CN106965321A - A kind of diesel concrete stirring pumping device - Google Patents
A kind of diesel concrete stirring pumping device Download PDFInfo
- Publication number
- CN106965321A CN106965321A CN201710266174.6A CN201710266174A CN106965321A CN 106965321 A CN106965321 A CN 106965321A CN 201710266174 A CN201710266174 A CN 201710266174A CN 106965321 A CN106965321 A CN 106965321A
- Authority
- CN
- China
- Prior art keywords
- frame
- lifting motor
- stirring
- pumping device
- motor
- 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.)
- Pending
Links
- 238000003756 stirring Methods 0.000 title claims abstract description 46
- 238000005086 pumping Methods 0.000 title claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 25
- 230000003028 elevating effect Effects 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 description 8
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
- B28C5/20—Mixing in containers to which motion is imparted to effect the mixing rotating about a horizontal or substantially horizontal axis during mixing, e.g. without independent stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
- B28C5/20—Mixing in containers to which motion is imparted to effect the mixing rotating about a horizontal or substantially horizontal axis during mixing, e.g. without independent stirrers
- B28C5/2045—Parts or components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
- B28C5/20—Mixing in containers to which motion is imparted to effect the mixing rotating about a horizontal or substantially horizontal axis during mixing, e.g. without independent stirrers
- B28C5/2045—Parts or components
- B28C5/2072—Feeding or discharging mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/08—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips
- B28C7/0835—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using skips to be hoisted along guides or to be tilted, to charge working-site concrete mixers
- B28C7/0847—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using skips to be hoisted along guides or to be tilted, to charge working-site concrete mixers the skips being hoisted along vertical or inclined guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/08—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips
- B28C7/0835—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using skips to be hoisted along guides or to be tilted, to charge working-site concrete mixers
- B28C7/087—Parts; Accessories, e.g. safety devices
- B28C7/0876—Drives therefor, e.g. winches, hydraulic drives
Abstract
The invention discloses a kind of diesel concrete stirring pumping device, including frame, the side of the frame is provided with track, elevating hopper is movably equipped with the track, the frame is provided with engine and main oil pump, and main oil pump is located at the side of engine, the frame is provided with fixed mount, the fixed mount is provided with lifting motor, the lifting motor is connected with lifting motor roller by output shaft, the lifting motor roller is provided with steel wire rope, the one end of the steel wire rope away from lifting motor roller is installed on elevating hopper, mixing drum is provided with by support in the frame, the mixing drum is provided with slideway, the frame is provided with drive wheel bracket, the side of the drive wheel bracket is provided with stirring motor, the stirring motor is connected with rotary shaft by output shaft, the rotary shaft runs through drive wheel bracket, the rotary shaft is provided with driving wheel.The present invention drives elevating hopper and mixing drum by main oil pump, reliable and stable.
Description
Technical field
The present invention relates to concrete stirring pumping engineering device technique field, more particularly to a kind of diesel concrete mixing pump
Send device.
Background technology
The construction method of modern concrete is after concrete premixing is got well at commerical ready-mixed concrete station, to use concrete-agitating transport
Car delivers to construction site, then by concrete pumping equipment by concrete conveyance to cloth discharge position, such a method is adapted to construction party amount
It is larger, open and nearer from the commerical ready-mixed concrete station region in construction site.
But as economic develops rapidly, China advocates Urbanization Construction and brings opportunity, remote cities and towns and township energetically
Village is more and more to concrete demand, and the road in these regions is narrow, and many construction site stability of barrier are poor, conventional coagulation
Native agitator truck and concrete mixer are difficult to enter construction.
Therefore the stirring of concrete stirring pumping one drags pump to be received an acclaim in rural market, and he is by changing mixer
Make to be put on concrete pump and constitute stirring pumping all-in-one, feeding is small machine pulls feed hopper along leading by steel wire rope
Rail is promoted to stirring system entrance, and raw material is sent into, and stirring drives roller to drive mixing drum to rotate by motor.At present it
Maximum shortcoming be exactly rural area spread of voltage, efficiency is low, is motor easy burn-out, and security is not high, often due to motor
Burn out, be whole equipment can not normal work, or mixing drum rotating speed is low, does not reach the requirement of equipment, so current stirring
Drag the jejune equipment that pump is the very big defect of a presence.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of diesel concrete proposed
Stirring pumping device.
To achieve these goals, present invention employs following technical scheme:
A kind of diesel concrete stirring pumping device, including frame, the side of the frame are provided with track, the rail
Elevating hopper is movably equipped with road, the frame is provided with engine and main oil pump, and main oil pump is located at the side of engine, described
Frame is provided with fixed mount, and the fixed mount is connected with lifting horse provided with lifting motor, the lifting motor by output shaft
Up to roller, the lifting motor roller is provided with steel wire rope, and the one end of the steel wire rope away from lifting motor roller is installed on
On hopper, mixing drum is provided with by support in the frame, the mixing drum is provided with slideway, and the frame is provided with drive
Driving wheel support, the side of the drive wheel bracket is provided with stirring motor, and the stirring motor is connected with rotary shaft by output shaft,
The rotary shaft runs through drive wheel bracket, and the rotary shaft is provided with driving wheel, and driving wheel is movably arranged in slideway, the machine
Frame is provided with solenoid directional control valve, and the solenoid directional control valve is used for the rotating for controlling stirring motor and lifting motor.
It is preferred that, the bottom of the frame, which is arranged between fixed pole, the fixed pole, is provided with road wheel, and row
Wheel is walked to be movably arranged in frame.
It is preferred that, the side of the close elevating hopper of the mixing drum is provided with charging aperture, and the mixing drum is away from feeding
The side of bucket is provided with discharging opening.
It is preferred that, the frame is provided with fixed seat, and engine is in fixed seat.
It is preferred that, the drive wheel bracket is provided with the first notch, and rotary shaft is movably arranged in the first notch.
It is preferred that, the inwall of the mixing drum is provided with corrosion-resistant coating.
Compared with prior art, the beneficial effects of the invention are as follows:
In the present invention, by increasing engine, lifting motor roller, driving wheel, stirring motor and mixing drum, Neng Gouli
Power source is provided with engine driving main oil pump and gives stirring motor power, and stirring motor, which is rotated, drives driving wheel to rotate, so that
Mixing drum is rolled, and the steering of stirring motor is controlled by solenoid directional control valve, can make stirring motor forward or reverse, and pass through
Change the efficiency of pump oil to control the rotating speed of stirring motor, while main oil pump, which provides power source, gives lifting motor power, lift horse
Run up to rotating to drive by steel wire rope above and below elevating hopper, so as to complete the upper and lower action of elevating hopper, pass through solenoid directional control valve control
The steering of motor is lifted, lifting motor forward or reverse can be made, and controls by changing the efficiency of pump oil to lift motor
Rotating speed, the present invention is simple in construction, using engine driving main oil pump, and engine can carry out speed regulation according to load, realize weight
High speed, weight low speed are carried, energy-conservation is realized, while driving mixing drum and elevating hopper using main oil pump, the speed of mixing drum can
To be adjusted according to the requirement of client, and it can realize that the positive rotary speed of stirring is slow with discharging speed reversal soon, so that operating efficiency is improved,
Energy consumption is reduced, speed when elevating hopper fills speed and the decline when material rises can be adjusted, and accomplish heavy-duty low-speed, underloading is high
Speed, so that hopper is safer, the present invention drives elevating hopper and mixing drum by main oil pump, reliable and stable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of diesel concrete stirring pumping device proposed by the present invention.
In figure:1 elevating hopper, 2 frames, 3 engines, 4 lifting motor rollers, 5 driving wheels, 6 stirring motors, 7 mixing drums.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.
Reference picture 1, a kind of diesel concrete stirring pumping device, including frame 2, the side of frame 2 are provided with track,
Elevating hopper 1 is movably equipped with track, frame 2 is provided with engine 3 and main oil pump, and main oil pump is located at the side of engine 3, machine
Frame 2 is provided with fixed mount, and fixed mount is connected with lifting motor roller 4 by output shaft, carried provided with lifting motor, lifting motor
Rise motor roller 4 and be provided with steel wire rope, the one end of steel wire rope away from lifting motor roller 4 is installed on elevating hopper 1, in frame 2
Mixing drum 7 is provided with by support, mixing drum 7 is provided with slideway, and frame 2 is provided with drive wheel bracket, drive wheel bracket
Side is provided with stirring motor 6, and stirring motor 6 is connected with rotary shaft by output shaft, and rotary shaft runs through drive wheel bracket, rotary shaft
Driving wheel 5 is provided with, and driving wheel 5 is movably arranged in slideway, frame 2 is provided with solenoid directional control valve, and solenoid directional control valve is used to control
The rotating of stirring motor 6 processed and lifting motor, the bottom of frame 2 is arranged between fixed pole, fixed pole provided with row
Wheel is walked, and road wheel is movably arranged in frame 2, the side of the close elevating hopper 1 of mixing drum 7 is provided with charging aperture, mixing drum 7
Side away from elevating hopper 1 is provided with discharging opening, and frame 2 is provided with fixed seat, and engine 3 is in fixed seat, driving wheel branch
Frame is provided with the first notch, and rotary shaft is movably arranged in the first notch, and the inwall of mixing drum 7 is provided with corrosion-resistant coating.
When use, start engine 3, engine driving main oil pump provides power source and gives the power of stirring motor 6, stirs
Motor 6 drives driving wheel 5 to rotate, so that mixing drum 7 is rolled, passes through electromagnetism by output shaft rotation rotary shaft, rotary shaft
Reversal valve controls the steering of stirring motor 6, can make the forward or reverse of stirring motor 6, and pass through the effect of main oil pump change pump oil
Rate controls the rotating speed of stirring motor 6, while main oil pump, which provides power source, gives lifting motor power, lifting motor passes through output shaft
Lifting motor roller 4 is driven to rotate, the folding and unfolding steel wire rope of lifting motor roller 4, steel wire rope drives elevating hopper to be run about 1, so that
Elevating hopper 1 completes upper and lower action, controls to lift the steering of motor by solenoid directional control valve, can make lifting motor forward or reverse,
And change the control from view of profit of pump oil to lift the rotating speed of motor by main oil pump.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of diesel concrete stirring pumping device, including frame (2), it is characterised in that the side of the frame (2)
Provided with track, elevating hopper (1) is movably equipped with the track, the frame (2) is provided with engine (3) and main oil pump, and main
Oil pump is located at the side of engine (3), and the frame (2) is provided with fixed mount, and the fixed mount is described provided with lifting motor
Lifting motor is connected with lifting motor roller (4) by output shaft, and the lifting motor roller (4) is provided with steel wire rope, described
The one end of steel wire rope away from lifting motor roller (4) is installed on elevating hopper (1), is provided with and stirred by support on the frame (2)
Roller (7) is mixed, the mixing drum (7) is provided with slideway, and the frame (2) is provided with drive wheel bracket, the driving wheel branch
The side of frame is provided with stirring motor (6), and the stirring motor (6) is connected with rotary shaft by output shaft, and the rotary shaft runs through
Drive wheel bracket, the rotary shaft is provided with driving wheel (5), and driving wheel (5) is movably arranged in slideway, on the frame (2)
Provided with solenoid directional control valve, the solenoid directional control valve is used to control stirring motor (6) and lifts the rotating of motor.
2. a kind of diesel concrete stirring pumping device according to claim 1, it is characterised in that the frame
(2) bottom, which is arranged between fixed pole, the fixed pole, is provided with road wheel, and road wheel is movably arranged at frame (2)
On.
3. a kind of diesel concrete stirring pumping device according to claim 1, it is characterised in that the stirring rolling
The side of the close elevating hopper (1) of cylinder (7) is provided with charging aperture, and side of the mixing drum (7) away from elevating hopper (1) is provided with out
Material mouth.
4. a kind of diesel concrete stirring pumping device according to claim 1, it is characterised in that the frame
(2) fixed seat is provided with, and engine (3) is in fixed seat.
5. a kind of diesel concrete stirring pumping device according to claim 1, it is characterised in that the driving wheel
Support is provided with the first notch, and rotary shaft is movably arranged in the first notch.
6. a kind of diesel concrete stirring pumping device according to claim 1, it is characterised in that the stirring rolling
The inwall of cylinder (7) is provided with corrosion-resistant coating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710266174.6A CN106965321A (en) | 2017-04-21 | 2017-04-21 | A kind of diesel concrete stirring pumping device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710266174.6A CN106965321A (en) | 2017-04-21 | 2017-04-21 | A kind of diesel concrete stirring pumping device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106965321A true CN106965321A (en) | 2017-07-21 |
Family
ID=59332576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710266174.6A Pending CN106965321A (en) | 2017-04-21 | 2017-04-21 | A kind of diesel concrete stirring pumping device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106965321A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111267225A (en) * | 2020-03-24 | 2020-06-12 | 湖南挖挖工程科技有限公司 | Intelligent automatic concrete mixing pump sending machine |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203171833U (en) * | 2013-03-13 | 2013-09-04 | 张家港市宏泰建筑机械有限公司 | Concrete mixing and pumping machine |
CN103568124A (en) * | 2013-11-21 | 2014-02-12 | 湖南三民重工科技有限公司 | Fully-hydraulic automatic batching, stirring and pumping integrated vehicle-mounted pump |
EP2772339A1 (en) * | 2013-02-28 | 2014-09-03 | Cifa S.P.A. | Concrete mixer truck with safety device |
CN203994255U (en) * | 2014-06-10 | 2014-12-10 | 青岛科尼乐重工有限公司 | Diesel powered stirs drags pump |
CN104708714A (en) * | 2015-04-02 | 2015-06-17 | 林依 | Roller-type stirring trailer pump all-in-one machine |
CN106049874A (en) * | 2016-07-14 | 2016-10-26 | 湖南挖挖工程科技有限公司 | Full-hydraulic concrete stirring and pumping device |
CN206765087U (en) * | 2017-04-21 | 2017-12-19 | 湖南挖挖工程科技有限公司 | A kind of diesel concrete stirring pumping device |
-
2017
- 2017-04-21 CN CN201710266174.6A patent/CN106965321A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2772339A1 (en) * | 2013-02-28 | 2014-09-03 | Cifa S.P.A. | Concrete mixer truck with safety device |
CN203171833U (en) * | 2013-03-13 | 2013-09-04 | 张家港市宏泰建筑机械有限公司 | Concrete mixing and pumping machine |
CN103568124A (en) * | 2013-11-21 | 2014-02-12 | 湖南三民重工科技有限公司 | Fully-hydraulic automatic batching, stirring and pumping integrated vehicle-mounted pump |
CN203994255U (en) * | 2014-06-10 | 2014-12-10 | 青岛科尼乐重工有限公司 | Diesel powered stirs drags pump |
CN104708714A (en) * | 2015-04-02 | 2015-06-17 | 林依 | Roller-type stirring trailer pump all-in-one machine |
CN106049874A (en) * | 2016-07-14 | 2016-10-26 | 湖南挖挖工程科技有限公司 | Full-hydraulic concrete stirring and pumping device |
CN206765087U (en) * | 2017-04-21 | 2017-12-19 | 湖南挖挖工程科技有限公司 | A kind of diesel concrete stirring pumping device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111267225A (en) * | 2020-03-24 | 2020-06-12 | 湖南挖挖工程科技有限公司 | Intelligent automatic concrete mixing pump sending machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107364005A (en) | Double dynamical concrete-mixing pump truck | |
CN106049874A (en) | Full-hydraulic concrete stirring and pumping device | |
CN206765087U (en) | A kind of diesel concrete stirring pumping device | |
CN106965321A (en) | A kind of diesel concrete stirring pumping device | |
CN203765798U (en) | Concrete agitator | |
CN205660907U (en) | Stirring lifting machine with 4 wheel driven rubbing device | |
CN205857742U (en) | A kind of all-hydraulic concrete-agitating pumping installations | |
CN206230683U (en) | A kind of bridge construction concrete central mix plant | |
CN201566044U (en) | Vertical concrete stirring machine with lifting material feeding mechanism | |
CN205853105U (en) | A kind of charging hopper lifting device of concrete-agitating pumping system | |
CN104527748A (en) | Concrete trolley | |
CN106965325A (en) | A kind of diesel concrete stirring pumping device | |
CN206913451U (en) | A kind of diesel concrete stirring pumping device | |
CN216230079U (en) | Cement self-leveling mortar stirring and conveying device | |
CN205853099U (en) | A kind of concrete central mix plant | |
CN205853100U (en) | A kind of hydraulic stirring device of concrete-agitating pumping system | |
CN205685539U (en) | A kind of energy-conserving and environment-protective cement stirring device | |
CN207711075U (en) | A kind of chassis power taking concrete stirring pumping device | |
CN104708714A (en) | Roller-type stirring trailer pump all-in-one machine | |
CN211898344U (en) | Stirring pile for geotechnical engineering | |
CN207660286U (en) | Large-span industrial building device and concrete vertical transport | |
CN205148605U (en) | Concrete mixer | |
CN207919554U (en) | A kind of static pressed pile soil digging machine | |
CN210082108U (en) | Over-and-under type mixer feeder | |
CN102873756B (en) | Concrete mixer with lifting discharge hopper lifted by guide rope |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |
|
RJ01 | Rejection of invention patent application after publication |