CN201366344Y - 一种带调液吸头的移液管 - Google Patents

一种带调液吸头的移液管 Download PDF

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CN201366344Y
CN201366344Y CNU2009200784615U CN200920078461U CN201366344Y CN 201366344 Y CN201366344 Y CN 201366344Y CN U2009200784615 U CNU2009200784615 U CN U2009200784615U CN 200920078461 U CN200920078461 U CN 200920078461U CN 201366344 Y CN201366344 Y CN 201366344Y
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pipette
liquid
bulb
rubber
liquid conditioning
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何小科
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Abstract

一种带调液吸头的移液管,属实验用品移液管,在移液管上端按其容积配套一个吸耳球,在吸耳球颈部内设有带调液柱的弹簧片,调液柱从吸耳球颈部前端的孔穿出伸于其外,移液工作时,手捏吸耳球将液体吸入到刻度线上后,手指轻压调液柱,空气进入,液面下降到刻度位后放开手指即可,操作方便,吸液、移液均不会失败重来,方便清洗。

Description

一种带调液吸头的移液管
一、技术领域
一种带调液吸头的移液管属教学实验用品,涉及移液管,特别涉及带调液吸头的移液管的结构。
二、背景技术
化学实验中所用的移液管,均为一根带刻度的玻管,移液操作时,先用吸耳球吸液,再用大姆指按压住管上口,动作稍慢则失败重来,调液则是放开大姆指将空气放入而使液面下降,稍不注意失败重来,移动时一但大姆指松动,则失败重来,操作很麻烦,清洗要配吸耳球,很不方便。
三、发明内容
本实用新型是发明一种不用大姆指压而用吸头吸液及调液开关调液的移液管。
1、技术方案
将适当大小的吸耳球直接配套在移液管上管口用于吸液,在管口与吸耳球颈部间夹住一小片薄弹簧片后段,弹簧片前段带一短圆柱状调液柱,将调液柱从吸耳球前端比调液柱直径稍大的孔中穿出,当需调液时,用手指压调液柱,空气进入,移液管中液面下降,调准液面后松手,可任意移动而不发生液面下降而失败重来,免去吸耳球吸液后换大手指压液调液面。
2、有益效果
操作方便迅速。
四、附图说明
图1为一种带调液吸头的移液管简图。
图1中:移液管1  吸耳球2  弹簧片3  调液柱4  球部5  颈部6
五、具体实施方式
采一条前段φ10毫米,后段5×5毫米的薄弹簧片3,其前段圆心处固定一根φ4毫米、长10毫米的短圆柱作为调液柱4,采一个容积稍大于所配移液管1、颈部6长20毫米的吸耳球2,在其接近球部5的颈部6用打孔器打一φ6毫米孔,将调液柱4从颈部6内穿出孔中,弹簧片3后段置于吸耳球颈部6口端方向,将吸耳球颈部6套在移液管1的上口,使吸耳球颈部6将弹簧片3后段压于移液管1管前部,而前端伸在移液管1上口外即可。

Claims (1)

1、一种带调液吸头的移液管,其特点是移液管(1)上端管口配吸耳球(2),吸耳球(2)颈部(6)内与移液管(1)上端管口间夹住薄弹簧片(3)后段,弹簧片(3)前段有一短圆柱状调液柱(4),调液柱(4)从吸耳球颈部(6)前端比调液柱直径稍大的孔中穿出。
CNU2009200784615U 2009-01-06 2009-01-06 一种带调液吸头的移液管 Expired - Fee Related CN201366344Y (zh)

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CNU2009200784615U CN201366344Y (zh) 2009-01-06 2009-01-06 一种带调液吸头的移液管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009200784615U CN201366344Y (zh) 2009-01-06 2009-01-06 一种带调液吸头的移液管

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CN201366344Y true CN201366344Y (zh) 2009-12-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104826680A (zh) * 2015-04-24 2015-08-12 广西大学 移液管

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104826680A (zh) * 2015-04-24 2015-08-12 广西大学 移液管

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Granted publication date: 20091223

Termination date: 20110106