WO2020098009A1 - 一种自动启停抽真空的真空储物箱 - Google Patents

一种自动启停抽真空的真空储物箱 Download PDF

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WO2020098009A1
WO2020098009A1 PCT/CN2018/118973 CN2018118973W WO2020098009A1 WO 2020098009 A1 WO2020098009 A1 WO 2020098009A1 CN 2018118973 W CN2018118973 W CN 2018118973W WO 2020098009 A1 WO2020098009 A1 WO 2020098009A1
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vacuum
vacuuming
storage box
hole
elastic deformation
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PCT/CN2018/118973
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English (en)
French (fr)
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谢水旺
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中山佳威路家用电器有限公司
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Priority claimed from CN201811361375.5A external-priority patent/CN109132223A/zh
Priority claimed from CN201821882419.4U external-priority patent/CN209064730U/zh
Application filed by 中山佳威路家用电器有限公司 filed Critical 中山佳威路家用电器有限公司
Publication of WO2020098009A1 publication Critical patent/WO2020098009A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas

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  • the invention belongs to the technical field of vacuum storage equipment, and particularly relates to a vacuum storage box that automatically starts and stops vacuuming.
  • the existing vacuum storage boxes on the market include inner tanks and vacuum pumping devices, but these existing vacuum storage boxes use complex circuit control systems and pressure sensing systems for vacuum control, and the structure is very complicated. The production and processing are more difficult, the cost is high, and the corresponding electrical energy needs to be consumed, which is not energy-saving and environmentally friendly.
  • the present invention provides a vacuum storage box that can realize automatic vacuum control by using the elastic deformation of the elastic controller, which is energy-saving and environmentally friendly, has a simplified structure, and is difficult to produce and process and has low cost.
  • the present invention adopts the following technical solutions:
  • a vacuum storage box that automatically starts and stops vacuuming is provided with a liner and a vacuuming device in the box; an elastic controller is also provided in the box, and the outer side of the elastic deformation portion of the elastic controller is The vacuum switch is connected to the control circuit of the vacuum device, and the vacuum switch is triggered to turn on under normal conditions to start vacuuming; the inside of the elastic deformation part communicates with the interior of the liner, and the vacuum degree of the liner reaches the set value When the elastic deformation part is deformed in the direction of the liner, the vacuum pump is turned off, and the vacuum is stopped.
  • the elastic controller is installed on the edge of the box door of the box, and when the box door is closed, the elastic deformation part in the normal state triggers the vacuum switch to turn on, and the inner side communicates with the inside of the liner.
  • the elastic controller includes an elastic deformation part and a fixing seat; wherein the fixing seat is installed on the edge of the box door and is provided with a through hole communicating with the interior of the liner; the elastic deformation part is provided on the through The outer end orifice of the hole seals the outer end orifice.
  • a deformation limiting plate is further provided in the through hole, and the deformation limiting plate is spaced apart from the elastic deformation portion to form a limiting cavity, and the deformation limiting plate is further provided with an air hole communicating with the limiting cavity and the liner.
  • the through hole, the deformation limiting plate and the air hole are integrally formed with the fixing base.
  • a hard touch part is provided on the elastic deformation part, and the hard touch part is in tactile connection with the vacuum pump.
  • an integrally formed card holder is provided on the outer side of the elastic deformation part, and the hard touch part is installed on the card holder.
  • the elastic deformation portion is an elastic rubber sheet, and its peripheral edge is airtightly connected to the circumferential inner wall of the through hole.
  • a manual intake valve is provided on the box, the manual intake valve includes a valve body, a manual deflation rod and a return spring; wherein, the valve body is provided with a cavity and a An air inlet hole and a second air inlet hole, and the first air inlet hole communicates with the liner through the trachea; the manual deflation lever can be pulled out and installed in the cavity, one end of which extends out of the cavity and the other end A sealing head for controlling the connection and disconnection of the first air inlet hole and the second air inlet hole is provided, and the return spring is sleeved on the manual air release lever.
  • the box body is provided with an electric intake valve, which is in conductive connection with the vacuum pumping device.
  • the elastic controller is installed on the box door of the box, and the opening and closing of the vacuum device is controlled by opening and closing the box door, which is more convenient and easier to use.
  • FIG. 1 is a schematic structural view of an embodiment of a vacuum storage box with automatic start and stop vacuuming according to the present invention
  • FIG. 2 is an enlarged schematic view of the structure in FIG. 1 where the elastic controller controls the vacuum pump to turn on;
  • FIG. 3 is a schematic structural view of an elastic controller controlling the opening of a vacuum switch in an embodiment of an automatic vacuum storage box according to the present invention
  • FIG. 4 is an enlarged schematic structural view of the manual intake valve in part B of FIG. 1;
  • FIG. 5 is a schematic structural view of an elastic controller controlling another vacuum pump to be turned on in an embodiment of a vacuum storage box with automatic start and stop vacuum according to the present invention
  • FIG. 6 is a schematic structural view of an elastic controller for controlling the opening of another vacuum pump in an embodiment of a vacuum storage box with automatic start and stop vacuum according to the present invention.
  • a vacuum storage box that automatically starts and stops vacuuming is provided with a liner 2 and a vacuuming device 3 in the box body 1; an elastic controller 4 is also provided in the box body 1, The outer side of the elastic deformation portion 41 of the elastic controller 4 is connected to the vacuum switch 31 on the control circuit of the vacuum device 3, and in the normal state, the vacuum switch 31 is triggered to turn on to start vacuuming; the elastic deformation portion 41 The inner side of the inside communicates with the inside of the liner 2, and when the vacuum degree of the liner 2 reaches the set value, the elastic deformation portion 41 deforms toward the liner 2 and the vacuum switch 31 is turned off to stop the vacuum.
  • the specific structure may be: the elastic controller 4 is installed on the edge of the cabinet door of the cabinet 1, when the cabinet door is closed, the elastic deformation part 41 in the normal state triggers the vacuum switch 31 to turn on, and the inside and the inside The interior of gallbladder 2 is connected.
  • the vacuum switch 31 may be a micro switch;
  • the elastic controller 4 includes an elastic deformation portion 41 and a fixed seat 42;
  • the fixed seat 42 is installed on the edge of the box door 5 and is provided with a communication inner
  • the elastic deformation portion 41 may be an elastic rubber sheet, and is provided in the outer end opening of the through hole 43, and its peripheral edge is airtightly connected to the circumferential inner wall of the through hole 43, The outer end orifice is sealed;
  • the elastic deformation part 41 is provided with a hard touch part 47, as shown in FIGS. 2 and 3, the outer side of the elastic deformation part 41 is provided with an integrally formed holder 48, the hard The quality touch part 47 is installed on the card holder 48, and the hard touch part 47 is in touch connection with the vacuum pump 31.
  • the elastic deformation portion 41 triggers the vacuuming switch 31 to turn on, the vacuuming device 3 is started, and the inner liner 2 of the box 1 is pumped. Vacuum; when the vacuum degree of the liner 2 reaches the set value, the elastic deformation portion 41 deforms toward the liner 2 under the action of atmospheric pressure, the vacuum switch 31 is turned off (as shown in FIGS.
  • the vacuum storage box for automatically starting and stopping the vacuum of the present invention can realize the automatic vacuum control by using the elastic deformation of the elastic controller 4 (elastic deformation part 41), replacing the traditional complicated circuit control system and pressure sensing system, Energy saving and environmental protection, the structure is greatly simplified, the production and processing difficulty and cost are significantly reduced, which is beneficial to mass production and popularization; and the elastic controller 4 is installed on the cabinet door of the cabinet 1, the user can open and close the cabinet door Control the start and stop of the vacuum device, the operation is more convenient and easier.
  • the elastic controller 4 is installed on the cabinet door of the cabinet 1, the user can open and close the cabinet door Control the start and stop of the vacuum device, the operation is more convenient and easier.
  • the through-hole 43 is further provided with a deformation limiting plate 44 which is spaced apart from the elastic deformation portion 41 to form a limiting cavity 45, and the deformation limiting plate 44 is further provided with a communication limiting cavity 45 and
  • the air hole 46 of the liner 2, the through hole 43, the deformation limiting plate 44 and the air hole 46 are integrally formed with the fixing base 42. In this way, the amount of deformation of the elastic deformation portion 41 can be limited to ensure the recovery performance of the elastic deformation portion 41, and the automatic vacuum control is more stable and reliable.
  • the box body 1 is provided with a manual intake valve 5, the manual intake valve 5 includes a valve body 51, a manual deflation rod 52 and a return spring 53; wherein, the valve body 51 is provided with a cavity 54 1.
  • the manual deflation lever 52 can be pulled out and installed on the Inside the cavity 54, one end of the cavity extends out of the cavity 54, and the other end is provided with a sealing head 58 for controlling the connection and disconnection of the first air inlet hole 55 and the second air inlet hole 56, and the return spring 53 is sleeved on the manual
  • the valve body 51 is provided with a cavity 54 with an open lower end.
  • the top of the upper end of the cavity 54 and the peripheral side of the upper end are respectively provided with first air inlet holes 55.
  • the valve The lower end opening of the body 51 is provided with an end cover 59; the manual deflation rod 52 is installed in the cavity 54 and one end extends out of the cavity 54 from the end cover 59 and the other end is provided for blocking the first intake air
  • the sealing head 58 of the hole 55 is designed into a bullet shape matching the upper end of the cavity 54 and is provided with a sealing ring 50; the two ends of the return spring 53 are respectively pressed against the sealing head 58 and the end cover 59 .
  • the user When the liner 2 is in a vacuum state, before opening the door, the user needs to manually operate the manual inlet valve 5 to allow outside air to enter the liner 2 (manually pull the manual deflation lever 52 outward to make the seal head 58 and the first The intake hole 55 is separated, and at this time, the return spring 53 is compressed and deformed) until the internal and external pressures of the liner 2 are balanced.
  • box 1 may also be provided with an electric intake valve instead of the manual intake valve 5, and the electric intake valve is in conductive connection with the vacuum pump 3.

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Abstract

一种自动启停抽真空的真空储物箱，其箱体内设有内胆（2）和抽真空装置（3）；所述箱体内还设有弹性控制器（4），所述弹性控制器（4）的弹性变形部（41）外侧与抽真空装置（3）的控制电路上的抽真空开关（31）连接，且在常态下触动抽真空开关（31）接通、启动抽真空；所述弹性变形部（41）内侧与内胆（2）的内部连通，且在内胆（2）真空度达到设定值时弹性变形部（41）朝内胆方向变形、抽真空开关断开，停止抽真空。该真空储物箱利用弹性控制器的弹性变形部的弹性变形量实现自动抽真空控制，替代了传统复杂的电路控制系统和压力感应系统，节能环保，同时简化了结构，降低了生产加工难度和成本。

Description

一种自动启停抽真空的真空储物箱 技术领域
本发明属于真空储物设备技术领域，特别涉及一种自动启停抽真空的真空储物箱。
背景技术
目前，市场上现有的真空储物箱包括有内胆和抽真空装置，但这些现有的真空储物箱都是采用复杂的电路控制系统和压力感应系统进行抽真空控制，结构十分复杂，生产加工难度较大，成本高，而且需要耗费相应电能，不节能、不环保。
发明内容
为解决现有技术中存在的上述问题，本发明提供了一种可利用弹性控制器的弹性变形量实现自动抽真空控制，节能环保，结构简化，生产加工难度和成本低的真空储物箱。
为解决上述技术问题，本发明采用如下技术方案：
一种自动启停抽真空的真空储物箱，其箱体内设有内胆和抽真空装置；所述箱体内还设有弹性控制器，所述弹性控制器的弹性变形部的外侧与抽真空装置的控制电路上抽真空开关连接，且在常态下触动抽真空开关接通、启动抽真空；所述弹性变形部的内侧与内胆的内部连通，且在内胆真空度达到设定值时弹性变形部朝内胆方向变形、抽真空开关断开，停止抽真空。
进一步地，所述弹性控制器安装在箱体的箱门缘边上，在关闭箱门时，常态下的所述弹性变形部触动抽真空开关接通，且内侧与内胆的内部连通。
进一步地，所述弹性控制器包括弹性变形部和固定座；其中，所述固定座安装在箱门的缘边上，并设有连通内胆内部的通孔；所述弹性变形部设于通孔的外端孔口内、密封住该外端孔口。
进一步地，所述通孔内还设有变形限定板，所述变形限定板与弹性变形部间隔设置、形成限定腔，所述变形限定板上还设有连通限定腔和内胆的气孔。
进一步地，所述通孔、变形限定板和气孔与固定座一体成型。
进一步地，所述弹性变形部上设有硬质触控部，所述硬质触控部与抽真空开关触动连接。
进一步地，所述弹性变形部的外侧设有一体成型的卡座，所述硬质触控部安装在卡座上。
进一步地，所述弹性变形部是弹性橡胶片，其周侧缘边与所述通孔的周向内壁气密连接。
进一步地，所述箱体上设有手动进气阀，所述手动进气阀包括阀体、手动放气拉杆和复位弹簧；其中，所述阀体设有腔体、与腔体连通的第一进气孔和第二进气孔，且所述第一进气孔通过气管与内胆连通；所述手动放气拉杆可往外拉动地安装在腔体内，其一端伸出腔体外，另一端设有用于控制第一进气孔和第二进气孔连通和断开的密封头，而且复位弹簧套在手动放气拉杆上。
进一步地，所述箱体上设有电动进气阀，其与抽真空装置导通连接。
本发明通过上述技术方案，主要具有以下有益效果：
1、即可利用弹性控制器(弹性变形部)的弹性变形量实现自动抽真空控制，替代了传统复杂的电路控制系统和压力感应系统，节能环保，同时结构明显大大简化，生产加工难度和成本明显降低，有利于大批量生产，普及应用；
2、弹性控制器安装在箱体的箱门上，通过开关箱门来控制抽真空装置的开启和停止，使用操作更方便、更容易。
附图说明
图1是本发明所述一种自动启停抽真空的真空储物箱实施例的结构示 意图；
图2是图1的A部中弹性控制器控制抽真空开关接通的放大结构示意图；
图3是本发明所述一种自动启停抽真空的真空储物箱实施例中弹性控制器控制抽真空开关断开的结构示意图；
图4是图1的B部中手动进气阀的放大结构示意图；
图5是本发明所述一种自动启停抽真空的真空储物箱实施例中弹性控制器控制另一种抽真空开关接通的结构示意图；
图6是本发明所述一种自动启停抽真空的真空储物箱实施例中弹性控制器控制另一种抽真空开关断开的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
如图1至图6中所示：
本发明实施例所述的一种自动启停抽真空的真空储物箱，其箱体1内设有内胆2和抽真空装置3；所述箱体1内还设有弹性控制器4，所述弹性控制器4的弹性变形部41的外侧与抽真空装置3的控制电路上抽真空开关31连接，且在常态下触动抽真空开关31接通、启动抽真空；所述弹性变形部41的内侧与内胆2的内部连通，且在内胆2真空度达到设定值时弹性变形部41朝内胆2方向变形、抽真空开关31断开，停止抽真空。
具体结构可以为：所述弹性控制器4安装在箱体1的箱门缘边上，在关闭箱门时，常态下的所述弹性变形部41触动抽真空开关31接通，且内侧与内胆2的内部连通。其中，所述抽真空开关31可以是微动开关；所述弹性控制器4包括弹性变形部41和固定座42；所述固定座42安装在箱门5的缘边上，并设有连通内胆2内部的通孔43；所述弹性变形部41可以是 弹性橡胶片，并设于通孔43的外端孔口内，且其周侧缘边与通孔43的周向内壁气密连接，密封住该外端孔口；所述弹性变形部41上设有硬质触控部47，如图2和3，所述弹性变形部41的外侧设有一体成型的卡座48，所述硬质触控部47安装在卡座48上，而且所述硬质触控部47与抽真空开关31触动连接。
本发明所述自动启停抽真空的真空储物箱使用时，在常态下所述弹性变形部41触动抽真空开关31接通，抽真空装置3启动、对箱体1的内胆2进行抽真空；当内胆2的真空度达到设定值时，所述弹性变形部41在大气压的作用下朝内胆2方向变形、抽真空开关31断开(如图3和图6)，停止抽真空；若箱体1内胆2因长时间负压升高至内胆2内外压力平衡时，所述弹性变形部41恢复至原始状态，此时所述弹性变形部41重新触动、接通抽真空开关31(如图2和图5)，抽真空装置3重新启动，对内胆2进行抽真空；如此循环反复，实现真空储物箱的自动抽真空控制。
这样，本发明自动启停抽真空的真空储物箱即可利用弹性控制器4(弹性变形部41)的弹性变形量实现自动抽真空控制，替代了传统复杂的电路控制系统和压力感应系统，节能环保，同时结构明显大大简化，生产加工难度和成本明显降低，有利于大批量生产，普及应用；而且将弹性控制器4安装在箱体1的箱门上，用户即可通过开关箱门来控制抽真空装置的开启和停止，使用操作更方便、更容易。
另外，所述通孔43内还设有变形限定板44，所述变形限定板44与弹性变形部41间隔设置、形成限定腔45，所述变形限定板44上还设有连通限定腔45和内胆2的气孔46，所述通孔43、变形限定板44和气孔46与固定座42一体成型。这样，即可对弹性变形部41的变形量进行限制，保证弹性变形部41的恢复性能，自动抽真空控制更稳定、更可靠。
此外，所述箱体1上设有手动进气阀5，所述手动进气阀5包括阀体51、手动放气拉杆52和复位弹簧53；其中，所述阀体51设有腔体54、与 腔体54连通的第一进气孔55和第二进气孔56，且第一进气孔55通过气管57与内胆2连通；所述手动放气拉杆52可往外拉动地安装在腔体54内，其一端伸出腔体54外，另一端设有用于控制第一进气孔55和第二进气孔56连通和断开的密封头58，而且复位弹簧53套在手动放气拉杆52上；具体结构如图4，所述阀体51设有下端开口的腔体54，所述腔体54的上端顶部和上端周侧分别设有第一进气孔55，所述阀体51的下端开口上设有端盖59；所述手动放气拉杆52安装在腔体54内，且一端从端盖59伸出腔体54外，另一端设有用于堵住第一进气孔55的密封头58，所述密封头58设计成与腔体54上端匹配的弹头形、并设有密封圈50；所述复位弹簧53的两端分别顶在密封头58和端盖59上。当内胆2处于真空状态时，在打开箱门之前，用户需先手动操作手动进气阀5使外界空气进入内胆2内(手动往外拉动手动放气拉杆52，使密封头58与第一进气孔55分离，此时复位弹簧53压缩变形)，直至内胆2的内外压力平衡。
当然，所述箱体1上也可以设有电动进气阀代替所述手动进气阀5，该电动进气阀与抽真空装置3导通连接。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (10)

  1. 一种自动启停抽真空的真空储物箱，其箱体(1)内设有内胆(2)和抽真空装置(3)；其特征在于：所述箱体(1)内还设有弹性控制器(4)，所述弹性控制器(4)的弹性变形部(41)的外侧与抽真空装置(3)的控制电路上抽真空开关(31)连接，且在常态下触动抽真空开关(31)接通、启动抽真空；所述弹性变形部(41)的内侧与内胆(2)的内部连通，且在内胆(2)真空度达到设定值时弹性变形部(41)朝内胆(2)方向变形、抽真空开关(31)断开，停止抽真空。
  2. 根据权利要求1所述自动启停抽真空的真空储物箱，其特征在于：所述弹性控制器(4)安装在箱体(1)的箱门缘边上，在关闭箱门时，常态下的所述弹性变形部(41)触动抽真空开关(31)接通，且内侧与内胆(2)的内部连通。
  3. 根据权利要求2所述自动启停抽真空的真空储物箱，其特征在于：所述弹性控制器(4)包括弹性变形部(41)和固定座(42)；其中，所述固定座(42)安装在箱门的缘边上，并设有连通内胆(2)内部的通孔(43)；所述弹性变形部(41)设于通孔(43)的外端孔口内、密封住该外端孔口。
  4. 根据权利要求3所述自动启停抽真空的真空储物箱，其特征在于：所述通孔(43)内还设有变形限定板(44)，所述变形限定板(44)与弹性变形部(41)间隔设置、形成限定腔(45)，所述变形限定板(44)上还设有连通限定腔(45)和内胆(2)的气孔(46)。
  5. 根据权利要求4所述自动启停抽真空的真空储物箱，其特征在于：所述通孔(43)、变形限定板(44)和气孔(46)与固定座(42)一体成型。
  6. 根据权利要求3所述自动启停抽真空的真空储物箱，其特征在于：所述弹性变形部(41)上设有硬质触控部(47)，所述硬质触控部(47)与 抽真空开关(31)触动连接。
  7. 根据权利要求6所述自动启停抽真空的真空储物箱，其特征在于：所述弹性变形部(41)的外侧设有一体成型的卡座(48)，所述硬质触控部(47)安装在卡座(48)上。
  8. 根据权利要求3或4或5或6或7所述自动启停抽真空的真空储物箱，其特征在于：所述弹性变形部(41)是弹性橡胶片，其周侧缘边与所述通孔(43)的周向内壁气密连接。
  9. 根据权利要求1至7中任一所述自动启停抽真空的真空储物箱，其特征在于：所述箱体(1)上设有手动进气阀(5)，所述手动进气阀(5)包括阀体(51)、手动放气拉杆(52)和复位弹簧(53)；其中，所述阀体(51)设有腔体(54)、与腔体(54)连通的第一进气孔(55)和第二进气孔(56)，且所述第一进气孔(55)通过气管(57)与内胆(2)连通；所述手动放气拉杆(52)可往外拉动地安装在腔体(54)内，其一端伸出腔体(54)外，另一端设有用于控制第一进气孔(55)和第二进气孔(56)连通和断开的密封头(58)，而且复位弹簧(53)套在手动放气拉杆(52)上。
  10. 根据权利要求1至7中任一所述自动启停抽真空的真空储物箱，其特征在于：所述箱体(1)上设有电动进气阀，其与抽真空装置(3)导通连接。
PCT/CN2018/118973 2018-11-15 2018-12-03 一种自动启停抽真空的真空储物箱 WO2020098009A1 (zh)

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CN201821882419.4U CN209064730U (zh) 2018-11-15 2018-11-15 一种自动启停抽真空的真空储物箱
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3173542U (ja) * 2011-11-28 2012-02-09 株式会社ニシムラ 脱気弁及び脱気袋
CN204507720U (zh) * 2015-03-16 2015-07-29 佛山市三水合成电器实业有限公司 无锁自封的抽真空装置
CN105501686A (zh) * 2015-12-31 2016-04-20 东莞市菲腾电子科技有限公司 一种可分离式自动抽真空储物容器
US20180009589A1 (en) * 2016-07-05 2018-01-11 Shin Hung Yih Technology Co., Ltd. Container Cover That Facilitates Creating Negative Pressure and Long Time Sealing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3173542U (ja) * 2011-11-28 2012-02-09 株式会社ニシムラ 脱気弁及び脱気袋
CN204507720U (zh) * 2015-03-16 2015-07-29 佛山市三水合成电器实业有限公司 无锁自封的抽真空装置
CN105501686A (zh) * 2015-12-31 2016-04-20 东莞市菲腾电子科技有限公司 一种可分离式自动抽真空储物容器
US20180009589A1 (en) * 2016-07-05 2018-01-11 Shin Hung Yih Technology Co., Ltd. Container Cover That Facilitates Creating Negative Pressure and Long Time Sealing

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