Flame-retardant fireproof cable bridge

Abstract

The invention discloses a flame-retardant fireproof cable bridge, and belongs to the technical field of cable bridge application, the flame-retardant fireproof cable bridge comprises a bridge body, an assembly base plate is placed in the bridge body, and the middle of the assembly base plate is fixedly connected with a fixed bin. The flame-retardant gas is released to prevent flames from burning along the cable, fire spreading is suppressed, troubleshooting time is won for maintainers, loss caused by fire is effectively reduced, meanwhile, small particles fall into the indicator tube and gather at the bottom of the transparent lampshade, the small particles block light emitted by the maintenance indicator lamp, and the maintenance indicator lamp is prevented from being damaged. The light of the maintenance indicating lamp cannot be observed from the bottom of the bridge body, a maintainer can conveniently and rapidly find an accident position according to the light, essential oil volatilized in the essential oil bottle is released into air, and the maintainer can conveniently and rapidly judge the accident position and perceive occurrence of an accident according to smell.

Description

Technical Field

[0001] The invention relates to the technical field of cable bridge application, and more particularly to a flame retardant and fireproof cable bridge. Background Art

[0002] With the rapid development of people's living standards, cable trays are increasingly used in power construction. Cable trays are divided into trough, tray, ladder, grid and other structures, and are composed of brackets, brackets and installation accessories. The cable trays in buildings can be erected independently or attached to various buildings and pipe gallery brackets. They should have the characteristics of simple structure, beautiful shape, flexible configuration and convenient maintenance. All parts must be galvanized.

[0003] The cable bridge is a cable support needed for electricity. The cable is an electrical energy or signal transmission device, usually composed of several or several groups of wires. When the cable passes a certain load current, it will definitely heat up. As the load current increases, the cable surface temperature will become higher. If it is not managed in time, the consequences can be imagined. The heat between the cables will be transferred to each other, causing a short circuit and causing a fire.

[0004] The existing trough-type cable tray is relatively closed. If a fire occurs inside the tray, it is not easy to detect from the outside of the tray. The staff cannot put out the fire in time, causing heavy losses. The circuit breaker caused by the cable fire needs to be repaired in time, but the existing cable tray lacks a location prompt function. The maintenance personnel cannot quickly find the accident location, affecting the efficiency of accident repair. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a flame retardant and fireproof cable bridge. This scheme senses fire accidents through the melting of wax column pins due to heat, and uses a needle to pierce the flame-retardant gas bag to release the flame-retardant gas to prevent the flames from burning along the cable, suppress the spread of fire, and buy time for maintenance personnel to investigate, thereby effectively reducing the losses caused by fire. At the same time, small granular balls fall into the indicator tube and gather at the bottom of the transparent lampshade. The small granular balls block the light emitted by the maintenance indicator light, so that the light of the maintenance indicator light cannot be observed from the bottom of the bridge body, which is convenient for maintenance personnel to quickly find the accident location according to the light. Since the transparent lampshade is full of small granular balls, the transparent lampshade pulls the lifting ring to descend, and the volatile essential oil in the essential oil bottle is released into the air, which is convenient for maintenance personnel to quickly determine the accident location and detect the occurrence of the accident according to the smell.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A flame retardant and fireproof cable bridge, comprising a bridge body, an assembly pad is placed inside the bridge body, a fixing bin is fixedly connected to the middle of the assembly pad, and cable brackets are detachably spliced ​​on both the left and right sides of the fixing bin;

[0010] A flame-retardant gas bag is placed inside the fixed bin, a mounting plate is fixedly connected to both the front and rear sides of the fixed bin, and a heat sensing plate is fixedly connected to the surface of the mounting plate, an air outlet is movably connected to the middle of the bottom end of the mounting plate, and the air outlet corresponds to the flame-retardant gas bag, a puncture needle is movably connected between the side of the heat sensing plate and the air outlet, and the needle tip of the puncture needle is sleeved with the air outlet, a placement groove is fixedly connected to the front of the top end of the heat sensing plate, and a wax column pin is placed inside the placement groove, a U-shaped ring is fixedly connected to the top end of the puncture needle, and the U-shaped ring is sleeved with the outer end of the wax column pin;

[0011] A placement tube is fixedly connected to the side of the heat sensing plate, and small granular balls are placed inside the placement tube. A counterweight is fixedly connected to the middle of the needle, and the side of the counterweight corresponds to the bottom end of the placement tube. Both ends of the assembly pad are fixedly connected to indicator tubes, and the top of the indicator tube vertically corresponds to the bottom end of the placement tube. The bottom end of the indicator tube passes through the bottom end surface of the bridge body, and a maintenance indicator light is fixedly connected to the inside of the indicator tube. The bottom end of the indicator tube is externally sleeved with a lifting ring, and the bottom of the lifting ring is threadedly connected with a transparent lampshade, and the outside of the indicator tube is fixedly sleeved with an essential oil bottle, and the top of the essential oil bottle is in contact with the lifting ring.

[0012] Furthermore, the interior of the essential oil bottle is filled with essential oil, and a volatilization hole is opened on the top of the essential oil bottle. A closing plug is fixedly connected to the top of the lifting ring, and the closing plug corresponds to the volatilization hole. The essential oil filled in the essential oil bottle is volatilized and released from the volatilization hole, which is easy for maintenance personnel to detect. The volatilization hole is tightly closed with the closing plug, which effectively avoids leakage of the essential oil and improves the preservation effect of the essential oil.

[0013] Furthermore, a return spring is provided between the bottom of the inner ring of the essential oil bottle and the top of the outer ring of the lifting ring, and the elastic force of the return spring is less than the total gravity of the granular balls. The granular balls are made of stainless steel, and the elastic force of the return spring is used to push the lifting ring up to achieve the purpose of sealing the essential oil bottle. The granular balls made of stainless steel have a long service life and will descend when the transparent lampshade is full of granular balls, which facilitates the volatilization of the essential oil in the essential oil bottle and releases it into the air.

[0014] Furthermore, a protective cover is fixedly connected to the top of the placement tube, and an insertion window is opened in the middle of the outer side of the protective cover. The protective cover protects the top of the placement tube to prevent the melted wax column pin from falling into the placement tube. After the maintenance is completed, the granular balls are reloaded into the placement tube through the insertion window, so as to restore the maintenance guiding function of the bridge frame.

[0015] Furthermore, a limiting column is fixedly connected to the top side of the heat sensing plate, and the U-shaped ring is sleeved on the limiting column. The limiting column is on the movement line of the needle. When the needle descends to perform a puncture movement, the limiting column limits the movement distance of the U-shaped ring, thereby effectively preventing the needle from excessively piercing the flame-retardant gas bag, and at the same time effectively preventing the needle from contacting the fixed bin and causing the tip to become blunt.

[0016] Furthermore, the wax column pin is made of one of polyethylene wax, EVA wax, and PP wax, and the interior of the wax column pin is coated with tensile fiber wire. The melting point of polyethylene wax is 102-115°C, the melting point of EVA wax is 93-100°C, and the melting point of PP wax is 100-135°C. The wax column pin can effectively sense the increase in temperature inside the bridge frame, and the heat generated by the cable itself will not affect the melting of the wax column pin. The internal coating of tensile fiber wire improves the bending resistance of the wax column pin.

[0017] Furthermore, a heat-insulating sleeve is fixedly attached to the inner wall of the fixed bin, and the flame-retardant gas bag is made of polyethylene plastic. The flame-retardant gas bag made of polyethylene plastic is convenient for puncturing with a puncture needle, and the heat-insulating sleeve improves the heat-insulating effect of the fixed bin, effectively preventing the flame-retardant gas bag from being damaged due to high temperature, and facilitating the recovery of the flame-retardant gas bag.

[0018] Furthermore, both ends of the bottom of the flame-retardant gas bag are fixedly connected with connecting pipes, and the connecting pipes are threadedly connected to the air outlet nozzle. The flame-retardant gas bag is assembled by utilizing the threaded connection between the air outlet nozzle and the connecting pipe, which facilitates the needle to pass through the air outlet nozzle into the connecting pipe and accurately pierce the surface of the flame-retardant gas bag in the connecting pipe, making it easy to control the flame-retardant gas to be sprayed out from the air outlet nozzle, thereby improving the fire-proof and flame-retardant effect of the flame-retardant gas.

[0019] Furthermore, a pressure block is placed on the top of the flame-retardant gas bag, and the pressure block is socketed with the fixed bin. An air outlet groove is provided on the surface of the needle tip of the puncture needle. The pressure block is used to protect the top of the flame-retardant gas bag, and after the flame-retardant gas bag is punctured, the pressure block squeezes the flame-retardant gas bag to facilitate the release of the flame-retardant gas inside the flame-retardant gas bag. The air outlet groove improves the air outlet efficiency of the flame-retardant gas bag and improves the flame retardant effect of the flame-retardant gas.

[0020] Furthermore, a plurality of heat-conducting rods are fixedly connected to both sides of the front end of the heat-sensing plate, and the heat-conducting rods are made of aluminum alloy material. The extended heat-conducting rods can effectively absorb the heat on both sides of the front end of the heat-sensing plate, thereby improving the thermal sensing effect of the wax column pin placed in the placement groove, and facilitating the accurate melting of the wax column pin.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] (1) The fire accident is sensed by the melting of the wax column pin, and the flame-retardant gas bag is pierced with a needle to release the flame-retardant gas to prevent the flame from burning along the cable, suppress the spread of the fire, and buy time for the maintenance personnel to investigate, thereby effectively reducing the losses caused by the fire. At the same time, the granular balls fall into the indicator tube and gather at the bottom of the transparent lampshade. The granular balls block the light emitted by the maintenance indicator light, so that the light of the maintenance indicator light cannot be observed from the bottom of the bridge body, which is convenient for maintenance personnel to quickly find the accident location based on the light. Since the transparent lampshade is filled with granular balls, the transparent lampshade pulls the lifting ring down, and the volatile essential oil in the essential oil bottle is released into the air, which is convenient for maintenance personnel to quickly determine the accident location and detect the occurrence of the accident based on the smell.

[0024] (2) The essential oil bottle is filled with essential oil, and a volatilization hole is opened on the top of the essential oil bottle. A sealing plug is fixedly connected to the top of the lifting ring, and the sealing plug corresponds to the volatilization hole. The essential oil filled in the essential oil bottle is volatilized and released from the volatilization hole, which is easy for maintenance personnel to detect. The volatilization hole is tightly sealed with the sealing plug, which effectively prevents the leakage of the essential oil and improves the preservation effect of the essential oil.

[0025] (3) A return spring is provided between the bottom of the inner ring of the essential oil bottle and the top of the outer ring of the lifting ring, and the elastic force of the return spring is less than the total gravity of the granule balls. The granule balls are made of stainless steel. The elastic force of the return spring is used to push the lifting ring up to achieve the purpose of sealing the essential oil bottle. The granule balls made of stainless steel have a long service life. When the transparent lampshade is filled with granule balls, they fall, which facilitates the volatilization of the essential oil in the essential oil bottle and releases it into the air.

[0026] (4) A protective cover is fixedly connected to the top of the placement tube, and an insertion window is opened in the middle of the outer side of the protective cover. The protective cover protects the top of the placement tube to prevent the melted wax column pin from falling into the placement tube. After the maintenance is completed, the granular balls are reloaded into the placement tube through the insertion window, so as to restore the maintenance guide function of the bridge frame.

[0027] (5) A limiting column is fixedly connected to the top side of the heat sensing plate, and the U-shaped ring is sleeved with the limiting column. The limiting column is located on the movement line of the needle. When the needle descends to perform the puncture movement, the limiting column limits the movement distance of the U-shaped ring, effectively preventing the needle from excessively piercing the flame-retardant gas bag, and effectively preventing the needle from contacting the fixed chamber and causing the tip to become blunt.

[0028] (6) The wax column plug is made of one of polyethylene wax, EVA wax and PP wax, and the interior of the wax column plug is coated with tensile fiber line. The melting point of polyethylene wax is 102-115°C, the melting point of EVA wax is 93-100°C, and the melting point of PP wax is 100-135°C. The wax column plug can effectively sense the increase in temperature inside the bridge frame, and the heat generated by the cable itself will not affect the melting of the wax column plug. The internal coating of tensile fiber line improves the bending resistance of the wax column plug.

[0029] (7) A heat-insulating sleeve is fixedly attached to the inner wall of the fixed bin. The flame-retardant gas bag is made of polyethylene plastic. The flame-retardant gas bag made of polyethylene plastic is easy to pierce with a needle. The heat-insulating sleeve improves the heat-insulating effect of the fixed bin, effectively prevents the flame-retardant gas bag from being damaged by high temperature, and facilitates the recovery of the flame-retardant gas bag.

[0030] (8) Both ends of the bottom of the flame-retardant gas bag are fixedly connected with connecting pipes, and the connecting pipes are threadedly connected to the gas outlet nozzle. The flame-retardant gas bag is assembled by using the threaded connection between the gas outlet nozzle and the connecting pipe, which makes it easy for the needle to pass through the gas outlet nozzle into the connecting pipe and accurately pierce the surface of the flame-retardant gas bag in the connecting pipe, making it easy to control the flame-retardant gas to be ejected from the gas outlet nozzle, thereby improving the fire retardant effect of the flame-retardant gas.

[0031] (9) A pressure block is placed on the top of the flame-retardant gas bag, and the pressure block is connected to the fixed chamber. An air outlet groove is provided on the tip of the needle. The pressure block is used to protect the top of the flame-retardant gas bag. After the flame-retardant gas bag is punctured, the pressure block squeezes the flame-retardant gas bag to facilitate the release of the flame-retardant gas inside the flame-retardant gas bag. The air outlet groove improves the air outlet efficiency of the flame-retardant gas bag and improves the flame retardant effect of the flame-retardant gas.

[0032] (10) A plurality of heat-conducting rods are fixedly connected to both sides of the front end of the heat-sensing plate, and the heat-conducting rods are made of aluminum alloy. The extended heat-conducting rods can effectively absorb the heat on both sides of the front end of the heat-sensing plate, thereby improving the heat-sensing effect of the wax column pin placed in the placement groove, and facilitating the accurate melting of the wax column pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixed bin of the present invention;

[0035] Figure 3 It is a three-dimensional structural schematic diagram of the mounting plate and the thermal sensing plate of the present invention;

[0036] Figure 4 It is a pictographic schematic diagram of the workflow of the present invention;

[0037] Figure 5 It is a structural schematic diagram of A of the present invention;

[0038] Figure 6 It is a schematic diagram of the three-dimensional structure of the flame-retardant gas bag of the present invention;

[0039] Figure 7 It is a schematic diagram of the three-dimensional structure of the needle of the present invention;

[0040] Figure 8 It is a pictographic schematic diagram of the melting change of the wax column latch of the present invention;

[0041] Fig. 9 It is a three-dimensional structural schematic diagram of the wax column latch of the present invention;

[0042] Fig.10 It is a pictographic schematic diagram of observing the maintenance indicator light from the bottom of the bridge body of the present invention;

[0043] Fig.11 It is a schematic diagram of the structure of B of the present invention.

[0044] Description of reference numerals in the figures:

[0045] 1 bridge body, 2 assembly pad, 3 fixed warehouse, 301 insulation sleeve, 4 cable bracket, 5 flame retardant gas bag, 501 connecting pipe, 502 pressure block, 6 mounting plate, 601 air outlet nozzle, 602 thorn needle, 603 placement groove, 604 wax column latch, 605 U-shaped ring, 606 counterweight, 7 heat sensing plate, 701 placement tube, 702 particle ball, 703 indicator tube, 704 maintenance indicator light, 705 lifting ring, 706 transparent lampshade, 707 closing plug, 708 protective cover, 709 insertion window, 8 essential oil bottle, 801 volatilization hole, 802 reset spring, 9 limiting column, 10 tensile fiber line, 11 air outlet groove, 12 thermal conductive rod. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Example:

[0050] See also Figure 1-11 , a flame retardant and fireproof cable tray, please refer to Figure 1 , 2 , including a bridge body 1, an assembling pad 2 is placed inside the bridge body 1, a fixing bin 3 is fixedly connected to the middle of the assembling pad 2, and cable brackets 4 are detachably spliced ​​on both sides of the fixing bin 3, and the cable brackets 4 are used to arrange the cables in an orderly manner;

[0051] See also Figure 2 , 3, 4, 5. A flame-retardant gas bag 5 is placed inside the fixed bin 3. The flame-retardant gas bag 5 is made of polyethylene plastic. The flame-retardant gas bag 5 made of polyethylene plastic is convenient for the puncture operation of the puncture needle 602. An insulating sleeve layer 301 is fixedly attached to the inner wall of the fixed bin 3. The insulating sleeve layer 301 improves the thermal insulation effect of the fixed bin 3, effectively prevents the flame-retardant gas bag 5 from being damaged due to high temperature, and facilitates the recovery of the flame-retardant gas bag 5. The front and rear sides of the fixed bin 3 are fixedly connected with a mounting plate 6, and the surface of the mounting plate 6 is fixedly connected with a heat sensing plate 7. The middle part of the bottom end of the mounting plate 6 is movably connected with an air outlet nozzle 601, and the air outlet nozzle 6 01 corresponds to the flame-retardant gas bag 5. Both ends of the bottom of the flame-retardant gas bag 5 are fixedly connected with connecting tubes 501, and the connecting tubes 501 are threadedly connected with the gas outlet nozzle 601. The flame-retardant gas bag 5 is assembled by using the threaded connection between the gas outlet nozzle 601 and the connecting tube 501. A puncture needle 602 is movably connected between the side of the heat induction plate 7 and the gas outlet nozzle 601, and the needle tip of the puncture needle 602 is sleeved with the gas outlet nozzle 601. The puncture needle 602 passes through the gas outlet nozzle 601 and enters the connecting tube 501, accurately puncturing the skin of the flame-retardant gas bag 5 in the connecting tube 501, so as to facilitate the control of the flame-retardant gas from the gas outlet nozzle 601.

[0052] See also Figure 6 , 7 A pressure block 502 is placed on the top of the flame-retardant gas bag 5, and the pressure block 502 is sleeved with the fixed bin 3. The pressure block 502 is used to protect the top of the flame-retardant gas bag 5. After the flame-retardant gas bag 5 is punctured, the pressure block 502 squeezes the flame-retardant gas bag 5 to facilitate the release of the flame-retardant gas inside the flame-retardant gas bag 5. The needle tip surface of the puncture needle 602 is provided with an air outlet groove 11. The air outlet groove 11 improves the air outlet efficiency of the flame-retardant gas bag 5 and improves the flame retardant effect of the flame-retardant gas.

[0053] See also Figure 4 , 89. Both sides of the front end of the heat sensing plate 7 are fixedly connected with a plurality of heat conducting rods 12, and the heat conducting rods 12 are made of aluminum alloy. The stretched heat conducting rods 12 can effectively absorb the heat on both sides of the front end of the heat sensing plate 7, thereby improving the heat sensing effect of the wax column plug 604 placed in the placement groove 603. The top front part of the heat sensing plate 7 is fixedly connected with the placement groove 603, and the wax column plug 604 is placed inside the placement groove 603. The top of the needle 602 is fixedly connected with a U-shaped ring 605, and the U-shaped ring 605 is sleeved with the outer end of the wax column plug 604. The wax column plug 604 is made of one of polyethylene wax, EVA wax, and PP wax, and the wax column plug 604 is coated with a tensile fiber line 10. The melting point of polyethylene wax is 102-115°C, the melting point of EVA wax is 93-100°C, and the melting point of PP wax is 100-115°C. The melting point of P wax is 100-135°C (this is the prior art, and those skilled in the art can select the required material type according to their needs). The wax column pin 604 can effectively sense the increase in temperature inside the bridge frame, and the heating of the cable itself will not affect the melting of the wax column pin 604. The internally coated tensile fiber line 10 improves the bending resistance of the wax column pin 604, and effectively prevents the wax column pin 604 from being broken by the U-shaped ring 605. The top side of the heat sensing plate 7 is fixedly connected with a limiting column 9, and the U-shaped ring 605 is sleeved with the limiting column 9. The limiting column 9 is on the movement line of the needle 602. When the needle 602 descends to perform a puncture movement, the limiting column 9 effectively prevents the needle 602 from excessively piercing the flame-retardant gas bag 5 by limiting the movement distance of the U-shaped ring 605, and at the same time effectively prevents the needle 602 from contacting the fixed bin 3 to cause the tip to become blunt;

[0054] See also Figure 3 , 4, 10. A placement tube 701 is fixedly connected to the side of the heat sensing plate 7, and a granular ball 702 is placed inside the placement tube 701. The placement tube 701 is arranged obliquely to facilitate the granular ball 702 to leave the placement tube 701. A counterweight block 606 is fixedly connected to the middle of the needle 602, and the side of the counterweight block 606 corresponds to the bottom end of the placement tube 701. Both ends of the assembly pad 2 are fixedly connected to an indicator tube 703, and the top of the indicator tube 703 vertically corresponds to the bottom end of the placement tube 701. When the counterweight block 606 moves downward, the closure of the bottom end of the placement tube 701 is released, and the granular ball 702 in the placement tube 701 falls into the indicator tube 703. The bottom end of the indicator tube 703 passes through the bottom end surface of the bridge frame body 1, and the inside of the indicator tube 703 is fixedly connected to an inspection indicator light 704 (which is a prior art and can be determined by those skilled in the art according to the prior art). The bottom of the indicator tube 703 is provided with a lifting ring 705, and the bottom of the lifting ring 705 is threadedly connected with a transparent lampshade 706. The granular balls 702 gather at the bottom of the transparent lampshade 706, and the granular balls 702 block the light emitted by the maintenance indicator light 704. The maintenance personnel can quickly find the accident location according to the light change of the maintenance indicator light 704. The top of the placement tube 701 is fixedly connected with a protective cover 708, and the middle part of the outer side of the protective cover 708 is provided with an insertion window 709. The protective cover 708 protects the top of the placement tube 701 to prevent the melted wax column pin 604 from falling into the placement tube 701. After the subsequent maintenance is completed, the granular balls 702 removed by the maintenance personnel are reloaded into the placement tube 701 through the insertion window 709, so as to restore the maintenance guide function of the bridge frame.

[0055] See also Figure 4 , 10, 11. The outer fixed sleeve of the indicator tube 703 is provided with an essential oil bottle 8, and the top of the essential oil bottle 8 is in contact with the lifting ring 705. The interior of the essential oil bottle 8 is filled with essential oil, and can also be a colloid that emits odor or other substances that can emit odor. A volatilization hole 801 is opened on the top of the essential oil bottle 8. A sealing plug 707 is fixedly connected to the top of the lifting ring 705, and the sealing plug 707 corresponds to the volatilization hole 801. The essential oil filled in the essential oil bottle 8 evaporates and releases from the volatilization hole 801, which is convenient for maintenance personnel to detect. The sealing plug 707 is used to tightly seal the volatilization hole 801, which effectively avoids the leakage of the essential oil and improves the preservation effect of the essential oil. The granular ball 702 is made of stainless steel material. The stainless steel material The manufactured granular balls 702 have a long service life and are of sufficient quality. A reset spring 802 is sleeved between the bottom of the inner ring of the essential oil bottle 8 and the top of the outer ring of the lifting ring 705, and the elastic force of the reset spring 802 is less than the total gravity of the granular balls 702. The elastic force of the reset spring 802 is used to push the lifting ring 705 up, so as to achieve the purpose of closing the essential oil bottle 8 and prevent the leakage of the essential oil. When the transparent lampshade 706 is full of granular balls 702, the lifting ring 705 is pulled down, so that the essential oil in the essential oil bottle 8 can be volatilized and released into the air, thereby facilitating the maintenance personnel to quickly find the accident location according to the smell and to detect the occurrence of the accident. For example, although there is a fire accident, the cable is not broken.

[0056] Working principle: After the cable tray is assembled, when the cables in the cable tray catch fire, the wax column pin 604 on the heat sensing plate 7 is melted by the high temperature, and the needle 602 is affected by the gravity of the counterweight 606 and falls. The needle 602 pierces the flame retardant gas bag 5, and the needle 602 passes through the air outlet nozzle 601 to accurately pierce the surface of the flame retardant gas bag 5 in the connecting tube 501. The flame retardant gas is ejected from the air outlet nozzle 601, and the flame retardant gas is released to prevent the flame from burning along the cable, suppress the spread of the fire, and buy time for the maintenance personnel to check, thereby effectively reducing the losses caused by the fire. While the counterweight 606 moves downward, the seal on the bottom of the placement tube 701 is released. The granular balls 702 in the placement tube 701 fall into the indicating tube 703, and finally the granular balls 702 gather at the bottom of the transparent lampshade 706, and the granular balls 702 block the light emitted by the maintenance indicator light 704. The maintenance personnel quickly find the accident location according to the light change of the maintenance indicator light 704. The granular balls 702 made of stainless steel gather in the transparent lampshade 706, and the transparent lampshade 706 is driven down by gravity, and then the lifting ring 705 is pulled down, so that the closing plug 707 is separated from the volatilization hole 801, and the essential oil in the essential oil bottle 8 is volatilized and released into the air. The maintenance personnel quickly determine the accident location according to the smell, which effectively improves the cable maintenance efficiency.

[0057] This solution senses a fire accident by melting the wax column pin 604 due to heat, and uses the needle 602 to pierce the flame-retardant gas bag 5, releasing the flame-retardant gas to prevent the flame from burning along the cable, suppressing the spread of the fire, and buying time for maintenance personnel to investigate, thereby effectively reducing the losses caused by the fire. At the same time, the granular balls 702 fall into the indicator tube 703 and gather at the bottom of the transparent lampshade 706. The granular balls 702 block the light emitted by the maintenance indicator light 704, so that the light of the maintenance indicator light 704 cannot be observed from the bottom of the bridge body 1, which is convenient for maintenance personnel to quickly find the accident location based on the light. Since the transparent lampshade 706 is filled with granular balls 702, the transparent lampshade 706 pulls the lifting ring 705 down, and the volatile essential oil in the essential oil bottle 8 is released into the air, which is convenient for maintenance personnel to quickly determine the accident location and detect the occurrence of the accident based on the smell.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and improved concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A flame retardant and fireproof cable tray, comprising a tray body (1), characterized in that: An assembly pad (2) is placed inside the bridge frame body (1), a fixing compartment (3) is fixedly connected to the middle of the assembly pad (2), and cable brackets (4) are detachably assembled on both left and right sides of the fixing compartment (3); A flame-retardant gas bag (5) is placed inside the fixed bin (3), a mounting plate (6) is fixedly connected to both the front and rear sides of the fixed bin (3), and a heat sensing plate (7) is fixedly connected to the surface of the mounting plate (6), a gas outlet nozzle (601) is movably connected to the middle of the bottom end of the mounting plate (6), and the gas outlet nozzle (601) corresponds to the flame-retardant gas bag (5), a piercing needle (602) is movably connected between the side of the heat sensing plate (7) and the gas outlet nozzle (601), and the needle tip of the piercing needle (602) is sleeved with the gas outlet nozzle (601), a placement groove (603) is fixedly connected to the front of the top end of the heat sensing plate (7), and a wax column latch (604) is placed inside the placement groove (603), and a U-shaped ring (605) is fixedly connected to the top end of the piercing needle (602), and the U-shaped ring (605) is sleeved with the outer end of the wax column latch (604); The side of the heat sensing plate (7) is fixedly connected to a placement tube (701), and a granular ball (702) is placed inside the placement tube (701). The middle of the needle (602) is fixedly connected to a counterweight block (606), and the side of the counterweight block (606) corresponds to the bottom end of the placement tube (701). Both ends of the assembly pad (2) are fixedly connected to an indicator tube (703), and the top end of the indicator tube (703) vertically corresponds to the bottom end of the placement tube (701). The bottom end of the indicator tube (703) passes through the bottom end surface of the bridge frame body (1), and a maintenance indicator light (704) is fixedly connected inside the indicator tube (703). A lifting ring (705) is sleeved on the outside of the bottom end of the indicator tube (703), and a transparent lampshade (706) is threadedly connected to the bottom of the lifting ring (705). An essential oil bottle (8) is fixedly sleeved on the outside of the indicator tube (703), and the top of the essential oil bottle (8) is in contact with the lifting ring (705).

2. The flame retardant and fireproof cable tray according to claim 1, characterized in that: The interior of the essential oil bottle (8) is filled with essential oil, and a volatilization hole (801) is opened on the top of the essential oil bottle (8). A sealing plug (707) is fixedly connected to the top of the lifting ring (705), and the sealing plug (707) corresponds to the volatilization hole (801).

3. The flame retardant and fireproof cable tray according to claim 1, characterized in that: A return spring (802) is sleeved between the inner ring bottom of the essential oil bottle (8) and the outer ring top of the lifting ring (705), and the elastic force of the return spring (802) is less than the total gravity of the particle ball (702), and the particle ball (702) is made of stainless steel.

4. The flame retardant and fireproof cable tray according to claim 1, characterized in that: The top end of the placement tube (701) is fixedly connected to a protective cover (708), and a placement window (709) is provided in the middle of the outer side of the protective cover (708).

5. The flame retardant and fireproof cable tray according to claim 1, characterized in that: A limiting column (9) is fixedly connected to the top side of the thermal sensing plate (7), and the U-shaped ring (605) is sleeved with the limiting column (9).

6. The flame retardant and fireproof cable tray according to claim 1, characterized in that: The wax column latch (604) is made of one of polyethylene wax, EVA wax and PP wax, and the interior of the wax column latch (604) is coated with a tensile fiber line (10).

7. The flame retardant and fireproof cable tray according to claim 1, characterized in that: A heat-insulating sleeve layer (301) is fixedly attached to the inner wall of the fixed bin (3), and the flame-retardant gas bag (5) is made of polyethylene plastic.

8. The flame retardant and fireproof cable tray according to claim 1, characterized in that: Both ends of the bottom of the flame-retardant gas bag (5) are fixedly connected with connecting pipes (501), and the connecting pipes (501) are threadedly connected to the gas outlet nozzle (601).

9. The flame retardant and fireproof cable tray according to claim 1, characterized in that: A pressure block (502) is placed on the top of the flame-retardant gas bag (5), and the pressure block (502) is sleeved with the fixed chamber (3). A gas outlet groove (11) is provided on the surface of the needle tip of the puncture needle (602).

10. The flame retardant and fireproof cable tray according to claim 1, characterized in that: A plurality of heat-conducting rods (12) are fixedly connected to both sides of the front end of the heat-sensing plate (7), and the heat-conducting rods (12) are made of aluminum alloy material.

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