CN210489457U

CN210489457U - High-power key switch

Info

Publication number: CN210489457U
Application number: CN201921358889.5U
Authority: CN
Inventors: 栾润玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-05-08
Anticipated expiration: 2029-08-20

Abstract

The utility model relates to a high-power key switch, which comprises a microswitch and a base, wherein the base of the base is provided with a mounting hole, at least two guide grooves and inner teeth between the guide grooves are uniformly distributed in the mounting hole, the top of each inner tooth is provided with a locking groove, a hook seat at one end of a press plate is clamped on two clamping seats, and a press part of the press plate corresponds to a push rod on the microswitch; the guide lugs uniformly distributed on the upper part of the periphery of the button are arranged in the corresponding guide grooves of the mounting hole and can axially move; at least two direction sand grips of pivot periphery upper portion equipartition, the guiding axle of pivot install in the guiding hole in the button and can button axial displacement and rotation relatively, the spring passes and presses the board and pushes up respectively on micro-gap switch and pivot, and epaxial direction sand grip bottom of changeing sets up on the locking groove of internal tooth, and the pivot is stretched out and is made to press the push rod of pressing the splenium push switch of board. The utility model discloses micro-gap switch's application range can be widened, convenient operation, and reliable operation can control high-power domestic appliance break-make.

Description

High-power key switch

Technical Field

The utility model relates to a high-power key switch belongs to domestic appliance control switch technical field.

Background

The micro switch has a minute contact gap and a snap action mechanism, and a contact mechanism performs a switching snap action with a predetermined stroke and a predetermined force. The micro switch has the advantages of small contact distance, short action stroke, small pressing power, quick on-off and small volume, and is convenient for mounting household appliances. The common microswitch is arranged on a main machine, and controls to disconnect a power supply or an external circuit because the weight of the main machine disappears when the main machine is inclined or moves, so that the protection effect on an electric appliance is achieved, and the application place of the microswitch is limited.

Disclosure of Invention

The utility model aims at providing a can widen micro-gap switch's application range, convenient operation, the high-power key switch of high-power domestic appliance break-make can be controlled to the reliable operation.

The utility model discloses a technical scheme who reaches above-mentioned purpose is: a high-power key switch comprises a microswitch and a base, wherein the microswitch is arranged on the base and is used for controlling the on-off of a power supply or a circuit; the method is characterized in that: also comprises a button, a rotating shaft, a pressing plate and a spring,

the base is U-shaped, a mounting hole is formed in the base of the base, at least two guide grooves and inner teeth among the guide grooves are uniformly distributed in the mounting hole, a locking groove is formed in the top of each inner tooth, a ring table for limiting a button is arranged at the bottom of the mounting hole, a protruding clamping seat for limiting a pressing plate is arranged on one side of the inner wall of each of two side plates of the base, a hook seat at one end of the pressing plate is clamped on the two clamping seats, and a pressing part of the pressing plate corresponds to a push rod on the micro switch;

the guide lugs uniformly distributed on the upper part of the periphery of the button are arranged in the corresponding guide grooves of the mounting hole and can axially move; the rotating shaft comprises at least two guide raised lines uniformly distributed on the upper part of the periphery and guide shafts arranged on the lower parts of the guide raised lines, the guide shafts are arranged in guide holes in the button and can axially move and rotate relative to the button, the spring penetrates through the pressing plate, two ends of the spring are respectively propped against the microswitch and the rotating shaft, the guide raised lines on the rotating shaft are arranged in guide grooves of the mounting holes, the rotating shaft does not push the pressing plate, and the pressing parts on the pressing plate are separated from a push rod of the microswitch; the bottom of the guide convex strip on the rotating shaft is arranged on the locking groove of the inner teeth, and the rotating shaft extends out of the push rod which enables the pressing part of the pressing plate to push the microswitch.

The utility model adopts the high-power microswitch of the prior mature technology, the microswitch is arranged on the base, the base is provided with a guide groove which axially limits the button and the rotating shaft at the mounting hole of the base, and the locking groove is arranged at the top of the inner tooth between the guide grooves, therefore, the button can only axially move in the mounting hole of the base, at least two guide convex strips which are uniformly distributed at the upper part of the periphery of the rotating shaft are matched with the guide groove, the operating button drives the guide convex strips to axially move together, when the guide convex strips on the rotating shaft cross the high points of the locking groove or the guide groove, under the action of the spring, the rotating shaft rotates a certain angle relative to the base, the guide convex strips are sequentially switched between the guide groove and the locking groove, when the guide convex strips of the rotating shaft are positioned in each guide groove, the rotating shaft is positioned at a low position under the action of the spring without, when the bottom of the guide convex strip of the rotating shaft is arranged in the locking groove, the rotating shaft is locked by the locking groove and cannot rotate and move axially, the rotating shaft extends out of the push rod which enables the pressing part of the pressing plate to push the microswitch, and the microswitch is switched on at the moment, so that the on-off of a circuit or a power supply can be controlled. The utility model discloses an operating button makes pivot active control micro-gap switch's break-make and can lock, makes micro-gap switch can regard as the key switch effect, and convenient operation keeps micro-gap switch's transient nature, and micro-gap switch's application range can be widened to the reliable operation, can be used to high-power domestic appliance, like the control of power and circuit break-make such as TV set, air conditioner, high-power heater.

Drawings

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is an explosion structure diagram of the high-power key switch of the present invention.

Fig. 2 is a schematic structural diagram of the high-power key switch of the present invention.

Fig. 3 is a schematic structural diagram of the base of the present invention.

Fig. 4 is a schematic top view of the structure of fig. 3.

Fig. 5 is a schematic structural diagram of the high-power key switch of the present invention when the circuit is disconnected.

Fig. 6 is a schematic structural diagram of the high-power key switch of the present invention when the circuit is turned on.

Wherein: 1-microswitch, 1-static contact, 1-2-elastic sheet, 1-3-push rod, 1-4-movable contact, 2-spring, 3-pressing plate, 3-1-pressing part, 3-2-through hole, 3-hook seat, 4-rotating shaft, 4-1-guiding convex strip, 4-2-claw, 4-3-guiding shaft, 4-anti-dropping lug, 4-5-vertical groove, 5-button, 5-1-end tooth, 5-2-guiding lug, 5-3-guiding hole, 5-4-limiting hole, 6-base, 6-1-side plate, 6-2-base, 6-3-mounting hole, 6-4-internal tooth, 6-5-connecting part, 6-locking groove, 6-7-guiding groove, 6-8-clamping seat, 6-9-inclined lug, 6-10-middle guide groove and 7-screw.

Detailed Description

Fig. 1 ~ 6 show, the utility model discloses high-power key switch, including micro-gap switch 1 and base 6, micro-gap switch 1 installs on base 6 and is used for the break-make of control power or circuit, the utility model discloses a micro-gap switch 1 adopts current high-power micro-gap switch 1, can be used to high-power domestic appliance and use.

As shown in FIGS. 1-6, the high-power key switch of the present invention further comprises a button 5, a shaft 4, a pressing plate 3 and a spring 2. The utility model discloses a base 6 is the U-shaped, can fix micro-gap switch 1 in the U-shaped inslot of base 6. As shown in the figures 1-6, the base 6-2 of the base 6 of the utility model is provided with a mounting hole 6-3, at least two guide grooves 6-7 and internal teeth 6-4 between the two guide grooves 6-7 are uniformly distributed in the mounting hole 6-3, 3-6 guide grooves 6-7 can be arranged, the top of each internal tooth 6-4 is provided with a locking groove 6-6, the position of the rotating shaft 4 is locked through the locking grooves 6-6 and the guide grooves 6-7, and the rotating shaft 4 is used for controlling the operation of the pressing plate 3.

As shown in figures 1, 3 and 4, the locking groove 6-6 at the top of the internal tooth 6-4 of the present invention comprises an inclined plane which is communicated with the guide groove 6-7 at one side and is inclined downwards and a stop block which is communicated with the guide groove 6-7 at the other side, the rotating shaft 4 entering the locking groove 6-6 is limited and locked by the stop block, and after the guide convex strip 4-1 of the rotating shaft 4 passes the stop block of the locking groove 6-6, the rotating shaft 4 rotates by a certain angle to enable each guide convex strip 4-1 to enter the corresponding guide groove 6-7, the position of the rotating shaft 4 is limited and locked, and when the guide convex strip 4-1 of the rotating shaft 4 passes the high position of the guide groove 6-7, the rotating shaft 4 enters the locking groove 6-6. The utility model discloses in order to further improve the operating stability of button 5, be equipped with the middle guide way 6-10 that matches with guide lug 5-2 on the button 5 on the internal tooth 6-4 of base 6, guide lug 5-2 on the button 5 sets up and carries out axial displacement in guide way 6-7 and middle guide way 6-10 of base 6.

As shown in FIGS. 3-6, the bottom of the mounting hole 6-3 of the present invention is provided with a ring platform for limiting the button 5, so as to prevent the button 5 from falling off during the operation. As shown in figures 1 and 3-6, the base 6 of the present invention is provided with a protruding clamping seat 6-8 for limiting the pressing plate 3 on one side of the inner wall of the two side plates 6-1, a hook seat 3-3 at one end of the pressing plate 3 is clamped on the clamping grooves of the two clamping seats 6-8, a pressing part 3-1 of the pressing plate 3 corresponds to a push rod 1-3 on the micro switch 1, and the push rod 1-3 on the micro switch 1 is controlled to move by the pressing part 3-1 of the pressing plate 3. As shown in the figures 1-6, the two side plates 6-1 of the base 6 of the present invention are provided with the inclined convex blocks 6-9 for limiting the micro switch 1 on the upper portion of the convex clamping seat 6-8, so that the micro switch 1 after being installed can not move. As shown in figures 1-6, the utility model discloses the upper portion of 6 both sides boards 6-1 of base corresponds establishes through-hole and the screw hole that uses screw 7 to pass through, and screw 7 passes through the through-hole on the base 6 and the via hole on the micro-gap switch 1 and connects soon on the screw hole. As shown in figures 1-3, the base 6-2 of the base 6 of the present invention has a connecting portion 6-5 connected to the host, and the connecting portion 6-5 has an external thread and is conveniently connected to the host through the connecting portion 6-5.

As shown in figures 1, 2, 5 and 6, the guiding lug 5-2 uniformly distributed on the upper part of the periphery of the button 5 of the utility model is arranged on the guiding groove 6-7 corresponding to the mounting hole 6-3 and can move axially, the rotating shaft 4 is operated by operating the button 5, and then the pressing plate 3 is controlled to operate.

As shown in figures 1, 2, 5 and 6, the rotating shaft 4 of the utility model comprises at least two guide convex strips 4-1 evenly distributed on the upper part of the periphery and a guide shaft 4-3 arranged on the lower part of the guide convex strips 4-1, the number of the guide convex strips 4-1 can be 3-6, the guide convex strips 4-1 on the rotating shaft 4 are matched with the guide grooves 6-7 in the mounting holes 6-3, so that the guide convex strips 4-1 move axially in the guide grooves 6-7, and the guide shaft 4-3 is arranged in the guide holes 5-3 in the button 5 and can move and rotate axially relative to the button 5.

As shown in figures 1, 5 and 6, the top of the button 5 of the present invention has an end tooth 5-1, the end tooth 5-1 is triangular, the bottom of the guiding protrusion 4-1 on the rotating shaft 4 has a claw 4-2 matching with the tooth space of the end tooth 5-1, the claw 4-2 at the bottom of the guiding protrusion 4-1 is opposite to the end tooth 5-1 and the locking groove 6-6 of the button 5, when the button 5 is operated, the end tooth 5-1 on the button 5 is connected to the claw 4-2 at the bottom of the guiding protrusion 4-1, and the synchronous axial movement of the button 5 is ensured during the operation.

As shown in figures 5 and 6, the utility model can not only facilitate the guide shaft 4-3 to move axially in the guide hole 5-3 of the button 5, but also prevent the rotating shaft 4 from falling off, the lower part of the rotating shaft 4 in the guide shaft 4-3 is provided with a vertical groove 4-5 which can deform the guide shaft 4-3, the lower parts of the two sides of the vertical groove 4-5 of the guide shaft 4-3 are provided with anti-falling lugs 4-4, the lower part of the guide hole 5-3 of the button 5 is provided with a spacing hole 5-4 with a diameter larger than that of the guide hole 5-3, and the anti-falling lugs 4-4 on the rotating shaft 4 are arranged in the spacing hole 5-4 of the button 5 and are axially limited by a spacing ring platform.

See fig. 1, 2, 5, 6 and show, the utility model discloses spring 2 passes according to board 3, is equipped with spring 2 on pressing board 3 and passes through-hole 3-2, and the 2 both ends of spring push up respectively on micro-gap switch 1 and pivot 4, the utility model discloses there is the spring seat hole on the 4 tops of pivot, and spring 2 sets up on the spring seat hole, makes spring 2's elasticity act on pivot 4 all the time, has both guaranteed the balanced rotation of pivot, makes pivot 4 after the rotation can not the axial float again.

As shown in fig. 5 and 6, the guiding convex strip 4-1 on the rotating shaft 4 of the utility model is arranged in the guiding groove 6-7 of the mounting hole 6-3, the rotating shaft 4 does not push the pressing plate 3, and the pressing part 3-1 on the pressing plate 3 is separated from the push rod 1-3 of the micro switch 1; the bottom of a guide convex strip 4-1 on the rotating shaft 4 is arranged on a locking groove 6-6 of the inner tooth 6-4, and the rotating shaft 4 extends out and pushes the pressing plate 3 to enable the pressing part 3-1 to push and lock the push rod 1-3 of the microswitch 1.

As shown in figure 5, when the guiding convex strip 4-1 on the rotating shaft 4 is arranged in the guiding groove 6-7 of the mounting hole 6-3, the spring 2 pushes the rotating shaft 4 downwards, at this time, the rotating shaft 4 is positioned at a low position and cannot push the pressing plate 3 to press the push rod 1-3 on the microswitch 1, the moving contact 1-4 of the microswitch 1 is not contacted with the fixed contact 1-1, and the circuit is not conducted. As shown in figure 6, the button 5 is pressed to enable the button 5 to push the rotating shaft 4 upwards, when the tooth claw 4-2 at the bottom of the guide convex strip 4-1 on the rotating shaft 4 passes through the high position of the guide groove 6-7, enters the locking groove 6-6 under the action of the spring 2 and is limited by the stop block and cannot rotate, the rotating shaft 4 is located at the high position to push the pressing plate 3, the pressing part 3-1 on the pressing plate 3 presses down the push rod 1-3 on the microswitch 1, the push rod 1-3 pushes the elastic sheet 1-2 in the microswitch 1, and then the movable contact 1-4 is driven to be in contact with the static contact 1-1, so that circuit conduction is realized. And pressing the button 5 again to enable the button 5 to push the rotating shaft 4 upwards, when the claw 4-2 at the bottom of the guide convex strip 4-1 on the rotating shaft 4 passes through the stop block high position of the locking groove 6-6, the guide convex strip 4-1 on the rotating shaft 4 enters the guide groove 6-7 to be limited and can not rotate under the action of the spring 2, at the moment, the rotating shaft 4 moves downwards to the low position, and the pressing part 3-1 on the pressing plate 3 is separated from the push rod 1-3 of the microswitch 1, so that the circulation is realized.

Claims

1. A high-power key switch comprises a microswitch (1) and a base (6), wherein the microswitch (1) is arranged on the base (6) and is used for controlling the on-off of a power supply or a circuit; the method is characterized in that: also comprises a button (5), a rotating shaft (4), a pressing plate (3) and a spring (2),

the base (6) is U-shaped, a mounting hole (6-3) is formed in a base (6-2) of the base (6), at least two guide grooves (6-7) and inner teeth (6-4) among the guide grooves (6-7) are uniformly distributed in the mounting hole (6-3), a locking groove (6-6) is formed in the top of each inner tooth (6-4), a ring table for limiting a button (5) is arranged at the bottom of the mounting hole (6-3), a protruding clamping seat (6-8) for limiting a press plate (3) is arranged on one side of the inner wall of each of two side plates (6-1) of the base (6), a hook seat (3-3) at one end of the press plate (3) is clamped on the two clamping seats (6-8), and a pressing part (3-1) of the press plate (3) corresponds to a push rod (1-3) on the microswitch (1);

the guide lugs (5-2) uniformly distributed on the upper part of the periphery of the button (5) are arranged in the corresponding guide grooves (6-7) of the mounting holes (6-3) and can axially move; the rotary shaft (4) comprises at least two guide convex strips (4-1) uniformly distributed on the upper part of the periphery and guide shafts (4-3) arranged on the lower parts of the guide convex strips (4-1), the guide shafts (4-3) are arranged in guide holes (5-3) in the button (5) and can axially move and rotate relative to the button (5), the spring (2) penetrates through the pressing plate (3), two ends of the spring (2) are respectively propped against the microswitch (1) and the rotary shaft (4), the guide convex strips (4-1) on the rotary shaft (4) are arranged in guide grooves (6-7) of the mounting holes (6-3), the rotary shaft (4) does not push the pressing plate (3), and the pressing parts (3-1) on the pressing plate (3) are separated from push rods (1-3) of the microswitch (1); the bottom of a guide convex strip (4-1) on the rotating shaft (4) is arranged on a locking groove (6-6) of the inner tooth (6-4), and the rotating shaft (4) extends out to enable a pressing part (3-1) of the pressing plate (3) to push a push rod (1-3) of the microswitch (1).

2. The high power key switch of claim 1, wherein: the locking groove (6-6) at the top of the inner tooth (6-4) comprises an inclined surface which is communicated with the guide groove (6-7) at one side and inclines downwards and a stop block which is communicated with the guide groove (6-7) at the other side.

3. The high power key switch according to claim 1 or 2, wherein: and the inner teeth (6-4) of the base (6) are provided with middle guide grooves (6-10) matched with the guide lugs (5-2) on the button (5).

4. The high power key switch according to claim 1 or 2, wherein: the base (6-2) of the base (6) is provided with a connecting part (6-5) connected to the host, and the connecting part (6-5) is provided with an external thread.

5. The high power key switch according to claim 1 or 2, wherein: oblique protruding blocks (6-9) used for limiting the micro switch (1) are arranged on the upper portions of the clamping seats (6-8) of the two side plates (6-1) of the base (6), through holes and threaded holes through which screws (7) pass are correspondingly formed in the upper portions of the two side plates (6-1) of the base (6), and the screws (7) penetrate through the through holes in the base (6) and the through holes in the micro switch (1) and are screwed in the threaded holes.

6. The high power key switch of claim 1, wherein: the top of the button (5) is provided with an end tooth (5-1), and the bottom of the guide convex strip (4-1) on the rotating shaft (4) is provided with a tooth claw (4-2) matched with a tooth groove of the end tooth (5-1).

7. The high power key switch according to claim 1 or 6, wherein: the middle lower part of the rotating shaft (4) on the guide shaft (4-3) is provided with a vertical groove (4-5) which enables the guide shaft (4-3) to deform, the lower parts of the guide shaft (4-3) on two sides of the vertical groove (4-5) are provided with anti-falling lugs (4-4), the lower part of the guide hole (5-3) of the button (5) is provided with a limiting hole (5-4) with the diameter larger than that of the guide hole (5-3), and the anti-falling lugs (4-4) on the rotating shaft (4) are arranged in the limiting hole (5-4) of the button (5) and are axially limited by a limiting ring platform.

8. The high power key switch according to claim 1 or 6, wherein: a spring seat hole is formed in the top of the rotating shaft (4), and one end of the spring (2) is arranged in the spring seat hole.