CN104190488B - A kind of sealing anti-return test tube cap - Google Patents
A kind of sealing anti-return test tube cap Download PDFInfo
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- CN104190488B CN104190488B CN201410396584.9A CN201410396584A CN104190488B CN 104190488 B CN104190488 B CN 104190488B CN 201410396584 A CN201410396584 A CN 201410396584A CN 104190488 B CN104190488 B CN 104190488B
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- test tube
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Abstract
The invention discloses a kind of sealing anti-return test tube cap, comprise top cover and cylindric lid, the size shape of wherein said lid and the test tube mouth of test tube match, through hole is had in described top cover, described top cover lower end is disposed with miillpore filter circle and check-valves circle, the middle of wherein said check-valves circle be provided with towards under duckbilled valve port, the lower end of described duckbilled valve port is collapsed into flat mouth to centre, and described top cover and check-valves circle have steam vent in corresponding position, position; This test tube cap is by rational structural improvement, particularly pass through the hermetically-sealed construction of duckbilled mechanism and miillpore filter circle composition, the sealing of test tube can be ensured, also test tube is facilitated to add material, and test tube inside and outside air pressure balance can also be kept to avoid the cause due to draught head to cause leaking or refluxing of material or bacterium, in bio-safety application aspect, there is good use value.
Description
Technical field
The present invention relates to laboratory paraphernalia field, particularly a kind of test tube cap with anti-return effect.
Background technology
Test tube is the common apparatus in laboratory, and be mainly used in holding solid, the liquid even glass container of bacterium, therefore the sealing of test tube is an item that must be noted that.The sealing of usual test tube mainly relies on test tube cap to realize, tight to test tube sealing by safe and reliable test tube seal cover, can prevent the contaminated or harmful bacteria of material from revealing.But the problem be at this time faced with again as added material in whither test tube, common way opens test tube cap when needed to add material toward test tube, can cause outside Tube contents spatter once open test tube cap misoperation.For this problem, A designer attempts by being with the test tube cap of rubber sleeve to solve, and syringe so just can be used to pierce through the mode of rubber sleeve by injection toward test tube adding liquid.But find when reality uses, multiple injection adds the problem that material can exist in vitro outer draught head, in vitro air pressure is likely caused to be greater than atmospheric pressure, test tube cap is caused to be ejected, in addition rubber sleeve repeatedly pierces through rear sealing and also can reduce, and Tube contents or bacterium still have the outer possibility draining to the external world or be back to syringe.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of test tube cap with sealing Anti-backflow structure.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of sealing anti-return test tube cap, comprise top cover and cylindric lid, the size shape of wherein said lid and the test tube mouth of test tube match, through hole is had in described top cover, described top cover lower end is disposed with miillpore filter circle and check-valves circle, the middle of wherein said check-valves circle be provided with towards under duckbilled valve port, the lower end of described duckbilled valve port is collapsed into flat mouth to centre, described check-valves circle and duckbilled valve port one-body molded, described top cover and check-valves circle have steam vent in corresponding position, position.
As a preference, the through hole of described top cover is provided with stiffening ring, and the lower end of wherein said stiffening ring is protruded relative to top cover lower surface.
As a preference, described miillpore filter circle is placed in the space place between stiffening ring lower end and lid.
As a preference, the connection edge between described check-valves circle upper end and duckbilled valve port has locating slot, and the stiffening ring lower end of the position of described locating slot, size and top cover matches.
As a preference, described check-valves circle lower end is positioned at duckbill valve mouth both sides place and is respectively arranged with boss.
The invention has the beneficial effects as follows: this test tube cap is by rational structural improvement, particularly pass through the hermetically-sealed construction of duckbilled mechanism and miillpore filter circle composition, the sealing of test tube can be ensured, also test tube is facilitated to add material, and test tube inside and outside air pressure balance can also be kept to avoid the cause due to draught head to cause leaking or refluxing of material or bacterium, in bio-safety application aspect, there is good use value; In addition the structure of this test tube cap is both simple also enough firm, and production and application is all very convenient, is conducive to applying of technology.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is stereogram of the present invention;
Fig. 2 is partial sectional view of the present invention;
Fig. 3 is STRUCTURE DECOMPOSITION figure of the present invention.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of sealing anti-return test tube cap, comprise top cover 1 and cylindric lid 2, the size shape of wherein said lid 2 and the test tube mouth of test tube 3 match, top cover 1 and lid 2 are test tube cap main body, and general plastics or other softer material of adopting is made.Through hole 11 is had in described top cover 1, described top cover 1 lower end is disposed with miillpore filter circle 4 and check-valves circle 5, the middle of wherein said check-valves circle 5 be provided with towards under duckbilled valve port 6, the lower end of described duckbilled valve port 6 is collapsed into flat mouth 61 to centre, wherein the duckbilled mechanism of check-valves circle 5 and the one-body molded composition of duckbilled valve port 6.And duckbilled mechanism particularly duckbilled valve port 6 generally adopt rubber to make, to ensure that flat mouth 61 closes up, Tube contents cannot be refluxed or leak.Miillpore filter circle 4 generally adopts micro-pore diameter to be the conventional filter membrane such as 0.2 or 0.45 micron, can breathe freely and also can intercept large molecule.The duckbilled mechanism that check-valves circle 5 and duckbilled valve port 6 form ensures that Tube contents cannot flow backwards.Described top cover 1 and check-valves circle 5 have steam vent 7 in corresponding position, position, and steam vent 7 coordinates miillpore filter circle 4 not only to keep test tube inside and outside air pressure balance but also ensure that test tube seals.
Through hole 11 place of described top cover 1 is provided with stiffening ring 8, the lower end of wherein said stiffening ring 8 is protruded relative to top cover 1 lower surface, make through hole 11 more durable, also can as the location structure of miillpore filter circle 4 and check-valves circle 5, miillpore filter circle 4 and check-valves circle 5 are installed more firm, avoid leaking because install bad appearance.Described miillpore filter circle 4 is placed in the space place between stiffening ring 8 lower end and lid 2.Connection edge between described check-valves circle 5 upper end and duckbilled valve port 6 has locating slot 51, and stiffening ring 8 lower end of the position of described locating slot 51, size and top cover 1 matches.
Described check-valves circle 5 lower end is positioned at duckbill valve mouth 6 both sides place and is respectively arranged with boss 62, makes duckbilled valve port 6 more firmly durable, avoid duckbilled valve port 6 in use between long rear appearance leak.
When real work, when needs add material toward test tube 3, flat mouth 61 place syringe being inserted duckbilled valve port 6 is only needed to inject.When inner without pressure so that in vitro air pressure is of short duration be greater than external atmosphere pressure, the flat mouth 61 of duckbilled valve port 6 closes up under elastic reaction own or in vitro pressure effect, and the exhaust gear of the steam vent 7 of the steam vent 7 of top cover 1, miillpore filter circle 4 and check-valves circle 5 composition had both kept test tube 3 inside and outside air pressure balance to ensure that test tube 3 seals.
According to above-mentioned principle, the present invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to detailed description of the invention disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.
Through facts have proved, the duckbilled mechanism that the present invention consists of check-valves circle 5 and duckbilled valve port 6, coordinate the hermetically-sealed construction that miillpore filter circle 4 forms, the sealing of test tube 3 can be ensured, also facilitate test tube 3 to add material, and test tube 3 inside and outside air pressure balance can also be kept to avoid the cause due to draught head to cause leaking or refluxing of material or bacterium.
Claims (5)
1. a sealing anti-return test tube cap, comprise top cover (1) and cylindric lid (2), the size shape of wherein said lid (2) and the test tube mouth of test tube (3) match, it is characterized in that: in described top cover (1), have through hole (11), described top cover (1) lower end is disposed with miillpore filter circle (4) and check-valves circle (5), the middle of wherein said check-valves circle (5) be provided with towards under duckbilled valve port (6), the lower end of described duckbilled valve port (6) is collapsed into flat mouth (61) to centre, described check-valves circle (5) and duckbilled valve port (6) one-body molded, described top cover (1) and check-valves circle (5) have steam vent (7) in corresponding position, position.
2. one sealing anti-return test tube cap according to claim 1, it is characterized in that: through hole (11) place of described top cover (1) is provided with stiffening ring (8), the lower end of wherein said stiffening ring (8) is protruded relative to top cover (1) lower surface.
3. one sealing anti-return test tube cap according to claim 2, is characterized in that: described miillpore filter circle (4) is placed in the space place between stiffening ring (8) lower end and lid (2).
4. one sealing anti-return test tube cap according to claim 2, it is characterized in that: the connection edge between described check-valves circle (5) upper end and duckbilled valve port (6) has locating slot (51), stiffening ring (8) lower end of the position of described locating slot (51), size and top cover (1) matches.
5. one sealing anti-return test tube cap according to claim 1, is characterized in that: described check-valves circle (5) lower end is positioned at duckbill valve mouth (6) both sides place and is respectively arranged with boss (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396584.9A CN104190488B (en) | 2014-08-13 | 2014-08-13 | A kind of sealing anti-return test tube cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410396584.9A CN104190488B (en) | 2014-08-13 | 2014-08-13 | A kind of sealing anti-return test tube cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104190488A CN104190488A (en) | 2014-12-10 |
| CN104190488B true CN104190488B (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410396584.9A Active CN104190488B (en) | 2014-08-13 | 2014-08-13 | A kind of sealing anti-return test tube cap |
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| Country | Link |
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| CN (1) | CN104190488B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104877904B (en) * | 2015-04-30 | 2018-05-15 | 广东体必康生物科技有限公司 | A kind of bacterium disperses calculating instrument |
| CN106475162A (en) * | 2016-12-20 | 2017-03-08 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | Solution delivery safety lid and reagent bottle |
| CN208193123U (en) * | 2017-07-04 | 2018-12-07 | 无锡市凯顺医疗器械制造有限公司 | A kind of leakage barriers and test tube and the fit structure for taking liquid part |
| US10663069B2 (en) | 2017-11-30 | 2020-05-26 | Kohler Co. | Fuel cap with duck bill valve |
| CN114279798B (en) * | 2021-04-25 | 2024-04-02 | 福州安林生物科技有限公司 | Full-automatic immunohistochemical staining instrument and staining method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080175A (en) * | 1977-04-19 | 1978-03-21 | Beckman Instruments, Inc. | Internally activated sealing centrifuge test tube cap assembly |
| US4134512A (en) * | 1977-06-08 | 1979-01-16 | Becton, Dickinson And Company | One-way evacuated tube stopper |
| CN2631982Y (en) * | 2003-07-08 | 2004-08-11 | 潘明生 | Sealed beverage cap for eliminating negative pressure |
| CN103025438A (en) * | 2010-08-06 | 2013-04-03 | 荷兰联合利华有限公司 | Dosing cap for container |
| CN103765073A (en) * | 2011-08-29 | 2014-04-30 | 利基-博克斯公司 | Aseptic duckbill flip-cap fitment for a collapsible container |
-
2014
- 2014-08-13 CN CN201410396584.9A patent/CN104190488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080175A (en) * | 1977-04-19 | 1978-03-21 | Beckman Instruments, Inc. | Internally activated sealing centrifuge test tube cap assembly |
| US4134512A (en) * | 1977-06-08 | 1979-01-16 | Becton, Dickinson And Company | One-way evacuated tube stopper |
| CN2631982Y (en) * | 2003-07-08 | 2004-08-11 | 潘明生 | Sealed beverage cap for eliminating negative pressure |
| CN103025438A (en) * | 2010-08-06 | 2013-04-03 | 荷兰联合利华有限公司 | Dosing cap for container |
| CN103765073A (en) * | 2011-08-29 | 2014-04-30 | 利基-博克斯公司 | Aseptic duckbill flip-cap fitment for a collapsible container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104190488A (en) | 2014-12-10 |
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Effective date of registration: 20160111 Address after: 528000 Guangdong Province, Foshan city Chancheng District ancient road No. 70 Foshan high tech Zone Science and Technology Industrial Park C block 101, 102, 108 Patentee after: Guangdong skyWork Biotechnology Co. Ltd. Address before: 1 No. 528000 Guangdong city of Foshan province Foshan City Hing Road Patentee before: GUANGDONG TIBIKANG BIOLOGICAL SCIENCE & TECHNOLOGY CO., LTD. |