CN209880439U - Double-spring type long-life optical axis key - Google Patents

Abstract

The utility model discloses a two spring type high life optical axis buttons belongs to optical axis button field. The double-spring type long-life optical axis key comprises a base and an upper cover which are matched, wherein a guide core is arranged on the upper cover in a sliding mode, a first through hole matched with the guide core is formed in the upper cover, a second through hole corresponding to the guide core is formed in the base, a round shaft is arranged at the lower end inside the guide core, a shaft barrel corresponding to the round shaft is fixedly arranged on the base, a spring is sleeved on the shaft barrel, two ends of the spring are respectively connected with the base and the guide core, the lower end of the guide core is connected with a telescopic rod, the lower end of the telescopic rod is rotatably connected with the round shaft, a torsion spring is sleeved on the telescopic rod, and two ends of the torsion spring are respectively connected with the round shaft and the guide core; the utility model discloses under the effect of torsional spring and actuating lever and fixture block, downward movement once more has obvious sense of touch when the staff, meanwhile can increase the ware sense of touch under the effect of double spring, increase holistic life for a spring.

Description

Double-spring type long-life optical axis key

Technical Field

The utility model relates to an optical axis button technical field especially relates to two spring type high life optical axis buttons.

Background

The optical axis key is a circuit switch which is realized by utilizing an optical principle and a photoelectric coupling technology, wherein a light path is formed by an infrared transmitting tube and an infrared receiving tube, and a light blocking piece is used for cutting off and conducting the light path so as to change the circuit impedance.

The optical axis button resets and presses what a simple spring does at present, and on the one hand the user is at push switch because single spring action, and whether to the optical axis cut the cutting off of carrying out the light path does not have better sense of touch, and the perception whether to cut off is not good, and the long-time use of single spring of on the other hand is worn and torn, and the sense of touch weakens once more, influences the holistic life of optical axis button.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of poor touch feeling in the prior art, influencing the service life, and the proposed double-spring type high-life optical axis button.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a double-spring type long-life optical axis key comprises a base and an upper cover which are matched, wherein a guide core is arranged on the upper cover in a sliding manner, a first through hole matched with the guide core is formed in the upper cover, a second through hole corresponding to the guide core is formed in the base, a round shaft is arranged at the lower end inside the guide core, a shaft barrel corresponding to the round shaft is fixedly arranged on the base, a spring is sleeved on the shaft barrel, two ends of the spring are respectively connected with the base and the guide core, a telescopic rod is connected with the lower end of the guide core, the lower end of the telescopic rod is rotatably connected with the round shaft, a torsional spring is sleeved on the telescopic rod, two ends of the torsional spring are respectively connected with the round shaft and the guide core, a driving rod and a clamping block are fixedly arranged on the round shaft, an inclined guide hole corresponding to the driving rod is formed in the guide core, a U-shaped clamping hole matched with the clamping block is formed in, and the upper cover and the base are respectively provided with a first guide plate and a second guide plate which are matched with the highlight mirror surface guide column.

Preferably, the base is provided with a first clamping plate and a second clamping plate.

Preferably, the guide core both sides be provided with the guide block, the base is provided with the guide rail, the guide block matches with the guide rail.

Compared with the prior art, the utility model provides a two spring type high life optical axis buttons possesses following beneficial effect:

1. the double-spring type long-life optical axis key enables the guide core to move downwards by pressing, the guide core firstly drives the round shaft to move downwards for a certain distance along the shaft barrel, when the guide core moves to a certain distance, the clamping block is pressed against the bayonet on the upper side of the U-shaped clamping hole, at the moment, the circular shaft cannot move downwards under the action of the U-shaped clamping hole, when the guide core is continuously pressed to move downwards, because the circular shaft can not move downwards and the guide core moves downwards, the driving rod is driven under the action of the inclined guide hole and drives the circular shaft to rotate, when the circular shaft rotates a certain angle, the circular shaft falls into the U-shaped long groove of the U-shaped clamping hole, so that the circular shaft moves downwards again to cut off the light path, under the action of the torsion spring, the driving rod and the clamping block, when the circular shaft moves downwards again, obvious touch feeling is generated, meanwhile, the touch feeling of the device can be increased under the action of the double springs, and the service life of the whole device is prolonged compared with that of one spring.

2. This two spring type high life optical axis buttons is equipped with highlight mirror surface guide post on leading the core, is equipped with first deflector and the second deflector that matches with highlight mirror surface guide post on upper cover and the base respectively, guarantees to lead the core full stroke direction, improves its direction precision.

Drawings

Fig. 1 is a schematic structural view of a dual-spring type long-life optical axis key provided by the present invention;

fig. 2 is an exploded schematic view of a dual-spring type long-life optical axis key according to the present invention;

fig. 3 is a schematic view of a circular shaft structure of a dual-spring type long-life optical axis key provided by the present invention;

fig. 4 is a schematic view of a connection structure between the guide core and the circular shaft of the dual-spring type long-life optical axis key of the present invention;

fig. 5 is one of schematic installation sectional structure diagrams of the dual-spring type long-life optical axis key of the present invention;

fig. 6 is one of the schematic installation sectional structure diagrams of the dual-spring type long-life optical axis key of the present invention;

fig. 7 is a schematic view of the installation structure of the dual-spring type long-life optical axis key of the present invention;

fig. 8 is a schematic view of the upper cover structure of the dual-spring type long-life optical axis key of the present invention;

fig. 9 is a schematic view of a base structure of a dual-spring type long-life optical axis key provided by the present invention;

fig. 10 is a schematic view of the lead core structure of the dual-spring type long-life optical axis key of the present invention;

fig. 11 is a schematic view of a non-pressed structure of a dual-spring type long-life optical axis key according to the present invention;

fig. 12 is a schematic view of a preliminary pressing structure of a dual-spring type long-life optical axis key according to the present invention;

fig. 13 is a schematic view of a secondary pressing structure of the dual-spring type long-life optical axis key of the present invention;

fig. 14 is a schematic diagram of the cutting and pressing structure of the dual-spring type long-life optical axis key of the present invention.

In the figure: 1. a base; 101. a first splint; 102. a second splint; 103. a second guide plate; 104. a second through hole; 2. an upper cover; 201. a first guide plate; 202. a first through hole; 3. A guide core; 301. a highlight mirror guide post; 302. an inclined guide hole; 4. a torsion spring; 5. a circular shaft; 501. a drive rod; 502. a clamping block; 6. a spring; 7. a telescopic rod; 8. a shaft cylinder; 801. u-shaped clamping holes.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-10, a double-spring type high-life optical axis key includes a base 1 and an upper cover 2 which are adapted to each other, a guide core 3 is slidably disposed on the upper cover 2, a first through hole 202 matched with the guide core 3 is formed in the upper cover 2, a second through hole 104 corresponding to the guide core 3 is formed in the base 1, a circular shaft 5 is disposed at the lower end inside the guide core 3, a shaft cylinder 8 corresponding to the circular shaft 5 is fixedly disposed on the base 1, a spring 6 is sleeved on the shaft cylinder 8, two ends of the spring 6 are respectively connected with the base 1 and the guide core 3, a telescopic rod 7 is connected to the lower end of the guide core 3, the lower end of the telescopic rod 7 is rotatably connected with the circular shaft 5, a torsion spring 4 is sleeved on the telescopic rod 7, two ends of the torsion spring 4 are respectively connected with the circular shaft 5 and the guide core 3, a driving rod 501 and a fixture block 502 are fixedly disposed on the circular shaft 5, an inclined guide hole 302 corresponding to the driving rod 501 is formed;

the guide core 3 is moved downwards by pressing, referring to fig. 11, the guide core 3 firstly drives the circular shaft 5 to move downwards for a certain distance along the shaft barrel 8, referring to fig. 12, when moving for a certain distance, the fixture block 502 abuts against the bayonet on the upper side of the U-shaped fixture hole 801, at this time, the circular shaft 5 cannot move downwards due to the action of the U-shaped fixture hole 801, referring to fig. 13, when continuing to press the guide core 3 to move downwards, since the circular shaft 5 cannot move downwards and the guide core 3 moves downwards, the driving rod 501 is driven under the action of the inclined guide hole 302, the driving rod 501 drives the circular shaft 5 to rotate, when the circular shaft 5 rotates for a certain angle, the circular shaft 5 falls into the U-shaped long groove of the U-shaped fixture hole 801, thereby realizing the circular shaft 5 to move downwards again, referring to fig. 14, the light path is cut off, under the action of the torsion spring 4, the driving rod 501 and the fixture block 502, when the circular shaft 5 moves downwards again, obvious, the overall service life is increased relative to a spring.

Referring to fig. 8-10, a highlight mirror guide column 301 is arranged on the guide core 3, a first guide plate 201 and a second guide plate 103 matched with the highlight mirror guide column 301 are respectively arranged on the upper cover 2 and the base 1, and the highlight mirror guide column 301 is arranged on the guide core 3; the scheme with the optimal arrangement structure is that cylindrical highlight mirror surface guide columns 301 are arranged at 4 corners of the guide core 3, and the first guide plate 201 and the second guide plate 103 which are matched with the highlight mirror surface guide columns 301 are respectively arranged on the upper cover 2 and the base 1, so that the full-stroke guide effect of the guide core 3 is ensured, and the guide precision is improved.

Referring to fig. 5-7, the base 1 is provided with a first clamping plate 101 and a second clamping plate 102 for facilitating the installation of the keys on the wall plate.

The two sides of the guide core 3 are provided with guide blocks, the base 1 is provided with guide rails, and the guide blocks are matched with the guide rails, so that the guide is convenient to further guide.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (3)

1. The double-spring type long-service-life optical axis key comprises a base (1) and an upper cover (2) which are matched, wherein a guide core (3) is arranged on the upper cover (2) in a sliding manner, a first through hole (202) matched with the guide core (3) is formed in the upper cover (2), a second through hole (104) corresponding to the guide core (3) is formed in the base (1), a round shaft (5) is arranged at the lower end inside the guide core (3), a shaft barrel (8) corresponding to the round shaft (5) is fixedly arranged on the base (1), a spring (6) is sleeved on the shaft barrel (8), two ends of the spring (6) are respectively connected with the base (1) and the guide core (3), the double-spring type long-service-life optical axis key is characterized in that a telescopic rod (7) is connected with the lower end of the guide core (3), the lower end of the telescopic rod (7) is rotationally connected with the round shaft (5), a torsion spring (4) is sleeved on the telescopic rod (7), two ends of the torsion spring (4) are respectively connected, fixed actuating lever (501) and fixture block (502) of being equipped with on circle axle (5), set up slope guide hole (302) that correspond with actuating lever (501) on leading core (3), set up U type card hole (801) that match with fixture block (502) on beam barrel (8), be equipped with highlight mirror surface guide post (301) on leading core (3), be equipped with first deflector (201) and second deflector (103) that match with highlight mirror surface guide post (301) on upper cover (2) and base (1) respectively.

2. The dual-spring type long-life optical axis key according to claim 1, wherein said base (1) is provided with a first clamping plate (101) and a second clamping plate (102).

3. The dual-spring type long-life optical axis key according to claim 1, wherein the guide core (3) is provided with guide blocks at both sides, the base (1) is provided with guide rails, and the guide blocks are matched with the guide rails.