CN211182009U

CN211182009U - Mechanical switch, circuit structure and keyboard

Info

Publication number: CN211182009U
Application number: CN202020127496.XU
Authority: CN
Inventors: 黄祖金
Original assignee: Shenzhen Source Lung Optical Technology Co ltd
Current assignee: Shenzhen Source Lung Optical Technology Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-08-04
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses a mechanical switch, circuit structure and keyboard. Wherein, this mechanical switch includes: the device comprises a shell, a middle shaft and a sounding component; the shell is provided with an accommodating groove and comprises a positioning column and a limiting table, the positioning column and the limiting table are convexly arranged on the bottom wall of the accommodating groove, the limiting table is arranged at one end, away from the bottom wall of the accommodating groove, of the positioning column, and the positioning column is provided with a first guide inclined plane; the middle shaft is connected with the inner wall of the containing groove in a sliding mode and provided with a positioning step; the sounding subassembly is located including the cover first elastic component and the sounding part of reference column, first elastic component is kept away from one end with storage tank diapire elasticity butt, the sounding part with spacing platform with location step butt. The utility model discloses mechanical switch simplifies mechanical switch's vocal structure, improves mechanical switch's sense of sound.

Description

Mechanical switch, circuit structure and keyboard

Technical Field

The utility model relates to an input device technical field, in particular to mechanical switch, applied this mechanical switch's circuit structure and keyboard.

Background

At present, an existing mechanical keyboard mainly includes a circuit board and a plurality of mechanical switches mounted on the circuit board, where each mechanical switch includes a housing, a middle shaft and an elastic member, a keycap above the middle shaft is pressed down, and the middle shaft is driven to move up and down by the elasticity of the elastic member to realize an input function. The keyboard is used as an important input device of electronic equipment such as a computer, the experience of the input equipment is determined by the quality of a keyboard switch, and the keyboard is required to have good hand feeling and sound feeling.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a mechanical switch, which is intended to have a good sound effect.

In order to achieve the above object, the present invention provides a mechanical switch comprising:

the shell is provided with an accommodating groove and comprises a positioning column and a limiting table, the positioning column and the limiting table are convexly arranged on the bottom wall of the accommodating groove, the limiting table is arranged at one end, away from the bottom wall of the accommodating groove, of the positioning column, and the positioning column is provided with a first guide inclined plane;

the middle shaft is connected with the inner wall of the accommodating groove in a sliding mode and provided with a positioning step; and

the sounding assembly comprises a first elastic piece and a sounding piece which are sleeved on the positioning column, one end of the first elastic piece, which is far away from the positioning column, is elastically abutted against the bottom wall of the accommodating groove, and the sounding piece is abutted against the limiting table and the positioning step;

the middle shaft is pressed downwards to push the sounding part to move towards the direction far away from the limiting table, and the first elastic part is compressed; work as the sound production piece is followed first slope of leading slides, makes the sound production piece breaks away from location step, first elastic component drive the sound production piece to spacing platform removes, so that the sound production piece with spacing platform collision sends sound.

The utility model discloses an in the embodiment, the reference column is provided with the hole of stepping down, the hole of stepping down runs through the diapire of storage tank, the sound production piece is equipped with the hole of stepping down, axis movably wears to locate the hole of stepping down with the hole of stepping down.

In an embodiment of the present invention, two of the limiting tables are convexly disposed on the side wall of the positioning column, and the two limiting tables are oppositely disposed;

one side face of the sounding part is provided with two limiting grooves, and the two limiting grooves are used for accommodating the two limiting tables.

In an embodiment of the present invention, a side wall of each of the limiting grooves is disposed in an inclined manner and forms a reset guide surface;

and/or, the reference column include first locating pin and with the second locating pin that first locating pin interval set up, first locating pin with the side that the second locating pin carried on the back mutually all is provided with spacing platform, first locating pin with the second locating pin encloses to close and forms the hole of stepping down.

In an embodiment of the present invention, a positioning block is convexly disposed on a side surface of the sounding element facing the bottom wall of the accommodating groove, and the positioning block is disposed around the avoiding hole;

a limiting rib is convexly arranged on the bottom wall of the accommodating groove and is arranged around the positioning column;

one end of the first elastic piece is arranged between the limiting rib and the positioning column, and the other end of the first elastic piece is sleeved on the outer wall surface of the positioning block.

In an embodiment of the present invention, the positioning block faces the second guiding inclined plane is disposed on a side surface of the positioning column, and when the positioning block slides relative to the positioning column, the second guiding inclined plane slides against the first guiding inclined plane.

In an embodiment of the present invention, the middle shaft includes a positioning member and a positioning shaft connected to the positioning member, the positioning member is slidably connected to an inner wall surface of the accommodating groove, the positioning shaft movably penetrates through the abdicating hole and the abdicating hole, and the positioning shaft is provided with the positioning step;

the mechanical switch further comprises a second elastic piece, one end of the second elastic piece is arranged between the limiting rib and the inner wall surface of the accommodating groove, and the other end of the second elastic piece is elastically abutted to the positioning piece.

In an embodiment of the present invention, the two opposite side walls of the accommodating groove are provided with sliding grooves; the two opposite outer side walls of the middle shaft are respectively provided with a convex block in a protruding mode, and the middle shaft is arranged in the accommodating groove in a sliding mode through the matching of the two convex blocks and the two sliding grooves;

and/or the shell is also provided with a sound outlet which is communicated with the containing groove.

The utility model also provides a circuit structure, including the circuit board with mechanical switch, mechanical switch locates on the circuit board.

The utility model also provides a keyboard, including base, key cap and circuit structure, circuit structure locates the base, the key cap with mechanical switch's axis is connected.

The technical proposal of the utility model is that the shell is provided with a containing groove, and the middle shaft and the sounding component are arranged in the containing groove; the middle shaft is slidably arranged in the accommodating groove; that is to say, the middle shaft slides in the accommodating groove and drives the sound production assembly to produce sound. Specifically, the shell comprises a positioning column and a limiting table, the positioning column is convexly arranged on the bottom wall of the accommodating groove, the limiting table is arranged at one end, away from the bottom wall, of the positioning column, the positioning column is provided with a first guide inclined plane, the sounding assembly comprises a first elastic piece and a sounding piece, the first elastic piece and the sounding piece are sleeved on the positioning column, under the elastic acting force of the first elastic piece, the sounding piece is in limited abutting contact with the limiting table, and the middle shaft is provided with a positioning step facing the bottom wall of the accommodating groove; that is to say, when the center shaft is pressed down, the center shaft slides down along the inner wall surface of the accommodating groove, the center shaft pushes the sounding part to move in the direction away from the limiting table through the positioning step, and the first elastic part is compressed; the middle shaft is pressed downwards to a certain stroke, the sounding part transversely slides through the first guide inclined surface, one side face of the sounding part is separated from the limit position of the positioning step, and the first elastic part drives the sounding part to move towards the limiting table, so that the sounding part collides with the limiting table and sounds. The utility model discloses mechanical switch simplifies mechanical switch's vocal structure, improves mechanical switch's sense of sound.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the mechanical switch of the present invention;

FIG. 2 is a schematic cross-sectional view of the mechanical switch of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the mechanical switch of FIG. 1;

FIG. 4 is a schematic diagram of a portion of the mechanical switch of FIG. 1;

FIG. 5 is a schematic view of another assembled structure of the mechanical switch of FIG. 1;

FIG. 6 is a schematic structural view of the sounding element of FIG. 5;

fig. 7 is a schematic structural view of the housing in fig. 5.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Shell body	22	Locating piece
11	Containing groove	23	Positioning shaft
				12	Positioning column	24	Bump
121	Hole of stepping down	3	Sound production assembly
				122	First positioning pin	31	First elastic member
123	Second positioning pin	32	Sound producing component
				13	Limiting table	321	Avoiding hole
14	First guide inclined plane	322	Keep away dead zone
				15	Spacing rib	323	Limiting groove
16	Sliding chute	324	Reset guide surface
				17	Sound outlet	33	Locating block
2	Middle shaft	34	Second guide inclined plane
				21	Positioning step	4	Second elastic member

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a mechanical switch is applied to the keyboard, in the use of keyboard, for reinforcing user's input experience, the keyboard can make a sound in the input to increase the sense organ of hearing of input. Referring to fig. 1 in detail, it is a schematic structural diagram of an embodiment of the mechanical switch of the present invention; referring to fig. 2, a schematic cross-sectional structure of the mechanical switch of fig. 1 is shown; referring to fig. 3, another cross-sectional structure diagram of the mechanical switch of fig. 1 is shown; referring to fig. 4, a schematic diagram of a portion of the mechanical switch of fig. 1 is shown; referring to fig. 5, a schematic assembly view of another part of the structure of the mechanical switch of fig. 1 is shown; referring to fig. 6, a schematic structural view of the sounding member in fig. 5 is shown; referring to fig. 7, a schematic structural diagram of the housing in fig. 5 is shown.

In an embodiment of the present invention, as shown in fig. 1 and shown in fig. 2, fig. 3, fig. 4 and fig. 5, the mechanical switch includes: the device comprises a shell 1, a middle shaft 2 and a sounding component 3; the shell 1 is provided with an accommodating groove 11, the middle shaft 2 and the sounding component 3 are arranged in the accommodating groove 11, and the middle shaft 2 is slidably arranged in the accommodating groove 11; that is, the middle shaft 2 slides in the accommodating groove 11 and drives the sound generating component 3 to generate sound.

In practical application of this embodiment, the mechanical switch is mounted on the circuit board, and the mechanical switch can be electrically or inductively connected with the circuit board; that is, the mechanical switch may be a mechanical dome trigger, or the mechanical switch may be a light-sensitive trigger.

It can understand, when mechanical switch is mechanical shell fragment trigger formula, mechanical switch is connected with the circuit board electricity, is provided with the metal shrapnel in the casing 1, and when mechanical switch's axis 2 pushed down, axis 2 except can trigger sound production subassembly 3 and make a sound, axis 2 can also contact the metal shrapnel, and the cooperation circuit board through the metal shrapnel generates the signal of telecommunication.

When mechanical switch is light sense trigger formula, be provided with light generator and light receiver on the circuit board, when mechanical switch's axis 2 pushed down, axis 2 except can trigger sound producing component 3 and make a sound, axis 2 can also shelter from light generator or light receiver to make circuit board cooperation light generator and light receiver generate the signal of telecommunication. Alternatively, when the middle shaft 2 of the mechanical switch is pressed down, the middle shaft 2 may be changed from a state of shielding the light generator or the light receiver to an open state, that is, when the middle shaft 2 is pressed down, the light of the light generator may irradiate the light receiver.

In an embodiment of the present invention, the housing 1 has a containing slot 11, the housing 1 includes a positioning column 12 and a limiting platform 13 protruding from the bottom wall of the containing slot 11, the limiting platform 13 is disposed at one end of the positioning column 12 away from the bottom wall of the containing slot 11, the positioning column 12 is provided with a first guiding inclined plane 14; the middle shaft 2 is connected with the inner wall of the containing groove 11 in a sliding manner, and the middle shaft 2 is provided with a positioning step 21; the sounding assembly 3 includes a first elastic member 31 and a sounding member 32 sleeved on the positioning column 12, wherein one end of the first elastic member 31 away from the positioning column is elastically abutted against the bottom wall of the accommodating groove 11, and the sounding member 32 is abutted against the limiting table 13 and the positioning step 21.

In practical application of the present embodiment, the middle shaft 2 is pressed downward to push the sounding element 32 to move away from the position-limiting table 13, and the first elastic element 31 is compressed; when the sounding element 32 slides along the first guiding inclined surface 14, the sounding element 32 is separated from the positioning step 21, and the first elastic element 31 drives the sounding element 32 to move towards the limiting table 13, so that the sounding element 32 collides with the limiting table 13 to make a sound.

Alternatively, the positioning step 21 may abut against the peripheral side of the sounding element 32, so that under the guidance of the first guiding inclined surface 14, the sounding element 32 may slide laterally relative to the central axis 2, so that the sounding element 32 is separated from the positioning step 21, and the first elastic element 31 drives the sounding element 32 to return to the original position, so that the sounding element 32 collides with the limit table 13 to generate sound. That is, in the process of the first elastic member 31 from the compressed state to the original state, the first elastic member 31 applies both the vertical force and the lateral force to the sounding member 32.

Optionally, the sounding element 32 may also be provided with an avoiding hole 321, and the middle shaft 2 is disposed through the avoiding hole 321; that is, the positioning step 21 is in limit contact with the wall surface of the periphery of the avoiding hole 321.

Optionally, the first elastic member 31 is a spring.

In the embodiment, the housing 1 is provided with the accommodating groove 11, and the middle shaft 2 and the sounding component 3 are arranged in the accommodating groove 11; wherein, the middle shaft 2 is slidably arranged in the containing groove 11; that is, the middle shaft 2 slides in the accommodating groove 11 and drives the sound generating component 3 to generate sound. Specifically, the shell 1 comprises a positioning column 12 and a limiting table 13, the positioning column 12 is convexly arranged on the bottom wall of the accommodating groove 11, the limiting table 13 is arranged at one end, away from the bottom wall, of the positioning column 12, the positioning column 12 is provided with a first guide inclined surface 14, the sounding component 3 comprises a first elastic part 31 and a sounding part 32 which are sleeved on the positioning column 12, under the elastic acting force of the first elastic part 31, the sounding part 32 is in limiting and abutting contact with the limiting table 13, and the center shaft 2 is provided with a positioning step 21 facing the bottom wall of the accommodating groove 11; that is, when the center shaft 2 is pressed down, the center shaft 2 slides down along the inner wall surface of the accommodating groove 11, the center shaft 2 pushes the sounding part 32 to move in the direction away from the limiting table 13 through the positioning step 21, and the first elastic part 31 is compressed; the middle shaft 2 is pressed down to a certain stroke, the sounding element 32 transversely slides through the first guide inclined surface 14, one side surface of the sounding element 32 is separated from the limit position of the positioning step 21, and the first elastic element 31 drives the sounding element 32 to move towards the limit table 13, so that the sounding element 32 collides with the limit table 13 to make a sound. The utility model discloses mechanical switch simplifies mechanical switch's vocal structure, improves mechanical switch's sense of sound.

In an embodiment of the present invention, the positioning column 12 is provided with a yielding hole 121, the yielding hole 121 runs through the bottom wall of the accommodating groove 11, the sounding element 32 is provided with a yielding hole 321, and the middle shaft 2 movably penetrates through the yielding hole 121 and the yielding hole 321.

In this embodiment, the sound-generating member 32 is provided with the avoiding hole 321, the positioning column 12 is provided with the avoiding hole 121, the avoiding hole 321 and the avoiding hole 121 are arranged in the same straight line, so that the positioning step 21 is in spacing contact with the peripheral wall surface of the avoiding hole 321, the stress of the sound-generating member 32 is as close to the axis as possible, and the wall surface sound-generating member 32 is subjected to uneven stress. On the other hand, the mechanical switch is a light-sensitive trigger type mechanical switch, and the positioning column 12 is provided with a yielding hole 121, so that the middle shaft 2 passes through the yielding hole 121, and the triggering of the electrical signal is realized by matching with a circuit board.

Optionally, in order to increase the moving stability of the sounding element 32, an avoiding area is further disposed on the sounding element 32, and the avoiding area is communicated with the avoiding hole 321, that is, the avoiding area faces a side surface of the middle shaft 2, which faces away from the positioning step 21. When the sounding member 32 moves laterally relative to the center shaft 2, the center shaft 2 is partially accommodated in the escape area, and at this time, one side surface of the sounding member 32 is separated from the positioning step 21 of the center shaft 2.

The inner wall surface of the avoiding area can be an arc surface which is matched with the outer wall surface of the middle shaft 2.

In an embodiment of the present invention, as shown in fig. 7, the sidewall of the positioning column 12 is provided with two limiting tables 13, the two limiting tables 13 are disposed relatively, one side of the sounding part 32 is provided with two limiting grooves 323, and the two limiting grooves 323 are used for accommodating the two limiting tables 13.

In this embodiment, two opposite limiting tables 13 are disposed on the outer wall surface of the positioning column 12, so that when the limiting tables 13 abut against the sounding element 32, the two ends of the sounding element 32 are stressed uniformly. On the other hand, the sound generating element 32 is provided with a limiting groove 323, each limiting groove 323 is arranged corresponding to each limiting platform 13, and when one side surface of the sound generating element 32 is adjacent to the limiting platform 13, the limiting platform 13 can be accommodated in the limiting groove 323 to avoid the swinging of the limiting element.

In an embodiment of the present invention, as shown in fig. 6, the sidewall of each limiting groove 323 is inclined and forms a reset guiding surface 324.

Because, after sound production piece 32 removed to storage tank 11 diapire, sound production piece 32 for reference column 12 lateral shifting, at this moment, in order to improve the efficiency that sound production piece 32 resets for when sound production piece 32 resets spacing platform 13 at every turn, a side of sound production piece 32 all can support with location step 21 and hold, so, be provided with at the lateral wall of spacing groove 323 and reset and lead the inclined plane, so that sound production piece 32 removes towards a direction, make spacing platform 13 fall into in the spacing groove 323.

In an embodiment of the present invention, as shown in fig. 5 and fig. 7, the positioning column 12 includes a first positioning pin 122 and a second positioning pin 123 disposed at an interval with the first positioning pin 122, a side of the first positioning pin 122 and the second positioning pin 123 opposite to each other is provided with a limiting table 13, and the first positioning pin 122 and the second positioning pin 123 enclose and close to form the yielding hole 121.

In the present embodiment, the structure of the positioning column 12 is formed by spacing the first positioning pin 122 and the second positioning pin 123, so that a gap exists between the first positioning pin 122 and the second positioning pin 123, and the material for manufacturing the housing 1 is reduced. On the other hand, the end surfaces of the first positioning pin 122 and the second positioning pin 123 far away from the bottom wall of the accommodating groove 11 may be relatively close to or far away from each other, so that the end surfaces of the first positioning pin 122 and the second positioning pin 123 far away from the bottom wall of the accommodating groove 11 penetrate through the yielding hole 121, and the efficiency of installing the sounding element 32 is improved.

In an embodiment of the present invention, as shown in fig. 4, 5 and 6, a positioning block 33 is convexly disposed on a side surface of the sounding element 32 facing the bottom wall of the accommodating groove 11, the positioning block 33 is disposed around the avoiding hole 321, a limiting rib 15 is convexly disposed on the bottom wall of the accommodating groove 11, and the limiting rib 15 is disposed around the positioning column 12;

one end of the first elastic member 31 is disposed between the limiting rib 15 and the positioning column 12, and the other end of the first elastic member 31 is sleeved on the outer wall surface of the positioning block 33.

In this embodiment, the sounding element 32 is connected to one end of the first elastic element 31 through the positioning block 33, so as to position the first elastic element 31, and avoid the occurrence of the accident that the first elastic element 31 slides down. On the other hand, the bottom wall of the accommodating groove 11 is convexly provided with a limiting rib 15, the limiting rib 15 and the positioning column 12 are matched to position the other end of the first elastic part 31, and the stability of the first elastic part 31 arranged on the positioning column 12 is improved.

In an embodiment of the present invention, as shown in fig. 4, a second guiding inclined surface 34 is disposed on a side surface of the positioning block 33 facing the positioning column 12, and when the positioning block 33 slides relative to the positioning column 12, the second guiding inclined surface 34 slides and abuts against the first guiding inclined surface 14.

In this embodiment, the second guiding inclined surface 34 may be disposed parallel to the first guiding inclined surface 14, and when the positioning block 33 slides relative to the positioning column 12, the guiding efficiency is improved by the cooperation of the second guiding inclined surface 34 and the first guiding inclined surface 14, the speed of the sounding element 32 rebounded to the limiting table 13 by the first elastic element 31 is improved, and the response efficiency is improved.

In an embodiment of the present invention, as shown in fig. 2, fig. 3, fig. 4 and fig. 5, the middle axle 2 includes a positioning element 22 and a positioning shaft 23 connected to the positioning element 22, the positioning element 22 is slidably connected to an inner wall surface of the accommodating groove 11, the positioning shaft 23 movably penetrates through the avoiding hole 121 and the avoiding hole 321, and the positioning shaft 23 is provided with a positioning step 21; it will be appreciated that the side of the positioning element 22 remote from the positioning shaft 23 may be provided with a protrusion of a specific shape, which matches the positioning groove of the key cap, i.e. the key cap is connected to the central shaft 2 by the matching of the positioning groove and the protrusion.

The mechanical switch further comprises a second elastic element 4, one end of the second elastic element 4 is arranged between the limiting rib 15 and the inner wall surface of the accommodating groove 11, and the other end of the second elastic element 4 is elastically abutted against the positioning element 22. As can be understood, the second elastic part 4 is arranged to enhance the resilience of the middle shaft 2 so as to improve the hand feeling of a user when the user knocks.

In an embodiment of the present invention, as shown in fig. 7, two opposite side walls of the accommodating groove 11 are provided with sliding grooves 16; the two opposite outer side walls of the middle shaft 2 are both convexly provided with a convex block 24, and the middle shaft 2 is arranged in the accommodating groove 11 in a sliding way through the matching of the two convex blocks 24 and the two sliding grooves 16. That is, the two opposite outer wall surfaces of the positioning element 22 are provided with the protrusions 24, so that the positioning element 22 can be slidably connected with the side walls of the accommodating groove 11 through the matching of the protrusions 24 and the sliding groove 16; on the other hand, the positioning element 22 is limited in the containing groove 11 by the bump 24.

Optionally, the second elastic member 4 is a spring.

In the present embodiment, the projection 24 and the central shaft 2 are integrally provided.

In an embodiment of the present invention, as shown in fig. 1, the casing 1 further has a sound hole 17, the sound hole 17 is communicated with the accommodating groove 11, and the sound hole 17 is spaced from the sliding groove 16, so that the sound generated by the sound generating element 32 is transmitted.

In the present embodiment, the housing 1 is provided with a plurality of sound outlet holes 17, and the sound outlet holes 17 are provided at intervals.

The utility model discloses still provide a circuit structure, this circuit structure includes circuit board (not shown) and mechanical switch, and this mechanical switch's concrete structure refers to above-mentioned embodiment, because this circuit structure has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. The mechanical switch is arranged on the circuit board; that is, a mounting station may be provided on the circuit board, and the housing 1 may be snapped at the mounting station.

It will be appreciated that the circuit board may be a conventional type circuit board, and that a plurality of mounting stations may be provided on the circuit board, one mechanical switch being mounted at each mounting station. It will be appreciated that a light generator and a light receiver arranged opposite the light generator are provided at each mounting station, the housing 1 being arranged between the light generator and the light receiver.

In this embodiment, because the light generator and the light receiver are provided with the mechanical switch, when the middle shaft 2 is pressed down, the middle shaft 2 can pass through the yielding hole 121 of the positioning column 12 to realize one-time blocking of the light path from the light generator to the light receiver, and the circuit board realizes one-time triggering of an electric signal through the light generator and the light receiver.

The utility model also provides a keyboard, this keyboard include base (not shown), key cap (not shown) and circuit structure, and above-mentioned embodiment is referred to this circuit structure's concrete structure, because this keyboard has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. The circuit structure is arranged on the base, and the keycap is connected with a middle shaft 2 of a mechanical switch on the circuit structure.

The above is only the optional embodiment of the present invention, and not therefore the scope of the present invention is limited, all under the inventive concept, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A mechanical switch, comprising:

2. The mechanical switch of claim 1, wherein the positioning post is provided with a step-down hole, the step-down hole penetrates through a bottom wall of the accommodating groove, the sounding element is provided with a step-down hole, and the middle shaft movably penetrates through the step-down hole and the step-down hole.

3. The mechanical switch according to claim 2, wherein two of said limiting stages are protruded from a side wall of said positioning post, and said two limiting stages are disposed opposite to each other;

4. The mechanical switch of claim 3, wherein the side wall of each of the limiting grooves is inclined and forms a reset guide surface;

5. The mechanical switch according to claim 2, wherein a positioning block is convexly disposed on a side surface of the sound-generating member facing the bottom wall of the accommodating groove, and the positioning block is disposed around the avoiding hole;

6. The mechanical switch according to claim 5, wherein a side surface of the positioning block facing the positioning column is provided with a second guiding inclined surface, and when the positioning block slides relative to the positioning column, the second guiding inclined surface is in sliding contact with the first guiding inclined surface.

7. The mechanical switch according to claim 5, wherein the middle shaft includes a positioning element and a positioning shaft connected to the positioning element, the positioning element is slidably connected to an inner wall surface of the accommodating groove, the positioning shaft movably penetrates through the avoiding hole and the avoiding hole, and the positioning shaft is provided with the positioning step;

8. The mechanical switch according to any one of claims 1 to 7, wherein two opposite side walls of said receiving groove are provided with sliding grooves; the two opposite outer side walls of the middle shaft are respectively provided with a convex block in a protruding mode, and the middle shaft is arranged in the accommodating groove in a sliding mode through the matching of the two convex blocks and the two sliding grooves;

9. A circuit arrangement, comprising a circuit board and a mechanical switch according to any one of claims 1 to 8, said mechanical switch being provided on said circuit board.

10. A keyboard comprising a base, a key cap and the circuit arrangement of claim 9, said circuit arrangement being disposed on said base, said key cap being connected to a central axis of said mechanical switch.