Overflow type ultraviolet sterilizer

Abstract

The invention relates to the technical field of sewage disinfection, and discloses an overflowing type ultraviolet disinfector which comprises a disinfector shell provided with a water feeding station, a disinfection station and a discharge station, an ultraviolet lamp and a positioning plate with a through hole are respectively arranged in three cavities of a transposition roller in a transposition assembly, and the ultraviolet lamp is arranged in the inner cavity of the transposition assembly. And a quantitative pushing assembly and a mixing assembly are matched, so that efficient treatment of water flow is realized. During working, water flow sequentially passes through all the stations, and in the water inlet stage, the sealing plate and the positioning plate cooperate to prevent cross contamination; in the disinfection stage, the push plate, the rocker arm and the ultraviolet lamp cooperate to improve the disinfection effect; in the discharge stage, the push plate accurately controls the discharge amount, and the new water participates in circular disinfection. The device has the remarkable advantages of efficient disinfection, prevention of cross contamination, accurate discharge, circular disinfection, stable structure, convenience in installation and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage disinfection, and specifically relates to an in-line ultraviolet disinfection device. Background Art

[0002] In the field of water disinfection treatment, with the continuous improvement of water quality requirements, ultraviolet disinfection technology has been widely used due to its environmental protection, high efficiency, and no chemical residues.

[0003] However, there are many deficiencies in existing in-line ultraviolet disinfection devices. On the one hand, cross-contamination is likely to occur in the water flow at different stages, seriously affecting the disinfected water quality and possibly causing the disinfected water to be contaminated again. On the other hand, the discharge structure design is unreasonable, making it difficult to achieve accurate quantitative discharge, which not only causes waste of water resources but also may reduce the overall operation efficiency of the device due to the misdischarge of newly entered undisinfected water.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] An in-line ultraviolet disinfection device includes a disinfection device housing with multiple workstations.

[0007] The multiple workstations include a water inlet workstation, a disinfection workstation, and a discharge workstation. An inlet pipe connected to the water inlet workstation, an outlet pipe connected to the discharge workstation, and a transposition component for the replacement workstation are installed on the disinfection device housing;

[0008] The transposition component includes a transposition roller with three cavities, and an ultraviolet lamp and a positioning plate with a through hole are installed in each cavity;

[0009] A quantitative pushing component is installed on the transposition roller. The quantitative pushing component includes a push plate sliding in the cavity, and a sealing plate that rotates unidirectionally is rotatably installed on the push plate. The push plate moves along the surface track of a guide block installed on the side wall of the disinfection device housing and having a guide protrusion;

[0010] The transposition roller is also installed with a mixing component. The mixing component includes a rocker arm swingably installed on the transposition roller, and the rocker arm swings along a wavy groove formed on the surface of the guide protrusion to mix the liquid. The guide protrusion corresponds to the disinfection workstation.

[0011] As a preferred embodiment of the present invention, a base is fixedly installed at the bottom of the disinfection device housing. A base plate is installed at the bottom of the base. The base plate is in the shape of a convex platform. Four mounting holes for positioning installation are installed at the corners of the base plate. A reinforcing rib is installed at the connection between the base and the base plate. The reinforcing rib is triangular.

[0012] As a preferred embodiment of the present invention, connecting flanges are installed at the tops of the water inlet pipe and the water outlet pipe.

[0013] As a preferred embodiment of the present invention, partition plates are installed on the commutation roller. The partition plates are used to divide three different cavities. The commutation roller is rotatably installed in the sterilizer housing, and the inner wall of the commutation roller is in close fit with the sterilizer housing. The ultraviolet lamp is installed in the partition plate, and the ultraviolet lamp is used to communicate two adjacent chambers.

[0014] As a preferred embodiment of the present invention, a mounting plate is installed at one end of the sterilizer housing through bolts. The mounting plate is in close fit with the commutation roller and is rotatably connected therebetween. A driving motor is installed at the other end of the sterilizer housing. A driving shaft is installed on the output shaft of the driving motor. The driving shaft movably penetrates the side wall of the sterilizer housing, and the end of the driving shaft is connected to the rotation center of the commutation roller.

[0015] As a preferred embodiment of the present invention, a water inlet is opened at one end inside the push plate. A countersunk head groove is opened at the other end of the push plate. The size of the countersunk head groove is larger than that of the water inlet. A rotating shaft is installed on the countersunk head groove. The rotating shaft is connected to the sealing plate, and the sealing plate is adapted to the countersunk head groove. The sealing plate covers the water inlet. A first torsion spring is sleeved on the rotating shaft. One end of the first torsion spring is clamped on the side wall of the countersunk head groove, and the other end of the first torsion spring is clamped on the side wall of the sealing plate.

[0016] As a preferred embodiment of the present invention, a connecting rod is installed on the side wall of the push plate. The connecting rod movably penetrates the positioning plate. A connecting frame is installed at the end of the connecting rod. A ejector rod is installed at the end of the connecting frame. The ejector rod movably penetrates the commutation roller, and the end of the ejector rod is slidably connected to the guide block.

[0017] As a preferred embodiment of the present invention, a pressing plate is installed on the ejector rod. A return spring is sleeved on the side wall of the ejector rod. One end of the return spring is clamped on the side wall of the pressing plate, and the other end of the return spring is clamped on the end face of the commutation roller. A ball is installed at the end of the ejector rod, and the ball is in mutual fit with the end face of the guide block.

[0018] As a preferred embodiment of the present invention, one end of the guide block is provided with a plane, which is adapted to the circular angular positions corresponding to the water inlet station and the discharge station. A jacking inclined plane is provided at the connection between the plane and one end of the guide protrusion. The other end of the guide protrusion is provided with a vertical section, and the vertical section is located in the central angle corresponding to the discharge station.

[0019] As a preferred embodiment of the present invention, several pairs of top balls are mounted on the surface of the ejector rod, and the ejector rod movably penetrates through a strip-shaped groove formed in the side wall of the rocker arm. The diameter of the strip-shaped groove is smaller than the diameter of the top ball. A synchronous shaft is rotatably mounted at the bottom of the rocker arm, and a positioning seat is mounted on the side wall of the synchronous shaft. The positioning seat is mounted on the transposition roller. A second torsion spring is mounted on the synchronous shaft, with one end of the second torsion spring clamped on the positioning seat and the other end clamped on the rocker arm. A pair of stirring plates are mounted on the side wall of the rocker arm.

[0020] The present invention has the following beneficial effects compared with the prior art:

[0021] Through a delicate structural design, the present invention effectively prevents cross-contamination and realizes precise quantitative discharge and a circulating disinfection mechanism. At the water inlet station, the sealing plate cover and the positioning plate effectively separate the cavity, ensuring that the newly flowing-in water is strictly restricted within a specific space and avoiding contact with the disinfected water flow on the other side, thus guaranteeing the independence and purity of the water quality from the source and laying a solid foundation for the subsequent disinfection work. When the water flow reaches the discharge station, the push plate resets synchronously, and the water can be pushed outwards from the positioning plate along the through hole, precisely controlling the amount of the discharged disinfected water, eliminating the problems of water resource waste caused by excessive discharge and sewage accumulation in the equipment caused by insufficient discharge. Each time the transposition roller rotates one circle, the sewage can stably and moderately advance forward in the right chamber of the positioning plate, and finally achieve precise discharge through the water outlet pipe. Moreover, the newly squeezed-in water will not be accidentally discharged during the discharge process but remains in the equipment to enter the next round of disinfection. The residual disinfected water is mixed with the new water and undergoes disinfection again, forming an efficient circulating disinfection mode. This entire set of mechanisms not only ensures the continuity and efficiency of the disinfection work, makes full use of the equipment space and disinfection time, continuously improves the water quality, but also significantly enhances the stability and reliability of the equipment operation, providing users with a stable and high-quality disinfected water supply service.

[0022] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0023] In the drawings:

[0024] Figure 1 is a three-dimensional structural schematic diagram of a flow-through ultraviolet disinfection device;

[0025] Figure 2 is an overall structural schematic diagram of a flow-through ultraviolet disinfection device;

[0026] Figure 3 is a cross-section at the disinfector housing of a flow-through ultraviolet disinfection device Figure 1 ;

[0027] Figure 4 is a flow-through ultraviolet disinfection device Figure 3 magnified view at A in;

[0028] Figure 5 Cross-sectional view at the disinfector housing of a flow-through ultraviolet disinfector Figure 2 ;

[0029] Figure 6 Of a flow-through ultraviolet disinfector Figure 5 Enlarged view at position B in

[0030] Figure 7 Partial cross-sectional view of a flow-through ultraviolet disinfector

[0031] Figure 8 Cross-sectional view at the positioning plate of a flow-through ultraviolet disinfector

[0032] Figure 9 Of a flow-through ultraviolet disinfector Figure 8 Enlarged view at position C in

[0033] Figure 10 Cross-sectional view at the sealing plate of a flow-through ultraviolet disinfector

[0034] Figure 11 Partial structural schematic diagram of a flow-through ultraviolet disinfector

[0035] Figure 12 3D diagram of the guide block of a flow-through ultraviolet disinfector

[0036] In the figure:

[0037] 1. Disinfector housing; 11. Water inlet pipe; 12. Water outlet pipe; 13. Connecting flange; 14. Base; 141. Reinforcing rib; 142. Base plate; 143. Mounting hole; 15. Transposition roller; 151. Partition; 152. Ultraviolet lamp; 153. Positioning plate; 154. Through hole; 155. Mounting plate; 16. Driving motor; 161. Driving shaft; 17. Multi-station; 171. Water inlet station; 172. Disinfection station; 173. Discharge station;

[0038] 2. Pusher plate; 21. Water inlet; 211. Countersunk head groove; 212. Sealing plate; 213. Rotating shaft; 214. First torsion spring; 22. Thrust rod; 221. Connecting frame; 222. Connecting rod; 223. Ball; 224. Pressing plate; 225. Return spring; 23. Guide block; 231. Guide protrusion; 232. Lifting inclined plane; 233. Wavy groove; 234. Vertical section; 235. Plane;

[0039] 3. Rocker arm; 31. Stirring plate; 32. Positioning seat; 321. Synchronous shaft; 322. Second torsion spring; 33. Strip-shaped groove; 331. Top ball. Detailed implementation method

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0041] Embodiment 1:

[0042] As Figures 1 to 12 shown, an in-flow type ultraviolet disinfection device includes a disinfection device housing 1 containing a plurality of workstations 17. The plurality of workstations 17 include a water inlet workstation 171, a disinfection workstation 172, and a discharge workstation 173. An inlet pipe 11 connected to the water inlet workstation, an outlet pipe 12 connected to the discharge workstation, and a transposition assembly for the replacement workstation are installed on the disinfection device housing 1; this multi-workstation design makes the sewage treatment process clearer and more orderly, and each link can be accurately connected, greatly improving the disinfection efficiency.

[0043] The transposition assembly includes a transposition roller 15 provided with three cavities. An ultraviolet lamp 152 and a positioning plate 153 provided with through holes 154 are installed in each cavity; among them, the ultraviolet lamp 152 can efficiently kill microorganisms in sewage, and the positioning plate 153 can effectively separate the cavities to prevent the water flow in different treatment stages from interfering with each other.

[0044] A quantitative pushing assembly is installed on the transposition roller 15. The quantitative pushing assembly includes a push plate 2 sliding in the cavity, and a sealing plate 212 that rotates unidirectionally is rotatably installed on the push plate 2. The push plate 2 moves along the surface track of a guide block 23 provided on the side wall of the disinfection device housing 1 and having a guide protrusion 231; this design can accurately control the flow of water between different workstations to ensure that the treatment effect of each workstation reaches the best.

[0045] A mixing assembly is also installed on the transposition roller 15. The mixing assembly includes a rocker arm 3 swingably installed on the transposition roller 15, and the rocker arm 3 swings along a wave groove 233 provided on the surface of the guide protrusion 231 to mix the liquid. The guide protrusion 231 corresponds to the disinfection workstation 172. Under the disinfection workstation, the swing of the rocker arm 3 can make the water flow fully mixed, allowing microorganisms to be more comprehensively exposed to ultraviolet irradiation, significantly improving the disinfection effect.

[0046] As Figure 1 , Figure 2 and Figure 3As shown in the figure, in the specific implementation, a base 14 is fixedly installed at the bottom of the sterilizer housing 1, and a substrate 142 is installed at the bottom of the base 14. The substrate 142 is in the shape of a convex platform. This unique convex platform shape design can effectively enhance the stability of the device when placed and reduce shaking. Four mounting holes 143 for positioning and installation are installed at the corners of the substrate 142, facilitating the precise installation of the device at a specified position. A reinforcing rib 141 is installed at the connection between the base 14 and the substrate 142, and the reinforcing rib 141 is triangular. The triangular reinforcing rib structure is stable and can greatly improve the connection strength between the base and the substrate, extending the service life of the device.

[0047] As Figure 1 , Figure 2 and Figure 3 shown, further, connection flanges 13 are installed at the tops of the water inlet pipe 11 and the water outlet pipe 12. The setting of the connection flanges 13 makes the connection between the water inlet pipe and the water outlet pipe and the external pipeline more convenient and firm, facilitating later maintenance and pipeline replacement.

[0048] Embodiment 2:

[0049] Based on Embodiment 1, the difference from this embodiment is that as Figure 3 and Figure 5 shown, a partition 151 is installed on the commutation roller 15. The partition 151 is used to divide three different cavities. The commutation roller 15 is rotatably installed in the sterilizer housing 1, and the inner wall of the commutation roller 15 is closely attached to the sterilizer housing 1. The ultraviolet lamp 152 is installed in the partition 151, and the ultraviolet lamp 152 is used to connect two adjacent chambers. Through this installation method, the ultraviolet lamp can disinfect the water flow in adjacent chambers simultaneously, improving the disinfection efficiency.

[0050] As Figure 2 , Figure 3 and Figure 5 shown, in the specific implementation, a mounting plate 155 is installed at one end of the sterilizer housing 1 through bolts. The mounting plate 155 is closely attached to the commutation roller 15, and the two are rotatably connected. A driving motor 16 is installed at the other end of the sterilizer housing 1. A driving shaft 161 is installed on the output shaft of the driving motor 16. The driving shaft 161 movably penetrates the side wall of the sterilizer housing 1, and the end of the driving shaft 161 is connected to the rotation center of the commutation roller 15. The driving motor 16 precisely drives the commutation roller 15 to rotate through the driving shaft 161, providing stable power for the operation of the entire device.

[0051] As Figure 8 , Figure 9 and Figure 10As shown in the figure, further, a water inlet 21 is provided at one end inside the push plate 2, and a countersunk head groove 211 is provided at the other end of the push plate 2. The size of the countersunk head groove 211 is larger than that of the water inlet 21, and a rotating shaft 213 is installed on the countersunk head groove 211. The rotating shaft 213 is connected to the sealing plate 212, and the sealing plate 212 is adapted to the countersunk head groove 211. The sealing plate 212 covers the water inlet 21. A first torsion spring 214 is sleeved on the rotating shaft 213. One end of the first torsion spring 214 is clamped on the side wall of the countersunk head groove 211, and the other end of the first torsion spring 214 is clamped on the side wall of the sealing plate 212. This structural design enables the sealing plate 212 to effectively seal the water inlet 21 under normal conditions, prevent the backflow of water, and ensure the correct treatment sequence of sewage at each working station.

[0052] As Figure 5 and Figure 6 shown in the figure, further, a connecting rod 222 is installed on the side wall of the push plate 2. The connecting rod 222 movably penetrates through the positioning plate 153. A connecting frame 221 is installed at the end of the connecting rod 222, and a push rod 22 is installed at the end of the connecting frame 221. The push rod 22 movably penetrates through the transposition roller 15. The end of the push rod 22 is slidably connected to the guide block 23. A pressing plate 224 is installed on the push rod 22. A return spring 225 is sleeved on the side wall of the push rod 22. One end of the return spring 225 is clamped on the side wall of the pressing plate 224, and the other end of the return spring 225 is clamped on the end face of the transposition roller 15. A ball 223 is installed at the end of the push rod 22, and the ball 223 is in mutual contact with the end face of the guide block 23. Such a structural design enables the push plate 2 to accurately move along the trajectory of the guide block 23. At the same time, the return spring 225 can facilitate the rapid reset of the push plate 2 after completing one action, preparing for the next action.

[0053] Embodiment 3:

[0054] Based on Embodiment 2, the difference from this embodiment is that as Figure 6 and Figure 11 Figure 12 shown in the figure, a plane 235 is provided at one end of the guide block 23. The plane 235 is adapted to the circular angular positions corresponding to the water supply station 171 and the discharge station 173. A jacking inclined plane 232 is provided at the connection between the plane 235 and one end of the guide protrusion 231. A vertical section 234 is provided at the other end of the guide protrusion 231, and the vertical section 234 is located in the central angle corresponding to the discharge station 173. This unique design of the guide block 23 can accurately guide the moving trajectory of the push rod 22 at different working stations, ensuring the accuracy of the equipment operation.

[0055] As Figure 4As shown, in the specific implementation, several pairs of top balls 331 are installed on the surface of the ejector rod 22. The ejector rod 22 movably penetrates through the strip-shaped groove 33 opened on the side wall of the rocker arm 3. The diameter of the strip-shaped groove 33 is smaller than the diameter of the top ball 331. A synchronous shaft 321 is rotatably installed at the bottom of the rocker arm 3. A positioning seat 32 is installed on the side wall of the synchronous shaft 321. The positioning seat 32 is installed on the transposition roller 15. A second torsion spring 322 is installed on the synchronous shaft 321. One end of the second torsion spring 322 is clamped on the positioning seat 32, and the other end is clamped on the rocker arm 3. A pair of stirring plates 31 are installed on the side wall of the rocker arm 3. When the ejector rod 22 moves, through the cooperation of the top ball 331 and the strip-shaped groove 33, the rocker arm 3 can be accurately driven to swing, and the stirring plates 31 stir the water flow, making the water flow mix more evenly, thereby improving the disinfection effect.

[0056] The implementation principle of an in-flow type ultraviolet disinfection device of the present invention is as follows:

[0057] The sewage first enters from the water inlet pipe 11 and thus can fall into the cavity located at the upper water station 171. At this station, due to the cooperative action of the sealing plate 212 and the positioning plate 153, the newly flowing-in water is restricted within a specific space (based on Figure 3 which, the water flow is restricted in the left cavity). The sealing plate 212 is installed inside the push plate 2. One end of it is connected to the push plate 2 through a rotating shaft 213, and a first torsion spring 214 is sleeved on the rotating shaft 213. The first torsion spring 214 makes the sealing plate 212 cover the water inlet 21 of the push plate 2 under normal conditions. The positioning plate 153 is provided with a through hole 154 and is installed in the cavity of the transposition roller 15 to effectively separate the cavity. In this state, the newly flowing-in water will not come into contact with the water flow that has already been disinfected on the other side, ensuring the independence and purity of the water quality, preventing cross-contamination, and laying a good foundation for the subsequent disinfection work.

[0058] As the transposition roller 15 rotates, the space where the sewage is located is transposed to the disinfection station 172. The rotation of the transposition roller 15 is driven by the driving motor 16 through the driving shaft 161. During the transposition process, the push plate 2, the connecting rod 222, the connecting frame 221, and the ejector rod 22 slide synchronously. At this time, the ball 223 at the end of the ejector rod 22 slides along the plane 235 of the guide block 23 and finally can slide along the lifting inclined plane 232 at the end of the plane 235 to the surface of the guide protrusion 231. During the above process, the ejector rod 22 as a whole moves to the left, thereby driving the pressure plate 224 to slide synchronously. At this time, the pressure plate 224 compresses the return spring 225, which facilitates the subsequent reset operation through the return spring 225.

[0059] The movement of the push plate 2 to the left causes the entire push plate 2 to move to the left. However, at this time, the left sealing chamber is sealed. As a result, when the push plate 2 moves to the left, it compresses the water body. At this time, the water body can simultaneously push open the sealing plate, and then the sealing plate 212 flips. At this time, the sewage will flow into the chamber between the push plate 2 and the positioning plate 153. Therefore, the sewage and the disinfected water will not exchange at this time, maintaining the orderliness and stability of the disinfection process. However, during the above entire process, the ultraviolet lamp 152 is in a working state. The sewage can be treated by the ultraviolet lamp 152. The treatment of sewage by the ultraviolet lamp 152 is prior art, and its working principle will not be elaborated here.

[0060] At the same time, when the push plate 2 moves to the left, it will drive the ejector rod 22 to move. The ejector ball 331 on the ejector rod 22 moves to the left until the ejector ball 331 slides to the side wall of the rocker arm 3. Since the wave groove 233 formed on the surface of the guiding protrusion 231 corresponds to the disinfection station 172, when the entire transposition roller 15 rotates on the disinfection station 172, the ejector rod 22 slides on the wave groove 233 on the surface of the guiding protrusion 231 at this time, thereby driving the ejector rod 22 to reciprocate slightly along the wave groove 233. Then, the ejector ball 331 on the side wall of the ejector rod 22 can squeeze the rocker arm 3, and the rocker arm 3 starts to swing synchronously at this time. After swinging, it is directly reset by the second torsion spring 322. Finally, the rocker arm 3 can swing reciprocally.

[0061] During the swinging process of the rocker arm 3, the stirring plate 31 installed on its side wall can fully stir the water flow in the disinfection station 172, making the water flow mix more evenly. This mixing action enables the microorganisms in the water flow to be exposed to the irradiation range of the ultraviolet lamp 152 comprehensively and without dead angles, greatly improving the effect of ultraviolet disinfection. Compared with the traditional disinfection method, it can reduce the residue of microorganisms and ensure the disinfection quality.

[0062] When the water flow continuously rotates with the transposition roller 15 to the discharge station 173, the push plate 2 and the ejector rod 22 move synchronously to the vertical section 234 of the side wall of the guiding projection 231. With the further rotation of the transposition roller 15, the return spring 225 comes into play, driving the ejector rod 22 and the push plate 2 to reset. During the reset process of the push plate 2, it will push the water outwards along the through hole 154 from the positioning plate 153, enabling this part of the water to enter the disinfected chamber on the right side. Through the extrusion of the push plate 2, a part of the disinfected water in this chamber is discharged. At this time, the initially newly flowing sewage moves to the rightmost position of the chamber on the right side of the positioning plate. This design enables precise control of the amount of disinfected water discharged each time the push plate 2 resets and drains water, avoiding problems such as water resource waste caused by excessive discharge or sewage accumulation in the equipment due to insufficient discharge, which affects the operation efficiency. Moreover, the newly squeezed-in water will not be accidentally discharged during the discharge process but remains in the equipment and enters the next round of disinfection process according to the established procedure, ensuring the continuity and high efficiency of the disinfection work. After multiple such operations, during each rotation of the transposition roller 15, the sewage will advance a certain distance forward in the chamber on the right side of the positioning plate and finally be discharged through the water outlet pipe. Each rotation of the transposition roller 15 can ensure that a stable and appropriate amount of sewage advances forward, ensuring the precision and regularity of the discharge process. This design is extremely ingenious, precisely achieving quantitative discharge, providing strong guarantee for the stable operation of the equipment and subsequent treatment links, and significantly improving the practicality and reliability of the equipment.

Claims

1. A flow-through ultraviolet sterilizer, comprising a sterilizer housing (1) having a plurality of stations (17), characterized in that: The plurality of workstations (17) include a water supply workstation (171), a disinfection workstation (172) and a discharge workstation (173); a water inlet pipe (11) connected to the water supply workstation, a water outlet pipe (12) connected to the discharge workstation and a position change component for changing the workstation are installed on the disinfector housing (1); The transposition assembly comprises a transposition roller (15) with three cavities, each cavity being provided with an ultraviolet lamp (152) and a positioning plate (153) with a through hole (154); The transposition roller (15) is provided with a quantitative pushing assembly, the quantitative pushing assembly comprising a push plate (2) sliding in the cavity, and a unidirectionally rotating sealing plate (212) rotatably mounted on the push plate (2), the push plate (2) moving along a surface track of a guide block (23) provided with a guide protrusion (231) mounted on the side wall of the sterilizer housing (1); The transposition roller (15) is also equipped with a mixing assembly, which includes a rocker arm (3) swingably mounted on the transposition roller (15), and the rocker arm (3) swings along a wave groove (233) provided on the surface of the guide protrusion (231) to mix the liquid, and the guide protrusion (231) corresponds to the disinfection station (172).

2. The over-flow ultraviolet sterilizer according to claim 1, characterized in that: A base (14) is fixedly mounted on the bottom of the sterilizer housing (1), a substrate (142) is mounted on the bottom of the base (14), the substrate (142) is in the shape of a boss, four mounting holes (143) for positioning and mounting are mounted at the corners of the substrate (142), and a reinforcing rib (141) is mounted at the connection between the base (14) and the substrate (142), the reinforcing rib (141) being in the shape of a triangle.

3. The over-flow ultraviolet sterilizer according to claim 1, characterized in that: Connecting flanges (13) are installed on the tops of the water inlet pipe (11) and the water outlet pipe (12).

4. The over-flow ultraviolet sterilizer according to claim 1, characterized in that: A partition (151) is installed on the transposition roller (15), and the partition (151) is used to divide three different cavities. The transposition roller (15) is rotatably installed in the sterilizer housing (1), and the inner wall of the transposition roller (15) is tightly fitted with the sterilizer housing (1). The ultraviolet lamp (152) is installed in the partition (151), and the ultraviolet lamp (152) is used to connect two connected chambers.

5. The over-flow ultraviolet sterilizer according to claim 1, characterized in that: A mounting plate (155) is mounted on one end of the sterilizer housing (1) by means of bolts. The mounting plate (155) is tightly fitted with the transposition roller (15), and the two are rotatably connected. A driving motor (16) is mounted on the other end of the sterilizer housing (1). A driving shaft (161) is mounted on the output shaft of the driving motor (16). The driving shaft (161) movably passes through the side wall of the sterilizer housing (1), and the end of the driving shaft (161) is connected to the rotation center of the transposition roller (15).

6. The overflow type ultraviolet sterilizer according to claim 1, characterized in that: A water inlet (21) is provided at one end of the push plate (2), and a countersunk groove (211) is provided at the other end of the push plate (2). The size of the countersunk groove (211) is larger than the size of the water inlet (21), and a rotating shaft (213) is installed on the countersunk groove (211). The rotating shaft (213) and the sealing plate (212) are connected to each other, and the sealing plate (212) is adapted to the countersunk groove (211). The sealing plate (212) covers the water inlet (21), and a first torsion spring (214) is sleeved on the rotating shaft (213). One end of the first torsion spring (214) is clamped on the side wall of the countersunk groove (211), and the other end of the first torsion spring (214) is clamped on the side wall of the sealing plate (212).

7. The over-flow ultraviolet sterilizer according to claim 1, characterized in that: A connecting rod (222) is installed on the side wall of the push plate (2), and the connecting rod (222) movably passes through the positioning plate (153). A connecting frame (221) is installed at the end of the connecting rod (222), and a push rod (22) is installed at the end of the connecting frame (221). The push rod (22) movably passes through the transposition roller (15), and the end of the push rod (22) is slidably connected to the guide block (23).

8. The overflow type ultraviolet sterilizer according to claim 7, characterized in that: A pressure plate (224) is installed on the push rod (22), and a return spring (225) is sleeved on the side wall of the push rod (22), one end of the return spring (225) is clamped on the side wall of the pressure plate (224), and the other end of the return spring (225) is clamped on the end surface of the shifting roller (15), and a ball (223) is installed at the end of the push rod (22), and the ball (223) and the end surface of the guide block (23) are in contact with each other.

9. The over-flow ultraviolet sterilizer according to claim 1, characterized in that: A plane (235) is provided at one end of the guide block (23), and the plane (235) is adapted to the circular angle positions corresponding to the water supply station (171) and the discharge station (173). A lifting slope (232) is provided at the connection between the plane (235) and one end of the guide protrusion (231), and a vertical section (234) is provided at the other end of the guide protrusion (231), and the vertical section (234) is located in the center angle corresponding to the discharge station (173).

10. The over-flow ultraviolet sterilizer according to claim 7, characterized in that: A plurality of pairs of top balls (331) are installed on the surface of the top rod (22), and the top rod (22) movably penetrates a strip groove (33) provided on the side wall of the rocker arm (3), and the diameter of the strip groove (33) is smaller than the diameter of the top ball (331). A synchronous shaft (321) is rotatably installed at the bottom of the rocker arm (3), and a positioning seat (32) is installed on the side wall of the synchronous shaft (321). The positioning seat (32) is installed on the transposition roller (15). A second torsion spring (322) is installed on the synchronous shaft (321), and one end of the second torsion spring (322) is clamped on the positioning seat (32) and the other end is clamped on the rocker arm (3). A pair of stirring plates (31) are installed on the side wall of the rocker arm (3).

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