Anti-opening eye drop device

Abstract

The utility model relates to an anti-opening eye drop device which comprises a composite outer cover, a composite inner cover, an inner plug and a bottle body. The composite outer cover and the composite inner cover are of an integrated structure, the composite outer cover is used for limiting the composite inner cover in the composite outer cover, a rotating pair and a locking structure are arranged between the composite outer cover and the composite inner cover, and the composite outer cover is used for driving the composite inner cover to rotate so that the composite inner cover and the bottle body can be separated or locked. The locking structure is used for continuously locking the composite outer cover and the composite inner cover or intermittently locking the composite outer cover and the composite inner cover, so that the composite outer cover and the composite inner cover are relatively static; the locking structure is used for continuously unlocking the composite outer cover and the composite inner cover, so that the composite outer cover and the composite inner cover rotate relatively; the composite inner cover is used for sealing the inner plug, the inner plug is used for discharging liquid from the bottle body, and the bottle body is used for storing liquid; threads are arranged between the composite inner cover and the bottle body in a matched mode and used for locking the composite inner cover and the bottle body after screwing and separating the composite inner cover and the bottle body after unscrewing.

Description

Technical Field

[0001] This utility model belongs to the field of dropper container technology, specifically relating to an eye drop device that is tamper-proof. Background Technology

[0002] In the field of dropper containers, common ones include eye drops or drops for oral administration. These medications generally need to be sealed to prevent air exposure and to facilitate use. However, medications are generally intended for adults. Minors, especially children, may easily unscrew small or sealed containers due to their curiosity, leading to medication failure, waste, or even misuse, causing even worse problems.

[0003] Commercially available eye drops only have basic anti-theft features and do not have child-proof features. Therefore, eye drop devices can be easily opened by young patients or patients with impaired cognitive abilities, which may lead to safety hazards such as misuse or overuse and pose certain risks.

[0004] The aforementioned medicine dropper containers lack child safety measures or effective safety measures to prevent accidental use, posing a safety hazard and requiring improvement. Utility Model Content

[0005] The purpose of this utility model is to provide an eye drop device that is tamper-evident, comprising a composite outer cap, a composite inner cap, an inner stopper, and a bottle body;

[0006] The composite outer cap and the composite inner cap are designed as a single unit. The composite outer cap is used to limit the composite inner cap inside the composite outer cap. A rotating pair and a locking structure are provided between the composite outer cap and the composite inner cap. The composite outer cap is used to drive the composite inner cap to rotate so that the composite inner cap and the bottle body can be separated or locked.

[0007] The locking structure is used to continuously lock the composite outer cover and the composite inner cover or intermittently lock the composite outer cover and the composite inner cover, so that the composite outer cover and the composite inner cover are relatively stationary.

[0008] The locking structure is used to continuously unlock the composite outer cover and the composite inner cover, allowing the composite outer cover and the composite inner cover to rotate relative to each other.

[0009] The composite inner cap is used to seal the inner plug, the inner plug is used for dispensing liquid from the bottle, and the bottle is used to store liquid.

[0010] The composite inner cap and the bottle body are fitted with threads, which are used to lock the composite inner cap and the bottle body when tightened and to separate the composite inner cap and the bottle body when loosened.

[0011] The technical features of the relevant components in this application are as follows:

[0012] Composite outer cover: The composite inner cover is fixed inside it, and together with the composite inner cover, it achieves the child-proof opening function;

[0013] Composite inner cover: Fixed inside the composite outer cover, together they achieve the child-proof opening function, and there is an anti-theft ring at the bottom, which has an anti-theft function;

[0014] Inner stopper: The liquid dispensing component, fixed to the bottle body;

[0015] Bottle: A container for holding liquid medicine;

[0016] This application proposes a novel structure for an eye drop bottle. Compared to conventional eye drop devices, the outer cap is divided into two parts: a composite outer cap and a composite inner cap. During use, the eye drop device can only be opened by pressing down on the composite outer cap while simultaneously rotating it counterclockwise. This process effectively prevents young patients and those with cognitive impairment from accidentally opening the eye drop device, reducing the risk of misuse.

[0017] Press down on the composite outer cover and simultaneously unscrew it counterclockwise. The direction of rotation can be adjusted according to the structure, thus enabling unlocking and locking in different directions.

[0018] The composite outer cap and composite inner cap work together to achieve a child-proof opening function, while the composite inner cap works together with the eye drop bottle structure to achieve an anti-theft function, and the anti-theft ring does not fall off. This application has both child-proof opening and anti-theft functions, making it safer to use than eye drop products on the market. It is feasible to apply it to quantitative eye drop devices.

[0019] The technical solution provided in this application also has the following technical features:

[0020] Preferably, in one embodiment of this application, the locking structure includes a wedge-shaped post I of the composite outer cover and a wedge-shaped post II of the composite inner cover. Both wedge-shaped post I and wedge-shaped post II include at least two contact surfaces. After the wedge-shaped post I and wedge-shaped post II contact each other through their corresponding contact surfaces, the locking and unlocking of the composite outer cover and the composite inner cover are completed.

[0021] Preferably, in one embodiment of this application, wedge-shaped post I is disposed on the inner wall of the top of the composite outer cover, and wedge-shaped post II is disposed on the top surface of the composite inner cover.

[0022] Preferably, in one embodiment of this application, one of the contact surfaces of wedge-shaped post I and wedge-shaped post II are fitted together, forming at least one contact surface I after contact, and contact surface I is a plane; the other contact surface of wedge-shaped post I and wedge-shaped post II is fitted together, forming at least one contact surface II after contact, and contact surface II is a plane;

[0023] The bonding surface I and bonding surface II intersect.

[0024] Preferably, in one embodiment of this application, the bonding surface I or bonding surface II passes through an axis of rotation of the composite outer cap and composite inner cap relative to the bottle body.

[0025] Preferably, in one embodiment of this application, the inner wall of the composite outer cover is provided with guide ribs, which are used to limit the composite inner cover and guide the composite outer cover and the composite inner cover to slide relative to each other along the central axis.

[0026] Preferably, in one embodiment of this application, the outer surface of the composite cover is provided with anti-slip texture.

[0027] Preferably, in one embodiment of this application, the upper end face of the composite outer cover is provided with an indicator protrusion, which is used to indicate the unlocking and locking operations of the locking structure between the composite outer cover and the composite inner cover.

[0028] Preferably, in one embodiment of this application, the inner buckle line I provided on the composite outer cover corresponds to the outer buckle line I of the matching composite inner cover. The composite inner cover limits the inner buckle line I through the outer buckle line I, so that the composite inner cover is limited inside the composite outer cover.

[0029] Preferably, in one embodiment of this application, a plunger is provided at the inner top of the composite inner cover, and the plunger is used to insert into the liquid outlet hole to form a seal;

[0030] The liquid outlet of the inner plug is interference-fitted with the plunger of the composite inner cap to prevent air contamination of the liquid and to prevent leakage of the liquid.

[0031] Preferably, in one embodiment of this application, a transition limiting ring is provided on the outer surface of the middle part of the composite inner cover, and the transition limiting ring is matched with a guide rib to guide and limit the relative sliding of the composite outer cover and the composite inner cover.

[0032] Preferably, in one embodiment of this application, an anti-theft ring is provided at the lower end of the composite inner cap, and the anti-theft ring is limited on the bottle body for initial opening and separation of the composite inner cap and the bottle body;

[0033] When the composite outer cap rotates the composite inner cap, the connection point on the composite inner cap breaks, and the anti-theft ring should remain on the bottle.

[0034] The anti-theft ring is interference-fitted to the bottle body, and there are also limiters at both the top and bottom to ensure that the anti-theft ring will not fall off during use.

[0035] Preferably, in one embodiment of this application, a limiting ring is provided on the bottle body; the limiting ring is a raised ring, and the anti-theft ring has an inner groove inside, the inner groove of the anti-theft ring is embedded in the limiting ring, and the anti-theft ring is limited on the limiting ring.

[0036] Preferably, in one embodiment of this application, a one-time weak connection is provided below the outer buckle line I and between the anti-theft ring, which is used to separate the anti-theft ring from the composite inner cap. Whether the one-time weak connection of the anti-theft ring breaks or not, so that the anti-theft ring remains on the bottle, indicates whether the product is in use.

[0037] Preferably, in one embodiment of this application, the inner plug is inserted into the outlet of the bottle.

[0038] Preferably, in one embodiment of this application, the inner plug is provided with an inner buckle II in the middle, which is matched with an outer buckle II corresponding to the bottle body, limiting the inner plug on the bottle body;

[0039] The inner stopper achieves a sealed relationship with the eye drop bottle through the interference fit of the inner and outer thread II, preventing air contamination of the medicine and leakage.

[0040] Preferably, in one embodiment of this application, the liquid outlet is connected to the inner port of the bottle body through the inner plug, and the cross-sectional area of ​​the passage between the liquid outlet and the inner port gradually decreases.

[0041] Preferably, in one embodiment of this application, the inner wall of the end of the inner plug that extends into the bottle body is provided with reinforcing ribs to improve the structural strength of the product.

[0042] Preferably, in one embodiment of this application, the composite outer cover is a cylinder with a uniform shape from top to bottom, or a conical cylinder with a small top.

[0043] Preferably, in one embodiment of this application, the method of use is as follows:

[0044] Squeeze the composite outer cap or composite inner cap, bring the composite outer cap and composite inner cap close together, rotate the composite outer cap, and under the action of bonding surface I or bonding surface II, the composite outer cap and composite inner cap rotate as a whole, so that the threads of the composite inner cap and the bottle body are loosened or tightened.

[0045] Since the angles between the mating surfaces I and II and the rotation direction are not the same, the sliding friction forces that may be generated are also different. Therefore, one direction is relatively less labor-intensive, and the required extrusion force and rotation force are relatively small. This is because there is no need for the extrusion friction between the composite outer cover and the composite inner cover in this direction. Instead, the rotation is directly driven by the abutment and extrusion of the wedge-shaped pillars I and II. That is, the tangent of the rotation direction is perpendicular to the abutment plane, which is a working condition in which vertical surfaces abut against each other.

[0046] The other direction is relatively more strenuous, requiring greater compressive and rotational forces. This is because the component of the compressive force drives the rotation, and the frictional force is related to the pressure on the two surfaces. This makes it more strenuous than the previous case, namely the working condition of two inclined planes in contact.

[0047] Without squeezing the composite outer cover or the composite inner cover, and without bringing the composite outer cover and the composite inner cover close together, rotate the composite outer cover, and the composite outer cover and the composite inner cover will rotate and slide relative to each other.

[0048] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0049] This application proposes a novel structure that combines child-proof opening and anti-theft functions, and the anti-theft ring does not fall off after the product is activated.

[0050] Child-proof opening function is achieved through the cooperation between the wedge-shaped pillars and wedge-shaped grooves on the composite outer cover and the composite inner cover.

[0051] Product structure: The composite outer cap and composite inner cap work together to achieve child-proof opening function, and the composite inner cap works together with the eye drop bottle structure to achieve anti-theft function, and the anti-theft ring does not fall off;

[0052] A child-proof and anti-theft eye drop device: safer to use than other eye drop products on the market;

[0053] 1. This application overcomes the defect of traditional eye drop bottle caps being easily opened by children by incorporating a press-locking structure, thus achieving the technical effect of improving child safety protection;

[0054] 2. This application overcomes the defect that a single cap structure cannot effectively control the rotational opening and closing by using a rotating joint structure of a composite outer cap and a composite inner cap, and achieves the technical effect of preventing misoperation and being easy for adults to use.

[0055] 3. This application overcomes the shortcomings of existing eye drop bottle cap protection mechanisms, such as being single and lacking dual verification, by using a combination design of pressing to unlock and rotating to open, thus achieving the technical effect of preventing accidental opening and misuse;

[0056] 4. This application overcomes the problem of insufficient sealing of ordinary bottle caps by using the threaded fit between the composite inner cap and the bottle body, and achieves the technical effect of ensuring the sealed storage of medicine liquid and avoiding contamination and volatilization;

[0057] 5. This application overcomes the defects of traditional eye drop bottle caps being easy to fall off or loosen by using a composite outer cap limiting structure, and achieves the technical effect of stable structure and long service life. Attached Figure Description

[0058] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0059] Figure 1This is a front view of an anti-opening eye drop device according to the present invention;

[0060] Figure 2 This is a top view of an eye drop device designed to prevent opening according to the present invention;

[0061] Figure 3 This is a left view of an anti-opening eye drop device according to the present invention;

[0062] Figure 4 This is a perspective view of an eye drop device designed to prevent opening according to the present invention;

[0063] Figure 5 for Figure 1 AA section view;

[0064] Figure 6 This is an exploded view of an eye drop device designed to prevent opening according to this utility model;

[0065] Figure 7 This is a partial cross-sectional view of an anti-opening eye drop device according to the present invention;

[0066] Figure 8 This is a perspective view of the composite outer cover and composite inner cover of an anti-opening eye drop device according to the present invention.

[0067] Figure 9 This is a perspective view of the composite inner cover of an anti-opening eye drop device according to the present invention.

[0068] Figure 10 This is a perspective view of the composite outer cover, composite inner cover, and inner plug of an anti-opening eye drop device according to the present invention.

[0069] Figure 11 A three-dimensional comparison of two composite outer caps for an anti-opening eye drop device according to this utility model. Figure 1 ;

[0070] Figure 12 A three-dimensional comparison of two composite outer caps for an anti-opening eye drop device according to this utility model. Figure 2 ;

[0071] Figure 13 This is a three-dimensional sectional view of the inner plug of an anti-opening eye drop device according to the present invention.

[0072] Figure 14 This is a perspective view of the bottle body of an eye drop device that is designed to prevent opening according to this utility model;

[0073] Figure 15 for Figure 6 Color images;

[0074] Figure 16for Figure 7 Color images;

[0075] Figure 17 for Figure 8 Color images;

[0076] Figure 18 for Figure 9 Color images;

[0077] Figure 19 for Figure 10 Color images;

[0078] Figure 20 for Figure 11 Color images;

[0079] Figure 21 for Figure 12 Color images;

[0080] Figure 22 for Figure 13 Color images;

[0081] Figure 23 for Figure 14 Color images;

[0082] Figure 24 This invention provides an explanation of the opening principle of an anti-opening eye drop device.

[0083] Figure 25 This is an instruction manual for the use of an eye drop device that is designed to prevent opening.

[0084] Figure 26 This invention provides instructions for using a pressure-to-unlock eye drop device that prevents it from being opened.

[0085] Figure 27 The Chinese description corresponds to the indicator protrusion of the anti-opening eye drop device of this utility model;

[0086] Figure 28 This is an instruction manual for the use of the anti-theft ring of an eye drop device that is designed to prevent tampering;

[0087] Figure 29 This is a schematic diagram showing the combination of the composite outer cover and composite inner cover of an anti-opening eye drop device according to this utility model;

[0088] Figure 30 for Figure 29 Color images;

[0089] Components in the diagram:

[0090] 1. Composite outer cap; 2. Composite inner cap; 3. Inner plug; 4. Bottle body; 101. Wedge-shaped post I; 102. Indicator protrusion; 103. Guide rib; 104. Anti-slip texture; 105. Inner buckle line I; 201. Wedge-shaped post II; 202. Anti-theft ring; 203. Outer buckle line I; 204. Internal thread; 205. Plunger; 206. Transition limiting ring; 301. Discharge hole; 302. Inner buckle line II; 303. Reinforcing rib; 401. Outer buckle line II; 402. External thread; 403. Limiting ring; 6. Composite outer cap I. Detailed Implementation

[0091] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings. These embodiments are only for illustrating this application and are not intended to limit the scope of this utility model.

[0092] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0093] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0094] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0095] like Figure 1 , 2 16. An eye drop device that is tamper-evident, comprising a composite outer cap 1, a composite inner cap 2, an inner plug 3, and a bottle body 4.

[0096] like Figure 29 , 30The composite outer cover 1 and the composite inner cover 2 are set as an integral structure. The composite outer cover 1 is used to limit the composite inner cover 2 inside the composite outer cover 1. A rotating pair and a locking structure are set between the composite outer cover 1 and the composite inner cover 2. The composite outer cover 1 is used to drive the composite inner cover 2 to rotate so that the composite inner cover 2 and the bottle body 4 are separated or locked.

[0097] The locking structure is used to continuously lock the composite outer cover 1 and the composite inner cover 2 or intermittently lock the composite outer cover 1 and the composite inner cover 2, so that the composite outer cover 1 and the composite inner cover 2 are relatively stationary.

[0098] The locking structure is used to continuously unlock the composite outer cover 1 and the composite inner cover 2, so that the composite outer cover 1 and the composite inner cover 2 rotate relative to each other.

[0099] The composite inner cap 2 is used to seal the inner plug 3, the inner plug 3 is used for liquid dispensing from the bottle body 4, and the bottle body 4 is used for storing liquid.

[0100] The composite inner cap 2 and the bottle body 4 are fitted with threads, which are used to lock the composite inner cap 2 and the bottle body 4 when tightened and to separate the composite inner cap 2 and the bottle body 4 when loosened.

[0101] This application proposes an anti-opening eye drop device, the core of which lies in the combination structure of a composite outer cover 1 and a composite inner cover 2, along with a locking structure, to achieve a safety protection design that makes it difficult for children to open accidentally but allows adults to open easily; the technical features of this application are as follows:

[0102] I. Main Structure and Function

[0103] 1. Composite outer cover

[0104] External limiting structure ensures that the movement of the composite inner cover 2 within it is controlled;

[0105] It is equipped with a rotating joint and a locking structure, which can control the rotation state of the composite inner cover 2;

[0106] The outer composite cap 1 drives the inner composite cap 2 to rotate, thereby enabling the bottle to be opened or locked.

[0107] 2. Composite inner cover

[0108] It has the function of sealing the inner plug 3 to prevent the medicine from leaking;

[0109] The screw connection engages with the bottle body 4 to achieve locking or unlocking;

[0110] When the locking structure is unlocked, the composite inner cover 2 can rotate with the composite outer cover 1;

[0111] 3. Internal plug 3

[0112] Used to control the liquid discharge from bottle 4, preventing liquid leakage or contamination;

[0113] 4. Bottle body 4

[0114] Used to store the liquid medicine and to output the liquid through the inner plug 3;

[0115] II. Working Principle

[0116] 1. A locking structure is provided between the composite outer cover 1 and the composite inner cover 2, which can be locked or unlocked in different states;

[0117] 2. The rotating joint structure allows the composite outer cap 1 to drive the composite inner cap 2 to rotate freely when the locking structure is not locked, so that the lock between the composite inner cap 2 and the bottle body 4 is not opened or cannot be locked. That is, rotating the composite outer cap 1 does not affect the composite inner cap 2.

[0118] 3. The locking structure will only be triggered after the composite outer cover 1 is pressed, so that the composite outer cover 1 and the composite inner cover 2 fit together and rotate, so that the composite outer cover 1 can drive the composite inner cover 2 to rotate, thus opening the door.

[0119] 4. When not pressed, the locking structure remains unlocked, preventing the outer composite cover 1 and the inner composite cover 2 from being locked. This allows the outer composite cover 1 to be rotated without affecting the original state of the inner composite cover 2, thus preventing children from accidentally opening it.

[0120] 5. The composite inner cap 2 seals the inner plug 3, ensuring that liquid will not leak when not in use;

[0121] This device uses a combination of pressing to lock and rotating to open, achieving a safety feature that is easy for adults to open but difficult for children to open, thus improving the safety of eye drops;

[0122] The working process for this application is as follows:

[0123] 1. Initial state (unlocked state);

[0124] The composite outer cover 1 and the composite inner cover 2 are integrated into one structure, and the composite inner cover 2 is confined inside the composite outer cover 1;

[0125] A rotating pair and a locking structure are provided between the composite outer cover 1 and the composite inner cover 2;

[0126] When not pressed, the locking mechanism is not activated, and the composite outer cover 1 and the composite inner cover 2 can rotate freely relative to each other. That is, rotating the composite outer cover 1 will not cause the composite inner cover 2 to rotate, and the composite inner cover 2 and the bottle body 4 remain in their original state.

[0127] 2. Locking process;

[0128] When the user presses the composite outer cover 1, it triggers the locking structure of the composite outer cover 1 and the composite inner cover 2, locking the composite outer cover 1 and the composite inner cover 2 together.

[0129] While maintaining the pressed state, the composite outer cover 1 and the composite inner cover 2 form a linkage relationship, no longer allowing relative free rotation. At least the composite outer cover 1 can drive the composite inner cover 2 to rotate together through the squeezing friction.

[0130] 3. Start-up process;

[0131] While pressing, the user rotates the composite outer cover 1;

[0132] Since the locking structure has taken effect, the composite outer cover 1 drives the composite inner cover 2 to rotate synchronously.

[0133] The composite inner cap 2 is gradually loosened and eventually separated from the bottle body 4 through the threaded engagement, thus completing the opening process;

[0134] 4. Closing process;

[0135] Align the composite inner cap 2 with the bottle opening of the bottle body 4 and begin screwing it in;

[0136] During the tightening process, keep pressing the outer composite cap 1. The outer composite cap 1 continues to drive the inner composite cap 2 to rotate synchronously until the threads are fully locked, so that the inner composite cap 2 and the bottle body 4 are firmly connected.

[0137] After the pressure is released, the locking structure is released, and the composite outer cover 1 and the composite inner cover 2 return to a state of relative free rotation;

[0138] This process ensures that pressing is required to lock and rotate the bottle, thus opening it. When not pressed, the outer composite cap 1 and the inner composite cap 2 rotate freely relative to each other, preventing accidental opening and improving safety.

[0139] Specifically, in one embodiment of this application, such as Figure 6 , 7 8, 9, 10, 15, 16, 17, 18, 19, the locking structure includes a wedge-shaped post I 101 of the composite outer cover 1 and a wedge-shaped post II 201 of the composite inner cover 2. Both wedge-shaped posts I 101 and II 201 include at least two contact surfaces. After the wedge-shaped posts I 101 and II 201 abut against each other through the corresponding contact surfaces, the locking and unlocking of the composite outer cover 1 and the composite inner cover 2 are completed.

[0140] It should be noted that, since the wedge-shaped columns are uniformly distributed, the fit between wedge-shaped column I and wedge-shaped column II can also be understood as the fit between the wedge-shaped column and the wedge-shaped groove.

[0141] For example, the space between adjacent wedge-shaped columns I is regarded as wedge-shaped groove I, with a corresponding matching wedge-shaped column II;

[0142] Alternatively, the space between adjacent wedge-shaped columns II can be regarded as wedge-shaped groove II, corresponding to the matching wedge-shaped column I;

[0143] Therefore, the wedge-shaped structure of this application should be interpreted flexibly. For production needs, they are all regarded as wedge-shaped columns, which is conducive to production and can make the two misaligned. That is, the space between adjacent wedge-shaped columns is sufficient for the matching wedge-shaped columns to be placed.

[0144] For production and matching purposes, the composite outer cover 1 and composite inner cover 2 are designed to fit together easily, with wedge-shaped post I and wedge-shaped post II having the same specifications, and the wedge-shaped groove formed by the space of the corresponding adjacent wedge-shaped posts also having the same specifications.

[0145] Of course, this does not mean that the specifications must be the same. It is only necessary that the space between the adjacent wedge-shaped columns is sufficient to accommodate the corresponding wedge-shaped columns.

[0146] like Figure 24 , 25 26. Child-proof opening function: When the composite outer cover is not subjected to downward pressure, the bottom surface of its internal wedge-shaped column and the top surface of the wedge-shaped column of the composite inner cover are in contact with each other and are not locked. At this time, rotating the composite outer cover counterclockwise will not drive the composite inner cover, so it cannot be opened, thus realizing the child-proof opening function.

[0147] like Figure 24 , 26 When the composite outer cover is subjected to force and moves downward, its internal wedge-shaped post gets stuck in the wedge-shaped groove of the composite inner cover. At this time, rotating the composite outer cover counterclockwise can drive the composite inner cover, and the product can be opened normally.

[0148] Specifically, in one embodiment of this application, such as Figure 6 , 7 1, 8, 9, 10, 15, 16, 17, 18, 19, wedge-shaped post I 101 is set on the inner wall of the top of the composite outer cover 1, and wedge-shaped post II 201 is set on the top surface of the composite inner cover 2;

[0149] It can be set in the middle or at the edge of the top surface;

[0150] Furthermore, it is also possible to consider setting the locking structure on the side wall of the composite outer cover 1 and the composite inner cover 2:

[0151] If the raised structure I on the inner wall of the original composite outer cover 1 and the raised structure II on the outer wall of the composite inner cover 2 are not in contact, by pressing the composite outer cover 1, the composite outer cover 1 is moved relative to the composite inner cover 2, so that the raised structure I is close to the raised structure II, and the two are in contact and limited, thereby completing the joint rotation of the composite outer cover 1 and the composite inner cover 2, realizing the technical solution claimed in this application. The raised structure I and the raised structure II can be teeth, or raised blocks, columns, or opposites. Since the raised and recessed are relative, it can also be considered that the raised structure I is an inserted raised, and the adjacent raised structure II forms an inserted groove, thereby also realizing the contact and limited fit. Applications such as holes and shafts can also be achieved by elastic reset.

[0152] Furthermore, it could be considered to place the locking structure at the lower part of the composite outer cover 1 and the composite inner cover 2:

[0153] If the protruding structure I at the bottom of the composite outer cover 1 in its original state does not contact the protruding structure II at the bottom of the composite inner cover 2, by pressing the composite outer cover 1, the composite outer cover 1 is moved relative to the composite inner cover 2, so that the protruding structure I is close to the protruding structure II, and the two are in contact and limited, thereby completing the joint rotation of the composite outer cover 1 and the composite inner cover 2, realizing the technical solution claimed in this application, such as a tooth meshing structure, or a pressing friction structure, which can be achieved by setting protruding particles;

[0154] Furthermore, it is also possible to consider setting an elastic deformation pad, such as a sponge block or a spring pad, between the composite outer cover 1 and the composite inner cover 2, so that the composite outer cover 1 and the composite inner cover 2 have a tendency to reset each other, and keep the locking structure in an unlocked state.

[0155] Specifically, in one embodiment of this application, such as Figure 6 , 7 8, 9, 10, 15, 16, 17, 18, 19, wedge-shaped column I 101 and wedge-shaped column II 201 are fitted together with one of their contact surfaces, and after contact, at least one contact surface I is formed, and contact surface I is a plane;

[0156] The wedge-shaped column I 101 and the wedge-shaped column II 201 are fitted together with another contact surface, and after contact, at least one contact surface II is formed, and the contact surface II is a plane;

[0157] Bonding surface I and bonding surface II intersect;

[0158] Due to the difference between the bonding surfaces I and II, the squeezing force and rotational force required to drive the composite outer cover 1 and composite inner cover 2 to rotate together in two directions after pressing are different. This is also a strategy to achieve different rotational directions, which makes it valuable in certain drug control applications, such as making it easy to lock and seal drugs, but difficult to unlock and open them.

[0159] Specifically, in one embodiment of this application, such as Figure 6 , 7 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 16, 17, 18, 19, bonding surface I or bonding surface II, an axis through which the composite outer cap 1 and the composite inner cap 2 rotate relative to the bottle body 4, used to realize a labor-saving drive rotation mechanism.

[0160] Specifically, in one embodiment of this application, such as Figure 6 , 7 8, 10, 11, 12, 15, 16, 17, 19, 20, 21. The inner wall of the composite outer cover 1 is provided with guide ribs 103. The guide ribs 103 are used to limit the composite inner cover 2 and guide the composite outer cover 1 and the composite inner cover 2 to slide relative to each other along the central axis.

[0161] The guide rib 103 is also used to resist the pressure applied to the composite outer cover 1. That is, when pressing and moving the composite outer cover 1 closer to the composite inner cover 2, it is necessary to overcome the resistance, frictional resistance or elastic deformation force between the guide rib 103 and the composite inner cover 2. After the pressing pressure is released, the composite outer cover 1 and the composite inner cover 2 move away from the reset, so that the locking structure is unlocked.

[0162] Specifically, in one embodiment of this application, such as Figure 6 , 7 8, 10, 11, 12, 15, 16, 17, 19, 20, 21. The outer surface of the composite outer cover 1 is provided with anti-slip texture 104 to increase the friction between the composite outer cover 1 and the operator, making operation easier.

[0163] Specifically, in one embodiment of this application, such as Figure 2 , 4 The upper surface of the composite outer cover 1 is provided with an indicator protrusion 102. The indicator protrusion 102 is used to indicate the unlocking and locking operations of the locking structure between the composite outer cover 1 and the composite inner cover 2. The indicator protrusion 102 is a combination of Chinese or English graphics and is used to indicate how to operate the device.

[0164] Specifically, in one embodiment of this application, such as Figure 8 , 10 17, 19, The inner buckle line I105 set on the composite outer cover 1 corresponds to the outer buckle line I203 of the matching composite inner cover 2. The composite inner cover 2 limits the inner buckle line I105 through the outer buckle line I203, so that the composite inner cover 2 is limited inside the composite outer cover 1.

[0165] Specifically, in one embodiment of this application, such as Figure 10 , 19 The inner top of the composite inner cover 2 is provided with a plunger 205, which is used to insert into the liquid outlet hole 301 to form a seal.

[0166] Specifically, in one embodiment of this application, such as Figure 9 , 18 A transition limiting ring 206 is provided on the outer surface of the middle part of the composite inner cover 2. The transition limiting ring 206 is matched with a guide rib 103, which guides and limits the relative sliding of the composite outer cover 1 and the composite inner cover 2.

[0167] Specifically, in one embodiment of this application, an anti-theft ring 202 is provided at the lower end of the composite inner cap 2. The anti-theft ring 202 is positioned on the bottle body 4 and is used to open and separate the composite inner cap 2 and the bottle body 4 for the first time, and to indicate whether it has been used.

[0168] Specifically, in one embodiment of this application, such as Figure 5 , 6 14, 15, 23, A limiting ring 403 is provided on the bottle body 4; the limiting ring 403 is a raised ring, and the anti-theft ring 202 has an inner groove inside. The inner groove of the anti-theft ring 202 is embedded in the limiting ring 403, and the anti-theft ring 202 is limited on the limiting ring 403.

[0169] Specifically, in one embodiment of this application, such as Figure 5 , 6 14, 15, 23, A one-time weak connection is set between the lower part of the outer buckle line I203 and the anti-theft ring 202 to separate the anti-theft ring 202 from the composite inner cover 2.

[0170] Specifically, in one embodiment of this application, such as Figure 5 , 6 7, 14, 15, 16, 23, the inner plug 3 is inserted into the outlet of the bottle body 4.

[0171] Specifically, in one embodiment of this application, such as Figure 5 , 6 7, 13, 14, 15, 16, 22, 23, The inner plug 3 is provided with an inner buckle Ⅱ302 in the middle, which is matched with the corresponding outer buckle line Ⅱ401 of the bottle body 4 to limit the inner plug 3 on the bottle body 4.

[0172] Specifically, in one embodiment of this application, such as Figure 5 , 6 7, 13, 14, 15, 16, 22, 23, the liquid outlet 301 connects to the inner port of the inner plug 3 facing the bottle body 4, and the cross-sectional area of ​​the passage between the liquid outlet 301 and the inner port gradually decreases.

[0173] Specifically, in one embodiment of this application, such as Figure 13 The inner wall of the end of the inner plug 3 that extends into the bottle body 4 is provided with reinforcing ribs 303.

[0174] Specifically, in one embodiment of this application, such as Figure 11 , 12 20, 21, The outer shape of the composite outer cover 1 is a cylinder with the same shape from top to bottom, or a cone-shaped cylinder with a small top.

[0175] Specifically, in one embodiment of this application, such as Figure 24 , 25 26, 27, 28, the usage method is as follows:

[0176] Squeeze the composite outer cap 1 or the composite inner cap 2, bringing the composite outer cap 1 and the composite inner cap 2 closer together. Rotate the composite outer cap 1, and under the action of the bonding surface I or the bonding surface II, the composite outer cap 1 and the composite inner cap 2 rotate together, causing the threads of the composite inner cap 2 and the bottle body 4 to loosen or tighten.

[0177] Since the contact surfaces I and II have different angles with the direction of rotation, the sliding friction forces they may generate are different. Therefore, one direction is relatively less labor-intensive, and the required extrusion and rotation forces are relatively small. This is because this direction does not require the extrusion friction between the composite outer cover 1 and the composite inner cover 2, but is driven directly by the contact extrusion of the wedge-shaped pillars I 101 and II 201. That is, the tangent of the direction of rotation is perpendicular to the contact plane, which is a working condition where vertical surfaces are in contact with each other.

[0178] The other direction is relatively more strenuous, requiring greater compressive and rotational forces. This is because the component of the compressive force drives the rotation, and the frictional force is related to the pressure on the two surfaces. This makes it more strenuous than the previous case, namely the working condition of two inclined planes in contact.

[0179] like Figure 29 , 30 Without squeezing the composite outer cover 1 or the composite inner cover 2, and without the composite outer cover 1 and the composite inner cover 2 being close together, the composite outer cover 1 is rotated, and the composite outer cover 1 and the composite inner cover 2 rotate and slide relative to each other.

[0180] In summary, this invention aims to address the problem that existing eye drop containers lack effective child safety protection measures, making them easily opened by children and posing safety hazards such as misuse, ingestion, or overdose of the medication. This invention employs a press-lock structure to create a mechanism that requires pressing to unlock and rotate, ensuring normal use by adults while preventing accidental opening by children. Furthermore, the rotating joint structure of the composite outer and inner caps ensures that the cap can rotate freely without being pressed, further enhancing safety. In addition, this invention uses a threaded sealing structure to ensure sealed storage of the medication, preventing evaporation and contamination, thus improving product safety and lifespan.

[0181] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An anti-tampering eye drop device, characterized in that, The composite outer cover (1, 6), the composite inner cover (2), the inner plug (3), and the bottle body (4); The composite outer cover (1, 6) and the composite inner cover (2) are arranged in an integrated structure, the composite outer cover (1, 6) is used for limiting the composite inner cover (2) in the composite outer cover (1, 6), a rotating pair and a locking structure are arranged between the composite outer cover (1, 6) and the composite inner cover (2), and the composite outer cover (1, 6) is used for driving the composite inner cover (2) to rotate to separate or lock the composite inner cover (2) and the bottle body (4); The locking structure is used for continuously locking the composite outer cover (1, 6) and the composite inner cover (2) or intermittently locking the composite outer cover (1, 6) and the composite inner cover (2), so that the composite outer cover (1, 6) and the composite inner cover (2) are relatively stationary; The locking structure is used for continuously unlocking the composite outer cover (1, 6) and the composite inner cover (2), so that the composite outer cover (1, 6) and the composite inner cover (2) relatively rotate; The composite inner cover (2) is used for sealing the inner plug (3), the inner plug (3) is used for liquid outlet of the bottle body (4), and the bottle body (4) is used for storing liquid; The composite inner cover (2) and the bottle body (4) are arranged in cooperation with threads, so as to lock the composite inner cover (2) and the bottle body (4) after being screwed and separate the composite inner cover (2) and the bottle body (4) after being unscrewed.

2. An unopenable eye drop device according to claim 1, wherein The locking structure includes a wedge-shaped column I (101) of the composite outer cover (1, 6) and a wedge-shaped column II (201) of the composite inner cover (2), the wedge-shaped column I (101) and the wedge-shaped column II (201) each include at least two abutting surfaces, and the wedge-shaped column I (101) and the wedge-shaped column II (201) complete locking and unlocking of the composite outer cover (1, 6) and the composite inner cover (2) after abutting through corresponding abutting surfaces; The wedge-shaped column I (101) is arranged on an inner wall of a top of the composite outer cover (1, 6), and the wedge-shaped column II (201) is arranged on a top end surface of the composite inner cover (2).

3. An unopenable eye drop device according to claim 2, wherein One of the abutting surfaces of the wedge-shaped column I (101) and the wedge-shaped column II (201) is arranged in abutment, and at least one abutment surface I is formed after abutting, the abutment surface I being a plane; The other abutting surface of the wedge-shaped column I (101) and the wedge-shaped column II (201) is arranged in abutment, and at least one abutment surface II is formed after abutting, the abutment surface II being a plane; The abutment surface I and the abutment surface II intersect; The abutment surface I or the abutment surface II passes through an axis of a rotating movement of the composite outer cover (1, 6) and the composite inner cover (2) relative to the bottle body (4).

4. An unopenable eye drop device according to claim 1, wherein An inner wall of the composite outer cover (1, 6) is provided with a guide rib (103), the guide rib (103) is used for limiting the composite inner cover (2) and guiding the composite outer cover (1, 6) and the composite inner cover (2) to slide along a central axis direction; An outer surface of the composite outer cover (1, 6) is provided with an anti-skid pattern (104); An upper end surface of the composite outer cover (1, 6) is provided with an indicating protrusion (102), and the indicating protrusion (102) is used for indicating unlocking operation and locking operation of the locking structure between the composite outer cover (1, 6) and the composite inner cover (2).

5. An unopenable eye drop device according to claim 1, wherein The inner buckle line I (105) arranged on the composite outer cover (1, 6) corresponds to the outer buckle line I (203) of the composite inner cover (2), the composite inner cover (2) is limited by the outer buckle line I (203) to the inner buckle line I (105), so that the composite inner cover (2) is limited in the composite outer cover (1, 6); The inner end of the composite inner cover (2) is provided with a plunger (205), which is used for inserting into the liquid outlet hole (301) to form a seal; The outer surface of the middle part of the composite inner cover (2) is provided with a transition limiting ring (206), which is matched with a guide rib (103) to limit the relative sliding of the composite outer cover (1, 6) and the composite inner cover (2).

6. A tamper-resistant eye drop device as defined in claim 1, wherein The lower end of the composite inner cover (2) is provided with an anti-theft ring (202), which is limited on the bottle body (4) and used for separating the composite inner cover (2) and the bottle body (4) for the first time.

7. An unopenable eye drop device according to claim 1, wherein The bottle body (4) is provided with a limiting ring (403); the limiting ring (403) is a protruding ring, the inner part of the anti-theft ring (202) is provided with an inner groove, the inner groove of the anti-theft ring (202) is embedded in the limiting ring (403), and the anti-theft ring (202) is limited on the limiting ring (403).

8. A tamper-resistant eye drop device as defined in claim 7, wherein A disposable weak connection is arranged between the lower part of the outer buckle line I (203) and the anti-theft ring (202), which is used for separating the anti-theft ring (202) from the composite inner cover (2).

9. A tamper-resistant eye drop device as defined in claim 1, wherein The inner plug (3) is inserted into the outlet of the bottle body (4); The middle part of the inner plug (3) is provided with an inner buckle line II (302), which is matched with the outer buckle line II (401) of the bottle body (4) to limit the inner plug (3) on the bottle body (4); The liquid outlet hole (301) is connected to the inner port of the inner plug (3) towards the bottle body (4), and the cross section of the passage between the liquid outlet hole (301) and the inner port gradually decreases; The inner wall of the end of the inner plug (3) extending into the bottle body (4) is provided with a reinforcing rib (303).

10. A tamper-resistant eye drop device as defined in claim 1, wherein, The shape of the composite outer cover (1, 6) is a cylindrical shape consistent from top to bottom, or a tapered column with a small top.

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