Suction nozzle and flexible packaging container

Abstract

The utility model discloses a suction nozzle and a flexible packaging container, the suction nozzle comprises a main body and a mouth part, the main body is provided with a through hole, the side wall of the through hole is provided with a limiting part, the mouth part is provided with a suction hole, and the outer wall of the mouth part is provided with a first convex rib and a second convex rib which are used for being connected with the limiting part. The suction nozzle is designed to be of a two-body structure, and automatic filling under the sterile environment is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of packaging, and more particularly, to a nozzle and a flexible packaging container. Background Art

[0002] The flexible packaging nozzle bag is a new type of packaging form developed on the basis of the stand-up bag, and is widely used in the packaging of foods such as beverages and jellies. Its structure is mainly divided into two parts: a nozzle and a bag body. The nozzle part can be regarded as a general bag mouth with a straw installed, and is closely combined with the bag body to form a packaging that supports sucking. The nozzle is connected with an anti-theft cap. When filling, the anti-theft cap is removed, and the liquid is filled into the bag body from the nozzle. After filling, the entire container is heated and sterilized.

[0003] This structure and process are complex in the filling and sterilization processes. The entire filling and sealing process cannot be completely carried out in a sterile environment, and the heating and sterilization process after filling is not suitable for all packaging materials. Summary of the Utility Model

[0004] In view of this, this application provides a nozzle and a flexible packaging container, which are convenient for filling materials in a sterile environment.

[0005] In a first aspect, this application provides a nozzle, including a main body and a mouth part. The main body is provided with a through hole, a limiting part is arranged on the side wall of the through hole, the mouth part is provided with a suction hole, and a first rib and a second rib for connecting with the limiting part are arranged on the outer wall of the mouth part.

[0006] For a traditional bagged container with a nozzle, the nozzle is separately connected to the anti-theft cap and the bag body. When filling, the anti-theft cap is removed and filling is carried out from the nozzle in a sterile environment. After filling, the anti-theft cap is assembled outside the sterile filling environment, and then high-temperature sterilization is carried out.

[0007] By adopting the technical solution of this application, the main body is used to connect with the bag body, and the mouth part is connected with the anti-theft cap. The nozzle structure is designed as a two-piece structure of the main body and the mouth part, and the two are respectively connected to the limiting part through the first rib and the second rib to achieve two states. When the first rib is connected to the limiting part, the main body and the mouth part are connected as a whole and can be sterilized together and then enter the sterile environment to wait for filling. In the sterile environment, through the operation of a manipulator, the main body and the mouth part are separated, and the material enters the bag body from the through hole of the main body for filling. After filling, the mouth part is inserted into the through hole by the manipulator until the second rib is connected to the limiting part, realizing the locking of the main body and the mouth part. The entire filling and capping are carried out in a sterile environment. After capping, there is no need to carry out high-temperature sterilization on the entire container. The process is simple, safer and more reliable, and can be applied to more material packagings.

[0008] In some embodiments, the mouth part includes a first flange, the second rib is located between the first rib and the first flange, and the through hole includes a tapered surface.

[0009] In some embodiments, a first guiding portion is provided on a side of the first rib away from the second rib.

[0010] By adopting the above technical solution, the first rib and the limiting portion are in a pre-connected state, and the second rib and the limiting portion are in a tightly connected state. The guiding portion of the first rib is beneficial for the first rib to enter the through hole to be connected with the limiting portion. The diameter of the conical surface decreases in a direction away from the limiting portion. In a state where the second rib is connected to the limiting portion, the conical surface is in circumferential contact with the first rib, improving the sealing performance.

[0011] In some embodiments, a second guiding portion is provided on a side of the first rib close to the second rib.

[0012] By adopting the above technical solution, the second guiding portion is beneficial for the first rib to be separated from the limiting portion, so as to separate the mouth part from the main body for filling.

[0013] In some embodiments, a guiding surface is provided at an end of the mouth part, and the first rib is located between the guiding surface and the second rib.

[0014] By adopting the above technical solution, the guiding surface is beneficial for guiding the mouth part to enter the through hole.

[0015] In some embodiments, an arc surface facilitating the entry of the first rib and the second rib into the through hole is provided at an edge of the through hole of the main body.

[0016] By adopting the above technical solution, the arc surface is beneficial for the first rib and the second rib to enter the through hole, so as to realize two connection states between the mouth part and the main body.

[0017] In some embodiments, the main body is provided with a second flange, and the arc surface connects the end face of the second flange and the inner surface of the limiting portion.

[0018] In some embodiments, when the second rib is in a limiting connection state with the limiting portion, the first flange and the second flange are in contact with each other.

[0019] By adopting the above technical solution, the second flange can improve the stability of the connection state between the second rib and the limiting portion.

[0020] In some embodiments, when the first rib is in a limiting connection state with the limiting portion, the second flange and the arc surface are in contact with each other.

[0021] By adopting the above technical solution, the stability of the connection between the first rib and the limiting portion is improved, and effective sealing can also be achieved.

[0022] In a second aspect, the present application provides a flexible packaging container, which includes a bag body and the nozzle of the first aspect, and the bag body and the nozzle are hermetically connected.

[0023] By adopting the above technical solution, it is possible to achieve that the entire filling and capping are carried out in a sterile environment. After capping, there is no need to perform high-temperature sterilization on the entire container. The process is simple, safer and more reliable, and it can be applied to more material packaging.

[0024] To sum up, the present application has at least one of the following beneficial technical effects:

[0025] 1. By designing the nozzle as a two-piece structure, it is possible to achieve filling and encapsulation in a sterile environment, improving safety and reducing the possible adverse effects of high-temperature sterilization on the material in the later stage.

[0026] 2. The nozzle of the present application has a simple structure and reliable connection, and can achieve different functions through two connection states.

[0027] 3. The flexible packaging container of the present application has a simple process, is safer and more reliable, and can be applied to more material packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is an exploded structural schematic diagram of the nozzle of the present application;

[0029] Figure 2 is a three-dimensional structural schematic diagram of the nozzle of the present application before filling;

[0030] Figure 3 is a sectional structural schematic diagram of the nozzle of the present application before filling;

[0031] Figure 4 is a three-dimensional structural schematic diagram of the connection state between the first rib and the limiting part of the nozzle of the present application;

[0032] Figure 5 is a sectional structural schematic diagram of the connection state between the first rib and the limiting part of the nozzle of the present application;

[0033] Figure 6 is a three-dimensional structural schematic diagram of the connection state between the second rib and the limiting part of the nozzle of the present application;

[0034] Figure 7 is a sectional structural schematic diagram of the connection state between the second rib and the limiting part of the nozzle of the present application.

[0035] Description of the reference numerals:

[0036] 1. Body; 11. Limiting part; 12. Through hole; 121. Tapered surface; 13. Second flange; 131. Arc surface; 14. Third flange; 15. Welding flange; 151. Sealing groove; 2. Mouth part; 21. Suction hole; 22. First rib; 221. First guiding part; 222. Second guiding part; 23. Second rib; 231. Third guiding part; 24. Cylinder; 241. Threaded rib; 242. Anti-theft buckle; 243. Guiding surface; 25. First flange; 3. Anti-theft cover. Detailed implementation mode

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings. The components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0040] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application 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 this application.

[0041] The following will describe in detail the embodiments of the present utility model with reference to the drawings. Without conflict, the features in the following embodiments can be combined with each other.

[0042] Embodiment 1

[0043] Please refer to Figures 1-7 , this embodiment discloses a suction nozzle, including an anti-theft cover 3, a mouth part 2 and a body 1.

[0044] Please refer to Figure 1 The mouth 2 includes a column 24 and a first flange 25 integrally connected to the column 24. An anti-theft buckle 242 and a threaded rib 241 are sequentially arranged on one side of the first flange 25. The anti-theft buckle 242 is connected to the column 24 and the first flange 25 and is integrally formed. The threaded rib 241 is arranged on the side wall of the column 24 for threaded connection with the anti-theft cover 3. The anti-theft buckle 242 is unidirectionally rotatably connected to the anti-theft cover 3. The anti-theft cover 3 can be connected to the anti-theft buckle 242 in the direction of thread tightening. When the anti-theft cover 3 rotates in the opposite direction, the anti-theft structure of the anti-theft cover 3 and the anti-theft buckle 242 is destroyed and cannot be restored.

[0045] The other side of the first flange 25 is provided with a second rib 23 and a first rib 22 in sequence, the second rib 23 and the first rib 22 are arranged at intervals, the second rib 23 and the first flange 25 are arranged at intervals, and the second rib 23 is located between the first rib 22 and the first flange 25. The main body 1 includes a second flange 13 and a third flange 14 arranged at intervals, the third flange 14 is connected to a welding flange 15 on the side away from the second flange 13, and a plurality of sealing grooves 151 are provided on the side wall of the welding flange 15, the welding flange 15 is used for sealing connection with the flexible packaging bag, and the sealing grooves 151 are used for increasing the sealing performance of the welding flange 15 and the flexible packaging bag. A through hole 12 is provided through the center of the main body 1, and a limiting portion 11 is provided at the connection between the through hole 12 and the end surface of the second flange 13, the limiting portion 11 is an annular rib with an inner hole diameter smaller than the diameter of the through hole 12, and the limiting portion 11 is used for connecting with the first rib 22 and the second rib 23 to realize two functional states.

[0046] See also Figure 2 and Figure 3 , which is the connection state before entering the sterile environment for filling. The first rib 22 is provided with a first guide portion 221 on the side away from the second rib 23, and the first rib 22 is provided with a second guide portion 222 on the side close to the second rib 23. In this embodiment, the first guide portion 221 and the second guide portion 222 are rounded, and can also be an oblique structure. The first guide portion 221 can reduce the resistance of the first rib 22 passing through the limiting portion 11 during the insertion of the column 24 into the through hole 12. After the first guide portion 221 passes through the limiting portion 11, the first rib 22 abuts against the inner wall of the through hole 12 and the limiting portion 11. The maximum diameter of the first rib 22 is greater than the minimum diameter of the inner hole of the limiting portion 11. Therefore, the first rib 22 is in a relatively stable state after passing through the limiting portion 11, unless a certain pulling force is applied to the mouth 2 and the anti-theft cover 3 to separate the mouth 2 from the main body 1. When the first rib 22 is connected to the limiting portion 11, the second guide portion 222 is convenient for reducing the resistance to the separation of the first rib 22 and the limiting portion 11, so that when the mouth 2 needs to be separated from the main body 1, not too much force is required, thereby reducing the probability of damage to the mouth 2, the anti-theft cover 3 or the main body 1.

[0047] A guiding surface 243 is provided at the end of the cylinder 24 away from the anti-theft cap 3. The outer diameter of the guiding surface 243 gradually decreases from the first rib 22 towards the end. The first rib 22 is located between the guiding surface 243 and the second rib 23. An arc surface 131 is provided at the connection between the end face of the second flange 13 and the limiting portion 11. The diameter of the arc surface 131 gradually decreases from the end face of the second flange 13 along the axis of the through hole 12 towards the third flange 14. The guiding surface 243 and the arc surface 131 facilitate the guiding effect during the insertion of the cylinder 24 into the through hole 12, and facilitate the quick and convenient connection between the mouth part 2 and the main body 1.

[0048] A third guiding portion 231 is provided on the side of the second rib 23 close to the first rib 22. The third guiding portion 231 extends from the second rib 23 along the axial direction of the cylinder 24 towards the first rib 22 and its diameter gradually decreases. When the first rib 22 is connected to the limiting portion 11, the third guiding portion 231 abuts against the arc surface 131, which can not only play a role in limiting to prevent the mouth part 2 from being inserted too deep into the main body 1, which is not conducive to extraction, but also achieve the stability of the connection state between the first rib 22 and the limiting portion 11.

[0049] Please refer to Figure 3 , a suction hole 21 is provided at the center of the mouth part 2. The position of the through hole 12 close to the second flange 13 is a conical surface 121. The conical surface 121 extends from the second flange 13 along the axis of the through hole 12 towards the third flange 14 and its diameter gradually decreases. A step is formed at the connection between the conical surface 121 and the limiting portion 11 to facilitate the anti-disconnection connection of the first rib 22 or the second rib 23.

[0050] Before filling, the anti-theft cap 3 and the mouth part 2 are connected and fixed, and the mouth part 2 is separated from the cylinder 24.

[0051] Please refer to Figure 4 and Figure 5 , for the connection state before the suction nozzle enters the aseptic filling environment for filling. In this state, the first rib 22 passes through the limiting portion 11 and abuts against the conical surface 121 and the limiting portion 11, and the third guiding portion 231 of the second rib 23 abuts against the arc surface 131 on the second flange 13. Thus, a relatively stable connection state is achieved between the mouth part 2 and the main body 1. When the main body 1 is connected to an empty flexible packaging bag, with the mouth part 2 fixed and the main body 1 suspended, the main body 1 connected to the flexible packaging bag will not be separated from the mouth part 2 under gravity. In this connection state, the suction nozzle with the flexible packaging bag is placed in the aseptic environment, and the mouth part 2 and the main body 1 are separated by a manipulator for sterilization treatment. After sterilization, the filling equipment fills the flexible packaging bag connected to the main body 1 through the through hole 12 with materials.

[0052] Please refer to Figure 6 and Figure 7, it is the encapsulation state of the suction nozzle. After filling is completed in a sterile environment, the manipulator inserts the nozzle 2 into the through hole 12 of the main body 1 until the first flange 25 and the second flange 13 are in contact. In this state, the second rib 23 passes through the limiting part 11 and abuts against the limiting part 11 and the conical surface 121, and the first rib 22 abuts against the conical surface 121. The diameter of the first rib 22 is larger than the diameter at the conical surface 121. Therefore, the first rib 22 is in interference fit with the conical surface 121. Since both the first rib 22 and the second rib 23 are closed rings, both the first rib 22 and the second rib 23 abut against the conical surface 121 to form a double-layer sealing structure, which can improve the sealing performance between the nozzle 2 and the main body 1, reduce the material safety inside the soft packaging bag, and can reduce the risk of material leakage between the nozzle 2 and the main body 1. In this encapsulation state, the through hole 12 and the suction hole 21 are communicated. Since the anti-theft cap 3 and the nozzle 2 are sealed, the material inside the soft packaging bag cannot leak through the suction hole 21. Since the entire filling and encapsulation are carried out in a sterile environment, the encapsulated product does not need to be sterilized additionally and can be directly packaged and sold as a finished product, with a simpler operation process and also reducing the impact on the material from re-sterilization after encapsulation.

[0053] In the encapsulation state, the anti-theft cap 3, the nozzle 2 and the main body 1 are connected as a whole, and the nozzle 2 and the main body 1 cannot be separated under normal circumstances. When the consumer uses it, the anti-theft cap 3 is rotated reversely to separate the anti-theft cap 3 from the nozzle 2, and the material can flow out from the suction hole 21 through the through hole 12 and the suction hole 21.

[0054] Embodiment 2

[0055] This embodiment discloses a packaging container, including the suction nozzle in Embodiment 1 and a soft packaging bag that is integrally and hermetically connected to the suction nozzle.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes, modifications, substitutions and variations, and all these changes, modifications, substitutions and variations fall within the scope of the present invention claimed.

Claims

1. A nozzle, characterized in that: The invention comprises a main body (1) and a mouth portion (2), wherein the main body (1) is provided with a through hole (12), a side wall of the through hole (12) is provided with a limiting portion (11), the mouth portion (2) is provided with a suction hole (21), and an outer wall of the mouth portion (2) is provided with a first convex rib (22) and a second convex rib (23) for connecting with the limiting portion (11).

2. The nozzle according to claim 1, characterized in that: The mouth (2) comprises a first flange (25), the second rib (23) is located between the first rib (22) and the first flange (25), and the through hole (12) comprises a conical surface (121).

3. The nozzle according to claim 2, characterized in that: The first convex rib (22) is provided with a first guide portion (221) on a side away from the second convex rib (23).

4. The nozzle according to claim 2, characterized in that: The first convex rib (22) is provided with a second guide portion (222) on a side close to the second convex rib (23).

5. The nozzle according to claim 2, characterized in that: A guide surface (243) is provided at the end of the mouth (2), and the first convex rib (22) is located between the guide surface (243) and the second convex rib (23).

6. The nozzle according to claim 2, characterized in that: The edge of the through hole (12) of the main body (1) is provided with an arc surface (131) which facilitates the first convex rib (22) and the second convex rib (23) to enter the through hole (12).

7. The nozzle according to claim 6, characterized in that: The main body (1) is provided with a second flange (13), and the arc surface (131) connects the end surface of the second flange (13) and the inner surface of the limiting portion (11).

8. The nozzle according to claim 7, characterized in that: When the second rib (23) is connected to the limiting portion (11) in a limiting state, the first flange (25) and the second flange (13) are in abutment with each other.

9. The nozzle according to claim 7, characterized in that: When the first convex rib (22) is in a position-limiting state connected to the limiting portion (11), the second flange (13) abuts against the arc surface (131).

10. A flexible packaging container, characterized in that: Comprising the suction nozzle as described in any one of claims 1-9.

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