CN2774965Y

CN2774965Y - Anti-theft sealed bottle cap

Info

Publication number: CN2774965Y
Application number: CN 200520055844
Authority: CN
Inventors: 欧阳添根
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-14
Filing date: 2005-03-14
Publication date: 2006-04-26
Anticipated expiration: 2015-03-14

Abstract

The utility model discloses an anti-theft sealed bottle cap, which comprises a cap body (1), a skirt part (2) and a connecting rib (3) for connecting the cap body and the skirt part, wherein an inner sealed ring (11) is arranged in the closed end of the cap body. The ring part of the cap body is provided with screw threads (13) matched with the outer screw threads of a bottle opening. The utility model is characterized in that the inner wall of the skirt part is provided with anti-theft bulge blocks (22, 23) for clamping the skirt part on the bottle opening when the bottle cap is opened. The closed end of the cap body is also provided with a sealed ring (12) which can be tightly pressed on the outer wall of the bottle opening after the bottle cap is sealed. The anti-theft sealed bottle cap of the utility model has the advantages of theft prevention, good seal performance, easy cap closing and bottle opening and labor saving and can be used for plastic containers with various models and styles.

Description

A kind of anti-theft sealing bottle cap

Technical field

The utility model relates to a kind of bottle cap, more particularly, relates to a kind of plastic container leak free anti-theft sealing bottle cap that is used for.

Background technology

Drinks such as the beverage on the existing market, pure water generally are contained in the plastic bottle after processing such as sterilization, transport ground such as each dealer, market after sealing to again.In order to keep the quality of beverage or water, prevent that liquid is rotten or leak outside, must guarantee the sealing property of bottle and bottle cap.But in China, the conditions of transportation of various places differs, even if same also widely different inside the province, kinds of goods often jolt terriblely in the long-distance transport process, porter's improper operation when adding unloading, some bottles packaged when dispatching from the factory are reversed to opening direction to some extent at the vibration lower bottle cap, destroyed sealing property.

On the other hand, must not repeated usage in order to ensure plastic bottle, prevent that some from resaling, and safeguards the goodwill of manufacturer after being filled with water in the bottle of opening, have no exploits for illegal businessman, most of manufacturer all tends to adopt anti-theft feature is set on plastic bottle.Generally be that lid and skirt section are set, connecting with dowel that the easy fracture of dowel can make lid separate easily with the skirt section between the two on bottle cap.When uncork, the rotation shearing force that bottle cap produced makes the dowel fracture, and lid separates with the skirt section, and lid leaves bottle, and the skirt section is blocked by the outer bulge loop of bottleneck, hangs on the bottleneck.Even if screw on bottle cap again,, still can discern bottle and be opened because of dowel ruptures.The design plan in skirt section is a lot, but seen in the market bottle cap, the anti-theft effect that has is not ideal, and skirt section and bottleneck do not form the interference district, cause the skirt section to get loose from bottleneck.The good anti-theft effect that has but because the skirt section internal diameter is too small adds a cover when encapsulation resistance at bottle and increases, even make the bottle cap distortion.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of anti-theft and leak tightness good plastic bottle closure, to overcome the deficiencies in the prior art.

For solving the problems of the technologies described above, construct a kind of anti-theft sealing bottle cap, comprise lid, skirt section and connect the dowel in described lid and skirt section; Be provided with internal sealed ring in the closed end of described lid, the ring portion of lid is provided with the screw thread suitable with external thread of bottleneck, it is characterized in that: described skirt section inwall is provided with and makes the skirt section card stay the antitheft projection on the bottleneck when opening bottle cap, and the closed end of lid also is provided with the seal ring that can be pressed on the bottleneck outer wall after the bottle cap encapsulation.

Above-mentioned anti-theft sealing bottle cap is provided with sealed step on the lid Closed End between internal sealed ring and the seal ring.

Above-mentioned anti-theft sealing bottle cap, the outer wall of described internal sealed ring is provided with the flange that can be pressed on the bottleneck inwall.

Above-mentioned anti-theft sealing bottle cap, the contact surface height a of described flange and bottleneck inwall is in 0.65～0.75mm scope, and flange diameter equals internal diameter of the bottleneck B and adds thickness b, and b is in 0.3～0.8mm scope.

Above-mentioned anti-theft sealing bottle cap, described antitheft projection comprise a pair of big protruding block that is symmetrically distributed in the skirt section inwall and well-distributed small lugs between two big protruding blocks.

Above-mentioned anti-theft sealing bottle cap, described big protruding block are than the more close lid of small lugs, and the distance on big small lugs and top, skirt section differs 0.3～0.4mm.

Above-mentioned anti-theft sealing bottle cap, described big small lugs and the not good enough mutually 0.3mm of the distance on top, skirt section.

Above-mentioned anti-theft sealing bottle cap is provided with dowel on the correspondence position of the two ends of described big protruding block.

Above-mentioned anti-theft sealing bottle cap, the quantity of described small lugs are four.

Above-mentioned anti-theft sealing bottle cap, the cross section of described seal ring are triangle, rectangle or sub-circular.

The utility model compared with prior art has the following advantages and beneficial effect:

1. anti-theft sealing bottle cap of the present utility model is provided with a plurality of antitheft projections in the bottle cap skirt section, guaranteed the hardness requirement in skirt section, makes the skirt section can be stayed the neck of bottle by card, and encapsulation is convenient, uncork is laborsaving.

2. the multi-sealed design of bottle cap, internal sealed ring inserts the bottleneck inwall, internal sealed ring has also increased the seal ring that compresses the bottleneck outer wall outward, between internal sealed ring and seal ring, design sealed step, make it nature and form a clearance position, after the bottle cap encapsulation, the bottleneck end face is pressed on the step, even indivisible seepage water droplet is arranged, also only rest on clearance position, can not ooze out outside bottleneck end face even the seal ring.The effect of the triple seal of bottle cap makes bottle cap and bottleneck keep closed contact, in use can not leak gas or fluid seepage, has improved the leak tightness of bottle cap, has guaranteed the quality of built-in liquid.

3. design on the internal sealed ring, from ceiling structure system with the area of contact of bottleneck inwall, guaranteed the uncork moment of torsion effectively in OK range, people are convenient when uncork is drunk water.

Description of drawings

Fig. 1 is the structure cutaway view of the utility model anti-theft sealing bottle cap;

Fig. 2 is the A portion enlarged drawing of Fig. 1;

Fig. 3 is the structural representation of the internal sealed ring flange of anti-theft sealing bottle cap.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Shown in Fig. 1～2, anti-theft sealing bottle cap of the present utility model comprises lid 1 and skirt section 2, and lid 1 is connected as a single entity by dowel 3 with skirt section 2.Be provided with internal sealed ring 11 in the closed end of lid, when bottle cap encapsulated with the bottle that beverage or drinkable water are housed, internal sealed ring 11 extend into the bottleneck inwall, prevented that liquid from flowing out.Have the negative thread 13 suitable in the ring portion of lid, screw in the bottleneck of bottle with convenient bottle cap with the outside thread of bottleneck.What stress is: also be provided with the seal ring 12 of downward protrusion at the closed end of lid, make it tightly to be fitted in the bottleneck outer wall.On the lid closed end, the design sealed step 10 that internal sealed ring 11 and seal ring are 12, so, naturally form a clearance position between sealed step 10 and internal sealed ring 11, after the bottle cap encapsulation, the bottleneck end face is pressed on the sealed step 10, if indivisible water droplet seepage from internal sealed ring is arranged, also can rest on clearance position, reduce the possibility of oozing out the bottleneck end face, seal ring 12 has then further been stopped the phenomenon of leakage.So far, the effect of the triple seal of bottle cap makes bottle cap and bottleneck keep closed contact, has strengthened the sealing property of bottle cap, plays three safety effects.Wherein, the cross section of seal ring 12 can be triangle, rectangle or sub-circular.

Be provided with

antitheft projection

22,23 on 2 inwalls of the skirt section of anti-theft sealing bottle cap, antitheft projection is two skew back shapes, comprises wedge surface and following wedge surface.When encapsulation, mouth cylindrical part enters bottle cap inside along the following wedge surface of antitheft projection earlier, and after having encapsulated, last wedge surface can tightly withstand the lower edge of bottleneck lug boss.Owing to be provided with antitheft projection at the skirt section inwall, make it to form the interference district with bottleneck, the skirt section is not easy to get loose from bottleneck; And the assembling of skirt section internal diameter and bottleneck external diameter is suitable, has reduced the resistance that twists off dowel.

Antitheft projection comprises two big protruding blocks 22 and four small lugs 23, and big protruding block 22 is symmetrically distributed in the skirt section inwall, is to be evenly distributed with small lugs 23 respectively between big protruding block 22.Big small lugs is not on same horizon, and wherein big protruding block is than the more close lid of small lugs, 0.3～0.4mm at interval between the big small lugs.When outwarding winding bottle cap, the last wedge surface of big protruding block 22 produces thrust and friction force to the lower edge of bottleneck lug boss earlier, because big small lugs has range difference, thrust and friction force are suitably reduced, and the position of dowel is provided with the ground that also matches, establish a dowel on the correspondence position of the two ends of big protruding block 22 respectively, all the other dowels then are distributed in the small lugs 23 cooresponding scopes.

Referring to Fig. 3, after the dowel fracture, continue the rotation bottle cap and then can open bottle, need overcome the friction force of internal sealed ring and bottleneck inwall in this process, the utility model designs flange 14 on the outer wall of internal sealed ring 11, flange diameter equals internal diameter of the bottleneck B and adds thickness b, so internal sealed ring 11 is pressed on the bottleneck inwall and be controlled at highly on the flange circumference face of a with the contact surface of bottleneck inwall, guarantees that uncork moment is about 7～11 pounds.Through verification experimental verification, when the contact surface of flange and bottleneck inwall when 0.65～0.75mm, thickness b are in 0.3～0.8mm scope, can reach designing requirement, thus minimizing uncork moment of torsion, uncork is more laborsaving.

Claims

1. anti-theft sealing bottle cap comprises lid (1), skirt section (2) and connects the dowel (3) in described lid and skirt section; Be provided with internal sealed ring (11) in the closed end of described lid, the ring portion of lid is provided with the screw thread suitable with external thread of bottleneck (13), it is characterized in that: described skirt section inwall is provided with and makes the skirt section card stay the antitheft projection (22,23) on the bottleneck when opening bottle cap, and the closed end of lid also is provided with the seal ring (12) that can be pressed on the bottleneck outer wall after the bottle cap encapsulation.

2. anti-theft sealing bottle cap according to claim 1 is characterized in that: be provided with sealed step (10) on the lid Closed End between internal sealed ring (11) and the seal ring (12).

3. anti-theft sealing bottle cap according to claim 2 is characterized in that: the outer wall of described internal sealed ring (11) is provided with the flange (14) that can be pressed on the bottleneck inwall.

4. anti-theft sealing bottle cap according to claim 3 is characterized in that: the contact surface height a of described flange (14) and bottleneck inwall is in 0.65～0.75mm scope, and flange diameter equals internal diameter of the bottleneck B and adds thickness b, and b is in 0.3～0.8mm scope.

5. according to claim 1 or 2 or 3 or 4 described anti-theft sealing bottle caps, it is characterized in that: described antitheft projection comprises a pair of big protruding block (22) that is symmetrically distributed in the skirt section inwall and well-distributed small lugs (23) between two big protruding blocks.

6. anti-theft sealing bottle cap according to claim 5 is characterized in that: described big protruding block (22) is than the more close lid of small lugs (23), and the distance on big small lugs and top, skirt section differs 0.3～0.4mm.

7. anti-theft sealing bottle cap according to claim 6 is characterized in that: be provided with dowel (3) on the two ends correspondence position of described big protruding block (22).

8. anti-theft sealing bottle cap according to claim 7 is characterized in that: the quantity of described small lugs (23) is four.

9. anti-theft sealing bottle cap according to claim 8 is characterized in that: the cross section of described seal ring (12) is triangle, rectangle or sub-circular.