[go: up one dir, main page]

CN222490644U - Sewage treatment agent sprinkler - Google Patents

Sewage treatment agent sprinkler Download PDF

Info

Publication number
CN222490644U
CN222490644U CN202421166749.9U CN202421166749U CN222490644U CN 222490644 U CN222490644 U CN 222490644U CN 202421166749 U CN202421166749 U CN 202421166749U CN 222490644 U CN222490644 U CN 222490644U
Authority
CN
China
Prior art keywords
transmission shaft
sewage treatment
treatment agent
fixedly connected
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202421166749.9U
Other languages
Chinese (zh)
Inventor
曲陆鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baisheng Water Treatment Jilin Province Co ltd
Original Assignee
Baisheng Water Treatment Jilin Province Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baisheng Water Treatment Jilin Province Co ltd filed Critical Baisheng Water Treatment Jilin Province Co ltd
Priority to CN202421166749.9U priority Critical patent/CN222490644U/en
Application granted granted Critical
Publication of CN222490644U publication Critical patent/CN222490644U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Cleaning In General (AREA)

Abstract

本实用新型公开了一种污水处理剂喷洒装置,包括固定台、输送结构、驱动结构、传动轴和清洁结构,固定台内部穿设有除污灌,输送结构设于固定台的顶部远离进液管二的一侧,驱动结构设于除污灌的顶部,传动轴穿设于除污灌的内部,传动轴的外壁顶部套接传动套,传动轴的外壁底部套接固定套,清洁结构的数量为两组,两组清洁结构分别设于传动轴的两侧。本实用新型通过输送结构、中空的传动轴、中空的搅拌杆和喷头的配合,可保证污水处理剂充分的分布在除污灌的各个深度,伸缩杆和弹簧的配合,使得清洁刷始终抵接除污灌的内壁,对附着在除污灌内壁的颗粒性杂质进行清洁,通过驱动结构使得搅拌杆和固定架实现不同方向的旋转,从而增加混合搅拌效率。

The utility model discloses a sewage treatment agent spraying device, including a fixed platform, a conveying structure, a driving structure, a transmission shaft and a cleaning structure. A decontamination pot is inserted inside the fixed platform, the conveying structure is arranged on the top of the fixed platform away from the second side of the liquid inlet pipe, the driving structure is arranged on the top of the decontamination pot, the transmission shaft is inserted inside the decontamination pot, the top of the outer wall of the transmission shaft is sleeved with a transmission sleeve, the bottom of the outer wall of the transmission shaft is sleeved with a fixed sleeve, and the number of cleaning structures is two groups, and the two groups of cleaning structures are respectively arranged on both sides of the transmission shaft. The utility model can ensure that the sewage treatment agent is fully distributed in various depths of the decontamination pot through the cooperation of the conveying structure, the hollow transmission shaft, the hollow stirring rod and the nozzle, and the cooperation of the telescopic rod and the spring makes the cleaning brush always abut the inner wall of the decontamination pot to clean the granular impurities attached to the inner wall of the decontamination pot, and the stirring rod and the fixed frame are rotated in different directions through the driving structure, thereby increasing the mixing and stirring efficiency.

Description

Sewage treatment agent sprinkler
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment agent spraying device.
Background
The sewage treatment is a process for purifying sewage to meet the water quality requirement of being discharged into a certain water body or reused, is widely applied to various fields of buildings, agriculture, traffic, energy sources, petrifaction, environmental protection, urban landscapes, medical treatment, catering and the like, and also increasingly enters the daily life of common people, and a spraying device is needed to spray matched liquid medicine into the sewage when the sewage in a sewage pool is treated, and the harmful substances in the sewage are degraded or decomposed, so that the effect of purifying the sewage is achieved.
The utility model discloses a sewage treatment agent spraying device for sewage treatment, which is characterized in that a guide pipe is communicated with the bottom of a water pump, the guide pipe extends to the inside of a sewage removal tank, a spraying head is fixedly connected to the bottom of the guide pipe, a water inlet pipe is communicated with the left side of the sewage removal tank, a water inlet cover is sleeved at the top of the water inlet pipe, a controller is fixedly connected to the right side of the sewage removal tank, a rotating motor is fixedly connected to the lower surface of the sewage removal tank, a rotating rod is fixedly connected to the top of the rotating motor, a stirring rod is fixedly connected to the surface of the rotating rod, the rotating motor is connected with the bottom of the sewage removal tank, the stirring rod is arranged on the surface of the rotating rod, and when the spraying head inside the sewage removal tank sprays a treating agent on sewage, the rotating motor is started, so that the treating agent and the sewage are better in fusion contact, and the effect of the treating agent is fully exerted. In addition, the existing sewage treatment agent spraying device has the following defects in use:
(1) When the existing sewage treatment agent spraying device is used for spraying, the sewage treatment agent is only distributed on the surface of sewage and cannot fully contact and react with the sewage at the bottom layer, long-time mixing reaction is needed, the sewage treatment time is increased, and the treatment efficiency is reduced;
(2) The granular impurities in the sewage of the existing sewage treatment agent spraying device are easy to adhere to the inner wall of the sewage removal tank, so that the phenomenon of incomplete sewage treatment is caused.
Disclosure of utility model
The utility model aims to overcome the technical defects and provide a sewage treatment agent spraying device.
In order to solve the above problems, the technical scheme of the present utility model includes:
The sewage treatment device comprises a fixing table, wherein a sewage treatment tank is arranged in the fixing table, four corners of the bottom of the fixing table are fixedly connected with supporting columns respectively, a liquid inlet pipe II is inserted into one side of the top of the sewage treatment tank, a discharging funnel is arranged at the bottom side of the interior of the sewage treatment tank, and a liquid outlet pipe is inserted into the center of the bottom end of the sewage treatment tank;
The conveying structure is arranged at one side of the top of the fixed table, which is far away from the liquid inlet pipe II;
The driving structure is arranged at the top of the decontamination tank and comprises a driving shell, a first motor, a first gear, a second motor and a second gear, wherein one side of the interior of the driving shell is provided with the first motor, the other side of the interior of the driving shell is provided with the second motor, one end of the first motor is fixedly connected with the decontamination tank, the other end of the first motor is fixedly connected with the first gear, one end of the second motor is fixedly connected with the decontamination tank, and the other end of the second motor is fixedly connected with the second gear;
The transmission shaft penetrates through the interior of the decontamination tank, one end of the transmission shaft penetrates through the interior wall of the decontamination tank and the driving shell to be movably connected, the other end of the transmission shaft stretches into the liquid outlet pipe, the top of the outer wall of the transmission shaft is sleeved with the transmission sleeve, and the bottom of the outer wall of the transmission shaft is sleeved with the fixing sleeve;
The number of the cleaning structures is two, and the two cleaning structures are respectively arranged on two sides of the transmission shaft.
Further, the outer wall of the transmission shaft extending into the driving shell is sleeved with a gear IV, and the top end of the transmission sleeve penetrates through the decontamination tank to extend into the driving shell and is fixedly connected with the gear III.
Further, the conveying structure comprises a treating agent box, a conveying pump is arranged on one side of the top of the treating agent box, a first liquid inlet pipe is inserted into the other side of the top of the treating agent box, a connecting pipe is inserted into a water inlet of the conveying pump, and a discharge pipe is inserted into a water outlet of the conveying pump.
Further, every group clean structure includes mount, telescopic link, fixed plate and cleaning brush, the one end fixed connection transmission cover of mount, the fixed cover of other end fixed connection, one side that the transmission cover was kept away from to the mount is equipped with a plurality of equidistance telescopic links, a plurality of the one end of telescopic link is fixed connection mount respectively, and other end fixed connection fixed plate, one side that the telescopic link was kept away from to the fixed plate is equipped with a plurality of equidistance cleaning brush.
Further, the outer wall both sides of transmission shaft are a plurality of equidistance puddler of fixed connection respectively, and a plurality of the front side and the rear side of puddler are equipped with the shower nozzle respectively, the transmission shaft with a plurality of the puddler is inside cavity, the transmission shaft with a plurality of the inside of puddler communicates with each other.
Further, the third gear is in meshed connection with the second gear, and the fourth gear is in meshed connection with the first gear.
Further, the bottom end of the connecting pipe is inserted into the treating agent box, and the top end of the discharge pipe penetrates through the driving shell and is inserted into the transmission shaft.
Further, the outer walls of the telescopic rods are respectively connected with springs in a winding mode, and one sides, far away from the fixed plates, of the cleaning brushes are respectively connected with the inner walls of the dirt removing tanks in an abutting mode.
Compared with the prior art, the utility model has the advantages that:
1. the utility model provides a sewage treatment agent spraying device, which can ensure that sewage treatment agents are fully distributed at all depths of a sewage removal tank through the cooperation of a conveying structure, a hollow transmission shaft, a hollow stirring rod and a spray head, thereby facilitating the subsequent mixing and stirring reaction, accelerating the mixing reaction with sewage and improving the efficiency of sewage treatment;
2. The utility model provides a sewage treatment agent spraying device, which is characterized in that a cleaning brush is always abutted against the inner wall of a sewage removal tank through the cooperation of a telescopic rod and a spring, so that the granular impurities attached to the inner wall of the sewage removal tank are cleaned, and the quality of sewage treatment is ensured;
3. The utility model provides a sewage treatment agent spraying device, which enables a stirring rod and a fixing frame to rotate in different directions through a driving structure, so that the mixing and stirring efficiency is improved.
Drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a cross-sectional view of the internal structure of the decontaminating tank of fig. 1.
Fig. 3 is an enlarged view at a in fig. 1.
Fig. 4 is an enlarged view at B in fig. 2.
Fig. 5 is an enlarged view at C in fig. 2.
The device is shown as a figure, namely 1, a fixed table, 2, a support column, 3, a conveying structure, 301, a treating agent box, 302, a conveying pump, 303, a first liquid inlet pipe, 304, a connecting pipe, 305, a discharge pipe, 4, a decontamination tank, 5, a second liquid inlet pipe, 6, a liquid outlet pipe, 7, a transmission shaft, 8, a fixed sleeve, 9, a cleaning structure, 901, a fixed frame, 902, a telescopic rod, 903, a spring, 904, a fixed plate, 905, a cleaning brush, 10, a stirring rod, 11, a spray head, 12, a driving structure, 1201, a driving shell, 1202, a first motor, 1203, a first gear, 1204, a second motor, 1205, a second gear, 13, a transmission sleeve, 14, a third gear, 15 and a fourth gear.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus consistent with some aspects of the disclosure as detailed in the accompanying claims.
The technical solutions of the embodiments 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, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
Example 1:
As shown in fig. 1 to 5, this embodiment proposes a sewage treatment agent spraying device, including a fixed table 1, a conveying structure 3, a driving structure 12, a transmission shaft 7 and a cleaning structure 9, a decontamination tank 4 is penetrated inside the fixed table 1, four corners of the bottom of the fixed table 1 are respectively and fixedly connected with a support column 2, one side of the top of the decontamination tank 4 is inserted with a liquid inlet pipe two 5, a discharging funnel is arranged at the bottom side of the interior of the decontamination tank 4, a liquid outlet pipe 6 is inserted in the center of the bottom of the decontamination tank 4, the conveying structure 3 is arranged at one side of the top of the fixed table 1 far away from the liquid inlet pipe two 5, the driving structure 12 is arranged at the top of the decontamination tank 4, the driving structure 12 comprises a driving shell 1201, a motor one 1202, a gear one 1203, a motor two 1204 and a gear two 1205, one side of the inside of the driving shell 1201 is provided with a motor I1202, the other side is provided with a motor II 1204, one end of the motor I1202 is fixedly connected with the decontamination basin 4, the other end is fixedly connected with a gear I1203, one end of the motor II 1204 is fixedly connected with the decontamination basin 4, the other end is fixedly connected with a gear II 1205, the transmission shaft 7 penetrates through the inside of the decontamination basin 4, one end of the transmission shaft 7 penetrates through the decontamination basin 4 and the inner wall of the driving shell 1201 to be movably connected, the other end of the transmission shaft 7 stretches into the inside of the liquid outlet pipe 6, the top of the outer wall of the transmission shaft 7 is sleeved with a transmission sleeve 13, the bottom of the outer wall of the transmission shaft 7 is sleeved with a fixed sleeve 8, the number of cleaning structures 9 is two, and two groups of cleaning structures 9 are respectively arranged on two sides of the transmission shaft 7.
The stirring rod 10 and the fixing frame 901 are rotated in different directions by the driving structure 12, so that the mixing and stirring efficiency is increased.
Example 2:
The scheme in the embodiment 1 is further described in conjunction with a specific working mode, and the scheme is described in detail below, wherein two sides of the outer wall of the transmission shaft 7 are fixedly connected with a plurality of equidistant stirring rods 10 respectively, the front sides and the rear sides of the stirring rods 10 are respectively provided with a spray head 11, the transmission shaft 7 and the stirring rods 10 are hollow, the transmission shaft 7 is communicated with the inside of the stirring rods 10, the outer wall of the transmission shaft 7 extending into the driving shell 1201 is sleeved with a gear IV 15, the top end of the transmission sleeve 13 penetrates through the decontamination pot 4 and stretches into the driving shell 1201 and is fixedly connected with a gear III 14, the gear III 14 is in meshed connection with a gear II 1205, and the gear IV 15 is in meshed connection with a gear I1203.
Through the cooperation of conveying structure 3, hollow transmission shaft 7, hollow puddler 10 and shower nozzle 11, can guarantee that sewage treatment agent abundant distributes in each degree of depth that the scrubbing was irritated 4, and then convenient follow-up mixing stirring reaction for with the mixing reaction of sewage, improve sewage treatment's efficiency.
Example 3:
The following describes the solution in embodiment 2 in further detail with reference to a specific working manner, wherein the conveying structure 3 comprises a treating agent tank 301, a conveying pump 302 is arranged on one side of the top of the treating agent tank 301, a liquid inlet pipe 303 is connected to the other side of the top of the treating agent tank 301 in an inserted manner, a connecting pipe 304 is connected to the water inlet of the conveying pump 302 in an inserted manner, a discharging pipe 305 is connected to the water outlet of the conveying pump 302 in an inserted manner, the bottom end of the connecting pipe 304 is connected to the treating agent tank 301 in an inserted manner, and the top end of the discharging pipe 305 is connected to the transmission shaft 7 in an inserted manner through the driving housing 1201.
Example 4:
The scheme in the embodiment 3 is further described in conjunction with a specific working manner, and details are described below, wherein each group of cleaning structure 9 comprises a fixing frame 901, a telescopic rod 902, a fixing plate 904 and a cleaning brush 905, one end of the fixing frame 901 is fixedly connected with a transmission sleeve 13, the other end of the fixing frame is fixedly connected with a fixing sleeve 8, one side of the fixing frame 901, which is far away from the transmission sleeve 13, is provided with a plurality of equidistant telescopic rods 902, one ends of the plurality of telescopic rods 902 are respectively fixedly connected with the fixing frame 901, the other end of the fixing frame is fixedly connected with the fixing plate 904, one side of the fixing plate 904, which is far away from the telescopic rods 902, is provided with a plurality of equidistant cleaning brushes 905, the outer walls of the plurality of telescopic rods 902 are respectively wound with springs 903, and one side of the plurality of cleaning brushes 905, which is far away from the fixing plate 904, is respectively abutted against the inner wall of the dirt removing tank 4.
Through the cooperation of telescopic link 902 and spring 903 for cleaning brush 905 butt is in addition to the inner wall of dirt removal 4 all the time, cleans the particulate impurity that adheres to the inner wall of dirt removal 4, thereby guarantees sewage treatment's quality.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (8)

1. A sewage treatment agent spraying device, characterized by comprising:
The sewage treatment device comprises a fixed table (1), wherein a sewage treatment tank (4) is arranged inside the fixed table (1), four corners of the bottom of the fixed table (1) are fixedly connected with support columns (2) respectively, a liquid inlet pipe II (5) is inserted into one side of the top of the sewage treatment tank (4), a discharge hopper is arranged at the bottom side of the inside of the sewage treatment tank (4), and a liquid outlet pipe (6) is inserted into the center of the bottom of the sewage treatment tank (4);
The conveying structure (3) is arranged at one side of the top of the fixed table (1) far away from the liquid inlet pipe II (5);
The device comprises a driving structure (12), wherein the driving structure (12) is arranged at the top of a decontamination tank (4), the driving structure (12) comprises a driving shell (1201), a first motor (1202), a first gear (1203), a second motor (1204) and a second gear (1205), one side of the interior of the driving shell (1201) is provided with the first motor (1202), the other side of the interior of the driving shell is provided with the second motor (1204), one end of the first motor (1202) is fixedly connected with the decontamination tank (4), the other end of the motor is fixedly connected with the first gear (1203), one end of the second motor (1204) is fixedly connected with the decontamination tank (4), and the other end of the motor is fixedly connected with the second gear (1205);
The transmission shaft (7), the transmission shaft (7) is worn to locate in the inside of the decontamination pot (4), one end of the transmission shaft (7) passes through the inside wall swing joint of the decontamination pot (4) and the driving shell (1201), the other end stretches into the inside of the drain pipe (6), the outer wall top of the transmission shaft (7) is sleeved with the transmission sleeve (13), the outer wall bottom of the transmission shaft (7) is sleeved with the fixed sleeve (8);
The cleaning structures (9), the number of the cleaning structures (9) is two, and the two groups of the cleaning structures (9) are respectively arranged on two sides of the transmission shaft (7).
2. The sewage treatment agent spraying device according to claim 1, wherein two sides of the outer wall of the transmission shaft (7) are fixedly connected with a plurality of equidistant stirring rods (10) respectively, the front sides and the rear sides of the stirring rods (10) are provided with spray heads (11) respectively, the transmission shaft (7) and the stirring rods (10) are hollow, and the transmission shaft (7) is communicated with the inside of the stirring rods (10).
3. The sewage treatment agent spraying device according to claim 1, wherein the outer wall of the transmission shaft (7) extending into the driving shell (1201) is sleeved with a gear IV (15), and the top end of the transmission sleeve (13) penetrates through the sewage removal tank (4) to extend into the driving shell (1201) and is fixedly connected with a gear III (14).
4. A sewage treatment agent spraying device according to claim 3, wherein the third gear (14) is in meshed connection with the second gear (1205), and the fourth gear (15) is in meshed connection with the first gear (1203).
5. The sewage treatment agent spraying device according to claim 1, wherein the conveying structure (3) comprises a treatment agent box (301), a conveying pump (302) is arranged on one side of the top of the treatment agent box (301), a first liquid inlet pipe (303) is inserted on the other side of the top of the treatment agent box (301), a connecting pipe (304) is inserted at the water inlet of the conveying pump (302), and a discharging pipe (305) is inserted at the water outlet of the conveying pump (302).
6. The sewage treatment agent spraying device according to claim 5, wherein the bottom end of the connecting pipe (304) is inserted into the treatment agent tank (301), and the top end of the discharging pipe (305) is inserted into the transmission shaft (7) through the driving housing (1201).
7. The sewage treatment agent spraying device according to claim 1, wherein each group of the cleaning structures (9) comprises a fixing frame (901), telescopic rods (902), fixing plates (904) and cleaning brushes (905), one end of the fixing frame (901) is fixedly connected with a transmission sleeve (13), the other end of the fixing frame is fixedly connected with a fixing sleeve (8), one side, far away from the transmission sleeve (13), of the fixing frame (901) is provided with a plurality of equidistant telescopic rods (902), one ends of the telescopic rods (902) are respectively fixedly connected with the fixing frame (901), the other ends of the telescopic rods are fixedly connected with the fixing plates (904), and one side, far away from the telescopic rods (902), of the fixing plates (904) is provided with a plurality of equidistant cleaning brushes (905).
8. The sewage treatment agent spraying device according to claim 7, wherein the outer walls of the telescopic rods (902) are respectively connected with springs (903) in a surrounding mode, and one sides, away from the fixing plate (904), of the cleaning brushes (905) are respectively abutted against the inner walls of the sewage removal tank (4).
CN202421166749.9U 2024-05-27 2024-05-27 Sewage treatment agent sprinkler Active CN222490644U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202421166749.9U CN222490644U (en) 2024-05-27 2024-05-27 Sewage treatment agent sprinkler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202421166749.9U CN222490644U (en) 2024-05-27 2024-05-27 Sewage treatment agent sprinkler

Publications (1)

Publication Number Publication Date
CN222490644U true CN222490644U (en) 2025-02-18

Family

ID=94556483

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202421166749.9U Active CN222490644U (en) 2024-05-27 2024-05-27 Sewage treatment agent sprinkler

Country Status (1)

Country Link
CN (1) CN222490644U (en)

Similar Documents

Publication Publication Date Title
CN216295793U (en) Offline RO membrane cleaning device
CN214141877U (en) Industrial sewage purification and reuse device
CN111875115A (en) Sewage treatment is with preventing blockking up sedimentation tank convenient to clearance dirt
CN211243197U (en) Non-contact type deep cleaning and disinfecting device for toilet
CN222490644U (en) Sewage treatment agent sprinkler
CN221656240U (en) A spray ammonia removal device
CN219440086U (en) Ultrasonic disinfection equipment for laboratory instrument
CN219259673U (en) Disinfection and purification water treatment device
CN217665179U (en) Pipeline scrubbing belt cleaning device
CN116254183A (en) Fermentation cylinder is used in CHO cell culture convenient to cleaning and disinfecting
CN213719272U (en) Livestock-raising ground cleaning device
CN222225969U (en) A sewage treatment agent spraying device for sewage treatment
CN212238499U (en) Biochemical pond washing unit
CN219885773U (en) Algae removal device is covered to play water weir
CN106172081A (en) A kind of cleaning machine
CN221453819U (en) Heavy metal contaminated farmland soil restoration device
CN222556595U (en) Automatic sewage treatment equipment for sewage treatment
CN222324420U (en) Industrial wastewater treatment pond convenient to clearance
CN214360605U (en) Underground water purification treatment device
CN217220388U (en) Industrial environment-friendly device for biological pollutants
CN218079163U (en) Cleaning device for ultraviolet tube of ship ultraviolet reactor
CN222918193U (en) An internal inflow membrane grille cleaning device
CN210340535U (en) Breeding wastewater treatment device
CN219663028U (en) Sewage treatment device
CN217042002U (en) Concentrated cleaning device that uses of desulfurization waste water

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant