CN215844709U - Clean structure of raw water storage tank inner wall in system water workshop for pharmacy - Google Patents

Clean structure of raw water storage tank inner wall in system water workshop for pharmacy Download PDF

Info

Publication number
CN215844709U
CN215844709U CN202121460973.5U CN202121460973U CN215844709U CN 215844709 U CN215844709 U CN 215844709U CN 202121460973 U CN202121460973 U CN 202121460973U CN 215844709 U CN215844709 U CN 215844709U
Authority
CN
China
Prior art keywords
storage tank
raw water
water storage
cleaning
tank main
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
CN202121460973.5U
Other languages
Chinese (zh)
Inventor
张丽莉
艾克梓
赵宇
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.)
Benxi Hengkang Pharmaceutical Co Ltd
Original Assignee
Benxi Hengkang Pharmaceutical 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 Benxi Hengkang Pharmaceutical Co Ltd filed Critical Benxi Hengkang Pharmaceutical Co Ltd
Priority to CN202121460973.5U priority Critical patent/CN215844709U/en
Application granted granted Critical
Publication of CN215844709U publication Critical patent/CN215844709U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cleaning In General (AREA)

Abstract

The utility model discloses a raw water storage tank inner wall cleaning structure of a pharmaceutical water production workshop, which comprises a raw water storage tank main body, a support and a buckle cover, wherein the buckle cover is buckled on the raw water storage tank main body, the support is arranged above the buckle cover, a lifting adjusting structure is arranged in the support, the lower end of the lifting adjusting structure penetrates through the buckle cover and extends into the raw water storage tank main body, and a rotation control structure is arranged at the lower end of the lifting adjusting structure. Simple structure and high automation degree.

Description

Clean structure of raw water storage tank inner wall in system water workshop for pharmacy
Technical Field
The utility model relates to the technical field of auxiliary equipment of pharmaceutical workshops, in particular to a cleaning structure for an inner wall of a raw water storage tank of a pharmaceutical water production workshop.
Background
The water for the pharmaceutical process can be divided into drinking water, purified water and injection water according to different purposes, wherein the sterile raw material in a sterile plant area directly contacts the final washing water of a packaging material of the sterile raw material, the sterile raw material is refined, the sterile product directly contacts the final fine washing water of the packaging material of the drug, and the injection and sterile flushing agent ingredients all need to use the water quality of the injection water level, at present, a water production system in the sterile plant area is not perfect, in particular to a raw water storage tank, the raw water generally refers to tap water or deep well water supplied by a tap water company, the raw water cannot be directly used as the pharmaceutical water, particles, floating materials, scales and the like are frequently contained in the raw water, therefore, the raw water storage tank for storing the raw water is generally cleaned regularly, but the raw water storage tank for storing the raw water needs to be cleaned manually, a large amount of labor force is needed, the labor intensity is high, and the operation is complicated, in view of the above, the present invention has been made in view of the above problems.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a raw water storage tank inner wall cleaning structure for a pharmaceutical water production workshop, and solves the problems in the background art.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a raw water storage tank inner wall cleaning structure for a pharmaceutical water production workshop comprises a raw water storage tank main body, a support and a buckling cover, wherein the buckling cover is buckled on the raw water storage tank main body, the support is arranged above the buckling cover, a lifting adjusting structure is arranged in the support, the lower end of the lifting adjusting structure penetrates through the buckling cover and extends into the raw water storage tank main body, a rotation control structure is arranged at the lower end of the lifting adjusting structure, an annular frame is arranged at the rotation end of the rotation control structure, a contact type cleaning assembly is arranged on the annular frame, a pressure charging type water supply assembly is arranged on one side of the raw water storage tank main body, and the water outlet end of the pressure charging type water supply assembly extends into the raw water storage tank main body and is communicated with the contact type cleaning assembly;
the rotation control structure includes: the lifting adjusting mechanism comprises a mounting plate, a servo motor, an annular guide rail and an arc-shaped sliding block, wherein the mounting plate is arranged at the lower end of the lifting adjusting structure, the servo motor is arranged on the mounting plate, the driving end of the servo motor is connected with an annular frame, the annular guide rail is arranged on the lower end face of the mounting plate, and the arc-shaped sliding block is sleeved on the annular guide rail in a sliding mode along an annular array and is connected with the annular frame;
the contact cleaning assembly comprises: the cleaning device comprises a side wall cleaning member and a bottom cleaning member, wherein the side wall cleaning member is arranged on the side wall of the annular frame, and the bottom cleaning member is arranged on the lower end of the annular frame.
Preferably, the elevation adjustment structure includes: multistage pneumatic cylinder and two flexible posts, multistage pneumatic cylinder sets up on the support and the piston end is connected with the mounting panel along the vertical direction, two flexible post symmetry sets up and is connected, the other end is connected with the mounting panel in multistage pneumatic cylinder both sides and one end and support.
Preferably, the sidewall cleaning member includes: mount pad, cleaning brush and ring conduit, the mount pad sets up on the annular frame along annular array, the cleaning brush sets up on the mount pad and pastes mutually with the inner wall of raw water storage tank main part, the ring conduit sets up on the mounting panel and is linked together with booster-type water supply assembly, be provided with the nozzle on the ring conduit lateral wall.
Preferably, the bottom cleaning member comprises: the arc frame is a circular array and is arranged at the lower end of the annular frame, and the arc brush is arranged on the side wall of the arc frame and is matched with the lower end face of the raw water storage tank main body.
Preferably, the pressurized water supply assembly includes: clean water tank, booster pump and flexonics pipe, clean water tank sets up in raw water storage tank main part one side, the end of intaking of booster pump communicates with clean water tank mutually, flexonics pipe's one end is linked together with the play water end of booster pump, the other end stretches into and is linked together with the ring pipe in the raw water storage tank main part.
Preferably, the buckle cover is of a splicing type combined structure.
Advantageous effects
The utility model provides a cleaning structure for an inner wall of a raw water storage tank of a water production workshop for pharmacy. The method has the following beneficial effects: the inner wall cleaning structure of the raw water storage tank of the pharmaceutical water production workshop improves the existing raw water storage tank main body, a buckle cover is arranged on the raw water storage tank main body, a lifting adjusting structure is arranged on a support, the lower end of the lifting adjusting structure extends into the buckle cover and is provided with a rotation control structure, the rotation end of the rotation control structure is provided with an annular frame, a contact type cleaning assembly is arranged on the annular frame, one side of the raw water storage tank main body is provided with a pressure boosting water supply assembly, one end of the pressure boosting water supply assembly extends into the raw water storage tank main body and is communicated with the contact type cleaning assembly, when the inner wall of the raw water storage tank main body needs to be cleaned, the rotation control structure is started, the annular frame and the contact type cleaning assembly are subjected to rotation control by the rotation control structure, meanwhile, the pressure boosting water supply assembly is started to provide cleaning water for the contact type cleaning assembly, and then the vertical height adjustment is carried out on the rotation control structure by the lifting adjusting structure, and then realize carrying out comprehensive cleanness to the inner wall of raw water storage tank main part, simple structure, degree of automation is high, has solved prior art, because can contain granule, floater and produce incrustation scale etc. easily in the raw water often, therefore, the raw water storage tank of storage raw water all can regularly wash, but this all needs the manual work to wash, needs a large amount of labours, intensity of labour is great, operates comparatively loaded down with trivial details problem.
Drawings
Fig. 1 is a schematic perspective structure diagram of a structure for cleaning the inner wall of a raw water storage tank of a water production workshop for pharmacy.
Fig. 2 is a schematic cross-sectional structural view of the inner wall cleaning structure of the raw water storage tank of the water production workshop for pharmacy shown in fig. 1.
Fig. 3 is a schematic partial enlarged structural view of the inner wall cleaning structure of the raw water storage tank of the water production workshop for pharmacy, which is shown in fig. 2.
Fig. 4 is a schematic axial structure view of the inner wall cleaning structure of the raw water storage tank of the pharmaceutical production workshop according to the utility model shown in fig. 3.
Fig. 5 is a schematic side view cross-sectional structure view of the inner wall cleaning structure of the raw water storage tank of the water production plant for pharmacy, which is shown in fig. 3.
In the figure: 1. a raw water storage tank body; 2. a support; 3. covering; 4. an annular frame; 5. mounting a plate; 6. a servo motor; 7. an annular guide rail; 8. an arc-shaped sliding block; 9. a multi-stage hydraulic cylinder; 10. A telescopic column; 11. a mounting seat; 12. a cleaning brush; 13. an annular tube; 14. a nozzle; 15. an arc-shaped frame; 16. an arc brush; 17. cleaning the water tank; 18. a booster pump; 19. flexible connecting pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
Referring to fig. 1 to 5, the present invention provides a cleaning structure for an inner wall of a raw water storage tank of a water production plant for pharmaceutical use:
example (b): as can be known from the attached drawings 1-5 of the specification, the scheme comprises a raw water storage tank main body 1, a support 2 and a buckle cover 3, the position relation and the connection relation are as follows, the buckle cover 3 is buckled on the raw water storage tank main body 1, the support 2 is arranged above the buckle cover 3, a lifting adjusting structure is arranged in the support 2, the lower end of the lifting adjusting structure penetrates through the buckle cover 3 and extends into the raw water storage tank main body 1, the lower end of the lifting adjusting structure is provided with a rotating control structure, the rotating end of the rotating control structure is provided with an annular frame 4, the annular frame 4 is provided with a contact type cleaning component, one side of the raw water storage tank main body 1 is provided with a pressure-increasing type water supply component, the water outlet end of the pressure-increasing type water supply component extends into the raw water storage tank main body 1 and is communicated with the contact type cleaning component, the existing raw water storage tank main body 1 is improved, the buckle cover 3 is arranged on the raw water storage tank main body 1, the bracket 2 is provided with a lifting adjusting structure, the lower end of the lifting adjusting structure extends into the buckle cover 3 and is provided with a rotation control structure, the rotation end of the rotation control structure is provided with an annular frame 4, a contact type cleaning component is arranged on the annular frame 4, one side of the raw water storage tank main body 1 is provided with a pressure boosting water supply component, one end of the pressure boosting water supply component extends into the raw water storage tank main body 1 and is communicated with the contact type cleaning component, when the inner wall of the raw water storage tank main body 1 needs to be cleaned, the rotation control structure is started, the rotation control structure is utilized to carry out rotation control on the annular frame 4 and the contact type cleaning component, the pressure boosting water supply component is started to provide cleaning water for the contact type cleaning component, then the lifting adjusting structure is utilized to carry out vertical height adjustment on the rotation control structure, and further the comprehensive cleaning of the inner wall of the raw water storage tank main body 1 is realized, the structure is simple, and the automation degree is high;
the above-mentioned rotation control structure includes: the lifting adjusting mechanism comprises a mounting plate 5, a servo motor 6, an annular guide rail 7 and an arc-shaped sliding block 8, wherein the mounting plate 5 is arranged at the lower end of the lifting adjusting structure, the servo motor 6 is arranged on the mounting plate 5, the driving end of the servo motor is connected with an annular frame 4, the annular guide rail 7 is arranged on the lower end face of the mounting plate 5, and the arc-shaped sliding block 8 is sleeved on the annular guide rail 7 in a sliding mode along an annular array and is connected with the annular frame 4; the contact cleaning assembly described above comprises: the side wall cleaning component is arranged on the side wall of the annular frame 4, the bottom cleaning component is arranged on the lower end of the annular frame 4, when the side wall cleaning component is used, a booster water supply assembly is used for supplying water for the cleaning structure and washing the inner side wall surface of the raw water storage tank, the servo motor 6 on the lower end surface of the mounting plate 5 is started at the same time, the driving end of the servo motor 6 is controlled to rotate, then the rotating frame is driven to rotate along the annular guide rail 7 under the connecting action of the arc-shaped sliding block 8, so that the side wall cleaning component and the bottom cleaning component on the rotating frame rotate simultaneously, the moving end of the lifting adjusting structure is controlled to expand while the side wall cleaning component rotates, thereby the annular frame 4 is moved in the vertical direction, then the inner side wall surface of the raw water main body 1 of the storage tank is scrubbed and cleaned in the moving process, and dregs such as scale and the like are scrubbed under the scouring action of cleaning water flow, downward, when the annular frame 4 moves to the lower part of the tank body, the bottom cleaning component is attached to the bottom surface of the inner wall of the tank body, so that the bottom of the tank body can be automatically cleaned.
As can be seen from fig. 1 to 5 of the specification, in the specific implementation process, the lifting adjusting structure includes: multistage pneumatic cylinder 9 and two flexible posts 10, multistage pneumatic cylinder 9 sets up on support 2 and the piston end is connected with mounting panel 5 along the vertical direction, two flexible post 10 symmetries set up in 9 both sides of multistage pneumatic cylinder and one end is connected with support 2, the other end is connected with mounting panel 5, during the use, piston end through controlling multistage pneumatic cylinder 9 expands or contracts, and then can drive mounting panel 5 and remove under the spacing connection effect of the flexible post 10 of both sides on the vertical direction, mounting panel 5 removes steadily, the device operation is stable.
In a specific implementation, the sidewall cleaning member includes: mount pad 11, cleaning brush 12 and ring conduit 13, mount pad 11 sets up on annular frame 4 along annular array, and cleaning brush 12 sets up on mount pad 11 and pastes mutually with the inner wall of raw water storage tank main part 1, and ring conduit 13 sets up on mounting panel 5 and is linked together with booster-type water supply assembly, is provided with nozzle 14 on the ring conduit 13 lateral wall, and wherein the clean component in bottom includes: arc frame 15 and arc brush 16, arc frame 15 is circular array and sets up on the lower extreme of annular frame 4, arc brush 16 sets up on arc frame 15 lateral wall and with the lower terminal surface phase-match of raw water storage tank main part 1, during the use, cleaning brush 12 on the mount pad 11 pastes with jar side wall mutually, and then in the gyration in-process, can effectively clear up adnexed peculiar smell on the inside, the same thing, arc brush 16 and jar body bottom contact on arc frame 15, can scrape the cleanness to the adnexed debris of jar body bottom, moreover, the steam generator is simple in structure, the reliability is high, brush head can adopt the sponge brush, stereoplasm brush or other similar products replace, use cost is lower.
In a specific implementation process, the pressurized water supply assembly comprises: clean water tank 17, booster pump 18 and flexible connecting pipe 19, clean water tank 17 sets up in raw water storage tank main part 1 one side, the end of intaking of booster pump 18 is linked together with clean water tank 17, the one end of flexible connecting pipe 19 is linked together with the play water end of booster pump 18, the other end stretches into raw water storage tank main part 1 and is linked together with ring pipe 13, in use, start booster pump 18 on clean water tank 17, utilize booster pump 18 to take out the clean water in clean water tank 17, and further inject into flexible connecting pipe 19, inject into ring pipe 13 via flexible connecting pipe 19, spout at nozzle 14 through the ring pipe 13 lateral wall, thereby realize the automatic supply of clean rivers.
In the concrete implementation process, the buckle cover 3 is of a splicing type combined structure, and the buckle cover 3 is convenient to detach, so that the convenience of maintaining the device can be improved.
In conclusion, the inner wall cleaning structure of the raw water storage tank of the pharmaceutical workshop improves the existing raw water storage tank main body 1, the buckle cover 3 is arranged on the raw water storage tank main body 1, the lifting adjusting structure is arranged on the bracket 2, the lower end of the lifting adjusting structure extends into the buckle cover 3 and is provided with the rotation control structure, the rotation end of the rotation control structure is provided with the annular frame 4, the contact type cleaning component is arranged on the annular frame 4, the pressurizing water supply component is arranged at one side of the raw water storage tank main body 1, one end of the pressurizing water supply component extends into the raw water storage tank main body 1 and is communicated with the contact type cleaning component, when the inner wall of the raw water storage tank main body 1 needs to be cleaned, the rotation control structure is started, the rotation control structure is utilized to carry out rotation control on the annular frame 4 and the contact type cleaning component, and simultaneously the pressurizing water supply component is started to provide cleaning water for the contact type cleaning component, then utilize the lift adjustment structure to carry out vertical altitude mixture control to rotation control structure, and then realize carrying out comprehensive cleanness to the inner wall of raw water storage tank main part 1, moreover, the steam generator is simple in structure, and degree of automation is high, solved prior art, because the raw water often can contain the granule, the floater and produce incrustation scale etc. easily, consequently, the raw water storage tank of storage raw water all can regularly wash, but this all needs the manual work to wash, need a large amount of labours, intensity of labour is great, the comparatively loaded down with trivial details problem of operation.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A cleaning structure for the inner wall of a raw water storage tank of a water production workshop for pharmacy comprises a raw water storage tank main body (1), a bracket (2) and a buckle cover (3), it is characterized in that the buckle cover (3) is buckled on the raw water storage tank main body (1), the bracket (2) is arranged above the buckle cover (3), a lifting adjusting structure is arranged in the bracket (2), the lower end of the lifting adjusting structure penetrates through the buckle cover (3) and extends into the raw water storage tank main body (1), the lower end of the lifting adjusting structure is provided with a rotating control structure, the rotating end of the rotating control structure is provided with an annular frame (4), a contact type cleaning component is arranged on the annular frame (4), a booster type water supply component is arranged on one side of the raw water storage tank main body (1), the water outlet end of the pressurized water supply assembly extends into the raw water storage tank main body (1) and is communicated with the contact type cleaning assembly;
the rotation control structure includes: the lifting adjusting mechanism comprises a mounting plate (5), a servo motor (6), an annular guide rail (7) and an arc-shaped sliding block (8), wherein the mounting plate (5) is arranged at the lower end of the lifting adjusting structure, the servo motor (6) is arranged on the mounting plate (5) and the driving end of the servo motor is connected with an annular frame (4), the annular guide rail (7) is arranged on the lower end face of the mounting plate (5), and the arc-shaped sliding block (8) is sleeved on the annular guide rail (7) in a sliding mode along an annular array and is connected with the annular frame (4);
the contact cleaning assembly comprises: a side wall cleaning member provided on the side wall of the annular frame (4), and a bottom cleaning member provided on the lower end of the annular frame (4).
2. The inner wall cleaning structure for the raw water storage tank of the water production plant for pharmacy according to claim 1, wherein the lifting adjusting structure comprises: multistage pneumatic cylinder (9) and two flexible posts (10), multistage pneumatic cylinder (9) set up on support (2) and the piston end is connected with mounting panel (5) along the vertical direction, two flexible post (10) symmetry sets up and is connected, the other end is connected with mounting panel (5) in multistage pneumatic cylinder (9) both sides and one end and support (2).
3. The raw water storage tank inner wall cleaning structure for the pharmaceutical water production plant according to claim 1, characterized in that the side wall cleaning member comprises: mount pad (11), cleaning brush (12) and ring pipe (13), mount pad (11) set up on annular frame (4) along the annular array, cleaning brush (12) set up on mount pad (11) and paste mutually with the inner wall of raw water storage tank main part (1), ring pipe (13) set up on mounting panel (5) and are linked together with booster-type water supply assembly, be provided with nozzle (14) on ring pipe (13) lateral wall.
4. The inner wall cleaning structure for the raw water storage tank of a pharmaceutical water production plant according to claim 3, wherein the bottom cleaning member comprises: arc frame (15) and arc brush (16), arc frame (15) are circular array and set up on the lower extreme of annular frame (4), arc brush (16) set up on arc frame (15) lateral wall and with the lower terminal surface phase-match of raw water storage tank main part (1).
5. The inner wall cleaning structure for the raw water storage tank of the water production plant for pharmacy according to claim 4, wherein the pressurized water supply assembly comprises: clean water tank (17), booster pump (18) and flexonics pipe (19), clean water tank (17) set up in raw water storage tank main part (1) one side, the end of intaking of booster pump (18) is linked together with clean water tank (17), the one end of flexonics pipe (19) is linked together, the other end stretches into and is linked together with ring pipe (13) in raw water storage tank main part (1) with the play water end of booster pump (18).
6. The inner wall cleaning structure of the raw water storage tank of the water production plant for pharmacy according to any one of claims 1 to 5, characterized in that the buckle cover (3) is a splicing type combined structure.
CN202121460973.5U 2021-06-30 2021-06-30 Clean structure of raw water storage tank inner wall in system water workshop for pharmacy Active CN215844709U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121460973.5U CN215844709U (en) 2021-06-30 2021-06-30 Clean structure of raw water storage tank inner wall in system water workshop for pharmacy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121460973.5U CN215844709U (en) 2021-06-30 2021-06-30 Clean structure of raw water storage tank inner wall in system water workshop for pharmacy

Publications (1)

Publication Number Publication Date
CN215844709U true CN215844709U (en) 2022-02-18

Family

ID=80335475

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121460973.5U Active CN215844709U (en) 2021-06-30 2021-06-30 Clean structure of raw water storage tank inner wall in system water workshop for pharmacy

Country Status (1)

Country Link
CN (1) CN215844709U (en)

Similar Documents

Publication Publication Date Title
CN209848695U (en) Ultrafiltration membrane equipment cleaning device
CN215844709U (en) Clean structure of raw water storage tank inner wall in system water workshop for pharmacy
CN212527191U (en) Clean grinding device is used in production of aluminium system perfume atomizer
CN112976092A (en) Clean all-in-one of MPP cable protection pipe cutting
CN211676378U (en) Rectifying tower with self-cleaning function
CN112170294A (en) Auto parts cleaning device
CN112006635B (en) Novel shoe brushing device
CN212469011U (en) Cleaning device for auto-parts production is used
CN209816313U (en) A impurity cleaning device for auto-parts's electrophoresis equipment
CN109047058A (en) The cleaning equipment of numerical control processing
CN210752672U (en) Cleaning device for drug intermediate reaction kettle
CN209736193U (en) belt cleaning device is used in aluminium scrap recovery production
CN213001646U (en) Chemical waste cleaning device
CN214773499U (en) Lower die device of foaming die mechanism
CN216260463U (en) Thorough putty of ejection of compact generates uses compounding device
CN215584704U (en) Medical treatment practise midwifery childbirth device convenient to it is clean
CN213530087U (en) Reation kettle self-cleaning device is used in cement grinding aid production
CN219325062U (en) Polishing device
CN110001595B (en) Car washer
CN213256131U (en) Industrial tank cleaning device
CN116078761B (en) Device and method for efficiently cleaning tank wall of liquid medicine
CN220951387U (en) Pond trades fills out processing apparatus
CN221017720U (en) Automobile part ultrasonic cleaning equipment with moving structure
CN218328304U (en) Inside self-cleaning device of integrative lampblack absorber of oil smoke purification
CN219560662U (en) Spraying device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant