Anti-theft bottle cap

Abstract

The present invention relates to an anti-theft bottle cap, and the technical scheme thereof is as follows: the upper cover is rotatably connected with the lower cover; the lower cover radially protrudes outward to form at least one protrusion; a notch structure corresponding to the number of protrusions is provided at the edge of the annular skirt; the first end of the anti-theft block is hinged to the first side wall of the notch structure and the second end of the anti-theft block extends into the upper cover; a connecting bridge is provided on the second side wall of the notch structure opposite to the first side wall, and the connecting bridge is also fixedly connected to the second end of the anti-theft block; in the process of the upper cover rotating away from the lower cover along a preset direction relative to the lower cover, the protrusion is displaced from the first position to the second position relative to the upper cover, so that the protrusion contacts the connecting bridge and breaks the connecting bridge. Effect: First, since the protrusion, the connecting bridge and the anti-theft block of the lower cover are mutually avoided in the axial direction at the initial position, it is sufficient to press the upper cover with a manipulator or a clamping claw to make the upper cover and the lower cover thread cooperate, thereby simplifying the processing technology.

Description

Technical Field

[0001] The invention relates to a bottle cap, and more particularly to an anti-theft bottle cap. Background Art

[0002] Anti-theft bottle caps are a common packaging form for bottle packaging and are widely used in daily life. Their sealing and anti-theft features can ensure the safety of food in the bottle. Consumers can check from the outside whether the anti-theft structure of the anti-theft bottle cap has been damaged, and then determine whether the bottle cap has been opened.

[0003] The existing rotating connection bottle caps, such as the mineral water caps on the market, are fixed to the bottle mouth by a threaded connection, and the bottle mouth thread is integrally formed with the bottle body. Therefore, when the cap is unscrewed, the bottle cap can be easily opened along the thread, and the anti-theft ring is automatically disconnected and remains on the bottleneck. This type of structure is simple and can be easily imitated by counterfeiters.

[0004] In addition, due to the complex structure of the existing anti-theft bottle caps, the upper cover and the lower cover need to be injection molded as one piece, and the upper cover and the lower cover cannot be produced separately and then combined, resulting in high mold manufacturing costs, high production costs, and high defective rates.

[0005] In summary, the anti-theft bottle caps in the prior art have the problems that some structures are too simple and easy to be imitated; while some structures are complicated and the manufacturing cost is high, and the upper cover and the lower cover can only be produced in an integrated manner during production. Summary of the invention

[0006] In view of the shortcomings of the prior art, the object of the present invention is to provide an anti-theft bottle cap, which has the advantages of being able to be opened repeatedly and having an upper cover and a lower cover that can be detachably assembled.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: an anti-theft bottle cap, comprising an upper cover and a lower cover; the upper cover is rotatably connected to the lower cover; the lower cover radially protrudes outward to form at least one protrusion; an annular skirt extending downward is provided at the edge of the upper cover; a notch structure having the same number as at least one of the protrusions is provided at the edge of the annular skirt; an anti-theft block is provided on the annular skirt; a first end of the anti-theft block is hinged to a first side wall of the notch structure and a second end of the anti-theft block extends into the upper cover; a connecting bridge is provided on a second side wall of the notch structure opposite to the first side wall, and the connecting bridge is also fixedly connected to the second end of the anti-theft block;

[0008] When the upper cover rotates away from the lower cover along a preset direction relative to the lower cover, when the protrusion moves from the first position to the second position relative to the upper cover, the protrusion contacts the connection bridge and breaks the connection bridge.

[0009] Optionally, the upper cover portion includes an upper cover and a circular platform; the circular platform is arranged at the lower edge of the upper cover; the annular skirt is formed by extending downward from the edge of the circular platform; a limit block extending downward is also arranged on the circular platform, and the limit block is arranged at a position adjacent to the hinge of the anti-theft block and the notch structure;

[0010] When the upper cover portion is rotated away from the lower cover portion along a preset direction relative to the lower cover portion, when the protrusion is displaced from the second position to the third position relative to the upper cover portion, the protrusion pushes the anti-theft block so that the anti-theft block rotates around the first side wall and is pressed between the limit block and the inner wall of the annular skirt.

[0011] Optionally, the inner wall of the annular skirt protrudes radially inward to form a protective protrusion adjacent to the first side wall and used to prevent the anti-theft block from flipping out between the limit block and the annular skirt, and the protective protrusion is arranged in a one-to-one correspondence with the notch structure; when the anti-theft block is located between the limit block and the annular skirt, the anti-theft block is also located between the corresponding first side wall and the protective protrusion.

[0012] Optionally, the inner wall of the annular skirt protrudes radially inward to form a stop rib adjacent to the second side wall and used to prevent the protrusion from over-rotating, and the stop rib is arranged in a one-to-one correspondence with the protrusion.

[0013] Optionally, an inclined section is provided on the side of the limit block close to the axis of the lower cover, and the distance between the end of the inclined section close to the circular platform and the axis of the lower cover is smaller than the distance between the end of the inclined section away from the circular platform and the axis of the lower cover.

[0014] Optionally, the outer wall of the upper cover is provided with anti-slip ribs.

[0015] Optionally, when the protrusion rotates along a preset direction to a position corresponding to the limiting block, the protrusion and the limiting block are horizontally misaligned.

[0016] Optionally, anti-sheathing ribs are provided in the lower cover portion.

[0017] Optionally, the sum of the depression depth of the protective protrusion and the protrusion length of the bump is smaller than the radial distance from the lower cover portion to the annular skirt.

[0018] In summary, the present invention has the following beneficial effects:

[0019] Firstly, by setting an assembly pressing force on the internal thread of the upper cover and the external thread of the lower cover, the internal thread of the upper cover and the external thread of the lower cover can be pressed by a manipulator or a clamping claw to make the upper cover and the lower cover threads match. In addition, since the protrusion, the connecting bridge and the anti-theft block of the lower cover avoid each other in the axial direction at the initial position, it is sufficient to press the upper cover part with a manipulator or a clamping claw to make the upper cover and the lower cover threads match, so that there is no need for rotation assembly, which can simplify the processing technology.

[0020] Secondly, the anti-theft block of the present application is located inside the upper cover, making it difficult to damage the anti-theft block from the outside.

[0021] Thirdly, by setting the limit block, the anti-theft block of the present application can be clamped between the limit block and the annular skirt after being broken, so that the upper cover of the present application can be repeatedly opened and closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the upper cover portion (the connecting bridge is not broken) in this embodiment;

[0023] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0024] Figure 3 is a schematic structural diagram of the upper cover portion (the connecting bridge has been broken) in this embodiment;

[0025] Figure 4 is a schematic diagram of the connection relationship between the connecting bridge and the anti-theft block in this embodiment;

[0026] Figure 5 Schematic diagram of the position relationship between the protrusion at the first position and the upper cover portion in this embodiment

[0027] Figure 6 Schematic diagram of the lower cover structure in this embodiment;

[0028] Figure 7 is a schematic diagram of external observation of the upper cover portion (the connecting bridge has been broken) in this embodiment;

[0029] Figure 8 is a schematic diagram of external observation of the upper cover portion (the connecting bridge is not broken) in this embodiment;

[0030] Fig. 9 is a schematic diagram of the combination of the upper cover portion and the lower cover portion (the connecting bridge has been broken) in this embodiment;

[0031] Fig.10 It is a schematic diagram of the combination of the upper cover part and the lower cover part (the connecting bridge is not broken) in this embodiment.

[0032] In the figure: 1. upper cover; 11. upper cover; 12. circular platform; 121. limit block; 2. lower cover; 3. convex block; 4. annular skirt; 401. protective protrusion; 402. stop rib; 5. notch structure; 6. anti-theft block; 7. connecting bridge; 8. inclined section; 9. anti-skid rib. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] In order to make the structure of the upper cover 1 clearer in the drawings of the specification, Figures 1 to 5 The lower edge of the middle upper cover 1 is shown facing upward. It should be noted that the directions of the drawings in this application are only for illustrative purposes and do not represent the directions of the upper cover 1 when in use.

[0035] The present application provides an anti-theft bottle cap, such as Figure 1 , Figure 8 and Fig. 9 As shown, it includes an upper cover part 1 and a lower cover part 2. The upper cover part 1 is rotatably connected with the lower cover part 2. The lower cover part 2 radially protrudes outward to form at least one protrusion 3. The upper cover part 1 is provided with an annular skirt 4 extending downward. A notch structure 5 corresponding to the number of the protrusions 3 is provided at the lower edge of the annular skirt 4; an anti-theft block 6 is provided on the annular skirt 4; the first end of the anti-theft block 6 is hinged to the first side wall of the notch structure 5 and the second end extends into the upper cover part 1, and the second end of the anti-theft block 6 is connected to the second side wall of the notch structure 5 through a connecting bridge 7; the first side wall and the second side wall are opposite side walls; in the process of the upper cover part 1 rotating away from the lower cover part 2 along a preset direction relative to the lower cover part 2, the protrusion 3 is displaced from the first position to the second position relative to the upper cover part 1, so that the protrusion 3 contacts the connecting bridge 7 and breaks the connecting bridge 7.

[0036] See also Fig. 9 and Fig.10 The present application aims to invent an anti-theft bottle cap which can visually observe from the outside whether the upper cover 1 and the lower cover 2 have been opened, and the upper cover 1 and the lower cover 2 can be vertically pressed and assembled during assembly. Figure 6In the present application, at least one protrusion 3 is formed by radially protruding outward from the lower cover 2. When the upper cover 1 and the lower cover 2 are assembled, an assembly pressing force is set on the internal thread of the upper cover 1 and the external thread of the lower cover 2 (the setting of the pressing force is a conventional method for those skilled in the art), so that the internal thread of the upper cover 1 and the external thread of the lower cover can be pressed by a manipulator or a clamping claw to make the upper cover 1 cover the lower cover 2, and the threads of the upper cover 1 and the lower cover 2 match. In this process, the internal thread of the upper cover 1 and the external thread of the lower cover 2 will not be deformed. In addition, in the process of vertically pressing the upper cover 1 onto the lower cover 1, since the present application determines whether it has been opened by rotating the upper cover 1 to break the connecting bridge 7, see Figure 5 In the axial direction of the upper cover 1, the protrusion 3 of the lower cover 2 will not collide with the components in the upper cover 1 (such as the anti-theft block 6 and the connecting bridge 7) when vertically entering the upper cover 1, so that the protrusion 3 enters the first position, so that the anti-theft bottle cap of the present application avoids the complicated rotation assembly in the past and simplifies the processing technology. In addition, see Figure 1 to Figure 5 The connecting bridge 7 of the present application and the anti-theft block 6 are respectively connected to the second side wall and the first side wall opposite to the notch structure 5, and the second end of the anti-theft block 6 (the second end is the free end of the anti-theft block 6, and the first end is one end of the side wall of the hinged notch structure 5) extends into the upper cover 1. When the upper cover 1 rotates from the first position (the initial position of the upper cover 1 installed on the lower cover 2) to the second position along the preset direction (the preset direction is the opening direction, according to the design of the anti-theft bottle cap, it is to rotate counterclockwise or clockwise to open the cover) , The convex block 3 presses the connecting bridge 7 to make the second end of the anti-theft block 6 movable. At this time, it is possible to identify whether the upper cover 1 and the lower cover 2 have been opened by observing the connection state of the anti-theft block 6 and the connecting bridge 7 from the outside. And subsequently, the upper cover 1 can be separated from the threaded connection with the lower cover 2 by continuing to rotate the upper cover 1 along the preset direction. The above structure can ensure that the connecting bridge 7 and the anti-theft block 6 are always inside the upper cover 1, so that the connecting bridge 7 cannot be damaged from the outside, thereby improving the anti-theft effect of the present application and preventing the connecting bridge 7 from being damaged by human intervention.

[0037] In an alternative embodiment, reference Figure 1 to Figure 5The upper cover 1 includes an upper cover 11 and a circular platform 12. The circular platform 12 is arranged at the lower edge of the upper cover 11. The annular skirt 4 is a skirt extending downward from the circular platform 12. A downwardly extending limit block 121 is also arranged on the circular boss. The limit block 121 is located inside the annular skirt 4, and the limit block 121 is arranged at a position adjacent to the hinge between the anti-theft block 6 and the notch structure 5. The upper cover 1 can rotate relative to the lower cover 2 to drive the protrusion 3 to rotate from the second position to the third position along the preset direction, so that the protrusion 3 pushes the anti-theft block 6 to rotate around the first end of the anti-theft block 6 and press it into between the limit block 121 and the inner wall of the annular skirt 4. Since the anti-theft block 6 here is used to identify whether the upper cover 1 has been opened, when the connecting bridge 7 is disconnected, the anti-theft block 6 is not limited, and the anti-theft block 6 will affect the rotation opening and closing of the upper cover 1. Therefore, after the connecting bridge 7 connected to the anti-theft block 6 is broken, the present application limits the anti-theft block 6 between the limit block 121 and the annular skirt 4. Then the user can observe whether the anti-theft block 6 is seen from the outside, thereby identifying whether the upper cover 1 has been opened, which is better than observing whether the connecting bridge 7 is broken.

[0038] In an optional embodiment, the annular skirt 4 is radially recessed inward to form protective protrusions 401 corresponding to the number of the protrusions 3. Figure 3When the anti-theft block 6 is located between the stop block 121 and the annular skirt 4, the left and right sides of the anti-theft block 6 are respectively located between the protective protrusion 401 and the notch structure 5 (the notch structure 5 is the notch structure 5 on the annular skirt to which the anti-theft block 6 is hinged). Since the upper cover 1 and the lower cover 2 of the anti-theft bottle cap of the present application are connected by threads, the upper cover 1 and the lower cover 2 are not connected once, and the upper cover 1 can be detached from the lower cover 2 and then the upper cover 1 can be closed with the lower cover 2. Then even if the anti-theft block 6 is located between the limit block 121 and the inner wall of the annular skirt 4, when the upper cover 1 needs to close the lower cover 2, the upper cover 1 needs to rotate relative to the lower cover 2 to drive the protrusion 3 to rotate in the opposite direction of the preset direction. Then, during the rotation process, the protrusion 3 of the lower cover 2 will touch the second end of the anti-theft block 6, causing the protrusion 3 to drive the anti-theft block 6 to disengage from the position between the limit block 121 and the inner wall of the annular skirt 4. This situation will cause the anti-theft block 6 to be stuck between the upper cover 1 and the lower cover 2, resulting in the blocking of various parts, affecting the limit of the upper cover 1 and the lower cover 2. Therefore, the protective protrusion 401 of the present application, when the anti-theft block 6 is located between the limit block 121 and the annular skirt 4, makes the anti-theft block 6 located between the corresponding notch structure 5 and the protective protrusion 401, so that the protective protrusion 401 prevents the anti-theft block 6 from being pushed away from the limit block 121 and the inner wall of the annular skirt 4 during the process of the protrusion 3 rotating in the opposite direction of the preset direction. Preferably, the length of the protective protrusion 401 of the present application that is radially recessed from the annular skirt 4 is greater than the thickness of the anti-theft block 6, so that the protective protrusion 401 plays a role in fully protecting the anti-theft block 6.

[0039] Preferably, if Figure 6 The lower cover portion 2 of the present application is provided with two protrusions 3, the two protrusions 3 are symmetrically arranged on the side of the lower cover portion 2, and two corresponding notch structures 5 are opened on the annular skirt 4.

[0040] In an alternative embodiment, see Figure 1 to Figure 5 The annular skirt 4 is radially recessed inward to form stop ribs 402 corresponding to the number of the protrusions 3 for preventing the protrusions 3 from over-rotating, and the stop ribs 402 are arranged at positions adjacent to the hinges between the connecting bridge 7 and the notch structure 5. The setting of the stop ribs 402 can limit the protrusions 3 to cooperate with the corresponding notch structure 5, the anti-theft block 6, and the protective protrusion 401. The setting of the stop ribs 402 prevents the protrusions 3 from over-rotating. Preferably, in the present application, when two protrusions 3 are provided, the upper cover portion 1 rotates to rotate the protrusions 3 from the first position to the corresponding stop rib 402 position, and the upper cover portion 1 can just rotate out of the lower cover portion 2.

[0041] In an alternative embodiment, see Figure 1 and Figure 2, an inclined section 8 is provided on the side of the limit block 121 close to the axis of the lower cover, and the end of the inclined section 8 close to the annular platform 12 is closer to the axis of the lower cover than the end of the inclined section 8 away from the annular platform 12. Since the anti-theft block 6 needs to be pressed between the limit block 121 and the annular skirt 4, the present application makes it easier for the anti-theft block 6 to be stuck between the limit block 121 and the annular skirt 4. Figure 1 and Figure 2 As shown, an inclined section 8 is provided on the limit block 121, and after the anti-theft block 6 enters between the limit block 121 and the annular skirt 4, since the limit block 121 is close to the annular skirt 4 and no inclined section 8 is provided, the anti-theft block 6 of the present application is difficult to escape from the limit after being stuck between the limit block 121 and the annular skirt 4.

[0042] In an optional embodiment, the outer wall of the upper cover portion 1 is provided with anti-slip ribs 9, which increase the friction of the outer wall of the upper cover portion 1, thereby making it easier for the user to grasp the upper cover portion 1 and then rotate the upper cover portion 1.

[0043] In an optional embodiment, when the upper cover 1 rotates relative to the lower cover 2, so that the protrusion 3 rotates along the preset direction to a position corresponding to the stop block 121, the corresponding position is in the axial direction of the bottle cap, the connecting line between the stop block 121 and the protrusion 3 is parallel to the axial direction, and the protrusion 3 and the stop block 121 are horizontally misaligned, so that the protrusion 3 does not hit the stop block 121. Preferably, since the upper cover 1 will gradually turn away from the lower cover 2 when the upper cover 1 rotates along the preset direction, the upper cover 1 and the lower cover 2 will gradually misalign, then by setting the threads of the upper cover 1 and the lower cover 2 and the height of the stop block 121 protruding from the annular platform 12, when the protrusion 3 rotates along the preset direction to a position corresponding to the stop block 121, the protrusion 3 and the stop block 121 are horizontally misaligned, so that the protrusion 3 does not hit the stop block 121.

[0044] In an optional embodiment, anti-collision ribs are provided in the lower cover portion 2 to prevent the lower cover portions 2 from being nested and assembled with each other during batch transportation after the lower cover portions 2 are produced.

[0045] In an optional embodiment, the sum of the recessed depth of the protective protrusion 401 and the protruding length of the protrusion 3 is less than the radial distance from the lower cover 2 to the upper cover 1. This can prevent the upper cover 1 from colliding with the protective protrusion 401 during rotation, thereby hindering the rotation.

[0046] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An anti-theft bottle cap, characterized in that: The invention comprises an upper cover and a lower cover; the upper cover and the lower cover are rotatably connected; the lower cover radially protrudes outward to form at least one protrusion; an annular skirt extending downward is arranged at the edge of the upper cover; a notch structure having the same number as the at least one protrusion is opened at the edge of the annular skirt; an anti-theft block is arranged on the annular skirt; a first end of the anti-theft block is hinged to a first side wall of the notch structure and a second end of the anti-theft block extends into the upper cover; a connecting bridge is arranged on a second side wall of the notch structure opposite to the first side wall, and the connecting bridge is also fixedly connected to the second end of the anti-theft block; When the upper cover rotates away from the lower cover along a preset direction relative to the lower cover, the protrusion moves from the first position to the second position relative to the upper cover, and the protrusion contacts the connection bridge and breaks the connection bridge; The upper cover part includes an upper cover and a circular platform; the circular platform is arranged at the lower edge of the upper cover; the annular skirt is formed by extending the edge of the circular platform downward; a limit block extending downward is also arranged on the circular platform, and the limit block is arranged at a position adjacent to the hinge of the anti-theft block and the notch structure; When the upper cover rotates away from the lower cover along a preset direction relative to the lower cover, when the protrusion moves from the second position to the third position relative to the upper cover, the protrusion pushes the anti-theft block so that the anti-theft block rotates around the first side wall and is pressed between the limit block and the inner wall of the annular skirt; The inner wall of the annular skirt protrudes radially inward to form a protective protrusion adjacent to the first side wall and used to prevent the anti-theft block from turning over between the limit block and the annular skirt, and the protective protrusion and the notch structure are arranged in a one-to-one correspondence; when the anti-theft block is located between the limit block and the annular skirt, the anti-theft block is also located between the corresponding first side wall and the protective protrusion; The inner wall of the annular skirt protrudes radially inward to form a backstop rib adjacent to the second side wall and used to prevent the protrusion from over-rotating, and the backstop rib is arranged in a one-to-one correspondence with the protrusion.

2. The anti-theft bottle cap according to claim 1, characterized in that: An inclined section is arranged on the side of the limit block close to the axis of the lower cover, and the distance between the end of the inclined section close to the annular platform and the axis of the lower cover is smaller than the distance between the end of the inclined section away from the annular platform and the axis of the lower cover.

3. The anti-theft bottle cap according to claim 1, characterized in that: The outer wall of the upper cover is provided with anti-slip ribs.

4. The anti-theft bottle cap according to claim 1, characterized in that: When the protrusion rotates along a preset direction to a position corresponding to the limiting block, the protrusion and the limiting block are horizontally misaligned.

5. The anti-theft bottle cap according to claim 1, characterized in that: Anti-sheathing ribs are arranged in the lower cover portion.

6. The anti-theft bottle cap according to claim 1, characterized in that: The sum of the recessed depth of the protective protrusion and the protruding length of the protrusion is smaller than the radial distance from the lower cover portion to the annular skirt.

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