JPH03242239A - Fluid distributor - Google Patents
Fluid distributorInfo
- Publication number
- JPH03242239A JPH03242239A JP3818890A JP3818890A JPH03242239A JP H03242239 A JPH03242239 A JP H03242239A JP 3818890 A JP3818890 A JP 3818890A JP 3818890 A JP3818890 A JP 3818890A JP H03242239 A JPH03242239 A JP H03242239A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- fluid
- casing
- rotor
- opening
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 63
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims description 32
- 239000007788 liquid Substances 0.000 description 15
- 238000011109 contamination Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、流体を同一の流路を経て多数の受入部に選択
的に順次分配する装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for selectively and sequentially distributing a fluid to a plurality of receiving portions via the same flow path.
例えば、タンク、槽内の流体を多数の受入部に払出１分
配する場合、従来はそれぞれを配管接続するかあるいは
多数の受入部をタンク、槽の近傍に移動して配管を介し
て行うか又は人手作業で払出・分配する方法が行われて
いた。更に、前記した配管接続にしても一種の流体をｎ
個の受入部に払出・分配する場合、配管数はｎ本必要で
、その敷設コスト、保全管理、土地のを効利用等を考え
ると改善すべき多くの事項があった。とりわけ、近時需
要の多様化に伴い多品種少量生産における将来の望まし
い生産方式として移動槽式回分生産方式が種々論議され
ているが、前記の生産方式において、多数の移動槽に多
数の原料、副原料を投入する場合、その都度配管接続し
なければならず、その時間的ロスは大きく、またコンタ
ミネーションの心配もあって、従来より効率のよい原料
分配手段が望まれていた。For example, when dispensing and distributing the fluid in a tank or tank to multiple receiving sections, conventional methods have been to connect each of them with piping, or to move the multiple receiving sections to the vicinity of the tank or tank and perform the distribution via piping. The method of dispensing and distributing money was done manually. Furthermore, even with the piping connection described above, a type of fluid can be
When dispensing and distributing waste to individual receiving sections, the number of pipes required is n, and there are many issues that need to be improved in terms of installation costs, maintenance and management, effective use of land, etc. In particular, with the recent diversification of demand, various types of mobile tank batch production systems are being discussed as a future desirable production system for high-mix, low-volume production. When adding auxiliary raw materials, piping must be connected each time, which results in a large time loss and there is also concern about contamination, so a more efficient raw material distribution means than before has been desired.
本発明は、前記した従来装置の問題点を解決し、ケーシ
ング内に回転可能に配設したロータに穿設した流路を槽
の払出管と連通せしめるのみで、多数の受入部に前記槽
内の流体を容易に分配できるようにした分配装置の提供
を目的とするものである。The present invention solves the problems of the conventional device described above, and simply connects a flow path bored in a rotor rotatably disposed in a casing with a discharge pipe of a tank, thereby allowing a large number of receiving parts to be connected to the inside of the tank. The object of the present invention is to provide a dispensing device that can easily dispense a fluid.
〔課題を解決するための技術手段］
本発明に係る流体の分配装置は、前記の目的を達成する
ために、ケーシング内に、一端を上面中央部に開口し、
他端は側面に開口する略り状の流路を穿孔したロータを
回転可能に配設し、前記流路の上面中央部開口を払出管
及び洗浄管と連結した流体管を連通させ、前記流路の側
面部開口を、ケーシング側周に複数又は多数配設した分
配管に選択的に連通させ、前記それぞれの分配管に各別
に弁装置を介装せしめたことをその特徴とするものであ
る。[Technical means for solving the problem] In order to achieve the above-mentioned object, the fluid distribution device according to the present invention has one end opened in the center of the upper surface in the casing,
The other end is rotatably disposed with a rotor having an abbreviated flow path that opens on the side surface, and the opening at the center of the upper surface of the flow path communicates with a fluid pipe connected to a dispensing pipe and a cleaning pipe. The lateral opening of the channel is selectively communicated with a plurality or a large number of distribution pipes arranged around the side of the casing, and each of the distribution pipes is provided with a separate valve device. .
本発明に係る流体の分配装置は、ケーシング内に、一端
を上面中央部に開口し、他端は側面に開口する略り状の
流路を穿設したロータを回転可能に配設し、前記流路の
上面中央部開口を槽の払出管及び洗浄管に連通ずる流体
管に連通させ、前記流路の側面開口を、ケーシングの側
面に複数又は多数配設したそれぞれの受入槽に連結され
た分配管に選択的に連通ずるようにしたので、槽内の流
体を払出管、流体管よりロータの流路を介して受入槽に
分配し、一つの受入槽に分配終了後、洗浄液管を兼ねた
気体管より気体を流路に供給して完全に流体を流し、次
いでロータを回動せしめて、流路の側面開口部をケーシ
ングに設けられた他の所望の受入槽に連結の分配管に連
通ずるようにして、上記と同様の作用を繰り返し一つの
流路によって多数の受入槽に流体を分配するものである
。A fluid distribution device according to the present invention rotatably disposes a rotor in a casing, the rotor having an abbreviated flow path having one end opened at the center of the upper surface and the other end opened at the side surface. The opening at the center of the upper surface of the flow channel is connected to a fluid pipe that communicates with the discharge pipe and the cleaning pipe of the tank, and the side opening of the flow channel is connected to each of the receiving tanks arranged in plurality or in large numbers on the side surface of the casing. Since it selectively communicates with the distribution pipe, the fluid in the tank is distributed from the discharge pipe and the fluid pipe to the receiving tank via the flow path of the rotor, and after distribution to one receiving tank, it also serves as the cleaning liquid pipe. Gas is supplied to the channel from the gas pipe provided in the casing to completely flow the fluid, and then the rotor is rotated to connect the side opening of the channel to a distribution pipe connected to another desired receiving tank provided in the casing. The fluid is distributed to a large number of receiving tanks through one channel by repeating the same action as described above in a continuous manner.
本発明の実施例を図面に基いて説明する。 Embodiments of the present invention will be described based on the drawings.
図において、１は球形を中心線に沿って上部と下部とを
切除した形状をなしたロータであって、該ローラ１は例
えば二つ割にしたケーシング２内乙こ回転可能に配設さ
れている。In the figure, reference numeral 1 denotes a rotor having a spherical shape with the upper and lower parts cut out along the center line, and the roller 1 is rotatably disposed inside a casing 2 which is divided into two parts, for example. There is.
前記したロータｌに一端を上面中央部に開口し、他端は
ロータ１の側面に開口する略Ｌｆｋの流路３を穿設して
あり、また前記ロータ１の下面中央部には回転軸９を下
方に突設しケーシング外に突出する中央突設部１′が形
成されている。A passage 3 of approximately Lfk is bored in the rotor 1, with one end opening at the center of the upper surface and the other end opening at the side surface of the rotor 1, and a rotating shaft 9 at the center of the lower surface of the rotor 1. A central protrusion 1' is formed which protrudes downward and out of the casing.
前記したケーシング２は円筒状をなし、その下面にロー
クリエンコーダ７を設置し、該ロークリエンコーダ７の
軸と前記ロータｌの回転軸９とをタイミングベルト８で
掛は渡し、前記の回転軸９はギヤートモ−タロによって
作動せしめられる。The above-mentioned casing 2 has a cylindrical shape, and a rotary encoder 7 is installed on the lower surface of the casing 2, and the axis of the rotary encoder 7 and the rotating shaft 9 of the rotor I are hooked and passed by a timing belt 8, and the rotary shaft is 9 is actuated by the gear motor.
したがって、ロータ１の中央突設部１′に突設された回
転軸９は、ギヤートモ−タロによって作動され、ローク
リエンコーダ６で回転角度を計測。Therefore, the rotary shaft 9 protruding from the central protrusion 1' of the rotor 1 is operated by the gear motor rotor, and the rotation angle is measured by the rotor encoder 6.
調節し、タイミングベルト８により回転軸９すなわちロ
ータ１を所定の方向に正確にロータ１の上面中央部に開
口する垂直方向流路を中心として回動させ、ロータ１の
流路６の側面開口を後記するケーシング２の周面に設け
た流体分配用開口に連通ずる位置に停止するように作動
する。The rotation shaft 9, that is, the rotor 1, is rotated in a predetermined direction accurately by the timing belt 8, centering on the vertical passage opening at the center of the upper surface of the rotor 1, and the side opening of the passage 6 of the rotor 1 is rotated. It operates so as to stop at a position communicating with a fluid distribution opening provided on the circumferential surface of the casing 2, which will be described later.
２１．２ｚ、 ・・−・・・は、前記したロータ１の流
路３の側面開口と一致する位置のケーシング２０周壁に
形成せしめた流体分配用開口であり、該開口２１．２ｚ
、・・・・・・が形成されたケーシング２には分配管５
，５．・・・・・・がそれぞれ嵌入される。前記開口２
．．２ｚ、・・・・・・にはそれぞれ弁座１３が設けら
れ、１２は該弁座１３にエアシリンダ１０によって弁体
１１を介して接離可能とされた弁体である。21.2z, . . . are fluid distribution openings formed in the peripheral wall of the casing 20 at positions that coincide with the side openings of the flow passages 3 of the rotor 1, and the openings 21.2z
, ...... is formed in the casing 2, there is a distribution pipe 5.
,5. ... are inserted respectively. Said opening 2
．． ．． A valve seat 13 is provided in each of the valves 2z, .
前記した分配管５には三方弁１４′を介して受入槽（図
示しない）に連結される流体管１５． 、１５□。The aforementioned distribution pipe 5 has a fluid pipe 15 connected to a receiving tank (not shown) via a three-way valve 14'. , 15□.
・・・・・・及び洗浄液排出管１６． 、１６□、・・
・・・・が接続される。. . . and cleaning liquid discharge pipe 16. , 16□,...
... is connected.
４は前記したロータ１の流路６の上面中央部開口と連通
ずるようにケーシング２に開口された流通口に連結され
た流体管であり、該流体管４に三方弁１４を介して気体
あるいは洗浄液を供給する洗浄液管１６及び槽（図示し
ない）に接続する払出管１５が連結されている。Reference numeral 4 denotes a fluid pipe connected to a communication port opened in the casing 2 so as to communicate with the opening at the center of the upper surface of the flow path 6 of the rotor 1, and gas or A cleaning liquid pipe 16 that supplies cleaning liquid and a discharge pipe 15 that connects to a tank (not shown) are connected.
また、図中１７は弁棒１１の密封装置、１７′はロータ
１とケーシング開口部との間に介装せしめた密封装置で
ある。Further, in the figure, 17 is a sealing device for the valve stem 11, and 17' is a sealing device interposed between the rotor 1 and the casing opening.
第２図では、ケーシング２の周壁３カ所で分配管５を接
続する流体分配用開口２２，２□、・・・・・・を設け
ているが、前記の開口２３，２□、・・・・・・はその
数９位置は任意である。In FIG. 2, fluid distribution openings 22, 2□, . . . . The number 9 positions are arbitrary.
本実施例は上記したように構成されるもので、その作動
について説明すると、作動時において、払出管１５は流
体貯蔵槽（図示しない）に接続しており、分配管５に連
結される流体管１５． 、１５□。The present embodiment is configured as described above, and its operation will be explained. During operation, the discharge pipe 15 is connected to a fluid storage tank (not shown), and the fluid pipe connected to the distribution pipe 5. 15. , 15□.
１５３、・・・・・・は、それぞれ多数の槽に接続され
ている。流体を所定の受入槽（図示しない）に分配する
ため流体管１５．を前記の受入槽と自動配管接続装置等
で接続する。そして、この時点においてはエアシリンダ
１０を作動して弁棒１１にて弁体１２をケーシング２の
流体分配用開口２１に設けた弁座１３に密封せしめてお
く。中央制御室の指示によりギヤートモ−タロを作動し
てロータ１に突設された回転軸９を回転させると、該回
転軸９はロークリエンコーダ７とタイミングヘルド８に
て係合しているので、前記のロータリエンコーダ７で回
転角度を計測、調節し、ロータ１を所定の位置にまで回
動してミロータ１の流路３の側面開口が、ケーシング２
の周壁の流体分配用間口２８，２□、・・・・・・の内
の所定の一つである開口２．と密接する位置に停止させ
られる。前記した流路３の側面開口とケーシングの流体
分配用開口２１とが完全に接続されていることを確認す
る必要があり、その確認としてロータ１の流路３の上面
開口と連通しているケーシング２の流通口と連結される
流体管４に介装の三方弁１４を操作して気体管（洗浄液
管）１６より気体を供給し、該気体は払出管４、ケーシ
ング２の流通口を通ってロータ１の流路３内に供給され
ロータ１とケーシング２との接合状態、洩れ状況の有無
を圧力検知したうえ、エアシリンダ１０を作動して弁体
１２を弁座１３より離間せしめ、流体管４の三方弁１４
を作動して、流体貯蔵槽と連結する払出管１５より流体
を三方弁１４、流体管４、ロータ１の流路３、ケーシン
グ２の流体分配用開口２Ｉを通って分配管５より三方弁
１４′を介して流体管１５より受入槽（図示しない）に
分配される。153, . . . are each connected to a large number of tanks. Fluid conduits 15 for distributing fluid to predetermined receiving vessels (not shown). is connected to the above-mentioned receiving tank using an automatic piping connection device, etc. At this point, the air cylinder 10 is operated to seal the valve body 12 with the valve stem 11 against the valve seat 13 provided in the fluid distribution opening 21 of the casing 2 . When the geared motor rotor is operated according to instructions from the central control room to rotate the rotary shaft 9 protruding from the rotor 1, the rotary shaft 9 is engaged with the row encoder 7 through the timing heald 8, so that The rotary encoder 7 measures and adjusts the rotation angle, and the rotor 1 is rotated to a predetermined position so that the side opening of the flow path 3 of the mirotor 1 is aligned with the casing 2.
The opening 2. is a predetermined one of the fluid distribution openings 28, 2□, . The robot is stopped in a position that is in close contact with the vehicle. It is necessary to confirm that the side opening of the flow passage 3 described above and the fluid distribution opening 21 of the casing are completely connected, and to confirm this, it is necessary to confirm that the side opening of the flow passage 3 described above and the fluid distribution opening 21 of the casing are completely connected. Gas is supplied from the gas pipe (cleaning liquid pipe) 16 to the fluid pipe 4 connected to the flow port of casing 2 by operating the interposed three-way valve 14, and the gas passes through the discharge pipe 4 and the flow port of casing 2. The pressure is supplied into the flow path 3 of the rotor 1 to detect the state of connection between the rotor 1 and the casing 2 and the presence or absence of leakage, and then actuates the air cylinder 10 to separate the valve body 12 from the valve seat 13, thereby controlling the fluid pipe. 4 three-way valve 14
The fluid is supplied from the dispensing pipe 15 connected to the fluid storage tank through the three-way valve 14, the fluid pipe 4, the flow path 3 of the rotor 1, the fluid distribution opening 2I of the casing 2, and then from the distribution pipe 5 to the three-way valve 14. ' from the fluid pipe 15 to a receiving tank (not shown).
所定量の流体が払出されると三方弁１４を閉とし気体管
（洗浄液管）１６より気体を注入し、流路３内に残る流
体をすべて圧送したうえで分配管５の：方弁１４′を閉
にする。When a predetermined amount of fluid has been discharged, the three-way valve 14 is closed, gas is injected from the gas pipe (cleaning liquid pipe) 16, and after all the fluid remaining in the flow path 3 is pumped out, the three-way valve 14 of the distribution pipe 5 is closed. close.
洗浄を必要とする場合は、洗浄液管１６より洗浄液を圧
送し、流路を洗浄して廃液は洗浄排液管１６１より排出
する。続いてエアシリンダ１０を作動して弁体１１を前
進させ、弁体１２をケーシング２の流体分配用開口２１
に設けた弁座１３に押接して流路を閉鎖する。流体分配
用開口２．には密封装置１７′が設けであるので流体の
洩れは生じない。When cleaning is required, the cleaning liquid is pumped through the cleaning liquid pipe 16 to clean the flow path, and the waste liquid is discharged through the cleaning drainage pipe 161. Subsequently, the air cylinder 10 is actuated to move the valve body 11 forward, and the valve body 12 is inserted into the fluid distribution opening 21 of the casing 2.
The valve seat 13 is pressed to close the flow path. Fluid distribution opening2. Since a sealing device 17' is provided, no fluid leakage occurs.
引き続いて別の受入部に流体を払出分配する場合は、前
記と全く同様な動作を繰り返し、ロータ１を所定の角度
だけ回動させればよい。If the fluid is subsequently dispensed and distributed to another receiving section, the same operation as described above may be repeated, and the rotor 1 may be rotated by a predetermined angle.
同一の流体を多数の受入部に分配する場合は、流体管１
５． 、１５□、・・・・・・をそれぞれ受入部に固定
接続しておいてもよく、また、上記したようにその都度
自動配管接続装置で接続してもよい。また、流体管１５
を別の流体貯蔵槽と接続することにより、別の流体を分
配することができる。When distributing the same fluid to multiple receiving parts, fluid pipe 1
5. , 15□, . In addition, the fluid pipe 15
By connecting the device with another fluid reservoir, another fluid can be dispensed.
本実施例でいう流体は、液体状のものに限定されるもの
でなく、粉粒体、ペレット状、ガス状のものであっても
本装置を利用することはできるものである。The fluid mentioned in this embodiment is not limited to liquid, and the present device can be used even if it is powder, pellet, or gas.
本実施例は、多数の受入部に払出１分配する装置で、流
体管を多数の受入部にそれぞれ固定接続あるいは必要の
都度自動接続するのみで、ロータを回転することにより
簡単に流体を払出２分配することができるものである。This embodiment is a device that dispenses fluid 1 to a large number of receiving sections, and simply connects fluid pipes to the large number of receiving sections either fixedly or automatically each time the rotor is rotated to easily dispense fluid 2. It is something that can be distributed.
そして、前記の分配については同一の流路を経て多数の
受入部に選択的に行うものであり、前記の流路の洗浄も
可能としたので、汚染等の必要は全くないものである。The above-mentioned distribution is performed selectively to a large number of receiving sections through the same flow path, and since the flow path can also be cleaned, there is no need for contamination.
本発明に係る流体の分配装置は、ケーシング内に、一端
を上面中央部に開口し、他端は側面に開口する略し状の
流路を穿設したロータを回転可能に配設し、前記流路の
上面中央部開口を洗浄液管兼用気体管及び槽よりの払出
管を連結した流体管と連通させ、前記流路の側面開口を
ケーシング側面に設けた多数の受入槽にそれぞれ連結す
る分配管に選択的に連通ずるようにしたので、槽内の流
体を払出管、流体管よりロータの流路を介して受入槽に
分配することができ、一つの受入槽に分配終了後、必要
に応じて洗浄液管より洗浄液を供給して前記流路を洗浄
し、洗浄終了後ロータを回動せしめて、所望の受入槽に
連結された分配管に前記と同様に流体を分配することが
できるもので、同一の流路を経て選択的に払出・分配が
でき、しかも流路の洗浄も可能であるので、コンタミネ
ーションの心配は一切なく、簡単な操作で多数の受入部
に分配が可能となるもので、その生産性の向上は著しい
ものである。A fluid distribution device according to the present invention rotatably disposes in a casing a rotor having an abbreviated flow path with one end opening in the center of the upper surface and the other end opening in the side surface, and The opening at the center of the upper surface of the channel is connected to a fluid pipe that connects the gas pipe that also serves as a cleaning liquid pipe and the discharge pipe from the tank, and the side opening of the flow channel is connected to a distribution pipe that connects each to a number of receiving tanks provided on the side surface of the casing. Because of the selective communication, the fluid in the tank can be distributed from the discharge pipe and the fluid pipe to the receiving tank via the flow path of the rotor. A cleaning liquid is supplied from a cleaning liquid pipe to clean the flow path, and after cleaning is completed, the rotor is rotated to distribute the fluid to a distribution pipe connected to a desired receiving tank in the same manner as described above, Since it is possible to selectively dispense and distribute through the same flow path, and the flow path can also be cleaned, there is no need to worry about contamination, and distribution to multiple receiving sections is possible with simple operations. , the improvement in productivity is remarkable.
図面は本発明の実施例を示し、第１図は装置の一部縦断
説明図、第２図は流路とケーシングの流体供給用開口と
の関係説明図である。
１：ロータ ２：ケーシング３：流 路
４：流体管
５：分配管 １０：エアシリンダ１２：弁
１５：払出管
１５１ 、１５□ ：流体管 １６：洗浄液（気体）
管１６、：廃液排出管The drawings show an embodiment of the present invention, and FIG. 1 is a partial longitudinal sectional view of the device, and FIG. 2 is a diagram illustrating the relationship between the flow path and the fluid supply opening of the casing. 1: Rotor 2: Casing 3: Flow path
4: Fluid pipe 5: Distribution pipe 10: Air cylinder 12: Valve
15: Discharge pipe 151, 15□: Fluid pipe 16: Cleaning liquid (gas)
Pipe 16: Waste liquid discharge pipe
Claims (1)
面に開口する略Ｌ状の流路を穿孔したロータを回転可能
に配設し、前記流路の上面中央部開口を払出管及び洗浄
管と連結した流体管を連通させ、前記流路の側面部開口
を、ケーシング側周に複数又は多数配設した分配管に選
択的に連通させ、前記それぞれの分配管に各別に弁装置
を介装せしめたことを特徴とする流体の分配装置。A rotor is rotatably disposed in the casing, and has a substantially L-shaped flow path with one end opening at the center of the upper surface and the other end opening at the side surface, and the opening at the center of the upper surface of the flow path is connected to a dispensing pipe and a rotor. The fluid pipe connected to the cleaning pipe is communicated, the side opening of the flow path is selectively communicated with a plurality or a plurality of distribution pipes arranged on the side circumference of the casing, and a valve device is separately provided in each of the distribution pipes. 1. A fluid dispensing device characterized in that a fluid dispensing device is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3818890A JP2864265B2 (en) | 1990-02-21 | 1990-02-21 | Fluid distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3818890A JP2864265B2 (en) | 1990-02-21 | 1990-02-21 | Fluid distribution device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03242239A true JPH03242239A (en) | 1991-10-29 |
| JP2864265B2 JP2864265B2 (en) | 1999-03-03 |
Family
ID=12518398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3818890A Expired - Fee Related JP2864265B2 (en) | 1990-02-21 | 1990-02-21 | Fluid distribution device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2864265B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089047A (en) * | 2014-06-30 | 2014-10-08 | 浙江泛泰仪器有限公司 | Selector valve capable of preventing cross contamination |
-
1990
- 1990-02-21 JP JP3818890A patent/JP2864265B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089047A (en) * | 2014-06-30 | 2014-10-08 | 浙江泛泰仪器有限公司 | Selector valve capable of preventing cross contamination |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2864265B2 (en) | 1999-03-03 |
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