Drip bottle having dual protection functions of bacterial resistance and oxygen resistance

Abstract

Disclosed in the present invention is a drip bottle having dual protection functions of bacterial resistance and oxygen resistance, comprising: a bottle body, wherein a composite film bag is arranged in the bottle body, the bottle body is provided with an air exchange hole, a pump body is arranged on the bottle body, an actuator is movably arranged on the pump body, a drip column is arranged on the actuator, a first spring is arranged in the pump body, the actuator abuts against the first spring, a pump core is arranged in the actuator, a one-way valve shaft is inserted into the pump core, a first annular groove is reserved between the one-way valve shaft and the pump core, a one-way valve plate is arranged on the one-way valve shaft, a pressure-limiting deformation gap is reserved between the one-way valve plate and the one-way valve shaft, a second spring is arranged in the one-way valve shaft, the second spring abuts against the one-way valve plate, and the one-way valve plate blocks a liquid outlet hole. The present invention can achieve good oxygen resistance and bacterial resistance during dripping. Moreover, only a fixed amount of medicine liquid can be extruded regardless of the magnitude of the force applied to the actuator, such that the medicine liquid drips in the form of droplets without jetting.

Description

Dropping bottle with dual protection against bacteria and oxygen Technical Field

[0001] This invention relates to the field of pharmaceutical packaging, and more particularly to a dropper bottle with dual protection functions of bacterial and oxygen barrier. Background Technology

[0002] Currently, commercially available eye drop bottles require external air to be drawn in and refluxed back into the bottle after the drops are dispensed to allow it to expand and return to its original position. However, the microorganisms in the air can easily contaminate the medication inside the bottle. The conventional solution is to add preservatives during use or storage to reduce microbial growth and product contamination. However, preservatives may cause side effects such as conjunctival irritation. Another solution is to install a sterilizing filter membrane in the reflux channel, purifying the refluxed air by passing it through the sterilization function. However, the oxygen in the refluxed air can react with the active ingredients in oxygen-sensitive drugs, leading to a decrease in the effective ingredients and an increase in harmful components such as impurities and related substances, thus failing to provide the safest protection for the medication. Currently, most eye drop bottles on the market require pressing the bottle to squeeze out the liquid. Due to individual differences, the pressure applied by each person is different. People with less strength can apply less force to the bottle, allowing the liquid to drip from the dropper in the form of droplets, while people with more strength are more likely to apply greater pressure to the bottle, causing the liquid to spray out of the dropper. Summary of the Invention

[0003] The purpose of this invention is to provide a dropper bottle with dual protection functions of antibacterial and oxygen-blocking, which can prevent external air from flowing back and coming into contact with the liquid medicine, and can make the liquid medicine drip in the form of droplets no matter how much pressure is applied.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a drip bottle with dual protection functions of antibacterial and oxygen-blocking, comprising: a bottle body; a composite film bag integrally formed within the bottle body, the composite film bag abutting against the bottle body; a venting hole provided on the bottle body; a pump body fixedly and sealed at the bottle mouth of the bottle body; a bottom-sealed manifold integrally formed within the pump body; a communicating inlet hole and an inner wall groove provided on the side wall of the manifold; an actuator movably and sealed on the pump body; a drip column integrally formed on the actuator; a coaxial guide hole and an outlet hole provided on the drip column; a first spring fitted onto the manifold; the pump body and the actuator respectively abutting against the upper and lower ends of the first spring; a pump core secured within the actuator; the pump core movably disposed within the pump body and slidingly abutting against the inner side wall of the manifold; and the first spring being unaffected by external forces. During pressure testing, the pump core does not completely seal the inner wall groove. A one-way valve shaft is inserted into the pump core, and a flow guide channel is left between the pump core and the one-way valve shaft. The mounting part on the one-way valve shaft extends out of the pump core and leaves a first annular groove between it and the pump core. The mounting part fits against the inner side wall of the actuator. A first flow guide groove connected to the first annular groove is left between the mounting part and the actuator. An elastic one-way valve plate is fixedly and sealed on the mounting part. A pressure-limiting deformation gap is left between the one-way valve plate and the mounting part. A second spring is installed in the one-way valve shaft. The second spring abuts against the one-way valve plate. The one-way valve plate abuts against the inner top wall of the actuator. A communication channel is left between the one-way valve plate and the actuator. The one-way valve plate extends into the flow guide hole and seals the liquid outlet hole under the elastic force of the second spring. A second flow guide groove is left between the one-way valve plate and the flow guide hole.

[0005] Furthermore, in the aforementioned drip bottle with dual antibacterial and anti-oxygen protection functions, a transition section, an inlet section, and a collection section are arranged coaxially from top to bottom in the collection tube. The orifices of the transition section, inlet section, and collection section decrease sequentially. An inverted conical connecting section is provided between the transition section, inlet section, and collection section. The inlet hole is located on the inlet section, and the inner wall groove is located on the collection section and extends to the connecting section between the inlet section and the collection section. The pump core is sealed and slidingly fitted with the transition section and the collection section. When the outlet hole is blocked, the pump core does not completely block the inner wall groove. Several supporting ribs connected to the inner sidewall of the pump body are evenly distributed on the outer sidewall of the collection tube. The first spring is fitted on the transition section of the collection tube and abuts against the supporting ribs.

[0006] Furthermore, in the aforementioned drip bottle with dual antibacterial and anti-oxygen protection functions, an annular sealing gasket is provided between the bottle mouth and the pump body. An outer limiting protrusion is provided on the outer wall of the pump body, and an inner limiting protrusion is provided on the inner wall of the actuator. The outer limiting protrusion is located above the inner limiting protrusion. The inner wall of the actuator slides against the outer wall of the pump body. Under the elastic force of the first spring, the inner limiting protrusion abuts against the outer limiting protrusion. From the outside to the inside, the drip column has a mating hole and a mounting hole coaxial with the outlet hole and the guide hole, respectively. The flow path of the manifold... The transition section is slidably fitted in the mating hole. The outer wall of the transition section is sealed and fitted with the inner wall of the mating hole. Several anti-friction grooves are evenly distributed around the outer wall of the transition section. The lower end wall of the mating hole abuts against the first spring. The guide hole connects the liquid outlet and the mounting hole. A tapered connecting hole is provided between the guide hole and the mounting hole. The second guide groove is evenly distributed around the inner wall of the guide hole and extends to the tapered connecting hole. A sealing ring is provided at the bottom of the liquid outlet and extends downward. The bottom wall of the sealing ring extends downward beyond the top wall of the second guide groove. A one-way valve plate is sealed on the sealing ring.

[0007] Furthermore, in the aforementioned drip bottle with dual antibacterial and anti-oxygen protection functions, a T-shaped connection hole is provided in the pump core, and a one-way valve shaft is inserted into the T-shaped connection hole and sealed against the inner wall of the T-shaped connection hole. An outer skirt tube is integrally formed on the pump core, and the outer skirt tube is slidably locked in the transition section of the pump body. The outer side wall of the outer skirt tube is sealed against the inner side wall of the transition section. An outer S-shaped limiting ring groove is provided on the outer side wall of the pump core located above the outer skirt tube, and an inner S-shaped limiting ring groove is provided on the inner side wall of the actuator mounting hole. The pump core is locked in the mounting hole, and the outer side wall of the pump core is sealed against the inner side wall of the mounting hole. The outer S-shaped limiting ring groove on the pump core is located above the inner S-shaped limiting groove in the actuator and engages with the inner S-shaped limiting ring groove.

[0008] Furthermore, in the aforementioned drip bottle with dual antibacterial and anti-oxygen protection functions, the one-way valve shaft is T-shaped. The small-diameter section of the one-way valve shaft is fitted into the small-diameter hole of the T-shaped connecting hole of the pump core, and the large-diameter section of the one-way valve shaft is fitted into the large-diameter hole of the T-shaped connecting hole of the pump core. The mounting part is integrally formed on the large-diameter section of the one-way valve shaft. A spring hole is provided between the large-diameter section of the one-way valve shaft and the mounting part, and a second spring is disposed in the spring hole. The height of the second spring extending out of the spring hole is... It is the spacing of the pressure-limiting deformation gap. Several third guide grooves are evenly distributed around the circumference on the outer wall of the small diameter section of the one-way valve shaft. Several pads are evenly distributed around the circumference on the bottom wall of the large diameter section of the one-way valve shaft. Several fourth guide grooves are evenly distributed around the circumference in the large diameter hole of the pump core. The fourth guide grooves are connected to the first annular groove. The slot between each two adjacent pads is connected to the third guide groove and the fourth guide groove. The third guide groove, the slot, and the fourth annular groove are connected to form a guide channel between the pump core and the one-way valve shaft.

[0009] Furthermore, in the aforementioned drip bottle with dual antibacterial and anti-oxygen protection functions, a retaining ring is integrally formed on the outer ring of the one-way valve plate. Several spacer grooves are evenly distributed around the circumference of the retaining ring. A V-shaped ring extends downward from the retaining ring. A V-shaped groove is provided on the top wall of the mounting portion of the one-way valve shaft. The outer wall of the V-shaped groove is higher than the inner wall, and the inner wall is flush with the wall of the spring hole. The V-shaped ring is engaged in the V-shaped groove, the bottom wall of the retaining ring abuts against the outer wall of the V-shaped groove, and the one-way valve plate abuts against the second spring. The top wall of the retaining ring abuts against the inner top wall of the actuator's mounting hole. The outer diameter of the retaining ring of the one-way valve plate is smaller than the diameter of the actuator's mounting hole. A third annular groove is left between the retaining ring and the mounting hole. The third annular groove is connected to the spacer groove to form a connecting channel. A ejector pin is integrally formed on the one-way valve plate. A weight reduction hole is provided in the ejector pin. The lower section of the ejector pin extends downward into the second spring. The upper section of the ejector pin is movably sealed in the guide hole. The ejector pin seals the sealing ring of the liquid outlet hole. A baffle is integrally formed on the upper end wall of the ejector pin. The baffle extends into the liquid outlet hole.

[0010] Furthermore, in the aforementioned drip bottle with dual antibacterial and anti-oxygen protection functions, the open end of the composite film bag is bonded to the bottle mouth of the bottle body. The composite film bag includes a barrier layer and a functional layer. The functional layer is located inside the barrier layer and adheres to the barrier layer. The functional layer is adhered to the inner wall of the bottle body. The barrier layer is a film made of COC or COP material, and the functional layer is a film made of PP or PE material.

[0011] Furthermore, in the aforementioned drip bottle with dual protection functions of inhibiting bacteria and oxygen, a pressing handle extends outward from the actuator, and the pressing handle is provided with anti-slip texture. The top surface of the pressing handle is tilted downward at 25-35°.

[0012] Furthermore, in the aforementioned drip bottle with dual protection functions of inhibiting bacteria and oxygen, the vent is located near the bottle opening, and the pump body is positioned outside the vent without affecting the ventilation of the vent.

[0013] Furthermore, in the aforementioned drip bottle with dual protection functions of inhibiting bacteria and oxygen, a bottle cap is sealed on the drip column of the actuator, a positioning post extending downward on the inner top wall of the bottle cap that can extend into the liquid outlet, several positioning ribs are evenly distributed around the inner side wall of the bottle cap, the positioning ribs abut against the outer side wall of the drip column, and a pressure relief hole is provided on the bottle cap.

[0014] The advantages of this invention are as follows: When the liquid medicine drips from the outlet, the one-way valve simultaneously blocks the outlet, preventing external air from flowing back into the composite membrane bag. This prevents external air from contacting the liquid medicine in the composite membrane bag, thus preventing contamination by airborne bacteria and oxygen, achieving a good oxygen and bacteria barrier effect. When the amount of liquid medicine in the composite membrane bag decreases, the bag cannot expand back to its original size, creating a negative pressure between the bag and the bottle. At this time, external air will fill the space between the bag and the bottle through the ventilation holes on the bottle. The air pressure between the bag and the bottle is then equal to the external pressure. The air pressure in the environment is kept consistent, which allows the medicine in the composite membrane bag to drip out smoothly without affecting the aesthetics of the entire drip bottle. A pressure-limiting deformation gap is left between the mounting part of the one-way valve plate and the one-way valve shaft, so that the elastic potential energy generated by the second spring and the one-way valve plate when squeezed is relatively small. No matter how much force is used to press the actuator, only a certain amount of medicine can be squeezed out. Furthermore, the one-way valve plate and the second spring generate less elastic potential energy, and the pushing force generated by the one-way valve plate when pushing out the medicine in the liquid outlet is small, so that the medicine in the liquid outlet can drip out in the form of droplets, rather than being sprayed out. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural diagram of the dropper bottle with dual protection functions of antibacterial and oxygen barrier according to the present invention.

[0016] Figure 2 is a schematic diagram of the cross-sectional structure in Figure 1.

[0017] Figure 3 is a schematic diagram of the structure in Figure 2 after removing the bottle body, composite film bag and bottle cap.

[0018] Figure 4 is a schematic diagram of the pump body in Figure 3.

[0019] Figure 5 is a schematic diagram of the actuator in Figure 3.

[0020] Figure 6 is a schematic diagram of the pump core in Figure 3.

[0021] Figure 7 is a schematic diagram of the one-way valve shaft in Figure 3.

[0022] Figure 8 is a schematic diagram of the one-way valve plate in Figure 3.

[0023] Figure 9 is a schematic diagram of the bottle cap structure in Figure 1. Detailed Implementation

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0025] As shown in Figures 1 to 9, the drip bottle with dual antibacterial and anti-oxygen protection functions of the present invention includes: a bottle body 1, a composite film bag 2 integrally formed in the bottle body 1, the open end of the composite film bag 2 being bonded to the bottle mouth of the bottle body 1, and the composite film bag 2 abutting against the inner wall of the bottle body 1. The composite film bag 2 includes: a barrier layer 21 and a functional layer 22, the functional layer 22 being located inside and abutting against the barrier layer 21, and the functional layer 21 abutting against the inner wall of the bottle body 1. The barrier layer 21 is a film made of COC or COP material, and the functional layer 22 is a film made of PP or PE material. A vent 11 is provided on the bottle body 1, located near the bottle mouth. A pump body 3 is fixedly sealed on the upper part of the pump body 3. The pump body 3 is positioned outside the vent 11 without affecting the ventilation of the vent 11. The vent 11 is blocked by the pump body 3, which improves the overall aesthetics. An annular sealing gasket 12 is provided between the bottle mouth and the pump body 3. A bottom-sealed liquid collection pipe 31 is integrally formed in the pump body 3. An inlet hole 32 is provided on the side wall of the liquid collection pipe 31. An inner wall groove 33 communicating with the inlet hole 32 is provided on the inner side wall of the liquid collection pipe 31. An actuator 4 is movably sealed on the pump body 3. A drip column 41 is integrally formed on the actuator 4. A coaxial guide hole 42 and an outlet hole 43 are provided in the drip column 41. A bottle cap 9 is sealed and covered on the drip column 41 of the actuator 4. The inner top wall of the bottle cap 9 extends downwards. A positioning post 91 is provided that can extend into the liquid outlet 43. Several positioning ribs 92 are evenly distributed around the inner wall of the bottle cap 9. The positioning ribs 92 abut against the outer wall of the drip column 41. A pressure relief hole 93 is provided on the bottle cap 9. When the bottle cap 9 is sealed on the drip column 41, the air between the bottle cap 9 and the drip column 41 is discharged outward through the pressure relief hole 93, so that the bottle cap 9 can form a good sealing connection with the drip column 41. A first spring 34 is fitted on the liquid collection tube 31. The pump body 3 and the actuator 4 abut against the upper and lower ends of the first spring 34, respectively. A pump core 5 is provided in the actuator 4. The pump core 5 is movably installed in the pump body 3 and slides against the inner wall of the liquid collection tube 31. When the first spring 34 is not compressed, the pump core 5 is not completely closed. The inner wall groove 33 is sealed, the pump core 5 is snapped into the actuator 4, a one-way valve shaft 6 is inserted into the pump core 5, a flow guide channel 7 is left between the pump core 5 and the one-way valve shaft 6, the mounting part 61 on the one-way valve shaft 6 extends out of the pump core 5 and leaves a first annular groove 611 between the mounting part 61 and the actuator 4, the mounting part 61 fits against the inner side wall of the actuator 4, a first flow guide groove 612 is left between the mounting part 61 and the actuator 4 and communicates with the first annular groove 611, an elastic one-way valve plate 8 is fixedly and sealed on the mounting part 61, a pressure-limiting deformation gap 81 is left between the one-way valve plate 8 and the mounting part 61, a second spring 62 is provided in the one-way valve shaft 6, the second spring 62 abuts against the one-way valve plate 8, the one-way valve plate 8 abuts against the inner top wall of the actuator 4.A connecting channel 82, which communicates with the first guide groove 612 and the guide hole 42, is provided between the one-way valve plate 8 and the actuator 4. The one-way valve plate 8 extends into the guide hole 42 and, under the elastic force of the second spring 62, blocks the liquid outlet hole 43. A second guide groove 83 is provided between the one-way valve plate 8 and the guide hole 42.

[0026] Upon first use, remove the bottle cap 9, invert the dropper bottle, and press the actuator 4. The actuator 4 drives the one-way valve plate 8, one-way valve shaft 6, and pump core 5 to overcome the elastic force of the first spring 34 and move towards the bottle body 1. During the movement, the pump core 5 completely blocks the inner wall groove 33 on the manifold 31. As the movement continues, the gas between the pump core 5 and the manifold 31 is compressed. The compressed gas then sequentially enters the guide channel 7 between the pump core 5 and the one-way valve shaft 6, the first annular groove 611 between the mounting part 61 and the pump core 5, and the first guide groove 61 between the mounting part 61 and the actuator. In the communication channel 82 between the one-way valve plate 8 and the actuator 4, and the one-way valve plate 8, the gas finally converges in the second guide groove 83 between the guide holes 42. When the gas pressure in the second guide groove 83 is large enough, the gas squeezes the elastic one-way valve plate 8, causing the one-way valve plate 8 to overcome the elastic force of the second spring 62 and open the liquid outlet 43 downward. The gas is discharged from the liquid outlet 43. After the gas in the second guide groove 83 is discharged, the one-way valve plate 8 re-seals the liquid outlet 43 under the elastic force of the second spring 62, and the external air cannot flow back into the composite membrane bag 2 through the liquid outlet 43. At this time, since the gas is discharged and the liquid outlet 43 is blocked, a negative pressure is formed in the guide channel 7, the first annular groove 611, the first guide groove 612, the connecting channel 82 and the second guide groove 83. The actuator 4 is released, and under the elastic force of the first spring 34, the actuator 4 drives the one-way valve plate 8, the one-way valve shaft 6 and the pump core 5 to move away from the bottle body 1. The pump core 5 opens the inner wall groove 33. Under the action of negative pressure, the medicine in the composite membrane bag 2 will be sucked into the liquid collection pipe 31 through the liquid inlet 32 ​​and the inner wall groove 33. Then, under the action of negative pressure, it will fill the guide channel 7, the first annular groove 611, the first guide groove 612, the connecting channel 82 and the second guide groove 83. When the amount of medicine in the composite film bag 2 decreases, the composite film bag 2 cannot expand back, and a negative pressure will appear between the composite film bag 2 and the bottle body 1. At this time, external air will fill the space between the composite film bag 2 and the bottle body 1 through the ventilation hole 11 on the bottle body 1, and the air pressure value between the composite film bag 2 and the bottle body 1 will be consistent with the air pressure value of the external environment.

[0027] When the actuator 4 is pressed again, the pump core 5 will squeeze the liquid in the manifold 31, causing it to be discharged from the outlet 43. When the liquid in the second guide groove 83 squeezes the one-way valve plate 8, the deformation of the one-way valve plate 8 and the second spring 62 is limited because there is a pressure-limiting deformation gap 81 between the one-way valve plate 8 and the mounting part 61. After the deformation of the one-way valve plate 8 is limited, the opening of the outlet 43 is limited, so that a certain amount of liquid is collected on the one-way valve plate 8. Under its own tension, the liquid will remain in the outlet 43. When the liquid in the second guide groove 83 enters the outlet 43... After step 3, the pressure exerted by the liquid in the second guide channel 83 on the one-way valve plate 8 decreases. Under the elastic force of the second spring 62, the one-way valve plate 8 re-seals the outlet hole 43. During the sealing process, it pushes the liquid in the outlet hole 43, causing it to be ejected. Since the deformation of the second spring 62 and the one-way valve plate 8 is limited, the elastic potential energy generated by the second spring 62 and the one-way valve plate 8 when squeezed is relatively small, resulting in a small pushing force on the liquid in the outlet hole 43. This allows the liquid in the outlet hole 43 to drip out in the form of droplets rather than spraying out. When the liquid drips, the one-way valve plate 8 simultaneously seals the outlet hole 43, preventing external air from flowing back into the composite membrane bag 2, thus achieving a good oxygen and bacteria barrier effect.

[0028] In this embodiment, a coaxially connected transition section 311, inlet section 312, and collection section 313 are sequentially arranged from top to bottom in the manifold 31. The orifice diameters of the transition section 311, inlet section 312, and collection section 313 decrease sequentially. An inverted conical connecting section 314 is provided between each of the transition section 311, inlet section 312, and collection section 313. An inlet hole 32 is provided on the inlet section 312, and two inlet holes 32 are symmetrically arranged on the inlet section 312 to improve the inlet rate. An inner wall groove 33 is provided on the collection section 313 and extends to the connecting section 314 between the inlet section 312 and the collection section 313. Two inner wall grooves 33 are symmetrically arranged on the collection section 313, and the two inner wall grooves 33 are respectively connected to two inlet holes. The holes 32 are aligned vertically, and the pump core 5 and the liquid collection section 313 are sealed and slidably fitted. Since the inner diameters of the transition section 311 and the inlet section 312 are larger than the inner diameter of the liquid collection section 313, there are gaps between the pump core 5 and the transition section 311, the inlet section 312 and the two connecting sections 314. When the liquid enters the inlet section 312 from the inlet hole 32, the liquid will gather in the connecting section 314 between the inlet section 312 and the liquid collection section 313. When the pump core 5 completely blocks the two inner wall grooves 33 on the liquid collection section 313, the liquid remains in the connecting section 314. When the pump core 5 does not completely block the two inner wall grooves 33 on the liquid collection section 313, the liquid will flow into the liquid collection section 313 through the two inner wall grooves 33.

[0029] An outer skirt tube 51 is integrally formed on the pump core 5. The outer skirt tube 51 is slidably engaged in the transition section 311 of the liquid collection tube 31. The outer side wall of the outer skirt tube 51 is sealed and fitted with the inner side wall of the transition section 311. The sliding cooperation between the pump core 5 and the outer skirt tube 51 on the pump core 5 and the liquid collection section 313 and the transition section 311 of the liquid collection tube 31 respectively can improve the sliding stability of the pump core 5 in the pump body 3. A T-shaped connecting hole 52 is provided in the pump core 5. The one-way valve shaft 6 is inserted into the T-shaped connecting hole 52 and is sealed and fitted with the inner side wall of the T-shaped connecting hole 52 to form a flow guide channel 7. The liquid in the liquid collection section 313 can enter the flow guide channel 7 between the one-way valve shaft 6 and the pump core 5 through the T-shaped connecting hole 52 for flow.

[0030] The one-way valve shaft 6 is T-shaped. The small-diameter section of the one-way valve shaft 6 is fitted into the small-diameter hole of the T-shaped connecting hole 52 of the pump core 5, and the large-diameter section of the one-way valve shaft 6 is fitted into the large-diameter hole of the T-shaped connecting hole 52 of the pump core 5. The mounting part 61 is integrally formed on the large-diameter section of the one-way valve shaft 6 and forms a first annular groove 611 with the pump core 5. Several third guide grooves 63 are evenly distributed around the outer wall of the small-diameter section of the one-way valve shaft 6. Several pads 64 are evenly distributed around the bottom wall of the large-diameter section of the one-way valve shaft 6. Several fourth guide grooves 53 are evenly distributed around the large-diameter hole of the pump core 5. The fourth guide grooves 53 are connected to the first annular groove 611. The slot 65 between each two adjacent pads 64 is connected to the third guide groove 63 and the fourth guide groove 53. The third guide groove 63, the slot 65 and the fourth annular groove 53 are connected to form a guide channel 7 between the pump core 5 and the one-way valve shaft 6. A spring hole 66 is provided between the large diameter section of the one-way valve shaft 6 and the mounting part 61. A second spring 62 is provided in the spring hole 66. The height of the second spring 62 extending out of the spring hole 66 is the spacing of the pressure limiting deformation gap 81. The one-way valve plate 8 is fixedly and sealed on the mounting part 61 of the one-way valve shaft 6 and abuts against the second spring 62.

[0031] A retaining ring platform 84 is integrally formed on the outer ring of the one-way valve plate 8. A V-shaped ring platform 842 extends downward from the retaining ring platform 84. A V-shaped ring groove 613 is provided on the top wall of the mounting part 61 of the one-way valve shaft 6. The outer ring wall of the V-shaped ring groove 613 is higher than the inner ring wall of the V-shaped ring groove 613. The inner ring wall of the V-shaped ring groove 613 is flush with the hole wall of the spring hole 66. The V-shaped ring platform 842 is engaged in the V-shaped ring groove 613. The bottom wall of the retaining ring platform 84 abuts against the outer ring wall of the V-shaped ring groove 613. The retaining ring platform 84 can improve the load-bearing capacity of the one-way valve plate 8. The one-way valve plate 8 abuts against the second spring 62. A ejector pin 85 is integrally formed on the one-way valve plate 8. A weight-reducing hole 851 is provided in the ejector pin 85. The lower section of the ejector pin 85 extends downward into the second spring 62 to support the second spring. Spring 62 is used for limiting, so that the second spring 62 can be stably deformed after being compressed. The weight reduction hole 851 in the ejector pin 85 not only stabilizes the second spring 62, but also reduces the weight of the one-way valve plate 8. The upper section of the ejector pin 85 is movablely sealed in the guide hole 42 of the actuator 4 and blocks the liquid outlet 43. A baffle 852 is integrally formed on the upper end wall of the ejector pin 85. When the ejector pin 85 blocks the liquid outlet 43, the baffle 852 extends into the liquid outlet 43. When the one-way valve plate 8 is squeezed and deformed by the liquid to open the liquid outlet 43, the liquid will hit the baffle 852 first when entering the liquid outlet 43, which reduces the flow rate of the liquid when entering the liquid outlet 43 and prevents the flow rate of the liquid from destroying the tension of the liquid in the liquid outlet 43, so that the liquid can remain more stably in the liquid outlet 43.

[0032] An inner limiting ring 44 is provided on the inner sidewall of the actuator 4, and an outer limiting ring 36 is provided on the outer sidewall of the pump body 3. The outer limiting ring 36 is located above the inner limiting ring 44. The inner sidewall of the actuator 4 slides against the outer sidewall of the pump body 3. Under the elastic force of the first spring 34, the inner limiting ring 44 abuts against the outer limiting ring 36. When the actuator 4 is pressed, the inner limiting ring 44 and the outer limiting ring 36 will separate. When the actuator 4 is released, the inner limiting ring 44 will abut against the outer limiting ring 36 to limit the actuator 4. The transition section 311 of the manifold 31 is slidably locked in the mating hole 45. The sidewall is sealed and fitted to the inner sidewall of the mating hole 45. Several anti-friction grooves 3111 are evenly distributed around the outer sidewall of the transition section 311 to reduce the friction between the transition section 311 and the mating hole 45, so that the actuator 4 can slide more smoothly on the manifold 31. Several support ribs 35 connected to the inner sidewall of the pump body 3 are evenly distributed around the outer sidewall of the manifold 31. The first spring 34 is fitted on the transition section 311 of the manifold 31 and abuts against the support ribs 35, which not only improves the connection strength between the manifold 31 and the pump body 3, but also plays a positioning role for the first spring 34. The lower end wall of the mating hole 45 of the actuator 4 abuts against the first spring 34.

[0033] In the drip column 41 of the actuator 4, from the outside to the inside, there are mating holes 45 and mounting holes 46 coaxial with the outlet hole 43 and the guide hole 42. The guide hole 42 connects the outlet hole 43 and the mounting hole 46. A tapered connecting hole 47 is provided between the guide hole 42 and the mounting hole 46. The second guide groove 83 is evenly distributed on the inner side wall of the guide hole 42 and extends to the tapered connecting hole 47. The liquid medicine in the connecting channel 82 can flow into the second guide groove 83 through the tapered connecting hole 47. A sealing ring 431 is provided extending downward from the bottom of the outlet hole 43. The bottom wall of 31 extends downwards past the top wall of the second guide channel 83. The ejector pin 85 on the one-way valve plate 8 blocks the sealing ring 431 of the liquid outlet 43. At this time, the top wall of the second guide channel 83 is higher than the top wall of the ejector pin 85. There is a gap between the top wall of the ejector pin 85 and the second guide channel 83. When the liquid medicine enters the second guide channel 83, the liquid medicine will gather in the gap between the ejector pin 85 and the second guide channel 83. When the actuator 4 is pressed, the liquid medicine in the gap can push the ejector pin 85, thereby deforming the one-way valve plate 8 under pressure and opening the liquid outlet 43.

[0034] An inner S-shaped limiting ring groove 461 is provided on the inner side wall of the mounting hole 46 of the actuator 4, and an outer S-shaped limiting ring groove 54 is provided on the outer side wall of the pump core 5 located above the outer skirt tube 51. The pump core 5 is engaged in the mounting hole 46, and the outer side wall of the pump core 5 is sealed and fitted with the inner side wall of the mounting hole 46. The outer S-shaped limiting ring groove 54 on the pump core 5 is located above the inner S-shaped limiting ring groove 461 in the actuator 4 and is engaged with the inner S-shaped limiting groove 461. The actuator 4 performs a lower limit on the pump core 5, and the top wall of the retaining ring 84 on the one-way valve plate 8 abuts against the inner top wall of the mounting hole 46 of the actuator 4. The actuator 4 moves the one-way valve plate 8... The upper limit is reached because the one-way valve plate 8 is fixed on the one-way valve shaft 6, and the one-way valve shaft 6 is fixed in the pump core 5. Therefore, the actuator 4 positions the pump core 5, the one-way valve shaft 6, and the one-way valve plate 8. When the actuator 4 is pressed or released, the pump core 5, the one-way valve shaft 6, and the one-way valve plate 8 can move together with the actuator 4. Several spacer grooves 841 are evenly distributed around the circumference of the retaining ring platform 84 of the one-way valve plate 8. The outer diameter of the retaining ring platform 84 of the one-way valve plate 8 is smaller than the diameter of the mounting hole 46 of the actuator 4. A third annular groove is left between the retaining ring platform 84 and the mounting hole 46. The third annular groove is connected to the spacer grooves 841 to form a connecting channel 82. A pressing handle 48 extends outward from the actuator 4. The pressing handle 48 has anti-slip texture 481. The top surface of the pressing handle 48 is tilted downward at 25-35°. When in use, the thumb can press the pressing handle 48 to press the actuator 4. The anti-slip texture 481 increases the friction and prevents the thumb from slipping on the pressing handle 48. The downward tilt of the top surface of the pressing handle 48 allows the thumb to rest better on the pressing handle 48 when holding the bottle body 1. Moreover, the actuator 4 can rotate on the pump body 3, and the direction of the pressing handle 48 can be adjusted at will for easy pressing.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. Dropping bottles with dual protection against bacteria and oxygen, including: The bottle body is characterized by: an integrally formed composite film bag attached to the bottle body; a ventilation hole on the bottle body; a pump body fixedly and sealed at the bottle mouth; an integrally formed bottom-sealed manifold within the pump body; a communicating inlet and inner wall groove on the side wall of the manifold; a movable actuator on the pump body; an integrally formed drip column on the actuator; a coaxial guide hole and outlet hole on the drip column; a first spring fitted onto the manifold; the pump body and the actuator abutting against the upper and lower ends of the first spring, respectively; a pump core held in the actuator; the pump core movably disposed within the pump body and slidingly fitted against the inner wall of the manifold; when the first spring is not compressed, the pump core does not completely block the inner wall groove; and during pumping... A one-way valve shaft is inserted into the pump core, and a flow guide channel is left between the pump core and the one-way valve shaft. The mounting part on the one-way valve shaft extends out of the pump core and leaves a first annular groove between the pump core and the pump core. The mounting part fits against the inner wall of the actuator. A first flow guide groove connected to the first annular groove is left between the mounting part and the actuator. An elastic one-way valve plate is fixedly and sealed on the mounting part. A pressure-limiting deformation gap is left between the one-way valve plate and the mounting part. A second spring is provided in the one-way valve shaft. The second spring abuts against the one-way valve plate. The one-way valve plate abuts against the inner top wall of the actuator. A communication channel is left between the one-way valve plate and the actuator. The one-way valve plate extends into the flow guide hole and blocks the liquid outlet hole under the elastic force of the second spring. A second flow guide groove is left between the one-way valve plate and the flow guide hole.

2. The dropping bottle with dual protection functions of bacterial and oxygen barrier as described in claim 1, characterized in that: The manifold is provided with a coaxially connected transition section, inlet section and manifold section from top to bottom. The diameters of the transition section, inlet section and manifold section decrease in sequence. An inverted conical connecting section is provided between the transition section, inlet section and manifold section. The inlet hole is provided on the inlet section. The inner wall groove is provided on the manifold section and extends to the connecting section between the inlet section and the manifold section. The pump core is sealed and slidingly fitted with the transition section and manifold section. When the outlet hole is blocked, the pump core does not completely block the inner wall groove. Several support ribs connected to the inner wall of the pump body are evenly distributed on the outer wall of the manifold. The first spring is fitted on the transition section of the manifold and abuts against the support ribs.

3. The dropping bottle with dual protection functions of bacterial and oxygen barrier as described in claim 2, characterized in that: An annular sealing gasket is provided between the bottle mouth and the pump body. An outer limiting protrusion is provided on the outer wall of the pump body, and an inner limiting protrusion is provided on the inner wall of the actuator. The outer limiting protrusion is located above the inner limiting protrusion. The inner wall of the actuator slides against the outer wall of the pump body. Under the elastic force of the first spring, the inner limiting protrusion abuts against the outer limiting protrusion. In the drip column, from the outside to the inside, there are mating holes and mounting holes coaxial with the liquid outlet and the guide hole. The transition section of the manifold is slidably locked in the mating hole. The outer wall of the transition section is sealed to the inner wall of the mating hole. Several anti-friction grooves are evenly distributed around the outer wall of the transition section. The lower end wall of the mating hole abuts against the first spring. The guide hole connects the liquid outlet hole and the mounting hole. A tapered connecting hole is provided between the guide hole and the mounting hole. The second guide groove is evenly distributed around the inner wall of the guide hole and extends to the tapered connecting hole. A sealing ring is provided at the bottom of the liquid outlet hole. The bottom wall of the sealing ring extends downward past the top wall of the second guide groove. A one-way valve plate is sealed on the sealing ring.

4. The dropping bottle with dual protection functions of bacterial and oxygen barrier as described in claim 3, characterized in that: A T-shaped connecting hole is provided in the pump core. The one-way valve shaft is inserted into the T-shaped connecting hole and is sealed and fitted with the inner sidewall of the T-shaped connecting hole. An outer skirt tube is integrally formed on the pump core. The outer skirt tube is slidably locked in the transition section of the pump body. The outer sidewall of the outer skirt tube is sealed and fitted with the inner sidewall of the transition section. An outer S-shaped limiting ring groove is provided on the outer sidewall of the pump core located above the outer skirt tube. An inner S-shaped limiting ring groove is provided on the inner sidewall of the actuator mounting hole. The pump core is locked in the mounting hole. The outer sidewall of the pump core is sealed and fitted with the inner sidewall of the mounting hole. The outer S-shaped limiting ring groove on the pump core is located above the inner S-shaped limiting groove in the actuator and is engaged and locked with the inner S-shaped limiting ring groove.

5. The dropping bottle with dual protection functions of bacterial and oxygen barrier as described in claim 4, characterized in that: The one-way valve shaft is T-shaped. The small-diameter section of the one-way valve shaft is fitted into the small-diameter hole of the T-shaped connecting hole of the pump core, and the large-diameter section of the one-way valve shaft is fitted into the large-diameter hole of the T-shaped connecting hole of the pump core. The mounting part is integrally formed on the large-diameter section of the one-way valve shaft. A spring hole is provided between the large-diameter section of the one-way valve shaft and the mounting part. A second spring is set in the spring hole. The height of the second spring extending out of the spring hole is the spacing of the pressure-limiting deformation gap. Several third guide grooves are evenly distributed circumferentially on the outer wall of the small-diameter section of the one-way valve shaft. Several pads are evenly distributed circumferentially on the bottom wall of the large-diameter section of the one-way valve shaft. Several fourth guide grooves are evenly distributed circumferentially in the large-diameter hole of the pump core. The fourth guide grooves are connected to the first annular groove. The slot between each two adjacent pads is connected to the third guide groove and the fourth guide groove. The third guide groove, the slot, and the fourth annular groove are connected to form a guide channel between the pump core and the one-way valve shaft.

6. The dropping bottle with dual protection functions of bacterial and oxygen barrier as described in claim 5, characterized in that: A retaining ring is integrally formed on the outer ring of the one-way valve plate. Several spaced grooves are evenly distributed around the circumference of the retaining ring. A V-shaped ring extends downward from the retaining ring. A V-shaped groove is formed on the top wall of the mounting portion of the one-way valve shaft. The outer wall of the V-shaped groove is higher than the inner wall, and the inner wall is flush with the wall of the spring hole. The V-shaped ring is engaged in the V-shaped groove, with the bottom wall of the retaining ring abutting against the outer wall of the V-shaped groove. The one-way valve plate abuts against the second spring, and the top wall of the retaining ring abuts against the actuating spring. On the inner top wall of the mounting hole of the device, the outer diameter of the retaining ring of the one-way valve plate is smaller than the diameter of the mounting hole of the actuator. A third annular groove is left between the retaining ring and the mounting hole. The third annular groove is connected to the spacer groove to form a communication channel. A pin is integrally formed on the one-way valve plate. A weight reduction hole is provided in the pin. The lower section of the pin extends downward into the second spring. The upper section of the pin is movably sealed in the guide hole. The pin seals the sealing ring of the liquid outlet hole. A baffle is integrally formed on the upper end wall of the pin. The baffle extends into the liquid outlet hole.

7. The drip bottle with dual protection functions of bacterial and oxygen barrier as described in any one of claims 1 to 6, characterized in that: The open end of the composite film bag is bonded to the bottle mouth. The composite film bag includes a barrier layer and a functional layer. The functional layer is located inside the barrier layer and adheres to the barrier layer. The functional layer is adhered to the inner wall of the bottle. The barrier layer is a film made of COC or COP material, and the functional layer is a film made of PP or PE material.

8. The dropping bottle with dual protection functions of bacterial and oxygen barrier as described in any one of claims 1 to 6, characterized in that: A pressing handle extends outward from the actuator, and the pressing handle has anti-slip texture. The top surface of the pressing handle is tilted downward at 25-35°.

9. The dropping bottle with dual protection functions of bacterial and oxygen barrier as described in any one of claims 1 to 6, characterized in that: The ventilation port is located near the bottle opening, and the pump body is positioned outside the ventilation port without affecting its ventilation function.

10. The drip bottle with dual protection functions of bacterial and oxygen barrier according to any one of claims 1 to 6, characterized in that: A bottle cap is sealed on the drip column of the actuator. A positioning post extends downward from the inner top wall of the bottle cap and can be inserted into the liquid outlet. Several positioning ribs are evenly distributed around the inner side wall of the bottle cap. The positioning ribs abut against the outer side wall of the drip column. A pressure relief hole is provided on the bottle cap.

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