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WO2019140549A1 - 采样针清洗装置 - Google Patents

采样针清洗装置 Download PDF

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Publication number
WO2019140549A1
WO2019140549A1 PCT/CN2018/072822 CN2018072822W WO2019140549A1 WO 2019140549 A1 WO2019140549 A1 WO 2019140549A1 CN 2018072822 W CN2018072822 W CN 2018072822W WO 2019140549 A1 WO2019140549 A1 WO 2019140549A1
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WO
WIPO (PCT)
Prior art keywords
sampling needle
flow path
cleaning device
cleaning
flow passage
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.)
Ceased
Application number
PCT/CN2018/072822
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English (en)
French (fr)
Inventor
张震
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Linkray Biotech Co Ltd
Original Assignee
Shenzhen Linkray Biotech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Linkray Biotech Co Ltd filed Critical Shenzhen Linkray Biotech Co Ltd
Priority to PCT/CN2018/072822 priority Critical patent/WO2019140549A1/zh
Publication of WO2019140549A1 publication Critical patent/WO2019140549A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • 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
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/023—Cleaning the external surfaces

Definitions

  • the present invention relates to the field of medical device technology, and in particular to a sampling needle cleaning device.
  • the inner and outer walls of the needle need to be thoroughly cleaned after each sampling to minimize the influence of the contamination of the sampling needle on the test results.
  • the length of the needle that may be contaminated is increased, and the sampling needle is not only the most polluted needle tip portion under the liquid surface but also needs to be cleaned and sampled. It is also necessary to clean the portion of the needle tip that is in contact with the puncture film, and the cleaning length is long.
  • a conventional cleaning device uses a reduced-diameter cleaning flow path to spray-clean the sampling needle.
  • the cleaning flow path is elongated and has a variable diameter, the cleaning flow path is difficult to process; in addition, the flow path matches the sampling needle. The degree is low and it is difficult to ensure that the needle is effectively cleaned.
  • a sampling needle cleaning device includes a cleaning pool, a pool cover disposed at one end of the cleaning pool, and a joint; the pool cover is provided with a through groove and a spray hole communicating with the through groove; the cleaning pool is provided There is a first flow channel, the first flow channel is in communication with the through groove; the first flow channel is disposed in an elongated column shape; the end of the cleaning pool away from the water pool cover is provided with a receiving groove, and the joint is detachably mounted A second flow passage is disposed in the joint in the receiving groove, and the second flow passage is in communication with the first flow passage.
  • the sampling needle cleaning device can be detachably connected to the cleaning pool provided with the first flow channel by the joint provided with the second flow channel, and the joint of the second flow channel corresponding to the size and shape can be replaced according to the size and shape of the sampling needle, and the joint is not required.
  • Replacing the entire cleaning device is beneficial to improving the applicability of the sampling needle cleaning device and reducing the production cost; the first flow path and the second flow path are separately processed and processed easily, thereby effectively solving the cleaning path of the conventional cleaning device due to the variable diameter and The slender process causes difficulty in processing; the first flow path and the second flow path are separately processed, which is advantageous for improving the processing precision of the first flow path and the second flow path, that is, increasing the first flow path and the second flow path respectively with the main body of the sampling needle The matching degree between the part and the tip of the needle, the sampling needle is effectively cleaned, thereby improving the accuracy of the sampling result of the sampling needle.
  • the cleaning pool is provided with an internal thread portion corresponding to the inner wall of the receiving groove, the outer peripheral wall of the joint has an external thread portion, and the joint is matched with the internal thread portion by the external thread portion A screw is installed in the receiving groove.
  • one end of the cleaning pool is provided with a mounting hole, and the mounting hole is in communication with the first flow channel, and one end of the cleaning pool corresponding to the mounting hole is provided with a liquid inlet, the pool cover is detachable Installed in the mounting hole, the other end of the shower hole is in communication with the liquid inlet.
  • the two ends of the corresponding annular groove of the pool cover are also sleeved with a sealing ring, and the sealing ring is in close contact with the inner wall of the mounting hole.
  • the end of the shower hole communicating with the liquid inlet is higher than the end of the shower hole that communicates with the channel.
  • the pool cover is provided with an annular groove, and the annular groove is respectively connected with the liquid inlet and the spray hole, and the number of the spray holes is plural, and the plurality of sprays The shower holes are circumferentially spaced around the pool cover.
  • the second flow channel has an inverted cone shape, and a cross-sectional area of the end of the second flow channel corresponding to the first flow channel is equal to a cross-sectional area of the first flow channel, A cross-sectional area of the second flow path away from one end of the first flow path is smaller than a cross-sectional area of the first flow path.
  • the second flow passage is disposed in a column shape, and a cross-sectional area of the second flow passage is smaller than a cross-sectional area of the first flow passage.
  • the end of the joint corresponding to the first flow passage is mounted with a seal ring that is in close contact with the bottom wall of the receiving groove.
  • the joint is further provided with a drain passage communicating with the second flow passage, and one end of the joint corresponding to the drain passage is a barb portion.
  • FIG. 1 is an assembled view of a sampling needle cleaning device according to a first embodiment of the present invention
  • Figure 2 is an exploded view of the sampling needle cleaning device of Figure 1;
  • Figure 3 is an assembled view of a sampling needle cleaning device in accordance with a second embodiment of the present invention.
  • Sampling needle 100 main body portion 101, needle tip portion 102;
  • Cleaning tank 10 First flow path 11, mounting hole 12, liquid inlet 13, receiving groove 14, internal thread portion 15;
  • the cleaning tank 10a The cleaning tank 10a, the first flow path 11a, the pool cover 20a, the joint 30a, and the second flow path 31a.
  • a sampling needle cleaning device is used for cleaning a sampling needle 100.
  • the sampling needle 100 includes a main body portion 101 and a needle tip portion 102.
  • the sampling needle 100 usually has a variable diameter region. That is, the needle tip portion 102 is generally a contraction taper having a diameter that gradually decreases from the direction of the main body portion 102 or a column shape having a smaller diameter than the main body portion 102.
  • the sample needle cleaning device includes a cleaning tank 10 and a pool cover disposed at one end of the cleaning tank 10. 20, and connector 30.
  • a first flow channel 11 is disposed in the cleaning pool 10, and the first flow channel 11 is configured to receive a portion of the main body portion 101 that needs to be cleaned.
  • the first flow channel 11 is disposed in an elongated column shape, that is, the first flow channel 11 and
  • the outer dimensions of the main body portion 101 of the sampling needle 100 are matched, which is advantageous for reducing the hanging liquid on the sampling needle 100 and cleaning the main body portion 101 of the sampling needle 100 more thoroughly, thereby improving the precision of the sampling needle.
  • One end of the cleaning pool 10 is provided with a mounting hole 12, and the mounting hole 12 is in communication with the first flow path 11, and the mounting hole 12 is for accommodating the pool cover 20.
  • the cleaning tank 10 is provided with a liquid inlet 13 at one end of the mounting hole 12, and the liquid inlet 13 communicates with the mounting hole 12, and the cleaning liquid enters the first flow path 11 through the liquid inlet 13.
  • One end of the cleaning pool 10 away from the pool cover 20 is provided with a receiving groove 14, that is, the receiving groove 14 is located at one end of the cleaning pool 10 away from the mounting hole 12, the receiving groove 14 is for receiving the joint 30; and the cleaning pool 10 corresponds to the inner wall of the receiving groove 14.
  • the internal thread portion 15 is provided.
  • the pool cover 20 is detachably mounted in the mounting hole 12 for easy processing; in another embodiment, the pool cover 20 can also be integrally formed with the cleaning pool 10.
  • the pool cover 20 is provided with a through slot 21, and the through slot 21 is in communication with the first flow passage 11, and the through slot 21 is provided for the sampling needle 100 to pass through.
  • the pool cover 20 is provided with a spray hole 22, and the spray hole 22 communicates with the liquid inlet 13 and the through groove 21, respectively, that is, the cleaning liquid flows from the liquid inlet 22 through the spray hole 22 and the through groove 21 to the first flow path 11
  • the end of the spray hole 22 communicating with the liquid inlet 13 is higher than the end of the spray hole 22 communicating with the through groove 21, that is, the spray hole 22 is inclined with respect to the through groove 21, so that the cleaning liquid enters from the spray hole 22.
  • the impact force can be generated by the gravity of the flow path, and the outer wall of the sampling needle 100 is flushed, which is advantageous for improving the cleanliness of the sampling needle 100, and can also be sampled according to the sampling.
  • the flushing intensity sets the inclination of the shower hole 22.
  • the pool cover 20 is provided with an annular groove 23, and the annular groove 23 is respectively connected with the liquid inlet 13 and the shower hole 22, and the number of the spray holes 22 is plural, and the plurality of spray holes 22 are surrounded.
  • the pool cover 20 is circumferentially spaced, and the cleaning liquid enters the annular groove 23 from the liquid inlet 13 and then flows into the through groove 21 from each of the shower holes 22, that is, the outer wall of the sampling needle 100 is performed by using the plurality of shower holes 22. Cleaning causes the outer wall of the sampling needle 100 to be washed more uniformly.
  • a plurality of liquid inlets 13 may be disposed in the cleaning tank 10.
  • the pool cover 20 may be provided with a plurality of spray holes 22 respectively corresponding to the liquid inlets 13, so that the outer wall of the sampling needle 100 is more uniformly washed. .
  • the two ends of the pool cover 20 are also provided with a sealing ring 24, and the sealing ring 24 serves as a sealing function.
  • the sealing ring 24 and the mounting hole 12 are The inner wall is in close contact to prevent liquid from overflowing between the pool cover 20 and the inner wall of the mounting hole 12 during cleaning.
  • the joint 30 is detachably mounted in the accommodating groove 14.
  • a second flow path 31 is disposed in the joint 30.
  • the second flow path 31 is in communication with the first flow path 11.
  • the second flow path is mainly used for accommodating the needle tip portion 102.
  • the second flow channel 31 has an inverted cone shape and a second flow path.
  • the track 31 is matched with the outer shape of the tip end of the sampling needle 100.
  • the cross-sectional area of the end of the second flow path 31 corresponding to the first flow path 11 is equal to the cross-sectional area of the first flow path 11, and the second flow path 31 is away from the first
  • the cross-sectional area of one end of the first-class track 11 is smaller than the cross-sectional area of the first flow path 11; the transition portion of the main body portion 101 and the tip portion 10 is easy to gather the liquid of the cleaning liquid and the cleaning is not complete, and the second flow path 31 is set as an inverted cone Shape, which is beneficial to reduce the generation of cleaning liquid and clean cleaning, and improve the accuracy of sampling test results.
  • the outer peripheral wall of the joint 30 has an externally threaded portion 32, and the joint 30 is mounted in the accommodating groove 14 by the mating screwing of the externally threaded portion 32 and the internally threaded portion 15, whereby the joint 30 can be freely detached and mounted, thereby being sampled according to sampling
  • the size and shape of the needle 100 is changed to the joint 30 of the second flow path 31 corresponding to the size and shape, and it is not necessary to replace the entire cleaning device, which is advantageous for improving the applicability of the sample needle cleaning device and reducing the production cost.
  • the processing is easy, thereby effectively solving the problem that the cleaning flow path of the conventional cleaning device is difficult to process due to the variable diameter and slenderness, and the production cost is reduced; when the sampling needle 100 is cleaned, The smaller the matching gap between the outer wall of the cleaning portion of the sampling needle 100 and the flow channel wall of the cleaning device, that is, the better the matching between the sampling needle 100 and the flow channel of the cleaning device, the more thorough the cleaning of the outer wall of the sampling needle 100, cleaning After the completion of the sampling needle 100, the less the outer wall hanging liquid when leaving the cleaning device, the first flow path 11 and the second flow path 31 are separately processed, which is advantageous for improving the processing precision of the first flow path 11 and the second flow path 31, that is, improving the first The first-stage track 11 and the second flow path 31 respectively match the degree of matching between the main body portion 101 of the needle 100 and the needle tip portion 102, thereby improving the cleaning degree of the sampling needle 100.
  • one end of the joint 30 corresponding to the first flow passage 11 is mounted with a sealing ring 33, and the sealing ring 24 serves as a sealing function.
  • the sealing ring 33 and the receiving groove 14 are The bottom wall is in close contact to prevent liquid from overflowing between the joint 30 and the inner wall of the accommodating groove 14 during washing.
  • the position of the joint 30 near the external thread portion 32 is the engaging portion 34.
  • the joint 30 is further provided with a draining passage 33 communicating with the second flow passage 31, and the waste liquid after washing the sampling needle 100 flows out from the draining passage 35; the joint 30 corresponds to one end of the draining passage 35 as the barb portion 36, and the barb
  • the part 36 is used for connecting the waste liquid pipe of the outside, and the waste liquid pipe is connected with the waste liquid pump, and the other end of the waste liquid pump is connected with the external waste liquid collecting device, and the washed waste liquid is discharged from the draining channel 34 through the waste liquid.
  • the tube flows into the waste collection device of the outside world.
  • a sampling needle cleaning apparatus includes a cleaning tank 10a, a pool cover 20a installed on the cleaning tank 10a, and a joint 30a mounted on the cleaning tank 10a.
  • the cleaning channel 10a is provided with a first flow path 11a
  • the joint 30a is provided with a second flow path 31a.
  • the structures of the cleaning pool 10a, the first flow channel 11a, the pool cover 20a, and the joint 30a are the same as those of the cleaning pool 10, the first flow channel 11, the pool cover 20, and the joint 30 in the first embodiment; the difference is that the second The flow path 31a is provided in a column shape, so that the second flow path 31a can match the sampling needle provided by the needle tip portion 102 as a cylindrical body, and the cross-sectional area of the second flow path 31a is smaller than the cross-sectional area of the first flow path 11a.
  • the joint 30 of the second flow path 31 matching the outer shape of the needle tip portion 102 of the sampling needle 100 is installed in the receiving groove 14 of the cleaning tank 10, and the sampling needle 100 is passed through the groove on the pool cover. 21 is inserted, the main body portion 101 to be cleaned is accommodated in the first flow path 11, the needle tip portion 102 is accommodated in the second flow path 31, and the cleaning liquid is sprayed from the liquid inlet 13 through the shower hole 22 to be accommodated in the first flow. The main body portion 101 in the lane 11 then flows to the needle tip portion 102 housed in the second flow passage 31.
  • the sampling needle cleaning device of the present invention is detachably connected to the cleaning pool provided with the second flow path by the joint provided with the second flow path, and the second flow path 31 corresponding to the size and shape can be replaced according to the size and shape of the sampling needle 100.
  • the joint 30 does not need to replace the entire cleaning device, which is advantageous for improving the applicability of the sampling needle cleaning device and reducing the production cost; the first flow path 11 and the second flow path 31 are separately processed and processed easily, thereby effectively solving the traditional cleaning device.
  • the cleaning flow path is difficult to process due to the variable diameter and slenderness; the first flow path 11 and the second flow path 31 are separately processed, which is advantageous for improving the processing precision of the first flow path 11 and the second flow path 31, that is, improving the first flow path.
  • the battery cover 20 is housed in the mounting hole.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

一种采样针清洗装置，包括清洗池(10，10a)、设置在清洗池(10，10a)一端的池盖(20，20a)、以及接头(30，30a)；池盖(20，20a)上设有通槽(21)及连通通槽(21)的喷淋孔(22)；清洗池(10，10a)内设有第一流道(11，11a)，该第一流道(11，11a)与通槽(21)连通；第一流道(11，11a)呈细长柱形状设置；清洗池(10，10a)远离池盖(20，20a)的一端设有容纳槽(14)，接头(30，30a)可拆卸安装在容纳槽(14)内，接头(30，30a)内设有第二流道(31，31a)，第二流道(31，31a)与第一流道(11，11a)对应连通。该采样针清洗装置通过将接头(30，30a)与清洗池(10，10a)可拆卸连接，第一流道(11，11a)和第二流道(31，31a)分开加工，加工容易，从而有效解决了传统清洗装置的清洗流道由于变径且细长导致加工困难的问题；提高第一流道(11，11a)和第二流道(31，31a)分别与采样针(100)的主体部(101)和针尖部(102)的匹配度，采样针(100)得到有效的清洗。

Description

采样针清洗装置 技术领域
本发明涉及医疗器械技术领域，特别是涉及一种采样针清洗装置。
背景技术
在全自动免疫分析仪中，为了提高分析结果的准确性和精密度，每次采样后，都需要对采用针的内外壁进行彻底清洗，以最大限度降低采样针的携带污染对测试结果的影响。此外，当采用针从试剂容器口有穿刺膜的试剂容器内吸取试剂时，采用针可能被污染的长度加大，采样针除了需要清洗采样时位于液面下的污染最严重的针尖部分外，还需要清洗针尖以上于穿刺膜接触的部分，清洗长度较长。
传统的一种清洗装置采用变径后的清洗流道对采样针进行喷淋式清洗，但由于清洗流道细长且存在变径，导致清洗流道加工困难；此外，流道与采样针匹配程度低，很难保证采样针得到有效的清洗。
发明内容
基于此，有必要针对现有技术清洗装置的清洗流道加工困难，且流道与采样针匹配程度低，很难保证采样针得到有效清洗的问题，提供一种采样针清洗装置。
一种采样针清洗装置，包括清洗池、设置在所述清洗池一端的池盖、以及接头；所述池盖上设有通槽及连通所述通槽的喷淋孔；所述清洗池内设有第一流道，该第一流道与所述通槽连通；所述第一流道呈细长柱形状设置；所述清洗池远离所述池盖的一端设有容纳槽，所述接头可拆卸安装在所述容纳槽内，所述接头内设有第二流道，所述第二流道与所述第一流道对应连通。
上述采样针清洗装置通过将设有第二流道的接头与设有第一流道的清洗 池可拆卸连接，可根据采样针的尺寸大小形状更换对应尺寸大小形状第二流道的接头，不需要更换整个清洗装置，有利于提高该采样针清洗装置的适用性和降低生产成本；第一流道和第二流道分开加工，加工容易，从而有效解决了传统清洗装置的清洗流道由于变径且细长导致加工困难的问题；第一流道和第二流道分开加工，有利于提高第一流道和第二流道的加工精度，即提高第一流道和第二流道分别与采样针的主体部和针尖部匹配度，采样针得到有效的清洗，进而提高采样针采样测试结果的精准度。
在其中一个实施例中，所述清洗池对应容纳槽的内壁设有内螺纹部，所述接头的外周壁具有外螺纹部，所述接头通过所述外螺纹部与所述内螺纹部的匹配螺合安装在所述容纳槽内。
在其中一个实施例中，述清洗池的一端设有安装孔，所述安装孔与所述第一流道连通，所述清洗池对应安装孔的一端设有进液口，所述池盖可拆卸安装在所述安装孔内，所述喷淋孔的另一端与所述进液口连通。
在其中一个实施例中，所述池盖对应环形槽的两端还均套设有密封圈，所述密封圈与所述安装孔的内壁紧密接触。
在其中一个实施例中，所述喷淋孔与所述进液口连通的一端高于所述喷淋孔与所述通槽连通的一端。
在其中一个实施例中，所述池盖上设有环形槽，所述环形槽分别与所述进液口和所述喷淋孔连通，所述喷淋孔的数量为多个，多个喷淋孔环绕池盖周向间隔设置。
在其中一个实施例中，所述第二流道呈倒锥形，且所述第二流道与所述第一流道对应一端的横截面积等于所述第一流道的横截面积，所述第二流道远离所述第一流道一端的横截面积小于所述第一流道的横截面积。
在其中一个实施例中，所述第二流道为柱形状设置，且所述第二流道的横截面积小于所述第一流道的横截面积。
在其中一个实施例中，所述接头与所述第一流道对应的一端安装有密封环，所述密封环与所述容纳槽的底壁紧密接触。
在其中一个实施例中，所述接头还设有与所述第二流道连通的排液道，所述接头对应排液道的一端为倒钩部。
附图说明
图1为本发明第一实施例的采样针清洗装置的组装图；
图2为图1的采样针清洗装置的分解图；
图3为本发明第二实施例的的采样针清洗装置的组装图。
附图中各标号的含义为：
采样针100，主体部101，针尖部102；
清洗池10，第一流道11，安装孔12，进液口13，容纳槽14，内螺纹部15；
池盖20，通槽21，喷淋孔22，环形槽23，密封圈24；
接头30，第二流道31，外螺纹部32，密封环33，卡接部34，排液道35，倒钩部36；
清洗池10a，第一流道11a，池盖20a，接头30a，第二流道31a。
具体实施方式
为了便于理解本发明，下面将对本发明进行更全面的描述。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。相反，当元件被称作“直接在”另一元件“上”时，不存在中间元件。本文所使用的术语 “垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
请参考图1及图2，为本发明第一个实施例的采样针清洗装置，用于清洗采样针100，采样针100包括主体部101和针尖部102，采样针100通常存在变径区，即针尖部102一般为直径自远离主体部102方向逐渐变小的收缩锥形或者直径较主体部102小的柱形；该采样针清洗装置包括清洗池10、设置在清洗池10一端的池盖20、以及接头30。
清洗池10内设有第一流道11，第一流道11用于容置主体部101需要清洗的部分；在本实施例中，第一流道11为细长柱形状设置，即第一流道11与采样针100的主体部101的外形尺寸匹配，有利于减少采样针100上的挂液并且使采样针100的主体部101清洗更彻底，从而提高采样针采用结果的精准度。清洗池10的一端设有安装孔12，安装孔12与第一流道11连通，安装孔12用于容置池盖20。清洗池10对应安装孔12的一端设有进液口13，进液口13与安装孔12连通，清洗液经进液口13进入到第一流道11内。清洗池10远离池盖20的一端设有容纳槽14，即容纳槽14位于清洗池10远离安装孔12的一端，容纳槽14用于容置接头30；且清洗池10对应容纳槽14的内壁具有内螺纹部15。
在本实施例中，池盖20可拆卸安装在安装孔12内，便于加工；在另一个实施例中，池盖20也可与清洗池10一体成型设置。池盖20上设有通槽21，通槽21与第一流道11对应连通，通槽21供采样针100穿设。池盖20上设有喷淋孔22，喷淋孔22分别与进液口13和通槽21连通，即清洗液从进液口22经喷淋孔22及通槽21流入到第一流道11内；喷淋孔22与进液口13连通的一端高于喷淋孔22与通槽21连通的一端，即喷淋孔22相对通槽21为倾斜设置，从而清洗液从喷淋孔22进入到通槽21内时，除了流路的清洗压力外，还可以利用自身的重力产生冲击力，对采样针100的外壁进行冲洗，有利于提高采样针100的清洁度，此外还可以根据采样的冲洗强度设置喷淋孔22的倾斜度。在本实施例中，池盖20上设有环形槽23，环形槽23分别与进液口13和喷淋孔22连通，且喷淋孔22的数量为多个，多个喷淋孔 22环绕池盖20周向间隔设置，清洗液从进液口13进入到环形槽23内，然后从各个喷淋孔22流入到通槽21内，即利用多个喷淋孔22对采样针100外壁进行清洗，使得采样针100外壁冲洗的更加均匀。在其他实施例中，清洗池10上可以设置多个进液口13，池盖20上可以设置多个分别与进液口13对应连通的喷淋孔22，使得采样针100外壁冲洗的更加均匀。
在本实施例中，池盖20的两端还均套设有密封圈24，密封圈24起到密封作用，当池盖20容置在安装孔12内时，密封圈24与安装孔12的内壁紧密接触，防止清洗时液体从池盖20与安装孔12内壁之间溢出。
接头30可拆卸安装在容纳槽14内。接头30内设有第二流道31，第二流道31与第一流道11对应连通，第二流道主要用于容置针尖部102，第二流道31呈倒锥形，第二流道31与采样针100的针尖部的外形尺寸匹配，具体地，第二流道31与第一流道11对应一端的横截面积等于第一流道11的横截面积，第二流道31远离第一流道11一端的横截面积小于第一流道11的横截面积；主体部101与针尖部10的过渡区容易聚集清洗液的挂液和清洗不彻底，将第二流道31设置成倒锥形，有利于减少挂液的产生和清洗更干净，提高采样针采样测试结果的精准度。
接头30的外周壁具有外螺纹部32，接头30通过外螺纹部32与内螺纹部15的匹配螺合安装在容纳槽14内，由此，接头30可进行自由拆卸和安装，从而可根据采样针100的尺寸大小形状更换对应尺寸大小形状第二流道31的接头30，不需要更换整个清洗装置，有利于提高该采样针清洗装置的适用性和降低生产成本。因为第一流道11和第二流道31分开加工，加工容易，从而有效解决了传统清洗装置的清洗流道由于变径且细长导致加工困难的问题，降低生产成本；采样针100清洗时，采样针100的清洗部分的外壁和清洗装置的流道壁之间的配合间隙越小，即采样针100与清洗装置的流道两者匹配的越好，采样针100的外壁清洗越彻底，清洗完毕后采样针100离开清洗装置时的外壁挂液越少，因而第一流道11和第二流道31分开加工，有利于提高第一流道11和第二流道31的加工精度，即提高第一流道11和第二流 道31分别采样针100的主体部101和针尖部102匹配度，进而提高采样针100的清洗度。
在本实施例中，接头30与第一流道11对应的一端安装有密封环33，密封圈24起到密封作用，当接头30容置在容纳槽14内时，密封环33与容纳槽14的底壁紧密接触，防止清洗时液体从接头30与容纳槽14内壁之间溢出。接头30靠近外螺纹部32的位置为卡接部34，当接头30通过外螺纹部32与内螺纹部15的匹配螺合固定在容纳槽14内时，卡接部34卡设在清洗池10的端部外，提高接头30与清洗池10连接的稳定性，同时便于安装和拆卸该接头30。接头30还设有与第二流道31连通的排液道33，清洗采样针100后的废液从排液道35流出；接头30对应排液道35的一端为倒钩部36，倒钩部36用于连接外界的废液管，废液管上连接有废液泵，废液泵的另一端与外界的废液收集装置连接，经过清洗后的废液从排液道34经废液管流至外界的废液收集装置中。
请参考图3，为本发明第二个实施例的采样针清洗装置，该采样针清洗装置包括清洗池10a、安装在清洗池10a上的池盖20a、以及安装在清洗池10a上的接头30a，清洗池10a内设有第一流道11a，接头30a内设有第二流道31a。清洗池10a、第一流道11a、池盖20a及接头30a的结构均与第一实施例中的清洗池10、第一流道11、池盖20及接头30的结构相同；不同点在于，第二流道31a为柱形状设置，从而第二流道31a可以匹配针尖部102为柱形体设置的采样针，且第二流道31a的横截面积小于第一流道11a的横截面积。
采样针清洗装置清洗采样针时，将与采样针100的针尖部102外形匹配的第二流道31的接头30安装在清洗池10的容纳槽14内，采样针100从池盖上的通槽21插入，需要清洗的主体部101容置在第一流道11内，针尖部102容置在第二流道31内，清洗液从进液口13经喷淋孔22喷向容置在第一流道11内的主体部101，然后流向容置在第二流道31内的针尖部102。
本发明的采样针清洗装置通过将设有第二流道的接头与设有第一流道的清洗池可拆卸连接，可根据采样针100的尺寸大小形状更换对应尺寸大小形 状第二流道31的接头30，不需要更换整个清洗装置，有利于提高该采样针清洗装置的适用性和降低生产成本；第一流道11和第二流道31分开加工，加工容易，从而有效解决了传统清洗装置的清洗流道由于变径且细长导致加工困难的问题；第一流道11和第二流道31分开加工，有利于提高第一流道11和第二流道31的加工精度，即提高第一流道11和第二流道31分别与采样针100的主体部101和针尖部102匹配度，采样针100得到有效的清洗，进而提高采样针100测试结果的精准度；池盖20容置在安装孔12内，从而也可以更换不同尺寸、数量及倾斜度喷淋孔22的池盖，进一步提高该清洗装置的适用性。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种采样针清洗装置，其特征在于，包括清洗池、设置在所述清洗池一端的池盖、以及接头；所述池盖上设有通槽及连通所述通槽的喷淋孔；所述清洗池内设有第一流道，该第一流道与所述通槽连通；所述第一流道呈细长柱形状设置；所述清洗池远离所述池盖的一端设有容纳槽，所述接头可拆卸安装在所述容纳槽内，所述接头内设有第二流道，所述第二流道与所述第一流道对应连通。
  2. 根据权利要求1所述的采样针清洗装置，其特征在于：所述清洗池对应容纳槽的内壁设有内螺纹部，所述接头的外周壁具有外螺纹部，所述接头通过所述外螺纹部与所述内螺纹部的匹配螺合安装在所述容纳槽内。
  3. 根据权利要求1所述的采样针清洗装置，其特征在于：所述清洗池的一端设有安装孔，所述安装孔与所述第一流道连通，所述清洗池对应安装孔的一端设有进液口，所述池盖可拆卸安装在所述安装孔内，所述喷淋孔的另一端与所述进液口连通。
  4. 根据权利要求3所述的采样针清洗装置，其特征在于：所述池盖对应环形槽的两端还均套设有密封圈，所述密封圈与所述安装孔的内壁紧密接触。
  5. 根据权利要求3所述的采样针清洗装置，其特征在于：所述喷淋孔与所述进液口连通的一端高于所述喷淋孔与所述通槽连通的一端。
  6. 根据权利要求5所述的采样针清洗装置，其特征在于：所述池盖上设有环形槽，所述环形槽分别与所述进液口和所述喷淋孔连通，所述喷淋孔的数量为多个，多个喷淋孔环绕池盖周向间隔设置。
  7. 根据权利要求1所述的采样针清洗装置，其特征在于：所述第二流道呈倒锥形，且所述第二流道与所述第一流道对应一端的横截面积等于所述第一流道的横截面积，所述第二流道远离所述第一流道一端的横截面积小于所述第一流道的横截面积。
  8. 根据权利要求1所述的采样针清洗装置，其特征在于：所述第二流道 为柱形状设置，且所述第二流道的横截面积小于所述第一流道的横截面积。
  9. 根据权利要求1所述的采样针清洗装置，其特征在于：所述接头与所述第一流道对应的一端安装有密封环，所述密封环与所述容纳槽的底壁紧密接触。
  10. 根据权利要求1所述的采样针清洗装置，其特征在于：所述接头还设有与所述第二流道连通的排液道，所述接头对应排液道的一端为倒钩部。
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