CN209465048U - A kind of vacuum pump suction equipped with suction pipette head push-off device - Google Patents
A kind of vacuum pump suction equipped with suction pipette head push-off device Download PDFInfo
- Publication number
- CN209465048U CN209465048U CN201821618091.5U CN201821618091U CN209465048U CN 209465048 U CN209465048 U CN 209465048U CN 201821618091 U CN201821618091 U CN 201821618091U CN 209465048 U CN209465048 U CN 209465048U
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- China
- Prior art keywords
- suction
- pipette head
- push
- button
- suction pipette
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Abstract
The utility model discloses a kind of vacuum pump suctions equipped with suction pipette head push-off device, including stainless steel suction pipe, suction pipe can meet 1000ul, 200ul and 10ul suction pipette head, suction pipe extends upwardly to external vacuum-pump line jointing, suction pipe and vacuum-pump line junction form suction nozzle hand-held part, the suction nozzle hand-held part of the utility model is provided with a suction pipette head push-off device, the release button in suction pipette head push-off device is pressed after convenient to use, it quickly releases suction pipette head and replaces suction nozzle, it avoids dismantling suction pipette head using hand, facilitate operation, save experimental period, it reduces and is polluted in operating process, improve conventional efficient, and damping ring is set in releasing button, it avoids malfunctioning, and it can control and release suction nozzle dynamics, it is easy to operate freely.
Description
Technical field
It is specifically a kind of equipped with the true of suction pipette head push-off device the utility model relates to a kind of vacuum pump suction
Empty pump suction.
Background technique:
Vacuum pump is widely used in various fields, and vacuum pump is used for the absorption of experimental waste liquid in the lab, tests people
Member be avoid the cross contamination of sample room from often hollow stainless steel suction pipe being used to use as the various disposable tips of suction nozzle connection, but
Need to change disposable tip after having handled a sample, due to stainless steel suction pipe without automatically release disposable tip device,
Used disposable tip need to be taken out with hand or tweezers, increase sample pollution, people in experimentation and contact toxic waste liquid
Chance and operating time.In the prior art, it is not provided in vacuum pump suction and releases disposable tip device, and moved
It is also fairly simple although occurring the device for releasing disposable tip in liquid device, do not consider that people is releasing disposable inhale
The problem of overexerting, cause to equipment damage when head, and do not account for operate because of malfunction disposable
The problem of suction nozzle push-off device.
Utility model content:
The purpose of this utility model is: providing a kind of vacuum pump suction equipped with suction pipette head push-off device, is needing
When replacing disposable tip, disposable tip is released automatically, and can carry out releasing the dynamic of disposable tip to avoid malfunction
Make, and when carrying out projecting motion to disposable tip, control launch force that can be smooth will not be due to overexerting to equipment
It damages.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of vacuum pump suction equipped with suction pipette head push-off device, including head sucting body, hollow stainless steel suction pipe and
Suction pipette head push-off device is fixedly installed a hollow stainless steel suction pipe in head sucting body, and hollow stainless steel suction pipe lower end is
One staged connector, hollow stainless steel suction pipe upper end are external vacuum pump bend jointing, and staged connector is for connecting one
Secondary property suction pipette head, external vacuum pump bend jointing connect vacuum pump, and head sucting body lower end is connected with suction pipette head
Push-off device, hollow stainless steel suction pipe sequentially pass through head sucting body and suction pipette head push-off device, and suction pipette head releases dress
It sets against disposable suction pipette head, suction pipette head push-off device includes a release button, and pressing releases button and drives liquid relief
Device suction nozzle push-off device is slided along hollow stainless steel suction pipe, and disposable tip is unloaded from staged connector；
Preferably, head sucting body includes suction nozzle portion of the handle, guide rod and piston spring, and guide rod is fixed on suction nozzle portion of the handle
On, piston spring is sheathed on guide rod, suction pipette head push-off device further include push-off device main body, ejector sleeve and release button,
Ejector sleeve is set to push-off device lower body, releases button and is set to push-off device main body upper end, releases to be provided in button and lead
To channel, guide rod is arranged in the guide channel released in button, and release button can be slided along guide rod, release button and release
It is rigid connection between apparatus main body；
Preferably, head sucting body further includes suction nozzle portion of the handle and guide rod, and guide rod is fixed on suction nozzle portion of the handle, is released
It is provided with damping ring in the guide channel of button, under original state, is filled in damping ring positioned at the guide rod released in button, to push away
The movement of button provides a constant resistance out；
Preferably, damping ring is 6 pieces of fan-shaped rubber blocks, and fan-shaped rubber block is distributed in the interior of the guide channel for releasing button
Wall；
Preferably, damping ring internal diameter d is less than the outer diameter of guide rod；
Preferably, the staged connector of hollow stainless steel suction pipe lower end can connect the suction of 1000ul, 200ul or 10ul pipettor
Head.
The utility model has the advantages that: the utility model can be adapted to 1000ul, 200ul and 10ul suction pipette head, lead to
Crossing pressing release button can quickly release it in the case where not contacting disposable suction pipette head, and another piston spring can will push away
Button playbacks out, rear replaceable suction pipette head, reduces the experimental implementation time, avoids sample pollution in experimentation, avoids people
The chance of toxic waste liquid is contacted, and is provided with damping ring in releasing button, so that operator is carrying out release one to suction nozzle
Secondary property suction nozzle operate when, equipment can be damaged to avoid overexerting, meanwhile, can to avoid malfunction operation dismounting
Disposable tip, it is safer.
Detailed description of the invention
Fig. 1 is suction nozzle overall structure diagram；
Fig. 2 is hollow stainless steel suction pipe；
Fig. 3 is the sucker structure schematic diagram for not installing suction pipe；
Fig. 4 is the decomposition diagram of suction pipette head push-off device and head sucting body；
Fig. 5 is the A-A view in Fig. 4.
Appended drawing reference:
1, head sucting body, 2, hollow stainless steel suction pipe, 3, staged connector, 4, external vacuum-pump line jointing, 5,
Suction nozzle hand-held part, 6, suction pipette head push-off device, 7, release button, 8, piston spring, 9, ejector sleeve, 10, guide rod, 11, guiding
Channel, 12, damping ring, 13, push-off device main body.
Specific embodiment
As shown in Figs 1-4, a kind of vacuum pump suction equipped with suction pipette head push-off device, including it is head sucting body 1, hollow
Stainless steel suction pipe 2 and suction pipette head push-off device 6 are fixedly installed a hollow stainless steel suction pipe 2 in head sucting body 1, hollow
2 lower end of stainless steel suction pipe is a staged connector 3, and hollow 2 upper end of stainless steel suction pipe is external vacuum pump bend jointing 4,
Staged connector 3 connects vacuum pump, suction nozzle master for connecting disposable suction pipette head, external vacuum pump bend jointing 4
1 lower end of body is connected with suction pipette head push-off device 6, and hollow stainless steel suction pipe 2 sequentially passes through head sucting body 1 and suction pipette head
Push-off device 6, suction pipette head push-off device 6 are pushed away against disposable suction pipette head, suction pipette head push-off device 6 including one
Button 7 out, when needing replacing disposable tip, pressing release button 7, thus drive suction pipette head push-off device 6 along
Hollow stainless steel suction pipe 2 slides, and disposable tip is unloaded from staged connector 3.
Preferably, head sucting body 1 includes suction nozzle portion of the handle 5, guide rod 10 and piston spring 8, and guide rod 10 is fixed on suction nozzle
On portion of the handle 5, piston spring 8 is sheathed on guide rod 10, suction pipette head push-off device 6 further include push-off device main body 13,
Ejector sleeve 9 and release button 7, ejector sleeve 9 are set to 13 lower end of push-off device main body, release button and are set in push-off device main body 13
End is released and is provided with guide channel 11 in button 7, and guide rod 10 is arranged in the guide channel 11 released in button 7, and releases button
7 can slide along guide rod 10, release and therefore release button by pressing for rigid connection between button 7 and push-off device main body 13
7 can drive ejector sleeve 9 to slide up and down along hollow stainless steel suction pipe, and spring 8 provides reset against button 7 is released, to release button 7
Elastic force, operator stop pressing release button 7 after, enable release button 7 reset, release button 7 reset it is same
When drive ejector sleeve 9 reset so that staged connector 3 can install another new disposable tip.
Preferably, it releases and is provided with damping ring 12 in the guide channel 11 of button 7, under original state, be located at and release button 7
Interior guide rod 10 is filled in damping ring 12, using the frictional force between damping ring 12 and guide rod 10, is mentioned to release the movement of button 7
For a constant resistance, avoids operator when to the progress pressing operation of button 7 is released, equipment is made due to overexerting
At damage, meanwhile, resistance can also to avoid as to release the slight pressing of button and caused by maloperation.
Preferably, as shown in figure 5, damping ring 12 is that 6 pieces of fan-shaped rubber blocks or sheet rubber, fan-shaped rubber block or sheet rubber are equal
It is distributed in the inner wall of guide channel 11.
Preferably, damping ring 12 is distributed with two layers.
Preferably, 12 internal diameter d of damping ring is less than the outer diameter of guide rod 10, therefore, after guide rod 10 fills in damping ring 12, damping
Ring 12 deforms, and has an extruding force to guide rod 10, so that the sliding for guide rod 10 provides a constant resistance.
Preferably, for piston spring 8 after operator does not press and releases button, elastic force can overcome damping ring 12
Resistance, so that releasing button 7 can automatically reset.
Preferably, hollow 2 lower end of stainless steel suction pipe described in the present embodiment be a staged connector 3 can connect 1000ul,
200ul and 10ul suction pipette head.
The experimental implementation time can be reduced in experimentation, avoided sample pollution in experimentation, avoided people's contact toxic useless
The chance of liquid.
Above embodiments are merely to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that；It still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
Modify or replace, can not make corresponding technical solution essence be detached from various embodiments of the utility model technical solution spirit and
Range.
Claims (6)
1. a kind of vacuum pump suction equipped with suction pipette head push-off device, including head sucting body (1), hollow stainless steel suction pipe
(2) and suction pipette head push-off device (6), be fixedly installed a hollow stainless steel suction pipe (2) in head sucting body (1), it is hollow not
Rust steel suction pipe (2) lower end is a staged connector (3), and hollow stainless steel suction pipe (2) upper end is that external vacuum pump bend connects
Head (4), staged connector (3) connect vacuum for connecting disposable suction pipette head, external vacuum pump bend jointing (4)
Pump, head sucting body (1) lower end are connected with suction pipette head push-off device (6), and hollow stainless steel suction pipe (2) sequentially passes through suction nozzle master
Body (1) and suction pipette head push-off device (6), suction pipette head push-off device (6) is against disposable suction pipette head, feature
Be: suction pipette head push-off device (6) includes release button (7), and pressing is released button (7) driving suction pipette head and released
Device (6) is slided along hollow stainless steel suction pipe (2), and disposable tip is unloaded from staged connector (3).
2. a kind of vacuum pump suction equipped with suction pipette head push-off device according to claim 1, it is characterised in that: inhale
Head main body (1) includes suction nozzle portion of the handle (5), guide rod (10) and piston spring (8), and guide rod (10) is fixed on suction nozzle portion of the handle
(5) on, piston spring (8) is sheathed on guide rod (10), and suction pipette head push-off device (6) further includes push-off device main body
(13), ejector sleeve (9) and release button (7), ejector sleeve (9) are set to push-off device main body (13) lower end, and release button, which is set to, to be pushed away
Apparatus main body (13) upper end out is released and is provided with guide channel (11) in button (7), and guide rod (10), which is arranged in, releases button (7)
Interior guide channel (11), and release button (7) can be slided along guide rod (10), release button (7) and push-off device main body
It (13) is rigid connection between.
3. a kind of vacuum pump suction equipped with suction pipette head push-off device according to claim 1 or 2, feature exist
In: head sucting body further includes suction nozzle portion of the handle (5) and guide rod (10), and guide rod (10) is fixed on suction nozzle portion of the handle (5), pushes away
It is provided with damping ring (12) in the guide channel (11) of button (7) out, under original state, is located at the guide rod released in button (7)
(10) it fills in damping ring (12), provides a constant resistance to release the movement of button (7).
4. a kind of vacuum pump suction equipped with suction pipette head push-off device according to claim 3, it is characterised in that: resistance
Buddhist nun's ring (12) is 6 pieces of fan-shaped rubber blocks, and fan-shaped rubber block is distributed in the inner wall for releasing the guide channel (11) of button (7).
5. a kind of vacuum pump suction equipped with suction pipette head push-off device according to claim 4, it is characterised in that: resistance
Buddhist nun's ring (12) internal diameter d is less than the outer diameter of guide rod (10).
6. a kind of vacuum pump suction equipped with suction pipette head push-off device according to claim 1, it is characterised in that: institute
The staged connector (3) for hollow stainless steel suction pipe (2) lower end stated can connect 1000ul, 200ul or 10ul suction pipette head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821618091.5U CN209465048U (en) | 2018-10-03 | 2018-10-03 | A kind of vacuum pump suction equipped with suction pipette head push-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821618091.5U CN209465048U (en) | 2018-10-03 | 2018-10-03 | A kind of vacuum pump suction equipped with suction pipette head push-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209465048U true CN209465048U (en) | 2019-10-08 |
Family
ID=68086970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821618091.5U Expired - Fee Related CN209465048U (en) | 2018-10-03 | 2018-10-03 | A kind of vacuum pump suction equipped with suction pipette head push-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209465048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787851A (en) * | 2019-10-25 | 2020-02-14 | 浙江大学 | Multi-channel liquid drop quantitative measuring device and method based on pressure driving |
-
2018
- 2018-10-03 CN CN201821618091.5U patent/CN209465048U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787851A (en) * | 2019-10-25 | 2020-02-14 | 浙江大学 | Multi-channel liquid drop quantitative measuring device and method based on pressure driving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191008 |