Directional drainage guiding device for sand-free pervious concrete block embedded PVC drainage pipe

Abstract

The invention discloses a sand-free pervious concrete block embedded PVC drainage pipe directional guide drainage device, and relates to the technical field of pipeline installment, the sand-free pervious concrete block embedded PVC drainage pipe directional guide drainage device comprises a main body, a through groove is formed in the center of the main body, a plurality of directional assemblies are fixedly installed in the main body corresponding to the through groove, and the directional assemblies are circumferentially distributed about the center line of the through groove; a fixing assembly is fixedly installed on the bottom face, corresponding to the through groove, of the main body, a plurality of lead screws are installed in the position, corresponding to the fixing assembly, of the interior of the main body in a threaded mode, each lead screw is located between every two adjacent orientation assemblies, supporting pads are fixedly installed at the lower ends of the multiple lead screws, and the outer surfaces of the multiple lead screws are sleeved with brushless motors; the brushless motor is fixedly connected with the main board, the multiple directional assemblies are evenly distributed, all-directional constraint on the pipe is formed, torsion and inclination risks caused by traditional single-side fixing are thoroughly eliminated, multi-directional stress changes can be responded in real time, and installation under complex geological conditions can be adapted.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline installation, in particular to a directional drainage device for PVC drainage pipes embedded in sand-free permeable concrete blocks. Background Art

[0002] Permeable concrete, also known as porous concrete, sandless concrete, or permeable flooring, is a porous, lightweight concrete made from aggregate, cement, a reinforcing agent, and water. It contains no fine aggregate. Permeable concrete consists of a thin layer of cement slurry coated on the surface of coarse aggregate, forming a honeycomb structure with evenly distributed pores. This makes it breathable, water-permeable, and lightweight.

[0003] In recent years, with the demand for flood control safety of water conservancy rivers and improvement of river landscape, the construction of river section hardening projects in urban landscape sections and special function river sections has become more and more common in various places. After the river slope is hardened, in order to ensure the internal and external water and soil balance and the stability of the slope, it is often necessary to set up slope protection drainage pipes and other measures to divert the water flow from the back side of the hardened slope.

[0004] During the construction process, the current slope protection drainage pipe will be placed in the inner layer of the slope protection with geotextile wrapped with gravel. However, this drainage structure has exposed many shortcomings in actual use. During the construction process, the installation procedure is very complicated, and in order to prevent the PVC drainage pipe from tilting during the concrete pouring process, a special wooden box must be made to fix it. The manual marking process is limited by the operator's experience, line of sight obstruction (such as the collapse of the trench side wall) and the accuracy of the measuring tool. The initial positioning error can reach ±5mm, and the simple bracket only imposes constraints on one side or the bottom of the pipe, and cannot form a spatial mechanical balance, causing the pipe to easily deviate under dynamic disturbances such as the impact of concrete pouring and the lateral pressure of the slurry. Especially in complex geological conditions, the creep characteristics of the soft soil layer, the fracture zone of the rock fault and the buoyancy of the groundwater will further amplify the positioning deviation. Therefore, the present invention proposes a directional drainage device for PVC drainage pipes embedded in sandless permeable concrete blocks. Summary of the Invention

[0005] In order to solve the above technical problems, a directional drainage device for PVC drainage pipes embedded in sandless permeable concrete blocks is provided, which solves the problem that the above-mentioned simple bracket only imposes constraints on one side or the bottom of the pipe, and cannot form spatial mechanical balance, resulting in the pipe being easily offset under dynamic disturbances such as concrete pouring impact and lateral pressure of slurry. Especially in complex geological conditions, the creep characteristics of soft soil layers, the fracture zones of rock faults and the buoyancy of groundwater will further amplify the problem of positioning deviation.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] A directional drainage device for PVC drainage pipes embedded in sandless permeable concrete blocks, comprising a main body, a through groove being provided at the center of the main body, a plurality of directional components being fixedly installed inside the main body corresponding to the through groove, and the plurality of directional components being distributed circumferentially about the center line of the through groove, a fixing component being fixedly installed on the bottom surface of the main body corresponding to the through groove, a plurality of screw rods being threadedly installed inside the main body corresponding to the fixing component, and a single screw rod being located between two adjacent directional components, support pads being fixedly installed on the lower ends of the plurality of screw rods, brushless motors being sleeved on the outer surfaces of the plurality of screw rods, and the brushless motors being fixedly connected to the main body, and two handles being fixedly installed on the upper surface of the main body, and the two handles being symmetrically distributed about the center line of the main body.

[0008] Preferably, the directional assembly includes a main board, a first movable groove is opened inside the main board, a guide rod is fixedly installed on the inner wall of the first movable groove, a movable circular plate is arranged inside the first movable groove corresponding to the guide rod, an extension rod is fixedly installed on the side of the movable circular plate away from the guide rod, a first spring is sleeved on the outer surface of the guide rod, two ends of the first spring are fixedly connected to the inner wall of the first movable groove and the surface of the movable circular plate respectively, a second movable groove is opened on the upper surface of the main board, and the second movable groove is connected to the first movable groove, a fixed rod is sleeved on the outer surface of the movable circular plate, the fixed rod is located inside the second movable groove, a plurality of limit grooves are opened on the inner wall of the second movable groove, and the plurality of limit grooves are linearly distributed along the edge direction of the second movable groove.

[0009] Preferably, an arc plate is fixedly mounted on one end of the extension rod away from the baffle, and a rounded corner is provided on the edge line above the inner wall of the arc plate. Several receiving grooves are rotatably mounted on the side of the arc plate away from the extension rod, and two guide rods are fixedly mounted on the inner walls of several of the receiving grooves, and the two guide rods are symmetrically distributed about the center line of the receiving groove. The outer surfaces of the two guide rods are each provided with a slide, and a roller is provided between the two slides, and the roller is rotatably connected to the two slides, and the outer surface of the guide rod is provided with a second spring, and the two ends of the second spring are respectively fixedly connected to the inner wall of the receiving groove and the surface of the slide.

[0010] Preferably, the fixing assembly includes an inner ring and an outer ring, both of which are fixedly connected to the main body, a protective ring is arranged between the inner ring and the outer ring, a plurality of connecting plates are fixedly installed inside the protective ring, and the plurality of connecting plates are distributed circumferentially about the center line of the protective ring, and the bottom surfaces of the inner ring and the outer ring corresponding to the connecting plates are provided with connecting grooves, and the connecting grooves are interference fit with the connecting plates, and the fitting tolerance is 1mm-2mm, a plurality of fixing grooves are provided inside the inner ring, and the plurality of fixing grooves are distributed circumferentially about the center line of the inner ring, and the fixing grooves pass through the protective ring and the inner ring, a limiting rod is arranged inside the fixing groove, and a limiting plate is fixedly installed on the outer surface of the limiting rod.

[0011] Preferably, a buffer pad is fixedly installed on the inner wall of the first moving groove corresponding to the moving circular plate.

[0012] Preferably, a V-shaped plate is fixedly mounted on one end of the protective ring away from the main body.

[0013] Preferably, a buffer plate is fixedly mounted on the bottom surface of the main body, and the buffer plate is made of polyurethane.

[0014] Preferably, the roller is made of rubber.

[0015] A PVC drainage pipe is installed in the directional component. The PVC drainage pipe extends to the backwater side of the slope and is filled with permeable bricks. The PVC drainage pipe is buried in the permeable bricks.

[0016] The permeable bricks are made of sand-free permeable concrete.

[0017] Compared with the prior art, the advantages of the present invention are: the present invention sets a directional component and a fixed component, and the fixed rod in the directional component cooperates with the first spring to make the arc plate fit tightly against the drain pipe. At the same time, when the drain pipe is offset, the first spring and the extension rod adjust the drain pipe. The roller in the directional component reduces the friction between the arc plate and the drain pipe. The fixed component facilitates the fixation of the entire system. At the same time, when pouring concrete, the drain pipe can be given secondary protection to prevent deviation during pouring, thereby improving the stability of the drainage pipe installation. At the same time, multiple directional components are evenly distributed to form an all-round constraint on the pipe, completely eliminating the torsion and tilt risks caused by traditional unilateral fixation, and each unit is independently controlled, which can respond to multi-directional stress changes in real time and adapt to installation under complex geological conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 An exploded view of the directional component of the present invention;

[0020] Figure 3 This is a diagram showing the internal structure of the curved plate in the present invention;

[0021] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0022] Figure 5 An exploded view of the fixing assembly of the present invention;

[0023] Figure 6 It is an implementation effect diagram of the present invention;

[0024] Figure 7It is an internal structure diagram of the implementation effect of the present invention;

[0025] Figure 8 for Figure 7 A partial enlarged view of B.

[0026] 301, main body; 302, first movable groove; 303, guide rod; 304, movable circular plate; 305, extension rod; 306, first spring; 307, second movable groove; 308, fixing rod; 309, limiting groove; 310, curved plate; 311, fillet; 312, storage groove; 313, guide rod; 314, slide plate; 315, roller; 316, second spring; 4, fixing assembly; 401, inner ring; 402, outer ring; 403, protective ring; 404, connecting plate; 405, connecting groove; 406, fixing groove; 407, limiting rod; 5, screw rod; 6, support pad; 7, brushless motor; 8, handle; 9, buffer pad; 10, V-shaped plate; 11, buffer plate; 12, PVC drain pipe; 13, permeable brick. DETAILED DESCRIPTION

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0028] Reference Figure 1-8As shown, a directional drainage device for PVC drainage pipes embedded in sandless permeable concrete blocks is provided, comprising a main body 1, a through slot 2 being provided at the center of the main body 1, a plurality of directional components 3 being fixedly installed inside the main body 1 corresponding to the through slot 2, and the plurality of directional components 3 being distributed circumferentially about the center line of the through slot 2, a fixing component 4 being fixedly installed on the bottom surface of the main body 1 corresponding to the through slot 2, a plurality of screw rods 5 being threadedly installed inside the main body 1 corresponding to the fixing component 4, and a single screw rod 5 being located between two adjacent directional components 3, a support pad 6 being fixedly installed on the lower ends of the plurality of screw rods 5, a brushless motor 7 being sleeved on the outer surfaces of the plurality of screw rods 5, and the brushless motor 7 being fixedly connected to the main body 1, two handles 8 being fixedly installed on the upper surface of the main body 1, and the two handles 8 being symmetrically distributed about the center line of the main body 1, the plurality of brushless motors 7 being controlled by a PLC to realize simultaneous start and stop between the plurality of brushless motors 7, a pressure sensor being provided inside the support pad 6, and when the support pad 6 is subjected to a certain pressure After the degree is reached, the corresponding screw rod 5 stops rotating. When placing the PVC drain pipe 12, the staff moves the entire device to the appropriate position through the handle 8, and then squeezes the main body 1 to make the fixing component 4 enter the soil at the appropriate position. The staff inserts the PVC drain pipe 12 into the center of the through groove 2. The directional component 3 assists in the installation of the PVC drain pipe 12. At the same time, during the installation of the PVC drain pipe 12, the directional component 3 can correct the installation posture of the drain pipe so that the drain pipe maintains an installation posture perpendicular to the main board 301. After the PVC drain pipe 12 is fully installed, the equipment needs to be taken out, and the brushless motor 7 rotates the screw rod 5, which pushes the support pad 6 in the axial direction. The screw rod 5 pushes the equipment off the ground and separates the fixing component 4 at the same time, thereby further protecting the PVC drain pipe 12. When installing pipes on slopes, the fixing component 4 can effectively improve the overall flexibility of the equipment, so that the equipment as a whole is fixed in a suitable position.

[0029] like Figure 2As shown, the orienting component 3 includes a main board 301, a first movable groove 302 is provided inside the main board 301, a guide rod 303 is fixedly installed on the inner wall of the first movable groove 302, a movable circular plate 304 is provided inside the first movable groove 302 corresponding to the guide rod 303, an extension rod 305 is fixedly installed on the side of the movable circular plate 304 away from the guide rod 303, a first spring 306 is sleeved on the outer surface of the guide rod 303, and the two ends of the first spring 306 are fixedly connected to the inner wall of the first movable groove 302 and the surface of the movable circular plate 304 respectively, a second movable groove 307 is provided on the upper surface of the main board 301, and the second movable groove 307 is communicated with the first movable groove 302, a fixing rod 308 is sleeved on the outer surface of the movable circular plate 304, and the fixing rod 308 is located inside the second movable groove 307. The inner wall of the second movable groove 307 is provided with a plurality of limiting grooves 309, and the plurality of limiting grooves 309 are linearly distributed along the edge direction of the second movable groove 307. When installing the PVC drain pipe 12, the staff rotates the fixing rod 308 to make the fixing rod 308 disengage from the current limiting groove 309. When the PVC drain pipe 12 enters between the plurality of curved plates 310, the end of the PVC drain pipe 12 pushes the curved plate 310 along the rounded corner 311 to move the fixing rod 308. When the fixing rod 308 is stabilized at a certain limiting groove 309, the staff rotates the fixing rod 308 to fix the curved plate 310 at the current position. During the movement of the fixing rod 308, the first spring 306 pushes the movable circular plate 304 in real time, so that the curved plate 310 is in close contact with the PVC drain pipe 12.

[0030] like Figure 3-Figure 4 As shown, an arc-shaped plate 310 is fixedly installed at one end of the extension rod 305 away from the baffle, and a rounded corner 311 is opened on the edge line above the inner wall of the arc-shaped plate 310. A plurality of receiving grooves 312 are rotatably installed on the side of the arc-shaped plate 310 away from the extension rod 305. Two guide rods 313 are fixedly installed on the inner walls of the plurality of receiving grooves 312. The two guide rods 313 are symmetrically distributed about the center line of the receiving groove 312. The outer surfaces of the two guide rods 313 are sleeved with slides 314. A roller 315 is provided between the two slides 314. The roller 315 and the two slides 314 are rotatably connected. Then, a second spring 316 is sleeved on the outer surface of the guide rod 313, and the two ends of the second spring 316 are fixedly connected to the inner wall of the receiving groove 312 and the surface of the slide plate 314 respectively. During the installation of the PVC drain pipe 12, when the curved plate 310 is in close contact with the drain pipe, the roller 315 is in close contact with the PVC drain pipe 12, and the roller 315 is subjected to the pressure applied by the drain pipe, so that the roller 315 drives the slide plate 314 to push the second spring 316 to contract, so that the roller 315 reduces the friction between the drain pipe and the curved plate 310, and at the same time prevents the drain pipe from being damaged by the roller 315.

[0031] like Figure 5As shown, the fixing assembly 4 includes an inner ring 401 and an outer ring 402, both of which are fixedly connected to the main body 1, and a protective ring 403 is provided between the inner ring 401 and the outer ring 402. A plurality of connecting plates 404 are fixedly installed inside the protective ring 403, and the plurality of connecting plates 404 are distributed around the circumference of the center line of the protective ring 403. The bottom surfaces of the inner ring 401 and the outer ring 402 corresponding to the connecting plates 404 are both provided with connecting grooves 405, and the connecting grooves 405 and the connecting plates 404 are interference fit, and the fitting tolerance is 1mm to 2mm. A plurality of fixing grooves 406 are provided inside the inner ring 401, and the plurality of fixing grooves 406 are distributed around the circumference of the center line of the inner ring 401, and the fixing grooves 406 pass through the protective ring 403 and the inner ring 4 01. A limiting rod 407 is provided inside the fixing groove 406, and a limiting plate is fixedly installed on the outer surface of the limiting rod 407. When installing the equipment, the staff inserts the protective ring 403 between the inner ring 401 and the outer ring 402, and fixes the protective ring 403 between the inner ring 401 and the outer ring 402 through the connecting plate 404 and the connecting groove 405. At the same time, the limiting rod 407 is inserted into the fixing groove 406 to further fix the protective ring 403 between the inner ring 401 and the outer ring 402. After the installation is completed, the staff first removes the limiting rod 407, and when pulling the main body 1, the protective ring 403 is detached from between the inner ring 401 and the outer ring 402, and then the protective ring 403 is left in the installation location to improve the stability of the drainage pipe.

[0032] like Figure 2 As shown, a buffer pad 9 is fixedly installed on the inner wall of the first moving groove 302 corresponding to the moving circular plate 304. When the moving circular plate 304 slides in the first moving groove 302, the buffer pad 9 can effectively absorb the impact energy between the moving circular plate 304 and the inner wall of the first moving groove 302, reduce the structural damage caused by mechanical vibration or external force, and reduce the rigid collision between the moving circular plate 304 and the inner wall of the first moving groove 302 through the elastic deformation of the buffer pad 9, thereby significantly reducing the noise generated during the operation of the device.

[0033] like Figure 5 As shown, a V-shaped plate 10 is fixedly installed at one end of the protective ring 403 away from the main body 1. The V-shaped opening structure of the V-shaped plate 10 facilitates the protective ring 403 to quickly enter the interior of a suitable position. When the protective ring 403 is lowered, the inclined surface of the V-shaped opening serves as the initial contact surface, which can decompose the vertical downward impact force into a component force along the inclined surface, thereby reducing the rigid collision strength between the edge of the protective ring 403 and the hole wall and reducing structural damage. The inclusive design of the V-shaped opening makes it suitable for a variety of installation methods such as vertical lowering, oblique insertion or horizontal pushing.

[0034] like Figure 1As shown, a buffer plate 11 is fixedly installed on the bottom surface of the main body 1. The material of the buffer plate 11 is polyurethane. When the device is subjected to external construction force, the polyurethane buffer plate 11 absorbs vibration energy through elastic deformation, reduces the rigid collision between the main body 1 structure and the hard substrate, and avoids the displacement or damage of the main board 301 due to impact. The high compressive strength and low creep characteristics of the polyurethane material enable the buffer plate 11 to maintain a stable thickness under long-term pressure, prevent the device from tilting due to uneven settlement of the substrate, and ensure the directional drainage accuracy of the PVC drain pipe 12. The polyurethane buffer plate 11 has high tolerance to chloride ions in groundwater and chemical additives in construction, avoiding the degradation of buffering performance due to corrosion.

[0035] like Figure 3-Figure 4 As shown, the roller 315 is made of rubber. The high elasticity of the rubber material can effectively absorb the impact force generated by the PVC drain pipe 12 during the insertion or adjustment process, avoid scratches or indentations on the pipe surface due to rigid contact, and ensure the integrity of the pipe. The high friction coefficient of the rubber surface can prevent the PVC drain pipe 12 from slipping when sliding on the roller 315, ensuring that the pipe moves stably in a predetermined direction. The damping characteristics of the rubber can significantly reduce the friction noise between the roller 315 and the pipe and supporting structure during rotation, thereby improving the acoustic environment of the construction site. During the pipe adjustment process, the rubber roller 315 reduces the transmission of mechanical vibration to the main body 1 structure through elastic deformation, thereby reducing the overall vibration amplitude of the device. The rubber material is tolerant to chloride ions and common construction chemical additives in groundwater, thereby avoiding hardening, cracking or performance degradation of the roller 315 due to corrosion.

[0036] like Figure 6-Figure 8 As shown, a PVC drainage pipe 12 is installed in the directional component 3. The PVC drainage pipe 12 extends to the backwater side of the slope and is filled with permeable bricks 13. The PVC drainage pipe 12 is buried in the permeable bricks 13. By integrating the directional component 3 and the PVC drainage pipe 12 inside the slope, a modular directional drainage system is formed, which solves the problem of complex construction and easy deflection of traditional slope protection drainage pipes.

[0037] The permeable bricks 13 are made of sandless permeable concrete. The highly permeable material accelerates the penetration of water in the slope into the PVC drainage pipe 12, improving drainage efficiency. The material is light and has strong pressure resistance, which is suitable for complex geological conditions of the slope and reduces the difficulty of transportation and construction.

[0038] Working principle: When placing the PVC drainage pipe 12, the staff moves the entire device to the appropriate position through the handle 8, and then squeezes the main body 1 to make the fixing component 4 enter the soil at the appropriate position. At the same time, the screw 5 rotates. When the support pad 6 is subjected to a certain pressure, the corresponding screw 5 stops rotating. The staff rotates the fixing rod 308 to make the fixing rod 308 disengage from the current limit groove 309. When the PVC drainage pipe 12 enters between several curved plates 310, the end of the PVC drainage pipe 12 pushes the curved plate 310 along the rounded corner 311, thereby The fixing rod 308 moves. When the fixing rod 308 is stabilized at a certain limiting groove 309, the staff rotates the fixing rod 308 to fix the arc plate 310 at the current position. During the movement of the fixing rod 308, the first spring 306 pushes the moving circular plate 304 in real time, so that the arc plate 310 is in close contact with the PVC drain pipe 12. When the arc plate 310 is in close contact with the drain pipe, the roller 315 is in close contact with the PVC drain pipe 12. The roller 315 is subjected to the pressure applied by the drain pipe, so that the roller 315 drives the slide plate 314 to push the second spring 316 to retract. The roller 315 reduces the friction between the drain pipe and the curved plate 310, and prevents the drain pipe from being damaged by the roller 315. The high friction coefficient of the rubber surface can prevent the PVC drain pipe 12 from slipping when sliding on the roller 315, ensuring that the pipe moves stably in the predetermined direction. The directional component 3 can correct the installation posture of the drain pipe so that the drain pipe maintains an installation posture perpendicular to the main board 301. After the installation is completed, the staff first removes the limit rod 407, and the brushless motor 7 rotates the screw rod 5, which pushes the support pad 6 in the axial direction, and the screw rod 5 pushes The equipment leaves the ground, and when the main body 1 is pulled, the protective ring 403 is separated from the inner ring 401 and the outer ring 402, and the protective ring 403 is left in the installation location, thereby improving the stability of the drainage pipe and leaving the protective ring 403 in this position, thereby further protecting the PVC drainage pipe 12; when installing the pipe on a slope, the V-shaped plate 10 at the lower end of the protective ring 403 and the inclusive design of the V-shaped opening make it suitable for various installation methods such as vertical lowering, oblique insertion or horizontal pushing, thereby improving the overall flexibility of the equipment, so that the equipment as a whole is fixed in a suitable position.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A directional drainage device for PVC drainage pipes embedded in sand-free permeable concrete blocks, comprising a main body (1), characterized in that: A through slot (2) is provided at the center of the main body (1), and a plurality of directional components (3) are fixedly installed inside the main body (1) corresponding to the through slot (2), and the plurality of directional components (3) are distributed circumferentially about the center line of the through slot (2). A fixing component (4) is fixedly installed on the bottom surface of the main body (1) corresponding to the through slot (2), and a plurality of screw rods (5) are threadedly installed inside the main body (1) corresponding to the fixing component (4), and a single screw rod (5) is located between two adjacent directional components (3). Support pads (6) are fixedly installed at the lower ends of the plurality of screw rods (5), and brushless motors (7) are sleeved on the outer surfaces of the plurality of screw rods (5), and the brushless motors (7) are fixedly connected to the main body (1). Two handles (8) are fixedly installed on the upper surface of the main body (1), and the two handles (8) are symmetrically distributed about the center line of the main body (1).

2. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 1, characterized in that: The directional assembly (3) comprises a main board (301), a first movable groove (302) is provided inside the main board (301), a guide rod (303) is fixedly installed on the inner wall of the first movable groove (302), a movable circular plate (304) is provided inside the first movable groove (302) corresponding to the guide rod (303), an extension rod (305) is fixedly installed on the side of the movable circular plate (304) away from the guide rod (303), a first spring (306) is sleeved on the outer surface of the guide rod (303), and the two ends of the first spring (306) are respectively connected to the first spring (306). The inner wall of a movable groove (302) is fixedly connected to the surface of a movable circular plate (304); a second movable groove (307) is provided on the upper surface of the main plate (301), and the second movable groove (307) is communicated with the first movable groove (302); a fixed rod (308) is sleeved on the outer surface of the movable circular plate (304), and the fixed rod (308) is located inside the second movable groove (307); a plurality of limiting grooves (309) are provided on the inner wall of the second movable groove (307), and the plurality of limiting grooves (309) are linearly distributed along the edge direction of the second movable groove (307).

3. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 2, characterized in that: An arc-shaped plate (310) is fixedly mounted on one end of the extension rod (305) away from the baffle, and a rounded corner (311) is provided on the edge line above the inner wall of the arc-shaped plate (310). A plurality of receiving grooves (312) are rotatably mounted on one side of the arc-shaped plate (310) away from the extension rod (305). Two guide rods (313) are fixedly mounted on the inner walls of the plurality of receiving grooves (312). The two guide rods (313) are symmetrically distributed about the center line of the receiving groove (312). The outer surfaces of the two guide rods (313) are both sleeved with a slide plate (314). A roller (315) is provided between the two slide plates (314). The roller (315) is rotatably connected to the two slide plates (314). A second spring (316) is sleeved on the outer surface of the guide rod (313). The two ends of the second spring (316) are respectively fixedly connected to the inner wall of the receiving groove (312) and the surface of the slide plate (314).

4. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 1, characterized in that: The fixing assembly (4) comprises an inner ring (401) and an outer ring (402), both of which are fixedly connected to the main body (1), a protective ring (403) is provided between the inner ring (401) and the outer ring (402), a plurality of connecting plates (404) are fixedly installed inside the protective ring (403), and the plurality of connecting plates (404) are distributed around the center line of the protective ring (403), and the bottom surfaces of the inner ring (401) and the outer ring (402) corresponding to the connecting plates (404) are both A connecting groove (405) is provided, and the connecting groove (405) and the connecting plate (404) are interference-fitted, and the fitting tolerance is 1 mm to 2 mm. A plurality of fixing grooves (406) are provided inside the inner ring (401), and the plurality of fixing grooves (406) are distributed circumferentially about the center line of the inner ring (401), and the fixing grooves (406) pass through the protective ring (403) and the inner ring (401). A limiting rod (407) is provided inside the fixing groove (406), and a limiting plate is fixedly installed on the outer surface of the limiting rod (407).

5. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 2, characterized in that: A buffer pad (9) is fixedly mounted on the inner wall of the first movable groove (302) corresponding to the movable circular plate (304).

6. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 4, characterized in that: A V-shaped plate (10) is fixedly mounted on one end of the protective ring (403) away from the main body (1).

7. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 1, characterized in that: A buffer plate (11) is fixedly mounted on the bottom surface of the main body (1), and the buffer plate (11) is made of polyurethane.

8. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 3, characterized in that: The material of the roller (315) is rubber.

9. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 1, characterized in that: A PVC drainage pipe (12) is installed in the directional component (3), and the PVC drainage pipe (12) extends to the backwater side of the slope body and is filled with permeable bricks (13), and the PVC drainage pipe (12) is buried in the permeable bricks (13).

10. The directional drainage device for embedding PVC drainage pipes in sand-free permeable concrete blocks according to claim 9, characterized in that: The permeable bricks (13) are made of sand-free permeable concrete.

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