Standing pouch suction nozzle cover easy to unscrew and not prone to breaking ring

Abstract

The utility model discloses a self-standing pouch suction nozzle cover easy to unscrew and not prone to breaking a ring. The self-standing pouch suction nozzle cover comprises a screw cover and a connecting ring. The connecting ring comprises two semicircular connecting sections, two first easy-to-tear strips and a plurality of second easy-to-tear strips, and the upper edges of the two semicircular connecting sections are fixedly connected with the edge of an opening in the lower end of the screw cap through the second easy-to-tear strips; the packaging box is characterized in that the head ends of the two semicircular connecting sections are each provided with an elastic piece inclining inwards, and the middle of the head end of the outer side face of the elastic piece of the first semicircular connecting section is connected with the middle of the tail end of the second semicircular connecting section through the first easy-to-tear strip; the middle of the tail end of the first semicircular connecting section is connected with the middle of the head end of the outer side face of the elastic piece of the second semicircular connecting section through the other first easy-to-tear strip, the head end of the outer side face of each elastic piece is located on the inner side of the tail end of the adjacent semicircular connecting section, and each elastic piece becomes a one-way tooth matched with the suction nozzle. And the orientation of the one-way teeth is consistent with the screwing direction of the internal threads on the inner side wall of the screw cap.

Description

Technical Field

[0001] The utility model relates to a self-standing bag nozzle, in particular to a self-standing bag nozzle cap that is easy to unscrew and not prone to broken rings. Background Art

[0002] At present, for example, the utility model patent with the authorization announcement number CN214876834U discloses a self-standing bag nozzle with better sealing performance (as shown in Figures 5-6 ), which includes a screw cap 1' and a nozzle. The inner side wall of the screw cap is provided with internal threads, and the outer side wall of the nozzle is provided with external threads. The screw cap and the nozzle are connected by threads; the lower opening edge of the screw cap is provided with a connecting ring 11'. At least one one-way tooth 12' is provided on the inner side wall of the connecting ring 11'. The orientation of the one-way tooth 12' is the same as the helix direction of the internal threads on the inner side wall of the screw cap 1'; a limiting ring is provided on the outer side wall of the nozzle. The limiting ring is located below the external threads on the nozzle. At least one blocking block that cooperates with the one-way tooth is provided on the outer circumferential edge of the limiting ring; the above-mentioned connecting ring 11' includes two semi-circular connecting segments 111', two first tear strips 112' and a plurality of second tear strips 113'. The lower part of the head end of the first semi-circular connecting segment 111' is connected to the lower part of the tail end of the second semi-circular connecting segment 111' through a first tear strip 112'. The lower part of the tail end of the first semi-circular connecting segment 111' is connected to the lower part of the head end of the second semi-circular connecting segment 111' through another first tear strip 112'. Two one-way teeth 12' are respectively installed on the inner side surfaces of the corresponding semi-circular connecting segments 111', and the one-way tooth 12' is located on the front side of the corresponding first tear strip 112'; the upper edges of the two semi-circular connecting segments 111' are fixedly connected to the lower opening edge of the screw cap 1' through a plurality of second tear strips 113'.

[0003] Generally, in order to facilitate unscrewing the screw cap, when injecting the screw cap, the size of the first tear strip is designed to be very thin. However, during the process of screwing the screw cap tightly onto the nozzle, the too-thin first tear strip is very easy to break. Moreover, the two semi-circular connecting segments 111' and the two first tear strips 112' are sequentially connected to form the connecting ring 11'. The ends of the two broken first tear strips still contact the ends of the semi-circular connecting segments. It is not easy for the user to notice that the two first tear strips have broken. The broken first tear strip is likely to cause poor sealing between the screw cap and the nozzle, resulting in liquid leakage and affecting the product sealing performance. If the size of the first tear strip is designed to be too thick, a great deal of force is required to break the first tear strip, making it difficult for the user to unscrew the screw cap. Content of the Utility Model

[0004] The problem to be solved by the utility model is to provide a self-standing bag nozzle cap that is easy to unscrew and not prone to broken rings. This self-standing bag nozzle cap is easy to unscrew and not prone to broken rings, and can timely detect the sealing problem between the screw cap and the nozzle, avoiding liquid leakage.

[0005] To solve the above technical problems, the technical solution adopted by the present utility model is as follows:

[0006] A self-standing bag nozzle cover that is easy to unscrew and not prone to broken rings, comprising a screw cap and a connecting ring. An internal thread that matches the outer side wall of the nozzle is provided on the inner side wall of the screw cap; the connecting ring includes two semi-circular connecting segments, two first tear strips, and multiple second tear strips. The upper edges of the two semi-circular connecting segments are fixedly connected to the lower opening edge of the screw cap through multiple second tear strips; it is characterized in that: elastic pieces that incline inwards are respectively provided at the leading ends of the two semi-circular connecting segments. The middle of the leading end of the outer side surface of the elastic piece of the first semi-circular connecting segment is connected to the middle of the trailing end of the second semi-circular connecting segment through one of the first tear strips. The middle of the trailing end of the first semi-circular connecting segment is connected to the middle of the leading end of the outer side surface of the elastic piece of the second semi-circular connecting segment through the other first tear strip. The leading end of the outer side surface of each elastic piece is inside the trailing end of the adjacent semi-circular connecting segment, and each elastic piece forms a one-way tooth that matches the nozzle. The orientation of the one-way tooth is the same as the rotation direction of the internal thread on the inner side wall of the screw cap.

[0007] Generally, a limiting ring is provided on the outer side wall of the above nozzle. The limiting ring is below the external thread on the nozzle, and two first blocking blocks and two second blocking blocks that cooperate with the elastic pieces are provided on the outer circumferential edge of the limiting ring.

[0008] The above elastic pieces incline inwards, and the leading end of the outer side surface of each elastic piece is inside the trailing end of the adjacent semi-circular connecting segment, so that there is a certain gap between the outer side surface of the elastic piece and the trailing end of the adjacent semi-circular connecting segment, making the first tear strip obliquely connected between the outer side surface of the elastic piece and the trailing end of the adjacent semi-circular connecting segment, and the formed connecting ring is no longer a complete circle. This structure makes the position of the first tear strip more obvious, and it is easier for users to notice whether the two first tear strips are broken when unscrewing the screw cap, timely discover the sealing problem between the screw cap and the nozzle, and avoid liquid leakage. Moreover, the manufacturer can design the size of the first tear strip to be relatively thin. During the process of screwing the screw cap tightly, the elastic pieces have a certain elastic deformation, which can disperse the connecting stress, reduce the possibility of the first tear strip breaking, and facilitate the user to unscrew the screw cap.

[0009] When the user forces to unscrew the screw cap, the screw cap rotates in the reverse direction, and the two elastic pieces are buckled by the rear parts of the corresponding first blocking blocks, so that the resistance between the connecting ring and the first blocking blocks quickly hooks and breaks the first tear strip on the connecting ring, destroys the connection of the connecting ring, and then unscrews the screw cap from the nozzle.

[0010] In a preferred embodiment, there is a strip-shaped gap between the head end of the outer side surface of the elastic sheet and the tail end of the adjacent semi-circular connecting section, and the first tear strip is located at the middle position of the strip-shaped gap. By arranging the first tear strip at the middle position of the strip-shaped gap, when the first tear strip breaks, the user can observe it more clearly through the strip-shaped gap, discover and handle it in time, and avoid poor sealing.

[0011] In a preferred embodiment, two arc-shaped positioning blocks and two arc-shaped guiding blocks are provided on the lower end surface of the lower opening of the screw cap, and the arc-shaped positioning blocks and arc-shaped guiding blocks are alternately arranged in sequence along the rotation direction of the internal thread on the inner side wall of the screw cap. After the screw cap is tightened on the nozzle, the front end of each arc-shaped positioning block is snap-fitted with the front part of the corresponding first blocking block, and the lower side surface of each arc-shaped guiding block is respectively in abutting cooperation with the upper side surface of the corresponding second blocking block, so that the lower end surface of the lower opening of the screw cap and the limiting ring of the nozzle are fixedly abutted simultaneously at four points, which can prevent the screw cap from shaking relative to the nozzle, and avoid deformation or even liquid leakage caused by the nozzle of this self-standing bag falling and toppling.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model is easy to unscrew and not easy to break the ring, can timely discover the sealing problem between the screw cap and the nozzle, and avoid liquid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a specific embodiment of the utility model;

[0015] Figure 2 is Figure 1 a schematic structural diagram of the outer side of the screw cap in

[0016] Figure 3 is Figure 1 a schematic structural diagram of the cooperation between the screw cap and the nozzle in

[0017] Figure 4 is Figure 3 a sectional view taken along A-A in

[0018] Figure 5 is a schematic structural diagram of the screw cap in the background art of the utility model;

[0019] Figure 6 is a schematic structural diagram of the inner side of the screw cap in the background art of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The utility model will be specifically described below with reference to the accompanying drawings and specific embodiments.

[0021] As Figures 1-4As shown in the figure, the self-standing bag nozzle cover that is easy to unscrew and not prone to broken rings in this embodiment includes a screw cap 1 and a connecting ring 2. An internal thread that matches the outer sidewall of the nozzle 3 is provided on the inner sidewall of the screw cap 1; the connecting ring 2 includes two semi-circular connecting segments 21, two first tear strips 22, and multiple second tear strips 23. The upper edges of the two semi-circular connecting segments 21 are fixedly connected to the lower opening edge of the screw cap 1 through multiple second tear strips 23; elastic pieces 211 that incline inwards are respectively provided at the leading ends of the two semi-circular connecting segments 21. The middle of the leading end of the outer side of the elastic piece 211 of the first semi-circular connecting segment 21 is connected to the middle of the trailing end of the second semi-circular connecting segment 21 through one of the first tear strips 22. The middle of the trailing end of the first semi-circular connecting segment 21 is connected to the middle of the leading end of the outer side of the elastic piece 211 of the second semi-circular connecting segment 21 through the other first tear strip 22. The leading end of the outer side of each elastic piece 211 is inside the trailing end of the adjacent semi-circular connecting segment 21, and each elastic piece 211 forms a one-way tooth that matches the nozzle 3. The orientation of the one-way tooth is the same as the rotation direction of the internal thread on the inner sidewall of the screw cap 1.

[0022] Generally, a limiting ring 31 is provided on the outer sidewall of the above-mentioned nozzle 3. The limiting ring 31 is below the external thread on the nozzle 3. Two first blocking blocks 32 and two second blocking blocks 33 that match the elastic pieces 211 are provided on the outer circumferential edge of the limiting ring 31.

[0023] The above-mentioned elastic pieces 211 incline inwards, and the leading end of the outer side of each elastic piece 211 is inside the trailing end of the adjacent semi-circular connecting segment 21, so that there is a certain gap between the outer side of the elastic piece 211 and the trailing end of the adjacent semi-circular connecting segment 21, making the first tear strip 22 obliquely connected between the outer side of the elastic piece 211 and the trailing end of the adjacent semi-circular connecting segment 21, and the formed connecting ring 2 is no longer a complete circle. This structure makes the position of the first tear strip 22 more obvious, and it is easier for users to notice whether the two first tear strips 22 are broken when unscrewing the screw cap 1, timely discover the sealing problem between the screw cap 1 and the nozzle 3, and avoid liquid leakage. Moreover, the manufacturer can design the size of the first tear strip 22 to be relatively thin. During the process of screwing the screw cap 1 tightly, the elastic piece 211 has a certain elastic deformation, which can disperse the connection stress, not only reducing the possibility of the first tear strip 22 breaking, but also facilitating the user to unscrew the screw cap 1.

[0024] When the user tries to unscrew the screw cap 1 with force, the screw cap 1 rotates in the reverse direction, and the two elastic pieces 211 are buckled by the rear parts of the corresponding first blocking blocks 32, so that the resistance between the connecting ring 2 and the first blocking blocks 32 quickly hooks and breaks the first tear strip 22 on the connecting ring 2, destroying the connection of the connecting ring 2, and then unscrewing the screw cap 1 from the nozzle 3.

[0025] A strip-shaped gap 212 is defined between the leading end of the outer side of the elastic sheet 211 and the trailing end of the adjacent semicircular connecting segment 21. The first tear strip 22 is located in the middle of the strip-shaped gap 212. Positioning the first tear strip 22 in the middle of the strip-shaped gap 212 allows the user to more clearly observe the breakage of the first tear strip 22 through the strip-shaped gap 212, allowing for prompt detection and action to prevent leaks.

[0026] Two arc-shaped positioning blocks 11 and two arc-shaped guide blocks 12 are provided on the lower end surface of the lower opening of the screw cap 1. The arc-shaped positioning blocks 11 and the arc-shaped guide blocks 12 are arranged alternately along the direction of rotation of the internal threads on the inner side wall of the screw cap 1. When the screw cap 1 is tightened onto the suction nozzle 3, the front end of each arc-shaped positioning block 11 snaps into engagement with the front end of the corresponding first blocking block 32, and the lower side of each arc-shaped guide block 12 abuts and engages with the upper side of the corresponding second blocking block 33. This ensures that the lower end surface of the lower opening of the screw cap 1 and the retaining ring 31 of the suction nozzle 3 are simultaneously abutted and fixed at four points. This prevents the screw cap 1 from shaking relative to the suction nozzle 3, thus preventing the suction nozzle 3 of the stand-up bag from falling and deforming or even leaking.

[0027] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different. Any equivalent or simple changes made based on the structure, features, and principles described in the concept of this utility model patent are included in the scope of protection of this utility model patent. Those skilled in the art of the technical field to which this utility model belongs may make various modifications or supplements to the specific embodiments described, or replace them with similar methods. As long as they do not deviate from the structure of this utility model or exceed the scope defined by this claim, they shall fall within the scope of protection of this utility model.

Claims

1. A self-standing bag nozzle cap that is easy to unscrew and not prone to broken rings, comprising a screw cap and a connecting ring. The inner side wall of the screw cap is provided with an internal thread that matches the outer side wall of the nozzle; the connecting ring includes two semi-circular connecting segments, two first tear strips, and multiple second tear strips. The upper edges of the two semi-circular connecting segments are fixedly connected to the lower opening edge of the screw cap through multiple second tear strips; it is characterized in that: Elastic pieces inclined inward are respectively provided at the leading ends of the two semi-circular connecting segments. The middle of the outer side surface of the leading end of the elastic piece of the first semi-circular connecting segment is connected to the middle of the trailing end of the second semi-circular connecting segment through one of the first tear strips. The middle of the trailing end of the first semi-circular connecting segment is connected to the middle of the outer side surface of the leading end of the elastic piece of the second semi-circular connecting segment through another first tear strip. The middle of the outer side surface of the leading end of each elastic piece is located inside the trailing end of the adjacent semi-circular connecting segment, and each elastic piece forms a one-way tooth that cooperates with the suction nozzle. The orientation of the one-way tooth is consistent with the rotation direction of the internal thread on the inner side wall of the screw cap.

2. The self-standing bag nozzle cap that is easy to unscrew and not prone to broken rings according to claim 1, wherein: There is a strip-shaped gap between the middle of the outer side surface of the leading end of the elastic piece and the trailing end of the adjacent semi-circular connecting segment, and the first tear strip is located at the middle position of the strip-shaped gap.

3. The self-standing bag nozzle cap that is easy to unscrew and not prone to broken rings as described in claim 1, characterized in that: Two arc-shaped positioning blocks and two arc-shaped guiding blocks are provided on the lower end surface of the lower end opening of the screw cap, and the arc-shaped positioning blocks and arc-shaped guiding blocks are alternately arranged in sequence along the rotation direction of the internal thread on the inner side wall of the screw cap.

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