Safe suction nozzle assembly beneficial to recovery

Abstract

The safe suction nozzle assembly comprises a suction nozzle pipe, a suction nozzle cover, a pipe clamping ring and a surrounding rope, and the suction nozzle cover comprises an inner pipe cover and an outer expansion cover; the inner tube cover is screwed to a tube opening in one end of the suction nozzle tube, the outer expansion cover is open up and down, the inner diameter of the outer expansion cover is larger than the outer diameter of the inner tube cover, a hollow structure is arranged between the outer expansion cover and the inner tube cover for connection, and a Z-direction air channel is formed between the outer expansion cover and the inner tube cover; a pipe clamping ring is arranged below the inner pipe cover, and the pipe clamping ring is rotatably clamped on the suction nozzle pipe; a surrounding rope is arranged between the inner pipe cover and the pipe clamping ring and surrounds the peripheral wall of the suction nozzle pipe by at least one half of the circumference, the first end of the surrounding rope extends upwards to be connected to the pipe cover, the second end of the surrounding rope extends downwards to be connected to the pipe clamping ring, and the direction, extending towards the second end, of the first end of the surrounding rope along the structure of the surrounding rope is the same as the unscrewing direction of the inner pipe cover. The inner tube cover is connected with the tube clamping ring after being uncovered through the surrounding rope and then is connected with the suction nozzle tube, so that recycling is convenient, production is easy, and high safety is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of suction nozzles, and in particular relates to a safe suction nozzle assembly that is conducive to recycling. Background Art

[0002] The suction nozzle is mainly used in flexible packaging bags with a mouth. The flexible packaging bag combined with the suction nozzle is called a suction nozzle bag. It is mainly used for filling liquid foods such as beverages and jellies. Compared with rigid packaging, it has the advantages of being convenient for sucking and carrying.

[0003] In order to prevent the nozzle from being contaminated and food from spilling, the nozzle is always sealed with a nozzle cover. However, most existing nozzle covers are completely separated from the nozzle bag after opening. One of the main application areas of the nozzle bag is the field of children's food. The nozzle cover that is separated separately after opening is easy for children to accidentally swallow, causing suffocation, posing a major safety hazard.

[0004] On the other hand, Europe and the United States are the applicant's main sales markets. Based on environmental protection and recycling considerations, the EU Disposable Plastics Directive 2019 / 204 requires that from July 2024, the bottle caps of plastic beverage bottles must be connected to the bottle body during their entire use process. The nozzle cover separated from the soft nozzle bag is easily discarded separately, making it difficult to recycle the nozzle cover and the nozzle bag together, which does not meet the EU requirements.

[0005] In order to solve the above problems, the applicant developed and designed a nozzle cover to meet environmental protection requirements and have high safety. The application was for a patent technology with publication number CN220866077U. The patent technology discloses a nozzle cover, including an inner cover and a safety ring, and an axial air channel is formed between the inner cover and the safety ring; the safety ring is provided with at least one notch penetrating its side to form a radial air channel, and the notch extends through the lower end of the nozzle, and at least one deformable strap is provided in the notch.

[0006] The applicant's prior application opened a notch on the side wall of the nozzle cover to accommodate the strap. The strap prevented the nozzle cover from being completely separated from the soft packaging strap, thereby avoiding the nozzle cover from being discarded alone as much as possible, which is conducive to recycling. In addition, the notch space can accommodate a longer strap, so that the nozzle cover can be kept away from the consumer's face after opening to avoid scratches.

[0007] However, in order to ensure that the product has a longer strap, the strap structure design of the prior application has multiple bends, which has certain production difficulties. Therefore, the present invention aims to provide a safe suction nozzle assembly with relatively low production difficulty and easy recycling. Summary of the Invention

[0008] In response to the problems in the related art, the present invention proposes a safe suction nozzle assembly that is easy to recycle, so as to overcome the above-mentioned technical problems existing in the existing related art.

[0009] The technical solution of the present utility model is achieved as follows:

[0010] A safe suction nozzle assembly that is easy to recycle, comprising a suction nozzle tube and a suction nozzle cover, further comprising a tube clamping ring and a bendable surrounding rope, wherein the suction nozzle cover comprises an inner tube cover and an outer expansion cover;

[0011] The inner tube cover is detachably screwed onto one end of the nozzle tube and seals the nozzle, while the other end of the nozzle tube communicates with the interior of the flexible packaging bag. The outer cover is open at the top and bottom and has an inner diameter larger than the outer diameter of the inner tube cover. The outer cover surrounds the inner tube cover and is coaxially arranged. A hollow structure is provided between the outer cover and the inner tube cover to connect them, forming a Z-direction airway between the outer cover and the inner tube cover.

[0012] The clamping ring is provided below the inner tube cover and is rotatably engaged with the nozzle tube;

[0013] The surrounding rope is provided between the inner tube cover and the tube clamping ring. The surrounding rope surrounds at least half of the circumference of the outer peripheral wall of the nozzle tube. The first end of the surrounding rope extends upward to be connected to the tube cover, and the second end of the surrounding rope extends downward to be connected to the tube clamping ring. The direction in which the first end of the surrounding rope extends along its own structure to the second end is the same as the direction in which the inner tube cover is unscrewed.

[0014] When opening the cover, the outer cover is pinched and force is applied, and then the inner tube cover is separated from the nozzle tube, and the clamping ring is still connected to the nozzle tube in rotation. The inner tube cover is connected to the clamping ring through the surrounding rope, and then the nozzle cover is connected to the nozzle tube.

[0015] Preferably, the first end of the surrounding rope is connected to the bottom surface of the inner tube cover, and a plurality of upper anti-theft breakpoint connections are provided between the bottom surface of the inner tube cover and the surrounding rope;

[0016] The second end of the surrounding rope is connected to the top surface of the clamping tube ring, and a plurality of lower anti-theft breakpoint connections are provided between the top surface of the clamping tube ring and the surrounding rope;

[0017] When the nozzle cover is opened by force, the upper anti-theft breaking point and the lower anti-theft breaking point are broken by the force during the opening operation.

[0018] Preferably, first notches are respectively formed on two opposite sides of the lower portion of the outer expansion cover, and the two first notches penetrate the outer expansion cover in the X direction and are parallel to each other, forming an X-direction airway;

[0019] The top ends of the two first notches are higher than the upper anti-theft breakpoint, and the two first notches penetrate the outer expansion cover outward, and the first notches expose the upper anti-theft breakpoint and the lower anti-theft breakpoint.

[0020] Preferably, the hollow structure for connecting the inner tube cover and the outer expansion cover includes at least four connecting fins arranged along the Z direction;

[0021] The inner side edge of the connecting wing is connected to the outer peripheral wall of the inner tube cover, and the outer side edge of the connecting wing is connected to the inner side wall of the outer expansion cover;

[0022] At least four of the connecting wings are connected to the side edges of the two first notches, and the bottom ends of the outer sides of the connecting wings are flush with the lower edge of the outward expansion cover.

[0023] Preferably, there are four connecting wings, the inner sides of the four connecting wings are evenly distributed along the circumference of the inner tube cover, the inner sides of the four connecting wings extend outward and bend to form an outer side perpendicular to the Y direction, and the lower parts of the outer sides of the connecting wings on the same side are penetrated by the second notch provided along the Y direction to form a Y-direction air channel;

[0024] The top of the second notch is lower than the top of the first notch, and the side of the second notch is separated from the side of the first notch.

[0025] Preferably, before the cover is opened, a plurality of upper anti-theft breakpoints are formed by protruding downward from the bottom surface of the inner tube cover, and the sizes of the upper anti-theft breakpoints gradually decrease downward to form narrow ends of the upper anti-theft breakpoints, and the narrow ends of the upper anti-theft breakpoints are connected to the surrounding rope;

[0026] Before the cover is opened, several lower anti-theft breakpoints are formed by the outer surface of the surrounding rope protruding downward, and the size of the lower anti-theft breakpoints gradually decreases downward to form the narrow end of the lower anti-theft breakpoint, which is connected to the top surface of the clamping ring.

[0027] Preferably, the surrounding rope surrounds the outer peripheral wall of the suction nozzle tube for nearly a circle, and the first end and the second end of the surrounding rope are close to but not in contact with each other;

[0028] The surrounding rope protrudes upward to form at least one lifting step, the top of the lifting step is higher than the top of the upper anti-theft breakpoint, and the bottom of the pipe cover is recessed or penetrated upward to form an upper air-avoiding gap adapted to the lifting step;

[0029] The encircling rope protrudes downward to form at least one lower lifting step, the bottom end of the lower lifting step is lower than the bottom end of the lower anti-theft breakpoint, and the top of the clamping ring is recessed or penetrated downward to form a lower avoidance gap adapted to the lower lifting step;

[0030] When the cover is not opened, the upper lifting step is sunken into the upper avoidance gap, and the lower lifting step is sunken into the lower avoidance gap;

[0031] When the cover is opened, the nozzle cover rotates, and the side wall of the upper air-avoiding gap collides with the upper lifting step block and slides relatively. The upper air-avoiding gap moves away from the upper lifting step block, and the bottom surface of the inner tube cover slides relatively with the top surface of the upper lifting step block. The bottom of the inner tube cover is lifted by the upper lifting step block, and the upper anti-theft breaking point is pulled circumferentially and vertically and breaks. The lower lifting step block collides with the side wall of the lower air-avoiding gap and slides relatively. The lower lifting step block moves away from the lower air-avoiding gap, and the bottom surface of the lower lifting step block slides relatively with the top surface of the clamping tube ring. The surrounding rope is lifted by the lower lifting step block, and the lower anti-theft breaking point is pulled circumferentially and vertically and breaks.

[0032] Preferably, there is one upper lifting step block and one lower lifting step block respectively, and the upper lifting step block and the lower lifting step block are arranged in the middle of the surrounding rope.

[0033] Preferably, the side wall of the upward lifting step that collides with the upper gap when the cover is opened is set as a corresponding inclined surface;

[0034] The side wall that collides with the lower lifting step when the lower gap is opened is set as a corresponding inclined surface.

[0035] Preferably, the side wall of the upward lifting step that collides with the upper gap when the cover is closed is set as a vertical surface;

[0036] The side wall that collides with the lower lifting step when the lower avoidance gap is closed is set as a vertical surface.

[0037] Beneficial effects of the utility model:

[0038] First, the present invention provides the surrounding rope so that the nozzle cover remains connected to the nozzle tube after opening, avoiding the nozzle cover and the soft packaging bag from being discarded separately, facilitating recycling and complying with EU environmental regulations. Compared with previous designs, the surrounding rope of the present invention is relatively simple in shape and easy to produce. It also has a certain length, which can prevent the face or lips of the consumer from being scratched when drinking. At the same time, the nozzle cover that remains connected to the nozzle tube after opening also helps prevent children from accidentally swallowing the food, which is the first layer of safety design of the present invention.

[0039] Secondly, even if the nozzle cover is connected with a cord, the cord may still break due to accidents (for example, being bitten by a pet while playing, being torn off by force during repeated playing by a child, etc.), thereby causing the nozzle cover to separate from the nozzle tube. Therefore, the present invention increases the volume of the present invention by designing the external expansion cover. The size of the external expansion cover is much larger than the respiratory tract of an average child. Even if the cord breaks due to accidents and a child accidentally swallows the nozzle cover, the child will not be able to swallow it into the respiratory tract due to the excessive size of the nozzle cover, thus avoiding the risk of suffocation. This is the second level of safety design of the present invention.

[0040] Finally, considering that subjects with wider respiratory tracts, such as older children, teenagers, or pets, may accidentally swallow the mouthpiece cover, the present invention is further provided with a Z-direction airway for airflow. In extreme cases, even if the mouthpiece cover is accidentally swallowed, breathing can be maintained until the subject seeks medical attention, thus avoiding the risk of suffocation. This is designed for subjects who can swallow the present invention and constitutes the third level of safety design of the present invention.

[0041] In summary, the three-layer safety structure design makes the utility model not only conducive to recycling and easy to produce, but also highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is one of the structural diagrams of the present utility model;

[0043] Figure 2 This is the second structural diagram of the present utility model;

[0044] Figure 3 This is one of the schematic diagrams of opening the cover of the present utility model;

[0045] Figure 4 This is the second schematic diagram of opening the cover of the present utility model;

[0046] Figure 5 This is a schematic structural diagram of the nozzle cover of the present invention;

[0047] Figure 6 This is a schematic diagram of the airway structure of the nozzle cover of the present invention;

[0048] Figure 7 It is a top view of the utility model;

[0049] Figure 8 for Figure 7 One of the AA-direction cross-sectional views (omitting the nozzle tube);

[0050] Figure 9 for Figure 7 The second sectional view along the AA direction.

[0051] Marking Description:

[0052] 1. Inner tube cover; 101. Upper gap;

[0053] 2. Outward expansion cover; 201. First notch; 202. Second notch;

[0054] 3. Encircling rope; 301. First end; 302. Second end; 303. Lifting step up; 304. Lifting step down;

[0055] 4. Pipe clamp ring; 401. Lower gap;

[0056] 5. Suction nozzle;

[0057] 6. Connecting fins;

[0058] 7. Install anti-theft breakpoints;

[0059] 8. Set anti-theft breakpoints. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0062] like Figures 1 to 9 As shown, a safe suction nozzle assembly that is easy to recycle includes a suction nozzle cover and a suction nozzle tube 5. The suction nozzle cover includes an inner tube cover 1 and an outer expansion cover 2. The outer surface of the outer expansion cover 2 is a diamond finish.

[0063] The inner tube cover 1 is detachably screwed onto one end of the nozzle tube 5 and seals the nozzle, while the other end of the nozzle tube 5 communicates with the interior of the soft packaging bag. Specifically, the inner side wall of the inner tube cover 1 and the outer side wall of the nozzle tube 5 are provided with matching threads.

[0064] The outer expansion cover 2 is open at the top and bottom and its inner diameter is larger than the outer diameter of the inner tube cover 1. The outer expansion cover 2 surrounds the inner tube cover 1 and is coaxially arranged. A hollow structure is provided between the outer expansion cover 2 and the inner tube cover 1 to form a Z-direction airway between the outer expansion cover 2 and the inner tube cover 1.

[0065] This embodiment further includes a bendable surrounding rope 3 and a clamping ring 4.

[0066] The tube clamping ring 4 is provided below the inner tube cover 1 , and the tube clamping ring 4 is rotatably engaged with the nozzle tube 5 .

[0067] The wrapping rope 3 is disposed between the inner tube cover 1 and the tube clamping ring 4. The wrapping rope 3 surrounds at least half the circumference of the outer wall of the nozzle tube 5. In this embodiment, the wrapping rope 3 surrounds the nozzle tube 5 for nearly a full circle. The first end 301 of the wrapping rope 3 extends upward to connect to the tube cover, while the second end 302 of the wrapping rope 3 extends downward to connect to the tube clamping ring 4. The direction in which the first end 301 of the wrapping rope 3 extends toward the second end 302 along its structure is the same as the direction in which the inner tube cover 1 is unscrewed, thereby supporting the unscrewing action.

[0068] When opening the cover, the outer expansion cover 2 is pinched and force is applied, and then the inner tube cover 1 is separated from the suction nozzle tube 5, and the clamping ring 4 remains rotationally connected to the suction nozzle tube 5, and the inner tube cover 1 is connected to the clamping ring 4 through the surrounding rope 3, and then the suction nozzle cover is connected to the suction nozzle tube 5.

[0069] First, the surrounding rope 3 of this embodiment ensures that the nozzle cover remains connected to the nozzle tube 5 after opening, thereby avoiding the nozzle cover and the soft packaging bag from being discarded separately, facilitating recycling and complying with EU environmental regulations. Compared with previous designs, the surrounding rope 3 of this embodiment is relatively simple in shape and easy to produce. It also has a certain length to prevent scratches on the face or lips of the consumer when drinking. At the same time, the nozzle cover that remains connected to the nozzle tube 5 after opening also helps prevent children from accidentally ingesting the liquid, which is the first layer of safety design of this embodiment.

[0070] Secondly, even if the nozzle cover is connected with a surrounding rope 3, there may still be an accidental situation that causes the surrounding rope 3 to break (for example, being bitten by a pet while playing, being forcibly torn off during repeated playing by a child, etc.), thereby causing the nozzle cover to separate from the nozzle tube 5. Therefore, this embodiment increases the volume of this embodiment by designing the external expansion cover 2. The size standard of the external expansion cover 2 is much larger than the respiratory tract of an average young child. Even if the surrounding rope 3 breaks due to an accident and the nozzle cover is accidentally swallowed by a child, the child will not be able to swallow it into the respiratory tract due to the excessive volume of the nozzle cover, thereby avoiding the risk of suffocation. This is the second level of safety design of this embodiment.

[0071] Finally, considering that subjects with wider respiratory tracts, such as older children, teenagers, or pets, may accidentally swallow the nozzle cover, this embodiment is further provided with a Z-direction airway for airflow. In extreme cases, even if the nozzle cover is accidentally swallowed, breathing can be maintained until the subject seeks medical attention, thus avoiding the risk of suffocation. This is designed for subjects who can swallow this embodiment and constitutes the third level of safety design of this embodiment.

[0072] In summary, the three-layer safety structure design makes this embodiment not only easy to recycle and easy to produce, but also highly safe.

[0073] In this embodiment, the first end 301 of the surrounding rope 3 is connected to the bottom surface of the inner tube cover 1, and a plurality of upper anti-theft break points 7 are provided between the bottom surface of the inner tube cover 1 and the surrounding rope 3;

[0074] The second end 302 of the surrounding rope 3 is connected to the top surface of the clamping ring 4. A plurality of lower anti-theft breakpoints 8 are provided between the top surface of the clamping ring 4 and the surrounding rope 3.

[0075] When the nozzle cover is opened by force, the upper anti-theft breaking point 7 and the lower anti-theft breaking point 8 are broken by the force during the opening operation.

[0076] The functions of the upper and lower anti-theft breakpoints are: first, to allow consumers to intuitively judge whether the product has been opened; second, to fix the position of the surrounding rope 3.

[0077] In this embodiment, first notches 201 are respectively provided on two opposite sides of the lower part of the outward expansion cover 2. The two first notches 201 penetrate the outward expansion cover 2 in the X direction and are parallel to each other, forming an X-direction airway, which is different from the Z-direction airway, further improving the safety of this embodiment.

[0078] Specifically, the top ends of the two first notches 201 are higher than the upper anti-theft breakpoint 7, and the two first notches 201 penetrate the outer expansion cover 2 outward. The first notches 201 expose the upper anti-theft breakpoint 7 and the lower anti-theft breakpoint 8, so that consumers can see the upper and lower anti-theft breakpoints more intuitively and easily when purchasing.

[0079] In actual production, the hollow structure for connecting the inner tube cover 1 and the outer expansion cover 2 includes at least four connecting fins 6 arranged along the Z direction to ensure structural strength and connection strength.

[0080] The inner side of the connecting wing 6 is connected to the outer peripheral wall of the inner tube cover 1 , and the outer side of the connecting wing 6 is connected to the inner side wall of the outer expansion cover 2 .

[0081] Due to the design of the two first notches 201 mentioned above, the external expansion cover 2 has two downwardly convex thin-walled structures, which are easy to scratch the skin and have insufficient structural strength. Therefore, this embodiment is provided with four connecting wings 6 connected to the side edges of the two first notches 201 (that is, connected to the edges of the thin-walled structure), and the bottom ends of the outer edges of the connecting wings 6 are flush with the lower edge of the external expansion cover 2. The connection design enables this embodiment to avoid forming a thin-walled structure with insufficient strength.

[0082] Specifically in this embodiment, there are four connecting wings 6, and the inner sides of the four connecting wings 6 are evenly distributed along the circumference of the inner tube cover 1. The inner sides of the four connecting wings 6 extend outward and bend to form an outer side perpendicular to the Y direction. The lower outer sides of the connecting wings 6 on the same side are penetrated by the second notch 202 set along the Y direction to form a Y-direction airway, which forms an airway with a different direction from the Z-direction airway and the X-direction airway, further improving the safety of this embodiment.

[0083] The top of the second notch 202 is lower than the top of the first notch 201 , and the side of the second notch 202 is separated from the side of the first notch 201 .

[0084] In this embodiment, before the cover is opened, a plurality of upper anti-theft breakpoints 7 are formed by protruding downward from the bottom surface of the inner tube cover 1. The size of the upper anti-theft breakpoints 7 gradually decreases downward to form a narrow end of the upper anti-theft breakpoint 7. The narrow end of the upper anti-theft breakpoint 7 is connected to the surrounding rope 3.

[0085] Before the cover is opened, multiple lower anti-theft breakpoints 8 are formed by the outer surface of the surrounding rope 3 protruding downward, and the size of the lower anti-theft breakpoints 8 gradually decreases downward to form the narrow end of the lower anti-theft breakpoint 8, and the narrow end of the lower anti-theft breakpoint 8 is connected to the top surface of the clamping tube ring 4.

[0086] The shape design of the upper and lower anti-theft breakpoints can make the upper and lower anti-theft breakpoints break from the narrow end, so that all the upper and lower anti-theft breakpoints are away from the suction nozzle tube 5 along with the surrounding rope 3 and the suction nozzle cover after the cover is opened, avoiding the presence of broken and protruding upper and lower anti-theft breakpoints on the surface of the suction nozzle tube 5 or the structure near the suction nozzle tube 5, thereby avoiding the upper and lower anti-theft breakpoints from scratching the lips and face of the eater.

[0087] In this embodiment, the surrounding rope 3 surrounds the outer peripheral wall of the suction nozzle tube 5 for nearly one circle, and the first end 301 and the second end 302 of the surrounding rope 3 are close to each other but not in contact.

[0088] The surrounding rope 3 protrudes upward to form at least one lifting step 303, the top of which is higher than the top of the upper anti-theft breakpoint 7, and the bottom of the pipe cover is recessed or penetrated upward to form an upper air-avoiding gap 101 adapted to the lifting step 303;

[0089] The encircling rope 3 protrudes downward to form at least one lower lifting step 304, the bottom end of the lower lifting step 304 is lower than the bottom end of the lower anti-theft breakpoint 8, and the top of the clamping ring 4 is recessed or penetrated downward to form a lower avoidance gap 401 adapted to the lower lifting step 304;

[0090] When the cover is not opened, the upper lifting step 303 is sunken into the upper avoidance gap 101, and the lower lifting step 304 is sunken into the lower avoidance gap 401;

[0091] When the cover is opened, the nozzle cover rotates, and the side wall of the upper air-avoiding gap 101 collides with the upper lifting step 303 and slides relative to each other. The upper air-avoiding gap 101 moves away from the upper lifting step 303, and the bottom surface of the inner tube cover 1 slides relative to the top surface of the upper lifting step 303. The bottom of the inner tube cover 1 is lifted by the upper lifting step 303, and the upper anti-theft breakpoint 7 is pulled circumferentially and vertically and breaks. The lower lifting step 304 collides with the side wall of the lower air-avoiding gap 401 and slides relative to each other. The lower lifting step 304 moves away from the lower air-avoiding gap 401, and the bottom surface of the lower lifting step 304 slides relative to the top surface of the clamping ring 4. The surrounding rope 3 is lifted by the lower lifting step 304, and the lower anti-theft breakpoint 8 is pulled circumferentially and vertically and breaks.

[0092] The "lifting" action of the upper and lower lifting steps applies a "sudden" upward force to the upper and lower anti-theft breakpoints respectively, thereby assisting the unscrewing action to break the upper and lower anti-theft breakpoints faster and more easily.

[0093] In actual production, the number of the upper and lower lifting blocks is designed to be proportional to the length of the surrounding rope 3. In this embodiment, there is one upper lifting block 303 and one lower lifting block 304, respectively. The upper lifting block 303 and the lower lifting block 304 are arranged in the middle of the surrounding rope 3 to maximize the auxiliary breaking point function.

[0094] In this embodiment, the side wall that the upper lifting step 303 collides with when the upper air-avoiding gap 101 is opened is set as a corresponding inclined surface, and the side wall that the lower lifting step 304 collides with when the lower air-avoiding gap 401 is opened is set as a corresponding inclined surface, so that the upper and lower lifting steps can be separated from the upper and lower air-avoiding gaps more effortlessly and smoothly.

[0095] In this embodiment, the side wall that the upper lifting step 303 collides with the upper air-avoiding gap 101 when the cover is closed is set as a vertical surface, and the side wall that the lower lifting step 304 collides with the lower air-avoiding gap 401 when the cover is closed is set as a vertical surface. The functions of this design are: first, to prevent the eater from turning the cover in that direction to open it, thereby prompting the eater to the correct direction to open the cover; second, when the cover is turned again to close it, the vertical surface design can provide a sudden click-in-place feel, reminding the eater that the cover has been tightened to avoid over-turning.

[0096] Based on the disclosure and teachings of the above specification, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A safe suction nozzle assembly that is easy to recycle, comprising a suction nozzle tube and a suction nozzle cover, characterized in that: It also includes a clamping tube ring and a bendable surrounding rope, and the nozzle cover includes an inner tube cover and an outer expansion cover; The inner tube cover is detachably screwed onto one end of the nozzle tube and seals the nozzle, while the other end of the nozzle tube communicates with the interior of the flexible packaging bag. The outer cover is open at the top and bottom and has an inner diameter larger than the outer diameter of the inner tube cover. The outer cover surrounds the inner tube cover and is coaxially arranged. A hollow structure is provided between the outer cover and the inner tube cover to connect them, forming a Z-direction airway between the outer cover and the inner tube cover. The clamping ring is provided below the inner tube cover and is rotatably engaged with the nozzle tube; The surrounding rope is provided between the inner tube cover and the tube clamping ring. The surrounding rope surrounds at least half of the circumference of the outer peripheral wall of the nozzle tube. The first end of the surrounding rope extends upward to be connected to the tube cover, and the second end of the surrounding rope extends downward to be connected to the tube clamping ring. The direction in which the first end of the surrounding rope extends along its own structure to the second end is the same as the direction in which the inner tube cover is unscrewed. When opening the cover, the outer cover is pinched and force is applied, and then the inner tube cover is separated from the nozzle tube, and the clamping ring is still connected to the nozzle tube in rotation. The inner tube cover is connected to the clamping ring through the surrounding rope, and then the nozzle cover is connected to the nozzle tube.

2. The recycling-friendly safety nozzle assembly according to claim 1, characterized in that: The first end of the surrounding rope is connected to the bottom surface of the inner tube cover, and a plurality of upper anti-theft breakpoint connections are provided between the bottom surface of the inner tube cover and the surrounding rope; The second end of the surrounding rope is connected to the top surface of the clamping tube ring, and a plurality of lower anti-theft breakpoint connections are provided between the top surface of the clamping tube ring and the surrounding rope; When the nozzle cover is opened by force, the upper anti-theft breaking point and the lower anti-theft breaking point are broken by the force during the opening operation.

3. The recycling-friendly safety nozzle assembly according to claim 2, characterized in that: A first notch is respectively formed on two opposite sides of the lower portion of the outer expansion cover, and the two first notches penetrate the outer expansion cover in the X direction and are parallel to each other, forming an X-direction airway; The top ends of the two first notches are higher than the upper anti-theft breakpoint, and the two first notches penetrate the outer expansion cover outward, and the first notches expose the upper anti-theft breakpoint and the lower anti-theft breakpoint.

4. The recycling-friendly safety nozzle assembly according to claim 3, characterized in that: The hollow structure for connecting the inner tube cover and the outer expansion cover includes at least four connecting fins arranged along the Z direction; The inner side edge of the connecting wing is connected to the outer peripheral wall of the inner tube cover, and the outer side edge of the connecting wing is connected to the inner side wall of the outer expansion cover; At least four of the connecting wings are connected to the side edges of the two first notches, and the bottom ends of the outer sides of the connecting wings are flush with the lower edge of the outward expansion cover.

5. The recycling-friendly safety nozzle assembly according to claim 4, characterized in that: There are four connecting wings, the inner sides of which are evenly distributed along the circumference of the inner tube cover. The inner sides of the four connecting wings extend outward and bend to form an outer side perpendicular to the Y direction. The lower parts of the outer sides of the connecting wings on the same side are penetrated by a second notch provided along the Y direction to form a Y-direction air channel. The top of the second notch is lower than the top of the first notch, and the side of the second notch is separated from the side of the first notch.

6. The recycling-friendly safety nozzle assembly according to claim 2, characterized in that: Before the cover is opened, a plurality of upper anti-theft breakpoints are formed by protruding downward from the bottom surface of the inner tube cover, and the sizes of the upper anti-theft breakpoints gradually decrease downward to form narrow ends of the upper anti-theft breakpoints, which are connected to the surrounding rope; Before the cover is opened, several lower anti-theft breakpoints are formed by the outer surface of the surrounding rope protruding downward, and the size of the lower anti-theft breakpoints gradually decreases downward to form the narrow end of the lower anti-theft breakpoint, which is connected to the top surface of the clamping ring.

7. The recycling-friendly safety nozzle assembly according to claim 6, characterized in that: The surrounding rope surrounds the outer peripheral wall of the suction nozzle tube for nearly a circle, and the first end and the second end of the surrounding rope are close to each other but not in contact; The surrounding rope protrudes upward to form at least one lifting step, the top of the lifting step is higher than the top of the upper anti-theft breakpoint, and the bottom of the pipe cover is recessed or penetrated upward to form an upper air-avoiding gap adapted to the lifting step; The encircling rope protrudes downward to form at least one lower lifting step, the bottom end of the lower lifting step is lower than the bottom end of the lower anti-theft breakpoint, and the top of the clamping ring is recessed or penetrated downward to form a lower avoidance gap adapted to the lower lifting step; When the cover is not opened, the upper lifting step is sunken into the upper avoidance gap, and the lower lifting step is sunken into the lower avoidance gap; When the cover is opened, the nozzle cover rotates, and the side wall of the upper air-avoiding gap collides with the upper lifting step block and slides relatively. The upper air-avoiding gap moves away from the upper lifting step block, and the bottom surface of the inner tube cover slides relatively with the top surface of the upper lifting step block. The bottom of the inner tube cover is lifted by the upper lifting step block, and the upper anti-theft breaking point is pulled circumferentially and vertically and breaks. The lower lifting step block collides with the side wall of the lower air-avoiding gap and slides relatively. The lower lifting step block moves away from the lower air-avoiding gap, and the bottom surface of the lower lifting step block slides relatively with the top surface of the clamping tube ring. The surrounding rope is lifted by the lower lifting step block, and the lower anti-theft breaking point is pulled circumferentially and vertically and breaks.

8. The recycling-friendly safety nozzle assembly according to claim 7, characterized in that: The upper lifting step block and the lower lifting step block are respectively provided with one, and the upper lifting step block and the lower lifting step block are arranged in the middle of the surrounding rope.

9. The recycling-friendly safety nozzle assembly according to claim 8, characterized in that: The side wall of the upward lifting step that collides with the upper gap when the cover is opened is configured as a corresponding inclined surface; The side wall that collides with the lower lifting step when the lower gap is opened is set as a corresponding inclined surface.

10. The recycling-friendly safety nozzle assembly according to claim 8 or 9, characterized in that: The side wall of the upward lifting step that collides with the upper gap when the cover is closed is set as a vertical surface; The side wall that collides with the lower lifting step when the lower avoidance gap is closed is set as a vertical surface.

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