Cable auxiliary installation device

Abstract

An auxiliary cable installation device belongs to the technical field of cable construction and comprises an outer pipe, a buffer protection layer and an inner pipe, the lower portion of the inner pipe is fixedly connected with the buffer protection layer, the two sides and the upper portion of the inner pipe are fixedly connected with the buffer protection layer through buffer columns, and the buffer columns and the buffer protection layer are both of a rubber structure. The buffer column is arranged on the outer pipe, vibration energy generated when a vehicle passes through the buffer column can be absorbed and dispersed, due to the high damping performance and the non-linear characteristic of rubber, the buffer column is lower in natural vibration and resonance frequency and frequency amplitude, has a better vibration isolation effect and is beneficial to cable protection, the buffer protection layer is used in cooperation, the dual vibration reduction and isolation protection effects are achieved, and when the outer pipe is pressed to deform, the vibration isolation effect is good. The buffering protection layer can absorb energy through deformation and isolate the inner pipe from the outer pipe, the primary protection effect is achieved, meanwhile, the buffering columns are matched with the buffering protection layer through deformation to further absorb energy, collision between the upper portion of the outer pipe and the upper portion of the inner pipe is limited, and the inner pipe is protected.

Description

Technical Field

[0001] This utility model relates to the field of cable construction technology, and in particular to a cable auxiliary installation device. Background Technology

[0002] At construction sites, cable laying sometimes requires crossing the road surface. Generally, the cable is threaded into a steel pipe, and a groove is dug in the road surface. The cable and steel pipe are placed in the groove, and fine sand and soil are backfilled into the groove to conceal the cable crossing the road surface and protect it with soil and steel pipe.

[0003] When large vehicles pass by, steel pipes may deform, causing damage to the internal cables. Auxiliary devices have been developed that install a sleeve inside the steel pipe, with a spring and a buffer layer between the sleeve and the steel pipe. The cable is run through the sleeve. In actual use, when the outer steel pipe is deformed by pressure, the spring and buffer layer can be used to cushion it, preventing compression of the sleeve and effectively protecting the cable inside the sleeve.

[0004] Existing auxiliary devices place springs around the bushing to support it. However, these springs exhibit severe self-vibration. When a vehicle passes over the cable, the springs above and below the bushing resonate at high frequencies and amplitudes, exacerbating the vibration. This causes the bushing and the cable inside to sway up and down, potentially damaging the cable's conductors, insulation, and other components, or causing connected equipment to shut down. Furthermore, the spring structure has a short lifespan and requires ample installation space. Utility Model Content

[0005] To address the technical problems of existing cable auxiliary installation devices in the background art, such as poor vibration reduction capability and easy damage to cables, this utility model provides a cable auxiliary installation device.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides a cable auxiliary installation device, including an outer tube, a buffer protective layer fixedly installed on the inner wall of the outer tube, an inner tube installed inside the buffer protective layer, the lower part of the inner tube fixedly connected to the buffer protective layer, and the two sides and the upper part of the inner tube fixedly connected to the buffer protective layer through buffer columns. Both the buffer columns and the buffer protective layer are rubber structures. The use of buffer columns instead of spring structures and the placement of buffer columns only on the two sides and the upper part of the inner tube helps to absorb and disperse vibration energy. Due to the high damping and nonlinear characteristics of rubber, the natural and resonant frequencies and amplitudes of the buffer columns are lower, resulting in better vibration isolation and helping to protect the cable. In conjunction with the use of the buffer protective layer, it plays a dual role in vibration reduction and isolation protection. When the outer tube is deformed by pressure, the buffer protective layer can absorb energy through deformation and isolate the inner tube from the outer tube, playing a primary protection role. At the same time, the buffer columns further absorb energy through deformation in conjunction with the buffer protective layer and limit the collision between the upper part of the outer tube and the upper part of the inner tube, thereby protecting the inner tube.

[0008] Preferably, the buffer protective layer is a tubular structure, and the buffer column extends along the axial direction of the buffer protective layer, increasing the contact area between the buffer column and the inner tube, resulting in better support and more dispersed force, and better vibration reduction and buffering effect. The buffer column is a hollow structure, which makes it easier for the buffer column to deform.

[0009] Preferably, the sidewalls of the buffer column have a continuous wave-shaped structure in the vertical direction, which allows for better deformation under stress and thus more effective energy absorption and buffering.

[0010] Preferably, a limiting part is fixedly provided on the bottom inner wall of the buffer protective layer, and the lower part of the inner tube is fixedly set in the limiting part, which expands the contact area between the buffer protective layer and the lower outer wall of the inner tube and effectively improves the connection between the inner tube and the buffer protective layer.

[0011] Preferably, the upper opening of the limiting part and the inner diameter of the limiting part are the same as the outer diameter of the inner tube, which facilitates the assembly between the inner tube and the limiting part.

[0012] Preferably, the inner tube is fixedly provided with several isolation tubes, which extend along the axial direction of the inner tube to facilitate the installation of multiple cables and avoid interference between adjacent cables.

[0013] Preferably, connecting plates are fixedly provided on the outer walls of both ends of the outer tube along its circumference, and bolt holes are provided on the connecting plates, so that the fixed connection of the ends of two adjacent outer tubes can be achieved by bolt connection.

[0014] Preferably, a plug is fixedly provided on one end face of the outer tube, and a slot is provided on the other end face of the outer tube. Both the plug and the slot are arranged circumferentially along the outer tube. Through the cooperation between the plug and the slot, quick docking between two adjacent outer tubes can be achieved, thereby improving the connection efficiency.

[0015] As can be seen from the above technical solutions, the advantages of this utility model are:

[0016] 1. Using rubber-structured buffer columns instead of spring structures, and placing buffer columns only on both sides and above the inner tube, helps absorb and disperse the vibration energy from vehicles passing overhead. Furthermore, due to the high damping and non-linear characteristics of rubber, the buffer columns have lower natural and resonant frequencies and amplitudes, resulting in better vibration isolation and protecting the cable. Combined with the use of a buffer protective layer, it provides dual vibration reduction and isolation protection. When the outer tube is deformed under pressure, the buffer protective layer absorbs energy through deformation and isolates the inner and outer tubes, providing primary protection. Simultaneously, the buffer columns, through deformation and in conjunction with the buffer protective layer, further absorb energy and limit collisions between the upper parts of the outer and inner tubes, thus protecting the inner tube.

[0017] 2. The buffer column extends along the axial direction of the buffer protective layer, increasing the contact area between the buffer column and the inner tube, resulting in better support and more dispersed force, thus improving the vibration reduction and buffering effect.

[0018] 3. A limiting part is fixedly provided on the bottom inner wall of the buffer protective layer, and the lower part of the inner tube is fixedly set in the limiting part, which expands the contact area between the buffer protective layer and the lower outer wall of the inner tube, effectively improving the connection between the inner tube and the buffer protective layer. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the cable auxiliary installation device according to one or more embodiments of the present invention;

[0021] Figure 2 This is a front view structural schematic diagram of the cable auxiliary installation device according to one or more embodiments of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the buffer mechanism according to one or more embodiments of the present invention. Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the structure of the buffer mechanism according to one or more embodiments of the present invention. Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the outer tube of the present invention according to one or more embodiments;

[0025] The components represented by the various reference numerals in the diagram are:

[0026] 1. Outer tube; 2. Inner tube; 3. Buffer protective layer; 4. Buffer column; 5. Limiting part; 6. Insert block; 7. Slot; 8. Connecting plate; 9. Folded edge; 10. Isolation tube. Detailed Implementation

[0027] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0028] In a typical embodiment of this utility model, such as Figures 1-2 As shown, a cable auxiliary installation device is proposed, including: an outer tube 1, an inner tube 2, and a buffer mechanism. Both the outer tube 1 and the inner tube 2 are metal tube structures. The outer tube 1 serves as a primary protective support, while the inner tube 2 is used to house the cable, protecting it and exchanging heat with it to facilitate heat dissipation in the soil. The buffer mechanism is located between the outer tube 1 and the inner tube 2 to provide buffer protection and prevent the inner tube 2 from being crushed and damaged due to deformation of the outer tube 1. At the same time, the inner tube 2 also serves as a secondary protective support, effectively preventing damage to the cable inside the inner tube 2.

[0029] The cushioning mechanism includes a cushioning protective layer 3 and a cushioning post 4, both of which are made of rubber. Figure 3 As shown, the buffer protective layer 3 is a tubular structure. The outer wall of the buffer protective layer 3 is fixedly connected to the inner wall of the outer tube 1 by means of adhesive bonding. Several buffer columns 4 are provided. The buffer columns 4 extend along the axial direction of the buffer protective layer 3, increasing the contact area between the buffer columns and the inner tube, resulting in better support and more dispersed force, and better vibration reduction and buffering effect. The buffer columns 4 are bonded and fixed to the buffer protective layer 3 or integrally formed. The buffer columns 4 are hollow structures. The end of the buffer column 4 away from the buffer protective layer 3 is fixedly connected to the outer wall of the inner tube 2 by adhesive bonding.

[0030] like Figure 2 As shown, the inner tube 2 is located inside the buffer protective layer 3. The inner tube 2 and the buffer protective layer 3 are not coaxial. Specifically, the lower part of the inner tube 2 is fixedly connected to the adjacent buffer protective layer 3 by means of bonding or other methods. The two sides and the upper part of the inner tube 2 are fixedly connected to the ends of the buffer column 4.

[0031] It should be noted that the lower and upper parts of the inner tube 2 described in this embodiment are based on the main viewpoint during actual use (e.g., Figure 2 (The view shown).

[0032] In this embodiment, a hollow buffer column 4 is used instead of a spring structure. The rubber buffer column 4 has high damping characteristics, which helps to absorb and disperse vibration energy. Due to the high damping and nonlinear characteristics of rubber, its natural and resonant frequencies and amplitudes are lower, resulting in better vibration isolation and helping to protect the cable.

[0033] Since vehicles pass over the cable in actual use, buffer pillars 4 are only installed on both sides and above the inner tube 2, and the buffer pillars 4 are made of rubber. The spring structure below the inner tube 2 is eliminated, avoiding the resonance phenomenon that would occur if spring structures were installed on both sides of the inner tube 2. This effectively protects the cable. In addition, the buffer protective layer 3 plays a role in double vibration reduction and isolation protection. When the outer tube 1 is deformed by pressure, the buffer protective layer 3 can absorb energy through deformation and isolate the inner tube 2 from the outer tube 1, playing a primary protection role. At the same time, the buffer pillars 4 further absorb energy through deformation and in conjunction with the buffer protective layer 3, and limit the collision between the upper part of the outer tube 1 and the upper part of the inner tube 2, thus protecting the inner tube 2.

[0034] The hollow structure facilitates the deformation of buffer column 4. To improve the deformation capacity of buffer column 4, such as... Figure 4 As shown, the sidewall of the buffer column 4 has a continuous wavy structure in the vertical direction, containing several folded edges 9, which can deform better under stress, and thus absorb energy and buffer more effectively.

[0035] In this embodiment, the buffer column 4 not only effectively buffers and reduces vibration, but also ensures the distance between the outer tube 1 and the inner tube 2, so that the outside of the inner tube 2 has space for heat exchange, effectively ensuring the heat dissipation of the cable.

[0036] like Figure 3 , Figure 4 As shown, a limiting part 5 is fixedly provided on the bottom inner wall of the buffer protective layer 3. The limiting part 5 is also made of rubber. The limiting part 5 is fixedly connected to the buffer protective layer 3 by integral molding. The upper part of the limiting part 5 is open. Specifically, the inner diameter of the limiting part 5 is the same as the outer diameter of the inner tube 2. The outer wall of the limiting part 5 is tightly attached to and fixedly connected to the inner wall of the buffer protective layer 3. The limiting part 5 extends along the axial direction of the buffer protective layer 3. The lower part of the inner tube 2 is placed inside the limiting part 5. The outer wall of the lower part of the inner tube 2 is tightly attached to the limiting part 5 and fixed by adhesive. The setting of the limiting part 5 increases the contact area between the buffer protective layer 3 and the lower outer wall of the inner tube 2, effectively improving the connection firmness between the inner tube 2 and the buffer protective layer 3.

[0037] Since there are multiple cables during cable laying, in order to avoid the influence between adjacent cables, several isolation pipes 10 are fixedly installed inside the inner pipe 2. The isolation pipes 10 are metal pipes that extend along the axial direction of the inner pipe 2, and each isolation pipe 10 is used to accommodate one cable.

[0038] like Figure 5 As shown, connecting plates 8 are welded and fixed on the outer walls of both ends of the outer tube 1 in a circumferential manner. Bolt holes are provided on the connecting plates 8 to achieve fixed connection of the ends of adjacent outer tubes 1 by means of bolt connection. In order to facilitate the connection of the two outer tubes 1, a plug 6 is fixed on one end face of the outer tube 1. The plug 6 is arranged circumferentially along the end face of the outer tube 1. A slot 7 is provided on the other end face of the outer tube 1. The slot 7 is an annular groove. Through the cooperation between the plug 6 and the slot 7, the quick docking between adjacent two outer tubes 1 can be achieved.

[0039] It is understood that in other embodiments, the buffer protective layer 3 and the buffer pillar 4 may also be made of other elastic materials, such as foam materials. Since the support stability of foam materials is lower than that of rubber materials, rubber materials are preferred.

[0040] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable auxiliary installation device, comprising: The outer tube (1) is characterized in that a buffer protective layer (3) is fixedly provided on the inner wall of the outer tube (1), and an inner tube (2) is provided inside the buffer protective layer (3). The lower part of the inner tube (2) is fixedly connected to the buffer protective layer (3), and the two sides and the upper part of the inner tube (2) are fixedly connected to the buffer protective layer (3) through buffer columns (4). Both the buffer columns (4) and the buffer protective layer (3) are rubber structures.

2. The cable auxiliary installation device according to claim 1, characterized in that, The buffer protective layer (3) is a tubular structure, and the buffer column (4) extends along the axial direction of the buffer protective layer (3). The buffer column (4) is a hollow structure.

3. The cable auxiliary installation device according to claim 2, characterized in that, The sidewalls of the buffer column (4) have a continuous wave-shaped structure in the vertical direction.

4. The cable auxiliary installation device according to claim 1, characterized in that, A limiting part (5) is fixedly provided on the bottom inner wall of the buffer protective layer (3), and the lower part of the inner tube (2) is fixedly provided in the limiting part (5).

5. The cable auxiliary installation device according to claim 4, characterized in that, The upper part of the limiting part (5) is open, and the inner diameter of the limiting part (5) is the same as the outer diameter of the inner tube (2).

6. The cable auxiliary installation device according to claim 1, characterized in that, Several isolation tubes (10) are fixedly installed inside the inner tube (2), and the isolation tubes (10) extend along the axial direction of the inner tube (2).

7. The cable auxiliary installation device according to claim 1, characterized in that, Connecting plates (8) are fixedly provided on the outer walls of both ends of the outer tube (1) along its circumference, and bolt holes are provided on the connecting plates (8).

8. The cable auxiliary installation device according to claim 7, characterized in that, A plug (6) is fixedly provided on one end face of the outer tube (1), and a slot (7) is provided on the other end face of the outer tube (1). The plug (6) and the slot (7) are both arranged around the outer tube (1).

Images