CN111252227A - Water droplet collection type unpowered self-driven miniature ship - Google Patents
Water droplet collection type unpowered self-driven miniature ship Download PDFInfo
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- CN111252227A CN111252227A CN202010084942.8A CN202010084942A CN111252227A CN 111252227 A CN111252227 A CN 111252227A CN 202010084942 A CN202010084942 A CN 202010084942A CN 111252227 A CN111252227 A CN 111252227A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H2011/006—Marine propulsion by water jets with propulsive medium supplied from sources external to propelled vessel, e.g. water from public water supply
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Abstract
The invention relates to a water drop collection type unpowered self-driven miniature ship which comprises a super-hydrophobic ship body, a retainer, a water collection device, super-hydrophilic wedge-shaped patterns and super-hydrophilic water jet inclined holes. The super-hydrophobic ship body is connected with the retainer through bolts or welded, and the water collecting device is connected with the retainer through the bolts, so that the angle of the water collecting device is convenient to adjust. The upper surface of the water collecting device is processed with a super-hydrophilic wedge-shaped pattern, and the rest part is a super-hydrophobic area. The super-hydrophilic water jet inclined hole is obtained by processing the surface of the super-hydrophobic ship body, the axis direction of the inclined hole forms a certain angle with the advancing direction of the micro ship, and the inclined hole is positioned right below a water outlet at the tail end of the super-hydrophilic wedge-shaped pattern. The invention has the advantages of cleanness, no pollution, high transportation speed and the like, and can realize unpowered self-driven transportation by collecting water drops.
Description
Technical Field
The invention belongs to the technical field of self-driven transportation devices, and relates to a water drop collection type unpowered self-driven miniature ship.
Background
The unpowered self-driven transportation is directed transportation which can be spontaneously realized without an external power source or an electric driving device, and has important application value in the fields of microfluid control, mist collection, trace drug delivery and the like. The prior unpowered self-driving mode can be divided into a catalytic driving mode and an external energy field driving mode according to different driving principles. The catalytic driving type means that a specific catalyst is coated on the device, and chemical energy is directly converted into mechanical energy through catalytic action so as to push the structure to realize self-driving movement. The document Advanced Materials,2015,27,4411 reports a catalyst of Pt and MnO2And (3) fixing the nano particles on the tail part of the 3D printed bionic fish, placing the bionic fish on the surface of hydrogen peroxide, and decomposing hydrogen peroxide into a large number of oxygen bubbles by the nano particles on the tail part of the bionic fish and pushing the designed bionic fish to move forwards. However, the application range of the design is small, the design is limited to a specific hydrogen peroxide environment, the driving mode is severe, the motion track of the bionic fish is irregular, and the large-scale application of the mode in actual industrial production is limited. The external energy field driving type is that a driving force is generated under the action of an external energy field (such as a magnetic field, an electric field and the like) so as to propel the structure to realize self-driving motion. The literature Nature Communications,2019,9,3944 reports that a bionic multi-legged soft robot is designed by mixing magnetic particles into Polydimethylsiloxane (PDMS), and the soft robot can realize rapid movement on different surfaces through the control of a magnetic manipulator. The document Nature Materials,2007,6,235 reports that by applying an alternating electric field outside a micro-semiconductor diode, the resulting local electroosmotic flow can push the diode in the direction of the cathode or anode. In summary, the conventional unpowered self-driven method has the disadvantages of using toxic chemical reagents or applying external energy field.
Disclosure of Invention
The invention aims to provide a green and clean miniature ship capable of realizing unpowered self-driving by collecting water drops.
The technical scheme of the invention is as follows:
a water drop collection type unpowered self-driven miniature ship comprises a super-hydrophobic ship body 1, a retainer 2, a water collection device 3, a super-hydrophilic wedge-shaped pattern 4 and a super-hydrophilic water jet inclined hole 5. The surface of the super-hydrophobic ship body 1 needs to have super-hydrophobicity, and the contact angle of the super-hydrophobic ship body to water is more than 150 degrees; the retainer 2 is mounted on the super-hydrophobic hull 1 by means of bolting or welding. The water collecting device (3) is arranged on the retainer 2 in a bolt connection mode, and the inclination angle of the water collecting device (3) can be adjusted to be 10-40 degrees. The water collecting device 3 can be made of metal or plastic, the super-hydrophilic wedge-shaped pattern 4 with the tail end width larger than 0.15mm is processed on the upper surface of the water collecting device 3 and can be obtained through a mask electrochemical etching method or a laser etching method, the contact angle of the super-hydrophilic wedge-shaped pattern 4 to water is not more than 10 degrees, the area of the surface of the water collecting device 3 except the super-hydrophilic wedge-shaped pattern 4 has super-hydrophobicity, and the contact angle to water is not less than 150 degrees. The super-hydrophilic water jet inclined hole 5 is obtained by processing the surface of the super-hydrophobic ship body 1, the included angle between the axis direction of the super-hydrophilic water jet inclined hole 5 and the advancing direction of the micro ship is 20-60 degrees, the processing range of the diameter of the big end of the super-hydrophilic water jet inclined hole 5 can be 0.35-0.80 mm, and the processing range of the diameter of the small end of the super-hydrophilic water jet inclined hole 5 can be 0.20-0.80 mm. The end water outlet of the super-hydrophilic wedge-shaped pattern 4 is positioned right above the super-hydrophilic water jet inclined hole 5, and water drops collected by the water collecting device (3) can be transported to the position above the super-hydrophilic water jet inclined hole 5 through the super-hydrophilic wedge-shaped pattern 4. The transport speed of the micro-ship is controlled by changing the inclination angle of the water collecting device 3, the end width and wedge angle of the super-hydrophilic wedge pattern 4, and the size and inclination angle of the super-hydrophilic water jet inclined holes 5.
Compared with the prior unpowered self-driving device, the invention has the following advantages due to the adoption of the structure:
(1) the invention has certain structural advantages, does not need complex structural design, and has simple material and wide application range.
(2) The invention can realize the collection of water drops, the collected water drops are conveyed to the upper part of the super-hydrophilic water jet inclined hole through the super-hydrophilic wedge-shaped pattern, the water jet along the axial direction of the super-hydrophilic water jet inclined hole is generated under the action of Laplace pressure, the reaction force of the water jet is used as the driving force of the micro-ship, and the whole movement process has no external energy field action and chemical energy conversion, thereby being a real green energy driving mode.
(3) The invention has high movement speed, and can generate continuous driving force by collecting water drops, thereby really realizing long-distance transportation.
(4) The movement speed of the invention is controllable, and the speed of the micro-ship is changed by adjusting the inclination angle of the water collecting device, the width of the tail end water outlet of the super-hydrophilic wedge-shaped pattern, the wedge angle and the size and the angle of the super-hydrophilic water jet inclined hole.
Drawings
Fig. 1 is a schematic structural view of a water droplet collecting type unpowered self-propelled micro-boat of the present invention.
Fig. 2 is a schematic structural view of the water collecting device and the super-hydrophilic wedge pattern of fig. 1.
In fig. 1, 1 is a super-hydrophobic hull, 2 is a retainer, 3 is a water collecting device, 4 is a super-hydrophilic wedge pattern, and 5 is a super-hydrophilic water jet inclined hole;
in fig. 2, a is a super hydrophobic region of the water collecting means 3, b is a super hydrophilic wedge pattern region of the water collecting means 3.
Detailed Description
The invention is further explained with reference to the drawings and technical solutions.
A water drop collection type unpowered self-driven micro-ship is shown in figure 1 and comprises a super-hydrophobic ship body 1, a retainer 2, a water collecting device 3, super-hydrophilic wedge-shaped patterns 4 and super-hydrophilic water jet inclined holes 5. The super-hydrophobic hull 1 is made of 1060 aluminum sheets with the thickness of 0.6mm, the length of the hull is 40mm, the width of the hull is 15mm, and the contact angle of the super-hydrophobic hull to water is not less than 150 degrees. The super-hydrophobic ship body 1 is fixedly connected with the two retainers 2 through welding, the retainers 2 are connected with the water collecting device 3 through bolts, the inclination angle of the water collecting device 3 is adjusted to be 30 degrees, super-hydrophilic wedge-shaped patterns 4 are processed on the water collecting device 3 through laser etching, and the tail ends of the super-hydrophilic wedge-shaped patterns 4 are located 5mm right above the super-hydrophilic water jet inclined holes 5. And a laser etching mode is adopted to process a super hydrophilic water jet inclined hole 5 with an included angle of 45 degrees with the super hydrophobic ship body 1, the aperture size is 0.47mm, and the distance between the inclined hole and the stern of the miniature ship is about 5 mm.
The specific use mode is as follows: artificial rainfall was simulated by dropping water drops onto the water collecting device 3 using a syringe. The method comprises the steps of placing a micro ship on the water surface, capturing and transporting water drops to the tail end of a pattern by the super-hydrophilic wedge-shaped pattern 4, dripping the water drops above the super-hydrophilic water jet inclined hole 5 after the water drops are gathered to a certain volume, generating water jet along the axial direction of the inclined hole under the action of Laplace pressure, pushing the micro ship to continuously move forwards by the component of the reaction force of the water jet, and enabling the moving speed to reach 6.5 mm/s.
Claims (1)
1. A water drop collection type unpowered self-driven micro ship is characterized by comprising a super-hydrophobic ship body (1), a retainer (2), a water collecting device (3), a super-hydrophilic wedge-shaped pattern (4) and super-hydrophilic water jet inclined holes (5); the surface of the super-hydrophobic ship body (1) needs to have super-hydrophobicity, and the contact angle of the super-hydrophobic ship body to water is larger than 150 degrees; the retainer (2) is arranged on the super-hydrophobic ship body (1) in a bolt connection or welding mode; the water collecting device (3) is arranged on the retainer (2) in a bolt connection mode, the inclination angle of the water collecting device (3) can be adjusted to be 10-40 degrees; the water collecting device (3) is made of metal or plastic, a super-hydrophilic wedge-shaped pattern (4) with the tail end width larger than 0.15mm is processed on the upper surface of the water collecting device (3) and can be obtained through a mask electrochemical etching method or a laser etching method, the contact angle of the super-hydrophilic wedge-shaped pattern (4) to water is not more than 10 degrees, the area of the surface of the water collecting device (3) except the super-hydrophilic wedge-shaped pattern (4) has super-hydrophobicity, and the contact angle to water is not less than 150 degrees; the super-hydrophilic water jet inclined hole (5) is obtained by processing the surface of the super-hydrophobic ship body (1), the included angle between the axial direction of the super-hydrophilic water jet inclined hole (5) and the advancing direction of the miniature ship is 20-60 degrees, the super-hydrophilic water jet inclined hole (5) is a through hole with the diameter of the large end being 0.35-0.80 mm and the diameter of the small end being 0.20-0.80 mm; a water outlet at the tail end of the super-hydrophilic wedge-shaped pattern (4) is positioned right above the super-hydrophilic water jet inclined hole (5), and water drops collected by the water collecting device (3) are transported to the position above the super-hydrophilic water jet inclined hole (5) through the super-hydrophilic wedge-shaped pattern (4); the transportation speed of the micro-ship is controlled by changing the inclination angle of the water collecting device (3), the end width and wedge angle of the super-hydrophilic wedge-shaped pattern (4), and the size and inclination angle of the super-hydrophilic water jet inclined holes (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084942.8A CN111252227B (en) | 2020-02-10 | 2020-02-10 | Water droplet collection type unpowered self-driven miniature ship |
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| CN202010084942.8A CN111252227B (en) | 2020-02-10 | 2020-02-10 | Water droplet collection type unpowered self-driven miniature ship |
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| CN111252227A true CN111252227A (en) | 2020-06-09 |
| CN111252227B CN111252227B (en) | 2021-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352457A (en) * | 2021-12-29 | 2022-04-15 | 大连理工大学 | Raindrop driven rotary motion device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107209A (en) * | 2015-08-24 | 2015-12-02 | 吉首大学 | Tension column type molecular dynamic minitype ship |
| CN108104078A (en) * | 2017-12-18 | 2018-06-01 | 华中科技大学 | It is a kind of based on wedge shape the tree-like spontaneous orientation transport of shape to be divided to collect flow passage structure |
| CN108816702A (en) * | 2018-06-28 | 2018-11-16 | 清华大学 | A kind of driving catchment surface and preparation method certainly with super thin-super hydrophilic structure |
| CN109364586A (en) * | 2018-08-31 | 2019-02-22 | 广东工业大学 | A kind of steam collection device and preparation method thereof with very low power runner |
| CN110554016A (en) * | 2019-09-16 | 2019-12-10 | 中国矿业大学 | Self-driven micrometer motor for detecting explosive through fluorescence and synthesis and use method thereof |
-
2020
- 2020-02-10 CN CN202010084942.8A patent/CN111252227B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107209A (en) * | 2015-08-24 | 2015-12-02 | 吉首大学 | Tension column type molecular dynamic minitype ship |
| CN108104078A (en) * | 2017-12-18 | 2018-06-01 | 华中科技大学 | It is a kind of based on wedge shape the tree-like spontaneous orientation transport of shape to be divided to collect flow passage structure |
| CN108816702A (en) * | 2018-06-28 | 2018-11-16 | 清华大学 | A kind of driving catchment surface and preparation method certainly with super thin-super hydrophilic structure |
| CN109364586A (en) * | 2018-08-31 | 2019-02-22 | 广东工业大学 | A kind of steam collection device and preparation method thereof with very low power runner |
| CN110554016A (en) * | 2019-09-16 | 2019-12-10 | 中国矿业大学 | Self-driven micrometer motor for detecting explosive through fluorescence and synthesis and use method thereof |
Non-Patent Citations (3)
| Title |
|---|
| HUANG S, SONG J, LU Y, ET AL: "Power-Free Water Pump Based on Superhydrophobic Surface: Generation", 《JOURNAL OF MATERIALS CHEMISTRY A》 * |
| 宋金龙 等: "极端润湿性表面研究与应用进展", 《科技导报》 * |
| 赵宁 等: "超疏水表面的研究进展", 《化学进展》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352457A (en) * | 2021-12-29 | 2022-04-15 | 大连理工大学 | Raindrop driven rotary motion device |
| CN114352457B (en) * | 2021-12-29 | 2022-09-02 | 大连理工大学 | Raindrop driven rotary motion device |
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| CN111252227B (en) | 2021-04-20 |
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