WO2020073522A1 - 压力烹饪设备 - Google Patents

压力烹饪设备 Download PDF

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Publication number
WO2020073522A1
WO2020073522A1 PCT/CN2018/124681 CN2018124681W WO2020073522A1 WO 2020073522 A1 WO2020073522 A1 WO 2020073522A1 CN 2018124681 W CN2018124681 W CN 2018124681W WO 2020073522 A1 WO2020073522 A1 WO 2020073522A1
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WO
WIPO (PCT)
Prior art keywords
cover
pressure cooking
elastic
lower opening
opening cover
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Application number
PCT/CN2018/124681
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English (en)
French (fr)
Inventor
徐中
刘利东
谭四同
肖升阳
闫柯峥
梁嘉强
廖永华
Original Assignee
佛山市顺德区美的电热电器制造有限公司
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Application filed by 佛山市顺德区美的电热电器制造有限公司 filed Critical 佛山市顺德区美的电热电器制造有限公司
Publication of WO2020073522A1 publication Critical patent/WO2020073522A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor

Definitions

  • the invention relates to the field of electrical appliances, in particular, to a pressure cooking device.
  • An object of the present invention is to provide a pressure cooking device to at least solve the problem that the pressure cooking device in the related art is prone to fail to open the cover.
  • an embodiment of the present invention provides a pressure cooking apparatus including an apparatus main body having an inner cavity and a cover body for closing the inner cavity, the cover body being provided with an upper opening cover plate, the apparatus main body
  • the upper cover is provided with a lower cover, the upper cover is provided to be engaged with the lower cover when the cover body closes the inner cavity, and the lower cover is provided with a cover opened from the lower
  • An elastic protrusion component protruding from the clamping friction surface of the board.
  • an accommodating portion is formed on the lower opening cover plate, and the elastic protrusion assembly is at least partially accommodated in the accommodating portion and has a protrusion protruding from the engaging friction surface of the lower opening cover plate Part, the protruding portion can be contracted into the accommodating portion, so that the upper opening cover plate and the lower opening cover plate are in contact with the engaging friction surface.
  • the device body is provided with a support portion on the upper side of the lower opening cover plate for supporting the cover body, and the accommodating portion is a through hole extending through the lower opening cover plate, so The elastic protrusion assembly is installed on the support portion and protrudes toward the upper opening cover through the through hole.
  • the elastic protrusion assembly includes a rolling element, an elastic element and a limiting element, the limiting element has an opening at the bottom of the through hole, wherein the rolling element and the elastic element are limited by the The element is limited to the bottom of the support portion, and the rolling element is elastically supported by the elastic element to protrude toward the upper opening cover through the opening.
  • a groove corresponding to the through hole is provided on a side of the supporting portion facing the lower opening cover plate, and the elastic element is disposed in the groove and abuts against the groove
  • the bottom wall of the groove, the limiting element covers the groove and is located in the through hole.
  • the limiting element has a circumferential flange that is clamped between the support portion and the lower opening cover.
  • the elastic element is a coil spring or an elastic sheet.
  • the elastic protrusion assembly includes a rolling element and a limiting element, the limiting element has openings and elastic portions respectively located at both ends of the accommodating portion, the rolling element abuts against the elastic portion and is The portion is elastically supported to protrude toward the upper opening cover through the opening.
  • the accommodating portion is formed as an edge groove penetrating the edge of the lower opening cover plate.
  • the rolling element has a spherical shape, a cylindrical shape, or a circular ring shape.
  • the elastic protrusion assembly is a single element with an inverted “ ⁇ ” -shaped cross-sectional profile and includes a mounting portion for mounting to the lower opening cover plate and a snap connection from the lower opening cover plate The arc-shaped protrusion of the friction surface.
  • the elastic protrusion component is a sheet bending member, or the arc-shaped protrusion is hemispherical.
  • FIG. 1 is a perspective view of a pressure-cooking device equipped with a supporting portion according to an embodiment of the present invention
  • FIG. 2 is a perspective view of a pressure cooking device without a supporting portion provided by an embodiment of the present invention
  • FIG. 3 is a schematic diagram of the positional relationship between the upper open cover plate and the lower open cover plate when the cover of the pressure cooking device according to an embodiment of the present invention is in a closed state;
  • FIG. 4 is a schematic diagram of the positional relationship between the upper open cover plate and the lower open cover plate when the cover of the pressure cooking device provided in an alternative embodiment of the present invention is in an open state;
  • FIG. 5 is a force diagram of the upper open cover plate and the lower open cover plate when the cover of the pressure cooking device provided in an alternative embodiment of the present invention is in a closed state;
  • FIG. 6 is a perspective view of a single element with an inverted “ ⁇ ” cross-sectional profile provided by an alternative embodiment of the present invention.
  • FIG. 7 is a perspective view of a single element with an inverted “ ⁇ ” cross-sectional profile provided by another alternative embodiment of the present invention.
  • FIG. 8 is an assembly schematic diagram of a supporting portion and a lower opening cover provided by an alternative embodiment of the present invention.
  • FIG. 9 is a bottom view of a supporting portion and a lower opening cover provided by an alternative embodiment of the present invention.
  • FIG. 10 is a bottom view of the lower opening cover provided by an alternative embodiment of the present invention.
  • FIG. 11 is a bottom view of a supporting portion provided by an alternative embodiment of the present invention.
  • FIG. 13 is a schematic diagram of an elastic protrusion assembly when the pressure cooking device provided in an alternative embodiment of the present invention is in a non-pressure state;
  • FIG. 14 is a schematic diagram of the elastic protrusion assembly when the pressure cooking device provided in an alternative embodiment of the present invention is in a starting state;
  • FIG. 15 is a perspective view of a lower opening cover provided by an alternative embodiment of the present invention.
  • FIG. 16 is a perspective view of a lower opening cover plate provided with an elastic protrusion assembly provided by an alternative embodiment of the present invention.
  • 17 is a bottom view of a lower opening cover plate provided with an elastic protrusion assembly provided by an alternative embodiment of the present invention.
  • FIG. 18 is a front view of a lower opening cover plate provided with an elastic protrusion assembly provided by an alternative embodiment of the present invention.
  • FIG. 19 is a top view of a lower opening cover plate provided with an elastic protrusion assembly according to an alternative embodiment of the present invention.
  • FIG. 20 is a right side view of a lower opening cover plate provided with an elastic protrusion assembly provided in an alternative embodiment of the present invention.
  • 21 is a perspective view of two limiting elements located on the left and right sides of the lower opening cover provided by an alternative embodiment of the present invention.
  • the directional words such as “up, down, top, and bottom” are generally used for the direction shown in the drawings or for vertical, vertical, or gravity directions, unless otherwise stated.
  • an embodiment of the present invention provides a pressure cooking device including a device body and a cover.
  • An upper cover 11 is provided on the inner cover 1 of the cover.
  • the housing cover 2 is provided with a lower opening cover plate 21, the main body of the device has an inner cavity 3, and the cover body is used to close the inner cavity 3.
  • the upper opening cover plate 11 is configured to be engaged with the lower opening cover plate 21 when the cover body closes the inner cavity 3, and the lower opening cover plate 21 is provided with an elastic protrusion component which is locked from the lower opening cover plate 21
  • the friction-contacting surface protrudes, and this clamping friction surface is the surface where the lower-opening cover 21 and the upper-opening cover 11 contact when the lower-opening cover 21 is engaged with the upper-opening cover 11.
  • the pressure cooking device may be, for example, a micro-pressure rice cooker, a pressure cooker, or other cooking devices capable of generating pressure in the inner cavity during operation, and the upper cover 21 and the lower cover 22 may be made of stainless steel.
  • the upper open cover plate 21 may be an open upper steel plate on the cover of the micro piezoelectric rice cooker
  • the lower open cover plate 22 may be an open lower cover on the device body of the micro piezoelectric rice cooker
  • the upper cover 21 can be the teeth on the lid of the pressure cooker
  • the lower cover 22 can be the teeth on the body of the pressure cooker.
  • an upper cover plate 11 is provided on the inner cover 1 of the pressure cooking device, and the upper cover plate 11 is located at the front end of the inner cover and is pivotally connected to the inner cover 1 through a rotating shaft 111
  • the outer cover 2 of the pressure cooking device is provided with a lower open cover 21 corresponding to the position of the upper open cover 11, and the lower open cover 21 can be fixed to the outer cover 2 by bolts, for example
  • the upper side of the cover opening plate 21 is provided with a supporting portion 23 for supporting the cover body.
  • a cover opening button assembly 22 On the top surface of the convex portion of the front end of the housing cover 2 is provided a cover opening button assembly 22, which includes an opening at its bottom ⁇ ⁇ 221.
  • the above-mentioned upper opening cover 11, lower opening cover 21 and support portion 23 may be made of stainless steel, for example, so as to ensure sufficient strength to meet the pressure-bearing needs of the pressure cooking device.
  • the snap 112 of the upper lid 11 is snapped into the slot 211 of the lower lid 22, and the pressure
  • the lid body receives upward force, which drives the snap-opening plate 11 of the upper cover 11 to squeeze the bottom surface of the groove 211 upward.
  • the bottom surface of the groove 211 is under pressure (ie F1 in FIG.
  • a friction force can be generated on the contact surface between the buckle 112 and the groove 211 (that is, f in FIG. 5).
  • the lid opening push rod 221 pushes the lever 113 of the upper lid opening plate 11, and the lever 113 overcomes the buckle 112 and the slot 211 after being pushed (ie F2 in FIG. 5)
  • the friction between them drives the upper cover 11 to pivot along the rotation axis 111, so that the buckle 112 and the groove 211 are separated from each other.
  • a protruding elastic protrusion component is provided on the bottom surface of the card slot 211 (that is, the engaging friction surface of the lower cover 21).
  • the buckle 112 presses the card slot 211 upward, it first contacts the card
  • the elastic protrusion components of the groove 211 are in contact, thereby reducing the contact area between the upper opening cover 11 and the lower opening cover 21, and thereby reducing the friction between the upper opening cover 11 and the lower opening cover 21, This makes it easier for users to open the cover.
  • a receiving portion may be formed on the lower opening cover 21, and the elastic protrusion assembly is at least partially accommodated in the receiving portion and has a clamping friction surface protrusion from the lower opening cover 21 The protruding portion can be retracted into the accommodating portion, so that the upper friction plate 11 and the lower friction plate 21 are in contact with the engaging friction surface.
  • the elastic protrusion component may be configured such that when the pressure in the inner cavity 3 of the pressure cooking device does not exceed the safety pressure threshold, the protruding portion of the elastic protrusion component protrudes from the lower opening cover plate 21 to reduce the upper opening
  • a support portion 23 for supporting the cover body on the upper side of the lower cover 21 is provided on the main body of the device, and the accommodating portion of the lower cover 21 may be through Through the through hole 212 of the lower opening cover 21, the elastic protrusion assembly is mounted on the support portion 23 and protrudes toward the upper opening cover 21 through the through hole 212.
  • the elastic protrusion assembly can overcome its own elastic force and contract into the through hole 212 of the lower cover 21, and when the buckle 112 When the pressure of squeezing the clamping groove 211 upward does not exceed the preset threshold, the elastic protrusion assembly will not shrink into the through hole 212 of the lower opening cover 21.
  • the buckle 112 when the pressure in the pressure cooking device is lower than the preset pressure, the buckle 112 will not squeeze the elastic protrusion component into the through hole 212, so that the contact area between the upper cover 11 and the lower cover 21 is more Smaller, and thus the friction between the upper cover 11 and the lower cover 21 is also smaller, so it is easier to open the cover, and it can also reduce the friction surface between the upper cover 11 and the lower cover 21 Wear; and when the pressure in the pressure cooking device is higher than the preset pressure, the upward pressure applied by the buckle 112 will squeeze the elastic protrusion component into the through hole 212, so that the buckle 112 directly contacts the bottom surface of the groove 211 , The contact area between the upper cover 11 and the lower cover 21 is greater, and the friction between the upper cover 11 and the lower cover 21 is also greater, so it is not easy to open the cover.
  • the friction coefficient of the contact surface between the buckle 112 and the groove 211, the elastic force of the elastic protrusion assembly, and the maximum thrust of the lid-opening push rod 221 can be adjusted so that when the pressure in the inner chamber 3 exceeds the safety pressure At a threshold (for example, 5KPa), the maximum thrust of the lid-opening push rod 221 cannot overcome the maximum static friction between the buckle 112 and the groove 211 to achieve the function of pressure protection.
  • a threshold for example, 5KPa
  • the elastic protrusion component may be, for example, a single element having an inverted “ ⁇ ” -shaped cross-sectional profile, the single element including The mounting portion 45 on the lower cover 21 and the arc-shaped protrusion 44 protruding from the engaging friction surface of the lower cover 21.
  • the mounting portion 45 can elastically deform, so that when the pressure of the buckle 112 pressing upwardly against the groove 211 exceeds a preset threshold, the arc-shaped protruding portion 44 can The buckle 112 shrinks into the accommodating cavity of the lower opening cover 21 under squeezing, and when the pressure of the buckle 112 pressing up the chute 211 does not exceed the preset threshold, the arc-shaped protrusion 44 passes from the through hole 212 The friction surface of the clip is protruding.
  • the single element may be a sheet bending member as shown in FIG. 6 or a single element including a hemispherical arc-shaped protrusion and a strip-shaped mounting portion as shown in FIG. 7.
  • the single element can be made of plastic or metal.
  • the elastic protrusion component may include, for example, a rolling element 41, an elastic element 42 and a limiting element 43, wherein the limiting element 43 has a through hole 212
  • the opening of the bottom, the rolling element 41 and the elastic element 42 are limited 43 by the limiting element at the bottom of the support portion 23, and the rolling element 41 is elastically supported by the elastic element 42 to protrude toward the upper cover 11 through the opening of the limiting element 43 .
  • protruding toward the upward opening cover 11 in the present invention refers to protruding toward the buckle 112 of the upward opening cover 11.
  • the rolling element 41 may be, for example, a steel ball
  • the elastic element 42 may be, for example, a shrapnel
  • the limiting element 43 may be, for example, an aluminum cap
  • the supporting portion 23 may be, for example, an inner pot support block, and the inner pot support block may open downward.
  • a groove 231 is formed on one side of the cover 21, the groove 231 corresponds to the position of the through hole 212 of the lower cover 21, the elastic piece is disposed in the groove 231, and one side of the elastic piece abuts against the groove 231
  • the bottom wall, the steel ball is located on the side of the shrapnel away from the bottom wall of the groove 231
  • the aluminum cap can cover the groove of the groove 231 and is located in the through hole 212
  • the aluminum cap and the groove can be fixed by an interference connection
  • the aluminum cap has an opening at the bottom of the through hole 212, the opening is located on the cap top 431 of the aluminum cap, and the aperture of the opening is smaller than the diameter of the steel ball, the steel ball can protrude from the opening portion of the cap top 431, so that the aluminum cap can
  • the shrapnel and the steel ball are defined in the groove 231 of the inner pot support block, so that the shrapnel, the steel ball, the aluminum cap and the inner pot support block form a whole.
  • first bolt holes 232 are provided on the inner pot support block, and a plurality of second bolt holes 213 corresponding to the positions of the plurality of first bolt holes 232 are provided on the lower cover 21 ,
  • the bolt can pass through the first bolt hole 232 and the second bolt hole 213 in order to fix the lower cover 21 and the inner pot support block to the outer shell cover 2, wherein the lower cover 21 is on the lower side, and the inner pot support block is Upper side.
  • the through hole 212 on the lower opening cover 21 corresponds to the position of the groove 231, and the aluminum cap is located in the through hole 212 of the lower opening cover 21.
  • the aluminum cap may have a circumferential flange 432, which may be clamped between the inner pot support block and the lower opening cover 21, so as to limit the aluminum cap in the up and down directions, It is ensured that the aluminum cap will not come out of the groove of the support block of the inner pot, and the stability of the structure is improved.
  • the pressure cooking device When in use, the pressure cooking device can be divided into a starting state and a non-pressing state according to the pressure in the inner cavity 3, wherein, for example, it can be defined as a starting state when the pressure in the inner cavity 3 exceeds 3KPa, in the inner cavity 3 When the pressure does not exceed 3KPa, it is in a state of no pressure.
  • a starting state when the pressure in the inner cavity 3 exceeds 3KPa, in the inner cavity 3
  • the pressure does not exceed 3KPa, it is in a state of no pressure.
  • the upper opening cover 11 is snapped onto the steel ball, and the steel ball is under the unpressed state under the support of the shrapnel It will not shrink in.
  • the upper cover 11 when the cover is engaged, the upper cover 11 only contacts the steel ball, and the two are rolling friction during relative movement, so their friction is very small, which makes it easier to open the cover. And the structure is stable and reliable.
  • the upper cover 11 when the pressure cooking device is in the pressed state, the upper cover 11 will compress the steel ball into the through hole 212 of the lower cover 21 under the pressure of the inner cavity 3, and the upper The cover opening plate 11 and the lower cover opening plate 21 are directly engaged, and the friction state between the two changes from rolling friction to sliding friction, so that it is not easy to open the cover.
  • the pressure in the inner chamber 3 can exceed the safe pressure threshold by adjusting the maximum lid opening pushing force of the lid opening push rod 221 of the lid opening button assembly 22 and the frictional force between the upper lid opening plate 11 and the lower lid opening plate 21 ( For example, 5KPa) cannot open the cover.
  • the maximum opening pushing force of the opening push rod 221 of the opening button assembly 22 may be limited, and the upper opening may be changed by performing surface treatment on the contact surface between the upper opening cover 11 and the lower opening cover 21
  • the safety pressure threshold for example, 5KPa
  • the maximum lid opening pushing force of the lid opening push rod 221 is not enough to overcome the maximum static friction force between the upper lid opening plate 11 and the lower lid opening plate 21, so that when the pressure in the inner chamber 3 exceeds the safe pressure threshold, the lid opening operation cannot be performed To achieve the purpose of pressure protection.
  • the friction state between the upper cover 11 and the lower cover 21 is changed from sliding friction to rolling friction.
  • the friction force is greatly reduced, so that the cover is opened more For convenience.
  • the elastic force of the shrapnel when the pressure cooking device is in a non-pressure state, rolling friction between the upper open cover 11 and the lower open cover 21 can be achieved, and the pressure cooking device can be in a starting state
  • the upper cover 11 and the lower cover 21 are sliding friction, and by adjusting the friction coefficient between the upper cover 11 and the lower cover 21 and the elastic force of the spring, the upper cover
  • the maximum static friction force between 11 and the lower cover-opening plate 21 is adapted to the maximum cover-opening thrust of the cover-opening push rod 221, so that when the pressure in the internal cavity 3 of the pressure cooking device exceeds the safe pressure threshold, the cover cannot be opened, So as to achieve the role of pressure protection.
  • the rolling element 41 described above is not limited to a spherical shape, but may also have a cylindrical shape or a circular ring shape or the like, and the elastic element 42 is not limited to an elastic piece, but may also be another elastic element such as a coil spring.
  • the material of any one of the rolling element 41, the elastic element 42, and the limiting element 43 may be a metal material such as stainless steel, aluminum, or a plastic material.
  • the rolling element 41 may also be a plastic ball or a stainless steel cylinder
  • the elastic element 42 may also be an alloy coil spring or a plastic shrapnel
  • the limiting element 43 may also be a plastic cap.
  • the accommodating portion is formed as an edge groove 214 penetrating the edge of the lower cover 21, and two clamping slots 211 in the lower cover 21
  • Each of the top surfaces is provided with an edge groove 214, and each edge groove 214 is provided with an elastic protrusion component.
  • the elastic protrusion assembly includes a rolling element 41 and a limiting element 43, wherein the rolling element 41 may be, for example, a steel ball, and the limiting element 43 may be, for example, a bent metal sheet.
  • the limiting element 43 can be clamped and fixed on the lower opening cover 21, and the limiting element 43 has openings 434 and elastic portions 435 located at both ends of the edge groove 214, respectively.
  • the width of the opening 434 is smaller than the diameter of the steel ball, so that the steel ball can be confined in the edge groove 214.
  • the steel ball abuts against the elastic portion 435 and is elastically supported by the elastic portion 435 to protrude toward the upper cover 11 through the opening 434.
  • the steel ball can overcome the elastic force of the elastic portion 435 and contract into the edge groove 214 of the lower cover 21, and when the buckle When the pressure of 112 upwardly pressing the clamping groove 211 does not exceed the preset threshold, the steel ball will not shrink into the edge groove 214 of the lower opening cover 21 under the restriction of the elastic portion 435.
  • the pressure cooking device is in a non-pressing state, rolling friction between the upper opening cover 11 and the lower opening cover 21 can be realized, and when the pressure cooking device is in a starting state, the upper opening cover 11 and the lower There is sliding friction between the cover opening plates 21 to achieve the purpose of pressure protection.
  • two second bolt holes 213 are provided on the lower opening cover 21, and a third bolt hole is correspondingly provided on each limiting element 43 433. In this way, by sequentially passing the bolts through the second bolt hole 213 and the third bolt hole 433, the limiting element 43 can be firmly installed on the lower opening cover 21.
  • the above-mentioned rolling element 41 is not limited to a spherical shape, but may also have other shapes such as a cylindrical shape or a circular ring shape.
  • the material of any one of the rolling element 41 and the limiting element 43 may be a metal material such as stainless steel or aluminum, or a plastic material.
  • the pressure cooking device in the above technical solution of the present invention can more conveniently perform the lid opening operation, avoiding the situation that it is difficult or impossible to open the lid. And the pressure cooking device also has the function of pressure protection, so it can fully protect the safety of the user.

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Abstract

一种压力烹饪设备，包括具有内腔（3）的设备主体和用于封闭内腔（3）的盖体，盖体设置有上开盖板（11），设备主体上设置有下开盖板（21），上开盖板（11）设置为在盖体封闭内腔（3）时与下开盖板（21）卡接，下开盖板（21）设置有从下开盖板（21）与上开盖板（11）相接触的卡接摩擦面凸出的弹性凸起组件。通过在下开盖板（21）上设置凸出于下开盖板（21）的卡接摩擦面的弹性凸起组件，能够减少下开盖板（21）与上开盖板（11）的接触面积，从而在压力烹饪设备开启盖体过程中，下开盖板（21）与上开盖板（11）之间的开盖摩擦力也相应减少，因此便于用户开启盖体，避免出现开盖困难或无法开盖的情况。

Description

压力烹饪设备
相关申请的交叉引用
本申请要求2018年10月8日提交的中国专利申请号为201821632594.8、发明名称为“压力烹饪设备”的权益，该申请的内容通过引用被合并于本文。
技术领域
本发明涉及电器领域，具体地，涉及一种压力烹饪设备。
背景技术
随着人们生活质量的提高，微压电饭煲、压力锅等压力烹饪设备逐渐走进人们的生活。在相关技术中，当微压电饭煲的盖体处于关闭状态时，可以通过内盖中的上开盖板和外壳罩上的下开盖板在微压电饭煲的开口处通过卡接来将盖体锁死。当上开盖板与下开盖板卡接时，如果上开盖板和下开盖板发生相对移动或具有相对移动的趋势时，上开盖板与下开盖板之间的摩擦面上会产生一个摩擦力，当用户进行开盖操作时，需要作用在上开盖板上的开盖推力能够克服上述的摩擦力，才能完成开盖。但在微压电饭煲使用过程中，上开盖板与下开盖板之间会不断摩擦，由于摩擦面的磨损，会使得上述摩擦力逐渐变大，因此容易造成开盖困难或无法开盖的情况发生。
发明内容
本发明的目的是提供一种压力烹饪设备，以至少解决相关技术中压力烹饪设备容易出现无法开盖情况的问题。
为了实现上述目的，本发明实施方式提供一种压力烹饪设备，包括具有内腔的设备主体和用于封闭所述内腔的盖体，所述盖体设置有上开盖板，所述设备主体上设置有下开盖板，所述上开盖板设置为在所述盖体封闭所述内腔时与所述下开盖板卡接，所述下开盖板设置有从该下开盖板的卡接摩擦面凸出的弹性凸起组件。
可选地，所述下开盖板上形成有容纳部，所述弹性凸起组件至少部分地容纳于该容纳部中并具有从所述下开盖板的卡接摩擦面凸出的凸出部分，该凸出部分能够收缩至所述容纳部中，以使得所述上开盖板与所述下开盖板的卡接摩擦面接触。
可选地，所述设备主体上设置有位于所述下开盖板上侧的用于支撑所述盖体的支 撑部，所述容纳部为贯穿所述下开盖板延伸的通孔，所述弹性凸起组件安装于所述支撑部并通过所述通孔朝向所述上开盖板凸出。
可选地，所述弹性凸起组件包括滚动元件、弹性元件和限位元件，该限位元件具有位于所述通孔底部的开口，其中所述滚动元件和所述弹性元件被所述限位元件限制在所述支撑部的底部，并且所述滚动元件由所述弹性元件弹性支撑为通过所述开口朝向所述上开盖板凸出。
可选地，所述支撑部朝向所述下开盖板的一侧设有与所述通孔相对应的凹槽，所述弹性元件设置于所述凹槽中并抵靠至所述凹槽的凹槽底壁，所述限位元件罩设所述凹槽并位于所述通孔中。
可选地，所述限位元件具有周向凸缘，该周向凸缘夹持于所述支撑部和所述下开盖板之间。
可选地，所述弹性元件为螺旋弹簧或弹片。
可选地，所述弹性凸起组件包括滚动元件和限位元件，该限位元件具有分别位于所述容纳部两端的开口和弹性部，所述滚动元件抵靠至该弹性部并被该弹性部弹性支撑为通过所述开口朝向所述上开盖板凸出。
可选地，所述容纳部形成为贯通所述下开盖板的边沿的边沿凹槽。
可选地，所述滚动元件的形状为球形、圆柱形或圆环形。
可选地，所述弹性凸起组件为具有倒“Ω”型截面轮廓的单体元件并包括用于安装至所述下开盖板上的安装部和从所述下开盖板的卡接摩擦面凸出的弧形凸出部。
可选地，所述弹性凸起组件为片材折弯件，或者，所述弧形凸出部呈半球状。
在上述技术方案中，通过在下开盖板上设置凸出于下开盖板的卡接摩擦面的弹性凸起组件，能够减少下开盖板与上开盖板的接触面积，从而在压力烹饪设备开启盖体过程中，下开盖板与上开盖板之间的开盖摩擦力也相应减少，因此便于用户开启盖体，避免出现开盖困难或无法开盖的情况。
附图说明
图1是本发明一种实施方式提供的安装有支撑部的压力烹饪设备的立体图；
图2是本发明一种实施方式提供的未安装支撑部的压力烹饪设备的立体图；
图3是本发明一种实施方式提供的压力烹饪设备的盖体处于关闭状态时上开盖板 与下开盖板的位置关系示意图；
图4是本发明一种可选实施方式提供的压力烹饪设备的盖体处于开启状态时上开盖板与下开盖板的位置关系示意图；
图5是本发明一种可选实施方式提供的压力烹饪设备的盖体处于关闭状态时上开盖板与下开盖板的受力图；
图6是本发明一种可选实施方式提供的具有倒“Ω”型截面轮廓的单体元件的立体图；
图7是本发明另一种可选实施方式提供的具有倒“Ω”型截面轮廓的单体元件的立体图；
图8是本发明一种可选实施方式提供的支撑部和下开盖板的装配示意图；
图9是本发明一种可选实施方式提供的支撑部和下开盖板的仰视图；
图10是本发明一种可选实施方式提供的下开盖板的仰视图；
图11是本发明一种可选实施方式提供的支撑部的仰视图；
图12是本发明一种可选实施方式提供的弹性凸起组件的装配示意图；
图13是本发明一种可选实施方式提供的压力烹饪设备处于不起压状态时，弹性凸起组件的示意图；
图14是本发明一种可选实施方式提供的压力烹饪设备处于起压状态时，弹性凸起组件的示意图；
图15是本发明一种可选实施方式提供的下开盖板的立体图；
图16是本发明一种可选实施方式提供的安装有弹性凸起组件的下开盖板的立体图；
图17是本发明一种可选实施方式提供的安装有弹性凸起组件的下开盖板的仰视图；
图18是本发明一种可选实施方式提供的安装有弹性凸起组件的下开盖板的主视图；
图19是本发明一种可选实施方式提供的安装有弹性凸起组件的下开盖板的俯视图；
图20是本发明一种可选实施方式提供的安装有弹性凸起组件的下开盖板的右视图；以及
图21是本发明一种可选实施方式提供的位于下开盖板左右两侧的两个限位元件的立体图。
附图标记说明
1      内盖          2    外壳罩
3      内腔          11   上开盖板
12     内盖桥架        21    下开盖板
22     开盖按钮组件    23    支撑部
41     滚动元件        42    弹性元件
43     限位元件        44    弧形凸出部
45     安装部          111   转轴
112    卡扣            113   拨杆
211    卡槽            212   通孔
213    第二螺栓孔      214   边沿凹槽
221    开盖推杆        231   凹槽
232    第一螺栓孔      431   帽顶
432    周向凸缘        433   第三螺栓孔
434    开口            435   弹性部
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
在本发明中，在未作相反说明的情况下，使用的方位词如“上、下、顶、底”通常是针对附图所示的方向而言的或者是针对竖直、垂直或重力方向上而言的各部件相互位置关系描述用词。
如图1至图21所示，本发明实施方式提供一种压力烹饪设备，该压力烹饪设备包括设备主体和盖体，在盖体的内盖1上设置有上开盖板11，设备主体的外壳罩2上设置有下开盖板21，设备主体具有内腔3，盖体用于封闭内腔3。上开盖板11设置为在盖体封闭内腔3时与下开盖板21卡接，下开盖板21设置有弹性凸起组件，该弹性凸起组件从该下开盖板21的卡接摩擦面凸出，该卡接摩擦面为下开盖板21与上开盖板11卡接时，下开盖板21与上开盖板11相接触的表面。
其中，压力烹饪设备例如可以是微压饭煲、压力锅或者其它在工作过程中内腔中能够产生压力的烹饪设备，上开盖板21与下开盖板22可以为不锈钢材质。并且，当压力烹饪设备为微压电饭煲时，上开盖板21可以为微压电饭煲的盖体上的开盖上钢板，下开盖板22可以为微压电饭煲的设备主体上的开盖下钢板；当压力烹饪设备为压力锅时，上开盖板21可以为压力锅的盖体上的盖牙，下开盖板22可以为压力锅的设备主体 上的锅牙。
如此，通过在下开盖板21上设置凸出于下开盖板21的卡接摩擦面的弹性凸起组件，能够减少下开盖板21与上开盖板11的接触面积，从而在压力烹饪设备开启盖体过程中，下开盖板21与上开盖板11之间的开盖摩擦力也相应减少，因此便于用户开启盖体，避免出现开盖困难或无法开盖的情况。
具体地，如图1和图2所示，压力烹饪设备的内盖1上设置有上开盖板11，该上开盖板11位于内盖的前端并通过转轴111枢转连接于内盖1的内盖桥架12上，压力烹饪设备的外壳罩2上设置有与上开盖板11位置相对应的下开盖板21，下开盖板21可以例如通过螺栓固定在外壳罩2上，在下开盖板21的上侧设置有用于支撑盖体的支撑部23，在外壳罩2的前端的凸起部分的顶面设置有开盖按钮组件22，开盖按钮组件22包括位于其底部的开盖推杆221。其中，上述的上开盖板11、下开盖板21和支撑部23可以例如为不锈钢材质，从而能够保证足够的强度来满足压力烹饪设备的承压需求。在使用时，如图3至5所示，当压力烹饪设备的盖体处于关闭状态时，上开盖板11的卡扣112卡接于下开盖板22的卡槽211中，并且在压力烹饪设备内部压力的作用下，盖体受到向上的作用力，从而带动上开盖板11的卡扣112向上挤压卡槽211的底面，卡槽211的底面在压力(即图5中F1)作用下，在卡扣112和卡槽211之间的接触面上能够产生一个阻止两者相对移动的摩擦力(即图5中f)。当用户向下按压开盖按钮组件22时，开盖推杆221推动上开盖板11的拨杆113，拨杆113受到推力(即图5中F2)后，克服卡扣112和卡槽211之间的摩擦力，带动上开盖板11沿转轴111枢转，使卡扣112与卡槽211彼此分离。在本实施方式中，在卡槽211的底面(即下开盖板21的卡接摩擦面)设置有凸出的弹性凸起组件，当卡扣112向上挤压卡槽211时，首先与卡槽211的弹性凸起组件相接触，从而降低了上开盖板11与下开盖板21之间的接触面积，进而降低了上开盖板11与下开盖板21之间的摩擦力，使得用户更容易将盖体打开。
在本发明一种可选实施方式中，下开盖板21上可以形成有容纳部，弹性凸起组件至少部分地容纳于该容纳部中并具有从下开盖板21的卡接摩擦面凸出的凸出部分，该凸出部分能够收缩至容纳部中，以使得上开盖板11与下开盖板21的卡接摩擦面接触。
其中，该弹性凸起组件可以被配置为在压力烹饪设备的内腔3中的压力未超过安全压力阈值时，弹性凸起组件的凸出部分从下开盖板21凸出，以降低上开盖板11与下开盖板21的的摩擦力，而在压力烹饪设备的内腔3中的压力超过安全压力阈值时，弹性凸起组件的凸出部分在卡扣112的挤压下收缩至容纳部中，从而使得卡扣112与卡槽 211直接接触，以增大上开盖板11与下开盖板21之间的接触面积，进而增大上开盖板11与下开盖板21之间的摩擦力。如此，能够实现压力保护的作用。
具体地，在本发明一种可选实施方式中，在设备主体上设置有位于下开盖板21上侧的用于支撑盖体的支撑部23，下开盖板21的容纳部可以为贯穿下开盖板21的通孔212，该弹性凸起组件安装于支撑部23并通过通孔212朝向所述上开盖板21凸出。
使用时，当卡扣112向上挤压卡槽211的压力超过预设阈值时，弹性凸起组件能够克服自身的弹性力而收缩到下开盖板21的通孔212中，而当卡扣112向上挤压卡槽211的压力未超过预设阈值时，弹性凸起组件不会收缩到下开盖板21的通孔212中。从而在压力烹饪设备内的压力低于预设压力时，卡扣112不会将弹性凸起组件挤入通孔212中，使得上开盖板11与下开盖板21之间的接触面积更小，进而上开盖板11与下开盖板21之间的摩擦力也更小，因此更易于将盖体打开，而且还能降低上开盖板11与下开盖板21之间摩擦面的磨损；而在压力烹饪设备内的压力高于预设压力时，卡扣112向上施加的压力会将弹性凸起组件挤入通孔212中，从而使得卡扣112与卡槽211的底面直接接触，使得上开盖板11与下开盖板21之间的接触面积更大，进而上开盖板11与下开盖板21之间的摩擦力也更大，因此不易于将盖体打开。并且，可以对卡扣112与卡槽211之间的接触面的摩擦系数、弹性凸起组件的弹性力以及开盖推杆221的最大推力进行调节，使得当内腔3中的压力超过安全压力阈值(例如5KPa)时，开盖推杆221的最大推力无法克服卡扣112与卡槽211之间的最大静摩擦力，以实现压力保护的功能。
在本发明一种可选实施方式中，如图6和图7所示，该弹性凸起组件例如可以为具有倒“Ω”型截面轮廓的单体元件，该单体元件包括用于安装至下开盖板21上的安装部45和从下开盖板21的卡接摩擦面凸出的弧形凸出部44。优选地，当弧形凸出部44受到压力时，安装部45能够发生弹性形变，从而当卡扣112向上挤压卡槽211的压力超过预设阈值时，弧形凸出部44能够在卡扣112的挤压下收缩到下开盖板21的容纳腔中，而当卡扣112向上挤压卡槽211的压力未超过预设阈值时，该弧形凸出部44经由通孔212从卡接摩擦面凸出。其中该单体元件既可以为如图6所示的片材弯折件，也可以如图7所示，为包括半球状的弧形凸出部和条形的安装部的单体元件。其中该单体元件可以为塑料材质或金属材质。
在本发明另一种可选实施方式中，如图8至12所示，弹性凸起组件例如可以包括滚动元件41、弹性元件42和限位元件43，其中限位元件43具有位于通孔212底部的开口，滚动元件41和弹性元件42被限位元件限制43在支撑部23的底部，并且滚动元 件41由弹性元件42弹性支撑为通过限位元件43的开口朝向上开盖板11凸出。需要说明的是，本发明所述的朝向上开盖板11凸出是指朝向上开盖板11的卡扣112凸出。
具体地，滚动元件41可以例如为钢球，弹性元件42可以例如为弹片，限位元件43可以例如为铝帽，支撑部23例如为内锅支撑块，在该内锅支撑块上朝向下开盖板21的一侧开有凹槽231，该凹槽231与下开盖板21的通孔212的位置相对应，弹片设置在凹槽231中，弹片的一侧抵靠至凹槽231的底壁，钢球位于弹片远离凹槽231底壁的一侧，铝帽能够罩设凹槽231的槽口并位于通孔212中，该铝帽与槽口之间可以通过过盈连接来固定，铝帽具有位于通孔212底部的开口，该开口位于铝帽的帽顶431上，并且该开口的孔径小于钢球直径，钢球能够从帽顶431的开口部分凸出，如此铝帽能够将弹片和钢球限定在内锅支撑块的凹槽231中，使得弹片、钢球、铝帽与内锅支撑块形成一个整体。其中，凹槽231可以为两个并且对称设置在支撑部23的两侧，在每个凹槽231中均安装有弹性凸起组件。
组装时，在内锅支撑块上设有多个对称设置的第一螺栓孔232，在下开盖板21上设有分别与多个第一螺栓孔232位置相对应的多个第二螺栓孔213，螺栓能够依次穿过第一螺栓孔232和第二螺栓孔213以将下开盖板21和内锅支撑块固定到外壳罩2上，其中下开盖板21在下侧，内锅支撑块在上侧。在下开盖板21上的通孔212与凹槽231的位置相对应，铝帽位于下开盖板21的通孔212内。可选地，铝帽可以具有周向凸缘432，该周向凸缘432可以夹持于内锅支撑块和下开盖板21之间，从而对铝帽在上下方向上均进行限位，保证了铝帽不会从内锅支撑块的凹槽上脱出，提高了结构的稳定性。
在使用时，压力烹饪设备可以根据内腔3中的压力分为起压状态和不起压状态，其中可以例如定义在内腔3中的压力超过3KPa时为起压状态，在内腔3中的压力不超过3KPa时为不起压状态。如图13所示，基于对弹片的弹性力的合理选择，在压力烹饪设备为不起压时，上开盖板11扣合到钢球上，钢球在弹片的支撑下在不起压状态时不会收缩进去，因此在盖体扣合时，上开盖板11只与钢球接触，两者在相对移动时为滚动摩擦，因而其摩擦力很小，进而更易于进行开盖操作，并且结构稳定可靠。如图14所示，压力烹饪设备为起压状态时，上开盖板11在内腔3中的压力作用下，会将钢球压缩到下开盖板21的通孔212内，此时上开盖板11与下开盖板21直接扣合，两者之间的摩擦状态由滚动摩擦变为滑动摩擦，从而不易于将盖体打开。此外，可以通过调节开盖按钮组件22的开盖推杆221的最大开盖推力和上开盖板11与下开盖板21之间的摩擦力来实现内腔3中压力超过安全压力阈值(例如5KPa)无法开盖。具体地，可以 对开盖按钮组件22的开盖推杆221的最大开盖推力进行限定，并通过对上开盖板11与下开盖板21之间的接触面进行表面处理来改变上开盖板11与下开盖板21之间的摩擦系数，进而使得内腔3中压力超过安全压力阈值(例如5KPa)时，在上开盖板11对下开盖板21的挤压作用下，开盖推杆221的最大开盖推力也不足以克服上开盖板11与下开盖板21之间的最大静摩擦力，从而实现内腔3中压力超过安全压力阈值时，无法进行开盖操作，以达到压力保护的目的。
如此，本实施方式通过设置钢球将上开盖板11与下开盖板21之间的摩擦状态由滑动摩擦转变为滚动摩擦，通过改变摩擦形式，进而极大地减少摩擦力，使得开盖更为方便。并且，通过对弹片的弹性力的合理选择，可以实现在压力烹饪设备为不起压状态时，上开盖板11与下开盖板21之间为滚动摩擦，在压力烹饪设备为起压状态时，上开盖板11与下开盖板21之间为滑动摩擦，并且可以通过调节上开盖板11与下开盖板21之间的摩擦系数和弹片的弹性力，使得上开盖板11与下开盖板21之间的最大静摩擦力与开盖推杆221的最大开盖推力相适应，以实现在压力烹饪设备的内腔3中的压力超过安全压力阈值时，无法开盖，从而达到压力保护的作用。
需要说明的是，上述的滚动元件41不限于球形，还可以为圆柱形或圆环形等其他形状，弹性元件42不限于弹片，还可以为螺旋弹簧等其他弹性元件。滚动元件41、弹性元件42和限位元件43中任意一者的材质可以为不锈钢、铝等金属材质，也可以为塑料材质。例如，滚动元件41还可以为塑料球或不锈钢圆柱体、弹性元件42还可以为合金螺旋弹簧或塑料弹片，限位元件43还可以为塑料帽。
在本发明另一种可选实施方式中，如图15至图21所示，容纳部形成为贯通下开盖板21的边沿的边沿凹槽214，在下开盖板21的两个卡槽211的顶面各设有一个边沿凹槽214，对应于每个边沿凹槽214设置有一个弹性凸起组件。弹性凸起组件包括滚动元件41和限位元件43，其中滚动元件41可以例如是钢球，限位元件43可以例如是弯折的金属片。该限位元件43能够卡接固定在下开盖板21上，并且限位元件43具有分别位于边沿凹槽214两端的开口434和弹性部435。开口434的宽度小于钢球的直径，从而钢球能够被限制在边沿凹槽214中。钢球抵靠至该弹性部435并被该弹性部435弹性支撑为通过开口434朝向上开盖板11凸出。
使用时，当卡扣112向上挤压卡槽211的压力超过预设阈值时，钢球能够克服弹性部435的弹性力而收缩到下开盖板21的边沿凹槽214中，而当卡扣112向上挤压卡槽211的压力未超过预设阈值时，钢球在弹性部435的限制作用下不会收缩到下开盖板21 的边沿凹槽214中。由此，可以实现在压力烹饪设备为不起压状态时，上开盖板11与下开盖板21之间为滚动摩擦，在压力烹饪设备为起压状态时，上开盖板11与下开盖板21之间为滑动摩擦，从而达到压力保护的目的。
此外，为了使得限位元件43与下开盖板21稳固连接，在下开盖板上21上设有两个第二螺栓孔213，在每个限位元件43上对应设有一个第三螺栓孔433。如此，通过螺栓依次穿过第二螺栓孔213和第三螺栓孔433，能够将限位元件43稳固安装在下开盖板21上。
需要说明的是，上述的滚动元件41不限于球形，还可以为圆柱形或圆环形等其他形状。滚动元件41和限位元件43中任意一者的材质可以为不锈钢、铝等金属材质，也可以为塑料材质。
本发明上述技术方案中的压力烹饪设备能够更方便地进行开盖操作，避免出现开盖困难或无法开盖的情况。并且该压力烹饪设备还具有压力保护的功能，因此能够充分保护使用者的安全。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合。为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。

Claims (12)

  1. 一种压力烹饪设备，其特征在于，包括具有内腔的设备主体和用于封闭所述内腔的盖体，所述盖体设置有上开盖板(11)，所述设备主体上设置有下开盖板(21)，所述上开盖板(11)设置为在所述盖体封闭所述内腔(3)时与所述下开盖板(21)卡接，所述下开盖板(21)设置有从该下开盖板(21)的卡接摩擦面凸出的弹性凸起组件。
  2. 根据权利要求1所述的压力烹饪设备，其特征在于，所述下开盖板(21)上形成有容纳部，所述弹性凸起组件至少部分地容纳于该容纳部中并具有从所述下开盖板(21)的卡接摩擦面凸出的凸出部分，该凸出部分能够收缩至所述容纳部中，以使得所述上开盖板(11)与所述下开盖板(21)的卡接摩擦面接触。
  3. 根据权利要求2所述的压力烹饪设备，其特征在于，所述设备主体上设置有位于所述下开盖板(21)上侧的用于支撑所述盖体的支撑部(23)，所述容纳部为贯穿所述下开盖板(21)延伸的通孔(212)，所述弹性凸起组件安装于所述支撑部(23)并通过所述通孔(212)朝向所述上开盖板(11)凸出。
  4. 根据权利要求3所述的压力烹饪设备，其特征在于，所述弹性凸起组件包括滚动元件(41)、弹性元件(42)和限位元件(43)，该限位元件(43)具有位于所述通孔(212)底部的开口，其中所述滚动元件(41)和所述弹性元件(42)被所述限位元件(43)限制在所述支撑部(23)的底部，并且所述滚动元件(41)由所述弹性元件(42)弹性支撑为通过所述开口朝向所述上开盖板(21)凸出。
  5. 根据权利要求4所述的压力烹饪设备，其特征在于，所述支撑部(23)朝向所述下开盖板(21)的一侧设有与所述通孔(212)相对应的凹槽(231)，所述弹性元件(42)设置于所述凹槽(231)中并抵靠至所述凹槽(231)的凹槽底壁，所述限位元件(43)罩设所述凹槽(231)并位于所述通孔(212)中。
  6. 根据权利要求5所述的压力烹饪设备，其特征在于，所述限位元件(43)具有周向凸缘(432)，该周向凸缘(432)夹持于所述支撑部(23)和所述下开盖板(21)之间。
  7. 根据权利要求4所述的压力烹饪设备，其特征在于，所述弹性元件(42)为螺旋弹簧或弹片。
  8. 根据权利要求2所述的压力烹饪设备，其特征在于，所述弹性凸起组件包括滚动元件(41)和限位元件(43)，该限位元件(43)具有分别位于所述容纳部两端的开口和弹性部，所述滚动元件(41)抵靠至该弹性部并被该弹性部弹性支撑为通过所述开口朝向所述上开盖板(11)凸出。
  9. 根据权利要求8所述的压力烹饪设备，其特征在于，所述容纳部形成为贯通所述下开盖板(21)的边沿的边沿凹槽。
  10. 根据权利要求4或8所述的压力烹饪设备，其特征在于，所述滚动元件(41)的形状为球形、圆柱形或圆环形。
  11. 根据权利要求2所述的压力烹饪设备，其特征在于，所述弹性凸起组件为具有倒“Ω”型截面轮廓的单体元件并包括用于安装至所述下开盖板(21)上的安装部(45)和从所述下开盖板(21)的卡接摩擦面凸出的弧形凸出部(44)。
  12. 根据权利要求11所述的压力烹饪设备，其特征在于，所述弹性凸起组件为片材折弯件，或者，所述弧形凸出部呈半球状。
PCT/CN2018/124681 2018-10-08 2018-12-28 压力烹饪设备 WO2020073522A1 (zh)

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