Cable trench cover plate and cover plate assembly
By installing a main ventilation duct, ventilation branch duct, condensation tank, and drainage tank inside the cable trench cover, the problem of poor ventilation in the cable trench is solved, achieving ventilation, heat dissipation, and dehumidification of the cable trench, and ensuring the safety and reliability of the cable system.
Patent Information
- Application Number
- CN202511506739.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-02-27
AI Technical Summary
Poor ventilation in cables leads to inadequate heat dissipation, causing overheating, accelerated insulation aging, and increased susceptibility to water leakage and dampness, which may result in equipment failure or safety accidents.
Design a cable trench cover with a main ventilation channel and ventilation branch channels to achieve ventilation and heat dissipation, and drain condensate through condensation tanks and drainage tanks to prevent rainwater from entering and ensure the safety and reliability of the cable system.
It achieves effective ventilation and heat dissipation in cable trenches, reduces temperature and humidity, prevents the effects of condensation, ensures the safe and reliable operation of cable systems, and avoids equipment failures and safety accidents.
Smart Images
Figure CN121584475A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cable trench technology, and in particular to a cable trench cover and cover assembly. Background Technology
[0002] To facilitate daily operation and maintenance, outdoor cables in substations, switch stations, and other locations are mostly laid in cable trenches, which are also covered with plates.
[0003] Poor ventilation in cable connections is a hidden yet significant problem. Its most direct harm is poor heat dissipation, leading to cable overheating, accelerated insulation aging, and a shortened lifespan. Cable trenches are prone to problems such as leaking covers and dampness inside the trench, which can cause equipment malfunctions at best, and large-scale power outages or even safety accidents at worst.
[0004] How to achieve ventilation in cable trenches while ensuring the safety and reliability of cable system operation is a technical problem that urgently needs to be solved. Summary of the Invention
[0005] This invention provides a cable trench cover and cover assembly, which aims to achieve ventilation of the cable trench while ensuring the safety and reliability of the cable system during operation.
[0006] This invention provides a cable trench cover, including a cover body, the cover body having a cover sidewall and a cover inner surface; The cover plate body has a main vent and at least one vent branch. The main vent has a first end opening formed on the side wall of the cover plate. The vent branch intersects with and communicates with the main vent, and the vent branch is used to communicate with the cable trench. The cover plate body is provided with a drainage groove. The cover plate body has a first end and a second end that are opposite each other along the length direction. The drainage groove extends from the first end of the cover plate body to the second end of the cover plate body. A condensation groove is provided on the inner surface of the cover plate. The condensation groove is used to communicate with the cable trench and is connected to the drainage groove.
[0007] In this embodiment of the invention, the cover plate body has a main ventilation channel and at least one ventilation branch channel. The main ventilation channel has a first end opening formed on the side wall of the cover plate. The ventilation branch channel intersects with and communicates with the main ventilation channel, and is also connected to the cable trench. Through the main ventilation channel and the ventilation branch channel, ventilation of the cable trench can be achieved, and heat dissipation can be achieved through ventilation, thereby reducing the temperature inside the cable trench. In addition, a condensation groove formed on the inner surface of the cover plate is connected to the cable trench. Condensate in the trench forms on the first bottom wall of the condensation groove and flows along the first bottom wall to the drainage groove, and is then discharged through the drainage groove. By draining the condensate, dehumidification of the cable trench can be achieved, ensuring the safe and reliable operation of the cable system and preventing the safety and reliability of the cable system from being affected by condensate. In summary, the cable trench cover plate provided by this embodiment of the invention can achieve ventilation of the cable trench and ensure the safe and reliable operation of the cable system. In addition, the first end opening, which connects to the outside, is formed on the side wall of the cover plate, making it difficult for rainwater to enter from the first end opening. This makes it difficult for rainwater to enter the cable trench through the main ventilation channel and ventilation branch channel, further ensuring the safety and reliability of the cable system during operation.
[0008] Optionally, the first bottom wall of the condensation tank away from the inner surface of the cover plate is provided with a condensation promoting layer, and the condensation promoting layer is made of metal.
[0009] Optionally, the thickness of the condensation promoting layer is 1mm-2mm along the height direction of the cable trench cover.
[0010] Optionally, the drainage trough is located at one end of the cover plate body along the width direction, the length direction of the condensation trough is parallel to the width direction of the cable trench cover plate, and there are multiple condensation troughs arranged at intervals along the length direction of the cable trench cover plate.
[0011] Optionally, the first bottom wall of the condensation tank away from the inner surface of the cover plate is inclined relative to the width direction of the cable trench cover plate, and the end of the first bottom wall away from the drainage tank is higher than the end of the first bottom wall close to the drainage tank.
[0012] Optionally, the cover sidewall includes two first sidewalls, which are opposite each other along the length of the cable trench cover. The main vent extends from one of the first sidewalls toward the other first sidewall, and the first end opening is formed on the first sidewall. The cover plate body is also provided with a drainage channel, which intersects with the main ventilation channel. One end of the drainage channel is connected to the main ventilation channel, and the other end of the drainage channel is connected to the drainage trough. Along the length direction of the cable trench cover plate, the drainage channel is located between the first end opening and at least one of the ventilation branches. The drainage channel is inclined relative to the width direction of the cable trench cover, and the end of the drainage channel that connects to the main vent is higher than the end of the drainage channel that connects to the drainage trough.
[0013] Optionally, the main vent extends from one of the first sidewalls to the other first sidewall, and the main vent penetrates the cover body, and the main vent has two first end openings respectively formed on the two first sidewalls; The number of drainage channels is two, and along the length of the cable trench cover, at least one of the ventilation branches is located between the two drainage channels; The main ventilation duct is inclined relative to the length direction of the cable trench cover, and one end of the main ventilation duct is higher than the other end of the main ventilation duct.
[0014] Optionally, the cover sidewall includes two first sidewalls, which are opposite each other along the length of the cable trench cover. The main vent extends from one of the first sidewalls toward the other first sidewall, and the first end opening is formed on the first sidewall. Along the width direction of the cable trench cover, multiple ventilation branches are provided on both sides of the main ventilation channel, and multiple ventilation branches located on the same side of the main ventilation channel form a ventilation branch group. In the same ventilation branch group, multiple ventilation branches are arranged at intervals along the length direction of the cable trench cover.
[0015] Optionally, the end of the ventilation branch away from the main ventilation channel is connected to an end vent hole, the end vent hole extending along the height direction of the cable trench cover, and the end vent hole having a second end opening formed on the inner surface of the cover.
[0016] The present invention also provides a cover assembly comprising a plurality of cable trench covers as described above, wherein the plurality of cable trench covers are arranged sequentially along the width direction of the cable trench covers.
[0017] Optionally, the cover body of the cable trench cover includes a body portion, a first mating portion and a second mating portion, the first mating portion and the second mating portion are respectively disposed at both ends of the body portion along the width direction, and the length directions of the first mating portion and the second mating portion are parallel to the length direction of the cable trench cover. The heights of the first mating part and the second mating part are both less than the height of the main body. The drainage groove in the cable trench cover is opened on the second mating part. In two adjacent cable trench covers, the first mating part of one cable trench cover is located above the second mating part of the other cable trench cover. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0019] Figure 1 A top view of a cable trench cover provided in an embodiment of the present invention; Figure 2 for Figure 1 Cross-sectional view at point A in the middle; Figure 3 for Figure 1 Schematic diagram of the cross-section at point B in the middle; Figure 4 for Figure 1 Schematic diagram of the cross section at point C; Figure 5 for Figure 1 Schematic diagram of the cross section at point D; Figure 6 A schematic diagram of a cable trench cover and a cable trench provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the assembly of two adjacent cable trench covers in the cover plate assembly provided in an embodiment of the present invention.
[0020] Figure label: 10-Cable trench cover, 11-Cover body, 111-First sidewall, 112-Second sidewall, 113-Third sidewall, 114-Fourth sidewall, 115-Inner surface of cover, 116-Body part, 117-First mating part, 118-Second mating part, 12-Main vent, 121-First end opening, 13-Ventilation branch, 14-End vent, 141-Second end opening, 15-Drainage groove, 151-Second bottom wall, 16-Condensation groove, 161-First bottom wall, 17-Condensation promoting layer, 18-Drainage groove, 19-Connecting port; 20-Cable trench body, 21-Cable trench, 22-External drainage groove, 23-Placement groove. Detailed Implementation
[0021] The technical solutions of the present invention will now be described with reference to the accompanying drawings in the embodiments of the present invention.
[0022] The embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.
[0023] Poor ventilation in cable trenches is a hidden yet significant problem. Its most direct harm is poor heat dissipation, leading to cable overheating, accelerated insulation aging, and shortened lifespan. Cable trenches are prone to problems such as leaking covers and dampness inside the trench, which can cause equipment malfunctions or even large-scale power outages and safety accidents. How to achieve ventilation in cable trenches while ensuring the safety and reliability of the cable system is a pressing technical problem that needs to be solved. To address these issues, this invention provides a cable trench cover, which is described in detail below.
[0024] Reference Figures 1 to 5 This invention provides a cable trench cover 10, as shown in the following embodiment. Figure 6 The cable trench body 20 has a cable trench 21, and the cable trench cover 10 is installed on top of the cable trench 21. The cable trench body 20 may also have a placement groove 23, in which the cable trench cover 10 may be placed.
[0025] Reference Figures 1 to 4 The cable trench cover 10 includes a cover body 11, which has a cover sidewall and an inner surface 115. A main vent 12 and at least one vent branch 13 are provided in the cover body 11. The main vent 12 has a first end opening 121 formed on the cover sidewall. The vent branch 13 intersects with and communicates with the main vent 12 and is used to communicate with the cable trench 21. A drainage groove 15 is provided on the cover body 11. The cover body 11 has a first end and a second end opposite to each other along the length direction. The drainage groove 15 extends from the first end of the cover body 11 to the second end of the cover body 11. A condensation groove 16 is provided on the inner surface 115 of the cover. The condensation groove 16 is used to communicate with the cable trench 21 and is also connected to the drainage groove 15. The condensation groove 16 has a first bottom wall 161 away from the inner surface 115 of the cover.
[0026] The cable trench cover 10 has a length direction, a width direction, and a height direction. The length direction of the cable trench cover 10 can be referred to... Figure 1 , Figure 4 and Figure 6 The direction indicated by arrow E in the middle indicates the width direction of the cable trench cover 10. Figures 1 to 3 , Figure 5 and Figure 7 As indicated by arrow F, the height direction of the cable trench cover 10 is perpendicular to the length direction and also perpendicular to the width direction. Along the length direction of the cable trench cover 10, the length of the cable trench cover 10 is greater than the width of the cable trench 21.
[0027] The cover body 11 has a length direction, a width direction, and a height direction, and the length direction, width direction, and height direction of the cover body 11 are consistent with the length direction, width direction, and height direction of the cable trench cover 10, respectively. The inner surface 115 of the cover is also the surface of the cover body 11 facing the cable trench 21, and the cable trench 21 also has an outer surface of the cover opposite to the inner surface 115 of the cover.
[0028] The cross-sectional shape of the main ventilation duct 12 can be circular, square, irregular, etc., and the cross-sectional shape of the ventilation branch duct 13 can be circular, square, irregular, etc. The ventilation branch duct 13 is directly connected to the cable trench 21, or the ventilation branch duct 13 is connected to the cable trench 21 through the end ventilation hole 14.
[0029] The drainage channel 15 has a second bottom wall 151, which can be a structure that is high in the middle and low at both ends. For example, the second bottom wall 151 includes a first half and a second half. One end of the first half is connected to the second half, and the other end extends to the first end of the cover plate body 11. One end of the second half is connected to the first half, and the other end extends to the second end of the cover plate body 11. The first half gradually decreases in the direction from the middle of the cover plate body 11 to the first end of the cover plate body 11. The second half gradually decreases in the direction from the middle of the cover plate body 11 to the second end of the cover plate body 11.
[0030] The first end opening 121 communicates with the outside. Specifically, the cover sidewall includes two first sidewalls 111, which are opposite each other along the length of the cable trench cover 10. The main ventilation channel 12 extends from one of the first sidewalls 111 toward the other first sidewall 111. The first end opening 121 is formed on the first sidewall 111. There is a first gap between the sidewall of the placement groove 23 and the first sidewall 111. The first end opening 121 communicates with the outside through this first gap.
[0031] In one embodiment, outside air can enter through the first end opening 121 of the main vent 12, and then enter the cable trench 21 through the vent branch 13 and the end vent 14. The outside air entering the cable trench 21 is circulated and then discharged to the outside again.
[0032] In related technologies, the temperature difference between the inside and outside of the cable trench causes condensation to form inside the trench. In this embodiment, the circulation of low-temperature and dry outside air reduces the temperature and humidity inside the cable trench 21, thereby reducing the amount of condensation generated. In this embodiment, the condensation groove 16 on the inner surface 115 of the cover plate is connected to the cable trench 21. The condensation in the trench forms on the first bottom wall 161 of the condensation groove 16 and flows along the first bottom wall 161 to the drainage groove 15, where it is then discharged.
[0033] The cable trench body 20 may also have an external drainage groove 22 through which condensate draining from the drainage trough 15 can be discharged. The external drainage groove 22 may be formed on the bottom wall of the placement trough 23. The drainage trough 15 extends from the first side wall 111 at the first end of the cover body 11 to the first side wall 111 at the second end of the cover body 11. Condensate draining from the drainage trough 15 can flow through the first gap between the first side wall 111 and the side wall of the placement trough 23 to the external drainage groove 22. Rainwater flowing in from the first gap between the first side wall 111 and the side wall of the placement trough 23 can be discharged through the external drainage groove 22.
[0034] In this embodiment of the invention, a main ventilation channel 12 and at least one ventilation branch channel 13 are provided inside the cover plate body 11. The main ventilation channel 12 has a first end opening 121 formed on the side wall of the cover plate. The ventilation branch channel 13 intersects with and communicates with the main ventilation channel 12, and communicates with the cable trench 21. Through the main ventilation channel 12 and the ventilation branch channel 13, ventilation of the cable trench 21 can be achieved, and heat dissipation can be achieved through ventilation, thereby reducing the temperature inside the cable trench 21. In addition, a condensation groove 16 opened on the inner surface 115 of the cover plate communicates with the cable trench 21. Condensate in the groove will form on the first bottom wall 161 of the condensation groove 16 and flow along the first bottom wall 161 to the drainage groove 15, and then be discharged through the drainage groove 15. By draining the condensate, the cable trench 21 can be dehumidified, ensuring the safety and reliability of the cable system during operation and avoiding the impact on the safety and reliability of the cable system during operation due to condensate. In summary, the cable trench cover 10 provided in this embodiment of the invention can achieve ventilation of the cable trench 21, while ensuring the safety and reliability of the cable system during operation.
[0035] In addition, the first end opening 121, which connects to the outside, is formed on the side wall of the cover plate, making it difficult for rainwater to enter from the first end opening 121. This makes it difficult for rainwater to enter the cable trench 21 through the main ventilation channel 12 and the ventilation branch channel 13, further ensuring the safety and reliability of the cable system during operation.
[0036] In some embodiments, refer to Figure 4 A condensation promoting layer 17 is provided on the first bottom wall 161 of the condensation tank 16 away from the inner surface 115 of the cover plate. The condensation promoting layer 17 is made of metal. Specifically, the material of the condensation promoting layer 17 is a corrosion-resistant metal, such as stainless steel. In this embodiment, condensate in the trench will form on the condensation promoting layer 17 and flow along the condensation promoting layer 17 to the drainage tank 15, and then be discharged through the drainage tank 15. Metal has a high thermal conductivity. In this embodiment, the condensation promoting layer 17 made of metal facilitates the formation of condensate in the trench.
[0037] In some embodiments, the thickness of the condensation promoting layer 17 along the height direction of the cable trench cover 10 is 1mm-2mm. The thickness of the condensation promoting layer 17 can be 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 2mm, etc. Within this thickness range, the condensation promoting layer 17 facilitates the formation of condensate in the trench and also strengthens the cover body 11.
[0038] In some embodiments, the drainage channel 15 is located at one end of the cover plate body 11 along the width direction, and the length direction of the condensation channel 16 is parallel to the width direction of the cable trench cover plate 10. There are multiple condensation channels 16, arranged at intervals along the length direction of the cable trench cover plate 10. The number of condensation channels 16 can be 2 to 10, for example, 2, 3, 4, 5, 6, 7, 8, 9, 10, etc. By setting multiple condensation channels 16, as much condensate formed in the trench as possible can be discharged.
[0039] In some embodiments, refer to Figure 3 The first bottom wall 161 of the condensation tank 16, which is away from the inner surface 115 of the cover plate, is inclined relative to the width direction of the cable trench cover plate 10, and the end of the first bottom wall 161 away from the drainage tank 15 is higher than the end of the first bottom wall 161 close to the drainage tank 15.
[0040] The inclination angle of the first bottom wall 161 can be 1°-10°, preferably 1°-5°. When the first bottom wall 161 of the condensation tank 16, which is away from the inner surface 115 of the cover plate, is provided with a condensation promoting layer 17, the condensation promoting layer 17 is correspondingly inclined, and the inclination angle of the condensation promoting layer 17 is equal to the inclination angle of the first bottom wall 161. By inclining the first bottom wall 161, condensate can flow smoothly and quickly into the drain tank 15.
[0041] The cover plate body 11 has a second sidewall 112, a third sidewall 113, and a fourth sidewall 114. (See reference...) Figure 2 , Figure 3 and Figure 7The cover body 11 of the cable trench cover 10 includes a body portion 116, a first mating portion 117, and a second mating portion 118. The first mating portion 117 and the second mating portion 118 are respectively located at both ends of the body portion 116 along the width direction, and the length directions of the first mating portion 117 and the second mating portion 118 are parallel to the length direction of the cable trench cover 10. The heights of the first mating portion 117 and the second mating portion 118 are both less than the height of the body portion 116. The drainage groove 15 in the cable trench cover 10 is formed on the second mating portion 118. The second side wall 112 is the side wall of the first mating portion 117 away from the body portion 116, the third side wall 113 is the side wall of the body portion 116 close to the first mating portion 117, and the fourth side wall 114 is the side wall of the body portion 116 close to the second mating portion 118. The bottom end of the fourth side wall 114 can extend to the second bottom wall 151 of the drainage groove 15.
[0042] The end of the condensation tank 16 away from the drainage tank 15 extends to the third side wall 113. The end of the condensation tank 16 near the drainage tank 15 is connected to the drainage tank 15 through a connecting port 19, which is located near the first bottom wall 161. When the first bottom wall 161 of the condensation tank 16 away from the inner surface 115 of the cover plate is provided with a condensation promoting layer 17, the condensate in the trench will form on the condensation promoting layer 17 and flow along the condensation promoting layer 17 through the connecting port 19 to the drainage tank 15, and then be discharged through the drainage tank 15.
[0043] In some embodiments, refer to Figure 1 , Figure 4 and Figure 5 The cover plate sidewall includes two first sidewalls 111, which are opposite each other along the length of the cable trench cover plate 10. The main ventilation channel 12 extends from one of the first sidewalls 111 toward the other first sidewall 111. A first end opening 121 is formed on the first sidewall 111. A drainage channel 18 is also provided in the cover plate body 11. The drainage channel 18 intersects with the main ventilation channel 12. One end of the drainage channel 18 is connected to the main ventilation channel 12, and the other end of the drainage channel 18 is connected to the drainage trough 15. Along the length of the cable trench cover plate 10, the drainage channel 18 is located between the first end opening 121 and at least one ventilation branch 13. The drainage channel 18 is inclined relative to the width direction of the cable trench cover plate 10, and the end of the drainage channel 18 connected to the main ventilation channel 12 is higher than the end of the drainage channel 18 connected to the drainage trough 15.
[0044] In one embodiment, both ends of the main vent 12 are open ends. In this case, the main vent 12 extends from one of the first sidewalls 111 to the other first sidewall 111, and the main vent 12 penetrates the cover body 11. The main vent 12 has two first end openings 121 respectively formed on the two first sidewalls 111. In another embodiment, one end of the main vent 12 is an open end, and the other end is a blind end. In this case, the main vent 12 has only one first end opening 121.
[0045] The cross-sectional shape of the drainage channel 18 can be circular, square, irregular, etc. The inclination angle of the drainage channel 18 can be 1°-10°, preferably 1°-5°. Rainwater that accidentally enters the main vent 12 through the first end opening 121 will first flow into the drainage channel 18, then flow along the drainage channel 18 to the drainage trough 15, and then be discharged from the drainage trough 15. This can prevent rainwater from entering the cable trench 21 through the main vent 12, the vent branch 13, and the end vent 14 in rainy weather.
[0046] In some embodiments, refer to Figure 1 , Figure 4 and Figure 5 The main vent 12 extends from one of the first sidewalls 111 to the other first sidewall 111 and penetrates the cover body 11. The main vent 12 has two first end openings 121 formed on the two first sidewalls 111 respectively. There are two drainage channels 18. Along the length direction of the cable trench cover 10, at least one ventilation branch 13 is located between the two drainage channels 18. The main vent 12 is inclined relative to the length direction of the cable trench cover 10, and one end of the main vent 12 is higher than the other end of the main vent 12.
[0047] The tilt angle of the main ventilation duct 12 can be 1°-10°, preferably 1°-5°. In one embodiment, Figure 4 The left end of the main vent 12 is higher than the right end of the main vent 12. Both drainage channels 18 are inclined relative to the width direction of the cable trench cover 10, and the end of the drainage channel 18 that connects to the main vent 12 is higher than the end of the drainage channel 18 that connects to the drainage trough 15.
[0048] One of the drainage channels 18 is located near the first end of the cover body 11, and the other drainage channel 18 is located near the second end of the cover body 11. Rainwater that accidentally enters the main vent 12 through either of the first end openings 121 will first flow into the drainage channel 18, then flow along the drainage channel 18 to the drainage trough 15, and then be discharged from the drainage trough 15. This can prevent rainwater from entering the cable trench 21 through the main vent 12, the ventilation branch 13, and the end vent 14 in rainy weather.
[0049] In some embodiments, refer to Figure 1 The cover plate sidewall includes two first sidewalls 111, which are opposite each other along the length direction of the cable trench cover plate 10. The main ventilation channel 12 extends from one of the first sidewalls 111 toward the other first sidewall 111, and a first end opening 121 is formed on the first sidewall 111. Along the width direction of the cable trench cover plate 10, multiple ventilation branches 13 are provided on both sides of the main ventilation channel 12, and multiple ventilation branches 13 located on the same side of the main ventilation channel 12 form a ventilation branch group. In the same ventilation branch group, multiple ventilation branches 13 are arranged at intervals along the length direction of the cable trench cover plate 10.
[0050] In a single ventilation branch group, the number of ventilation branches 13 can be two, three, four, etc. As an example, in a single ventilation branch group, there are two ventilation branches 13; in the cable trench cover 10, the total number of ventilation branches 13 is four. The two ventilation branch groups located on either side of the main ventilation duct 12 can be symmetrically arranged. In this embodiment, the arrangement of multiple ventilation branches 13 ensures effective ventilation.
[0051] In some embodiments, refer to Figure 2 One end of the ventilation branch 13 away from the main ventilation duct 12 is connected to an end ventilation hole 14. The end ventilation hole 14 extends along the height direction of the cable trench cover 10. The end ventilation hole 14 has a second end opening 141 formed on the inner surface 115 of the cover. The second end opening 141 is used to directly communicate with the cable trench 21.
[0052] The cross-sectional shape of the end vent 14 can be circular, square, irregular, etc. The ventilation branch 13 is inclined relative to the width direction of the cable trench cover 10, and the end of the ventilation branch 13 that connects to the main ventilation channel 12 is higher than the end of the ventilation branch 13 that connects to the end vent 14. The inclination angle of the ventilation branch 13 can be 1°-10°, preferably 1°-5°.
[0053] The cable trench cover 10 provided in this embodiment of the invention enables ventilation of the cable trench 21 through the main ventilation channel 12, ventilation branch channels 13, and end ventilation holes 14. This ventilation also facilitates heat dissipation, thereby reducing the temperature within the cable trench 21. Furthermore, condensate in the trench forms on the condensation promoting layer 17 and flows along the condensation promoting layer 17 through the connecting port 19 to the drainage trough 15, where it is then discharged. By draining the condensate, dehumidification of the cable trench 21 is achieved, ensuring the safe and reliable operation of the cable system and preventing the safety and reliability of the cable system from being affected by condensate.
[0054] Furthermore, the first end opening 121, which connects to the outside, is formed on the first side wall 111, making it difficult for rainwater to enter through the first end opening 121. This prevents rainwater from entering the cable trench 21 through the main ventilation channel 12 and the ventilation branch channel 13. Rainwater that accidentally enters the main ventilation channel 12 through the first end opening 121 will first flow into the drainage channel 18, and then flow along the drainage channel 18 to the drainage trough 15, and then be discharged from the drainage trough 15. This can prevent rainwater from entering the cable trench 21 through the main ventilation channel 12, the ventilation branch channel 13 and the end ventilation hole 14 in rainy weather, further ensuring the safety and reliability of the cable system during operation.
[0055] This invention also provides a cover assembly, including a plurality of cable trench covers 10 as described above. The cable trench covers 10 are arranged sequentially along their width direction. The outer surfaces of adjacent cable trench covers 10 are substantially flush, and the inner surfaces 115 of adjacent cable trench covers 10 are substantially flush. Each cable trench cover 10 includes a cover body 11, which has cover sidewalls and an inner surface 115. A main ventilation channel 12 and at least one ventilation branch channel are provided within the cover body 11. 13. The main vent 12 has a first end opening 121 formed on the side wall of the cover plate. The vent branch 13 intersects and communicates with the main vent 12, and the vent branch 13 is used to communicate with the cable trench 21. A drainage groove 15 is provided on the cover plate body 11. The cover plate body 11 has a first end and a second end opposite to each other along the length direction. The drainage groove 15 extends from the first end of the cover plate body 11 to the second end of the cover plate body 11. A condensation groove 16 is provided on the inner surface 115 of the cover plate. The condensation groove 16 communicates with the drainage groove 15.
[0056] In some embodiments, refer to Figure 7 The cover body 11 of the cable trench cover 10 includes a body portion 116, a first mating portion 117, and a second mating portion 118. The first mating portion 117 and the second mating portion 118 are respectively located at both ends of the body portion 116 along the width direction, and the length directions of the first mating portion 117 and the second mating portion 118 are parallel to the length direction of the cable trench cover 10. The height of the first mating portion 117 and the second mating portion 118 is less than the height of the body portion 116. The drainage groove 15 in the cable trench cover 10 is opened on the second mating portion 118. In two adjacent cable trench covers 10, the first mating portion 117 of one cable trench cover 10 is located above the second mating portion 118 of the other cable trench cover 10.
[0057] The cover body 11 has a second side wall 112, a third side wall 113 and a fourth side wall 114. The second side wall 112 is the side wall of the first mating part 117 away from the body part 116. The third side wall 113 is the side wall of the body part 116 close to the first mating part 117. The fourth side wall 114 is the side wall of the body part 116 close to the second mating part 118. The bottom end of the fourth side wall 114 can extend to the second bottom wall 151 of the drainage groove 15.
[0058] In this embodiment of the invention, ventilation of the cable trench 21 can be achieved through the main ventilation duct 12 and the ventilation branch duct 13, and heat dissipation can be achieved through ventilation, thereby reducing the temperature inside the cable trench 21. In addition, condensate in the trench will form on the first bottom wall 161 of the condensation tank 16 and flow along the first bottom wall 161 to the drainage tank 15, and then be discharged through the drainage tank 15. By draining the condensate, dehumidification of the cable trench 21 can be achieved, ensuring the safe and reliable operation of the cable system and avoiding the impact on the safe and reliable operation of the cable system due to condensate.
[0059] A second gap exists between two adjacent cable trench covers 10. Specifically, the second gap is formed between the second sidewall 112 of one cable trench cover 10 and the fourth sidewall 114 of the adjacent cable trench cover 10, and the second gap communicates with the corresponding drainage trough 15. In this embodiment of the invention, rainwater flowing in from the second gap between two adjacent cable trench covers 10 can be discharged through the drainage trough 15, which can prevent rainwater flowing in from the second gap between two adjacent cable trench covers 10 from entering the cable trench 21, thereby further ensuring the safety and reliability of the cable system during operation.
[0060] In some embodiments, a condensation promoting layer 17 is provided on the first bottom wall 161 of the condensation tank 16 away from the inner surface 115 of the cover plate, and the condensation promoting layer 17 is made of metal.
[0061] In some embodiments, the drainage groove 15 is located at one end of the cover plate body 11 along the width direction, the length direction of the condensation groove 16 is parallel to the width direction of the cable trench cover plate 10, and there are multiple condensation grooves 16 arranged at intervals along the length direction of the cable trench cover plate 10.
[0062] In some embodiments, the first bottom wall 161 of the condensation tank 16 away from the inner surface 115 of the cover plate is inclined relative to the width direction of the cable trench cover plate 10, and the end of the first bottom wall 161 away from the drainage tank 15 is higher than the end of the first bottom wall 161 close to the drainage tank 15.
[0063] In some embodiments, the cover sidewall includes two first sidewalls 111, which are opposite each other along the length of the cable trench cover 10. The main vent 12 extends from one of the first sidewalls 111 toward the other first sidewall 111, and a first end opening 121 is formed on the first sidewall 111. A drainage channel 18 is also provided in the cover body 11, which intersects with the main vent 12. One end of the drainage channel 18 is connected to the main vent 12, and the other end of the drainage channel 18 is connected to the drainage trough 15. Along the length of the cable trench cover 10, the drainage channel 18 is located between the first end opening 121 and at least one ventilation branch 13. The drainage channel 18 is inclined relative to the width direction of the cable trench cover 10, and the end of the drainage channel 18 connected to the main vent 12 is higher than the end of the drainage channel 18 connected to the drainage trough 15.
[0064] In some embodiments, the main vent 12 extends from one of the first sidewalls 111 to the other first sidewall 111 and penetrates the cover body 11. The main vent 12 has two first end openings 121 formed on the two first sidewalls 111 respectively. There are two drainage channels 18. Along the length direction of the cable trench cover 10, at least one ventilation branch 13 is located between the two drainage channels 18. The main vent 12 is inclined relative to the length direction of the cable trench cover 10, and one end of the main vent 12 is higher than the other end of the main vent 12.
[0065] In some embodiments, the cover sidewall includes two first sidewalls 111, which are opposite each other along the length of the cable trench cover 10. The main ventilation channel 12 extends from one of the first sidewalls 111 toward the other first sidewall 111, and a first end opening 121 is formed on the first sidewall 111. Along the width direction of the cable trench cover 10, a plurality of ventilation branches 13 are provided on both sides of the main ventilation channel 12, and the plurality of ventilation branches 13 located on the same side of the main ventilation channel 12 form a ventilation branch group. In the same ventilation branch group, the plurality of ventilation branches 13 are arranged at intervals along the length direction of the cable trench cover 10.
[0066] In some embodiments, the end of the ventilation branch 13 away from the main ventilation duct 12 is connected to an end ventilation hole 14. The end ventilation hole 14 extends along the height direction of the cable trench cover 10 and has a second end opening 141 formed on the inner surface 115 of the cover. The second end opening 141 is used to communicate directly with the cable trench 21.
[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0068] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is described as "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0069] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.
[0070] The cable trench cover and cover assembly provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the structure and core idea of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.
Claims
1. A cable trench cover, characterized in that Includes a cover plate body (11), the cover plate body (11) having a cover plate sidewall and a cover plate inner surface (115); The cover plate body (11) is provided with a main ventilation channel (12) and at least one ventilation branch channel (13). The main ventilation channel (12) has a first end opening (121) formed on the side wall of the cover plate. The ventilation branch channel (13) intersects with and communicates with the main ventilation channel (12), and the ventilation branch channel (13) is used to communicate with the cable trench (21). The cover plate body (11) is provided with a drainage groove (15). The cover plate body (11) has a first end and a second end opposite to each other along the length direction. The drainage groove (15) extends from the first end of the cover plate body (11) to the second end of the cover plate body (11). A condensation groove (16) is provided on the inner surface (115) of the cover plate. The condensation groove (16) is used to communicate with the cable trench (21), and the condensation groove (16) is connected to the drainage groove (15).
2. The cable trough cover of claim 1, wherein, The first bottom wall (161) of the condensation tank (16) away from the inner surface (115) of the cover plate is provided with a condensation promoting layer (17), and the condensation promoting layer (17) is made of metal.
3. A cable pit cover according to claim 2, characterised in that Along the height direction of the cable trench cover (10), the thickness of the condensation promoting layer (17) is 1mm-2mm.
4. Cable pit cover according to any one of claims 1 to 3, characterized in that The drainage trough (15) is located at one end of the cover plate body (11) along the width direction. The length direction of the condensation trough (16) is parallel to the width direction of the cable trench cover plate (10). There are multiple condensation troughs (16), and multiple condensation troughs (16) are arranged at intervals along the length direction of the cable trench cover plate (10).
5. A cable duct cover according to claim 4, characterised in that The first bottom wall (161) of the condensation tank (16) away from the inner surface (115) of the cover plate is inclined relative to the width direction of the cable trench cover plate (10), and the end of the first bottom wall (161) away from the drainage tank (15) is higher than the end of the first bottom wall (161) close to the drainage tank (15).
6. Cable pit cover according to any of claims 1 to 3, characterized in that The cover sidewall includes two first sidewalls (111), which are opposite each other along the length of the cable trench cover (10). The main ventilation channel (12) extends from one of the first sidewalls (111) toward the other first sidewall (111), and the first end opening (121) is formed on the first sidewall (111). The cover body (11) is also provided with a drainage channel (18), which intersects with the main ventilation channel (12). One end of the drainage channel (18) is connected to the main ventilation channel (12), and the other end of the drainage channel (18) is connected to the drainage trough (15). Along the length of the cable trench cover (10), the drainage channel (18) is located between the first end opening (121) and at least one ventilation branch (12). The drain channel (18) is arranged obliquely relative to the width direction of the cable trench cover plate (10), and the end of the drain channel (18) communicating with the main air passage (12) is higher than the end of the drain channel (18) communicating with the drain groove (15).
7. A cable pit cover according to claim 6, characterised in that The main air passage (12) extends from one of the first side walls (111) to the other first side wall (111) and penetrates the cover plate body (11), and the main air passage (12) has two first end openings (121) formed on the two first side walls (111) respectively. The number of the drain channels (18) is two, and at least one air passage branch (13) is located between the two drain channels (18) along the length direction of the cable trench cover plate (10). The main air passage (12) is arranged obliquely relative to the length direction of the cable trench cover plate (10), and one end of the main air passage (12) is higher than the other end of the main air passage (12).
8. Cable pit cover according to any of claims 1 to 3, characterized in that The cover plate side wall includes two first side walls (111) opposite along the length direction of the cable trench cover plate (10), and the main air passage (12) extends from one of the first side walls (111) toward the other first side wall (111), and the first end opening (121) is formed on the first side wall (111). Along the width direction of the cable trench cover plate (10), a plurality of air passage branches (13) are arranged on both sides of the main air passage (12) respectively, and the plurality of air passage branches (13) located on the same side of the main air passage (12) form an air passage branch group. In the same air passage branch group, the plurality of air passage branches (13) are arranged at intervals along the length direction of the cable trench cover plate (10).
9. Cable pit cover according to any of claims 1 to 3, characterized in that The end of the air passage branch (13) away from the main air passage (12) is connected with a terminal air hole (14), the terminal air hole (14) extends along the height direction of the cable trench cover plate (10), and the terminal air hole (14) has a second end opening (141) formed on the cover plate inner surface (115).
10. A cover plate assembly characterized by, A plurality of cable trench cover plates (10) as claimed in any one of claims 1 to 10 are arranged in sequence along the width direction of the cable trench cover plate (10).
11. The cover plate assembly of claim 10, wherein, The cover plate body (11) in the cable trench cover plate (10) includes a body portion (116), a first matching portion (117) and a second matching portion (118), the first matching portion (117) and the second matching portion (118) are arranged at the two ends of the body portion (116) along the width direction respectively, and the length directions of the first matching portion (117) and the second matching portion (118) are parallel to the length direction of the cable trench cover plate (10). The height of the first fitting part (117) and the second fitting part (118) is less than the height of the body part (116), a drainage groove (15) is arranged on the second fitting part (118) in the cable trench cover plate (10), and the first fitting part (117) of one of the two adjacent cable trench cover plates (10) is located above the second fitting part (118) of the other cable trench cover plate (10).