Scribing device for cutting pile head of pile foundation

Abstract

The utility model discloses a marking device for cutting a pile head of a pile foundation, and relates to the technical field of pile foundation construction. The problem that in the prior art, follow-up construction is affected due to inaccurate marking of a pile head of a pile foundation is solved. Comprising L-shaped fixing supports and a connecting block, one supporting arm of each fixing support is fixedly connected with the connecting block, the other supporting arm of each fixing support is provided with a first screw hole, the first screw holes are in threaded connection with first bolts, at least three fixing supports are evenly arranged on the peripheral side wall of the connecting block in a surrounding mode, the connecting block is vertically and rotatably provided with a rotating shaft, and the rotating shaft is transversely provided with a rotating rod. The rotating rod is provided with a transverse through groove, the rotating rod is vertically provided with a scribing rod, the scribing rod is provided with a vertical through groove, the rotating rod and the scribing rod penetrate through the vertical through groove through a third bolt and are fixed to the transverse through groove through a nut, the end, away from the rotating rod, of the scribing rod is provided with a scribing tool, and the top end of the rotating rod is provided with a gradienter. The scribing device for the pile foundation pile cutting head is used for accurately and rapidly scribing in the circumferential direction of the pile foundation pile cutting head.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation construction technology, and in particular to a marking device for cutting the pile head of a pile foundation. Background Technology

[0002] In pile foundation construction, pile head cutting is often involved. Although the verticality deviation of the pile foundation construction is often within the allowable range, it is unavoidable. This type of error will cause the accumulation of errors in the subsequent construction of the superstructure of the building or structure, which will affect the accuracy of the construction and affect the construction quality.

[0003] Currently, the common method for positioning and laying out pile heads is to use a straightedge, which has a large error. Furthermore, the accuracy is affected by the visual error of each point when connecting the fixed points at different angles. In addition, the line drawing process is cumbersome, inefficient, and inconvenient for people. Utility Model Content

[0004] The present invention provides a marking device for the pile head of a pile foundation, which can accurately and quickly mark the pile head.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model discloses a marking device for cutting pile heads in pile foundations, comprising an L-shaped fixed bracket and a connecting block. One arm of the fixed bracket is fixedly connected to the connecting block, and the other arm of the fixed bracket is provided with a first screw hole, through which a first bolt is threaded. At least three fixed brackets are evenly arranged around the periphery of the connecting block. The connecting block is vertically rotatable with a rotating shaft, and a rotating rod is horizontally arranged on the rotating shaft. The rotating rod has a horizontal through groove along its length, and a marking rod is vertically arranged on the rotating rod. The marking rod has a vertical through groove along its length. The rotating rod and the marking rod are fixed by a third bolt passing through the vertical through groove and a nut in the horizontal through groove. A marking tool is provided at the end of the marking rod away from the rotating rod, and a level is provided at the top of the rotating rod.

[0007] Furthermore, the peripheral sidewall of the connecting block is provided with a sleeve, the sleeve corresponds one-to-one with the fixed bracket, one arm of the fixed bracket and the connecting block is sleeved in the corresponding sleeve, the sleeve is provided with a second screw hole, and a second bolt is threaded into the second screw hole.

[0008] Furthermore, the marking rod is provided with scale lines, which are arranged along the long groove side of the vertical through groove.

[0009] Furthermore, the marking tool is chalk, pencil, iron sheet, iron stick, steel sheet, or steel stick.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This application provides a marking device for cutting pile heads in pile foundations. At least three L-shaped fixed supports have their short arms, the ends furthest from the long arms, evenly arranged around the periphery of a connecting block to form a downward-facing fixed claw. A rotating shaft is vertically connected to the connecting block, and a rotating rod is horizontally fixed to the rotating shaft. A marking rod is vertically bolted to the rotating rod, and a marking tool is installed at the lower end of the marking rod. When marking the pile head, the fixed claw is placed on the pile foundation with the long arms of the fixed supports facing it. The long arms of the fixed supports are located on the side of the pile foundation. Tightening the first bolt, which abuts against the pile foundation, initially fixes the device. Observing the level at the top of the rotating rod, loosening the first bolts corresponding to the long arms of the fixed supports requiring fine-tuning, adjusts the level. Positioned in the middle, ensuring the marking end of the marking tool is on the same horizontal plane, guaranteeing horizontal marking of the pile foundation by subsequent marking tools. Tighten the first bolt to complete the installation and fixation of the marking device to the pile foundation. Loosen the nut corresponding to the third bolt and adjust the third bolt to slide up and down in the vertical through groove of the marking rod to adjust to the required marking height. Adjust the third bolt to slide left and right in the horizontal through groove of the rotating rod so that the marking end of the marking tool abuts against the pile foundation. Tighten the nut corresponding to the third bolt. Rotate the rotating rod, causing it to rotate around the axis, which in turn drives the marking rod to rotate around the pile foundation, and the marking end of the marking tool to rotate horizontally around the circumference of the pile foundation. Rotating the rotating rod one revolution completes the accurate and rapid horizontal circumferential marking of the pile head. The marking device for pile head of this application is used for circumferential marking of the pile head. The marking operation is simple, the marking accuracy is high, and the marking efficiency is high. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a marking device for cutting the pile head of a pile foundation, provided in an embodiment of this utility model.

[0014] Figure label:

[0015] 1. Pile foundation; 2. Fixed bracket; 3. First bolt; 4. Connecting block; 5. Second bolt; 6. Rotating shaft; 7. Level; 8. Rotating rod; 9. Third bolt; 10. Marking rod; 11. Marking tool. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown in the figure, this embodiment provides a marking device for cutting pile heads in pile foundations, including an L-shaped fixed bracket 2 and a connecting block 4. One arm of the fixed bracket 2 is fixedly connected to the connecting block 4, and the other arm of the fixed bracket 2 is provided with a first screw hole. The first screw hole is threaded with a first bolt 3. At least three fixed brackets 2 are evenly arranged around the periphery of the connecting block 4. The connecting block 4 is vertically rotatably provided with a rotating shaft 6. The rotating shaft 6 is horizontally provided with a rotating rod 8. The rotating rod 8 is provided with a horizontal through groove along its length. The rotating rod 8 is vertically provided with a marking rod 10. The marking rod 10 is provided with a vertical through groove along its length. The rotating rod 8 and the marking rod 10 are fixed by a third bolt 9 passing through the vertical through groove and the nut of the horizontal through groove. A marking tool 11 is provided at the end of the marking rod 10 away from the rotating rod 8. A level 7 is provided at the top of the rotating rod 8. The connecting block has a through hole, and the lower end of the rotating shaft is rotatably fitted into the through hole. Furthermore, a bearing is installed in the through hole, and the lower end of the rotating shaft is fixedly fitted into the bearing's ring to reduce resistance and ensure smooth rotation. A fixed shaft is vertically installed on the connecting block, and a through hole is provided on the fixed shaft. A bearing is installed in the through hole, and the lower end of the rotating shaft is fixedly fitted into the bearing's ring to reduce the impact on the fixed bracket during scribing. The level 7 is glued to the top of the rotating shaft 6. The fixed bracket 2, connecting block 4, rotating shaft 6, rotating rod 8, and scribing rod 10 are steel structural components. The short support arm of the L-shaped fixed bracket 2 is welded to the peripheral side wall of the connecting block 4, and the rotating rod 8 is welded to the upper end of the rotating shaft 6. The number of L-shaped fixed brackets 2 is at least three, such as three, four, five, or six.

[0019] A marking device for pile head cutting based on the above structure comprises at least three L-shaped fixed supports 2, the ends of the short arms (horizontal arms) of which are away from the long arms (vertical arms) are evenly mounted around the periphery of the connecting block 4 to form a fixed claw with the long arm facing downward. A rotating shaft 6 is vertically rotatably connected to the connecting block 4, a rotating rod 8 is horizontally fixed to the rotating shaft 6, and a marking rod 10 is vertically bolted to the rotating rod 8. A marking tool 11 is installed at the lower end of the marking rod 10. When marking the pile head cutting, the fixed claw is placed on the pile 1 with the pile 1 facing upward. The long arm of the fixed support 2 is located on the side of the pile 1. The first bolt 3 is tightened, and the screw of the first bolt 3 abuts against the pile 1 and is initially fixed to the pile 1. The level 7 at the top of the rotating rod 8 is observed, and the first bolt 3 corresponding to the long arm of the fixed support 2 that needs to be finely adjusted is loosened so that the bubble of the level 7 is positioned at the level of the pile 1. In the middle position, ensure that the marking end of the marking tool 11 is on the same horizontal plane to guarantee that the marking tool 11 will mark the pile 1 horizontally. Tighten the first bolt 3 to complete the installation and fixation of the marking device to the pile 1. Loosen the nut corresponding to the third bolt 9 and adjust the third bolt 9 to slide up and down in the vertical through groove of the marking rod 10 to adjust to the required marking height. Adjust the third bolt 9 to slide left and right in the horizontal through groove of the rotating rod 8 so that the marking end of the marking tool 11 abuts against the pile 1 (without affecting the rotation marking). Tighten the nut corresponding to the third bolt 9 and rotate the rotating rod 8. The rotating rod 8 moves around the rotating shaft 6 in a circle, which drives the marking rod 10 to move in a circle, which drives the marking tool 11 to move in a circle around the side wall of the pile 1. The marking end of the marking tool 11 marks the pile 1 horizontally in a circumferential direction. Rotate the rotating rod 8 one revolution to complete the accurate and rapid circumferential horizontal marking of the pile head. The present application discloses a marking device for the pile head of a pile foundation, which is used for marking lines around the circumference of the pile head. The marking operation is simple, the marking accuracy is high, and the marking efficiency is high.

[0020] As one possible implementation method, such as Figure 1 As shown, the peripheral sidewall of the connecting block 4 is provided with a sleeve, which corresponds one-to-one with the fixed bracket 2. One arm of the fixed bracket 2, which is fixedly connected to the connecting block 4, is sleeved inside the corresponding sleeve. The sleeve has a second threaded hole, and a second bolt 5 is threaded into the second threaded hole. The sleeve is a steel structural component and is welded to the peripheral sidewall of the connecting block 4. The sleeve and the fixed bracket 2 are cuboid structural components to prevent the short arm of the fixed bracket 2 from rotating inside the sleeve.

[0021] Loosen the second bolt 5, allowing the upper arm of the fixed bracket 2 to slide within the sleeve. Adjust the length between the upper arm of the fixed bracket 2 and the sleeve. The sum of the lengths of the upper arm of the fixed bracket 2 located outside the sleeve and the sleeve should be greater than the pile diameter. The length of the thread of the first bolt 3 should be greater than the distance between the lower arm of the fixed bracket 2 and the pile. Tighten the second bolt 5 to limit the upper arm of the fixed bracket 2, fixing it within the sleeve to accommodate piles of different diameters. The second bolt hole is located at the top of the sleeve.

[0022] As one possible implementation method, such as Figure 1 As shown, the marking rod 10 is provided with scale lines, which are set along the long groove side of the vertical through groove.

[0023] To accurately mark the pile cutting height, graduation lines are drawn along the long groove of the vertical through groove of the marking rod 10. The upper end of the long groove of the vertical through groove is the zero graduation line, and the lower end of the long groove of the vertical through groove is the maximum graduation line.

[0024] The marking tool 11 is chalk, pencil, iron sheet, iron stick, steel sheet, or steel stick.

[0025] To ensure clear and legible pile foundation markings, the marking tool 11 can be chalk, pencil, iron sheet, iron stick, steel sheet, or steel stick. If the marking tool 11 is chalk or pencil, a mounting cylinder is welded to the lower end of the marking rod 10, and the chalk or pencil is inserted into the mounting cylinder, with the axis of the mounting cylinder perpendicular to the marking rod 10. Alternatively, the marking tool 11 can be iron sheet, iron stick, steel sheet, or steel stick, welded to the lower end of the marking tool 11, with the iron sheet, iron stick, steel sheet, or steel stick perpendicular to the marking rod 10.

[0026] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A marking device for cutting the pile head of a pile foundation, characterized in that, The assembly includes an L-shaped fixed bracket (2) and a connecting block (4). One arm of the fixed bracket (2) is fixedly connected to the connecting block (4). The other arm of the fixed bracket (2) is provided with a first screw hole, and a first bolt (3) is threaded into the first screw hole. At least three fixed brackets (2) are evenly arranged around the periphery of the connecting block (4). The connecting block (4) is vertically rotatable with a rotating shaft (6), and the rotating shaft (6) is horizontally provided with a rotating rod (8). The rotating rod (8) has a transverse through groove along its length. The rotating rod (8) has a vertical scribing rod (10). The scribing rod (10) has a vertical through groove along its length. The rotating rod (8) and the scribing rod (10) are fixed by a third bolt (9) passing through the vertical through groove and the nut of the transverse through groove. A scribing tool (11) is provided at the end of the scribing rod (10) away from the rotating rod (8). A level (7) is provided at the top of the rotating rod (8).

2. The marking device for cutting pile heads in pile foundations according to claim 1, characterized in that, The peripheral sidewall of the connecting block (4) is provided with a sleeve, which corresponds one-to-one with the fixed bracket (2). One arm of the fixed bracket (2) and the connecting block (4) is sleeved in the corresponding sleeve. The sleeve has a second screw hole, and a second bolt (5) is threaded into the second screw hole.

3. The marking device for cutting pile heads in pile foundations according to claim 1, characterized in that, The marking rod (10) is provided with scale lines, which are set along the long groove side of the vertical through groove.

4. The marking device for cutting pile heads in pile foundations according to claim 1, characterized in that, The marking tool (11) is chalk, pencil, iron sheet, iron stick, steel sheet, or steel stick.

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