Tunnel power supply contact net embedded channel checking and correcting device

Abstract

The utility model relates to the technical field of pre-buried channel installation, and provides a tunnel power supply contact net pre-buried channel checking and correcting device which comprises an arch support, an arch frame used for being connected with a channel is arranged on the arch support, the arch frame comprises an arch plate, the arch plate is connected with a groove opening of the channel in a matched and clamped mode, and the upper end of the arch plate is matched with a correcting plate in a buckled mode. The shape correcting plate is clamped and propped against the inner wall of the channel, a base surface baffle propped against the end part of the channel is arranged at the end part of the arch plate, a limiting groove is formed in the base surface baffle, and the inner wall of the limiting groove is propped against the outer edge of the end part of the channel, so that the channel is effectively checked and corrected through the matching of the arch plate, the shape correcting plate and the base surface baffle, and the operation is simple and convenient; and the measurement precision and efficiency of detection are improved.

Description

Technical Field

[0001] This utility model relates to the field of pre-embedded channel installation technology, and more specifically, to a device for inspecting and correcting pre-embedded channels for tunnel power supply contact networks. Background Technology

[0002] The installation of contact wire suspension columns and shoulder frames in tunnels usually adopts the pre-embedded channel scheme. Two channels are pre-embedded in the secondary lining of the tunnel and connected to the base flange of the contact wire suspension column and shoulder frame by T-bolts to suspend the contact wire and additional conductors and other equipment.

[0003] Pre-embedded channels may become abnormally twisted during transportation, therefore it is necessary to inspect and correct them before installation. Currently, most operators use visual inspection and a steel ruler to check the curvature and length of the channels. This method suffers from low measurement accuracy, low efficiency, and is time-consuming and labor-intensive. Furthermore, existing equipment cannot effectively correct pre-embedded channels with abnormal twisting. Utility Model Content

[0004] The purpose of this invention is to provide a device for inspecting and correcting pre-embedded channels in tunnel power supply contact networks, which solves the problems of low measurement accuracy and efficiency of pre-embedded channels in the prior art and the inability to effectively correct pre-embedded channels with abnormal distortion.

[0005] This utility model is achieved through the following technical solution: a tunnel power supply contact network pre-embedded channel inspection and correction device, including an arch seat, an arched frame for connecting the channel is provided on the arch seat, the arched frame includes an arch plate, the arch plate is engaged with the channel opening, a straightening plate is snapped on the upper end of the arch plate, the straightening plate is engaged with the inner wall of the channel, and a base baffle is provided at the end of the arch plate to abut against the end of the channel, a limiting groove is opened on the base baffle, and the inner wall of the limiting groove abuts against the outer edge of the channel end.

[0006] Furthermore, at least two arched frames are slidably connected parallel to each other on the arch base.

[0007] Preferably, the arch seat is provided with a slide rail that is slidably connected to the arch plate, and the slide rail is provided with a locking component for locking the spacing between adjacent arch frames.

[0008] Preferably, the locking assembly includes a spacer block disposed between adjacent arched frames and abutment blocks disposed on the outer sides of adjacent arched frames, the abutment blocks being fixed relative to the slide rail by locking bolts.

[0009] Preferably, each side of the arch seat is provided with a limiting strip that abuts against the end of the arch plate to limit the linear sliding of the arch frame.

[0010] Furthermore, the arch base is provided with a light-reducing hole.

[0011] Furthermore, the arch seat is mounted on the lifting platform.

[0012] This utility model has at least the following advantages and beneficial effects:

[0013] (1) By combining the arch plate, the straightening plate and the base plate, the channel can be effectively inspected and corrected. The operation is simple and convenient, which improves the measurement accuracy and efficiency of the inspection.

[0014] (2) Multiple arched frames are connected in parallel by sliding on the arch seat, while multiple channels are inspected and corrected. The spacing of the channel group is fixed by locking components, which facilitates positioning welding. Attached Figure Description

[0015] Figure 1 This utility model provides a structural schematic diagram of a tunnel power supply contact network pre-embedded channel inspection and correction device.

[0016] Figure 2 A top view of a tunnel power supply contact network pre-embedded channel inspection and correction device provided by this utility model.

[0017] Figure 3 A side view of a tunnel power supply contact network pre-embedded channel inspection and correction device provided by this utility model.

[0018] Reference numerals: 1-arch seat, 10-lightening hole, 11-slide rail, 12-limiting strip, 2-arch frame, 21-arch plate, 22-correcting plate, 23-base baffle, 230-limiting groove, 3-locking assembly, 31-distance block, 32-abutment block, 33-locking bolt. Detailed Implementation

[0019] The specific implementation method is described below with reference to the accompanying drawings.

[0020] Example

[0021] like Figures 1-3As shown in this embodiment, a device for inspecting and correcting pre-embedded channels for tunnel power supply contact networks is disclosed. The device includes an arch base 1, on which an arched frame 2 for connecting the channel is provided. The arched frame 2 includes an arch plate 21, which engages with the channel opening. A straightening plate 22 is snapped onto the upper end of the arch plate 21, engaging with the inner wall of the channel. A base baffle 23 abuts against the end of the channel at the end of the arch plate 21. A limiting groove 230 is formed on the base baffle 23, and the inner wall of the limiting groove 230 abuts against the outer edge of the channel end. Specifically, the pre-embedded channel for the tunnel arch power supply contact network has a T-shaped groove that engages with a T-bolt. Before inspecting the channel, first attach the orthopedic plate 22 to the arch plate 21, then insert the arch plate 21 and the orthopedic plate 22 into the end of the channel from the end away from the base baffle 23, and gradually move the channel along the length of the arch plate 21 until the end of the channel abuts against the base baffle 23. If the channel meets the requirements of having one end of its outer edge tightly abutting against the inner wall of the limiting groove 230, and the other end of its inner wall fitting against the straightening plate 22 and the straightening plate 22 tightly engaging with the arch plate 21, then the channel curvature is qualified, and the length of the channel can be easily measured. If the channel meets the requirements of having one end of its outer edge tightly abutting against the inner wall of the limiting groove 230, and the other end of its inner wall fitting against the straightening plate 22, but the fit between the straightening plate 22 and the arch plate 21 shows tilting along the width direction of the arch plate 21, then the channel may have tilting deviation or deviation along the length direction of the arch plate 21. If the channel meets the requirements of having one end of its outer edge tightly abutting against the inner wall of the limiting groove 230, and the other end of its inner wall fitting against the straightening plate 22, but the straightening plate 22 cannot tightly engage with the arch plate 21, and a warping phenomenon occurs, then the channel curvature has a deviation. When a deviation is found during inspection, the channel steel is corrected by applying pressure with tools. It is simple and convenient to operate, can intuitively reflect the condition of the channel, and can effectively correct the channel, thus improving the measurement accuracy and efficiency of the detection.

[0022] Furthermore, in specific implementations, at least two arched frames 2 are slidably and parallelly connected to the arch seat 1 provided in this embodiment of the invention. This allows for simultaneous inspection and correction of the channel at different positions on the arch seat 1, thereby improving work efficiency.

[0023] Preferably, the arch base 1 is provided with a slide rail 11 that is slidably connected to the arch plate 21, and the slide rail 11 is provided with a locking component 3 for locking the distance between adjacent arch frames 2. Specifically, the locking component 3 includes a spacer block 31 disposed between adjacent arch frames 2 and an abutment block 32 disposed on the outer side of adjacent arch frames 2 respectively. The abutment block 32 is fixed to the slide rail 11 by locking bolts 33. It should be noted that the channels are usually pre-embedded in pairs. Before the channel group is installed, the two channels need to be positioned and welded together by threaded steel. The weld points are all located at the anchor rod bends on the back of the channel steel, and zinc spraying is performed for corrosion protection after the welding cools. By setting the locking component 3, the relative position of the channels can be effectively fixed, which facilitates positioning welding and ensures that the distance between the channel groups does not deviate. In addition, by replacing spacer blocks 31 of different lengths, the distance between the channels can be adjusted, which improves the flexibility of the device.

[0024] Preferably, each side of the arch base 1 is provided with a limiting strip 12 that abuts against the end of the arch plate 21 to limit the linear sliding of the arch frame 2. This effectively controls the parallelism deviation of the channel assembly and avoids accidental movement during the calibration process, thereby improving work safety and measurement accuracy.

[0025] Furthermore, in specific implementation, the arch seat 1 provided in this embodiment of the present invention has a weight-reducing hole 10. This effectively reduces the weight of the device, facilitates handling and operation, and also reduces the impact of the device's weight burden, thus improving overall flexibility and ease of operation. Additionally, the arch seat 1 is mounted on a lifting platform. It should be noted that after the channel steel is inspected and corrected, the straightening plate 22 is pulled out from one end. At this time, the channel steel is held in place by the arch plate 21, and its position is relatively fixed. Then, the channel steel is transported and lifted to the installation position by the lifting platform for installation. During installation, interference between the anchor rods of the channel back plate and the secondary lining reinforcement should be avoided, and attention should be paid to controlling the deviation of the channel embedding depth.

Claims

1. A device for inspecting and correcting pre-embedded channels in tunnel power supply contact networks, characterized in that, The system includes an arch base (1), on which an arched frame (2) for connecting a channel is provided. The arched frame (2) includes an arch plate (21), which engages with the groove of the channel. A straightening plate (22) is snapped onto the upper end of the arch plate (21), and the straightening plate (22) engages with the inner wall of the channel. A base baffle (23) is provided at the end of the arch plate (21) and abuts against the end of the channel. A limiting groove (230) is provided on the base baffle (23), and the inner wall of the limiting groove (230) abuts against the outer edge of the end of the channel.

2. The tunnel power supply contact network pre-embedded channel inspection and correction device according to claim 1, characterized in that, At least two arched frames (2) are slidably and parallelly connected on the arch seat (1).

3. The tunnel power supply contact network pre-embedded channel inspection and correction device according to claim 2, characterized in that, The arch base (1) is provided with a slide rail (11) that is slidably connected to the arch plate (21), and the slide rail (11) is provided with a locking component (3) for locking the spacing between adjacent arch frames (2).

4. The tunnel power supply contact network pre-embedded channel inspection and correction device according to claim 3, characterized in that, The locking assembly (3) includes a spacer block (31) disposed between adjacent arch frames (2) and abutment blocks (32) disposed on the outer side of adjacent arch frames (2), wherein the abutment blocks (32) are fixed relative to the slide rail (11) by locking bolts (33).

5. The tunnel power supply contact network pre-embedded channel inspection and correction device according to claim 2, characterized in that, The arch base (1) is provided with limiting strips (12) on both sides, which abut against the end of the arch plate (21) to limit the linear sliding of the arch frame (2).

6. The tunnel power supply contact network pre-embedded channel inspection and correction device according to claim 1, characterized in that, The arch seat (1) is provided with a lightening hole (10).

7. The tunnel power supply contact network pre-embedded channel inspection and correction device according to claim 1, characterized in that, The arch seat (1) is mounted on the lifting platform.

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