A connection nozzle and a supplementary liquid packaging bag

Abstract

The present invention relates to a connecting nozzle and a replenishing liquid packaging bag, and the key points of the technical solution are: when the first supporting rib is located at the edge of the circular platform, the sealing part and the first annular skirt are limited so that the interior of the first annular skirt is isolated from the interior of the second cover; when the first supporting rib is stuck in the first slot, the sealing part and the first annular skirt are disengaged so that the interior of the first annular skirt is connected with the interior of the second cover. Effect: First, no matter whether the connecting nozzle is in a state of discharging liquid or the seal cannot discharge liquid, the second cover is always stuck in the first cover, effectively preventing the second cover from being opened at will from the outside. Second, during the entire liquid replenishing process, the liquid is in a sealed state, which is suitable for liquids that are easy to volatilize or require sealing during transfer.

Description

Technical Field

[0001] The present invention relates to a plastic product, and more particularly to a connecting nozzle and a supplementary liquid packaging bag. Background Art

[0002] Beverage bottles are very common items in our daily lives, and their main function is to hold liquids in the bottles.

[0003] However, the production cost of beverage bottles is high, so many companies will design a replenishing liquid packaging bag for beverage bottles. However, this type of replenishing liquid packaging bag needs to be aligned with the beverage bottle mouth to pour the replenishing liquid. When the user is not aligned, the replenishing liquid will pour out of the beverage bottle. Therefore, a connecting nozzle is needed to solve the problem that the replenishing liquid packaging bag is difficult to align with the beverage bottle to replenish. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a connecting nozzle and a replenishing liquid packaging bag, which have the advantage of being able to transfer the liquid in the replenishing liquid packaging bag to the bottle to be replenished in a relatively sealed environment.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a connecting nozzle, comprising a first cover portion for welding on a replenishing liquid packaging bag, and a second cover portion for connecting with a bottle to be replenished; the second cover portion is arranged inside the first cover portion;

[0006] A first through hole for liquid to flow out is provided on the top surface of the second cover; a circular platform is provided on the top surface of the second cover; a first clamping groove is provided at the edge of the circular platform; a sealing portion is provided in the first through hole; a thread for connecting with the bottle mouth of the bottle to be replenished is provided on the inner wall of the second cover;

[0007] A second through hole for liquid to flow out is provided on the top surface of the first cover portion; the edge of the second through hole extends toward the interior of the first cover portion to form a first annular skirt adapted to the sealing portion; a first supporting rib adapted to the first slot is provided on the inner side wall of the first cover portion; when the first supporting rib is located at the edge of the circular platform, the sealing portion and the first annular skirt are limited in position so that the interior of the first annular skirt is isolated from the interior of the second cover portion; when the first supporting rib is clamped in the first slot, the sealing portion and the first annular skirt are disengaged from the limit position so that the interior of the first annular skirt is connected to the interior of the second cover portion.

[0008] Optionally, a first limiting portion for limiting the second cover portion within the first cover portion is provided on the inner wall of the first cover portion; the second cover portion is located between the first limiting portion and the second through hole; a second limiting portion that is interference fit with the first limiting portion is provided at the bottom edge of the second cover portion; when the first supporting rib is located at the edge of the circular platform, the second limiting portion is limited to the first limiting portion.

[0009] Optionally, the sealing portion includes a hemisphere that is interference fit with the first annular skirt, and a plurality of feet; one end of the foot is connected to the edge of the first through hole, and the other end is connected to the hemisphere; when the first supporting rib is located at the edge of the circular platform, the hemisphere abuts against the inner wall of the skirt.

[0010] Optionally, a first sliding section for sliding the first supporting rib and a second sliding section for sliding the second supporting rib are provided on the edge of the annular platform; a second clamping groove is also provided on the edge of the annular platform; the annular platform protrudes outwardly in the axial direction to form a limiting section for limiting the second supporting rib from sliding 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 provided on the edge of the annular platform body;

[0011] A second supporting rib adapted to the second slot is provided on the inner side wall of the first cover;

[0012] When the first supporting rib is located at the first sliding section, the second supporting rib is located at the second sliding section, and the sealing portion is limited to the first annular skirt so that the interior of the first annular skirt is isolated from the interior of the second cover;

[0013] When 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 are disengaged from the limit position so that the interior of the first annular skirt is connected with the interior of the second cover.

[0014] Optionally, the first slot includes a first side surface and a second side surface that are opposite to each other; a chamfer is provided at a connection between the first side surface and the first sliding section; and a chamfer is provided at a connection between the second side surface and the second sliding section.

[0015] Optionally, a chamfer is provided at a connection between the second sliding section and the second slot.

[0016] Optionally, a receiving groove is provided on the first sliding section for clamping the first supporting rib to prevent the first supporting rib from sliding on the first sliding section; when the second limiting portion is limited to the first limiting portion, the first supporting rib abuts against the bottom surface of the receiving groove.

[0017] Optionally, a plurality of embedding grooves are provided on the first limiting portion; a plurality of positioning ribs which can be aligned one-to-one with the plurality of embedding grooves are provided on the outer side wall of the second cover portion; when the plurality of positioning ribs are aligned with the plurality of embedding grooves which correspond one-to-one, the first supporting rib is clamped in the first clamping groove.

[0018] Optionally, the first sliding section is inclined relative to the top surface of the second cover portion; the distance between the first end of the first sliding section and the top surface of the second cover portion is greater than the distance between the second end of the first sliding section and the top surface of the second cover portion; the first end is an end of the first sliding section close to the receiving slot, and the second end is an end of the first sliding section close to the first card slot.

[0019] Optionally, a replenisher liquid packaging bag includes a packaging bag body and the above-mentioned connecting nozzle; the first cover is welded on the bottle mouth of the packaging bag body.

[0020] In summary, the present invention has the following beneficial effects:

[0021] Firstly, no matter whether the connecting nozzle is in a state of discharging liquid or sealed and unable to discharge liquid, the second cover part is always stuck in the first cover part, effectively preventing the second cover part from being opened arbitrarily from the outside.

[0022] Secondly, during the entire liquid replenishment process, the liquid is in a sealed state, which is suitable for liquids that are easy to evaporate or require sealing during transfer.

[0023] Thirdly, the new connection nozzle structure makes it more interesting to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the first cover portion and the second cover portion in this embodiment;

[0025] Figure 2 is a cross-sectional view of the sealing state of the first cover part and the second cover part in this embodiment;

[0026] Figure 3 is a schematic diagram of the internal structure of the first cover portion in this embodiment;

[0027] Figure 4 is a cross-sectional view of the first cover portion in this embodiment;

[0028] Figure 5is a schematic structural diagram of the second cover portion in this embodiment;

[0029] Figure 6 is a cross-sectional view of the second cover portion in this embodiment

[0030] Figure 7 is a schematic diagram of the cooperation between the first limiting portion and the second limiting portion in this embodiment;

[0031] Figure 8 Schematic diagram of the coordination of the first supporting rib, the second supporting rib and the second cover portion (the connecting nozzle is in the liquid discharge state) in this embodiment;

[0032] Fig. 9 It is a schematic diagram of the coordination of the first supporting rib, the second supporting rib and the second cover portion (the connecting nozzle is in a sealed state) in this embodiment.

[0033] In the figure: 1, first cover; 11, second through hole; 12, first annular skirt; 121, first annular skirt body; 122, annular sealing portion; 13, first supporting rib; 14, first limiting portion; 141, embedding groove; 15, second supporting rib; 2, second cover; 21, first through hole; 22, sealing portion; 221, hemispherical body; 222, foot; 23, second limiting portion; 24, positioning rib; 25, thread; 3, annular platform; 31, first slot; 311, first side; 312, second side; 32, first sliding section; 321, receiving groove; 33, second sliding section; 34, second slot; 35, limiting section; 4, second annular skirt. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] The present application provides a connection nozzle, such as Figure 1 , Figure 2 As shown, it comprises a first cover portion 1 for welding on a replenishing liquid packaging bag, and a second cover portion 2 for connecting with a bottle to be replenished; the second cover portion 2 is arranged inside the first cover portion 1;

[0036] A first through hole 21 for liquid to flow out is provided on the top surface of the second cover 2; a circular platform 3 is provided on the top surface of the second cover 2; a first clamping groove 31 is provided at the edge of the circular platform 3; a sealing portion 22 is provided in the first through hole 21 of the second cover 2; a thread 25 for connecting with the bottle mouth of the bottle to be replenished is provided on the inner wall of the second circular ring;

[0037] A second through hole 11 for liquid to flow out is provided on the top surface of the first cover portion 1; a first annular skirt 12 adapted to the sealing portion 22 is formed along the edge of the second through hole 11 extending toward the inside of the first cover portion 1; a first supporting rib 13 adapted to the first slot 31 is provided on the inner side wall of the first cover portion 1;

[0038] When the first support rib 13 is located at the edge of the circular platform 3, the sealing portion 22 is limited by the first annular skirt 12 so that the interior of the first annular skirt 12 is isolated from the interior of the second cover 2; when the first support rib 13 is clamped in the first clamping groove 31, the sealing portion 22 is disengaged from the first annular skirt 12 so that the interior of the first annular skirt 12 is connected to the interior of the second cover 2.

[0039] The connection nozzle of the present application is a new type of connection nozzle. The first cover 1 is welded on the replenishing liquid packaging bag. When in use, the second cover 2 can be connected to the bottle to be replenished, so that the replenishing liquid packaging bag and the bottle to be replenished are connected through the connection nozzle of the present application, and then the replenishing liquid is input into the bottle to be replenished through the connection nozzle. Figure 2 As shown, Figure 2In order to determine the positional relationship between the first cover portion 1 and the second cover portion 2 when in use, a circular platform 3 is provided on the top surface of the second cover portion 2, and the top surface here is the upper end surface of the second cover portion 2 when the second cover portion 2 is in use; a first clamping groove 31 is opened at the edge of the circular platform 3, and a first supporting rib 13 adapted to the first clamping groove 31 is provided on the inner side wall of the first cover portion 1, and being adapted to the first clamping groove 31 means that the first supporting rib 13 can be clamped into the first clamping groove 31. In addition, a sealing portion 22 is provided in the first through hole 21 of the second cover portion 2, and a first annular skirt 12 extending toward the interior of the first cover portion 1 and matched with the sealing portion 22 is provided at the edge of the second through hole 11. The matching with the sealing portion 22 means that the sealing portion 22 can be limitedly matched with the first annular skirt 12 to achieve isolation of the interior of the first annular skirt 12 from the interior of the second cover portion 2, while the first annular skirt 12 is communicated with the exterior of the first cover portion 1. Then, when the sealing portion 22 is limitedly matched with the first annular skirt 12, the liquid in the replenishing liquid packaging bag cannot flow out from the connecting nozzle of the present application. The user can rotate the first cover part 1 relative to the second cover part 2 from the outside to move the first support rib 13 from the edge of the circular platform 3 to the first slot 31. When the first support rib 13 is located at the edge of the circular platform 3, the sealing part 22 and the first annular skirt 12 are limitedly cooperated to isolate the interior of the first annular skirt 12 from the interior of the second cover part 2, so that the liquid in the replenishing liquid packaging bag cannot flow out from the connecting nozzle of the present application. When the first cover part 1 is welded to the replenishing liquid packaging bag and the second cover part 2 is connected to the bottle to be replenished, the user rotates the first cover part 1 relative to the second cover part 2 from the outside to make the first support rib 13 rotate to the top of the first card slot 31, and then presses the first cover part 1 toward the second cover part 2. The first support rib 13 is clamped in the first card slot 31 to make the first cover part 1 and the second cover part 2 axially displaced relative to each other, thereby making the sealing part 22 and the first annular skirt 12 axially displaced relative to each other, so that the sealing part 22 and the first annular skirt 12 are released from the limiting fit, and the interior of the first annular skirt 12 is connected with the interior of the second cover part 2, so that the liquid in the replenishing liquid packaging bag can flow out from the connecting nozzle of the present application. The second cover 2 is arranged inside the first cover 1, the first cover 1 is welded on the bottle mouth of the replenishing liquid packaging bag, the second cover 2 is connected to the bottle to be replenished, the replenishing liquid packaging bag is located above the bottle to be replenished, and when the sealing portion 22 and the first annular skirt 12 are released from the limiting cooperation, the liquid in the replenishing liquid packaging bag flows from the second through hole 11 on the first cover 1 into the connecting nozzle of the present application, and then the liquid flows from the second through hole 11 into the first through hole 21, and then flows into the bottle to be replenished, so as to realize the transfer of the liquid in the replenishing liquid packaging bag to the bottle to be replenished in a relatively sealed environment. The second cover 2 is always inside the first cover 1, so that the first cover 1 can only be rotated by connecting the bottle to be replenished to the thread 25 of the second cover 2.

[0040] Also, see Figure 2and Figure 7 The sealing part 22 and the first annular skirt 12 are always inside the connecting nozzle, so that the sealing part 22 and the first annular skirt 12 are protected from external pollution. At the same time, the liquid is in a sealed state during the entire liquid replenishing process, which is suitable for liquids that are easy to volatilize or require sealing during transfer.

[0041] In an alternative embodiment, see Figure 2 , Figure 4 and Figure 7 , a first limiting portion 14 is provided on the inner wall of the first cover 1. The second cover 2 is located between the first limiting portion 14 and the second through hole 11. A second limiting portion 23 is provided at the bottom edge of the second cover 2, which is in interference fit with the first limiting portion 14; the interference fit between the first limiting portion 14 and the second limiting portion 23 means that the second limiting portion 23 and the first limiting portion 14 are mutually limited, so that the second cover 2 is always limited to move between the first limiting portion 14 and the second through hole 11. In addition, when the first support rib 13 is clamped on the edge of the annular platform 3, the second limiting portion 23 is limited to the first limiting portion 14. When in the above paragraph, the first cover 1 is pulled away from the first clamping groove 31 by pulling the first cover 1 away from the second cover 2, the first support rib 13 and the edge of the first annular skirt 12 are on the same horizontal line, and then the first cover 1 is rotated relative to the second cover 2 externally, so that the first support rib 13 is limited to the edge of the annular platform 3. When the second limiting portion 23 is just limited to the first limiting portion 14 , it is only necessary to rotate the first cover portion 1 relative to the second cover portion 2 externally so that the first supporting rib 13 can be on the edge of the annular platform 3 .

[0042] In an alternative embodiment, see Figure 2 and Figure 6The first annular skirt 12 includes a first annular skirt body 121 extending from the edge of the second through hole 11 toward the inside of the first cover 1, and an annular sealing portion 122 extending radially outward and inward from the edge of the first annular skirt body 121; the sealing portion includes a hemispherical body 221 with an interference fit with the annular sealing portion 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 hemispherical body 221; when the first supporting rib 13 is located at the edge of the annular platform 3, the annular sealing portion 122 abuts against the spherical surface of the hemispherical body 221, and due to the interference fit between the annular sealing portion 122 and the hemispherical body 221, the edge of the annular sealing portion 122 abuts against the spherical surface of the hemispherical body 221 to achieve a sealing effect, so that the interior of the first annular skirt 12 is isolated from the interior of the second cover 2. When the edge of the annular sealing portion 122 is out of contact with the spherical surface of the hemispherical body 221, the liquid in the replenishing liquid packaging bag can first flow into the gap between the foot portions 222 through the second through hole 11, then flow into the interior of the second cover portion 2, and then flow into the bottle to be replenished from the interior of the second cover portion 2. In actual application, the connecting nozzle of the present application is installed on the soft-pack replenishing liquid packaging bag, and the liquid in the replenishing liquid packaging bag needs to be thrown away after being added to the bottle to be replenished to prevent secondary use. Therefore, the annular sealing portion 122 of the present application has an interference fit with the hemispherical body 221. By the user rotating the first cover portion 1 relative to the second cover portion 2 from the outside, the first support rib 13 is rotated to the top of the first slot 31, and then the first cover portion 1 is pressed down toward the second cover portion 2. The first support rib 13 is clamped in the first slot 31 to cause the first cover portion 1 and the second cover portion 2 to be axially displaced relative to each other. Since the annular sealing portion 122 abuts against the spherical surface of the hemispherical body 221, relative sliding is possible even with an interference fit, so that the hemispherical body 221 enters into the first annular skirt body 121, and the annular sealing portion 122 is located below the hemispherical body 221. Since the lower end surface of the hemispherical body 221 is a plane, the annular sealing portion 122 is limited by the lower end surface of the hemispherical body 221, so that the connecting nozzle cannot return to the sealed state after being opened to the liquid discharge state.

[0043] Furthermore, a second annular skirt 4 is provided in the second cover portion 2 to form a seal with the first annular skirt body 121. 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 discharge state, the liquid cannot flow out from the gap between the first annular skirt body 121 and the second annular skirt 4.

[0044] In an alternative embodiment, see Figure 5 , Figure 8 and Fig. 9A 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 also provided on the edge of the circular platform 3. A limiting section 35 is formed on the edge of the circular platform 3 to prevent the second supporting rib 15 from sliding through the second clamping groove 34. 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 are sequentially provided on the edge of the body of the circular platform 3. When the first support rib 13 is located in the first sliding section 32, the second support rib 15 is located in the second sliding section 33, and the sealing portion 22 is limited by the first annular skirt 12 so that the interior of the first annular skirt 12 is isolated from the interior of the second cover 2; 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, and the sealing portion 22 is disengaged from the first annular skirt 12 so that the interior of the first annular skirt 12 is connected to the interior of the second cover 2.

[0045] A second support rib 15 adapted to the second slot 34 is provided on the inner side wall of the first cover portion 1. When the first support rib 13 slides in the first sliding section 32, the second support rib 15 slides in the second sliding section 33. When the first support rib 13 is clamped in the first slot 31, the second support rib 15 is clamped in the second slot 34. The purpose of setting the first slot 31 and the second slot 34 at the same time is to make the clamping 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 only slides between the first slot 31 and the first sliding section 32, and the second support rib 15 only slides between the second slot 34 and the second sliding section 33. In practical applications, the connection nozzle of the present application will be provided with multiple groups of first sliding sections 32, first slots 31, second sliding sections 33, second slots 34 and limiting sections 35. The setting of the limiting section 35 enables the corresponding first support rib 13 and the second support rib 15 to slide only between the corresponding first sliding section 32, the first slot 31, the second sliding section 33, and the second slot 34. The limiting section 35 prevents the user from over-rotating and encountering the obstruction of the limiting section 35 when the user rotates the first cover 1. The first support rib 13 is exactly aligned with the first slot 31, and the second support rib 15 is exactly aligned with the second slot 34. At this time, the user presses the first cover 1 down to the first cover 1 to realize that the first support rib 13 is exactly stuck in the first slot 31 and the second support rib 15 is exactly stuck in the second slot 34, and at the same time, the situation that the first support rib 13 is inserted into the second slot 34 is avoided.

[0046] Further, see Figure 5The first slot 31 includes a first side surface 311 and a second side surface 312 that are opposite to each other; a chamfer is provided at the connection between the first side surface 311 and the first sliding section 32; and a chamfer is provided at the connection between the second side surface 312 and the second sliding section 33. The chamfers of the first slot 31 are used to avoid the first support rib 13, because if the first slot 31 is designed to be concave, if there is a deviation in the processing dimensions of the first cover 1 and the second cover 2, there is a deviation in the alignment between the first support rib 13 and the first slot 31. When the first support rib 13 is pressed down into the first slot 31, the first support rib 13 will collide with the first sliding section 32 and the second sliding section 33 on both sides of the first slot 31, which will hinder the first support rib 13 from being pressed down. In order to avoid the problem of deviation in alignment between the first support rib 13 and the first clamping groove 31 caused by the above-mentioned processing error, a chamfer is provided at the connection between the first side surface 311 and the first sliding section 32; a chamfer is provided at the connection between the second side surface 312 and the second sliding section 33, so that the diameter of the opening end of the first clamping groove 31 is larger than the diameter of the bottom end of the first clamping groove 31. Even if there is a processing error, when the first cover 1 is pressed toward the second cover 2, the first support rib 13 will first hit one of the chamfers and then slide into the first clamping groove 31.

[0047] In practical applications, the distance between the first side surface 311 and the second side surface 312 matches the thickness of the first support rib 13 , so when the first support rib 13 is clamped between the first side surface 311 and the second side surface 312 , the first cover portion 1 and the second cover portion 2 cannot rotate.

[0048] In an alternative embodiment, see Figure 5 , Figure 8 and Fig. 9 , a chamfer is provided at the connection between the second sliding section 33 and the second slot 34. The chamfer is also used to solve the problem that when the processing dimensions of the first cover 1 and the second cover 2 are deviated, the second support rib 15 and the second slot 34 are aligned with each other. Since the two sides of the second slot 34 are the limiting section 35 and the second sliding section 33 respectively, the second support rib 15 cannot pass the limiting section 35, and there will be no situation that the second support rib 15 cannot be pressed down to the limiting section 35. However, in the process of the second support rib 15 being pressed down to the second slot 34, the second support rib 15 will collide with the second sliding section 33 on one side of the second slot 34, which will hinder the pressing down of the second support rib 15. A chamfer is provided at the connection between the second sliding section 33 and the second slot 34 so that the diameter of the opening end of the second slot 34 is larger than the diameter of the bottom end of the second slot 34. Even if there is an error in the processing, in the process of the first cover 1 being pressed down to the second cover 2, the second support rib 15 will first hit the chamfer and then slide into the second slot 34.

[0049] In an alternative embodiment, see Figure 5, Figure 8 and Fig. 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 limiting portion 23 is limited to the first limiting portion 14, the first supporting rib 13 abuts against the bottom surface of the receiving groove 321. After the second cover 2 is assembled into the first cover 1, when the cover is not opened for use, the first supporting rib 13 is not limited in circumferential rotation. The first cover 1 is easily subjected to external force to make the first supporting rib 13 slide freely on the first sliding section 32. If the first supporting rib 13 slides down to the first clamping groove 31, the sealing portion 22 and the first annular skirt 12 are released from the limit, causing the liquid in the replenishing liquid packaging bag to flow out from the connecting nozzle of the present application. In the present application, a receiving groove 321 is provided on the first sliding section 32 to avoid the above situation. When 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 receiving groove 321. That is, when the first supporting rib 13 is stuck in the receiving groove 321, the first cover 1 cannot be separated from the receiving groove 321 by external axial force. In actual application, the height of the receiving groove 321 is relatively small, and the first cover 1 can be circumferentially rotated with great force to separate the first cover 1 from the limiting position of the receiving groove 321 and enter the first sliding section 32.

[0050] In an alternative embodiment, see Figure 3 and Figure 5 A plurality of embedding grooves 141 are provided on the first limiting portion 14; a plurality of positioning ribs 24 which can be aligned one-to-one with the plurality of embedding grooves 141 are provided on the outer side wall of the second cover portion 2, and the alignment means that the positioning ribs 24 and the embedding grooves 141 are located on the same vertical section of the second cover portion 2; when the positioning ribs 24 are aligned with the corresponding embedding grooves 141, the first supporting rib 13 is clamped in the first clamping groove 31. When the second cover 2 needs to be inserted into the first cover 1, since the first support rib 13 needs to be aligned with the receiving groove 321, the first support rib 13 is arranged on the inner wall of the first cover 1, and the receiving groove 321 is arranged on the annular platform 3. When the second cover 2 is assembled into the first cover 1, the annular platform 3 first enters the first cover 1, so it is difficult to position and assemble the receiving groove 321 and the first support rib 13 (insert the first support rib 13 into the receiving groove 321). When the second cover 2 is assembled into the first cover 1, the second cover 2 is located between the first limiting portion 14 and the second through hole 11, so the positioning rib 24 can be processed on the outer side wall of the second cover 2. During assembly, it can be observed whether the positioning rib 24 is axially aligned with the receiving groove 321. If the positioning rib 24 is axially aligned with the receiving groove 321, the first support rib 13 will eventually be assembled in the receiving groove 321.

[0051] The first sliding section 32 is inclined relative to the top surface of the second cover 2; the distance between the first end of the first sliding section 32 and the top surface of the second cover 2 is greater than the distance between the second end of the first sliding section 32 and the top surface of the second cover 2; the first end is the end of the first sliding section 32 close to the receiving 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 support rib 13 slides on the first sliding section 32, it has a certain inclination angle to help the first support rib 13 enter the first clamping groove 31.

[0052] Working process: In the initial state, the second cover part 2 is assembled in the first cover part 1, and the first supporting rib 13 is clamped in the receiving groove 321. At this time, the sealing part 22 and the first annular skirt 12 form a limit, so that the interior of the second cover part 2 is isolated from the interior of the first annular skirt 12. The first cover part 1 is welded to the replenishing liquid packaging bag, and the bottle mouth of the bottle to be replenished is threadedly connected to the thread 25 of the second cover part 2. The user twists the first cover part 1 to rotate the first cover part 1, and the first supporting rib 13 is forced to break away from the limit of the receiving groove 321 and enter the first sliding section 32, and then continue to twist the first cover part 1 so that the second supporting rib 15 is limited by the limiting section 35. At this time, the first supporting rib 13 is aligned with the first card groove 31, and the second supporting rib 15 is aligned with the second card groove 34. The user presses the first cover part 1 toward the second cover part 2, so that the first supporting rib 13 is stuck in the first card groove 31, and the second supporting rib 15 is stuck in the second card groove 34. The limit of the sealing part 22 and the first annular skirt 12 is released, and the replenishing liquid packaging bag is located above the bottle to be replenished, and the liquid in the replenishing liquid packaging bag can be poured from the connecting nozzle into the bottle to be replenished.

[0053] The present application also provides a replenishing liquid packaging bag, including the above-mentioned connecting nozzle and the packaging bag main body, the first cover part 1 is welded on the bottle mouth of the packaging bag main body, and the connecting nozzle can also be used for replenishing beverage bottles, sauce bottles, and wine bottles; the second cover part 2 is threadedly connected to the bottle mouth of the packaging bag main body.

[0054] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A connection nozzle, characterized in that: It comprises a first cover part for welding on the replenishing liquid packaging bag, and a second cover part for connecting with the bottle to be replenished; the second cover part is arranged inside the first cover part; A first through hole for liquid to flow out is provided on the top surface of the second cover; a circular platform is provided on the top surface of the second cover; a first clamping groove is provided at the edge of the circular platform; a sealing portion is provided in the first through hole; a thread for connecting with the bottle mouth of the bottle to be replenished is provided on the inner wall of the second cover; A second through hole for liquid to flow out is provided on the top surface of the first cover; a first annular skirt adapted to the sealing portion is formed on the edge of the second through hole extending toward the inside of the first cover; a first supporting rib adapted to the first slot is provided on the inner side wall of the first cover; When the first supporting rib is located at the edge of the annular platform, the sealing portion and the first annular skirt are limited so that the interior of the first annular skirt is isolated from the interior of the second cover; when the first supporting rib is clamped in the first clamping groove, the sealing portion and the first annular skirt are disengaged so that the interior of the first annular skirt is connected to the interior of the second cover; A first limiting portion for limiting the second cover portion in the first cover portion is provided on the inner wall of the first cover portion; the second cover portion is located between the first limiting portion and the second through hole; a second limiting portion which is interference-fitted with the first limiting portion is provided at the bottom edge of the second cover portion; when the first supporting rib is located at the edge of the annular platform, the second limiting portion is limited to the first limiting portion; The first annular skirt includes a first annular skirt body extending from the edge of the second through hole in a direction toward the interior of the first cover portion, and an annular sealing portion extending radially outward and inward from the edge of the first annular skirt body; the sealing portion includes a hemispherical body that is interference fit with the annular sealing portion, and a plurality of feet; one end of the foot is connected to the edge of the first through hole, and the other end is connected to the hemispherical body; when the first supporting rib is located at the edge of the circular platform, the annular sealing portion abuts against the spherical surface of the hemispherical body.

2. The connection nozzle according to claim 1, characterized in that: A first sliding section for sliding the first supporting rib and a second sliding section for sliding the second supporting rib are arranged on the edge of the circular platform; a second clamping groove is also provided on the edge of the circular platform; the circular platform protrudes outwardly in the axial direction to form a limiting section for limiting the second supporting rib from sliding 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 arranged in sequence on the edge of the circular platform body; A second supporting rib adapted to the second slot is provided on the inner side wall of the first cover portion; When the first supporting rib is located at the first sliding section, the second supporting rib is located at the second sliding section, and the sealing portion is limited to the first annular skirt so that the interior of the first annular skirt is isolated from the interior of the second cover; When 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 are disengaged from the limit position so that the interior of the first annular skirt is connected with the interior of the second cover.

3. The connection nozzle according to claim 2, characterized in that: The first slot includes a first side surface and a second side surface that are opposite to each other; a chamfer is provided at a connection between the first side surface and the first sliding section; and a chamfer is provided at a connection between the second side surface and the second sliding section.

4. The connection nozzle according to claim 2, characterized in that: A chamfer is provided at a connection between the second sliding section and the second clamping slot.

5. The connection nozzle according to claim 2, characterized in that: A receiving groove is provided on the first sliding section for clamping the first supporting rib to limit the first supporting rib from sliding on the first sliding section; when the second limiting portion is limited to the first limiting portion, the first supporting rib abuts against the bottom surface of the receiving groove.

6. The connection nozzle according to claim 5, characterized in that: A plurality of embedding grooves are provided on the first limiting portion; a plurality of positioning ribs which can be aligned one-to-one with the plurality of embedding grooves are provided on the outer side wall of the second cover portion; when the plurality of positioning ribs are aligned with the plurality of embedding grooves which correspond one-to-one, the first supporting rib is clamped in the first clamping groove.

7. The connection nozzle according to claim 5, characterized in that: The first sliding section is inclined relative to the top surface of the second cover portion; the distance between the first end of the first sliding section and the top surface of the second cover portion is greater than the distance between the second end of the first sliding section and the top surface of the second cover portion; the first end is an end of the first sliding section close to the receiving groove, and the second end is an end of the first sliding section close to the first card groove.

8. A replenisher liquid packaging bag, characterized in that: It comprises a packaging bag body and a connecting nozzle according to any one of claims 1 to 7; the first cover is welded on the bottle mouth of the packaging bag body.

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