A line marking cart for road construction

Abstract

The utility model discloses a kind of line marking trolleys for road construction, it is related to road construction equipment technical field, including vehicle body, turnover frame, telescopic device and mounting plate, turnover frame side is hinged in vehicle body side, telescopic device one end is hinged in vehicle body top, and the other end is hinged in turnover frame;Mounting plate is horizontally installed in the back of turnover frame, and mounting plate is opened with horizontal sliding slot;Three spraying assemblies are installed in sliding slot;Spraying assembly includes spray head and vertical column with sliding slot sliding connection, vertical column is slidably sleeved with slide, its lower end is fixed with base, upper end is fixed with top seat, and vertical column is sleeved with compression spring;Compression spring upper and lower ends are respectively supported on top seat and slide, slide and base are respectively located on the upper and lower sides of mounting plate, and spray head is installed below base;The device can be quickly adjusted to the left and right positions and height of spray head through spraying assembly, and it is easy to operate;Turnover frame can be turned to vertical state by telescopic device, so that the line marking trolley is easy to store.

Description

Technical Field

[0001] This utility model relates to the field of road construction equipment technology, specifically to a road marking cart for road construction. Background Technology

[0002] In road construction, lane marking carts are commonly used for road marking. However, existing lane marking carts have a simple structure, making it too cumbersome to adjust the left and right positions of the nozzles. Furthermore, since the nozzles are generally mounted on the side of the cart, existing lane marking carts are not easy to store.

[0003] In addition, when construction workers push the marking cart to mark straight lines, the cart can easily move and deviate due to the workers' control of the force, resulting in inaccurate markings.

[0004] Therefore, there is an urgent need to develop a new type of marking cart. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a road marking cart for road construction.

[0006] The technical solution of this utility model is: a road marking cart for road construction, including a vehicle body, with movable wheels installed at the four corners of the bottom of the vehicle body, and a push handle installed on the rear side of the top of the vehicle body; it also includes a tilting frame, a telescopic device, and a mounting plate, wherein one side of the tilting frame is hinged to one side of the vehicle body, one end of the telescopic device is hinged to the top of the vehicle body, and the other end is hinged to the tilting frame; the mounting plate is horizontally installed on the rear side of the tilting frame, and a transverse sliding groove is provided on the mounting plate; at least one spraying component is installed in the sliding groove; The spraying assembly includes a spray nozzle and a column slidably connected to a chute. A slide block is slidably fitted on the column, with a base fixed at its lower end and a top block fixed at its upper end. A compression spring is fitted on the column. The upper and lower ends of the compression spring are respectively supported on the top block and the slide block. The slide block and the base are located on the upper and lower sides of the mounting plate, respectively. The spray nozzle is installed below the base.

[0007] Preferably, the spraying assembly further includes a slide rod that slides vertically through the top seat, column, and base, with its lower end connected to the spray nozzle; a set screw for tightening the slide rod is threaded onto one side of the top seat, and the set screw is perpendicular to the slide rod.

[0008] Preferably, it also includes a purging assembly, which includes an air distribution pipe and a fan installed on the top of the vehicle body. The fan outlet is connected to the air distribution pipe through an air supply pipe. The air distribution pipe is installed obliquely at the bottom of the tilting frame, and several forward-sloping air nozzles are evenly distributed at its bottom.

[0009] Preferably, a universal wheel lifting assembly is installed at the center of the rear of the vehicle body. The universal wheel lifting assembly includes a universal wheel, a worm gear mechanism, and a support frame. The universal wheel is located below the vehicle body, and its top is fixed with a vertically penetrating screw and two vertically sliding guide rods penetrating the vehicle body. The two guide rods are symmetrically arranged with the screw as the center. The worm gear mechanism is installed on the top of the vehicle body through the support frame. Its worm wheel is sleeved on the screw and threadedly connected to the screw. A handwheel is fixed to the outer end of its worm.

[0010] Preferably, the telescopic device is an electric push rod.

[0011] Compared with the prior art, this utility model has the following advantages: This device allows for quick adjustment of the nozzle's left and right position and height via the spraying assembly, making it easy to operate and improving work efficiency. After spraying, the telescopic mechanism allows the tilting frame to be flipped to a vertical position, making the marking cart easy to store. The universal wheel lifting assembly allows for height adjustment of the universal wheels. When the marking cart needs to travel in a straight line, simply turn the handwheel to suspend the universal wheels, preventing deviations in movement caused by the operator's force control. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a rear view of the present invention.

[0013] In the diagram: 1. Vehicle body, 2. Moving wheels, 3. Push handle, 4. Tilting frame, 5. Telescopic device, 6. Mounting plate, 601. Slide groove, 7. Column, 8. Top seat, 9. Compression spring, 10. Slide seat, 11. Base, 12. Slide rod, 13. Top screw, 14. Nozzle, 15. Air distribution pipe, 16. Air outlet, 17. Casters, 18. Screw, 19. Guide rod, 20. Worm gear mechanism, 21. Support frame, 22. Handwheel. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0015] Reference Figure 1-2 As shown, a road marking cart for road construction includes a vehicle body 1, with movable wheels 2 installed at the four corners of the bottom of the vehicle body 1, and a push handle 3 installed on the rear top of the vehicle body 1; the movable wheels 2 are fixed casters.

[0016] It also includes a tilting frame 4, a telescopic device 5, and a mounting plate 6. The tilting frame 4 is hinged to one side of the vehicle body 1. One end of the telescopic device 5 is hinged to the top of the vehicle body 1, and the other end is hinged to the tilting frame 4. The mounting plate 6 is horizontally mounted on the rear side of the tilting frame 4, and a transverse groove 601 is provided on the mounting plate 6. Three spraying components are installed in the groove 601. More specifically, in this embodiment, the telescopic device 5 is an electric push rod.

[0017] The spraying assembly includes a spray nozzle 14 and a column 7 slidably connected to a slide groove 601. A slide block 10 is slidably mounted on the column 7, with a base 11 fixed at its lower end and a top block 8 fixed at its upper end. A compression spring 9 is also mounted on the column 7. The upper and lower ends of the compression spring 9 are supported on the top block 8 and the slide block 10, respectively. The slide block 10 and the base 11 are located on the upper and lower sides of the mounting plate 6, respectively. The spray nozzle 14 is mounted below the base 11.

[0018] The spraying assembly also includes a slide bar 12, which slides vertically through the top seat 8, the column 7 and the base 11, and its lower end is connected to the spray head 14; a set screw 13 for tightening the slide bar 12 is threaded on one side of the top seat 8, and the set screw 13 is set perpendicular to the slide bar 12.

[0019] It also includes a purging assembly, which includes an air distribution pipe 15 and a fan installed on the top of the vehicle body 1. The fan outlet is connected to the air distribution pipe 15 through an air supply pipe. The air distribution pipe 15 is installed at an angle at the bottom of the tilting frame 4, and several forward-sloping air outlets 16 are evenly distributed at its bottom.

[0020] Initially, the tilting frame 4 is in a vertical position. Before spraying, the electric push rod is activated, and its output end extends to tilt the frame 4 to a horizontal position. Then, the left and right positions of each nozzle 14 are adjusted: after lifting the slide block 10, the column 7 is moved laterally along the slide groove 601. When the nozzle 14 reaches the designated position, the slide block 10 is released, so that the slide block 10 and the base 11 clamp the mounting plate 6, completing the adjustment of the left and right positions of the nozzle 14. Then, the height of each nozzle 14 is adjusted: the set screw 13 is loosened, and the height of the nozzle 14 is adjusted by moving the slide rod 12 up and down. After adjustment, the set screw 13 is tightened to complete the adjustment of the nozzle 14 height. During spraying, the vehicle body 1 is pushed forward and the fan is started. The air distribution pipe 15 and several air nozzles 16 continuously blow the road surface in front of the nozzle 14 to prevent dust and other debris from hindering the normal operation of the line marking work. After the painting is completed, start the electric push rod. Its output end retracts and drives the flipping frame 4 to flip back to the vertical position, so that the marking trolley can be stored on the transport vehicle. Example 2

[0021] As a preferred embodiment of this utility model, this embodiment adds a universal wheel 17 lifting assembly to the first embodiment, specifically as follows: A universal wheel 17 lifting assembly is installed at the center of the rear of the vehicle body 1. The universal wheel 17 lifting assembly includes a universal wheel 17, a worm gear mechanism 20, and a support frame 21. The universal wheel 17 is located below the vehicle body 1, and its top is fixed with a screw 18 that runs vertically through the vehicle body 1 and two guide rods 19 that slide vertically through the vehicle body 1. The two guide rods 19 are symmetrically arranged with the screw 18 as the center. The worm gear mechanism 20 is installed on the top of the vehicle body 1 through the support frame 21. Its worm gear is sleeved on the screw 18 and threadedly connected to the screw 18. A handwheel 22 is fixed to the outer end of its worm gear.

[0022] Under normal circumstances, the caster wheel 17 is on the ground, and the two rear movable wheels 2 are suspended in the air. When the marking cart needs to move in a straight line, turn the handwheel 22, which drives the screw 18 to move upward through the worm gear transmission, thereby driving the caster wheel 17 to move upward until the caster wheel 17 is suspended in the air. At this time, all four movable wheels 2 are on the ground. Pushing the marking cart forward in this state can prevent the marking cart from moving off course due to the force control of the construction personnel.

[0023] In summary, this device allows for quick adjustment of the left and right position and height of the spray nozzle 14 via the spraying assembly, making operation simple and improving work efficiency. After spraying, the tilting frame 4 can be tilted to a vertical position via the telescopic device 5, making the marking cart easy to store. The height of the casters 17 can be adjusted via the lifting assembly of the casters 17. When the marking cart needs to travel in a straight line, simply turn the handwheel 22 to suspend the casters 17, which can prevent the marking cart from moving due to the force control of the construction personnel.

[0024] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A road marking cart for road construction, comprising a cart body, with movable wheels installed at the four corners of the bottom of the cart body, and a push handle installed on the rear side of the top of the cart body; characterized in that: It also includes a tilting frame, a telescopic device, and a mounting plate. The tilting frame is hinged to one side of the vehicle body, and the telescopic device is hinged to the top of the vehicle body at one end and to the tilting frame at the other end. The mounting plate is horizontally mounted on the rear side of the tilting frame, and a transverse sliding groove is provided on the mounting plate. At least one painting component is installed in the sliding groove. The spraying assembly includes a spray nozzle and a column slidably connected to a chute. A slide block is slidably fitted on the column, with a base fixed at its lower end and a top block fixed at its upper end. A compression spring is fitted on the column. The upper and lower ends of the compression spring are respectively supported on the top block and the slide block. The slide block and the base are located on the upper and lower sides of the mounting plate, respectively. The spray nozzle is installed below the base.

2. The road construction marking cart according to claim 1, characterized in that: The spraying assembly also includes a slide rod that slides vertically through the top seat, column and base, with its lower end connected to the spray head; a set screw for tightening the slide rod is threaded on one side of the top seat, and the set screw is set perpendicular to the slide rod.

3. A road construction marking cart according to claim 1, characterized in that: It also includes a purging assembly, which includes an air distribution pipe and a fan installed on the top of the vehicle body. The fan outlet is connected to the air distribution pipe through an air supply pipe. The air distribution pipe is installed at an angle at the bottom of the tilting frame, and several forward-sloping air nozzles are evenly distributed at its bottom.

4. A road construction marking cart according to claim 1, characterized in that: A universal wheel lifting assembly is installed at the center of the rear of the vehicle body. The universal wheel lifting assembly includes a universal wheel, a worm gear mechanism, and a support frame. The universal wheel is located below the vehicle body, and its top is fixed with a vertically penetrating screw and two vertically sliding guide rods penetrating the vehicle body. The two guide rods are symmetrically arranged with the screw as the center. The worm gear mechanism is installed on the top of the vehicle body through the support frame. Its worm gear is sleeved on the screw and threadedly connected to the screw. A handwheel is fixed to the outer end of its worm gear.

5. A road construction marking cart according to claim 1, characterized in that: The telescopic device is an electric push rod.

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