CN207685304U - A kind of vacuum extractor liquid-transfering device - Google Patents
A kind of vacuum extractor liquid-transfering device Download PDFInfo
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- CN207685304U CN207685304U CN201721733409.XU CN201721733409U CN207685304U CN 207685304 U CN207685304 U CN 207685304U CN 201721733409 U CN201721733409 U CN 201721733409U CN 207685304 U CN207685304 U CN 207685304U
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- guide rod
- core pipe
- chamber
- pushing arm
- pipe
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Abstract
The utility model belongs to laboratory apparatus technical field, and in particular to a kind of vacuum extractor liquid-transfering device.The utility model mainly solves cumbersome technical process of the existing technology, complicated for operation, suction nozzle direction and enters liquid depth technical problem not easy to control.The technical solution adopted in the utility model is：A kind of vacuum extractor liquid-transfering device, including shell and core pipe, wherein：Further include referring to rhampotheca pipe, pushing arm, guide rod, finger pressure button, upper locking positioning nut and lower locking nut；The finger rhampotheca pipe is mounted in shell upper end, and finger rhampotheca pipe guide rod chamber is made to be located above guide rod chamber；The pushing arm is located in pushing arm installation cavity, and pushing arm guide rod chamber is made to be located at below guide rod chamber；The circular cylindrical cavity for the core pipe chamber and pushing arm that the core pipe sequentially passes through shell from top to bottom extends downwardly, and the positioning wedged block in the middle part of core pipe is made to be in contact with the limited bayonet of core pipe chamber lower end.The utility model has many advantages, such as easy to operate, suction nozzle direction and to enter liquid depth controllable.
Description
Technical field
The utility model belongs to laboratory apparatus technical field, and in particular to a kind of vacuum extractor liquid-transfering device.
Background technology
In cell culture experiments, it is often used Electric negative pressure aspirator and suction pipette head and the waste liquid in cell plates is carried out
It removes.There is no dedicated attachment device between aspirator and suction nozzle, a suction nozzle is typically inserted into Electric negative pressure aspirator sebific duct
One end is inserted into as holding tool, then by another suction nozzle on this suction nozzle, and front end is placed in waste liquid, is given up by suction function
Liquid removes.The prior art has the following defects：In cell culture experiments, between different plate holes, different sample treatments, waste liquid
Absorption is required for replacing suction nozzle, and two hand operations of needs of choosing of suction nozzle are comparatively laborious；Since suction nozzle is shorter, it is difficult to control and inhales
Head direction and enter liquid depth, when operation is easy that hand is made to touch waste liquid.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts provides a kind of vacuum extractor liquid-transfering device,
It solves cumbersome technical process of the existing technology, complicated for operation, suction nozzle direction and enters liquid depth technical problem not easy to control.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of vacuum extractor liquid-transfering device, including shell and core pipe, wherein：Further include referring to rhampotheca pipe, pushing arm, leading
Bar, finger pressure button, upper locking positioning nut and lower locking nut；
The shell includes core pipe chamber, guide rod chamber and pushing arm installation cavity, the axis of core pipe chamber and the axis phase of guide rod chamber
Mutually parallel, pushing arm installation cavity is located at the lower section of core pipe chamber and guide rod chamber, and the upper inside wall of the core pipe chamber is equipped with and upper locking
The lower end of the matched internal thread of location nut, the core pipe chamber is equipped with round boss, and being equipped with core pipe in the middle part of round boss stretches out
Hole, round boss madial wall both sides are arranged with positioning wedged block；The upper end of the guide rod chamber is opening, and guide rod bottom of chamber face is equipped with and leads
Bar stretches out hole；The guide rod intracavitary is equipped with washer, limit sebific duct and resetting spring, and the resetting spring is located in limit sebific duct,
The washer is located above resetting spring；
The finger rhampotheca pipe by cylinder stairstepping cavity, refer to rhampotheca pipe guide rod chamber and trigger is constituted, cylinder stairstepping cavity
Upper cavity diameter be more than its lower chamber diameter, the diameter of lower chamber is identical as the outer diameter of upper part of the housing, in cylinder stairstepping chamber
The side of external wall, which is equipped with, refers to rhampotheca pipe guide rod chamber, and the upper end of cylinder stairstepping cavity other side outer wall is provided with trigger；
The pushing arm is the circular cylindrical cavity and pushing arm guide rod chamber composition of descending hollow variable-diameter structure, described
Pushing arm circular cylindrical cavity top surface is equipped with mounting hole, the pushing arm circular cylindrical cavity bottom inner diameter and core pipe lower outer diameter phase
Together, pushing arm circular cylindrical cavity side is equipped with pushing arm guide rod chamber；
It is equipped in the middle part of the core tube wall and is equipped with core with the matched limited bayonet of positioning wedged block, the limited bayonet lower section
Pipe external screw thread, core pipe reducing below core pipe external screw thread, core pipe upper end outer diameter connect bore with vacuum extractor
Identical, core pipe lower end outer diameter is identical as suction nozzle internal diameter；
The finger pressure button is made of button and guide rod connecting pole, and guide rod connecting pole is located at below button, guide rod connection
The outer diameter of column is identical as the internal diameter of rhampotheca pipe guide rod chamber is referred to, and guide rod connecting pole center is equipped with guide rod connecting hole；
The upper locking positioning nut is presented a theatrical performance as the last item on a programme by annular to be formed with cylindrical thread body, and cylindrical thread body is located at what annular was presented a theatrical performance as the last item on a programme
In the following, upper locking positioning nut center, which is equipped with, may pass through the through-hole of core pipe, the cylindrical thread body be equipped with in core pipe chamber top
The matched external screw thread of screw thread, the outer diameter that the annular is presented a theatrical performance as the last item on a programme are identical as the internal diameter of rhampotheca pipe upper cavity is referred to；
The lower locking nut is hollow cylinder, and the top of lower locking nut cavity is equipped with to be matched with core pipe external screw thread
Internal thread, the outer diameter of the lower locking nut is identical as the diameter of pushing arm mounting hole；
The finger rhampotheca pipe is mounted in shell upper end, and finger rhampotheca pipe guide rod chamber is made to be located above guide rod chamber；The pushing arm
It is located in pushing arm installation cavity, and pushing arm guide rod chamber is made to be located at below guide rod chamber；The core pipe sequentially passes through shell from top to bottom
The core pipe chamber of body and the circular cylindrical cavity of pushing arm extend downwardly, and make the positioning of the limited bayonet and core pipe chamber lower end in the middle part of core pipe
Fixture block is in contact；The upper locking positioning nut is located between shell core pipe top of chamber and core pipe and is connect with shell；Under described
Locking nut is connect with core pipe external screw thread, and in the mounting hole of pushing arm；The finger pressure button, which is located at, refers to rhampotheca pipe guide rod
Top of chamber；The guide rod is located at guide rod intracavitary, and passes through washer and resetting spring, and the guide rod upper end, which is upward through, refers to rhampotheca pipe
In the guide rod connecting hole of finger pressure button, the lower end of the guide rod passes through the guide rod stretching hole in guide rod bottom of chamber face to extend to and pushes away guide rod chamber
Go out arm guide rod intracavitary, between the guide rod upper end and the guide rod connecting hole of finger pressure button and the lower end of the guide rod and pushing arm guide rod
It is tight fit connection between chamber；In the middle part of the guide rod, be equipped with upper split washer above washer, the guide rod lower part, shell with
Under shed baffle ring is equipped between pushing arm.
The utility model uses above-mentioned technical proposal, is capable of the pull-off of singlehanded realization suction nozzle, solves suction nozzle replacement process
Cumbersome technical problem, while making suction nozzle direction and to enter liquid depth more easy to control；The setting of sebific duct and resetting spring is limited, it is real
The limitation of existing pushing arm, guide rod and finger pressure button to automatically reset with pushing arm limit inferior stroke.Compared with prior art, this reality
Has many advantages, such as easy to operate, suction nozzle direction and to enter liquid depth controllable with novel.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the connection status schematic diagram of the utility model；
Fig. 3 is the structural schematic diagram of the utility model middle casing；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the B-B sectional views of Fig. 3；
Fig. 6 is the structural schematic diagram of pushing arm in the utility model；
Fig. 7 is the C-C sectional views of Fig. 6；
Fig. 8 is the structural schematic diagram of the utility model middle finger rhampotheca pipe；
Fig. 9 is the vertical view of Fig. 8；
Figure 10 is the structural schematic diagram of the utility model core pipe；
Figure 11 is the D-D sectional views of Figure 10；
Figure 12 is the E-E sectional views of Figure 10；
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figures 1 to 12, a kind of vacuum extractor liquid-transfering device in the present embodiment, including shell 1 and core pipe
2, wherein：Further include referring to rhampotheca pipe 3, pushing arm 4, guide rod 5, finger pressure button 6, upper locking positioning nut 7 and lower locking nut 8；
The shell 1 include core pipe chamber 1-1, guide rod chamber 1-2 and pushing arm installation cavity 1-3, the axis of core pipe chamber 1-1 with lead
The axis of rod cavity 1-2 is mutually parallel, and pushing arm installation cavity 1-3 is located at the lower section of core pipe chamber 1-1 and guide rod chamber 1-2, the core pipe
The upper inside wall of chamber 1-1 is equipped with is equipped with circle with 7 matched internal thread of upper locking positioning nut, the lower end of the core pipe chamber 1-1
It is equipped with core pipe in the middle part of shape boss 1-5, round boss 1-5 and stretches out hole 1-6, round boss 1-5 madial walls both sides are arranged with positioning
Fixture block 1-7；The upper end of the guide rod chamber 1-2 is opening, and the bottom surfaces guide rod chamber 1-2 are equipped with guide rod and stretch out hole 1-4；The guide rod chamber 1-
Washer 9, limit sebific duct 10 and resetting spring 11 are equipped in 2, the resetting spring 11 is located in limit sebific duct 10, the washer 9
It is located at 11 top of resetting spring；
The finger rhampotheca pipe 3 by cylinder stairstepping cavity 3-3, refer to rhampotheca pipe guide rod chamber 3-1 and trigger 3-2 and constitute, cylinder
The upper cavity diameter of stairstepping cavity 3-3 is more than its lower chamber diameter, and the diameter of lower chamber is identical as the outer diameter on 1 top of shell,
It is equipped with and refers to outside the other sides rhampotheca pipe guide rod chamber 3-1, cylinder stairstepping cavity 3-3 in the side of cylinder stairstepping cavity 3-3 outer walls
The upper end of wall is provided with trigger 3-2；
The pushing arm 4 is the circular cylindrical cavity 4-3 and pushing arm guide rod chamber 4-1 groups of descending hollow variable-diameter structure
At 4 top surfaces circular cylindrical cavity 4-3 of the pushing arm are equipped with mounting hole 4-2,4 circular cylindrical cavity 4-3 bottom inner diameters of the pushing arm
Identical as 2 lower outer diameter of core pipe, 4 sides circular cylindrical cavity 4-3 of the pushing arm are equipped with pushing arm guide rod chamber 4-1；
It is equipped with and the matched limited bayonet 2-1 of positioning wedged block 1-7, the limited bayonet 2-1 in the middle part of 2 outer wall of the core pipe
Lower section is equipped with core pipe external screw thread 2-2, the reducing below core pipe external screw thread 2-2 of the core pipe 2,2 upper end outer diameter of the core pipe with it is negative
Press adapter for suction unit internal diameter identical, 2 lower end outer diameter of the core pipe is identical as suction nozzle internal diameter；
The finger pressure button 6 is made of button 6-1 and guide rod connecting pole 6-2, and guide rod connecting pole 6-2 is located at button 6-1's
In the following, the outer diameter of guide rod connecting pole 6-2 is identical as the internal diameter of rhampotheca pipe guide rod chamber 3-1 is referred to, the centers guide rod connecting pole 6-2 are set
There is guide rod connecting hole；
The upper locking positioning nut 7 is made of the annular 7-1 and cylindrical thread body 7-2 that presents a theatrical performance as the last item on a programme, and cylindrical thread body 7-2 is located at
Annular is presented a theatrical performance as the last item on a programme below 7-1, and 7 center of upper locking positioning nut is equipped with the through-hole that may pass through core pipe 2, and the cylindrical thread body is equipped with
With the matched external screw thread of core pipe chamber 1-1 upper internal threadeds, the annular present a theatrical performance as the last item on a programme 7-1 outer diameter with refer to 3 upper cavity of rhampotheca pipe
Internal diameter is identical；
The lower locking nut 8 is hollow cylinder, and the top of 8 cavity of lower locking nut is equipped with and core pipe external screw thread 2-2
The outer diameter of matched internal thread, the lower locking nut 8 is identical as the diameter of 4 mounting hole 4-2 of pushing arm；
The finger rhampotheca pipe 3 is mounted in 1 upper end of shell, and finger rhampotheca pipe guide rod chamber 3-1 is made to be located above guide rod chamber 1-2；Institute
It states pushing arm 4 to be located in pushing arm installation cavity 1-3, and pushing arm guide rod chamber 4-1 is made to be located at below guide rod chamber 1-2；The core pipe 2
The circular cylindrical cavity 4-3 of the core pipe chamber 1-1 and pushing arm 4 that sequentially pass through shell 1 from top to bottom are extended downwardly, and make 2 middle part of core pipe
Limited bayonet 2-1 be in contact with the positioning wedged block 1-7 of the lower ends core pipe chamber 1-1；The upper locking positioning nut 7 is located at shell core
It is connect at the top of tube chamber 1-1 between core pipe 2 and with shell 1；The lower locking nut 8 is connect with core pipe external screw thread 2-2, and is located at
In the mounting hole 4-2 of pushing arm 4；The finger pressure button 6, which is located at, to be referred at the top of rhampotheca pipe guide rod chamber 3-1；The guide rod 5 is located at guide rod
In chamber 1-2, and washer 9 and resetting spring 11 are passed through, 5 upper end of the guide rod, which is upward through, refers to rhampotheca pipe guide rod chamber 3-1 mounted in finger
In the guide rod connecting hole for pressing button 6,5 lower end of the guide rod passes through the guide rod of the bottom surfaces guide rod chamber 1-2 to stretch out hole 1-4 and extends to pushing arm
In guide rod chamber 4-1, between 5 upper end of the guide rod and the guide rod connecting hole of finger pressure button 6 and 5 lower end of the guide rod is led with pushing arm
It is tight fit connection between rod cavity 4-1；The middle part of the guide rod 5,9 top of washer are equipped with upper split washer 12, under the guide rod 5
Under shed baffle ring 13 is equipped between portion, shell 1 and pushing arm 4.
The utility model application method is：Before progress waste liquid removal starts, Electric negative pressure aspirator sebific duct is inserted into core pipe 2
End, 2 lower end perpendicular alignmnet suction nozzle opening of core pipe, is slightly forcibly inserted into suction nozzle, completes Electric negative pressure aspirator sebific duct and suction nozzle and bear
The connection of aspirator liquid-transfering device is pressed, waste liquid removal can be carried out by opening Electric negative pressure aspirator；
When waste liquid removes end and shirks suction nozzle, thumb press finger pressure button 6, finger pressure button 6 drives guide rod 5 to bottom
It moves, guide rod 5 pushes pushing arm 4 with respect to core pipe 2 by 9 compression reseting spring 11 of washer under upper split washer 12,5 lower end of guide rod
It moves down, 4 lower face of pushing arm pushes suction nozzle upper surface, you can detaches suction nozzle with core pipe 2；Finger pressure button 6 is unclamped, is resetted
Spring 11 drives guide rod 5, finger pressure button 6 and pushing arm 4 to move upwards, the under shed baffle ring 13 of 5 lower part of guide rod shift up to
Stop when the guide rod chamber 1-2 lower planes of shell 1, completes the reset of finger pressure button 6 and pushing arm 4.
Claims (1)
1. a kind of vacuum extractor liquid-transfering device, including shell (1) and core pipe (2), it is characterised in that：Further include referring to rhampotheca pipe
(3), pushing arm (4), guide rod (5), finger pressure button (6), upper locking positioning nut (7) and lower locking nut (8)；
The shell (1) includes core pipe chamber (1-1), guide rod chamber (1-2) and pushing arm installation cavity (1-3), the axis of core pipe chamber (1-1)
The axis of line and guide rod chamber (1-2) is mutually parallel, and pushing arm installation cavity (1-3) is located at core pipe chamber (1-1) and guide rod chamber (1-2)
The upper inside wall of lower section, the core pipe chamber (1-1) is equipped with and the matched internal thread of upper locking positioning nut (7), the core pipe
The lower end of chamber (1-1) is equipped with round boss (1-5), and being equipped with core pipe in the middle part of round boss (1-5) stretches out hole (1-6), round boss
(1-5) madial wall both sides are arranged with positioning wedged block (1-7)；The upper end of the guide rod chamber (1-2) is opening, guide rod chamber (1-2)
Bottom surface is equipped with guide rod and stretches out hole (1-4)；Washer (9), limit sebific duct (10) and resetting spring are equipped in the guide rod chamber (1-2)
(11), the resetting spring (11) is located in limit sebific duct (10), and the washer (9) is located above resetting spring (11)；
The finger rhampotheca pipe (3) by cylinder stairstepping cavity (3-3), refer to rhampotheca pipe guide rod chamber (3-1) and trigger (3-2) is constituted,
The upper cavity diameter of cylinder stairstepping cavity (3-3) is more than its lower chamber diameter, and the diameter of lower chamber is outer with shell (1) top
Diameter is identical, is equipped in the side of cylinder stairstepping cavity (3-3) outer wall and refers to rhampotheca pipe guide rod chamber (3-1), cylinder stairstepping cavity
The upper end of the other side (3-3) outer wall is provided with trigger (3-2)；
The pushing arm (4) is the circular cylindrical cavity (4-3) and pushing arm guide rod chamber (4-1) of descending hollow variable-diameter structure
Composition, pushing arm (4) circular cylindrical cavity (4-3) top surface are equipped with mounting hole (4-2), pushing arm (4) circular cylindrical cavity
(4-3) bottom inner diameter is identical as core pipe (2) lower outer diameter, and pushing arm (4) circular cylindrical cavity (4-3) side is equipped with pushing arm
Guide rod chamber (4-1)；
It is equipped with and positioning wedged block (1-7) matched limited bayonet (2-1), the limited bayonet in the middle part of core pipe (2) outer wall
Core pipe external screw thread (2-2), the core pipe (2) reducing, core pipe (2) below core pipe external screw thread (2-2) are equipped with below (2-1)
Upper end outer diameter is identical as vacuum extractor connection bore, and core pipe (2) the lower end outer diameter is identical as suction nozzle internal diameter；
The finger pressure button (6) is made of button (6-1) and guide rod connecting pole (6-2), and guide rod connecting pole (6-2) is located at button
Below (6-1), the outer diameter of guide rod connecting pole (6-2) is identical as the internal diameter for referring to rhampotheca pipe guide rod chamber (3-1), the guide rod connection
Column (6-2) center is equipped with guide rod connecting hole；
The upper locking positioning nut (7) is presented a theatrical performance as the last item on a programme (7-1) by annular and cylindrical thread body (7-2) forms, cylindrical thread body (7-2)
It is located at annular to present a theatrical performance as the last item on a programme below (7-1), upper locking positioning nut (7) center is equipped with the through-hole that may pass through core pipe (2), the cylinder
Threaded body be equipped with the matched external screw thread of core pipe chamber (1-1) upper internal threaded, the annular present a theatrical performance as the last item on a programme (7-1) outer diameter with refer to hook
The internal diameter of casing (3) upper cavity is identical；
The lower locking nut (8) is hollow cylinder, and the top of lower locking nut (8) cavity is equipped with and core pipe external screw thread (2-
2) outer diameter of matched internal thread, the lower locking nut (8) is identical as the diameter of pushing arm (4) mounting hole (4-2)；
The finger rhampotheca pipe (3) is mounted in shell (1) upper end, and finger rhampotheca pipe guide rod chamber (3-1) is made to be located on guide rod chamber (1-2)
Side；The pushing arm (4) is located in pushing arm installation cavity (1-3), and pushing arm guide rod chamber (4-1) is made to be located at guide rod chamber (1-2)
Lower section；The core pipe (2) sequentially passes through the circular cylindrical cavity of the core pipe chamber (1-1) and pushing arm (4) of shell (1) from top to bottom
(4-3) is extended downwardly, and makes the limited bayonet (2-1) in the middle part of core pipe (2) and positioning wedged block (1-7) phase of the lower end core pipe chamber (1-1)
Contact；The upper locking positioning nut (7) is located at the top of shell core pipe chamber (1-1) to be connected between core pipe (2) and with shell (1)
It connects；The lower locking nut (8) connect with core pipe external screw thread (2-2), and in the mounting hole (4-2) of pushing arm (4)；It is described
Finger pressure button (6), which is located at, to be referred at the top of rhampotheca pipe guide rod chamber (3-1)；The guide rod (5) is located in guide rod chamber (1-2), and across pad
(9) and resetting spring (11) are enclosed, guide rod (5) upper end, which is upward through, refers to rhampotheca pipe guide rod chamber (3-1) mounted in finger pressure button (6)
Guide rod connecting hole in, guide rod (5) lower end pass through the bottom surface guide rod chamber (1-2) guide rod stretch out hole (1-4) extend to pushing arm
In guide rod chamber (4-1), between guide rod (5) upper end and the guide rod connecting hole of finger pressure button (6) and the guide rod (5) lower end and
It is tight fit connection between pushing arm guide rod chamber (4-1)；In the middle part of the guide rod (5), upper split washer is equipped with above washer (9)
(12), under shed baffle ring (13) is equipped between guide rod (5) lower part, shell (1) and pushing arm (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721733409.XU CN207685304U (en) | 2017-12-13 | 2017-12-13 | A kind of vacuum extractor liquid-transfering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721733409.XU CN207685304U (en) | 2017-12-13 | 2017-12-13 | A kind of vacuum extractor liquid-transfering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207685304U true CN207685304U (en) | 2018-08-03 |
Family
ID=62997759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721733409.XU Active CN207685304U (en) | 2017-12-13 | 2017-12-13 | A kind of vacuum extractor liquid-transfering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207685304U (en) |
-
2017
- 2017-12-13 CN CN201721733409.XU patent/CN207685304U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanxi Medical University Asset Management Co., Ltd Assignor: Shanxi Medial University Contract record no.: X2019980000611 Denomination of utility model: Pipetting device for negative pressure aspirator Granted publication date: 20180803 License type: Common License Record date: 20191115 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Shanxi Medical University Asset Management Co.,Ltd. Assignor: SHANXI MEDICAL University Contract record no.: X2019980000611 Date of cancellation: 20210422 |
|
| EC01 | Cancellation of recordation of patent licensing contract |