CN113340043A

CN113340043A - Negative pressure fresh-keeping drawer

Info

Publication number: CN113340043A
Application number: CN202110537067.9A
Authority: CN
Inventors: 姬鹏举; 隋红军; 程燃
Original assignee: Aucma Co Ltd
Current assignee: Aucma Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-09-03
Anticipated expiration: 2041-05-18
Also published as: CN113340043B

Abstract

The invention discloses a negative pressure fresh-keeping drawer, which relates to the technical field of refrigeration products and comprises an upper cover assembly and a drawer, wherein the upper cover assembly comprises an upper cover, a lower cover and a sealing ring; a cooling interlayer channel is arranged between an upper cover and a lower cover of the upper cover assembly, the top of the lower cover is provided with a pressure relief vent, and one side of the drawer is provided with an air extraction hole containing a one-way valve; the front end of the sliding part along the closing sliding direction is provided with a drawer buckle, and when the upper cover assembly slides along the closing sliding direction, the drawer buckle enables the upper cover assembly and the drawer to be locked; the top of the upper cover assembly is provided with a linear knob, and the bottom of the knob is provided with a rubber soft surface; when the straight line of the knob is vertical to the front side surface of the drawer, the rubber soft surface blocks the pressure relief vent hole; the linear knob is arranged on one side of the top of the upper cover assembly along the closing sliding direction; the upper cover assembly is provided with a cam hole along the front side surface in the closing sliding direction, one side of the knob in the shape of a straight line is provided with a knob cam, and the knob cam can abut against the side surface of the drawer close to the knob through the cam hole when the knob is rotated.

Description

Negative pressure fresh-keeping drawer

Technical Field

The invention discloses a negative pressure preservation drawer, and relates to the technical field of refrigeration products.

Background

The vacuum fresh-keeping technology is widely applied to food packaging and storage at present, and the aim of keeping fresh is fulfilled by sealing a packaging bag or a container and pumping out partial air in the aspect of packaging; in the aspect of storage, the vacuum storage effective storage space rate in the prior art is low, the vacuum drawer assembly, the vacuum pump and other accessories are integrated together, the storage drawer is arranged in the vacuum cavity, and the drawer slide rail and other accessories are designed in the vacuum cavity, so that a vacuum chamber is increased, but the effective storage space is still a drawer with a built-in sliding function, the extra workload of the vacuum machine is caused, a double-layer structure is needed, and the cost of structural parts is increased; the portability is poor, the drawer is supported in a relatively fixed structure, the storage box cannot move randomly, and the sealing state is lost after the drawer moves. Post cleaning is also troublesome; the assembly structure is complex, and the production process requirement is high. CN103486817 discloses a vacuum preservation drawer, which provides a complete vacuum preservation drawer module, but the opening mode and portability are slightly insufficient, the fetching is inconvenient, and the occupied space is large.

Disclosure of Invention

The invention aims to provide a negative-pressure fresh-keeping drawer, which solves the problems of low space utilization rate, poor portability and complex assembly structure of a vacuum storage device in the prior art.

A negative pressure preservation drawer comprises an upper cover assembly and a drawer, wherein the upper cover assembly comprises an upper cover, a lower cover and a sealing ring;

a cooling interlayer channel is arranged between an upper cover and a lower cover of the upper cover assembly, a pressure relief vent hole is formed in the top of the lower cover, and an air suction hole containing a one-way valve is formed in one side of the drawer.

Preferably, the two sides of the upper cover assembly extend downwards to form sliding parts, and the sliding parts are embedded into sliding rails at the top ends of the front side and the rear side of the drawer.

Preferably, a drawer buckle is arranged at the front end of the sliding part along the closing sliding direction, and when the upper cover assembly slides along the closing sliding direction, the drawer buckle enables the upper cover assembly and the drawer to be locked.

Preferably, a sealing ring is arranged at the joint between the upper cover assembly and the drawer.

Preferably, the top of the upper cover assembly is provided with a linear knob, and the bottom of the knob is provided with a rubber soft surface;

when the straight line of the knob is vertical to the front side surface of the drawer, the rubber soft surface blocks the pressure relief vent hole.

Preferably, the linear knob is arranged on one side of the top of the upper cover assembly along the closing sliding direction;

the upper cover assembly is provided with a cam hole along the front side surface in the closing sliding direction, one side of the knob in the shape of a straight line is provided with a knob cam, and the knob cam can abut against the side surface of the drawer close to the knob through the cam hole when the knob is rotated.

Preferably, the drawer catch disengages the upper cover assembly from the drawer when the cam hole abuts against the side of the drawer.

Preferably, the side of the upper cover assembly opposite to the cam hole is provided with an air inlet hole, and the side of the two upper cover assemblies vertical to the cam hole is provided with an air outlet hole.

Compared with the prior art, the storage drawer body is used as the vacuum chamber, and the sealing cover is added, so that an additional vacuum chamber structural part is omitted; the vacuum space is reduced, and the working time of the vacuum pump is reduced; the structure has smaller volume and lower cost; the drawer is designed into an independent vacuum sealing assembly, can be taken out independently at any time, still keeps a vacuum state, and can be placed in a freezing area and a refrigerating area as required. The disassembly is convenient, and the cleaning is easy; the drawer is a sealed body, so that the assembly is simple and the production efficiency is higher; the cooling speed in the drawer is increased, the refrigeration time is reduced, and more energy is saved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the upper cover assembly of the present invention as it is opened;

FIG. 3 is an exploded view of the upper cover assembly;

FIG. 4 is a front view of the upper cover assembly when closed;

FIG. 5 is a perspective view of FIG. 4;

FIG. 6(a) is the knob position where the pressure relief vent valve is gradually opened, and FIG. 6(b) is the knob position where the drawer is buckled open;

FIG. 7 is a front view of the cooling air flowing in the cooling interlayer channel;

FIG. 8 is a perspective view of FIG. 7;

fig. 9 is a schematic diagram showing the positional relationship between the knob and the pressure relief vent valve.

The reference numerals include: 1-upper cover assembly, 2-drawer buckle, 3-knob, 4-upper cover, 5-lower cover, 6-sealing ring, 7-one-way valve, 8-roller, 9-drawer, 10-air exhaust hole, 11-air inlet hole and 12-air exhaust hole.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments below:

a negative pressure preservation drawer comprises an upper cover assembly 1 and a drawer 9, wherein the upper cover assembly 1 comprises an upper cover 4, a lower cover 5 and a sealing ring 6;

a cooling interlayer channel is arranged between the upper cover 4 and the lower cover 5 of the upper cover assembly 1, the top of the lower cover 5 is provided with a pressure relief vent, and one side of the drawer 9 is provided with an air exhaust hole 10 containing a one-way valve 7.

The two sides of the upper cover assembly 1 extend downwards to form sliding parts, and the sliding parts are embedded into sliding rails at the top ends of the front side and the rear side of the drawer 9.

The front end of the sliding part along the closing sliding direction is provided with a drawer buckle 2, and when the upper cover assembly 1 slides along the closing sliding direction, the drawer buckle 2 enables the upper cover assembly 1 and the drawer 9 to be locked.

And a sealing ring 6 is arranged at the joint between the upper cover assembly 1 and the drawer 9.

The top of the upper cover assembly 1 is provided with a linear knob 3, and the bottom of the knob 3 is provided with a rubber soft surface;

when the straight line of the knob 3 is vertical to the front side surface of the drawer 9, the rubber soft surface blocks the pressure relief vent hole.

The linear knob 3 is arranged on one side of the top of the upper cover assembly 1 along the closing sliding direction;

the front side surface of the upper cover assembly 1 along the closing sliding direction is provided with a cam hole, one side of the straight line shape of the knob 3 is provided with a knob 3 cam, the knob 3 is rotated, and the knob 3 cam can abut against the side surface of the drawer 9 close to the knob 3 through the cam hole.

When the cam hole is abutted against the side face of the drawer 9, the drawer buckle 2 enables the upper cover assembly 1 to be separated from the drawer 9.

The side of the upper cover assembly 1 opposite to the cam hole is provided with an air inlet hole 11, and the side of the two upper cover assemblies 1 vertical to the cam hole is provided with an air outlet hole 12.

When the upper cover assembly 1 of the drawer 9 is in the state shown in fig. 1, the two side buckles of the upper cover 4 of the drawer 9 lock the drawer 9 and the drawer 9 assembly, the drawer 9 is in a sealing state, and the upper cover assembly 1 and the drawer 9 are sealed through the sealing ring 6. Air is pumped through the air pumping holes 10 and stops when a certain pressure is reached. Because the one-way valve 7 is installed at the air exhaust hole 10, external air cannot enter, and the interior of the drawer 9 is in a vacuum sealing state.

The bottom surface of the knob 3 is provided with a rubber soft surface which can be in a sealing position when the linear shape of the knob 3 is vertical to the front side surface of the drawer 9, and the pressure relief vent hole on the lower cover 5 below the knob is blocked, so that the drawer 9 is in a sealing state. When the knob 3 rotates 45 degrees anticlockwise, the soft rubber surface of the knob 3 leaves the pressure relief vent, external air enters the drawer 9, and the drawer 9 finishes pressure relief. And in the process of continuously rotating the knob 3 anticlockwise by 45 degrees to 90 degrees, the cam of the knob 3 contacts the side plate of the drawer 9, the pulley of the upper cover assembly 1 of the drawer 9 is pushed to slide obliquely upwards for a certain distance along the slide way of the drawer 9, the disengaging action of the buckle is finished, and the upper cover assembly 1 of the drawer 9 is continuously pushed backwards, so that the drawer 9 can be completely opened.

After the drawer 9 is pushed back to the preset position of the refrigerator, the refrigerating air inlet is aligned with the air inlet behind the upper cover 4 of the drawer 9, cold air flows through the interlayer channels of the upper cover 4 and the lower cover 5 and is reserved along the exhaust holes on two sides in front of the upper cover 4, and the cooling process of the vacuum drawer 9 is completed.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.

Claims

1. A negative pressure preservation drawer comprises an upper cover assembly and a drawer, and is characterized in that the upper cover assembly comprises an upper cover, a lower cover and a sealing ring;

2. The negative pressure crisper drawer according to claim 1, wherein the two sides of the upper cover assembly extend downward to form sliding portions, and the sliding portions are embedded in sliding rails at the top ends of the front and rear sides of the drawer.

3. The negative-pressure crisper drawer according to claim 1, wherein the front end of the sliding part in the closing sliding direction is provided with a drawer catch, and when the upper cover assembly is slid in the closing sliding direction, the drawer catch locks the upper cover assembly and the drawer.

4. The negative pressure crisper drawer of claim 1, wherein a sealing ring is provided at the junction between the upper cover assembly and the drawer.

5. The negative pressure refreshing drawer according to claim 1, wherein the top of the upper cover assembly is provided with a linear knob, and the bottom of the knob is provided with a soft rubber surface;

6. The negative-pressure refreshing drawer according to claim 1, wherein the linear knob is arranged on one side of the top of the upper cover assembly along the closing sliding direction;

7. The negative pressure crisper drawer of claim 1, wherein the drawer catch disengages the lid assembly from the drawer when the cam hole abuts against a side of the drawer.

8. The negative pressure fresh-keeping drawer according to claim 1, wherein the cam holes are provided with air inlet holes on the side of the upper cover assembly opposite to the cam holes, and air outlet holes are provided on the sides of the upper cover assembly perpendicular to the cam holes.