A circular arc ruler for detecting the arc of a circular arc beam template
Patent Information
- Application Number
- CN202521076395.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-05-29
AI Technical Summary
现有技术中，缺乏对圆弧梁模板弧度的检测工具，制作好的圆弧梁模板质量难以保证，时常发生圆弧混凝土构件成型后观感质量不佳的情况，造成后期需进行二次返工概率增加
[0011] The arc-shaped straightedge designed in this invention can effectively check the bending condition and flatness of the curved surface of the arc beam after the formwork is erected, ensuring the forming quality of the cast-in-place concrete arc beam and other structures.
Smart Images
Figure CN224757730U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tool for detecting the curvature of a circular arc beam template, specifically a circular arc ruler used for detecting the curvature of a circular arc beam template. Background Technology
[0002] With the diversification of architectural design, curved beam structures are becoming increasingly common. In the traditional construction process of curved beams, it is necessary to fabricate curved beam formwork, and the accuracy of the curvature of the formwork directly affects the quality of the formed curved beam. Current technology lacks tools for detecting the curvature of curved beam formwork, making it difficult to guarantee the quality of the fabricated formwork. This often results in poor appearance of the formed curved concrete components, increasing the probability of rework in later stages. Utility Model Content
[0003] This utility model discloses a circular arc ruler for detecting the curvature of a circular arc beam template. It can effectively check the curvature of the circular arc beam template after it is erected, so as to adjust the curvature of the circular arc beam template in a timely manner and ensure that the flatness of the curved surface meets the design requirements.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A circular arc straightedge for detecting the curvature of a circular arc beam template includes a horizontal connecting rod, position adjusting rods, fastening clips, and measuring steel wire ropes. The horizontal connecting rod includes a connecting rod body with a horizontal groove along its length and a horizontal adjustment bubble. Three position adjusting rods are installed on the horizontal connecting rod, with their length directions perpendicular to the length direction of the horizontal connecting rod. Each position adjusting rod has an adjusting slider embedded in the horizontal groove, allowing the position adjusting rod to slide along the groove. The measuring steel wire rope is sequentially threaded between the three position adjusting rods. Fastening clips for limiting the position of the adjusting sliders are installed on the horizontal connecting rod beside the position adjusting rods. The distance from the position of the measuring steel wire rope on each of the three position adjusting rods to the horizontal connecting rod is adjustable.
[0005] Furthermore, the horizontal adjustment bubble is installed on the opposite surface of the horizontal slide groove, and the horizontal adjustment bubble is located in the middle of the connecting rod body.
[0006] Furthermore, the position adjusting rod includes an adjusting slider, a threaded sleeve, a long threaded rod, a conical end, a short threaded rod, and a hexagonal rotating handle. The threaded sleeve is hollow and contains internal threads. The long threaded rod passes through the threaded sleeve. The hexagonal rotating handle is fixedly installed at the top of the long threaded rod. A threaded hole is opened at the bottom of the long threaded rod. The conical end is fixed at the bottom of the short threaded rod. The short threaded rod is inserted into the threaded hole at the bottom of the long threaded rod and fixed. An adjusting slider is fixedly installed on the outer wall of the threaded sleeve. A through hole for a steel wire rope is opened at the conical end.
[0007] Furthermore, both the cross-section of the adjusting slider and the cross-section of the horizontal slide are T-shaped.
[0008] Furthermore, the wire rope perforation is a conical hole with a large outer diameter and a small inner diameter. The end of the measuring wire rope is equipped with an anti-detachment clip, which is locked at the wire rope perforation to prevent the measuring wire rope from coming out of the wire rope perforation.
[0009] Furthermore, the long threaded rod is provided with a scale for determining the adjustment length of the long threaded rod.
[0010] Furthermore, the fastening device includes a bolt and a nut, and the connecting rod body has multiple threaded holes with through horizontal sliding grooves. After the bolt passes through the threaded hole, the nut is fitted on it for locking.
[0011] The arc-shaped straightedge designed in this invention can effectively check the bending condition and flatness of the curved surface of the arc beam after the formwork is erected, ensuring the forming quality of the cast-in-place concrete arc beam and other structures. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the arc-shaped straightedge in the embodiment; Figure 2 This is a schematic diagram of the horizontal connecting rod. Figure 3 This is a schematic diagram of the assembly structure of the position adjustment rod; Figure 4 This is an exploded view of the position adjustment lever; Figure 5 A schematic diagram showing the location of the opening at the conical end and the structure of the clamping device; Figure 6 This is a structural diagram of the fastening clip; Figure 7 Diagram showing the use of a circular arc straightedge when checking the inner curvature of a circular arc beam template; Figure 8 Diagram showing the use of a circular arc straightedge when checking the outer curvature of a circular arc beam template; Figure 9 This is a schematic diagram of using a circular arc straightedge to check the curvature of a circular arc beam template.
[0013] Figure label: 1. Horizontal connecting rod; 11. Connecting rod body; 12. Horizontal slide; 13. Horizontal adjustment bubble; 2. Position adjusting rod; 21. Adjusting slider; 22. Threaded sleeve; 23. Long threaded rod; 24. Conical end; 241. Wire rope through hole; 242. Anti-detachment clip; 25. Short threaded rod; 26. Hexagonal rotating handle; 3. Measure the wire rope; 4. Fastening clips; 5. Formwork for circular arc beams. Detailed Implementation
[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0015] This embodiment discloses a circular arc ruler for detecting the curvature of a circular arc beam template, the structure of which is as follows: Figure 1 As shown, it mainly includes a straight horizontal connecting rod 1, on which three position adjusting rods 2 are mounted. The length direction of the three position adjusting rods 2 is perpendicular to the length direction of the horizontal connecting rod 1, and the distance between the three position adjusting rods 2 is adjustable. Fastening clips 4 are also installed on the horizontal connecting rod 1 beside the position adjusting rods 2, and the fastening clips 4 are used to limit the position of the position adjusting rods 2. The three position adjusting rods 2 are connected in sequence by measuring steel wire ropes 3.
[0016] The structure of horizontal link 1 is as follows Figure 2 As shown, the horizontal connecting rod 1 includes a strip-shaped connecting rod body 11 with a rectangular cross-section. A horizontal groove 12 is formed on one side of the connecting rod body 11 along the length direction of the connecting rod body 11. The horizontal groove 12 has a T-shaped cross-section and is wider near the inner side and narrower near the outer side. A horizontal adjustment bubble 13 is installed on the connecting rod body 11 at the middle of the opposite side of the horizontal groove 12. By observing the horizontal adjustment bubble 13, it can be determined whether the connecting rod body 11 is in a horizontal state.
[0017] The structure of position adjustment lever 2 is as follows Figure 3 and Figure 4As shown, the position adjustment rod 2 includes an adjustment slider 21, a threaded sleeve 22, a long threaded rod 23, a conical end 24, a short threaded rod 25, and a hexagonal rotating handle 26. The threaded sleeve 22 is a hollow cylindrical structure with threads on its inner wall. The outer thread of the long threaded rod 23 matches the inner thread of the threaded sleeve 22. The long threaded rod 23 passes through the threaded sleeve 22. The hexagonal rotating handle 26 is fixedly installed at the top of the long threaded rod 23. The long threaded rod 23 has a scale. By holding the hexagonal rotating handle 26 and rotating the long threaded rod 23, the length of the bottom of the long threaded rod 23 extending out of the threaded sleeve 22 can be adjusted. By observing the scale, the distance from the bottom of the conical end 24 to the connecting rod body 11 can be known. A threaded hole is provided at the bottom end of the long threaded rod 23, and a conical end 24 is fixed to the bottom of the short threaded rod 25. The outer thread of the short threaded rod 25 matches the inner thread of the threaded hole at the bottom of the long threaded rod 23. The short threaded rod 25 is screwed into the threaded hole at the bottom of the long threaded rod 23 for fixation. An adjusting slider 21 is fixedly installed on the outer wall of the threaded sleeve 22. The cross-section of the adjusting slider 21 is T-shaped, wider on the outside and narrower on the inside, and its shape matches the cross-sectional shape of the horizontal slide groove 12. When installing the position adjusting rod 2, the adjusting slider 21 is slid into the horizontal slide groove 12 from the open end on the side, allowing the position adjusting rod 2 to slide along the horizontal slide groove 12, thereby adjusting the distance between the three position adjusting rods 2. Figure 5 As shown, a through-hole 241 for a steel wire rope is made on the conical end 24, allowing the measuring steel wire rope 3 to pass through the through-hole 241. The outer diameter of the through-hole 241 is larger than the inner diameter. An anti-detachment clip 242 is installed at the end of the measuring steel wire rope 3. The anti-detachment clip 242 cannot pass through the through-hole 241. The measuring steel wire rope 3 can be tightened between the three position adjusting rods 2 by the limiting effect of the anti-detachment clip 242. When installing the three position adjusting rods 2, one position adjusting rod 2 is installed in the middle of the connecting rod body 11, and the other two position adjusting rods 2 are installed on its two sides respectively.
[0018] The structure of fastener 4 is as follows Figure 6 As shown, the fastening clip 4 includes bolts and nuts. Multiple threaded holes with through horizontal sliding grooves 12 are opened on the connecting rod body 11. After the position of each position adjusting rod 2 on the connecting rod body 11 is adjusted, a bolt is inserted into the threaded hole next to the position adjusting rod 2. Then, the nut is put on the bolt from the other side and tightened to limit the position of the position adjusting rod 2.
[0019] The arc-shaped straightedge designed in this utility model can be used to inspect both the outer and inner arc surfaces of an arc-shaped beam formwork. When used for the former, it can be used as follows: Figure 8As shown, adjust the length of the long threaded rod 23 of the three position adjusting rods 2 extending out of the bottom of the threaded sleeve 22, so that the length of the long threaded rod 23 of the middle position adjusting rod 2 extending out is shorter than the length of the long threaded rod 23 of the position adjusting rods 2 on both sides, so that the measuring wire rope 3 is positioned between the three position adjusting rods 2. Figure 8 The upward bending state is shown. When used for detecting the latter case, as... Figure 7 As shown, the long threaded rod 23 of the position adjusting rod 2 located in the middle is made to extend beyond the length of the long threaded rods 23 on both sides of the position adjusting rod 2, so that the measuring wire rope 3 is positioned between the three position adjusting rods 2. Figure 7 The figure shows a downward bending state.
[0020] When using the arc-shaped straightedge designed in this utility model to detect the curvature of an arc-shaped beam template, its usage is as follows. The following example demonstrates the detection of the outer curvature of the arc-shaped beam template (for reference). Figure 9 As shown in the figure, the following can be used as a reference for detecting the inner curvature of the arc beam template.
[0021] Step 1): According to the design drawings of the circular arc beam, first calculate and confirm the horizontal arc length and radius R of the circular arc beam template 5 on the drawings, and confirm whether the arc to be measured is the arc of the inner side or the arc of the outer side of the circular arc beam template 5. In this embodiment, the measurement of the outer arc is taken as an example. Step 2): Based on the arc length and radius marked on the CAD drawing of the circular beam, measure the arc length and radius on the drawing. Figure 9 The lengths of L1, L2, L3, L4, and L5 are shown. Step 3): Adjust the positions of the three position adjustment rods 2 on the horizontal connecting rod 1 according to the lengths of L1, L2, L3, L4, and L5; Specifically, such as Figure 9 As shown, the straight line EF can be aligned with the horizontal connecting rod 1. The middle position adjustment rod 2 is moved to point D, and its position is fixed by installing fastening clips 4 on both sides. Then, the hexagonal rotary handle 26 is rotated to adjust the protrusion length of the long threaded rod 23, so that the vertical length from the bottom of the conical end 24 of the middle position adjustment rod 2 to the connecting rod body 11 is L4. The left position adjustment rod 2 is moved to point E, so that the distance ED is L1. The right position adjustment rod 2 is moved to point F, so that the distance DF is L2. The protrusion length of the long threaded rod 23 of the left and right position adjustment rods 2 is adjusted respectively, so that the vertical length from the bottom of the left conical end 24 to the connecting rod body 11 is L3, and the vertical length from the bottom of the right conical end 24 to the connecting rod body 11 is L5. Similarly, after the positions of the left and right position adjustment rods 2 are adjusted, the left and right position adjustment rods 2 need to be limited by the fastening clips 4 respectively. Step 4): Use the adjusted arc straightedge to measure the arc beam template 5 to be measured, and adjust the leveling bubble 13 to ensure that the connecting rod body 11 is horizontal. Figure 9 Points B, A, and C are three points on the outer arc of the circular arc beam template 5. The bottom of the conical end 24 of the three position adjustment rods 2 can be placed against the above three points of the circular arc beam template 5 respectively. If the arc of the circular arc beam template 5 after being erected completely conforms to the design drawings, the bending shape formed by the measuring wire rope 3 between the three position adjustment rods 2 should completely fit the outer arc surface of the circular arc beam template 5. Otherwise, there will be a gap between the bending shape formed by the measuring wire rope 3 and the outer arc surface of the circular arc beam template 5. At this time, it is necessary to determine the size of the gap between the measuring wire rope 3 on the circular arc ruler and the outer arc surface of the circular arc beam template 5. Step 5): After the measurement is completed, record the size of the gap between the measuring wire rope 3 and the outer arc surface of the arc beam template 5. According to the design requirements, confirm whether the gap is within the specified range, and then you can know whether the fabrication of the arc beam template 5 meets the design requirements.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A circular arc ruler for detecting the curvature of a circular arc beam template, characterized in that: The device includes a horizontal connecting rod, position adjusting rods, fastening clips, and measuring wire ropes. The horizontal connecting rod includes a connecting rod body with a horizontal groove along its length and a horizontal adjustment bubble. Three position adjusting rods are installed on the horizontal connecting rod, with their length directions perpendicular to the length direction of the horizontal connecting rod. Each position adjusting rod has an adjusting slider that is embedded in the horizontal groove, allowing the position adjusting rod to slide along the groove. The measuring wire rope is sequentially threaded between the three position adjusting rods. Fastening clips for limiting the position of the adjusting sliders are installed on the horizontal connecting rod next to the position adjusting rods. The distance from the position of the measuring wire rope on each of the three position adjusting rods to the horizontal connecting rod is adjustable.
2. The arc ruler for detecting the curvature of an arc beam template according to claim 1, characterized in that: The horizontal adjustment bubble is installed on the opposite surface of the horizontal slide, and the horizontal adjustment bubble is located in the middle of the connecting rod body.
3. A circular arc ruler for detecting the curvature of a circular arc beam template according to claim 1, characterized in that: The position adjustment rod includes an adjustment slider, a threaded sleeve, a long threaded rod, a conical end, a short threaded rod, and a hexagonal rotating handle. The threaded sleeve is hollow and contains internal threads. The long threaded rod passes through the threaded sleeve. The hexagonal rotating handle is fixedly installed at the top of the long threaded rod. A threaded hole is opened at the bottom of the long threaded rod. The conical end is fixed at the bottom of the short threaded rod. The short threaded rod is inserted into the threaded hole at the bottom of the long threaded rod and fixed. An adjustment slider is fixedly installed on the outer wall of the threaded sleeve. A through hole for a steel wire rope is opened at the conical end.
4. A circular arc ruler for detecting the curvature of a circular arc beam template according to claim 1, characterized in that: The cross-section of the adjusting slider and the cross-section of the horizontal slide are both T-shaped.
5. A circular arc ruler for detecting the curvature of a circular arc beam template according to claim 3, characterized in that: The wire rope perforation is a conical hole with a larger outer diameter and a smaller inner diameter. The end of the measuring wire rope is equipped with an anti-detachment clip, which is locked at the wire rope perforation to prevent the measuring wire rope from coming out of the wire rope perforation.
6. A circular arc ruler for detecting the curvature of a circular arc beam template according to claim 3, characterized in that: The long threaded rod is provided with a scale for determining the adjustment length of the long threaded rod.
7. A circular arc ruler for detecting the curvature of a circular arc beam template according to claim 1, characterized in that: The fastening components include bolts and nuts. Multiple threaded holes with through horizontal sliding grooves are opened on the connecting rod body. After the bolt passes through the threaded hole, the nut is fitted on it for locking.