Line drawing detection device for constructional engineering
By adjusting the multi-dimensional position of the drawing device and using a squeezing device to stabilize the drawing pen, combined with adjusting the level of the board with a spirit level, the problem of uneven lines caused by the poor contact between the drawing pen and the board was solved, thus improving the accuracy and stability of the drawing detection.
Patent Information
- Application Number
- CN202520567314.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing line marking detection devices suffer from inconsistent line depths due to the poor contact between the marking pen and the board material, affecting detection accuracy.
The position of the drawing frame is adjusted using horizontal and vertical tracks. The drawing pen is made to fit tightly against the board using the extrusion cylinder and extrusion spring. The length of the line is determined by the threaded rod and locking nut. The drawing pen is stabilized by the limit clamp and clamping plate. The board level is adjusted by the level and observation bubble.
Ensure the drawing pen makes close contact with the board material to avoid inconsistent line thickness, improve inspection accuracy, facilitate pen replacement and board level adjustment, and enhance the effectiveness of line drawing inspection.
Smart Images

Figure CN223889998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, specifically to a line marking and detection device for building engineering. Background Technology
[0002] Construction engineering refers to the physical engineering project formed by the construction of various buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. It requires construction activities to be realized. During the construction process, it is necessary to mark the dimensions of building panels. When measuring dimensions, marking lines need to be added to the panels to mark the measurement range and benchmark. The marking and inspection device plays an important role in ensuring project quality and improving construction efficiency. Chinese patent CN219806094 U discloses a marking and inspection device for construction engineering services. This device can fix panels of different specifications and has strong applicability.
[0003] However, current line marking inspection devices often produce lines of varying depths because the marking pen makes contact with the board during movement. This inconsistency in contact between the pen and the board reduces the visibility of the lines and affects the accuracy of subsequent inspection results. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a line marking and inspection device for building engineering. It solves the problem that current line marking and inspection devices often produce lines of varying depths when marking lines on boards, because the marking pen contacts the board during movement. This uneven contact between the marking pen and the board often reduces the visibility of the lines and affects the accuracy of subsequent board inspection results.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: a line marking and inspection device for building engineering, comprising a line marking platform, a horizontal track in the horizontal direction being provided at the back end of the line marking platform, a vertical track being connected to the inner side of the horizontal track in the vertical direction, and a movable line marking frame being slidably connected to the inner side of the vertical track.
[0008] The movable drawing frame has a movable guide groove inside, and a scale line is provided on the top surface of the movable drawing frame. A threaded rod is connected through the inner side of the movable guide groove. A compression cylinder is fixedly connected to the bottom end of the threaded rod, and locking nuts are connected to the outer side of the threaded rod at the connection positions of the bottom and top sides of the movable drawing frame. An indicator needle is connected to the edge of the locking nut on the top of the movable drawing frame.
[0009] A compression spring is embedded and fixedly installed inside the extrusion cylinder. A movable disk that slides along the inner wall of the extrusion cylinder is provided at the bottom of the compression spring. A movable connecting rod is connected to the middle of the bottom of the movable disk. One end of the movable connecting rod that extends out of the extrusion cylinder is connected to a limit clamping seat. Two clamping disks are symmetrically connected to the two sides of the limit clamping seat by bolts. A drawing pen is limited and clamped to the inner side of the limit clamping seat by the two clamping disks.
[0010] As a preferred technical solution of the line marking and inspection device for building engineering according to this utility model, the horizontal track and the vertical track are respectively screw-driven tracks. The bottom of the vertical track slides horizontally along the interior of the horizontal track through a drive block, and the end of the movable line marking frame slides longitudinally along the interior of the vertical track through a moving block.
[0011] As a preferred technical solution of the line marking and inspection device for building engineering according to this utility model, the threaded rod moves horizontally along the moving guide groove inside the movable line marking frame, and the threaded rod is limited and connected inside the movable line marking frame by a locking nut, and the indicator needle is in contact with the scale line.
[0012] As a preferred technical solution of the line marking and inspection device for building engineering of this utility model, the bottom of the extrusion cylinder is provided with a guide hole, the movable connecting rod slides along the guide hole, the clamping plate is driven to move by bolts, and the inner side edge of the clamping plate is provided with anti-slip rubber at the contact position with the line marking pen.
[0013] As a preferred technical solution of the line marking and inspection device for building engineering of this utility model, threaded cylinders are embedded and installed at each corner of the inner side of the line marking table. An adjusting screw is connected to the inner side of the threaded cylinder through a thread, and a support adsorption plate for supporting the plate is connected to the top of the adjusting screw.
[0014] Two sliding guides are symmetrically connected to one side of the movable drawing frame. A lifting frame is slidably connected to the inner side of the two sliding guides. The lifting frame is limited and fixed by locking bolts at the edge of the sliding guides. A level is horizontally connected to the bottom of the lifting frame, and an observation bubble is set at the top center of the level.
[0015] As a preferred technical solution of the line marking and inspection device for building engineering according to this utility model, the threaded cylinder is fixedly installed on the inner side of the line marking table, the top of the adjusting screw is connected to a turntable near the support adsorption plate, and an anti-slip rubber ring is provided at the top edge of the support adsorption plate.
[0016] As a preferred technical solution of the line marking and inspection device for building engineering according to this utility model, the lifting and moving frame is U-shaped, and the locking bolt passes through the sliding guide and is in close contact with the side of the lifting and moving frame.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, this utility model provides a line marking and inspection device for building engineering, which has the following beneficial effects:
[0019] 1. The horizontal and vertical tracks allow for convenient multi-dimensional adjustment of the position of the movable drawing frame, enabling multi-position adjustment of the movable drawing frame and the drawing pen at its bottom. This facilitates multi-directional drawing as needed. The compression spring, moving plate, and movable linkage inside the compression cylinder ensure that the drawing pen is in close contact with the board surface under the elastic support of the compression spring, thus ensuring the visibility of the drawn lines and avoiding inconsistent line thickness that could affect subsequent inspection. The limiting clamp and clamping plate facilitate convenient limiting and clamping of the drawing pen, making disassembly and replacement of the drawing pen easier.
[0020] The threaded rod moves along the guide groove inside the movable drawing frame. Combined with the indicator pin on the side of the locking nut, it is convenient to move the threaded rod according to the scale line, which makes it easy to determine the length of the drawn line. This facilitates subsequent drawing with higher precision. The locking nut also helps to restrict the position of the threaded rod, so that the drawing pen maintains positional stability when drawing lines.
[0021] 2. By using the sliding guide seat, lifting and moving frame, and locking bolts, the lifting and moving frame can move the level ruler to a position before marking lines on the board. This allows the level ruler to be in contact with the board surface, and the observation bubble inside the level ruler can be used to quickly check the levelness of the board after placement. Combined with the threaded cylinder, adjusting screw, and support suction plate, multiple adjustment methods can be used to flexibly select and adjust different support positions of the board. This multi-point adjustment method can adjust the levelness of the board placement and prevent the board from being placed crookedly, which would reduce the accuracy of the marking and further ensure the effectiveness of the board marking and inspection. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model.
[0023] Figure 2 This is a schematic diagram of the structure of the threaded cylinder of this utility model.
[0024] Figure 3 This is a schematic diagram of the vertical track of this utility model.
[0025] Figure 4 This is a structural schematic diagram of the mobile line drawing frame of this utility model.
[0026] Figure 5 This is a schematic diagram of the structure of the extrusion cylinder of this utility model.
[0027] Figure 6 This is a schematic diagram of the structure of the support adsorption plate of this utility model.
[0028] Figure 7 This is a schematic diagram of the structure of the level ruler of this utility model.
[0029] In the diagram: 1. Marking platform; 2. Horizontal track; 3. Vertical track; 4. Movable marking frame; 5. Movable guide groove; 6. Scale line; 7. Threaded rod; 8. Extrusion cylinder; 9. Locking nut; 10. Indicator needle; 11. Extrusion spring; 12. Moving disc; 13. Movable connecting rod; 14. Limiting clamp; 15. Clamping disc; 16. Marking pen; 17. Threaded cylinder; 18. Adjusting screw; 19. Support suction plate; 20. Sliding guide; 21. Lifting moving frame; 22. Locking bolt; 23. Level; 24. Observation bubble. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.
[0031] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.
[0032] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and for 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, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical 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 invention based on the specific circumstances. Example
[0034] Please see Figure 1-7 The present invention provides the following technical solution: a line marking and detection device for building engineering, including a line marking platform 1, a horizontal track 2 is provided at the back end of the line marking platform 1, a vertical track 3 is connected to the inner side of the horizontal track 2 in the vertical direction, and a movable line marking frame 4 is slidably connected to the inner side of the vertical track 3. The horizontal track 2 and the vertical track 3 are respectively screw-driven tracks. The bottom of the vertical track 3 slides horizontally along the interior of the horizontal track 2 through a drive block. The end of the movable line marking frame 4 slides longitudinally along the interior of the vertical track 3 through a moving block, so as to facilitate the adjustment of the position of the movable line marking frame 4 from multiple dimensions.
[0035] The movable drawing frame 4 has a movable guide groove 5 inside, and a scale line 6 is provided on the top surface of the movable drawing frame 4. A threaded rod 7 is connected through the inner side of the movable guide groove 5. A compression cylinder 8 is fixedly connected to the bottom end of the threaded rod 7. Locking nuts 9 are connected to the outer side of the threaded rod 7 at the bottom and top sides of the movable drawing frame 4. An indicator needle 10 is connected to the edge of the locking nut 9 at the top of the movable drawing frame 4. The threaded rod 7 moves horizontally along the movable guide groove 5 inside the movable drawing frame 4. The threaded rod 7 is limited and connected to the inside of the movable drawing frame 4 by the locking nut 9. The indicator needle 10 is in contact with the scale line 6. The locking nut 9 can conveniently limit the position of the threaded rod 7, so that the drawing pen 16 can maintain positional stability when drawing lines. When the threaded rod 7 moves, it moves according to the scale line 6, so as to facilitate the determination of the length of the drawn line.
[0036] A compression spring 11 is embedded and fixedly installed inside the compression cylinder 8. A movable disk 12 that slides along the inner wall of the compression cylinder 8 is provided at the bottom of the compression spring 11. A movable connecting rod 13 is connected to the middle of the bottom of the movable disk 12. One end of the movable connecting rod 13 that extends out of the compression cylinder 8 is connected to a limit clamping seat 14. Two clamping disks 15 are symmetrically connected to the two sides of the limit clamping seat 14 by bolts. A drawing pen 16 is limited and clamped by the two clamping disks 15 on the inner side of the limit clamping seat 14. A guide hole is provided at the bottom of the compression cylinder 8. The movable connecting rod 13 slides along the guide hole. The clamping disks 15 are driven to move by bolts. The contact position between the inner side of the clamping disk 15 and the drawing pen 16 is provided with anti-slip rubber, so that the movable connecting rod 13 can be guided and limited to move. Through the limit clamping seat 14 and the clamping disks 15, the drawing pen 16 can be stably limited and clamped, making the drawing pen 16 more stable and convenient to disassemble and replace.
[0037] Threaded cylinders 17 are embedded in each corner of the inner side of the marking table 1. An adjusting screw 18 is threadedly connected to the inner side of the threaded cylinder 17. The top of the adjusting screw 18 is connected to a support suction plate 19 that supports the board. The threaded cylinder 17 is fixedly installed on the inner side of the marking table 1. A turntable is connected to the top of the adjusting screw 18 near the support suction plate 19. An anti-slip rubber ring is provided at the top edge of the support suction plate 19 to facilitate the rotation of the adjusting screw 18 and ensure the stability of the support suction plate 19 in placing the board. The board can be flexibly adjusted to different support positions through multi-position adjustment, thereby adjusting the level of the board placement through multi-point adjustment.
[0038] Two sliding guide seats 20 are symmetrically connected to one side of the movable drawing frame 4. A lifting moving frame 21 is slidably connected to the inner side of the two sliding guide seats 20. The lifting moving frame 21 is limited and fixed by locking bolts 22 at the edge of the sliding guide seats 20. A level 23 is horizontally connected to the bottom of the lifting moving frame 21. The lifting moving frame 21 is U-shaped. The locking bolts 22 pass through the sliding guide seats 20 and are in close contact with the side of the lifting moving frame 21. The lifting moving frame 21 can easily move the level 23. The position of the lifting moving frame 21 can also be limited by the locking bolts 22. An observation bubble 24 is set at the top center of the level 23.
[0039] The working principle and usage process of this utility model are as follows: In the process of drawing lines on the board, the board needs to be placed on the top of the drawing table 1 first, and the board is stably supported by the support suction plate 19. With the help of the horizontal track 2 and the vertical track 3, the position of the movable drawing frame 4 can be adjusted from multiple angles, so as to realize the multi-position adjustment of the drawing pen 16 at the bottom of the movable drawing frame 4.
[0040] After the board is placed, the position of the movable marking frame 4 is adjusted by adjusting the horizontal rail 2 and the vertical rail 3. Before marking the board, the lifting moving frame 21 can move the level ruler 23 so that the level ruler 23 can fit against the surface of the board. The observation bubble 24 inside the level ruler 23 can be used to quickly detect the levelness of the board after placement. If the levelness of the board is skewed, the threaded cylinder 17 and the adjusting screw 18 are used to support the position of the adsorption plate 19. By adjusting the support positions of multiple adsorption plates 19, the different support positions of the board can be flexibly selected and adjusted using multi-position adjustment, so as to adjust the levelness of the board and avoid the reduction of the accuracy of the marking due to the skewed placement of the board during subsequent marking.
[0041] After the board is stably and horizontally placed on multiple support adsorption plates 19, the position of the movable drawing frame 4 is adjusted from multiple dimensions using the horizontal rail 2 and the vertical rail 3. This allows for multi-position adjustment of the drawing pen 16 at the bottom of the movable drawing frame 4, facilitating multi-directional drawing as needed. The threaded rod 7 moves along the movable guide groove 5 inside the movable drawing frame 4. Combined with the indicator pin 10 on the side of the locking nut 9, it is convenient to move the threaded rod 7 according to the scale line 6, making it easy to determine the length of the drawn line. This facilitates subsequent drawing with higher precision. The locking nut 9 can restrict the position of the threaded rod 7, ensuring the stability of the position of the drawing pen 16 during subsequent drawing.
[0042] When the drawing pen 16 draws lines, it is made to fit tightly against the surface of the board under the elastic support of the compression spring 11, thereby ensuring the visibility of the drawn lines and avoiding uneven line thickness that would affect subsequent inspection. The limiting clamping seat 14 and the clamping plate 15 facilitate convenient limiting and clamping of the drawing pen 16, making it easier to disassemble and replace the drawing pen 16.
[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A line marking and inspection device for construction engineering, comprising a line marking table (1), characterized in that: The back end of the drawing table (1) is provided with a horizontal track (2) in the horizontal direction. A vertical track (3) is connected to the inner side of the horizontal track (2) in the vertical direction. A movable drawing frame (4) is slidably connected to the inner side of the vertical track (3). The movable drawing frame (4) has a movable guide groove (5) inside, and a scale line (6) is provided on the top surface of the movable drawing frame (4). A threaded rod (7) is connected through the inner side of the movable guide groove (5). A compression cylinder (8) is fixedly connected to the bottom end of the threaded rod (7). Locking nuts (9) are connected to the outer side of the threaded rod (7) and the bottom and top sides of the movable drawing frame (4). An indicator needle (10) is connected to the edge of the locking nut (9) at the top of the movable drawing frame (4). A compression spring (11) is embedded and fixedly installed inside the compression cylinder (8). A movable disk (12) that slides along the inner wall of the compression cylinder (8) is provided at the bottom of the compression spring (11). A movable connecting rod (13) is connected to the middle of the bottom of the movable disk (12). One end of the movable connecting rod (13) that protrudes from the compression cylinder (8) is connected to a limit clamping seat (14). Two clamping disks (15) are symmetrically connected to the two sides of the limit clamping seat (14) by bolts. A drawing pen (16) is connected to the inner side of the limit clamping seat (14) by the two clamping disks (15) for limit clamping.
2. The line marking and inspection device for building engineering according to claim 1, characterized in that: The horizontal track (2) and the vertical track (3) are respectively screw-driven tracks. The bottom of the vertical track (3) slides horizontally along the interior of the horizontal track (2) through a drive block. The end of the movable drawing frame (4) slides longitudinally along the interior of the vertical track (3) through a moving block.
3. The line marking and inspection device for building engineering according to claim 1, characterized in that: The threaded rod (7) moves horizontally along the movable guide groove (5) inside the movable drawing frame (4), and the threaded rod (7) is limited and connected inside the movable drawing frame (4) by the locking nut (9), and the indicator needle (10) is in contact with the scale line (6).
4. The line marking and inspection device for building engineering according to claim 1, characterized in that: The bottom of the extrusion cylinder (8) is provided with a guide hole, the movable connecting rod (13) slides along the guide hole, the clamping plate (15) is driven to move by bolts, and the inner side of the clamping plate (15) is provided with anti-slip rubber at the contact position with the drawing pen (16).
5. The line marking and inspection device for building engineering according to claim 1, characterized in that: Each corner of the inner side of the drawing platform (1) is embedded with a threaded cylinder (17). The inner side of the threaded cylinder (17) is connected to an adjusting screw (18) by a thread. The top of the adjusting screw (18) is connected to a support suction plate (19) for supporting the plate. Two sliding guides (20) are symmetrically connected to one side of the movable drawing frame (4). A lifting moving frame (21) is slidably connected to the inner side of the two sliding guides (20). The lifting moving frame (21) is limited and fixed by locking bolts (22) at the side of the sliding guides (20). A level (23) is horizontally connected to the bottom of the lifting moving frame (21), and an observation bubble (24) is set at the top center of the level (23).
6. The line marking and inspection device for building engineering according to claim 5, characterized in that: The threaded cylinder (17) is fixedly installed on the inner side of the drawing table (1). The top of the adjusting screw (18) is connected to a turntable near the support adsorption plate (19). The top edge of the support adsorption plate (19) is provided with an anti-slip rubber ring.
7. The line marking and inspection device for building engineering according to claim 5, characterized in that: The lifting and moving frame (21) is U-shaped, and the locking bolt (22) passes through the sliding guide (20) and is in close contact with the side of the lifting and moving frame (21).
Citation Information
Patent Citations
Line drawing detection device for constructional engineering service
CN219806094U