Street tree drainage and ventilation device

Abstract

The utility model discloses a street tree drainage and ventilation device which is arranged in a tree pit and comprises a water storage layer, a planting layer and a gravel layer which are laid in the tree pit from bottom to top, a grid net covers the top of the gravel layer, and the street tree drainage and ventilation device further comprises a first drainage and ventilation structure and a plurality of second drainage and ventilation structures. The first drainage and ventilation structure comprises a drainage base and a plurality of drainage and ventilation pipes connected with the drainage base, the drainage base is arranged in the water storage layer and provided with a plurality of drainage and ventilation holes, the second drainage and ventilation structure comprises a drainage pipe and a water seepage connector connected to the tail end of the drainage pipe, and the water seepage connector is arranged on the planting layer. The top end of the drainage pipe and the top end of the drainage vent pipe extend to the grid net. The first drainage and ventilation structure is arranged in the water storage layer, the drainage and ventilation holes are formed in the first drainage and ventilation structure, the tree pits are communicated with outside air through the drainage and ventilation holes, and when accumulated water is too much, redundant water can be pumped out through the drainage and ventilation pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of seedling planting, and in particular to a drainage and ventilation device for roadside trees. Background Art

[0002] At present, in the process of planting seedlings, early root cutting, heavy pruning, and nutrient solution are generally used to improve the survival rate of seedlings, as well as deep or shallow planting of seedlings to improve the air permeability and water permeability of the roots of seedlings. The depth of seedling planting is generally judged by the experience of the staff, and it is impossible to ensure good air permeability and water permeability of the roots of seedlings. Generally, the state of the seedling leaves and the dryness and wetness of the soil are used to judge whether the seedlings are drought-prone or flood-prone. This judgment is also based on the experience of the staff, with low accuracy, resulting in a low survival rate of large-scale seedling planting.

[0003] At present, the growth of trees is weak. At the same time, the growth habits of trees and the soil moisture conditions have an impact on the root depth. Trees have deeper roots in places with deep groundwater, loose soil and good air permeability, and shallower roots in places with shallow groundwater, dense soil and poor air permeability. Generally speaking, the root depth of a tree is 1-2m. At present, most urban roadside trees grow in places with deep groundwater, dense soil and poor air permeability. The root system is shallow and the drainage is poor. In the dry and high temperature season, the trees may even die. Utility Model Content

[0004] In order to solve at least one technical problem of the prior art, the utility model of the present invention provides a drainage and ventilation device for roadside trees.

[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is: a drainage and ventilation device for street trees, arranged in a tree hole, including an aquifer, a planting layer and a gravel layer laid in the tree hole from bottom to top, the top of the gravel layer is covered with a grid net, the drainage and ventilation device for street trees also includes a first drainage and ventilation structure and multiple second drainage and ventilation structures, the first drainage and ventilation structure includes a drainage base and multiple drainage and ventilation pipes connected to the drainage base, the drainage base is arranged in the aquifer, and the drainage base is provided with multiple drainage and ventilation holes, the second drainage and ventilation structure includes a drainage pipe and a water seepage joint connected to the end of the drainage pipe, the water seepage joint is arranged in the planting layer, the top of the drainage pipe and the top of the drainage and ventilation pipe extend to the grid net.

[0006] Furthermore, the drainage base is a rectangular frame formed by connecting multiple PVC pipes through multiple connecting elbows, and the PVC pipes are provided with multiple drainage holes.

[0007] Furthermore, the roadside tree drainage and ventilation device also includes non-woven fabric, and the non-woven fabric is wound around the PVC pipe.

[0008] Furthermore, the water seepage joint comprises a connection shell having a drainage cavity inside and a plurality of insertion rods arranged at the lower end of the connection shell, the connection shell is provided with a plurality of slit flow channels for water seepage to the planting layer, and the slit flow channels are connected with the drainage cavity;

[0009] The connecting shell is detachably connected to the drain pipe.

[0010] Furthermore, the connection shell is provided with an external thread, and the end of the drain pipe is provided with an internal thread matching the external thread.

[0011] Furthermore, the plug rod comprises N long strip-shaped plugs, the N plugs are fixed together along the length extension direction, and the angle between two adjacent plugs is 360° / N, wherein N≥3;

[0012] The top end of the insert at least extends to the lower end of the drainage cavity so that the gap flow channel is distributed between two adjacent inserts.

[0013] Furthermore, the seepage joint includes an upper connecting part and a lower connecting part which are connected as one body, the upper connecting part is connected to the drain pipe, the lower connecting part is conical, the upper end of the insertion rod is fixed to the outside of the lower connecting part, and the lower connecting part is provided with the slit flow channel.

[0014] Furthermore, the slit flow channel is in a long strip shape, and the slit flow channel extends along the length direction of the lower connecting portion.

[0015] Furthermore, the roadside tree drainage and ventilation device also includes a cover, which is detachably arranged on the top of the drainage pipe and the drainage and ventilation pipe.

[0016] Furthermore, the sealing cover includes a cover body and absorbent cotton, the cover body is provided with a retaining ring, the retaining ring and the outer edge of the cover body form a limiting groove, the drain pipe or the drain and air pipe is socketed in the limiting groove, the cover plate of the cover body is provided with a through hole, and the absorbent cotton is arranged in the through hole.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] The utility model is provided with a first drainage and ventilation structure in the aquifer, and the first drainage and ventilation structure is provided with drainage and ventilation holes. On the one hand, the tree hole can be connected with the outside air through the drainage and ventilation holes, which is beneficial to improve the air permeability of the tree hole; on the other hand, when there is too much water in the aquifer, the excess water can be gathered in the drainage base through the drainage and ventilation holes, and the excess water can be pumped out through the drainage and ventilation pipe. At the same time, when the water content of the aquifer is insufficient, water can be injected into the aquifer through the first drainage and ventilation structure;

[0019] The utility model is provided with a second drainage and ventilation structure in the planting layer. The second drainage and ventilation structure has a water seepage joint. When the planting layer lacks water, water can seep into the planting layer through the second drainage and ventilation structure, thereby avoiding diffusion waste caused by water seeping downward when supplying water from the surface to the vegetation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A cross-sectional view of a roadside tree drainage and ventilation device of the utility model is shown;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of the first water drainage and ventilation structure of the utility model is shown;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of the second drainage and ventilation structure of the utility model is shown;

[0023] Figure 4 A cross-sectional view showing a second drainage and ventilation structure of the utility model;

[0024] Figure 5 for Figure 1 Enlarged view of part A in the middle. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner. Therefore, they only show the structures related to the utility model. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0027] Reference Figures 1 to 5, a roadside tree drainage and ventilation device is provided, a roadside tree drainage and ventilation device, which is arranged in a tree hole, and includes an aquifer 1, a planting layer 2 and a gravel layer 3 laid in the tree hole from bottom to top, and the top of the gravel layer 3 is covered with a grid net 4, the roadside tree drainage and ventilation device also includes a first drainage and ventilation structure 5 and a plurality of second drainage and ventilation structures 6, the first drainage and ventilation structure 5 includes a drainage base 51 and a plurality of drainage and ventilation pipes 52 connected to the drainage base 51, the drainage base 51 is arranged in the aquifer 1, and the drainage base 51 is provided with a plurality of drainage and ventilation holes 510, the second drainage and ventilation structure 6 includes a drainage pipe 61 and a water seepage joint 62 connected to the end of the drainage pipe 61, the water seepage joint 62 is arranged in the planting layer 2, and the top of the drainage pipe 61 and the top of the drainage and ventilation pipe 52 extend to the grid net 4.

[0028] Furthermore, the drainage base 51 is a rectangular frame formed by connecting a plurality of PVC pipes through a plurality of connecting elbows, and a plurality of drainage vents 510 are provided on the PVC pipes.

[0029] In some embodiments, ventilation holes are also provided on the drainage and ventilation pipe 52. The roadside tree drainage and ventilation device further includes a non-woven fabric 53, which is wound around the PVC pipe and the drainage and ventilation pipe 52.

[0030] Furthermore, the seepage joint 62 is used to seep water into the vegetation layer 2. The seepage joint 62 includes a connecting shell 621 having a drainage cavity 6210 inside and a plurality of insertion rods 622 arranged at the lower end of the connecting shell 621. The connecting shell 621 is provided with a plurality of slit flow channels 620 for seeping water into the planting layer 2. The slit flow channels 620 are connected to the drainage cavity 6210.

[0031] The plurality of second drainage and ventilation structures 6 are inserted into the planting layer 2 through the insertion rods 622 and surround the roadside trees 7. Preferably, the plurality of second drainage and ventilation structures 6 have different lengths, so that the plurality of water seepage joints 62 are arranged in different heights in the planting layer 2, so as to better provide moisture for the roadside trees 7.

[0032] The connection housing 621 is detachably connected to the drain pipe 61. Optionally, an outer wall of the connection housing 621 is provided with an external thread, and the end of the drain pipe 61 is provided with an internal thread matching the external thread, and the connection housing 621 and the drain pipe 61 are connected by threads.

[0033] Furthermore, the outer wall of the connection housing 621 is provided with a limiting platform 5213 along the circumferential direction, and the outer diameter of the limiting platform 6213 is the same as the outer diameter of the drain pipe 61. The external thread is provided on the outer wall of the connection housing 621 located on the upper side of the limiting platform 5213, and the lower end of the drain pipe 61 abuts against the limiting platform 5213.

[0034] Further, the connection shell 621 includes an upper connection part 6211 and a lower connection part 6212 connected as one body, the upper connection part 6211 is cylindrical, the upper end of the upper connection part 6211 is connected to the drain pipe 61, and the lower end is connected to the lower connection part 6212. The lower connection part 6212 is conical, the maximum outer diameter of the lower connection part 6212 is not greater than the outer diameter of the upper connection part 6211, the inner cavities of the upper connection part 6211 and the lower connection part 6212 together constitute the above-mentioned drainage cavity 6210, and the lower connection part 6212 is provided with a slit flow channel 620.

[0035] The slit channel 620 is in a long strip shape, and the slit channel 620 extends along the length direction of the lower connecting portion 6212 .

[0036] Further, the plug rod 622 includes N long strip-shaped plug pieces 6220, which are fixed together along the length extension direction, and the angle between two adjacent plug pieces 6220 is 360° / N, where N≥3. Preferably, the plug piece 6220 is an acute triangle.

[0037] The top of the insert piece 6220 at least extends to the lower end of the drainage cavity 6210 , that is, the insert piece 6220 at least extends to the top of the lower connecting portion 6212 , so that the gap flow channel 620 is distributed between two adjacent insert pieces 6220 .

[0038] Furthermore, the roadside tree drainage and ventilation device also includes a cover 8 , which is detachably arranged on the top of the drainage pipe 61 and the drainage and ventilation pipe 52 .

[0039] Furthermore, the cover 8 includes a cover body 81 and absorbent cotton 82. The cover body 81 is provided with a retaining ring 810. The retaining ring 810 and the outer edge of the cover body 81 form a limiting groove. The drain pipe 61 or the drain air pipe 52 is inserted in the limiting groove. The cover plate of the cover body 81 is provided with a through hole, and the absorbent cotton 82 is arranged in the through hole.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the above embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A roadside tree drainage and ventilation device, arranged in a tree hole, comprising a water storage layer (1), a planting layer (2) and a gravel layer (3) laid in the tree hole from bottom to top, characterized in that: The top of the gravel layer (3) is covered with a grid net (4), and the roadside tree drainage and ventilation device also includes a first drainage and ventilation structure (5) and a plurality of second drainage and ventilation structures (6), wherein the first drainage and ventilation structure (5) includes a drainage base (51) and a plurality of drainage and ventilation pipes (52) connected to the drainage base (51), the drainage base (51) is arranged in the water storage layer (1), and the drainage base (51) is provided with a plurality of drainage and ventilation holes (510), and the second drainage and ventilation structure (6) includes a drainage pipe (61) and a water seepage joint (62) connected to the end of the drainage pipe (61), the water seepage joint (62) is arranged in the planting layer (2), and the top end of the drainage pipe (61) and the top end of the drainage and ventilation pipe (52) extend to the grid net (4).

2. The roadside tree drainage and ventilation device according to claim 1, characterized in that: The drainage base (51) is a rectangular frame formed by connecting a plurality of PVC pipes via a plurality of connecting elbows, and a plurality of drainage vents (510) are provided on the PVC pipes.

3. The roadside tree drainage and ventilation device according to claim 2, characterized in that: The roadside tree drainage and ventilation device also includes a non-woven fabric (53), and the non-woven fabric (53) is wound around the PVC pipe.

4. The roadside tree drainage and ventilation device according to claim 1, characterized in that: The water seepage joint (62) comprises a connection shell (621) having a drainage cavity (6210) therein and a plurality of insertion rods (622) arranged at the lower end of the connection shell (621); the connection shell (621) is provided with a plurality of slit flow channels (620) for seeping water into the planting layer (2); the slit flow channels (620) are in communication with the drainage cavity (6210); The connection housing (621) is detachably connected to the drain pipe (61).

5. The roadside tree drainage and ventilation device as claimed in claim 4, characterized in that: The connection housing (621) is provided with an external thread, and the end of the drain pipe (61) is provided with an internal thread matching the external thread.

6. The roadside tree drainage and ventilation device according to claim 4, characterized in that: The insertion rod (622) comprises N long strip-shaped insertion pieces (6220), the N insertion pieces (6220) are fixed together along the length extension direction, and the angle between two adjacent insertion pieces (6220) is 360° / N, wherein N≥3; The top end of the insert (6220) at least extends to the lower end of the drainage cavity (6210) so that the slit flow channel (620) is distributed between two adjacent inserts (6220).

7. The roadside tree drainage and ventilation device as claimed in claim 4, characterized in that: The seepage joint (62) comprises an upper connecting portion (6211) and a lower connecting portion (6212) which are connected as one body, the upper connecting portion (6211) is connected to the drainage pipe (61), the lower connecting portion (6212) is conical, the upper end of the insertion rod (622) is fixed to the outside of the lower connecting portion (6212), and the lower connecting portion (6212) is provided with the slit flow channel (620).

8. The roadside tree drainage and ventilation device according to claim 7, characterized in that: The slit flow channel (620) is in the shape of an elongated strip, and the slit flow channel (620) extends along the length direction of the lower connecting portion (6212).

9. The roadside tree drainage and ventilation device according to claim 1, characterized in that: The roadside tree drainage and ventilation device further comprises a cover (8), wherein the cover (8) is detachably arranged on the top of the drainage pipe (61) and the drainage and ventilation pipe (52).

10. The roadside tree drainage and ventilation device according to claim 9, characterized in that: The sealing cover (8) comprises a cover body (81) and absorbent cotton (82); the cover body (81) is provided with a retaining ring (810); the retaining ring (810) and the outer edge of the cover body (81) form a limiting groove; the drainage pipe (61) or the drainage air-permeable pipe (52) is inserted into the limiting groove; the cover plate of the cover body (81) is provided with a through hole; the absorbent cotton (82) is arranged in the through hole.

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