CN210097737U - Micro-fluidic chip mounting fixture convenient to dismouting - Google Patents
Micro-fluidic chip mounting fixture convenient to dismouting Download PDFInfo
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- CN210097737U CN210097737U CN201920890284.4U CN201920890284U CN210097737U CN 210097737 U CN210097737 U CN 210097737U CN 201920890284 U CN201920890284 U CN 201920890284U CN 210097737 U CN210097737 U CN 210097737U
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Abstract
The utility model discloses a micro-fluidic chip mounting fixture convenient to dismouting relates to micro-fluidic technical field. The technical key points are as follows: the novel chip placing device comprises a base, a chip placing groove is formed in the upper surface of the base, an observation hole is formed in the bottom of the chip placing groove, a transparent cover plate is arranged at the opening of the chip placing groove, a mounting hole corresponding to the position of a liquid inlet and outlet of a chip is formed in the cover plate, a plurality of threaded holes are formed in the periphery of the base, through holes coaxial with the plurality of threaded holes are formed in the cover plate, clamping holes are formed in the periphery of the upper surface of the cover plate, a fixing ring is clamped in the clamping holes, bolts are arranged in the fixing ring along the axial direction of the fixing ring and sequentially penetrate through the fixing ring, the through holes are in threaded connection with the threaded holes, elastic pieces are arranged between the bolt heads and the fixing ring, two ends of the elastic pieces are respectively. It has easy dismounting, the difficult advantage of losing of bolt.
Description
Technical Field
The utility model relates to a micro-fluidic chip technical field, more specifically say, it relates to a micro-fluidic chip mounting fixture convenient to dismouting.
Background
The micro-fluidic chip is a hot spot field for the development of the current micro total analysis system. The micro-fluidic chip analysis takes a chip as an operation platform, simultaneously takes analytical chemistry as a basis, takes a micro-electromechanical processing technology as a support, takes a micro-pipeline network as a structural characteristic, takes life science as a main application object at present, and is the key point of the development of the field of the current micro total analysis system. Its goal is to integrate the functions of the whole laboratory, including sampling, diluting, adding reagents, reacting, separating, detecting, etc., on a microchip, and to be used many times. For the use of microfluidic chips, an important part is the connection between the external fluid and the microfluidic chip pipeline. Most microfluidic chip users still adopt a method of directly gluing the glass substrate and the PDMS sheet. The connection method belongs to irreversible connection, the glass substrate and the PDMS sheet cannot be disassembled and used subsequently, and the connection method also influences the fixation and observation of the chip to a great extent. In addition, the method of adhesion is complicated to operate and has a possibility of contaminating the sample, thus preventing the large-scale application of the microfluidic chip.
The Chinese patent with the publication number of CN103878038A discloses a universal microfluidic chip clamp, which comprises a clamp B plate, a chip, a polyfluoroethylene edge ring, a clamp A plate, a connecting screw, a sleeve and a glass capillary; the 10 corresponding holes on the clamp B plate and the clamp A plate are respectively fixed by M3 screws to be combined into a whole.
Above-mentioned patent adopts anchor clamps to compress tightly glass substrate and PDMS sheet to realize dismantling and subsequent use of chip, but because be fixed with 10 screws on the anchor clamps and be used for compressing tightly the chip, when the installation, need aim at screw and screw, then screw up, the installation is inconvenient, and the screw is easy after dismantling and anchor clamps separation moreover, causes and loses.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a micro-fluidic chip mounting fixture convenient to dismouting, it has easy dismounting, the difficult advantage of losing of bolt.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a micro-fluidic chip fixing clamp convenient to disassemble and assemble comprises a base, wherein a chip placing groove is arranged on the upper surface of the base, the bottom of the chip placing groove is provided with an observation hole, the opening of the chip placing groove is provided with a transparent cover plate, the cover plate is provided with a mounting hole corresponding to the position of the liquid inlet and outlet of the chip, the edge of the periphery of the base is provided with a plurality of threaded holes, the cover plate is provided with a through hole coaxial with the threaded holes, the upper surface of the cover plate is provided with a clamping hole at the periphery of the through hole, a fixing ring is clamped in the clamping hole, a bolt is arranged in the fixing ring along the axial direction of the fixing ring, the bolt sequentially passes through the fixing ring and the through hole and is in threaded connection with the threaded hole, an elastic piece is arranged between the bolt head and the fixing ring, two ends of the elastic piece are respectively abutted against the bolt head and the fixing ring, and a limiting ring with the inner diameter smaller than the outer diameter of the bolt thread section is arranged on the inner wall of the fixing ring.
By adopting the technical scheme, when the anti-loosening device is installed, the chip is placed in the placing groove, the cover plate is placed above the chip, the bolt is rotated to be in threaded connection with the base, the chip can be fixed, the installation is convenient, the elastic piece is compressed at the moment, the head of the bolt is applied with elasticity, and the anti-loosening effect is achieved; during the dismantlement, the rotary bolt, until the bolt receives the unable rotation of the restriction of spacing ring, at this moment, the bolt breaks away from the screw hole, and the elastic component extension, the one end butt of elastic component is on solid fixed ring, and the other end butt is at the bolt head, because the bolt receives the restriction of spacing ring can not break away from solid fixed ring, and solid fixed ring and apron joint, the bolt can be stayed on the apron, is difficult for losing.
Furthermore, the elastic part is a spiral spring, and the spiral spring is sleeved on the periphery of the bolt.
By adopting the technical scheme, the spiral spring can disperse stress and has long service life.
Furthermore, one side of the fixing ring, which faces the bolt head, is extended to form a guide ring, and the spiral spring is sleeved on the periphery of the guide ring.
Through adopting above-mentioned technical scheme, the guide ring plays the guide effect to coil spring's compression, separates the screw thread of bolt and coil spring moreover, reduces the wearing and tearing of screw thread.
Furthermore, the limiting ring is positioned at one end of the guide ring close to the head of the bolt.
Through adopting above-mentioned technical scheme, when the bolt breaks away from the screw hole completely, the screw thread just with the spacing ring butt, can remind the user to stop rotatory coil spring.
Furthermore, the bolt head extends towards the direction of the fixing ring to be provided with a positioning ring, and the spiral spring is positioned between the guide ring and the positioning ring when being compressed.
Through adopting above-mentioned technical scheme, holding ring and guide ring all play direction and limiting displacement to coil spring, guarantee that it is flexible along the axis direction of bolt.
Furthermore, the upper surface of the bolt head is provided with a groove.
Through adopting above-mentioned technical scheme, except that twisting the bolt with the hand during dismantlement, can also adopt the screwdriver to dismantle.
Further, the edge of the bolt head is provided with a chamfer.
Through adopting above-mentioned technical scheme, the risk of colliding with when the chamfer can reduce the use.
Furthermore, a plurality of anti-skid protrusions distributed at intervals are arranged on the periphery of the head of the bolt and are arranged along the axial direction of the bolt.
By adopting the technical scheme, when the bolt is disassembled by hands, the antiskid bulges play an antiskid role.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) through the arrangement of the bolt, the fixing ring, the through hole, the threaded hole, the elastic piece and the limiting ring, when the bolt is disassembled, the bolt is rotated until the bolt is limited by the limiting ring and cannot rotate, at the moment, the bolt is separated from the threaded hole, the elastic piece extends, one end of the elastic piece abuts against the fixing ring, the other end of the elastic piece abuts against the head of the bolt, the bolt cannot be separated from the fixing ring due to the limitation of the limiting ring, the fixing ring is clamped with the cover plate, the bolt can be left on the cover plate and is not easy to lose, and;
(2) through setting up holding ring and guide ring, all play direction and limiting displacement to coil spring, guarantee that it is flexible along the axis direction of bolt.
Drawings
FIG. 1 is an overall view of the present embodiment;
FIG. 2 is a front view of the present embodiment;
FIG. 3 is a sectional view of the present embodiment;
fig. 4 is a partially enlarged view of the present embodiment.
Reference numerals: 1. a base; 2. a chip placing groove; 3. an observation hole; 4. a cover plate; 5. mounting holes; 6. a threaded hole; 7. a through hole; 8. a clamping hole; 9. a fixing ring; 10. a bolt; 11. an elastic member; 12. a limiting ring; 13. a guide ring; 14. a positioning ring; 15. a groove; 16. chamfering; 17. and (4) anti-skid bulges.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 3, a microfluidic chip fixing clamp convenient to disassemble and assemble comprises a rectangular base 1, a rectangular chip placing groove 2 is formed in the upper surface of the base 1, an observation hole 3 is formed in the bottom of the chip placing groove 2, a transparent cover plate 4 is arranged at the opening of the chip placing groove 2, and 6 mounting holes 5 corresponding to the positions of liquid inlet and outlet ports of a chip are formed in the cover plate 4.
As shown in fig. 3 and 4, the periphery of the base 1 is provided with a plurality of threaded holes 6, and in this embodiment, the number of the threaded holes 6 is 8 and the threaded holes are uniformly distributed. Offer on apron 4 with the coaxial through-hole 7 of a plurality of screw holes 6, 4 upper surfaces of apron are located the week side of through-hole 7 and have been seted up joint hole 8, joint has solid fixed ring 9 in the hole 8, gu be provided with bolt 10 along its axial in the fixed ring 9, bolt 10 passes solid fixed ring 9 in proper order, through-hole 7 and with screw hole 6 threaded connection, be provided with elastic component 11 between bolt 10 head and the solid fixed ring 9, elastic component 11 both ends respectively with bolt 10 head, gu fixed ring 9 butt, elastic component 11 is coil spring, the week side of bolt 10 is located to the coil spring cover.
The fixing ring 9 is provided with a guide ring 13 extending toward the head of the bolt 10, and the helical spring is sleeved on the periphery of the guide ring 13. The head of the bolt 10 extends towards the fixing ring 9 and is provided with a positioning ring 14, and the helical spring is positioned between the guide ring 13 and the positioning ring 14 when compressed. The positioning ring 14 and the guide ring 13 both play a role in guiding and limiting the coil spring, and ensure that the coil spring stretches along the axial direction of the bolt 10.
The inner wall of the guide ring 13 is provided with a limiting ring 12 with the inner diameter smaller than the outer diameter of the threaded section of the bolt 10, and the limiting ring 12 is positioned at one end of the guide ring 13 close to the head of the bolt 10.
As shown in fig. 2, the upper surface of the head of the bolt 10 is provided with a strip-shaped groove 15, so that the bolt 10 can be removed by a screwdriver instead of being screwed by hand. The edge of the head of the bolt 10 is provided with a chamfer 16, and the chamfer 16 may be a chamfer or a fillet. The periphery of the head of the bolt 10 is provided with a plurality of anti-skid projections 17 which are distributed at intervals, the anti-skid projections 17 are arranged along the axial direction of the bolt 10, and the anti-skid projections 17 play a role of anti-skid.
The utility model discloses a working process and beneficial effect as follows:
during disassembly, the bolt 10 is rotated until the bolt 10 is limited by the limiting ring 12 and cannot rotate, at the moment, the bolt 10 is separated from the threaded hole 6, the elastic piece 11 extends, one end of the elastic piece 11 abuts against the fixing ring 9, the other end of the elastic piece 11 abuts against the head of the bolt 10, the bolt 10 cannot be separated from the fixing ring 9 due to the limitation of the limiting ring 12, the fixing ring 9 is clamped with the cover plate 4, and the bolt 10 can be left on the cover plate 4 and is not easy to lose;
during the installation, put into the standing groove with the chip in, put apron 4 in the top of chip, rotatory bolt 10 makes its and base 1 threaded connection, can fix the chip, simple to operate, and elastic component 11 is compressed this moment, exerts elasticity to bolt 10 head, has locking effect, easy dismounting.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a micro-fluidic chip mounting fixture convenient to dismouting, includes base (1), chip standing groove (2) have been seted up to base (1) upper surface, observation hole (3) have been seted up to the bottom of chip standing groove (2), its characterized in that, the opening part of chip standing groove (2) is provided with transparent apron (4), set up mounting hole (5) that correspond with the business turn over liquid mouth position of chip on apron (4), the edge around base (1) is provided with a plurality of screw holes (6), set up through-hole (7) coaxial with a plurality of screw holes (6) on apron (4), joint hole (8) have been seted up to the week side that the upper surface of apron (4) is located through-hole (7), joint has solid fixed ring (9) in joint hole (8), be provided with bolt (10) along its axial in solid fixed ring (9), bolt (10) pass in proper order solid fixed ring (9), through-hole (7) and with screw hole (6) threaded connection, be provided with elastic component (11) between bolt (10) head and solid fixed ring (9), the both ends of elastic component (11) respectively with bolt (10) head, solid fixed ring (9) butt, gu fixed ring (9) inner wall is equipped with spacing ring (12) that the internal diameter is less than bolt (10) screw thread section external diameter.
2. The microfluidic chip fixing clamp convenient to disassemble and assemble according to claim 1, wherein the elastic member (11) is a coil spring, and the coil spring is sleeved on the periphery of the bolt (10).
3. The microfluidic chip fixing clamp convenient to disassemble and assemble according to claim 2, wherein a guide ring (13) extends from one side of the fixing ring (9) facing the head of the bolt (10), and a coil spring is sleeved on the periphery of the guide ring (13).
4. The microfluidic chip fixing clamp convenient to disassemble and assemble according to claim 3, wherein the limiting ring (12) is positioned at one end of the guide ring (13) close to the head of the bolt (10).
5. The microfluidic chip fixing clamp convenient to disassemble and assemble according to claim 3, wherein the head of the bolt (10) extends towards the fixing ring (9) and is provided with a positioning ring (14), and the helical spring is positioned between the guide ring (13) and the positioning ring (14) when being compressed.
6. The microfluidic chip fixing clamp convenient to disassemble and assemble according to claim 1, wherein the upper surface of the head of the bolt (10) is provided with a groove (15).
7. The microfluidic chip fixing clamp convenient to disassemble and assemble according to claim 1, wherein the edge of the head of the bolt (10) is provided with a chamfer (16).
8. The microfluidic chip fixing clamp convenient to disassemble and assemble according to claim 1, wherein the periphery of the head of the bolt (10) is provided with a plurality of anti-slip protrusions (17) distributed at intervals, and the anti-slip protrusions (17) are arranged along the axial direction of the bolt (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920890284.4U CN210097737U (en) | 2019-06-13 | 2019-06-13 | Micro-fluidic chip mounting fixture convenient to dismouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920890284.4U CN210097737U (en) | 2019-06-13 | 2019-06-13 | Micro-fluidic chip mounting fixture convenient to dismouting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210097737U true CN210097737U (en) | 2020-02-21 |
Family
ID=69565087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920890284.4U Active CN210097737U (en) | 2019-06-13 | 2019-06-13 | Micro-fluidic chip mounting fixture convenient to dismouting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210097737U (en) |
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2019
- 2019-06-13 CN CN201920890284.4U patent/CN210097737U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200914 Address after: 215000 south side of Lianyang Road, west side of Longqiao Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province (No. 139, Lianyang Road) Patentee after: Suzhou Deyun Kangrui Biotechnology Co., Ltd Address before: Room h, 15th floor, building 2, 1888 Hongxiang West Road, Xiang'an District, Xiamen, Fujian Province Patentee before: Deyun Kangming (Xiamen) Biotechnology Co.,Ltd. |
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| TR01 | Transfer of patent right |