CN212967482U

CN212967482U - Push-button switch

Info

Publication number: CN212967482U
Application number: CN202021770688.9U
Authority: CN
Inventors: 杨沛林
Original assignee: Foshan Shunde Yimingda Electric Co ltd
Current assignee: Foshan Shunde Yimingda Electric Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-13
Anticipated expiration: 2030-08-24

Abstract

The utility model relates to a key switch, which comprises a shell, a key component and a trigger piece with conductivity; the trigger piece is connected with the shell in a linear moving way; the shell is fixedly provided with at least two electric connecting pieces with electric conductivity; each power connection piece is superposed with the trigger piece when viewed from top; the key assembly is arranged on the shell and connected with the trigger piece, and the key assembly can drive the trigger piece to move linearly so as to enable the trigger piece to be synchronously disconnected with or abutted against each power connection piece. The utility model can ensure the reliable disconnection between the electric connection parts; the key cover can be pressed for the odd times, the trigger piece can be enabled to be synchronously abutted against all the electric connection pieces, and the trigger output piece can be synchronously disconnected from all the electric connection pieces by pressing the trigger output piece for the even times, so that convenience is realized; the connecting cylinder can not fall off from the base when the inverted base is installed, and the assembly of the key switch is convenient.

Description

Push-button switch

Technical Field

The utility model relates to a key switch.

Background

The traditional key switch is usually small, a trigger part of the traditional key switch is usually fixedly connected with one conductive part, the trigger part can only be disconnected with or abutted against the other conductive part, and when the traditional key switch encounters an abnormality such as vibration and the like, the trigger part can be contacted with the conductive part to electrify, so that the disconnection reliability between the electric parts is low.

In addition, the conventional push switch is troublesome to assemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve at least one among the above-mentioned technical problem.

The utility model discloses the means of taking do: a key switch including a housing, a key assembly, and a conductive trigger; the trigger piece is connected with the shell in a linear moving way; the shell is fixedly provided with at least two electric connecting pieces with electric conductivity; each power connection piece is superposed with the trigger piece when viewed from top; the key assembly is arranged on the shell and connected with the trigger piece, and the key assembly can drive the trigger piece to move linearly so as to enable the trigger piece to be synchronously disconnected with or abutted against each power connection piece.

The utility model discloses the function that realizes does: the trigger part is synchronously disconnected or abutted against each electric connection part.

The utility model discloses the effect that reaches does: it is possible to achieve that a reliable disconnection between the electrical connection parts can be ensured.

According to a further technical scheme, the key assembly comprises a fixed sleeve, a key cover, a trigger output part and a reset part, wherein the fixed sleeve is fixedly connected with the shell, and the inner wall of the fixed sleeve is provided with a fixed chute and a guide abdicating groove communicated with the fixed chute; the key cover and the trigger output piece are provided with positioning teeth; the key cover is fixedly provided with a guide block, and the trigger output piece is embedded into the guide abdicating groove; the trigger output part is fixedly provided with a dislocation block which is staggered with the positioning teeth, the top end face of the dislocation block is provided with a dislocation inclined plane, the key cover is hinged with the trigger output part, and the guide block is positioned above the dislocation block; the trigger output part is connected with the trigger part; the both ends of piece that resets are connected with trigger output spare, shell respectively, make the piece that resets have the trend of upward movement.

The key cover can be pressed for the odd times, the trigger piece can be enabled to be synchronously abutted against all the electric connection pieces, and the trigger output piece can be pressed for the even times, so that the trigger piece and all the electric connection pieces can be synchronously disconnected, and the convenience is realized.

According to the technical scheme, the key assembly further comprises a connecting cylinder, the connecting cylinder extends outwards to form an outer edge, the trigger piece is provided with a connecting hole, the connecting cylinder penetrates through the connecting hole, the radius of an external circle of the outer edge is larger than that of an internal circle of the connecting hole when the connecting cylinder is overlooked, and the top end of the connecting cylinder is abutted to the trigger output piece.

According to the further technical scheme, the reset piece is a spring, the reset piece is inserted into the connecting cylinder, and two ends of the reset piece respectively support the connecting cylinder and the shell.

According to the further technical scheme, the shell is fixedly provided with a positioning column, and the resetting piece is sleeved on the positioning column.

Can ensure that the connecting cylinder moves linearly and the trigger piece is not inclined.

Further technical scheme, the shell includes shell and with shell releasable connection's base, and the upper cover is fixed to be provided with a plurality of cross sections and is the trigger guide block of L shape, and the lateral wall of trigger offsets or is close with the trigger guide block.

Further technical scheme, the piece that resets is horn spring, and the base is fixed to be provided with the chucking body.

The connecting cylinder can not fall off from the base when the inverted base is installed, and the assembly of the key switch is convenient.

Further technical scheme still includes and stabilizes the elastic component, trigger output spare reset and set up the clearance between the piece, the both ends of stabilizing the elastic component respectively with trigger output spare, reset the piece counterbalance for trigger output spare has the trend of keeping away from the piece that resets.

The pressure that trigger part and each connect the electric part to offset can be guaranteed, electric connection's reliability is guaranteed.

To sum up, the utility model discloses the effect that probably realizes does:

1) the disconnection between the electric connection pieces can be ensured to be reliable;

2) the key cover can be pressed for the odd times, the trigger piece can be enabled to be synchronously abutted against all the electric connection pieces, and the trigger output piece can be synchronously disconnected from all the electric connection pieces by pressing the trigger output piece for the even times, so that convenience is realized;

3) the connecting cylinder can not fall off from the base when the inverted base is installed, and the assembly of the key switch is convenient.

Drawings

Fig. 1 is a schematic perspective view of a key switch according to an embodiment of the present invention.

Fig. 2 is a schematic perspective exploded view of a key switch according to an embodiment of the present invention.

Fig. 3 is a schematic perspective exploded view of a key switch according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of a half section of the upper cover 18 according to an embodiment of the present invention.

Fig. 5 is a schematic perspective view of the key cover 32 and the trigger output 33 according to an embodiment of the present invention; the thick dotted arrow indicates a simplified virtual boundary between the fixed chute 311 and the guide-avoiding groove 312; the thick solid arrow indicates the direction of the rotation tendency of the trigger output member 33.

Fig. 6 is a schematic half-sectional view of a key switch according to an embodiment of the present invention.

Fig. 7 is a schematic illustration of profile one SEC 1.

Fig. 8 is a schematic diagram of profile two SEC 2.

Fig. 9 is a schematic perspective view of another embodiment of the key cover 32.

Fig. 10 is a schematic half-sectional view of a key switch according to another embodiment of the present invention.

Section one SEC 1; section two SEC 2; a housing 1; the power connection part 11; a trigger guide groove 12; a trigger guide block 121; an upper cover 18; a base 19; a trigger 2; a trigger end 21; a connecting hole 24; a key assembly 3; a fixed sleeve 31; a fixed chute 311; a guide-abdicating groove 312; a key cover 32; a guide block 321; an extension cap 329; a trigger output 33; an error block 331; a misaligned ramp 332; a reset member 34; positioning posts 341; a clamping body 342; a positioning tooth 35; a connecting cylinder 4; an outer edge 41; the elastic member is stabilized.

Detailed Description

The technical solution of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention.

As a specific example, the key switch of the embodiment of the present invention includes a housing 1, a key assembly 3, and a conductive trigger 2. Typically, the trigger 2 is made of brass or the like.

The trigger 2 is connected with the housing 1 in a linear movement manner.

At least two electric connecting pieces 11 with conductivity are fixedly arranged on the shell 1; each of the electric connection members 11 is overlapped with the trigger member 2 in a plan view. Normally, the triggering member 2 is provided with a triggering end 21, and the power receiving member 11 corresponds to the triggering end 21 one by one in a plan view.

The key assembly 3 is arranged on the shell 1 and connected with the trigger piece 2, and the key assembly 3 can drive the trigger piece 2 to move linearly, so that the trigger piece 2 and each electric connection piece 11 are synchronously disconnected or abutted.

The working principle is as follows: the trigger part 2 is synchronously disconnected or abutted against each electric connection part 11, so that the reliable disconnection between the electric connection parts 11 can be ensured.

The key assembly 3 is similar to a ratchet structure of a ball-point pen, specifically, the key assembly 3 includes a fixing sleeve 31, a key cover 32, a trigger output member 33 and a reset member 34, the fixing sleeve 31 is fixedly connected with the housing 1 (usually, the upper cover 18 and the fixing sleeve 31 are integrated), and a fixing inclined groove 311 and a guide abdicating groove 312 communicated with the fixing inclined groove 311 are arranged on the inner wall of the fixing sleeve 31; the key cover 32 and the trigger output part 33 are both provided with positioning teeth 35; the key cover 32 is fixedly provided with a guide block 321, and the trigger output part 33 is embedded into the guide abdicating groove 312, so that the key cover 32 can linearly move along the guide abdicating groove 312; the trigger output piece 33 is fixedly provided with a dislocation block 331 staggered with the positioning teeth 35, the top end face of the dislocation block 331 is provided with a dislocation inclined plane 332, the key cover 32 is hinged with the trigger output piece 33, and the guide block 321 is positioned above the dislocation block 331; the trigger output part 33 is connected with the trigger part 2 (can be bonded by glue, and can also be connected with the trigger part 2 by other modes); two ends of the reset piece 34 are respectively connected with the trigger output piece 33 and the shell 1, so that the reset piece 34 tends to move upwards.

The key cover 32 is pressed for the first time, so that the key cover 32 moves linearly downwards, the guide block 321 abuts against the dislocation block 331 to enable the key cover 32 to move linearly downwards until the dislocation block 331 moves out of the guide abdicating groove 312; at this time, the trigger output element 33 is moved upward by the reset element 34 until the positioning teeth 35 of the key cover 32 engage with the positioning teeth 35 of the trigger output element 33, and the trigger output element 33 is rotated; at this time, there is a portion where the positioning block 331 and the fixed chute 311 overlap in a plan view; the push button cover 32 is then released for the first time, the trigger output element 33 is moved upwards by the reset element 34 until the side wall of the offset block 331 abuts against the fixed inclined slot 311, at which point the positioning teeth 35 of the push button cover 32 are offset from the positioning teeth 35 of the trigger output element 33, and at the same time the trigger output element 33 is fixed in position relative to the housing 1 and is in the lower position, so that the trigger element 2 abuts against the respective power receiving element 11 synchronously. Pressing the key cover 32 for the second time to make the key cover 32 move linearly downwards, the positioning teeth 35 of the key cover 32 abut against the positioning teeth 35 of the trigger output piece 33 to make the trigger output piece 33 move downwards until the side wall of the dislocation block 331 moves out of the side wall of the fixed inclined groove 311, at the moment, the trigger output piece 33 moves upwards due to the reset piece 34 until the positioning teeth 35 of the key cover 32 are meshed with the positioning teeth 35 of the trigger output piece 33, and simultaneously the trigger output piece 33 rotates; at this time, there is an overlapping portion between the misalignment block 331 and the guide recess 312 in a plan view; then the key cover 32 is released for the second time, the trigger output member 33 moves upwards due to the reset member 34 until the dislocation block 331 and the guide block 321 enter the guide dislocation groove 312, at this time, the positioning teeth 35 of the key cover 32 are staggered with the positioning teeth 35 of the trigger output member 33, and simultaneously, the position of the trigger output member 33 relative to the shell 1 is fixed and is located at a high position, so that the trigger member 2 is synchronously disconnected with each power connection member 11. By repeating the above processes, the key cover 32 can be pressed for the odd times, the trigger part 2 can be synchronously abutted against (namely, powered on) each power connection part 11, and the trigger output part 33 can be pressed for the even times, so that the trigger part 2 and each power connection part 11 can be synchronously disconnected (namely, powered off), which is more convenient.

Further, the key assembly 3 further comprises a connecting cylinder 4, the connecting cylinder 4 extends outwards to form an outer edge 41, the trigger part 2 is provided with a connecting hole 24, the connecting cylinder 4 penetrates through the connecting hole 24, the radius of a circumscribed circle of the outer edge 41 is larger than that of an inscribed circle of the connecting hole 24 when the connecting cylinder 4 is overlooked, and the top end of the connecting cylinder 4 is abutted against the trigger output part 33, so that the trigger output part 33 is connected with the trigger part 2. The trigger output part 33 supports the trigger part 2 to move downwards to realize power on, and the outer edge 41 supports the trigger part 2 to move upwards to realize power off.

Preferably, the restoring element 34 is a spring, and the restoring element 34 is inserted into the connecting cylinder 4 and two ends of the restoring element respectively abut against the connecting cylinder 4 and the housing 1.

Furthermore, the housing 1 is fixedly provided with a positioning column 341, and the resetting piece 34 is sleeved on the positioning column 341. The connecting cylinder 4 can be ensured to move linearly, and the trigger part 2 is ensured not to be inclined.

Preferably, the housing 1 includes a housing 1 and a base 19 detachably connected to the housing 1, the upper cover 18 is fixedly provided with a plurality of trigger guide blocks 121 having an L-shaped cross section, and a side wall of the trigger 2 abuts against or is close to the trigger guide blocks 121, so that the trigger 2 is linearly movably connected to the housing 1.

Further, the reset element 34 is a horn spring (that is, the spiral radius of the spring gradually increases from bottom to top, and the drawing does not show an embodiment of the horn spring), the base 19 is fixedly provided with a clamping body 342, the clamping body 342 is embedded into the bottom end of the reset element 34, and the top end of the reset element 34 is embedded into the connecting cylinder 4. During assembly, the upper cover 18 is inverted, the key cover 32 and the trigger output part 33 are sequentially placed into the fixing sleeve 31, the trigger part 2 is placed into the trigger part guide groove 12 (namely, the grooves formed by surrounding of the trigger part guide blocks 121), then the base 19 and the connecting cylinder 4 are inverted, the upper cover 18 is moved until the upper cover 18 is connected with the base 19, the assembly can be completed, the connecting cylinder 4 cannot fall off from the base 19 when the base 19 is inverted for installation, and the assembly of the key switch is facilitated.

Alternatively, the button cover 32 is fixedly provided with an extension cap 329 to facilitate pressing the extension cap 329.

As another embodiment, the trigger mechanism further comprises a stable elastic element 5, a gap is arranged between the trigger output element 33 and the reset element 34, and two ends of the stable elastic element 5 respectively abut against the trigger output element 33 and the reset element 34, so that the trigger output element 33 tends to be away from the reset element 34. The pressure of the trigger part 2 against the electric connection parts 11 can be ensured, and the reliability of electric connection is ensured.

It will be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for the convenience and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the scope of the present invention.

Claims

1. The key switch is characterized by comprising a shell (1), a key assembly (3) and a trigger (2) with conductivity; the trigger piece (2) is connected with the shell (1) in a linear moving way; at least two electric connecting pieces (11) with conductivity are fixedly arranged on the shell (1); each power connection piece (11) is superposed with the trigger piece (2) in a plan view; the key assembly (3) is arranged on the shell (1) and is connected with the trigger piece (2), and the key assembly (3) can drive the trigger piece (2) to move linearly, so that the trigger piece (2) and each electric connection piece (11) are synchronously disconnected or abutted.

2. The key switch according to claim 1, wherein the key assembly (3) comprises a fixing sleeve (31), a key cover (32), a trigger output member (33) and a reset member (34), the fixing sleeve (31) is fixedly connected with the housing (1), and a fixing inclined groove (311) and a guide abdicating groove (312) communicated with the fixing inclined groove (311) are formed in the inner wall of the fixing sleeve (31); the key cover (32) and the trigger output piece (33) are both provided with positioning teeth (35); the key cover (32) is fixedly provided with a guide block (321), and the trigger output piece (33) is embedded into the guide abdicating groove (312); the trigger output piece (33) is fixedly provided with a dislocation block (331) which is staggered with the positioning teeth (35), the top end surface of the dislocation block (331) is provided with a dislocation inclined surface (332), the key cover (32) is hinged with the trigger output piece (33), and the guide block (321) is positioned above the dislocation block (331); the trigger output part (33) is connected with the trigger part (2); two ends of the reset piece (34) are respectively connected with the trigger output piece (33) and the shell (1), so that the reset piece (34) tends to move upwards.

3. The key switch according to claim 2, wherein the key assembly (3) further comprises a connecting cylinder (4), the connecting cylinder (4) extends outwards to form an outer edge (41), the triggering member (2) is provided with a connecting hole (24), the connecting cylinder (4) penetrates through the connecting hole (24), the radius of a circumscribed circle of the outer edge (41) is larger than the radius of an inscribed circle of the connecting hole (24) in a plan view, and the top end of the connecting cylinder (4) abuts against the triggering output member (33).

4. A push-button switch according to claim 3, characterized in that the reset member (34) is a spring, the reset member (34) is inserted into the connecting cylinder (4) and both ends thereof respectively abut against the connecting cylinder (4) and the housing (1).

5. The pushbutton switch according to claim 4, characterized in that the housing (1) is fixedly provided with a positioning post (341), and the reset piece (34) is fitted over the positioning post (341).

6. A push-button switch according to claim 5, characterized in that the upper cover (18) is fixedly provided with a plurality of trigger guide blocks (121) having an L-shaped cross-section, the side walls of the trigger (2) abutting or being close to the trigger guide blocks (121).

7. A push-button switch according to claim 6, characterized in that the return element (34) is a horn spring.

8. A push-button switch according to claim 3, further comprising a stable elastic member (5), wherein a gap is provided between the trigger output member (33) and the reset member (34), and two ends of the stable elastic member (5) respectively abut against the trigger output member (33) and the reset member (34), so that the trigger output member (33) tends to be away from the reset member (34).