Combined cover

Abstract

The invention discloses a combined cover which comprises a connecting cylinder and an outer cover, one end of the connecting cylinder is provided with an internal connecting thread, the other end of the connecting cylinder is provided with an external connecting thread, the outer cover is provided with a matching thread, the matching thread is matched with the external connecting thread, one end of the connecting cylinder is provided with a blocking piece, and the blocking piece is provided with a liquid hole and an air hole. The air hole and the liquid hole are respectively positioned at two ends of the baffle. The combined cover has the advantages that the air hole and the liquid hole are formed in the two ends of the blocking piece respectively, when beverage is drunk, the liquid hole is located on the lower portion, the air hole is located on the upper portion, the beverage flows out of the liquid hole, air enters the air hole, it is guaranteed that negative pressure does not occur in a bottle, and the beverage can flow out smoothly.

Description

Technical Field

[0001] The invention relates to the field of bottle caps, in particular to a combined cap. Background Art

[0002] At present, many beverages are packaged in bottles, and the mouths of the bottles for packaging beverages are all open. There is a problem with the open mouths, that is, when consumers drink, they may choke when drinking at high speed due to the large diameter of the bottle mouth. In addition, the large diameter is not suitable for drinking carefully. In order to reduce the opening of the bottle mouth, the patent publication CN114803127A discloses a bottle cap with an adjustable opening size. However, this additional cover has only one channel. When the user drinks the beverage through the channel, the external gas cannot enter the bottle, which will cause negative pressure in the bottle. Once the negative pressure occurs in the bottle, the beverage in the bottle cannot flow out smoothly. Summary of the invention

[0003] In view of the above problems, the present invention proposes a combined cover, wherein an air hole and a liquid hole are respectively opened at both ends of the baffle. When drinking a beverage, the liquid hole is located at the bottom and the air hole is located at the top. The beverage flows out from the liquid hole and the gas enters from the air hole, ensuring that there is no negative pressure in the bottle and the beverage can flow out smoothly.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A combined cover comprises a connecting cylinder and an outer cover, wherein one end of the connecting cylinder is provided with an internal connecting thread, the other end of the connecting cylinder is provided with an external connecting thread, the outer cover is provided with a matching thread, the matching thread matches with the external connecting thread, one end of the connecting cylinder is provided with a baffle, a liquid hole and an air hole are opened on the baffle, and the air hole and the liquid hole are respectively located at the two ends of the baffle.

[0006] In this combination cap, the internal connection thread on the connecting cylinder is used to screw with the bottle mouth of the bottle, and the outer cover cooperates with the external thread on the connecting cylinder through its own matching thread. When the bottle mouth is closed, the connecting cylinder is installed on the bottle mouth (when installed in place, the bottle mouth of the bottle is stuck in the step ring groove inside the connecting cylinder), and the outer cover is installed on the connecting cylinder. When the cover needs to be opened, the outer cover is unscrewed from the connecting cylinder, and the beverage can be drunk through the connecting cylinder. One end of the connecting cylinder is blocked by the baffle. When drinking the beverage, the liquid hole can be located at the bottom and the air hole can be located at the top. The beverage can flow out from the liquid hole, and the gas can enter from the air hole. This ensures that there is no negative pressure in the bottle and the beverage can be drunk smoothly.

[0007] In summary, in this combination cover, air holes and liquid holes are respectively opened at both ends of the baffle. When drinking a beverage, the liquid hole is located at the bottom and the air hole is located at the top. The beverage flows out from the liquid hole and the gas enters from the air hole, ensuring that there is no negative pressure in the bottle and the beverage can flow out smoothly.

[0008] In this combination cap, when drinking a beverage, since the beverage flows out through the liquid hole, the diameter of the liquid hole is much smaller than the diameter of the bottle mouth, so the outflow of the beverage when drinking the beverage through the liquid hole is relatively small, there will be no choking phenomenon, and it is convenient to taste the beverage carefully.

[0009] Specifically in the combined cover of the present invention, the outer cover comprises a top sheet and a ring tube, the top sheet and the ring tube are integrally formed, and a matching thread is provided on the inner tube wall of the ring tube.

[0010] Optionally, the baffle is provided with a concave, the concave and the inner wall of the connecting cylinder form an air channel, the air channel is connected to the air hole, and a guide slope is provided on one side of the baffle.

[0011] The baffle is arranged at the mouth of the connecting cylinder, and a part of the baffle is recessed into the interior of the connecting cylinder, and an airway is formed between the recess and the inner wall of the connecting cylinder. The airway is a circular airway. Due to the recess on the baffle, a guide slope is formed on one side of the baffle. When the air hole is located at the top and the liquid hole is located at the bottom, the existence of the guide slope can prevent the liquid from overflowing into the airway and guide the liquid to the liquid hole.

[0012] Optionally, an anti-theft ring is provided on the outer cover.

[0013] Specifically, the anti-theft ring is arranged on the ring tube, and the anti-theft ring and the top sheet are respectively located at the two ends of the ring tube. When the outer cover is unscrewed from the connecting sleeve, the anti-theft ring will fall off from the outer cover, and the anti-theft ring will remain on the connecting cylinder.

[0014] Optionally, a sealing gasket is provided between the outer cover and the baffle.

[0015] Optionally, the sealing gasket is bonded to the outer cover.

[0016] The sealing pad is fixed on the top sheet of the outer cover by ultrasonic welding. The sealing pad includes but is not limited to a silicone sealing pad.

[0017] Optionally, the outer cover is made of polyethylene.

[0018] The outer cover can be specifically made of high-density polyethylene injection molding.

[0019] Optionally, the connecting cylinder is made of polypropylene.

[0020] Optionally, the baffle is made of polypropylene.

[0021] The beneficial effect of the present invention is that air holes and liquid holes are respectively opened at both ends of the baffle. When drinking a beverage, the liquid hole is located at the bottom and the air hole is located at the top. The beverage flows out from the liquid hole and the gas enters from the air hole, ensuring that there is no negative pressure in the bottle and the beverage can flow out smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the structure of the outer cover;

[0024] Figure 2 It is a schematic diagram of the structure of the connecting cylinder;

[0025] Figure 3 It is a schematic diagram of the structure inside the connecting cylinder;

[0026] Figure 4 It is a schematic diagram of the state before the outer cover and the connecting cylinder are matched;

[0027] Figure 5 It is a schematic diagram of the state when the outer cover and the connecting cylinder are fully matched together.

[0028] The reference numerals in the figure are: 101, top plate; 102, ring cylinder; 2, anti-theft ring; 3, baffle; 301, concave; 302, air hole; 303, liquid hole; 304, guide slope; 34, airway; 4, connecting cylinder; 401, external connecting thread; 402, internal connecting thread; 403, step ring groove; 5, sealing gasket. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, a combined cover includes a connecting cylinder 4 and an outer cover, one end of the connecting cylinder 4 is provided with an internal connecting thread 402, the other end of the discharging cylinder is provided with an external connecting thread 401, the outer cover is provided with a matching thread, the matching thread cooperates with the external connecting thread 401, one end of the connecting cylinder 4 is provided with a baffle 3, the baffle 3 is provided with a liquid hole 303 and an air hole 302, the air hole 302 and the liquid hole 303 are respectively located at the two ends of the baffle 3.

[0033] In this combined cap, the internal connection thread 402 on the connecting cylinder 4 is used to screw with the bottle mouth of the bottle, and the outer cover cooperates with the external thread on the connecting cylinder 4 through its own matching thread. When the bottle mouth of the bottle is closed, the connecting cylinder 4 is installed on the bottle mouth of the bottle (when installed in place, the bottle mouth of the bottle clamps the step ring groove 403 inside the connecting cylinder 4, the step ring groove 403 clamps the bottle mouth, and the entire connecting cylinder 4 is fixed to the bottle mouth and cannot be screwed off), and the outer cover is installed on the connecting cylinder 4. When it is necessary to open the cover, the outer cover is screwed off from the connecting cylinder 4, and the beverage can be drunk through the connecting cylinder 4 at this time. One end of the connecting cylinder 4 is in a state of being blocked by the blocking sheet 3. When drinking the beverage, the liquid hole 303 can be located at the bottom and the air hole 302 can be located at the top. The beverage can flow out from the liquid hole 303, and the gas can enter from the air hole 302, so that there will be no negative pressure in the bottle, and the beverage can be drunk smoothly.

[0034] In summary, in this combination cover, an air hole 302 and a liquid hole 303 are respectively opened at both ends of the baffle 3. When drinking a beverage, the liquid hole 303 is located at the bottom and the air hole 302 is located at the top. The beverage flows out from the liquid hole 303 and the gas enters from the air hole 302, ensuring that there is no negative pressure in the bottle and the beverage can flow out smoothly.

[0035] In this combination cap, when drinking a beverage, since the beverage flows out through the liquid hole 303, and the diameter of the liquid hole 303 is much smaller than the diameter of the bottle mouth, the outflow amount of the beverage when drinking the beverage through the liquid hole 303 is relatively small, the phenomenon of choking will not occur, and it is convenient to taste the beverage carefully.

[0036] Specifically in the combined cover of the present invention, the outer cover comprises a top sheet 101 and a ring tube 102 , the top sheet 101 and the ring tube 102 are integrally formed, and a matching thread (not visible in the field of vision, not marked in the drawings) is provided on the inner tube wall of the ring tube 102 .

[0037] Taking the current conventional 38mm diameter bottle as an example, the maximum outer diameter of the outer cap is 35.5-37mm, the height is 16-17mm, and the top diameter of the internal matching thread is 33.5-35mm. The maximum outer diameter of the connecting sleeve is 40.5-42mm, the height is 33-35mm, the top diameter of the internal connecting thread is 35-36mm; the outer diameter of the external connecting thread is 33-34mm, and the diameter of the top sheet is 40-41mm.

[0038] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the baffle 3 is provided with a concave 301 , and the concave 301 and the inner wall of the connecting cylinder 4 form an air passage 34 , and the air passage 34 is connected to the air hole 302 . A guide slope 304 is provided on one side of the baffle 3 .

[0039] The baffle 3 is arranged at the mouth of the connecting cylinder 4, and a part of the baffle 3 is recessed into the interior of the connecting cylinder 4, and an air channel 34 is formed between the recess 301 and the inner wall of the connecting cylinder 4. The air channel 34 is a circular air channel 34. Due to the recess 301 on the baffle 3, the air hole 302 and the liquid hole 303 are respectively located at the two ends of the recess 301, and a guide slope 304 is formed on one side of the baffle 3. When the air hole 302 is located at the top and the liquid hole 303 is located at the bottom, the existence of the guide slope 304 can prevent the liquid from overflowing to the air channel 34, and at the same time guide the liquid to the liquid hole 303.

[0040] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, an anti-theft ring 2 is provided on the outer cover.

[0041] Specifically, the anti-theft ring 2 is arranged on the ring tube 102 , and the anti-theft ring 2 and the top plate 101 are respectively located at the two ends of the ring tube 102 . When the outer cover is unscrewed from the connecting sleeve, the anti-theft ring 2 will fall off from the outer cover, and the anti-theft ring 2 will remain on the connecting cylinder body 4 .

[0042] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, a sealing gasket 5 is provided between the outer cover and the baffle 3. The sealing gasket 5 seals the liquid hole and the air hole.

[0043] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the sealing gasket 5 is bonded and matched with the outer cover.

[0044] Specifically, the sealing pad 5 is fixed to the top sheet 101 of the outer cover by ultrasonic welding. The sealing pad 5 includes but is not limited to a silicone sealing pad 5, and the heat sealing strength of the welding needs to be greater than 5N / 15mm. Taking the current conventional 38mm diameter bottle as an example, the diameter of the silicone sealing pad is 32-33mm, the outer thickness is 0.2-0.8mm; the diameter of the middle protruding part is 6-8mm, and the thickness is 0.9-1.5mm.

[0045] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the outer cover is made of polyethylene.

[0046] The outer cover can be specifically made of high-density polyethylene injection molding.

[0047] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the connecting cylinder 4 is a connecting cylinder 4 made of polypropylene.

[0048] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 And attached Figure 4 As shown, the baffle 3 is a baffle 3 made of polypropylene.

[0049] Specifically in this embodiment, the shape of the liquid holes includes but is not limited to triangle, circle, square and other shapes. The number of liquid holes is greater than the number of air holes. The number of air holes can be one and the number of liquid holes can be three.

[0050] When the outer cover and the connecting cylinder are assembled together, the state is as shown in the attached Figure 5 As shown in the figure, according to the GB / T17876 method, the opening torque of the outer cover and the connecting cylinder is 0.6-2.2Nm; the twisting torque is < 20 2.2Nm; after the connecting cylinder and the bottle body are screwed together, the overall sealing performance can reach no leakage at 200 kPa and no cover falling off at 350 kPa.

[0051] The above-described embodiments only express some embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, it is still possible to modify the technical solutions recorded in the above-mentioned embodiments, or to replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combination cover, characterized in that: It includes a connecting cylinder and an outer cover, one end of the connecting cylinder is provided with an internal connecting thread, the other end of the connecting cylinder is provided with an external connecting thread, the outer cover is provided with a matching thread, the matching thread cooperates with the external connecting thread, one end of the connecting cylinder is provided with a baffle, the baffle is provided with liquid holes and air holes, the air holes and the liquid holes are respectively located at the two ends of the baffle, a step ring groove is provided in the connecting cylinder, and the number of the liquid holes is greater than the number of the air holes.

2. A combined cover according to claim 1, characterized in that: The baffle is provided with an inner concave, and the inner concave and the inner wall of the connecting cylinder form an air channel, the air channel is connected to the air hole, and the air channel is a circular air channel.

3. A combined cover according to claim 2, characterized in that: The air hole and the liquid hole are respectively located at two ends of the concave portion, and a flow guide slope is arranged on one side of the baffle.

4. A combined cover according to claim 1, characterized in that: The outer cover comprises a top sheet and a ring tube, wherein the ring tube is connected to the top sheet and an anti-theft ring is arranged on the ring tube.

5. A combined cover according to claim 1, characterized in that: A sealing gasket is arranged between the outer cover and the blocking piece, and the sealing gasket is closely attached to the air hole and the liquid hole.

6. A combined cover according to claim 5, characterized in that: The sealing gasket is a silicone sealing gasket, and the sealing gasket and the outer cover are matched together by ultrasonic welding, and the heat-sealing strength of the welding is greater than 5N / 15mm.

7. A combined cover according to claim 1, characterized in that: The outer cover is made of polyethylene.

8. The combined cover according to claim 1, characterized in that: The connecting cylinder and the blocking piece are integrally formed, and the connecting cylinder is made of polypropylene.

9. The combined cover according to claim 1, characterized in that: The liquid hole is circular, triangular or square.

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