CN112681472A

CN112681472A - Key structure

Info

Publication number: CN112681472A
Application number: CN202110121074.0A
Authority: CN
Inventors: 郭建华; 罗银虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-04-20
Anticipated expiration: 2041-01-28
Also published as: CN112681472B

Abstract

The invention discloses a key structure, which comprises a key assembly arranged on a cover plate, wherein the key assembly comprises at least one key, a key supporting body with an inner cavity and a key lower cover; the key is arranged in the inner cavity in a way of moving up and down; the bottom of the inner cavity is provided with a drain hole; the lower key cover is sleeved on the outer wall of the key support body from bottom to top and is clamped and fixed on the cover plate together with the key support body; the lower cover of the key is provided with a water inlet end and a water chamber for storing clean water; a water outlet end is arranged on the side wall of the inner cavity of the key supporting body; the water inlet end of the key lower cover and the water outlet end of the key supporting body are communicated with the water chamber. When the press key is pressed, the water outlet end of the press key supporting body is exposed, water in the water chamber overflows from the water outlet end, and the press key is automatically flushed, so that the self-cleaning effect is achieved.

Description

Key structure

Technical Field

The invention relates to a key technology, in particular to a key structure with a self-cleaning function.

Background

In public places or private homes, a user can give an instruction to the water tank through a key to enable the water tank to finish certain water outlet actions, and the flushing cleaning function is realized, for example, a toilet water tank is adopted, so that the key is most frequently contacted with the user in all parts of the water tank. And therefore, the keys are most susceptible to contamination and are also most susceptible to a source of stray contamination.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a key structure with a self-cleaning function.

The purpose of the invention is realized by adopting the following technical scheme: a key structure comprises a key assembly arranged on a cover plate, wherein the key assembly comprises at least one key, a key supporting body with an inner cavity and a key lower cover; the key is arranged in the inner cavity in a way of moving up and down; a drain hole is formed at the bottom of the inner cavity; the lower key cover is sleeved on the outer wall of the key support body from bottom to top and is clamped and fixed on the cover plate together with the key support body; the button is characterized in that a water inlet end and a water chamber for storing clean water are arranged on the button lower cover; a water outlet end is arranged on the side wall of the inner cavity of the key supporting body; the water inlet end of the key lower cover and the water outlet end of the key supporting body are communicated with the water chamber; when the press key is pressed, the water outlet end of the press key supporting body is exposed, and water in the water chamber overflows from the water outlet end to wash the pressed press key.

Furthermore, the key comprises a positioning shaft which is arranged by extending downwards from the bottom surface of the key and is used for positioning the pressing direction of the key so as to ensure that the key is not easy to incline; the inner cavity of the key supporting body is provided with a positioning shaft guide cavity penetrating through the positioning shaft.

Furthermore, a buffer rubber ring is sleeved on the positioning guide shaft and is positioned in the positioning shaft guide cavity; and the bottom of the positioning shaft guide cavity is also provided with an exhaust hole.

Furthermore, the surface of the key is in an oval shape, and a drainage gap is reserved between the edge of the key in the minor axis direction and the side wall of the inner cavity of the key support body.

Furthermore, the horizontal height of the panel at the center of the key is the highest, and the horizontal height of the panel along the edge of the key in the short axis direction is the lowest; the horizontal height of the panel along the edge of the key in the long axis direction is less than that of the panel at the center of the key, but is greater than that of the panel along the edge of the key in the short axis direction.

Furthermore, the keys are two keys which are arranged oppositely and side by side; one side of the key, which is close to the other key side by side, is a drainage notch, and the key positioned in the middle of the drainage notch has the highest horizontal height of a panel and gradually shrinks from the middle of the drainage notch to two sides; the horizontal height of the panel positioned in the middle of the key plate body is smaller than that of the panel positioned in the middle of the water drainage gap, but is larger than that of the panels on two sides of the middle of the water drainage gap.

Furthermore, a rectifying rib which is used for enabling water to uniformly flow to the water outlet end on the inner side wall of the key support body is arranged in the water chamber.

Furthermore, the water outlet ends are uniformly distributed on the inner wall of the key support body.

Furthermore, a supporting panel is arranged on the key supporting body, and the upper surface of the supporting panel is gradually inclined downwards from the outer periphery to the inner periphery.

Furthermore, the contact positions of the key support body, the key lower cover and the cover plate are all provided with sealing rings.

Compared with the prior art, the invention has the beneficial effects that:

(1) present button uses the back at the user, stays the bacterium on hand on the button easily, causes secondary pollution, and this scheme can dash the button automatically when the user uses, reaches the effect of automatically cleaning, and concrete clean process is as follows: when the key is pressed, the water outlet end of the key supporting body is exposed, and cleaning water in the water chamber overflows from the water outlet end and flows to the key to wash and clean the pressed key, so that the self-cleaning effect of the key is achieved.

(2) In addition, this scheme realizes location and buffer function through designing the location axle, and specifically, first function is the locate function, and the up-and-down motion direction of button is fixed a position jointly together with pressing the post, makes the button be difficult for inclining. The second function is a buffer function, which is mainly formed by a buffer rubber ring on the positioning shaft, preferably a V-shaped rubber ring with a V-shaped section, and the opening of the V-shaped rubber ring is arranged upwards. When the full-row keys or the half-row keys are pressed downwards, the V-shaped rubber ring deforms, the opening of the rubber ring shrinks inwards, and the keys are easy to press; when the full-row keys or the half-row keys are loosened, the keys move upwards under the action of the reset spring, at the moment, the V-shaped rubber ring deforms outwards, the reset resistance of the keys is increased, the keys are reset slowly, and the cleaning time is prolonged.

(3) Through add the rectification rib on the hydroecium, the use of cooperation hydroecium makes the even inlet opening that flows to button supporter inside wall of clean water.

(4) In order to wash the button in-process for the discharge of sewage reaches the smooth effect of sluicing, this scheme specific position sets up different panel level on key panel.

(5) The surface of the key support body is provided with an inclined plane with low inside and high outside, so that when water flows more, the water flows to the direction of the key.

(6) The button supporter, button lower cover are equipped with the sealing washer with apron contact department, can make the hydroecium form confined hydroecium, guarantee that the clean water can not take place excessive, keep button dry around.

Drawings

FIG. 1 is a schematic diagram of a key assembly according to a preferred embodiment of the present invention 1;

FIG. 2 is a schematic longitudinal sectional view of a key according to the preferred embodiment 1 of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is a schematic structural diagram of a key supporting body according to the preferred embodiment 1 of the present invention;

FIG. 5 is a schematic view of another angle structure of the key supporting body according to the preferred embodiment 1 of the present invention;

FIG. 6 is a schematic diagram of a full row of keys in accordance with a preferred embodiment of the present invention 1;

FIG. 7 is a schematic view of a key bottom cover according to the preferred embodiment 1 of the present invention;

FIG. 8 is a schematic structural diagram of a key assembly according to the preferred embodiment of the present invention 2;

FIG. 9 is a schematic longitudinal sectional view of a key assembly according to the preferred embodiment 2 of the present invention;

FIG. 10 is an enlarged view of area B of FIG. 9;

FIG. 11 is a schematic structural diagram of a key support according to a preferred embodiment 2 of the present invention;

fig. 12 is a schematic structural diagram of a full row of keys in accordance with a preferred embodiment 2 of the present invention.

In the figure: 100. a key assembly; 1. a key support; 11. a bottom surface of the support body; 12. a support sidewall; 13. an inner cavity; 131. a key cavity; 132. a pressing post guide cavity; 133. positioning the shaft guide cavity; 14. a drain hole; 15. a water outlet end; 16. an exhaust hole; 17. a support panel; 2. pressing a key; 21. a key panel; 22. pressing the column; 23. a limiting hook; 24. positioning the shaft; 3. a key lower cover; 31. a water inlet end; 32. a water chamber; 33. a rectifying rib; 4. a return spring; 5. a buffer rubber ring; 6. a seal ring; 7. pressing and rolling the long column; 8. a limit nut; G. and (7) a cover plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

Example 1

The structure and the using process of the key are explained by taking a case applied to a water tank of a toilet as an example. But the key application scenario of the present solution includes but is not limited to on toilet tank.

As shown in fig. 1 to 7, a key structure includes a key assembly 100 mounted on a cover plate G, the key assembly including a key support 1 having an inner cavity, a key 2, a key lower cover 3;

the inner cavity 13 on the key support body is formed by downwards sinking the middle part of the key support body to form a support body side wall 12 which surrounds the bottom surface 11 of the support body on the periphery of the bottom surface of the support body; the key is arranged in the inner cavity in a way of moving up and down; the bottom surface of the support body is provided with a drain hole 14; a water outlet end 15 is arranged on the side wall of the support body;

the lower key cover 3 is sleeved on the outer side of the side wall of the support body from bottom to top through threaded connection or buckle connection and is clamped and fixed on the cover plate together with the key support body 1; the lower key cover is provided with a water inlet end 31 and a water chamber 32 for storing clean water; the water inlet end of the key lower cover and the water outlet end of the key supporting body are communicated with the water chamber; the water inlet end of the lower cover of the key is externally connected with a water inlet valve to provide clean water for the key.

When the key is pressed, the water outlet end of the key supporting body is exposed, and cleaning water in the water chamber overflows from the water outlet end and flows to the key to wash and clean the pressed key, so that the self-cleaning effect of the key is achieved.

In order to realize the pressing movement of the key, the key 2 comprises a key panel 21, a pressing column 22 which is arranged by extending downwards from the key panel and is used for triggering the switch of a drainage valve in the water tank, and a limiting hook 23 used for preventing the key from separating upwards from the key support body; the key support body is provided with a limit groove which is matched and buckled with the limit hook. The inner cavity of the key support body is provided with a key cavity 131 for installing a key panel and a pressing column guide cavity 132 which is arranged by extending downwards from the key cavity and is used for penetrating a pressing column; the pressing column is sleeved with a reset spring 4 for resetting the key. The drainage valve in the water tank is a conventional drainage valve, and when the button is pressed, the pressing column synchronously moves downwards to trigger or start a drainage valve switch in the water tank, so that the function is realized; after the drainage function is finished, the key is reset through the reset spring.

As a further preferred scheme, the key 2 further comprises a pressing extension column 7 for extending the length of the pressing column, and the pressing column can be fixed at the bottom of the pressing column through a threaded connection or a snap connection. Preferably, a limiting nut 8 can be additionally arranged at the joint of the pressing extension column and the pressing column for locking so as to prevent the extension column from loosening after use.

As a further preferable scheme, the keys further comprise positioning shafts 24 which are arranged by extending downwards from the keys and are used for positioning the pressing direction of the keys so that the keys are not easy to incline; the inner cavity of the key support body is provided with a positioning shaft guide cavity 133 penetrating through the positioning shaft. Preferably, the positioning shaft is further sleeved with a buffer rubber ring 5, and the buffer rubber ring is located in the positioning shaft guide cavity; and the bottom of the positioning shaft guide cavity is also provided with an exhaust hole 16.

The positioning shaft is mainly designed to have two functions, wherein the first function is a positioning function and is used for jointly positioning the up-and-down movement direction of the key together with the pressing column, so that the key is not easy to incline. The second function is a buffer function, which is mainly formed by a buffer rubber ring on the positioning shaft, and a V-shaped rubber ring with a V-shaped cross section is preferably adopted, as shown in fig. 2, the opening of the V-shaped rubber ring is arranged upwards. When the full-row keys or the half-row keys are pressed downwards, the V-shaped rubber ring deforms, the opening of the rubber ring shrinks inwards, and the keys are easy to press; when the full-row keys or the half-row keys are loosened, the keys move upwards under the action of the reset spring, at the moment, the V-shaped rubber ring deforms outwards, the reset resistance of the keys is increased, the keys are reset slowly, and the cleaning time is prolonged.

As a further preferable scheme, in order to achieve a better draining effect, the key panel is in an oval shape, and a draining gap is reserved between the edge of the key in the minor axis direction and the side wall of the inner cavity of the key support. Preferably, a drainage inclined plane for accelerating the drainage of sewage is arranged on the key panel. The water drainage inclined plane has the following characteristics: the horizontal height of the panel at the center of the key panel is the highest, the horizontal height of the panel at the edge of the key in the short axis direction is the lowest, the horizontal height of the panel at the edge of the key in the long axis direction is smaller than the horizontal height of the panel at the center of the key but larger than the horizontal height of the panel at the edge of the key in the short axis direction, and therefore smooth water drainage in the middle of the key panel to the short axis direction is formed. As shown in fig. 6, the center position of the key panel is denoted by a, the edge position of the key in the short axis direction is denoted by b, the edge position of the key in the long axis direction is denoted by c, and the panel horizontal height at each position on the key panel is compared as follows: a > c > b.

As a further preferable scheme, a rectifying rib 33 for enabling water to uniformly flow to the water outlet end on the inner side wall of the key support body is arranged in the water chamber. The design of rectification rib, the use of cooperation hydroecium makes the inlet opening that clean water evenly flows to button support inside wall.

As a further preferred scheme, the water outlet ends are uniformly distributed on the inner wall of the key support body. The water outlet end is uniformly and annularly arranged on the inner wall of the key supporting body, so that clean water can uniformly flow out from the periphery to the central position.

Preferably, the key support is provided with a support panel 17, the support panel is formed by extending the side wall of the support horizontally outwards, and the upper surface of the support panel is gradually inclined downwards from the outer periphery to the inner periphery to form an inclined surface. The inclined surface is arranged to enable water to flow towards the direction of the key when the water flow is more.

As a further preferred scheme, the contact parts of the key support body, the key lower cover and the cover plate are all provided with sealing rings 6. The arrangement of the sealing ring can enable the water chamber to form a closed water chamber, so that clean water is prevented from overflowing, and the periphery of the key is kept dry.

Example 2

Compared with the key of the embodiment 1, the key structure of the embodiment 2 is different in that the number of the keys is two, and the two keys are respectively used for controlling two drainage functions. As shown in fig. 8-12, a key structure includes a key assembly 100 mounted on a cover plate G, the key assembly includes a key support 1 having an inner cavity 13, keys 2 (i.e., full row of keys) for implementing a full drainage function, keys (i.e., half row of keys) for implementing a half drainage function, half row of keys 2, and a key lower cover 3;

the inner cavity 13 on the key support body is formed by downwards sinking the middle part of the key support body to form a support body side wall 12 which surrounds the bottom surface 11 of the support body on the periphery of the bottom surface of the support body; the full-row keys and the half-row keys can be arranged in the inner cavity in a vertically moving manner; the bottom surface of the support body is provided with a drain hole 14; a water outlet end 15 is arranged on the side wall of the support body;

the lower key cover 3 is sleeved on the outer side of the side wall of the support body from bottom to top through threaded connection or buckle connection and is clamped and fixed on the cover plate together with the key support body 1; the lower key cover is provided with a water inlet end 31 and a water chamber 32 for storing clean water; the water inlet end of the key lower cover and the water outlet end of the key supporting body are communicated with the water chamber; the water inlet end of the lower cover of the key is externally connected with a water inlet valve to provide clean water for the key;

when the full-row keys or the half-row keys are pressed, the water outlet ends of the key supporting bodies are exposed, and cleaning water in the water chamber overflows from the water outlet ends and flows to the keys to flush and clean the pressed keys, so that the effect of self-cleaning of the keys is achieved.

As a further preferable scheme, the full-row keys and the half-row keys have basically the same structure, and both include a key panel 21, a pressing column 22, a limiting hook 23, a positioning shaft 24 and the like. Taking a full-row key as an example, explaining the structural composition of the full-row key specifically, in order to realize the pressing motion of the key, the full-row key comprises a key panel 21, a pressing column 22 which is arranged by extending the key panel downwards and is used for triggering the switch of a drainage valve in a water tank, and a limiting hook 23 for preventing the key from separating from a key support upwards; the key support body is provided with a limit groove which is matched and buckled with the limit hook. The inner cavity of the key support body is provided with a key cavity 131 for installing a key panel and a pressing column guide cavity 132 which is arranged by extending downwards from the key cavity and is used for penetrating a pressing column; the pressing column is sleeved with a reset spring 4 for resetting the key. The drain valve in the water tank is a conventional drain valve, and when the full-discharge button is pressed, the pressing column synchronously moves downwards to trigger or start a full-discharge switch of the drain valve in the water tank, so that the full-discharge function is realized; when the half-discharge key is pressed, the pressing column synchronously moves downwards to trigger a half-discharge switch of the water discharge valve in the water tank, so that a half-discharge function is realized.

As a further preferable scheme, the full-row key and the half-row key each further comprise a pressing extension column 7 for extending the length of the pressing column, and the calendering long columns can be fixed at the bottom of the pressing column through threaded connection or snap connection. Preferably, a limiting nut 8 can be additionally arranged at the joint of the pressing extension column and the pressing column for locking so as to prevent the extension column from loosening after use.

As a further preferable scheme, each of the full-row keys and the half-row keys further comprises a positioning shaft 24 which is extended downwards from the key panel and used for positioning the pressing direction of the keys so that the keys are not easy to incline; the inner cavity of the key support body is provided with a positioning shaft guide cavity 133 penetrating through the positioning shaft. Preferably, the positioning shaft is further sleeved with a buffer rubber ring 5, and the buffer rubber ring is located in the positioning shaft guide cavity; and the bottom of the positioning shaft guide cavity is also provided with an exhaust hole 16.

The positioning shaft is mainly designed to have two functions, wherein the first function is a positioning function and is used for jointly positioning the up-and-down movement direction of the key together with the pressing column, so that the key is not easy to incline. The second function is a buffer function, which is mainly formed by a buffer rubber ring on the positioning shaft, and a V-shaped rubber ring with a V-shaped cross section is preferably adopted, as shown in fig. 10, and the opening of the V-shaped rubber ring is arranged upwards. When the full-row keys or the half-row keys are pressed downwards, the V-shaped rubber ring deforms, the opening of the rubber ring shrinks inwards, and the keys are easy to press; when the full-row keys or the half-row keys are loosened, the keys move upwards under the action of the reset spring, at the moment, the V-shaped rubber ring deforms outwards, the reset resistance of the keys is increased, the keys are reset slowly, and the cleaning time is prolonged.

In the scheme, one side of the key panel, which is close to the other key panel side by side, is a water drainage notch, when one key is pressed, clean water flows out from the water outlet end of the key support body, flows into the inner cavity from the water drainage notch between the two key panels after flowing through the key panels, and finally flows into the water tank from the water drainage hole positioned on the bottom surface of the support. It is of course also possible to provide a separate waste water collecting chamber in the water tank for collecting the waste water.

As a further preferable scheme, in order to achieve smooth draining, a draining inclined plane for accelerating draining of sewage is arranged on the key panel. The water drainage inclined plane has the following characteristics: the horizontal height of the panel of the key panel positioned in the middle of the water drainage gap is set to be the highest and gradually reduced from the middle of the water drainage gap to two sides; the horizontal height of the panel positioned in the middle of the key panel body is smaller than that of the panel positioned in the middle of the water drainage gap, but is larger than that of the panels on two sides of the middle of the water drainage gap; that is, as shown in fig. 12, the position of the middle of the drainage notch on the key panel is denoted as "e", the positions of the two sides of the drainage notch on the key panel are denoted as "f", the position of the middle of the plate body on the key panel is denoted as "g", and the horizontal heights of the panel at the respective positions on the key panel are compared as follows: e > g > f.

As a further preferred scheme, the water outlet end preferably adopts water outlet holes, and can also be water outlet grooves, and the water outlet holes or the water outlet grooves are uniformly distributed on the inner wall of the key support body. The water outlet end is uniformly and annularly arranged on the inner wall of the key supporting body, so that clean water can uniformly flow out from the periphery to the central position.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A key structure comprises a key assembly arranged on a cover plate, wherein the key assembly comprises at least one key, a key supporting body with an inner cavity and a key lower cover; the key is arranged in the inner cavity in a way of moving up and down; a drain hole is formed at the bottom of the inner cavity; the lower key cover is sleeved on the outer wall of the key support body from bottom to top and is clamped and fixed on the cover plate together with the key support body; the button is characterized in that a water inlet end and a water chamber for storing clean water are arranged on the button lower cover; a water outlet end is arranged on the side wall of the inner cavity of the key supporting body; the water inlet end of the key lower cover and the water outlet end of the key supporting body are communicated with the water chamber; when the press key is pressed, the water outlet end of the press key supporting body is exposed, and water in the water chamber overflows from the water outlet end to wash the pressed press key.

2. The key structure of claim 1, wherein the key includes a positioning shaft extending downward from a bottom surface of the key for positioning a pressing direction of the key so that the key is not easily tilted; the inner cavity of the key supporting body is provided with a positioning shaft guide cavity penetrating through the positioning shaft.

3. The key structure of claim 2, wherein the positioning guide shaft is sleeved with a buffer rubber ring, and the buffer rubber ring is located in the positioning shaft guide cavity; and the bottom of the positioning shaft guide cavity is also provided with an exhaust hole.

4. The key structure of claim 1 wherein the surface of said key is elliptical and a drainage gap is provided between the edge of the key in the direction of the minor axis and the side wall of the cavity of the key support.

5. The key structure of claim 4, wherein the panel level at the center of the key is highest and the panel level along the edge of the key in the direction of the minor axis is lowest; the horizontal height of the panel along the edge of the key in the long axis direction is less than that of the panel at the center of the key, but is greater than that of the panel along the edge of the key in the short axis direction.

6. The key structure of claim 1, wherein said keys are two keys arranged side-by-side; one side of the key, which is close to the other key side by side, is a drainage notch, and the key positioned in the middle of the drainage notch has the highest horizontal height of a panel and gradually shrinks from the middle of the drainage notch to two sides; the horizontal height of the panel positioned in the middle of the key plate body is smaller than that of the panel positioned in the middle of the water drainage gap, but is larger than that of the panels on two sides of the middle of the water drainage gap.

7. The key structure of any one of claims 1-6, wherein the water chamber is provided with a rectifying rib for making water flow uniformly to the water outlet end on the inner side wall of the key support.

8. The key structure of any one of claims 1-6, wherein the water outlet ends are uniformly arranged on the inner wall of the key support.

9. The key structure of any one of claims 1-6, wherein the key support body is provided with a support panel, and an upper surface of the support panel is gradually inclined downward from an outer periphery to an inner periphery.

10. The key structure of any one of claims 1-6, wherein the key support, the key bottom cover and the cover plate are provided with sealing rings.