CN107991450B - Water quality detection device - Google Patents
Water quality detection device Download PDFInfo
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- CN107991450B CN107991450B CN201711195134.3A CN201711195134A CN107991450B CN 107991450 B CN107991450 B CN 107991450B CN 201711195134 A CN201711195134 A CN 201711195134A CN 107991450 B CN107991450 B CN 107991450B
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- Prior art keywords
- water
- pipeline
- valve core
- inner tube
- connector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
Abstract
The invention discloses a water quality detection device, which comprises a detection water tank and a detection element arranged on the upper side of the detection water tank, wherein the upper end of the detection water tank is open, the water filling device comprises a water changing joint arranged on the bottom surface of the detection water tank and a connecting seat matched with the water changing joint for use, the water changing joint comprises a water inlet joint and a water discharging joint, the water discharging joint comprises a funnel-shaped upper section and a straight tubular lower section, and the water inlet joint comprises an upper connecting joint matched with the upper section of the water discharging joint in shape and a lower connecting pipe connected in the lower section in a sliding manner. According to the invention, the detection water tank is not required to be flushed by a worker specially, and the detection water tank can be flushed automatically in the water changing process.
Description
Technical Field
The invention relates to a water quality detection device.
Background
After the water quality detection department finishes sampling water quality, various detection processes are frequently required to be carried out on the water quality, including processes of adding various reagents, stirring, standing and the like, and whether components which can chemically react with the reagents exist in the water quality is observed after the reagents are added, and the stirring and standing processes are used for observing whether physical substances which can be separated out exist in the water quality, the processes are carried out in a water tank, and the water tank is required to be used for multiple times in different water quality detection processes, so that the water tank is required to be washed in the different water quality detection processes, water quality residue in the previous detection process is avoided, influence on the next test is avoided, the structure of the water tank mainly washes the bottom of the water tank, but the washing is inconvenient because more detection instruments are arranged on the water tank.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a water quality detection device convenient for flushing a water tank.
In order to solve the problems, the invention comprises a detection water tank and a detection element arranged on the upper side of the detection water tank, wherein the upper end of the detection water tank is open, the detection water tank also comprises a water filling device, the water filling device comprises a water changing connector arranged on the bottom surface of the detection water tank and a connecting seat matched with the water changing connector for use, the water changing connector comprises a water inlet connector and a water discharging connector, the water discharging connector comprises a funnel-shaped upper section and a straight tubular lower section, the water inlet connector comprises an upper connector matched with the upper section of the water discharging connector in shape and a lower connecting pipe connected in the lower section in a sliding manner, a gap is formed between the lower connecting pipe and the lower section, a main pipeline communicated with the lower connecting pipe, a water filling pipeline communicated with the main pipeline and a spraying pipeline communicated with the main pipeline are arranged in the upper connector, and a water outlet of the water filling pipeline is positioned on the top, the water outlet of the spraying pipeline is positioned on the side surface of the upper connector, the communication port of the water filling pipeline and the main pipeline and the communication port of the spraying pipeline and the main pipeline are positioned on the same plane, a valve core is movably arranged in the main pipeline of the upper connector, the valve core comprises a main valve core pipeline and a branch valve core pipeline, when the valve core moves in the main pipeline, the branch valve core pipeline has three states of being communicated with the spraying pipeline, being communicated with the water filling pipeline and being not communicated with the spraying pipeline and the water filling pipeline, a circle of toothed belt is arranged on the outer surface of the valve core, a shifting sheet is hinged on the outer side surface of the upper connector, a torsion spring is arranged between the shifting piece and the upper connector, a rack is connected on the shifting piece, the rack is meshed and connected with a toothed belt on the valve core, when the torsion spring is in a natural state, the poking sheet and the side surface of the upper connector form a certain included angle; the connecting seat include inner tube and outer tube, the inner tube be located the outer tube, the inner tube include first inner tube and second inner tube, first inner tube slide through the support and set up in the outer tube, the fixed setting of second inner tube in the outer tube, first inner tube and second inner tube all with be provided with the clearance between the outer tube, the upside that first inner tube is located the second inner tube and communicate with the second inner tube, the support passes through threaded connection with first inner tube, support and outer tube rotation are connected, the lateral wall of outer tube on rotate and be connected with the worm, the surface of support on be provided with the worm wheel of being connected with the worm, the worm be connected with drive arrangement, the intraductal spacing pipe of fixedly connected with that still goes back in the first inner tube.
In order to facilitate the control of the movement of the valve core, an upper limiting step and a lower limiting step for limiting the valve core are arranged in the main pipeline of the upper connector, when the upper part of the valve core is propped against the upper limiting step and the torsion spring is in a natural state, the branch valve core pipeline is communicated with the spraying pipeline, and when the upper part of the valve core is propped against the upper limiting step and the shifting sheet is completely attached to the outer surface of the upper connector, the branch valve core pipeline is communicated with the water filling pipeline; when the lower part of the valve core is propped against the lower limiting step, the branch valve core pipeline is not communicated with the water filling pipeline and the spraying pipeline in the rotating process of the valve core.
In order to facilitate the communication between the branch valve core pipelines and the water charging pipelines or the spraying pipelines, the spraying pipelines and the water charging pipelines of the invention both comprise a plurality of pipelines, the number of the spraying pipelines is the same as that of the water charging pipelines, the water inlets of the spraying pipelines and the water inlets of the water charging pipelines are distributed at intervals along the circumferential direction of the main pipeline, the included angle between the water inlet of each spraying pipeline and the water inlets of the adjacent water charging pipelines in the same rotation direction is the same, and the number of the branch valve core pipelines is the same as that of the water charging pipelines.
In order to facilitate the shifting piece to easily rotate in a manner of being pressed by the inner wall of the drainage connector, one end of the shifting piece is hinged with one end of the upper connector, when the torsion spring is in a natural state, the other end of the shifting piece inclines downwards, the shifting piece is connected with the rack through a connecting rod, one end of the connecting rod is hinged on the shifting piece, and the other end of the connecting rod is hinged on the end face of the rack.
In order to facilitate the spraying pipeline to wash the bottom of the detection water tank, the bottom of the detection water tank is a horizontal plane.
In order to facilitate the water flow to flow out of the detection water tank, the bottom of the detection water tank is an inclined plane with the middle protruding outwards.
In order to facilitate the detection of water quality, the detection element comprises a reagent adding device, a stirring device and a water quality testing element, wherein the detection elements are all arranged at the upper part of a detection water tank.
The invention has the beneficial effects that: the water quality detection device of the invention is provided with more detection elements for detecting water quality on the upper side of the detection water tank, and in the water quality detection device, the volume of the detection water tank is generally larger and is inconvenient to move, so that water changing on the upper side or moving the water tank for changing water is troublesome, and the water tank is flushed for many times when each water quality detection is finished, so as to avoid the influence of the last residual on the last water quality detection. The water changing joint of the detection water tank is arranged at the bottom of the detection water tank, water is changed by being connected with the special connecting seat, and the water discharging, the flushing and the water filling can be sequentially carried out, so that the influence of the detection results of the front and the back two times is avoided. According to the invention, the bottom of the detection water tank is not required to be flushed by a worker, and the detection water tank can be automatically flushed in the water changing process.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a test water tank of the present invention;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
FIG. 4 is a schematic structural view of the supporting frame;
FIG. 5 is a schematic view of the connecting seat;
FIG. 6 is a schematic view showing the connection between the water changing joint and the connection seat in the drainage state;
FIG. 7 is an enlarged view of the water inlet joint in the state of FIG. 6;
FIG. 8 is a schematic view of the water changing joint and the connecting seat in a water filling state;
FIG. 9 is an enlarged schematic view at B of FIG. 8;
FIG. 10 is an enlarged partial cross-sectional view of the valve cartridge;
FIG. 11 is an enlarged front view of the valve cartridge;
FIG. 12 is a schematic cross-sectional view of D-D of FIG. 7 (without the valve cartridge);
FIG. 13 is a schematic cross-sectional view of C-C in FIG. 5.
Wherein: 1. the water-saving type water-saving valve comprises a detection water tank, 2, a drainage connector, 3, a water inlet connector, 4, an upper connector, 5, a valve core, 6, a rack, 7, a shifting piece, 8, a lower connecting pipe, 9, a support frame, 10, a connecting seat, 11, a limiting pipe, 12, a first inner pipe, 13, a worm, 14, a flexible telescopic pipe, 15, a second inner pipe, 16, an outer pipe, 1-1, a detection element, 4-1, a water filling pipeline, 4-2, a spraying pipeline, 5-1, a branch valve core pipeline, 5-2, a toothed belt, 5-3, a main valve core pipeline, 9-1, a first support frame, 9-2 and a second support frame.
Detailed Description
The water quality detection device shown in fig. 1 comprises a detection water tank 1 and a detection element 1-1 arranged on the upper side of the detection water tank, wherein the upper end of the detection water tank 1 is open, the detection element 1-1 comprises a reagent adding device, a stirring device and a water quality testing element, the reagent adding device is used for quantitatively adding an experimental reagent into the detection water tank 1, the stirring device is used for stirring an aqueous solution in the detection water tank, the water quality testing element is used for detecting a test result, the detection element is arranged on the upper portion of the detection water tank 1, and the bottom of the detection water tank 1 can be arranged into a plane and also can be arranged into an inclined plane which protrudes outwards.
The water quality detection device of this embodiment further includes a water filling device, as shown in fig. 8, the water filling device includes a water changing joint installed on the bottom surface of the detection water tank 1 and a connection seat 10 used in cooperation with the water changing joint, the water changing joint includes a water inlet joint 3 and a water outlet joint 2, the water outlet joint 2 includes a funnel-shaped upper section and a straight tubular lower section, as shown in fig. 9-11, the water inlet joint 3 includes an upper connection head 4 matched with the upper section of the water outlet joint 2 and a lower connection pipe 8 connected in the lower section in a sliding manner through a support frame 9, as shown in fig. 4, the support frame 9 is provided with a through hole for allowing water to pass through, the upper connection head 4 can be arranged in an inverted round table shape or an inverted frustum shape, the upper section of the water outlet joint 2 is matched with the upper connection head 4 in shape, that is when the upper connection head 4 is completely located in the upper section, the outer surface of the upper connector 4 is completely contacted with the inner surface of the upper section of the drainage connector 2, a gap is formed between the lower connecting pipe 8 and the lower section, as shown in fig. 12, a main pipeline communicated with the lower connecting pipe 8, a water filling pipeline 4-1 and a spraying pipeline 4-2 communicated with the main pipeline are arranged in the upper connector 4, the water outlet of the water filling pipeline 4-1 is positioned on the top surface of the upper connector 4, the water outlet of the spraying pipeline 4-2 is positioned on the side surface of the upper connector 4, the communication port of the water filling pipeline 4-1 and the main pipeline and the communication port of the spraying pipeline 4-2 and the main pipeline are positioned on the same plane, namely, the water inlet of the water filling pipeline 4-1 and the water inlet of the spraying pipeline 4-2 are positioned on the same horizontal plane, a valve core 5 is also movably arranged in the main pipeline of the upper connector 4, namely, the valve core 5 can slide up and down in the main, the valve core 5 comprises a main valve core pipeline 5-3 and a branch valve core pipeline 5-1, an upper limiting step and a lower limiting step for limiting the valve core 5 are arranged in the main pipeline of the upper connector 4, and when the lower part of the valve core 5 is propped against the lower limiting step, the branch valve core pipeline 5-1 is not communicated with the water filling pipeline 4-1 and the spraying pipeline 4-2 in the rotating process of the valve core 5. The outer surface of the valve core 5 is provided with a circle of toothed belts 5-2, the outer surface of the upper connector 4 is hinged with a shifting piece 7, a torsion spring is arranged between the shifting piece 7 and the upper connector 4, one end of the shifting piece 7 is hinged with one end of the upper connector 4, the shifting piece 7 is connected with a rack 6 through a connecting rod, one end of the connecting rod is hinged on the shifting piece 7, the other end of the connecting rod is hinged on the end surface of the rack 6, the rack 6 is meshed with the toothed belts 5-2 on the valve core 5, when the upper part of the valve core 5 is propped on the upper limit step and the torsion spring is in a natural state, the shifting piece 7 inclines outwards, the branch valve core pipeline 5-1 is communicated with the spraying pipeline 4-2, when the upper part of the valve core 5 is propped on the upper limit step and the shifting piece is completely attached to the outer surface of the upper, the branch valve core pipeline 5-1 is communicated with the water filling pipeline 4-1; as shown in fig. 5 and 13, the connecting seat 10 includes an inner tube and an outer tube 16, the inner tube is located in the outer tube 16, the inner tube includes a first inner tube 12 and a second inner tube 15, the first inner tube 12 is slidably disposed in the outer tube 16 by a first support 9-1, the second inner tube 15 is fixedly disposed in the outer tube 16 by a second support 9-2, in order to facilitate the communication between the first inner tube 12 and the second inner tube 15, a flexible extension tube 14 may be disposed between the first inner tube 12 and the second inner tube 15, or a guide tube may be fixed in the second inner tube 15, the first inner tube 12 is slidably connected with the guide tube, and the outer diameter of the guide tube is the same as the inner diameter of the first inner tube 12, the first inner tube 12 and the second inner tube 15 are both disposed with the outer tube 16, the first inner tube 12 is located on the upper side of the second inner tube 15, the first support 9-1 is connected with the first inner tube 12 by a screw thread, the first support frame 9-1 is rotatably connected with an outer tube 16, a worm 13 is rotatably connected to the side wall of the outer tube 16, a worm wheel connected with the worm 13 is arranged on the outer surface of the first support frame 9-1, the worm 13 is connected with a driving device, the driving device can be a stepping motor or a rocker convenient for manual operation, and a limiting tube 11 is fixedly connected in the first inner tube 12.
The spraying pipelines 4-2 and the water filling pipelines 4-1 described in this embodiment both include a plurality of spraying pipelines 4-2, the number of the spraying pipelines 4-2 is the same as the number of the water filling pipelines 4-1, the water inlets of the spraying pipelines 4-2 and the water inlets of the water filling pipelines 4-1 are distributed at intervals along the circumferential direction of the main pipeline, the included angle between the water inlet of each spraying pipeline 4-2 and the water inlet of the adjacent water filling pipeline 4-1 in the same rotation direction is the same, and the number of the branch valve core pipelines 5-1 is the same as the number of the water filling pipelines 4-1.
The working principle is as follows: as shown in fig. 2, when the water changing joint is not connected to the connection seat 10, the outer wall of the upper connection head 4 is attached to the inner wall of the upper section of the water discharging joint 2, the valve core 5 is located at the lower limit position in the main pipeline, the branch valve core pipeline 5-1 is not communicated with the water filling pipeline 4-1 and the spraying pipeline 4-2, and water in the detection water tank 1 cannot leak out of the spraying pipeline 4-2. When water needs to be changed, the water changing process is divided into three steps: a water drainage step, a flushing step and a water replenishing step. (1) A water drainage step: as shown in fig. 6-8, when the connection seat 10 is connected to a water changing connector, the limiting pipe 11 pushes the valve core 5 to slide from the lower limit position to the upper limit position, the first inner pipe 12 is in the upper limit position state, the first inner pipe 12 pushes the water inlet connector 3 to slide upwards along the water discharging connector 2, the upper connector 4 is not in contact with the upper section of the water discharging connector 2, the shifting piece 7 inclines outwards from the state of being attached to the upper connector 4, the shifting piece 7 pulls the valve core 5 to rotate by a certain angle through the rack 6, the branch valve core pipeline 5-1 on the valve core 5 is communicated with the spraying pipeline 4-2 of the upper connector 4, and wastewater in the detection water tank 1 flows away through the gap between the water discharging connector 2 and the water inlet connector 3. (2) A washing step: after the wastewater in the water tank 1 to be detected is drained completely, a water pump connected with the inner pipe is started, clear water sequentially passes through the second inner pipe 15, the first inner pipe 12, the lower connecting pipe 8, the main valve core pipeline 5-3, the branch valve core pipeline 5-1 and the spraying pipeline 4-2 to enter the detection water tank 1, the water outlet of the spraying pipeline 4-2 is higher than the bottom surface of the detection water tank 1, water flows away from a gap between the water inlet connector 3 and the water drainage connector 2 after washing the bottom of the detection water tank 1, and washing time can be set. (3) Water replenishing step: after the washing step is finished, the power device drives the worm 13 to rotate, the worm 13 drives the worm wheel to rotate, the worm wheel rotates to enable the first inner pipe 12 to descend to a lower limit position, the water inlet connector 3 also descends along the water discharge connector 2, the outer surface of the upper connector 4 is completely attached to the upper section of the water discharge connector 2, the shifting sheet 7 is pressed, the valve core 5 is driven by the rack 6 to rotate by a certain angle, the branch valve core pipeline 5-1 of the valve core 5 is switched to be communicated with the water filling pipeline 4-1 from the state of being communicated with the water spraying pipeline 4-2, the water pump is started, clean water sequentially passes through the second inner pipe 15, the first inner pipe 12, the lower connecting pipe 8, the main valve core pipeline 5-3, the branch valve core pipeline 5-1 and the water filling pipeline 4-1 and enters the detection water tank 1 until a set water amount is reached, the connecting seat 10 and the water changing, is not communicated with the water filling pipeline 4-1 and the spraying pipeline 4-2, and the water changing process is finished.
Claims (7)
1. The utility model provides a water quality testing device, is including detecting the water tank and setting up the detecting element who detects the water tank upside, the upper end of detecting the water tank uncovered, its characterized in that: the water-changing device comprises a water-changing connector arranged on the bottom surface of the detection water tank and a connecting seat matched with the water-changing connector for use, the water-changing connector comprises a water inlet connector and a water drainage connector, the water drainage connector comprises a funnel-shaped upper section and a straight tubular lower section, the water inlet connector comprises an upper connector matched with the upper section of the water drainage connector in shape and a lower connecting pipe slidably connected in the lower section, a gap is formed between the lower connecting pipe and the lower section, a main pipeline communicated with the lower connecting pipe, a water-filling pipeline communicated with the main pipeline and a spraying pipeline communicated with the main pipeline are arranged in the upper connector, a water outlet of the water-filling pipeline is positioned on the top surface of the upper connector, a water outlet of the spraying pipeline is positioned on the side surface of the upper connector, and a communication port of the water-filling pipeline and the main pipeline and a communication port of the spraying pipeline and the main pipeline are positioned on the same plane, a valve core is also movably arranged in the main pipeline of the upper connector, the valve core comprises a main valve core pipeline and a branch valve core pipeline, when the valve core moves in the main pipeline, the branch valve core pipeline has three states of being communicated with the spraying pipeline, being communicated with the water filling pipeline and not being communicated with the spraying pipeline and the water filling pipeline, a circle of toothed belt is arranged on the outer surface of the valve core, a shifting piece is hinged to the outer side surface of the upper connector, a torsion spring is arranged between the shifting piece and the upper connector, a rack is connected to the shifting piece, the rack is meshed with the toothed belt on the valve core, and when the torsion spring is in a natural state, a certain included angle is formed between the shifting piece and the side surface of the upper connector; the connecting seat include inner tube and outer tube, the inner tube be located the outer tube, the inner tube include first inner tube and second inner tube, first inner tube slide through the support and set up in the outer tube, the fixed setting of second inner tube in the outer tube, first inner tube and second inner tube all with be provided with the clearance between the outer tube, the upside that first inner tube is located the second inner tube and communicate with the second inner tube, the support passes through threaded connection with first inner tube, support and outer tube rotation are connected, the lateral wall of outer tube on rotate and be connected with the worm, the surface of support on be provided with the worm wheel of being connected with the worm, the worm be connected with drive arrangement, the intraductal spacing pipe of fixedly connected with that still goes back in the first inner tube.
2. The water quality detecting apparatus according to claim 1, characterized in that: the main pipeline of the upper connector is internally provided with an upper limiting step and a lower limiting step for limiting the valve core, when the upper part of the valve core is propped on the upper limiting step and the torsion spring is in a natural state, the branch valve core pipeline is communicated with the spraying pipeline, and when the upper part of the valve core is propped on the upper limiting step and the shifting sheet is completely attached to the outer surface of the upper connector, the branch valve core pipeline is communicated with the water filling pipeline; when the lower part of the valve core is propped against the lower limiting step, the branch valve core pipeline is not communicated with the water filling pipeline and the spraying pipeline in the rotating process of the valve core.
3. The water quality detecting apparatus according to claim 1, characterized in that: the spraying pipelines and the water filling pipelines comprise a plurality of spraying pipelines and a plurality of water filling pipelines, the number of the spraying pipelines is the same as that of the water filling pipelines, the water inlets of the spraying pipelines and the water inlets of the water filling pipelines are distributed at intervals along the circumferential direction of the main pipeline, the included angle between each spraying pipeline water inlet and the water inlets of the adjacent water filling pipelines in the same rotating direction is the same, and the number of the branch valve core pipelines is the same as that of the water filling pipelines.
4. A water quality detecting apparatus according to any one of claims 1 to 3, characterized in that: one end of the shifting piece is hinged with one end of the upper connector, when the torsion spring is in a natural state, the other end of the shifting piece inclines downwards, the shifting piece is connected with the rack through the connecting rod, one end of the connecting rod is hinged on the shifting piece, and the other end of the connecting rod is hinged on the end face of the rack.
5. The water quality detecting apparatus according to claim 4, wherein: the bottom of the detection water tank is a horizontal plane.
6. The water quality detecting apparatus according to claim 4, wherein: the bottom of the detection water tank is an inclined plane with the middle protruding outwards.
7. The water quality detecting apparatus according to claim 5, wherein: the detection element comprises a reagent adding device, a stirring device and a water quality testing element, and the detection element is arranged at the upper part of the detection water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711195134.3A CN107991450B (en) | 2017-11-24 | 2017-11-24 | Water quality detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711195134.3A CN107991450B (en) | 2017-11-24 | 2017-11-24 | Water quality detection device |
Publications (2)
| Publication Number | Publication Date |
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| CN107991450A CN107991450A (en) | 2018-05-04 |
| CN107991450B true CN107991450B (en) | 2020-06-30 |
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| CN201711195134.3A Active CN107991450B (en) | 2017-11-24 | 2017-11-24 | Water quality detection device |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030227387A1 (en) * | 2002-05-14 | 2003-12-11 | Royce Kimberlain | Residential appliance with integrated water monitoring system |
| KR100823826B1 (en) * | 2007-04-02 | 2008-04-21 | 삼성토탈 주식회사 | Automatic analytical tool for titanium concentration analysis of olefin calaysts |
| CN101430312B (en) * | 2008-12-01 | 2012-06-13 | 聚光科技(杭州)股份有限公司 | Water quality on-line detection method and system |
| CN201803874U (en) * | 2010-05-06 | 2011-04-20 | 杭州浩腾智能科技开发有限公司 | Water sample pretreating and demultiplexing device |
| CN102500148A (en) * | 2011-11-30 | 2012-06-20 | 江苏南极机械有限责任公司 | Self-cleaning mechanical filter |
| CN205958562U (en) * | 2016-06-12 | 2017-02-15 | 深圳市清时捷科技有限公司 | Online water quality analyzer ware |
| CN206002342U (en) * | 2016-08-24 | 2017-03-08 | 合肥莱瑞科技有限公司 | A kind of water quality harvester with sensor cleaning function |
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Effective date of registration: 20200529 Address after: 066605 west side of Changle Road, village 4, liutaizhuang Town, Changli County, Qinhuangdao City, Hebei Province Applicant after: HEBEI HENGFENG DETECTION TECHNOLOGY SERVICE Co.,Ltd. Address before: 250000 No. 116 Wuyingshan Middle Road, Tianqiao District, Jinan City, Shandong Province 104-4 Applicant before: JINAN BISHENG INFORMATION TECHNOLOGY Co.,Ltd. |
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