Shield segment reinforcing steel bar radian and arc length detection tool

Abstract

The utility model discloses a shield segment reinforcing steel bar radian and arc length detection tool, which comprises a supporting table, a fixing device and a measuring device, and is characterized in that the supporting table is used for bearing a stirrup frame; the fixing device is used for fixing the stirrup frame on the supporting table; the measuring device is used for measuring parameters of the stirrup frame; the measuring device comprises a measuring ruler, a measuring rope and a right-angle triangular ruler, the measuring ruler is slidably mounted on the supporting table, the measuring rope is connected with the measuring ruler through a rotating part, the rotating part is slidably connected with the measuring ruler, the right-angle triangular ruler is slidably mounted on the measuring rope, and a lead weight is arranged at the bottom of the measuring ruler and used for being flush with the front end face of the measuring ruler. The upper end face of the supporting table, the front end face of the supporting table, the measuring rope and the front face of the measuring ruler are all provided with scales. The objective of the utility model is to solve the problem that a stirrup frame detection device in the prior art can only detect the arc length and radian of stirrup frames of the same specification.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel segment technology, specifically to a tooling for detecting the curvature and arc length of the reinforcing bars in shield tunnel segments. Background Technology

[0002] During the manufacturing process of tunnel segments, several steel bars are first tied together to form a stirrup frame, and finally placed in a mold to pour concrete for shaping.

[0003] Stirrups are crucial components in concrete structures used to enhance load-bearing capacity and shear strength. With the expansion of construction projects and advancements in construction technology, the performance requirements for concrete structures are becoming increasingly stringent, making the design and placement of stirrups particularly critical. Stirrups not only effectively limit lateral deformation of concrete and prevent localized damage but also improve the overall stability of the structure. Modern stirrup design typically incorporates computer-aided design technology to optimize their shape and arrangement, thereby meeting the needs of diverse projects. Simultaneously, with the development of new materials and processes, the manufacturing and installation methods of stirrups are constantly being innovated to improve construction efficiency and structural safety.

[0004] Utility model patent application number CN202121886790.X and publication number CN215524443U (hereinafter referred to as "Prior Art 1") discloses a tooling for detecting the dimensions of the steel cage of a tunnel segment. It includes a measuring platform, various measuring plates, gears, and racks. The measuring platform serves as the placement platform for all measuring plates and is equipped with gears. Width measuring plates are located on both sides of the measuring platform and the arc measuring plate. Racks are distributed inside the width measuring plate and mesh with the gears. The top of the width measuring plate has a telescopic hole and a pointer sliding groove, with an arc length scale below the pointer sliding groove. Limiting blocks are located on both sides of the measuring platform, with width scales inside the limiting blocks. The arc measuring plate has a sliding groove. A height measuring plate is located on the upper part of the width measuring plate and has a telescopic rod on it. The telescopic rod engages with the telescopic hole at the top of the width measuring plate, and a height scale is located on the telescopic rod in the middle. The arc length measuring plate engages with the sliding groove on the arc measuring plate. Telescopic pointers are located on both sides of the arc length measuring plate.

[0005] The specification of prior art 1 discloses a tooling for detecting the size of the steel cage of a shield tunnel segment. When in use, the arc length and other parameters of the steel cage are detected by the detection platform. However, in practical applications, it can only measure steel cages with the same arc and cannot adapt to steel cages of different sizes and specifications. Summary of the Invention

[0006] This utility model provides a tooling for detecting the curvature and arc length of steel reinforcement in tunnel lining segments, aiming to solve the problem that existing stirrup frame detection devices can only detect the arc length and curvature of stirrup frames of the same specification.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A tooling for detecting the curvature and arc length of steel reinforcement in tunnel lining segments includes: a support platform, a fixing device, and a measuring device. The support platform is used to support the stirrup frame; the fixing device is used to fix the stirrup frame on the support platform; and the measuring device is used to measure the parameters of the stirrup frame.

[0009] The measuring device includes a measuring ruler, a measuring rope, and a right-angled triangle. The measuring ruler is slidably mounted on a support platform. The measuring rope is connected to the measuring ruler through a rotating part, and the rotating part is slidably connected to the measuring ruler. The right-angled triangle is slidably mounted on the measuring rope. A plumb bob is provided at the bottom of the measuring ruler, and the plumb bob is used to be flush with the front end face of the measuring ruler. The upper end face of the support platform, the front end face of the support platform, the measuring rope, and the front face of the measuring ruler are all provided with scales.

[0010] Furthermore, the support platform has an L-shaped structure and is provided with several legs.

[0011] Furthermore, the fixing device includes a support plate, a sliding plate, and a screw. The support plate is fixedly installed on the support platform and has a threaded hole. The sliding plate is used for sliding connection with the support platform. The screw is threadedly engaged with the threaded hole, and the end of the screw is rotatably connected to the sliding plate.

[0012] Furthermore, a guide rod is fixedly installed at the end of the skateboard, and the guide rod is slidably connected to the support plate.

[0013] Furthermore, the end of the guide rod furthest from the slide plate is positioned to a limiting plate.

[0014] Furthermore, a rotating wheel is provided at the end of the screw.

[0015] Furthermore, the right-angle triangle is equipped with several sliding sleeves, which are used to make a damped sliding connection between the right-angle triangle and the measuring rope through the sliding sleeves.

[0016] Furthermore, a baffle is provided on the support platform to block the stirrup frame.

[0017] Furthermore, a sliding component is also provided on the support platform, and the measuring ruler is slidably connected to the support platform through the sliding component.

[0018] Furthermore, a rotating rod is rotatably mounted on the rotating part, the end of the measuring rope is fixedly connected to the rotating rod, and the rotating part is slidably connected to the measuring ruler.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This utility model mainly includes a support platform, a fixing device, and a measuring device. In actual use, the worker places the stirrup frame on the support platform and then fixes it using the fixing device. At this time, two sides of the stirrup frame form line contact with the support platform. The distance between the two sides is determined by the scale on the support platform and a line is drawn. The midpoint between the two side lines is determined by the maximum and minimum values ​​of the scale. Then, the measuring ruler is slid until its side is aligned with the midpoint, and then the sliding of the measuring ruler is stopped. At this time, the plumb bob, which is flush with the side of the measuring ruler, falls vertically under gravity. Then, the rotating part is slid until it is located at the apex of the stirrup frame. Then, the rotating part is fixed. Because the rotating part is damped and slidably connected to the measuring ruler, it remains stationary when no external force is applied. Then, the measuring rope is rotated until it connects to the apex of one of the side lines. The position of the measuring rope is fixed by inserting a thumbtack into the support platform. Because the measuring rope has markings, workers can easily find its midpoint. Then, they slide a right-angled triangle until its right-angled side coincides with the midpoint of the measuring rope. Stop sliding the triangle; the intersection of the right-angled side and the plumb line is the arc center of the stirrup frame. Workers use a marker to draw lines from the arc center to the vertex and from the arc center to the vertex formed by the edge of the stirrup frame after contact with the support frame. This gives the radius and curvature of the stirrup frame, from which the arc length can be calculated. The width D1 of the stirrup frame can be measured using markings on the upper surface of the support frame, and the thickness D2 can be measured using markings on the measuring ruler. Finally, the dimensions of the stirrup frame are checked, determining whether it meets the standards. This setup allows for the testing of the arc length, curvature, width, and thickness of stirrup frames of different sizes, making it more applicable. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0023] Figure 2 This is the second structural schematic diagram of the present invention.

[0024] Figure 3 This is a schematic diagram showing the connection relationship between the rotating part and the measuring ruler in this utility model.

[0025] In the diagram, 101-support platform, 102-stirrup frame, 103-measuring ruler, 104-measuring rope, 105-right-angle triangle ruler, 106-rotating part, 107-plumb bob, 108-scale, 109-support leg, 110-support plate, 111-slide plate, 112-screw, 113-threaded hole, 114-guide rod, 115-limiting plate, 116-rotating wheel, 117-sliding sleeve, 118-baffle, 119-rotating rod, 120-sliding groove. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of the present invention.

[0027] Please see Figures 1-3 As shown, this embodiment discloses a testing fixture, specifically a fixture for testing the curvature and arc length of steel reinforcement in tunnel segments, including: a support platform 101, a fixing device, and a measuring device. The support platform 101 is used to support the stirrup frame 102; the fixing device is used to fix the stirrup frame 102 on the support platform 101; and the measuring device is used to measure the parameters of the stirrup frame 102.

[0028] The measuring device includes a measuring ruler 103, a measuring rope 104, and a right-angled triangle ruler 105. The measuring ruler 103 is slidably mounted on the support platform 101. The measuring rope 104 is connected to the measuring ruler 103 through a rotating part 106, and the rotating part 106 is slidably connected to the measuring ruler 103. The right-angled triangle ruler 105 is slidably mounted on the measuring rope 104. A plumb bob 107 is provided at the bottom of the measuring ruler 103, and the plumb bob 107 is used to be flush with the front end face of the measuring ruler 103. The upper end face of the support platform 101, the front end face of the support platform 101, the measuring rope 104, and the front face of the measuring ruler 103 are all provided with scales 108.

[0029] This utility model mainly includes a support platform 101, a fixing device, and a measuring device. In actual use, the worker places the stirrup frame 102 on the support platform 101 and then fixes the stirrup frame 102 using the fixing device. At this time, two sides of the bottom of the stirrup frame 102 form line contact with the support platform 101. Then, the distance between the two sides is determined by the scale 108 on the support platform 101, and a line is drawn. The midpoint between the two side lines is determined by the maximum and minimum values ​​of the scale 108. Then, the measuring ruler 103 is slid, so that the side of the measuring ruler 103... After aligning the face with the midpoint, stop sliding the measuring ruler 103. At this time, the plumb bob 107, which is flush with the side of the measuring ruler 103, falls vertically under gravity. Then, slide the rotating part 106 so that the rotating part 106 is located at the top of the stirrup frame 102. Then fix the rotating part 106. Since the rotating part 106 is damped and slidably connected to the measuring ruler 103, it remains stationary when it is not slid by external force. Then rotate the measuring rope 104 so that it connects to the top of one of the edges. After using a thumbtack to drive the support platform 101, adjust the position of the measuring rope 104. To secure the rope, since the measuring rope 104 has markings 108, the worker can easily find its midpoint. Then, the right-angled triangle 105 is slid until its right-angled side coincides with the midpoint of the measuring rope 104. The sliding of the triangle 105 is then stopped. At this point, the intersection of the right-angled side of the triangle 105 and the plumb bob 107 is the arc center of the stirrup frame 102. The worker uses a marker to measure the straight-line distance from the arc center to the vertex, and the straight-line distance from the arc center to the vertex formed by the edge of the stirrup frame 102 after contact with the support frame and the edge of the support frame. By marking lines, the radius and curvature of the stirrup frame 102 can be obtained, and the arc length of the stirrup frame 102 can be calculated. The width D1 of the stirrup frame 102 can be measured through the scale 108 on the upper surface of the support frame, and the thickness D2 of the stirrup frame 102 can be measured through the scale 108 on the measuring ruler 103. Finally, the dimensions of the stirrup frame 102 are inspected to determine whether the stirrup frame 102 meets the standard. The advantage of this setup is that it can inspect the arc length, curvature, width, and thickness of stirrup frames 102 of different specifications and sizes, making it more applicable.

[0030] In some embodiments, the support platform 101 has an L-shaped structure and is provided with a plurality of legs 109.

[0031] In actual use, the L-shaped support platform 101 has scales 108 on both end faces, namely one scale 108 on the front end face and two scales 108 on the upper end face. The two scales 108 on the upper end face are set perpendicular to each other. One scale 108 is used to detect the width D1 of the stirrup frame 102, and the other scale 108 is used to detect the distance between the two edge lines after the stirrup frame 102 contacts the support platform 101.

[0032] In some embodiments, the fixing device includes a support plate 110, a sliding plate 111, and a screw 112. The support plate 110 is fixedly installed on the support platform 101. The support plate 110 is provided with a threaded hole 113. The sliding plate 111 is used to slide and connect with the support platform 101. The screw 112 is threadedly engaged with the threaded hole 113. The end of the screw 112 is rotatably connected with the sliding plate 111.

[0033] In some embodiments, a baffle 118 is provided on the support platform 101, which is used to block the stirrup frame 102.

[0034] In actual use, when it is necessary to fix the stirrup frame 102, the worker places the front end of the stirrup frame 102 against the baffle 118, and then rotates the screw 112. The screw 112 rotates after engaging with the threaded hole 113, thereby pushing the slide plate 111 to slide on the support platform 101 until the slide plate 111 contacts the rear end of the stirrup frame 102, thereby fixing the position of the stirrup frame 102.

[0035] In some embodiments, a guide rod 114 is fixedly provided at the end of the slide plate 111, and the guide rod 114 is slidably connected to the support plate 110.

[0036] In actual use, when the skateboard 111 slides, it drives the guide rod 114 to slide on the support plate 110, thereby achieving the purpose of guiding the sliding of the skateboard 111. This setting makes the guide plate more stable when sliding.

[0037] In some embodiments, the end of the guide rod 114 away from the slide plate 111 is disposed on the limiting piece 115.

[0038] In actual use, the end face of the limiting piece 115 is used to fit against the end face of the support plate 110. The main function of the limiting piece 115 is to limit the sliding of the guide rod 114 and prevent the guide rod 114 from disengaging from the support plate 110.

[0039] In some embodiments, a rotating wheel 116 is provided at the end of the screw 112.

[0040] In actual use, the rotating wheel 116 is fixedly connected to the screw 112. The purpose of setting the rotating wheel 116 is to facilitate the operator to rotate the screw 112.

[0041] In some embodiments, the right-angle triangle 105 is provided with a plurality of sliding sleeves 117, and the right-angle triangle 105 is used to be damped and slidably connected to the measuring rope 104 through the sliding sleeves 117.

[0042] In actual use, the sliding sleeve 117 is damped and slidably connected to the measuring rope 104. The right-angled triangle 105 is always perpendicular to the measuring rope 104. The right-angled triangle 105 is fixedly connected to several sliding sleeves 117. The right-angled triangle 105 is adjacent to the measuring ruler 103. When in use, sliding the sliding sleeve 117 will drive the right-angled triangle 105 to slide to the midpoint of the measuring rope 104, so that the right-angled triangle 105 coincides with the midpoint of the measuring rope 104.

[0043] It should be noted that in this embodiment, the damping sliding connection is a sliding connection with high friction. Without a large external force, the sliding sleeve 117 cannot slide.

[0044] In some embodiments, a sliding component is also provided on the support platform 101, and the measuring ruler 103 is slidably connected to the support platform 101 through the sliding component.

[0045] In actual use, the purpose of setting up the sliding component is to make the sliding between the measuring ruler 103 and the support platform 101 smoother. The sliding component includes a sliding groove 120 set on the measuring ruler 103, and the sliding groove 120 is slidably connected to the baffle 118.

[0046] In some embodiments, a rotating rod 119 is rotatably mounted on the rotating part 106, the end of the measuring rope 104 is fixedly connected to the rotating rod 119, and the rotating part 106 is slidably connected to the measuring ruler 103.

[0047] In actual use, the measuring rope 104 is rotatably connected to the rotating part 106 through the rotating rod 119. In actual use, when it is necessary to rotate the measuring rope 104, the rotating rod rotates on the rotating part 106.

[0048] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] 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 tooling for detecting the curvature and arc length of steel reinforcement bars in tunnel lining segments, characterized in that, include: A support platform (101) is used to support the stirrup frame (102); A fixing device for fixing the stirrup frame (102) on the support platform (101); A measuring device for measuring the parameters of the stirrup frame (102); The measuring device includes a measuring ruler (103), a measuring rope (104), and a right-angle triangle ruler (105). The measuring ruler (103) is slidably mounted on the support platform (101). The measuring rope (104) is connected to the measuring ruler (103) through a rotating part (106). The rotating part (106) is slidably connected to the measuring ruler (103). The right-angle triangle ruler (105) is slidably mounted on the measuring rope (104). A plumb bob (107) is provided at the bottom of the measuring ruler (103). The plumb bob (107) is used to be flush with the front end face of the measuring ruler (103). The upper end face of the support platform (101), the front end face of the support platform (101), the measuring rope (104), and the front face of the measuring ruler (103) are all provided with scales (108).

2. The tooling for detecting the arc and arc length of steel reinforcement in tunnel lining segments according to claim 1, characterized in that: The support platform (101) has an L-shaped structure and is provided with several legs (109).

3. The tooling for detecting the curvature and arc length of the reinforcing bars in a tunnel segment according to claim 1, characterized in that: The fixing device includes a support plate (110), a sliding plate (111), and a screw (112). The support plate (110) is fixedly installed on the support platform (101). The support plate (110) is provided with a threaded hole (113). The sliding plate (111) is used to slide with the support platform (101). The screw (112) is threadedly engaged with the threaded hole (113). The end of the screw (112) is rotatably connected to the sliding plate (111).

4. The tooling for detecting the arc and arc length of the reinforcing bars in a tunnel segment according to claim 3, characterized in that: A guide rod (114) is fixedly provided at the end of the slide plate (111), and the guide rod (114) is slidably connected to the support plate (110).

5. The tooling for detecting the curvature and arc length of the reinforcing bars in a tunnel segment according to claim 4, characterized in that: The end of the guide rod (114) away from the slide plate (111) is set to the limiting piece (115).

6. The tooling for detecting the arc and arc length of steel reinforcement in tunnel lining segments according to claim 1, characterized in that: A wheel (116) is provided at the end of the screw (112).

7. The tooling for detecting the curvature and arc length of the reinforcing bars in a tunnel segment according to claim 1, characterized in that: The right-angle triangle ruler (105) is provided with several sliding sleeves (117), which are used to make a damped sliding connection between the right-angle triangle ruler (105) and the measuring rope (104) through the sliding sleeves (117).

8. The tooling for detecting the arc and arc length of the reinforcing bars in a tunnel segment according to claim 1, characterized in that: A baffle (118) is provided on the support platform (101) to block the stirrup frame (102).

9. The tooling for detecting the curvature and arc length of the reinforcing bars in a tunnel segment according to claim 1, characterized in that: A sliding component is also provided on the support platform (101), and the measuring ruler (103) is slidably connected to the support platform (101) through the sliding component.

10. The tooling for detecting the curvature and arc length of the reinforcing bars in a tunnel segment according to claim 1, characterized in that: A rotating rod (119) is rotatably mounted on the rotating part (106), the end of the measuring rope (104) is fixedly connected to the rotating rod (119), and the rotating part (106) is slidably connected to the measuring ruler (103).

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