A safety cap and its nozzle assembly

Abstract

The present invention discloses a safety cap, which includes a sealing cover body and an expanded wall. The expanded wall is arranged around the sealing cover body in a ring shape. The expanded wall is connected to the outer periphery of the sealing cover body through a hollow structure, and an axial air passage is formed between the sealing cover body and the expanded wall; the expanded wall is provided with at least one opening penetrating its side portion to form a radial air passage. The opening extends through to the end of the expanded wall close to the container, and at least one deformable connection wire bundle is arranged in the opening; the first end of the connection wire bundle is located at any position inside the outer surface of the expanded wall, and the second end of the connection wire bundle extends downward and is directly or indirectly bound to a bundle ring. The bundle ring is rotatably connected to the container; the connection wire bundle does not extend beyond the outside of the expanded wall; through a clever structural design, the present invention forms a triple safety insurance to maximize the avoidance of asphyxiation sutures, and at the same time, the arrangement of the connection wire bundle and the bundle ring facilitates recycling and reuse; the present invention also discloses a nozzle assembly including the safety cap, which is applicable to a flexible packaging container.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging, and particularly relates to a safety cap and a nozzle assembly thereof. Background Art

[0002] The drinking or discharging openings of packaging containers are all provided with seal caps that can be repeatedly loaded and unloaded to prevent the contents from spilling and being contaminated, and at the same time ensure the cleanliness and hygiene of the drinking or discharging openings.

[0003] However, in the field of children's products, especially in the field of children's food, small-sized and separately provided seal caps pose safety hazards. Young children generally show strong interest in colorful food packaging and play with it repeatedly for a period of time. Especially during the "sensitive period of details", "oral stage", "teething period", etc., they show strong interest in small things and will try to put all small-sized items they can get into their mouths to directly explore and recognize things through smell and taste. Small-sized seal caps that can be completely separated from the packaging container are extremely likely to attract the attention of children, and thus are easily stuffed into their mouths and swallowed by children during play, causing suffocation and endangering life, presenting relatively large safety hazards.

[0004] On the other hand, with the increasing attention to environmental issues, the concept of environmental protection and sustainable development is being widely advocated and applied. Seal caps that can be completely separated from the packaging container are easily discarded casually alone, resulting in difficulties in recycling the seal caps and the packaging containers together, presenting problems of resource waste and environmental pollution.

[0005] To solve the above problems, the patent document with the application number CN201020205935.0 discloses a new type of bottle cap that can be connected to plastic bottles such as mineral water bottles and beverage bottles. The bottle cap includes an upper part of the bottle cap, a lower part of the bottle cap, at least two easily tearable connection points, and a connecting rib connecting the upper part and the lower part of the bottle cap. The lower part of the bottle cap is arranged below the snap ring at the bottle mouth of the bottle body. The upper part of the bottle cap is threadedly connected to the bottle mouth, and the tearable connection points can be separated from the lower part of the bottle cap and the bottle mouth. After the upper part of the bottle cap is separated from the bottle mouth, it is still connected to the bottle body as a whole through the connecting rib.

[0006] The above-mentioned prior art keeps the opened bottle cap still connected to the bottle body by adding a connecting rib, which can prevent the bottle cap from being discarded alone, is beneficial to recycling, and at the same time, even if a child puts the bottle cap into the mouth, it cannot be swallowed, basically avoiding the safety hazard of suffocation caused by swallowing.

[0007] However, the connecting rib of this prior art protrudes outward in a C-shaped bend at the bottle mouth, and has the following deficiencies:

[0008] First, in addition to considering the final user application scenario in product design, it is also necessary to consider production equipment, processes, procedures, etc., and consider how to reduce production costs and improve production efficiency.

[0009] In the existing mature production water flow line, the bottle caps involve multiple procedures such as screening and transportation. This includes transporting a large number of bottle caps to a vibrating disk, where the caps are transported and screened to align their orientations, facilitating subsequent grasping by a robotic gripper. The robotic gripper then grasps the bottle cap and installs it onto a packaging container. That is, the structure and parameter design of the entire production line are precisely designed for the bottle cap size without an outwardly protruding structure. Adding an outwardly protruding connecting rib will change the outer peripheral dimensions and center of gravity of the bottle cap, etc. The original production line would require a large number of modifications and debugging to adapt to the bottle cap with an outwardly protruding connecting rib, resulting in extremely high costs.

[0010] The impacts of the outwardly protruding connecting rib on the production line include but are not limited to the following scenarios:

[0011] First, the width of the rear transportation track on the vibrating disk is set according to the outer peripheral dimension of a single bottle cap. The bottle caps are sorted into a closely arranged single row for transportation on the track. Adding an outwardly protruding connecting rib will affect the arrangement density and transportation stability of the sealed caps on the vibrating disk track, and the entire "cap sorting" production line needs to be redesigned and debugged for the outwardly protruding connecting rib, resulting in extremely high costs.

[0012] Second, when passing through the "orientation screening station" of the vibrating disk, the outwardly protruding connecting rib will cause some bottle caps with the correct orientation to be screened out of the conveying track and transported back into the vibrating disk again, affecting the screening accuracy rate and production efficiency.

[0013] Finally, the outwardly protruding C-shaped connecting rib is also likely to interfere with the movement, grasping, and capping of the subsequent robotic gripper. For example, the originally designed capping interval obviously needs to be increased to prevent interference between adjacent capping stations.

[0014] From the above simple examples, it can be seen that although only an outwardly protruding connecting rib is added to the bottle cap, it will cause modifications or debugging to be required for related equipment such as the "cap grasping" production line and the "capping" production line.

[0015] Second, during the processes of finished product packaging, transportation, shelving, etc., the outwardly protruding connecting rib is prone to being scratched and pulled by external forces, which may cause problems such as scratches, burrs, and fractures, affecting the product packaging quality, especially the appearance packaging quality.

[0016] Third, although designing the connecting rib can basically avoid the risk of choking by swallowing, essentially, there is only one level of safety insurance. During the process of children playing with it repeatedly, unexpected situations (such as strong pulling, being bitten off by a pet, etc.) may occur, resulting in the fracture of the connecting rib. Subsequently, the bottle cap can completely separate from the bottle body, and the risk of choking by swallowing reappears. Summary of the Invention

[0017] In view of the problems in the related art, the present invention provides a safety cap and its suction nozzle assembly to overcome the above-mentioned technical problems existing in the existing related art.

[0018] The technical solution of the present invention is implemented as follows:

[0019] A safety cap includes an integrally formed sealing cap body and a flared wall. The sealing cap body is rotatably connected and installed at the opening of the container to seal the opening of the container. The flared wall is arranged around the sealing cap body. The flared wall is connected to the outer periphery of the sealing cap body through a hollow structure, and an axial air passage is formed between the sealing cap body and the flared wall;

[0020] The flared wall is provided with at least one opening penetrating its side to form a radial air passage. The opening extends through to the end of the flared wall close to the container, and at least one deformable and same-material connecting wire bundle is arranged in the opening;

[0021] The first end of the connecting wire bundle is located at any position inside the outer surface of the flared wall. The second end of the connecting wire bundle extends downward and is directly or indirectly constrained by a bundle ring, and the bundle ring is rotatably connected to the container;

[0022] The connecting wire bundle does not extend beyond the outer side of the flared wall;

[0023] When the flared wall is pinched and rotated to be opened, the bundle ring rotatably connected to the container enables the connecting wire bundle to rotate along with the flared wall; when the sealing cap body is unscrewed and separated from the container, the bundle ring still remains rotatably connected to the container and keeps connecting the sealing cap body and the flared wall through the connecting wire bundle.

[0024] Preferably, the first end of the connecting wire bundle protrudes from the top wall or side wall of the opening towards the inside of the opening, and the connecting wire bundle does not extend beyond the inner side of the flared wall;

[0025] The connecting wire bundle is arranged close to the inner side of the flared wall, and the inner side surface of the connecting wire bundle is flush or substantially flush with the inner side surface of the flared wall.

[0026] Preferably, the part of the connecting wire bundle located in the opening is provided with a bending structure, and a first break connection structure is connected between the bending structure and the top wall and / or side wall of the opening;

[0027] The part of the connecting wire bundle in the opening has a plurality of U-shaped bends connected end to end, and several of the U-shaped bends are arranged along the axis of the safety cap;

[0028] The U-shaped bend has two straight line segments and a bending segment connecting the two straight line segments, and a first break connection structure is connected between the bending segment and the side wall of the opening;

[0029] The connection part of the straight line segment and the bending segment is set as a turning part. The width of the connecting wire bundle gradually decreases near the turning part and gradually increases away from the turning part;

[0030] The first break connection structure includes a plurality of breakable tabs, and the thickness of the breakable tabs gradually decreases from the wall surface of the opening towards the direction of the connecting wire harness;

[0031] An injection molded end seat with a size larger than that of the breakable tab is further provided between the breakable tab and the wall surface of the opening.

[0032] Preferably, the structure of the wall expansion corresponding to the top of the opening is an elastic deformable elastic strip portion;

[0033] When the user pinches and unseals the wall expansion, the wall expansion provided with the elastic strip portion undergoes slight deformation, and the left and right side walls of the opening simultaneously approach and squeeze towards the connecting wire harness;

[0034] The outer wall structure of the wall expansion is a plurality of anti-slip ridges arranged in a circumferential array around the central axis. Each single anti-slip ridge extends axially, and the outer edges of the anti-slip ridges are all designed as arcs. The bottoms of the plurality of anti-slip ridges are provided with a C-shaped bottom, and the C-shaped bottom connects all the anti-slip ridges at the same time.

[0035] Preferably, the hollow structure is a plurality of arc-shaped pieces, and the plurality of arc-shaped pieces are evenly distributed around the sealing cover body. A main positioning point is provided at the center of the top surface of the sealing cover body, and two secondary positioning points are symmetrically provided on both sides of the main positioning point. The secondary positioning points correspond to the middle of the space between two arc-shaped pieces;

[0036] Each single arc-shaped piece is arranged along the axial direction of the sealing cover body, and the plurality of arc-shaped pieces all bend and protrude in the screwing direction.

[0037] Preferably, a second break connection structure is provided between the sealing cover body and the wire harness ring;

[0038] The second break connection structure includes a plurality of unsealing posts, and the thickness of the unsealing posts gradually decreases near the sealing cover body;

[0039] At least two sets of torsion tooth groups distributed in the circumferential direction are provided between the wire harness ring and the sealing cover body. Each set of torsion tooth groups includes an upper torsion tooth and a lower torsion tooth arranged in a circumferential dislocation. The upper torsion tooth protrudes downward from the bottom end of the sealing cover body, and the lower torsion tooth protrudes upward from the top end of the wire harness ring. The unsealing posts are provided at the axial ends of the upper torsion tooth and / or the lower torsion tooth.

[0040] A nozzle assembly, applicable to a flexible packaging container, includes a nozzle part and the above-mentioned safety cap;

[0041] The nozzle part is fixedly installed on the flexible packaging container, a part of the nozzle part is wrapped and fixed inside the flexible packaging container, and another part of the nozzle part is exposed outside the flexible packaging container and is screwed with the safety cap;

[0042] The sealing cover body is provided with a first screwing structure, the pipe orifice part is provided with a second screwing structure, the first screwing structure is adapted to the second screwing structure, the sealing cover body is screwed to the pipe orifice part, and the sealing cover body covers and seals the discharge port of the pipe orifice part.

[0043] The pipe orifice part is provided with an axial gap for the axial movement of the beam ring, and the beam ring is rotatably sleeved in the axial gap.

[0044] The safety cover is provided with at least one upper sliding seat at a position lower than the lower end of the first screwing structure, and the pipe orifice part is provided with at least one lower sliding seat at a position lower than the lower end of the second screwing structure.

[0045] When not opened, the sealing cover body is screwed to the pipe orifice part, and the upper sliding seat and the lower sliding seat intersect in a staggered manner along the outer peripheral direction of the pipe orifice part.

[0046] Preferably, the sealing cover body screwed to the pipe orifice part has a certain movement space along the axis of the pipe orifice part.

[0047] The lower sliding seat does not coincide with the second screwing structure in the axial direction of the pipe orifice part, and the lower sliding seat is located outside the second screwing structure; correspondingly, the upper sliding seat does not coincide with the first screwing structure in the axial direction of the safety cover, and the upper sliding seat is located outside the first screwing structure.

[0048] The lower edge of the outer side wall of the sealing cover body protrudes outward in the peripheral direction to form a circumferential ring protrusion, and the upper sliding seat is formed by protruding downward from the bottom surface of the circumferential ring protrusion.

[0049] The outer side wall of the pipe orifice part protrudes outward to form an upper ring protrusion part and a lower ring protrusion part which are distributed up and down, and the axial gap is formed between the upper ring protrusion part and the lower ring protrusion part; the top surface of the upper ring protrusion part protrudes upward to form the lower sliding seat.

[0050] The inner side wall of the sealing cover body is provided with at least one section of inner convex thread protruding towards its own central axis, and the inner convex thread serves as the first screwing structure; the outer side wall of the pipe orifice part is provided with at least one section of outer convex thread protruding away from its own central axis, and the outer convex thread serves as the second screwing structure; the inner convex thread and the outer convex thread are adapted to each other.

[0051] A blocking block is filled between the lower end part of the outer convex thread and the side wall of the lower sliding seat, the blocking block is located on the circumferential movement track of the inner convex thread outside the pipe orifice part, and the end part of the inner convex thread cannot pass through the blocking block.

[0052] There are at least two of the upper sliding seats, which are evenly distributed circumferentially along the side wall of the safety cover; there are at least two of the lower sliding seats corresponding to the upper sliding seats, and the lower sliding seats are evenly distributed circumferentially along the side wall of the pipe orifice part;

[0053] The sides of the upper sliding seat and the lower sliding seat that are in contact and friction with each other are inclined in a matching manner, and are respectively set as an upper guiding inclined surface and a lower guiding inclined surface; the other side of the upper sliding seat opposite to the upper guiding inclined surface is set as an upper blocking straight surface, and the other side of the lower sliding seat opposite to the lower guiding inclined surface is set as a lower blocking straight surface, and the lower blocking straight surface prevents the upper sliding seat from passing through.

[0054] Preferably, the sealing cover body is a four-section cylindrical structure, and the sealing cover body includes a first cylinder, a second cylinder, a third cylinder and a fourth cylinder that are connected in sequence from top to bottom, and the inner diameters of the first cylinder, the second cylinder, the third cylinder and the fourth cylinder gradually increase;

[0055] The top of the first cylinder is closed, the bottom is open and is connected to the second cylinder, and the closed top surface of the first cylinder protrudes towards the inside of the cylinder to form an inner clamping ring wall, and the outer diameter of the inner clamping ring wall is adapted to the inner diameter of the discharge port of the pipe orifice part, and the inner side wall diameter of the first cylinder is adapted to the outer diameter of the discharge port of the pipe orifice part, and the inner side wall of the first cylinder and the inner clamping ring wall jointly clamp the inner and outer side walls of the discharge port of the pipe orifice part;

[0056] The closed top surface of the first cylinder also protrudes towards the inside of the cylinder to form a tip ring, and the tip ring is arranged between the inner clamping ring wall and the inner side wall of the first cylinder, and the tip of the tip ring tightly abuts the top end of the discharge port of the pipe orifice part;

[0057] The inner side wall of the second cylinder protrudes towards its own central axis to form the inner convex thread, and the inner convex thread does not exceed the inner side wall of the first cylinder;

[0058] There are two sections of the inner convex thread, and the two sections of the inner convex thread are centrosymmetric about the central axis of the second cylinder; correspondingly, two sections of outer convex thread also protrude from the outer side wall of the pipe orifice part towards the peripheral direction, and the two sections of the outer convex thread are adapted to the inner convex thread;

[0059] Two of the upper sliding seats are arranged inside the third cylinder, and the two upper sliding seats are centrosymmetric about the central axis of the third cylinder; several reinforcing blocks are also arranged inside the third cylinder, and the plurality of reinforcing blocks and the two upper sliding seats are evenly distributed circumferentially, and the reinforcing blocks and the upper sliding seats do not exceed the inner side wall of the second cylinder to avoid affecting the screw connection of the second cylinder, and the reinforcing blocks and the upper sliding seats are stuck on the top surface of the upper ring protrusion;

[0060] After the safety cap is installed on the nozzle, the sliding seat is located between the upper sliding seat and the reinforcing block, and the lower guiding inclined surface and the upper guiding inclined surface face each other; the reinforcing block cannot pass through the lower blocking straight surface;

[0061] The upper part of the barrel wall of the fourth barrel body is hollowed out at intervals to form a second break connection structure, and the lower part is provided as the binding ring;

[0062] The inner diameter of the fourth barrel body is larger than the outer diameter of the upper ring protrusion. The inner side wall of the binding ring protrudes towards the central axis to form a plurality of clamping blocks, and the clamping blocks are clamped in the axial gap.

[0063] Preferably, the outer side of the upper ring protrusion is provided with a ring inclined surface that slopes outward and downward from the central axis of the nozzle part; the bottom surface of the clamping block is an inclined surface that slopes outward and downward from the central axis of the sealing cover body and is adapted to the ring inclined surface;

[0064] The top surface of the clamping block is parallel or substantially parallel to the bottom surface of the upper ring protrusion;

[0065] The top surface of the lower ring protrusion protrudes upward to form at least two symmetric anti-deformation protrusions. The anti-deformation protrusions are distributed circumferentially and are located inside the binding ring. The anti-deformation protrusions do not hinder the rotation of the binding ring;

[0066] A single anti-deformation protrusion is located between two clamping blocks. When the safety cap is not rotated forcefully, the rotation of the clamping block is restricted by the anti-deformation protrusion;

[0067] A limiting base piece is arranged in parallel below the lower ring protrusion on the outer side of the nozzle part, and the bottom surface of the limiting base piece contacts the opening edge of the flexible packaging container;

[0068] A clamping neck groove is formed between the limiting base piece and the lower ring protrusion. A pressing patch part is arranged below the limiting base piece, and the surface of the pressing patch part has raised stripes.

[0069] Advantages of the present invention:

[0070] First of all, the present invention sets the connecting wire harness to keep the safety cap and the container connected after opening, preventing children from accidentally swallowing, which is the first layer of safety insurance. At the same time, it avoids the sealing cover body being discarded alone and is convenient for recycling;

[0071] Secondly, considering that even if there is a connecting wire harness, there may still be unexpected situations that cause the connecting wire harness to break (for example, being forcibly torn off during repeated play by children), and then the present invention is completely separated from the container. Therefore, the present invention is also provided with a widened wall, which can effectively increase the volume of the present invention. The size standard of the widened wall is much larger than the respiratory tract of ordinary young children. Even if a child swallows the present invention with a broken connecting wire harness into the mouth, it will be impossible to swallow it into the respiratory tract due to its too large volume, thus avoiding the risk of suffocation. This is designed for objects that cannot swallow the present invention, which is the second layer of safety insurance;

[0072] Furthermore, considering that older children, teenagers or pets may also accidentally swallow the present invention in some unexpected situations. Therefore, the present invention is also provided with the axial air passage and the radial air passage for air flow. In extreme cases, even if the present invention is accidentally swallowed, it can still maintain breathing until the object that has swallowed it seeks medical treatment, avoiding the risk of suffocation. This is designed for objects that can swallow the present invention, which is the third layer of safety insurance;

[0073] Finally, the connecting wire harness of the present invention is "side - hidden", that is, it does not extend beyond the outer side of the widened wall, that is, the outer peripheral dimension of the lid remains basically unchanged. The original production line can basically continue to be used without changing the "cap sorting" production line, the cap - installing gap, and there is no protruding structure affecting the grasping of the mechanical claw, etc., effectively controlling the cost of producing new products; at the same time, during the processes of packaging, transportation, shelving, etc., the "side - hidden" connecting wire harness is not easily scratched or pulled externally, avoiding breakage, scratches, burrs, etc. of the connecting wire harness and ensuring the packaging quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1 One of the structural schematic diagrams of the safety cap of the present invention;

[0075] Figure 2 Another structural schematic diagram of the safety cap of the present invention;

[0076] Figure 3 Another structural schematic diagram of the safety cap of the present invention;

[0077] Figure 4 The bottom view of the safety cap of the present invention;

[0078] Figure 5 One of the structural schematic diagrams of the nozzle assembly of the present invention;

[0079] Figure 6 For Figure 5 The enlarged view at A of;

[0080] Figure 7 Another structural schematic diagram of the nozzle assembly of the present invention;

[0081] Figure 8 For Figure 7 Enlarged view at position B;

[0082] Figure 9 Schematic diagram of unsealing of the nozzle assembly of the present invention;

[0083] Figure 10 Schematic diagram III (partial structure removed) of the structure of the nozzle assembly of the present invention;

[0084] Figure 11 Schematic diagram of the structure of the pipe orifice part of the present invention;

[0085] Figure 12 Cross-sectional view of the nozzle assembly of the present invention;

[0086] Figure 13 Schematic diagram IV of the structure of the safety cap of the present invention;

[0087] Figure 14 Schematic diagram V of the structure of the safety cap of the present invention;

[0088] Figure 15 Schematic diagram VI of the structure of the safety cap of the present invention;

[0089] Figure 16 Schematic diagram VII of the structure of the safety cap of the present invention.

[0090] Reference numerals

[0091] 1. Sealing cover body; 101. Upper sliding seat; 101a. Upper guiding inclined surface; 101b. Upper blocking straight surface; 102. Inner convex thread; 103. Main positioning point; 104. Sub-positioning point; 105. Inner clamping ring wall; 106. Tip ring; 107. Reinforcing block; 108. Upper torsion tooth;

[0092] 2. Arc-shaped piece;

[0093] 3. Wall expansion; 301. Elastic strip part; 302. C-shaped bottom; 303. Opening;

[0094] 4. Connecting wire harness; 401. First end; 402. Second end; 403. Bending section; 403a. Turning part;

[0095] 5. First break point connection structure; 501. Easy-breaking tab; 502. Injection-molded end seat;

[0096] 6. Bunching ring; 601. Clamping block; 601a. Inclined surface; 602. Lower torsion tooth;

[0097] 7. Second break point connection structure; 701. Unsealing post;

[0098] 8. Pipe orifice part; 801. Lower sliding seat; 801a. Lower guiding inclined surface; 801b. Lower blocking straight surface; 802. Outer convex thread; 803. Upper ring protrusion; 804. Lower ring protrusion; 805. Block; 806. Anti-deformation convex block; 807. Limit base piece; 808. Pressing patch part. Detailed implementation manner

[0099] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0100] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0101] Embodiment 1

[0102] Refer to Figures 1 to 16 , a safety cover includes an integrally formed sealing cover body 1 and an expanded wall 3. The sealing cover body 1 is screwed and installed at the opening 303 of the container and seals the opening 303 of the container. The expanded wall 3 is arranged around the sealing cover body 1. The expanded wall 3 is connected to the outer periphery of the sealing cover body 1 through a hollow structure, and an axial air passage is formed between the sealing cover body 1 and the expanded wall 3.

[0103] The expanded wall 3 is provided with at least one opening 303 penetrating through its side part to form a radial air passage. The opening 303 extends through to the end of the expanded wall 3 close to the container. At least one deformable and same-material connecting wire bundle 4 is arranged in the opening 303;

[0104] The first end 401 of the connecting wire bundle 4 is located at any position inside the outer surface of the expanded wall 3;

[0105] Since the present embodiment needs to be opened by rotation, in order to prevent the connection wire harness 4 from being wound around the sealing cover body 1 or the container opening 303 during the unscrewing operation, and also in order to prevent the design of the connection wire harness 4 from hindering the unscrewing operation, therefore, the second end 402 of the connection wire harness 4 extends downward and is directly or indirectly bound to the wire harness ring 6, and the wire harness ring 6 is rotatably connected to the container;

[0106] The connection wire harness 4 does not extend beyond the outside of the widened wall 3.

[0107] When the widened wall 3 is pinched and rotated to be opened, the wire harness ring 6 rotatably connected to the container enables the connection wire harness 4 to rotate along with the widened wall 3, preventing the design of the connection wire harness 4 from hindering the opening operation; when the sealing cover body 1 is unscrewed and separated from the container, the wire harness ring 6 still remains rotatably connected to the container and maintains the connection between the sealing cover body 1 and the widened wall 3 through the connection wire harness 4.

[0108] First of all, in the present embodiment, the connection wire harness 4 is provided to keep the safety cover and the container connected after opening, preventing children from accidentally swallowing, which is the first layer of safety insurance. At the same time, it avoids the sealing cover body 1 being discarded alone, facilitating recycling;

[0109] Secondly, considering that even if the connection wire harness 4 is provided for connection, there may still be accidental situations where the connection wire harness 4 breaks (such as being forcefully torn off during repeated play by children, etc.), and then the present embodiment is completely separated from the container. Therefore, the present embodiment is also provided with a widened wall 3, and the widened wall 3 can effectively increase the volume of the present embodiment. The size standard of the widened wall 3 is much larger than the respiratory tract of ordinary young children. Even if a child accidentally swallows the present embodiment with the connection wire harness 4 broken into the mouth, it will be impossible to swallow it into the respiratory tract due to its too large volume, avoiding the risk of suffocation. It is designed for objects who cannot swallow the present embodiment, which is the second layer of safety insurance;

[0110] Furthermore, considering that older children, teenagers or pets may also accidentally swallow the present embodiment in some unexpected situations. Therefore, the present embodiment is also provided with the axial air passage and the radial air passage for air flow. In extreme cases, even if the present embodiment is accidentally swallowed, it can maintain breathing until the object who has swallowed it seeks medical treatment, avoiding the risk of suffocation. It is designed for objects who can swallow the present embodiment, which is the third layer of safety insurance;

[0111] Finally, the connecting wire harness 4 of this embodiment is "side-hidden", that is, it does not extend beyond the outside of the expanded wall 3, that is, the outer peripheral dimension of the lid remains basically unchanged, and the original production line can basically continue to be used without modifying the "lid sorting" production line, the lid installation gap, and there is no protruding structure affecting the grasping of the mechanical claw, etc., effectively controlling the cost of producing new products; at the same time, during the processes of packaging, transportation, shelving, etc., the "side-hidden" connecting wire harness 4 is not easily scratched or pulled externally, avoiding breakage, scratches, burrs, etc. on the connecting wire harness 4 and ensuring the packaging quality of the product.

[0112] It should be noted that the lids originally produced by the applicant's production line have an outer peripheral dimension similar to that of the expanded wall 3. Therefore, the "side-hidden" design of the connecting wire harness 4 enables the original production line to continue to be used for production. However, the core design of this embodiment, the "side-hidden" connecting wire harness 4, is also applicable to other types of bottle caps, and basically no modification is required for the production line originally used to produce bottle caps without the connecting wire harness 4.

[0113] In actual production, the mechanical claw needs to extend into the axial air duct to grasp this embodiment. Therefore, the first end 401 of the connecting wire harness 4 protrudes from the top wall or side wall of the opening 303 towards the inside of the opening 303, and the connecting wire harness 4 does not extend beyond the inside of the expanded wall 3 to avoid interfering with the grasping of the mechanical claw.

[0114] The connecting wire harness 4 can extend in a straight-line structure within the opening 303 until it is connected to the container (as Figure 16 shown), but preferably, the part of the connecting wire harness 4 located within the opening 303 is provided with a bending structure. After this embodiment is opened, the connecting wire harness 4 is deformed and stretched to move this embodiment as far as possible away from the opening 303 of the container, avoiding contamination of the contents of the container or interfering with and scratching the user's lips or facial skin when the user drinks.

[0115] The connecting wire harness 4 can bend freely within the opening 303, and its shape is not particularly limited. At the same time, in order for the purchaser to intuitively judge whether the product has been opened, a first break connection structure 5 is provided between the bending structure and the top wall and / or side wall of the opening 303, and the break connection structure also has the function of restraining and maintaining the shape of the connecting wire harness 4 before opening.

[0116] The specific design of the bending structure and the first break connection structure includes but is not limited to Figures 13 to 16 as shown.

[0117] Specifically, the part of the connecting wire harness 4 of this embodiment within the opening 303 has several (3) U-shaped bends connected end to end (as Figure 1As shown, a number of the U-shaped bends are arranged axially along the safety cover. The advantages of this design are as follows: First, the length of the connecting wire harness 4 is extended as much as possible within the opening 303 with limited space. Second, the regular U-shaped arrangement facilitates mold opening and production. Finally, after stretching and deforming, the forces on each part of this design are relatively uniform compared to other bending structures, without obvious stress concentration areas and are not easily broken.

[0118] The U-shaped bend has two straight sections and a bending section 403 connecting the two straight sections. A first break connection structure is provided to connect the bending section 403 and the side wall of the opening 303.

[0119] More specifically, the first break connection structure includes several (3) breakable tabs 501. The thickness of the breakable tabs 501 gradually decreases from the wall surface of the opening 303 towards the direction of the connecting wire harness 4 (refer to Figure 8 ), so that the breakable tabs 501 after fracture remain on the wall surface of the opening 303 and are not easily touched, that is, to prevent the connecting wire harness 4 from carrying protruding breakable tabs 501 from scratching the user's skin after opening.

[0120] An injection molding end seat 502 slightly larger in size than the breakable tab 501 is further provided between the breakable tab 501 and the wall surface of the opening 303. The width of the mold part corresponding to the breakable tab 501 is extremely thin, and the injection molding slurry is not easy to flow in and fill. A groove structure corresponding to the injection molding end seat 502 is provided on the mold, which is beneficial to guiding the slurry to flow in and fill the mold position corresponding to the breakable tab 501.

[0121] In this embodiment, the structure of the expanded wall 3 corresponding to the top of the opening 303 is an elastic deformable elastic strip part 301, that is, the bottom surface of the elastic strip part 301 is the top wall of the opening 303. When the user pinches and opens the expanded wall 3, the expanded wall 3 provided with the elastic strip part 301 undergoes slight deformation, and the left and right side walls of the opening 303 simultaneously approach and squeeze the connecting wire harness 4, which is beneficial to breaking the breakable tab 501 and making the opening of this embodiment convenient and fast.

[0122] The connection part between the straight section and the bending section 403 is set as a turning part 403a. The width of the connecting wire harness 4 gradually decreases near the turning part 403a to ensure the flexibility of the connecting wire harness 4 during deformation and stretching, and gradually increases away from the turning part 403a to ensure the strength of the connecting wire harness 4.

[0123] In this embodiment, refer to Figure 3, the connecting wire harness 4 is arranged close to the inner side of the wall expansion 3, and the inner side surface of the connecting wire harness 4 is flush or substantially flush with the inner side surface of the wall expansion 3. When the present embodiment is twisted and unsealed, the connecting wire harness 4 tends to slide towards the inner side of the wall expansion 3, and compared with the tendency to slide to the outer side of the wall expansion 3, it is less likely to cause pulling on the connecting wire harness 4.

[0124] Considering that the first break connection structure connecting the connecting wire harness 4 and the wall expansion 3 in the circumferential direction is relatively easy to be knocked and disconnected, and in the process of selling the product, in a few cases, it will cause the misunderstanding that the product has been unsealed. Therefore, in the present embodiment, a second break connection structure 7 is provided between the sealing cover body 1 and the beam ring 6 to solve this problem. The second break connection structure 7 connecting the sealing cover body 1 and the beam ring 6 in the axial direction is not easily disconnected even if it is knocked, and can more accurately judge whether the product has been unsealed. The first break connection structure and the second break connection structure 7 will both break with the user's grasping, pressing and rotating unsealing action.

[0125] Specifically, the second break connection structure 7 includes a plurality of unsealing posts 701. The plurality of unsealing posts 701 are distributed along the circumference of the bottom end of the sealing cover member 1, and the thickness of the unsealing posts 701 gradually decreases near the sealing cover body 1 (refer to Figure 6 ), so that the broken unsealing posts 701 are retained on the beam ring 6 as much as possible and are not easily touched, that is, to prevent the outer convex unsealing posts 701 on the edge of the sealing cover body 1 from scratching the user's skin after unsealing.

[0126] In the present embodiment, the sealing cover body 1 is a circular cup-shaped structure with one end closed and one end open, and the main body of the wall expansion 3 is a tubular structure with both upper and lower ends open. The sealing cover body 1 is arranged inside the wall expansion 3 and is coaxial.

[0127] In the present embodiment, the outer wall structure of the wall expansion 3 is a plurality of anti-slip convex strips arranged in a circumferential array around the central axis. Each single anti-slip convex strip extends axially, so that when the fingers pinch the wall expansion 3, the friction is relatively large, the pinching is stable and not easy to slip, so as to facilitate applying force to open the present embodiment.

[0128] The outer edges of the anti-slip convex strips are all designed as arcs, without sharp angular structures, so that even if they are accidentally stuffed into the mouth, they will not scratch the inner wall of the oral cavity, and also avoid scratching the delicate skin of young children.

[0129] Specifically, a C-shaped bottom 302 is provided at the bottom of the plurality of anti-slip convex strips. The C-shaped bottom 302 connects all the anti-slip convex strips at the same time, enhancing the structural strength of the anti-slip convex strips and preventing them from being easily knocked and deformed, which affects the appearance quality of the package.

[0130] In this embodiment, the hollow structure is composed of several (4 pieces) arc-shaped pieces 2. The several arc-shaped pieces 2 are evenly distributed around the sealing cover body 1. A main positioning point 103 is provided at the center of the top surface of the sealing cover body 1. Two secondary positioning points 104 are symmetrically provided on both sides of the main positioning point 103. The secondary positioning points 104 correspond to the middle of the space (i.e., the axial air duct) between two arc-shaped pieces 2. The orientation of the safety cover is determined by three points, enabling the robotic claw to accurately reach in from the top surface of the safety cover for grasping. At the same time, the setting of the secondary positioning points 104 allows the robotic arm to accurately reach into the axial air duct and then grasp tightly to avoid collision. Then, this embodiment is rotationally installed on the pipe orifice part 8.

[0131] More specifically, a single arc-shaped piece 2 is arranged along the axis of the sealing cover body 1. The several arc-shaped pieces 2 all bend and protrude in the tightening direction. When the robotic claw rotationally installs this embodiment, the bent arc-shaped pieces 2 can guide the robotic claw to be basically stable in the middle of the arc-shaped pieces 2 for stable rotational installation.

[0132] Embodiment 2

[0133] A nozzle assembly, applicable to a flexible packaging container, includes a pipe orifice part 8 and Embodiment 1. The pipe orifice part 8 is fixedly installed on the flexible packaging container. Part of the pipe orifice part 8 is wrapped and fixed inside the flexible packaging container, and another part of the pipe orifice part 8 is exposed outside the flexible packaging container and is screwed to the safety cover.

[0134] Currently, there are mainly two disconnection methods for the break-point connection:

[0135] One is that when pulling out the pipe cap, the break-point connection is first thinned and then pulled off. Finally, the pipe cap is separated from the pipe orifice part 8, that is, the break-point connection is disconnected by applying a force along the axis of the pipe orifice part 8. The disadvantage of this method is that when pulling off the pipe cap, it is difficult for the user to timely receive the force at the moment when the break-point connection breaks, which is likely to cause the content to spill and affect the user experience. If the size of the break-point connection is reduced to avoid the spill problem, it may lead to the break-point connection being easily disconnected when the pipe cap is slightly rubbed by an external force during packaging and transportation, thus resulting in a misjudgment that the product has been opened.

[0136] The other is to apply a force along the circumferential direction of the pipe orifice part 8 to rotationally break the break-point connection. However, a relatively large torque needs to be applied to break the break-point connection by applying a force in the circumferential direction, which is not good for the user with less strength. If the size of the break-point connection is reduced to lower the difficulty of opening the cap, it may still cause the above-mentioned misjudgment that the product has been opened.

[0137] In this embodiment, the sealing cover body 1 is provided with a first screwing structure, and the pipe orifice part 8 is provided with a second screwing structure. The first screwing structure is adapted to the second screwing structure. The sealing cover body 1 is screwed to the pipe orifice part 8, and the sealing cover body 1 covers and seals the discharge port of the pipe orifice part 8;

[0138] The nozzle piece 8 is provided with an axial gap for the axial movement of the clamp ring 6, and the clamp ring 6 is rotatably sleeved in the axial gap;

[0139] The safety cover is provided with at least one upper slide seat 101 at a position lower than the lower end of the first rotation structure, and the nozzle piece 8 is provided with at least one lower slide seat 801 at a position lower than the lower end of the second rotation structure.

[0140] When the present embodiment is not opened, the sealing cover 1 is screwed to the nozzle piece 8 , and the upper slide seat 101 and the lower slide seat 801 are staggered and intersected along the outer circumference direction of the nozzle piece 8 .

[0141] Compared with the prior art, the present embodiment does not need to reduce the size of the breakpoint connection structure to solve the problems of easy spillage and difficult opening caused by the breakpoint being too thick. Instead, it is ensured that the breakpoint connection structure has a qualified thickness, that is, even if the tube cover is slightly scratched by external force during packaging and transportation, the breakpoint connection structure will not be easily disconnected, thereby avoiding the misjudgment that the product has been opened.

[0142] As for the problem that a thick breakpoint connection structure may cause difficulty in opening by circumferential torsion, the present embodiment solves the problem by providing an upper slide seat 101 and a lower slide seat 801. Specifically, when the user applies force to rotate the safety cover to open the seal, the safety cover first drives the clamping ring 6 to rotate until the upper slide seat 101 of the safety cover collides with the lower slide seat 801 of the nozzle piece 8 laterally; further increasing the applied force, the upper slide seat 101 "suddenly" slides up to the top of the lower slide seat 801 by friction, and the safety cover then "suddenly" moves upward axially, and the clamping ring 6 cannot move upward axially due to the constraint of the axial gap. Therefore, the second breakpoint connection structure 7 becomes thinner due to the axial tension, and the thinned second breakpoint connection structure 7 can reduce the force required for subsequent radial opening of the cover, and the safety cover continues to rotate upward along the screw-on structure, and the thinned breakpoint connection structure is subjected to radial tension, and the breakpoint connection structure is twisted and broken, and the safety cover rotates until it is separated from the nozzle piece 8, thus completing the opening.

[0143] In addition, the design of the upper slide 101 and the lower slide 801 is also conducive to preventing the safety cover from being accidentally opened by slight external force, because a strong force needs to be applied along the circumference to frictionally slide the upper slide 101 to the top of the lower slide 801, and the external force friction during packaging and transportation is generally disordered and relatively slight, and generally the upper slide 101 cannot be frictionally slid to the top of the lower slide 801.

[0144] Specifically, the sealing cover body 1 screwed onto the pipe orifice part 8 has a certain amount of movement space along the axial direction of the pipe orifice part 8, reserving movement space for the axial lifting of the sealing cover body 1. It should be noted that since the break connection structure is an extremely tiny structure even if designed to be of qualified thickness, this movement space is extremely small, that is, it basically does not affect the stable connection of the screwing structure.

[0145] The lower sliding seat 801 does not coincide with the second screwing structure in the axial direction of the pipe orifice part 8, and the lower sliding seat 801 is located outside the second screwing structure; correspondingly, the upper sliding seat 101 does not coincide with the first screwing structure in the axial direction of the safety cover, and the upper sliding seat 101 is located outside the first screwing structure. This avoids the design of the upper sliding seat 101 and the lower sliding seat 801 from affecting or hindering the upward or downward rotation of the safety cover, and is also beneficial for designing a mold that is convenient for demolding.

[0146] In this embodiment, upper and lower distributed upper ring protrusions 803 and lower ring protrusions 804 are formed by outward protrusion of the outer side wall of the pipe orifice part 8, and the axial gap is formed between the upper ring protrusion 803 and the lower ring protrusion 804.

[0147] Specifically, the top surface of the upper ring protrusion 803 protrudes upward to form the lower sliding seat 801.

[0148] Specifically, the lower edge of the outer side wall of the sealing cover body 1 protrudes outward in the circumferential direction to form a circumferential ring protrusion, and the upper sliding seat 101 is formed by downward protrusion from the bottom surface of the circumferential ring protrusion, thereby realizing that the upper sliding seat 101 does not coincide with the first screwing structure in the axial direction of the safety cover, and the upper sliding seat 101 is located outside the first screwing structure.

[0149] Specifically, at least one section of inner convex thread 102 protruding towards its own central axis is provided on the inner side wall of the sealing cover body 1, and the inner convex thread 102 serves as the first screwing structure;

[0150] At least one section of outer convex thread 802 protruding away from its own central axis is provided on the outer side wall of the pipe orifice part 8, and the outer convex thread 802 serves as the second screwing structure;

[0151] The inner convex thread 102 and the outer convex thread 802 are adapted to each other.

[0152] In this embodiment, at least two upper sliding seats 101 are provided, and they are evenly distributed in a circumferential direction along the side wall of the safety cover; at least two lower sliding seats 801 corresponding to the upper sliding seats 101 are provided, and the lower sliding seats 801 are evenly distributed in a circumferential direction along the side wall of the pipe orifice part 8. The evenly distributed upper sliding seats 101 and lower sliding seats 801 make the axial pulling force on all the unsealing connecting columns 701 relatively uniform during "sudden" lifting, ensuring that each unsealing connecting column 701 is thinned.

[0153] In this embodiment, the side surfaces of the upper sliding seat 101 and the lower sliding seat 801 that are in contact and friction with each other are inclined and adapted to each other, and are respectively set as the upper guiding inclined surface 101a and the lower guiding inclined surface 801a, so that the upper sliding seat 101 can slide to the top of the lower sliding seat 801 smoothly and quickly, reducing the force applied by the user, realizing the effect of "sudden" lifting at the same time, and indicating that this direction is the correct direction for opening the cover.

[0154] The other side surface of the upper sliding seat 101 opposite to the upper guiding inclined surface 101a is set as the upper blocking straight surface 101b, and the other side surface of the lower sliding seat 801 opposite to the lower guiding inclined surface 801a is set as the lower blocking straight surface 801b. The lower blocking straight surface 801b prevents the upper sliding seat 101 from passing through, so as to prompt the user that this direction is the wrong direction for opening the cover, remind the user to switch the rotation and opening direction, and at the same time in the capping installation program on the assembly line, the upper and lower blocking straight surfaces can prevent over-rotation when the mechanical claw caps the bottle, thereby damaging the sealing cover body.

[0155] In this embodiment, at least one section of the outer side wall of the pipe orifice part 8 protrudes outward to form an external convex thread 802, and the external convex thread 802 serves as the first screwing structure; at least one section of the inner side wall of the safety cover is provided with an internal convex thread 102 protruding inward, and the internal convex thread 102 serves as the second screwing structure.

[0156] Specifically, a blocking block 805 (refer to Figure 11 ) is filled between the lower end of the external convex thread 802 and the side wall of the lower sliding seat 801. The blocking block 805 is located on the circumferential movement track of the internal convex thread outside the pipe orifice part 8, and the end of the internal convex thread cannot pass through the blocking block 805. Considering that the pipe orifice part 8 is essentially a small part, and the lower sliding seat 801 above it is even more miniature, when the user caps the bottle incorrectly or the mechanical hand caps the bottle during installation, the impact of the upper sliding seat 101 on the lower sliding seat 801 is relatively large. Designing the blocking block 805 enhances the structural strength of the lower sliding seat 801 and also has the function of sharing the impact.

[0157] Specifically, the sealing cover body 1 of this embodiment is a four-section cylinder structure. The sealing cover body 1 includes a first cylinder, a second cylinder, a third cylinder and a fourth cylinder that are connected in sequence from top to bottom. The inner diameters of the first cylinder, the second cylinder, the third cylinder and the fourth cylinder gradually increase.

[0158] The top of the first cylinder is closed, the bottom is open and connected to the second cylinder. The closed top surface of the first cylinder protrudes inward to form an inner clamping ring wall 105. The outer diameter of the inner clamping ring wall 105 is adapted to the inner diameter of the discharge port of the pipe orifice member 8, and the inner diameter of the inner side wall of the first cylinder is adapted to the outer diameter of the discharge port of the pipe orifice member 8. The inner side wall of the first cylinder and the inner clamping ring wall 105 jointly clamp the inner and outer side walls of the discharge port of the pipe orifice member 8, thereby sealing the discharge port of the pipe orifice member 8 and preventing the packaging contents from overflowing.

[0159] The closed top surface of the first cylinder also protrudes inward to form a tip ring 106. The tip ring 106 is arranged between the inner clamping ring wall 105 and the inner side wall of the first cylinder. The tip of the tip ring 106 tightly abuts the top end of the discharge port of the pipe orifice member 8, further enhancing the sealing and anti-overflow effects.

[0160] The inner side wall of the second cylinder protrudes toward its central axis to form the inner convex thread 102. The inner convex thread 102 does not exceed the inner side wall of the first cylinder to avoid affecting the entry of the discharge port of the pipe orifice member 8 into the first cylinder for sealing.

[0161] The inner convex thread 102 has two sections, and the two sections of the inner convex thread 102 are centrosymmetric about the central axis of the second cylinder, which can be aligned and started to be screwed more quickly, and the direction is stable during the screwing process and is not prone to skewing.

[0162] Correspondingly, the outer side wall of the pipe orifice member 8 also protrudes outward to form two sections of outer convex threads 802, and the two sections of the outer convex threads 802 are adapted to the inner convex thread 102.

[0163] Two upper sliding seats 101 are arranged inside the third cylinder, and the two upper sliding seats 101 are centrosymmetric about the central axis of the third cylinder. A number of (specifically 6) strengthening blocks 107 are also arranged inside the third cylinder. The plurality of strengthening blocks 107 and the two upper sliding seats 101 are evenly distributed in a circular pattern. The strengthening blocks 107 and the upper sliding seats 101 do not exceed the inner side wall of the second cylinder to avoid affecting the screwing of the second cylinder. The strengthening blocks 107 and the upper sliding seats 101 are stuck on the top surface of the upper ring protrusion 803.

[0164] After the safety cap is installed on the nozzle, the lower sliding seat 801 is located between the upper sliding seat 101 and the strengthening block 107 (refer to Figure 10 )), and the lower guiding inclined surface 801a and the upper guiding inclined surface 101a face each other. The strengthening blocks 107 cannot pass through the lower blocking straight surface 801b and are arranged relatively densely, which can more quickly prompt the user that the rotation and opening direction is incorrect, and then change the direction of unscrewing the cap.

[0165] The upper part of the barrel wall of the fourth barrel body is hollowed out at intervals to form the second break connection structure 7, and the lower part is set as the beam ring 6, so as to realize the design that the beam ring 6 and the sealing cover body 1 are connected through the second break connection structure 7, which is convenient for integral molding production.

[0166] The inner diameter of the fourth barrel body is slightly larger than the outer diameter of the upper ring protrusion 803. The inner side wall of the beam ring 6 protrudes towards the central axis to form a number of (specifically 4) clamping blocks 601, and the clamping blocks 601 are clamped in the axial gap, that is, below the upper ring protrusion 803.

[0167] As can be seen from the above, in this embodiment, the interior of the sealing cover body 1 is designed as a "stepped" structure, and the functions of each barrel body structure do not interfere with each other and cooperate with each other, and at the same time, it is beneficial to design a mold that is convenient for demolding.

[0168] In this embodiment, at least two sets of torsion tooth groups are arranged along the circumferential direction between the beam ring 6 and the sealing cover body 1. Each set of the torsion tooth groups includes an upper torsion tooth 108 and a lower torsion tooth 602 that are arranged out of position along the circumferential direction. The upper torsion tooth 108 protrudes downward from the bottom end of the sealing cover body 1, and the lower torsion tooth 602 protrudes upward from the top end of the beam ring 6. The opening column 701 is arranged at the axial end of the upper torsion tooth 108 and / or the lower torsion tooth 602.

[0169] During the process of rotating and opening the cover, the beam ring 6 will be deformed to a certain extent due to pulling, and it is difficult for the deformed beam ring 6 to continue to rotate with the sealing cover body 1. That is, the upper torsion tooth 108 in this state hardly moves or rotates at a speed much lower than that of the sealing cover body 1. Furthermore, the upper torsion tooth 108 collides with the lower torsion tooth 602, and the rotation of the upper torsion tooth 108 is blocked by the lower torsion tooth 602, which has an auxiliary effect of making the opening column 701 twist and deform and thus easily break.

[0170] More specifically, the outer side of the upper ring protrusion 803 is provided with a ring inclined surface that slopes outward and downward from the central axis of the pipe orifice part 8, which is beneficial to guiding the clamping block 601 to slide down, and then being installed and clamped in the axial gap.

[0171] The bottom surface of the clamping block 601 is an inclined surface 601a that slopes outward and downward from the central axis of the sealing cover body 1, which cooperates with the above-mentioned ring inclined surface to make the installation of the clamping block 601 smoother.

[0172] The top surface of the clamping block 601 is parallel or substantially parallel to the bottom surface of the upper ring protrusion 803, so that the beam ring 6 after installation cannot easily escape from the axial gap, thereby ensuring that the safety cover is firmly connected to the pipe orifice part 8; at the same time, since the beam ring 6 repeatedly collides with the upper ring convex during the process of opening / closing the cover multiple times, this design makes the collision between the two be surface contact, which can better disperse the impact force.

[0173] Specifically, the top surface of the lower ring protrusion 804 protrudes upward to form at least two symmetrical anti-deformation protrusions 806, and the anti-deformation protrusions 806 are distributed circumferentially and located on the inner side of the clamp ring. The anti-deformation protrusions 806 do not hinder the rotation of the clamp ring, but have a restraining effect on the deformation of the clamp ring during the pulling process, thereby preventing the clamp ring from excessive deformation.

[0174] The single anti-deformation protrusion 806 is located between the two clamping blocks 601 (refer to Figure 10 ), when the safety cover is rotated without strong force, the rotation of the clamping block 601 is limited by the anti-deformation protrusion 806, which is similar to the function of the upper and lower slide seats mentioned above, and avoids the nozzle piece 8 and the safety cover from rotating relative to each other at an excessive angle as much as possible to maintain the stability of the installation. It should be noted that once the safety cover is rotated by external force, the inclined surface 601a of the clamping block 601 can slide over the clamping block 601, and the design of the anti-deformation protrusion 806 will not affect the rotation of the clamp ring 6.

[0175] In this embodiment, a limiting substrate 807 is provided on the outer side of the nozzle piece 8 parallel to and below the lower ring protrusion 804, and the bottom surface of the limiting substrate 807 contacts the edge of the opening 303 of the soft packaging container, so as to indicate the installation position of the nozzle piece 8 on the soft packaging container and prevent the nozzle piece 8 from falling into the soft packaging container during processing.

[0176] The safety cover installed on the nozzle piece 8 should no longer be subjected to force as a gripping position, so a clamping neck groove is formed between the limiting base plate 807 and the lower ring protrusion 804 for clamping the transported product.

[0177] A pressing sheet 808 is provided below the limiting substrate 807 for bonding and sealing with the flexible packaging bag. The surface of the pressing sheet 808 has raised stripes, which is beneficial to improving the firmness of bonding.

[0178] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also change and modify the above implementation modes. Therefore, the present invention is not limited to the specific implementation modes disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. A safety cap, characterized in that, It includes an integrally formed sealing cover body and a flared wall. The sealing cover body is screwed and installed at the opening of the container to seal the opening of the container. The flared wall is arranged around the sealing cover body. The flared wall is connected to the outer periphery of the sealing cover body through a hollow structure, and an axial air passage is formed between the sealing cover body and the flared wall; The flared wall is provided with at least one opening penetrating its side to form a radial air passage. The opening extends through to the end of the flared wall close to the container, and at least one deformable and same-material connection wire bundle is arranged in the opening; The first end of the connection wire bundle is located at any position inside the outer surface of the flared wall, and the second end of the connection wire bundle extends downward and is directly or indirectly bound to a bundle ring, and the bundle ring is rotatably connected to the container; The part of the connection wire bundle located in the opening is provided with a bending structure, and a first break connection structure is connected between the bending structure and the top wall and / or side wall of the opening; The part of the connection wire bundle in the opening has a number of U-shaped bends connected end to end, and several of the U-shaped bends are arranged along the axis of the safety cover; The connection wire bundle does not extend beyond the outside of the flared wall; The structure of the flared wall corresponding to the top of the opening is an elastic deformable elastic strip part; When the flared wall is grasped and rotated to open, the flared wall provided with the elastic strip part undergoes slight deformation, and the left and right side walls of the opening simultaneously approach and squeeze the connection wire bundle. The bundle ring rotatably connected to the container enables the connection wire bundle to rotate along with the flared wall; when the sealing cover body is unscrewed and separated from the container, the bundle ring still remains rotatably connected to the container and keeps connecting the sealing cover body and the flared wall through the connection wire bundle.

2. The safety cover according to claim 1, characterized in that, The first end of the connection wire bundle protrudes from the top wall or side wall of the opening towards the inside of the opening, and the connection wire bundle does not extend beyond the inside of the flared wall; The connection wire bundle is arranged close to the inside of the flared wall, and the inner side surface of the connection wire bundle is flush or substantially flush with the inner side surface of the flared wall.

3. The safety cap according to claim 1 or 2, characterized in that, The U-shaped bend has two straight sections and a bending section connecting the two straight sections, and a first break connection structure is connected between the bending section and the side wall of the opening; The connection part of the straight section and the bending section is set as a turning part. The width of the connection wire bundle gradually decreases near the turning part and gradually increases away from the turning part; The first break connection structure includes a number of easily broken connecting pieces, and the thickness of the easily broken connecting pieces gradually decreases from the wall surface of the opening towards the connection wire bundle; An injection molding end seat larger than the easily broken connecting piece is also arranged between the easily broken connecting piece and the wall surface of the opening.

4. The safety cap according to claim 3, characterized in that, The outer wall structure of the flared wall is a number of anti-slip convex strips circumferentially arrayed around the central axis. Each single anti-slip convex strip extends axially, and the outer edges of the anti-slip convex strips are all arc-shaped designs. The bottoms of a number of the anti-slip convex strips are provided with a C-shaped bottom, and the C-shaped bottom connects all the anti-slip convex strips at the same time.

5. The safety cap according to claim 1, characterized in that, The hollow structure is a number of arc-shaped pieces, and the number of arc-shaped pieces are evenly distributed around the sealing cover body. A main positioning point is provided at the center of the top surface of the sealing cover body, and two sub-positioning points are symmetrically arranged on both sides of the main positioning point. The sub-positioning points correspond to the middle of the space between two arc-shaped pieces; A single one of the arc-shaped pieces is arranged along the axial direction of the sealing cover body, and a plurality of the arc-shaped pieces are all bent and protruded in the screwing direction.

6. The safety cap according to claim 1, characterized in that, A second break connection structure is provided between the sealing cover body and the beam ring; The second break connection structure includes a plurality of unsealing posts, and the thickness of the part of the unsealing post close to the sealing cover body gradually decreases; At least two sets of torsion tooth groups distributed along the circumferential direction are provided between the beam ring and the sealing cover body. Each set of the torsion tooth groups includes an upper torsion tooth and a lower torsion tooth arranged in a circumferentially staggered manner. The upper torsion tooth is formed by protruding downward from the bottom end of the sealing cover body, and the lower torsion tooth is formed by protruding upward from the top end of the beam ring. The unsealing post is provided at the axial end of the upper torsion tooth and / or the lower torsion tooth.

7. A nozzle assembly, applicable to a flexible packaging container, characterized in that, It includes a pipe orifice part and the safety cap according to any one of claims 1 to 5; The pipe orifice part is fixedly installed on the flexible packaging container. A part of the pipe orifice part is wrapped and fixed inside the flexible packaging container, and another part of the pipe orifice part is exposed outside the flexible packaging container and is screwed to the safety cap; The sealing cover body is provided with a first screwing structure, and the pipe orifice part is provided with a second screwing structure. The first screwing structure is adapted to the second screwing structure. The sealing cover body is screwed to the pipe orifice part, and the sealing cover body covers and seals the discharge port of the pipe orifice part; The pipe orifice part is provided with an axial gap for the axial movement of the beam ring, and the beam ring is rotatably sleeved in the axial gap; The safety cap is provided with at least one upper sliding seat at a position lower than the lower end of the first screwing structure, and the pipe orifice part is provided with at least one lower sliding seat at a position lower than the lower end of the second screwing structure; When not opened, the sealing cover body is screwed to the pipe orifice part, and the upper sliding seat and the lower sliding seat are misaligned and intersect along the outer circumferential direction of the pipe orifice part.

8. The nozzle assembly according to claim 7, wherein, The sealing cover body screwed to the pipe orifice part has a certain movement space along the axial direction of the pipe orifice part; The lower sliding seat does not coincide with the second screwing structure in the axial direction of the pipe orifice part, and the lower sliding seat is located outside the second screwing structure; correspondingly, the upper sliding seat does not coincide with the first screwing structure in the axial direction of the safety cap, and the upper sliding seat is located outside the first screwing structure; The lower edge of the outer side wall of the sealing cover body protrudes outward in the circumferential direction to form a circumferential ring protrusion, and the upper sliding seat is formed by protruding downward from the bottom surface of the circumferential ring protrusion; The outer side wall of the pipe orifice part protrudes outward to form an upper ring protrusion part and a lower ring protrusion part distributed up and down, and the axial gap is formed between the upper ring protrusion part and the lower ring protrusion part; the top surface of the upper ring protrusion part protrudes upward to form the lower sliding seat; The inner side wall of the sealing cover body is provided with at least one section of inner convex thread protruding towards its own central axis, and the inner convex thread serves as the first screwing structure; the outer side wall of the pipe orifice part is provided with at least one section of outer convex thread protruding away from its own central axis, and the outer convex thread serves as the second screwing structure; the inner convex thread and the outer convex thread are adapted to each other; A blocking block is filled between the lower end part of the outer convex thread and the side wall of the lower sliding seat. The blocking block is located on the circumferential movement track of the inner convex thread outside the pipe orifice part, and the end part of the inner convex thread cannot pass through the blocking block; There are at least two upper sliding seats, which are evenly distributed circumferentially along the side wall of the safety cover; correspondingly, there are at least two lower sliding seats, which are evenly distributed circumferentially along the side wall of the pipe orifice part. The sides of the upper sliding seat and the lower sliding seat that are in contact and friction with each other are inclined and adapted to each other, and are respectively set as an upper guiding inclined surface and a lower guiding inclined surface; the other side of the upper sliding seat opposite to the upper guiding inclined surface is set as an upper blocking straight surface, and the other side of the lower sliding seat opposite to the lower guiding inclined surface is set as a lower blocking straight surface, and the lower blocking straight surface prevents the upper sliding seat from passing through.

9. The nozzle assembly according to claim 8, characterized in that, The sealing cover body is a four-section cylindrical structure, which includes a first cylinder body, a second cylinder body, a third cylinder body and a fourth cylinder body connected in sequence from top to bottom, and the inner diameters of the first cylinder body, the second cylinder body, the third cylinder body and the fourth cylinder body gradually increase. The top of the first cylinder body is closed, the bottom is open and connected to the second cylinder body. The closed top surface of the first cylinder body protrudes inward to form an inner clamping ring wall, and the outer diameter of the inner clamping ring wall is adapted to the inner diameter of the discharge port of the pipe orifice part. The inner side wall diameter of the first cylinder body is adapted to the outer diameter of the discharge port of the pipe orifice part. The inner side wall of the first cylinder body and the inner clamping ring wall jointly clamp the inner and outer side walls of the discharge port of the pipe orifice part. The closed top surface of the first cylinder body also protrudes inward to form a tip ring, and the tip ring is arranged between the inner clamping ring wall and the inner side wall of the first cylinder body, and the tip of the tip ring tightly abuts the top end of the discharge port of the pipe orifice part. The inner side wall of the second cylinder body protrudes toward its own central axis to form the inner convex thread, and the inner convex thread does not exceed the inner side wall of the first cylinder body. There are two sections of the inner convex thread, and the two sections of the inner convex thread are centrosymmetric about the central axis of the second cylinder body; correspondingly, the outer side wall of the pipe orifice part also protrudes outward to form two sections of the outer convex thread, and the two sections of the outer convex thread are adapted to the inner convex thread. Two upper sliding seats are arranged inside the third cylinder body, and the two upper sliding seats are centrosymmetric about the central axis of the third cylinder body; several strengthening blocks are also arranged inside the third cylinder body, and the plurality of strengthening blocks and the two upper sliding seats are evenly distributed circumferentially. The strengthening blocks and the upper sliding seats do not exceed the inner side wall of the second cylinder body to avoid affecting the screwing connection of the second cylinder body, and the strengthening blocks and the upper sliding seats are stuck on the top surface of the upper ring protrusion part. After the safety cover is installed on the nozzle, the lower sliding seat is located between the upper sliding seat and the strengthening block, and the lower guiding inclined surface and the upper guiding inclined surface face each other; the strengthening block cannot pass through the lower blocking straight surface. The upper part of the barrel wall of the fourth cylinder body is hollowed out at intervals to form a second break connection structure, and the lower part is set as the binding ring. The inner diameter of the fourth cylinder body is larger than the outer diameter of the upper ring protrusion part. The inner side wall of the binding ring protrudes toward the central axis to form several clamping blocks, and the clamping blocks are stuck in the axial gap.

10. The nozzle assembly according to claim 9, characterized in that, The outer side of the upper ring protrusion part is provided with a ring inclined surface that slopes outward and downward from the central axis of the pipe orifice part; the bottom surface of the clamping block is an inclined surface that slopes outward and downward from the central axis of the sealing cover body and is adapted to the ring inclined surface. The top surface of the clamping block is parallel or substantially parallel to the bottom surface of the upper ring protrusion; The top surface of the lower ring protrusion protrudes upward to form at least two symmetric anti-deformation bumps, which are circumferentially distributed and located inside the beam ring, and the anti-deformation bumps do not hinder the rotation of the beam ring; A single anti-deformation bump is located between two clamping blocks. When the safety cover is not rotated forcefully, the rotation of the clamping block is restricted by the anti-deformation bump; A limiting substrate is arranged in parallel below the lower ring protrusion on the outer side of the pipe orifice part, and the bottom surface of the limiting substrate contacts the opening edge of the flexible packaging container; A clamping neck groove is formed between the limiting substrate and the lower ring protrusion, a pressing patch part is arranged below the limiting substrate, and the surface of the pressing patch part has raised stripes.

Images