A cold region highway tunnel drainage ditch heating and heat preservation anti-freezing structure

By combining a servo motor-driven wire rope circuit with a self-regulating heating cable, ice, silt, and other debris are automatically cleared from the drainage ditches of highway tunnels in cold regions, solving the problems of freezing and blockage in drainage ditches in cold regions and improving tunnel traffic efficiency.

CN224678829UActive Publication Date: 2026-08-25HEILONGJIANG BEILONG TRANSPORTATION ENG CO LTD
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Patent Information

Application Number
CN202522171865.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-14
Publication Date
2026-08-25
Estimated Expiration
2035-10-14

AI Technical Summary

Technical Problem

Drainage ditches in highway tunnels in cold regions are prone to freezing in low temperatures, leading to poor drainage. Manual cleaning is inefficient and cannot be done in real time, resulting in blockages caused by ice and silt, which affects tunnel traffic efficiency.

Method used

A servo motor-driven wire rope closed loop drives the cleaning scraper, which, combined with a self-regulating heating cable, heats the drainage ditch to automatically clean up accumulated debris. Impurities are then discharged through vibration via an inclined plate and eccentric wheel to prevent freezing.

Benefits of technology

It has enabled automated cleaning of drainage ditches in highway tunnels in cold regions, avoiding the inconvenience of manual cleaning, ensuring smooth water flow, preventing freezing, and improving tunnel traffic efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cold region highway tunnel drainage ditch heating heat preservation anti -freezing structure relates to drainage ditch anti -freezing technical field, and this utility model discloses a tunnel highway, and the both sides of tunnel highway top are all seted up with drainage ditch body, and the inside of drainage ditch body all is provided with cleaning scraper, and the both sides of cleaning scraper all are fixedly connected with steel wire rope, and closed loop is constituted between steel wire rope, through servo motor drive rotating roller and carry out rotation, because steel wire rope constitutes closed loop, simultaneously drives two cleaning scrapers and moves to opposite direction along the inside of drainage ditch body, and the accumulated material in the inside of drainage ditch body is pushed to one side of slag discharge groove with cleaning scraper, and is finally discharged through slag discharge groove, and the inside of drainage ditch body is dredged, avoids because artificial cleaning is not in time, leads to the accumulated material of silt, sundries, broken ice etc. in drainage ditch, hinders the smooth discharge of water flow, thereby forms partial waterlogging or slow -flow area, makes the water flow that remains freeze into ice problem.
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Description

Technical Field

[0001] This utility model relates to the field of drainage ditch antifreeze technology, specifically a heating, insulation and antifreeze structure for drainage ditches in highway tunnels in cold regions. Background Technology

[0002] In the field of highway tunnel engineering in cold regions, drainage ditch systems are key facilities to ensure the normal operation of tunnels. Their performance directly affects the structural safety and driving safety of tunnels. The special low-temperature environment in cold regions poses a dual challenge to tunnel drainage ditches: on the one hand, the water in the drainage ditches is prone to freezing into ice, leading to poor drainage or even complete blockage; on the other hand, ice, silt, and debris are easily generated in tunnels in cold environments, further exacerbating the risk of blockage in the drainage ditches.

[0003] However, traditional drainage ditches lack an active cleaning mechanism. Faced with the continuous accumulation of ice, silt, and debris, they rely on workers to perform regular manual cleaning, which not only consumes a lot of manpower and resources, but also requires the closure of part of the tunnel during cleaning operations, seriously affecting the normal traffic efficiency of the tunnel. At the same time, manual cleaning cannot achieve real-time cleaning. If silt, debris, ice fragments, etc. accumulate in the drainage ditch, they will obstruct the smooth flow of water, forming local water accumulation or slow-flowing areas. Stagnant water is more likely to freeze into ice. In order to solve the above problems, the inventors have proposed a heating, insulation and antifreeze structure for drainage ditches in cold-region highway tunnels. Utility Model Content

[0004] In order to solve the problem of automatic cleaning of drainage ditches in highway tunnels in cold regions, the purpose of this utility model is to provide a heating, heat preservation and antifreeze structure for drainage ditches in highway tunnels in cold regions.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: It includes a tunnel highway, with drainage ditch bodies on both sides of the top of the tunnel highway. Each drainage ditch body has a cleaning scraper inside, and steel wire ropes are fixedly connected to both sides of the cleaning scraper, forming a closed loop. An L-shaped plate is fixedly connected to one side of the tunnel highway, and a rotating roller is rotatably connected between the inner side of the L-shaped plate and the tunnel highway. Two limiting slots are provided on the rotating roller, and the steel wire ropes are wound inside the limiting slots. A servo motor is fixedly installed on the side of the L-shaped plate away from the tunnel highway, and the drive end of the servo motor is fixedly connected to the rotating shaft of the rotating roller.

[0006] Preferably, guide rollers are rotatably connected to both sides of the tunnel road near the drainage ditch body, and the steel wire ropes are sequentially wound around the outside of the guide rollers.

[0007] Preferably, guide grooves are provided on both sides of the inner wall of the drainage ditch body, and two rollers are rotatably connected to both sides of the cleaning scraper, with the rollers rolling and engaging inside the corresponding guide grooves. Preferably, slag discharge troughs are provided on both sides of the tunnel highway. The slag discharge troughs are connected to the interior of the drainage ditch body. An inclined plate is rotatably connected inside the slag discharge trough. One end of the guide roller shaft extends into the interior of the slag discharge trough and is fixedly connected to an eccentric wheel. The side of the eccentric wheel contacts the bottom surface of the inclined plate. Two symmetrically distributed springs are fixedly connected between the bottom surface of the inclined plate and the inner wall of the slag discharge trough.

[0008] Preferably, the tunnel road is equipped with self-regulating electric heating tapes inside the drainage ditch body, at the bottom and side walls, for heating the drainage ditch body.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The servo motor drives the rotating roller to rotate. Because the steel wire rope forms a closed loop, it also drives two cleaning scrapers to move horizontally in opposite directions along the inside of the drainage ditch. The cleaning scrapers push the accumulated material inside the drainage ditch to one side of the slag discharge trough and finally discharge it through the slag discharge trough. This dredges the drainage ditch and prevents the accumulation of mud, sand, debris, ice, etc. in the drainage ditch due to untimely manual cleaning, which can obstruct the smooth flow of water and form local water accumulation or slow flow areas, causing the stagnant water to freeze into ice. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a partial cross-sectional view of the present invention. Figure 1 .

[0013] Figure 3 This is a partial cross-sectional view of the present invention. Figure 2 .

[0014] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0015] Figure 5 This is a partial structural diagram of the present invention.

[0016] Figure 6This is a schematic diagram of the cleaning scraper and roller in this utility model.

[0017] In the diagram: 1. Tunnel road; 2. Drainage ditch body; 3. Cleaning scraper; 4. Steel wire rope; 5. L-shaped plate; 6. Rotating roller; 7. Limiting slot; 8. Guide roller; 9. Slag discharge trough; 10. Roller; 11. Guide groove; 12. Servo motor; 13. Self-regulating heating cable; 14. Inclined plate; 15. Eccentric wheel; 16. Spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figure 1-6 As shown, this utility model provides a heating, heat preservation and antifreeze structure for drainage ditches in cold-region highway tunnels, including a tunnel highway 1. Drainage ditch bodies 2 are provided on both sides of the top of the tunnel highway 1. Cleaning scrapers 3 are provided inside the drainage ditch bodies 2. Steel wire ropes 4 are fixedly connected to both sides of the cleaning scrapers 3, and the steel wire ropes 4 form a closed loop. An L-shaped plate 5 is fixedly connected to one side of the tunnel highway 1. A rotating roller 6 is rotatably connected between the inner side of the L-shaped plate 5 and the tunnel highway 1. Two limiting slots 7 are provided on the rotating roller 6, and the steel wire ropes 4 are wound inside the limiting slots 7.

[0020] Guide rollers 8 are rotatably connected to both sides of the tunnel road 1 on the side closest to the drainage ditch body 2, and steel wire ropes 4 are sequentially wound around the outside of the guide rollers 8.

[0021] By adopting the above technical solution and setting the guide roller 8, the movement of the wire rope 4 can be guided, so that the wire rope 4 moves in a fixed direction, thereby improving the stability of equipment operation.

[0022] Guide grooves 11 are provided on both sides of the inner wall of the drainage ditch body 2. Two rollers 10 are rotatably connected to both sides of the cleaning scraper 3. The rollers 10 are rolled and engaged in the interior of the corresponding guide grooves 11.

[0023] By adopting the above technical solution, the movement of the cleaning scraper 3 is limited by sliding the roller 10 inside the guide groove 11, thereby improving the stability of the cleaning scraper 3 when moving horizontally. Furthermore, by using the roller 10 for connection, the friction between the cleaning scraper 3 and the contact surface of the guide groove 11 is further reduced, thus facilitating the horizontal movement of the cleaning scraper 3.

[0024] A servo motor 12 is fixedly installed on the side of the L-shaped plate 5 away from the tunnel highway 1, and the drive end of the servo motor 12 is fixedly connected to the rotating shaft of the rotating roller 6.

[0025] By adopting the above technical solution and setting the servo motor 12, it is easier to drive the rotating roller 6 to rotate, thereby realizing the driving of the cleaning scraper 3.

[0026] Both ends of the tunnel highway 1 are provided with slag discharge troughs 9. The slag discharge troughs 9 are connected to the interior of the drainage ditch body 2. The interior of the slag discharge troughs 9 is rotatably connected with inclined plates 14.

[0027] By adopting the above technical solution and setting up the slag discharge trough 9, it is convenient to discharge the accumulated material cleaned inside the drainage ditch body 2.

[0028] One end of the shaft of one of the guide rollers 8 extends into the interior of the slag discharge trough 9 and is fixedly connected to an eccentric wheel 15. The side of the eccentric wheel 15 contacts the bottom surface of the inclined plate 14. Two symmetrically distributed springs 16 are fixedly connected between the bottom surface of the inclined plate 14 and the inner wall of the slag discharge trough 9.

[0029] By adopting the above technical solution, when the wire rope 4 moves around the guide roller 8, it drives the guide roller 8 to rotate, and at the same time drives the eccentric wheel 15 to rotate, and pushes the inclined plate 14 upward and rotates. The elastic force of the spring 16 is used to reset the inclined plate 14, thereby realizing the vertical reciprocating vibration of the inclined plate 14, which vibrates and discharges the impurities that fall into the top of the inclined plate 14, preventing the impurities from accumulating at the top of the inclined plate 14.

[0030] Self-regulating electric heating tape 13 is laid inside the tunnel highway 1 and at the bottom and side walls of the drainage ditch body 2. The self-regulating electric heating tape 13 is used to heat the drainage ditch body 2.

[0031] By adopting the above technical solution and setting a self-regulating heating cable 13, it is convenient to heat the inside of the drainage ditch body 2, thereby further preventing water from freezing inside the drainage ditch body 2.

[0032] Working principle: When the drainage ditch of the highway tunnel in the cold region is in use, the servo motor 12 drives the rotating roller 6 to rotate. Since the steel wire rope 4 forms a closed loop, it drives the two cleaning scrapers 3 to move horizontally in opposite directions along the inside of the drainage ditch body 2. During the movement, the cleaning scraper 3 is facilitated by the cooperation between the roller 10 and the guide groove 11, which makes it easier for the cleaning scraper 3 to move and improves the stability of the cleaning scraper 3 during horizontal movement. At the same time, the guide roller 8 guides the movement of the steel wire rope 4, so that the steel wire rope 4 moves in a fixed direction, which improves the stability of the equipment operation. Finally, the accumulated material inside the drainage ditch body 2 is pushed to one side of the slag discharge trough 9 and discharged through the slag discharge trough 9, thus clearing the drainage ditch body 2. When the wire rope 4 moves around the guide roller 8, it drives the guide roller 8 to rotate, which in turn drives the eccentric wheel 15 to rotate, pushing the inclined plate 14 upward and rotating. The elastic force of the spring 16 resets the inclined plate 14, thereby realizing the vertical reciprocating vibration of the inclined plate 14. This vibration discharges impurities that fall onto the top of the inclined plate 14, preventing impurities from accumulating at the top of the inclined plate 14. During the movement of the cleaning scraper 3, the cooperation between the roller 10 and the guide groove 11 facilitates the movement of the cleaning scraper 3 and improves the stability of the cleaning scraper 3 when moving horizontally. At the same time, the guide roller 8 is used to guide the movement of the wire rope 4, further improving the stability of the equipment operation.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A heating, insulation, and antifreeze structure for drainage ditches in cold-region highway tunnels, comprising a tunnel highway (1), characterized in that: Drainage ditch bodies (2) are provided on both sides of the top of the tunnel road (1). Cleaning scrapers (3) are provided inside the drainage ditch bodies (2). Steel wire ropes (4) are fixedly connected to both sides of the cleaning scrapers (3). The steel wire ropes (4) form a closed loop. An L-shaped plate (5) is fixedly connected to one side of the tunnel road (1). A rotating roller (6) is rotatably connected between the inner side of the L-shaped plate (5) and the tunnel road (1). Two limiting slots (7) are provided on the rotating roller (6). The steel wire ropes (4) are wound inside the limiting slots (7).

2. The heating, insulation, and antifreeze structure for drainage ditches in cold-region highway tunnels as described in claim 1, characterized in that, Guide rollers (8) are rotatably connected to both sides of the tunnel road (1) near the drainage ditch body (2), and the steel wire ropes (4) are sequentially wound around the outside of the guide rollers (8).

3. The heating, insulation, and antifreeze structure for drainage ditches in cold-region highway tunnels as described in claim 1, characterized in that, The drainage ditch body (2) has guide grooves (11) on both sides of its inner wall. The cleaning scraper (3) has two rollers (10) rotatably connected to both sides. The rollers (10) are rolled and engaged in the interior of the corresponding guide grooves (11).

4. The heating, insulation, and antifreeze structure for drainage ditches in cold-region highway tunnels as described in claim 1, characterized in that, A servo motor (12) is fixedly installed on the side of the L-shaped plate (5) away from the tunnel highway (1), and the drive end of the servo motor (12) is fixedly connected to the shaft of the rotating roller (6).

5. The heating, insulation, and antifreeze structure for drainage ditches in cold-region highway tunnels as described in claim 2, characterized in that, Slag discharge troughs (9) are provided on both sides of the tunnel highway (1). The slag discharge troughs (9) are connected to the interior of the drainage ditch body (2). An inclined plate (14) is rotatably connected inside the slag discharge troughs (9).

6. The heating, insulation, and antifreeze structure for drainage ditches in cold-region highway tunnels as described in claim 5, characterized in that, One end of the shaft of one of the guide rollers (8) extends into the interior of the slag discharge trough (9) and is fixedly connected to an eccentric wheel (15). The side of the eccentric wheel (15) is in contact with the bottom surface of the inclined plate (14). Two symmetrically distributed springs (16) are fixedly connected between the bottom surface of the inclined plate (14) and the inner wall of the slag discharge trough (9).

7. The heating, insulation, and antifreeze structure for drainage ditches in cold-region highway tunnels as described in claim 1, characterized in that, The tunnel road (1) is equipped with a self-regulating electric heating cable (13) inside and at the bottom and side walls of the drainage ditch body (2), which is used to heat the drainage ditch body (2).