A paint spraying marking device for building line laying
By using a spray-painting marking device to form a baseline with fixed stakes and a winding mechanism, and then spraying markings, the problems of poor straightness, low efficiency, and unclear markings in existing technologies are solved, achieving high-precision and high-efficiency line laying operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA HUADONG ENG CORP LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-21
AI Technical Summary
Existing construction line setting devices suffer from problems such as insufficient straightness, low work efficiency, and unclear markings during construction. In particular, the mortar spreading method is easily affected by wind and is unstable in operation.
The spray painting marking device uses a baseline formed by fixed stakes, a winding mechanism and a cable. The main body of the spray painting machine slides along the cable to mark the marks. A multi-stage gear transmission unit drives the winding drum to rotate, ensuring the cable tension and spraying the markings.
It improves the straightness of the layout and construction efficiency, the sprayed markings are clear and obvious, and have strong resistance to wind interference, significantly improving construction accuracy and efficiency.
Smart Images

Figure CN224531420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of marking devices for building engineering layout, and specifically to a spray-painted marking device for building layout. Background Technology
[0002] Setting out lines is essential for ensuring strict adherence to design drawings during construction. Generally, all building axes can be referred to as "major lines," while the corresponding "minor lines" are the edge lines and dimension lines of structural components. The basic principle of setting out lines is to accurately and proportionally mark the dimensions provided in the design drawings on the ground or corresponding construction base, thus providing a direct basis for subsequent structural construction. Whether the project can be constructed according to the dimensions designed in the drawings directly depends on the accuracy and correctness of the setting out lines. Marking devices are typically used during setting out lines.
[0003] Currently, line marking operations in construction typically rely on various marking devices for assistance in positioning. Existing marking methods are quite diverse, with a common method being to sprinkle lime at predetermined locations and use the lime's trail for line marking. However, these devices usually require manual operation, involving manually pushing the device across the ground to spread the lime and mark the lines.
[0004] Although this method can meet the basic requirements of line setting to a certain extent, it still has many shortcomings in actual construction: First, the straightness of the lines formed by ash is not high, and the accuracy of line setting is easily affected by unstable operation or path deviation; Second, the work efficiency is low, and manual operation is time-consuming and laborious; Third, the ash is easily blown away by the wind, resulting in unclear and unsustainable markings, which further affects the construction quality. Utility Model Content
[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a spray-painted marking device for construction layout. This invention aims to overcome the problems of insufficient straightness, low work efficiency, and unclear markings in existing marking devices during actual construction layout.
[0006] This utility model provides a spray painting marking device for building layout, including at least two fixed stakes, a winding mechanism, a cable, a spray painting machine body, and hanging ears;
[0007] The winding mechanism is mounted on one of the fixed posts. One end of the cable is wound around the winding mechanism, and the other end is connected to another fixed post. The hanging ear is fixed to the body of the paint sprayer, and the body of the paint sprayer is slidably connected to the cable through the hanging ear.
[0008] The winding mechanism includes a support base fixedly installed on the top of the fixed pile, a winding drum coaxially arranged outside the support base, a transmission rod rotatably connected to the support base, and a multi-stage gear transmission unit for driving the winding drum to rotate.
[0009] The multi-stage gear transmission unit includes multiple meshing gear assemblies. One end of each gear assembly is connected to a transmission rod located at the center of the support base, and the other end is connected to a winding drum.
[0010] In one embodiment, the gear assembly includes a driving gear, a driven gear, and a linkage gear. The transmission rod is rotatably connected to the center of the support base. The driving gear is coaxially fixed to the bottom of the transmission rod. The driven gear and the linkage gear are coaxially connected and meshed. The linkage gear meshes with a mating gear ring inside the winding drum.
[0011] In one embodiment, a ratchet is coaxially fixedly connected to the transmission rod, and a pawl is rotatably connected to the inner wall of the take-up drum, with the pawl and ratchet engaging.
[0012] In one embodiment, a torsion spring is connected between the pawl and the winding drum.
[0013] In one embodiment, a rocker arm is connected to the top end of the transmission rod, and a handle is connected to the other end of the rocker arm.
[0014] In one embodiment, the paint sprayer body is provided with at least two hanging ears.
[0015] In one embodiment, two rollers are rotatably connected to the lug, the two rollers are arranged vertically and vertically, and the cable is disposed between the two rollers.
[0016] In one embodiment, the inner wall of the winding drum and the outer wall of the support base are connected by a bearing, and the bearing is sleeved on the outer wall of the support base.
[0017] In one embodiment, the diameter of the driven gear is at least twice that of the driving gear.
[0018] The beneficial effects of the paint spraying marking device for building layout provided by this utility model are as follows:
[0019] This invention aims to overcome the problems of poor straightness, low work efficiency, and unclear markings in existing marking devices during construction layout. The device uses fixed stakes at predetermined locations for positioning, a winding mechanism to tighten a cable to form a baseline, and a spray gun that slides along the cable to spray markings onto the ground. This replaces the traditional method of spreading ash, resulting in clear, stable markings with strong resistance to wind interference. Compared to traditional manual moving devices, this device provides straighter and more accurate markings, significantly improving layout precision and construction efficiency. It is suitable for positioning axes and edges in building construction. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 A three-dimensional structural diagram of the spray painting marking device provided in this embodiment of the utility model;
[0022] Figure 2 A three-dimensional structural diagram of the paint sprayer body and the hanging ears provided for an embodiment of this utility model;
[0023] Figure 3 A three-dimensional structural schematic diagram of the winding mechanism provided in an embodiment of this utility model;
[0024] Figure 4 A cross-sectional structural schematic diagram of the winding mechanism provided in an embodiment of this utility model;
[0025] Figure 5 This is a schematic diagram of the internal structure of the winding mechanism provided in an embodiment of the present utility model;
[0026] Figure 6 A schematic diagram of the connection between the ratchet and the pawl provided in an embodiment of this utility model;
[0027] Figure 7 An exploded view of the winding mechanism provided in an embodiment of this utility model.
[0028] Reference numerals: 1. Fixed stake; 2. Rewinding mechanism; 21. Rewinding drum; 22. Support base; 23. Bearing; 24. Transmission rod; 25. Driving gear; 26. Driven gear; 27. Linkage gear; 28. Connecting gear ring; 29. Ratchet; 210. Pad; 211. Rocker arm; 212. Handle; 3. Cable; 4. Main body of the paint sprayer; 5. Hanging lug; 51. Roller. Detailed Implementation
[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present utility model. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present utility model.
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0031] like Figures 1 to 7 As shown, a spray-painted marking device for building layout includes at least two fixed stakes 1, a winding mechanism 2, a cable, a spray-painting machine body 4, and a hanging lug 5.
[0032] The winding mechanism 2 is mounted on one of the fixed posts 1. One end of the cable is wound around the winding mechanism 2, and the other end is connected to another fixed post 1. The hanging ear 5 is fixed to the body of the paint sprayer 4, and the body of the paint sprayer 4 is slidably connected to the cable through the hanging ear 5.
[0033] The winding mechanism 2 includes a support base 22 fixedly installed on the top of the fixed pile 1, a winding drum 21 coaxially arranged outside the support base 22, a transmission rod 24 rotatably connected to the support base 22, and a multi-stage gear transmission unit for driving the winding drum 21 to rotate.
[0034] The inner wall of the winding drum 21 is connected to the outer wall of the support base 22 by a bearing 23, which is sleeved on the outer wall of the support base 22.
[0035] The multi-stage gear transmission unit includes multiple meshing gear assemblies. One end of each gear assembly is connected to a transmission rod 24 located at the center of the support base 22, and the other end is connected to the winding drum 21. Specifically, the transmission rod 24 and the support base 22 can be rotatably connected by mounting bearings.
[0036] Existing marking devices typically create a trail by spreading lime at predetermined locations to complete the line marking operation. These devices are generally manually pushed and moved across the ground to spread the lime. While they achieve basic line marking functions, they suffer from problems such as poor straightness, susceptibility to deviations during operation, and low work efficiency. Furthermore, the spread lime is easily blown away by the wind, resulting in unclear markings that affect subsequent construction identification and positioning.
[0037] To address the aforementioned problems, this utility model provides a spray-painting marking device. The device includes fixed posts 1 positioned at predetermined locations on the ground, a winding mechanism 2 mounted on the fixed posts 1, and cables connecting adjacent fixed posts 1. The winding mechanism 2 tensions the cables, creating a taut reference straight line between the fixed posts 1. The spray-painting machine body 4 is slidably mounted on the cable via a hook 5 structure and moves along the cable to spray-paint markings on the ground. This solution is simple in structure, easy to operate, and enables high-straightness and high-efficiency line laying operations. Furthermore, the spray-painted markings are clearer and less prone to fading than lime, thus improving construction accuracy and efficiency.
[0038] The gear assembly includes a driving gear 25, a driven gear 26, and a linkage gear 27. The transmission rod 24 is rotatably connected to the center of the support base 22. The driving gear 25 is coaxially fixed to the bottom of the transmission rod 24. The driven gear 26 and the linkage gear 27 are coaxially connected. Specifically, a rotating rod is coaxially connected to the middle of the driven gear 26 and the linkage gear 27. The lower part of the rotating rod is rotatably connected to the fixed pile 1. The outside of the rotating rod can be rotatably connected to the fixed pile 1 by means of a bearing sleeve. The driving gear 25 and the driven gear 26 are meshed. The linkage gear 27 is meshed with the mating toothed ring 28 inside the winding drum 21.
[0039] The diameter of the driven gear 26 is at least twice that of the driving gear 25. In this embodiment, the torque of the transmission rod 24 is increased by using different gear ratios, thereby making it easier for the operator to rotate the transmission rod 24.
[0040] Specifically, in this embodiment, when using this utility model, firstly, two fixed stakes 1 are respectively inserted into the predetermined laying position on the ground, and the winding mechanism 2 is fixedly installed on one of the fixed stakes 1. Then, one end of the cable 3 is wound around the winding drum 21 of the winding mechanism 2, and the other end is connected to the other fixed stake 1, so as to form a cable with initial tension between the two stakes.
[0041] Next, the operator rotates the transmission rod 24 set on the winding mechanism 2, which drives the drive gear 25 at its bottom to rotate. The drive gear 25 meshes with the driven gear 26, and the driven gear 26 further drives the coaxial linkage gear 27 to rotate. The linkage gear 27 then meshes with the mating toothed ring 28 set inside the winding drum 21, thereby driving the winding drum 21 to rotate and tighten the cable 3, so that the cable is in a taut state.
[0042] After the cable is tensioned, the operator can push the main body 4 of the paint sprayer along the cable 3 to slide and perform painting marking operations along the line. The whole process is simple to operate, can achieve high-precision straight-line laying, and the painted markings are clear and obvious, which is suitable for the actual needs of building construction laying.
[0043] A ratchet 29 is coaxially fixedly connected to the transmission rod 24, and a pawl 210 is rotatably connected to the inner wall of the take-up drum 21. The pawl 210 and the ratchet 29 cooperate, and a torsion spring connects the pawl 210 and the take-up drum 21. In this embodiment, the ratchet 29 and the pawl 210 are used for limiting the movement to prevent the take-up drum 21 from reversing.
[0044] The top end of the transmission rod 24 is connected to a rocker arm 211, which has a Z-shaped structure. The other end of the rocker arm 211 is connected to a handle 212. By operating the rocker arm 211, the transmission rod 24 can be rotated quickly.
[0045] The main body 4 of the paint spraying machine is provided with at least two hanging ears 5.
[0046] Two rollers 51 are rotatably connected to the hanging ear 5. The two rollers 51 are arranged vertically and vertically, and the cable is located between the two rollers 51. The rollers enable the paint spraying machine body 4 to move quickly on the cable 3.
[0047] In this embodiment, the hanging ear 5 is set as a U-shaped plate, and the roller 51 is rotatably connected between the two vertical plates. Its bottom plate is fixedly connected to the top of the paint spraying machine body 4.
[0048] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the paint marking device for building layout according to this utility model, and can produce the positive effects described in this utility model.
[0049] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.
[0050] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A spray-painted marking device for architectural layout, characterized in that: This includes at least two fixed stakes, a winding mechanism, cables, the main body of the paint sprayer, and hanging lugs; The winding mechanism is mounted on one of the fixed posts. One end of the cable is wound around the winding mechanism, and the other end is connected to another fixed post. The hanging ear is fixed to the body of the paint sprayer, and the body of the paint sprayer is slidably connected to the cable through the hanging ear. The winding mechanism includes a support base fixedly installed on the top of the fixed pile, a winding drum coaxially arranged outside the support base, a transmission rod rotatably connected to the support base, and a multi-stage gear transmission unit for driving the winding drum to rotate. The multi-stage gear transmission unit includes multiple meshing gear assemblies. One end of each gear assembly is connected to a transmission rod located at the center of the support base, and the other end is connected to a winding drum.
2. The paint marking device for building layout according to claim 1, characterized in that: The gear assembly includes a driving gear, a driven gear, and a linkage gear. The transmission rod is rotatably connected to the center of the support base. The driving gear is coaxially fixed to the bottom of the transmission rod. The driven gear and the linkage gear are coaxially connected and meshed. The linkage gear meshes with the mating gear ring inside the winding drum.
3. The paint marking device for building layout according to claim 1, characterized in that: A ratchet is coaxially fixedly connected to the transmission rod, and a pawl is rotatably connected to the inner wall of the winding drum. The pawl and the ratchet cooperate with each other.
4. The paint marking device for building layout according to claim 3, characterized in that: A torsion spring connects the pawl to the winding drum.
5. The paint marking device for building layout according to claim 1, characterized in that: The top end of the transmission rod is connected to a rocker arm, and the other end of the rocker arm is connected to a handle.
6. The paint marking device for building layout according to claim 1, characterized in that: The main body of the paint spraying machine is equipped with at least two hanging ears.
7. The paint marking device for building layout according to any one of claims 1 or 6, characterized in that: The lug is rotatably connected to two rollers, which are arranged vertically and vertically, and the cable is located between the two rollers.
8. The paint marking device for building layout according to claim 1, characterized in that: The inner wall of the winding drum and the outer wall of the support base are connected by a bearing, which is sleeved on the outer wall of the support base.
9. The paint marking device for building layout according to claim 2, characterized in that: The diameter of the driven gear is at least twice that of the driving gear.