CN114517498B - Irrigation and water conservancy construction slotting equipment - Google Patents
Irrigation and water conservancy construction slotting equipment Download PDFInfo
- Publication number
- CN114517498B CN114517498B CN202210287810.4A CN202210287810A CN114517498B CN 114517498 B CN114517498 B CN 114517498B CN 202210287810 A CN202210287810 A CN 202210287810A CN 114517498 B CN114517498 B CN 114517498B
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- Prior art keywords
- shell
- slotting
- cutter disc
- gear
- rotating rod
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B11/00—Drainage of soil, e.g. for agricultural purposes
- E02B11/02—Drainage device- laying apparatus, e.g. drainage ploughs
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/003—Dredgers or soil-shifting machines for special purposes for uncovering conduits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Soil Working Implements (AREA)
Abstract
The application discloses irrigation and water conservancy construction slotting equipment, which comprises a vehicle body and a slotting component arranged on the vehicle body in a sliding manner along the vertical direction, wherein the slotting component comprises a shell, a cutting component and a soil conveying component, the cutting component comprises a cutter disc and a plurality of blades arranged on the cutter disc, the cutter disc is coaxially and rotatably connected to one end of the shell, a first motor used for driving the cutter disc to rotate is arranged in the shell, one end, close to the cutter disc, of the shell is provided with a soil bin, a through hole is formed in the cutter disc and communicated with the soil bin, the soil conveying component comprises a spiral conveyor, one end of the spiral conveyor is inserted into the lower part inside the soil bin, the other end of the spiral conveyor extends to the outside of the shell, one end, outside the shell, of the spiral conveyor is communicated with a slag discharging pipe, through the arrangement of the cutter disc, only partial grooves are required to be manually formed in the whole slotting process, manpower is reduced, and the forming efficiency of the grooves is improved; in addition, the lifting assembly can adjust the height of the shell, so that grooves with different depths can be formed to a certain extent.
Description
Technical Field
The application relates to the field of irrigation and water conservancy construction equipment, in particular to irrigation and water conservancy construction slotting equipment.
Background
At present, in the irrigation and water conservancy work progress, often need set up the slot to the fluting device need be used.
In the related art, when slotting, the whole slotting process is generally manual slotting, which wastes time and labor.
Disclosure of Invention
In order to improve fluting efficiency of construction, this application provides a irrigation and water conservancy construction fluting equipment.
The application provides a pair of irrigation and water conservancy construction fluting equipment adopts following technical scheme:
the utility model provides a irrigation and water conservancy construction slotting device, includes the automobile body and slides the fluting part that sets up on the automobile body along vertical direction, still be equipped with the lifting unit who is used for driving the vertical removal of fluting part on the automobile body, the fluting part includes casing, cutting assembly and send native subassembly, cutting assembly includes the blade disc and sets up a plurality of blades on the blade disc, the coaxial rotation of blade disc is connected the one end of casing, be equipped with in the casing and be used for driving blade disc pivoted motor one, the casing is close to the soil storehouse has been seted up to the one end of blade disc, the through-hole has been seted up on the blade disc, the through-hole intercommunication soil storehouse, it includes screw conveyer to send native subassembly, screw conveyer one end is inserted soil storehouse inside below, the screw conveyer other end extends to the casing is outside, screw conveyer in the outside one end intercommunication of casing has the slag pipe.
By adopting the technical scheme, when the soil cutting machine is used, a part of grooves are manually formed in an initial road section needing grooving, the grooves are used for placing a shell, then the shell is placed into the grooves through a lifting assembly, then the vehicle body is moved, a first motor is started, a cutter head is driven to rotate, so that a blade on the cutter head can cut soil materials, then the cut soil materials enter a soil bin through a through hole under the continuous advancing of the shell and are discharged under the action of a spiral conveyor, and the grooves can be completely formed through the continuous advancing of the vehicle body; therefore, in the whole grooving process, only part of grooves need to be formed manually, so that the manpower is reduced, and the forming efficiency of the grooves is improved; in addition, the lifting assembly can adjust the height of the shell, so that grooves with different depths can be formed to a certain extent.
Optionally, the lifting assembly comprises a second motor and a screw rod, the screw rod is connected to the vehicle body in a rotating mode, the screw rod rotates to drive the slotting component to vertically move, and the second motor is used for driving the screw rod to rotate.
Through adopting above-mentioned technical scheme, when the vertical removal of drive casing, open motor two, drive the lead screw and rotate to can drive the vertical removal of casing, this lifting unit simple structure, convenient operation, and the lead screw has certain limit function, can restrict the casing in a certain position to a certain extent.
Optionally, the casing internal rotation is connected with the dwang, dwang other end fixedly connected with is used for the butt the scraper blade of blade disc inner wall, motor one is used for driving the dwang and rotates, be equipped with on the dwang be used for drive the blade disc with scraper blade antiport's transmission assembly.
Through adopting above-mentioned technical scheme, drive assembly can make scraper blade and blade disc antiport to the scraper blade can be scraped the soil material of adhesion on the blade disc, prevents that the through-hole from blockking up, influences discharge efficiency.
Optionally, the transmission assembly comprises a first gear, a second gear and a gear ring, the gear ring is coaxially fixed on the inner wall of the cutter head, the first gear is coaxially and fixedly connected to the rotating rod, the second gear is rotatably connected to the inside of the shell, and the first gear is meshed with the gear ring.
By adopting the technical scheme, when the rotating rod rotates, the scraper blade is driven to rotate, meanwhile, the rotating rod drives the first gear to rotate, and further drives the second gear to rotate, the second gear rotates to drive the gear ring to rotate, the gear ring rotates to drive the cutter head to rotate, and coaxial reverse rotation of the cutter head and the scraper blade is realized through arrangement of the first gear, the second gear and the gear ring; the transmission assembly is simple in structure and convenient to operate.
Optionally, the scraper blade includes lagging and extension board, the lagging is fixed on the dwang, the extension board is followed lagging length direction sliding connection is in the lagging, be equipped with in the casing and be used for the drive the gliding actuating mechanism of extension board.
Through adopting above-mentioned technical scheme, actuating mechanism can drive the extension board and slide, thereby can adjust the length of scraper blade, when the scraper blade rotates screw conveyer position department, accomodate to the lagging in through drive assembly drive extension board, thereby can prevent that the scraper blade from taking the soil material of screw conveyer position department to the soil storehouse top, influence the defeated material efficiency of screw conveyer, in addition because operating space is limited in the soil layer, also can prevent scraper blade and screw conveyer from producing the collision, be convenient for the screw conveyer lower extreme inserts in the soil storehouse, with better transport soil material.
Optionally, the dwang sets up for cavity and with the lagging intercommunication, actuating mechanism includes the inflator and sets up the piston in the inflator, the inflator passes through the trachea intercommunication and rotates and connect the dwang, the piston removes in order to drive the extension board slides, the dwang passes through the driving medium and drives the piston removes in order to aerify in the lagging, be equipped with in the inflator and be used for reseing the spring of piston; when the extension plate is far away from the sleeve plate, the scraper plate is far away from the spiral conveyor.
By adopting the technical scheme, when the scraper is far away from the spiral conveyor, the transmission piece on the rotating rod drives the piston to move, and the extension plate is driven to move outwards under the change of air pressure, so that the scraper is lengthened, and the scraping effect of the scraper is ensured; when the scraper is close to the spiral conveyer, the spring enables the piston to reset, so that the extension plate resets and is inserted into the sleeve plate under the change of air pressure; the driving mechanism realizes the extension and contraction of the scraper through the change of air pressure, and has stable work and rapid transmission.
Optionally, the transmission part includes a cam fixed on the rotating rod, the piston is fixedly connected with a movable rod, and the cam abuts against the piston rod to push the piston to move in the rotating process.
By adopting the technical scheme, when the rotating rod rotates, the cam on the rotating rod pushes the movable rod on the piston to move, so that the piston is driven to move, and after the cam is separated from the movable rod, the piston is reset under the action of the spring; the transmission piece drives the piston to move by utilizing the rotation of the rotating rod, and has a simple structure and stable transmission.
Optionally, a rubber pad for abutting against the movable rod is arranged on the cam.
Through adopting above-mentioned technical scheme, prevent that cam and movable rod from producing wearing and tearing.
In summary, the present application has the following beneficial technical effects:
1. according to the grooving machine, due to the arrangement of the cutter head, only part of grooves are required to be formed manually in the whole grooving process, so that the manpower is reduced, and the forming efficiency of the grooves is improved; in addition, the lifting assembly can adjust the height of the shell, so that grooves with different depths can be formed to a certain extent;
drawings
FIG. 1 is a schematic overall structure diagram of the irrigation and water conservancy construction slotting equipment in the embodiment of the application.
FIG. 2 is a schematic view of the overall construction of the slotted member of FIG. 1;
fig. 3 is a cross-sectional view of fig. 2.
Description of the reference numerals:
1. a vehicle body; 2. an opening; 3. a second motor; 4. a screw rod; 5. a housing; 6. fixing the rod; 7. a cross bar; 8. a cutter head; 9. a blade; 10. a first motor; 11. a partition plate; 12. a through hole; 13. a soil bin; 14. a screw conveyor; 15. a slag discharge pipe; 16. rotating the rod; 17. a squeegee; 18. a third gear; 19. a fourth gear; 20. a first gear; 21. a second gear; 22. a ring gear; 23. sheathing; 24. an extension plate; 25. an air cylinder; 26. a piston; 27. an air tube; 28. a spring; 29. a cam; 30. a movable rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses irrigation and water conservancy construction slotting equipment. Referring to fig. 1 and 2, the slotting device includes a vehicle body 1, a slotting member slidably provided on the vehicle body 1 in a vertical direction, and a lifting assembly for driving the slotting member to vertically move.
Offer the opening 2 that supplies the fluting part to pass through on the automobile body 1, lifting unit establishes to two sets of, and be located 2 both sides of opening respectively, lifting unit includes motor two 3 and lead screw 4, the fluting part includes casing 5, fixedly connected with dead lever 6 on the casing 5, dead lever 6 is vertical setting, the perpendicular fixedly connected with horizontal pole 7 in dead lever 6 upper end, lead screw 4 rotates to be connected on automobile body 1, 4 rotation axis of lead screw and length direction all set up along vertical direction, two lead screws 4 wear out two horizontal poles 7 respectively and with 7 threaded connection of horizontal pole, motor two 3 passes through mounting bracket fixed connection on automobile body 1, the coaxial fixed connection lead screw 4 upper end of motor two 3 output shafts.
In another embodiment, the lifting assembly can also be an air cylinder, or a winding roller and a pull rope, and the pull rope is wound by the winding roller to drive the slotted component to vertically move.
Referring to fig. 2 and 3, in this embodiment, the grooving component includes a cutting component and a soil conveying component, the cutting component includes a cutter disc 8 and a plurality of blades 9, the one end at casing 5 is connected in the coaxial rotation of cutter disc 8, a plurality of blades 9 set up the one end of keeping away from casing 5 at cutter disc 8, fixedly connected with is used for driving cutter disc 8 pivoted motor 10 in the casing 5, fixedly connected with is used for inserting baffle 11 in cutter disc 8 in the casing 5, form soil storehouse 13 between baffle 11 and the cutter disc 8, through-hole 12 has been seted up on the cutter disc 8, through-hole 12 intercommunication soil storehouse 13, the soil conveying component includes screw conveyer 14, 14 one end is inserted the inside below of soil storehouse 13 in the casing 5, the screw conveyer 14 other end extends to the casing 5 outside, screw conveyer 14 has slag pipe 15 in the one end intercommunication of the casing 5 outside.
The last rotation of baffle 11 is connected with dwang 16, and the one end of dwang 16 extends to in the soil storehouse 13 and fixedly connected with is used for the scraper blade 17 of butt blade disc 8 inner wall, and dwang 16 one of soil storehouse 13 outer serves coaxial fixedly connected with gear three 18, and coaxial fixed has gear four 19 on the motor 10 output shaft, and gear three 18 and gear four 19 mesh are equipped with the transmission assembly who is used for driving blade disc 8 and scraper blade 17 antiport on the dwang 16.
The transmission assembly comprises a first gear 20, a second gear 21 and a gear ring 22, the gear ring 22 is coaxially fixed on the inner wall of the cutter head 8, the first gear 20 is coaxially and fixedly connected to the part, on the outer side of the soil bin 13, of the rotating rod 16, the second gear 21 is rotatably connected to the partition plate 11, and the second gear 21 is meshed with the first gear 20 and the gear ring 22.
In order to prevent the extension plate 24 from coming off the chute, the chute is provided so as not to penetrate the collar plate 23.
The rotating rod 16 is arranged in a hollow manner and is communicated with the sleeve plate 23, the driving mechanism comprises an air cylinder 25 and a piston 26 which is arranged in the air cylinder 25 in a sliding manner along the length direction of the air cylinder 25, the air cylinder 25 is fixedly connected to the inner wall of the shell 5, the outer wall of the air cylinder 25 is communicated with an air pipe 27, the other end of the air pipe 27 is communicated with and is rotatably connected with the rotating rod 16, the piston 26 moves to drive the extension plate 24 to slide, the rotating rod 16 drives the piston 26 to move through a transmission piece so as to inflate the sleeve plate 23, and a spring 28 for resetting the piston 26 is fixedly connected between the inner bottom surface of the air cylinder 25 and the piston 26; when the extension plate 24 is away from the shoe plate 23, the flight 17 is away from the screw conveyor 14.
The driving medium includes the cam 29 of fixing on dwang 16, fixedly connected with movable rod 30 on the piston 26, and movable rod 30 supplies cam 29 butt, and the one side that movable rod 30 supplied cam 29 butt is the cambered surface, and cam 29 rotates in-process butt movable rod 30 and removes in order to promote piston 26.
In order to prevent the cam 29 and the movable rod 30 from being abraded due to collision with each other, a rubber pad is sleeved and fixedly connected on the outer wall of the cam 29.
The implementation principle of irrigation and water conservancy construction slotting equipment in the embodiment of the application is as follows: when the slotting machine is used, firstly, an initial groove for placing a slotting component is formed in an initial road section to be slotted manually, then the motor II 3 is started to drive the screw rod 4 to rotate, the slotting component is lowered into the initial groove, then the motor I10 is started and the vehicle body 1 is moved, and during the moving process of the vehicle body 1, the motor I10 drives the cutter head 8 to rotate, so that soil can be cut, and the cut soil enters the soil bin 13 through the through hole 12 and is sent out through the screw conveyor 14; therefore, the whole groove can be formed by moving the vehicle body 1; in addition, in the process that the rotating rod 16 is driven by the motor I10 to rotate, the first gear 20, the second gear 21 and the gear ring 22 are matched to realize the reverse rotation of the scraper 17 and the cutter head 8, so that the scraper 17 can scrape soil adhered to the inner wall of the cutter head 8 to the lower part of the soil bin 13, and the soil can be conveyed by the screw conveyor 14; when the scraper 17 rotates to the position of the screw conveyor 14, the cam 29 on the rotating rod 16 is disengaged from the movable rod 30, the piston 26 is reset under the action of the spring 28, the extension plate 24 retracts into the sleeve plate 23 under the action of air pressure, and the scraper 17 is shortened to prevent the scraper 17 from carrying the soil above the soil bin 13, which affects the efficiency of the screw conveyor 14 in conveying the soil.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. The utility model provides a irrigation and water conservancy construction fluting equipment which characterized in that: the slotting machine comprises a vehicle body (1) and a slotting component arranged on the vehicle body (1) in a sliding mode along the vertical direction, wherein a lifting component used for driving the slotting component to vertically move is further arranged on the vehicle body (1), the slotting component comprises a shell (5), a cutting component and a soil conveying component, the cutting component comprises a cutter disc (8) and a plurality of blades (9) arranged on the cutter disc (8), the cutter disc (8) is coaxially and rotatably connected to one end of the shell (5), a first motor (10) used for driving the cutter disc (8) to rotate is arranged in the shell (5), a soil bin (13) is arranged at one end, close to the cutter disc (8), of the shell (5), a through hole (12) is formed in the cutter disc (8), the through hole (12) is communicated with the soil bin (13), the soil conveying component comprises a spiral conveyor (14), one end of the spiral conveyor (14) is inserted into the inner lower portion of the soil bin (13), the other end of the spiral conveyor (14) extends to the outer portion of the shell (5), and a slag discharging pipe (15) is communicated with one end of the shell (5); a rotating rod (16) is rotatably connected in the shell (5), a scraper (17) used for abutting against the inner wall of the cutter head (8) is fixedly connected to the other end of the rotating rod (16), the first motor (10) is used for driving the rotating rod (16) to rotate, and a transmission assembly used for driving the cutter head (8) and the scraper (17) to rotate in the reverse direction is arranged on the rotating rod (16); the scraper (17) comprises a sleeve plate (23) and an extension plate (24), the sleeve plate (23) is fixed on the rotating rod (16), the extension plate (24) is connected in the sleeve plate (23) in a sliding manner along the length direction of the sleeve plate (23), and a driving mechanism for driving the extension plate (24) to slide is arranged in the shell (5); the rotating rod (16) is arranged in a hollow mode and is communicated with the sleeve plate (23), the driving mechanism comprises an air cylinder (25) and a piston (26) arranged in the air cylinder (25), the air cylinder (25) is communicated with the air pipe (27) and is rotatably connected with the rotating rod (16), the piston (26) moves to drive the extension plate (24) to slide, the rotating rod (16) drives the piston (26) to move to inflate the sleeve plate (23) through a transmission piece, and a spring (28) used for resetting the piston (26) is arranged in the air cylinder (25); when the extension plate (24) is far away from the sleeve plate (23), the scraper (17) is far away from the spiral conveyor (14).
2. The irrigation and water conservancy construction slotting device of claim 1, which is characterized in that: the lifting assembly comprises a second motor (3) and a screw rod (4), the screw rod (4) is rotatably connected to the vehicle body (1), the screw rod (4) rotates to drive the slotting part to vertically move, and the second motor (3) is used for driving the screw rod (4) to rotate.
3. The irrigation and water conservancy construction slotting device of claim 1, which is characterized in that: the transmission assembly comprises a first gear (20), a second gear (21) and a gear ring (22), wherein the gear ring (22) is coaxially fixed on the inner wall of the cutter head (8), the first gear (20) is coaxially and fixedly connected on the rotating rod (16), the second gear (21) is rotatably connected in the shell (5), and the second gear (21) simultaneously engages with the first gear (20) and the gear ring (22).
4. The irrigation and water conservancy construction slotting device of claim 1, which is characterized in that: the driving medium is including fixing cam (29) on dwang (16), fixedly connected with movable rod (30) on piston (26), cam (29) rotate in-process butt movable rod (30) and remove in order to promote piston (26).
5. The irrigation and water conservancy construction slotting device of claim 4, which is characterized in that: and a rubber pad used for abutting against the movable rod (30) is arranged on the cam (29).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210287810.4A CN114517498B (en) | 2022-03-23 | 2022-03-23 | Irrigation and water conservancy construction slotting equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210287810.4A CN114517498B (en) | 2022-03-23 | 2022-03-23 | Irrigation and water conservancy construction slotting equipment |
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CN114517498A CN114517498A (en) | 2022-05-20 |
CN114517498B true CN114517498B (en) | 2023-03-03 |
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CN202210287810.4A Active CN114517498B (en) | 2022-03-23 | 2022-03-23 | Irrigation and water conservancy construction slotting equipment |
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Citations (11)
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US4432584A (en) * | 1981-08-31 | 1984-02-21 | Leningradskoe Nauchno-Proizvodstvennoe Obiedinenie Zemleroinogo Mashinostroenia | Trenching machine for cutting preferably frozen ground |
CN201581428U (en) * | 2009-09-29 | 2010-09-15 | 北京市三一重机有限公司 | Grab bucket and mud scraper thereof |
CN109838242A (en) * | 2019-03-22 | 2019-06-04 | 中国铁建重工集团有限公司 | Development machine |
CN110714496A (en) * | 2019-09-07 | 2020-01-21 | 中煤东方市政建设集团有限公司 | Land leveler capable of automatically cleaning shovel blade |
CN111364542A (en) * | 2020-04-24 | 2020-07-03 | 王小珍 | Irrigation and water conservancy construction slotting equipment |
CN111648778A (en) * | 2020-06-24 | 2020-09-11 | 北京市政建设集团有限责任公司 | Independently-propelled earth pressure balance push bench |
CN211498409U (en) * | 2019-11-19 | 2020-09-15 | 苏东侠 | Road surface fluting device for municipal works |
CN212000866U (en) * | 2020-03-21 | 2020-11-24 | 四川华驿公路交通工程有限公司 | Hydraulic engineering drainage device |
CN112664217A (en) * | 2020-12-09 | 2021-04-16 | 安徽唐兴机械装备有限公司 | Tube push bench with rotatable blades |
CN214616549U (en) * | 2021-03-16 | 2021-11-05 | 常熟市华诚建设工程有限责任公司 | Earth pressure balance push bench |
CN214940531U (en) * | 2021-02-26 | 2021-11-30 | 中国建筑第二工程局有限公司 | Dash grab bucket structure convenient to unload soil |
-
2022
- 2022-03-23 CN CN202210287810.4A patent/CN114517498B/en active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US4432584A (en) * | 1981-08-31 | 1984-02-21 | Leningradskoe Nauchno-Proizvodstvennoe Obiedinenie Zemleroinogo Mashinostroenia | Trenching machine for cutting preferably frozen ground |
CN201581428U (en) * | 2009-09-29 | 2010-09-15 | 北京市三一重机有限公司 | Grab bucket and mud scraper thereof |
CN109838242A (en) * | 2019-03-22 | 2019-06-04 | 中国铁建重工集团有限公司 | Development machine |
CN110714496A (en) * | 2019-09-07 | 2020-01-21 | 中煤东方市政建设集团有限公司 | Land leveler capable of automatically cleaning shovel blade |
CN211498409U (en) * | 2019-11-19 | 2020-09-15 | 苏东侠 | Road surface fluting device for municipal works |
CN212000866U (en) * | 2020-03-21 | 2020-11-24 | 四川华驿公路交通工程有限公司 | Hydraulic engineering drainage device |
CN111364542A (en) * | 2020-04-24 | 2020-07-03 | 王小珍 | Irrigation and water conservancy construction slotting equipment |
CN111648778A (en) * | 2020-06-24 | 2020-09-11 | 北京市政建设集团有限责任公司 | Independently-propelled earth pressure balance push bench |
CN112664217A (en) * | 2020-12-09 | 2021-04-16 | 安徽唐兴机械装备有限公司 | Tube push bench with rotatable blades |
CN214940531U (en) * | 2021-02-26 | 2021-11-30 | 中国建筑第二工程局有限公司 | Dash grab bucket structure convenient to unload soil |
CN214616549U (en) * | 2021-03-16 | 2021-11-05 | 常熟市华诚建设工程有限责任公司 | Earth pressure balance push bench |
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CN114517498A (en) | 2022-05-20 |
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