CN212307603U

CN212307603U - Sealing washer, seal assembly, electric rice cooker a kind of deep pot lid and electric rice cooker

Info

Publication number: CN212307603U
Application number: CN202021230393.2U
Authority: CN
Inventors: 王俊; 程志斌; 夏鹏; 李振合; 陈伟; 曾国豪
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-08
Anticipated expiration: 2030-06-29

Abstract

The utility model provides a sealing washer among electric rice cooker a kind of deep pot lid, the electric rice cooker that has this kind of deep pot lid, the seal assembly in this kind of deep pot lid and this seal assembly, electric rice cooker a kind of deep pot lid includes: the inner cover is provided with an air outlet channel, the air outlet channel is provided with an accommodating cavity arranged in an inward opening manner and an air outlet hole arranged in an outward opening manner, and the accommodating cavity is communicated with the air outlet hole; the cover plate is detachably positioned at the open end of the accommodating cavity and is provided with a through air hole; the sealing assembly is annular and is positioned between the inner cover and the cover plate, the sealing assembly, the inner cover and the cover plate jointly define an accommodating cavity, and the accommodating cavity is communicated with the vent hole. The present steam valve structure of a kind of deep pot lid cancellation, by forming the steam valve between inner cup, apron and the seal assembly, reduce a kind of deep pot and cover spare part quantity to reduce a kind of deep pot and cover the volume, alleviate a kind of deep pot and cover weight, solved among the prior art steam valve and made a kind of deep pot to cover the problem that volume and weight increase, and assembly efficiency is high, low in production cost, easy cleanness.

Description

Sealing washer, seal assembly, electric rice cooker a kind of deep pot lid and electric rice cooker

Technical Field

The utility model belongs to the technical field of the domestic appliance technique and specifically relates to a sealing washer among electric rice cooker a kind of deep pot lid, the electric rice cooker that has this a kind of deep pot lid, the seal assembly in this a kind of deep pot lid and this seal assembly is related to.

Background

The electric cooker is a cooker which converts electric energy into heat energy, has various cooking functions of steaming, boiling, stewing and the like on food, is convenient to use, safe and reliable, and is widely applied to daily life. The cover of the electric cooker is usually provided with a steam valve which has the functions of exhausting and preventing overflow.

The existing steam valve is formed by assembling a plurality of parts such as a plurality of sealing rings, a steam valve seat and a steam valve cover through screws, the number of the parts is large, assembly time is large, especially, the screws are manually screwed for fastening, the screwing process is large in time, assembly efficiency is low, and production cost is greatly increased. Moreover, the number of parts of the existing steam valve is large, so that the volume of the cooker cover of the steam valve installed on the electric cooker is increased, the weight of the cooker cover is increased, the whole volume and the weight of the electric cooker are increased, a large placing space is occupied, and the use experience of a user is reduced.

Disclosure of Invention

The first purpose of the utility model is to provide an electric rice cooker a kind of deep pot lid that small, light in weight, easy cleanness, assembly efficiency are high and low in production cost.

The second objective of the utility model is to provide an electric rice cooker with the above electric rice cooker cover.

The third objective of the present invention is to provide a sealing ring with stable structure, good sealing performance and excellent elasticity.

The fourth purpose of the utility model is to provide a stable in structure, sealing performance is good, assembly efficiency is high and low in production cost's seal assembly.

In order to realize the utility model discloses a first purpose, the utility model provides an electric rice cooker a kind of deep pot lid, include: the inner cover is provided with an air outlet channel, the air outlet channel is provided with an accommodating cavity arranged in an inward opening manner and an air outlet hole arranged in an outward opening manner, and the accommodating cavity is communicated with the air outlet hole; the cover plate is detachably positioned at the open end of the accommodating cavity and is provided with a through air hole; the sealing assembly is annular and is positioned between the inner cover and the cover plate, the sealing assembly, the inner cover and the cover plate jointly define an accommodating cavity, and the accommodating cavity is communicated with the vent hole.

It is visible by above-mentioned scheme, seal assembly, inject jointly between inner cup and the apron and hold the chamber, the air vent of apron is linked together with electric rice cooker's culinary art chamber, it is linked together with the air vent to hold the chamber simultaneously, thereby the steam of culinary art intracavity can enter into from the air vent and hold the intracavity, discharge to electric rice cooker outside through the venthole that is linked together with holding the chamber again, make the inner cup, form the steam valve between apron and the seal assembly, play the exhaust, the effect of anti-overflow, the inside of having avoided steam to make dirty between inner cup and the apron has simultaneously been guaranteed to a kind of deep pot and. The utility model discloses current steam valve structure of electric rice cooker a kind of deep pot lid cancellation, by forming the steam valve between inner cup, apron and the seal assembly, play the effect of exhaust, anti-overflow, the spare part quantity of a kind of deep pot lid that significantly reduces a kind of deep pot volume of covering, alleviates a kind of deep pot weight of covering, has solved among the prior art steam valve and has makeed a kind of deep pot to cover the problem that volume and weight increase, simultaneously the utility model discloses the assembly efficiency height and the low in production cost of electric rice cooker a kind of deep pot lid. In addition, the cover plate can be conveniently detached and cleaned by a user by detachably mounting the cover plate to the open end of the accommodating cavity, and meanwhile, the backflow liquid steam in the accommodating cavity is convenient for the user to clean.

Preferably, the sealing assembly comprises a pressure plate and a sealing ring, the sealing ring is located between the inner cover and the cover plate, and the pressure plate is arranged on the sealing ring and fixes the sealing ring on the inner cover.

A plurality of clamping grooves are formed in the inner end face of the inner cover, a plurality of buckles are arranged on the first end face of the pressing plate, and one buckle penetrates through one clamping groove and is buckled on the end face, far away from the cover plate, of the clamping groove.

The further proposal is that the pressure plate is provided with a circular hole which is arranged in a penetrating way, the first end surface of the pressure plate is convexly provided with a circular ring bulge at the position adjacent to the circular hole, the sealing ring comprises a first mounting ring, a second mounting ring, a first sealing ring, a second sealing ring and a third sealing ring, the first mounting ring extends in the axial direction of the sealing ring, the second mounting ring is positioned in the first mounting ring and extends in the radial direction of the first mounting ring, the peripheral wall of the second mounting ring is connected with the inner peripheral wall of the first mounting ring, the first end of the adjacent second mounting ring and the first end of the first mounting ring have a break difference in the axial direction of the first mounting ring, the first sealing ring extends in the axial direction of the first mounting ring, the first end of the first sealing ring is connected with the inner peripheral wall of the second mounting ring, the first sealing ring and the first mounting ring have a first mounting gap in the radial direction of the first mounting ring, the first end of the second sealing ring is connected with the second end of the first sealing ring, the second end of the second sealing ring is far away from the axis of the first installation ring and extends in an inclined mode, the second end of the second sealing ring and the second end of the first installation ring are provided with a second installation gap in the axial direction of the first installation ring, the second installation gap is communicated with the first installation gap, the first end of the third sealing ring is connected with the second end of the second sealing ring, the second end of the third sealing ring is close to the axis of the first installation ring and extends in an inclined mode, the ring bulge penetrates through the second installation gap and is embedded into the first installation gap, the second end of the first installation ring is abutted against the first end face of the pressing plate, the peripheral wall of the second sealing ring is abutted against the second end face of the pressing plate, the peripheral wall of the third sealing ring is abutted against the cover plate, and the peripheral wall of the containing cavity is abutted against the inner peripheral wall of the first sealing ring.

Still further, the plurality of buckles are evenly distributed around the axis of the circular hole.

According to a further scheme, a first limiting groove is formed in the inner end face of the inner cover, and the first end of the first mounting ring is located in the first limiting groove.

According to a further scheme, a stop end face is connected between the first limiting groove and the accommodating cavity and abuts against the first end face of the second mounting ring, and a ring protruding rib is arranged on the stop end face in a protruding mode.

The further proposal is that the inner end surface of the inner cover is also provided with a second limit groove, and the pressing plate is positioned in the second limit groove.

In a further scheme, the inner peripheral wall of the first sealing ring is convexly provided with a ring convex rib.

The further scheme is that a circular ring groove is formed in the peripheral wall of the first sealing circular ring, and the circular ring groove and the circular ring convex rib are arranged in the radial direction of the first mounting circular ring oppositely.

In order to realize the utility model discloses a second purpose, the utility model provides an electric rice cooker, including a kind of deep pot lid, a kind of deep pot lid includes: the inner cover is provided with an air outlet channel, the air outlet channel is provided with an accommodating cavity arranged in an inward opening manner and an air outlet hole arranged in an outward opening manner, and the accommodating cavity is communicated with the air outlet hole; the cover plate is detachably positioned at the open end of the accommodating cavity and is provided with a through air hole; the sealing assembly is annular and is positioned between the inner cover and the cover plate, the sealing assembly, the inner cover and the cover plate jointly limit an accommodating cavity, and the accommodating cavity is communicated with the vent hole.

In order to realize the utility model discloses a third purpose, the utility model provides a sealing washer, include: a first mounting ring extending in an axial direction thereof; the second mounting ring is positioned in the first mounting ring and extends in the radial direction of the first mounting ring, the outer peripheral wall of the second mounting ring is connected with the inner peripheral wall of the first mounting ring, and the first end of the adjacent second mounting ring and the first end of the first mounting ring have a break difference in the axial direction of the first mounting ring; the first sealing ring extends in the axial direction of the first mounting ring, the first end of the first sealing ring is connected with the inner peripheral wall of the second mounting ring, a first mounting gap is formed between the first sealing ring and the first mounting ring in the radial direction of the first mounting ring, a ring groove is formed in the outer peripheral wall of the first sealing ring, and a ring convex rib is convexly arranged on the inner peripheral wall of the first sealing ring; the first end of the second sealing ring is connected with the second end of the first sealing ring, the second end of the second sealing ring extends away from the axis of the first mounting ring in an inclined mode, a second mounting gap is formed between the second sealing ring and the second end of the first mounting ring in the axial direction of the first mounting ring, and the second mounting gap is communicated with the first mounting gap; the first end of the third sealing ring is connected with the second end of the second sealing ring, and the second end of the third sealing ring extends in an inclined mode close to the axis of the first mounting ring.

It is visible by above-mentioned scheme, the sealing washer comprises first installation ring, second installation ring, first sealed ring, the sealed ring of second and the sealed ring of third, improves the overall structure stability of sealing washer, and the ring recess has been seted up to the periphery wall of first sealed ring simultaneously, and the internal perisporium protrusion of first sealed ring is provided with the protruding muscle of ring, when guaranteeing the good elastic property of sealing washer, can improve the structural stability and the sealing performance of sealing washer.

The inner peripheral wall of the second mounting ring is a first inclined peripheral wall, and the diameter of a first end, close to the first end of the first mounting ring, of the first inclined peripheral wall is larger than that of a second end, far away from the first end of the first mounting ring, of the first inclined peripheral wall.

The circumferential wall of the circular ring convex rib close to the second mounting ring is a second inclined circumferential wall, and the diameter of the first end of the second inclined circumferential wall close to the second mounting ring is larger than that of the second end of the second inclined circumferential wall far away from the second mounting ring.

In a further aspect, the annular groove and the annular rib are disposed opposite to each other in a radial direction of the first mounting ring.

In a further aspect, the second end of the third sealing ring has a preferably arcuate cross-section.

In order to realize the utility model discloses a fourth purpose, the utility model provides a seal assembly, including clamp plate and sealing washer, the sealing washer includes: a first mounting ring extending in an axial direction thereof; the second mounting ring is positioned in the first mounting ring and extends in the radial direction of the first mounting ring, the outer peripheral wall of the second mounting ring is connected with the inner peripheral wall of the first mounting ring, and the first end of the adjacent second mounting ring and the first end of the first mounting ring have a break difference in the axial direction of the first mounting ring; the first sealing ring extends in the axial direction of the first mounting ring, the first end of the first sealing ring is connected with the inner peripheral wall of the second mounting ring, a first mounting gap is formed between the first sealing ring and the first mounting ring in the radial direction of the first mounting ring, a ring groove is formed in the outer peripheral wall of the first sealing ring, and a ring convex rib is convexly arranged on the inner peripheral wall of the first sealing ring; the first end of the second sealing ring is connected with the second end of the first sealing ring, the second end of the second sealing ring extends away from the axis of the first mounting ring in an inclined mode, a second mounting gap is formed between the second sealing ring and the second end of the first mounting ring in the axial direction of the first mounting ring, and the second mounting gap is communicated with the first mounting gap; the first end of the third sealing ring is connected with the second end of the second sealing ring, and the second end of the third sealing ring obliquely extends close to the axis of the first mounting ring; the pressing plate is provided with a circular hole which penetrates through the pressing plate, a circular ring bulge is convexly arranged on the first end surface of the pressing plate at the position adjacent to the circular hole, and the first end surface of the pressing plate is provided with a plurality of buckles; the ring protrusion penetrates through the second mounting gap and is embedded into the first mounting gap, the second end of the first mounting ring is abutted against the first end face of the pressing plate, and the peripheral wall of the second sealing ring is abutted against the second end face of the pressing plate.

According to the scheme, the sealing assembly comprises the pressing plate and the sealing ring, the annular protrusion of the pressing plate penetrates through the second mounting gap of the sealing ring and is embedded into the first mounting gap of the sealing ring, the second end of the first mounting ring of the sealing ring is abutted against the first end face of the pressing plate, the peripheral wall of the second sealing ring of the sealing ring is abutted against the second end face of the pressing plate, the assembling efficiency of the sealing assembly is high, the production cost is low, and meanwhile, the structural stability and the sealing performance of the sealing assembly can be improved.

Further, each buckle is provided with a connecting arm and a clamping portion, the first end of each connecting arm is connected with the pressing plate, the second end of each connecting arm is connected with the corresponding clamping portion, the clamping portion protrudes out of the connecting arm to be arranged on the side face, away from the round hole, of each connecting arm, and the side face, away from the round hole, of each connecting arm is provided with a notch in the position, adjacent to the pressing plate.

Further, each buckle is provided with a rib which is respectively connected between the side surface of the connecting arm close to the round hole and the first end surface of the pressure plate.

The second end surface of the pressure plate is adjacent to the circular hole and is an inclined end surface, and the peripheral wall of the second sealing circular ring is abutted against the inclined end surface.

Drawings

Fig. 1 is a partially exploded view of an embodiment of a cover of an electric cooker.

Fig. 2 is a sectional view of the embodiment of the cover of the electric cooker.

Fig. 3 is a partially enlarged view of fig. 2.

Fig. 4 is a structure diagram of the matching of the outer cover and the inner cover in the embodiment of the cover of the electric cooker.

Fig. 5 is a partial sectional view showing the matching of the outer cover and the inner cover in the embodiment of the cover of the electric cooker of the present invention.

Fig. 6 is a structural diagram of a pressing plate in the embodiment of the cover of the electric cooker of the present invention.

Fig. 7 is a sectional view of the pressing plate in the embodiment of the cover of the electric cooker of the present invention.

Fig. 8 is a structural diagram of a sealing ring in the embodiment of the cover of the electric cooker of the present invention.

Fig. 9 is a sectional view of the sealing ring in the embodiment of the cover of the electric cooker of the present invention.

Fig. 10 is an enlarged view of fig. 9 at a.

Fig. 11 is a sectional view of the sealing assembly in the embodiment of the cover of the electric cooker of the present invention.

Fig. 12 is an enlarged view of fig. 11 at B.

Fig. 13 is a partial view showing a first assembled state of the cover of the electric cooker of the present invention.

Fig. 14 is a partial view showing a second assembled state of the cover of the electric rice cooker of the present invention.

Fig. 15 is a partial view of a third assembled state of the cover of the electric cooker of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Following embodiment is mainly to the utility model discloses electric rice cooker a kind of deep pot lid, because the utility model discloses electric rice cooker a kind of deep pot lid has adopted the utility model discloses a sealing assembly, and the utility model discloses a sealing assembly has used the utility model discloses a sealing washer has already explained sealing assembly embodiment and sealing washer embodiment in the explanation of electric rice cooker a kind of deep pot lid embodiment.

Referring to fig. 1 to 5, the electric cooker cover 1 includes an outer cover 2, an inner cover 3, a cover plate 4 and a sealing assembly 5, the inner cover 3 is provided with an air outlet channel 31, the air outlet channel 31 has an accommodating cavity 312 which is opened inwards and an air outlet 311 which is opened outwards, and the accommodating cavity 312 is communicated with the air outlet 311. The outer cover 2 covers the outer side of the inner cover 3, and the outer cover 2 is provided with a through hole 21 matched with the air outlet 311. The cover plate 4 is detachably located at the open end of the accommodating cavity 312, the cover plate 4 is provided with a plurality of vent holes 41 arranged in a penetrating manner, and the vent holes 41 are arranged at intervals. The sealing assembly 5 is annular and is located between the inner cover 3 and the cover plate 4, and the sealing assembly 5, the inner cover 3 and the cover plate 4 jointly define a containing cavity 312, and the containing cavity 312 is communicated with the vent hole 41. Have the clearance between inner cup 3 and the apron 4, sealing component 5 establishes in this clearance, thereby sealing component 5, it holds chamber 312 to inject jointly between inner cup 3 and the apron 4, the air vent 41 of apron 4 is linked together with electric rice cooker's culinary art chamber (not marking), it is linked together with air vent 41 to hold chamber 312 simultaneously, thereby the steam of culinary art intracavity can enter into from air vent 41 and hold chamber 312 in, discharge to electric rice cooker outside through the venthole 311 with holding chamber 312 and being linked together, make inner cup 3, form the steam valve between apron 4 and the sealing component 5, play the exhaust, the effect of anti-overflow, the inside of having avoided steam to make dirty between inner cup 3 and the apron 4 simultaneously, guarantee to cover 1 inside clean. The utility model discloses current steam valve structure of electric rice cooker a kind of deep pot lid 1 cancellation, by inner cup 3, apron 4 and seal assembly 5 between form the steam valve, play the effect of exhaust, anti-overflow, the spare part quantity of a kind of deep pot lid 1 that significantly reduces a kind of deep pot lid 1's volume, alleviates a kind of deep pot lid 1's weight, has solved among the prior art steam valve and has made a kind of deep pot lid 1 volume and the problem that weight increases, simultaneously the utility model discloses electric rice cooker a kind of deep pot lid 1's assembly efficiency is high and low in production cost. In addition, by detachably mounting cover plate 4 to the open end of receiving cavity 312, it is possible to facilitate the user to detach and clean cover plate 4, and at the same time, to facilitate the user to clean the backflow liquid vapor inside receiving cavity 312.

Referring to fig. 6 to 12, the sealing assembly 5 includes a pressing plate 51 and a sealing ring 52, the sealing ring 52 is located between the inner lid 3 and the cover plate 4, the pressing plate 51 is provided on the sealing ring 52 and fixes the sealing ring 52 to the inner lid 3. Specifically, the seal ring 52 includes a first mounting ring 521, a second mounting ring 522, a first sealing ring 523, a second sealing ring 524, and a third sealing ring 525, the first mounting ring 521 extends in the axial direction thereof, the second mounting ring 522 is located in the first mounting ring 521 and extends in the radial direction of the first mounting ring 521, the outer peripheral wall of the second mounting ring 522 is connected to the inner peripheral wall of the first mounting ring 521, and a first end of the adjacent second mounting ring 522 and a first end of the first mounting ring 521 have a step in the axial direction of the first mounting ring 521. The first sealing ring 523 extends in the axial direction of the first mounting ring 521, a first end of the first sealing ring 523 is connected to an inner circumferential wall of the second mounting ring 522, and the first sealing ring 523 and the first mounting ring 521 have a first mounting gap 526 in the radial direction of the first mounting ring 521. The first end of the second sealing ring 524 is connected with the second end of the first sealing ring 523, the second end of the second sealing ring 524 extends away from the axis of the first mounting ring 521 in an inclined manner, the second sealing ring 524 and the second end of the first mounting ring 521 have a second mounting gap 527 in the axial direction of the first mounting ring 521, and the second mounting gap 527 is communicated with the first mounting gap 526. The first end of the third sealing ring 525 is connected with the second end of the second sealing ring 524, and the second end of the third sealing ring 525 extends obliquely near the axis of the first mounting ring 521.

The peripheral wall of the first sealed ring 523 of this embodiment has been seted up ring groove 5231, and the protrusion of the internal perisporium of first sealed ring 523 is provided with annular protruding muscle 5232, and ring groove 5231 and annular protruding muscle 5232 are relative setting in the footpath of first installation ring 521, when sealing washer 52 obtained good elastic property, can improve sealing washer 52's structural stability. Wherein, the cross section of ring groove 5231 is arc, and the cross section of the second end of third sealed ring 525 is the major arc shape, and when installing the apron 4 to the open end of the chamber 312 that holds of inner cup 3, apron 4 supports when pressing the periphery wall at third sealed ring 525, can prevent that third sealed ring 525 from turning up, avoids leading to can not sealing connection between apron 4 and the inner cup 3. In addition, the second end of the second sealing ring 524 protrudes from the outer circumferential wall of the first mounting ring 521 in the radial direction of the first mounting ring 521, the inner circumferential wall of the second mounting ring 522 is a first inclined circumferential wall 5221, and the diameter of the first end of the first inclined circumferential wall 5221 close to the first end of the first mounting ring 521 is larger than the diameter of the second end of the first inclined circumferential wall 5221 away from the first end of the first mounting ring 521. Meanwhile, the peripheral wall of the annular rib 5232 close to the second mounting ring 522 is a second inclined peripheral wall 52321, and the diameter of the first end of the second inclined peripheral wall 52321 close to the second mounting ring 522 is larger than the diameter of the second end of the second inclined peripheral wall 52321 far away from the second mounting ring 522.

The pressing plate 51 is provided with a circular hole 513 penetrating through the pressing plate, a circular ring protrusion 512 is convexly arranged on a first end surface of the pressing plate 51 adjacent to the circular hole 513, and six buckles 511 are arranged on the first end surface of the pressing plate 51, and the six buckles 511 are uniformly distributed around the axis of the circular hole 513 in this embodiment. Six clamping grooves 32 are formed in the inner end face of the inner cover 3, and one clamping buckle 511 penetrates through one clamping groove 32 and is buckled on the end face, far away from the cover plate 4, of the clamping groove 32. The annular protrusion 512 penetrates through the second mounting gap 527 and is embedded into the first mounting gap 526, the second end of the first mounting ring 521 abuts against the first end face of the pressing plate 51, the outer peripheral wall of the second sealing ring 524 abuts against the second end face of the pressing plate 51, the outer peripheral wall of the third sealing ring 525 abuts against the cover plate 4, and the outer peripheral wall of the accommodating cavity 312 abuts against the inner peripheral wall of the first sealing ring 523. The second end surface of the pressure plate 51 of the present embodiment is an inclined end surface 514 adjacent to the circular hole 513, and the outer peripheral wall of the second sealing ring 524 abuts against the inclined end surface 514.

Specifically, the inner end surface of the inner lid 3 is provided with a first limiting groove 33, and the first end of the first mounting ring 521 is located in the first limiting groove 33. A stop end surface 34 is connected between the first limiting groove 33 and the accommodating cavity 312, the stop end surface 34 abuts against the first end surface of the second mounting ring 522, and the stop end surface 34 is convexly provided with a ring convex rib 341. The inner end surface of the inner cover 3 is further provided with a second limiting groove 31, and the pressing plate 51 is located in the second limiting groove 31.

Each buckle 511 of the present embodiment has a connecting arm 5111, a clamping portion 5112 and two ribs 5114, a first end of the connecting arm 5111 is connected to the pressing plate 51, a second end of the connecting arm 5111 is connected to the clamping portion 5112, the clamping portion 5112 protrudes out of the side surface of the connecting arm 5111 away from the circular hole 513, and a slot 5113 is formed in the side surface of the connecting arm 5111 away from the circular hole 513 at a position adjacent to the pressing plate 51. Two ribs 5114 are located on both sides of the connecting arm 5111 in the circumferential direction of the pressure plate 51, and each rib 5114 is connected between the side surface of the connecting arm 5111 near the circular hole 513 and the first end surface of the pressure plate 51. The side surface of each slot 32 far from the circular hole 513 is an inclined guide surface 321 at the end surface adjacent to the slot 32 far from the cover plate 4, and the distance between one end of the inclined guide surface 321 far from the cover plate 4 and the axis of the circular hole 513 is smaller than the distance between the other end of the inclined guide surface near the cover plate 4 and the axis of the circular hole 513.

Referring to fig. 13 to 15, the annular protrusion 512 of the pressure plate 51 passes through the second mounting gap 527 of the sealing ring 52 and is embedded in the first mounting gap 526 of the sealing ring 52, the second end of the first mounting ring 521 of the sealing ring 52 abuts against the first end surface of the pressure plate 51, and the outer peripheral wall of the second sealing ring 524 of the sealing ring 52 abuts against the inclined end surface 514 of the second end surface of the pressure plate 51, so that the sealing ring 52 is tightly and stably assembled on the pressure plate 51 to form the sealing assembly 5, and meanwhile, the pressure plate 51 pre-positions the sealing ring 52. Subsequently, the sealing assembly 5 is assembled to the inner cap 3, specifically, the six snap tabs 511 of the pressing plate 51 are aligned with the six snap slots 32 of the inner cap 3 one by one and the pressing plate 51 is pressed so that the snap tabs 511 enter the snap slots 32, and the snap-fit portions 5112 of the snap tabs 511 pass through the snap slots 32 by being guided by the inclined guide surfaces 321 of the snap slots 32 and are snapped on the end surfaces of the snap slots 32 away from the cover plate 4, so that the sealing assembly 5 and the inner cap 3 are firmly assembled together. At this time, the open end of the accommodating cavity 312 of the inner cover 3 slides into the first sealing ring 523 of the sealing ring 52 under the guidance of the first inclined peripheral wall 5221 of the second mounting ring 522 of the sealing ring 52 and the second inclined peripheral wall 52321 of the annular rib 5232, the outer peripheral wall of the accommodating cavity 312 is pressed against the inner peripheral wall of the first sealing ring 523, and the annular rib 5232 on the inner peripheral wall of the first sealing ring 523 is pressed against the outer peripheral wall of the accommodating cavity 312, so that the matching sealing performance is improved. Meanwhile, the first end of the first mounting ring 521 of the sealing ring 52 is located in the first limiting groove 33 of the inner cover 3, the pressing plate 51 is located in the second limiting groove 31 of the inner cover 3, the stop end face 34 of the inner cover 3 abuts against the first end face of the second mounting ring 522 of the sealing ring 52, and the convex ring convex rib 341 of the stop end face 34 abuts against the first end face of the second mounting ring 522 of the sealing ring 52, so that the matched sealing performance is improved. Then, the cover plate 4 is installed at the open end of the accommodating cavity 312 of the inner cover 3, and the peripheral wall of the third sealing ring 525 of the sealing ring 52 is pressed against the cover plate 4, so that the matching sealing performance is improved.

The electric cooker of this embodiment a kind of deep pot lid 1's assembly efficiency is high, low in production cost, assembles the effect that reaches the steam valve through inner cup 3, apron 4, a sealing washer 52 and a clamp plate 51, avoids steam to make dirty with the inside between inner cup 3 and the apron 4, guarantees a kind of deep pot lid 1 inside clean. The existing steam valve is cancelled, the effect of the steam valve is achieved by assembling the inner cover 3, the cover plate 4, the sealing ring 52 and the pressing plate 51, the number of parts of the cooker cover 1 is greatly reduced, the size of the cooker cover 1 is reduced, the weight of the cooker cover 1 is reduced, and the problem that the steam valve increases the size and the weight of the cooker cover 1 in the prior art is solved. Moreover, the cover plate 4 is detachably mounted to the open end of the accommodating chamber 312, which facilitates the user to detach and clean the cover plate 4, and also facilitates the user to clean the backflow liquid vapor in the accommodating chamber 312.

Above embodiment is the preferred example of the utility model, and not the restriction the utility model discloses the range of implementing, the event all according to the utility model discloses the equivalent change or the decoration that structure, characteristic and principle were done of application for patent scope all should be included in the utility model discloses the patent application scope.

Claims

1. Electric rice cooker cover, its characterized in that includes:

the inner cover is provided with an air outlet channel, the air outlet channel is provided with an accommodating cavity arranged in an inward opening manner and an air outlet hole arranged in an outward opening manner, and the accommodating cavity is communicated with the air outlet hole;

the cover plate is detachably positioned at the open end of the accommodating cavity and is provided with a through vent hole;

the sealing assembly is annular and is positioned between the inner cover and the cover plate, the sealing assembly, the inner cover and the cover plate jointly limit the accommodating cavity, and the accommodating cavity is communicated with the vent hole.

2. The electric cooker cover of claim 1, characterized in that:

the sealing assembly comprises a pressing plate and a sealing ring, the sealing ring is located between the inner cover and the cover plate, and the pressing plate is arranged on the sealing ring and fixes the sealing ring on the inner cover.

3. The electric cooker cover of claim 2, characterized in that:

a plurality of clamping grooves are formed in the inner end face of the inner cover, a plurality of buckles are arranged on the first end face of the pressing plate, and one buckle penetrates one clamping groove and is buckled on the end face, far away from the cover plate, of the clamping groove.

4. The electric cooker cover of claim 3, characterized in that:

the pressing plate is provided with a circular hole which penetrates through the pressing plate, and a circular ring bulge is convexly arranged on the first end surface of the pressing plate at the position adjacent to the circular hole;

the sealing ring comprises a first mounting ring, a second mounting ring, a first sealing ring, a second sealing ring and a third sealing ring, the first mounting ring extends in the axial direction of the first mounting ring, the second mounting ring is positioned in the first mounting ring and extends in the radial direction of the first mounting ring, the outer peripheral wall of the second mounting ring is connected with the inner peripheral wall of the first mounting ring, and the adjacent first end of the second mounting ring and the first end of the first mounting ring have a break difference in the axial direction of the first mounting ring;

the first sealing ring extends in the axial direction of the first mounting ring, the first end of the first sealing ring is connected with the inner peripheral wall of the second mounting ring, and the first sealing ring and the first mounting ring have a first mounting gap in the radial direction of the first mounting ring;

the first end of the second sealing ring is connected with the second end of the first sealing ring, the second end of the second sealing ring extends away from the axis of the first mounting ring in an inclined manner, a second mounting gap is formed between the second sealing ring and the second end of the first mounting ring in the axial direction of the first mounting ring, and the second mounting gap is communicated with the first mounting gap;

the first end of the third sealing ring is connected with the second end of the second sealing ring, and the second end of the third sealing ring extends in an inclined manner close to the axis of the first mounting ring;

the ring is protruding to be passed second installation clearance and embedding are in the first installation clearance, the second end of first installation ring supports and leans on the first terminal surface of clamp plate, the periphery wall of the sealed ring of second supports and leans on the second terminal surface of clamp plate, the periphery wall of the sealed ring of third supports and presses on the apron, the periphery wall that holds the chamber supports and presses on the internal perisporium of first sealed ring.

5. The electric cooker cover of claim 4, characterized in that:

the plurality of buckles are uniformly distributed around the axis of the round hole.

6. The electric cooker cover of claim 4, characterized in that:

a first limiting groove is formed in the inner end face of the inner cover, and the first end of the first mounting ring is located in the first limiting groove.

7. The electric cooker cover of claim 6, wherein:

a stop end face is connected between the first limiting groove and the accommodating cavity and abuts against the first end face of the second mounting ring, and a ring protruding rib is arranged on the stop end face in a protruding mode.

8. The electric cooker cover of claim 4, characterized in that:

the inner end face of the inner cover is further provided with a second limiting groove, and the pressing plate is located in the second limiting groove.

9. The electric cooker cover of claim 4, characterized in that:

the inner peripheral wall of the first sealing ring is convexly provided with a ring convex rib.

10. The electric cooker cover of claim 9, wherein:

the ring recess has been seted up to the periphery wall of first sealed ring, the ring recess with the protruding muscle of ring is in the relative setting in footpath of first installation ring.

11. Electric rice cooker, including a kind of deep pot lid, its characterized in that:

the cover is as claimed in any one of claims 1 to 10.

12. Sealing washer, its characterized in that includes:

a first mounting ring extending in an axial direction thereof;

the second mounting ring is positioned in the first mounting ring and extends in the radial direction of the first mounting ring, the outer peripheral wall of the second mounting ring is connected with the inner peripheral wall of the first mounting ring, and the first end of the second mounting ring and the first end of the first mounting ring which are adjacent have a break difference in the axial direction of the first mounting ring;

the first sealing ring extends in the axial direction of the first mounting ring, the first end of the first sealing ring is connected with the inner peripheral wall of the second mounting ring, a first mounting gap is formed between the first sealing ring and the first mounting ring in the radial direction of the first mounting ring, a ring groove is formed in the outer peripheral wall of the first sealing ring, and a ring convex rib is convexly arranged on the inner peripheral wall of the first sealing ring;

a first end of the second sealing ring is connected with a second end of the first sealing ring, the second end of the second sealing ring extends away from the axis of the first mounting ring in an inclined manner, a second mounting gap is formed between the second sealing ring and the second end of the first mounting ring in the axial direction of the first mounting ring, and the second mounting gap is communicated with the first mounting gap;

the first end of third sealed ring with the second end of second sealed ring is connected, the second end of third sealed ring is close to the axis slope of first installation ring extends.

13. The seal ring according to claim 12, wherein:

14. The seal ring according to claim 12, wherein:

the peripheral wall of the circular ring convex rib close to the second mounting circular ring is a second inclined peripheral wall, and the diameter of the first end of the second inclined peripheral wall close to the second mounting circular ring is larger than that of the second end of the second inclined peripheral wall far away from the second mounting circular ring.

15. The seal ring according to claim 12, wherein:

the circular groove and the circular convex rib are arranged oppositely in the radial direction of the first installation circular ring.

16. A seal ring according to any one of claims 12 to 15, wherein:

the cross section of the second end of the third sealing ring is in a preferred arc shape.

17. A seal assembly comprising a pressure plate and a seal ring, said seal ring being a seal ring according to any one of claims 12 to 16;

the pressing plate is provided with a circular hole which penetrates through the pressing plate, a circular ring bulge is convexly arranged on the first end surface of the pressing plate at the position adjacent to the circular hole, and the first end surface of the pressing plate is provided with a plurality of buckles;

the ring bulge passes the second installation clearance and imbeds in the first installation clearance, the second end of first installation ring supports and leans on the first terminal surface of clamp plate, the periphery wall of the sealed ring of second supports and leans on the second terminal surface of clamp plate.

18. The seal assembly of claim 17, wherein:

each buckle has connecting arm and block portion, the first end of connecting arm with the clamp plate is connected, the second end of connecting arm with block portion is connected, block portion protrusion the connecting arm is kept away from the side setting of round hole, the connecting arm is kept away from the side of round hole is in bordering on the clamp plate department has seted up the fluting.

19. The seal assembly of claim 18, wherein:

each buckle still has the rib, the rib is connected respectively the connecting arm is close to the side of round hole with between the first terminal surface of clamp plate.

20. The seal assembly of any one of claims 17 to 19, wherein:

the second end surface of the pressing plate is adjacent to the circular hole and is an inclined end surface, and the peripheral wall of the second sealing ring abuts against the inclined end surface.