CN213277902U

CN213277902U - Automatic reset knob switch

Info

Publication number: CN213277902U
Application number: CN202022714855.4U
Authority: CN
Inventors: 白伟; 倪辉; 林炳辉
Original assignee: Sichuan Changhong Precision Electronic Technology Co ltd; Sichan Ai Chance Technology Co ltd
Current assignee: Sichuan Changhong Precision Electronic Technology Co ltd; Sichan Ai Chance Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-05-25
Anticipated expiration: 2030-11-20

Abstract

The utility model discloses an automatic knob switch resets in electronic components field, including last casing and lower casing, it is connected for rotating with lower casing to go up the casing, be equipped with two mutual arrangement's first magnet on the inside wall of going up the casing, the middle part of casing is equipped with two second magnets corresponding with two first magnets respectively down, first magnet is the opposite magnetic pole each other with the face that second magnet is relative. The utility model has the advantages that: through set up two magnets on last casing and the lower casing respectively, utilize the magnetic force that magnet opposite poles attracted as the resilience force of knob, can not receive direction of rotation's restraint, nimble installation is used to this mode makes upper and lower casing float separately, and two are contactless, thereby avoid the wearing and tearing between the structure, promote its life.

Description

Automatic reset knob switch

Technical Field

The utility model relates to an electronic components field especially relates to an automatic reset knob switch.

Background

The automatic reset knob switch is a common small part in mechanical electronic equipment, realizes a certain function by rotating the knob, and the knob can be automatically reset after hands are loosened. At present, most of the reset structures are realized through knob springs, namely, the spring force is overcome during rotation, and the reset is realized under the action of the springs after hands are loosened. The structure has the defects that mutual abrasion among equipment is easily caused, the service life of the switch is influenced, most of the equipment can only rotate and reset towards one direction, and certain limitation is realized in use.

SUMMERY OF THE UTILITY MODEL

For overcoming the above-mentioned not enough that current automatic re-setting knob switch exists, the utility model aims to solve the technical problem that: an automatic reset knob switch is provided which can reduce wear and can be rotated and reset in two directions.

The utility model provides a technical scheme that its technical problem adopted is:

automatic reset knob switch, including last casing and lower casing, go up the casing and be connected for rotating with lower casing, be equipped with two first magnets of mutual disposition on the inside wall of going up the casing, the middle part of casing is equipped with two second magnets corresponding with two first magnets respectively down, first magnet is the opposite magnetic pole each other with the relative face of second magnet.

Further, the two opposite sides of the inner side wall of the upper shell are respectively provided with an upper mounting groove, and the first magnet is placed in the upper mounting groove.

Further, the middle of the lower shell is provided with a support frame, two opposite sides of the support frame are respectively provided with a lower mounting groove, and the second magnet is placed in the lower mounting grooves.

Further, two sides of the support frame of the lower shell, which are 90 degrees to the lower mounting groove, are respectively provided with a limiting boss, and the upper shell is limited by the contact of the upper mounting groove and the limiting boss in the rotating process.

Further, the bottom of the lower shell is provided with a Hall sensor, and the first magnet is just opposite to the Hall sensor when the upper shell rotates to the limiting position.

Further, the upper shell and the support frame of the lower shell are axially and rotationally connected through a rotating shaft.

Further, the upper end of the rotating shaft is fixedly connected with the upper shell, the lower end of the rotating shaft penetrates through the middle sleeve of the support frame and is in sliding connection with the support frame, the lower end of the rotating shaft is provided with a limiting gasket, the middle of the rotating shaft is provided with an elastic gasket, and the elastic gasket is abutted between the upper shell and the support frame.

The utility model has the advantages that: through set up two magnets on last casing and the lower casing respectively, utilize the magnetic force that magnet opposite poles attracted as the resilience force of knob, can not receive direction of rotation's restraint, nimble installation is used to this mode makes upper and lower casing float separately, and two are contactless, thereby avoid the wearing and tearing between the structure, promote its life.

Drawings

Fig. 1 is a top oblique view of the present invention.

Fig. 2 is a bottom oblique view of the present invention.

The marks in the figure are 1-upper shell, 2-lower shell, 3-first magnet, 4-second magnet, 5-rotating shaft, 6-limiting gasket, 7-elastic gasket, 11-upper mounting groove, 21-supporting frame, 22-lower mounting groove and 23-limiting boss.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses an automatic reset knob switch, including last casing 1 and lower casing 2, it is connected for rotating with casing 2 to go up casing 1, be equipped with two mutual first magnet 3 of mutual disposition on the inside wall of going up casing 1, the middle part of casing 2 is equipped with two second magnet 4 corresponding with two first magnet 3 respectively down, the face that first magnet 3 is relative with second magnet 4 is the opposite magnetic pole each other.

The utility model discloses a theory of operation is: under natural state, because

first magnet

3 and 4 dysmorphism of second magnet are inhaled mutually for go up casing 1 and casing 2 under and be in stable state, when rotating casing 1 or casing 2 down with the hand, first magnet 3 takes place the dislocation with second magnet 4, loosens the hand again this moment, goes up casing 1 and casing 2 and just can get back to first magnet 3 and the relative position of second magnet 4 under the magnetic force effect, thereby realizes knob switch's the reseing. Compare current rotary switch that resets that provides torsional force through the spring, this application can not receive the restraint of direction of rotation, turns to the right left all can to this mode makes upper and lower casing float separately, and two do not contact, thereby avoid wearing and tearing between the structure, promote its life.

When the magnet is specifically installed, in order to facilitate installation and positioning, two opposite sides of the inner side wall of the upper shell 1 are respectively provided with an upper installation groove 11, and the first magnet 3 is placed in the upper installation grooves 11; the middle part of the lower shell 2 is provided with a support frame 21, two opposite sides of the support frame 21 are respectively provided with a lower mounting groove 22, and the second magnet 4 is placed in the lower mounting groove 22. Set up the mounting groove and can play fine fixed and guard action to magnet.

To avoid the rotation interference, a space for the rotation of the upper housing 1 and the upper mounting groove 11 is provided between the inner wall of the lower housing 2 and the support frame 21. Meanwhile, as a common knob switch can meet the use requirement only by rotating 90 degrees, in order to avoid the transition of rotating the knob switch, two sides of the support frame 21 of the lower shell 2, which are 90 degrees with the lower mounting groove 22, are respectively provided with a limiting boss 23, and the upper shell 1 is in contact with the limiting bosses 23 through the upper mounting groove 11 to realize the limiting in the rotating process.

Because the utility model discloses a magnet provides the power that resets, has the removal of magnet in the use, so some functions that knob switch were aroused in the rotation of usable magnet specifically can lower casing 2's bottom sets up hall sensor, and first magnet 3 is just in time relative with hall sensor when last casing 1 rotated limiting position to arouse hall sensor work, realized electronic components's some functions with this.

For the installation limitation of the upper shell 1 and the lower shell 2, the upper shell and the lower shell can be sleeved in the radial direction for limitation, and a rotating shaft 5 is arranged between the support frames 21 of the upper shell 1 and the lower shell 2 in the axial direction for axial connection and rotational connection.

Further, 5 upper ends of pivot and 1 fixed connection of last casing, the lower extreme pass support frame 21 middle part sleeve and with support frame 21 sliding connection, 5 lower extremes of pivot are equipped with spacing gasket 6 and restrict pivot 5 and break away from support frame 21, are equipped with resilient pad 7 in 5 middle parts of pivot, resilient pad 7 supports between the top of last casing 1 bottom and support frame 21. Through setting up elastic gasket 7, can make upper housing 1 drive pivot 5 and do certain displacement in axial direction to the accessible presses upper housing 1 and arouses some functions of electronic components, and upper housing 1 also can realize restoring to the throne under elastic gasket 7's effect after the hand is loosened.

The utility model discloses at first through set up two magnets on upper housing and lower casing respectively, utilize the magnetic force that magnet opposite poles attract as the resilience force of knob, can not receive the restraint of direction of rotation, nimble installation is used to and this mode makes upper and lower casing float separately, two do not contact, thereby avoid the wearing and tearing between the structure, promote its life; secondly, the rotation of the magnet in the upper shell is matched with the work of the Hall sensor to realize certain functions of the electronic component; reuse the pivot to go up the casing and be connected with lower casing, also realize going up the pressing trigger function of casing with the help of the elastic gasket when improving structural stability. Therefore, the whole device has the dual functions of rotary reset and press reset at the same time, and has good practicability and application prospect.

Claims

1. Automatic knob switch resets, characterized by: including last casing (1) and lower casing (2), go up casing (1) and be connected for rotating with lower casing (2), be equipped with two first magnet (3) of mutual disposition on the inside wall of going up casing (1), the middle part of casing (2) is equipped with two second magnet (4) corresponding with two first magnet (3) respectively down, first magnet (3) are the opposite magnetic pole each other with the face that second magnet (4) are relative.

2. The automatic reset rotary switch of claim 1 wherein: go up relative both sides on the inside wall of casing (1) and respectively be equipped with one and go up mounting groove (11), first magnet (3) are placed in last mounting groove (11).

3. The automatic reset rotary switch of claim 2 wherein: lower casing (2) middle part is equipped with support frame (21), and relative both sides respectively are equipped with a lower mounting groove (22) on support frame (21), second magnet (4) are placed in lower mounting groove (22).

4. The automatic reset rotary switch of claim 3 wherein: the two sides of the support frame (21) of the lower shell (2) which are 90 degrees with the lower mounting groove (22) are respectively provided with a limiting boss (23), and the upper shell (1) is in contact with the limiting bosses (23) through the upper mounting groove (11) to realize limiting in the rotating process.

5. The automatic reset rotary switch of claim 4 wherein: the bottom of the lower shell (2) is provided with a Hall sensor, and the first magnet (3) is just opposite to the Hall sensor when the upper shell (1) rotates to a limiting position.

6. The automatic reset rotary switch as claimed in any one of claims 3, 4 or 5, wherein: the upper shell (1) and the support frame (21) of the lower shell (2) are axially connected and rotationally connected through a rotating shaft (5).

7. The automatic reset rotary switch of claim 6 wherein: pivot (5) upper end and last casing (1) fixed connection, the lower extreme pass support frame (21) middle part sleeve and with support frame (21) sliding connection, pivot (5) lower extreme is equipped with spacing gasket (6), and the middle part is equipped with elastic gasket (7), elastic gasket (7) support between last casing (1) and support frame (21).