CN111664410A - Energy-saving marine warning equipment based on electromagnetic effect - Google Patents
Energy-saving marine warning equipment based on electromagnetic effect Download PDFInfo
- Publication number
- CN111664410A CN111664410A CN202010633009.1A CN202010633009A CN111664410A CN 111664410 A CN111664410 A CN 111664410A CN 202010633009 A CN202010633009 A CN 202010633009A CN 111664410 A CN111664410 A CN 111664410A
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- Prior art keywords
- power generation
- led lamp
- mounting plate
- cavity
- floating block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/04—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a generator
- F21S9/046—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a generator driven by hydropower, e.g. by water powered turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/20—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
- F21W2111/04—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for waterways
- F21W2111/047—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for waterways for light-buoys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Audible And Visible Signals (AREA)
Abstract
The invention discloses energy-saving marine warning equipment based on an electromagnetic effect, which comprises a floating block, wherein the upper end of the floating block is fixedly connected with a mounting plate, two power generation cavities are symmetrically arranged in the floating block, two LED lamp bodies are arranged above the mounting plate, and the lower end of each LED lamp body is connected with the upper end of the mounting plate through two guiding telescopic rods; the two power generation mechanisms are respectively located in the two power generation cavities, each power generation mechanism comprises a spiral coil arranged in each power generation cavity, a magnetic block is arranged in each power generation cavity and located on the inner side of each spiral coil, and two rectifier bridges are arranged in the mounting plate. This warning equipment converts the produced mechanical energy of wave into the electric energy, then makes warning equipment warn, does not need external battery, can keep the warning effect that lasts, still is equipped with complementary unit simultaneously for the effect of warning is better.
Description
Technical Field
The invention relates to the field of warning equipment, in particular to energy-saving marine warning equipment based on an electromagnetic effect.
Background
The invention of the buoy greatly reduces the accident rate of maritime shipping, and for the existing maritime warning equipment, the following problems exist in the using process;
the warning mode of current marine buoy is generally that it has pasted reflective strip on it, and reflective strip can only play the effect of warning under the condition of light, and the warning effect of the equipment of this kind of warning is relatively poor, and if adopt traditional battery type warning equipment, has the electric energy consumption of battery to run out the possibility, so when guaranteeing high warning effect, warning that can last is our problem that needs to consider.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides energy-saving marine warning equipment based on an electromagnetic effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
an energy-saving marine warning device based on an electromagnetic effect comprises a floating block, wherein the upper end of the floating block is fixedly connected with a mounting plate, two power generation cavities are symmetrically arranged in the floating block, two LED lamp bodies are arranged above the mounting plate, and the lower end of each LED lamp body is connected with the upper end of the mounting plate through two guiding telescopic rods; the two power generation mechanisms are respectively positioned in the two power generation cavities, each power generation mechanism comprises a spiral coil arranged in each power generation cavity, a magnetic block is arranged in each power generation cavity and positioned on the inner side of each spiral coil, two rectifier bridges are arranged in the mounting plate, and each spiral coil, each rectifier bridge and the LED lamp body form a closed loop through a lead; the two lifting mechanisms are respectively matched with the two LED lamp bodies and comprise two piston plates which are connected in the power generation cavity in a sliding mode, the two piston plates are respectively positioned above and below the spiral coil, the backward sides of the two piston plates are respectively elastically connected with the inner top and the inner bottom of the power generation cavity through two connecting springs, the lower ends of the two LED lamp bodies are connected with the upper end of the mounting plate through telescopic airbags, and the telescopic airbags are communicated with the inner top of the power generation cavity through connecting pipes;
the auxiliary mechanism comprises a transverse cavity arranged in the floating block, a sliding plate sliding leftwards and rightwards is arranged in the transverse cavity, the transverse cavity is located at the left side space of the sliding plate and is communicated with the inner bottom of one power generation cavity through a connecting channel, a rack is fixedly connected to the right side of the sliding plate, a rotating rod is vertically connected to the transverse cavity in a rotating mode, a gear matched with the rack is fixedly sleeved on the rotating rod, and the upper end of the rotating rod extends to the outside and is fixedly connected with a double-sided reflector.
Preferably, each power generation cavity is located between two piston plates, the space is communicated with the outside through a communicating pipe, and the inner bottom of the power generation cavity located on the right side is communicated with the communicating pipe through a connecting pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. when the device is used, the device is placed on the sea surface, when wind and waves exist on the sea, the whole floating block can shake, the shaking of the floating block can enable the magnetic block in the power generation cavity to move up and down, the magnetic field formed by the magnetic block and the spiral coil to be cut due to the up-and-down movement of the magnetic block, the spiral coil is electrified, the spiral coil can generate alternating current, the alternating current is converted into direct current through the rectifier bridge and is transmitted to the LED lamp body, and the LED lamp body emits light to warn; and at this in-process, when the magnetic path shifts up, can make the piston board shift up, then will generate electricity the air of intracavity and arrange into flexible gasbag for flexible gasbag extension, when the piston board shifts down, receive coupling spring's elastic action, the piston board that is located the top can the recovering position, at this moment flexible gasbag can the reconversion, this in-process promptly, the LED lamp body can shift up and move down, makes the effect of warning better.
2. In this in-process, when the magnetic path moves down, can make the piston board that is located the below move down, the piston board at this moment moves down and can be with the horizontal chamber of discharging of electricity generation intracavity air, make the sliding plate move to the right, when the magnetic path shifts up, receive the elastic action of the connecting spring of below, the piston board can shift up, the effect of being pressed by the air at this moment, the sliding plate can move to the left, and the removal about of sliding plate can drive the rack and control, the removal about of rack can drive the reciprocal rotation of dwang, the dwang can drive the swing of two-sided reflector, reflect light, the effect of warning is better, do not need external battery, just can keep lasting warning effect.
Drawings
FIG. 1 is a schematic structural diagram of an energy-saving marine warning device based on electromagnetic effect according to the present invention;
fig. 2 is a schematic view of the operating state of fig. 1.
In the figure: the LED lamp comprises a floating block 1, a power generation cavity 2, a mounting plate 3, a spiral coil 4, a magnetic block 5, a connecting spring 6, a piston plate 7, a connecting channel 8, a sliding plate 9, a transverse cavity 10, a rack 11, a gear 12, a rotating rod 13, a double-sided reflector 14, a connecting pipe 15, a telescopic air bag 16, a guide telescopic rod 17, an LED lamp body 18, a communicating pipe 19 and a rectifier bridge 20.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-2, an energy-saving marine warning device based on electromagnetic effect comprises a floating block 1, wherein the upper end of the floating block 1 is fixedly connected with a mounting plate 3, two power generation cavities 2 are symmetrically arranged in the floating block 1, two LED lamp bodies 18 are arranged above the mounting plate 3, and the lower end of each LED lamp body 18 is connected with the upper end of the mounting plate 3 through two guiding telescopic rods 17;
the two power generation mechanisms are respectively positioned in the two power generation cavities 2 and comprise spiral coils 4 arranged in the power generation cavities 2, magnetic blocks 5 are arranged in the power generation cavities 2, the magnetic blocks 5 are positioned on the inner sides of the spiral coils 4, two rectifier bridges 20 are arranged in the mounting plate 3, and the spiral coils 4, the rectifier bridges 20 and the LED lamp body 18 form a closed loop through conducting wires;
two lifting mechanisms, the two lifting mechanisms are respectively matched with the two LED lamp bodies 18, each lifting mechanism comprises two piston plates 7 which are slidably connected in the power generation cavity 2, the two piston plates 7 are respectively positioned above and below the spiral coil 4, the back sides of the two piston plates 7 are respectively elastically connected with the inner top and the inner bottom of the power generation cavity 2 through two connecting springs 6, the lower ends of the two LED lamp bodies 18 are both connected with the upper end of the mounting plate 3 through a telescopic air bag 16, the telescopic air bag 16 is communicated with the inner top of the power generation cavity 2 through a connecting pipe 15, when the magnetic block 5 moves upwards, the piston plates 7 move upwards, then air in the power generation cavity 2 is discharged into the telescopic air bags 16, the telescopic air bags 16 are expanded, when the piston plates 7 move downwards, the piston plates 7 positioned above can recover to the original position under the elastic action of the connecting springs 6, and at the moment, the telescopic air bags 16 can recover to the original position, namely, in the process, the LED lamp body 18 moves up and down, so that the warning effect is good;
auxiliary mechanism, auxiliary mechanism is including setting up horizontal chamber 10 in kicking block 1, be equipped with in horizontal chamber 10 and be used for horizontal slip sliding plate 9, horizontal chamber 10 is located the left side space of sliding plate 9 and the interior bottom of one of them electricity generation chamber 2 and passes through interface channel 8 intercommunication, the right side fixedly connected with rack 11 of sliding plate 9, vertical rotation is connected with dwang 13 in horizontal chamber 10, fixed cup jointing has 11 matched with gears 12 with rack on the dwang 13, the upper end of dwang 13 extends to external world and fixedly connected with double-sided reflector 14.
Wherein, every electricity generation chamber 2 is located space between two piston plates 7 and all communicates through communicating pipe 19 with the external world, and the interior bottom that is located the electricity generation chamber 2 on right side communicates through connecting pipe and communicating pipe 19, guarantees that equipment can move.
When the device is used, the device is placed on the sea surface, when wind and waves exist on the sea, the whole floating block 1 can shake, the magnetic block 5 in the power generation cavity 2 can move up and down due to the shaking of the floating block 1, the magnetic field formed by the magnetic block 5 and the spiral coil 4 can be cut due to the up-and-down movement of the magnetic block 5, the spiral coil 4 is electrified, the spiral coil 4 can generate alternating current, the alternating current is converted into direct current through the rectifier bridge 20 and is transmitted to the LED lamp body 18, and the LED lamp body 18 emits light to warn;
in the process, when the magnetic block 5 moves upwards, the piston plate 7 moves upwards, then the air in the power generation cavity 2 is discharged into the telescopic air bag 16, so that the telescopic air bag 16 expands, when the piston plate 7 moves downwards, the piston plate 7 positioned above the piston plate can restore to the original position under the elastic action of the connecting spring 6, and the telescopic air bag 16 can restore to the original position at the moment, namely in the process, the LED lamp body 18 moves upwards and downwards, so that the warning effect is good;
it is worth mentioning, in this in-process, when magnetic path 5 moves down, can make the piston plate 7 that is located the below move down, piston plate 7 at this moment moves down and can be discharged into horizontal chamber 10 with the interior air of power generation chamber 2, make sliding plate 9 move to the right, when magnetic path 5 moves up, receive the elastic action of connecting spring 6 of below, piston plate 7 can move up, the pneumatics effect of this moment, sliding plate 9 can move to the left, and the removal about of sliding plate 9 can drive the removal about rack 11, the removal about rack 11 drives the reciprocal rotation of dwang 13, dwang 13 can drive the swing of two-sided reflector 14, reflect light, the effect of warning is better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. An energy-saving marine warning device based on electromagnetic effect, comprising:
the LED lamp comprises a floating block (1), wherein the upper end of the floating block (1) is fixedly connected with a mounting plate (3), two power generation cavities (2) are symmetrically arranged in the floating block (1), two LED lamp bodies (18) are arranged above the mounting plate (3), and the lower end of each LED lamp body (18) is connected with the upper end of the mounting plate (3) through two guiding telescopic rods (17);
the LED lamp comprises two power generation mechanisms, wherein the two power generation mechanisms are respectively positioned in two power generation cavities (2), each power generation mechanism comprises a spiral coil (4) arranged in each power generation cavity (2), a magnetic block (5) is arranged in each power generation cavity (2), the magnetic blocks (5) are positioned on the inner sides of the spiral coils (4), two rectifier bridges (20) are arranged in a mounting plate (3), and the spiral coils (4), the rectifier bridges (20) and an LED lamp body (18) form a closed loop through wires;
the two lifting mechanisms are respectively matched with the two LED lamp bodies (18), each lifting mechanism comprises two piston plates (7) which are connected in the power generation cavity (2) in a sliding mode, the two piston plates (7) are respectively located above and below the spiral coil (4), the two piston plates (7) are elastically connected with the inner top and the inner bottom of the power generation cavity (2) through two connecting springs (6) towards the back side, the lower ends of the two LED lamp bodies (18) are connected with the upper end of the mounting plate (3) through telescopic air bags (16), and the telescopic air bags (16) are communicated with the inner top of the power generation cavity (2) through connecting pipes (15);
the auxiliary mechanism comprises a transverse cavity (10) arranged in a floating block (1), a sliding plate (9) capable of sliding left and right is arranged in the transverse cavity (10), the transverse cavity (10) is located at the left side space of the sliding plate (9) and communicated with the inner bottom of one power generation cavity (2) through a connecting channel (8), a rack (11) is fixedly connected to the right side of the sliding plate (9), a rotating rod (13) is vertically and rotatably connected in the transverse cavity (10), a gear (12) matched with the rack (11) is fixedly sleeved on the rotating rod (13), and the upper end of the rotating rod (13) extends to the outside and is fixedly connected with a double-faced reflecting mirror (14).
2. Energy-saving marine warning equipment based on electromagnetic effect according to claim 1, characterized in that the space between two piston plates (7) of each power generation chamber (2) is communicated with the outside through a communication pipe (19), and the inner bottom of the power generation chamber (2) on the right side is communicated with the communication pipe (19) through a connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633009.1A CN111664410A (en) | 2020-07-02 | 2020-07-02 | Energy-saving marine warning equipment based on electromagnetic effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633009.1A CN111664410A (en) | 2020-07-02 | 2020-07-02 | Energy-saving marine warning equipment based on electromagnetic effect |
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| Publication Number | Publication Date |
|---|---|
| CN111664410A true CN111664410A (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010633009.1A Pending CN111664410A (en) | 2020-07-02 | 2020-07-02 | Energy-saving marine warning equipment based on electromagnetic effect |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112089922A (en) * | 2020-10-16 | 2020-12-18 | 李朝霞 | Infusion support with liquid replacement reminding function for operating room of emergency department |
| CN112172641A (en) * | 2020-10-21 | 2021-01-05 | 德清县丰润电光源有限公司 | Drying type foot pad for new energy automobile |
| CN112193367A (en) * | 2020-10-20 | 2021-01-08 | 孙璐 | High-warning-performance offshore energy-saving buoy |
| CN112289238A (en) * | 2020-11-16 | 2021-01-29 | 牛永耀 | Open-air waterfall danger warning equipment |
| CN112344687A (en) * | 2020-11-09 | 2021-02-09 | 徐守珍 | Energy-saving umbrella water throwing device |
| CN112376460A (en) * | 2020-11-18 | 2021-02-19 | 柏丹丹 | Isolation pier with alarm function for windy areas |
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| CN108239942A (en) * | 2018-01-30 | 2018-07-03 | 江苏瑞沃建设集团有限公司 | A kind of lift intelligent transportation road condition advisory device |
| CN207690408U (en) * | 2017-10-13 | 2018-08-03 | 国网江苏省电力有限公司灌云县供电分公司 | A kind of power equipment alarming device |
| CN110323916A (en) * | 2019-08-03 | 2019-10-11 | 浙江格瑶科技股份有限公司 | A kind of power generator of sea warning |
| CN110966135A (en) * | 2020-01-02 | 2020-04-07 | 余姚心智新能源科技有限公司 | Wharf sea wave power generation device convenient to clean |
| US20200172203A1 (en) * | 2018-11-30 | 2020-06-04 | Zhejiang Ocean University | Marine monitoring buoy with improved structure |
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2020
- 2020-07-02 CN CN202010633009.1A patent/CN111664410A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207690408U (en) * | 2017-10-13 | 2018-08-03 | 国网江苏省电力有限公司灌云县供电分公司 | A kind of power equipment alarming device |
| CN108239942A (en) * | 2018-01-30 | 2018-07-03 | 江苏瑞沃建设集团有限公司 | A kind of lift intelligent transportation road condition advisory device |
| US20200172203A1 (en) * | 2018-11-30 | 2020-06-04 | Zhejiang Ocean University | Marine monitoring buoy with improved structure |
| CN110323916A (en) * | 2019-08-03 | 2019-10-11 | 浙江格瑶科技股份有限公司 | A kind of power generator of sea warning |
| CN110966135A (en) * | 2020-01-02 | 2020-04-07 | 余姚心智新能源科技有限公司 | Wharf sea wave power generation device convenient to clean |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112089922A (en) * | 2020-10-16 | 2020-12-18 | 李朝霞 | Infusion support with liquid replacement reminding function for operating room of emergency department |
| CN112193367A (en) * | 2020-10-20 | 2021-01-08 | 孙璐 | High-warning-performance offshore energy-saving buoy |
| CN112172641A (en) * | 2020-10-21 | 2021-01-05 | 德清县丰润电光源有限公司 | Drying type foot pad for new energy automobile |
| CN112344687A (en) * | 2020-11-09 | 2021-02-09 | 徐守珍 | Energy-saving umbrella water throwing device |
| CN112289238A (en) * | 2020-11-16 | 2021-01-29 | 牛永耀 | Open-air waterfall danger warning equipment |
| CN112376460A (en) * | 2020-11-18 | 2021-02-19 | 柏丹丹 | Isolation pier with alarm function for windy areas |
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