Fabricated cable bridge with branching structure

Abstract

The invention discloses an assembly type cable bridge with a branching structure, and relates to the technical field of bridge processing and manufacturing. The device comprises a groove box, the groove box comprises a branching device, the branching device is fixed in the groove box, the branching device comprises a semi-arc base and a clamping ring, the bottom face of the semi-arc base is fixed to the bottom face in the groove box, and the bottom of the clamping ring is slidably connected into a sliding groove in the top face of the semi-arc base. According to the invention, a cable passes through the clamping ring on the semi-arc base, and the cable is restrained and fixed through the clamping ring; meanwhile, the single clamping ring can move left and right, the positions of the clamping rings can be adjusted according to the actual construction condition, and through constraint and adjustment, the cables can be divided approximately, the cables are prevented from being messy in the laying process, the workload of maintainers can be reduced when the lines go wrong, and the reasons of the problems can be found out as soon as possible.

Description

Technical Field

[0001] This invention relates to the field of cable tray processing and manufacturing technology, specifically to an assembled cable tray with a branching structure. Background Technology

[0002] Cable trays are available in various structures, including trough type, tray type, ladder type, and mesh type, and consist of supports, brackets, and installation accessories. Cable trays within buildings can be installed independently or laid on various building structures and pipe rack supports. They should feature simple structure, aesthetically pleasing appearance, flexible configuration, and convenient maintenance. All parts must be galvanized. Cable trays are a commonly used construction material in cable and wire laying, protecting cables and preventing electric shocks from unauthorized personnel touching the cables.

[0003] Patent publication number CN211239187U discloses a prefabricated cable tray, comprising two parallel connecting side plates and two connecting assemblies perpendicularly disposed between the two connecting side plates. Each connecting assembly includes several connecting horizontal plates detachably connected along the distance between the two connecting side plates. Both ends of each connecting side plate are bent towards the connecting horizontal plates to form bent ends. One of the two bent ends of each connecting side plate is recessed to form a first receiving cavity, and the other is a first connecting end. One end of each connecting assembly is detachably connected to the first receiving cavity of one connecting side plate, and the other end is detachably connected to the first connecting end of the other connecting side plate. One connecting side plate, one connecting assembly, the other connecting side plate, and the other connecting assembly are sequentially connected end to end to form a prefabricated cable tray. In this patent's proposed technical solution, the user can set the connecting horizontal plates according to the number of cables and arbitrarily adjust the volume of the prefabricated cable tray.

[0004] Currently, cable trays on the market still have the following problems: when cables are laid in cable trays, they are usually placed together randomly, and knots and messy circuits often occur between cables. This leads to a significant increase in the workload of maintenance personnel and increases the difficulty of maintenance. Therefore, it is necessary to design a cable tray with a branching structure. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an assembled cable tray with a branching structure, which solves the problem mentioned in the background art that when cables are laid in the tray, they are usually placed together randomly, and knots and messy circuits often occur between cables. This leads to a significant increase in the workload of maintenance personnel and increases the difficulty of maintenance.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated cable tray with a branching structure, comprising a tray box, the tray box including a branching device, an anti-vibration device, and a fireproof device; the branching device is fixed inside the tray box, the branching device including a semi-circular base and a retaining ring, the bottom surface of the semi-circular base being fixed to the bottom surface inside the tray box, the bottom of the retaining ring being slidably connected to a groove on the top surface of the semi-circular base, the cable is passed through the retaining ring located on the semi-circular base, and the cable is constrained and fixed by the retaining ring; at the same time, each retaining ring can move left and right, and the position of the retaining ring can be adjusted according to the actual construction situation. Through constraint and adjustment, the cable can be branched, preventing the cable from becoming messy during the laying process, and reducing the workload of maintenance personnel when line problems occur, so that the cause of the problem can be found as soon as possible.

[0007] Preferably, the anti-vibration device is located at the bottom of the slot box. The anti-vibration device includes a support plate, which is fixed to the bottom of the slot box by a spring. When a slight vibration occurs, the support plate drives the spring to vibrate up and down. The spring's own contraction dampens and buffers the slot box, preventing damage to the cable tray due to vibration.

[0008] Preferably, the anti-vibration device further includes a slot plate and a clamping plate. The slot plate is fixed to the bottom of the tray, and the clamping plate is fixed to the upper surface of the support plate by a column. The slot plate and the clamping plate are interlocked. When the vibration frequency is too high, the support plate drives the clamping plate to move up and down. When the clamping plate moves to the second slot plate position on the slot plate, the clamping plate is fixed and locked. The bottom of the tray has a ventilation hole, which is located directly above the clamping plate. At this time, the ventilation hole at the bottom of the tray is blocked by the clamping plate. This can close the air circulation inside the tray during severe vibration, prevent the cables in the cable tray from short-circuiting and catching fire due to external factors such as earthquakes, and achieve the purpose of fire prevention by isolating the oxygen input.

[0009] Preferably, the fireproof device is fixed inside the cable tray. The fireproof device includes a crossbar and an antistatic plate. The crossbar is fixed to both sides of the inner wall of the cable tray, and the upper surface of the antistatic plate is fixed to the bottom surface of the crossbar. By setting the antistatic plate, the antistatic plate can be connected to the equipotential bonding wire of the cable tray with a metal wire during construction, thus increasing the antistatic effect inside the cable tray. There are several antistatic plates, and the bottom surface of several antistatic plates is in close contact with the bottom surface inside the cable tray and the upper surface of the semi-circular base. The antistatic plates further separate and organize the cables inside the cable tray, preventing the cables from being laid messily and difficult to maintain, and also reducing the probability of fire caused by static electricity from friction between the cables inside the cable tray.

[0010] Preferably, the fireproof device further includes a sandbox and a base plate. The sandbox is fixed to the inner walls at both ends of the cable tray, and the base plate is hinged to the bottom of the sandbox. The sandbox is filled with fire-retardant sand. When a fire occurs in the cable tray, the fire-retardant sand stored in the sandbox will fall into the cable tray, burying the cables at both ends of the cable tray. This can extinguish some of the flames and prevent the fire from spreading and causing excessive damage. The fireproof device also includes a heat collection box, a hot-melt wire, a heat-collecting copper wire, and a heat-conducting plate. The heat collection box is fixed to the inner wall of the sandbox, and the heat-collecting copper wire is fixed inside the heat collection box. The heat-conducting plate is fixed to the inner wall of the heat collection box, and the heat-collecting copper wire is located between the heat-conducting plate and the heat collection box. When a fire occurs in the cable tray, the tray will be heated to a very high temperature in a short time. At this time, the heat collection box will conduct heat to the heat-collecting copper wire, and the heat-collecting copper wire will conduct heat to the heat-conducting plate. The heat-conducting plate will heat the hot-melt wire, and the hot-melt wire will break due to heat. The upper end of the hot-melt wire is fixedly connected to the top plate of the sand box, and the lower end of the hot-melt wire is fixedly connected to the bottom plate. At this time, the bottom plate, which is fixed by the hot-melt wire, will open downward under the action of gravity, so that it can automatically respond to the fire.

[0011] Preferably, the fireproof device also includes a nylon rope. The upper end of the nylon rope is fixed to the lower surface of the base plate, and the lower end of the nylon rope is fixed to the upper surface of the support plate. Because the nylon rope has a certain bending allowance, slight vibrations will not cause the hot-melt wire to break, thus reducing unnecessary maintenance work for maintenance personnel. The nylon rope runs through the bottom of the cable tray. In an earthquake environment, the up-and-down movement of the clamping plate will cause the nylon rope to move. When the vibration is too strong, the nylon rope will straighten and break the hot-melt wire. The fireproof sand in the sandbox will also fall into the inside of the cable tray. In this way, fire can be prevented in advance during an earthquake, preventing the cable from short-circuiting and catching fire due to the earthquake, thereby causing secondary disasters and greater economic losses.

[0012] This invention provides an assembled cable tray with a branching structure. It has the following advantages:

[0013] (1) The present invention uses a splitting device to allow the semi-circular base and the retaining ring to work together to pass the cable through the retaining ring located on the semi-circular base and to constrain and fix the cable. At the same time, the individual retaining ring can move left and right, and the position of the retaining ring can be adjusted according to the actual construction situation. Through constraint and adjustment, the cable can be split to prevent the cable from becoming messy during the laying process. When a problem occurs in the line, the workload of maintenance personnel can be reduced and the cause of the problem can be found as soon as possible.

[0014] (2) The present invention, through the setting of the anti-vibration device, when vibration occurs, makes the support plate and the spring cooperate to dampen the cable tray by the contraction of the spring itself, so as to prevent the cable tray from being damaged due to vibration; and makes the slot plate and the slot plate cooperate. When the vibration frequency is too high, the support plate drives the slot plate to move up and down. When the slot plate moves to the second slot plate position on the slot plate, the slot plate is fixed and locked. At this time, the ventilation hole opened at the bottom of the cable tray is blocked by the slot plate. In this way, the air circulation inside the cable tray can be closed during severe vibration, preventing the cables inside the cable tray from short-circuiting and catching fire due to external factors such as earthquakes. The purpose of fire prevention is achieved by isolating the oxygen input.

[0015] (3) This invention, through the installation of fireproof devices and antistatic boards, allows the antistatic boards to be connected to the equipotential bonding wires of the cable trays using metal wires during construction. This enhances the antistatic effect within the cable trays and further separates and organizes the cables, preventing messy cable laying and making maintenance difficult, while also reducing the probability of fire caused by static electricity from friction within the cables. Furthermore, the installation of sandboxes and base plates ensures that in the event of a fire within the cable trays, the fire-retardant sand stored in the sandboxes will fall into the trays, burying the cables at both ends. This extinguishes some of the flames and prevents the fire from spreading and causing excessive damage. The heat collection box, hot fuse, heat-collecting copper wire, and heat-conducting plate work together to cause the hot fuse to break due to heat. At this time, the base plate, which is fixed by the hot fuse, will open downwards under the action of gravity, thus automatically responding to a fire. At the same time, the nylon rope, support plate, and hot fuse work together. When the vibration is too strong, the nylon rope straightens and breaks the hot fuse. The fireproof sand in the sandbox will also fall into the cable tray. In this way, fire can be prevented in advance during an earthquake, preventing the cables from short-circuiting and catching fire due to the earthquake, thus preventing secondary disasters and greater economic losses. In addition, the nylon rope has a certain bending margin, so that the hot fuse will not be broken by slight vibrations, thus reducing unnecessary maintenance work for maintenance personnel. Attached Figure Description

[0016] Figure 1 This is an external schematic diagram of the entire invention;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of the invention;

[0018] Figure 3 This is a schematic diagram of the branching device of the present invention;

[0019] Figure 4 This is a schematic diagram of the branching device of the present invention;

[0020] Figure 5 This is a schematic diagram of the earthquake-resistant device of the present invention;

[0021] Figure 6 This is a partial schematic diagram of the earthquake-resistant device of the present invention;

[0022] Figure 7 This is a partial schematic diagram of the fire prevention device of the present invention;

[0023] Figure 8 This is a partial schematic diagram of the fire prevention device of the present invention;

[0024] Figure 9 This is a partial schematic diagram of the fire prevention device of the present invention.

[0025] In the diagram: 1. Slot box; 2. Distribution device; 3. Anti-vibration device; 4. Fireproof device; 21. Semi-arc base; 22. Snap ring; 31. Support plate; 32. Snap slot plate; 33. Snap plate; 41. Crossbar; 42. Anti-static plate; 43. Heat collection box; 44. Sand box; 45. Nylon rope; 46. Hot melt wire; 47. Heat collection copper wire; 48. Heat conduction plate; 49. Base plate. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Please see Figure 1-9 This invention provides a technical solution: an assembled cable tray with a branching structure, including a tray box 1. The tray box 1 includes a branching device 2, an anti-vibration device 3, and a fireproof device 4. The branching device 2 is fixed inside the tray box 1 and includes a semi-circular base 21 and a retaining ring 22. The bottom surface of the semi-circular base 21 is fixed to the bottom surface inside the tray box 1. The bottom of the retaining ring 22 is slidably connected to a groove on the top surface of the semi-circular base 21. Cables are passed through the retaining ring 22 located on the semi-circular base 21, and the retaining ring 22 constrains and fixes the cables. At the same time, each retaining ring 22 can move left and right, and the position of the retaining ring 22 can be adjusted according to the actual construction situation. Through constraint and adjustment, the cables can be branched to prevent the cables from becoming messy during the laying process. When a problem occurs in the line, it can also reduce the workload of maintenance personnel and enable them to find the cause of the problem as soon as possible.

[0028] The anti-vibration device 3 is installed at the bottom of the slot box 1. The anti-vibration device 3 includes a support plate 31. The support plate 31 is fixed to the bottom of the slot box 1 by a spring. When a slight vibration occurs, the support plate 31 drives the spring to vibrate up and down. The spring itself contracts to dampen the slot box 1 and prevent the cable tray from being damaged due to vibration.

[0029] The anti-vibration device 3 also includes a slot plate 32 and a clamping plate 33. The slot plate 32 is fixed to the bottom of the slot box 1, and the clamping plate 33 is fixed to the upper surface of the support plate 31 by a column. The slot plate 32 and the clamping plate 33 are interlocked with each other. When the vibration frequency is too high, the support plate 31 drives the clamping plate 33 to move up and down. When the clamping plate 33 moves to the second slot plate position on the slot plate 32, the clamping plate 33 is fixed and locked. The bottom of the slot box 1 is provided with a ventilation hole, which is located directly above the clamping plate 33. At this time, the ventilation hole at the bottom of the slot box 1 is blocked by the clamping plate 33. This can close the air circulation inside the slot box 1 during violent vibration, prevent the cables in the cable tray from short-circuiting and catching fire due to external factors such as earthquakes, and achieve the purpose of fire prevention by isolating the oxygen input.

[0030] Fireproof device 4 is fixed inside the cable tray 1. Fireproof device 4 includes a crossbar 41 and an antistatic plate 42. The crossbar 41 is fixed on both sides of the inner wall of the cable tray 1. The upper surface of the antistatic plate 42 is fixed to the bottom surface of the crossbar 41. By setting the antistatic plate 42, the antistatic plate 42 can be connected to the equipotential bonding wire of the cable tray with a metal wire during construction. This can achieve the purpose of increasing the antistatic effect inside the cable tray. There are several antistatic plates 42. The bottom surface of several antistatic plates 42 is close to the bottom surface of the inside of the cable tray 1 and the upper surface of the semi-circular base 21. The antistatic plate 42 further separates and organizes the cables in the cable tray, which prevents the cables from being laid messily and difficult to maintain. It also reduces the probability of fire caused by friction static electricity in the cables in the cable tray.

[0031] Fireproof device 4 also includes a sandbox 44 and a base plate 49. The sandbox 44 is fixed to the inner walls at both ends of the cable tray 1, and the base plate 49 is hinged to the bottom surface of the sandbox 44. The sandbox 44 is filled with fireproof sand. When a fire occurs in the cable tray, the fireproof sand stored in the sandbox 44 will fall into the cable tray 1, burying the cables at both ends of the cable tray 1. This can extinguish some of the flames and prevent the fire from spreading and causing excessive damage. Fireproof device 4 also includes a heat collection box 43, a hot-melt wire 46, a heat collection copper wire 47, and a heat-conducting plate 48. The heat collection box 43 is fixed to the inner wall of the sandbox 44, the heat collection copper wire 47 is fixed inside the heat collection box 43, and the heat-conducting plate 48... Fixed to the inner wall of the heat collection box 43, the heat collection copper wire 47 is located between the heat conduction plate 48 and the heat collection box 43. When a fire occurs in the cable tray, the tray 1 will be heated to a very high temperature in a short time. At this time, the heat collection box 43 conducts heat to the heat collection copper wire 47, and the heat collection copper wire 47 conducts heat to the heat conduction plate 48. The heat conduction plate 48 heats the hot fuse wire 46, and the hot fuse wire 46 breaks due to heat. The upper end of the hot fuse wire 46 is fixedly connected to the top plate of the sand box 44, and the lower end of the hot fuse wire 46 is fixedly connected to the bottom plate 49. At this time, the bottom plate 49, which is fixed by the hot fuse wire 46, will open downward under the action of gravity, so that it can automatically respond to the fire.

[0032] The fireproof device 4 also includes a nylon rope 45. The upper end of the nylon rope 45 is fixed to the lower surface of the base plate 49, and the lower end of the nylon rope 45 is fixed to the upper surface of the support plate 31. Because the nylon rope 45 has a certain bending allowance, it will not cause the hot fuse 46 to break due to slight vibration, thereby reducing unnecessary maintenance work for maintenance personnel. The nylon rope 45 runs through the bottom of the cable tray 1. In an earthquake environment, the up and down movement of the clamping plate 33 will cause the nylon rope 45 to move. When the vibration is too strong, the nylon rope 45 will straighten and break the hot fuse 46. The fireproof sand in the sand box 44 will also fall into the inside of the cable tray 1. In this way, fire can be prevented in advance when an earthquake occurs, preventing the cable from short-circuiting and catching fire due to the earthquake, thereby causing secondary disasters and greater economic losses.

[0033] In use, the cable is passed through the retaining ring 22 located on the semi-circular base 21, and the cable is constrained and fixed by the retaining ring 22; at the same time, the individual retaining ring 22 can move left and right, and the position of the retaining ring 22 can be adjusted according to the actual construction situation. By constraining and adjusting, the cable can be divided into sections to prevent the cable from becoming messy during the laying process. When a problem occurs in the line, it can also reduce the workload of maintenance personnel and enable them to find the cause of the problem as soon as possible.

[0034] When slight vibration occurs, the support plate 31 drives the spring to vibrate up and down. The spring's own contraction dampens the cable tray 1, preventing damage to the cable tray due to vibration. When the vibration frequency is too high, the support plate 31 drives the clamping plate 33 to move up and down. When the clamping plate 33 moves to the second clamping plate position on the clamping plate 32, the clamping plate 33 is fixed and locked. At this time, the ventilation hole at the bottom of the cable tray 1 is blocked by the clamping plate 33. This can close the air circulation inside the cable tray 1 during severe vibration, preventing short circuits and fires caused by external factors such as earthquakes. It achieves the purpose of fire prevention by isolating the oxygen input.

[0035] By installing the anti-static plate 42 below the crossbar 41, the anti-static plate 42 can be connected to the equipotential bonding wire of the cable tray with a metal wire during construction. This can increase the anti-static effect inside the cable tray. Furthermore, the anti-static plate 42 further separates and organizes the cables inside the cable tray, preventing messy cable laying and making maintenance difficult, and also reducing the probability of fire caused by static electricity from friction within the cables. In the event of a fire inside the cable tray, the tray 1 will be heated to a very high temperature in a short time. At this time, the heat collection box 43 will conduct heat to the heat collection copper wire 47, which will then conduct heat to the heat conduction plate 48. The heat conduction plate 48 will heat the hot-melt wire 46, causing it to break. The base plate 49, which is fixed by the hot-melt wire 46, will then break under the influence of gravity. When the cable tray is opened downwards, the fireproof sand stored in the sandbox 44 will fall into the cable tray 1, burying the cables at both ends of the cable tray 1. This can extinguish some of the flames and prevent the fire from spreading and causing excessive damage. In an earthquake environment, the up-and-down movement of the clamp 33 will cause the nylon rope 45 to move. When the tremor is too strong, the nylon rope 45 will straighten and break the thermocouple wire 46, and the fireproof sand in the sandbox 44 will also fall into the cable tray 1. In this way, fire can be prevented in advance when an earthquake occurs, preventing the cables from short-circuiting and catching fire due to the earthquake, thus preventing secondary disasters and greater economic losses. At the same time, the nylon rope 45 has a certain bending margin, so that the thermocouple wire 46 will not be broken due to slight vibration, which can reduce unnecessary maintenance work for maintenance personnel.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An assembled cable tray with a branching structure, comprising a trough (1), characterized in that: The slot box (1) includes a splitter device (2), an anti-vibration device (3), and a fireproof device (4); the splitter device (2) is fixed inside the slot box (1), and the splitter device (2) includes a semi-arc base (21) and a retaining ring (22). The bottom surface of the semi-arc base (21) is fixed to the bottom surface inside the slot box (1), and the bottom of the retaining ring (22) is slidably connected to the groove on the top surface of the semi-arc base (21).

2. The assembled cable tray with a branching structure according to claim 1, characterized in that: The anti-seismic device (3) is installed at the bottom of the slot box (1). The anti-seismic device (3) includes a support plate (31), which is fixed to the bottom of the slot box (1) by a spring.

3. The assembled cable tray with a branching structure according to claim 1, characterized in that: The anti-seismic device (3) also includes a slot plate (32) and a plate (33). The slot plate (32) is fixed to the bottom of the slot box (1), and the plate (33) is fixed to the upper surface of the support plate (31) by a column. The slot plate (32) and the plate (33) are interlocked with each other. A ventilation hole is provided at the bottom of the slot box (1), and the ventilation hole is located directly above the plate (33).

4. The assembled cable tray with a branching structure according to claim 1, characterized in that: The fireproof device (4) is fixed inside the slot box (1). The fireproof device (4) includes a crossbar (41) and an antistatic plate (42). The crossbar (41) is fixed on both sides of the inner wall of the slot box (1), and the upper surface of the antistatic plate (42) is fixed on the bottom surface of the crossbar (41).

5. The assembled cable tray with a branching structure according to claim 4, characterized in that: The number of antistatic boards (42) is several, and the bottom surface of several antistatic boards (42) is closely attached to the bottom surface inside the slot box (1) and the upper surface of the semi-circular base (21).

6. The assembled cable tray with a branching structure according to claim 4, characterized in that: The fireproof device (4) also includes a sandbox (44) and a base plate (49). The sandbox (44) is fixed to the inner walls of both ends of the slot box (1), and the base plate (49) is hinged to the bottom surface of the sandbox (44). The sandbox (44) is filled with fireproof sand.

7. A prefabricated cable tray with a branching structure according to claim 6, characterized in that: The fireproof device (4) also includes a heat collection box (43), a hot melt wire (46), a heat collection copper wire (47), and a heat conduction plate (48). The heat collection box (43) is fixed to the inner wall of the sand box (44), the heat collection copper wire (47) is fixed inside the heat collection box (43), the heat conduction plate (48) is fixed to the inner wall of the heat collection box (43), the heat collection copper wire (47) is located between the heat conduction plate (48) and the heat collection box (43), the upper end of the hot melt wire (46) is fixedly connected to the top plate of the sand box (44), and the lower end of the hot melt wire (46) is fixedly connected to the bottom plate (49).

8. The assembled cable tray with a branching structure according to claim 6, characterized in that: The fireproof device (4) also includes a nylon rope (45), the upper end of which is fixed to the lower surface of the base plate (49), the lower end of which is fixed to the upper surface of the support plate (31), and the nylon rope (45) passes through the bottom of the slot box (1).

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