Construction device and construction method of border tree pool

Abstract

The invention relates to a construction device and a construction method for a border tree pool. The construction device comprises a mounting part, the extrusion plate is arranged at the side part of the mounting piece; the first driving part is connected with the extrusion plate through the first transmission assembly so as to drive the extrusion plate to move in the direction close to or away from the mounting part; and the second transmission assembly is arranged on the mounting piece, and the second driving piece drives the mounting piece to rotate along the axis through the second transmission assembly. The first driving part drives the extrusion plate to move through the first transmission assembly to repeatedly extrude the inner wall of the planting pit, and after the inner wall of the planting pit in one direction is extruded, the second driving part drives the mounting part and the extrusion plate to rotate through the second transmission assembly so as to extrude the position which is not covered by the extrusion plate; the plant root system can grow downwards by utilizing the water taxis of the plant root system, so that the growth direction of the plant root system is controlled.

Description

Technical Field

[0001] This disclosure relates to the field of roadside tree construction technology, specifically to a construction device and method for roadside tree pits. Background Technology

[0002] Street trees are an important part of municipal greening, serving a range of functions such as beautifying city roads, reducing noise, purifying the air, and providing shade. After the street trees are planted, municipal workers install gratings above the tree pits. However, the growth direction of the street tree roots is difficult to control, causing their extensive root systems to damage the sidewalks, resulting in phenomena such as pavement arching and broken paving stones. This not only affects the overall appearance of city roads but also greatly hinders pedestrian travel, easily causing pedestrians to fall, especially posing a significant threat to the travel of people with disabilities. Furthermore, this damage greatly increases the difficulty and cost of maintenance and repair for municipal departments on sidewalks. Summary of the Invention

[0003] The purpose of this disclosure is to provide a construction device and method for tree pits for roadside trees, which can solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this disclosure provides a construction device for tree pits of roadside trees, comprising: an installation component; an extrusion plate disposed on the side of the installation component; a first driving component and a first transmission assembly, both the first driving component and the first transmission assembly being disposed on the installation component, the first driving component being connected to the extrusion plate through the first transmission assembly to drive the extrusion plate to move towards and away from the installation component; a second driving component and a second transmission assembly, the second transmission assembly being disposed on the installation component, the second driving component driving the installation component to rotate along an axis through the second transmission assembly.

[0005] Optionally, the first transmission assembly includes a first transmission frame and a linkage mechanism. The mounting component includes a mounting rod, and the first driving component includes a telescopic mechanism. One end of the first transmission frame is connected to the first driving component, and the other end is connected to the linkage mechanism. The linkage mechanism is connected to the extrusion plate. The first transmission frame is sleeved on the mounting rod and can reciprocate along the direction of the extension of the mounting rod, so as to drive the extrusion plate to move towards and away from the mounting component through the linkage mechanism.

[0006] Optionally, the linkage mechanism includes a first linkage and a second linkage. The mounting component further includes a fixing plate disposed on the mounting rod at the end opposite to the first driving member. The first transmission frame is provided with a mounting ring at the end near the fixing plate. One end of the first linkage is rotatably connected to the outer side of the fixing plate, and the other end is rotatably connected to the side of the extrusion plate and rotatably connected to one end of the second linkage. The other end of the second linkage is rotatably connected to the outer side of the mounting ring. A limiting member is provided at the end of the first linkage connected to the extrusion plate. A gap is provided between the limiting member and the extrusion plate to limit the angle of rotation of the extrusion plate.

[0007] Optionally, the first transmission assembly further includes a second transmission frame sleeved on the mounting rod. The first driving member is connected to the first transmission frame through the second transmission frame. One end of the second transmission frame is connected to the first driving member, and the other end is sleeved on the first transmission frame. The first transmission frame further includes a connecting pipe and a limiting ring. The connecting pipe is disposed at the end of the mounting ring away from the fixed plate, and the limiting ring is disposed at the end of the connecting pipe away from the mounting ring. The diameters of the mounting ring and the limiting ring are both larger than the diameter of the connecting pipe. The end of the second transmission frame is sleeved on the connecting pipe, and the inner diameter of the end of the second transmission frame is smaller than the outer diameter of the mounting ring and the limiting ring.

[0008] Optionally, the first transmission assembly further includes a compression spring, which is sleeved on the connecting pipe, with one end of the compression spring abutting against the mounting ring and the other end abutting against the second transmission frame.

[0009] Optionally, the second driving component includes a drive motor, and the second transmission assembly includes a driving gear disposed on the driving end of the drive motor and a driven gear meshing with the driving gear and perpendicularly connected to the mounting component. The construction device also includes a mounting plate, the drive motor is disposed on the mounting plate, one end of the mounting plate is rotatably connected to the mounting component, and the other end is used to connect to the mobile device.

[0010] Optionally, the extrusion plate is configured as an arc-shaped plate for fitting against the inner wall of the tree pit.

[0011] Optionally, the construction device further includes an adjustment mechanism disposed on the mounting plate to adjust the position of the mounting component when the mobile device is not centered.

[0012] Optionally, the mounting plate is provided with multiple sliding grooves extending in multiple directions along the horizontal direction, and the multiple sliding grooves intersect at a point. The adjustment mechanism includes a mounting arm and an adjustment spring. One end of the mounting arm is used to connect with the mobile device, and the other end is located at the intersection of the multiple sliding grooves and is slidably connected with the sliding grooves. Each sliding groove is provided with an adjustment spring extending in the same direction as the sliding groove, and one end of the adjustment spring is connected to the end of the mounting arm located in the sliding groove.

[0013] The second objective of this disclosure is to provide a construction method for tree pits for roadside trees, and the aforementioned construction device for tree pits for roadside trees, the construction method comprising the following steps: excavating a planting pit using an excavation device; moving the construction device into the planting pit using a mobile device to compress the inner wall of the planting pit; placing a sapling with its root system encased in a shell into the planting pit, the bottom of the shell being open; filling the space between the shell and the inner wall of the planting pit with a mixture of fly ash and lime, and compacting it layer by layer.

[0014] Through the above technical solution, the side of the mounting component is provided with a pressing plate. For example, when the mounting component is placed vertically during use, the first driving component drives the pressing plate to move towards and away from the mounting component through the first transmission component, that is, to move repeatedly towards and away from the inner wall of the planting pit, repeatedly pressing the inner wall of the planting pit. After the inner wall of the planting pit in one direction is pressed, the second driving component drives the mounting component and the pressing plate to rotate through the second transmission component, thereby adjusting the position of the pressing plate to press the area not covered by the pressing plate until the inner wall of the planting pit is completely compacted to form a dense plane. On the one hand, the inner wall of the planting pit has a high density after compaction, making it difficult for the plant roots to grow in all directions. On the other hand, it can isolate water. Utilizing the hydrotropism of plant roots, that is, when the soil moisture is unevenly distributed, the plant roots will grow towards the direction of higher soil moisture, thereby causing the plant roots to grow downwards, thus achieving control over the growth direction of the plant roots.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural schematic diagram of the construction device from the first angle in this disclosure; Figure 2 This is a structural schematic diagram of the construction device from the second angle in this disclosure; Figure 3This is a structural schematic diagram of the construction device from the third angle in this disclosure; Figure 4 This is a structural schematic diagram of the construction device from the fourth angle in this disclosure; Figure 5 This is a schematic diagram of the connection between the linkage mechanism and the extrusion plate in this disclosure; Figure 6 This is a diagram showing the working status of the construction equipment in this disclosure; Figure 7 This is a top view of the adjusting mechanism in this disclosure; Figure 8 This is a schematic diagram showing the seedlings after they have been loaded with weight in this publication.

[0017] Explanation of reference numerals in the attached figures 1. First driving component; 2. First transmission assembly; 21. Second transmission frame; 22. First transmission frame; 221. Limiting ring; 222. Connecting pipe; 223. Mounting ring; 23. Compression spring; 24. Linkage mechanism; 241. First connecting rod; 242. Second connecting rod; 3. Extrusion plate; 4. Second transmission assembly; 41. Driven gear; 42. Driving gear; 5. Mounting plate; 51. Slide groove; 6. Mounting component; 61. Mounting rod; 62. Fixing plate; 7. Second driving component; 8. Adjustment mechanism; 81. Mounting arm; 82. Adjustment spring; 9. Planting pit; 10. Seedling; 11. Outer shell; 12. Limiting component. Detailed Implementation

[0018] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0019] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" generally refer to the upper, lower, top, and bottom of the corresponding component in the direction of gravity when in use, while "inner" and "outer" refer to the inner and outer contours relative to the component or structure itself. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same element.

[0020] like Figure 1-4As shown, this disclosure provides a construction device for tree pits of roadside trees, including: a mounting component 6; an extrusion plate 3 disposed on the side of the mounting component 6; a first driving component 1 and a first transmission assembly 2, both of which are disposed on the mounting component 6, the first driving component 1 being connected to the extrusion plate 3 through the first transmission assembly 2 to drive the extrusion plate 3 to move towards and away from the mounting component 6; a second driving component 7 and a second transmission assembly 4, the second transmission assembly 4 being disposed on the mounting component 6, the second driving component 7 driving the mounting component 6 to rotate along the axis through the second transmission assembly 4.

[0021] Through the above technical solution, the side of the mounting component 6 is provided with a pressing plate 3. For example, when in use, the mounting component 6 is placed vertically. The first driving component 1 drives the pressing plate 3 to move towards and away from the mounting component 6 through the first transmission component 2, that is, to move repeatedly towards and away from the inner wall of the planting pit 9, and to repeatedly press the inner wall of the planting pit 9. After the inner wall of the planting pit 9 in one direction is pressed, the second driving component 7 drives the mounting component 6 and the pressing plate 3 to rotate through the second transmission component 4, thereby adjusting the position of the pressing plate 3 to press the area not covered by the pressing plate 3 until the inner wall of the planting pit 9 is completely compacted to form a dense plane. On the one hand, the density of the inner wall of the planting pit 9 is large after compaction, making it difficult for the plant roots to grow in all directions. On the other hand, it can isolate water. By utilizing the hydrotropism of plant roots, that is, when the soil moisture is unevenly distributed, the plant roots will grow towards the direction of higher soil moisture, thereby making the plant roots grow downwards, thus achieving control over the growth direction of the plant roots. The use of mechanical compaction instead of concrete pouring or plastic casting to construct the support structure reduces material costs and avoids the labor and time costs associated with waiting for concrete to harden. Furthermore, the more compact internal structure of the tree pits reduces water accumulation and the growth of weeds and other debris, making subsequent cleaning and maintenance simpler and faster.

[0022] As an optional implementation, the first transmission assembly 2 includes a first transmission frame 22 and a linkage mechanism 24. The mounting component 6 includes a mounting rod 61, and the first driving component 1 includes a telescopic mechanism. One end of the first transmission frame 22 is connected to the first driving component 1, and the other end is connected to the linkage mechanism 24. The linkage mechanism 24 is connected to the extrusion plate 3. The first transmission frame 22 is sleeved on the mounting rod 61 and can reciprocate along the direction of the extension of the mounting rod 61, so as to drive the extrusion plate 3 to move towards and away from the mounting component 6 through the linkage mechanism 24. For example, the telescopic mechanism is a telescopic cylinder or an electric telescopic rod. The telescopic direction of the telescopic mechanism extends in the same direction as the mounting rod 61. The telescopic mechanism drives the first transmission frame 22 to move up and down along the mounting rod 61, thereby driving the linkage mechanism 24 to move inward and outward, and then driving the extrusion plate 3 to move inward and outward, repeatedly extruding the inner wall of the planting pit 9.

[0023] Optionally, such as Figure 1-5 As shown, the linkage mechanism 24 includes a first link 241 and a second link 242. The mounting component 6 also includes a fixing plate 62 disposed on the end of the mounting rod 61 away from the first driving component 1. The first transmission frame 22 is provided with a mounting ring 223 at one end near the fixing plate 62. One end of the first link 241 is rotatably connected to the outside of the fixing plate 62, and the other end is rotatably connected to the side of the extrusion plate 3 and rotatably connected to one end of the second link 242. The other end of the second link 242 is rotatably connected to the outside of the mounting ring 223. A limiting component 12 is provided at the end of the first link 241 connected to the extrusion plate 3. A gap is provided between the limiting component 12 and the extrusion plate 3 to limit the angle of rotation of the extrusion plate 3. That is, the extrusion plate 3 is connected at the junction of the first connecting rod 241 and the second connecting rod 242. There is an angle between the first connecting rod 241 and the second connecting rod 242. When the first transmission frame 22 presses the second connecting rod 242 downward, the second connecting rod 242 drives the first connecting rod 241 to move downward, and then to move outward, driving the extrusion plate 3 to move outward. Since the first connecting rod 241 has only one point of rotational connection with the extrusion plate 3, the extrusion plate 3 will inevitably rotate along the connection point, which will cause the angle of inclination of the extrusion plate 3 to be too large, and it will not be able to make good contact with the inner wall of the planting pit 9. Therefore, a limiting member 12 is set to limit the angle of rotation of the extrusion plate 3. For example, the limiting member 12 is constructed as a limiting plate in a vertical state when the first connecting rod 241 moves outward. The two ends of the limiting plate extend beyond the ends of the first connecting rod 241 to support the extrusion plate 3. There is a gap between the limiting member 12 and the extrusion plate 3, which allows for fine adjustment of the angle of the extrusion plate 3, so that the extrusion plate 3 fits more closely with the inner wall of the planting pit 9.

[0024] Optionally, the first transmission assembly 2 further includes a second transmission frame 21 sleeved on the mounting rod 61. The first driving member 1 is connected to the first transmission frame 22 through the second transmission frame 21. One end of the second transmission frame 21 is connected to the first driving member 1, and the other end is sleeved on the first transmission frame 22. The first transmission frame 22 further includes a connecting pipe 222 and a limiting ring 221. The connecting pipe 222 is located at the end of the mounting ring 223 facing away from the fixed plate 62, and the limiting ring 221 is located at the end of the connecting pipe 222 facing away from the mounting ring 223. The diameters of the mounting ring 223 and the limiting ring 221 are both larger than the diameter of the connecting pipe 222. The end of the second transmission frame 21 is sleeved on... The second transmission frame 21 is connected to the connecting pipe 222 and its inner diameter is smaller than the outer diameter of the mounting ring 223 and the limiting ring 221. The second transmission frame 21 is connected to the first transmission frame 22 and drives the first transmission frame 22 to move up and down. The second transmission frame 21 can shorten the length of the telescopic mechanism and reduce the risk of the telescopic mechanism breaking. When the second transmission frame 21 moves downward, the part of the second transmission frame 21 that is sleeved on the connecting pipe 222 abuts against the mounting ring 223, thereby driving the first transmission frame 22 to move downward. When the second transmission frame 21 moves upward and resets, the end of the second transmission frame 21 abuts against the limiting ring 221, thereby driving the first transmission frame 22 to move upward.

[0025] Optionally, the first transmission assembly 2 also includes a compression spring 23, which is sleeved on the connecting pipe 222. One end of the compression spring 23 abuts against the mounting ring 223, and the other end abuts against the second transmission frame 21. The compression spring 23 plays a buffering role to prevent the second transmission frame 21 from directly contacting the first transmission frame 22 when it moves downward. This is because the second transmission frame 21 needs to drive the extrusion plate 3 to extrude force against the inner wall of the planting pit 9 when it moves downward, which is relatively large. The compression spring 23 is provided to prevent damage to the first transmission frame 22.

[0026] As an optional implementation, the second driving component 7 includes a drive motor, and the second transmission assembly 4 includes a drive gear 42 disposed on the drive end of the drive motor and a driven gear 41 meshing with the drive gear 42 and perpendicularly connected to the mounting component 6. When the extrusion plate 3 needs to adjust its angle, the drive motor drives the driven gear 41 to rotate through the drive gear 42, thereby driving the mounting rod 61 to rotate. The construction device also includes a mounting plate 5, on which the drive motor is disposed. One end of the mounting plate 5 is rotatably connected to the mounting component 6, and the other end is used to connect to the mobile device. The driven gear 41 is disposed at the end of the mounting component 6 to avoid affecting the movement of the first transmission assembly 2. To save space, the telescopic mechanism can pass through the driven gear 41 and connect to the second transmission frame 21, rotating synchronously with the driven gear 41. The drive motor is mounted on the mounting plate 5, and the mounting plate 5 is connected to the mobile device, for example, an excavator. The mounting plate 5 is connected to the drive arm of the excavator, and the device is moved into the planting pit 9 by the excavator.

[0027] Optionally, such as Figure 6-7 As shown, the construction device also includes an adjustment mechanism 8, which is mounted on the mounting plate 5 to adjust the position of the mounting component 6 when the mobile device is not centered. In some special positions, such as corner positions, the mobile device cannot completely place the construction device into the center of the planting pit 9. At this time, it is necessary to manually use the adjustment mechanism 8 to adjust the position of the construction device without changing the position of the mobile device, so that the construction device is located in the center of the planting pit 9.

[0028] Optionally, the mounting plate 5 is provided with multiple grooves 51 extending horizontally in multiple directions. The multiple grooves 51 intersect at a point. The adjustment mechanism 8 includes a mounting arm 81 and an adjustment spring 82. One end of the mounting arm 81 is used to connect to the mobile device, and the other end is located at the intersection of the multiple grooves 51 and is slidably connected to the grooves 51. Each groove 51 is provided with an adjustment spring 82 extending in the same direction as the groove 51. One end of the adjustment spring 82 is connected to the end of the mounting arm 81 located in the groove 51. The mounting arm 81 is connected to the mobile device, that is, the mounting arm 81 is fixed at this time. When the construction device is not in the center of the planting pit 9, the installation part 6 is manually dragged to move the mounting plate 5 along the groove 51 until it moves to the center of the planting pit 9. When the extrusion work is completed, the mobile device lifts the construction device, and the mounting plate 5 is reset under the action of the adjustment spring 82. For example, there are two grooves 51, and the two grooves 51 intersect perpendicularly, so that the construction device can be adjusted in four directions.

[0029] As an alternative implementation, the extrusion plate 3 is constructed as an arc-shaped plate for fitting against the inner wall of the tree pit. The tree pit is generally circular, and constructing the extrusion plate 3 as an arc-shaped plate makes it easier to fit against the inner wall of the tree pit. For example, multiple extrusion plates 3 can be provided along the circumference of the mounting rod 61 to increase the extrusion area.

[0030] like Figure 8As shown, the second objective of this disclosure is to provide a construction method for tree pits for roadside trees, using the aforementioned construction device. The construction method includes the following steps: excavating a planting pit 9 using an excavating device; moving the construction device into the planting pit 9 using a mobile device to compress the inner wall of the planting pit 9; placing a sapling 10 with its root system encased in a shell 11, the bottom of which is open; filling the space between the shell 11 and the inner wall of the planting pit 9 with a mixture of fly ash and lime, and compacting it layer by layer. The outer shell 11 encasing the roots of the sapling 10 effectively controls the growth direction of the roots during planting, preventing them from spreading outwards and damaging the road surface. Meanwhile, filling with a mixture of fly ash and lime can further inhibit the lateral expansion of the root system, play a good isolation role, and also build a support structure to fill the gap between the outer shell 11 and the inner wall of the planting pit 9. The ratio of fly ash to lime is between 2:1 and 10:1. Using fly ash as a filling material not only helps with resource recycling, but also the application of this industrial waste is in line with the concept of sustainable development and reduces environmental pollution.

[0031] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0032] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0033] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A construction device for tree pits for roadside trees, characterized in that, include: Installation components; An extrusion plate is disposed on the side of the mounting component; A first driving component and a first transmission assembly are both disposed on the mounting component. The first driving component is connected to the extrusion plate through the first transmission assembly to drive the extrusion plate to move towards and away from the mounting component. A second driving component and a second transmission assembly are provided. The second transmission assembly is disposed on the mounting component, and the second driving component drives the mounting component to rotate along the axis through the second transmission assembly.

2. The construction device for tree pits for roadside trees according to claim 1, characterized in that, The first transmission assembly includes a first transmission frame and a linkage mechanism. The mounting component includes a mounting rod. The first driving component includes a telescopic mechanism. One end of the first transmission frame is connected to the first driving component, and the other end is connected to the linkage mechanism. The linkage mechanism is connected to the extrusion plate. The first transmission frame is sleeved on the mounting rod and can reciprocate along the direction of the extension of the mounting rod, so as to drive the extrusion plate to move towards and away from the mounting component through the linkage mechanism.

3. The construction device for tree pits for roadside trees according to claim 2, characterized in that, The linkage mechanism includes a first linkage and a second linkage. The mounting component further includes a fixing plate disposed on the mounting rod at the end opposite to the first driving component. The first transmission frame is provided with a mounting ring at the end near the fixing plate. One end of the first linkage is rotatably connected to the outer side of the fixing plate, and the other end is rotatably connected to the side of the extrusion plate and rotatably connected to one end of the second linkage. The other end of the second linkage is rotatably connected to the outer side of the mounting ring. A limiting member is provided at the end of the first linkage connected to the extrusion plate. A gap is provided between the limiting member and the extrusion plate to limit the angle of rotation of the extrusion plate.

4. The construction device for tree pits for roadside trees according to claim 3, characterized in that, The first transmission assembly further includes a second transmission frame sleeved on the mounting rod. The first driving member is connected to the first transmission frame through the second transmission frame. One end of the second transmission frame is connected to the first driving member, and the other end is sleeved on the first transmission frame. The first transmission frame further includes a connecting pipe and a limiting ring. The connecting pipe is disposed at the end of the mounting ring away from the fixed plate, and the limiting ring is disposed at the end of the connecting pipe away from the mounting ring. The diameters of the mounting ring and the limiting ring are both larger than the diameter of the connecting pipe. The end of the second transmission frame is sleeved on the connecting pipe, and the inner diameter of the end of the second transmission frame is smaller than the outer diameter of the mounting ring and the limiting ring.

5. The construction device for tree pits for roadside trees according to claim 4, characterized in that, The first transmission assembly also includes a compression spring, which is sleeved on the connecting pipe. One end of the compression spring abuts against the mounting ring, and the other end abuts against the second transmission frame.

6. The construction device for tree pits for roadside trees according to claim 1, characterized in that, The second driving component includes a drive motor, and the second transmission assembly includes a driving gear disposed on the driving end of the drive motor and a driven gear meshing with the driving gear and perpendicularly connected to the mounting component. The construction device also includes a mounting plate, the drive motor is disposed on the mounting plate, one end of the mounting plate is rotatably connected to the mounting component, and the other end is used to connect to the mobile device.

7. The construction device for tree pits for roadside trees according to claim 1, characterized in that, The extrusion plate is constructed as an arc-shaped plate for fitting against the inner wall of the tree pit.

8. The construction device for tree pits for roadside trees according to claim 6, characterized in that, The construction device also includes an adjustment mechanism disposed on the mounting plate to adjust the position of the mounting component when the mobile device is not centered.

9. The construction device for tree pits for roadside trees according to claim 8, characterized in that, The mounting plate is provided with multiple horizontal grooves extending in multiple directions, and the multiple grooves intersect at a point. The adjustment mechanism includes a mounting arm and an adjustment spring. One end of the mounting arm is used to connect to the mobile device, and the other end is located at the intersection of the multiple grooves and is slidably connected to the groove. Each groove is provided with an adjustment spring extending in the same direction as the groove, and one end of the adjustment spring is connected to the end of the mounting arm located in the groove.

10. A method for constructing tree pits for roadside trees, characterized in that, The construction device for the tree pits of roadside trees according to any one of claims 1-9, the construction method includes the following steps: Planting pits were dug using excavation equipment; The construction device is moved into the planting pit by a mobile device to compress the inner wall of the planting pit; The seedling with its root system encased in a shell is placed in the planting pit, the bottom of which is open. A mixture of fly ash and lime is filled between the outer shell and the inner wall of the planting pit, and then compacted layer by layer.

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