CN214505317U - Dustproof light touch switch - Google Patents

Abstract

The utility model discloses a dustproof light-touch switch, which is characterized in that the technical proposal comprises a cover plate, a base, a button, a spring plate and pins, the base is externally provided with a pin, the base is internally provided with a groove, the groove is internally provided with a spring plate, a button is arranged above the spring plate, a cover plate is arranged on the base, a through hole for the button to pass through is arranged on the cover plate, a plastic sheathing plate for fixing the button is arranged between the button and the through hole, the plastic sheathing plate is matched with the through hole and the button in shape, the lower end of the button is provided with an arc-shaped bulge, the arc-shaped bulge is over against the elastic sheet, the arc-shaped bulge is provided with a transverse annular notch, the groove is internally provided with a fixed groove which is level with the lower end of the plastic sleeve plate, the fixed groove is internally fixedly provided with a dustproof rubber film, the rubber film is provided with a round hole corresponding to the annular notch, and the round hole is embedded with the annular notch in shape. The utility model has the characteristics of long service life, dustproof effect is good.

Description

Dustproof light touch switch

Technical Field

The utility model relates to a dab switch field, more specifically says that it involves a dustproof switch that dabs.

Background

The tact switch, also called the key switch, first appeared in japan as: when the sensitive switch is used, the switch is pressed towards the switch operation direction under the condition of meeting the operation force, the switch is closed and switched on, when the pressure is removed, the switch is switched off, and the internal structure of the sensitive switch is switched on and off by the stress change of the metal elastic sheet.

The inventor finds that in the prior art, the dustproof arrangement of some dustproof light-touch switches is basically that a layer of rubber film or rubber mold is arranged between a button and an elastic sheet, and the arrangement can achieve a good dustproof effect to a certain extent, but after the button and the elastic sheet are pressed for multiple times, the rubber film is worn or damaged in the multiple pressing process, and the dustproof effect is greatly reduced.

SUMMERY OF THE UTILITY MODEL

To the not enough of closest prior art existence, the utility model aims to provide a life is longer, dustproof the touching switch that prevents dust that dustproof effect is better.

To the above, the utility model provides a technical scheme that its technical problem and take is: the utility model provides a dustproof switch that dabs, includes apron, base, button, shell fragment and pin, its characterized in that: the base be provided with the pin outward, be provided with the recess in the base, be provided with the shell fragment in the recess, the shell fragment top is provided with the button, be provided with the apron on the base, be provided with the through-hole that supplies the button to pass on the apron, be provided with the plastics lagging that is used for fixed button between button and the through-hole, plastics lagging and through-hole, button shape looks adaptation, the button lower extreme is provided with the arc arch, and the arc arch is just to the shell fragment top, be provided with horizontal annular notch in the arc arch, be provided with the fixed slot in the recess, the fixed slot is neat with plastics lagging lower extreme, the fixed slot internal fixation is provided with and is used for dirt-proof rubber membrane, is provided with the round hole corresponding with annular notch on the rubber membrane, round hole and annular notch shape looks gomphosis.

The utility model discloses still further set up to, the apron be provided with the mounting hole and with the erection column that the mounting hole cooperation was used in the both sides that are located the through-hole, the apron is fixed in on the base through the erection column.

The utility model discloses still further set up to, the apron cover in the left and right sides of base and converge in the bottom, the apron that is located both sides is provided with the lug.

The utility model discloses still further set up to, the round hole edge of rubber membrane do the thickening and consolidate and handle.

The utility model discloses still further set up to, the pin be certain angle slope setting.

Has the advantages that:

1. the rubber membrane is opened in its annular notch of putting into after the round hole, and the rubber membrane no longer is located between button and the shell fragment, has avoided pressing the wearing and tearing of in-process to the rubber membrane for a long time many times at the button, has improved the life of rubber membrane, and rubber membrane and annular notch closely laminate each other, make the leakproofness guaranteed, and the dustproof and waterproof effect of button has certain promotion simultaneously.

2. The position of apron can be stabilized to the erection column, strengthens the stability of switch, and four directions about the upper and lower of apron cladding base have reached the effect of consolidating the switch, prevent that the not hard up condition of switch from taking place in the use, and the installation that dabs the switch is more nimble, and easy installation, sound construction.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic side view of the present embodiment.

Reference numerals: 1-cover plate; 12-plastic sheathing; 13-mounting a post; 14-a tab; 2-a base; 21-a groove; 3-a button; 31-an arc-shaped protrusion; 32-an annular recess; 33-a rubber membrane; 4-a spring plate; 5-pin.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.

As shown in fig. 1-2, the dustproof cover plate comprises a cover plate 1, a base 2, a button 3, an elastic sheet 4 and pins 5, wherein the pins 5 are arranged outside the base 2, a groove 21 is arranged in the base 2, the elastic sheet 4 is arranged in the groove 21, the button 3 is arranged above the elastic sheet 4, the cover plate 1 is arranged on the base 2, a through hole for the button 3 to pass through is arranged on the cover plate 1, a plastic sleeve plate 12 for fixing the button 3 is arranged between the button 3 and the through hole, the plastic sleeve plate 12 is matched with the through hole and the button 3 in shape, an arc-shaped bulge 31 is arranged at the lower end of the button 3, the arc-shaped bulge 31 is right above the elastic sheet 4, a transverse annular notch 32 is arranged on the arc-shaped bulge 31, a fixing groove is arranged in the groove 21, the fixing groove is aligned with the lower end of the plastic sleeve plate 12, a rubber membrane 33 for dust prevention is fixedly arranged in the fixing groove, a round hole corresponding to the annular notch 32 is arranged on the rubber membrane 33, the round hole and the gomphosis of annular notch 32 shape mutually, apron 1 be provided with the mounting hole and with the erection column 13 that the mounting hole cooperation was used in the both sides that lie in the through-hole, apron 1 is fixed in on base 2 through erection column 13, apron 1 cover in the left and right sides of base 2 and polymerize in the bottom, the apron 1 that lies in both sides is provided with lug 14, the round hole edge of rubber membrane 33 make thickening reinforcement and handle, pin 5 be certain angle slope setting.

In this embodiment, the base 2 has a groove 21 therein, the groove 21 is provided with a spring plate 4 therein, the button 3 passes through the cover plate 1 and is disposed at the upper end of the spring plate 4, the cover plate 1 can be fixed on the base 2 through the mounting post 13, when the button 3 is pressed, the button is reset by the spring plate 4, the rubber film 33 is fixed in the fixing groove of the base 2, the round hole in the rubber film 33 is just embedded with the annular notch 32, the thickening and reinforcing treatment at the edge of the round hole can improve the durability of the rubber film 33, the rubber film 33 is not easy to crack, the rubber film 33 seals the whole groove 21 and the spring plate 4 inside the groove 21, the dust can be prevented from entering the clamping shell of the spring plate 4, the spring plate 4 can be prevented from rusting to a certain extent, the service life of the spring plate 4 is prolonged, and the use effect of the whole switch is improved to achieve a state of tight contact, the button 3 is connected with the cover plate 1 through the plastic sleeve plate 12, the button 3 is prevented from shaking when pressed, make this dustproof light touch switch can fix in suitable position through lug 14, the lug 14 that the apron 1 both sides set up can let the switch be fixed in the mounting panel when the installation on, conveniently welds.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (5)

1. The utility model provides a dustproof switch that dabs, includes apron (1), base (2), button (3), shell fragment (4) and pin (5), its characterized in that: the dustproof plastic socket is characterized in that a pin (5) is arranged outside the base (2), a groove (21) is arranged in the base (2), an elastic sheet (4) is arranged in the groove (21), a button (3) is arranged above the elastic sheet (4), a cover plate (1) is arranged on the base (2), a through hole for the button (3) to pass through is arranged on the cover plate (1), a plastic sleeve plate (12) used for fixing the button (3) is arranged between the button (3) and the through hole, the plastic sleeve plate (12) is matched with the through hole and the button (3) in shape, an arc-shaped bulge (31) is arranged at the lower end of the button (3), the arc-shaped bulge (31) is just opposite to the upper part of the elastic sheet (4), a transverse annular notch (32) is arranged on the arc-shaped bulge (31), a fixing groove is arranged in the groove (21), the fixing groove is aligned with the lower end of the plastic sleeve plate (12), and a dustproof rubber film (33) is fixedly arranged in the fixing groove, the rubber membrane (33) is provided with a round hole corresponding to the annular notch (32), and the round hole is embedded with the annular notch (32) in shape.

2. The dust-proof tact switch according to claim 1, characterized in that: the cover plate (1) is provided with mounting holes and mounting columns (13) matched with the mounting holes on two sides of the through hole, and the cover plate (1) is fixed on the base (2) through the mounting columns (13).

3. The dust-proof tact switch according to claim 1, characterized in that: the cover plate (1) covers the left side and the right side of the base (2) and is converged at the bottom, and the cover plates (1) positioned at the two sides are provided with protruding pieces (14).

4. The dust-proof tact switch according to claim 1, characterized in that: the edge of the round hole of the rubber membrane (33) is thickened and reinforced.

5. The dust-proof tact switch according to claim 1, characterized in that: the pins (5) are obliquely arranged at a certain angle.

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