Dropping bottle with bacteria-blocking and oxygen-blocking dual-protection functions

Abstract

The invention discloses a liquid dropping bottle with bacteria-blocking and oxygen-blocking dual protection functions, which comprises a bottle body, a composite film bag arranged in the bottle body, a ventilation hole formed in the bottle body, a pump body arranged on the bottle body, a trigger movably arranged on the pump body, a liquid dropping column arranged on the trigger, and a first spring arranged in the pump body, the trigger abuts against the first spring, a pump core is arranged in the trigger, a one-way valve shaft is inserted in the pump core, a first ring 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, and 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 the liquid outlet hole. The liquid dripping device can play a good role in resisting oxygen and bacteria during liquid dripping, and only quantitative liquid medicine can be squeezed out no matter how much force is used for pressing the trigger, so that the liquid medicine drips in the form of liquid drops and cannot be jetted.

Description

Technical Field

[0001] The invention relates to the field of pharmaceutical packaging, and in particular to a dropper bottle with dual protective functions of preventing bacteria and oxygen. Background Art

[0002] The eye drops dropper bottles currently on the market need to inhale external air and return it to the bottle body after the dripping is completed before the bottle body can expand and reset. However, after the external air enters the bottle body, the microorganisms in the air can easily contaminate the liquid medicine in the bottle body. The current conventional solution is to add preservatives during use or storage to reduce the growth of microorganisms and cause product contamination. However, preservatives may cause side effects such as conjunctival irritation. Another solution is to set a sterilizing filter membrane on the reflux channel so that the air passes through the sterilization function of the sterilizing filter membrane during reflux to purify the reflux air. However, the oxygen in the reflux air will react with the active ingredients in oxygen-sensitive drugs, resulting in a decrease in the active ingredients in the liquid medicine and an increase in harmful ingredients such as impurities and related substances, which cannot provide the safest protection effect for the liquid medicine. Currently, the eye drops bottles on the market need to be pressed before the liquid can be squeezed out. Due to individual differences, each person's pressing force is different. People with less strength can apply less force to the bottle body, which can cause the liquid to drip from the drip head in the form of droplets, while people with greater strength can easily apply greater squeezing force to the bottle body, causing the liquid to splash out from the drip head. Summary of the invention

[0003] The purpose of the present invention is to provide a dropper bottle with dual protective functions of preventing bacteria and oxygen, which can prevent external air from flowing back and contacting the medicine liquid, and can make the medicine liquid drip in the form of droplets no matter how much pressure is pressed.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a drip bottle with dual protection functions of preventing bacteria and oxygen, including: a bottle body, a composite film bag integrally formed in the bottle body, the composite film bag is attached to the bottle body, a ventilation hole is arranged on the bottle body, a pump body is fixedly and sealedly arranged on the bottle mouth of the bottle body, a bottom-sealed liquid collection pipe is integrally formed in the pump body, a connected liquid inlet hole and inner wall groove are arranged on the side wall of the liquid collection pipe, a trigger is movably and sealably arranged on the pump body, a drip column is integrally formed on the trigger, a coaxial guide hole and liquid outlet hole are arranged on the drip column, a first spring is mounted on the liquid collection pipe, the pump body and the trigger are respectively against the upper and lower ends of the first spring, a pump core is clamped in the trigger, the pump core is movably arranged in the pump body and slidably fits with the inner wall of the liquid collection pipe, and the first spring is not When pressure is applied, the pump core does not completely block the inner wall groove, a one-way valve shaft is inserted in the pump core, a guide channel is left between the pump core and the one-way valve shaft, the mounting portion on the one-way valve shaft extends out of the pump core and a first annular groove is left between the pump core, the mounting portion fits the inner side wall of the actuator, a first guide groove connected to the first annular groove is left between the mounting portion and the actuator, an elastic one-way valve disc is fixedly sealed on the mounting portion, a pressure-limiting deformation gap is left between the one-way valve disc and the mounting portion, a second spring is arranged in the one-way valve shaft, the second spring rests on the one-way valve disc, the one-way valve disc rests on the inner top wall of the actuator, a connecting channel is left between the one-way valve disc and the actuator, the one-way valve disc extends into the guide hole and blocks the liquid outlet hole under the elastic force of the second spring, and a second guide groove is left between the one-way valve disc and the guide hole.

[0005] Furthermore, in the aforementioned drip bottle with dual protection functions of preventing bacteria and oxygen, a transition section, a liquid inlet section and a liquid collection section which are coaxially connected are arranged in sequence from top to bottom in the liquid collection tube, the apertures of the transition section, the liquid inlet section and the liquid collection section are successively reduced, an inverted cone connecting section is arranged between the transition section, the liquid inlet section and the liquid collection section, the liquid inlet hole is arranged on the liquid inlet section, the inner wall groove is arranged on the liquid collection section and extends to the connecting section between the liquid inlet section and the liquid collection section, the pump core is sealingly and slidingly matched with the transition section and the liquid collection section, and when the liquid outlet hole is blocked, the pump core does not completely block the inner wall groove, and a plurality of supporting ribs connected to the inner wall of the pump body are evenly distributed on the circumference of the outer wall of the liquid collection tube, and the first spring is sleeved on the transition section of the liquid collection tube and rests on the supporting ribs.

[0006] Furthermore, the aforementioned drip bottle with dual protection functions of preventing bacteria and oxygen, wherein an annular sealing gasket is arranged between the bottle mouth and the pump body, an outer limit convex ring is arranged on the outer wall of the pump body, an inner limit convex ring is arranged on the inner wall of the actuator, the outer limit convex ring is located above the inner limit convex ring, the inner wall of the actuator slides and fits on the outer wall of the pump body, and under the elastic force of the first spring, the inner limit convex ring abuts against the outer limit convex ring, and matching holes and mounting holes coaxial with the liquid outlet and the guide hole are arranged in sequence from the outside to the inside in the drip column, and the liquid collection pipe is through The transition section sliding card is arranged in the matching hole, the outer side wall of the transition section is sealed and fitted with the inner side wall of the matching hole, a plurality of friction reducing grooves are evenly distributed on the circumference of the outer side wall of the transition section, the lower end wall of the matching hole abuts against the first spring, the guide hole is connected to the liquid outlet hole and the mounting hole, a conical connecting hole is arranged between the guide hole and the mounting hole, the second guide grooves are evenly distributed on the inner side wall of the guide hole and extend to the conical connecting hole, a sealing ring is extended downward from the bottom of the liquid outlet hole, the bottom wall of the sealing ring goes downward over the top wall of the second guide groove, and the one-way valve sheet is sealed on the sealing ring.

[0007] Furthermore, the aforementioned dropper bottle with dual protection functions of preventing bacteria and oxygen, wherein a T-shaped connecting hole is provided in the pump core, the one-way valve shaft is inserted in the T-shaped connecting hole and sealed with the inner wall of the T-shaped connecting hole, an outer skirt tube is integrally formed on the pump core, the outer skirt tube is slidably clamped in the transition section of the pump body, the outer side wall of the outer skirt tube is sealed with 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, an inner S-shaped limiting ring groove is provided on the inner side wall of the mounting hole of the actuator, the pump core is clamped in the mounting hole, the outer side wall of the pump core is sealed with the inner side wall in 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 with the inner S-shaped limiting ring groove.

[0008] Furthermore, in the aforementioned drip bottle with dual protection functions of preventing bacteria and oxygen, the one-way valve shaft is in a T-shape, the small-diameter section of the one-way valve shaft is clamped in the small-diameter hole of the T-shaped connecting hole of the pump core, the large-diameter section of the one-way valve shaft is clamped in the large-diameter hole of the T-shaped connecting hole of the pump core, the mounting portion 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 portion, the second spring is provided in the spring hole, and the height of the second spring extending out of the spring hole is It is the spacing of the pressure-limiting deformation gap. A number of third guide grooves are evenly distributed on the circumference of the outer wall of the small diameter section of the one-way valve shaft, a number of pads are evenly distributed on the circumference of the bottom wall of the large diameter section of the one-way valve shaft, and a number of fourth guide grooves are evenly distributed on the circumference in the large diameter hole of the pump core. The fourth guide groove is connected to the first annular groove, and the intermediate groove between each adjacent two pads is connected to the third guide groove and the fourth guide groove. The third guide groove, the intermediate groove 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 protection functions of preventing bacteria and oxygen, a retaining ring platform is integrally formed on the outer ring of the one-way valve plate, a plurality of spacing grooves are evenly distributed on the circumference of the retaining ring platform, a V-shaped ring platform is extended downwardly on the retaining ring platform, a V-shaped ring groove is provided on the top wall of the mounting portion of the one-way valve shaft, the outer ring wall of the V-shaped ring groove is higher than the inner ring wall of the V-shaped ring groove, the inner ring wall of the V-shaped ring groove is flush with the hole wall of the spring hole, the V-shaped ring platform is clamped in the V-shaped ring groove, the bottom wall of the retaining ring platform abuts against the outer ring wall of the V-shaped ring groove, and the one-way valve plate abuts against the second spring The top wall of the retaining ring platform abuts against the inner top wall of the mounting hole of the actuator, the outer diameter of the retaining ring platform of the one-way valve plate is smaller than the aperture of the mounting hole of the actuator, a third annular groove is left between the retaining ring platform and the mounting hole, the third annular groove is connected with the spacing groove to form a connecting channel, a ejector pin is integrally formed on the one-way valve plate, a weight reduction hole is arranged 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 is sealed on the sealing ring of the liquid outlet hole, a retaining platform is integrally formed on the upper end wall of the ejector pin, and the retaining platform extends into the liquid outlet hole.

[0010] Furthermore, in the aforementioned drip bottle with dual protection functions of blocking bacteria and oxygen, the open end of the composite film bag is bonded together with the bottle mouth of the bottle body, and the composite film bag comprises: a barrier layer and a functional layer, the functional layer is located inside the barrier layer and abuts on the barrier layer, the functional layer abuts on 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 dropper bottle with dual protection functions of blocking bacteria and oxygen, a push handle is extended outwardly on the trigger, an anti-slip pattern is provided on the push handle, and the top surface of the push handle is tilted downward by 25 to 35 degrees.

[0012] Furthermore, in the aforementioned drip bottle with dual protection functions of blocking bacteria and oxygen, the ventilation hole is arranged near the bottle mouth, and the pump body is blocked on the outside of the ventilation hole without affecting the ventilation of the ventilation hole.

[0013] Furthermore, in the aforementioned dripping bottle with the dual protective functions of blocking bacteria and oxygen, a bottle cap is sealed on the dripping column of the trigger, a positioning column that can be inserted into the liquid outlet is downwardly extended on the inner top wall of the bottle cap, a plurality of positioning ribs are evenly distributed on the circumference of the inner side wall of the bottle cap, the positioning ribs rest on the outer side wall of the dripping column, and a pressure relief hole is provided on the bottle cap.

[0014] The advantages of the present invention are: when the medicine liquid drips from the liquid outlet, the one-way valve sheet simultaneously blocks the liquid outlet, and the external air in the composite film bag cannot flow back into the composite film bag. The external air cannot contact the medicine liquid in the composite film bag, thus preventing bacteria and oxygen in the air from contaminating the medicine liquid, thereby playing a good role in blocking oxygen and bacteria. When the amount of medicine liquid in the composite film bag decreases, the composite film bag cannot expand and recover, and negative pressure will appear between the composite film bag and the bottle body. At this time, the external air will be filled into the space between the composite film bag and the bottle body through the ventilation holes on the bottle body, and the air pressure value between the composite film bag and the bottle body is consistent with the external environment The air pressure value of the environment is kept consistent, which can not only make the medicine liquid in the composite film bag drip out smoothly, but also will not affect the appearance of the entire drip bottle; a limited pressure deformation gap is left between the one-way valve plate and the mounting part of 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 fixed amount of medicine liquid can be squeezed out, and the one-way valve plate and the second spring generate smaller elastic potential energy, and the one-way valve plate generates smaller pushing force when pushing the medicine liquid in the liquid outlet, so that the medicine liquid in the liquid outlet can drip out in the form of droplets instead of being sprayed out in the form of a jet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the dropper bottle with dual protective functions of blocking bacteria and oxygen according to the present invention.

[0016] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure.

[0017] Figure 3 yes Figure 2 Schematic diagram of the structure after removing the bottle body, composite film bag and bottle cap.

[0018] Figure 4 yes Figure 3 Schematic diagram of the structure of the pump body.

[0019] Figure 5 yes Figure 3 Schematic diagram of the structure of the actuator.

[0020] Figure 6 yes Figure 3 Schematic diagram of the structure of the middle pump core.

[0021] Figure 7 yes Figure 3 Schematic diagram of the structure of the one-way valve shaft.

[0022] Figure 8 yes Figure 3 Schematic diagram of the structure of the one-way valve plate.

[0023] Fig. 9 yes Figure 1 Schematic diagram of the structure of the middle bottle cap. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0025] like Figures 1 to 9As shown, the dropper bottle with dual protection functions of blocking bacteria and oxygen described in the present invention includes: a bottle body 1, a composite film bag 2 is integrally formed in the bottle body 1, the open end of the composite film bag 2 is compositely bonded to the bottle mouth of the bottle body 1, and the composite film bag 2 is attached to the inner wall of the bottle body 1, and the composite film bag 2 includes: a barrier layer 21 and a functional layer 22, the functional layer 22 is located in the barrier layer 21 and attached to the barrier layer 21, and the functional layer 21 is attached to 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, and a ventilation hole 11 is provided on the bottle body 1, and the ventilation hole 11 is provided at a position close to the bottle mouth, and is fixedly sealed on the bottle mouth of the bottle body 1. A pump body 3 is provided, and the pump body 3 is blocked at the outside of the ventilation hole 11 without affecting the ventilation of the ventilation hole 11. The ventilation hole 11 can improve the overall aesthetics after being blocked by the pump body 3. 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, a liquid inlet hole 32 is provided on the side wall of the liquid collection pipe 31, and an inner wall groove 33 connected with the liquid inlet hole 32 is provided on the inner side wall of the liquid collection pipe 31. A trigger 4 is movably sealed on the pump body 3, a drip column 41 is integrally formed on the trigger 4, and a coaxial guide hole 42 and a liquid outlet hole 43 are provided in the drip column 41. A bottle cap 9 is sealed on the drip column 41 of the trigger 4, and a downwardly extending inner top wall of the bottle cap 9 is provided. There is a positioning column 91 that can extend into the liquid outlet hole 43, and a plurality of positioning ribs 92 are evenly distributed on the inner side wall of the bottle cap 9. The positioning ribs 92 abut against the outer side wall of the dripping column 41. A pressure relief hole 93 is provided on the bottle cap 9. When the bottle cap 9 is sealed and covered on the dripping column 41, the air between the bottle cap 9 and the dripping column 41 is discharged outward from the pressure relief hole 93, so that the bottle cap 9 can form a good sealing connection structure with the dripping column 41. A first spring 34 is sleeved on the liquid collection pipe 31, and the pump body 3 and the trigger 4 abut against the upper and lower ends of the first spring 34 respectively. A pump core 5 is provided in the trigger 4. The pump core 5 is movably arranged in the pump body 3 and slides and fits with the inner side wall of the liquid collection pipe 31. When the first spring 34 is not under pressure, the pump core 5 is not completely sealed. The inner wall groove 33 is blocked, and the pump core 5 is clamped in the actuator 4. A one-way valve shaft 6 is inserted in the pump core 5. A guide channel 7 is left between the pump core 5 and the one-way valve shaft 6. The mounting portion 61 on the one-way valve shaft 6 extends out of the pump core 5 and a first annular groove 611 is left between the pump core 5. The mounting portion 61 fits the inner wall of the actuator 4. A first guide groove 612 connected to the first annular groove 611 is left between the mounting portion 61 and the actuator 4. An elastic one-way valve disc 8 is fixedly sealed on the mounting portion 61. A pressure-limiting deformation gap 81 is left between the one-way valve disc 8 and the mounting portion 61. A second spring 62 is arranged in the one-way valve shaft 6. The second spring 62 abuts against the one-way valve disc 8. The one-way valve disc 8 abuts against the inner top wall of the actuator 4.A communication channel 82 connected to the first guide groove 612 and the guide hole 42 is left between the one-way valve plate 8 and the actuator 4. The one-way valve plate 8 extends into the guide hole 42 and blocks the liquid outlet 43 under the elastic force of the second spring 62. A second guide groove 83 is left between the one-way valve plate 8 and the guide hole 42.

[0026] When using for the first time, remove the bottle cap 9, invert the dropper bottle, press the trigger 4, and the trigger 4 drives the one-way valve plate 8, the one-way valve shaft 6 and the pump core 5 to overcome the elastic force of the first spring 34 and move toward the bottle body 1. The pump core 5 completely blocks the inner wall groove 33 on the liquid collection tube 31 during the movement. During the continued movement, the gas between the pump core 5 and the liquid collection tube 31 will be compressed, and the compressed gas will sequentially enter the guide channel 7 between the pump core 5 and the one-way valve shaft 6, the first annular groove 611 between the mounting portion 61 and the pump core 5, and the first guide groove 61 between the mounting portion 61 and the trigger. 2, the connecting channel 82 between the one-way valve plate 8 and the actuator 4, and the one-way valve plate 8, and finally converge in the second guide groove 83 between the guide holes 42. When the gas pressure gathered in the second guide groove 83 is large enough, the gas squeezes the elastic one-way valve plate 8 so that the one-way valve plate 8 overcomes the elastic force of the second spring 62 and opens the liquid outlet 43 downward, and 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-blocks 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 again, 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, and the actuator 4 is released. 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 tube 31 through the liquid inlet hole 32 and the inner wall groove 33 on the liquid collection tube 31, and then filled into the guide channel 7, the first annular groove 611, the first guide groove 612, the connecting channel 82 and the second guide groove 83 under the action of negative pressure. When the amount of liquid medicine in the composite film bag 2 decreases, the composite film bag 2 cannot expand and recover, and negative pressure will appear between the composite film bag 2 and the bottle body 1. At this time, the outside air will fill in between the composite film bag 2 and the bottle body 1 through the ventilation holes 11 on the bottle body 1. The air pressure value between the composite film bag 2 and the bottle body 1 is 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 liquid collecting tube 31 to discharge the liquid from the liquid outlet 43. When the liquid in the second guide groove 83 squeezes the one-way valve plate 8, since there is a pressure-limiting deformation gap 81 between the one-way valve plate 8 and the mounting portion 61, the deformation of the one-way valve plate 8 and the second spring 62 are limited. After the one-way valve plate 8 is limited in deformation, the opening amount of the liquid outlet 43 is limited, so that a certain amount of liquid is gathered on the one-way valve plate 8, and the liquid stays in the liquid outlet 43 under the action of its own tension. When the liquid in the second guide groove 83 enters the liquid outlet 4 3, the extrusion force of the liquid medicine in the second guide groove 83 on the one-way valve plate 8 is reduced, and the one-way valve plate 8 is re-sealed on the liquid outlet 43 under the elastic force of the second spring 62. During the blocking process, the liquid medicine in the liquid outlet 43 is pushed up, so that the liquid medicine is pushed out of the liquid outlet 43. Since the second spring 62 and the one-way valve plate 8 are both limited in deformation, the elastic potential energy generated by the second spring 62 and the one-way valve plate 8 when being squeezed is relatively small, and the pushing force on the liquid medicine in the liquid outlet 43 is small, so that the liquid medicine in the liquid outlet 43 can drip out in the form of droplets instead of being sprayed out in the form of a jet. When the liquid medicine drips, the one-way valve plate 8 simultaneously blocks the liquid outlet 43, and the external air in the composite film bag 2 cannot flow back into the composite film bag 2, which plays a good role in blocking oxygen and bacteria.

[0028] In this embodiment, a transition section 311, a liquid inlet section 312 and a liquid converging section 313 are coaxially connected and arranged in sequence from top to bottom in the liquid converging tube 31. The apertures of the transition section 311, the liquid inlet section 312 and the liquid converging section 313 are successively reduced. An inverted cone-shaped connecting section 314 is arranged between the transition section 311, the liquid inlet section 312 and the liquid converging section 313. The liquid inlet hole 32 is arranged on the liquid inlet section 312. Two liquid inlet holes 32 are symmetrically arranged on the liquid inlet section 312 to increase the liquid inlet rate. The inner wall groove 33 is arranged on the liquid converging section 313 and extends to the connecting section 314 between the liquid inlet section 312 and the liquid converging section 313. Two inner wall grooves 33 are symmetrically arranged on the liquid converging section 313. The two inner wall grooves 33 are respectively connected to the two liquid inlets. The hole 32 is aligned up and down, and the pump core 5 and the liquid confluence section 313 are sealed and slidably matched. Since the inner diameters of the transition section 311 and the liquid inlet section 312 are larger than the inner diameter of the liquid confluence section 313, there are gaps between the pump core 5 and the transition section 311, the liquid inlet section 312 and the two connecting sections 314. When the medicine enters the liquid inlet section 312 from the liquid inlet hole 32, the medicine will gather in the connecting section 314 between the liquid inlet section 312 and the liquid confluence section 313. When the pump core 5 completely blocks the two inner wall grooves 33 on the liquid confluence section 313, the medicine will remain in the connecting section 314. When the pump core 5 does not completely block the two inner wall grooves 33 on the liquid confluence section 313, the medicine will flow into the liquid confluence section 313 through the two inner wall grooves 33.

[0029] An outer skirt tube 51 is integrally formed on the pump core 5, and the outer skirt tube 51 is slidably clamped in the transition section 311 of the liquid collecting pipe 31, and the outer wall of the outer skirt tube 51 is sealed and fitted with the inner wall of the transition section 311. The pump core 5 and the outer skirt tube 51 on the pump core 5 respectively slide with the liquid collecting section 313 and the transition section 311 of the liquid collecting pipe 31 to 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, and the one-way valve shaft 6 is inserted in the T-shaped connecting hole 52 and is sealed and fitted with the inner wall of the T-shaped connecting hole 52 to form a guide channel 7. The liquid medicine in the liquid collecting section 313 can pass through the T-shaped connecting hole 52 and enter the guide channel 7 between the one-way valve shaft 6 and the pump core 5 to flow.

[0030] The one-way valve shaft 6 is T-shaped, the small diameter section of the one-way valve shaft 6 is clamped in 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 clamped in the large diameter hole of the T-shaped connecting hole 52 of the pump core 5. The mounting portion 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. A plurality of third guide grooves 63 are evenly distributed circumferentially on the outer wall of the small diameter section of the one-way valve shaft 6, and a plurality of cushion blocks 64 are evenly distributed circumferentially on the bottom wall of the large diameter section of the one-way valve shaft 6. A plurality of fourth guide grooves 53 are evenly distributed circumferentially in the large diameter hole of the pump core 5, and the fourth guide groove 53 is connected to the first annular groove 611, and the intermediate groove 65 between each two adjacent cushion blocks 64 is connected to the third guide groove 63 and the fourth guide groove 53. The third guide groove 63, the intermediate groove 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 portion 61, and the second spring 62 is arranged 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 sealed and arranged on the mounting portion 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, and a V-shaped ring platform 842 is extended downwardly on the retaining ring platform 84. A V-shaped ring groove 613 is provided on the top wall of the mounting portion 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, and 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 clamped in the V-shaped ring groove 613, and the bottom wall of the retaining ring platform 84 abuts against the outer ring wall of the V-shaped ring groove 613. The provision of 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, and a weight reduction 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 contact the second spring 62. The spring 62 is limited so that the second spring 62 can be stably deformed after being compressed. The weight-reducing hole 851 is set in the ejector pin 85. While stabilizing the second spring 62, it can also reduce the weight of the one-way valve plate 8. The upper section of the ejector pin 85 is movable and sealed in the guide hole 42 of the actuator 4 and blocked on the liquid outlet hole 43. A baffle 852 is integrally formed on the upper end wall of the ejector pin 85. When the ejector pin 85 is blocked on the liquid outlet hole 43, the baffle 852 extends into the liquid outlet hole 43. When the one-way valve plate 8 is squeezed and deformed by the liquid to open the liquid outlet hole 43, the liquid will first hit the baffle 852 when entering the liquid outlet hole 43, thereby reducing the flow rate of the liquid when entering the liquid outlet hole 43, preventing the flow rate of the liquid from destroying the tension of the liquid in the liquid outlet hole 43, and allowing the liquid to stay in the liquid outlet hole 43 more stably.

[0032] An inner limiting convex ring 44 is provided on the inner side wall of the trigger 4, and an outer limiting convex ring 36 is provided on the outer side wall of the pump body 3. The outer limiting convex ring 36 is located above the inner limiting convex ring 44. The inner side wall of the trigger 4 slides and fits on the outer side wall of the pump body 3. Under the elastic force of the first spring 34, the inner limiting convex ring 44 abuts against the outer limiting convex ring 36. When the trigger 4 is pressed, the inner limiting convex ring 44 and the outer limiting convex ring 36 will separate. When the trigger 4 is released, the inner limiting convex ring 44 abuts against the outer limiting convex ring 36 to limit the trigger 4. The transition section 311 of the liquid collecting pipe 31 is slidably clamped in the matching hole 45. The outer The side wall is sealed to the inner wall of the matching hole 45, and a plurality of friction reducing grooves 3111 are evenly distributed on the circumference of the outer wall of the transition section 311 to reduce the friction between the transition section 311 and the matching hole 45, so that the actuator 4 can slide more smoothly on the manifold 31. A plurality of support ribs 35 connected to the inner wall of the pump body 3 are evenly distributed on the circumference of the outer wall of the manifold 31. The first spring 34 is mounted 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 matching hole 45 of the actuator 4 abuts against the first spring 34.

[0033] In the drip column 41 of the trigger 4, a matching hole 45 and a mounting hole 46 are sequentially arranged from the outside to the inside, which are coaxial with the liquid outlet hole 43 and the guide hole 42. The guide hole 42 is connected to the liquid outlet hole 43 and the mounting hole 46. A conical connecting hole 47 is arranged between the guide hole 42 and the mounting hole 46. The second guide groove 83 is evenly distributed on the inner wall of the guide hole 42 and extends to the conical connecting hole 47. The liquid in the connecting channel 82 can flow into the second guide groove 83 through the conical connecting hole 47. A sealing ring 431 is extended downward from the bottom of the liquid outlet hole 43. The sealing ring 431 is provided at the bottom of the liquid outlet hole 43. The bottom wall of the one-way valve plate 81 passes downward over the top wall of the second guide groove 83, and the ejector pin 85 on the one-way valve plate 8 is sealed on the sealing ring 431 of the liquid outlet hole 43. At this time, the top wall of the second guide groove 83 is higher than the top wall of the ejector pin 85, and a gap is left between the top wall of the ejector pin 85 and the second guide groove 83. When the medicine liquid enters the second guide groove 83, the medicine liquid will gather in the gap between the ejector pin 85 and the second guide groove 83. When the actuator 4 is pressed, the medicine liquid in the gap can push the ejector pin 85, so that the one-way valve plate 8 is compressed and deformed, so that the ejector pin 85 opens the liquid outlet hole 43.

[0034] An inner S-shaped limiting ring groove 461 is provided on the inner wall of the mounting hole 46 of the actuator 4, and an outer S-shaped limiting ring groove 54 is provided on the outer wall of the pump core 5 located above the outer skirt tube 51. The pump core 5 is clamped in the mounting hole 46, and the outer wall of the pump core 5 is sealed and fitted with the inner 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 limits the pump core 5 downward, and the top wall of the retaining ring platform 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 pushes the one-way valve plate 8 The one-way valve disc 8 is fixed on the one-way valve shaft 6, and the one-way valve shaft 6 is fixed in the pump core 5, so the actuator 4 positions the pump core 5, the one-way valve shaft 6 and the one-way valve disc 8. In this way, when the actuator 4 is pressed or released, the pump core 5, the one-way valve shaft 6 and the one-way valve disc 8 can move with the actuator 4. A plurality of spacing grooves 841 are evenly distributed on the circumference of the retaining ring platform 84 of the one-way valve disc 8. The outer diameter of the retaining ring platform 84 of the one-way valve disc 8 is smaller than the aperture of the mounting hole 46 of the actuator 4. A third ring groove is left between the retaining ring platform 84 and the mounting hole 46. The third ring groove is connected to the spacing groove 841 to form a connecting channel 82. A push handle 48 is extended outward from the trigger 4, and an anti-slip pattern 481 is provided on the push handle 48. The top surface of the push handle 48 is tilted downward by 25 to 35 degrees. When in use, the thumb can be pressed on the push handle 48 to press the trigger 4. The anti-slip pattern 481 can increase the friction force to prevent the thumb and the push handle 48 from slipping. The downward tilted top surface of the push handle 48 can make the thumb better rest on the push handle 48 when holding the bottle body 1, and the trigger 4 can rotate on the pump body 3, and the direction of the push handle 48 can be adjusted at will to facilitate pressing.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does 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. The dropper bottle has dual protection functions of blocking bacteria and oxygen, including: The bottle body is characterized in that: a composite film bag is integrally formed in the bottle body, the composite film bag is close to the bottle body, a ventilation hole is arranged on the bottle body, a pump body is fixedly and sealedly arranged on the bottle mouth of the bottle body, a bottom-sealed liquid collection pipe is integrally formed in the pump body, a connected liquid inlet hole and inner wall groove are arranged on the side wall of the liquid collection pipe, a trigger is movably and sealably arranged on the pump body, a drip column is integrally formed on the trigger, a coaxial guide hole and liquid outlet hole are arranged on the drip column, a first spring is mounted on the liquid collection pipe, the pump body and the trigger are respectively against the upper and lower ends of the first spring, a pump core is clamped in the trigger, the pump core is movably arranged in the pump body and slidably fits with the inner wall of the liquid collection pipe, when the first spring is not under pressure, the pump core does not completely block the inner wall groove, A one-way valve shaft is inserted in the core, a guide channel is left between the pump core and the one-way valve shaft, a mounting portion on the one-way valve shaft extends out of the pump core and a first annular groove is left between the pump core, the mounting portion fits the inner side wall of the actuator, a first guide groove connected to the first annular groove is left between the mounting portion and the actuator, an elastic one-way valve disc is fixedly sealed on the mounting portion, a pressure-limiting deformation gap is left between the one-way valve disc and the mounting portion, a second spring is arranged in the one-way valve shaft, the second spring abuts on the one-way valve disc, the one-way valve disc abuts on the inner top wall of the actuator, a connecting channel is left between the one-way valve disc and the actuator, the one-way valve disc extends into the guide hole and blocks the liquid outlet hole under the elastic force of the second spring, and a second guide groove is left between the one-way valve disc and the guide hole.

2. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to claim 1 is characterized in that: A transition section, a liquid inlet section and a liquid converging section are coaxially connected and arranged in sequence from top to bottom in the liquid converging pipe. The apertures of the transition section, the liquid inlet section and the liquid converging section shrink in sequence. An inverted cone connecting section is arranged between the transition section, the liquid inlet section and the liquid converging section. The liquid inlet hole is arranged on the liquid inlet section. The inner wall groove is arranged on the liquid converging section and extends to the connecting section between the liquid inlet section and the liquid converging section. The pump core is sealingly and slidingly matched with the transition section and the liquid converging section. When the liquid outlet hole is blocked, the pump core does not completely block the inner wall groove. A plurality of supporting ribs connected to the inner wall of the pump body are evenly distributed on the circumference of the outer wall of the liquid converging pipe. The first spring is sleeved on the transition section of the liquid converging pipe and rests on the supporting ribs.

3. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to claim 2 is characterized in that: An annular sealing gasket is arranged between the bottle mouth and the pump body, an outer limiting convex ring is arranged on the outer side wall of the pump body, an inner limiting convex ring is arranged on the inner side wall of the actuator, the outer limiting convex ring is located above the inner limiting convex ring, the inner side wall of the actuator slides and fits on the outer side wall of the pump body, and the inner limiting convex ring abuts against the outer limiting convex ring under the elastic force of the first spring. Matching holes and mounting holes coaxial with the liquid outlet and the guide hole are arranged in the drip column from the outside to the inside, and the transition section of the liquid collection pipe is slidably clamped in the matching hole. The outer wall of the section is sealed and fitted with the inner wall of the matching hole, a plurality of friction reducing grooves are evenly distributed on the circumference of the outer wall of the transition section, the lower end wall of the matching hole abuts against the first spring, the guide hole is connected to the liquid outlet hole and the mounting hole, a tapered connecting hole is arranged between the guide hole and the mounting hole, the second guide grooves are evenly distributed on the inner wall of the guide hole and extend to the tapered connecting hole, a sealing ring is extended downward from the bottom of the liquid outlet hole, the bottom wall of the sealing ring goes downward over the top wall of the second guide groove, and the one-way valve sheet is sealed on the sealing ring.

4. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to claim 3 is characterized in that: A T-shaped connecting hole is provided in the pump core, the one-way valve shaft is inserted in the T-shaped connecting hole and sealed with the inner wall of the T-shaped connecting hole, an outer skirt tube is integrally formed on the pump core, the outer skirt tube is slidably clamped in the transition section of the pump body, the outer side wall of the outer skirt tube is sealed with 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 above the outer skirt tube, an inner S-shaped limiting ring groove is provided on the inner side wall of the mounting hole of the actuator, the pump core is clamped in the mounting hole, the outer side wall of the pump core is sealed with 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 is engaged with the inner S-shaped limiting ring groove.

5. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to claim 4 is characterized in that: The one-way valve shaft is in a T-shape, the small diameter section of the one-way valve shaft is clamped in the small diameter hole of the T-shaped connecting hole of the pump core, the large diameter section of the one-way valve shaft is clamped in the large diameter hole of the T-shaped connecting hole of the pump core, the mounting portion is integrally formed on the large diameter section of the one-way valve shaft, a spring hole is arranged between the large diameter section of the one-way valve shaft and the mounting portion, the second spring is arranged 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, a plurality of third guide grooves are uniformly distributed circumferentially on the outer side wall of the small diameter section of the one-way valve shaft, a plurality of pads are uniformly distributed circumferentially on the bottom wall of the large diameter section of the one-way valve shaft, a plurality of fourth guide grooves are uniformly distributed circumferentially in the large diameter hole of the pump core, the fourth guide groove is connected to the first annular groove, the intermediate groove between each two adjacent pads is connected to the third guide groove and the fourth guide groove, the third guide groove, the intermediate groove and the fourth annular groove are connected to form a guide channel between the pump core and the one-way valve shaft.

6. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to claim 5 is characterized in that: A retaining ring platform is integrally formed on the outer ring of the one-way valve disc, a plurality of spacing grooves are evenly distributed on the circumference of the retaining ring platform, a V-shaped ring platform is extended downwardly on the retaining ring platform, a V-shaped ring groove is arranged on the top wall of the mounting portion of the one-way valve shaft, the outer ring wall of the V-shaped ring groove is higher than the inner ring wall of the V-shaped ring groove, the inner ring wall of the V-shaped ring groove is flush with the hole wall of the spring hole, the V-shaped ring platform is clamped in the V-shaped ring groove, the bottom wall of the retaining ring platform abuts against the outer ring wall of the V-shaped ring groove, the one-way valve disc abuts against the second spring, and the top wall of the retaining ring platform abuts against the trigger. On the inner top wall of the mounting hole of the actuator, the outer diameter of the retaining ring platform of the one-way valve plate is smaller than the aperture of the mounting hole of the actuator, and a third annular groove is left between the retaining ring platform and the mounting hole, and the third annular groove is connected with the spacing groove to form a connecting channel, and a ejector pin is integrally formed on the one-way valve plate, and a weight reduction hole is arranged in the ejector pin, and the lower section of the ejector pin extends downward into the second spring, and the upper section of the ejector pin is movably sealed in the guide hole, and the ejector pin is sealed on the sealing ring of the liquid outlet hole, and a retaining platform is integrally formed on the upper end wall of the ejector pin, and the retaining platform extends into the liquid outlet hole.

7. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to any one of claims 1 to 6, characterized in that: The open end of the composite film bag is bonded to the bottle mouth of the bottle body, and the composite film bag includes: a barrier layer and a functional layer, the functional layer is located inside the barrier layer and abuts on the barrier layer, and the functional layer abuts on 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.

8. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to any one of claims 1 to 6, characterized in that: A pressing handle is extended outwardly from the trigger, and anti-slip grooves are arranged on the pressing handle. The top surface of the pressing handle is inclined downward by 25 to 35 degrees.

9. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to any one of claims 1 to 6, characterized in that: The ventilation hole is arranged at a position close to the bottle mouth, and the pump body is arranged outside the ventilation hole without affecting the ventilation of the ventilation hole.

10. The dropper bottle with dual protection functions of preventing bacteria and oxygen according to any one of claims 1 to 6, characterized in that: A bottle cap is sealed on the dripping column of the trigger, a positioning column that can extend into the liquid outlet hole is extended downward on the inner top wall of the bottle cap, a plurality of positioning ribs are evenly distributed on the circumference of the inner wall of the bottle cap, the positioning ribs rest on the outer wall of the dripping column, and a pressure relief hole is provided on the bottle cap.

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