CN112609803A

CN112609803A - Afforestation drainage system

Info

Publication number: CN112609803A
Application number: CN202011407742.8A
Authority: CN
Inventors: 马兵; 司冠雄; 姜韵竹
Original assignee: Beijing Jingrun Landscaping Engineering Co ltd; Beijing Urban and Rural Construction Group Co Ltd
Current assignee: Beijing Jingrun Landscaping Engineering Co ltd; Beijing Urban and Rural Construction Group Co Ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-04-06
Anticipated expiration: 2040-12-04
Also published as: CN112609803B

Abstract

The utility model relates to an afforestation drainage system belongs to drainage technical field, and is not smooth to current drainage well drainage, has a large amount of ponding on the road, influences people's trip problem and provides following technical scheme, the technical essential of this application, including drainage well with set up in drainage well's well lid, drainage well intercommunication has drainage channel, drainage channel axis extension line and drainage well axis intersect in a bit, and this bit is located drainage well's axis, supreme gravel layer, sand bed have been laid in proper order down to drainage channel's outside, drainage channel is provided with a plurality of holes of permeating water, and is a plurality of it sets up along drainage channel axis direction equidistant to permeate water the hole, the drainage channel outside is provided with the infiltration structure who supplies moisture to get into. This application has the rainwater that reduces and overflows the road surface, improves drainage system's drainage efficiency's advantage.

Description

Afforestation drainage system

Technical Field

The application relates to the technical field of drainage, in particular to landscaping drainage system.

Background

Gardens are beautiful natural environments and rest areas created by applying engineering technology and artistic means in certain regions and by means of terrain modification, tree planting, flower and grass planting, building of buildings, garden path arrangement and the like. Most gardens currently have drainage systems.

Referring to fig. 1, drainage system in gardens among the prior art mainly includes that drainage well 11 and lid locate the well lid 12 of drainage well 11 openings part, and a plurality of bar through-holes 121 have been seted up to well lid 12, and bar through-hole 121 sets up along the radial direction of well lid 12, and bar through-hole 121 communicates drainage well 11 inside and outside.

Because the both sides of drainage well 11 are provided with gardens usually, when great torrential rain, rainwater in the gardens can not in time permeate the underground, and the rainwater carries earth, branch and converges into drainage well 11, blocks up the bar through-hole 121 of well lid 12 easily when earth, branch are more, leads to the drainage not smooth, and the rainwater can be gone to the road surface, has a large amount of ponding on the road, influences people's trip.

Disclosure of Invention

In order to reduce the rainwater and overflow the road surface, improve drainage system's drainage efficiency, this application provides an afforestation drainage system, adopts following technical means:

the utility model provides an afforestation drainage system, includes the drainage shaft and sets up in the well lid of drainage shaft, the drainage shaft intercommunication has drainage channel, drainage channel axis extension line and drainage shaft axis intersect in a bit, and this point lies in the axis of drainage shaft, supreme gravel layer, sand bed have been laid in proper order down to drainage channel's outside, drainage channel is provided with a plurality of holes of permeating water, and is a plurality of towards one side on road surface the hole of permeating water sets up along drainage channel axis direction equidistant, the drainage channel outside is provided with the infiltration structure that supplies moisture to get into.

By adopting the technical scheme, the drainage well and the drainage channel are arranged for draining water flow, the sand layer is used for water seepage and can permeate water by arranging the sand layer and the sand layer, and when the water is too large, the water can flow to the drainage channel along the sand layer and the sand layer, so that the water is prevented from overflowing to the road surface; inside water in gravel layer can get into drainage channel through the hole of permeating water, reduce inside earth, the branch of getting into drainage channel, because drainage well and drainage channel communicate each other, can discharge the inside water that gets into drainage well, through mutually supporting of drainage well and drainage channel, improve drainage system's drainage efficiency.

Optionally, the permeable structure includes permeable cloth covering the outside of the drainage channel, and the permeable cloth covers the water permeable holes.

Through adopting above-mentioned technical scheme, can realize the sheltering from to the hole department that permeates water through setting up infiltration cloth, with sand bed and gravel layer compaction in the top of permeating cloth, keep permeating the connection between cloth and the drainage channel on the one hand, on the other hand, can avoid inside the earth entering drainage channel of sand bed and gravel layer.

Optionally, one side of the permeation cloth facing the drainage channel is provided with a bonding layer.

Through adopting above-mentioned technical scheme, through setting up the tie coat, improve the joint strength between infiltration cloth and the drainage channel, avoid when covering in infiltration cloth top with sand bed and gravel layer, infiltration cloth produces relative displacement.

Optionally, the inside in the hole of permeating water is provided with the pipe of permeating water, the intraduct of permeating water is provided with the filter screen, the pipe of permeating water with permeate water hole threaded connection.

Through adopting above-mentioned technical scheme, realize sheltering from to the hole of permeating water through setting up the filter screen, when reducing rivers and passing through sand bed and gravel layer, bring the inside silt of sand bed and gravel layer into inside the drainage channel, reduce the entering volume of the inside silt of drainage channel.

Optionally, the permeable structure includes a movable rod and a sealing ring arranged inside the permeable pipe, the sealing ring is arranged along a radial direction of the permeable pipe, an inner diameter of the sealing ring is smaller than an inner diameter of the permeable pipe, the movable rod can slide along an axial direction of the permeable pipe, the filter screen is arranged on one side of the permeable pipe close to an upper surface of the road, and an axial line of the movable rod is coincident with an axial line of the permeable pipe; the one end that the movable rod is close to the filter screen is provided with the end cap, the end cap can the shutoff in the opening part of sealing ring, the intraduct of permeating water is provided with the elastic component that keeps end cap and sealing ring contact state.

Through adopting above-mentioned technical scheme, when the drainage channel outside has the rivers to pass through, inside water can get into the pipe of permeating water through the filter screen, water acts on the end cap and extrudees the elastic component, and the end cap drives movable rod synchronous motion, removes the sealing connection between end cap and the sealing ring, and inside water can get into the drainage channel through the end cap and the interval department between the pipe of permeating water this moment, the realization water was in drainage channel's one-way flow.

Optionally, one side of the plug, which faces the filter screen, is provided with an arc surface, and a contact end of the sealing ring and the plug is provided with an inclined surface.

By adopting the technical scheme, the contact area between the plug and the sealing ring is increased, so that the sealing ring is tangent to the arc surface of the plug, and the sealing property between the plug and the sealing ring is improved.

Optionally, the filter screen and the permeable pipe are detachably connected through a connecting structure.

Through adopting above-mentioned technical scheme, be convenient for realize the change to the filter screen.

Optionally, connection structure includes the clamp plate and sets up in the grafting piece of filter screen, the accommodation space has been seted up to the pipe of permeating water, the clamp plate middle part is provided with articulated piece, articulated piece is connected through pivot and the pipe rotation of permeating water, the clamp plate is provided with the fixture block towards one side of grafting piece, the grafting piece corresponds and has seted up the draw-in groove, the inside torsional spring that can keep fixture block and draw-in groove joint state that is provided with of accommodation space.

Through adopting above-mentioned technical scheme, during the installation, drive the clamp plate and rotate around its center of rotation, the clamp plate drives the fixture block and moves to one side of keeping away from the draw-in groove for the setting of fixture block does not hinder the inside that the plug block inserted the pipe of permeating water, covers when the opening of the pipe of permeating water completely as the filter screen, removes the drive to the clamp plate, and the torsional spring drives the clamp plate home position, makes the fixture block insert the inside of draw-in groove, thereby the restriction plug block is deviate from the pipe of permeating water.

Optionally, a convex block is arranged on one side of the pressing plate facing the pressing hole, and the side wall of the accommodating space is provided with the pressing hole for the convex block to pass through.

Through adopting above-mentioned technical scheme, be convenient for realize the rotation drive to the clamp plate, convenient operation.

Optionally, a filter frame with an upper end opening is arranged inside the drainage well, and the opening end of the filter frame faces the well lid; and a lifting assembly is arranged between the filter frame and the well lid.

Through adopting above-mentioned technical scheme, when inside silt, branch pass through the entering drainage shaft of well lid, silt, branch can be sheltered from under the effect of filter frame, and it is inside to reduce silt, branch entering drainage channel. Through the artificial well lid that shifts out, the well lid drives the filter frame through the hoisting component and shifts out the drainage well in step, realizes gathering the clearance of silt, branch to the drainage well inside.

In summary, the present application has the following beneficial effects:

firstly, a drainage well and a drainage channel are arranged for discharging water flow, a sandstone layer and a sand layer are arranged for permeating water, and the permeated water enters the drainage channel through a water permeable hole, so that the water is reduced from overflowing to the road surface; meanwhile, soil and branches entering the inside of the drainage channel are reduced under the filtering action of the sand layer and the sand layer, the drainage well is communicated with the drainage channel, so that water entering the inside of the drainage well can be drained, and the drainage efficiency of a drainage system is improved through the mutual matching of the drainage well and the drainage channel;

secondly, the permeable holes can be shielded by arranging the permeable cloth, and the sand layer and the gravel layer are compacted above the permeable cloth, so that the soil of the sand layer and the gravel layer can be prevented from entering the inside of the drainage channel;

thirdly, the drainage well is arranged for drainage of garden roads, and the filtering frame is arranged in the drainage well, so that silt and branches entering the drainage well can be shielded, the silt and the branches entering the drainage channel are reduced, and the drainage channel is prevented from being blocked;

the well lid is connected and the filter frame is filtered through the hoisting component, the synchronous movement of the well lid and the filter frame can be realized, and the cleaning of silt and branches accumulated on the filter frame is facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of a related art drainage well;

FIG. 2 is a top view of a drainage system for landscaping according to a first embodiment of the present application;

FIG. 3 is a sectional view taken along line A-A in FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 3;

fig. 5 is a schematic view showing the connection among the drainage well, the drainage channel and the infiltration structure of the landscaping drainage system according to the second embodiment of the present application;

FIG. 6 is a sectional view taken along line C-C of FIG. 5;

FIG. 7 is an enlarged view of section D of FIG. 6;

fig. 8 is a top view of a drainage system for landscaping in a third embodiment of the present application;

FIG. 9 is a cross-sectional view taken along line E-E of FIG. 8;

fig. 10 is an enlarged view of a portion F in fig. 9.

In the figure, 11, a drainage well; 111. a butting ring; 12. a well cover; 121. a strip-shaped through hole; 2. a filter frame; 21. a horizontal portion; 22. a vertical portion; 221. an annular abutting edge; 23. a filtration pore; 3. a lifting assembly; 31. a lifting bar; 32. hanging a ring; 33. hooking; 4. a drainage channel; 41. water permeable holes; 42. a water permeable pipe; 421. an accommodating space; 422. a hole of abdication; 423. pressing the hole; 424. a limiting inner ring; 51. a sandstone layer; 52. a sand layer; 53. a filter screen; 6. a permeable structure; 61. permeating cloth; 62. a bonding layer; 63. a movable rod; 64. a seal ring; 641. a bevel; 65. a plug; 66. a compression spring; 7. a connecting structure; 71. pressing a plate; 711. a bump; 72. an insertion block; 721. a card slot; 73. a hinged block; 74. a rotating shaft; 75. a clamping block; 76. a torsion spring.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Example one

Combine fig. 2 and fig. 3, for the afforestation drainage system that this application discloses, including setting up the drainage well 11 in road both sides and vertical setting, drainage well 11 is pre-buried in the inside of road, and drainage well 11's upper end sets up to the opening, and drainage well 11 covers in its upper end opening part and is equipped with well lid 12, and well lid 12 is circular setting, and well lid 12 can seal drainage well 11's upper end opening, and when drainage well 11's upper end opening was located to well lid 12 lid, well lid 12's upper surface and road surface were in the coplanar.

Referring to fig. 2 and 3, the inside of the drain well 11 is provided with a filter frame 2, the filter frame 2 includes a horizontal portion 21 and a vertical portion 22, the horizontal portion 21 and the vertical portion 22 constitute a cylindrical structure having an upper end opened, and an open end of the filter frame 2 faces the well lid 12. Wherein, the horizontal part 21 and the well lid 12 parallel arrangement of filter frame 2, the vertical portion 22 of filter frame 2 and the internal perisporium parallel arrangement of drainage well 11, filter frame 2 and the internal perisporium interval of drainage well 11 set up.

With reference to fig. 2 and 3, the inside of the drainage well 11 is provided with the abutting ring 111 along the radial direction thereof, the inner diameter of the abutting ring 111 is larger than the outer diameter of the filter frame 2, the upper end of the vertical portion 22 of the filter frame 2 is bent outwards to form the annular abutting edge 221, and when the filter frame 2 is placed inside the drainage well 11, the annular abutting edge 221 abuts against the upper end face of the abutting ring 111 to support the filter frame 2.

Combine fig. 2 and fig. 3, filter frame 2 and seted up a plurality of filtration holes 23, when the water that carries earth, branch got into drainage well 11 inside, earth, branch dropped to filter frame 2 top, made earth, branch gather on filtering frame 2 under the effect of filtering holes 23, and water flows inside 11 through filtering holes 23 to drainage well, reduces the entering volume of 11 inside earth of drainage well, branch.

With reference to fig. 3 and 4, a lifting assembly 3 capable of realizing synchronous movement between the filter frame 2 and the well lid 12 is arranged between the filter frame 2 and the well lid 12, the lifting assembly 3 comprises two lifting rods 31 and two hanging rings 32, one of the hanging rings 32 is fixedly connected with the lower surface of the well lid 12, and the other hanging ring 32 is fixedly connected with the filter frame 2. The end part fixed mounting of the lifting rod 31 is provided with a hook 33 which can be hooked on the hanging ring 32, the number of the hooks 33 is equal to that of the hanging rings 32, during installation, the hooks 33 are hooked on the hanging rings 32, and the fixed connection between the well lid 12 and the filter frame 2 is realized.

Referring to fig. 3, the mounting hole has been seted up to the lateral wall of drainage well 11, and drainage well 11 installs drainage channel 4 in mounting hole department, and the inside of mounting hole is inserted to the tip of drainage channel 4, and drainage channel 4 passes through cement seal in its junction with the mounting hole, realizes drainage channel 4 and drainage well 11 intercommunication, and the water that gets into drainage well 11 inside can flow out through drainage channel 4.

Referring to fig. 3, the extension line of the axis of the drainage channel 4 intersects with the axis of the drainage well 11 at a point, the point is located on the axis of the drainage well 11, the drainage channel 4 is horizontally arranged, one side of the drainage channel 4 facing the road surface is provided with a plurality of water permeable holes 41, the plurality of water permeable holes 41 are arranged along the axis direction of the drainage channel 4 at equal intervals, when the water amount is large, the water can permeate to the vicinity of the peripheral wall of the drainage channel 4, the water permeating to the vicinity of the drainage channel 4 enters the inside of the drainage channel 4 through the water permeable holes 41, the drainage of the pavement water is realized, and the accumulation of the water on the pavement is reduced.

Referring to fig. 3, a sand stone layer 51 and a sand layer 52 are sequentially laid above the drainage channel 4 from bottom to top, rainwater can rapidly permeate into the ground through the sand layer 52 and is conveyed to the drainage channel 4 from the underground, so that the accumulated water on the road is reduced, and meanwhile, sundries such as leaves are effectively prevented from entering the drainage channel 4.

Referring to fig. 3, after rainwater penetrates into the sand layer 52, the rainwater may penetrate through the sand layer 51 to the ground, and when the rainwater is too much, the rainwater may penetrate along the sand layer 51 to the side of the drainage channel 4, so that the too much rainwater flows into the drainage channel 4.

Referring to fig. 3, a penetration structure 6 through which moisture penetrates is provided on an upper side of the drain passage 4. The penetration structure 6 comprises penetration cloth 61 coated outside the drainage channel 4, and the lower side of the penetration cloth 61 is provided with an adhesive layer 62, so that the penetration cloth 61 and the drainage channel 4 are fixed by adhesion, and at the moment, the penetration cloth 61 can cover the water penetration holes 41 of the drainage channel 4; the upper side of the permeable cloth 61 is compacted by the sand layer 51, and the water passing through the sand layer 52 and the sand layer 51 can be filtered by the permeable cloth 61.

The implementation principle of the first embodiment is as follows: the drainage well 11 and the drainage channel 4 are arranged for discharging water flow, meanwhile, the sand layer 52 is used for water seepage, the sand layer 51 can permeate water, when the water is too large, the water can permeate the sand layer 52 and then permeate the sand layer 51 to the ground, the water is primarily filtered by the sand layer 51 and the sand layer 52, and then the water permeating the sand layer 52 and the sand layer 51 is secondarily filtered by the permeation cloth 61, so that impurities entering the drainage channel 4 are reduced; the permeating water can enter the inside of the drainage channel 4 through the permeable holes 41, and the accumulation of the water on the road surface is reduced; simultaneously get into the inside rainwater of drainage well 11 and the inside water of drainage channel 4 and collect, the inside water of drainage well 11 gets into inside the discharge in the drainage channel 4, through the mutually supporting of drainage well 11 and drainage channel 4, improves drainage system's drainage efficiency.

After using for a long time, through artificially mentioning well lid 12, well lid 12 passes through lifting rod 31 pulling filter frame 2 synchronous motion, realizes gathering the clearance of silt, branch on filter frame 2.

Example two

The difference between the second embodiment and the first embodiment is that, with reference to fig. 5 and 6, the drainage channel 4 is provided with a water permeable pipe 42 inside the water permeable hole 41, the axis of the water permeable pipe 42 coincides with the axis of the water permeable hole 41, the water permeable pipe 42 is vertically disposed, the water permeable pipe 42 is inserted into the water permeable hole 41, and the water permeable pipe 42 and the water permeable hole 41 are in threaded connection.

Referring to fig. 6 and 7, the upper opening of the permeable tube 42 is provided with a filter screen 53, the filter screen 53 seals the upper opening of the permeable tube 42, the filter screen 53 is disposed on the side of the permeable tube 42 close to the upper surface of the road, and the permeable water can be filtered by the filter screen 53.

Referring to fig. 7, the filter net 53 and the water permeable pipe 42 are detachably connected by the connection structure 7. The connection structure 7 comprises a pressing plate 71 and an insertion block 72 arranged on the filter screen 53,

referring to fig. 7, the accommodation space 421 has been seted up to the lateral wall of the pipe 42 of permeating water, and the axis direction setting of the pipe 42 of permeating water is followed to the accommodation space 421, and the clamp plate 71 rotates and sets up in the inside of accommodation space 421, and the clamp plate 71 is vertical setting, and clamp plate 71 sets firmly articulated piece 73 towards the middle part of the pipe 42 inner wall side surface of permeating water, and the one end that clamp plate 71 was kept away from to articulated piece 73 sets up to the arc.

Referring to fig. 7, the hinge block 73 is rotatably connected to the water permeable pipe 42 through a rotating shaft 74, one end of the rotating shaft 74 is fixedly connected to the inner wall of the accommodating space 421, the other end of the rotating shaft 74 penetrates through the hinge block 73 and is fixedly connected to the other side wall of the accommodating space 421, the hinge block 73 is rotatably connected to the rotating shaft 74, and the rotating shaft 74 is transversely disposed.

Referring to fig. 7, a clamping block 75 extends from the lower end of the pressing plate 71 to a side close to the axis of the permeable pipe 42, an abdicating hole 422 for the clamping block 75 to pass through is correspondingly formed in the inner side wall of the accommodating space 421, and one end of the clamping block 75 far away from the pressing plate 71 penetrates through the abdicating hole 422 and extends to the inside of the permeable pipe 42.

Referring to fig. 7, the edge of the lower surface of the filter screen 53 is fixedly provided with the insertion block 72, the insertion block 72 is vertically arranged, when the filter screen 53 covers the opening of the permeable pipe 42, the insertion block 72 covers the abdicating hole 422, the insertion block 72 is correspondingly provided with a clamping groove 721 for inserting the clamping block 75, the clamping block 75 is provided with a first straight surface, the upper side wall of the clamping groove 721 is provided with a second straight surface, and when the clamping block 75 is clamped inside the clamping groove 721, the first straight surface and the second straight surface are attached to each other.

Referring to fig. 7, a torsion spring 76 capable of maintaining the clamping state of the clamping block 75 and the clamping slot 721 is disposed inside the accommodating space 421, the torsion spring 76 is sleeved outside the rotating shaft 74, and one torsion arm of the torsion spring 76 is fixedly connected with the pressing plate 71, and the other torsion arm is fixedly connected with the inner wall of the accommodating space 421.

Referring to fig. 7, a protrusion 711 is fixedly disposed on a side of the pressing plate 71 opposite to the hinge block 73, a pressing hole 423 through which the protrusion 711 passes is disposed on an outer side wall of the accommodating space 421, the protrusion 711 is pressed through the pressing hole 423, the protrusion 711 drives the pressing plate 71 to rotate around a rotation center thereof, and when a distance between an upper end of the pressing plate 71 and the water permeable pipe 42 is reduced, the lower end of the pressing plate 71 drives the fixture block 75 to move towards a side far away from the insertion block 72, so that the fixture block 75 is separated from the fixture groove 721.

Referring to fig. 7, the penetration structure 6 is disposed below the filter screen 53, and the penetration structure 6 includes a movable rod 63 and a sealing ring 64 disposed inside the water permeable pipe 42.

Referring to fig. 7, the movable rod 63 is vertical setting, the axis of movable rod 63 and the coincidence of the pipe 42 axis of permeating water, and the movable rod 63 external diameter is less than the internal diameter of the pipe 42 of permeating water, and the movable rod 63 can slide along the axis direction of the pipe 42 of permeating water, and the pipe 42 of permeating water is provided with the spacing inner ring 424 that prevents the movable rod 63 and deviate from in its lower extreme opening part, and movable rod 63 and spacing inner ring 424 sliding connection, spacing inner ring 424 have seted up a plurality of water holes of crossing.

Referring to fig. 7, a plug 65 is integrally formed at one end of the upper end of the movable rod 63, which is close to the filter screen 53, the plug 65 is arranged along the radial direction of the movable rod 63, the vertical section of the plug 65 is hemispherical, and the outer diameter of the plug 65 is smaller than the inner diameter of the permeable pipe 42.

Referring to fig. 7, an elastic member is disposed between the plug 65 and the inner limiting ring 424, the elastic member is a compression spring 66, one end of the compression spring 66 is fixedly connected with the plug 65, the other end of the compression spring 66 is fixedly connected with the inner limiting ring 424, and the compression spring 66 is sleeved outside the movable rod 63.

Referring to fig. 7, the sealing ring 64 is arranged along the radial direction of the permeable pipe 42, the sealing ring 64 and the inserting block 72 are integrally formed, the inner diameter of the sealing ring 64 is smaller than the inner diameter of the permeable pipe 42, the inner diameter of the sealing ring 64 is smaller than the outer diameter of the plug 65, when the compression spring 66 is in a natural state, the outer peripheral wall of the plug 65 abuts against the inner wall of the sealing ring 64, the plug 65 can be plugged at the opening of the sealing ring 64, at the moment, the upper end face of the plug 65 is in contact with the filter screen 53, the plug 65 is arranged into an arc surface at the contact end with the filter screen 53, the contact area between the plug 65 and the filter screen 53. The contact end of the sealing ring 64 with the plug 65 is provided with an inclined surface 641, and when the plug 65 plugs the opening of the sealing ring 64, the inclined surface 641 of the sealing ring 64 is tangent to the arc surface of the plug 65, so that the sealing performance between the plug 65 and the sealing ring 64 is improved.

The second embodiment is implemented according to the following principle: when the rainwater amount is large, the rainwater can permeate into the ground through the sand layer 51 after permeating into the sand layer 52, the water is primarily filtered in the sand layer 51 and the sand layer 52, and then is secondarily filtered through the filter screen 53, so that impurities entering the drainage channel 4 are reduced; when the permeated water enters the permeable holes 41, the permeated water acts on the plugs 65, the plugs 65 drive the movable rods 63 to move towards one side far away from the filter screen 53, so that the plugs 65 are separated from the sealing rings 64, the plugs 65 are relieved from plugging the sealing rings 64, the permeated water can enter the drainage channel 4 through the permeable pipes 42, and the accumulation of the water on the road surface is reduced; the water in the drainage channel 4 is blocked in the drainage channel 4 under the action of the plug 65, so that the overflow of the water in the drainage channel 4 is reduced.

EXAMPLE III

The difference between the third embodiment and the second embodiment is that, in conjunction with fig. 8 and 9, the water permeable pipe 42 is externally coated with a permeable cloth 61.

Referring to fig. 9 and 10, the permeable cloth 61 is compressed outside the water permeable pipe 42 by the sand layer 51 on the upper side, and the water passing through the sand layer 52 and the sand layer 51 can be filtered for the second time by providing the permeable cloth 61.

The third embodiment is implemented according to the following principle: when the rainfall is great, can permeate the below ground through grit layer 51 behind the rainwater infiltration sand bed 52, water carries out primary filtration at grit layer 51 and sand bed 52, carries out secondary filter through infiltration cloth 61, then carries out secondary filter through filter screen 53, reduces the inside impurity of entering drainage channel 4, the condition of less drainage channel 4's jam.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a afforestation drainage system, includes drainage shaft (11) and sets up in well lid (12) of drainage shaft (11), its characterized in that, drainage shaft (11) intercommunication has drainage channel (4), drainage channel (4) axis extension line and drainage shaft (11) axis intersect in a bit, and this point is located the axis of drainage shaft (11), supreme gravel layer (51), sand bed (52) have been laid in proper order down to the outside of drainage channel (4), drainage channel (4) are provided with a plurality of holes (41) of permeating water, and are a plurality of it sets up to permeate water hole (41) along drainage channel (4) axis direction equidistant, drainage channel (4) outside is provided with permeable structure (6) that supply moisture to get into.

2. A drainage system for landscaping as claimed in claim 1, wherein the permeable structure (6) includes a permeable cloth (61) wrapped around the exterior of the drainage channel (4), the permeable cloth (61) covering the water permeable holes (41).

3. A landscaping drainage system according to claim 2, wherein the side of the cloth (61) facing the drainage channel (4) is provided with an adhesive layer (62).

4. A drainage system for landscaping as claimed in claim 1, wherein the water permeable holes (41) are internally provided with water permeable pipes (42), the water permeable pipes (42) are internally provided with filter screens (53), and the water permeable pipes (42) and the water permeable holes (41) are in threaded connection.

5. A landscaping drainage system according to claim 4, wherein the permeable structure (6) comprises a movable rod (63) and a sealing ring (64) arranged inside the permeable pipe (42), the sealing ring (64) is arranged along the radial direction of the permeable pipe (42), the inner diameter of the sealing ring (64) is smaller than the inner diameter of the permeable pipe (42), the movable rod (63) is capable of sliding along the axial direction of the permeable pipe (42), the filtering net (53) is arranged on the side of the permeable pipe (42) close to the upper surface of the road, the axis of the movable rod (63) and the axis of the permeable pipe (42) coincide; one end of the movable rod (63) close to the filter screen (53) is provided with a plug (65), the plug (65) can be plugged at an opening of the sealing ring (64), and an elastic piece for keeping the contact state of the plug (65) and the sealing ring (64) is arranged inside the permeable pipe (42).

6. A drainage system for landscaping according to claim 5, wherein the side of the plug (65) facing the filter screen (53) is provided with a cambered surface, and the contact end of the sealing ring (64) and the plug (65) is provided with a slope (641).

7. A drainage system for landscaping as claimed in claim 5, wherein the filter screen (53) and the permeable tube (42) are removably connected by a connection structure (7).

8. A landscaping drainage system according to claim 7, wherein the connection structure (7) comprises a pressing plate (71) and an insertion block (72) arranged on the filter screen (53), the water permeable pipe (42) is provided with an accommodating space (421), a hinge block (73) is arranged in the middle of the pressing plate (71), the hinge block (73) is rotatably connected with the water permeable pipe (42) through a rotating shaft (74), a clamping block (75) is arranged on one side of the pressing plate (71) facing the insertion block (72), a clamping groove (721) is correspondingly arranged on the insertion block (72), and a torsion spring (76) capable of keeping the clamping state of the clamping block (75) and the clamping groove (721) is arranged in the accommodating space (421).

9. A drainage system for landscaping according to claim 8, wherein a protrusion (711) is disposed on a side of the pressing plate (71) facing the pressing hole (423), and the pressing hole (423) for the protrusion (711) to pass through is formed on a side wall of the accommodating space (421).

10. A landscaping drainage system according to claim 1, wherein the drainage well (11) is internally provided with a filter frame (2) having an upper end opening, the open end of the filter frame (2) facing the well lid (12); a lifting component (3) is arranged between the filter frame (2) and the well lid (12).