A tree planting pit digging device for landscape gardening

By introducing a screw conveyor, pressure sensor, and soil retaining mechanism into the tree planting pit excavation equipment, the problems of easy equipment damage and soil splashing were solved, achieving stable excavation and efficient planting pit excavation.

CN117063668BActive Publication Date: 2025-10-28CITY CONSTR GARDENS DESIGN INST CO LTD +1
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202311048309.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2023-08-16
Filing Date
2023-08-21
Publication Date
2025-10-28
Estimated Expiration
2043-08-21

AI Technical Summary

Technical Problem

Existing tree planting pit excavation equipment is easily damaged when it encounters hard objects, and soil splashes during the excavation process, resulting in poor performance.

Method used

A tree planting pit excavation device for landscape gardening was designed, which adopts a screw auger, telescopic component, pressure sensor and soil retaining mechanism. The screw auger makes contact with the soil to excavate the planting pit, the pressure sensor detects hard objects, the water delivery mechanism moistens the soil, and the soil retaining mechanism prevents soil from splashing.

Benefits of technology

It effectively prevents the auger drill from being damaged by hard objects, extends the equipment's lifespan, maintains stability during excavation, prevents soil splashing, and improves excavation efficiency and subsequent planting results.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117063668B_ABST
    Figure CN117063668B_ABST
Patent Text Reader

Abstract

This invention relates to the field of landscaping technology, and more particularly to a tree planting pit excavation device for landscape gardens. The device includes a base, a telescopic component on the top outer wall of the base, and a lifting plate at the telescopic end of the telescopic component. The outer wall of the lifting plate has an opening, and a fixed cylinder is movably disposed within the opening. A driving component is fixedly disposed within the fixed cylinder, and a auger drill is disposed at the driving end of the driving component. This invention can detect the downward pressure applied to the soil by the auger drill during excavation. When the pressure sensor detects pressure exceeding the normal value, it indicates that the auger drill has encountered hard objects such as rocks below. At this time, the telescopic component can be stopped in time, effectively preventing the auger drill from further descending and causing damage, thus improving safety and extending the equipment's service life. The soil-retaining mechanism can also block the soil excavated by the auger drill, effectively preventing the excavated soil from splashing in all directions, resulting in better performance.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of landscaping technology, and in particular to a tree planting pit excavation device for landscape gardening. Background Technology

[0002] In the process of landscaping, digging planting pits is an essential step. In addition to manual digging, mechanical digging equipment can also be used to dig planting pits, which can effectively improve digging efficiency.

[0003] Currently, existing excavation equipment still has certain shortcomings. During the excavation process, the drill bit is usually moved down directly to dig. When encountering obstacles such as hard rocks, the drill bit is easily damaged. In addition, soil will also be splashed around during the excavation process, resulting in poor performance. Therefore, there is an urgent need to design a tree planting pit excavation device for landscape gardening to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the deficiencies in the existing technology by proposing a tree planting pit excavation device for landscape gardening.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tree planting pit excavation device for landscape gardening includes a base. The top outer wall of the base is provided with a telescopic component, and the telescopic end of the telescopic component is provided with a lifting plate. The outer wall of the lifting plate has a movable opening, and a fixed cylinder is movably disposed within the movable opening. A driving component is fixedly disposed within the fixed cylinder, and a screw conveyor is disposed at the driving end of the driving component. The inner wall of the movable opening also has an annular groove. The outer wall of the fixed cylinder has side plates evenly spaced in a ring, and the side plates are located within the annular groove. The top outer wall of the side plates is provided with a limit rod, and the limit rod passes through the lifting plate. The top inner wall of the annular groove is also provided with a pressure sensor. The top outer wall of the base is provided with a vertical rod. The outer wall of the lifting plate has a through hole, and the vertical rod passes through the through hole. The bottom outer wall of the base also has a fixed opening, and the screw conveyor is located within the fixed opening. The bottom outer wall of the base is also provided with casters. The device further includes:

[0007] A water supply mechanism, which is mounted on a lifting plate, is used to supply water to the auger drill.

[0008] A soil retaining mechanism is provided on the outside of the auger drill to block soil that splashes outwards during digging.

[0009] A limiting mechanism is provided in the base to limit the position of the base.

[0010] As a further embodiment of the present invention: the water conveying mechanism includes a water tank disposed at the top of the upright, the bottom outer wall of the water tank is connected to a water guide pipe, and a control valve is disposed on the outside of the water guide pipe. A sleeve is sleeved on the outside of the auger drill, and the water guide pipe and the sleeve are connected. A drainage channel is opened at the bottom end of the auger drill, and a connecting channel connected to the drainage channel is opened on one side of the auger drill, and the connecting channel is located in the sleeve.

[0011] As a further embodiment of the present invention: the retaining mechanism includes a cover located in the fixed opening, and the cover is located outside the auger drill. The top of the cover is provided with movable rods that are evenly distributed in a ring, and the movable rods pass through the lifting plate. The top of the movable rod is provided with a baffle, and the bottom outer wall of the baffle is provided with support rods that are evenly distributed in a ring.

[0012] As a further embodiment of the present invention: the inner wall of the cover is also provided with a hopper, and the hopper is located on the outside of the auger drill.

[0013] As a further embodiment of the present invention: both the telescopic component and the driving component are connected to a switch via wires, and the switch is electrically connected to a controller, and the controller and the pressure sensor are electrically connected.

[0014] As a further embodiment of the present invention: the limiting mechanism includes a limiting plate, and limiting openings are provided on both sides of the top outer wall of the base, and the limiting plate is movably disposed in the limiting openings. The outer wall of the limiting plate is provided with a rubber sleeve, and the rubber sleeve and the inner wall of the limiting opening are in contact. The top outer wall of the limiting plate is provided with a handle.

[0015] As a further embodiment of the present invention, the bottom outer wall of the limiting plate is also provided with equally spaced ground stakes.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention provides a tree planting pit excavation device for landscape gardening. When excavating a planting pit, the base can be moved above the pit to be excavated. Then, the drive unit can rotate the auger drill, and simultaneously, the telescopic component can move the lifting plate downwards at a uniform speed. During the movement, the rotating auger drill contacts the soil, thus excavating the planting pit. During the excavation, the fixed cylinder moves upwards in the movable opening, causing one side plate of the fixed cylinder to move upwards in the annular groove. Under the limiting action of the limiting rod, the vertical lifting of the fixed cylinder is ensured, ensuring the stability of the auger drill during excavation. When the side plate moves upwards, it can contact the pressure sensor, thereby detecting the downward pressure applied to the soil by the auger drill during excavation. When the pressure sensor detects that the pressure exceeds the normal range... The value indicates that the auger has encountered hard objects such as rocks below it. In this case, the extension and retraction of the telescopic components can be stopped in time, effectively preventing the auger from moving further down and causing damage. This makes it safer to use and also extends the service life of the equipment. Furthermore, when the soil being drilled is relatively dry and compacted, making it difficult to excavate, water can be supplied to the auger through the water supply mechanism. The water will then drain from the bottom of the auger to moisten the soil, making the compacted soil looser and easier to excavate. Moreover, during the excavation process, the soil retaining mechanism can also block the soil excavated by the auger, effectively preventing the excavated soil from splashing in all directions and making it easier to backfill when planting trees later. The overall effect is better. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of a tree planting pit excavation device for landscape architecture provided in an embodiment of the present invention;

[0019] Figure 2 This is an enlarged structural schematic diagram of the water conveying mechanism of a tree planting pit excavation device for landscape architecture, provided in an embodiment of the present invention.

[0020] Figure 3 This is an enlarged structural schematic diagram of a screw conveyor for excavating tree planting pits in landscape gardens, provided in an embodiment of the present invention.

[0021] Figure 4 This is an enlarged structural diagram of the retaining mechanism of a tree planting pit excavation device for landscape architecture, provided in an embodiment of the present invention.

[0022] Figure 5 This is an enlarged structural diagram of the lifting plate and base of a tree planting pit excavation device for landscape architecture provided in an embodiment of the present invention;

[0023] Figure 6 This is an enlarged structural schematic diagram of the limiting mechanism of a tree planting pit excavation device for landscape gardening provided in an embodiment of the present invention;

[0024] Figure 7 This is a bottom view structural diagram of a tree planting pit excavation device for landscape architecture provided in an embodiment of the present invention.

[0025] In the diagram: 1-base, 2-limiting mechanism, 3-upright pole, 4-lifting plate, 5-telescopic component, 6-water supply mechanism, 7-fixed cylinder, 8-driving component, 9-ring groove, 10-limiting rod, 11-pressure sensor, 12-side plate, 13-auger drill, 14-water tank, 15-water guide pipe, 16-sleeve, 17-connecting channel, 18-drainage channel, 19-soil retaining mechanism, 20-moving rod, 21-cover, 22-baffle, 23-support rod, 24-enclosure, 25-moving wheel, 26-limiting plate, 27-handle, 28-rubber sleeve, 29-ground stake, 30-fixing port. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, an embodiment of the present invention provides a tree planting pit excavation device for landscape architecture, including a base 1. A telescopic member 5 is provided on the top outer wall of the base 1. The specific structure of the telescopic member 5 is not limited. In this embodiment, preferably, the telescopic member 5 is a hydraulic cylinder, and a lifting plate 4 is provided at the telescopic end of the telescopic member 5. An opening is provided on the outer wall of the lifting plate 4, and a fixed cylinder 7 is movably disposed within the opening. A driving member 8 is fixedly disposed within the fixed cylinder 7. The specific structure of the driving member 8 is not limited. In this embodiment, preferably, the driving member 8 is a servo motor, and a driving end of the driving member 8 is provided with... The auger drill 13 has an annular groove 9 on the inner wall of its movable opening. The outer wall of the fixed cylinder 7 is provided with side plates 12 evenly spaced in a ring, with the side plates 12 located within the annular groove 9. A limit rod 10 is provided on the top outer wall of the side plates 12, penetrating the lifting plate 4. A pressure sensor 11 is also provided on the top inner wall of the annular groove 9. A vertical rod 3 is provided on the top outer wall of the base 1. A through hole is provided on the outer wall of the lifting plate 4, with the vertical rod 3 penetrating the through hole. A fixing opening 30 is provided on the bottom outer wall of the base 1, with the auger drill 13 located within the fixing opening 30. A moving wheel 25 is also provided on the bottom outer wall of the base 1. The system also includes:

[0028] Water supply mechanism 6 is installed on lifting plate 4 and is used to supply water to screw drill 13;

[0029] The soil retaining mechanism 19 is located on the outside of the auger drill 13 and is used to block soil that splashes out in all directions when digging a pit.

[0030] Limiting mechanism 2 is disposed in base 1 and is used to limit the position of base 1.

[0031] When digging a planting pit, the base 1 can be moved above the pit to be dug. Then, the drive component 8 can drive the auger drill 13 to rotate. At the same time, the telescopic component 5 drives the lifting plate 4 to move downward at a constant speed. During the movement, the rotating auger drill 13 contacts the soil, thus digging the planting pit. During the digging process, the fixed cylinder 7 will move upward in the movable opening, causing the side plate 12 on one side of the fixed cylinder 7 to move upward in the annular groove 9. Under the limiting action of the limiting rod 10, the fixed cylinder 7 can be vertically raised and lowered, ensuring the stability of the auger drill 13 during digging. When the side plate 12 moves upward, it can contact the pressure sensor 11, thereby detecting the downward pressure applied to the soil by the auger drill 13 during digging. When the pressure sensor 11 detects that the pressure exceeds the normal value, it indicates that the auger drill 13 is digging. When the drill 13 encounters hard objects such as rocks below, the extension and retraction of the telescopic component 5 can be stopped in time, effectively preventing the auger drill 13 from moving further downward and causing damage. This makes it safer to use and also extends the service life of the equipment. Furthermore, when the drilled soil is relatively dry and compacted, making it difficult to excavate, water can be supplied to the auger drill 13 through the water supply mechanism 6. The water will then drain from the bottom of the auger drill 13 to moisten the soil, making the compacted soil looser and easier to excavate. Moreover, during the excavation process, the soil retaining mechanism 19 can also block the soil excavated by the auger drill 13, effectively preventing the excavated soil from splashing in all directions and making it easier to fill in the soil when planting trees later. The overall effect is better.

[0032] As one embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 7 The water conveying mechanism 6 includes a water tank 14 located at the top of the upright 3. A water guide pipe 15 is connected to the bottom outer wall of the water tank 14, and a control valve is provided on the outside of the water guide pipe 15. A sleeve 16 is sleeved on the outside of the auger drill 13, and the water guide pipe 15 and the sleeve 16 are connected. A drainage channel 18 is opened at the bottom of the auger drill 13, and a connecting channel 17 connected to the drainage channel 18 is opened on one side of the auger drill 13. The connecting channel 17 is located in the sleeve 16. When it is necessary to wet the compacted soil, the control valve on the water guide pipe 15 can be opened, so that the water in the water tank 14 enters the sleeve 16 through the water guide pipe 15. The water in the sleeve 16 can then enter the drainage channel 18 of the auger drill 13 through the connecting channel 17, and finally be discharged through the bottom of the auger drill 13, thus achieving the function of wetting the soil. It is very convenient to use.

[0033] As one embodiment of the present invention, please refer to Figure 4 and Figure 7The retaining mechanism 19 includes a cover 21 located in the fixed opening 30, and the cover 21 is located outside the auger drill 13. The top of the cover 21 is provided with movable rods 20 evenly spaced in a ring, and the movable rods 20 penetrate the lifting plate 4. The top of the movable rods 20 is provided with a baffle 22, and the bottom outer wall of the baffle 22 is provided with support rods 23 evenly spaced in a ring. When the lifting plate 4 moves downward to drive the auger drill 13 to perform drilling operations, the cover 21 is located outside the auger drill 13, and the bottom of the cover 21 is in contact with the ground. Even when the lifting plate 4 moves downward, the cover 21... The movable rod 20 above, which is used to limit the position of the cover 21, will also move in the lifting plate 4. It will not affect the contact state between the cover 21 and the ground. In this way, the cover 21 can block the auger drill 13 and prevent the soil thrown out by the auger drill 13. When the excavation is completed and the lifting plate 4 moves up, the lifting plate 4 can drive the support rod 23 and the baffle 22 to move up together. The baffle 22 can then drive the cover 21 to move up through the movable rod 20. In this way, when the base 1 moves, it can prevent the cover 21 from pushing the excavated soil back into the excavation pit, and the effect is better.

[0034] As one embodiment of the present invention, please refer to Figure 4 The inner wall of the cover cylinder 21 is also provided with a hopper 24, and the hopper 24 is located on the outside of the screw auger 13. The hopper 24 can prevent the soil thrown out by the screw auger 13 from splashing out from the top of the cover cylinder 21, thus improving the performance.

[0035] In one embodiment of the present invention, both the telescopic member 5 and the driving member 8 are connected to a switch via wires, and the switch is electrically connected to a controller. The specific structure of the controller is not limited. In this embodiment, preferably, the controller is a microprogrammed controller, and the controller and the pressure sensor 11 are electrically connected.

[0036] As one embodiment of the present invention, please refer to Figure 1 and Figure 6 The limiting mechanism 2 includes a limiting plate 26. Limiting openings are provided on both sides of the top outer wall of the base 1, and the limiting plate 26 is movably disposed in the limiting openings. A rubber sleeve 28 is provided on the outer wall of the limiting plate 26, and the rubber sleeve 28 fits against the inner wall of the limiting opening. A handle 27 is provided on the top outer wall of the limiting plate 26. When the equipment is moved to a suitable position for drilling, the limit plate 26 can be pressed by holding the handle 27, so that the bottom of the limiting plate 26 contacts the ground, which can limit the base 1. The rubber sleeve 28 located between the limiting plate 26 and the limiting opening can prevent the limiting plate 26 from sliding down when it is in the limiting opening, so that the position of the limiting plate 26 in the limiting opening can be flexibly controlled and is very convenient to use.

[0037] As one embodiment of the present invention, please refer to Figure 1and Figure 6 The bottom outer wall of the limiting plate 26 is also provided with equally spaced ground stakes 29. When the limiting plate 26 moves down, the ground stakes 29 located at the bottom of the limiting plate 26 can be inserted into the soil, making the limiting more stable and the use effect better.

[0038] When digging a planting pit, the base 1 can be moved above the pit to be dug. Then, the drive component 8 can drive the auger drill 13 to rotate. At the same time, the telescopic component 5 drives the lifting plate 4 to move downward at a constant speed. During the movement, the rotating auger drill 13 contacts the soil, thus digging the planting pit. During the digging process, the fixed cylinder 7 will move upward in the movable opening, causing the side plate 12 on one side of the fixed cylinder 7 to move upward in the annular groove 9. Under the limiting action of the limiting rod 10, the fixed cylinder 7 can be vertically raised and lowered, ensuring the stability of the auger drill 13 during digging. When the side plate 12 moves upward, it can contact the pressure sensor 11, which can then detect the downward pressure applied to the soil by the auger drill 13 during digging. When the pressure sensor 11 detects that the pressure exceeds the normal value, it indicates... When the auger drill 13 encounters hard objects such as rocks below, the extension and retraction of the telescopic component 5 can be stopped in time, effectively preventing the auger drill 13 from moving further downward and causing damage. This makes it safer to use and also extends the service life of the equipment. Furthermore, when the soil being drilled is relatively dry and compacted, making it difficult to excavate, water can be supplied to the auger drill 13 through the water supply mechanism 6. The water will then drain from the bottom of the auger drill 13 to moisten the soil, making the compacted soil looser and easier to excavate. Moreover, during the excavation process, the soil retaining mechanism 19 can also block the soil excavated by the auger drill 13, effectively preventing the excavated soil from splashing in all directions and making it easier to fill in the soil when planting trees later. This results in better performance.

[0039] It should be noted that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tree planting pit excavation device for landscape gardening, comprising a base, characterized in that... The base has a telescopic component on its top outer wall, with a lifting plate at the telescopic end. The lifting plate has a movable opening on its outer wall, into which a fixed cylinder is movably disposed. A driving component is fixedly disposed within the fixed cylinder, with a auger drill at its driving end. An annular groove is also formed on the inner wall of the movable opening. Side plates, evenly spaced and arranged in a ring, are located on the outer wall of the fixed cylinder within the annular groove. A limit rod is provided on the top outer wall of each side plate, penetrating the lifting plate. A pressure sensor is also provided on the top inner wall of the annular groove. A vertical rod is provided on the top outer wall of the base. A through hole is formed on the outer wall of the lifting plate, through which the vertical rod passes. A fixed opening is also formed on the bottom outer wall of the base, with the auger drill located within it. The base also has casters on its bottom outer wall. The base further includes: A water supply mechanism, which is mounted on a lifting plate, is used to supply water to the auger drill. A soil retaining mechanism is provided on the outside of the auger drill to block soil that splashes outwards during digging. A limiting mechanism, which is disposed in the base, is used to limit the position of the base. The retaining mechanism includes a cover located in the fixed opening, and the cover is located outside the auger drill. The top of the cover is provided with movable rods that are evenly distributed in a ring, and the movable rods pass through the lifting plate. The top of the movable rods is provided with a baffle plate, and the bottom outer wall of the baffle plate is provided with support rods that are evenly distributed in a ring.

2. The tree planting pit excavation equipment for landscape architecture according to claim 1, characterized in that... The water conveying mechanism includes a water tank located at the top of the pole. The bottom outer wall of the water tank is connected to a water guide pipe, and a control valve is provided on the outside of the water guide pipe. A sleeve is fitted onto the outside of the auger drill, and the water guide pipe and the sleeve are connected. A drainage channel is provided at the bottom of the auger drill, and a connecting channel connected to the drainage channel is provided on one side of the auger drill, and the connecting channel is located in the sleeve.

3. The tree planting pit excavation equipment for landscape architecture according to claim 1, characterized in that... The inner wall of the cover is also provided with a hopper, and the hopper is located on the outside of the auger drill.

4. The tree planting pit excavation equipment for landscape architecture according to claim 1, characterized in that... The telescopic component and the driving component are both connected to a switch via wires, and the switch is electrically connected to a controller. The controller and the pressure sensor are electrically connected.

5. The tree planting pit excavation equipment for landscape architecture according to claim 1, characterized in that... The limiting mechanism includes a limiting plate. Limiting openings are provided on both sides of the top outer wall of the base, and the limiting plate is movably disposed in the limiting openings. A rubber sleeve is provided on the outer wall of the limiting plate, and the rubber sleeve is in contact with the inner wall of the limiting opening. A handle is provided on the top outer wall of the limiting plate.

6. The tree planting pit excavation equipment for landscape architecture according to claim 5, characterized in that... The bottom outer wall of the limiting plate is also provided with ground stakes that are evenly distributed.

Citation Information

Patent Citations

  • Hole digger for hard soil

    CN210928556U

  • Planting pit digging device for forestry

    CN213368592U

  • Nursery stock planting pit digging equipment for landscaping

    CN214155329U

  • Pit digging device for afforestation

    CN215912494U