CN214672334U

CN214672334U - Knob switch structure and tooth flushing device

Info

Publication number: CN214672334U
Application number: CN202120789866.0U
Authority: CN
Inventors: 许国忠
Original assignee: Panasonic Wanbao Home Appliances Electric Iron Guangzhou Co Ltd
Current assignee: Panasonic Wanbao Home Appliances Electric Iron Guangzhou Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-09
Anticipated expiration: 2031-04-16

Abstract

The utility model relates to a knob switch structure and towards tooth ware. The knob switch structure comprises a switch middle cover and a switch assembly; the switch assembly comprises a switch body, a knob and a feedback piece; the switch body is fixed on the inner side of the switch middle cover and comprises a plurality of gears; the knob is positioned on the outer side of the switch middle cover and is rotationally connected with the switch body; the knob can rotate and change the gear of the switch body, so that gear adjustment is realized; the inner side surface of the knob is provided with a plurality of feedback grooves; the feedback piece set up in the lid outside in the switch, just one of them is located to feedback piece activity card the feedback recess the pivoting in-process of lid the feedback piece with the activity block of feedback recess can give the certain feedback of feeling of user to as the suggestion of gear change, operating performance is good, just the feedback recess is for seting up in the lid is inboard, the feedback piece is located in the lid, and the article volume of portion is less, effectively saves space.

Description

Knob switch structure and tooth flushing device

Technical Field

The utility model relates to the technical field of household appliances, in particular to a knob switch structure and a tooth flushing device.

Background

Oral hygiene is a health problem that people pay more and more attention to in contemporary society. After people eat food, food scraps are easy to plug in the oral cavity, particularly in teeth seams, the food scraps cannot be cleaned in time, foreign body feeling and discomfort are caused, and meanwhile bacteria are easy to breed in the oral cavity due to long-term residue of the food scraps, and dental plaque is caused; the long-term accumulation of plaque is subject to calcification and the formation of dental calculus that accumulates at the root of the tooth, compressing and stimulating the periodontal environment, leading to periodontal atrophy.

The tooth flusher is an auxiliary tool for cleaning oral cavity, and can flush teeth and tooth gaps by means of pulse water flow produced under a certain pressure, and can utilize the impact force carried by high-speed water column to clear food scraps stuck in the tooth gaps, and its excellent cleaning effect has been extensively recognized by people. And to the different oral cavity environment of different users, the pressure of the pulse rivers of its adaptation is different, the too big water column of pressure intensity strikes the periodontal environment and can lead to the user uncomfortable, lead to the problem of mucosa hemorrhage even, consequently, current tooth flushing device generally uses rotary switch and combines rheostatic device etc. to adjust the pressure of pulse rivers, set up different pressure gears in order to adapt to different users 'demand, but current rotary switch gear regulation structure mostly does not have the function of operation feedback, or operation feedback structure is bulky, cause the space waste, be unfavorable for tooth flushing device's miniaturization and portable trend, the while operability is also relatively poor, user experience is not good.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a towards tooth ware switch structure, it has simple structure and occupation space advantage less.

A knob switch structure comprises a switch middle cover and a switch assembly;

the switch assembly comprises a switch body, a knob and a feedback piece; the switch body is fixed on the inner side of the switch middle cover and comprises a plurality of gears; the knob comprises a cover body and a connecting shaft, and the cover body is axially and rotatably clamped on the switch middle cover and positioned on the outer side of the switch middle cover; one end of the connecting shaft is fixedly connected with the inner side of the cover body, and the other end of the connecting shaft movably penetrates through the switch middle cover, is rotatably connected with the switch body and can change the gear of the switch body;

the cover body faces the inner side surface of the switch middle cover and is provided with a plurality of feedback grooves, the feedback piece is arranged on the outer side of the switch middle cover, and the feedback piece is movably clamped in one of the feedback grooves.

The knob switch structure provided by the embodiment of the utility model is rotationally connected with the switch body through the connecting shaft of the cover body, and the gear of the switch body is changed by the rotating around the shaft of the cover body, so that the gear adjustment is realized, and different use requirements are met; in addition, the feedback piece is arranged, a plurality of feedback grooves are formed in the inner side of the cover body, the feedback piece is movably clamped in the feedback grooves, the feedback piece and the movable clamping of the feedback grooves can give a certain hand feeling feedback to a user in the process of rotating around a shaft of the cover body, the feedback piece is used as a gear change prompt, the operation performance is good, the feedback grooves are arranged in the inner side of the cover body, the feedback piece is located in the cover body, the size of parts is small, the space is effectively saved, and the device is suitable for the trend of miniaturization and portability of household appliances.

Further, the feedback piece comprises a feedback piece body and an elastic piece; the elastic piece is arranged along the axial direction of the connecting shaft, one end of the elastic piece is arranged on the switch middle cover, and the other end of the elastic piece is fixed with the feedback piece body; when the feedback piece body is not clamped in the feedback groove, the elastic piece is in a compressed state. The feedback groove is movably clamped by the feedback piece body through the elastic acting force of the elastic piece, so that the feedback piece can be prevented from causing overlarge resistance to the rotation of the knob to influence the operation of the knob.

Furthermore, the cover body comprises a bottom plate, a side plate and a limiting part, wherein the side plate is of a cylindrical structure and is fixedly connected with the edge of the bottom plate; the limiting part is annularly arranged on the outer side of the edge of the side plate; a first annular groove and a second annular groove are formed in one side, facing the cover body, of the switch middle cover, and the second annular groove is communicated with the first annular groove; the edge of the side plate movably penetrates through the first annular groove, and the limiting part movably penetrates through the second annular groove. Utilize first annular groove and second annular groove with the curb plate and the cooperation of spacing portion realizes the activity card of lid is established, does not influence the rotatory operation of lid is difficult for droing, and structural stability is good.

Furthermore, the surface of two opposite sides of the limiting part is convexly provided with a limiting convex rib, the side wall of the second annular groove corresponds to the position of the limiting convex rib, a limiting groove is formed in the position of the limiting convex rib, and the limiting convex rib is movably clamped in the limiting groove. Utilize spacing protruding muscle with the cooperation card of spacing groove is established, and is further right the lid carries out spacing fixed, avoids its problem that drops to appear.

Further, spacing portion arch is provided with the spacing muscle of angle, the second annular groove corresponds the bar groove has been seted up along circumference in the spacing muscle position of angle, the bar groove with the annular groove sets up with one heart, and it sets up the angle and is 200 ~ 230. The bar-shaped groove is used for limiting the rotation of the cover body, and the influence on the normal use caused by the switch assembly and the influence on the normal use are avoided after the excessive rotation is avoided while the angle of adjustment is ensured.

Further, the device also comprises a sealing ring; the switch middle cover is provided with a shaft hole in a penetrating way, and the surface of the switch middle cover is provided with an annular bulge which is arranged around the shaft hole; the connecting shaft is movably arranged in the shaft hole in a penetrating mode, and the sealing ring is sleeved on the connecting shaft and is in interference fit with the inner diameter of the annular bulge. The setting of sealing washer can avoid in the use outside rivers to enter into to inner structure from the structure clearance, and then right switch module and other components that paddles appear the problem of wading the short circuit.

Furthermore, the elastic part is a spring, a feedback limiting groove is formed in the surface of the switch middle cover, and a spring clamping column is convexly arranged at the bottom of the limiting groove; the feedback piece body is movably arranged in the feedback limiting groove in a penetrating mode, and a third annular groove matched with the spring in size is formed in the bottom of the feedback piece body; one end of the spring is sleeved on the spring clamping column, and the other end of the spring is movably clamped in the third annular groove. The spring clamping column is matched with the third annular groove to fix the spring, so that the spring is prevented from being displaced due to knob operation of a user.

Furthermore, a feedback limiting groove is formed in the surface of the switch middle cover, the spring clamping column is arranged at the bottom of the feedback limiting groove in a protruding mode, the spring is located in the feedback limiting groove, and the feedback part body penetrates through the feedback limiting groove in a movable mode. The feedback limiting groove can protect the spring, so that the spring is prevented from deforming, and the motion of the feedback piece body can be limited.

Furthermore, the rotary knob sequentially corresponds to a plurality of gears from low to high of the switch assembly along different rotation angles in the same rotation direction; the number of the feedback grooves is at least as same as that of the gears of the switch assembly, and the feedback grooves are uniformly arranged on the inner side surface of the cover body along the circumferential direction so that a user can adjust the gears.

The switch cover is positioned above the switch middle cover and detachably fixed with the switch middle cover; the feedback grooves are uniformly arranged on the inner side of the cover body along the circumferential direction, a circular through hole is formed in the switch cover in a penetrating mode, and the cover body is movably arranged in the circular through hole in a penetrating mode; the edge of the circular through hole is provided with a plurality of gear marks along the circumferential direction, the gear marks correspond to different rotation angles of the knob, and gear information can be visually given to a user through the gear marks.

In addition, the embodiment of the utility model provides a still provide a tooth flushing device, it includes above knob switch structure, it has simple structure's advantage, is convenient for realize miniaturization and portablely.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is an exploded schematic view of a knob switch structure according to embodiment 1 of the present invention;

fig. 2 is a longitudinal sectional view of the knob switch according to embodiment 1 of the present invention;

fig. 3 is a longitudinal sectional view of the knob switch structure according to embodiment 1 of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-3, fig. 1 is an explosion schematic diagram of a rotary switch structure according to embodiment 1 of the present invention, fig. 2 is a longitudinal sectional schematic diagram of a rotary switch structure angle according to embodiment 1 of the present invention, and fig. 3 is a longitudinal sectional schematic diagram of a rotary switch structure angle according to embodiment 1 of the present invention. As shown in the drawings, embodiment 1 of the present invention provides a rotary switch structure, which includes a switch cover 10, a switch middle cover 20, a switch assembly, and a sealing ring 30.

The switch cover 10 is positioned above the switch middle cover 20 and is detachably fixed with the switch middle cover 20; the switch cover 10 is perforated with a circular through hole 11.

The switch assembly includes a switch body 40, a knob, and a feedback member 60. The switch body 40 is fixed inside the switch middle cover 20, and includes a plurality of gears, which can be set according to different devices, for example, in the embodiment, the switch body is applied to the tooth rinsing device, so that different gears correspond to different strengths of the tooth rinsing device. The knob is positioned on the outer side of the switch middle cover 20 and comprises a cover body 51 and a connecting shaft 52, the cover body 51 is movably arranged in the circular through hole 11 in a penetrating way, and the edge of the cover body 51 is movably clamped on the switch middle cover 20; one end of the connecting shaft 52 is fixedly connected with the inner side of the cover body 51, and the other end thereof penetrates through the switch middle cover 20 and is rotatably connected with the switch body 40; the knob is rotatable about the axial direction of the connecting shaft 52 and changes the shift position of the switch body 40.

The cover body 51 is provided with a plurality of feedback grooves 511 along the circumferential direction towards the inner side surface of the switch middle cover 20; the feedback member 60 is disposed outside the switch middle cover 20, and the feedback member 60 is movably engaged with one of the feedback grooves 511.

Specifically, the feedback member 60 includes a feedback member body 61 and an elastic member 62; the elastic element 62 is arranged along the axial direction of the connecting shaft 52, one end of the elastic element is movably arranged on the switch middle cover 20, and the other end of the elastic element is fixedly clamped with the feedback element body 61; the elastic member 62 is in a compressed state, and the feedback member body 61 is movably clamped in one of the feedback grooves 511. The feedback groove is movably clamped by the feedback piece body through the elastic acting force of the elastic piece, so that the feedback piece can be prevented from causing overlarge resistance to the rotation of the knob to influence the operation of the knob.

The cover body 51 comprises a bottom plate 512, a side plate 513 and a limiting part 514, wherein the side plate 513 is of a hollow cylindrical structure and is fixedly connected with the edge of the bottom plate 512; the limiting part 514 is annularly arranged outside the edge of the side plate 513; a first annular groove 21 and a second annular groove 22 are arranged on one side, facing the cover body 51, of the switch middle cover 20, and the second annular groove 22 is communicated with the first annular groove 21; the edge of the side plate 513 movably penetrates through the first annular groove 21, and the limiting portion 514 movably penetrates through the second annular groove 22. The first annular groove 21 and the second annular groove 22 are matched with the side plate 513 and the limiting portion 514, so that the cover body 51 is movably clamped, the cover body 51 is not easy to fall off while the rotation operation of the cover body 51 is not influenced, and the structural stability is good. As an optional implementation manner, in this embodiment, the first annular groove 21 and the second annular groove 22 may be formed by enclosing the switch cover 10 and the switch middle cover 20, and this arrangement can reduce the difficulty of forming the groove on the switch middle cover 20, facilitate processing, and reduce the processing cost.

Further, the surface of the two opposite sides of the limiting portion 514 is convexly provided with a limiting convex rib 516, the side wall of the second annular groove 22 corresponding to the position of the limiting convex rib 516 is provided with a limiting groove (not shown), and the limiting convex rib 516 is movably clamped in the limiting groove. Utilize spacing protruding muscle with the cooperation card of spacing groove is established, and is further right the lid carries out spacing fixed, avoids its problem that drops to appear.

As an optional implementation manner, in this embodiment, the limiting portion 514 is convexly provided with an angle limiting rib 515, the second annular groove 22 is provided with a strip-shaped groove (not shown) along the circumferential direction corresponding to the position of the angle limiting rib 515, the strip-shaped groove and the second annular groove are concentrically arranged, and the arrangement angle is 200 to 230 °. The bar groove is used for limiting the rotation of the cover body 51, and the influence on normal use caused by the switch assembly and the influence on normal use are avoided after the excessive rotation is carried out while the angle of adjustment is ensured.

Specifically, a shaft hole 23 is formed through the switch middle cover 20, an annular protrusion 24 is arranged on the surface of the switch middle cover 20, and the annular protrusion 24 is arranged around the shaft hole 23; the connecting shaft 52 is movably inserted into the shaft hole 23, and the sealing ring 30 is sleeved on the connecting shaft 52 and is in interference fit with the inner diameter of the annular protrusion 24. The arrangement of the sealing ring 30 can avoid that external water flow enters the internal structure from the structure gap in the use process, and then the switch assembly and other interference assemblies have the problem of water-interference short circuit.

As an alternative embodiment, in this embodiment, the elastic member 62 is a spring, and the surface of the cover 20 is convexly provided with a spring engaging post 25 in the switch; the bottom of the feedback piece body 61 is provided with a third annular groove 611 matched with the spring in size, one end of the spring is sleeved on the spring clamping column 25, and the other end of the spring is movably clamped in the third annular groove 611. The spring is fixed by the cooperation of the spring engaging post 25 and the third annular groove 611, so that the spring is prevented from being displaced by the knob operation of the user.

The surface of the switch middle cover 20 is provided with a feedback limiting groove 26, the spring clamping column 25 is convexly arranged at the bottom of the feedback limiting groove 26, the spring is positioned in the feedback limiting groove 26, and the feedback part body 61 is movably arranged in the feedback limiting groove 26 in a penetrating way. The feedback limiting groove 26 can protect the spring from deformation and can limit the movement of the feedback piece body 61.

Further preferably, the top of the feedback piece body 61 is of a hemispherical structure, so that the feedback piece body can conveniently penetrate into the feedback groove 511 or be separated from the feedback groove 511, and the phenomenon that the knob operation of a user generates too much resistance to influence the use experience is avoided.

As an optional implementation manner, in this embodiment, the different rotation angles of the knob along the same rotation direction sequentially correspond to a plurality of gears from low to high of the switch assembly; the number of the feedback grooves 511 is at least the same as the number of the switch assembly gears, and they are uniformly arranged on the inner side surface of the cover body 51 along the circumferential direction, so that the user can adjust the gears. The edge of a circular through hole 11 of the switch cover 10 is provided with a plurality of gear marks 12, and the gear marks 12 correspond to different rotation angles of the knob; the cover body 51 is movably arranged through the circular through hole 11. The setting of the gear indicator 12 enables gear information to be given intuitively to the user.

The knob switch structure in embodiment 1 of the present invention is rotatably connected to the switch body through the connecting shaft of the cover body, the gear of the switch body is changed by the rotation of the cover body around the shaft, and different rotation angles correspond to different gears of the switch body, so that the pressure intensity of the pulse water column generated by the tooth flushing device can be adjusted when the knob switch structure is applied to an electric tooth flushing device, and the knob switch structure is adapted to the requirements of different users; still pass through in addition the setting of feedback piece the lid inboard sets up a plurality of feedback recesses, the feedback body is in the effect of elastic component elastic force is movable the block fit down the feedback recess the pivoting in-process of lid the feedback body with the activity block of feedback recess can give the certain feedback of feeling of user, as the gear change suggestion of the different pressure intensity of user's pulsed water column, the user of being convenient for adjusts it to comfortable intensity, and operating performance is good, just the feedback recess is for offering in the lid is inboard, the feedback body with the elastic component all is located in the lid, and the article volume is less, effectively saves space, adapts to domestic appliance's miniaturization, portable trend.

Example 2

Embodiment 2 of the utility model provides a tooth flushing device, it includes embodiment 1 the knob switch structure, it has simple structure's advantage, is convenient for realize miniaturization and portablely.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A knob switch structure is characterized in that: comprises a switch middle cover and a switch component;

2. The rotary switch structure according to claim 1, wherein: the feedback piece comprises a feedback piece body and an elastic piece; the elastic piece is arranged along the axial direction of the connecting shaft, one end of the elastic piece is arranged on the switch middle cover, and the other end of the elastic piece is fixed with the feedback piece body; when the feedback piece body is not clamped in the feedback groove, the elastic piece is in a compressed state.

3. The rotary switch structure according to claim 1, wherein: the cover body comprises a bottom plate, a side plate and a limiting part, wherein the side plate is of a cylindrical structure and is fixedly connected with the edge of the bottom plate; the limiting part is annularly arranged on the outer side of the edge of the side plate; a first annular groove and a second annular groove are formed in one side, facing the cover body, of the switch middle cover, and the second annular groove is communicated with the first annular groove; the edge of the side plate movably penetrates through the first annular groove, and the limiting part movably penetrates through the second annular groove.

4. The rotary switch structure according to claim 3, wherein: the opposite both sides surface arch of spacing portion is provided with spacing protruding muscle, the lateral wall of second annular groove corresponds spacing protruding muscle position department has seted up the spacing groove, spacing protruding muscle activity card is located the spacing groove.

5. The rotary switch structure according to claim 4, wherein: the protruding angle limiting rib that is provided with of spacing portion, the second annular groove corresponds the bar groove has been seted up along circumference in the spacing muscle position of angle, the bar groove with the annular groove sets up with one heart, and it sets up the angle and is 200 ~ 230.

6. The rotary switch structure according to claim 1, wherein: the sealing ring is also included; the switch middle cover is provided with a shaft hole in a penetrating way, and the surface of the switch middle cover is provided with an annular bulge which is arranged around the shaft hole; the connecting shaft is movably arranged in the shaft hole in a penetrating mode, and the sealing ring is sleeved on the connecting shaft and is in interference fit with the inner diameter of the annular bulge.

7. The rotary switch structure according to claim 2, wherein: the elastic piece is a spring, a feedback limiting groove is formed in the surface of the switch middle cover, and a spring clamping column is arranged at the bottom of the limiting groove in a protruding mode; the feedback piece body is movably arranged in the feedback limiting groove in a penetrating mode, and a third annular groove matched with the spring in size is formed in the bottom of the feedback piece body; one end of the spring is sleeved on the spring clamping column, and the other end of the spring is movably clamped in the third annular groove.

8. The rotary switch structure according to claim 1, wherein: the rotary knob sequentially corresponds to a plurality of gears from low to high of the switch assembly along different rotation angles in the same rotation direction; the number of the feedback grooves is at least as same as that of the gears of the switch assembly, and the feedback grooves are uniformly arranged on the inner side surface of the cover body along the circumferential direction.

9. The rotary switch structure according to claim 8, wherein: the switch cover is positioned above the switch middle cover and is detachably fixed with the switch middle cover; the feedback grooves are uniformly arranged on the inner side of the cover body along the circumferential direction, a circular through hole is formed in the switch cover in a penetrating mode, and the cover body is movably arranged in the circular through hole in a penetrating mode; the edge of the circular through hole is circumferentially provided with a plurality of gear marks which correspond to different rotation angles of the knob.

10. A tooth flusher is characterized in that: comprising a rotary switch structure according to any one of claims 1 to 9.