Double-layer sealed folding bottle cap

Abstract

The utility model relates to a double-layer sealed folding type bottle cap which comprises a first cap body, a folding part and a second cap body which are sequentially connected, and the first cap body is used for sealing the second cap body; the second cover body comprises a lower cover body, the side wall of the lower cover body is bent up and down to form multiple layers so as to be connected with the bottle body in a sealed mode, a liquid outlet cylinder is connected to the interior of the lower cover body, and the first cover body comprises an upper cover body and a sealing cylinder which is arranged in the upper cover body and used for sealing the liquid outlet cylinder. The top of the liquid outlet cylinder is sealed through the sealing cylinder, and then the lower cover body is sealed through the upper cover body, so that a double-layer sealing effect is achieved, the sealing performance is improved, liquid stored in the bottle body can be better stored, when the bottle body topples over, the situation that the liquid leaks out can be reduced or avoided, and use is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of bottle caps, and in particular relates to a double-layer sealed foldable bottle cap. Background Art

[0002] The foldable bottle cap is generally composed of an upper cover body, a lower cover body and a connecting part. After opening the upper cover body, it can still be connected to the lower cover body under the connecting action of the connecting part. The upper cover body is not easy to be forgotten or lost, which provides convenience for use. However, in the prior art, the foldable bottle cap still has the following problems during its use. Specifically, it generally does not have a double-layer sealing structure, and its sealing is only a direct shielding seal formed by the upper cover body on the lower cover body, with poor sealing performance and poor sealing protection effect for the product. When the bottle body falls over, the upper cover body is also easy to loosen, leak or open, and the liquid is easy to leak out, and the protective effect is weak. It is generally connected to the bottle body by a protrusion on the bottle body that is clamped in a groove on the lower cover body, but the stability of the connection is poor and it is easy to be pulled out. Utility Model Content

[0003] The purpose of the utility model is to provide a double-layer sealed foldable bottle cap in order to solve the above problems, aiming to solve the problem that in the prior art, the foldable bottle cap generally does not have a double-layer sealing structure, and its sealing is only a direct shielding seal formed by the upper cover body on the lower cover body, which has a poor sealing performance; it is generally connected to the bottle body by a protrusion on the bottle body being clamped in a clamping groove on the lower cover body, but it has a poor connection stability and is easy to be pulled out.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A double-layer sealed foldable bottle cap, comprising a cap body 1, a folding portion, and a cap body 2 connected in sequence, wherein the cap body 1 is used to seal the cap body 2;

[0006] The second cover body includes a lower cover body, the upper and lower side walls of the lower cover body are bent to form multiple layers for sealing connection with the bottle body, and a liquid outlet cylinder is connected inside the lower cover body. The first cover body includes an upper cover body and a sealing cylinder arranged inside the upper cover body for sealing the liquid outlet cylinder.

[0007] As a further optimization scheme of the utility model, the side wall of the lower cover body is bent upward to form a middle layer and then bent downward to form an inner layer. A snap-fitting boss is provided on the inner side wall of the middle layer. The bottle body is snapped into the cavity formed between the middle layer and the inner layer and is sealed and connected to the middle layer and the inner layer through the snap-fitting boss.

[0008] As a further optimization solution of the utility model, a plurality of dividing grooves for dividing the clamping boss into a plurality of sections are evenly provided on the inner side wall of the middle layer.

[0009] As a further optimization solution of the utility model, the tops of the middle layer and the inner layer protrude outward to form snap-fit ​​protrusions, and the inner wall of the upper cover is recessed inward to form snap-fit ​​grooves for snap-fitting the snap-fit ​​protrusions.

[0010] As a further optimization scheme of the utility model, the outer wall of the sealing tube is in contact with the inner wall of the liquid outlet tube, the top of the liquid outlet of the liquid outlet tube is outwardly expanded and formed with a drainage nozzle, and the top of the liquid outlet tube and the drainage nozzle are both bent outward to form a curling edge.

[0011] As a further optimization solution of the utility model, a tear-off sealing sheet is connected to the bottom of the liquid discharge cylinder, and a tear-off groove is provided at the connection position between the liquid discharge cylinder and the tear-off sealing sheet.

[0012] As a further optimization scheme of the utility model, the cover body also includes a cover-opening boss arranged on the outer wall of the upper cover body, a protective pad arranged on the contact surface of the upper cover body and the lower cover body, and a raised rib arranged on the top wall of the upper cover body and located within the drainage nozzle range.

[0013] As a further optimization scheme of the utility model, the folding part includes a folding connecting piece connected to the upper cover body and the lower cover body, and a flexible connecting strip symmetrically arranged on both sides of the folding connecting piece and used to connect the upper cover body and the lower cover body, and a folding groove is opened on the folding connecting piece.

[0014] The beneficial effects of the utility model are:

[0015] 1) The utility model seals the top of the liquid outlet cylinder through the sealing cylinder, and then seals the lower cover body through the upper cover body, thereby forming a double-layer sealing effect, improving the sealing performance, and can better preserve the liquid stored in the bottle body. When the bottle body is tilted, it can also reduce or avoid liquid leakage, which is more convenient to use;

[0016] 2) In the utility model, the side walls of the lower cover body are bent upward to form a middle layer and then bent downward to form an inner layer. A snap-fitting boss is provided on the inner side wall of the middle layer. The bottle body, the middle layer and the inner layer can be tightly connected together by the pressing action of the snap-fitting boss. The snap-fitting boss is divided into several sections by providing a separation groove, so that the cover body can be removed from the bottle body only after changing its position several times and pulling it. The connection stability is good and it is not easy to get loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model (in the closed state).

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model (in the cover-opening state).

[0019] Figure 3 The utility model Figure 2 Top view of the device (with the cover opened).

[0020] Figure 4 The utility model Figure 2 Bottom view of the device (with the cover opened).

[0021] Figure 5 It is a three-dimensional diagram of the overall structure of the utility model (in the cover-opening state).

[0022] Figure 6 The utility model Figure 2 Front cross-sectional view of (cover open).

[0023] Figure 7 The utility model Figure 1 Front cross-sectional view of (closed lid).

[0024] In the figure: 1. Cover body 1; 11. Upper cover body; 12. Cover-opening boss; 13. Sealing cylinder; 14. Snap-in groove; 15. Raised rib; 16. Protective pad; 2. Cover body 2; 21. Lower cover body; 22. Middle layer; 23. Inner layer; 24. Snap-in boss; 241. Partition groove; 25. Liquid discharge cylinder; 26. Tear-off sealing sheet; 27. Tear-off groove; 28. Snap-in boss; 29. ​​Curled edge; 3. Folding portion; 31. Folding connecting sheet; 32. Flexible connecting strip. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] like Figure 1-7 As shown, a double-layer sealed foldable bottle cap comprises a cap body 1, a folding portion 3, and a cap body 2 connected in sequence, wherein the cap body 1 is used to seal the cap body 2;

[0027] The cover body 2 includes a lower cover body 21, the upper and lower side walls of the lower cover body 21 are bent to form multiple layers for sealing connection with the bottle body, and a liquid outlet cylinder 25 is connected inside the lower cover body 21. The cover body 1 includes an upper cover body 11 and a sealing cylinder 13 arranged inside the upper cover body 11 for sealing the liquid outlet cylinder 25.

[0028] Preferably, the side wall of the lower cover body 21 is bent upward to form a middle layer 22 and then bent downward to form an inner layer 23. A snap-fit ​​boss 24 is provided on the inner wall of the middle layer 22. The bottle body is snapped into the cavity formed between the middle layer 22 and the inner layer 23 and is sealed with the middle layer 22 and the inner layer 23 through the snap-fit ​​boss 24.

[0029] Furthermore, a plurality of separation grooves 241 for dividing the clamping boss 24 into a plurality of sections are evenly formed on the inner side wall of the middle layer 22, so as to facilitate clamping the lower cover 21 on the bottle body and prevent the cover 21 from being separated from the bottle body.

[0030] Preferably, the tops of the middle layer 22 and the inner layer 23 protrude outward to form a snap-fitting protrusion 28, and the inner wall of the upper cover body 11 is recessed inward to form a snap-fitting groove 14 for snapping the snap-fitting protrusion 28, and the snap-fitting protrusion 28 is snapped into the inside of the snap-fitting groove 14, so that the upper cover body 11 and the lower cover body 21 are sealed and connected.

[0031] Preferably, the outer wall of the sealing tube 13 is in contact with the inner wall of the liquid discharge tube 25, so that the sealing tube 13 can form a sealing effect on the top of the liquid discharge tube 25 to increase the sealing effect. Even if the tear-off sealing sheet 26 is torn off and the bottle body is tilted, the liquid is not easy to leak out due to its better sealing effect. The top of the liquid outlet of the liquid discharge tube 25 is outwardly expanded and formed with a drainage nozzle. The top of the liquid discharge tube 25 and the drainage nozzle are both bent outwardly to form a curling edge 29. The drainage nozzle is arranged to facilitate pouring of liquid and can guide the liquid to be poured out from the drainage nozzle, and the design of the curling edge 29 serves as a diversion.

[0032] Preferably, a tear sealing sheet 26 is connected to the bottom of the liquid discharge tube 25, and a tear groove 27 is provided at the connection position between the liquid discharge tube 25 and the tear sealing sheet 26. It should be noted that, in the present embodiment, the tear sealing sheet 26 has a pull ring, and the tear groove 27 can be torn down by pinching the pull ring, so that the liquid pouring port will leak out.

[0033] Preferably, the cover body 1 also includes a cover-opening boss 12 arranged on the outer wall of the upper cover body 11, a protective pad 16 arranged on the contact surface between the upper cover body 11 and the lower cover body 21, and a raised rib 15 arranged on the inner top wall of the upper cover body 11 and located within the drainage nozzle range. In use, the cover-opening boss 12 is arranged to facilitate opening the cover.

[0034] Preferably, the folding portion 3 includes a folding connecting piece 31 connected to the upper cover body 11 and the lower cover body 21, and a flexible connecting strip 32 symmetrically arranged on both sides of the folding connecting piece 31 and used to connect the upper cover body 11 and the lower cover body 21. A folding groove is provided on the folding connecting piece 31. Through the combined use of the folding connecting piece 31 and the flexible connecting strip 32, the connection stability is better and it is not easy to break even after multiple foldings, so that the cover body 1 and the cover body 2 2 are not easy to separate.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A double-layer sealed foldable bottle cap, characterized in that: It comprises a cover body 1 (1), a folding portion (3), and a cover body 2 (2) which are connected in sequence, wherein the cover body 1 (1) is used to seal the cover body 2 (2); The cover body 2 (2) comprises a lower cover body (21), the side walls of the lower cover body (21) are bent at the upper and lower parts to form multiple layers for sealing connection with the bottle body, and the lower cover body (21) is internally connected with a liquid outlet cylinder (25), and the cover body 1 (1) comprises an upper cover body (11) and a sealing cylinder (13) arranged inside the upper cover body (11) for sealing the liquid outlet cylinder (25).

2. A double-layer sealed foldable bottle cap according to claim 1, characterized in that: The side wall of the lower cover body (21) is bent upward to form a middle layer (22), and then bent downward to form an inner layer (23). A snap-fitting boss (24) is provided on the inner side wall of the middle layer (22). The bottle body is snap-fitted into a cavity formed between the middle layer (22) and the inner layer (23) and is sealedly connected to the middle layer (22) and the inner layer (23) via the snap-fitting boss (24).

3. A double-layer sealed foldable bottle cap according to claim 2, characterized in that: A plurality of separation grooves (241) for dividing the clamping boss (24) into a plurality of sections are evenly arranged on the inner side wall of the middle layer (22).

4. A double-layer sealed foldable bottle cap according to claim 2, characterized in that: The tops of the middle layer (22) and the inner layer (23) protrude outward to form a snap-fit ​​protrusion (28), and the inner wall of the upper cover body (11) is recessed inward to form a snap-fit ​​groove (14) for snap-fitting the snap-fit ​​protrusion (28).

5. The double-layer sealed foldable bottle cap according to claim 1, characterized in that: The outer wall of the sealing cylinder (13) is in contact with the inner wall of the liquid outlet cylinder (25); the top of the liquid outlet of the liquid outlet cylinder (25) is outwardly expanded and formed with a drainage nozzle; the tops of the liquid outlet cylinder (25) and the drainage nozzle are both bent outwardly to form a curling edge (29).

6. The double-layer sealed foldable bottle cap according to claim 1, characterized in that: The bottom of the liquid discharge cylinder (25) is connected to a tearing sealing sheet (26), and a tearing groove (27) is provided at the connection position between the liquid discharge cylinder (25) and the tearing sealing sheet (26).

7. The double-layer sealed foldable bottle cap according to claim 5, characterized in that: The cover body (1) further comprises a cover-opening boss (12) provided on the outer wall of the upper cover body (11), a protective pad (16) provided on the contact surface between the upper cover body (11) and the lower cover body (21), and a raised rib (15) provided on the inner top wall of the upper cover body (11) and located within the range of the drainage nozzle.

8. The double-layer sealed foldable bottle cap according to claim 1, characterized in that: The folding portion (3) comprises a folding connecting piece (31) connected to the upper cover body (11) and the lower cover body (21), and a flexible connecting strip (32) symmetrically arranged on both sides of the folding connecting piece (31) and used to connect the upper cover body (11) and the lower cover body (21), and a folding groove is provided on the folding connecting piece (31).

Images