Anti-theft sealing structure for packaging container

Abstract

The present invention discloses an anti-theft sealing structure for a packaging container, comprising a sealing cover and a nozzle body, an anti-theft working position is arranged at intervals on the inner circumference of the anti-theft hole, a tearing piece is arranged in the anti-theft working position, a braking protrusion is arranged on the tearing piece, an avoidance portion is arranged inwardly on the outer circumference of the straw opposite to the anti-theft hole, a ratchet is arranged on the avoidance portion, the sealing cover is rotated to make the braking protrusion abut against the ratchet, and one end of the tearing piece is separated from the anti-theft working position by the tip of the ratchet cooperating with the rotating action of the sealing cover. The present invention arranges the tearing piece at the bottom of the sealing cover to reduce the overall volume of the sealing cover, and by arranging the avoidance portion, the ratchet position is closer to the outer diameter position of the straw, and the inner diameter of the anti-theft hole corresponding to the sealing cover is only slightly larger than the outer diameter of the straw, greatly reducing its diameter.

Description

Technical Field

[0001] The invention relates to the technical field of container filling tube sealing devices, and in particular to an anti-theft sealing structure for packaging containers. 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] For example, Chinese patent announcement number "CN205076215U" discloses a safety sealing cover, which includes a sealing cover body and a plurality of anti-swallowing components, wherein the anti-swallowing components are respectively connected to the sealing cover body, and the anti-swallowing components are sequentially distributed along the circumference of the sealing cover body, and a slot is left between any two adjacent anti-swallowing components, and is characterized in that at least one strength reinforcement member is provided between the two side walls of each slot.

[0004] It solves the problem of accidental ingestion by children, but the safety method used in the safety ring is to use a small plastic protrusion for clamping, which requires direct pressure installation when the lid is closed, which can easily cause damage to the lid and cause defective products, and may also cause the safety ring to be damaged prematurely due to inaccurate clamping. In the above-mentioned prior art, the spliced ​​sealing cover body is arranged outside the safety ring, which makes the overall size larger and consumes a lot of raw materials during production. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an anti-theft sealing structure for a packaging container.

[0006] To achieve the above-mentioned purpose, the present invention discloses an anti-theft sealing structure for a packaging container, comprising a sealing cover and a nozzle body, the bottom of the sealing cover is provided with an anti-theft hole inwardly, the bottom of the anti-theft hole is provided with a connecting hole, the inner circumference of the anti-theft hole is provided with anti-theft working positions at intervals, a tear sheet is provided in the anti-theft working position, a braking protrusion is provided on the tear sheet, the rear end of the braking protrusion is fixedly provided on the inner wall of the tear sheet, and the front end of the braking protrusion extends toward the sealing cover.

[0007] The nozzle body comprises a straw and a flange. The flange is integrally formed on the outer circumference of the straw for connecting with a packaging container. The outer circumference of the straw is provided with a threaded portion for connecting with the connecting hole.

[0008] An escape portion is provided inwardly on the outer circumference of the straw opposite to the anti-theft hole, and a pawl is provided on the escape portion. The sealing cover is rotated to make the braking protrusion abut against the pawl, and the tip of the pawl cooperates with the rotation of the sealing cover to separate one end of the tearing piece from the anti-theft working position.

[0009] Furthermore, the pawl is elastically arranged on the avoidance portion, and the tail end of the pawl is connected to the surface of the avoidance portion via a convex point.

[0010] Furthermore, the tip of the pawl is arranged toward the tightening direction of the sealing cover.

[0011] Furthermore, the head and tail ends of the tear sheet are respectively connected to two sides of the anti-theft working position.

[0012] One end of the tear sheet along the opening direction of the sealing cover is connected to the inner wall of the anti-theft working position through a breakable strip.

[0013] Furthermore, a threaded portion is provided on the inner periphery of the connecting hole.

[0014] Furthermore, an avoidance recess is provided on the inner periphery of the anti-theft hole, and the avoidance recess is located between two adjacent anti-theft working positions.

[0015] Furthermore, guide parts are respectively arranged on both sides of the anti-theft working position.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting the avoidance part, the position of the ratchet is closer to the outer diameter of the straw, and the inner diameter of the anti-theft hole of the corresponding sealing cover is only slightly larger than the outer diameter of the straw, greatly reducing its diameter;

[0018] 2. The safety ring is divided into several sections and arranged between the sealing cover bodies, which greatly reduces the diameter of the sealing cover body and the volume of the sealing cover body, thereby saving a lot of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view schematic diagram of the overall structure of the present embodiment 1;

[0020] Figure 2 This is a bottom view of the sealing cover of the first embodiment;

[0021] Figure 3 is a three-dimensional schematic diagram of the nozzle body of the first embodiment;

[0022] Figure 4 for Figure 3 A partial enlarged view of the middle A part;

[0023] Figure 5 It is a three-dimensional schematic diagram of the sealing cover of the second embodiment. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will be combined with Figure 1-Figure 4 The present invention is further described in detail with reference to the accompanying drawings.

[0025] Example 1: Reference Figure 1 As shown, an anti-theft sealing structure for a packaging container includes a sealing cover 1 and a nozzle body 2. The nozzle body 2 includes a straw and a flange. The flange is integrally formed on the outer periphery of the straw for connecting to the packaging container. The outer periphery of the straw is provided with a threaded portion for connecting to the sealing cover 1.

[0026] Recombination Figure 2 As shown, the bottom of the sealing cover 1 is provided with an anti-theft hole 3 inwardly, the bottom of the anti-theft hole 3 is provided with a connecting hole 4 inwardly, the inner periphery of the connecting hole 4 is provided with a threaded portion, and the connecting hole 4 is threadedly connected to the nozzle body 2 through the threaded portion.

[0027] The inner periphery of the anti-theft hole 3 is provided with a plurality of anti-theft working positions 31, which are in conduction with the bottom and the periphery of the sealing cover 1. In this embodiment, the number of the anti-theft working positions 31 is three, and at the same time, this embodiment does not limit the number of the anti-theft working positions 31.

[0028] Furthermore, a tearing piece 311 is provided in the anti-theft working position 31 . In this embodiment, the outer contour of the tearing piece 311 is in an arc shape. The head and tail ends of the tearing piece 311 are connected to the two sides of the anti-theft working position 31 respectively.

[0029] Several tearing pieces 311 form a safety ring.

[0030] Furthermore, one end of the tear sheet 311 along the opening direction of the sealing cover 1 is connected to the inner wall of the anti-theft working position 31 through a breakable strip 312 .

[0031] A braking protrusion 313 is disposed on the tearing piece 311 . The rear end of the braking protrusion 313 is fixedly disposed on the inner wall of the tearing piece 311 . The front end of the braking protrusion 313 extends toward the sealing cover 1 and is adjacent to the breakable strip 312 .

[0032] The inner periphery of the anti-theft hole 3 is provided with an avoidance recess 32, which is located between two adjacent anti-theft working positions 31. The two sides of the anti-theft working position 31 are provided with guide parts 314, and the two guide parts 314 are provided in an eight-shaped shape. There is an arc transition between the guide part 314 and the avoidance recess 32.

[0033] Reference Figure 3As shown, the lower half of the outer circumference of the nozzle body 2 is provided with an escape portion 21 inwardly, and a ratchet 22 is provided on the escape portion 21, and the tip of the ratchet 22 is arranged in the tightening direction of the sealing cover 1, and it serves as the front end of the ratchet. When the sealing cover 1 is screwed on the nozzle body 2, the ratchet 22 is arranged in the escape recess 32.

[0034] In this embodiment, the shape of the avoiding recess 32 corresponds to the arc shape of the pawl 22 , which is conducive to the sealing cover 1 rotating along the pawl 22 .

[0035] Recombination Figure 4 As shown, further, the pawl 22 is elastically arranged on the avoidance portion 21 . Specifically, the inner side wall of the rear end of the pawl 22 is connected to the surface of the avoidance portion 21 via a convex point to achieve elastic deformation of the pawl 22 .

[0036] During operation, the sealing cover 1 is rotated counterclockwise, and the pawl 22 is compressed inwardly. The relative position of the braking protrusion 313 and the pawl 22 is changed by the rotating action of the sealing cover 1 until the tip of the pawl 22 abuts against the braking protrusion 313. The sealing cover 1 continues to be rotated counterclockwise, and the breakable strip 312 is disconnected under the action of the pawl 22. At this time, one end of the tearing piece 311 is separated from one side of the anti-theft working position 31, indicating that the connection state of the sealing cover 1 and the cover body is disconnected. The user can intuitively observe the connection state of the tearing piece 311 from the anti-theft working position 31.

[0037] Compared with the traditional method of setting the pawl outside the straw, the inner diameter of the corresponding safety ring of the sealing cover is obviously larger than the outer diameter of the straw. In this embodiment, the pawl is positioned inward by setting an avoidance portion, and the inner diameter of the anti-theft hole of the corresponding sealing cover is only slightly larger than the outer diameter of the straw, thereby greatly reducing its diameter.

[0038] The conventional splicable sealing cover body is arranged outside the safety ring, which makes it larger in size. The present embodiment changes the way in which the safety ring and the sealing cover body are independent structures, and divides the safety ring into several sections and arranges them between the sealing cover bodies, thereby greatly reducing the diameter of the sealing cover body and the volume of the sealing cover body, which can save a lot of materials and reduce production costs.

[0039] Embodiment 2:

[0040] The connection structure and anti-theft structure of the sealing cover and the nozzle body of this embodiment are consistent with those of the first embodiment, except that:

[0041] Reference Figure 2 and Figure 5 As shown, the outer circumference of the sealing cover 1 is provided with a plurality of slots 5, which are arranged at intervals in the circumferential direction, and the two ends of the slots 5 are connected to the top and the bottom of the sealing cover 1. The setting position of the slots 5 corresponds to the anti-theft working position 31, so that the user can observe the state of the tearing piece 311.

[0042] In this embodiment, the number of the slots 5 is three, and this embodiment does not limit the number of the slots 5 .

[0043] An inserting protrusion 6 is provided on the outer periphery of the sealing cover 1 , and the outer contour of the inserting protrusion 6 corresponds to the shape of the slot 5 .

[0044] When in use, the plug-in protrusion 6 of one sealing cover 1 is inserted into the slot 5 of another sealing cover 1, thereby realizing the assembly function.

[0045] The top of the sealing cover 1 is provided with a plurality of first plug holes 7, which are arranged in a circular array with the center of the sealing cover 1 as the center. In this embodiment, the number of the first plug holes 7 is 6.

[0046] A plurality of second plug holes 8 are arranged at the bottom of the sealing cover 1 , and the plurality of second plug holes 8 are arranged in a circular array with the center of the sealing cover 1 as the center.

[0047] A plurality of plug-in bosses 9 are also provided at the bottom of the sealing cover 1 , and the plurality of plug-in bosses 9 are arranged in a circular array with the center of the sealing cover 1 as the center.

[0048] When in use, the plug-in protrusion 9 of one sealing cover 1 is inserted into the first plug-in hole 7 or the second plug-in hole 8 of the other sealing cover 1 to realize the assembly and splicing function of the two sealing covers 1 .

[0049] The sealing cover of this embodiment has the function of splicing and assembling, which greatly increases the use value of the sealing cover. The sealing cover will not be discarded at will because the nozzle body loses its use value, thereby reducing damage to the environment, improving value and adding interest.

[0050] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any modifications made according to the spirit of the main technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-theft sealing structure for a packaging container, characterized in that: The invention comprises a sealing cover (1) and a nozzle body (2), wherein the bottom of the sealing cover (1) is provided with an anti-theft hole (3) facing inward, the bottom of the anti-theft hole (3) is provided with a connecting hole (4), the inner circumference of the anti-theft hole (3) is provided with anti-theft working positions (31) at intervals in the circumferential direction, a tearing piece (311) is provided in the anti-theft working position (31), a braking protrusion (313) is provided on the tearing piece (311), and the front end of the braking protrusion (313) extends towards the sealing cover (1); The nozzle body (2) comprises a straw and a flange, wherein the flange is integrally formed on the outer circumference of the straw, the flange is used to be connected to a packaging container, and a threaded portion is provided on the outer circumference of the straw for connecting to the connecting hole (4); An escape portion (21) is provided inwardly on the outer circumference of the straw opposite to the anti-theft hole (3), and a ratchet (22) is provided on the escape portion (21); the sealing cover (1) is rotated so that the front end of the braking protrusion (313) is engaged with the tip of the ratchet (22), and one end of the tearing piece (311) is separated from the anti-theft working position (31) in coordination with the rotation of the sealing cover (1); The ratchet pawl (22) is elastically arranged on the avoidance portion (21); The leading and trailing ends of the tear sheet (311) are respectively connected to two sides of the anti-theft working position (31).

2. The anti-theft sealing structure for a packaging container according to claim 1, characterized in that: The tail end of the ratchet (22) is connected to the surface of the avoidance portion (21) via a convex point.

3. The anti-theft sealing structure for a packaging container according to claim 1 or 2, characterized in that: The tip of the ratchet (22) is arranged toward the tightening direction of the sealing cover (1).

4. The anti-theft sealing structure for a packaging container according to claim 1, characterized in that: One end of the tear sheet (311) along the opening direction of the sealing cover (1) is connected to the inner wall of the anti-theft working position (31) via a breakable strip (312).

5. The anti-theft sealing structure for a packaging container according to claim 1, characterized in that: The inner circumference of the connecting hole (4) is provided with a threaded portion.

6. The anti-theft sealing structure for a packaging container according to claim 1, characterized in that: An avoidance recess (32) is provided on the inner periphery of the anti-theft hole (3), and the avoidance recess (32) is located between two adjacent anti-theft working positions (31).

7. The anti-theft sealing structure for a packaging container according to claim 6, characterized in that: Guide parts (314) are respectively arranged on both sides of the anti-theft working position (31).

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