CN112112045A - Pavement crushing equipment and method for municipal road maintenance - Google Patents
Pavement crushing equipment and method for municipal road maintenance Download PDFInfo
- Publication number
- CN112112045A CN112112045A CN202011004073.XA CN202011004073A CN112112045A CN 112112045 A CN112112045 A CN 112112045A CN 202011004073 A CN202011004073 A CN 202011004073A CN 112112045 A CN112112045 A CN 112112045A
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- rod
- bottom frame
- frame
- road surface
- crushing
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
- E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
- E01C23/124—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus moved rectilinearly, e.g. road-breaker apparatus with reciprocating tools, with drop-hammers
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a pavement crushing device for municipal road maintenance, which comprises a device shell, wherein the device shell comprises a top frame, a left device box and a right device box which are connected below the top frame, and a movable wheel is arranged below the device boxes; a bottom frame capable of moving up and down is arranged between the two equipment boxes, and a circle of cutter is arranged at the edge of the bottom surface of the bottom frame; the top surface of the top frame is provided with a left bearing seat and a right bearing seat, a lead screw and a guide plate are respectively arranged between the two bearing seats one above the other, a moving block is arranged on the lead screw, an L-shaped arm which can move up and down is connected below the moving block, and a row of electric drills which can crush the pavement are arranged on the lower plate of the C-shaped cover; compared with the prior art, the invention has the beneficial effects that: can utilize the underframe to surely go out a broken scope, then utilize the electric drill translation with the broken road surface of broken within range broken, can restrict broken road surface in a less within range as far as possible like this, reduce unnecessary extravagant.
Description
Technical Field
The invention relates to municipal road maintenance equipment, in particular to road surface crushing equipment for municipal road maintenance.
Background
Among the town road especially some cement road surface, easy production is broken and is formed the pot hole in the use, need earlier the pot hole surface, peripheral breakage when maintaining, then pour the cement road surface again, have many road surface crushing equipments among the prior art, specifically as the online publication of chinese patent: the road surface crusher comprises a ZL2014101934028 mobile cement road surface crusher, an 2017215639464 energy-saving and environment-friendly damaged road surface crusher, a 20192057719777 municipal road surface crusher and the like; the principle of natural driving in these pavement crushers is different, but the same technical problems exist, namely, the damage range is not controlled well, too many roads without damage are easy to break, waste is caused, and the repair progress is influenced, so improvement is needed.
Disclosure of Invention
The purpose of the invention is: a pavement breaking apparatus for town road maintenance is provided in which the damaged edge is relatively regular.
The scheme of the invention is as follows: a road surface crushing equipment for town road maintenance, includes equipment shell, its characterized in that: the equipment shell comprises a top frame and a left equipment box and a right equipment box which are connected below the top frame, the inner side of each equipment box is open, and a movable wheel is arranged below each equipment box; a pushing part is arranged outside one of the equipment boxes;
a bottom frame capable of moving up and down is arranged between the two equipment boxes, and a circle of cutter is arranged at the edge of the bottom surface of the bottom frame; the left end and the right end of the upper end surface of the bottom frame are respectively and fixedly connected with a lifting rod, the lifting rod penetrates through the top frame, the top of the lifting rod is an outward turning part positioned above the top frame, and a first lifting driving cylinder capable of pushing the outward turning part is arranged below each outward turning part on the top frame; the lifting rod is sleeved with a sliding hammer, and the sliding hammer is provided with a protruding part protruding towards the equipment box;
an upper rotating wheel and a lower rotating wheel are arranged in the equipment box, and one rotating wheel is in transmission connection with a motor for driving the rotating wheel to rotate; a transmission chain is sleeved on the upper rotating wheel and the lower rotating wheel; two chain clamps capable of lifting the convex part of the sliding hammer at different time are arranged on the transmission chain; the bottom surface of the top frame is provided with a left electromagnet and a right electromagnet which can attract the sliding hammer;
the top surface of the top frame is provided with a left bearing seat and a right bearing seat, a screw rod and a guide plate are respectively arranged between the two bearing seats one above the other, and two ends of the screw rod are arranged in bearings of the bearing seats; the guide plate is provided with a right extending part, a second motor is arranged on the right extending part, and the second motor is in transmission connection with the lead screw; a moving block is arranged on the lead screw, and a screw hole for the lead screw to pass through is formed in the moving block; a transverse guide groove is formed in the guide plate, an L-shaped arm is connected below the moving block, the vertical part of the L-shaped arm penetrates through the transverse guide groove, a vertical guide groove is formed in the vertical part of the L-shaped arm, and a guide rod and a second lifting driving cylinder are arranged on the transverse part of the L-shaped arm; the L-shaped arm is provided with a C-shaped cover capable of moving up and down, and the C-shaped cover comprises an upper plate, a lower plate and a connecting plate between the upper plate and the lower plate; the right end of the upper plate is provided with a reducing section moving in the vertical guide groove, and the right end of the reducing section is provided with a limiting block; the guide rod penetrates through the upper plate and is provided with a first spring; the second lifting driving cylinder is positioned below the upper plate and can jack the upper plate; the lower plate is provided with a row of electric drills capable of crushing the pavement;
the L-shaped arm and the C-shaped cover move inside the top frame, and the drill bit of the electric drill can move inside the bottom frame.
Further, the electric drill is composed of a third motor, a rotating rod and a drill bit, the third motor is arranged on the lower plate, the rotating rod is connected with a motor shaft of the third motor through a coupler, and the drill bit is arranged at the bottom of the rotating rod.
Further, the bottom surface and the periphery of the drill bit are provided with crushing teeth.
Furthermore, the cutter comprises a movable rod, a second spring, a base part, a cutter part and a supporting rod; the base part is connected below the movable rod, and the knife part is connected below the base part; an upper groove and a lower groove are formed in the bottom frame where the cutter is arranged; the movable rod penetrates through the bottom frame, and the top of the movable rod is provided with an end which is sunk into the upper groove; the spring two sets establish on the movable rod and spring two upper portions are located the low groove, the bracing piece is a plurality of, and the bracing piece is established in basal portion top surface, the periphery of movable rod, and the bracing piece top surface contacts with the underframe when the underframe pushes down.
Further, the moving wheels are universal wheels with self-locking function.
The invention relates to a method for crushing a road surface for municipal road maintenance, which adopts the road surface crushing equipment and is characterized in that: the method comprises a step of cutting a crushing range by using a bottom frame and a step of crushing the pavement in the crushing range by using electric drill translation.
Compared with the prior art, the invention has the beneficial effects that: can cut a crushing range by using a bottom frame
The electric drill is used for horizontally moving the road surface within the crushing range to crush the road surface, so that the crushed road surface can be limited within a smaller range as much as possible, and unnecessary waste is reduced. Cutting a crushing range by using a bottom frame
In the enclosing process, the sliding hammer is repeatedly lifted, dropped and beaten on the bottom frame by the motion of the rotating wheel, the motor I and the transmission chain, and a sharp cutter on the bottom frame is utilized to crush a range on the cement pavement; and at the in-process of electric drill translation, one row of electric drill relies on the dead weight to tightly paste the road surface and bores and hit, and motor two, movable block drive L type arm and C shape cover horizontal migration, carry out the all-round effective breakage on the cement road surface in the within range that the underframe was limited, and the practicality is strong.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of the right portion of FIG. 2;
FIG. 4 is an enlarged view of the middle of FIG. 2;
FIG. 5 is an enlarged view at A in FIG. 2;
reference numbers in the figures: the device comprises a shell 1, a top frame 2, a device box 3, a moving wheel 4, a pushing part 5, a bottom frame 6, a cutter 7, a lifting rod 8, an outward turning part 9, a first lifting driving cylinder 10, a sliding hammer 11, a convex inlet part 12, a rotating wheel 13, a first motor 14, a transmission chain 15, a chain clamp 16, an electromagnet 17, a bearing seat 18, a lead screw 19, a guide plate 20, a right extending part 21, a second motor 22, a moving block 23, a transverse guide groove 24, an L-shaped arm 25, a vertical guide groove 26, a guide rod 27, a second lifting driving cylinder 28, a C-shaped cover 29, an upper plate 30, a lower plate 31, a connecting plate 32, a reducing section 33, a limiting block 34, a first spring 35, an electric drill 36, a third motor 37, a rotating rod 38, a drill 39, a coupler 40, a crushing tooth 41, a moving rod 42, a second spring 43, a base part 44, a cutter part 45, a supporting rod 46, an upper groove.
Detailed Description
The invention is further described by way of example with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 and 2, the road surface crushing device for town road maintenance described in the present embodiment includes a device housing 1, and is characterized in that: the equipment shell 1 comprises a top frame 2 and a left equipment box and a right equipment box 3 which are connected below the top frame 2, the inner side of the equipment box 3 is open, and a moving wheel 4 is arranged below the equipment box 3; a pushing part 5 is arranged outside one of the equipment boxes 3;
as shown in fig. 3, a bottom frame 6 capable of moving up and down is arranged between the two equipment boxes 3, and a circle of cutter 7 is arranged at the edge of the bottom surface of the bottom frame 6; the left end and the right end of the upper end surface of the bottom frame 6 are respectively and fixedly connected with a lifting rod 8, the lifting rod 8 penetrates through the top frame 2, the top of the lifting rod 8 is an outward turning part 9 positioned above the top frame 2, and a first lifting driving cylinder 10 capable of pushing the outward turning part 9 is arranged below each outward turning part 9 on the top frame 2; the lifting rod 8 is sleeved with a sliding hammer 11, and the sliding hammer 11 is provided with a protruding part 12 protruding towards the equipment box 3;
an upper rotating wheel 13 and a lower rotating wheel 13 are arranged in the equipment box 3, and one rotating wheel 13 is in transmission connection with a first motor 14 for driving the rotating wheel to rotate; the upper rotating wheel 13 and the lower rotating wheel 13 are sleeved with a transmission chain 15; two chain clamps 16 capable of lifting the convex part 12 of the sliding hammer 11 at different times are arranged on the transmission chain 15; the bottom surface of the top frame 2 is provided with a left electromagnet 17 and a right electromagnet 17 which can attract the sliding hammer 11;
as shown in fig. 4, a left bearing seat 18 and a right bearing seat 18 are arranged on the top surface of the top frame 2, a screw rod 19 and a guide plate 20 are respectively arranged between the two bearing seats 18 one above the other, and two ends of the screw rod 19 are arranged in bearings of the bearing seats 18; the guide plate 20 is provided with a right extension part 21, a second motor 22 is arranged on the right extension part 21, and the second motor 22 is in transmission connection with the lead screw 19; a moving block 23 is arranged on the lead screw 19, and a screw hole for the lead screw 19 to pass through is formed in the moving block 23; a transverse guide groove 24 is formed in the guide plate 20, an L-shaped arm 25 is connected below the moving block 23, a vertical part of the L-shaped arm 25 penetrates through the transverse guide groove 24, a vertical guide groove 26 is formed in the vertical part of the L-shaped arm 25, and a guide rod 27 and a second lifting driving cylinder 28 are arranged in the transverse part of the L-shaped arm 25; a C-shaped cover 29 capable of moving up and down is arranged on the L-shaped arm 25, and the C-shaped cover 29 comprises an upper plate 30, a lower plate 31 and a connecting plate 32 between the upper plate and the lower plate; the right end of the upper plate 30 is provided with a reducing section 33 moving in the vertical guide groove 26, and the right end of the reducing section 33 is provided with a limiting block 34; such a structure can ensure the stability of the up-and-down movement of the C-shaped cover 29; the guide rod 27 penetrates through the upper plate 30, and a first spring 35 is arranged on the guide rod 27; the second lifting driving cylinder 28 is positioned below the upper plate 30 and can lift the upper plate 30; the lower plate 31 is provided with a row of electric drills 36 capable of crushing the road surface; the row mentioned here is a row perpendicular to the paper surface in fig. 1, and may be three or four;
the L-arm 25 and C-cap 29 move within the top frame 2 and the drill bit 39 of the drill 36 moves within the base frame 6.
Specifically, the electric drill 36 is composed of a motor three 37, a rotating rod 38 and a drill bit 39, the motor three 37 is arranged on the lower plate 31, the rotating rod 38 is connected with a motor shaft of the motor three 37 through a coupler 40, and the drill bit 39 is arranged at the bottom of the rotating rod 38.
In particular, the bottom surface and the periphery of the drill bit 39 are provided with crushing teeth 41. Such a configuration of the drill bit 39 facilitates translational crushing.
Specifically, as shown in fig. 5, the cutting knife 7 includes a movable rod 42, a second spring 43, a base 44, a knife portion 45 and a support rod 46; the base part 44 is connected below the movable rod 42, and the knife part 45 is connected below the base part 44; an upper groove 47 and a lower groove 48 are arranged at the position, used for arranging the cutter 7, on the bottom frame 6; the movable rod 42 is arranged in the bottom frame 6 in a penetrating way, the top of the movable rod 42 is provided with an end head 49, and the end head 49 sinks into the upper groove 47; the second spring 43 is sleeved on the movable rod 42, the upper part of the second spring 43 is located in the lower groove 48, the plurality of support rods 46 are provided, the support rods 46 are provided on the top surface of the base 44 and the periphery of the movable rod 42, and the top surface of the support rods 46 is in contact with the bottom frame 6 when the bottom frame 6 is pressed downwards. The cutter with such a structure, when the bottom frame 6 is in a state of freely falling on the ground, the bottom frame 6 is jacked up by the second springs 43 of all the cutters, the bottom frame 6 does not fall down under the impact of the upper sliding hammer 11, the second springs 43 are compressed until the bottom frame 6 is in contact with the support rod 46, the force is transmitted to the base 44 and the cutter part 45, the second springs 43 are protected, excessive compression is prevented, and the whole process is more stable.
In particular, the moving wheel 4 is a universal wheel with a self-locking function. Can be locked when being crushed and can be unlocked when needing to move.
The invention relates to a method for crushing a road surface for municipal road maintenance, which adopts the road surface crushing equipment and is characterized in that: it comprises a step of cutting a crushing range by using the bottom frame 6 and a step of crushing the road surface in the crushing range by using the electric drill 36 to translate. In the process of cutting a crushing range by using the bottom frame 6, repeatedly lifting, falling and knocking the sliding hammer 11 on the bottom frame 6 by using the motion of the rotating wheel 13, the motor I14 and the transmission chain 15, crushing a range on a cement road surface by using the sharp cutter 7 on the bottom frame 6, sucking the sliding hammer 11 by electrifying the electromagnet 17 when the sliding hammer 11 is lifted to the highest position by the chain clamp 16, enabling the chain clamp 16 to be easily separated from the protruding part 12, and then enabling the sliding hammer 11 to freely fall on the bottom frame 6 after the electromagnet 17 is deenergized; the number of the chain clamps 16 is two, the transmission chain 15 rotates one circle to lift the sliding hammer 11 for two times, and the efficiency is high; and in the process of the translation of the electric drills 36, one row of electric drills tightly cling to the road surface by means of dead weight to drill, the second motor 22 and the moving block 23 drive the L-shaped arm 25 and the C-shaped cover 29 to horizontally move, the cement road surface in the range limited by the bottom frame 6 is effectively crushed in all directions, and the practicability is high. After the use is finished, the first lifting driving cylinder 10 and the second lifting driving cylinder 28 can be used for lifting the bottom frame and the electric drill to enable the bottom frame and the electric drill not to contact the road surface, and the pushing part 5 can be pushed or pulled by a vehicle to transport the equipment away.
It should be noted that the pavement breaking for municipal road maintenance designed in the embodiment has the function of frame scratching breaking, but if the first motor 14 is not started, the cutter on the bottom frame 6 does not work, the bottom frame 6 is lifted up, and only the electric drill is used for translation breaking, so that the effect similar to that of the existing device can be achieved, and the device can be selected according to actual conditions.
The invention is particularly suitable for the work of breaking and repairing small water pits on cement pavements.
The scope of protection of this patent is not limited thereto.
Claims (6)
1. A road surface crushing equipment for town road maintenance, includes equipment shell (1), its characterized in that: the equipment shell (1) comprises a top frame (2) and a left equipment box and a right equipment box (3) which are connected below the top frame (2), the inner side of each equipment box (3) is open, and a moving wheel (4) is arranged below each equipment box (3); a pushing part (5) is arranged outside one of the equipment boxes (3);
a bottom frame (6) capable of moving up and down is arranged between the two equipment boxes (3), and a circle of cutter (7) is arranged at the edge of the bottom surface of the bottom frame (6); the left end and the right end of the upper end surface of the bottom frame (6) are respectively and fixedly connected with a lifting rod (8), the lifting rods (8) penetrate through the top frame (2), the top of each lifting rod (8) is an outward turning part (9) located above the top frame (2), and a first lifting driving cylinder (10) capable of pushing up the outward turning part (9) is arranged below each outward turning part (9) on the top frame (2); the lifting rod (8) is sleeved with a sliding hammer (11), and the sliding hammer (11) is provided with a protruding part (12) protruding into the equipment box (3);
an upper rotating wheel (13) and a lower rotating wheel (13) are arranged in the equipment box (3), and one rotating wheel (13) is in transmission connection with a first motor (14) for driving the rotating wheel to rotate; the upper rotating wheel (13) and the lower rotating wheel (13) are sleeved with a transmission chain (15); two chain clamps (16) capable of lifting the protruding parts (12) of the sliding hammers (11) at different time are arranged on the transmission chain (15); the bottom surface of the top frame (2) is provided with a left electromagnet (17) and a right electromagnet (17) which can attract the sliding hammer (11);
the top surface of the top frame (2) is provided with a left bearing seat and a right bearing seat (18), a screw rod (19) and a guide plate (20) are respectively arranged between the two bearing seats (18) one above the other, and two ends of the screw rod (19) are arranged in bearings of the bearing seats (18); the guide plate (20) is provided with a right extension part (21), a second motor (22) is arranged on the right extension part (21), and the second motor (22) is in transmission connection with the screw rod (19); a moving block (23) is arranged on the lead screw (19), and a screw hole for the lead screw (19) to pass through is formed in the moving block (23); a transverse guide groove (24) is formed in the guide plate (20), an L-shaped arm (25) is connected below the moving block (23), the vertical part of the L-shaped arm (25) penetrates through the transverse guide groove (24), a vertical guide groove (26) is formed in the vertical part of the L-shaped arm (25), and a guide rod (27) and a second lifting driving cylinder (28) are arranged on the transverse part of the L-shaped arm (25); a C-shaped cover (29) capable of moving up and down is arranged on the L-shaped arm (25), and the C-shaped cover (29) comprises an upper plate (30), a lower plate (31) and a connecting plate (32) between the upper plate and the lower plate; the right end of the upper plate (30) is provided with a reducing section (33) moving in the vertical guide groove (26), and the right end of the reducing section (33) is provided with a limiting block (34); the guide rod (27) penetrates through the upper plate (30) and a first spring (35) is arranged on the guide rod (27); the second lifting driving cylinder (28) is positioned below the upper plate (30) and can jack up the upper plate (30); the lower plate (31) is provided with a row of electric drills (36) capable of crushing the pavement;
the L-arm (25) and C-shaped cover (29) move inside the top frame (2), and the drill head (39) of the drill (36) can move inside the bottom frame (6).
2. The road surface breaking apparatus for town road maintenance of claim 1, wherein: electric drill (36) comprise motor three (37), bull stick (38) and drill bit (39), motor three (37) set up on hypoplastron (31), bull stick (38) with the motor shaft of motor three (37) passes through shaft coupling (40) and is connected, establish in bull stick (38) bottom drill bit (39).
3. The road surface breaking apparatus for town road maintenance of claim 1, wherein: the bottom surface and the periphery of the drill bit (39) are provided with crushing teeth (41).
4. The road surface breaking apparatus for town road maintenance of claim 1, wherein: the cutter (7) comprises a movable rod (42), a second spring (43), a base part (44), a cutter part (45) and a support rod (46); the base part (44) is connected below the movable rod (42), and the knife part (45) is connected below the base part (44); an upper groove (47) and a lower groove (48) are arranged at the position, used for arranging the cutter (7), on the bottom frame (6); the movable rod (42) is arranged in the bottom frame (6) in a penetrating mode, the top of the movable rod (42) is provided with an end head (49), and the end head (49) sinks into the upper groove (47); the second spring (43) is sleeved on the movable rod (42) and the upper portion of the second spring (43) is located in the lower groove (48), the supporting rods (46) are multiple, the supporting rods (46) are arranged on the top surface of the base portion (44) and the periphery of the movable rod (42), and the top surface of the supporting rods (46) is in contact with the bottom frame (6) when the bottom frame (6) is pressed downwards.
5. The road surface breaking apparatus for town road maintenance of claim 1, wherein: the moving wheel (4) is a universal wheel with a self-locking function.
6. A method of road surface breaking for town road maintenance using the road surface breaking apparatus of any one of claims 1 to 5, characterized in that: the method comprises a step of cutting a crushing range by using the bottom frame (6) and a step of crushing the pavement in the crushing range by using an electric drill (36) to translate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004073.XA CN112112045A (en) | 2020-09-22 | 2020-09-22 | Pavement crushing equipment and method for municipal road maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011004073.XA CN112112045A (en) | 2020-09-22 | 2020-09-22 | Pavement crushing equipment and method for municipal road maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112112045A true CN112112045A (en) | 2020-12-22 |
Family
ID=73800488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011004073.XA Withdrawn CN112112045A (en) | 2020-09-22 | 2020-09-22 | Pavement crushing equipment and method for municipal road maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112112045A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481810A (en) * | 2021-07-14 | 2021-10-08 | 浙江旭瑞建设有限公司 | Road surface crushing equipment for municipal works |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1309166A (en) * | 1969-08-26 | 1973-03-07 | Sjoberg A L | Implement with ground breaking impact tool |
| CN2579941Y (en) * | 2001-08-27 | 2003-10-15 | 程慧 | Double hammer road surface crasher |
| CN107447638A (en) * | 2017-08-30 | 2017-12-08 | 卢杰 | A kind of municipal road surface quick-restoring device |
| CN108611956A (en) * | 2018-05-15 | 2018-10-02 | 长安大学 | A kind of road surface part quick-restoring device |
-
2020
- 2020-09-22 CN CN202011004073.XA patent/CN112112045A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1309166A (en) * | 1969-08-26 | 1973-03-07 | Sjoberg A L | Implement with ground breaking impact tool |
| CN2579941Y (en) * | 2001-08-27 | 2003-10-15 | 程慧 | Double hammer road surface crasher |
| CN107447638A (en) * | 2017-08-30 | 2017-12-08 | 卢杰 | A kind of municipal road surface quick-restoring device |
| CN108611956A (en) * | 2018-05-15 | 2018-10-02 | 长安大学 | A kind of road surface part quick-restoring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481810A (en) * | 2021-07-14 | 2021-10-08 | 浙江旭瑞建设有限公司 | Road surface crushing equipment for municipal works |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20201222 |