Arc-shaped power cable mounting bracket for tunnel

Abstract

The utility model relates to the field of tunnel cables, in particular to a power cable arc-shaped mounting bracket for a tunnel. The technical problems that in the using process of an installation support, due to the fact that cables of different sizes cannot be installed at the same time, the cables fall off easily, and the electric leakage danger is caused are solved, and the installation support is mostly installed in a right-angle mode and cannot be attached to the tunnel wall are solved. According to the technical scheme, the arc-shaped mounting bracket for the power cable for the tunnel comprises an arc-shaped frame, and further comprises a first clamping assembly and a second clamping assembly. According to the utility model, through the arrangement of the first clamping assembly, the situation of excessive tension or extrusion deformation in the passing process of a power cable is avoided, adjustment can be carried out according to power cables with different diameters, then through the second clamping assembly, the left-right position of the second clamping plate is adjusted, and a larger power cable can be stably clamped; and adjustment and fitting clamping are carried out according to the specific size of the power cable, and the installation requirements of power cables of various specifications are met.

Description

Technical Field

[0001] The utility model relates to the field of tunnel cables, in particular to an arc-shaped installation bracket for power cables used in tunnels. Background Art

[0002] Tunnels are now common in our daily lives, existing in mountains or underground. Traffic tunnels have become an important form of traffic sections. As the excavation of tunnel projects continues to deepen, the working environment of the initial support section continues to deteriorate. As the core of engineering construction, the stability of the transmission process and the installation method of transmission cables are of great significance to the safe operation of on-site personnel. The transmission of electricity is an important project in tunnels. When installing power cables in tunnels, the use of mounting brackets can effectively manage and support the cables to ensure their safe and reliable operation. However, the existing tunnel power cable installation and fixing brackets have a complex structure and cannot install cables of different sizes at the same time. Inconsistent cable sizes can easily cause them to fall off, leading to the risk of leakage. In addition, most mounting brackets are installed at right angles and cannot fit the tunnel wall, making the installation stability poor, which can easily affect the ease of use of the entire mounting bracket. Utility Model Content

[0003] In order to overcome the problem that during the use of the mounting bracket, cables of different sizes cannot be installed at the same time, which may easily cause them to fall off and cause the risk of leakage, and the mounting brackets are mostly installed at right angles and cannot fit the tunnel wall.

[0004] The technical solution of the utility model is: an arc-shaped installation bracket for a power cable for a tunnel, comprising an arc-shaped frame, and also comprising a mounting piece, a first support plate, a first clamping assembly, a second support plate, a limiting slide groove, and a second clamping assembly, wherein the first support plates are installed at both upper and lower ends of the inner side of the arc-shaped frame, the first clamping assemblies are arranged at both left and right ends of the tops of the two groups of first support plates, the second support plate is installed at the center position of the inner side of the arc-shaped frame, the inner upper end of the second support plate is provided with a limiting slide groove, and the inner upper end of the limiting slide groove is provided with a second clamping assembly.

[0005] Preferably, by setting up a first clamping component, the arc ensures that the power cable can pass smoothly and maintain good contact, and the tension of the telescopic spring can determine the distance between the lower arc clamping plate and the upper arc clamping plate, ensuring that the power cable will not be over-tensioned or squeezed and deformed during the passage, and can be adjusted according to power cables of different diameters, with high applicability. Then, through the second clamping component, the second clamping plate can be adjusted to the left and right position, which can firmly clamp larger power cables, and adjust and clamp according to the specific size of the power cable, to meet the installation requirements of power cables of various specifications, thereby greatly improving the ease of use of the entire mounting bracket.

[0006] Preferably, the front and rear ends of the arc frame are connected with several sets of mounting parts, and the outer wall of the arc frame fits the tunnel wall more closely. The arc frame is firmly fixed to the tunnel wall by connecting screws inside the mounting parts, and the installation method is simple and convenient.

[0007] Preferably, the first clamping assembly includes a lower arc-shaped clamping plate, an upper arc-shaped clamping plate, a connecting plate, a through hole, a fixing rod, a fixing plate and a telescopic spring. The lower arc-shaped clamping plate is fixedly installed on the top of the first support plate. An upper arc-shaped clamping plate is provided at the upper end of the lower arc-shaped clamping plate. The arc shape ensures that the power cable can pass smoothly and maintain good contact.

[0008] Preferably, a connecting plate is connected to the lower end of one side of the upper arc-shaped clamping plate, and through holes are provided at both the front and rear ends of the connecting plate. Two groups of fixing rods are respectively installed on the top of the first support plate and pass through the two groups of through holes. The same group of fixing plates are installed on the top of the two groups of fixing rods. A telescopic spring is provided on the outer wall of the fixing rod and between the through hole and the fixing plate. The spacing between the lower arc-shaped clamping plate and the upper arc-shaped clamping plate is determined by the tension of the telescopic spring, thereby ensuring that the power cable will not be over-tensioned or squeezed and deformed during the passage, and can be adjusted according to power cables of different diameters, with high applicability.

[0009] Preferably, the second clamping assembly includes a first clamping plate, a driving motor, a threaded screw, a limiting slider and a second clamping plate. The first clamping plate is fixedly mounted on the left end of the top of the second support plate, the driving motor is mounted on the left end of the inner wall of the limiting slide groove, the right output end of the driving motor is connected with a threaded screw, the right end of the outer wall of the threaded screw is threadedly connected to the limiting slider, and the top of the limiting slider is provided with a second clamping plate, and the inner walls of the first clamping plate and the second clamping plate are both provided with arc surfaces. By starting the driving motor to drive the rotation of the threaded screw, the limiting slider drives the second clamping plate to adjust the left and right position, which can firmly clamp larger power cables and adjust and clamp them according to the specific size of the power cables, meeting the installation requirements of power cables of various specifications and greatly improving the convenience of users.

[0010] Preferably, the limit slider is connected to the inner part of the limit slide groove by an engaging engagement, so as to improve the stability of the limit slider when driving the second clamping plate to move and adjust, and avoid displacement during use, which would result in an unstable installation of the power cable.

[0011] Preferably, the first clamping plate and the second clamping plate are both made of galvanized steel, which has good corrosion resistance and can resist corrosion of the metal by humidity and tunnel environmental conditions. The galvanized steel structure is sturdy and durable and suitable for long-term use.

[0012] Beneficial effects of the utility model:

[0013] 1. By providing a composite structure of a mounting member, a first clamping assembly and a second clamping assembly to replace the original single structure, the arc frame can be firmly fixed on the tunnel wall. The installation method is simple and convenient, and it can firmly clamp power cables of different sizes, and adjust and clamp them according to the specific size of the power cables, meeting the installation requirements of power cables of various specifications, thereby improving the convenience of use of the entire mounting bracket to a certain extent;

[0014] 2. The arc frame is firmly fixed on the tunnel wall by connecting screws inside the mounting parts. The installation method is simple and convenient;

[0015] 3. Through the first clamping assembly, the arc ensures that the power cable can pass smoothly and maintain good contact, ensuring that the power cable will not be over-tensioned or squeezed and deformed during the passage, and can be adjusted according to power cables of different diameters;

[0016] 4. The second clamping plate can be adjusted to the left and right positions through the second clamping assembly, so that a larger power cable can be firmly clamped, and the second clamping plate can be adjusted and clamped according to the specific size of the power cable to meet the installation requirements of power cables of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 What is shown is a first three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 What is shown is a second three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of the first clamping assembly installation;

[0020] Figure 4 What is shown is a schematic diagram of a cross-sectional three-dimensional structure of the utility model;

[0021] Figure 5 What is shown is a schematic diagram of the disassembled three-dimensional structure of the second clamping component of the utility model.

[0022] Explanation of the accompanying drawings: 1-arc frame, 2-mounting part, 3-first support plate, 4-first clamping assembly, 5-second support plate, 6-limiting slide groove, 7-second clamping assembly, 401-lower arc clamping plate, 402-upper arc clamping plate, 403-connecting plate, 404-through hole, 405-fixing rod, 406-fixing plate, 407-telescopic spring, 701-first clamping plate, 702-driving motor, 703-threaded screw, 704-limiting slider, 705-second clamping plate. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1-3 The utility model provides an embodiment: an arc-shaped installation bracket for a power cable in a tunnel, comprising an arc-shaped frame 1, and also comprising a mounting member 2, a first support plate 3, a first clamping assembly 4, a second support plate 5, a limiting slide groove 6 and a second clamping assembly 7. The front and rear ends of the arc-shaped frame 1 are connected with a plurality of groups of mounting members 2. The outer wall of the arc-shaped frame 1 fits the tunnel wall more closely. The arc-shaped frame 1 is firmly fixed to the tunnel wall by connecting screws inside the mounting member 2. The installation method is simple and convenient. The first support plates 3 are installed at the upper and lower ends of the inner side of the arc-shaped frame 1. The first clamping assemblies 4 are arranged at the left and right ends of the tops of the two groups of first support plates 3. The first clamping assembly 4 comprises a lower arc-shaped clamping plate 401, an upper arc-shaped clamping plate 402, a connecting plate 403, a through hole 404, a fixing rod 405, a fixing plate 406 and a telescopic spring 407. The lower arc-shaped clamping plate 401 is fixedly installed on the top of the first support plate 3 The upper end of the lower arc-shaped clamping plate 401 is provided with an upper arc-shaped clamping plate 402, and the arc shape ensures that the power cable can pass smoothly and maintain good contact. A connecting plate 403 is connected to the lower end of one side of the upper arc-shaped clamping plate 402. Through holes 404 are provided at the front and rear ends of the connecting plate 403. The fixing rods 405 are provided in two groups, which are respectively installed on the top of the first support plate 3 and pass through the two groups of through holes 404. The tops of the two groups of fixing rods 405 are installed with the same group of fixing plates 406. The outer side wall of the fixing rod 405 and between the through hole 404 and the fixing plate 406 are provided with a telescopic spring 407. The tension of the telescopic spring 407 is used to determine the distance between the lower arc-shaped clamping plate 401 and the upper arc-shaped clamping plate 402, so as to ensure that the power cable will not be over-tensioned or squeezed and deformed during the passage, and can be adjusted according to power cables of different diameters, with high applicability.

[0025] See also Figure 4-5In this embodiment, a second support plate 5 is installed at the center position of the inner side of the arc frame 1, and a limited sliding groove 6 is provided at the inner upper end of the second support plate 5. A second clamping assembly 7 is provided at the inner upper end of the limited sliding groove 6. The second clamping assembly 7 includes a first clamping plate 701, a driving motor 702, a threaded screw 703, a limited sliding block 704 and a second clamping plate 705. The first clamping plate 701 is fixedly installed at the left end of the top of the second support plate 5, and the driving motor 702 is installed at the left end of the inner side wall of the limited sliding groove 6. The right output end of the driving motor 702 is connected with a threaded screw 703, and the right end of the outer wall of the threaded screw 703 is threadedly connected to the limited sliding block 704. The top of the limited sliding block 704 is provided with a second clamping plate 705. The inner side walls of the first clamping plate 701 and the second clamping plate 705 are both provided with arc surfaces. Starting the drive motor 702 drives the threaded screw 703 to rotate, so that the limit slider 704 drives the second clamping plate 705 to adjust the left and right position, which can firmly clamp larger power cables and adjust and clamp according to the specific size of the power cables, meeting the installation requirements of power cables of various specifications, greatly improving the convenience of users, and the limit slider 704 is internally engaged with the limit slide 6 to improve the stability of the limit slider 704 when driving the second clamping plate 705 to move and adjust, avoiding displacement during use, resulting in insufficient stability of the power cable installation, the first clamping plate 701 and the second clamping plate 705 are both made of galvanized steel, which has good corrosion resistance and can resist the corrosion of humidity and tunnel environmental conditions to metals, and the galvanized steel structure is strong and durable, suitable for long-term use.

[0026] When installing the bracket, firstly, the outer wall of the arc frame 1 is made to fit the tunnel wall more closely, and then the arc frame 1 is firmly fixed to the tunnel wall by connecting screws inside the mounting member 2. The installation method is simple and convenient.

[0027] Then, through the first clamping assembly 4, the arc ensures that the power cable can pass smoothly and maintain good contact. The tension of the telescopic spring 407 determines the distance between the lower arc clamping plate 401 and the upper arc clamping plate 402, ensuring that the power cable will not be over-tensioned or squeezed and deformed during the passage, and can be adjusted according to power cables of different diameters, with high applicability;

[0028] Then, through the second clamping component 7, the driving motor 702 is started to drive the rotation of the threaded screw 703, so that the limiting slider 704 drives the second clamping plate 705 to adjust the left and right position, which can firmly clamp larger power cables and adjust and clamp them according to the specific size of the power cables to meet the installation requirements of power cables of various specifications, and can avoid displacement during use, resulting in insufficient stability in the installation of the power cables. The first clamping plate 701 and the second clamping plate 705 are both made of galvanized steel, which has good corrosion resistance and can resist the corrosion of humidity and tunnel environmental conditions to metals. The galvanized steel structure is sturdy and durable, and is suitable for long-term use.

[0029] Through the above steps, the arc frame 1 is firmly fixed on the tunnel wall by connecting screws inside the mounting member 2, and then the arc of the first clamping component 4 is used to ensure that the power cable can pass smoothly and maintain good contact. The tension of the telescopic spring 407 can determine the distance between the lower arc clamping plate 401 and the upper arc clamping plate 402, ensuring that the power cable will not be over-tensioned or squeezed and deformed during the passage, and can be adjusted according to power cables of different diameters. Then, by starting the drive motor 702 to drive the rotation of the threaded screw 703, the limit slider 704 drives the second clamping plate 705 to adjust the left and right position, which can firmly clamp larger power cables, and adjust and clamp them according to the specific size of the power cables, meet the installation requirements of power cables of various specifications, and avoid displacement during use, thereby greatly improving the convenience of use of the entire mounting bracket.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An arc-shaped installation bracket for a power cable for a tunnel, comprising an arc-shaped bracket (1); characterized in that: It also includes a mounting member (2), a first support plate (3), a first clamping assembly (4), a second support plate (5), a limiting slide groove (6) and a second clamping assembly (7); the first support plates (3) are installed at both upper and lower ends of the inner side of the arc frame (1); the first clamping assemblies (4) are arranged at both left and right ends of the top of the two groups of first support plates (3); the second support plate (5) is installed at the center position of the inner side of the arc frame (1); the limiting slide groove (6) is arranged at the inner upper end of the second support plate (5); and the second clamping assembly (7) is arranged at the inner upper end of the limiting slide groove (6).

2. The arc-shaped installation bracket for power cables used in tunnels according to claim 1, characterized in that: The front and rear ends of the arc-shaped frame (1) are both connected with a plurality of groups of mounting parts (2).

3. The arc-shaped installation bracket for power cables used in tunnels according to claim 1, characterized in that: The first clamping assembly (4) comprises a lower arc-shaped clamping plate (401), an upper arc-shaped clamping plate (402), a connecting plate (403), a through hole (404), a fixing rod (405), a fixing plate (406) and a telescopic spring (407); the lower arc-shaped clamping plate (401) is fixedly mounted on the top of the first supporting plate (3); and the upper arc-shaped clamping plate (402) is arranged at the upper end of the lower arc-shaped clamping plate (401).

4. The arc-shaped installation bracket for power cables used in tunnels according to claim 3 is characterized in that: A connecting plate (403) is connected to the lower end of one side of the upper arc-shaped clamping plate (402), and through holes (404) are provided at both the front and rear ends of the connecting plate (403). Two groups of fixing rods (405) are provided, which are respectively installed on the top of the first support plate (3) and penetrate the inside of the two groups of through holes (404). The tops of the two groups of fixing rods (405) are installed with the same group of fixing plates (406), and a telescopic spring (407) is provided on the outer wall of the fixing rod (405) and between the through holes (404) and the fixing plate (406).

5. The arc-shaped installation bracket for power cables used in tunnels according to claim 1, characterized in that: The second clamping assembly (7) comprises a first clamping plate (701), a driving motor (702), a threaded screw (703), a limiting slider (704) and a second clamping plate (705). The first clamping plate (701) is fixedly mounted on the left end of the top of the second support plate (5). The driving motor (702) is mounted on the left end of the inner wall of the limiting slide groove (6). The right output end of the driving motor (702) is connected to the threaded screw (703). The right end of the outer wall of the threaded screw (703) is threadedly connected to the limiting slider (704). The top of the limiting slider (704) is provided with a second clamping plate (705). The inner walls of the first clamping plate (701) and the second clamping plate (705) are both provided with arc surfaces.

6. The arc-shaped installation bracket for power cables used in tunnels according to claim 5, characterized in that: The limiting sliding block (704) is connected to the inside of the limiting sliding groove (6) by snapping.

7. The arc-shaped installation bracket for power cables used in tunnels according to claim 5, characterized in that: The first clamping plate (701) and the second clamping plate (705) are both made of galvanized steel.

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