Urban road planning and marking device

Abstract

The application relates to a drawing device, and discloses a city road planning line drawing device which comprises a drawing board, a movable adjusting plate and a proportional drawing mechanism. The proportional drawing mechanism comprises a shell, an output assembly and a drawing assembly. The shell is slidably connected to a second vertically-extending sliding groove through a joint on the back side of the shell, and the joint can rotate relative to the movable adjusting plate. The movable adjusting plate can slide along a first horizontally-extending sliding groove relative to the drawing board, so that the shell can slide and rotate relative to the drawing board. At least two outer gears with different circumferences are arranged in the output assembly, so that the ratio of the moving distance of the main line drawing rod engaged with the outer gears to the circumference ratio is the same. Therefore, the circumference ratio can be set according to the required zooming multiple, and then the required zoomed line length can be directly output, so that the error caused by calculation and value taking is avoided, and the overall accuracy of drawing is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a drawing tool, in particular to a city road planning line drawing device. BACKGROUND

[0002] Road planning survey drawing is a crucial link in the process of road design and planning. It involves collecting key information such as topography, soil geology, traffic flow, and drawing corresponding maps and graphics for analyzing and planning road alignment, layout, and design parameters. The accuracy and detail of this process have a significant impact on the success of road construction. Road planning survey drawing is usually completed by professional surveying teams using advanced measuring equipment and tools for data collection and processing. Through topographic surveying, geological surveying, and other means, the geographical environment and physical characteristics data of the road are collected.

[0003] When conducting road planning survey drawing, due to the actual road or terrain being generally large and the drawing being small, in order to draw the complete road or terrain onto a piece of paper, it is often necessary to scale down the road or terrain according to a certain scale, and then draw it on the paper according to the scaled size.

[0004] When performing scale drawing, the actual size of the road or terrain and the required scaling ratio are generally calculated to obtain the drawing size, and then the drawing is performed on the paper according to the drawing size. However, when encountering scaling ratios such as 3:1 or 7:1, the actual size is 3 times or 7 times the drawing size. Due to the limitations of the accuracy of the drawing tools, the drawing size obtained by calculation usually needs to be rounded, and the value after rounding will have a certain error, which affects the accuracy of the drawing. SUMMARY

[0005] The purpose of the present application is to provide a city road planning line drawing device that solves the problem of low drawing accuracy caused by errors in the rounding of the calculated drawing size in the prior art.

[0006] To achieve the above purpose, the present application provides a city road planning line drawing device, which comprises a drawing board, a movable adjusting plate and a scale drawing mechanism.

[0007] The drawing board has a horizontal direction and a vertical direction. A first sliding groove is provided on the front side of the drawing board, and the first sliding groove extends in the horizontal direction. The movable adjusting plate is arranged on the front side of the drawing board, and the movable adjusting plate has a guide portion. The guide portion is slidingly engaged in the first sliding groove, so that the movable adjusting plate can slide relative to the drawing board along the first sliding groove.

[0008] A second sliding groove is provided on the front side of the movable adjusting plate, and the second sliding groove extends in the vertical direction. The vertical direction is perpendicular to the horizontal direction.

[0009] The proportional drawing mechanism comprises a shell, an output assembly and a drawing assembly;

[0010] The rear side of the shell is provided with a joint part which is slidingly engaged in the second sliding groove and can rotate relative to the movable adjusting plate;

[0011] The shell is provided with a mounting cavity in which the output assembly is arranged and rotationally connected with the shell, the output assembly comprises at least two outer gears with different circumferences and coaxially arranged, the drawing assembly comprises at least two main ruling bars corresponding to the outer gears respectively, the main ruling bars are slidingly arranged in the shell and are provided with rack parts engaging with the outer gears, and the main ruling bars extend transversely;

[0012] The same end of the main ruling bar along the transverse direction is provided with a placing part for placing a brush.

[0013] Further, the output assembly comprises one main outer gear and several auxiliary outer gears;

[0014] The circumference of any auxiliary outer gear is defined as N, and the circumference of the main outer gear is defined as M; wherein M is an integer multiple of N.

[0015] Further, the proportional drawing mechanism further comprises an auxiliary assembly; the auxiliary assembly comprises an auxiliary ruling bar and a connecting rod;

[0016] The shell is provided with moving grooves on opposite side surfaces thereof along the transverse direction, the moving grooves extend along the vertical direction and are located on one side of the main ruling bars, the auxiliary ruling bar extends along the transverse direction, the auxiliary ruling bar is slidingly arranged in the moving grooves respectively, and the connecting position between the auxiliary ruling bar and the shell can be adjusted along the moving grooves;

[0017] The auxiliary ruling bar can be detachably connected to any main ruling bar through the connecting rod, and the auxiliary ruling bar is provided with a clamping part for placing a brush at one end thereof close to the drawing board.

[0018] Further, the auxiliary assembly further comprises a limiting block, the limiting block is connected to one side surface of the shell along the transverse direction and is oppositely arranged above the moving grooves;

[0019] The rear side of the limiting block is provided with a plurality of grooves along the vertical direction in sequence and in intervals, the front side of the auxiliary ruling bar is provided with a plurality of protrusions matching the grooves, and the protrusions extend along the transverse direction;

[0020] The limiting block can move along the front-rear direction, and the limiting block is used for limiting the vertical movement of the auxiliary line marking rod relative to the shell through the connection of the groove and the protrusion.

[0021] Further, a scale is arranged on the side surface of the limiting block arranged on the shell.

[0022] Further, a reset spring is arranged outside the connecting part, and the reset spring is connected to the shell and the movable adjusting plate.

[0023] Further, two ends of at least one of the main line marking rods pass through the shell, and one of the main line marking rods, of which two ends pass through the shell, is defined as a standard line marking rod.

[0024] A length scale is arranged along the length direction of the standard line marking rod.

[0025] Further, the drawing board comprises a board body and a fixed adjusting plate, and the fixed adjusting plate is connected to the front side surface of the board body in a spaced manner.

[0026] The first sliding groove is arranged on the fixed adjusting plate, the movable adjusting plate is located between the board body and the fixed adjusting plate, one end of the movable adjusting plate is provided with the guide part, the guide part is slidably arranged in the first sliding groove from the back to the front, a locking piece is screwed on the guide part, and the locking piece is located on the front side of the fixed adjusting plate.

[0027] Further, a fixed clamp is movably arranged on the front side surface of the drawing board, and the fixed clamp is arranged on one side of the drawing board in the transverse direction.

[0028] The front side surface of the drawing board is further provided with a limiting plate, and the limiting plate is located on the side opposite to the first sliding groove.

[0029] Further, a fixing assembly is further included.

[0030] The fixing assembly comprises a base and a support, and the support is fixedly connected to the base, and the top of the support is provided with a fixing block.

[0031] The rear side surface of the drawing board is provided with a fixing groove matched with the fixing block, and the support is detachably connected to the fixing groove through the fixing block.

[0032] Compared with the prior art, the urban road planning line marking device has the following beneficial effects:

[0033] The application provides a city road planning line drawing device, which comprises a drawing board, a movable adjusting plate and a proportional drawing mechanism; the proportional drawing mechanism comprises a shell, an output assembly and a drawing assembly; the shell is slidably connected to a second sliding groove extending in the vertical direction through a joint part on the rear side of the shell, and the joint part can rotate relative to the movable adjusting plate; the movable adjusting plate can slide relative to the drawing board along a first sliding groove extending in the horizontal direction, so that the shell can slide and rotate relative to the drawing board, and then the main line drawing rod slidingly arranged in the shell can slide and rotate relative to the drawing board. At least two outer gears with different circumferences are arranged in the output assembly, so that the ratio of the moving distance of the main line drawing rod engaged with the outer gears to the circumference ratio is the same, and the circumference ratio can be set according to the required scaling multiple, and then the required scaled line length can be directly output, so that the error caused by calculation and value taking is avoided, and the overall accuracy of drawing is improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 FIG. 1 is a structural schematic view of one angle of a city road planning line drawing device according to an embodiment of the application;

[0035] Figure 2 FIG. 2 is an assembly schematic view of one angle of a proportional drawing mechanism in a city road planning line drawing device according to an embodiment of the application;

[0036] Figure 3 FIG. 3 is an assembly schematic view of another angle of a proportional drawing mechanism in a city road planning line drawing device according to an embodiment of the application;

[0037] Figure 4 FIG. 4 is a schematic view of the A area in FIG. 1; Figure 1

[0038] Figure 5 FIG. 5 is a structural schematic view of one angle of a city road planning line drawing device according to an embodiment of the application, which does not comprise a fixing assembly;

[0039] Figure 6 FIG. 6 is a structural schematic view of another angle of a city road planning line drawing device according to an embodiment of the application.

[0040] ​In the figure, 100, urban road planning line drawing device; 1, drawing board; 10, fixed groove; 11, board body; 12, fixed adjusting plate; 120, first sliding groove; 2, movable adjusting plate; 20, second sliding groove; 21, guide part; 22, locking part; 23, rubber strip; 231, clamping groove; 3, proportional drawing mechanism; 31, shell; 310, mounting cavity; 311, combination part; 3111, tightening part; 3112, reset spring; 312, moving groove; 313, scale; 32, output assembly; 320, external tooth; 33, drawing assembly; 330, main line drawing rod; 3301, rack part; 3302, placing hole; 34, auxiliary assembly; 341, auxiliary line drawing rod; 342, connecting rod; 343, limiting block; 344, expansion block; 4, fixed clamp; 5, limiting plate; 6, fixed assembly; 61, base; 62, support; 621, fixed block; 7, supporting handrail; 8, pointing mark. DETAILED DESCRIPTION

[0041] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0042] As Figures 1-6 shown, the urban road planning line drawing device 100 of the embodiment of the present application comprises a drawing board 1, a movable adjusting plate 2 and a proportional drawing mechanism 3; the drawing board 1 is provided with a horizontal direction X and a vertical direction Y; the front side of the drawing board 1 is provided with a first sliding groove 120, which extends along the horizontal direction X; the movable adjusting plate 2 is arranged on the front side of the drawing board 1; the movable adjusting plate 2 is provided with a guide part 21, which is slidingly connected to the first sliding groove, so that the movable adjusting plate 2 can slide along the first sliding groove relative to the drawing board 1; the front side of the movable adjusting plate 2 is provided with a second sliding groove 20, which extends along the vertical direction Y; the vertical direction Y is perpendicular to the horizontal direction X; the proportional drawing mechanism 3 comprises a shell 31, an output assembly 32 and a drawing assembly 33; the rear side of the shell 31 is provided with a combination part 311, which is slidingly connected to the second sliding groove 20, and the combination part can rotate relative to the movable adjusting plate 2; the shell 31 is provided with a mounting cavity 310; the output assembly 32 is arranged in the mounting cavity 310 and is connected to the shell 31; the output assembly 32 comprises at least two external teeth 320 with different circumferences and arranged coaxially; the drawing assembly 33 comprises at least two main line drawing rods 330 corresponding to the external teeth 320; the main line drawing rods 330 are slidingly arranged in the shell 31; the main line drawing rods 330 are provided with rack parts 3301 engaging with the external teeth 320; the main line drawing rods 330 extend along the horizontal direction X; the same end of the main line drawing rods 330 is respectively provided with a placing part for placing a brush.

[0043] According to the above technical scheme, the movable adjusting plate 2 can slide along the first sliding groove 120 relative to the drawing board 1, the shell 31 is combined and connected to the second sliding groove 20 through the combination part on the back side, and the combination part can rotate relative to the movable adjusting plate 2, so that the shell 31 can slide and rotate relative to the movable adjusting plate 2, and thus the main ruling rod slidingly arranged in the shell can slide and rotate relative to the drawing board 1. When any main ruling rod 330 moves a certain distance, the other main ruling rod 330 is driven to move, and the ratio of the moving distance of the main ruling rod 330 to the moving distance of the driven main ruling rod 330 is the ratio of the circumferences of the corresponding external teeth 320. By setting the reduction ratio as the ratio of the circumferences of the corresponding external teeth 320 of the moving main ruling rod 330 to the corresponding external teeth 320 of the driven main ruling rod 330, the moving main ruling rod 330 can move a distance corresponding to the original size, and the driven main ruling rod 330 can move a distance corresponding to the reduction ratio, so as to output a line length corresponding to the reduction ratio. Thus, the required drawing size can be directly output according to the original size, so as to avoid the error caused by calculation and rounding, and the drawing accuracy is improved.

[0044] Preferably, as shown in Figure 2 In order to facilitate the placement and replacement of the brush, the placement part is a placement hole 3302 arranged at the end of the main ruling rod 330, and the end of the main ruling rod 330 with the placement hole 3302 is screwed with a locking piece, which is used to lock and fix the brush in the placement hole.

[0045] Further, as shown in Figure 2 In order to make the urban road planning and drawing device suitable for common drawing scenes, the output assembly 32 includes one main external tooth and several auxiliary external teeth, and the circumference of any auxiliary external tooth is defined as N, and the circumference of the main external tooth is defined as M, wherein M is an integer multiple of N.

[0046] Preferably, in the embodiment, the output assembly includes one main external tooth and two auxiliary external teeth, wherein the circumference of the main external tooth is three times the circumference of one auxiliary external tooth and seven times the circumference of the other auxiliary external tooth, so that the driven main ruling rod can output 1 / 3 and 1 / 7 of the line length, thereby meeting the requirements of common proportional scaling drawing which is prone to errors caused by calculation.

[0047] Further, as shown inFigure 2 and Figure 3 As shown, when drawing, there is usually a need to draw parallel line segments. To meet this drawing requirement, the proportional drawing mechanism 3 also includes an auxiliary component 34. The auxiliary component 34 includes an auxiliary scribing rod 341 and a connecting rod 342. The outer shell 31 has a moving groove 312 on its opposite side surfaces in the horizontal direction X. The moving groove 312 extends along the vertical direction Y and is located on one side of each of the main scribing rods. The auxiliary scribing rod 341 extends along the horizontal direction X and slides through each of the moving grooves 312. The connection position between the auxiliary scribing rod 341 and the outer shell 31 can be adjusted along the moving groove 312. The auxiliary scribing rod 341 can be detachably connected to any of the main scribing rods through the connecting rod 342. The auxiliary scribing rod 341 has a clamping part 3410 for placing a pen at one end near the drawing board 1. In use, the auxiliary line marking rod 341 is connected to the main line marking rod corresponding to any desired drawing ratio via the connecting rod 342, and parallel lines are drawn accordingly; and the connection position between the auxiliary line marking rod 341 and the outer shell 31 can be adjusted along the moving groove 312, so that the spacing of the parallel lines is adjustable, further improving the applicability of the urban road planning and marking equipment.

[0048] Furthermore, such as Figure 2 and Figure 3 As shown, since the auxiliary marking rod 341 slides through each of the moving slots 312, it may rotate or move unnecessarily during operation. To ensure its parallelism with the main marking rod, the auxiliary component 34 also includes a limiting block 343. The limiting block 343 is connected to one side of the outer casing 31 along the horizontal X direction and is positioned above the moving slots 312. The rear side of the limiting block 343 is provided with a plurality of grooves spaced apart along the vertical Y direction. The front side of the auxiliary marking rod 341 is provided with a plurality of protrusions that are adapted to the grooves and extend along the horizontal X direction. The limiting block 343 can move in the front-back direction. Through the connection between the grooves and the protrusions, it is used to limit the vertical movement of the auxiliary marking rod 341 relative to the outer casing.

[0049] Preferably, such as Figure 2 and Figure 3As shown, due to the coaxial arrangement of the outer teeth 320, the main scribing rod 330 engaged with each outer tooth 320 will have a distance difference in the front-back direction; the auxiliary scribing rod 341 can be detachably connected to any of the main scribing rods through the connecting rod 342, so that the connecting rod 342 is parallel to the front side or rear side of the shell 31 when connected to achieve better force output; the auxiliary assembly 34 further comprises an expansion block 344 connected to the front side and / or rear side of the auxiliary scribing rod 341, so that when the auxiliary scribing rod 341 is detachably connected to any of the main scribing rods through the connecting rod 342, the connecting rod 342 is parallel to the front side or rear side of the shell 31 by connecting the connecting rod 342 to the auxiliary scribing rod 341 or the expansion block 344 as needed.

[0050] Further, as shown in Figure 2 and Figure 3 , the side of the shell 31 on which the limiting block is arranged is provided with a scale 313 extending along the vertical direction Y, through which the specific position of the auxiliary scribing rod 341 in the moving groove 312 can be determined, so as to obtain the distance between parallel lines, facilitating the user to draw parallel lines.

[0051] Further, as shown in Figure 2 and Figure 3 , the two ends of at least one of the main scribing rods 330 pass through the shell 31, and one of the main scribing rods 330 with both ends passing through the shell is defined as a standard scribing rod; a length scale is arranged along the length direction of the standard scribing rod. In the embodiment, the standard scribing rod is engaged with the main outer teeth, so as to directly read the movement distance of the standard scribing rod according to the length scale, so as to output a reduced integer multiple of the movement distance of the main scribing rod 330 engaged with the auxiliary outer teeth, and thus slide out a line with a reduced multiple.

[0052] Further, as shown in Figure 1 , Figure 4 and Figure 6As shown, the drawing board 1 comprises a board body 11 and a fixed adjusting plate 12 which is connected to the front side of the board body 11 at intervals; the first sliding groove 120 is opened on the fixed adjusting plate 12, the movable adjusting plate 2 is located between the board body 11 and the fixed adjusting plate 12, one end of the movable adjusting plate 2 is provided with the guide part 21 which is slid from back to front and is penetrated into the first sliding groove 120, the guide part 21 is screwed with the locking member 22, the locking member 22 is located on the front side of the fixed adjusting plate 12, the locking member 22 and the guide part 21 are screwed, so that when the locking member 22 is screwed back, the movable adjusting plate 2 will be fixed in the first sliding groove 120, avoiding sliding along the first sliding groove 120 relative to the drawing board 1, ensuring the stability and accuracy of drawing.

[0053] Preferably, as shown in Figure 1 and Figure 4 to avoid the shell 31 from sliding along the second sliding groove 20 relative to the drawing board 1 during drawing; the second sliding groove 20 is fixed with a rubber strip 23, the rubber strip 23 is provided with a vertical clamping groove 231, the connecting part 311 comprises a screwing member 3111; the screwing member 3111 is coaxially arranged with each external tooth and penetrates through the front and back sides of the shell. By screwing the screwing member 3111 back and clamping it in the clamping groove 231, the shell 31 can be fixedly connected in the second sliding groove 20.

[0054] Preferably, as shown in Figure 3 the connecting part 311 further comprises a reset spring 3112, the reset spring 3112 is fixedly arranged on the back side of the shell 31 and arranged on the outer periphery of the screwing member 3111. When the screwing member 3111 is screwed back and clamped in the clamping groove 231, the bottom end of the reset spring 3112 is clamped in the second sliding groove 20, so that the shell 31 can be automatically reset after rotating.

[0055] Further, as shown in Figure 1 the front side of the drawing board 1 is movably provided with a fixed clamp 4, the fixed clamp 4 is arranged on one side of the drawing board 1 along the transverse direction X; the front side of the drawing board 1 is further provided with a limiting plate 5, the limiting plate 5 is located on the side of the drawing board 1 opposite to the first sliding groove 120. The fixed clamp 4 can clamp the drawing paper on the drawing board 1 to avoid moving during drawing; the limiting plate 5 can limit the object on the drawing board 1 from sliding off the side opposite to the first sliding groove 120 when the drawing board 1 inclines or moves abnormally.

[0056] Further, as shown in Figure 1 and Figure 6As shown, in order to improve the applicability of the urban road planning line drawing device 100, so as to meet the needs of drawing work in different scenes; the urban road planning line drawing device 100 further comprises a fixing assembly 6; the fixing assembly 6 comprises a base 61 and a support 62; the support 62 is fixedly connected to the base 61, and the top of the support 62 is provided with a fixing block 621; the rear side of the drawing board 1 is provided with a fixing groove 10 matched with the fixing block 621, and the support 62 is detachably connected to the fixing groove 10 through the fixing block 621. So that the drawing board 1 can be erected on the ground or other lower objects through the fixing assembly 6 to draw, and can also be detached from the fixing assembly 6 and placed on a table or other higher object to draw.

[0057] Preferably, as Figure 5 As shown, the back of the drawing board 1 is also provided with a supporting handrail 7, and the user can support and hold the drawing board 1 through the supporting handrail 7 on the back to meet the temporary drawing needs.

[0058] Preferably, as Figure 1 As shown, in order to facilitate the direction of the shell 31 after rotation during drawing, the shell 31 is provided with a direction mark 8, and the direction mark 8 is parallel to the horizontal direction X.

[0059] The working process of the present application is: according to the different use scenes, different fixing modes of the drawing board 1 are selected, including: placing the drawing board 1 horizontally on the table top or other objects easy to draw, temporarily supporting and holding the drawing board 1 through the supporting handrail 7, detachably connecting and fixing the drawing board 1 to the support 62 through the fixing groove 10;

[0060] One side of the drawing paper is clamped and fixed on the fixing clamp 4, and the drawing paper is laid flat; a plurality of drawing pens are respectively arranged in the placing holes 3302 in the main line drawing rods 330 according to actual needs. The locking member 22 is tightened to fix the movable adjusting plate 2 in the first sliding groove 120; the tightening member 3111 is tightened backward to be clamped in the clamping groove 231, and the shell 31 is fixed in the second sliding groove 20; then according to the actual drawing needs, the shell 31 is rotated to reach the corresponding angle in cooperation with the external protractor.

[0061] When parallel line segments need to be drawn, the auxiliary line drawing rod 341 is connected to the required main line drawing rod 330 through the connecting rod 342 according to the required line length, and the auxiliary line drawing rod 341 is moved in the moving groove 312 to reach the required parallel line spacing; the main line drawing rod 330 is moved so that the auxiliary line drawing rod 341 outputs parallel lines.

[0062] In summary, the embodiment of the present application provides a kind of urban road planning line drawing equipment 100, it includes drawing board 1, movable adjusting plate 2 and proportion drawing mechanism 3;Proportion drawing mechanism 3 includes shell 31, output assembly 32 and drawing assembly 33, shell 31 is slidably connected to the second sliding groove 20 along vertical extension by the joint portion 311 of its back side, and the joint portion 311 can be rotated relative to movable adjusting plate 2;And movable adjusting plate 2 can slide along the first sliding groove 120 extending transversely relative to drawing board 1, so that shell 31 can slide and rotate relative to drawing board 1, in turn, so that the main line bar 330 slidingly arranged in the shell 31 can slide and rotate relative to drawing board 1.And by at least two outer teeth 320 of different circumferences in output assembly 32, the ratio of the movement distance of the main line bar 330 engaged with the outer teeth 320 is the same as the circumference ratio, so that the circumference ratio can be set by the required scaling factor, and then the required scaled line length is directly output, which avoids calculating the value and then drawing, avoids the error caused by calculating the value, and improves the accuracy of the whole drawing.

[0063] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered within the protection scope of the present application.

Claims

1. A city road planning and marking device, characterized in that, Includes a drawing board, a movable adjustment board, and a scale drawing mechanism; The drawing board has horizontal and vertical dimensions; the front side of the drawing board is provided with a first sliding groove, which extends horizontally; the movable adjustment plate is provided on the front side of the drawing board, and the movable adjustment plate has a guide portion, which is slidably engaged in the first sliding groove, so that the movable adjustment plate can slide relative to the drawing board along the first sliding groove. The front side of the movable adjustment plate is provided with a second sliding groove, which extends vertically and is perpendicular to the horizontal direction. The scale drawing mechanism includes a housing, an output component, and a drawing component; The rear side of the housing has a connecting part, which is slidably engaged in the second sliding groove, and the connecting part is rotatable relative to the movable adjustment plate. The housing has an installation cavity, the output component is located in the installation cavity and is rotatably connected to the housing, the output component includes at least two external teeth with different circumferences and coaxial arrangement, the drawing component includes at least two main scribing rods corresponding one-to-one with each of the external teeth, the main scribing rods slide through the housing, and the main scribing rods have a rack portion that meshes with the external teeth, and the main scribing rods extend laterally; The main line-drawing rod is provided with a placement part for placing the brush at the same end along the horizontal direction; The scale drawing mechanism also includes auxiliary components; the auxiliary components include auxiliary scribing rods and connecting rods; The outer casing has movable grooves on its two opposite sides in the horizontal direction. The movable grooves extend vertically and are located on one side of each of the main marking rods. The auxiliary marking rods extend horizontally and are slidably inserted into each of the movable grooves. The connection position between the auxiliary marking rods and the outer casing can be adjusted along the movable grooves. The auxiliary line-drawing rod can be detachably connected to any of the main line-drawing rods via the connecting rod. The auxiliary line-drawing rod has a clamping part for placing a paintbrush at one end near the drawing board.

2. The urban road planning and marking equipment as described in claim 1, characterized in that, The output component includes a main external tooth and several secondary external teeth; Let N be the perimeter of any set of external teeth, and M be the perimeter of the main external teeth; where M is an integer multiple of N.

3. The urban road planning and marking equipment as described in claim 1, characterized in that, The auxiliary component also includes a limiting block, which is connected to one side of the housing along the lateral direction and is positioned above the moving groove. The rear side of the limiting block is provided with a plurality of grooves spaced apart vertically, and the front side of the auxiliary marking rod is provided with a plurality of protrusions that are adapted to the grooves, and the protrusions extend horizontally. The limiting block can move in the front-back direction, and through the connection between the groove and the protrusion, it is used to restrict the vertical movement of the auxiliary marking rod relative to the outer shell.

4. The urban road planning and marking equipment as described in claim 3, characterized in that, A scale is provided on the side of the limiting block on the outer shell, and the scale extends vertically.

5. The urban road planning and marking equipment as described in claim 1, characterized in that, A return spring is fitted outside the joint, and the return spring is connected to the outer shell and the movable adjustment plate.

6. The urban road planning and marking equipment as described in claim 1, characterized in that, At least one of the main marking rods has both ends passing through the housing, and one of the main marking rods with both ends passing through the housing is defined as a standard marking rod; The standard marking rod has length markings along its length.

7. The urban road planning and marking equipment as described in any one of claims 1-6, characterized in that, The drawing board includes a board body and a fixed adjustment plate, wherein the fixed adjustment plate is connected at intervals to the front side of the board body; The first slide groove is formed on the fixed adjustment plate, the movable adjustment plate is located between the plate body and the fixed adjustment plate, one end of the movable adjustment plate is provided with the guide part, the guide part slides through the first slide groove from back to front, and a locking member is screwed on the guide part, the locking member is located on the front side of the fixed adjustment plate.

8. The urban road planning and marking equipment as described in claim 1, characterized in that, A fixing clip is movably provided on the front side of the drawing board, and the fixing clip is located on one side of the drawing board along the lateral direction; and / or The front side of the drawing board is also provided with a limiting plate, which is located on the side of the drawing board opposite to the first slide groove.

9. The urban road planning and marking equipment as described in claim 1, characterized in that, It also includes fixed components; The fixing component includes a base and a bracket; the bracket is fixedly connected to the base, and a fixing block is provided on the top of the bracket; The back side of the drawing board is provided with a fixing groove that is adapted to the fixing block, and the bracket is detachably connected to the fixing groove through the fixing block.

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