CN211671267U

CN211671267U - Digging device suitable for stony desertification area

Info

Publication number: CN211671267U
Application number: CN202020035387.5U
Authority: CN
Inventors: 杨柳君; 侯金波; 黄苹; 陈培培
Original assignee: Anhui Hongsen Gaoke Forestry Co ltd
Current assignee: Anhui Hongsen Gaoke Forestry Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-10-16
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a digging device suitable for stony desertification area, including frame, wheel, boring mechanism, shovel mechanism, the wheel frame includes front wheel frame and rear wheel frame, the front wheel frame has two, the front wheel frame includes movable mechanism and wheel connecting rod, the movable mechanism inside is provided with elastomeric element, shovel mechanism with the frame is connected, and is located the outside of frame, shovel mechanism has the dozer blade, the dozer blade has the dozer blade depressed part, the lower extreme of dozer blade is the arc; through setting up wheel carrier and push away shovel mechanism, the utility model discloses can improve digging efficiency, convenient removal, reduce equipment damage.

Description

Digging device suitable for stony desertification area

Technical Field

The utility model relates to a digging device suitable for stony desertification area.

Background

Stony desertification refers to the serious soil erosion, large-area bare bedrock and the soil degradation phenomenon of the surface of the earth in a lithification manner in subtropical and tropical moist karst areas, and is the most serious ecological problem in the karst areas; comprehensive control is carried out to stony desertification, progressively resume impaired natural ecosystem, the most common method that keeps soil erosion and water loss is exactly afforestation, afforestation in-process needs carry out the operation of digging a pit, but current tree planting equipment of digging a pit once only can dig a pit, the efficiency of digging a pit is not high, secondly general equipment of digging a pit is when carrying out the operation of dumping, the front end is impaired easily, lead to the speed reduction of its dumping, and current equipment of digging a pit during operation, the vibrations of motor are felt stronger, be unfavorable for workman's operation.

The utility model discloses a chinese utility model patent that publication number is CN207939978U discloses a stony desertification is administered with equipment of digging a pit, including outer container casing and swivelling joint pole, the inside of outer container casing is provided with the shock attenuation board, and the inside of shock attenuation board has seted up the hole groove, the inside in hole groove runs through there is the support frame, and the upper surface inside of support frame is provided with first motor fixed slot, first motor has been placed to the inside of first motor fixed slot, and installs the transmission shaft in the below of first motor, swivelling joint pole's the outside is fixed with rotating vane, and swivelling joint pole is located the below of transmission shaft, swivelling joint pole's lower extreme is provided with the screwed connection end, the tip upper end outside is hugged closely has outer anchor clamps. This stony desertification is administered with efficiency of equipment of digging pit is higher, and secondly the front end of equipment of should digging pit can be dismantled for the front end of digging pit can obtain timely change, guarantees the device's speed of digging pit, and the device's inside motor is in the work less strong workman's operation that is favorable to of the sense of vibration that brings. However, the pit digging equipment only adopts a pit drilling mode to dig pits without cleaning stones, so that the pit digging efficiency is reduced, the equipment is greatly damaged, and in addition, after the pits are drilled, the planting pits can be formed only by carrying out secondary cleaning; furthermore, the terrains of the stony desertification areas are complex, and the pit digging equipment does not solve the problem of convenient movement in the complex terrains.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem, overcome the above-mentioned defect that prior art exists, provide a digging device suitable for stony desertification area.

The utility model provides a technical scheme that its technical problem adopted is, a digging device suitable for stony desertification area, including frame, wheel, brill hole mechanism, shovel mechanism pushes away, the frame is bilateral symmetry structure, the both sides of frame all include handle, push rod, vaulting pole, chassis, the push rod includes first push rod and second push rod, the one end of first push rod with the second push rod is connected, and integrated into one piece, the other end of first push rod with handle fixed connection, the upper end of vaulting pole with the push rod is connected, the one end of chassis with the lower extreme of second push rod is connected, the other end of chassis extends to below the vaulting pole lower extreme, the vaulting pole of frame both sides is connected through first horizontal pole, the second push rod of frame both sides passes through the second horizontal pole and connects; the wheel frame comprises a front wheel frame and a rear wheel frame, the number of the front wheel frames is two, the two front wheel frames are respectively arranged at two ends of the second cross rod, the front wheel frame comprises a movable mechanism and wheel connecting rods, elastic parts are arranged in the movable mechanism, the number of the rear wheel frames is two, the two rear wheel frames are vertical, and the rear wheel frames are simultaneously connected with the support rods and the underframe; the wheels comprise two front wheels and two rear wheels, the two front wheels are connected with the frame through the front wheel frame, the two rear wheels are connected with the frame through the rear wheel frame, and the rear wheels are universal wheels with brakes; the pit drilling mechanism is arranged between the second push rod and the support rod through a mounting plate; the blade pushing mechanism is connected with the second push rod and located on the outer side of the frame, the blade pushing mechanism is provided with a blade, the blade is provided with a blade concave portion, and the lower end of the blade is arc-shaped.

Furthermore, the movable mechanism comprises a first movable chamber, a first elastic chamber, a movable rod, a second elastic chamber and a second movable chamber, sliding grooves are arranged in the first movable chamber and the second movable chamber, one side of the first movable chamber is fixedly arranged at the side end of the second cross rod, the other side of the first movable chamber and the first elastic chamber are integrally formed and are communicated with each other, a communication port is formed, one side of the second movable chamber is fixedly connected with the wheel connecting rod, the other side of the second movable chamber and the second elastic chamber are integrally formed and are communicated with each other, a communication port is formed, one end of the movable rod penetrates through the communication port of the first movable chamber and the first elastic chamber and is arranged in the sliding groove of the first movable chamber, the other end of the movable rod penetrates through the communication port of the second movable chamber and the second elastic chamber and is arranged in the sliding groove of the second movable chamber, and the elastic parts are arranged between the movable rod and the upper and lower walls of the first elastic chamber and the second elastic chamber.

Further, the elastic member is a first spring.

Furthermore, two sides of the upper end of the dozer blade are respectively provided with a first electric telescopic rod extending upwards, the upper end of the first electric telescopic rod is connected with a second electric telescopic rod and movably connected with the upper end of the second electric telescopic rod, and the lower end of the second electric telescopic rod is fixedly connected with the upper end of the second push rod; the two sides of the dozer blade concave part are both provided with elastic connecting rods, one ends of the elastic connecting rods are connected with the dozer blade concave part in a sliding mode, and the other ends of the elastic connecting rods are fixedly connected with the second push rods.

Further, first electric telescopic handle electric connection has first control switch, second electric telescopic handle electric connection has second control switch, first control switch and second control switch install in first push rod, and be close to the handle.

Furthermore, the elastic connecting rod is provided with a first elastic fixing part, a second elastic fixing part and a second spring, the first elastic fixing part is connected with the depression of the dozer blade in a sliding mode, the second elastic fixing part is fixedly connected with the second push rod, one end of the second spring is fixedly connected with the first elastic fixing part, and the other end of the second spring is fixedly connected with the second elastic fixing part.

Furthermore, the mounting plate is provided with a mounting chute and a mounting opening, and the mounting chute is positioned around the mounting opening; the pit drilling mechanism comprises an installation chamber, a motor, a rotary screw rod and a lifter, wherein the installation chamber penetrates through an installation opening, the installation chamber is provided with installation sliding blocks which are symmetrically arranged, the installation sliding blocks are connected with an installation sliding groove in a sliding mode, the lower end of the installation chamber is provided with a through hole, a fixed rod is arranged above the installation chamber and fixedly connected between first push rods, one end of the lifter is fixed on the fixed rod, the other end of the lifter is fixed at the upper end of the installation chamber, the motor is installed in the installation chamber, the upper end of the rotary screw rod penetrates through the through hole at the lower end of the installation chamber and is connected with the lower end of the motor, the outer side of the rotary screw rod is in a threaded shape, and the lower end of the rotary screw rod is provided.

Further, the lifter is connected with a third control switch, and the third control switch is installed on the first push rod.

Further, the diameter of the front wheel is larger than the diameter of the rear wheel.

Compared with the prior art, the utility model has the advantages of it is following:

1. the digging efficiency can be improved, a low-lying sunken area can be cleaned before the pit is drilled through the push shovel mechanism, the workload of the pit drilling is reduced, the forming of the planting pit can be promoted, and the push shovel mechanism is adopted to clean the soil and the stone after the pit is drilled, so that the secondary cleaning of the soil and the stone during planting is avoided; the first electric telescopic rod and the second electric telescopic rod are adopted to control the dozer blade, so that the dozer blade can move up and down and adjust the angle, and the first elastic fixing part, the second elastic fixing part and the second spring are used to enable the dozer blade to be in sliding elastic connection with the second push rod, so that the dozer blade can be fixed and the angle of the dozer blade can be conveniently adjusted; in addition, the dozer blade is provided with a dozer blade concave part, and the lower end of the dozer blade is arc-shaped, so that the acting area on soil and stones is increased, and the dozer blade can conveniently extend into gaps among the stones and the soil;

2. the pit digging device can be conveniently moved, the resistance of the front wheels and the thrust transmitted by the push rod urge the movable mechanism to move up and down in the moving process of the pit digging device through the arrangement of the front wheel frame comprising the movable mechanism, so that the front wheel frame and the front wheels can move up and down to cross a complicated terrain area, and the movable mechanism, the front wheel frame and the front wheels can be timely adjusted in height under the action of the elastic component after crossing; by arranging the rear wheels which are universal wheels with brakes, the direction of the rear wheels can be adjusted according to the movement of the front wheels in the moving process of the pit digging device, and the rear wheels can be braked when the movement is stopped, so that the pit digging device is fixed, and in addition, the diameter of the front wheels is larger than that of the rear wheels, so that the rear wheels can be driven to move more conveniently;

3. equipment damage can be reduced, and the push shovel mechanism is adopted to clean the soil and the stone and then drill the pit, so that the pit drilling mechanism only needs to drill the pit on the soil and the stone which cannot be dug, and the working strength of the pit drilling mechanism is reduced; through the arrangement of the movable mechanism, strong vibration can be reduced in the moving process of the pit digging device, and the pit digging device has a buffering effect, so that the service life of the pit digging device is prolonged.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of the pit drilling mechanism of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the present invention in which the motor and the rotary screw are combined;

fig. 4 is a schematic perspective view of a front wheel frame of the present invention;

fig. 5 is a schematic perspective view of the middle push shovel mechanism of the present invention;

the labels in the figure are: the pit drilling mechanism 1, the blade mechanism 2, the handle 3, the stay 4, the underframe 5, the first push rod 6, the second push rod 7, the first cross rod 8, the second cross rod 9, the front wheel frame 10, the rear wheel frame 11, the front wheel 12, the rear wheel 13, the mounting plate 14, the blade 15, the blade recess 16, the first electric telescopic rod 17, the second electric telescopic rod 18, the elastic connecting rod 19, the first control switch 20, the second control switch 21, the wheel connecting rod 22, the first movable chamber 23, the first elastic chamber 24, the movable rod 25, the second elastic chamber 26, the second movable chamber 27, the first spring 28, the mounting chamber 29, the motor 30, the rotary screw 31, the lifter 32, the mounting slider 33, the mounting chute 34, the mounting port 35, the fixing rod 36, the tip 37, the third control switch 38, the first elastic fixing portion 39, the second elastic fixing portion 40, and the second spring 41.

Detailed Description

In order to make the technical solution of the present invention more specific, the following description is made in conjunction with the specific embodiments of the present invention, but the present invention is not limited thereto.

As shown in fig. 1 to 5, a pit digging device suitable for rocky desertification areas comprises a frame, a wheel frame, wheels, a pit drilling mechanism 1 and a shovel pushing mechanism 2; the frame is bilateral symmetry structure, the both sides of frame all include handle 3, push rod, vaulting pole 4, chassis 5, the push rod includes first push rod 6 and second push rod 7, the one end of first push rod 6 with second push rod 7 is connected to integrated into one piece makes atress on the first push rod 6 can direct action with second push rod 7, the other end of first push rod 6 with handle 3 fixed connection, the upper end of vaulting pole 4 with the push rod is connected, is used for stabilizing the frame, the one end of chassis 5 with the lower extreme of second push rod 7 is connected, the other end of chassis 5 extends to the below of vaulting pole 4 lower extreme, the vaulting pole 4 of frame both sides is connected through first horizontal pole 8, the second push rod 7 of frame both sides is connected through second horizontal pole 9.

The wheel frame comprises a front wheel frame 10 and a rear wheel frame 11, the number of the front wheel frames 10 is two, the two front wheel frames are respectively arranged at two ends of the second cross rod 9, the front wheel frame 10 comprises a movable mechanism and a wheel connecting rod 22, the movable mechanism can enable the front wheel frame 10 to move up and down, so that the height of the wheel can be adjusted according to actual terrain, and the movement of the stony desertification complex terrain is convenient, an elastic part is arranged in the movable mechanism, so that the height of the wheel can be automatically adjusted when the wheel passes through the complex terrain, and the wheel can be automatically reset, and preferably, the elastic part is a first spring 28; the movable mechanism comprises a first movable chamber 23, a first elastic chamber 24, a movable rod 25, a second elastic chamber 26 and a second movable chamber 27, sliding grooves are formed in the first movable chamber 23 and the second movable chamber 27, one side of the first movable chamber 23 is fixedly installed at the side end of the second cross rod 9, the other side of the first movable chamber 23 and the first elastic chamber 24 are integrally formed and are communicated with each other, a communication port is formed, one side of the second movable chamber 27 is fixedly connected with the wheel connecting rod 22, the other side of the second movable chamber 27 and the second elastic chamber 26 are integrally formed and are communicated with each other, a communication port is formed, one end of the movable rod 25 penetrates through the communication ports of the first movable chamber 23 and the first elastic chamber 24 and is installed in the sliding groove of the first movable chamber 23, the other end of the movable rod 25 penetrates through the communication ports of the second movable chamber 27 and the second elastic chamber 26, the movable rod 25 and the upper and lower walls of the first elastic chamber 24 and the second elastic chamber 26 are provided with the elastic components, so that the height of the movable rod 25 in the movable mechanism can be automatically adjusted and the movable rod can be automatically reset when the terrain is complicated; the number of the rear wheel frames 11 is two, the rear wheel frames 11 are of a vertical structure, and the rear wheel frames 11 are connected with the support rods 4 and the underframe 5 at the same time.

The wheels comprise two front wheels 12 and two rear wheels 13, the two front wheels 12 are connected with the frame through the front wheel frame 10, the diameter of the front wheels 12 is larger than that of the rear wheels 13, so that the pit digging device can move on a sloping field conveniently, the two rear wheels 13 are connected with the frame through the rear wheel frame 11, and the rear wheels 13 are universal wheels with brakes and are convenient for the rear wheels 13 to turn and fix.

The pit drilling mechanism 1 is arranged between the second push rod 7 and the support rod 4 through an installation plate 14, the installation plate 14 is provided with an installation sliding groove 34 and an installation opening 35, and the installation sliding groove 34 is located around the installation opening 35 and used for installing the pit drilling mechanism 1 in a sliding mode; the pit drilling mechanism 1 comprises a mounting chamber 29, a motor 30, a rotating screw 31 and a lifter 32, the mounting chamber 29 penetrates through the mounting opening 35, the mounting chamber 29 is provided with symmetrically arranged mounting sliding blocks 33, the mounting slider 33 is slidably connected to the mounting chute 34, the lower end of the mounting chamber 29 has a through hole, a fixing rod 36 is arranged above the mounting chamber 29, the fixing rod 36 is fixedly connected between the first push rods 6, one end of the lifter 32 is fixed to the fixing rod 36, the other end is fixed to the upper end of the installation chamber 29, the motor 30 is installed inside the installation chamber 29, the upper end of the rotary screw 31 penetrates through the through hole at the lower end of the installation chamber 29, the lower end of the motor 30 is connected with the outer side of the rotating screw 31 in a thread shape, and the lower end of the rotating screw 31 is provided with a pointed head 37; a third control switch 38 is connected to the lifter 32, and the third control switch 38 is mounted on the first push rod 6.

The shovel mechanism 2 is connected with the second push rod 7 and is positioned outside the frame, the shovel mechanism 2 is provided with a shovel 15 for pushing and shoveling earth and stones in a stony desertification area, the lower end of the shovel 15 is arc-shaped, so that the shovel 15 can extend into the earth and stones conveniently, two sides of the upper end of the shovel 15 are provided with first electric telescopic rods 17 extending upwards to control the shovel 15 to move up and down, the first electric telescopic rods 17 are electrically connected with a first control switch 20, the first control switch 20 is arranged on the first push rod 6 and close to the handle 3 so as to facilitate the operation of personnel, the upper end of the first electric telescopic rod 17 is connected with a second electric telescopic rod 18 and movably connected with the upper end of the second electric telescopic rod 18, the lower end of the second electric telescopic rod 18 is fixedly connected with the upper end of the second push rod 7, the second electric telescopic rod 18 is used for controlling the dozer blade 15 to shovel earth and stones, the second electric telescopic rod 18 is electrically connected with a second control switch 21, and the second control switch 21 is installed on the second push rod 7 and close to the handle 3, so that the operation of personnel is facilitated; the blade 15 is provided with a blade recess 16 so as to increase the action area on the soil and stones, the two sides of the blade recess 16 are respectively provided with an elastic connecting rod 19, so that the blade 15 can be conveniently adjusted, and the blade 15 can also be fixed, one end of each elastic connecting rod 19 is slidably connected with the blade recess 16, and the other end of each elastic connecting rod is fixedly connected with the second push rod 7 so as to facilitate the up-and-down movement of the blade 15; the elastic connecting rod 19 is provided with a first elastic fixing portion 39, a second elastic fixing portion 40 and a second spring 41, the first elastic fixing portion 39 is slidably connected with the dozer blade recess 16, the second elastic fixing portion 40 is fixedly connected with the second push rod 7, one end of the second spring 41 is fixedly connected with the first elastic fixing portion 39, and the other end of the second spring is fixedly connected with the second elastic fixing portion 40.

The specific operation of this embodiment is as follows: during the movement of the digging device, the handle 3 is held and pushed forward, during the pushing process, the stress of the handle 3 is transmitted to the front wheel 12 along the first push rod 6 and the second push rod 7, and the front wheel 12 is driven to rotate, through the rotation of the front wheel 12, the digging device moves forward, when the front wheel 12 moves in a stony desertification area, due to the complicated and various stony desertification areas, the front wheel 12 needs to move up and down to move in the stony desertification area, when the front wheel 12 meets the complicated and topographic areas, the resistance met by the front wheel 12 and the thrust transmitted by the push rods can enable the movable rod 25 inside the movable mechanism to move up and down along the first movable chamber 23 and the second movable chamber 27, the movable rod 25 can compress and stretch the second springs 41 on two sides, so that the movable mechanism is adjusted to a proper height, and together with the wheel link 22 and the front wheel 12, over complex terrain, when the resistance encountered by the front wheel 12 is reduced after crossing complex terrain, the second spring 41 will re-compress and stretch, enabling the height of the moving mechanism, wheel link 22 and front wheel 12 to be re-adjusted; in the moving process of the pit digging device, the direction of the rear wheels 13 can be adjusted according to the movement of the front wheels 12, the diameter of the front wheels 12 is larger than that of the rear wheels 13, the rear wheels 13 can be driven to move conveniently, and when the pit digging device stops moving, the rear wheels 13 can be braked because the rear wheels 13 are universal wheels with brakes, so that the pit digging device is fixed.

In the process of digging a pit, moving the digging device to the vicinity of an area needing to dig the pit, then controlling the first control switch 20 to enable the first electric telescopic rod 17 to be stretched downwards so as to enable the dozer blade 15 to move to the interior of the earth and stone, pushing the digging mechanism so as to enable the dozer blade 15 to be in closer contact with the earth and stone, controlling the second control switch 21, and properly pushing the digging mechanism so as to clean a low-lying depressed area; after the cleaning is finished, the first electric telescopic rod 17 and the second electric telescopic rod 18 are controlled, the dozer blade 15 is reset, the pit drilling mechanism 1 is moved to the position right above the low-lying depressed area, the pit drilling is carried out on the low-lying depressed area, and after the pit drilling is finished, the dozer blade 15 is used for cleaning broken stones and splashed soil again.

The above-described embodiments are merely illustrative of several ways of the present invention, but should not be construed as limiting the scope of the present invention. It should be noted that: for those skilled in the art, without departing from the spirit of the present invention, several modifications and improvements can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a digging device suitable for stony desertification area, includes frame, wheel, bores hole mechanism (1), its characterized in that: the push shovel is characterized by further comprising a push shovel mechanism (2), the frame is of a bilateral symmetry structure, the two sides of the frame respectively comprise a handle (3), a push rod, a support rod (4) and an underframe (5), the push rod comprises a first push rod (6) and a second push rod (7), one end of the first push rod (6) is connected with the second push rod (7) and integrally formed, the other end of the first push rod (6) is fixedly connected with the handle (3), the upper end of the support rod (4) is connected with the push rod, one end of the underframe (5) is connected with the lower end of the second push rod (7), the other end of the underframe (5) extends to the position below the lower end of the support rod (4), the support rods (4) on the two sides of the frame are connected through a first cross rod (8), and the second push rods (7) on the two sides of the frame are connected through a second cross rod (9); the wheel frame comprises a front wheel frame (10) and a rear wheel frame (11), the number of the front wheel frames (10) is two, the two front wheel frames are respectively arranged at two ends of the second cross rod (9), the front wheel frame (10) comprises a movable mechanism and wheel connecting rods (22), elastic parts are arranged in the movable mechanism, the number of the rear wheel frames (11) is two, the two rear wheel frames are vertical, and the rear wheel frames (11) are simultaneously connected with the support rods (4) and the underframe (5); the wheels comprise two front wheels (12) and two rear wheels (13), the two front wheels (12) are connected with the frame through the front wheel frame (10), the two rear wheels (13) are connected with the frame through the rear wheel frame (11), and the rear wheels (13) are universal wheels with brakes; the pit drilling mechanism (1) is arranged between the second push rod (7) and the support rod (4) through a mounting plate (14); the blade pushing mechanism (2) is connected with the second push rod (7) and located on the outer side of the frame, the blade pushing mechanism (2) is provided with a blade (15), the blade (15) is provided with a blade recess (16), and the lower end of the blade (15) is arc-shaped.

2. A pit digging apparatus according to claim 1, wherein: the movable mechanism comprises a first movable chamber (23), a first elastic chamber (24), a movable rod (25), a second elastic chamber (26) and a second movable chamber (27), sliding chutes are formed in the first movable chamber (23) and the second movable chamber (27), one side of the first movable chamber (23) is fixedly mounted at the side end of the second cross rod (9), the other side of the first movable chamber (23) is integrally formed with the first elastic chamber (24) and communicated with the first elastic chamber (24) to form a communicating port, one side of the second movable chamber (27) is fixedly connected with the wheel connecting rod (22), the other side of the second movable chamber (27) is integrally formed with the second elastic chamber (26) and communicated with the second elastic chamber to form a communicating port, and one end of the movable rod (25) penetrates through the communicating port of the first movable chamber (23) and the first elastic chamber (24), the elastic component is mounted in a sliding groove of the first movable chamber (23), the other end of the movable rod (25) penetrates through a communication port of the second movable chamber (27) and the second elastic chamber (26) and is mounted in the sliding groove of the second movable chamber (27), and the elastic component is mounted between the movable rod (25) and the upper wall and the lower wall of the first elastic chamber (24) and the upper wall and the lower wall of the second elastic chamber (26).

3. A boring device as set forth in claim 2, wherein: the elastic member is a first spring (28).

4. A pit digging apparatus according to claim 1, wherein: two sides of the upper end of the dozer blade (15) are respectively provided with a first electric telescopic rod (17) extending upwards, the upper end of the first electric telescopic rod (17) is connected with a second electric telescopic rod (18) and movably connected with the upper end of the second electric telescopic rod (18), and the lower end of the second electric telescopic rod (18) is fixedly connected with the upper end of the second push rod (7); the two sides of the dozer blade concave part (16) are both provided with elastic connecting rods (19), one ends of the elastic connecting rods (19) are connected with the dozer blade concave part (16) in a sliding mode, and the other ends of the elastic connecting rods are fixedly connected with the second push rods (7).

5. A pit digging apparatus according to claim 4, wherein: first electric telescopic handle (17) electric connection has first control switch (20), second electric telescopic handle (18) electric connection has second control switch (21), first control switch (20) and second control switch (21) install in first push rod (6), and be close to handle (3).

6. A pit digging apparatus according to claim 4, wherein: the elastic connecting rod (19) is provided with a first elastic fixing part (39), a second elastic fixing part (40) and a second spring (41), the first elastic fixing part (39) is connected with the dozer blade concave part (16) in a sliding mode, the second elastic fixing part (40) is connected with the second push rod (7) in a fixed mode, one end of the second spring (41) is connected with the first elastic fixing part (39) in a fixed mode, and the other end of the second spring is connected with the second elastic fixing part (40) in a fixed mode.

7. A pit digging apparatus according to claim 1, wherein: the mounting plate (14) is provided with a mounting sliding groove (34) and a mounting opening (35), and the mounting sliding groove (34) is positioned around the mounting opening (35); the pit drilling mechanism (1) comprises an installation chamber (29), a motor (30), a rotating screw rod (31) and a lifter (32), wherein the installation chamber (29) penetrates through an installation opening (35), the installation chamber (29) is provided with symmetrically arranged installation sliding blocks (33), the installation sliding blocks (33) are in sliding connection with an installation sliding groove (34), the lower end of the installation chamber (29) is provided with a through hole, a fixing rod (36) is arranged above the installation chamber (29), the fixing rod (36) is fixedly connected between first push rods (6), one end of the lifter (32) is fixed on the fixing rod (36), the other end of the lifter is fixed at the upper end of the installation chamber (29), the motor (30) is installed in the installation chamber (29), and the upper end of the rotating screw rod (31) penetrates through the through hole at the lower end of the installation chamber (29), and is connected with the lower end of the motor (30), the outer side of the rotating screw rod (31) is in a thread shape, and the lower end of the rotating screw rod (31) is provided with a sharp head (37).

8. A pit digging apparatus according to claim 7, wherein: the lifter (32) is connected with a third control switch (38), and the third control switch (38) is installed on the first push rod (6).

9. A pit digging apparatus according to claim 1, wherein: the diameter of the front wheel (12) is greater than the diameter of the rear wheel (13).