CN113192412A - Smart city sign based on Bernoulli principle reduces windage - Google Patents
Smart city sign based on Bernoulli principle reduces windage Download PDFInfo
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- CN113192412A CN113192412A CN202110359666.6A CN202110359666A CN113192412A CN 113192412 A CN113192412 A CN 113192412A CN 202110359666 A CN202110359666 A CN 202110359666A CN 113192412 A CN113192412 A CN 113192412A
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- China
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- fixedly connected
- cambered plate
- sign
- bernoulli
- smart city
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
- G09F7/002—Signs, name or number plates, letters, numerals, or symbols; Panels or boards weather-proof panels or boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The invention relates to the technical field of indication boards, and discloses a Bernoulli principle-based indication board for a smart city, which comprises an indication board body, wherein the upper side and the lower side of the indication board body are both fixedly connected with a support frame, the inner side wall of the support frame is hinged with a cambered plate, the bottom of the cambered plate is fixedly connected with a fixed rod, the outer side wall of the fixed rod is connected with a connecting rod in a sliding manner, and one end of the connecting rod is hinged with a compression rod; the pressure of the upside that makes the cambered plate is greater than downside pressure, make the cambered plate to the windward side slope, at this moment, the cambered plate guides some wind direction upwards, shunt, according to the windage formula, the windage is directly proportional with the lifting surface area of object, at this moment, because the cambered plate exports some wind, and then make the lifting surface area of object reduce, reach the purpose that reduces the windage, and simultaneously, because the cambered plate has certain radian, according to the air wall effect, the cambered plate can further guide wind, reach the purpose that further reduces the windage.
Description
Technical Field
The invention relates to the technical field of signs, in particular to a sign for a smart city, which reduces wind resistance based on the Bernoulli principle.
Background
At present, along with the development of wisdom city, more and more city construction need be applied to wisdom city, and wherein, the sign is as indispensable instrument in the city construction, based on wisdom city's design theory, has proposed higher requirement to present city traffic infrastructure construction. The direction indicator is an infrastructure which is built in urban roads, scenic spots, schools, hospitals and other places and used for guiding directions or other marks for people.
To higher or the great sign of area, its resistance to wind ability needs certain requirement, among the prior art, the sign does not possess the function of intelligent regulation windage, receives under the great condition of wind-force at the sign, and the sign easily receives great windage, causes the sign to empty to cause danger, simultaneously, to higher sign, when wasing, comparatively troublesome.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the smart city sign capable of reducing wind resistance based on the Bernoulli principle, which has the advantages of automatically adjusting the angle of the cambered plate by using the Bernoulli principle, guiding wind power, reducing the wind resistance borne by the sign, improving the wind resistance of the sign and automatically cleaning the surface of the sign, and solves the problem that the sign does not have the function of intelligently adjusting the wind resistance, and under the condition that the sign is greatly stressed by wind power, the sign is easily subjected to large wind resistance, so that the sign is toppled over, and dangers are caused, and meanwhile, for higher signs, the sign is troublesome when being cleaned.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a smart city sign capable of reducing wind resistance based on the Bernoulli principle comprises a sign body, wherein support frames are fixedly connected to the upper side and the lower side of the sign body, an arc panel is hinged to the inner side wall of each support frame, a fixed rod is fixedly connected to the bottom of each arc panel, a connecting rod is connected to the outer side wall of each fixed rod in a sliding mode, and a compression rod is hinged to one end of each connecting rod;
the indicating board comprises an indicating board body and is characterized in that compressed air tanks are fixedly connected to the upper side and the lower side of the indicating board body, piston heads are slidably connected to the inner side walls of the compressed air tanks, one sides of the piston heads are fixedly connected with one ends of compression rods, air inlet pipes and air outlet pipes are fixedly connected to the inner side walls of the compressed air tanks, air inlet check valves are movably connected to the inner portions of the air inlet pipes, air outlet check valves are movably connected to the inner portions of the air outlet pipes, spray holes are fixedly connected to the outer side walls of the compressed air tanks, and the air outlet pipes are communicated with the spray heads.
Preferably, one side of the indicator board body is fixedly connected with a fixing buckle, and the inner side wall of the fixing buckle is fixedly connected with a supporting tube.
Preferably, the joint of the support frame and the cambered plate is rotatably connected with a plate shaft, and the outer side wall of the plate shaft is fixedly connected with a torsion spring and a support bearing.
Preferably, both sides of the support bearing are fixedly connected with damping rings, and the inner parts of the damping rings are fixedly connected with limit pins.
Preferably, the upper side and the lower side of the cambered plate are provided with radians, and the upper side radian of the cambered plate is smaller than the lower side radian.
Preferably, the number of the arc panels is two, and the two arc panels are symmetrically distributed according to the center of the indicator board body.
Preferably, the spray holes are in a circular structure, and the hole diameters of the spray holes are gradually reduced from inside to outside.
(III) advantageous effects
Compared with the prior art, the invention provides the intelligent city sign for reducing wind resistance based on the Bernoulli principle, and the intelligent city sign has the following beneficial effects:
1. the intelligent city sign board capable of reducing wind resistance by using Bernoulli principle has the advantages that the arc panel is arranged, the upper side radian of the arc panel is smaller than the lower side radian, the arc panel is fixed on the upper side and the lower side of the sign board body by the support frame, when the sign board is windward, the lower side flow velocity of the arc panel is higher than the upper side flow velocity due to the fact that the upper side radian of the arc panel is smaller than the lower side radian, the pressure intensity of the upper side of the arc panel is larger than the lower side pressure intensity according to the Bernoulli principle, the arc panel inclines towards the windward side, at the moment, part of wind direction is guided upwards by the arc panel to be shunted, the wind resistance is in direct proportion to the stressed area of an object according to a wind resistance formula, at the moment, part of wind is guided out by the arc panel, the stressed area of the object is reduced, the purpose of reducing the wind resistance is achieved, meanwhile, due to the fact that the arc panel has a certain radian, the arc panel can further guide the wind according to an air wall attachment effect, the purpose of further reducing the wind resistance is achieved.
2. The intelligent city sign board using Bernoulli principle to reduce wind resistance, through arranging the fixed rod at the bottom of the cambered plate, the fixed rod is connected with the compression rod through the connecting rod, so that in the rotating process of the cambered plate, the fixed rod is driven to turn over, the fixed rod drives the compression rod on the connecting rod to move transversely, so that the compression rod drives the piston head in the compressed air tank to move, an air inlet pipe and an air outlet pipe are arranged in the compressed air tank, an air inlet one-way valve and an air outlet one-way valve are arranged in the air inlet pipe and the air outlet pipe, so that an air compression structure is formed, in the process of the movement of the piston head, air is pumped into the compressed air tank, then the piston head is pressurized to form high-pressure air, finally the high-pressure air is sprayed out through the spray head attached to the indicator plate body, carry out self-cleaning to the surface of sign, make the dust of sign face blown off by high-pressure gas, and then avoid needing the manual work to carry out abluent trouble.
Drawings
FIG. 1 is a side view of the indicator body and the curved panel of the present invention;
FIG. 2 is a diagram showing the position relationship of the cambered plate when the front face of the present invention faces the wind;
FIG. 3 is a diagram showing the relationship between the positions of the cambered plates when the back face of the present invention faces the wind;
FIG. 4 is a view showing the connection between the arc panel and the supporting frame according to the present invention;
fig. 5 is a sectional view of a compressed gas tank in the present invention.
In the figure: 1. an indicator body; 11. a fixing buckle; 12. supporting a tube; 2. a support frame; 21. a plate shaft; 22. a torsion spring; 23. a support bearing; 231. a damping ring; 232. a spacing pin; 3. a cambered plate; 4. fixing the rod; 41. a connecting rod; 42. a compression rod; 5. a compressed gas tank; 51. a piston head; 52. an air inlet pipe; 53. an air inlet check valve; 54. an air outlet pipe; 55. an air outlet one-way valve; 6. a spray head; 61. and (6) spraying the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a sign for a smart city based on bernoulli's principle to reduce wind resistance comprises a sign body 1, wherein a support frame 2 is fixedly connected to both upper and lower sides of the sign body 1, a fixing buckle 11 is fixedly connected to one side of the sign body 1, a support tube 12 is fixedly connected to the inner side wall of the fixing buckle 11, a plate shaft 21 is rotatably connected to the joint of the support frame 2 and a cambered plate 3, a torsion spring 22 and a support bearing 23 are fixedly connected to the outer side wall of the plate shaft 21, a damping ring 231 is fixedly connected to both sides of the support bearing 23, a limit pin 232 is fixedly connected to the inside of the damping ring 231, the damping ring 231 extrudes the support bearing 23, so that the plate shaft 21 on the support bearing 23 cannot rotate rapidly, the phenomenon that the joint of the support frame 2 and the cambered plate 3 is damaged is avoided, the limit pin 232 limits the support bearing 23, and prevents the cambered plate 3 on the plate shaft 21 from having an excessively large turning angle, the inner side wall of the support frame 2 is hinged with the cambered plates 3, the upper and lower sides of the cambered plates 3 are provided with radians, the upper side radians of the cambered plates 3 are smaller than the lower side radians, the cambered plates 3 are arranged into plate bodies with the upper side radians smaller than the lower side radians, so that the flow velocity of the lower sides of the cambered plates is higher than that of the upper sides, the cambered plates 3 are totally provided with two cambered plates 3, the two cambered plates 3 are symmetrically distributed with reference to the center of the signboard body 1, the two cambered plates 3 simultaneously guide wind on the signboard body 1, the bottom parts of the cambered plates 3 are fixedly connected with the fixed rods 4, the outer side walls of the fixed rods 4 are slidably connected with connecting rods 41, and one ends of the connecting rods 41 are hinged with compression rods 42;
the equal fixedly connected with compressed gas jar 5 in the upper and lower both sides of the instruction tablet body 1, compressed gas jar 5's inside wall sliding connection has piston head 51, one side of piston head 51 and the one end fixed connection of compression pole 42, compressed gas jar 5's inside wall fixedly connected with intake pipe 52 and outlet duct 54, intake pipe 52's inside swing joint has air inlet check valve 53, outlet duct 54's inside swing joint has air outlet check valve 55, compressed gas jar 5's outside wall fixedly connected with shower nozzle 6, orifice 61 has been seted up to shower nozzle 6's inside, orifice 61 is circular structure, orifice 61's aperture reduces from inside to outside gradually, orifice 61's structure is similar with the structure of venturi tube, make high-pressure gas when through orifice 61, spout with higher speed once more, reach the cleaning performance who promotes the sign, outlet duct 54 communicates with shower nozzle 6.
The working principle is as follows: during the use, when the front of the indicator body 1 is windward, wind blows to the cambered plate 3 in parallel, the flow velocity of the lower side of the cambered plate 3 is higher than the flow velocity of the upper side, at the moment, the pressure of the upper side of the cambered plate 3 is greater than the pressure of the lower side, the cambered plate 3 inclines to the windward side, at the moment, the cambered plate 3 guides a part of wind upwards to split the flow, according to a wind resistance formula, the wind resistance is in direct proportion to the windward area of an object, at the moment, because the cambered plate 3 guides a part of wind out, and then the windward area of the indicator body 1 is reduced, and the purpose of reducing the wind resistance is achieved.
The air resistance formula, namely the wind resistance formula, is as follows:
F＝1/2CρSV^2
in the formula:
c: the air resistance coefficient is constant.
ρ: the density of the air.
S: the frontal area of the object.
V: the relative speed of movement of the object and the air.
Please refer to fig. 1 and fig. 2 for the above structure and process.
When the back of the indicator board body 1 is windward, wind blows to the back of the arc panel 3 in parallel, the lower side flow velocity of the arc panel 3 is higher than the upper side flow velocity, at the moment, the pressure of the upper side of the arc panel 3 is greater than the lower side pressure, the arc panel 3 inclines to the leeward side, at the moment, the arc panel 3 guides a part of wind upwards to split the wind, according to the wind resistance formula, the wind resistance is in direct proportion to the wind-bearing area of an object, at the moment, because the arc panel 3 guides a part of wind, and then the back of the indicator board body 1 is reduced in wind-bearing area, and the purpose of reducing the wind resistance is achieved.
Please refer to fig. 1 and fig. 3 for the above structure and process.
When the wind power is small or no wind, the torsion spring 22 on the plate shaft 21 controls the plate shaft 21 to prevent the cambered plate 3 from rotating, and after the wind blows, the torsion spring 22 drives the cambered plate 3 to reset to enable the cambered plate 3 to be in a parallel state with the indicator board body 1.
The structure and process are shown in fig. 1 and 4.
Meanwhile, the cambered plate 3 drives the fixed rod 4 to turn over in the rotating process, the fixed rod 4 drives the compression rod 42 on the connecting rod 41 to transversely move, the compression rod 42 drives the piston head 51 in the compression air tank 5 to move, air is pumped into the compression air tank 5 in the moving process of the piston head 51 and then is pressurized by the piston head 51 to form high-pressure air, and finally the high-pressure air is sprayed out through the spray head 6 attached to the indicator plate body 1 to automatically clean the surface of the indicator plate body 1, so that dust on the indicator plate surface is blown off by the high-pressure air.
Please refer to fig. 1 to 5 for the above structure and process.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a reduce sign for wisdom city of windage based on Bernoulli's principle, includes the indicator body (1), its characterized in that: the upper side and the lower side of the indicator board body (1) are fixedly connected with supporting frames (2), the inner side wall of each supporting frame (2) is hinged with a cambered plate (3), the bottom of each cambered plate (3) is fixedly connected with a fixed rod (4), the outer side wall of each fixed rod (4) is connected with a connecting rod (41) in a sliding mode, and one end of each connecting rod (41) is hinged with a compression rod (42);
the equal fixedly connected with compressed gas jar (5) in upper and lower both sides of indicator board body (1), the inside wall sliding connection of compressed gas jar (5) has piston head (51), one side of piston head (51) with the one end fixed connection of compression pole (42), the inside wall fixedly connected with intake pipe (52) and outlet duct (54) of compressed gas jar (5), the inside swing joint of intake pipe (52) has inlet check valve (53), the inside swing joint of outlet duct (54) has outlet check valve (55), the lateral wall fixedly connected with shower nozzle (6) of compressed gas jar (5), orifice (61) have been seted up to the inside of shower nozzle (6), outlet duct (54) with shower nozzle (6) intercommunication.
2. A sign for a smart city based on bernoulli's principle to reduce wind resistance, in which: one side of the indicator board body (1) is fixedly connected with a fixing buckle (11), and the inner side wall of the fixing buckle (11) is fixedly connected with a supporting tube (12).
3. A sign for a smart city based on bernoulli's principle to reduce wind resistance, in which: the supporting frame (2) with the junction of cambered plate (3) rotates and is connected with board axle (21), the lateral wall fixedly connected with torsional spring (22) and support bearing (23) of board axle (21).
4. A sign for a smart city based on bernoulli's principle to reduce wind resistance, wherein: the damping ring (231) is fixedly connected to the two sides of the supporting bearing (23), and the limiting pin (232) is fixedly connected to the inner portion of the damping ring (231).
5. A sign for a smart city based on bernoulli's principle to reduce wind resistance, in which: the upper side and the lower side of the cambered plate (3) are provided with radians, and the upper side radian of the cambered plate (3) is smaller than the lower side radian.
6. A sign for a smart city based on bernoulli's principle to reduce wind resistance, in which: the two arc panels (3) are arranged, and the two arc panels (3) are symmetrically distributed according to the center of the indicator board body (1).
7. A sign for a smart city based on bernoulli's principle to reduce wind resistance, in which: the spray holes (61) are of a circular structure, and the aperture of each spray hole (61) is gradually reduced from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359666.6A CN113192412A (en) | 2021-04-02 | 2021-04-02 | Smart city sign based on Bernoulli principle reduces windage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359666.6A CN113192412A (en) | 2021-04-02 | 2021-04-02 | Smart city sign based on Bernoulli principle reduces windage |
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| CN113192412A true CN113192412A (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110359666.6A Pending CN113192412A (en) | 2021-04-02 | 2021-04-02 | Smart city sign based on Bernoulli principle reduces windage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717686A (en) * | 2023-08-10 | 2023-09-08 | 连云港鼎晟物联科技有限公司 | Air pollution monitoring equipment adjusted according to wind direction |
-
2021
- 2021-04-02 CN CN202110359666.6A patent/CN113192412A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717686A (en) * | 2023-08-10 | 2023-09-08 | 连云港鼎晟物联科技有限公司 | Air pollution monitoring equipment adjusted according to wind direction |
| CN116717686B (en) * | 2023-08-10 | 2023-10-10 | 连云港鼎晟物联科技有限公司 | Air pollution monitoring equipment adjusted according to wind direction |
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