CN2814651Y - Button-switch - Google Patents

Abstract

The utility model discloses a novel button switch which is composed of a pushing rod assembly, a base assembly and an actuating mechanism, wherein the actuating mechanism is composed of a small shaft, a movable contact piece assembly, a lower pressing spring and an upper pressing spring. The movable contact piece assembly is arranged at the upper part of an upper step of the small shaft. The lower pressing spring is arranged at the lower part of the upper step of the small shaft. The upper pressing spring is sheathed on a pushing rod. The button switch with the novel structural form effectively solves the problems that a middle shaft and a small shaft of the existing button switch are deformed, when a movable contact and a static contact work, the movable contact and the static contact jump. The operating reliability of the switch is improved, and the service life of the switch is extended.

Description

Push-button switch

One, technical field

The utility model relates to a kind of switch, particularly relates to a kind of push-button switch, goes into H01H13/00.

Two, background technology

Use push-button switch always in instrument, instrument and the control panel at present, and the specifications and models of push-button switch own are more, structure is similar but have their own characteristics each, wherein a kind of more novel push-button switch as shown in Figure 1, its action part: the movable contact spring assembly is contained in below, little pillow block rank, and little axle upper end is contained in by in the bar, and little axle lower end is inserted in the spring, make dynamic and static contact conducting by promote little axle by bar during work, simple in structure, practical.But use and show that there is following defective in the push-button switch of this structural shape: 1, movable contact spring directly contacts with spring (promptly descending stage clip) below being contained in little pillow block rank, leans on during action by bar thrust movable contact spring to be contacted with fixed contact.Spring often appearred in dynamic and static contact when the push switch of this structural shape was worked, and had a strong impact on useful life; 2, the general plastic production that adopts of little axle, often the little shaft distortion of leading because of temperature rise influences functional reliability.

Three, utility model content

The purpose of this utility model is to provide a kind of performance good, work more safe and reliable and can overcome the novel push button switch of the shortcoming of switch shown in Figure 1, this push-button switch can adopt following technical scheme to implement: it is by forming by bar assembly, base assembly and actuating mechanism.Wherein: actuating mechanism is made up of little axle, movable contact spring assembly, following stage clip and compression spring.The movable contact spring assembly is contained in little axle and goes up the step top that is provided with, and following stage clip directly is contained in the below that little axle is topped bar, and compression spring is enclosed within by on the bar; Form by button with by bar by the bar assembly, button is packed into by in the bar; Base assembly is made up of binding post, fixed contact, pedestal.

The push-button switch that designs and produces according to technique scheme compared with prior art its advantage is: 1, the little axle of the guiding of movable contact spring can adopt metal to make, and makes little axle that deformation take place to overcome because of conduction produces temperature rise, improves its functional reliability; 2, be provided with the compression spring of cushioning effect, and movable contact spring directly is contained in the top that little axle is topped bar, and following stage clip is contained in the step below, contacts with fixed contact by pressing bar drive compression spring promotion movable contact spring during work, can effectively reduce the contact bounce number of times, the useful life of improving switch greatly.

Four, description of drawings

Fig. 1, existing push-button switch structure schematic diagram;

Fig. 2, push-button switch structure schematic diagram of the present invention.

Five, embodiment

Push-button switch of the present utility model can be implemented according to mode shown in Figure 2: as shown in Figure 2, it is by forming by bar assembly, base assembly and actuating mechanism.Wherein: actuating mechanism is made up of little axle 9, movable contact spring assembly 4, following stage clip 10 and compression spring 8, and movable contact spring assembly 4 is contained in the step top on the little axle 9, and following stage clip 10 is contained in the below that little axle is topped bar, and compression spring 8 is enclosed within by on the bar 5; Form by button 6 with by bar 5 by the bar assembly, button 6 is contained in by in the bar 5; Base assembly is made up of binding post 1, fixed contact 2, pedestal 3.During general assembly compression spring 8 is enclosed within by on the bar, movable contact spring assembly 4 is contained in after little axle is gone up to be put into little axle by the bar assembly, and the shell 7 of packing into then, following stage clip 10 are loaded onto behind the little axle base assembly packed into shell and riveted joint.The operating principle and the prior art of novel push button switch are similar.

Claims (1)

1, a kind of by the push-button switch of forming by bar assembly, base assembly and actuating mechanism, it is characterized in that actuating mechanism is by little axle (9), movable contact spring assembly (4), stage clip (10) and compression spring (8) are formed down, wherein movable contact spring assembly (4) is contained in the step top on the little axle (9), following stage clip (10) is contained in the below that little axle (9) is topped bar, and compression spring (8) is enclosed within by on the bar (5).

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