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CN113090496B - Portable vacuum-pumping machine and matched vacuum fresh-keeping equipment thereof - Google Patents

Portable vacuum-pumping machine and matched vacuum fresh-keeping equipment thereof Download PDF

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Publication number
CN113090496B
CN113090496B CN202110252300.9A CN202110252300A CN113090496B CN 113090496 B CN113090496 B CN 113090496B CN 202110252300 A CN202110252300 A CN 202110252300A CN 113090496 B CN113090496 B CN 113090496B
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CN
China
Prior art keywords
vacuum
valve body
pumping
sealing
valve
Prior art date
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Active
Application number
CN202110252300.9A
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Chinese (zh)
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CN113090496A (en
Inventor
刘倬
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Shenzhen Mingxian Photoelectric Technology Co ltd
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Shenzhen Mingxian Photoelectric Technology Co ltd
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Priority to CN202110252300.9A priority Critical patent/CN113090496B/en
Publication of CN113090496A publication Critical patent/CN113090496A/en
Application granted granted Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • 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
    • B65D81/2007—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 under vacuum
    • B65D81/2038—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 under vacuum with means for establishing or improving vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The invention provides a portable vacuum-pumping machine which is suitable for pumping vacuum to vacuum refreshing equipment. The portable vacuum extractor comprises a power supply device, a vacuum extractor, an inner shell and an outer shell. The power supply device and the inner shell are integrated in the outer shell. The vacuum pumping device is integrated in the inner shell. The inner shell is provided with an inner shell cavity. The lower end of the power supply device is abutted to the top wall of the inner shell and used for supplying power to the vacuum pumping device. The vacuumizing device is used for outwards extracting air in the vacuum preservation equipment and detecting the vacuum state in the vacuum preservation equipment, and when the vacuum state in the vacuum preservation equipment reaches a preset value, the vacuumizing device stops working. Compared with the prior art, the portable vacuum-pumping machine can be used for pumping out the air in the vacuum refreshing equipment at any time and any place so as to enable the air to be in a vacuum state.

Description

Portable vacuum-pumping machine and matched vacuum fresh-keeping equipment thereof
Technical Field
The invention relates to the technical field of vacuumizing, in particular to a portable vacuumizing machine and matched vacuum preservation equipment thereof.
Background
With the rapid development of national economy, the daily life of the nation is gradually enriched. The following aspects are particularly embodied: such as family dinner, restaurant dinner, outdoor picnics, and car-as-a-house travel, among others. The residual meal after gathering at home needs to be stored in a refrigerator for the next time. However, food materials such as food, dishes or fruits with small volume can be stored in the refrigerator, and if the food materials are large-volume food such as coarse cereals and the like, the storage box cannot be directly placed in the refrigerator; or the restaurant is far away from home, and the rest meal can deteriorate even if the meal is packed and taken back to home under the condition that no refrigerator is used for preserving the food at low temperature in the way; or the food carried by the outdoor picnic is easy to deteriorate under the conditions of long distance on the road or hot weather; furthermore, in the journey, the refrigerator is not arranged in the mobile caravan, and the storage of food is also a great problem.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the present invention provides a portable vacuum extractor and a vacuum refreshing apparatus thereof, which solves the technical problem of difficult storage of the existing food without a refrigerator or without being stored in the refrigerator.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
in a first aspect, a portable vacuum extractor is adapted to extract vacuum from a vacuum refreshing apparatus having a vacuum valve body, the portable vacuum extractor includes a power supply device, a vacuum extractor, an inner casing, and an outer casing;
the shell is a hollow cylindrical body, and the upper end and the lower end of the shell are open;
the power supply device and the inner shell are integrated in the outer shell;
the vacuumizing device is integrated in the inner part of the inner shell;
the inner shell is a hollow cylindrical body and is provided with an inner shell cavity for accommodating the vacuumizing device; the inner shell including a top wall, a bottom wall, and a side wall having an opening extending along a longitudinal axis of the inner shell, the opening communicating with the inner shell chamber; the bottom wall of the inner shell is provided with a communication hole, and the communication hole is communicated with the cavity of the inner shell;
the lower end of the power supply device is abutted against the top wall of the inner shell, and the power supply device is used for supplying power to the vacuumizing device;
the vacuumizing device is used for outwards pumping air in the vacuum refreshing equipment and detecting the vacuum state in the vacuum refreshing equipment, and when the vacuum state in the vacuum refreshing equipment reaches a preset value, the vacuumizing device stops working;
the vacuumizing device comprises a vacuum degree detection device, a vacuumizing motor, a vacuum valve, a vacuumizing connector and a vacuumizing nozzle which are sequentially arranged from top to bottom;
the vacuum degree detection device is used for detecting the vacuum degree in the vacuum preservation equipment;
when in use, the vacuumizing nozzle is inserted with a valve body cover on a vacuumizing valve body of the vacuum refreshing equipment; when the vacuumizing motor is started, air in the vacuum refreshing equipment is pumped out through the vacuumizing valve body, the vacuumizing nozzle, the vacuumizing connector and the vacuum valve;
the vacuum valve comprises a vacuum valve main body and three valve ports arranged at the lower end of the vacuum valve main body;
the vacuum valve main body is provided with an air pumping cavity, and the air pumping cavity is provided with an air inlet and an air outlet;
the three valve ports are respectively a vacuum degree detection connecting port, an air suction port and a release port;
the lower end of the vacuum degree detection connecting port is communicated with a detection port on the vacuum degree detection device, and the upper end of the vacuum degree detection connecting port is communicated with the air pumping cavity;
the lower end of the air exhaust port is communicated with the upper end of the vacuumizing nozzle, the upper end of the air exhaust port is communicated with an air inlet of the air exhaust cavity, when the vacuumizing motor is started, the air exhaust port exhausts air inside the vacuum fresh-keeping equipment to the air exhaust cavity through the vacuumizing nozzle, the outer wall of the air exhaust port is connected with a sealing ring in a sealing mode, and the sealing ring is used for sealing a gap between the air exhaust port and the vacuumizing nozzle;
the lower end of the release port is communicated with the outside, the upper end of the release port is communicated with the air outlet of the air pumping cavity, and the release port is used for releasing air pumped by the air pumping port;
the vacuumizing connector is detachably arranged on the lower side of the bottom wall of the inner shell and covers the communication hole; the vacuumizing nozzle is arranged at the lower end of the vacuumizing connector.
The vacuumizing connector comprises a connecting part fixed with the bottom wall of the inner shell and a hemispherical rubber head which is integrally formed with the connecting part and protrudes downwards, and the vacuumizing nozzle is arranged at the lower end of the rubber head;
the connecting part extends outwards along the circumferential direction to form a connector mounting part;
the vacuum pumping valve body also comprises a valve body main body positioned below the valve body cover and a sealing part used for sealing gaps among the valve body cover, the valve body main body and the vacuum refreshing equipment;
the valve body cover and the valve body main body are connected in a pressing mode through ultrasonic waves;
the valve body cover comprises a cover plate and a first extension part positioned below the cover plate, the cover plate is provided with an axial cover plate through hole, the first extension part is a hollow cylinder with an open lower end, and a cavity of the first extension part accommodates the sealing valve;
the sealing valve comprises a sealing valve body, the lower end of the sealing valve body is open, the sealing valve body is provided with a circumferential side wall and a top wall, the sealing valve body is made of elastic materials, and the top wall of the sealing valve body is provided with a sealing valve through hole capable of opening and closing an opening of the vacuum refreshing equipment;
the valve body main body is provided with an axial valve body main body through hole;
the cover plate through hole, the cavity of the first extension part, the sealing valve through hole, the cavity of the sealing valve main body, the valve body main body through hole and the inner bearing space of the vacuum fresh-keeping equipment are sequentially communicated from top to bottom.
Optionally, the vacuum degree detection device, the vacuum pumping motor and the vacuum valve are arranged in the inner shell cavity;
the vacuum pumping motor and the vacuum valve are externally provided with a fixed shell, and the fixed shell is used for fixedly connecting the vacuum pumping motor and the vacuum valve in the inner shell cavity.
Optionally, the intercommunicating pore extends downwards along the circumferential direction to form a sealing ring, the lower end of the sealing ring is provided with an annular groove to form a double-layer sealing ring for sealing the vacuumizing connector, and the double-layer sealing ring is connected with the connecting part in a sealing manner.
Optionally, the vacuum degree detection device is provided with a vacuum pumping control circuit board, and the vacuum pumping control circuit board is electrically connected with the vacuum degree detection device and the vacuum pumping motor; the vacuumizing control circuit board is used for receiving a detection signal of the vacuum degree detection device and sending a prompt signal; the vacuum pumping control circuit board is also used for receiving a control signal of a switch button arranged on the shell and controlling the vacuum pumping motor to start or stop.
Optionally, the vacuum-pumping device further comprises a vacuum-pumping head protective cover, wherein the vacuum-pumping head protective cover is buckled at the lower end of the vacuum-pumping connector.
The second aspect, a vacuum preservation equipment, its be applicable to portable evacuation machine, vacuum preservation equipment includes the fresh-keeping equipment main part in vacuum and the vacuum valve body of taking out, portable evacuation machine with the cooperation of vacuum valve body is used for outwards extracting the inside air of vacuum preservation equipment.
(III) advantageous effects
The invention has the beneficial effects that: according to the portable vacuum-pumping machine and the matched vacuum preservation equipment thereof, the vacuum-pumping device is integrated in the inner shell, and then the inner shell and the power supply device are integrated in the outer shell, so that the portable vacuum-pumping machine which is convenient to carry is obtained. When the food material vacuum preservation device is used, the vacuumizing nozzle is communicated with the valve body cover of the vacuumizing valve body of the vacuum preservation device, the vacuumizing motor is started, and air in the vacuum preservation device is pumped out through the vacuumizing valve body, the vacuumizing connector and the vacuum valve, so that food materials in the vacuum preservation device are stored in a vacuum state, and the preservation time of the food materials is prolonged. Compared with the prior art, the portable vacuum-pumping machine can be used for vacuumizing the vacuum preservation equipment at any time and any place. In addition, the vacuum-pumping device in the portable vacuum-pumping machine can detect the vacuum degree in the vacuum preservation equipment, and remind a user to stop the work of the vacuum-pumping motor when the vacuum degree reaches a preset value. This setting effectively prevents the time overlength of extraction when the evacuation, causes the inside of vacuum preservation equipment and external pressure differential too big, influences the reuse of user to vacuum preservation equipment.
Drawings
FIG. 1 is a perspective view of a front embodiment 1 of the portable vacuum extractor of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1, shown upside down and in rear view;
FIG. 4 is an enlarged detail view of encircled portion B in FIG. 3;
FIG. 5 is a perspective view of the vacuum connector of FIG. 3;
FIG. 6 is a cross-sectional view of FIG. 1 at A-A;
FIG. 7 is an enlarged detail view of the area circled at C in FIG. 6;
FIG. 8 is a perspective view of embodiment 2 of the vacuum valve body of the vacuum refreshing apparatus of the present invention;
FIG. 9 is an exploded view of FIG. 8;
fig. 10 is a view showing an open state of the sealing valve through hole in fig. 8;
fig. 11 is a view showing a state where the sealing valve through hole in fig. 8 is closed;
FIG. 12 is a cross-sectional view of FIG. 8;
FIG. 13 is a perspective view of embodiment 3 of the vacuum-pumping valve body of the vacuum refreshing apparatus of the present invention;
FIG. 14 is an exploded view of FIG. 13;
FIG. 15 is a cross-sectional view of FIG. 13;
FIG. 16 is a perspective view of embodiment 4 of the vacuum-pumping valve body of the vacuum refreshing apparatus of the present invention;
FIG. 17 is an exploded view of FIG. 16;
fig. 18 is a cross-sectional view of fig. 16.
[ description of reference ]
1: vacuum preservation equipment;
2: a valve body cover; 21: a cover plate; 211: a cover plate through hole; 212: the valve body cover annular pressing part; 213: a date scale is arranged; 22: a first extension portion; 221: a first extension portion groove; 23: a second extension portion; 24: a third extension portion;
3: a valve body main body; 31: a valve body main body through hole; 32: a valve body main body groove; 33: the sealing part is matched with the groove;
4: a sealing valve; 41: a sealing valve body; 411: a seal valve through hole; 42: the sealing valve supports the pressing part;
5: a sealing part; 51: a first seal portion; 511: a first seal part main body; 512: the valve body cover is matched with the groove; 52: a second seal portion; 53: a sealing part main body; 54: the sealing part is an annular pressing part;
6: mounting a plate; 61: a first through hole; 62: a second through hole; 63: mounting plate grooves; 64: an arrow is indicated;
7: an operation section;
8: a month carousel; 81: a month scale;
100: a power supply device; 101: a battery case; 102: a battery assembly; 103: a battery cover; 104: a battery case mounting portion;
200: a vacuum pumping device; 201: a vacuum degree detection device; 2011: a detection port; 202: a vacuum-pumping motor; 203: a vacuum valve; 2031: a vacuum degree detection connecting port; 2032: an air extraction opening; 2033: a release port; 2034: a vacuum valve body; 204: vacuumizing the connector; 2041: a connecting portion; 2042: a rubber head; 2043: a connector mounting part; 205: a vacuumizing nozzle; 2051: a drawing nozzle through hole; 206: vacuumizing the control circuit board; 207: a stationary case;
300: an inner shell; 301: threading holes; 302: a communicating hole; 303: a seal ring; 304: an annular groove;
400: a housing;
500: a vacuum head protective cover;
600: a switch button;
700: a seal ring;
800: switch circuit board.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. As used herein, the terms "upper," "lower," "front," and "rear" refer to the orientation of FIG. 1. The end where the battery cover 103 is located is defined as an upper end.
Example 1:
referring to fig. 1-7, the embodiment of the present invention provides a portable vacuum extractor, which is suitable for extracting vacuum from a vacuum refreshing apparatus having a vacuum valve body. The portable vacuum extractor includes a power supply device 100, a vacuum extractor 200, an inner case 300, and an outer case 400.
Wherein the housing 400 is an elongated hollow cylindrical body with upper and lower ends open for easy assembly of the components. The power supply device 100 and the inner case 300 are integrated in the outer case 400, the power supply device 100 is disposed above the inner case 300, and the vacuum device 200 is integrated in the inner case 300, so that the portable vacuum machine has a compact structure, and is convenient to hold and carry.
Further, the housing 400 is preferably made of a hollow tubular aluminum profile. The aluminum profile is light in weight, so that the weight of the portable vacuum pumping machine is convenient to reduce, and the portable vacuum pumping machine is convenient to carry.
The inner housing 300 is an elongated hollow cylindrical body provided with an inner housing chamber for receiving the vacuum means 200. The inner shell 300 includes a top wall, a bottom wall, and a side wall having an opening extending along a longitudinal axis of the inner shell 300. The opening communicates with the inner housing cavity to facilitate installation of the vacuum 200.
The vacuumizing device 200 is used for outwards extracting air inside the vacuum preservation apparatus 1 and detecting the vacuum state inside the vacuum preservation apparatus 1, so that food materials inside the vacuum preservation apparatus 1 are preserved in a vacuum state. When the vacuum state inside the vacuum refreshing apparatus 1 is detected to reach a predetermined value, the vacuum-pumping device 200 stops working.
The vacuum pumping device 200 comprises a vacuum degree detection device 201, a vacuum pumping motor 202, a vacuum valve 203, a vacuum pumping connector 204 and a vacuum pumping nozzle 205 which are arranged from top to bottom in sequence.
The vacuum degree detection device 201 is used for detecting the vacuum degree in the vacuum preservation equipment 1.
When in use, the vacuumizing nozzle 205 is inserted with the valve body cover 2 on the vacuumizing valve body of the vacuum refreshing equipment 1. When the vacuum-pumping motor 202 is started, the air in the vacuum refreshing apparatus 1 is pumped out through the vacuum-pumping valve body, the vacuum-pumping nozzle 205, the vacuum-pumping connector 204 and the vacuum valve 203.
Further, a vacuum degree detection device 201, a vacuum motor 202, and a vacuum valve 203 are provided in the inner case chamber.
The exterior of the vacuum motor 202 and the vacuum valve 203 is provided with a fixed shell 207, and the fixed shell 207 is used for fixedly connecting the vacuum motor 202 and the vacuum valve 203 in the inner shell cavity.
Further, the bottom wall of the inner shell 300 is opened with a communication hole 302, and the communication hole 302 is communicated with the inner shell chamber. The vacuum connector 204 is detachably disposed on the lower side of the bottom wall of the inner casing 300 and covers the communication hole 302.
Further, the vacuum connector 204 is made of rubber. The vacuuming connector 204 includes a connecting portion 2041 fixed to the bottom wall of the inner casing 300 by bolts, and a hemispherical rubber head 2042 integrally formed with the connecting portion 2041 and protruding downward. The vacuum nozzle 205 is disposed at the middle of the lower end of the rubber head 2042. The vacuum nozzle 205 is inserted with the valve body cover 2 on the vacuum valve body of the vacuum refreshing equipment 1.
Further, the communication hole 302 extends downwards along the circumferential direction to form a sealing ring 303, and the lower end of the sealing ring 303 is provided with an annular groove 304 to form a double-layer sealing ring for sealing the vacuum connector 204. The double-layer sealing ring is hermetically connected with the connecting portion 2041 of the vacuum connector 204, so that the sealing effect between the vacuum connector 204 and the lower end of the inner casing 300 is good.
The connecting portion 2041 extends outward in the circumferential direction to form a connecting head mounting portion 2043. The vacuum connector 204 is fixedly mounted at the lower end of the housing 400 via the connector mounting portion 2043.
The vacuum degree detection device 201 is used to detect the vacuum degree in the vacuum refreshing apparatus 1, and when the vacuum degree in the vacuum refreshing apparatus 1 reaches a predetermined certain range, a "tic" sound is emitted as a prompt signal to remind the user that the vacuum refreshing apparatus 1 reaches the set vacuum degree range, and the use of the vacuum device 200 is stopped.
A vacuum valve 203 connects the vacuum motor 202 to a vacuum nozzle 205.
The vacuum nozzle 205 has an axial nozzle passage 2051 for the passage of the extracted air.
It should be noted that the vacuum valve 203 includes a vacuum valve body 2034 and three valve ports provided at a lower end of the vacuum valve body 2034.
The vacuum valve body 2034 has an air pumping cavity having an air inlet and an air outlet. The three valve ports are respectively a vacuum degree detection connection port 2031, an air suction port 2032 and a release port 2033. The lower end of the vacuum degree detection connecting port 2031 is communicated with a detection port 2011 on the vacuum degree detection device 201, and the upper end of the vacuum degree detection connecting port 2031 is communicated with the air suction cavity, so as to detect the vacuum state in the vacuum refreshing device. The lower extreme of extraction opening 2032 is linked together with the upper end of evacuation mouth 205, and the upper end of extraction opening 2032 is linked together with the air inlet in exhaust chamber, and when starting evacuation motor 202, extraction opening 2032 is through the inside air of evacuation mouth 205 extraction vacuum preservation equipment 1 to exhaust chamber, and the outer wall sealing connection of extraction opening 2032 has sealing washer 700, and sealing washer 700 is used for sealing up the space between extraction opening 2032 and the evacuation mouth 205 to it is better to make the sealed effect of extraction opening 2032 and evacuation mouth 205. The lower end of the release 2033 is in communication with the outside. The upper end of the release hole 2033 is communicated with the air outlet of the air pumping cavity, and the release hole 2033 is used for releasing the air pumped by the air pumping hole 2032.
The vacuum valve 203 and the vacuum motor 202 are externally provided with a fixed shell 207, and the fixed shell 207 is used for fixedly connecting the vacuum valve 203 and the vacuum motor 202 in the inner shell cavity. The vacuum-pumping motor 202 drives the vacuum valve 203 to pump air inside the vacuum refreshing apparatus 1 through the vacuum-pumping nozzle 205.
The vacuum degree detection device 201 is provided with a vacuumizing control circuit board 206, and the vacuumizing control circuit board 206 is electrically connected with the vacuum degree detection device 201 and the vacuumizing motor 202; the vacuumizing control circuit board 206 is used for receiving the detection signal of the vacuum degree detection device 201 and sending out a prompt signal; the vacuum control circuit board 206 is also used for receiving a control signal of the switch button 600 disposed on the housing 400 and controlling the vacuum motor 202 to start or stop.
It should be noted that the casing 400 is provided with a through hole for installing the switch button 600 for controlling the vacuum extractor 200. The switch knob 600 protrudes from a sidewall of the housing 400. Meanwhile, a prompt lamp is arranged in the switch button 600 and used as a prompt signal, and the prompt lamp is electrically connected with the vacuumizing control circuit board 206 and used for prompting a user that the vacuum degree in the vacuum refreshing equipment 1 reaches a preset value.
Further, a switch circuit board 800 is disposed at the upper end of the inner casing 300, and the switch circuit board 800 is electrically connected to the switch button 600 and the vacuum pumping control circuit board 206. The switch circuit board 800 sends a control signal corresponding to the on or off operation of the switch button 600 to the vacuum control circuit board 206, and the vacuum control circuit board 206 controls the start or stop of the vacuum motor 202 and the vacuum degree detection device 201.
Further, the portable vacuum extractor of the present invention further includes a vacuum head protective cover 500. The vacuum head protection cover 500 is fastened to the lower end of the vacuum connector 204 to prevent the vacuum connector 204 and the vacuum nozzle 205 from being contaminated when they are not in use.
The lower end of the power supply device 100 of the present invention abuts against the top wall of the inner casing 300 for supplying power to the vacuum pumping device 200.
The power supply device 100 includes a battery case 101, a battery assembly 102, and a battery cover 103.
Wherein the battery case 101 has an upper end opening, the battery case 101 has a battery chamber for accommodating the battery assembly 102, and the upper end opening communicates with the battery chamber. The battery assembly 102 is formed by four battery cells connected in series end to end. Four battery monomers are connected in series to form a DC 5V power supply. The maximum power of the vacuum pumping device 200 is 1.5W in the operating state, so that the power supply device 100 has the effects of energy saving and environmental protection. The battery assembly 102 is disposed within the battery chamber. The battery cover 103 is disposed at an upper end opening of the battery case 101, and the battery cover 103 is detachably connected to the battery case 101.
Further, an opening at the upper end of the battery case 101 extends outward in the circumferential direction to form a battery case mounting portion 104, the battery case mounting portion 104 is erected at the upper end of the case 400, and a clamping groove for clamping with the battery cover 103 is formed on the battery case mounting portion 104.
Further, the top wall of the inner casing 300 is provided with a threading hole 301 for a lead wire connecting the battery assembly 102 and the vacuum-pumping device 200 in the inner casing cavity to pass through, so that the battery assembly 102 supplies power to the vacuum-pumping device 200.
The portable vacuum extractor is convenient to carry by integrating the vacuum extractor 200 into the inner shell 300 and then integrating the inner shell 300 and the power supply device 100 into the outer shell 400. When the food fresh-keeping device is used, the vacuumizing nozzle 205 is communicated with the valve body cover 2 of the vacuumizing valve body of the vacuum fresh-keeping device 1, the vacuumizing motor 202 is started, and air in the vacuum fresh-keeping device 1 is pumped out through the vacuumizing valve body, the vacuumizing connector 204 and the vacuum valve 203, so that food materials in the vacuum fresh-keeping device 1 are stored in a vacuum state, and the fresh-keeping time of the food materials is prolonged. Compared with the prior art, the vacuum refreshing equipment can be vacuumized by using the portable vacuumizing machine anytime and anywhere. In addition, the vacuum-pumping device 200 of the portable vacuum-pumping machine of the present invention can detect the vacuum degree inside the vacuum refreshing apparatus 1, and remind the user to stop the operation of the vacuum-pumping motor 202 when the vacuum degree reaches a preset value. This setting effectively prevents the time overlength of extraction when the evacuation, causes the inside of vacuum refreshing equipment 1 and external pressure differential too big, influences the reuse of user to vacuum refreshing equipment.
The invention also provides vacuum preservation equipment 1 matched with the portable vacuumizing machine in the embodiment 1, which comprises a vacuum preservation equipment main body and a vacuumizing valve body, wherein the vacuumizing valve body is matched with the portable vacuumizing machine for use and used for outwards pumping air in the vacuum preservation equipment 1 and keeping the vacuum state of the vacuum preservation equipment 1.
The vacuum preservation device 1 is hollow inside and used for containing food materials and providing a vacuum environment for the food materials, so that the food materials can be preserved. The main body of the vacuum preservation device 1 is provided with an opening for matching with the vacuum-pumping valve body to pump the air in the vacuum preservation device 1, so that the vacuum preservation device 1 forms a vacuum environment.
According to the state of the food materials contained in the vacuum preservation device 1, the vacuum preservation device 1 is divided into a preservation box or a preservation bag for containing solid food materials and a bottle for containing liquid food materials.
In the family use, food is put into vacuum refreshing equipment 1 earlier, then uses portable evacuation machine to extract the inside air of vacuum refreshing equipment 1, puts into the refrigerator with vacuum refreshing equipment 1 at last again, can prolong the fresh-keeping time of food to avoid food to take place to scurry the phenomenon of flavor in the refrigerator, and then keep the clean and tidy free from extraneous odour of refrigerator.
Example 2:
referring to fig. 8 to 12, the vacuum-pumping valve body of the vacuum refreshing apparatus 1 according to the embodiment 1 to 2 of the present embodiment is suitable for the vacuum refreshing apparatus 1 for containing solid food materials. The vacuum valve body comprises a valve body cover 2, a valve body main body 3 positioned below the valve body cover 2, a sealing valve 4 used for opening and closing an opening of the vacuum refreshing device 1, and a sealing part 5 used for sealing gaps among the valve body cover 2, the valve body main body 3 and the vacuum refreshing device 1.
The vacuum refreshing device also comprises a mounting plate 6 for mounting the vacuum-pumping valve body on the vacuum refreshing device 1.
The mounting plate 6 is detachably connected with the opening end of the vacuum refreshing equipment 1. The top of the mounting plate 6 is recessed downwardly to form a mounting plate recess 63. The mounting plate recess 63 is for receiving the seal 5. The bottom of the mounting plate groove 63 is provided with a first through hole 61 and a second through hole 62.
The valve body cover is a one-piece member including a cover plate 21 and a first extension 22 located below the cover plate 21.
The cover plate 21 is a circular disk body. The cover 21 is provided with an axial cover through hole 211. The circumferential side wall of the cover plate 21 projects outward in the radial direction thereof to form an annular valve body cover annular pressing portion 212.
The first extension 22 is a hollow cylinder with an open lower end. The cavity of the first extension 22 is intended to house the sealing valve body 41. The bottom of the first extension 22 is recessed upward to form a first extension groove 221 for accommodating a sealing valve pressing portion 42 (described later). The bottom of the first extension part 22 is provided with an ultrasonic press-fit protrusion for ultrasonic press-fit connection with the valve body main body 3.
Further, the sealing valve 4 includes a sealing valve main body 41 and a sealing valve pressing portion 42.
The sealing valve body 41 is open at its lower end and has a circumferential side wall and a top wall. The top wall of the sealing valve body 41 is provided with a sealing valve through hole 411 for opening and closing the opening of the main body of the vacuum refreshing apparatus 1, and the sealing valve through hole 411 is a rectangular parallelepiped. The bottom of the sealing valve body 41 extends radially outward thereof to form an annular sealing valve pressing portion 42.
The sealing valve body 41 is made of an elastic material.
The sealing valve main body 41 is accommodated in the cavity of the first extension portion 22, and the sealing valve pressing portion 42 is accommodated in the first extension portion groove 221.
Further, valve body main part 3 is the disc body, and the top of valve body main part 3 passes through the ultrasonic wave pressfitting arch of first extension 22 to be connected to improve the leakproofness between apron 21 and the valve body main part 3, and then improve the leakproofness of vacuum refreshing equipment 1. The valve body 3 is provided with an axial valve body through hole 31.
The cover plate through hole 211, the cavity of the first extension part 22, the sealing valve through hole 411, the cavity of the sealing valve body 41, the valve body through hole 31 and the inner containing space of the vacuum refreshing apparatus 1 are sequentially communicated from top to bottom.
The top of the valve body 3 is recessed downward to form a valve body groove 32, and the lower portion of the first extension 22 is received in a cavity of the valve body groove 32.
Further, the seal portion 5 includes a first seal portion 51 and a second seal portion 52 located on the side of the first seal portion 51.
The first seal portion 51 includes a first seal portion main body 511 having a hollow cylindrical shape. The outer circumferential side wall of the first sealing part main body 511 is provided with an annular groove, so that the first sealing part 51 is clamped in the first through hole 61 of the mounting plate 6, thereby sealing the gap between the first through hole 61 of the mounting plate 6 and the valve body cover 2.
The first sealing part 51 further includes a valve body cover fitting groove 512, and the valve body cover fitting groove 512 is provided on the upper side of the first sealing part main body 511 and is provided coaxially with the first sealing part main body 511.
The first extension portion 22 of the valve body cover 2 is accommodated in the cavity of the first sealing portion main body 511, the cover plate 21 is accommodated in the valve body cover matching groove 512, and the annular pressing portion 212 of the valve body cover presses against the valve body cover matching groove 512, so as to achieve the sealing connection between the valve body cover 2 and the first sealing portion 51.
The top of the valve body 3 abuts against the bottom of the first seal portion 51.
The second sealing portion 52 is a substantially cylindrical body for sealing the second through hole 62 of the mounting plate 6.
The first seal portion 51 and the second seal portion 52 are both made of an elastic material.
Further, the first seal portion 51 is provided with the operation portion 7 on a side away from the second seal portion 52. The height of the end of the operation portion 7 remote from the first seal portion 51 is higher than the height of the end close to the first seal portion 51. Lifting the operation part 7 upwards can drive the vacuum valve body to move upwards, so as to conveniently open the first through hole 61 or simultaneously open the first through hole 61 and the second through hole 62, so that air enters the vacuum refreshing device 1.
Example 3:
referring to fig. 13 to 15, the vacuum-pumping valve body of the present embodiment is suitable for the vacuum refreshing apparatus 1 for containing solid food materials, and can identify the containing date of the food materials, based on embodiments 1 to 3. The vacuum pumping valve body further comprises a mounting plate 6 for mounting the vacuum pumping valve body on the vacuum refreshing device 1 and a month rotating disc 8 for identifying the month for containing the food materials.
Further, the valve body cover 2 is a one-piece member including a cover plate 21, a first extension 22 and a second extension 23 under the cover plate 21.
The cover plate 21 is a circular disk body. The cover 21 is provided with an axial cover through hole 211. The top of the cover plate 21 is provided with a date scale 213.
The first extension 22 is a hollow cylinder with an open lower end. The cavity of the first extension 22 is intended to house the sealing valve body 41. The bottom of the first extension part 22 is provided with an ultrasonic press-fit protrusion for ultrasonic press-fit connection with the valve body main body 3. The bottom of the first extension 22 is recessed upward to form a first extension groove 221 for accommodating the sealing valve pressing portion 42.
The second extension 23 is a hollow cylinder with an open lower end, the inner diameter of the second extension 23 is larger than the outer diameter of the first extension 22, and the length of the second extension 23 is smaller than the length of the first extension 22.
Further, the sealing valve 4 includes a sealing valve main body 41 and a sealing valve pressing portion 42 located below the sealing valve main body 41.
The sealing valve body 41 is open at its lower end and has a circumferential side wall and a top wall. The top wall of the sealing valve body 41 is provided with a sealing valve through hole 411 for opening and closing the opening of the main body of the vacuum refreshing apparatus 1, and the sealing valve through hole 411 is a rectangular parallelepiped.
The sealing valve body 41 is made of an elastic material.
The bottom of the sealing valve body 41 extends radially outward thereof to form an annular sealing valve pressing portion 42.
The sealing valve body 41 is accommodated in the cavity of the first extension portion 22, and the sealing valve pressing portion 42 is accommodated in a space formed by the first extension portion groove 221 and a valve body groove 32 (described later).
Further, the valve body main body 3 is a disk body. The top of the valve body main body 3 is connected with the ultrasonic laminating protrusion of the first extending part 22 through ultrasonic laminating to improve the sealing performance between the cover plate 21 and the valve body main body 3, and further improve the sealing performance of the vacuum refreshing device 1. The valve body 3 is provided with a valve body through hole 31. The top of the valve body 3 is recessed downward to form a valve body groove 32.
The cover plate through hole 211, the cavity of the first extension part 22, the sealing valve through hole 411, the cavity of the sealing valve body 41, the valve body through hole 31 and the inner containing space of the vacuum refreshing apparatus 1 are sequentially communicated from top to bottom.
Further, the month dial 8 is a circular ring body with a month scale 81 on the top.
Further, the mounting plate 6 is detachably connected to the opening end of the vacuum refreshing apparatus 1.
The mounting plate 6 is a torus. The top of the mounting plate 6 is recessed downwardly to form a mounting plate recess 63. The mounting plate recess 63 is intended to receive the month carousel 8. The bottom of the mounting plate recess 63 is provided with a first through hole 61 for accommodating the seal 5 and the valve body cover 2. The month dial 8, the mounting plate recess 63 and the first through hole 61 of the mounting plate 6 are coaxially arranged.
The top of the mounting plate 6 is provided with an indication arrow 64 for indicating the date.
The valve body cover 2 and the month rotary disc 8 can rotate relative to the mounting plate 6 so as to mark the storage date of the food materials.
The principle of the date of depositing of evacuation valve body sign food material of this embodiment does:
the valve body cover 2 and the month rotary disk 8 are rotated so that the indication arrow 64 on the mounting plate 6 corresponds to the month and date of the food material loading to remind the user of timely using the loaded food material.
Further, the seal portion 5 is a gasket. The seal portion 5 is fitted over the first extension 22 of the valve body cover 2. The upper portion of the seal portion 5 is accommodated in a space formed between the first extension portion 22 and the second extension portion 23.
The outer circumferential side wall of the sealing portion 5 is provided with an annular groove, so that the sealing portion 5 is clamped in the through hole of the mounting plate 6. The sealing part 5 can seal the gap between the through holes of the valve body cover 2 and the mounting plate 6 so as to improve the sealing property and the fresh-keeping capacity of the vacuum fresh-keeping equipment 1. The sealing part 5 can also prevent the air leakage of the vacuum refreshing device 1 when the valve body cover 2 and the month rotary disk 8 rotate.
Example 4:
referring to fig. 16-18, the vacuum-pumping valve body of the present embodiment is suitable for a vacuum refreshing apparatus 1 for containing liquid food materials, based on embodiments 1-2.
Further, the valve body cover 2 is a one-piece member including a cover plate 21, a first extension 22, a second extension 23, and a third extension 24 under the cover plate 21.
The cover plate 21 is a circular disk body. The cover 21 is provided with an axial cover through hole 211. The top of the cover plate 21 is provided with a date scale 213.
The cover plate 21 has a circumferential side wall on which spaced apart operating portions 7 are formed to protrude radially outward. The operation part 7 is lifted upwards to drive the vacuum valve body to move upwards, so that air enters the vacuum refreshing equipment 1, and the vacuum valve body is conveniently detached.
The first extension 22 is a hollow cylinder with an open lower end. The cavity of the first extension 22 is used to house a sealing valve body 41 (to be described later). The bottom of the first extension 22 is recessed upward to form a first extension groove 221 for accommodating a sealing valve pressing portion 42 (to be described later).
The second extension portion 23 is a hollow cylinder with an open lower end, the inner diameter of the second extension portion 23 is larger than the outer diameter of the first extension portion 22, and the length of the second extension portion 23 is smaller than the length of the first extension portion 22.
The third extension 24 is a hollow cylinder with an open lower end, the third extension 24 is located between the first extension 22 and the second extension 23, and the length of the third extension 24 is smaller than that of the second extension 23.
The bottom of the third extending part 24 is provided with an ultrasonic press-fit protrusion for ultrasonic press-fit connection with the valve body main body 3.
Further, the sealing valve 4 includes a sealing valve main body 41 and a sealing valve pressing portion 42.
The sealing valve body 41 is open at its lower end and has a circumferential side wall and a top wall. The top wall of the sealing valve body 41 is provided with a sealing valve through hole 411 for opening and closing the opening of the main body of the vacuum refreshing apparatus 1, and the sealing valve through hole 411 is a rectangular parallelepiped.
The sealing valve body 41 is made of an elastic material. The sealing valve through hole 411 is deformed by a force to open and close the sealing valve through hole 411, thereby opening and closing the opening of the main body of the vacuum refreshing apparatus 1.
The bottom part of the sealing valve body 41 extends radially outwardly thereof to form an annular sealing valve abutment 42.
The sealing valve body 41 is accommodated in the cavity of the first extension portion 22, and the sealing valve pressing portion 42 is accommodated in a space formed by the first extension portion groove 221 and a valve body groove 32 (described later).
Further, the valve body main body 3 is an approximately cylindrical body. The top of the valve body main body 3 is connected with the ultrasonic laminating protrusion of the third extending part 24 through ultrasonic laminating to improve the sealing performance between the cover plate 21 and the valve body main body 3, and further improve the sealing performance of the vacuum refreshing device 1. The valve body 3 is provided with a valve body through hole 31. The top of the valve body 3 is recessed downward to form a valve body groove 32, and the valve body groove 32 is used for accommodating the first extension 22 of the valve body cover 2.
The cover plate through hole 211, the cavity of the first extension part 22, the sealing valve through hole 411, the cavity of the sealing valve body 41, the valve body through hole 31 and the inner containing space of the vacuum refreshing apparatus 1 are sequentially communicated from top to bottom.
The outer circumferential side wall of the valve body 3 is provided with a sealing portion fitting groove 33, and the sealing portion fitting groove 33 is used for housing a sealing portion 5 (described later).
Further, the seal portion 5 includes a seal portion main body 53 and a seal portion annular pressing portion 54.
The sealing portion main body 53 has a hollow cylindrical shape. The top of the seal portion main body 53 projects outward in the radial direction thereof to form a seal portion annular pressing portion 54. The sealing portion main body 53 is fitted in the sealing portion fitting groove 33 of the valve body main body 3 to achieve the sealing connection of the sealing portion 5 and the valve body main body 3. The annular sealing part 54 abuts against the bottom of the second extension 23 of the valve body cover 2 to realize the sealing connection between the sealing part 5 and the valve body cover 2.
The outer circumferential side wall of the sealing part main body 53 is uniformly provided with a plurality of annular bulges so as to further improve the sealing effect. The sealing portion 5 is made of an elastic material. The sealing part 5 can seal the gap between the valve body 3, the valve body cover 2 and the opening of the vacuum refreshing apparatus 1.
The working principle of the vacuum-pumping valve body of the embodiment 2-4 when the vacuum preservation device 1 is vacuumized is as follows:
the air pump pumps air outwards through the cover plate through hole 211 of the cover plate 21, so that the space where the cavity of the first extension portion 22 and the cover plate through hole 211 are communicated forms a vacuum environment, at this time, the internal air pressure of the vacuum refreshing apparatus 1 is greater than the air pressure in the space where the cavity of the first extension portion 22 and the cover plate through hole 211 are communicated, the sealing valve through hole 411 is opened by the air in the vacuum refreshing apparatus 1, and the air in the vacuum refreshing apparatus 1 is exhausted to the outside through the air pump sequentially by the valve body main body through hole 31, the cavity of the sealing valve main body 41, the sealing valve through hole 411, the cavity of the first extension portion 22 and the cover plate through hole 211.
According to the pumping time of the air pump, the air in the vacuum refreshing equipment 1 is completely pumped to the inside of the vacuum refreshing equipment 1 to be vacuum, or the air in the vacuum refreshing equipment 1 is partially pumped to the inside of the vacuum refreshing equipment 1 to be in a required air pressure value, so that different requirements of different articles contained in the vacuum refreshing equipment 1 on the air pressure are met, and the application range of the vacuum refreshing equipment 1 is expanded.
The working principle of the vacuum-pumping valve body in the embodiment 2-4 when the vacuum preservation device 1 maintains pressure is as follows:
when the inside of the vacuum refreshing apparatus 1 is in a vacuum state or at a desired air pressure value, the external air pressure is greater than the internal air pressure of the vacuum refreshing apparatus 1, and the external air pressure presses the sealing valve body 41 of the sealing valve 4 to close the sealing valve through hole 411, so that the inside of the vacuum refreshing apparatus 1 is maintained in the vacuum state or at the desired air pressure value.
In the present invention, the vacuum refreshing apparatus 1 with the vacuum-pumping valve body is not limited to the vacuum refreshing box adapted to contain solid food material in the above embodiment 2, and the vacuum refreshing bottle adapted to contain liquid food material in the embodiment 4 is also applicable to the refreshing bag with the vacuum-pumping valve body. The functions are diversified, and then various food materials can be contained. The types of the preserved food materials are not limited, and the food materials are widely applied in life.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.

Claims (6)

1. A portable vacuum extractor, characterized in that it is suitable for extracting vacuum to the vacuum fresh-keeping equipment (1) with vacuum-extracting valve, the said portable vacuum extractor includes the power supply unit (100), the vacuum-extracting unit (200), the inner shell (300) and the outer shell (400);
the outer shell (400) is a hollow cylindrical body, and the upper end and the lower end of the outer shell are open;
the power supply device (100) and the inner housing (300) are integrated within the outer housing (400);
the vacuum-pumping device (200) is integrated inside the inner shell (300);
the inner shell (300) is a hollow cylindrical body and is provided with an inner shell cavity for accommodating the vacuumizing device (200); the inner shell (300) comprising a top wall, a bottom wall and a side wall having an opening extending along a longitudinal axis of the inner shell (300), the opening communicating with the inner shell cavity; a communicating hole (302) is formed in the bottom wall of the inner shell (300), and the communicating hole (302) is communicated with the cavity of the inner shell;
the lower end of the power supply device (100) abuts against the top wall of the inner shell (300), and the power supply device (100) is used for supplying power to the vacuum-pumping device (200);
the vacuumizing device (200) is used for outwards extracting air in the vacuum refreshing equipment (1), detecting the vacuum state in the vacuum refreshing equipment (1), and stopping the vacuumizing device (200) when the vacuum state in the vacuum refreshing equipment (1) is detected to reach a preset value;
the vacuum pumping device (200) comprises a vacuum degree detection device (201), a vacuum pumping motor (202), a vacuum valve (203), a vacuum pumping connector (204) and a vacuum pumping nozzle (205) which are sequentially arranged from top to bottom;
the vacuum degree detection device (201) is used for detecting the vacuum degree in the vacuum preservation equipment (1);
when in use, the vacuumizing nozzle (205) is inserted with a valve body cover (2) on a vacuumizing valve body of the vacuum refreshing equipment (1); when the vacuumizing motor (202) is started, air in the vacuum refreshing equipment (1) is pumped out through the vacuumizing valve body, the vacuumizing nozzle (205), the vacuumizing connector (204) and the vacuum valve (203);
the vacuum valve (203) comprises a vacuum valve main body (2034) and three valve ports arranged at the lower end of the vacuum valve main body (2034);
wherein the vacuum valve body (2034) has a pumping cavity with an air inlet and an air outlet;
the three valve ports are respectively a vacuum degree detection connecting port (2031), an air pumping port (2032) and a release port (2033);
the lower end of the vacuum degree detection connecting port (2031) is communicated with a detection port (2011) on the vacuum degree detection device (201), and the upper end of the vacuum degree detection connecting port (2031) is communicated with the air suction cavity;
the lower end of the air pumping port (2032) is communicated with the upper end of the vacuumizing nozzle (205), the upper end of the air pumping port (2032) is communicated with an air inlet of the air pumping cavity, when the vacuumizing motor (202) is started, the air pumping port (2032) pumps air in the vacuum refreshing equipment (1) to the air pumping cavity through the vacuumizing nozzle (205), the outer wall of the air pumping port (2032) is hermetically connected with a sealing ring (700), and the sealing ring (700) is used for sealing a gap between the air pumping port (2032) and the vacuumizing nozzle (205);
the lower end of the release port (2033) is communicated with the outside, the upper end of the release port (2033) is communicated with the air outlet of the air extraction cavity, and the release port (2033) is used for releasing the air extracted by the air extraction port (2032);
the vacuumizing connector (204) is detachably arranged on the lower side of the bottom wall of the inner shell (300) and covers the communication hole (302); the vacuumizing nozzle (205) is arranged at the lower end of the vacuumizing connector (204);
the vacuumizing connector (204) comprises a connecting part (2041) fixed with the bottom wall of the inner shell (300) and a hemispherical rubber head (2042) which is integrally formed with the connecting part (2041) and protrudes downwards, and the vacuumizing nozzle (205) is arranged at the lower end of the rubber head (2042);
the connecting part (2041) extends outwards along the circumferential direction to form a connecting head mounting part (2043);
the vacuum pumping valve body also comprises a valve body main body (3) positioned below the valve body cover (2) and a sealing part (5) used for sealing gaps among the valve body cover (2), the valve body main body (3) and the vacuum refreshing equipment (1);
the valve body cover (2) and the valve body main body (3) are connected in a pressing mode through ultrasonic waves;
the valve body cover (2) comprises a cover plate (21) and a first extension part (22) positioned below the cover plate (21), the cover plate (21) is provided with an axial cover plate through hole (211), the first extension part (22) is a hollow cylinder with an open lower end, and a cavity of the first extension part (22) accommodates a sealing valve (4);
the sealing valve (4) comprises a sealing valve body (41), the lower end of the sealing valve body (41) is open and is provided with a circumferential side wall and a top wall, the sealing valve body (41) is made of elastic materials, and the top wall of the sealing valve body (41) is provided with a sealing valve through hole (411) capable of opening and closing an opening of the vacuum refreshing equipment (1);
an axial valve body main body through hole (31) is formed in the valve body main body (3);
the cover plate through hole (211), the cavity of the first extension part (22), the sealing valve through hole (411), the cavity of the sealing valve main body (41), the valve body main body through hole (31) and the inner bearing space of the vacuum refreshing equipment (1) are sequentially communicated from top to bottom.
2. The portable vacuum extractor according to claim 1, wherein said vacuum level detection device (201), said vacuum motor (202) and said vacuum valve (203) are disposed within said inner shell chamber;
and a fixed shell (207) is arranged outside the vacuum-pumping motor (202) and the vacuum valve (203), and the fixed shell (207) is used for fixedly connecting the vacuum-pumping motor (202) and the vacuum valve (203) into the inner shell cavity.
3. The portable vacuum extractor as claimed in claim 2, wherein the communication hole (302) extends downwards along the circumference to form a sealing ring (303), the lower end of the sealing ring (303) is provided with an annular groove (304) to form a double-layer sealing ring for sealing the vacuum extractor (204), and the double-layer sealing ring is connected with the connecting portion (2041) in a sealing manner.
4. The portable vacuum extractor according to claim 1, wherein the vacuum degree detection device (201) is provided with a vacuum control circuit board (206), and the vacuum control circuit board (206) is electrically connected with both the vacuum degree detection device (201) and the vacuum extractor motor (202); the vacuumizing control circuit board (206) is used for receiving a detection signal of the vacuum degree detection device (201) and sending a prompt signal; the vacuum pumping control circuit board (206) is also used for receiving a control signal of a switch button (600) arranged on the shell (400) and controlling the vacuum pumping motor (202) to start or stop.
5. The portable vacuum extractor according to claim 1, further comprising a vacuum head protective cover (500), wherein the vacuum head protective cover (500) is fastened to a lower end of the vacuum connector (204).
6. Vacuum refreshing device, characterized in that it is adapted to a portable vacuum extractor according to any of claims 1 to 5, said vacuum refreshing device (1) comprising a vacuum refreshing device body and a vacuum valve body, said portable vacuum extractor cooperating with said vacuum valve body for extracting the air from the interior of said vacuum refreshing device (1) outwardly.
CN202110252300.9A 2021-03-08 2021-03-08 Portable vacuum-pumping machine and matched vacuum fresh-keeping equipment thereof Active CN113090496B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110252300.9A CN113090496B (en) 2021-03-08 2021-03-08 Portable vacuum-pumping machine and matched vacuum fresh-keeping equipment thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110252300.9A CN113090496B (en) 2021-03-08 2021-03-08 Portable vacuum-pumping machine and matched vacuum fresh-keeping equipment thereof

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Publication Number Publication Date
CN113090496A CN113090496A (en) 2021-07-09
CN113090496B true CN113090496B (en) 2022-05-13

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06317254A (en) * 1993-04-13 1994-11-15 Germano Maina Suction device generating vacuum in container
CN201635951U (en) * 2010-04-16 2010-11-17 陈文娣 Electric air exhaust bar
TWM506204U (en) * 2015-02-16 2015-08-01 Kuan Sheng Ind Co Ltd Pressing type vacuum machine
KR20170138258A (en) * 2016-06-07 2017-12-15 김현진 Vacuum Pump
CN207030004U (en) * 2017-06-27 2018-02-23 厦门七智进出口有限公司 A kind of electronic pumped vacuum systems and the fresh-keeping management system of intelligence
CN207267553U (en) * 2017-10-19 2018-04-24 宁波凯普电子有限公司 A kind of Handheld vacuumizer
CN109707593A (en) * 2017-10-26 2019-05-03 纬和有限公司 Portable extraction device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06317254A (en) * 1993-04-13 1994-11-15 Germano Maina Suction device generating vacuum in container
CN201635951U (en) * 2010-04-16 2010-11-17 陈文娣 Electric air exhaust bar
TWM506204U (en) * 2015-02-16 2015-08-01 Kuan Sheng Ind Co Ltd Pressing type vacuum machine
KR20170138258A (en) * 2016-06-07 2017-12-15 김현진 Vacuum Pump
CN207030004U (en) * 2017-06-27 2018-02-23 厦门七智进出口有限公司 A kind of electronic pumped vacuum systems and the fresh-keeping management system of intelligence
CN207267553U (en) * 2017-10-19 2018-04-24 宁波凯普电子有限公司 A kind of Handheld vacuumizer
CN109707593A (en) * 2017-10-26 2019-05-03 纬和有限公司 Portable extraction device

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