One-way drainage device in side slope

Abstract

The utility model discloses a side slope interior one-way drainage device which comprises a drainage pipe, the drainage pipe is installed on a side slope concrete protection plate, one end of the drainage pipe is located in side slope soil on one side of the side slope concrete protection plate, and the other end of the drainage pipe is located outside the side slope concrete protection plate. A filtering part is installed at the end, located in the side slope soil, of the drainage pipe, and a one-way drainage valve is installed at the end, exposed out of the side slope concrete protection plate, of the drainage pipe. According to the device, a drainage one-way passage is formed on the slope concrete guard plate through the drainage pipe, seepage water in slope soil is drained from the passage, the water pressure below the guard plate is effectively reduced, and deformation or damage of the guard plate caused by too large water pressure is avoided; through the one-way drainage valve and the filtering part, the situation that the external water level drops frequently and suddenly, the drainage pipe is blocked, and the device loses the drainage effect can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of slope drainage, in particular to a one-way drainage device inside a slope. Background Art

[0002] Most pumped storage power stations are daily regulation power stations. According to their operation mode, the water level in the reservoir area needs to fluctuate frequently between the normal water storage level and the dead water level. Reinforced concrete guard plates are often used between the dead water level and the normal water storage level, and ordinary drainage pipes are set up. The purpose is to discharge the seepage water inside the slope in time when the water level drops frequently, effectively reduce the water pressure under the guard plate, and avoid deformation or damage of the guard plate caused by excessive water pressure. However, ordinary drainage pipes connect the inside of the slope with the reservoir at all times. Frequent sudden drops in water levels lead to softening of the internal soil and migration and loss of particles, which can easily cause blockage of the filter layer in the ordinary drainage pipe, making the drainage ineffective, and further causing damage to the slope concrete guard plate and local or overall sliding instability of the high slope. If the instability after water storage may cause surges in the reservoir area, if it is near the dam, it will cause the risk of breaking waves and overturning the dam or dam collapse, seriously threatening the structural safety of the buildings in the hub area. Utility Model Content

[0003] In order to solve the problem that when conventional slope drainage uses common drainage pipes for drainage, the common drainage pipes are easily blocked due to frequent sudden drops in water levels, resulting in drainage failure, the utility model provides a one-way drainage device inside the slope.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model discloses a one-way drainage device inside a slope, comprising a drainage pipe, wherein the drainage pipe is installed on a slope concrete guard plate, and one end of the drainage pipe is located in the slope soil on one side of the slope concrete guard plate, and the other end of the drainage pipe is located outside the slope concrete guard plate;

[0006] A filter is installed on the end of the drainage pipe located in the soil of the slope, and a one-way drainage valve is installed on the end of the drainage pipe exposed outside the concrete guard plate of the slope.

[0007] Preferably, the one-way drain valve comprises a valve body, one end port of the valve body is connected to the drain pipe, the other end port of the valve body is rotatably connected to a flap, a reset portion is arranged in the valve body, and the reset portion is connected to the flap.

[0008] Preferably, the reset part includes a sliding block, a sliding groove is provided in the valve body, the sliding block is slidably installed in the sliding groove, one end of a steel wire rope is connected to the sliding block, a connecting platform is provided near the center position of the valve body, a mounting hole is provided on the connecting platform, the other end of the steel wire rope passes through the mounting hole and is fixed to the flap, and a spring is provided on the steel wire rope between the connecting platform and the sliding block.

[0009] Preferably, a water flow acceleration part is arranged in the valve body, and the water flow acceleration part comprises a connecting shaft, the connecting shaft is rotatably mounted on the valve body, an acceleration wheel is rotatably connected to the end of the connecting shaft located in the valve body, and an auxiliary wheel is installed on the end of the connecting shaft located outside the valve body;

[0010] A one-way limiting portion is arranged on the connecting shaft between the inner wall of the valve body and the acceleration wheel.

[0011] Preferably, the one-way limiting portion includes a ratchet and a limiting plate, the ratchet is mounted on the connecting shaft, one end of the limiting plate is rotatably connected to the inner wall of the valve body, and the other end of the limiting plate is clamped in a ratchet groove on the ratchet.

[0012] Preferably, a weight reduction chamber is provided on the valve body.

[0013] Preferably, the filter portion comprises a geotextile and an anti-filter material, the anti-filter material wraps the geotextile, the geotextile is tied to the end of the drainage pipe, and the anti-filter material is located at the port of the drainage pipe.

[0014] Preferably, the length and width of the geotextile are both 30-50 cm.

[0015] Preferably, the drain pipe is made of polyethylene.

[0016] Preferably, the diameter of the drain pipe is 80-120 mm.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] The utility model discloses a one-way drainage device for the inside of a slope, in which a one-way drainage passage is formed on a concrete guard plate of the slope through a drainage pipe, and the seepage water in the soil of the slope is discharged from the passage, so as to effectively reduce the water pressure under the guard plate and avoid deformation or damage of the guard plate caused by excessive water pressure; and in the process of discharging the seepage water, the seepage water is filtered through a filtering part in the device to avoid a large amount of mud and sand carried by the seepage water entering the drainage pipe, and a one-way drainage valve is arranged on the outer end of the drainage pipe, so that the one-way drainage valve and the filtering part can avoid frequent sudden drops in the external water level, which would cause blockage of the drainage pipe and make the device lose its drainage function.

[0019] Furthermore, a flap is rotatably connected to the right end of the one-way drain valve in the device, and the flap and the valve body are connected by a reset part. During the drainage process, the flap is automatically opened by the infiltrated water entering the valve body to drain the water. If no infiltrated water continues to be discharged, the flap returns to its original position under the action of the reset part, thereby preventing external water from entering the valve body from the flap end, affecting the practicality of the device, and improving the one-way drainage performance of the device.

[0020] Furthermore, in the reset part of the device, the sliding block is pushed to move by the spring, thereby loosening the wire rope, and the wire rope pulls the flap to reset. The reset structure is simple and can achieve automatic reset after drainage is completed.

[0021] Furthermore, in this device, a water flow acceleration part is arranged in the valve body, and the auxiliary wheel is acted on by external wind energy and water energy to make it rotate, and then the acceleration wheel is driven to rotate through the connecting shaft, so as to accelerate the infiltrated water entering the valve body, increase the flow speed of the infiltrated water in the valve body, increase the speed of opening the one-way drain valve, and improve the drainage efficiency.

[0022] Furthermore, the limiting part in the device cooperates with the ratchet and the limiting plate so that the connecting shaft can only rotate in one direction, and thus the acceleration wheel can only rotate in the opposite direction of the flow of the permeated water, thereby accelerating the permeated water and increasing the flow rate of the permeated water in the one-way drain valve.

[0023] Furthermore, in the device, a weight-reducing cavity is provided on the valve body, and the weight of the valve body is reduced by the weight-reducing cavity, thereby improving the stability of the one-way drain valve.

[0024] Furthermore, the filter part of the device includes geotextile and anti-filter material, through which the infiltrated water is filtered to prevent the infiltrated water from carrying a large amount of sediment during the discharge process and causing blockage of the device. At the same time, the migration of fine particles in the slope soil is prevented to cause settlement and deformation of the anti-seepage body and affect the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the installation structure of a one-way drainage device inside a slope provided by the utility model;

[0026] Figure 2 A schematic diagram of the front cross-sectional structure of a one-way drainage valve in a one-way drainage device inside a slope provided by the utility model;

[0027] Figure 3 The utility model is a schematic diagram of a top view of the cross-sectional structure of a one-way drainage valve in a one-way drainage device inside a slope provided by the utility model.

[0028] In the attached drawings: 1. Drain pipe; 2. Filter part; 3. One-way drain valve; 30. Valve body; 31. Weight reduction chamber; 32. Flap; 33. Reset part; 330. Wire rope; 331. Sliding block; 332. Spring; 34. Water flow acceleration part; 340. Connecting shaft; 341. Acceleration wheel; 342. Ratchet; 343. Limiting piece; 344. Auxiliary wheel; 4. Slope concrete guard plate. DETAILED DESCRIPTION

[0029] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1 The utility model discloses a one-way drainage device inside a slope. The device is arranged in a plum blossom pattern on the slope and comprises a drainage pipe 1. The drainage pipe 1 is installed on a slope concrete guard plate 4 and is inclined downward by 10° and penetrates 10 cm into the soft foundation. One end of the drainage pipe 1 is located in the slope soil on one side of the slope concrete guard plate 4, and the other end is exposed outside the slope concrete guard plate 4.

[0036] A filter part 2 is installed on the end of the drain pipe 1 located in the slope soil, and a one-way drain valve 3 is installed on the end of the drain pipe 1 exposed outside the slope concrete guard plate 4. In this device, water in the slope soil is filtered through the filter part 2 on the drain pipe 1, and then enters the one-way drain valve 3 through the drain pipe 1, and is discharged through the one-way drain valve 3, effectively reducing the water pressure under the slope concrete guard plate 4 to avoid deformation or damage of the slope concrete guard plate 4 caused by excessive water pressure. During the use of the device, the water level frequently drops suddenly, and the external water cannot enter the one-way drain valve 3, thereby preventing the external water from backflowing and causing the drainage device to fail.

[0037] See also Figure 2 and Figure 3 The one-way drain valve 3 includes a valve body 30, a left end port of the valve body 30 is connected to the drain pipe 1, and a flap 32 is rotatably connected to the right end port of the valve body 30. A reset portion 33 is provided in the valve body 30, and the reset portion 33 is connected to the flap 32. When draining water, after the infiltrated water enters the valve body 30, the flow of the infiltrated water pushes the flap 32 to rotate, opening the one-way drain valve 3 to discharge the infiltrated water. If no infiltrated water continues to be discharged, the flap 32 returns to its original position under the action of the reset portion 33, preventing external water from entering the valve body 30 from the end of the flap 32.

[0038] See also Figure 2 and Figure 3The reset portion 33 includes a sliding block 331. A sliding groove is provided on the inner wall of the valve body 30 near its right end end along the axial direction of the valve body 30. The sliding block 331 is slidably installed in the sliding groove. One end of the wire rope 330 is connected to the left end surface of the sliding block 331. A connecting platform is provided on the inner wall of the valve body 30 near its center position. A mounting hole is provided on the connecting platform. The other end of the wire rope 330 passes through the mounting hole and is fixed to the inner end surface of the flap 32 relative to the valve body 30. A spring 332 is provided on the wire rope 330 between the connecting platform and the sliding block 331. When the infiltrated water is discharged, the sliding block 331 moves along the sliding groove under the action of the spring 332, pulling one end of the wire rope 330 toward the flap 32, and then the other end of the wire rope 330 pulls the flap 32, so that the flap 32 rotates and restores its initial position, thereby preventing external water from entering the valve body 30 when the device is not draining water, thereby forming a backflow phenomenon.

[0039] See also Figure 3 A water flow accelerating part 34 is arranged in the valve body 30, and the water flow accelerating part 34 includes a connecting shaft 340, which is rotatably mounted on the valve body 30 near the position where it is connected to the drain pipe 1 along the radial direction of the valve body 30, and an accelerating wheel 341 is rotatably connected to the end of the connecting shaft 340 located inside the valve body 30, and an auxiliary wheel 344 is installed on the end of the connecting shaft 340 located outside the valve body 30, and the auxiliary wheel 344 rotates under the action of an external force, such as external water energy or wind energy, thereby driving The connecting shaft 340 rotates, so that the connecting shaft 340 drives the acceleration wheel 341 to rotate, thereby accelerating the infiltrated water entering the valve body 30, so that the infiltrated water quickly gathers at the right end of the valve body 30, and quickly pushes the flap 32 to open the one-way drain valve 3, discharge the infiltrated water in the valve body 30, and improve the drainage efficiency; in this device, the connecting shaft 340 and the auxiliary wheel 344 and the acceleration wheel 341 are limited by a flat key, so that the connecting shaft 340 and the auxiliary wheel 344 and the acceleration wheel 341 rotate synchronously.

[0040] See also Figure 3 A one-way limiting portion is provided on the connecting shaft 340 between the inner wall of the valve body 30 and the acceleration wheel 341. The one-way limiting portion includes a ratchet 342 and a limiting piece 343. The ratchet 342 is installed on the connecting shaft 340 between the inner wall of the valve body 30 and the acceleration wheel 341, and is connected to the connecting shaft 340 by a flat key so that it rotates synchronously with the connecting shaft 340. One end of the limiting piece 343 is rotatably connected to the inner wall of the valve body 30, and the other end of the limiting piece 343 is clamped in one of the ratchet grooves on the ratchet 342, so that the ratchet 342 can only rotate in one direction, thereby causing the acceleration wheel 341 to rotate in one direction, accelerating the infiltrated water entering the valve body 30, increasing the flow rate of the infiltrated water in the valve body 30, and thereby increasing the opening speed of the one-way drain valve 3, so that the infiltrated water is discharged quickly.

[0041] See also Figure 2 A weight-reducing chamber 31 is provided on the valve body 30 , and the weight-reducing chamber 31 is used to reduce the weight of the valve body 30 , thereby improving the stability of the one-way drain valve 3 .

[0042] See also Figure 1 The filter part 2 includes a geotextile and an anti-filter material, the anti-filter material wraps the geotextile, the geotextile is tied to the end of the drain pipe 1, and the anti-filter material is located at the end of the drain pipe 1. The infiltration water to be discharged from the slope geological layer is filtered by the geotextile and the anti-filter material to prevent the infiltration water from carrying a large amount of sediment in the discharge process to block the device and affect the use of the device.

[0043] Preferably, the length and width of the geotextile are both 30-50 cm, the particle size D of the filter material is 5-20 mm, and the filter material is arranged at the inner fracture of the drainage pipe 1 into a block with a thickness of 30 cm and a bottom area of ​​50 cm×50 cm. In this embodiment, the length and width of the geotextile are preferably 30 cm.

[0044] Furthermore, the drain pipe 1 is made of polyethylene, and the diameter of the drain pipe 1 is 80-120 mm. In this embodiment, the diameter of the drain pipe 1 is preferably 100 mm.

[0045] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0046] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should take the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the utility model, and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.

Claims

1. A one-way drainage device inside a slope, characterized in that: It comprises a drainage pipe (1), the drainage pipe (1) being installed on a slope concrete guard plate (4), and one end of the drainage pipe (1) being located in the slope soil on one side of the slope concrete guard plate (4), and the other end of the drainage pipe (1) being located outside the slope concrete guard plate (4); A filter unit (2) is installed on the end of the drainage pipe (1) located in the slope soil, and a one-way drainage valve (3) is installed on the end of the drainage pipe (1) exposed outside the slope concrete guard plate (4).

2. A one-way drainage device inside a slope according to claim 1, characterized in that: The one-way drain valve (3) comprises a valve body (30), one end of the valve body (30) being connected to the drain pipe (1), the other end of the valve body (30) being rotatably connected to a flap (32), a reset portion (33) being provided in the valve body (30), the reset portion (33) being connected to the flap (32).

3. A one-way drainage device inside a slope according to claim 2, characterized in that: The reset portion (33) comprises a sliding block (331), a sliding groove is provided in the valve body (30), the sliding block (331) is slidably mounted in the sliding groove, one end of a steel wire rope (330) is connected to the sliding block (331), a connecting platform is provided near the center of the valve body (30), a mounting hole is provided on the connecting platform, the other end of the steel wire rope (330) passes through the mounting hole and is fixed to the flap (32), and a spring (332) is provided on the steel wire rope (330) between the connecting platform and the sliding block (331).

4. A one-way drainage device inside a slope according to claim 3, characterized in that: A water flow acceleration portion (34) is provided in the valve body (30), and the water flow acceleration portion (34) comprises a connecting shaft (340), the connecting shaft (340) is rotatably mounted on the valve body (30), an acceleration wheel (341) is rotatably connected to the end of the connecting shaft (340) located inside the valve body (30), and an auxiliary wheel (344) is installed on the end of the connecting shaft (340) located outside the valve body (30); A one-way limiting portion is provided on the connecting shaft (340) between the inner wall of the valve body (30) and the acceleration wheel (341).

5. The one-way drainage device inside the slope according to claim 4, characterized in that: The one-way limiting portion comprises a ratchet (342) and a limiting plate (343); the ratchet (342) is mounted on the connecting shaft (340); one end of the limiting plate (343) is rotatably connected to the inner wall of the valve body (30); and the other end of the limiting plate (343) is clamped in a ratchet groove on the ratchet (342).

6. The one-way drainage device inside a slope according to claim 2, characterized in that: The valve body (30) is provided with a weight-reducing chamber (31).

7. The one-way drainage device inside a slope according to claim 1, characterized in that: The filter part (2) comprises a geotextile and a filter material, the filter material wraps the geotextile, the geotextile is tied to the end of the drainage pipe (1), and the filter material is located at the end of the drainage pipe (1).

8. The one-way drainage device inside a slope according to claim 7, characterized in that: The length and width of the geotextile are both 30-50 cm.

9. The one-way drainage device inside a slope according to claim 1, characterized in that: The drainage pipe (1) is made of polyethylene.

10. The one-way drainage device inside a slope according to claim 1, characterized in that: The diameter of the drainage pipe (1) is 80-120 mm.

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