High-cold frozen soil area highway drainage ditch anti-frost heaving expansion device

Abstract

The utility model discloses a high cold frozen soil area highway drainage ditch anti frost heave expansion device, including the drainage ditch body, the upper end surface of drainage ditch body is provided with the protection mechanism, and the protection mechanism is used for preventing the pedestrian and the vehicle to fall into the inside of drainage ditch body, and the protection mechanism includes the expansion screw that installs in the inside of drainage ditch body, and the outside of expansion screw is sleeved with the cushion block, and one end of cushion block is connected with the guardrail, and the inside of guardrail all is provided with the support rod, and the inside of drainage ditch body is provided with the anti frost heave mechanism, can use solar energy to heat the inside of drainage ditch body through burying the heat -collecting pipe and the cooling fin in the inside of drainage ditch body, effectively prevent the frost heave of drainage ditch body and highway, through the expansion pipe insertion inside drainage ditch body, and use screw thread connection expansion pipe, the convenient fixed installation support plate and the water stop tape, and the design of water stop tape can have good ductility and waterproofness, thereby can effectively prevent the water flow infiltration and frost heave caused by the expansion and settlement of drainage ditch body.

Description

Technical Field

[0001] This utility model relates to the technical field of highway drainage devices, specifically to a frost-resistant expansion joint device for highway drainage ditches in high-altitude and cold permafrost regions. Background Technology

[0002] For high-altitude and cold regions, seasonal frost heave is the biggest factor damaging drainage ditches and soil layers. After the rainy season, temperatures drop rapidly, and if rainwater cannot be drained in time, frozen soil can easily form. Once the frozen soil thaws, a large amount of water accumulates. If seepage water on both sides of the drainage ditch cannot be drained in time, it may damage the sidewalls, causing uneven settlement of the soil on both sides. Furthermore, frost heave can lead to geological disasters. Therefore, water is a significant influencing factor that cannot be ignored, making drainage management particularly important in high-altitude and cold regions.

[0003] For example, the frost-resistant drainage structure for a drainage ditch in a cold region disclosed in CN218713712U includes a foundation pit, a horizontal drainage ditch, and a cohesive soil cushion layer. The foundation pit has slopes on both sides, the cohesive soil cushion layer is located at the bottom of the foundation pit, the horizontal drainage ditch is located on the cohesive soil cushion layer, and it also includes a permeable blind pipe with a curved mesh and a fill layer for filling the gap between the slope and the sidewall of the horizontal drainage ditch.

[0004] This frost-heave-resistant drainage structure for high-altitude cold regions places the horizontal drainage channel within a sloping foundation pit. A layer of cohesive soil is pre-placed at the bottom of the pit to prevent water seepage. A permeable blind pipe with a corrugated mesh is placed at the bottom between the slope and the sidewall of the horizontal drainage channel. Several drainage holes are opened at the top of the permeable blind pipe, allowing seepage water to enter through these holes. The bottom of the permeable blind pipe is sealed, and a loess layer lies beneath it, preventing further downward seepage and allowing water to flow directly out through the permeable blind pipe. This effectively prevents frost heave damage to the drainage channel and the soil layers on both sides, making it particularly suitable for drainage channels in high-altitude cold regions.

[0005] As can be seen from the solutions disclosed in the existing patent documents, the drainage ditch lacks a heating device. In high-altitude permafrost areas, the water flow inside the drainage ditch is prone to frost heave damage. In addition, the drainage ditch lacks a retractable structure, which can easily cause structural cracks and damage due to expansion and contraction, leading to drainage seepage and frost heave. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this invention is to provide a frost-resistant expansion joint device for drainage ditches in high-altitude permafrost regions to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a frost-resistant expansion and contraction device for drainage ditches in high-altitude permafrost regions, comprising a drainage ditch body, a protective mechanism provided on the upper end face of the drainage ditch body, the protective mechanism being used to prevent pedestrians and vehicles from falling into the drainage ditch body, the protective mechanism including expansion bolts installed inside the drainage ditch body, a pad being sleeved on the outside of the expansion bolt, a guardrail being connected to one end of the pad, and a support rod being provided inside the guardrail;

[0008] The drainage ditch is equipped with an anti-freezing mechanism inside. The anti-freezing mechanism is used for solar energy conversion and heating. The anti-freezing mechanism includes heat-gathering tubes that are all sleeved inside the drainage ditch. Heat dissipation fins are provided on the outer side of the lower end of each heat-gathering tube.

[0009] The drainage ditch is equipped with a telescopic mechanism inside. The telescopic mechanism is used to prevent water from seeping down and freezing due to the expansion and contraction of the drainage ditch. The telescopic mechanism includes expansion tubes inserted into the drainage ditch. The expansion tubes are threaded with screws inside. A support plate is sleeved on the outside of the screws. A waterstop is connected to the lower end of the support plate.

[0010] Preferably, the upper surface of the drainage ditch is closely attached to a protective railing, and the interior of the protective railing is covered by a heat-concentrating pipe.

[0011] Preferably, the upper surface of each drainage ditch body is tightly attached to a pad, the upper surface of each drainage ditch body is tightly attached to a support rod, and the interior of each drainage ditch body is provided with heat dissipation fins.

[0012] Preferably, the expansion tube is provided with an anti-slip plastic sheet on its outer side, and the drainage ditch body is provided with a pre-set installation hole for the expansion tube.

[0013] Preferably, the drainage ditch body is fitted with internal screws, and the inner side of the drainage ditch body is tightly attached to the support plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This anti-freezing expansion device for highway drainage ditches in high-altitude permafrost regions uses solar energy to heat the inside of the drainage ditch by burying heat-collecting pipes and heat sinks inside the drainage ditch, effectively preventing the drainage ditch and highway from freezing and expanding.

[0016] By inserting expansion pipes into the drainage ditch and connecting them with screw threads, it is easy to fix and install support plates and waterstops. The waterstops are designed to have good ductility and waterproofness, which can effectively prevent water from seeping down and freezing due to the expansion and settlement of the drainage ditch. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is an enlarged view of the expansion screw of this utility model;

[0019] Figure 3 This is an enlarged perspective view of the heat sink of this utility model;

[0020] Figure 4 This is an enlarged view of the screw of this utility model.

[0021] In the diagram: 1. Drainage ditch body, 11. Expansion bolt, 12. Pad, 13. Guardrail, 14. Support rod, 15. Heat-collecting pipe, 16. Heat sink, 2. Expansion pipe, 21. Screw, 22. Support plate, 23. Waterstop. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 The diagram shows a frost-resistant expansion and contraction device for road drainage ditches in high-altitude permafrost areas, including a drainage ditch body 1. A protective mechanism is provided on the upper end face of the drainage ditch body 1 to prevent pedestrians and vehicles from falling into the drainage ditch body 1. The protective mechanism includes expansion bolts 11 installed inside the drainage ditch body 1, pads 12 sleeved on the outside of the expansion bolts 11, one end of the pads 12 connected to a guardrail 13, and support rods 14 provided inside the guardrail 13.

[0024] The drainage ditch body 1 is equipped with an anti-freezing and anti-swelling mechanism. The anti-freezing and anti-swelling mechanism is used for solar energy conversion and heating. The anti-freezing and anti-swelling mechanism includes heat-gathering tubes 15 that are all sleeved inside the drainage ditch body 1. Heat dissipation fins 16 are provided on the outer side of the lower end of each heat-gathering tube 15.

[0025] Structural composition: The solar collector tube 15 consists of a glass shell, an absorption layer, a heat transfer tube, and an insulation layer.

[0026] Absorbing layer: Located inside the glass casing, the absorbing layer is typically made of a black coating or light-absorbing material. Its function is to absorb solar radiation and convert it into heat.

[0027] Heat transfer tubes: Located below the absorber layer, heat transfer tubes are typically made of metal and have excellent thermal conductivity. When the absorber layer absorbs solar radiation and generates heat, the heat transfer tubes quickly conduct the heat to other parts of the collector tube.

[0028] Phase change medium: A phase change medium, typically a low-boiling-point liquid such as ethanol or water, is filled in the heat transfer tube. When the temperature in the heat transfer tube rises, the phase change medium vaporizes (changes from a liquid to a gaseous state), releasing a large amount of heat carried by the potential vapor.

[0029] Heat conduction and transfer: Heat is transferred through the heat transfer pipes to other parts of the collector pipe, and then conducted through the heat conduction pipes to the end of the collector pipe. The heat conduction pipes are usually made of metal and are capable of conducting heat efficiently.

[0030] Insulation of the tube shell: In order to reduce heat loss, solar collector tubes are usually wrapped in an insulation layer to prevent heat from escaping outward.

[0031] The drainage ditch body 1 is equipped with an internal telescopic mechanism to prevent water from seeping down and freezing due to expansion and deformation of the drainage ditch body 1. The telescopic mechanism includes expansion tubes 2 inserted inside the drainage ditch body 1, screws 21 connected to the internal threads of the expansion tubes 2, support plates 22 sleeved on the outside of the screws 21, and waterstops 23 connected to the lower end of the support plates 22.

[0032] Please see Figure 1 and Figure 3 The upper end face of the drainage ditch body 1 is closely attached to the guardrail 13, and the inside of the guardrail 13 shields the heat-gathering pipe 15.

[0033] With this setup, by burying heat-collecting pipes 15 and heat sinks 16 inside the drainage ditch body 1, solar energy can be used to heat the inside of the drainage ditch body 1, effectively preventing the drainage ditch body 1 and the road from freezing and swelling.

[0034] Please see Figure 1-3 The upper end face of the drainage ditch body 1 is in close contact with the pad 12, the upper end face of the drainage ditch body 1 is in close contact with the support rod 14, and the interior of the drainage ditch body 1 is provided with heat sink 16.

[0035] With this setup, by using expansion bolts 11 to fix the mounting pads 12 to the upper end of the drainage ditch body 1, the guardrail 13 and support rod 14 can be fixedly installed, which can effectively protect the heat-concentrating pipe 15 and prevent pedestrians and vehicles from falling into the drainage ditch body 1 and causing safety accidents.

[0036] Please see Figure 1 and Figure 4 An anti-slip plastic sheet is provided on the outside of the expansion pipe 2, and an installation hole for the expansion pipe 2 is pre-set inside the drainage ditch body 1.

[0037] With this setup, by inserting the expansion pipe 2 into the drainage ditch body 1 and using screws 21 to thread the expansion pipe 2, it is convenient to fix and install the support plate 22 and the waterstop 23. The design of the waterstop 23 can have good ductility and waterproofness, thereby effectively preventing the drainage ditch body 1 from shrinking and settling, which would cause water to seep down and freeze.

[0038] Please see Figure 1 and Figure 4 The drainage ditch body 1 is fitted with internal screws 21, and the inner side of the drainage ditch body 1 is tightly attached to the support plate 22.

[0039] With this setup, when screw 21 is tightened, it pushes expansion tube 2 outward, generating greater pressure between it and the hole wall, increasing friction, and thus achieving a fixing effect.

[0040] The working principle of this embodiment is as follows: The anti-freezing expansion device for highway drainage ditches in high-altitude permafrost areas can heat the inside of the drainage ditch body 1 by burying heat-collecting pipes 15 and heat sinks 16 inside the drainage ditch body 1 using solar energy, effectively preventing the drainage ditch body 1 and the highway from freezing and expanding.

[0041] By using expansion bolts 11 to fix the mounting pads 12 to the upper end of the drainage ditch body 1, the guardrail 13 and support rod 14 can be fixedly installed, which can effectively protect the heat-concentrating pipe 15 and prevent pedestrians and vehicles from falling into the drainage ditch body 1 and causing safety accidents.

[0042] It is worth noting that the design of the heat sink 16 can increase the rapid heat conduction to the drainage ditch 1.

[0043] By inserting the expansion pipe 2 into the drainage ditch body 1 and using screws 21 to thread the expansion pipe 2, it is convenient to fix and install the support plate 22 and the waterstop 23. The design of the waterstop 23 can have good ductility and waterproofness, thereby effectively preventing the drainage ditch body 1 from shrinking and settling, causing water to seep down and freeze.

[0044] When screw 21 is tightened, it pushes expansion tube 2 outward, generating greater pressure between it and the hole wall, increasing friction, and thus achieving a fixing effect.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A frost heave expansion joint device for drainage ditches in high-altitude permafrost regions, characterized in that: The system includes a drainage ditch body (1), and a protective mechanism is provided on the upper surface of the drainage ditch body (1). The protective mechanism is used to prevent pedestrians and vehicles from falling into the drainage ditch body (1). The protective mechanism includes expansion bolts (11) installed inside the drainage ditch body (1). A pad (12) is sleeved on the outside of the expansion bolt (11). One end of the pad (12) is connected to a guardrail (13). A support rod (14) is provided inside the guardrail (13). The drainage ditch body (1) is provided with an anti-freezing and swelling mechanism. The anti-freezing and swelling mechanism is used for solar energy conversion and heat heating. The anti-freezing and swelling mechanism includes heat-gathering tubes (15) that are all sleeved inside the drainage ditch body (1). Heat-gathering tubes (15) are provided with heat sinks (16) on the outer side of their lower ends. The drainage ditch body (1) is provided with a telescopic mechanism inside. The telescopic mechanism is used to prevent the drainage ditch body (1) from expanding and deforming, causing water to seep down and freeze. The telescopic mechanism includes expansion tubes (2) inserted inside the drainage ditch body (1). The expansion tubes (2) are threaded with screws (21) inside. A support plate (22) is sleeved on the outside of the screws (21). A waterstop (23) is connected to the lower end of the support plate (22).

2. The anti-frost heave expansion joint device for highway drainage ditches in high-altitude permafrost regions according to claim 1, characterized in that: The upper surface of the drainage ditch (1) is closely attached to the guardrail (13), and the inside of the guardrail (13) is covered by a heat-collecting pipe (15).

3. The anti-frost heave expansion joint device for highway drainage ditches in high-altitude permafrost regions according to claim 1, characterized in that: The upper surface of the drainage ditch (1) is tightly attached to a pad (12), the upper surface of the drainage ditch (1) is tightly attached to a support rod (14), and the interior of the drainage ditch (1) is provided with a heat sink (16).

4. The anti-frost heave expansion joint device for highway drainage ditches in high-altitude permafrost regions according to claim 1, characterized in that: The expansion tube (2) is provided with an anti-slip plastic sheet on its outer side, and the drainage ditch body (1) is provided with an installation hole for the expansion tube (2).

5. The anti-frost heave expansion joint device for highway drainage ditches in high-altitude permafrost regions according to claim 1, characterized in that: The drainage ditch body (1) is fitted with internal screws (21), and the inner side of the drainage ditch body (1) is tightly attached to the support plate (22).

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