Bottle cap structure

Abstract

The invention discloses a bottle cap structure, which belongs to the technical field of bottle caps. It comprises a bottle cap body and an anti-theft ring, the anti-theft ring being fixedly connected to the bottom end of the bottle cap body, an inner screw cap being fixedly connected inside the bottle cap body, an inner side wall of the inner screw cap being provided with a screw cap thread line, and a bottle body tray docking module being provided below the anti-theft ring. In the invention, a tray docking shell moves downward outside a bottle mouth part of the bottle and tightly wraps a tray part on a bottle surface from the outside, an edge docking bridge is only connected to an edge part of the bottom of the anti-theft ring, and force expansion of the tray docking shell and the anti-theft ring will cause multiple edge docking bridges to directly break, thereby preventing the bottle cap body, the anti-theft ring and the bottle body tray docking module from being disengaged from the bottle mouth part as a whole after force expansion, and four anti-detachment filling strips are inserted into vertical docking grooves on the threaded part of the bottle mouth part and the screw cap thread line inside the bottle cap body, so as to lock the bottle cap body, the anti-theft ring and the bottle body tray docking module on the bottle.

Description

Technical Field

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

[0002] The plastic beverage bottle cap is screwed onto the mouth of the beverage bottle to seal the beverage bottle. The bottle cap body of the plastic beverage bottle cap is connected to the anti-theft ring through a plurality of thin connecting bridges. The bottle cap body and the anti-theft ring are connected to the bottle mouth of the beverage bottle from the outside. The anti-destruction and anti-theft effects are achieved by breaking the connecting bridge when the bottle cap is opened. After the bottle cap body is combined with the bottle, the anti-theft ring is positioned on a tray that protrudes outward from the surface of the bottle. The anti-theft ring and the tray are in a separated state. The anti-theft ring is expanded by applying force from the inside of the anti-theft ring through the gap between the anti-theft ring and the tray. It is easy to remove the bottle cap body and the anti-theft ring from the bottle without breaking the connecting bridge, and replace the liquid inside the bottle to counterfeit. It is impossible to effectively prevent malicious destruction and counterfeiting of plastic beverage bottle caps by relying only on the anti-theft ring and a set of connecting bridges. At the same time, when the anti-theft ring and the bottle cap body are expanded from the inside to be removed as a whole, the open parts of the anti-theft ring and the bottle cap body are easily deformed, causing the anti-theft ring and the bottle cap body that are reinstalled after counterfeiting to become loose on the bottle, affecting the safe use of the bottle and the bottle cap. Summary of the invention

[0003] The object of the present invention is to provide a bottle cap structure to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A bottle cap structure comprises a bottle cap body and an anti-theft ring, wherein the anti-theft ring is fixedly connected to the bottom end of the bottle cap body, an inner screw cap is fixedly connected inside the bottle cap body, an inner side wall of the inner screw cap is provided with a screw cap thread line, a bottle body tray docking module is provided below the anti-theft ring, the bottle body tray docking module comprises a tray docking shell, an edge docking bridge and a combination ring, the tray docking shell is positioned below the anti-theft ring through a plurality of edge docking bridges, the tray docking shell wraps the bottle mouth part from the outside to support the tray part of the anti-theft ring, the tray docking shell and the anti-theft ring are expanded under force to cause the edge docking bridge to break to protect the bottle cap body, the The anti-theft ring and the bottle body tray docking module are integrally disengaged from the bottle mouth part; a locking anti-slip module is provided on the inner side of the anti-theft ring, and the locking anti-slip module includes a connecting shell, an anti-slip filling strip and a combined skirt, the connecting shell is positioned on the inner side of the anti-theft ring through the combined skirt, the number of the anti-slip filling strips is four, and the four anti-slip filling strips are fixedly connected to the top of the connecting shell in a ring shape, the anti-slip filling strips are inserted into the threaded part of the screw cap thread line and the bottle mouth part to lock the bottle cap body to the bottle mouth part, and the anti-slip filling strip follows the rotation of the connecting shell and the tray docking shell to disengage from the screw cap thread line to open the bottle cap body.

[0006] Furthermore, a plurality of connection bridges distributed in a ring shape are fixedly connected to the top of the anti-theft ring, and the top ends of the connection bridges are fixedly connected to the bottom ends of the inner rotating caps.

[0007] Furthermore, a connecting ring is fixedly connected to the top of the anti-theft ring, the connecting ring is located inside the connecting bridge, the inner wall of the connecting bridge is fixedly connected to the outer wall of the connecting ring, and the top of the connecting ring is tightly attached to the bottom end of the inner rotating cover.

[0008] Furthermore, a plurality of edge docking bridges are fixedly connected to the top of the tray docking shell in a ring shape, and the top of the edge docking bridge is fixedly connected to the outer edge of the bottom of the anti-theft ring.

[0009] Furthermore, the combination ring is fixedly connected to the top of the tray docking shell, the combination ring is located on the inner side of the edge docking bridge, the inner wall of the edge docking bridge is fixedly connected to the outer wall of the combination ring, and the top of the combination ring does not contact the bottom of the anti-theft ring.

[0010] Furthermore, the combined skirt is fixedly connected to the outer side wall of the connecting shell, and the outer edge portion of the combined skirt is fixedly connected to the inner side wall of the combined ring.

[0011] Furthermore, the connection shell is snap-connected to the inner side of the anti-theft ring, and the outer side wall of the connection shell has a bucket-shaped surface, and the bucket-shaped surface is tightly attached to the inner side wall of the connection ring.

[0012] Furthermore, four vertical docking grooves corresponding to the anti-slip filling strips are opened inside the screw cap thread line, and the anti-slip filling strips are inserted into the vertical docking grooves. A matching space is formed between the inner screw cap and the screw cap thread line, and the anti-slip filling strip that slips out of the screw cap thread line is positioned inside the matching space.

[0013] Furthermore, a bottle mouth inner plug is fixedly connected inside the bottle cap body, and an outer side wall of the bottle mouth inner plug is fixedly connected to the inner screw cap.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides a bottle body tray docking module connected to the bottom of the anti-theft ring. The tray docking shell can move down outside the bottle mouth part of the bottle and tightly wrap the tray part of the bottle surface from the outside when the bottle cap body and the anti-theft ring are combined with the bottle. The edge docking bridge is only connected to the edge part of the bottom of the anti-theft ring. The tray docking shell and the anti-theft ring are forced to expand, which will cause multiple edge docking bridges to break directly, thereby preventing the bottle cap body, the anti-theft ring and the bottle body tray docking module from being disengaged from the bottle mouth part as a whole after being forced to expand. Four anti-detachment filling strips are inserted into the bottle mouth part of the bottle. The threaded portion and the vertical docking groove on the screw-capping thread line on the inner side of the bottle cap body achieve the effect of locking the bottle cap body, the anti-theft ring and the bottle body tray docking module on the bottle, and the tail of the anti-detachment filling strip is bent into the gap between the threaded portion and the screw-capping thread line, and the edge docking bridge is broken and the connecting shell is rotated half a circle. The anti-detachment filling strip is completely removed from the vertical docking groove to open the bottle cap body, which can effectively avoid malicious damage and counterfeiting of the bottle cap, and avoid the bottle cap body, the anti-theft ring and the bottle body tray docking module from being deformed on the bottle to become loose, thereby ensuring the safe use of the bottle and the bottle cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution in the embodiment, the drawings in the embodiment are briefly introduced below.

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 4 It is a schematic diagram of the partially separated structure of the present invention;

[0021] Figure 5 It is a cross-sectional structural schematic diagram of the present invention in use;

[0022] In the figure: 1. Bottle cap body; 11. Inner screw cap; 12. Screw cap thread; 121. Vertical docking groove; 13. Inner plug of bottle mouth; 14. Matching space; 2. Anti-theft ring; 21. Connecting bridge; 22. Connecting ring; 3. Bottle body tray docking module; 31. Tray docking shell; 32. Edge docking bridge; 33. Combination ring; 4. Locking and anti-slipping module; 41. Connecting shell; 411. Bucket-shaped surface; 42. Anti-slipping filling strip; 43. Combined skirt. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solution in the embodiment of the present invention in conjunction with the accompanying drawings in the embodiment of the present invention. Figures 1 to 5 The detailed description of the structure will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0024] See also Figure 1 to Figure 5 In an embodiment of the present invention, a bottle cap structure includes a bottle cap body 1 and an anti-theft ring 2, the anti-theft ring 2 is fixedly connected to the bottom end of the bottle cap body 1, an inner screw cap 11 is fixedly connected inside the bottle cap body 1, and a screw cap thread line 12 is arranged on the inner side wall of the inner screw cap 11, and a bottle body tray docking module 3 is arranged below the anti-theft ring 2, the bottle body tray docking module 3 includes a tray docking shell 31, an edge docking bridge 32 and a combination ring 33, the tray docking shell 31 is positioned below the anti-theft ring 2 through a plurality of edge docking bridges 32, the tray docking shell 31 wraps the bottle mouth part from the outside to support the tray part of the anti-theft ring 2, the tray docking shell 31 and the anti-theft ring 2 are expanded by force to cause the edge docking bridge 32 to break to protect The bottle cap body 1, the anti-theft ring 2 and the bottle body tray docking module 3 are integrally detached from the bottle mouth part. A locking anti-detachment module 4 is provided on the inner side of the anti-theft ring 2. The locking anti-detachment module 4 includes a connecting shell 41, an anti-detachment filling strip 42 and a combined skirt 43. The connecting shell 41 is positioned on the inner side of the anti-theft ring 2 through the combined skirt 43. There are four anti-detachment filling strips 42. The four anti-detachment filling strips 42 are fixedly connected to the top of the connecting shell 41 in a ring shape. The anti-detachment filling strips 42 are inserted into the screw thread line 12 and the threaded part of the bottle mouth part to lock the bottle cap body 1 at the bottle mouth part. The anti-detachment filling strips 42 follow the connecting shell 41 and the tray docking shell 31 to rotate and detach from the screw thread line 12 to open the bottle cap body 1.

[0025] The anti-theft ring 2 is arranged below the bottle cap body 1. The top of the anti-theft ring 2 is fixedly connected with a plurality of connecting bridges 21 distributed in an annular shape. The top of the connecting bridge 21 is fixedly connected with the bottom end of the inner screw cap 11. The anti-theft ring 2 is stably connected to the bottom end of the bottle cap body 1 through the plurality of connecting bridges 21. The top of the anti-theft ring 2 is fixedly connected with a connecting ring 22. The connecting ring 22 is located on the inner side of the connecting bridge 21. The inner side wall of the connecting bridge 21 is fixedly connected with the outer side wall of the connecting ring 22. The connecting ring 22 is combined with a plurality of connecting bridges 21, so that the plurality of connecting bridges 21 are broken in sequence when the bottle cap body 1 is rotated and opened. The top of the connecting ring 22 is close to the bottom end of the inner screw cap 11, so that the bottle cap body 1 can be smoothly rotated and opened. The bottle cap body 1 and the anti-theft ring 2 are connected to the bottle mouth of the beverage bottle from the outside. The anti-theft ring 2 moves down on the outer side of the bottle mouth and is positioned on a tray protruding outward from the bottle surface. The bottle cap body 1 and the anti-theft ring 2 are combined on the bottle.

[0026] The bottle cap body 1 is fixedly connected with an inner screw cap 11, and the inner side wall of the inner screw cap 11 is provided with a screw cap thread 12, which cooperates with the threaded portion of the bottle mouth to tighten the bottle cap body 1 on the bottle mouth. The bottle cap body 1 is fixedly connected with a bottle mouth inner plug 13, and the outer side wall of the bottle mouth inner plug 13 is fixedly connected with the inner screw cap 11. The bottle mouth inner plug 13 can be plugged into the bottle mouth when the bottle cap body 1 is screwed on the bottle mouth, thereby improving the sealing effect of the bottle.

[0027] A bottle body pallet docking module 3 is provided below the anti-theft ring 2. The bottle body pallet docking module 3 is composed of a pallet docking shell 31, an edge docking bridge 32 and a combination ring 33. Several edge docking bridges 32 are fixedly connected to the top of the pallet docking shell 31 in an annular shape. The combination ring 33 is fixedly connected to the top of the pallet docking shell 31. The combination ring 33 is located on the inner side of the edge docking bridge 32. The inner side wall of the edge docking bridge 32 is fixedly connected to the outer side wall of the combination ring 33, and the pallet docking shell 31, the combination ring 33 and several edge docking bridges 32 are stably combined. The top of the edge docking bridge 32 is fixedly connected to the outer edge of the bottom of the anti-theft ring 2, so that the pallet docking shell 31 is positioned directly below the anti-theft ring 2 through several edge docking bridges 32. The bottle body pallet docking module 3 is integrally positioned and connected below the anti-theft ring 2. When the bottle cap body 1 and the anti-theft ring 2 are combined with the bottle from the outside of the bottle mouth, the bottle body pallet docking module 3 can move vertically downward along with the anti-theft ring 2 on the outside of the bottle mouth, changing the position of the bottle body pallet docking module 3 on the outside of the bottle. The pallet docking shell 31 moves vertically downward close to the protruding pallet portion of the bottle surface. The bottom of the pallet docking shell 31 deforms after contacting the pallet from above, allowing the pallet docking shell 31 to tightly wrap the pallet portion of the bottle surface from the outside, positioning the bottle body pallet docking module 3 to the outside of the pallet on the bottle surface. After the bottle body pallet docking module 3 is positioned, the anti-theft ring 2 can be positioned above the pallet portion, thus connecting the pallet portion of the bottle surface and positioning the anti-theft ring 2. The edge docking bridge 32 only connects the edge part of the bottom of the anti-theft ring 2, so that the tray docking shell 31 and the anti-theft ring 2 are expanded under force, which will cause multiple edge docking bridges 32 to break directly, thereby preventing the bottle cap body 1, the anti-theft ring 2 and the bottle body tray docking module 3 from escaping from the bottle mouth as a whole after being expanded under force.

[0028] The inner side of the anti-theft ring 2 is provided with a locking and anti-slipping module 4, which is composed of a connecting shell 41, an anti-slipping filling strip 42 and a combined skirt 43. The combined skirt 43 is fixedly connected to the outer side wall of the connecting shell 41. There are four anti-slipping filling strips 42, which are fixedly connected to the top of the connecting shell 41 in an annular shape, and stably combine the connecting shell 41, the four anti-slipping filling strips 42 and the combined skirt 43. The outer edge of the combined skirt 43 is fixedly connected to the inner side wall of the combined ring 33, and the connecting shell 41 is snap-connected to the inner side of the anti-theft ring 2, and the connecting shell 41 is positioned on the inner side of the anti-theft ring 2 through the combined skirt 43. Four vertical docking grooves 121 corresponding to the anti-slip filling strips 42 are provided inside the screw cap thread line 12, and the anti-slip filling strips 42 are inserted inside the vertical docking grooves 121. The bottle mouth part of the bottle has a threaded portion matching the screw cap thread line 12, and the threaded portion has a vertical matching groove corresponding to the vertical docking groove 121, so that the anti-slip filling strip 42 can be inserted into the corresponding vertical docking groove 121 and the vertical matching groove, and the anti-slip filling strip 42 can be positioned. The anti-slip filling strip 42 fills the vertical docking groove 121 and the vertical matching groove, and the four anti-slip filling strips 42 are positioned at four positions on the screw cap thread line 12 and the threaded portion. When the screw cap thread line 12 follows the inner screw cap 11 and the bottle cap body 1 to rotate outside the threaded portion, the four anti-slip filling strips 42 can simultaneously block the screw cap thread line 12 at four positions, so that the screw cap thread line 12 cannot rotate outside the threaded portion, thereby achieving the effect of locking the bottle cap body 1, the anti-theft ring 2 and the bottle body tray docking module 3 on the bottle. A matching space 14 is formed between the inner screw cap 11 and the screw cap thread line 12, the threaded portion can be coupled to the inside of the matching space 14, and the bent portion of the tail of the anti-slip filling strip 42 enters the inside of the matching space 14. When the bottle cap body 1 is coupled to the bottle mouth, the bent portion of the tail of the anti-slip filling strip 42 enters the gap between the lowest part of the threaded portion and the lowest part of the screw cap thread line 12, which can strengthen the coupling effect between the bottle cap body 1 and the bottle and improve the anti-slip protection of the bottle cap body 1. After the edge docking bridge 32 is broken, rotating the tray docking shell 31 half a circle can allow the connecting shell 41 to follow the tray docking shell 31, and rotate between the anti-theft ring 2 and the bottle along the inner side wall of the anti-theft ring 2. The four anti-slip filling strips 42 rotate inside the inner screw cap 11 following the connecting shell 41, which is conducive to changing the position and state of the anti-slip filling strips 42. The change in position and state of the anti-slip filling strip 42 can allow the anti-slip filling strip 42 to completely slip out of the vertical docking groove 121. At the same time, the anti-slip filling strip 42 that slips out of the screw cap thread line 12 is tightly positioned in the gap between the lowest part of the thread part and the lowest part of the screw cap thread line 12. The bottle cap body 1 rotates, and the connecting bridge 21 breaks to open the bottle cap body 1, which can effectively avoid malicious damage and counterfeiting of the bottle cap, and prevent the bottle cap body 1, the anti-theft ring 2 and the bottle body tray docking module 3 from deforming on the bottle to become loose, thereby improving the safe use of the bottle and the bottle cap.

[0029] The outer wall of the connecting shell 41 is in close contact with the inner wall of the anti-theft ring 2. The outer wall of the connecting shell 41 has a bucket-shaped surface 411. The bucket-shaped surface 411 is in close contact with the inner wall of the connecting ring 22, so that the connecting shell 41 can be in close contact with the inner wall of the anti-theft ring 2 and the inner wall of the connecting ring 22 on the inner side of the anti-theft ring 2 and rotate with the tray docking shell 31, thereby improving the stability of the connecting shell 41 during the rotation operation. The top of the combination ring 33 does not contact the bottom of the anti-theft ring 2, so that the tray docking shell 31 can smoothly rotate under the anti-theft ring 2 after the edge docking bridge 32 breaks.

[0030] The working principle of the present invention is as follows: the bottle cap body 1 and the anti-theft ring 2 are connected to the bottle from the outside of the bottle mouth part, the tray docking shell 31 moves vertically downward along with the anti-theft ring 2 on the outside of the bottle mouth part, the tray docking shell 31 moves vertically downward close to the tray part protruding from the bottle surface, the bottom of the tray docking shell 31 contacts the tray from above and deforms, so that the tray docking shell 31 tightly wraps the tray part on the bottle surface from the outside, the tray docking shell 31 is positioned to the outside of the tray on the bottle surface, the anti-theft ring 2 is positioned above the tray part, the edge docking bridge 32 connects the edge part of the bottom of the anti-theft ring 2, and when the tray docking shell 31 and the anti-theft ring 2 are expanded by force, the multiple edge docking bridges 32 are directly broken, and the four anti-slip filling strips 42 fill the four vertical docking grooves 1 on the screw cap thread line 12. 21 is a vertical matching groove corresponding to the threaded part of the bottle, and the four anti-slip filling strips 42 block the screw cap thread line 12 at four positions at the same time, so that the screw cap thread line 12 combined with the bottle mouth part cannot rotate on the outside of the threaded part, and the bottle cap body 1, the anti-theft ring 2 and the bottle body tray docking module 3 are locked on the bottle. After the edge docking bridge 32 breaks, rotate the tray docking shell 31 half a circle to let the connecting shell 41 follow the tray docking shell 31, and rotate along the inner side wall of the anti-theft ring 2 between the anti-theft ring 2 and the bottle. The four anti-slip filling strips 42 follow the connecting shell 41 to rotate on the inner side of the inner screw cap 11 to slip out of the screw cap thread line 12, and the anti-slip filling strips 42 are tightly positioned in the gap between the lowest part of the threaded part and the lowest part of the screw cap thread line 12. The bottle cap body 1 rotates, and the connecting bridge 21 breaks to open the bottle cap body 1.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bottle cap structure, comprising a bottle cap body (1) and an anti-theft ring (2), wherein the anti-theft ring (2) is fixedly connected to the bottom end of the bottle cap body (1), characterized in that: An inner screw cap (11) is fixedly connected to the bottle cap body (1), and the inner side wall of the inner screw cap (11) is provided with a screw cap thread (12). A bottle body tray docking module (3) is provided below the anti-theft ring (2), and the bottle body tray docking module (3) comprises a tray docking shell (31), an edge docking bridge (32) and a combination ring (33). The tray docking shell (31) is positioned below the anti-theft ring (2) through a plurality of edge docking bridges (32). The tray docking shell (31) wraps around the bottle mouth from the outside to support the tray part of the anti-theft ring (2). The tray docking shell (31) and the anti-theft ring (2) are expanded by force to cause the edge docking bridge (32) to break, thereby protecting the bottle cap body (1), the anti-theft ring (2) and the bottle body tray docking module (3) from being detached from the bottle mouth as a whole. A locking and anti-slipping module (4) is provided inside the anti-theft ring (2). The locking and anti-slipping module (4) comprises a connecting shell (41), an anti-slipping filling strip (42) and a combined skirt (43). The connecting shell (41) is positioned inside the anti-theft ring (2) through the combined skirt (43). There are four anti-slipping filling strips (42). The four anti-slipping filling strips (42) are fixedly connected to the top of the connecting shell (41) in an annular shape. The anti-slipping filling strips (42) are inserted into the inside of the screw cap thread (12) and the threaded part of the bottle mouth to lock the bottle cap body (1) at the bottle mouth. The anti-slipping filling strips (42) rotate along with the connecting shell (41) and the tray docking shell (31) to slip out of the inside of the screw cap thread (12) to open the bottle cap body (1).

2. A bottle cap structure according to claim 1, characterized in that: A plurality of connection bridges (21) distributed in a ring shape are fixedly connected to the top of the anti-theft ring (2), and the top ends of the connection bridges (21) are fixedly connected to the bottom ends of the inner rotating caps (11).

3. A bottle cap structure according to claim 2, characterized in that: A connecting ring (22) is fixedly connected to the top of the anti-theft ring (2); the connecting ring (22) is located inside the connecting bridge (21); the inner wall of the connecting bridge (21) is fixedly connected to the outer wall of the connecting ring (22); and the top end of the connecting ring (22) is tightly attached to the bottom end of the inner rotating cover (11).

4. A bottle cap structure according to claim 1, characterized in that: A plurality of edge docking bridges (32) are fixedly connected to the top of the tray docking shell (31) in a ring shape, and the top of the edge docking bridge (32) is fixedly connected to the outer edge of the bottom of the anti-theft ring (2).

5. The bottle cap structure according to claim 1, characterized in that: The combination ring (33) is fixedly connected to the top of the tray docking shell (31), the combination ring (33) is located inside the edge docking bridge (32), the inner side wall of the edge docking bridge (32) is fixedly connected to the outer side wall of the combination ring (33), and the top of the combination ring (33) does not contact the bottom of the anti-theft ring (2).

6. The bottle cap structure according to claim 1, characterized in that: The combined skirt (43) is fixedly connected to the outer side wall of the connecting shell (41), and the outer edge portion of the combined skirt (43) is fixedly connected to the inner side wall of the combined ring (33).

7. The bottle cap structure according to claim 3, characterized in that: The connecting shell (41) is snap-connected to the inner side of the anti-theft ring (2); the outer side wall of the connecting shell (41) has a bucket-shaped surface (411); and the bucket-shaped surface (411) is in close contact with the inner side wall of the connecting ring (22).

8. The bottle cap structure according to claim 1, characterized in that: Four vertical docking grooves (121) corresponding to the anti-dropping filling strips (42) are formed inside the screw cap thread line (12); the anti-dropping filling strips (42) are inserted into the vertical docking grooves (121); a matching space (14) is formed between the inner screw cap (11) and the screw cap thread line (12); the anti-dropping filling strip (42) that has dropped out of the screw cap thread line (12) is positioned inside the matching space (14).

9. The bottle cap structure according to claim 1, characterized in that: A bottle mouth inner plug (13) is fixedly connected inside the bottle cap body (1), and an outer side wall of the bottle mouth inner plug (13) is fixedly connected to the inner screw cap (11).

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