CN215206259U

CN215206259U - High leakproofness lid

Info

Publication number: CN215206259U
Application number: CN202121553891.5U
Authority: CN
Inventors: 张国恩
Original assignee: Shantou Baqun Plastic Products Co ltd
Current assignee: Shantou Baqun Plastic Products Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-12-17
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a high leakproofness lid. It includes upper cover plate, lower cover plate and sealing washer, and it has sealed opening to open in the middle of the upper cover plate, installs the spiral cover in the sealed opening, the spiral cover lower extreme be equipped with connecting portion with lift portion in the middle of the lower cover plate is connected, installs the sealing washer bottom the lower cover plate edge, the sealed chimb of terminal surface is established to the upper end card of sealing washer under the upper cover plate. The sealed opening edge equidistance is opened there is the installation bayonet socket, and sealed opening bottom is equipped with installation lug, spacing arch, fixed arch, screens lug, and the spiral cover lower extreme is equipped with annular equidistance on the connecting portion outer wall and is equipped with spacing lug. The utility model discloses an gain effect: the utility model has the advantages of simple structure, easy dismounting is convenient for wash, and the processing ease makes the area of contact increase of sealing washer and box body inner wall through rotatory box cover, can effectively isolate the box external air admission and internal, and is sealed effectual, long service life, this lid structure can be applicable to the not box body of equidimension of arranging, and application scope is wide.

Description

High leakproofness lid

Technical Field

The utility model belongs to the technical field of the sealing tool technique and specifically relates to a high leakproofness lid is related to.

Background

In daily life, people can all select the crisper to be used for storing food, the storage process requires the crisper to completely cut off air and food contact effectively, the purpose of storing the freshness food for a long time has been reached, current crisper comprises box body and lid, should storing the box body of food through with the lid in the time of the use on, play sealed fresh-keeping effect through the combination of lid and box body, but current lid all adopts simple packing seal structure, sealed effect is unsatisfactory, fresh-keeping effect is poor, short service life, can't satisfy fresh-keeping requirement, and the frictional force of lid and box body is big after storing for a long time, difficult opening, the operation is inconvenient.

Disclosure of Invention

The utility model aims to solve the defects of the prior sealing cover body and provide a high-sealing cover body with simple structure, convenient operation, good sealing performance and long service life,

The utility model provides a high leakproofness lid, includes upper cover plate, lower cover plate and sealing washer, it has sealed opening to open in the middle of the upper cover plate, install the spiral cover in the sealed opening, the spiral cover lower extreme be equipped with connecting portion with lift portion in the middle of the lower cover plate is connected, install the sealing washer bottom the lower cover plate edge, the sealed chimb of terminal surface is established to the upper end card of sealing washer under the upper cover plate, and the sealing washer forms a high-efficient seal structure with the combination of upper and lower cover plate, and the lift of cooperation spiral cover control upper cover plate utilizes the outside extrusion force of gradient that the lift process formed to increase the sealed area of contact of sealing washer in order to realize improving lid sealing performance.

Preferably, upper cover plate outward flange below is equipped with sealed recess, makes sealed upper end edge of the rubber ring keep in the upper cover plate below through sealed recess, the outer terminal surface of the sealed chimb of terminal surface can be ensured to lift in-process and can not appear blocking or the dead problem of card for inside inclined plane under the upper cover plate, can also effectively provide a sufficient outside extrusion force for the sealing washer simultaneously, ensures the sealing performance of sealing washer, sealed chimb sets up at sealed recess inboard.

Preferably, sealed opening edge equidistance is opened there is the installation bayonet socket, sealed opening bottom is equipped with installation lug, spacing arch, fixed arch, screens lug, the installation lug sets up at installation bayonet socket rear, spacing arch sets up at installation lug rear, the screens lug sets up in installation bayonet socket the place ahead, fixed arch sets up in screens lug the place ahead. Preferably, the front end face of the mounting lug is a sliding slope surface inclined to the lower end face of the upper cover plate.

Preferably, the lower end of the spiral cover is provided with a connecting part outer wall, the connecting part outer wall is provided with limiting lugs at equal intervals in an annular shape, the limiting lugs are matched with the mounting bayonets, a mounting inclined plane is arranged behind the limiting lugs and matched with the sliding slope surface, and the lower end of the connecting part outer wall is provided with external threads.

Preferably, the outer edge of the upper end face of the lower cover plate is provided with a sealing ring mounting groove, the inner wall of the lifting part is provided with an internal thread, and the internal thread is matched with the external thread at the lower end of the outer wall of the connecting part.

Preferably, a sealing ring supporting plate is arranged below the sealing ring mounting groove, and the sealing ring can be firmly clamped on the lower cover plate through the sealing ring supporting plate.

Preferably, sealing washer inner wall lower extreme is equipped with the installation chimb, the installation chimb sets up in sealing washer mounting groove with the cooperation embedding of sealing washer mounting groove, the inner wall of sealing washer is the sealed skew wall that leans out, sealed skew wall and the laminating of sealed chimb outer wall.

Preferably, the installation chimb top is equipped with sealed spacing step, can restrict the upper cover plate and continue to descend after the sealed chimb of upper cover plate supports sealed spacing step's upper surface.

Preferably, be equipped with the portion of gripping in the middle of the spiral cover and can make things convenient for user's operation spiral cover more, spiral cover upper surface is equipped with the instruction recess, can let the user install the spiral cover more fast.

Compared with the prior art, the utility model discloses gain effect as follows has: the utility model has the advantages of simple structure, easy dismounting is convenient for wash, only need rotate the spiral cover gently when using alright accomplish the sealed to the lid, the processing ease makes the area of contact increase of sealing washer and box body inner wall through rotatory lid, can effectively completely cut off the external air admission of box and internal, and is sealed effectual, long service life, this lid structure can be applicable to the not box body of equidimension of arranging, and application scope is wide.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of the upper cover plate structure of the present invention.

Fig. 4 is a schematic structural diagram of the sealing ring of the present invention.

Fig. 5 is a schematic view of the structure of the lower cover plate of the present invention.

Fig. 6 is a schematic view of the cross-sectional structure of the lower cover plate of the present invention.

Fig. 7 is a schematic view of the screw cap structure of the present invention.

Fig. 8 is a usage state diagram of the present invention.

The reference numbers illustrate:

1-upper cover plate, 2-sealing ring, 3-lower cover plate, 4-sealing opening, 5-rotary cover, 6-connecting part, 7-lifting part, 8-sealing convex edge, 9-sealing groove, 10-mounting bayonet, 11-mounting lug, 12-limiting lug, 13-fixing lug, 14-clamping lug, 15-sliding slope, 16-limiting lug, 17-mounting slope, 18-sealing ring mounting groove, 19-sealing ring supporting plate, 20-mounting convex edge, 21-sealing inclined wall, 22-sealing limiting step, 23-holding part and 24-indicating groove.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

To further clarify the objects, features, and functions of the present invention, a review board may further describe the following detailed description of the invention in conjunction with the accompanying drawings:

as shown in fig. 1-8, the utility model relates to a high leakproofness lid, as shown in fig. 1-2, including upper cover plate 1, lower cover plate 3 and sealing washer 2, it has sealed opening 4 to open in the middle of the upper cover plate 1, install spiral cover 5 in the sealed opening 4, spiral cover 5 lower extreme be equipped with connecting portion 6 with lift 7 in the middle of lower cover plate 3 is connected, install sealing washer 2 bottom cover plate 3 edge down, 2 upper end blocks of sealing washer establish the sealed chimb 8 of terminal surface under the upper cover plate 1, sealing washer 2 forms a high-efficient seal structure with the combination of upper and lower cover plate, and the lift of cover plate 1 is gone up and down in the cooperation spiral cover 4 control, utilizes the outside extrusion force of gradient that the lift process formed to increase the sealed area of contact of sealing washer 2 in order to realize improving lid sealing performance's purpose.

Preferably, as shown in fig. 3, a sealing groove 9 is arranged below the outer edge of the upper cover plate 1, the outer end surface of the sealing flange 8 of the lower end surface of the upper cover plate 1 is an inward inclined surface, the inward inclined surface can ensure that the problem of blockage or jamming cannot occur in the lifting process, meanwhile, an enough outward extrusion force can be effectively provided for the sealing ring 2, the sealing performance of the sealing ring 2 is ensured, and the sealing flange 8 is arranged inside the sealing groove 9.

Preferably, 4 marginal equidistance of sealed opening are opened there is

installation bayonet socket

10, 4 bottoms of sealed opening are equipped with installation lug 11, spacing arch 12, fixed protrusion 13, screens lug 14, installation lug 11 sets up at installation bayonet socket 10 rear, spacing arch 12 sets up at installation lug 11 rear, screens lug 14 sets up in installation bayonet socket 10 the place ahead, fixed protrusion 13 sets up in screens lug 14 the place ahead.

Preferably, the front end face of the mounting lug 11 is a sliding slope 15 inclined to the lower end face of the upper cover plate 1.

Preferably, as shown in fig. 7, the lower end of the screw cap 5 is provided with a limiting bump 16 on the outer wall of the connecting portion 6 at an equal interval in a ring shape, the limiting bump 16 is matched with the mounting bayonet 10, a mounting inclined surface 17 is arranged behind the limiting bump 16, the mounting inclined surface 17 is matched with the sliding slope surface 15, and the lower end of the outer wall of the connecting portion 6 is provided with an external thread.

Preferably, as shown in fig. 5-6, a sealing ring mounting groove 18 is formed on the outer edge of the upper end face of the lower cover plate 3, and an internal thread is formed on the inner wall of the lifting part 7 and is matched with an external thread on the lower end of the outer wall of the connecting part 6.

Preferably, a seal ring supporting plate 19 is arranged below the seal ring mounting groove 18.

Preferably, as shown in fig. 4, the lower end of the inner wall of the sealing ring 2 is provided with a mounting flange 20, the mounting flange 20 is embedded in the sealing ring mounting groove 18 in cooperation with the sealing ring mounting groove 18, the inner wall of the sealing ring 2 is an inclined sealing wall 21 inclined outwards, and the inclined sealing wall 21 is attached to the outer wall of the sealing flange 8.

Preferably, as shown in fig. 4, a sealing and limiting step 22 is provided above the mounting flange 20.

Preferably, as shown in fig. 7, a gripping part 23 is provided in the middle of the screw cap 5, and an indication groove 24 is provided on the upper surface of the screw cap 5.

Example (b):

during the equipment, earlier with the installation chimb 20 embedding fixed mounting of sealing washer 2 in the sealing washer mounting groove 18 of the up end of lower cover plate 3, put the sealed chimb 8 card of up end under the upper cover plate 1 at 2 upper end inner walls of sealing washer, install the spiral cover 5 in sealed opening 4 according to the direction of instructing recess 24 after that, earlier pass installation bayonet socket 10 to spacing lug 16, connecting portion 6 and lifting unit 7 are connected simultaneously, the external screw thread of connecting portion 6 and the internal thread engagement of lifting unit 7, rotate spiral cover 5 after that and make spacing lug 16 card put between installation lug 11 and spacing arch 12 after letting the installation inclined plane 17 of spacing lug 16 slide from the domatic 15 of slip, accomplish the equipment.

When the sealing device is used, as shown in fig. 8, an assembled box cover is arranged on an opening of a box body, a sealing ring is attached to the edge of the opening of the box body in advance, a holding part 23 is held by fingers to rotate a screw cover 5 while pressing down, the screw cover 5 rotates to drive a limiting lug 16 and an external thread to move and rotate, the external thread of a connecting part 6 is meshed with the internal thread of a lifting part 7 to generate a downward acting force, an upper cover plate 1 is driven by the screw cover 5 to press down, in the process of pressing down the upper cover plate 1, an outer end inclined surface of a sealing convex edge 8 is contacted with a sealing inclined wall 21 of the sealing ring 2, along with the gradient outward extrusion force formed by pressing down of the upper cover plate 1, the outer end inclined surface of the sealing convex edge 8 downwards extrudes the sealing inclined wall 21 to enable the sealing ring 2 to expand outwards, the outer wall of the sealing ring 2 is completely attached to the edge of the opening of the box body, the upper end part of the sealing ring 2 is embedded into a sealing groove 9, in the process of pressing down, an installation inclined surface 17 of the limiting lug 16 is moved to be contacted with a limiting lug 12 and slide from the limiting lug 12, and after the installation inclined plane 17 of the limiting lug 16 continuously slides over the fixing bulge 13, the limiting lug 16 is clamped between the fixing bulge 13 and the clamping lug 14, and the rear end face of the limiting lug 16 abuts against the front end face of the fixing bulge 13, so that the rotary cover 5 is fixed in the sealing opening 4, and sealing and pressing are completed.

When the lower end face of the sealing flange 8 of the upper cover plate 1 abuts against the sealing limit step 22, the upper cover plate 1 stops pressing.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a high leakproofness lid, its characterized in that, includes upper cover plate, lower cover plate and sealing washer, it has sealed opening to open in the middle of the upper cover plate, install the spiral cover in the sealed opening, the spiral cover lower extreme be equipped with connecting portion with lift portion in the middle of the lower cover plate is connected, install the sealing washer bottom the lower cover plate edge, the sealed chimb of terminal surface is established to the upper end card of sealing washer under the upper cover plate.

2. The high-tightness box cover according to claim 1, wherein a sealing groove is formed below the outer edge of the upper cover plate, the outer end surface of the sealing flange of the lower end surface of the upper cover plate is an inward inclined surface, and the sealing flange is disposed inside the sealing groove.

3. The high-tightness box cover according to claim 1, wherein the sealing opening edge is equidistantly opened with an installation bayonet, the bottom of the sealing opening is provided with an installation lug, a limiting bulge, a fixing bulge and a clamping lug, the installation lug is disposed behind the installation bayonet, the limiting bulge is disposed behind the installation lug, the clamping lug is disposed in front of the installation bayonet, and the fixing bulge is disposed in front of the clamping lug.

4. The box cover with high sealing performance as claimed in claim 3, wherein the front end face of the mounting protrusion is a sliding slope inclined toward the lower end face of the upper cover plate.

5. The high-tightness box cover according to claim 1, wherein the lower end of the screw cover is provided with a connecting portion outer wall on which a plurality of limit protrusions are arranged at equal intervals in a ring shape, the limit protrusions are engaged with the installation bayonet, an installation inclined surface is arranged behind the limit protrusions, the installation inclined surface is engaged with the sliding slope surface, and the lower end of the connecting portion outer wall is provided with an external thread.

6. The high-sealability box cover according to claim 1, wherein the outer edge of the upper end surface of the lower cover plate is provided with a sealing ring mounting groove, the inner wall of the lifting part is provided with an internal thread, and the internal thread is matched with the external thread at the lower end of the outer wall of the connecting part.

7. The box cover with high sealing performance according to claim 6, wherein a sealing ring supporting plate is arranged below the sealing ring mounting groove.

8. The high-tightness box cover according to claim 1, wherein the lower end of the inner wall of the sealing ring is provided with a mounting flange, the mounting flange is embedded in the mounting groove of the sealing ring in a matching manner with the mounting groove of the sealing ring, the inner wall of the sealing ring is an outward inclined sealing wall, and the inclined sealing wall is attached to the outer wall of the sealing flange.

9. The box cover with high sealing performance as claimed in claim 8, wherein a sealing and limiting step is provided above the mounting flange.

10. The box cover with high sealing performance according to claim 1 or 5, wherein a holding part is arranged in the middle of the screw cover, and an indicating groove is arranged on the upper surface of the screw cover.