CN218123278U - Knob structure for washing machine - Google Patents

Abstract

The utility model provides a knob structure for washing machine, but including the base, inlay establish in base one end axial activity press the seat and install between the base and press the seat and press a spacing knob seat of seat axial, the one end that the base was kept away from to the knob seat is provided with the holding tank, presses the seat at least part to inlay and establishes in the holding tank, is provided with the wash port with outside intercommunication on the tank bottom of holding tank. The utility model discloses an one end of keeping away from the base at the knob seat sets up the holding tank to set up and press down the seat at least part and inlay and establish in the holding tank, can reduce the knob seat and press down the clearance between the seat, reduce the entering volume of water, through the wash port that the tank bottom at the holding tank set up with outside intercommunication, can make get into the knob seat and press down the hydroenergy between the seat and in time discharge, prevent that water infiltration knob structure is inside to cause the harm to the circuit, improve the waterproof performance of knob structure.

Description

Knob structure for washing machine

Technical Field

The utility model belongs to the technical field of washing machine, concretely relates to knob structure for washing machine still relates to a washing machine who installs this knob structure.

Background

The washing machine is an essential household appliance in daily life, and as the performance requirements of people on the washing machine are continuously improved, the structural improvement of the washing machine also becomes a content of important attention of research and development personnel. At present, a washing machine generally includes a control panel and a knob structure installed on the control panel, and the knob structure and a plurality of keys are cooperatively operated to realize setting and switching of program functions such as washing modes or washing time.

The knob structure generally comprises a base and a knob main body arranged on the base, wherein a display screen assembly is arranged on the knob main body, and a PCB and a circuit for realizing the knob function are arranged in the knob structure. When the washing machine works, water often exists around the knob structure, the water easily flows into the knob body from a gap of the knob body, if the water entering the knob body is discharged in time, the water is easy to permeate from a gap inside the knob structure, a PCB (printed circuit board) and a circuit in the knob structure are damaged, and a large safety accident can be caused in a serious case.

Therefore, it is a technical problem to be solved by those skilled in the art to design a knob structure capable of discharging water entering the knob body in time and preventing the water from entering the knob structure to damage the PCB and the circuit.

In view of this special the utility model is put forward.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem lies in overcoming prior art's is not enough, the utility model provides a knob structure for washing machine, one end through keeping away from the base at the knob seat sets up the holding tank, and set up the at least part of press the seat and inlay and establish in the holding tank, can reduce the clearance between knob seat and the press the seat, reduce the entering volume of water, wash port through tank bottom setting at the holding tank and outside intercommunication, can make the hydroenergy that gets into between knob seat and the press the seat in time discharge, prevent that the inside harm that causes the circuit of water infiltration knob structure, the problem of getting into the water in the knob main part because of unable in time discharge and damaging the circuit in the knob structure among the prior art has been overcome.

In order to solve the technical problem, the utility model adopts the following basic concept:

the utility model provides a knob structure for washing machine, includes the base, inlays and establishes but the axial activity press the seat in base one end and install between base and press the seat with press the axial spacing knob seat of seat, the one end that the base was kept away from to the knob seat is provided with the holding tank, presses the seat to inlay at least partially and establishes in the holding tank, is provided with the wash port with outside intercommunication on the tank bottom of holding tank.

Further, still include:

the guide ribs are coaxially arranged at the bottom of the accommodating groove close to the groove wall along the circumferential direction;

the guide groove is arranged on the pressing seat and correspondingly sleeved on the guide rib;

the drain holes are uniformly formed between the guide ribs and the groove wall of the accommodating groove.

Furthermore, the inner ring of the guide rib is provided with a first convex rib, and the knob seat is abutted against the pressing seat through the first convex rib.

Further, the outer peripheral face parallel and level of base one end is kept away from to knob seat, press the seat, carry on spacingly through decorating the circle:

the lug is arranged on the inner wall of the decorative ring;

the clamping grooves comprise first clamping grooves extending along the axial direction and second clamping grooves extending along the circumferential direction, the first clamping grooves penetrate through the circumferential wall of the pressing base from one end, far away from the base, of the pressing base and at least partially extend to the circumferential wall of the knob base, and the second clamping grooves circumferentially extend from one end, close to the base, of the first clamping grooves and are matched with the bumps in shape.

Further, the peripheral diameter of the decorative ring is gradually increased from one end far away from the base to one end close to the base;

the lug setting is decorating the one end that the circle is close to the base, including decorating a plurality of circle circumference range, a plurality of draw-in grooves and lug one-to-one along decorating.

Further, press the seat including coaxial first cylinder and the second cylinder that sets up, first cylinder is at least partially inlayed and is established in the holding tank, and the second cylinder is coaxial to run through the tank bottom of holding tank and extend to the base in with the base in the PCB board cooperation.

Further, still establish the periphery at the second cylinder, be used for the knob seat to be close to the spacing U type spare of one end of base including:

the first part is sleeved on the periphery of the second cylinder, the end part of the first part is abutted against the first cylinder, and a connecting structure is arranged between the first part and the pressing seat;

the second part is arranged on the periphery of the first part, the peripheral wall of the second part is attached to the inner wall of the base, and the second part is abutted against the knob seat through a second convex rib arranged at the end part of the second part;

and the third part extends along the radial direction and is connected between the first part and one end of the second part far away from the first cylinder.

Further, the knob seat further comprises:

the first extension part extends from the groove bottom of the accommodating groove to the base and is sleeved at the end part of the base;

the second extending part is arranged on the inner periphery of the first extending part and is abutted against the second convex rib on the U-shaped part, and the peripheral wall of the second extending part is flush with the peripheral wall of the U-shaped part;

and the third extension part is arranged on the second extension part, and the peripheral wall is attached to the inner wall of the second part.

Furthermore, the base is arranged in a cylindrical shape, and the middle part of the base is provided with a first supporting plate, so that the base forms a first supporting groove facing the knob seat and a second supporting groove back to the knob seat;

the first supporting plate is provided with a first installation part which extends into the first supporting groove and is connected with the pressing seat, and a second installation part which extends into the second supporting groove and is used for fixing the PCB.

Further, a switch button is arranged between the second column body and the PCB;

the outer peripheral wall of the base is provided with a radial bulge which is used for being abutted against the knob seat, and the distance between the radial bulge and the knob seat is equal to the distance between a pressing column of the switch key and the PCB.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has:

1. the utility model discloses an one end of keeping away from the base at the knob seat sets up the holding tank to set up and press down the seat at least part and inlay and establish in the holding tank, can reduce the knob seat and press down the clearance between the seat, reduce the entering volume of water, through the wash port that the tank bottom at the holding tank set up with outside intercommunication, can make get into the knob seat and press down the hydroenergy between the seat and in time discharge, prevent that water infiltration knob structure is inside to cause the harm to the circuit, improve the waterproof performance of knob structure.

2. The utility model discloses a set up the direction muscle and the guide way of mutually supporting on the tank bottom of holding tank and the contact surface of pressing the seat, on the one hand, can improve the guidance quality of pressing the seat to the knob seat rotation, on the other hand can carry out separation, direction to getting into the water in the clearance between knob seat, the pressing the seat, makes hydroenergy enough in time follow wash port discharge knob structure.

3. The utility model discloses a set up first protruding muscle, the protruding muscle of second, can reduce the knob seat and press the butt area between the seat, between knob seat and the U type spare, be favorable to reducing the frictional force that the knob seat rotated the in-process, improve the rotatory smooth and easy nature of knob seat, improve user's use and experience.

4. The utility model discloses a set up radial arch on the periphery wall of base, can't continue to press after making switch button and PCB board contact, accomplishing circuit UNICOM, can prevent to cause the condition of PCB board damage to take place because of the too big user's application of force.

The following describes embodiments of the present invention in further detail with reference to the attached drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, the illustrative embodiments and the description of the invention serve to explain the invention without unduly limiting the invention. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic view of an overall structure of a knob structure in an embodiment of the present invention;

fig. 2 is a cross-sectional view of a knob structure in an embodiment of the present invention;

FIG. 3 is an exploded view of the knob structure in an embodiment of the present invention;

fig. 4 is a cross-sectional view of the embodiment of the present invention shown in fig. 3;

fig. 5 is a schematic view of an internal structure of the knob body according to the embodiment of the present invention;

fig. 6 is an exploded view of the knob body according to the embodiment of the present invention;

FIG. 7 is a schematic view of the knob seat according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a knob holder according to an embodiment of the present invention;

fig. 9 is a schematic view of the overall structure of the base according to the embodiment of the present invention;

fig. 10 is a cross-sectional view of a base in an embodiment of the invention;

fig. 11 is a schematic view of the overall structure of the pressing base in the embodiment of the present invention;

fig. 12 is a sectional view of the pressing base according to the embodiment of the present invention;

fig. 13 is a schematic view of the overall structure of the U-shaped member in the embodiment of the present invention;

fig. 14 is a cross-sectional view of a U-shaped member in an embodiment of the present invention;

fig. 15 is a schematic view of the overall structure of the switch button according to the embodiment of the present invention;

fig. 16 is a sectional view of a switch button according to an embodiment of the present invention;

fig. 17 is a cross-sectional view of the seal ring according to the embodiment of the present invention.

Description of the main elements in the figures:

100. a base; 101. a first support groove; 102. a second support groove; 103. a first support plate; 104. a first jaw; 105. a chute; 106. a radial projection; 107. mounting grooves; 200. a knob seat; 201. accommodating grooves; 202. a drain hole; 203. a first extension portion; 204. a second extension portion; 205. a third extension portion; 206. a guide rib; 207. a first rib; 208. rotating the sound generator; 209. a second support plate; 210. a card slot; 300. a decorative ring; 301. a bump; 400. a display screen assembly; 401. a glass lens; 402. a display module; 500. a pressing seat; 501. a first column; 502. a second cylinder; 503. a first bayonet; 504. a guide groove; 505. a second jaw; 506. a rib; 600. a rear cover; 601. a vent; 602. a water retaining brim; 603. a seal ring; 700. a front cover; 800. a PCB board; 801. switching a key; 802. a silicone membrane; 803. pressing the column; 804. an elastic restoring part; 900. a U-shaped member; 901. a first portion; 902. a second portion; 903. and a third section.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 to 17, in an embodiment of the present invention, a knob structure for a washing machine is described, which includes a base 100 and a knob main body installed on the base 100, and the knob main body can perform a circumferential movement and an axial movement with respect to the base 100 to start and stop the washing machine, or select different programs.

As shown in fig. 9 and 10, in the present embodiment, the base 100 is provided in a cylindrical shape, and a first support plate 103 is provided in the middle of the cylindrical base 100, and the first support plate 103 extends from the middle of the inner wall of the cylindrical base 100 toward the inside of the base 100 in a radial direction, so that the base 100 is formed with a first support groove 101 and a second support groove 102 facing opposite directions. First installation department that extends to first supporting groove 101 and the second installation department that extends to second supporting groove 102 are provided with on first backup pad 103, the knob main part is installed on first supporting groove 101, with the cooperation of first installation department, and PCB board 800 is installed in second supporting groove 102, cooperates with second mounting structure.

In this embodiment, the second installation department is a plurality of first screw thread posts and reference column of setting on first backup pad 103, set up on the PCB board 800 with each first screw thread post one-to-one complex mounting hole and with each reference column one-to-one complex locating hole, during the installation of PCB board 800, the reference column joint is in the locating hole, and the screw hole on the first screw thread post is corresponding with the mounting hole on the PCB board 800, and PCB board 800 passes the mounting hole through keeping away from first backup pad 103 side from PCB board 800, supports the inslot 102 with screw hole complex screw fixation at the second of base 100. Preferably, the first threaded posts and the positioning posts are uniformly arranged around the axis of the base 100.

As shown in fig. 5 and 6, in the present embodiment, the knob body includes a pressing base 500 and a knob base 200, the pressing base 500 is circumferentially and limitedly engaged with the base 100 and can axially reciprocate relative to the base 100, and the knob base 200 is axially and limitedly engaged with the pressing base 500 and can circumferentially move relative to the base 100.

The cell wall at the first supporting groove 101 of base 100 is established to a pot head of knob seat 200, and the one end that base 100 was kept away from to knob seat 200 is provided with holding tank 201, and the coaxial breach that is provided with in the middle part of the tank bottom of holding tank 201, press seat 500 certainly the tank bottom and the cooperation of first installation department that holding tank 201 were run through to the breach, just press seat 500 at least part to inlay and establish in holding tank 201.

As shown in fig. 1 to 6, 11 and 12, in the present embodiment, the pressing base 500 includes a first cylinder 501 and a second cylinder 502 coaxially disposed, and the diameter of the second cylinder 502 is smaller than that of the first cylinder 501. First cylinder 501 is at least partly to inlay and establish in holding tank 201, and second cylinder 502 sets up in one side that first cylinder 501 is close to base 100, and second cylinder 502 certainly in the breach of holding tank 201 tank bottom runs through and extends to base 100, and second cylinder 502 cooperatees with first installation department.

In this embodiment, the first mounting portion is wrapped around the outer circumferential wall of the second column 502, and includes the first claw 104 and the sliding groove 105 disposed around the second column 502. The first clamping jaw 104 is used for clamping with a first clamping opening 503 on the outer peripheral wall of the second column body 502 to fix the pressing seat 500. The outer peripheral wall of one end of the second cylinder 502 far away from the first cylinder 501 is provided with a convex rib 506 matched with the sliding groove 105, and the convex rib 506 is arranged in the sliding groove 105. The sliding groove 105 is used for limiting the pressing base 500 to reciprocate only in the axial direction. Preferably, the inner side of the end of the first claw 104 far away from the first support plate 103 is provided with an inclined surface inclining outwards from the second support groove 102 and the first support groove 101, and the corresponding position of the end of the second cylinder 502 far away from the first cylinder 501 is provided with an inclined surface inclining inwards from the first support groove 101 and the second support groove 102; the opening of the sliding groove 105 at the end far away from the first supporting plate 103 is gradually enlarged from the second supporting groove 102 and the first supporting groove 101, and the end of the protruding rib 506 far away from the first cylinder 501 is narrowed inward from the first supporting groove 101 and the second supporting groove 102, thereby facilitating installation.

In this embodiment, the end of the first column 501 away from the second column 502 is axially limited by the decoration ring 300 from the knob seat 200. Specifically, the one end that first cylinder 501 is close to second cylinder 502 inlays the inner wall sliding fit who establishes in holding tank 201, periphery wall and holding tank 201, the periphery wall of the one end that second cylinder 502 was kept away from to first cylinder 501 and the periphery wall parallel and level of holding tank 201, decorate circle 300 cover establish on the periphery wall of first cylinder 501 and holding tank 201, with holding tank 201's periphery wall joint, decorate the one end that circle 300 kept away from base 100 and be provided with the hem of inside extension, the hem is spacing with the one end axial of the second cylinder 502 that first cylinder 501 kept away from. That is, the decoration ring 300 is integrally connected to the knob base 200 and axially spaced from the pressing base 500, thereby axially spacing the knob base 200 and the pressing base 500.

A lug 301 is arranged on the inner wall of the decorative ring 300; the first column 501 and the outer peripheral wall of the accommodating groove 201 are provided with a clamping groove 210, and the protrusion 301 is clamped in the clamping groove 210. In this embodiment, the locking groove 210 includes a first locking groove extending along the axial direction and a second locking groove extending along the circumferential direction, the first locking groove penetrates through the circumferential wall of the first cylinder 501 from the end of the first cylinder 501 far away from the second cylinder 502 and extends at least partially to the outer circumferential wall of the receiving groove 201, and the second locking groove extends circumferentially from the end of the first locking groove near the base 100 and matches with the shape of the protrusion 301. During installation, the first clamping groove in the peripheral wall of the first cylinder 501 is aligned with the first clamping groove in the peripheral wall of the accommodating groove 201, the decorative ring 300 is buckled on the peripheral walls of the first cylinder 501 and the accommodating groove 201, the lug 301 on the inner wall of the decorative ring 300 is inserted into the first clamping groove, then the decorative ring 300 is screwed and fixed by keeping the knob seat 200 still, and the lug 301 is clamped in the second clamping groove to complete installation of the decorative ring 300. When the decorative ring 300 needs to be disassembled, the decorative ring 300 can be taken down only by keeping the knob seat 200 still and reversely twisting the decorative ring 300, and the problem that the existing decorative ring 300 is easy to damage in the disassembling process is effectively solved.

Preferably, in this embodiment, the second locking groove is configured to be a hole shape adapted to the shape of the protrusion 301, an outer diameter of an end of the second locking groove close to the first locking groove is greater than a distance from the protrusion 301 to an axis of the bezel 300, and a guiding inclined plane that is inclined outward gradually from the first locking groove and the second locking groove is disposed at a portion connected between the first locking groove and the second locking groove. When the decoration ring 300 is installed, the decoration ring 300 is screwed hard, the lug 301 is pressed against the guide inclined plane to enable the decoration ring 300 to generate elastic deformation expanding outwards, the decoration ring 300 is continuously screwed, the lug 301 is clamped in place, and the decoration ring 300 contracts, so that the decoration ring 300 is firmly installed on the knob seat 200, and the noise generated due to loosening of the decoration ring 300 is prevented.

Preferably, in this embodiment, the opening of the second card slot close to the first card slot is gradually enlarged from the second card slot to the first card slot, so as to improve the guidance of the bump 301.

In this embodiment, the first column 501 is axially limited by the U-shaped member 900 between the end close to the second column 502 and the knob seat 200. Specifically, the U-shaped part 900 is coaxially sleeved on the second column 502, the inner wall of the U-shaped part 900 is connected with the pressing base 500, and the outer peripheral wall of the U-shaped part 900 is attached to the inner wall of the first supporting groove 101 of the base 100 in a sliding fit manner.

Specifically, the U-shaped member 900 includes a first portion 901 covering the outer periphery of the second column 502, a second portion 902 disposed at the outer periphery of the first portion 901, and a third portion 903 connected between the first portion 901 and the second portion 902.

One end of the first part 901 close to the first cylinder 501 abuts against the first cylinder 501, and a connection structure is arranged between the first cylinder 501 and the first part 901 and/or between the outer peripheral wall of the second cylinder 502 and the first part 901, and the connection structure comprises a second claw 505 and/or a screw. Preferably, one end of the first cylinder 501 close to the second cylinder 502 is provided with a second claw 505 extending to the base 100 along the axial direction, the plurality of second claws 505 are uniformly arranged around the second cylinder 502, the inner wall of the first portion 901 is provided with a second bayonet corresponding to each second claw 505 one by one, and the second claws 505 are clamped in the second bayonet to fix the U-shaped member 900 on the pressing base 500.

The second portion 902 is arranged on the periphery of the first portion 901, the peripheral wall of the second portion 902 is in fit and sliding fit with the inner wall of the base 100, and one end of the second portion 902 close to the first cylinder 501 abuts against the knob seat 200, so that the axial position between the knob seat 200 and the pressing seat 500 is limited.

The third portion 903 extends in the radial direction and is connected to the ends, away from the first limiting groove, of the first portion 901 and the second portion 902, and the third portion 903 is perpendicular to the first portion 901 and the second portion 902.

Preferably, the U-shaped member 900 accommodates therein an encoder electrically connected to the PCB 800, the encoder is a standard member and has a hollow inner and outer structure, the outer layer is a rotatable portion, and the inner layer is a fixed portion. In this embodiment, the rotatable part is connected to the knob base 200, the fixed part is connected to the third portion 903 of the U-shaped member 900, the washing mode is selected by rotating the rotatable part, and the encoder is electrically connected to the PCB 800 through the FPC board penetrating the third portion 903 and the first support plate 103.

In this embodiment, the knob seat 200 further includes a first extending portion 203 and a second extending portion 204 extending from the bottom of the receiving groove 201 to the base 100, the first extending portion 203 is sleeved on the end of the base 100, the second extending portion 204 is disposed on the inner periphery of the first extending portion 203 and abuts against the second portion 902 of the U-shaped member 900, the outer peripheral wall of the second extending portion 204 is flush with the outer peripheral wall of the U-shaped member 900, and the groove wall of the first supporting groove 101 of the base 100 is clamped between the outer peripheral wall of the U-shaped member 900 and/or the outer peripheral wall of the second extending portion 204 and the inner wall of the first extending portion 203.

The knob seat 200 further comprises a third extending portion 205, the third extending portion 205 is disposed at one end of the second extending portion 204 far away from the receiving groove 201, and an outer peripheral wall of the third extending portion 205 is attached to and slidably fitted with an inner wall of the second portion 902 of the U-shaped member 900.

Preferably, in this embodiment, a drain hole 202 communicating with the outside of the knob body is disposed on the bottom of the receiving groove 201. Through setting up wash port 202, can make the water that gets into in the clearance between circle 300 and knob seat 200, the seat 500 of pressing down can in time discharge, prevent that water infiltration knob structure is inside to cause the harm to the circuit, improves the waterproof performance of knob structure. The drainage holes 202 are disposed at the bottom of the accommodating groove 201 and near the groove wall, and the drainage holes 202 are uniformly arranged around the axis of the knob seat 200.

Preferably, in this embodiment, a circle of guiding ribs 206 is coaxially disposed at the bottom of the receiving groove 201 and near the wall of the receiving groove 201, a guiding groove 504 corresponding to the guiding ribs 206 is disposed on the first column 501 of the pressing base 500, and the guiding ribs 206 are embedded in the guiding groove 504. The drainage holes 202 are uniformly arranged between the groove wall of the accommodating groove 201 and the guiding rib 206. By arranging the guide rib 206 and the guide groove 504 which are mutually matched on the contact surface between the groove bottom of the accommodating groove 201 and the pressing base 500, on one hand, the guidance of the pressing base 500 for rotating the knob base 200 can be improved, and on the other hand, water entering the gap between the knob base 200 and the pressing base 500 can be separated and guided, so that the water can be discharged out of the knob structure from the water discharge hole 202 in time.

Preferably, in this embodiment, a circle of first ribs 207 coaxial with the knob base 200 is further disposed on the inner ring of the guide rib 206, and the knob base 200 abuts against the pressing base 500 through the first ribs 207. The end of the second part 902 of the U-shaped element 900 remote from the third part 903 is provided with a second rib, and the second part 902 abuts against the second extension 204 via the second rib. Through setting up first protruding muscle 207, the protruding muscle of second, can reduce knob seat 200 and press the butt area between the seat 500, between knob seat 200 and the U type spare 900, be favorable to reducing the frictional force that knob seat 200 rotated the in-process, improve the rotatory smooth and easy nature of knob seat 200, improve user's use and experience.

Preferably, in this embodiment, a rotary sound generator 208 is further disposed between the knob base 200 and the U-shaped member 900. The peripheral wall of the first part 901 of the U-shaped part 900 is provided with a plurality of uniformly distributed concave-convex grooves, the plurality of concave-convex grooves form a gear-shaped structure on the peripheral wall of the first part 901, and the concave-convex grooves are arranged opposite to the rotating sound generator 208. When the knob holder 200 rotates relative to the U-shaped member 900, the rotating sound generator 208 on the knob holder 200 moves relative to the concave-convex grooves on the first portion 901, and the steel balls of the rotating sound generator 208 roll along the concave-convex grooves, move outwards for a moment, move inwards for a moment, and contact with the outer peripheral wall of the concave-convex first portion 901, so that a prompt sound for making a click is given. For example, the outer end of the steel ball enters the concave part of the concave-convex groove first, the spring is in an original length or compression state at the moment, then enters the convex part of the concave-convex groove, the convex part provides acting force for the steel ball pointing to the spring, so that the steel ball and the spring are extruded, and when the steel ball enters the next concave part of the concave-convex groove, the steel ball moves outwards again under the elastic force of the spring.

In this embodiment, a second support plate 209 extending along the radial direction is disposed on the inner wall of the second extension portion 204 of the knob base 200, a generator main body is disposed between the second support plate 209 and the inner wall of the second extension portion 204, a groove extending along the radial direction of the knob base 200 is disposed on the generator main body, a spring and a steel ball are accommodated in the groove, and at least a portion of the steel ball protrudes out of the notch and the concave-convex groove of the groove to abut against each other. Preferably, the rotary sound generator 208 is provided in plurality in a uniform arrangement in the circumferential direction.

As shown in fig. 1 to fig. 4, in this embodiment, a display screen assembly 400 is further embedded on the pressing base 500, and the display screen assembly 400 includes a display module 402 and a glass lens 401 adhered to the top of the display module 402 by an optical adhesive.

One end, far away from second cylinder 502, of first cylinder 501 of pressing seat 500 is provided with the first spacing groove with glass lens 401's shape looks adaptation, glass lens 401 inlays and establishes at the first spacing inslot of pressing seat 500, bonds each other through a week filling adhesive between the inboard groove bottom that is close to border department and first spacing groove of glass lens 401.

A second limiting groove is further formed in the first cylinder 501, the second limiting groove is formed by inwards recessing the groove bottom of the first limiting groove, a supporting block used for supporting the display module 402 is arranged on the groove bottom of the second limiting groove, and a gasket is arranged between the supporting block and the display module 402.

A third limiting groove is formed in the second cylinder 502, the third limiting groove extends from the groove bottom of the second limiting groove to the inner portion of the second cylinder 502 in a concave mode, and a front cover 700 used for sealing the notch of the third limiting groove is embedded in the groove bottom of the second limiting groove. Specifically, a circle of glue filling grooves extending around the notch of the third limiting groove are formed in the groove bottom of the second limiting groove, and the periphery of the front cover 700 is embedded in the glue filling grooves and fixed to the pressing base 500 through glue filling in the glue filling grooves.

In this embodiment, a routing channel extending along the axial direction is disposed in the third limiting groove, and the display screen assembly 400 is electrically connected to the PCB 800 through the FPC board sequentially passing through the front cover 700, the routing channel, and the groove bottom of the third limiting groove.

Preferably, in this embodiment, a protective film is further attached to the outer end surface of the glass lens 401.

In this embodiment, a through hole for the second column 502 to pass through is formed in the first support plate 103, and a switch button 801 is disposed between the second column 502 and the PCB 800. The switch button 801 comprises a silicone membrane 802 installed on the PCB 800, a pressing column 803 and an elastic resetting part 804 hermetically connected between the silicone membrane 802 and the pressing column 803, one end of the pressing column 803 abuts against the second cylinder 502, and the other end of the pressing column 803 is used for contacting with the PCB 800 and completing circuit communication. When the pressing base 500 presses the pressing column 803 to move towards the PCB 800, the elastic reset portion 804 is driven to deform; when the pressing force on the pressing base 500 is removed, the elastic reset part 804 starts to deform and reset, and drives the pressing column 803 to move upwards and reset, and the pressing column 803 pushes the pressing base 500 to reset the knob body. Preferably, the silicone membrane 802 is provided with a plurality of pressing columns 803 and elastic reset portions 804, the pressing columns 803 are located at the center positions of the elastic reset portions 804, and the pressing columns 803 and the elastic reset portions 804 are uniformly arranged on the silicone membrane 802 around the axis of the knob structure, so that the rebound effect can be enhanced.

Preferably, in this embodiment, the display screen assembly 400 is electrically connected to the PCB 800 through the metal sheets sequentially penetrating through the front cover 700, the routing channel, and the bottom of the third limiting groove. The metal sheet is the shell fragment of once buckling at least, and when the user pressed the knob main part, the metal sheet produced elastic deformation, and after the pine hand, the metal sheet can assist the resilience of knob main part.

Preferably, in this embodiment, a radial protrusion 106 for abutting against the first extension 203 is disposed on the outer peripheral wall of the base 100, and a distance between the radial protrusion 106 and the first extension 203 is equal to a distance between the pressing column 803 of the switch key 801 and the PCB 800. By arranging the radial protrusion 106, the switch key 801 cannot be pressed continuously after contacting with the PCB 800 and completing circuit communication, and the condition that the PCB 800 is damaged due to overlarge force applied by a user can be prevented.

As shown in fig. 1 to 4, in the present embodiment, a rear cover 600 is embedded in the notch of the second supporting groove 102 of the base 100, and a sealing ring 603 is disposed between the rear cover 600 and the inner wall of the base 100. Specifically, an installation groove 107 which is recessed inwards along the axial direction is formed in a notch of the second support groove 102, one end of a sealing ring 603 with a T-shaped cross section is embedded in the installation groove 107, the other end of the sealing ring extends outwards, and the rear cover 600 is buckled on the sealing ring 603.

Preferably, the sealing ring 603 is at least partially embedded between the rear cover 600 and the inner wall of the second supporting groove 102. The inner ring of one side of the sealing ring 603 far away from the first supporting plate 103 is arranged to be an inclined plane inclining outwards, and the shape of the outer edge of the rear cover 600 is matched with the shape of the sealing ring 603 far away from the first supporting plate 103, so that the effect of the sealing ring 603 can be enhanced.

In this embodiment, a third bayonet extending into the second supporting groove 102 is disposed at an inner edge of the rear cover 600, and a third claw corresponding to the third bayonet is disposed on an inner wall of the second mounting groove 107, and the third claw is engaged with the third bayonet to assemble the rear cover 600 on the base 100. Preferably, the third clamping openings are uniformly arranged around the axis of the rear cover 600 along the circumferential direction, and the third clamping claws correspond to the third clamping openings one to one.

Preferably, in this embodiment, the first support plate 103 is further provided with a second threaded post extending to the notch of the second support groove 102 along the inner wall of the second support groove 102, the rear cover 600 is provided with a mounting post corresponding to the second threaded post, after the rear cover 600 is fastened, at least part of the mounting post is embedded in the second threaded post, and the mounting of the rear cover 600 is completed by screws sequentially passing through the mounting post and the threaded post. The second threaded columns are arranged in a plurality of uniform arrangement along the inner wall of the second support groove 102, and the mounting columns are matched with the second threaded columns in a one-to-one correspondence manner.

In this embodiment, the vent 601 is provided on the rear cover 600, and the water blocking eaves 602 extending outwards around the vent 601 is provided outside the rear cover 600, so that good ventilation effect can be ensured, external water can be prevented from flowing into the vent 601, and the inside of the knob structure is kept dry. In this embodiment, the circuit (power line and signal line) of the PCB 800 passes through the vent 601 and is connected to the computer board of the washing machine and/or the control panel of the washing machine.

Example two

The embodiment relates to a washing machine, which comprises a control panel, wherein the front side of the control panel is provided with a touch display screen, the back side of the control panel is provided with a touch display control system, and the control panel is also provided with the knob structure; the touch display control system is electrically connected to the PCB board 800. The control panel is made of transparent materials such as glass, acrylic, ABS plastic, plastic-coated injection molding and the like.

The front side of the whole control panel is a touch display area. The touch display control system and the information displayed by the display screen component can be shared in real time. The control panel, the touch display control system, the knob structure and the touch display screen are all arranged on the washing machine. Program selection can be carried out through a touch display control system and a knob structure, and the operation of the washing machine is controlled. The touch display control system is electrically connected with the knob structure. The content displayed by the display screen assembly 400 is shared with the content displayed on the touch display screen in real time and there is a more detailed display description on the touch display screen.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments using the above-mentioned teachings without departing from the scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are also within the scope of the present invention.

Claims (10)

1. The utility model provides a knob structure for washing machine, includes base (100), inlay and establish pressing seat (500) that can the axial activity in base (100) one end, and install between base (100) and pressing seat (500) and press knob seat (200) of seat (500) axial spacing, its characterized in that, the one end that base (100) was kept away from in knob seat (200) is provided with holding tank (201), press seat (500) at least part to inlay and establish in holding tank (201), be provided with wash port (202) with outside intercommunication on the tank bottom of holding tank (201).

2. The knob structure for washing machine according to claim 1, further comprising:

the guide ribs (206) are coaxially arranged at the positions, close to the groove walls, of the groove bottoms of the accommodating grooves (201) along the circumferential direction;

the guide groove (504) is arranged on the pressing seat (500) and is correspondingly sleeved on the guide rib (206);

the drain holes (202) are uniformly arranged between the guide ribs (206) and the groove wall of the accommodating groove (201).

3. The knob structure for washing machine according to claim 2, wherein the inner ring of the guide rib (206) is provided with a first rib (207), and the knob base (200) abuts against the pressing base (500) through the first rib (207).

4. The knob structure for washing machine according to claim 1, wherein the outer peripheral surfaces of the knob seat (200) and the pressing seat (500) at the end far from the base (100) are flush, and are limited by the decoration ring (300):

the lug (301) is arranged on the inner wall of the decorative ring (300);

the clamping groove (210) comprises a first clamping groove extending along the axial direction and a second clamping groove extending along the circumferential direction, the first clamping groove penetrates through the circumferential wall of the pressing base (500) from one end, far away from the base (100), of the pressing base (500) and at least partially extends to the circumferential wall of the knob base (200), and the second clamping groove extends circumferentially from one end, close to the base (100), of the first clamping groove and is matched with the lug (301) in shape.

5. The knob structure for washing machine according to claim 4, wherein the outer peripheral diameter of the bezel (300) is gradually increased from an end distant from the base (100) to an end close to the base (100);

the lug (301) is arranged at one end, close to the base (100), of the decoration ring (300) and comprises a plurality of clamping grooves (210) which are arranged along the circumferential direction of the decoration ring (300), and the clamping grooves correspond to the lug (301) one by one.

6. A knob structure for a washing machine according to any one of claims 1 to 5,

the pressing seat (500) comprises a first cylinder (501) and a second cylinder (502) which are coaxially arranged, the first cylinder (501) is at least partially embedded in the accommodating groove (201), and the second cylinder (502) coaxially penetrates through the groove bottom of the accommodating groove (201) and extends into the base (100) to be matched with the PCB (800) in the base (100).

7. The knob structure for washing machine according to claim 6, further comprising a U-shaped member (900) provided around the second column (502) for limiting an end of the knob base (200) close to the base (100), comprising:

a first part (901) which is sleeved on the periphery of the second column body (502), the end part of the first part is abutted against the first column body (501), and a connecting structure is arranged between the first part and the pressing seat (500);

a second portion (902) which is provided on the outer periphery of the first portion (901), the outer peripheral wall of which is in contact with the inner wall of the base (100), and which abuts against the knob base (200) via a second rib provided at the end thereof;

and the third part (903) extends along the radial direction and is connected between the ends, away from the first cylinder (501), of the first part (901) and the second part (902).

8. A knob structure for a washing machine according to claim 7, wherein the knob base (200) further comprises:

the first extending part (203) extends from the groove bottom of the accommodating groove (201) to the base (100) and is sleeved at the end part of the base (100);

the second extending part (204) is arranged on the inner periphery of the first extending part (203) and is abutted against the second convex rib on the U-shaped part (900), and the peripheral wall is flush with the outer peripheral wall of the U-shaped part (900);

and a third extension (205) provided on the second extension (204), the outer peripheral wall being in contact with the inner wall of the second portion (902).

9. The knob structure for washing machine according to claim 6, wherein the base (100) is formed in a cylindrical shape, and a first support plate (103) is provided in the middle portion thereof, so that the base (100) forms a first support groove (101) facing the knob base (200) and a second support groove (102) facing away from the knob base (200);

the first support plate (103) is provided with a first mounting part extending into the first support groove (101) and connected with the pressing seat (500), and a second mounting part extending into the second support groove (102) and used for fixing the PCB (800).

10. The knob structure for washing machine according to claim 9, wherein a switch button (801) is provided between the second cylinder (502) and the PCB board (800);

the outer peripheral wall of the base (100) is provided with a radial protrusion (106) used for abutting against the knob seat (200), and the distance between the radial protrusion (106) and the knob seat (200) is equal to the distance between a pressing column (803) of the switch key (801) and the PCB (800).

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