CN209249332U

CN209249332U - Knob switch

Info

Publication number: CN209249332U
Application number: CN201822067861.8U
Authority: CN
Inventors: 杜丽君
Original assignee: Yueqing Junle Mould Co Ltd
Current assignee: Yueqing Junle Mould Co Ltd
Priority date: 2018-12-11
Filing date: 2018-12-11
Publication date: 2019-08-13
Anticipated expiration: 2028-12-11

Abstract

The utility model discloses a kind of knob switch, manipulate static contact there are two setting on the bottom wall of chamber, moving contact component is equipped with above static contact, moving contact component includes the movable contact of elastic strip, one end of elastic strip is fixed on the inner wall of manipulation chamber, the other end tilts upwards towards stationary contact, revolving part includes switch block and conflict end, end and elastic strip is contradicted to connect far from one end of movable contact, the knob lid being slidably matched is covered on switch block, convex ribs there are two being set on the inner wall of knob lid, card slot is formed between two convex ribs, the outer surface of switch block is equipped with convex block, the surface of knob lid inner wall is equipped with limited block, the inner wall for manipulating chamber is equipped with annular convex edge, annular convex edge corresponds to elastic strip and manipulates the top of cavity wall junction equipped with notch one, the top of corresponding movable contact is equipped with notch two, pressure spring is equipped between knob lid and switch block.After improvement, switch can be effectively prevented and be misused, promotes security performance when using.

Description

Knob switch

Technical field

The utility model relates to switching technique fields, more specifically, it relates to a kind of knob switch.

Background technique

Different switches is required in many control panels carrys out the functions such as opening and closing, the adjusting of control circuit, switch Type is also classified into button-type and rotary-type two major classes, in rotary-type equipment control, two commonly used to control circuit Extremity, i.e. on and off two states, all output adjustment type circuits also use knob-style to control.Knob-style switch Control object is all important or accurate circuit link.Switch when in use, is easy do not touched, hit, scratched etc. unexpected Behavior causes switch to be turned on or close, not only results in the damage of equipment, and will cause loss to production, there is peace Full hidden danger.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide the rotations that one kind can prevent maloperation The formula of twisting switch.

To achieve the above object, the utility model provides following technical solution:

A kind of knob switch, including shell, shell is interior equipped with manipulation chamber, and the manipulation is strong interior equipped with revolving part, described It manipulates and is set on the bottom wall of chamber there are two static contact, the static contact top is equipped with moving contact component, and the moving contact component includes The movable contact of elastic strip, one end of the elastic strip are fixed on the inner wall of manipulation chamber, and the other end is towards stationary contact to updip Tiltedly, movable contact is located at elastic strip close on one end of static contact, the revolving part include switch block and contradict end, the conflicts end and Elastic strip is connected far from one end of movable contact, is covered with the knob lid being slidably matched, the inner wall of the knob lid on the switch block On set there are two convex ribs, card slot is formed between two convex ribs, the outer surface of the switch block is equipped with convex block, and the convex block is located adjacent to Contradicting can be embedded in card slot on the one end at end, and the surface of the knob lid close to manipulation cavity wall is equipped with limited block, described The inner wall for manipulating chamber is equipped with annular convex edge, and the annular convex edge corresponds to elastic strip and is equipped with the top for manipulating cavity wall junction The top of notch one, corresponding movable contact is equipped with notch two, and pressure spring is equipped between the knob lid and switch block.

The utility model is further arranged to: be additionally provided with bulge loop one on the outer surface of the switch block, the bulge loop one with it is convex Sliding area is formed between block, is additionally provided with bulge loop two on the inner wall of the knob lid, it is described when knob housing is located on switch block Bulge loop two are located in sliding area.

The utility model is further arranged to: the width of the card slot is greater than the width of convex block.

By using above-mentioned technical proposal, it is equipped with pressure spring between knob lid and switch block, by pressing knob lid, makes to turn After convex block on block is embedded card slot, knob lid could drive switch block to rotate, and play and connect dynamic touching component with static contact, realize The effect that circuit is connected.Pressing force after, pressure spring can reset knob lid, again turning knob lid just cannot to switch after It is continuous to be operated, maloperation can be effectively prevented, promote the security performance used.

Detailed description of the invention

Fig. 1 is the utility model structural exploded view；

Fig. 2 is the partial sectional view one of the utility model；

Fig. 3 is the partial sectional view two of the utility model.

1, shell；2, chamber is manipulated；20, annular convex edge；200, notch one；201, notch two；3, revolving part；30, switch block； 300, convex block；301, bulge loop one；302, sliding area；31, end is contradicted；32, knob lid；320, card slot；321, limited block； 322, Bulge loop two；33, pressure spring；4, static contact；5, moving contact component；50, elastic strip；51, movable contact.

Specific embodiment

The utility model knob switch embodiment is described further referring to figs. 1 to Fig. 3.

A kind of knob switch, including shell 1, shell 1 is interior to be equipped with manipulation chamber 2, and the manipulation is interior by force to be equipped with revolving part 3, It sets on the bottom wall of the manipulation chamber 2 there are two static contact 4, moving contact component 5, the moving contact is equipped with above the static contact 4 Component 5 includes the movable contact 51 of elastic strip 50, and one end of the elastic strip 50 is fixed on the inner wall of manipulation chamber 2, other end court It is tilted upwards to 4 end of static contact, movable contact 51 is located at elastic strip 50 close on one end of static contact 4, and the revolving part 3 includes turning Block 30 and conflict end 31, the conflict end 31 connect far from one end of movable contact 51 with elastic strip 50, is provide on the switch block 30 There is the knob lid 32 being slidably matched, set on the inner wall of the knob lid 32 there are two convex ribs, forms card slot between two convex ribs 320, the outer surface of the switch block 30 is equipped with convex block 300, and the convex block 300 is located adjacent to be embedded on the one end for contradicting end 31 In card slot 320, the surface of the knob lid 32 close to manipulation 2 inner wall of chamber is equipped with limited block 321, the inner wall of the manipulation chamber 2 It is equipped with annular convex edge 20, the corresponding elastic strip 50 of the annular convex edge 20 and the top of manipulation 2 inner wall junction of chamber are equipped with notch One 200, the top of corresponding movable contact 51 is equipped with notch 2 201, and pressure spring 33 is equipped between the knob lid 32 and switch block 30.

It is additionally provided with bulge loop 1 on the outer surface of the switch block 30, is formed and is slided between the bulge loop 1 and convex block 300 Area 302 is moved, is additionally provided with bulge loop 2 322 on the inner wall of the knob lid 32, it is described when knob lid 32 is located on switch block 30 Bulge loop 2 322 are located in sliding area 302.The width of the card slot 320 is greater than the width of convex block 300.

Concrete operations are as follows:

Knob lid 32 is when being not affected by pressing force, and using the Diastolic Force of pressure spring 33, knob lid 32 is located at the upper of annular convex ring Side, limited block 321 are located at the top of notch 1, the bulge loop 2 322 on 32 inner wall of knob lid and the bulge loop one on switch block 30 301 in mutually conflict state.When opening switch, knob lid 32 is pressed, 33 forced contraction of pressure spring, limited block 321 is by notch one 200 are fed through annular convex edge 20, are embedded the convex block 300 on switch block 30 in the card slot 320 on knob lid 32, then carry out up time Needle turning knob lid 32, switch block 30 at this time can be rotated together with knob lid 32, and switch block 30 in the course of rotation, contradicts end 31 can move along elastic strip 50, and acclivitous elastic strip 50 is moved towards 4 direction of static contact, when limited block 321 reaches When the position of notch 2 201, the movable contact 51 is located between two static contacts 4, switchs in open state.Then stop to rotation Button lid 32 continues pressing force, using the Diastolic Force of pressure spring 33, knob lid 32 is moved upwards, limited block 321 is by notch 2 201 On wear out, card slot 320 leaves the position of convex block 300, and bulge loop 1 and bulge loop 2 322 are in conflict state, goes to rotate at this time again Knob lid 32 will not be such that switch block 30 is subjected to displacement, and switch can be effectively prevented and be misused closing.

The setting of 32 convex ring 2 322 of 30 convex ring 1 of switch block and knob lid, can make rotation lid without departing from turn Block 30, the compactedness of lift structure.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims

1. a kind of knob switch, including shell, shell is interior to be equipped with manipulation chamber, and the manipulation is intracavitary to be equipped with revolving part, feature It is: is set on the bottom wall of the manipulation chamber there are two static contact, the static contact top is equipped with moving contact component, the moving contact Component includes the movable contact of elastic strip, and one end of the elastic strip is fixed on the inner wall of manipulation chamber, and the other end is towards static contact Inclination, movable contact are located at elastic strip close on one end of static contact upwards at end, and the revolving part includes switch block and contradicts end, described It contradicts end and elastic strip to connect far from one end of movable contact, is covered with the knob lid being slidably matched, the knob on the switch block It is set on the inner wall of lid there are two convex ribs, forms card slot between two convex ribs, the outer surface of the switch block is equipped with convex block, the convex block It is located adjacent to be embedded in card slot on the one end for contradicting end, the surface of the knob lid close to manipulation cavity wall is equipped with limit Block, the inner wall of the manipulation chamber are equipped with annular convex edge, and the annular convex edge corresponds to elastic strip and manipulates cavity wall junction Top is equipped with notch one, and the top of corresponding movable contact is equipped with notch two, pressure spring is equipped between the knob lid and switch block.

2. a kind of knob switch according to claim 1, it is characterised in that: be additionally provided on the outer surface of the switch block convex Ring one forms sliding area, bulge loop two is additionally provided on the inner wall of the knob lid, when knob housing between the bulge loop one and convex block When being located on switch block, the bulge loop two are located in sliding area.

3. a kind of knob switch according to claim 2, it is characterised in that: the width of the card slot is greater than the width of convex block Degree.