CN107999152B - Self-adaptive bidirectional anti-suck-back device - Google Patents
Self-adaptive bidirectional anti-suck-back device Download PDFInfo
- Publication number
- CN107999152B CN107999152B CN201711327118.5A CN201711327118A CN107999152B CN 107999152 B CN107999152 B CN 107999152B CN 201711327118 A CN201711327118 A CN 201711327118A CN 107999152 B CN107999152 B CN 107999152B
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- siphon
- bottle body
- pipe
- suck
- bottle
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 241001411320 Eriogonum inflatum Species 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/56—Labware specially adapted for transferring fluids
- B01L3/567—Valves, taps or stop-cocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F10/00—Siphons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/04—Closures and closing means
- B01L2300/041—Connecting closures to device or container
- B01L2300/042—Caps; Plugs
Abstract
The invention discloses a self-adaptive bidirectional anti-suck-back device which comprises a bottle body, two vent pipes and a siphon pipe, wherein the two vent pipes are respectively connected to an air inlet end and an air outlet end, the siphon pipe is arranged at the bottom of the bottle body, a plug pulled by a floating ball is arranged at an inner pipe opening of the siphon pipe, the floating ball is connected with the bottom of the bottle body through a spring, and moves up and down along with the liquid amount in the bottle body to drive the plug to move so as to control the inner pipe opening of the siphon pipe to be opened or closed. The control method is simple, convenient and easy to realize.
Description
Technical Field
The invention relates to the technical field of mechanical devices, in particular to a self-adaptive bidirectional anti-suck-back device.
Background
In chemical experiments, the back suction of liquid can have adverse effects on the experiments, such as burst of glass instruments, pollution of reaction reagents, and the like, so that certain measures must be taken in the related experiments to prevent the back suction of absorption liquid. The existing anti-suck-back bottle usually adopts a short-in and long-out connection mode, and if a connection error occurs, the anti-suck-back bottle cannot play a role in preventing liquid from being sucked back.
Disclosure of Invention
In view of the above, the self-adaptive bidirectional anti-suck-back device is provided, the air inlet pipe and the air outlet pipe of the anti-suck-back bottle can be connected interchangeably, and the operation method is simpler, more convenient and easy to realize.
The aim of the invention is realized by the following technical scheme:
the utility model provides a two-way anti-suck-back device of self-adaptation, includes bottle, two breather pipes, siphon and floater, two the breather pipe is connected to the inlet end respectively and is given vent to anger the end, the siphon is located the bottle bottom, the inner tube mouth of siphon is equipped with the stopper of floater pulling, the floater pass through the spring with the bottle bottom is connected, the floater is along with the liquid volume in the bottle reciprocates, drives the stopper removes, control the inner tube mouth of siphon is opened or is closed.
Further, a bottle stopper is arranged at the bottle mouth of the bottle body and is provided with a first through hole and a second through hole, and two vent pipes are respectively arranged in a penetrating manner.
Further, one end of the vent pipe is provided with an outer pipe orifice, and the outer pipe orifice of the vent pipe is arranged outside the bottle body and is connected with the air inlet end or the air outlet end; the other end of the vent pipe is provided with an inner pipe orifice, and the inner pipe orifice of the vent pipe is arranged in the bottle body; the part of the vent pipe extending into the bottle body is bent, so that the inner pipe opening is close to the inner side wall of the bottle body, and the inner pipe opening is arranged at the top of the inner side wall of the bottle body.
Further, the siphon is arranged at the bottom of the bottle body, the siphon is provided with an outer pipe orifice, the bottom of the bottle body is provided with a third through hole, and the outer pipe orifice of the siphon is arranged through the third through hole and is tightly attached to the wall of the third through hole.
Further, the siphon pipe is arched, and the highest point of the arch of the siphon pipe is lower than the inner pipe orifices of the two vent pipes.
Further, the inner surface of the bottom of the bottle body is provided with a fixed supporting rod, the top end of the fixed supporting rod is provided with a balance rod, the balance rod rotates around the top end of the fixed supporting rod, and the balance rod and the fixed supporting rod form a lever mechanism.
Further, the siphon is provided with a siphon port, one end of the balance rod is provided with the plug, the plug is in a cone shape and penetrates through the siphon port, the siphon port is freely opened or closed under the drive of the balance rod, and the distance from the siphon port to the bottom of the bottle body is larger than the height of the plug.
Further, the other end of the balance rod is provided with the floating ball, and the floating ball is connected with the bottom of the bottle body through a spring.
Further, one end of the spring is connected with the floating ball, and the other end of the spring is connected with the bottom of the bottle body.
Further, the height of the fixed supporting rod is matched with the natural telescopic length of the spring, so that the plug closes the siphon port under the support of the balance rod.
In the self-adaptive bidirectional anti-suck-back device, two vent pipes are used as an air inlet pipe and an air outlet pipe, the two vent pipes are connected with an air inlet end and an air outlet end, and can be interchangeably connected, no matter how the two vent pipes are connected, the phenomenon of suck-back cannot occur, and when the liquid in the self-adaptive bidirectional anti-suck-back device reaches a certain amount, the liquid can be automatically discharged, so that in theory, the phenomenon that the self-adaptive anti-suck-back bottle is filled with the liquid and the whole self-adaptive anti-suck-back bottle cannot occur. The method is simple and easy to realize.
Drawings
Fig. 1 is a schematic structural diagram of a self-adaptive bidirectional anti-suck-back device according to an embodiment of the present invention.
Detailed Description
The embodiment takes the self-adaptive bidirectional anti-suck-back device as an example, and the invention will be described in detail below with reference to specific embodiments and drawings.
Referring to fig. 1, a first embodiment of the present invention is shown, and is used in an experimental apparatus, and a self-adaptive bidirectional anti-suck-back bottle 100 is provided, which includes a bottle body 10, two breather pipes 20, and a siphon pipe 30, wherein the two breather pipes 20 are respectively connected to an air inlet end and an air outlet end, the siphon pipe 30 is disposed at the bottom of the bottle body 10, the siphon pipe 30 is provided with a second inner pipe orifice 31, the second inner pipe orifice 31 of the siphon pipe 30 is provided with a plug 41 pulled by a floating ball 42, the floating ball 42 is connected with the bottom of the bottle body 10 through a spring 43, and the floating ball 42 moves up and down along with the liquid volume in the bottle body 10 to drive the plug 41 to move, so as to control the second inner pipe orifice 31 of the siphon pipe 30 to be opened or closed.
The two ventilation pipes 20 are used as an air inlet pipe and an air outlet pipe, respectively, which are interchangeably connected to an air inlet end and an air outlet end.
Further, the bottle mouth 11 of the bottle body 10 is provided with a bottle stopper 12, the bottle stopper 12 is provided with a first through hole 121 and a second through hole 122, and the two ventilation pipes 20 are respectively arranged through the first through hole 121 and the second through hole 122 in a penetrating manner and are tightly combined with the hole walls of the first through hole 121 and the second through hole 122. One end of the vent pipe 20 is provided with a first outer pipe orifice 21, and the first outer pipe orifice 21 of the vent pipe 20 is arranged outside the bottle body 10 and is connected with an air inlet end or an air outlet end; the other end of the vent pipe 20 is provided with a first inner pipe orifice 22, and the first inner pipe orifice 22 of the vent pipe 20 is arranged in the bottle body 10; the portion of the vent pipe 20 extending into the bottle 10 is bent, so that the first inner pipe orifice 22 is close to the inner side wall of the bottle 10, and the first inner pipe orifice 22 is arranged at the top of the inner side wall of the bottle 10.
The parts of the two ventilation pipes 20 extending into the bottle body 10 should be as short as possible, so that more space is provided in the bottle body 10 to accommodate the liquid, and the first inner pipe orifices 22 of the two ventilation pipes 20 are close to the inner side wall of the bottle body 10, so that the liquid flows down along the bottle wall to prevent the liquid from splashing.
Further, the siphon pipe 30 is disposed at the bottom of the bottle body 10, the siphon pipe 30 has a second outer pipe orifice 32, a third through hole 44 is disposed at the bottom of the bottle body 10, and the second outer pipe orifice 32 of the siphon pipe 30 is disposed through the third through hole 44 and closely contacts with the wall of the third through hole 44, so as to avoid air leakage. The siphon pipe 30 is arched, and the highest point 33 of the arch of the siphon pipe 30 is lower than the first inner pipe orifices 22 of the two ventilation pipes 20, otherwise, the self-adaptive anti-suck-back bottle cannot discharge the liquid in the bottle, and cannot play a role in anti-suck-back.
Further, a drainage tube 50 is connected to the outside of the third through hole 44 at the bottom of the bottle body 10.
Further, a fixed supporting rod 45 is arranged at the central part of the inner side of the bottom of the bottle body 10, a balance rod 46 is arranged at the top end of the fixed supporting rod 45, the balance rod 46 rotates around the top end of the fixed supporting rod 45, and the balance rod 46 and the fixed supporting rod 45 form a lever mechanism. The siphon tube 30 has a siphon port 31, and the second inner nozzle 31 of the siphon tube 30 is the siphon port 31. One end of the balance rod 46 is provided with the plug 41, the plug 41 is in a cone shape, penetrates through the siphon port 31, and is driven by the balance rod 46 to freely open or block the siphon port 31, and the distance from the siphon port 31 to the bottom of the bottle body 10 is greater than the height of the plug 41. The other end of the balance bar 46 is provided with the floating ball 42, and the floating ball 42 is connected with the bottom of the bottle body 10 through a spring 43.
Further, the height of the fixed support rod 45 is matched with the natural telescopic length of the spring 43, so that the stopper 41 closes the siphon port 31 under the support of the balance rod 46.
The height of the fixed support rod 45 is lower than the height of the siphon port 31, and the length of the spring 43 which naturally stretches is smaller than the height of the fixed support rod 45, so that the stopper 41 closes the siphon port 31 under the action of the spring 43 and the balance rod 46.
When no liquid enters the self-adaptive anti-suck-back bottle 100 or a small amount of liquid enters the self-adaptive anti-suck-back bottle 100, the spring 43 pulls the floating ball 42, the plug 41 blocks the siphon port 31 under the action of the balance rod 46, and the inside of the self-adaptive anti-suck-back bottle 100 is isolated from the outside.
Further, after the liquid level of the liquid entering the self-adaptive anti-suck-back bottle 100 exceeds the height of the floating ball 42, the floating ball 42 rises under the action of buoyancy force, the plug 41 moves down under the action of the balance rod 46, the siphon port 31 of the siphon tube 30 is opened, and the liquid enters the siphon tube 30. When the liquid level exceeds the arched top of the siphon tube 30, the liquid flows out of the adaptive anti-suck-back bottle 100. The liquid level is lowered, the floating ball 42 returns to the initial position under the action of the spring 43, and the stopper 41 is caused to block the siphon port 31 of the siphon tube 30 under the action of the balance rod 46.
The spring 43 controls the position of the floating ball 42, thereby controlling the moving track of the stopper 41 so as not to deviate the stopper 41 and influence the opening and closing of the siphon tube 30.
The working process of the adaptive bi-directional anti-suck-back device 100 is as follows:
s01, during normal operation, no liquid enters the self-adaptive bidirectional anti-suck-back device 100, the spring 43 pulls the floating ball 42, the plug 41 blocks the siphon port 31 of the siphon pipe 30, and the inside and the outside of the self-adaptive bidirectional anti-suck-back device 100 are isolated;
s02, liquid enters the self-adaptive bidirectional anti-suck-back device 100, the liquid level is lower than the siphon port 31 of the siphon pipe 30, and the self-adaptive bidirectional anti-suck-back device 100 works normally;
s03, after the liquid level submerges the floating ball 42, the floating ball 42 moves upwards under the action of the liquid buoyancy, the balance rod 46 inclines and rotates around the top end of the fixed support rod 45 to enable the plug 41 to move downwards, the siphon port 31 of the siphon pipe 30 is opened, and liquid enters the siphon pipe 30;
s04, the liquid level exceeds the arched highest point 33 of the siphon pipe 30, and under the action of siphon phenomenon, liquid is discharged out of the self-adaptive bidirectional anti-suck-back device 100 through the siphon pipe 30;
s05, the amount of liquid in the self-adaptive bidirectional anti-suck-back device 100 is reduced, after the liquid level is lowered to the position of the floating ball 42, the height of the floating ball 42 is lowered, and the plug 41 blocks the siphon port 31 of the siphon pipe 30 under the action of the balance rod 46;
if the liquid surface continues to rise after the siphon port 31 of the siphon tube 30 is blocked at S06, the rising and falling of the liquid surface are repeated at S03 to S05, and no air leakage occurs.
In the second embodiment of the present invention, the oil tank is used for the purpose of inconvenient observation of the height of the liquid in the tank, and the anti-overflow device 100 for the oil tank is provided, and the height of the spring 43 is adjusted to change the liquid amount stored in the device 100. The air inlet end can be used for injecting liquid, when the liquid level of the injected liquid submerges the floating ball 42, under the buoyancy action of the floating ball 42, the balance rod 46 rotates around the top end of the fixed supporting rod 45, so that the plug 41 opens the siphon port 31, the liquid flows into the drainage tube 50 through the siphon tube 30, when the pipe orifice of the drainage tube 50 detects that the liquid flows out, the injection end is controlled to be closed, the liquid is stopped from being injected into the device 100, and the effect of preventing the liquid in the device 100 from overflowing from the injection end is achieved. Other substantially identical structures are not described in detail herein.
In the above-mentioned self-adaptive bi-directional anti-suck-back device 100, the two ventilation pipes 20 are connected to the air inlet end and the air outlet end, and may be also connected interchangeably, so that no suck-back phenomenon occurs in any connection, and when the liquid in the self-adaptive bi-directional anti-suck-back device 100 reaches a certain amount, the liquid will be automatically discharged, so that in theory, the whole self-adaptive bi-directional anti-suck-back device 100 will not be filled with the liquid, and the suck-back phenomenon will occur. The device can also be used for an oil tank which is inconvenient to observe the height of liquid in the tank body, and plays a role in preventing the liquid in the device from overflowing from the injection end. The method is simple and easy to realize.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention, but various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The self-adaptive bidirectional anti-suck-back device is characterized by comprising a bottle body, two vent pipes, a siphon pipe and a floating ball, wherein the two vent pipes are respectively connected to an air inlet end and an air outlet end, the siphon pipe is arranged at the bottom of the bottle body, a plug pulled by the floating ball is arranged at the inner pipe opening of the siphon pipe, the floating ball is connected with the bottom of the bottle body through a spring, and moves up and down along with the liquid amount in the bottle body to drive the plug to move so as to control the inner pipe opening of the siphon pipe to be opened or closed; the bottle mouth of the bottle body is provided with a bottle stopper, the bottle stopper is provided with a first through hole and a second through hole, and two vent pipes are respectively penetrated; one end of the vent pipe is provided with an outer pipe orifice, and the outer pipe orifice of the vent pipe is arranged outside the bottle body and is connected with the air inlet end or the air outlet end; the other end of the vent pipe is provided with an inner pipe orifice, and the inner pipe orifice of the vent pipe is arranged in the bottle body; the part of the vent pipe extending into the bottle body is bent, so that the inner pipe openings are close to the inner side wall of the bottle body, and the inner pipe openings of the two vent pipes are arranged at the top of the inner side wall of the bottle body; the siphon pipe is arched, the arched sections of the siphon pipe are all contained in the bottle body, and the highest point of the arch of the siphon pipe is lower than the inner pipe openings of the two vent pipes; the siphon is arranged at the bottom of the bottle body, the siphon is provided with an outer pipe orifice, the bottom of the bottle body is provided with a third through hole, and the outer pipe orifice of the siphon is arranged through the third through hole and is tightly attached to the wall of the third through hole.
2. The adaptive bi-directional anti-suck-back device according to claim 1, wherein a fixed supporting rod is arranged on the inner surface of the bottom of the bottle body, a balance rod is arranged at the top end of the fixed supporting rod, the balance rod rotates around the top end of the fixed supporting rod, and the balance rod and the fixed supporting rod form a lever mechanism.
3. The self-adaptive bidirectional reverse suction prevention device according to claim 2, wherein the siphon pipe is provided with a siphon port, one end of the balance rod is provided with the plug, the plug is in a cone shape, penetrates through the siphon port, and is driven by the balance rod to freely open or close the siphon port, and the distance from the siphon port to the bottom of the bottle body is larger than the height of the plug.
4. The adaptive bi-directional anti-suck-back device according to claim 3, wherein the other end of the balance bar is provided with the floating ball, and the floating ball is connected with the bottom of the bottle body through a spring.
5. The adaptive bi-directional anti-suck-back device of claim 4, wherein one end of the spring is connected to the floating ball and the other end of the spring is connected to the bottom of the bottle.
6. The adaptive bi-directional anti-suck-back device of claim 5, wherein the height of the fixed support rod cooperates with the natural telescoping length of the spring to cause the plug to close the siphon port under the support of the balance rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327118.5A CN107999152B (en) | 2017-12-13 | 2017-12-13 | Self-adaptive bidirectional anti-suck-back device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327118.5A CN107999152B (en) | 2017-12-13 | 2017-12-13 | Self-adaptive bidirectional anti-suck-back device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107999152A CN107999152A (en) | 2018-05-08 |
| CN107999152B true CN107999152B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711327118.5A Active CN107999152B (en) | 2017-12-13 | 2017-12-13 | Self-adaptive bidirectional anti-suck-back device |
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| Country | Link |
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| CN (1) | CN107999152B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862575B (en) * | 2018-07-13 | 2021-05-04 | 河南科技大学 | Unpowered sewage anaerobic digestion regular water distribution system |
| CN111828405A (en) * | 2020-07-07 | 2020-10-27 | 太仓景宏智能科技有限公司 | Water diversion mechanism for agricultural irrigation |
| CN111820106B (en) * | 2020-07-07 | 2022-04-01 | 太仓景宏智能科技有限公司 | Device for agricultural irrigation |
| CN113775575B (en) * | 2021-09-24 | 2023-03-10 | 山东水总有限公司 | Siphon type water diversion system and water diversion method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053073U (en) * | 1989-07-28 | 1990-02-21 | 张景才 | Double-purpose cork for thermos |
| CN1049897A (en) * | 1989-08-27 | 1991-03-13 | 赵赤东 | Automatically control the method for siphonic process |
| CN2321990Y (en) * | 1998-04-01 | 1999-06-02 | 胡日进 | Water inlet, outlet bidirectional valve |
| CN2431321Y (en) * | 2000-07-21 | 2001-05-23 | 宫如利 | Pressure reduced controllable cistern water pump |
| CN203279603U (en) * | 2013-04-20 | 2013-11-13 | 辽宁石油化工大学 | Quantified instilling flower watering device |
| CN203908813U (en) * | 2014-05-04 | 2014-10-29 | 上海海洋大学 | Clear liquid suction filtration device for phytoplankton water sample |
| CN104632727A (en) * | 2015-01-30 | 2015-05-20 | 天津大学 | Siphon type draining device |
| CN106567867A (en) * | 2016-10-20 | 2017-04-19 | 王海燕 | Design and production manufacturing method of variable cross-section (diameter) double-siphon-tube device |
| CN207805641U (en) * | 2017-12-13 | 2018-09-04 | 深圳中检联检测有限公司 | Adaptive bidirectional falling-proof inhales bottle |
-
2017
- 2017-12-13 CN CN201711327118.5A patent/CN107999152B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053073U (en) * | 1989-07-28 | 1990-02-21 | 张景才 | Double-purpose cork for thermos |
| CN1049897A (en) * | 1989-08-27 | 1991-03-13 | 赵赤东 | Automatically control the method for siphonic process |
| CN2321990Y (en) * | 1998-04-01 | 1999-06-02 | 胡日进 | Water inlet, outlet bidirectional valve |
| CN2431321Y (en) * | 2000-07-21 | 2001-05-23 | 宫如利 | Pressure reduced controllable cistern water pump |
| CN203279603U (en) * | 2013-04-20 | 2013-11-13 | 辽宁石油化工大学 | Quantified instilling flower watering device |
| CN203908813U (en) * | 2014-05-04 | 2014-10-29 | 上海海洋大学 | Clear liquid suction filtration device for phytoplankton water sample |
| CN104632727A (en) * | 2015-01-30 | 2015-05-20 | 天津大学 | Siphon type draining device |
| CN106567867A (en) * | 2016-10-20 | 2017-04-19 | 王海燕 | Design and production manufacturing method of variable cross-section (diameter) double-siphon-tube device |
| CN207805641U (en) * | 2017-12-13 | 2018-09-04 | 深圳中检联检测有限公司 | Adaptive bidirectional falling-proof inhales bottle |
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| CN107999152A (en) | 2018-05-08 |
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Address after: 518000 1-4, 101 Park, No. 350 of the big cloth Road, Guancheng street, Guanhu street, Longhua, Shenzhen, Guangdong Applicant after: SHENZHEN SINO ASSESSMENT GROUP CO.,LTD. Address before: 518000 3/F, 26 1/F and 3/F, 25 Zhiheng Strategic Emerging Industrial Park, Nantouguan Road, Nanshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN SINO ASSESSMENT GROUP CO.,LTD. |
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