CN2812795Y

CN2812795Y - Electric cooker and electric pressure cooker timer

Info

Publication number: CN2812795Y
Application number: CN 200520012691
Authority: CN
Inventors: 王国畅
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-23
Filing date: 2005-06-23
Publication date: 2006-09-06
Anticipated expiration: 2015-06-23

Abstract

The utility model relates to an electric cooker and an electric pressure cooker timer. The utility model comprises a machine frame, a gear transmission mechanism which is driven by the output shaft of a motor and is fixed in the machine frame, a group of movable and static spring sheets, a switching mechanism which can open and close the two spring sheets, and a braking device, wherein the switching mechanism is composed of a travel-time cam and a shifting fork fixed on the movable spring sheet; the wheel disk surface of the travel-time cam is provided with a gap which is matched with the shifting fork and cause the movable and static spring sheets to be closed and separated, the braking device is composed of an oriented braking sheet sheathed on a wheel shaft of nine wheels, and a stopping block which is fixed on the bottom part of eight wheels and synchronously rotates with the eight wheels, wherein the wheel surface of the oriented braking sheet is provided with a protrusion which outwards protrudes and is matched with the stopping block in order to prevent the counterclockwise rotation of the motor and prevent the reverse travel time of a timer. The utility model is driven by the motor, utilizes the matching of the cam and the shifting fork to open and close the movable and static spring sheets, and has the characteristics of simple structure, reliable performance and long life time. The utility model provides a new variety of timers for electric rice cookers and electric pressure cookers.

Description

Electric cooker, electric pressure cooking saucepan timer

Technical field

The utility model relates to a kind of mechanically operated timer of using, especially a kind of for example timer of electric cooker, electric pressure cooking saucepan etc. of kitchen electrical heated appliance that is used for.

Background technology

General kitchen electrical heated appliance, for example electric cooker, electric pressure cooking saucepan are not all established timer, promptly begin to cook behind the connection power supply, if burn vexed overlong time, both influenced taste, and can waste energy again, and on electric cooker, electric pressure cooking saucepan, can load onto timer so people just imagine.Existing electric cooker timer adopts electronic type more, and the electronic circuit that it needs integrated circuit and various electronic devices and components to form is controlled.The patent No. is " ZL94247595.X ", and " electric cooker timer " adopts the electronic circuit method exactly, to electric cooker power supply and carry out timing and boil burning.Because electronic devices and components very easily damage in high temperature, high humidity environment, as long as in electronic circuit, there are components and parts to damage, will cause whole timer to scrap, so have unstable product quality, the defective that service life is short.The technology of utilizing mechanical timer to control electric cooker, electric pressure cooking saucepan does not have report as yet, according to the practical requirement of electric cooker, it is generally all shorter that timing is set, thus also be provided with in the prior art a kind of simple in structure, the timer that price can be complementary with electric cooker, electric pressure cooking saucepan.

Summary of the invention

The purpose of this utility model is at above-mentioned the deficiencies in the prior art and defective, for electric heating pots such as electric cooker, electric pressure cooking saucepan provide a kind of long service life, mechanical timer simple in structure.

The technical scheme that the utility model adopted is for achieving the above object: this electric cooker, electric pressure cooking saucepan, it comprises frame, be fixed on the gear drive that drives by motor output shaft in the frame, this gear drive comprises some groups of pitch wheel groups, one group moving, static contact spring piece, make this two reed is closed and open switching mechanism and brake gear, described switching mechanism cam and shift fork of being fixed on the movable contact spring when walking are formed, cam and the coaxial installation of great wheel when walking, rotation synchronously, have breach on the cam circle side face when walking, it cooperates with shift fork, when cam compresses mutually with shift fork when walking, moving, the static contact spring piece closure, the breach when walking on the cam is relative with shift fork, when shift fork is jumped into breach, moving, static contact spring piece separates; Described brake gear comprise be fixed on eight take turns bottom and eight take turns the scotch of synchronous rotation and be sleeved on nine take turns the below and with nine take turns central shaft directed brake block movingly and form, on the wheel face of directed brake block overhanging projection is arranged, its side can be leaned on mutually with the pillar on being fixed on frame, opposite side matches with scotch, in case motor is rotated counterclockwise.

The utility model drives without the clockwork spring of mechanical timer routine, be by driven by motor and when utilize the breach on cam and the cam match with shift fork on the movable contact spring, make dynamic and static reed closed and disconnected, it is simple in structure, dependable performance, long service life, be culinary electric heating pot, for example electric cooker, electric pressure cooking saucepan have increased a kind of new timer kind.

Description of drawings

Fig. 1 is the state diagram of the dynamic and static reed of the utility model when closed.

Fig. 2 is the state diagram of the dynamic and static reed of the utility model when disconnecting.

Fig. 3 is the structural representation of Fig. 1 cam.

Fig. 4 is eight structural representations of taking turns among Fig. 1.

Fig. 5 is the A-A cutaway view of Fig. 4.

Fig. 6 is sleeved on nine to take turns the relative position schematic diagram that brake block and eight on the central shaft is taken turns the locking plate of synchronous rotation among Fig. 1.

The specific embodiment

As shown in the figure, this electric cooker, electric pressure cooking saucepan, it comprises frame 16, is installed on the gear drive that is driven by motor output shaft in the frame, one group of dynamic and

static reed

13,14 and its switching mechanism and brake gear.Gear drive is by some groups of mutual gear trains, wherein the axle tooth of motor output shaft is engaged in nine and takes turns 12 wheel for inputting, nine take turns 12 teeth is engaged in eight and takes turns 10 wheel for inputting, eight axle tooths are engaged in seven and take turns 2 wheel for inputting, and seven axle tooths are engaged in six and take turns 1 wheel for inputting, and six axle tooths are engaged in five and take turns 3 wheel for inputting, five axle tooths are engaged in four-wheel 5 wheel for inputting, four-wheeled axis tooth is engaged in three-wheel 6 wheel for inputting, and three axle tooths are engaged in two and take turns 7 wheel for inputting, and the great wheel arbor tooth is engaged in great wheel 9.In the bottom of four-wheel 5 pad 4 is housed.The switching mechanism of described dynamic and

static reed

13,14 cam 8 when walking is formed with the shift fork 17 that is fixed on the static contact spring piece 13.As Fig. 2, shown in Figure 3, cam 8 and great wheel 9 coaxial installations when walking, rotation synchronously.The periphery of cam is provided with breach when walking, and it matches with shift fork 17 on being fixed on static contact spring piece 13, and when normal operation, cam rotation back compresses mutually with shift fork 17, makes movable contact spring 13 and static contact spring piece 14 closures.Cam rotates to its breach when relative with shift fork when treating away, because the elastic-restoring force of movable contact spring in the breach of cam, makes the disconnection of movable contact spring and static contact spring piece when shift fork is jumped into away.Dynamic and static reed is connected another binding post 15 ground connection with two binding posts on the frame.Described brake gear is by directed brake block 11 and be fixed on eight scotch 18 of taking turns 10 bottoms and form.As Fig. 4, Fig. 5, shown in Figure 6, eight bottoms of taking turns are fixed with and are two and fall fan-shaped scotch 18, and they can be injection molded into one.Directed brake block 11 is sleeved on nine and takes turns on 12, and nine takes turns movingly, and overhanging projection is arranged on the wheel face of this orientation brake block, and its side can be leaned on mutually with the pillar 19 on being fixed on frame, and the scotch 18 that opposite side and eight is taken turns synchronous rotation matches.When motor ran well, eight took turns and turn clockwise, and scotch can not collided with directed brake block.When motor turned round counterclockwise, scotch promptly leaned on mutually with the overhanging protruding part of directed brake block, in the time of can preventing that motor is rotated counterclockwise like this, when timer is oppositely walked.

Gear and carry out transmission when motor rotates by following order: motor shaft tooth → nine take turns → eight take turns → seven take turns → six take turns → five take turns → four-wheel → three-wheel → two take turns → great wheel → cam when walking, thus control movable contact spring 13.Cam when driving away when great wheel turns clockwise to certain angle, makes cam compress mutually with shift fork, movable contact spring and static contact spring piece closure.Behind power connection, motor is started working, and moves in proper order by the said gear transmission, cam gets back to 0 when spending when walking, and the shift fork on the movable contact spring is jumped into the breach on the cam wheel face, because the screen resilience of movable contact spring, it is separated with static contact spring piece, and motor power cuts off, and the timer running stops automatically.

Claims

1, a kind of electric cooker, the electric pressure cooking saucepan timer, it comprises frame (16), be fixed on the gear drive that drives by motor output shaft in the frame, this gear drive comprises some groups of pitch wheel groups, one group moving, static contact spring piece (13), (14), make this two reed is closed and open switching mechanism and brake gear, it is characterized in that cam was formed with the shift fork (17) that is fixed on the movable contact spring (13) when described switching mechanism comprised walking, cam when walking (8) and the coaxial installation of great wheel (9), rotation synchronously, have breach on the periphery of cam, it cooperates with shift fork, when cam and shift fork (17) when compressing mutually, moving, the static contact spring piece closure, when shift fork is jumped into breach on the cam, moving, static contact spring piece separates.

2, electric cooker according to claim 1, electric pressure cooking saucepan timer, it is characterized in that described brake gear comprises that being sleeved on nine takes turns (12) below and nine wheel shafts directed brake block (11) movingly, be fixed on eight and take turns scotch (18) composition that (10) rotation is synchronously taken turns in (10) bottom and eight, on directed brake block (11) wheel face overhanging projection is arranged, its side can be leaned on mutually with the pillar (19) on being fixed on frame, opposite side matches with scotch (18), is rotated counterclockwise to stop motor.