Image control spot line spraying trolley

Abstract

The utility model discloses an image control spot line spraying trolley which comprises a walking mechanism, the walking mechanism can carry an automatic paint spraying tank to walk, lines are drawn on the ground through the automatic paint spraying tank in the walking process, a distance measuring device is arranged in the walking mechanism, and specifically, the moving distance of the walking mechanism is obtained by detecting the rolling distance of a rolling wheel through a Hall sensor. Therefore, the line length of the line drawing trolley during spraying and line drawing can be accurately monitored.

Description

Technical Field

[0001] The utility model relates to the field of surveying and mapping construction, in particular to a line drawing device for spraying marking lines on ground image control points. Background Art

[0002] The point-controlled spray line trolley refers to a device that can carry a spray paint device and travel on the road surface to spray paint and draw lines on the road surface. Traditional manual line drawing is labor-intensive and inefficient, while the spray line trolley can greatly improve the line drawing efficiency. The dedicated spray line trolley comes with a spraying device and has a high production cost. There is currently a spray line trolley with a self-spraying paint can, such as the Chinese utility model patent with announcement number CN208328644U. By installing a self-spraying paint can, it can draw lines on the road surface, eliminating the cost of installing a spraying device on the walking mechanism, with a simple structure and low cost.

[0003] However, the existing image control point spraying car needs to draw guide lines on the road surface in advance for spraying. The purpose of drawing the guide lines is to guide the car to walk along the specified route and to limit the length of the spraying line. Utility Model Content

[0004] In order to provide a spray line trolley that can accurately grasp the length of the spray line without the need for a guide line, the technical solution adopted by the utility model is:

[0005] A kind of image control point spray line trolley,

[0006] It includes: a walking mechanism, which is equipped with rollers rolling on the ground and a walking push rod for an operator to push;

[0007] The walking mechanism is provided with a mounting seat for mounting the self-spray paint can, and a lever hingedly arranged on the walking mechanism capable of squeezing the self-spray paint can to enable the self-spray paint can to spray paint;

[0008] The push rod is provided with a handle capable of driving the lever to move;

[0009] The walking mechanism is also provided with a distance measuring device capable of detecting the moving distance of the walking mechanism;

[0010] The distance measuring device comprises a Hall sensor for detecting the number of rotations of the roller, a processor for processing the Hall sensor signal, and a display unit for receiving data from the processor to display the moving distance of the walking mechanism.

[0011] The distance measuring device also includes a switch unit, which is arranged at the handle and can be triggered when the handle drives the lever to move. After the switch unit is triggered, the distance measuring device detects the moving distance of the walking mechanism.

[0012] The above-mentioned image-controlled point spraying trolley carries out line drawing by carrying a self-spray paint can. Since the line spraying trolley is equipped with a distance measuring device, the distance measuring device can accurately grasp the length of the drawn line in real time, so there is no need to use ground marking points for length calibration. The operation is convenient and fast, and the length of the drawn line can be accurately grasped. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the image control point spray line trolley;

[0014] Figure 2 A schematic diagram of the image-controlled point spray line trolley with a self-spray paint can installed;

[0015] Figure 3 This is the circuit schematic diagram of the distance measuring device. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] like Figure 1 The image-controlled point spraying trolley shown includes a frame 1-1, on which a roller 1 is arranged, and on which a push rod 2 is also arranged. The frame 1-1, the roller 1 and the push rod 2 together constitute a walking mechanism.

[0018] The operator uses the push rod 2 to make the roller roll on the ground so as to make the walking mechanism walk on the ground.

[0019] A mounting seat 3 is provided in the above-mentioned walking mechanism. Specifically, in this embodiment, the mounting seat 3 is provided on the push rod 2. Figure 2 The mounting seat 3 shown is used to mount the self-spray paint can A. The mounting seat 3 includes a clamping portion 3-1 for clamping the self-spray paint can A and a limiting portion 3-2 for limiting the end of the self-spray paint can. The end of the self-spray paint can is mounted on the mounting seat 3 with the end facing downward, and the outer wall of the can body is limited by the clamping portion to prevent shaking and falling off. The end of the can body is supported by the limiting portion, and a through hole for the nozzle of the self-spray paint can to pass through is provided on the limiting portion 3-2. The nozzle of the self-spray paint can passes through the through hole. When the tail of the self-spray paint can is squeezed, the nozzle at the end is pressurized to open the nozzle for spraying. Therefore, in order to achieve the squeezing of the tail of the self-spray paint can, a lever 4 is hinged on the push rod 2, one end of the lever 4 is above the tail of the self-spray paint can, and the other end is connected to a handle 5 arranged on the push rod 2 through a gate line 5-1. When the handle 5 is pinched, the gate line 5-1 can drive the lever 4 to swing around the hinge, so that the end of the lever 4 above the tail of the self-spray paint can squeezes the self-spray paint can, thereby causing the self-spray paint can to spray paint.

[0020] When drawing a line, pinch the handle to make the spray paint can start spraying paint, and then push the walking mechanism to carry the spray paint can forward through the push rod 2, so as to spray the line on the ground.

[0021] In order to accurately grasp the length of the line spraying without the need for a reference line drawn on the ground in advance, a distance measuring device is also provided on the spray line trolley to detect the distance traveled by the walking mechanism. The circuit principle of the distance measuring device is as follows: Figure 2 The figure shows that it includes a Hall sensor 6, which detects the rotation angle of one of the rollers 1. According to the detection principle of the Hall sensor 6, it is necessary to arrange a corresponding magnetic element 6-1 on the roller 1. When the roller 1 rotates, when the magnetic element 6-1 passes through the Hall sensor 6, the Hall sensor 6 generates a pulse signal, which is converted into a distance after being processed and calculated by the processor 7, and then the corresponding data is displayed through the display unit 8, so that the distance traveled by the walking mechanism can be intuitively seen. In this embodiment, the display unit 8 is specifically arranged on the push rod 2, and the Hall sensor 6 is arranged on the frame 1-1 facing one of the rollers 1. In order to improve the accuracy, a group of magnetic elements are evenly distributed on the circumference of the roller 1. When the roller 1 rolls, each magnetic element can generate a pulse signal when it passes through the Hall sensor 6 once. The more magnetic elements there are, the more accurate the distance obtained is, and the specific accuracy is related to the angle of uniform distribution of the magnetic elements.

[0022] Since in actual use only the distance during the spraying process needs to be detected, and the driving distance does not need to be detected when spraying is not in progress, a switch unit 9 can be set to connect with the processor 7. When the switch unit 9 sends a signal to the processor 7, data collection and processing are performed. The switch unit 9 is set at the handle 5. When the handle 5 is pinched, the switch unit 9 will be triggered. At this time, the spray can A starts spraying at the same time, so that the distance of the spray line can be detected.

Claims

1. A dolly for spraying lines with image control points, include: A walking mechanism, the walking mechanism being provided with a roller (1) rolling on the ground and a walking push rod (2) for an operator to push; Features: The walking mechanism is provided with a mounting seat (3) for mounting a self-spraying paint can, and a lever (4) hingedly arranged on the walking mechanism and capable of squeezing the self-spraying paint can to enable the self-spraying paint can to spray paint; The push rod (2) is provided with a handle (5) capable of driving the lever (4) to move; The walking mechanism is also provided with a distance measuring device capable of detecting the moving distance of the walking mechanism; The distance measuring device comprises a Hall sensor (6) for detecting the number of rotations of the roller (1), a processor (7) for processing the signal of the Hall sensor (6), and a display unit (8) for receiving data from the processor (7) to display the moving distance of the walking mechanism.

2. The image-controlled point spraying trolley according to claim 1, characterized in that: The distance measuring device further comprises a switch unit (9), which is arranged at the handle (5) and can be triggered when the handle (5) drives the lever (4) to move, and after the switch unit (9) is triggered, the distance measuring device detects the moving distance of the walking mechanism.

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