CN201429778Y

CN201429778Y - timer

Info

Publication number: CN201429778Y
Application number: CN2009201221877U
Authority: CN
Inventors: 钱本宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-10
Filing date: 2009-06-10
Publication date: 2010-03-24
Anticipated expiration: 2019-06-10

Abstract

The utility model relates to a timer. A dial key rotating around a middle pivot is inserted into the slotted hole of an index dial of the timer, a notch matched with one end of a swinging rod is arranged below the outer side of the dial key, a first positioning slot and a second positioning slot are formed at the bottom, and a positioning bulge matched with the first positioning slot and the second positioning slot is formed on a press plate. When the dial key is shifted towards the outer side of the index dial, the outer side of the dial key is in contact with one end of the swinging rod, andthe positioning bulge is positioned inside the first positioning slot; and when the dial key is shifted towards the center of the index dial, the notch corresponds to one end of the swinging rod, andthe positioning bulge is positioned inside the second positioning slot. By adopting the above structure, the timer overcomes the shortcoming that a timing pin is easily lost and is inconvenient to operate, and has the characteristics of simple structure, good operating handfeel and high integrity. By virtue of axially arranged bolts, the timer can ensure the reliable connection between a timing gear and an hour hand shaft, so as to avoid loose of the timing gear and the hour hand shaft during production and transportation and effectively improve the service performance of the timer.

Description

A kind of timer

Technical field

The utility model relates to a kind of timer, specifically refers to a kind ofly make constant speed with parts and rotate the timer make the contact action.

Background technology

Present comparatively common timer, its timing mechanism comprise index plate and some time pins that a hour hand axle with timer links, and are provided with and the corresponding timing hole of calibration on this index plate.When needing setting-up time, as long as time pin is inserted in the pairing timing hole of corresponding calibration, this moment, time pin rotated with index plate, and the touch switch of driving timing device on time, thereby started electrical appliance in the time of setting.

Adopt the mode of above-mentioned time pin and timing hole to carry out timing, though can realize fixed cycle operator, but still there is following problem in it: (1) is because when fixed cycle operator, the user need be to doing Plug Action with time pin, and timing hole is smaller, the comparatively trouble that therefore operates, even the phenomenon of wrong plug timing hole occurs and cause the misoperation of electrical appliance, especially for those users who has defective vision, this defective is more obvious.(2) service time of a specified duration, the Plug Action meeting makes the wearing and tearing of time pin, timing hole, so make occur between time pin and the timing hole loosening so that the time pin phenomenon that drops takes place; And the split of this time pin and index plate design, the also as easy as rolling off a log time pin of losing finally influences the normal use of timer.(3) because the time pin radical much smaller than the number of timing hole, therefore under the situation of time pin number deficiency, can't be realized the requirement of more multi-period startup electrical appliance work.Moreover the interlock mode of index plate and hour hand axle mostly adopts following structure: index plate is installed on the timing dish, the timing dish again be installed in hour hand axle on the timing gear be meshed.But timing gear and hour hand axle only are the close-fitting relations, in the assembling process, if assembling person does not push the timing gear and puts in place, perhaps in transportation, all can cause becoming flexible between timing gear and the hour hand axle because of vibrations, this phenomenon will cause index plate to link with hour hand axle, and promptly timer can't operate as normal.

For this reason, people design a kind of new timer, as the Chinese patent notification number be just disclosed in " the timer timing mechanism " of CN2446652Y so a kind of timer, have 24 windows and 24 corresponding straight pins of window on the rotating disk of this timer, be provided with the time pin that can move radially in each window, have the groove that inserts for straight pin on this time pin, the sidewall of time pin is provided with the inclined-plane collision block.During use, by moving radially time pin, make the inclined-plane collision block touch power switch, and then reach purpose regularly.Obviously,, and only move radially, thereby overcome preferably that traditional time pin is easily lost, unhandy defective owing to be equipped with time pin in the window of above-mentioned rotating disk.

The utility model content

Technical problem to be solved in the utility model is at above-mentioned prior art present situation, and a kind of novel structure is provided and has equally that time pin is difficult for losing, easy to operate timer.

Simultaneously, the utility model provides a kind of timer of guaranteeing that timing gear and hour hand axle reliably are connected also at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this timer comprises housing and is seated in timing mechanism in the medial concavity of case panel and fork that an end is exposed to the touch switch of recess, the pressing plate that described timing mechanism includes the index plate that links with the hour hand axle of timer again and is positioned at the index plate below and is connected mutually with index plate, be distributed with on the described index plate with index plate on the corresponding a plurality of slotted eyes of calibration, it is characterized in that: in described each slotted eye, be inserted with pivotally supported group of key around the middle part, the outer side edges below of this group key has the breach that above-mentioned fork one end matches, the bottom of this group key has first locating slot that is adjacent to above-mentioned breach and adjacent to second locating slot of first locating slot, described pressing plate be provided with this first, the positioning convex that second locating slot matches, under the state that described group of key stirred to the index plate outside, described group of key outer side edges touched mutually with above-mentioned fork one end, described positioning convex is arranged in described first locating slot simultaneously, and work as described group of key under the state that the index plate central side is stirred, above-mentioned breach is corresponding to described fork one end, and described positioning convex then is arranged in described second locating slot.

As further improvement of the utility model, described pressing plate below also is provided with the timing dish that is close to mutually with described index plate, this timing dish again be sleeved on described hour hand axle on the timing gear be meshed, and on the timing gear, have an axial hole, one screw is integral described timing gear and hour hand axle admittedly by this axial hole, makes timing gear and hour hand axle realize reliably being connected.

A plurality of positioning convex on the pressing plate can arrangement design structure circlewise, but in order to make it have certain elasticity in the axial direction, the periphery of described pressing plate preferably has a plurality of grooves, form and the corresponding radially bar of slotted eye between the adjacent grooves, described positioning convex is positioned at this radially on the bar, utilize each groove like this, can make radially that bar and positioning convex have certain deformation in the axial direction, can realize the location smoothly so that dial in the key rotary course.

In above-mentioned each scheme, can also be hinged with the translucent cover that is covered with case panel on the described housing, so neither hinder and observe, can protect timer to exempt from dirt again and invade.

Compared with prior art, because the utility model adopts the mode of dialling key to replace existing pulling and inserting type time pin or move radially the formula time pin, and utilize to dial cooperating of breach and swing link end part on the key outer side edges dexterously, and the coupling of dialling locating slot on the positioning convex of key bottom and the pressing plate, make the utility model both overcome that time pin is easily lost, unhandy defective, while has simple in structure again, and operating handle is good, the characteristics that associative perception is strong.Moreover, by means of the screw that axially is provided with, can guarantee reliably to be connected between timing gear and the hour hand axle, thereby avoid the loosening phenomenon that in production and transportation, occurs, can improve the usability of timer effectively.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model embodiment after opening translucent cover;

Fig. 2 is the sectional perspective exploded view of Fig. 1;

Fig. 3 is the front view of the utility model embodiment;

Fig. 4 for the A-A of Fig. 3 to partly cuing open figure (being in definition status);

Fig. 5 is the enlarged diagram of I part among Fig. 4;

Fig. 6 partly cuts open figure for what be in the non-timed state among Fig. 4;

Fig. 7 is the enlarged diagram of II part among Fig. 6.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1 to Figure 3, this timer comprises housing 1, timing mechanism 2, crystal clock 3 and touch switch 4 and fork 5 thereof, its middle shell is combined by loam cake 11 and lower cover 12, and is provided with a recess 111 in the centre of loam cake 11, so that timing mechanism 2 is located within it; Crystal clock 3, touch switch 4 and corresponding wiring board 6 are positioned at above-mentioned housing 1, and the hour hand axle 31 of crystal clock is exposed to the center of above-mentioned recess 111; One end 51 of above-mentioned fork is exposed to the side-walls of recess 111, and the other end of fork 5 is corresponding with the press-side of touch switch 4, covers on corresponding fork one end and also is provided with an arrow 112, to play indicative function.

The pressing plate 22 that described timing mechanism 2 includes the index plate 21 that links with the hour hand axle 31 of timer again and is positioned at the index plate below and is connected mutually by screw and index plate, be distributed with on the index plate with index plate on the corresponding a plurality of slotted eyes 211 of calibration, in the present embodiment, timer is with a hour timing working, thereby 24 of uniform one-tenth of slotted eye, plug group key 23 of middle part band pivot 231 in each slotted eye, pivot suspension is on the sidewall of slotted eye, can have around its middle part pivot rotation so that dial key, the top of this group key has the operating side 232 that exposes to slotted eye, outer side edges 233 belows of dialling key have the breach 234 that above-mentioned fork one end matches, and the bottom of dialling key has first locating slot 235 that is adjacent to above-mentioned breach and adjacent to second locating slot 236 of first locating slot; And pressing plate 22 is provided with the positioning convex 221 that matches with this first, second locating slot, in order to improve operability, the periphery of pressing plate 22 has a plurality of grooves 222, form and the corresponding radially bar 223 of slotted eye between the adjacent grooves, above-mentioned positioning convex 221 is positioned at this radially on the bar 223, make radially that bar has certain deformability in the axial direction,, realize dialling the reliable location of key so that radial protrusion can successfully fall in the corresponding locating slot.

In the present embodiment, above-mentioned index plate 21 with the interlock mode of hour hand axle 31 is: pressing plate 22 is designed to ring texture, below pressing plate 22, be provided with the timing dish 7 of external diameter less than the pressing plate internal diameter, the square shaft 71 of this timing dish by the middle part be tight to be inserted in the square hole 212 of index plates to realize both being close to mutually, have four teeth 72 that are meshed with timing gear 8 on the inwall of this timing dish 7, and timing gear 8 is sleeved on the hour hand axle 31, and having an axial hole 81, one self-tapping screws 9 on timing gear 8 is integral timing gear and hour hand axle admittedly by this axial hole.

For the ease of timing, timing knob 10 pass behind square hole on the index plate, the square shaft on the timing dish be positioned at hour hand axle on timesharing axle 32 be connected, promptly the timing knob is positioned at the index plate outside, has transferred very convenient like this.On above-mentioned housing 1, also be hinged with simultaneously the translucent cover 20 that is covered with case panel (being loam cake), to avoid intrusion such as dust.

When this timer uses, as long as radially pull the operating side of dialling key, when dialling key when stir in the index plate outside, it is corresponding with above-mentioned fork one end to dial the key outer side edges, this moment, positioning convex was positioned at first locating slot, to keep this positioning states, after this, rotation along with index plate, when this group key went to above-mentioned arrow indication position, the outer side edges of this group key was touched mutually with an end of fork, makes the other end of fork push touch switch, impel wiring board work to reach the purpose of electrical appliance work, see also Fig. 4 and Fig. 5.When dialling key when the index plate central side is stirred, above-mentioned breach is corresponding to an end of described touch switch, and positioning convex then is arranged in second locating slot, at this moment, when dialling key, can't touch fork through fork one end, see also Fig. 6 and Fig. 7, also just can not make touch switch action and electrical appliance work.

Claims

1, a kind of timer, comprise housing (1) and be seated in timing mechanism (2) in the medial concavity (111) of case panel and the fork (5) of the touch switch (4) that an end is exposed to recess, the pressing plate (22) that described timing mechanism (2) includes the index plate (21) that links with the hour hand axle (31) of timer again and is positioned at the index plate below and is connected mutually with index plate, be distributed with on the described index plate with index plate on the corresponding a plurality of slotted eyes of calibration (211), it is characterized in that: in described each slotted eye, be inserted with group key (23) that rotates around middle part pivot (231), the outer side edges of this group key (233) below has the breach (234) that above-mentioned fork one end matches, the bottom of this group key has first locating slot (235) that is adjacent to above-mentioned breach and adjacent to second locating slot (236) of first locating slot, described pressing plate (22) be provided with this first, the positioning convex that second locating slot matches (221), under the state that described group of key stirred to the index plate outside, described group of key outer side edges (233) touched mutually with above-mentioned fork one end (51), described positioning convex (221) is arranged in described first locating slot (235) simultaneously, and work as described group of key under the state that the index plate central side is stirred, above-mentioned breach (234) is corresponding to an end (51) of described fork, and described positioning convex (221) then is arranged in described second locating slot (236).

2, timer according to claim 1, it is characterized in that: described pressing plate (22) below also is provided with the timing dish (7) that is close to mutually with described index plate, this timing dish again be sleeved on described hour hand axle on timing gear (8) be meshed, and have an axial hole (81) on the timing gear, a screw (9) is integral described timing gear and hour hand axle admittedly by this axial hole.

3, timer according to claim 1 and 2, it is characterized in that: the periphery of described pressing plate has a plurality of grooves (222), form between the adjacent grooves and the corresponding radially bar of slotted eye (223), described positioning convex (221) is positioned at this radially on the bar (223).

4, timer according to claim 3 is characterized in that: also be hinged with the translucent cover (20) that is covered with case panel on the described housing (1).

5, timer according to claim 1 and 2 is characterized in that: also be hinged with the translucent cover (20) that is covered with case panel on the described housing (1).