CN109941949B - Device for delivering liquid to disc center direction - Google Patents
Device for delivering liquid to disc center direction Download PDFInfo
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- CN109941949B CN109941949B CN201910289328.2A CN201910289328A CN109941949B CN 109941949 B CN109941949 B CN 109941949B CN 201910289328 A CN201910289328 A CN 201910289328A CN 109941949 B CN109941949 B CN 109941949B
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- 239000007788 liquid Substances 0.000 title claims abstract description 50
- 238000007789 sealing Methods 0.000 claims description 75
- 238000012360 testing method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 238000003825 pressing Methods 0.000 description 8
- 238000001467 acupuncture Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention discloses a device for conveying liquid to the center direction of a disc, and relates to the technical field of detection equipment; the device comprises a first chamber (1), a second chamber (2), a first flow channel (3) and a negative pressure module, wherein the first chamber (1) is connected and communicated with the second chamber (2) through the first flow channel (3), and the negative pressure module is connected with the second chamber (2); the liquid to be detected is introduced into the second chamber from the first chamber through the first chamber, the second chamber, the first flow channel, the negative pressure module and the like, so that the efficiency is high and the effect is good.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a device for conveying liquid to the center direction of a disc.
Background
At present, in order to transfer liquid from the chamber A to the chamber B in the detection process, the rotation speed of a disc is generally increased, the liquid is centrifugally guided to a compression chamber, and the liquid entering the compression chamber compresses air in the compression chamber. The disc speed is then reduced and the compressed air forces the liquid entering the compression chamber into chamber B. The device and the method have the advantages of low realization efficiency and poor effect.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device for conveying liquid to the center direction of a disc, which is high in efficiency and good in effect by introducing liquid to be detected from a first chamber into a second chamber through the first chamber, the second chamber, a first flow channel, a negative pressure module and the like.
In order to solve the technical problems, the invention adopts the following technical scheme: the device comprises a first chamber, a second chamber, a first flow channel and a negative pressure module, wherein the first chamber is connected and communicated with the second chamber through the first flow channel, and the negative pressure module is connected with the second chamber.
The further technical proposal is that: the negative pressure module comprises a vacuum bag and needling, and the matching relationship between the vacuum bag and the needling is that the vacuum bag is close to the needling and is pierced by the needling under the action of external force.
The further technical proposal is that: the vacuum bag and the needling are positioned in the second chamber, the vacuum bag is movably connected with the second chamber, and the needling is connected with the second chamber.
The further technical proposal is that: the negative pressure module further comprises a third chamber and a second flow passage, the second chamber is connected and communicated with the third chamber through the second flow passage, the vacuum bag and the needling are positioned in the third chamber, the vacuum bag is movably connected with the third chamber, and the needling is connected with the third chamber.
The further technical proposal is that: the negative pressure module further comprises an elastic sealing piece, the vacuum bag is located at the top of the second chamber, the vacuum bag is connected with the second chamber through the elastic sealing piece, and the needling is fixedly connected with the bottom chamber wall of the second chamber.
The further technical proposal is that: the elastic sealing piece is an elastic sealing piece, the elastic sealing piece is positioned above the second chamber, and the vacuum bag is arranged on the elastic sealing piece.
The further technical proposal is that: the elastic sealing piece is an elastic sealing ring, and the vacuum bag is connected with the inner wall of the second chamber through the elastic sealing ring.
The further technical proposal is that: the vacuum bag comprises a hollow bag body with at least one open end and a sealing membrane, wherein the sealing membrane is connected with the hollow bag body and seals the hollow bag body.
The further technical proposal is that: the hollow bag body is a round tube.
The further technical proposal is that: the negative pressure module comprises a vent hole, and the second chamber is communicated with the outside through the vent hole.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
first, including first room, second room, first runner and negative pressure module, first room is connected with the second room through first runner and is switched on, negative pressure module is connected with the second room. According to the technical scheme, the liquid to be detected is introduced into the second chamber from the first chamber through the first chamber, the second chamber, the first flow channel, the negative pressure module and the like, and the suction force formed by the negative pressure module is large, so that the working efficiency is high, and the effect is good.
Second, the negative pressure module comprises a vacuum bag and needling, and the matching relationship between the vacuum bag and the needling is that the vacuum bag is close to the needling and is pierced by the needling under the action of external force. The technical scheme has the advantages of more reasonable and ingenious structure, simpler and more convenient production and lower processing cost.
Third, vacuum package and acupuncture are located the second room, and vacuum package and second room swing joint, acupuncture and second room are connected. The technical scheme has the advantages of simpler structure and smaller occupied space.
Fourth, the negative pressure module still includes third room and second flow path, the second room is connected with the third room through the second flow path and is switched on, vacuum package and acupuncture are located the third room, vacuum package and third room swing joint, acupuncture is connected with the third room. According to the technical scheme, the vacuum bag and the needling do not occupy the space of the second chamber, and are favorable for containing liquid.
Fifth, the negative pressure module still includes elastic sealing piece, the vacuum package is located the top of second room, and the vacuum package passes through elastic sealing piece and is connected with the second room, acupuncture and the bottom chamber wall fixed connection of second room. According to the technical scheme, the vacuum bag is elastically connected with the second chamber through the elastic sealing piece, the structure is simpler, the structural firmness is better, and the working performance is more stable.
Sixth, the elastic sealing piece is an elastic sealing piece, the elastic sealing piece is located above the second chamber, and the vacuum bag is arranged on the elastic sealing piece. According to the technical scheme, the processing operation is simple and convenient, and the processing cost is low.
Seventh, the elastic sealing piece is an elastic sealing ring, and the vacuum bag is connected with the inner wall of the second chamber through the elastic sealing ring. The technical scheme has the advantages of ingenious structure and more convenient use.
Eighth, the vacuum bag comprises a hollow bag body with at least one open end and a sealing membrane, wherein the sealing membrane is connected with the hollow bag body and seals the hollow bag body. The technical scheme has the advantages of simpler structure, more convenient processing and lower production cost.
Ninth, the hollow bag body is a round tube. The technical scheme is convenient to process and good in structural stability.
Tenth, the negative pressure module includes a vent hole, and the second chamber is communicated with the outside through the vent hole. According to the technical scheme, the structure is simpler, and batch processing is more convenient.
See the description of the detailed description section.
Drawings
FIG. 1 is a top view of embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a sectional view of the vacuum bag in example 1 of the present invention;
FIG. 4 is a top view of embodiment 2 of the present invention;
FIG. 5 is a B-B cross-sectional view of FIG. 4;
FIG. 6 is a top view of embodiment 3 of the present invention;
FIG. 7 is a C-C cross-sectional view of FIG. 6;
FIG. 8 is a block diagram of embodiment 4 of the present invention;
fig. 9 is a structural view of a first disc in embodiment 4 of the present invention;
fig. 10 is a structural view of a first coating film in embodiment 4 of the present invention;
FIG. 11 is an assembly view of a first coating film in example 4 of the present invention;
FIG. 12 is a working state diagram of embodiment 4 of the present invention;
FIG. 13 is a block diagram of embodiment 5 of the present invention;
fig. 14 is a partial cutaway view of embodiment 5 of the present invention.
Wherein: 1 first chamber, 2 second chamber, 3 first runner, 4 third chamber, 5 second runner, 6 air vent, 7 vacuum bag, 7-1 hollow bag body, 7-2 sealing film, 8 needling, 9-1 first elastic sealing sheet, 9-2 second elastic sealing sheet, 9-3 first elastic sealing ring, 9-4 second elastic sealing ring, 10-1 first disk body, 10-2 second disk body, 11-1 first coating film, 11-2 second coating film, 12 assembling hole and 13 telescopic rod.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.
Example 1:
As shown in fig. 1-3, the invention discloses a device for conveying liquid to the center direction of a disc, which comprises a first chamber 1, a second chamber 2, a first flow channel 3, a vacuum bag 7, a needling 8 and a first elastic sealing sheet 9-1, wherein the first chamber 1 is connected and communicated with the second chamber 2 through the first flow channel 3.
As shown in fig. 2, the needle punch 8 and the first elastic sealing sheet 9-1 are directly connected to the second chamber 2. The first elastic sealing piece 9-1 is located above the second chamber 2, and the first elastic sealing piece 9-1 and the chamber wall of the second chamber 2 encircle to form the second chamber 2. The needling 8 is fixedly connected with the bottom of the second chamber 2, the vacuum bag 7 is fixedly connected to the inner side of the first elastic sealing piece 9-1 and is positioned at the top of the second chamber 2, the vacuum bag 7 is positioned above the needling 8, and the matching relationship between the vacuum bag 7 and the needling 8 is that the vacuum bag 7 is close to the needling 8 under the action of external force and is pierced by the needling 8.
The vacuum bag 7, the needling 8 and the elastic sealing member form a negative pressure module.
As shown in fig. 3, the vacuum bag 7 comprises a tubular hollow bag body 7-1 with one end opened and a sealing film 7-2, wherein the sealing film 7-2 is connected with the hollow bag body 7-1 and seals the hollow bag body 7-1.
Description of the production of vacuum bag 7 in example 1:
as shown in FIG. 3, the hollow bag 7-1 is placed in a vacuum-pumping apparatus to be evacuated, and then the hollow bag 7-1 is sealed with a sealing film 7-2.
Description of example 1 use:
Initially, the liquid to be detected is located in the first chamber 1, in order to introduce the liquid to be detected from the first chamber 1 into the second chamber 2, the pressing rod of the detection table is operated to press down, the pressing rod pressed down pushes the first elastic sealing sheet 9-1 to move downward, the first elastic sealing sheet 9-1 drives the vacuum bag 7 to move downward, the vacuum bag 7 is close to the needling 8, the sealing film 7-2 is pierced by the needling 8, and then a negative pressure is formed in the second chamber 2.
Under the action of the negative pressure in the second chamber 2, the liquid to be detected is introduced from the first chamber 1 into the second chamber 2.
Inventive concept of example 1: the first chamber 1, the first flow channel 3 and the second chamber 2 which are sequentially connected and communicated, and the vacuum bag 7 and the needling 8 which are positioned in the second chamber 2 are adopted, and the vacuum bag 7 on the first elastic sealing sheet 9-1 is punctured by the needling 8 to form negative pressure by pressing, so that the technical problem that liquid to be detected is introduced into the second chamber 2 from the first chamber 1 is solved, and the liquid to be detected is introduced into the second chamber 2 from the first chamber 1 under the action of the suction force formed by the negative pressure module.
When the first chamber 1, the first flow channel 3 and the second chamber 2 are in a stationary state, the liquid to be detected can still be introduced from the first chamber 1 into the second chamber 2.
The suction formed by the negative pressure module is large, so that the working efficiency is high, and the effect is good.
Example 2:
As shown in fig. 4 and 5, the present invention discloses a device for delivering liquid to the center direction of a disc, which comprises a first chamber 1, a second chamber 2, a first flow channel 3, a third chamber 4, a second flow channel 5, a vacuum bag 7, a needling 8 and a second elastic sealing sheet 9-2, wherein the first chamber 1 is connected and communicated with the second chamber 2 through the first flow channel 3, and the second chamber 2 is connected and communicated with the third chamber 4 through the second flow channel 5.
As shown in fig. 5, the second elastic sealing piece 9-2 is located above the third chamber 4, and the second elastic sealing piece 9-2 and the chamber wall of the third chamber 4 surround to form the third chamber 4. The needling 8 is fixedly connected with the bottom of the third chamber 4, the vacuum bag 7 is fixedly connected to the inner side of the second elastic sealing piece 9-2 and is positioned at the top of the third chamber 4, the vacuum bag 7 is positioned above the needling 8, and the matching relationship between the vacuum bag 7 and the needling 8 is that the vacuum bag 7 is close to the needling 8 under the action of external force and is pierced by the needling 8.
The third chamber 4, the second flow channel 5, the vacuum bag 7, the needling 8 and the second elastic sealing piece 9-2 form a negative pressure module, and the needling 8 and the second elastic sealing piece 9-2 are directly connected with the third chamber 4, namely, the vacuum bag 7, the needling 8 and the second elastic sealing piece 9-2 are indirectly connected with the second chamber 2.
As shown in fig. 3, example 2 is the same as the vacuum bag 7 of example 1, and the vacuum bag 7 includes a hollow bag body 7-1 having a circular tube shape with one end opened, and a sealing film 7-2, and the sealing film 7-2 is connected to the hollow bag body 7-1 and seals the hollow bag body 7-1.
Description of example 2 use:
Initially, the liquid to be detected is located in the first chamber 1, in order to introduce the liquid to be detected from the first chamber 1 into the second chamber 2, the pressing lever is operated to press down, the pressing lever pressed down pushes the second elastic sealing sheet 9-2 to move downward, the second elastic sealing sheet 9-2 drives the vacuum bag 7 to move downward, the vacuum bag 7 approaches the needling 8, the sealing film 7-2 is pierced by the needling 8, and then a negative pressure is formed in the third chamber 4.
Under the action of the negative pressure in the third chamber 4, the liquid to be detected is introduced from the first chamber 1 into the second chamber 2.
Inventive concept of example 2: the technical problem that liquid to be detected is introduced into the second chamber 2 from the first chamber 1 is solved by adopting the first chamber 1, the first flow channel 3, the second chamber 2, the second flow channel 5 and the third chamber 4 which are sequentially connected and the vacuum bag 7 and the needling 8 which are positioned in the third chamber 4, and the vacuum bag 7 on the second elastic sealing piece 9-2 is punctured by the needling 8 to form negative pressure by pressing the second elastic sealing piece, so that the liquid to be detected is introduced into the second chamber 2 from the first chamber 1 under the action of the suction force formed by the negative pressure module.
When the first chamber 1, the first flow channel 3 and the second chamber 2 are in a stationary state, the liquid to be detected can still be introduced from the first chamber 1 into the second chamber 2.
Example 3:
As shown in fig. 6 and 7, embodiment 3 is similar to embodiment 2, except that the elastic sealing member is a first elastic sealing ring 9-3, the vacuum bag 7 is connected with the top wall of the third chamber 4 in an inlaid manner through the first elastic sealing ring 9-3, and the walls of the vacuum bag 7, the first elastic sealing ring 9-3 and the third chamber 4 are surrounded to form the third chamber 4.
When in use, the pressing rod is pressed down to directly push the top wall of the hollow bag body 7-1 of the vacuum bag 7, the vacuum bag 7 moves downwards, the vacuum bag 7 is close to the needling 8, the sealing film 7-2 is pierced by the needling 8, and then negative pressure is formed in the third chamber 4.
Example 4:
As shown in fig. 8-12, the invention discloses a device for delivering liquid to the center direction of a disc, which comprises a first chamber 1, a second chamber 2, a first flow channel 3, a third chamber 4, a second flow channel 5, a vacuum bag 7, a needling 8, a second elastic sealing ring 9-4, a first disc body 10-1 and a first covering film 11-1, wherein the first covering film 11-1 is fixedly connected with the first disc body 10-1.
As shown in fig. 9, the first chamber 1, the second chamber 2, the first flow channel 3, the third chamber 4 and the second flow channel 5 are formed on the first disc body 10-1, the first chamber 1 is connected and communicated with the second chamber 2 through the first flow channel 3, the second chamber 2 is connected and communicated with the third chamber 4 through the second flow channel 5, the second chamber 2 is closer to the center of the first disc body 10-1 than the first chamber 1, and the needling 8 is fixed at the bottom of the third chamber 4.
As shown in fig. 10, the assembly hole 12 penetrates the first coating film 11-1.
As shown in fig. 11, the vacuum bag 7 is connected to the assembly hole 12 of the first film 11-1 by the second elastic sealing ring 9-4.
Example 4 description of use:
Placing the disk on a rotary test table, and driving the disk to rotate by the rotary test table.
Initially, the liquid to be detected is located in the first chamber 1, and in order to introduce the liquid to be detected from the first chamber 1 into the second chamber 2, the telescopic rod 13 of the operation rotation test stand is overlapped on the upper surface of the first coating film 11-1 and is located on the rotation running track of the vacuum bag 7.
As shown in fig. 12, the front end of the telescopic rod 13 is arc-shaped, and the front end of the telescopic rod 13 is fitted to the assembly hole 12. When the front end of the telescopic rod 13 is positioned on the vacuum bag 7, the upward supporting resultant force of the second elastic sealing ring 9-4 is insufficient to overcome the downward pressure of the telescopic rod 13 because of the elasticity, the telescopic rod 13 presses the vacuum bag 7 to move downwards, the vacuum bag 7 is close to the needling 8, the sealing film 7-2 is pierced by the needling 8, and then negative pressure is formed in the third chamber 4. The disk continues to rotate, and the front end of the telescopic rod 13 is jacked up by the first coating film 11-1 and continues to contact with the upper surface of the first coating film 11-1 because the front end of the telescopic rod 13 is arc-shaped.
Under the action of the negative pressure in the third chamber 4, the liquid to be detected is introduced from the first chamber 1 into the second chamber 2.
Inventive concept of example 4: the technical problem that liquid to be detected is introduced into the second chamber 2 from the first chamber 1 is solved by adopting the first chamber 1, the first flow channel 3, the second chamber 2, the second flow channel 5 and the third chamber 4 which are sequentially connected and connected, and the vacuum bag 7 and the needling 8 which are positioned in the third chamber 4, and by directly pressing the vacuum bag 7, the vacuum bag is punctured by the needling 8 to form negative pressure, and the liquid to be detected is introduced into the second chamber 2 from the first chamber 1 under the action of the suction force formed by the negative pressure module.
When the first chamber 1, the first flow channel 3 and the second chamber 2 are in a rotating state, the liquid to be detected can still be introduced from the first chamber 1 into the second chamber 2.
Example 5:
As shown in fig. 13 and 14, the present invention discloses a device for delivering liquid to the center of a disc, which comprises a first chamber 1, a second chamber 2, a first flow channel 3, a third chamber 4 and a second flow channel 5 which are arranged on a second disc body 10-2, and a vent hole 6 which is arranged on a second coating film 11-2, wherein the second coating film 11-2 is fixed on the upper surface of the second disc body 10-2.
As shown in fig. 14, the first chamber 1 is connected to and communicated with the second chamber 2 through the first flow passage 3, the second chamber 2 is connected to and communicated with the third chamber 4 through the second flow passage 5, the second chamber 2 is closer to the center of the disk than the first chamber 1, and the third chamber 4 is communicated with the outside through the vent hole 6.
The vent 6 is cylindrical in shape.
Example 5 description of use:
Placing the disk on a rotary test table, and driving the disk to rotate by the rotary test table.
Initially, the liquid to be detected is located in the first chamber 1, and in order to introduce the liquid to be detected from the first chamber 1 into the second chamber 2, the vacuum pump is operated to operate, the suction pipe is operated to be pressed down, the suction pipe pressed down is located above the vent hole 6, the vacuum pump is vacuumized and sucked through the suction pipe, and then a negative pressure is formed in the third chamber 4.
Under the action of the negative pressure in the third chamber 4, the liquid to be detected is introduced from the first chamber 1 into the second chamber 2.
Inventive concept of example 5: the technical problem that liquid to be detected is introduced into the second chamber 2 from the first chamber 1 is solved by adopting the first chamber 1, the first flow channel 3, the second chamber 2, the second flow channel 5 and the third chamber 4 which are sequentially connected and communicated and the vent hole 6 positioned above the third chamber 4 and forming negative pressure in the third chamber 4 in an external air suction mode, and the liquid to be detected is introduced into the second chamber 2 from the first chamber 1 under the action of the suction force formed by the negative pressure module.
When the first chamber 1, the first flow channel 3 and the second chamber 2 are in a rotating state, the liquid to be detected can still be introduced from the first chamber 1 into the second chamber 2.
Claims (9)
1. A device for delivering liquid in the direction of the center of a disc, comprising: the device comprises a first chamber (1), a second chamber (2), a first flow channel (3) and a negative pressure module, wherein the first chamber (1) is connected and communicated with the second chamber (2) through the first flow channel (3), and the negative pressure module is connected with the second chamber (2); the negative pressure module comprises a vacuum bag (7) and a needling (8), the matching relationship between the vacuum bag (7) and the needling (8) is that the vacuum bag (7) is downwards close to the needling (8) and is pierced by the needling (8) under the action of external force pressed by a telescopic rod of the rotary test table, and the front end of the telescopic rod is arc-shaped.
2. The apparatus for delivering liquid in the center direction of a disc according to claim 1, wherein: the vacuum bag (7) and the needling (8) are positioned in the second chamber (2), the vacuum bag (7) is movably connected with the second chamber (2), and the needling (8) is connected with the second chamber (2).
3. The apparatus for delivering liquid in the center direction of a disc according to claim 1, wherein: the negative pressure module further comprises a third chamber (4) and a second flow passage (5), the second chamber (2) is connected and communicated with the third chamber (4) through the second flow passage (5), the vacuum bag (7) and the needling (8) are positioned in the third chamber (4), the vacuum bag (7) is movably connected with the third chamber (4), and the needling (8) is connected with the third chamber (4).
4. The apparatus for delivering liquid in the center direction of a disc according to claim 2, wherein: the negative pressure module further comprises an elastic sealing piece, the vacuum bag (7) is located at the top of the second chamber (2), the vacuum bag (7) is connected with the second chamber (2) through the elastic sealing piece, and the needling (8) is fixedly connected with the bottom chamber wall of the second chamber (2).
5. The apparatus for delivering liquid in the center direction of a disc according to claim 4, wherein: the elastic sealing piece is an elastic sealing piece, the elastic sealing piece is positioned above the second chamber (2), and the vacuum bag (7) is arranged on the elastic sealing piece.
6. The apparatus for delivering liquid in the center direction of a disc according to claim 4, wherein: the elastic sealing piece is an elastic sealing ring, and the vacuum bag (7) is connected with the inner wall of the second chamber (2) through the elastic sealing ring.
7. The apparatus for transporting liquid toward the center of a disc according to any one of claims 1 to 6, wherein: the vacuum bag (7) comprises a hollow bag body (7-1) with at least one end open and a sealing film (7-2), wherein the sealing film (7-2) is connected with the hollow bag body (7-1) and seals the hollow bag body (7-1).
8. The apparatus for delivering liquid in the center direction of a disc according to claim 7, wherein: the hollow bag body (7-1) is a round tube.
9. The apparatus for delivering liquid in the center direction of a disc according to claim 1, wherein: the negative pressure module comprises a vent hole, and the second chamber (2) is communicated with the outside through the vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289328.2A CN109941949B (en) | 2019-04-11 | 2019-04-11 | Device for delivering liquid to disc center direction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289328.2A CN109941949B (en) | 2019-04-11 | 2019-04-11 | Device for delivering liquid to disc center direction |
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| CN109941949A CN109941949A (en) | 2019-06-28 |
| CN109941949B true CN109941949B (en) | 2024-04-30 |
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| CN201910289328.2A Active CN109941949B (en) | 2019-04-11 | 2019-04-11 | Device for delivering liquid to disc center direction |
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| GB2554377A (en) * | 2016-09-23 | 2018-04-04 | Dnanudge Ltd | Method and apparatus for analysing a biological sample |
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