Fixed-point line drawing device and method for construction

Abstract

The fixed-point line drawing device comprises a vehicle body and a line releasing mechanism arranged on the vehicle body, the line releasing mechanism comprises a material containing box for containing lime powder for line drawing, a stirring device and a rotary conveying rod are arranged in the material containing box, the stirring device is located on the rotary conveying rod, one end of a line drawing channel is located in the material containing box, and the other end of the line drawing channel is located in the rotary conveying rod. The end, located outside the material containing box, of the line drawing channel is connected with a discharging pipe. One end of the rotary rod is connected with the driving end of the power device, and the other end extends into one end of the line drawing channel inside the material containing box; the power device drives the rotary conveying rod to rotate, the rotary conveying rod rotates to drive the stirring device to rotate synchronously, and the rotary conveying rod rotates to push lime powder into the line drawing channel; the automation degree of line drawing is increased, lime powder is stirred through the stirring device, it is prevented that the lime powder is caked to affect the uniformity of line drawing, the rotary conveying rod rotates at a constant speed, the lime powder flows out of the discharging pipe at the set speed, and the uniformity of line drawing is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of garden landscape construction equipment, and in particular to a line drawing device and method for garden landscape construction. Background Art

[0002] Lime marking is a traditional marking method in garden construction, usually used to mark boundaries, paths or other construction reference lines. The operation usually includes the following steps:

[0003] Determine the baseline: First, you need to determine the baseline based on the design drawings or actual on-site conditions. This usually involves using surveying tools such as total stations, theodolites, etc. to ensure the accuracy of the baseline.

[0004] Prepare lime: Mix quicklime with other materials (such as sand) to adjust the fluidity and adhesion of the lime so that it is easy to paint and not easily blown away by the wind.

[0005] Line drawing: Use tools such as a lime spoon or a special line drawing car to spread the prepared lime mixture into lines along the reference line. When drawing curves, you may need to use a tool with a fixed center and radius to ensure the accuracy of the curve.

[0006] Check and correct: After drawing the lines, you need to check whether the lines are clear and accurate, and correct deviations or broken lines in time.

[0007] Existing lime marking is usually achieved based on a lime spoon or a special marking vehicle. Traditional lime spoon marking is achieved manually, and the marking accuracy is not high. A special marking vehicle is used to spread the prepared lime mixture into lines along the reference line. During the marking process, the lime powder is prone to uneven thickness due to stress problems, resulting in line breakage problems in the later stage. Summary of the invention

[0008] The invention aims to provide a fixed-point marking device and method for construction, so as to solve the problem of how to make the lines drawn by lime marking unbroken and uniform in thickness on the basis of reducing labor.

[0009] To achieve the above objectives, the technical solution of the present invention is:

[0010] A fixed-point marking device for construction comprises a vehicle body and a line-releasing mechanism arranged on the vehicle body, the line-releasing mechanism comprises a material box for placing lime powder for marking lines, a stirring device and a rotating rod are arranged in the material box, the stirring device is located above the rotating rod, and the stirring device is in contact with the rotating rod, and the rotation of the rotating rod drives the stirring device to rotate, one end of a line drawing channel is located inside the material box, and the other end is located outside the material box, and the end of the line drawing channel located outside the material box is connected to a discharge pipe; one end of the rotating rod extends out of the material box and is connected to the driving end of a power device, and the other end of the rotating rod extends into the end of the line drawing channel located inside the material box; the power device drives the rotating rod to rotate, and the rotation of the rotating rod drives the stirring device to rotate synchronously, and the rotation of the rotating rod pushes the lime powder into the line drawing channel.

[0011] Furthermore, the stirring device includes a rotating disk, a transfer rod is located inside the material holding box, the transfer rod passes through a through hole on the rotating disk, and two ends of the transfer rod are connected to the inner walls of the front and back sides of the material holding box.

[0012] Furthermore, teeth are engraved on the edge of the rotating disk, and the teeth are distributed all over the edge of the rotating disk.

[0013] Furthermore, a stirring protrusion is provided on the side of the rotating disk, and when the rotating disk rotates along the transfer rod, the stirring protrusion stirs the lime powder contained in the material box.

[0014] Furthermore, the power device is a driving motor, which is installed on the vehicle body. One end of the rotating rod passes through the outer shell at the lower side of the material box and is connected to the driving shaft of the driving motor. When the driving motor rotates, it drives the rotating rod to rotate synchronously. The surface of the rotating rod is engraved with a thread, and the thread matches the teeth engraved on the edge of the rotating disk. The rotation of the rotating rod drives the rotating disk to rotate.

[0015] Furthermore, the line drawing channel is a cylindrical body with a hollow interior, one end of the line drawing channel is located inside the material box, and the other end is located outside the material box, one end of the rotary rod is connected to the driving shaft of the driving motor, and the other end of the rotary rod extends into the end of the line drawing channel located inside the material box, and the end of the line drawing channel located outside the material box is connected to the discharge pipe, the line drawing channel is arranged horizontally, the discharge pipe is connected to the line drawing channel, the discharge pipe is arranged vertically, and the discharge pipe is arranged perpendicular to the ground.

[0016] Furthermore, the vertical line discharge pipe is a cylindrical body with a hollow interior, and the top and bottom ends of the vertical line discharge pipe are both openings. A switch plug is arranged at the top opening of the vertical line discharge pipe, and the switch plug includes a top cover and an internal hollow vertical tube. The top cover of the switch plug is placed on the opening at the top of the vertical line discharge pipe, and the vertical tube of the switch plug is located in the vertical line discharge pipe. A notch is arranged on one side of the vertical tube, and the vertical tube is movably connected to the discharge pipe. When the notch faces one end of the drawing channel located inside the material holding box, the vertical tube is connected to the drawing channel.

[0017] Furthermore, a groove is respectively provided on the lower part of the side panels on the left and right sides of the material containing box, and the groove extends from the front side of the material containing box to the back side of the material containing box, and the end of the groove facing the front side of the material containing box is open, and the other end of the groove extends to the inner side surface of the back side of the material containing box, and the grooves on the left and right sides are used to receive the bottom plate.

[0018] Furthermore, a horizontal support plate is placed on the upper surface of the vehicle body, a protrusion is provided at the lower part of the left and right sides of the wire-releasing mechanism, a groove is provided on the surface of the support plate, and the protrusion extends into the groove on the surface of the support plate to install the wire-releasing mechanism on the support plate.

[0019] A method for performing fixed-point line drawing using the fixed-point line drawing device for construction, the method comprising:

[0020] The protective cover of the material box is opened, and the lime powder is poured into the material box. The driving motor is started, and the driving motor drives the rotary rod to rotate. When the rotary rod rotates, the threads engraved on the surface of the rotary rod rotate and squeeze the teeth of the rotating disk, thereby driving the rotating disk to rotate. When the rotating disk rotates, the stirring protrusions arranged on the side of the rotating disk stir the lime powder placed in the material box to prevent the lime powder from agglomerating.

[0021] When the operator moves the line-releasing mechanism to the corresponding position through the vehicle body, he rotates the switch plug connected to the end of the vertical line discharge pipe away from the ground, and points the notch of the switch plug toward the side of the line drawing channel; the rotation of the rotary rod drives the lime powder to move, and the rotation of the rotary rod can be converted into linear motion of the lime powder. The threads engraved on the surface of the rotary rod will transfer the lime powder to the line drawing channel when rotating, and through continuous rotation, the lime powder is continuously moved to the vertical line discharge pipe. The lime powder flows out from the end of the vertical line discharge pipe to complete the drawing of the lime powder, and because of the uniform rotation of the rotary rod, the lime powder flows out of the vertical line discharge pipe at a set rate, thereby ensuring the uniformity of the line drawing.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention as a whole avoids the labor intensity of manual line drawing by the prior art and increases the degree of automation through the effective combination of the vehicle body and the line-laying mechanism. The vehicle body can be applied to various road conditions when drawing lines in a garden landscape environment.

[0024] 2. The starting motor of the present invention drives the rotary rod to rotate. When the rotary rod rotates, the threads engraved on the surface of the rotary rod rotate and squeeze the teeth, thereby driving the stirring disk to rotate. When the stirring disk rotates, the stirring protrusions arranged on the side of the rotating disk stir the lime powder placed in the material box to prevent the lime powder from agglomerating, and prevent the lime powder from agglomerating and affecting the uniformity of the drawn lines.

[0025] 3. The rotation of the rotary rod of the present invention is converted into the linear motion of the lime powder. The threads engraved on the surface of the rotary rod will transfer the lime powder to the line drawing channel when rotating, and through continuous rotation, the lime powder will be continuously moved to the vertical line discharge pipe, thereby completing the line drawing of the lime powder. Moreover, due to the uniform rotation of the rotary rod, the lime powder flows out of the vertical line discharge pipe at a certain rate, thereby ensuring the uniformity of the line drawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a stereogram of the present invention.

[0027] Figure 2 It is a stereoscopic diagram of the wire-releasing mechanism of the present invention.

[0028] Figure 3 It is a cross-sectional view of the wire-releasing mechanism of the present invention.

[0029] Figure 4 This is a structural diagram of the stirring plate of the present invention.

[0030] Figure 5 This is a structural diagram of the stirring plate of the present invention.

[0031] Figure 6 It is a schematic diagram of the movable base plate of the present invention.

[0032] Figure 7 It is a structural diagram of the switch plug of the present invention.

[0033] Among them: vehicle body 1; driving motor 2; material box 3; lower part of side plate 3.1; transfer rod 4; discharge pipe 5; protective cover 6; rotating disk 7; through hole 7.1; rotary rod 8; switch plug 9; top cover 9.1; vertical tube 9.2; movable bottom support 10; notch 11; support plate 12; protrusion 13; rotating hole 14; drawing channel 15; stirring convex block 16; bottom support 17. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the invention clearer, the present invention is further described below with reference to the accompanying drawings.

[0035] A fixed-point line drawing device for garden landscape construction, such as Figure 1 As shown, it includes a vehicle body 1 and a line-releasing mechanism. The four corners of the bottom of the vehicle body 1 are provided with moving wheels, which are used to realize the movement of the fixed-point line-drawing device as a whole. The moving wheels are generally pneumatic wheels, so as to adapt to various road conditions in the garden landscape environment.

[0036] In some embodiments, the vehicle body 1 can be electrically driven, and the moving wheels can be driven to rotate under the action of electricity, thereby controlling the moving direction and speed of the vehicle body 1, thereby reducing the labor intensity of the operator;

[0037] In the present invention, the vehicle body 1 is manually pushed, and a push handle is provided on the side of the vehicle body 1 close to the operator. The vehicle body 1 can move forward under the push of the operator to complete the line drawing operation. A horizontal support plate 12 is placed on the upper surface of the vehicle body 1, and the support plate 12 is fixedly connected to the vehicle body 1. The support plate 12 serves as the middle support part between the vehicle body 1 and the line-releasing mechanism, and is used to realize that the line-releasing mechanism is firmly fixed on the vehicle body 1. A fixed protrusion 13 is respectively provided at the lower part of the left and right sides of the line-releasing mechanism, and the protrusion 13 can be a rectangular convex block. A groove is engraved on the surface of the support plate 12, and the protrusion 13 extends into the groove on the surface of the support plate 12. Through the cooperation of the protrusion 13 and the groove on the surface of the support plate 12, the line-releasing mechanism is fixedly placed on the support plate 12. A drive motor 2 is also placed on the support plate 12, and the drive motor 2 is located on the support plate 12, and is located on one side of the line-releasing mechanism, and is also located on the side of the line-releasing mechanism provided with the protrusion 13.

[0038] like Figure 2 and Figure 3 As shown, the line-releasing mechanism includes a material box 3, which is used to place lime powder for drawing lines; a protective cover 6 is provided on the top surface of the material box 3, and the protective cover 6 is buckled on the top of the material box 3 to prevent the lime powder placed in the material box 3 from being contaminated by rainwater or other pollutants. The protective cover 6 is in the shape of a rectangular parallelepiped with an opening at one end, and the opening of the rectangular parallelepiped is buckled on the top surface of the material box 3. The protective cover 6 can be manually covered on the top surface of the material box 3, or the protective cover 6 can be removed from the material box 3.

[0039] In the present application, a rotating hole 14 is provided on the side of the material box 3 close to the push handle, that is, a rotating hole 14 is provided on the front side of the material box 3, and a rotating hole 14 is also provided on the side of the material box 3 opposite to the rotating hole 14, that is, a rotating hole 14 is also provided on the back side of the material box.

[0040] The inside of the material box 3 is provided with a rotating disk 7. Figure 4 and Figure 5 As shown, a transfer rod 4 is arranged at the center of the rotating disk 7, and a through hole 7.1 is arranged in the center of the rotating disk 7. The transfer rod 4 passes through the through hole 7.1, so that the rotating disk 7 is sleeved on the transfer rod 4, and the two ends of the transfer rod 4 are respectively received by the rotation holes 14 on the front and back of the material box 3. The two ends of the transfer rod 4 are respectively connected to the rotation holes 14 on the front and back of the material box 3, so that the rotating disk 7 is mounted inside the material box 3, and the rotating disk 7 can rotate around the transfer rod 4.

[0041] It should be noted that, in the present application, teeth are engraved on the edge of the rotating disk 7 , and the teeth are distributed all over the edge of the rotating disk 7 .

[0042] In addition, stirring protrusions 16 are provided on the side of the rotating disk, and when the rotating disk rotates along the transfer rod 4, the stirring protrusions 16 stir the lime powder contained in the material box 3 to prevent the lime powder from agglomerating and affecting the uniformity of the drawn lines.

[0043] In the present invention, a rotary rod 8 is arranged at the lower side of the rotating disk, and the rotary rod 8 is located below the rotating disk 7. The surface of the rotary rod 8 is engraved with a thread, and the thread matches the teeth engraved on the edge of the rotating disk 7. The teeth on the edge of the rotating disk 7 contact the thread on the rotary rod 8. The rotating disk 7 and the rotary rod 8 are meshed and transmitted. When the rotary rod 8 rotates, the thread engraved on the surface of the rotary rod 8 rotates and squeezes the teeth on the rotating disk 7, thereby driving the rotating disk 7 to rotate. One end of the rotary rod 8 passes through the outer shell at the lower side of the material box 3 and is connected to the drive shaft of the drive motor 2. When the drive motor 2 rotates, it drives the rotary rod 8 to rotate synchronously. The end of the rotary rod 8 is located above the protrusion 13; a bearing is arranged at the position where the rotary rod 8 contacts the outer shell of the material box 3. The bearing is used to make the rotary rod 8 rotatably connected with the outer shell of the material box 3, so that the rotary rod 8 rotates under the drive of the drive motor 2.

[0044] In the present application, the material box 3 is also provided with a drawing channel 15, and the drawing channel 15 is connected to the inner cavity of the material box 3; one end of the rotating rod 8 is fixedly connected to the driving shaft of the driving motor 2, and the other end of the rotating rod 8 passes through the drawing channel 15. The drawing channel 15 is a hollow cylindrical body, which can be a hollow rectangular body or a hollow cylinder, preferably a hollow cylinder.

[0045] One end of the line drawing channel 15 is located inside the material holding box 3, and the other end is located outside the material holding box 3. One end of the rotary rod 8 is connected to the driving shaft of the driving motor 2, and the other end of the rotary rod 8 extends into the interior of one end of the line drawing channel 15, specifically, into the end of the line drawing channel 15 located inside the material holding box 3, and the end of the line drawing channel 15 located outside the material holding box 3 is connected to the vertical line discharge pipe 5. The line drawing channel 15 is arranged horizontally, and the vertical line discharge pipe 5 is arranged vertically. The vertical line discharge pipe 5 is arranged perpendicular to the ground, and the vertical line discharge pipe 5 is connected to the line drawing channel 15.

[0046] The vertical discharge pipe 5 is a columnar body with a hollow interior, and the columnar body can be a cylinder or a cuboid. The top and bottom ends of the vertical discharge pipe 5 are both open, and the top end of the vertical discharge pipe 5 is the end away from the ground. A switch plug 9 is set at the top opening of the vertical discharge pipe 5. Figure 7As shown, the switch plug 9 includes a top cover 9.1 and an internal hollow vertical tube 9.2. The top cover 9.1 of the switch plug 9 is placed on the opening at the top end of the vertical discharge pipe 5 to seal the opening at the top end of the vertical discharge pipe 5. The vertical tube 9.2 of the switch plug 9 is located in the vertical discharge pipe 5. The outer diameter of the vertical tube 9.2 of the switch plug 9 matches the inner diameter of the vertical discharge pipe 5, and a notch 11 is provided on one side of the switch plug 9. By holding the top cover 9.1 of the switch plug 9 and rotating the top cover 9.1, the vertical tube 9.2 of the switch plug 9 can be rotated in the vertical discharge pipe 5. When the switch plug 9 is rotated so that the notch 11 faces the end of the drawing channel 15 located inside the material holding box 3, the vertical tube 9.2 of the switch plug 9 is connected to the end of the drawing channel 15 located inside the material holding box 3. A mark such as an arrow may be provided on the surface of the top cover 9 . 1 . When the mark such as the arrow is pointing to the line drawing channel 15 , the notch 11 is connected to the line drawing channel 15 .

[0047] The remaining lime powder in the material box can be cleaned by opening the protective cover 6, but the protective cover 6 is located at a high position, so it is inconvenient to clean the remaining lime powder in this way. Figure 6 As shown, the bottom plate 10 of the material holding box 3 is configured as a movable and detachable bottom plate, specifically, a groove is respectively provided on the lower part 3.1 of the side plate on the left and right sides of the material holding box 3, and the groove extends from the front side of the material holding box to the back side of the material holding box, and the end of the groove facing the front side of the material holding box 3 is an opening, and the other end opposite to the groove extends to the inner side surface of the back side of the material holding box; the bottom plate 10 is a flat plate, and the left and right ends of the bottom plate 10 are respectively inserted into the openings of the grooves on both sides, and the bottom plate 10 is pushed from the front side of the material holding box to the back side of the material holding box, so that the left and right sides of the bottom plate 10 move in the grooves provided on the lower part 3.1 of the side plate on the left and right sides, specifically from the front side of the material holding box to the back side of the material holding box. , so that the left and right sides of the bottom plate 10 are each supported by one of the grooves. When the bottom plate 10 needs to be removed, the bottom plate 10 can be manually moved with a handheld tool to move the bottom plate 10 in the groove from the back of the material box to the front of the material box until the bottom plate 10 exits from the grooves on the lower parts 3.1 of the side panels on the left and right sides of the material box 3. Then, the bottom opening of the material box 3 is opened, and the remaining lime powder in the material box 3 can be cleaned and poured out. To ensure the sealing effect of the material box 3, the thickness of one end of the bottom plate 10 can be greater than the thickness of the other end. Specifically, when the bottom plate 10 is installed on the material box 3, the thickness of the end of the bottom plate 10 facing the front of the material box is greater than the thickness of the end of the bottom plate 10 facing the back of the raw material box.

[0048] As a preferred embodiment, in order to facilitate the cleaning of the remaining lime powder in the material box 3, a movable bottom bracket 17 can be provided, and the bottom bracket 17 can be conveniently installed on or removed from the material box 3. To facilitate the installation of the bottom bracket 17, as one embodiment, the lower part 3.1 of the side panels on the left and right sides of the material box 3 can be set to an L shape, and the L-shaped lower part 3.1 of the side panel includes a vertical plate and a horizontal plate. The L-shaped vertical plate is a part of the left side or right side of the material box, and the L-shaped horizontal plate is set toward the direction of the inside of the material box. A groove is set on the L-shaped horizontal plate, and the groove is used to accommodate the left and right sides of the bottom plate 10. The groove extends from the front of the material box to the back of the material box. The end of the groove facing the front of the material box 3 is open, and the other end of the groove opposite to the front of the material box extends to the inner side of the back of the material box. To facilitate the installation of the base support 17, the lower portion 3.1 of the side panel has a certain height. When installing the base support 17, first push the base support 17 from the front of the material containing box to the back of the material containing box, so that the left and right ends of the bottom surface of the base support 17 are located on the horizontal plates of the L-shaped lower portions 3.1 of the side panels on the left and right sides, and the base support 17 is supported by the horizontal plates of the L-shaped lower portions 3.1 of the side panels on the left and right sides, so that the base support 17 is located between the left and right side surfaces of the material containing box. At this time, the base support 17 can block the bottom opening of the material containing box, and then push the bottom plate 10 from the front of the material containing box to the back of the material containing box, so that the left and right sides of the bottom plate 10 are respectively moved in the grooves set on the horizontal plates of the left and right lower portions 3.1 of the side panels on the left and right sides, specifically from the front of the material containing box to the back of the material containing box, so that the left and right sides of the bottom plate 10 are each supported by one of the grooves. When the bottom plate 10 needs to be removed, the bottom plate 10 can be manually moved with a handheld tool to move the bottom plate 10 from the back of the material box to the front of the material box in the groove until the bottom plate 10 exits from the grooves on the lower side panels 3.1 on the left and right sides of the material box 3, and then the bottom drag 17 is manually moved with a handheld tool to move the bottom drag 17 along the horizontal plate of the lower side panel 3.1 from the back of the material box to the front of the material box until the bottom drag 17 is removed from the material box 3. The upper surface of the bottom support 17 is provided with a groove, and the groove on the bottom support 17 can be used to accommodate the remaining lime powder. When the bottom support 17 is removed from the material box, the remaining lime powder can be easily cleaned.

[0049] A method for marking lines at fixed points for garden landscape construction is implemented by means of the device for marking lines at fixed points for construction, and the method comprises the following steps:

[0050] The protective cover 6 of the material holding box 3 is opened, and a certain amount of lime powder is poured into the material holding box 3, and the driving motor 2 is started. The driving motor 2 drives the rotary rod 8 to rotate, and the teeth on the edge of the rotating disk 7 contact with the threads on the rotary rod 8. When the rotary rod 8 rotates, the threads engraved on the surface of the rotary rod 8 rotate and squeeze the teeth, thereby driving the rotating disk 7 to rotate. When the rotating disk 7 rotates, the stirring protrusions arranged on the side of the rotating disk stir the lime powder placed in the material holding box 3 to prevent the lime powder from agglomerating.

[0051] When the operator moves the line-releasing mechanism to the corresponding position through the vehicle body 1, the operator rotates the switch plug 9 connected to the end of the vertical line discharge pipe 5 away from the ground, and the notch 11 of the switch plug 9 is toward the side of the line drawing channel 15; the rotation of the rotary rod 8 drives the lime powder to move, and the rotation of the rotary rod 8 can be converted into a linear motion of the lime powder. The threads engraved on the surface of the rotary rod 8 will transfer the lime powder to the line drawing channel 15 when rotating, and through continuous rotation, the lime powder is continuously moved toward the vertical line discharge pipe 5, and the lime powder flows out from the end of the vertical line discharge pipe 5 to complete the drawing of the lime powder. Moreover, due to the uniform rotation of the rotary rod 8, the lime powder flows out of the vertical line discharge pipe 5 at a certain rate, thereby ensuring the uniformity of the line drawing.

[0052] Finally, it should be noted that the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. The above description is only the preferred embodiment of the present invention and is not used to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions recorded in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, 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 fixed-point marking device for construction, comprising a vehicle body (1), a line-releasing mechanism arranged on the vehicle body (1), the line-releasing mechanism comprising a material box (3) for placing lime powder for marking, characterized in that: A stirring device and a rotating rod (8) are arranged inside the material holding box (3), the stirring device is located above the rotating rod (8) and the stirring device is in contact with the rotating rod (8), and the rotating rod (8) rotates to drive the stirring device to rotate; one end of the line drawing channel (15) is located inside the material holding box (3), and the other end is located outside the material holding box (3), and the end of the line drawing channel (15) located outside the material holding box (3) is connected to the discharge pipe (5); one end of the rotating rod (8) extends out of the material holding box (3) and is connected to the power device located outside the material holding box (3), and the other end extends into the end of the line drawing channel (15) located inside the material holding box (3); the power device drives the rotating rod (8) to rotate, and the rotating rod (8) rotates to push the lime powder into the line drawing channel (15).

2. A construction fixed-point marking device according to claim 1, characterized in that: The stirring device comprises a rotating disk (7), a transfer rod (4) located inside the material containing box (3), the transfer rod (4) passing through a through hole (7.1) on the rotating disk (7), and two ends of the transfer rod (4) connected to the inner walls of the front and back sides of the material containing box.

3. A construction fixed-point marking device according to claim 2, characterized in that: The edge of the rotating disk (7) is engraved with teeth, and the teeth are distributed all over the edge side of the rotating disk (7).

4. A construction fixed-point marking device according to claim 2, characterized in that: A stirring protrusion (16) is provided on the side of the rotating disk. When the rotating disk (7) rotates along the transfer rod (4), the stirring protrusion (16) stirs the lime powder contained in the material box (3).

5. The device for marking lines at fixed points for construction according to claim 1, characterized in that: The power device is a driving motor (2), which is mounted on the vehicle body (1). One end of a rotary rod (8) passes through a housing at the lower side of the material holding box (3) and is connected to a driving shaft of the driving motor (2). When the driving motor (2) rotates, the rotary rod (8) is driven to rotate synchronously. A thread is engraved on the surface of the rotary rod (8), and the thread matches the teeth engraved on the edge of the rotating disk (7). The rotary rod (8) rotates to drive the rotating disk (7) to rotate.

6. A construction fixed-point marking device according to claim 1, characterized in that: The line drawing channel (15) is a columnar body with a hollow interior. One end of the line drawing channel (15) is located inside the material holding box (3), and the other end is located outside the material holding box (3). One end of the rotary rod (8) is connected to the driving shaft of the driving motor (2), and the other end of the rotary rod (8) extends into the end of the line drawing channel (15) located inside the material holding box (3). The end of the line drawing channel (15) located outside the material holding box (3) is connected to the discharge pipe (5). The line drawing channel (15) is arranged horizontally, the discharge pipe (5) is connected to the line drawing channel (15), and the discharge pipe (5) is arranged vertically. The discharge pipe (5) is arranged perpendicular to the ground.

7. A construction fixed-point marking device according to claim 6, characterized in that: The vertical discharge pipe (5) is a columnar body with a hollow interior. The top and bottom ends of the vertical discharge pipe (5) are both open. A switch plug (9) is arranged at the top opening of the vertical discharge pipe (5). The switch plug (9) comprises a top cover (9.1) and an internally hollow vertical pipe (9.2). The top cover (9.1) of the switch plug (9) is placed on the top opening of the vertical discharge pipe (5). The vertical pipe (9.2) of the switch plug (9) is located in the discharge pipe (5). A notch (11) is arranged on one side of the vertical pipe (9.2). The vertical pipe (9.2) is movably connected to the discharge pipe (5). When the notch (11) faces one end of the line drawing channel (15) located inside the material holding box (3), the vertical pipe (9.2) is connected to the line drawing channel (15).

8. The device for marking lines at fixed points for construction according to claim 1, characterized in that: A groove is respectively provided on the lower part (3.1) of the side panels on the left and right sides of the material holding box (3), and the groove extends from the front side of the material holding box to the back side of the material holding box. One end of the groove facing the front side of the material holding box (3) is open, and the other end of the groove opposite to the front side of the material holding box extends to the inner side surface of the back side of the material holding box. The grooves on the left and right sides are used to receive the bottom plate (10).

9. A fixed-point marking device for construction according to claim 1, characterized in that: A horizontal support plate (12) is placed on the upper surface of the vehicle body (1), a protrusion (13) is respectively provided at the lower part of the left and right sides of the wire-releasing mechanism, a groove is provided on the surface of the support plate (12), and the protrusion (13) extends into the groove on the surface of the support plate (12) to install the wire-releasing mechanism on the support plate (12).

10. A method for performing fixed-point line drawing using the fixed-point line drawing device for construction according to any one of claims 1 to 9, the method comprising: The protective cover (6) of the material holding box (3) is opened, lime powder is poured into the material holding box (3), and the driving motor (2) is started. The driving motor (2) drives the rotary rod (8) to rotate. The rotary rod (8) drives the rotating disk (7) to rotate. When the rotating disk (7) rotates, the stirring protrusions arranged on the side of the rotating disk stir the lime powder placed in the material holding box (3); After the operator moves the vehicle body (1) to move the line-releasing mechanism to a preset line-drawing position, the operator rotates the switch plug (9) to direct the notch (11) of the switch plug (9) toward one side of the line-drawing channel (15); the rotating rod (8) rotates to drive the lime powder to move, and the rotating rod (8) rotates to transfer the lime powder into the line-drawing channel (15). Through the continuous rotation of the rotating rod (8), the lime powder is continuously moved toward the vertical line discharge pipe (5), and the lime powder flows out from the end of the vertical line discharge pipe (5) to complete the lime powder line drawing.

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