CN111441220A - Construction machinery is built on view gardens road surface - Google Patents
Construction machinery is built on view gardens road surface Download PDFInfo
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- CN111441220A CN111441220A CN202010306077.7A CN202010306077A CN111441220A CN 111441220 A CN111441220 A CN 111441220A CN 202010306077 A CN202010306077 A CN 202010306077A CN 111441220 A CN111441220 A CN 111441220A
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- plate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
Abstract
The invention relates to a landscape garden pavement construction machine which comprises a containing frame, a rotating motor, a material guide roller, a rotating support plate, a telescopic plate and a spreading mechanism, wherein the containing frame is of a hollow structure, the lower side of the right end of the containing frame is of an inclined structure, the upper end of the containing frame is of a flaring structure, the material guide roller is distributed in the upper end of the containing frame, the outer end of the material guide roller penetrates through the containing frame, the front end of the material guide roller is connected with an output shaft of the rotating motor through a coupler, the rotating motor is arranged on the front side surface of the containing frame through a motor sleeve, and the rear end of the material guide roller is connected with the rotating support plate through a bearing. The invention can solve the problems existing in the prior cobble paving process that: manually dumping the cobblestones cannot ensure the dumping uniformity of the cobblestones, and the cobblestones are often piled and clamped in a container due to an oval structure, so that the cobblestones need to be manually and often shifted; the dumping speed and the dumping density of the cobblestones can not be effectively controlled.
Description
Technical Field
The invention relates to the field of garden construction, in particular to a landscape garden pavement construction machine.
Background
The landscape garden pavement is usually paved with cobblestones, and the cobblestone pavement can not only increase the beauty of the pavement but also increase the human body balance ability and the flexibility of the body.
The cobblestone is an oval-shaped pure natural stone material, thereby the cobblestone surface makes the cobblestone have certain roll nature for the smooth surface, the cobblestone road surface needs to carry out leveling treatment with the road bed on road surface before laying, later set up the bed course on the road bed, then lay on the bed course of road bed that the cobblestone is even, the laying of cobblestone is generally placed the cobblestone in the container, make on the cobblestone can the landing road surface through empting the container, the problem that exists when current cobblestone is laid is as follows:
1. manually dumping the cobblestones cannot ensure the dumping uniformity of the cobblestones, and the cobblestones are often piled and clamped in a container due to an oval structure, so that the cobblestones need to be manually and often shifted;
2. the dumping speed and the dumping density of the cobblestones cannot be effectively controlled, so that the cobblestone pavement construction effect is poor.
Disclosure of Invention
In order to solve the problems, the invention provides a landscape garden pavement construction machine which comprises a containing frame, a rotating motor, a material guide roller, a rotating support plate, a telescopic plate and a spreading mechanism, wherein the containing frame is of a hollow structure, the lower side of the right end of the containing frame is of an inclined structure, the upper end of the containing frame is of a flaring structure, the material guide roller is distributed in the middle of the upper end of the containing frame, the outer end of the material guide roller penetrates through the containing frame, the front end of the material guide roller is connected with an output shaft of the rotating motor through a coupler, the rotating motor is arranged on the front side surface of the containing frame through a motor sleeve, the rear end of the material guide roller is connected with the rotating support plate through a bearing, the rotating support plate is arranged on the rear side surface of the containing frame, the lower end of the left side of the containing frame is provided with a square notch, the lower side surface of the left end of the containing frame is connected with the upper end, the cobblestones can fall uniformly when a cobblestone road is paved, so that the cobblestones can fall uniformly on a pavement to be paved, firstly, the cobblestones are placed in the upper end of the containing frame, the material guide roller can be driven to stir the cobblestones downwards through the rotation of the rotating motor, when the cobblestones slide to the position of the spreading mechanism along the inclined surface structure of the containing frame, the spreading mechanism can limit the cobblestones, the cobblestones are stacked on the right side of the spreading mechanism, and the cobblestones can slide down uniformly from a gap between the spreading mechanism and the containing frame, so that the sliding uniformity of the cobblestones is improved.
The utility model discloses a contain frame, including left surface, regulating support plate, adjusting bolt, mechanism, adjusting bolt, adjusting plate and adjusting bolt, the upper end left surface of left surface middle part and the expansion plate on install respectively and adjust extension plate and follow-up plate, adjusting support plate is connected with adjusting bolt's middle part through screw-thread fit's mode, adjusting bolt's lower extreme passes through the bearing and installs on the top of follow-up plate, during concrete work, the height of expansion plate can be adjusted through adjusting bolt's rotation for the expansion plate can stretch out and draw back in the contain frame, the mechanism can remove thereupon for the smooth share when.
The spreading mechanism comprises a spreading frame, telescopic rods, telescopic springs, spreading plates, a sliding plate, a reset spring and a spring support plate, the left end of the spreading frame is mounted on the right side face of the telescopic plates, the telescopic rods are uniformly mounted on the spreading frame from front to back in a sliding fit mode, the spreading plates are mounted at the lower ends of the telescopic rods, the telescopic springs are arranged on the outer sides of the lower ends of the telescopic rods, and the telescopic springs are mounted between the spreading frame and the spreading plates;
the sliding plate is located the downside of spreading out the board, the position at both ends all is provided with a spout around the lateral wall corresponds the spreading out board around of splendid attire frame, the outer end of spreading out the board is provided with the sliding block, the sliding block passes the spout that sets up on the splendid attire frame, a reset spring is all installed to the right-hand member of every sliding block, reset spring's right-hand member passes through the spring extension board and installs on the side of splendid attire frame, concrete during operation, spreading out mechanism can flatten the cobblestone and handle, the cobblestone can be followed the downward landing in clearance between spreading out the board and the splendid attire frame, the sliding block of sliding plate outer end can drive the sliding plate horizontal slip under the effect of external force, the horizontal slip of sliding plate can prevent that the cobblestone from piling up the unable downward landing in the right side of spreading out the board.
As a preferred technical scheme of the invention, the outer side surface of the material guide roller is symmetrically provided with material guide rods, the outer ends of the material guide rods are of arc structures, the left inner wall and the right inner wall of the upper end of the containing frame are respectively provided with a leakage-proof bulge, the inner ends of the leakage-proof bulges are of arc structures, and the material guide rods are matched with the leakage-proof bulges so that cobblestones can only slide downwards from the right side of the containing frame.
As a preferable technical scheme of the invention, the spreading plate and the sliding plate are parallel to the inclined structure at the lower side of the right end of the containing frame, and the arrangement enables the cobbles to uniformly slide down from the lower end of the spreading plate.
As a preferred technical solution of the present invention, the upper and lower ends of the sliding plate are both of a pointed structure, the spreading plate is of an L-type structure, and the right end of the spreading plate is provided with a chute, the pointed structures at the two ends of the sliding plate facilitate the sliding plate to be inserted into the bottom of the cobblestones, so as to increase the moving smoothness of the cobblestones, and the chute at the right end of the spreading plate can guide the cobblestones, thereby preventing the cobblestones from being accumulated on the right side of the spreading plate and being unable to slide down.
As a preferred technical scheme of the invention, the spreading frame is of an L-shaped structure, the upper side and the lower side of the left end of the spreading frame are both mounted on the right side surface of the telescopic plate, the two ends of the spreading frame are both mounted on the telescopic plate to increase the stability of the spreading frame, the side edge of the spreading frame and the side edge of the spreading plate are arranged in parallel, the spreading frame and the side edge of the spreading plate are arranged in parallel to enable the spreading plate to perform telescopic motion under the action of external force, the telescopic motion of the spreading plate can increase the sliding effect of cobblestones, and the problem that oval cobblestones are stacked mutually and cannot slide is solved.
According to a preferred technical scheme, a poking motor is arranged on the right side of the lower end of the containing frame, the poking motor is a double-shaft output motor, the poking motor is mounted on the containing frame through a motor sleeve, a poking rod is mounted on each output shaft of the poking motor through a coupler, a poking disc is mounted on the outer end of each poking rod, poking rods are symmetrically arranged on the outer side face of each poking disc, the outer ends of the poking rods are of an arc-shaped structure, the poking rods on the upper ends of the poking discs are located above sliding blocks, the poking rods on the poking discs can be driven to rotate by the rotation of the poking motors, the poking rods can drive the sliding blocks to circularly slide left and right, and then cobblestones at the lower ends of the.
As a preferred technical scheme of the invention, the left end of the sliding block is provided with a roller groove, a sliding roller is arranged in the roller groove of the sliding block, the position of the sliding roller corresponds to the position of a shifting lever arranged on a shifting disc, and the sliding roller can automatically roll when contacting the shifting lever, so that the shifting lever is prevented from being clamped on the sliding block and being incapable of shifting the shifting lever.
As a preferable technical scheme of the invention, the front end and the rear end of the top surface of the sliding plate are respectively provided with a lifting rod, the right side surface of the upper end of each lifting rod is of an inclined structure, the lower side surface of the left end of the spreading plate is provided with a chute corresponding to the inclined structure of the lifting rod, and the lifting rod can lift the spreading plate upwards when the sliding plate moves rightwards, so that the shifting effect of the sliding plate on cobbles is improved.
The invention has the beneficial effects that:
the pebbles can be placed and uniformly stirred downwards, so that the pebbles can be uniformly laid on the ground, the discharge amount and the conveying speed of the pebbles can be adjusted, and the falling uniformity of the pebbles can be ensured aiming at the road surfaces with different pebble laying densities, so that the laying effect of the pebble road surface is improved;
the rotation speed of the rotating motor is adjusted to change the conveying speed of the cobblestones, and the cobblestones can only slide down from the right side of the containing frame due to the matching of the material guiding rods on the material guiding rollers and the anti-leakage bulges;
thirdly, the height of the telescopic plate can be adjusted through rotation of the adjusting bolt, so that the telescopic plate can be stretched in the containing frame, and the leveling mechanism can move along with the telescopic plate when the height of the telescopic plate is adjusted, so that the sliding amount of cobblestones is adjusted;
fourthly, the poking rod on the poking disc can be driven to rotate by the rotation of the poking motor, the poking rod can drive the sliding block to circularly slide left and right, so that cobblestones at the lower end of the spreading plate are poked by the sliding plate arranged at the inner end of the sliding block, and the lifting rod can lift the spreading plate upwards when the sliding plate moves rightwards, so that the moving smoothness degree of the cobblestones is increased;
fifthly, the chute at the right end of the spreading plate can guide cobblestones, and the cobblestones are prevented from being accumulated on the right side of the spreading plate and cannot slide downwards.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a first configuration of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
FIG. 3 is a schematic view of a third construction of the present invention;
FIG. 4 is an enlarged view of the portion A of FIG. 3;
fig. 5 is a cross-sectional view of the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 5, a landscape garden pavement construction machine comprises a containing frame 1, a rotating motor 2, a material guiding roller 3, a rotating support plate 4, a telescopic plate 5 and a spreading mechanism 6, wherein the containing frame 1 is of a hollow structure, the lower side of the right end of the containing frame 1 is of an inclined structure, the upper end of the containing frame 1 is of a flaring structure, the material guiding roller 3 is distributed in the upper end of the containing frame 1, the outer end of the material guiding roller 3 penetrates through the containing frame 1, the front end of the material guiding roller 3 is connected with an output shaft of the rotating motor 2 through a coupler, the rotating motor 2 is arranged on the front side surface of the containing frame 1 through a motor sleeve, the rotating speed of the rotating motor 2 is adjusted to change the conveying speed of cobblestones, the rear end of the material guiding roller 3 is connected with the rotating support plate 4 through a bearing, the rotating support plate 4 is arranged on the rear side surface of the containing frame 1, the lower end of the left side of the, the invention relates to a cobblestone paving device, which is characterized in that the lower side surface of the left end of a containing frame 1 is connected with the upper end of a telescopic plate 5 in a sliding fit mode, and a paving mechanism 6 is arranged on the telescopic plate 5, cobblestones can fall uniformly when a cobblestone road is paved, so that the cobblestones can fall uniformly on a pavement to be paved, firstly, the cobblestones are placed in the upper end of the containing frame 1, the guide roller 3 can be driven to stir the cobblestones downwards through the rotation of a rotating motor 2, when the cobblestones slide to the paving mechanism 6 along the inclined surface structure of the containing frame 1, the paving mechanism 6 can limit the cobblestones, the cobblestones are stacked on the right side of the paving mechanism 6, and the cobblestones can slide down uniformly from the gap between the paving mechanism 6 and the containing frame 1, so that the sliding uniformity of the cobblestones is increased.
The lateral surface of guide roller 3 on the symmetry be provided with guide rod 31, guide rod 31's outer end is the arc structure, all is provided with the protruding 14 of leak protection on the inner wall about the upper end of splendid attire frame 1, the protruding 14 inner of leak protection is the arc structure, guide rod 31 cooperatees with the protruding 14 of leak protection and makes the cobble follow the downward landing in right side of splendid attire frame 1 only.
The left surface middle part of splendid attire frame 1 and the upper end left surface of expansion plate 5 on install respectively and adjust extension board 11 and follow-up plate 12, adjust extension board 11 and be connected with adjusting bolt 13's middle part through screw-thread fit's mode, adjusting bolt 13's lower extreme passes through the bearing and installs on follow-up plate 12's top, concrete during operation, the height of expansion plate 5 can be adjusted through adjusting bolt 13's rotation, make expansion plate 5 can stretch out and draw back in splendid attire frame 1, mechanism 6 can remove thereupon for the smooth share when expansion plate 5 carries out the altitude mixture control, make the landing volume of cobblestone obtain adjusting.
The spreading mechanism 6 comprises a spreading frame 61, an expansion link 62, an expansion spring 63, a spreading plate 64, a sliding plate 65, a return spring 66 and a spring support plate 67, wherein the left end of the spreading frame 61 is installed on the right side surface of the expansion plate 5, the expansion links 62 are evenly installed on the spreading frame 61 from front to back in a sliding fit mode, the spreading plate 64 is installed on the lower end of the expansion link 62, the expansion spring 63 is arranged on the outer side of the lower end of each expansion link 62, and the expansion spring 63 is installed between the spreading frame 61 and the spreading plate 64;
the sliding plate 65 is positioned at the lower side of the spreading plate 64, the front and back side walls of the containing frame 1 are respectively provided with a sliding groove corresponding to the front and back ends of the spreading plate 64, the outer end of the spreading plate 64 is provided with a sliding block 68, the sliding block 68 passes through the sliding grooves arranged on the containing frame 1, the right end of each sliding block 68 is provided with a return spring 66, the right end of each return spring 66 is arranged on the side surface of the containing frame 1 through a spring support plate 67, during the specific work, mechanism 6 can shakeouts the processing to the cobblestone, and the cobblestone can be followed the downward landing in clearance between spreading plate 64 and the splendid attire frame 1, and the sliding block 68 of sliding plate 65 outer end can drive sliding plate 65 horizontal slip under the effect of external force, and the horizontal slip of sliding plate 65 can prevent that the cobblestone from piling up the unable landing downwards in spreading plate 64's right side, and reset spring 66 can drive spreading plate 64 through sliding block 68 and reply initial position.
The spreading plate 64 and the sliding plate 65 are parallel to the inclined structure of the lower side of the right end of the containing frame 1, and the arrangement enables the cobblestones to slide downwards from the lower end of the spreading plate 64 uniformly.
The lower extreme right side of splendid attire frame 1 be provided with toggle motor 15, toggle motor 15 is biax output motor, toggle motor 15 passes through the motor cover to be installed on splendid attire frame 1, all install a poking rod 16 through the shaft coupling on every output shaft of toggle motor 15, install poking disk 17 on poking rod 16's the outer end, the symmetry is provided with the driving lever on poking disk 17's the lateral surface, the outer end of driving lever is the arc structure, and the driving lever of poking disk 17 upper end is located the top of sliding block 68, toggle motor 15's rotation can drive the driving lever on the poking disk 17 and rotate, the driving lever can drive sliding block 68 and circulate horizontal slip, make sliding plate 65 of sliding block 68 inner installation stir the cobblestone of smooth and easy degree of removal of the further increase cobblestone.
The left end of the sliding block 68 is provided with a roller groove, a sliding roller 69 is arranged in the roller groove of the sliding block 68, the position of the sliding roller 69 corresponds to the position of a shifting lever arranged on the shifting disc 17, the sliding roller 69 can automatically roll when contacting the shifting lever, and the shifting lever is prevented from being clamped on the sliding block 68 and being incapable of shifting the shifting lever.
The front end and the rear end of the top surface of the sliding plate 65 are respectively provided with a lifting rod 651, the right side face of the upper end of each lifting rod 651 is of an inclined structure, the lower side face of the left end of the spreading plate 64 is provided with a chute corresponding to the inclined structure of the lifting rod 651, and the lifting rods 651 can lift the spreading plate 64 upwards when the sliding plate 65 moves rightwards, so that the shifting effect of the sliding plate 65 on cobblestones is increased.
The upper end and the lower end of the sliding plate 65 are both of a pointed structure, the spreading plate 64 is of an L-shaped structure, the right end of the spreading plate 64 is provided with a chute, the pointed structures at the two ends of the sliding plate 65 are convenient for the sliding plate 65 to be inserted into the bottom of cobblestones, the moving smoothness of the cobblestones is increased, the chute at the right end of the spreading plate 64 can guide the cobblestones, and the cobblestones are prevented from being accumulated on the right side of the spreading plate 64 and cannot slide downwards.
The smooth frame 61 be L type structure, both sides are all installed on the right flank of expansion plate 5 about the left end of smooth frame 61, the both ends of smooth frame 61 are all installed and are increased smooth frame 61's stability on expansion plate 5, smooth frame 61's side and smooth plate 64's side parallel arrangement, smooth frame 61 makes smooth plate 64 can carry out concertina movement under the effect of external force with smooth plate 64's side parallel arrangement, smooth plate 64's concertina movement can increase the slip effect of cobblestone, the problem that oval cobblestone piles up unable landing each other is solved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a landscape garden pavement constructs construction machinery, includes splendid attire frame (1), rotates motor (2), guide roller (3), rotates extension board (4), expansion plate (5) and mechanism (6) of equalling divide, its characterized in that: the packaging structure is characterized in that the containing frame (1) is of a hollow structure, the lower side of the right end of the containing frame (1) is of an inclined structure, the upper end of the containing frame (1) is of a flaring structure, the material guide rollers (3) are distributed in the upper end of the containing frame (1), the outer ends of the material guide rollers (3) penetrate through the containing frame (1), the front ends of the material guide rollers (3) are connected with an output shaft of a rotating motor (2) through a coupler, the rotating motor (2) is installed on the front side surface of the containing frame (1) through a motor sleeve, the rear ends of the material guide rollers (3) are connected with a rotating support plate (4) through a bearing, the rotating support plate (4) is installed on the rear side surface of the containing frame (1), the lower end of the left side of the containing frame (1) is provided with a square notch, the lower side surface of the left end of the containing frame (1) is connected with the upper end of a telescopic plate (5) in a sliding fit mode; wherein:
an adjusting support plate (11) and a follow-up plate (12) are respectively arranged on the middle of the left side surface of the containing frame (1) and the left side surface of the upper end of the telescopic plate (5), the adjusting support plate (11) is connected with the middle of an adjusting bolt (13) in a thread fit mode, and the lower end of the adjusting bolt (13) is arranged on the top of the follow-up plate (12) through a bearing;
the spreading mechanism (6) comprises a spreading frame (61), telescopic rods (62), telescopic springs (63), spreading plates (64), a sliding plate (65), a return spring (66) and a spring support plate (67), wherein the left end of the spreading frame (61) is installed on the right side surface of the telescopic plate (5), the telescopic rods (62) are evenly installed on the spreading frame (61) in a sliding fit mode from front to back, the spreading plates (64) are installed on the lower ends of the telescopic rods (62), the telescopic springs (63) are arranged on the outer sides of the lower ends of the telescopic rods (62), and the telescopic springs (63) are installed between the spreading frame (61) and the spreading plates (64);
sliding plate (65) are located the downside of flat board (64), the position that the front and back lateral wall of splendid attire frame (1) corresponds the front and back both ends of flat board (64) all is provided with a spout, the outer end of flat board (64) is provided with sliding block (68), sliding block (68) pass the spout that sets up on splendid attire frame (1), reset spring (66) are all installed to the right-hand member of every sliding block (68), the right-hand member of reset spring (66) is passed through spring extension board (67) and is installed on the side of splendid attire frame (1).
2. The landscape architecture pavement construction machinery according to claim 1, wherein: the lateral surface of guide roller (3) on the symmetry be provided with guide rod (31), the outer end of guide rod (31) is the arc structure, all be provided with leak protection arch (14) on the inner wall about the upper end of splendid attire frame (1), the inner of leak protection arch (14) is the arc structure.
3. The landscape architecture pavement construction machinery according to claim 1, wherein: the spreading plate (64) and the sliding plate (65) are parallel to the inclined structure at the lower side of the right end of the containing frame (1).
4. The landscape architecture pavement construction machine according to claim 3, wherein the upper and lower ends of the sliding plate (65) are both of a pointed structure, the spreading plate (64) is of an L type structure, and the right end of the spreading plate (64) is provided with a chute.
5. The landscape architecture pavement construction machine according to claim 4, wherein the spreading frame (61) is of L type structure, the upper and lower sides of the left end of the spreading frame (61) are both installed on the right side surface of the expansion plate (5), and the side edge of the spreading frame (61) is arranged in parallel with the side edge of the spreading plate (64).
6. The landscape architecture pavement construction machinery according to claim 1, wherein: the lower extreme right side of splendid attire frame (1) be provided with toggle motor (15), toggle motor (15) are biax output motor, toggle motor (15) are installed on splendid attire frame (1) through the motor cover, all install one poker rod (16) through the shaft coupling on every output shaft of toggle motor (15), install dial dish (17) on the outer end of poker rod (16), the symmetry is provided with the driving lever on the lateral surface of dial dish (17), the outer end of driving lever is the arc structure, and the driving lever of dial dish (17) upper end is located the top of sliding block (68).
7. The landscape architecture pavement construction machine according to claim 6, wherein: the left end of the sliding block (68) is provided with a roller groove, a sliding roller (69) is installed in the roller groove of the sliding block (68), and the position of the sliding roller (69) corresponds to the position of a shifting lever arranged on the shifting disc (17).
8. The landscape architecture pavement construction machinery according to claim 1, wherein: the front end and the rear end of the top surface of the sliding plate (65) are respectively provided with a lifting rod (651), the right side surface of the upper end of each lifting rod (651) is of an inclined structure, and the lower side surface of the left end of the spreading plate (64) is provided with a chute corresponding to the inclined structure of the lifting rods (651).
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|---|---|---|---|
| CN202010306077.7A CN111441220B (en) | 2020-04-17 | 2020-04-17 | Construction machinery is built on view gardens road surface |
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|---|---|---|---|
| CN202010306077.7A CN111441220B (en) | 2020-04-17 | 2020-04-17 | Construction machinery is built on view gardens road surface |
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| CN111441220B CN111441220B (en) | 2021-11-16 |
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| CN112252124A (en) * | 2020-10-13 | 2021-01-22 | 李碰 | Road paving device capable of changing position and shape of cobblestones |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252124A (en) * | 2020-10-13 | 2021-01-22 | 李碰 | Road paving device capable of changing position and shape of cobblestones |
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| CN111441220B (en) | 2021-11-16 |
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