CN107318275B - Coulter assembly of multifunctional automatic soil digging device for soil dislocation repair - Google Patents

Coulter assembly of multifunctional automatic soil digging device for soil dislocation repair Download PDF

Info

Publication number
CN107318275B
CN107318275B CN201710690560.8A CN201710690560A CN107318275B CN 107318275 B CN107318275 B CN 107318275B CN 201710690560 A CN201710690560 A CN 201710690560A CN 107318275 B CN107318275 B CN 107318275B
Authority
CN
China
Prior art keywords
soil
plate
coulter
sieving
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710690560.8A
Other languages
Chinese (zh)
Other versions
CN107318275A (en
Inventor
肖坤坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Kuangchu Technology Co ltd
Original Assignee
Hunan Kuangchu Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Kuangchu Technology Co ltd filed Critical Hunan Kuangchu Technology Co ltd
Priority to CN201710690560.8A priority Critical patent/CN107318275B/en
Publication of CN107318275A publication Critical patent/CN107318275A/en
Application granted granted Critical
Publication of CN107318275B publication Critical patent/CN107318275B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B3/00Ploughs with fixed plough-shares
    • A01B3/50Self-propelled ploughs
    • A01B3/52Self-propelled ploughs with three or more wheels, or endless tracks
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B15/00Elements, tools, or details of ploughs
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B77/00Machines for lifting and treating soil

Abstract

The invention relates to a multifunctional automatic soil digging device for soil ectopic repair, which comprises a soil digging mechanism, a soil conveying mechanism, a soil storage mechanism and an automatic moving mechanism; the soil digging mechanism comprises a coulter arranged at the front end of the supporting arm, a sieving structure rotatably arranged at the tail of the coulter, and a pressing plate fixedly arranged above the coulter, wherein the tail end of the coulter is tilted upwards, the sieving structure comprises a sieve plate arranged at the tail of the coulter, and baffle plates arranged at two sides of the sieve plate, and one side of the sieving plate is provided with a storage structure for the blocks; the automatic moving mechanism comprises a crawler, a frame arranged on the crawler, a power device arranged on the frame and a control device, wherein the soil conveying mechanism comprises a soil conveying belt connected with the power device and the control device, and one end of the soil conveying mechanism is hinged on the frame and connected with the frame through an angle adjusting hydraulic cylinder.

Description

Coulter assembly of multifunctional automatic soil digging device for soil dislocation repair
Technical Field
The invention relates to a soil restoration device, in particular to a multifunctional automatic soil digging device applied to soil ectopic restoration.
Background
The environment is damaged more and more seriously, soil pollution of cultivated land is also aggravated, at present, people pay more and more attention to soil restoration, and at present, theoretically feasible restoration technologies comprise a physical restoration technology, a chemical restoration technology, a microorganism restoration technology, a plant restoration technology, a comprehensive restoration technology and the like, and part of restoration technologies enter the field application stage and achieve better effects. The method has the advantages of repairing polluted soil, blocking pollutants from entering a food chain, preventing harm to human health, and promoting land resource protection and sustainable development. At present, research and development on soil remediation technology mainly focuses on two aspects of remediation of soil polluted by degradable organic matters and heavy metals.
Soil pollution restoration technology can be divided into in-situ restoration technology and ex-situ restoration technology according to restoration positions, and most of the existing ex-situ restoration devices adopt original devices, such as a digger, the depth control of the digger is inaccurate, the digger relies on experience to dig, and only the action of digging can be completed, so that the efficiency is extremely low.
Disclosure of Invention
The applicant has studied and improved the above drawbacks of the prior art and has provided a multifunctional shovel which has the characteristics of multiple functions and high efficiency.
In order to solve the problems, the invention adopts the following scheme:
a multifunctional automatic soil digging device for soil ectopic repair comprises a soil digging mechanism, a soil conveying mechanism, a soil storage mechanism and an automatic moving mechanism; the soil digging mechanism comprises a coulter arranged at the front end of a supporting arm, a sieving structure rotatably arranged at the tail of the coulter, and a pressing plate fixedly arranged above the coulter, wherein the tail end of the coulter is tilted upwards, the sieving structure comprises a sieving plate arranged at the tail of the coulter and baffle plates arranged at two sides of the sieving plate, one side of the sieving plate is provided with a storage structure of a block, the storage structure comprises a storage bag frame arranged at one side of the sieving plate and a storage bag arranged on the storage bag frame, the automatic moving mechanism comprises a crawler belt, a frame arranged on the crawler belt, a power device and a control device arranged on the frame, the soil conveying mechanism comprises a soil conveying belt connected with the power device and the control device, the soil conveying belt is driven by a motor, and one end of the soil conveying mechanism is hinged on the frame and connected with the frame through an angle adjusting hydraulic cylinder; the soil storage mechanism comprises a bracket storage frame connected with the frame and a heating device arranged at the bottom of the bracket storage frame.
As preferable:
the baffle plate near one side of the storage bag frame is provided with a block passing groove.
The soil conveying mechanism is further arranged on a supporting bracket at the lower end of the soil conveying belt, and the supporting bracket comprises a supporting bracket and rollers arranged at the bottom of the supporting bracket.
The coulter comprises a horizontal slotting cutter and an inclined mud guiding cutter which are integrally structured, wherein the tail end of the inclined mud guiding cutter is provided with a sieving structure, and the front end of the horizontal slotting cutter is provided with a tip.
The screening structure further comprises a filter plate positioned below the screening plate, and the mesh holes of the screening plate are larger than the filter holes of the filter plate.
The utility model discloses a plough coulter, including the support arm, the board is sieved with the terminal of coulter is an organic whole structure, the both sides of coulter and the both sides of board are sieved link to each other with the backup pad at top through first backup pad and second backup pad respectively, the backup pad passes through the boost cylinder with the front end of support arm and links to each other, still installs vertical guide arm between backup pad and the support arm.
The pressing plate is movably mounted on the supporting plate by means of a pressing rod, the pressing rod penetrates through the supporting plate, and an upper spring and a lower spring are respectively mounted on the pressing rod located above and below the supporting plate.
The upper surface of the coulter is provided with a plurality of blades at intervals.
The two first support plates are connected through a side plate, and the side plate is connected with the support arm through a thrust oil cylinder.
The pressure sensing device is arranged on the pressure rod below the supporting plate through the supporting plate, and the pressure detection block corresponding to the pressure sensing device is arranged on the lower surface of the supporting plate.
The invention has the technical effects that:
the soil digging device adopts the coulter with specific design, has high digging efficiency, and is convenient for soil restoration by layering and collecting the soil according to the size; the special pressing plate structure is adopted, so that the depth and the pressure of the excavated soil can be conveniently controlled in real time, and the excavated soil operation is simplified.
Drawings
FIG. 1 is a schematic diagram of the mechanism of the present invention.
Fig. 2 is a partial enlarged view at a of fig. 1.
Fig. 3 is a schematic view of a storage structure of the present invention.
FIG. 4 is a top view of the coulter of the present invention.
FIG. 5 is a perspective view of the coulter of the present invention.
Fig. 6 is another directional view of fig. 5.
In the figure: 1. a soil digging mechanism; 10. a support arm; 11. a coulter; 111. a horizontal slotting tool; 112. tilting the mud guiding knife; 113. a first support plate; 114. a knife bar; 115. a side plate; 12. sieving structure; 121. screening plates; 122. a baffle; 1221. the block passes through the slot; 123. a filter plate; 124. a second support plate; 13. a pressing plate; 14. a storage structure; 141. a storage bag frame; 142. a storage bag; 15. a spring is arranged; 16. a lower spring; 17. a compression bar; 171. a support plate; 172. a pressure sensing device; 173. a pressure detection block; 2. a soil conveying mechanism; 21. a soil conveyor belt; 22. a support bracket; 221. a support bracket; 222. a roller; 3. a soil storage mechanism; 31. a rack storage frame; 32. a heating device; 4. an automatic moving mechanism; 41. a track; 42. a frame; 43. a power device; 44. a control device; 5. an angle adjusting hydraulic cylinder; 6. a support plate; 7. a booster cylinder; 8. a vertical guide rod; 9. and a thrust oil cylinder.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
As shown in fig. 1, 3 and 4, the multifunctional automatic soil-working device for soil dislocation repair of the present embodiment includes a soil-working mechanism 1, a soil-conveying mechanism 2, a soil-storing mechanism 3 and an automatic-moving mechanism 4; the soil digging mechanism 1 comprises a coulter 11 arranged at the front end of a supporting arm 10, a sieving structure 12 rotatably arranged at the tail of the coulter 11, and a pressing plate 13 fixedly arranged above the coulter 11, wherein the supporting arm 10 is a hydraulic telescopic arm, and is similar to the supporting arm of the existing crane, excavator and the like; the tail end of the coulter 11 is tilted upwards, the sieving structure 12 comprises a sieving plate 121 arranged at the tail part of the coulter 11, baffle plates 122 arranged at two sides of the sieving plate 121, a storage structure 14 for the block substances is arranged at one side of the sieving plate 121, the storage structure 14 comprises a storage bag frame 141 arranged at one side of the sieving plate 121 and a storage bag 142 arranged on the storage bag frame 141, the automatic moving mechanism 4 comprises a crawler 41, a frame 42 arranged on the crawler 41, a power device 43 arranged on the frame 42 and a control device 44, a cab is arranged in the control device 44, and the whole soil digging process is controlled by a driver. The soil conveying mechanism 2 comprises a soil conveying belt 21 connected with a power device 43 and a control device 44, the soil conveying belt 21 is driven by a motor, and one end of the soil conveying mechanism 2 is hinged on a frame 42 and is connected with the frame 42 through an angle adjusting hydraulic cylinder 5; the soil storage mechanism 3 includes a rack storage frame 31 connected to a carriage 42, and a heating device 32 mounted on the bottom of the rack storage frame 31.
In use, the operator of the control device 44 drives the entire excavator, and when the excavator advances, the direction of the coulter 11 is changed by controlling the length and angle of the support arm 10; after the coulter 11 is inserted into the soil, the soil enters the sieving plate 121 of the sieving structure 12 along the coulter 11 due to the blocking of the pressing plate 13, the filtered small particles fall onto the lower soil conveyor belt 21, and are conveyed into the bracket storage frame 31 through the soil conveyor belt 21, and the heating device 32 carries out heating and drying treatment on the soil; the large block of unfiltered soil enters the pocket 142 and is replaced when the pocket 142 is full.
According to the soil digging device, the soil is collected in a large block and a small particle mode, traditional crushing treatment is not carried out on the original soil, and the ecological environment of the original soil is protected. When transplanting, small granular soil is paved at the repaired position, and then large soil is covered on the small granular soil.
Preferably, as shown in fig. 4 and 5, the baffle 122 on the side close to the storage bag frame 141 has a block passing groove 1221. The size of the cake can be screened through the groove 1221 and the cake can be uniformly guided into the receiving pouch frame 141.
Preferably, as shown in fig. 1, the soil conveying mechanism 2 further comprises a support bracket 22 mounted at the lower end of the soil conveying belt 21, and the support bracket 22 comprises a support bracket 221 and a roller 222 mounted at the bottom of the support bracket 221.
As shown in fig. 4 to 6, the coulter 11 includes a horizontal slotting cutter 111 and an inclined mud guide cutter 112 which are integrally formed, a sieving structure 12 is provided at the end of the inclined mud guide cutter 112, and the front end of the horizontal slotting cutter 111 has a tip. The horizontal slotting tool 111 is inserted into the soil, which is directed into the screening arrangement 12 by the inclined mud guiding tool 112. The horizontal slotting tool 111 and the inclined mud guiding tool 112 are in smooth transition.
Preferably, as shown in fig. 5, the screening arrangement 12 further comprises a filter plate 123 located below the screening deck 121, the screening deck 121 having screening openings larger than the screening openings of the filter plate 123. Soil particles are finely divided by two stages of sieving.
As shown in fig. 5 and 6, the sieving plate 121 and the tail end of the coulter 11 are in an integral structure, two sides of the coulter 11 and two sides of the sieving plate 121 are respectively connected with the supporting plate 6 at the top through the first supporting plate 113 and the second supporting plate 124, the supporting plate 6 is connected with the front end of the supporting arm 10 through the booster cylinder 7, and a vertical guide rod 8 is further installed between the supporting plate 6 and the supporting arm 10. The pressurizing oil cylinder 7 is used for pushing the whole coulter 11 to be pressed down, preventing the coulter 11 from being tilted upwards and improving the excavating efficiency. The two ends of the booster cylinder 7 are arranged between the supporting arm 10 and the supporting plate 6 through hinge seats.
Preferably, as shown in fig. 5 and 6, the pressing plate 13 is movably mounted on the supporting plate 6 via a pressing rod 17, the pressing rod 17 penetrates through the supporting plate 6, and an upper spring 15 and a lower spring 16 are respectively mounted on the pressing rod 17 located above and below the supporting plate 6. The upper spring and the lower spring are pressure springs, the upper spring and the lower spring are arranged, the pressing plate 13 elastically presses soil during soil excavation, the soil loosening is avoided, and a whole block of mud can be reserved.
Preferably, as shown in FIG. 5, the upper surface of the plow blade 11 is provided with a plurality of blades 114 spaced apart. The arrangement of the blade 114 improves the tunneling efficiency of the coulter 11, and can efficiently separate the agglomerated soil for the soil to be separated.
Preferably, as shown in fig. 5, the two first support plates 113 are connected through a side plate 115, and the side plate 115 is connected with the support arm 10 through a thrust cylinder 9. The two ends of the thrust cylinder 9 are connected with the side plates 115 and the supporting arms 10 through hinge seats. The thrust oil cylinder 9 is used for increasing the tunneling force of the coulter 11 and assisting the support arm 10 to push the coulter, so that the soil excavating efficiency is improved.
As shown in fig. 2, a pressure sensing device 172 is mounted on the pressing bar 17 located below the support plate 6 through a support plate 171, and a pressure detecting block 173 corresponding to the pressure sensing device 172 is mounted on the lower surface of the support plate 6. As shown in fig. 6, when the coulter 11 works, soil presses the pressing plate 13, and the pressing rod 17 of the pressing plate 13 rises, so that the pressure sensing device 172 is driven to approach the pressure detecting block 173, and when the soil and the pressing rod contact each other, the detected pressure is transmitted to a controller (the controller is not shown and is installed in the excavator), and the controller controls the working states of the thrust cylinder 9 and the booster cylinder 7 according to the detected pressure signals.
The above embodiments are provided for convenience of description of the present invention, and are not intended to limit the present invention in any way, and any person skilled in the art will make local changes or modifications to the present invention without departing from the technical scope of the present invention.

Claims (3)

1. The utility model provides a soil ectopic is multi-functional automatic device of digging for repairing which characterized in that: comprises a soil digging mechanism (1), a soil conveying mechanism (2), a soil storage mechanism (3) and an automatic moving mechanism (4); the soil digging mechanism (1) comprises a coulter (11) arranged at the front end of a supporting arm, a sieving structure (12) rotatably arranged at the tail of the coulter (11), and a pressing plate (13) fixedly arranged above the coulter (11), wherein the tail end of the coulter (11) is tilted upwards, the sieving structure (12) comprises a sieving plate (121) arranged at the tail of the coulter (11), baffle plates (122) arranged at two sides of the sieving plate (121), one side of the sieving plate (121) is provided with a storage structure (14) for the blocky matters, the storage structure (14) comprises a storage bag frame (141) arranged at one side of the sieving plate (121) and a storage bag (142) arranged on the storage bag frame (141), the automatic moving mechanism (4) comprises a crawler (41), a frame (42) arranged on the crawler (41), a power device (43) and a control device (44) arranged on the frame (42), the soil conveying mechanism (2) comprises a soil conveying belt (21) connected with the power device (43) and the control device (44), and the soil conveying belt (21) is connected with the frame (42) through a hydraulic cylinder (5) by a hinge angle adjusting mechanism; the soil storage mechanism (3) comprises a bracket storage frame (31) connected with the frame (42) and a heating device (32) arranged at the bottom of the bracket storage frame (31); the coulter (11) comprises a horizontal slotting tool (111) and an inclined mud guiding tool (112) which are integrally structured, a sieving structure (12) is arranged at the tail end of the inclined mud guiding tool (112), and the front end of the horizontal slotting tool (111) is provided with a tip; a plurality of cutter bars (114) are arranged on the upper surface of the coulter (11) at intervals; the screening plate (121) and the tail end of the coulter (11) are of an integrated structure, two sides of the coulter (11) and two sides of the screening plate (121) are respectively connected with a supporting plate (6) at the top through a first supporting plate (113) and a second supporting plate (124), the supporting plate (6) is connected with the front end of a supporting arm through a pressurizing oil cylinder (7), and a vertical guide rod (8) is further arranged between the supporting plate (6) and the supporting arm; the sieving structure (12) further comprises a filter plate (123) positioned below the sieving plate (121), wherein the sieve holes of the sieving plate (121) are larger than the filter holes of the filter plate (123); the pressing plate (13) is movably arranged on the supporting plate (6) by virtue of a pressing rod (17), the pressing rod (17) penetrates through the supporting plate (6), and an upper spring (15) and a lower spring (16) are respectively arranged on the pressing rod (17) above and below the supporting plate (6); a pressure sensing device (172) is arranged on a pressure rod (17) positioned below the supporting plate (6) through a supporting plate (171), and a pressure detection block (173) corresponding to the pressure sensing device (172) is arranged on the lower surface of the supporting plate (6); a block passing groove (1221) is formed in the baffle plate (122) near the side of the storage bag frame (141).
2. The multifunctional automatic soil-working device for soil dislocation repair as claimed in claim 1, wherein: the soil conveying mechanism (2) is further arranged on a supporting bracket (22) at the lower end of the soil conveying belt (21), and the supporting bracket (22) comprises a supporting bracket (221) and rollers (222) arranged at the bottom of the supporting bracket (221).
3. The multifunctional automatic soil-working device for soil dislocation repair as claimed in claim 1, wherein: the two second support plates (124) are connected through a side plate (115), and the side plate (115) is connected with the support arm through a thrust oil cylinder (9).
CN201710690560.8A 2017-08-14 2017-08-14 Coulter assembly of multifunctional automatic soil digging device for soil dislocation repair Active CN107318275B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710690560.8A CN107318275B (en) 2017-08-14 2017-08-14 Coulter assembly of multifunctional automatic soil digging device for soil dislocation repair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710690560.8A CN107318275B (en) 2017-08-14 2017-08-14 Coulter assembly of multifunctional automatic soil digging device for soil dislocation repair

Publications (2)

Publication Number Publication Date
CN107318275A CN107318275A (en) 2017-11-07
CN107318275B true CN107318275B (en) 2024-01-30

Family

ID=60226017

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710690560.8A Active CN107318275B (en) 2017-08-14 2017-08-14 Coulter assembly of multifunctional automatic soil digging device for soil dislocation repair

Country Status (1)

Country Link
CN (1) CN107318275B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288170B (en) * 2017-08-14 2023-08-08 明达海洋工程有限公司 Multifunctional automatic soil digging device for soil ectopic repair

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104170550A (en) * 2014-08-18 2014-12-03 丹阳市保得生态农林开发有限公司 Soil screening remediation device
CN105268736A (en) * 2015-11-09 2016-01-27 湖南京湘能源技术有限公司 Crawler travelling type heavy metal soil remediation processor
CN205362213U (en) * 2016-01-27 2016-07-06 亿利首建生态科技有限公司 Soil normal position repair equipment
CN106734147A (en) * 2017-02-22 2017-05-31 黄江龙 It is a kind of for administering the automatic prosthetic appliance of the soil of soil pollution
CN107288170A (en) * 2017-08-14 2017-10-24 湖南匡楚科技有限公司 Soil heterotopic reparation is with multi-functional automatic shoveling device
CN207277405U (en) * 2017-08-14 2018-04-27 南安市景燕电子科技有限公司 The multi-functional automatic earth-moving equipment of soil heterotopic reparation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104170550A (en) * 2014-08-18 2014-12-03 丹阳市保得生态农林开发有限公司 Soil screening remediation device
CN105268736A (en) * 2015-11-09 2016-01-27 湖南京湘能源技术有限公司 Crawler travelling type heavy metal soil remediation processor
CN205362213U (en) * 2016-01-27 2016-07-06 亿利首建生态科技有限公司 Soil normal position repair equipment
CN106734147A (en) * 2017-02-22 2017-05-31 黄江龙 It is a kind of for administering the automatic prosthetic appliance of the soil of soil pollution
CN107288170A (en) * 2017-08-14 2017-10-24 湖南匡楚科技有限公司 Soil heterotopic reparation is with multi-functional automatic shoveling device
CN207277405U (en) * 2017-08-14 2018-04-27 南安市景燕电子科技有限公司 The multi-functional automatic earth-moving equipment of soil heterotopic reparation

Also Published As

Publication number Publication date
CN107318275A (en) 2017-11-07

Similar Documents

Publication Publication Date Title
CN107288170B (en) Multifunctional automatic soil digging device for soil ectopic repair
CN108940800B (en) Grit sieving mechanism
CN113914393B (en) Soil leveling compactor for building foundation
CN107318275B (en) Coulter assembly of multifunctional automatic soil digging device for soil dislocation repair
CN206667324U (en) A kind of engineering machinery presses road all-in-one with multi-functional digging and soil-shifting
CN201173138Y (en) Coal mine downhole water storehouse dredging machine
CN214852633U (en) Ploughing and leveling machine
CN204681810U (en) A kind of topsoil stripping machine
US20060070268A1 (en) Material-handling bucket with scraper blade
CN214271987U (en) Soil-shifting, soil-scattering and soil-pressing integrated device for soil-paving engineering
CN207277405U (en) The multi-functional automatic earth-moving equipment of soil heterotopic reparation
CN207284062U (en) The colter component of the multi-functional automatic earth-moving equipment of soil heterotopic reparation
JPH01190807A (en) Seaside cleaning apparatus
CN210782341U (en) Surface soil and turf piece collecting device
CN202644615U (en) Underground clean water storage machine for coal mine
CN213486498U (en) Clam collecting machine
CN214005631U (en) Water surface garbage cleaning device for river channel treatment
CN114593978A (en) Surface rock sampling device for geological exploration
KR20100045223A (en) Plow apparatus for tractor
CN204803938U (en) Multi -functional leveler
CN109760900B (en) Road construction dregs collection device
RU178081U1 (en) Loose-tooth bulldozer operating equipment
CN218183947U (en) A ditching device for fruit tree is planted
CN110278834A (en) A kind of surface soil and divot collecting device and its working method
CN213233585U (en) Bulldozing structure of multifunctional excavator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant