CN110158439A - A kind of road construction roadmarking device - Google Patents
A kind of road construction roadmarking device Download PDFInfo
- Publication number
- CN110158439A CN110158439A CN201910506969.9A CN201910506969A CN110158439A CN 110158439 A CN110158439 A CN 110158439A CN 201910506969 A CN201910506969 A CN 201910506969A CN 110158439 A CN110158439 A CN 110158439A
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- CN
- China
- Prior art keywords
- fixed
- workbench
- vertical plate
- plate
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/16—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings
- E01C23/20—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ
- E01C23/22—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ by spraying
- E01C23/225—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ by spraying comprising means for mechanically working the applied material, e.g. smoothing brushes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The present invention relates to lineation device technical fields, and disclose a kind of road construction roadmarking device, including workbench, the bottom of the workbench is fixed with castor, it is welded with bracket on the left of the upper surface of the workbench, handle is fixed on the left of the bracket, the lower rotation of the handle is connected with scribing line handle, the right side of the bracket is fixed with grip block close to the upper surface of the workbench, and the inside of the grip block is removably connected with scribing line bottle；Indexing plate is set on the right side of workbench, one end of indexing plate is pointed, and indexing plate can be used as the object of reference of scribing line, the indexing plate location is scribing position, installs first motor in the bottom of indexing plate, the bottom of first motor connects fan, in fan rotation, firstly, fan blows away the dust on road surface, then, lineation device is walked about, fan can further dry up the coating of scribing line, shorten the coating air-dried time, convenient for preferably using for pedestrian.
Description
Technical field
The present invention relates to lineation device technical field, specially a kind of road construction roadmarking device.
Background technique
Road construction refers to using road as object, and then the engineering entity that road pavement is constructed, conserved and managed, in road
When road is constructed, need to cross on the road surface of road, lines on road surface is mainly delineated in road surface, is crossed by lineation device
It can be by road k-path partition, for being guided to pedestrian.
Existing technology has the following problems:
(1), before using the scribing line of lineation device road pavement, need operator that the road surface crossed will be needed to clean out,
Lineation device itself can not road pavement implement cleaning, cause working efficiency low, there are certain shortcomings；
(2), it after roadmarking, needs to air-dry line coatings, air-dry time is long, is not well positioned to meet the need of pedestrian
It asks.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of road construction roadmarking device, operation is solved
Member need the road surface of scribing line is cleaned out, lineation device itself can not road pavement implement cleaning, lead to ineffective ask
The problem of topic, it is long to also solve line coatings air-dry time, is not well positioned to meet pedestrian's demand.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of road construction roadmarking device, including
Workbench, the bottom of the workbench are fixed with castor, are welded with bracket on the left of the upper surface of the workbench, the bracket
Left side is fixed with handle, and the lower rotation of the handle is connected with scribing line handle, and the right side of the bracket is close to the workbench
Upper surface is fixed with grip block, and the inside of the grip block is removably connected with scribing line bottle, and the bottom of the scribing line bottle is fixed with
The right side of spray head, the bracket slidably connects stock close to the side of the scribing line bottle, and the inside of the stock is fixed with touching
Touching lever, the upper surface of the workbench open up through slot, and the upper surface of the workbench is welded with bottom close to the side of the through slot
Seat, one end of the pedestal is fixed with vertical plate, and the inside of the through slot, the top of the pedestal are run through in the side of the vertical plate
It is fixed with the second motor, the output shaft of second motor is rotatablely connected through the inside of the vertical plate, and with the vertical plate,
The left pivot movement of the vertical plate is connected with round wheel, and the left side of the circle wheel is fixed with shaft, and the lateral wall of the shaft, which rotates, to be connected
Be connected to fanning strip, the left side of the vertical plate is fixed with shaft close to the lower section of the circle wheel, and the side of the shaft through
The inside of the fanning strip, the left side of the vertical plate are fixed with supporting block far from the lower section of the circle wheel, the supporting block it is interior
Side walls are connected with round bar, and the bottom of the round bar is fixed with hairbrush.
Preferably, the fanning strip includes that U-board, connecting plate and teeth fan plate, the U-board are located at the outer of the shaft
Side wall, and be rotatablely connected with the shaft, the bottom of the U-board is fixed with the connecting plate, the lateral wall of the connecting plate
It is fixed with the teeth fan plate.
Preferably, indexing plate is welded on the right side of the workbench, the bottom of the indexing plate is fixed with first motor, institute
The lower rotation for stating first motor is connected with fan.
Preferably, the upper surface of the workbench is removably connected with protective cover close to the side of the indexing plate, described
The upper surface of protective cover is fixed with battery, the input terminal of the first motor and second motor with the battery
Output end is electrically connected.
Preferably, the quantity of the supporting block is two, and two supporting blocks are located at the left side of the vertical plate, two institutes
The inner sidewall for stating supporting block slidably connects the round bar by the fanning strip.
Preferably, the vertical plate be in inverted T-shaped, the vertical plate through the inside of the workbench, and with the workbench
It is fixedly connected.
(3) beneficial effect
The present invention provides a kind of road construction roadmarking device, have it is following the utility model has the advantages that
(1), the present invention by the way that pedestal is arranged on the surface of workbench, pacify on pedestal by the side connection board of the pedestal
Equipped with the second motor, the output shaft of the second motor runs through the inside of vertical plate, and the output shaft of the second motor is connected with round wheel, circle
The left side of wheel is connected with fanning strip by shaft, and fanning strip can rotate on shaft, shaft is fixed on the left of vertical plate, this turn
Axis is applied in the inside of fanning strip, and shaft can limit the position of fanning strip, and then rotates fanning strip with shaft dot,
Round bar is slidably connected by supporting block below the left side of vertical plate, the bottom of the round bar is fixed with hairbrush, round bar surface and sector
Plate contact, and then slide round bar in the horizontal direction, to wave with electric brush, hairbrush can be cleared up the sundries on road
Completely, it realizes and roads pavement scribing line on one side clear up road while, easy to operate, work efficiency is high, avoids clearing up road in advance
Trouble.
(2), the present invention is by being arranged indexing plate on the right side of workbench, and one end of indexing plate is pointed, and indexing plate can
Using the object of reference as scribing line, the indexing plate location is scribing position, indexing plate bottom install first motor, first
The bottom of motor connects fan, and in fan rotation, firstly, fan blows away the dust on road surface, then, lineation device is walked about,
Fan can further dry up the coating of scribing line, shorten the coating air-dried time, convenient for preferably using for pedestrian.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the left view partial structural diagram in the present invention；
Fig. 3 is the workbench overlooking structure diagram in Fig. 1 of the present invention.
In figure: 1, handle；2, scribing line handle；3, bar is touched；4, stock；5, bracket；6, grip block；7, workbench；8, castor；
9, spray head；10, supporting block；11, hairbrush；12, round bar；13, shaft；14, through slot；15, fan；16, first motor；17, it guides
Plate；18, pedestal；19, the second motor；20, circle wheel；21, protective cover；22, battery；23, vertical plate；24, fanning strip；241, U-shaped
Plate；242, connecting plate；243, teeth fan plate；25, shaft；26, scribing line bottle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1-3, the present invention provides a kind of technical solution: a kind of road construction roadmarking device, including work
Make platform 7, the bottom of workbench 7 is fixed with castor 8, is welded with bracket 5 on the left of the upper surface of workbench 7, the left side of bracket 5 is fixed
There is handle 1, the lower rotation of handle 1 is connected with scribing line handle 2, and the right side of bracket 5 is fixed with clamping close to the upper surface of workbench 7
Plate 6, the inside of grip block 6 are removably connected with scribing line bottle 26, and the bottom of scribing line bottle 26 is fixed with spray head 9, and the right side of bracket 5 is leaned on
The side of nearly scribing line bottle 26 slidably connects stock 4, and the inside of stock 4 is fixed with touching bar 3, and the upper surface of workbench 7 opens up
The upper surface of through slot 14, workbench 7 is welded with pedestal 18 close to the side of through slot 14, and one end of pedestal 18 is fixed with vertical plate 23,
And the inside of through slot 14 is run through in the side of vertical plate 23, the top of pedestal 18 is fixed with the second motor 19, the output of the second motor 19
Axis is rotatablely connected through the inside of vertical plate 23, and with vertical plate 23, and the left pivot movement of vertical plate 23 is connected with circle wheel 20, circle wheel 20
Left side is fixed with shaft 25, and the lateral wall of shaft 25 is rotatably connected to fanning strip 24, and the left side of vertical plate 23 is under circle wheel 20
Side is fixed with shaft 13, and the side of shaft 13, through the inside of fanning strip 24, the left side of vertical plate 23 is far under circle wheel 20
Side is fixed with supporting block 10, and the inner sidewall of supporting block 10 slidably connects round bar 12, and the bottom of round bar 12 is fixed with hairbrush 11, the
The model M5120-502 of two motors 19, when the second motor 19 is run, the output shaft of the second motor 19 drives circle wheel 20 and shaft
25 rotate together, due to being connected with fanning strip 24 in 25 lateral wall of shaft, in such manner, it is possible to it is further driven to the rotation of fanning strip 24,
The arc-shaped sliding in the bottom of fanning strip 24, and then round bar 12 is driven to slide, it is final to realize that hairbrush 11 waves cleaning ground.
Further, fanning strip 24 includes that U-board 241, connecting plate 242 and teeth fan plate 243, and U-board 241 is located at shaft
25 lateral wall, and be rotatablely connected with shaft 25, the bottom of U-board 241 is fixed with connecting plate 242, the lateral wall of connecting plate 242
It is fixed with teeth fan plate 243, U-board 241 rotates on shaft 25, and while shaft 25 rotates, U-board 241 is also being slided,
Fanning strip 24 is dot rotation with shaft 13, and teeth fan the arc-shaped sliding of plate 243, and then can drive round bar by fanning strip 24
12 slidings.
Further, the right side of workbench 7 is welded with indexing plate 17, and the bottom of indexing plate 17 is fixed with first motor 16,
The lower rotation of first motor 16 is connected with fan 15, the model 68KTYZ of first motor 16, and first motor 16 can drive
Fan 15 rotates, and one end of indexing plate 17 is pointed, and indexing plate 17 can be used as the object of reference of scribing line, and 17 institute of indexing plate is in place
Setting is scribing line place, and when fan 15 rotates, firstly, fan 15 blows away the dust on road surface, then, lineation device is walked about, wind
Fan 15 can further dry up the coating of scribing line, shorten the coating air-dried time.
Further, the upper surface of workbench 7 is removably connected with protective cover 21, protective cover close to the side of indexing plate 17
21 upper surface is fixed with battery 22, the input terminal of first motor 16 and the second motor 19 with the output end of battery 22 electricity
Property connection, protective cover 21 is in rectangular shape, and the inside of protective cover 21 is closed with pedestal 18, the second motor 19, circle wheel 20, fan-shaped
Plate 24 etc., protective cover 21 is for stashing part.
Further, the quantity of supporting block 10 is two, and two supporting blocks 10 are located at the left side of vertical plate 23, two supporting blocks
10 inner sidewall slidably connects round bar 12 by fanning strip 24, and supporting block 10 is in rectangular shape, and supporting block 10 is mainly used for
Round bar 12 is supported, round bar 12 slides in supporting block 10.
Further, vertical plate 23 is in inverted T-shaped, and vertical plate 23 is fixedly connected through the inside of workbench 7, and with workbench 7,
Vertical plate 23 with a thickness of 0.6mm-0.9mm, vertical plate 23 is the main building block of lineation device.
Can to sum up obtain, workflow of the invention: first motor 16, the second motor 19 and battery 22 are electrically connected, the
One motor 16 can drive fan 15 to rotate, and when fan 15 rotates, firstly, fan 15 blows away the dust on road surface, then, draw
Line apparatus is walked about, and fan 15 can further dry up the coating of scribing line, shortens the coating air-dried time, the operation of the second motor 19
When, the output shaft of the second motor 19 drives circle wheel 20 and shaft 25 to rotate together, due to being connected with sector in 25 lateral wall of shaft
Plate 24 in such manner, it is possible to be further driven to the rotation of fanning strip 24, the arc-shaped sliding in the bottom of fanning strip 24, and then drives round bar 12
Sliding, final to realize that hairbrush 11 waves cleaning ground, operator holds handle 1 and pushes lineation device forward, at the same time, operation
Member's finger holds scribing line handle 2, and stock 4 just slides, and then drives touching 3 slide downward of bar contact scribing line bottle 26, then, spray head 9
Just coating is sprayed, one end of indexing plate 17 is pointed, and indexing plate 17 can be used as the object of reference of scribing line, stops in operator's finger
When only holding scribing line handle 2, coating will not spray.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of road construction roadmarking device, including workbench (7), it is characterised in that: the bottom of the workbench (7)
It is fixed with castor (8), is welded with bracket (5) on the left of the upper surface of the workbench (7), is fixed on the left of the bracket (5)
Handle (1), the lower rotation of the handle (1) are connected with scribing line handle (2), and the right side of the bracket (5) is close to the workbench
(7) upper surface is fixed with grip block (6), and the inside of the grip block (6) is removably connected with scribing line bottle (26), the scribing line
The bottom of bottle (26) is fixed with spray head (9), and the right side of the bracket (5) is slidably connected close to the side of scribing line bottle (26)
Stock (4), the inside of the stock (4) are fixed with touching bar (3), and the upper surface of the workbench (7) opens up through slot (14), institute
The upper surface for stating workbench (7) is welded with pedestal (18) close to the side of the through slot (14), and one end of the pedestal (18) is solid
Surely have vertical plate (23), and the inside of the through slot (14) is run through in the side of the vertical plate (23), the top of the pedestal (18) is solid
Surely have the second motor (19), the output shaft of second motor (19) through the vertical plate (23) inside, and with it is described vertical
Plate (23) rotation connection, the left pivot movement of the vertical plate (23) are connected with circle wheel (20), are fixed on the left of the circle wheel (20)
The lateral wall of shaft (25), the shaft (25) is rotatably connected to fanning strip (24), and the left side of the vertical plate (23) is close to described
It is fixed with shaft (13) below circle wheel (20), and the side of the shaft (13) is through the inside of the fanning strip (24),
The left side of the vertical plate (23) is taken turns far from the circle and is fixed with supporting block (10) below (20), the inside of the supporting block (10)
Wall slidably connects round bar (12), and the bottom of the round bar (12) is fixed with hairbrush (11).
2. a kind of road construction roadmarking device according to claim 1, it is characterised in that: the fanning strip (24)
Plate (243) are fanned including U-board (241), connecting plate (242) and teeth, the U-board (241) is located at the outer of the shaft (25)
Side wall, and be rotatablely connected with the shaft (25), the bottom of the U-board (241) is fixed with the connecting plate (242), described
The lateral wall of connecting plate (242) is fixed with teeth fan plate (243).
3. a kind of road construction roadmarking device according to claim 1, it is characterised in that: the workbench (7)
Right side be welded with indexing plate (17), the bottom of the indexing plate (17) is fixed with first motor (16), the first motor
(16) lower rotation is connected with fan (15).
4. a kind of road construction roadmarking device according to claim 3, it is characterised in that: the workbench (7)
Upper surface be removably connected with protective cover (21) close to the side of the indexing plate (17), the upper surface of the protective cover (21)
Be fixed with battery (22), the input terminal of the first motor (16) and second motor (19) with the battery (22)
Output end be electrically connected.
5. a kind of road construction roadmarking device according to claim 1, it is characterised in that: the supporting block (10)
Quantity be two, two supporting blocks (10) are located at the left side of the vertical plate (23), two supporting blocks (10) it is interior
Side wall slidably connects the round bar (12) by the fanning strip (24).
6. a kind of road construction roadmarking device according to claim 1, it is characterised in that: the vertical plate (23) is in
Inverted T-shaped, the vertical plate (23) and are fixedly connected through the inside of the workbench (7) with the workbench (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910506969.9A CN110158439A (en) | 2019-06-12 | 2019-06-12 | A kind of road construction roadmarking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910506969.9A CN110158439A (en) | 2019-06-12 | 2019-06-12 | A kind of road construction roadmarking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110158439A true CN110158439A (en) | 2019-08-23 |
Family
ID=67628595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910506969.9A Pending CN110158439A (en) | 2019-06-12 | 2019-06-12 | A kind of road construction roadmarking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110158439A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965452A (en) * | 2019-12-15 | 2020-04-07 | 那佳 | Road marking device |
| CN111576177A (en) * | 2020-04-17 | 2020-08-25 | 任辉慧 | Road and bridge construction road surface rubble setting-out device |
| CN114395970A (en) * | 2022-01-22 | 2022-04-26 | 陈祥招 | Road and bridge marking device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128012A (en) * | 1994-10-28 | 1996-05-21 | Nippon Kotsu Sangyo Kk | Road surface mark applying device |
| WO2011056913A2 (en) * | 2009-11-04 | 2011-05-12 | American Road Printing Llc | Environmentally friendly apparatus and method for surface printing |
| CN207121805U (en) * | 2017-07-26 | 2018-03-20 | 田云海 | A kind of road parking is used with the continuous line-plotting device cleaned |
| CN208023484U (en) * | 2018-01-31 | 2018-10-30 | 田志勇 | A kind of town road road cleaning equipment |
| CN108774983A (en) * | 2018-05-24 | 2018-11-09 | 刘平 | A kind of municipal works garden path cleaning equipment |
| CN208517804U (en) * | 2018-05-03 | 2019-02-19 | 陈观桂 | A kind of road and bridge traffic mark scoring equipment |
-
2019
- 2019-06-12 CN CN201910506969.9A patent/CN110158439A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128012A (en) * | 1994-10-28 | 1996-05-21 | Nippon Kotsu Sangyo Kk | Road surface mark applying device |
| WO2011056913A2 (en) * | 2009-11-04 | 2011-05-12 | American Road Printing Llc | Environmentally friendly apparatus and method for surface printing |
| CN207121805U (en) * | 2017-07-26 | 2018-03-20 | 田云海 | A kind of road parking is used with the continuous line-plotting device cleaned |
| CN208023484U (en) * | 2018-01-31 | 2018-10-30 | 田志勇 | A kind of town road road cleaning equipment |
| CN208517804U (en) * | 2018-05-03 | 2019-02-19 | 陈观桂 | A kind of road and bridge traffic mark scoring equipment |
| CN108774983A (en) * | 2018-05-24 | 2018-11-09 | 刘平 | A kind of municipal works garden path cleaning equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965452A (en) * | 2019-12-15 | 2020-04-07 | 那佳 | Road marking device |
| CN110965452B (en) * | 2019-12-15 | 2021-04-27 | 内蒙古帝鸿路桥有限责任公司 | Road marking device |
| CN111576177A (en) * | 2020-04-17 | 2020-08-25 | 任辉慧 | Road and bridge construction road surface rubble setting-out device |
| CN111576177B (en) * | 2020-04-17 | 2021-11-12 | 北京城建华晟交通建设有限公司 | Road and bridge construction road surface rubble setting-out device |
| CN114395970A (en) * | 2022-01-22 | 2022-04-26 | 陈祥招 | Road and bridge marking device |
| CN114395970B (en) * | 2022-01-22 | 2024-04-05 | 黄辉君 | Road and bridge marking device |
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Application publication date: 20190823 |