Device for improving accurate positioning of bridge padstone pre-embedded anchor hole

Abstract

The utility model discloses a device for improving accurate positioning of a bridge padstone pre-embedded anchor hole, which relates to the field of bridge construction equipment and comprises a rectangular frame, a pull rod, a steel cylinder, a plurality of telescopic square tube components and a bubble level, the rectangular frame is arranged at the top of the telescopic square tube components and is supported by the telescopic square tube components, and the bubble level is arranged in the rectangular frame. First positioning holes are formed in the periphery of the rectangular frame, one end of the pull rod penetrates through the first positioning holes to be fixedly connected with the rectangular frame, the other end of the pull rod is fixedly connected with the steel cylinder, and the bubble level meters are symmetrically arranged at the top of the rectangular frame. The positioning device is simple in structure, convenient to use and capable of effectively improving the positioning accuracy of the padstone pre-embedded anchor bolt hole.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction equipment, in particular to a device for improving the precise positioning of embedded anchor bolt holes in bridge bearing pads. Background Technique

[0002] During the construction of bridge bearings, it is necessary to set support bearing pads at the top of piers and abutments. The bridge bearings are connected to the lower structure through the reserved anchor bolt holes set in the bearing pads. Therefore, the hole positions of the reserved anchor bolt holes must be accurate. If the position deviation of the reserved holes is large, it may cause the anchor bolts to be unable to be installed.

[0003] At present, in the design of pier and abutment bearing pads for railway and highway bridges, the practice of reserving bearing anchor bolt holes is generally adopted. Specifically, when implementing, rod-shaped objects such as PVC pipes or logs are usually embedded in the concrete, and then taken out after the concrete solidifies to form the required anchor bolt holes. However, this method has the problem of difficult positioning because the embedded objects, as single entities, are prone to shift during the process of pouring concrete and vibrating, resulting in inaccurate positions of the bearing anchor bolt holes; and the sizes of the four anchor rods in the bearing design are fixed. If the positions of the reserved anchor bolt holes are inaccurate, then the embedded holes must be reprocessed before the beam erection, which not only increases the construction difficulty but also may damage the steel bar structure in the bearing pad, thereby affecting the overall quality of the bearing pad and the bearing capacity of the bridge.

[0004] Therefore, how to develop a device for improving the precise positioning of embedded anchor bolt holes in bridge bearing pads, with a simple structure and convenient use, and can effectively improve the positioning accuracy of the embedded anchor bolt holes in the bearing pad, has become a technical problem that needs to be solved urgently by those skilled in the art. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for improving the precise positioning of embedded anchor bolt holes in bridge bearing pads, with a simple structure and convenient use, and can effectively improve the positioning accuracy of the embedded anchor bolt holes in the bearing pad.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A device for improving the precise positioning of embedded anchor bolt holes in bridge bearing pads of the utility model includes a rectangular frame, a pull rod, a steel cylinder, a telescopic square pipe assembly and a bubble level. The rectangular frame is arranged on the top of the telescopic square pipe assembly and is supported by a plurality of the telescopic square pipe assemblies. First positioning holes are opened on the four sides of the rectangular frame. One end of the pull rod passes through the first positioning hole and is fixedly connected with the rectangular frame, and the other end of the pull rod is fixedly connected with the steel cylinder. A plurality of the bubble levels are symmetrically arranged on the top of the rectangular frame.

[0008] Preferably, a plurality of second positioning holes are formed in the side wall of the steel cylinder and are evenly distributed in a circular shape, and the pull rod passes through the second positioning holes and is fixedly connected to the steel cylinder.

[0009] Preferably, the first positioning hole is a long strip-shaped hole, and the second positioning hole is a circular hole.

[0010] Preferably, the telescopic square pipe assembly includes a first telescopic square pipe, a second telescopic square pipe and a base. The base is arranged at the bottom of the first telescopic square pipe. The second telescopic square pipe is sleeved on the first telescopic square pipe in a sliding manner, and the rectangular frame is arranged at the top of the second telescopic square pipe.

[0011] Preferably, the telescopic square pipe assembly further includes a positioning bolt, which is threadedly connected to the top of the first telescopic square pipe and is used for abutting and positioning with the second telescopic square pipe.

[0012] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0013] 1) The setting of the telescopic square pipe assembly facilitates the horizontal adjustment operation of the rectangular frame, thereby ensuring the verticality of the steel cylinder and significantly improving the position accuracy of the reserved anchor bolt holes. At the same time, this design also enables the device to be stably placed on the cross slope or the uneven concrete surface of the top surface of the capping beam, greatly enhancing the terrain adaptability of the device. In addition, the setting of the telescopic square pipe assembly also facilitates the user to adjust the depth of the embedded anchor bolt holes of the bearing pad stone.

[0014] 2) The setting of the bubble level. A plurality of bubble levels are symmetrically installed on the top of the rectangular frame and are used to detect whether the rectangular frame is in a horizontal state, thereby ensuring the verticality of the steel cylinder.

[0015] 3) The setting of the first positioning hole and the pull rod facilitates the user to accurately position the steel cylinder horizontally and longitudinally according to the position of the anchor bolt hole, and can effectively improve the positioning accuracy of the steel cylinder.

[0016] Generally speaking, the setting of the telescopic square pipe assembly of the present utility model not only facilitates the horizontal adjustment of the rectangular frame, ensures the verticality of the steel cylinder, significantly improves the position accuracy of the reserved anchor bolt holes, but also enables the device to be stably placed on the cross slope or the uneven concrete surface of the top surface of the capping beam, greatly enhancing the terrain adaptability. In addition, the bubble levels symmetrically installed on the top of the device are used to detect the horizontal state of the rectangular frame, further ensuring the verticality of the steel cylinder. The setting of the first positioning hole and the pull rod facilitates the user to accurately position the steel cylinder and effectively improve the positioning accuracy of the steel cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model with reference to the drawings.

[0018] Figure 1 Schematic diagram of the overall structure of a device for improving the precise positioning of embedded anchor bolt holes in bridge bearing pads according to the present utility model;

[0019] Figure 2 Top view of the overall structure of the present utility model.

[0020] Explanation of reference numerals: 1, rectangular frame; 2, pull rod; 3, steel cylinder; 4, telescopic square tube assembly; 41, first telescopic square tube; 42, second telescopic square tube; 43, base; 5, bubble level; 6, first positioning hole. Specific embodiments

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] As Figure 1-2 shown, a device for improving the precise positioning of embedded anchor bolt holes in bridge bearing pads includes a rectangular frame 1, a pull rod 2, a steel cylinder 3, a telescopic square tube assembly 4 and a bubble level 5. The rectangular frame 1 is arranged on the top of the telescopic square tube assembly 4 and is supported by a plurality of the telescopic square tube assemblies 4. First positioning holes 6 are formed in the four sides of the rectangular frame 1. One end of the pull rod 2 passes through the first positioning hole 6 and is fixedly connected to the rectangular frame 1, and the other end of the pull rod 2 is fixedly connected to the steel cylinder 3. A plurality of the bubble levels 5 are symmetrically arranged on the top of the rectangular frame 1.

[0023] Specifically, in this embodiment, the number of the bubble levels 5 is set to 2, which are symmetrically installed on the top of the rectangular frame 1 to detect whether the rectangular frame 1 is in a horizontal state, so as to ensure the perpendicularity of the steel cylinder 3. In addition, the user can also increase the number of the bubble levels 5 to four according to actual needs and distribute them symmetrically on the four sides of the top of the rectangular frame 1 to further improve the accuracy and reliability of detecting the levelness of the rectangular frame 1.

[0024] Specifically, a plurality of second positioning holes are formed in the side wall of the steel cylinder 3 and are evenly distributed in a circular shape. The pull rod 2 passes through the second positioning hole and is fixedly connected to the steel cylinder 3. In one specific embodiment, four second positioning holes are formed, and the included angle between two adjacent ones is 90°.

[0025] Specifically, the first positioning hole 6 is an elongated hole, and the second positioning hole is a circular hole.

[0026] Specifically, in this embodiment, two second positioning holes are vertically opened on the side wall of the steel cylinder 3, which facilitates precise lateral and longitudinal positioning through the two pull rods 2, improving the positioning accuracy of the embedded anchor bolt holes. At the same time, threads are provided at both ends of the pull rod 2, and the pull rod 2 is tightly connected to the steel cylinder 3 and the rectangular frame 1 through nuts.

[0027] Specifically, in order to facilitate the user to flexibly adjust the horizontal orientation of the steel cylinder 3 according to the designed position of the anchor bolt hole, the pull rod 2 in this embodiment adopts a design with a freely telescopic length. In addition, this kind of pull rod with adjustable length is an existing structure, and specific reference can be made to the patent (patent number: 202120203854.5), which will not be elaborated here.

[0028] Specifically, in this embodiment, the steel cylinder 3 is used as the embedded part of the anchor bolt hole and buried in the concrete. In order to ensure that the steel cylinder 3 can be smoothly pulled out after the initial setting of the concrete, a release agent is applied to the contact surface part between the steel cylinder 3 and the concrete; in addition, the four steel cylinders 3 in this embodiment form a stable overall structure through the pull rods 2 and the rectangular frame 1, greatly improving its fixing stability in the concrete and providing a strong guarantee for subsequent construction.

[0029] Specifically, the telescopic square pipe assembly 4 includes a first telescopic square pipe 41, a second telescopic square pipe 42 and a base 43. The base 43 is arranged at the bottom of the first telescopic square pipe 41, the second telescopic square pipe 42 is slidably sleeved and connected with the first telescopic square pipe 41, and the rectangular frame 1 is arranged at the top of the second telescopic square pipe 42. When in use, the length of the second telescopic square pipe 42 sleeved and overlapped with the first telescopic square pipe 41 is adjusted so that the height of the rectangular frame 1 changes synchronously.

[0030] Specifically, the telescopic square pipe assembly 4 further includes a positioning bolt, and the positioning bolt is threadedly connected to the top of the first telescopic square pipe 41 and is used to abut and position the second telescopic square pipe 42.

[0031] Specifically, the setting of the telescopic square pipe assembly 4 facilitates the horizontal adjustment operation of the rectangular frame 1, thereby ensuring the perpendicularity of the steel cylinder 3 and significantly improving the position accuracy of the reserved anchor bolt hole; at the same time, this design also enables the device to be stably placed in places where the concrete on the top surface of the cross slope or capping beam is uneven, greatly enhancing the terrain adaptability of the device.

[0032] Specifically, the setting of the telescopic square pipe assembly 4 also facilitates the user to adjust the depth of the embedded anchor bolt hole of the bearing pad stone.

[0033] The using process of the utility model is as follows:

[0034] First, before the bridge bearing padstone concrete is poured, the surveyors shall be responsible for the layout work of the bearing padstone sidelines and centerlines, accurately pop the cross centerlines of each bearing padstone using a chalk line, and accurately mark the positions of the anchor bolt holes accordingly;

[0035] Secondly, after the bearing padstone formwork is installed, place this device above the bearing padstone formwork, and determine the depth of the bearing padstone anchor bolt holes by adjusting the telescopic lengths of the first telescopic square pipe 41 and the second telescopic square pipe 42; at the same time, conduct the horizontal adjustment of the rectangular frame 1 to ensure that the steel cylinder 3 remains vertical, with the bubble in the spirit level 5 centered as the adjustment standard;

[0036] Then, according to the positions of the anchor bolt holes marked by the previous layout, adjust the length of the pull rod 2 and its position in the first positioning hole 6, so as to complete the fine adjustment of the front, rear, left and right positions of the steel cylinder 3. After the position of the steel cylinder 3 is determined to be correct, tighten and fix it with nuts to realize the firm connection between the pull rod 2 and the rectangular frame 1;

[0037] Finally, pour the concrete into the bearing padstone formwork. After the concrete begins to set, remove this device and take out the steel cylinder 3.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] The embodiments described above are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for improving the accurate positioning of pre-embedded anchor holes in bridge pad stones, characterized in that: The invention comprises a rectangular frame (1), a pull rod (2), a steel cylinder (3), a telescopic square tube assembly (4) and a bubble level (5); the rectangular frame (1) is arranged on the top of the telescopic square tube assembly (4) and is supported by a plurality of the telescopic square tube assemblies (4); first positioning holes (6) are provided on all four sides of the rectangular frame (1); one end of the pull rod (2) passes through the first positioning hole (6) and is fastened to the rectangular frame (1); the other end of the pull rod (2) is fastened to the steel cylinder (3); and a plurality of bubble levels (5) are symmetrically arranged on the top of the rectangular frame (1).

2. The device for improving the accurate positioning of pre-embedded anchor holes in bridge shims according to claim 1 is characterized in that: A plurality of second positioning holes are provided on the side wall of the steel cylinder (3) and are evenly distributed in a circular shape. The pull rod (2) passes through the second positioning holes and is firmly connected to the steel cylinder (3).

3. The device for improving the accurate positioning of pre-embedded anchor holes in bridge pad stones according to claim 2 is characterized in that: The first positioning hole (6) is a long strip hole, and the second positioning hole is a circular hole.

4. The device for improving the accurate positioning of pre-embedded anchor holes in bridge shims according to claim 1 is characterized in that: The telescopic square tube assembly (4) comprises a first telescopic square tube (41), a second telescopic square tube (42) and a base (43); the base (43) is arranged at the bottom of the first telescopic square tube (41); the second telescopic square tube (42) is slidably connected to the first telescopic square tube (41); and the rectangular frame (1) is arranged at the top of the second telescopic square tube (42).

5. The device for improving the accurate positioning of pre-embedded anchor holes in bridge pad stones according to claim 4 is characterized in that: The telescopic square tube assembly (4) further comprises a positioning bolt, which is threadedly connected to the top of the first telescopic square tube (41) and is used for abutting and positioning with the second telescopic square tube (42).

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