Ultraviolet sterilizer

Abstract

The utility model provides a kind of ultraviolet sterilizer, comprising: outer tube, inner tube, ultraviolet sterilization component and water outlet plug, first positioning part is provided in inner tube, mounting positioning ring is provided in inner tube, the inner peripheral wall of mounting positioning ring is provided with multiple water flow notches, and mounting positioning ring is abutted on first positioning part;Ultraviolet sterilization component includes mounting base, LED lamp and quartz cover;Water outlet plug is provided with water outlet pipe, inner tube is arranged in outer tube, mounting base is sealed and inserted in the first port of inner tube, mounting positioning is abutted on quartz cover, and water flow channel is formed between water flow notch and quartz cover;Water outlet plug is sealed and inserted in the second port of inner tube, water inlet pipe sequentially passes through water outlet hole and water flow channel and is communicated with inner tube, and water outlet pipe is communicated with inner tube.Realize to reduce processing difficulty, and realize compact structure design to reduce the overall volume of ultraviolet sterilizer.

Description

Technical Field

[0001] This application relates to the field of ultraviolet sterilization technology, and more particularly to an ultraviolet sterilizer. Background Technology

[0002] As people's living standards improve, sterilizers are being installed on faucets or household water dispensers to improve drinking water quality by using sterilized water. Sterilizers typically use ultraviolet (UV) LED lamps, which are installed at the water outlet of the sterilization area, adjacent to the water outlet channel, to ensure effective sterilization.

[0003] Chinese Patent Publication No. CN216426814U discloses a flowing water ultraviolet sterilizer, which includes an outer shell, a sterilization core sleeve installed inside the outer shell, and a sterilization component located in the sterilization cavity of the sterilization core sleeve. The sterilization component typically includes a sterilization light source, a protective cap, and a heat dissipation core. The sterilization light source is mounted on the heat dissipation core and protected by the protective cap. To meet installation requirements, the edge of the protective cap is flanged, and a water-passing seal is pressed onto the flange to prevent the protective cap from falling off. The flanged edge of the protective cap increases manufacturing costs, and during assembly, it is necessary to ensure that the flange overlaps the edge of the water-passing seal while also allowing water flow through the water-passing seal, resulting in a larger overall size.

[0004] Therefore, the technical problem to be solved in this application is how to design a technology that reduces the difficulty of processing and achieves a compact structural design to reduce the overall volume. Summary of the Invention

[0005] The technical problem to be solved by this application is to provide an ultraviolet sterilizer that reduces the difficulty of processing and achieves a compact structural design to reduce the overall size of the ultraviolet sterilizer.

[0006] The technical solution provided in this application is an ultraviolet sterilizer, comprising:

[0007] outer cylinder;

[0008] The inner cylinder has a first positioning part and an installation positioning ring. The inner circumferential wall of the installation positioning ring has multiple water flow notches, and the installation positioning ring abuts against the first positioning part.

[0009] An ultraviolet sterilization component includes a mounting base, an LED lamp, and a quartz cover. The mounting base is provided with a water inlet pipe and a mounting seat, which are arranged back to back. The side wall of the mounting base is also provided with a water outlet hole, which is connected to the water inlet pipe. The LED lamp is mounted on the mounting seat, and the quartz cover is mounted on the mounting seat and covers the LED lamp.

[0010] A water outlet plug, wherein a water outlet pipe is provided on the water outlet plug;

[0011] The inner cylinder is disposed in the outer cylinder, the mounting base is sealed and inserted into the first port of the inner cylinder, the mounting positioning abuts against the quartz cover, and a water flow channel is formed between the water flow notch and the quartz cover; the water outlet plug is sealed and inserted into the second port of the inner cylinder, the water inlet pipe is connected to the inner cylinder in sequence through the water outlet hole and the water flow channel, and the water outlet pipe is connected to the inner cylinder.

[0012] In one embodiment, the first positioning part is a first stepped surface formed in the inner cylinder, and the mounting positioning ring abuts against the first stepped surface;

[0013] Alternatively, the first positioning part may be a plurality of first protrusions formed on the inner wall of the inner cylinder, the plurality of first protrusions being spaced apart, and the mounting positioning ring abutting against the first protrusions.

[0014] In one embodiment, the portion of the mounting positioning ring that contacts the quartz cover forms a contact surface, which is an inclined surface or an arc surface; the contour of the contact surface matches the portion of the quartz cover that contacts it.

[0015] In one embodiment, the ultraviolet sterilization component further includes a pressure cap, which has a through opening and a plurality of pressure feet extending outward from the edge of the pressure cap;

[0016] The pressure cap is inserted into the outer cylinder, the pressure foot abuts against the inner cylinder, the water inlet pipe passes through the through-hole and extends to the outside of the outer cylinder, and the inner cylinder is sandwiched between the pressure cap and the water outlet plug.

[0017] In one embodiment, the edge of the mounting base is further provided with an annular extension, and the edge of the annular extension is provided with a plurality of clearance notches;

[0018] The annular extension abuts against the end face of the inner cylinder, and the presser foot is inserted into the corresponding clearance notch.

[0019] In one embodiment, a flow switch is also included; the flow switch includes a water wheel and a sensing circuit board, the water wheel is provided with a magnet, and the sensing circuit board is provided with a Hall switch;

[0020] The water wheel is rotatably disposed in the water inlet pipe, and the sensing circuit board is disposed outside the water inlet pipe;

[0021] The sensing circuit board is configured to trigger the LED light to operate after the Hall switch detects the rotation of the water wheel.

[0022] In one embodiment, a bracket is provided outside the water inlet pipe. The bracket has a ring structure and is fitted around the outside of the water inlet pipe. The sensing circuit board is disposed on the bracket.

[0023] In one embodiment, the inner surface of the presser foot is further provided with a stepped positioning surface, and the sensing circuit board is attached to the stepped positioning surface.

[0024] In one embodiment, a filter plate is further included, wherein a plurality of filter holes are provided on the filter plate;

[0025] The inner cylinder is provided with a second positioning part, and the filter plate is sandwiched between the second positioning part and the water outlet plug.

[0026] In one embodiment, the second positioning part is a second stepped surface formed in the inner cylinder, and the filter plate abuts against the second stepped surface;

[0027] Alternatively, the second positioning part may be a plurality of second protrusions formed on the inner wall of the inner cylinder, the plurality of second protrusions being spaced apart, and the filter plate abutting against the second protrusions.

[0028] Compared with the prior art, the advantages and positive effects of this application are as follows: By setting a first positioning part in the inner cylinder to assemble and install the positioning ring, and at the same time, the inner wall of the positioning ring is also provided with a water flow notch, after the ultraviolet sterilization component is assembled into the inner cylinder, the positioning ring will abut against the end of the quartz cover to meet the requirements for fixed installation of the quartz cover. The quartz cover does not need to be flipped, which reduces the processing difficulty of the quartz cover. In addition, the water flow notch provided in the inner wall of the positioning ring and the outer wall of the quartz cover form a water flow channel, which allows the water input from the water inlet pipe to be transported to the inside of the inner cylinder for sterilization treatment through the water flow channel. The overall circumferential dimension of the positioning ring is small, which is more conducive to realizing the overall compact design, reducing the processing difficulty, and realizing the compact design to reduce the overall volume of the ultraviolet sterilizer. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is one of the structural schematic diagrams of an embodiment of the ultraviolet sterilizer of this application; Figure 2 This is a second schematic diagram of the structure of an embodiment of the ultraviolet sterilizer of this application; Figure 3This is one of the cross-sectional views of an embodiment of the ultraviolet sterilizer of this application; Figure 4 This is a second cross-sectional view of an embodiment of the ultraviolet sterilizer of this application; Figure 5 This is an exploded view of an embodiment of the ultraviolet sterilizer of this application; Figure 6 for Figure 5 Exploded view of the UV sterilization component.

[0031] Figure label: 1. Outer cylinder; 2. Inner cylinder; 21. First positioning part; 22. Positioning ring; 23. Second positioning part; 221. Water flow gap; 222. Contact surface; 3. UV sterilization component; 31. Mounting base; 32. LED light; 33. Quartz cover; 34. Pressure cap; 311. Inlet pipe; 312. Outlet hole; 313. Mounting base; 314. Annular extension; 315. Clearance notch; 341. Presser foot; 4. Outlet plug; 41. Outlet pipe; 42. Filter plate; 421. Filter hole; 422. Step positioning surface; 5. Flow switch; 51. Water wheel; 52. Induction circuit; 53. Hollow frame; 54. Support. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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, 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.

[0033] like Figures 1-6 As shown, one embodiment of this application provides an ultraviolet sterilizer, comprising:

[0034] UV sterilizer, including:

[0035] outer cylinder 1;

[0036] The inner cylinder 2 is provided with a first positioning part 21 and an installation positioning ring 22. The inner circumferential wall of the installation positioning ring 22 is provided with a plurality of water flow notches 221, and the installation positioning ring 22 abuts against the first positioning part 21.

[0037] The ultraviolet sterilization component 3 includes a mounting base 31, an LED lamp 32, and a quartz cover 33. The mounting base 31 is provided with a water inlet pipe 311 and a mounting seat 313, which are arranged back to back. The side wall of the mounting base 31 is also provided with a water outlet 312, and the water inlet pipe 311 communicates with the water outlet 312. The LED lamp 32 is mounted on the mounting seat 313, and the quartz cover 33 is mounted on the mounting seat 313 and covers the LED lamp 32.

[0038] Water outlet plug 4, on which a water outlet pipe 41 is provided;

[0039] The inner cylinder 2 is disposed in the outer cylinder 1. The mounting base 31 is sealed and inserted into the first port of the inner cylinder 2. The mounting and positioning abuts against the quartz cover 33. A water flow channel is formed between the water flow notch 221 and the quartz cover 33. The water outlet plug 4 is sealed and inserted into the second port of the inner cylinder 2. The water inlet pipe 311 is connected to the inner cylinder 2 in sequence through the water outlet hole 312 and the water flow channel. The water outlet pipe 41 is connected to the inner cylinder 2.

[0040] Specifically, in the actual assembly process, the inner cylinder 2 can be first installed with the mounting positioning ring 22 and then installed into the outer cylinder 1. After the ultraviolet sterilization component 3 is assembled, it is inserted into the inner cylinder 2, and after the mounting base 31 is inserted into place, the quartz cover 33 will abut against the mounting positioning ring 22.

[0041] The mounting positioning ring 22 is pressed between the quartz cover 33 and the first positioning part 21. Under the action of the mounting positioning ring 22, the quartz cover 33 is pressed tightly onto the mounting base 313 to prevent the quartz cover 33 from falling off the mounting base 313. At least one sealing ring is provided between the quartz cover 33 and the side wall of the mounting base 313 to meet the requirements of sealed installation.

[0042] Since the quartz cover 33 of the ultraviolet sterilization component 3 is directly mounted on the mounting base 313, there is no need to set a flange structure. The axial positioning of the quartz cover 33 can be achieved by the mounting positioning ring 22 in the inner cylinder 2 abutting against the quartz cover 33. This simplifies the structural design of the quartz cover 33, reduces its processing difficulty, and thus reduces manufacturing costs. At the same time, as an independent component, the mounting positioning ring 22 has a relatively simple structural design and processing, making it easy to mass-produce.

[0043] In existing technologies, a certain amount of assembly space needs to be reserved to meet the overlapping requirements of the flange and the water seal sleeve, as well as the water flow requirements, resulting in a relatively large overall size. This application optimizes the structural layout, eliminating the flange design. By utilizing the water flow notch 221 on the inner circumferential wall of the mounting positioning ring 22 and the quartz cover 33 to form a water flow channel, it eliminates the need to reserve excessive space for the fit between the flange and the water seal sleeve. This achieves a compact structure for the ultraviolet sterilizer, significantly reducing its overall size and making it more suitable for applications in scenarios with strict space constraints, such as faucets and household water dispensers.

[0044] The water flow channel formed between the multiple water flow notches 221 on the inner circumferential wall of the mounting positioning ring 22 and the quartz cover 33 ensures that water flows smoothly from the water outlet 312 of the mounting base 31 into the inner cylinder 2. The water flow path is rationally designed, avoiding water flow obstruction caused by structural interference. At the same time, as the water flows through the water flow channel, it ensures effective irradiation of the water by ultraviolet rays, improving the stability and reliability of the sterilization effect.

[0045] In one embodiment, the first positioning part 21 is a first stepped surface formed in the inner cylinder 2, and the mounting positioning ring 22 abuts against the first stepped surface. Specifically, the first positioning part 21 may be formed on the first stepped surface in the inner cylinder 2 to position and assemble the mounting positioning ring 22. Alternatively, the first positioning part 21 may be a plurality of first protrusions formed on the inner wall of the inner cylinder 2, with the plurality of first protrusions spaced apart, and the mounting positioning ring 22 abuts against the first protrusions. Specifically, the first protrusions protrude from the inner wall of the inner cylinder 2, and the mounting positioning ring 22 is positioned and assembled through the first protrusions.

[0046] In one embodiment, the portion of the mounting positioning ring 22 that contacts the quartz cover 33 forms a contact surface 222, which is an inclined surface or an arc surface; the contour of the contact surface 222 matches the portion of the quartz cover 33 that contacts it.

[0047] Specifically, the end of the quartz cover 33 can be a hemispherical structure (such as...). Figure 3 As shown), it can also be a flat plate structure (such as...). Figure 4 (As shown). In order to better position the quartz cover 33 by means of the mounting positioning ring 22, the contact surface 222 of the mounting positioning ring 22 is designed to match the part that contacts the quartz cover 33, so that the quartz cover 33 can be positioned and installed more accurately.

[0048] The contact surface 222 matches the contour of the contact part of the quartz cover 33, ensuring the tightness and stability of the contact between the two, avoiding the loosening or displacement of the quartz cover 33 due to poor contact, and improving the reliability of assembly.

[0049] In one embodiment, the ultraviolet sterilization component 3 further includes a pressure cap 34, which has a through opening and a plurality of pressure feet 341 extending outward from the edge of the pressure cap 34.

[0050] The pressure cap 34 is sealed and inserted into the outer cylinder 1, the pressure foot 341 abuts against the inner cylinder 2, the water inlet pipe 311 passes through the through-hole and extends to the outside of the outer cylinder 1, and the inner cylinder 2 is sandwiched between the pressure cap 34 and the water outlet plug 4.

[0051] Specifically, after the inner cylinder 2 is inserted into the outer cylinder 1, the pressure cap 34 is sealed and inserted into the outer cylinder 1, and the multiple pressure feet 341 extending from its edge directly abut against the inner cylinder 2. At the same time, the water outlet plug 4 is also clamped in the outer cylinder 1, so that the inner cylinder 2 is clamped between the pressure cap 34 and the water outlet plug 4, forming a stable clamping and positioning along the axial direction.

[0052] The through-hole on the pressure cap 34 meets the installation requirements of the water inlet pipe 311. After passing through the through-hole, the water inlet pipe 311 extends to the outside of the outer cylinder 1, ensuring the convenience of connecting the water inlet pipe 311 to the external water circuit. Multiple pressure feet 341 are distributed at intervals along the edge of the pressure cap 34, which can form a uniform pressure distribution when they abut against the inner cylinder 2, ensuring the assembly reliability of the inner cylinder 2.

[0053] In one embodiment, the edge of the mounting base 31 is further provided with an annular extension 314, and the edge of the annular extension 314 is provided with a plurality of clearance notches 315.

[0054] The annular extension 314 abuts against the end face of the inner cylinder 2, and the pressure foot 341 is inserted into the corresponding clearance notch 315.

[0055] Specifically, the annular extension 314 of the mounting base 31 can abut against the end of the inner cylinder 2 to position the mounting base 31. The clearance notch 315 provides space clearance between the presser foot 341 and the mounting base 31. The clearance notch 315 provides precise accommodation space for the presser foot 341, allowing the presser foot 341 to pass smoothly through the mounting base 31 and abut against the inner cylinder 2, thus avoiding structural interference between the presser foot 341 and the mounting base 31.

[0056] During assembly, the avoidance notch 315 and the corresponding engagement of the presser foot 341 can also play a role in circumferential positioning, ensuring that the presser foot 341 can accurately abut against the inner cylinder 2.

[0057] In one embodiment, a water flow switch 5 is also included; the water flow switch 5 includes a water wheel 51 and a sensing circuit board 52, wherein a magnet (not shown) is provided on the water wheel 51, and a Hall switch (not shown) is provided on the sensing circuit board 52.

[0058] The water wheel 51 is rotatably disposed in the water inlet pipe 311, and the sensing circuit 52 board is disposed outside the water inlet pipe 311;

[0059] The sensing circuit board 52 is configured to trigger the LED light 32 to operate after the Hall switch detects the rotation of the water wheel 51.

[0060] Specifically, in order to automatically activate the LED light 32 to perform ultraviolet irradiation sterilization on the flowing water according to the water flow, a water flow switch 5 is also configured. The water wheel 51 of the water flow switch 5 is rotatably installed in the water inlet pipe 311. Water is delivered to the water inlet pipe 311 so that the water flow in the water inlet pipe 311 drives the water wheel 51. The water wheel 51 rotates in the water inlet pipe 311 under the action of the water flow. The magnet interacts with the Hall switch to control the LED light 32 to be powered through the sensing circuit board 52.

[0061] During operation, when water flows through the inlet pipe 311, the water flow drives the water wheel 51 to rotate. Because the water wheel 51 has a magnet, as it rotates, the magnet periodically moves closer to or further away from the Hall switch on the sensing circuit board 52 (the sensing circuit board 52 is located outside the inlet pipe 311, corresponding to the position of the water wheel 51). The Hall switch can sense changes in the magnetic field. When the sensing circuit board 52 detects that the water wheel 51 is rotating (i.e., water is flowing through) via the Hall switch, it triggers the LED light to power on and begin ultraviolet sterilization. When the water flow stops, the water wheel 51 stops rotating, the Hall switch no longer detects changes in the magnetic field, and the sensing circuit board 52 controls the LED light to power off and stop working.

[0062] In practical applications, when a user turns on the faucet or water dispenser, water flows into the inlet pipe 311 and drives the water wheel 51 to rotate, automatically activating the LED light for sterilization. When the user turns off the water dispenser, the water flow stops, the water wheel 51 comes to rest, and the LED light automatically turns off. No manual operation is required to control the LED light's on / off state, making it more convenient and intelligent to use.

[0063] The water flow switch 5 can quickly respond to changes in water flow, triggering the LED light the moment the water flow appears. This ensures that every segment of water flowing through it receives ultraviolet radiation in a timely manner, preventing some water from being unsterilized due to delayed LED light activation and ensuring the safety of drinking water.

[0064] The water wheel 51 is directly installed inside the water inlet pipe 311, while the sensing circuit board 52 is installed outside the water inlet pipe 311. This design does not require excessive additional space and is compatible with the overall compact design of the UV sterilizer, without increasing the size of the equipment. Furthermore, the non-contact sensing method using the Hall effect switch and magnet features rapid response and high reliability, ensuring that the LED light 32 is powered on promptly once water flows.

[0065] The working principle of the flow switch 5, in which the magnet and the Hall effect switch work together to detect water flow, is the same as that of a conventional flow switch 5, and will not be limited or elaborated here. In addition, to meet the installation requirements of the water wheel 51 in the inlet pipe 311, two oppositely arranged perforated frames 53 are provided in the inlet pipe 311. The perforated frames 53 are arranged perpendicular to the direction of water flow in the inlet pipe 311, and the axle of the water wheel 51 is connected to the shaft hole provided in the perforated frame 53.

[0066] In one embodiment, a bracket 54 is also provided outside the water inlet pipe 311. The bracket 54 has a ring structure and is sleeved on the outside of the water inlet pipe 311; the sensing circuit board 52 is disposed on the bracket 54.

[0067] Specifically, the ring-shaped bracket 54 is fitted around the outside of the water inlet pipe 311, and the sensing circuit board 52 is also designed as a ring structure and installed and fixed on the bracket 54.

[0068] The tight fit between the ring-shaped bracket 54 and the water inlet pipe 311 ensures the accurate relative position of the sensing circuit board 52 and the water wheel 51, guaranteeing the Hall switch's sensitive detection of changes in the magnetic field of the magnet. This results in higher sensing accuracy of the water flow switch 5, thus more reliably controlling the working state of the LED light. The bracket 54 is fitted onto the outside of the water inlet pipe 311, featuring a compact structure that doesn't occupy excessive space. This design aligns with the overall compact design of the UV sterilizer, contributing to a smaller device size.

[0069] In one embodiment, the inner surface of the pressure foot 341 is further provided with a stepped positioning surface 422, and the sensing circuit board 52 is attached to the stepped positioning surface 422.

[0070] Specifically, the inner surface of the pressure foot 341 forms a stepped positioning surface 422, and the sensing circuit 52 board is attached to the stepped positioning surface 422, which can work together with the fixing effect of the bracket 54 to further enhance the installation stability of the sensing circuit 52 board.

[0071] In one embodiment, a filter plate 42 is also included, wherein a plurality of filter holes 421 are provided on the filter plate 42;

[0072] The inner cylinder 2 is provided with a second positioning part 23, and the filter plate 42 is sandwiched between the second positioning part 23 and the water outlet plug 4.

[0073] Specifically, during use, the water that has been sterilized by the ultraviolet sterilization component 3 will pass through the filter plate 42 and be delivered to the outlet plug 4 and output from the outlet pipe 41. The filter holes 421 on the filter plate 42 can intercept any tiny impurities that may remain in the water (such as sediment particles, colloidal substances, etc.), further purifying the water quality and improving the safety and taste of drinking water.

[0074] In this configuration, the second positioning part 23 is a second stepped surface formed in the inner cylinder 2, and the filter plate 42 abuts against the second stepped surface. Alternatively, the second positioning part 23 is a plurality of second protrusions formed on the inner wall of the inner cylinder 2, with the plurality of second protrusions spaced apart, and the filter plate 42 abuts against the second protrusions.

[0075] Compared with the prior art, the advantages and positive effects of this application are as follows: By setting a first positioning part 21 in the inner cylinder 2 to install the positioning ring 22, and at the same time, the inner wall of the positioning ring 22 is also provided with a water flow notch 221. After the ultraviolet sterilization component 3 is assembled into the inner cylinder 2, the positioning ring 22 will abut against the end of the quartz cover 33 to meet the requirements for fixed installation of the quartz cover 33. The quartz cover 33 does not need to be flipped, which reduces the processing difficulty of the quartz cover 33. In addition, the water flow notch 221 on the inner wall of the positioning ring 22 and the outer wall of the quartz cover 33 form a water flow channel, which allows the water input by the water inlet pipe 311 to be transported to the inside of the inner cylinder 2 for sterilization treatment through the water flow channel. The overall circumferential dimension of the positioning ring 22 is small, which is more conducive to realizing the overall compact design, reducing the processing difficulty, and realizing the compact design to reduce the overall volume of the ultraviolet sterilizer.

[0076] 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A UV sterilizer, characterized in that, include: outer cylinder; The inner cylinder has a first positioning part and an installation positioning ring. The inner circumferential wall of the installation positioning ring has multiple water flow notches, and the installation positioning ring abuts against the first positioning part. An ultraviolet sterilization component includes a mounting base, an LED lamp, and a quartz cover. The mounting base is provided with a water inlet pipe and a mounting seat, which are arranged back to back. The side wall of the mounting base is also provided with a water outlet hole, which is connected to the water inlet pipe. The LED lamp is mounted on the mounting seat, and the quartz cover is mounted on the mounting seat and covers the LED lamp. A water outlet plug, wherein a water outlet pipe is provided on the water outlet plug; The inner cylinder is disposed in the outer cylinder, the mounting base is sealed and inserted into the first port of the inner cylinder, the mounting positioning abuts against the quartz cover, and a water flow channel is formed between the water flow notch and the quartz cover; the water outlet plug is sealed and inserted into the second port of the inner cylinder, the water inlet pipe is connected to the inner cylinder in sequence through the water outlet hole and the water flow channel, and the water outlet pipe is connected to the inner cylinder.

2. The ultraviolet sterilizer according to claim 1, characterized in that, The first positioning part is a first stepped surface formed in the inner cylinder, and the mounting positioning ring abuts against the first stepped surface; Alternatively, the first positioning part may be a plurality of first protrusions formed on the inner wall of the inner cylinder, the plurality of first protrusions being spaced apart, and the mounting positioning ring abutting against the first protrusions.

3. The ultraviolet sterilizer according to claim 1, characterized in that, The mounting positioning ring forms a contact surface with the quartz cover at the point where they contact each other. The contact surface is an inclined surface or an arc surface. The contour of the contact surface matches the point where the quartz cover contacts each other.

4. The ultraviolet sterilizer according to claim 1, characterized in that, The ultraviolet sterilization component also includes a pressure cap, which has a through opening and a plurality of pressure feet extending outward from the edge of the pressure cap; The pressure cap is inserted into the outer cylinder, the pressure foot abuts against the inner cylinder, the water inlet pipe passes through the through-hole and extends to the outside of the outer cylinder, and the inner cylinder is sandwiched between the pressure cap and the water outlet plug.

5. The ultraviolet sterilizer according to claim 4, characterized in that, The edge of the mounting base is also provided with an annular extension, and the edge of the annular extension is provided with multiple clearance notches. The annular extension abuts against the end face of the inner cylinder, and the presser foot is inserted into the corresponding clearance notch.

6. The ultraviolet sterilizer according to claim 4, characterized in that, It also includes a water flow switch; the water flow switch includes a water wheel and a sensing circuit board, the water wheel is provided with a magnet, and the sensing circuit board is provided with a Hall switch; The water wheel is rotatably disposed in the water inlet pipe, and the sensing circuit board is disposed outside the water inlet pipe; The sensing circuit board is configured to trigger the LED light to operate after the Hall switch detects the rotation of the water wheel.

7. The ultraviolet sterilizer according to claim 6, characterized in that, A bracket is also provided on the outside of the water inlet pipe. The bracket has a ring structure and is fitted on the outside of the water inlet pipe. The sensing circuit board is mounted on the bracket.

8. The ultraviolet sterilizer according to claim 7, characterized in that, The inner surface of the presser foot is also provided with a stepped positioning surface, and the sensing circuit board is attached to the stepped positioning surface.

9. The ultraviolet sterilizer according to claim 1, characterized in that, It also includes a filter plate, which has a plurality of filter holes; The inner cylinder is provided with a second positioning part, and the filter plate is sandwiched between the second positioning part and the water outlet plug.

10. The ultraviolet sterilizer according to claim 9, characterized in that, The second positioning part is a second stepped surface formed in the inner cylinder, and the filter plate abuts against the second stepped surface; Alternatively, the second positioning part may be a plurality of second protrusions formed on the inner wall of the inner cylinder, the plurality of second protrusions being spaced apart, and the filter plate abutting against the second protrusions.

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