CN203910611U

CN203910611U - Micro switch

Info

Publication number: CN203910611U
Application number: CN201420285393.0U
Authority: CN
Inventors: 尚小女
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-05-30
Filing date: 2014-05-30
Publication date: 2014-10-29
Anticipated expiration: 2024-05-30

Abstract

The utility model discloses a micro switch which comprises a casing body, a button and a connection contact. An elastic piece is arranged on one end at the upper part of the casing body. The elastic piece presses the button and is inclined above the casing body. The lower end of the button extends into the casing body. A movable elastic piece is inclinedly arranged in the casing body. One end of the movable elastic piece contacts the bottom of the button. The other end of the movable elastic piece contacts the connection contact. The connection contact comprises a normally closed contact and a normally open contact. A spring is arranged in the casing body below the elastic piece. The lower end of the spring is connected with a pull rod. A connection rod is arranged at the contact position of the bottom of the button and the movable elastic piece. The connecting rod is connected with the pull rod. According to the utility model, the elastic piece is touched, and at the same time the button is downward; the button presses the underneath movable elastic piece; an inclined face formed by the tail end of the movable elastic piece touches the normally closed contact; the movable elastic piece is pressed by the button; the connection rod pulls down the pull rod, and the spring is downward to generate a restoring force; the button can frequently switch on and off; and the micro switch has the advantages of simple structure and long service life.

Description

Sensitive switch

Technical field

The utility model relates to a kind of sensitive switch.

Background technology

Sensitive switch is to have small contact separation and fast actuation mechanism, the contact mechanism that carries out the moving action of switch by the stroke of regulation and the power of regulation, cover with shell, there is a kind of switch of drive rod its outside, but button, as direct touching person, easily weares and teares and damages, and shortens useful life, and frequently touching, cause shell fragment impaired.Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.

Utility model content

For addressing the above problem, the utility model provides a kind of connection to disconnect fast sensitive switch.

The technical scheme that the utility model provides:

Sensitive switch, comprise housing, button be connected contact, one end, described housing top is provided with shell fragment, described shell fragment was pressed button and was favoured housing top, described button lower end is stretched in housing, described housing is tilted is provided with a spring plate, described spring plate one end contacts with button bottom, the described spring plate other end be connected contact, described connection contact comprises normally closed interlock and normally open contact, in the housing of described shell fragment below, be provided with spring, described spring lower end is connected with pull bar, described button bottom is provided with connecting rod with spring plate contact position, this connecting rod is connected with pull bar.

Described button lower end is provided with boss.

Described connecting rod be shaped as L-type.

Form an inclined-plane with the spring plate end that is connected contact, the inclined angle alpha on this inclined-plane is 20-45 °.

The beneficial effects of the utility model: the utility model touching shell fragment, button down simultaneously, the spring plate of button extruding below, the inclined-plane that spring plate end forms touches normally closed interlock, and spring plate is pressed by button, connecting rod pulls pull bar downward, spring is therefore downward, produces a restoring force, can make button switch on and off frequently, simple in structure, long service life.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

1, housing, 2, button, 3, shell fragment, 4, spring plate, 5, normally closed interlock, 6, normally open contact, 7, spring, 8, pull bar, 9, connecting rod, 10, boss, 11, inclined-plane.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As shown in Figure 1, sensitive switch of the present utility model, comprise housing 1, button 2 be connected contact, housing 1 one end, top is provided with shell fragment 3, shell fragment 3 was pressed button 2 and was favoured housing 1 top, button 2 lower ends are stretched in housing 1, housing 1 is tilted is provided with a spring plate 4, spring plate 4 one end contact with button 2 bottoms, spring plate 4 other ends be connected contact, connect contact and comprise normally closed interlock 5 and normally open contact 6, in the housing 1 of shell fragment 3 belows, be provided with spring 7, spring 7 lower ends are connected with pull bar 8, button 2 bottoms and spring plate 4 contact positions are provided with connecting rod 9, connecting rod 9 be shaped as L-type, this connecting rod 9 is connected with pull bar 8.

Button 2 lower ends are provided with boss 10.Boss 10 has increased the contact area of button 2 with spring plate 4, has strengthened the power of pressing downwards.

Form an inclined-plane 11 with spring plate 4 ends that are connected contact, the inclined angle alpha on this inclined-plane 11 is 20-45 °.Connect contact lower surface and contact with normally open contact 6, the inclined-plane 11 that connects contact upper surface contacts with normally closed interlock 5.

The utility model touching shell fragment 3, button 2 is downward simultaneously, the spring plate 4 of button 2 extruding belows, the inclined-plane 11 that spring plate 4 ends form touches normally closed interlock, and spring plate 4 is pressed by button 2, connecting rod 9 pulls pull bar 8 downward, spring 7 is therefore downward, produces a restoring force, can make button switch on and off frequently, simple in structure, long service life.

Claims

1. sensitive switch, comprise housing, button be connected contact, it is characterized in that: one end, described housing top is provided with shell fragment, described shell fragment was pressed button and was favoured housing top, described button lower end is stretched in housing, described housing is tilted is provided with a spring plate, described spring plate one end contacts with button bottom, the described spring plate other end be connected contact, described connection contact comprises normally closed interlock and normally open contact, in the housing of described shell fragment below, be provided with spring, described spring lower end is connected with pull bar, described button bottom is provided with connecting rod with spring plate contact position, this connecting rod is connected with pull bar.

2. sensitive switch according to claim 1, is characterized in that: described button lower end is provided with boss.

3. sensitive switch according to claim 1, is characterized in that: described connecting rod be shaped as L-type.

4. sensitive switch according to claim 1, is characterized in that: form an inclined-plane with the spring plate end that is connected contact, the inclined angle alpha on this inclined-plane is 20-45 °.