A marking device for building surveying

Abstract

The utility model discloses a kind of marking devices for building surveying and mapping, relate to building mapping technical field.The marking device includes bottom plate seat, the top of the bottom plate seat is slidably provided with pivot seat, pivot seat is rotatably cooperated with net cylinder, the periphery of the net cylinder is evenly provided with several arc-shaped protruding teeth two, the protruding tooth one that is formed with mobile interference is provided on the bottom plate seat with protruding teeth two, the driving mechanism for driving the net cylinder rotation is also provided on the bottom plate seat, walking wheel and handle for facilitating the movement of the bottom plate seat are also provided on the bottom plate seat;The outside of the net cylinder is provided with sealing cover for sealing the net cylinder, sealing cover and bottom plate seat are jointly provided with discharge port.Effective to avoid the problem of raw material waste caused by white powder pouring type discharge, while avoiding the problem of excessive amount of white powder marking to appear diffusion situation and cause the problem of marking precision decline.

Description

Technical Field

[0001] This utility model relates to the field of architectural surveying technology, specifically a marking device for architectural surveying. Background Technology

[0002] Marking lines on the building floor with white powder serves to transform the two-dimensional information from the design drawings into a three-dimensional reference that can be executed on site. This provides workers with a clear basis for construction and ensures the accuracy of the construction. Specifically, it can be broken down into the following four points: 1. Implement "blueprints to reality" and clearly define construction boundaries. The dimensions and locations on the design drawings (such as wall axes, column positions, and equipment foundation areas) are abstract, but white chalk lines can reproduce this information on the ground in a 1:1 ratio. For example, by marking lines to determine the direction of load-bearing walls and the location of door and window openings, workers do not need to repeatedly refer to the drawings to make guesses. They can directly use the lines as a reference to carry out masonry, pouring, and other operations, avoiding construction misalignment caused by misunderstandings.

[0003] 2. Standardize construction standards to ensure accuracy and compliance. Construction demands extremely high dimensional accuracy (such as controlling wall verticality and room width / depth errors to the millimeter level), and white chalk lines serve as a unified "benchmark" on-site. For example, before pouring floor slabs, lines are drawn to determine the range and spacing of rebar tying; when laying floor tiles, lines are used as boundaries to ensure neat layout, ensuring that the final construction results meet design specifications and reducing rework later (such as wall misalignment and floor paving misalignment).

[0004] 3. Improve construction efficiency and reduce coordination interference. When multiple workers are collaborating on a project (such as electricians, bricklayers, and carpenters working together), white lines can clearly define the work areas and order of each trade. For example, the pre-embedded paths of electrical and plumbing lines can be marked first to avoid damaging the lines when building walls later; or the construction priority of different areas can be marked to allow workers to clearly divide their tasks, reduce waiting or process conflicts caused by unclear areas, and improve the overall construction progress.

[0005] 4. Facilitates process inspection and allows for proactive problem avoidance. During construction, supervisors or technicians can quickly check the construction quality using white chalk lines. For example, they can check whether the masonry walls are aligned with the marked lines by comparing them with the dimensions on the drawings, and whether the pouring range of the equipment foundation exceeds the marked lines. This allows them to promptly identify problems such as "misalignment" and "excessive width" and rectify them before the process is completed, avoiding cost waste and delays caused by demolition and alteration after completion.

[0006] Chinese patent number 211524139U discloses a "white powder line spraying machine for building surveying and mapping," which solves the problems of hand injury from manual handling of white powder for building line marking, and the laborious and inefficient use of shovels. The machine includes a base plate with four movable wheels installed at the lower corners. Through the arrangement of the base plate, movable wheels, push rod, material cylinder, baffle, arc plate, connecting rod, connecting seat, actuating rod, and guide hopper, the push rod is pushed to move under the action of the movable wheels. At the same time, the actuating rod is turned, causing the connecting rod to swing up and down in a fan shape around the connecting seat. In turn, the connecting rod pulls the arc block to drive the baffle to swing in a fan shape, thereby controlling the opening and closing of the discharge port, allowing the white powder to fall into the guide hopper and then slide out to mark the lines on the ground.

[0007] While the aforementioned patented technology addresses the issues of "manually grasping construction white powder for marking lines, which can easily damage hands, and the use of shovels, which is laborious and inefficient," its discharge port is a large, monolithic opening. This can easily cause the white powder to spill out in a cascading manner, resulting in excessive discharge volume, waste of raw materials, and increased marking costs. Furthermore, excessive marking white powder is easily affected by external factors later on, leading to diffusion (such as being run over by vehicles during the transport of building materials), which affects the accuracy of marking. Utility Model Content

[0008] The purpose of this invention is to provide a marking device for building surveying and mapping to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a marking device for architectural surveying and mapping, comprising a base plate, a rotating shaft seat slidably disposed on the top of the base plate, a mesh cylinder rotatably fitted on the rotating shaft seat, a plurality of arc-shaped protruding teeth II evenly disposed around the mesh cylinder, a protruding tooth I disposed on the base plate that forms movement interference with the protruding teeth II, a driving mechanism for driving the mesh cylinder to rotate disposed on the base plate, and a traveling wheel and a handle for facilitating the movement of the base plate; The outer side of the mesh cylinder is provided with a sealing cover for sealing the mesh cylinder, and the sealing cover and the base plate are provided with a discharge port.

[0010] Preferably, the top left and right sides of the base plate are respectively provided with upwardly extending support seats, and the rotating shaft seat is made of two and is slidably disposed on the two support seats respectively.

[0011] Preferably, the left and right sides of the mesh cylinder are respectively provided with rotating shafts arranged coaxially with the mesh cylinder, and the rotating shafts on the left and right sides of the mesh cylinder are rotatably connected with the corresponding rotating shaft seats.

[0012] Preferably, the mesh cylinder is supported by a cylindrical frame, which consists of two symmetrically arranged circular rings connected by several connecting rods.

[0013] Preferably, the two openings of the mesh cylinder are sealed by sealing caps, which are fixed on two corresponding rings inside the cylinder frame.

[0014] Preferably, the driving mechanism is a drive motor mounted on the base plate, and the drive motor is connected to the mesh cylinder via a spring coupling.

[0015] Preferably, the sealing cover has a plurality of feeding ports evenly arranged along its circumference, and the sealing cover is also provided with a material inlet cover for sealing the feeding ports.

[0016] Preferably, the discharge port includes a discharge port one located at the bottom of the sealing cover, and a discharge port two located on the base plate that corresponds vertically to the discharge port one.

[0017] Preferably, the bottom of the base plate is further provided with a sealing plate for sealing the discharge port, and the sealing plate is slidably disposed on the bottom surface of the base plate.

[0018] Preferably, the base plate is provided with a push rod extending rearward and upward, and the handle is fixed to the top of the push rod.

[0019] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting a rotatable screen cylinder on the base plate, and setting two protruding teeth around the screen cylinder to form a moving interference with the protruding teeth on the base plate, causes vibration through interference as the screen cylinder rotates, thereby realizing the discharge of white powder. The white powder is shaken out of the screen cylinder by vibration. The amount of white powder discharged can be further controlled by controlling the rotation speed of the screen cylinder, which effectively avoids the problem of raw material waste caused by the pouring discharge of white powder, and at the same time avoids the problem of excessive white powder marking diffusion, which leads to a decrease in marking accuracy.

[0020] 2. This utility model and device are also equipped with wheels and handles, facilitating flexible movement on the construction site and improving construction efficiency. The drive mechanism uses a drive motor, which is connected to the mesh cylinder through a spring coupling, making the rotation of the mesh cylinder more stable and reliable.

[0021] 3. The present invention features multiple feeding ports and a material inlet cover on the sealing cover, which facilitates the addition and sealing of white powder and improves the ease of use of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a partial structural diagram of the present invention. Figure 1 (Hidden handle); Figure 4 This is a partial structural diagram of the present invention. Figure 2 (Hidden handles and sealing covers); Figure 5 This utility model Figure 4 Side view; Figure 6 This utility model Figure 3 Side view; Figure 7 This is a diagram showing the arrangement of the discharge port of this utility model; Figure 8 This is a diagram illustrating the arrangement of the sealing plate of this utility model. Figure 9 This is a structural diagram of the cylindrical frame of this utility model.

[0023] In the picture: 1-Base plate, 11-Support base, 12-Spindle base, 121-Sliding base, 13-Universal wheel, 14-Push rod, 15-Handle, 16-Motor base, 17-Protruding tooth one, 18-Tension spring, 19-Discharge port two 21-Mesh cylinder, 211-Cylinder frame, 212-Second convex tooth, 22-Sealing cover, 23-Feeding port, 24-Feeding port cover, 25-Rotating shaft, 31-Drive motor, 32-Spring coupling 41-Linear guide rail, 42-Slider, 5-Sealing cover, 51-Allowance opening, 52-Discharge port one, 6-Sealing plate, 61-Sliding connecting seat. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0026] like Figures 1 to 8As shown, a marking device for architectural surveying includes a base plate 1. A rotating shaft seat 12 is slidably mounted on the top of the base plate 1. A mesh cylinder 21 is rotatably fitted on the rotating shaft seat 12. Several arc-shaped protrusions 212 are evenly arranged around the mesh cylinder 21. A protrusion 17, which forms a movement interference with the protrusions 212, is provided on the base plate 1. The protrusion 17 is also arc-shaped. The base plate 1 is also provided with a driving mechanism for driving the mesh cylinder 21 to rotate. The base plate 1 is also provided with a traveling wheel and a handle 15 to facilitate the movement of the base plate 1.

[0027] The outer side of the mesh cylinder 21 is provided with a sealing cover 5 for sealing the mesh cylinder 21, and the sealing cover 5 and the base plate 1 are provided with a discharge port.

[0028] In one specific embodiment, the top left and right sides of the base plate 1 are respectively provided with upwardly extending support seats 11, and two pivot seats 12 are respectively slidably disposed on the two support seats 11. Specifically, the support seat 11 is provided with a vertically extending linear guide rail 41, a slider 42 is slidably engaged on the linear guide rail 41, a sliding seat 121 is fixed on the slider 42, and the pivot seat 12 is fixed on the corresponding sliding seat 121.

[0029] Specifically, in this embodiment, the left and right sides of the mesh cylinder 21 are respectively provided with rotating shafts 25 arranged coaxially with the mesh cylinder 21, and the rotating shafts 25 on the left and right sides of the mesh cylinder 21 are rotatably connected to the corresponding rotating shaft seats 12.

[0030] Specifically in this embodiment, such as Figure 9 As shown, the net cylinder 21 is supported by the cylindrical frame 211 to maintain its cylindrical structure. The cylindrical frame 211 consists of two symmetrically arranged rings. The two rings are connected by several connecting rods (not shown in the figure). The connecting rods are evenly arranged on the circumference of the rings. The net cylinder 21 is sleeved on the outside of the several connecting rods. The openings at both ends of the net cylinder 21 are fixedly connected to two corresponding rings.

[0031] Specifically, in this embodiment, the two openings of the mesh cylinder 21 are sealed by sealing caps 22, which are fixed to two corresponding rings inside the cylinder frame 211. The rotating shaft 25 is respectively located on the outside of the two sealing caps 22 (with the opposite side of the two sealing caps 22 as the outside).

[0032] Specifically, in this embodiment, the second protrusion 212 is disposed on the circumferential direction of the two corresponding rings inside the cylindrical frame 211.

[0033] In one specific embodiment, the driving mechanism is a drive motor 31 mounted on the base plate 1, and the drive motor 31 is connected to the mesh cylinder 21 via a spring coupling 32.

[0034] Specifically, a motor mount 16 is provided on the support base 11 on one side, and the drive motor 31 is fixed to the motor mount 16.

[0035] Specifically, in this embodiment, a plurality of feeding ports 23 are evenly arranged on the corresponding sealing cover 22 on the side away from the drive motor 31 along its circumference. The sealing cover 22 is also provided with a material port cover 24 for sealing the feeding ports 23. The sealing cover 5 is also provided with an opening 51 for exposing the feeding ports 23, so that the material port cover 24 can be opened directly outside the sealing cover 5 and the white powder raw material for marking can be added into the mesh cylinder 21 through the feeding ports 23. The material port cover 24 is fastened to the feeding ports 23 so that the material port cover 24 can be opened or closed quickly.

[0036] In this embodiment, an energy storage device, such as a battery, is also included for supplying power to the drive motor 31. A switch controller for controlling the start and stop of the drive motor 31 is provided on the handle 15. The battery and the switch controller are electrically connected to the drive motor 31. Of course, the electrical circuit of the drive motor 31 also includes common circuit components such as circuit protectors. The aforementioned battery, switch controller, circuit protector, etc. are all existing conventional technologies, and the specific configuration method will not be described in detail here.

[0037] Specifically, in this embodiment, the discharge port includes a discharge port 52 located at the bottom of the sealing cover 5, and a discharge port 19 located on the base plate 1 and corresponding vertically to the discharge port 5. The white powder falling from the mesh cylinder 21 is scattered onto the ground through the discharge port 52 and the discharge port 19.

[0038] Furthermore, a sealing plate 6 for sealing the discharge port is also provided at the bottom of the base plate 1. The sealing plate 6 is slidably disposed on the bottom surface of the base plate 1. Specifically, sliding connecting seats 61 are provided on the bottom surface of the base plate 1 on both sides of the discharge port 19. One end of the sliding connecting seat 61 is fixed to the base plate 1, and a gap is provided between the other end of the sliding connecting seat 61 and the base plate 1. The sealing plate 6 is slidably disposed within the gap between the sliding connecting seat 61 and the base plate 1. After the marking is completed, the discharge port is blocked by the sealing plate 6 to prevent white powder from falling onto the ground where marking is not required.

[0039] Specifically, the base plate 1 is provided with a push rod 14 extending backward and upward, and the handle 15 is fixed to the top of the push rod 14.

[0040] Preferably, the traveling wheels are omnidirectional wheels 13, and multiple omnidirectional wheels 13 are evenly arranged at the bottom of the base plate 1.

[0041] Furthermore, it also includes an elastic element for preventing the second tooth 212 from moving away from the first tooth 17. Specifically, the elastic element is a tension spring 18, one end of which is fixedly connected to the rotating shaft seat 12 or the sliding seat 121, and the other end of which is fixedly connected to the base plate seat 1 or the support seat 11.

[0042] Working principle: When in use, open the feed inlet cover 24 and add an appropriate amount of white powder (such as quicklime) for marking lines into the screen cylinder 21 through the feed port 23. Then close the feed inlet cover 24 again to seal the feed port 23. Due to the powder's physical structure, the white powder has the following physical properties that prevent it from flowing out of the screen cylinder 21 when it is stationary or not shaking: 1. Internal friction: Powder particles are small and irregularly shaped, resulting in significant surface friction between particles. When powder accumulates in the sieve (mesh cylinder 21), the contact and compression between particles increase friction, forming a stable structure that hinders the flow of powder.

[0043] 2. Electrostatic interaction: Static electricity may be generated between powder particles due to friction, causing the particles to attract each other, which further increases the overall stability.

[0044] 3. Arch bridge effect: When powder accumulates, a void structure is formed between the particles, similar to the supporting effect of an arch bridge. This structure can withstand a certain amount of pressure, keeping the powder as a whole stable and preventing it from leaking out of the holes in the screen (screen cylinder 21).

[0045] Of course, preventing the white powder from flowing out of the mesh of the screen cylinder 21 in a static state also depends on the size of the mesh. Generally, the size of the mesh is matched to the physical properties of the white powder. Taking powdered quicklime as an example, the mesh area inside the screen cylinder 21 can be 1-5 square millimeters, ensuring that the white powder will not flow out when the screen cylinder 21 is static and not shaking, but also ensuring that the white powder will flow out when the screen cylinder 21 is shaking. The corresponding mesh sizes inside the screen cylinder 21 mentioned above can be adaptively determined through experiments and adjustments, and are not unique values.

[0046] During the marking process, the drive motor 31 is controlled to rotate the net cylinder 21. As the net cylinder 21 rotates, the protruding teeth 212 around it also rotate. Due to the interference of the protruding teeth 17, the protruding teeth 17 will get stuck in the groove between two adjacent protruding teeth 212. Since both the protruding teeth 17 and 212 are arc-shaped, there will be no jamming between them. Due to the interference, the protruding teeth 212 will move the cylinder frame 211 and the net cylinder 21 upwards until the top of the arc surface of the protruding teeth 212 contacts the top of the arc surface of the protruding teeth 17. The net cylinder 21 continues to rotate and moves downwards under its own gravity. The protruding teeth 17 re-enters the groove between the corresponding two protruding teeth 212, thus forming a new cycle of up and down movement of the net cylinder 21. This cyclical process causes the screen cylinder 21 to move up and down repeatedly and vibrate. Under the action of vibration, the white powder inside the screen cylinder 21 will flow out through the mesh of the screen cylinder 21. The white powder flowing out from the screen cylinder 21 will then fall to the ground through the discharge port 1 52 and the discharge port 2 19 to form a mark.

[0047] Since the drive motor 31 and the rotating shaft 25 are connected by a spring coupling 32, the screen cylinder 21 can rotate and move up and down simultaneously to generate vibration. By adjusting the speed of the drive motor 31, the amount of white powder discharged per unit time can be further controlled, and its discharge amount can be flexibly adjusted according to actual applications to meet the needs of marking.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A marking device for architectural surveying and mapping comprising a base plate mount, characterised in that: A rotating shaft seat is slidably provided on the top of the base plate, and a mesh cylinder is rotatably fitted on the rotating shaft seat. Several arc-shaped protrusions are evenly arranged around the mesh cylinder. A protrusion is provided on the base plate that forms a movement interference with the protrusions. A drive mechanism for driving the mesh cylinder to rotate is also provided on the base plate. A walking wheel and a handle are also provided on the base plate to facilitate the movement of the base plate. The outer side of the mesh cylinder is provided with a sealing cover for sealing the mesh cylinder, and the sealing cover and the base plate are provided with a discharge port.

2. The marking device for building surveying and mapping according to claim 1, characterized in that: The top left and right sides of the base plate are respectively provided with upwardly extending support seats, and the rotating shaft seat is made of two and is slidably disposed on the two support seats respectively.

3. The marking device for building surveying and mapping according to claim 1, characterized in that: The left and right sides of the net cylinder are respectively provided with rotating shafts arranged coaxially with the net cylinder, and the rotating shafts on the left and right sides of the net cylinder are rotatably connected to the corresponding rotating shaft seats.

4. The marking device for building surveying and mapping according to claim 1, characterized in that: The mesh cylinder is supported by a cylindrical frame, which consists of two symmetrically arranged circular rings connected by several connecting rods.

5. A marking device for building surveying according to claim 4, characterized in that: The two openings of the mesh cylinder are sealed by sealing caps, which are fixed to two corresponding rings inside the cylinder frame.

6. The marking device for building surveying according to claim 1, characterized in that: The driving mechanism is a drive motor mounted on the base plate, and the drive motor is connected to the mesh cylinder through a spring coupling.

7. The marking device for building surveying according to claim 5, characterized in that: The sealing cover has multiple feeding ports evenly arranged along its circumference, and the sealing cover is also provided with a material inlet cover for sealing the feeding ports.

8. The marking device for building surveying according to claim 1, characterized in that: The discharge port includes a discharge port one located at the bottom of the sealing cover, and a discharge port two located on the base plate that corresponds vertically to discharge port one.

9. A marking device for architectural surveying and mapping according to claim 8, characterized in that: The bottom of the base plate is also provided with a sealing plate for sealing the discharge port, and the sealing plate is slidably disposed on the bottom surface of the base plate.

10. A marking device for architectural surveying and mapping according to claim 1, characterized in that: The base plate is provided with a push rod extending backward and upward, and the handle is fixed to the top of the push rod.

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