CN206142126U - Bottle lid bottleneck seal structure - Google Patents

Abstract

The utility model discloses a bottle lid bottleneck seal structure, including the liner, have the bottleneck of external screw thread and have the internal screw thread bottle lid, bottleneck and bottle lid spiro union, the liner is including inlaying the liner main part in the bottle lid, the bottleneck includes an elastic arm, the elastic arm includes first end, the liner clamp is located between bottle lid and the elastic arm, the first end butt of liner main part and elastic arm can play to seal acting on between bottle lid and bottleneck.

Description

A kind of bottle cap bottleneck seal structure

Technical field

This utility model is related to a kind of sealing structure, more particularly to a kind of bottle cap bottleneck seal structure.

Background technology

Plastic bottle closure of the existing use on extrusion blow bottle is divided into two kinds of monolithic bottle cap and biplate bottle cap, monolithic bottle on market Lid is interior plug sealing using interior plug sealing and top sealing, main seal, due to the restriction of of extrusion blow technique itself, the sealing of extrusion blow bottle Position has that size fluctuation is big, ovality, easily causes sealing leak and covers bad (such as askew lid) etc. Problem.Then using liner (main material is elastic rubbery body and foamed plastic) sealing, primary seal is top to biplate bottle cap Portion seals or outer side seal, and due to the restriction of liner moulding process, sealing structure is shorter so that bottle cap is opening the angle of very little Occur sealing leak problem when spending, exist and poured into the risk that foreign body is screwed back again after people's malice twist-off closure certain angle, It is difficult to ensure that safety.

Utility model content

In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of bottle cap bottleneck seal structure, Sealing function can be played between bottle cap and bottleneck.

The purpose of this utility model employs the following technical solutions realization：

A kind of bottle cap bottleneck seal structure, including liner, with externally threaded bottleneck and have female bottle cap, bottleneck It is spirally connected with bottle cap, liner includes the gasket body being embedded in bottle cap, bottleneck includes an elastic arm, and elastic arm includes first end, lining Pad is located between bottle cap and elastic arm, and gasket body is abutted with the first end of elastic arm.

Preferably, the liner also includes the annular protrusion protruded towards elastic arm by gasket body, the annular protrusion and bullet Property arm first end abut.

Preferably, elastic arm also includes the second end being connected with first end；The sidepiece of the gasket body is provided with side wall, should Side wall is abutted in the first direction with the second end of elastic arm, and gasket body is abutted in a second direction with first end, first direction with Second direction intersects.

Preferably, the elastic arm is integrally formed with bottleneck, and is stretched out by the upper end of bottleneck.

Preferably, elastic arm includes kink and sealing, and sealing has relative with first end and the second end respectively 3rd end, the two ends of kink are connected to the 3rd end of bottleneck upper end and sealing.

Preferably, kink Cheng “ Xi " shape, sealing is connected to form “ Xi with kink " shape.

Preferably, the liner is made up of elastomeric material.

Compared to existing technology, the beneficial effects of the utility model are：

Sealed using liner and elastic arm between bottle cap and bottleneck, the annular protrusion of liner and the first of elastic arm End abuts, and plays sealing function；The side wall of liner is connected with the second end of elastic arm, plays dual sealing functions；When bottle cap with When bottleneck is combined by being spirally connected, elastic arm is compressed and is deformed upon, the annular protrusion of liner and the first end of elastic arm Compress, the side wall of liner is tight with the second side pressure of elastic arm, and sealing effectiveness is more preferably；Bottle cap open during, elastic arm by Step returns to the original form, but still keeps a certain degree of elastic abutting state with liner until separating with bottleneck, i.e., in bottle Play a part of to postpone to seal in lid opening process to pour into the wind that foreign body again screws back bottle cap so as to effectively reduce someone's malice Danger, it is safer.

Description of the drawings

Fig. 1 is a kind of schematic diagram of bottle cap bottleneck seal structure of this utility model；

Fig. 2 is the enlarged drawing of encircled portion in Fig. 1；

Fig. 3 is sectional view when elastic arm is deformed upon in Fig. 2；

Fig. 4 is the sectional view of this utility model improved technology scheme；

Fig. 5 is sectional view when elastic arm is deformed upon in Fig. 4；

In figure：1st, bottle cap；2nd, bottleneck；3rd, liner；4th, elastic arm；5th, gasket body；6th, side wall；7th, first annular projection； 8th, first end；9th, the second end；10th, external screw thread；11st, female thread；12nd, the second annular protrusion；13rd, the 3rd end；14th, kink.

Specific embodiment

Below, with reference to accompanying drawing and specific embodiment, this utility model is described further：

As shown in Fig. 1～5, a kind of sealing structure for bottle cap 1 and bottleneck 2, including liner 3, with external screw thread 10 Bottleneck 2 and the bottle cap 1 with female thread 11, external screw thread 10 coordinates with female thread 11, i.e., bottleneck 2 is spirally connected with bottle cap 1；Bottleneck 2 is wrapped An elastic arm 4 is included, and elastic arm 4 is preferably and is integrally formed with bottleneck 2, and the upper end by bottleneck 2 is stretched out；Elastic arm 4 includes the One end 8；Liner 3 is made up of elastomeric material, is preferably made up of rubber, and liner 3 is located between bottle cap 1 and elastic arm 4；Lining Pad 3 includes the gasket body 5 being embedded in bottle cap 1, and gasket body 5 is abutted with the first end 8 of elastic arm 4, when bottle cap 1 and bottleneck 2 It is spirally connected when combining, gasket body 5 is pressed to bottle cap 1 first end 8 of elastic arm 4, so as to bottleneck 2 be sealed.

As shown in Figures 2 and 3, gasket body 5 includes first annular raised 7, and this is first annular raised 7 with elastic arm 4 First end 8 is abutted, and when bottle cap 1 and bottleneck 2 are spirally connected when combining, bottle cap 1 presses to elastic arm 4 by first annular raised the 7 of liner 3 First end 8, so as to bottleneck 2 be sealed；Preferably, gasket body 5 also includes the second annular protrusion 12, second annular protrusion 12 Positioned at first annular raised 7 periphery, when bottle cap 1 and bottleneck 2 are spirally connected when combining, bottle cap 1 is by first annular raised the 7 of liner 3 With the first end 8 that the second annular protrusion 12 presses to elastic arm 4 simultaneously, so as to by the dual-seal of bottleneck 2.

As shown in Figure 4 and Figure 5, as the improved technical scheme of this utility model, elastic arm 4 also includes connecting with first end 8 The second end 9 for connecing；The sidepiece of the gasket body 5 is provided with side wall 6, and the second end 9 of the side wall 6 and elastic arm 4 is in the first direction Abut, gasket body 5 is abutted in a second direction with first end 8, and first direction intersects with second direction, preferably vertically.Work as bottle Lid 1 and bottleneck 2 are spirally connected when combining, and gasket body 5 is pressed to bottle cap 1 first end 8 of elastic arm 4, now gasket body 5 and elasticity The first end 8 of arm 4 is compressed, and bottleneck 2 is sealed；Simultaneously elastic arm 4 is deformed upon by compression, and the second end 9 compresses with side wall 6, Dual-seal is carried out to bottleneck 2, therefore sealing effectiveness is splendid.

Preferably, elastic arm 4 includes kink 14 and sealing, sealing have respectively with the phase of 8 and second end of first end 9 To the 3rd end 13, the two ends of kink 14 are connected to the 3rd end 13 of the upper end of bottleneck 2 and sealing.

Preferably, the Cheng “ Xi of kink 14 " shape, sealing is connected to form “ Xi with kink 14 " shape.

It is essential that when bottle cap 1 seals bottleneck 2, elastic arm 4 is in compressive state；When user opens bottle cap 1 When, elastic arm 4 can progressively return to the original form, until bottle cap 1 is kept completely separate with bottleneck 2.Divide completely with bottleneck 2 in bottle cap 1 From before, the first end 8 of elastic arm 4 is still abutted with first annular raised 7 elasticity of liner 3, sealing function is played, while bullet Property arm 4 the second end 9 still abuts with the elasticity of side wall 6 of liner 3, performance dual sealing functions can effectively reduce someone's evil Meaning pours into the risk that foreign body again screws back bottle cap 1, safer.

It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of this utility model claim Within the scope of.

Claims (7)

1. a kind of bottle cap bottleneck seal structure, it is characterised in that：Including liner, with externally threaded bottleneck and have it is female Bottle cap, bottleneck is spirally connected with bottle cap, and liner includes the gasket body being embedded in bottle cap, and bottleneck includes an elastic arm, and elastic arm includes First end, padded splint is located between bottle cap and elastic arm, and gasket body is abutted with the first end of elastic arm.

2. a kind of bottle cap bottleneck seal structure according to claim 1, it is characterised in that：The liner is also included by liner The annular protrusion that main body is protruded towards elastic arm, the annular protrusion is abutted with the first end of elastic arm.

3. a kind of bottle cap bottleneck seal structure according to claim 2, it is characterised in that：Elastic arm also includes and first end Second end of connection；The sidepiece of the gasket body is provided with side wall, and the side wall is abutted in the first direction with the second end of elastic arm, Gasket body is abutted in a second direction with first end, and first direction intersects with second direction.

4. a kind of bottle cap bottleneck seal structure according to claim 1, it is characterised in that：The elastic arm and bottleneck one Molding, and stretched out by the upper end of bottleneck.

5. a kind of bottle cap bottleneck seal structure according to claim 4, it is characterised in that：Elastic arm includes kink and close Envelope portion, sealing has the 3rd relative with first end and the second end respectively end, and the two ends of kink are connected on bottleneck End and the 3rd end of sealing.

6. a kind of bottle cap bottleneck seal structure according to claim 5, it is characterised in that：Kink Cheng “ Xi " shape, sealing Portion is connected to form “ Xi with kink " shape.

7. a kind of bottle cap bottleneck seal structure according to claim 1, it is characterised in that：The liner is by elastomeric material system Into.