CN205633535U - Bottle cap - Google Patents

Abstract

The utility model discloses a bottle cap, include: the inner plug comprises an inner plug main body, a circular shoulder part and a convex neck part; the wine outlet is fixedly sleeved outside the convex neck part and is provided with external threads; the fixing sleeve is fixedly embedded outside the bottle mouth, and the upper end of the fixing sleeve is pressed on the convex ring; the outer cover is provided with an internal thread and an ejector rod which are matched with the external thread; the glass beads are arranged in the inner plug main body; the one-way valve is movably arranged in an inner cavity formed by the convex neck part and the wine outlet nozzle; the opening part of the upper end of the inner plug main body is provided with a sealing ring, the lower end of the one-way valve is provided with a sealing surface matched with the sealing ring, and when the outer cover is screwed into the wine outlet nozzle, the ejector rod presses the one-way valve, so that the sealing surface of the one-way valve is tightly attached to the sealing ring. The utility model provides a bottle cap, even the ejector pin on the enclosing cover causes the ejector pin size inconsistent because of production, bottle sealing process, also can ensure the sealed face of check valve with the sealing ring pastes tightly, and sealing reliability is good.

Description

a bottle cap

technical field

The utility model relates to the technical field of bottle caps, in particular to a bottle cap.

Background technique

Existing bottle caps for wine bottles are mainly composed of inner plugs, glass beads, one-way valves, wine spouts, fixed sleeves and outer covers, wherein the inner plugs are installed in the mouth of wine bottles, and the wine spouts are set On the upper end of the inner plug, the fixed sleeve is used to fix the wine spout and the inner plug on the bottle mouth. The glass beads are installed in the lower part of the inner cavity of the inner plug to prevent backflow and intercept the flow. The one-way valve is installed between the inner plug and the wine outlet. The inner cavity formed by the mouth plays the role of anti-backflow and interception, and the outer cover cooperates with the wine spout to play a sealing role.

The bottle cap of this structure has very high requirements on the production process and service conditions. As long as any link from the various processes of bottle cap production to the process of sealing the bottle by the manufacturer fails to meet the requirements, a chain reaction will be caused to make the opening, sealing and other functions problem appear.

Contents of the invention

In view of the above-mentioned current state of the art, the purpose of this utility model is to provide a bottle cap with good sealing reliability, so as to reduce the requirements on the production process and bottle sealing process.

In order to solve the above technical problems, a bottle cap provided by the utility model includes:

The inner plug includes an inner plug body that can be inserted into the bottle mouth, an annular shoulder extending radially outward from the upper end of the inner plug body, and a convex neck extending axially upward from the upper surface of the shoulder department;

A wine spout, the wine spout is fixedly sleeved on the outside of the convex neck, the wine spout is provided with external threads, and the lower end of the wine spout has a convex ring protruding outward;

A fixed sleeve, the fixed sleeve is fixedly embedded on the outside of the bottle mouth, and the upper end of the fixed sleeve is pressed on the convex ring, so that the convex ring of the wine spout is in close contact with the convex shoulder;

An outer cover, the outer cover is provided with an internal thread and a ejector rod that cooperate with the external thread;

glass beads, the glass beads are installed in the main body of the inner plug, and are used to seal the lower opening of the main body of the inner plug;

a one-way valve, the one-way valve is movably installed in the cavity formed by the convex neck and the wine spout; and

The upper opening of the inner plug body is provided with a sealing ring, and the lower end of the one-way valve is provided with a sealing surface matched with the sealing ring. When the outer cover is screwed into the wine spout, the top The rod is pressed against the one-way valve, so that the sealing surface of the one-way valve is in close contact with the sealing ring.

In one embodiment, the sealing surface is in an inverted cone shape, and the sealing ring protrudes inward and obliquely upward from the upper inner wall of the inner plug body.

In one of the embodiments, the main body of the inner plug is stepped, which includes an upper large-diameter section and a lower small-diameter section, and the outer diameter of the large-diameter section is an interference fit with the inner diameter of the bottle mouth. The outer diameter of the small diameter section and the inner diameter of the bottle mouth are clearance fit.

In one of the embodiments, several first anti-rotation ribs arranged at intervals along the circumferential direction are arranged on the upper surface of the shoulder, and/or several first anti-rotation ribs arranged along the circumference are arranged on the lower end surface of the wine spout. The second anti-rotation ribs arranged at intervals in the direction.

In one of the embodiments, at least one ring-shaped sealing tooth is provided on the mating surface of the shoulder and the mouth of the bottle.

In one of the embodiments, the wine spout includes an outer mouth cover, an inner mouth cover located inside the outer mouth cover, and several connecting ribs located between the outer mouth cover and the inner mouth cover for connecting the two together, The outer mouth cover is fixedly embedded on the outside of the convex neck of the inner plug, and the outer peripheral surface of the outer mouth cover is provided with the external thread.

In one of the embodiments, there are planes on both sides of the outer mouth sleeve, which divide the outer thread into discontinuous threads.

In one of the embodiments, the one-way valve includes a valve body with a closed upper end, an outer cylinder located outside the valve body, and a connecting portion connecting the lower end of the valve body with the lower end of the outer cylinder, and the connecting portion is provided with Said sealing surface, the top surface of the valve body is provided with grooves.

In one of the embodiments, the inner wall of the convex neck is provided with a plurality of axially extending ribs arranged at intervals along the circumferential direction, and the diameter of the circle surrounded by the inner end surfaces of the plurality of ribs is smaller than that of the outer surface. The outer diameter of the barrel.

In one embodiment, a sealing ring is provided on the inner top surface of the outer cover, and the outer diameter of the sealing ring is in interference fit with the inner diameter of the upper end of the wine spout.

Compared with the prior art, in the bottle cap provided by the utility model, since the upper opening of the inner plug body is provided with a sealing ring, and the lower end of the one-way valve is provided with a sealing surface matched with the sealing ring, when the outer cap When screwing in the wine spout, the ejector rod is pressed against the one-way valve, so that the sealing surface of the one-way valve is closely attached to the sealing ring, so that even if the ejector rod on the outer cover is damaged due to production, The size of the ejector rods is inconsistent during the sealing process, which can also ensure that the sealing surface of the one-way valve is closely attached to the sealing ring, and the sealing reliability is good.

The beneficial effects of the additional technical features of the utility model will be described in the specific implementation mode of this specification.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the bottle cap in the utility model embodiment;

Fig. 2 and Fig. 3 are respectively the cross-sectional structure schematic diagram and the plan view of the inner plug of the bottle cap in the embodiment of the present invention;

Fig. 4 and Fig. 5 are respectively the sectional structure schematic diagram and the bottom view of the wine spout of the bottle cap in the embodiment of the present invention;

Fig. 6 is a schematic cross-sectional structural view of the one-way valve of the bottle cap in the embodiment of the present invention;

Fig. 7 is a schematic cross-sectional structural view of the fixed sleeve of the bottle cap in the embodiment of the present invention;

Fig. 8 and Fig. 9 are the sectional structure schematic diagram and the bottom view of the outer cap of the bottle cap in the embodiment of the present invention;

Fig. 10 is a diagram of the use state of the bottle cap in the embodiment of the present invention.

Explanation of reference signs: 10, inner plug; 12, main body of inner plug; 12a, large-diameter section; 12b, small-diameter section; 14, sealing ring; 16, protruding shoulder; 16a, first anti-rotation rib; Teeth; 18, convex neck; 18a, convex rib; 20, glass bead; 30, one-way valve; 32, sealing surface; 34, valve body; 34a, groove; 36, outer cylinder; 38, connecting part; 40, wine outlet; 42, inner mouth cover; 42a, through hole; 44, outer mouth cover; 44a, external thread; 44b, second anti-rotation rib; 46, connecting rib; 48, convex ring; 50, fixed sleeve ; 52, pressure part; 60, outer cover; 62, internal thread; 64, ejector rod; 66, sealing ring; 90, bottle mouth.

detailed description

The utility model is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Referring to FIG. 1 , the bottle cap in one embodiment of the present invention is mainly composed of an inner plug 10 , a glass bead 20 , a one-way valve 30 , a spout 40 , a fixing sleeve 50 and an outer cap 60 .

1-3, the inner plug 10 includes an inner plug body 12 that can be inserted into the bottle mouth 90, an annular shoulder 16 extending radially outward from the upper end of the inner plug body 12, and a self-protruding shoulder. The upper surface of the part 16 has a convex neck 18 extending axially upward and a sealing ring 14 arranged at the upper opening of the inner plug main body 12 . The inner plug body 12 in this embodiment is stepped, and it includes an upper large-diameter section 12a and a lower small-diameter section 12b, the outer diameter of the large-diameter section 12a is an interference fit with the inner diameter of the bottle mouth 90 , can prevent the inner plug body 12 from shaking, and at the same time play a role of sealing, the outer diameter of the small diameter section 12b and the inner diameter of the bottle mouth 90 are clearance fit, so as to facilitate the insertion of the inner plug body 12 into the bottle mouth 90 . At least one ring-shaped sealing tooth 16b is provided on the mating surface of the shoulder portion 16 and the bottle mouth 90 to improve the sealing effect between the inner plug 10 and the bottle mouth 90 . The upper surface of the shoulder portion 16 is provided with a plurality of first anti-rotation ribs 16a arranged at intervals along the circumferential direction. The inner wall of the convex neck 18 is provided with several axially extending ribs 18a arranged at intervals along the circumferential direction. The sealing ring 14 protrudes inwardly and obliquely upward from the upper inner wall of the inner plug body 12 , and the upper surface of the sealing ring 14 is arc-shaped to increase the sealing surface.

Combining 1, 4-5, as shown in the figure, the wine spout 40 includes an outer mouth cover 44, an inner mouth cover 42 located in the outer mouth cover 44, and an inner mouth cover 42 located between the outer mouth cover 44 and the inner mouth cover 42. Several connecting ribs 46 that are connected together, the outer mouth cover 44 is fixedly embedded outside the convex neck 18 of the inner plug 10, so as to realize the sealing between the wine spout 40 and the inner plug 10; the outer circumference of the outer mouth cover 44 An external thread 44a is provided on the surface, preferably, the external thread 44a is a double-start thread. Because the external thread 44a of the outer mouth cover 44 is usually formed by laser processing on both sides, in order to prevent the dislocation between the threads on both sides, there are planes on both sides of the outer mouth cover 44, and the outer thread 44a is cut into discontinuous The lower end of the outer mouth cover 44 has an outwardly extending convex ring 48, and the lower end surface of the outer mouth cover 44 is provided with a number of second anti-rotation ribs 44b arranged at intervals along the circumferential direction, the second anti-rotation ribs 44b and The first anti-rotation rib 16a can increase the friction between the wine spout 40 and the inner plug 10 to prevent the relative rotation between the wine spout 40 and the inner plug 10 when the outer cover is opened; the top of the inner spout 42 has a through hole 42a.

Two glass beads 20 are stacked up and down inside the inner plug body 12 for sealing the lower end opening of the inner plug body 12 .

Combining 1 and 6, as shown in the figure, the one-way valve 30 is movably installed in the space formed by the convex neck 18 and the wine outlet 40, and the one-way valve 30 includes a valve body 34 with a closed upper end, The outer cylindrical body 36 located outside the valve body 34 and the connecting portion 38 connecting the lower end of the valve body 34 with the lower end of the outer cylindrical body 36, the outer diameter of the outer cylindrical body 36 is smaller than that defined by the inner end surfaces of several ribs 18a. The diameter of the circle that encircles, plays a guiding role in order to outer cylinder 36, and the top surface of valve body 34 is provided with groove 34a, when check valve 30 moves in convex neck 18, utilizes rib 18a Body 36 guides, and when pouring wine, the inner spout 42 is inserted between the valve body 34 and the outer cylinder 36, and can also guide the one-way valve 30, which can strengthen the stability of the axial movement of the one-way valve 30 and prevent the occurrence of Excessive swing. The connecting portion 38 is provided with an inverted tapered sealing surface 32 that cooperates with the sealing ring 14 . When the one-way valve 30 is pressed tightly, a reliable seal is formed between the sealing surface 32 and the sealing ring 14 . And because the sealing ring 14 is an inverted conical sealing surface 32, the sealing ring 14 is inclined upward, even when the force exerted on the check valve 30 is insufficient, the reliable sealing between the sealing ring 14 and the sealing surface 32 can be ensured.

As shown in Figure 7, the fixed sleeve 50 is a cylindrical structure, the upper end of the fixed sleeve 50 has an inwardly extending pressure portion 52, the fixed sleeve 50 is fixedly embedded in the outside of the bottle mouth 90, and the pressure portion at the upper end of the fixed sleeve 50 52 is pressed on the convex ring 48 of the wine spout 40, so that the lower end surface of the wine spout 40 is in close contact with the upper surface of the shoulder portion 16 to prevent wine from leaking.

Combined with 1, 8-9, as shown in the figure, the inner peripheral surface of the outer cover 60 is provided with an inner thread 62 that matches the outer thread 44a on the wine spout 40. The inner thread 62 is a double thread, and the inner thread of the outer cover 60 There is a push rod 64 extending axially in the middle of the top surface. When the outer cover 60 is screwed into the wine spout 40, the push rod 64 is inserted into the top surface of the valve body 34 of the one-way valve 30 through the through hole 42a at the top of the inner mouth cover 42 In the groove 34a on the top, the sealing surface 32 is closely attached to the sealing ring 14 to play a sealing role. The inner top surface of the outer cover 60 has a sealing ring 66, and the outer diameter of the sealing ring 66 is in interference fit with the inner diameter of the outer mouth cover 44 to play a sealing role and prevent wine from leaking.

Fig. 10 is a diagram of the use state of the bottle cap in the embodiment of the present invention. As shown in Figure 10, the inner plug body 12 of the inner plug 10 is inserted into the bottle mouth 90, the fixed sleeve 50 is fixedly embedded outside the bottle mouth 90, and the pressing part 52 at the upper end of the fixed sleeve 50 presses against the convex ring of the wine spout 40 48, so that the wine outlet 40 and the inner plug 10 are fixedly installed on the bottle mouth 90.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (10)

1. A bottle cap, comprising: An inner plug (10), the inner plug (10) includes an inner plug body (12) that can be inserted into the bottle mouth (90), and an annular shoulder extending radially outward from the upper end of the inner plug body (12) (16) and a convex neck (18) extending axially upward from the upper surface of the convex shoulder (16); A wine outlet (40), the wine outlet (40) is fixedly sleeved on the outside of the convex neck (18), the wine outlet (40) is provided with external threads (42), the outlet The lower end of the wine mouth (40) has an outwardly protruding convex ring (44); A fixed sleeve (50), the fixed sleeve (50) is fixedly embedded on the outside of the bottle mouth (90), and the upper end of the fixed sleeve (50) is pressed on the convex ring (44), so that the outlet The protruding ring (44) of the wine mouth (40) is in close contact with the protruding shoulder (16); An outer cover (60), the outer cover (60) is provided with an internal thread (62) and a push rod (64) cooperating with the external thread (42); glass beads (20), the glass beads (20) are installed in the inner plug body (12), and are used to seal the lower end opening of the inner plug body (12); and A one-way valve (30), the one-way valve (30) is movably installed in the inner cavity formed by the convex neck (18) and the wine outlet (40); It is characterized in that, A sealing ring (14) is provided at the upper opening of the inner plug body (12), and a sealing surface (32) matching the sealing ring (14) is provided at the lower end of the one-way valve (30). When the outer cover (60) is screwed into the wine spout (40), the ejector rod (64) is pressed against the one-way valve (30), so that the sealing surface (32) of the one-way valve (30) ) is close to the sealing ring (14). 2. The bottle cap according to claim 1, characterized in that, the sealing surface (32) is an inverted cone, and the sealing ring (14) is inward from the inner wall of the upper end of the inner plug body (12) and Slanted upwards. 3. The bottle cap according to claim 1, characterized in that, the inner plug body (12) is stepped, comprising an upper large diameter section (12a) and a lower small diameter section (12b), the large The outer diameter of the diameter section (12a) is an interference fit with the inner diameter of the bottle mouth (90), and the outer diameter of the small diameter section (12b) is a clearance fit with the inner diameter of the bottle mouth (90). 4. The bottle cap according to claim 1, characterized in that a number of first anti-rotation ribs (16a) arranged at intervals along the circumferential direction are arranged on the upper surface of the shoulder portion (16), and/or A plurality of second anti-rotation ribs (44b) arranged at intervals along the circumferential direction are arranged on the lower end surface of the wine spout (40). 5. The bottle cap according to claim 1, characterized in that at least one ring-shaped sealing tooth (16b) is provided on the matching surface of the shoulder (16) and the bottle mouth (90). 6. The bottle cap according to claim 1, characterized in that, the wine spout (40) comprises an outer mouth cover (44), an inner mouth cover (42) located in the outer mouth cover (44), and an outer mouth cover (42) located in the outer mouth cover (44). Between the mouth cover (44) and the inner mouth cover (42), several connecting ribs (46) are used to connect the two together, and the outer mouth cover (44) is fixedly embedded in the convex neck of the inner plug (10) The external thread (44a) is provided on the outer peripheral surface of the outer mouth cover (44) outside the part (18). 7. The bottle cap according to claim 6, characterized in that there are planes on both sides of the outer mouth cover (44) to divide the outer thread (44a) into discontinuous threads. 8. The bottle cap according to claim 1, characterized in that, the one-way valve (30) comprises a valve body (34) with an upper end closed, an outer cylinder (36) positioned outside the valve body (34) and a The connecting portion (38) where the lower end of the valve body (34) is connected to the lower end of the outer cylinder (36), the sealing surface (32) is provided on the connecting portion (38), and the top surface of the valve body (34) is provided with There are grooves (34a). 9. The bottle cap according to claim 8, characterized in that, the inner wall of the convex neck (18) is provided with some axially extending ribs (18a) arranged at intervals along the circumferential direction, and several of the convex ribs (18a) The diameter of the circle enclosed by the inner end surfaces of the ribs (18a) is smaller than the outer diameter of the outer cylinder (36). 10. The bottle cap according to any one of claims 1 to 9, characterized in that, the inner top surface of the outer cover (60) has a sealing ring (66), and the outer diameter of the sealing ring (66) is in line with the outer diameter of the sealing ring (66). Describe the inner diameter interference fit of the wine mouthpiece (40) upper end.