阅读说明：本技术 防渗防变形防爆键盘 (Anti-seepage anti-deformation explosion-proof keyboard ) 是由 宗林才 郑伟 杨永宾 李旭明 郭小坡 杨士岩 于 2021-09-13 设计创作，主要内容包括：本发明涉及防爆键盘,尤其涉及防渗防变形防爆键盘,包括罩壳,所述罩壳下端开口处设置有盖板,所述罩壳内设置有电路板,所述罩壳上还设置有按键,所述按键与电路板匹配,所述罩壳外设置有表面防渗装置,通过表面防渗装置,能够防止水及粉尘自上表面进入按键与罩壳之间的缝隙,进而起到较好的密封效果,所述罩壳与按键之间设置有按键防渗装置,所述罩壳与盖板之间设置有缝隙防渗装置,能够形成防水阻挡,同时能够提高盖板边缘的抗变形强度,凸楞还可以在安装的过程中形成定位,进而保证盖板与罩壳之间的位置正对,所述盖板下端设置有防渗支撑装置,能够使键盘与平台脱离,进而能够防止水自盖板与罩壳的缝隙进入罩壳内部,达到防渗的目的。(The invention relates to an explosion-proof keyboard, in particular to an anti-seepage, anti-deformation and explosion-proof keyboard, which comprises a housing, wherein a cover plate is arranged at an opening at the lower end of the housing, a circuit board is arranged in the housing, keys are also arranged on the housing and matched with the circuit board, a surface anti-seepage device is arranged outside the housing, water and dust can be prevented from entering gaps between the keys and the housing from the upper surface through the surface anti-seepage device, so that a better sealing effect is achieved, a key anti-seepage device is arranged between the housing and the keys, a gap anti-seepage device is arranged between the housing and the cover plate, so that waterproof blocking can be formed, the anti-deformation strength of the edge of the cover plate can be improved, protruding ridges can be positioned in the installation process, so that the position between the cover plate and the housing is opposite, and an anti-seepage support device is arranged at the lower end of the cover plate, so that the keyboard can be separated from a platform, and then can prevent water from entering the housing from the gap between the cover plate and the housing, thereby achieving the purpose of seepage prevention.)

1. An anti-seepage, anti-deformation and anti-explosion keyboard comprises a housing, a cover plate is arranged at an opening at the lower end of the housing, a circuit board is arranged in the housing, keys are also arranged on the housing and matched with the circuit board, and the anti-seepage keyboard is characterized in that a surface anti-seepage device is arranged outside the housing, a key anti-seepage device is arranged between the housing and the keys, a gap anti-seepage device is arranged between the housing and the cover plate,

the key anti-seepage device comprises an upward bulge arranged on the housing, a downward groove is arranged in the middle of the bulge, and a key mounting opening is formed in the bottom of the groove;

the gap seepage-proofing device comprises an upward convex edge arranged on the cover plate, and the convex edge is arranged along the lower end opening of the housing;

the lower end of the cover plate is provided with an anti-seepage supporting device.

2. The impermeable, deformation-preventing and explosion-proof keyboard according to claim 1, wherein the surface impermeable device comprises an impermeable film layer disposed at the upper end of the cover.

3. The anti-seepage, anti-deformation and anti-explosion keyboard according to claim 1, wherein the housing is made of a stainless steel plate with the thickness of 1.5-2mm or an aluminum alloy plate with the thickness of 2-2.5mm, and the bulges, the grooves and the key mounting openings are formed by compression molding.

4. The anti-seepage, anti-deformation and anti-explosion keyboard according to claim 1, wherein the key comprises a mounting seat, the mounting seat is connected with a downward guide sleeve, a key shaft penetrates through the guide sleeve, a touch plate matched with the circuit board is arranged at the lower end of the key shaft, a press plate is arranged at the upper end of the key shaft and extends to the outside of the mounting seat, a return spring is arranged between the press plate and the mounting seat, and sealant is arranged between the mounting seat and the inner wall of the groove.

5. The anti-seepage, anti-deformation and anti-explosion keyboard according to claim 1, wherein the cover plate is made of a stainless steel plate with the thickness of 1.5-2mm or an aluminum alloy plate with the thickness of 2-2.5mm, the convex edge is formed by compression molding, an installation groove is formed at the lower end of the convex edge, and the anti-seepage supporting device comprises a supporting pad arranged in the installation groove.

6. The anti-seepage, anti-deformation and anti-explosion keyboard according to claim 5, wherein a positioning support is arranged between the circuit board and the cover plate, the positioning support comprises a support pillar arranged on the cover plate, the circuit board is provided with a connecting hole corresponding to the support pillar, and the support pillar is connected with the circuit board through a bolt passing through the connecting hole.

7. The anti-seepage, anti-deformation and anti-explosion keyboard according to claim 1, further comprising a support frame arranged at the end of the housing, wherein the support frame comprises a chuck connected with the housing, the chuck is connected with a base through a connecting rod, and the base is provided with an anti-skid member.

Technical Field

The invention relates to an explosion-proof keyboard, in particular to an anti-seepage anti-deformation explosion-proof keyboard.

Background

The explosion-proof metal keyboard is one of common metal keyboards, the working principle is similar to that of the common metal keyboard, and the explosion-proof metal keyboard is different in structure, the explosion-proof metal keyboard is mainly applied to bank self-help deposit and withdrawal service equipment, telecommunication, tax affairs, self-help billing inquiry machines, self-help service terminals, public information inquiry equipment, automation monitoring, security and protection equipment, industrial PC numerical control platforms, medical detection equipment, self-help payment machines, fixed offshore platforms, petrochemical plants, military control consoles, light textiles, medicine, mines, metallurgy, electric power and other dangerous places with explosive gases and dust, and when the keyboard is expected to be used in a potential explosive environment (air mixture) and the equipment is provided with an ignition source, the explosion-proof metal keyboard is required to be used.

The current explosion-proof metal keyboard mainly includes the housing, housing lower extreme opening part is provided with the apron, be provided with the circuit board in the housing, still be provided with the button on the housing, the button matches with the circuit board, and the housing uses corrosion resistant plate or aluminum alloy plate usually, can form the electromagnetic shield, and itself has better sealing performance, and the blanking shaping, processing have with button matched with opening, because the keyboard is in the environment work environment abominable relatively, and corrosion resistant plate or aluminum alloy plate are general about 2mm, if thickness is too thick, whole weight is heavy, and it is inconvenient to process, at the in-process of using, the opening need with the button between the cooperation very inseparable, just can guarantee good waterproof performance, and warp the back, the button will with the opening between the mutual interference, influence the use, reduce water-proof effects simultaneously.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide the seepage-proof deformation-proof explosion-proof keyboard which is simple in structure and has good seepage-proof and deformation-proof effects.

The invention is realized by the following technical scheme: an anti-seepage, anti-deformation and anti-explosion keyboard comprises a housing, a cover plate is arranged at an opening at the lower end of the housing, a circuit board is arranged in the housing, keys are also arranged on the housing and matched with the circuit board, and the anti-seepage keyboard is characterized in that a surface anti-seepage device is arranged outside the housing, a key anti-seepage device is arranged between the housing and the keys, a gap anti-seepage device is arranged between the housing and the cover plate,

the key anti-seepage device comprises an upward bulge arranged on the housing, a downward groove is arranged in the middle of the bulge, and a key mounting opening is formed in the bottom of the groove;

the gap seepage-proofing device comprises an upward convex edge arranged on the cover plate, and the convex edge is arranged along the lower end opening of the housing;

the lower end of the cover plate is provided with an anti-seepage supporting device.

Further, the surface anti-seepage device comprises an anti-seepage film layer arranged at the upper end of the housing.

Furthermore, the housing is made of a stainless steel plate with the thickness of 1.5-2mm or an aluminum alloy plate with the thickness of 2-2.5mm, and the bulges, the grooves and the key mounting openings are formed by compression molding.

Further, the key comprises a mounting seat, the mounting seat is connected with a downward guide sleeve, a key shaft penetrates through the guide sleeve, a touch panel matched with the circuit board is arranged at the lower end of the key shaft, a pressing plate is arranged at the upper end of the key shaft and extends to the outside of the mounting seat, a reset spring is arranged between the pressing plate and the mounting seat, and sealant is arranged between the mounting seat and the inner wall of the groove.

Further, the apron is made by the stainless steel sheet material that thickness is 1.5-2mm or the aluminum alloy sheet material that thickness is 2-2.5mm, protruding stupefied through compression molding, protruding stupefied lower extreme forms the mounting groove, prevention of seepage strutting arrangement is including setting up the supporting pad in the mounting groove.

Further, be provided with location support piece between circuit board and the apron, location support piece is including setting up the support column on the apron, be provided with the connecting hole corresponding with the support column on the circuit board, through the bolted connection who passes the connecting hole between support column and the circuit board.

Further, the support frame is arranged at the end part of the housing and comprises a chuck connected with the housing, the chuck is connected with a base through a connecting rod, and an anti-skid piece is arranged on the base.

The invention has the beneficial effects that: an anti-seepage anti-deformation explosion-proof keyboard comprises a housing, wherein a cover plate is arranged at the lower end opening of the housing, a circuit board is arranged in the housing, keys are further arranged on the housing and matched with the circuit board, a surface anti-seepage device is arranged outside the housing and can prevent water and dust from entering gaps between the keys and the housing from the upper surface through the surface anti-seepage device, a better sealing effect is further achieved, a key anti-seepage device is arranged between the housing and the keys, a gap anti-seepage device is arranged between the housing and the cover plate, the key anti-seepage device comprises an upward bulge arranged on the housing, a downward groove is arranged in the middle of the bulge, a key mounting opening is arranged at the bottom of the groove, water cannot enter the gaps between the housing and the keys due to the existence of the surface anti-seepage device, even if the surface anti-seepage device is damaged, or water is gathered on the surface of the housing, a plateau can be formed through the bulge to isolate the water, the bulge can improve the anti-deformation strength of the position, the groove is arranged to provide a space for installing the keys, the integral installation height of the keys is prevented from being too high, the integral anti-deformation strength of the edge of the cover plate can be improved, the integral keyboard is attractive and convenient to use, the gap anti-seepage device comprises an upward convex ridge arranged on the cover plate, the convex ridge is arranged along the lower end opening of the housing and is provided with a convex ridge which can form waterproof blocking, the anti-deformation strength of the edge of the cover plate can be improved, the convex ridge can form positioning in the installation process, the position between the cover plate and the housing is ensured to be right, the lower end of the cover plate is provided with an anti-seepage supporting device which can separate the keyboard from a platform, and water can be prevented from entering the housing from the gap between the cover plate and the housing, the purpose of seepage prevention is achieved.

Drawings

FIG. 1 is a schematic structural view of an impermeable, deformation-preventing and explosion-proof keyboard;

FIG. 2 is a schematic view of the disassembly of the seepage-proofing deformation-preventing explosion-proof keyboard;

FIG. 3 is a cover deployment view;

FIG. 4 is a schematic partial cross-sectional view of the left end of the anti-seepage, anti-deformation and anti-explosion keyboard;

FIG. 5 is a schematic view of a partial cross section of the right end of the anti-seepage, anti-deformation and anti-explosion keyboard;

FIG. 6 is a schematic cross-sectional view of the connection between the key and the housing;

FIG. 7 is a schematic view of the connection of the mounting pin to the key shaft;

FIG. 8 is a schematic view of a support structure;

FIG. 9 is a schematic view of a supporting frame;

FIG. 10 is a schematic view of a base structure;

FIG. 11 is a cross-sectional view of the cleat.

Wherein: 1-keyboard body, 101-impermeable film layer, 102-key identification, 103-touch screen port, 104-cover shell, 105-keyboard mounting port, 106-connecting hole, 107-supporting column, 108-cover plate, 109-circuit board, 110-convex edge, 111-side plate, 112-folded plate, 113-supporting pad, 114-bolt, 115-mounting seat, 116-key shaft, 117-reset spring, 118-pressing plate, 119-touch plate, 120-guide sleeve, 121-bending port, 122-bulge, 123-sealant, 124-mounting pin, 125-boss, 126-copper sleeve, 127-carbon seat, 128-pressing ring and 29-touch screen;

201-clamping head, 202-connecting rod, 203-base, 204-clamping groove, 205-anti-slip piece, 206-magnet groove, 207-extrusion groove, and 208-magnet.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-11, an anti-seepage, anti-deformation and anti-explosion keyboard comprises a keyboard body 1, wherein the keyboard body comprises a housing 104, a cover plate 108 is installed at an opening at the lower end of the housing, specifically, the housing is made of a stainless steel plate with the thickness of 1.5-2mm or an aluminum alloy plate with the thickness of 2-2.5mm, and the cover plate is made of a stainless steel plate with the thickness of 1.5-2mm or an aluminum alloy plate with the thickness of 2-2.5 mm.

The surface anti-seepage device is arranged outside the housing and comprises an anti-seepage film layer 101 arranged at the upper end of the housing, the anti-seepage film layer is made of a PE film, the thickness of the film is 1.5mm, key marks 102 corresponding to keys are printed on the PE film, the PE film extends to a side plate 111 of the housing and is bonded with the housing through adhesive sticker, and the surface anti-seepage device has good anti-seepage performance.

The shell is also provided with keys, a key anti-seepage device is processed between the shell and the keys, specifically, the key anti-seepage device comprises an upward bulge 122 processed on the shell, a downward groove is processed at the middle position of the bulge, the bulge is of a spherical shape, the outer diameter of the lower end of the bulge is 10mm, the inner cavity of the groove is of an inverted frustum shape, the overall height of the bulge is 2mm, the bottom surface of the groove extends into the shell, the lower installation height of the keys can be ensured, the smoothness of the anti-seepage anti-deformation anti-explosion keyboard is ensured, a key installation opening 105 is processed at the bottom of the groove, in the embodiment, the bulge, the groove and the key installation opening are processed through compression molding, the processing is convenient, the overall sealing performance is high, a high platform can be formed through the bulge, water is isolated, the bulge can improve the anti-deformation strength of the position, even if the shell is slightly deformed, the groove is not influenced, The structure of the bulge.

The key comprises a mounting seat 115 which is connected with a downward guide sleeve 120, the mounting seat is made of nylon or copper and has better lubricating property, in the embodiment, the mounting seat is a copper seat, the thermal deformation resistance is strong, the guide sleeve and the mounting seat are integrally formed, a key shaft 116 is arranged in the guide sleeve in a penetrating way, a touch panel 119 matched with a circuit board is arranged at the lower end of the key shaft, a press panel 118 is arranged at the upper end of the key shaft and extends out of the mounting seat, a return spring 117 is arranged between the press panel and the mounting seat, sealant 123 is filled between the mounting seat and the inner wall of a groove, specifically, the key shaft is a stainless steel key shaft, the cross section of the key shaft is oval, the long axis and the short axis of the cross section of the key shaft are respectively 4mm and 2mm, the key shaft and the guide sleeve are in clearance fit, so that the key shaft can stably move along the guide sleeve, meanwhile, the press panel can be prevented from rotating, the press panel is made of a poly (p-dimethyl terephthalate) material, the PBT plastic is characterized in that a slot matched with a key shaft is formed in a press plate, the slot is bonded with the key shaft through epoxy resin glue, a through hole is formed in the lower end of the key shaft for facilitating connection of a touch plate and the key shaft, the diameter of the hole is 1.5mm, an installation pin 124 is arranged through the through hole in a penetrating mode, the through hole is two for ensuring connection stability, the two through holes are different in height, the installation pin is a U-shaped pin, the U-shaped pin is made of spring steel and is high in strength, the touch plate is made of PE, the end portion of the U-shaped pin penetrates through the touch plate and is bent after passing through the through hole, and connection is convenient.

Install circuit board 109 in the housing, the circuit board is the PCB board, the welding has the contact corresponding with the touch panel on the PCB board, in this embodiment, still include mouse part, mouse part is including installing touch-sensitive screen 129 on the PCB board, and install the mouse key contact on the PCB board, the button includes the mouse key corresponding with mouse key contact, all process touch-sensitive screen mouth 103 corresponding with the touch-sensitive screen on the housing and on the prevention of seepage rete, make the touch-sensitive screen expose, and then can operate, the housing is located touch-sensitive screen mouth department and upwards buckles, and then form bending mouth 121, can effectually block water, the prevention of seepage rete extends to bending mouth edge, still the cover is equipped with clamping ring 128 in the touch-sensitive screen upper end, the prevention of seepage rete passes through the clamping ring and is fixed with the touch-sensitive screen.

A gap anti-seepage device is arranged between a cover shell and a cover plate, the gap anti-seepage device comprises an upward convex edge 110 processed on the cover plate, the convex edge is distributed along an opening at the lower end of the cover shell, an anti-seepage supporting device is arranged at the lower end of the cover plate, specifically, the convex edge forms a mounting groove by compression molding, the anti-seepage supporting device comprises a supporting pad 113 inserted in the mounting groove, the supporting pad is a rubber pad, after the supporting pad is inserted in the mounting groove, the supporting pad can be prevented from being separated by the elasticity of the supporting pad, and has better anti-skid and waterproof performances, the convex edge can form waterproof blocking, and simultaneously can improve the deformation resistance strength of the edge of the cover plate, the convex edge can also form positioning in the mounting process, so as to ensure that the position between the cover plate and the cover shell is right, specifically, the lower end of a side plate of the cover plate is inwards bent to form a folded plate 112, the inner end of the folded plate is matched with the convex edge, so as to position the cover plate, after positioning, the cover plate is connected with the folded plate through the copper drum bolts, so that the mounting is convenient, and the waterproof and anti-seepage performance is good.

Under the circumstances that the apron was fixed a position, install location support piece between circuit board and the apron, location support piece is including installing support column 107 on the apron, it has the connecting hole 106 corresponding with the support column to reserve on the circuit board, be connected through the bolt 114 that passes the connecting hole between support column and the circuit board, it is specific, the mould pressing from both sides is formed with ascending boss 125 on the apron, boss lower extreme installation rubber block, and then support boss department, the support column is installed to the boss upper end, support column lower extreme suit is on the boss, the support column includes carbon seat 127, the carbon seat is the activated carbon seat, inlay copper sheathing 126 in the carbon seat, processing and bolt matched with screw thread in the copper sheathing, the activated carbon has better adsorptivity, can dehumidify.

The anti-seepage anti-deformation anti-explosion keyboard provided by the embodiment is designed according to the intrinsic safety type anti-explosion standard and the standard of mining type (type I) and factory type (type II C), and further can be widely applied to various occasions.

The anti-slip keyboard comprises a keyboard body and is characterized by further comprising a supporting frame arranged at the end part of the housing, the supporting frame comprises a chuck 201 connected with the housing, the cross section of the chuck is U-shaped, an opening of the chuck points to the keyboard body, when the anti-slip keyboard is used, the chuck can be directly clamped at the edge of the keyboard body, the keyboard body can be prevented from being separated from the supporting frame through an anti-seepage film layer and the elasticity of a supporting pad, the chuck is connected with a base 203 through a connecting rod 202, an anti-slip part is arranged on the base, specifically, the base is made of channel steel, the opening faces downwards, the end part is sealed through an end plate to form a clamping groove 204, an anti-slip part 205 is clamped in the clamping groove, a magnet groove 206 used for installing a magnet is processed on the rubber strip, the opening of the magnet groove faces to the side wall of the rubber strip, a magnet 208 is arranged in the magnet groove, an extrusion groove 207 is further processed on the rubber strip, the extrusion groove is a through hole penetrating through the rubber strip, after the rubber strip is placed in the clamping groove, glass beads are pressed in the tooth groove, the external diameter of glass pearl is greater than the external diameter of extrusion groove, and then compresses tightly between messenger's rubber strip and draw-in groove, the magnet, places and breaks away from, and easy to assemble through the support frame, can make the keyboard body have higher height apart from the platform, can also place at the switch board lateral part through the mode of side-draught, water proof and then prevention of seepage.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.