CN110992819B - Special automatic windproof clamp for pole number plate - Google Patents
Special automatic windproof clamp for pole number plate Download PDFInfo
- Publication number
- CN110992819B CN110992819B CN201911157486.9A CN201911157486A CN110992819B CN 110992819 B CN110992819 B CN 110992819B CN 201911157486 A CN201911157486 A CN 201911157486A CN 110992819 B CN110992819 B CN 110992819B
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- number plate
- lifting disc
- shaft
- pole
- pole number
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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
- G09F7/18—Means for attaching signs, plates, panels, or boards to a supporting structure
- G09F7/22—Means for attaching signs, plates, panels, or boards to a supporting structure for rotatably or swingably mounting, e.g. for boards adapted to be rotated by the wind
Abstract
The invention discloses a special automatic windproof clamp for pole numbers, which comprises a pole number and a support, wherein the pole number and the support are fixedly connected through bolts, the support is rotatably connected with a fixed frame through a pole number shaft, the fixed frame is fixedly connected to a pole tower, a pneumatic component for controlling the posture of the pole number is arranged above the fixed frame, the pneumatic component comprises a cover, a power shaft and a wind cup, the power shaft and the wind cup are fixedly connected, and the lower end of the power shaft is fixedly connected with a rotating block; the rotating block is provided with a rotating shaft which is distributed annularly, a rotating shaft rod is connected with a centrifugal bead, and the centrifugal bead is connected with a first lifting disc in a sliding manner through a narrow groove on the first lifting disc; the first lifting disc is provided with a first central hole for passing through the fixing frame, and the first lifting disc is rotationally connected with the second lifting disc through balls; the lower end of the second lifting disc is provided with a rack block, and a gear matched with the rack block is arranged on the rod number plate shaft. The invention has the following beneficial effects: (1) the number plate can be adjusted according to the wind speed; (2) the structure is stable, and the manufacture is convenient; (3) the wind power is used, so that the environment is protected and the energy is saved.
Description
Technical Field
The invention relates to the field of rod number plate clamps, in particular to an automatic windproof clamp special for a rod number plate.
Background
In the operation maintenance work of transmission line, in order to be convenient for the management so that later stage maintenance, need for each shaft tower serial number, scribble the name of shaft tower at outer hanging rod number plate for maintenance personal discernment.
The pole number plate is located the open air, receives the ageing fuzzy unable use of wind-blowing sunshine for a long time, and the pole number plate of especially eminence receives strong wind to influence very much. Even because pole number plate is too big, can promote the windage of shaft tower, make the shaft tower blown easily by wind, increased danger.
Therefore, how to design a windproof electric transmission line pole and tower pole number plate can effectively prevent wind and reduce danger, and is a technical problem to be solved at present;
for example, a "transmission line tower identification device" disclosed in chinese patent literature, whose publication number CN205943333U includes a fixing frame, an installation slot, a number plate, and other structures, wherein the fixing frame is fixed on a cross beam at a corresponding position of the transmission line tower by a bolt clamp; the mounting slot is horizontally fixed on the fixing frame, a cavity is arranged in the horizontal direction, and a abdicating seam is arranged on the side wall of the bottom; the top of the number plate is provided with an insertion rod which is inserted in the cavity of the installation slot in a matching way.
Above patent does not design windproof structure, can't prevent wind, and the windage of the increase shaft tower that pole number tablet can be very big.
Disclosure of Invention
The invention aims to solve the problems that the pole number plate clamp in the prior art cannot prevent wind and the pole number plate can greatly increase the wind resistance of a tower, and provides the special automatic wind-proof clamp for the pole number plate, which can effectively fix the pole number plate, realize automatic wind prevention, reduce the wind resistance of the tower under strong wind and ensure that the tower is not easily damaged under the strong wind.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic windproof clamp special for pole numbers comprises pole numbers and a support, wherein the pole numbers and the support are fixedly connected through bolts, the support is rotatably connected with a fixed frame through a pole number shaft, the fixed frame is fixedly connected to a pole tower, a pneumatic component for controlling the postures of the pole numbers is arranged above the fixed frame, the pneumatic component comprises a cover, a power shaft and a wind cup, the power shaft is fixedly connected with the wind cup, the lower end of the power shaft is fixedly connected with a rotating block, and the rotating block is rotatably connected with one end, away from the pole numbers, of the fixed frame; the rotating block is provided with a rotating shaft which is distributed in an annular manner, a rotating shaft rod is connected with a centrifugal bead, the centrifugal bead is connected with a first lifting disc in a sliding manner through a narrow-mouth groove on the first lifting disc, and a cavity for containing the centrifugal bead is arranged in the narrow-mouth groove; the first lifting disc is provided with a first central hole for passing through the fixing frame, and the first lifting disc is rotationally connected with the second lifting disc through balls; the second lifting disc is provided with a limiting protrusion and a second central hole for passing through the fixed frame; the fixing frame is provided with a limiting groove corresponding to the limiting protrusion; the lower end of the second lifting disc is provided with a rack block, and a gear matched with the rack block is arranged on the rod number plate shaft. In the operation maintenance work of transmission line, in order to be convenient for the management so that later stage maintenance, need for each shaft tower serial number, scribble the name of shaft tower at outer hanging pole number plate for maintenance personal discernment, this is pole number plate promptly. The support is a triangular steel frame. The rod number plate shaft is provided with ring grooves at two ends for accommodating one end of the fixing frame, through holes are arranged between the ends of the fixing frame, and the ring grooves are buckled to form a rotating shaft, so that the rod number plate shaft can rotate on the fixing frame. The fixing frame is fixedly connected to the tower through bolts. The pneumatic assembly comprises all components which drive the gear on the number plate shaft by wind power. The wind cup is driven by wind to start rotating, and the rotating shaft is driven to rotate on a horizontal plane through the power shaft and the rotating block. The centrifugal beads are connected with the rotating shaft rod, the centripetal force of the centrifugal beads is increased when the centrifugal beads rotate, the acting force of the rod on the centrifugal beads is increased, a part of component force of the acting force of the rod on the centrifugal beads overcomes the gravity to enable the centrifugal beads to ascend in a force balance state, and the larger the rotating speed is, the higher the centrifugal beads ascend. The centrifugal bead is located the cavity in the thin mouthful groove of first lifting disk, and the thin mouthful groove is used for the pole of connecting through pivot and centrifugal bead to for the centrifugal bead provides ascending power of action point, make the centrifugal bead can drive the perpendicular up-and-down motion of first lifting disk. The centrifugal bead can also move in the horizontal direction when rotating, and the cavity is designed into a long strip shape to provide a moving space for the centrifugal bead. The first central hole in the middle of the first lifting disc is used for enabling the first lifting disc to be completely controlled by the rotating shaft and the centrifugal beads through the fixing frame. The second lifting disc is connected with the first lifting disc in a concentric rotating mode, a limiting protrusion is arranged at a second center hole in the middle of the second lifting disc, and a limiting groove is arranged at the corresponding position of the fixing frame, so that the second lifting disc cannot rotate. The rack block of the second lifting disk is engaged with the gear on the rod number plate shaft for transferring the vertical displacement of the second lifting disk to the rotation of the rod number plate shaft. The rotation of pole number plate axle can adjust the gesture of pole number plate to the level, and the windage greatly reduced of pole number plate and shaft tower has reduced the possibility that pole number plate and shaft tower are damaged by the high wind like this.
Preferably, the edge of the first lifting plate is downwards buckled with the balls, and the edge of the second lifting plate is upwards buckled with the balls, so that a bearing-like structure is formed. The edges of the first lifting disc and the second lifting disc are provided with a section of extended arc-shaped volume for buckling the balls. The contact area between the balls and the two lifting disks is small, so that the friction force is small, and the rotation resistance of the first lifting disk is small.
Preferably, the cover is fixedly connected with the fixed frame through a thin rod, and through holes for the thin rod to pass through are formed in the power shaft and the rotating block; the side surface of the cover is half through. The thin rod is rotatably connected with the power shaft and the rotating block, the thin rod is fixed on the fixed frame and can not move, and the power shaft and the rotating block can rotate. The half of the through side surface of the cover is used for air inlet, and air enters the cover to blow the air cup, so that the air driven assembly starts to operate.
Preferably, the rotating block is provided with four rotating shafts and a groove for accommodating the rotating shafts. The rotating shaft and the matched structure are not too much or too little, so that the friction force between the centrifugal beads and the narrow groove is increased too much, and the load of wind power is increased; too few will reduce the structural strength and the stability of device, so set up four structures such as pivot.
Preferably, the width of the notch of the thin-notched groove is larger than the cross-sectional diameter of the rod between the rotating shaft and the centrifugal bead and smaller than the diameter of the centrifugal bead. Therefore, the centrifugal beads can be clamped in the cavity in the narrow-mouth groove, and the centrifugal beads can drive the first lifting disc to move up and down.
Preferably, the mounting bracket is rotatably connected to the shaft of the pole number plate by a collar bearing. The ring sleeve bearing can reduce friction force and avoid that the rod number plate shaft and the rod number plate cannot be driven to rotate due to insufficient wind power.
Preferably, the length of the rack block is the same as that of the limiting groove, and the lower end of the limiting groove is parallel to the upper end of the teeth of the rack block. Because the angle of pole number plate and pole number plate axle is by gear control, normally erects under the windless condition at ordinary times, and the rack piece on the second lifting disk needs to keep meshing always with the gear to maintain the angle of pole number plate and pole number plate axle, so design position and length of spacing groove like this.
Therefore, the invention has the following beneficial effects: (1) the number plate can be adjusted according to the wind speed; (2) the structure is stable, and the manufacture is convenient; (3) the wind power is used, so that the environment is protected and the energy is saved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partial structural schematic diagram of the present invention.
Fig. 3 is a plan view of the first lifter plate of the present invention.
Fig. 4 is a partial structural view of the pole number plate of the present invention.
Fig. 5 is a schematic structural view of the pole number plate of the present invention after the posture thereof is adjusted.
1-pole number plate, 2-bracket, 3-pole number plate shaft, 4-fixing frame, 5-pneumatic component, 6-cover, 7-power shaft, 8-wind cup, 9-turning block, 10-rotating shaft, 11-centrifugal bead, 12-first lifting disc, 13-cavity, 14-first central hole, 15-second lifting disc, 16-rolling ball, 17-second central hole, 18-limiting protrusion, 19-limiting groove, 20-rack block, 21-fine groove, 22-gear, 23-ring sleeve bearing and 24-bolt.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example (b):
in the embodiment shown in fig. 1 to 5, an automatic windproof clamp special for a pole number plate comprises a pole number plate 1 and a support 2 which are fixedly connected through a bolt 24, the support 2 is rotatably connected with a fixing frame 4 through a pole number plate shaft 3, the length of a rack block 20 is the same as that of a limiting groove 19, and the lower end of the limiting groove 19 is parallel to the upper end of the teeth of the rack block 20. Since the angle of the pole number plate 1 and the pole number plate shaft 3 is controlled by the gear 22 and normally stands in the absence of wind at ordinary times, the rack block 20 on the second lifting disk 15 needs to be constantly engaged with the gear 22 to maintain the angle of the pole number plate 1 and the pole number plate shaft 3, and thus the position and length of the stopper groove 19 are designed. The fixing frame 4 is fixedly connected to the pole tower, and the pneumatic component 5 for controlling the posture of the pole number plate 1 is arranged above the fixing frame 4. The cover 6 is fixedly connected with the fixed frame 4 through a thin rod, and through holes for the thin rod to pass through are arranged in the power shaft 7 and the rotating block 9; the cover 6 is half through the side surface. The thin rod is rotatably connected with the power shaft 7 and the rotating block 9, the thin rod is fixed on the fixed frame 4 and is not movable, and the power shaft 7 and the rotating block 9 can rotate. The half of the through side surface of the cover 6 is used for air inlet, and air enters the cover 6 to blow the air cup 8, so that the pneumatic assembly 5 starts to operate.
The power shaft 7 is fixedly connected with the wind cup 8, the lower end of the power shaft 7 is fixedly connected with a rotating block 9, and four rotating shafts 10 and a groove for accommodating the rotating shafts 10 are arranged on the rotating block 9. The rotating shaft 10 and the matched structure are not too much or too little, so that the friction force between the centrifugal beads 11 and the narrow groove 21 is increased too much, and the load of wind power is increased; too little will reduce the structural strength and stability of the device, so four rotating shafts 10 and other structures are arranged.
The rotating block 9 is rotatably connected with one end of the fixed frame 4 far away from the rod number plate 1; the rotating block 9 is provided with a rotating shaft 10 which is distributed annularly, a rod of the rotating shaft 10 is connected with a centrifugal ball 11, the centrifugal ball 11 is connected with a first lifting disc 12 in a sliding mode through a narrow-mouth groove 21 on the first lifting disc 12, the edge of the first lifting disc 12 is downwards buckled with a ball 16, the edge of the second lifting disc 15 is upwards buckled with the ball 16, and a bearing-like structure is formed. The first lifting disk 12 and the second lifting disk 15 are each provided with an extended arc-shaped volume for retaining the balls 16. The contact area between the balls 16 and the two lifting disks is small, so that the friction force is small and the rotational resistance of the first lifting disk 12 is small.
The narrow-mouth groove 21 is provided with a cavity 13 for accommodating the centrifugal bead 11. The width of the notch of the thin notch groove 21 is larger than the cross-sectional diameter of the rod between the rotating shaft 10 and the centrifugal bead 11 and smaller than the diameter of the centrifugal bead 11. Therefore, the centrifugal beads 11 can be clamped in the cavity 13 in the narrow-mouth groove 21, and the centrifugal beads 11 can drive the first lifting disc 12 to move up and down.
The first lifting disc 12 is provided with a first central hole 14 for passing through the fixed frame 4, and the first lifting disc 12 is rotationally connected with a second lifting disc 15 through a ball 16; the second lifting disc 15 is provided with a limiting protrusion 18 and a second central hole 17 for passing through the fixed frame 4; a limit groove 19 corresponding to the limit protrusion 18 on the fixing frame 4; the lower end of the second lifting disc 15 is provided with a rack block 20, and the rod number plate shaft 3 is provided with a gear 22 matched with the rack block 20. In the operation maintenance work of transmission line, in order to be convenient for the management so that later stage maintenance, need for each shaft tower serial number, scribble the name of shaft tower at outer hanging pole number plate 1 for the maintainer discernment, this is pole number plate 1 promptly. The bracket 2 is a triangular steel frame. The two ends of the rod number plate shaft 3 are provided with annular grooves for accommodating one end of the fixing frame 4, through holes are arranged between the ends of the fixing frame 4, and the annular grooves buckled on the rod number plate shaft 3 form a rotating shaft 10, so that the rod number plate shaft 3 can rotate on the fixing frame 4. The ring sleeve bearing 23 can reduce friction force, and avoid that the rod number plate shaft 3 and the rod number plate 1 cannot be driven to rotate due to insufficient wind power.
The fixed frame 4 is fixedly connected to the tower through bolts. The pneumatic assembly 5 includes all components that drive the gear 22 on the shaft 3 using wind. The wind cup 8 is driven by wind to rotate, and the rotating shaft 10 is rotated on a horizontal plane through the power shaft 7 and the rotating block 9. The centrifugal beads 11 are connected with the rotating shaft 10 through a rod, when the centrifugal beads 11 rotate, the centripetal force of the centrifugal beads 11 is larger, the acting force of the rod on the centrifugal beads 11 is larger, a part of component of the acting force of the rod on the centrifugal beads 11 overcomes the gravity to enable the centrifugal beads 11 to rise in a force balance state, and the centrifugal beads 11 rise higher as the rotating speed is higher. The centrifugal beads 11 are located in the cavity 13 of the narrow slot 21 of the first lifting disc 12, and the narrow slot 21 is used for a rod connected with the centrifugal beads 11 through the rotating shaft 10 and providing an upward force action point for the centrifugal beads 11, so that the centrifugal beads 11 can drive the first lifting disc 12 to vertically move up and down. The centrifugal beads 11 also move in the horizontal direction when rotating, and the cavity 13 is designed in a long strip shape to provide a moving space for the centrifugal beads 11. A first central hole 14 in the middle of the first lifting disk 12 is used for passing through the fixed frame 4, so that the first lifting disk 12 is completely controlled by the rotating shaft 10 and the centrifugal beads 11. The second lifting disc 15 is connected with the first lifting disc 12 in a concentric rotation mode, a limiting protrusion 18 is arranged at a second center hole 17 in the middle of the second lifting disc 15, and a limiting groove 19 is arranged at the corresponding position of the fixing frame 4, so that the second lifting disc 15 cannot rotate. The rack block 20 of the second lifting disk 15 is engaged with the gear 22 on the rod number shaft 3 for transferring the vertical displacement of the second lifting disk 15 to the rotation of the rod number shaft 3. The rotation of pole number plate axle 3 can adjust the gesture of pole number plate 1 to the level, and the windage greatly reduced of pole number plate 1 and shaft tower has reduced the possibility that pole number plate 1 and shaft tower are damaged by strong wind like this. If pole number plate 1 rotates certain angle and can influence staff's observation, nevertheless under strong wind weather, staff generally can not work, so the influence is less.
The working principle is as follows:
the strong wind blows the wind cup 8, the wind cup 8 starts to rotate, the power shaft 7 and the rotating block 9 start to rotate, after a certain rotating speed is reached, the centripetal force of the centrifugal bead 11 becomes larger and larger, the acting force of the rod on the centrifugal bead 11 becomes larger and larger, part of component force of the acting force of the rod on the centrifugal bead 11 overcomes the gravity to enable the centrifugal bead 11 to ascend in a force balance state, and the first lifting disc 12 and the second lifting disc 15 are driven to ascend. The rack block 20 also rises, the rod number plate shaft 3 is driven by the rotation of the gear 22 on the rod number plate shaft, the rod number plate 1 is fixedly connected on the rod number plate shaft 3, and the rod number plate 1 rotates by a corresponding angle according to the rising height of the centrifugal bead 11 to reduce the wind resistance.
Claims (5)
1. The special automatic windproof clamp for the pole number plate comprises a pole number plate (1) and a support (2) which are fixedly connected through a bolt (24), wherein the support (2) is rotatably connected with a fixing frame (4) through a pole number plate shaft (3), the fixing frame (4) is fixedly connected to a pole tower, and the special automatic windproof clamp is characterized in that a pneumatic component (5) for controlling the posture of the pole number plate is arranged above the fixing frame (4), the pneumatic component (5) comprises a cover (6), a power shaft (7) and an air cup (8), the power shaft (7) is fixedly connected with the air cup (8), a rotating block (9) is fixedly connected to the lower end of the power shaft (7), and the rotating block (9) is rotatably connected with one end, far away from the pole number plate, of the fixing frame (4); a rotating shaft (10) which is distributed annularly is arranged on the rotating block (9), a rod of the rotating shaft (10) is connected with a centrifugal bead (11), the centrifugal bead (11) is connected with a first lifting disc (12) in a sliding way through a thin opening groove (21) on the first lifting disc (12), and a cavity (13) for accommodating the centrifugal bead (11) is arranged in the thin opening groove (21); the first lifting disc (12) is provided with a first central hole (14) for passing through the fixed frame (4), and the first lifting disc (12) is rotationally connected with the second lifting disc (15) through a ball (16); the second lifting disc (15) is provided with a limiting protrusion (18) and a second central hole (17) for passing through the fixed frame (4); a limit groove (19) corresponding to the limit protrusion (18) is arranged on the fixed frame (4); a rack block (20) is arranged at the lower end of the second lifting disc (15), and a gear (22) matched with the rack block (20) is arranged on the rod number plate shaft (3); the edge of the first lifting disc (12) is downwards internally buckled with the ball (16), and the edge of the second lifting disc (15) is upwards and externally buckled with the ball (16) to form a bearing-like structure; the width of the notch of the thin notch groove (21) is larger than the section diameter of the rod between the rotating shaft (10) and the centrifugal bead (11) and smaller than the diameter of the centrifugal bead (11).
2. The automatic windproof clamp special for the pole number plate according to claim 1, characterized in that the cover (6) is fixedly connected with the fixed frame (4) through a thin pole, and through holes for the thin pole to pass through are arranged in the power shaft (7) and the rotating block (9); the side surface of the cover (6) is half through.
3. The automatic windproof clamp special for rod numbers according to claim 1, characterized in that the turning block (9) is provided with four turning shafts (10) and a groove for accommodating the turning shafts (10).
4. The automatic windproof clamp according to any one of claims 1 to 3, characterized in that the holder (4) is rotatably connected to the shaft (3) of the pole number plate by a ring bearing (23).
5. The automatic windproof clamp special for the pole number plate according to any one of claims 1 to 3, characterized in that the length of the rack block (20) is the same as that of the limit groove (19), and the lower end of the limit groove (19) is parallel to the upper end of the teeth of the rack block (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157486.9A CN110992819B (en) | 2019-11-22 | 2019-11-22 | Special automatic windproof clamp for pole number plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157486.9A CN110992819B (en) | 2019-11-22 | 2019-11-22 | Special automatic windproof clamp for pole number plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110992819A CN110992819A (en) | 2020-04-10 |
| CN110992819B true CN110992819B (en) | 2022-05-17 |
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ID=70086023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911157486.9A Active CN110992819B (en) | 2019-11-22 | 2019-11-22 | Special automatic windproof clamp for pole number plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110992819B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB191126635A (en) * | 1910-11-29 | 1912-05-16 | Edward Denliker | Improvements in Wind Moved Apparatus for Displaying or Advertising. |
| CN106622851A (en) * | 2017-02-21 | 2017-05-10 | 湖州瀚海科技咨询有限公司 | Penholder craft paint dyeing device |
| CN107487737A (en) * | 2016-06-13 | 2017-12-19 | 重庆三希宝科技发展有限公司 | A kind of liftable installation attending device |
| CN107507510A (en) * | 2017-09-30 | 2017-12-22 | 温州大学瓯江学院 | A kind of Anti-wind advertising plate |
| CN108607169A (en) * | 2018-04-23 | 2018-10-02 | 南通职业大学 | Centrifugal escape device for high-rise buildings and its working method |
| CN109036113A (en) * | 2018-08-03 | 2018-12-18 | 渤海大学 | The Intelligent windproof component of high building billboard |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2512921Y (en) * | 2001-10-22 | 2002-09-25 | 李荣庆 | Wind power type water pump unit for well |
| CN204315177U (en) * | 2014-12-24 | 2015-05-06 | 姜孟田 | Wind proof advertisement is famous |
| CN207602142U (en) * | 2017-10-30 | 2018-07-10 | 国网浙江省电力公司杭州供电公司 | A kind of special pole tag device of electric power |
| CN109147616B (en) * | 2018-10-31 | 2020-06-19 | 郑州职业技术学院 | Windproof advertisement display rack |
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2019
- 2019-11-22 CN CN201911157486.9A patent/CN110992819B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191126635A (en) * | 1910-11-29 | 1912-05-16 | Edward Denliker | Improvements in Wind Moved Apparatus for Displaying or Advertising. |
| CN107487737A (en) * | 2016-06-13 | 2017-12-19 | 重庆三希宝科技发展有限公司 | A kind of liftable installation attending device |
| CN106622851A (en) * | 2017-02-21 | 2017-05-10 | 湖州瀚海科技咨询有限公司 | Penholder craft paint dyeing device |
| CN107507510A (en) * | 2017-09-30 | 2017-12-22 | 温州大学瓯江学院 | A kind of Anti-wind advertising plate |
| CN108607169A (en) * | 2018-04-23 | 2018-10-02 | 南通职业大学 | Centrifugal escape device for high-rise buildings and its working method |
| CN109036113A (en) * | 2018-08-03 | 2018-12-18 | 渤海大学 | The Intelligent windproof component of high building billboard |
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| Publication number | Publication date |
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| CN110992819A (en) | 2020-04-10 |
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