A measuring tool for checking highway bridge cylindrical pier formwork

Abstract

The utility model provides a kind of highway bridge cylindrical pier formwork checking measuring appliance, it is related to highway bridge pouring technical field, including the auxiliary telescopic rod of fixed setting on pier formwork, auxiliary telescopic rod is provided with several, top end is connected with tray, prism is provided on tray, the fixed end bottom of auxiliary telescopic rod is hinged with turning card through second pivot, turning card is right-angle card piece, horizontal section and the top surface of pier formwork are pasted, vertical section and the inboard of pier formwork are pasted.The utility model has the beneficial effects that: reasonable in design, simple structure, safe and reliable, the problem of sight obstruction is solved by lifting auxiliary telescopic rod and top tray to check with total station for high pier formwork, while the problem of insufficient safety and accuracy of erecting prism on wood formwork is solved.

Description

Technical Field

[0001] This utility model relates to the field of highway bridge casting technology, and in particular to a measuring tool for checking the cylindrical pier template of highway bridges. Background Technology

[0002] Cylindrical piers for highway bridges are generally made of cast-in-place concrete. Therefore, verifying the verticality of the piers and the center deviation of the formwork is crucial. In the past, the common practice for formwork verification and measurement was to place a wooden board on top of the pier, measure the center of the pier from all sides according to its diameter, and then mark the center on the board. This method has several drawbacks: First, it is unsuitable for large-diameter pier formwork. When construction workers stand on the board to measure the center, the board deflects excessively, resulting in insufficient accuracy. Second, the accuracy is insufficient because the formwork and pier are not on the same horizontal plane, so the measurement cannot be perfectly aligned with the pier formwork radius, leading to errors that require multiple adjustments to the measuring tape. Third, safety cannot be guaranteed. Placing wooden formwork on large-diameter formwork requires workers to stand on the formwork and erect a prism tripod. The wooden formwork lacks rigidity, limiting the standing space and increasing the risk of accidents.

[0003] Solving the aforementioned technical problems is the challenge facing this utility model. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a measuring tool for verifying cylindrical pier formwork for highway bridges. This tool solves the problem of obstructed view when using a total station to verify high pier formwork by employing a lifting auxiliary telescopic rod and a top tray. It also addresses the safety and accuracy issues associated with erecting prisms on wooden formwork.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model provides a measuring tool for checking the cylindrical pier template of highway bridge, including an auxiliary telescopic rod fixedly set on the pier template, wherein there are several auxiliary telescopic rods and a tray is connected to the top of the rod.

[0006] A prism is provided on the tray.

[0007] The bottom of the fixed end of the auxiliary telescopic rod is hinged to a pivot clip via a second pivot.

[0008] The turning clip is a right-angle clip, with the horizontal section fitting against the top surface of the pier column template and the vertical section fitting against the inner side of the pier column template.

[0009] The top of the telescopic end of the auxiliary telescopic rod is hinged to the edge of the tray via a first pivot.

[0010] The auxiliary telescopic rod has its telescopic end locked by a bolt fastening device and the rod body is marked with graduations.

[0011] The tray is a circular disc, and the auxiliary telescopic rods are evenly distributed along the edge of the tray.

[0012] A bubble level is installed on the tray.

[0013] The top of the tray is provided with a circular fixing groove, which is located at the center of the tray, and a prism baffle is connected inside the fixing groove.

[0014] The prism is located in the middle of the prism baffle, and a cylindrical adapter is rotatably provided at the bottom end. The adapter is located in the fixing groove and is fixedly connected to the tray by the prism fastening screw.

[0015] The beneficial effects of this utility model are: it provides a simple and easy-to-operate method for checking the center deviation of pier templates. This utility model is applicable to the center verification of various pier diameters and pier heights by using an auxiliary telescopic rod that is clipped onto the template to adjust the height.

[0016] This invention solves the problem of obstructed view when using a total station to check high-pier formwork by using a lifting auxiliary telescopic rod and a top tray. It also solves the problems of insufficient safety and accuracy when supporting prisms on wooden formwork. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention.

[0018] Figure 2 This is a schematic diagram showing the connection between the tray and the prism of this utility model.

[0019] Figure 3 This is a schematic diagram showing the connection between the auxiliary telescopic rod and the pier column template of this utility model.

[0020] The attached diagram is labeled as follows: 1. Prism; 2. Prism baffle; 3. Bubble level; 4. Tray; 5. Auxiliary telescopic rod; 6. Fixing groove; 71. First pivot; 72. Second pivot; 8. Turning clip; 9. Pier column template; 10. Bolt fastening device; 11. Prism fastening screw. Detailed Implementation

[0021] The technical features of this solution can be clearly explained. The following is a detailed description of the solution through specific implementation methods.

[0022] See Figures 1 to 3As shown, this embodiment is a measuring tool for verifying cylindrical pier templates of highway bridges. It includes three auxiliary telescopic rods 5 fixedly mounted on the pier template 9. The fixed end of each auxiliary telescopic rod 5 is hinged to a turning clip 8 via a second pivot 72. The turning clip 8 is a right-angle clip; its horizontal section fits against the top surface of the pier template 9, and its vertical section fits against the inner side of the pier template 9. The top of the telescopic end of each auxiliary telescopic rod 5 is hinged to the edge of a tray 4 via a first pivot 71. The telescopic end of each auxiliary telescopic rod 5 is locked by a bolt fastening device 10, and the rod body is marked with graduations. The first pivot 71 and the second pivot 72 ensure normal rotation without any lateral wobbling. The tightness can be adjusted by the fastening bolts. The included angle between the three auxiliary telescopic rods 5 is 120°, and the graduations adjusted by the bolt fastening device 10 for all three auxiliary telescopic rods 5 are consistent. This ensures that the tray 4 is level and that the center of the prism 1 coincides with the center of the pier template 9.

[0023] A tray 4 is connected to the top of the telescopic rod 5. The tray 4 is a circular plate. The auxiliary telescopic rods 5 are evenly distributed on the edge of the tray 4. A bubble level 3 is installed on the tray 4. A circular fixing groove 6 is installed on the top of the tray 4. The fixing groove 6 is located in the center of the tray 4. A prism baffle 2 is connected inside the fixing groove 6.

[0024] A prism 1 is provided on the tray 4. The prism 1 is provided in the middle of the prism baffle 2. A cylindrical adapter is provided at the bottom end. The adapter is located in the fixing groove 6 and is fixedly connected to the tray 4 by the prism fastening screw 11.

[0025] In this example, the height of the auxiliary telescopic rod 5 can be adjusted appropriately according to the location of the total station, but it is necessary to ensure that the scale of the telescopic rod is consistent and that the bubble level 3 is centered. During measurement, the direction of the prism 1 should be adjusted appropriately to ensure that it is aligned with the line of sight of the total station.

[0026] In actual use, when checking the pier template 9, the verticality of the pier template 9 is judged by checking whether the bubble level 3 is centered. The total station is used to lay out the centerline of the pier by adjusting the auxiliary telescopic rod 5 and placing the prism 1, thereby judging whether the upper center of the pier template 9 coincides with the lower center of the pier template 9, so as to achieve the purpose of checking the deviation and verticality of the pier template 9.

[0027] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A measuring tool for verifying the template of cylindrical piers for highway bridges, characterized in that, Includes auxiliary telescopic rods (5) fixedly installed on the pier column template (9), the auxiliary telescopic rods (5) are provided in several pieces, and the top end is connected to a tray (4); A prism (1) is provided on the tray (4).

2. The measuring tool for verifying the cylindrical pier template of highway bridges according to claim 1, characterized in that, The bottom of the fixed end of the auxiliary telescopic rod (5) is hinged to a pivot clip (8) via a second pivot (72). The turning clip (8) is a right-angle clip, with the horizontal section fitting to the top surface of the pier template (9) and the vertical section fitting to the inner side of the pier template (9).

3. The measuring tool for verifying the cylindrical pier template of highway bridges according to claim 2, characterized in that, The top of the telescopic end of the auxiliary telescopic rod (5) is hinged to the edge of the tray (4) via the first pivot (71); The auxiliary telescopic rod (5) is locked at the telescopic end by a bolt fastening device (10), and the rod body is marked with graduations.

4. The measuring tool for verifying the cylindrical pier template of highway bridges according to claim 1, characterized in that, The tray (4) is a circular disc, and the auxiliary telescopic rods (5) are evenly distributed on the edge of the tray (4).

5. The measuring tool for verifying the cylindrical pier template of highway bridges according to claim 1, characterized in that, A bubble level (3) is installed on the tray (4).

6. The measuring tool for verifying the cylindrical pier template of highway bridges according to claim 1, characterized in that, The top of the tray (4) is provided with a circular fixing groove (6), the fixing groove (6) is located at the center of the tray (4), and a prism baffle (2) is connected inside the fixing groove (6).

7. The measuring tool for verifying the cylindrical pier template of highway bridges according to claim 6, characterized in that, The prism (1) is provided in the middle of the prism baffle (2), and a cylindrical adapter is provided at the bottom. The adapter is located in the fixing groove (6) and is fixedly connected to the tray (4) by the prism fastening screw (11).

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