CN2441222Y

CN2441222Y - Elastic contacting safety switch

Info

Publication number: CN2441222Y
Application number: CN 00210126
Authority: CN
Inventors: 马永成
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-31
Filing date: 2000-08-31
Publication date: 2001-08-01
Anticipated expiration: 2010-08-31

Abstract

The utility model discloses an electric switch which comprises a switch case, a panel and a button. The electric switch is characterized in that an elastic contact type contact point and a rotary button are adopted, wherein the elastic contact type contact point is composed of a contact, a spring and a conducting strip, the rotary button is composed of a bracket, a compression bar in a bracket sleeve, and a rotary core in the compression bar, and the rotary core can rotate by stepping in the compression bar. The utility model has the advantages of reasonable design, convenient operation, safety, reliability and long service life.

Description

The elastic contacting safety switch

The utility model belongs to a kind of electric switch.

Switch is the indispensable parts that are switched on or switched off power supply, to its quality requirement is: safe, reliable, durable, easy to use, particularly civilian electric light, appliance switch are because of its frequency of utilization height, so higher to its quality requirement.At present home-use, be installed in the mains switch on the wall, two-way pulling, its weak point is: button is subjected to force unbalance, need pull energetically, if things go on like this, in case spring force reduces to produce loose contact, even pull motionless button and malfunctioning, its poor reliability, life-span lack.

The purpose of this utility model is a kind of rational in infrastructure, easy to use, reliable, durable elastic contacting safety switch of design.

To achieve these goals, the utility model has adopted following technical scheme: comprise contact, panel and button in switch enclosure, the box, it is characterized in that: adopted elastic contacting contact and rotary knob; The elastic contacting contact is made up of the contact at switch enclosure inner bottom part elongated slot two ends, the back-moving spring at groove middle part and top sheet metal thereof; Rotary knob by telescopic support, penetrate cylindrical shape depression bar in the bracket sleeve tube, insert cylindrical shape in the depression bar and change core and insert the compression spring that changes the core lower end and form; Chute on the depression bar outer wall and change raised line on the outer wall of core bottom and be slidingly matched with raised line on the bracket sleeve tube inwall is meshed with ring gear on the commentaries on classics outer core along the ring gear of depression bar lower end; The compression spring that changes the core lower end can contact with sheet metal.

Because but the utility model has adopted the switch contact of elastic force press structure and the button of stepping rotation, make the contact stress balance, contact, and at the support of forming button, depression bar, be provided with chute accordingly on the inwall of commentaries on classics core or the outer wall, raised line, ring gear matches, so when pressing the press button lid, whenever press the commentaries on classics core and just turn over certain angle, so make change on the outer core raised line just with the bracket sleeve tube inwall on raised line, one second phase top once is harmonious, cause changeing core one and stretch dynamic pressure spring compartment of terrain, the area extrusion metal sheet that contracts, thereby it is logical to reach power supply, disconnected purpose, reasonable in design, easy accessibility, handling safety is reliable, and the life-span is long.

Be described further below in conjunction with drawings and Examples.

Fig. 1 is a profile schematic diagram of the present utility model;

Fig. 2 is the end view of Fig. 1;

Fig. 3 is a structural representation of the present utility model;

Fig. 4 is telescopic supporting structure schematic diagram;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is the structural representation of depression bar:

Fig. 7 is the vertical view of Fig. 6;

Fig. 8 is the structural representation that changes core;

Fig. 9 is the vertical view of Fig. 8.

As shown in the figure, switch enclosure 4 is housed below panel 2, bottom within it has microscler groove 1, the contact 5 of external wire is housed at the two ends of groove 1, be fixed with back-moving spring 7 at the middle part of groove 1, place elongated metal sheet 6 on spring 7, this sheet 6 can be compressed into groove 1 and contact simultaneously with two contacts 5; The telescopic support 10 of rotary knob is formed by " ten " bracing frame with perpendicular to the sleeve at its center, and in sleeve on the two opposite side walls, along tube length two raised lines 13 are arranged respectively, raised line 13 lower ends are the inclined plane; Depression bar 11 is columnar, and its underpart external diameter is big, and relative on its lateral wall respectively have two chutes 14, and there is ring gear 16 bottom, can establish 8 teeth; Changeing core 12 is the cylindrical shape of lower ending opening, its underpart external diameter is big, in the upper end of major diameter part, be provided with ring gear 15 along circumference, ring gear 15 crown the same side respectively be provided with raised line 9 vertically, the inclined-plane of its upper end and the inclined-plane of ring gear 15 teeth match, and ring gear 15 generally can be 4 teeth; The tooth pitch that changes ring gear 15 on core 12 lateral surfaces is 2 times of depression bar 11 lower end ring gears 16 tooth pitches, and the two is meshed.

By above-mentioned design each parts is assembled, earlier contact 5 is fixed on the two ends of box 4 kerves 1, pack into spring 7 and sheet metal 6; The installation of rotary knob, be that depression bar 11 is inserted in the sleeve of support 10, raised line 13 in the tube is matched with the chute 14 of depression bar 11 lateral surfaces, to change core 12 then inserts in the depression bar 11, back-moving spring 7 is inserted in core 12 lower ends, again rotary knob is put into box 4, box 4 is crimped on panel 2, depression bar 11 upper ends peaces button lid 3 the appearance of Fig. 1, Fig. 2.During work, hand is pressed button lid 3, depression bar 11 and commentaries on classics core 12 move down simultaneously, after letting go, because spring 7,8 upper elasticity makes depression bar, move with changeing on the core 12, this moment, depression bar 11 can be free to slide in support 10 sleeves, but when raised line inclined-plane, 9 upper end on changeing core 12 outer walls and the inclined-plane, raised line 13 lower end in support 10 sleeves offset, because along the slip on inclined-plane, change core 12 just relative depression bars 11 and turn over an angle, promptly depression bar 11 turns over the angle of a tooth, so because the ring gear 16 of depression bar 11 lower ends is 8 teeth is to turn over miter angle relatively, this moment raised line 9 just with support 10 sleeves in another raised line 13 offset, make change core 12 can not on move, spring 8 is pressed in energized on the sheet metal 6, in like manner, covered 3 o'clock by press button again, change on the core 12 and move, its raised line 9 again with support 10 sleeves in a raised line 13 offset, depression bar 11 turns over a tooth relatively, make raised line 9 and raised line 13 not to offset, change core 12 with regard in indentation support 10 sleeves, spring 8 can not extrusion metal sheet 6, the contact disconnects, and cuts off the electricity supply.

Claims

1, a kind of elastic contacting safety switch, comprise contact (5), panel (2) and button in switch enclosure (4), the box, it is characterized in that having adopted elastic contacting contact and rotary knob, the elastic contacting contact is made up of the contact (5) at switch enclosure (4) inner bottom part elongated slot (1) two ends, the back-moving spring (7) at groove (1) middle part and top sheet metal (6) thereof; Rotary knob by telescopic support (10), penetrate cylindrical shape depression bar (11) in support (10) sleeve, insert cylindrical shape in the depression bar (11) and change core (12) and insert the compression spring (8) that changes core (12) lower end and form; Chute (14) on depression bar (11) outer wall and change raised line (9) on the outer wall of core (12) bottom and be slidingly matched with raised line (13) on support (10) sleeve lining is meshed with ring gear (15) on the commentaries on classics outer core along the ring gear (16) of depression bar (11) lower end; The compression spring (8) that changes core (12) lower end can contact with sheet metal (6).

2, according to the described switch of claim 1, it is characterized in that telescopic support (10) forms by " ten " bracing frame with perpendicular to the sleeve at its center, in sleeve on the two opposite side walls, along tube length two raised lines (13) are arranged respectively, raised line (13) lower end is the inclined plane.

3, according to the described switch of claim 1, it is characterized in that depression bar (11) for columnar, its underpart external diameter is big, and relative on its lateral wall respectively have two chutes (14), and there is ring gear (16) lower end.

4, according to the described switch of claim 1, it is characterized in that changeing core (12) and be the cylindrical shape of lower ending opening, its underpart external diameter is big, in the upper end of major diameter part, be provided with ring gear (15) along circumference, ring gear (15) crown the same side respectively be provided with raised line (9) vertically, its upper end the inclined-plane and the inclined-plane of ring gear (15) tooth match.

5, according to the described switch of claim 1, the tooth pitch that it is characterized in that changeing ring gear (15) on core (12) lateral surface is 2 times of depression bar (11) lower end ring gear (16) tooth pitch.