CN111846592A

CN111846592A - Connecting nozzle and supplementary liquid packaging bag

Info

Publication number: CN111846592A
Application number: CN202010810911.6A
Authority: CN
Inventors: 李聪毅; 陈宏�
Original assignee: Guangzhou Menshen Packaging Co Ltd
Current assignee: Guangzhou Menshen Packaging Co Ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-10-30

Abstract

The invention relates to a connecting nozzle and a supplementary liquid packaging bag, which has the technical scheme that: under the condition that the first supporting ribs are positioned at the edge of the circular platform, the sealing part and the first annular skirt edge are limited so that the interior of the first annular skirt edge is isolated from the interior of the second cover part; under the condition that the first supporting rib is clamped in the first clamping groove, the sealing part and the first annular skirt edge are separated from limiting, so that the interior of the first annular skirt edge is communicated with the interior of the second cover part. The effect is as follows: first, no matter the connecting nozzle is in the state of liquid outlet or sealed liquid outlet failure, the second cover part is always clamped in the first cover part, and the second cover part is effectively prevented from being opened randomly from the outside. And in the whole liquid supplementing process, the liquid is in a sealed state and is suitable for being easily volatilized or is sealed when being transferred.

Description

Connecting nozzle and supplementary liquid packaging bag

Technical Field

The present invention relates to a plastic product, and more particularly, to a coupling nozzle and a supplementary liquid packaging bag.

Background

The beverage bottle is a very common article in our daily life, and the main function is to realize the liquid in the bottle.

But the cost of making of present beverage bottle is high, makes many enterprises can design a supplementary liquid wrapping bag for the beverage bottle very present, but this type of supplementary liquid wrapping bag need aim at the beverage bottleneck and pour the supplementary liquid into, makes the user when inaccurate, and the supplementary liquid is poured outside the beverage bottle, therefore needs a connection mouth to solve the problem that supplementary liquid wrapping bag is difficult to aim at the beverage bottle and carry out the replenishment.

Disclosure of Invention

In view of the disadvantages of the prior art, the present invention provides a connection nozzle and a supplementary liquid packaging bag, which have the advantages of transferring the liquid in the supplementary liquid packaging bag to the bottle body to be supplemented in a relatively sealed environment.

The technical purpose of the invention is realized by the following technical scheme: a connecting nozzle comprises a first cover part and a second cover part, wherein the first cover part is welded on a supplementary liquid packaging bag, and the second cover part is connected with a bottle body to be supplemented; the second cover portion is disposed within the first cover portion;

a first through hole for liquid to flow out is formed in the top surface of the second cover part; a circular ring platform is arranged on the top surface of the second cover part; a first clamping groove is formed in the edge of the circular ring platform; a sealing part is arranged in the first through hole; the inner wall of the second cover part is provided with a thread used for connecting with the bottle mouth of the bottle body to be supplemented;

a second through hole for liquid to flow out is formed in the top surface of the first cover part; the edge of the second through hole extends towards the direction of the inner part of the first cover part to form a first annular skirt matched with the sealing part; a first supporting rib matched with the first clamping groove is arranged on the inner side wall of the first cover part;

under the condition that the first supporting ribs are positioned at the edge of the circular platform, the sealing part and the first annular skirt edge are limited so that the interior of the first annular skirt edge is isolated from the interior of the second cover part; under the condition that the first supporting rib is clamped in the first clamping groove, the sealing part and the first annular skirt edge are separated from limiting, so that the interior of the first annular skirt edge is communicated with the interior of the second cover part.

Optionally, a first limiting part for limiting the second cover part in the first cover part is arranged on the inner wall of the first cover part; the second cover part is positioned between the first limiting part and the second through hole; a second limiting part in interference fit with the first limiting part is arranged at the edge of the bottom of the second cover part; under the condition that the first supporting rib is positioned at the edge of the circular ring platform, the second limiting part is limited at the first limiting part.

Optionally, the sealing portion includes a hemisphere in interference fit with the first annular skirt, and a plurality of feet; one end of the foot part is connected to the edge of the first through hole, and the other end of the foot part is connected to the hemisphere; and under the condition that the first supporting rib is positioned at the edge of the circular platform, the hemispheroid abuts against the inner side wall of the skirt edge.

Optionally, a first sliding section for the first supporting rib to slide and a second sliding section for the second supporting rib to slide are arranged on the edge of the circular platform; a second clamping groove is formed in the edge of the circular ring platform; the circular ring platform is outwards protruded along the axial direction to form a limiting section for limiting the second supporting rib to slide through the second clamping groove; the first sliding section, the first clamping groove, the second sliding section, the second clamping groove and the limiting section are sequentially arranged at the edge of the circular platform body;

a second supporting rib matched with the second clamping groove is arranged on the inner side wall of the first cover part;

under the condition that the first supporting rib is positioned on the first sliding section, the second supporting rib is positioned on the second sliding section, and the sealing part and the first annular skirt edge are limited so that the inside of the first annular skirt edge is isolated from the inside of the second cover part;

under the condition that the first supporting rib is clamped in the first clamping groove, the second supporting rib is clamped in the second clamping groove, and the sealing part and the first annular skirt edge are separated from limiting so that the inside of the first annular skirt edge is communicated with the inside of the second cover part.

Optionally, the first card slot includes a first side and a second side opposite to each other; a chamfer is arranged at the joint of the first side surface and the first sliding section; and a chamfer is arranged at the joint of the second side surface and the second sliding section.

Optionally, a chamfer is arranged at a joint of the second sliding section and the second clamping groove.

Optionally, the first sliding section is provided with an accommodating groove for clamping a first support rib to prevent the first support rib from sliding on the first sliding section; under the condition that the second limiting part is limited on the first limiting part, the first supporting rib abuts against the bottom surface of the accommodating groove.

Optionally, a plurality of embedded grooves are formed in the first limiting part; a plurality of positioning ribs which can be aligned with the plurality of embedded grooves in a one-to-one correspondence manner are arranged on the outer side wall of the second cover part; the first supporting rib is clamped in the first clamping groove under the condition that the positioning ribs are aligned to the corresponding embedded grooves.

Optionally, the first sliding section is inclined with respect to the top surface of the second cover part; the distance between the first end of the first sliding section and the top surface of the second cover part is greater than the distance between the second end of the first sliding section and the top surface of the second cover part; the first end is that the first sliding section is close to the one end of accommodating the groove, the second section is that the first sliding section is close to the one end of first draw-in groove.

Optionally, a supplementary liquid packaging bag comprises a packaging bag main body and the connecting nozzle; the first cover part is welded on the bottle mouth of the packaging bag main body.

In conclusion, the invention has the following beneficial effects:

first, no matter the connecting nozzle is in the state of liquid outlet or sealed liquid outlet failure, the second cover part is always clamped in the first cover part, and the second cover part is effectively prevented from being opened randomly from the outside.

And in the whole liquid supplementing process, the liquid is in a sealed state and is suitable for being easily volatilized or is sealed when being transferred.

Thirdly, the novel connecting mouth structure is more interesting in use.

Drawings

FIG. 1 is a schematic structural diagram of a first cover and a second cover in the present embodiment;

fig. 2 is a sectional view showing a state where the first cover part and the second cover part are sealed in this embodiment;

fig. 3 is a schematic view of the internal structure of the first cover part in the present embodiment;

fig. 4 is a sectional view of the first cover part in the present embodiment;

FIG. 5 is a schematic structural view of the second cover part in the present embodiment;

FIG. 6 is a sectional view of the second cover part in the present embodiment

FIG. 7 is a schematic view of the first position-limiting portion and the second position-limiting portion of the present embodiment;

FIG. 8 is a schematic view of the first support rib, the second support rib and the second cover (with the connection nozzle in the liquid discharge state) in this embodiment;

fig. 9 is a schematic view of the first support rib, the second support rib and the second cover portion (with the connection mouth in a sealed state) in this embodiment.

In the figure: 1. a first cover portion; 11. a second through hole; 12. a first annular skirt; 121. a first annular skirt body; 122. an annular sealing part; 13. a first support rib; 14. a first limiting part; 141. a groove is embedded; 15. a second support rib; 2. a second cover portion; 21. a first through hole; 22. a sealing part; 221. a hemisphere; 222. a foot portion; 23. a second limiting part; 24. positioning ribs; 25. a thread; 3. a circular ring platform; 31. a first card slot; 311. a first side surface; 312. a second side surface; 32. a first sliding section; 321. a containing groove; 33. a second sliding section; 34. a second card slot; 35. a limiting section; 4. a second annular skirt.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

The present application provides a connecting nozzle, as shown in fig. 1 and 2, which comprises a first cap portion 1 for welding on a supplementary liquid packaging bag, and a second cap portion 2 for connecting with a bottle to be supplemented; the second cover part 2 is disposed inside the first cover part 1;

a first through hole 21 for liquid to flow out is arranged on the top surface of the second cover part 2; a circular ring platform 3 is arranged on the top surface of the second cover part 2; a first clamping groove 31 is formed in the edge of the circular ring platform 3; a sealing portion 22 is provided in the first through hole 21 of the second cover portion 2; the inner wall of the second circular ring is provided with a thread 25 for connecting with the bottle mouth of the bottle body to be supplemented;

a second through hole 11 for liquid to flow out is arranged on the top surface of the first cover part 1; the edge of the second through hole 11 extends towards the direction of the inner part of the first cover part 1 to form a first annular skirt 12 matched with the sealing part 22; a first supporting rib 13 matched with the first clamping groove 31 is arranged on the inner side wall of the first cover part 1;

under the condition that the first supporting ribs 13 are positioned at the edge of the circular platform 3, the sealing part 22 is limited with the first annular skirt 12 so as to ensure that the inside of the first annular skirt 12 is separated from the inside of the second cover part 2; under the condition that the first supporting rib 13 is clamped in the first clamping groove 31, the sealing part 22 is separated from the first annular skirt 12 so as to enable the interior of the first annular skirt 12 to be communicated with the interior of the second cover part 2.

The connection mouth of this application is novel connection mouth, and 1 welding of first cap can be connected to second cap 2 when using on treating to supply the bottle with the supplementary bottle of treating, makes the supplementary liquid wrapping bag with treat that the supplementary bottle passes through the connection mouth of this application and connects, then the supplementary liquid passes through the connection mouth and inputs to treating in the supplementary bottle. As shown in fig. 2, fig. 2 shows the positional relationship between the first cover part 1 and the second cover part 2 when in use, and a circular ring platform 3 is provided on the top surface of the second cover part 2, where the top surface is the upper end surface of the second cover part 2 when the second cover part 2 is in use; the edge of the circular ring platform 3 is provided with a first clamping groove 31, the inner side wall of the first cover part 1 is provided with a first supporting rib 13 matched with the first clamping groove 31, and the first supporting rib 13 matched with the first clamping groove 31 can be clamped in the first clamping groove 31. In addition, a sealing part 22 is arranged in the first through hole 21 of the second cover part 2, a first annular skirt 12 which extends towards the inside of the first cover part 1 and is matched with the sealing part 22 is arranged at the edge of the second through hole 11, the sealing part 22 is matched with the sealing part 22, namely the sealing part 22 can be in limited fit with the first annular skirt 12 to realize that the inside of the first annular skirt 12 is isolated from the inside of the second cover part 2, the first annular skirt 12 is communicated with the outside of the first cover part 1, and when the sealing part 22 is in limited fit with the first annular skirt 12, liquid of the supplementary liquid packaging bag cannot flow out of the connecting nozzle. Can make first support muscle 13 shift to first draw-in groove 31 from the border of ring platform 3 through the user externally relative second lid 2 rotates first lid 1, under the condition that first support muscle 13 is located the border of ring platform 3, sealing portion 22 with first annular skirt 12 is spacing cooperation so that the inside of first annular skirt 12 is separated from the inside of second lid 2, makes the liquid of supplementary liquid wrapping bag can't flow from the connecting nozzle of this application. When the first cover part 1 is welded on the replenishing liquid packaging bag and the second cover part 2 is connected to the bottle body to be replenished, the first cover part 1 is rotated relative to the second cover part 2 through a user, the first supporting ribs 13 are rotated above the first clamping grooves 31, the first cover part 1 is pressed down towards the second cover part 2, the first supporting ribs 13 are clamped in the first clamping grooves 31, so that the first cover part 1 and the second cover part 2 are axially and relatively displaced, the sealing part 22 and the first annular skirt 12 are released from limiting fit, the inside of the first annular skirt 12 is communicated with the inside of the second cover part 2, and the liquid in the replenishing liquid packaging bag can flow out from the connecting nozzle of the replenishing liquid packaging bag. Second cap 2 sets up in first cap 1, first cap 1 welds on the supplementary liquid wrapping bag bottleneck, second cap 2 with wait to supply the bottle and be connected, supplementary liquid wrapping bag is located the top of waiting to supply the bottle, after sealing 22 and first annular shirt rim 12 relieved spacing cooperation, liquid in the supplementary liquid wrapping bag flows into the connection mouth of this application from second through-hole 11 on first cap 1 in, then liquid flows into in first through-hole 21 from second through-hole 11, flow into again and wait to supply in the bottle, in order to realize shifting the interior liquid of supplementary liquid wrapping bag to waiting to supply the bottle under the environment sealed relatively. The second cap part 2 is always inside the first cap part 1 so that the first cap part 1 can only be turned by connecting the bottle to be refilled to the thread 25 of the second cap part 2.

In addition, referring to fig. 2 and 7, the sealing portion 22 and the first annular skirt 12 are always located inside the connecting mouth, so that the sealing portion 22 and the first annular skirt 12 are protected from external contamination. Meanwhile, in the whole liquid supplementing process, the liquid is in a sealed state, so that the liquid is suitable for being easily volatilized, or the liquid with the requirement on sealing during transfer is sealed.

In an alternative embodiment, see fig. 2, 4 and 7, a first stop portion 14 is provided on the inner wall of the first cover portion 1. The second cover portion 2 is located between the first stopper portion 14 and the second through hole 11. A second limiting part 23 which is in interference fit with the first limiting part 14 is arranged at the bottom edge of the second cover part 2; the first position-limiting portion 14 and the second position-limiting portion 23 are in interference fit, that is, the second position-limiting portion 23 and the first position-limiting portion 14 limit each other, so that the second cover portion 2 is always limited to move between the first position-limiting portion 14 and the second through hole 11. In addition, under the condition that the first supporting rib 13 is clamped at the edge of the circular ring platform 3, the second limiting portion 23 is limited at the first limiting portion 14, and in the above paragraphs, after the first supporting rib 13 is drawn out from the first clamping groove 31 by drawing the first cover portion 1 away from the second cover portion 2, the first supporting rib 13 and the edge of the first circular skirt 12 are on the same horizontal line, and then the first cover portion 1 is rotated relative to the second cover portion 2 from the outside, so that the first supporting rib 13 is limited at the edge of the circular ring platform 3. When the second position-limiting portion 23 is just limited by the first position-limiting portion 14, the first cover portion 1 only needs to be rotated externally relative to the second cover portion 2, so that the first support rib 13 can be located on the edge of the circular platform 3.

In an alternative embodiment, referring to fig. 2 and 6, the first annular skirt 12 includes a first annular skirt body 121 formed to extend in a direction toward the inside of the first lid portion 1 at the rim of the second through hole 11, and an annular seal portion 122 extending radially outward of the rim of the first annular skirt body 121; the sealing part comprises a hemisphere 221 in interference fit with the annular sealing part 122 and a plurality of feet 222; one end of the foot 222 is connected to the edge of the first through hole 21, and the other end is connected to the hemisphere 221; under the condition that the first supporting rib 13 is located at the edge of the circular platform 3, the annular sealing portion 122 abuts against the spherical surface of the hemisphere 221, and because the annular sealing portion 122 is in interference fit with the hemisphere 221, the edge of the annular sealing portion 122 abuts against the spherical surface of the hemisphere 221 so as to realize a sealing effect, so that the inside of the first annular skirt 12 is separated from the inside of the second cover 2. When the edge of the annular sealing portion 122 is out of contact with the spherical surface of the hemisphere 221, the liquid in the refill liquid packaging bag can flow into the gap between the leg portions 222 through the second through hole 11, then flow into the second cap portion 2, and then flow into the bottle to be refilled from the inside of the second cap portion 2. In practical application, the connecting nozzle is installed on a soft-package supplementary liquid packaging bag, liquid in the supplementary liquid packaging bag needs to be thrown away after being added into a bottle body to be supplemented, and secondary use is prevented. Therefore, the annular sealing portion 122 and the hemisphere 221 are in interference fit, the first cap 1 is rotated relative to the second cap 2 by a user, the first supporting rib 13 is rotated above the first slot 31, the first cap 1 is pressed down towards the second cap 2, the first supporting rib 13 is clamped in the first slot 31, so that the first cap 1 and the second cap 2 are axially and relatively displaced, the annular sealing portion 122 abuts against the spherical surface of the hemisphere 221, so that the first cap 1 and the second cap 2 can relatively slide even in interference fit, the hemisphere 221 enters the first annular skirt body 121, the annular sealing portion 122 is located below the hemisphere 221, and the lower end surface of the hemisphere 221 is a plane, so that the annular sealing portion 122 is limited with the lower end surface of the hemisphere 221, and the connection nozzle cannot return to a sealing state again after being opened to a liquid outlet state.

Further, a second annular skirt 4 sealed with the first annular skirt body 121 is arranged in the second cover part 2, and the first annular skirt body 121 is attached to the inner wall of the second annular skirt 4, so that when the connecting nozzle is in a liquid outlet state, liquid cannot flow out from a gap between the first annular skirt body 121 and the second annular skirt 4.

In an alternative embodiment, referring to fig. 5, 8 and 9, a first sliding section 32 for sliding the first supporting rib 13 and a second sliding section 33 for sliding the second supporting rib 15 are provided on the edge of the circular platform 3. A second clamping groove 34 is further formed on the edge of the circular ring platform 3. A limiting section 35 for preventing the second support rib 15 from sliding through the second clamping groove 34 is formed on the edge of the circular ring platform 3 in a way of protruding outwards. First slip section 32, first draw-in groove 31, second slip section 33, second draw-in groove 34, spacing section 35 set gradually on the border of ring platform 3 body. When the first support rib 13 is located at the first sliding section 32, the second support rib 15 is located at the second sliding section 33, and the sealing portion 22 is limited with the first annular skirt 12 so as to isolate the inside of the first annular skirt 12 from the inside of the second cover portion 2; under the condition that the first supporting rib 13 is clamped in the first clamping groove 31, the second supporting rib 15 is clamped in the second clamping groove 34, and the sealing part 22 is separated from the first annular skirt 12 for limiting, so that the inside of the first annular skirt 12 is communicated with the inside of the second cover part 2.

And a second supporting rib 15 matched with the second clamping groove 34 is arranged on the inner side wall of the first cover part 1. When the first support rib 13 slides on the first sliding section 32, the second support rib 15 slides on the second sliding section 33. And when the first support rib 13 is clamped in the first clamping groove 31, the second support rib 15 is clamped in the second clamping groove 34. The first locking groove 31 and the second locking groove 34 are provided to make the locking of the first cover portion 1 and the second cover portion 2 more stable. The limiting section 35 can prevent the second support rib 15 from over-rotating, so that the first support rib 13 slides only between the first engaging groove 31 and the first sliding section 32, and the second support rib 15 slides only between the second engaging groove 34 and the second sliding section 33. In practical application, the connecting nozzle of the present application can be provided with a plurality of sets of the first sliding section 32, the first clamping groove 31, the second sliding section 33, the second clamping groove 34 and the limiting section 35. The arrangement of the limiting section 35 can make the corresponding first supporting rib 13 and the second supporting rib 15 only slide between the corresponding first sliding section 32, the corresponding first engaging groove 31, the corresponding second sliding section 33, and the corresponding second engaging groove 34. Spacing section 35 prevents that the user from because of the overrotation, meet stopping of spacing section 35 when the user rotates first cap 1, first support rib 13 just aligns with first draw-in groove 31, second support rib 15 just aligns with second draw-in groove 34, the user can realize that first support rib 13 just blocks to put in first draw-in groove 31 with second support rib 15 just blocks to put in second draw-in groove 34 with first cap 1 down this moment, also avoid appearing first support rib 13 simultaneously and insert the condition to second draw-in groove 34.

Further, referring to fig. 5, the first card slot 31 includes a first side 311 and a second side 312 opposite to each other; a chamfer is arranged at the joint of the first side surface 311 and the first sliding section 32; a chamfer is provided at the junction of the second side 312 and the second sliding section 33. The chamfer of first draw-in groove 31 all is used for dodging first support rib 13, because if first draw-in groove 31 designs into the spill, if when having the deviation to first lid 1 and second lid 2 machining dimension, there is the deviation first support rib 13 aligns with first draw-in groove 31, and first support rib 13 pushes down the in-process of first draw-in groove 31, and first slip segment 32 and the second slip segment 33 of first draw-in groove 31 both sides can be collided to first support rib 13, can push down to cause the hindrance to first support rib 13. In order to avoid the problem that the alignment of the first supporting rib 13 and the first clamping groove 31 is deviated due to the machining error, a chamfer is arranged at the joint of the first side surface 311 and the first sliding section 32; a chamfer is provided at the connection between the second side 312 and the second sliding section 33, so that the diameter of the opening end of the first slot 31 is larger than the diameter of the bottom end of the first slot 31. Even if there is an error in the processing, in the process that the first cover part 1 is pressed down toward the second cover part 2, the first support rib 13 will first touch one of the chamfers and then slide into the first engaging groove 31.

In practical applications, the distance between the first side surface 311 and the second side surface 312 is adapted to the thickness of the first supporting rib 13, so that the first cover part 1 and the second cover part 2 cannot rotate when the first supporting rib 13 is clamped between the first side surface 311 and the second side surface 312.

In an alternative embodiment, referring to fig. 5, 8 and 9, a chamfer is provided at a connection position of the second sliding section 33 and the second locking groove 34, where the chamfer is also used to solve the problem that when the machining sizes of the first cover 1 and the second cover 2 are deviated, the second supporting rib 15 and the second locking groove 34 are deviated in alignment, and since the two sides of the second locking groove 34 are respectively the limiting section 35 and the second sliding section 33, the second supporting rib 15 cannot pass over the limiting section 35, so that the situation that the second supporting rib 15 cannot be pressed down to the limiting section 35 does not exist. However, in the process that the second support rib 15 is pressed down to the second slot 34, the second support rib 15 collides with the second sliding section 33 on one side of the second slot 34, and the pressing down of the second support rib 15 is hindered. A chamfer is arranged at the joint of the second sliding section 33 and the second clamping groove 34, so that the diameter of the opening end of the second clamping groove 34 is larger than that of the bottom end of the second clamping groove 34. Even if there is an error in the processing, in the process of pressing the first cover part 1 down to the second cover part 2, the second support rib 15 will first touch the chamfer and then slide into the second locking groove 34.

In an alternative embodiment, referring to fig. 5, 8 and 9, the first sliding section 32 is provided with a receiving groove 321 for clamping the first supporting rib 13 to prevent the first supporting rib 13 from sliding on the first sliding section 32; when the second stopper portion 23 is stopped by the first stopper portion 14, the first support rib 13 abuts against the bottom surface of the accommodating groove 321. After in getting into first lid 1 with the assembly of second lid 2, when not uncapping the use, not adding circumferential direction's spacing to first support muscle 13, first lid 1 receives external force easily and makes first support muscle 13 freely slide on first slip section 32, has the condition that first support muscle 13 landing to first draw-in groove 31, and sealing portion 22 and first annular shirt rim 12 relieve spacingly so, lead to the liquid in the supplementary liquid packaging bag to flow from the connector nozzle of this application. In the present application, the accommodating groove 321 is disposed on the first sliding section 32 to avoid the above situation, the second limiting portion 23 is limited to the first limiting portion 14, the first supporting rib 13 abuts against the bottom surface of the accommodating groove 321, that is, when the first supporting rib 13 is clamped in the accommodating groove 321, the first cover portion 1 cannot make the first supporting rib 13 separate from the accommodating groove 321 by the external force in the axial direction. In practical application, the height of the accommodating groove 321 is small, and the first cover part 1 can be separated from the limit of the accommodating groove 321 by rotating the first cover part 1 circumferentially with a large force, so that the first cover part enters the first sliding section 32.

In an alternative embodiment, referring to fig. 3 and 5, a plurality of insertion grooves 141 are formed on the first position-limiting portion 14; a plurality of positioning ribs 24 which can be aligned with the plurality of insertion grooves 141 in a one-to-one correspondence manner are arranged on the outer side wall of the second cover part 2, and the alignment criterion is that the positioning ribs 24 and the insertion grooves 141 are positioned on the same vertical section of the second cover part 2; with the positioning rib 24 aligned with the corresponding insertion groove 141, the first support rib 13 is clamped in the first clamping groove 31. When the second cover portion 2 needs to be clamped in the first cover portion 1, the first support rib 13 needs to be aligned to the accommodating groove 321, the first support rib 13 is arranged on the inner wall of the first cover portion 1, the accommodating groove 321 is arranged on the circular ring platform 3, when the second cover portion 2 is assembled in the first cover portion 1, the circular ring platform 3 firstly enters the first cover portion 1, and therefore the accommodating groove 321 and the first support rib 13 are difficult to be positioned and assembled (the first support rib 13 is clamped in the accommodating groove 321), and when the second cover portion 2 is assembled in the first cover portion 1, the second cover portion 2 is located between the first limiting portion 14 and the second through hole 11, so that the positioning rib 24 can be machined on the outer side wall of the second cover portion 2. During assembly, the first support rib 13 can be finally assembled in the accommodating groove 321 by observing whether the positioning rib 24 is axially aligned with the accommodating groove 321 or not, if the positioning rib 24 is axially aligned with the accommodating groove 321.

The first slide section 32 is inclined with respect to the top surface of the second cover part 2; the distance between the first end of the first sliding section 32 and the top surface of the second cover part 2 is larger than the distance between the second end of the first sliding section 32 and the top surface of the second cover part 2; the first end is the end of the first sliding section 32 close to the accommodating groove 321, and the second end is the end of the first sliding section 32 close to the first clamping groove 31. When the first supporting rib 13 slides on the first sliding section 32, the first supporting rib 13 is inclined at a certain angle to be helpful for being gorged into the first slot 31.

The working process is as follows: in the initial state, the second cover part 2 is assembled in the first cover part 1, the first support rib 13 is clamped in the accommodating groove 321, and the sealing part 22 and the first annular skirt 12 form a limit position, so that the inside of the second cover part 2 is isolated from the inside of the first annular skirt 12. The first cover part 1 is welded on a replenishing liquid packaging bag, the bottle mouth of a bottle body to be replenished is connected to the thread 25 of the second cover part 2 in a threaded manner, a user twists the first cover part 1 to enable the first cover part 1 to rotate, the first supporting ribs 13 are separated from the limit of the accommodating grooves 321 under the action of stress and enter the first sliding section 32, then the user continuously twists the first cover part 1 to enable the second supporting ribs 15 to be limited by the limit sections 35, at the moment, the first supporting ribs 13 are aligned with the first clamping grooves 31, the second supporting ribs 15 are aligned with the second clamping grooves 34, the user presses the first cover part 1 towards the second cover part 2 to enable the first supporting ribs 13 to be clamped in the first clamping grooves 31, the second supporting ribs 15 are clamped in the second clamping grooves 34, and the limit of the sealing part 22 and the first annular skirt 12 is relieved, the supplementary liquid packaging bag is positioned above the bottle body to be supplemented, and the liquid in the supplementary liquid packaging bag can be poured into the bottle body to be supplemented from the connecting nozzle.

The application also provides a supplementary liquid packaging bag which comprises the connecting nozzle and a packaging bag main body, wherein the first cover part 1 is welded on the bottle opening of the packaging bag main body, and the connecting nozzle can also be used for supplementing beverage bottles, sauce bottles and wine bottles; the second cover part 2 is in threaded connection with the bottle opening of the packaging bag main body.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. The connecting nozzle is characterized by comprising a first cover part and a second cover part, wherein the first cover part is used for being welded on a supplementary liquid packaging bag, and the second cover part is used for being connected with a bottle body to be supplemented; the second cover portion is disposed within the first cover portion;

2. A connection nozzle according to claim 1, characterized in that a first retaining portion for retaining said second cover portion within the first cover portion is provided on an inner wall of said first cover portion; the second cover part is positioned between the first limiting part and the second through hole; a second limiting part in interference fit with the first limiting part is arranged at the edge of the bottom of the second cover part; under the condition that the first supporting rib is positioned at the edge of the circular ring platform, the second limiting part is limited at the first limiting part.

3. A connector according to claim 1, wherein said first annular skirt includes a first annular skirt body formed to extend in a direction toward the inside of the first cap portion at the rim of said second through hole, and an annular seal portion extending radially outwardly of the rim of said first annular skirt body; the sealing part comprises a hemisphere which is in interference fit with the annular sealing part and a plurality of feet; one end of the foot part is connected to the edge of the first through hole, and the other end of the foot part is connected to the hemisphere; and under the condition that the first supporting rib is positioned at the edge of the circular platform, the annular sealing part is abutted against the spherical surface of the hemisphere.

4. A connector according to claim 2, wherein a first sliding section for the first support rib to slide and a second sliding section for the second support rib to slide are provided on the edge of the circular platform; a second clamping groove is formed in the edge of the circular ring platform; the circular ring platform is outwards protruded along the axial direction to form a limiting section for limiting the second supporting rib to slide through the second clamping groove; the first sliding section, the first clamping groove, the second sliding section, the second clamping groove and the limiting section are sequentially arranged at the edge of the circular platform body;

5. The connector nozzle of claim 4, wherein said first card slot includes first and second opposing sides; a chamfer is arranged at the joint of the first side surface and the first sliding section; and a chamfer is arranged at the joint of the second side surface and the second sliding section.

6. A connector according to claim 4, wherein a junction of said second sliding section and said second locking groove is provided with a chamfer.

7. A connector according to claim 3, wherein the first sliding section is provided with a receiving groove for engaging the first support rib to limit the first support rib to slide on the first sliding section; under the condition that the second limiting part is limited on the first limiting part, the first supporting rib abuts against the bottom surface of the accommodating groove.

8. The connecting nozzle according to claim 7, wherein a plurality of insertion grooves are formed on the first position-limiting portion; a plurality of positioning ribs which can be aligned with the plurality of embedded grooves in a one-to-one correspondence manner are arranged on the outer side wall of the second cover part; the first supporting rib is clamped in the first clamping groove under the condition that the positioning ribs are aligned to the corresponding embedded grooves.

9. A connection nozzle according to claim 7, characterized in that said first sliding section is inclined with respect to the top surface of said second cover portion; the distance between the first end of the first sliding section and the top surface of the second cover part is greater than the distance between the second end of the first sliding section and the top surface of the second cover part; the first end is that the first sliding section is close to the one end of accommodating the groove, the second section is that the first sliding section is close to the one end of first draw-in groove.

10. A refill pack packaging bag comprising a packaging bag main body and the connecting nozzle according to any one of claims 1 to 9; the first cover part is welded on the bottle mouth of the packaging bag main body.