Tunnel overhead line system channel fixing device

Abstract

The utility model relates to the field of civil engineering, in particular to a tunnel contact net channel fixing device. According to the technical scheme, the device comprises channel steel and a plurality of supporting section steel fixed to the bottom end of the channel steel, supporting plates are fixedly connected to the bottom ends of the supporting section steel, tensioning mechanisms are arranged at the bottom ends of the supporting plates close to the two ends, and each tensioning mechanism comprises a bottom column fixed to the bottom end of the corresponding supporting plate; sliding steel columns are slidably connected to the ends, away from the supporting plate, of the inner walls of the multiple bottom columns, and multiple sliding shafts penetrate through the outer walls of the multiple sliding steel columns. According to the tunnel contact net channel fixing device, the problem that a channel is prone to falling off is solved, damage to the channel in the welding process is reduced, meanwhile, it is prevented that the channel deviates due to pressure in the concrete pouring process, use of the channel is affected, the traditional mode that the channel is directly welded to a lining formwork through a steel bar in an auxiliary mode is avoided, and the production efficiency is improved. And the template is protected.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering, and in particular to a fixing device for the contact wire channel in a tunnel. Background Technology

[0002] China is currently in a crucial period of sustained and rapid economic and social development, and conventional railway transportation is far from meeting the urgent demands of industrialization. Therefore, with the vigorous development of railway construction, faster and safer high-speed railways have become a key focus of national development. The overhead contact line channel is a component supporting the overhead contact line in high-speed railway construction, used in tunnel engineering. The channel is pre-embedded in concrete for fixing the overhead contact line, communication signals, and electrical equipment. Currently, existing channel fixing methods generally involve directly welding reinforcing bars to the lining formwork. This not only causes significant damage to the formwork and channel, but also, due to weak welding, the channel is prone to displacement under pressure during pouring, leading to rework. Furthermore, poor channel fixing can easily cause the channel to detach over time, posing a significant safety risk to high-speed trains. Therefore, this application proposes a tunnel overhead contact line channel fixing device. Utility Model Content

[0003] The purpose of this utility model is to address the problems in the background technology, such as significant damage to the template channel and template, weak welding that easily causes channel displacement due to pressure during pouring and leads to rework, and poor channel fixation that can easily cause the channel to fall off over time, thus posing a significant safety risk to high-speed trains. The present invention proposes a tunnel contact network channel fixing device.

[0004] The technical solution of this utility model is: a tunnel contact network channel fixing device, including channel steel and multiple supporting steel sections fixed to the bottom end of the channel steel, each of the multiple supporting steel sections having a supporting plate fixedly connected to its bottom end, and a tensioning mechanism being provided at the bottom end of the supporting plates near both ends.

[0005] The tensioning mechanism includes a base column fixed to the bottom end of the support plate, a sliding steel column slidably connected to the inner wall of the base column away from the support plate, a plurality of sliding shafts penetrating the outer wall of the plurality of sliding steel columns, and a tensioning rod slidably connected to the inner wall of the plurality of sliding shafts.

[0006] Optionally, multiple overlapping steel plates are fixedly connected to both sides of the outer walls of the two channel steels, and a connecting frame is fixedly connected to the bottom end of the multiple overlapping steel plates.

[0007] Optionally, the top of the connecting frame is connected to the supporting steel by connecting bolts, and one side of the overlapping steel plate is connected to the channel steel by multiple connecting bolts.

[0008] Optionally, two overlapping steel plates are fixedly connected to the top of the multiple support plates, and one side of the two overlapping steel plates is fixedly connected to the support steel by fixing bolts.

[0009] Optionally, two fixing screws penetrate the inner bottom end face of each of the two channel steels, and multiple fixing screws are evenly distributed at both ends of the channel steels.

[0010] Optionally, the bottom ends of the two channel steels are fixedly connected to a connecting plate, which is made of a 6 mm thick wide steel plate.

[0011] Optionally, the tension rod is made of round steel with a diameter of eight millimeters bent, and multiple tension rods are located on one side of the connecting plate.

[0012] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] This invention utilizes multiple connections between the supporting steel sections and channel steel and the lining reinforcement to prevent the channel steel from falling off. Furthermore, connecting plates are installed between the multiple channel steel sections to facilitate welding between the channel steel and the lining reinforcement, ensuring a secure connection without damaging the channel body.

[0014] Furthermore, by using a tensioning mechanism, the connection between the reinforcing bars and the channel is made tighter, which solves the problem of the channel easily falling off and reduces the damage to the channel during the welding process. At the same time, it prevents the channel from shifting due to pressure during concrete pouring, which would affect the use of the channel. This avoids the traditional method of directly welding the channel to the lining formwork with reinforcing bars, and also protects the formwork. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of a tunnel contact wire channel fixing device is provided.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure from multiple angles;

[0017] Figure 3 This is a schematic diagram of the supporting steel connection structure;

[0018] Figure 4 This is a schematic diagram of the explosive structure of the supporting steel section.

[0019] Reference numerals in the attached drawings: 1. Channel steel; 2. Fixing screw; 3. Connecting plate; 4. Overlapping steel plate one; 5. Supporting steel; 6. Connecting frame; 7. Connecting bolt; 8. Overlapping steel plate two; 9. Support plate; 10. Base column; 11. Fixing bolt; 12. Sliding steel column; 13. Sliding shaft; 14. Tensioning rod. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0022] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1

[0027] like Figure 1 - Figure 4 As shown, the present invention proposes a tunnel contact network channel fixing device, which includes a channel steel 1 and multiple supporting steel sections 5 fixed to the bottom end of the channel steel 1. Each of the multiple supporting steel sections 5 is fixedly connected to a supporting plate 9 at its bottom end. A tensioning mechanism is provided at the bottom end of the supporting plate 9 at both ends. By setting the tensioning mechanism, the device can tighten and fix the steel bars tied in the external concrete foundation to prevent the channel from falling off.

[0028] Specific examples Figure 1 , Figure 3 and Figure 4 As shown, the tensioning mechanism includes a bottom column 10 fixed to the bottom end of the support plate 9, a sliding steel column 12 slidably connected to the inner wall of the multiple bottom columns 10 away from the support plate 9, a multiple sliding shaft 13 penetrating the outer wall of the multiple sliding steel columns 12, and a tensioning rod 14 slidably connected to the inner wall of the multiple sliding shafts 13.

[0029] With the above setup, by pulling the sliding steel column 12 to slide within the base column 10, the positions of multiple tension rods 14 can be adjusted to easily hook the reinforcing bars in the concrete. The length of the tension rods 14 can be adjusted by sliding the multiple tension rods 14 within the sliding shaft 13. The connection status of the reinforcing bars at some locations of the device can be adjusted according to the site environment, so that the device can be better fixed.

[0030] In this embodiment, the channel steel 1 is threaded through to form a channel. Multiple fixing screws 2 fix the channel steel 1 to the external template. The connecting plate 3 facilitates the welding of the reinforcing bars inside the foundation to the channel steel 1 and the lining reinforcing bars, making it easy to fix the channel steel 1. By setting the supporting steel 5, the device can connect the required grounding reinforcing bars to the outer wall of the supporting steel 5. By pulling the sliding steel column 12 to slide within the bottom column 10, the positions of multiple tension rods 14 can be adjusted to easily hook the reinforcing bars in the concrete. The length of the tension rods 14 can be adjusted by sliding the multiple tension rods 14 within the sliding shaft 13. The connection status of the reinforcing bars at some locations of the device can be adjusted according to the site environment to better fix the device.

[0031] Example 2

[0032] like Figure 1 , Figure 2 and Figure 4As shown, based on Embodiment 1, multiple overlapping steel plates 4 are fixedly connected to both sides of the outer walls of the two channel steels 1. A connecting frame 6 is fixedly connected to the bottom end of each overlapping steel plate 4. The top end of the connecting frame 6 is connected to the supporting steel 5 via connecting bolts 7. One side of each overlapping steel plate 4 is connected to the channel steel 1 via multiple connecting bolts 7. By setting the overlapping steel plates 4 and the connecting frame 6, the supporting steel 5 can be fixed to the channel steel 1, thereby making the connection between the supporting steel 5 and the channel steel 1 tighter.

[0033] like Figure 1 and Figure 4 As shown, two overlapping steel plates 8 are fixedly connected to the top of multiple support plates 9. One side of the two overlapping steel plates 8 is fixedly connected to the support steel 5 by fixing bolts 11. By setting the overlapping steel plates 8, the support plates 9 can be more tightly connected to the support steel 5, preventing bending and breakage during concrete pouring.

[0034] like Figure 1 As shown, two fixing screws 2 penetrate the inner bottom end face of each of the two channel steels 1. Multiple fixing screws 2 are evenly distributed at both ends of the channel steel 1. By setting the fixing screws 2, the channel steel 1 can be tightly connected to the template.

[0035] like Figure 1 As shown, the bottom ends of the two channel steels 1 are fixedly connected to the connecting plates 3. The connecting plates 3 are made of a 6 mm thick wide steel plate. By setting the connecting plates 3, the steel bars in the external concrete foundation can be welded to the connecting plates 3.

[0036] like Figure 1 - Figure 4 As shown, the tension rod 14 is made of round steel with a diameter of eight millimeters bent, and multiple tension rods 14 are located on one side of the connecting plate 3. By setting tension rods 14, the connection between the external concrete reinforcement and the channel is more stable, and the channel will not be misaligned due to external factors such as concrete pouring.

[0037] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A tunnel contact wire channel fixing device, comprising a channel steel (1) and a plurality of supporting steel profiles (5) fixed to the bottom end of the channel steel (1), characterized in that: Each of the multiple supporting steel sections (5) is fixedly connected to a supporting plate (9) at its bottom end, and a tensioning mechanism is provided at the bottom end of the supporting plate (9) at both ends. The tensioning mechanism includes a bottom column (10) fixed to the bottom end of the support plate (9), and a sliding steel column (12) is slidably connected to the inner wall of the multiple bottom columns (10) away from the support plate (9). Multiple sliding shafts (13) are passed through the outer wall of the multiple sliding steel columns (12), and tensioning rods (14) are slidably connected to the inner wall of the multiple sliding shafts (13).

2. The tunnel contact wire channel fixing device according to claim 1, characterized in that, Multiple overlapping steel plates (4) are fixedly connected to the outer walls of the two channel steels (1), and a connecting frame (6) is fixedly connected to the bottom end of the multiple overlapping steel plates (4).

3. The tunnel contact wire channel fixing device according to claim 2, characterized in that, The top of the connecting frame (6) is connected to the supporting steel (5) by connecting bolts (7), and one side of the overlapping steel plate (4) is connected to the channel steel (1) by multiple connecting bolts (7).

4. The tunnel contact wire channel fixing device according to claim 1, characterized in that, Two overlapping steel plates (8) are fixedly connected to the top of the multiple support plates (9), and one side of the two overlapping steel plates (8) is fixedly connected to the support steel (5) by fixing bolts (11).

5. A tunnel contact wire channel fixing device according to claim 1, characterized in that, Two fixing screws (2) are passed through the inner bottom end face of each of the two channel steels (1), and multiple fixing screws (2) are evenly distributed at both ends of the channel steels (1).

6. The tunnel contact wire channel fixing device according to claim 1, characterized in that, The bottom ends of the two channel steels (1) are fixedly connected to a connecting plate (3), which is made of a wide steel plate with a thickness of six millimeters.

7. A tunnel contact wire channel fixing device according to claim 1, characterized in that, The tension rod (14) is made of round steel with a diameter of eight millimeters bent, and multiple tension rods (14) are located on one side of the connecting plate (3).

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