A contact lens case that won't overflow

Abstract

To provide an overflow-proof contact lens case which prevents leakage of a storage solution. [Solution] The case comprises a case body 10, a holder 20, and a case cap 30. The case body has a storage space 11 for storing contact lens storage solution, the holder is housed in the storage space, and an assembly screw post 21 is provided on the top of the holder. The case cap is attached on the case body, and the case body is sealed. An assembly screw hole 31 is provided in the center of the bottom of the case cap and is connected to the assembly screw post of the holder by screw lock. The assembly screw post and the assembly screw hole are not completely tightly assembled and have an air vent gap. An air vent pin hole 33 is provided at the center of the top of the case body, and the air vent pin hole is connected to the assembly screw hole.

Description

[Technical field]

[0001] The present invention relates to a contact lens cleaning case, and more particularly to a contact lens case that is breathable and prevents the storage solution from spilling out. [Background technology]

[0002] Contact lenses are lenses that are worn directly on the cornea of ​​the eye to correct vision, protect the eyes, and slow the progression of myopia (corneal plastic sheets). With the advent of colored contact lenses (pupil dilation sheets) that also have makeup functions, the use of contact lenses has reached another peak.

[0003] Since the contact lenses are in direct contact with the cornea when worn, cleaning after wearing is particularly important, and conventionally, the contact lenses are disinfected by soaking them in a contact lens cleaning case after cleaning, which is mainly done by touching them with hands to clean the proteins on the surface of the lenses. However, the cleaning cases commonly seen at present do not have a ventilation structure, and reactive gas is generated during the soaking process of the storage solution or cleaning solution, and since the reactive gas cannot be discharged, a high pressure state is created inside the cleaning case, and the storage solution or cleaning solution is easily pushed by the reactive gas and flows into the gap between the case body and the case cap, causing the storage solution or cleaning solution to overflow, causing inconvenience in use and concerns about safety in use.

[0004] Taking this into consideration, the inventor has developed the present practical invention after detailed design and rigorous evaluation with respect to the above-mentioned goal, based on his many years of experience in the manufacture, development, and design of products in this field. Summary of the Invention

[0005] The technical problem that the present invention aims to solve is to solve the above-mentioned shortcomings in the prior art and provide a contact lens case that does not overflow. The contact lens case of the present invention includes a case body, a holder, and a case cap. The case body has a storage space for storing a contact lens storage solution, the holder is disposed within the storage space, and a screw post is provided on the top of the holder. The case cap is attached on the case body, and the case body is sealed. A screw hole is provided at the center of the bottom of the case cap and is connected to the screw post of the holder by screw locking. The screw post and the screw hole are not completely tightly assembled and have an air vent gap. An air vent pinhole is provided at the center of the top of the case body, which passes through the case body, and the air vent pinhole is connected to the screw hole. The air vent gap and the air vent pinhole are used to exhaust reaction gas generated by the storage solution when storing and cleaning the contact lenses. Since the liquid has a stronger surface tension, it is further restricted by the air vent pinhole to prevent the storage solution from overflowing.

[0006] An opening communicating with the storage space is provided at the top of the case body, a male thread is provided on the outer diameter surface of the opening, an annular groove is provided on the outer edge of the bottom of the case cap, and a female thread is provided on the inner diameter surface of the annular groove which is connected to the male thread of the opening by thread locking. A watertight washer is further fitted into the annular groove, and it is preferable that the watertight washer tightly abuts against the edge of the opening when the case cap is connected to the case body.

[0007] It is preferred that the assembly screw post of the holder is a short screw post, the length of the assembly screw post is less than the depth of the assembly screw hole, and an air cell is formed between the top of the assembly screw post and the inner wall of the assembly screw hole.

[0008] The assembly post of the holder is a long post, the length of the assembly post is approximately the same as the depth of the assembly hole, and the top of the assembly post is adjacent to, but preferably not in contact with, the inner wall of the assembly hole.

[0009] It is preferable that an abutment base is provided on the top of the holder, the assembly screw column is molded at the center position of the abutment base, and at least one air vent groove is further provided on each side of the assembly screw column on the surface of the abutment base.

[0010] It is preferable that the diameter of the air vent pinhole in the case cap gradually decreases from top to bottom to form a conical hole.

[0011] In comparison with the effects of the prior art, the contact lens case of the present invention has a ventilation effect through the air vent gap and air vent pinhole, and during the contact lens cleaning process, the reactive gas generated by the storage solution can be discharged through the air vent gap and air vent pinhole, preventing the storage solution from being altered or contaminated after the contact lenses have been stored for a long time, keeping the lenses clean, and further improving the safety of wearing contact lenses.

[0012] Furthermore, since the liquid has surface tension and the reactive gas can be discharged through the air vent gap and the air vent pinhole from the beginning, the storage solution for the contact lens is not subjected to excessive pressure and cannot enter the air vent gap or pass through the air vent pinhole, which further prevents the storage solution from overflowing. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a three-dimensional view of the present invention. [Diagram 2] FIG. 2 is an exploded view of the present invention. [Diagram 3] FIG. 3 is a cross-sectional view showing the state in which the present invention is assembled. [Figure 4] FIG. 4 is an enlarged partial cross-sectional view of the present invention when assembled. [Diagram 5] FIG. 5 is a schematic diagram showing how the preservative does not spill out even when the case of the present invention is tilted. [Figure 6] FIG. 6 is a partially enlarged cross-sectional view showing the state in which the screw post for assembly of the present invention is a long screw post. [Figure 7] FIG. 7 is a perspective view and a partially enlarged sectional view of another embodiment of the present invention. [Figure 8] FIG. 8 is a schematic diagram showing the air venting state of another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] In order to make the objects, features and advantages of the present invention more easily understood and appreciated, the following detailed description will be given with reference to the drawings, in which:

[0015] First, as shown in FIG. 1 to FIG. 5, the contact lens case is spill-proof, and includes a case body 10, a holder 20, and a case cap 30. The case body 10 has a storage space 11 for storing a contact lens storage solution. The holder 20 is accommodated in the storage space 11, and a screw post 21 is provided on the top of the holder 20. The case cap 30 is attached on the case body 10. The case body 10 is sealed. The case cap 30 has a screw hole 31 at the center of the bottom thereof, which is connected to the screw post 21 of the holder 20 by screw locking. The screw post 21 is connected to the screw post 21. An air vent gap 32 is formed between the assembly screw hole 31 and the case body 30, and an air vent pin hole 33 is provided at the center of the top of the case body 30, which passes through the case body 30. The air vent pin hole 33 is connected to the assembly screw hole 31. This allows the air vent gap 32 and the air vent pin hole 33 to be used to exhaust reaction gases generated when the storage solution is used to store and clean contact lenses. Since liquids such as storage solution have surface tension, they are unlikely to enter the air vent gap 32 between the assembly screw post 21 and the assembly screw hole 31, and are further restricted by the air vent pin hole 33 to prevent the storage solution from overflowing.

[0016] More specifically, an opening 12 communicating with the storage space 11 is provided at the top of the case body 10, a male thread portion 121 is provided on the outer diameter surface of the opening 12, an annular groove 34 is provided on the outer edge of the bottom of the case cap 30, a female thread portion 341 is provided on the inner diameter surface of the annular groove 34, and is connected to the male thread portion 121 of the opening 12 by thread lock. A water stop washer 35 is further fitted in the annular groove 34, and the water stop washer 35 tightly fits the opening 12 when the case cap 30 is connected to the case body 10. 12 to keep the case body 10 sealed; abutment base 22 is provided on the top of the holder 20, and the assembly screw post 21 is molded at the center position of the abutment base 22; the assembly screw post 21 in this embodiment is a short screw post, and the length of the assembly screw post 21 is shorter than the depth of the assembly screw hole 31, so that an air cell 35 is formed between the top of the assembly screw post 21 and the inner wall of the assembly screw hole 31; and the diameter of the air vent pin hole 33 of the case cap 30 gradually decreases from top to bottom to form a conical hole.

[0017] In another embodiment of the present invention, as shown in FIG. 6 again, the screw post 21 of the holder 20 is a long screw post, the length of the screw post 21 is approximately the same as the depth of the screw hole 31, and the top of the screw post 21 is adjacent to but not in contact with the inner wall of the screw hole 31.

[0018] Regarding another embodiment of the present invention, as shown in Figures 7 and 8, the surface of the abutment base 22 of the holder 20 is further provided with at least one air vent groove 221 on both sides of the assembly screw column 21. In this embodiment, three air vent grooves 221 parallel to each other are provided on both sides of the assembly screw column 21, and the outer ends of the air vent grooves 221 penetrate the outer ends of all the abutment bases 22. Thus, when the end of the assembly screw hole 31 of the case cap 30 is attached close to the abutment base 22, a flow path is further formed in the air vent groove 221 at the end between the abutment base 22 and the assembly screw hole 31, which serves the flow of the reaction gas generated from the storage liquid, and further improves the discharge of the reaction gas.

[0019] The structure of the above specific embodiment can provide the following effects: The contact lens case of the present invention has a ventilation effect through the air vent gap 32 and the air vent pinhole 33, and during the contact lens cleaning process, reactive gas generated by the storage solution can be discharged through the air vent gap 32 and the air vent pinhole 33, preventing the storage solution from being altered or contaminated after the contact lenses are stored for a long time, keeping the lenses clean, and improving the safety of wearing the contact lenses.

[0020] Furthermore, since the liquid has surface tension and the reactive gas can be discharged through the air vent gap 32 and the air vent pinhole 33 from the beginning, the storage solution for the contact lenses is not subjected to excessive pressure and cannot enter the air vent gap 32 or pass through the air vent pinhole 33, which further prevents the storage solution from spilling out.

[0021] The above is merely one embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e., any changes or modifications made within the scope of the utility model claims should also fall within the scope of the present invention. [Explanation of symbols]

[0022] 10 Case body 11. Storage Space 12 Opening 121 Male thread 20 Holder 21 Screw column for assembly 22 Contact base part 221 Air vent groove 30 Case Cap 31 Assembly screw holes 32 Air vent gap 33 Air vent pinhole 34 Annular groove 341 Female thread 35 Water stop washer 36 Air Cell

Claims

1. A non-overflowing contact lens case including a case body, a holder, and a case cap, a case body having a storage space for storing a contact lens storage solution, a holder disposed within the storage space, a screw post provided on the top of the holder, a case cap attached on the case body, the case body sealed, a screw hole provided at the center of the bottom of the case cap and connected to the screw post of the holder by screw locking, the screw post and the screw hole are not completely tightly assembled to each other, and an air vent gap is provided; and an air vent pinhole is provided at the center of the top of the case body, the air vent pinhole is connected to the screw hole, so that the air vent gap and the air vent pinhole are used to exhaust reaction gas generated by the storage solution when storing and cleaning the contact lenses, and since the liquid has a stronger surface tension, it is further restricted by the air vent pinhole to achieve the purpose of preventing the storage solution from overflowing.

2. The spill-proof contact lens case of claim 1, characterized in that the top of the case body has an opening communicating with the storage space, the outer diameter surface of the opening has a male thread, the outer edge of the bottom of the case cap has an annular groove, the inner diameter surface of the annular groove has a female thread which is screw-locked to the male thread of the opening, and a waterproof washer is further fitted into the annular groove, and the waterproof washer tightly abuts against the edge of the opening when the case cap is connected to the case body.

3. The spill-proof contact lens case of claim 1, wherein the assembly screw post of the holder is a short screw post, the length of the assembly screw post is less than the depth of the assembly screw hole, and an air cell is formed between the top of the assembly screw post and the inner wall of the assembly screw hole.

4. 2. The spill-proof contact lens case of claim 1, wherein the screw post of the holder is a long screw post, the length of the screw post is approximately the same as the depth of the screw hole, and the top of the screw post is adjacent to but not in contact with the inner wall of the screw hole.

5. The spill-proof contact lens case of claim 1, characterized in that a contact base is provided on the top of the holder, the assembly screw post is molded at the center position of the contact base, and at least one air vent groove is further provided on each side of the assembly screw post on the surface of the contact base.

6. 2. The spill-proof contact lens case of claim 1, wherein the diameter of the air vent pinhole of said case cap gradually decreases from top to bottom to form a conical hole.

Images