CN205188777U - Bituminous pavement comprehensive maintenance truck - Google Patents
Bituminous pavement comprehensive maintenance truck Download PDFInfo
- Publication number
- CN205188777U CN205188777U CN201520724562.0U CN201520724562U CN205188777U CN 205188777 U CN205188777 U CN 205188777U CN 201520724562 U CN201520724562 U CN 201520724562U CN 205188777 U CN205188777 U CN 205188777U
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- Prior art keywords
- asphalt
- heater
- bituminous pavement
- upset
- comprehensive
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- Withdrawn - After Issue
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Abstract
The utility model discloses a bituminous pavement comprehensive maintenance truck, including caring the car the body, the body of caring the car include the auttombilism room, with the vehicle chassis that the auttombilism room links to each other, its characterized in that: the vehicle chassis front end is equipped with the hoist, just the vehicle chassis surface still is equipped with the sub vehicle frame, from preceding road roller, tip truck, cutting machine, pitch sprinkler and the upset furnace body device of being equipped with in proper order after to on the sub vehicle frame, upset furnace body device one side still is equipped with pitch reclaimed materials heating device. Compared with the prior art, the utility model discloses be equipped with the maintenance of equipment of various bituminous paving on the sub vehicle frame, make the utility model discloses the function is comprehensive, and versatility is strong, moves in a flexible way swiftly, and easy operation reduces the maintenance cost, the damaged road surface of high efficiency ground await your reply, and the reliable repair to multiple way diseases such as road surface hole groove, cracks can be realized to the whole car, is the comprehensive strong bituminous pavement comprehensive maintenance truck of a section, has good social and economic benefits.
Description
Technical field
The utility model relates to Asphalt Pavement Maintenance Technology field, is specifically related to a kind of comprehensive maintaining vehicle for bituminous pavement.
Background technology
Along with the fast development of highway in China building cause, the particularly continuous lengthening of speedway mileage open to traffic, the speed increased is considerably beyond the expectation of people, the mechanization of maintenance work is transitioned into tangible demand from slogan, flexible pavement in use, due to the maximization of vehicle, serious overloadization, and climatic influences, road load is caused to be worse off, As time goes on there is a lot of Lie Seams, hole, hole, wave, depression, the multiple diseases such as rut, road surface early damage phenomenon is very general, in order to avoid the generation of traffic accident, ensure the normal operation of urban road system, the maintenance problem of pavement of road more and more causes extensive concern in the industry, road maintenance equipment is more and more subject to people's attention.In the maintenance processes of flexible pavement, during process to hole groove, You Bao, hidden trace, be full of cracks, the multiple diseases such as loose, need to carry out fragmentation, cleaning, heat, mix and stir, cloth, the several work such as compacting, the maintenance of surface functions of the equipments in the past used are simpler and cruder and single, majority is by workman or simple mechanical direct operation maintenance road surface, functionally cannot meet the needs of maintenance of surface operation, also easily there is potential safety hazard in constructing operation personnel, vehicle.The highway mileage of current asphalt pavement conserving is long, the traffic volume is large, asphalt pavement conserving quality requirement is high, therefore need matching used maintenance of surface operation application apparatus requirement speed, maintenance quality better, to replace, traditional-handwork operation is required great effort, time-consuming, poor efficiency, unsafe pattern.
Utility model content
For addressing the aforementioned drawbacks, the purpose of this utility model is to provide a kind of comprehensive maintaining vehicle for bituminous pavement, change the operation function of traditional asphalt pavement maintanance truck completely, move flexibly and fast, simple to operate, reduce maintenance cost, quickly and efficiently await your reply damaged road surface, achieve the effect of the multinomial integrated function construction of a machine, have good Social benefit and economic benefit.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of comprehensive maintaining vehicle for bituminous pavement, comprise body of caring the car, described body of caring the car comprises automobile cab, the automobile chassis be connected with described automobile cab, described automobile chassis front end is provided with crane, and described automobile chassis surface is also provided with subframe, described subframe is provided with road roller successively from A-P, tipping lorry, cutting machine, asphalt spraying device and upset body of heater device, described upset body of heater device side is also provided with asphalt reclamation material heater, described asphalt spraying device comprises asphalt tank, feed cap is respectively equipped with above described asphalt tank, asphalt-spraying pipeline and bitumenpump, described asphalt tank is connected with described bitumenpump, described bitumenpump is connected with described asphalt-spraying pipeline, described asphalt-spraying pipeline comprises asphalt distribution rifle, and described asphalt-spraying pipeline is provided with hand handle near described asphalt distribution rifle place, described asphalt distribution rifle end is provided with nozzle, described nozzle end is arc surface, and described nozzle end is provided with trough type spout, described spout is connected with tapered channel near described nozzle interior, described asphalt tank side is also respectively equipped with electric heater and temperature control meter,
Described upset body of heater device comprises frame, roll over stand and upset body of heater, and described frame both sides are equipped with switching mechanism, and described switching mechanism comprises the cylinder be provided with bottom described frame, and described cylinder is connected with dwang, pull bar in turn; Idler wheel mechanism is provided with bottom described roll over stand, described upset inboard wall of furnace body is provided with moving tooth, outer wall is provided with rolling ring, described rolling ring contacts with described idler wheel mechanism, described upset body of heater is rotated on described idler wheel mechanism by described rolling ring, before and after described roll over stand, both sides are also equipped with link, and described link is connected with flip-arm, and described flip-arm is connected with described pull bar; When described cylinder stretches out or retracts, described dwang by described pull bar, described flip-arm drive described roll over stand turns over or under turn over, now described upset body of heater updip or have a down dip;
Described asphalt reclamation material heater comprises fuel gas bottle, the gas storage bag be connected with described fuel gas bottle and the some hand-held flame gun be connected with described gas storage bag, delivery port is provided with bottom described gas storage bag, the hand position of described hand-held flame gun is provided with isolation layer and control valve, and the flame cylinder that described hand-held flame gun comprises burner and is connected with described burner, described burner is dome shape, center is flame passage, the horn mouth that described flame passage comprises circular port and is connected with described circular port, described horn mouth is near described flame cylinder, described burner is equipped with some air vents in the axis of described flame passage and radial direction.
Preferably, described upset body of heater one end is provided with discharging opening, and the other end is also connected with rotating shaft.
Described roll over stand side is also provided with boss, and described boss is provided with clutch shaft bearing, and described rotating shaft is also provided with actuating unit bottom described roll over stand together with being installed in described clutch shaft bearing, and described actuating unit is by axis of rotation described in sprocket wheel, chain-driving.
Described hand being provided with two, and in L-type, when described asphalt-spraying pipeline is arranged, described hand end towards difference.
The second bearing that rotary part and the described frame side of described dwang are provided with is connected.
Described comprehensive maintaining vehicle for bituminous pavement is also provided with electric control gear, the controller that described electric control gear comprises generator and is connected with described generator, and described controller is connected with described electric heater, described temperature control meter respectively.
Described controller is also connected with described cylinder, described actuating unit respectively, described upset body of heater updip or when having a down dip, described actuating unit drives described upset body of heater turn clockwise or be rotated counterclockwise respectively.
The utility model is when carrying out pavement patching maintenance, first by road roller, tipping lorry, cutting machine, asphalt spraying device and upset body of heater device reasonable arrangement good position, cutting machine road pavement is first used to cut, the asphalt reclamation material obtained is after the process of described asphalt reclamation material heater, be conveyed into upset body of heater device inner, virgin material is also conveyed in upset body of heater simultaneously, now described asphalt spraying device sprays pitch in upset body of heater, after mixing, upset body of heater pours out compound, repairs road surface; For the less longer road surface of crackle, available asphalt nozzle directly sprays.
The beneficial effects of the utility model are: the utility model, at described asphalt tank side installing electric heater, prevents from, in the reduction of asphalt distribution process medium pitch temperature, making the temperature that pitch keeps certain, the final effect ensureing repairing road surface; The nozzle end of described asphalt distribution rifle adopts trough type spout, when spraying pitch, is convenient to the cementation of fissures, and convenient operation personnel repair the road surface in longer crack, improve operating efficiency, reduce the input cost of maintenance unit; Described spout is connected with tapered channel, be in order to pitch from spout out time produce larger pressure, meet the requirement of spraying pitch, improve operating efficiency; The screw thread that described nozzle matrix outer wall is provided with, is convenient to described nozzle and is connected with external spraying pipeline, installs replacing and brings convenience; Two hands be provided with are can handled easily personnel hand-held asphalt distribution rifle from different directions, or both hands hold asphalt distribution rifle, reduce the labour intensity of operating personnel;
Described upset body of heater device is by upset body of heater updip or have a down dip, then turn clockwise or be rotated counterclockwise, carry out respectively stirring and discharging two operations, compared with traditional approach, this mode stirring efficiency is higher, and the effectiveness comparison stirred is given prominence to, rotate while discharge during discharge, discharge while be directly used in repairing road surface simultaneously, the compound after discharging is avoided to need again the situation of mix and blend because of inapplicable maintenance of surface, improve operating efficiency, reduce the input cost of maintenance unit; The rotating shaft that upset furnace interior in the utility model is provided with is that the moving tooth that inwall is provided with is in order to better stirring, not be used in rotating shaft and arranges stirrer gear, reduce cost, brings good economic benefit in order to connect outside actuating unit.
The utility model novelty gas storage bag is set, a cushioning effect can be played, ensure that the stable of air pressure, prevent the flame instability brought fluctuated of air pressure, gas storage bag can precipitate moisture wherein in addition, all brings advantage to heating effect and the abundant of burning; The delivery port be provided with bottom described gas storage bag is for the ease of being emitted on the moisture precipitated in gas storage bag; The isolation layer that described hand position is provided with is protection operating personnel, avoids the heat be passed during flame to scald; The control valve that described hand position is provided with can regulate flame strong and weak, convenient operation personnel reasonable adjusting according to actual needs; Described burner is equipped with some air vents in the axis of described flame passage and radial direction, utility model people draw through research and analysis, effective before combustion combustion gas and air fully can be mixed, make it reach sufficient burning, reduce the input cost of enterprise; Described flame passage comprises circular port and horn mouth, and described horn mouth effectively can expand area coverage during flame, improves the efficiency of combustion to asphalt reclamation material.
The utility model adopts truck chassis, according to the flexibility of automobile, road surface can be repaired on a highway, convenient mobile, automobile cab in the utility model effectively can improve the condition of work of surfaceman, the lifting function be provided with brings convenience for lifting each equipment, the road roller be provided with, spreading can be carried out to the road surface trimmed, help repair road fast, the cutting machine be provided with can cut the road surface that will repair, the tipping lorry be provided with, and the construction site being usually used in road repair uses.
Compared with prior art, the utility model is provided with various asphalt pavement conserving equipment on described subframe, make the utility model complete function, versatility is strong, moves flexibly and fast, simple to operate, reduce maintenance cost, quickly and efficiently await your reply damaged road surface, a car can realize the reliable repairing of the multiple road such as groove, crack, road pavement hole disease, be a comprehensive strong comprehensive maintaining vehicle for bituminous pavement, have good Social benefit and economic benefit; Waste material heating simultaneously uses, and utilizes materials recycling equipment, greatly reduces cost of repairing the roads.
Accompanying drawing explanation
Below with reference to the accompanying drawings and embodiment, structure of the present utility model and feature are further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of asphalt spraying device described in the utility model.
Fig. 3 is the structural representation of asphalt-spraying pipeline described in Fig. 2.
Fig. 4 is the structural representation of nozzle described in the utility model.
Fig. 5 is the plan structure schematic diagram of Fig. 4.
Fig. 6 is the cross-sectional view of Fig. 4.
Fig. 7 is the structural representation overturning body of heater device described in the utility model.
Fig. 8 is the structural representation of switching mechanism described in the utility model.
Fig. 9 is the structural representation of the heater of asphalt reclamation material described in the utility model.
Figure 10 is the cross-sectional view of burner described in Fig. 9.
Figure 11 is the left TV structure schematic diagram of Figure 10.
In Fig. 1,1. automobile cab, 2. crane, 3. overturn body of heater device, 4. road roller, 5. cutting machine, 6. tipping lorry, 7. asphalt spraying device, 8. automobile chassis, 9. subframe.
In Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6,10. feed cap, 11. asphalt tanks, 12. asphalt-spraying pipelines, 13. bitumenpumps, 14. temperature control meter, 15. electric heaters, 16. hand handles, 17. nozzles, 18. asphalt distribution rifles, 19. spouts, 20. shower nozzles, 21. nozzle matrix, 22. tapered channels, 23. screw threads.
In Fig. 7 and Fig. 8,24. discharging openings, 25. moving teeth, 26. rolling rings, 27. flip-arms, 28. upset bodies of heater, 29. idler wheel mechanisms, 30. sprocket wheels, 31. actuating units, 32. rotating shafts, 33. clutch shaft bearings, 34. pull bars, 35. frames, 36. dwangs, 37. second bearings, 38. cylinders, 39. links, 52. roll over stands.
In Fig. 9, Figure 10 and Figure 11,40. transfer pipelines, 41. gas storage bags, 43. flame cylinders, 44. burners, 45. delivery ports, 46. hand-held flame guns, 47. circular ports, 48. axial air vents, 49. radial air vents, 50. horn mouths, 51. flame passages.
Detailed description of the invention
Referring to Fig. 1 ~ Figure 11, a kind of comprehensive maintaining vehicle for bituminous pavement, comprise body of caring the car, described body of caring the car comprises automobile cab 1, the automobile chassis 8 be connected with described automobile cab 1, described automobile chassis 8 front end is provided with crane 2, and described automobile chassis 8 surface is also provided with subframe 9, described subframe 9 is provided with road roller 4 successively from A-P, tipping lorry 6, cutting machine 5, asphalt spraying device 7 and upset body of heater device 3, described upset body of heater device 3 side is also provided with asphalt reclamation material heater, described asphalt spraying device 7 comprises asphalt tank 11, feed cap 10 is respectively equipped with above described asphalt tank 11, asphalt-spraying pipeline 12 and bitumenpump 13, described asphalt tank 11 is connected with described bitumenpump 13, described bitumenpump 13 is connected with described asphalt-spraying pipeline 12, described asphalt-spraying pipeline 12 comprises asphalt distribution rifle 18, and described asphalt-spraying pipeline 12 is provided with hand 16 near described asphalt distribution rifle 18 place, described asphalt distribution rifle 18 end is provided with nozzle 17, described nozzle 17 end is arc surface, and described nozzle 17 end is provided with trough type spout 19, described spout 19 is internally connected with tapered channel 22 near described nozzle 17, described asphalt tank 11 side is also respectively equipped with electric heater 15 and temperature control meter 14,
Described upset body of heater device 3 comprises frame 35, roll over stand 52 and upset body of heater 28, described frame 35 both sides are equipped with switching mechanism, described switching mechanism comprises the cylinder 38 be provided with bottom described frame 35, and described cylinder 38 is connected with dwang 36, pull bar 34 in turn; Idler wheel mechanism 29 is provided with bottom described roll over stand 52, described upset body of heater 28 inwall is provided with moving tooth 25, outer wall is provided with rolling ring 26, described rolling ring 26 contacts with described idler wheel mechanism 29, described upset body of heater 28 is rotated on described idler wheel mechanism 29 by described rolling ring 26, before and after described roll over stand 52, both sides are also equipped with link 39, and described link 39 is connected with flip-arm 27, and described flip-arm 27 is connected with described pull bar 34; When described cylinder 38 stretches out or retracts, described dwang 36 by described pull bar 34, described flip-arm 27 drive described roll over stand 52 turns over or under turn over, now described upset body of heater 28 updip or have a down dip;
Described asphalt reclamation material heater comprises fuel gas bottle, the gas storage bag 41 be connected with described fuel gas bottle and the some hand-held flame gun 46 be connected with described gas storage bag 41, delivery port 45 is provided with bottom described gas storage bag 41, the hand position 42 of described hand-held flame gun 46 is provided with isolation layer and control valve, and the flame cylinder 43 that described hand-held flame gun 46 comprises burner 44 and is connected with described burner 44, described burner 44 is in dome shape, center is flame passage 51, the horn mouth 50 that described flame passage 51 comprises circular port 47 and is connected with described circular port 47, described horn mouth 50 is near described flame cylinder 43, described burner 44 is equipped with some air vents in the axis of described flame passage 51 and radial direction.
Preferably, described upset body of heater 28 one end is provided with discharging opening 24, and the other end is also connected with rotating shaft 32.
Described roll over stand 52 side is also provided with boss, described boss is provided with clutch shaft bearing 33, described rotating shaft 32 is also provided with actuating unit 31 bottom described roll over stand 52 together with being installed in described clutch shaft bearing 33, and described actuating unit 31 is rotated by rotating shaft 32 described in sprocket wheel 30, chain-driving.
Described hand is provided with two 16, and in L-type, when described asphalt-spraying pipeline 12 is arranged, described hand 16 ends towards difference.
The second bearing 37 that rotary part and described frame 35 side of described dwang 36 are provided with is connected.
Described comprehensive maintaining vehicle for bituminous pavement is also provided with electric control gear, the controller that described electric control gear comprises generator and is connected with described generator, and described controller is connected with described electric heater 15, described temperature control meter 14 respectively.
Described controller is also connected with described cylinder 38, described actuating unit 31 respectively, described upset body of heater 28 updip or when having a down dip, described actuating unit 31 drives described upset body of heater 28 turn clockwise or be rotated counterclockwise respectively.
The utility model is when carrying out pavement patching maintenance, first by road roller, tipping lorry, cutting machine, asphalt spraying device and upset body of heater device reasonable arrangement good position, cutting machine road pavement is first used to cut, the asphalt reclamation material obtained is after the process of described asphalt reclamation material heater, be conveyed into upset body of heater device inner, virgin material is also conveyed in upset body of heater simultaneously, now described asphalt spraying device sprays pitch in upset body of heater, after mixing, upset body of heater pours out compound, repairs road surface; For the less longer road surface of crackle, available asphalt nozzle directly sprays.
The utility model is provided with various asphalt pavement conserving equipment on described subframe, make the utility model complete function, versatility is strong, move flexibly and fast, simple to operate, reduce maintenance cost, await your reply damaged road surface quickly and efficiently, one car can realize the reliable repairing of the multiple road such as groove, crack, road pavement hole disease, is a comprehensive strong comprehensive maintaining vehicle for bituminous pavement, has good Social benefit and economic benefit; Waste material heating simultaneously uses, and utilizes materials recycling equipment, greatly reduces cost of repairing the roads.
Described above is only preferred embodiment of the present utility model; above-mentioned specific embodiment is not to restriction of the present utility model; all those of ordinary skill in the art, according to describing retouching, the amendment made above or equivalent replacing, all belong to protection domain of the present utility model.
Claims (6)
1. a comprehensive maintaining vehicle for bituminous pavement, comprise body of caring the car, described body of caring the car comprises automobile cab, the automobile chassis be connected with described automobile cab, it is characterized in that: described automobile chassis front end is provided with crane, and described automobile chassis surface is also provided with subframe, described subframe is provided with road roller successively from A-P, tipping lorry, cutting machine, asphalt spraying device and upset body of heater device, described upset body of heater device side is also provided with asphalt reclamation material heater, described asphalt spraying device comprises asphalt tank, feed cap is respectively equipped with above described asphalt tank, asphalt-spraying pipeline and bitumenpump, described asphalt tank is connected with described bitumenpump, described bitumenpump is connected with described asphalt-spraying pipeline, described asphalt-spraying pipeline comprises asphalt distribution rifle, and described asphalt-spraying pipeline is provided with hand handle near described asphalt distribution rifle place, described asphalt distribution rifle end is provided with nozzle, described nozzle end is arc surface, and described nozzle end is provided with trough type spout, described spout is connected with tapered channel near described nozzle interior, described asphalt tank side is also respectively equipped with electric heater and temperature control meter,
Described upset body of heater device comprises frame, roll over stand and upset body of heater, and described frame both sides are equipped with switching mechanism, and described switching mechanism comprises the cylinder be provided with bottom described frame, and described cylinder is connected with dwang, pull bar in turn, idler wheel mechanism is provided with bottom described roll over stand, described upset inboard wall of furnace body is provided with moving tooth, outer wall is provided with rolling ring, described rolling ring contacts with described idler wheel mechanism, described upset body of heater is rotated on described idler wheel mechanism by described rolling ring, before and after described roll over stand, both sides are also equipped with link, and described link is connected with flip-arm, and described flip-arm is connected with described pull bar, when described cylinder stretches out or retracts, described dwang by described pull bar, described flip-arm drive described roll over stand turns over or under turn over, now described upset body of heater updip or have a down dip, described asphalt reclamation material heater comprises fuel gas bottle, the gas storage bag be connected with described fuel gas bottle and the some hand-held flame gun be connected with described gas storage bag, delivery port is provided with bottom described gas storage bag, the hand position of described hand-held flame gun is provided with isolation layer and control valve, and the flame cylinder that described hand-held flame gun comprises burner and is connected with described burner, described burner is dome shape, center is flame passage, the horn mouth that described flame passage comprises circular port and is connected with described circular port, described horn mouth is near described flame cylinder, described burner is equipped with some air vents in the axis of described flame passage and radial direction.
2. comprehensive maintaining vehicle for bituminous pavement according to claim 1, is characterized in that: described upset body of heater one end is provided with discharging opening, and the other end is also connected with rotating shaft.
3. comprehensive maintaining vehicle for bituminous pavement according to claim 2, it is characterized in that: described roll over stand side is also provided with boss, described boss is provided with clutch shaft bearing, together with described rotating shaft is installed in described clutch shaft bearing, also be provided with actuating unit bottom described roll over stand, described actuating unit is by axis of rotation described in sprocket wheel, chain-driving.
4. comprehensive maintaining vehicle for bituminous pavement according to claim 1, is characterized in that: described hand being provided with two, and in L-type, when described asphalt-spraying pipeline is arranged, described hand end towards difference.
5. comprehensive maintaining vehicle for bituminous pavement according to claim 1, is characterized in that: the second bearing that rotary part and the described frame side of described dwang are provided with is connected.
6. comprehensive maintaining vehicle for bituminous pavement according to claim 1, it is characterized in that: described comprehensive maintaining vehicle for bituminous pavement is also provided with electric control gear, the controller that described electric control gear comprises generator and is connected with described generator, described controller is connected with described electric heater, described temperature control meter respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724562.0U CN205188777U (en) | 2015-09-18 | 2015-09-18 | Bituminous pavement comprehensive maintenance truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520724562.0U CN205188777U (en) | 2015-09-18 | 2015-09-18 | Bituminous pavement comprehensive maintenance truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205188777U true CN205188777U (en) | 2016-04-27 |
Family
ID=55781780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520724562.0U Withdrawn - After Issue CN205188777U (en) | 2015-09-18 | 2015-09-18 | Bituminous pavement comprehensive maintenance truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205188777U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220603A (en) * | 2015-09-18 | 2016-01-06 | 南阳市龙达工程机械有限公司 | A kind of comprehensive maintaining vehicle for bituminous pavement |
| CN108316102A (en) * | 2018-01-24 | 2018-07-24 | 吴晓丽 | A kind of multifunction road roller |
| CN108625254A (en) * | 2018-06-30 | 2018-10-09 | 合肥米弘智能科技有限公司 | A kind of intelligent bituminous tank of bituminous concrete stirring system |
-
2015
- 2015-09-18 CN CN201520724562.0U patent/CN205188777U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220603A (en) * | 2015-09-18 | 2016-01-06 | 南阳市龙达工程机械有限公司 | A kind of comprehensive maintaining vehicle for bituminous pavement |
| CN108316102A (en) * | 2018-01-24 | 2018-07-24 | 吴晓丽 | A kind of multifunction road roller |
| CN108625254A (en) * | 2018-06-30 | 2018-10-09 | 合肥米弘智能科技有限公司 | A kind of intelligent bituminous tank of bituminous concrete stirring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160427 Effective date of abandoning: 20180413 |
|
| AV01 | Patent right actively abandoned |