CN203117645U

CN203117645U - S-shaped spring of timer

Info

Publication number: CN203117645U
Application number: CN 201320035619
Authority: CN
Inventors: 沈玉琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-15
Filing date: 2013-01-15
Publication date: 2013-08-07
Anticipated expiration: 2023-01-15

Abstract

The utility model relates to an S-shaped spring of a timer. The S-shaped spring is mainly composed of a cover casing, a balance wheel, an escape wheel, a fourth wheel, a third wheel, a second wheel, a first wheel, a clockwork spring, a lever, a base, a main shaft, a cam, a break-make seat, a moving reed and a static reed. The S-shaped spring is characterized in that one end of the spring is made into an inverted loop and wound into an S shape and further connected with the main shaft; the other end of the spring is connected with the first wheel, the second wheel, the third wheel, and the fourth wheel to achieve speed increases; the time is controlled by releasing through the escape wheel and the balance wheel; and timing control is further achieved by triggering in a timing manner through the breaking and closing of the lever, the cam, the break-make seat, the moving reed and the static reed. Compared with a spring wounded in one direction, the S-shaped spring enables relatively large amounts of elastic deformation laps whether the spring is loosened or fastened. Meanwhile, the output moment is always relatively constant. The escape wheel is thus uniformly forced. The time traveling precision of the timer is thus enhanced.

Description

A kind of timer S shape clockwork spring

Technical field

The utility model relates to a kind of clockwork spring, especially relates to the high timer clockwork spring of a kind of timekeeping performance.

Background technology

Timer inside mainly comprises three parts: first is power part: be made up of clockwork spring, the unidirectional mechanism that winds up, clockwork spring provides the power of total system; Second portion is release portion: by one group of speed gear, escape wheel is formed; Third part is timing springing unit, and certain gear forwards certain angle to and sends a mechanical signal in gear set, the control break-make.

Existing timer clockwork spring all is that a direction is rolled-up, clockwork spring roll tightly with roll up the pine state under the escape wheel acting force on the gear set is had first big after small weak point, the escape wheel motion has produced first quick and back slow on the gear set like this, influence the speed that gear rotates, caused the timer timekeeping performance to reduce.

The utility model content

The purpose of this utility model is exactly in order to overcome above-mentioned weak point of the prior art, provides a kind of output torque more constant clockwork spring, is applied in timer, reaches the purpose that improves timekeeping performance.

The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of timer S shape clockwork spring, mainly by case, escapement, escape wheel, four-wheel, three-wheel, two take turns, great wheel, clockwork spring, lever, base, main shaft, cam, the disconnected seat that closes, movable contact spring and static contact spring piece are formed, shell is made up of case and base, clockwork spring is housed in the case, it is characterized in that: make anti-circle for one of described clockwork spring, be rolled into S shape, connect main shaft, the other end is connecting great wheel, two take turns, three-wheel, four-wheel is realized speedup, pass through escape wheel, escapement discharges, control time, pass through lever, cam, the disconnected seat that closes, disconnected the closing of movable contact spring and static contact spring piece carried out the timing triggering, realizes timing controlled.

The beneficial effects of the utility model are: such S shape clockwork spring is compared with an original rolled-up clockwork spring of direction, no matter clockwork spring has had the more elastic deformation number of turns when rolling up pine or rolling tightly, output torque is more constant all the time, make the escape wheel stress equalization, the precision when improving timer travel.

Description of drawings

Fig. 1 is the timer construction synoptic diagram of a kind of timer S of the utility model shape clockwork spring;

Fig. 2 is the flip flop equipment enlarged drawing of Fig. 1;

Fig. 3 is Fig. 1 clockwork spring S shape shape synoptic diagram.

Among the figure 1-case, 2-escapement, 3-escape wheel, 4-four-wheel, 5-three-wheel, 6-two take turns, disconnected seat, 14-movable contact spring, the 15-static contact spring piece of closing of 7-great wheel, 8-clockwork spring, 9-lever, 10-base, 11-main shaft, 12-cam, 13-.

Embodiment

The utility model is described in further detail below in conjunction with Fig. 1, Fig. 2, Fig. 3 and an embodiment:

As shown in the figure, form the housing of timer by case 1 and base 10, clockwork spring 8 is housed in the case, make anti-circle for one of described clockwork spring, be rolled into S shape, connect main shaft 11, the other end is connecting great wheel 7, two and is taking turns 6, three-wheel 5, four-wheel 4 is realized speedup, discharges the control time by escape wheel 3 escapements 2, by lever 9, cam 12, the disconnected seat 13 that closes, movable contact spring 14 and static contact spring piece 15 disconnected closing are carried out the timing triggering, realize timing controlled.

Claims

1. timer S shape clockwork spring, mainly by case, escapement, escape wheel, four-wheel, three-wheel, two take turns, great wheel, clockwork spring, lever, base, main shaft, cam, the disconnected seat that closes, movable contact spring and static contact spring piece are formed, shell is made up of case and base, clockwork spring is housed in the case, it is characterized in that: make anti-circle for one of described clockwork spring, be rolled into S shape, connect main shaft, the other end is connecting great wheel, two take turns, three-wheel, four-wheel is realized speedup, pass through escape wheel, escapement discharges, in the control time, pass through lever, cam, the disconnected seat that closes, disconnected the closing of movable contact spring and static contact spring piece carried out the timing triggering, realizes timing controlled.