Anti-seismic optical cable mounting rack

Abstract

The utility model relates to an anti-seismic optical cable mounting rack, and relates to the field of optical cable mounting equipment, the anti-seismic optical cable mounting rack comprises a base arranged on the ground, a support column fixedly mounted on the base, a cross beam fixedly mounted at the top of the support column, and an anti-seismic mechanism arranged on the cross beam, and the anti-seismic mechanism comprises a first clamping arm and a second clamping arm which are arranged on the cross beam; a buffer wheel is arranged between the first clamping arm and the second clamping arm, the buffer wheel is fixedly connected with a rotating shaft, the rotating shaft is rotationally connected with the first clamping arm, the rotating shaft is rotationally connected with the second clamping arm, and a first compressed spring in a compressed state is arranged between one side of the buffer wheel and the first clamping arm. And a second pressure spring in a compressed state is arranged between the other side of the buffer wheel and the second clamping arm. In order to solve the problem that an optical cable is easy to damage due to strenuous vibration when an earthquake occurs, the utility model provides the anti-seismic optical cable mounting rack, so that the dynamic anti-seismic performance of the optical cable is realized, and the stability and the safety of the optical cable in a severe environment are greatly improved.

Description

Technical Field

[0001] This application relates to the field of optical cable installation equipment, and in particular to an earthquake-resistant optical cable mounting frame. Background Technology

[0002] In the field of outdoor fiber optic cable installation, commonly used cable mounting racks primarily secure the fiber optic cable to the support frame using simple fixing devices. While these racks can meet basic installation requirements, the fiber optic cable is susceptible to vibration during natural disasters such as earthquakes, leading to damage or even breakage. Furthermore, with the rapid development of communication networks, higher demands are placed on the stability and reliability of fiber optic cables. Therefore, developing a mounting rack capable of effectively protecting fiber optic cables in environments such as earthquakes is particularly important.

[0003] The mounting brackets in related technologies include spring-dampened mounting brackets, flexible fixing strap mounting brackets, and fixed mounting brackets. Spring-dampened mounting brackets use spring dampers to absorb vibration energy, thereby reducing the vibration of the optical cable. However, spring dampers are expensive, complex to maintain, and may fail after prolonged use. Flexible fixing strap mounting brackets use elastic materials to wrap and fix the optical cable to the support. While this can alleviate some vibration, the elastic material has a limited lifespan and cannot provide lasting protection. Fixed mounting brackets in related technologies mainly consist of a base set on the ground, ensuring the stability of the entire mounting bracket. Vertical support columns are mounted on the base to provide height support. A horizontal beam is fixed to the top of the support columns, supporting the optical cable. The optical cable is secured to the beam using bolts or other fasteners.

[0004] Regarding the aforementioned technologies, fixed mounting brackets have a simple structure and low cost, making them suitable for widespread application. However, since optical cables are fixed to beams with bolts or other fasteners, they are easily damaged by severe vibrations during earthquakes. Utility Model Content

[0005] To address the problem that optical cables fixed to beams with bolts or other fasteners are easily damaged by severe vibrations during earthquakes, this application provides an earthquake-resistant optical cable mounting bracket that achieves dynamic earthquake resistance for the optical cable, greatly improving its stability and safety in harsh environments.

[0006] This application provides a seismic-resistant optical cable mounting bracket, which adopts the following technical solution:

[0007] An anti-vibration optical cable mounting frame includes a base set on the ground, a support column fixedly installed on the base, a crossbeam fixedly installed on the top of the support column, and an anti-vibration mechanism set on the crossbeam. The anti-vibration mechanism includes a first clamping arm and a second clamping arm set on the crossbeam. A buffer wheel is provided between the first clamping arm and the second clamping arm. The buffer wheel is fixedly connected to a rotating shaft. The rotating shaft is rotatably connected to the first clamping arm and the second clamping arm. A first compression spring in a compressed state is provided between one side of the buffer wheel and the first clamping arm, and a second compression spring in a compressed state is provided between the other side of the buffer wheel and the second clamping arm.

[0008] By adopting the above technical solution, traditional fixed mounting brackets directly fix the optical cable with bolts or other fasteners, resulting in a small contact area between the optical cable and the fixing components. However, by winding the optical cable around the buffer wheel, the contact area between the optical cable and the buffer wheel is large, making the optical cable, which is fixed to the seismic-resistant optical cable mounting bracket for a long time, less susceptible to damage. A first compression spring in a compressed state is installed between one side of the buffer wheel and the first clamping arm, and a second compression spring in a compressed state is installed between the other side of the buffer wheel and the second clamping arm. When an earthquake occurs, the support column shakes, causing the optical cable to shift horizontally. Because the optical cable is wound around the buffer wheel, it further drives the buffer wheel to rotate. The first and second compression springs apply pressure to the rotating buffer wheel, thereby generating friction with the side wall of the buffer wheel to slow its rotation. The kinetic energy of the rotating buffer wheel is ultimately converted into heat energy generated by the friction between the first and second compression springs and the side wall of the buffer wheel. This ensures that the optical cable will not be torn due to the shaking of the support column, ultimately achieving the seismic resistance effect of the seismic-resistant mechanism.

[0009] Optionally, the anti-vibration mechanism further includes an adjustment component for adjusting the clamping distance between the first clamping arm and the second clamping arm, the adjustment component being disposed on the crossbeam.

[0010] By adopting the above technical solution, different optical cable sizes result in different cable masses, and consequently, different kinetic energy from the support frame swaying and causing the buffer wheel to rotate. The adjustment component adjusts the pressure applied by the first and second compression springs to the side wall of the buffer wheel, and adjusts the friction generated between the first and second compression springs and the side wall of the buffer wheel to adapt to the shock resistance of optical cables of different sizes.

[0011] Optionally, the adjusting assembly includes a guide rod fixedly connected to the crossbeam, one end of the first clamping arm being fixedly connected to the end of the guide rod away from the crossbeam, and one end of the second clamping arm having a sliding hole, the second clamping arm being sleeved on the guide rod through the sliding hole; the adjusting assembly further includes an adjusting screw rotatably connected to the end of the second clamping arm away from the guide rod, the adjusting screw being threadedly rotatably connected to the end of the first clamping arm away from the guide rod; the first clamping arm having a clearance hole, and the end of the rotating shaft away from the second clamping arm passing through the clearance hole.

[0012] By adopting the above technical solution, the guide rod and adjusting screw are set so that the force on both ends of the first clamping arm and the second clamping arm is uniform, avoiding deformation of the first clamping arm and the second clamping arm due to uneven force; the clearance hole is set on the first clamping arm so that the distance between the first clamping arm and the second clamping arm can be adjusted without replacing the buffer wheel and the rotating shaft.

[0013] Optionally, a limiting groove for embedding optical cables is provided on the outer periphery of the buffer wheel.

[0014] By adopting the above technical solution, a limiting groove for embedding optical cable is opened on the buffer wheel, which prevents the optical cable from getting tangled and knotted on the buffer wheel when it rotates. This reduces the unnecessary traction force generated by the optical cable due to tangling and knotting, which could cause the optical cable to break. This further ensures the seismic resistance of the optical cable in the event of an earthquake.

[0015] Optionally, a resistance pad is provided in the limiting groove to increase the friction between the optical cable and the limiting groove.

[0016] By adopting the above technical solution, the resistance pad set in the limiting groove can increase the friction between the optical cable and the limiting groove. Compared with the limiting groove without resistance pad, the limiting groove with resistance pad is less likely to slide relative to the optical cable, ensuring that the optical cable drives the buffer wheel to rotate when the support column shakes.

[0017] Optionally, a first protective plate is provided between the buffer wheel and the first compression spring, and a second protective plate is provided between the buffer wheel and the second compression spring.

[0018] By adopting the above technical solution, the first protective plate and the second protective plate respectively contact the two side walls of the buffer wheel. Under the premise that the distance between the first clamping arm and the second clamping arm remains unchanged, the pressure of the first and second compression springs on the buffer wheel remains unchanged. By setting the first protective plate, the contact area between the first compression spring and the side wall of the buffer wheel is increased; by setting the second protective plate, the contact area between the second compression spring and the other side wall of the buffer wheel is increased. This reduces the pressure between the first and second compression springs and the side wall of the buffer wheel. The protective plates reduce wear on the first and second compression springs, extend their service life, and ensure that the first and second compression springs can apply pressure to the side wall of the buffer wheel.

[0019] Optionally, a shock-absorbing pad is provided between the base and the support column.

[0020] By adopting the above technical solution, a shock-absorbing pad is set at the bottom of the support column. When the entire anti-vibration optical cable installation frame is vibrated, the shock-absorbing pad set at the bottom of the support column will undergo elastic deformation, thereby absorbing the vibration energy and converting it into heat energy and releasing it into the air, thereby achieving the effect of shock absorption, reducing the swaying of the support column to a certain extent, and thus reducing the vibration of the optical cable.

[0021] Optionally, a first mounting groove for mounting the first compression spring is provided on the side wall of the first clamping arm, and a second mounting groove for mounting the second compression spring is provided on the side wall of the second clamping arm.

[0022] By adopting the above technical solution, the first mounting groove and the second mounting groove provide installation space for the first compression spring and the second compression spring. The first mounting groove shortens the gap between the first clamping arm and the buffer wheel, and the second mounting groove shortens the gap between the second clamping arm and the buffer wheel, thereby reducing the distance between the first clamping arm and the second clamping arm and saving the installation space of the anti-vibration mechanism.

[0023] Optionally, the buffer wheel is fixedly equipped with a counterweight.

[0024] By adopting the above technical solution, a counterweight is set on the buffer wheel to increase the overall mass of the buffer wheel. Under the premise that the rotation speed of the buffer wheel remains unchanged, the kinetic energy required for the buffer wheel to rotate as a whole is greater. Under the same amplitude of the support column swaying, the kinetic energy generated by the optical cable being pulled and causing the buffer wheel to rotate is the same. The buffer wheel with the counterweight is less likely to rotate.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By incorporating a first clamping arm, a second clamping arm, and a buffer wheel into the seismic-resistant mechanism, the optical cable is wound around the buffer wheel. Compared to optical cables fixed with bolts, the contact area between the optical cable wound around the buffer wheel and the buffer wheel is larger, resulting in less damage to the optical cable over long-term installation, extending its service life, and reducing the risk of breakage during earthquakes due to fixation damage. When the optical cable is pulled by the swaying of the support column, the traction force generated by the pull causes the buffer wheel, which is wound around the optical cable, to rotate.

[0027] 2. A first compression spring in a compressed state is provided between one side of the buffer wheel and the first clamping arm, and a second compression spring in a compressed state is provided between the other side of the buffer wheel and the second clamping arm. The first and second compression springs apply pressure to the side wall of the rotating buffer wheel, thereby slowing down the rotation of the buffer wheel. The kinetic energy of the buffer wheel rotation is eventually converted into heat energy generated by the friction between the first and second compression springs and the side wall of the buffer wheel. The anti-vibration mechanism ensures that the optical cable will not be torn due to the swaying of the support column. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of a seismic-resistant optical cable mounting frame;

[0029] Figure 2 This is a structural schematic diagram of the earthquake-resistant mechanism;

[0030] Figure 3 yes Figure 2 Schematic diagram of the structure of part A;

[0031] Figure 4 This is a schematic diagram of the adjustment component;

[0032] Figure 5 yes Figure 4 A schematic diagram of the structure of part B.

[0033] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support column; 3. Crossbeam; 4. Anti-vibration mechanism; 41. First clamping arm; 411. First mounting groove; 42. Second clamping arm; 421. Second mounting groove; 43. Buffer wheel; 431. Limiting groove; 4311. Resistance pad; 432. Counterweight; 44. Rotating shaft; 45. First compression spring; 46. Second compression spring; 47. Adjustment assembly; 471. Guide rod; 472. Sliding hole; 473. Adjusting screw; 474. Clearance hole; 48. First protective plate; 49. Second protective plate; 5. Shock-absorbing pad. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0035] Reference Figure 1This application discloses an anti-vibration optical cable mounting frame, including a base 1 mounted on the ground, a support column 2 fixed to the base 1 by bolts, and a shock-absorbing pad 5 fixed between the base 1 and the support column 2 by bolts. A crossbeam 3 is fixed to the top of the support column 2 by bolts, and an anti-vibration mechanism 4 is mounted on the crossbeam 3. Multiple anti-vibration mechanisms 4 can be provided, the number of which is determined according to the number of optical cables to be installed on the entire mounting frame. In this embodiment, two anti-vibration mechanisms 4 are provided, respectively located on both sides of the crossbeam 3.

[0036] Reference Figure 2 and Figure 3 The anti-seismic mechanism 4 includes a first clamping arm 41 and a second clamping arm 42 mounted on a crossbeam 3. A buffer wheel 43 for winding the optical cable is positioned between the first clamping arm 41 and the second clamping arm 42. The buffer wheel 43 is fixedly connected to a rotating shaft 44. It should be noted that the buffer wheel 43 and the rotating shaft 44 can be integrally formed or fixedly connected by welding or bolts. This embodiment does not impose specific limitations. The rotating shaft 44 is rotatably connected to the first clamping arm 41 and the second clamping arm 42. The buffer wheel 43 rotates around the axis of the rotating shaft 44. A limiting groove 431 for embedding the optical cable is provided on the buffer wheel 43. The limiting groove 431 is spirally opened on the outer periphery of the buffer wheel 43. The size of the limiting groove 431 matches the size of the optical cable. A resistance pad 4311 is also fixedly mounted on the inner wall of the limiting groove 431 by adhesive. The resistance pad 4311 is used to increase the friction between the optical cable and the limiting groove 431. In this embodiment, the resistance pad 4311 is a rubber resistance pad 4311. It should be noted that the resistance pad 4311 can also be made of other materials with high surface friction coefficients, not limited to rubber. Counterweights 432 are fixedly installed on both sides of the buffer wheel 43 by welding. In this embodiment, four counterweights 432 are provided to increase the overall mass of the buffer wheel 43.

[0037] Compared to directly fixing the optical cable with bolts or other fasteners, fixing the optical cable by wrapping it around the buffer wheel 43 provides a larger contact area between the optical cable and the buffer wheel 43, making the optical cable less susceptible to damage. Simultaneously, the limiting groove 431 on the buffer wheel 43 limits the winding of the optical cable, ensuring that the buffer wheel 43 does not become knotted during rotation, thus preventing unnecessary traction that could lead to cable breakage due to knotting.

[0038] Reference Figure 2 and Figure 4 A first protective plate 48 is provided between the buffer wheel 43 and the first compression spring 45, and a second protective plate 49 is provided between the buffer wheel 43 and the second compression spring 46. The first protective plate 48 and the first compression spring 45 are fixedly connected by welding, and the second protective plate 49 and the second compression spring 46 are fixedly connected by welding.

[0039] The seismic-resistant mechanism 4 also includes an adjustment assembly 47 for adjusting the clamping distance between the first clamping arm 41 and the second clamping arm 42. The adjustment assembly 47 is mounted on the crossbeam 3 and includes a guide rod 471 that is bolted to the crossbeam 3. One end of the first clamping arm 41 is bolted to the end of the guide rod 471 away from the crossbeam 3. One end of the second clamping arm 42 has a sliding hole 472 and is sleeved on the guide rod 471 through the sliding hole 472. The adjustment assembly 47 also includes an adjustment screw 473 that is rotatably connected to the end of the second clamping arm 42 away from the guide rod 471. The adjustment screw 473 is threadedly rotatably connected to the end of the first clamping arm 41 away from the guide rod 471. One end of the rotating shaft 44 is rotatably connected to the first clamping arm 41, and the other end of the rotating shaft 44 is rotatably connected to the second clamping arm 42. A clearance hole 474 is provided at the position where the first clamping arm 41 is rotatably connected to the rotating shaft 44, and the end of the rotating shaft 44 rotatably connected to the first clamping arm 41 passes through the clearance hole 474. The end of the rotating shaft 44 near the first clamping arm 41 passes through the first compression spring 45 and the first protective plate 48 and is fixedly connected to the side wall of the buffer wheel 43. The end of the rotating shaft 44 near the second clamping arm 42 passes through the second compression spring 46 and the second protective plate 49 and is fixedly connected to the other side wall of the buffer wheel 43.

[0040] When the user needs to adjust the distance between the first clamping arm 41 and the second clamping arm 42, the adjusting screw 473 is rotated. The adjusting screw 473 moves up and down. Since the adjusting screw 473 is threadedly connected to the first clamping arm 41 and rotatably connected to the second clamping arm 42, with the first clamping arm 41 fixed to the guide rod 471 and the second clamping arm 42 sleeved on the guide rod 471, the second clamping arm 42 moves up and down with the adjustment screw 473, thereby adjusting the distance between the first clamping arm 41 and the second clamping arm 42. Simultaneously with the change in distance between the first clamping arm 41 and the second clamping arm 42, the portion of the rotating rod passing through the clearance hole 474 moves up and down with the second clamping arm 42, thus achieving the adjustment of the distance between the first clamping arm 41 and the second clamping arm 42.

[0041] Reference Figure 3 and Figure 5The anti-vibration mechanism 4 also includes a first compression spring 45 and a second compression spring 46. A compressed first compression spring 45 is provided between one side of the buffer wheel 43 and the first clamping arm 41, and a compressed second compression spring 46 is provided between the other side of the buffer wheel 43 and the second clamping arm 42. A first mounting groove 411 for mounting the first compression spring 45 is provided on the inner wall of the first clamping arm 41, and a second mounting groove 421 for mounting the second compression spring 46 is provided on the inner wall of the second clamping arm 42. The first compression spring 45 is fixedly connected to the bottom surface of the first mounting groove 411 by welding, and the second compression spring 46 is fixedly connected to the bottom surface of the second mounting groove 421 by welding.

[0042] Installation steps of the seismic-resistant optical cable mounting bracket: S1: Fix the base 1 to the ground or other suitable location, ensuring it is stable and not loose; S2: Vertically install the support column 2 and shock-absorbing pad 5 on the base 1, and fix them with bolts, ensuring they are vertical and stable; S3: Horizontally fix the crossbeam 3 to the top of the support column 2, and fix it with bolts, ensuring it is horizontal and stable; S4: Install the seismic-resistant mechanism 4 on the crossbeam 3, and rotate the adjusting screw 473 to put the seismic-resistant mechanism 4 into standby mode; S5: Wrap the optical cable around the buffer wheel 43, ensuring the optical cable is embedded in the limiting groove 431, and rotate the adjusting screw 473 to make the first clamping arm 41 and the second clamping arm 42 tightly clamp the buffer wheel 43, ensuring the buffer wheel 43 is firmly fixed; S6: Check whether each component is installed in place, ensuring there is no looseness.

[0043] The implementation principle of the anti-seismic optical cable mounting frame in this application embodiment is as follows:

[0044] When an earthquake occurs, the support column 2 shakes, and the crossbeam 3, located on top of the support column 2, shakes along with it. This shaking of the crossbeam 3 causes the optical cable to shift horizontally. Since the optical cable is wrapped around the buffer wheel 43, it drives the buffer wheel 43 to rotate. The first compression spring 45 and the second compression spring 46, located on both sides of the buffer wheel 43, apply pressure to the rotating buffer wheel 43, thereby generating friction with the sidewalls of the buffer wheel 43 to slow its rotation. This ensures that the optical cable will not be torn due to the shaking of the support column 2, ultimately achieving the earthquake-resistant effect of the earthquake-resistant mechanism 4.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A seismic-resistant optical cable mounting frame, comprising a base (1) set on the ground, a support column (2) fixedly installed on the base (1), a crossbeam (3) fixedly installed on the top of the support column (2), and a seismic-resistant mechanism (4) set on the crossbeam (3), characterized in that: The anti-seismic mechanism (4) includes a first clamping arm (41) and a second clamping arm (42) disposed on the crossbeam (3). A buffer wheel (43) is disposed between the first clamping arm (41) and the second clamping arm (42). The buffer wheel (43) is fixedly connected to a rotating shaft (44). The rotating shaft (44) is rotatably connected to the first clamping arm (41) and the second clamping arm (42). A first compression spring (45) in a compressed state is disposed between one side of the buffer wheel (43) and the first clamping arm (41), and a second compression spring (46) in a compressed state is disposed between the other side of the buffer wheel (43) and the second clamping arm (42).

2. The earthquake-resistant optical cable mounting frame according to claim 1, characterized in that: The anti-vibration mechanism (4) further includes an adjustment component (47) for adjusting the clamping distance between the first clamping arm (41) and the second clamping arm (42), the adjustment component (47) being disposed on the crossbeam (3).

3. The earthquake-resistant optical cable mounting frame according to claim 2, characterized in that: The adjusting assembly (47) includes a guide rod (471) fixedly connected to the crossbeam (3), one end of the first clamping arm (41) being fixedly connected to the end of the guide rod (471) away from the crossbeam (3), and one end of the second clamping arm (42) having a sliding hole (472), the second clamping arm (42) being sleeved on the guide rod (471) through the sliding hole (472); the adjusting assembly (47) also includes an adjusting screw (473) rotatably connected to the end of the second clamping arm (42) away from the guide rod (471), the adjusting screw (473) being threadedly rotatably connected to the end of the first clamping arm (41) away from the guide rod (471); the first clamping arm (41) having a clearance hole (474), the end of the rotating shaft (44) away from the second clamping arm (42) passing through the clearance hole (474).

4. The earthquake-resistant optical cable mounting frame according to claim 1, characterized in that: The buffer wheel (43) has a limiting groove (431) on its outer periphery for embedding the optical cable.

5. The earthquake-resistant optical cable mounting frame according to claim 4, characterized in that: The limiting groove (431) is provided with a resistance pad (4311) to increase the friction between the optical cable and the limiting groove (431).

6. The earthquake-resistant optical cable mounting frame according to claim 1, characterized in that: A first protective plate (48) is provided between the buffer wheel (43) and the first compression spring (45), and a second protective plate (49) is provided between the buffer wheel (43) and the second compression spring (46).

7. The earthquake-resistant optical cable mounting frame according to claim 1, characterized in that: A shock-absorbing pad (5) is provided between the base (1) and the support column (2).

8. The earthquake-resistant optical cable mounting frame according to claim 1, characterized in that: The first clamping arm (41) has a first mounting groove (411) for mounting the first compression spring (45) on its side wall, and the second clamping arm (42) has a second mounting groove (421) for mounting the second compression spring (46) on its side wall.

9. The earthquake-resistant optical cable mounting frame according to claim 1, characterized in that: The buffer wheel (43) is fixedly equipped with a counterweight (432).

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