CN208240545U - A kind of microswitch with long service life - Google Patents

Abstract

The utility model discloses a kind of microswitches with long service life, including switch, the switch surface is equipped with operating stick, the operating stick lower part is equipped with operating knob and operating knob is plugged on switch internal, the switch internal is equipped with drag hook and drag hook is connect with operating knob bottom, the drag hook side connects movable contact spring and movable contact spring top is equipped with spring, described movable contact spring one end top is equipped with normally closed feeler lever, described movable contact spring one end lower part is equipped with normally opened feeler lever, the switch top and bottom are all connected with fixed block and fixed block is fixedly connected by electric telescopic rod with normally opened feeler lever and normally closed feeler lever.The utility model ensure that the effect that microswitch uses, improve the service life of microswitch, it saves and needs strength by lower switch, increase the sensitivity that microswitch uses, stability when microswitch is fixed can be increased, the vibration for avoiding microswitch from generating when in use has an impact the use of microswitch.

Description

A kind of microswitch with long service life

Technical field

The utility model relates to field of switches, in particular to a kind of microswitch with long service life.

Background technique

Microswitch is that have small contact separation and snap-action mechanism, and it is dynamic to carry out switch with defined stroke and defined power The contact mechanism of work, is covered with shell, outside have a kind of switch of drive rod because contact spacing of its switch is smaller, Therefore named microswitch is called sensitive switch, also known as sensitive switch, snap switch.Press the high-speed switch actuated.For antitheft system Door switch etc. in system.

Existing microswitch when in use, due to opening and closing for a long time, causes the service life of microswitch It is limited, and will cause the loosening of operating stick when prolonged use, it is affected to microswitch sensitivity, presses microswitch When with closure microswitch, the vibration of microswitch will cause, shortage carries out reinforcing stabilization to it.For this purpose, it is proposed that a kind of Microswitch with long service life.

Utility model content

The main purpose of the utility model is to provide a kind of microswitch with long service life, which passes through outer The adjustable electric expansion pole length of switch is connect, so that movable contact spring be made more to step up with the contact of normally closed feeler lever and normally opened feeler lever It is close, it ensure that the effect that microswitch uses, improve the service life of microswitch, operating stick is adjusted by gripping block and is connected The firmness connect saves convenient for preferably operation and needs strength by lower switch, increases the sensitivity that microswitch uses, and leads to It crosses screw rod and is plugged in mounting hole and securing plate can be fixed, stability when microswitch is fixed can be increased, avoided micro- The vibration that dynamic switch generates when in use has an impact the use of microswitch, can effectively solve asking in background technique Topic.

To achieve the above object, the technical solution that the utility model is taken are as follows:

A kind of microswitch with long service life, including switch, the switch surface is equipped with operating stick, under the operating stick Portion is equipped with operating knob and operating knob is plugged on switch internal, and the switch internal is equipped with drag hook and drag hook and operating knob bottom connect It connecing, the drag hook side connects movable contact spring and movable contact spring top is equipped with spring, and described movable contact spring one end top is equipped with normally closed feeler lever, Described movable contact spring one end lower part is equipped with normally opened feeler lever, the switch top and bottom are all connected with fixed block and fixed block pass through it is electronic Telescopic rod is fixedly connected with normally opened feeler lever and normally closed feeler lever.

Further, the operating stick is connected with switch by movable block, passes through folder between the movable block and operating stick Tight block is fixedly connected.

Further, the switch external two sides are fixedly connected with securing plate, and the reinforcing plate surface is equipped with mounting hole.

Further, the switch bottom connects pin.

Compared with prior art, the utility model has the following beneficial effects:

1, a kind of microswitch with long service life, is adjusted electric expansion pole length by outside connected switch, to make The contact of movable contact spring and normally closed feeler lever and normally opened feeler lever is even closer, ensure that the effect that microswitch uses, improves The service life of microswitch.

2, the firmness of operating stick connection is adjusted by gripping block, is convenient for for a kind of microswitch with long service life Preferably operation saves and needs strength by lower switch, increases the sensitivity that microswitch uses,

3, a kind of microswitch with long service life, securing plate can be consolidated by being plugged in mounting hole by screw rod It is fixed, stability when microswitch is fixed can be increased, the vibration for avoiding microswitch from generating when in use makes microswitch With having an impact, guarantees a kind of microswitch using effect with long service life and utilization benefit, be suitble to be widely popularized.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of internal structure of microswitch with long service life of the utility model.

Fig. 2 is a kind of surface texture schematic diagram of microswitch with long service life of the utility model.

In figure: 1, switching；2, operating stick；3, movable contact spring；4, spring；5, operating knob；6, drag hook；7, pin；8, electronic to stretch Contracting bar；9, normally opened feeler lever；10, normally closed feeler lever；11, fixed block；12, securing plate；13, mounting hole；14, movable block；15, it clamps Block.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

As shown in Figs. 1-2, a kind of microswitch with long service life, including switch 1,1 surface of switch are equipped with operation Bar 2,2 lower part of operating stick is equipped with operating knob 5 and operating knob 5 is plugged on inside switch 1, and 1 inside of switch is equipped with drag hook 6 And drag hook 6 is connect with 5 bottom of operating knob, 6 side of drag hook connects movable contact spring 3 and 3 top of movable contact spring is equipped with spring 4, described 3 one end top of movable contact spring is equipped with normally closed feeler lever 10, and 3 one end lower part of movable contact spring is equipped with normally opened feeler lever 9,1 top of switch Fixed block 11 is all connected with bottom and fixed block 11 is fixedly connected by electric telescopic rod 8 with normally opened feeler lever 9 and normally closed feeler lever 10.

Wherein, the operating stick 2 is connect by movable block 14 with switch 1, is passed through between the movable block 14 and operating stick 2 Gripping block 15 is fixedly connected.

Wherein, 1 both sides external of switch is fixedly connected with securing plate 12, and 12 surface of securing plate is equipped with mounting hole 13.

Wherein, 1 bottom of switch connects pin 7.

It should be noted that the utility model is a kind of microswitch with long service life, when work, by 1 bottom of switch Pin 7 connect with electrical equipment, switch 1 is fixed, being plugged in mounting hole 13 by screw rod can be to securing plate 12 It is fixed, stability when microswitch is fixed can be increased, fine motion is opened in the vibration for avoiding microswitch from generating when in use The use of pass has an impact, and pushing operation bar 2, operating stick 2 moves downward extrusion operation button 5 and moves down, and drag hook 6 is driven to pull dynamic spring Piece 3 moves downward, and movable contact spring 3 and the contact of normally opened feeler lever 9 can be made to connect, and realizes the unlatching to switch 1, after unclamping operating stick 2, Spring 4 will drive movable contact spring 3 and automatically reset, and movable contact spring 3 is connect with the contact of normally closed feeler lever 10, is closed to switch 1, long Time is worked with microswitch, and abrasion can be generated to the contact of normally closed feeler lever 10 and normally opened feeler lever 9, adjustable by outside connected switch 8 length of section electric telescopic rod guarantees to keep movable contact spring 3 and the contact of normally closed feeler lever 10 and normally opened feeler lever 9 even closer The effect that microswitch uses, improves the service life of microswitch, can be to pressing when prolonged pushing operation bar 2 Connection between operating stick 2 and switch 1 generates loosening, and the firmness of the connection of operating stick 2 is adjusted by gripping block 15, convenient for more Good operation saves and needs strength by lower switch 1, increases the sensitivity that microswitch uses, guarantees a kind of service life The utilization benefit of long microswitch.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (4)

1. a kind of microswitch with long service life, including switch (1), it is characterised in that: switch (1) surface is equipped with operation Bar (2), operating stick (2) lower part is equipped with operating knob (5) and operating knob (5) is plugged on switch (1) inside, the switch (1) Inside is equipped with drag hook (6) and drag hook (6) is connect with operating knob (5) bottom, and drag hook (6) side connects movable contact spring (3) and dynamic Reed (3) top is equipped with spring (4), and movable contact spring (3) one end top is equipped with normally closed feeler lever (10), the movable contact spring (3) one It holds lower part to be equipped with normally opened feeler lever (9), is all connected with fixed block (11) at the top and bottom of the switch (1) and fixed block (11) passes through electricity Dynamic telescopic rod (8) are fixedly connected with normally opened feeler lever (9) and normally closed feeler lever (10).

2. a kind of microswitch with long service life according to claim 1, it is characterised in that: the operating stick (2) is logical It crosses movable block (14) to connect with switch (1), connect between the movable block (14) and operating stick (2) by the way that gripping block (15) are fixed It connects.

3. a kind of microswitch with long service life according to claim 1, it is characterised in that: the switch (1) is external Two sides are fixedly connected securing plate (12), and securing plate (12) surface is equipped with mounting hole (13).

4. a kind of microswitch with long service life according to claim 1, it is characterised in that: described switch (1) bottom It connects pin (7).