CN211113100U - Quick prosthetic devices of bituminous paving - Google Patents
Quick prosthetic devices of bituminous paving Download PDFInfo
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- CN211113100U CN211113100U CN201920958593.0U CN201920958593U CN211113100U CN 211113100 U CN211113100 U CN 211113100U CN 201920958593 U CN201920958593 U CN 201920958593U CN 211113100 U CN211113100 U CN 211113100U
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Abstract
The utility model discloses a quick prosthetic devices of bituminous paving, it includes: a base; a heating device comprising a microwave heater; the side wall of the stirring tank is provided with a plurality of spiral blades in an inward protruding manner, the bottom of the stirring tank is connected with the base through a turntable bearing, the bottom of the stirring tank is provided with a discharge valve, and the discharge valve and the circular through hole are arranged coaxially; and the compaction device comprises a compression roller with a smooth outer wall, a cavity is arranged inside the compression roller, and a water injection valve communicated with the cavity is arranged on the side wall of the compression roller. The utility model has the advantages of reasonable design, at first heat the pitch on damaged road surface through heating device, open the blow-off valve of agitator tank afterwards, to road surface laying pitch, utilize compaction device to carry out the compaction to the road surface at last, realize bituminous paving's quick restoration, can not occupy the stranded lane during the construction, the operation cycle is short, and is economical and efficient.
Description
Technical Field
The utility model relates to a road surface repair equipment technical field. More specifically speaking, the utility model relates to a quick prosthetic devices of bituminous paving.
Background
In the long-term use process of the asphalt pavement, due to the temperature and the driving reasons of vehicles, the asphalt pavement is easy to be sunken and damaged, and needs to be repaired urgently. In addition, the conventional special vehicle for road repair is single in function, different devices are needed for heating, paving, compacting and the like of the asphalt pavement, the automation degree is low, the compacting device is generally provided with a solid compression roller, the weight is large, and the purposes of energy conservation and free movement are difficult to realize in the long-distance transportation process.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model also aims at providing a quick prosthetic devices of bituminous paving, it can heat, stone and compaction bituminous paving, has realized the quick restoration to bituminous paving, and degree of automation is high, and can not occupy the stranded lane during construction, and the operation cycle is short, and is economical and efficient simultaneously the quick prosthetic devices of bituminous paving sets up the compression roller that has the cavity, injects water into the cavity during the use, increases compression roller weight, realizes the compaction function, and the construction is accomplished the back and is discharged with water, is convenient for save energy and free movement in the long-distance transport process.
In order to achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an asphalt pavement quick repairing device, comprising:
the walking wheel is symmetrically arranged on two sides of the bottom of the base, a square through hole and a circular through hole are sequentially formed in the upper surface of the base from left to right, a rectangular cover body with an opening at the lower end is connected to the periphery of the square through hole in an upward extending mode, a slidable baffle is arranged at the bottom of the circular through hole, and a fixing plate is arranged on the right side of the circular through hole, protrudes out of the base and extends vertically upwards;
the heating device comprises a microwave heater, wherein vertical slide rails are arranged in four side walls of the cover body, a vertically downward telescopic rod is arranged on the inner side of the top of the cover body, pulleys are arranged on the four side walls of the microwave heater, the pulleys are inserted into the slide rails, the microwave heater is arranged in the cover body, is connected with the free end of the telescopic rod and slides up and down along the slide rails, and the working surface of the microwave heater is vertically downward and is opposite to the square through hole;
the side wall of the stirring tank is provided with a plurality of spiral blades in an inward protruding manner, the bottom of the stirring tank is connected with the base through a turntable bearing, the bottom of the stirring tank is provided with a discharge valve, and the discharge valve and the circular through hole are arranged coaxially;
and the compaction device comprises a compression roller with a smooth outer wall, the two sides of the base are close to the fixed plate, the fixed plate is hinged with a connecting plate through hinge shaft symmetry, a rotating shaft is arranged between the front ends of the connecting plates on the two sides, the compression roller is sleeved on the rotating shaft, a connecting rod is further arranged between the connecting plates on the two sides, a rotating sleeve is sleeved at the middle part of the connecting rod, the fixed plate is close to one side wall of the compression roller, an electric push rod is hinged to the side wall of the fixed plate, the front end of the electric push rod is fixedly connected with the outer wall of the rotating sleeve, a cavity is arranged.
Preferably, the microwave heater comprises a generator housing and an energy output device arranged at the bottom of the housing, a magnetron is arranged in the housing, the magnetron is a sealed vacuum tube and consists of a tube core and an electromagnet, a cylindrical anode is arranged in the tube core, a central cathode is arranged in the anode, electrons are attracted by an electrostatic field and flow from the cathode to the anode, the electromagnet forms a constant strong magnetic field in the vertical direction in the space between the anode and the cathode, and the electrons in the tube interact with a high-frequency electromagnetic field under the control of the constant magnetic field and the constant electric field which are perpendicular to each other to convert the energy obtained from the constant electric field into microwave energy so as to generate the microwave energy.
Preferably, the surface of the inner side wall of the cover body is coated with a silicone rubber coating for microwave sealing.
Preferably, the telescopic link is a screw electric telescopic link, and comprises a ball screw, a sliding block and a base, wherein the ball screw is installed on the base, a ball nut is sleeved on the ball screw, the periphery of the ball nut is connected with the sliding block, the ball screw rotates relative to the sliding block, axial displacement occurs between the ball screw and the sliding block, the sliding block is connected with a connecting rod, and the free end of the connecting rod is connected with the microwave heater.
Preferably, a plurality of helical blades are arranged in the stirring tank at equal intervals in parallel, the helical blades extend upwards along the side wall, the included angle between the helical blades and the inner side wall of the stirring tank is 60-90 degrees, and the helical blades protrude out of the inner side wall of the stirring tank by 10-20 cm.
Preferably, the turntable bearing comprises an inner ring, an outer ring and a plurality of rolling bodies, the outer ring is sleeved outside the inner ring, the inner side surface of the outer ring and the outer side surface of the inner ring are provided with arc raceways for the rolling bodies to slide, and the rolling bodies are arranged in the arc raceways.
Preferably, the electric push rod comprises a screw rod, a nut, a guide sleeve, a push rod and a sliding seat, the screw rod is installed on the sliding seat, the nut is sleeved on the screw rod, the guide sleeve is sleeved outside the nut and connected with the push rod, the screw rod rotates relative to the guide sleeve, axial displacement occurs between the screw rod and the guide sleeve, and the free end of the push rod is connected with the rotating sleeve.
Preferably, the cavity and the press roll are both cylindrical structures, and the wall thickness of the press roll is 5-10 cm.
Preferably, the water injection valve is disposed on a circular sidewall surface of the pressure roller near an edge.
The utility model discloses at least, include following beneficial effect:
firstly, in the construction process of the utility model, the working surface of the microwave heater arranged on the base is just opposite to the road surface, the microwave heater generates microwave energy to heat asphalt on the damaged road surface, and the microwave heater is connected with the telescopic rod, and the telescopic rod can be adjusted according to the road surface during construction to drive the microwave heater to move up and down, thereby leading the heating process to be rapid and efficient;
secondly, the utility model is provided with a stirring tank, the inner wall of the stirring tank is provided with a plurality of helical blades, the stirring tank is driven by a bottom turntable bearing to rotate, asphalt is filled in the stirring tank, the asphalt is stirred by the helical blades, a discharge valve of the stirring tank is opened, the asphalt is laid on a road surface, and the stirring tank is arranged on a base, so that the utility model realizes quick repair along with the road surface, has high automation degree, does not need to occupy a plurality of lanes during construction simultaneously, and avoids influencing traffic;
third, compaction device sets up the compression roller that has the cavity, and the compression roller moves down during use and contacts with the road surface, to injecting water in the cavity, increases compression roller weight, carries out the compaction to the bituminous paving of spreading again material, and the construction is accomplished the back and is discharged with water, and the compression roller moves up, is convenient for bituminous paving quick prosthetic devices freely removes labour saving and time saving, economic high efficiency in the long-distance transport process.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a technical solution of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1, the utility model provides a quick prosthetic devices of bituminous paving, include:
the walking wheel type walking device comprises a base 100, wherein walking wheels 101 are symmetrically arranged on two sides of the bottom of the base 100, a square through hole and a circular through hole are sequentially formed in the upper surface of the base 100 from left to right, a rectangular cover body 102 with an opening at the lower end is connected to the periphery of the square through hole in an upward extending mode, a slidable baffle is arranged at the bottom of the circular through hole, and a fixing plate 103 is arranged on the right side of the circular through hole, protrudes out of the;
the heating device comprises a microwave heater 200, wherein vertical slide rails are arranged in four side walls of the cover body 102, a telescopic rod 201 which is vertically downward is arranged on the inner side of the top of the cover body 102, pulleys are arranged on four side walls of the microwave heater 200, the pulleys are inserted into the slide rails, the microwave heater 200 is arranged in the cover body 102, is connected with the free end of the telescopic rod 201 and slides up and down along the slide rails, and the working surface of the microwave heater 200 is vertically downward opposite to the square through hole;
the stirring tank 300 is characterized in that a plurality of spiral blades 301 are arranged on the side wall of the stirring tank 300 in an inward protruding mode, the bottom of the stirring tank 300 is connected with the base 100 through a turntable bearing 302, a discharge valve is arranged at the bottom of the stirring tank 300, and the discharge valve and a circular through hole are arranged coaxially;
and the compaction device comprises a compression roller 400 with a smooth outer wall, wherein two sides of the base 100 are close to the fixed plate 103, the fixed plate 103 is symmetrically hinged with connecting plates 402 through hinge shafts 401, a rotating shaft 403 is arranged between the front ends of the connecting plates 402 at two sides, the compression roller 400 is sleeved on the rotating shaft 403, a connecting rod 404 is further arranged between the connecting plates 402 at two sides, a rotating sleeve 405 is sleeved in the middle of the connecting rod 404, the fixed plate 103 is close to one side wall of the compression roller 400, an electric push rod 406 is hinged to the side wall of one side of the compression roller 400, the front end of the electric push rod 406 is fixedly connected with the outer wall of the rotating sleeve 405, a cavity is arranged inside the. The utility model relates to a quick repairing device for asphalt pavement, which is characterized in that a microwave heater 200 is arranged at the front end of the device, a cover body 102 is arranged outside the microwave heater 200, a telescopic rod 201 is arranged at the inner side of the top of the cover body 102, a slide rail for the microwave heater 200 to slide up and down is arranged in the side wall of the cover body 102, and the working surface of the microwave heater 200 is just opposite to a damaged pavement; the base 100 is further provided with a stirring tank 300, the inner wall of the stirring tank 300 is provided with a plurality of convex spiral blades 301, the bottom of the stirring tank 300 is connected with a turntable bearing 302, the turntable bearing 302 drives the tank body to rotate, materials in the tank body are stirred through the spiral blades 301, the bottom of the stirring tank 300 is provided with a discharge valve, and the discharge valve is opened to spread the materials to a damaged road surface; the tail end of the asphalt pavement quick repairing device is provided with a compression roller 400, the compression roller 400 is connected with the base 100 through connecting plates 402 on two sides, a connecting rod 404 is arranged in the middle of the connecting plate 402, a rotating sleeve 405 is sleeved on the connecting rod 404, the rotating sleeve 405 is connected with an electric push rod 406, the compression roller 400 can ascend and descend through the stretching of the electric push rod 406, the compression roller 400 is of a hollow structure, the side wall of the compression roller 400 is provided with a water injection valve 407, and water can be filled into the hollow cavity of the compression roller 400 through the water injection valve 407. When the damaged asphalt pavement is quickly repaired, the telescopic rod 201 is adjusted according to the height of the pavement to drive the microwave heater 200 to move up and down, so that the action surface of the heating device is opposite to the damaged pavement to quickly and efficiently heat the damaged pavement; then filling heated asphalt materials into the stirring tank 300, driving the stirring tank 300 to rotate by using the turntable bearing 302 to stir the asphalt materials in the stirring tank 300, and after the damaged pavement is cleaned, opening a discharge valve at the bottom of the stirring tank 300 and paving asphalt on the pavement; adjusting the electric push rod 406 to enable the press roller 400 to descend and contact the road surface, opening a water injection valve 407 on the side wall of the press roller 400 to inject water into the cavity of the press roller 400, closing the water injection valve 407 and moving the base 100, compacting the newly paved asphalt road surface, opening the water injection valve 407 after the compaction process is finished, discharging the water in the cavity, and adjusting the electric push rod 406 to enable the press roller 400 to ascend, thereby completing the construction process. The utility model relates to a quick prosthetic devices of bituminous paving, structural design is reasonable, at first heats the pitch on damaged road surface through heating device, opens the blow-off valve of agitator tank 300 afterwards, discharges the pitch material in the agitator tank 300, lays the pitch to the road surface, utilizes compaction device to carry out the compaction to the road surface at last, heats, paves material and compaction process to damaged bituminous paving in proper order, and degree of automation is high, has realized the quick restoration to bituminous pavement, and need not to occupy the stranded lane during the construction, the influence to the traffic of furthest reduction; the microwave heater 200 can move up and down along with the telescopic rod 201, so that the heating device can rapidly and efficiently heat the damaged pavement; a plurality of helical blades 301 are arranged in the stirring tank 300, and the materials in the tank body can be fully stirred by the rotation of the tank body; the compaction device is provided with the compression roller 400 with the cavity, water is injected into the cavity during use, the weight of the compression roller 400 is increased, water in the cavity is discharged after the compaction process is completed, the weight of the compression roller 400 is reduced, the asphalt pavement quick repairing device can move freely, the compression roller 400 can lift through the electric push rod 406, and the device is time-saving, labor-saving, economical and efficient in the long-distance transportation process.
In another technical solution, as shown in fig. 1, the microwave heater 200 includes a generator housing and an energy output device disposed at the bottom of the housing, a magnetron is mounted in the housing, the magnetron is a sealed vacuum tube and is composed of a tube core and an electromagnet, a cylindrical anode is disposed in the tube core, a central cathode is disposed in the anode, electrons are attracted by an electrostatic field and flow from the cathode to the anode, the electromagnet forms a constant strong magnetic field in the vertical direction in the space between the anode and the cathode, and the electrons in the tube interact with a high-frequency electromagnetic field under the control of the constant magnetic field and the constant electric field which are perpendicular to each other, so as to convert the energy obtained from the constant electric field into microwave energy, thereby generating the microwave energy. The energy output device of the microwave heater 200 is opposite to the damaged pavement and emits microwave energy to the pavement, so that asphalt on the pavement is heated and melted, and the damaged pavement is convenient to clean and repair.
In another solution, as shown in fig. 1, the inner side wall surface of the cover 102 is coated with a silicone rubber coating for microwave sealing. The surface of the inner side wall of the cover body 102 is coated with the silicon rubber coating, so that the microwave energy is prevented from leaking to the periphery, the heating efficiency is increased, and the microwave energy is prevented from leaking to hurt workers in the construction process.
In another technical scheme, as shown in fig. 1, the telescopic rod 201 is a screw electric telescopic rod, and includes a ball screw, a slider and a base, the ball screw is mounted on the base, a ball nut is sleeved on the ball screw, the periphery of the ball nut is connected to the slider, the ball screw rotates relative to the slider, axial displacement occurs between the ball screw and the slider, the slider is connected to a connecting rod, and a free end of the connecting rod is connected to the microwave heater 200. Through the slider slides, drives the connecting rod and reciprocates, makes telescopic function is realized to telescopic link 201, thereby makes microwave heater 200 can reciprocate along with telescopic link 201, and the heating device of being convenient for carries out high efficiency's heating to the damaged road surface.
In another technical scheme, as shown in fig. 1, a plurality of helical blades 301 are arranged in parallel at equal intervals in the stirring tank 300, the helical blades 301 extend upwards along the side wall, the included angle between the helical blades 301 and the inner side wall of the stirring tank 300 is 60-90 degrees, and the helical blades 301 protrude 10-20cm from the inner side wall of the stirring tank 300. 300 inner walls of agitator tank set up a plurality of parallel equidistant helical blade 301, helical blade 301 protrusion 300 inside wall certain distance of agitator tank, helical blade 301 upwards and set up certain contained angle with 300 inside walls of agitator tank, when jar body is rotatory, jar body bottom material is turned over on being driven by helical blade 301, is convenient for to the intensive mixing of jar internal material.
In another technical solution, as shown in fig. 1, the turntable bearing 302 is composed of an inner ring, an outer ring, and a plurality of rolling elements, the outer ring is sleeved outside the inner ring, the inner side surface of the outer ring and the outer side surface of the inner ring are provided with arc raceways for the rolling elements to slide, and the rolling elements are installed in the arc raceways. The bottom of the stirring tank 300 is connected with the inner ring, and the inner ring rotates to drive the stirring tank 300 to rotate, so that the asphalt material in the tank body is stirred.
In another technical scheme, as shown in fig. 1, the electric push rod 406 includes a screw, a nut, a guide sleeve, a push rod, and a slide seat, the screw is mounted on the slide seat, the nut is sleeved on the screw, the guide sleeve is sleeved outside the nut, the guide sleeve is connected to the push rod, the screw rotates relative to the guide sleeve, axial displacement occurs between the screw and the guide sleeve, and the free end of the push rod is connected to the rotating sleeve 405. The guide sleeve is connected with the push rod, the guide sleeve rotates relative to the screw rod, the screw rod and the push rod generate axial displacement, the electric push rod 406 stretches, and therefore the press roller 400 is driven to lift.
In another technical solution, as shown in fig. 1, the cavity and the press roll 400 are both cylindrical structures, and the thickness of the wall of the press roll 400 is 5-10 cm. The compression roller 400 is of a hollow cylindrical structure, the wall thickness of the compression roller 400 is 5-10cm, and the compression roller 400 is too thin, so that the compression roller is easy to damage in the compaction process and interferes with repair work; the wall of the press roll 400 is too thick, so that the volume of the cavity is too small, the weight is increased, and the purposes of saving energy and freely moving are difficult to realize.
In another embodiment, as shown in fig. 1, the water injection valve 407 is disposed on the circular sidewall surface of the compression roller 400 near the edge. The water injection valve 407 is disposed at the edge of the sidewall of the press roller 400, so as to completely discharge water in the cavity of the press roller 400.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. The utility model provides a quick prosthetic devices of bituminous paving which characterized in that includes:
the walking wheel is symmetrically arranged on two sides of the bottom of the base, a square through hole and a circular through hole are sequentially formed in the upper surface of the base from left to right, a rectangular cover body with an opening at the lower end is connected to the periphery of the square through hole in an upward extending mode, a slidable baffle is arranged at the bottom of the circular through hole, and a fixing plate is arranged on the right side of the circular through hole, protrudes out of the base and extends vertically upwards;
the heating device comprises a microwave heater, wherein vertical slide rails are arranged in four side walls of the cover body, a vertically downward telescopic rod is arranged on the inner side of the top of the cover body, pulleys are arranged on the four side walls of the microwave heater, the pulleys are inserted into the slide rails, the microwave heater is arranged in the cover body, is connected with the free end of the telescopic rod and slides up and down along the slide rails, and the working surface of the microwave heater is vertically downward and is opposite to the square through hole;
the side wall of the stirring tank is provided with a plurality of spiral blades in an inward protruding manner, the bottom of the stirring tank is connected with the base through a turntable bearing, the bottom of the stirring tank is provided with a discharge valve, and the discharge valve and the circular through hole are arranged coaxially;
and the compaction device comprises a compression roller with a smooth outer wall, the two sides of the base are close to the fixed plate, the fixed plate is hinged with a connecting plate through hinge shaft symmetry, a rotating shaft is arranged between the front ends of the connecting plates on the two sides, the compression roller is sleeved on the rotating shaft, a connecting rod is further arranged between the connecting plates on the two sides, a rotating sleeve is sleeved at the middle part of the connecting rod, the fixed plate is close to one side wall of the compression roller, an electric push rod is hinged to the side wall of the fixed plate, the front end of the electric push rod is fixedly connected with the outer wall of the rotating sleeve, a cavity is arranged.
2. The device for rapidly repairing asphalt pavement according to claim 1, wherein the microwave heater comprises a generator housing and an energy output device arranged at the bottom of the housing, a magnetron is arranged in the housing, the magnetron is a sealed vacuum tube and is composed of a tube core and an electromagnet, a cylindrical anode is arranged in the tube core, a central cathode is arranged in the anode, electrons are attracted by an electrostatic field to flow from the cathode to the anode, and the electromagnet forms a strong magnetic field with a constant vertical direction in a space between the anode and the cathode.
3. The asphalt pavement quick-repairing device according to claim 1, wherein the inner side wall surface of said cover body is coated with a silicone rubber coating for microwave sealing.
4. The device for rapidly repairing an asphalt pavement according to claim 1, wherein the telescopic rod is a screw electric telescopic rod and comprises a ball screw, a slider and a base, the ball screw is mounted on the base, a ball nut is sleeved on the ball screw, the ball nut is peripherally connected with the slider, the ball screw performs a rotating motion relative to the slider, an axial displacement occurs between the ball screw and the slider, the slider is connected with a connecting rod, and a free end of the connecting rod is connected with the microwave heater.
5. The device for rapidly repairing an asphalt pavement according to claim 1, wherein a plurality of helical blades are arranged in the stirring tank at equal intervals in parallel, the helical blades extend upwards along the side wall, the included angle between the helical blades and the inner side wall of the stirring tank is 60-90 degrees, and the helical blades protrude 10-20cm from the inner side wall of the stirring tank.
6. The device for rapidly repairing an asphalt pavement according to claim 1, wherein the turntable bearing comprises an inner ring, an outer ring and a plurality of rolling elements, the outer ring is sleeved outside the inner ring, the inner side surface of the outer ring and the outer side surface of the inner ring are provided with arc raceways for the rolling elements to slide, and the rolling elements are installed in the arc raceways.
7. The device for rapidly repairing an asphalt pavement according to claim 1, wherein the electric push rod comprises a screw rod, a nut, a guide sleeve, a push rod and a slide seat, the screw rod is mounted on the slide seat, the nut is sleeved on the screw rod, the nut is sleeved with the guide sleeve, the guide sleeve is connected with the push rod, the screw rod performs a rotating motion relative to the guide sleeve, axial displacement occurs between the screw rod and the guide sleeve, and the free end of the push rod is connected with the rotating sleeve.
8. The device for rapidly repairing the asphalt pavement according to claim 1, wherein the cavity and the press roller are both cylindrical structures, and the wall thickness of the press roller is 5-10 cm.
9. The asphalt pavement quick-repairing device according to claim 1, wherein said water injection valve is provided on the circular side wall surface of said press roll near the edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920958593.0U CN211113100U (en) | 2019-06-24 | 2019-06-24 | Quick prosthetic devices of bituminous paving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920958593.0U CN211113100U (en) | 2019-06-24 | 2019-06-24 | Quick prosthetic devices of bituminous paving |
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| Publication Number | Publication Date |
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| CN211113100U true CN211113100U (en) | 2020-07-28 |
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| CN201920958593.0U Active CN211113100U (en) | 2019-06-24 | 2019-06-24 | Quick prosthetic devices of bituminous paving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647398A (en) * | 2020-12-22 | 2021-04-13 | 林锦全 | Quick repair equipment of bituminous paving |
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2019
- 2019-06-24 CN CN201920958593.0U patent/CN211113100U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647398A (en) * | 2020-12-22 | 2021-04-13 | 林锦全 | Quick repair equipment of bituminous paving |
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