CN212380324U

CN212380324U - Key switch

Info

Publication number: CN212380324U
Application number: CN202021048540.4U
Authority: CN
Inventors: 张建挺
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-01-19
Anticipated expiration: 2030-06-09

Abstract

The utility model relates to a key switch, which comprises a bracket and a bottom plate buckled at the bottom of the bracket, a movable contact piece and a static contact piece which are mutually matched are arranged in a cavity formed by the bottom plate and the support, sliding columns are arranged at two ends of the top of the support, a switch cap is arranged above the support, a sliding plate sleeved on the sliding columns is arranged at the bottom of the switch cap, a circuit board is arranged in the cavity formed between the sliding plate and the switch cap, an LED lamp bead is arranged in the middle of the top end face of the circuit board, a light-transmitting cover covering the top of the LED lamp bead is arranged above the circuit board, a large gear passing through the sliding plate is arranged below the circuit board, a small gear is meshed below the large gear, a main spring is arranged in an inner hole below the small gear, and a left spring, the right side of pinion is equipped with the spring fixed column of fixing in the support, and the cover is equipped with right spring on the spring fixed column, and the bottom of right spring is connected with the power cord. The utility model discloses a key switch structural design is reasonable, and the design is more reasonable, and work is more stable.

Description

Key switch

Technical Field

The utility model relates to a key switch.

Background

Traditional key switch is for letting the pilot lamp luminous, connect a power cord on the circuit board, ratchet switch's support center neck cover has a spring, the spring reciprocates is pressed to the switch cap, the action that drives big pinion realizes opening and shutting, this kind of design is because the circuit board moves along with the switch cap, power cord on the circuit board moves along with the circuit board, power cord reciprocating motion can influence the connection with the circuit board and lead the solid degree, there is the safety risk, influence life, but also occupy very big place.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a key switch.

The utility model discloses a key switch, including support and the bottom plate of lock in the support bottom, be equipped with the movable contact spring and the static contact piece of mutually supporting in the cavity that bottom plate and support formed, the both ends at support top all are equipped with the traveller, the top of support is equipped with the switch cap, the bottom of switch cap is equipped with the slide of cover setting on the traveller, install the circuit board in the cavity that forms between slide and the switch cap, the top face middle part of circuit board is equipped with LED lamp pearl, the top of circuit board is equipped with the printing opacity cover that covers at LED lamp pearl top, the below of circuit board is equipped with the gear wheel that passes the slide, the below meshing of gear wheel has the pinion, be equipped with the main spring in the below hole of pinion, the bottom of main spring supports and leans on the movable contact spring, the left end top of movable contact with the circuit board; the right side of pinion is equipped with the spring fixed column of fixing in the support, and the cover is equipped with right spring on the spring fixed column, and the top of right spring passes the slide after and contacts with the circuit board, and the bottom of right spring is connected with the power cord.

The utility model discloses a key switch, both sides wall all is equipped with two power cord draw-in grooves around the support, the power cord card is established in the power cord draw-in groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a key switch structural design is reasonable, respectively establishes the installation in support center neck department both sides and controls the spring, wherein two end intercommunication circuit boards and movable contact spring about the spring of a left side, and right spring upper end connecting lines board, lower pot head are on the spring fixed column and connect the power cord in right spring bottom, and the design is more reasonable, and work is more stable.

Drawings

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

fig. 2 is a second schematic structural diagram of a key switch according to an embodiment of the present invention.

In the figure:

1. a support; 2. a base plate; 3. a movable contact spring; 4. a static contact piece; 5. a traveler; 6. a switch cap; 7. a slide plate; 8. a circuit board; 9. LED lamp beads; 10. a light-transmitting cover; 11. a bull gear; 12. a pinion gear; 13. a main spring; 14. a left spring; 15. a spring fixing column; 16. a right spring; 17. a power line; 18. power cord draw-in groove.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1, a key switch comprises a support 1 and a bottom plate 2 buckled at the bottom of the support 1, a movable contact piece 3 and a static contact piece 4 which are matched with each other are arranged in a cavity formed by the bottom plate 2 and the support 1, sliding columns 5 are arranged at two ends of the top of the support 1, a switch cap 6 is arranged above the support 1, a sliding plate 7 sleeved on the sliding column 5 is arranged at the bottom of the switch cap 6, a circuit board 8 is arranged in the cavity formed between the sliding plate 7 and the switch cap 6, an LED lamp bead 9 is arranged in the middle of the top end face of the circuit board 8, a light-transmitting cover 10 covering the top of the LED lamp bead 9 is arranged above the circuit board 8, a large gear 11 penetrating through the sliding plate 7 is arranged below the circuit board 8, a small gear 12 is meshed below the large gear 11, a main spring 13 is arranged in an inner hole below the small gear 12, the bottom end of the main spring 13 is, the top end of the left spring 14 penetrates through the sliding plate 7 upwards and then contacts with the circuit board 8; the right side of the pinion 12 is provided with a spring fixing column 15 fixed in the support 1, the spring fixing column 15 is sleeved with a right spring 16, the top end of the right spring 16 penetrates through the sliding plate 7 and then contacts with the circuit board 8, and the bottom end of the right spring 16 is connected with a power line 17.

The utility model discloses a key switch, both sides wall all is equipped with two power cord draw-in grooves 18 around support 1, power cord 17 card is established in power cord draw-in groove 18.

The utility model discloses a key switch structural design is reasonable, respectively establishes the installation in support center neck department both sides and controls the spring, wherein two end intercommunication circuit boards and movable contact spring about the spring of a left side, and right spring upper end connecting lines board, lower pot head are on the spring fixed column and connect the power cord in right spring bottom, and the design is more reasonable, and work is more stable.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a key switch, includes bottom plate (2) of support (1) and lock in support (1) bottom, its characterized in that: a movable contact piece (3) and a static contact piece (4) which are matched with each other are arranged in a cavity formed by the bottom plate (2) and the support (1), sliding columns (5) are arranged at two ends of the top of the support (1), a switch cap (6) is arranged above the support (1), a sliding plate (7) sleeved on the sliding columns (5) is arranged at the bottom of the switch cap (6), a circuit board (8) is installed in the cavity formed between the sliding plate (7) and the switch cap (6), an LED lamp bead (9) is arranged in the middle of the top end face of the circuit board (8), a light-transmitting cover (10) covering the top of the LED lamp bead (9) is arranged above the circuit board (8), a large gear (11) penetrating through the sliding plate (7) is arranged below the circuit board (8), a small gear (12) is meshed below the large gear (11), a main spring (13) is arranged in an inner hole below the small gear (12), and the bottom end of the, a left spring (14) is arranged above the left end of the movable contact piece (3), and the top end of the left spring (14) upwards penetrates through the sliding plate (7) and then is contacted with the circuit board (8); the right side of pinion (12) is equipped with spring fixed column (15) of fixing in support (1), and the cover is equipped with right spring (16) on spring fixed column (15), and the top of right spring (16) is passed slide (7) back and is contacted with circuit board (8), and the bottom of right spring (16) is connected with power cord (17).

2. The key switch of claim 1, wherein: two power cord clamping grooves (18) are formed in the front side wall and the rear side wall of the support (1), and the power cord (17) is clamped in the power cord clamping grooves (18).