A fan-shaped adjustable arc-shaped pay-off device

Abstract

The application relates to the technical field of arc lofting, and specifically discloses a fan-shaped adjustable arc lofting device which comprises a base and a lofting rope, the bottom of the base is provided with a leveling mechanism for adjusting the height of the base, the top of the base is provided with a fixing bolt, a plurality of retractable lofting rods are vertically arranged on the fixing bolt, the lofting rods are all provided with scale marks, the end of the lofting rod close to the head of the fixing bolt is provided with a winding mechanism for winding the lofting rope, the ends of the lofting rods are all provided with positioning mechanisms, one end of the lofting rope is fixed with the winding mechanism, and the other end of the lofting rope is fixed with the positioning mechanism. The lofting rods with scales can be rotated and stretched, so that the radius and the angle of the arc line can be intuitively adjusted, the radius and the angle of the arc lofting can be adjusted, and the precision of the arc lofting is improved.

Description

Technical Field

[0001] This application relates to the technical field of arc-shaped layout, and in particular to a fan-shaped adjustable arc-shaped layout device. Background Technology

[0002] In building construction and landscaping, curved layout is a common and technically demanding procedure. With the diversification of modern architectural design styles and the pursuit of curvilinear aesthetics in landscape planning, the application of curved patterns and structures in various projects is becoming increasingly widespread, placing higher demands on the accuracy and convenience of curved layout tools.

[0003] In related technologies, there are various types of arc-shaped layout devices commonly found on the market. Among them, the woodworking compass is a relatively basic tool, which mainly draws arcs by fixing the center and adjusting the radius. Due to its simple structure, it is relatively easy to use. Flexible tape measure layout requires multiple people to work together to straighten the tape measure to simulate an arc, and it has a certain degree of flexibility in operation. Laser layout instrument projects arc lines with a laser, which can achieve high precision. Temporary and simple tools, such as layout tools made of ropes and wooden stakes, are widely used because they are easy to obtain and have low cost.

[0004] In practical use, the radius adjustment range of a woodworking compass is limited, and it is difficult to maintain stability on complex terrain. Flexible measuring tapes rely on multiple people working together, making it difficult to guarantee accuracy. While laser line laying instruments offer high accuracy, they are expensive and easily affected by light, impacting the accuracy of the arcs. Makeshift tools are unstable and cannot be reused. For projects requiring high precision in curved lines, existing arc laying devices are difficult to define and adjust precisely, resulting in low accuracy and making direct line laying impossible, thus failing to meet the high-precision requirements for curved lines. Summary of the Invention

[0005] In order to adjust the radius and angle of arc layout and improve the accuracy of arc layout, this application provides a fan-shaped adjustable arc layout device, which has the effect of adjusting the radius and angle of arc layout and improving the accuracy of arc layout.

[0006] The fan-shaped adjustable arc-shaped wire feeding device provided in this application adopts the following technical solution: An adjustable arc-shaped wire laying device includes a base and a laying rope. The bottom of the base is provided with a leveling mechanism for adjusting the height of the base, and the top of the base is provided with a fixing bolt. Multiple retractable wire laying rods are vertically mounted on the fixing bolt. Each of the multiple wire laying rods is provided with a scale mark. A winding mechanism for winding the laying rope is provided at the end of the wire laying rod near the head of the fixing bolt. A positioning mechanism is provided at the end of each of the multiple wire laying rods. One end of the laying rope is fixed to the winding mechanism, and the other end of the laying rope is fixed to the positioning mechanism.

[0007] By adopting the above technical solutions, the leveling mechanism adjusts the base height during pre-construction preparations, adapting to complex and uneven construction sites and reducing errors in the laying-out radius and angle caused by base tilt, thus improving the accuracy of arc laying out. The rotation and extension of multiple graduated laying-out rods facilitate intuitive adjustment of the arc radius and angle, improving laying-out efficiency and accuracy. A rope winding mechanism replaces manual rope pulling and, in conjunction with the laying-out rope, controls the release length, making arc drawing efficient and precise. The positioning mechanism allows for rapid positioning of the arc's endpoints, facilitating the formation of a stable arc laying-out benchmark, which can be reused multiple times, effectively improving construction efficiency.

[0008] Optionally, the leveling mechanism includes multiple leveling bolts and fixed support feet. The multiple leveling bolts are threaded to the bottom of the four corners of the base, and the fixed support feet are fixed to the bottom center of the base. The fixed support feet are located between the multiple leveling bolts.

[0009] By adopting the above technical solution, when constructing on uneven terrain, the height difference of the base can be adjusted by changing the extension length of multiple leveling bolts, providing a stable horizontal reference for the device. The fixed support leg serves as the central support point, forming a multi-point support structure with the multiple leveling bolts, reducing the risk of the base tipping over or swaying due to unilateral force, and improving the stability of the structure.

[0010] Optionally, the leveling bolt is provided with two rods, which are symmetrically arranged. One end of each rod is fixedly connected to the leveling bolt, and the other end of each rod is a spherical end, which facilitates the application of force to rotate the leveling bolt.

[0011] By adopting the above technical solution, the two rods are symmetrically distributed to form a "handle" structure, which facilitates the application of force to rotate the leveling bolt and realize the height adjustment of the base.

[0012] Optionally, the bottom of the fixed support foot is threaded with a centering telescopic striker, the end of which is tapered.

[0013] By adopting the above technical solution, the end of the centering telescopic striker can be driven into soft ground such as soil and sand, reducing displacement or shaking of the device during construction and improving structural stability. The centering telescopic striker and the fixed support foot are detachably connected, facilitating adjustment of the base height using leveling bolts.

[0014] Optionally, the positioning mechanism includes a threading plate and a positioning bolt. Each end of the plurality of threading rods is provided with a threading plate. The threading plate has a threading groove along its length. The groove wall of the threading groove has a positioning groove. The depth of the positioning groove is the same as the depth of the threading groove. The end of the laying rope away from the winding mechanism is connected to the positioning bolt. The positioning bolt is threaded to the inner wall of the positioning groove.

[0015] By adopting the above technical solution, the smoothness of arc layout can be improved by sliding the layout rope sequentially along multiple threading grooves during construction. The positioning bolts, passing through the positioning grooves and threaded onto the threading plate, effectively reduce displacement or slippage of the layout rope on the layout pole, thus improving the accuracy and stability of the arc.

[0016] Optionally, the threading groove is arc-shaped.

[0017] By adopting the above technical solution, the arc shape of the threading groove is adapted to the arc trajectory required for layout. After the layout rope is inserted into the threading groove, it can fit the arc of the threading groove, which makes it easier to guide the layout rope to form the required arc shape.

[0018] Optionally, the rope winding mechanism includes a pay-off box, a roller, and a rocker arm. The two ends of the roller are rotatably connected inside the pay-off box, the pay-off rope is wound around the roller, and the rocker arm passes through the top of the pay-off box and is fixed to the roller.

[0019] By adopting the above technical solution, the staking rope can be wound and released by rotating the rocker arm, which in turn drives the roller to rotate. This facilitates quick adjustment of the staking rope length and effectively improves construction efficiency.

[0020] Optionally, the wire-laying rod includes a telescopic sleeve and a telescopic rod, the telescopic rod being slidably connected to the inner wall of the telescopic sleeve, and both the telescopic sleeve and the telescopic rod having through holes spaced apart. The telescopic sleeve is provided with a locking element, which is used to fix the telescopic sleeve and the telescopic rod by passing through the through holes of both.

[0021] By adopting the above technical solution, when the through hole on the telescopic sleeve and the through hole on the telescopic rod are aligned, inserting the locking piece into the through hole will lock the telescopic sleeve and the telescopic rod together, making the operation simple and efficient. By rotating the telescopic sleeve and pulling the telescopic rod, the angle and radius of the arc layout can be adjusted, effectively improving the flexibility of arc layout.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. When the base is placed in the designated position, the radius and angle of the arc can be easily and intuitively adjusted by rotating and extending multiple graduated line-laying rods on the fixing bolts, thereby improving the efficiency and accuracy of arc laying out; 2. When constructing on uneven terrain, the height difference of the base can be adjusted by turning multiple leveling bolts to change their extended length. This provides a stable horizontal reference for the device. The fixed support foot serves as the central support point, forming a multi-point support structure with the multiple leveling bolts. This reduces the risk of the base tipping over or swaying due to unilateral force, thus improving the stability of the structure. 3. During construction, the layout rope is slid along multiple threading grooves in sequence, which effectively improves the smoothness of the arc layout. The positioning bolt passes through the positioning groove and is fixed to the threaded plate, which can effectively reduce the displacement or slippage of the layout rope on the layout pole and improve the accuracy and stability of the arc. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the fan-shaped adjustable arc-shaped wire feeding device of this application, showing the arc after the wire feeding rod is rotated and extended, and the wire feeding rope is not fixed to the wire feeding plate; Figure 2 This is a schematic cross-sectional view of the non-rotating multiple wire-feeding rods in the fan-shaped adjustable arc-shaped wire-feeding device of this application. Figure 3 This is a cross-sectional structural schematic diagram of the rope winding mechanism in the fan-shaped adjustable arc-shaped wire feeding device of this application.

[0024] Reference numerals: 1. Base; 2. Leveling mechanism; 21. Leveling bolt; 22. Fixed support foot; 3. Fixed bolt; 4. Threading rod; 41. Telescopic sleeve; 42. Telescopic rod; 5. Scale marking; 6. Rope winding mechanism; 61. Threading box; 611. Box body; 612. Box cover; 62. Roller; 63. Rocker arm; 7. Positioning mechanism; 71. Threading plate; 72. Positioning bolt; 8. Rod body; 9. Centering telescopic striker; 10. Threading groove; 11. Positioning groove; 12. Through hole; 13. Locking element; 14. First nut; 15. Second nut; 16. Threading rope. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses a fan-shaped adjustable arc-shaped wire feeding device, referring to... Figure 1The system includes a base 1 and a laying-out rope 16. A leveling mechanism 2 is located at the bottom of the base 1, and a fixing bolt 3 and four retractable laying-out rods 4 are located at the top of the base 1. The four laying-out rods 4 are perpendicular to the fixing bolt 3, and the fixing bolt 3 passes through one end of each of the four laying-out rods 4 and is threaded onto the base 1. The four laying-out rods 4 are tightly fitted onto the fixing bolt 3 and each has a scale marking 5. A rope winding mechanism 6 is located at the end of the laying-out rod 4 near the head of the fixing bolt 3 for winding the laying-out rope 16. A positioning mechanism 7 is located at the end of each of the four laying-out rods 4 away from the fixing bolt 3, and the end of the laying-out rope 16 away from the rope winding mechanism 6 is fixed to the positioning mechanism 7. During construction, the height of the base 1 is first adjusted using the leveling mechanism 2, then the angle and radius of the laying-out rods 4 are adjusted, and finally, the laying-out rope is fixed to the laying-out rods 4 by the positioning mechanism 7. This allows for adjustment of the radius and angle of the arc, effectively improving the accuracy of arc laying-out.

[0027] Reference Figure 1 and Figure 2 The positioning mechanism 7 consists of a threading plate 71 and a positioning bolt 72. The threading plate 71 is fixed to the end of each of the four wire-laying rods 4 furthest from the fixing bolt 3. The threading plate 71 has a threading groove 10 along its length, and a positioning groove 11 is formed in the wall of the threading groove 10. The depth of the positioning groove 11 is equal to the depth of the threading groove 10. The end of the laying rope 16 furthest from the winding mechanism 6 is fixed to the positioning bolt 72. The positioning bolt 72 passes through the positioning groove 11 and is threaded onto the inner wall of the positioning groove 11. The laying rope 16 is led out from the laying box 61 and passes through the threading groove 10 of each wire-laying rod 4 in sequence. Then, the free end of the laying rope 16 is fixed to the fixing bolt 3. Finally, the fixing bolt 3 passes through the positioning groove 11 and is threaded onto the inner wall of the positioning groove 11, thereby fixing the laying rope 16 to the threading plate 71. This reduces displacement of the laying rope 16 during the laying process, improving the accuracy and stability of the arc.

[0028] Reference Figure 1 The threading groove 10 is set in an arc shape, which can adapt to the arc trajectory required for laying out, so that the laying out rope 16 forms a stable arc shape after passing through the threading groove 10.

[0029] Reference Figure 2The line-laying rod 4 consists of a telescopic sleeve 41 and a telescopic rod 42. The telescopic rod 42 passes through the end of the telescopic sleeve 41 away from the fixing bolt 3 and is slidably connected to the inner wall of the telescopic sleeve 41. The surface of the telescopic rod 42 is marked with scales for accurate reading of the extension length. Both the telescopic rod 42 and the telescopic sleeve 41 have multiple through holes 12 spaced apart. The telescopic sleeve 41 is equipped with a locking element 13; in this embodiment, the locking element 13 is a bolt. By rotating the telescopic sleeve 41 and pulling the telescopic rod 42, the arc angle and radius can be adjusted. Then, the through holes 12 on the telescopic sleeve 41 and the telescopic rod 42 are aligned, and the locking element 13 passes through the through holes 12 of both, locking the telescopic rod 42 and the telescopic sleeve 41. This operation is convenient and improves the stability of the telescopic rod 42.

[0030] Reference Figure 2 The base 1 is also equipped with a first nut 14 and a second nut 15. The first nut 14 is located at the top center of the base 1 and inside the base 1. The second nut 15 is positioned opposite the first nut 14. Both the first nut 14 and the second nut 15 are threadedly connected to the fixing bolts 3. The fixing bolts 3 pass through the second nut 15 and the ends of the four wire-laying rods 4 in sequence before being threadedly fixed to the first nut 14. This effectively improves the stability of the structure and facilitates the replacement and disassembly of the fixing bolts 3 and the wire-laying rods 4, reducing maintenance costs.

[0031] Reference Figure 2 The leveling mechanism 2 includes four leveling bolts 21 and fixed support feet 22. The four leveling bolts 21 are located at the four corners of the base 1 and are threaded onto the base 1. The fixed support feet 22 are fixed at the center of the bottom of the base 1 and are coaxially arranged with the fixed bolts 3. The fixed support feet 22 are located between the four leveling bolts 21. When it is necessary to adjust the height of the base 1 relative to uneven terrain, the extension length of the leveling bolts 21 at different angles is changed, thereby adjusting the levelness of the base 1. At the same time, the multiple leveling bolts 21 and the fixed support feet 22 jointly support the base 1, improving the stability of the structure.

[0032] Reference Figure 2 Each of the four leveling bolts 21 has two symmetrical rods 8. One end of the rod 8 is fixedly connected to the leveling bolt 21, and the other end is spherical. When the height of the base 1 needs to be adjusted, the leveling bolt 21 can be adjusted by manually rotating the rod 8, which helps to reduce adjustment time. A centering telescopic striker 9 is threadedly fixed at the center of the bottom of the fixed support leg 22. The end of the centering telescopic striker 9 away from the fixed support leg 22 is conical, which makes it easy to penetrate into soft ground such as soil or sand, reducing displacement and shaking of the base 1 and improving the stability of the structure. The centering telescopic striker 9 is detachably connected to the fixed support leg 22, which facilitates the replacement and disassembly of the fixed support leg 22 and is also conducive to the synchronous adjustment of the height of the base 1 in conjunction with the leveling bolts 21.

[0033] Reference Figure 1 and Figure 3 The rope winding mechanism 6 consists of a pay-off box 61, a roller 62, and a rocker arm 63. The roller 62 is located inside the box body 611, and its two ends are rotatably connected to the pay-off box 61 via bearings. The laying-out rope 16 is wound around the roller 62. The rocker arm 63 passes through the pay-off box 61 and is fixed to the roller 62. The pay-off box 61 is fixedly connected to a threading plate 71 near the head of the fixing bolt 3. A wire outlet hole is provided on the side of the pay-off box 61 near the threading plate 71 for easy access of the laying-out rope 16. The pay-off box 61 consists of a box body 611 and a cover 612. One side of the cover 612 is hinged to the side wall of the box body 611, facilitating the installation and replacement of the laying-out rope 16. Rotating the rocker arm 63 drives the roller 62 to rotate, realizing the winding and unwinding of the laying-out rope 16, effectively improving construction efficiency.

[0034] The implementation principle of the fan-shaped adjustable arc-shaped laying device disclosed in this application embodiment is as follows: When laying out an arc, the base 1 is first placed in the designated position, and then the leveling bolt 21 and the fixed support foot 22 are adjusted to make the base 1 horizontal and stable. According to the radius and length of the required arc, the length and angle of the laying rod 4 are reasonably adjusted to unfold the laying rod 4 into a fan shape. Then, the laying rope 16 is led out from the laying box 61 and passed through the threading groove 10 of each laying rod 4 in sequence. Finally, the laying rope 16 is fixed with the positioning bolt 72, and the positioning bolt 72 passes through the positioning groove 11 to fix the laying rope 16 with the threading plate 71. The leveling bolt 21 and the fixed support foot 22 enable the device to be stably fixed on complex terrain. The telescopic and graduated laying rod 4 makes the adjustment of the arc radius and angle more convenient, effectively improving the construction efficiency and meeting the construction requirements of high-precision arc curves.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fan adjustable arc unwinding device characterized by: The system includes a base (1) and a laying rope (16). The bottom of the base (1) is provided with a leveling mechanism (2) for adjusting the height of the base (1). The top of the base (1) is provided with a fixing bolt (3). Multiple retractable laying rods (4) are vertically arranged on the fixing bolt (3). Each of the multiple laying rods (4) is provided with a scale mark (5). The end of the laying rod (4) near the head of the fixing bolt (3) is provided with a rope winding mechanism (6) for winding the laying rope (16). The ends of the multiple laying rods (4) are provided with a positioning mechanism (7). One end of the laying rope (16) is fixed to the rope winding mechanism (6), and the other end of the laying rope (16) is fixed to the positioning mechanism (7).

2. The fan adjustable arc catenary arrangement of claim 1, wherein, The leveling mechanism (2) includes multiple leveling bolts (21) and fixed support feet (22). The multiple leveling bolts (21) are threaded to the four corners of the base (1). The fixed support feet (22) are fixed to the bottom center of the base (1). The fixed support feet (22) are located between the multiple leveling bolts (21). The fixed support feet (22) and the fixed bolts (3) are coaxially arranged.

3. The fan adjustable arc catenary arrangement of claim 2, wherein, The leveling bolt (21) is provided with two rods (8), which are symmetrically arranged. One end of the rod (8) is fixedly connected to the leveling bolt (21), and the other end of the rod (8) is a spherical end, which facilitates the application of force to rotate the leveling bolt (21).

4. The fan adjustable arc catenary arrangement of claim 2, wherein, The bottom of the fixed support foot (22) is threaded with a centering telescopic striker (9), the end of which is tapered.

5. The fan adjustable arc catenary device of claim 1, wherein, The positioning mechanism (7) includes a threading plate (71) and a positioning bolt (72). The ends of the plurality of threading rods (4) are provided with threading plates (71). The threading plate (71) has a threading groove (10) along its length. The groove wall of the threading groove (10) has a positioning groove (11). The depth of the positioning groove (11) is the same as the depth of the threading groove (10). The end of the laying rope (16) away from the winding mechanism (6) is connected to the positioning bolt (72). The positioning bolt (72) is threaded to the inner wall of the positioning groove (11).

6. The fan adjustable arc catenary arrangement of claim 5, wherein, The threading groove (10) is arc-shaped.

7. The fan adjustable arc catenary wire device of claim 1, wherein, The rope winding mechanism (6) includes a wire release box (61), a roller (62) and a rocker arm (63). The two ends of the roller (62) are rotatably connected inside the wire release box (61). The wire release rope (16) is wound around the roller (62). The rocker arm (63) passes through the top of the wire release box (61) and is fixed to the roller (62).

8. The fan adjustable arc catenary wire device of claim 1, wherein, The wire-laying rod (4) includes a telescopic sleeve (41) and a telescopic rod (42). The telescopic rod (42) is slidably connected to the inner wall of the telescopic sleeve (41). Both the telescopic sleeve (41) and the telescopic rod (42) are provided with through holes (12) spaced apart. The telescopic sleeve (41) is provided with a locking member (13). When the telescopic sleeve (41) and the telescopic rod (42) are fixed, the locking member (13) passes through the through holes (12) of both to achieve fixation.

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