Cable trench ventilation cover plate

Abstract

The utility model relates to the technical field of cable trenches, and particularly discloses a cable trench ventilation cover plate which comprises a bottom plate laid on the upper side of a cable trench, an installation cylinder is arranged on a plate body of the bottom plate, an on-off control assembly is arranged in the installation cylinder, a plurality of heat exchange cylinders are sequentially arranged at the upper end of the installation cylinder, and heat conduction cylinders are arranged on the outer ring faces of the heat exchange cylinders in a sleeved mode. According to the utility model, through the arrangement of the plurality of heat exchange cylinders, the height of the unpowered fan is increased, so that the effect of a chimney formed by the mounting cylinder, the heat exchange cylinders and the unpowered fan is better, that is, a better heat dissipation effect on a cable in the cable trench is achieved; and when the outside sun irradiates, the heat conduction barrel absorbs heat and heats up and transfers heat to the heat conduction rod, so that the air in the heat exchange barrel is heated through the heat conduction rod, and the air in the heat exchange barrel is exhausted upwards more quickly after absorbing heat and heating up, so that the chimney effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trenches, in particular to a cable trench vent cover. Background Art

[0002] A cable trench is a facility used for laying cables, and when the cable trench is in use, a cover plate needs to be provided at the upper opening in order to protect the cables inside the trench.

[0003] The existing Chinese patent application number: 201721772460.1 discloses a cable channel ventilation cover, which is characterized in that it consists of a cover, a fan base and a fan body, the four corners of the cover are provided with through air inlet holes, the middle of the cover is provided with a through mounting hole, the fan base is composed of a sleeve and a first positioning component, the fan body includes an unpowered fan and a second positioning component, the sleeve is embedded in the mounting hole, and the unpowered fan is connected to the first positioning component through the second positioning component, thereby connecting the unpowered fan to the upper side of the sleeve.

[0004] When the above technology is in use, although the ventilation efficiency of the cover is improved by setting up an unpowered fan, since there is no component that can heat up the gas inside the casing, the ventilation efficiency improved by the unpowered fan during actual use needs to be improved; therefore, in order to solve the defect that the ventilation efficiency needs to be improved when the above technology is used, we propose a cable ditch ventilation cover. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a cable duct ventilating cover.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cable trench ventilation cover comprises a bottom plate laid on the upper side of the cable trench, a mounting tube is provided on the plate body of the bottom plate, an on-off control assembly is provided inside the mounting tube, a plurality of heat exchange tubes are sequentially provided on the upper end of the mounting tube, a heat conduction tube is sleeved on the outer ring surface of the heat exchange tube, a plurality of heat conduction rods are installed on the inner wall of the heat conduction tube, one end of each heat conduction rod away from the inner wall of the heat conduction tube is close to each other, a mounting seat is provided on the upper end of the uppermost heat exchange tube, an unpowered fan is installed on the upper end of the mounting seat, and a protective assembly is provided on the outer ring surface of the mounting seat corresponding to the unpowered fan.

[0008] Preferably, the on-off control assembly includes a valve plate and a joystick, the joystick is rotatably arranged on the cylinder body of the mounting cylinder, the valve plate is installed on the rod body of the joystick located inside the mounting cylinder, and the outer annular surface of the valve plate in a horizontal state contacts the inner wall of the mounting cylinder.

[0009] Preferably, a fixing block is provided on one side of the inner wall of the mounting cylinder, a matching magnetic sheet is provided on the upper surface of the fixing block corresponding to the valve sheet, and a counterweight is fixed on one end of the valve sheet away from the magnetic sheet.

[0010] Preferably, the mounting tube is sleeved with the heat exchange tube and the mounting seat by means of threads, and the outer annular surfaces of the heat exchange tube and the mounting seat are provided with a plurality of gripping protrusions.

[0011] Preferably, the inner wall of the heat exchange cylinder is sleeved with a heat transfer cylinder, and the heat transfer cylinder is fixedly connected to a plurality of heat conducting rods.

[0012] Preferably, the protection assembly includes a top cover and a bracket, the top cover is arranged above the unpowered fan, and the top cover is connected to the mounting seat through the bracket.

[0013] Preferably, a fixing plate is sleeved on the cylinder body of the installation cylinder located above the bottom plate, the lower end of the installation cylinder extends to below the bottom plate, and the fixing plate is connected to the end of the lower end of the installation cylinder by bolts.

[0014] The utility model provides a cable duct vent cover, which has the following beneficial effects:

[0015] 1: In the utility model, the height of the non-powered fan is increased by setting a plurality of heat exchange cylinders, so that the chimney effect composed of the installation cylinder, the heat exchange cylinder and the non-powered fan is better, that is, a better heat dissipation effect is achieved for the cables inside the cable trench; and when the sun is irradiated from the outside, the heat-conducting cylinder absorbs heat and heats up and transfers the heat to the heat-conducting rod, so that the air inside the heat exchange cylinder is heated by the heat-conducting rod, and the gas inside the heat exchange cylinder is discharged upward more quickly after absorbing heat and heating up, thereby further improving the chimney effect; thus, through the mutual cooperation of various components, the defect of the traditional solution that only relies on the non-powered fan for exhaust and causes low heat dissipation effect on the cable is solved.

[0016] 2: The setting of the on-off control component in the utility model is convenient for cutting off and opening the inside of the installation cylinder, that is, it is convenient to control whether the cable trench cover provides ventilation effect for the cable trench; the setting of the magnetic suction plate makes the valve plate more stable when cutting off the inside of the installation cylinder, and the setting of the counterweight block is convenient for keeping the valve plate stable when it is in a vertical state, so as to prevent the valve plate from automatically turning over when the gas flows inside the installation cylinder, thereby cutting off the gas flow inside the installation cylinder; the setting of the heat transfer cylinder allows the heat absorbed by the heat transfer cylinder to better contact the gas inside the heat exchange cylinder, so that the gas inside the heat exchange cylinder absorbs heat, heats up and flows upward, thereby accelerating the discharge speed of the gas inside the heat exchange cylinder, that is, accelerating the discharge speed of the gas inside the cable trench; the setting of the top cover is convenient to prevent rainwater from entering the cable trench in large quantities along the cylinders and causing water accumulation inside the cable trench. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is an overall schematic diagram of a cable duct vent cover proposed by the utility model;

[0018] Figure 2 This is a bottom view schematic diagram of a cable duct vent cover proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the disassembly of a fixing plate and a mounting tube of a cable channel ventilation cover plate proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the cooperation between the installation cylinder and the heat exchange cylinder of a cable channel ventilation cover plate proposed by the utility model;

[0021] Figure 5 A cable duct vent cover proposed by the utility model Figure 4 A is an enlarged schematic diagram;

[0022] Figure 6 A cable duct vent cover proposed by the utility model Figure 4 The enlarged schematic diagram of point B in FIG.

[0023] Figure 7 This is a schematic diagram of the disassembly of a heat-conducting tube and a heat-exchanging tube of a cable channel ventilation cover plate proposed by the utility model;

[0024] Figure 8 This is a schematic diagram of the cooperation between the installation tube and the valve plate of a cable channel ventilation cover plate proposed by the utility model.

[0025] In the figure: 1. bottom plate; 2. mounting tube; 3. heat exchange tube; 4. heat transfer tube; 5. heat transfer rod; 6. mounting seat; 7. unpowered fan; 8. valve plate; 9. joystick; 10. fixing block; 11. magnetic sheet; 12. gripping protrusion; 13. heat transfer tube; 14. top cover; 15. bracket; 16. fixing plate; 17. counterweight. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments. Example 1

[0027] Reference Figure 1-8A cable trench ventilation cover comprises a bottom plate 1 laid on the upper side of the cable trench, a mounting tube 2 is provided on the plate body of the bottom plate 1, an on-off control component is provided inside the mounting tube 2, a plurality of heat exchange tubes 3 are sequentially provided on the upper end of the mounting tube 2, a heat conduction tube 4 is sleeved on the outer ring surface of the heat exchange tube 3, a plurality of heat conduction rods 5 are installed on the inner wall of the heat conduction tube 4, and one end of each heat conduction rod 5 away from the inner wall of the heat conduction tube 4 is close to each other, a mounting seat 6 is provided on the upper end of the uppermost heat exchange tube 3, a non-powered fan 7 is installed on the upper end of the mounting seat 6, a protective component is provided on the outer ring surface of the mounting seat 6 corresponding to the non-powered fan 7, the heat conduction tube 4 and the heat conduction rod 5 are both copper parts, and the outer surface of the heat conduction tube 4 is coated with a heat absorbing coating. Example 2

[0028] Reference Figure 1-8 , when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that:

[0029] The on-off control assembly includes a valve plate 8 and an operating rod 9. The operating rod 9 is rotatably arranged on the cylinder body of the mounting cylinder 2. The valve plate 8 is installed on the rod body of the operating rod 9 located inside the mounting cylinder 2. The outer annular surface of the valve plate 8 in the horizontal state contacts the inner wall of the mounting cylinder 2. The setting of the on-off control assembly is convenient for cutting off and opening the inside of the mounting cylinder 2. That is, when it is necessary to ventilate and dissipate heat inside the cable trench, the operating rod 9 can be rotated to make the valve plate 8 change from a horizontal state to a vertical state. At this time, the inside of the mounting cylinder 2 is unobstructed. When ventilation and heat dissipation are not required in the cable trench, the valve plate 8 is controlled to return to a horizontal state, thereby cutting off the inside of the mounting cylinder 2. A fixing block 10 is provided on one side of the inner wall of the mounting cylinder 2, and a matching valve is provided on the upper surface of the fixing block 10 corresponding to the valve plate 8. The magnetic sheet 11 is provided, and a counterweight 17 is fixed to one end of the valve sheet 8 away from the magnetic sheet 11. The provision of the magnetic sheet 11 makes the valve sheet 9 more stable when cutting off the inside of the mounting cylinder 2. The provision of the counterweight 17 facilitates the stability of the valve sheet 8 when it is in a vertical state to prevent the valve sheet 8 from automatically turning over when the gas flows inside the mounting cylinder 2, thereby cutting off the gas flow inside the mounting cylinder 2. The mounting cylinder 2 is threadedly connected with the heat exchange cylinder 3 and the mounting seat 6. The outer ring surfaces of the heat exchange cylinder 3 and the mounting seat 6 are provided with a plurality of gripping protrusions 12. The provision of the gripping protrusions 12 facilitates the disassembly and installation of the heat exchange cylinder 3 and the mounting seat 6. Since the cylinder bodies are connected by threads, the disassembly and installation of the cylinder bodies are faster and more convenient.

[0030] The inner wall of the heat exchange cylinder 3 is sleeved with a heat transfer cylinder 13, which is also made of copper. The heat transfer cylinder 13 is fixedly connected to a plurality of heat conducting rods 5. The arrangement of the heat transfer cylinder 13 allows the heat absorbed by the heat conducting cylinder 4 to better contact the gas inside the heat exchange cylinder 3, so that the gas inside the heat exchange cylinder 3 absorbs heat and heats up and flows upward, thereby accelerating the discharge speed of the gas inside the heat exchange cylinder 3, that is, accelerating the discharge speed of the gas inside the cable trench; the protective component includes a top cover 14 and a bracket 15, the top cover 14 is arranged above the unpowered fan 7, and the top cover 14 is connected to the bracket 15 through the bracket 15 It is connected to the mounting seat 6. The top cover 14 is set so that when it rains outside, rainwater slides directly to the outside along the upper surface of the top cover 14, thereby preventing excessive rainwater from entering the unpowered fan 7, thereby causing rainwater to enter the cable trench in large quantities along each cylinder and cause water accumulation in the cable trench; a fixing plate 16 is sleeved on the cylinder of the mounting cylinder 2 located above the base plate 1, and the lower end of the mounting cylinder 2 extends to below the base plate 1. The fixing plate 16 is connected to the end of the lower end of the mounting cylinder 2 by bolts. The setting of the fixing plate 16 facilitates the fixing of the mounting cylinder 2.

[0031] Using principle and advantages: During the use of the utility model, the bottom plate 1 is installed on the upper side of the external cable trench, that is, the bottom plate 1 shields the inside of the cable trench, so as to protect the cable trench and the cables therein. Since the heat exchange tube 3 and the unpowered fan 7 are installed on the plate body of the bottom plate 1 through the installation tube 2, the unpowered fan 7 can suck the gas inside the heat exchange tube 3, and when the gas inside the heat exchange tube 3 is sucked, the gas under the bottom plate 1 is sucked through the installation tube 2, that is, at this time, the gas inside the cable trench can be sucked, and then the fresh gas from the outside enters the cable trench from the gap between the cable trench and the bottom plate 1, that is, at this time, air circulation is formed, and in this process, the moisture inside the cable trench can be reduced by the circulation of air, and the heat of the cable can be dissipated.

[0032] At the same time, in the above process, since a number of heat exchange tubes 3 are arranged between the unpowered fan 7 and the installation tube 2, that is, through the arrangement of a number of heat exchange tubes 3, the height of the unpowered fan 7 is increased, so that the chimney effect composed of the installation tube 2, the heat exchange tube 3 and the unpowered fan 7 is better, that is, the suction efficiency of the gas inside the cable trench is higher, thereby achieving a better heat dissipation effect on the cables inside the cable trench; and since a heat-conducting tube 4 is arranged on the outer ring surface of the heat exchange tube 3, and a heat-conducting rod 5 is arranged inside the heat exchange tube 3, that is, when the sun shines from the outside, the heat-conducting tube 4 absorbs heat and heats up and transfers the heat to the heat-conducting rod 5, so that the air inside the heat exchange tube 3 is heated by the heat-conducting rod 5, and the gas inside the heat exchange tube 3 is discharged upward more quickly after absorbing heat and heating up, thereby further enhancing the chimney effect; thus, through the mutual cooperation of various components, the defect of the traditional solution that only relies on the unpowered fan 7 for exhaust when used, resulting in a low heat dissipation effect on the cable, is solved.

[0033] It should be further explained that the setting of the on-off control component facilitates the cutting off and opening of the interior of the installation cylinder 2, that is, when the interior of the cable trench needs to be ventilated and heat-dissipated, the joystick 9 can be rotated to make the valve plate 8 change from a horizontal state to a vertical state, and the interior of the installation cylinder 2 is unobstructed at this time, and when ventilation and heat dissipation are not required in the cable trench, the valve plate 8 is controlled to return to a horizontal state, thereby cutting off the interior of the installation cylinder 2; the setting of the magnetic suction plate 11 makes the valve plate 9 more stable when cutting off the interior of the installation cylinder 2, and the setting of the counterweight block 17 facilitates the stability of the valve plate 8 when it is in a vertical state, so as to prevent the valve plate 8 from automatically flipping over when the gas flows inside the installation cylinder 2, thereby cutting off the gas flow inside the installation cylinder 2; the setting of the holding protrusion 12 facilitates personnel to disassemble and open the heat exchange cylinder 3 and the mounting seat 6. Installation, and because the cylinders are connected by threads, the cylinders can be disassembled and installed more quickly and conveniently; the setting of the heat transfer cylinder 13 allows the heat absorbed by the heat conductive cylinder 4 to better contact the internal gas of the heat exchange cylinder 3, so that the internal gas of the heat exchange cylinder 3 absorbs heat and heats up and flows upward, thereby accelerating the discharge speed of the internal gas of the heat exchange cylinder 3, that is, accelerating the discharge speed of the internal gas of the cable trench; the setting of the top cover 14 allows rainwater to slide directly to the outside along the upper surface of the top cover 14 when it rains outside, that is, avoiding excessive rainwater from entering the inside of the unpowered fan 7, thereby causing rainwater to enter the cable trench in large quantities along the cylinders and causing water accumulation in the cable trench; the fixing plate 16 is connected to the end of the lower end of the installation cylinder 2 by bolts, and the setting of the fixing plate 16 facilitates the fixing of the installation cylinder 2.

[0034] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable trench ventilation cover, comprising a bottom plate (1) laid on the upper side of the cable trench, characterized in that: The base plate (1) is provided with a mounting tube (2) on the plate body, an on-off control assembly is provided inside the mounting tube (2), a plurality of heat exchange tubes (3) are sequentially provided at the upper end of the mounting tube (2), a heat conduction tube (4) is sleeved on the outer ring surface of each heat exchange tube (3), a plurality of heat conduction rods (5) are installed on the inner wall of each heat conduction tube (4), and the ends of the heat conduction rods (5) away from the inner wall of the heat conduction tube (4) are close to each other, a mounting seat (6) is provided at the upper end of the topmost heat exchange tube (3), a non-powered fan (7) is installed at the upper end of the mounting seat (6), and a protective assembly is provided on the outer ring surface of the mounting seat (6) corresponding to the non-powered fan (7).

2. A cable channel vent cover according to claim 1, characterized in that: The on-off control assembly comprises a valve plate (8) and an operating rod (9), wherein the operating rod (9) is rotatably arranged on a cylinder body of the mounting cylinder (2), and the valve plate (8) is mounted on a rod body of the operating rod (9) located inside the mounting cylinder (2), and an outer annular surface of the valve plate (8) in a horizontal state contacts an inner wall of the mounting cylinder (2).

3. A cable channel ventilating cover plate according to claim 2, characterized in that: A fixing block (10) is provided on one side of the inner wall of the mounting cylinder (2); a matching magnetic attraction plate (11) is provided on the upper surface of the fixing block (10) corresponding to the valve plate (8); and a counterweight block (17) is fixed on one end of the valve plate (8) away from the magnetic attraction plate (11).

4. The cable channel vent cover according to claim 1, characterized in that: The mounting cylinder (2) is sleeved with the heat exchange cylinder (3) and the mounting seat (6) via threads, and the outer ring surfaces of the heat exchange cylinder (3) and the mounting seat (6) are provided with a plurality of gripping protrusions (12).

5. The cable channel vent cover according to claim 1, characterized in that: The inner wall of the heat exchange cylinder (3) is sleeved with a heat transfer cylinder (13), and the heat transfer cylinder (13) is fixedly connected to a plurality of heat conducting rods (5).

6. The cable channel vent cover according to claim 1, characterized in that: The protection assembly comprises a top cover (14) and a bracket (15); the top cover (14) is arranged above the unpowered fan (7); and the top cover (14) is connected to the mounting seat (6) via the bracket (15).

7. The cable channel vent cover according to claim 1, characterized in that: A fixing plate (16) is sleeved on the cylinder body of the installation cylinder (2) located above the bottom plate (1); the lower end of the installation cylinder (2) extends below the bottom plate (1); and the fixing plate (16) is connected to the end of the lower end of the installation cylinder (2) by means of bolts.

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