Improved pit digging device for sapling planting

Abstract

The utility model discloses an improved sapling planting pit digging device which comprises a rack, two idler wheels and two supporting legs are arranged at the bottom end of the rack, telescopic cone assemblies are installed on the supporting legs, a lifting seat is connected to the rack in a sliding mode, a rotating shaft is connected to the lifting seat in a rotating mode, and the rotating shaft is connected to the lifting seat in a rotating mode. A rotating shaft is installed on the lifting seat, a spiral blade is arranged on the rotating shaft, the top end of the rotating shaft is in transmission connection with a driving assembly, a pedal is installed on the lifting seat, a dustproof telescopic cover is installed on the lifting seat, and the spiral blade is located in the dustproof telescopic cover; the utility model has the beneficial effects that a pedal type pressing structure is designed, compared with a traditional hand-held pressing type tree planting hole digger, the device is more labor-saving, the telescopic cover is arranged outside the spiral cutter, dust flying during hole drilling can be effectively reduced, an operator is prevented from inhaling too much dust, meanwhile, the telescopic cone assembly convenient to pull out is designed, the operation is quick and convenient, and the working efficiency is improved. The device is worthy of wide-range popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of tree planting equipment, in particular to an improved seedling planting pit digging device. Background Art

[0002] Tree planting and digging equipment is an indispensable and commonly used machine for tree planting. The structure of traditional tree planting and digging machines generally includes a spiral drilling tool, which is connected to a driving device. When in use, a person holds the device and presses down to drill a tree pit. In order to ensure the stability of the drilling, some manufacturers install the spiral drilling tool on a frame and design a pointed conical support foot at the bottom of the frame. When in use, the pointed conical support foot is inserted into the soil to improve the stability of the drilling pit. After long-term use, it is found that the tree planting and digging equipment in the prior art generally has the following shortcomings: 1. In Inner Mongolia, there are often strong winds during spring tree planting, which causes dust to fly when drilling tree pits, endangering the health of tree planters; 2. When encountering relatively hard soil, the pointed conical support foot inserted into the soil is difficult to pull out, and the operation is difficult.

[0003] (1) Technical problems solved

[0004] The purpose of the utility model is to provide an improved seedling planting hole digging device to solve the technical problems in the prior art such as dust flying when drilling holes for planting trees and the difficulty in pulling out the supporting legs. Utility Model Content

[0005] (2) Technical solution

[0006] The content of the utility model: An improved seedling planting and digging device, which includes a frame, two rollers and two supporting legs are arranged at the bottom end of the frame, a telescopic cone assembly is installed on the supporting legs, a lifting seat is slidably connected to the frame, a rotating shaft is rotatably connected to the lifting seat, a spiral blade is arranged on the rotating shaft, the top end of the rotating shaft is transmission-connected to the driving assembly, a pedal is installed on the lifting seat, a dust-proof telescopic cover assembly is installed on the lifting seat, and the spiral blade is located inside the dust-proof telescopic cover assembly.

[0007] Furthermore, the dustproof telescopic cover assembly is made of a folding bellows, which shrinks longitudinally after being squeezed and stressed. A flange is connected to the bottom end of the folding bellows, and a guide rod is vertically connected to the flange. A through hole is opened on the lifting seat, and the guide rod is slidably connected to the through hole, and a limiting block is connected to the top end of the guide rod.

[0008] Furthermore, the telescopic cone assembly includes a telescopic cone, a mounting hole is vertically opened at the bottom end of the support leg, the telescopic cone is slidably connected in the mounting hole, an operating rod is connected to the telescopic cone, an L-shaped limiting groove is opened on the support leg, the operating rod is slidably connected to the limiting groove, a second compression spring is mounted on the support leg, the second compression spring is located between the operating rod and the limiting plate, and the limiting plate is fixedly mounted on the bottom of the support leg.

[0009] Furthermore, a sliding rod is connected to the frame, a sliding hole is opened on the lifting seat, and the sliding rod is slidably connected to the sliding hole.

[0010] Furthermore, a first compression spring is mounted on the slide bar, and the first compression spring is located below the lifting seat. The first compression spring provides an upward elastic force to the lifting seat.

[0011] Furthermore, the driving assembly includes a battery, an electric motor, and a reducer.

[0012] Furthermore, the driving assembly includes an internal combustion engine and a reducer.

[0013] Furthermore, anti-slip grooves are provided on the upper surface of the pedal.

[0014] (3) Beneficial effects

[0015] The beneficial effects of the present invention: The present invention is designed with a foot-operated downward pressure structure, which is more labor-saving than the traditional hand-held downward pressure tree planting and digging machine. A telescopic cover is arranged outside the spiral knife, which can effectively reduce dust flying during drilling and prevent the operator from inhaling too much dust. At the same time, the telescopic cone component is designed for easy pull-out, which is quick and convenient to operate and worthy of large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0019] The figure shows the frame 1, the limit plate 2, the rotating shaft 3, the spiral blade 4, the lifting seat 5, the slide bar 6, the first compression spring 7, the support leg 8, the pedal 9, the telescopic cone 10, the second compression spring 11, the operating lever 12, the limit slot 13, the folding bellows 14, the drive assembly 15, the flange 16, the guide rod 17, and the limit block 18. DETAILED DESCRIPTION

[0020] like Figure 1 and Figure 2 As shown, an improved seedling planting and digging device includes a frame 1, two rollers and four supporting legs 8 are provided at the bottom end of the frame 1, a telescopic cone assembly is installed on the supporting legs 8, a lifting seat 5 is slidably connected to the frame 1, a rotating shaft 3 is rotatably connected to the lifting seat 5, a spiral blade 4 is provided on the rotating shaft 3, the top of the rotating shaft 3 is transmission-connected to the driving assembly 15, a pedal 9 is installed on the lifting seat 5, anti-slip grooves are provided on the upper surface of the pedal 9, a dustproof telescopic cover assembly is installed on the lifting seat 5, and the spiral blade 4 is located inside the dustproof telescopic cover assembly.

[0021] like Figure 3 As shown, the telescopic cone assembly includes a telescopic cone 10, and a mounting hole is opened vertically upward at the bottom end of the support leg 8. The telescopic cone 10 is slidably connected in the mounting hole, and an operating rod 12 is connected to the telescopic cone 10. An L-shaped limiting groove 13 is opened on the support leg 8. The operating rod 12 is slidably connected to the limiting groove 13, and a second compression spring 11 is mounted on the support leg 8. The second compression spring 11 is located between the operating rod 12 and the limiting plate 2, and the limiting plate 2 is fixedly mounted on the bottom of the support leg 8.

[0022] like Figure 1 and Figure 2 As shown, the dust-proof telescopic cover assembly is made of a folding bellows 14, and the folding bellows 14 shrinks longitudinally after being squeezed and stressed. The dust-proof telescopic cover assembly is made of a folding bellows 14, and the folding bellows 14 shrinks longitudinally after being squeezed and stressed. A flange 16 is connected to the bottom end of the folding bellows 14, and a guide rod 17 is vertically connected to the flange 16. The guide rod 17 can prevent the folding bellows 14 from contacting with the spiral blade 4 and being damaged. A through hole is opened on the lifting seat 5, and the guide rod 17 is slidably connected to the through hole , a limit block 18 is connected to the top end of the guide rod 17; a slide rod 6 is connected to the frame 1, and a slide hole is opened on the lifting seat 5, and the slide rod 6 is slidably connected to the slide hole; a first compression spring 7 is mounted on the slide rod 6, and the first compression spring 7 is located below the lifting seat 5. The first compression spring 7 provides an upward elastic force to the lifting seat 5. The driving assembly 15 includes a battery, an electric motor, and a reducer. The driving assembly 15 can also be driven by burning gasoline. When driven by gasoline, the driving assembly 15 uses an internal combustion engine and a reducer.

[0023] When drilling a hole, Figures 1 to 3As shown, the operating rod 12 is located at the bottom corner of the limit groove 13, thereby ensuring that the telescopic cone 10 is in an extended state. At this time, the telescopic cone 10 can be inserted into the soil by stepping on the limit plate 2 to ensure smooth operation of the equipment. Then the drive assembly 15 is started, and the pedal 9 is stepped on to apply downward pressure, and the spiral blade 4 completes the downward drilling operation. The sand and soil discharged after drilling are located in the telescopic cover 14, avoiding excessive dust flying and preventing the operator from inhaling excessive dust; when encountering harder soil and making it difficult to pull out the telescopic cone 10, the operating rod 12 can be rotated, and the second compression spring 11 (an optional strong spring with large elastic force) can apply an upward elastic force to the telescopic cone 10, thereby pulling the telescopic cone 10 out of the soil.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved seedling planting pit digging device, characterized by: The invention comprises a frame (1), two rollers and two supporting legs (8) are arranged at the bottom end of the frame (1), a telescopic cone assembly is installed on the supporting legs (8), a lifting seat (5) is slidably connected on the frame (1), a rotating shaft (3) is rotatably connected on the lifting seat (5), a spiral blade (4) is arranged on the rotating shaft (3), the top end of the rotating shaft (3) is transmission-connected to a driving assembly (15), a pedal (9) is installed on the lifting seat (5), a dustproof telescopic cover assembly is installed on the lifting seat (5), and the spiral blade (4) is located inside the dustproof telescopic cover assembly.

2. The improved seedling planting hole digging device according to claim 1, characterized in that: The dustproof telescopic cover assembly is made of a folding bellows (14), and the folding bellows (14) shrinks longitudinally after being squeezed and stressed. A flange (16) is connected to the bottom end of the folding bellows (14), and a guide rod (17) is vertically connected to the flange (16). A through hole is opened on the lifting seat (5), and the guide rod (17) is slidably connected to the through hole. A limiting block (18) is connected to the top end of the guide rod (17).

3. The improved seedling planting hole digging device according to claim 1, characterized in that: The telescopic cone assembly includes a telescopic cone (10), a mounting hole is vertically opened at the bottom end of the support leg (8), the telescopic cone (10) is slidably connected in the mounting hole, an operating rod (12) is connected to the telescopic cone (10), an L-shaped limiting groove (13) is opened on the support leg (8), the operating rod (12) is slidably connected to the limiting groove (13), a second compression spring (11) is mounted on the support leg (8), the second compression spring (11) is located between the operating rod (12) and the limiting plate (2), and the limiting plate (2) is fixedly installed at the bottom of the support leg (8).

4. The improved seedling planting hole digging device according to claim 1, characterized in that: A sliding rod (6) is connected to the frame (1), a sliding hole is provided on the lifting seat (5), and the sliding rod (6) is slidably connected to the sliding hole.

5. The improved seedling planting hole digging device according to claim 4, characterized in that: A first compression spring (7) is mounted on the slide bar (6). The first compression spring (7) is located below the lifting seat (5). The first compression spring (7) provides an upward elastic force to the lifting seat (5).

6. The improved seedling planting hole digging device according to claim 1, characterized in that: The driving assembly (15) includes a battery, an electric motor, and a speed reducer.

7. The improved seedling planting hole digging device according to claim 1, characterized in that: The driving assembly (15) includes an internal combustion engine and a speed reducer.

8. The improved seedling planting hole digging device according to claim 1, characterized in that: Anti-slip grooves are provided on the upper surface of the pedal (9).

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