CN210762084U

CN210762084U - Box cover of preservation box

Info

Publication number: CN210762084U
Application number: CN201921832852.1U
Authority: CN
Inventors: 孙晓东; 岳伯源; 岳仲灏; 张静; 翟俊锋; 岳稷
Original assignee: Shandong Yesheng Glass Co ltd
Current assignee: Shandong Yesheng Glass Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-16
Anticipated expiration: 2029-10-29

Abstract

A box cover of a preservation box belongs to the technical field of preservation boxes. Including lid main part (1), the outer downside of following of lid main part (1) is provided with the sealing washer, and the lateral part interval that encircles lid main part (1) is provided with two at least buckles, its characterized in that: still include sealing plug (2), be provided with exhaust through-hole (102) on lid main part (1), the lower extreme of sealing plug (2) passes exhaust through-hole (102) to with lid main part (1) sliding connection, be provided with exhaust passage between sealing plug (2) and exhaust through-hole (102), the upper portion of sealing plug (2) is provided with sealing ring (201), sealing ring (201) and lid main part (1) cooperate, close exhaust passage. The box cover of the preservation box enables the preservation box to maintain a stable negative pressure or vacuum environment, the storage life of food is prolonged, the operation is convenient during vacuumizing, and the sealing of the preservation box is reliable.

Description

Box cover of preservation box

Technical Field

A box cover of a preservation box belongs to the technical field of preservation boxes.

Background

The preservation box is divided into three types: one is a plastic preservation box: the material is made of resin materials, and the general temperature resistant range is as follows: the maximum temperature is 120 ℃, and the minimum temperature is-20 ℃. One is a toughened glass preservation box: common glass is toughened, and the last is a heat-resistant glass preservation box which is made of high borosilicate glass material. The preservation box is convenient and practical, and can store food in different categories. The preservation box usually comprises a box body at the lower side and a box cover at the upper side, and the box cover is clamped with the box body.

When the preservation box is holding food, the air in the box body can not be exhausted to the greatest extent by the existing preservation box, so that partial air is reserved in the preservation box all the time, food deterioration is easily caused when the preservation box is stored for a long time, food can not be stored for a long time by the existing preservation box, and the use is inconvenient.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: overcomes the defects of the prior art, and provides the box cover of the preservation box which can conveniently exhaust the air in the preservation box and further prolong the food preservation time.

The utility model provides a technical scheme that its technical problem adopted is: this lid of crisper, including the lid main part, the outer downside that follows of lid main part is provided with the sealing washer, and the lateral part interval that encircles the lid main part is provided with two at least buckles, its characterized in that: still include the sealing plug, be provided with the exhaust through-hole on the lid main part, the lower extreme of sealing plug passes the exhaust through-hole to with lid main part sliding connection, be provided with exhaust passage between sealing plug and the exhaust through-hole, the upper portion of sealing plug is provided with the sealing ring, and the sealing ring cooperates with the lid main part, seals exhaust passage.

Preferably, the inner diameter of the vent through hole is larger than the outer diameter of the sealing plug, so that the vent channel is formed.

Preferably, the outer diameter of the sealing ring is larger than the diameter of the vent through hole.

Preferably, the lower side of the outer edge of the sealing ring protrudes downwards to form an annular sealing part matched with the box cover main body.

Preferably, the outer diameter of the sealing ring is equal to the diameter of the exhaust through hole, and a baffle plate for limiting the sealing plug is arranged on the upper side of the sealing plug.

Preferably, the lower end of the sealing ring is tapered, the diameter of which is gradually reduced from top to bottom.

Preferably, a limit ring is arranged around the lower end of the sealing plug, and the distance between the limit ring and the sealing ring is larger than the thickness of the box cover main body.

Preferably, the upper part and the lower part of the limiting ring are both conical parts with the outer diameter gradually increasing from the end part to the middle part.

Preferably, the box cover body is provided with an air pumping cylinder, the air pumping cylinder is a cylinder with a closed lower end, and the exhaust through hole is coaxially arranged at the closed end of the air pumping cylinder.

Preferably, a plurality of triangular pyramidal protrusions with convex middle parts are arranged on the box cover body.

Preferably, the sealing plug is in a cylindrical shape with the upper end closed, and a radial rib plate is arranged in the sealing plug.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. this preservation box's lid is provided with exhaust passage between sealing plug and the exhaust through-hole, sealing plug and lid main part sliding connection, when through exhaust through-hole pair preservation box evacuation, under the effect of evacuation equipment, the sealing plug upward movement, make exhaust passage open, after the evacuation finishes, under the effect of vacuum or negative pressure in the preservation box, external atmospheric pressure promotes the sealing plug and moves down, the sealing ring seals exhaust passage, thereby make preservation box maintain stable negative pressure or vacuum environment, the shelf life of food has been prolonged, convenient operation during the evacuation, and reliable to preservation box's sealed.

2. The sealing part of the sealing ring is matched with the box cover main body to seal the exhaust channel, so that the sealing effect is better, and the sealing between the sealing ring and the box cover main body can be more reliable.

3. The sealing part extends into the exhaust through hole and is matched with the hole wall of the exhaust through hole to seal the exhaust channel, the sealing effect is good, and the baffle plate can prevent the sealing plug from integrally entering the safety box under atmospheric pressure; the lower end of the sealing ring is conical, so that the sealing ring can conveniently enter the sealing through hole.

4. The stop collar can avoid sealing plug and lid main part freedom to break away from, makes lid main part and sealing plug become an organic whole, avoids losing of accessory.

5. The upper part and the lower part of the limiting ring are both conical, so that the manual disassembly of the sealing plug and the box cover main body is facilitated, the sealing plug and the box cover main body can be processed in a split mode, and the assembly is convenient.

6. The air pumping cylinder is convenient to be butted with vacuum pumping equipment.

7. The protruding intensity that has strengthened the lid main part of triangular pyramid has avoided the lid main part to take place to warp under the atmospheric pressure effect, and then influences the sealed of preservation box.

8. The sealing plug is cylindrical with the upper end sealed, deformation of the sealing plug is allowed, the sealing plug and the box cover are convenient to disassemble, the rib plates can increase the strength of the sealing plug, and the sealing plug is prevented from deforming when a vacuum state is maintained in the preservation box, so that the sealing effect is prevented from being influenced.

Drawings

Fig. 1 is a perspective view of a lid of the crisper.

Fig. 2 is a front sectional view of the lid of the crisper.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a perspective view of the sealing plug.

Fig. 5 is a schematic perspective view of a lid of the crisper in embodiment 2.

Fig. 6 is a schematic sectional front view of a lid of the fresh food box in embodiment 2.

Fig. 7 is a partial enlarged view of fig. 6 at B.

In the figure: 1. the box cover comprises a box cover body 101, an air suction cylinder 102, an exhaust through hole 2, a sealing plug 201, a sealing ring 202, a sealing part 203, a limiting ring 204, a rib plate 205 and a baffle plate.

Detailed Description

Fig. 1 to 4 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 7.

The utility model provides a lid of preservation box, includes lid main part 1, and the outer downside that follows of lid main part 1 is provided with the sealing washer, and the lateral part interval that encircles lid main part 1 is provided with two at least buckles, still includes sealing plug 2, be provided with exhaust through-hole 102 on the lid main part 1, exhaust through-hole 102 is passed to the lower extreme of sealing plug 2 to with lid main part 1 sliding connection, be provided with exhaust passage between sealing plug 2 and the exhaust through-hole 102, the upper portion of sealing plug 2 is provided with sealing ring 201, and sealing ring 201 cooperatees with lid main part 1, seals exhaust passage. This preservation box's lid is provided with exhaust passage between sealing plug 2 and the exhaust through-hole 102, sealing

plug

2 and 1 sliding connection of lid main part, when through exhaust through-hole 102 to the preservation box evacuation, under the effect of evacuation equipment, sealing plug 2 upward movement, make exhaust passage open, after the evacuation finishes, under the effect of vacuum or negative pressure in the preservation box, external atmospheric pressure promotes sealing plug 2 and moves down, sealing ring 201 seals exhaust passage, thereby make preservation box maintain stable negative pressure or vacuum environment, the shelf life of food has been prolonged, convenient operation during the evacuation, and reliable to preservation box's sealed.

The present invention is further described with reference to specific embodiments, however, it will be understood by those skilled in the art that the detailed description given herein with respect to the drawings is for better explanation and that the present invention is necessarily to be construed as limited to those embodiments, and equivalents or common means thereof will not be described in detail but will fall within the scope of the present application.

Example 1

As shown in FIGS. 1 to 3: lid main part 1 is circular or square, and in this embodiment, lid main part 1 is circular, and lid main part 1's outer along the downside is provided with the sealing washer to can with sealing connection between the last mouthful of preservation box, and then for the interior evacuation of preservation box or take out the negative pressure and provide the condition. Encircle the lateral part interval equipartition of lid main part 1 have a plurality of buckles that are used for with the crisper joint, in this embodiment, the buckle encircles lid main part 1 outer along the interval equipartition have four to guarantee and the crisper between the joint firm, and then guaranteed to seal reliably between lid main part 1 and the crisper.

The sealing washer is the liquid silica gel material, adopts the food level silica gel that the infant used, and the cross-section of sealing washer is "V" shape, and sealing washer one shot forming, and the outer downside of following of lid main part 1 is provided with annular mounting groove, and in the mounting groove was gone into to the upper portion card of sealing washer, the opening of sealing washer set up. The middle part that encircles the mounting groove is provided with the support ring, and in the opening of sealing washer was stretched into to the support ring to cooperate with the mounting groove and carry out the joint to the sealing washer. Two tip of sealing washer all are provided with outer turn-ups to guarantee more reliably firm with the joint of mounting groove, and rely on the three plastics facade of lid main part 1 to realize the joint to the sealing washer, further guaranteed that the sealing washer firm in connection is reliable.

Be provided with a plurality of regular three pyramid's arch on the lid main part 1, and link to each other between every two adjacent archs to improved the intensity of lid main part 1, avoided lid main part 1 to take place to warp under the effect of atmospheric pressure, the influence is to the sealed of preservation box.

The box cover body 1 is provided with an air extracting cylinder 101, the axis of the air extracting cylinder 101 is parallel to the axis of the box cover body 1, and the air extracting cylinder 101 is arranged on one side of the axis of the box cover body 1. The axial length of the air pump 101 is greater than the axial thickness of the box cover body 1, the air pump 101 and the box cover body 1 are integrally arranged, and the bottom of the air pump 101 is flush with the bottom of the box cover body 1.

The air pumping cylinder 101 is a cylinder with a closed lower end, and the air pumping cylinder 101 is used for being in butt joint with vacuum pumping equipment. The exhaust through hole 102 is coaxially arranged on the closed end of the air extraction cylinder 101, the diameter of the exhaust through hole 102 is smaller than that of the air extraction cylinder 101, and the exhaust through hole 102 is a stepped hole with the diameter of the lower end larger than that of the upper end.

The axial length of the sealing plug 2 is greater than that of the vent through hole 102, the diameter of the sealing plug 2 is smaller than that of the vent through hole 102, the lower end of the sealing plug 2 passes through the vent through hole 102 and then is arranged at the lower side of the vent through hole 102, and a vent passage is formed between the sealing plug 2 and the vent through hole 102.

In this embodiment, a sealing ring 201 is disposed around the upper portion of the sealing plug 2, the diameter of the sealing ring 201 is larger than that of the air exhaust through hole 102, and the sealing ring 201 is engaged with the closed end of the air pumping cylinder 101 to seal the air exhaust through hole, so as to maintain a stable negative pressure or vacuum state inside the fresh keeping box. The sealing plug 2 is connected with the air extraction cylinder 101 in a sliding way.

The lower extreme that encircles sealing plug 2 is provided with spacing ring 203, and spacing ring 203 sets up with sealing plug 2 is integrative, and the external diameter of spacing ring 203 is greater than the internal diameter of exhaust through hole 102, and spacing ring 203 can carry on spacingly to sealing plug 2, avoids sealing plug 2 and lid main part 1 free break away from.

The upper part and the lower part of the limiting ring 203 are both cones with diameters gradually increasing from the end part to the middle part, so that the limiting ring is conveniently installed in the box cover main body 1 and also is conveniently detached from the box cover main body 1, and the use is convenient.

As shown in fig. 4: the sealing plug 2 is in a cylindrical shape with the upper end closed, so that the sealing plug 2 is allowed to deform, and the sealing plug 2 and the box cover body 1 are convenient to disassemble and assemble. The radial rib plate 204 is arranged in the sealing plug 2, so that the strength of the sealing plug 2 is increased, and the sealing performance of the box cover main body 1 is prevented from being influenced by the deformation of the sealing plug 2 caused by the vacuum in the preservation box.

In this embodiment, two rib plates 204 are vertically arranged, the middle parts of the two rib plates 204 are integrally connected, and the end parts of the two rib plates 204 are integrally connected with the inner wall of the sealing plug 2.

The box cover main body 1 is made of plastic materials, and the sealing plug 2 is made of liquid silica gel materials.

The using method of the bottle stopper comprises the following steps: during the use, earlier with lid main part 1 lock in the last mouthful of preservation box to through buckle and preservation box joint, then be connected exhaust tube 101 and evacuation equipment through the exhaust tube, like the vacuum pump, the inlet end of exhaust tube can set up the spacing stop collar to sealing plug 2, thereby avoids the blind end laminating of spacing ring 203 and exhaust tube 101 to seal exhaust passage, and then influences the evacuation of preservation box.

And starting the vacuumizing equipment, wherein the sealing plug 2 moves upwards under the action of the vacuumizing equipment, the exhaust channel is opened, and the gas in the preservation box is pumped out by the vacuumizing equipment. When a certain negative pressure or vacuum is reached in the fresh-keeping box, the exhaust tube is detached, and the sealing plug 2 moves downwards under atmospheric pressure due to the negative pressure or vacuum state in the fresh-keeping box, and the sealing ring 201 is matched with the closed end of the exhaust tube 101 to seal the exhaust passage, so that the negative pressure environment is maintained in the fresh-keeping box.

Compared with the sealing realized by steel balls, the contact area between the closed end of the air pumping cylinder 101 and the sealing ring 201 is larger, and the sealing is more reliable.

Example 2

As shown in FIGS. 5 to 7: example 2 differs from example 1 in that: the diameter of the sealing ring 201 is equal to the diameter of the upper end of the exhaust through hole 102, or the diameter of the sealing ring 201 is slightly larger than the diameter of the upper end of the exhaust through hole 102, and the upper end of the sealing ring 201 is provided with a baffle 205. After the vacuumizing operation is finished, the sealing plug 2 moves downwards under the action of atmospheric pressure, so that the sealing ring 201 extends into the exhaust through hole 102 and seals the air pumping cylinder 101, the baffle plate 205 can limit the sealing plug 2, and the sealing plug 2 is prevented from completely entering the exhaust through hole 102. The lower end of the sealing ring 201 is tapered with a diameter gradually decreasing from top to bottom, so that the sealing ring 201 can enter the exhaust through hole 102 more smoothly.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a lid of preservation box, includes lid main part (1), and the outer downside of following of lid main part (1) is provided with the sealing washer, and the lateral part interval that encircles lid main part (1) is provided with two at least buckles, its characterized in that: still include sealing plug (2), be provided with exhaust through-hole (102) on lid main part (1), the lower extreme of sealing plug (2) passes exhaust through-hole (102) to with lid main part (1) sliding connection, be provided with exhaust passage between sealing plug (2) and exhaust through-hole (102), the upper portion of sealing plug (2) is provided with sealing ring (201), sealing ring (201) and lid main part (1) cooperate, close exhaust passage.

2. The cover of the fresh food box according to claim 1, wherein: the inner diameter of the exhaust through hole (102) is larger than the outer diameter of the sealing plug (2) to form the exhaust channel.

3. The cover of the fresh food box according to claim 1 or 2, wherein: the outer diameter of the sealing ring (201) is larger than the diameter of the exhaust through hole (102).

4. The cover of the fresh food box according to claim 3, wherein: the lower side of the outer edge of the sealing ring (201) is protruded downwards to form an annular sealing part (202) matched with the box cover main body (1).

5. The cover of the fresh food box according to claim 1 or 2, wherein: the outer diameter of the sealing ring (201) is equal to the diameter of the exhaust through hole (102), and a baffle (205) used for limiting the sealing plug (2) is arranged on the upper side of the sealing plug (2).

6. The cover of the fresh food box according to claim 5, wherein: the lower extreme of sealing ring (201) for from top to bottom diameter taper that reduces gradually.

7. The cover of the fresh food box according to claim 1 or 2, wherein: the lower end of the sealing plug (2) is surrounded by a limiting ring (203), and the distance between the limiting ring (203) and the sealing ring (201) is larger than the thickness of the box cover main body (1).

8. The cover of the fresh food box according to claim 7, wherein: the upper part and the lower part of the limiting ring (203) are both conical shapes with the outer diameter gradually increasing from the end part to the middle part.

9. The cover of the fresh food box according to claim 1, wherein: the box cover is characterized in that an air pumping cylinder (101) is arranged on the box cover body (1), the air pumping cylinder (101) is a cylinder with a closed lower end, and an exhaust through hole (102) is coaxially arranged at the closed end of the air pumping cylinder (101).

10. The cover of the fresh food box according to claim 1, wherein: a plurality of triangular pyramidal bulges with convex middle parts are arranged on the box cover main body (1).