CN114411625A - Flood control device with good protection effect - Google Patents
Flood control device with good protection effect Download PDFInfo
- Publication number
- CN114411625A CN114411625A CN202210056333.0A CN202210056333A CN114411625A CN 114411625 A CN114411625 A CN 114411625A CN 202210056333 A CN202210056333 A CN 202210056333A CN 114411625 A CN114411625 A CN 114411625A
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- China
- Prior art keywords
- fixedly connected
- belt pulley
- sealing ring
- rotating rod
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
- E02B3/102—Permanently installed raisable dykes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to the technical field of municipal flood control, and discloses a flood control device with a good protection effect, which comprises a base, wherein the bottom of the right side of the base is fixedly connected with an installation block, a working cavity is formed in the installation block, a power mechanism is arranged at the bottom of the working cavity, a lifting mechanism is arranged at the top of the power mechanism, an auxiliary mechanism is arranged at the right side in the working cavity, and the power mechanism comprises a motor, a first belt pulley, a first belt and a second belt pulley. This flood control device that protecting effect is good, when the water level is higher, when the elevating baffle that needs to rise, open the motor, the motor drives second belt pulley and third belt pulley rotation at the during operation, makes first lift lead screw rotate at the vice middle part of first ball nut, drives the vice rotation of second ball nut when the second bull stick is rotatory, makes second lift lead screw rotate at the vice middle part of second ball nut, first lift lead screw and second lift lead screw drive elevating baffle this moment and carry out height control work.
Description
Technical Field
The invention relates to the technical field of municipal flood control, in particular to a flood control device with a good protection effect.
Background
Urban flood control refers to various preventive and remedial measures taken to resist and mitigate the disastrous losses of the city caused by floods. Cities are densely populated and wealth-rich and are the economic culture or political center of a country or a region. The famous cities in the world are located in rivers, lakes and seas, so that the cities are threatened by flood and even suffer flood disasters, and the cities are always important flood control objects.
Because current rail can't be according to the effectual altitude mixture control that carries on of water level when flood control, lead to the rail easily submerged when using, need improve to this problem.
Disclosure of Invention
The invention aims to provide a flood control device with good protection effect so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the flood control device with the good protection effect comprises a base, wherein a mounting block is fixedly connected to the bottom of the right side of the base, a working cavity is formed in the mounting block, a power mechanism is arranged at the bottom of the working cavity, a lifting mechanism is arranged at the top of the power mechanism, and an auxiliary mechanism is arranged on the right side in the working cavity.
Power unit includes motor, first belt pulley, first belt, second belt pulley, first bull stick, first sealing ring, first ball nut pair and first lift lead screw, motor fixed connection is in the middle of the intracavity bottom of working, the motor has the output shaft, first belt pulley fixed connection is in the motor output shaft, first belt right-hand member transmission is connected in first belt pulley, second belt pulley transmission is connected in first belt left end, first bull stick fixed connection is in second belt pulley center, left and right sides bottom is close to middle fixedly connected with baffle in the base, first sealing ring fixed connection is in baffle top left side, the top in first rotating rod of the vice fixed connection of first ball nut, first lift lead screw threaded connection is in first ball nut pair center.
Preferably, elevating system includes lifting baffle, carriage release lever and leading wheel, lifting baffle fixed connection is on first lift lead screw top, carriage release lever fixed connection is in lifting baffle left side bottom, the leading wheel rotates to be connected in the carriage release lever left end.
Preferably, the auxiliary mechanism comprises a second belt, a third belt pulley, a second rotating rod, a second sealing ring, a second ball nut pair and a second lifting screw rod, the left end of the second belt is in transmission connection with the first belt pulley, the third belt pulley is in transmission connection with the right end of the second belt, the second rotating rod is fixedly connected to the center of the third belt pulley, the second ball nut pair is fixedly connected to the inner top of the second rotating rod, the second lifting screw rod is fixedly connected to the middle of the second ball nut pair, and the second sealing ring is fixedly connected to the right side of the top of the partition board.
Preferably, the bottom of the working cavity is fixedly connected with a storage battery on the right side of the motor, and the storage battery is electrically connected with the motor and can provide electric power for the motor through the storage battery.
Preferably, the left side of the top in the working cavity corresponds to the guide wheel fixedly connected with guide sliding grooves, the moving rods, the guide wheels and the guide sliding grooves are two in number and are symmetrically distributed on the left side and the right side of the top in the base, and the lifting baffle is more stable when lifted through the arrangement of the two moving rods, the guide wheels and the guide sliding grooves.
Preferably, the bottom end of the first rotating rod is rotatably connected with the inner wall on the left side of the bottom of the base, and the bottom end of the second rotating rod is rotatably connected with the inner wall on the right side of the bottom of the base, so that the first rotating rod and the second rotating rod can be supported.
Preferably, the rectangular channel that holds the lifting baffle and remove is seted up at the base top, fixedly connected with third sealing ring in the rectangular channel, lifting baffle sliding connection third sealing ring through setting up the third sealing ring, can prevent that the base top from intaking.
Preferably, the number of the mounting blocks is two, the two mounting blocks are symmetrically distributed at the bottoms of the left side and the right side of the base, the motor is a forward and reverse rotation motor, the lifting baffle can be lifted and lowered by arranging the motor as the forward and reverse rotation motor, the top of the mounting block is provided with a mounting bolt hole, the device can be conveniently mounted when being put into use by arranging the mounting bolt hole, the top end of the first rotating rod penetrates through the left side of the bottom of the partition plate and the middle part of the first sealing ring and extends above the first sealing ring, the first rotating rod is rotatably connected with the first sealing ring and can seal the lower part of the partition plate, the top end of the second rotating rod penetrates through the right side of the bottom of the partition plate and the middle part of the second sealing ring and extends above the second sealing ring, the second rotating rod is rotatably connected with the middle part of the second sealing ring, and the top of the second lifting screw rod is fixedly connected with the right side of the bottom of the lifting baffle, the bottom ends of the first lifting screw rod and the second lifting screw rod are respectively provided with a limiting ring, and the lifting baffle can be limited in lifting height by the aid of the limiting rings.
Compared with the prior art, the invention provides a flood control device with good protection effect, which has the following beneficial effects:
1. this flood control device that protecting effect is good, when the water level is higher, when the elevating baffle that needs to rise, open the motor, the motor drives second belt pulley and third belt pulley rotation at the during operation, makes first lift lead screw rotate at the vice middle part of first ball nut, drives the vice rotation of second ball nut when the second bull stick is rotatory, makes second lift lead screw rotate at the vice middle part of second ball nut, first lift lead screw and second lift lead screw drive elevating baffle this moment and carry out height control work.
2. This flood control device that protecting effect is good through the leading wheel of setting on the bottom carriage release lever of the left and right sides of lift baffle, and the direction spout at the left and right sides top in the cooperation base makes the lift baffle more stable when carrying out altitude mixture control.
3. This flood control device that protecting effect is good through setting up first sealing ring, second sealing ring and third sealing ring, can prevent that the base is inside to intake to prevent that the motor from leading to damaging because of the base is inside to intake, prolonged the device life.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional front view of the present invention;
FIG. 3 is a schematic view of the structure A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 2;
fig. 5 is an enlarged schematic view of the structure at C in fig. 2.
In the figure: 1. a base; 2. mounting blocks; 3. a working chamber; 4. a power mechanism; 401. a motor; 402. a first pulley; 403. a first belt; 404. a second pulley; 405. a first rotating lever; 406. a first seal ring; 407. a first ball nut pair; 408. a first lifting screw rod; 5. a lifting mechanism; 501. a lifting baffle plate; 502. a travel bar; 503. a guide wheel; 6. an auxiliary mechanism; 601. a second belt; 602. a third belt pulley; 603. a second rotating rod; 604. a second seal ring; 605. a second ball nut pair; 606. and a second lifting screw rod.
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.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-5, the present invention provides a technical solution: a flood control device with good protection effect comprises a base 1, wherein the bottom of the right side of the base 1 is fixedly connected with an installation block 2, a working cavity 3 is arranged in the installation block 2, a power mechanism 4 is arranged at the bottom of the working cavity 3, a lifting mechanism 5 is arranged at the top of the power mechanism 4, the lifting mechanism 5 comprises a lifting baffle 501, a moving rod 502 and a guide wheel 503, the lifting baffle 501 is fixedly connected with the top end of a first lifting screw 408, a rectangular groove for accommodating the movement of the lifting baffle 501 is arranged at the top of the base 1, a third sealing ring is fixedly connected in the rectangular groove, the lifting baffle 501 is slidably connected with the third sealing ring, the top of the base 1 can be prevented from being filled with water by arranging the third sealing ring, the moving rod 502 is fixedly connected with the bottom of the left side of the lifting baffle 501, the guide wheel 503 is rotatably connected with the left end of the moving rod 502, the left side of the top in the working cavity 3 is fixedly connected with a guide chute corresponding to the guide wheel 503, the number of the moving rods 502, the number of the guide wheels 503 and the number of the guide chutes are two, the two moving rods 502, the number of the guide wheels 503 and the number of the guide chutes are symmetrically distributed on the left side and the right side of the inner top of the base 1, the lifting baffle 501 is more stable when lifted by arranging the two moving rods 502, the number of the guide wheels 503 and the number of the guide chutes, the right side of the inner side of the working cavity 3 is provided with the auxiliary mechanism 6, the auxiliary mechanism 6 comprises a second belt 601, a third belt pulley 602, a second rotating rod 603, a second sealing ring 604, a second ball nut pair 605 and a second lifting screw 606, the left end of the second belt 601 is in transmission connection with the first belt pulley 402, the third belt pulley 602 is in transmission connection with the right end of the second belt 601, the second rotating rod 603 is fixedly connected with the center of the third belt pulley 602, the second ball nut pair 605 is fixedly connected with the inner top of the second rotating rod 603, the second lifting screw 606 is fixedly connected with the middle of the second ball nut pair 605, the second sealing ring 604 is fixedly connected with the right side of the top of the partition, the number of the mounting blocks 2 is two, the two mounting blocks 2 are symmetrically distributed at the bottoms of the left side and the right side of the base 1, the motor 401 is a forward and reverse rotating motor, the lifting baffle 501 can ascend and descend by arranging the motor 401 as the forward and reverse rotating motor, the top of the mounting block 2 is provided with mounting bolt holes, the device can be conveniently mounted when being put into use by arranging the mounting bolt holes, the top end of the first rotating rod 405 penetrates through the left side of the bottom of the partition board and the middle part of the first sealing ring 406 and extends above the first sealing ring 406, the first rotating rod 405 is rotatably connected with the first sealing ring 406 and can seal the lower part of the partition board, the top end of the second rotating rod 603 penetrates through the right side of the bottom of the partition board and the middle part of the second sealing ring 604 and extends above the second sealing ring 604, the second rotating rod 603 is rotatably connected with the middle part of the second sealing ring 604, the top of the second lifting rod 606 is fixedly connected with the right side of the bottom of the lifting baffle 501, the bottom ends of the first lifting screw rod 408 and the second lifting screw rod 606 are respectively provided with a limiting ring, the lifting height of the lifting baffle plate 501 can be limited by the limiting rings, and the lifting baffle plate 501 is more stable in height adjustment by the guide wheels arranged on the moving rods at the bottoms of the left side and the right side of the lifting baffle plate 501 and the guide chutes at the tops of the left side and the right side in the base 1.
The power mechanism 4 comprises a motor 401, a first belt pulley 402, a first belt 403, a second belt pulley 404, a first rotating rod 405, a first sealing ring 406, a first ball nut pair 407 and a first lifting screw 408, the motor 401 is fixedly connected to the middle of the bottom in the working chamber 3, a storage battery is fixedly connected to the right side of the motor 401 at the bottom of the working chamber 3, the storage battery is electrically connected to the motor 401 and can provide power for the motor 401 through the storage battery, the motor 401 has an output shaft, the first belt pulley 402 is fixedly connected to the output shaft of the motor 401, the right end of the first belt 403 is in transmission connection with the first belt pulley 402, the second belt pulley 404 is in transmission connection with the left end of the first belt 403, the first rotating rod 405 is fixedly connected to the center of the second belt pulley 404, the bottom end of the first rotating rod 405 is rotatably connected to the left inner wall of the bottom of the base 1, the bottom end of the second rotating rod 603 is rotatably connected to the right inner wall of the bottom of the base 1, and can support the first rotating rod 405 and the second rotating rod 603, the bottoms of the left side and the right side in the base 1 are fixedly connected with a clapboard near the middle, a first sealing ring 406 is fixedly connected with the left side of the top of the clapboard, a first ball nut pair 407 is fixedly connected with the top of a first rotating rod 405, a first lifting screw 408 is in threaded connection with the center of the first ball nut pair 407, when the water level is high and the lifting baffle 501 needs to be lifted, a motor 401 is started, the motor 401 drives a second belt pulley 404 and a third belt pulley 602 to rotate when working, so that the first lifting screw 408 rotates in the middle of the first ball nut pair 407, the second rotating rod 603 drives a second ball nut pair 605 to rotate when rotating, so that a second lifting screw 606 rotates in the middle of the second ball nut pair 605, at the moment, the first lifting screw 408 and the second lifting screw 606 drive the lifting baffle 501 to perform height adjustment work, and the first sealing ring 406, the second sealing ring 604 and the third sealing ring are arranged, so as to prevent the water from entering the base 1, thereby preventing the motor 401 from being damaged due to water inflow inside the base 1 and prolonging the service life of the device.
In the practical operation process, when the device is used, when the water level is high and the lifting baffle 501 needs to be lifted, the motor 401 is turned on, the motor 401 drives the first belt pulley 402 to rotate when working, at the moment, the first belt pulley 402 drives the second belt pulley 404 and the third belt pulley 602 to rotate respectively through the first belt 403 and the second belt 603, the second belt pulley 404 drives the first rotating rod 405 to rotate, at the moment, the first rotating rod 405 drives the first ball nut pair 407 to rotate when rotating, the first lifting screw 408 rotates in the middle of the first ball nut pair 407, the second rotating rod 603 drives the second ball nut pair 605 to rotate, the second lifting screw 606 rotates in the middle of the second ball nut pair 605, at the moment, the first lifting screw 408 and the second lifting screw 606 drive the lifting baffle 501 to perform height adjustment work, through guide wheels arranged on the moving rods at the left side and the right side of the lifting baffle 501, the lifting baffle 501 is more stable when the height is adjusted by matching with the guide chutes at the top of the left side and the right side in the base 1.
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. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the 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 (8)
1. The utility model provides a flood control device that protecting effect is good, includes base (1), its characterized in that: the bottom of the right side of the base (1) is fixedly connected with an installation block (2), a working cavity (3) is formed in the installation block (2), a power mechanism (4) is arranged at the bottom of the working cavity (3), a lifting mechanism (5) is arranged at the top of the power mechanism (4), and an auxiliary mechanism (6) is arranged on the right side in the working cavity (3);
the power mechanism (4) comprises a motor (401), a first belt pulley (402), a first belt (403), a second belt pulley (404), a first rotating rod (405), a first sealing ring (406), a first ball nut pair (407) and a first lifting screw rod (408), the motor (401) is fixedly connected to the middle of the bottom in the working cavity (3), the motor (401) is provided with an output shaft, the first belt pulley (402) is fixedly connected to the output shaft of the motor (401), the right end of the first belt (403) is in transmission connection with the first belt pulley (402), the second belt pulley (404) is in transmission connection with the left end of the first belt (404), the first rotating rod (405) is fixedly connected to the center of the second belt pulley (404), the bottoms of the left side and the right side in the base (1) are close to the middle and fixedly connected with a partition plate, the first sealing ring (406) is fixedly connected to the left side of the top of the partition plate, the first ball nut pair (407) is fixedly connected to the inner top of the first rotating rod (405), and the first lifting screw rod (408) is in threaded connection with the center of the first ball nut pair (407).
2. A flood protection device with good protection effect according to claim 1, which is characterized in that: elevating system (5) are including lift baffle (501), carriage release lever (502) and leading wheel (503), lift baffle (501) fixed connection is in first lift lead screw (408) top, carriage release lever (502) fixed connection is in lift baffle (501) left side bottom, leading wheel (503) rotate to be connected in carriage release lever (502) left end.
3. A flood protection device with good protection effect according to claim 2, which is characterized in that: the auxiliary mechanism (6) comprises a second belt (601), a third belt pulley (602), a second rotating rod (603), a second sealing ring (604), a second ball nut pair (605) and a second lifting screw rod (606), the left end of the second belt (601) is connected to the first belt pulley (402) in a transmission mode, the third belt pulley (602) is connected to the right end of the second belt (601) in a transmission mode, the second rotating rod (603) is fixedly connected to the center of the third belt pulley (602), the second ball nut pair (605) is fixedly connected to the inner top of the second rotating rod (603), the second lifting screw rod (606) is fixedly connected to the middle of the second ball nut pair (605), and the second sealing ring (604) is fixedly connected to the right side of the top of the partition plate.
4. A flood protection device with good protection effect according to claim 1, which is characterized in that: the bottom of the working cavity (3) is fixedly connected with a storage battery on the right side of the motor (401), and the storage battery is electrically connected with the motor (401).
5. A flood protection device with good protection effect according to claim 2, which is characterized in that: the left side of the top in the working cavity (3) corresponds to the guide wheel (503) and is fixedly connected with a guide sliding groove, the number of the moving rods (502), the number of the guide wheel (503) and the number of the guide sliding grooves are two, and the moving rods (502), the guide wheel (503) and the guide sliding grooves are symmetrically distributed on the left side and the right side of the top in the base (1).
6. A flood protection device with good protection effect according to claim 3, which is characterized in that: the bottom end of the first rotating rod (405) is rotatably connected with the inner wall of the left side of the bottom of the base (1), and the bottom end of the second rotating rod (603) is rotatably connected with the inner wall of the right side of the bottom of the base (1).
7. A flood protection device with good protection effect according to claim 2, which is characterized in that: the base (1) top is seted up and is held the rectangular channel that lifting baffle (501) removed, fixedly connected with third sealing ring in the rectangular channel, lifting baffle (501) sliding connection third sealing ring.
8. A flood protection device with good protection effect according to claim 3, which is characterized in that: the number of the mounting blocks (2) is two, the two mounting blocks (2) are symmetrically distributed at the bottoms of the left side and the right side of the base (1), the motor (401) is a positive and negative rotation motor, the top of the mounting block (2) is provided with a mounting bolt hole, the top end of the first rotating rod (405) penetrates through the left side of the bottom of the clapboard and the middle part of the first sealing ring (406) and extends to the upper part of the first sealing ring (406), the first rotating rod (405) is rotatably connected with the first sealing ring (406), the top end of the second rotating rod (603) penetrates through the right side of the bottom of the partition board and the middle part of the second sealing ring (604) and extends to the upper part of the second sealing ring (604), and the second rotating rod (603) is rotationally connected with the middle part of the second sealing ring (604), the top of the second lifting screw rod (606) is fixedly connected with the right side of the bottom of the lifting baffle plate (501), and limiting rings are arranged at the bottom ends of the first lifting screw rod (408) and the second lifting screw rod (606).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210056333.0A CN114411625A (en) | 2022-01-18 | 2022-01-18 | Flood control device with good protection effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210056333.0A CN114411625A (en) | 2022-01-18 | 2022-01-18 | Flood control device with good protection effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114411625A true CN114411625A (en) | 2022-04-29 |
Family
ID=81273450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210056333.0A Withdrawn CN114411625A (en) | 2022-01-18 | 2022-01-18 | Flood control device with good protection effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114411625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115127064A (en) * | 2022-06-28 | 2022-09-30 | 江苏方德信息技术有限公司 | Community intelligent security lighting control device |
-
2022
- 2022-01-18 CN CN202210056333.0A patent/CN114411625A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115127064A (en) * | 2022-06-28 | 2022-09-30 | 江苏方德信息技术有限公司 | Community intelligent security lighting control device |
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Application publication date: 20220429 |
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| WW01 | Invention patent application withdrawn after publication |