Sanitary waterproof chuck type sensor shell

By using a 316L stainless steel housing and PTFE seals, combined with a standard 3A chuck structure, the problems of insufficient protection and inconvenient installation of sensor housings in the UV water treatment industry have been solved, achieving a sensor housing design that is efficient to install and has a long lifespan.

CN224202474UActive Publication Date: 2026-05-05ULTRAVIOLET TECHNOLOGY (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ULTRAVIOLET TECHNOLOGY (SHANGHAI) CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing sensor housings offer insufficient protection in the UV water treatment industry, are inconvenient to install, are susceptible to chemical corrosion and UV aging, and their sealing structure is prone to loosening, affecting the normal operation of the water treatment system.

Method used

It adopts a 316L stainless steel housing and PTFE seals, combined with a standard 3A chuck structure, and features a chuck-type sight glass and sealing groove to ensure sealing performance and ease of installation.

Benefits of technology

This improves the sensor's protection performance, extends its service life, reduces operation and maintenance costs, and ensures the stable operation of the water treatment system and the accuracy of monitoring data.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sensor protection equipment, in particular to a sanitary waterproof chuck type sensor shell which comprises a shell seat, an upper thread is arranged on the outer wall of the outer portion of one side of the shell seat, a lower thread is arranged on the inner wall of the end portion of the other side of the shell seat, and a chuck type sight glass is arranged in the lower thread. A sealing piece for sealing one end of the shell base is arranged at the position, relative to the lower thread, of the end of the shell base, the outer wall of the upper thread is sleeved with a locking cap, a standard 3A chuck is integrally and fixedly installed on the outer wall of the shell base, and a pipe clamp sealing ring is arranged in the standard 3A chuck. According to the utility model, 316L stainless steel is adopted as the shell body, and the sealing element made of polytetrafluoroethylene is combined, so that chemical corrosion, ultraviolet aging and high-temperature influence in the ultraviolet water treatment industry can be comprehensively resisted, the service life of the shell is greatly prolonged, the normal work of the UV sensor is ensured, and the accuracy of monitoring data of a water treatment system is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of sensor protection equipment technology, and in particular to a sanitary waterproof chuck-type sensor housing. Background Technology

[0002] A sensor is a detection device that can sense the information being measured and transform the sensed information into an electrical signal or other required form of information output according to a certain rule, so as to meet the requirements of information transmission, processing, storage, display, recording and control.

[0003] In the ultraviolet (UV) water treatment industry, UV sensors are core monitoring components ensuring water treatment effectiveness. Accurate monitoring of UV intensity is crucial for water purification. However, the industry's working environment is extremely complex, involving long-term exposure to water, chemicals, and UV radiation. Existing sensor housings are ill-suited to this environment, exhibiting several drawbacks: First, housings made of ordinary materials are susceptible to chemical corrosion and UV aging, leading to decreased protective performance and shortened lifespan. Second, traditional connection and sealing structures are prone to loosening and seal failure after prolonged use, allowing water and chemicals to seep in, damaging the UV sensor and interfering with the normal operation of the water treatment system. Third, most housings have complex installation methods, increasing the difficulty and cost of installation and maintenance, failing to meet the industry's demand for efficient operation and maintenance. Therefore, developing a sensor housing that can adapt to the special environment of the UV water treatment industry, is easy to install, and offers excellent protective performance is urgently needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems of insufficient protection and inconvenient installation of sensor housings in the ultraviolet water treatment industry, and to propose a sanitary waterproof chuck-type sensor housing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sanitary waterproof chuck-type sensor housing includes a housing base. One side of the housing base has an upper thread on its outer outer wall, and the other side of the housing base has a lower thread on its inner wall. A chuck-type sight glass is disposed in the lower thread. A sealing element is disposed at one end of the housing base relative to the lower thread to seal one end of the housing base. A locking cap is fitted on the outer wall of the upper thread. A standard 3A chuck is integrally fixedly installed on the outer wall of the housing base, and a pipe clamp sealing ring is disposed in the standard 3A chuck.

[0007] Preferably, the sealing element includes an O-ring, a PTFE gasket, and a pipe clamp sealing ring, and the O-ring, PTFE gasket, and pipe clamp sealing ring are all made of polytetrafluoroethylene.

[0008] Preferably, the housing is made of 316L stainless steel as the housing body, and a sealing groove for placing a PTFE gasket is provided inside the housing, and the sealing groove is located on the lower threaded side wall.

[0009] Preferably, the standard 3A chuck has a standard 3A sealing groove, and the pipe clamp sealing ring is disposed in the standard 3A sealing groove.

[0010] Preferably, a locking ring is threaded into the lower thread, and a placement groove is formed in the locking ring, with the O-ring placed in the placement groove.

[0011] Preferably, the outer housing, locking ring, and locking cap are concentrically arranged, and the outer wall of the locking cap is provided with an anti-slip washer.

[0012] Preferably, the chuck-type sight glass has a frustum-shaped structure, and the O-ring is disposed on the outer wall of the middle part of the chuck-type sight glass.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This utility model uses 316L stainless steel as the outer shell and combines it with polytetrafluoroethylene sealing components to comprehensively resist chemical corrosion, ultraviolet aging and high temperature effects in the ultraviolet water treatment industry, greatly extending the service life of the outer shell, ensuring the normal operation of the UV sensor and ensuring the accuracy of the monitoring data of the water treatment system.

[0015] 2. This utility model, through the cooperation of the standard 3A chuck structure and the standard 3A clamp, makes the installation and disassembly of the housing extremely convenient. It can be quickly installed on the monitoring equipment, which facilitates the daily maintenance and repair of the equipment, improves work efficiency, and reduces operation and maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a sanitary waterproof chuck-type sensor housing proposed in this utility model;

[0017] Figure 2 This is a front sectional view of a sanitary waterproof chuck-type sensor housing proposed in this utility model;

[0018] Figure 3 An exploded view of a sanitary waterproof chuck-type sensor housing proposed in this utility model;

[0019] Figure 4 This is a partial cross-sectional schematic diagram of a sanitary waterproof chuck-type sensor housing proposed in this utility model.

[0020] In the diagram: 1. Outer housing; 2. Upper thread; 3. Lower thread; 4. Sealing groove; 5. Standard 3A chuck; 6. Pipe clamp sealing ring; 7. Locking cap; 8. PTFE gasket; 9. Chuck-type sight glass; 10. O-ring; 11. Locking pressure ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A sanitary waterproof chuck-type sensor housing includes a housing base 1. An upper thread 2 is provided on the outer wall of one side of the housing base 1, and a lower thread 3 is provided on the inner wall of the other end of the housing base 1. A chuck-type sight glass 9 is disposed within the lower thread 3. The chuck-type sight glass 9 is made of high-purity natural quartz material, which has a light transmittance ≥85% at a wavelength of 254nm, ensuring that the UV sensor accurately receives ultraviolet signals and achieves accurate monitoring. Simultaneously, through machining processes, the surface roughness of the chuck-type sight glass 9 is controlled to Ra=1.8, ensuring not only good light transmission but also improving the appearance and observation clarity of the chuck-type sight glass 9. The end of the housing base 1 is positioned relative to the lower thread 3. The housing is equipped with a sealing element that seals one end of the housing 1. A locking cap 7 is fitted on the outer wall of the upper thread 2. A standard 3A chuck 5 is integrally fixed to the outer wall of the housing 1. This structure can be used with standard 3A clamps to achieve quick and convenient installation to the location of the equipment that needs to be monitored. Compared with the traditional installation method, it greatly improves the installation efficiency, while facilitating disassembly and maintenance, effectively reducing maintenance costs and time costs. The standard 3A chuck 5 is equipped with a standard 3A sealing groove for installing a standard pipe clamp sealing ring 6, which further enhances the sealing performance of the connection between the housing 1 and the equipment, providing a reliable guarantee for the waterproof performance of the housing 1. The standard 3A chuck 5 is equipped with a pipe clamp sealing ring 6.

[0023] The sealing components include an O-ring 10, a PTFE gasket 8, and a pipe clamp seal 6. All three components are made of polytetrafluoroethylene (PTFE), which has excellent resistance to ultraviolet radiation, high temperatures, and chemical corrosion. In the harsh environment of ultraviolet water treatment, PTFE can effectively prevent damage to the sealing components from ultraviolet radiation, high temperatures, and various chemicals, maintain a good sealing effect, and prevent the infiltration of liquids and impurities.

[0024] The housing 1 is made of 316L stainless steel. 316L stainless steel has excellent corrosion resistance and can effectively resist the erosion of chemical agents and water during the UV water treatment process, ensuring that the housing 1 can be used stably for a long time in complex and harsh environments, providing a solid protective foundation for the UV sensor. The housing 1 has a sealing groove 4 for placing the PTFE gasket 8, and the sealing groove 4 is located on the side wall of the lower thread 3.

[0025] The standard 3A chuck 5 has a standard 3A sealing groove, and the pipe clamp sealing ring 6 is set in the standard 3A sealing groove.

[0026] A locking ring 11 is threaded inside the lower thread 3, and a placement groove is provided inside the locking ring 11, with an O-ring 10 placed inside the placement groove.

[0027] The outer casing 1, the locking pressure ring 11, and the locking cap 7 are arranged concentrically, and the outer wall of the locking cap 7 is provided with an anti-slip washer.

[0028] The chuck-type sight glass 9 has a frustum structure. When it is engaged with the O-ring 10, it can form a tighter seal than a normal planar structure under the action of locking force, which significantly improves the overall waterproof performance of the housing 1 and creates a safe and stable working environment for the UV sensor. The O-ring 10 is located on the outer wall of the middle part of the chuck-type sight glass 9.

[0029] The functional principle of this utility model can be explained through the following operation methods:

[0030] When using, first install the pipe clamp sealing ring 6 in the standard 3A sealing groove opened in the standard 3A chuck 5 integrally installed on the outer wall of the housing 1, and ensure that the pipe clamp sealing ring 6 is installed in place and without twisting or deformation. Then, install the O-ring 10 and PTFE gasket 8 at the mating point between the chuck sight glass 9 and the locking pressure ring 11, so that the PTFE gasket 8 is installed in the sealing groove 4 and the O-ring 10 is installed in the mounting groove, ensuring that all sealing components are installed tightly and in accurate position.

[0031] Place the processed chuck-type sight glass 9 smoothly into the housing 1, and install the locking ring 11 and locking cap 7 in sequence. During the installation process, ensure that the chuck-type sight glass 9 with the truncated cone structure fits tightly with the O-ring 10 on the locking ring 11. Tighten the locking ring 11 evenly to make the components tightly connected and form a good sealing structure.

[0032] Using standard 3A clamps, install the assembled sensor housing onto the corresponding monitoring position of the UV water treatment equipment via the standard 3A chuck 5 structure set on the outer wall of the housing base 1. After installation, perform a sealing test on all sealed parts. Pressure tests or liquid penetration tests can be used to ensure that the waterproof performance of the housing meets the requirements. If a leak is found, promptly check the seals and installation parts, and make adjustments and repairs until the sealing standards are met.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sanitary waterproof chuck-type sensor housing, comprising a housing base (1), characterized in that, The outer wall of one side of the housing (1) is provided with an upper thread (2), and the inner wall of the other end of the housing (1) is provided with a lower thread (3). A chuck-type sight glass (9) is provided in the lower thread (3). A sealing element for sealing one end of the housing (1) is provided in the lower thread (3) at the end of the housing (1). A locking cap (7) is sleeved on the outer wall of the upper thread (2). A standard 3A chuck (5) is integrally fixedly installed on the outer wall of the housing (1). A pipe clamp sealing ring (6) is provided in the standard 3A chuck (5).

2. The sanitary waterproof chuck-type sensor housing according to claim 1, characterized in that, The sealing components include an O-ring (10), a PTFE gasket (8), and a pipe clamp seal (6), and the O-ring (10), the PTFE gasket (8), and the pipe clamp seal (6) are all made of polytetrafluoroethylene.

3. The sanitary waterproof chuck-type sensor housing according to claim 2, characterized in that, The outer casing (1) is made of 316L stainless steel as the outer casing body. The outer casing (1) has a sealing groove (4) for placing a PTFE gasket (8) and the sealing groove (4) is located on the side wall of the lower thread (3).

4. The sanitary waterproof chuck-type sensor housing according to claim 3, characterized in that, The standard 3A chuck (5) is provided with a standard 3A sealing groove, and the pipe clamp sealing ring (6) is set in the standard 3A sealing groove.

5. The sanitary waterproof chuck-type sensor housing according to claim 4, characterized in that, A locking ring (11) is threaded inside the lower thread (3), and a placement groove is provided inside the locking ring (11), and the O-ring (10) is placed in the placement groove.

6. The sanitary waterproof chuck-type sensor housing according to claim 5, characterized in that, The outer casing (1), locking ring (11) and locking cap (7) are arranged concentrically, and the outer wall of the locking cap (7) is provided with an anti-slip washer.

7. A sanitary waterproof chuck-type sensor housing according to claim 6, characterized in that, The chuck-type sight glass (9) has a frustum structure, and the O-ring (10) is located on the outer wall of the middle part of the chuck-type sight glass (9).