CN104258916B - Disposable liquid transfer gun head - Google Patents
Disposable liquid transfer gun head Download PDFInfo
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- CN104258916B CN104258916B CN201410544145.8A CN201410544145A CN104258916B CN 104258916 B CN104258916 B CN 104258916B CN 201410544145 A CN201410544145 A CN 201410544145A CN 104258916 B CN104258916 B CN 104258916B
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- liquid
- transfering gun
- active region
- circle
- filter core
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Abstract
The invention belongs to experiment equipment field, relate to a kind of disposable liquid transfer gun head, comprise rifle head body, described rifle head body comprises and supremely comprises suction nozzle district, quantitative storage liquid zone, liquid-transfering gun active region down, vacant district is provided with between described quantitative storage liquid zone and described liquid-transfering gun active region, described vacant district is provided with filter core, the lower inner surface of described liquid-transfering gun active region is provided with the first encryption circle and the second encryption circle of arranging up and down, and described second encryption circle is positioned on the joint face in described liquid-transfering gun active region and described vacant district.Accurately, liquid-transfering gun can more insert in rifle head labour-saving, and conveniently unloads for good airproof performance of the present invention, imbibition; Arrange filter core, liquid can not suck in liquid-transfering gun, and filter core also can not affect the result of smooth imbibition and quantitative liquid suction.
Description
Technical field
The invention belongs to experiment equipment field, relate to one and move liquid equipment, specifically a kind of disposable liquid transfer gun head.
Background technology
Liquid transfer gun head is at the very large a kind of consumptive material of the field use amount such as medical, biological, chemical, coordinates liquid-transfering gun to use, plays the effect quantitatively measuring liquid.But the connection of existing liquid transfer gun head and liquid-transfering gun exists certain problem, such as: 1. sealing is good not, occurs leakage, poor accuracy affects experimental result; 2. need to use certain dynamics closely could block jail with liquid-transfering gun, with hand pin liquid transfer gun head on liquid-transfering gun with strength by or liquid-transfering gun is put into rifle head, stamp with strength, all can cause the heavy wear of liquid-transfering gun, and the former also can cause cross pollution; 3., when unloading liquid transfer gun head, only rely on the thrust of liquid-transfering gun not unload, need by under another hand-lifting, one is cumbersome, and two come also can cause cross pollution.These problems have to be solved.For this reason, the patent No. is that the Chinese patent of CN203108556 discloses a kind of bayonet type liquid transfer gun head on August 7th, 2013, and head comprises liquid transfer gun head body, is provided with at least one projection in the upper end sidewall of liquid transfer gun head, thick bottom the top thin of described projection.This bayonet type liquid transfer gun head structure is simple, easy to use, to liquid-transfering gun without wearing and tearing.But though this liquid transfer gun head solves liquid-transfering gun, and difficulty is inserted, the problem pulled up of difficulty, but can sealing be affected due to projection, still there will be leakage problem, and during imbibition, overexert, by draws fluid liquid-transfering gun, cross pollution can be caused.
Summary of the invention
In order to solve existing liquid transfer gun head good airproof performance and easily be connected with between liquid-transfering gun, easily unload and be difficult to problem that is satisfactory to both parties and draws fluid liquid-transfering gun, the present invention improves a kind of disposable liquid transfer gun head, good airproof performance, there will not be leakage, and liquid-transfering gun very easily inserts rifle head and easily unloads, liquid can not enter liquid-transfering gun again.
In order to achieve the above object, the present invention adopts following technical scheme: disposable liquid transfer gun head, comprise rifle head body, described rifle head body comprises suction nozzle district, quantitative storage liquid zone, liquid-transfering gun active region from the bottom to top, vacant district is provided with between described quantitative storage liquid zone and described liquid-transfering gun active region, described vacant district is provided with filter core, the lower inner surface of described liquid-transfering gun active region is provided with the first encryption circle and the second encryption circle of arranging up and down, and described second encryption circle is positioned on the joint face in described liquid-transfering gun active region and described vacant district.
This technical scheme, by two encryption circles, plays and strengthens the effect of sealing, and owing to being sealing ring, and the contact between liquid-transfering gun and liquid transfer gun head is not sidewall completely, unloads more laborsaving; By arranging vacant district, liquid can be slowed down and pour in liquid-transfering gun, filter core is set further, more effectively preventing liquid from entering liquid-transfering gun, avoid cross pollution.
Preferred as technique scheme, the bottom in described vacant district is provided with down a backing ring, and the lower surface of described filter core is supported to a described lower backing ring.
Due to liquid transfer gun head draw the liquid of heap(ed) capacity time, the most high liquid level (HLL) of liquid can arrive the peak of quantitative storage liquid zone, a backing ring is set down, and the lower surface of filter core is supported to a described lower backing ring be in order to liquid under preventing heap(ed) capacity situation contacts with filter core too early, adsorbed by filter core, impact moves the result of liquid.
Preferred as technique scheme, the top in described vacant district is provided with resists circle, and the upper surface of described filter core is supported to described upper resistances circle, described upper resistance enclose and described second encrypt enclose between leave vacant section.
When the mouth end of liquid-transfering gun to contact the words of tension with filter core, the absorption of liquid can be affected, even there is error, affect experimental result, arrange and resist circle, and upper resistances enclose and second encrypt enclose between arrange vacant section, both can stablize fixing filter core, make again the mouth end of liquid-transfering gun tightly can not prop up filter core, ensure the smooth absorption of liquid.
Preferred as technique scheme, the internal diameter of described liquid-transfering gun active region increases from bottom to up gradually.The close contact between liquid-transfering gun and rifle head can be ensured, facilitate again the insertion between liquid-transfering gun and rifle head and unload.
Preferred as technique scheme, the inwall of described liquid-transfering gun active region be provided with at least one axially in fin.Stablize the connection between liquid-transfering gun and rifle head, ensure sealing.
Preferred as technique scheme, in described axis, the thickness of fin reduces from bottom to up gradually.Ensure that rifle head can facilitate to unload from liquid-transfering gun smoothly.
Preferred as technique scheme, the outer wall of described rifle head body is provided with at least two axially outer fins be oppositely arranged, being convenient to liquid transfer gun head is arranged in rifle head box, the lower surface of the outer fin of described axis is positioned on the upper surface of described quantitative storage liquid zone, the most high liquid level (HLL) at liquid place when axially the lower surface of outer fin is just liquid transfer gun head heap(ed) capacity, whether convenient observation has comparatively big error.
Preferred as technique scheme, the thickness of the outer fin of described axis reduces from bottom to up gradually.
By implementing technique scheme, accurately, liquid-transfering gun can more insert in rifle head labour-saving, and conveniently unloads for good airproof performance of the present invention, imbibition; Arrange filter core, liquid can not suck in liquid-transfering gun, and filter core also can not affect the result of smooth imbibition and quantitative liquid suction.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of one embodiment of the invention.
In figure, 11-suction nozzle district; 12-quantitative storage liquid zone; 13-liquid-transfering gun active region; 131-first encrypts circle; 132-second encrypts circle; 133-is interior fin axially; The vacant district of 14-; The lower backing ring of 141-; 142-resists circle; Vacant section of 143-; 15-filter core; 16-is outer fin axially.
Detailed description of the invention
Below in conjunction with accompanying drawing, by specific embodiment, the invention will be further described.
Disposable liquid transfer gun head as shown in Figure 1, comprise the rifle head body comprising suction nozzle district 11, quantitative storage liquid zone 12, vacant district 14, liquid-transfering gun active region 13 composition from the bottom to top, the internal diameter of rifle head body increases from bottom to up gradually; Bottom, vacant district 14 is provided with down backing ring 141, and top is provided with resistance circle 142, between be provided with filter core 15, the upper and lower end face of filter core 15 supports supreme resistance circle 142 and lower backing ring 141 respectively; Upper resistance circle 142 and second is encrypted between circle 132 and is left vacant section 143, both can stablize fixing filter core, and make again the mouth end of liquid-transfering gun tightly can not prop up filter core, and ensure the smooth absorption of liquid.The lower inner surface of liquid-transfering gun active region 13 is provided with first encryption circle 131 and the second encryption circle 132 of arranging up and down, and described second encryption circle 132 is positioned at liquid-transfering gun active region 13 with on the joint face in vacant district 14.The inwall of liquid-transfering gun active region 13 is provided with two axially interior fins 133 be oppositely arranged, and outer wall is provided with two axially outer fins 16 be oppositely arranged, and thickness all reduces from bottom to up gradually; Axially the lower surface of outer fin 16 is positioned on the upper surface of quantitative storage liquid zone 12, and like this, when axially the lower surface of outer fin 16 is just liquid transfer gun head heap(ed) capacity, the most high liquid level (HLL) at liquid place, facilitates observation whether to have comparatively big error.
Claims (3)
1. disposable liquid transfer gun head, comprise rifle head body, it is characterized in that: described rifle head body comprises suction nozzle district (11) from the bottom to top, quantitative storage liquid zone (12), liquid-transfering gun active region (13), vacant district (14) is provided with between described quantitative storage liquid zone (12) and described liquid-transfering gun active region (13), described vacant district (14) is provided with filter core (15), the lower inner surface of described liquid-transfering gun active region (13) is provided with first encryption circle (131) and the second encryption circle (132) of arranging up and down, described second encryption circle (132) is positioned at described liquid-transfering gun active region (13) with on the joint face of described vacant district (14), the bottom of described vacant district (14) is provided with down a backing ring (141), the lower surface of described filter core (15) is supported to a described lower backing ring (141), the top of described vacant district (14) is provided with resists circle (142), the upper surface of described filter core (15) is supported to described upper resistance circle (142), described upper resistance circle (142) and described second is encrypted to enclose between (132) and is left vacant section (143), the internal diameter of described liquid-transfering gun active region (13) increases from bottom to up gradually, the inwall of described liquid-transfering gun active region (13) is provided with at least one axial interior fin (133), and in described axis, the thickness of fin (133) reduces from bottom to up gradually.
2. disposable liquid transfer gun head according to claim 1, it is characterized in that: the outer wall of described rifle head body is provided with at least two axially outer fins (16) be oppositely arranged, and the lower surface of the outer fin (16) of described axis is positioned on the upper surface of described quantitative storage liquid zone (12).
3. disposable liquid transfer gun head according to claim 2, is characterized in that: the thickness of the outer fin (16) of described axis reduces from bottom to up gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544145.8A CN104258916B (en) | 2014-10-15 | 2014-10-15 | Disposable liquid transfer gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544145.8A CN104258916B (en) | 2014-10-15 | 2014-10-15 | Disposable liquid transfer gun head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104258916A CN104258916A (en) | 2015-01-07 |
| CN104258916B true CN104258916B (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410544145.8A Active CN104258916B (en) | 2014-10-15 | 2014-10-15 | Disposable liquid transfer gun head |
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| Country | Link |
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| CN (1) | CN104258916B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107233944B (en) * | 2017-08-01 | 2019-09-03 | 南京公汇科技有限公司 | A kind of liquid transfer gun head |
| CN109499637A (en) * | 2019-01-27 | 2019-03-22 | 刘晓 | A kind of bent angle liquid relief plastics pipette tips |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9260744B2 (en) * | 2005-09-05 | 2016-02-16 | Universal Bio Research Co., Ltd. | Various-substance holder, various-substance holder treating apparatus, and various-substance holder treating method |
| US8524170B2 (en) * | 2011-02-22 | 2013-09-03 | Rainin Instrument, Llc | Pipette and sealing tip |
| CN102941132A (en) * | 2012-10-30 | 2013-02-27 | 无锡耐思生物科技有限公司 | Pipette tip structure |
| CN102921482A (en) * | 2012-11-06 | 2013-02-13 | 无锡耐思生物科技有限公司 | Pipetting gun head structure with filter elements |
| CN203711059U (en) * | 2014-01-25 | 2014-07-16 | 四川农业大学 | Quantitative micropipettor sucker |
| CN204093472U (en) * | 2014-10-15 | 2015-01-14 | 浙江硕华医用塑料有限公司 | Disposable liquid transfer gun head |
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- 2014-10-15 CN CN201410544145.8A patent/CN104258916B/en active Active
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| CN104258916A (en) | 2015-01-07 |
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Address after: 313220 Deqing County Province, Huzhou City, the town of bell hill road, No., No. 148 Patentee after: Zhejiang Sorfa Life Science Research Co., Ltd. Address before: 313220 Deqing County Province, Huzhou City, the town of bell hill road, No., No. 148 Patentee before: Zhejiang Sorfa Medical Plastic Co.,Ltd. |