Traffic sign line marking device and marking method for roads and bridges

Abstract

The present invention discloses a traffic marking line drawing device and a drawing method for road bridges, which includes a U-shaped vehicle frame with a downward opening, a middle main shaft arranged at the lower part of the U-shaped vehicle frame, a restraint wheel arranged on the middle main shaft, an annular crawler arranged on the outer side surface of the restraint wheel, an annular printing line plate arranged outside the annular crawler, a paint bucket arranged on the front side of the U-shaped vehicle frame, a push rod arranged on the rear side of the U-shaped vehicle frame, and two front wheels and two rear wheels arranged on the U-shaped vehicle frame; the present invention has the characteristics that the paint will not splash, the safety of the operator is good, and the quality of the printed marking line is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic sign line marking, and in particular to a traffic sign line marking device and a marking method for road bridges with good safety. Background Art

[0002] At present, the traffic sign line marking device for road bridges generally uses a power device to drive an air compressor for spraying and marking. Because power is required, the pressure during spraying will cause the paint to splash. The splashed paint will pollute the environment, and the operator will also be passively inhaled into the paint, which may cause damage to the health of the operator. Summary of the Invention

[0003] The invention purpose of the present invention is to overcome the deficiency that there is a situation of paint splashing during spraying and marking of the traffic sign line marking device in the prior art, and to provide a traffic sign line marking device and a marking method for road bridges with good safety.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A traffic sign line marking device for road bridges includes a U-shaped frame with a downward opening, a middle main shaft arranged at the lower part of the U-shaped frame, a restraint wheel arranged on the middle main shaft, an annular crawler arranged on the outer side surface of the restraint wheel, and an annular printing line plate arranged outside the annular crawler, a paint bucket arranged on the front side of the U-shaped frame, a push rod arranged on the rear side of the U-shaped frame, two front wheels and two rear wheels arranged on the U-shaped frame; the annular printing line plate is made of a porous adsorption material, and a detachable weight is arranged on the push rod; a feeding channel extending forward and backward is arranged at the lower end of the paint bucket, a fixed seepage plate adapted to the radian of the annular printing line plate is arranged at the feeding port of the feeding channel, an adjustable seepage plate is arranged on the feeding channel inside the fixed seepage plate, the fixed seepage plate is tightly attached to the adjustable seepage plate, and a number of corresponding feeding holes are arranged on the adjustable seepage plate and the fixed seepage plate. The upper end of the adjustable seepage plate extends outside the upper opening arranged on the feeding channel and is connected to an adjusting screw arranged on the feeding channel. The lower end of the adjustable seepage plate extends outside the lower opening arranged on the feeding channel, and sealing rings are arranged on both the upper opening and the lower opening; the two front wheels are respectively connected to the left front side and the right front side of the U-shaped frame through two front wheel fixing rods; the two rear wheels are respectively rotatably connected to the left rear side and the right rear side of the U-shaped frame through two rear wheel movable rods, and a limiting mechanism is arranged between the two rear wheel movable rods and the U-shaped frame.

[0006] The fixed seepage plate and the adjustable seepage plate of the present invention are used to control the start and stop of the paint flowing out of the paint bucket;

[0007] By adjusting the lifting of the adjusting screw, the adjustable material seepage plate is moved up and down, thereby changing the corresponding area sizes of the discharge holes on the adjustable material seepage plate and the discharge holes on the fixed material seepage plate, and changing the outflow speed of the coating; the coating flows out through the discharge holes corresponding to each other on the adjustable material seepage plate and the fixed material seepage plate and adheres to the annular printing line plate, and there will be no situation of coating splashing.

[0008] Therefore, the present invention adopts a non-powered embossing structure, which does not require power, the coating will not splash, the operator will not inhale the fine particles of the splashing coating, and the adhesion of the coating is made more firm through the printing of pressure.

[0009] Preferably, the two rear wheels are respectively connected to the lower ends of the two rear wheel movable rods, and the upper ends of the two rear wheel movable rods are respectively connected to the left rear side and the right rear side of the U-shaped frame through two support shafts; the limiting mechanism includes two tension springs provided at the left rear part and the right rear part of the U-shaped frame and two rear wheel limit pins provided on the left and right sides of the U-shaped frame. The two tension springs are respectively connected to the lower parts of the two rear wheel movable rods, the two rear wheel limit pins are respectively located on the lower sides of the two rear wheel movable rods, and the two rear wheel limit pins are respectively located above the two tension springs.

[0010] The setting of the two tension springs and the two rear wheel limit pins makes the present invention have good stability, can meet the requirements of printing the marking line, and is also easy to move.

[0011] When printing the marking line, the annular printing line plate can be in extrusion contact with the ground. When moving the present invention, the annular printing line plate keeps a certain distance from the ground, which is convenient to move and the annular printing line plate is not easily damaged.

[0012] Preferably, the restraint wheel includes an intermediate shaft cylinder provided on the intermediate main shaft, a left circular side plate connected to the left end of the intermediate shaft cylinder, a right circular side plate connected to the right end of the intermediate shaft cylinder, and a concentric circular ring plate provided between the left circular side plate and the right circular side plate; the annular crawler belt and the annular printing line plate are both located between the left circular side plate and the right circular side plate outside the concentric circular ring plate, and the outer edge of the annular printing line plate exposes beyond the outer edges of the left circular side plate and the right circular side plate. There are M connecting cylinders arranged in an annular interval on the outer side surface of the concentric circular ring plate, and there are M connecting rods arranged in an annular interval on the inner side surface of the annular crawler belt, M≥30; the connecting rods are inserted into the corresponding connecting cylinders to form a connecting body, and a compression spring is provided on the connecting body.

[0013] The structural setting of the restraint wheel makes the structure of the present invention stable and not easily damaged.

[0014] The connection rod, connection cylinder and compression spring are arranged such that the concentric circular plates of the present invention can drive the annular crawler to rotate, and the annular crawler can move within a certain range relative to the concentric circular plates. Each compression spring tensions the annular crawler, and the annular crawler presses the annular printing plate against the ground. When printing, the contact between the annular printing plate and the ground has a certain elasticity, the annular printing plate is not easily damaged, and the printing quality of the marking line is ensured.

[0015] Preferably, a plurality of arc-shaped convex segments arranged at intervals are provided on the outer peripheral surface of the annular printing plate.

[0016] The annular printing plate provided with arc-shaped convex segments is used for printing intermittent marking lines.

[0017] Preferably, a material receiving rack is provided on the lower side of the material discharging channel, and a pull-out type material receiving tray is provided on the material receiving rack. The pull-out type material receiving tray is close to the outer side surface of the annular printing plate below the adjustable material seeping plate.

[0018] When the part of the annular printing plate just adhered with the coating gradually moves downward as the annular printing plate rotates on the ground, if there is excess coating adhered to the annular printing plate, the excess coating will drip from the annular printing plate, and the dripping coating automatically enters the pull-out type material receiving tray.

[0019] Preferably, a plurality of adjusting gaskets are provided between the U-shaped vehicle frame and the left circular side plate, and a plurality of adjusting gaskets are provided between the U-shaped vehicle frame and the right circular side plate. Each adjusting gasket is rotatably connected to the intermediate shaft; the cross-section of the annular printing plate is convex-shaped.

[0020] By changing the number of adjusting gaskets and the distance between the left circular side plate and the right circular side plate, and changing the widths of the annular crawler and the annular printing plate, the present invention can be used for printing marking lines of various different widths, and the present invention has a wide application range.

[0021] Preferably, the push rod is U-shaped with an opening forward. The left front part of the push rod is connected to the left rear part of the U-shaped vehicle frame, and the right front part of the push rod is connected to the right rear part of the U-shaped vehicle frame.

[0022] A marking method for a traffic marking line scribing device for road bridges includes the following steps:

[0023] Step 1, when in a static state, the discharge holes of the adjustable material seeping plate and the fixed material seeping plate are mutually misaligned; the operator loads the coating into the coating bucket. At this time, the center of gravity position of the traffic marking line scribing device for road bridges is at the coating bucket, the two tension springs tension the two rear wheels, and the two rear wheel limit pins play a limiting role, and a certain distance is maintained between the annular printing plate and the ground;

[0024] Step 2: The operator adjusts the adjusting screw to stagger or completely coincide the discharge holes of the adjustable material seepage plate and the fixed material seepage plate to adjust the flow rate of the coating material.

[0025] Step 3: The operator pushes the push-pull rod to the position where marking is required, pre-rotates the restraint wheel to evenly adhere the coating material on the annular marking plate, and aligns the front wheel with the guiding line to be marked.

[0026] Step 4: Install a weight on the push-pull rod to stretch the two tension springs, so that the annular marking plate touches the ground; push the push-pull rod forward, and under the action of each compression spring, the annular crawler presses the annular marking plate and pushes it towards the ground. Continuously push the push-pull rod to print continuous marking lines on the ground.

[0027] Preferably, a number of arc-shaped convex segments arranged at intervals are provided on the outer peripheral surface of the annular marking plate.

[0028] Step 3 is replaced with the following steps:

[0029] The operator pushes the push-pull rod to the position where marking is required, pre-rotates the restraint wheel to evenly adhere the coating material on each arc-shaped convex segment of the annular marking plate, and aligns the front wheel with the guiding line to be marked.

[0030] Step 4 is replaced with the following steps: Install a weight on the push-pull rod to stretch the two tension springs, so that each arc-shaped convex segment touches the ground; push the push-pull rod forward, and under the action of each compression spring, the annular crawler presses the annular marking plate and pushes each arc-shaped convex segment towards the ground. Continuously push the push-pull rod to print intermittent marking lines on the ground.

[0031] Preferably, a material receiving rack is provided on the lower side of the discharge channel, and a pull-out type material receiving tray is provided on the material receiving rack. The pull-out type material receiving tray is close to the outer side surface of the annular marking plate below the adjustable material seepage plate.

[0032] The following steps are further included:

[0033] The part of the annular marking plate that has just adhered to the coating material gradually moves downward as the annular marking plate rotates on the ground. The excess coating material adhered to the annular marking plate drips off the annular marking plate, and the dripping coating material enters the pull-out type material receiving tray.

[0034] When there is more coating material accumulated in the pull-out type material receiving tray, replace it with an empty pull-out type material receiving tray on the material receiving rack to continue receiving the dripping coating material, so as to ensure the uniform amount of coating material adhered to the annular marking plate and ensure the quality of the marking lines.

[0035] Therefore, the present invention has the following beneficial effects: good stability, easy to move, simple operation, not easily damaged, good adaptability; the coating material will not splash, the safety of the operator is good, and the quality of the printed marking lines is stable. Description of the Drawings

[0036] Figure 1 is a front view of the present invention;

[0037] Figure 2 is Figure 1 a right side view of

[0038] Figure 3 is Figure 1 a sectional view taken along line A-A of

[0039] Figure 4 is a rear view of the present invention;

[0040] Figure 5 is a schematic structural view of the U-shaped frame and push rod of the present invention;

[0041] Figure 6 is a partial sectional view of the connecting rod, connecting cylinder and compression spring of the present invention;

[0042] Figure 7 is a sectional view of the annular printed circuit board of the present invention;

[0043] Figure 8 is a schematic structural view of the annular printed circuit board of the present invention;

[0044] Figure 9 is Figure 1 a partial enlarged view of Detailed Embodiments

[0045] The present invention will be further described below in conjunction with the accompanying drawings and detailed embodiments.

[0046] Embodiment 1

[0047] As Figures 1-7The illustrated embodiment is a traffic marking line drawing device for road bridges, including a U-shaped vehicle frame 1 with a downward opening, a middle main shaft 11 provided at the lower part of the U-shaped vehicle frame, a restraint wheel 2 provided on the middle main shaft, an annular crawler 21 provided on the outer side surface of the restraint wheel, and an annular printing line plate 22 provided on the outer side of the annular crawler. A paint bucket 3 is provided at the front side of the U-shaped vehicle frame, a push rod 4 is provided at the rear side of the U-shaped vehicle frame, two front wheels 5 and two rear wheels 6 are provided on the U-shaped vehicle frame; the annular printing line plate is made of a porous adsorption material, and a detachable weight 41 is provided on the push rod; a discharge channel 30 extending forward and backward is provided at the lower end of the paint bucket, a fixed seepage plate 31 adapted to the curvature of the annular printing line plate is provided at the discharge port of the discharge channel, an adjustable seepage plate 32 is provided on the discharge channel inside the fixed seepage plate, the fixed seepage plate is closely attached to the adjustable seepage plate, and a plurality of corresponding discharge holes are provided on the adjustable seepage plate and the fixed seepage plate. The upper end of the adjustable seepage plate extends out of the upper opening provided on the discharge channel and is connected to an adjusting screw 33 provided on the discharge channel. The lower end of the adjustable seepage plate extends out of the lower opening provided on the discharge channel, and sealing rings are provided on both the upper opening and the lower opening; the two front wheels are respectively connected to the left front side and the right front side of the U-shaped vehicle frame through two front wheel fixing rods 51; the two rear wheels are respectively rotatably connected to the left rear side and the right rear side of the U-shaped vehicle frame through two rear wheel movable rods 61, and a limiting mechanism is provided between the two rear wheel movable rods and the U-shaped vehicle frame.

[0048] As can be seen Figure 1 from Figure 2 and Figure 4 it can be seen that the paint bucket is connected to the U-shaped vehicle frame through two fixing plates 36. Figure 1 and Figure 4 The arrows in

[0049] point to the advancing direction of the present invention.

[0050] The constraint wheel includes an intermediate shaft cylinder 201 provided on the intermediate main shaft, a left circular side plate 202 connected to the left end of the intermediate shaft cylinder, a right circular side plate 203 connected to the right end of the intermediate shaft cylinder, and a concentric circular ring plate 204 provided between the left circular side plate and the right circular side plate; both the annular crawler belt and the annular printing line plate are located between the left circular side plate and the right circular side plate outside the concentric circular ring plate, the outer edge of the annular printing line plate exposes beyond the outer edges of the left circular side plate and the right circular side plate, 36 connecting cylinders 241 arranged at annular intervals are provided on the outer side surface of the concentric circular ring plate, and 36 connecting rods 211 arranged at annular intervals are provided on the inner side surface of the annular crawler belt; the connecting rods are inserted into the corresponding connecting cylinders to form a connecting body, and a compression spring 242 is provided on the connecting body.

[0051] A material receiving frame 34 is provided on the lower side of the discharge channel, a pull-out type material receiving tray 35 is provided on the material receiving frame, and the pull-out type material receiving tray is close to the outer side surface of the annular printing line plate below the adjustable material seepage plate.

[0052] There are 2 adjusting gaskets 205 between the U-shaped vehicle frame and the left circular side plate, and 2 adjusting gaskets are provided between the U-shaped vehicle frame and the right circular side plate. Each adjusting gasket is rotatably connected to the intermediate shaft; the cross-section of the annular printing line plate is convex. By adjusting the width of the convex part of the convex shape, the width of the marked line drawn can be adjusted.

[0053] The push-pull rod is U-shaped with an opening forward. The left front part of the push-pull rod is connected to the left rear part of the U-shaped vehicle frame, and the right front part of the push-pull rod is connected to the right rear part of the U-shaped vehicle frame.

[0054] As Figure 9 shown, a bending plate 101 is provided on the paint channel, the adjusting screw is located on the bending plate and is threadedly connected to the bending plate, and a locking nut 102 is provided on the adjusting screw; first, turn the adjusting screw to move the adjusting screw upward relative to the bending plate, and then turn the locking nut upward to lock the adjusting screw. At this time, the adjustable material seepage plate moves upward, achieving the purpose of adjusting the corresponding positions of the discharge holes of the adjustable material seepage plate and the fixed material seepage plate;

[0055] Similarly, loosen the locking nut downward, then move the adjusting screw downward relative to the bending plate, and then turn the locking nut upward to lock the adjusting screw. The adjustable material seepage plate moves downward, achieving the purpose of adjusting the corresponding positions of the discharge holes of the adjustable material seepage plate and the fixed material seepage plate.

[0056] A marking method for a traffic marking line marking device for road bridges includes the following steps:

[0057] Step 1, when in a static state, the discharge holes of the adjustable material seepage plate and the fixed material seepage plate are misaligned with each other; the operator loads the paint into the paint bucket. At this time, the center of gravity of the traffic sign line marking device for road bridges is at the paint bucket. The two tension springs pull the two rear wheels tightly, and the two rear wheel limit pins play a limiting role. There is a certain distance between the annular printing line plate and the ground;

[0058] Step 2, the operator adjusts the adjusting screw to stagger or completely coincide the discharge holes of the adjustable material seepage plate and the fixed material seepage plate by a certain position to adjust the paint flow rate;

[0059] Step 3, the operator pushes the push rod to the position where marking is required, pre-rotates the restraint wheel to evenly adhere the paint on the annular printing line plate, and aligns the front wheel with the guiding line to be marked;

[0060] Step 4, install a weight on the push rod to stretch the two tension springs, so that the annular printing line plate contacts the ground; push the push rod forward. Under the action of each compression spring, the annular track presses and pushes the annular printing line plate against the ground. Continuously push the push rod to print a continuous marking line on the ground.

[0061] In addition, the following steps are also included:

[0062] The part of the annular printing line plate that has just adhered to the paint gradually moves downward as the annular printing line plate rotates on the ground. The excess paint adhered to the annular printing line plate drips off the annular printing line plate and the dripping paint enters the pull-out material receiving tray.

[0063] When there is more paint accumulated in the pull-out material receiving tray, replace it with an empty pull-out material receiving tray on the material receiving rack and continue to receive the dripping paint.

[0064] Embodiment 2

[0065] As Figure 8 shown, in Embodiment 2, a plurality of arc-shaped convex segments 221 arranged at intervals are provided on the outer peripheral surface of the annular printing line plate.

[0066] Replace Step 3 in Embodiment 1 with the following steps:

[0067] The operator pushes the push rod to the position where marking is required, pre-rotates the restraint wheel to evenly adhere the paint on each arc-shaped convex segment of the annular printing line plate, and aligns the front wheel with the guiding line to be marked;

[0068] Replace Step 4 in Embodiment 1 with the following steps:

[0069] Install a heavy weight on the push rod, so that the two tension springs are stretched, and each arc-shaped convex section contacts the ground; push the push rod forward, and under the action of each compression spring, the endless track presses the endless printing plate tightly and pushes each arc-shaped convex section towards the ground. Continuously push the push rod to print intermittent marking lines on the ground.

[0070] Other structures and methods in Embodiment 2 are the same as those in Embodiment 1.

[0071] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A traffic marking line drawing device for road bridges, characterized in that, It includes a downward-opening U-shaped frame (1), a middle main shaft (11) provided at the lower part of the U-shaped frame, a restraint wheel (2) provided on the middle main shaft, an annular crawler belt (21) provided on the outer side surface of the restraint wheel, an annular printing line plate (22) provided outside the annular crawler belt, a paint bucket (3) provided at the front side of the U-shaped frame, a push-pull rod (4) provided at the rear side of the U-shaped frame, two front wheels (5) and two rear wheels (6) provided on the U-shaped frame; the annular printing line plate is made of a porous adsorption material, and a detachable weight (41) is provided on the push-pull rod; a discharge channel (30) extending forward and backward is provided at the lower end of the paint bucket, a fixed seepage plate (31) adapted to the curvature of the annular printing line plate is provided at the discharge port of the discharge channel, an adjustable seepage plate (32) is provided on the discharge channel inside the fixed seepage plate, the fixed seepage plate is closely attached to the adjustable seepage plate, a number of corresponding discharge holes are provided on the adjustable seepage plate and the fixed seepage plate, the upper end of the adjustable seepage plate extends outside the upper opening provided on the discharge channel and is connected to an adjusting screw (33) provided on the discharge channel, the lower end of the adjustable seepage plate extends outside the lower opening provided on the discharge channel, and sealing rings are provided on both the upper opening and the lower opening; the two front wheels are respectively connected to the left front side and the right front side of the U-shaped frame through two front wheel fixing rods (51); the two rear wheels are respectively rotatably connected to the left rear side and the right rear side of the U-shaped frame through two rear wheel movable rods (61), and a limiting mechanism is provided between the two rear wheel movable rods and the U-shaped frame.

2. The traffic sign line marking device for road bridges according to claim 1, wherein, The two rear wheels are respectively connected to the lower ends of the two rear wheel movable rods, and the upper ends of the two rear wheel movable rods are respectively connected to the left rear side and the right rear side of the U-shaped frame through two support shafts (62); the limiting mechanism includes two tension springs (63) provided at the left rear part and the right rear part of the U-shaped frame and two rear wheel limit pins (64) provided on the left and right sides of the U-shaped frame, the two tension springs are respectively connected to the lower parts of the two rear wheel movable rods, the two rear wheel limit pins are respectively located on the lower sides of the two rear wheel movable rods, and the two rear wheel limit pins are respectively located above the two tension springs.

3. The traffic sign line marking device for road bridges according to claim 2, characterized in that, The restraint wheel includes a middle shaft cylinder (201) provided on the middle main shaft, a left circular side plate (202) connected to the left end of the middle shaft cylinder, a right circular side plate (203) connected to the right end of the middle shaft cylinder, and a concentric circular ring plate (204) provided between the left circular side plate and the right circular side plate; the annular crawler belt and the annular printing line plate are both located between the left circular side plate and the right circular side plate outside the concentric circular ring plate, the outer edge of the annular printing line plate exposes outside the outer edges of the left circular side plate and the right circular side plate, M connecting cylinders (241) arranged in an annular interval are provided on the outer side surface of the concentric circular ring plate, M connecting rods (211) arranged in an annular interval are provided on the inner side surface of the annular crawler belt, M≥30; the connecting rods are inserted into the corresponding connecting cylinders to form a connecting body, and a compression spring (242) is provided on the connecting body.

4. The traffic sign line marking device for road bridges according to claim 1, characterized in that, A number of arc-shaped convex segments (221) arranged at intervals are provided on the outer peripheral surface of the annular printing line plate.

5. The traffic sign line marking device for road bridges according to claim 1, characterized in that, A receiving frame (34) is provided on the lower side of the discharge channel, a pull-out receiving tray (35) is provided on the receiving frame, and the pull-out receiving tray is close to the outer side surface of the annular printing line plate below the adjustable seepage plate.

6. The traffic sign line marking device for road bridges according to claim 3, characterized in that, A number of adjusting shims (205) are provided between the U-shaped frame and the left circular side plate, and a number of adjusting shims are provided between the U-shaped frame and the right circular side plate. Each adjusting shim is rotatably connected to the intermediate shaft; the cross-section of the annular printing line plate is convex-shaped.

7. The traffic sign line marking device for road bridges according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that, The push-pull rod is U-shaped with an opening facing forward. The left front part of the push-pull rod is connected to the left rear part of the U-shaped frame, and the right front part of the push-pull rod is connected to the right rear part of the U-shaped frame.

8. A marking method for a traffic marking line device for road bridges as described in claim 3, characterized in that, It includes the following steps: Step 1, when in a static state, the discharge holes of the adjustable material seepage plate and the fixed material seepage plate are misaligned with each other; the operator loads the paint into the paint bucket. At this time, the center of gravity of the traffic sign line marking device for road bridges is at the paint bucket. The two tension springs tighten the two rear wheels, and the two rear wheel limit pins play a limiting role. There is a certain distance between the annular printing line plate and the ground; Step 2, the operator adjusts the adjusting screw to stagger or completely coincide the discharge holes of the adjustable material seepage plate and the fixed material seepage plate to adjust the paint flow rate; Step 3, the operator pushes the push-pull rod to the position where marking is required, and pre-rotates the restraint wheel to evenly adhere the paint on the annular printing line plate, and aligns the front wheel with the guiding line to be marked; Step 4, a weight is installed on the push-pull rod to stretch the two tension springs, so that the annular printing line plate contacts the ground; Push the push-pull rod forward. Under the action of each compression spring, the annular track presses and pushes the annular printing line plate towards the ground. Continuously push the push-pull rod to print a continuous marking line on the ground.

9. The marking method of the traffic marking line marking device for road bridges according to claim 8, characterized in that, A number of arc-shaped raised segments arranged at intervals are provided on the outer peripheral surface of the annular printing line plate; Step 3 is replaced with the following steps: The operator pushes the push-pull rod to the position where marking is required, and pre-rotates the restraint wheel to evenly adhere the paint on each arc-shaped raised segment of the annular printing line plate, and aligns the front wheel with the guiding line to be marked; Step 4 is replaced with the following steps: A weight is installed on the push-pull rod to stretch the two tension springs, so that each arc-shaped raised segment contacts the ground; Push the push-pull rod forward. Under the action of each compression spring, the annular track presses the annular printing line plate and pushes each arc-shaped raised segment towards the ground. Continuously push the push-pull rod to print an intermittent marking line on the ground.

10. The line marking method of the line marking device for traffic signs on road bridges according to claim 8, characterized in that, A material receiving rack is provided on the lower side of the discharge channel. A pull-out type material receiving tray is provided on the material receiving rack. The pull-out type material receiving tray is close to the outer side surface of the annular printing line plate below the adjustable material seepage plate; It also includes the following steps: The part of the annular printing line plate that has just adhered to the paint gradually moves downward as the annular printing line plate rotates on the ground. The excess paint adhered to the annular printing line plate drips off the annular printing line plate, and the dripping paint enters the pull-out type material receiving tray.

Images