Cable support convenient for subway construction

Abstract

The invention discloses a cable support convenient for metro construction, which comprises a cable and a metro tunnel, and further comprises an arc-shaped mounting frame, the arc-shaped mounting frame is fixedly connected to the inner wall of the metro tunnel, the whole arc-shaped mounting frame is arc-shaped, and the radian of the arc-shaped mounting frame is the same as that of the inner wall of the metro tunnel; the supporting mechanism is installed on the arc-shaped installation frame in a sliding mode, a cable is placed and installed on the supporting mechanism, the supporting mechanism comprises a bracket and a semicircular clamping block, an adjusting sliding groove is formed in the bracket, and a limiting sliding block is installed in the adjusting sliding groove in a sliding mode. The arc-shaped mounting frame is designed to be arc-shaped, so that the device is integrally attached to the inner edge of the subway tunnel to be mounted, the device is conveniently mounted in the circular tunnel firstly, then the device is close to the edge of the tunnel as much as possible, and the passing space in the middle is prevented from being occupied; and interference and influence on passing of personnel or equipment in the tunnel construction process are reduced.

Description

Technical Field

[0001] This invention relates to a cable support, and more particularly to a cable support that is convenient for subway construction. Background Technology

[0002] During the construction of the subway, some cables need to be laid along the subway line for power support. In order to ensure the smooth progress of the subway construction, cable brackets are needed to support the cables while laying them simultaneously.

[0003] For example, Chinese Patent Publication No. CN223039577U discloses a cable bracket for subway construction, comprising a fixed frame, a shelf attached to the outer wall of the fixed frame, a fixed sleeve fixedly connected inside the positioning block, a slider slidably connected to the inner wall of the fixed sleeve, a sliding sleeve fixedly connected to the upper surface of the slider, the sliding sleeve slidably connected inside the positioning block, a limit block fixedly connected to the outer wall of the slider, a U-shaped groove formed inside the fixed sleeve, the outer wall of the limit block slidably connected to the inside of the U-shaped groove, and a sliding rod fixedly connected to the lower surface of the slider. This invention solves the problem that the shelf is difficult to adjust, resulting in a fixed design that cannot meet varied needs and limits the adaptability of the bracket. It allows for flexible adjustment of the number and height of the shelf to meet different construction needs and site conditions, increasing the adaptability of the equipment. However, this patent has the following problems: Subway tunnels are often constructed using tunnel boring machines (TBMs). Their internal space is a circular corridor, and the vertical supports are difficult to fix to the tunnel walls. At the same time, the storage panels extend to the sides, occupying space in the center and affecting the passage of personnel or material vehicles inside the tunnel. Summary of the Invention

[0004] The purpose of this invention is to provide a cable support that is convenient for subway construction, so as to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cable support for subway construction, comprising cables, a subway tunnel, and further comprising: An arc-shaped mounting frame is fixed to the inner wall of the subway tunnel. The arc-shaped mounting frame is arc-shaped as a whole, and the curvature is the same as that of the inner wall of the subway tunnel. A support mechanism is slidably mounted on an arc-shaped mounting frame. Cables are placed and mounted on the support mechanism. The support mechanism includes a bracket and semi-circular blocks. An adjustment groove is provided in the bracket. A limit slider is slidably mounted in the adjustment groove. Two semi-circular blocks are symmetrically fixed to the limit slider. A compression spring is fixed in the adjustment groove. The other end of the compression spring is fixed to the limit slider.

[0006] Preferably, a limiting slide rail is fixedly connected to the front of the arc-shaped mounting bracket, and an installation groove is provided on the front of the limiting slide rail. An arc-shaped slider is fixedly connected to the rear of the bracket, and the arc-shaped slider slides in cooperation with the installation groove.

[0007] Preferably, the arc-shaped mounting bracket has several fixed feet fixed to both sides.

[0008] Preferably, a limiting groove is provided in the bracket, a return spring is fixedly connected in the limiting groove, a limiting pin is fixedly connected to the other end of the return spring, and a displacement handle is fixedly connected to the limiting pin.

[0009] Preferably, the mounting groove has several fixing holes, which cooperate with the displacement handle.

[0010] Preferably, a connecting rod is fixed between the two semicircular blocks, and a handle is fixed to the rear of each semicircular block.

[0011] Preferably, the bracket has a V-shaped groove, and the bracket cooperates with the semi-circular locking block.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. By designing the arc-shaped mounting bracket, the device can be installed in close contact with the inner edge of the subway tunnel. This facilitates installation inside the circular tunnel and keeps the device as close to the tunnel edge as possible, avoiding the occupation of passage space in the middle. This reduces interference with the passage of personnel or equipment during tunnel construction and is suitable for cable support inside subway tunnels.

[0013] 2. The cable is fixed by squeezing the spring to push the semi-circular clamp. The spring force can be used to clamp and fix cables of different thicknesses. When the cable needs to be re-laid, the semi-circular clamp can be pulled to move and release the cable fixation, which facilitates the high-frequency movement and laying of the cable during the construction process.

[0014] 3. Slide the arc-shaped slider into the mounting groove through the opening at the lower end of the limit slide rail. If additional cables are needed later in the construction process, only one support mechanism needs to be added and installed on the front of the arc-shaped mounting frame. No additional bracket is required. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the arc-shaped mounting bracket structure of the present invention; Figure 3 This is a schematic diagram of the support mechanism structure of the present invention; Figure 4 This is a cross-sectional view of the support mechanism of the present invention; Figure 5 This is a schematic diagram of the semi-circular card block structure of the present invention; Figure 6 This is a schematic diagram of the overall structure of the present invention during use.

[0016] In the diagram: 1. Arc-shaped mounting bracket; 101. Limiting slide rail; 102. Mounting groove; 103. Fixing hole; 104. Fixing foot; 2. Bracket; 201. Arc-shaped slider; 202. Adjusting groove; 3. Limiting groove; 301. Return spring; 302. Limiting pin; 303. Shifting handle; 4. Semi-circular locking block; 401. Limiting slider; 402. Connecting rod; 403. Handle; 404. Compression spring; 8. Cable; 9. Subway tunnel. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1-6 As shown, the present invention has the following specific embodiments.

[0019] Example 1 A cable support for subway construction includes a cable 8, a subway tunnel 9, and also includes: Arc-shaped mounting bracket 1 is fixed to the inner wall of subway tunnel 9. The arc-shaped mounting bracket 1 is arc-shaped as a whole, and the curvature is the same as the curvature of the inner wall of subway tunnel 9. The support mechanism is slidably mounted on the arc-shaped mounting bracket 1. The cable 8 is placed and mounted on the support mechanism. The support mechanism includes a bracket 2 and a semi-circular locking block 4. An adjustment groove 202 is provided in the bracket 2. A limit slider 401 is slidably mounted in the adjustment groove 202. Two semi-circular locking blocks 4 are symmetrically fixed to the limit slider 401. A compression spring 404 is fixedly connected in the adjustment groove 202. The other end of the compression spring 404 is fixedly connected to the limit slider 401.

[0020] In this implementation scheme, by designing the arc-shaped mounting bracket 1 as arc-shaped with the same curvature as the inner wall of the subway tunnel 9, the arc-shaped mounting bracket 1 can be fixedly installed against the inner walls on both sides, allowing the entire device to fit snugly against the inner edge of the subway tunnel 9. This facilitates installation inside the circular tunnel and positions the device as close as possible to the tunnel edge, avoiding the occupation of passage space in the middle and reducing interference with personnel or equipment passage during tunnel construction. Furthermore, after the cable 8 is placed on the bracket 2, the compression spring 404 provides a certain pushing force to the limiting slider 401. The limiting slider 401, under this pushing force, moves the semi-circular locking block 4, which secures the cable 8 to the bracket 2. Figure 1 As shown, the spring-driven thrust can firstly clamp and fix cables of different thicknesses 8. Secondly, as construction progresses and it is necessary to re-lay cables, the semi-circular clip 4 can be pulled to move and release the cable fixation, facilitating high-frequency movement and laying of cables during construction.

[0021] Example 2 The arc-shaped mounting bracket 1 is fixedly connected to the front of the limiting slide rail 101, and the front of the limiting slide rail 101 is provided with the mounting groove 102. The bracket 2 is fixedly connected to the rear of the arc-shaped slider 201, which slides in cooperation with the mounting groove 102. Several fixed feet 104 are fixedly connected to both sides of the arc-shaped mounting bracket 1.

[0022] In this embodiment, the bracket 2 can be slidably installed on the front of the arc-shaped mounting frame 1 by sliding the arc-shaped slider 201 with the mounting groove 102. The arc-shaped slider 201 can be slidably installed into the mounting groove 102 through the opening at the lower end of the limiting slide rail 101. According to the number of cables that need to be fixed, a suitable support mechanism can be installed on the front of the arc-shaped mounting frame 1. During the construction process, if additional cables are needed later, only one support mechanism needs to be added and installed on the front of the arc-shaped mounting frame 1. No additional new brackets are required. The fixing feet 104 and bolts can fix the arc-shaped mounting frame 1 to the inner wall of the subway tunnel 9.

[0023] Example 3 The bracket 2 has a limiting groove 3, and a return spring 301 is fixedly connected in the limiting groove 3. The other end of the return spring 301 is fixedly connected to a limiting pin 302. A shift handle 303 is fixedly connected to the limiting pin 302. Several fixing holes 103 are opened in the mounting slide 102. The fixing holes 103 and the shift handle 303 cooperate with each other. A connecting rod 402 is fixedly connected between two semi-circular blocks 4. A handle 403 is fixedly connected to the back of the semi-circular blocks 4. The bracket 2 has a V-shaped groove on the top. The bracket 2 and the semi-circular blocks 4 cooperate with each other.

[0024] In this embodiment, the V-shaped groove on the bracket 2 facilitates the direct placement of the cable 8 on the bracket 2. With the help of the semi-circular clip 4, the cable 8 can be fixed on the bracket 2 by pressing it from one side. The return spring 301 can provide a certain pushing force to the limit pin 302. When the limit pin 302 is pushed, it will insert into the fixing hole 103, thereby fixing the arc-shaped slider 201 inside the mounting groove 102, fixing the position of the support mechanism, and preventing the position from changing when supporting the cable 8 later. The shift handle 303 can be used to move the limit pin 302.

[0025] The working principle and usage process of this invention are as follows: First, the arc-shaped mounting bracket 1 needs to be fixed to the inner wall of the subway tunnel 9 using bolts passing through the fixing feet 104, as shown below. Figure 6 As shown, the arc-shaped slider 201 is then slidably installed into the mounting groove 102 from the lower opening of the limiting slide rail 101. Depending on the number of cables to be fixed, a suitable support mechanism is installed on the front of the arc-shaped mounting bracket 1, and the spacing between each support mechanism is adjusted. Then, the handle 403 is held and the semi-circular locking block 4 is pulled to move away from the arc-shaped slider 201, thereby creating a suitable gap above the bracket 2. At this time, the cable 8 can be placed on the bracket 2 through this gap. Then, the handle 403 is released and the semi-circular locking block 4 will reset and clamp the cable 8 under the push of the compression spring 404, thereby fixing the cable 8 on the bracket 2 and achieving fixed support for the bracket 2.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable support for subway construction, comprising a cable (8) and a subway tunnel (9), characterized in that, Also includes: Arc-shaped mounting bracket (1) is fixed to the inner wall of the subway tunnel (9). The arc-shaped mounting bracket (1) is arc-shaped as a whole, and the curvature is the same as the curvature of the inner wall of the subway tunnel (9). The support mechanism is slidably mounted on the arc-shaped mounting bracket (1), and the cable (8) is placed and mounted on the support mechanism. The support mechanism includes a bracket (2) and a semi-circular locking block (4). An adjustment groove (202) is provided in the bracket (2). A limit slider (401) is slidably mounted in the adjustment groove (202). Two semi-circular locking blocks (4) are symmetrically fixed to the limit slider (401). A compression spring (404) is fixed in the adjustment groove (202). The other end of the compression spring (404) is fixed to the limit slider (401).

2. The cable support for subway construction as described in claim 1, characterized in that: The arc-shaped mounting bracket (1) is fixedly connected to a limiting slide rail (101) on the front. The limiting slide rail (101) has an installation groove (102) on the front. The bracket (2) is fixedly connected to an arc-shaped slider (201) on the back. The arc-shaped slider (201) slides in cooperation with the installation groove (102).

3. The cable support for subway construction as described in claim 2, characterized in that: The arc-shaped mounting bracket (1) has several fixed feet (104) fixed on both sides.

4. A cable bracket for subway construction as described in claim 2, characterized in that: The bracket (2) has a limiting groove (3) inside, and a return spring (301) is fixedly connected inside the limiting groove (3). The other end of the return spring (301) is fixedly connected to a limiting pin (302), and a shift handle (303) is fixedly connected to the limiting pin (302).

5. A cable bracket for subway construction as described in claim 4, characterized in that: The mounting groove (102) has several fixing holes (103) which cooperate with the shift handle (303).

6. A cable bracket for subway construction as described in claim 1, characterized in that: A connecting rod (402) is fixed between the two semicircular blocks (4), and a handle (403) is fixed to the back of the semicircular blocks (4).

7. A cable bracket for subway construction as described in claim 1, characterized in that: The bracket (2) has a V-shaped groove on its surface, and the bracket (2) cooperates with the semi-circular locking block (4).

Images