Anti-pollution eyedrop bottle

Abstract

The application discloses an anti-pollution eye drop bottle and relates to the field of liquid medicine containers. The liquid storage bottle body is provided with a first liquid outlet. The bottle cap is connected to the liquid storage bottle body and forms a containing space, and the inner wall is provided with a first step. The side away from the liquid storage bottle body is provided with a second liquid outlet. The limiting ring is located in the containing space and connected to the liquid storage bottle body at one end. The plugging assembly is located in the limiting ring and at the second liquid outlet at two ends, respectively. The side wall of the partial area of the plugging assembly is attached to the inner wall of the limiting ring and forms a sealing structure. The elastic member is connected to the plugging assembly at one end and connected to the bottle cap or the liquid storage bottle body at the other end. The plugging assembly is provided with a liquid storage cavity. The liquid storage cavity is located between the first step and the first liquid outlet and communicates with the liquid storage cavity. The cross-sectional area of the side of the liquid storage cavity close to the limiting ring is greater than that of the side close to the second liquid outlet. The application can quickly isolate air, realize one-way flow without backflow, and is easy to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medicine containers, and particularly relates to a pollution-preventing eyedrop bottle. BACKGROUND

[0002] With the development of electronic products and the increase of work intensity of some people, the overuse of eyes is more and more common. Therefore, the demand for eyedrops is increasing.

[0003] The existing eyedrop packaging is divided into single-dose packaging and multiple-dose packaging. The common form of single-dose packaging eyedrops is one or one strip, which does not contain a bacteriostatic agent, so as not to cause harm to the eyes. However, the maximum capacity of the conjunctival sac of the human eye is only 20ul. Therefore, the use of single-dose packaging eyedrops is easy to cause the waste of medicine, and its packaging cost is high, the production process is high, and the economic pressure of patients is increased. The bottle opening and bottle body of the multiple-dose packaging eyedrops are communicated, air is easy to enter the bottle body from the bottle opening after opening, air is also sucked into the bottle body when the bottle body is reset after the completion of the extrusion of liquid, and the medicine attached to the bottle opening after use will flow back to the bottle body due to the action of gravity, which is easy to cause the pollution of the medicine in the bottle. SUMMARY

[0004] The pollution-preventing eyedrop bottle provided by the embodiment of the present application solves the technical problem that the medicine attached to the bottle opening will flow back to the bottle body due to the action of gravity after the completion of the extrusion of liquid, which is easy to cause the pollution of the medicine in the bottle.

[0005] The embodiment of the application provides a pollution-proof eye drop bottle, which comprises a liquid storage bottle body provided with a first liquid outlet; a bottle cap connected to the liquid storage bottle body and forming a containing space, and provided with a first step on the inner wall and a second liquid outlet on the side away from the liquid storage bottle body; a limiting ring located in the containing space and connected to the liquid storage bottle body at one end; a plugging assembly located in the limiting ring at one end and at the second liquid outlet at the other end, and the side wall of the partial area of the plugging assembly is attached to the inner wall of the limiting ring to form a sealed structure; and an elastic member connected to the plugging assembly at one end and connected to the bottle cap or the liquid storage bottle body at the other end, and configured to increase the elastic potential when the plugging assembly slides towards the liquid storage bottle body; wherein the plugging assembly is provided with a liquid storage cavity, the liquid storage cavity is located between the first step and the first liquid outlet and is in communication with the liquid storage cavity, the cross-sectional area of the side of the liquid storage cavity close to the limiting ring is greater than that of the side close to the second liquid outlet; when the liquid storage bottle body is inverted and no external force is applied, the plugging assembly is configured to compress the first step, so that the eye drops in the liquid storage cavity are filled; when the liquid storage bottle body is inverted and is extruded by an external force, the eye drops in the liquid storage cavity apply pressure to the plugging assembly, which is directed to the liquid storage bottle body, and the plugging assembly is configured to slide from plugging the second liquid outlet to opening the second liquid outlet.

[0006] In a possible implementation, the plugging assembly comprises a pulling member and a core column; the side wall of the partial area of the pulling member is attached to the inner wall of the limiting ring, and the pulling member is matched with the first step, and the liquid storage cavity is arranged in the pulling member; one end of the core column is connected to the pulling member, and the other end is located at the second liquid outlet, and the core column is configured to slide from plugging the second liquid outlet to opening the second liquid outlet under the driving of the pulling member when the liquid storage bottle body is inverted and is extruded by an external force.

[0007] In a possible implementation, the anti-pollution eyedrop bottle further comprises a first annular boss and a third annular boss arranged circumferentially on the stem, and a separation chamber and a dosing chamber arranged on the inner wall of the bottle cap; the separation chamber is close to the first step, and the first annular boss is located in the separation chamber; the dosing chamber is close to the second liquid outlet, and the third annular boss is located in the dosing chamber; the projection of one side of the stem towards the second liquid outlet gradually decreases along the direction perpendicular to the axial direction of the stem; when the liquid storage bottle is inverted and no external force is applied, the first annular boss and the third annular boss are configured to press the side of the separation chamber close to the dosing chamber and the side of the dosing chamber close to the second liquid outlet, respectively; when the liquid storage bottle is inverted and is pressed by an external force, the first annular boss and the third annular boss are configured to press the side of the separation chamber close to the first step and the side of the dosing chamber close to the separation chamber, respectively; the eyedrops stored in the dosing chamber are a preset drop-in amount for single pressing.

[0008] In a possible implementation, the inner wall of the bottle cap is provided with a second step and a second annular boss; the second step is located between the first step and the first annular boss and overlaps the first annular boss in the projection perpendicular to the axial direction of the stem; when the liquid storage bottle is inverted and is pressed by an external force, the first annular boss is configured to press the second step; the second annular boss is located between the first annular boss and the second liquid outlet; the second annular boss, the inner wall of the bottle cap and the second step form the separation chamber; the projection of the second annular boss and the first annular boss in the axial direction of the stem overlaps; when the liquid storage bottle is inverted and no external force is applied, the second annular boss is configured to be in close contact with the first annular boss.

[0009] In a possible implementation, the inner wall of the bottle cap is provided with a fourth annular boss; the fourth annular boss is located between the third annular boss and the second liquid outlet; the fourth annular boss, the inner wall of the bottle cap and the second annular boss form the dosing chamber; the projection of the fourth annular boss and the third annular boss in the direction perpendicular to the axial direction of the stem overlaps; when the liquid storage bottle is inverted and no external force is applied, the fourth annular boss is configured to be in close contact with the third annular boss.

[0010] In a possible implementation, the elastic member comprises a guide column and a spring; the guide column is arranged between the liquid storage bottle and the plugging assembly, and the spring is sleeved on the guide column and abuts against the liquid storage bottle and the plugging assembly at two ends, respectively.

[0011] In a possible implementation, the anti-pollution eye drop bottle further comprises a pressure balancing assembly; one end of the pressure balancing assembly is in gas communication with the liquid storage bottle body, and the other end is in communication with the outside of the bottle cap, so as to balance the pressure between the liquid storage bottle body and the outside.

[0012] In a possible implementation, the pressure balancing assembly comprises an air inlet hole and a waterproof air inlet valve; the air inlet hole is arranged at the middle part of the plugging assembly and the guide column, and is in communication with the outside; the waterproof air inlet valve is arranged on the side of the liquid storage bottle body facing the bottle cap, and is in communication with the air inlet hole.

[0013] In a possible implementation, the inner wall of the liquid storage cavity near the limiting ring is wavy.

[0014] In a possible implementation, the second annular boss and the fourth annular boss are inclined from outside to inside towards the second liquid outlet; and the first annular boss and the third annular boss are inclined from inside to outside towards the second step.

[0015] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0016] The anti-pollution eye drop bottle provided by the embodiments of the present application comprises a liquid storage bottle body, a bottle cap, a limiting ring, a plugging assembly and an elastic member. When the anti-pollution eye drop bottle is upright, eye drops are stored in the liquid storage bottle body, and the plugging assembly is supported by the elastic member and is in contact with the second liquid outlet, so that the second liquid outlet is sealed. When the anti-pollution eye drop bottle is inverted and no external force is applied, the plugging assembly is still in contact with the second liquid outlet under the action of its own gravity, so that the eye drops cannot flow out. At this time, the eye drops flow into the liquid storage cavity through the first liquid outlet of the liquid storage bottle body until the liquid storage cavity is filled. When the anti-pollution eye drop bottle is inverted and the liquid storage bottle body is extruded by an external force, the pressure in the entire anti-pollution eye drop bottle increases, so that the eye drops in the liquid storage cavity exert a pressure on the plugging assembly, the elastic member is extruded, and the plugging assembly is driven to move upward by a certain distance, so that the second liquid outlet is opened, thereby causing the eye drops to be used to flow out through the second liquid outlet. When the extrusion force on the liquid storage bottle body is removed, the pressure in the entire anti-pollution eye drop bottle decreases, and the elastic member returns to the initial state, thereby pushing the plugging assembly to reset, so that the second liquid outlet is sealed. When the anti-pollution eye drop bottle is upright again, the plugging assembly is in contact with the second liquid outlet under the support of the elastic member, so as to maintain the sealing state of the second liquid outlet. The anti-pollution eye drop bottle can be repeatedly used in this way. Therefore, the anti-pollution eye drop bottle can be quickly isolated from the air, realize one-way flow without backflow, and thus can avoid the backflow of eye drops attached to the bottle cap into the bottle body. The anti-pollution eye drop bottle is simple to operate and has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an anti-pollution eye drop bottle provided in an embodiment of this application;

[0019] Figure 2 for Figure 1 A cross-sectional view of plane AA in the image;

[0020] Figure 3 A partial structural schematic diagram of an anti-pollution eye drop bottle provided in an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the core column provided in an embodiment of this application.

[0022] Reference numerals in the attached drawings: 1-Liquid storage bottle body; 11-First liquid outlet; 12-External thread; 2-Bottle cap; 21-Second liquid outlet; 22-First step; 23-Weight reduction hole; 24-Internal thread; 25-Second step; 26-Second annular boss; 27-Fourth annular boss; 28-Annular cavity; 3-Limiting ring; 4-Elastic element; 41-Guide post; 42-Spring; 5-Sealing assembly; 51-Traction element; 511-First groove; 512-Second groove; 52-Core post; 53-Liquid storage cavity; 6-First annular boss; 7-Isolation chamber; 8-Quantitative chamber; 9-Balancing pressure assembly; 91-Air inlet; 92-Waterproof air inlet valve; 10-Third annular boss. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] The embodiments of the present application provide an anti-pollution eye drop bottle, such as Figures 1 to 4The anti-pollution eye drop bottle shown in the figure includes a liquid storage bottle body 1, a bottle cap 2, a limiting ring 3, a plugging assembly 5 and an elastic member 4. The liquid storage bottle body 1 is provided with a first liquid outlet 11. The bottle cap 2 is connected to the liquid storage bottle body 1 and forms a containing space, and the inner wall is provided with a first step 22, and the side away from the liquid storage bottle body 1 is provided with a second liquid outlet 21. Specifically, the first step 22 cooperates with the plugging assembly 5. The limiting ring 3 is located in the containing space and one end is connected to the liquid storage bottle body 1. On the one hand, the limiting ring 3 can prevent the plugging assembly 5 from deviating during sliding; on the other hand, the limiting ring 3 forms a sealing structure with the plugging assembly 5 and the liquid storage bottle body 1, so that when the liquid storage bottle body 1 is inverted and subjected to external pressure, the plugging assembly 5 can move towards the liquid storage bottle body 1, thereby opening the second liquid outlet 21. The plugging assembly 5 has two ends located in the limiting ring 3 and at the second liquid outlet 21 respectively, and the side wall of the partial area of the plugging assembly 5 is attached to the inner wall of the limiting ring 3 and forms a sealing structure; and the elastic member 4 has one end connected to the plugging assembly 5 and the other end connected to the bottle cap 2 or the liquid storage bottle body 1, and is configured to increase the elastic potential energy when the plugging assembly 5 slides towards the liquid storage bottle body 1. The plugging assembly 5 is provided with a liquid storage cavity 53 located between the first step 22 and the first liquid outlet 11 and communicating with the liquid storage cavity 53, and the cross-sectional area of the side of the liquid storage cavity 53 close to the limiting ring 3 is greater than that of the side close to the second liquid outlet 21. When the liquid storage bottle body 1 is inverted and no external force is applied, the plugging assembly 5 is configured to press the first step 22, so that the eye drops in the liquid storage cavity 53 are filled; when the liquid storage bottle body 1 is inverted and subjected to external pressure, the eye drops in the liquid storage cavity 53 exert a pressure on the plugging assembly 5 directed towards the liquid storage bottle body 1, and the plugging assembly 5 is configured to slide from plugging the second liquid outlet 21 to opening the second liquid outlet 21.

[0026] As shown in Figure 2 , one first liquid outlet 11 can be provided. Of course, the embodiments of the present application are not limited to one first liquid outlet 11, and one first liquid outlet 11 can be provided on the left and right sides, respectively, and communicate with the liquid storage cavity 53.

[0027] In one implementation manner of the embodiments of the present application, continuing to refer to Figure 2 , the elastic member 4 is located between the liquid storage bottle body 1 and the plugging assembly 5, specifically, one end of the elastic member 4 is connected to the plugging assembly 5, and the other end is connected to the liquid storage bottle body 1. Of course, the present application is not limited to the above structure, and the elastic member 4 can also be located in the liquid storage cavity 53, specifically, one end of the elastic member 4 is connected to the plugging assembly 5, and the other end is connected to the bottle body, and can increase the elastic potential energy when the plugging assembly 5 slides towards the liquid storage bottle body 1.

[0028] As shown in Figure 3As shown, the cross-sectional area of the liquid storage cavity 53 near the limiting ring 3 is larger than that near the second liquid outlet 21, so that the eye drops stored in the liquid storage cavity 53 are subjected to a force greater than their own gravity towards the liquid storage bottle body 1, thereby pushing the plugging assembly 5 towards the liquid storage bottle body 1, and in turn opening the second liquid outlet 21, so that the eye drops drip into the patient's eye.

[0029] The working principle of the anti-pollution eye drop bottle is as follows: when the anti-pollution eye drop bottle is upright, the eye drops are stored in the liquid storage bottle body 1, and the plugging assembly 5 is supported by the elastic member 4 and abuts against the second liquid outlet 21, so that the second liquid outlet 21 is sealed; when the anti-pollution eye drop bottle is inverted and no external force is applied, the plugging assembly 5 still abuts against the second liquid outlet 21 under the action of its own gravity, so that the eye drops cannot flow out, and at this time the eye drops flow into the liquid storage cavity 53 through the first liquid outlet 11 of the liquid storage bottle body 1 until the liquid storage cavity 53 is filled; when the anti-pollution eye drop bottle is inverted and the liquid storage bottle body 1 is subjected to external pressure, the pressure in the entire anti-pollution eye drop bottle increases, so that the eye drops in the liquid storage cavity 53 exert pressure on the plugging assembly 5, the elastic member 4 is extruded, and the plugging assembly 5 is driven to move upward by a certain distance, so that the second liquid outlet 21 is opened, thereby causing the eye drops to be used to flow out through the second liquid outlet 21; when the extrusion force on the liquid storage bottle body 1 is removed, the pressure in the entire anti-pollution eye drop bottle decreases, the elastic member 4 returns to the initial state, thereby pushing the plugging assembly 5 to reset, so that the second liquid outlet 21 is sealed; when the anti-pollution eye drop bottle is upright again, the plugging assembly 5 abuts against the second liquid outlet 21 under the support of the elastic member 4, maintaining the sealing state of the second liquid outlet 21, and the cycle is repeated. Therefore, the embodiment of the application can quickly isolate from the air, realize one-way flow without backflow, and in turn avoid the backflow of the eye drops attached to the bottle cap 2 into the liquid storage bottle body 1, and the anti-pollution eye drop bottle is easy to operate and has strong practicality.

[0030] As shown in Figure 2 and Figure 3 The plugging assembly 5 includes a traction member 51 and a core column 52. The side wall of a part of the traction member 51 is attached to the inner wall of the limiting ring 3, and the traction member 51 cooperates with the first step 22, and the traction member 51 is provided with the liquid storage cavity 53. One end of the core column 52 is connected to the traction member 51, and the other end is located at the second liquid outlet 21, and the core column 52 is configured to slide from plugging the second liquid outlet 21 to opening the second liquid outlet 21 under the driving of the traction member 51 when the liquid storage bottle body 1 is inverted and subjected to external pressure.

[0031] Specifically, as shown in Figure 4As shown, the core column 52 is conical towards the side of the second liquid outlet 21, so that the eye drops to be used can be accurately dropped into the position where it needs to be dropped. Of course, the embodiment of the present application is not limited to the above structure, and the core column 52 can also be a pyramid structure.

[0032] Further, the traction member 51 is provided with a second groove 512 towards the side of the core. The core is clamped in the second groove 512, which is convenient for processing and installation, so that the structure of the anti-pollution eye drop bottle is more stable.

[0033] Continuing to refer to Figure 3 As shown, the anti-pollution eye drop bottle further comprises a first annular boss 6 and a third annular boss 10 arranged circumferentially on the core column 52, and a separation chamber 7 and a metering chamber 8 arranged on the inner wall of the bottle cap 2. The separation chamber 7 is close to the first step 22, and the first annular boss 6 is located in the separation chamber 7. The metering chamber 8 is close to the second liquid outlet 21, and the third annular boss 10 is located in the metering chamber 8. The side of the core column 52 towards the second liquid outlet 21 gradually decreases along the projection perpendicular to the axial direction thereof. When the liquid storage bottle body 1 is inverted and no external force is applied, the first annular boss 6 and the third annular boss 10 are respectively configured to press the side of the separation chamber 7 close to the metering chamber 8 and the side of the metering chamber 8 close to the second liquid outlet 21; when the liquid storage bottle body 1 is inverted and is pressed by an external force, the first annular boss 6 and the third annular boss 10 are respectively configured to press the side of the separation chamber 7 close to the first step 22 and the side of the metering chamber 8 close to the separation chamber 7. The eye drops stored in the metering chamber 8 are the preset drop amount for a single pressing.

[0034] It should be noted that when the liquid storage bottle body 1 is inverted and is pressed by an external force, the first annular boss 6 moves towards the liquid storage bottle body 1 direction under the driving of the core column 52, so as to press the side of the separation chamber 7 close to the first step 22, thereby dividing the eye drops into two parts, one part is the eye drops in the liquid storage bottle body 1 and the liquid storage cavity 53, and the other part is the eye drops in the separation chamber 7 and the metering chamber 8. Therefore, the anti-pollution eye drop bottle provided by the embodiment of the present application is always not connected with the outside world during use; when the eye drops are used, only the eye drops in the separation chamber 7 and the metering chamber 8 are dropped into the eyes, which avoids the pollution caused by the communication between the unused eye drops and the outside world, thereby avoiding the addition of preservatives to the eye drops in the anti-pollution eye drop bottle, so as to avoid the pollution of impurities in the outside world to the eye drops in the storage bottle body.

[0035] The bottle body and the bottle nozzle of the existing eye drop bottle are straight cylinders. When the eye drops are dropped, the eye drops are squeezed out of the bottle opening by pinching the bottle with the hand. The flow of the eye drops is completely controlled by the force of pinching the bottle body with the hand, which is easy to cause the eye drops to be dropped in excess. Especially for some expensive eye drops, not only does it cause the waste of eye drops and increase the treatment cost of patients, but also it may cause adverse reactions due to the excessive dropping of eye drops, so that the patients develop other diseases or discomfort. Therefore, the embodiments of the present application are configured by the isolation chamber 7 and the quantitative chamber 8, so that the eye drops to be used can be quantitatively flowed out through the quantitative chamber 8, thereby the amount of medication each time can be accurately controlled, and the waste of eye drops is avoided.

[0036] As shown in Figure 3 The inner wall of the bottle cap 2 is provided with a second step 25 and a second annular boss 26. The second step 25 is located between the first step 22 and the first annular boss 6 and overlaps the first annular boss 6 in the projection perpendicular to the axial direction of the stem 52. When the liquid storage bottle body 1 is inverted and subjected to external pressure, the first annular boss 6 is configured to compress the second step 25, and the second annular boss 26 is located between the first annular boss 6 and the second liquid outlet 21. The second annular boss 26, the inner wall of the bottle cap 2 and the second step 25 form the isolation chamber 7. The second annular boss 26 and the first annular boss 6 overlap in the projection in the axial direction of the stem 52. When the liquid storage bottle body 1 is inverted and no external force is applied, the second annular boss 26 is configured to be attached to the first annular boss 6.

[0037] In an implementation manner of the embodiments of the present application, the inner wall of the bottle cap 2 is provided with a fourth annular boss 27. The fourth annular boss 27 is located between the third annular boss 10 and the second liquid outlet 21. The fourth annular boss 27, the inner wall of the bottle cap 2 and the second annular boss 26 form the quantitative chamber 8. The fourth annular boss 27 and the third annular boss 10 overlap in the projection perpendicular to the axial direction of the stem 52. When the liquid storage bottle body 1 is inverted and no external force is applied, the fourth annular boss 27 is configured to be attached to the third annular boss 10.

[0038] It should be noted that when the liquid storage bottle 1 is inverted and no external force is applied, the core column 52 is attached to the second liquid outlet 21, and the side wall of the core column 52 is pressed against the second step 25, so that the eye drops are stored in the liquid storage bottle 1 and the liquid storage cavity 53; when the liquid storage bottle 1 is inverted and subjected to external force, at this time, the second liquid outlet 21 and the core column 52 are no longer attached, and the eye drops in the liquid storage cavity 53 flow into the isolation chamber 7 due to the action of gravity, and then the eye drops are pushed into the quantitative chamber 8 through the second annular boss 26, and then flow into the patient's eye through the fourth annular boss 27. The second annular boss 26 and the fourth annular boss 27 can act as a buffer for the eye drops to be used, so that the eye drops to be used will not directly drip into the eye to increase the discomfort of the patient. When the extrusion force on the liquid storage bottle 1 is removed, the first annular boss 6 and the third annular boss 10 are reset and attached to the second annular boss 26 and the fourth annular boss 27, and the second liquid outlet 21 and the core column 52 are attached, so that the eye drops will not flow out.

[0039] As shown in Figure 2 The elastic member 4 includes a guide column 41 and a spring 42. The guide column 41 is arranged between the liquid storage bottle 1 and the blocking assembly 5, and the spring 42 is sleeved on the guide column 41, and the two ends thereof abut against the liquid storage bottle 1 and the blocking assembly 5 respectively. When the liquid storage bottle 1 is inverted and subjected to external force, the spring 42 can increase the elastic potential when the blocking assembly 5 slides towards the liquid storage bottle 1; when the liquid storage bottle 1 is inverted and the external force is removed, the spring 42 gradually returns to the initial state, thereby driving the blocking assembly 5 to reset.

[0040] Further, the bottle cap 2 is provided with a weight-reducing hole 23 between the first step 22 and the second step 25, so that the entire structure is more lightweight.

[0041] In an implementation manner of the embodiment of the application, the core column 52 is a cylindrical body between the first step 22 and the second step 25, the core column 52 is a conical body between the second step 25 and the second liquid outlet 21, and the cross-sectional area of the cylindrical body is smaller than the area of the bottom surface of the conical body, so that the annular cavity 28 can be formed. When the liquid storage bottle 1 is inverted and subjected to external force, the eye drops in the liquid storage cavity 53 first enter the annular cavity 28 and then flow into the isolation chamber 7, which can play a buffering role.

[0042] Further, the blocking assembly 5 is provided with a first recess 511 on the side close to the limiting ring 3, and the guide column 41 is located in the first recess 511. This can make the stress on the guide column 41 better during the movement of the blocking assembly 5, so that the guide column 41 will not deviate and the structural stability is better.

[0043] Furthermore, the anti-contamination eye drop bottle also includes a pressure balancing component 9. One end of the pressure balancing component 9 is connected to the gas in the liquid storage bottle 1, and the other end is connected to the outside of the bottle cap 2, so as to balance the pressure between the liquid storage bottle 1 and the outside environment. The pressure balancing component 9 can replenish air to the liquid storage bottle 1 from the external environment to balance the pressure between the liquid storage bottle 1 and the outside environment.

[0044] In one implementation of this application, the pressure balancing assembly 9 includes an air inlet 91 and a waterproof air inlet valve 92. The air inlet 91 is located in the middle of the sealing assembly 5 and the guide post 41 and communicates with the outside. The waterproof air inlet valve 92 is located on the side of the liquid storage bottle 1 facing the bottle cap 2 and communicates with the air inlet 91.

[0045] like Figure 3 As shown, the inner wall of the reservoir 53 near the limiting ring 3 is wavy, which can increase the contact area of ​​the eye drops and make the reservoir 53 less prone to damage when subjected to force toward the reservoir bottle 1.

[0046] The second annular protrusion 26 and the fourth annular protrusion 27 are inclined from the outside inward toward the second liquid outlet 21. The first annular protrusion 6 and the third annular protrusion 10 are inclined from the inside outward toward the second step 25.

[0047] Furthermore, such as Figure 3 As shown, the liquid storage bottle 1 has an external thread 12 on the side facing the bottle cap 2, and the bottle cap 2 has an internal thread 24 corresponding to the external thread 12. The liquid storage bottle 1 and the bottle cap 2 are threadedly connected. Of course, the embodiments of this application are not limited to threaded connection, and the liquid storage bottle 1 and the bottle cap 2 are snap-fitted together.

[0048] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0049] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. An anti-contamination eye drop bottle, characterized by, The utility model relates to a bottle cap and a bottle body for eye drops, comprising: a bottle body (1) having a first liquid outlet (11); a bottle cap (2) connected to the bottle body (1) and forming a containing space, and having a first step (22) on the inner wall and a second liquid outlet (21) on the side away from the bottle body (1); a limiting ring (3) located in the containing space and connected to the bottle body (1) at one end; a sealing assembly (5) located in the limiting ring (3) and at the second liquid outlet (21) at two ends, and having a side wall in partial area in contact with the inner wall of the limiting ring (3) and forming a sealing structure; and a resilient member (4) connected to the sealing assembly (5) at one end and connected to the bottle cap (2) or the bottle body (1) at the other end, and configured to increase the elastic potential when the sealing assembly (5) slides towards the bottle body (1); wherein the sealing assembly (5) is provided with a liquid storage cavity (53) located between the first step (22) and the first liquid outlet (11) and in communication with the liquid storage cavity (53), and the cross-sectional area of the side of the liquid storage cavity (53) close to the limiting ring (3) is greater than that of the side close to the second liquid outlet (21); when the bottle body (1) is inverted and no external force is applied, the sealing assembly (5) is configured to press the first step (22) so that the eye drops in the liquid storage cavity (53) are filled; when the bottle body (1) is inverted and subjected to external pressure, the eye drops in the liquid storage cavity (53) exert a pressure on the sealing assembly (5) directed towards the bottle body (1), and the sealing assembly (5) is configured to slide from sealing the second liquid outlet (21) to opening the second liquid outlet (21).

2. The anti-contamination eyedrop bottle of claim 1, wherein The sealing assembly (5) comprises a pulling member (51) and a core column (52); the side wall of the pulling member (51) in partial area is in contact with the inner wall of the limiting ring (3), and the pulling member (51) cooperates with the first step (22), and the liquid storage cavity (53) is arranged in the pulling member (51); one end of the core column (52) is connected to the pulling member (51), and the other end is located at the second liquid outlet (21), and the core column (52) is configured to slide from sealing the second liquid outlet (21) to opening the second liquid outlet (21) under the driving of the pulling member (51) when the bottle body (1) is inverted and subjected to external pressure.

3. The anti-contamination eyedrop bottle of claim 2, wherein Further comprising a first annular boss (6) and a third annular boss (10) arranged circumferentially on the core column (52), and an isolation chamber (7) and a dosing chamber (8) arranged on the inner wall of the bottle cap (2); the isolation chamber (7) is close to the first step (22), and the first annular boss (6) is located in the isolation chamber (7); the dosing chamber (8) is close to the second liquid outlet (21), and the third annular boss (10) is located in the dosing chamber (8). The projection of the core column (52) on the side of the second liquid outlet (21) in the direction perpendicular to the axial direction gradually decreases; When the liquid storage bottle body (1) is inverted and no external force is applied, the first annular boss (6) and the third annular boss (10) are respectively configured to compress the side of the isolation chamber (7) close to the dosing chamber (8) and the side of the dosing chamber (8) close to the second liquid outlet (21); When the liquid storage bottle body (1) is inverted and subjected to external force, the first annular boss (6) and the third annular boss (10) are respectively configured to compress the side of the isolation chamber (7) close to the first step (22) and the side of the dosing chamber (8) close to the isolation chamber (7); The eye drops stored in the dosing chamber (8) are a preset drop-in amount for single pressing.

4. The anti-contamination eyedrop bottle of claim 3, wherein The inner wall of the bottle cap (2) is provided with a second step (25) and a second annular boss (26); The second step (25) is located between the first step (22) and the first annular boss (6) and overlaps the first annular boss (6) in the projection perpendicular to the axial direction of the core column (52); When the liquid storage bottle body (1) is inverted and subjected to external force, the first annular boss (6) is configured to compress the second step (25); The second annular boss (26) is located between the first annular boss (6) and the second liquid outlet (21); The second annular boss (26), the inner wall of the bottle cap (2) and the second step (25) form the isolation chamber (7); The second annular boss (26) and the first annular boss (6) overlap in the projection of the axial direction of the core column (52); When the liquid storage bottle body (1) is inverted and no external force is applied, the second annular boss (26) is configured to fit the first annular boss (6).

5. The anti-contamination eyedrop bottle of claim 4, wherein The inner wall of the bottle cap (2) is provided with a fourth annular boss (27); The fourth annular boss (27) is located between the third annular boss (10) and the second liquid outlet (21); The fourth annular boss (27), the inner wall of the bottle cap (2) and the second annular boss (26) form the dosing chamber (8); The fourth annular boss (27) and the third annular boss (10) overlap in the projection perpendicular to the axial direction of the core column (52); When the liquid storage bottle body (1) is inverted and no external force is applied, the fourth annular boss (27) is configured to fit the third annular boss (10).

6. The anti-contamination eyedrop bottle of claim 1, wherein The elastic member (4) includes a guide column (41) and a spring (42); The guide column (41) is arranged between the liquid storage bottle body (1) and the plugging assembly (5), and the spring (42) is sleeved on the guide column (41), and the two ends thereof are respectively abutted against the liquid storage bottle body (1) and the plugging assembly (5).

7. The anti-contamination eyedrop bottle of claim 6, wherein It also includes a pressure balancing assembly (9); One end of the balance pressure assembly (9) is in communication with the gas in the liquid storage bottle body (1), and the other end is in communication with the outside of the bottle cap (2) to balance the pressure between the liquid storage bottle body (1) and the outside.

8. The anti-contamination eyedrop bottle of claim 7, wherein The balance pressure assembly (9) comprises an air inlet hole (91) and a waterproof air inlet valve (92). The air inlet hole (91) is arranged at the middle part of the plugging assembly (5) and the guide column (41) and is in communication with the outside. The waterproof air inlet valve (92) is arranged on the side of the liquid storage bottle body (1) facing the bottle cap (2) and is in communication with the air inlet hole (91).

9. The anti-contamination eyedrop bottle of claim 1, wherein The inner wall of the liquid storage cavity (53) close to the limiting ring (3) is wavy.

10. The anti-contamination eyedrop bottle of claim 5, wherein The second annular boss (26) and the fourth annular boss (27) are inclined from outside to inside towards the second liquid outlet (21). The first annular boss (6) and the third annular boss (10) are inclined from inside to outside towards the second step (25).

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