6 from the left side and the right side of the width direction of the arc-shaped track 6 by at least two elastic positioning structures 5 can be realized. In order to ensure the stability of the support of the head unit 1 by the bracket unit 3, the width of the third slider 323 extending in the width direction of the bracket 31 in the present embodiment needs to be designed to be larger than the widths of the first slider 321 and the second slider 322 in the third and fourth embodiments, and thus the cost of the sliding member 32 in the present embodiment is slightly higher than the cost of the sliding member 32 in the third and fourth embodiments.

Preferably, the third sliding member 323 is a third roller 3231, and both axial ends of the third roller 3231 are provided with an elastic positioning structure 5, wherein the elastic positioning structure 5 comprises a spring 51 embedded in the third roller 3231 and a positioning rod 52 with one end connected with the spring 51 and the other end abutting against the arc-shaped positioning rack 4. In this embodiment, the elastic positioning structure 5 can be optimally designed according to the design manner of the elastic positioning structure 5 in the first embodiment and the third embodiment, which will not be described in detail herein.

Preferably, at least two third rollers 3231 are provided along the arc length extending direction of the arc-shaped rail 6, which is advantageous in ensuring the stable reliability of the support of the head assembly 1 by the bracket assembly 3.

Preferably, two panels 311 are disposed at opposite intervals at the end of the bracket 31 facing the head assembly 1, the two panels 311 have two end faces facing the head assembly 1, the two end faces are each concavely provided with a number of slots 3113 equal to the number of the third rollers 3231, the third rollers 3231 include three rolling portions disposed at intervals for abutting engagement with the arc track 6, and two clamping portions respectively connected between each two adjacent rolling portions and having an outer diameter smaller than that of the rolling portions, and the two clamping portions of each third roller 3231 are respectively assembled in the slots 3113 of the two panels 311. The clamping groove 3113 and the clamping portion are mainly used for realizing the rotation connection between the third roller 3231 and the bracket 31; the rolling part is mainly used for realizing the sliding fit between the third roller 3231 and the arc-shaped track 6.

Preferably, the clamping groove 3113 includes a notch having an opening width smaller than an outer diameter of the clamping portion and an arc-shaped groove bottom communicating with the notch and having an inner diameter greater than or equal to the outer diameter of the clamping portion, and each clamping portion is fitted into each arc-shaped groove bottom from each notch, respectively. The opening width of the notch is designed to be smaller than the outer diameter of the clamping part, so that the clamping part can be prevented from easily slipping out of the notch after being assembled in the arc-shaped groove bottom. In the specific application, the clamping part can pass through the notch and slide into the arc-shaped groove bottom in a mode of extruding the elastic expansion deformation of the edge of the notch under the action of external force, and after the clamping part is completely clamped into the arc-shaped groove bottom, the external force is removed, the edge of the notch is restored to the original state, and the limiting of the clamping part in the arc-shaped groove bottom is realized.

In addition to the above differences, the other structures of the household electrical appliance provided in this embodiment can be optimally designed with reference to the third embodiment, and will not be described in detail herein.

Example six:

the difference between the household appliance provided in this embodiment and the fifth embodiment is mainly that the third sliding member 323 and the elastic positioning structure 5 are arranged in different manners, specifically: as shown in fig. 16 to 19, in the fifth embodiment, the third sliding member 323 adopts a roller setting mode, and the elastic positioning structure 5 adopts a combination setting mode of the spring 51 and the positioning rod 52; as shown in fig. 20 to 22, in this embodiment, the third sliding member 323 adopts a sliding block arrangement mode, and the elastic positioning structure 5 adopts a combination arrangement mode of the elastic sheet 53 and the protrusion 54. Specifically, in this embodiment, the third sliding member 323 is a third sliding member, the third sliding member includes two connection pins 3232 respectively connected with the two brackets 31 and an arc-shaped block 3233 disposed on the connection pins 3232, the arc-shaped block 3233 is in sliding fit with the arc-shaped track 6, at least two third openings 3203 respectively aligned with the two arc-shaped positioning racks 4 are disposed on the arc-shaped block 3233, an elastic positioning structure 5 is disposed in each of the third openings 3203, and the elastic positioning structure 5 includes a spring plate 53 extending in an arc length direction of the arc-shaped track 6 and a protrusion 54 protruding at one end of the spring plate 53 and abutting against the arc-shaped positioning racks 4. By adopting the arrangement of the third slider 323 and the elastic positioning structure 5 in this embodiment, the sliding member 32 and the arc-shaped track 6 can also be slidably matched, and the at least two elastic positioning structures 5 can respectively perform elastic limiting on the arc-shaped track 6 from the left side and the right side of the width direction of the arc-shaped track 6.

The elastic positioning structure 5 in the present embodiment can be optimally designed with reference to the elastic positioning structure 5 in the second embodiment, and will not be described in detail herein.

In addition to the above differences, the other structures of the household electrical appliance provided in this embodiment can be optimally designed with reference to the fifth embodiment, and will not be described in detail herein.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (14)

1. The household appliance comprises a head assembly, a base assembly and a bracket assembly, wherein one end of the bracket assembly is fixedly connected with the base assembly, and the other end of the bracket assembly is movably connected with the head assembly, and the household appliance is characterized in that an arc-shaped track is arranged at the back of the head assembly, two first arc-shaped sliding grooves which are respectively positioned at two sides of the arc-shaped track along the width direction of the arc-shaped track are arranged on the arc-shaped track, the two first arc-shaped sliding grooves are provided with mounting openings which are laterally opened, the mounting openings of the two first arc-shaped sliding grooves are reversely arranged, arc-shaped positioning racks are respectively arranged on the wall surfaces, opposite to the two mounting openings, of the two first arc-shaped sliding grooves, and a plurality of positioning grooves are formed in the arc-shaped positioning racks along the arc length direction of the arc-shaped positioning racks;

The support assembly is provided with at least two elastic positioning structures, the number of the elastic positioning structures is an even number, one half of the elastic positioning structures elastically prop against the positioning grooves of one arc-shaped positioning rack along a first direction, the other half of the elastic positioning structures elastically prop against the positioning grooves of the other arc-shaped positioning rack along a second direction, and the first direction and the second direction are opposite;

the support assembly comprises a support fixedly connected with the base assembly and a sliding component in sliding fit with the arc-shaped sliding groove, two opposite panels are arranged at the end parts of the support, which face the head assembly, the two panels are provided with two opposite inner wall surfaces and two opposite outer wall surfaces, the two inner wall surfaces are opposite to each other, the sliding component comprises at least two first sliding parts which are arranged on the two inner wall surfaces and are respectively in sliding fit with the two arc-shaped sliding grooves, and the elastic positioning structures are arranged on the first sliding parts.

2. The home appliance of claim 1, wherein the first slider includes a first mounting shaft provided on the inner wall surface and a first roller rotatably mounted on the first mounting shaft.

3. The home appliance of claim 2, wherein the elastic positioning structure includes a spring fitted in the first mounting shaft and a positioning rod having one end connected to the spring and the other end abutting the arc-shaped positioning rack.

4. The home appliance according to claim 1, wherein the first slider is a first slider provided on the inner wall surface.

5. The household appliance of claim 4, wherein the first slider is provided with a first opening extending along the arc length direction of the arc-shaped track, and the elastic positioning structure comprises a spring plate extending along the arc length direction of the arc-shaped track and protruding into the first opening and a protrusion protruding into one end of the spring plate and in abutting fit with the arc-shaped positioning rack.

6. The household appliance comprises a head assembly, a base assembly and a bracket assembly, wherein one end of the bracket assembly is fixedly connected with the base assembly, and the other end of the bracket assembly is movably connected with the head assembly;

The support assembly is provided with at least two elastic positioning structures, the number of the elastic positioning structures is an even number, one half of the elastic positioning structures elastically prop against the positioning grooves of one arc-shaped positioning rack along a first direction, the other half of the elastic positioning structures elastically prop against the positioning grooves of the other arc-shaped positioning rack along a second direction, and the first direction and the second direction are opposite;

the support assembly comprises a support fixedly connected with the base assembly and a sliding component in sliding fit with the arc-shaped track, two opposite panels are arranged at the end part of the support, which faces the head assembly, the two panels are provided with two opposite inner wall surfaces and two opposite outer wall surfaces, the two inner wall surfaces are arranged at opposite intervals, the sliding component comprises at least two second sliding parts which are arranged on the two outer wall surfaces and are respectively in sliding fit with the two second arc-shaped sliding grooves, and the elastic positioning structures are arranged on the second sliding parts.

7. The home appliance of claim 6, wherein the second slider includes a second mounting shaft provided on the outer wall surface and a second roller rotatably mounted on the second mounting shaft.

8. The home appliance of claim 7, wherein the elastic positioning structure comprises a spring fitted in the second mounting shaft and a positioning rod having one end connected to the spring and the other end abutting the arc-shaped positioning rack.

9. The home appliance of claim 6, wherein the second slider is a second slider provided on the outer wall surface.

10. The household appliance according to claim 9, wherein the second slider is provided with a second opening extending along the arc length direction of the arc-shaped track, and the elastic positioning structure comprises a spring plate extending along the arc length direction of the arc-shaped track and protruding into the second opening and a protrusion protruding into one end of the spring plate and in abutting fit with the arc-shaped positioning rack.

11. The household appliance according to claim 6, wherein the sliding member comprises at least one third sliding piece slidingly engaged with the second arc chute, the third sliding piece being provided on a top of the bracket in a height direction of the bracket, both ends of the third sliding piece located in both the side groove portions being provided with the elastic positioning structure.

12. The household appliance of claim 11, wherein the third sliding part is a third roller, the two axial ends of the third roller are both provided with the elastic positioning structure, and the elastic positioning structure comprises a spring embedded in the third roller and a positioning rod, one end of the positioning rod is connected with the spring, and the other end of the positioning rod is abutted against the arc-shaped positioning rack.

13. The household appliance according to claim 11, wherein the third sliding member is a third sliding block, the third sliding block comprises two connecting legs connected with the two brackets respectively and an arc-shaped block body arranged on the connecting legs, the arc-shaped block body is in sliding fit with the arc-shaped track, at least two third openings aligned with the two arc-shaped positioning racks respectively are arranged on the arc-shaped block body, each third opening is internally provided with an elastic positioning structure, and the elastic positioning structure comprises a spring piece extending and protruding in the third opening along the arc length direction of the arc-shaped track and a protrusion protruding at one end of the spring piece and in abutting fit with the arc-shaped positioning rack.

14. The household appliance according to claim 1 or 6, wherein the household appliance is a fan or a warmer or a lighting fixture.