阅读说明：本技术 一种洗碗机密封盖及洗碗机 (Dish washer seals lid and dish washer ) 是由 张永奎 杨林 郝素 侯琳 徐伟 吴玲 于 2019-03-07 设计创作，主要内容包括：本发明提供了一种洗碗机密封盖及洗碗机,所述密封盖包括盖体、以及装配固定在所述盖体上的密封件,所述密封件具有圆形的密封囊、沿所述密封囊向上延伸设置的用于装配固定的装配部、以及沿所述密封囊延伸设置的多个密封唇。通过设置密封件具有圆形的密封囊、装配部、以及多个密封唇,增加密封性,以及装配后的牢固性；设置为圆形的密封囊,有利于增加结构强度,有利于保证密封囊在被压缩变形后的密封紧密型、以及密封盖打开后的复位能力；通过设置密封唇进一步增加与内胆之间的密封性,以及避免洗涤水沿密封囊的弧形表面向外渗透。(The invention provides a sealing cover of a dishwasher and the dishwasher, wherein the sealing cover comprises a cover body and a sealing element which is assembled and fixed on the cover body, and the sealing element is provided with a circular sealing bag, an assembling part which extends upwards along the sealing bag and is used for assembling and fixing, and a plurality of sealing lips which extend along the sealing bag. The sealing element is provided with the round sealing bag, the assembling part and the plurality of sealing lips, so that the sealing property and the firmness after assembling are improved; the round sealing bag is beneficial to increasing the structural strength and ensuring the sealing tightness of the sealing bag after being compressed and deformed and the resetting capability of the sealing cover after being opened; the sealing performance between the washing machine and the inner container is further increased by arranging the sealing lip, and the washing water is prevented from permeating outwards along the arc-shaped surface of the sealing bag.)

1. The sealing cover for the dish washer comprises a cover body and a sealing element which is assembled and fixed on the cover body, and is characterized in that the sealing element is provided with a circular sealing bag, an assembling part which extends upwards along the sealing bag and is used for assembling and fixing, and a plurality of sealing lips which extend along the sealing bag.

2. The sealing cover for a dishwasher according to claim 1 wherein the fitting part has a vertically disposed fitting bar, a plurality of barb-shaped seal fixing ribs extending along inner and outer sidewalls of the fitting bar, and a fitting fixing head disposed at a top of the fitting bar.

3. The sealing cover for a dishwasher of claim 1 wherein a plurality of the sealing lips are symmetrically disposed in an inner and outer direction of the dishwasher.

4. A dish washer is characterized by comprising an inner container and an open sealing cover of any one of claims 1 to 3 for sealing the inner container of the dish washer, wherein the cover body is provided with an assembling hole matched with the assembling part, and the assembling part is fixed with the assembling hole.

5. The dishwasher of claim 4, wherein the fitting portion has a vertically disposed fitting rod, and a plurality of barb-shaped seal fixing ribs extending along inner and outer sidewalls of the fitting rod, the seal fixing ribs being interference-fitted in the fitting holes.

6. The dishwasher of claim 5, wherein the sealing member further comprises an assembly fixing head disposed at a top portion of the assembly rod, the assembly hole is a through hole, and the assembly fixing head is stopped at an upper end surface of the assembly hole.

7. The dishwasher of claim 4, wherein the seal further comprises a support seal rib stopped at a lower end surface of the fitting hole; after the sealing cover is buckled, the sealing bag is extruded and deformed, and upward force is applied to the sealing support rib, so that the sealing support rib is pressed at the lower end of the assembling hole, and sealing is realized.

8. The dishwasher of claim 7, wherein the support sealing rib comprises an inwardly extending portion and an outwardly extending portion, a notch matching the inwardly extending portion is provided on the cover at the lower end surface of the fitting hole, and the inwardly extending portion is located in the notch.

9. The dishwasher of claim 8, wherein the outer end of the outer extension part is provided with a raised part bent upwards, the raised part is pressed on the cover body, and the size of the inside and outside direction of the inner extension part is smaller than the size of the inside and outside direction of the outer extension part.

10. The dishwasher of claim 6, wherein the fitting hole has a hole body having a width gradually decreasing upward, and a constricted portion at an upper end of the hole body, the constricted portion matching a thickness of the fitting rod, and the fitting fixing head matching a width of the hole body.

Technical Field

The invention belongs to the technical field of dish-washing machines, and particularly relates to a dish-washing machine sealing cover and a dish-washing machine with the same.

Background

The drawer type dish washer generally comprises a box body and a drawer capable of being pulled, wherein an inner container with an upper opening is arranged on the drawer, and a sealing cover for sealing the upper opening of the inner container is arranged in order to prevent washing water from being sprayed out of the inner container and flowing to an area between the inner container and the box body in the washing process; when the tableware is cleaned, the upper opening of the inner container is sealed by the sealing cover, so that the washing water cannot seep out of the inner container.

In the operation process of the drawer type dish washing machine, the sealing cover of the drawer type dish washing machine covers the inner container and is sealed, and meanwhile, after the operation of the drawer type dish washing machine is finished, the sealing cover is separated from the inner container to take and place tableware. The sealing cover is provided with the annular sealing element, the sealing element is assembled on the sealing cover, the assembly effect of the existing sealing element and the sealing cover is poor, and the sealing ring has larger elasticity, so that when the sealing ring and an embedded groove which is assembled and fixed on the sealing cover are assembled and fixed, the length change is difficult to control, the local excessive compression or excessive stretching can be frequently caused, the unevenness of the sealing ring is caused, the sealing failure is easily caused, the local accelerated aging of the sealing ring is easy to cause, and the attractiveness of the whole barrel cover is influenced; in order to ensure the embedding quality of the sealing ring, a large amount of working hours are needed, the manufacturing efficiency of the barrel cover is influenced, and the manufacturing cost is greatly improved.

Disclosure of Invention

The invention provides a sealing cover of a dish washer, aiming at the problems in the prior art, and the sealing performance is improved by the structure of a sealing piece.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

a sealing cover of dish washer is composed of a cover body, a sealing part fixed to said cover body and with a circular sealing bag, a fixing part extended upward along said sealing bag for fixing it, and multiple sealing lips extended along said sealing bag.

Further, a plurality of the sealing lips are symmetrically arranged in the inner and outer directions of the dishwasher.

Further, the sealing lip is arranged along the radial extension of the sealing capsule.

Further, the assembly portion has the assembly pole of vertical setting, follows the sealed fixed muscle of a plurality of barb shapes that the inside and outside lateral wall of assembly pole extended the setting and set up the assembly fixed head at assembly pole top.

Furthermore, the sealing fixing ribs arranged on the assembling rod are arranged symmetrically inside and outside or alternatively.

Further, the sealing member further comprises a support sealing rib assembled with the cover body.

Further, the ratio of the thickness of the assembling rod to the wall thickness of the sealing bag is 5-7.

Further, the thickness of the supporting sealing rib is larger than or equal to the wall thickness of the sealing bag.

Based on the sealing element of the dishwasher, the invention also provides the dishwasher with the sealing element, which increases the sealing property and the firmness after assembly by arranging the sealing element.

The utility model provides a dish washer, includes the inner bag, is used for the above-mentioned sealed lid of open of sealed dish washer inner bag, offers the pilot hole that matches with assembly portion on the lid, assembly portion is fixed with the pilot hole.

Further, the assembly portion has the assembly pole of vertical setting and follows the sealed fixed muscle of a plurality of barb shapes that the inside and outside lateral wall of assembly pole extended the setting, sealed fixed muscle interference fit is in the assembly hole.

Furthermore, the sealing element also comprises an assembly fixing head arranged at the top of the assembly rod, the assembly hole is a through hole, the assembly fixing head is blocked at the upper end surface of the assembly hole,

furthermore, the sealing element also comprises a supporting sealing rib which is blocked on the lower end surface of the assembling hole; after the sealing cover is buckled, the sealing bag is extruded and deformed, and upward force is applied to the sealing support rib, so that the sealing support rib is pressed at the lower end of the assembling hole, and sealing is realized.

Furthermore, the support sealing rib comprises an inner extending portion extending inwards and an outer extending portion extending outwards, a notch matched with the inner extending portion is formed in the cover body on the lower end face of the assembling hole, and the inner extending portion is located in the notch.

Furthermore, the outer end of the outer extension part is provided with a tilting part which bends upwards, the tilting part is pressed on the cover body, and the size of the inner and outer directions of the inner extension part is smaller than the size of the inner and outer directions of the outer extension part.

Furthermore, the pilot hole has the hole body and is located the throat of hole body upper end, the width of the hole body upwards reduces gradually, the throat with the thickness phase-match of assembly pole, the assembly fixed head with the width phase-match of the hole body.

The dish washer sealing cover provided by the invention has the advantages that the sealing element is provided with the circular sealing bag, the assembling part and the plurality of sealing lips, so that the sealing property and the firmness after assembling are improved; the round sealing bag is beneficial to increasing the structural strength and ensuring the sealing tightness of the sealing bag after being compressed and deformed and the resetting capability of the sealing cover after being opened; the sealing performance between the washing machine and the inner container is further increased by arranging the sealing lip, and the washing water is prevented from permeating outwards along the arc-shaped surface of the sealing bag.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a sealing cover of a dishwasher according to the present invention;

FIG. 2 is a schematic top view of the sealing cover and the inner container shown in FIG. 1 after being fastened together;

FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;

FIG. 4 is an enlarged schematic view of a portion of the structure of FIG. 3;

FIG. 5 is a schematic structural diagram of the cover in FIG. 4;

FIG. 6 is an enlarged schematic view of the seal of FIG. 4;

FIG. 7 is a schematic structural view of the inner container shown in FIG. 1;

FIG. 8 is a cross-sectional structural view of the top frame of FIG. 7;

FIG. 9 is an enlarged schematic view of region E in FIG. 8;

fig. 10 is an enlarged cross-sectional view of the top frame of fig. 9.

FIG. 11 is a schematic structural view of a second embodiment of a sealing cover of a dishwasher according to the present invention;

FIG. 12 is an enlarged schematic view of a portion of the structure of FIG. 11;

FIG. 13 is a schematic structural view of the cover of FIG. 12;

FIG. 14 is an enlarged schematic view of the seal of FIG. 12; .

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "inside", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the positional relationships shown in the drawings, and the side close to the user in the normal use state of the product is "front", and the side away from the user is "rear". The terminology is for the purpose of describing the invention only and is for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operated, and is not to be considered limiting of the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-10, a first embodiment of a sealing cover of a dishwasher according to the present invention includes a cabinet 1, a liner 2 drawably received in the cabinet 1, and a sealing cover 3 for sealing an upper opening of the liner 2; the dishwasher sealing cover 3 includes a cover body 31, and a sealing member 32 fitted and fixed to the cover body 31, the sealing member 32 having a circular sealing capsule 321, a fitting portion 322 extending upward along the sealing capsule 321, and a plurality of sealing lips 323 extending along the sealing capsule 322, the sealing member 32 being fitted to the cover body 31 through the fitting portion 322. By providing the sealing member 32 with the sealing capsule 321, the fitting portion 322, and the plurality of sealing lips 323, which are circular, the sealing property is increased, and the firmness after fitting is increased; the round sealing bag 321 is beneficial to increasing the structural strength and ensuring the sealing tightness of the sealing bag 321 after being compressed and deformed and the resetting capability of the sealing cover after being opened; the sealability with the inner tub is further increased by the provision of the sealing lip 323, and the washing water is prevented from permeating outwardly along the arc-shaped surface of the sealing bladder 321.

The sealing member 32 is made of an elastic material, such as rubber, silicone, etc. The capsule 321 is a circular capsule wall surrounding a cavity forming a circle, or the capsule 321 is an oval, preferably the capsule 321 is arranged to be circular. After the sealing cover 3 is buckled at the open end of the inner container 2, the sealing bag 321 is extruded and deformed and is pressed on the inner container 2, and the sealing lip 323 is tightly attached to the inner container 2; for the arrangement of the sealing lip 323, the sealing lip 323 is preferably arranged in an inclined manner, the direction close to the center of the inner container 2 is taken as the inner direction, and a plurality of sealing lips 323 are symmetrically arranged in the inner and outer directions of the dishwasher, so that the degrees of the inner and outer squeezed parts of the sealing element 32 are the same, and the tightness is increased; the sealing lips 232 are preferably provided in two symmetrically arranged inside and outside, and the sealing lip 323 is provided extending in the radial direction of the sealing capsule 321.

With respect to the arrangement of the fitting portion 322, referring to fig. 4-6, the fitting portion 322 has a vertically arranged fitting rod 3221, a plurality of barb-shaped sealing and fixing ribs 3222 arranged to extend along the inner and outer sidewalls of the fitting rod 3221, and a fitting and fixing head 3223 arranged at the top of the fitting rod 3221. The cover 31 is provided with a mounting hole 311 matching the mounting portion 322, and the mounting portion 322 is fixed to the mounting hole 311. The assembling hole 311 is a through hole in the vertical direction, the assembling fixing head 3223 is stopped at the upper end surface of the assembling hole 311, and the sealing fixing rib 3222 is assembled in the assembling hole 311 in an interference manner; when the fitting portion 322 is fitted into the fitting hole 311 from below to above, the seal fixing rib 3222 is pressed and deformed in a direction approaching the fitting rod 3221, and the seal fixing rib 3222 is in close contact with the inner wall of the fitting hole 311; the sealing fixing rib 3222 is arranged to be barb-shaped, that is, the sealing fixing rib 3222 is arranged to be inclined downward, after the sealing element 32 is assembled and fixed, when the assembling portion 322 is subjected to downward force, the sealing fixing rib 3222 continues to be extruded and deformed, and due to the barb-shaped arrangement, the downward movement of the assembling rod 3221 is stopped by the sealing fixing rib 3222, so that the stability after the assembling portion 322 is installed in the assembling hole 311 is improved; the assembling fixing head 3223 is arranged to stop at the upper end surface of the assembling hole 311, so that the trend that the sealing element 32 moves downwards to be separated from the assembling hole 311 is further stopped; meanwhile, the sealing fixing ribs 3222 are arranged, so that the assembly holes 311 are sealed by the sealing fixing ribs 3222, and water vapor, foam and the like are prevented from overflowing outwards through the assembly holes 311.

As for the arrangement manner of the sealing fixing ribs 3222 on the assembling rod 3221, one arrangement manner is that the sealing fixing ribs 3222 are symmetrically arranged inside and outside, as shown in fig. 6, so that the inside and outside stress is balanced, and especially, when a downward force is applied, the force received by the sealing fixing ribs 3222 on the inside and outside sides is transmitted to the position of the assembling rod 3221 at the same height, so that the assembling rod 3221 is not distorted and deformed, and the failure of the sealing fixing ribs 3222 is avoided.

In another arrangement, the sealing fixing ribs 3222 are alternately arranged inside and outside in the vertical direction, and the alternate arrangement facilitates the deformation of the sealing fixing ribs 3222 and facilitates the assembly of the assembling portion 322.

As shown in fig. 4 to 6, the sealing member 32 further includes a supporting sealing rib 323 assembled with the cover 31, and the sealing supporting rib 33 is stopped at the lower end surface of the assembling hole 322; when the sealing cap 3 is fastened, the sealing capsule 321 is pressed and deformed, and an upward force is applied to the supporting sealing rib 323, so that the sealing supporting rib 33 is pressed against the lower end of the fitting hole 322, thereby achieving sealing. By arranging the supporting sealing ribs 323, after the sealing cover 3 is buckled, the sealing bag 321 is extruded and deformed, the sealing element 32 is stressed by an upward force, the supporting sealing ribs 323 are stopped at the lower end surface of the assembling hole 322, so that the upward force is transmitted to the supporting sealing ribs 323, the sealing supporting ribs 33 are pressed at the lower end of the assembling hole 322, water vapor or foam and the like are prevented from entering the assembling hole 322, and the sealing property between the sealing element 32 and the assembling hole 311 is improved; meanwhile, the upward extension of the mounting rod 3221 under the action of the deformation force of the sealing bag 321 is avoided, which affects the assembling firmness and sealing performance of the sealing element 32 and the mounting hole 311.

As for the structural arrangement of the supporting sealing rib 323, the supporting sealing rib 323 comprises an inner extension portion 331 extending inwards and an outer extension portion 3232 extending outwards, and by arranging the inner extension portion 3231 and the outer extension portion 3232, the lower end face of the assembly hole 311 is closed, and the sealing performance for the assembly hole 311 is ensured; a notch 312 matching with the inner extension portion 3231 is provided on the cover body 31 at the lower end face of the fitting hole 311, the inner extension portion 3231 is located in the notch 312, by providing the notch 312 for defining the mounting position of the inner extension portion 3231, so that after the sealing member 3 is mounted, the position of the fitting rod 3221 in the fitting hole 311 is defined, the position of the sealing member 3 in the inward and outward direction is defined, and the notch 312 gives a supporting force to the inner extension portion 3231, supporting the pressing deformation of the sealing bag 321.

The outer end of the outer extension portion 3232 is provided with a tilting portion 32321 which is bent upwards, and after the sealing element 3 is installed, the tilting portion 3321 is pressed on the cover body, so that the sealing property is improved; particularly, after the sealing cap 3 is fastened, the sealing capsule 321 is pressed and deformed to apply an upward force to the supporting sealing rib 323. The dimension in the inward-outward direction of the inner extension 331 is set smaller than the dimension in the inward-outward direction of the outer extension 332.

Referring to fig. 5, the mounting hole 311 has a hole body 3111 and a neck portion 3112 at the upper end of the hole body 3111, the width of the hole body 3111 is gradually reduced upwards, that is, the cross section of the hole body 3111 is trapezoidal, the neck portion 3112 matches the thickness of the mounting rod 3221, and the maximum dimension of the fixing head 3223 in the inside and outside direction matches the width of the hole body 3111, which facilitates the mounting portion 322 to be mounted in the mounting hole 311. The height of the necking portion 3112 is the same as the distance between the mounting head 3223 and the sealing fixing rib 3222 close to the mounting head 3223, that is, the upper end surface of the necking portion 3112 is adjacent to the mounting head 3223, and the lower end surface is adjacent to the sealing fixing rib 3222, which is beneficial to increasing the stability of the sealing member 3 after being mounted.

The dimension of the assembling rod 3221 in the inner and outer directions, namely the thickness of the assembling rod 3221, and the ratio of the thickness of the assembling rod 3221 to the wall thickness of the sealing bag 321 is 5-7; preferably, the ratio of the thickness of the mounting rod 3221 to the wall thickness of the capsule 321 is 6. The thickness of the supporting sealing ribs 3222 is greater than or equal to the wall thickness of the sealing bladder 321.

Referring to fig. 7-10, the dishwasher liner 2 includes a liner body 21 and a top frame 22 disposed at an open end of the liner body 21, the top frame 22 includes a top frame 221 disposed horizontally, an assembling portion 222 disposed at a lower side of the top frame 221, and a water retaining edge 223 extending upward along an outer side of the top frame 221, the assembling portion 222 is assembled with the liner body 21 of the liner 2, and a height of the water retaining edge 223 is greater than a thickness of the top frame 221, that is, a dimension of the top frame 221 in a vertical direction. By arranging the water retaining edge 223, when water drops exist on the upper surface of the top frame 22, the rib water drops are prevented from flowing outwards by the water retaining edge 223 arranged on the outer side, so that the water drops are prevented from flowing to the outer side of the inner container 2, and the safety is ensured; the height of the water retaining edge 223 is larger than the thickness of the top frame body 221, so that the arrangement of the height of the water retaining edge 223 is guaranteed, the water retaining effect of the water retaining edge 223 is guaranteed, and the problem that the water retaining edge 223 is too low in height and cannot achieve a good water flow retaining effect is avoided. The arc-shaped transition between the water retaining edge 223 and the upper end face of the top frame 221 is beneficial to the backflow of water drops on the upper end face of the top frame 221, and water accumulation at the connecting part between the water retaining edge 223 and the top frame 221 is avoided.

Referring to fig. 9, the top frame 22 further includes a lower extension portion 224 extending downward along the inner side of the top frame 221, and the lower extension portion 224 has an arc-shaped surface, so as to increase the smoothness of the inner side, improve the appearance, prevent the tableware from being damaged by touch when the tableware is taken and placed, and facilitate the water drops to flow. The lower extension portion 224 is in arc transition with the upper end surface of the top frame body 221, and the lower extension portion 224 is in arc transition with the lower end surface of the top frame body 221.

The top frame 22 further includes a decorative plate 225 extending downward along the outer side of the top frame 221, and the height of the decorative plate 225 is 2 to 4 times the thickness of the top frame 221, preferably 3 times the thickness of the decorative plate 225. Through setting up decorative board 225 for shelter from the assembly gap etc. of courage body 21 and top frame 22, be favorable to increasing the aesthetic property.

Referring to fig. 10, the mounting portion 222 is formed by two mounting plates 2221 extending downward along the lower side of the top frame 221 and having the same height in parallel, and a receiving groove 2222 formed between the two mounting plates 2221, and the upper end of the container body 21 is located in the receiving groove 2222. The height of the fitting plate 2221 is smaller than the height of the decorative plate 225, and the bladder body 21 is welded or bonded to the fitting portion 222.

Referring to fig. 10 to 14, a second embodiment of the sealing cover of the dishwasher according to the present invention is shown, and this embodiment is different from the first embodiment mainly in that a fixing head is not provided, and other structures may adopt the same structure as the first embodiment.

The dishwasher sealing cover 3 includes a cover body 31, and a sealing member 32 fitted and fixed to the cover body 31, the sealing member 32 having a circular sealing capsule 321, a fitting portion 322 extending upward along the sealing capsule 321, and a plurality of sealing lips 323 extending along the sealing capsule 322, the sealing member 32 being fitted to the cover body 31 through the fitting portion 322. By providing the sealing member 32 with the sealing capsule 321, the fitting portion 322, and the plurality of sealing lips 323, which are circular, the sealing property is increased, and the firmness after fitting is increased; the round sealing bag 321 is beneficial to increasing the structural strength and ensuring the sealing tightness of the sealing bag 321 after being compressed and deformed and the resetting capability of the sealing cover after being opened; the sealability with the inner tub is further increased by the provision of the sealing lip 323, and the washing water is prevented from permeating outwardly along the arc-shaped surface of the sealing bladder 321.

With respect to the arrangement of the fitting portion 322, the fitting portion 322 has a vertically arranged fitting rod 3221, and a plurality of barb-shaped seal-fixing ribs 3222 arranged to extend along inner and outer sidewalls of the fitting rod 3221. The cover 31 is provided with a fitting hole 311 corresponding to the fitting portion 322, and the fitting portion 322 is fixed to the fitting hole 315. The assembling hole 315 is a blind hole in the vertical direction, and the sealing and fixing rib 3222 is assembled in the assembling hole 311 in an interference manner; when the fitting portion 322 is fitted into the fitting hole 311 from below to above, the seal fixing rib 3222 is pressed and deformed in a direction approaching the fitting rod 3221, and the seal fixing rib 3222 is in close contact with the inner wall of the fitting hole 311; the sealing fixing rib 3222 is arranged to be barb-shaped, that is, the sealing fixing rib 3222 is arranged to be inclined downward, after the sealing element 32 is assembled and fixed, when the assembling portion 322 is subjected to downward force, the sealing fixing rib 3222 continues to be extruded and deformed, and due to the barb-shaped arrangement, the downward movement of the assembling rod 3221 is stopped by the sealing fixing rib 3222, so that the stability after the assembling portion 322 is installed in the assembling hole 311 is improved; meanwhile, the sealing fixing ribs 3222 are arranged, so that the assembly holes 311 are sealed by the sealing fixing ribs 3222, and the stability after assembly is improved; and set up pilot hole 315 for the blind hole of upper and lower direction, avoided steam and foam etc. in the inner bag to spill over from pilot hole 311, be favorable to increasing the leakproofness.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.