Hard contact lens suction rod

Abstract

The utility model relates to a hard contact lens suction rod which comprises a pressing rod, a suction cup rod and a suction cup, a cavity is defined in the pressing rod, one end of the pressing rod is arranged in a sealed mode, and the other end of the pressing rod is provided with an opening communicated with the cavity. One end of the suction cup rod is inserted into the opening, so that the suction cup rod is detachably connected with the pressing rod, and a cavity channel communicated with the cavity is defined in the suction cup rod; the sucker is mounted at one end of the sucker rod away from the pressing rod; when the pressing rod is alternately extruded, the air pressure in the cavity is alternately changed between the first state and the second state, so that the suction cup alternately generates suction force to adsorb the lens. The hard contact lens suction rod based on the structure is simple in structure and convenient to disassemble and assemble, the suction cup can be replaced in time after the lens is sucked for a period of time, and the problem that secondary pollution occurs in the lens sucking and cleaning process due to the fact that the suction cup is used for many times is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lens suction rods, in particular to a rigid contact lens suction rod. Background Art

[0002] Hard contact lenses are made of hard materials and are in direct contact with the human eye (cornea) to correct refractive errors. When removing hard contact lenses, there is a layer of tear film between the human eye and the lens. Due to the effect of surface tension, the lens will be tightly adsorbed on the surface of the human eye. Therefore, when removing the lens or placing the lens in a cleaning machine for cleaning, a special hard contact lens suction rod (hereinafter referred to as the lens suction rod) is required to remove it. However, the suction head in the hard contact lens suction rod cannot be disassembled at present. During the repeated suction of the lens, the cleaned lens will be contaminated due to multiple suctions by the suction head. Utility Model Content

[0003] In order to solve the above technical problem or at least partially solve the above technical problem, the present application provides a hard contact lens suction rod.

[0004] The present application provides a hard contact lens suction rod, comprising:

[0005] A pressing rod having a cavity defined therein, one end of the pressing rod being sealed, and the other end of the pressing rod being provided with an opening communicating with the cavity;

[0006] A suction cup rod, one end of which is inserted into the opening so that the suction cup rod is detachably connected to the pressing rod, and a cavity communicating with the cavity is defined inside the suction cup rod;

[0007] A suction cup, which is mounted on an end of the suction cup rod away from the pressing rod;

[0008] When the pressing rod is squeezed alternately, the air pressure in the cavity changes alternately between the first state and the second state, so that the suction cup alternately generates suction to adsorb the lens.

[0009] In a possible implementation manner, recessed areas for pressing are provided on both sides of the upper portion of the pressing rod.

[0010] In a possible implementation manner, the recessed area is arranged in an elliptical shape.

[0011] In a possible implementation, the end of the suction cup rod away from the pressing rod has a hollow plug-in column, the top of the suction cup is integrally connected to the mounting column, and the interior of the mounting column is provided with a plug-in cavity for plugging with the plug-in column.

[0012] In a possible implementation manner, the first sealing ring and the second sealing ring are further included, and the first sealing ring and the second sealing ring are sleeved on the connecting portion at intervals;

[0013] Wherein, when the connecting portion is inserted into the opening, the first sealing ring and the second sealing ring abut against the inner wall of the pressing rod.

[0014] In a possible implementation manner, a first groove and a second groove are provided on the inner wall of the pressing rod at intervals;

[0015] When the connecting portion is inserted into the opening, the first sealing ring and the second sealing ring are inserted into the first groove and the second groove.

[0016] In a possible implementation, the suction cup is a flexible component made of an absorbent material; wherein the flexible component is made of silicone or natural rubber.

[0017] In a possible implementation manner, the suction cup has an inwardly concave adsorption surface, and the curvature radius of the adsorption surface is between 6.0 mm and 15 mm.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] The suction cup is installed on the suction cup rod, and then the end of the suction cup rod close to the pressing rod is inserted into the opening so that the suction cup rod and the pressing rod are plugged together. When the lens needs to be sucked, the pressing rod is squeezed to change the air pressure in the cavity so that the suction cup generates suction to adsorb the lens. When the lens needs to be separated from the suction cup, just release the squeezing of the pressing rod so that the air pressure in the cavity is restored to the same as the external air pressure, so that the suction force for adsorbing the lens is eliminated, thereby realizing the separation of the lens and the suction cup. The structure is simple and the disassembly and assembly are convenient. The suction cup can be replaced in time after the lens is adsorbed for a period of time, thereby avoiding the problem of secondary contamination in the process of adsorbing and cleaning the lens due to repeated use of the suction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] In the attached figure:

[0023] Figure 1 It is a structural schematic diagram of a hard contact lens suction rod of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a suction cup rod in a hard contact lens suction rod of the utility model;

[0025] Figure 3 It is a structural schematic diagram of a pressing rod in a rigid contact lens suction rod of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a suction cup in a hard contact lens suction rod of the utility model;

[0027] Figure 5 The utility model is an exploded view of a hard contact lens suction rod.

[0028] Figure Number:

[0029] 10. Pressing rod; 10a. Recessed area; 20. Suction cup rod; 20a. Plug-in column; 30. Suction cup; 40. First sealing ring; 50. Second sealing ring; 60. First groove; 70. Second groove; 80. Mounting column; 80a. Plug-in cavity; 90. Filter cotton. DETAILED DESCRIPTION

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0031] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0033] Please refer to Figures 1 to 4 The present application provides a hard contact lens suction rod, including a pressing rod 10, a suction cup rod 20 and a suction cup 30.

[0034] Specifically, a cavity is defined inside the pressing rod 10, and one end of the pressing rod 10 is sealed, and the other end is provided with an opening communicating with the cavity; one end of the suction cup rod 20 is inserted into the opening, so that the suction cup rod 20 is detachably connected to the pressing rod 10, and a cavity communicating with the cavity is defined inside the suction cup rod 20; the suction cup 30 is installed at one end of the suction cup rod 20 away from the pressing rod 10. When the pressing rod 10 is squeezed alternately, the air pressure in the cavity alternately changes between the first state and the second state, so that the suction cup 30 alternately generates suction to adsorb the lens.

[0035] Exemplarily, the connection method of the suction cup 30 installed on the end of the suction cup rod 20 away from the pressing rod 10 can be detachable (such as plugging), so that when the suction cup 30 needs to be disassembled, only the suction cup 30 needs to be disassembled, without the need to disassemble the suction cup rod 20 and the suction cup 30 as a whole, thereby facilitating the quick installation of the suction cup 30.

[0036] In other embodiments, the suction cup 30 can be fixed to the suction cup rod 20 by an integrated connection method (for example, integral molding), so that when the suction cup 30 needs to be removed, the suction cup rod 20 can be directly removed from the pressing rod 10, thereby achieving quick installation or removal of the suction cup 30.

[0037] It should be noted that the “first state” mentioned above refers to a state in which the air pressure in the cavity is lower than the external air pressure, so that the suction cup 30 can generate suction to hold the lens tightly; the “second state” refers to a state in which the air pressure in the cavity is equal to the external air pressure, so that the suction force of the suction cup 30 on the lens is eliminated, thereby achieving separation of the lens and the suction cup 30.

[0038] Based on the hard contact lens suction rod with the above technical features, the suction cup 30 is installed on the suction cup rod 20, and then the end of the suction cup rod 20 close to the pressing rod 10 is inserted into the opening so that the suction cup rod 20 is plugged into the pressing rod 10. When the lens needs to be sucked, the pressing rod 10 is squeezed to change the air pressure in the cavity so that the suction cup 30 generates suction to adsorb the lens. When the lens needs to be separated from the suction cup 30, it is only necessary to release the squeezing of the pressing rod 10 so that the air pressure in the cavity is restored to the same as the external air pressure, so that the suction force for adsorbing the lens is eliminated, thereby realizing the separation of the lens and the suction cup 30. The structure is simple and the disassembly and assembly are convenient. The suction cup 30 can be replaced in time after the lens is adsorbed for a period of time, thereby avoiding the problem of secondary contamination in the process of adsorbing and cleaning the lens due to repeated use of the suction cup 30.

[0039] In a possible implementation, depressions 10a for pressing are provided on both sides of the upper portion of the pressing rod 10. In this way, it is convenient for the user to squeeze the pressing rod 10 to change the air pressure in the cavity, thereby achieving adsorption or separation of the lens.

[0040] In a possible implementation, the recessed area 10a is elliptical, so that it can better fit the thumb of the user and facilitate compression.

[0041] In a possible embodiment, the end of the suction cup rod 20 away from the pressing rod 10 has a hollow plug-in column 20a, the top of the suction cup 30 is integrally connected to the mounting column 80, and the mounting column 80 is provided inside the mounting column 80 for plugging with the plug-in column 20a. In this way, by integrally connecting the mounting column 80 to the top of the suction cup 30, and providing the plug-in cavity 80a inside the mounting column 80, and then inserting the plug-in column 20a of the suction cup rod 20 into the plug-in cavity 80a, the suction cup 30 can be detachably mounted on the suction cup rod 20, which has a simple structure and facilitates the subsequent rapid replacement of the suction cup 30.

[0042] In a possible implementation, the first sealing ring 40 and the second sealing ring 50 are also included, and the first sealing ring 40 and the second sealing ring 50 are sleeved on the connecting portion at intervals; wherein, when the connecting portion is inserted into the opening, the first sealing ring 40 and the second sealing ring 50 abut against the inner wall of the pressing rod 10. In this way, by sleeve-fitting the first sealing ring 40 and the second sealing ring 50 on the connecting portion, when the inserting portion is inserted into the opening, the first sealing ring 40 and the second sealing ring 50 abut against the inner wall of the pressing rod 10, so as to ensure that the gas does not flow out from the gap, and have better suction force to tighten the lens.

[0043] In a possible implementation, the inner wall of the pressing rod is provided with a first groove 60 and a second groove 70 at intervals; when the connecting portion is inserted into the opening, the first sealing ring 40 and the second sealing ring 50 are inserted into the first groove 60 and the second groove 70. In this way, by providing the first groove 60 and the second groove 70 on the inner wall of the pressing rod, the first sealing ring 40 and the second sealing ring 50 can be inserted into the first groove 60 and the second groove 70 respectively, thereby enhancing the sealing performance of the connection gap between the pressing rod 10 and the suction cup rod 20.

[0044] In one possible implementation, see Figure 5 A filter cotton 90 is arranged between the pressing rod 10 and the suction cup rod 20. The filter cotton 90 is pressed on the upper end surface of the first sealing ring 40.

[0045] In a possible implementation, the suction cup 30 is a flexible component made of an absorbent material; wherein the flexible component is made of silicone or natural rubber.

[0046] With the above structure, since the suction cup 30 is made of a flexible material with adsorption properties, scratching the lens when removing the lens or hurting the eyes due to operational errors can be avoided. At the same time, sufficient physical adsorption force between the suction cup 30 and the lens material can be obtained during use, thereby improving the success rate of using the suction rod to remove the lens.

[0047] In a possible implementation, the suction cup 30 has an inwardly concave suction surface, and the curvature radius of the suction surface is between 6.0 mm and 15 mm. Thus, a curvature radius range of the suction surface and a diameter range of the suction cup 30 are provided, so that a suction force sufficient to remove the lens can be generated, and the lens can be removed without pressing or with only a very small pressing.

[0048] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A rigid contact lens suction rod, characterized in that: include: A pressing rod having a cavity defined therein, one end of the pressing rod being sealed, and the other end of the pressing rod being provided with an opening communicating with the cavity; A suction cup rod, one end of which is inserted into the opening so that the suction cup rod is detachably connected to the pressing rod, and a cavity communicating with the cavity is defined inside the suction cup rod; A suction cup, which is mounted on an end of the suction cup rod away from the pressing rod; When the pressing rod is squeezed alternately, the air pressure in the cavity changes alternately between the first state and the second state, so that the suction cup alternately generates suction to adsorb the lens.

2. The hard contact lens suction rod according to claim 1, characterized in that: Both sides of the upper part of the pressing rod are provided with recessed areas for pressing.

3. The hard contact lens suction rod according to claim 2, characterized in that: The concave area is arranged in an elliptical shape.

4. The hard contact lens suction rod according to claim 1, characterized in that: The end of the suction cup rod away from the pressing rod is provided with a hollow plug-in column, the top of the suction cup is integrally connected to the mounting column, and the interior of the mounting column is provided with a plug-in cavity for plugging with the plug-in column.

5. The hard contact lens suction rod according to claim 1, characterized in that: One end of the suction cup rod close to the pressing rod has a connecting portion for plugging into the opening.

6. The rigid contact lens suction rod according to claim 5, characterized in that: It also includes a first sealing ring and a second sealing ring, wherein the first sealing ring and the second sealing ring are sleeved on the connecting portion at intervals; Wherein, when the connecting portion is inserted into the opening, the first sealing ring and the second sealing ring abut against the inner wall of the pressing rod.

7. The rigid contact lens suction rod according to claim 6, characterized in that: The inner wall of the pressing rod is provided with a first groove and a second groove at intervals; When the connecting portion is inserted into the opening, the first sealing ring and the second sealing ring are inserted into the first groove and the second groove.

8. The rigid contact lens suction rod according to claim 1, characterized in that: The suction cup is a flexible component made of an absorbent material; wherein the flexible component is made of silicone or natural rubber.

9. The rigid contact lens suction rod according to claim 1, characterized in that: The suction cup has an inwardly concave adsorption surface, and the curvature radius of the adsorption surface is between 6.0 mm and 15 mm.

Images