Bottle connection eye-wash device

Abstract

This application relates to the technical field of emergency eye washing devices, specifically to a bottle-type eyewash station. The bottle-type eyewash station includes a cover for engaging with a single eye, with an internal cavity providing eyewash space and allowing water to enter and exit. A sleeve extends vertically downwards to the center of the cover, with a centrally located outlet for spraying water at its top. The outlet is arranged along the axial direction of the sleeve and positioned inside the sleeve. Multiple drain outlets for discharging water are evenly spaced around the outlet, arranged along the axial direction of the sleeve and positioned outside the sleeve, with the drain outlets at a lower level than the outlet. The lower end of the sleeve has an internal thread for connecting to the mouth of a water bottle, replacing a bottle cap. By manually squeezing the water bottle, the physical volume change causes clean water to spray out through the outlet.

Description

Technical Field

[0001] This application relates to the technical field of emergency eye washing devices, specifically to a bottle-type eyewash station, which is particularly suitable for rapid emergency eye washing in environments without professional eyewash equipment, such as outdoor activities, fieldwork, and home settings. Background Technology

[0002] Eyewash stations, as emergency protective devices, play an important role in fields such as chemical industry, laboratories and outdoor operations. Traditional fixed eyewash stations generally suffer from drawbacks such as reliance on continuous water supply lines, limited installation locations, and high maintenance costs, making it difficult to meet emergency needs in mobile scenarios.

[0003] Existing portable eyewash products mostly adopt a design that combines an independent water storage container with a complex pump structure. This results in problems such as bulky size, cumbersome operation (requiring manual pump pressure), and unstable water pressure, which seriously restricts the universality of the equipment and its substitutability in emergency situations. Therefore, there is an urgent need to develop an eyewash device that is easy to operate and carry to achieve rapid emergency eye washing, thereby improving the timeliness and safety of emergency eye rinsing. Utility Model Content

[0004] The problem this application aims to solve is that existing portable eyewash stations are limited by their independent water storage containers and complex pump structures, making it difficult to perform rapid emergency eyewash operations in outdoor activities, fieldwork, and home settings.

[0005] To address the aforementioned technical problems, this application provides a bottle-type eyewash station, comprising a cover for engaging with a single eye, with an internal cavity providing eyewash space and allowing cleaning water to enter and exit; a sleeve extending vertically downwards to the center of the cover, with a centrally located outlet for spraying cleaning water at its top, the outlet being arranged along the axial direction of the sleeve and positioned inside the sleeve; a plurality of drain outlets evenly and at intervals around the outlet for discharging cleaning water, the drain outlets being arranged along the axial direction of the sleeve and positioned outside the sleeve, the drain outlets being at a lower level than the outlet; the lower end of the sleeve has an internal thread for connecting to the mouth of a water bottle, replacing the bottle cap for connection to the water bottle, and by manually squeezing the water bottle, the physical volume change of the water bottle causes the clean water inside to spray out along the outlet, after cleaning the eye, the cleaning water falls to the bottom of the cavity under its own gravity, and then flows out along the surrounding drain outlets.

[0006] Since the eyewash station of this application is designed to be used in conjunction with commercially available water bottles, it is able to have the functions of simple structure, convenient operation, easy portability and strong versatility. It solves the problem that the existing portable eyewash stations are limited by independent water storage containers and complex pump structures, making it difficult to perform quick emergency eye washing operations in outdoor activities, field work, home and other scenarios.

[0007] The technical effects of the technical solution in this application are as follows: 1. Improved connection stability: The lower end of the eyewash unit has an internal thread that connects to the mouth of a water bottle. This internal thread allows for a tight connection with existing mineral water or purified water bottles, replacing the bottle cap in the assembly process. This threaded connection is stable and reliable, effectively preventing the water bottle from shaking or falling off during the washing process. This ensures that the washing water is sprayed accurately and stably onto the eyes, greatly improving the eye washing effect and reducing the risk of secondary injury caused by the water bottle falling off.

[0008] 2. Full utilization of cleaning water: This eyewash station uses a tilted-head posture with the water bottle upside down. Combined with the well-designed internal water outlet and drain (the outlet is located inside the casing, and the drain is on the outside, at a lower level than the outlet), it prioritizes the use of water from the upper part of the bottle. This design allows the water inside the bottle to flow fully and continuously into the eyes under the influence of gravity, meeting the needs of emergency cleaning. It avoids the problem of unusable water in the lower part of the bottle in existing simple cleaning methods, effectively improving water resource utilization and ensuring that the eyes are thoroughly and completely cleaned.

[0009] 3. Enhanced user comfort: The eyewash station features a cover that snaps into a single eye. This cover has a hollow, semi-elliptical structure that fits snugly around the eye, creating a relatively enclosed washing space. This design not only prevents water from splashing onto other parts of the face, reducing user discomfort, but also better guides the water to clean the eyes.

[0010] 4. Significantly Improved Versatility: The inner diameter of the sleeve is selected to be a widely compatible 30mm size. According to industry information and market research, common bottled water brands such as Nongfu Spring, Coca-Cola, Master Kong, Wahaha, Robust, Baishui Mountain, and Jinmailang all use a 30mm bottle opening design. This means that this eyewash station is compatible with a variety of common brands of water bottles, greatly improving its convenience and versatility. No matter where the user is, as long as there is a water bottle that meets the specifications, they can easily use this eyewash station for emergency eye cleaning. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the frontal structure of an eyewash station.

[0012] Figure 2 This is a top view of the structure of an eyewash station.

[0013] Figure 3 This is a schematic diagram of the eyewash station from an upward view.

[0014] Figure 4 This is a side view of the eyewash station.

[0015] Figure 5 This is a schematic diagram of a half-section of an eyewash station.

[0016] Figure 6 This is a schematic diagram of the cavity structure of an eyewash station.

[0017] Figure 7 This is a schematic diagram of the drain outlet structure of an eyewash station.

[0018] In the diagram: 1. Cover; 11. Cavity; 2. Sleeve; 21. Outlet; 22. Drain; 3. Pipe; 4. Vent. Detailed Implementation

[0019] 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 embodiments of this application, and not all embodiments. 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. Example 1

[0020] This embodiment provides a bottle-type eyewash station, the specific structure and working method of which are as follows: Figure 1-7 As shown, the eyewash station mainly includes a cover 1 for engaging with a single eye. The cover 1 has a hollow semi-elliptical structure. This design allows the cover 1 to fit tightly around the eye, forming a relatively enclosed eyewash space, while ensuring that the cleaning water can smoothly enter and exit the cavity 11 inside the cover 1. At the center of the inside of the cover 1, a sleeve 2 extends vertically downward. The sleeve 2 is a vertically arranged straight cylinder, and a water outlet 21 is formed at the center of its top. The main function of the water outlet 21 is to spray cleaning water. It is arranged along the axial direction of the sleeve 2 and placed inside the sleeve 2 to ensure that the cleaning water can be sprayed directly onto the eye.

[0021] Around the outlet 21, multiple drain outlets 22 are evenly and spaced apart. The drain outlets 22 are also arranged along the axial direction of the sleeve 2, but are located on the outside of the sleeve 2. The horizontal height of the drain outlets 22 is lower than that of the outlet 21. This design can ensure that the cleaning water can flow smoothly during the cleaning process. When the cleaning water is sprayed out from the outlet 21 to clean the eyes, it will fall to the bottom of the cavity 11 under its own gravity, and then flow out of the cover 1 along the drain outlets 22 around it, thereby realizing rapid emergency cleaning of the eyes.

[0022] The lower end of the sleeve 2 has an internal thread that connects to the mouth of the water bottle. This design allows the sleeve 2 to replace the bottle cap and connect to existing mineral water or purified water bottles. When in use, the user only needs to tighten the sleeve 2 onto the mouth of the water bottle containing clean water, and then manually squeeze the body of the water bottle to spray the clean water inside out through the outlet 21 by taking advantage of the change in the physical volume of the water bottle, so as to clean the eyes.

[0023] To ensure that the sleeve 2 can be connected to a variety of common water bottles, the inner diameter of the sleeve 2 is selected to be a widely compatible 30mm size. According to industry information and market research, common drinking water brands such as Nongfu Spring, Coca-Cola, Master Kong, Wahaha, Robust, Baishui Mountain, and Jinmailang all use a 30mm bottle mouth design. Therefore, this eyewash station is compatible with these brands of water bottles, improving its convenience and versatility.

[0024] Regarding material selection, this eyewash station can be made entirely of soft silicone, which has good skin-friendliness and provides a more comfortable experience during use. However, to ensure the connection stability between the sleeve 2 and the bottle, the cover 1 can also be made of soft silicone, while the sleeve 2 can be made of hard plastic. The soft silicone ensures that the cover 1 fits snugly around the eyes, while the hard plastic provides sufficient strength and stability to ensure a firm and reliable connection between the sleeve 2 and the water bottle. The connection can be achieved through heat vulcanization, which is both strong and reliable, ensuring the stability and safety of the eyewash station during use.

[0025] Instructions for use: First, select an existing water bottle filled with clean water (such as mineral water or purified water), ensuring that the bottle opening size matches the internal thread of the eyewash unit 2. As described above, most common 30mm bottle opening sizes are suitable, such as Nongfu Spring and Coca-Cola bottles. Then, unscrew the original bottle cap and connect the eyewash unit 2 tightly to the bottle opening using the lower internal thread, ensuring a leak-free connection. Since this eyewash unit does not have a conduit 3, to ensure the cleaning water flows smoothly into the eyes and fully utilizes the bottle's internal thread... For internal water source, the user needs to adopt a tilted-back posture. Specifically, the user should stand or sit in a suitable position and slowly tilt their head back so that their face is facing the sky. At the same time, adjust the body posture to maintain stability. While maintaining the tilted-back posture, invert the water bottle connected to the eyewash station so that the eyewash station cover 1 hangs naturally in front of the eyes. Slowly fasten the cover 1 around the eyes that need to be washed, ensuring that the cover 1 fits tightly against the skin of the eyes to form a relatively closed eyewash space. At this time, avoid excessive pressure on the eyes by the cover 1 to avoid causing discomfort.

[0026] After confirming that the cover 1 is securely fastened, the user holds the water bottle firmly with one hand and gently squeezes the bottle with the other. By manually applying pressure, the physical volume of the water bottle is changed, causing the clean water inside to be squeezed and sprayed out through the outlet 21 at the top of the cover 2. After the cleaning water is sprayed out of the outlet 21, it is sprayed directly onto the eyes to rinse them. After rinsing the eyes, the cleaning water falls to the bottom of the cavity 11 inside the cover 1 under its own gravity, and then flows out of the cover 1 through the drain outlets 22 around the perimeter. During the cleaning process, the user can continue to squeeze the water bottle as needed to keep the cleaning water spraying out continuously. Since the user tilts their head back and uses the water bottle upside down, the water in the upper part of the bottle is used first, which ensures that the water in the bottle flows into the eyes fully and continuously under the action of gravity, meeting the needs of emergency cleaning.

[0027] If the fit between the eyewash station 1 and the eyes changes during the cleaning process, or if the water flow is unstable, the user can adjust their head posture or the pressure of their hands on the water bottle to restore normal cleaning. After cleaning the eyes, the user should stop squeezing the water bottle, remove the water bottle from the eyes, and slowly return their head to a normal posture. Unscrew the connection between the eyewash station and the water bottle, and store the eyewash station properly for future use. The used water bottle can be disposed of in accordance with relevant regulations.

[0028] Through the above usage method, the bottle-type eyewash station of this embodiment can achieve rapid and effective emergency cleaning of the eyes by using reasonable posture and operation method without having the conduit 3 structure, providing users with a convenient and reliable eye cleaning solution in emergency situations. Example 2

[0029] The bottle-type eyewash station in this embodiment is an improvement on Embodiment 1 to meet the needs of people with neck discomfort, such as... Figure 1-7 As shown, a conduit 3 is added in the center of the inner part of the sleeve 2. The outer wall of the conduit 3 is provided with external threads, and the corresponding position inside the sleeve 2 is provided with matching internal threads. The conduit 3 and the sleeve 2 are detachably connected by threads. This connection method allows users to choose whether to install the conduit 3 according to their own needs, and also facilitates the cleaning and replacement of the conduit 3. The length of the conduit 3 is designed to reach the bottom of the water bottle, ensuring that water can be drawn from the bottom of the water bottle. The conduit 3 is made of plastic material with a certain degree of flexibility and strength, which can be smoothly inserted into the water bottle and bend with the tilt and pressure of the water bottle, without easily deforming or breaking due to pressure, ensuring that the cleaning water can be smoothly delivered through the conduit 3.

[0030] Instructions for use: Same as in Example 1, select an existing water bottle containing clean water (such as mineral water or purified water), and ensure that the size of the bottle opening matches the internal thread of the eyewash set 2. Connect the eyewash set 2 to the bottle opening tightly through the internal thread at the lower end. If the user has neck discomfort, further screw the tube 3 into the inside of the set 2 so that the tube 3 extends to the bottom of the water bottle. Since the eyewash set in this embodiment is equipped with a tube 3, its usage is different from that in Example 1. The user stands or sits in a suitable position, bends over and lowers their head so that their face hangs down naturally, and the cover 1 is in a suitable position with the eyes so that it can be fastened. This posture can ensure that during the subsequent cleaning process, when the water bottle is placed normally or slightly tilted, the tube 3 can smoothly guide the water from the bottom of the water bottle to the outlet 21.

[0031] While maintaining a bent-over posture, place the water bottle connected to the eyewash station (with the tubing 3 installed) in a suitable position, such as on a stable table or by gently supporting the water bottle with your hand. Slowly fasten the cover 1 of the eyewash station around the eyes that need to be cleaned, ensuring that the cover 1 fits tightly against the skin of the eyes to form a relatively closed eyewash space. After confirming that the cover 1 is securely fastened, the user gently squeezes the water bottle body with their hand. By manually applying pressure, the physical volume of the water bottle is changed, causing the clean water inside the bottle to be squeezed and enter the sleeve 2 along the tubing 3. Then, it is sprayed out from the water outlet 21 at the top of the sleeve 2. After the cleaning water is sprayed out from the water outlet 21, it is sprayed directly onto the eyes to rinse them. After the cleaning water has finished cleaning the eyes, it falls to the bottom of the cavity 11 inside the cover 1 under its own gravity, and then flows out of the cover 1 along the drain outlet 22 around the perimeter. Since the tubing 3 extends into the bottom of the water bottle, it can prioritize sending the water from the bottom of the water bottle to the water outlet 21, ensuring a sufficient and continuous water supply during the cleaning process.

[0032] During the cleaning process, the user can continuously squeeze the water bottle as needed to maintain a continuous spray of cleaning water. If the fit between the cover 1 and the eye area changes or the water flow becomes unstable during the cleaning process, the user can adjust their head posture or the squeezing force of their hands on the water bottle to restore normal cleaning. After the eye cleaning is complete, the user stops squeezing the water bottle. If the tube 3 is detachable, the tube 3 can be unscrewed from the cover 2, and then the connection between the eyewash station and the water bottle can be unscrewed. The eyewash station should be properly stored for future use. The used water bottle can be disposed of in accordance with relevant regulations.

[0033] This embodiment adds a conduit 3 inside the sleeve 2, making it convenient for people with neck discomfort to use the eyewash station. The bending and lowering posture, combined with the conduit 3 extending to the bottom of the water bottle, allows for priority use of the water in the lower part of the bottle, providing a sufficient and continuous water source for eye washing. This avoids the problem of not being able to use the eyewash station by tilting the head back and inverting the water bottle due to neck discomfort. It also solves the problem of insufficient water utilization in the lower part of the water bottle that may occur when tilting the head back and inverting the water bottle in Embodiment 1. The threaded connection design of the conduit 3 increases the flexibility and applicability of the eyewash station. Users can freely choose whether to install the conduit 3 according to their own physical condition and usage needs, further improving the user experience of the product.

[0034] Through the improvements in Example 2, this bottle-type eyewash station not only meets the needs of the general population but also better caters to the special needs of people with neck discomfort, expanding the product's applicability and providing a convenient and effective emergency eye washing solution for more people in emergency situations. Example 3

[0035] The bottle-type eyewash station of this embodiment is a further improvement on Embodiment 1 or Embodiment 2, aiming to further enhance the smoothness of the cleaning water and avoid the problem of poor water flow caused by the outflowing cleaning water and the incoming air sharing the same outlet 21. Figure 2-3 As shown in Figure 6, vents 4 are added around the water outlet 21. The position of the vents 4 can be evenly or unevenly distributed around the water outlet 21 according to actual design requirements. For example, multiple vents 4 can be symmetrically distributed around the water outlet 21 to ensure that air can enter the water bottle evenly. The number of vents 4 can be determined according to specific circumstances, and generally 2-6 can be set to ensure sufficient air intake.

[0036] To prevent the vent 4 from spraying cleaning water during use, its size is reduced to increase the resistance to water flow. Based on the principle of flow balance, when water flows out, the air inlet needs to replenish an equal volume of air to prevent negative pressure from forming inside the bottle and interrupting the water flow. Based on the conservation of volumetric flow rate: Q_water = Q_air → A_outlet21 * v_water = A_inlet * v_air, where Q_water is the volumetric flow rate of water, Q_air is the volumetric flow rate of air, A_outlet21 is the cross-sectional area of ​​outlet 21, v_water is the water velocity, and A_inlet... Let v_air be the cross-sectional area of ​​the air inlet (i.e., vent 4), and v_air be the air velocity. Since the water velocity v_water is mainly driven by hand pressure and gravity, while the air velocity v_air is driven by pressure difference, and the air density is much smaller than that of water, the air velocity is higher under the same pressure difference. Therefore, the cross-sectional area of ​​the air inlet is smaller than that of the water outlet 21. After multiple experiments and calculations, the ratio of the size of the vent 4 to the diameter of the water outlet 21 is preferably 1:1.4-2. For example, if the diameter of the water outlet 21 is 5mm, then the diameter of the vent 4 can be selected in the range of 2.5-3.57mm.

[0037] To avoid water surface tension clogging the air inlet, the diameter of the air inlet must be no less than 2mm. If the diameter of the air inlet 4 is too small, the surface tension of the water will make it difficult for air to enter the water bottle smoothly, thus affecting the flow of the cleaning water. Therefore, under the premise of meeting the flow balance and avoiding water surface tension clogging, the size of the air inlet 4 should be reasonably determined.

[0038] Depending on whether the device has a conduit 3 structure, refer to the same usage method in the corresponding embodiment 1 or embodiment 2. When the water bottle is squeezed, the cleaning water inside the bottle is sprayed out from the water outlet 21 to clean the eyes. At the same time, due to the decrease in pressure inside the bottle, external air is promptly replenished into the water bottle through the vent 4 to prevent negative pressure from forming inside the bottle and causing the water flow to be interrupted. The small size design of the vent 4 effectively prevents the cleaning water from being sprayed out from the vent 4, ensuring the smooth progress of the cleaning process.

[0039] This embodiment effectively solves the problem of poor water flow caused by the shared use of the water outlet 21 by adding a vent 4 around the water outlet 21 and reasonably designing the size of the vent 4. While ensuring that the cleaning water is sprayed out smoothly, it avoids the situation of the cleaning water being sprayed out through the vent 4, thereby improving the use effect and user experience of the eyewash station.

[0040] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0041] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0042] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. 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 the embodiments of this application.

Claims

1. A bottle-type eyewash station, characterized in that: include The cover is designed to fit into a single eye and has an internal cavity for providing an eyewash space and allowing washing water to enter and exit. The sleeve extends vertically downward to the center of the inside of the cover, and a water outlet for spraying cleaning water is formed at the center of its top. The water outlet is arranged along the axial direction of the sleeve and is located inside the sleeve. Multiple drain outlets for discharging cleaning water are evenly and spaced around the water outlet. The drain outlets are arranged along the axial direction of the sleeve and are located on the outside of the sleeve. The horizontal height of the drain outlets is lower than that of the water outlet. The lower end of the sleeve has an internal thread that connects to the mouth of the water bottle, replacing the bottle cap. By manually squeezing the water bottle, the physical volume change of the water bottle causes the clean water inside to spray out through the outlet. After cleaning the eyes, the cleaning water falls to the bottom of the cavity under its own gravity and then flows out through the drain outlet around the perimeter.

2. The bottle-type eyewash station according to claim 1, characterized in that: The inner diameter of the sleeve is 30mm, which is suitable for the bottle openings of common drinking water brands.

3. The bottle-type eyewash station according to claim 1, characterized in that: A tube is detachably connected to the center of the inner part of the bottle. The tube can be inserted into the bottom of the water bottle to prioritize the delivery of water from the bottom of the bottle to the outlet.

4. The bottle-type eyewash station according to claim 3, characterized in that: The outer wall of the conduit is provided with external threads, and the corresponding position inside the sleeve is provided with internal threads that are compatible with the external threads. The conduit and the sleeve are detachably connected through the external and internal threads.

5. The bottle-type eyewash station according to claim 1, characterized in that: A vent is added around the water outlet. The vent is used to replenish the water bottle with an equal volume of air when the cleaning water flows out, so as to prevent negative pressure from forming inside the bottle and causing the water flow to be interrupted.

6. The bottle-type eyewash station according to claim 5, characterized in that: The ratio of the size of the vent to the diameter of the water outlet is 1:1.4-2, and the diameter of the vent is not less than 2mm, in order to avoid water surface tension clogging the air inlet, and at the same time increase the resistance of the cleaning water flow to prevent the vent from spraying cleaning water.

7. The bottle-type eyewash station according to claim 6, characterized in that: There are multiple vents, which are evenly or unevenly distributed around the water outlet to allow air to enter the water bottle evenly.

8. The bottle-type eyewash station according to any one of claims 1-7, characterized in that: The cover has a hollow, semi-elliptical structure.

9. The bottle-type eyewash station according to any one of claims 1-7, characterized in that: The sleeve is a vertically arranged straight cylinder.

10. The bottle-type eyewash station according to any one of claims 1-7, characterized in that: Both the water outlet and the water drain are circular holes.

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