A continuous beam pre-buried hole positioning device

Abstract

The utility model relates to bridge construction frock technical field, concretely discloses a continuous beam pre -buried hole positioning device. Its including device main body, device main body includes 2 parallelly arranged and the cross section is the U-shaped guide plate, is equipped with a plurality of along the guide plate length direction setting guide hole at the guide plate, a plurality of guide holes interval setting along the guide plate length direction, the sleeve of being equipped with passing through the guide hole of two guide plates is equipped with the limiting mechanism at the sleeve passing through the guide hole, and the limiting mechanism is used for fixing after the sleeve moves in the guide hole. Can ensure that the bellows installation position is correct, guarantees the use function, structural safety and the smooth progress of subsequent construction of bridge.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction tooling technology, specifically to a positioning device for pre-embedded holes in continuous beams. Background Technology

[0002] In bridge engineering, especially in the construction of continuous concrete beams, it is often necessary to reserve a large number of holes in the flanges, webs, or top slabs of the beam for the installation of drainage pipes, application of prestressing, system conversion, or laying of electromechanical pipelines. The planar position, verticality, and spacing accuracy of these embedded holes directly affect the bridge's functionality, structural safety, and the smooth progress of subsequent construction.

[0003] Currently, the positioning of these types of pre-embedded holes on construction sites mainly adopts the following two traditional methods. One is the manual assembly method: construction workers mark the hole positions one by one on the template according to the survey and layout, and then temporarily fix the corrugated pipe to the steel cage or template by binding it with iron wire. This method has some drawbacks: First, each hole position needs to be measured and positioned individually, which is extremely inefficient and prone to human operation and cumulative errors, resulting in large hole position deviations and inconsistent spacing. Second, binding and fixing in a complex steel reinforcement network results in poor firmness. Under the huge impact and vibration of concrete pouring and vibration, the pre-embedded pipe is prone to displacement, tilting or even floating, resulting in hole formation failure. The second method is the simple overall support method: In order to improve efficiency, some construction parties will pre-weld a simple support using profiles such as channel steel, and initially fix several pre-embedded pipes on the support before hoisting the whole structure. However, once such a support is welded, the relative positions of all pre-embedded pipes are fixed and cannot be adjusted. When the distribution of steel bars on site conflicts with the pre-embedded hole positions, the entire support will be scrapped or need to be destructively cut and modified because it cannot adapt. It has poor flexibility and will cause delays in the construction period and waste of materials. Utility Model Content

[0004] This utility model provides a positioning device for pre-embedded holes in continuous beams, which can overcome some or all the defects of the prior art.

[0005] According to the present invention, a continuous beam pre-embedded hole positioning device includes: a device body, the device body including two parallel guide plates with a U-shaped cross-section, a plurality of guide holes arranged along the length direction of the guide plates, the plurality of guide holes being spaced apart along the length direction of the guide plates; a sleeve passing through the guide holes on the two guide plates is provided at the guide holes, and a limiting mechanism is provided at the point where the sleeve passes through the guide holes, the limiting mechanism being used to fix the sleeve after it moves within the guide holes.

[0006] With this invention, before the continuous beam is cast, the construction workers install the main body of the device at the steel reinforcement cage. First, the corrugated pipe is placed on the lower end of the sleeve, so that the top of the corrugated pipe abuts against the lower guide plate of two parallel guide plates. Then, the lower guide plate, corrugated pipe and sleeve are tied to the steel reinforcement cage with steel wire rope, so that the upper guide plate is exposed in the steel reinforcement cage. During the tying process, when the construction workers find that the distribution of steel reinforcement on site conflicts with the pre-embedded hole position, the construction workers turn the nut on the threaded column to loosen the nut's abutment against the sliding plate, and then push the sleeve along the guide hole to the accurate position. After the position is adjusted, the nut is tightened again to press the sliding plate and fix the sleeve, so that the corrugated pipe can be smoothly inserted into the steel reinforcement cage. After the binding is completed, concrete is poured into the steel reinforcement cage and vibrated. Before the concrete sets, the construction workers measure whether the corrugated pipe is misaligned. If misalignment is found, the construction workers repeat the above operation to adjust the position of the sleeve and the corrugated pipe so that the corrugated pipe returns to the correct position. After the position is adjusted, the wire rope is removed and the main body of the device is pulled out. Compared with the existing technology, when the distribution of steel reinforcement on site conflicts with the pre-embedded hole position, the construction workers can adjust the position of the sleeve so that the corrugated pipe can be installed into the steel reinforcement cage. This eliminates the need for the entire support to be scrapped or to be cut and modified, saving materials and construction time and improving construction efficiency. When the corrugated pipe is misaligned after concrete vibration, construction workers can adjust the position of the sleeve to return the corrugated pipe to the correct position; thus ensuring the correct installation position of the corrugated pipe, guaranteeing the bridge's functionality, structural safety, and the smooth progress of subsequent construction.

[0007] Preferably, the limiting mechanism includes a sliding plate with a U-shaped cross-section, a welding hole corresponding to the guide hole and through which a sleeve passes, and a fixed connection between the sleeve and the welding hole; a limiting hole along the length of the sliding plate is provided on the side wall of the sliding plate; a threaded post through the limiting hole is provided on the side wall of the guide plate; and a nut that is threadedly engaged with the threaded post and pushes the guide plate towards the guide plate is provided at the threaded post.

[0008] With this invention, the sliding plate is fitted onto the threaded column through the limiting hole on its side wall. This elongated hole allows the sliding plate, together with the sleeve, to slide along the length of the guide plate. The position of the sleeve can be adjusted to any point between the two guide holes, not just a preset fixed position. When encountering a steel bar obstruction, it can be easily fine-tuned to avoid it, providing high flexibility. Once the position is adjusted, simply tighten the nut. The huge clamping force generated by the threads presses the sliding plate tightly against the side wall of the guide plate, achieving complete fixation through friction, effectively preventing any displacement during concrete pouring.

[0009] Preferably, both the guide plate and the sliding plate are made of channel steel.

[0010] This invention utilizes the natural U-shaped structure of channel steel to form a sliding locking system that is highly rigid, provides accurate guidance, is easy to process, and is low in cost, thus fundamentally ensuring the positioning accuracy and anti-interference capability of the pre-embedded holes.

[0011] Preferably, the threaded post is made of threaded steel.

[0012] This invention provides a lightweight yet strong threaded steel structure, thereby increasing the service life of the device.

[0013] Preferably, the threaded column and the guide plate are welded together.

[0014] This invention ensures a secure welded connection, preventing the threaded column from breaking off from the guide plate at the connection point.

[0015] Preferably, a corrugated pipe fitted onto a sleeve is provided below the guide plate.

[0016] With this invention, a corrugated pipe is fitted onto a sleeve, and a steel wire rope is tied to the upper and lower ends of the corrugated pipe. The upper end of the corrugated pipe exposes the steel reinforcement skeleton. After vibration is completed, the construction workers cut the steel wire rope connected to the upper end of the corrugated pipe and pull out the sleeve inside the corrugated pipe to complete the positioning of the corrugated pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main body of the device in Example 1.

[0018] Figure 2 This is a schematic diagram of the sleeve and the limiting mechanism working together in Example 1.

[0019] Figure 3 This is a schematic diagram of the limiting mechanism in Example 1.

[0020] Figure 4 This is a schematic diagram of the guide plate in Example 1.

[0021] Figure 5 This is an exploded view of the main body of the device in Example 1.

[0022] Figure 6 This is a schematic diagram of the corrugated pipe installation position in Example 1. Detailed Implementation

[0023] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0024] Example 1 like Figure 1-6As shown, this embodiment provides a continuous beam pre-embedded hole positioning device, including a device body 100. The device body 100 includes two parallel guide plates 110 with a U-shaped cross-section. The guide plates 110 are provided with a plurality of guide holes 410 arranged along the length direction of the guide plates 110. The plurality of guide holes 410 are spaced apart along the length direction of the guide plates 110. A sleeve 120 is provided at the guide hole 410 and passes through the guide hole 410 on the two guide plates 110. A limiting mechanism 220 is provided at the point where the sleeve 120 passes through the guide hole 410. The limiting mechanism 220 is used to fix the sleeve 120 after it moves within the guide hole 410.

[0025] In this embodiment, before the continuous beam is cast, the construction workers install the main body 100 of the device at the steel reinforcement cage. First, the corrugated pipe 610 is placed on the lower end of the sleeve 120, so that the top of the corrugated pipe 610 abuts against the lower guide plate 110 of the two parallel guide plates 110. Then, the lower guide plate 110, the corrugated pipe 610 and the sleeve 120 are tied to the steel reinforcement cage with steel wire rope, so that the upper guide plate 110 is exposed in the steel reinforcement cage. During the tying process, when the construction workers find that the distribution of steel reinforcement on site conflicts with the pre-embedded hole position, the construction workers turn the nut 430 on the threaded column 440 to loosen the nut 430 from the sliding plate 320. Then, the sleeve 120 is pushed along the guide hole 410 to the accurate position. After the position is adjusted, the nut 430 is tightened again to press the sliding plate 320 and fix the sleeve 120, so that the corrugated pipe 610 can be smoothly inserted into the steel reinforcement cage. After the binding is completed, concrete is poured into the steel reinforcement cage and vibrated. Before the concrete sets, the construction workers measure whether the corrugated pipe 610 is misaligned. If misalignment is found, the construction workers repeat the above operation to adjust the position of the sleeve 120 and the corrugated pipe 610 so that the corrugated pipe 610 returns to the correct position. After the position adjustment is completed, the wire rope is removed and the main body 100 of the device is pulled out. Compared with the existing technology, when the distribution of steel reinforcement on site conflicts with the pre-embedded hole position, the construction workers can adjust the position of the sleeve 120 so that the corrugated pipe 610 can be installed into the steel reinforcement cage. This eliminates the need for the entire support to be scrapped or to be cut and modified, saving materials and construction time and improving construction efficiency. When the corrugated pipe 610 is in the correct position after the concrete is vibrated, the construction personnel can adjust the position of the sleeve 120 to return the corrugated pipe 610 to the correct position; thereby ensuring that the corrugated pipe 610 is installed in the correct position, ensuring the bridge's functionality, structural safety and the smooth progress of subsequent construction.

[0026] In this embodiment, the limiting mechanism 220 includes a sliding plate 320 with a U-shaped cross-section. The sliding plate 320 is provided with a welding hole 310 corresponding to the guide hole 410 and through which the sleeve 120 passes. The sleeve 120 is fixedly connected to the welding hole 310. The side wall of the sliding plate 320 is provided with a limiting hole 330 along the length direction of the sliding plate 320. The side wall of the guide plate 110 is provided with a threaded post 440 passing through the limiting hole 330. The threaded post 440 is provided with a nut 430 that is threadedly engaged with the threaded post 440 and pushes the guide plate 110 towards the guide plate 110.

[0027] In this embodiment, the sliding plate 320 is fitted onto the threaded post 440 through the limiting hole 330 on its side wall. This elongated hole allows the sliding plate 320, together with the sleeve 120, to slide along the length of the guide plate 110. The position of the sleeve 120 can be adjusted to any point between the two guide holes 410, not just a preset fixed position. When encountering a steel bar obstruction, it can be easily fine-tuned to avoid it, providing high flexibility. Once the position is adjusted to the correct position, simply tighten the nut 430. The huge clamping force generated by the threads presses the sliding plate 320 tightly against the side wall of the guide plate 110, achieving complete fixation through friction, effectively preventing any displacement during concrete pouring.

[0028] In this embodiment, both the guide plate 110 and the sliding plate 320 are made of channel steel.

[0029] In this embodiment, the natural U-shaped structure of channel steel is used to form a sliding locking system that is highly rigid, accurately guided, easy to process, and low in cost, which fundamentally ensures the positioning accuracy and anti-interference capability of the pre-embedded hole.

[0030] In this embodiment, the threaded post 440 is made of threaded steel.

[0031] Through this embodiment, the threaded steel structure is relatively strong, which increases the service life of the device.

[0032] In this embodiment, the threaded post 440 is welded to the guide plate 110.

[0033] In this embodiment, the welded connection is secure, preventing the threaded post 440 from breaking off from the guide plate 110 at the connection point.

[0034] In this embodiment, a corrugated pipe 610 fitted onto a sleeve 120 is provided below the guide plate 110.

[0035] In this embodiment, the corrugated pipe 610 is fitted onto the sleeve 120, and the steel wire rope is tied to the upper and lower ends of the corrugated pipe 610. The upper end of the corrugated pipe 610 exposes the steel reinforcement skeleton. After vibration is completed, the construction personnel cut the steel wire rope connected to the upper end of the corrugated pipe 610 and pull out the sleeve 120 inside the corrugated pipe 610 to complete the positioning of the corrugated pipe 610.

[0036] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0037] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A positioning device for pre-embedded holes in a continuous beam, characterized in that: The device includes a main body (100), which includes two parallel guide plates (110) with a U-shaped cross-section. The guide plates (110) are provided with a plurality of guide holes (410) arranged along the length of the guide plates (110), and the plurality of guide holes (410) are spaced apart along the length of the guide plates (110). A sleeve (120) is provided at the guide hole (410) and passes through the guide hole (410) on the two guide plates (110). A limiting mechanism (220) is provided at the point where the sleeve (120) passes through the guide hole (410), and the limiting mechanism (220) is used to fix the sleeve (120) after it moves in the guide hole (410).

2. The continuous beam pre-embedded hole positioning device according to claim 1, characterized in that: The limiting mechanism (220) includes a sliding plate (320) with a U-shaped cross-section. The sliding plate (320) is provided with a welding hole (310) corresponding to the guide hole (410) and through which the sleeve (120) passes. The sleeve (120) is fixedly connected to the welding hole (310). The side wall of the sliding plate (320) is provided with a limiting hole (330) along the length direction of the sliding plate (320). The side wall of the guide plate (110) is provided with a threaded post (440) passing through the limiting hole (330). The threaded post (440) is provided with a nut (430) that is threadedly engaged with the threaded post (440) and pushes the guide plate (110) towards the guide plate (110).

3. The continuous beam pre-embedded hole positioning device according to claim 2, characterized in that: Both the guide plate (110) and the sliding plate (320) are made of channel steel.

4. The continuous beam pre-embedded hole positioning device according to claim 2, characterized in that: The threaded column (440) is made of threaded steel.

5. A continuous beam pre-embedded hole positioning device according to claim 2, characterized in that: The threaded column (440) is welded to the guide plate (110).

6. A continuous beam pre-embedded hole positioning device according to claim 2, characterized in that: A bellows (610) is provided below the guide plate (110) and fitted onto the sleeve (120).

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