Fire protection device for a cable tunnel

Abstract

The application discloses a fireproof device for a cable tunnel, and solves the technical problems that in the existing cable tunnel, a horizontal fireproof partition plate between cable layers hinders the spraying of fire extinguishing medium to the burning cable, and the fixed position of the fire extinguishing device cannot effectively control the fire in the cable tunnel. The application comprises two support and protection mechanisms respectively arranged on the inner side walls of the cable tunnel and used for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably arranged in the cable tunnel. The application inclines the partition plate between the cable layers, avoids the hindering of the partition plate to the spraying of the fire extinguishing medium to the burning cable, and enhances the fire extinguishing effect. The fire extinguishing mechanism of the application is movably arranged in the cable tunnel, the position of the spraying box in the cable tunnel can be adjusted according to the burning position in the cable tunnel, the fire extinguishing medium sprayed by the spray head on the spraying box is used for extinguishing the corresponding burning position, and the fire in the cable tunnel can be effectively controlled.

Description

Technical Field

[0001] This invention belongs to the field of cable tunnel safety technology, and specifically relates to a fireproof device for cable tunnels. Background Technology

[0002] Constructing cable tunnels helps resolve the conflict between urban density and land use for public facilities, while also mitigating the impact of sudden severe weather and extreme climates, and reducing the risk of secondary disasters induced by natural disasters in the power grid. However, due to the large number of power cables concentrated in cable tunnels, there is a high risk of fire inside. Factors such as phase-to-phase and phase-to-ground short circuits, line overloads, and poor contact can all cause cable fires. To control the fire within a small localized area and prevent its spread, current measures include installing horizontal fireproof partitions between cable layers and fire extinguishing devices within the tunnel. The existing technical problems are: firstly, existing fire extinguishing devices are mainly installed at the tunnel ceiling, and the horizontal fireproof partitions between cable layers can obstruct the spray of extinguishing agents onto the burning cables, reducing the extinguishing effect; secondly, the ignition point within a cable tunnel is unpredictable, and fire extinguishing devices fixed at the tunnel ceiling can only extinguish fires in the area below them, failing to effectively control the fire within the cable tunnel. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a fireproof device for cable tunnels, so as to at least solve some of the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A fire protection device for cable tunnels includes two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movable in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movable on the sliding mechanism for spraying fire extinguishing medium.

[0006] Furthermore, the support and protection mechanism includes several support inclined plates arranged on the inner wall of the cable tunnel, and a partition plate arranged between two adjacent support inclined plates in the same row and obliquely embedded in the inner wall of the cable tunnel.

[0007] Furthermore, several parallel-distributed mounting slots are provided on the inner wall of the cable tunnel, and several partition plates are embedded in the mounting slots.

[0008] Furthermore, the sliding mechanism includes a first sliding rod fixedly disposed at the top of the cable tunnel, a second sliding rod fixedly disposed at the bottom of the cable tunnel, a guide rod slidably fitted between the first and second sliding rods, and a first driving mechanism disposed at the top of the cable tunnel and connected to the guide rod to drive the guide rod to slide on the first and second sliding rods; the spraying mechanism is disposed on the guide rod.

[0009] Furthermore, a first slider is provided at the top of the guide rod, and a second slider is provided at the bottom of the guide rod. The first slider is slidably mounted on the first slide rod, and the second slider is slidably mounted on the second slide rod; the first drive mechanism is connected to the first slider.

[0010] Furthermore, the first drive mechanism includes a first motor located at one end of the top of the cable tunnel, a first drive sprocket located on the drive shaft of the first motor, a first driven sprocket located at the other end of the top of the cable tunnel, and a first chain sleeved between the first drive sprocket and the first driven sprocket and connected to the first slider.

[0011] Furthermore, the spraying mechanism includes a spray box that is movably mounted on the guide rod, and a second drive mechanism that is mounted on the first slider and the guide rod and connected to the spray box to drive the spray box to move on the guide rod.

[0012] Furthermore, there are two second drive mechanisms. Each second drive mechanism includes a second motor located at the bottom of the guide rod, a second drive sprocket located on the drive shaft of the second motor, a second driven sprocket rotatably located at the bottom of the first slider, and a second chain sleeved between the second drive sprocket and the second driven sprocket and connected to the spray box.

[0013] Furthermore, the spray box has a container cavity for holding the extinguishing medium, and the spray box is equipped with a conveying mechanism that extends from the container cavity to transport the extinguishing medium. The spray box is also equipped with a nozzle that extends from the conveying mechanism and whose output end is located outside the spray box.

[0014] Furthermore, there are two conveying mechanisms, each including a first conveying main pipe connected to the loading cavity, a conveying pump connected to the first conveying main pipe, a second conveying main pipe connected to the conveying pump, a first conveying branch pipe connected to the second conveying main pipe, and several second conveying branch pipes connected to the first conveying branch pipe respectively; several nozzles are connected to the second conveying branch pipes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention features a simple structure, a scientifically sound design, and convenient use. The partitions between cable layers are angled, allowing the extinguishing medium to flow smoothly through the gaps between adjacent partitions and extinguish the fire as it is sprayed downwards from the top of the cable tunnel. This angled arrangement prevents the extinguishing medium from obstructing the spray and enhances the extinguishing effect. Unlike existing fire extinguishing devices fixed at the top of the cable tunnel, this invention's extinguishing mechanism is movable within the tunnel. The position of the spray box can be adjusted according to the location of the fire, allowing the extinguishing medium from the nozzles to effectively control the fire within the cable tunnel.

[0017] When adjusting the position of the spray box, the guide rod can be driven to slide through the first drive mechanism, and then the spray box can be moved synchronously through the guide rod, so that the spray box can be moved in the cable tunnel along the length of the cable tunnel; the spray box can be moved up and down on the guide rod through the second drive mechanism, so that the spray box can be moved in the cable tunnel along the height of the cable tunnel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 A cross-sectional view showing the supporting inclined plates and mounting slots distributed on the inner wall of the cable tunnel.

[0020] Figure 3 This is a schematic diagram showing the distribution of the mounting slots on the inner wall of a cable tunnel when facing the inner wall.

[0021] Figure 4 This is a schematic diagram showing the distribution of partitions and supporting inclined plates on the inner wall of a cable tunnel when facing the inner wall.

[0022] Figure 5 This is a schematic diagram showing the appearance of the spray box moving along the length of the cable tunnel, driven by a guide rod.

[0023] Figure 6 This is a cross-sectional diagram showing the guide rod driving the spray box to move along the length of the cable tunnel.

[0024] Figure 7 This is a partially enlarged schematic diagram showing the guide rod driving the spray box to move along the length of the cable tunnel.

[0025] Figure 8 for Figure 1 Enlarged view of area A in the image.

[0026] Figure 9 This is a schematic diagram showing the second delivery branch pipe connected to the first delivery branch pipe.

[0027] Figure 10 This is a cross-sectional view of the first slider.

[0028] Figure 11 This is a cross-sectional view of the second slide bar.

[0029] Figure 12 A schematic diagram showing the through-hole on the spray box.

[0030] Figure 13 This is a schematic diagram showing the through holes in the spray box.

[0031] Figure 14 This is a schematic diagram of the cross-section of the spray box.

[0032] The names corresponding to the reference numerals in the attached figures are as follows:

[0033] 1-Cable tunnel, 2-Cable, 3-Supporting inclined plate, 4-Partition plate, 5-Embedding groove, 6-First sliding rod, 7-Second sliding rod, 8-First slider, 9-Second slider, 10-Guide rod, 11-First motor, 12-First driving sprocket, 13-First driven sprocket, 14-First chain, 15-Spray box, 16-Second motor, 17-Second driving sprocket, 18-Second driven sprocket, 19-Second chain, 20-Containing cavity, 21-First conveying main pipe, 22-Conveying pump, 23-Second conveying main pipe, 24-First conveying branch pipe, 25-Second conveying branch pipe, 26-Sprayer head, 27-First chute, 28-Second chute, 29-Through hole, 30-Leaving through hole, 31-First mounting cavity, 32-Second mounting cavity, 33-Mounting plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Example 1

[0038] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0039] This invention features a simple structure, a scientifically sound design, and convenient use. The partitions between cable layers are angled, allowing the extinguishing medium to flow smoothly through the gaps between adjacent partitions and extinguish the fire as it is sprayed downwards from the top of the cable tunnel. This angled arrangement prevents the partitions from obstructing the spray and enhances the extinguishing effect. Unlike existing fire extinguishing devices fixed at the top of the cable tunnel, this invention's extinguishing mechanism is movable within the tunnel. The position of the spray box can be adjusted according to the location of the fire, allowing the extinguishing medium from the nozzles to effectively control the fire within the cable tunnel.

[0040] Figure 5 , Figure 6 and Figure 7 The arrow in the diagram indicates the direction in which the guide rod slides back and forth along the length of the cable tunnel inside the tunnel.

[0041] Example 2

[0042] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0043] The support and protection mechanism includes several inclined support plates 3 arranged on the inner wall of the cable tunnel, and a partition plate 4 disposed between two adjacent inclined support plates 3 in the same row and obliquely embedded in the inner wall of the cable tunnel. In this embodiment 2, the partition plate 4 is embedded in the inner wall of the cable tunnel and rests between two adjacent inclined support plates 3, so that the installation and removal of the partition plate 4 are more convenient.

[0044] Example 3

[0045] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0046] The support and protection mechanism includes several support inclined plates 3 arranged on the inner wall of the cable tunnel, and a partition plate 4 located between two adjacent support inclined plates 3 in the same row and obliquely embedded in the inner wall of the cable tunnel.

[0047] Several parallel-distributed mounting slots 5 are provided on the inner wall of the cable tunnel, and several partition plates 4 are embedded in the mounting slots 5.

[0048] In this embodiment 3, the mounting groove 5 is inclined upward along the direction from the bottom to the top of the cable tunnel 1, and the partition 4 is inclinedly mounted in the mounting groove 5; two adjacent partitions 4 in the mounting groove 5 are attached to each other; cables 2 are placed on the partitions 4 mounted in the mounting groove 5.

[0049] Example 4

[0050] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0051] The sliding mechanism includes a first sliding rod 6 fixedly disposed at the top of the cable tunnel, a second sliding rod 7 fixedly disposed at the bottom of the cable tunnel, a guide rod 10 slidably fitted between the first sliding rod 6 and the second sliding rod 7, and a first driving mechanism disposed at the top of the cable tunnel and connected to the guide rod 10 to drive the guide rod 10 to slide on the first sliding rod 6 and the second sliding rod 7; the spraying mechanism is disposed on the guide rod 10.

[0052] In this embodiment 4, the first slide rod 6 is located on the inner top of the cable tunnel 1 along the length of the cable tunnel 1, and the second slide rod 7 is located on the inner bottom of the cable tunnel 1 along the length of the cable tunnel 1. During the sliding process of the guide rod 10 on the first slide rod 6 and the second slide rod 7, the guide rod shifts within the cable tunnel 1 along the length of the cable tunnel 1.

[0053] Example 5

[0054] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0055] The sliding mechanism includes a first sliding rod 6 fixedly disposed at the top of the cable tunnel, a second sliding rod 7 fixedly disposed at the bottom of the cable tunnel, a guide rod 10 slidably fitted between the first sliding rod 6 and the second sliding rod 7, and a first driving mechanism disposed at the top of the cable tunnel and connected to the guide rod 10 to drive the guide rod 10 to slide on the first sliding rod 6 and the second sliding rod 7; the spraying mechanism is disposed on the guide rod 10.

[0056] The guide rod 10 has a first slider 8 at the top and a second slider 9 at the bottom. The first slider 8 is slidably mounted on the first slide rod 6 and the second slider 9 is slidably mounted on the second slide rod 7. The first drive mechanism is connected to the first slider 8.

[0057] In this embodiment 5, there are two first slide rods 6, which are distributed parallel to each other. The first slider 8 has two first grooves 27 that respectively match the two first slide rods 6. The first slide rods 6 are slidably fitted into the first grooves 27. The second slide rod 7 has a second groove 28 along its length, and the second slider 9 is slidably fitted into the second groove 28. When it is necessary to adjust the position of the guide rod 10 in the cable tunnel 1, the first drive mechanism drives the first slider 8 to slide back and forth on the first slide rods 6. The first slider 8 drives the guide rod 10 to move synchronously, thus adjusting the position of the guide rod 10 in the cable tunnel 1. The second slide rod 7 is used to support and limit the guide rod 10, ensuring the stability of the guide rod 10 during movement.

[0058] Example 6

[0059] like Figure 1-14As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0060] The sliding mechanism includes a first sliding rod 6 fixedly disposed at the top of the cable tunnel, a second sliding rod 7 fixedly disposed at the bottom of the cable tunnel, a guide rod 10 slidably fitted between the first sliding rod 6 and the second sliding rod 7, and a first driving mechanism disposed at the top of the cable tunnel and connected to the guide rod 10 to drive the guide rod 10 to slide on the first sliding rod 6 and the second sliding rod 7; the spraying mechanism is disposed on the guide rod 10.

[0061] The guide rod 10 has a first slider 8 at the top and a second slider 9 at the bottom. The first slider 8 is slidably mounted on the first slide rod 6 and the second slider 9 is slidably mounted on the second slide rod 7. The first drive mechanism is connected to the first slider 8.

[0062] The first drive mechanism includes a first motor 11 located at one end of the top of the cable tunnel, a first drive sprocket 12 located on the drive shaft of the first motor 11, a first driven sprocket 13 rotatably located at the other end of the top of the cable tunnel, and a first chain 14 sleeved between the first drive sprocket 12 and the first driven sprocket 13 and connected to the first slider 8.

[0063] In this embodiment 6, the first motor 11 is a forward and reverse servo motor. The principle of the first drive mechanism driving the first slider 8 to slide on the first slide bar 6 is as follows: the first motor 11 starts, the first motor 11 drive shaft rotates, the first motor 11 drive shaft drives the first active sprocket 12 to rotate synchronously, the first active sprocket 12 drives the first chain 14 to reciprocate between the first active sprocket 12 and the first driven sprocket 13, and the first chain 14 pulls the first slider 8 to slide on the first slide bar 6.

[0064] Example 7

[0065] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0066] The sliding mechanism includes a first sliding rod 6 fixedly disposed at the top of the cable tunnel, a second sliding rod 7 fixedly disposed at the bottom of the cable tunnel, a guide rod 10 slidably fitted between the first sliding rod 6 and the second sliding rod 7, and a first driving mechanism disposed at the top of the cable tunnel and connected to the guide rod 10 to drive the guide rod 10 to slide on the first sliding rod 6 and the second sliding rod 7; the spraying mechanism is disposed on the guide rod 10.

[0067] The guide rod 10 has a first slider 8 at the top and a second slider 9 at the bottom. The first slider 8 is slidably mounted on the first slide rod 6 and the second slider 9 is slidably mounted on the second slide rod 7. The first drive mechanism is connected to the first slider 8.

[0068] The spraying mechanism includes a spray box 15 that is movably mounted on the guide rod 10, and a second drive mechanism that is mounted on the first slider 8 and the guide rod 10 and connected to the spray box 15 to drive the spray box 15 to move on the guide rod 10.

[0069] In this embodiment 7, the spray box 15 contains fire extinguishing medium. When cable 2 catches fire in the cable tunnel, the spray box 15 sprays the fire extinguishing medium onto the burning cable to extinguish the fire. The position of the spray box 15 can be adjusted according to the location of the fire in the cable tunnel, so that the fire extinguishing medium sprayed from the spray box 15 can be used to extinguish the fire. When adjusting the position of the spray box, the guide rod can be driven to slide back and forth by the first drive mechanism, thereby driving the spray box to move synchronously, so that the spray box moves along the length of the cable tunnel; the spray box can be moved up and down on the guide rod by the second drive mechanism, thereby moving the spray box along the height of the cable tunnel.

[0070] Example 8

[0071] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0072] The sliding mechanism includes a first sliding rod 6 fixedly disposed at the top of the cable tunnel, a second sliding rod 7 fixedly disposed at the bottom of the cable tunnel, a guide rod 10 slidably fitted between the first sliding rod 6 and the second sliding rod 7, and a first driving mechanism disposed at the top of the cable tunnel and connected to the guide rod 10 to drive the guide rod 10 to slide on the first sliding rod 6 and the second sliding rod 7; the spraying mechanism is disposed on the guide rod 10.

[0073] The guide rod 10 has a first slider 8 at the top and a second slider 9 at the bottom. The first slider 8 is slidably mounted on the first slide rod 6 and the second slider 9 is slidably mounted on the second slide rod 7. The first drive mechanism is connected to the first slider 8.

[0074] The spraying mechanism includes a spray box 15 that is movably mounted on the guide rod 10, and a second drive mechanism that is mounted on the first slider 8 and the guide rod 10 and connected to the spray box 15 to drive the spray box 15 to move on the guide rod 10.

[0075] There are two second drive mechanisms. The second drive mechanism includes a second motor 16 located at the bottom of the guide rod 10, a second drive sprocket 17 located on the drive shaft of the second motor 16, a second driven sprocket 18 rotatably located at the bottom of the first slider 8, and a second chain 19 sleeved between the second drive sprocket 17 and the second driven sprocket 18 and connected to the spray box 15.

[0076] In this embodiment 8, a mounting plate 33 is provided on the bottom end of the guide rod 10, and the second motor 16 is mounted on the mounting plate 33. The second motor 16 is a forward and reverse servo motor. The principle of the second drive mechanism driving the spray box to move up and down on the guide rod is as follows: when the second motor 16 starts, the drive shaft of the second motor 16 rotates, and the drive shaft of the second motor 16 drives the second drive sprocket 17 to rotate synchronously. The second drive sprocket 17 drives the second chain 19 to reciprocate between the second drive sprocket 17 and the second driven sprocket 18. The second chain 19 pulls the spray box to slide up and down on the guide rod.

[0077] In this embodiment 8, the spray box 15 has a through hole 29 adapted to the guide rod 10, and the guide rod 10 passes through the through hole 29. The spray box 15 also has a clearance through hole 30 for making way for the second chain 19. After passing through the clearance through hole 30, the second chain 19 is fitted between the second driving sprocket 17 and the second driven sprocket 18.

[0078] Example 9

[0079] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0080] The sliding mechanism includes a first sliding rod 6 fixedly disposed at the top of the cable tunnel, a second sliding rod 7 fixedly disposed at the bottom of the cable tunnel, a guide rod 10 slidably fitted between the first sliding rod 6 and the second sliding rod 7, and a first driving mechanism disposed at the top of the cable tunnel and connected to the guide rod 10 to drive the guide rod 10 to slide on the first sliding rod 6 and the second sliding rod 7; the spraying mechanism is disposed on the guide rod 10.

[0081] The guide rod 10 has a first slider 8 at the top and a second slider 9 at the bottom. The first slider 8 is slidably mounted on the first slide rod 6 and the second slider 9 is slidably mounted on the second slide rod 7. The first drive mechanism is connected to the first slider 8.

[0082] The spraying mechanism includes a spray box 15 that is movably mounted on the guide rod 10, and a second drive mechanism that is mounted on the first slider 8 and the guide rod 10 and connected to the spray box 15 to drive the spray box 15 to move on the guide rod 10.

[0083] The spray box 15 has a container chamber 20 for containing fire extinguishing medium. The spray box 15 is provided with a conveying mechanism that extends from the container chamber 20 to convey the fire extinguishing medium. The spray box 15 is also provided with a nozzle 26 that extends from the conveying mechanism and has its output end located outside the spray box 15.

[0084] In this embodiment 9, the conveying mechanism delivers the fire extinguishing medium contained in the container 20 to the nozzle 26, and the nozzle 26 sprays the fire extinguishing medium onto the burning cable, thereby extinguishing the fire on the burning cable.

[0085] Example 10

[0086] like Figure 1-14 As shown, the present invention provides a fire protection device for cable tunnels, including two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movably installed in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movably installed on the sliding mechanism for spraying fire extinguishing medium.

[0087] The sliding mechanism includes a first sliding rod 6 fixedly disposed at the top of the cable tunnel, a second sliding rod 7 fixedly disposed at the bottom of the cable tunnel, a guide rod 10 slidably fitted between the first sliding rod 6 and the second sliding rod 7, and a first driving mechanism disposed at the top of the cable tunnel and connected to the guide rod 10 to drive the guide rod 10 to slide on the first sliding rod 6 and the second sliding rod 7; the spraying mechanism is disposed on the guide rod 10.

[0088] The guide rod 10 has a first slider 8 at the top and a second slider 9 at the bottom. The first slider 8 is slidably mounted on the first slide rod 6 and the second slider 9 is slidably mounted on the second slide rod 7. The first drive mechanism is connected to the first slider 8.

[0089] The spraying mechanism includes a spray box 15 that is movably mounted on the guide rod 10, and a second drive mechanism that is mounted on the first slider 8 and the guide rod 10 and connected to the spray box 15 to drive the spray box 15 to move on the guide rod 10.

[0090] The spray box 15 has a container chamber 20 for containing fire extinguishing medium. The spray box 15 is provided with a conveying mechanism that extends from the container chamber 20 to convey the fire extinguishing medium. The spray box 15 is also provided with a nozzle 26 that extends from the conveying mechanism and has its output end located outside the spray box 15.

[0091] There are two conveying mechanisms, including a first conveying main pipe 21 connected to the loading cavity 20, a conveying pump 22 connected to the first conveying main pipe 21, a second conveying main pipe 23 connected to the conveying pump 22, a first conveying branch pipe 24 connected to the second conveying main pipe 23, and several second conveying branch pipes 25 connected to the first conveying branch pipe 24 respectively; several nozzles 26 are connected to the second conveying branch pipes 25.

[0092] In this embodiment 10, the delivery pump 22 pumps the extinguishing medium contained in the container 20 to the nozzle 26, which sprays the extinguishing medium onto the burning cable to extinguish the fire. The nozzles 26 are distributed on the side of the spray box 15 facing the cable 2. The spray box 15 has a first mounting cavity 31 and a second mounting cavity 32. The delivery pump 22 is installed in the first mounting cavity 31, and the second delivery main pipe 23, the first delivery branch pipe 24, and the second delivery branch pipe 25 are located in the second mounting cavity 32. The first delivery main pipe 21 is sealed and connected out of the container 20.

[0093] The first motor 11, the second motor 16, and the delivery pump 22 used in this invention are all existing known electrical devices and can be purchased and used directly on the market. The structure, circuit, and control principle of the first motor 11, the second motor 16, and the delivery pump 22 are all existing known technologies. Therefore, the structure, circuit, and control principle of the first motor 11, the second motor 16, and the delivery pump 22 will not be described in detail here.

[0094] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention used to illustrate the technical solutions of the present invention, and are not intended to limit the invention, nor are they intended to limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. That is to say, any changes or refinements made to the main design concept and spirit of the present invention that are not of substantial significance, but whose technical problems are still consistent with the present invention, should be included within the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention to other related technical fields are similarly included within the patent protection scope of the present invention.

Claims

1. A fireproof device for cable tunnels, characterized in that, It includes two support and protection mechanisms respectively installed on the two inner side walls of the cable tunnel for supporting and protecting the cables installed in the cable tunnel, and a fire extinguishing mechanism movable in the cable tunnel; the fire extinguishing mechanism includes a sliding mechanism installed between the top and bottom of the cable tunnel, and a spraying mechanism movable on the sliding mechanism for spraying fire extinguishing medium. The support and protection mechanism includes several support inclined plates (3) arranged on the inner wall of the cable tunnel, and a partition plate (4) arranged between two adjacent support inclined plates (3) in the same row and incised on the inner wall of the cable tunnel. The sliding mechanism includes a first slide rod (6) fixedly disposed at the top of the cable tunnel, a second slide rod (7) fixedly disposed at the bottom of the cable tunnel, a guide rod (10) slidably fitted between the first slide rod (6) and the second slide rod (7), and a first drive mechanism disposed at the top of the cable tunnel and connected to the guide rod (10) to drive the guide rod (10) to slide on the first slide rod (6) and the second slide rod (7); the spraying mechanism is disposed on the guide rod (10); The guide rod (10) has a first slider (8) at the top and a second slider (9) at the bottom. The first slider (8) is slidably mounted on the first slide rod (6), and the second slider (9) is slidably mounted on the second slide rod (7). The first drive mechanism is connected to the first slider (8). The spraying mechanism includes a spray box (15) that is movably mounted on the guide rod (10), and a second drive mechanism that is mounted on the first slider (8) and the guide rod (10) and connected to the spray box (15) to drive the spray box (15) to move on the guide rod (10). The first drive mechanism includes a first motor (11) located at one end of the top of the cable tunnel, a first drive sprocket (12) located on the drive shaft of the first motor (11), a first driven sprocket (13) located at the other end of the top of the cable tunnel, and a first chain (14) sleeved between the first drive sprocket (12) and the first driven sprocket (13) and connected to the first slider (8). There are two second drive mechanisms. The second drive mechanism includes a second motor (16) located at the bottom of the guide rod (10), a second drive sprocket (17) located on the drive shaft of the second motor (16), a second driven sprocket (18) located at the bottom of the first slider (8), and a second chain (19) sleeved between the second drive sprocket (17) and the second driven sprocket (18) and connected to the spray box (15).

2. The fireproof device for cable tunnels according to claim 1, characterized in that, Several parallel-distributed mounting slots (5) are provided on the inner wall of the cable tunnel, and several partition plates (4) are embedded in the mounting slots (5).

3. A fireproof device for cable tunnels according to claim 1, characterized in that, The spray box (15) has a container cavity (20) for containing fire extinguishing medium. The spray box (15) is provided with a conveying mechanism that is connected out from the container cavity (20) for conveying fire extinguishing medium. The spray box (15) is provided with a nozzle (26) that is connected out from the conveying mechanism and whose output end is located outside the spray box (15).

4. A fireproof device for cable tunnels according to claim 3, characterized in that, There are two conveying mechanisms, including a first conveying main pipe (21) connected from the loading cavity (20), a conveying pump (22) connected from the first conveying main pipe (21), a second conveying main pipe (23) connected from the conveying pump (22), a first conveying branch pipe (24) connected from the second conveying main pipe (23), and several second conveying branch pipes (25) respectively connected from the first conveying branch pipe (24); several nozzles (26) are connected to the second conveying branch pipes (25).

Images