CN108004976B - Speed reduction roadblock for controlling one-way driving of automobile - Google Patents
Speed reduction roadblock for controlling one-way driving of automobile Download PDFInfo
- Publication number
- CN108004976B CN108004976B CN201710715858.XA CN201710715858A CN108004976B CN 108004976 B CN108004976 B CN 108004976B CN 201710715858 A CN201710715858 A CN 201710715858A CN 108004976 B CN108004976 B CN 108004976B
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- plate
- toughened glass
- connecting piece
- box body
- cylindrical
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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
- E01F13/10—Vehicle barriers specially adapted for allowing passage in one direction only
- E01F13/105—Vehicle barriers specially adapted for allowing passage in one direction only depressible by right-way traffic, e.g. pivotally; actuated by wrong-way traffic
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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
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Signs Or Road Markings (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
A deceleration roadblock for controlling one-way driving of an automobile belongs to the field of traffic facilities. The solar energy power generation device comprises a front plate, a cylindrical lug, a connecting piece, toughened glass, a solar power generation plate, a metal plate, a green LED lamp, a box body, a connecting plate, a connecting piece, a limiting baffle plate, a positioning block, a movable rod, a cylinder, a pressure spring, a transverse plate, a cylindrical lug, a connecting piece, toughened glass, a solar power generation plate, a metal plate, a suspended plate, a connecting structure, a red LED lamp, a lead, a spring and a storage battery, wherein the solar power generation plate can generate electricity to provide energy for the LED lamp; when the vehicle drives in the reverse direction, the cylinder can cling to the limiting baffle plate and cannot rotate in the reverse direction, and then the front plate and the transverse plate cannot be closed, so that the vehicle is prevented from driving in the reverse direction. The device can realize better automation, and the occurrence probability of the vehicle running backwards is effectively reduced.
Description
Technical Field
The invention relates to a speed reduction roadblock for controlling one-way running of an automobile, in particular to a traffic speed limiting device which adopts a structure of a box body and a limit baffle and is provided with a movable plate, belonging to the field of traffic facilities.
Background
Along with the improvement of living standard of people, more and more people possess own cars, which leads to the rapid increase of traffic flow on roads, and meanwhile, some people like speeding, especially in places with dense people such as schools and communities, traffic accidents are easy to happen, and the safety of other people is harmed. In addition, in many road sections, one-way driving is set for relieving traffic pressure, but due to unconsciousness of people, a phenomenon of reverse driving against traffic rules occurs, and traffic accidents are easy to happen. The existing speed reduction roadblock can effectively reduce the speed of a vehicle, but cannot limit the unidirectional running of the vehicle.
Disclosure of Invention
Aiming at the defects, the invention provides a deceleration roadblock for controlling the unidirectional running of an automobile.
The invention is realized by the following technical scheme: the utility model provides a control one-way speed reduction roadblock that traveles of car, is by the front bezel, cylindrical lug, the connecting piece, toughened glass, solar panel, the metal sheet, green LED lamp, the box, the connecting plate, the connecting piece, limit baffle, the locating piece, the movable rod, the drum, the pressure spring, the diaphragm, cylindrical lug, the connecting piece, toughened glass, solar panel, the metal sheet, unsettled version, connection structure, red LED lamp, the wire, spring and battery are constituteed, its characterized in that: the front plate is of a three-layer structure and comprises toughened glass, a solar power generation plate and a metal plate, wherein the toughened glass is arranged on the uppermost layer, the solar power generation plate is positioned between the toughened glass and the metal plate and is tightly attached to the toughened glass, cylindrical protrusions for increasing wheel friction are arranged on the toughened glass, the toughened glass is divided into two rows, the two rows are the same in distance, small holes for mounting green LEDs are formed in the toughened glass, a connecting piece is cylindrical, a round hole is formed in the middle of the connecting piece and is distributed on two sides of the front plate, the front plate is connected with the box body through the connecting piece, and the front plate can rotate on the box body through the; the transverse plate is also of a three-layer structure and comprises toughened glass, a solar power generation plate and a metal plate, wherein the toughened glass is positioned on the upper layer, the solar power generation plate is positioned between the toughened glass and the metal plate, the toughened glass is tightly attached to the toughened glass, two rows of cylindrical bulges with equal intervals are distributed on the toughened glass, 4 connecting pieces are distributed on two sides of the transverse plate, the transverse plate is connected with the suspended plate and the front plate through the connecting pieces, and the transverse plate is positioned between the suspended plate and the front plate; the suspended plate is only provided with one layer of structure, small holes for mounting the red LED lamps are distributed above the suspended plate, and the suspended plate is connected with the transverse plate through the connecting piece; the box body comprises two connecting plates, two connecting pieces, two limiting baffle plates and two positioning blocks, the connecting plates are tightly attached to the inner wall of the box body, the left side and the right side of the box body are respectively provided with two positioning blocks, the two positioning blocks are provided with round holes in the middle, the two positioning blocks are welded on the bottom surface of the box body and are arranged on the same straight line, the limiting baffle plates are welded on the bottom surface of the box body and are attached to the side surfaces of the positioning blocks, the two connecting pieces are of cylindrical structures, the middle of each connecting piece is provided with a through hole, and; the storage battery is arranged between the rear wall of the box body and the limiting baffle; the solar power generation panel is connected with the storage battery through the lead, and the storage battery is connected with the green LED lamp and the red LED lamp; the bottom of the cylinder is provided with a round hole which is connected with the positioning block through a positioning pin, a round through hole is arranged above the movable rod, the round through hole is connected with the connecting piece through a point pin and is arranged in the middle of the cylinder, and the cylinder is connected with the movable rod through a spring; the pressure springs are respectively connected with the outer walls of the four cylinders and the bottom surface of the box body.
The solar LED street lamp has the beneficial effects that the solar power generation panel can generate electricity to provide energy for the LED lamp, and meanwhile, the solar power generation panel can also provide electricity for facilities around the street. When the pressure spring is in the original length, the front plate, the transverse plate and the suspended plate are supported through the cylinder and the movable rod, and can be automatically closed when being rolled by a vehicle, and when the vehicle leaves, the original shape can be automatically recovered under the action of the spring and the pressure spring; when the vehicle drives in the reverse direction, the cylinder can cling to the limiting baffle plate and cannot rotate in the reverse direction, and then the front plate and the transverse plate cannot be closed, so that the vehicle is prevented from driving in the reverse direction. The device can utilize spring and pressure spring to realize better automation, and the effectual emergence probability that reduces the vehicle and move against the throne.
Drawings
Fig. 1 is a schematic structural view of the present invention, fig. 2 is a structural view of a front plate, fig. 3 is a schematic structural view of a transverse plate, fig. 4 is a partially enlarged view of a portion a, fig. 5 is a structural view and an internal structure view of a case, and fig. 6 is a sectional view of a cylinder and a movable rod.
In the figure, 1, a front plate, 101, a cylindrical bump, 102, a connecting piece, 103, tempered glass, 104, a solar power generation panel, 105, a metal plate, 2, a green LED lamp tube, 3, a box body, 301, a connecting plate, 302, a connecting piece, 303, a limit baffle, 304, a positioning block, 4, a movable rod, 5, a cylinder, 6, a pressure spring, 7, a transverse plate, 701, a cylindrical bump, 702, a connecting piece, 703, tempered glass, 704, a solar power generation panel, 705, a metal plate, 8, a suspended plate, 801, a connecting piece, 9, a red LED lamp, 10, a lead, 11, a storage battery, 12 and a spring.
Detailed Description
The utility model provides a control one-way speed reduction roadblock that traveles of car, by front bezel 1, cylindrical lug 101, connecting piece 102, toughened glass 103, solar panel 104, metal sheet 105, green LED fluorescent tube 2, box 3, connecting plate 301, connecting piece 302, limit baffle 303, locating piece 304, movable rod 4, drum 5, pressure spring 6, diaphragm 7, cylindrical lug 701, connecting piece 702, toughened glass 703, solar panel 704, metal sheet 705, unsettled version 8, connecting piece 801, red LED lamp 9, wire 10, battery 11 and spring 12 are constituteed, front bezel 1 have three layer construction, its characterized in that: the solar electric heating cabinet comprises tempered glass 103, a solar power generation board 104 and a metal plate 105, wherein the tempered glass 103 is arranged on the uppermost layer, the solar power generation board 104 is positioned between the tempered glass 103 and the metal plate 105 and tightly attached to the tempered glass 103, cylindrical bumps 101 for increasing wheel friction are arranged on the tempered glass 103, the tempered glass 103 is divided into two rows, the two rows are arranged at the same interval, small holes for mounting green LEDs 2 are formed in the tempered glass 103, a connecting piece 102 is cylindrical, a circular hole is formed in the middle and distributed on two sides of a front plate 1, the front plate 1 is connected with a box body 3 through the connecting piece 102, and the front plate 1 can rotate on the box body 3 through the connecting piece 102; the transverse plate 7 is also of a three-layer structure and comprises toughened glass 703, a solar power generation plate 704 and a metal plate 705, wherein the toughened glass 703 is positioned on the upper layer, the solar power generation plate 704 is positioned between the toughened glass 703 and the metal plate 705 and is tightly attached to the toughened glass 703 and the metal plate 705, two rows of cylindrical lugs 701 with equal intervals are distributed on the toughened glass 703, 4 connecting pieces 702 are distributed on two sides of the transverse plate 7, the transverse plate 7 is connected with the suspended plate 8 and the front plate 1 through the connecting pieces 702, and the transverse plate 7 is positioned between the suspended plate 8 and the front plate 1; the suspended plate 8 is only provided with one layer of structure, small holes for mounting the red LED lamps 9 are distributed above the suspended plate 8, and the suspended plate 8 is connected with the transverse plate 8 through a connecting piece 801; the box body 3 comprises two connecting plates 301, two connecting pieces 302, two limiting baffle plates 303 and two positioning blocks 304, wherein the connecting plates 301 are tightly attached to the inner wall of the box body 3, the left side and the right side of the connecting plates are respectively provided with two positioning blocks 304, the two positioning blocks 304 are used for supporting the front plate 1 and the transverse plate 7 when the device is closed, the middle of each positioning block 304 is provided with a round hole, each limiting baffle plate is welded on the bottom surface of the box body 3 and is arranged on the same straight line, the limiting baffle plates 303 are welded on the bottom surface of the box body 3 and are attached to the side surfaces of the positioning blocks 304, the; the storage battery 11 is arranged between the rear wall of the box body 3 and the limiting baffle 303; the solar power generation panels 704 and 104 are respectively connected with the storage battery 11 through the lead 10, and the storage battery 11 is connected with the green LED lamp 2 and the red LED lamp 9; the bottom of the cylinder 5 is provided with a round hole which is connected with the positioning block 304 through a positioning pin, a round through hole is arranged above the movable rod 4, the round through hole is connected with the connecting pieces 702 and 102 through a point pin and is arranged in the middle of the cylinder 5, and the cylinder 5 is connected with the movable rod 4 through a spring 12; the pressure spring 6 is respectively connected with the outer wall of the cylinder 5 and the bottom surface of the box body 3.
When the device is used, a pit with the size same as that of the box body 3 needs to be dug on a road and fixed in the pit. The pressure spring 6 makes the cylinder 5 and the bottom surface inside the box body 3 form a certain angle when not receiving external force, the spring 12 inside the cylinder 5 makes the movable rod 4 and the bottom surface of the cylinder 5 have a certain distance when not receiving external force, and the front plate 1, the transverse plate 7 and the suspended plate 8 are in a supporting state through the pressure spring 6 and the spring 12. When the vehicle went according to the assigned direction, the wheel at first rolled front bezel 1, under the effect of pressure, make front bezel 1 rotate around connecting piece 102, and then roll diaphragm 7, make movable rod 4 be close to the bottom surface of drum 5, make spring 12 be in compression state this moment, drum 5 can rotate around the round hole of locating piece 304 simultaneously, be close to the bottom surface in box 3, can the pressure spring 6 be in compression state this moment, front bezel 1 and diaphragm 7 can laminate in the top of the connecting plate 301 of box 3, make front bezel 1 and diaphragm 7 flush with the road surface, and then make the vehicle pass through safely. When the vehicle leaves, the front plate 1 and the cross plate 7 are returned to the supporting state under the action of the spring 12 and the compression spring 6. When the vehicle drives in the wrong direction, the vehicle can prop against the suspended plate 8, and then the cylinder 5 can not rotate reversely under the limit of the limit baffle 303, and then the front plate 1 and the transverse plate 7 can not rotate to be flush with the road surface, so that the purpose of preventing the vehicle from driving in the wrong direction is achieved.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (6)
1. The utility model provides a control one-way speed reduction roadblock that traveles of car, is by front bezel, cylindrical lug, connecting piece, toughened glass, solar panel, metal sheet, green LED lamp, box, connecting plate, limit baffle, locating piece, movable rod, drum, pressure spring, diaphragm, hang empty board, connection structure, red LED lamp, wire, spring and battery and constitutes its characterized in that: the front plate is of a three-layer structure and comprises toughened glass, a solar power generation plate and a metal plate, wherein the toughened glass is arranged on the uppermost layer, the solar power generation plate is positioned between the toughened glass and the metal plate and is tightly attached to the toughened glass, cylindrical protrusions for increasing wheel friction are arranged on the toughened glass, the toughened glass is divided into two rows, the two rows are the same in distance, small holes for mounting green LEDs are formed in the toughened glass, a connecting piece is cylindrical, a round hole is formed in the middle of the connecting piece and is distributed on two sides of the front plate, the front plate is connected with the box body through the connecting piece, and the front plate can rotate on the box body through the; the transverse plate is also of a three-layer structure and comprises toughened glass, a solar power generation plate and a metal plate, wherein the toughened glass is positioned on the upper layer, the solar power generation plate is positioned between the toughened glass and the metal plate and is tightly attached to the toughened glass, two rows of cylindrical bulges with equal intervals are distributed on the toughened glass, 4 connecting pieces are distributed on two sides of the transverse plate, the transverse plate is connected with the suspended plate and the front plate through the connecting pieces, and the transverse plate is positioned between the suspended plate and the front plate; the suspended plate is only provided with one layer of structure, small holes for mounting the red LED lamps are distributed above the suspended plate, and the suspended plate is connected with the transverse plate through a connecting piece; the box body comprises two connecting plates, two connecting pieces, two limiting baffle plates and two positioning blocks, the connecting plates are tightly attached to the inner wall of the box body, the left side and the right side of the box body are respectively provided with two positioning blocks, the two positioning blocks are provided with round holes in the middle, the two positioning blocks are welded on the bottom surface of the box body and are arranged on the same straight line, the limiting baffle plates are welded on the bottom surface of the box body and are attached to the side surfaces of the positioning blocks, the two connecting pieces are of cylindrical structures, the middle of each connecting piece is provided with a through hole, and; the storage battery is arranged between the rear wall of the box body and the limiting baffle; the solar power generation panel is connected with the storage battery through the lead, and the storage battery is connected with the green LED lamp and the red LED lamp; the bottom of the cylinder is provided with a round hole which is connected with the positioning block through a positioning pin, a round through hole is arranged above the movable rod, the round through hole is connected with the connecting piece through a point pin and is arranged in the middle of the cylinder, and the cylinder is connected with the movable rod through a spring; the pressure springs are respectively connected with the outer walls of the four cylinders and the bottom surface of the box body; the transverse plate, the front plate and the suspended plate are positioned above the road surface under the condition that no vehicle runs, and the transverse plate is parallel to the road surface; when a vehicle drives on the device, the front plate, the transverse plate and the road surface are in the same horizontal plane.
3. A deceleration barrier for controlling unidirectional travel of a vehicle as defined in claim 1, wherein: the red LED lamps are arranged in the small pits of the suspended plate, and the red LEDs form a straight shape to indicate that the traffic is forbidden.
4. A deceleration barrier for controlling unidirectional travel of a vehicle as defined in claim 1, wherein: the cylindrical bumps on the front plate are arranged in two rows, 9 bumps are arranged in each row, the height of each cylindrical bump is 5mm, and the cylindrical bumps have draft angles; the cylindrical lugs on the transverse plate are arranged in two rows, each row is 7 and is uniformly distributed, the height of the cylindrical lugs is 5mm, and the cylindrical lugs have draft angles.
5. A deceleration barrier for controlling unidirectional travel of a vehicle as defined in claim 1, wherein: the suspended plate is in a vertical state under the action of gravity and can rotate around the connecting piece randomly under the blowing of wind.
6. A deceleration barrier for controlling unidirectional travel of a vehicle as defined in claim 1, wherein: the number of the pressure springs, the cylinders and the movable rods is 4 respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710715858.XA CN108004976B (en) | 2017-08-20 | 2017-08-20 | Speed reduction roadblock for controlling one-way driving of automobile |
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CN201710715858.XA CN108004976B (en) | 2017-08-20 | 2017-08-20 | Speed reduction roadblock for controlling one-way driving of automobile |
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CN108004976A CN108004976A (en) | 2018-05-08 |
CN108004976B true CN108004976B (en) | 2020-04-28 |
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CN201710715858.XA Active CN108004976B (en) | 2017-08-20 | 2017-08-20 | Speed reduction roadblock for controlling one-way driving of automobile |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108894147A (en) * | 2018-07-17 | 2018-11-27 | 芜湖芬特勘测服务有限公司 | A kind of device that town road prevents vehicle retrograde |
CN111986496B (en) * | 2020-08-31 | 2021-08-10 | 邱晓东 | Lane information guiding device for vehicle running |
CN113565027B (en) * | 2021-08-05 | 2022-07-19 | 中冶华成(武汉)工程有限公司 | Effectual deceleration strip of shock attenuation for municipal works |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201635028U (en) * | 2009-09-11 | 2010-11-17 | 李树颜 | Retrogradation restricting device for one-way road |
CN203320445U (en) * | 2013-05-31 | 2013-12-04 | 王群 | Novel road deceleration strip |
CN204356718U (en) * | 2014-12-17 | 2015-05-27 | 王旋梅 | The means of transportation that a kind of nonmotorized vehicle lane anti-reversing travels |
CN204435252U (en) * | 2015-01-21 | 2015-07-01 | 王震宇 | A kind of new type of safe deceleration strip |
CN205711807U (en) * | 2016-05-29 | 2016-11-23 | 华南理工大学 | A kind of deceleration strip capable of being lifted |
CN206173828U (en) * | 2016-10-28 | 2017-05-17 | 向春林 | One -way deceleration strip of folding |
CN207498863U (en) * | 2017-09-06 | 2018-06-15 | 田腾 | A kind of slowed down road-block for controlling automobile one-way traffic |
-
2017
- 2017-08-20 CN CN201710715858.XA patent/CN108004976B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201635028U (en) * | 2009-09-11 | 2010-11-17 | 李树颜 | Retrogradation restricting device for one-way road |
CN203320445U (en) * | 2013-05-31 | 2013-12-04 | 王群 | Novel road deceleration strip |
CN204356718U (en) * | 2014-12-17 | 2015-05-27 | 王旋梅 | The means of transportation that a kind of nonmotorized vehicle lane anti-reversing travels |
CN204435252U (en) * | 2015-01-21 | 2015-07-01 | 王震宇 | A kind of new type of safe deceleration strip |
CN205711807U (en) * | 2016-05-29 | 2016-11-23 | 华南理工大学 | A kind of deceleration strip capable of being lifted |
CN206173828U (en) * | 2016-10-28 | 2017-05-17 | 向春林 | One -way deceleration strip of folding |
CN207498863U (en) * | 2017-09-06 | 2018-06-15 | 田腾 | A kind of slowed down road-block for controlling automobile one-way traffic |
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Effective date of registration: 20200401 Address after: The former group of small village Zuo town of Huian County of Fujian province in 362000 after the Quanzhou top 38 North Applicant after: HUIAN HENGJIUSHENG ELECTRON TECHNOLOGY Co.,Ltd. Address before: 250101 Shandong Jianzhu University, Shandong, Ji'nan Applicant before: Tian Teng |
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