KR200485788Y1 - Negative pressure storage container - Google Patents

Negative pressure storage container Download PDF

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Publication number
KR200485788Y1
KR200485788Y1 KR2020170001610U KR20170001610U KR200485788Y1 KR 200485788 Y1 KR200485788 Y1 KR 200485788Y1 KR 2020170001610 U KR2020170001610 U KR 2020170001610U KR 20170001610 U KR20170001610 U KR 20170001610U KR 200485788 Y1 KR200485788 Y1 KR 200485788Y1
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KR
South Korea
Prior art keywords
cover member
gear
container
container body
negative pressure
Prior art date
Application number
KR2020170001610U
Other languages
Korean (ko)
Inventor
이 훙 호
Original Assignee
신훙이 테크놀로지 컴퍼니 리미티드
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Priority to KR2020170001610U priority Critical patent/KR200485788Y1/en
Application granted granted Critical
Publication of KR200485788Y1 publication Critical patent/KR200485788Y1/en

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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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • 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
    • 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
    • F04B35/06—Mobile combinations
    • 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

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

Abstract

The negative pressure storage container includes a container cover, a container body, a rotating device, a gear transmission mechanism, and a vacuum pump arranged such that rotation of the rotating device drives the driving gear of the transmission gear set of the gear transmission mechanism to rotate the eccentric wheel, When negative pressure is generated in the body, the link reciprocates the reciprocating piston of the vacuum pump. When the negative pressure reaches a certain level, the bottom wall of the plastic inner cover member of the container cover is curved and separates the drive gear from the rotating device; At this time, therefore, the rotating device idles, preventing overload of the transmission gear set and extending the life of the gear transmission mechanism.

Description

{NEGATIVE PRESSURE STORAGE CONTAINER}

The present invention relates to a storage container technology, and more particularly, to a rotary device which drives a vacuum pump for extracting air out of a container body and prevents the damage of the transmission gear set by idling when a certain level of negative pressure is generated in the container body pressure storage container using a rotary device.

U.S. Patent No. 9,296,542 issued to the present inventors discloses a container having a container housing, a drawer mounted on the container housing and movable between a closed position and an open position, a pivotally mounted rotary knob on the door cover of the drawer a rotary knob, a clockwork coupled to the rotary knob, a drive gear attached to the rotary knob, a transmission gear set rotatable by the drive gear, an eccentric wheel rotatable by the transmission gear set, a pumping pump mounted within the drawer and coupled with the eccentric wheel to create a vacuum in the container housing, an ejection mechanism configured to draw the drawer from the container housing, And an operation member control capable of unlocking the drawer so that the drawer can be drawn out of the container housing by the drawing mechanism A vacuum storage container is disclosed that includes an operating member control mechanism.

According to the above-described conventional mechanical vacuum storage container, if the internal air of the container housing leaks, the container housing can not be automatically filled with air. There are commercially available electronic negative pressure storage containers. However, if the internal air of the electronic negative pressure storage container leaks, the vacuum pumping operation must be performed again, which is inconvenient.

This invention was made in consideration of this situation.

Therefore, the main object of the present invention is to provide a container cover in which the bottom wall of the plastic inner cover member of the container cover is bent in the direction toward the inside of the container body when the negative pressure generated in the container body reaches a certain level, A gear transmission mechanism and a vacuum pump so that the transmission gear set of the gear transmission mechanism moves together with the deformed bottom wall of the inner cover member toward the inside of the container body, Disengaging the drive gear from the gear portion of the shaft; At this time, the rotating device is idling and can not rotationally drive the gear transmission mechanism, thereby preventing the overload of the transmission gear set and extending the service life of the gear transmission mechanism.

Another object of the present invention is to provide a negative pressure storage container capable of keeping food ingredients and eatable items fresh in a container body when a certain level of negative pressure is generated in the container body.

It is another object of the present invention to provide a relief valve comprising a relief valve rod having an inner passage passing between its opposed upper and lower ends and the lower end of the relief valve rod being a relief channel of the inner cover member, And a flexible end cap is fixedly mounted on the upper end of the relief valve rod so that when a negative pressure is generated in the container body, the flexible end cap is sucked by the negative pressure of the inner passage, So as to indicate a signal indicative of the presence of negative pressure; The flexible end cap may further include a top protruding portion located in the top surface center of the flexible end cap and made of another material having a color different from that of the flexible end cap, And to provide a negative pressure storage container.

1 is an exploded perspective view of a negative pressure storage container according to a first embodiment of the present invention,
2 is an oblique bottom perspective view of an assembly of the outer cover member and the rotating device,
3 is an oblique lower perspective view of an assembly of an inner cover member and an inner plastic cushion member,
4 is an exploded perspective view of the container body and the container cover,
FIG. 5 is an obliquely upper assembled perspective view of the negative pressure storage container according to the first embodiment of the present invention,
6 is an enlarged sectional view of the negative pressure storage container according to the first embodiment of the present invention,
Fig. 7 is a view corresponding to Fig. 6 showing the bottom wall of the inner cover member curved toward the inside of the container body when negative pressure is generated in the container body;
8 is an enlarged perspective view of a part of the first embodiment of the present invention showing the relationship between the gear transmission mechanism and the vacuum pump,
9 is a schematic sectional view of a part of the first embodiment of the present invention showing the structure of a vacuum pump,
10 is a schematic cross-sectional view of a portion of a first embodiment of the present invention showing the structure of a relief valve rod,
Fig. 11 is a view corresponding to Fig. 10 showing negative pressure generation,
Figure 12 is a view corresponding to Figure 11 showing that the relief valve rod is depressed downward and the flexible end cap is curved inward;
13 is an oblique bottom exploded perspective view of a portion of the first embodiment of the present invention showing the relationship between the dust covers of the inner cover member of the container cover, the dust proof nets, the suction hole and the relief channel,
14 is an oblique upper perspective view of a portion of the negative pressure storage container according to the second embodiment of the present invention,
15 is a schematic assembly sectional view of a negative pressure storage container according to a second embodiment of the present invention,
16 is a schematic cross-sectional view of a second embodiment of the present invention showing the structure of a relief valve rod,
17 is a schematic cross-sectional view of a second embodiment of the present invention, showing the structure of a vacuum pump and surrounding components,
18 is a block diagram of a motor module, a power supply module, and a switch control module of a negative pressure storage container according to a second embodiment of the present invention;

1 to 8, there is shown a negative pressure storage container according to a first embodiment of the present invention. The negative pressure storage container of the first embodiment includes a container cover 1, a container body 2, a rotating device 3, a gear transmission mechanism 4, and a vacuum pump 5.

The container body 2 defines therein a storage chamber having a side surface 21 that is open to store food and has a bottom surface on which the anti-slip pad 22 is mounted.

The container cover 1 covers the container body 2 and includes an outer cover member 11, an inner cover member 12 and an inner plastic cushion member 13. The outer cover member 11 and the inner cover member 12 are fastened together by a first fastening member 61 (see Figs. 1 and 6) or by grooves (not shown) and tenons (not shown). The inner cover member 12 is made of a plastic material and has an opposite lower side to be fastened to the upper and inner plastic cushion members 13 fastened to the outer cover member 11 (see FIGS. 3, 10 and 11). Further, the inner cover member 12 has a suction hole 1211 located in the bottom wall 121 of the inner cover member (see FIG. 9). The inner plastic cushion member 13 has a suction through hole 131 (see FIGS. 1 and 9) corresponding to the suction hole 1211. When the container cover 1 is covered with the container main body 2, the suction hole 1211 is in a state of communicating with the inner space of the container main body 2.

The rotary device 3 of the first embodiment is a rotary knob rotatably connected to the outer cover member 11 of the container cover 1 and fixed to the lower end of the outer cover member by the second fastening member 62 And an inner shaft 30 (see Figs. 6 and 7). The inner shaft 30 has a gear portion 301 located at the distal end of the inner shaft and suspended inside the outer cover member 11. [ The gear portion 301 of the inner shaft 30 is formed to drive the gear transmission mechanism 4.

The gear transmission mechanism 4 is mounted on the bottom wall 121 of the inner cover member 12 of the container cover 1 and includes a transmission gear set 41, an eccentric wheel 42, and a link 43. The transmission gear set 41 includes a driving gear 411 that meshes with the gear portion 301 of the inner shaft 30 of the rotating device (rotary knob) 3, So that the transmission gear set 41 rotates the eccentric wheel 42. The eccentric wheel 42 is rotatably connected to one end of the link 43 eccentrically. The other end of the link (43) is rotatably connected to the reciprocating piston (51) of the vacuum pump (5).

The vacuum pump 5 is mounted on the bottom wall 121 of the inner cover member 12 of the container cover 1 and arranged to communicate with the suction hole 1211 of the inner cover member 12 (see FIG. 9) . The reciprocating piston 51 of the vacuum pump 5 is driven by the gear transmission mechanism 4 to reciprocate to extract air out of the container body 2. A balance spring 50 (see FIG. 9) is mounted between the reciprocating piston 51 and the vacuum pump 5 to balance the reciprocating motion of the reciprocating piston 51. During inhalation during reciprocating motion, the load is large. On the other hand, at the time of the return operation during the reciprocating motion, the load is small. According to the arrangement of the balance spring 50, the user's hand can feel smooth when the rotating device (rotary knob) 3 is rotated.

6 and 8, when the user rotates the rotary device (rotary knob) 3, the gear portion 301 of the inner shaft 30 drives the drive gear 411, The transmission gear set 41 of the mechanism 4 is rotated (see Figs. 6 and 8). The eccentric wheel 42 is driven to move the link 43 so that the reciprocating motion of the reciprocating piston 51 takes place to draw air out of the container body 2, A negative pressure is generated in the main body 2. When the negative pressure of the container body 2 reaches a certain level, the bottom wall 121 of the plastic inner cover member 12 of the container cover 1 is bent in the direction toward the inside of the container body 2 The transmission gear set 41 of the gear transmission mechanism 4 moves together with the deformed bottom wall 121 of the inner cover member 12 toward the interior of the container body 2 (see FIG. 7) , The engagement of the drive gear 411 is released from the gear portion 301 of the inner shaft 30 of the rotating device (rotary knob) At this time, the rotating device (rotary knob) 3 idles and can not rotationally drive the gear transmission mechanism 4, thereby preventing overload of the transmission gear set 41 and extending the service life of the gear transmission mechanism 4. [

The inner cover member 12 of the container cover 1 also includes a relief channel 122 (see FIG. 10) located in the bottom wall 121 of the inner container cover; The inner plastic cushion member 13 of the container cover 1 further includes a relief hole 132 arranged to communicate with the relief channel 122 (see FIGS. 1 and 10). The sealing pad 71 is mounted on the relief valve rod 7 (see Figs. 10 to 12), and is connected to the relief valve rod 7 along with the relief valve rod 7 to block the relief channel 122 of the inner cover member 12 (See FIG. 10), or may be moved downward away from the relief channel 122 of the inner cover member 12 to open the passage (see FIG. 12). The relief valve rod 7 has an upper end inserted through the positioning hole 111 of the outer cover member 11. The elastic member 70 is mounted between the relief valve rod 7 and the relief channel 122 of the inner cover member 12 to support the relief valve rod 7 so that negative pressure is generated in the container body 2 The relief valve rod 7 is held at a position where the sealing pad 71 blocks the relief channel 122 of the inner cover member 12 (see FIG. 11). The relief valve rod 7 also includes an outer passage 72. When the relief valve rod 7 is pressed downward by an external force (see Fig. 12), the outer passage 72 is closed by the gas (gas) through the gap between the sealing pad 71 and the relief channel 122 of the inner cover member 12 . When the external force is removed from the relief valve rod 7, the resilient member 70 immediately pushes the relief valve rod 7 upward (see FIG. 10) so that the sealing pad 71 blocks the relief channel 122. The relief valve rod 7 further includes an inner passage 73 passing between the opposing upper and lower ends (see Figs. 10 to 12). The lower end of the inner passage (73) is arranged to communicate with the lower side of the relief channel (122) of the inner cover member (12). In addition, the flexible end cap 74 is fixedly mounted to the top of the relief valve rod 7 (see FIGS. 10-12). When a negative pressure is generated in the container body 2, the flexible end cap 74 is sucked by the negative pressure in the inner passage 73 and bent inward (see FIG. 11), thereby indicating a signal showing the presence of the negative pressure. The flexible end cap 74 further includes a top projection 741 located at the top center of the flexible end cap. The upper projection 741 can be made of another material having a color different from that of the flexible end cap 74, so that the negative pressure confirmation display effect can be improved.

13, suction holes 1211 and relief channels 122 in the bottom wall 121 of the inner cover member 12 of the container cover 1 are provided with individual dust cover covers 81 and 82 And individual dustproof nets 83 and 84 are mounted to prevent powder components in the container body 2 from affecting airtight effects or product life. In addition, the dust-proof covers 81 and 82 and the dust-proof nets 83 and 84 are separable, so that it is easy to clean or replace. The inner plastic cushion member 13 is also configured to provide an opening 133 in order to facilitate mounting and dismounting of the dust-proof covers 81, 82 and the dust-proof nets 83, 84.

In this embodiment, the gear portion 301 of the inner shaft 30 of the rotary device (rotary knob) 3 is engaged with the drive gear 411 of the transmission gear set 41 of the gear transmission mechanism 4, All. The transmission gear set 41 includes a large gear 412 coaxially mounted on the lower side of the driving gear 411, a first small gear 413 engaged with the large gear 412, a first small gear 413, And a second small gear 415 which meshes with the intermediate gear 414. The second small gear 415 meshes with the intermediate gear 414, The eccentric wheel 42 is coaxially connected to the second small gear 415 and rotatably coupled to one end of the link 43 in an eccentric manner. The other end of the link (43) is rotatably engaged with the reciprocating piston (51). Therefore, when the rotating device (rotary knob) 3 rotates, the gear portion 301 of the inner shaft 30 is driven to rotate the driving gear 411 and the large gear 412 so that the large gear 412 The first small gear 413 and the intermediate gear 414 are rotated so that the second small gear 415 is driven by the intermediate gear 414 to rotate the eccentric wheel 42 to drive the link 43 So that the reciprocating piston 51 reciprocates.

14 to 18, there is shown a negative pressure storage container according to a second embodiment of the present invention. In this second embodiment, a motor module is used to replace the rotating device 3 of the first embodiment described above. Other technical features of the second embodiment are substantially the same as those of the first embodiment described above. The negative pressure storage container of the second embodiment includes a container cover 1, a container body 2, a rotating device 3, a gear transmission mechanism 4, and a vacuum pump 5.

The container body 2 defines therein a storage chamber having an open side 21 for storing food and has a bottom surface of the container body on which the anti-slip pad 22 is mounted.

The container cover 1 covers the container body 2 and includes an outer cover member 11, an inner cover member 12 and an inner plastic cushion member 13 (see FIGS. 15 to 17). The outer cover member 11 and the inner cover member 12 are fastened together. The inner cover member 12 is made of a plastic material and has an opposite lower side which is fastened to the upper and inner plastic cushion members 13 fastened to the outer cover member 11. Further, the inner cover member 12 has a suction hole 1211 located in the bottom wall 121 (see Fig. 17). The inner plastic cushion member 13 has a suction through hole 131 (refer to FIG. 17) corresponding to the suction hole 1211. When the container cover 1 is covered with the container main body 2, the suction hole 1211 is in a state of communicating with the inner space of the container main body 2.

The rotating device 3 of the second embodiment is a motor module and has an inner shaft 30 coupled to the motor module. The inner shaft 30 has a gear portion 301 located at the distal end of the inner shaft and suspended inside the outer cover member 11. [ The gear portion 301 of the inner shaft 30 is formed to drive the gear transmission mechanism 4. 18, the rotating device (motor module) 3 is electrically coupled to the power supply module 32 (for example, a battery set). The power supply module 32 is electrically coupled to the switch control module 33 which controls on / off of the rotating device (motor module) 3.

The gear transmission mechanism 4 is mounted on the bottom wall 121 of the inner cover member 12 of the container cover 1 and includes a transmission gear set 41, an eccentric wheel 42, and a link 43. The transmission gear set 41 includes a drive gear 411 engaged with the gear portion 301 of the inner shaft 30 of the rotating device (motor module) 3, So that the transmission gear set 41 rotates the eccentric wheel 42. The eccentric wheel 42 is rotatably connected to one end of the link 43 eccentrically. The other end of the link (43) is rotatably connected to the reciprocating piston (51) of the vacuum pump (5).

The vacuum pump 5 is mounted on the bottom wall 121 of the inner cover member 12 of the container cover 1 and arranged to communicate with the suction hole 1211 of the inner cover member 12 (see FIG. 17) . The reciprocating piston 51 of the vacuum pump 5 is driven by the gear transmission mechanism 4 and reciprocates to draw air out of the container body 2. [ A balance spring 50 is mounted between the reciprocating piston 51 and the vacuum pump 5 (see FIG. 17) to balance the reciprocating motion of the reciprocating piston 51. During inhalation during reciprocating motion, the load is large. On the other hand, at the time of the return operation during the reciprocating motion, the load is small. According to the arrangement of the balance spring 50, the user's hand feels soft when the rotating device (motor module) 3 is rotated.

The gear portion 301 of the inner shaft 30 is driven to drive the drive gear 411 so that the transmission gear set of the gear transmission mechanism 4 41 are rotated. During rotation of the transmission gear set 41, the eccentric wheel 42 is driven to move the link 43 to cause reciprocating movement of the reciprocating piston 51 to draw air out of the container body 2, A negative pressure is generated in the main body 2. When the negative pressure of the container body 2 reaches a certain level, the bottom wall 121 of the plastic inner cover member 12 of the container cover 1 is bent in the direction toward the inside of the container body 2, The transmission gear set 41 of the transmission mechanism 4 moves together with the deformed bottom wall 121 of the inner cover member 12 toward the interior of the container body 2 and is rotated by the rotation device (motor module) The engagement of the drive gear 411 is released from the gear portion 301 of the inner shaft 30 of the first clutch C1. At this time, the rotating device (motor module) 3 idles and can not rotationally drive the gear transmission mechanism 4, thereby preventing overload of the transmission gear set 41 and extending the service life of the gear transmission mechanism 4 .

16, the inner cover member 12 of the container cover 1 includes a relief channel 122 located at the bottom wall 121 of the inner cover member; The inner plastic cushion member 13 of the container cover 1 includes a relief hole 132 arranged to communicate with the relief channel 122. The sealing pad 71 is mounted on the relief valve rod 7 and moves upward together with the relief valve rod 7 to block the relief channel 122 of the inner cover member 12, And can be moved downward away from the relief channel 122 of the inner cover member 12 for opening. The relief valve rod 7 has an upper end inserted through the positioning hole 111 of the outer cover member 11. The elastic member 70 is mounted between the relief valve rod 7 and the relief channel 122 of the inner cover member 12 to support the relief valve rod 7 so that negative pressure is generated in the container body 2 The relief valve rod 7 can be held at a position where the sealing pad 71 blocks the relief channel 122 of the inner cover member 12. [ The relief valve rod 7 also includes an outer passage 72. When the relief valve rod 7 is pressed downward by an external force, the gas is discharged from the outer passage 72 through the gap between the sealing pad 71 and the relief channel 122 of the inner cover member 12. When the external force is removed from the relief valve rod 7, the resilient member 70 immediately pushes the relief valve rod 7 upwardly, causing the sealing pad 71 to block the relief channel 122. The relief valve rod 7 further includes an inner passage 73 passing between the opposing upper and lower ends. The lower end of the inner passage (73) is arranged to communicate with the lower side of the relief channel (122) of the inner cover member (12). In addition, the flexible end cap 74 is fixedly mounted to the top of the relief valve rod 7. When a negative pressure is generated in the container body 2, the flexible end cap 74 is sucked by the negative pressure in the inner passage 73 and curves inward, thereby showing a signal showing the presence of negative pressure. The flexible end cap 74 further includes a top projection 741 located at the top center of the flexible end cap. The upper projection 741 can be made of another material having a color different from that of the flexible end cap 74, so that the negative pressure confirmation display effect can be improved.

In conclusion, the present invention has the following features and effects.

1. When the negative pressure generated in the container body 2 reaches a certain level, the bottom wall 121 of the plastic inner cover member 12 of the container cover 1 is curved in the direction toward the inside of the container body 2 The transmission gear set 41 of the gear transmission mechanism 4 moves together with the deformed bottom wall 121 of the inner cover member 12 toward the inside of the container body 2 7), disengages the driving gear 411 from the gear portion 301 of the inner shaft 30 of the rotating device (rotary knob) 3; At this time, the rotating device (rotary knob) 3 idles and can not rotationally drive the gear transmission mechanism 4, thereby preventing overload of the transmission gear set 41 and extending the service life of the gear transmission mechanism 4. [

2. When a certain level of negative pressure is generated in the container body 2, the stored food materials and foods in the container body 2 can be kept fresh.

3. The relief valve rod 7 includes an inner passage 73 passing between the opposed upper and lower ends and the lower end of the relief valve rod communicates with the lower side of the relief channel 122 of the inner cover member 12 And the flexible end cap 74 is fixedly mounted on the upper end of the relief valve rod so that when the negative pressure is generated in the container main body 2, the flexible end cap 74 is pressed against the negative pressure in the inner passage 73 And is curved inward, thereby indicating a signal indicating the presence of negative pressure; The flexible end cap 74 further includes an upper projection 741 located at the center of the upper surface of the flexible end cap and made of another material having a color different from that of the flexible end cap 74, Can be improved.

Claims (10)

A container body including a storage chamber having an open side and a non-slip pad mounted on the bottom side;
A container cover including the outer cover member, the inner cover member, and the inner plastic cushion member covering the container body, the outer cover member and the inner cover member being fastened together, the inner cover member being made of a plastic material, Wherein the inner plastic cushion member includes an upper portion which is fastened to the cover member and an opposite lower side which is fastened to the inner plastic cushion member, the inner cover member includes a suction hole located at the bottom wall of the inner cover member, And a suction through-hole disposed to communicate with an inner space of the container body after the container body is covered with the container body;
An inner shaft rotatably connected to the outer cover member of the container cover and fastened to a lower end of the outer cover member so as to be fixed to the lower end of the outer cover member, A rotating device including a formed gear portion;
A gear transmission mechanism mounted on the bottom wall of the inner cover member of the container cover and including a transmission gear set, an eccentric wheel, and a link, the transmission gear set including: Wherein the eccentric wheel is rotatably connected eccentrically to one end of the link and the link is pivoted to the reciprocating piston of the vacuum pump, - possibly with the other end connected;
And a reciprocating piston mounted on the bottom wall of the inner cover member of the container cover and arranged to communicate with the suction hole of the inner cover member and capable of being driven to reciprocate by the gear transmission mechanism, A vacuum pump for drawing out more air; And
And a balance spring mounted between the reciprocating piston and the vacuum pump,
Here, when the rotary device is rotated by an external force, the gear portion of the inner shaft rotates the drive gear and the transmission gear set of the gear transmission mechanism so that the eccentric wheel moves the link and further the reciprocating piston Reciprocating to draw air out of the container body, thereby creating a negative pressure in the container body; When the negative pressure in the container body reaches a predetermined level, the bottom wall of the plastic inner cover member of the container cover is curved in the direction toward the inside of the container body, whereby the transmission gear set of the gear transmission mechanism The inner cover member is moved toward the inside of the container body together with the deformed bottom wall to release engagement of the driving gear from the gear portion of the inner shaft of the rotating device, Storage container.
The method according to claim 1,
Wherein the inner cover member includes a suction hole and a relief channel respectively located on a bottom wall of the inner cover member, and the inner plastic cushion member communicates with the inner space of the container body after the container cover is covered with the container body A suction through hole disposed; And a relief hole communicating with the relief channel, wherein the outer cover member includes a positioning hole; The relief valve rod has an opposite upper end inserted upward through the positioning hole of the outer cover member; The container cover further includes an elastic member mounted between the relief channel of the relief valve rod and the inner cover member so that when the negative pressure is generated in the container body, the sealing pad seals the relief channel of the inner cover member Supporting the relief valve rod in a position; Wherein the relief valve rod includes an outer passage arranged to discharge gas through a gap between the sealing pad and the relief channel of the inner cover member when the relief valve rod is pressed downward by an external force, The elastic member immediately pushes the relief valve rod upward so that the sealing pad blocks the relief channel; Wherein the relief valve rod further comprises an inner passageway extending between opposing upper and lower ends, the inner passageway includes a lower end disposed in communication with a lower side of the relief channel of the inner cover member, Wherein the flexible end cap is inhaled by the negative pressure and bent inward when the negative pressure is generated in the container body, thereby indicating a signal indicating the presence of the negative pressure.
3. The method of claim 2,
Wherein the flexible end cap includes a top protrusion located at the top center of the flexible end cap.
The method according to claim 1,
Wherein the rotating device comprises a rotary knob rotatably mounted on the outer cover member of the container cover and fixedly connected to the inner shaft.
The method according to claim 1,
The rotating device includes a motor module coupled to the inner shaft, a power supply module electrically coupled to the motor module, and a switch control module electrically coupled to the power supply module to control on / off of the motor module Negative pressure storage container.
A container body including a storage chamber having an open side and a non-slip pad mounted on the bottom side;
A container cover including the outer cover member, the inner cover member, and the inner plastic cushion member covering the container body, the outer cover member and the inner cover member being fastened together, the inner cover member being made of a plastic material, Wherein the inner cover member includes a suction hole and a relief channel respectively located on the bottom wall of the inner cover member, and the inner plastic cushion member includes: And a relief hole communicating with the relief channel, the relief hole communicating with the inner space of the container body after the container cover is covered with the container body;
And a seal pad mounted on the outer cover member, wherein the seal pad is spaced apart from the relief channel such that the seal pad communicates between the relief channel and the relief channel, A relief valve rod movable relative to the outer cover member such that the relief valve rod is in an open position in which it moves;
An inner shaft, and a gear portion located at a distal end of the inner shaft and adapted to be suspended in the inner cover member and configured to drive a gear transmission mechanism;
A gear transmission mechanism mounted on the bottom wall of the inner cover member of the container cover and including a transmission gear set, an eccentric wheel, and a link, the transmission gear set including: Wherein the eccentric wheel is rotatably connected eccentrically to one end of the link and the link is pivoted to the reciprocating piston of the vacuum pump, - possibly with the other end connected;
And a reciprocating piston mounted on the bottom wall of the inner cover member of the container cover and arranged to communicate with the suction hole of the inner cover member, the reciprocating piston being capable of being driven by the gear transmission mechanism, A vacuum pump to extract more; And
And a balance spring mounted between the reciprocating piston and the vacuum pump,
Here, when the rotating device is rotated by an external force, the gear portion of the inner shaft rotates the driving gear and the transmission gear set of the gear transmission mechanism so that the eccentric wheel moves the link and the reciprocating piston further Reciprocating to draw air out of the container body, thereby creating a negative pressure in the container body; When the negative pressure in the container body reaches a predetermined level, the bottom wall of the plastic inner cover member of the container cover is curved in the direction toward the inside of the container body, whereby the transmission gear set of the gear transmission mechanism The inner cover member is moved toward the inside of the container body together with the deformed bottom wall to release engagement of the driving gear from the gear portion of the inner shaft of the rotating device, Storage container.
The method according to claim 6,
The outer cover member includes a positioning hole; The relief valve rod has an opposite upper end inserted upward through the positioning hole of the outer cover member; Wherein the container cover is mounted between the relief channel of the relief valve rod and the inner cover member so that when the negative pressure is generated in the container body, the seal pad is located at a position blocking the relief channel of the inner cover member, And an elastic member for supporting the elastic member; Wherein the relief valve rod includes an outer passage arranged to discharge gas through a gap between the sealing pad and the relief channel of the inner cover member when the relief valve rod is pressed downward by an external force, When the external force is removed from the rod, the elastic member immediately pushes the relief valve rod upwardly, so that the sealing pad blocks the relief channel; Wherein the relief valve rod further comprises an inner passageway extending between opposing upper and lower ends, the inner passageway includes a lower end disposed in communication with a lower side of the relief channel of the inner cover member, Wherein the flexible end cap is configured to be inwardly curved when the flexible end cap is sucked by the negative pressure when a negative pressure is created in the container body thereby indicating a presence of the negative pressure; Wherein the flexible end cap comprises a top projection located in the top surface center of the flexible end cap.
The method according to claim 6,
Wherein the rotating device comprises a rotary knob rotatably mounted on the outer cover member of the container cover and fixedly connected to the inner shaft.
The method according to claim 6,
The rotating device includes a motor module coupled to the inner shaft, a power supply module electrically coupled to the motor module, and a switch control module electrically coupled to the power supply module to control on / off of the motor module Negative pressure storage container.
The method according to claim 6,
The transmission gear set includes a large gear coaxially mounted on the lower side of the driving gear, a first small gear engaged with the large gear, an intermediate gear coaxially connected with the first small gear, Includes a small gear; The eccentric wheel is coaxially connected with the second small gear and is rotatably coupled to one end of the link in an eccentric manner, and the link has another end rotatably coupled to the reciprocating piston, The gear portion of the inner shaft rotatably drives the drive gear and the large gear so that the large gear rotates the first small gear and the intermediate gear, Is driven to rotate the eccentric wheel so that the link is driven to reciprocate the reciprocating piston.
KR2020170001610U 2017-03-31 2017-03-31 Negative pressure storage container KR200485788Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108843536A (en) * 2018-06-25 2018-11-20 上海拓绅汽车电子有限公司 A kind of dual Piston new-energy automobile vacuum pump
KR20220102949A (en) * 2021-01-14 2022-07-21 정진옥 Pumping stopper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2242229Y (en) * 1995-09-22 1996-12-11 陈镇海 Structure-improved vacuum container
CN2390837Y (en) * 1999-08-30 2000-08-09 张坤生 Vacuum pot with displaying vacuum structure
CN2607337Y (en) * 2003-01-24 2004-03-24 福建融林塑胶五金实业有限公司 Sealing box
CN2630162Y (en) * 2003-06-02 2004-08-04 苏福隆 Antistaling box

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2242229Y (en) * 1995-09-22 1996-12-11 陈镇海 Structure-improved vacuum container
CN2390837Y (en) * 1999-08-30 2000-08-09 张坤生 Vacuum pot with displaying vacuum structure
CN2607337Y (en) * 2003-01-24 2004-03-24 福建融林塑胶五金实业有限公司 Sealing box
CN2630162Y (en) * 2003-06-02 2004-08-04 苏福隆 Antistaling box

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108843536A (en) * 2018-06-25 2018-11-20 上海拓绅汽车电子有限公司 A kind of dual Piston new-energy automobile vacuum pump
CN108843536B (en) * 2018-06-25 2019-08-13 上海拓绅汽车电子有限公司 A kind of dual Piston new-energy automobile vacuum pump
KR20220102949A (en) * 2021-01-14 2022-07-21 정진옥 Pumping stopper
KR102476763B1 (en) * 2021-01-14 2022-12-09 정진옥 Pumping stopper

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