CN2165468Y - Alarm bell control structure for quartz alarm clock - Google Patents

Abstract

The utility model relates to an alarm bell control structure for a quartz alarm clock. The utility model is characterized in that the sheathing heads of an hour hand and an alarming time pin which are tightly sheathed on the shaft ends of an hour hand wheel and a timing wheel are respectively provided with corresponding oblique convex points and oblique concave points. The separation or the contact of the copper sheets of a switch is controlled by the hour hand wheel through the on-off action of the convex points and the concave points. Therefore, the purpose of controlling the alarm bell is achieved.

Description

Alarm bell control structure for quartz alarm clock

The utility model relates to a kind of quartz alarm clock quarter-bell control structure, refers to especially a kind ofly control a switch copper sheet separately or contact by hour wheel, and the control alarm clock.

At present, the alarm clock kind that people use is more, and its quarter-bell structure is all complicated, make time-consuming, the cost height, price is expensive.

The purpose of this utility model is that a kind of quartz alarm clock quarter-bell control structure will be provided, and it is not only simple in structure, and processing easily, and cost is low.

The purpose of this utility model is achieved in that the pullover of hour hands and quarter-bell time pin pulloverly has the match oblique salient point of answering and an oblique concave point, and the switch copper sheet by means of clutch action (separately or contact) control quarter-bell is arranged.Two switch copper sheets of quarter-bell switch, following elongated end with switch copper sheet of balance pivot is positioned between the timing wheel and timing wheel of phase fit, borrow the clutch action of the pullover oblique concave point of pullover oblique salient point of hour hands and time pin to draw to carry or loosen timing and take turns, again by the following elongated end of timing wheel gauge tap copper sheet, elongated end on it is separated with another switch copper sheet of answering of matching by leverage or contact.

Because adopt such scheme, the utility model novel structure has reduced many parts, thereby reduce the cost of investment of die sinking and production, can cooperate full-automatic production with manpower with least equipment.

Below by accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the utility model example structure decomposing schematic representation.

Fig. 2 is the utility model embodiment composite construction and clutch thereof, switch motion synoptic diagram.

Among the figure: 1 hour hands, 2 quarter-bell time pins, 3 circuit boards, 5,6 switch copper sheets, 10 timing wheel, 11 hour hands are pullover, 20 timing wheels, and 21 time pins are pullover, 51 balance pivots, elongated end on 52,53 times elongated ends, 101,201 timing wheel sleeves, 111 oblique salient points, 211 oblique concave points.

Referring to Fig. 1; The utility model embodiment is respectively equipped with oblique salient point 111 and oblique concave point 211 on pullover 11 and 21 opposite face of hour hands 1 and quarter-bell time pin 2.Pullover 11 of hour hands 1 are locked respectively at the timing wheel 10 of fit mutually and the sleeve 101 and 201 ends of timing wheel 20 with pullover 21 of time pin 2, and its oblique salient point 111 and oblique concave point be face-to-face, but the confined state of formation phase clutch.Be installed on the circuit board 3, because of contact " ON ", because of separating the two switch copper sheets 5 and 6 of " OFF " mutually, wherein the tabs of switch copper sheet 5 waists and circuit board 3 are fixed into balance pivot 51, match with switch copper sheet 6 should for elongated end 52 on it, 53 emergences of following elongated end are below circuit board 3, and between the timing of phase fit wheel 10 and timing wheel 20 (Fig. 2).

As shown in Figure 2; When timing wheel 20 was driven to rotate with opposite direction because of the operating and setting time, the oblique concave point 211 of timing needle guard head leaves the pullover oblique salient point 111 of hour hands, then the oblique salient point 111 of hour hands pullover 11 promptly withstands on the plane of timing needle guard head 21, and draw the timing of carrying sleeve 101 to take turns 10, then the following elongated end 53 of rubber-like switch copper sheet 5 is promptly pressed and oppresses by timing wheel 10 along its direction, last elongated end 52 promptly separates (shown in dotted line) because of leverage with another switch copper sheet 6 of answering that matches mutually, this moment, noisy acoustic-electric road was " OFF ", and when timing wheel 10 turns to the time that quarter-bell time pin 2 sets because of the timing circuit normality, the pullover oblique salient point 111 of hour hands promptly with pullover pin concave point 211 driving fit mutually of time pin, timing this moment wheel 10 is relaxation state, 5 times elongated ends of switch copper sheet, 53 oppressed states are removed, elongated end 52 promptly contacts with another switch copper sheet 6 because of elastic reaction on it, this moment, the quarter-bell circuit was " ON ", the noisy sound rises, leave the pullover oblique concave point 211 of time pin again until the pullover oblique salient point 111 of hour hands, noisy sound promptly stops.

In a word, the utility model is to establish the oblique salient point and oblique concave point 211 that matches and answer on hour hands pullover 11 and time pin pullover 21, and contact with 6 with control two switch copper sheets 5 or separate mutually from, cooperation with it, the automatic switch of sound that is used as making a noise, and constitute regularly alarm.

Claims (2)

1, a kind of quartz alarm clock quarter-bell control structure, what it is characterized in that the pullover of hour hands and quarter-bell time pin pulloverly has the match oblique salient point of answering and an oblique concave point, and the switch copper sheet by means of clutch action (separately or contact) control quarter-bell is arranged.

2, quartz alarm clock quarter-bell control structure as claimed in claim 1, the two switch copper sheets that it is characterized in that the quarter-bell switch, following elongated end with switch copper sheet of balance pivot is positioned between the timing wheel and timing wheel of phase fit, borrow the clutch action of the pullover oblique concave point of pullover oblique salient point of hour hands and time pin to draw to carry or loosen timing and take turns, again by the following elongated end of timing wheel gauge tap copper sheet, elongated end on it is separated with another switch copper sheet of answering of matching by leverage or contact.

Images