CN210420790U - Civil engineering machine for laying materials - Google Patents

Civil engineering machine for laying materials Download PDF

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Publication number
CN210420790U
CN210420790U CN201921189610.5U CN201921189610U CN210420790U CN 210420790 U CN210420790 U CN 210420790U CN 201921189610 U CN201921189610 U CN 201921189610U CN 210420790 U CN210420790 U CN 210420790U
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China
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groups
sets
civil engineering
plate
rear side
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Expired - Fee Related
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CN201921189610.5U
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Chinese (zh)
Inventor
祝焕然
杨志年
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North China University of Science and Technology
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North China University of Science and Technology
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Priority to CN201921189610.5U priority Critical patent/CN210420790U/en
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Publication of CN210420790U publication Critical patent/CN210420790U/en
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Abstract

The utility model relates to the technical field of paving devices, in particular to a civil engineering mechanical device for paving materials; the height adjusting structure of the first scraper can be increased, the height of the first scraper can be adjusted according to the thickness of concrete to be paved, the use limitation of equipment is reduced, and the use reliability of the equipment is improved; including the backup pad, backup pad bottom right side is provided with the box, a serial communication port, still include four groups of threaded rods, all fixed screwed pipes that are provided with in four groups of bearings, first scraper blade top left front side, left rear side, right front side and right rear side respectively with four groups of threaded rod bottom rotatable coupling, four groups of screwed pipe lateral walls are all fixed and are provided with the sprocket, four groups of sprockets pass through chain circle transmission and connect, the fixed first bevel gear that is provided with of left front side screwed pipe lateral wall, the meshing of first bevel gear left end is provided with second bevel gear, the fixed first motor that is provided with in second bevel gear left end.

Description

Civil engineering machine for laying materials
Technical Field
The utility model relates to a technical field of device paves especially relates to a civil engineering mechanical device for paving material.
Background
The civil engineering mechanical device for paving materials is a device used for paving concrete in the process of road repair or construction, can provide convenience for the later operation of roads, and is widely used in the field of paving devices; the existing civil engineering mechanical device for paving materials comprises a supporting plate, wherein moving wheels are fixedly arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the supporting plate, a box body is arranged on the right side of the bottom end of the supporting plate, a cavity is arranged in the box body, an inlet pipe is communicated and arranged on the upper side of the left end of the box body, an outlet pipe is communicated and arranged at the bottom end of the box body, a first connecting hole is arranged on the right side of the top end of the supporting plate, the output end of the outlet pipe; when the civil engineering mechanical device for paving materials is used, concrete is conveyed into the cavity from the inlet pipe, the concrete is conveyed downwards from the outlet pipe, and after the concrete is conveyed to the top end of a road surface, the first scraper blade carries out scraping operation on the concrete; the civil engineering mechanical device for paving materials is found in use, when roads are built, concrete with different thicknesses is paved according to different roadbed requirements, the position of the first scraper is fixed, the thickness of the concrete is difficult to adjust, and the use limitation of equipment is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an increase altitude mixture control structure of first scraper blade, the thickness of paving the concrete as required highly adjusts first scraper blade, reduces the use limitation of equipment, improve equipment's the civil engineering machinery device that is used for paving the material of use reliability.
The utility model discloses a civil engineering machinery device for spreading material, including the backup pad, the left front side of backup pad bottom, left rear side, right front side and right rear side all are fixed and are provided with the removal wheel, and backup pad bottom right side is provided with the box, is provided with the working chamber in the box, and box left end upper side intercommunication is provided with the import pipe, and box bottom intercommunication is provided with the outlet pipe, and backup pad top right side is provided with first connecting hole, and the outlet pipe output passes first connecting hole, and backup pad left lower side is provided with first scraper blade; the novel scraper is characterized by further comprising four groups of threaded rods, four groups of second connecting holes are formed in the left side of the top end of the supporting plate, mounting holes are formed in the top ends of the four groups of second connecting holes in a communicated manner, bearings are fixedly arranged in the four groups of mounting holes, threaded pipes are fixedly arranged in the four groups of bearings, the bottom ends of the four groups of threaded rods are respectively screwed in the four groups of threaded pipes and penetrate through the four groups of second connecting holes, the left front side, the left rear side, the right front side and the right rear side of the top end of the first scraper are respectively and rotatably connected with the bottom ends of the four groups of threaded rods, chain wheels are fixedly arranged on the outer side walls of the four groups of threaded pipes, the four groups of chain wheels are in transmission connection through chain rings.
The civil engineering mechanical device for paving materials of the utility model is characterized in that the front side of the bottom end of a first scraper blade and the rear side of the bottom end are respectively provided with a second scraper blade, the lower side of the first scraper blade is provided with a placing cavity, the left side and the right side of the bottom end of the first scraper blade are respectively provided with a long hole, the left side and the right side of the top end of two groups of second scraper blades are respectively fixedly provided with a first connecting plate, the left side two groups of first connecting plates and the right side two groups of first connecting plates are respectively inserted into the placing cavity from the two groups of long holes, a gear roller is respectively arranged between the front side two groups of first connecting plates and the rear side two groups of first connecting plates, the left end and the right end of the two groups of gear rollers are respectively fixedly provided with a connecting shaft, the left end and the right end of the left side two groups of connecting shafts are respectively rotatably connected with the right end of the left side two groups of first, the left ends of the two groups of first connecting plates on the left side are provided with second motors, and the output ends of the two groups of second motors penetrate through the two groups of first connecting plates on the left side respectively and then are connected with the left ends of the two groups of connecting shafts on the left side respectively.
The utility model discloses a civil engineering mechanical device for spreading material still includes two sets of extension boards, and two sets of extension boards articulate respectively and set up in backup pad front end left side and front end rear side, and the rotatable last item that is provided with between two sets of extension boards, front side extension board front end are provided with the third motor, and the third motor output passes behind the front side extension board to be connected with the last item front end.
The utility model discloses a civil engineering mechanical device for spreading material still includes two sets of cylinders, and two sets of cylinders set up respectively in two sets of extension board bottoms, the fixed plate that is provided with between two sets of extension boards in left side, and two sets of cylinder right-hand members are articulated with fixed plate left end front side and left end rear side respectively, and two sets of cylinder outputs are articulated with two sets of extension board bottom right sides respectively.
The utility model discloses a civil engineering machinery device for paving material still includes the fourth motor, and the fourth motor sets up in the box top, is provided with the (mixing) shaft in the work cavity, and (mixing) shaft left end and right-hand member are all fixed and are provided with two sets of stirring teeth, and the (mixing) shaft top is passed and is connected with fourth motor output after the box top middle part, and box right-hand member upside is provided with the water pipe, and the water pipe intercommunication is provided with first valve.
The utility model discloses a civil engineering mechanical device for material paves, the outlet pipe is provided with the multiunit, and first connecting hole is provided with the multiunit, and multiunit outlet pipe input all communicates with working chamber bottom, and the first connecting hole of multiunit is passed respectively to multiunit outlet pipe bottom, and the multiunit outlet pipe all communicates and is provided with the second valve.
The utility model discloses a civil engineering mechanical device for paving material, two sets of threaded rod tops are all fixed and are provided with the limiting plate.
The utility model discloses a civil engineering mechanical device for paving material, the fixed setting plate that is provided with of backup pad right-hand member sets up the fixed two sets of couples that are provided with of board right-hand member.
Compared with the prior art, the beneficial effects of the utility model are that: the first motor drives the second bevel gear to rotate, the first bevel gear rotates along with the second bevel gear when the second bevel gear rotates, the left threaded pipe rotates along with the left threaded pipe, the left chain wheel rotates along with the left threaded pipe, the four groups of chain wheels rotate along with the chain wheels under the transmission action of the chain rings, the four groups of threaded pipes rotate along with the four threaded pipes, the four groups of threaded rods move downwards along with the four threaded rods, the height of the scraper can be adjusted when the scraper moves downwards, the use reliability of the equipment is improved, the thickness of concrete is paved as required, the height of the first scraper is adjusted, the use limitation of the equipment is reduced, and the use reliability of the equipment is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of the connecting structure of the pressing shaft and the support plate;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of portion B of FIG. 1;
FIG. 5 is an enlarged view of portion C of FIG. 1;
in the drawings, the reference numbers: 1. a support plate; 2. a moving wheel; 3. a box body; 4. an inlet pipe; 5. an outlet pipe; 6. a first squeegee; 7. a threaded rod; 8. a bearing; 9. a threaded pipe; 10. a sprocket; 11. a chain loop; 12. a first bevel gear; 13. a second bevel gear; 14. a first motor; 15. a second squeegee; 16. a first connecting plate; 17. a toothed roller; 18. a connecting shaft; 19. a rack plate; 20. a second motor; 21. a support plate; 22. pressing the shaft; 23. a third motor; 24. a cylinder; 25. a fourth motor; 26. a stirring shaft; 27. stirring teeth; 28. a water pipe; 29. a second valve; 30. a limiting plate; 31. a plate is provided.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the civil engineering mechanical device for paving materials of the utility model comprises a support plate 1, wherein moving wheels 2 are fixedly arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the support plate 1, a box body 3 is arranged on the right side of the bottom end of the support plate 1, a working chamber is arranged in the box body 3, an inlet pipe 4 is arranged on the upper side of the left end of the box body 3 in a communicating manner, an outlet pipe 5 is arranged on the bottom end of the box body 3 in a communicating manner, a first connecting hole is arranged on the right side of the top end of the support plate 1, the output end; it is characterized by also comprising four groups of threaded rods 7, wherein the left side of the top end of the support plate 1 is provided with four groups of second connecting holes, the top ends of the four groups of second connecting holes are respectively communicated with mounting holes, the four groups of mounting holes are respectively and fixedly provided with a bearing 8, the four groups of bearings 8 are respectively and fixedly provided with a threaded pipe 9, the bottom ends of the four groups of threaded rods 7 are respectively screwed and penetrate through the four groups of threaded pipes 9 and respectively penetrate through the four groups of second connecting holes, the left front side and the left rear side of the top end, the right front side and the right rear side are respectively rotatably connected with the bottom ends of the four groups of threaded rods 7, the outer side walls of the four groups of threaded pipes 9 are fixedly provided with chain wheels 10, the four groups of chain wheels 10 are in transmission connection through chain rings 11, the outer side wall of the left front side threaded pipe 9 is fixedly provided with a first bevel gear 12, the left end of the first bevel gear 12 is meshed with a second bevel gear 13, and the left end of the second bevel gear 13 is fixedly provided with a first motor 14; the first motor drives the second bevel gear to rotate, the first bevel gear rotates along with the second bevel gear when the second bevel gear rotates, the left threaded pipe rotates along with the left threaded pipe, the left chain wheel rotates along with the left threaded pipe, the four groups of chain wheels rotate along with the chain wheels under the transmission action of the chain rings, the four groups of threaded pipes rotate along with the four threaded pipes, the four groups of threaded rods move downwards along with the four threaded rods, the height of the scraper can be adjusted when the scraper moves downwards, the use reliability of the equipment is improved, the thickness of concrete is paved as required, the height of the first scraper is adjusted, the use limitation of the equipment is reduced, and the use reliability of the equipment is improved.
The civil engineering mechanical device for paving materials of the utility model is characterized in that the front side of the bottom end and the rear side of the bottom end of a first scraper 6 are both provided with a second scraper 15, the lower side of the first scraper 6 is provided with a placing cavity, the left side and the right side of the bottom end of the first scraper 6 are both provided with long holes, the left side of the top end and the right side of the two groups of second scrapers 15 are both fixedly provided with a first connecting plate 16, two groups of first connecting plates 16 at the left side and two groups of first connecting plates 16 at the right side are respectively inserted into the placing cavity from the two groups of long holes, a gear roller 17 is respectively arranged between the two groups of first connecting plates 16 at the front side and the two groups of first connecting plates 16 at the rear side, the left end and the right end of the two groups of gear rollers 17 are both fixedly provided with connecting shafts 18, the left end and the right end of the two groups of connecting shafts 18 at the left, the front end and the rear side of the top end of the rack plate 19 are respectively in meshing contact with the bottom ends of the two groups of toothed rollers 17, the left ends of the two groups of first connecting plates 16 on the left side are respectively provided with a second motor 20, and the output ends of the two groups of second motors 20 respectively penetrate through the two groups of first connecting plates 16 on the left side and then are respectively connected with the left ends of the two groups of connecting shafts 18 on the left side; two sets of second motors drive two sets of connecting axles in the left side and rotate, two sets of fluted rollers rotate along with the same, under the meshing effect of rack plate, two sets of fluted rollers move in the front-back direction along with the same, the turning directions of two sets of second motors are opposite and can be adjusted simultaneously, the positions of two sets of second scrapers move along with the same, the rear second scraper moves backwards along with the same when the front second scraper moves forwards, the arrangement of two sets of second scrapers can limit the concrete paved, and the phenomenon that the shapes of two sides are irregular is reduced.
The civil engineering mechanical device for paving materials of the utility model also comprises two groups of support plates 21, wherein the two groups of support plates 21 are respectively hinged on the left side of the front end and the rear side of the front end of the support plate 1, a press shaft 22 is rotatably arranged between the two groups of support plates 21, the front end of the front side support plate 21 is provided with a third motor 23, and the output end of the third motor 23 is connected with the front end of the press shaft 22 after passing through the front side support plate 21; the third motor drives the pressing shaft to rotate, and the pressing shaft can compact paved concrete while rotating, so that the existence of air in materials is reduced, and the use reliability of the equipment is improved.
The civil engineering mechanical device for paving materials of the utility model also comprises two groups of cylinders 24, wherein the two groups of cylinders 24 are respectively arranged at the bottom ends of the two groups of support plates 21, a fixed plate is fixedly arranged between the two groups of support plates 21 at the left side, the right ends of the two groups of cylinders 24 are respectively hinged with the front side and the rear side of the left end of the fixed plate, and the output ends of the two groups of cylinders 24 are respectively hinged with the right sides of the bottom ends of the two groups of support plates 21; the two groups of cylinders can drive the two groups of support plates to move up and down, and the height of the pressing shaft can be adjusted in the rotating process of the two groups of support plates, so that materials with different heights can be compacted.
The civil engineering mechanical device for paving materials of the utility model also comprises a fourth motor 25, the fourth motor 25 is arranged at the top end of the box body 3, a stirring shaft 26 is arranged in the working cavity, the left end and the right end of the stirring shaft 26 are both fixedly provided with two groups of stirring teeth 27, the top end of the stirring shaft 26 is connected with the output end of the fourth motor 25 after passing through the middle part of the top end of the box body 3, the upper side of the right end of the box body 3 is provided with a water pipe 28, and the water pipe 28 is communicated with and provided with; all transmit water and concrete material to the work intracavity, the fourth motor drives the (mixing) shaft and rotates, can drive the stirring tooth when the (mixing) shaft pivoted and rotate, can improve the stirring homogeneity of concrete, improve equipment's use reliability.
The utility model discloses a civil engineering mechanical device for paving material, outlet pipe 5 are provided with the multiunit, and first connecting hole is provided with the multiunit, and multiunit outlet pipe 5 input all communicates with the working chamber bottom, and multiunit outlet pipe 5 bottom passes multiunit first connecting hole respectively, and multiunit outlet pipe 5 all communicates and is provided with second valve 29; the arrangement of the plurality of groups of outlet pipes can increase the outlet position and improve the uniformity of discharging.
In the civil engineering mechanical device for paving materials, the top ends of the two groups of threaded rods 7 are both fixedly provided with the limiting plates 30; the limiting plate can be used for limiting the threaded rod, and the phenomenon of downward threaded slipping of the threaded rod is reduced.
The utility model discloses a civil engineering machinery device for paving material, the right-hand member of the supporting plate 1 is fixedly provided with a setting plate 31, and the right-hand member of the setting plate 31 is fixedly provided with two groups of hooks; when the material is paved, the hook can be hung at the rear end of the vehicle body, so that the pushing of manpower is reduced.
The utility model discloses a civil engineering machinery device for spreading material, when it uses, when carrying out the material and spread, can hang the couple in automobile body rear end, reduce the promotion of manpower, all transmit water and concrete material to the work intracavity, the fourth motor drives the (mixing) shaft and rotates, the (mixing) shaft can be driven to stir the tooth and rotate when rotating, can improve the stirring homogeneity of concrete, the setting of multiunit outlet pipe can increase the exit position, concrete transmission to road surface top, the material volume that paves as required adjusts the height of first scraper blade and the position of two sets of second scraper blades, first motor drives second bevel gear and rotates, first bevel gear rotates thereupon when second bevel gear rotates, left side screwed pipe rotates thereupon, left side sprocket rotates thereupon, under the transmission of chain circle, four group's sprocket rotates thereupon, the four groups of threaded pipes rotate along with the threaded pipes, the four groups of threaded rods move downwards along with the threaded pipes, the scraping plates move downwards along with the threaded pipes, the height of the scraping plates can be adjusted, the height of the first scraping plate can be adjusted according to the thickness of concrete to be paved, the two groups of second motors drive the two groups of connecting shafts on the left side to rotate, the two groups of toothed rollers rotate along with the toothed rollers, the two groups of toothed rollers move in the front-back direction under the meshing action of the rack plates, the steering directions of the two groups of second motors are opposite and can be adjusted at the same time, the positions of the two groups of second scraping plates move along with the threaded pipes, the front side second scraping plate moves forwards along with the toothed rollers, the rear side second scraping plate moves backwards along with the toothed rollers, and the two, the height of the pressing shaft is adjusted according to the paving height, the two groups of cylinders can drive the two groups of support plates to move in the vertical direction, the height of the pressing shaft can be adjusted in the rotating process of the two groups of support plates, the third motor drives the pressing shaft to rotate, the paved concrete can be compacted when the pressing shaft rotates, and the existence of air in the material is reduced.
The civil engineering mechanical device for paving materials of the utility model adopts common mechanical modes such as installation mode, connection mode or setting mode, and can be implemented as long as the beneficial effects are achieved; and its motor and cylinder all take control module and electric wire certainly, insert the electricity and can use, do not change its inner structure, and take the service instruction certainly, and relevant field technical personnel accessible service instruction uses.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A civil engineering mechanical device for paving materials comprises a supporting plate (1), wherein moving wheels (2) are fixedly arranged on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the supporting plate (1), a box body (3) is arranged on the right side of the bottom end of the supporting plate (1), a working cavity is arranged in the box body (3), an inlet pipe (4) is communicated and arranged on the upper side of the left end of the box body (3), an outlet pipe (5) is communicated and arranged at the bottom end of the box body (3), a first connecting hole is formed in the right side of the top end of the supporting plate (1), the output end of the outlet pipe (5) penetrates through the first connecting hole; the device is characterized by also comprising four groups of threaded rods (7), wherein the left side of the top end of the support plate (1) is provided with four groups of second connecting holes, the top ends of the four groups of second connecting holes are respectively communicated with mounting holes, the four groups of mounting holes are respectively and fixedly provided with bearings (8), the four groups of bearings (8) are respectively and fixedly provided with threaded pipes (9), the bottom ends of the four groups of threaded rods (7) are respectively and spirally mounted through the four groups of threaded pipes (9) and respectively pass through the four groups of second connecting holes, the left front side, the left rear side, the right front side and the right rear side of the top end of the first scraper (6) are respectively and rotatably connected with the bottom ends of the four groups of threaded rods (7), the outer side walls of the four groups of threaded pipes (9) are respectively and fixedly provided with chain wheels (10), the four groups of chain wheels (10) are in transmission connection through chain rings (11), the outer side, a first motor (14) is fixedly arranged at the left end of the second bevel gear (13).
2. The civil engineering machine for spreading materials according to claim 1, wherein the first scraper (6) is provided with second scrapers (15) at the front side of the bottom end and at the rear side of the bottom end, the first scraper (6) is provided with a placing cavity at the lower side thereof, the first scraper (6) is provided with elongated holes at the left side of the bottom end and at the right side thereof, two sets of second scrapers (15) are fixedly provided with first connecting plates (16) at the left side of the top end and at the right side of the top end, two sets of left first connecting plates (16) and two sets of right first connecting plates (16) are respectively inserted into the placing cavity from the two sets of elongated holes, rollers (17) are respectively provided between the two sets of front first connecting plates (16) and the two sets of rear first connecting plates (16), connecting shafts (18) are respectively provided at the left end and the right end of the two sets of left connecting shafts (18), and two sets of left end and right end of left connecting shafts (18) are respectively connected with the two sets of left first ) Left end rotatable coupling places fixed rack plate (19) that is provided with in chamber bottom middle part, rack plate (19) top front end and top rear side respectively with two sets of fluted roller (17) bottom meshing contact, two sets of first connecting plate (16) left ends in left side all are provided with second motor (20), two sets of second motor (20) output pass respectively behind the two sets of first connecting plate (16) in left side respectively with the two sets of connecting axle (18) left ends in left side be connected.
3. Civil engineering machinery arrangement for spreading material according to claim 2, characterised in that it further comprises two sets of brackets (21), two sets of brackets (21) are respectively arranged at the left side of the front end of the support plate (1) and at the rear side of the front end, a pressing shaft (22) is rotatably arranged between the two sets of brackets (21), the front end of the front bracket (21) is provided with a third motor (23), and the output end of the third motor (23) passes through the front bracket (21) and then is connected with the front end of the pressing shaft (22).
4. Civil engineering machine for spreading materials according to claim 3, characterised in that it comprises two sets of cylinders (24), the two sets of cylinders (24) being respectively arranged at the bottom ends of the two sets of plates (21), the left set of plates (21) being fixed with the fixed plate between them, the right ends of the two sets of cylinders (24) being respectively hinged to the front side and the rear side of the left end of the fixed plate, the output ends of the two sets of cylinders (24) being respectively hinged to the right side of the bottom ends of the two sets of plates (21).
5. Civil engineering machinery arrangement for spreading materials according to claim 4, characterised in that it further comprises a fourth electric motor (25), the fourth electric motor (25) is arranged on the top of the box (3), a stirring shaft (26) is arranged in the working chamber, both the left and right ends of the stirring shaft (26) are fixedly provided with two groups of stirring teeth (27), the top end of the stirring shaft (26) is connected with the output end of the fourth electric motor (25) after passing through the middle part of the top end of the box (3), a water pipe (28) is arranged on the upper side of the right end of the box (3), and the water pipe (28) is connected with the first valve.
6. Civil engineering machine for spreading material according to claim 5, characterised in that the outlet pipes (5) are provided with a plurality of groups, the first connection holes are provided with a plurality of groups, the input ends of the outlet pipes (5) of the plurality of groups are all in communication with the bottom end of the working chamber, the bottom ends of the outlet pipes (5) of the plurality of groups respectively pass through the first connection holes of the plurality of groups, and the outlet pipes (5) of the plurality of groups are all in communication with the second valve (29).
7. Civil engineering machine for spreading material according to claim 6, characterised in that a stop plate (30) is fixed on the top of each set of threaded rods (7).
8. Civil engineering machine for spreading material according to claim 7, characterised in that the support plate (1) is provided with a setting plate (31) fixed to the right and in that the setting plate (31) is provided with two sets of hooks fixed to the right.
CN201921189610.5U 2019-07-29 2019-07-29 Civil engineering machine for laying materials Expired - Fee Related CN210420790U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921189610.5U CN210420790U (en) 2019-07-29 2019-07-29 Civil engineering machine for laying materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921189610.5U CN210420790U (en) 2019-07-29 2019-07-29 Civil engineering machine for laying materials

Publications (1)

Publication Number Publication Date
CN210420790U true CN210420790U (en) 2020-04-28

Family

ID=70383073

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921189610.5U Expired - Fee Related CN210420790U (en) 2019-07-29 2019-07-29 Civil engineering machine for laying materials

Country Status (1)

Country Link
CN (1) CN210420790U (en)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200428

Termination date: 20210729

CF01 Termination of patent right due to non-payment of annual fee