Convenient-to-position pre-buried channel for overhead line system in tunnel

Abstract

The utility model discloses an in-tunnel catenary pre-buried channel convenient to position, which comprises a pre-buried channel, the two sides of the pre-buried channel are fixedly provided with limiting assemblies, the top end of the pre-buried channel is fixedly provided with a plurality of positioning piles, the top ends of the plurality of positioning piles are provided with positioning assemblies, and each of the two limiting assemblies comprises a limiting shell and a connecting shell. According to the convenient-to-position catenary pre-buried channel in the tunnel, the limiting assembly and the positioning assembly are arranged, the pressing plate pushes the adjusting shell to slide relative to the limiting groove, the distance between the two self-locking telescopic rods is adjusted, the length of the self-locking telescopic rods is changed, the self-locking telescopic rods can be adjusted, and the positioning effect is good. The self-locking telescopic rod pushes the ground pile from the top, the height of the ground pile is adjusted, the ground pile is inserted into the use position to complete positioning of the pre-buried tunnel, the positioned tunnel is reinstalled, the phenomenon of installation position deviation is avoided, and the installation efficiency of the pre-buried tunnel is improved.

Description

Technical Field

[0001] This utility model relates to the field of pre-embedded channel technology, specifically a pre-embedded channel for contact wire in tunnels that is easy to locate. Background Technology

[0002] Pre-embedded channels play a crucial role in tunnel engineering. They are typically made of metal, including steel plates and anchor bolts, and are used to connect structural components. In high-speed railway tunnels, pre-embedded channels are installed in concrete to secure contact wires, communication signals, and electrical equipment. This design ensures the stability and safety of these devices within the tunnel, especially during high-speed train operation, enabling them to withstand the dynamic and static loads generated by train movement. The installation process of pre-embedded channels is also very important. First, holes are drilled on the lining trolley according to design requirements. Then, the centerline position is measured using a total station, and the positioning reference line is drawn with a steel ruler. Next, T-bolt positioning holes are cut using oxy-acetylene welding, and the channels are fixed to the trolley template with matching T-bolts. After the concrete is poured, the bolts are loosened and the tunnel is demolded. This precise installation method ensures the stability and load-bearing capacity of the pre-embedded channels.

[0003] However, traditional pre-embedded channels have the following disadvantages:

[0004] Traditional pre-embedded channel installation cannot guarantee accurate alignment between the pre-embedded channel and the installation position, which can easily lead to installation misalignment. The channel needs to be readjusted before installation, making the process very cumbersome. Utility Model Content

[0005] The purpose of this utility model is to provide a pre-embedded channel for contact wire in tunnels that is easy to position, in order to solve the problem mentioned in the background art that the traditional pre-embedded channel cannot guarantee accurate alignment between the pre-embedded channel and the installation position, and the pre-embedded channel is prone to misalignment during installation, requiring readjustment and reinstallation, which is very cumbersome.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pre-embedded channel for contact wire in a tunnel that is easy to position, comprising a pre-embedded channel, with limiting components fixedly installed on both sides of the pre-embedded channel, and a plurality of positioning piles fixedly installed at the top of the pre-embedded channel, each of the positioning piles having a positioning component installed at its top, each of the two limiting components comprising a limiting shell and a connecting shell, the bottom end of the limiting shell having a limiting groove, one side of the inner wall of the limiting groove being fixedly connected to one side of the connecting shell, a length rod being slidably connected inside the connecting shell, one end of the length rod being fixedly installed with an adjusting shell, and a self-locking telescopic rod being fixedly installed at the bottom end of both the connecting shell and the adjusting shell.

[0007] Preferably, the surface of the limiting shell and the surface of the two self-locking telescopic rods are provided with a number of scale lines, and the movable ends of the two self-locking telescopic rods are fixedly installed with ground stakes. The user can visually adjust the width and height of the limiting component by observing the scale lines.

[0008] Preferably, a pressure plate is fixedly installed on one side of the adjusting shell, and a screw threadedly connected to the limiting shell is rotatably connected to one side of the pressure plate. A handle is fixedly installed at one end of the screw. When the user rotates the handle, the handle drives the screw to move synchronously. The thread on the surface of the screw matches the thread on the inner wall of the limiting shell, and the screw rotates and translates relative to the limiting shell. The screw pushes the pressure plate from one side, and the pressure plate pushes the adjusting shell to slide relative to the limiting groove, adjusting the distance between the two self-locking telescopic rods. When the user releases the fixing of the self-locking telescopic rod, the movable end of the self-locking telescopic rod slides along the fixed end of the self-locking telescopic rod, changing the length of the self-locking telescopic rod. The self-locking telescopic rod pushes the ground stake from the top, adjusting the height of the ground stake.

[0009] Preferably, a connecting spring is fixedly installed on one side of the inner wall of the connecting shell, and a sliding plate that is slidably connected to the connecting shell is fixedly installed on one end of the connecting spring. One side of the sliding plate is fixedly connected to the end of the length rod directly opposite it. When the length rod is pushed by the adjusting shell, it causes the sliding plate to slide along the connecting shell, and the sliding plate compresses the connecting spring. The connecting spring is elastic, and the elastic deformation of the connecting spring buffers the compressive force.

[0010] Preferably, one end of the limiting shell is fixedly connected to the pre-embedded channel, and the limiting component is installed on the pre-embedded channel through the limiting shell.

[0011] Preferably, the positioning assembly includes a positioning rod and two locking pins. The bottom ends of both sides of the positioning rod are respectively hinged to one end of the two locking pins. Support springs are fixedly installed in the middle of both sides of the two locking pins, and one end of each support spring is fixedly connected to the side of the positioning rod directly opposite to it.

[0012] Preferably, the two locking posts are respectively set to correspond to the two movable ports. When the user presses the positioning rod, the locking posts on the positioning rod are deflected at an angle without being subjected to squeezing force, so that the locking posts are locked into the movable ports, thus completing the assembly of the positioning component and the positioning post.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a limiting component and a positioning component, the pressure plate pushes the adjusting shell to slide relative to the limiting groove, thereby adjusting the distance between the two self-locking telescopic rods. The length of the self-locking telescopic rods changes, and the self-locking telescopic rods push the ground pile from the top to adjust the height of the ground pile. The ground pile is inserted into the place of use to complete the positioning of the pre-buried tunnel. After the tunnel is positioned, the installation avoids the phenomenon of installation position deviation, thus improving the installation efficiency of the pre-buried tunnel. Attached Figure Description

[0014] Figure 1 This is a side view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a side view of the limiting component of this utility model;

[0017] Figure 4 This is a cross-sectional view of the limiting component of this utility model;

[0018] Figure 5 This is a connection diagram of the positioning stake and positioning component of this utility model.

[0019] In the diagram: 1. Embedded channel; 2. Limiting component; 201. Limiting shell; 202. Scale line; 203. Self-locking telescopic rod; 204. Screw; 205. Handle; 206. Connecting shell; 207. Connecting spring; 208. Sliding plate; 209. Length rod; 210. Adjusting shell; 211. Pressure plate; 212. Limiting groove; 213. Ground stake; 3. Positioning stake; 4. Positioning component; 41. Positioning rod; 42. Locking post; 43. Support spring; 5. Movable opening. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-5 This utility model provides a pre-embedded channel for contact wire in tunnels that is easy to position. It includes a pre-embedded channel 1, with limiting components 2 fixedly installed on both sides of the pre-embedded channel 1. Several positioning piles 3 are fixedly installed at the top of the pre-embedded channel 1, and positioning components 4 are installed at the top of each of the positioning piles 3. Each of the two limiting components 2 includes a limiting shell 201 and a connecting shell 206. A limiting groove 212 is opened at the bottom of the limiting shell 201. One side of the inner wall of the limiting groove 212 is fixedly connected to one side of the connecting shell 206. A length rod 209 is slidably connected inside the connecting shell 206. An adjusting shell 210 is fixedly installed at one end of the length rod 209. A self-locking telescopic rod 203 is fixedly installed at the bottom of both the connecting shell 206 and the bottom of the adjusting shell 210.

[0022] The surface of the limiting shell 201 and the surface of the two self-locking telescopic rods 203 are provided with several scale lines 202. The movable ends of the two self-locking telescopic rods 203 are fixedly installed with ground stakes 213. The user can visually adjust the width and height of the limiting component 2 by observing the scale lines 202.

[0023] A pressure plate 211 is fixedly installed on one side of the adjusting shell 210. A screw 204, which is threadedly connected to the limiting shell 201, is rotatably connected to one side of the pressure plate 211. A handle 205 is fixedly installed on one end of the screw 204. When the user rotates the handle 205, the handle 205 drives the screw 204 to move synchronously. The thread on the surface of the screw 204 matches the thread on the inner wall of the limiting shell 201. The screw 204 rotates and translates relative to the limiting shell 201. The screw 204 pushes the pressure plate 211 from one side. The pressure plate 211 pushes the adjusting shell 210 to slide relative to the limiting groove 212, adjusting the distance between the two self-locking telescopic rods 203. When the user releases the fixing of the self-locking telescopic rod 203, the movable end of the self-locking telescopic rod 203 slides along the fixed end of the self-locking telescopic rod 203, changing the length of the self-locking telescopic rod 203. The self-locking telescopic rod 203 pushes the ground stake 213 from the top, adjusting the height of the ground stake 213.

[0024] A connecting spring 207 is fixedly installed on one side of the inner wall of the connecting shell 206. A sliding plate 208 that is slidably connected to the connecting shell 206 is fixedly installed on one end of the connecting spring 207. One side of the sliding plate 208 is fixedly connected to the end of the length rod 209 directly opposite to it. When the length rod 209 is pushed by the adjusting shell 210, it causes the sliding plate 208 to slide along the connecting shell 206. The sliding plate 208 compresses the connecting spring 207. The connecting spring 207 is elastic and undergoes elastic deformation to buffer the compressive force.

[0025] One end of the limiting shell 201 is fixedly connected to the pre-embedded channel 1, and the limiting component 2 is installed on the pre-embedded channel 1 through the limiting shell 201.

[0026] The positioning assembly 4 includes a positioning rod 41 and two locking pins 42. The bottom ends of both sides of the positioning rod 41 are respectively hinged to one end of the two locking pins 42. Supporting springs 43 are fixedly installed in the middle of both sides of the two locking pins 42. One end of each of the two supporting springs 43 is fixedly connected to the side of the positioning rod 41 that is directly opposite to it.

[0027] Two locking posts 42 are respectively set to correspond to two movable ports 5. When the user presses the positioning rod 41, the locking posts 42 on the positioning rod 41 are not subjected to pressure and are deflected at an angle, so that the locking posts 42 are locked into the movable ports 5, thus completing the assembly of the positioning component 4 and the positioning post 3.

[0028] In this embodiment, during use: the user rotates the handle 205, which drives the screw 204 to move synchronously. The thread on the surface of the screw 204 matches the thread on the inner wall of the limiting shell 201. The screw 204 rotates and translates relative to the limiting shell 201. The screw 204 pushes the pressure plate 211 from one side, and the pressure plate 211 pushes the adjusting shell 210 to slide relative to the limiting groove 212, adjusting the distance between the two self-locking telescopic rods 203. The user releases the fixing of the self-locking telescopic rods 203, and the movable end of the self-locking telescopic rod 203 moves along... When the fixed end of the self-locking telescopic rod 203 slides, the length of the self-locking telescopic rod 203 changes. The self-locking telescopic rod 203 pushes the ground stake 213 from the top, adjusting the height of the ground stake 213. The user visually observes the scale line 202 to adjust the width and height of the limiting component 2. The user presses the positioning rod 41, and the locking post 42 on the positioning rod 41 deflects at an angle without being squeezed, so that the locking post 42 is locked into the movable opening 5, completing the assembly of the positioning component 4 and the positioning stake 3. After installing the pre-embedded channel 1, the locking post 42 is squeezed and the positioning rod 41 is pulled out.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pre-embedded channel for contact wire in a tunnel that is easy to position, comprising a pre-embedded channel (1), characterized in that: Both sides of the pre-embedded channel (1) are fixedly installed with limiting components (2). Several positioning piles (3) are fixedly installed at the top of the pre-embedded channel (1). Positioning components (4) are installed at the top of the several positioning piles (3). Both limiting components (2) include a limiting shell (201) and a connecting shell (206). A limiting groove (212) is opened at the bottom of the limiting shell (201). One side of the inner wall of the limiting groove (212) is fixedly connected to one side of the connecting shell (206). A length rod (209) is slidably connected inside the connecting shell (206). An adjusting shell (210) is fixedly installed at one end of the length rod (209). A self-locking telescopic rod (203) is fixedly installed at the bottom of the connecting shell (206) and the bottom of the adjusting shell (210).

2. The tunnel contact wire pre-embedded channel for easy positioning according to claim 1, characterized in that: The surface of the limiting shell (201) and the surface of the two self-locking telescopic rods (203) are provided with several scale lines (202), and the movable ends of the two self-locking telescopic rods (203) are fixedly installed with ground stakes (213).

3. The tunnel contact wire pre-embedded channel for easy positioning according to claim 1, characterized in that: A pressure plate (211) is fixedly installed on one side of the adjustment shell (210), and a screw (204) that is threadedly connected to the limiting shell (201) is rotatably connected to one side of the pressure plate (211). A handle (205) is fixedly installed on one end of the screw (204).

4. The tunnel contact wire pre-embedded channel for easy positioning according to claim 1, characterized in that: A connecting spring (207) is fixedly installed on one side of the inner wall of the connecting shell (206). A sliding plate (208) that is slidably connected to the connecting shell (206) is fixedly installed on one end of the connecting spring (207). One side of the sliding plate (208) is fixedly connected to the end of the length rod (209) directly opposite to it.

5. The tunnel contact wire pre-embedded channel for easy positioning according to claim 1, characterized in that: One end of the limiting shell (201) is fixedly connected to the pre-embedded channel (1).

6. The tunnel contact wire pre-embedded channel for easy positioning according to claim 1, characterized in that: The positioning component (4) includes a positioning rod (41) and two locking pins (42). The bottom ends of both sides of the positioning rod (41) are respectively hinged to one end of the two locking pins (42). Supporting springs (43) are fixedly installed in the middle of both sides of the two locking pins (42). One end of each of the two supporting springs (43) is fixedly connected to the side of the positioning rod (41) facing it.

7. A pre-embedded channel for contact wire in a tunnel that is easy to position, as described in claim 6, is characterized in that: The two locking posts (42) are respectively set to correspond to the two movable ports (5).

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