Cable bridge with anti-seismic performance
By introducing a multi-layered shock absorption design in the cable tray, incorporating buffer units, dampers, and fire-retardant materials, the problem of insufficient seismic resistance of the cable tray is solved, achieving stable operation and improved safety of the cables.
Patent Information
- Application Number
- CN202520327741.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing cable trays are not earthquake resistant enough, which can cause cables to fall or break during an earthquake, potentially leading to secondary disasters such as power outages, fires, and electric shocks, affecting rescue efforts and daily life.
A cable tray with buffer units and dampers was designed. Combining concave-convex slide rail structure, trapezoidal shock-absorbing blocks and fire-retardant materials, it absorbs and disperses vibrations through a multi-layer shock absorption mechanism, including buffer units, external shock-absorbing supports and dampers, to improve seismic performance.
It effectively reduces physical damage to cables during earthquakes, ensures the stability of the power system, reduces the occurrence of secondary disasters, ensures the power supply of important facilities, and improves the safety of power facilities.
Smart Images
Figure CN223898911U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cable bridge technical field especially is related to a cable bridge with anti shock performance. BACKGROUND
[0002] According to the relevant specification of Chinese electric power industry, the anti shock performance of cable bridge is the important requirement, if the cable bridge does not have enough anti shock ability when the earthquake occurs, can lead to cable drop, fracture, thereby causes power supply interruption, influences rescue work and daily life, cable damage not only can lead to power failure, but also can cause fire, electric shock etc. secondary disasters, increases the anti shock performance and can effectively reduce these risks, the cable bridge is the important component of electric power system, improves its anti shock nature and can protect electric power facilities, avoids causing expensive repair cost and long time production stop.
[0003] Therefore, the cable bridge with high anti shock ability can guarantee the electric power facility safety of various public places, such as the electric power supply of hospital, fire control, rescue center etc., is important to improve emergency response capability, to enhance the anti shock ability of cable bridge, proposes a cable bridge with anti shock performance to solve the above problems. SUMMARY
[0004] The utility model discloses a cable bridge with anti shock performance can solve the problem of cable failure caused by insufficient anti shock ability of cable bridge, effectively reduce the fire, electric shock etc. secondary disasters caused by vibration.
[0005] To realize the above-mentioned purpose, the utility model provides a cable bridge with anti shock performance, including cable bridge, the top of cable bridge is provided with cover plate, the cover plate is connected with the cable bridge through the concave-convex slide rail structure, the bottom of cable bridge is provided with buffer unit, buffer unit is connected with external shock absorbing support, external shock absorbing support is connected with damper, the cable bridge is provided with the wire laying groove in, the both ends of wire laying groove are wedge -shaped with the inside wall of both sides of cable bridge connection.
[0006] Preferably, the external shock absorbing support includes a bottom bar, the both ends of the bottom bar are connected with a H-shaped side support, the top of the H-shaped side support is provided with a damper connecting piece, the bottom of the H-shaped side support is provided with a sliding window, and the sliding window is connected with the buffer unit.
[0007] Preferably, the buffer unit includes a spring, one end of the spring is connected with the bottom bar, the other end of the spring is connected with a buffer plate, a buffer pad is laid on the surface close to the bottom of the cable bridge, and the both ends of the sliding window are connected with the buffer plate.
[0008] Preferably, the cable tray is provided with trapezoidal shock-absorbing blocks at both ends, the trapezoidal shock-absorbing blocks are connected with trapezoidal connecting holes provided on the inner wall of the cable bridge, and the trapezoidal connecting holes and the surfaces of the trapezoidal shock-absorbing blocks are coated with rubber coating or polyurethane coating.
[0009] Preferably, the damper comprises a bottom bearing connector connected with the damper connector, a first damping sleeve is connected above the bottom bearing connector, a spring assembly is connected above the first damping sleeve, a pre-pressing plate is connected above the spring assembly, a second damping sleeve is arranged on the pre-pressing plate, an end cover is arranged above the second damping sleeve, and a top connector is arranged on the end cover.
[0010] Preferably, the material of the cable tray is fireproof and flame-retardant, and the material comprises silicone rubber, polycarbonate and phenolic resin.
[0011] Therefore, the cable bridge with the anti-seismic performance has the following beneficial effects compared with the prior art by adopting the above structure:
[0012] 1. The cable bridge has strong anti-seismic capability, can maintain the stability of the power system, reduce power interruption caused by cable damage, ensure power supply of important facilities and emergency services, and reduce physical damage of the cable caused by vibration, such as stretching, twisting or breaking, thereby protecting the cable from damage.
[0013] 2. The cable bridge can reduce the risk of secondary disasters such as short circuit and fire that may occur after an earthquake, and improve the safety of electrical facilities.
[0014] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is an isometric view of an embodiment of the cable bridge with the anti-seismic performance of the utility model;
[0016] Figure 2 It is a sliding window view of an embodiment of the cable bridge with the anti-seismic performance of the utility model;
[0017] Figure 3 It is a cable tray connection view of an embodiment of the cable bridge with the anti-seismic performance of the utility model;
[0018] Figure 4 It is a damper structure view of an embodiment of the cable bridge with the anti-seismic performance of the utility model;
[0019] REFERENCE SIGNS
[0020] 1, cable bridge; 2, cover plate; 3, buffer unit; 4, external shock absorbing support; 5, damper; 6, wire laying groove; 31, spring; 32, buffer plate; 33, buffer pad; 41, bottom rod; 42, L-shaped side support; 43, damper connecting piece; 44, sliding window; 51, bottom bearing connecting head; 52, first damping sleeve; 53, spring assembly; 54, pre-pressing plate; 55, second damping sleeve; 56, end cover; 57, top connecting head; 61, trapezoidal shock absorbing block; 62, trapezoidal connecting hole. DETAILED DESCRIPTION
[0021] EMBODIMENT
[0022] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0023] As shown in Figures 1-4 The utility model discloses a cable bridge with anti -shaking performance, including cable bridge 1, the top of cable bridge 1 is provided with cover plate 2, and cover plate 2 is connected with cable bridge 1 through concave-convex slide rail structure, and the bottom of cable bridge 1 is provided with buffer unit 3, buffer unit 3 is connected with external shock absorbing support 4, external shock absorbing support 4 is connected with damper 5, and cable bridge 1 is provided with wire laying groove 6, and the both ends of wire laying groove 6 are wedge-shaped with the inside wall of both sides of cable bridge 1, and the wedge-shaped connection can better absorb and disperse vibration, reduce the damage caused by vibration.
[0024] External shock absorbing support 4 includes bottom rod 41, and the both ends of bottom rod 41 are connected with L-shaped side support 42, and the top of L-shaped side support 42 is provided with damper connecting piece 43, and the bottom of L-shaped side support 42 is provided with sliding window 44, and sliding window 44 is connected with buffer unit 3, and external shock absorbing support 4 can effectively absorb and isolate the vibration generated by mechanical equipment operation or external building body, and by reducing vibration, the stability of cable operation is helped to keep, and its transmission efficiency is improved.
[0025] Buffer unit 3 includes spring 31, one end of spring 31 is connected with bottom rod 41, the other end of spring 31 is connected with buffer plate 32, buffer pad 33 is laid on the surface close to the bottom of cable bridge 1 of buffer plate 32, and the both ends of sliding window 44 are connected with buffer plate 32.
[0026] The trapezoidal damping blocks 61 are provided with trapezoidal connecting holes 62 on the inner wall of the cable bridge 1, the surfaces of the trapezoidal connecting holes 62 and the trapezoidal damping blocks 61 are coated with rubber coating or polyurethane coating, the material of the wire slot 6 is fireproof and flame-retardant, which includes silicone rubber, polycarbonate and phenolic resin, in case of fire, the wire slot made of flame-retardant material can prevent the fire from spreading along the electric wire and cable to other areas, limit the scope of the fire, and prevent the cable from overheating for a long time to cause a fire.
[0027] The damper 5 comprises a bottom bearing connector 51 connected with the damper connector 43, a first damping sleeve 52 connected above the bottom bearing connector 51, a spring assembly 53 connected above the first damping sleeve 52, a pre-pressing plate 54 connected above the spring assembly 53, a second damping sleeve 55 arranged on the pre-pressing plate 54, an end cover 56 arranged above the second damping sleeve 55, and a top connector 57 arranged on the end cover 56, which can effectively reduce the vibration of the cable bridge 1 and improve the stability of the cable work, and the damper 5 of a more matched type can be selected according to the application scene of the cable bridge 1.
[0028] In the specific implementation process, when vibration occurs, the damper 5 serves as a first-stage damping device to weaken the vibration of the building body to the maximum extent, then the residual wave vibration is transmitted to the buffer unit 3 through the external damping support 4, the buffer unit 3 is damped again through self-buffering, and smaller vibration is transmitted to the cable bridge through the buffer pad 33, when the cable bridge is disturbed by vibration, it first disperses the vibration stress through the bridge body, then transmits the dispersed vibration stress to the trapezoidal connecting hole 62, the trapezoidal connecting hole 62 transmits smaller force to the trapezoidal damping block 61 based on the design of the damping coating, the trapezoidal damping block 61 further weakens the vibration stress due to its shape and wedge-shaped connection mode, and finally the wire slot 6 is subjected to the vibration stress weakened to the maximum extent, so that the cable bridge 1 achieves excellent anti-seismic capability.
[0029] Therefore, the cable bridge with the anti-seismic performance can solve the problem of cable failure caused by insufficient anti-seismic capability of the cable bridge, and effectively reduce secondary disasters such as fire and electric shock caused by vibration.
[0030] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can still be modified or replaced equivalently, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.
Claims
1. A cable tray with seismic resistance, characterized in that: The cable tray includes a cable tray with a cover plate on top, the cover plate being connected to the cable tray via a concave-convex slide rail structure, a buffer unit at the bottom of the cable tray, an external shock-absorbing bracket connected to the buffer unit, a damper connected to the external shock-absorbing bracket, and a cable laying groove inside the cable tray, the two ends of which are wedge-shaped connected to the inner walls of both sides of the cable tray.
2. A cable tray with seismic resistance according to claim 1, characterized in that: The external shock absorber bracket includes a base bar, with U-shaped side supports connected to both ends of the base bar. A damper connector is provided at the top of the U-shaped side supports, and a sliding window is provided at the bottom of each U-shaped side support. The sliding window is connected to the buffer unit.
3. A cable tray with seismic resistance according to claim 2, characterized in that: The buffer unit includes a spring, one end of which is connected to the bottom bar, and the other end of which is connected to a buffer plate. A buffer pad is laid on the surface of the buffer plate near the bottom of the cable tray, and the sliding window is connected to both ends of the buffer plate.
4. A cable tray with seismic resistance according to claim 3, characterized in that: Trapezoidal damping blocks are provided at both ends of the cable tray, and the trapezoidal damping blocks are connected to trapezoidal connecting holes provided on the inner wall of the cable tray. The trapezoidal connecting holes and the surface of the trapezoidal damping blocks are coated with rubber coating or polyurethane coating.
5. A cable tray with seismic resistance according to claim 4, characterized in that: The damper includes a bottom bearing connector connected to the damper connector, a first damping sleeve connected above the bottom bearing connector, a spring assembly connected above the first damping sleeve, a preload plate connected above the spring assembly, a second damping sleeve provided on the preload plate, an end cap provided above the second damping sleeve, and a top connector provided on the end cap.
6. A cable tray with seismic resistance according to claim 5, characterized in that: The cable tray is made of fire-retardant material, including silicone rubber, polycarbonate and phenolic resin.