阅读说明：本技术 密封装置 (Sealing device ) 是由 陈浩能 于 2019-09-29 设计创作，主要内容包括：本申请提供一种密封装置,包括密封环和密封套,所述密封环包括依次连接的内表面、顶面和外表面,所述密封套包括密封盖,所述密封盖包括盖体、塞体和侧板,所述塞体和所述侧板凸设在所述盖体的同侧,所述侧板环绕设置于所述塞体的外围,所述塞体伸入所述密封环内与所述内表面密封配合,所述盖体与所述顶面密封配合,所述侧板与所述外表面直接或间接配合以固定所述密封套。本申请所述密封装置用于密封塑料袋的袋口,提高塑料袋的密封效果。(The application provides a sealing device, including sealing ring and seal cover, the sealing ring is including internal surface, top surface and the surface that connects gradually, the seal cover is including sealed lid, sealed lid is including lid, cock body and curb plate, the cock body with the curb plate is protruding to be established the homonymy of lid, the curb plate encircle set up in the periphery of cock body, the cock body stretches into in the seal ring with the sealed cooperation of internal surface, the lid with the sealed cooperation of top surface, the curb plate with the direct or indirect cooperation of surface is in order to fix the seal cover. This application sealing device is used for the sack of sealed plastic bag, improves the sealed effect of plastic bag.)

1. The sealing device is characterized by comprising a sealing ring and a sealing sleeve, wherein the sealing ring comprises an inner surface, a top surface and an outer surface which are sequentially connected, the sealing sleeve comprises a sealing cover, the sealing cover comprises a cover body, a plug body and a side plate, the plug body and the side plate are convexly arranged at the same side of the cover body, the side plate is arranged around the periphery of the plug body, the plug body extends into the sealing ring and is matched with the inner surface, the cover body is in sealing fit with the top surface, and the side plate is directly or indirectly matched with the outer surface to be fixed with the sealing sleeve.

2. The sealing device of claim 1, wherein said cover sealingly engages said top surface with a sealing gasket.

3. The sealing device according to claim 1 or 2, wherein the sealing ring further comprises a bottom surface connected between the outer surface and the inner surface, the sealing boot further comprises a sealing base, the sealing base comprises a bottom plate and a partition plate, the bottom plate is provided with a through hole penetrating through the bottom plate, the partition plate is convexly arranged on one side of the bottom plate, the bottom plate is matched with the bottom surface, the through hole is communicated with an annular space of the sealing ring, the side plate is detachably arranged on the partition plate to fix the sealing base, and the annular space is a hollow area surrounded by the sealing ring.

4. The sealing device of claim 3, wherein the side plate indirectly engages the outer surface through the partition, and the sealing base further comprises a side frame spaced apart from the partition on a same side of the bottom plate, the side frame disposed around a periphery of the partition, a surface of the side frame facing the partition engaging a surface of the side plate facing away from the plug body.

5. The sealing device of claim 4, wherein the surface of the partition facing the side frame is at an angle equal to or greater than 90 degrees to the bottom plate.

6. The sealing device of claim 5, wherein the angle between the surface of the side plate facing the plug body and the cover body is equal to or greater than the angle between the surface of the partition plate facing the side frame and the bottom plate.

7. The sealing device according to claim 3, wherein the bottom plate is provided with a receiving groove, the receiving groove is communicated with an annular space of the sealing ring, and the plug body extends into the receiving groove through the sealing ring and is matched with a bottom surface of the receiving groove.

8. The sealing device of claim 3, wherein the sealing base comprises a first sub-base and a second sub-base, the first sub-base comprises a first sub-base plate and a first sub-partition, the second sub-base comprises a second sub-base plate and a second sub-partition, the first sub-base is detachably connected with the second sub-base so that the first sub-base plate and the second sub-base plate form the base plate, and the first sub-partition and the second sub-partition form the partition.

9. The sealing device of claim 3, wherein the sealing cap defines a receiving cavity extending through the cap body and the plug body, the receiving cavity including an outlet port communicating with the through hole and an inlet port disposed opposite the outlet port, the sealing device further comprising a valve assembly for controlling the flow of gas between the outlet port and the inlet port.

10. The sealing device of claim 9, wherein the valve assembly includes a one-way valve disposed within the receiving cavity to restrict gas flow in a direction from the gas outlet to the gas inlet.

11. The sealing device of claim 9 or 10, wherein the valve assembly comprises a control valve for controlling the communication between the gas inlet and the gas outlet.

12. The sealing device of claim 1, wherein the plug body is in sealing engagement with the inner surface via a sealing ring.

13. The sealing device of claim 1, wherein an angle between a surface of the plug body facing the side plate and the cover is equal to or greater than 90 degrees.

14. A closure assembly as claimed in claim 1, wherein a handle is provided on a surface of the cap facing away from the plug body.

15. The sealing device of claim 1, further comprising a locking cap removably fitted over an outer circumferential surface of the sealing cap.

Technical Field

The application relates to the technical field of sealing, in particular to a sealing device.

Background

Plastic bags are widely used in daily life for packaging daily necessities or foods due to their advantages of low cost, light weight, large capacity, and convenience in storage. At present, article are placed in the plastic bag after, often adopt the mode of knoing to seal the sack of plastic bag, and the sack sealing performance that the mode of knoing was sealed is relatively poor, and article drop or leak and spill from the sack of plastic bag very easily, have seriously influenced the sealed effect of plastic bag.

Disclosure of Invention

The invention aims to provide a sealing device which is used for sealing the opening of a plastic bag and improving the sealing effect of the plastic bag.

This application sealing device includes sealing ring and seal cover, the sealing ring is including the internal surface, top surface and the surface that connect gradually, the seal cover is including sealed lid, sealed lid is including lid, cock body and curb plate, the cock body with the curb plate is protruding to be established the homonymy of lid, the curb plate encircle set up in the periphery of cock body, the cock body stretches into in the seal ring with the internal surface cooperation, the lid with the sealed cooperation of top surface, the curb plate with the direct or indirect cooperation of surface is in order to fix the seal cover.

The cover body is in sealing fit with the top surface through a sealing gasket.

The sealing ring further comprises a bottom surface connected between the outer surface and the inner surface, the sealing sleeve further comprises a sealing base, the sealing base comprises a bottom plate and a partition plate, a through hole penetrating through the bottom plate is formed in the bottom plate, the partition plate is arranged on one side of the bottom plate in a protruding mode, the bottom plate is matched with the bottom surface, the through hole is communicated with the annular space of the sealing ring, the side plate is detachably arranged on the partition plate to fix the sealing base, and the annular space is a hollow area surrounded by the sealing ring.

The side plate is indirectly matched with the outer surface through the partition plate, the sealing base further comprises a side frame, the side frame and the partition plate are arranged on the same side of the bottom plate at intervals, the side frame is arranged on the periphery of the partition plate in a surrounding mode, and the surface of the partition plate, facing the side frame, is matched with the surface, deviating from the plug body, of the side plate.

Wherein, the surface of baffle towards the side frame with the bottom plate's contained angle is equal to or greater than 90 degrees.

The included angle between the surface of the side plate facing the plug body and the cover body is equal to or larger than the included angle between the surface of the partition plate facing the side frame and the bottom plate.

The bottom plate is provided with an accommodating groove, the accommodating groove is communicated with the through hole of the sealing ring, and the plug body penetrates through the sealing ring to extend into the accommodating groove and is matched with the bottom surface of the accommodating groove.

The sealing base comprises a first sub-base and a second sub-base, the first sub-base comprises a first sub-base plate and a first sub-partition plate, the second sub-base comprises a second sub-base plate and a second sub-partition plate, the first sub-base and the second sub-base are detachably connected, so that the first sub-base plate and the second sub-base plate form the base plate, and the first sub-partition plate and the second sub-partition plate form the partition plate.

The sealing device comprises a cover body, a plug body and a sealing cover, wherein the sealing cover is provided with an accommodating hole penetrating through the cover body and the plug body, the accommodating hole comprises an air outlet communicated with the through hole and an air inlet arranged opposite to the air outlet, and the sealing device further comprises a valve assembly used for controlling the communication state between the air outlet and the air inlet.

The valve assembly comprises a one-way valve, and the one-way valve is arranged in the accommodating hole and used for limiting gas to flow along the direction from the gas outlet to the gas inlet.

Wherein the valve assembly comprises a control valve for controlling the flow of gas between the gas inlet and the gas outlet.

Wherein, the cock body passes through sealing washer sealing fit with interior surface.

Wherein, the contained angle between the lid is equal to or is greater than 90 degrees with the surface that the cock body faced the curb plate.

Wherein, the lid is equipped with the handle on deviating from the surface of cock body.

The sealing device further comprises a locking cover, and the locking cover is detachably sleeved on the peripheral surface of the sealing cover.

This application during sealing device seals plastic bag's sack, the sack of plastic bag passes behind the sealing ring, passes reverse cladding behind the part expansion of sealing ring the sealing ring will again the cock body of sealed lid stretches into in the sealing ring with the internal surface cooperation, the lid with the sealed cooperation of top surface, the curb plate with surface direct or indirect cooperation is in order with sealed lid is fixed in on the sealing ring, realize the sealed to the plastic bag sack, because the lid with the sealed cooperation of top surface has blockked the flow of gas and liquid, makes plastic bag and external environment completely isolated, and article in the plastic bag can't drop or leak and spill from the sack, have improved the sealed effect of plastic bag.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a sealing device according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a portion of the seal ring of the sealing device of FIG. 1;

FIG. 3 is a cross-sectional view of a sealing cap of the sealing device of FIG. 1;

FIG. 4 is a schematic structural diagram of a second sealing device provided in an embodiment of the present application;

FIG. 5 is a partial schematic view of a sealing base of the sealing device shown in FIG. 4;

FIG. 6 is a schematic cross-sectional view of the sealing device of FIG. 4 in another embodiment of the bottom plate of the sealing base;

FIG. 7 is a schematic cross-sectional view of the sealing device of FIG. 4 showing a third embodiment of the bottom plate of the sealing base;

FIG. 8 is a schematic cross-sectional view of a sealing device according to another embodiment of a partition in the sealing base of FIG. 4;

FIG. 9 is a schematic cross-sectional view of a side panel of the closure of FIG. 4 illustrating a sealing mechanism in a third embodiment;

FIG. 10 is a schematic cross-sectional view of a third sealing device provided in an embodiment of the present application;

FIG. 11 is an exploded view of a fourth sealing device according to an embodiment of the present disclosure;

FIG. 12 is an exploded view of the sealing base of the sealing device of FIG. 11;

FIG. 13 is a schematic view of a step of using the sealing device of FIG. 11;

FIG. 14 is a schematic cross-sectional view of a fifth sealing device provided in an embodiment of the present application;

FIG. 15 is a schematic cross-sectional view of the sealing device of FIG. 14 in one mode of use;

FIG. 16 is a schematic cross-sectional view of a sixth sealing device provided in an embodiment of the present application;

fig. 17 is a schematic cross-sectional view of a seventh sealing device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic cross-sectional view of a sealing device 100 according to an embodiment of the present disclosure.

The sealing device 100 of the present embodiment can seal the mouth of the plastic bag to prevent air and liquid from flowing between the plastic bag and the external environment. The plastic bag can be a conventional plastic bag or a plastic container formed by enclosing a plastic film.

The sealing device 100 comprises a sealing ring 10 and a sealing sleeve 20. The seal ring 10 includes an inner surface 101, a top surface 102, and an outer surface 103 connected in series. The sealing sleeve 20 comprises a sealing cover 21, the sealing cover 21 comprises a cover body 22, a plug body 23 and a side plate 24, the plug body 23 and the side plate 24 are convexly arranged on the same side of the cover body 22, the side plate 24 is arranged on the periphery of the plug body 23 in a surrounding mode, the plug body 23 extends into the sealing ring 10 to be matched with the inner surface 101, the cover body 22 is in sealing fit with the top surface 102, and the side plate 24 is directly matched with the outer surface 103 to fix the sealing sleeve 20.

Referring to fig. 2, fig. 2 is a schematic structural diagram of the seal ring 10 of the sealing device 100 shown in fig. 1.

In this embodiment, the sealing ring 10 has a circular ring structure. The hollow area surrounded by the sealing ring 10 is an annular space 11, that is, the inner surface 101 of the sealing ring 10 surrounds the annular space 11 forming the sealing ring 10, and the plug body 23 extends into the annular space 11 to be matched with the inner surface 101. The outer surface 103 is opposite to the inner surface 101, and is a surface of the sealing ring 10 departing from the annular space 11, that is, an outer peripheral surface of the sealing ring 10, and a first clamping groove 1031 is arranged on the outer surface 103. Top surface 102 is coupled between inner surface 101 and outer surface 103, and top surface 102 is in sealing engagement with cover 22. Wherein seal ring 10 further includes a bottom surface 104 coupled between inner surface 101 and outer surface 103, bottom surface 104 being disposed opposite top surface 102. It should be noted that, in other embodiments, the sealing ring may also have a square or special-shaped ring structure, and the shape of the sealing ring is not specifically limited in this application.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the sealing cover 21 of the sealing device 100 shown in fig. 1.

In this embodiment, the sealing sleeve 20 is a sealing cover 21. The sealing cover 21 is composed of a cover body 22, a plug body 23 and a side plate 24. In this embodiment, the cover 22, the plug 23, and the side plate 24 are integrally formed, so as to omit the assembly process among the cover 22, the plug 23, and the side plate 24, reduce the manufacturing cost of the sealing cover 21, and improve the compactness of the sealing cover 21. In other embodiments, the cover, the plug, and the side plate may be an integrated structure formed by assembling, and the present application is not limited thereto.

The cover 22 has a circular plate-like structure. The cover 22 includes a sealing surface 221 and an appearance surface 222. The sealing surface 221 is the surface of the cover 22 facing the seal ring 10. A sealing gasket 223 is arranged on the sealing surface 221 of the cover plate 22, and the cover plate 22 is in sealing fit with the top surface 102 through the sealing gasket 223. Specifically, the sealing gasket 223 is coupled between the plug body 23 and the side plate 24 and matches the size of the top surface 102. In the process of fixing the sealing cover 21, after the cover 22 moves towards the sealing ring 10 until the sealing gasket 223 contacts the top surface 102, the cover 22 moves continuously to press the sealing gasket 223 to deform the sealing gasket 223, so that the sealing gasket 223 is clamped between the sealing surface 221 of the cover 22 and the top surface 102, at this time, the sealing gasket 223 can fill the gap between the sealing surface 221 and the top surface 102, and the flow of gas and liquid between the sealing surface 221 and the top surface 102 is blocked, thereby improving the sealing effect between the cover 22 and the sealing ring 10. The design surface 222 is arranged opposite the sealing surface 221, the design surface 222 being the surface of the cover 22 facing away from the sealing ring 10. The outer surface 222 is provided with a handle 224. In this embodiment, the handle 224 is a block-shaped structure protruding from the outer surface 222. In the process of fixing the sealing cover 21, the handle 224 may be held by hand to operate the sealing cover 21. In other embodiments, the handle may be in other structures for holding by hand, and the present application is not limited to this.

The plug body 23 is provided to protrude from the middle region of the seal surface 221 and extends in the direction of the seal surface 221 along the outer surface 222. Specifically, the plug body 23 is a structure matched with the size of the annular space 11 of the sealing ring 10. The radial dimension of the plug 23 is slightly smaller than or equal to the radial dimension of the annular space 11 in the sealing ring 10, so that the plug 23 can extend into the annular space 11 to engage with the inner surface 101. In this embodiment, the plug 23 is a solid structure. In other embodiments, the plug body may also be a hollow structure, which is not specifically limited in this application.

Wherein the plug body 23 comprises a free end 23a facing away from the cover body 22. In the direction from the outer surface 222 to the sealing surface 221, i.e. in the extension direction of the plug body 23, the radial dimension of the free end 23a is gradually reduced so that the plug body 23 protrudes into the annular space 11 of the sealing ring 10. It should be noted that the plug body may also be a cylindrical structure, or the plug body may also be a truncated cone-shaped structure with a gradually decreasing radial dimension along the extending direction of the plug body, which is not specifically limited in this application.

Furthermore, a sealing ring 232 is sleeved on the outer peripheral surface 231 of the plug body 23, and the plug body 23 extends into the annular space 11 and is in sealing fit with the inner surface 101 through the sealing ring 232. In the process of fixing the sealing cover 21, when the plug body 23 moves towards the sealing ring 10 and extends into the annular space 11, the plug body 23 presses the sealing ring 232 to deform the sealing ring 232, so that the sealing ring 232 is clamped between the outer circumferential surface 231 and the inner surface 101 of the plug body 23, at this time, the sealing ring 232 can fill the gap between the outer circumferential surface 231 and the inner surface 101, gas and liquid are blocked from flowing between the outer circumferential surface 231 and the inner surface 101, and the sealing effect between the plug body 23 and the sealing ring 10 is improved. In this embodiment, the sealing ring 232 and the sealing gasket 223 are silica gel gaskets integrally formed by silica gel, which not only can increase the sealing effect of the sealing device 100, but also can improve the structural stability of the sealing device 100. It should be noted that, in other embodiments, the sealing gasket and the sealing ring may also be integrally formed with the sealing cover to further improve the structural stability of the sealing device, and the application is not limited thereto.

The side plate 24 is provided at the edge of the sealing surface 221 and is disposed around the periphery of the lid body 22. The side plate 24 includes oppositely disposed inner and outer abutment surfaces 241, 242. The inner contact surface 241 is a surface of the side plate 24 facing the plug 23, a hook 243 is protruded from the inner contact surface 241, the hook 243 is clamped in the first clamping groove 1031 of the sealing ring 10, and the side plate 24 and the outer surface 103 are directly engaged to fix the sealing cover 21 on the sealing ring 10. In this embodiment, the inscribed surface 241 is perpendicular to the sealing surface 221. It should be noted that, in other embodiments, the inner contact surface may not be perpendicular to the sealing surface, but may include an angle greater than 90 degrees with respect to the sealing surface, that is, the thickness of the side plate gradually decreases in a direction from the outer surface to the sealing surface, and in this structure, the inner contact surface of the side plate contacts the outer surface of the sealing ring, so that the side plate can be abutted against the sealing ring, and generates pressure on the sealing ring to press the sealing ring, thereby improving the sealing performance of the sealing device.

When the sealing device 100 provided by this embodiment is used to seal a plastic bag, an article to be sealed is placed in the plastic bag, the mouth of the plastic bag passes through the annular space 11 of the sealing ring 10, the part of the plastic bag passing through the annular space 11 is unfolded and then turned over, i.e. laid in the opposite direction, so that the sealing ring 10 is wrapped in the plastic bag, then the handle 224 on the cover 22 is held by hand to cover the sealing cover 21 on the sealing ring 10, at this time, the cover 22 moves toward the sealing ring 10 to press the sealing gasket 223 on the sealing surface 221, and at the same time, the plug 23 extends downward into the annular space 11 of the sealing ring 10 to press the sealing ring 232 on the outer peripheral surface 231 until the hook 243 is clamped in the first clamping groove 1031 of the sealing ring 10, so as to lock and fix the sealing cover 21 and the sealing ring 10, at this time, the sealing gasket 223 is pressed and deformed to clamp the plastic bag part between, and the sealing ring 232 is squeezed and deformed to clamp the plastic bag part between the sealing ring 10 and the plug body 23, so that the plug body 23 is in sealing fit with the inner surface 101, and the opening of the plastic bag is effectively sealed. At this time, air in the plastic bag and in the external environment cannot flow and exchange through the gap between the outer peripheral surface 231 of the stopper 23 and the inner surface 101 of the seal ring 10 and the gap between the sealing surface 221 of the lid body 22 and the top surface 102 of the seal ring 10, and the environment in the plastic bag is completely isolated from the external environment.

It should be noted that, when the article to be sealed and stored in the plastic bag is gas, liquid or the like that can pass through the hollow space 11 of the sealing ring 10, the mouth of the plastic bag can first pass through the hollow space 11 of the sealing ring 10, and after the mouth of the plastic bag passes through the hollow space 11, the mouth of the plastic bag is unfolded and then reversely laid on the plastic part near the mouth of the bag to cover the outer surface 103 of the sealing ring 10, so that the sealing ring 10 is wrapped in the plastic bag, at this time, the article to be sealed and stored can be placed in the plastic bag through the hollow space 11, and then the handle 224 on the sealing cover 21 is held by hand to clamp the hook 243 in the first clamping groove 1031 of the sealing ring 10, so as to realize the locking and fixing of the sealing cover 21 and the sealing.

It can be understood that, when the articles in the plastic bag need to be stored in vacuum, before the sealing cover 21 is covered on the sealing ring 10, the plastic bag can be evacuated through the annular space 11 to make the interior of the plastic bag approach to vacuum, and then the sealing cover 21 and the sealing ring 10 are locked and fixed to completely isolate the environment in the plastic bag from the external environment, so as to prolong the storage time of the articles in the plastic bag.

Referring to fig. 4, fig. 4 is a schematic cross-sectional view of a second sealing device 100 according to an embodiment of the present disclosure.

The sealing device 100 according to the embodiment of the present application differs from the sealing device 100 according to the previous embodiment in that the side plate 24 indirectly engages with the outer surface 103 to secure the sealing sleeve 20. Specifically, the sealing sleeve 20 further comprises a sealing base 25, the sealing base 25 comprises a bottom plate 26 and a partition plate 27, a through hole 261 penetrating through the bottom plate 26 is formed in the bottom plate 26, the partition plate 27 is arranged on one side of the bottom plate 26 in a protruding mode, the bottom plate 26 is matched with the bottom surface 104, the through hole 261 is communicated with the annular space 11 of the sealing ring 10, and the side plate 24 is detachably mounted on the partition plate 27 to fix the sealing base 25.

In this embodiment, the sealing boot 20 includes a sealing cover 21 and a sealing base 25. The sealing seat 25 is composed of a bottom plate 26 and a partition plate 27. Specifically, the bottom plate 26 and the partition plate 27 are integrally formed, so that an assembly process between the bottom plate 26 and the partition plate 27 is omitted, a manufacturing process of the sealing base 25 is simplified, and the structural compactness of the sealing base 25 is improved. In other embodiments, the bottom plate and the partition plate may be an integrated structure formed by assembling, and the present application is not limited thereto.

Referring to fig. 5, fig. 5 is a partial structural schematic view of the sealing base 25 of the sealing device 100 shown in fig. 4.

The bottom plate 26 has a square plate-like structure, the bottom plate 26 includes a first surface 262 and a second surface 263 disposed opposite to each other, and a through hole 261 extends through the first surface 262 and the second surface 263. Specifically, the first surface 262 is a surface of the bottom plate 26 facing the seal ring 10, and the through hole 261 is provided in a middle area of the first surface 262. The first surface 262 is fitted to the bottom surface 104, and the through hole 261 is located directly below the ring space 11, i.e., the axial line of the through hole 261 coincides with the axial line of the seal ring 10. In this embodiment, the through hole 261 has the same size as the hole diameter of the annular space 11. The plug body 23 penetrates through the annular space 11 and extends into the through hole 261, and is matched with the hole wall of the through hole 261 to clamp the plastic bag between the plug body 23 and the hole wall of the through hole 261, so that the path for gas and liquid circulation in the plastic bag and the external environment is increased, the difficulty of gas and liquid circulation is increased, and the sealing effect of the sealing device 100 is improved.

Referring to fig. 6, fig. 6 is a schematic cross-sectional view of the sealing device 100 of fig. 4, illustrating another embodiment of the bottom plate 26 of the sealing base 25.

The seal holder 25 of the present embodiment is different from the seal holder 25 of the above embodiments in that the hole diameter of the through hole 261 is smaller than the hole diameter of the annular space 11. The plug bottom surface 233 of the plug body 23 departing from the cover body 22 is matched with the first surface 262 to clamp the plastic bag between the plug bottom surface 233 and the first surface 262, so that the circulation path of gas and liquid between the plastic bag and the external environment is increased, the circulation difficulty of the gas and the liquid is increased, and the sealing effect of the sealing device 100 is improved.

Referring to fig. 7, fig. 7 is a schematic cross-sectional view of the sealing device 100 in a third embodiment of the bottom plate 26 of the sealing base 25 shown in fig. 4.

The sealing base 25 of this embodiment is different from the sealing base 25 of the other embodiment in that a receiving groove 264 is formed on the first surface 262, the receiving groove 264 communicates with the annular space 11 of the sealing ring 10, and the plug 23 penetrates through the sealing ring 10 and extends into the receiving groove 264. The bottom surface 233 of the plug 23 is matched with the bottom surface 265 of the containing groove 264 to clamp the plastic bag between the bottom surface 233 of the plug and the bottom surface 265 of the groove, so as to increase the path for the circulation of gas and liquid between the plastic bag and the external environment, increase the difficulty of the circulation of gas and liquid, and improve the sealing effect of the sealing device 100. In this embodiment, the receiving groove 264 is disposed around the periphery of the through hole 261 and is communicated with the through hole 261. It should be noted that, in other embodiments, the accommodating groove may be disposed at an interval from the through hole, but is not communicated with the through hole, and this is not specifically limited in this application.

It will be appreciated that the sealing engagement between the plug body 23 and the receiving cavity 264 may be in any shape, such as curved, rectangular, serrated or other shapes that increase the contact area between the plug body 23 and the receiving cavity 264.

Referring to fig. 5, in the present embodiment, the partition 27 is a three-dimensional ring structure extending along the second surface 263 toward the first surface 262. The partition 27 is protruded from an edge region of the first surface 262 and disposed around the periphery of the through hole 261. Specifically, the partition 27 includes an outer attachment surface 271 and an inner attachment surface 272. The outer attaching surface 271 is the surface of the partition plate 27 departing from the through hole 261, and a second locking groove 273 is formed in the outer attaching surface 271. The inner attaching surface 272 and the outer attaching surface 271 are disposed opposite to each other, that is, the inner attaching surface 272 is a surface of the partition plate 27 facing the through hole 261, and the inner attaching surface 271 is engaged with the outer surface 103 of the seal ring 10. The hook 243 on the side plate 24 is retained in the second locking groove 273, so that the side plate 24 and the outer surface 103 indirectly cooperate to fix the sealing base 25 and the sealing cover 21. In this embodiment, the outer attaching surface 271 and the inner attaching surface 272 are both perpendicular to the bottom plate 26, that is, an included angle between the outer attaching surface 271 and the bottom plate 26 and an included angle between the inner attaching surface 272 and the bottom plate 26 are equal to 90 degrees, that is, an included angle between the outer attaching surface 271 and the first surface 262 is equal to 90 degrees.

The second engaging groove 273 is a through groove passing through the outer attaching surface 271 and the inner attaching surface 272. Specifically, the second engaging groove 273 is an arc-shaped sliding groove. The partition plate 27 is provided with a notch 274 communicating with the second engaging groove 273. The hook 243 on the side plate 24 enters the second slot 273 from the notch 274, and then the sealing cover 21 is rotated along the extending direction of the second slot 273 until the hook 243 of the side plate 24 is clamped at the bottom of the second slot 273, so that the side plate 24 is mounted on the partition 27, and at this time, the side plate 24 is abutted against the outer surface 103 of the sealing ring 10 through the partition 27, that is, indirectly matched with the outer surface 103 of the sealing ring 10, so that the sealing ring 10 is clamped between the partition 27 and the plug body 23, and the sealing sleeve 20 is fixed.

Referring to fig. 8, fig. 8 is a cross-sectional view of a sealing device 100 according to another embodiment of the partition 27 in the sealing base 25 shown in fig. 4.

In the present embodiment, the difference from the above embodiment is that the included angle between the outer attaching surface 271 of the partition 27 and the bottom plate 26 is greater than 90 degrees, that is, the included angle between the outer attaching surface 271 and the first surface 262 is greater than 90 degrees, that is, along the extending direction of the partition 27, the thickness of the partition 27 gradually increases, so that the side plate 24 is inserted into the outer side of the partition 27 to realize the clamping and fixing with the partition 27.

Referring to fig. 9, fig. 9 is a sectional view of the sealing device 100 of the third embodiment of the side plate 24 of the sealing cover 21 shown in fig. 4.

In the present embodiment, the difference from the above embodiments is that an included angle between the inner connecting surface 241 of the side plate 24 and the cover 22 is greater than 90 degrees, that is, an included angle between the inner connecting surface 241 and the sealing surface 221 is greater than 90 degrees, that is, the thickness of the side plate 24 is gradually reduced along the extending direction of the side plate 24, so that the side plate 24 is inserted into the outer side of the partition plate 27 to realize the clamping and fixing with the partition plate 27. Specifically, the included angle between the inner contact surface 241 of the side plate 24 and the cover 22 is larger than the included angle between the outer contact surface 271 of the partition plate 27 and the bottom plate 26, that is, the outer contact surface 271 is steeper than the inner contact surface 241, so that the partition plate 27 is pressed tightly in the process that the side plate 24 is inserted into the outer side of the partition plate 27 to enable the hook 243 to be clamped in the second clamping groove 273, the gap between the side plate 24 and the partition plate 27 is reduced, the difficulty of flowing of gas and liquid between the side plate 24 and the partition plate 27 is increased, and the sealing performance between the side plate 24 and the partition plate 27 is improved.

When the sealing device 100 provided by this embodiment is used to seal the mouth of a plastic bag, an article to be sealed is placed in the plastic bag, the mouth of the plastic bag is inserted through the through hole 261 of the sealing base 25 and the annular space 11 of the sealing ring 10 in sequence, the portion of the plastic bag passing through the annular space 11 is unfolded and folded, the mouth of the plastic bag is reversely inserted through the through hole 261 of the sealing base 25, the sealing ring 10 is wrapped in the plastic bag, the sealing ring 10 is placed on the first surface 262 of the bottom plate 26, the outer surface 103 and the bottom surface 104 of the sealing ring 10 are respectively engaged with the inner engaging surface 272 of the partition 27 and the first surface 262 of the bottom plate 26, the handle 224 on the sealing cover 21 is held to insert the side plate 24 into the outer side of the partition 27, at this time, the hook 243 of the side plate 24 passes through the notch 274 and enters the second engaging groove 273, at this time, the cover 22 moves toward the, meanwhile, the plug body 23 extends downwards into the annular space 11 of the sealing ring 10, and then the sealing cover 21 is rotated until the hook 243 is clamped in the second clamping groove 273 of the partition plate 27 to fix the sealing sleeve 20, at this time, the sealing ring 10 is clamped between the cover 22 and the bottom plate 25, the plastic bag part between the sealing ring 10 and the cover 22 and the bottom plate 25 is clamped, and the sealing ring 10 is clamped between the plug body 23 and the partition plate 27, the plastic bag part between the sealing ring 10 and the plug body 23 and the partition plate 27 is clamped, so that the bag opening of the plastic bag is effectively sealed. At this time, air in the plastic bag and in the external environment cannot flow and exchange through the gap between the outer peripheral surface 231 of the plug body 23 and the inner surface 101 of the seal ring 10, the gap between the sealing surface 221 of the lid body 22 and the top surface 102 of the seal ring 10, the gap between the inner attaching surface 272 of the partition plate 27 and the outer surface 103 of the seal ring 10, and the gap between the first surface 262 of the bottom plate 26 and the bottom surface 104 of the seal ring 10, and the environment in the plastic bag is completely isolated from the external environment.

It should be noted that, when the articles to be sealed in the plastic bag are gas, liquid or other articles capable of passing through the annular space 11 of the sealing ring 10, the bag mouth of the plastic bag may first pass through the through hole 261 of the sealing base 25 and the annular space 11 of the sealing ring 10 in sequence, the portion of the plastic bag passing through the annular space 11 is unfolded and then laid in the opposite direction, and the bag mouth of the plastic bag is made to pass through the through hole 261 of the sealing base 25 in the opposite direction, so that the sealing ring 10 is wrapped in the plastic bag, then the sealing ring 10 is placed on the first surface 262 of the bottom plate 26, at this time, the articles to be sealed are placed in the plastic bag through the annular space 11 and the through hole 261, and then the handle 224 on the sealing cover 21 is held to rotatably clamp the hook 243 of the side plate 24 in the second clamping groove 273 of the.

It can be understood that, when the articles in the plastic bag need to be stored in vacuum, before the sealing cover 21 is covered on the sealing ring 10, the plastic bag can be pumped through the annular space 11 and the through hole 261 to make the interior of the plastic bag approach to vacuum, and then the sealing cover 21 and the sealing base 25 are locked and fixed to completely isolate the environment in the plastic bag from the external environment, so as to prolong the storage time of the articles in the plastic bag.

Referring to fig. 10, fig. 10 is a schematic cross-sectional view of a third sealing device 100 according to an embodiment of the present disclosure.

The sealing device 100 of the present embodiment differs from the second sealing device 100 described above in that the sealing base 25 further includes a side frame 28, the side frame 28 and the partition 27 are disposed at intervals on the same side of the bottom plate 26, the side frame 28 is disposed around the periphery of the partition 27, and the surface of the side frame 28 facing the partition 27 is engaged with the surface of the side plate 24 facing away from the plug body 23. Specifically, the side frame 28 is disposed at an edge of the first surface 262 and around a periphery of the bottom plate 25. Side frame 28 includes first side 281 and second side 282 that are oppositely disposed. The first side 281 is a surface of the side frame 28 facing the partition 27, and the first side 281 is engaged with the outer peripheral surface 242 of the side plate 24 to prevent outside air and liquid from flowing and exchanging through a gap between the first side 281 and the outer peripheral surface 242, thereby improving the sealing effect of the sealing device 100 on the plastic bag.

In this embodiment, the sealing base 25 is composed of a bottom plate 26, a partition plate 27, and a side frame 28. Specifically, the bottom plate 26, the partition plate 27 and the side frame 28 are integrally formed, so that an assembly process among the bottom plate, the partition plate and the side frame is omitted, the preparation process of the sealing base 25 is simplified, and the structural compactness of the sealing base 25 is improved. In other embodiments, the bottom plate, the partition plate, and the side frame may be an integrated structure formed by assembling, and the present application is not limited thereto.

Referring to fig. 11 and 12, fig. 11 is an exploded view of a fourth sealing device 100 according to an embodiment of the present disclosure, and fig. 12 is an exploded view of a sealing base 25 of the sealing device 100 shown in fig. 11.

The sealing device 100 according to the embodiment of the present application is different from the sealing device 100 according to the third embodiment in that the sealing base 25 of the sealing device 100 includes a first sub-base 25a and a second sub-base 25 b. The first sub-mount 25a includes a first sub-mount 26a and a first sub-partition 27a, and the second sub-mount 25b includes a second sub-mount 26b and a second sub-partition 27b, and the first sub-mount 25a and the second sub-mount 25b are detachably coupled together so that the first sub-mount 26a and the second sub-mount 26b form the mount 26, and the first sub-partition 27a and the second sub-partition 27b form the partition 27.

In this embodiment, the first sub mount 25a and the second sub mount 25b have the same shape. The first sub-mount 25a further includes a first side frame 28a, and the first side frame 28a includes a first end face 251a and a second end face 252 a. The included angle between the first end face 251a and the bottom plate 26 is smaller than 90 degrees, and a buckle 253a is convexly arranged on the first end face 251 a. The included angle between the second end surface 252a and the first sub-base plate 26a is greater than 90 degrees, and a fastening groove 254a is concavely formed on the second end surface 252 a. The second sub mount 25b further includes a second side frame 28b, and the second side frame 28b includes a third end surface 251b and a fourth end surface 252 b. The included angle between the third end face 251b and the second sub-base plate 26b is smaller than 90 degrees, and a buckle 253b is convexly arranged on the third end face 251 b. The included angle between the fourth end surface 252b and the second sub-base plate 26b is greater than 90 degrees, and a fastening groove 254b is concavely formed on the fourth end surface 252 b. Specifically, the latch 253a of the first sub-base 25a is retained in the latch groove 254b of the second sub-base 25a, and the latch 253b of the second sub-base 25a is retained in the latch groove 254a of the first sub-base 25a, so that the first sub-base 25a and the second sub-base 25b are joined together to form the sealing base 25. It is understood that, in other embodiments, the shape of the first sub-mount and the second sub-mount may be different, and the first sub-mount and the second sub-mount may be connected together by other types of connectors, which is not specifically limited in this application as long as the first sub-mount and the second sub-mount can be spliced to form the complete sealing mount.

Referring to fig. 13, fig. 13 is a schematic diagram illustrating a using step of the sealing device 100 shown in fig. 11.

When the sealing device 100 provided by the present embodiment is used to seal a plastic bag, an article to be sealed is placed in the plastic bag, the mouth of the plastic bag passes through the annular space 11 of the sealing ring 10, the portion of the plastic bag passing through the annular space 11 is unfolded and then turned over, so that the sealing ring 10 is wrapped in the plastic bag, then the first sub-base 25a and the second sub-base 25b are spliced below the sealing ring 10 to form the sealing base 25, so that the mouth of the plastic bag passes through the through hole 261 of the sealing base 25 in the opposite direction, the sealing ring 10 is placed on the first surface 262 of the bottom plate 26, so that the outer surface 103 and the bottom surface 104 of the sealing ring 10 are respectively matched with the inner attaching surface 272 of the partition 27 and the first surface 262 of the bottom plate 26, then the sealing base 25 is grasped by one hand, the plastic bag is pulled downwards by the other hand with force, so that the mouth portion of the plastic bag is, then, after the plastic bag is evacuated through the hollow space 11 and the through hole 261 to make the interior of the plastic bag become vacuum, the handle 224 on the sealing cover 21 is held to insert the side plate 24 between the partition 27 and the frame 28, the sealing cover 21 is rotated, at this time, the hook 243 of the side plate 24 passes through the notch 274 and enters the second slot 273, at this time, the cover body 22 moves towards the sealing ring 10 to continuously press the sealing gasket 223 on the sealing surface 221, the plug body 23 extends downward into the annular space 11 of the sealing ring 10, then the sealing cover 21 is rotated until the hook 243 is clamped in the second slot 273 of the partition 27 to fix the sealing sleeve 20, at this time, the sealing ring 10 is clamped between the cover body 22 and the bottom plate 25, the portion of the plastic bag between the sealing ring 10 and the cover body 22 and the bottom plate 25 is clamped, and the sealing ring 10 is clamped between the plug body 23 and the partition 27, the portion of the plastic bag between the sealing ring 10, the effective sealing of the bag opening of the plastic bag is realized. At this time, air in the plastic bag and in the external environment cannot flow and exchange through the gap between the outer peripheral surface 231 of the plug body 23 and the inner surface 101 of the seal ring 10, the gap between the sealing surface 221 of the lid body 22 and the top surface 102 of the seal ring 10, the gap between the inner attaching surface 272 of the partition plate 27 and the outer surface 103 of the seal ring 10, and the gap between the first surface 262 of the bottom plate 26 and the bottom surface 104 of the seal ring 10, and the environment in the plastic bag is completely isolated from the external environment.

It should be noted that, when the article to be sealed in the plastic bag is a gas, a liquid or the like that can pass through the hollow space 11 in the sealing ring 10, the bag mouth of the plastic bag can penetrate through the through hole 261 of the sealing base 25 and the annular space 11 of the sealing ring 10 in sequence, the part of the plastic bag penetrating through the annular space 11 is unfolded and then laid reversely, and the bag mouth of the plastic bag reversely passes through the through hole 261 of the sealing base 25, so that the sealing ring 10 is wrapped in the plastic bag, then the sealing ring 10 is placed on the first surface 262 of the bottom plate 26, at this time, the articles to be sealed and stored are placed in the plastic bag through the annular space 11 and the through hole 261, then the handle 224 on the sealing cover 21 is held by hand to rotatably clamp the hook 243 of the side plate 24 in the second clamping groove 273 of the partition plate 27, the sealing of the bag mouth of the plastic bag is realized, at this time, the environment in the bag is completely isolated from the external environment, and the storage time of the articles in the plastic bag.

It should be understood that when the vacuum preservation of the contents of the plastic bag is not required, the step of evacuating the plastic bag through the annular space 11 and the through hole 261 can be omitted before the sealing cover 21 is covered on the sealing ring 10, and the sealing cover 21 and the sealing base 25 are directly locked and fixed, and the specific using method can be adjusted adaptively according to the requirement, which is not limited in this application.

Referring to fig. 14, fig. 14 is a schematic cross-sectional view of a fifth sealing device 100 according to an embodiment of the present disclosure.

The sealing device 100 according to the embodiment of the present application is different from the sealing devices 100 according to the four embodiments, in that the sealing cover 21 is provided with a receiving hole 29 penetrating through the cover 22 and the plug 23, and the receiving hole 29 includes an air outlet 291 communicating with the through hole 261 of the bottom plate 26 and an air inlet 292 disposed opposite to the air outlet 291. Specifically, the housing hole 29 penetrates the lid body 22, the plug body 23, and the seal ring 10 in a direction perpendicular to the lid body 22. Further, the sealing device 100 further includes a valve assembly 30, and the valve assembly 30 is used for controlling the communication state between the air outlet 291 and the air inlet 292.

In this embodiment, the valve assembly 30 includes a control valve 31, and the control valve 31 is used to control the flow of gas between the gas inlet 292 and the gas outlet 291. After the sealing device 100 shown in the embodiment of the application seals the plastic bag opening, the communication state between the plastic bag and the external environment can be switched by controlling the switch of the control valve 30, so that the use flexibility of the sealing device 100 is improved.

When the control valve 31 on the receiving hole 29 is opened, the receiving hole 29 is the only passage connecting the inside of the plastic bag and the external environment, the gas in the external environment can flow to the gas outlet 291 along the gas inlet 292 and enter the plastic bag, the gas in the plastic bag can also flow to the gas inlet 292 along the gas outlet 291 and enter the external environment, at this time, the inside of the plastic bag can be vacuumized by the air pump through the receiving hole 29, and after the vacuumization is completed, the control valve 31 is closed, so that the inside environment of the plastic bag tends to be in a vacuum state. When it is necessary to inflate the plastic bag, the control valve 31 is opened, the inside of the plastic bag is inflated through the receiving hole 29 by the inflator, and when the gas in the plastic bag reaches the target required amount, the control valve 31 is closed to reseal the plastic bag.

It will be appreciated that when the items sealed in the plastic bag are liquids, it is difficult for liquids to enter or exit from other locations on the sealing device 100 because the mouth of the plastic bag is sealed by the sealing device 100. When the liquid in the plastic bag needs to be sucked, at this time, after the control valve 31 can be opened, the suction pipe 200 is inserted into the accommodating hole 29, and the suction pipe 200 sequentially penetrates through the accommodating hole 29 and the through hole 261 to extend into the plastic bag, so that the liquid in the plastic bag can be conveniently sucked out, and the situation of spilling is avoided, as shown in fig. 15; when the liquid in the plastic bag is not required to be sucked, the suction pipe 200 can be taken out, the control valve 31 is closed, the space in the plastic bag is isolated from the external environment again, and the plastic bag is sealed again.

Referring to fig. 16, fig. 16 is a schematic cross-sectional view of a sixth sealing device 100 according to an embodiment of the present disclosure.

The sealing device 100 of this embodiment is different from the sealing device 100 of the fifth embodiment in that the valve assembly 30 further includes a one-way valve 32, and the one-way valve 32 is disposed in the receiving hole 29 for limiting the gas flowing along the gas outlet 291 toward the gas inlet 292. Specifically, the check valve 32 is disposed on a side of the control valve 31 near the air outlet 291.

After the sealing device 100 provided by this embodiment is used to seal the plastic bag, in the process of evacuating the inside of the plastic bag through the receiving hole 29, the presence of the check valve 32 may prevent the gas in the external environment from entering the receiving hole 29 from the gas inlet 292 and flowing into the inside of the plastic bag from the gas outlet 291, and the gas in the inside of the plastic bag may rapidly enter the receiving hole 29 from the gas outlet 291 and enter the external environment from the gas inlet 292, so as to accelerate the evacuation rate of the plastic bag and achieve rapid evacuation of the plastic bag.

Referring to fig. 17, fig. 17 is a schematic cross-sectional view of a seventh sealing device 100 according to an embodiment of the present disclosure.

The sealing device 100 according to the embodiment of the present application is different from the sealing device 100 according to the five embodiments described above in that the sealing device 100 further includes a locking cover 40, and the locking cover 40 is detachably sleeved on the outer circumferential surface of the sealing cover 21.

In this embodiment, the side plate 24 of the seal cover 21 is in sealing engagement with the outer surface 103 of the seal ring 10. Specifically, the inner connecting surface 241 of the side plate 24 is provided with a sealing washer 244, and the outer connecting surface 242 of the side plate 24 is provided with an external thread. The locking cover 40 is detachably sleeved on the side plate 24 of the sealing cover 21. The locking cap 40 has an annular plate-shaped structure. The locking cover 40 comprises an inner annular surface 401, and an inner thread matched with the outer thread of the side plate 24 is arranged on the inner annular surface 401. In the process that the locking cover 40 and the side plate 24 are locked by the threads, the locking cover 40 presses the sealing washer 244 on the inner contact surface 241 to deform the sealing washer 244, so that the sealing washer 244 is clamped between the inner contact surface 241 of the side plate 24 and the outer surface 103 of the sealing ring 10, and at the moment, the sealing washer 244 can fill the gap between the inner contact surface 241 and the outer surface 103 to prevent gas and liquid from flowing between the inner contact surface 241 and the outer surface 103, thereby improving the sealing effect between the side plate 24 and the sealing ring 10. In this embodiment, the sealing ring 232, the sealing gasket 223 and the sealing washer 244 are silica gel gaskets integrally formed by silica gel, which not only can increase the sealing effect of the sealing device 100, but also can improve the structural stability of the sealing device 100. In other embodiments, the sealing ring, the sealing gasket and the sealing gasket may also be integrally formed with the sealing cover, so as to further improve the structural stability of the sealing device.

It can be understood that the difference between the application method of the sealing device 100 provided by the embodiment of the present application and the application method of the sealing device 100 provided by the above embodiment is only that, when the sealing device 100 provided by the embodiment of the present application is used, after the sealing cover 21 is covered on the sealing ring 10 and is pressed, the locking cover 40 is further required to lock the sealing cover 21 through the threads between the inner annular surface 401 and the outer annular surface 242, and during the locking process, the sealing washer 244 is pressed and deformed to clamp the portion of the plastic bag located between the side plate 24 and the sealing ring 10, so that the gas-liquid is more difficult to enter or exit the plastic bag, and a better sealing effect is achieved. At this time, air in the plastic bag and in the external environment cannot flow and exchange through the gap between the outer peripheral surface 231 of the stopper body 23 and the inner surface 101 of the seal ring 10, the gap between the sealing surface 221 of the lid body 22 and the top surface 102 of the seal ring 10, and the gap between the inner contact surface 241 of the side plate 24 and the outer surface 103 of the seal ring 10, and effective sealing of the mouth of the plastic bag is achieved.

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 detail may be made therein without departing from the spirit and scope of the invention.