CN206928953U - A kind of concrete spreader - Google Patents
A kind of concrete spreader Download PDFInfo
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- CN206928953U CN206928953U CN201720454455.XU CN201720454455U CN206928953U CN 206928953 U CN206928953 U CN 206928953U CN 201720454455 U CN201720454455 U CN 201720454455U CN 206928953 U CN206928953 U CN 206928953U
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Abstract
The utility model provides a kind of concrete spreader, including dolly, pipe-line system and Telescopic rotating device, dolly include car body, ground-engaging element and locking member, and car body includes bottom plate；Pipe-line system includes feed pipe group, discharge nozzle group and connecting tube group, the pumping mechanism connection of feed pipe group and concrete, and connecting tube group is movably arranged on car body by Telescopic rotating device.Using technical solutions of the utility model, effect is：Overall structure is simplified；Car body and ground-engaging element Combination Design, it is easy to car body walking certain distance；The Combination Design of dolly, pipe-line system and Telescopic rotating device, it is easy to change the spatial relationship of each pipeline in pipe-line system, realize the change of distance and position, connected in conjunction with the pumping mechanism of concrete, realization has press seal enclosed feeding, concrete is evenly distributed, and greatly improves the quality of concrete product after grouting efficiency and grouting；The design of locking member, it is easy to fix the position of car body, further optimizes the cloth effect of material distributing machine.
Description
Technical field
It the utility model is related to Lining Technique field, and in particular to a kind of concrete spreader.
Background technology
During lining cutting, conventional concrete grouting uses the distribution device such as Application No. 201220331471.7 to enter
Row grouting, such a device are specifically：Including the reversing tube for delivering concrete and it is connected on chassis respectively to enter at mould window
Multiple concrete import chute, reversing tube located at multiple concrete import chute above, the port of export of reversing tube can be multiple
Concrete is changed between importing chute.
Following defect be present in such a mode：
1st, midway is needed to change and with pipe clamp to connecting pump tube, the cost time is longer, and work efficiency is relatively low, labor intensity is big, and changes
Interval time is grown during pipe, requires higher to concrete performance.
2nd, plate valve is more, and cumbersome, many staff's (generally requiring 6-7 people) of needs coordinate；Hopper, chute are equal
For open type, docking point is more, dead angle easily causes residual concrete accumulation more, and cleaning trouble, if cleaning is incomplete, the position is residual
Equipment is caused using difficulty after staying concrete setting or can not be used；Concrete is no pressure conveying, is flowed down by own wt is past
Dynamic, chute arrangement needs certain angle；Complicated, volume is larger, site layout project trouble.
In summary, concrete product quality is high after being badly in need of that a kind of structure is simplified, be easy to use, efficiency of construction is high and being in the milk
Grouting equipment to solve problems of the prior art.
Utility model content
The utility model purpose is to provide that a kind of structure is simplified, be easy to use, efficiency of construction is high and concrete after being in the milk
The high concrete spreader of product quality, concrete technical scheme are as follows：
A kind of concrete spreader, including dolly, pipe-line system and Telescopic rotating device；
The dolly includes car body, ground-engaging element and the locking member for the car body to be fixed, the car
Body includes bottom plate；
The pipe-line system includes extremely being in the milk by the feed pipe group on concrete transportation to the car body, by concrete conveyance
The discharge nozzle group of mouth fixing pipe and the connecting tube group for connecting the feed pipe group and the discharge nozzle group, the feed pipe
Group is connected with the pumping mechanism of concrete, and the connecting tube group is movably arranged on the bottom plate by the Telescopic rotating device
On, the Telescopic rotating device is used to drive the connecting tube group to carry out flexible and rotary motion.
Preferable in above technical scheme, the feed pipe group includes an at least feed pipe, and the discharge nozzle group includes
An at least discharge nozzle, the connecting tube group include an at least connecting tube；The Telescopic rotating device includes and the connection
Pipe quantity is identical and corresponds the Telescopic rotating single-piece set with the connecting tube.
Preferable in above technical scheme, the feed pipe group includes a feed pipe, and the discharge nozzle group includes one
Discharge nozzle, the connecting tube group include a connecting tube；The Telescopic rotating device includes one and a pair of the connecting tube 1
The Telescopic rotating single-piece that should be set.
Preferable in above technical scheme, the feed pipe is at least one of flexible pipe and hard pipeline, the connection
It is hard pipeline to manage as flexible pipe, the discharge nozzle, between the flexible pipe and the hard tube, between the flexible pipe that two connected with
And be attached between two connected hard tubes by playing the connector of fixed and sealing function, the connector is by pipe clamp
Formed with sealing ring.
It is preferable in above technical scheme, the Telescopic rotating single-piece include Telescopic rotating arm, extension and contraction control part and
Rotation-control members, the extension and contraction control part drive the Telescopic rotating arm to be stretched along its length, its one end with
The port of export connection of the connecting tube group, its other end are connected with the bottom plate；The rotation-control members drive described flexible
Turning arm is rotated, and its one end is connected with the port of export of the connecting tube group, and its other end is connected with the bottom plate.
Preferable in above technical scheme, the Telescopic rotating arm includes guide pillars and bushes, the upper end insertion of the guide pillar
The lower end of the guide pin bushing, the upper end of the guide pin bushing are connected with the port of export of the connecting tube group.
Preferable in above technical scheme, the extension and contraction control part includes telescopic oil cylinder, cylinder, Electrohydraulic push rod and spiral shell
Revolve at least one of screw mandrel；
The power part that the rotation-control members include turnbarrel and drive the turnbarrel to be rotated, institute
Turnbarrel is stated to be movably arranged on the bottom plate by support base.
Preferable in above technical scheme, the locking member and the ground-engaging element are integrated, either, institute
It is roller group to state ground-engaging element；The locking member is to be movably arranged in a manner of rotatable or be scalable on the bottom plate
Fixed plate.
Preferable in above technical scheme, the power part is at least one of motor, oil cylinder and hydraulic motor；Institute
It is the roller group with brake to state locking member and the ground-engaging element.
In order to reach superior technique effect, in addition to cleaning device, the cleaning device include cleaning delivery port and
Clean connecting tube, the cleaning connecting tube connection cleaning delivery port and cleaning pumping mechanism；The cleaning delivery port passes through
The Telescopic rotating single-piece is movably arranged on the bottom plate.
Using the technical solution of the utility model, have the advantages that：
(1) concrete spreader of the present utility model, which includes dolly, pipe-line system and Telescopic rotating device, dolly, includes
Car body, ground-engaging element and the locking member for being fixed on the car body on the walking track, car body include bottom plate；Pipe
Road system includes feed pipe group, discharge nozzle group and connecting tube group, the pumping mechanism connection of feed pipe group and concrete, connecting tube
Group is movably arranged on car body by Telescopic rotating device, and Telescopic rotating device is used to drive connecting tube group to be stretched and rotated
Motion, overall structure are simplified；The Combination Design of car body and ground-engaging element, it is easy to car body to carry out the walking of certain distance on demand；It is small
The Combination Design of car, pipe-line system and Telescopic rotating device so that pipe-line system is adjusted on demand under Telescopic rotating device action
The relative position of its inlet and outlet is saved, while its import can also be adjusted on demand under the action of dolly combination Telescopic rotating device
With the relative position of outlet, i.e. pipe-line system and the Combination Design of Telescopic rotating device, it is easy to change each pipeline in pipe-line system
Spatial relationship, realize the change of distance and position, in conjunction with concrete pumping mechanism connect, realization there is press seal enclosed to give
Material, concrete are evenly distributed, and greatly improve the quality of concrete product after grouting efficiency and grouting；The design of locking member, just
In the cloth effect of the relative position of fixed car body, further optimization material distributing machine.
(2) concrete structure of feed pipe group, discharge nozzle group and connecting tube group selects according to the actual requirements in the utility model,
Can use a set of pipeline single-piece realize it is multiple grouting mouths grouting (difference grouting mouths between transition, be to pass through Telescopic rotating
Device drives the action of pipeline single-piece to adjust the relative position of inlet and outlet), more circuits single-pieces can also be used simultaneously right
Multiple grouting mouths enter grouting (Telescopic rotating single-piece quantity should be identical with the quantity of pipeline single-piece), meet the needs of different.
(3) feed pipe described in the utility model is at least one of flexible pipe and hard pipeline, and the connecting tube is soft
Pipe, the discharge nozzle is hard pipeline, and satisfaction can pass through the combination of Telescopic rotating device or dolly combination Telescopic rotating device
During the relative position for the inlet and outlet that can change whole pipe-line system, selected according to different demands.Lead between each part
The connector for crossing pipe clamp and sealing ring composition is attached, while reaches fixed and sealing effect.
(4) Telescopic rotating single-piece includes Telescopic rotating arm, extension and contraction control part and rotation control unit in the utility model
Part, structure are simplified, and by the division of labor of extension and contraction control part and rotation-control members, can more accurately realize the dynamic of pipe-line system
Make, improve efficiency of construction；Telescopic rotating arm includes guide pillars and bushes, and extension and contraction control part is telescopic oil cylinder, cylinder, Electrohydraulic push rod
And at least one of helical screw, rotation-control members include turnbarrel and power part, and power part includes electricity
At least one of machine, oil cylinder and hydraulic motor.Overall structure is simplified, and part is readily available, and disclosure satisfy that flexible, rotation
Demand.
(5) locking member described in the utility model and the Combination Design of the ground-engaging element have diversified forms, excellent herein
Select two kinds：The first, locking member and ground-engaging element are integrated, preferably the roller group of strap brake, and brake can pass through
Console Automated condtrol；Secondth, ground-engaging element is roller group, and locking member is the activity in a manner of rotatable or be scalable
The fixed plate being arranged on the bottom plate, by acting fixed plate, fixation or release between car body and track can be achieved, it is convenient
Operation, and solid timing stability is good.
(6) cleaning device is also included in the utility model, the cleaning device includes pumping machine and the connection pumping
The cleaning connecting tube of machine and the grouting mouth fixing pipe, the concrete that can be remained after pouring to pipeline clean, pipeline
In system will not residual concrete, extension device service life；The pumping machine is cleaning fluid pumping machine or gas pumping machine, clearly
The mode of washing can be that air-flow is cleaned or cleaning fluid is rinsed, and meet the needs of different；The cleaning connecting tube is flexible pipe or hard
Matter pipeline, it is easy to use.
In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is the attachment structure schematic diagram of concrete spreader in embodiment 1, walking track and mouth fixing pipe of being in the milk；
Fig. 2 is Fig. 1 partial side view；
Wherein, 1, dolly, 1.1, car body, 1.11, bottom plate, 1.2, ground-engaging element, 1.3, locking member；
2nd, pipe-line system, 2.1, feed pipe group, 2.2, discharge nozzle group, 2.3, connecting tube group；
3rd, Telescopic rotating device, 3.1, Telescopic rotating arm, 3.11, guide pillar, 3.12, guide pin bushing, 3.2, rotation-control members,
3.21st, turnbarrel, 3.22, support base；
4th, cleaning device, 4.1, cleaning delivery port；
5th, walking track；
6th, grouting mouth fixing pipe.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be according to power
Profit requires to limit and the multitude of different ways of covering is implemented.
Embodiment 1：
Referring to Fig. 1 and Fig. 2, (black arrow in Fig. 1 and Fig. 2 represents the trend of concrete, and four-headed arrow represents small in Fig. 1
The trend of car, the four-headed arrow in Fig. 2 represent the telescopic direction of telescopic oil cylinder, and the curved arrow in Fig. 2 represents Telescopic rotating arm
Direction of rotation), a kind of concrete spreader, including dolly 1, pipe-line system 2, Telescopic rotating device 3 and cleaning device 4,
Dolly can longitudinally walk in orbit, and pipe-line system forms by hard tube or for flexible hose, can be filled with dolly or Telescopic rotating
The activity put is adjusted, changed to complete to dock and be fed.
The dolly 1 includes car body 1.1, ground-engaging element 1.2 and locking member 1.3, and the car body 1.1 includes bottom plate
1.11, ground-engaging element 1.2 matches with the walking track 5 being arranged on lining trolley, and locking member 1.3 is used for the car body
1.1 are fixed on the walking track 5.
The pipe-line system 2 is included the feed pipe group 2.1 on concrete transportation to the car body 1.1, concrete is defeated
Deliver to the discharge nozzle group 2.2 of grouting mouth fixing pipe 6 and for connecting the feed pipe group 2.1 and the discharge nozzle group 2.2
Connecting tube group 2.3, the feed pipe group 2.1 are connected with the pumping mechanism of concrete, and the connecting tube group 2.3 passes through described flexible
Rotating device 3 is movably arranged on the bottom plate 1.11, and the Telescopic rotating device 3 is used to drive the connecting tube group 2.3 to enter
Row stretches and rotary motion.Concrete structure is：The feed pipe group 2.1 includes a feed pipe, and the discharge nozzle group 2.2 includes
A piece discharge nozzle, the connecting tube group 2.3 include a connecting tube；The Telescopic rotating device 3 includes one and the connection
Pipe corresponds the Telescopic rotating single-piece set.The feed pipe group can also include more feedings that are arranged side by side or being arranged in series
Pipe, the discharge nozzle group can also include the more discharge nozzles set in parallel or in series, the quantity of the Telescopic rotating single-piece with
The quantity of connecting tube is identical.
The feed pipe and the connecting tube are that (feed pipe can also use hard pipeline and stereoplasm tube to flexible pipe
The combination in road and flexible pipe, meets different demands), the discharge nozzle is hard pipeline (herein using a hard pipeline),
Between the flexible pipe and the hard tube, (i.e. each pipeline between the flexible pipe that two connected and between two connected hard tubes
Between) be attached by playing the connector of fixed and sealing function, the connector is made up of pipe clamp and sealing ring.
The Telescopic rotating single-piece includes Telescopic rotating arm 3.1, extension and contraction control part and rotation-control members 3.2, institute
Stating extension and contraction control part drives the Telescopic rotating arm 3.1 to be stretched along its length, its one end and the connecting tube group
2.3 port of export connection, its other end are connected with the bottom plate 1.11；The rotation-control members 3.2 drive the flexible rotation
Pivoted arm 3.1 is rotated, and its one end is connected with the port of export of the connecting tube group 2.3, and its other end connects with the bottom plate 1.11
Connect.Concrete structure is herein：
The Telescopic rotating arm 3.1 includes guide pillar 3.11 and guide pin bushing 3.12, is led described in the upper end insertion of the guide pillar 3.11
The lower end of set 3.12, the upper end of the guide pin bushing 3.12 is connected with the port of export of the connecting tube group 2.3.Telescopic rotating arm can be with
Using the combination of another structure, i.e. guide pillar, guide pin bushing and protective cover, guide pillar under, is specifically in upper and guide pin bushing：Under guide pillar
The upper end of end insertion guide pin bushing, the both ends of extension and contraction control part connect guide pillars and bushes or rotation-control members respectively, and protective cover is used
The gap formed between guide pillars and bushes is sealed, prevents the foreign objects such as concrete from falling into.
The extension and contraction control part includes telescopic oil cylinder (can also be according to actual conditions using cylinder, Electrohydraulic push rod, spiral
At least one of screw mandrel), telescopic oil cylinder drives Telescopic rotating arm to be stretched along the central axial direction of guide pin bushing.
The rotation-control members 3.2 include turnbarrel 3.21 and drive what the turnbarrel 3.21 was rotated
Power part, the turnbarrel 3.21 are movably arranged on the bottom plate 1.11 by support base 3.22.The power part
For at least one of motor, oil cylinder and hydraulic motor.
The ground-engaging element 1.2 is roller group；The locking member 1.3 is that activity is set in a manner of rotatable or be scalable
Put the fixed plate on the bottom plate 1.11.
The cleaning device 4 includes cleaning delivery port 4.1 and cleaning connecting tube, and the cleaning connecting tube connection is described clear
Wash delivery port 4.1 and cleaning pumping mechanism；The cleaning delivery port 4.1 is movably arranged on described by the Telescopic rotating single-piece
On bottom plate 1.11.
Using the concrete spreader of the present embodiment, detailed process is following (enumerating a kind of operating process herein)：
The parts such as dolly, feed pipe, connecting tube, discharge nozzle are assembled；
Walking mechanism drives dolly to run to the first station on walking track, locking member action, dolly is fixed on
Walk on track；
Telescopic oil cylinder and power part drive Telescopic rotating arm to carry out flexible and rotary motion respectively so that discharge nozzle moves
Docked to required position and grouting mouth fixing pipe；
Start the pumping mechanism of concrete, start transport concrete until grouting is completed herein；
Telescopic oil cylinder and power part drive Telescopic rotating arm to carry out flexible and rotary motion respectively so that discharge nozzle is with filling
Slurry mouth fixing pipe, which departs from, is back to original position, either so that discharge nozzle is docked with another grouting mouth fixing pipe, starts coagulation
The pumping mechanism of soil, starting transport concrete, (there are multiple grouting mouth fixing pipes in i.e. same station until grouting herein is completed
Situation, all grouting mouth fixing pipes of this station are in the milk successively respectively；If there are multiple discharge nozzles to be disposed in parallel in one
When in Telescopic rotating single-piece, the distance between multiple discharge nozzles can be arranged to it is two neighboring grouting mouth fixing pipe between away from
From identical, it can simultaneously realize and synchronous multiple grouting mouth fixing pipes are in the milk)；
Walking mechanism drives dolly to run to next station on walking track, repeats to act above, completes all grouting
The grouting operation of mouth.
In said process, Telescopic rotating device can drive as requested at any time connecting tube group transformation locus and
Distance, meet grouting demand.
In whole work progress, pipe-line system can be cleaned using cleaning device, specifically according to condition of construction
It is：Discharge nozzle group and cleaning connecting tube are attached, start pumping machine, purge gas or cleaning fluid are conveyed, to whole
Discharge nozzle group is cleaned.Using identical principle, feed pipe group and connecting tube group can accordingly be cleaned.
Using the concrete spreader of the present embodiment, effect is：Pump line is not changed manually, it is only necessary to which operating personnel easily grasp
Make the light docking that output end and receiving terminal can be achieved in extension and contraction control part and rotation-control members, concrete is assigned to institute
Position is needed to complete the cast of concrete；After the completion of one station, carriage walking to next station a, people can complete to operate,
The overall break period is short, and concrete, which is poured into a mould, to be influenceed and disturb less.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of concrete spreader, it is characterised in that including dolly (1), pipe-line system (2) and Telescopic rotating device (3)；
The dolly (1) includes car body (1.1), ground-engaging element (1.2) and the lock for the car body (1.1) to be fixed
Determine part (1.3), the car body (1.1) includes bottom plate (1.11)；
The pipe-line system (2) is included by the feed pipe group (2.1) on concrete transportation to the car body (1.1), by concrete
It is delivered to the discharge nozzle group (2.2) of grouting mouth fixing pipe (6) and for connecting the feed pipe group (2.1) and the discharge nozzle
The connecting tube group (2.3) of group (2.2), the feed pipe group (2.1) are connected with the pumping mechanism of concrete, the connecting tube group
(2.3) it is movably arranged on by the Telescopic rotating device (3) on the bottom plate (1.11), the Telescopic rotating device (3) is used
Flexible and rotary motion is carried out in driving the connecting tube group (2.3).
2. concrete spreader according to claim 1, it is characterised in that the feed pipe group (2.1) includes at least one
Root feed pipe, the discharge nozzle group (2.2) include an at least discharge nozzle, and the connecting tube group (2.3) includes an at least company
Adapter；The Telescopic rotating device (3) includes identical with the connecting tube quantity and corresponds what is set with the connecting tube
Telescopic rotating single-piece.
3. concrete spreader according to claim 2, it is characterised in that the feed pipe group (2.1) is sent including one
Expects pipe, the discharge nozzle group (2.2) include a discharge nozzle, and the connecting tube group (2.3) includes a connecting tube；It is described flexible
Rotating device (3) includes one and corresponds the Telescopic rotating single-piece set with the connecting tube.
4. concrete spreader according to claim 3, it is characterised in that the feed pipe is in flexible pipe and hard pipeline
At least one, the connecting tube is flexible pipe, and the discharge nozzle is hard pipeline, between the flexible pipe and the hard pipeline,
Company between two connected flexible pipes and between two connected hard pipelines by playing fixed and sealing function
Fitting is attached, and the connector is made up of pipe clamp and sealing ring.
5. concrete spreader according to claim 3, it is characterised in that the Telescopic rotating single-piece includes Telescopic rotating
Arm (3.1), extension and contraction control part and rotation-control members (3.2), the extension and contraction control part drive the Telescopic rotating arm
(3.1) stretched along its length, its one end is connected with the port of export of the connecting tube group (2.3), its other end and institute
State bottom plate (1.11) connection；The rotation-control members (3.2) drive the Telescopic rotating arm (3.1) to be rotated, its one end
It is connected with the port of export of the connecting tube group (2.3), its other end is connected with the bottom plate (1.11).
6. concrete spreader according to claim 5, it is characterised in that the Telescopic rotating arm (3.1) includes guide pillar
(3.11) and the lower end of the guide pin bushing (3.12), the guide pin bushing are inserted in guide pin bushing (3.12), the upper end of the guide pillar (3.11)
(3.12) upper end is connected with the port of export of the connecting tube group (2.3).
7. concrete spreader according to claim 5, it is characterised in that the extension and contraction control part includes flexible oil
At least one of cylinder, cylinder, Electrohydraulic push rod and helical screw；
The rotation-control members (3.2) include turnbarrel (3.21) and drive the turnbarrel (3.21) to be rotated
Power part, the turnbarrel (3.21) is movably arranged on the bottom plate (1.11) by support base (3.22).
8. concrete spreader according to claim 7, it is characterised in that the locking member (1.3) and the walking
Part (1.2) is integrated, and either, the ground-engaging element (1.2) is roller group；The locking member (1.3) be with
Rotatable or scalable mode is movably arranged on the fixed plate on the bottom plate (1.11).
9. concrete spreader according to claim 8, it is characterised in that the power part is motor, oil cylinder and liquid
At least one of pressure motor；The locking member (1.3) and the ground-engaging element (1.2) are the roller group with brake.
10. according to the concrete spreader described in claim 3-9 any one, it is characterised in that also including cleaning device
(4), the cleaning device (4) includes cleaning delivery port (4.1) and cleaning connecting tube, and the cleaning connecting tube connection is described clear
Wash delivery port (4.1) and cleaning pumping mechanism；The cleaning delivery port (4.1) is movably arranged on by the Telescopic rotating single-piece
On the bottom plate (1.11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454455.XU CN206928953U (en) | 2017-04-27 | 2017-04-27 | A kind of concrete spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720454455.XU CN206928953U (en) | 2017-04-27 | 2017-04-27 | A kind of concrete spreader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206928953U true CN206928953U (en) | 2018-01-26 |
Family
ID=61351014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720454455.XU Active CN206928953U (en) | 2017-04-27 | 2017-04-27 | A kind of concrete spreader |
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| Country | Link |
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| CN (1) | CN206928953U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798706A (en) * | 2017-04-27 | 2018-11-13 | 湖南五新隧道智能装备股份有限公司 | A kind of concrete spreader |
| CN111764656A (en) * | 2020-07-22 | 2020-10-13 | 江苏科技大学 | Crawler concrete spreader for high-rise building |
| CN111809876A (en) * | 2020-07-22 | 2020-10-23 | 江苏科技大学 | Track concrete spreader for wide platform |
-
2017
- 2017-04-27 CN CN201720454455.XU patent/CN206928953U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798706A (en) * | 2017-04-27 | 2018-11-13 | 湖南五新隧道智能装备股份有限公司 | A kind of concrete spreader |
| CN111764656A (en) * | 2020-07-22 | 2020-10-13 | 江苏科技大学 | Crawler concrete spreader for high-rise building |
| CN111809876A (en) * | 2020-07-22 | 2020-10-23 | 江苏科技大学 | Track concrete spreader for wide platform |
| CN111809876B (en) * | 2020-07-22 | 2021-10-15 | 江苏科技大学 | Track concrete spreader for wide platform |
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