CN201638715U

CN201638715U - Single-key self-lock switch

Info

Publication number: CN201638715U
Application number: CN2010201107003U
Authority: CN
Inventors: 张建挺
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-09
Filing date: 2010-02-09
Publication date: 2010-11-17
Anticipated expiration: 2020-02-09

Abstract

A single-key self-lock switch comprises a shell, an installation rack, a button sheathed in the installation rack, a ratchet wheel sheathed in the button, a spring sheathed in the ratchet wheel, a movable contact piece and a static contact piece, wherein the installation rack is at the upper part of the shell and tends to one side, thus leading the spring to be directly pressed above a movable contact point on the movable contact piece, and the static contact point of the static contact piece is under the movable contact point; the movable contact piece is bended, and the lower short bended part below thereof is clamped in one clamping groove at one side in the shell, while the upper movable part is under an inclined state when being disengaged from contact and a limiting rib is arranged above the movable part so as to limit the inclined state of the movable part of the movable contact piece; and the static contact piece is flat-plate-shaped and horizontally arranged below the movable contact piece, and the static contact point thereon is under the movable contact point. As the single-key self-lock switch is installed eccentrically, the volume thereof is smaller; and the spring is directly pressed above the movable contact point, the needed pressure is small and the contact between the movable contact point and the static contact point is more reliable.

Description

The singly-bound self-lock switch

Technical field

The utility model relates to a kind of appliance switch, particularly a kind of singly-bound self-lock switch.

Background technology

The singly-bound self-lock switch is a kind of mains switch commonly used, common singly-bound self-lock switch, button is in the middle part of switch housing, its inner spring is pressed in the middle part of movable contact spring, this structure needs bigger volume, and, need bigger spring pressure for guaranteeing the reliable contact between moving contact and the fixed contact.So this singly-bound self-lock switch volume is big, be easier to damage, fall short of useful life.

The utility model content

For remedying above-mentioned deficiency, the utility model provides a kind of small and exquisite, singly-bound self-lock switch that spring directly is pressed in the moving contact top.

The utility model singly-bound self-lock switch, comprise shell, installing rack, be enclosed within button in the installing rack, be enclosed within ratchet in the button, be enclosed within spring, movable contact spring and static contact in the ratchet, wherein installing rack is in the amesiality position of shell upper, make spring directly be pressed in the moving contact top on the movable contact spring, the fixed contact of static contact is under the moving contact.

Movable contact spring is a bending shape, and the short bending of the level of its underpart is stuck in the draw-in groove of a side in the shell, and the top movable part is heeling condition when disengaging, and its top is provided with spacing muscle, with the heeling condition of restriction movable contact spring movable part.

Static contact is a writing board shape, horizontal setting below movable contact spring, the fixed contact on it be in moving contact under.

The utility model singly-bound self-lock switch, because eccentric the installation, volume is smaller and more exquisite; Spring directly is pressed in the moving contact top, and required pressure is little, and quiet moving contact contact is more reliable.

Description of drawings

Fig. 1 is the exploded view of the utility model singly-bound self-lock switch;

Fig. 2 is the exploded view 2 of the utility model singly-bound self-lock switch.

Embodiment

Below in conjunction with embodiment the utility model singly-bound self-lock switch is done more detailed explanation.

Fig. 1 is the exploded view of the utility model singly-bound self-lock switch, and Fig. 2 is incomplete decomposing figure.

The utility model singly-bound self-lock switch comprises shell 1, installing rack 9, is enclosed within button 8 in the installing rack 9, is enclosed within ratchet 7 in the button 8, is enclosed within spring 6, movable contact spring 4 and static contact 3 in the ratchet 7.

Installing rack 9 is in amesiality position, shell 1 top, realizes installing by being connected with installing hole 2 on the shell 1; Eccentric installing rack 9 makes spring 6 directly be pressed on the location protruding 14 of moving contact 12 tops on the movable contact spring 4, and the fixed contact 13 of static contact 3 is under the moving contact 12.

Movable contact spring 4 is a bending shape, the short bending of the level of its underpart is stuck in the draw-in groove 11 of a side in the shell 1, the top movable part is heeling condition when disengaging, its top is provided with spacing muscle 10, heeling condition with restriction movable contact spring movable part prevents that the reference column on it from deviating from spring 6 (see figure 2)s.

Static contact 3 is a writing board shape, horizontal setting below movable contact spring 4, the fixed contact 13 on it be in moving contact 12 under.

Claims

1. singly-bound self-lock switch, comprise shell, installing rack, be enclosed within button in the installing rack, be enclosed within ratchet in the button, be enclosed within spring, movable contact spring and static contact in the ratchet, it is characterized in that: installing rack is in the amesiality position of shell upper, make spring directly be pressed in the moving contact top on the movable contact spring, the fixed contact of static contact is under the moving contact.

2. singly-bound self-lock switch according to claim 1, it is characterized in that: described movable contact spring is a bending shape, the short bending of the level of its underpart is stuck in the draw-in groove of a side in the shell, the top movable part is heeling condition when disengaging, its top is provided with spacing muscle, with the heeling condition of restriction movable contact spring movable part.

3. singly-bound self-lock switch according to claim 2 is characterized in that: described static contact is a writing board shape, horizontal setting below movable contact spring, the fixed contact on it be in moving contact under.