CN111804678A - Automatic cleaning system for central calandria and control method - Google Patents

Automatic cleaning system for central calandria and control method Download PDF

Info

Publication number
CN111804678A
CN111804678A CN202010693685.8A CN202010693685A CN111804678A CN 111804678 A CN111804678 A CN 111804678A CN 202010693685 A CN202010693685 A CN 202010693685A CN 111804678 A CN111804678 A CN 111804678A
Authority
CN
China
Prior art keywords
pipeline
automatic cleaning
communicated
central
automatic
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.)
Pending
Application number
CN202010693685.8A
Other languages
Chinese (zh)
Inventor
渡边启介
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.)
Tiji Trading (Shanghai) Co.,Ltd.
Tiki Trading (Hong Kong) Ltd.
Original Assignee
Tiji Trading Shanghai 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 Tiji Trading Shanghai Co ltd filed Critical Tiji Trading Shanghai Co ltd
Priority to CN202010693685.8A priority Critical patent/CN111804678A/en
Publication of CN111804678A publication Critical patent/CN111804678A/en
Priority to PCT/CN2021/094779 priority patent/WO2022012157A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/032Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0328Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/032Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0325Control mechanisms therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

The invention belongs to the technical field of central calandria, and discloses an automatic cleaning system and a control method for a central calandria, wherein the automatic cleaning system for the central calandria is arranged in a negative pressure system in a mechanical room and a plurality of dental chairs for diagnosis and treatment arranged in a diagnosis and treatment room; the negative pressure system is communicated with a main pipeline, the plurality of dental chairs for diagnosis and treatment are communicated with the main pipeline through pipelines respectively, the outer end of the main pipeline is communicated with an auxiliary pipeline, and the outer end of the auxiliary pipeline is communicated with an automatic pipeline cleaning device. The invention arranges the pipeline automatic cleaning device at the tail end of the main pipeline, and when the number of the using points is small, the pipeline automatic cleaning device can increase the air quantity flowing into the main pipeline from the outside, and when the number of the using points is large, the air quantity flowing from the outside is reduced, thereby ensuring that the air flow always exists in the pipeline, maintaining the constant air pressure in the pipeline, completely sending the sucked dirt into the negative pressure device of the mechanical room, and maintaining the suction force of all dental chair points to be constant by maintaining the air pressure in the pipeline to be constant.

Description

Automatic cleaning system for central calandria and control method
Technical Field
The invention belongs to the technical field of central calandria, and particularly relates to an automatic cleaning system for a central calandria and a control method.
Background
At present, when a dental hospital diagnoses, each dental chair needs to be provided with a negative pressure system. In view of sanitary and noise surfaces, central exhaust pipe negative pressure systems are commonly used. The central pipe arrangement negative pressure system is characterized in that a negative pressure device is installed in a mechanical room, pipe arrangement work is performed underground, a pipeline is designed to each dental chair point, and one negative pressure device corresponds to the suction mode of a plurality of dental chairs. The dental central tube negative pressure system is roughly classified into 3 categories of negative pressure for diagnosis and treatment, negative pressure for oral cavity external use, and negative pressure for craftsman.
Saliva and blood sucked by negative pressure for diagnosis and treatment, water for dental turbine handpiece, water for three-way syringe, etc., cut dust sucked by negative pressure for oral use, negative pressure for craftsman, and fly powder scattered in the oral cavity of patient are transported to the negative pressure system of the machine room through a pipeline.
The number of the using points of the chair side negative pressure can continuously change from 0 to the maximum number of the set points, but the thickness of the pipeline is not changed. When the number of the simultaneously used point positions is small, the wind speed of the main pipeline can be reduced, and the conveying capacity of the negative pressure equipment in the mechanical room is reduced. Can cause residual dirt in the pipeline and also be the root cause of bacterial reproduction and pipeline blockage.
Through the above analysis, the problems and defects of the prior art are as follows: when the negative pressure wind speed in the central calandria is reduced, the residual dirt in the pipeline can be caused, and the bacterial reproduction and the pipeline blockage can be easily caused.
The difficulty in solving the above problems and defects is: in a common central calandria design, the end of the pipe is connected to the chair point farthest from the machine room.
The significance for solving the problems and the defects is as follows: dirt is slowly accumulated in the pipeline and is solidified, so that the negative pressure attraction force at the dental chair side is slowly reduced, and the diagnosis and treatment efficiency is prevented from being reduced. Prevent the bacterium from breeding and producing odor, which affects the indoor environment.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an automatic cleaning system for a central pipe and a control method.
The invention is realized in this way, a central calandria automatic cleaning system includes:
the negative pressure system is arranged in the mechanical room, and the plurality of dental chairs are arranged in the diagnosis and treatment room;
the negative pressure system is communicated with a main pipeline, the plurality of dental chairs for diagnosis and treatment are communicated with the main pipeline through pipelines respectively, the outer end of the main pipeline is communicated with an auxiliary pipeline, and the outer end of the auxiliary pipeline is communicated with an automatic pipeline cleaning device.
Furthermore, an anti-backflow calandria structure is arranged between the main pipeline and the auxiliary pipeline.
Further, the automatic pipeline cleaning equipment is arranged in a diagnosis and treatment room or a mechanical room.
Further, the automatic pipeline cleaning equipment is provided with a second silencing barrel, an external air inlet is arranged at the front end of the second silencing barrel, the rear end of the second silencing barrel is communicated with an air pressure sensing part through an air inflow device, the rear end of the air pressure sensing part is communicated with a first silencing barrel, and an auxiliary pipeline connecting device is arranged on the first silencing barrel.
Another object of the present invention is to provide a method for controlling an automatic cleaning system for a central pipe, comprising:
the automatic pipeline cleaning equipment senses the air pressure in the main pipeline automatically, adjusts the inflow amount of the air from the outside, and keeps the suction force of all the dental chair point positions constant by keeping the air pressure in the pipeline constant.
By combining all the technical schemes, the invention has the advantages and positive effects that:
the invention arranges the pipeline automatic cleaning equipment at the tail end of the main pipeline, and when the number of the using points is small, the pipeline automatic cleaning equipment can increase the air quantity flowing into the main pipeline from the outside, and when the number of the using points is large, the air quantity flowing into the main pipeline from the outside is reduced, thereby ensuring that the air flow always exists in the pipeline, maintaining the constant air pressure in the pipeline and completely sending the sucked dirt into the negative pressure equipment of the mechanical room.
When the negative pressure equipment of machinery room starts, the automatic pipeline cleaning equipment also starts simultaneously, senses the air pressure in the main pipeline automatically, and adjusts the air inflow from the outside, and the suction force of all the dental chair point positions is kept constant by maintaining the air pressure in the pipeline constant.
The invention can prevent sewage from flowing back to the automatic pipeline cleaning equipment by adding the counter-flow prevention calandria design.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a schematic structural view of an automatic central pipe cleaning system according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the automatic pipe cleaning device provided by the embodiment of the invention when the automatic pipe cleaning device is arranged in a mechanical room.
Fig. 3 is a schematic structural diagram of an automatic pipeline cleaning device provided by an embodiment of the invention.
In the figure: 1. a negative pressure system; 2. a dental chair for diagnosis and treatment; 3. a main pipeline; 4. a secondary pipe; 5. an anti-backflow calandria structure; 6. automatic pipeline cleaning equipment; 6-1, an auxiliary pipeline connecting device; 6-2, a first silencing barrel; 6-3, an air pressure sensing part; 6-4, an inflow air quantity device; 6-5, a second silencing barrel; 6-6 and an external air inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides an automatic cleaning system and a control method for a central pipe, and the invention is described in detail below with reference to the accompanying drawings.
The invention provides a control method of a central pipe arrangement automatic cleaning system, which comprises the following steps:
the automatic pipeline cleaning equipment senses the air pressure in the main pipeline automatically, adjusts the inflow amount of the air from the outside, and keeps the suction force of all the dental chair point positions constant by keeping the air pressure in the pipeline constant.
As shown in fig. 1 and 2, an embodiment of the present invention provides an automatic cleaning system for a central pipe bank, including: the negative pressure system 1, the dental chair 2, the main pipeline 3, the auxiliary pipeline 4, the anti-reflux calandria structure 5 and the automatic pipeline cleaning equipment 6.
Negative pressure system 1 sets up in the machinery room, and a plurality of dental chair 2 settings of diagnosing are diagnosing indoorly, 3 one end of trunk line and negative pressure system 1 intercommunication, and a plurality of dental chair 2 of diagnosing are respectively through pipeline and 3 intercommunications of trunk line, and 3 outer ends of trunk line intercommunication have auxiliary duct 4, and 4 outer ends of auxiliary duct and the automatic equipment 6 intercommunications that cleans of pipeline.
An anti-backflow calandria structure 5 is arranged between the main pipeline 3 and the auxiliary pipeline 4. Through the design of the counter-flow prevention calandria, the counter-flow of sewage into the automatic pipeline cleaning equipment can be prevented.
The automatic pipeline cleaning equipment 6 is arranged in a diagnosis and treatment room or a mechanical room. The automatic pipeline cleaning equipment 6 is provided with a second silencing barrel 6-5, the front end of the second silencing barrel 6-5 is provided with an external air inlet 6-6, the rear end of the second silencing barrel 6-5 is communicated with an air pressure sensing part 6-3 through an air inflow device 6-4, the rear end of the air pressure sensing part 6-3 is communicated with a first silencing barrel 6-2, and an auxiliary pipeline connecting device 6-1 is arranged on the first silencing barrel 6-2.
The auxiliary pipeline connecting device 6-1 is connected with an auxiliary pipeline, external air enters the automatic pipeline cleaning equipment 6 from an external air inlet 6-6, and the air pressure sensing part 6-3 is communicated with the auxiliary pipeline connecting device 6-1, the auxiliary pipeline and the main pipeline and can sense the air pressure in the pipeline. The inflow air quantity device 6-4 can adjust the size of the inflow air port through the air pressure in the pipeline sensed by the air pressure sensing part 6-3 so as to adjust the inflow air quantity. The air pressure sensing part 6-3 has two working modes: one is a spring-balanced mode (requiring no power supply), and an electrodynamic-balanced mode (requiring power supply). The first silencing pot 6-2 and the second silencing pot 6-5 can reduce the noise generated by the air flow
When the automatic chair cleaning device is used, when the negative pressure device of the mechanical room is started, the automatic pipeline cleaning device is also started at the same time, the air pressure in the main pipeline is sensed automatically, the inflow amount of the air from the outside is adjusted, and the attraction force of all the chair point positions is kept constant by keeping the air pressure in the pipeline constant. Meanwhile, when the number of the using points is small, the air quantity flowing into the main pipeline from the outside can be increased by the automatic pipeline cleaning equipment, and when the number of the using points is large, the air quantity flowing into the main pipeline from the outside is reduced, so that the air flow in the pipeline is always ensured, the constant air pressure in the pipeline is maintained, and the sucked dirt is completely sent to the negative pressure equipment of the mechanical room. The counter-flow prevention calandria design is added, so that the sewage can be prevented from flowing back to the automatic pipeline cleaning equipment.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. An automatic cleaning system for central exhaust pipes, characterized in that it comprises:
the negative pressure system is arranged in the mechanical room, and the plurality of dental chairs are arranged in the diagnosis and treatment room;
the negative pressure system is communicated with a main pipeline, the plurality of dental chairs for diagnosis and treatment are communicated with the main pipeline through pipelines respectively, the outer end of the main pipeline is communicated with an auxiliary pipeline, and the outer end of the auxiliary pipeline is communicated with an automatic pipeline cleaning device.
2. The automatic cleaning system for center drain pipes according to claim 1, wherein a backflow preventing drain pipe structure is provided between the main pipe and the sub-pipe.
3. The automatic cleaning system for center drain pipes according to claim 1, wherein said automatic cleaning device for pipes is installed in a clinic or a machine room.
4. The automatic cleaning system for central calandria according to claim 1, wherein the automatic cleaning device for pipe is provided with a second silencing pot, the front end of the second silencing pot is provided with an external air inlet, the rear end of the second silencing pot is communicated with an air pressure sensing part through an air inflow device, the rear end of the air pressure sensing part is communicated with a first silencing pot, and the first silencing pot is provided with an auxiliary pipe connecting device.
5. A control method of a central pipe arrangement automatic cleaning system for realizing the central pipe arrangement automatic cleaning system according to any one of claims 1 to 4, characterized in that the control method of the central pipe arrangement automatic cleaning system comprises the following steps:
the automatic pipeline cleaning equipment senses the air pressure in the main pipeline automatically, adjusts the inflow amount of the air from the outside, and keeps the suction force of all the dental chair point positions constant by keeping the air pressure in the pipeline constant.
CN202010693685.8A 2020-07-17 2020-07-17 Automatic cleaning system for central calandria and control method Pending CN111804678A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010693685.8A CN111804678A (en) 2020-07-17 2020-07-17 Automatic cleaning system for central calandria and control method
PCT/CN2021/094779 WO2022012157A1 (en) 2020-07-17 2021-05-20 Automatic cleaning system for central drainage pipeline and control method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010693685.8A CN111804678A (en) 2020-07-17 2020-07-17 Automatic cleaning system for central calandria and control method

Publications (1)

Publication Number Publication Date
CN111804678A true CN111804678A (en) 2020-10-23

Family

ID=72865534

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010693685.8A Pending CN111804678A (en) 2020-07-17 2020-07-17 Automatic cleaning system for central calandria and control method

Country Status (2)

Country Link
CN (1) CN111804678A (en)
WO (1) WO2022012157A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022012157A1 (en) * 2020-07-17 2022-01-20 提技贸易(上海)有限公司 Automatic cleaning system for central drainage pipeline and control method therefor
CN114306681A (en) * 2021-12-25 2022-04-12 提技贸易(上海)有限公司 Automatic pipeline disinfection system and method

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006055428A (en) * 2004-08-20 2006-03-02 Tokyo Giken:Kk Medical central suction system
CN201362508Y (en) * 2009-01-14 2009-12-16 西安信耐机电设备有限公司 Stone coal subpressure pneumatic conveying system
EP2058520B1 (en) * 2007-11-07 2010-07-14 Mil'S Backup vacuum-production installation and corresponding vacuum-production system.
ATE488308T1 (en) * 2003-05-16 2010-12-15 Bht Hygienetechnik Gmbh DEVICE FOR CLEANING AND/OR DISINFECTING LONG HOLLOW BODIES, IN PARTICULAR MEDICAL HOSES AND CATHEDS
CN201870562U (en) * 2010-11-03 2011-06-22 富毅特(上海)环保科技有限公司 Central vacuum sweeping system
CN102177097A (en) * 2008-10-16 2011-09-07 威立雅水处理技术支持公司 Component, method and system of sanitising a water purification apparatus and/or a distribution apparatus
CN204864253U (en) * 2015-08-26 2015-12-16 西安交通大学第一附属医院 Medical integrated form multipurpose negative pressure prevents that container is inhaled to drainage liquid against current
CN207179955U (en) * 2017-09-08 2018-04-03 深圳市万丰装饰设计工程有限公司 A kind of easy cleaning air channel of central air conditioner system
CN108136451A (en) * 2015-10-14 2018-06-08 富路得设备有限公司 Clear up the method and system of pipe-line system
CN108158487A (en) * 2018-01-02 2018-06-15 陈建平 A kind of central dust absorbing system
CN210474931U (en) * 2019-09-10 2020-05-08 上海市针灸经络研究所 Moxa-moxibustion smog discharging equipment that can automatically regulated amount of wind
CN210523339U (en) * 2019-07-08 2020-05-15 所德(厦门)环境工程有限公司 Central cleaning system
CN111174097A (en) * 2020-02-27 2020-05-19 江苏新河农用化工有限公司 Fire retardant system with dredging function and use method thereof
CN111228582A (en) * 2018-11-28 2020-06-05 重庆西山科技股份有限公司 Suction system and air pressure adjusting method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10112411A1 (en) * 2001-03-15 2002-09-19 Gottfried D Funk Control of vacuum pressure supply to the mouth suction installation in a dental practice, such that pressure is constant independent of the number of connections or the relative position of a connection
CN202554156U (en) * 2012-05-08 2012-11-28 沈志辉 Medical negative pressure suction machine
CN203042523U (en) * 2012-12-31 2013-07-10 张遂路 Medical negative-pressure suction machine
CN104225691A (en) * 2013-06-19 2014-12-24 宁波蓝野医疗器械有限公司 Dental suction pressure adaptive control system
CN104146788A (en) * 2014-07-18 2014-11-19 苏州市君威医疗设备有限公司 Intelligent negative pressure control aspirator applied to dental department
CN111804678A (en) * 2020-07-17 2020-10-23 提技贸易(上海)有限公司 Automatic cleaning system for central calandria and control method

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE488308T1 (en) * 2003-05-16 2010-12-15 Bht Hygienetechnik Gmbh DEVICE FOR CLEANING AND/OR DISINFECTING LONG HOLLOW BODIES, IN PARTICULAR MEDICAL HOSES AND CATHEDS
JP2006055428A (en) * 2004-08-20 2006-03-02 Tokyo Giken:Kk Medical central suction system
EP2058520B1 (en) * 2007-11-07 2010-07-14 Mil'S Backup vacuum-production installation and corresponding vacuum-production system.
CN102177097A (en) * 2008-10-16 2011-09-07 威立雅水处理技术支持公司 Component, method and system of sanitising a water purification apparatus and/or a distribution apparatus
CN201362508Y (en) * 2009-01-14 2009-12-16 西安信耐机电设备有限公司 Stone coal subpressure pneumatic conveying system
CN201870562U (en) * 2010-11-03 2011-06-22 富毅特(上海)环保科技有限公司 Central vacuum sweeping system
CN204864253U (en) * 2015-08-26 2015-12-16 西安交通大学第一附属医院 Medical integrated form multipurpose negative pressure prevents that container is inhaled to drainage liquid against current
CN108136451A (en) * 2015-10-14 2018-06-08 富路得设备有限公司 Clear up the method and system of pipe-line system
CN207179955U (en) * 2017-09-08 2018-04-03 深圳市万丰装饰设计工程有限公司 A kind of easy cleaning air channel of central air conditioner system
CN108158487A (en) * 2018-01-02 2018-06-15 陈建平 A kind of central dust absorbing system
CN111228582A (en) * 2018-11-28 2020-06-05 重庆西山科技股份有限公司 Suction system and air pressure adjusting method thereof
CN210523339U (en) * 2019-07-08 2020-05-15 所德(厦门)环境工程有限公司 Central cleaning system
CN210474931U (en) * 2019-09-10 2020-05-08 上海市针灸经络研究所 Moxa-moxibustion smog discharging equipment that can automatically regulated amount of wind
CN111174097A (en) * 2020-02-27 2020-05-19 江苏新河农用化工有限公司 Fire retardant system with dredging function and use method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李伟松: "《医疗器械标准丛书 齿科设备及器械标准解读》", 31 July 2018, 暨南大学出版社 *
聂云超: "《船舶柴油机》", 31 August 2004, 大连理工大学出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022012157A1 (en) * 2020-07-17 2022-01-20 提技贸易(上海)有限公司 Automatic cleaning system for central drainage pipeline and control method therefor
CN114306681A (en) * 2021-12-25 2022-04-12 提技贸易(上海)有限公司 Automatic pipeline disinfection system and method
WO2023116926A1 (en) * 2021-12-25 2023-06-29 提技贸易(上海)有限公司 Automatic pipeline disinfection system and method

Also Published As

Publication number Publication date
WO2022012157A1 (en) 2022-01-20

Similar Documents

Publication Publication Date Title
CN111804678A (en) Automatic cleaning system for central calandria and control method
CN210523339U (en) Central cleaning system
CN115823729A (en) Self-suction type adjusting device of air conditioner and control method
CN213698242U (en) ECMO and CRRT pipeline with current limiter
CN101595783A (en) A kind of water power extrusion fertilizer applicator
CN113926007A (en) Anti-leakage drainage device for general surgical clinical operation
CN212155086U (en) Vacuum pump negative pressure unit parallel pipeline assembly
CN205330944U (en) Electronic intake system of frequency conversion control dentistry
CN207776079U (en) Integrated sewage water lifting device
CN204704964U (en) There is the operating room of malleation and negative pressure translation function
CN107213503A (en) A kind of severe ward air steriliser
CN215573260U (en) Waterproof detecting system of ultrasonic gas meter
WO2023116926A1 (en) Automatic pipeline disinfection system and method
CN210408772U (en) Ear canal washing device
CN104225691A (en) Dental suction pressure adaptive control system
CN214329153U (en) Vacuum collection and discharge device
CN213811006U (en) Air volume adjustable new trend system
CN206176042U (en) Dynamic water supply system of large -traffic velocity of flow of long -range wireless control systemic circulation
CN211488887U (en) Podium dust cleaning device of ideological and political theory teaching
CN211933863U (en) Cleaning system
CN201056761Y (en) Cabinet capable of containing and releasing closet
CN209500459U (en) A kind of nose conduit
CN215780310U (en) Negative pressure suction Y-shaped pipe
CN205205984U (en) Environment -friendly toilet attachment device
CN207395033U (en) A kind of center air cleaning system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20210326

Address after: Room 1612, 939 Jinqiao Road, Pudong New Area, Shanghai 200136

Applicant after: Tiji Trading (Shanghai) Co.,Ltd.

Applicant after: Tiki Trading (Hong Kong) Ltd.

Address before: Room 1612, 939 Jinqiao Road, Pudong New Area, Shanghai, 200120

Applicant before: Tiji Trading (Shanghai) Co.,Ltd.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20201023