Ultrapure water machine

By designing an automatic rebound isolation door and an ultraviolet disinfection system in the ultrapure water system, the problem of nozzle contamination was solved, ensuring the sterility of the nozzles and improving the purity of the water and the reliability of the experimental results.

CN223837112UActive Publication Date: 2026-01-27GANSU ACAD OF MEMBRANE SCI & TECH
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Patent Information

Application Number
CN202520188942.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-01-27
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

The nozzles of ultrapure water systems are directly exposed to the external environment during use, making them susceptible to contamination by dust and microorganisms in the air, which can affect the purity of the water and the accuracy of experimental results.

Method used

An isolation door mechanism with automatic rebound was designed. When the nozzle is not in use, it is sealed in the installation cavity. The opening and closing of the isolation door is controlled by a spring and a sensor. It is also equipped with an ultraviolet lamp for automatic disinfection to ensure the sterility of the nozzle.

Benefits of technology

It effectively reduces the risk of nozzle contamination, ensures water purity, improves the reliability and accuracy of experimental results, and has a simple structure that is easy to operate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223837112U_ABST
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Abstract

The utility model relates to the technical field of ultrapure water machines, in particular to an ultrapure water machine. When the sprayer is not used, the isolation door is in a closed state, and the mounting cavity is closed, so that the sprayer is protected from being invaded by pollutants such as dust and microorganisms in external air. When the ultrapure water machine needs to be used for receiving water, the isolation door is manually opened, at the moment, the spray head is exposed out of the mounting cavity, and normal water receiving operation can be carried out. After water receiving is completed, the external force applied to the isolation door is released, the isolation door automatically rebounds without the external force, the installation cavity is closed again, and the spray head is isolated from the outside. According to the ultrapure water machine, through automatic rebounding and closing of the isolation door, when the ultrapure water machine is not used, the spray head can be isolated from the external environment, the opportunity that pollutants in air are attached to the spray head is greatly reduced, and the risk that the spray head is polluted is reduced. The device can be widely applied to the technical field of ultrapure water machines.
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Description

Technical Field

[0001] This utility model relates to the field of ultrapure water machine technology, specifically, to an ultrapure water machine. Background Technology

[0002] Ultrapure water systems are widely used in modern laboratories. This is because ultrapure water plays a crucial role in numerous scientific research and experimental analyses. Many experiments, such as cell culture, chemical analysis, and gene sequencing, require extremely high water purity, and only ultrapure water can meet the accuracy and reliability requirements of these experiments.

[0003] However, during the use of an ultrapure water system, the nozzles are directly exposed to the external environment and come into contact with the air. Dust, microorganisms, and other contaminants in the air may adhere to the nozzles, causing contamination. Once the nozzles are contaminated, the ultrapure water will be polluted during subsequent water collection, making it no longer pure and clean, thus affecting the accuracy and reliability of experimental results. Utility Model Content

[0004] In existing ultrapure water systems, the nozzles are directly exposed to the external environment and come into contact with the air. This can lead to contamination of the nozzles due to dust, microorganisms, and other pollutants. This invention addresses this problem by proposing an ultrapure water system.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] An ultrapure water machine includes an ultrapure water machine body and a nozzle. The outer wall of the ultrapure water machine body is recessed inward to form an installation cavity. The nozzle is disposed in the installation cavity. An isolation door is provided at the opening of the installation cavity. The isolation door can automatically spring back and close the installation cavity without external force.

[0007] When the nozzle is not in use, the isolation door is closed, sealing the mounting cavity and protecting the nozzle from dust, microorganisms, and other contaminants in the outside air. When water needs to be dispensed from the ultrapure water system, the isolation door is manually opened, exposing the nozzle from the mounting cavity for normal water dispensing. After dispensing, the force applied to the isolation door is released, and the door automatically springs back shut, closing the mounting cavity again and isolating the nozzle from the outside environment. This automatic spring-loaded closure of the isolation door effectively isolates the nozzle from the external environment when the ultrapure water system is not in use, significantly reducing the chance of airborne contaminants adhering to the nozzle and lowering the risk of contamination.

[0008] Preferably, the bottom wall of the mounting cavity is provided with a mounting groove for the isolation door to enter. A spring is fixed on the bottom wall of the mounting groove. In a natural state, the isolation door moves upward under the action of the spring and closes the mounting cavity.

[0009] Under normal conditions, the spring is extended, pushing the isolation door upwards to close the mounting cavity. When water needs to be collected, external force is applied to the isolation door, causing it to move downwards against the spring's elasticity and enter the mounting slot. Workers can then place a container into the mounting cavity to collect water. When the external force is removed, the spring returns, pushing the isolation door back to its original position and closing the mounting cavity again. This spring-driven automatic closing mechanism for the isolation door is simple in structure and less prone to malfunction.

[0010] Preferably, the top wall of the installation cavity is provided with a sensing groove. When the isolation door moves upward under the action of the spring and closes the installation cavity, one end of the isolation door extends into the sensing groove, and a handle is provided on the side wall of the isolation door.

[0011] Under normal conditions, the spring force causes the isolation door to move upwards, with one end of the door accurately extending into the sensor groove, thus completely sealing the mounting cavity. The design of the sensor groove ensures that the isolation door fits tightly when closed, effectively improving the sealing performance of the mounting cavity and minimizing the intrusion of external contaminants.

[0012] Preferably, the installation cavity is equipped with an ultraviolet lamp and a control system for controlling the ultraviolet lamp to turn on, and the sensing slot is equipped with a sensing device for sensing the position of the isolation door. The sensing device can send a sensing signal to the control system to control the opening and closing of the ultraviolet lamp.

[0013] A spring pushes the isolation door upwards, with one end extending into the sensing slot. The sensor detects the door is closed and sends a signal to the control system, which then activates the ultraviolet lamp to sterilize the nozzles inside the mounting cavity. When water needs to be dispensed, external force presses the isolation door downwards, the sensor detects the door opening, and sends a signal to the control system, which then shuts off the ultraviolet lamp. After water dispensing, the isolation door closes again under spring pressure, and the ultraviolet lamp restarts for disinfection. Through the sensing device and control system, the ultraviolet lamp is automatically switched on and off, and the nozzles are disinfected promptly when the isolation door is closed, ensuring the nozzles remain sterile.

[0014] Preferably, the sensing device includes an infrared transmitter and an infrared receiver disposed on the side wall of the sensing slot. The infrared transmitter and the infrared receiver are respectively disposed on both sides of the isolation door. When the isolation door isolates the infrared transmitter and the infrared receiver, the ultraviolet lamp is turned on.

[0015] Under normal conditions, the isolation door moves upward under the action of a spring, with one end extending into the sensing slot. At this time, the isolation door is positioned between the infrared transmitter and receiver, blocking the reception of infrared rays. Upon receiving this signal, the control system activates the ultraviolet lamp to disinfect the nozzles within the installation cavity. When water needs to be dispensed, external force presses down on the isolation door, causing it to move downward. The infrared receiver can then receive the infrared rays emitted by the transmitter. Upon receiving this change signal, the control system deactivates the ultraviolet lamp. After water dispensing is complete, the isolation door rises back to its original position under the action of the spring, blocking infrared rays again, and the ultraviolet lamp restarts. This design ensures that the ultraviolet lamp only activates after the isolation door completely seals the installation cavity, preventing ultraviolet light leakage and potential harm to users.

[0016] Preferably, an indicator light is provided on the outer wall of the main body of the water purifier, and the circuit where the indicator light is located is connected in parallel with the circuit where the ultraviolet lamp is located.

[0017] When the circuit containing the UV lamp is connected and the UV lamp is turned on for disinfection, the indicator light will also illuminate because the circuit containing the indicator light is connected in parallel with the circuit containing the UV lamp. Conversely, when the UV lamp is turned off, the indicator light will also turn off. This allows users to visually understand the working status of the UV lamp from the outside, making it easier to judge the disinfection status inside the installation cavity. It also allows staff to promptly detect any problems with the circuit containing the UV lamp.

[0018] Preferably, the inner wall of the mounting cavity and the isolation door are both made of metal and their surfaces are polished.

[0019] Metal materials themselves possess high strength and wear resistance, enabling long-term stable use without easy damage. Polishing facilitates the reflection of ultraviolet rays within the mounting cavity, allowing the side of the nozzle facing away from the ultraviolet lamp to also receive ultraviolet light, thereby enhancing the disinfection effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the ultrapure water system in the embodiment;

[0021] Figure 2 This is a schematic diagram of the internal structure of the ultrapure water system after the isolation door is opened in the embodiment.

[0022] Figure 3 This is a cross-sectional view of the ultrapure water system in the embodiment;

[0023] Figure 4 for Figure 3 A magnified view of A in the middle.

[0024] The names of the parts referred to by the numbers in the attached diagram are as follows:

[0025] 110. Ultrapure water system body; 1101. Mounting cavity; 1102. Mounting slot; 1104. Sensor slot; 120. Nozzle; 130. Isolation door; 1301. Handle; 140. Spring; 150. Ultraviolet lamp; 170. Indicator light. Detailed Implementation

[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0027] Example

[0028] like Figures 1-4 As shown; the ultrapure water system in this embodiment includes an ultrapure water system body 110, the outer wall of which is recessed inward to form an installation cavity 1101. An installation groove 1102 is provided on the bottom wall of the installation cavity 1101 for the entry of an isolation door 130, and a spring 140 is fixed on the bottom wall of the installation groove 1102. A nozzle 120 is disposed on the top wall of the installation cavity 1101. An isolation door 130 is provided at the opening of the installation cavity 1101, and a handle 1301 is provided on the isolation door 130. A sensing groove 1104 is provided on the top wall of the installation cavity 1101, and a sensing device for sensing the position of the isolation door 130 is provided within the sensing groove 1104. The sensing device includes an infrared emitter and an infrared receiver disposed on the side wall of the sensing groove 1104, and the infrared emitter and infrared receiver are respectively disposed on both sides of the isolation door 130. An ultraviolet lamp 150 and a control system for controlling the activation of the ultraviolet lamp 150 are provided within the installation cavity 1101. An indicator light 170 is provided on the outer wall of the ultrapure water system body 110. The inner wall of the mounting cavity 1101 and the isolation door 130 are both made of metal and their surfaces are polished.

[0029] The operating principle of the ultrapure water system in this embodiment is as follows:

[0030] When the ultrapure water system is not in use, spring 140 is in its naturally extended state, pushing the isolation door 130 upwards. One end of the isolation door 130 extends into the sensing groove 1104, sealing the mounting cavity 1101. At this time, the infrared rays emitted by the infrared transmitter are blocked by the isolation door 130, and the infrared receiver cannot receive the signal. The control system then controls the ultraviolet lamp 150 to turn on, disinfecting and sterilizing the nozzle 120. Simultaneously, indicator light 170 illuminates.

[0031] When water needs to be collected, the user manually presses handle 1301, causing the isolation door 130 to move downwards against the spring force of spring 140. At this time, the infrared receiver receives infrared light, the control system controls the ultraviolet lamp 150 to turn off, and the indicator light 170 to go out. The user can then place the container into the mounting cavity 1101 to collect water. After collecting water, the user releases the isolation door 130, and the spring 140 returns, pushing the isolation door 130 back to its original position. One end of the isolation door 130 extends back into the sensing slot 1104, the state of the infrared transmitter and receiver changes, the ultraviolet lamp 150 turns back on, and the indicator light 170 lights up.

[0032] The isolation door 130 can automatically isolate the nozzle 120 from the external environment when the ultrapure water machine is not in use, reducing the risk of contamination.

[0033] The sensing device is connected to the isolation door 130, so that the control system can control the opening and closing of the ultraviolet lamp 150 in a timely manner according to the opening and closing of the isolation door 130.

[0034] The ultraviolet lamp 150 can remove bacteria and other substances from the installation cavity 1101, preventing these substances from contaminating the nozzle 120. The metal material and polished finish of the inner wall of the installation cavity 1101 and the isolation door 130 facilitate ultraviolet reflection, improving the comprehensiveness of disinfection. The indicator light 170 located on the outside of the ultrapure water machine body 110 allows users to easily understand the working status of the ultraviolet lamp 150, and enables staff to promptly detect any malfunctions in the indicator light 170's wiring.

[0035] In summary, the above are merely preferred embodiments of this embodiment. All equivalent changes and modifications made in accordance with the scope of the patent application of this embodiment shall fall within the scope of the patent of this embodiment.

Claims

1. An ultrapure water system; comprising an ultrapure water system body (110) and a nozzle (120), characterized in that: The outer wall of the ultrapure water machine body (110) is recessed inward to form an installation cavity (1101). The nozzle (120) is installed in the installation cavity (1101). An isolation door (130) is provided at the opening of the installation cavity (1101). The isolation door (130) can automatically rebound and close the installation cavity (1101) without external force.

2. The ultrapure water system according to claim 1, characterized in that: The bottom wall of the mounting cavity (1101) is provided with a mounting groove (1102) for the isolation door (130) to enter. A spring (140) is fixed on the bottom wall of the mounting groove (1102). In its natural state, the isolation door (130) moves upward under the action of the spring (140) and closes the mounting cavity (1101).

3. The ultrapure water system according to claim 2, characterized in that: The top wall of the mounting cavity (1101) is provided with a sensing groove (1104). When the isolation door (130) moves upward under the action of the spring (140) and closes the mounting cavity (1101), one end of the isolation door (130) extends into the sensing groove (1104). A handle (1301) is provided on the side wall of the isolation door (130).

4. The ultrapure water system according to claim 3, characterized in that: The mounting cavity (1101) is equipped with an ultraviolet lamp (150) and a control system for controlling the opening of the ultraviolet lamp (150). The sensing slot (1104) is equipped with a sensing device for sensing the position of the isolation door (130). The sensing device can send a sensing signal to the control system to control the opening and closing of the ultraviolet lamp (150).

5. An ultrapure water system according to claim 4, characterized in that: The sensing device includes an infrared transmitter and an infrared receiver installed on the side wall of the sensing slot (1104). The infrared transmitter and the infrared receiver are respectively installed on both sides of the isolation door (130). When the isolation door (130) isolates the infrared transmitter and the infrared receiver, the ultraviolet lamp (150) is turned on.

6. An ultrapure water system according to claim 4, characterized in that: An indicator light (170) is provided on the outer wall of the main body of the water purifier. The circuit where the indicator light (170) is located is connected in parallel with the circuit where the ultraviolet lamp (150) is located.

7. An ultrapure water system according to claim 4, characterized in that: The inner wall of the mounting cavity (1101) and the isolation door (130) are both made of metal and their surfaces are polished.