CN110921090B

CN110921090B - Non-return bottle cap and non-return valve thereof

Info

Publication number: CN110921090B
Application number: CN201811098909.XA
Authority: CN
Inventors: 戴宏全
Original assignee: Taiwan Hon Chuan Enterprise Co Ltd
Current assignee: Taiwan Hon Chuan Enterprise Co Ltd
Priority date: 2018-09-20
Filing date: 2018-09-20
Publication date: 2022-03-29
Anticipated expiration: 2038-09-20
Also published as: CN110921090A

Abstract

A non-return bottle cap and a non-return valve thereof, the non-return bottle cap comprises: a body, in which a check valve and an injection piece are fixed; the check valve is provided with a valve plate and a plurality of injection holes, when the valve plate covers the bearing part of the body and seals the through hole of the body, the injection holes are sealed, and the check valve is in a sealed state; the valve plate can elastically deform and arch under the pressure from the through hole, the arched valve plate enables the through hole to be completely opened, the injection hole is smooth, and the check valve is in a release state; the body is combined with a threaded bottle opening of a plastic bottle through a threaded part, the check valve in a release state enables contents in the bottle to be released through the non-return bottle cap, and the check valve in a closed state ensures that the contents released from the plastic bottle cannot flow back into the bottle and also ensures that external air cannot enter the plastic bottle.

Description

Non-return bottle cap and non-return valve thereof

Technical Field

The present invention relates to bottle caps, and more particularly, to a bottle cap for preventing backflow.

Background

It is known that most of liquid, colloidal or thick substances such as beverages, seasonings, and medicines are filled in plastic bottles, the liquid substance can be released from the outlet of the bottle mouth or the bottle cap by directly pouring the container, and the colloidal or thick substance needs to squeeze the bottle body when pouring the container, and the substance is released from the outlet of the bottle mouth or the bottle cap by pressurizing the inside of the bottle. However, the non-disposable bottled materials are prone to have the materials remained in the bottle mouth or the bottle cap backflow into the bottle, or the external air enters the bottle more and more as the materials in the bottle are released, so that the materials in the bottle are prone to deteriorate. Preventing the backflow of the substance into the bottle is therefore a problem to be solved.

TWM414398 and TWM516015 disclose a bottle cap with a check silica gel valve, in which a rubber sheet is disposed in the bottle cap, a cross seam is disposed at the center of the rubber sheet, and the seam is sealed by the elastic restoring force of the rubber sheet. The bottle is squeezed to release its contents, and the contents are pressed against the film to elastically deform and expand the film to open the slit. The technology has the disadvantages that the sealing performance of the seam cannot be ensured, and substances remained in the bottle cap on the silica gel sheet can still flow back into the bottle through the seam; in addition, the caliber of the cross seam is too small, the content is not easy to pass through the cross seam, the bottle must be squeezed more vigorously, the problem that the content is ejected out of control from the cross seam is often caused, and the film of the cross seam is easy to deform due to excessive squeezing and even burst and cannot return to a sealing state.

Disclosure of Invention

The invention aims to provide a non-return bottle cap and a non-return valve thereof, which are used for solving the problems that the content released from the bottle does not flow back into the bottle, the air outside the bottle is prevented from entering the bottle in a large quantity, the content in the bottle can be released smoothly, the bottle content is prevented from being sprayed out of control when being released, the bottle cap and a bottle opening are kept clean, the content in the bottle is prevented from being left on the bottle cap in a large quantity after being released, and the like.

In order to achieve the purpose, the invention adopts the following technical scheme:

a check bottle cap comprising:

the body comprises an annular groove and a bearing part surrounded by the annular groove, the top surface of the bearing part is a concave arc surface, and the lowest position of the center of the concave arc surface is provided with a through hole;

the check valve comprises an annular base, wherein the inner ring edge of the annular base is provided with a valve plate which can elastically deform, the inner ring edge of the annular base is provided with a plurality of injection holes, and the circumference of the bottom surface of the valve plate is downwards convexly provided with a sealing convex ring; the check valve is tightly arranged in the annular groove by the annular base, the valve plate covers the concave cambered surface of the bearing part and seals the through hole, the sealing convex ring is tightly attached to the periphery of the concave cambered surface, and the injection hole is sealed;

an injection piece which is combined in the cover body and pressed on the outer ring edge of the annular base, and the injection piece is separated from the valve plate by a distance; the injection piece is provided with an injection nozzle;

a cover body which can be combined with the body or separated from the body; when the cover body is combined with the body, the cover body completely covers the injection piece and seals the injection nozzle.

Preferably, the valve plate is elastically deformed and arched upwards under the pressure from the through hole, the arched valve plate enables the through hole to be completely opened, the sealing convex ring is separated from the top surface of the bearing part, an annular gap is formed between the valve plate and the top surface of the bearing part, and the injection hole is smooth.

Preferably, the injection piece comprises a covering part, an annular side wall formed at the periphery of the bottom surface of the covering part, and the injection nozzle formed at the center of the top surface of the covering part and penetrating through the covering part; the injection piece is combined and fixed in the body, the periphery of the covering part is tightly contacted with the top surface of the body, and the annular side wall is pressed on the annular base of the check valve.

Preferably, the outer side surface of the annular side wall is provided with a first combining part which protrudes annularly, and one side wall of the annular groove opposite to the first combining part is provided with a second combining part which is recessed annularly; the first combining part is combined with the second combining part, and the injection piece is combined and fixed in the body.

Preferably, the cover is connected to the body by a flexible connecting sheet and can be lifted relative to the body.

Preferably, when the cover is closed on the body, a retaining ring at the periphery of the top surface of the body tightly abuts against the inner wall of the cover.

Preferably, the inner top surface of the cover body is provided with a sealing plug, and when the cover body is closed on the body, the sealing plug blocks the injection nozzle.

Preferably, the body is coupled to a threaded mouth of a plastic bottle with a threaded portion.

A check valve for a check closure, comprising: the valve comprises an annular base, wherein an inner ring edge of the annular base is provided with a valve plate which can elastically deform, the inner ring edge of the annular base is provided with a plurality of injection holes, and the circumference of the bottom surface of the valve plate is downwards provided with a sealing convex ring in a protruding mode.

The invention has the beneficial effects that:

the check valve ensures that the contents discharged from the plastic bottle do not flow back into the bottle, and the check valve also ensures that external air does not enter the plastic bottle.

The valve plate of the check valve is not provided with any cross or straight seam disclosed by the prior art, and is a complete valve plate, so that the valve plate can bear the pushing pressure of the content in the bottle, before the content in the bottle is completely released, the valve plate can bear numerous times of up-and-down elastic deformation, the valve plate can ensure the tightness of the check valve in a closed state, and the content in the bottle can be smoothly released outwards when the check valve is in a released state.

The bottle content is squeezed to the check valve through the through hole of the body, then squeezed to the space between the check valve and the injection piece through the injection hole at the periphery of the check valve, and finally injected outwards through the injection nozzle at the center of the injection piece, and the squeezing direction of the bottle content is firstly squeezed from the center to the peripheral direction, then squeezed from the peripheral direction to the center, and finally released from the center; the discharge path of the bottle contents is smooth and unobstructed but has adequate cushioning properties so that the bottle contents discharged from the nozzle are discharged in a gentle stream rather than a rapid, uncontrolled outward spray.

After the content of the bottle is released from the non-return bottle cap, the content remained in the non-return bottle cap is sealed in the space between the pouring piece and the non-return valve, and the non-return bottle cap is kept clean almost without any residue between the cover body and the body.

The non-return bottle cap seals the bottle mouth of the plastic bottle and completely seals the gap between the bottle cap and the bottle mouth, so that when the bottle content is released from the non-return bottle cap, no content leaks out from the space between the bottle cap and the bottle mouth, and no air permeates into the bottle from the space between the bottle cap and the bottle mouth.

Drawings

Fig. 1 is an exploded perspective view of a check bottle cap according to the present invention.

Fig. 2 is an appearance view of the non-return bottle cap uncapping combination of the invention.

Fig. 3 is a sectional view of the non-return bottle cap uncapping assembly of the present invention.

Fig. 4 is an external view showing a closed state of a check valve of the check bottle cap according to the present invention.

Fig. 5 is an external view showing a release state of a check valve of the check bottle cap according to the present invention.

Fig. 6 is a plan view of a check valve of the check bottle cap according to the present invention.

Fig. 7 is a sectional view VII-VII of fig. 5.

Fig. 8 is a sectional view VIII-VIII of fig. 5.

Fig. 9 is a cross-sectional view of a closed cap of the non-return bottle cap of the present invention.

Fig. 10 is a sectional view illustrating the opening of the check bottle cap according to the present invention.

Fig. 11 is a schematic cross-sectional view of a check closure releasing the contents of the bottle.

Reference numerals: 10: a body; 11: a top surface; 12: a retaining ring; 13: an annular groove; 14: a bearing part; 15: a concave arc surface; 16: a through hole; 20: a check valve; 21: an annular base; 22: a valve plate; 23: an injection hole is formed; 24: a sealing convex ring; 30: discharging the injection piece; 31: a laminating part; 32: an annular sidewall; 33: an outlet nozzle; 34: a first coupling portion; 35: a second joint part; 40: a cover body; 41: connecting sheets; 42: sealing; 50: a plastic bottle; 51: the screw thread bottleneck.

Detailed Description

As shown in fig. 1, 2 and 3, the check bottle cap of the present invention includes: a body 10, a cover 40 connected to the body 10, a check valve 20 disposed in the body 10, and an outlet 30 disposed in the body 10.

The body 10 is a plastic molded part, and includes a deep-groove-shaped annular groove 13 recessed from the top surface 11, and the body 10 further includes a supporting portion 14 surrounded by the annular groove 13, the top surface of the supporting portion 14 is a concave arc surface 15, and a through hole 16 is provided at the lowest position of the center of the concave arc surface 15.

The check valve 20 is a plastic molded part, and referring to fig. 4-8, the check valve 20 includes an annular base 21, an inner circumferential edge of the annular base 21 is connected to a valve plate 22 capable of elastic deformation, the annular base 21 is provided with a plurality of injection holes 23 near the inner circumferential edge, and a bottom circumferential edge of the valve plate 22 is provided with a sealing convex ring 24 protruding downward. The check valve 20 is tightly arranged in the annular groove 13 of the body 10 by the annular base 21, the valve plate 22 covers the top surface 11 of the bearing part 14 and seals the through hole 16, and the sealing convex ring 24 of the valve plate 22 is tightly attached to the periphery of the concave arc surface 15 of the bearing part 14.

The injection piece 30 is a plastic molding piece, and comprises a horizontal covering part 31, an annular side wall 32 formed on the periphery of the bottom surface of the covering part 31, and an injection nozzle 33 formed in the center of the top surface 11 of the covering part 31 and penetrating through the covering part 31; the outer side of the annular side wall 32 is provided with a first combining part 34 which protrudes annularly, and one side wall which forms the annular groove 13 is provided with a second combining part 35 which is recessed annularly; the injection member 30 is disposed in the body 10, the first coupling portion 34 and the second coupling portion 35 are coupled to each other, the peripheral edge of the overlapping portion 31 is in close contact with the top surface 11 of the body 10, and the annular sidewall 32 is pressed against the outer peripheral edge of the annular base 21 of the check valve 20.

The cover 40 is connected to the main body 10 by a flexible connecting sheet 41 and can be lifted relative to the main body 10; when the cover 40 is closed on the body 10, a retaining ring 12 at the periphery of the top 11 of the body 10 tightly contacts the inner wall of the cover 40, and the retaining ring 12 restricts the cover 40 from being arbitrarily bounced open; the inner top surface 11 of the cover 40 has a sealing plug 42 protruding in a tubular shape, and when the cover 40 is closed on the main body 10, the sealing plug 42 blocks the injection nozzle 33.

As shown in fig. 9, the body 10 is coupled to the screw mouth 51 of the plastic bottle 50 by the screw portion thereof, the support portion 14 and the check valve 20 of the body 10 seal the mouth of the plastic bottle 50, and the through hole 16 of the support portion 14 replaces the mouth of the plastic bottle 50; the cover body 40 is closed on the body 10, the valve plate 22 is downward arc-shaped and concavely clings to the concave arc surface 15 of the support part 14, the valve plate 22 seals the through hole 16 of the support part 14, the sealing convex ring 24 at the bottom of the valve plate 22 is tightly clings to the periphery of the concave arc surface 15 of the support part 14, the plurality of injection holes 23 of the check valve 20 are accordingly sealed, the valve plate 22 is in a sealed state, accordingly, the content of the plastic bottle 50 cannot be released from the check bottle cap, and even if the plastic bottle 50 is poured, the content of the bottle is still prevented from being released by the check bottle cap. Referring to fig. 3 again, when the cover 40 is opened, the valve plate 22 remains sealed, and external air cannot enter the plastic bottle 50.

As shown in fig. 10 and 11, if the contents of the plastic bottle 50 are to be discharged, the cover 40 is opened, the plastic bottle 50 is tilted upside down, and a pressing force is applied to the plastic bottle 50, the contents of the bottle are pressed through the through hole 16 of the valve plate 22, the valve plate 22 is pressed by the contents of the bottle or the air in the bottle to be elastically deformed and arched, the arched valve plate 22 completely opens the through hole 16, the sealing convex ring 24 is separated from the concave arc surface 15 of the support portion 14, an annular gap is formed between the valve plate 22 and the concave arc surface 15 of the support portion 14, the plurality of outlet holes 23 are therefore unblocked, the check valve 20 is in a discharge state, and accordingly, the contents passing through the through hole 16 are squeezed and injected between the check valve 20 and the outlet 30 through the annular gap and the plurality of outlet holes 23, and finally discharged outward through the outlet nozzle 33 of the outlet 30.

Referring to fig. 3 again, the plastic bottle 50 stops being squeezed, that is, the content of the bottle is released through the check cap, the cover 40 is closed, and when the sealing plug 42 blocks the pouring nozzle 33, a downward air pressure is generated in the pouring nozzle 33 to press the valve plate 22, which is elastically deformed and upwardly arched, downward to return to the aforementioned sealed state, so that air or the content remaining between the pouring member 30 and the check valve 20 does not flow back into the plastic bottle 50 through the check valve 20.

Claims

1. A non-return bottle cap, characterized by comprising:

the body comprises an annular groove and a bearing part surrounded by the annular groove, the top surface of the bearing part is a concave arc surface, and a through hole is arranged in the center of the bearing part;

the check valve comprises an annular base, wherein the inner ring edge of the annular base is provided with an elastically deformable valve plate, the annular base is provided with a plurality of injection holes, and the circumference of the bottom surface of the valve plate is downwards convexly provided with a sealing convex ring; the check valve is fixed in the annular groove by the annular base, the valve plate is arc-concave and covers the concave cambered surface of the bearing part and seals the through hole, the sealing convex ring is tightly attached to the periphery of the concave cambered surface, and the injection hole is sealed;

an injection piece combined in the body and positioned on the check valve, wherein the injection piece is separated from the valve plate by a distance; the injection piece is provided with an injection nozzle;

a cover body which can be combined with the body or separated from the body; when the cover body is combined with the body, the cover body completely shields the injection piece and seals the injection nozzle;

the valve plate is elastically deformed and arched upwards under the pressure from the through hole, the arched valve plate enables the through hole to be completely opened, the sealing convex ring is separated from the top surface of the bearing part, an annular gap is formed between the valve plate and the top surface of the bearing part, and the injection hole is smooth.

2. The check bottle cap of claim 1, wherein the injection member comprises an overlapping portion, an annular sidewall formed at a periphery of a bottom surface of the overlapping portion, and the injection nozzle formed at a center of a top surface of the overlapping portion and penetrating the overlapping portion; the injection piece is combined and fixed in the body, the periphery of the covering part is tightly contacted with the top surface of the body, and the annular side wall is pressed on the annular base of the check valve.

3. The non-return bottle cap of claim 2, wherein the outer side of the annular sidewall is provided with a first combining portion protruding annularly, and a sidewall of the annular groove opposite to the first combining portion is provided with a second combining portion recessed annularly; the first combining part and the second combining part are combined, and the injection piece is combined and fixed in the body.

4. The non-return bottle cap of claim 1, wherein the cover is connected to the body by a flexible connecting piece and can be lifted relative to the body.

5. The non-return bottle cap according to claim 1 or 3, wherein when the cover is closed on the body, a retaining ring at the periphery of the top surface of the body tightly abuts against the inner wall of the cover.

6. The non-return bottle cap according to claim 1 or 3, wherein the inner top surface of the cap body has a plug, and when the cap body is closed on the body, the plug blocks the nozzle.

7. The check bottle cap of claim 1, wherein the body is coupled to a threaded mouth of a plastic bottle with a threaded portion.