Blow molding container capable of preventing dripping liquid from hanging and gathering and closed end of blow molding container

Abstract

The invention relates to the technical field of blow molding containers, in particular to a blow molding container capable of preventing dripping liquid from hanging and gathering and provided with a closed end, the blow molding container comprises a bottle opening and a channel for pouring liquid, the channel is arranged at the top of a bottle body, and the bottle opening comprises a first flow guide section, a second flow guide section and a third flow guide section. The three flow guide sections are all stepped flow guide slopes, the inclination angles of the three flow guide sections are gradually increased, liquid sequentially passes through the first flow guide section, the second flow guide section and the third flow guide section when being poured to break the surface tension of the liquid, and the liquid is stably guided out in an accelerated mode; the backflow assembly is arranged at the bottom of the bottle opening and comprises a backflow sleeve, a backflow ring and a linkage ring; the backflow sleeve is arranged above the backflow ring, when liquid is poured, the liquid sequentially passes through the flow guide sections, surface tension is broken through gravitational component force in a stepped strengthening mode, the sticky liquid is stably guided out in an accelerated mode, meanwhile, liquid beads hung on the wall edge of the bottle opening enter the bottle body again through the backflow assembly, and the bottle body is prevented from being polluted.

Description

Technical Field

[0001] This invention relates to the field of blow molding container technology, specifically to a blow molding container that prevents dripping, sag, and aggregation, and has a closed end. Background Technology

[0002] Blow-molded containers are commonly used packaging tools in the medical field and are widely used in hospitals, clinics, home care and other scenarios. They are usually composed of a blow-molded hollow bottle body, a bottle mouth for pouring liquid medicine and a sealing cap. Some are used to hold viscous liquid medicine, medical ointment, oral syrup, disinfectant gel and other medical supplies. Their cleanliness, pollution prevention and liquid utilization rate are directly related to medical safety and treatment effect.

[0003] Existing blow-molded containers are prone to dripping and pooling when viscous medical liquids are poured. Due to their high viscosity, when viscous liquids come into contact with the inner wall of the bottle opening, the liquid molecules and the wall molecules form a certain adhesion force. When pouring, some of the viscous liquid cannot completely detach from the wall. As the pouring is slow, an adhesion layer forms on the inner wall of the bottle opening, while obvious dripping occurs on the outer wall. The dripping medical liquid easily absorbs dust and microorganisms from the environment, forming dirt clumps that contaminate the bottle. Furthermore, residual liquid in crevices such as the spiral grooves at the bottle opening is difficult to clean using conventional methods, easily leading to bacterial growth. At the same time, when users hold the bottle, the dripping medical liquid on the outer wall flows down the bottle, contaminating their hands and affecting the hygiene of medical operations. Summary of the Invention

[0004] The purpose of this invention is to provide a blow-molded container that prevents dripping, snagging, and aggregation, and has a closed end, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A blow-molded container with anti-drip and anti-fouling properties and a closed end, including a bottle mouth, is configured as a channel for liquid pouring. It is disposed at the top of the bottle body. The bottle mouth includes a first guide section, a second guide section, and a third guide section. The three guide sections are all stepped guide slopes with increasing inclination angles. When the liquid is poured, it passes through the first guide section, the second guide section, and the third guide section in sequence, breaking the surface tension of the liquid and realizing the smooth and accelerated discharge of the liquid.

[0007] A reflux assembly is located at the bottom of the bottle opening. The reflux assembly includes a reflux sleeve, a reflux ring, and a connecting ring. The reflux sleeve is positioned above the reflux ring and has a gradually changing inclined surface to guide liquid flow. The connecting ring is connected to the bottom of the reflux sleeve and is located inside the reflux ring. A first collection hole is provided on the top outer edge of the reflux ring, and a second collection hole is provided on the top outer edge of the connecting ring. Liquid can enter the bottle body through the inclined surface of the reflux sleeve and through the first and second collection holes.

[0008] Preferably, the top of the linkage ring is provided with multiple transmission plates, the top of the transmission plates is connected to a transmission bar, the transmission plates and transmission bars are located in the inner cavity of the return sleeve, and the inner cavity of the return sleeve has reserved space for movement, the top of the transmission bar is provided with a transmission block, and the position of the second collection hole is changed by controlling the rotation of the transmission block.

[0009] Preferably, a first spring is provided on one side of the transmission plate to provide elastic force to fix the position of the linkage ring.

[0010] Preferably, the bottle opening further includes a bottle rim and a spiral groove, the bottle rim being disposed on the outside of the third flow guide section, and the spiral groove being disposed on the outside of the first flow guide section.

[0011] Preferably, the top outer edge of the return ring is provided with a plurality of guide grooves, each of which is located between two adjacent first collection holes, and the guide groove is set as an inclined surface that is high in the middle and low at both ends. After the liquid enters the guide groove, it will be guided to the first collection hole by the inclined surface.

[0012] A closed end of an anti-drip flow blow-molded container includes a cap disposed at the top of the bottle mouth. The inner wall of the cap is provided with a spiral pattern that matches the spiral groove. The cap can be closed at the top of the bottle mouth by rotating it. A thrust block is provided at the bottom of the cap. When the cap is closed at the top of the bottle mouth, the thrust block and the transmission block cooperate to drive the linkage ring to rotate.

[0013] A liquid suction mechanism is disposed in the inner cavity of the bottle cap. The liquid suction mechanism includes a pressure block, an air bladder, a pressure plate, and a liquid suction tube. One side of the pressure block protrudes from the inner wall of the bottle cap. A pressure plate is disposed on one side of the pressure block. An air bladder is disposed on one side of the pressure plate. A liquid suction tube is disposed on the top of the air bladder. When the bottle cap is closed on the top of the bottle opening, the liquid suction tube generates suction.

[0014] Preferably, the inner wall of the bottle cap is provided with a liquid suction hole below the spiral pattern, and one end of the liquid suction tube is disposed in the liquid suction hole.

[0015] Preferably, a sealing ring is provided at one end of the inner wall of the suction tube, a flow-blocking plate is provided at one end of the inner wall of the sealing ring, a second spring is connected to one side of the flow-blocking plate, and a fixing ring is connected to one end of the second spring.

[0016] Preferably, the flow baffle plate is fitted with the sealing ring in a transitional manner, and the diameter of the flow baffle plate is smaller than the inner diameter of the suction tube.

[0017] Preferably, the bottom of the airbag is provided with a drain pipe, the bottom of the bottle cap is provided with a drain hole, the suction pipe is provided in the inner wall of the drain hole, and the drain hole corresponds to the outer surface of the reflux sleeve.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention provides a bottle opening with three stepped flow guide slopes with gradually increasing inclination angles. When the liquid is poured, it passes through each flow guide section in sequence. The surface tension is broken by the step-by-step enhancement of gravity, which enables the viscous liquid to be smoothly and acceleratedly discharged. At the same time, the liquid droplets hanging on the bottle opening wall are returned to the bottle body through the return component, which prevents the bottle body from being contaminated.

[0020] 2. In addition, to prevent liquid from leaking through the collection hole when pouring, the bottle cap rotates when the cap is opened, causing the linkage ring to move and block the collection hole, thus preventing liquid from leaking through the collection hole when pouring. After the bottle cap is closed, the linkage ring moves through the bottle cap, opening the collection hole and ensuring that the liquid hanging on the outer wall of the bottle can be successfully recovered.

[0021] 3. Based on the above structure, while opening the bottle cap and connecting it to the bottle mouth, the liquid suction mechanism inside the bottle cap absorbs the liquid at the bottle mouth, especially the liquid droplets adhering to the gaps in the spiral groove. After the bottle cap and bottle mouth are completely closed, the absorbed liquid droplets are discharged to the return sleeve. The liquid droplets flow back into the bottle body through the collection hole, further reducing the phenomenon of dripping at the bottle mouth, ensuring the long-term cleanliness of the bottle body, and avoiding the residue of liquid droplets in the gaps of the spiral groove. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of a blow-molded container with anti-drip and anti-fouling properties and its closed end, according to the present invention.

[0023] Figure 2 This is a schematic diagram of a partial structure of a blow-molded container with anti-drip and anti-fouling properties and its closed end, according to the present invention.

[0024] Figure 3 For the present invention Figure 2 A cross-sectional view of the bottle neck;

[0025] Figure 4 For the present invention Figure 2 Overall structure and enlarged partial schematic diagram of the intermediate reflow assembly;

[0026] Figure 5 For the present invention Figure 4 A schematic diagram of the overall structure of the central linkage ring;

[0027] Figure 6 This is a top view of the initial overlap state of the return ring and the linkage ring in a blow-molded container for preventing dripping and aggregation according to the present invention.

[0028] Figure 7 This is a top view of the state in which the return ring coincides with the linkage ring after rotation in a blow-molded container for preventing dripping and sludge buildup according to the present invention.

[0029] Figure 8 This is a schematic diagram of the bottom structure of the bottle cap at the closed end of a blow-molded container that prevents dripping and spillage, according to the present invention.

[0030] Figure 9 For the present invention Figure 8 Enlarged view of the structure of area A in the middle;

[0031] Figure 10 For the present invention Figure 9 A schematic diagram of the overall structure of the liquid absorption mechanism;

[0032] Figure 11 For the present invention Figure 9 Disassembly diagram of part of the suction tube.

[0033] In the picture:

[0034] 100. Bottle neck; 110. First guide section; 120. Second guide section; 130. Third guide section; 140. Bottle rim; 150. Spiral groove;

[0035] 200. Reflux assembly; 210. Reflux sleeve; 211. Movable groove; 220. Reflux ring; 221. First collection hole; 222. Guide groove; 230. Linkage ring; 231. Second collection hole; 232. Transmission plate; 233. First spring; 234. Transmission bar; 235. Transmission block;

[0036] 300. Bottle cap; 310. Spiral groove; 320. Liquid suction mechanism; 321. Pressure block; 322. Airbag; 323. Pressure plate; 324. Drain tube; 325. Liquid suction tube; 3251. Sealing ring; 3252. Baffle plate; 3253. Fixing ring; 3254. Second spring; 330. Thrust block; 340. Drain hole; 350. Liquid suction hole;

[0037] 400. Bottle body. Detailed Implementation

[0038] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0040] like Figures 1-2As shown, this embodiment discloses a blow-molded container that prevents dripping and sludge buildup, including a bottle mouth 100 and a reflux assembly 200. The bottle mouth 100 is located at the top of the bottle body 400, and liquid in the bottle body 400 is poured out through the bottle mouth 100. The reflux assembly 200 is located at the bottom of the bottle mouth 100 and is the connection end between the bottle mouth 100 and the bottle body 400. The reflux assembly 200 includes a reflux sleeve 210, and the outer surface of the reflux sleeve 210 is set to be inclined towards the direction of the bottle body 400.

[0041] Furthermore, existing blow-molded containers exhibit a dripping phenomenon at the bottle neck when liquids are poured, especially when the container contains viscous liquids. Due to the high surface tension of viscous liquids, pouring is slow, and the liquid easily adheres to the inner and outer walls of the bottle neck, causing dripping. The viscous liquid flows down the bottle, contaminating the bottle and wasting resources. This is particularly problematic when used to hold medical liquids, as it can lead to bottle contamination. When users hold the bottle, the medical liquid dripping from the outer wall will flow down the bottle, contaminating their hands and affecting the hygiene of medical procedures.

[0042] like Figure 3-4 As shown, the bottle opening 100 includes a first guide section 110, a second guide section 120, and a third guide section 130. The first guide section 110, the second guide section 120, and the third guide section 130 are configured as stepped guide slopes with gradually increasing inclination angles. The inclination angle is based on a horizontal plane perpendicular to the bottle axis. Specifically, the inclination angle of the first guide section 110 is 15°-25°, the inclination angle of the second guide section 120 is 25°-35°, and the inclination angle of the third guide section is 35°-45°. The angle difference between adjacent guide sections is 8°-12°, ensuring a stepped reinforcement of the gravity component and avoiding sudden angle changes that could cause liquid turbulence. When pouring liquid, the liquid sequentially passes through the first guide section. The system consists of three sections: section 110, second guide section 120, and third guide section 130. During pouring, the inclined surface of the first guide section 110 allows the viscous liquid to flow into the second guide section 120 under gravity, achieving a smooth flow from the large 400mm space of the bottle body to the small 100mm space at the bottle opening. This prevents stagnation and avoids turbulence caused by excessively rapid pouring. The viscous liquid entering the second guide section 120 receives the liquid from the first guide section 110, and the increased angle enhances the gravitational force, providing continuous acceleration. The even larger inclination angle of the third guide section 130 further accelerates the liquid's outflow. The density of the viscous liquid per unit volume is ρ = 1.2 × 10⁻⁶. 3 kg / m 3 Viscosity μ, gravitational component along the inclined plane: F_g = ρgV sinθ (V is the liquid volume, g = 9.8 m / s) 2θ is the tilt angle), surface tension: F_γ=γL (γ is the surface tension coefficient of the liquid, such as syrup γ=0.07 N / m, L is the contact length between the liquid and the inclined plane), viscous resistance: F_μ=μ·(dv / dy)·S (dv / dy is the velocity gradient, S is the contact area, simplified to F_μ∝μv, v is the liquid velocity), minimum requirement for the smooth flow of liquid: F_g ≥ F_γ+F_μ. For syrup with viscosity μ=100mPa·s, the critical angle θ≥15°. For ointment with viscosity μ=10000 mPa·s, the critical angle θ≥35°. Therefore, the angles of the three guide sections need to cover 15°-45° and increase stepwise to ensure that liquids of different viscosities can meet the critical conditions.

[0043] like Figures 4-5 As shown, the reflux assembly 200 includes a reflux sleeve 210, a reflux ring 220, and a connecting ring 230. The outer surface of the reflux sleeve 210 is inclined towards the bottle body 400. The bottom of the reflux sleeve 210 is provided with the reflux ring 220, and the top outer edge of the reflux ring 220 has a plurality of first collection holes 221. The connecting ring 230 is located at the inner bottom of the reflux ring 220, and the top outer edge of the connecting ring 230 has second collection holes 231 corresponding to the first collection holes 221. When liquid... When the liquid flows onto the outside of the bottle opening 100, the droplets gradually slide down the bottle opening 100 to the return assembly 200 due to gravity, and then slide down the inclined surface of the return sleeve 210 into the guide groove 222. The guide groove 222 is designed with a slope that is higher in the middle and lower at both ends. The droplets slide down the slope into the first collection hole 221, and then enter the inner cavity of the bottle body 400 through the second collection hole 231. This prevents the viscous liquid from sliding further down the outside of the bottle body 400, keeps the bottle body 400 clean, and recovers liquid resources to avoid waste.

[0044] like Figure 5 As shown, the top of the linkage ring 230 is provided with multiple transmission plates 232, and the top of the transmission plates 232 is provided with transmission bars 234. The transmission plates 232 and transmission bars 234 are disposed in the inner cavity of the return sleeve 210, and a certain amount of movable space is provided in the inner cavity of the return sleeve 210. The top of the transmission bars 234 is also provided with a transmission block 235, and the transmission block 235 protrudes from the top of the return sleeve 210. The top of the return sleeve 210 is provided with a movable groove 211 for the transmission block 235 to move. By rotating the transmission block 235, it moves in the inner cavity of the movable groove 211, driving the linkage ring 230 to rotate, realizing the overlap or misalignment of the second collection hole 231 and the first collection hole 221. This causes the transmission bars 234 to drive the transmission plates 232 to move along the inner cavity of the return sleeve 210, driving the linkage ring 230 to rotate, causing the position of the second collection hole 231 to change. Figure 6As shown, before the position of the second collection hole 231 changes, it does not coincide with the first collection hole 221. The liquid is blocked by the linkage ring 230 and cannot pass through the first collection hole 221. Figure 7 As shown, when the position of the second collection hole 231 changes, the first collection hole 221 and the linkage ring 230 completely overlap. After the liquid enters the first collection hole 221, it can enter the bottle 400 through the second collection hole 231. When pouring the liquid, by closing the channel of the first collection hole 221, the liquid in the bottle 400 can be prevented from flowing out through the first collection hole 221.

[0045] like Figure 3 As shown, the bottle mouth 100 also includes a bottle rim 140 and a spiral groove 150. The bottle rim 140 is located on the outside of the third guide section 130, and the spiral groove 150 is located on the outside of the first guide section 110.

[0046] like Figure 8 As shown, this embodiment discloses a closed end of an anti-drip and anti-slip blow-molded container, including a bottle cap 300, a spiral 310, and a liquid suction mechanism 320. The bottle cap 300 is disposed on the top of the bottle mouth 100 and is used to close the liquid outflow channel of the blow-molded container. The spiral 310 is disposed in the inner wall of the bottle cap 300. By cooperating with the spiral groove 150, rotating the bottle cap 300 can open or close the liquid outflow channel of the blow-molded container. The liquid suction mechanism 320 is disposed in the inner cavity of the bottle cap 300 and is located below the spiral 310.

[0047] like Figures 8-10As shown, the liquid suction mechanism 320 includes a pressure block 321, an air bladder 322, a pressure plate 323, a drain pipe 324, and a suction pipe 325. One side of the pressure block 321 protrudes into the inner wall of the bottle cap 300. The pressure plate 323 is located on the other side of the pressure block 321. The air bladder 322 is located on one side of the pressure plate 323. The suction pipe 325 is located at the top of the air bladder 322 and communicates with the inner cavity of the air bladder 322. The drain pipe 324 is located at the bottom of the air bladder 322 and communicates with its inner cavity. The bottle cap 300 closes the blow-molded container. When the liquid flows out of the container, the bottle cap 300 needs to be aligned with the bottle mouth 100. By rotating the bottle cap 300, it gradually moves downwards. Simultaneously, the pressure block 321 contacts the bottle rim 140, which presses against the pressure block 321, causing it to move backwards. This backward movement of the pressure block 321 pushes the pressure plate 323, compressing the air bladder 322 and causing it to deform. The gas inside the air bladder is then discharged through the drain pipe 324 and continues to move downwards with the bottle cap 300. The pressure block 321 is no longer in contact with the bottle rim 140. The air bladder 322 gradually returns to its original shape due to its elasticity, creating negative pressure within its cavity. A suction hole 350 is located on the inner wall of the bottle cap 300 below the spiral groove 310, and one end of the suction tube 325 is positioned within the suction hole 350. When negative pressure is generated within the air bladder 322, the suction tube 325 generates suction. As the bottle cap 300 continuously rotates and moves downwards, when the suction hole 350 passes the outside of the bottle mouth 100, the liquid hanging on the bottle mouth 100 is sucked in through the suction tube 325. The liquid droplets on the outside of the bottle cap 300, especially the viscous liquid droplets attached to the spiral groove 150, are difficult to slide down due to gravity in the gap of the thread. They are sucked into the inner cavity of the air bag 322 by the suction of the suction tube 325. The bottom of the bottle cap 300 is provided with a drain hole 340 and a drain tube 324 is provided in the drain hole 340. After the liquid droplets are sucked into the air bag 322, they are discharged through the drain tube 324 and the drain hole 340 under the action of gravity, discharging the liquid droplets onto the surface of the return sleeve 210. The liquid droplets flow back into the bottle body 400 through the first collection hole 221.

[0048] like Figure 4 , Figure 8 As shown, the bottom of the bottle cap 300 is provided with multiple thrust blocks 330. When the bottle cap 300 rotates and moves downward, the bottom of the bottle cap 300 gradually approaches the top of the return sleeve 210 until the thrust blocks 330 contact the transmission block 235 during rotation. The thrust of the rotating thrust blocks 330 causes the transmission block 235 to move in the movable groove 211. After the linkage ring 230 rotates, the second collection hole 231 coincides with the first collection hole 221, and the first collection hole 221 is no longer blocked. At this time, liquid droplets can slide down through the return sleeve 210 and enter the inner cavity of the bottle body 400 through the first collection hole 221 and the second collection hole 231. When pouring liquid, the bottle cap 300 is rotated in the opposite direction to remove it from the bottle mouth 100, as shown in the figure. Figure 5As shown, since a first spring 233 is provided on one side of the transmission plate 232, the transmission plate 232 returns to its original position under the elastic force of the first spring 233, thereby causing the linkage ring 230 to return to its original position. The position of the second collection hole 231 changes again, and it no longer coincides with the first collection hole 221, so that when the liquid is poured, the liquid in the bottle 400 will not be discharged through the first collection hole 221, thus avoiding liquid leakage.

[0049] like Figure 11 As shown, a sealing ring 3251 is provided at one end of the inner wall of the suction tube 325, and a flow-blocking plate 3252 is provided at one end of the inner wall of the sealing ring 3251. A fixing ring 3253 is fixedly installed at the other end of the inner wall of the sealing ring 3251. The fixing ring 3253 is connected to the flow-blocking plate 3252 through a second spring 3254. When the airbag 322 is compressed and positive pressure is generated inside, the flow-blocking plate 3252 is always in the inner wall of the sealing ring 3251, and the gas cannot be discharged through the suction tube 325. The gas can only be discharged through the drain tube 325. 4. When the airbag 322 returns to its original state and generates negative pressure, the baffle plate 3252 moves forward and disengages from the sealing ring 3251 under the action of negative pressure, entering the inner cavity of the suction tube 325. Since the inner diameter of the suction tube 325 is larger than the diameter of the baffle plate 3252, under the action of negative pressure, liquid droplets can pass through the gap between the baffle plate 3252 and the suction tube 325 and be sucked into the inner cavity of the airbag 322. This avoids the airflow blowing away the liquid droplets attached to the outer edge of the bottle mouth 100 when the airbag 322 generates positive pressure, making cleaning more difficult.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The present invention is not limited to the above embodiments; the embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A blow-molded container that prevents dripping, sag, and aggregation, characterized in that: include The bottle opening (100) is configured as a channel for liquid pouring and is located at the top of the bottle body (400). The bottle opening (100) includes a first guide section (110), a second guide section (120), and a third guide section (130). All three guide sections are stepped guide slopes with increasing inclination angles. When the liquid is poured, it passes through the first guide section (110), the second guide section (120), and the third guide section (130) in sequence to break the surface tension of the liquid and achieve stable and accelerated liquid discharge. A reflux assembly (200) is disposed at the bottom of the bottle mouth (100). The reflux assembly (200) includes a reflux sleeve (210), a reflux ring (220), and a linkage ring (230). The reflux sleeve (210) is disposed above the reflux ring (220). The reflux sleeve (210) is a slope with a gradually changing inclination angle to guide the liquid flow. The linkage ring (230) is connected to the bottom of the reflux sleeve (210) and disposed inside the reflux ring (220). A first collection hole (221) is provided on the top outer edge of the reflux ring (220), and a second collection hole (231) is provided on the top outer edge of the linkage ring (230). Liquid can enter the bottle body (400) through the slope of the reflux sleeve (210) and through the first collection hole (221) and the second collection hole (231).

2. The blow-molded container for preventing dripping, dripping, and aggregation according to claim 1, characterized in that: The top of the linkage ring (230) is provided with multiple transmission plates (232), and the top of the transmission plates (232) is connected to a transmission bar (234). The transmission plates (232) and the transmission bars (234) are located in the inner cavity of the return sleeve (210), and the inner cavity of the return sleeve (210) has reserved space for movement. The top of the transmission bar (234) is provided with a transmission block (235). By controlling the rotation of the transmission block (235), the position of the second collection hole (231) changes.

3. A blow-molded container with anti-drip, anti-sagging, and anti-polymerization properties according to claim 2, characterized in that: A first spring (233) is provided on one side of the transmission plate (232) to provide elastic force to the transmission plate (232) so that the position of the linkage ring (230) is fixed.

4. A blow-molded container for preventing dripping, dripping, and aggregation according to claim 1, characterized in that: The bottle mouth (100) also includes a bottle edge (140) and a spiral groove (150). The bottle edge (140) is located on the outside of the third guide section (130), and the spiral groove (150) is located on the outside of the first guide section (110).

5. A blow-molded container for preventing dripping, dripping, and aggregation according to claim 1, characterized in that: The top outer edge of the return ring (220) is also provided with a number of guide grooves (222). Each guide groove (222) is located between two adjacent first collection holes (221), and the guide groove (222) is set as an inclined surface with a high middle and low ends. After the liquid enters the guide groove (222), it will be guided to the first collection hole (221) through the inclined surface.

6. A closed end of a blow-molded container designed to prevent dripping and spillage, characterized in that: Applied to a blow-molded container for preventing dripping, sag, and polymerization as described in any one of claims 1-5, comprising: A bottle cap (300) is provided on the top of the bottle mouth (100). The inner wall of the bottle cap (300) is provided with a spiral pattern (310) that matches the spiral groove (150). By rotating the bottle cap (300), the bottle cap (300) can be closed on the top of the bottle mouth (100). A push block (330) is provided at the bottom of the bottle cap (300). When the bottle cap (300) is closed on the top of the bottle mouth (100), the push block (330) and the transmission block (235) work together to drive the linkage ring (230) to rotate. A liquid suction mechanism (320) is disposed in the inner cavity of the bottle cap (300). The liquid suction mechanism (320) includes a pressure block (321), an air bladder (322), a pressure plate (323), and a liquid suction tube (325). One side of the pressure block (321) protrudes from the inner wall of the bottle cap (300). A pressure plate (323) is disposed on one side of the pressure block (321). An air bladder (322) is disposed on one side of the pressure plate (323). A liquid suction tube (325) is disposed on the top of the air bladder (322). When the bottle cap (300) is closed on the top of the bottle mouth (100), the liquid suction tube (325) generates suction.

7. The closed end of the anti-drip foam blow-molded container according to claim 6, characterized in that: The inner wall of the bottle cap (300) is provided with a liquid suction hole (350) below the spiral pattern (310), and one end of the liquid suction tube (325) is provided in the liquid suction hole (350).

8. The closed end of the anti-drip foam blow-molded container according to claim 6, characterized in that: A sealing ring (3251) is provided at one end of the inner wall of the suction tube (325), and a flow-blocking plate (3252) is provided at one end of the inner wall of the sealing ring (3251). A second spring (3254) is connected to one side of the flow-blocking plate (3252), and a fixing ring (3253) is connected to one end of the second spring (3254).

9. The closed end of the anti-drip foam blow-molded container according to claim 8, characterized in that: The flow baffle (3252) is fitted with the sealing ring (3251) in a transitional manner, and the diameter of the flow baffle (3252) is smaller than the inner diameter of the suction tube (325).

10. The closed end of the anti-drip foam blow-molded container according to claim 6, characterized in that: The bottom of the airbag (322) is provided with a drain pipe (324), the bottom of the bottle cap (300) is provided with a drain hole (340), the suction pipe (325) is provided in the inner wall of the drain hole (340), and the drain hole (340) corresponds to the outer surface of the return sleeve (210).

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