CN2521158Y

CN2521158Y - Bottle cap

Info

Publication number: CN2521158Y
Application number: CN 02230096
Authority: CN
Inventors: 陈育福
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-26
Filing date: 2002-03-26
Publication date: 2002-11-20
Anticipated expiration: 2012-03-26

Abstract

The utility model relates to a bottle cover comprising a bottle cover body, wherein one end of the bottle cover body is provided with a recess, and the bottle cove body is engaged with a bottle neck. The bottle cover body consists of a top cover and a side wall. The inner surface of the side wall of the bottle cover body is equipped with screws which are connected to the bottle neck via screws. A ring-shaped sealed device is arranged in the relative position of the inner surface of the bottle cover body to the bottle neck. The bottle cover body and the sealed device are in combination. The sealed device covers the bottle neck, and contacts at least three loop lines of the bottle disposed in the bottle neck, in the external of the bottle neck and at the top portion of the bottle neck. The utility model resolves the problems that one loop line is used to contact and seal an ordinary bottle cover and the leakage is led by the inaccuracy of the thickness of the bottle neck and the fabrication inaccuracy of the sealing structure. The utility model is capable of guaranteeing rather sound sealing effect between the bottle cover and the bottle neck, and being adaptable for the sealing of bottles with greatly different thickness of the bottle neck.

Description

A kind of bottle cap

Technical field

The utility model relates to the bottle cap that a kind of bottle cap, particularly top have sealing arrangement.Belong to packaging field.

Background technology

Disclosed various bottle caps in the prior art are the cylindrical of one one end opening or truncated cone-shaped bottle cap body substantially, comprise that top cover, sidewall reach and sidewall passes through dowel bonded assembly anti-theft ring; The inwall of cylindrical side wall is provided with and external thread of bottleneck bonded assembly negative thread, and the outer setting of sidewall has the 120-140 bar fine rule strip projection of sliding hand when preventing to open bottle cap, and at least 9 of the quantity of dowel are relatively taken material; The bottle cap of this structure generally only has a dot encapsulation, and its leak tightness is not good enough, leaks easily behind the packing bottle.Referring to Fig. 1, what show among the figure is the bottle cap of prior art, be provided with screw thread 5 on the bottle cap body on bottle 2, anti-theft ring 22, have an interior blocking 24 in its top cover, a dot encapsulation between the internal diameter of only outer wall of interior blocking 24 and bottleneck is because manufacturing errors, in case when interior blocking 24 outside face cylindricities reach and the right alignment of bottleneck can not meet the demands, problem poorly sealed, that leak will occur.

In order to improve said structure, improve sealing property, people have carried out various improvement, as:

A kind of leak free plastic bottle closure that is used for is disclosed among the ZL88206125, especially for the splendid attire drinks and the sealing of volatile matter is arranged.Have fastening and the bottleneck hermetically-sealed construction, the inner core that inserts in the bottleneck is arranged, it is characterized in that the periphery of inner core has at least one straw hat edge.It can avoid the poorly sealed disadvantage of general plastic bottle closure, can keep the stable sealing property of longer-term.Productive costs and conventional bottle cap are suitable.

A kind of seal anti-counterfeiting bottle cap is disclosed among the ZL97237507.4, it has an interior blocking on the top cover of bottle cap body, the negative thread of bottle cap body is three to advance a thread, and the bottom of bottle cap body is connected with anti-theft ring, and the structure design of anti-theft ring makes this bottle cap have the secondary seal effect.

ZL98810702.3 bottle closure with security seal, it is specially adapted to be contained in the bottle of quality drinks, it comprise one be fixed to bottle bottleneck topple over assembly and removably with topple over the retainer that assembly engages, one outer tubular lid, it is assembled to retainer so that cover retainer and topple over assembly; Lid be fixed on the retainer and also the sealing by a cracky be fixed to and topple on the assembly.For a kind of bottle closure that can economicly make and be difficult to forge is provided, cover in its underpart vertically and circumferentially lid to be fixed to and topple on the assembly, and the middle band of a cracky is set between described top of covering and described bottom, and itself and two described upper and lowers covering are made integral body.

Though the said structure design can improve the sealing property of bottle cap, still the people is satisfied in addition for sealing effectiveness, and shortcoming fundamentally solves the sealing problem between bottle cap and bottle.

Summary of the invention

It is a kind of in axial section that the purpose of this utility model is to provide, and the bottle cap of at least three dot encapsulations between bottle cap and bottleneck has preferable sealing effectiveness; Can overcome owing to bottleneck thickness Mismachining tolerance bigger cause the problem of leaking, be applicable to a kind of bottle cap of the easily demoulding after bottleneck sealed package that the bottleneck difference in thickness is bigger and the injection moulding, comparison saving in material.

The purpose of this utility model is by being provided with sealing arrangement and reducing the axial projections thick lines number of lateral wall and the design of dowel number realizes in the top cover of bottle cap.

For achieving the above object, the technical solution adopted in the utility model is: a kind of bottle cap, have an end opening and with the suitable bottle cap body of bottleneck, this bottle cap body comprises a top cover and sidewall, its inside surface of side wall is provided with the screw thread that connects with whorl of bottleneck; In the inside face and the corresponding position of bottleneck of bottle cap body, be provided with integrated with bottle cap body, bottleneck coated wherein and with inside and outside, the annular seal that 3 at top contacts of bottleneck.

Described annular seal have two concentric, ring-type with bottle cap body, by the internal projecting ring that stretches out vertically and the outer bulge loop of the inside face of the top cover of bottle cap body, form the groove that is used to hold bottle mouth wall of a ring-type between described internal projecting ring and the outer bulge loop; Described groove madial wall, be the internal diameter of the outside face loop wire diameter more at least of described internal projecting ring greater than bottleneck; Described groove lateral wall, be that the inside face of described outer bulge loop has the external diameter of the loop wire diameter of any less than bottleneck at least; The radius of curvature of described bottom portion of groove is greater than the radius of curvature at described bottle mouth wall top.

Described annular seal comprises that one that axially stretched out by top cover, that radially inwardly stretched out by sidewall with the internal projecting ring of the coaxial ring-type of bottle cap body, one and the outer bulge loop of the ring-type that bottle cap body is coaxial and one are between inside and outside bulge loop, with the bottleneck apical position suitable, with the axial projection of the concentric ring-type of bottle cap body, the outside of described internal projecting ring is provided with the radial protrusion ring of ring-type, and the gap between the radial protrusion ring of this ring-type and the described outer bulge loop is less than the thickness of bottle mouth wall.

The inside face of described outer bulge loop is the gradually little and outwards outstanding curved annular of its diameter, and the inside face of the curved annular of described outer bulge loop has the external diameter of the loop wire diameter of any less than bottleneck at least; The outside face of described internal projecting ring is the gradually big and outwards outstanding curved annular of its diameter, and the curved annular outside face of described internal projecting ring loop wire diameter more at least is greater than the internal diameter of bottleneck; The cross sectional shape of the groove that forms between described internal projecting ring and the outer bulge loop is roughly the reverse U shape that opening slightly expands outwardly or is recessed quadratic curve shape.

The lower surface of described axial bulge loop is the ring-type that axial section is " people " font or inverted v-shaped.

The lower end of described sidewall is connected with the sidewall anti-theft ring by dowel.

The quantity of the dowel that described sidewall is linked to each other with anti-theft ring is 7-9.

The outside face of described sidewall has axial thick lines projection; Axially the bar number of thick lines projection is the 70-80 bar.

The screw thread with the whorl of bottleneck connection of being located at described side wall inner surfaces is three three sections equal helix angle screw threads of constant pitch.

A kind of bottle cap of the present utility model, its advantage is: be provided with bottle cap body integrated, bottleneck coated wherein and with bottleneck in, outward, the annular seal of 3 the contacts in top, in axial section, because of being located at the internal projecting ring of bottle cap body inner bottom part, the minimum spacing of evagination interannular is less than the thickness of bottleneck, internal projecting ring, in outer bulge loop and the bottleneck, respectively have some contact and sealing outward at least, the bottleneck top has at least any to contact and seal with the bottom portion of groove of annular seal or with axial projection, like this, can guarantee at least 3 dot encapsulations between bottle cap and the bottleneck, fundamentally solve sealing problem, and be applicable to the bottle packing that the bottleneck difference in thickness is bigger; And then screw thread adopts three equidistant three sections equal helix angle screw threads, can make the open and close between bottle cap and bottle easier; Owing to reduced the axial projections thick lines number and the dowel number of lateral wall, compare saving in material again.

Description of drawings

Fig. 1 is the bottle cap of prior art;

Fig. 2 is the front view of the embodiment 1 of a kind of bottle cap of the present utility model;

Fig. 3 is that the A-A of Fig. 2 is to section and local enlarged diagram;

Fig. 4 is that the A-A of Fig. 2 cooperates generalized section to bottle cap with the arc bottleneck;

Fig. 5 is that the bottle cap that the utlity model has triple screw cooperates generalized section with the arc bottleneck;

Fig. 6 looks and partial enlarged view for the vertical profile of another embodiment of bottle cap of the present utility model.Wherein: top cover 12 sidewalls 13 screw threads 5 annular seals 3

Groove 4 projections 6 internal projecting rings 8 outer bulge loops 9

Internal projecting ring 8 ' outer bulge loop 9 ' axial projection 10 radial protrusion rings 11

Dowel 15 anti-theft ring 22

The specific embodiment

Below in conjunction with embodiment a kind of bottle cap of the present utility model is described further.

Embodiment 1, referring to Fig. 2-Fig. 4, a kind of bottle cap of present embodiment, have an end opening and with the suitable bottle cap body of bottleneck, this bottle cap body comprises a top cover 12 and sidewall 13, the inside face of its sidewall 13 is provided with the screw thread 5 that connects with whorl of bottleneck; In the inside face and the corresponding position of bottleneck of bottle cap body, be provided with integrated with bottle cap body, bottleneck coated wherein and with inside and outside, the annular seal 3 that 3 at top contacts of bottleneck; Annular seal 3 have two concentric, ring-type with bottle cap body, by the internal projecting ring that stretches out vertically 8 and the outer bulge loop 9 of the inside face of the top cover 12 of bottle cap body, form the groove 4 that is used to hold bottle mouth wall of a ring-type between described internal projecting ring 8 and the outer bulge loop 9; The cross sectional shape of groove 4 is roughly the reverse U shape that opening slightly expands outwardly or is recessed quadratic curve shape, and its bottom is circular-arc.Described groove 4 madial walls, be the internal diameter of the outside face loop wire diameter more at least of described internal projecting ring 8 greater than bottleneck; Described groove 4 lateral walls, be that the inside face of described outer bulge loop 9 has the external diameter of the loop wire diameter of any less than bottleneck at least.The inner surface configuration of described outer bulge loop 9 is: to gradually little near the bottom of groove 4 and outwards outstanding curved annular, and its minimum diameter is less than the bottleneck outer diameter by end for its diameter, and its maximum gauge is greater than the bottleneck outer diameter; Being shaped as of the outside face of described internal projecting ring 8: its diameter refers to the curved annular that bottom portion of groove is gradually big and outwards outstanding by end, and its maximum gauge is greater than the diameter of described bottleneck inwall; The inside and outside wall of bottleneck is necessarily had a bit, and the outside face of its formed loop wire and described internal projecting ring 8, the inside face of outer bulge loop 9 contact and seal.The radius of curvature of groove 4 bottoms makes flat mouthful top have at least the loop wire of any to contact and seal with the surface of groove 4 bottoms greater than the radius of curvature at described bottle mouth wall top.Above-mentioned annular seal forms three sealing loop wires of three some contacts on the cross section at least; Can reduce widely like this because Mismachining tolerance causes the possibility of seal failure.

In the present embodiment, the lower end of sidewall 13 is connected with anti-theft ring 22 by dowel 15, and described connection sidewall 13 is 8 with the quantity of the dowel 15 of anti-theft ring 22, and the minimizing of dowel can reduce material, cost-cutting, and makes unlatching easier.

In the present embodiment, referring to Fig. 5, the screw thread 5 with the whorl of bottleneck connection of being located at described sidewall 13 inside faces is three three sections equal helix angle screw threads of constant pitch.

In the present embodiment, the outside face of described sidewall 13 has axial thick lines projection 6; Axially the bar number of thick lines projection 6 is 70, reduces the number of projection, makes projection become big, helps like this opening, and skidding takes place when preventing to open.

The advantage of a kind of bottle cap of present embodiment is, in axial section, internal projecting ring 8, outer bulge loop 9 have at least any to contact respectively with the inside and outside wall of bottleneck, and groove 4 has at least any to contact with the bottleneck top, and bottle cap has 3 preferable sealing effectivenesss that contact at least with bottleneck; Compare saving in material again.

Embodiment 2, referring to Fig. 1 and Fig. 6, showed a kind of bottle cap among the figure, have an end opening and with the suitable bottle cap body of bottleneck, this bottle cap body comprises a top cover 12 and sidewall 13, the inside face of its sidewall 13 is provided with the screw thread 5 that connects with whorl of bottleneck; In the inside face and the corresponding position of bottleneck of bottle cap body, be provided with integrated with bottle cap body, bottleneck coated wherein and with inside and outside, the annular seal 3 that 3 at top contacts of bottleneck.Be with a last embodiment difference: described annular seal 3 comprises that one is axially stretched out by top cover 12, internal projecting ring 8 ' with the coaxial ring-type of bottle cap body, one by sidewall 13 is that radially inwardly stretch out and the outer bulge loop 9 ' of the ring-type that bottle cap body is coaxial and one are positioned at, outer bulge loop 8 ', between 9 ', suitable with the bottleneck apical position, the axial projection 10 on the top cover 12 of being located at the concentric ring-type of bottle cap body, the outside of described internal projecting ring 8 ' is provided with the radial protrusion ring 11 of ring-type, gap between radial protrusion ring 11 and the described outer bulge loop 9 ' is less than the thickness of bottle mouth wall, like this inside and outside wall of bottleneck will with radial protrusion ring 11, outer bulge loop 9 ' contact and sealing; Owing to have at least a bit and contact and seal being located at axial projection 10 on the top cover 12 above the top of bottleneck with the bottleneck top, in the present embodiment, axial projection 10, for the shape of falling M, thereby the lower surface that constitutes axial projection 10 is inverted v-shaped or is called " people " font, two side all can contact and seal with the bottleneck top, and sealing effectiveness can be even more ideal.

In the present embodiment, to have the bar number of axial thick lines projection 6 be 80 to the lateral wall of described sidewall 13.

In the present embodiment, the lower end of sidewall 13 is connected with anti-theft ring 22 by dowel 15, and described connection sidewall 13 is 7 with the quantity of the dowel 15 of anti-theft ring 22, and the minimizing of dowel can reduce material, cost-cutting, and makes unlatching easier.

The outstanding advantage of present embodiment bottle cap is, radial protrusion ring 11 and outer bulge loop 9 ' have some contact seal with the inside and outside wall of bottleneck respectively, and in axial section, axial bulge loop 10 has contact at 2 with the bottleneck top, make bottle cap and bottleneck have at least contact at 4, have better sealing effectiveness.

Claims

1. bottle cap, have an end opening and with the suitable bottle cap body of bottleneck, this bottle cap body comprises top cover (12) and sidewall (13), the inside face of its sidewall (13) is provided with the screw thread (5) that connects with whorl of bottleneck; It is characterized in that: in the inside face and the corresponding position of bottleneck of bottle cap body, be provided with integrated with bottle cap body, bottleneck coated wherein and with inside and outside, the annular seal (3) that top 3 points (bar loop wire) contacts of bottleneck.

2. bottle cap according to claim 1, it is characterized in that: described annular seal (3) have two concentric, ring-type with bottle cap body, by internal projecting ring (8) and outer bulge loop (9) that the inside face of the top cover (12) of bottle cap body stretches out vertically, the bottom that is used to hold bottle mouth wall that forms a ring-type between described internal projecting ring (8) and the outer bulge loop (9) is circular-arc groove (4); Described groove (4) madial wall, be the internal diameter of the outside face loop wire diameter more at least of described internal projecting ring (8) greater than bottleneck; Described groove (4) lateral wall, be that the inside face of described outer bulge loop (9) has the external diameter of the loop wire diameter of any less than bottleneck at least; The radius of curvature of described groove (4) bottom circular arc is greater than the radius of curvature at described bottle mouth wall top.

3. bottle cap according to claim 1, it is characterized in that: described annular seal (3) comprises that one is axially stretched out by top cover (12), internal projecting ring (8 ') with the coaxial ring-type of bottle cap body, one that radially inwardly stretched out by sidewall (13) and the outer bulge loop (9 ') of the ring-type that bottle cap body is coaxial and one are positioned at, outer bulge loop (8 '), between (9 '), suitable with the bottleneck apical position, axial projection (10) with the concentric ring-type of bottle cap body, the outside of described internal projecting ring (8 ') is provided with the radial protrusion ring (11) of ring-type, and the radial protrusion ring (11) of this ring-type and the gap between the described outer bulge loop (9 ') are less than the thickness of bottle mouth wall.

4. bottle cap according to claim 2, it is characterized in that: the curved annular that the inside face of described outer bulge loop (9) is gradually little and outwards outstanding for its diameter, the inside face of the curved annular of described outer bulge loop (9) has the external diameter of the loop wire diameter of any less than bottleneck at least; The outside face of described internal projecting ring (8) is the gradually big and outwards outstanding curved annular of its diameter, and described internal projecting ring (8) curved annular outside face loop wire diameter more at least is greater than the internal diameter of bottleneck; The cross sectional shape of the groove (4) that forms between described internal projecting ring (8) and the outer bulge loop (9) is roughly the reverse U shape that opening slightly expands outwardly or is recessed quadratic curve shape.

5. bottle cap according to claim 3 is characterized in that: the lower surface of described axial bulge loop (10) is the ring-type that axial section is " people " font or inverted v-shaped.

6. according to each described bottle cap in the claim 1 to 5, it is characterized in that: the lower end of described sidewall (13) is connected with sidewall anti-theft ring (22) by dowel (15).

7. bottle cap according to claim 6 is characterized in that: the quantity of the dowel (15) that described sidewall (13) is linked to each other with anti-theft ring (22) is 7-9.

8. according to each described bottle cap in the claim 1 to 5, it is characterized in that: the outside face of described sidewall (13) has axial thick lines projection (6); Axially the bar number of thick lines projection (6) is the 70-80 bar.

9. bottle cap according to claim 7 is characterized in that: the outside face of described sidewall (13) has axial thick lines projection (6); Axially the bar number of thick lines projection (6) is the 70-80 bar.

10. according to claim 1 to 5 each described bottle cap wherein, it is characterized in that: the screw thread (5) that connects with whorl of bottleneck of being located at described sidewall (13) inside face is three three sections equal helix angle screw threads of constant pitch.

11. bottle cap according to claim 7 is characterized in that: the screw thread (5) with the whorl of bottleneck connection of being located at described sidewall (13) inside face is three three sections equal helix angle screw threads of constant pitch.