CN210091949U - Double-signal output light touch key structure - Google Patents

Abstract

The utility model belongs to the technical field of a key switch and specifically relates to a double signal output dabs button structure, including casing, button, blotter and keypad, wherein the button upper end is equipped with the button head end, the button is located in the casing and the button head end upwards passes the casing upper surface, the keypad is adorned admittedly in the casing lower extreme, just be equipped with a plurality of contact buttons on the keypad the button lower extreme is equipped with metal shrapnel the metal shrapnel downside is equipped with the blotter, just the blotter with two adjacent contact buttons that correspond on the keypad offset. The utility model discloses can realize that the dual signal triggers, overall structure is simple, and triggering signal is unanimous, uses reliable and stable.

Description

Double-signal output light touch key structure

Technical Field

The utility model relates to a key switch, specifically speaking are double signal output dabs button structure.

Background

In the modern medical field, the key function requirements for human-computer interaction are very many, for example, the key needs to meet the requirements of short stroke, fast response, good hand feeling, direct feedback and the like, and the light touch key has unique advantages and is widely used on keys of some control panels. The touch switch utilizes the metal elastic sheet to complete the switching of the on-off state of the switch, when a button of the touch switch is pressed down, the elastic sheet is deformed under the action of elasticity and downwards contacts the soldering terminal of the contact key, so that the circuit is in the on-state, when external force is removed, the elastic sheet is deformed and restored to the original state and separated from the soldering terminal, and the circuit is not switched on any more. However, in the field of medical controllers at present, the contact key is generally in single-signal output, cannot realize a double-signal output function, and seriously restricts the development of medical equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a button structure is dabbed to two signal output can realize that the dual signal triggers, and overall structure is simple, and triggering signal is unanimous, uses reliable and stable.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a double signal output dabs button structure, includes casing, button, blotter and keypad, wherein the button upper end is equipped with the button head end, the button is located in the casing and the button head end upwards passes the casing upper surface, the keypad is adorned admittedly in the casing lower extreme, just the keypad upside is equipped with a plurality of contact buttons the button lower extreme is equipped with metal shrapnel downside is equipped with the blotter, just the blotter when the button is pressed with two adjacent contact buttons that correspond on the keypad offset.

The button comprises a button head end, a metal elastic sheet, a stud and a button cylinder, wherein the metal elastic sheet is fixedly connected to the lower side of the button cylinder, the stud is arranged on the upper side of the button cylinder, and a threaded hole is formed in the button head end and is in threaded connection with the stud.

Two sides of the lower end of the shell are respectively provided with a lower convex block, and two ends of the key board are respectively fixed at the lower ends of the lower convex blocks at the corresponding sides of the shell through screws.

And mounting lugs are arranged on two sides of the shell.

The utility model discloses an advantage does with positive effect:

1. the utility model discloses can realize that the dual signal triggers, overall structure is simple, and triggering signal is unanimous, uses reliable and stable, can satisfy frequent button action.

2. The utility model discloses a be equipped with the button head end of liftable on the button, can feel the adjustment of isoparametric according to the assembly condition and button application of force the button head end exposes the height of casing, uses in a flexible way, and application scope is wide.

Drawings

Figure 1 is a perspective view of the present invention,

figure 2 is a front view of the present invention of figure 1,

figure 3 is an exploded view of the present invention shown in figure 1,

fig. 4 is a schematic view of the button structure in fig. 3.

The button comprises a shell 1, a button through hole 101, a lower protruding block 102, an installation lug 103, a button 2, a button head 201, a metal elastic sheet 202, a stud 203, a button cylinder 204, a cushion pad 3, a contact button 4, a key board 5, a screw through hole 501 and a screw 6.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-4, the utility model discloses a casing 1, button 2, blotter 3 and keypad 5, wherein 2 upper ends of button are equipped with button head end 201, button 2 locates in casing 1 and button head end 201 upwards passes 1 upper surface of casing, as shown in fig. 3 1 upper surface of casing is equipped with the confession button through-hole 101 that button head end 201 passed, keypad 5 adorn in 1 lower extreme of casing through screw 6 admittedly, just 5 upside of keypad is the straight line and is equipped with a plurality of contact button 4 2 lower extreme of button is equipped with metal shrapnel 202 downside is equipped with blotter 3, just blotter 3 when button 2 is pressed with two adjacent contact button 4 that correspond on the keypad 5 offset.

The button head end 201 is arranged at the upper end of the button 2 in a liftable manner, as shown in fig. 3-4, the button 2 comprises a button head end 201, a metal elastic sheet 202, a stud 203 and a button cylinder 204, wherein the lower side of the button cylinder 204 is fixedly connected with the metal elastic sheet 202, the stud 203 is arranged on the upper side of the button cylinder 204, and a threaded hole is formed in the button head end 201 and is in threaded connection with the stud 203. As shown in fig. 1, button head end 201 needs to be exposed from casing 1 upper surface, the utility model discloses can be according to the adjustment of factors such as assembly condition, 2 application of force handfeels of button head end 201 exposes casing 1's height to guarantee that the dual signal triggers unanimously, and only need twist during the adjustment soon button head end 201 can, the adjustment is simple and convenient, simultaneously because button head end 201 with double-screw bolt 203 is threaded connection, can not influence normal button function.

As shown in fig. 3, two sides of the lower end of the casing 1 are respectively provided with a lower protrusion 102, two ends of the key board 5 are respectively fixed to the lower ends of the lower protrusions 102 on the corresponding side of the casing 1 through screws 6, the key board 5 is provided with screw through holes 501 for the screws 6 to pass through, and a gap between the two lower protrusions 102 at the lower end of the casing 1 is convenient for a person to observe the abutting condition of the metal elastic sheet 202 at the lower end of the button 2 and the buffer block 3 with the contact keys 4 on the key board 5.

As shown in fig. 1 to 3, mounting lugs 103 are provided on both sides of the housing 1 to facilitate the installation of the present invention on a corresponding device.

As shown in fig. 1 to 3, in the present embodiment, two buttons 2 are provided, and four contact keys 4 arranged in a line are provided on the key board 5, wherein the metal dome 202 at the lower end of one button 2 corresponds to two contact keys 4 on the left side, and the metal dome 202 at the lower end of the other button 2 corresponds to two contact keys 4 on the right side.

In this embodiment, the shell 1 is made of aluminum alloy, and the surface is subjected to oxidation treatment.

In this embodiment, each component of the button 2 is made of an aluminum alloy, wherein the metal gasket 202 is fixedly connected to the lower end of the button cylinder 204 through a screw, and when in use, an operator applies pressure to the button head end 201, that is, the metal elastic sheet 202 deforms and applies pressure to the two corresponding contact buttons 4, which is a known technique in the art.

In this embodiment, the material of the buffer pad 3 is silica gel, the buffer pad 3 is adhered to the metal elastic sheet 202 and is attached to the two corresponding contact buttons 4, so that the height difference of a part of the contact buttons 4 during welding can be offset when the button 2 acts, and better button hand feeling is provided.

The utility model discloses a theory of operation does:

the utility model discloses during the use, operating personnel presses button head end 201 of button 2, and then makes metal shrapnel 202 take place deformation and exert pressure to two contact buttons 4 that correspond on to realize that the dual signal triggers output simultaneously, in this embodiment, the signal is handled as the software all the way, and the signal is handled as the hardware all the way in addition, and only the software and hardware does not have the problem all, and medical equipment just starts and does corresponding action. Additionally the utility model provides a locate with the liftable button head end 201 2 upper ends of button can be according to the convenient adjustment of factors such as assembly condition and 2 application of force handfeels of button head end 201 exposes casing 1's height, guarantees that trigger signal is unanimous, uses reliable and stable.

Claims (4)

1. The utility model provides a double signal output dabs button structure which characterized in that: including casing (1), button (2), blotter (3) and keypad (5), wherein button (2) upper end is equipped with button head end (201), just button head end (201) upwards passes in casing (1) is located in button (2) casing (1) upper surface, keypad (5) admittedly are installed in casing (1) lower extreme, just keypad (5) upside is equipped with a plurality of contact button (4) button (2) lower extreme is equipped with metal shrapnel (202) downside is equipped with blotter (3), just blotter (3) when button (2) is pressed with two adjacent contact button (4) that correspond on keypad (5) offset.

2. The dual-signal-output tact key structure of claim 1, wherein: the button (2) comprises a button head end (201), a metal elastic sheet (202), a stud (203) and a button cylinder (204), wherein the lower side of the button cylinder (204) is fixedly connected with the metal elastic sheet (202), the stud (203) is arranged on the upper side of the button cylinder (204), and a threaded hole is formed in the button head end (201) and connected with the stud (203) in a threaded mode.

3. The dual-signal-output tact key structure of claim 1, wherein: two lower protruding blocks (102) are respectively arranged on two sides of the lower end of the shell (1), and two ends of the key board (5) are respectively fixed at the lower ends of the lower protruding blocks (102) on the corresponding side of the shell (1) through screws (6).

4. The dual-signal-output tact key structure of claim 1, wherein: and mounting lugs (103) are arranged on two sides of the shell (1).

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