CN218182091U

CN218182091U - Button cap, button structure and floor cleaning machine

Info

Publication number: CN218182091U
Application number: CN202222535950.7U
Authority: CN
Inventors: 陈小平; 许志涛
Original assignee: Guangdong Lizi Technology Co Ltd
Current assignee: Guangdong Lizi Technology Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-12-30
Anticipated expiration: 2032-09-23

Abstract

The utility model provides a key cap, which comprises an elastic cap body; press the post, set up in the elasticity cap to and elasticity reset piece, set up in press the post, and the butt extremely elasticity cap inner wall. This elasticity that sets up according to the key cap resets can increase the ability of reseing after the elasticity cap body elastic deformation, can prevent simultaneously according to the too big deformation volume of key cap lateral wall production in deformation process. The utility model also provides a button structure and floor cleaning machine, including casing and foretell button cap, wherein: the button cap is arranged on the shell, and the button post can extend into the shell; a circuit board is arranged in the shell, and contacts corresponding to the pressing columns are arranged on the circuit board; the elastic resetting piece is abutted to the shell. The key cap of the key structure has good resetting capability in the using process, and can keep good sealing performance with the shell, so that external impurities can be effectively prevented from entering the shell.

Description

Button cap, button structure and floor cleaning machine

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a press key cap, button structure and floor cleaning machine.

Background

The button or the key switch is widely applied, the key cap of the existing key is mostly made of elastic materials, such as elastic silica gel and the like, the elastic deformation capability of the existing key is utilized to enable the key to be capable of being pressed and deformed to realize the pressing connection of the contact switch, and the key can recover the original form to realize the disconnection of the contact switch after the external force is removed. However, the elasticity of the key cap deteriorates after a long-term use, and the reset capability is lowered, resulting in a reduction in the key sensitivity; meanwhile, the key cap is clamped in the groove-shaped structure, the outer wall of the key cap is attached to the groove wall, the gap between the key cap and the groove wall is enlarged in the pressing deformation process, and the sealing effect is poor.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model discloses a first aim at provides a key cap, its simple structure, the reset capability after the elastic deformation is strong.

A second object of the present invention is to provide a key structure, which has a good sealing performance between the key cap and the housing, and can prevent impurities from entering the housing.

A third object of the present invention is to provide a floor washing machine, which has sensitive buttons and is convenient to use.

The embodiment of the utility model discloses a realize through following technical scheme:

a keycap, comprising: an elastic cap body; press the post, set up in the elasticity cap to and elasticity reset piece, set up in press the post, and the butt extremely elasticity cap inner wall. When a user applies acting force to the closed end of the elastic cap body, one end of the elastic resetting piece close to the pressing column moves downwards along with the pressing column, and the elastic resetting piece deforms to store energy; elasticity resets the one end that the piece is close to elasticity cap inner wall and is obstructed in vertical direction, and this in-process, elasticity resets the one end that the piece is close to cap inner wall and provides the resistance from inside to outside for the elasticity cap body along the radial of the elasticity cap body to can reduce the deformation degree that elasticity cap side wall draws close along radial inside to a certain extent, and then can guarantee elasticity cap outer wall and rather than the leakproofness between the trough-shaped structure inner wall of assembly, reduce the possibility that impurity got into the clearance between the two. After the user gets rid of the effort that applies to elastic cap body blind end, the elastic cap body resumes initial condition under its self and elasticity piece that resets, and the in-process is according to post upward movement, relieves the pressure to the contact, and the elastic cap body cooperates the elasticity piece that resets and makes this key cap have good reset ability, and the work sensitivity is high.

According to a preferred embodiment, the top of the elastic cap body is provided with an arc-shaped concave surface. The arc concave surface arranged here is convenient for a user to operate, and is simultaneously beneficial to the deformation of the elastic cap body in the process of being pressed down.

According to a preferred embodiment, the arc concave surface is provided with an annular groove, and the annular groove is positioned on the outer periphery side of the pressing column. The annular groove is beneficial to improving the deformation capacity of the closed end of the elastic cap body in the area inside the annular groove.

According to a preferred embodiment, the lower end of the elastic cap body is provided with an extension protrusion, the extension protrusion is provided with a retaining block, the retaining block is provided with a retaining surface and a guide surface which are oppositely arranged, wherein: the backstop surface is arranged close to one side of the elastic cap body; the guide surface is disposed obliquely toward the free end of the extension projection. The guide surface that sets up on the stopping piece here is favorable to extending bellied assembly, and the stopping face is convenient for carry on spacing fixedly to the elasticity cap body after the assembly.

According to a preferred embodiment, the plurality of extending protrusions are evenly distributed at intervals along the circumference of the elastic cap body.

According to a preferred embodiment, the elastic return member comprises a connecting portion and an elastic abutment portion, wherein: the connecting part is sleeved outside the pressing column, and the elastic abutting part is attached to the inner wall of the elastic cap body.

A key structure comprises a shell and the key cap, wherein: the button cap is arranged on the shell, and the button post can extend into the shell; a circuit board is arranged in the shell, and contacts corresponding to the pressing columns are arranged on the circuit board; the elastic resetting piece is abutted to the shell. The key structure has good sealing performance and strong resetting capability after elastic deformation.

According to a preferred embodiment, the housing comprises an upper shell and a lower shell which are snap-fitted to each other; the elastic reset piece is arranged in the mounting groove, and the elastic reset piece is abutted to the bottom of the mounting groove; under the action of external force, the pressing column can penetrate through the through hole to abut against the contact, and meanwhile, the elastic resetting piece is compressed; when the external force is removed, the elastic resetting piece can act on the pressing column to enable the pressing column to be separated from the contact.

According to a preferred embodiment, the bottom of the mounting groove is provided with a clamping hole matched with the extending protrusion; when the elasticity cap body set up in when in the mounting groove, extend protruding wear to locate in the card hole, just the stopping face is in the bottom outside of mounting groove, elasticity resets and is in the bottom inboard of mounting groove.

The utility model provides a floor washing machine, includes water tank assembly, brush portion and handle at least, the handle includes extension tube and foretell button structure, wherein: the water tank assembly is arranged on the rolling brush part, and the handle is arranged on the water tank assembly; the circuit board is electrically connected to the roll brush part. The button structure that this floor cleaning machine set up, its elasticity cap body have good reset ability, and can rather than keep good leakproofness between the matched with trough-shaped structure inner wall, can effectively prevent that impurity from getting into in the casing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic view of a first explosion structure of a key structure according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the structure of FIG. 1 at A;

fig. 3 is a schematic diagram of a second explosion structure of the key structure according to the embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of the structure shown at B in FIG. 3;

fig. 5 is a schematic view of an assembly structure of the key cap and the upper case according to an embodiment of the present invention;

fig. 6 is a schematic view of a three-dimensional structure of a floor washing machine provided by the embodiment of the present invention.

Icon: 1. an upper shell; 11. mounting grooves; 111. a through hole; 112. a clamping hole; 12. an elastic cap body; 121. an annular groove; 122. an arc-shaped concave surface; 123. an extension projection; 124. a backstop block; 1241. a stopping surface; 1242. a guide surface; 125. an elastic restoring member; 1251. a connecting portion; 1252. an elastic abutting portion; 126. pressing the column; 2. a lower case; 21. a hand block; 3. a circuit board; 31. a contact point; 4. an extension pipe; i, a handle; II, a water tank assembly; III, rolling the brush part.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments 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", "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 only for convenience of description and simplification of the 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 6, a key cap includes an elastic cap body 12, a pressing column 126 and an elastic restoring member 125, wherein: the pressing column 126 is arranged in the elastic cap body 12; the elastic restoring member 125 is disposed on the pressing column 126 and abuts against the inner wall of the elastic cap 12. As shown in fig. 2, 3 and 5, the elastic cap body 12 has a cylindrical structure with an open end, is made of elastic silicone, and can be elastically deformed when being pressed. The pressing column 126 is a key cap urging structure for displacing, when pressed, the pressing column to abut against the contact 31 to be controlled and apply pressure to the contact 31. The elastic restoring member 125 is fixedly connected to the pressing column 126 and can move along with the pressing column 126. When the elastic cap is used, a user applies acting force to the closed end of the elastic cap body 12, the pressing column 126 moves downwards while the elastic cap body 12 is elastically deformed, the elastic resetting piece 125 moves downwards along with the pressing column 126 in the process, in addition, one end, close to the pressing column 126, of the elastic resetting piece 125 moves downwards along with the pressing column 126 in the process, and the elastic resetting piece 125 deforms to store energy; the one end that elasticity resets piece 125 and is close to the elastic cap body 12 inner wall is obstructed in vertical direction, at the deformation in-process of the elastic cap body 12, the one end that elasticity resets piece 125 and is close to the cap body inner wall provides the resistance from inside to outside for the elastic cap body 12 along the radial of the elastic cap body 12 (when the user pressed the elastic cap body 12, the blind end of the elastic cap body 12 moved downwards, and the lateral wall atress of the elastic cap body 12 warp, and draw close at the radial inside of the elastic cap body 12), thereby can reduce the deformation degree that the lateral wall of the elastic cap body 12 drawn close along radial inside to a certain extent, and then can guarantee the leakproofness between the outer wall of the elastic cap body 12 and the slot-shaped structure inner wall rather than the assembly, reduce the possibility that impurity gets into the clearance between the two. When the user removes the acting force applied to the closed end of the elastic cap 12, the elastic cap 12 recovers to the initial state under the action of itself and the elastic restoring member 125, the pressing column 126 moves upward in the process, the pressure on the contact 31 is released, and the elastic cap 12 cooperates with the elastic restoring member 125 to enable the key cap to have good restoring capability and high working sensitivity.

Specifically, as shown in fig. 5, the elastic restoring member 125 includes a connecting portion 1251 and an elastic abutting portion 1252, wherein: the connecting portion 1251 is sleeved outside the pressing column 126, and the elastic abutting portion 1252 is attached to the inner wall of the elastic cap body 12. In this embodiment, the connecting portion 1251 has a disk shape and is provided coaxially with the pressing column 126. The elastic abutment portion 1252 is provided around the outer periphery of the pressing post 126, and is fixedly connected to the lower surface of the connecting portion 1251. In this embodiment, the connecting portion 1251 and the elastic abutting portion 1252 are integrally formed and made of elastic silicone.

Further, an arc-shaped concave surface 122 is provided on the top of the elastic cap body 12. The arc-shaped concave surface 122 accords with the ergonomic design, so that the comfort level of a user during use can be improved; and the configuration of the curved concave surface 122 is designed such that in use, i.e., when a user presses down on the closed end of the elastic cap 12, elastic deformation of the elastic cap 12 is more likely to occur, which results in downward movement of the pressing post 126.

Further, as shown in fig. 2 and 5, the arc-shaped concave surface 122 is provided with an annular groove 121, and the annular groove 121 is located on the outer peripheral side of the pressing column 126. The annular groove 121 here advantageously improves the ability of the closed end of the resilient cap body 12 to deform in the area inside the annular groove 121, i.e. the user is able to have a greater downward stroke of the pressing stud 126 when applying pressure to the area defined by the contour of the annular groove 121.

The embodiment also provides a key structure, including casing and foretell key cap, wherein: the key cap is arranged on the shell, and the pressing column 126 can extend into the shell; a circuit board 3 is arranged in the shell, and a contact 31 corresponding to the pressing column 126 is arranged on the circuit board 3; the elastic return member 125 abuts to the housing. When the elastic cap body 12 is pressed by a user, the pressing column 126 extends into the shell and presses the contact 31 to complete the connection of a circuit controlled by the contact 31 corresponding to the circuit board 3, and in the process, the shell limits the elastic resetting piece 125, so that the elastic resetting piece generates elastic deformation in the movement process of the pressing column 126 and provides an inward and outward supporting effect on the inner wall of the elastic cap body 12 in the radial direction of the elastic cap body 12, and the deformation amount of the side wall of the elastic cap body 12 in the radial direction is reduced in the pressing process of the elastic cap body 12. When the user removes the force applied to the elastic cap 12, the elastic cap 12 is reset by itself and the elastic reset member 125, so that the pressing column 126 is separated from the contact 31 to realize a complete pressing action of the contact 31.

Further, in this embodiment, as shown in fig. 2, the lower end of the elastic cap body 12 is provided with an extending protrusion 123, the extending protrusion 123 is provided with a retaining block 124, the retaining block 124 is provided with a retaining surface 1241 and a guiding surface 1242, wherein: the backstop face 1241 is provided near one side of the elastic cap body 12; the guide face 1242 is obliquely provided toward the free end of the extension protrusion 123. In this embodiment, the retaining block 124 is used to fix the elastic cap 12.

Further, the case includes an upper case 1 and a lower case 2 which are fastened to each other; the outer wall of the upper shell 1 is provided with a mounting groove 11, the bottom of the mounting groove 11 is provided with a through hole 111 in a penetrating manner, the elastic cap body 12 is arranged in the mounting groove 11, and the elastic resetting piece 125 is abutted to the bottom of the mounting groove 11; under the action of external force, the pressing column 126 can pass through the through hole 111 to be abutted to the contact 31, and meanwhile, the elastic resetting piece 125 is compressed; when the external force is removed, the elastic restoring member 125 can act on the pressing column 126 to make it separate from the contact 31. In this embodiment, be provided with the draw-in groove on the epitheca 1, it is protruding with draw-in groove complex card to be provided with on inferior valve 2, when epitheca 1 and inferior valve 2 lock, block protruding joint to the draw-in groove in to form the fixed mounting of epitheca 1 and inferior valve 2, buckle and draw-in groove complex structural design are convenient for the separation of epitheca 1 and inferior valve 2 simultaneously.

As shown in fig. 2, 4 and 5, the bottom of the mounting groove 11 is provided with a fastening hole 112 adapted to the extending protrusion 123; when the elastic cap body 12 is disposed in the mounting groove 11, the extending protrusion 123 passes through the fastening hole 112, the stopping surface 1241 is located at the outer side of the bottom of the mounting groove 11, and the elastic restoring member 125 is located at the inner side of the bottom of the mounting groove 11. In this embodiment, the plurality of extending protrusions 123 are uniformly distributed along the circumference of the elastic cap body 12 at intervals. Accordingly, the bottom of the mounting groove 11 is provided with a plurality of fastening holes 112 corresponding to the plurality of extending protrusions 123 one to one. When in use, the extending protrusion 123 is correspondingly inserted into the fastening hole 112 to achieve the fixed installation of the elastic cap body 12 in the installation groove 11. Specifically, the guiding surface 1242 is an inclined surface, and the stopping surface 1241 is engaged to make the small end of the stopping block 124 be away from the closed end of the elastic cap body 12, so as to facilitate the insertion of the extending protrusion 123 into the fastening hole 112; when the retaining block 124 completely passes through the card hole 112, the retaining surface 1241 abuts against the lower end surface of the card hole 112, the position of the retaining surface 1241 at this time is the large end of the retaining block 124, and the width of the partial structure and the extension protrusion 123 is greater than the width of the card hole 112, so that when the retaining surface 1241 abuts against the lower end surface of the card hole 112, the retaining surface 1241 cooperates with the lower end surface of the card hole 112 to limit the elastic cap 12 in the first vertical direction (vertical upward direction). At this time, the lower end of the elastic restoring element 125 abuts against the upper end surface of the through hole 111, i.e., the upper end surface of the fastening hole 112, so as to limit the elastic cap body 12 in the second vertical direction (vertical downward direction).

Preferably, in the present embodiment, the number of the extending protrusions 123 and the card holes 112 is four.

As shown in fig. 6, the present embodiment further provides a floor washing machine, which at least comprises a water tank assembly ii, a rolling brush portion iii and a handle i, wherein the handle i comprises an extension pipe 4 and the above-mentioned key structure, wherein: the water tank assembly II is arranged on the rolling brush part III, and the handle I is arranged on the water tank assembly II; the circuit board 3 is electrically connected to the roller brush section iii. In this embodiment, the shell is connected to the extension pipe 4, and extension pipe 4 is installed to water tank assembly II, and brush portion III is installed to II lower extremes of water tank assembly, and the user grips handle I when using, specifically is the casing part in order to control floor cleaning machine, realizes the control to contact 31 on the circuit board 3 through pressing down elastic cap body 12, and then realizes the control to floor cleaning machine. According to the key structure arranged on the floor washing machine, the elastic cap body 12 has good resetting capability, and can keep good sealing performance with the inner wall of the groove-shaped structure matched with the elastic cap body, so that impurities can be effectively prevented from entering the shell.

In this embodiment, the outer wall of the lower case 2 is provided with the hand-blocking block 21, which is convenient for a user to hold and can prevent the handle I from slipping accidentally.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. A key cap, comprising:

an elastic cap body;

a press post arranged in the elastic cap body, an

The elastic resetting piece is arranged on the pressing column and is abutted to the inner wall of the elastic cap body.

2. The key cap of claim 1, wherein the top of the elastic cap body is provided with an arc-shaped concave surface.

3. The key cap according to claim 2, wherein an annular groove is provided on the arc-shaped concave surface, the annular groove being on an outer peripheral side of the push post.

4. The key cap according to any one of claims 1 to 3, wherein the lower end of the elastic cap body is provided with an extension protrusion, the extension protrusion is provided with a retaining block, the retaining block is provided with a retaining surface and a guiding surface which are oppositely arranged, and wherein:

the backstop surface is arranged close to one side of the elastic cap body;

the guide surface is disposed obliquely toward the free end of the extension projection.

5. The key cap of claim 4, wherein the plurality of extending protrusions are evenly distributed along the circumference of the elastic cap body at intervals.

6. The key cap of claim 1, wherein the elastic reset member comprises a connecting portion and an elastic abutting portion, wherein:

the connecting part is sleeved outside the pressing column, and the elastic abutting part is attached to the inner wall of the elastic cap body.

7. A key structure comprising a case and a key cap as claimed in claim 4 or 5, wherein:

the button cap is arranged on the shell, and the button column can extend into the shell;

a circuit board is arranged in the shell, and contacts corresponding to the pressing columns are arranged on the circuit board;

the elastic resetting piece is abutted to the shell.

8. The key structure according to claim 7, wherein the housing includes an upper case and a lower case that are snap-fitted to each other;

the elastic reset piece is arranged in the mounting groove, and the elastic reset piece is abutted to the bottom of the mounting groove;

under the action of external force, the pressing column can penetrate through the through hole to abut against the contact, and meanwhile, the elastic resetting piece is compressed; when the external force is removed, the elastic resetting piece can act on the pressing column to enable the pressing column to be separated from the contact.

9. The key structure according to claim 8, wherein the mounting groove bottom is provided with a catching hole adapted to the extending projection;

when the elasticity cap body set up in when in the mounting groove, extend protruding wear to locate in the card hole, just the stopping face is in the bottom outside of mounting groove, elasticity resets and is in the bottom inboard of mounting groove.

10. A floor washing machine comprising at least a tank assembly, a scrubber and a handle, the handle comprising an extension tube and the button arrangement of any of claims 7-9, wherein:

the water tank assembly is arranged on the rolling brush part, and the handle is arranged on the water tank assembly;

the circuit board is electrically connected to the roll brush part.