Rotary liquid outlet structure for liquid packaging bag

Abstract

The invention relates to the technical field of sealing equipment, and discloses a rotary liquid outlet structure for a liquid packaging bag, the rotary liquid outlet structure comprises a rotary valve body, a rotary cover body and a limiting piece, the rotary valve body comprises a threaded cylinder, a covering cap annular plate and a rotary cylinder, one side of the covering cap annular plate is connected with the threaded cylinder, and the other side of the covering cap annular plate is connected with the rotary cylinder; the other side of the covering cap annular plate is connected with the rotating cylinder, external threads are formed in the outer wall of the threaded cylinder, and a liquid outlet hole is formed in the side wall of the rotating cylinder; the rotary cover body comprises a rotary cover cylinder, a rotary cover cap and a baffle, one end of the rotary cover cylinder is connected with the rotary cover cap, and the other end of the rotary cover cylinder is inserted into the rotary cylinder in a sliding manner; a connecting cavity is formed between the inner side wall of the rotating cover cap and the outer side wall of the rotating cover cylinder, the end, away from the covering cap annular plate, of the rotating cylinder is inserted into the connecting cavity, the baffle is coaxially arranged in the rotating cover cylinder, and the liquid packaging bag has the advantages of being suitable for liquid packaging bags and stable in sealing effect.

Description

Technical Field

[0001] The present application relates to the technical field of sealing equipment, and in particular to a rotating liquid discharge structure for a liquid packaging bag. Background Art

[0002] In the food industry, packaging bags, beverage bottles, beverage cans and other containers are often used to hold alcoholic beverages. The beverages are usually poured out by pulling open a pull ring or unscrewing the bottle cap.

[0003] When it is necessary to pour liquid multiple times in some use occasions, in order to facilitate opening the container and pouring out the right amount of liquid, a small faucet is generally installed on the market to achieve multiple pouring of beverage bottles and beverage cans; however, for liquid packaging bags, the way of installing the faucet is inconvenient to use because the shape of the packaging bag is not fixed and it is easy to accidentally touch the faucet switch; therefore, a liquid outlet sealing device that can be applied to the liquid packaging bag is needed to facilitate multiple pouring of the liquid in the packaging bag and ensure the sealing stability of the packaging bag. Summary of the invention

[0004] In order to obtain a liquid outlet sealing device that is suitable for packaging bags and has a stable sealing effect, the present application provides a rotating liquid outlet structure for liquid packaging bags.

[0005] The present application provides a rotating liquid discharge structure for a liquid packaging bag, which adopts the following technical solution: A rotary liquid outlet structure for a liquid packaging bag, comprising a rotary valve body, a rotary cover body and a stopper, wherein the rotary valve body comprises a threaded barrel, a cover annular plate and a rotating barrel, wherein one side of the cover annular plate is connected to the threaded barrel, and the other side of the cover annular plate is connected to the rotating barrel, wherein the threaded barrel, the cover annular plate and the inner cavity of the rotating barrel are interconnected, an external thread is provided on the outer wall of the threaded barrel, and a liquid outlet hole is provided on the side wall of the rotating barrel; The rotating cover body comprises a rotating cover cylinder, a rotating cover cap and a baffle, one end of the rotating cover cylinder is connected to the rotating cover cap, and the other end is slidably inserted in the rotating cylinder; a connecting cavity is formed between the inner side wall of the rotating cover cap and the outer side wall of the rotating cover cylinder, one end of the rotating cylinder away from the cover annular plate is inserted in the connecting cavity, and the baffle is coaxially arranged in the rotating cover cylinder; When the rotating cylinder is inserted into the connecting cavity and abuts against the bottom wall of the connecting cavity, the rotating cover cylinder can limit the liquid from flowing from the inner cavity of the threaded cylinder to the liquid outlet hole, and at this time, the limiter can limit the rotating cover body from sliding in the direction away from the rotating valve body; when the rotating cover body slides in the direction away from the rotating valve body, the rotating cover cylinder is away from the liquid outlet hole, and the liquid can flow from the inner cavity of the threaded cylinder to the liquid outlet hole and flow out from the liquid outlet hole.

[0006] By adopting the above technical solution, the combination of the rotating valve body, the rotating cover body and the limiter realizes the sealing and opening functions of the liquid outlet. The liquid outlet can be opened by rotating the rotating cover body, which is convenient to operate, simple in structure and not prone to equipment failure; at the same time, by moving the position of the rotating cover cylinder, the size of the opened liquid outlet can be adjusted to adjust the liquid flow rate; when the rotating cover cylinder leaves the liquid outlet, the liquid outlet is completely opened, and the liquid outlet speed is high and efficient; when the rotating cover cylinder restricts the liquid from flowing out of the liquid outlet, the limiter restricts the sliding of the rotating cover body, and the sealing effect of the packaging bag is stable.

[0007] Optionally, a rotating protrusion is provided on the inner wall of the rotating cap, and a spiral groove for the rotating protrusion to slide is provided on the outer wall of the rotating cylinder. When the rotating protrusion slides in the spiral groove, the rotating cover body can rotate on the rotating valve body and move towards or away from the rotating valve body; the limiting member is a limiting stop bar, which is provided on the side wall of the spiral groove, and the limiting stop bar and the end of the spiral groove close to the mouth cover annular plate form a clamping groove for clamping the rotating protrusion, and the outer wall of the limiting stop bar is an arc surface.

[0008] By adopting the above technical solution, the rotating protrusion on the inner wall of the rotating cap slides in the spiral groove on the outer wall of the rotating cylinder, so that the rotating cover body can rotate and move on the rotating valve body, and the operation process is stable and convenient. The setting of the limiter ensures the stability of the liquid outlet in the sealed state and avoids misoperation.

[0009] Optionally, the rotary valve body further comprises a support bar, and the support bar is arranged on a side wall of the cover annular plate facing the threaded barrel.

[0010] By adopting the above technical solution, when the threaded barrel is threadedly connected to the container, the support bar presses against the container and forms a stable connection surface together with the annular plate of the cover.

[0011] Optionally, an end cover is also included, which includes a cover body and an insert tube, a chamfer is provided on the inner wall of the rotating cover tube, the insert tube is interference fit in the rotating cover tube, and the end cover covers the end surface of the rotating cover tube; a clearance groove is provided on the inner wall of the rotating cover tube, and the clearance groove extends toward the axial direction of the rotating cover tube.

[0012] By adopting the above technical solution, an end cover is provided to cover the end of the rotating cover body, which can improve the aesthetics of the product.

[0013] Optionally, it also includes a sealing ring, which is coaxially sleeved on the outer wall of the rotating cylinder and arranged between the liquid outlet and the spiral groove, and a plurality of connecting blocks are arranged between the end face of the rotating cap and the end face of the sealing ring.

[0014] By adopting the above technical solution, the sealing ring and the rotating cover body can be fixed.

[0015] Optionally, it also includes a cleaning rod and a rotating part that drives the cleaning rod to rotate, a sealing plate is provided at one end of the rotating cover tube facing the rotating tube, a clearance hole is provided on the side wall of the rotating cover tube, and when the rotating protrusion is located in the positioning groove, the clearance hole overlaps with the liquid outlet; one end of the cleaning rod is rotatably arranged in the rotating cover tube, and the other end of the cleaning rod extends toward the clearance hole, and when the rotating cover body slides in the direction away from the rotating valve body, the cleaning rod is received in the rotating tube along with the rotating cover tube, and a number of bristles are evenly provided on the end of the cleaning rod, and the bristles can abut against the side wall of the liquid outlet.

[0016] By adopting the above technical solution, the design of the cleaning rod realizes the automatic cleaning function of the liquid outlet hole, thereby avoiding the blockage of the liquid outlet hole and the leakage of liquid.

[0017] Optionally, the rotating member includes a gear, a rack and a movable rod, the gear being coaxially arranged on the side wall of the cleaning rod; a first mounting seat is arranged on the inner wall of the rotating cover tube, a limiting block is arranged on the side wall of the rack, a limiting groove for sliding the limiting block is opened on the side wall of the first mounting seat, and the side of the rack facing away from the first mounting seat is meshed with the gear; a positioning seat is arranged on the baffle, the movable rod is connected to one end of the rack away from the threaded tube, and the other end of the movable rod away from the rack slides through the positioning seat.

[0018] By adopting the above technical solution, the rotation of the cleaning rod can be manually controlled to improve the cleaning effect of the liquid outlet hole.

[0019] Optionally, the cleaning rod includes a first rod, a spring and a second rod, the first rod is rotatably disposed in the rotating cover tube, a connecting groove for the first rod to be plugged into is provided at one end of the second rod, the spring is disposed in the connecting groove, the end of the second rod away from the first rod is an arc surface, a slider is provided on the side wall of the first rod, and a sliding groove for the slider to slide is provided in the second rod; when the yield hole overlaps with the liquid outlet hole, the end of the second rod is located in the liquid outlet hole; when the rotating cover body slides in the direction away from the rotating valve body, the second rod slides in the direction of the first rod and is received in the rotating tube.

[0020] By adopting the above technical solution, when the liquid outlet is closed, the cleaning rod can move toward the liquid outlet and extend into the liquid outlet, thereby improving the cleaning effect of the liquid outlet.

[0021] Optionally, a second mounting seat is provided on the inner wall of the rotating cover cylinder, a rotating seat is rotatably provided inside the second mounting seat, an insert block is provided at one end of the first rod away from the second rod, and a slot for interference fit of the insert block is opened on the rotating seat.

[0022] By adopting the above technical solution, the interference fit between the insert block and the slot not only realizes the rotational connection of the cleaning rod, but also facilitates the disassembly of the cleaning rod.

[0023] In summary, the present application includes at least one of the following beneficial effects: 1. By adopting the above technical solution, the combination of the rotary valve body, the rotary cover body and the limiter realizes the sealing and opening functions of the liquid outlet; the liquid outlet can be opened by rotating the rotary cover body, which is convenient to operate, simple in structure and not prone to equipment failure; at the same time, by moving the position of the rotary cover cylinder, the size of the opened liquid outlet can be adjusted to adjust the liquid flow rate; when the rotary cover cylinder leaves the liquid outlet, the liquid outlet is completely opened, the liquid outlet speed is fast, and the efficiency is high; when the rotary cover cylinder restricts the liquid from flowing out of the liquid outlet, the limiter restricts the sliding of the rotary cover body, and the sealing effect of the packaging bag is stable; 2. The design of the cleaning rod realizes the automatic cleaning function of the liquid outlet hole, avoiding the blockage of the liquid outlet hole and the leakage of liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of Example 1; Figure 2 is a schematic cross-sectional structural diagram of Example 1; Figure 3 is a schematic diagram of the explosion structure of Example 1; Figure 4 is a schematic cross-sectional structural diagram of Example 2; Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0025] Description of reference numerals: 1, rotating cover body; 11, rotating cover cylinder; 111, giving way groove; 112, giving way hole; 113, sealing plate; 114, first mounting seat; 1141, limiting groove; 115, second mounting seat; 116, rotating seat; 1161, slot; 12, rotating cover cap; 121, rotating protrusion; 13, baffle; 131, positioning seat; 2, rotating valve body; 21, threaded cylinder; 22, cover annular plate; 23, Rotating cylinder; 231, liquid outlet; 232, spiral groove; 24, support bar; 3, limit piece; 31, limit stop bar; 32, positioning groove; 4, end cover; 41, cover body; 42, plug-in cylinder; 5, sealing ring; 51, connecting block; 6, cleaning rod; 61, first rod; 611, slider; 62, second rod; 63, spring; 64, plug-in block; 7, rotating part; 71, gear; 72, rack; 73, movable rod; 8, bristles. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 This application is described in further detail. Example 1

[0027] The present application discloses a rotating liquid discharging structure for a liquid packaging bag. Figure 1 The rotary liquid discharge structure mainly includes a rotary valve body 2, a rotary cover body 1 and a limiter 3. Among them, a liquid discharge hole 231 is opened on the rotary valve body 2, and the liquid discharge hole 231 can be closed or opened when the rotary cover body 1 is controlled to rotate and slide; when the rotary cover body 1 closes the liquid discharge hole 231, the limiter 3 can limit the rotation of the rotary cover body 1, thereby ensuring the stability of the liquid discharge hole 231 when it is closed. The rotary liquid discharge structure in this embodiment can fully open the liquid discharge hole 231 for liquid discharge through the above structure, which is convenient and quick to operate, simple and durable in structure, and can also ensure liquid discharge efficiency; and by controlling the rotary sliding distance of the rotary cover body 1, the opening state of the liquid discharge hole 231 can be adjusted to adjust the liquid discharge speed.

[0028] Reference Figure 2 and Figure 3 In the embodiment of the present application, the rotary valve body 2 includes a threaded barrel 21, a cover annular plate 22, a rotating barrel 23 and a support bar 24. One side of the cover annular plate 22 is connected to the threaded barrel 21, and the other side of the cover annular plate 22 is connected to the rotating barrel 23. The support bar 24 is fixed to the side wall of the cover annular plate 22 facing the threaded barrel 21. The cavities in the threaded barrel 21, the cover annular plate 22 and the rotating barrel 23 are connected to each other. The threaded barrel 21, the cover annular plate 22, the rotating barrel 23 and the support bar 24 can be formed as one piece.

[0029] The outer wall of the threaded barrel 21 is provided with an external thread, which is used to be threadedly connected with a preset connection component at the liquid outlet of the corresponding packaging bag. Correspondingly, in other embodiments, it can also be threadedly connected with the bottle mouth of a container such as a beverage bottle. A plurality of support bars 24 are provided on the mouth cover annular plate 22. In this embodiment, the support bars 24 are symmetrically arranged on both sides of the threaded barrel 21. When the threaded barrel 21 is threadedly connected with the container, the support bars 24 press against the container and form a stable connection surface together with the mouth cover annular plate 22. The liquid outlet 231 is provided on the side wall of the rotary valve body 2. When the liquid outlet 231 is opened, the liquid in the container can enter the rotating barrel 23 along the inner cavity of the threaded barrel 21 and be sent out from the liquid outlet 231.

[0030] Reference Figure 2 and Figure 3 In the embodiment of the present application, the rotating cover body 1 includes a rotating cover cylinder 11, a rotating cover cap 12 and a baffle 13. One end of the rotating cover cylinder 11 is connected to the rotating cover cap 12, and the other end is slidably inserted in the rotating cylinder 23. The rotating cover cylinder 11 is inserted in the rotating cylinder 23, and the outer wall of the rotating cover cylinder 11 abuts against the inner wall of the rotating cylinder 23. The baffle 13 is coaxially fixed in the rotating cover cylinder 11 and is located near one end of the cover cap, and is used to limit the liquid from passing through the rotating cover cylinder 11. The baffle 13 can be a circular plate. In this embodiment, in order to facilitate demoulding when forming the rotating cover body 1, the baffle 13 is a truncated cone structure protruding toward one end of the rotating cover cap 12. Correspondingly, the end of the rotating cover barrel 11 away from the rotating cap 12 can be an open structure or a sealed structure; when the end of the rotating cover barrel 11 away from the rotating cap 12 is an open structure, the liquid can flow into the rotating cover barrel 11 and be blocked by the baffle 13. At this time, the liquid outlet 231 is mainly blocked by the side wall of the rotating cover barrel 11; when the end of the rotating cover barrel 11 away from the rotating cap 12 is a sealed structure, the liquid is restricted from entering the rotating cover barrel 11, and the liquid is restricted from flowing to the liquid outlet 231 mainly by the end face of the rotating cover barrel 11. In order to ensure the sealing effect of the liquid outlet 231, the outer wall diameter of the rotating cover barrel 11 can be slightly larger than the inner wall diameter of the rotating barrel 23, and the two slightly interfere with each other to restrict the liquid from entering the connecting surface between the rotating cover barrel 11 and the rotating barrel 23.

[0031] Reference Figure 2 and Figure 3In the embodiment of the present application, a connection cavity is formed between the inner wall of the rotating cap 12 and the outer wall of the rotating cover cylinder 11, and the end of the rotating cylinder 23 away from the cover annular plate 22 is inserted into the connection cavity. When the rotating cylinder 23 is inserted into the connection cavity and abuts against the bottom wall of the connection cavity, the rotating cover cylinder 11 can limit the liquid from flowing from the inner cavity of the threaded cylinder 21 to the liquid outlet 231. At this time, the stopper 3 can limit the sliding of the rotating cover body 1 in the direction away from the rotating valve body 2 to avoid accidental contact with the rotating cover cylinder 11, which causes the rotating cover body 1 to rotate; when the rotating cover body 1 slides in the direction away from the rotating valve body 2, the rotating cover cylinder 11 is away from the liquid outlet 231, and the liquid can flow from the inner cavity of the threaded cylinder 21 to the liquid outlet 231 and flow out from the liquid outlet 231.

[0032] Reference Figure 2 and Figure 3 In the embodiment of the present application, a rotating protrusion 121 is fixed on the inner wall of the rotating cap 12. The rotating protrusion 121 can be a circular block or a rectangular block. A spiral groove 232 is provided on the outer wall of the rotating cylinder 23 for the rotating protrusion 121 to slide. The spiral groove 232 extends spirally along the axis of the rotating cylinder 23. When the rotating protrusion 121 slides in the spiral groove 232, the rotating cover rotates relatively and moves toward or away from the rotating valve. The limiting member 3 is a limiting stop bar 31. The limiting stop bar 31 is arranged on the side wall of the spiral groove 232, and the limiting stop bar 31 and the end of the spiral groove 232 close to the cover annular plate 22 form a clamping groove 32 for clamping the rotating protrusion 121. The outer wall of the limiting stop bar 31 is an arc surface.

[0033] When the rotating protrusion 121 is located in the positioning groove 32, the rotating protrusion 121 can be limited to slide along the spiral groove 232 by the limiting stop bar 31, thereby increasing the stability when closing the liquid outlet 231; at the same time, the outer wall of the limiting stop bar 31 is designed as an arc surface, so that when an external force is applied to the rotating cover body 1 to make it rotate, the rotating protrusion 121 can be driven to slide over the limiting stop bar 31, so that it slides upward along the spiral groove 232, and the rotating cover tube 11 leaves the liquid outlet 231, and the liquid can flow out smoothly. Preferably, in order to facilitate the rotation of the rotating cover body 1, a plurality of anti-skid grooves can be circumferentially opened on the outer side wall of the rotating cap 12. Preferably, in order to have a certain stability when the rotating cover body 1 is rotated to any position, the rotating protrusion 121 and the bottom wall of the spiral groove 232 are pressed against each other, so that there is a certain friction force, which is convenient for adjusting the opening size of the liquid outlet 231. By cooperating with the rotating protrusion 121 and the spiral groove 232, the rotating cover body 1 can open the liquid outlet 231 by rotating. Compared with the method of directly sliding along the axial direction of the rotating valve body 2, it is not only convenient to adjust the rotation distance of the rotating cover body 1, but also this method can ensure the sealing between the rotating cover cylinder 11 and the rotating cylinder 23.

[0034] Reference Figure 2 and Figure 3 In an optional embodiment, the rotating liquid discharge structure also includes an end cover 4, which includes a cover body 41 and an insert tube 42. The insert tube 42 is interference-fitted into the rotating cover tube 11, and the end cover 4 covers the end surface of the rotating cover tube 11 to snap-fit ​​and close the end of the rotating cover body 1, thereby improving the aesthetics of the product; in order to facilitate the installation of the end cover 4, a chamfer is provided on the inner wall of the end of the rotating cover tube 11 in an annular direction to facilitate the insertion of the insert tube 42 into the rotating cover tube 11; further, a clearance groove 111 can also be provided on the inner wall of the rotating cover tube 11, and the clearance groove 111 extends toward the axial direction of the rotating cover tube 11. When the insert tube 42 is inserted, the rotating cover tube 11 has a certain deformation space, which is convenient for inserting or removing the insert tube 42.

[0035] Reference Figure 2 and Figure 3 In an optional embodiment, the rotary liquid outlet structure further includes a sealing ring 5, which is coaxially sleeved and fixed on the outer wall of the rotating cylinder 23, and can preferably be integrally formed with the rotating cylinder 23; at the same time, the sealing ring 5 is arranged between the liquid outlet hole 231 and the spiral groove 232. A connecting block 51 is arranged between the end face of the rotating cap 12 and the end face of the sealing ring 5. The connecting block 51 is a small rectangular block, and a plurality of connecting blocks 51 are arranged at intervals along the connecting surface between the rotating cap 12 and the sealing ring 5. When the rotary liquid outlet structure is not in use, the rotating cover body 1 and the rotary valve body 2 are fixedly connected by the connecting block 51, and the rotating protrusion 121 is just located in the locking groove 32; when the rotary liquid outlet structure begins to be used, the rotating cover body 1 is rotated to disconnect the connecting block 51 by external force.

[0036] The implementation principle of a rotating liquid discharge structure for a liquid packaging bag in an embodiment of the present application is as follows: when the rotating liquid discharge structure is in use, it is connected to a container via a threaded tube 21, and when the end face of the rotating cover body 1 abuts against the sealing ring 5, the rotating protrusion 121 is located in the positioning groove 32, and the rotating cover tube 11 closes the liquid discharge hole 231; when it is necessary to pour out the liquid in the container, it is only necessary to hold the rotating cap 12 and rotate the rotating cap 12 so that the rotating protrusion 121 slides out of the positioning groove 32 and slides along the threaded groove, and rotates away from the rotating valve body 2, thereby quickly opening the liquid discharge hole 231, and the liquid in the container can be poured out. Example 2

[0037] The difference between the embodiment of the present application and embodiment 1 is that a cleaning rod 6 is added to clean the side wall of the liquid outlet hole 231 to prevent the liquid or fixed impurities in the liquid from adhering to the side wall of the liquid outlet hole 231.

[0038] Reference Figure 4 and Figure 5In the embodiment of the present application, the rotating liquid outlet structure further includes a cleaning rod 6 and a rotating member 7 for driving the cleaning rod 6 to rotate. Specifically, a sealing plate 113 is provided at one end of the rotating cover cylinder 11 facing the rotating cylinder 23 to limit the liquid from entering the rotating cover cylinder 11; a clearance hole 112 is provided on the side wall of the rotating cover cylinder 11, and when the rotating protrusion 121 is located in the positioning groove 32, the clearance hole 112 overlaps with the liquid outlet hole 231; one end of the cleaning rod 6 is rotatably arranged in the rotating cover cylinder 11, and the other end of the cleaning rod 6 extends toward the clearance hole 112. When the rotating cover slides in the direction away from the rotary valve, the cleaning rod 6 is stored in the rotating cylinder 23 along with the rotating cover cylinder 11, and a number of bristles 8 are evenly arranged on the end of the cleaning rod 6, and the bristles 8 can abut against the side wall of the liquid outlet hole 231. When the rotary cover slides toward the rotary valve to close the liquid outlet 231, the clearance hole 112 overlaps with the liquid outlet 231, and the cleaning rod 6 and the bristles 8 enter the liquid outlet 231. The bristles 8 can abut against the side wall of the liquid outlet 231 to clean out the impurities that may exist in the liquid outlet 231. If the cleaning rod 6 is rotated by the rotating member 7, the side wall of the liquid outlet 231 can be cleaned.

[0039] Reference Figure 4 and Figure 5 In the embodiment of the present application, the rotating member 7 includes a gear 71, a rack 72, a movable rod 73 and a positioning seat 131. The gear 71 is coaxially fixed to the side wall of the cleaning rod 6; a first mounting seat 114 is fixed on the inner wall of the rotating cover cylinder 11, and the rack 72 extends along the axis of the rotating cover cylinder 11. One side of the rack 72 is provided with teeth and can mesh with the teeth on the gear 71. A limiting block 721 is fixed on the other side of the rack 72. The cross-section of the limiting block 721 is preferably "T"-shaped, and in other embodiments it can also be a dovetail shape or the like; a limiting groove 1141 for the limiting block 721 to slide is opened on the side wall of the first mounting seat 114, and the limiting groove 1141 also extends in the direction of the axis of the rotating cover cylinder 11. When the limiting block 721 slides in the limiting groove 1141, the rack 72 slides, driving the gear 71 to rotate, thereby driving the cleaning rod 6 to rotate.

[0040] A positioning seat 131 is coaxially fixed on the baffle 13, and the positioning seat 131 is preferably integrally formed on the side of the baffle 13 facing the rotating buckle cover. The movable rod 73 can be a round rod, a rectangular rod, etc., and a through hole for the movable rod 73 to slide is opened on the positioning seat 131. One end of the movable rod 73 is connected to the end of the rack 72 away from the threaded tube 21, and the other end of the movable rod 73 away from the rack 72 slides through the positioning seat 131. When it is necessary to clean the liquid outlet 231, open the rotating buckle cover, hold the movable rod 73 and slide it back and forth along the axis direction of the rotating cover tube 11, thereby driving the cleaning rod 6 to rotate.

[0041] Reference Figure 5In the present embodiment of the application, further, the cleaning rod 6 includes a first rod 61, a spring 63 and a second rod 62. One end of the first rod 61 is rotatably disposed in the rotating cover cylinder 11, and the other end is plugged into the second rod 62. A connecting groove for the first rod 61 to be plugged is provided at one end of the second rod 62, and the spring 63 is disposed in the connecting groove. The second rod 62 is away from the first rod 61 and can extend into the liquid outlet 231, and the portion of the second rod 62 extending into the liquid outlet 231 is an arc surface. A slider 611 is provided on the side wall of the first rod 61, and a slide groove for the slider 611 to slide is provided in the second rod 62; when the yield hole 112 overlaps with the liquid outlet hole 231, the end of the second rod 62 is located in the liquid outlet hole 231, and the slider 611 abuts against the upper side wall of the slide groove. At this time, rotating the second rod 62 can improve the cleaning effect of the liquid outlet hole 231; when the rotating cover slides in the direction away from the rotary valve, the second rod 62 is squeezed by the inner wall of the rotating cylinder 23, and can slide toward the first rod 61 and be stored in the rotating cylinder 23.

[0042] Reference Figure 5 In the present embodiment of the present application, a second mounting seat 115 is fixed on the inner wall of the rotating cover cylinder 11, a rotating seat 116 is rotatably arranged in the second mounting seat 115, an insert block 64 is fixed to the end of the first rod 61 away from the second rod 62, and a slot for interference fit of the insert block 64 is provided on the rotating seat 116. When the insert block 64 is inserted into the slot, the cleaning rod 6 can be rotatably connected to the rotating cover cylinder 11, and when the cleaning rod 6 needs to be replaced or cleaned, the cleaning rod 6 only needs to be pulled out toward the filter hole.

[0043] The implementation principle of this embodiment is: by adding a cleaning rod 6, each time the liquid outlet 231 is closed, the liquid outlet 231 can be opened once to avoid blockage; with the rotating member 7, the cleaning rod 6 is driven to rotate, which can further improve the cleaning effect of the liquid outlet 231. The segmented design of the first rod 61 and the second rod 62 and the use of the spring 63 ensure that the cleaning rod 6 can be flexibly extended and retracted during the sliding process to keep the liquid outlet 231 clean and sanitary. This design not only improves the user experience, but also increases the reliability and hygiene of the product.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotating liquid discharging structure for a liquid packaging bag, characterized in that: The invention comprises a rotary valve body (2), a rotary cover body (1) and a stopper (3); the rotary valve body (2) comprises a threaded barrel (21), a cover annular plate (22) and a rotary barrel (23); one side of the cover annular plate (22) is connected to the threaded barrel (21); the other side of the cover annular plate (22) is connected to the rotary barrel (23); the inner cavities of the threaded barrel (21), the cover annular plate (22) and the rotary barrel (23) are interconnected; an external thread is provided on the outer wall of the threaded barrel (21); and a liquid outlet hole (231) is provided on the side wall of the rotary barrel (23); The rotating cover body (1) comprises a rotating cover cylinder (11), a rotating cover cap (12) and a baffle (13); one end of the rotating cover cylinder (11) is connected to the rotating cover cap (12), and the other end is slidably inserted into the rotating cylinder (23); a connecting cavity is formed between the inner side wall of the rotating cover cap (12) and the outer side wall of the rotating cover cylinder (11); one end of the rotating cylinder (23) away from the cover annular plate (22) is inserted into the connecting cavity, and the baffle (13) is coaxially arranged in the rotating cover cylinder (11); When the rotating cylinder (23) is inserted into the connecting cavity and abuts against the bottom wall of the connecting cavity, the rotating cover cylinder (11) can limit the flow of liquid from the inner cavity of the threaded cylinder (21) to the liquid outlet hole (231), and at this time, the limiting member (3) can limit the sliding of the rotating cover body (1) in a direction away from the rotating valve body (2); when the rotating cover body (1) slides in a direction away from the rotating valve body (2), the rotating cover cylinder (11) moves away from the liquid outlet hole (231), and the liquid can flow from the inner cavity of the threaded cylinder (21) to the liquid outlet hole (231) and flow out from the liquid outlet hole (231).

2. A rotating liquid discharging structure for a liquid packaging bag according to claim 1, characterized in that: The inner wall of the rotary cover cap (12) is provided with a rotary protrusion (121), and the outer wall of the rotary cylinder (23) is provided with a spiral groove (232) for the rotary protrusion (121) to slide. When the rotary protrusion (121) slides in the spiral groove (232), the rotary cover body (1) can rotate on the rotary valve body (2) and move towards or away from the rotary valve body (2). The limiting member (3) is a limiting stop bar (31), which is provided on the side wall of the spiral groove (232). The limiting stop bar (31) and one end of the spiral groove (232) close to the cover annular plate (22) form a locking groove (32) for locking the rotary protrusion (121), and the outer wall of the limiting stop bar (31) is an arc surface.

3. A rotating liquid discharging structure for a liquid packaging bag according to claim 2, characterized in that: The rotary valve body (2) further comprises a support bar (24), wherein the support bar (24) is arranged on a side wall of the cover annular plate (22) facing the threaded barrel (21).

4. The rotating liquid discharging structure for a liquid packaging bag according to claim 2, characterized in that: The invention also comprises an end cover (4), the end cover (4) comprising a cover body (41) and an inserting tube (42), a chamfer is provided on the inner wall of the rotating cover tube (11), the inserting tube (42) is inserted into the rotating cover tube (11) by interference fit, and the end cover (4) covers the end surface of the rotating cover tube (11); a clearance groove (111) is provided on the inner wall of the rotating cover tube (11), and the clearance groove (111) extends in the axial direction of the rotating cover tube (11).

5. The rotating liquid discharging structure for a liquid packaging bag according to claim 2, characterized in that: It also comprises a sealing ring (5), the sealing ring (5) being coaxially sleeved on the outer wall of the rotating cylinder (23), and the sealing ring (5) being arranged between the liquid outlet hole (231) and the spiral groove (232), and a plurality of connecting blocks (51) being arranged between the end surface of the rotating cap (12) and the end surface of the sealing ring (5).

6. A rotating liquid discharging structure for a liquid packaging bag according to any one of claims 2 to 5, characterized in that: The invention also comprises a cleaning rod (6) and a rotating member (7) for driving the cleaning rod (6) to rotate; a sealing plate (113) is provided at one end of the rotating cover cylinder (11) facing the rotating cylinder (23); a clearance hole (112) is provided on the side wall of the rotating cover cylinder (11); when the rotating protrusion (121) is located in the locking groove (32), the clearance hole (112) overlaps with the liquid outlet hole (231); one end of the cleaning rod (6) is rotatably arranged in the rotating cover cylinder (11); the other end of the cleaning rod (6) extends in the direction of the clearance hole (112); when the rotating cover body (1) slides in a direction away from the rotating valve body (2), the cleaning rod (6) is received in the rotating cylinder (23) along with the rotating cover cylinder (11); a plurality of bristles (8) are evenly arranged on the end of the cleaning rod (6); the bristles (8) can abut against the side wall of the liquid outlet hole (231).

7. A rotating liquid discharging structure for a liquid packaging bag according to claim 6, characterized in that: The rotating member (7) comprises a gear (71), a rack (72) and a movable rod (73), wherein the gear (71) is coaxially arranged on the side wall of the cleaning rod (6); a first mounting seat (114) is arranged on the inner wall of the rotating cover cylinder (11), a limiting block (721) is arranged on the side wall of the rack (72), a limiting groove (1141) for the limiting block (721) to slide is opened on the side wall of the first mounting seat (114), and the side of the rack (72) away from the first mounting seat (114) is meshed with the gear (71); a positioning seat (131) is arranged on the baffle (13), and the movable rod (73) is connected to one end of the rack (72) away from the threaded cylinder (21), and the other end of the movable rod (73) away from the rack (72) slides through the positioning seat (131).

8. The rotating liquid discharging structure for a liquid packaging bag according to claim 7, characterized in that: The cleaning rod (6) comprises a first rod (61), a spring (63) and a second rod (62); the first rod (61) is rotatably arranged in the rotating cover cylinder (11); one end of the second rod (62) is provided with a connecting groove for the first rod (61) to be inserted; the spring (63) is arranged in the connecting groove; the end of the second rod (62) away from the first rod (61) is an arc surface; a sliding block (611) is arranged on the side wall of the first rod (61); and a sliding groove for the sliding block (611) to slide is arranged in the second rod (62); when the clearance hole (112) overlaps with the liquid outlet hole (231), the end of the second rod (62) is located in the liquid outlet hole (231); when the rotating cover body (1) slides in a direction away from the rotating valve body (2), the second rod (62) slides in the direction of the first rod (61) and is stored in the rotating cylinder (23).

9. The rotating liquid discharging structure for a liquid packaging bag according to claim 8, characterized in that: A second mounting seat (115) is arranged on the inner wall of the rotating cover cylinder (11), a rotating seat (116) is rotatably arranged inside the second mounting seat (115), an insert block (64) is arranged at one end of the first rod (61) away from the second rod (62), and a slot for interference fit of the insert block (64) is provided on the rotating seat (116).

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