CN213538623U - Paver suitable for pavement subbase construction - Google Patents

Abstract

The utility model discloses a paver suitable for pavement sub-base construction, including the paver organism, be equipped with the storage case of vertical setting on the paver organism, storage bottom of the case portion opening part is connected with the discharge box of vertical setting and rather than the switch-on; the front side wall and the rear side wall of the paver body are respectively provided with a moving mechanism, the front side wall of the paver body is provided with a paving mechanism, and the rear side wall of the paver body is provided with a pushing assembly; the left end and the right end of the discharging box are respectively provided with a shielding mechanism, and the shielding mechanism comprises a shielding component for shielding an opening at the bottom of the discharging box and a driving component for driving the shielding component to expand; the shielding assembly comprises guide grooves formed in the front side wall and the rear side wall of the discharge box, a plurality of sliding blocks matched with the guide grooves are arranged in the guide grooves, and a connecting rod unit is arranged between the sliding blocks on the front side wall and the rear side wall of the discharge box. The utility model discloses convenient to use through setting up moving mechanism and shielding mechanism, makes the device can be applicable to the road surface of multiple different width.

Description

Paver suitable for pavement subbase construction

Technical Field

The utility model relates to a road surface construction equipment technical field, concretely relates to paver suitable for construction of road surface subbase layer.

Background

The paver is a construction equipment mainly used for paving various materials on a base layer and a surface layer on a highway, and the paving work is completed by mutually matching various systems such as a traveling system, a driving system, a conveying and distributing system and the like. Along with the diversification of the road grades in China, the scale, standard and speed which are not available in the past of the grade roads, county and county roads and urban roads are promoted forward. Meanwhile, the speed of pavement construction is also improved at a high speed, so that the mechanization of the pavement construction is promoted, and simultaneously, higher and higher requirements are provided for the technical level of construction machinery, the construction process, pavement materials and pavement structure design. The technical level and the construction process of the construction machinery have important influence on the grade and the construction speed of the highway. According to the current construction situation and policy mechanism of China and other factors, the European-type paving construction process with low speed, high compactness and medium and large width is widely adopted, the German ABG structural type paver is more a trend for guiding the industry, but the development of large-scale paving in the 90 th century of the 20 th century is changed into medium-scale paving in the 21 st century, so that various domestic manufacturers readjust the development idea, and at present, the main paver manufacturers have the potential of all flowers and all families to play.

The existing paver is controlled by a motor, a worker is required to drive the paver to control the running track of the paver, the existing paver is usually in a crawler walking type, the existing paver is easy to influence the ground after paving, the walking of the existing paver is driven by the motor, and manual pushing is difficult to operate. In addition, the distance between two tracks of the crawler walking type paver cannot be adjusted, so that the crawler walking type paver cannot be suitable for various small-sized pavements with different widths.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the current paver can't adapt to the problem on the different small-size road surface of multiple width. The utility model provides a paver suitable for construction of road surface subbase, through setting up the gyro wheel of adjustable interval and set up on ejection of compact case and shield the mechanism, make the device can be applicable to the small-size road surface of multiple different width, conveniently pave to the different small-size road surface of multiple width.

The utility model discloses a following technical scheme realizes:

the paver suitable for pavement sub-base construction comprises a paver body, wherein a storage box is vertically arranged on the paver body, the top and the bottom of the storage box are both open, a discharge box which is vertically arranged and communicated with the storage box is connected to the opening at the bottom of the storage box, and the bottom of the discharge box is open and internally provided with a stirring assembly; the front side wall and the rear side wall of the paver body are respectively provided with a moving mechanism, the front side wall of the paver body is provided with a paving mechanism, and the rear side wall of the paver body is provided with a pushing assembly; the left end and the right end of the discharging box are respectively provided with a shielding mechanism, and the shielding mechanism comprises a shielding component for shielding an opening at the bottom of the discharging box and a driving component for driving the shielding component to expand; shelter from the subassembly including setting up the guide way on the lateral wall around the play workbin, two the guide way in all be equipped with a plurality ofly rather than the slider that matches, fix on the lateral wall apart from the nearest slider in a workbin lateral wall top, be located to be equipped with the connecting rod unit between the slider on both sides wall around the play workbin, the connecting rod unit is including connecting on the slider and with the parallel connecting rod I in lateral wall top around the play workbin, many connecting rod I all protrusion in a workbin lateral wall, the length of many connecting rods I all is greater than the minimum distance of the crossing department of play workbin edge apart from the guide way, and is connected with a connecting rod II between the other end of two I relative connection slider ends of connecting rod on same horizontal plane, arbitrary adjacent two the connecting rod unit between all be equipped with.

The paver is a construction equipment mainly used for paving various materials on the base course and the surface course of the highway, and the paving work is completed by mutually matching various systems, and the paver mainly comprises a traveling system, a driving system, a material conveying and distributing system and the like. At present, manufacturers of spreading machines at home and abroad pursue product diversity, namely products with different width series of 4.5-12.5 m are developed in the width series, and products with different types such as high technical level, medium technical level, low technical level, high price, medium technical level, low technical level and the like meet the requirements of construction units and road construction at different levels. Most of the conventional pavers are driven by motors and are crawler-type, and even the smallest paver is not suitable for a road surface with a width of 4.5m or less. However, the road surface of the current rural road is mostly narrow and less than 4.5m, so the current spreading machine is not suitable for the road surface with a small width. In addition, because the width between two tracks of crawler walking paver and the width of discharge gate can't be adjusted, this paver that works as can't be used for the road that the road surface width is less than the width between its two tracks. In order to solve the problem, the utility model provides a paver suitable for construction of road surface subbase through set up moving mechanism and shielding mechanism on this paver, when making this paver be used for the different small-size road surface of width, can be through adjusting moving mechanism's width to and open and shield the mechanism, make drive assembly drive the slider along the guide way downstream, and then make the connecting rod unit remove to the below from the both sides that the ejection of compact case opening is relative. The utility model discloses a guide way includes upper segment, middle section and hypomere, and the guide way upper segment is the dovetail of vertical setting, and its hypomere is the dovetail of downward sloping setting, and the arc dovetail of upper segment and hypomere is connected respectively at the both ends in its middle section. And, because be equipped with between two adjacent link units and enclose the fender, consequently, after the link unit removes, enclose the fender and will also expand along with the link unit, make it form an arc line at the discharge gate department of ejection of compact case and enclose the fender to the width of discharge gate has been reduced. The workman is when using this device, can adjust the position that the connecting rod unit removed according to the width on the road surface of laying, when the road surface broad of laying, look over earlier whether the both sides that need shield the discharge gate reduce the width of discharge gate with this, if need, then open drive assembly, make drive assembly drive slider remove to suitable position after, close drive assembly again. When the drive assembly drives the slider to move, the connecting rod unit and the enclosure also move along with the slider, and a worker can judge the position of the movement of the shielding assembly through the movement of the connecting rod unit. In addition, all be equipped with between two adjacent connecting rod units and enclose the fender, so after sheltering from the subassembly and wrap up the discharge gate both ends, concrete or all the other materials that flow from the discharge gate both ends can fall earlier and enclose on the fender subassembly, then slide to the opening part that shelters from and form between the subassembly along sheltering from the subassembly again to flow subaerially, can not make the material keep somewhere on shielding the subassembly like this, can avoid the waste of material. The utility model discloses a set up the guide way on the workbin, the slider all removes in the guide way, only is close to the connecting rod unit of discharge gate and encloses the material that the fender can be located discharge gate below direct contact pavements after launching. Because of the material that paves is mostly mixtures such as concrete or lime, so set up the guide way and can avoid laying material to get into the guide way at the outflow in-process on ejection of compact case lateral wall, and then make the condition that the slider can't remove in the guide way take place.

Furthermore, the driving assembly comprises a gear I, a gear II, a motor I, a telescopic unit and a chain I, wherein the gear I, the gear II, the motor I, the telescopic unit and the chain I are arranged on the front side wall and the rear side wall of the discharging box; one end of the telescopic unit is fixed on the gear I, and the other end of the telescopic unit is movably connected with a sliding block which is located on the same side wall and farthest from the top of the side wall. The utility model discloses when using, the width size of the discharge gate of workbin is adjusted according to the different needs of width on road surface to the workman, and at this moment, the workman can open motor I, and motor I will drive gear I and rotate, and gear I passes through chain drive gear II and rotates, and gear II then drives the flexible unit and remove to the direction that is close to the discharge gate. At the moment, the telescopic unit drives the slide block which is located on the same side wall and is farthest away from the top of the side wall to move in the direction close to the discharge hole in the guide groove. The slider farthest from the top of the side wall moves to drive the connecting rod unit connected with the slider to move, the connecting rod unit drives the enclosure to expand, the enclosure expands to a larger limit and then drives the connecting rod unit above the enclosure to move, and therefore the operation is repeated all the time to shield the component from expanding according to the width of the discharge port.

Furthermore, the telescopic unit comprises a telescopic pipe I and a telescopic pipe II, one end of the telescopic pipe II is embedded into the telescopic pipe I, one end of the telescopic pipe I, which is far away from the telescopic pipe II, is connected with a gear II, and one end of the telescopic pipe II, which is far away from the telescopic pipe I, is movably connected with a slide block, which is positioned on the same side wall and farthest from the top of the side wall, of the telescopic pipe II; the telescopic pipe I is provided with a limiting ring I at one end, closest to the telescopic pipe II, of the telescopic pipe I, the limiting ring II is arranged at one end, closest to the telescopic pipe I, of the telescopic pipe II, and the inner diameter of the limiting ring II is smaller than that of the limiting ring I. Because the guide groove is in a curve shape, the distances from the guide groove to the edge of the same side wall of the guide groove are different, and the distances from all the positions of the guide groove to the gear II are different. Set up flexible unit with gear II and between the slider farthest away from lateral wall top, make gear II drive the slider through flexible unit and rotate, flexible unit can adapt to the change of distance between gear II and the slider.

Furthermore, the moving mechanism comprises a left fixing plate I and a right fixing plate I which are arranged on the front side wall or the rear side wall of the paver body, the two fixing plates I of the same moving mechanism are positioned on the same horizontal plane, a screw rod is arranged between the two fixing plates I, nuts are arranged at the two ends of the screw rod, a supporting rod is connected to each of the two nuts, and the other end, opposite to the end connected with the nut, of each of the two supporting rods is connected with a roller; the screw thread at screw rod both ends is opposite, is equipped with fixed plate I paver organism lateral wall on be equipped with fixed plate I be located same horizontal plane on fixed plate II, be equipped with motor II on the fixed plate II, the output of motor II is used for the drive screw to rotate. The utility model discloses when adjusting moving mechanism, need use one side jack-up a little of the moving mechanism's that the jack will need to adjust paver organism, make the gyro wheel of this side liftoff, then open the motor II of this side, motor II drives the screw rod and rotates, again because the screw thread at screw rod both ends is opposite, then when the screw rod rotates, the nut that is located the screw rod both sides will all remove to the direction that is close to each other, can reduce the width between two gyro wheels. After the width of the moving mechanism on one side is adjusted, the moving mechanism on the other side is adjusted by the same method, so that the moving mechanisms on the two sides can move on the road surface. In addition, because of shielding mechanism, paving mechanism all have a distance apart from ground, so this device only need reduce moving mechanism's width when the less road surface of width uses, makes four gyro wheels homoenergetic place subaerial, and shields the discharge gate of mechanism and carries out width adjustment, and paving mechanism then need not adjust also can be applicable to narrower road surface.

Further, the mechanism of spreading includes connecting rod IV and the flattening compression roller, the both ends of connecting rod IV are connected with fixed plate I and fixed plate II on the lateral wall before the paver organism respectively, be connected with the flattening baffle that horizontal level set up on the connecting rod IV, paver organism bottom is connected with the flattening compression roller, the height on flattening compression roller apart from ground is unanimous with the height on flattening baffle apart from ground. When a worker paves a road surface by using the device, the moving mechanism and the shielding mechanism need to be adjusted in advance, the used paving material needs to be poured into the storage box, the baiting valve is arranged between the storage box and the discharging box, when the worker starts to move the device to pave the road surface, the baiting valve is opened, and then the pushing assembly is pulled to move the paver. At this moment, the material that paves flows from the discharge gate of storage case, because the workman removes at the pulling paver again, so set up the flattening compression roller in ejection of compact case the place ahead will flatten piling up subaerial laying material, after the flattening compression roller pressed laying material, the flattening baffle was along with continuing to press the laying material after the flattening compression roller pressed, can guarantee that concrete paves evenly, makes the effect of paving good.

Further, the stirring subassembly is including setting up the stirring roller bearing in the discharge gate is inside, be provided with helical blade on the stirring roller bearing, the lateral wall of play workbin is passed to the one end of stirring roller bearing, and its other end and play workbin inner wall rotation are connected, stirring roller bearing protrusion ejection of compact case lateral wall end is connected with gear III, stirring roller bearing protrusion is equipped with gear IV, motor III and chain II on the lateral wall of play workbin, motor III connects gear IV, gear III, gear IV are connected with same chain II. When the device is used, as the paving materials are required to be poured into the storage box, most of the commonly used paving materials are concrete or asphalt and the like, the materials are required to be used up within a certain time, and otherwise, the materials are solidified. The utility model discloses set up the stirring roller bearing in ejection of compact case, when the workman carries out the during operation using this device, open motor III, motor III drives gear IV and rotates, and gear IV drives gear III through chain II and rotates, and gear III then drives the stirring roller bearing and rotates. The spiral blades are arranged on the stirring roller, and after the paving material flows to the discharging box from the storage box, the stirring roller in the discharging box rotates to stir the paving material, so that the paving material can be prevented from solidifying.

Further, the promotion subassembly is including setting up two dead levers on the paver organism, two the dead lever be perpendicular with paver organism lateral wall, and both are located same horizontal plane, two the dead lever swing joint has a catch bar between the other end of relative connection paver organism end. When a worker pushes the device, the worker can directly push or pull the push rod, so that the worker can operate the device more conveniently.

To sum up, the utility model discloses following beneficial effect has:

(1) the utility model discloses a mechanism is shielded in the setting, makes this device when being used for the road surface of different width, and the accessible expandes to shelter from the subassembly and realizes shielding the both ends of the discharge gate of play workbin to reduce the width of discharge gate. In addition, the guide groove is formed in the outer side wall of the discharging box, so that paving materials can be prevented from being brought into the guide groove when flowing out of the discharging hole, and the sliding of the sliding block in the guide groove is influenced.

(2) The utility model discloses a set up in adjacent connecting rod unit and enclose the fender, make when shielding the both ends of discharge gate, can directly flow to the laying material who flows from the inside both ends of play workbin and shelter from the subassembly on, flow along sheltering from the subassembly again to avoided the laying material gathering in shielding the subassembly, thereby caused laying material's waste.

(3) The utility model discloses a set up moving mechanism, can make the workman pass through the interval between the adjusting roller to make the device be applicable to the road surface of different widths.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic side view of a partial cross-section of an embodiment of the present invention;

FIG. 2 is a schematic front view of the shielding assembly of the present invention;

FIG. 3 is a schematic structural view of the middle telescopic unit of the present invention after being cut away;

fig. 4 is a schematic view of the structure of the stirring roller and the helical blade in the present invention.

Reference numbers and corresponding part names in the drawings:

1-paver body, 2-material storage tank, 3-material discharge tank, 411-guide groove, 412-connecting rod I, 413-connecting rod II, 414-enclosure, 421-gear I, 422-gear II, 423-chain I, 424-telescopic pipe I, 425-telescopic pipe II, 426-limiting ring I, 427-limiting ring II, 501-fixing plate I, 502-screw rod, 503-supporting rod, 504-roller, 601-connecting rod IV, 602-spreading baffle, 603-spreading press roller, 701-stirring roller, 702-gear III, 703-gear IV, 704-chain II, 705-helical blade, 801-fixing rod and 802-push rod.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Examples

As shown in fig. 1-4, paver suitable for pavement subbase construction, including paver organism 1, be equipped with the storage case 2 of vertical setting on the paver organism 1 of this embodiment, the equal opening in top and bottom of storage case 2, storage case 2 bottom opening part is connected with vertical setting and rather than the ejection of compact case 3 of switch-on, the bottom opening of ejection of compact case 3, and its inside stirring subassembly that is provided with. Wherein, the stirring subassembly is including setting up the inside stirring roller 701 of discharge gate, is provided with helical blade 705 on the stirring roller 701, and the lateral wall of play workbin 3 is passed to one end of stirring roller 701, and its other end and play workbin 3 inner walls rotation connection. And the end of the stirring roller 701 protruding out of the side wall of the discharging box 3 is connected with a gear III 702, the stirring roller 701 protruding out of the outer side wall of the discharging box 3 is provided with a gear IV 703, a motor III and a chain II 704, the motor III is connected with the gear IV 703, and the gear III 702 and the gear IV 703 are connected with the same chain II 704.

The paver body 1 of this embodiment is provided with moving mechanisms on both sides of the front and rear walls, and is provided with a paving mechanism on the front side wall thereof, and is provided with a pushing assembly on the rear side wall. Wherein, moving mechanism is including setting up two fixed plate I501 about on paver organism 1 preceding lateral wall or rear side wall, and two fixed plate I501 of same moving mechanism are located same horizontal plane, and are equipped with screw rod 502 between it, and the screw rod 502 both ends are equipped with the nut, all are connected with a bracing piece 503 on two nuts, and the other end that two bracing pieces 503 connect the nut end relatively all is connected with gyro wheel 504. And, the screw thread at screw rod 502 both ends is opposite, is equipped with fixed plate II that is located the same horizontal plane with fixed plate I501 on the paver organism 1 lateral wall that is equipped with fixed plate I501, is equipped with motor II on the fixed plate II, and the output of motor II is used for driving the screw rod to rotate. The spreading mechanism of this embodiment includes connecting rod IV 601 and flattening compression roller 603, and the both ends of connecting rod IV 601 are connected with fixed plate I501 and fixed plate II on the lateral wall before the paver organism 1 respectively, are connected with the flattening baffle 602 that horizontal level set up on the connecting rod IV 601, and paver organism 1 bottom is connected with flattening compression roller 603, and the height on flattening compression roller 603 apart from ground is unanimous with the height on flattening baffle 602 apart from ground. In addition, the pushing assembly comprises two fixing rods 801 arranged on the paver body 1, the two fixing rods 801 are perpendicular to the side wall of the paver body 1 and are positioned on the same horizontal plane, and a pushing rod 802 is movably connected between the other ends of the two fixing rods 801, which are connected with the end of the paver body 1 relatively.

The discharge box 3 of this embodiment is controlled both ends and is equipped with respectively and shields the mechanism, shields the mechanism and includes the drive assembly that is used for shielding 3 bottom openings of discharge box and shelters from the subassembly and be used for the drive to shelter from the subassembly and expand. Wherein, drive assembly is including setting up gear I421, gear II 422, motor I, flexible unit and the I423 of chain on the lateral wall around ejection of compact case 3, and motor I is connected with I421 of gear, and I421 of gear and II 422 of gear mesh with I423 of same chain. One end of the telescopic unit of the embodiment is fixed on the gear I421, and the other end of the telescopic unit is movably connected with the slide block which is located on the same side wall and farthest from the top of the side wall. The telescopic unit comprises a telescopic pipe I424 and a telescopic pipe II 425, one end of the telescopic pipe II 425 is embedded into the telescopic pipe I424, one end, far away from the telescopic pipe II 425, of the telescopic pipe I424 is connected with a gear II 422, and one end, far away from the telescopic pipe I424, of the telescopic pipe II 425 is movably connected with a sliding block which is located on the same side wall and farthest from the top of the side wall; one end of the telescopic pipe I424, which is closest to the telescopic pipe II 425, is provided with a limiting ring I426, one end of the telescopic pipe II 425, which is closest to the telescopic pipe I424, is provided with a limiting ring II 427, and the inner diameter of the limiting ring II 427 is smaller than that of the limiting ring I426. The subassembly that shelters from of this embodiment is including setting up the guide way 411 on the lateral wall around ejection of compact case 3, guide way 411 is the dovetail, all be equipped with a plurality ofly in two guide ways 411 rather than the slider that matches, the slider nearest at the lateral wall top of ejection of compact case 3 is fixed on the lateral wall, be located and be equipped with the connecting rod unit between the slider on ejection of compact case 3 front and back both sides wall, the connecting rod unit is including connecting on the slider and with ejection of compact case 3 front and back parallel connecting rod I412 at lateral wall top, I412 equal protrusion in ejection of compact case 3 lateral wall of many connecting rods, the length of I412 of many connecting rods all is greater than the crossing distance apart from guide way 411 in ejection of compact case 3 edge, and be connected with a connecting rod II 413 between the other end of two I412 relative connecting slider ends of connecting rod that are.

When a worker uses the device, the moving mechanism and the shielding mechanism of the device need to be adjusted according to the width of the paved road. When the moving mechanism is adjusted, the paver body 1 on one side of the moving mechanism to be adjusted is jacked up by using a jack to lift off the two rollers 504 on the one side, then the motor II on the same side is started to rotate the screw 502, when the distance between the two rollers 504 is moved to be suitable for the width of the road surface, the motor II is closed, and the moving mechanism on the other side is adjusted by using the same operation. After the moving mechanism of the device is adjusted, the shielding mechanism needs to be adjusted, the motor I is turned on, and when the gear II 422 drives the connecting rod III to move the sliding block to a proper position in the guide groove 411, the motor I is turned off. Finally, the prepared paving material is poured into the storage box 2, and then the discharge valve is opened, so that the worker can push the device to pave the road surface.

The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. The paver is suitable for pavement sub-base construction and is characterized by comprising a paver body (1), wherein a vertically arranged storage box (2) is arranged on the paver body (1), the top and the bottom of the storage box (2) are both open, a vertically arranged discharge box (3) communicated with the storage box (2) is connected to the bottom opening of the storage box (2), and a stirring assembly is arranged in the discharge box (3) and is open at the bottom; the front side wall and the rear side wall of the paver body (1) are respectively provided with a moving mechanism, the front side wall is provided with a paving mechanism, and the rear side wall is provided with a pushing assembly; the left end and the right end of the discharging box (3) are respectively provided with a shielding mechanism, and the shielding mechanism comprises a shielding component for shielding an opening at the bottom of the discharging box (3) and a driving component for driving the shielding component to expand; the shielding component comprises guide grooves (411) arranged on the front side wall and the rear side wall of the discharging box (3), a plurality of slide blocks matched with the guide grooves are arranged in the two guide grooves (411), the slide block closest to the top of the side wall of the discharging box (3) is fixed on the side wall, a connecting rod unit is arranged between the slide blocks positioned on the front side wall and the rear side wall of the discharging box (3), the connecting rod unit comprises connecting rods I (412) which are connected on the sliding block and parallel to the tops of the front side wall and the rear side wall of the discharging box (3), a plurality of connecting rods I (412) protrude out of the side wall of the discharging box (3), the lengths of the connecting rods I (412) are all larger than the shortest distance from the intersection of the edges of the discharging box (3) to the guide groove (411), and a connecting rod II (413) is connected between the other ends of the two connecting rods I (412) which are positioned on the same horizontal plane and are opposite to the ends of the connecting blocks, and a surrounding baffle (414) is arranged between any two adjacent connecting rod units.

2. The paver suitable for pavement underlayer construction according to claim 1, wherein the driving assembly comprises a gear I (421), a gear II (422), a motor I, a telescopic unit and a chain I (423), which are arranged on the front and rear side walls of the discharge box (3), the motor I is connected with the gear I (421), and the gear I (421) and the gear II (422) are meshed with the same chain I (423); one end of the telescopic unit is fixed on the gear I (421), and the other end of the telescopic unit is movably connected with a sliding block which is located on the same side wall and is farthest away from the top of the side wall.

3. The paver of claim 2, characterized in that the telescopic unit comprises a telescopic tube I (424) and a telescopic tube II (425), one end of the telescopic tube II (425) is embedded into the telescopic tube I (424), one end of the telescopic tube I (424), which is far away from the telescopic tube II (425), is connected with a gear II (422), and one end of the telescopic tube II (425), which is far away from the telescopic tube I (424), is movably connected with a slide block, which is located on the same side wall and is farthest from the top of the side wall, of the telescopic tube II (425); one end, closest to the telescopic pipe II (425), of the telescopic pipe I (424) is provided with a limiting ring I (426), one end, closest to the telescopic pipe I (424), of the telescopic pipe II (425) is provided with a limiting ring II (427), and the inner diameter of the limiting ring II (427) is smaller than that of the limiting ring I (426).

4. The paver suitable for the pavement underlayer construction as claimed in claim 1, wherein the moving mechanism comprises a left fixing plate I (501) and a right fixing plate I (501) which are arranged on the front side wall or the rear side wall of the paver body (1), the two fixing plates I (501) of the same moving mechanism are positioned on the same horizontal plane, a screw rod (502) is arranged between the two fixing plates I (501), nuts are arranged at two ends of the screw rod (502), a support rod (503) is connected to each of the two nuts, and the other ends of the two support rods (503) opposite to the ends of the nuts are connected with rollers (504); the screw thread at screw rod (502) both ends is opposite, is equipped with fixed plate I (501) paver organism (1) lateral wall on be equipped with fixed plate I (501) be located same horizontal plane on fixed plate II, be equipped with motor II on the fixed plate II, the output of motor II is used for the drive screw to rotate.

5. The paver of claim 4 adapted for pavement sub-base construction, characterized in that, the mechanism of spreading includes connecting rod IV (601) and flattening compression roller (603), the both ends of connecting rod IV (601) are connected with fixed plate I (501) and fixed plate II on paver organism (1) preceding lateral wall respectively, be connected with flattening baffle (602) that horizontal level set up on connecting rod IV (601), paver organism (1) bottom is connected with flattening compression roller (603), flattening compression roller (603) is apart from the height on ground and flattening baffle (602) apart from the highly uniform on ground.

6. The paver for pavement sub-base construction according to claim 1, characterized in that the stirring assembly comprises a stirring roller (701) arranged inside the discharge port, the stirring roller (701) is provided with a helical blade (705), one end of the stirring roller (701) penetrates through the side wall of the discharge tank (3), and the other end of the stirring roller is rotatably connected with the inner wall of the discharge tank (3); the stirring roller (701) protrudes out of the side wall end of the discharge box (3) and is connected with a gear III (702), the stirring roller (701) protrudes out of the outer side wall of the discharge box (3) and is provided with a gear IV (703), a motor III and a chain II (704), the motor III is connected with the gear IV (703), and the gear III (702) and the gear IV (703) are connected with the same chain II (704).

7. The paver of claim 1, characterized in that the pushing assembly comprises two fixing rods (801) arranged on the paver body (1), the two fixing rods (801) are perpendicular to the side wall of the paver body (1) and located on the same horizontal plane, and a pushing rod (802) is movably connected between the other ends of the two fixing rods (801) which are connected with the end of the paver body (1) relatively.

Images