Overhead installation guiding device in cable well

Abstract

The invention belongs to the technical field of cable mounting equipment, and particularly relates to an overhead mounting guide device in a cable well, which comprises a mounting plate and two groups of elastic guide devices mounted on the mounting plate. Each elastic guide device comprises a supporting wheel and two lateral wheels, a penetrating-out groove is formed in the mounting plate, and the wheel face of each supporting wheel is inserted into the corresponding penetrating-out groove and protrudes outwards. The two lateral wheels are vertically installed on the two sides of the supporting wheel and used for clamping the cable inwards together. The supporting wheels and the lateral wheels on the two sides form a three-point clamping structure, the friction coefficient is reduced through cooperation with the autorotation function, laying traction force is reduced, meanwhile, deviation or groove jumping in the cable traction process is prevented, and construction efficiency is improved. The combined structure of the transverse supporting spring columns and the sliding grooves achieves vertical buffering, the cooperation of the lateral supporting spring columns and the adjusting grooves achieves lateral buffering, traction impact force is absorbed through double buffering, sheath abrasion caused by hard dragging is avoided, and the service life of the cable is prolonged.

Description

Technical Field

[0001] This invention relates to the field of cable installation equipment technology, specifically to an overhead installation guidance device in a cable well. Background Technology

[0002] The current cable laying at the corners of cable wells faces some defects, such as: Traditional guiding devices are mostly linear supports, which cannot fit the 90° or inclined corner structure inside the well, causing the cable to form a hard bend at the corner, which can easily cause the insulation layer to crack. In addition, the existing guide structure adopts a rigid fixed structure, and the instantaneous tension during cable traction is directly transmitted to the well wall, which not only increases the laying traction force, but also causes wear on the cable sheath due to hard dragging. Some devices rely on on-site welding supports or expansion-type fixing columns, which have long construction cycles and pose safety risks during hot work. They also cannot accommodate the clamping requirements of cables of different sizes. Summary of the Invention

[0003] The purpose of this invention is to provide an overhead installation guidance device in a cable well to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an overhead installation guide device for cable wells, comprising a mounting plate and two sets of elastic guide devices mounted on the mounting plate. Each elastic guide device includes a support wheel and two side wheels. A through-groove is provided on the mounting plate, and the wheel surface of the support wheel is inserted into the through-groove and protrudes outward. The two side wheels are vertically mounted on both sides of the support wheel for clamping the cable inward.

[0005] Support frames are mounted on the support wheels, and a support block is set between the two support frames, with the support frames slidably installed within the support block. Lateral support spring columns are symmetrically mounted on the support frames, with the lateral support spring columns located on the left and right sides of the support wheels respectively.

[0006] The mounting plate is equipped with an adjustment seat near the side wheel. The adjustment seat has an adjustment groove. A side support spring column is installed on the side of the adjustment seat near the support frame, and the side wheel is connected to the side support spring column.

[0007] Preferably, the mounting plate is L-shaped and consists of a vertical plate and a wing plate. The vertical plate is set vertically, and the wing plate is set at the bottom of the vertical plate and extends downward at an angle to adapt to the corner position inside the well.

[0008] Preferably, the support block is provided with a connecting rod that is fixed to the mounting plate. Sliding grooves are provided on both sides of the support block near the support frames, and sliding shafts are installed on the support frames near the sliding grooves, with the sliding shafts slidably installed within the sliding grooves.

[0009] Preferably, the support wheel lifts the cable outward while also having a self-rotation and buffering effect, utilizing the lateral support spring column to provide elastic support for the support wheel.

[0010] Preferably, a fixed rod is provided at one end of the lateral support spring column away from the adjustment groove, and a sliding rod is provided at the other end. The sliding rod is slidably installed in the adjustment groove, and its end is connected to the lateral wheel. While clamping the cable inward, the lateral wheel also has a self-rotation and lateral buffering effect, assisting in the guidance and movement of the cable.

[0011] Preferably, the lateral support spring column is provided with a rear side plate on the side away from the mounting plate, and bolts are installed between the rear side plate and the mounting plate, with the ends of the bolts extending to the inner wall of the cable well for fixed installation.

[0012] Compared with the prior art, the beneficial effects of the present invention are: Improved corner adaptability: The vertical plate and inclined wing plate structure of the L-shaped mounting plate precisely fit the corner contour inside the well, so that the cable guidance path meets the minimum bending radius requirement, solving the problem of hard bending of traditional straight support and reducing the damage rate of cable insulation layer. Two-way elastic buffer protection: The combination of horizontal support spring columns and sliding grooves achieves vertical buffering, while the cooperation of lateral support spring columns and adjustment grooves achieves lateral buffering. The double buffering absorbs traction impact force, avoids wear on the outer sheath caused by hard dragging, and extends the service life of the cable.

[0013] Enhanced clamping stability: The support wheel and the two side wheels form a three-point clamping structure, which, together with the self-rotation function, reduces the coefficient of friction, reduces the laying traction force, and prevents the cable from deviating or jumping out of the trough during traction, thereby improving construction efficiency. Optimized installation convenience: The combination of bolts and rear side plate for fixing eliminates the need for on-site welding or complex drilling, adapts to well walls of different thicknesses, reduces installation time to 1 / 3 of traditional devices, and avoids the risk of hot work operations. Wide compatibility: The elastic spring column's telescopic characteristics can adapt to cables of different specifications with diameters of 10-100mm, eliminating the need to replace special clamps and reducing construction costs. Reliable structural stability: The rigid connection between the support block and the mounting plate, and the sliding fit between the sliding shaft and the sliding groove, ensure that the device has no risk of loosening or falling off under long-term stress, thus solving the defects of existing devices that are not stable and are prone to falling off. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention.

[0015] Figure 2 This is a side perspective view of the present invention.

[0016] Figure 3This is a three-dimensional schematic diagram of the elastic guiding device of the present invention.

[0017] Figure 4 For the present invention Figure 3 Enlarged 3D schematic diagram of part A in the diagram.

[0018] In the diagram: 1 Mounting plate, 1-1 Adjusting seat, 1-2 Rear side plate, 1-3 Bolt, 1-4 Adjusting groove, 1-5 Lateral support spring column; 2 Support wheel; 3 Side wheel; 4 Support block, 4-1 Sliding groove; 5 Lateral support spring column; 6 Support frame. Detailed Implementation

[0019] Please see Figure 1-4 The present invention provides the following technical solution: an overhead installation guide device in a cable well, comprising an installation plate 1 and two sets of elastic guide devices installed on the installation plate 1.

[0020] Mounting plate 1 is L-shaped and consists of a vertical plate and a wing plate. The vertical plate is set vertically, and the wing plate is set at the bottom of the vertical plate and extends downward at an angle to adapt to the corner position inside the well and guide the cable to pass smoothly through the corner position.

[0021] Each flexible guiding device includes a support wheel 2 and two side wheels 3. The mounting plate 1 has a through-slot, and the wheel surface of the support wheel 2 is inserted into the through-slot and protrudes outward. The two side wheels 3 are vertically installed on both sides of the support wheel 2. The support wheel 2 and the side wheels 3 together clamp the cable inward, making the passage of the cable at corners smoother.

[0022] A support frame 6 is installed on the support wheel 2, and a support block 4 is set between the two support frames 6. A connecting rod that is fixed to the mounting plate 1 is set on the support block 4.

[0023] The support block 4 is provided with sliding grooves 4-1 near the two side support frames 6. The support frame 6 is provided with a sliding shaft near the sliding groove 4-1, and the sliding shaft is slidably installed in the sliding groove 4-1.

[0024] The support frame 6 is symmetrically equipped with transverse support spring columns 5, which are located on the left and right sides of the support wheel 2. When the support wheel 2 is subjected to force, the force is transmitted to the transverse support spring columns 5. At the same time, the sliding shaft sliding in the sliding groove 4-1 also assists in the smooth movement of the support wheel 2. While the support wheel 2 lifts the cable outward, it also has a self-rotation and buffering effect. The elastic support of the support wheel 2 by the transverse support spring columns 5 provides a certain buffering effect for the cable during movement, avoiding mechanical damage caused by hard dragging and friction.

[0025] An adjustment seat 1-1 is provided on the mounting plate 1 near the side wheel 3. An adjustment groove 1-4 is provided on the adjustment seat 1-1. A side support spring column 1-5 is installed on the side of the adjustment seat 1-1 near the support frame 6.

[0026] The lateral support spring column 1-5 has a fixed rod at one end away from the adjusting groove 1-4 and a sliding rod at the other end. The sliding rod is slidably installed in the adjusting groove 1-4, and its end is connected to the lateral wheel 3. While clamping the cable inward, the lateral wheel 3 also has a self-rotation and lateral buffering effect, assisting in the guidance and movement of the cable and avoiding mechanical damage caused by hard dragging and friction.

[0027] A rear side plate 1-2 is provided on the side of the transverse support spring column 5 away from the mounting plate 1. A bolt 1-3 is installed between the rear side plate 1-2 and the mounting plate 1, and the end of the bolt 1-3 extends to the inner wall of the cable well to complete the fixed installation.

[0028] Working principle: Installation and fixing stage Utilizing the L-shaped structure of mounting plate 1, the vertical plate is attached to the vertical inner wall of the cable well, and the wing plate is naturally attached to the inclined corner surface. The bolts 1-3 between the rear side plate 1-2 and mounting plate 1 penetrate the concrete layer of the well wall to complete the rigid fixation of the device and ensure the installation stability at the corner. The support block 4 is fixed to the mounting plate 1 by the connecting rod, forming the core support base of the elastic guide device and providing an installation reference for the lateral buffer mechanism. Cable guiding and buffering phase Clamping and positioning: When the cable enters the corner, it first contacts the wheel surface of the support wheel 2 of the two sets of elastic guide devices. The support wheel 2 protrudes outward through the through groove to ensure lifting contact. The side wheels 3 on both sides clamp inward under the pre-tightening force of the side support spring columns 1-5, forming a three-point positioning structure of lower support + side clamping to avoid cable deviation. Longitudinal buffer transmission: When the cable pull generates a vertical force, the support wheel 2 transmits the force to the transverse support spring column 5 through the support frame 6. At the same time, the sliding shaft on the support frame 6 slides linearly along the sliding groove 4-1 of the support block 4 to achieve force dispersion transmission. The elastic deformation of the transverse support spring column 5 absorbs the instantaneous impact force and avoids hard contact. Lateral buffer adjustment: When the cable generates lateral force due to size difference or traction deviation, the lateral wheel 3 pushes the sliding rod of the lateral support spring column 1-5 to slide along the adjustment groove 1-4 of the adjustment seat 1-1. The extension and contraction deformation of the spring column compensates for the lateral displacement. At the same time, the lateral wheel 3 and the support wheel 2 rotate synchronously, converting sliding friction into rolling friction and reducing the coefficient of friction. Corner adaptation guidance: The inclined extension structure of the wing plate of the mounting plate 1 enables the two sets of elastic guide devices to form a smooth arc guide path. Under the synergistic action of the support wheel 2 and the side wheel 3, the cable passes through the corner along the preset arc, avoiding damage from hard dragging.

[0029] Dynamic adaptation phase When the cable size changes, the elastic restoring force of the transverse support spring column 5 and the lateral support spring columns 1-5 automatically adjusts the lifting height of the support wheel 2 and the clamping distance of the lateral wheel 3, without the need for disassembly and adjustment, thus achieving compatible guidance for cables of different specifications.

Claims

1. An overhead installation guiding device in a cable well, comprising a mounting plate (1) and two sets of elastic guiding devices mounted on the mounting plate (1), characterized in that: Each elastic guide device includes a support wheel (2) and two side wheels (3). A through groove is provided on the mounting plate (1), and the wheel surface of the support wheel (2) is inserted into the through groove and protrudes outward. The two side wheels (3) are vertically installed on both sides of the support wheel (2) to clamp the cable inward together. A support frame (6) is installed on the support wheel (2), and a support block (4) is set in the middle of the two support frames (6), and the support frame (6) is slidably installed in the support block (4); a transverse support spring column (5) is symmetrically installed on the support frame (6), and the transverse support spring column (5) is located on the left and right sides of the support wheel (2); An adjustment seat (1-1) is provided on the mounting plate (1) near the side wheel (3). An adjustment groove (1-4) is provided on the adjustment seat (1-1). A side support spring column (1-5) is installed on the side of the adjustment seat (1-1) near the support frame (6), and the side wheel (3) is connected to the side support spring column (1-5).

2. The overhead installation guiding device in a cable well according to claim 1, characterized in that: The mounting plate (1) is L-shaped and consists of a vertical plate and a wing plate. The vertical plate is set vertically, and the wing plate is set at the bottom of the vertical plate and extends downward at an angle to adapt to the corner position inside the well.

3. The overhead installation guiding device in a cable well according to claim 1, characterized in that: The support block (4) is provided with a connecting rod that is fixed to the mounting plate (1); the support block (4) is provided with a sliding groove (4-1) near the two side support frames (6), and a sliding shaft is installed near the sliding groove (4-1) of the support frame (6), and the sliding shaft is slidably installed in the sliding groove (4-1).

4. The overhead installation guiding device in a cable well according to claim 1, characterized in that: While the support wheel (2) lifts the cable outward, it also has the effects of rotation and buffering, and the support wheel (2) is elastically supported by the horizontal support spring column (5).

5. The overhead installation guiding device in a cable well according to claim 1, characterized in that: A fixed rod is provided at one end of the lateral support spring column (1-5) away from the adjustment groove (1-4), and a sliding rod is provided at the other end. The sliding rod is slidably installed in the adjustment groove (1-4), and the end of the sliding rod is connected to the lateral wheel (3). While the lateral wheel (3) clamps the cable inward, it also has the effects of rotation and lateral buffering, which assists in guiding and moving the cable.

6. The overhead installation guiding device in a cable well according to claim 1, characterized in that: A rear side plate (1-2) is provided on the side of the transverse support spring column (5) away from the mounting plate (1). A bolt (1-3) is installed between the rear side plate (1-2) and the mounting plate (1), and the end of the bolt (1-3) extends to the inner wall of the cable well to complete the fixed installation.

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