CN111411597A - Electronic liftable roadblock post of intelligence - Google Patents
Electronic liftable roadblock post of intelligence Download PDFInfo
- Publication number
- CN111411597A CN111411597A CN202010139843.5A CN202010139843A CN111411597A CN 111411597 A CN111411597 A CN 111411597A CN 202010139843 A CN202010139843 A CN 202010139843A CN 111411597 A CN111411597 A CN 111411597A
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- China
- Prior art keywords
- upright post
- thrust bearing
- stand
- apron
- column
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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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/044—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface
- E01F13/046—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage the barrier being formed by obstructing members situated on, flush with, or below the traffic surface, e.g. with inflatable members on the surface the obstructing members moving up in a translatory motion, e.g. telescopic barrier posts
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
- E01F9/617—Illuminated or wired-up posts, bollards, pillars or like upstanding bodies or structures for traffic guidance, warning or control
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/619—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings with reflectors; with means for keeping reflectors clean
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The invention relates to a roadblock column, in particular to an intelligent electric liftable roadblock column, which comprises a solar cell panel, an outer upright post cover plate, a threaded rod, an inner upright post and an outer upright post body, wherein the outer upright post cover plate is connected with the bottom of the solar cell panel, the outer upright post body is connected with the outer upright post cover plate, the outer upright post body is sleeved on the inner upright post, the threaded rod is also connected with the outer upright post cover plate, the threaded rod is also in threaded connection with the inner upright post, the inner upright post is arranged in a road surface, the intelligent electric liftable roadblock column further comprises a lower thrust bearing, an upper thrust bearing cover plate, a gear wheel, a pinion and a driving motor, the driving motor is arranged on the inner upright post and is in linkage with the pinion, the lower thrust bearing is arranged on the inner upright post, the upper thrust bearing is connected with the inner, the bull gear is meshed with the pinion through an outer gear ring on the edge, and the bull gear is in threaded connection with the threaded rod through internal threads.
Description
Technical Field
The invention relates to a roadblock column, in particular to an intelligent electric liftable roadblock column.
Background
How to set up the roadblock fast is the important problem in the traffic control, and the roadblock is the current conventional traffic control equipment of vehicle of a control, and for the road surface is pleasing to the eye, also for promoting the roadblock efficiency of setting up simultaneously, has all set up the barrier post of liftable in many busy and disorderly places of traffic such as factory entrance, school's entrance, the first entry in walking street.
Liftable roadblock post can hide under the road surface at ordinary times, when needing traffic control, just lift the roadblock post out of the road surface, but liftable roadblock post is hydraulic drive at present generally, needs dispose hydraulic pump and oil tank, and the structure is huge, need lay longer pipeline, and some are pneumatic drive for example chinese patent 201010267414.2, and the lift roadblock post that discloses adopts the atmospheric pressure power supply, needs supporting air compressor machine to lay the pipeline, also very loaded down with trivial details.
Disclosure of Invention
The invention aims to solve the technical problem and overcome the existing defects, and provides an intelligent electric liftable roadblock column which is driven by intelligent electricity, is additionally provided with a solar cell and an electronic water pump for draining water, and has the advantages of small and exquisite structure, safety, water resistance, strong self-holding capacity, simple maintenance, reliable work and the like.
In order to solve the technical problems, the invention provides the following technical scheme: an intelligent electric liftable roadblock column comprises a solar cell panel, an outer stand column cover plate, a threaded rod, an inner stand column and an outer stand column body, wherein the outer stand column cover plate is connected with the bottom of the solar cell panel, the outer stand column body is connected with the outer stand column cover plate, the outer stand column body is sleeved on the inner stand column, the threaded rod is also connected with the outer stand column cover plate, the threaded rod is also in threaded connection with the inner stand column, the inner stand column is installed in a road surface and further comprises a lower thrust bearing, an upper thrust bearing cover plate, a gear wheel, a pinion and a driving motor, the driving motor is arranged on the inner stand column and is linked with the pinion, the lower thrust bearing is arranged on the inner stand column, the upper thrust bearing is connected with the inner stand column through the upper thrust bearing cover plate, the gear wheel is positioned between the lower thrust bearing and the, the gearwheel is in threaded connection with the threaded rod through internal threads.
Preferably, the solar charging system further comprises a charging controller, a remote control signal receiver, a storage battery and a control unit, wherein the control unit and the storage battery are installed on the inner stand column, the charging controller is electrically connected with the solar cell panel, the charging controller and the remote control signal receiver are installed in the outer stand column cover plate, the charging controller and the remote control signal receiver are respectively electrically connected with the control unit, and the charging controller is also electrically connected with the solar cell panel.
Preferably, the spiral wire coil support is mounted on the spiral wire coil support, and the spiral wire coil support is mounted on the outer upright cover plate; the charging controller and the remote control signal receiver are electrically connected with the control unit and the driving motor through spiral wire coiling respectively.
Preferably, the device further comprises a height limit switch, wherein the height limit switch is arranged on the inner upright post, and the height limit switch is further electrically connected with the control unit.
Preferably, the edge of the solar cell panel is further provided with an annular sealing ring, and the annular sealing ring is clamped at the top of the outer upright post body and can effectively seal an annular gap between the solar cell panel and the road surface.
Preferably, the device further comprises a lowest position limit switch, the lowest position limit switch is arranged at the bottom of the outer column cover plate and connected with the outer column cover plate, and the outer column cover plate is located between the outer column cover plate and the inner column.
Preferably, the safety device also comprises an L ED warning lamp, and the L ED warning lamp is arranged below the annular sealing ring.
As preferred, still include one-way outlet valve, drain, coupling, electronic pump outlet pipe, electronic pump inlet tube and rainwater inductor, the rainwater inductor is established in interior stand bottom and is connected with the control unit electricity, electronic pump establishes in interior stand bottom, and electronic pump advance water piping connection, and the electronic pump inlet tube is located interior stand bottom, electronic pump and electronic pump outlet pipe intercommunication, the drain is established inside the outer stand cylinder.
The invention has the beneficial effects that: the intelligent electric liftable roadblock column adopts motor driving and thread lifting, and has the advantages of high lifting speed, small structure, simple maintenance and the like; the rainwater sensor is adopted to sense accumulated water in the mounting hole and automatically pump and drain the accumulated water, so that the whole equipment is low in corrosion and high in working reliability; the high-strength solar panel and the storage battery are used for supplying power in a combined manner, the self-sustaining capability is strong, a line pipeline does not need to be laid, and the installation cost is low.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of an intelligent electric liftable roadblock column;
fig. 2 is a schematic upper structure diagram of an intelligent electric liftable barrier post;
FIG. 3 is a schematic view of the lower structure of an intelligent electric liftable road block column;
fig. 4 is a schematic diagram of a control circuit of an intelligent electric liftable barrier post.
The number of the drawing is 1, road surface, 2, annular sealing ring, 3, one-way water outlet valve, 4, spring clip, 5, pinion, 6, solar panel, 7, charging controller, 8, remote control signal receiver, 9, small cover plate, 10, lower thrust bearing, 11, upper thrust bearing, 12, upper thrust bearing cover plate, 13, outer column cover plate, 14, gear wheel, 15, lowest position limit switch, 16, L ED warning lamp, 17, outer column body, 18, spiral coil bracket, 19, spiral coil, 20, storage battery, 21, control unit, 22, driving motor, 23, water retaining sealing ring, 24, height limit switch, 25, inner column, 26, threaded rod, 27, drainage channel, 28, pipe joint, 29, electronic water pump water outlet pipe, 30, electronic water pump, 31, electronic water pump water inlet pipe, 32 and rainwater sensor.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The intelligent electric liftable roadblock column shown in fig. 1 to 3 comprises an electric lifting system, a drainage system, a solar charging system, a control unit, an outer upright and an inner upright. Wherein the electric lifting system is used for lifting the outer upright post; the drainage system is used for pumping accumulated water in the road installation hole; the solar charging system is used for collecting electric energy and storing the electric energy into the storage battery; the control unit is used for receiving the highest position limit switch signal, the lowest position limit switch signal, the rainwater sensor signal and the signal of the remote control signal receiver and controlling the driving motor to rotate according to various signals; the outer upright posts are liftable roadblock posts, and reflective traffic signs can be pasted or reflective paint can be coated on the outer portions of the outer upright posts; the inner upright post is a base and is directly connected to a cement foundation in the road hole through a bolt.
Electric lift system includes driving motor, pinion, gear wheel, threaded rod, and drainage system includes electronic water pump, electronic water pump outlet pipe, electronic water pump inlet tube, soft coupling and drain, solar charging system includes circular high strength solar cell panel, battery, charge controller.
The outer column comprises outer column cylinder, outer column apron and screw thread post, and the threaded rod utilizes bolted connection with outer column apron, and outer column apron utilizes bolted connection to outer column cylinder, and circular high strength solar cell panel installs on outer column apron, installs ring packing on the outer disc of outer column apron, and L ED warning light is installed to the ring packing lower part.
The inner upright post is fixed on a cement roadbed in a road hole through a bolt, the driving motor, the storage battery, the control unit and the lower thrust bearing are installed on the top surface of the inner upright post, the large gear is installed on the lower thrust bearing and fixed by the upper thrust bearing and the upper thrust bearing cover plate, and the small gear is installed on a rotating shaft of the driving motor and meshed with an outer gear ring of the large gear. The big gear wheel is internally provided with threads and is screwed on the threaded rod.
The bottom surface of the outer upright post cover plate is also provided with a spiral wire coil and a bracket thereof, and the spiral wire coil is internally provided with a spiral spring piece and has a return function. When the outer upright post ascends, the lead can be continuously drawn out of the spiral coil, and when the outer upright post descends, the lead can be automatically wound on the spiral coil.
The electronic water pump is arranged at the lower part of the inner upright post, the water inlet pipe of the electronic water pump is communicated with the water accumulating ring groove in the road hole, the end of the water outlet pipe of the electronic water pump is provided with a soft pipe joint, the column body of the outer upright post is internally provided with a water drainage channel, and when the outer upright post is positioned at the lowest position, the water drainage channel is just connected with the water outlet pipe of the electronic water pump through the soft pipe joint. In order to reduce the inflow of rainwater, a circular water retaining sealing ring is arranged on the cylindrical inner wall of the road hole.
There is the counter bore at outer stand top central authorities, is equipped with remote control signal receiver, motor external control terminal, charge controller in the hole, when the battery is insufficient, can be through motor external control terminal manual power supply, driving motor to charge for the battery. In order to prevent water and dust, a small cover plate is arranged on a counter bore in the middle of the outer upright post. The external remote controller can remotely control the lifting of the roadblock columns.
The intelligent electric liftable roadblock column is also provided with a lowest position limit switch, a highest position limit switch and a rainwater sensor; the control unit controls the electronic water pump to pump and drain water by using a rainwater sensor signal and a lowest position limit switch signal; when the outer stand column descends, the control unit turns off the driving motor according to the lowest position limit switch signal, and when the outer stand column ascends, the control unit turns off the driving motor according to the highest position limit switch signal.
After an operator sends an instruction signal for lifting out of the roadblock column by using a remote controller, a remote control signal receiver receives the signal and transmits the signal to a control unit, the control unit starts a driving motor, the driving motor and a pinion rotate together and drive a big gear to rotate together, the big gear drives a threaded rod to move upwards and quickly through threads, the threaded rod is connected with an outer upright column body and an outer upright column cover plate through bolts, and the threaded rod moves upwards to drive the whole outer upright column to move upwards. When the outer upright post moves to a certain height, the concave hole on the inner side of the outer upright post is aligned with the elastic contact of the highest position limit switch, the elastic contact of the highest position limit switch is popped out of the concave hole on the inner side of the outer upright post, and the driving motor stops working.
At the moment, the outer upright post can be kept at the highest position due to the self-locking effect of the thread transmission.
When an operator sends a command signal for descending the roadblock column by using a remote controller, the remote control signal receiver receives the signal, the control unit controls the driving motor to rotate reversely, the outer upright post moves downwards quickly, when the outer upright post descends to the lowest position, the elastic contact of the limit switch at the lowest position touches the top surface of the inner upright post, and the driving motor stops working.
At the moment, the water inlet pipe of the electronic water pump is communicated with the water drainage channel through the soft pipe joint, so that the electronic water pump can drain water.
In rainy days, the annular sealing ring and the water retaining sealing ring can both block rainwater from entering the mounting hole on a road, but a small part of rainwater is leaked into the hole, and when a rainwater sensor arranged in an annular water accumulation groove in the mounting hole senses accumulated water, the control unit controls the electronic water pump to be driven to pump the accumulated water out of the hole.
The top of the drainage channel is provided with a one-way water outlet valve which automatically closes the valve by utilizing the weight of the sliding valve core, so that external rainwater and dust cannot enter the mounting hole, and when the electronic water pump drains water, the drainage pressure can jack the valve core of the one-way valve to drain accumulated water.
The circular high-strength solar panel arranged at the top of the outer upright post is connected with the charging controller, and can charge the storage battery to maintain the power supply of components such as a driving motor, an L ED warning light, a remote control signal receiver, a control unit and the like.
In consideration of system detection and fault maintenance, the invention is also provided with a reset switch and a fault indicator lamp, and the fault indication can be realized by controlling L ED warning lamp to flash by the control unit.
The above embodiments are preferred embodiments of the present invention, and those skilled in the art can make variations and modifications to the above embodiments, therefore, the present invention is not limited to the above embodiments, and any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. The utility model provides an electronic liftable roadblock post of intelligence which characterized in that: including solar cell panel (6), outer stand apron (13), threaded rod (26), interior stand (25) and outer stand cylinder (17), outer stand apron (13) is connected with solar cell panel (6)'s bottom, outer stand cylinder (17) are connected with outer stand apron (13), outer stand cylinder (17) cover is established on interior stand (25), threaded rod (26) also are connected with outer stand apron (13), threaded rod (26) still with interior stand (25) spiro union, interior stand (25) are installed in road surface (1), still include down thrust bearing (10), go up thrust bearing (11), go up thrust bearing apron (12), gear wheel (14), pinion (5) and driving motor (22), driving motor (22) are established on interior stand (25) and are linked with pinion (5), thrust bearing (10) set up on interior stand (25) down, the upper thrust bearing (11) is connected with the inner upright post (25) through an upper thrust bearing cover plate (12), the large gear (14) is positioned between the lower thrust bearing (10) and the upper thrust bearing (11), the large gear (14) is meshed with the small gear (5) through an outer gear ring at the edge, and the large gear (14) is in threaded connection with the threaded rod (26) through internal threads.
2. The intelligent electric liftable barrier post of claim 1, wherein: still include charge controller (7), remote control signal receiver (8), battery (20), the control unit (21) and battery (20) are installed on inner column (25), charge controller (7) are connected with solar cell panel (6) electricity, charge controller (7) and remote control signal receiver (8) are installed in outer column apron (13), charge controller (7) are connected with control unit (21) electricity respectively with remote control signal receiver (8), charge controller (7) still are connected with solar cell panel (6) electricity.
3. The intelligent electric liftable barrier post of claim 1, wherein: the spiral wire coil support is characterized by further comprising a spiral wire coil support (18) and a spiral wire coil (19), wherein the spiral wire coil (19) is mounted on the spiral wire coil support (18), and the spiral wire coil support (18) is mounted on the outer upright cover plate (13); the charging controller (7) and the remote control signal receiver (8) are respectively and electrically connected with the control unit (21) and the driving motor (22) through a spiral wire coil (19) in a winding manner.
4. The intelligent electric liftable barrier post of claim 1, wherein: the height limiting switch device is characterized by further comprising a height limiting switch (24), wherein the height limiting switch (24) is arranged on the inner upright post (25), and the height limiting switch (24) is further electrically connected with the control unit (21).
5. The intelligent electric liftable barrier post of claim 1, wherein: the edge of the solar cell panel (6) is also provided with an annular sealing ring (2), the annular sealing ring (2) is clamped at the top of the outer column body, and an annular gap between the solar cell panel (6) and the road surface can be effectively sealed.
6. The intelligent electric liftable barrier post of claim 1, wherein: still include lowest position limit switch (15), lowest position limit switch (15) are established in outer stand apron (13) bottom and are connected with outer stand apron (13), outer stand apron (13) are located between outer stand apron (13) and inner column (25).
7. The intelligent electric liftable roadblock column as claimed in claim 1, further comprising L ED warning lamps (16), wherein the L ED warning lamps (16) are installed below the annular sealing ring (2).
8. The intelligent electric liftable barrier post of claim 1, wherein: still include one-way outlet valve (3), drain (27), coupling (28), electronic pump outlet pipe (29), electronic pump (30), electronic pump inlet tube (31) and rainwater inductor (32), rainwater inductor (32) are established in inner column (25) bottom and are connected with the control unit (21) electricity, establish in inner column (25) bottom electronic pump (30), and electronic pump (30) are connected with electronic pump inlet tube (31), and electronic pump inlet tube (31) are located inner column (25) bottom, electronic pump (30) and electronic pump outlet pipe (29) intercommunication, drain (27) are established inside outer column body (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010139843.5A CN111411597A (en) | 2020-03-03 | 2020-03-03 | Electronic liftable roadblock post of intelligence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010139843.5A CN111411597A (en) | 2020-03-03 | 2020-03-03 | Electronic liftable roadblock post of intelligence |
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| Publication Number | Publication Date |
|---|---|
| CN111411597A true CN111411597A (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010139843.5A Pending CN111411597A (en) | 2020-03-03 | 2020-03-03 | Electronic liftable roadblock post of intelligence |
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| CN (1) | CN111411597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554091A (en) * | 2021-01-08 | 2021-03-26 | 南京京振徽贸易有限公司 | Banister prevents pounding device with drainage function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539769Y (en) * | 2002-04-11 | 2003-03-12 | 陈德敏 | Automatic lifting barricade device |
| CN201037235Y (en) * | 2006-12-20 | 2008-03-19 | 兰蔚 | Solar energy obstacle pile |
| CN101942814A (en) * | 2010-08-31 | 2011-01-12 | 张家港固耐特围栏系统有限公司 | Lifting roadblock |
| CN204644917U (en) * | 2015-04-29 | 2015-09-16 | 成都深思科技有限公司 | A kind of ascending/decending banister |
| CN107916633A (en) * | 2017-11-20 | 2018-04-17 | 电子科技大学中山学院 | Solar roadblock equipment capable of stretching and retracting regularly |
| CN208981212U (en) * | 2018-09-14 | 2019-06-14 | 陈利平 | A kind of Novel crashproof lifting roadblock |
-
2020
- 2020-03-03 CN CN202010139843.5A patent/CN111411597A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539769Y (en) * | 2002-04-11 | 2003-03-12 | 陈德敏 | Automatic lifting barricade device |
| CN201037235Y (en) * | 2006-12-20 | 2008-03-19 | 兰蔚 | Solar energy obstacle pile |
| CN101942814A (en) * | 2010-08-31 | 2011-01-12 | 张家港固耐特围栏系统有限公司 | Lifting roadblock |
| CN204644917U (en) * | 2015-04-29 | 2015-09-16 | 成都深思科技有限公司 | A kind of ascending/decending banister |
| CN107916633A (en) * | 2017-11-20 | 2018-04-17 | 电子科技大学中山学院 | Solar roadblock equipment capable of stretching and retracting regularly |
| CN208981212U (en) * | 2018-09-14 | 2019-06-14 | 陈利平 | A kind of Novel crashproof lifting roadblock |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554091A (en) * | 2021-01-08 | 2021-03-26 | 南京京振徽贸易有限公司 | Banister prevents pounding device with drainage function |
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Application publication date: 20200714 |
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| RJ01 | Rejection of invention patent application after publication |