Anti-fake bottle cap

Abstract

The invention discloses an anti-fake bottle cap, and belongs to the technical field of bottle caps, the anti-fake bottle cap comprises a bottle cap body and an anti-theft ring arranged below the bottle cap body, the bottom end of the bottle cap body is provided with an anti-theft connecting module, the anti-theft connecting module comprises a plurality of connecting bridges, a plurality of connecting rings and a plurality of compensation sealing plates, and the connecting bridges and the compensation sealing plates are connected through the connecting rings. According to the anti-theft bottle cap, the anti-theft connecting module is stably connected with the bottle cap body and the anti-theft ring from the middle area, the inner shell is complemented to replace the anti-theft ring to be stressed on the inner side of the anti-theft ring, and the stress of the inner shell is complemented to be transmitted to the angular elastic part to enable the inclined part of the angular elastic part to deviate outwards; the vertical plate drives the two angular cut-off heads to extrude and cut off the edge parts, connected with the bottle cap body and the anti-theft ring, of the connecting bridges from the back of the aligned connecting bridges, so that the connecting bridges are irreversibly broken and separated between the bottle cap body and the anti-theft ring, the integrity of the bottle cap is effectively damaged, and the anti-counterfeiting and anti-theft effects of the bottle cap are improved.

Description

Technical Field

[0001] The invention relates to the technical field of bottle caps, and in particular to an anti-counterfeiting bottle cap. Background Art

[0002] The function of the bottle cap is to seal the bottle. The plastic bottle cap is a common beverage bottle cap. The main body of the bottle cap is screwed on the bottle mouth of the bottle body. The main body of the bottle cap combines with the anti-theft ring at the bottom to form a sealing structure at the bottle mouth of the bottle. At the same time, the main body of the bottle cap breaks away from the anti-theft ring after being twisted to achieve the effect of anti-counterfeiting and anti-theft. The bottle cap body and the anti-theft ring are separately connected together through a connecting bridge in the middle part. The anti-theft ring is located on a round support that expands outward from the bottle mouth part. There is a certain gap between the bottom of the anti-theft ring and the round support, so that the bottom of the anti-theft ring is easy to extend into the extrusion sheet. The extrusion sheet moves upward inside the anti-theft ring and rotates around the anti-theft ring to squeeze and expand various areas of the anti-theft ring, which can easily cause the anti-theft ring to expand to a state where it can move outside the screw-on line of the bottle mouth part, so that the bottle cap can be pried open and removed without damaging the bottle cap and the anti-theft ring. Only relying on the separate connection between the anti-theft ring and the bottle cap body at the bottle mouth part, it is impossible to effectively monitor and adjust the integrity of the connection between the bottle cap body and the anti-theft ring when the anti-theft ring is squeezed and expanded, thereby affecting the anti-counterfeiting and anti-theft effects of the bottle cap and affecting the safe use of the bottle and the bottle cap. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides an anti-counterfeiting bottle cap, which stably connects the bottle cap body and the anti-theft ring from the middle area by arranging an anti-theft connecting module, and a plurality of compensating sealing plates fill the interval space between the bottle cap body, the anti-theft ring and the connecting bridge, and shield a plurality of extrusion and cutting modules to avoid a plurality of angular cutting heads from being exposed to the outside, and the complementary inner shell is subjected to force on the inner side of the anti-theft ring instead of the anti-theft ring, and the force of the complementary inner shell is transmitted to the angular elastic member to make the inclined part of the angular elastic member shift outward, and the vertical plate carries two angular cutting heads to extrude and cut off the edge part of the connecting bridge connecting the bottle cap body and the anti-theft ring from the rear of the aligned connecting bridge, so that the connecting bridge is irreversibly broken and detached between the bottle cap body and the anti-theft ring, so as to effectively destroy the integrity of the bottle cap, improve the anti-counterfeiting and anti-theft effects of the bottle cap, and solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: An anti-counterfeiting bottle cap, comprising a bottle cap body and an anti-theft ring arranged below the bottle cap body, an anti-theft connection module is arranged at the bottom end of the bottle cap body, the anti-theft connection module comprises a connection bridge, a connection ring and a compensation sealing plate, the number of the connection bridges and the compensation sealing plate are both several, several of the connection bridges are annularly fixed to the outer side wall of the connection ring and positioned at the bottom end of the bottle cap body, the anti-theft ring is positioned below the bottle cap body through the several connection bridges, and several of the compensation sealing plates surround the connection ring to fill the interval space between the bottle cap body, the anti-theft ring and the connection bridge; An inner force-receiving module is provided on the inner side of the anti-theft ring, and the inner force-receiving module includes a complementary inner shell and an inner retaining ring. The inner retaining ring is clamped and positioned on the inner side of the anti-theft connection module by the complementary inner shell. A plurality of extrusion and cutting modules corresponding to the connecting bridge are provided between the anti-theft ring and the inner force-receiving module, and the extrusion and cutting module includes an angular elastic member, a vertical plate and an angular cutting head. There are two angular cutting heads, and the two angular cutting heads are positioned above the inclined part of the angular elastic member through the vertical plate. The inclined part of the angular elastic member is fixedly connected to the outer side wall of the complementary inner shell.

[0005] Furthermore, two compensation sealing plates are arranged one above and one below each other between two adjacent connection bridges, and both compensation sealing plates are fixedly connected to the outer side wall of the connection ring, and two ends of the compensation sealing plates are respectively in contact with the corresponding two connection bridges.

[0006] Furthermore, the top inner edge portion of the connecting bridge is fixedly connected to the bottom end of the bottle cap body, and the bottom inner edge portion of the connecting bridge is fixedly connected to the top end of the anti-theft ring.

[0007] Furthermore, a splicing groove is provided at the bottom of the anti-theft ring, and the bottom of the complementary inner shell is snap-connected inside the splicing groove.

[0008] Furthermore, the inner retaining ring is fixedly connected to the top of the complementary inner shell, and the top of the inner retaining ring is flush with the top of the anti-theft ring.

[0009] Furthermore, an activity space is formed between the anti-theft ring and the supplementary inner shell, and the extrusion and cutting module is located inside the activity space.

[0010] Furthermore, the vertical plate is fixedly connected to the top of the inclined part of the angular elastic member, and the two angular cutting heads are fixedly connected to the outer side wall of the vertical plate, one above and one below, and the two angular cutting heads are both located behind the corresponding connecting bridge, and the tip parts of the angular cutting heads are aligned with the inner edge part of the connecting bridge.

[0011] Furthermore, the outer wall of the complementary inner shell has an inclined pushing portion, the inclined part of the angular elastic member is fixedly connected to the inclined pushing portion, the other side of the angular elastic member is clamped on the inner wall of the anti-theft ring, and the outer wall of the inner retaining ring is fixedly connected to the inner wall of the vertical plate.

[0012] Furthermore, the outer side wall of the complementary inner shell is provided with a groove, and the groove is located below the inclined pushing portion.

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

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the inner splicing force receiving module is positioned on the inner side of the anti-theft ring, and the anti-theft connecting module stably connects the bottle cap body and the anti-theft ring from the middle area, so that the tip parts of several angular cutting heads align with the inner edge parts of the connecting bridges to splice the bottle cap body and the anti-theft ring from the rear of the corresponding connecting bridges, and several compensating sealing plates surround the connecting ring to effectively fill the interval space between the bottle cap body, the anti-theft ring and the connecting bridge, and cover several extrusion cutting modules, so that the bottle cap body, the anti-theft ring, the anti-theft connecting module, the inner splicing force receiving module and the extrusion cutting module remain in an integrated state and are fastened to the bottle mouth of the bottle body The vertical plate carries two angular cutting heads and squeezes and cuts off the edge of the connecting bridge connecting the bottle cap body and the anti-theft ring from behind the aligned connecting bridge, causing the connecting bridge to irreversibly break and detach between the bottle cap body and the anti-theft ring, so as to effectively destroy the integrity of the bottle cap, and regionally destroy the integrity of the connection between the bottle cap body and the anti-theft ring from the squeezed area, thereby improving the anti-counterfeiting and anti-theft effects of the bottle cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution in the embodiment, the drawings in the embodiment are briefly introduced below.

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the present invention; Figure 3 It is a schematic cross-sectional structure diagram of the present invention; Figure 4 for Figure 3 A partial enlarged structural diagram of the middle A part; Figure 5 It is a schematic diagram of the partially separated structure of the present invention; In the figure: 1. Bottle cap body; 11. Bottle mouth plug; 2. Anti-theft ring; 21. Splicing groove; 3. Anti-theft connection module; 31. Connection bridge; 32. Connection ring; 33. Compensation sealing plate; 4. Inner force receiving module; 41. Compensate inner shell; 42. Inner retaining ring; 43. Inclined push part; 44. Groove; 5. Extrusion and cutting module; 51. Angular elastic member; 52. Vertical plate; 53. Angular cutting head; 6. Activity space. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1 to Figure 5 In an embodiment of the present invention, an anti-counterfeiting bottle cap comprises a bottle cap body 1 and an anti-theft ring 2 arranged below the bottle cap body 1. An anti-theft connection module 3 is arranged at the bottom end of the bottle cap body 1. The anti-theft connection module 3 comprises a connecting bridge 31, a connecting ring 32 and a compensating sealing plate 33. The connecting bridges 31 and the compensating sealing plate 33 are both in a plurality of numbers. The plurality of connecting bridges 31 are annularly fixed to the outer side wall of the connecting ring 32 and positioned at the bottom end of the bottle cap body 1. The anti-theft ring 2 is positioned below the bottle cap body 1 through the plurality of connecting bridges 31. The plurality of compensating sealing plates 33 surround the connecting ring 32 to fill the interval space between the bottle cap body 1, the anti-theft ring 2 and the connecting bridge 31. An inner force-receiving module 4 is provided on the inner side of the anti-theft ring 2, and the inner force-receiving module 4 includes a complementary inner shell 41 and an inner retaining ring 42. The inner retaining ring 42 is clamped and positioned on the inner side of the anti-theft connection module 3 by the complementary inner shell 41. A plurality of extrusion and cutting modules 5 corresponding to the connecting bridge 31 are provided between the anti-theft ring 2 and the inner force-receiving module 4. The extrusion and cutting module 5 includes an angular elastic member 51, a vertical plate 52 and an angular cutting head 53. There are two angular cutting heads 53. The two angular cutting heads 53 are positioned above the inclined part of the angular elastic member 51 through the vertical plate 52. The inclined part of the angular elastic member 51 is fixedly connected to the outer side wall of the complementary inner shell 41.

[0019] The anti-theft ring 2 is vertically arranged below the bottle cap body 1, and the anti-theft connection module 3 connects the bottle cap body 1 and the anti-theft ring 2 from the middle area of ​​the bottle cap body 1 and the anti-theft ring 2. The anti-theft connection module 3 is composed of a connecting bridge 31, a connecting ring 32 and a compensating sealing plate 33. The number of connecting bridges 31 and the compensating sealing plate 33 are both several, and several connecting bridges 31 are fixedly connected to the outer side wall of the connecting ring 32 in a ring shape. The connecting ring 32 is located between the bottle cap body 1 and the anti-theft ring 2, and the top and bottom of the connecting bridge 31 correspond to the bottom end of the bottle cap body 1 and the top end of the anti-theft ring 2 respectively. The top inner edge part of the connecting bridge 31 is fixedly connected to the bottom end of the bottle cap body 1, and the bottom inner edge part of the connecting bridge 31 is fixedly connected to the top end of the anti-theft ring 2. The bottle cap body 1 and the anti-theft ring 2 are stably and effectively connected through several connecting bridges 31. Two compensation sealing plates 33 are arranged between two adjacent connecting bridges 31. The two compensation sealing plates 33 are arranged one above the other and one below the other. The two compensation sealing plates 33 are fixedly connected to the outer wall of the connecting ring 32, and the compensation sealing plates 33 are stably connected to the interval space between the connecting ring 32 and the connecting bridge 31. The two ends of the compensation sealing plates 33 contact the corresponding two connecting bridges 31 respectively, so that a number of compensation sealing plates 33 surround the connecting ring 32, which can effectively fill and block the interval space between the bottle cap body 1, the anti-theft ring 2 and the connecting bridge 31, thereby improving the integrity of the bottle cap. A bottle mouth inner plug 11 is fixedly connected to the inside of the bottle cap body 1, and the outer wall of the bottle mouth inner plug 11 is close to the inner wall of the bottle mouth. The bottle mouth inner plug 11 can be plugged into the inside of the bottle mouth when the bottle cap body 1 is tightened on the bottle mouth part, thereby improving the sealing effect of the bottle.

[0020] The inner force-receiving module 4 is arranged on the inner side of the anti-theft ring 2. The inner force-receiving module 4 is composed of a complementary inner shell 41 and an inner retaining ring 42. A splicing groove 21 is opened at the bottom of the anti-theft ring 2. The bottom of the complementary inner shell 41 is snap-connected inside the splicing groove 21. The inner retaining ring 42 is fixedly connected to the top of the complementary inner shell 41. The top of the inner retaining ring 42 is flush with the top of the anti-theft ring 2. The inner force-receiving module 4 is stably combined on the inner side of the anti-theft ring 2, so that the inner force-receiving module 4 and the anti-theft ring 2 form an integral anti-theft structure.

[0021] An activity space 6 is formed between the anti-theft ring 2 and the supplementary inner shell 41, and a plurality of extrusion and cutting modules 5 are distributed in an annular shape inside the activity space 6. The extrusion and cutting module 5 is composed of an angular elastic member 51, a vertical plate 52 and an angular cutting head 53. The vertical plate 52 is fixedly connected to the top of the inclined portion of the angular elastic member 51. There are two angular cutting heads 53, and the two angular cutting heads 53 are fixedly connected to the outer side wall of the vertical plate 52 one above and one below. The outer side wall of the supplementary inner shell 41 has an inclined push portion 43, the inclined portion of the angular elastic member 51 is fixedly connected to the inclined push portion 43, the other side of the angular elastic member 51 is clamped on the inner side wall of the anti-theft ring 2, and the outer side wall of the inner retaining ring 42 is fixedly connected to the inner side wall of the vertical plate 52, so as to stably combine and position the extrusion and cutting module 5 in a designated area inside the activity space 6, so as to effectively fix the angular cutting head 53 in the interval space between the bottle cap body 1 and the anti-theft ring 2. The two positioned angular cutting heads 53 are located at the rear of the corresponding connecting bridge 31 , so that the tip of the angular cutting head 53 can be aligned with the inner edge of the connecting bridge 31 , effectively performing the alignment operation of the angular cutting head 53 behind the corresponding connecting bridge 31 .

[0022] The supplementary inner shell 41 is spliced ​​with the anti-theft ring 2 from the inner area of ​​the anti-theft ring 2, so that the supplementary inner shell 41 blocks and protects the anti-theft ring 2 from the inside, so that the supplementary inner shell 41 can be stressed before the anti-theft ring 2, and the anti-theft ring 2 is prevented from being squeezed and pried by the external thin flat piece. The force of the supplementary inner shell 41 can be transmitted to the angular elastic member 51, so that the inclined part of the angular elastic member 51 is offset to the part that contacts the inner wall of the anti-theft ring 2, so that the vertical plate 52 changes position in the activity space 6 following the inclined part of the angular elastic member 51, and the vertical plate 52 with two angular cutting heads 53 squeezes and cuts off the edge of the connecting bridge 31 connecting the bottle cap body 1 and the anti-theft ring 2 from behind the aligned connecting bridge 31, so that the corresponding connecting bridge 31 is disengaged from between the bottle cap body 1 and the anti-theft ring 2, destroying the connecting bridge 31 in the stress-bearing area, causing the anti-theft connection module 3 to be missing as a whole, and effectively destroying the integrity of the anti-theft connection module 3. A groove 44 is formed on the outer wall of the complementary inner shell 41 . The groove 44 is located below the inclined pushing portion 43 , so as to ensure that the complementary inner shell 41 can effectively push and deform the angular elastic member 51 .

[0023] The inner force receiving module 4 is positioned and spliced ​​on the inner side of the anti-theft ring 2, and several extrusion cutting modules 5 are squeezed and positioned in the activity space 6. The anti-theft connection module 3 stably connects the bottle cap body 1 and the anti-theft ring 2 from the middle area, and the angular cutting head 53 is positioned between the bottle cap body 1 and the anti-theft ring 2, so that the tip parts of the several angular cutting heads 53 are aligned with the inner edge parts of the connecting bridge 31 from the rear of the corresponding connecting bridge 31 to splice the bottle cap body 1 and the anti-theft ring 2. Several compensation sealing plates 33 surround the connecting ring 32, and at the same time, the two ends contact the corresponding connecting bridge 31 to effectively fill the space between the bottle cap body 1, the anti-theft ring 2 and the connecting bridge 31. The compensation sealing plates 33 can also cover several extrusion cutting modules 5, so that the bottle cap body 1, the anti-theft ring 2, the anti-theft connection module 3, the inner force receiving module 4 and the extrusion cutting module 5 remain in an integral state and are fastened to the bottle mouth part of the bottle body, and at the same time, several angular cutting heads 53 can be prevented from being exposed to the outside. The complementary inner shell 41 is subjected to force on the inner side of the anti-theft ring 2 instead of the anti-theft ring 2. The force of the complementary inner shell 41 is transmitted to the angular elastic piece 51, causing the inclined part of the angular elastic piece 51 to shift outward. The vertical plate 52 carries two angular cutting heads 53 from the rear of the aligned connecting bridge 31, squeezes and cuts off the edge part of the connecting bridge 31 connecting the bottle cap body 1 and the anti-theft ring 2, so that the connecting bridge 31 is irreversibly broken and detached between the bottle cap body 1 and the anti-theft ring 2, so as to effectively destroy the integrity of the bottle cap. When the anti-theft ring 2 is squeezed and expanded, the integrity of the connection between the bottle cap body 1 and the anti-theft ring 2 can be effectively destroyed from the squeezed area, thereby improving the anti-counterfeiting and anti-theft effects of the bottle cap.

[0024] The working principle of the present invention is as follows: the bottle cap body 1 is screwed onto the bottle mouth of the bottle body, the complementary inner shell 41 is spliced ​​with the anti-theft ring 2 from the inner area of ​​the anti-theft ring 2, the complementary inner shell 41 and the anti-theft ring 2 are positioned together on the round support that expands outward from the bottle mouth, when the anti-theft ring 2 is pried, the complementary inner shell 41 is subjected to force before the anti-theft ring 2, and the force of the complementary inner shell 41 is transmitted to the angular elastic member 51, so that the inclined portion of the angular elastic member 51 is offset toward the portion that contacts the inner wall of the anti-theft ring 2, The vertical plate 52 changes its position in the activity space 6 following the inclined part of the angular elastic member 51, and carries the two angular cutting heads 53 from behind the aligned connecting bridge 31 to squeeze and cut off the edge part of the connecting bridge 31 connecting the bottle cap body 1 and the anti-theft ring 2, so that the corresponding connecting bridge 31 breaks off from between the bottle cap body 1 and the anti-theft ring 2, destroying the connecting bridge 31 in the force-bearing area, causing the anti-theft connecting module 3 to be missing as a whole, destroying the integrity of the bottle cap, and achieving the anti-counterfeiting and anti-theft effect of the bottle cap.

[0025] 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. An anti-counterfeiting bottle cap, comprising a bottle cap body (1) and an anti-theft ring (2) arranged below the bottle cap body (1), characterized in that: An anti-theft connection module (3) is provided at the bottom end of the bottle cap body (1), and the anti-theft connection module (3) comprises a connection bridge (31), a connection ring (32) and a compensation sealing plate (33). The connection bridges (31) and the compensation sealing plates (33) are both in plurality. The plurality of connection bridges (31) are fixed in an annular shape on the outer side wall of the connection ring (32) and are positioned at the bottom end of the bottle cap body (1). The anti-theft ring (2) is positioned below the bottle cap body (1) through the plurality of connection bridges (31). The plurality of compensation sealing plates (33) surround the connection ring (32) to fill the interval space between the bottle cap body (1), the anti-theft ring (2) and the connection bridge (31); An inner force receiving module (4) is provided on the inner side of the anti-theft ring (2), and the inner force receiving module (4) comprises a complementary inner shell (41) and an inner retaining ring (42). The inner retaining ring (42) is clamped and positioned on the inner side of the anti-theft connection module (3) by the complementary inner shell (41). A plurality of extrusion and cutting modules (5) corresponding to the connection bridge (31) are provided between the anti-theft ring (2) and the inner force receiving module (4). The extrusion and cutting modules (5) comprise an angular elastic member (51), a vertical plate (52) and an angular cutting head (53). The number of the angular cutting heads (53) is two. The two angular cutting heads (53) are positioned above the inclined portion of the angular elastic member (51) by the vertical plate (52). The inclined portion of the angular elastic member (51) is fixedly connected to the outer side wall of the complementary inner shell (41).

2. The anti-counterfeiting bottle cap according to claim 1, characterized in that: Two compensation sealing plates (33) are arranged one above the other between two adjacent connection bridges (31), and the two compensation sealing plates (33) are fixedly connected to the outer side wall of the connection ring (32), and the two ends of the compensation sealing plates (33) are respectively in contact with the corresponding two connection bridges (31).

3. The anti-counterfeiting bottle cap according to claim 1, characterized in that: The top inner edge portion of the connecting bridge (31) is fixedly connected to the bottom end of the bottle cap body (1), and the bottom inner edge portion of the connecting bridge (31) is fixedly connected to the top end of the anti-theft ring (2).

4. The anti-counterfeiting bottle cap according to claim 1, characterized in that: The anti-theft ring (2) has a splicing groove (21) at the bottom, and the bottom of the complementary inner shell (41) is snap-fitted and connected inside the splicing groove (21).

5. The anti-counterfeit bottle cap according to claim 1, characterized in that: The inner retaining ring (42) is fixedly connected to the top of the complementary inner shell (41), and the top of the inner retaining ring (42) is flush with the top of the anti-theft ring (2).

6. The anti-counterfeiting bottle cap according to claim 1, characterized in that: An active space (6) is formed between the anti-theft ring (2) and the supplementary inner shell (41), and the extrusion and cutting module (5) is located inside the active space (6).

7. The anti-counterfeiting bottle cap according to claim 1, characterized in that: The vertical plate (52) is fixedly connected to the top of the inclined portion of the angular elastic member (51), and the two angular cut-off heads (53) are fixedly connected to the outer side wall of the vertical plate (52) one above and one below, and the two angular cut-off heads (53) are both located behind the corresponding connecting bridge (31), and the tip portions of the angular cut-off heads (53) are aligned with the inner edge portion of the connecting bridge (31).

8. The anti-counterfeiting bottle cap according to claim 1, characterized in that: The outer side wall of the complementary inner shell (41) has an inclined push portion (43), the inclined portion of the angular elastic member (51) is fixedly connected to the inclined push portion (43), the other side of the angular elastic member (51) is clamped on the inner side wall of the anti-theft ring (2), and the outer side wall of the inner retaining ring (42) is fixedly connected to the inner side wall of the vertical plate (52).

9. The anti-counterfeiting bottle cap according to claim 8, characterized in that: The outer side wall of the complementary inner shell (41) is provided with a groove (44), and the groove (44) is located below the inclined pushing portion (43).

10. The anti-counterfeiting bottle cap according to claim 1, characterized in that: A bottle mouth inner plug (11) is fixedly connected to the bottle cap body (1), and the outer wall of the bottle mouth inner plug (11) is closely attached to the inner wall of the bottle mouth.

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