CN203387876U - Punching and fertilizing integrated machine - Google Patents

Punching and fertilizing integrated machine Download PDF

Info

Publication number
CN203387876U
CN203387876U CN201320471855.3U CN201320471855U CN203387876U CN 203387876 U CN203387876 U CN 203387876U CN 201320471855 U CN201320471855 U CN 201320471855U CN 203387876 U CN203387876 U CN 203387876U
Authority
CN
China
Prior art keywords
fertilizer
motor
fusion
drill
hydraulic pump
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
CN201320471855.3U
Other languages
Chinese (zh)
Inventor
张清
闫利文
杨永利
王振宇
何家庆
张凯
石冠芳
史思亮
贺其宝
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.)
Tianjin TEDA Green Technology Group Co.,Ltd.
Original Assignee
TIANJIN TAIDA GARDEN CONSTRUCTION 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 TIANJIN TAIDA GARDEN CONSTRUCTION CO Ltd filed Critical TIANJIN TAIDA GARDEN CONSTRUCTION CO Ltd
Priority to CN201320471855.3U priority Critical patent/CN203387876U/en
Application granted granted Critical
Publication of CN203387876U publication Critical patent/CN203387876U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a punching and fertilizing integrated machine which comprises a frame (18), as well as a fertilizer box (19), a drilling mechanism, a power mechanism and a travelling mechanism, which are carried on the frame (18). The punching and fertilizing integrated machine further comprises a cylindrical and elastically flexible soil and fertilizer fuser (21) which is provided with openings at the upper part and the lower part. A drill (24) is arranged in the soil and fertilizer fuser, and the soil and fertilizer fuser can move up and down together with the drill. A material charging connector communicated with an inner cylindrical chamber of the soil and fertilizer fuser is further arranged on the upper part of the soil and fertilizer fuser. The opening of the material charging connector is located right below a material discharge opening of the fertilizer box. The integrated machine can move to a specified position by the travelling mechanism, and the drill and the soil and fertilizer fuser are matched to synchronously carry out drilling and mixing and stirring of the fertilizer and soil. Furthermore, finally, the drill reversely rotates to send the mixed mud into punched holes, so as to realize seamless link operation of punching and fertilizing, thereby not only improving the efficiency, but also saving the manpower.

Description

A kind of punching fertilization all-in-one machine
Affiliated technical field:
The utility model belongs to gardens technology field, is specifically related to a kind of all-in-one being punched, applied fertilizer and synchronously carry out in ground.
Background technology:
At present the gardens fertilizer distributor that punches is routinely main mainly with punching separately, and it is large to operate these equipment labour intensity, and safety is poor, and efficiency is low; CN202773313U is too simple simultaneously, does not possess in actual use practicality.Therefore be badly in need of that a kind of efficiency is high, simple to operate, the equipment of reliable operation the today constantly raising in human cost, based on above situation, applicant has invented the gardens fertilization all-in-one machine that punches routinely.
Summary of the invention:
The problem that the present invention need to solve is, according to actual production requirement, designs a kind of gardens fertilization all-in-one machine that punches routinely, utilizes this equipment, can reduce manpower labour intensity, raises labour efficiency, and safety is protected, and reduces labour cost.
Concrete technical scheme of the present utility model is: a kind of a kind of embodiment of the fertilization all-in-one machine that punches, and it comprises vehicle frame (18), and is carried on fertilizer can (19), borehole drill construction, actuating unit and running gear on vehicle frame (18); Wherein
Fertilizer can is used for depositing fertilizer, and its underpart is provided with discharging opening;
Borehole drill construction comprises telescopic section and bit part, and telescopic section connects and controls bit part and moves up and down, and the drill bit of bit part (24) punches;
The clay fertilizer fusion device (21) that also comprises a tubular energy elastic telescopic, the upper and lower opening that is provided with of clay fertilizer fusion device, drill bit (24) covers in clay fertilizer fusion device, and clay fertilizer fusion device can together move up and down with drill bit, clay fertilizer fusion device top is also provided with a blanking interface being communicated with clay fertilizer fusion device interior barrel chamber, the opening of blanking interface be positioned at fertilizer can discharging opening under.
Further, described borehole drill construction comprises the frame (43) being fixed on vehicle frame (18), erect and cylinder base and the frame top of bore liquid cylinder pressure (26,27) parallel to each other are connected for two, two bore liquid cylinder pressures are provided with motor fixed support and drill motor between (26,27), drill motor (28) body and motor fixed support (29) are affixed, drill motor (28) below connects the described drill bit of driving, and piston rod (25) top and the motor fixed support (29) of bore liquid cylinder pressure (26,27) are affixed.
Four pull bars of erectting and being parallel to each other are stretched at motor fixed support below, pull bar bottom is provided with locating piece (23), four slide blocks are fixed in clay fertilizer fusion device upper periphery, and centre is provided with through hole and makes the clay fertilizer fusion device can upper and lower activity along the pull bar body of rod for wearing pull bar.
Between clay fertilizer fusion device and fixed support, be also provided with back-moving spring.
Motor fixed support (29) sidepiece is also provided with the linear cylindrical guide rail (41) of the setting of being fixed on frame, and motor fixed support (29) is flexibly connected with linear cylindrical guide rail (41) by the guide pin bushing (42) being fixed thereon.
Further, the discharging opening place of fertilizer can is also provided with fertilising blade, and fertilising blade is driven and rotated by a stepper motor (111).
Further, the discharging opening of described fertilizer can bottom has incline structure.
Further, described actuating unit comprises hydraulic oil container (12), diesel engine (11), decelerator (17), hydraulic pump I(16), hydraulic pump II(15), generator (14), accumulator (13), wherein diesel engine (11) is inputted gearbox (12) by power, after gearbox (12) speed change, different power is passed to respectively to hydraulic motor I(16), hydraulic motor II(15), while hydraulic motor II(15) be connected with v band with generator, electric power is sent to accumulator (13), battery provides electric power for engine and other electric equipments.
Described decelerator (17), according to hydraulic pump I(16), hydraulic pump II(15) different output demands are by two output shafts that rotating speed is different of certain gearratio design, be connected to hydraulic pump I(16), hydraulic pump II(15), hydraulic pump II(15) on axle, there is v band wheel hub, be connected with v band with the v band wheel hub on generator.
Further, described running gear comprises that two front-wheels (33,34) of vehicle are driving wheel, other being coaxially installed with of two-wheeled drives hydraulic motor (31,32), driving vehicle advances, trailing wheel (101) is assisted diversion wheel, and two driving hydraulic motors (31,32) are connected in CD-ROM drive motor fixed support (35,36), and motor output shaft is connected with tire (33,34) simultaneously, drive hydraulic motor from hydraulic pump I obtains power, drive tumbrel to advance.
The course of work of whole device fast and automatically, precisely, does not need manual operation, utilizes mechanical automation completely, reduce human resources, everything all completes by plant equipment, has improved efficiency, reduced labour intensity, arriving of safety ensures, reduced production cost.
Accompanying drawing explanation
Fig. 1: complete vehicle structure figure;
Fig. 2: bore portion separation structure figure;
Fig. 3: drive part structure chart;
Fig. 4: boring synkinesia part-structure figure;
Embodiment
Below in conjunction with accompanying drawing, further illustrate, as shown in the figure, a kind of embodiment of a kind of fertilization all-in-one machine that punches that the utility model provides, it comprises vehicle frame (18), and is carried on fertilizer can (19), borehole drill construction, actuating unit and running gear on vehicle frame (18); Wherein
Fertilizer can is used for depositing fertilizer, and its underpart is provided with discharging opening 191;
Borehole drill construction comprises telescopic section and bit part, and telescopic section connects and controls bit part and moves up and down, and the drill bit of bit part (24) punches;
The clay fertilizer fusion device (21) that also comprises a tubular energy elastic telescopic, the upper and lower opening that is provided with of clay fertilizer fusion device, drill bit (24) covers in clay fertilizer fusion device, and clay fertilizer fusion device can together move up and down with drill bit, clay fertilizer fusion device top is also provided with a blanking interface being communicated with clay fertilizer fusion device interior barrel chamber, the opening of blanking interface 211 be positioned at fertilizer can discharging opening under; The fertilizer dropping from fertilizer can discharging opening can be caught by blanking interface, and it is inner to enter into clay fertilizer fusion device cylinder chamber.
The punching fertilization all-in-one machine that possesses above-mentioned feature, when carrying out punch operation, drill bit moves earthward under the driving of telescopic section, clay fertilizer fusion device together moves with drill bit, after kiss the earth, clay fertilizer fusion device is owing to having elasticity, clay fertilizer fusion device stops declining, but can not have influence on drill bit brill the action of punching, and clay fertilizer fusion device covers on drill bit periphery, the earth material that boring produces is collected in clay fertilizer fusion device, fertilizer is fallen into blanking port from fertilizer can discharging opening and is gone forward side by side in clay fertilizer fusion device, now under the rotation of drill bit drives, together with soil in clay fertilizer fusion device is stirred in fertilizer, when punching reaches requirement, drill bit is mentioned by telescopic section, and rotates backward, and the fertilizer soil reverse pumping from clay fertilizer fusion device of being rich in being stirred is given in the hole of accomplishing fluently, thereby realize the integrated operation of punching and fertilising.
Further, as shown in Figure 2 and Figure 4, the telescopic section of described borehole drill construction concrete version adopting in this programme is: comprise the frame (43) being fixed on vehicle frame (18), erect and bore liquid cylinder pressure (26 parallel to each other for two, 27) cylinder base and frame top are connected, two bore liquid cylinder pressures (26, 27) between, be provided with motor fixed support and drill motor, drill motor (28) body and motor fixed support (29) are affixed, , drill motor (28) below connects the described drill bit of driving, bore liquid cylinder pressure (26, 27) piston rod (25) top and motor fixed support (29) are affixed, bore liquid cylinder pressure (26, 27) drive its piston rod (25) flexible, drive on motor fixed support, lower movement, and then realize the upper of drill bit, lower movement.
Four pull bars of erectting and being parallel to each other are stretched at motor fixed support below, pull bar bottom is provided with locating piece (23), four slide blocks are fixed in clay fertilizer fusion device upper periphery, and centre is provided with through hole and makes the clay fertilizer fusion device can upper and lower activity along the pull bar body of rod for wearing pull bar; It act as: when clay fertilizer fusion device lower end touches ground, drill bit is when the downward brill of continuation is moving, clay fertilizer fusion device can no longer continue to follow downwards, but under being slidably matched of slide block and pull bar, ground remains motionless relatively, and locating piece (23) prevents that clay fertilizer fusion device (21) from dropping out from pull bar.
Between clay fertilizer fusion device and fixed support, be also provided with back-moving spring, when its effect can make drill bit upwards lift, clay fertilizer fusion device resets downwards under spring action, substantially maintains in the bit body that the is above the ground level cavity in clay fertilizer fusion device.
Motor fixed support (29) sidepiece is also provided with the linear cylindrical guide rail (41) of the setting of being fixed on frame, and motor fixed support (29) is flexibly connected with linear cylindrical guide rail (41) by the guide pin bushing (42) being fixed thereon.For moving up and down, telescoping mechanism provides guide effect.
Further, as shown in Figure 1, the discharging opening place of fertilizer can is also provided with fertilising blade, and fertilising blade is driven and rotated by a stepper motor (111), by the discharge discharging opening of the quantitative constant speed of fertilizer, falls into clay fertilizer fusion device (21).Reference numeral 112 representative fertilising sharfs in figure.
Further, the discharging opening of described fertilizer can bottom has incline structure, can be one side tiltler as shown in the figure, can be also two-sided inclination (being prismatoid) or bullet etc., as long as can realize, makes fertilizer rely on self gravitation to assemble and send fertilizer transfer mechanism to downwards.Fertilizer can bottom fertilising blade and the tangent motion of fertilizer can.
Further, described actuating unit comprises hydraulic oil container (12), diesel engine (11), decelerator (17), hydraulic pump I(16), hydraulic pump II(15), generator (14), accumulator (13), wherein diesel engine (11) is inputted gearbox (12) by power, after gearbox (12) speed change, different power is passed to respectively to hydraulic motor I(16), hydraulic motor II(15), while hydraulic motor II(15) be connected with v band with generator, electric power is sent to accumulator (13), battery provides electric power for engine and other electric equipments.
Described decelerator (17), according to hydraulic pump I(16), hydraulic pump II(15) different output demands are by two output shafts that rotating speed is different of certain gearratio design, be connected to hydraulic pump I(16), hydraulic pump II(15), hydraulic pump II(15) on axle, there is v band wheel hub, be connected with v band with the v band wheel hub on generator.
Further, as shown in Figure 3, described running gear comprises that two front-wheels (33,34) of vehicle are driving wheel, other being coaxially installed with of two-wheeled drives hydraulic motor (31,32), drives vehicle to advance, and trailing wheel (101) is assisted diversion wheel, two driving hydraulic motors (31,32) are connected in CD-ROM drive motor fixed support (35,36), motor output shaft is connected with tire (33,34) simultaneously, drives hydraulic motor from hydraulic pump I obtains power, drives tumbrel to advance.
The course of work of this all-in-one is summarized as follows: as shown in Figure 1, ato unit, after decelerator speed governing, hydraulic pump I controls two driving hydraulic pumps (15, 16) car is moved to after certain position, hydraulic pump I quits work, hydraulic pump II starts to drive bore liquid pressure motor (28) band that drill bit (24) is rotated, by bore liquid compressing cylinder (26, 27) drive drill bit and clay fertilizer fusion device to decline simultaneously, cylindrical linear rail leads to the descent direction of drill bit, when drill bit starts to touch soil, clay fertilizer fusion device stops declining, in punching, the earth of taking out of is all taken in clay fertilizer fusion device (21) by drill bit (24), two, Da Wan hole bore liquid compressing cylinder (26, 27) toward retraction, by bore liquid pressure motor (28), drill bit (24), clay fertilizer fusion device (21) brings back to origin-location.Stepper motor (111) starts to rotate drive fertilizer can (19) the inner sharfs that are connected with stepper motor (112) drive blade rotation one fixing turn afterwards, a certain amount of fertilizer is transported in clay fertilizer fusion device (21), drill bit (24) keeps rotating always simultaneously, fertilizer and earth are fully stirred clay fertilizer fusion device (21) is inner, and last drill bit (24) reversion sends back to the earth of stirring in the hole of accomplishing fluently.Then, hydraulic pump II quits work, and hydraulic pump I starts working, and enters next operation cycle.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.

Claims (9)

1. a punching fertilization all-in-one machine, is characterized in that: comprise vehicle frame (18), and be carried on fertilizer can (19), borehole drill construction, actuating unit and running gear on vehicle frame (18); Wherein
Fertilizer can is used for depositing fertilizer, and its underpart is provided with discharging opening;
Borehole drill construction comprises telescopic section and bit part, and telescopic section connects and controls bit part and moves up and down, and the drill bit of bit part (24) punches;
The clay fertilizer fusion device (21) that also comprises a tubular energy elastic telescopic, the upper and lower opening that is provided with of clay fertilizer fusion device, drill bit (24) covers in clay fertilizer fusion device, and clay fertilizer fusion device can together move up and down with drill bit, clay fertilizer fusion device top is also provided with a blanking interface being communicated with clay fertilizer fusion device interior barrel chamber, the opening of blanking interface be positioned at fertilizer can discharging opening under.
2. all-in-one according to claim 1, it is characterized in that: described borehole drill construction comprises the frame (43) being fixed on vehicle frame (18), erect and bore liquid cylinder pressure (26 parallel to each other for two, 27) cylinder base and frame top are connected, two bore liquid cylinder pressures (26, 27) between, be provided with motor fixed support and drill motor, drill motor (28) body and motor fixed support (29) are affixed, , drill motor (28) below connects the described drill bit of driving, bore liquid cylinder pressure (26, 27) piston rod (25) top and motor fixed support (29) are affixed,
Four pull bars of erectting and being parallel to each other are stretched at motor fixed support below, pull bar bottom is provided with locating piece (23), four slide blocks are fixed in clay fertilizer fusion device upper periphery, and centre is provided with through hole and makes the clay fertilizer fusion device can upper and lower activity along the pull bar body of rod for wearing pull bar.
3. all-in-one according to claim 2, is characterized in that: between clay fertilizer fusion device and fixed support, be also provided with back-moving spring.
4. all-in-one according to claim 2, it is characterized in that: motor fixed support (29) sidepiece is also provided with the linear cylindrical guide rail (41) of the setting of being fixed on frame, motor fixed support (29) is flexibly connected with linear cylindrical guide rail (41) by the guide pin bushing (42) being fixed thereon.For moving up and down, telescoping mechanism provides guide effect.
5. all-in-one according to claim 1, is characterized in that: the discharging opening place of fertilizer can is also provided with fertilising blade, and fertilising blade is driven and rotated by a stepper motor (111).
6. all-in-one according to claim 1, is characterized in that: the discharging opening of described fertilizer can bottom has incline structure.
7. all-in-one according to claim 1, it is characterized in that: described actuating unit comprises hydraulic oil container (12), diesel engine (11), decelerator (17), hydraulic pump I(16), hydraulic pump II(15), generator (14), accumulator (13), wherein diesel engine (11) is inputted gearbox (12) by power, after gearbox (12) speed change, different power is passed to respectively to hydraulic motor I(16), hydraulic motor II(15), while hydraulic motor II(15) be connected with v band with generator, electric power is sent to accumulator (13), battery provides electric power for engine and other electric equipments.
8. all-in-one according to claim 7, it is characterized in that: described decelerator (17), according to hydraulic pump I(16), hydraulic pump II(15) different output demands are by two output shafts that rotating speed is different of certain gearratio design, be connected to hydraulic pump I(16), hydraulic pump II(15), hydraulic pump II(15) on axle, there is v band wheel hub, be connected with v band with the v band wheel hub on generator.
9. all-in-one according to claim 1, it is characterized in that: described running gear comprises that two front-wheels (33,34) of vehicle are driving wheel, other being coaxially installed with of two-wheeled drives hydraulic motor (31,32), driving vehicle advances, trailing wheel (101) is assisted diversion wheel, two driving hydraulic motors (31,32) are connected in CD-ROM drive motor fixed support (35,36), motor output shaft is connected with tire (33,34) simultaneously, drive hydraulic motor from hydraulic pump I obtains power, drive tumbrel to advance.
CN201320471855.3U 2013-08-02 2013-08-02 Punching and fertilizing integrated machine Active CN203387876U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320471855.3U CN203387876U (en) 2013-08-02 2013-08-02 Punching and fertilizing integrated machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320471855.3U CN203387876U (en) 2013-08-02 2013-08-02 Punching and fertilizing integrated machine

Publications (1)

Publication Number Publication Date
CN203387876U true CN203387876U (en) 2014-01-15

Family

ID=49899446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320471855.3U Active CN203387876U (en) 2013-08-02 2013-08-02 Punching and fertilizing integrated machine

Country Status (1)

Country Link
CN (1) CN203387876U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104303684A (en) * 2014-10-16 2015-01-28 山东省农作物种质资源中心 Chinese yam harvesting machine
CN104322188A (en) * 2014-11-03 2015-02-04 中国农业大学 Well cellar type integrated quantitative fertilizing device
CN105900580A (en) * 2016-05-09 2016-08-31 塔里木大学 Self-walking gantry type fertilizer applicator for dwarf and dense planting jujube orchard
CN106342450A (en) * 2016-08-30 2017-01-25 中建路桥集团有限公司 Automatic planting device of zoning anti-dazzle plants on expressways
CN107295845A (en) * 2017-06-18 2017-10-27 董晶龙 A kind of small agricultural production fertilizer apparatus
CN108739311A (en) * 2018-06-21 2018-11-06 安徽省中日农业环保科技有限公司 A kind of semi-automatic trees fertigation all-in-one machine
CN108811606A (en) * 2018-04-03 2018-11-16 江苏大学 A kind of transmission device of tubers plant ditching machine
CN110839383A (en) * 2019-08-30 2020-02-28 南京宁粮生物工程有限公司 Flip formula bio-feritlizer fertilizer injection unit
CN111133865A (en) * 2019-12-28 2020-05-12 郑州宏拓电子技术有限公司 Square hardened ground digging and transplanting device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104303684A (en) * 2014-10-16 2015-01-28 山东省农作物种质资源中心 Chinese yam harvesting machine
CN104303684B (en) * 2014-10-16 2016-06-15 山东省农作物种质资源中心 Chinese yam harvester
CN104322188A (en) * 2014-11-03 2015-02-04 中国农业大学 Well cellar type integrated quantitative fertilizing device
CN104322188B (en) * 2014-11-03 2016-03-16 中国农业大学 Well cellar for storing things formula quantitative fertilization integrated device
CN105900580A (en) * 2016-05-09 2016-08-31 塔里木大学 Self-walking gantry type fertilizer applicator for dwarf and dense planting jujube orchard
CN106342450A (en) * 2016-08-30 2017-01-25 中建路桥集团有限公司 Automatic planting device of zoning anti-dazzle plants on expressways
CN107295845A (en) * 2017-06-18 2017-10-27 董晶龙 A kind of small agricultural production fertilizer apparatus
CN108811606A (en) * 2018-04-03 2018-11-16 江苏大学 A kind of transmission device of tubers plant ditching machine
CN108739311A (en) * 2018-06-21 2018-11-06 安徽省中日农业环保科技有限公司 A kind of semi-automatic trees fertigation all-in-one machine
CN110839383A (en) * 2019-08-30 2020-02-28 南京宁粮生物工程有限公司 Flip formula bio-feritlizer fertilizer injection unit
CN111133865A (en) * 2019-12-28 2020-05-12 郑州宏拓电子技术有限公司 Square hardened ground digging and transplanting device
CN111133865B (en) * 2019-12-28 2020-11-27 郑州宏拓电子技术有限公司 Square hardened ground digging and transplanting device

Similar Documents

Publication Publication Date Title
CN203387876U (en) Punching and fertilizing integrated machine
CN202773313U (en) Urban green space drilling and fertilizing integrated machine
CN103510852B (en) A kind of rotary drilling rig
CN204435377U (en) Boring piling pile pulling all-in-one
CN103821454B (en) Tunneling boring construction gas drainage under suction drill carriage
CN201554365U (en) Multifunctional dual-purpose machine for well-drilling and piling
CN201225155Y (en) Auxiliary thrusting apparatus of tunneling machine
CN201560710U (en) Integral all-hydraulic drill for mining capable of satisfying several drilling styles
CN204646086U (en) A kind of water drilling Spiral digging machine
CN103867122A (en) Full-hydraulic mountain exploratory crawler drilling machine
CN201908565U (en) Base plate anchor rope drilling machine for coal mine tunnel
CN201180490Y (en) Vehicle-mounted in-hole perforator
CN202882757U (en) Walking type full slewing drilling machine
CN101776538A (en) Displacement multiplication mechanism-based vehicle-mounted soil collecting device
CN204552608U (en) A kind of crawler type spindle drill
CN203742448U (en) Full-hydraulic exploration crawler drilling rig for mountainous regions
CN205117211U (en) Hydraulic rock drill
CN203006857U (en) Hinged multifunctional operation machine
CN205812723U (en) One is digged pit pedrail
CN102287134A (en) Hydraulic motive power foundation pile drilling machine mechanism
CN202348299U (en) Pneumatic handheld coal sidewall roof bolt driller
CN108625774A (en) A kind of moveable vertical lifting bores icing equipment and bores ice method
CN204355651U (en) Belt feeder Novel waistband self-movable foot end
CN203960722U (en) Portable cement pavement breaker
CN203808997U (en) Mechanical equipment for long-distance tunnel shallow bottom employing mining method

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: No. 26 Muning Road, Economic and Technological Development Zone, Binhai New Area, Tianjin, 300457

Patentee after: Tianjin TEDA Green Technology Group Co.,Ltd.

Address before: No. 26 Muning Road, Economic and Technological Development Zone, Binhai New Area, Tianjin, 300457

Patentee before: TIANJIN TEDA LANDSCAPE CONSTRUCTION Co.,Ltd.