Device for positioning cable support in electric power tunnel

Abstract

The utility model discloses a device for positioning a cable support in an electric power tunnel. The device comprises a vertical rod; a first cross rod and a second cross rod which are perpendicular to the vertical rod are arranged on the vertical rod; the first cross rod is arranged above the second cross rod; the vertical rod is located in the center of the first transverse rod and the center of the second transverse rod. The first cross rod and the vertical rod are arranged in a relative sliding manner; the second cross rod is fixedly connected with the vertical rod; movable rods are slidably connected into the left side and the right side of the first transverse rod; and a scale sticker is arranged on the vertical rod. Through cooperation of the vertical rod, the scale sticker, the first cross rod, the second cross rod, the movable rod and other parts, the cable support can be rapidly and accurately positioned, construction efficiency is effectively improved, manpower input is reduced, the construction period is shortened, operation is easy, and safety is high.

Description

Technical Field

[0001] This utility model relates to the field of tunnel technology, and more specifically to a device for positioning cable supports in power tunnels. Background Technology

[0002] The main construction method for locating cable supports in existing power tunnels is to manually re-measure the posture of the formed tunnel segments and the tunnel cross-section, and then mark the plane position and elevation of the support to be installed based on the formed tunnel. However, power tunnels are small and subject to great site restrictions, which results in a large amount of manpower required for the construction process, a long construction period, and large cumulative errors of instruments over long distances, making it impossible to guarantee the accuracy of cable support installation.

[0003] Therefore, how to provide a device for positioning cable supports in power tunnels that can improve the accuracy of cable support installation is one of the technical problems that urgently need to be solved in this field. Utility Model Content

[0004] In view of this, the present invention provides a device for positioning cable supports in power tunnels, the purpose of which is to solve the problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A device for positioning cable supports in a power tunnel includes: a vertical pole; a first horizontal bar and a second horizontal bar arranged perpendicularly to the vertical pole; the first horizontal bar being positioned above the second horizontal bar; the vertical pole being located at the center of the first horizontal bar and the second horizontal bar; the first horizontal bar being slidably arranged relative to the vertical pole; the second horizontal bar being fixedly connected to the vertical pole; movable rods being slidably connected to the left and right sides of the first horizontal bar; and a scale sticker being provided on the vertical pole.

[0007] Preferably, a first through hole is provided at the middle position of the top of the first horizontal bar; the vertical bar passes through the first through hole; first sliding grooves are provided on the outer walls of the left and right sides of the vertical bar; pulleys are rotatably connected to the inner walls of the left and right sides of the first through hole; the pulleys are slidably connected in the corresponding first sliding grooves.

[0008] Preferably, the first horizontal bar has a threaded hole corresponding to the vertical bar; a fastening bolt is threaded into the threaded hole.

[0009] Preferably, two first right-angle brackets are fixedly connected to the bottom end of the first crossbar; the two first right-angle brackets are symmetrically arranged on the left and right sides of the vertical bar.

[0010] Preferably, two second right-angle brackets are fixedly connected to the bottom end of the second crossbar; the two second right-angle brackets are symmetrically arranged on the left and right sides of the vertical bar, and both second right-angle brackets are fixedly connected to the vertical bar.

[0011] Preferably, a baffle is provided at the top of the vertical rod.

[0012] Preferably, both the first crossbar and the second crossbar are equipped with a level at their top ends.

[0013] Compared with the prior art, the present invention has achieved the following technical effects: the present invention, through the cooperation of components such as vertical rod, first horizontal rod, second horizontal rod and movable rod, can realize the rapid and accurate positioning of cable bracket, effectively improve construction efficiency, reduce manpower input, shorten construction cycle, and is simple to operate and highly safe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a device for positioning cable supports in a power tunnel according to the present invention.

[0015] Figure 2 This is a schematic diagram of the cable bracket positioning process according to the present invention;

[0016] In the diagram: 1. Vertical bar; 2. First horizontal bar; 3. Second horizontal bar; 4. Movable bar; 5. Scale sticker; 6. First right-angle bracket; 7. Second right-angle bracket; 8. Baffle; 9. Level. Detailed Implementation

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

[0018] Example

[0019] Reference Figure 1-2As shown, this utility model discloses a device for positioning cable supports in a power tunnel, comprising: a vertical rod 1; a first horizontal rod 2 and a second horizontal rod 3 arranged perpendicularly to the vertical rod 1; the first horizontal rod 2 being positioned above the second horizontal rod 3; the vertical rod 1 being located at the center of the first horizontal rod 2 and the second horizontal rod 3; the first horizontal rod 2 being slidably arranged relative to the vertical rod 1; the second horizontal rod 3 being fixedly connected to the vertical rod 1; movable rods 4 being slidably connected to the inner sides of the first horizontal rod 2; with the centerline of the vertical rod 1 as a reference, the lengths of the left and right parts of the second horizontal rod 3 are the same, and the lengths of the left and right parts of the second horizontal rod 3 are the vertical distances from the inner wall of the lowest cable support segment to the centerline of the tunnel; with the centerline of the vertical rod 1 as a reference, the lengths of the left and right parts of the first horizontal rod 2 are the same, and the lengths of the left and right parts of the first horizontal rod 2 .... The lengths of the two right parts are the vertical distances from the inner wall of the uppermost cable support segment to the tunnel centerline; the length of the vertical rod 1 is consistent with the designed height from the bottom of the tunnel centerline to the uppermost cable support; a scale sticker 5 is pasted on the front of the vertical rod 1; when in use, the device is erected vertically in the middle of the tunnel, and the position of the lowermost cable support can be determined by the second horizontal rod 3 to keep the device stable. Then, the position of the uppermost cable support can be determined by adjusting the first horizontal rod 2 to the top of the vertical rod 1. Then, according to the designed clearance between the two cable supports, the scale sticker 5 on the vertical rod 1 is used to adjust the first horizontal rod 2 and the movable rod 4 to determine the position of the remaining cable supports. Thus, without re-measuring the segment posture and tunnel cross-section, the installation position and elevation of the cable support can be accurately located on each ring of segments.

[0020] The above technical solution, through the cooperation of components such as vertical rods, first horizontal rods, second horizontal rods and movable rods, can achieve rapid and accurate positioning of cable supports, effectively improving construction efficiency, reducing manpower input, shortening the construction cycle, and is simple to operate and highly safe.

[0021] In this embodiment, a first through hole is provided at the middle position of the top of the first horizontal bar 2, which passes through the upper and lower end faces of the first horizontal bar 2; the vertical bar 1 passes through the first through hole; the outer walls on the left and right sides of the vertical bar 1 are provided with first sliding grooves in the shape of a mountain; pulleys are rotatably connected to the inner walls on the left and right sides of the first through hole; the pulleys are slidably connected in the corresponding first sliding grooves.

[0022] In this embodiment, the first crossbar 2 has second sliding grooves on both the left and right sides; the movable rod 4 is slidably connected in the second sliding groove; the length of the movable rod 4 is less than the length of the first crossbar 2, so that the movable rod 4 can be completely stored in the second sliding groove.

[0023] In this embodiment, the zero mark line on the scale sticker 5 is flush with the bottom of the second horizontal bar 3.

[0024] In this embodiment, a threaded hole corresponding to the vertical rod 1 is provided on the rear side of the first horizontal bar 2; a fastening bolt is threaded into the threaded hole; when it is necessary to adjust the position of the first horizontal bar 2, the fastening bolt is loosened, and the first horizontal bar 2 can be moved up and down. After the first horizontal bar 2 is moved to a suitable position, the fastening bolt is tightened so that the stud end of the fastening bolt abuts against the outer wall of the vertical rod 1, thereby fixing the first horizontal bar 2.

[0025] In this embodiment, two first right-angle brackets 6 are fixedly connected to the bottom end of the first horizontal bar 2; the two first right-angle brackets 6 are symmetrically arranged on the left and right sides of the vertical bar 1, and the two first right-angle brackets 6 are arranged close to the vertical bar 1.

[0026] In this embodiment, two second right-angle brackets 7 are fixedly connected to the bottom end of the second horizontal bar 3; the two second right-angle brackets 7 are symmetrically arranged on the left and right sides of the vertical bar 1, and both second right-angle brackets 7 are fixedly connected to the vertical bar 1, so that the second horizontal bar 3 and the vertical bar 1 remain perpendicular.

[0027] In this embodiment, a baffle 8 is provided at the top of the vertical rod 1 to prevent the first horizontal rod 2 from falling off.

[0028] In this embodiment, the top ends of the first crossbar 2 and the second crossbar 3 are each provided with two horizontal rulers 9 symmetrically arranged on the left and right.

[0029] In this embodiment, the two horizontal rulers 9 on the first horizontal bar 2 and the two horizontal rulers 9 on the second horizontal bar 3 are both positioned close to the vertical bar 1.

[0030] In this embodiment, a second through hole is provided at the middle position of the top of the second horizontal bar 3, which passes through the upper and lower end faces of the second horizontal bar 3; the vertical bar 1 passes through the second through hole; the second horizontal bar 3 and the vertical bar 1 are fixedly connected together by welding.

[0031] This utility model features a geometrically circular tunnel cross-section with a designed inner diameter of 3.6m. During the shield machine assembly process, misalignment is within the allowable error range, and the ellipticity of the tunnel segments also meets design and specification requirements. Based on this, this device is used to locate the position and elevation of the cable supports. Using a three-point positioning method, the device is placed on the tunnel segment. After adjusting the device to center the bubble level on the spirit level and determining the centerline of the tunnel (vertical rod centerline), the position of the lowest cable support can be determined using the second horizontal bar 3. Then, based on the designed clearance between the two cable supports, the scale sticker 5 on the vertical rod 1 is used to adjust the first horizontal bar 2 and the movable rod 4 to determine the positions of the remaining cable supports.

[0032] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A device for positioning cable supports in an electrical tunnel, characterized in that, include: A vertical rod (1); the vertical rod (1) is provided with a first horizontal bar (2) and a second horizontal bar (3) arranged perpendicularly to the vertical rod (1); the first horizontal bar (2) is arranged above the second horizontal bar (3); the vertical rod (1) is located at the center of the first horizontal bar (2) and the second horizontal bar (3); the first horizontal bar (2) is slidably arranged relative to the vertical rod (1); the second horizontal bar (3) is fixedly connected to the vertical rod (1); movable rods (4) are slidably connected inside the left and right sides of the first horizontal bar (2); the vertical rod (1) is provided with a scale sticker (5).

2. The device for positioning cable supports in a power tunnel according to claim 1, characterized in that, A first through hole is provided at the middle position of the top of the first horizontal bar (2); the vertical bar (1) passes through the first through hole; a first sliding groove is provided on the outer wall of the left and right sides of the vertical bar (1); a pulley is rotatably connected to the inner wall of the left and right sides of the first through hole; the pulley is slidably connected in the corresponding first sliding groove.

3. The device for positioning cable supports in a power tunnel according to claim 1, characterized in that, The first horizontal bar (2) has a threaded hole corresponding to the vertical bar (1); a fastening bolt is threaded into the threaded hole.

4. The device for positioning cable supports in a power tunnel according to claim 1, characterized in that, The bottom end of the first horizontal bar (2) is fixedly connected to two first right angle brackets (6); the two first right angle brackets (6) are symmetrically arranged on the left and right sides of the vertical bar (1).

5. The device for positioning cable supports in a power tunnel according to claim 1, characterized in that, The bottom end of the second horizontal bar (3) is fixedly connected to two second right-angle brackets (7); the two second right-angle brackets (7) are symmetrically arranged on the left and right sides of the vertical bar (1), and both second right-angle brackets (7) are fixedly connected to the vertical bar (1).

6. The device for positioning cable supports in a power tunnel according to claim 1, characterized in that, The top of the vertical rod (1) is provided with a baffle (8).

7. The device for positioning cable supports in a power tunnel according to claim 1, characterized in that, The top of both the first crossbar (2) and the second crossbar (3) are equipped with a level (9).

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