Air curtain type tunnel portal water intercepting device

Abstract

The invention discloses an air curtain type tunnel portal water interception device which is arranged at a tunnel portal or a junction of an intersection open section and a hidden section of an urban underpass road, the water interception device comprises a plurality of vertical ventilation pipelines arranged on a central anti-collision wall, and the bottom of each vertical ventilation pipeline is connected with an air blower. The air blower is fixedly connected with the central anti-collision wall; the adjacent vertical ventilation pipelines are communicated through a plurality of transverse ventilation pipelines, air outlets are formed in the two sides of each transverse ventilation pipeline in the horizontal direction respectively, and a rotatable movable cover plate is arranged at the position, corresponding to the air outlets, of each transverse ventilation pipeline. According to the method, a transverse intercepting ditch does not need to be arranged at the tunnel portal and the junction of the open section and the hidden section of the intersection of the urban underpass, regular dredging and maintenance are not needed, the maintenance cost is reduced, the economic benefit is improved, and the driving safety and smoothness are greatly guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of water cut-off devices, in particular to an air curtain type tunnel opening water cut-off device. Background Art

[0002] At present, the interception and drainage measures at the tunnel entrance are usually to set up intercepting ditches at the tunnel entrance and the intersection of the urban underpass road (the interface between the open section and the buried section). The intercepting ditch is usually set horizontally to intercept the rainwater gathered on the road surface and introduce it into the longitudinal ditches on both sides to prevent rainwater from entering the tunnel and affecting normal traffic.

[0003] The intercepting ditch is generally composed of a groove and a cover plate. Since the intercepted rainwater carries various sediments, the inside of the intercepting ditch needs to be dredged regularly. In addition, due to the long-term impact and crushing of automobile loads, the intercepting ditch is easily damaged and needs regular maintenance, which has a great impact on the convenience of subsequent maintenance as well as the safety and smoothness of driving.

[0004] Therefore, how to design a water interception device to replace the transverse water interception ditch at the tunnel entrance or the intersection of the urban underpass to achieve the convenience of later maintenance and improve driving safety has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the present invention provides an air curtain type tunnel entrance water intercepting device, the purpose of which is to replace the transverse intercepting ditch and improve the convenience of subsequent dredging and maintenance as well as the safety and smoothness of driving.

[0006] In order to achieve the above technical objectives, the present invention provides an air curtain type tunnel entrance water cut-off device, which is arranged at the interface between the open section and the buried section of the tunnel entrance or the intersection of the urban underpass road, and the water cut-off device includes a plurality of vertical ventilation ducts arranged on the central anti-collision wall, and the bottom of each of the vertical ventilation ducts is respectively connected to a blower, and the blower is fixedly connected to the central anti-collision wall;

[0007] The adjacent vertical ventilation ducts are connected through a plurality of transverse ventilation ducts, wherein the plurality of transverse ventilation ducts at the bottom are respectively provided with air outlets inclined toward the road surface on both sides in the horizontal direction; the remaining plurality of transverse ventilation ducts are respectively provided with horizontal air outlets on both sides in the horizontal direction;

[0008] Each of the transverse ventilation ducts is provided with a rotatable movable cover plate at a position corresponding to the air outlet, wherein a plurality of the transverse ventilation ducts at the bottom are respectively provided with heating pipes;

[0009] When the transverse ventilation duct is blowing air, the movable cover can be pushed open by the air out of the air outlet, and when the transverse ventilation duct is not blowing air, the movable cover can close by its own weight to seal the air outlet;

[0010] The water cut-off device also includes a control box for controlling the start and stop of the blower and the heating tube.

[0011] Preferably, the control box is arranged on the central anti-collision wall, and the control box includes a central control system, a power supply system, a rain and snow sensor, and a temperature sensor;

[0012] The central control system is electrically connected to the power supply system, the rain and snow sensor, the temperature sensor, the blower and the heating pipe respectively.

[0013] Preferably, the top end of the vertical ventilation duct is closed, and the bottom end is fixedly connected to the central anti-collision wall through a flange base.

[0014] Preferably, an interface is provided at the connection between the vertical ventilation duct and the transverse ventilation duct, a joint is provided at the end of the transverse ventilation duct, and the vertical ventilation duct and the transverse ventilation duct are connected through the cooperation of the interface and the joint.

[0015] Beneficial effects of the present invention:

[0016] Due to the above structural design, the present invention does not need to set up transverse intercepting ditches at the interfaces between the open section and the buried section of the tunnel entrance and the intersection of the urban underpass road, and does not need regular dredging and maintenance, which reduces maintenance costs, improves economic benefits, and greatly ensures the safety and smoothness of driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an exploded three-dimensional structure of a specific embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the planar structure of a specific embodiment of the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of a top view structure;

[0020] Figure 4 for Figure 2 Schematic diagram of vertical section structure;

[0021] Figure 5 It is a schematic diagram of the structure of the air outlet portion of the transverse ventilation duct in the present invention;

[0022] Figure 6 It is a system schematic diagram of the control box in the present invention;

[0023] Figure 7 It is a schematic diagram of the arrangement of the present invention when in use;

[0024] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure.

[0025] In the figure: 1 central anti-collision wall, 2 vertical ventilation ducts, 3 blowers, 4 horizontal ventilation ducts, 5 air outlets, 6 movable covers, 7 heating pipes, 8 control boxes, 81 central control systems, 82 power supply systems, 83 rain and snow sensors, 84 temperature sensors, 9 longitudinal drainage ditches. DETAILED DESCRIPTION

[0026] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0027] Example:

[0028] like Figure 1-Figure 8 As shown, a specific embodiment of the air curtain type tunnel entrance water cut-off device of the present invention is arranged at the interface between the open section and the buried section of the tunnel entrance or the intersection of the urban underpass road. The water cut-off device includes a plurality of vertical ventilation ducts 2 arranged on the central crash barrier 1, and a blower 3 is respectively connected to the bottom of each vertical ventilation duct 2, and the blower 3 is fixedly connected to the central crash barrier 1.

[0029] The adjacent vertical ventilation ducts 2 are connected through a plurality of transverse ventilation ducts 4, wherein the plurality of transverse ventilation ducts 4 at the bottom are respectively provided with air outlets 5 inclined toward the road surface on both sides in the horizontal direction; the remaining plurality of transverse ventilation ducts 4 are respectively provided with horizontal air outlets 5 on both sides in the horizontal direction; each of the transverse ventilation ducts 4 is provided with a rotatable movable cover plate 6 at a position corresponding to the air outlet 5, wherein the plurality of transverse ventilation ducts 4 at the bottom are respectively provided with heating pipes 7;

[0030] When the transverse ventilation duct 4 is discharging air, the movable cover 6 can be pushed open by the air outlet 5. When the transverse ventilation duct 4 is not discharging air, the movable cover 6 can close the air outlet 5 by relying on its own weight. The rotatable movable cover 6 can prevent dust and other debris from entering the transverse ventilation duct 4, which not only ensures the normal operation of the water cut-off device, but also avoids pollution to the environment when the water cut-off device is operating and blowing air, thereby improving the durability of the water cut-off device.

[0031] The water cut-off device also includes a control box 8 for controlling the start and stop of the blower 3 and the heating tube 7 .

[0032] The main innovation of the present invention is that there is no need to set up a transverse intercepting ditch at the interface between the open section and the buried section of the tunnel entrance or the intersection of the urban underpass. The wind blown horizontally through the transverse ventilation duct forms an air curtain wall to blow the falling rain and snow to the longitudinal drainage ditches on both sides of the road, thereby achieving the function of intercepting and draining water.

[0033] Specifically, Figure 2 and Figure 6 As shown, the control box 8 is arranged on the central crash barrier 1, and the control box 8 includes a central control system 81, a power supply system 82, a rain and snow sensor 83 and a temperature sensor 84; the central control system 81 is electrically connected to the power supply system 82, the rain and snow sensor 83, the temperature sensor 84, the blower 3 and the heating pipe 7 respectively.

[0034] When the rain and snow sensor 83 detects rain or snow, the central control system 81 controls the power supply system 82 to provide power to the blower 3, and automatically controls the output power of the blower 3 according to the amount of rainfall, thereby controlling the wind speed at the air outlet 5; at the same time, when the temperature sensor 84 detects that the ambient temperature is low and easy to freeze, the heating tube 7 is turned on for heating.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, three vertical ventilation ducts 2 are arranged evenly at a spacing of 400 cm, three transverse ventilation ducts 4 are arranged between adjacent vertical ventilation ducts 2, the transverse ventilation duct 4 of the top layer is arranged at the top of the vertical ventilation duct 2, the transverse ventilation duct 4 of the middle layer is arranged 45 cm below the transverse ventilation duct 4 of the top layer, and the transverse ventilation duct 4 of the bottom layer is arranged 30 cm from the bottom of the vertical ventilation duct 2, air outlets 5 inclined toward the road surface are arranged on both sides of the horizontal direction of the transverse ventilation duct 4 of the bottom layer, and horizontal air outlets 5 are arranged on both sides of the horizontal direction of the transverse ventilation duct 4 of the top and middle layers.

[0036] like Figure 7 and Figure 8 As shown, the wind blown horizontally through the two upper transverse ventilation ducts 4 forms an air curtain wall, blowing the falling rain and snow to the longitudinal drainage ditches 9 on both sides of the road. A small amount of rainwater flowing from the open section of the intersection into the buried section is blown by the transverse ventilation ducts 4 on the bottom layer, accelerating the rainwater on the road surface to flow into the longitudinal drainage ditches 9 on both sides along the transverse slope of the road surface, thereby achieving the function of intercepting and draining water.

[0037] Furthermore, in order to ensure the stability of the water cut-off device, the top end of the vertical ventilation duct 2 is closed, and the bottom end is fixedly connected to the central anti-collision wall 1 through a flange base.

[0038] An interface is provided at the connection between the vertical ventilation duct 2 and the horizontal ventilation duct 4, and a joint is provided at the end of the horizontal ventilation duct 4. The vertical ventilation duct 2 and the horizontal ventilation duct 4 are connected through the cooperation of the interface and the joint. The vertical ventilation duct 2 and the horizontal ventilation duct 4 adopt a modular assembly design, which is convenient for installation and maintenance.

[0039] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. The air curtain tunnel entrance water cut-off device is installed at the tunnel entrance or at the interface between the open section and the buried section of the urban underpass, and is characterized by: The water interception device includes a plurality of vertical ventilation ducts arranged on the central anti-collision wall, and a blower is connected to the bottom of each of the vertical ventilation ducts, and the blower is fixedly connected to the central anti-collision wall; The adjacent vertical ventilation ducts are connected through a plurality of transverse ventilation ducts, wherein the plurality of transverse ventilation ducts at the bottom are respectively provided with air outlets inclined toward the road surface on both sides in the horizontal direction; the remaining plurality of transverse ventilation ducts are respectively provided with horizontal air outlets on both sides in the horizontal direction; Each of the transverse ventilation ducts is provided with a rotatable movable cover plate at a position corresponding to the air outlet, wherein a plurality of the transverse ventilation ducts at the bottom are respectively provided with heating pipes; When the transverse ventilation duct is blowing air, the movable cover plate can be pushed open by the air out of the air outlet, and when the transverse ventilation duct is not blowing air, the movable cover plate can close the air outlet by its own weight; The water cut-off device also includes a control box for controlling the start and stop of the blower and the heating tube.

2. The air curtain type tunnel opening water cut-off device according to claim 1, characterized in that: The control box is arranged on the central anti-collision wall, and the control box includes a central control system, a power supply system, a rain and snow sensor, and a temperature sensor; The central control system is electrically connected to the power supply system, the rain and snow sensor, the temperature sensor, the blower and the heating pipe respectively.

3. The air curtain type tunnel opening water cut-off device according to claim 1 or 2, characterized in that: The top end of the vertical ventilation duct is closed, and the bottom end is fixedly connected to the central anti-collision wall through a flange base.

4. The air curtain type tunnel opening water cut-off device according to claim 3, characterized in that: An interface is provided at the connection between the vertical ventilation duct and the transverse ventilation duct, a joint is provided at the end of the transverse ventilation duct, and the vertical ventilation duct and the transverse ventilation duct are connected through the cooperation of the interface and the joint.

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