Bottle cap assembly locking structure

Abstract

The utility model provides a bottle cap assembly locking structure. The bottle cap comprises a bottle cap body, a bottle body and a bottle neck connected to the bottle body, an internal thread section and a first connecting piece are arranged in the bottle cap body, an external thread section and a second connecting piece are arranged on the outer side wall of the bottle neck, the internal thread section can be in threaded fit with the external thread section, and the second connecting piece is located between the external thread section and the bottle body; the first connecting piece comprises a first protruding block arranged in the bottle cap body, and the first protruding block is provided with a first inclined guide face and a first limiting face. The second connecting piece comprises a second convex block; a second inclined guide surface and a second limiting surface are arranged on the second convex block; when the internal thread section and the external thread section are screwed into the bottle mouth in a forward thread mode, the bottle cap body can be smoothly screwed into the bottle mouth. When the internal thread section and the external thread section are screwed out in opposite directions, the first limiting face and the second limiting face abut against each other, and therefore the bottle cap body is prevented from being screwed out of the bottle mouth. A locking structure in the bottle cap assembly is newly designed, and installation is very convenient and fast.

Description

Technical Field

[0001] The utility model relates to a bottle cap, in particular to a locking structure of a bottle cap assembly. Background Art

[0002] Existing bottle cap structures, such as a fresh-keeping storage cap and a packaging container disclosed in China Utility Model Patent No. CN217865820U, mainly include an upper cover, a lower cover, and a cutter, wherein an inner thread section and an annular inner buckle ring are provided on the inner side of the lower cover.

[0003] During the actual installation process, the bottle includes a bottle body and a bottle mouth, and the entire fresh-keeping storage cap will be directly installed on the bottle mouth of the corresponding bottle. The bottle mouth of the corresponding bottle body is also provided with an external thread section and an external snap-fit ​​ring body. The internal thread section and the external thread section are threadedly engaged with each other, and the internal snap-fit ​​ring body needs to be embedded between the external snap-fit ​​ring body and the bottle body.

[0004] Although the above-mentioned existing bottle cap structure has high stability in use after installation, since both the outer snap-fit ​​ring body and the inner snap-fit ​​ring body are circular structures, when the fresh-keeping storage cap is installed into the bottle mouth, hard squeezing will occur between the outer snap-fit ​​ring body and the inner snap-fit ​​ring body, thereby causing physical deformation of the outer snap-fit ​​ring body and / or the inner snap-fit ​​ring body, so that the inner snap-fit ​​ring body can be smoothly embedded between the outer snap-fit ​​ring body and the bottle body, and the installation process is relatively difficult. Utility Model Content

[0005] In view of this, an object of the utility model is to provide a locking structure of a bottle cap assembly, which has a completely new design for the locking structure inside the bottle cap assembly and is very convenient to install.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] A bottle cap assembly locking structure, comprising a bottle cap body, a bottle body, and a bottle mouth connected to the bottle body, wherein the bottle cap body is provided with an internal thread section and a first connecting piece, and an external thread section and a second connecting piece are provided on an outer wall of the bottle mouth, wherein the internal thread section can be threadably matched with the external thread section, and the second connecting piece is located between the external thread section and the bottle body;

[0008] The first connecting member comprises a first protrusion disposed in the bottle cap body, and the first protrusion is provided with a first inclined guide surface and a first limiting surface;

[0009] The second connecting member comprises a second protrusion disposed on the outer side wall of the bottle mouth, and the second protrusion is provided with a second inclined guide surface and a second limiting surface;

[0010] When the internal thread section and the external thread section are screwed into each other in a positive direction, the bottle cap body gradually moves toward the bottle body, the first inclined guide surface and the second inclined guide surface contact and fit each other, and the bottle cap body can be smoothly screwed into the bottle mouth;

[0011] When the internal thread segment and the external thread segment are screwed out in opposite directions, the first limiting surface and the second limiting surface conflict with each other, thereby limiting the bottle cap body from being screwed out of the bottle mouth.

[0012] Through the above technical solution, when the bottle cap body needs to be installed on the bottle mouth, the bottle cap body is sleeved on the bottle mouth, the internal thread section and the external thread section are screwed together in a positive direction, and the bottle cap body is gradually moved toward the side of the bottle body. At this time, as the bottle cap body rotates, the first inclined guide surface on the first protrusion and the second inclined guide surface on the second protrusion will rub against each other, but the bottle cap body still rotates smoothly in a positive direction until the end of the bottle cap body abuts against the side wall of the bottle body, or the internal thread section and the external thread section are screwed together to the limit position, the bottle cap body stops rotating, and the installation is completed;

[0013] If the bottle cap body has a tendency to rotate in the reverse direction, the first limiting surface on the first protrusion and the second limiting surface on the second protrusion conflict with each other, which can effectively limit the bottle cap body from rotating in the reverse direction. At this time, the bottle cap body can be directly limited from coming out of the bottle mouth. In short, the bottle cap body can rotate forward into the bottle mouth, but cannot rotate backward out of the bottle mouth.

[0014] Therefore, the advantage of adopting the above structure is that, although a first protrusion with a first inclined guide surface and a second protrusion with a second inclined guide surface are also adopted, the degree of physical deformation can be controlled to a very small level, which greatly improves the overall installation convenience; in addition, the connection stability between the bottle cap body and the bottle mouth is greatly improved, and even if a rotational force is accidentally applied to the bottle cap body, the connection stability between the bottle cap body and the bottle mouth will be extremely high.

[0015] Preferably, the number of the first protrusions is more than two, and all the first protrusions are evenly distributed on the inner side of the bottle cap body.

[0016] Through the above technical solution, the number of matching positions between the plurality of first protrusions and the second protrusions is increased, which helps to improve the connection stability between the bottle cap body and the bottle mouth.

[0017] Preferably, the number of the second protrusions is more than two, and all the second protrusions are evenly distributed on the outer side wall of the bottle mouth.

[0018] Through the above technical solution, the multiple first protrusions can be matched with the multiple second protrusions one by one, which further increases the mutual matching positions and further improves the connection stability between the bottle cap body and the bottle mouth.

[0019] Preferably, an annular retaining wall is provided inside the bottle cap body, and the retaining wall is located at the inner end of the bottle cap body as a sealing end. A sealing film is provided on the sealing end, and a accommodating space for accommodating materials is formed between the sealing film and the retaining wall. A matching channel is formed between the retaining wall and the inner side wall of the bottle cap body provided with the internal thread section, and the bottle mouth can enter into the matching channel.

[0020] Through the above technical solution, on the one hand, a container space can be formed between the baffle wall and the sealing film, and corresponding materials, such as tea powder, can be prevented from entering the accommodating space, so as to facilitate the later users to unpack and drink the goods; on the other hand, the bottle mouth can be limited by the baffle wall and the inner wall of the bottle cap body, which is beneficial to further improve the connection stability between the bottle mouth and the bottle cap body.

[0021] Preferably, the sealing end extends between the internal thread section and the first connecting member.

[0022] Through the above technical solution, the length of the entire retaining wall is extended to a relatively long position, which effectively expands the entire containing space and can accommodate more materials.

[0023] Preferably, an annular protrusion is provided on the side wall of the retaining wall close to the accommodating space.

[0024] Through the above technical solution, when the bottle mouth enters the matching channel, the annular protrusion will also generate a squeezing force on the outer side of the bottle mouth, further improving the connection stability between the bottle mouth and the bottle cap body.

[0025] Preferably, the protruding direction of the annular protrusion is directly opposite to the inner side of the bottle cap body where the internal thread segment is located.

[0026] Through the above technical solution, the annular protrusion generates a squeezing force on the bottle mouth, and the bottle mouth with the external thread segment will be more tightly engaged with the internal thread segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the installation structure of the embodiment;

[0028] Figure 2 It is a schematic diagram of the structure explosion of the embodiment;

[0029] Figure 3 A schematic diagram of the matching structure between the bottle cap body and the bottle mouth of the embodiment;

[0030] Figure 4 is a schematic diagram of the cross-sectional structure between the bottle cap body and the bottle mouth of an embodiment;

[0031] Figure 5 for Figure 4 Enlarged view of part A.

[0032] Figure numerals: 1. bottle cap body; 2. bottle body; 3. bottle mouth; 4. internal thread section; 5. first connecting piece; 51. first protrusion; 52. first inclined guide surface; 53. first limiting surface; 6. external thread section; 7. second connecting piece; 71. second protrusion; 72. second inclined guide surface; 73. second limiting surface; 8. retaining wall; 81. sealing end; 9. sealing film; 10. accommodating space; 11. matching channel; 12. annular protrusion. DETAILED DESCRIPTION

[0033] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0034] A bottle cap assembly locking structure, see Figure 1 as well as Figure 2 The bottle cap body 1 mainly comprises a bottle cap main body 1, a bottle body 2 and a bottle mouth 3. The bottle mouth 3 is fixedly connected to the bottle body 2, and the bottle cap main body 1 is connected to the bottle mouth 3.

[0035] Among them, see Figure 2 , Figure 4 as well as Figure 5 The bottle cap body 1 is provided with an internal thread section 4 and a first connecting member 5. The first connecting member 5 is located at a side of the internal thread section 4 close to the bottle body 2.

[0036] See also Figure 2 as well as Figure 3 The first connecting member 5 includes a first protrusion 51 disposed in the bottle cap body 1, and the first protrusion 51 is provided with a first inclined guide surface 52 and a first limiting surface 53. The first protrusion 51 provided with the first inclined guide surface 52 and the first limiting surface 53 has an overall shape close to a triangular prism.

[0037] See also Figure 3 The number of the first protrusions 51 is more than two. In the embodiment, the number of the first protrusions 51 is four, and all the first protrusions 51 are distributed in a circular array on the inner side of the bottle cap body 1.

[0038] Among them, see Figure 2 , Figure 4 as well as Figure 5 An external thread section 6 and a second connecting member 7 are provided on the outer side wall of the bottle mouth 3. The second connecting member 7 is located between the external thread section 6 and the bottle body 2.

[0039] See also Figure 2 as well as Figure 3 The second connecting member 7 includes a second protrusion 71 disposed on the outer wall of the bottle mouth 3, and the second protrusion 71 is provided with a second inclined guide surface 72 and a second limiting surface 73. The overall shape of the second protrusion 71 provided with the second inclined guide surface 72 and the second limiting surface 73 is also close to a triangular prism.

[0040] See also Figure 3 The number of the second protrusions 71 is more than two, and the number of the second protrusions 71 in the embodiment is also four, and all the second protrusions 71 are distributed in a circular array on the outer side wall of the bottle mouth 3.

[0041] See also Figure 5 The internal thread section 4 can be threadably matched with the external thread section 6.

[0042] See also Figure 4 as well as Figure 5 An annular retaining wall 8 is provided in the bottle cap body 1. The retaining wall 8 is located at the inner end of the bottle cap body 1 as a sealing end 81, and a sealing film 9 is provided on the sealing end 81. A receiving space 10 for receiving materials is formed between the sealing film 9 and the retaining wall 8.

[0043] See also Figure 2 as well as Figure 4 A matching channel 11 is formed between the retaining wall 8 and the inner side wall of the bottle cap body 1 provided with the internal thread section 4 , and the bottle mouth 3 can enter into the matching channel 11 .

[0044] The sealing end 81 extends between the internal thread section 4 and the first connecting member 5 .

[0045] See also Figure 4 as well as Figure 5 The side wall of the retaining wall 8 close to the accommodating space 10 is provided with an annular protrusion 12. The protruding direction of the annular protrusion 12 is just opposite to the inner side position of the bottle cap body 1 where the internal thread section 4 is located.

[0046] In actual use:

[0047] (1) The process of installing the bottle cap body 1 into the bottle mouth 3 is that the bottle cap body 1 covers the bottle mouth 3, the bottle mouth 3 is inserted into the matching channel 11, the internal thread section 4 and the external thread section 6 are screwed into each other in a positive direction, the bottle cap body 1 is gradually moved toward the side of the bottle body 2, the first inclined guide surface 52 and the second inclined guide surface 72 are in contact with each other, the bottle cap body 1 can be smoothly screwed into the bottle mouth 3, and the annular protrusion 12 abuts against the side wall of the bottle mouth 3;

[0048] (2) When the internal thread section 4 and the external thread section 6 are screwed out in opposite directions, the first limiting surface 53 and the second limiting surface 73 conflict with each other, thereby limiting the bottle cap body 1 from being screwed out of the bottle mouth 3.

[0049] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A locking structure for a bottle cap assembly, comprising a bottle cap body (1), a bottle body (2), and a bottle mouth (3) connected to the bottle body (2), wherein the bottle cap body (1) is provided with an internal thread section (4) and a first connecting member (5), and an external thread section (6) and a second connecting member (7) are provided on the outer wall of the bottle mouth (3), wherein the internal thread section (4) can be threadedly matched with the external thread section (6), and the second connecting member (7) is located between the external thread section (6) and the bottle body (2), wherein: The first connecting member (5) comprises a first protrusion (51) arranged in the bottle cap body (1), and the first protrusion (51) is provided with a first inclined guide surface (52) and a first limiting surface (53); The second connecting member (7) comprises a second protrusion (71) arranged on the outer side wall of the bottle mouth (3), and the second protrusion (71) is provided with a second inclined guide surface (72) and a second limiting surface (73); When the internal thread section (4) and the external thread section (6) are screwed into each other in a positive direction, the bottle cap body (1) gradually moves toward the side of the bottle body (2), the first inclined guide surface (52) and the second inclined guide surface (72) contact and fit each other, and the bottle cap body (1) can be smoothly screwed into the bottle mouth (3); When the internal thread section (4) and the external thread section (6) are screwed out in opposite directions, the first limiting surface (53) and the second limiting surface (73) abut against each other, thereby limiting the bottle cap body (1) from being screwed out of the bottle mouth (3).

2. The locking structure of a bottle cap assembly according to claim 1, characterized in that: The number of the first protrusions (51) is more than two, and all the first protrusions (51) are evenly distributed on the inner side of the bottle cap body (1).

3. A bottle cap assembly locking structure according to claim 1 or 2, characterized in that: The number of the second protrusions (71) is more than two, and all the second protrusions (71) are evenly distributed on the outer side wall of the bottle mouth (3).

4. The locking structure of a bottle cap assembly according to claim 1, characterized in that: The bottle cap body (1) is provided with an annular retaining wall (8), the retaining wall (8) being located at the inner end of the bottle cap body (1) as a sealing end (81), a sealing film (9) being provided on the sealing end (81), a containing space (10) for containing materials being formed between the sealing film (9) and the retaining wall (8), a matching channel (11) being formed between the retaining wall (8) and the inner side wall of the bottle cap body (1) provided with the internal thread section (4), and the bottle mouth (3) being able to enter into the matching channel (11).

5. The locking structure of a bottle cap assembly according to claim 4, characterized in that: The sealing end (81) extends between the internal thread section (4) and the first connecting member (5).

6. The locking structure of a bottle cap assembly according to claim 4, characterized in that: An annular protrusion (12) is provided on the side wall of the retaining wall (8) close to the accommodating space (10).

7. The locking structure of a bottle cap assembly according to claim 6, characterized in that: The protruding direction of the annular protrusion (12) is directly opposite to the inner side of the bottle cap body (1) where the internal thread section (4) is located.

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