CN111324212A - Durable keyboard with self-cleaning function - Google Patents

Abstract

The invention relates to the technical field of keyboards, in particular to a durable keyboard with a self-cleaning function, which comprises a keyboard body, wherein a plurality of keycaps and key positions are arranged on the keyboard body, shells are arranged in the key positions, the shells are provided with openings, the keycaps are protruded with point contact strips, the shells are provided with through holes, and the point contact strips are sleeved with reset springs; a plurality of elastic air bags are also arranged in the shell, the shell is provided with a plurality of air pipes, the other ends of the air pipes are communicated with exhaust holes, and the keycaps are provided with skirt edges; the key cap is provided with the recess, and the recess intussuseption is filled with the spraying paint. 1. Opposite air flows in different directions are formed, so that dust around the key positions to be detected is blown away better; 2. two or more point contact strips are arranged, so that the service life is prolonged; 3. a plurality of exhaust holes are arranged to further improve the self-cleaning effect of the keyboard. 4. Through set up appropriate amount of flexible capillary pole in the trachea, can effectively block that the dust gets into inside the elasticity gasbag or use for a long time and block the trachea from the exterior space through the trachea.

Description

Durable keyboard with self-cleaning function

Technical Field

The invention relates to the technical field of keyboards, in particular to a durable keyboard with a self-cleaning function.

Background

The keyboard is a command and data input device for operating equipment, and with the increasing popularization of computers, portable computers and tablet computers, the keyboard becomes an indispensable input device. Dust, tiny particle in the life are everywhere not, have the clearance around the key cap in the keyboard, use the back for a long time at the keyboard, inside a large amount of dusts can get into the keyboard along with the clearance of button, common is to cover the dust cover on the keyboard, but the feel of keyboard can be influenced to the safety cover, influences typing efficiency, reduces the comfort level. If the protective cover is placed on the keyboard only when the keyboard is not used, the protective cover is easy to dirty and lose.

The dustproof computer keyboard with patent application number 201720848587.0 discloses that an air bag is arranged in a key cap, the air bag is provided with an air outlet pipe protruding out of the side wall of the key cap, but the technology has the following defects: the blast pipe can only blow to bottom one side of key cap, can't clear up the dust of other sides of key cap, and the dead angle area that can not sweep more exists at any rate, and the clearance effect is not good, and the in-service use effect is not good. In addition, the gasbag sets up in the key cap, can cause great resistance when pressing the key cap down because the existence of gasbag leads to the dust still to fall into the clearance between the key cap easily, influences the use smoothness degree of keyboard and can appear the condition of card key, and the dust removal in-service use effect is not good.

Can adopt the glued membrane to keep elasticity from top to bottom in the present keyboard, but long-term back of using, the rubber sleeve is ageing easily, and elasticity lacks for the button can not rebound and reset, lets the unable normal use of keyboard.

On the other hand, because letters or other symbol icons on the key cap of the existing keyboard are all printed on the key cap, the phenomenon of paint falling can occur after the keyboard is used for a long time, and then writing can not be seen clearly, which brings inconvenience to users.

Therefore, a keyboard that overcomes the above-mentioned technical problems is desired.

Disclosure of Invention

The invention aims to provide a durable keyboard with a self-cleaning function, a better dust removal effect and better use experience aiming at the defects in the prior art.

In order to achieve the purpose, the invention adopts the following specific scheme: a durable keyboard with a self-cleaning function comprises a keyboard body, wherein the keyboard body is provided with a plurality of keycaps and key positions for accommodating the keycaps, a shell is arranged in each key position, the top of the shell is provided with an opening for the keycaps to stretch out, the bottoms of the keycaps stretch out to form point contact strips, the bottom of the shell is provided with a through hole for the point contact strips to pass through, the point contact strips are sleeved with reset springs, one ends of the reset springs are connected with the bottoms of the keycaps, and the other ends of the reset springs are connected with the bottom of the shell; the shell is internally provided with at least two elastic air bags, a plurality of first air pipes are arranged in the shell, each elastic air bag is communicated with one end of each first air pipe, the other end of each first air pipe is communicated with a first exhaust hole, the first exhaust holes are formed in the side wall of the shell around the opening, and the keycaps are provided with skirt edges used for pressing the elastic air bags; the keycap upper surface is provided with a groove, the groove is consistent with the icon to be sprayed, and the groove is filled with spraying paint.

Furthermore, the elastic air bag comprises a first positioning part and a second positioning part, the first positioning part is positioned at the bottom of the elastic air bag, an air bag accommodating part is arranged on the bottom of the shell, and the air bag accommodating part is matched with the first positioning part at the bottom of the elastic air bag; the second positioning portion is of a structure which corresponds to the skirt edge and is provided with a positioning groove, the inclination direction of the positioning groove is consistent with the extension direction of the skirt edge of the keycap when the keycap is pressed, and the wall surface of the positioning groove keeps a distance from the two side walls of the skirt edge of the keycap.

Furthermore, each elastic air bag is also communicated with a second air pipe, a second exhaust hole penetrating through the outer surface of the skirt edge is formed in the skirt edge of the key cap, the second air pipe is an elastic hose, one end of the second air pipe is communicated with the elastic air bags, and the other end of the second air pipe is communicated with the second exhaust hole.

Furthermore, flexible capillary rods which are uniformly distributed in the inner space of the first air pipe are arranged around the inner wall of the first air pipe, and flexible capillary rods which are uniformly distributed in the inner space of the second air pipe are arranged around the inner wall of the second air pipe.

Further, still be provided with first air channel between first trachea and the first exhaust hole, first air channel is seted up in the lateral wall of casing, still is provided with the second air channel between second trachea and the second exhaust hole, and first tracheal one end and elasticity gasbag intercommunication, first tracheal other end are through first air channel and first exhaust hole intercommunication, and each first air channel correspondence is provided with the first exhaust hole of a plurality of, the second air channel sets up in the inside of shirt rim, the tracheal one end of second and elasticity gasbag intercommunication, and the tracheal other end of second passes through second air channel and second exhaust hole intercommunication, and every second air channel correspondence is provided with a plurality of second exhaust hole.

Further, casing upper portion is close to the open-ended edge and is equipped with the plectrum that is used for with the surface butt of shirt rim, and the width of plectrum diminishes to the edge that is close to the shirt rim from casing upper portion is close to open-ended edge gradually, and the plectrum sets up to the edge tilt up that is close to the shirt rim from casing upper portion is close to open-ended edge, and movable contact between the surface of plectrum and shirt rim.

Furthermore, the outer surface of the skirt edge is obliquely arranged, the shifting sheet is provided with an elastic piece, one end of the elastic piece is connected with the shifting sheet, and the other end of the elastic piece is connected with the shell; a plurality of first exhaust holes are distributed on the shell close to the top surface of the shifting piece, and the outlet direction of the first exhaust holes is consistent with the inclination direction of the shifting piece.

Furthermore, the bottom of casing is equipped with the orientation frame, the point contact strip can pass the orientation frame with the through-hole, reset spring's one end is connected with the bottom of key cap, and reset spring's the other end is connected with the orientation frame, and the bottom both sides of casing all are equipped with the folding leg, and the folding leg is including being two folding rods that X type cross symmetry rotation set up, and the upper portion of folding leg is connected with the bottom rotation of key cap, and the lower part of folding leg is connected with the bottom rotation of casing.

Furthermore, the keyboard is provided with a plurality of electrostatic fiber filtering membrane rods which are arranged in the gaps among the key positions.

Further, the electrostatic fiber filter membrane pole is located the electrostatic fiber filter membrane on the installation pole including installation pole and cover, and the one end and the keyboard one side of installation pole are rotated and are connected, and the other end of installation pole is equipped with the flexible buckle of plastics, and the flexible buckle of plastics stretches out the keyboard opposite side suddenly, and keyboard opposite side is equipped with the draw-in groove that is used for with the flexible buckle lock joint of plastics.

The invention has the beneficial effects that:

1. according to the invention, the plurality of elastic air bags are arranged corresponding to the skirt edges of the keycaps, when a user presses the keycaps, the elastic air bags blow air to the keycaps in different directions through the first exhaust holes and the second exhaust holes to form opposite air flows, so that dust to be gathered around the key positions can be blown away better and faster, the dust blowing self-cleaning function is achieved, and the dust is prevented from being gathered in the key positions; the elastic air bag is arranged in the shell, the keycap cannot be prevented from descending and resetting, the situation of clamping the shell is avoided, the use hand feeling is improved, the elastic air bag is located at the bottom of the skirt edge, and the elastic air bag also prevents partial dust from entering the elastic air bag to achieve the effect of dust separation.

2. Through set up the location portion that corresponds with casing and shirt rim respectively on the elasticity gasbag to further ensure the position stability of elasticity gasbag, the position of elasticity gasbag produces the skew and influences the normal use and the button effect of keyboard when avoiding long-term the use, does not influence the life of keyboard when guaranteeing to sweep efficiency.

3. A plurality of exhaust holes are respectively formed in the shell and the keycap, so that the self-cleaning effect of the keyboard is further improved. The first exhaust hole sweeps gas from the shell to the keycap direction, and the second exhaust hole sweeps gas from the keycap direction to the shell direction, so that cross sweeping of the sweeping gas is formed, the sweeping space is greatly improved, the sweeping dead angle is reduced, and the self-cleaning effect of the keyboard is more prominent.

4. Through set up appropriate amount of flexible capillary pole in the trachea, can effectively block that the dust gets into inside the elasticity gasbag or use for a long time from the exterior space and block the trachea, further improve the keyboard and clean the life of subassembly.

5. Through set up the recess on the key cap surface, will show that the paint material fills the recess in, and then be difficult to wear and tear the sign very fast along with the increase of live time and fall, prolonged the life of keyboard key cap and improved the use experience effect of keyboard.

6. When the key cap is pressed down, the shifting sheet upwards shovels off the dust on the side wall of the key cap, and the shoveled dust is blown away by matching with the exhaust hole to achieve the self-cleaning effect.

7. Set up the static fibre and filter the membrane pole, utilize static to have the effect of suction to dust, realize adsorbing the function of the dust that is blown away, guarantee clear effect.

According to the invention, through the unique design of the elastic air bag, the exhaust structure, the blowing structure and the dust removal structure, the technical scheme integrally solves the defects of single air bag design in the prior art, and improves the self-dust removal effect of the keyboard and the service life of the keyboard.

Drawings

FIG. 1 is a schematic structural diagram of one of the key caps of the present invention.

FIG. 2 is a cross-sectional view of the key cap of the present invention when it is repositioned.

FIG. 3 is a cross-sectional view of the key cap of the present invention when pressed.

Fig. 4 is a cross-sectional view of the vent channel of the present invention.

Fig. 5 is an enlarged schematic view of a in fig. 3.

Fig. 6 is a schematic diagram of an explosive structure according to the present invention.

Fig. 7 is an exploded view of B of fig. 6.

Fig. 8 is an exploded view of C of fig. 3.

FIG. 9 is a schematic structural diagram of the key cap, folding leg, point contact strip and return spring of the present invention.

Reference numerals

1-a shell; 2-key cap; 3-opening; 4-a folding frame; 5-point contact bar; 6-through holes; 7-a return spring; 8-an elastic air bag; 9-a first air pipe; 10-a first venting aperture; 11-skirt edge; 12-a first vent channel; 13-plectrum; 14-an elastic member; 15-concave position; 16-an orientation frame; 17-electrostatic fiber filtration membrane; 18-mounting a rod; 19-plastic flexible snap; 20-connecting the female head; 21-transverse rotation chuck; 22-flexible capillary rod; 23-a groove; 24-a first positioning portion; 25-a second location portion; 26-an air bag housing portion; 27-a second air duct; 28-second vent; 29-a second vent slot; 30-a circuit board; 31-keyboard body.

Detailed Description

The invention is further described with reference to the following examples.

Referring to fig. 1 to 9, a durable keyboard with a self-cleaning function includes a keyboard body 31, the keyboard body 31 is provided with a plurality of key caps 2 and key positions for accommodating the key caps 2, the key positions are provided with a casing 1, the top of the casing 1 is provided with an opening 3 for the key caps 2 to protrude, the bottom of the key caps 2 protrudes with a point contact strip 5, the bottom of the casing 1 is provided with a through hole 6 for the point contact strip 5 to pass through, the point contact strip 5 is sleeved with a return spring 7, one end of the return spring 7 is connected with the bottom of the key caps 2, and the other end of the return spring 7 is connected with the bottom of the casing 1; the shell 1 is also internally provided with at least two elastic air bags 8, the shell 1 is internally provided with a plurality of first air pipes 9, each elastic air bag 8 is communicated with one end of each first air pipe 9, the other end of each first air pipe 9 is communicated with a first exhaust hole 10, the first exhaust holes 10 are arranged on the side wall of the shell 1 around the opening 3, the keycap 2 is provided with a skirt 11 for pressing the elastic air bags 8, and the skirt 11 is designed as an umbrella-shaped keycap skirt commonly used in the field;

the recess 23 is carved with to the 2 upper surfaces of key cap, the recess 23 keeps unanimous with the icon that will spray, and recess 23 intussuseption is filled with the spraying paint, forms the keyboard character that has the demonstration promptly after paint fills up recess 23, can ensure like this that the character on the key cap is difficult to receive wearing and tearing to fall the ware and lead to the unable recognition of keyboard character, the user's that improves use experience degree. .

Preferably, the shell 1 is a cuboid structure comprising a side wall, a bottom and an opening at the top, the side wall has a thickness, the keycap 2 is arranged in the shell 1, a vertically arranged point contact strip 5 integrally formed with the keycap 2 protrudes from the center of the bottom of the keycap 2, a through hole 6 for the point contact strip 5 to pass through is arranged at the bottom of the shell 1, a reset spring 7 is sleeved on the point contact strip 5, one end of the reset spring 7 is movably connected with the bottom of the keycap 2, and the other end of the reset spring 7 is abutted against or fixedly connected with the bottom of the shell 1;

as a preferred embodiment, the point contact strip 5 is arranged right below the bottom of the keycap 2, the bottom of the shell 1 is provided with through holes 6 through which the point contact strip 5 respectively passes, the point contact strip 5 is sleeved with a return spring 7, one end of the return spring 7 is movably connected with the bottom of the keycap 2, and the other end of the return spring 7 is fixedly connected with the bottom of the shell 1; two elastic air bags 8 are arranged in the shell 1, and the elastic air bags 8 are self-recovery elastic air bags and are arranged in a shell space between the side wall of the shell 1 and the keycap 2; specifically, place an air bag 8 in the space between the lateral wall of every casing 1 and point contact strip 5, and every air bag 8 is under key cap 2 shirt rim 11 to skirt 11 can accurately press elasticity gasbag 8 when pressing the key cap, as preferred, sets up two elasticity gasbags 8, sets up respectively in the left and right sides of point contact strip 5. Further preferably, four elastic airbags 8 are provided at four positions, i.e., front, rear, left, right, and front of the point contact strip 5. The air bag of so design has following advantage owing to its shirt rim direct contact with key cap 2: 1. the key cap further prevents external large-particle dust or sundries from directly entering the bottom of the key cap 2 to influence the normal use of the key cap or prevent the large-particle sundries from entering the bottom of the key cap 2 to influence the normal use of the key cap; 2. according to the structure of the key cap 2 and the arrangement characteristics of the key cap 2, the dust blowing effect on the peripheral space of the keyboard is ensured more scientifically and reasonably.

In a preferred embodiment, in a static state that the keycap 2 is not pressed down, a certain distance is kept between the bottom of the skirt edge of the keycap 2 and the elastic airbag 8, and the distance is preferably in a range of 0.5mm-2mm, so as to ensure that the keycap 2 does not receive large resistance in an initial stage of pressing down and the elastic airbag 8 is pressed down with a certain pressing down impact force.

Be equipped with many first trachea 9 in the casing 1, every elasticity gasbag 8 communicates with the one end of first trachea 9, and first trachea 9 passes casing lateral wall and its other end intercommunication has first exhaust hole 10, and first exhaust hole 10 sets up on the casing 1 lateral wall around opening 3. Preferably, the first venting hole 10 is provided in the wall of the side wall of the housing 1 surrounding the key cap around the opening 3, and the key cap 2 is provided with a skirt 11 for pressing the elastic airbag 8, said skirt 11 being an umbrella-shaped key cap skirt design commonly used in the art.

Specifically, when the user presses the key cap 2, the shirt rim 11 of the key cap 2 pushes down the elastic air bag 8, the elastic air bag 8 blows outwards through the first air pipe 9 and the first exhaust hole 10, thereby blowing away dust falling into the periphery of the key cap 2, playing the function of dust blowing self-cleaning, avoiding dust to accumulate the key cap 2, the elastic air bag 8 is arranged in the shell 1, and the descending and resetting actions of the key cap 2 can not be blocked, avoiding the occurrence of the condition of clamping the shell, and improving the use hand feeling. The skirt edge 11 is arranged in a mode of simulating fingertip pressing, so that the force application force to the elastic air bag 8 is increased, the exhaust strength is improved, and the effect of quickly blowing and cleaning dust is achieved.

Referring to fig. 2, when the key cap 2 is released, the key cap 2 is reset upwards by the elastic force of the reset spring 7, and the elastic air bag 8 is not pressed down by the skirt 11, so that the self-shape recovery is realized to prepare for exhausting when being pressed down next time.

Referring to fig. 2 and 3, specifically, a circuit board 30 is disposed in a keyboard body 31, the circuit board 30 is located at a lower portion of a housing 1, the circuit board 30 may be a conventional hard circuit board, a flexible circuit board or a film circuit board, the circuit board 30 is provided with an upper film and a lower film, the films are coated with conductive rubber, a separation film with a hole is disposed between the upper film and the lower film, the separation film is used for separating the films with the conductive rubber, a point contact strip 5 is aligned above the position with the hole of the circuit board 30, when a keycap 2 is pressed down, the point contact strip 5 is pressed down to enable the two films with the conductive rubber to be contacted through the hole to connect a circuit, and a data access function is achieved.

The upper surface of the keycap 2 of the keyboard is provided with the groove 23, the groove 23 is consistent with the icon to be sprayed, and the groove 23 is filled with the sprayed paint, so that the unclear icon of the keyboard caused by long-term friction can be avoided when the keyboard is used, and the service life of the keyboard is prolonged; in addition, when the existing keyboard is in a condition of insufficient light in a use space, a user can clearly see the icons on the keyboard only by turning on the light, which brings inconvenience to the use and shortens the service life of the keyboard, so that the spray paint in the groove 23 contains noctilucent or fluorescent materials.

Referring to fig. 2 and fig. 3, in the present embodiment, the elastic airbag 8 includes a first positioning portion 24 and a second positioning portion 25, the first positioning portion 24 is located at the bottom of the elastic airbag 8, an airbag receiving portion 26 is disposed on the bottom of the housing 1, and the airbag receiving portion 26 is adapted to the first positioning portion 24 at the bottom of the elastic airbag 8 to perform a function of positioning the first positioning portion 24; the second positioning portion 25 is provided with a positioning groove corresponding to the skirt 11, the inclination direction of the positioning groove is consistent with the extending direction of the skirt 11 of the keycap 2 when pressed, and the wall surface of the positioning groove keeps a gap with two side walls of the skirt 11 of the keycap 2, preferably, the distance is kept between 0.2mm and 0.8 mm. The arrangement is to ensure that the elastic air bag 8 can be stably extruded in the process of pressing the key cap 2, and the key cap 2 can be successfully retracted under the elastic force of the return spring 7. With the arrangement, the stability and the pressing accuracy of the elastic air bag 8 can be further improved, the situation that the use stability of the keycap 2 is influenced by the position deviation generated when the skirt 11 presses the elastic air bag 8 due to long-term use is prevented, and the service life of the keyboard is prolonged.

Referring to fig. 2, 3 and 8, in this embodiment, each elastic air bag 8 is further communicated with one or more second air pipes 27, a second air vent hole 28 penetrating through the outer surface of the skirt 11 is formed in the skirt 11 of the key cap 2, the second air pipe 27 is an elastic hose, one end of the second air pipe 27 is communicated with the elastic air bag 8, and the other end of the second air pipe 27 is communicated with the second air vent hole 28.

Wherein the length of the second air tube 27 ensures that no downward pulling force is generated on the reset key cap 2. Through the arrangement, the second exhaust holes 28 can be matched with the first exhaust holes 10 to blow in multiple outward directions to form airflow disturbance similar to opposite-flushing airflow, so that the blowing of dust falling into different parts in the keyboard by blowing gas in different directions is ensured, and the dust around the key position 2 is blown away better.

Referring to fig. 5, in this embodiment, flexible capillary rods 22 uniformly distributed in the inner space of the first air tube 9 are disposed around the inner wall of the first air tube 9, and the flexible capillary rods 22 are used to block dust in the outer space from entering the elastic air bag 8 through the air vent or blocking the first air tube 9 when the elastic air bag 8 is reset, so as to avoid affecting the self-cleaning function of the keyboard after long-term use. Preferably, the flexible capillary rod 22 is arranged on the inner wall surface of the air pipe 9 of the first air pipe 9 close to the air vent. The flexible capillary rods 22 uniformly distributed in the inner space of the second air pipe 27 are also arranged around the inner wall of the second air pipe 27. The function is similar to that described above and will not be described in detail here.

As a further optimization, a flexible capillary rod 22 may be disposed on the inside of the first exhaust hole 10 and the second exhaust hole 28 to block external dust from the external space to the inside.

Referring to fig. 4 and 8, in the present embodiment, a first vent groove 12 is further disposed between the first air tube 9 and the first vent hole 10, the first vent groove (12) is disposed in the side wall of the housing (1), a second vent groove 29 is further disposed between the second air tube 27 and the second vent hole 28, one end of the first air tube 9 is communicated with the elastic air bag 8, the other end of the first air tube 9 is communicated with the first vent hole 10 through the first vent groove 12, and each first vent groove 12 is correspondingly provided with a plurality of first vent holes 10. The second vent groove 29 is arranged inside the skirt 11, one end of the second air tube 27 is communicated with the elastic air bag 8, the other end of the second air tube 27 is communicated with the second vent holes 28 through the second vent groove 29, and each second vent groove 29 is correspondingly provided with a plurality of second vent holes 28. All add the exhaust hole like this on a plurality of directions in the space of opening 3 between casing 1 and key cap 2, accomplish around the key position a plurality of can carry out gas purging to different directions, a plurality of first exhaust hole 10 evenly distributed are in the space around opening 3, to the surface of a plurality of second exhaust hole 28 distributions at the shirt rim 11 of key cap 2, utilize a first trachea 9 to communicate a plurality of first exhaust hole 10 exhaust, utilize a second trachea 27 to communicate a plurality of second exhaust hole 28 exhaust simultaneously, accomplish the disturbance of the air current of relative direction and sweep, greatly reduced the inside probability of dust entering keyboard has further improved clean effect. The corresponding first and second exhaust holes 10 and 28 may be disposed on other locations of the surface of the housing or keycap where dust may fall, to ensure neatness of the keyboard, for dust swept out of the keyboard surface, for further cleaning by a user by wiping, etc.

Referring to fig. 2, 3 and 5, in this embodiment, a poking piece 13 for movably abutting and contacting with the outer surface of the skirt 11 is disposed at an edge of the upper portion of the housing 1 near the opening 3, a width of the poking piece 13 gradually decreases from the edge of the upper portion of the housing 1 near the opening 3 to the edge near the skirt 11, the poking piece 13 is inclined upward from the edge of the upper portion of the housing 1 near the opening 3 to the edge near the skirt 11, and a width of the poking piece 13 adjacent to the skirt is consistent with a width of the skirt corresponding to the key cap which has not yet pressed down. The shifting piece 13 is an elastic shifting piece to ensure that when the keycap 2 is pressed down, the shifting piece 13 can not generate large resistance to the press-down or reset of the keycap 2 while upwards shoveling or shielding the dust on the outer surface of the skirt 11, and the shoveled dust is blown away by the matched exhaust hole 10 to achieve the self-cleaning effect. Specifically, the shifting piece 13 is made of an elastic material such as a silica gel material, and the shifting piece 13 is movably contacted with the outer surface of the skirt 11; as an alternative embodiment, the shifting piece 13 is an elastic shifting piece and is movably abutted with the keycap 2 in the reset state of the keycap 2, when the keycap 2 is pressed to the bottommost part, a slight interval is kept between the shifting piece 13 and the keycap 2, and the interval is kept between 0.1mm and 1 mm.

Referring to fig. 2, 3 and 5, in the present embodiment, the outer surface of the skirt 11 is disposed obliquely, the pick 13 is provided with an elastic member 14, one end of the elastic member 14 is connected to the pick 13, and the other end of the elastic member 14 is connected to the housing 1; a plurality of first exhaust holes 10 are distributed on the shell 1 close to the top surface of the poking piece 13, and the outlet direction of the first exhaust holes 10 is consistent with the inclined direction of the poking piece 13.

Specifically, the housing 1 is provided with a concave portion 15 for accommodating the elastic member 14 and the pick 13, and the other end of the pick 13 protrudes out of the concave portion 15. The elastic member 14 is a spring. When the key cap 2 pushes down, set up elastic component 14 and guarantee that plectrum 13 hugs closely the surface of shirt rim 11 all the time, seal the clearance between key cap 2 and the opening 3, plectrum 13 can be made by elastic material, make the elasticity plectrum, cooperation casing 1 avoids dust to fall in casing 1, guarantee the dustless effect in casing 1, key cap 2 pushes down the gas of 8 combustion gas of in-process elasticity gasbag and discharges through first exhaust hole 10 simultaneously, in time blow away the dust that falls into, ensure the cleanliness of whole keyboard. As a further optimization, a plurality of first exhaust holes 10 are distributed on the housing 1 near the top surface of the pull piece 13, and the direction is consistent with the inclination direction of the pull piece 13, so as to enhance the blowing strength of dust falling onto the keycap 2.

Referring to fig. 2, 3 and 9, in this embodiment, a directional frame 16 is disposed at the bottom of a housing 1, a point contact strip 5 can pass through the directional frame 16 and a through hole 6, one end of a return spring 7 is connected to the bottom of a key cap 2, the other end of the return spring 7 is connected to the directional frame 16, folding frames 4 are disposed on two sides of the point contact strip 5 at the bottom of the housing 1, when an elastic airbag 8 is disposed on the same side where the folding frame 4 is disposed, the folding frame 4 can be disposed between the point contact strip 5 and the elastic airbag 8, the folding frame 4 includes two folding rods which are disposed in an X-shaped cross rotation manner, the upper portion of the folding frame 4 is rotatably connected to the bottom of the key cap 2, and the lower portion of the folding frame 4 is rotatably connected to the bottom of the. Specifically, the orientation frame 16 is arranged to ensure that the point contact strip 5 acts in a specified direction when descending, so that the point contact strip 5 is prevented from deviating when descending, and the phenomenon of shell clamping is avoided. The setting of folding leg 4 is used for making key cap 2 be the mode of horizontal decline, compares and can only press the intermediate position in current umbrella-type key cap 2 and just can push down smoothly, and folding leg 4 guarantees that the user presses the homoenergetic at which position of key cap 2 and on average to key cap 2 everywhere with the atress for 2 level of key cap descend, avoid appearing the condition of card shell.

Referring to fig. 6 and 7, in the present embodiment, the keyboard is provided with a plurality of electrostatic fiber filtering membrane rods, and the electrostatic fiber filtering membrane rods are disposed in the gaps between the key positions. The electrostatic fiber filter membrane pole is including installing pole 18 and the electrostatic fiber filter membrane 17 of cover on installing pole 18, and the one end and the keyboard of installing pole 18 are rotated and are connected, and the other end of installing pole 18 is equipped with the flexible buckle of plastics 19, and the flexible buckle of plastics 19 stretches out the keyboard suddenly, and the keyboard side is equipped with the draw-in groove that is used for with the flexible buckle of plastics 19 lock joints. When the keyboard is used, the plastic flexible buckle is directly buckled on the keyboard, and when the keyboard is not used, the plastic flexible buckle is pulled out to lift the mounting bar. The electrostatic fiber filtering membrane 17 sleeved on the mounting rod 18 is convenient to replace, the cleaning effect is guaranteed, and the service life is prolonged.

Referring to fig. 7, in the present embodiment, the keyboard is provided with a connection socket 20, the connection socket 20 is rotatably connected with a traverse chuck 21, and the traverse chuck 21 is rotatably connected with one end of the mounting rod 18. The horizontal rotating chuck 21 can rotate the mounting rod 18 to make the surface of the electrostatic fiber filtering membrane 17 which is not fully absorbed with dust upwards, and the absorption function of the electrostatic fiber filtering membrane 17 can be fully utilized.

In this embodiment, the elastic air bag 8 is made of an elastic rubber material. Ensuring the self-restoring elasticity of the elastic bladder 8.

In this embodiment, the electrostatic fiber filter membrane 17 is made of PAN nylon fiber, which is made of the following components: 11-13 parts of polyacrylonitrile and 20 parts of N, N-dimethylformamide, and the preparation method comprises the following steps: and (3) carrying out magnetic stirring at room temperature, dissolving for 3-4h to form a transparent solution, and then carrying out electrostatic spinning, wherein the temperature is controlled to be 50-65 ℃, the humidity is controlled to be 22-24% and the flow rate of the solution is controlled to be 0.5-0.7 mL/h in the spinning process, so that the PAN nano-nylon fiber is prepared. PAN nanny fiber has the effect of blocking adsorption of respiratory dust below 2.5 microns, and can block the dust in the electrostatic fiber filtering membrane rod. The function of cleaning dust is achieved.

As an alternative embodiment, the number of the elastic air bags 8 may be replaced by one, and/or the number of the point contact strips 5 may be replaced by one, on the basis that the keyboard satisfies the technical solutions described in the above embodiments.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. The utility model provides a durable keyboard with self-cleaning function, includes keyboard body (31), is equipped with a plurality of key cap (2) on keyboard body (31) and is used for holding the key position of establishing key cap (2), its characterized in that: a shell (1) is arranged in the key position, an opening (3) for the key cap (2) to protrude out is formed in the top of the shell (1), a point contact strip (5) protrudes from the bottom of the key cap (2), a through hole (6) for the point contact strip (5) to pass through is formed in the bottom of the shell (1), a reset spring (7) is sleeved on the point contact strip (5), one end of the reset spring (7) is connected with the bottom of the key cap (2), and the other end of the reset spring (7) is connected with the bottom of the shell (1);

at least two elastic air bags (8) are further arranged in the shell (1), a plurality of first air pipes (9) are arranged in the shell (1), each elastic air bag (8) is communicated with one end of each first air pipe (9), the other end of each first air pipe (9) is communicated with a first exhaust hole (10), the first exhaust holes (10) are formed in the side wall of the shell (1) around the opening (3), and the keycaps (2) are provided with skirt edges (11) used for pressing the elastic air bags (8);

the upper surface of the keycap (2) is provided with a groove (23), the groove (23) is consistent with the icon to be sprayed, and the groove (23) is filled with spraying paint.

2. The durable keyboard with self-cleaning capability of claim 1, wherein: the elastic air bag (8) comprises a first positioning part (24) and a second positioning part (25), the first positioning part (24) is positioned at the bottom of the elastic air bag (8), an air bag accommodating part (26) is arranged at the bottom of the shell (1), and the air bag accommodating part (26) is matched with the first positioning part (24) at the bottom of the elastic air bag (8); the second positioning part (25) is provided with a positioning groove structure corresponding to the skirt edge (11), the inclined direction of the positioning groove is consistent with the extending direction of the skirt edge (11) of the keycap (2) when pressed, and the wall surface of the positioning groove keeps a distance with two side walls of the skirt edge (11) of the keycap (2).

3. A durable keyboard with self-cleaning function according to any one of claims 1-2, wherein: each elastic air bag (8) is further communicated with a second air pipe (27), a second exhaust hole (28) penetrating through the outer surface of the skirt edge (11) is formed in the skirt edge (11) of the keycap (2), the second air pipe (27) is an elastic hose, one end of the second air pipe (27) is communicated with the elastic air bag (8), and the other end of the second air pipe (27) is communicated with the second exhaust hole (28).

4. A durable keyboard with self-cleaning according to claim 3, wherein: flexible capillary rods (22) which are uniformly distributed in the inner space of the first air pipe (9) are arranged around the inner wall of the first air pipe (9), and flexible capillary rods which are uniformly distributed in the inner space of the second air pipe (27) are arranged around the inner wall of the second air pipe (27).

5. A durable keyboard with self-cleaning according to claim 3, wherein: a first vent groove (12) is arranged between the first air pipe (9) and the first exhaust hole (10), the first vent groove (12) is arranged in the side wall of the shell (1), a second vent groove (29) is arranged between the second air pipe (27) and the second vent hole (28), one end of the first air pipe (9) is communicated with the elastic air bag (8), the other end of the first air pipe (9) is communicated with the first vent hole (10) through the first vent groove (12), each first vent groove (12) is correspondingly provided with a plurality of first vent holes (10), the second vent groove (29) is formed in the skirt edge (11), one end of the second air pipe (27) is communicated with the elastic air bag (8), the other end of the second air pipe (27) is communicated with the second vent holes (28) through the second vent groove (29), and each second vent groove (29) is correspondingly provided with a plurality of second vent holes (28).

6. A durable keyboard with self-cleaning function according to any one of claims 1-5, wherein: the edge that casing (1) upper portion is close to opening (3) is equipped with plectrum (13) that is used for with the surface butt of shirt rim (11), the width of plectrum (13) diminishes gradually from the edge that casing (1) upper portion is close to opening (3) to the edge that is close to shirt rim (11), plectrum (13) set up to the edge tilt up that is close to shirt rim (11) from the edge that casing (1) upper portion is close to opening (3), swing contact between the surface of plectrum (13) and shirt rim (11).

7. The durable keyboard with self-cleaning of claim 6, wherein: the outer surface of the skirt edge (11) is obliquely arranged, an elastic piece (14) is arranged on the shifting sheet (13), one end of the elastic piece (14) is connected with the shifting sheet (13), and the other end of the elastic piece (14) is connected with the shell (1); a plurality of first exhaust holes (10) are distributed on the shell (1) close to the top surface of the shifting piece (13), and the outlet direction of the first exhaust holes (10) is consistent with the inclination direction of the shifting piece (13).

8. The durable keyboard with self-cleaning capability of claim 1, wherein: the bottom of casing (1) is equipped with directional frame (16), point contact strip (5) can pass directional frame (16) with through-hole (6), the one end of reset spring (7) is connected with the bottom of key cap (2), the other end and the directional frame (16) of reset spring (7) are connected, the bottom both sides of casing (1) all are equipped with folding leg (4), folding leg (4) are including being two folding rods that X type cross symmetry rotation set up, the upper portion of folding leg (4) is rotated with the bottom of key cap (2) and is connected, the lower part of folding leg (4) is rotated with the bottom of casing (1) and is connected.

9. The durable keyboard with self-cleaning capability of claim 1, wherein: the keyboard is provided with a plurality of electrostatic fiber filtering membrane rods which are arranged in the gaps among the key positions.

10. The durable keyboard with self-cleaning of claim 9, wherein: the electrostatic fiber filtering membrane rod comprises an installation rod (18) and an electrostatic fiber filtering membrane (17) sleeved on the installation rod (18), one end of the installation rod (18) is rotatably connected with one side of a keyboard, the other end of the installation rod (18) is provided with a plastic flexible buckle (19), the plastic flexible buckle (19) extends out of the other side of the keyboard, and the side face of the other side of the keyboard is provided with a clamping groove used for being buckled with the plastic flexible buckle (19).

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