WO2022105388A1 - 一种试剂盒出液装置 - Google Patents

一种试剂盒出液装置 Download PDF

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Publication number
WO2022105388A1
WO2022105388A1 PCT/CN2021/117667 CN2021117667W WO2022105388A1 WO 2022105388 A1 WO2022105388 A1 WO 2022105388A1 CN 2021117667 W CN2021117667 W CN 2021117667W WO 2022105388 A1 WO2022105388 A1 WO 2022105388A1
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WO
WIPO (PCT)
Prior art keywords
nozzle
annular
annular sleeve
pipe
shoulder
Prior art date
Application number
PCT/CN2021/117667
Other languages
English (en)
French (fr)
Inventor
郝书顺
眭彦军
刘奕
陈立柱
姚召辉
Original Assignee
石家庄禾柏生物技术股份有限公司
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 石家庄禾柏生物技术股份有限公司 filed Critical 石家庄禾柏生物技术股份有限公司
Priority to EP21893539.3A priority Critical patent/EP4234990A1/en
Priority to CA3199716A priority patent/CA3199716C/en
Priority to JP2023531021A priority patent/JP7376751B1/ja
Priority to KR1020237019253A priority patent/KR102644341B1/ko
Publication of WO2022105388A1 publication Critical patent/WO2022105388A1/zh
Priority to US18/199,313 priority patent/US11766681B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3013—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a lift valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/16—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards
    • 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
    • B01L3/52—Containers specially adapted for storing or dispensing a reagent
    • 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
    • B01L3/52—Containers specially adapted for storing or dispensing a reagent
    • B01L3/523—Containers specially adapted for storing or dispensing a reagent with means for closing or opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/06—Fluid handling related problems
    • B01L2200/0615—Loss of fluid by dripping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/06—Fluid handling related problems
    • B01L2200/0689—Sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/08—Ergonomic or safety aspects of handling devices
    • B01L2200/087—Ergonomic aspects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/14—Process control and prevention of errors
    • B01L2200/141—Preventing contamination, tampering
    • 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
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0848—Specific forms of parts of containers
    • B01L2300/0858—Side walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/04—Moving fluids with specific forces or mechanical means
    • B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
    • B01L2400/0478—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/06—Valves, specific forms thereof
    • B01L2400/0622—Valves, specific forms thereof distribution valves, valves having multiple inlets and/or outlets, e.g. metering valves, multi-way valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/06—Valves, specific forms thereof
    • B01L2400/0633—Valves, specific forms thereof with moving parts
    • B01L2400/065—Valves, specific forms thereof with moving parts sliding valves

Definitions

  • the present invention relates to a kit liquid discharging device.
  • Kits are common laboratory supplies used in the preservation of reaction reagents.
  • the reagents used in laboratories and testing instruments are used to extract the reagents from the reagent box with a pipette or a syringe.
  • the pipette tip needs to be replaced, or the syringe and needle need to be cleaned, which is cumbersome and time consuming.
  • the amount of extraction is easily affected by the operator's operation method, which is not conducive to converting it into an automated instrument for operation.
  • the purpose of the present invention is to provide a kit liquid discharge device with simple and compact structure, convenient automation and precise liquid extraction.
  • the present invention adopts following technical scheme:
  • a reagent kit liquid outlet device which comprises a nozzle and a nozzle arranged at the end of the nozzle;
  • the nozzle includes a nozzle main body, a nozzle hole arranged in the axial direction of the nozzle main body, and a magnet bar arranged in the nozzle hole.
  • the inner wall of the nozzle hole is evenly provided with a number of retaining bars along the nozzle hole axis.
  • One end of each bar is provided with a shoulder extending toward the center of the spray hole, and the magnet bar moves along the axial direction of the spray hole in the space enclosed by the shoulder and the bar;
  • the nozzle comprises an annular sleeve, an end plate arranged at one end of the annular sleeve, a nozzle tube arranged in the center of the end plate, and a conical spout arranged at the end of the nozzle tube, and the end plate is also provided with a nozzle tube surrounding the nozzle tube.
  • an annular rib on the outer periphery, a liquid channel communicating with the inside of the annular sleeve is arranged in the nozzle tube and the conical spout, and an annular groove is formed between the nozzle tube and the annular rib;
  • the annular sleeve is screwed or clamped with the main body of the nozzle.
  • the main body of the nozzle is provided with an external thread on the outer side of one end of the shoulder, and the open end of the annular sleeve is provided with an internal thread matched with the external thread.
  • the nozzle main body is provided with a connecting ring platform on the outside of the other end opposite to the shoulder, the outer side of the connecting ring platform is provided with an annular boss, and the open end of the annular sleeve is provided with a The annular groove that the boss mates with.
  • a sealing gasket is arranged in the annular sleeve.
  • the magnet bar is cylindrical.
  • the number of said bars is more than three.
  • the inner diameter of the circular section enclosed by the plurality of shoulders is smaller than the outer diameter of the section of the magnet bar, and the inner diameter of the circular section enclosed by the plurality of bars is larger than the outer diameter of the section of the magnet bar.
  • the beneficial effect of the present invention is that the nozzle and the nozzle are connected by clamping or screwing, which is convenient for disassembly and replacement.
  • the shoulder in the nozzle hole of the nozzle main body is used to block the magnet bar from blocking the liquid inlet end, and an air groove for liquid flow can be formed between adjacent bars. The flow of liquid along the air groove will not be affected by the magnet bar.
  • the nozzle outside the nozzle is blocked, and the movement of the magnet rod in the nozzle hole realizes the opening and closing of the nozzle.
  • the conical spout of the nozzle is designed with a conical surface to prevent the liquid from dripping.
  • the present invention is easy to install and has good liquid spraying effect.
  • the structure of the invention is ingenious and simple, which is beneficial to realize the miniaturization of the device.
  • FIG. 1 is a schematic cross-sectional structure diagram of Embodiment 1.
  • FIG. 1 is a schematic cross-sectional structure diagram of Embodiment 1.
  • FIG. 2 is a schematic cross-sectional structure diagram of Embodiment 2.
  • FIG. 2 is a schematic cross-sectional structure diagram of Embodiment 2.
  • a reagent cartridge liquid outlet device includes a nozzle and a nozzle arranged at the end of the nozzle.
  • the nozzle includes a nozzle main body 1-1, a nozzle hole 1-2 arranged in the axial direction of the nozzle main body 1-1, and a magnet bar 1-3 arranged in the nozzle hole 1-2.
  • the nozzle hole 1- The inner wall of 2 is evenly provided with a number of retaining bars 1-4 along the axial direction of the injection hole 1-2, and one end of each retaining bar 1-4 is provided with a shoulder 1-4 extending toward the center of the injection hole 1-2. 5.
  • the magnet bar 1-3 moves along the axial direction of the spray hole 1-2 in the space enclosed by the shoulder 1-5 and the stop bar 1-4.
  • the nozzle main body is fixedly connected with the reagent box, and the nozzle hole in the nozzle main body communicates with the liquid outlet hole 4 of the reagent box 3 .
  • the end of the nozzle main body 1-1 where the shoulder 1-5 is located is the liquid inlet end, and the liquid reagent in the kit flows from the liquid inlet end into the nozzle hole of the nozzle main body.
  • the inner diameter of the circular cross-section enclosed by the shoulders 1-5 is smaller than the outer diameter of the cross-section of the magnet bars 1-3, and the inner diameter of the circular cross-section enclosed by the retaining bars 1-4 is larger than that of the magnet bars 1-3.
  • the shoulder blocks the movement of the magnet bar toward the liquid outlet of the reagent cartridge, preventing the magnet bar from blocking the liquid outlet.
  • An air groove is formed between adjacent bars, and the liquid reagent can flow in the nozzle hole through the air groove without being affected by the magnet bar.
  • the nozzle includes an annular sleeve 2-1, an end plate 2-2 arranged at one end of the annular sleeve 2-1, a nozzle tube 2-3 arranged in the center of the end plate 2-2, and an end plate 2-3 arranged at the end of the nozzle tube 2-3.
  • the end plate 2-2 is also provided with an annular stop 2-5 surrounding the outer circumference of the nozzle pipe 2-3, the nozzle pipe 2-3 is connected to the conical nozzle 2-4
  • a liquid channel 2-6 which communicates with the inside of the annular sleeve 2-1 is provided inside, and an annular groove 2-7 is formed between the nozzle pipe 2-3 and the annular retaining edge 2-5.
  • the conical spout of the nozzle is designed with a conical surface to prevent the liquid from dripping.
  • the nozzle tube 2-3 is truncated cone or cylindrical, and the outer side of the nozzle tube is provided with an annular rib and an annular groove to prevent the slender nozzle tube from being damaged by external forces. Make the sealing cover not easy to fall off.
  • the annular sleeve 2-1 is threadedly connected with the nozzle main body 1-1.
  • the nozzle main body 1-1 is provided with an external thread 1-6 on the outer side of one end located on the shoulder 1-5, and the open end of the annular sleeve 2-1 is provided with the external thread 1-6 Mating female threads 2-8.
  • connection end between the main body of the nozzle and the annular sleeve has no shoulder, and the magnet bar can interfere with the liquid channel in the nozzle to block the liquid reagent from entering the nozzle, so as to achieve the purpose of blocking.
  • the annular sleeve 2-1 is provided with a sealing washer 2-10, the center of the sealing washer has a through hole 2-11, the diameter of the through hole at one end of the spray hole is smaller than the diameter at one end of the liquid channel, which is beneficial to the magnet bar. Seal one end of the orifice.
  • the sealing gasket seals the nozzle body with the annular casing around it to prevent liquid leakage.
  • the magnet bars 1-3 are cylindrical. There are more than three retaining bars 1-4, which are evenly distributed on the inner wall of the injection hole, and are shown as 6 in FIG. 1 . Too few bars (one or two) will cause the magnet bar to stick to the inner wall of the nozzle hole during the movement. Too many bars will make the air grooves between adjacent bars too narrow, which will cause the flow resistance to change. big.
  • an electromagnet can be set on the liquid inlet end of the nozzle body, and a permanent magnet ring can be set on the outside of the connecting ring of the nozzle body.
  • the permanent magnet ring and the magnet rod have opposite polarities to attract the magnet The rod blocks the nozzle and stops the liquid discharge.
  • the electromagnet is energized, the magnetic force of the electromagnet is greater than the magnetic force of the permanent magnet ring, the magnet bar is attracted to the liquid inlet end, the shoulder is against the magnet bar, and the liquid reagent enters the nozzle through the air tank and is discharged.
  • the annular sleeve 2-1 is clamped to the nozzle main body 1-1.
  • the nozzle main body 1-1 is provided with a connecting ring platform 1-7 on the outside of the other end opposite to the shoulder platform 1-5, and an annular boss 1-8 is provided on the outer side of the connecting ring platform 1-7
  • the open end of the annular sleeve 2-1 is provided with an annular groove 2-9 matched with the annular boss 1-8.
  • the nozzle is matched with the annular boss on the main body of the nozzle, and the connecting annular platform is inserted into the annular sleeve, which is convenient and direct to install and not easy to fall off.
  • the liquid reagent is ejected from the liquid channel in the nozzle after passing through the liquid outlet and the nozzle of the kit.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

一种试剂盒出液装置，其包括喷管以及设置在喷管端部的喷嘴；所述喷管包括喷管主体（1-1）、沿喷管主体（1-1）轴向设置的喷孔（1-2）以及设置在喷孔（1-2）内的磁铁棒（1-3），喷孔（1-2）的内壁上均匀设置有若干个沿喷孔（1-2）轴向的档条（1-4），每个档条（1-4）的一端设置有向喷孔（1-2）中心延伸的肩台（1-5），磁铁棒（1-3）在由肩台（1-5）和档条（1-4）围合的空间内沿喷孔（1-2）的轴向移动；所述喷嘴包括环形套管（2-1）、设置在环形套管（2-1）一端的端板（2-2）、设置在端板（2-2）中心的喷嘴管（2-3）以及设置在喷嘴管（2-3）端部的锥形喷口（2-4），端板（2-2）上还设置有环绕在喷嘴管（2-3）外周的环形档边（2-5），喷嘴管（2-3）与锥形喷口（2-4）内设置有与环形套管（2-1）内部连通的液体通道（2-6），喷嘴管（2-3）与环形档边（2-5）之间围合形成环形沟槽（2-7）；所述环形套管（2-1）与喷管主体（1-1）螺纹连接或卡接。该试剂盒出液装置结构简单，喷液效果好，方便更换喷嘴，利于实现装置小型化。

Description

一种试剂盒出液装置 技术领域
本发明涉及一种试剂盒出液装置。
 背景技术
试剂盒是实验室常见的实验用品，用于反应试剂的保存。现在实验室和检测仪器使用试剂都是采用移液器或注射器将试剂从试剂盒抽出使用，抽取不同的试剂时还需要更换移液器吸头，或需要清洗注射器及针头，操作繁琐，浪费时间，抽取的量容易受到操作人操作手法的影响，不利于转化为自动化仪器进行操作。
 技术问题
本发明的目的是提供一种结构简单紧凑，方便自动化、精准取液的试剂盒出液装置。
 技术解决方案
本发明采用如下技术方案：
一种试剂盒出液装置，其包括喷管以及设置在喷管端部的喷嘴；
所述喷管包括喷管主体、沿喷管主体轴向设置的喷孔以及设置在喷孔内的磁铁棒，所述喷孔的内壁上均匀设置有若干个沿喷孔轴向的档条，每个所述档条的一端设置有向喷孔中心延伸的肩台，所述磁铁棒在由肩台和档条围合的空间内沿喷孔的轴向移动；
所述喷嘴包括环形套管、设置在环形套管一端的端板、设置在端板中心的喷嘴管以及设置在喷嘴管端部的锥形喷口，所述端板上还设置有环绕在喷嘴管外周的环形档边，所述喷嘴管与锥形喷口内设置有与环形套管内部连通的液体通道，所述喷嘴管与环形档边之间围合形成环形沟槽；
所述环形套管与喷管主体螺纹连接或卡接。
进一步的，所述喷管主体在位于肩台一端的外侧设置有外螺纹，所述环形套管的开口端设置有与所述外螺纹配合的内螺纹。
进一步的，所述喷管主体在与肩台相对的另一端外侧设置有连接环台，所述连接环台的外侧设置有环形凸台，所述环形套管的开口端设置有与所述环形凸台配合的环形凹槽。
进一步的，所述环形套管内设置有密封垫圈。
进一步的，所述磁铁棒为圆柱形。
进一步的，所述档条为三个以上。
进一步的，若干个所述肩台围合的圆形截面内径小于磁铁棒的截面外径，若干个所述档条围合的圆形截面内径大于磁铁棒的截面外径。
 有益效果
本发明的有益效果在于：喷管与喷嘴通过卡接或螺纹连接，方便拆卸更换。
喷管主体的喷孔中的肩台用于阻挡磁铁棒封堵进液端，相邻档条之间可形成液体流动的气槽，液体沿气槽流动不会受到磁铁棒的影响，当磁铁棒运动到另一端时封堵喷管外的喷嘴，磁铁棒在喷孔内的运动实现喷管的开闭。
喷嘴的锥形喷口处为锥面设计，防止液体挂滴。喷嘴管外侧有环形档边和环形沟槽，防止细长喷嘴管被外力破坏，沟槽还可以在安装密封盖时，卡住密封盖，使密封盖不易脱落。本发明安装方便，喷液效果好。
本发明结构巧妙简单，利于实现装置的小型化。
 附图说明
图1为实施例1的剖面结构示意图。
图2为实施例2的剖面结构示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整的描述。
实施例1
如图1所示，一种试剂盒出液装置，其包括喷管以及设置在喷管端部的喷嘴。
所述喷管包括喷管主体1-1、沿喷管主体1-1轴向设置的喷孔1-2以及设置在喷孔1-2内的磁铁棒1-3，所述喷孔1-2的内壁上均匀设置有若干个沿喷孔1-2轴向的档条1-4，每个所述档条1-4的一端设置有向喷孔1-2中心延伸的肩台1-5，所述磁铁棒1-3在由肩台1-5和档条1-4围合的空间内沿喷孔1-2的轴向移动。
喷管主体与试剂盒固定连接，喷管主体内的喷孔与试剂盒3的出液孔4相连通。所述喷管主体1-1中肩台1-5所处的一端为进液端，试剂盒内的液体试剂从进液端流入喷管主体的喷孔中。
若干个所述肩台1-5围合的圆形截面内径小于磁铁棒1-3的截面外径，若干个所述档条1-4围合的圆形截面内径大于磁铁棒1-3的截面外径。肩台可阻挡磁铁棒向试剂盒的出液孔移动，以防止磁铁棒封堵出液口。相邻档条之间形成气槽，液体试剂可通过气槽在喷孔内流动而不受磁铁棒的影响。
所述喷嘴包括环形套管2-1、设置在环形套管2-1一端的端板2-2、设置在端板2-2中心的喷嘴管2-3以及设置在喷嘴管2-3端部的锥形喷口2-4，所述端板2-2上还设置有环绕在喷嘴管2-3外周的环形档边2-5，所述喷嘴管2-3与锥形喷口2-4内设置有与环形套管2-1内部连通的液体通道2-6，所述喷嘴管2-3与环形档边2-5之间围合形成环形沟槽2-7。
喷嘴的锥形喷口处为锥面设计，防止液体挂滴。所述喷嘴管2-3为锥台形或圆柱形，喷嘴管外侧有环形档边和环形沟槽，防止细长喷嘴管被外力破坏，沟槽还可以在安装密封盖时，卡住密封盖，使密封盖不易脱落。
所述环形套管2-1与喷管主体1-1螺纹连接。具体的，所述喷管主体1-1在位于肩台1-5一端的外侧设置有外螺纹1-6，所述环形套管2-1的开口端设置有与所述外螺纹1-6配合的内螺纹2-8。
喷管主体与环形套管的连接端并无肩台，磁铁棒可以抵触喷嘴内的液体通道，阻断液体试剂进入喷嘴中，达到封堵的目的。
所述环形套管2-1内设置有密封垫圈2-10，密封垫圈中心带有通孔2-11，所述通孔位于喷孔一端的直径小于其位于液体通道一端的直径，利于磁铁棒对喷孔一端进行密封。密封垫圈四周将喷管主体与环形套管密封，防止漏液。所述磁铁棒1-3为圆柱形。所述档条1-4为三个以上，均匀分布在喷孔内壁上，附图1中显示为6个。档条的数量过少（一个或两个）会导致磁铁棒在运动过程中贴在喷孔内壁上，过多则会使相邻的档条间的气槽过窄，均会造成流动阻力变大。
为了实现磁铁棒在喷孔内的运动，可以在喷管主体的进液端外套装电磁铁，喷管主体的连接环台外套置永磁铁圈，永磁铁圈与磁铁棒极性相反，吸引磁铁棒封堵喷嘴，停止出液。当需要排出液体时，电磁铁通电，电磁铁的磁力大于永磁铁圈的磁力，磁铁棒被吸引至进液端，肩台抵住磁铁棒，液体试剂通过气槽进入喷嘴后排出。
实施例2
如图2所示，同实施例1，区别在于，所述环形套管2-1与喷管主体1-1卡接。具体的，所述喷管主体1-1在与肩台1-5相对的另一端外侧设置有连接环台1-7，所述连接环台1-7的外侧设置有环形凸台1-8，所述环形套管2-1的开口端设置有与所述环形凸台配合1-8的环形凹槽2-9。喷嘴与喷管主体上的环形凸台相配合，连接环台***环形套管内，安装方便直接，不易脱落。液体试剂经试剂盒的出液口和喷管后，由喷嘴内的液体通道喷出。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

  1. 一种试剂盒出液装置，其特征在于，其包括喷管以及设置在喷管端部的喷嘴；
    所述喷管包括喷管主体（1-1）、沿喷管主体（1-1）轴向设置的喷孔（1-2）以及设置在喷孔（1-2）内的磁铁棒（1-3），所述喷孔（1-2）的内壁上均匀设置有若干个沿喷孔（1-2）轴向的档条（1-4），每个所述档条（1-4）的一端设置有向喷孔（1-2）中心延伸的肩台（1-5），所述磁铁棒（1-3）在由肩台（1-5）和档条（1-4）围合的空间内沿喷孔（1-2）的轴向移动；
    所述喷嘴包括环形套管（2-1）、设置在环形套管（2-1）一端的端板（2-2）、设置在端板（2-2）中心的喷嘴管（2-3）以及设置在喷嘴管（2-3）端部的锥形喷口（2-4），所述端板（2-2）上还设置有环绕在喷嘴管（2-3）外周的环形档边（2-5），所述喷嘴管（2-3）与锥形喷口（2-4）内设置有与环形套管（2-1）内部连通的液体通道（2-6），所述喷嘴管（2-3）与环形档边（2-5）之间围合形成环形沟槽（2-7）；
    所述环形套管（2-1）与喷管主体（1-1）通过螺纹连接或卡接。
  2. 根据权利要求1所述的一种试剂盒出液装置，其特征在于，所述喷管主体（1-1）在位于肩台（1-5）一端的外侧设置有外螺纹（1-6），所述环形套管（2-1）的开口端设置有与所述外螺纹（1-6）配合的内螺纹（2-8）。
  3. 根据权利要求1所述的一种试剂盒出液装置，其特征在于，所述喷管主体（1-1）在与肩台（1-5）相对的另一端外侧设置有连接环台（1-7），所述连接环台（1-7）的外侧设置有环形凸台（1-8），所述环形套管（2-1）的开口端设置有与所述环形凸台配合（1-8）的环形凹槽（2-9）。
  4. 根据权利要求1~3任一项所述的一种试剂盒出液装置，其特征在于，所述环形套管（2-1）内设置有密封垫圈（2-10）。
  5. 根据权利要求1所述的一种试剂盒出液装置，其特征在于，所述磁铁棒（1-3）为圆柱形。
  6. 根据权利要求1所述的试剂盒用喷管，其特征在于，所述档条（1-4）为三个以上。
  7. 根据权利要求6所述的试剂盒用喷管，其特征在于，若干个所述肩台（1-5）围合的圆形截面内径小于磁铁棒（1-3）的截面外径，若干个所述档条（1-4）围合的圆形截面内径大于磁铁棒（1-3）的截面外径。
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