CN1522636A - Pressure electric cooker lid locking arrangement - Google Patents

Abstract

The present invention discloses a cover-locking device of pressure electric cooker. Said device includes a locking handle which can rotate and is exposed outwards, said locking handle can drive a locking ring and make it turn together so as to make the locking ring selectively contact with upper end of the heating pot. In the pressure electric cooker, the lower end portion of the locking handle can be inserted into a horizontal supporting frame, said locking handle and said supporting frame can be fixed by means of a nut-straight quick-acting screw, and the lower end of said quick-acting screw can be screw-inserted into the supporting hole of inner cover. Said invention can raise the operation stability and durability of the locking handle and its structure is simple.

Description

Cover-locking device of pressure electric cooker

Technical field

The present invention relates to a kind of electric pressure rice cooker, particularly relate to a kind of cover-locking device of pressure electric cooker.

Background technology

In general, electric pressure rice cooker is to utilize electric energy to heat heating kettle and make food in the heating kettle maintain a kind of cooker of high-temperature high-pressure state.Fig. 1 is the electric pressure rice cooker structure cutaway view of prior art.As shown in Figure 1, the electric pressure rice cooker of prior art mainly is made up of body 1 and the pot cover 2 that can open and close body 1 top.Wherein body 1 comprises shell 11; Be fixed in the shell 11 and can form the lower panel 12 in space on it; Can put into the heating kettle 13 that the spatial portion that formed by lower panel 12 and its top edge are provided with a plurality of outwardly-bent hook 13a; Be arranged on the lateral surface of lower panel 12 and the actuating coil 12a that cooks required thermal source can be provided; Between shell 11 and lower panel 12 and the side hot plate 14 that is provided with around heating kettle 13; Be arranged at the lateral surface of side hot plate 14 and can provide the 1st of the required thermal source of insulation to be incubated thermal source 14a; With the front that is arranged on shell 11 and can open and close the breech lock 15 of pot cover 2.Pot cover 2 then comprises with rotatable hinge and is incorporated into enclosing cover 21 on the shell 11; Be fixed in the inner cap 22 of enclosing cover 21 inside; Be fixed in the bottom of inner cap 22 and can be used as the top hot plate 23 of heating kettle 13 opening-closing plates; Be arranged at the top of top hot plate 23 and can provide the 2nd of the required thermal source of insulation to be incubated thermal source 23a with the 1st insulation thermal source 14a; Be embedded in the bottom periphery of top hot plate 23, and can live the liner 24 in slit between the top hot plate 23 of heating kettle 13 in the body 1 and pot cover 2 at pot cover 2 closing state lower seals; The upper end is supported on enclosing cover 21, and the lower end is supported on pressure limiting valve pipe 25 and magnetic valve on the top hot plate 23; Also the upper end of pressure limiting valve pipe 25 can be enclosed within the outside that is positioned at enclosing cover 21, and the pressure limiting valve 25a of pressure limiting valve pipe 25 can be opened and closed according to different pressure.When the user need open pot cover 2 and cooks, at first press the breech lock 15 of electric cooker front, pot cover 2 and breech lock 15 are broken away from mutually, pot cover 2 will be the center with the jointed shaft 21a at its rear portion, rotate upward under the effect of hinged spring 32.Pot cover 2 is in case open, and the user just can take out heating kettle 13 from body 1, will treat then again heating kettle 13 to be reentered into body 1 after cooking food is put into heating kettle 13, can begin to cook after shutting pot cover.This electric pressure rice cooker need make when cooking and maintain high-temperature high-pressure state in the heating kettle, so be provided with the lid lock device that the heating kettle upper end can be locked in pot cover 2 bottom surfaces securely or both are separated especially.Fig. 2 is the partial enlarged drawing of lid lock device among Fig. 1.As shown in Figure 2, this lid lock device comprises the lock handle 27 that the top that protrudes in enclosing cover 21 and user can left rotation and right rotation; The upper end is incorporated on the lock handle 27 by connecting screw 28, but its lower end then rotatably is inserted in the inner cap 22 upper support hole 22a of pot cover 2 and the handle pin 29 of support locking handle 27; Mid portion is meander-shaped, and the one end is combined in the support 30 on the handle pin 29 integratedly; Be arranged on the top hot plate 23 and can be along its circumference rotation, and can accept the revolving force of the lock handle 27 that transmits by handle pin 29 and support 30, thus can be along the lock ring 31 of left and right directions rotation.At this moment, an end of support 30 insert be combined in the integrally formed operation protuberance 31a of lock ring 31 in.Fig. 3 is the upward view of pot cover among Fig. 1.As shown in Figure 3, the inside circumference along lock ring 31 is formed with a plurality of hook 31b mutually across a certain distance.Promptly from the bottom, lock ring 31 has gear shape.And,, and be formed with the hook 13a of a plurality of outside bendings mutually across a certain distance corresponding to the hook 31b of lock ring 31 along the upper end-face edge of heating kettle 13.When the user opened pot cover 2, the hook 31b on the lock ring 31 was inserted in respectively between the hook 13a on the heating kettle 13.So these hooks 13a, 31b will not disturb mutually when pot cover 2 was opened.But when cooking,, just need to pin heating kettle 13 in order to keep the high-temperature high-pressure state in the heating kettle 13.At this moment, the user can formerly cover heating kettle 13 fully with pot cover 2 and makes the lock handle 27 of holding electric cooker top under the state of its sealing and to a direction rotation.At this moment, handle pin 29 and the support 30 that combines with lock handle 27 also can rotate along same direction with lock handle 27.Because the operation protuberance 31a of lock ring 31 is mounted to an end of support 30, consequently along with the rotation lock ring 31 of lock handle 27 also will be along same direction rotation.Along with the rotation of lock ring 31, the hook 31b of the lock ring 31 between heating kettle 13 each hook 13a will slide into the bottom of each hook 13a on the heating kettle 13, thereby coincide mutually, and heating kettle 13 just can be locked on the pot cover 2 securely like this.Promptly under the situation that pot cover 2 is opened, the hook 31b of lock ring 31 lays respectively between the hook 13a of heating kettle 13 and does not disturb mutually.When locking during heating kettle 13,, just be necessary to limit its rotation amount for the hook 31b that makes lock ring 31 and the hook 13a of heating kettle 13 match.For this reason, in pot cover 2, also be provided with the not shown locking guider that only allows lock ring 31 to rotate within the specific limits usually.After culinary art finishes, the user can along with above-mentioned opposite direction spin locking handle 27, lock ring 31 and lock handle 27 are rotated together along same direction, and the hook 31b of lock ring 31 is skidded off under the hook 13a of heating kettle 13, thereby just can remove the lock-out state of heating kettle 13.But lock handle 27 and handle pin 29 are separated from each other in the lid lock device of this prior art, only depend on connecting screw to come combination between the two.So, when twist-lock handle 27, along with load concentration in handle pin 29, very easily occur handle pin damaged or use in problem such as wearing and tearing.In addition, owing to need produce each component parts such as lock handle, handle pin and support respectively, thus the quantity of parts is increased, but also can increase installation procedure, thereby producing cost also can increase thereupon.

Summary of the invention

In order to address the above problem, the object of the present invention is to provide and a kind ofly can obtain more stable support when making the lock handle rotary manipulation, thereby not only can improve its durability, but also the cover-locking device of pressure electric cooker that the required producing cost of each component parts of producing and installing this device is significantly reduced.

In order to achieve the above object, cover-locking device of pressure electric cooker provided by the invention is arranged on the lock handle that available rotation exposes to the outside together rotates lock ring, thereby make lock ring contact upper end selectively at heating kettle, thereby the locking or unclamp in the electric pressure rice cooker of heating kettle, it is to connect in the bottom of the lock handle of lower end elongation to insert horizontal stand, and be that the fast tapping of yi word pattern is fixed lock handle and support by nut, the lower end of fast tapping then spiral is inserted in the supported hole of inner cap.

Cover-locking device of pressure electric cooker provided by the invention is that to make the lock handle as the main composition parts be central shaft with fast tapping, make it be rotated motion in lower position, so not only can improve the operational stability and the durability of lock handle, but also can save the handle pin of prior art, thereby make its unitary construction simple, and reduced producing cost.

Description of drawings

Below in conjunction with the drawings and specific embodiments cover-locking device of pressure electric cooker of the present invention is elaborated.

Fig. 1 is the electric pressure rice cooker structure cutaway view of prior art.

Fig. 2 is the partial enlarged drawing of lid lock device among Fig. 1.

Fig. 3 is a pot cover upward view among Fig. 1.

Fig. 4 is a cover-locking device of pressure electric cooker partial enlarged drawing of the present invention.

The specific embodiment

In the present invention, the parts identical with prior art use identical symbol, and omit its explanation.Fig. 4 is a cover-locking device of pressure electric cooker partial enlarged drawing of the present invention.As shown in Figure 4, in the present invention, the lower end length of the lock handle 100 of cover-locking device of pressure electric cooker is shorter, thereby its lower end is near above the inner cap 22.Connect in the lower end of lock handle 100 and to be inserted with under the state of horizontal stand 101, will to be the quick attack spiral shell 102 of yi word pattern by nut combine with screw on the lock handle 100 end of support 101.The lower end of quick attack spiral shell 102 then spiral is inserted among the supported hole 22a of inner cap 22.When the user need lock the top of heating kettle 13, it should equally with prior art be held lock handle 100 and be rotated to a side.After lock handle 100 rotations, connecting the support 101 that is inserted in lock handle 100 lower ends also can be along same direction rotation.At this moment, an end level of support 101 is inserted in the operation protuberance 31a of lock ring 31, and the other end then level perforation is inserted in the lock handle 100, and support 101 just can stably transmit the revolving force of lock handle 100 like this.In addition, lock handle 100 is connected by fast tapping 102 with support 101, because there is cap the upper end of quick attack spiral shell 102, so be inserted at support 101 under the situation of lock handle 100, available fast tapping 102 interfixes the central part and the support 101 of lock handle 100.At the same time because the lower end of fast tapping 102 is outstanding to the below of lock handle 100, so its can rotate in the supported hole 22a that inserts inner cap 22, thereby have the rotating shaft function of lock handle 100 concurrently.Along with the rotation of support 101, it can make the operation protuberance 31a left rotation and right rotation of lock ring 31 in certain scope, thereby the hook 31b of lock ring 31 is optionally contacted with the hook 13a of heating kettle 13, finally locks or unclamps heating kettle 13.In lid lock device of the present invention, owing to lock handle 100 fixes by fast tapping 102, thereby it just can rotatablely move on the height lower than prior art.Therefore, when operational lock handle 100, even add heavy load, also can be than safer in the past.In addition, be inserted in the lock handle 100, can make the structure of lid lock device firmer like this, therefore can transmit bigger revolving force, and improve the durability of this device because support 101 connects.

Claims (1)

1, a kind of cover-locking device of pressure electric cooker, being arranged on the lock handle that available rotation exposes to the outside together rotates lock ring, thereby make lock ring contact upper end selectively at heating kettle, thereby the locking or unclamp in the electric pressure rice cooker of heating kettle, it is characterized in that: described cover-locking device of pressure electric cooker is to connect in the bottom of the lock handle (100) of lower end elongation to insert horizontal stand (101), and be that the fast tapping (102) of yi word pattern is fixing with lock handle (100) and support (101) by nut, the lower end of fast tapping (102) then spiral is inserted in the supported hole (22a) of inner cap (22).

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