A road paving device for municipal road construction

Abstract

The present invention relates to the technical field of municipal road construction, and specifically provides a road paving device for municipal road construction, comprising two ground beam seats, connecting frames are slidably arranged on the two ground beam seats, a scraping plate is arranged on the connecting frame, and a pulling component is arranged between the two ends of the scraping plate and the connecting frame. The pulling component is used to sense and adjust the position of the scraping plate, so that the paving materials accumulated on the front side of the scraping plate are evenly distributed, so that the scraping plate can evenly lay the evenly distributed paving materials on the road surface, avoiding uneven paving of the road surface. At the same time, a push-pull component is also arranged on the connecting frame, and the push-pull component can push the scraping plate to move along its own length direction. Under the coordinated action of the push-pull component and the pulling component, the paving materials with a smaller overall accumulation on the front side of the scraping plate can also be evenly distributed, thereby further avoiding the occurrence of uneven paving of the road surface.

Description

Technical Field

[0001] The invention relates to the technical field of municipal road construction, in particular to a road paving device for municipal road construction. Background Art

[0002] A road paving device is a mechanical equipment specially used for road leveling operations. It is mainly used for paving asphalt and concrete pavements to ensure the flatness and density of the road surface. The device is usually used in new construction, repair or maintenance of road projects, including highways, municipal roads, airport runways, etc.

[0003] For example, Chinese patent CN111926655A discloses a pavement cement paving device for road and bridge construction. This solution uses a structure in which vertical plates and E-shaped frames are flexibly installed. The height of the vertical plates can be adjusted up and down according to the height of the pavement to be paved, so that the vertical plates can flatten the cement concrete. A guide block is set in the middle of the front end of the vertical plate, and the bottom plate and the chassis are driven forward by an electric wheel, thereby driving the main plate forward, so that the vertical plate moves forward, and the guide block pushes the cement concrete accumulated in the middle of the pavement to both sides of the pavement, so that the pavement is flat and the cement concrete is evenly laid on the pavement.

[0004] However, the guide block in the above scheme needs to be pushed in the middle of the cement concrete accumulated in the middle of the road surface to ensure that the concrete pushed to both sides is uniform. If the guide block does not evenly distribute the cement concrete, it will cause too much accumulation on one side and too little accumulation on the other side. When it is subsequently paved, it will cause the heights of the two sides of the road to be different, affecting the flatness of the road surface. Summary of the invention

[0005] Based on this, it is necessary to provide a road paving device for municipal road construction to address the problem that the heights of both sides of the road are different during the current road paving, which affects the flatness of the road surface.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A road paving device for municipal road construction, comprising:

[0008] Two ground beam seats are symmetrically laid on both sides of the road, and connecting frames are slidably arranged on the two ground beam seats, and the connecting frames can slide along the length direction of the two ground beam seats;

[0009] A scraping plate, both ends of which are movably connected to the connecting frame and perpendicular to the ground, a pulling assembly is arranged between the two ends of the scraping plate and the connecting frame, the connecting frame drives the scraping plate to move to scrape the road, the pulling assembly can sense and adjust the position of the scraping plate, and the pulling assembly is configured as follows:

[0010] When the pulling component senses that the amount of paving materials accumulated on the front side of the scraper plate is greater than a preset value and is unevenly distributed, the pulling component adjusts the inclination of the scraper plate to distribute the side with a larger amount of accumulation to the other side;

[0011] A push-pull assembly, which can push the scraper plate to move along its length direction, and the push-pull assembly is configured as follows:

[0012] When the amount of paving materials accumulated on the front side of the scraper plate is less than a preset value and is unevenly distributed, the pulling component adjusts the inclination of the scraper plate, and after the push-pull component pushes the scraper plate to move to the side with a smaller amount of accumulation, the pulling component pushes the scraper plate to move in the opposite direction relative to the forward direction, and the push-pull component pulls the scraper plate to reset;

[0013] An auxiliary scraping component can scrape the road surface scraped by the scraping plate multiple times.

[0014] Furthermore, the pulling assembly includes a first telescopic cylinder, an elastic connecting rod and a sensing member, one end of the first telescopic cylinder is fixedly arranged on the connecting frame, the other end of the first telescopic cylinder is fixedly connected to the elastic connecting rod, the other end of the elastic connecting rod is movably connected to two ends of the scraping plate, the sensing member is located on the elastic connecting rod, the sensing member senses the length of the elastic connecting member, if the scraping plate tilts due to uneven accumulation on the front side of the scraping plate, the lengths of the two elastic connecting rods are inconsistent, and the first telescopic cylinder pulls the end of the elastic connecting rod with a larger change to change the tilting direction.

[0015] Furthermore, sliding grooves are provided at both ends of the scraper plate, and the sliding grooves extend along the length direction of the scraper plate. A connecting protrusion is provided at one end of the elastic connecting rod, and the connecting protrusion is hinged in the sliding groove, and the hinged position can slide in the sliding groove.

[0016] Furthermore, the elastic connecting rod includes a telescopic rod and a spring, the spring is sleeved on the outer circumference of the telescopic rod, and two ends of the spring are respectively fixedly connected to two ends of the telescopic rod.

[0017] Furthermore, the push-pull assembly includes a second telescopic cylinder and a connecting plate, the connecting plate is movably connected to the connecting frame and the connecting plate is slidably connected to the middle position of the upper end of the scraper plate, one end of the second telescopic cylinder is fixedly connected to the connecting plate, and the other end of the second telescopic cylinder is fixedly connected to the scraper plate, and the extension and retraction of the second telescopic cylinder can drive the scraper plate to move along its length direction.

[0018] Furthermore, a slide groove is provided at the connection between the connecting frame and the connecting plate, and the slide groove extends along the forward direction of the scraper plate. A slide rod is fixedly arranged on the connecting plate, and the slide rod is slidably arranged in the slide groove and can rotate.

[0019] Furthermore, the auxiliary scraper assembly includes an auxiliary scraper and a plurality of rotating disks, the auxiliary scraper is connected to the connecting frame, the auxiliary scraper is located at the rear side of the scraper plate, the auxiliary scraper is perpendicular to the ground, a plurality of rotating disks are rotatably arranged on the connecting frame and are located between the auxiliary scraper and the scraper plate, the plurality of rotating disks rotate synchronously and contact the road surface scraped by the scraper plate, and the auxiliary scraper scrapes the road surface scraped by the rotating disk.

[0020] Furthermore, a driving assembly is provided on the connecting frame, and the driving assembly can drive a plurality of rotating disks to rotate.

[0021] Furthermore, the driving assembly includes a driving motor and a plurality of transmission gears, wherein the driving motor is fixedly mounted on the connecting frame, and the plurality of transmission gears are coaxially and fixedly mounted on a plurality of rotating disks, and the rotating shaft of the driving motor drives the plurality of transmission gears to rotate so as to drive the plurality of rotating disks to rotate.

[0022] Furthermore, a third telescopic cylinder is fixedly provided on the connecting frame, and a telescopic end of the third telescopic cylinder is fixedly connected to the auxiliary scraper. The third telescopic cylinder can adjust the height of the auxiliary scraper by telescoping.

[0023] The beneficial effects of the present invention are:

[0024] The present invention provides a scraper plate that can be tilted, and pulling components are provided at both ends of the scraper plate. The pulling components are used to sense and adjust the position of the scraper plate, so that the paving materials accumulated on the front side of the scraper plate are evenly distributed, and the scraper plate lays the evenly distributed paving materials evenly on the road surface, avoiding uneven paving of the road surface.

[0025] The present invention provides a push-pull assembly, which can push the scraper plate to move along its own length direction. Under the cooperation of the push-pull assembly and the pulling assembly, the paving materials with a smaller overall accumulation on the front side of the scraper plate can also be evenly distributed, thereby further avoiding the occurrence of uneven paving of the road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a road paving device for municipal road construction provided by one embodiment of the present invention;

[0027] Figure 2 for Figure 1 A front view of a road paving device for municipal road construction provided in an embodiment;

[0028] Figure 3 for Figure 2 A cross-sectional view along AA of a road paving device for municipal road construction provided in an embodiment;

[0029] Figure 4 for Figure 2 A cross-sectional view along line BB of a road paving device for municipal road construction provided in an embodiment;

[0030] Figure 5 A schematic structural diagram of the bottom of a connecting frame of a road paving device for municipal road construction provided by an embodiment of the present invention;

[0031] Figure 6 for Figure 5 A front view of a road paving device for municipal road construction provided in an embodiment;

[0032] Figure 7 for Figure 6 A cross-sectional view along CC of a road paving device for municipal road construction provided in an embodiment;

[0033] Figure 8 for Figure 7 A partial enlarged view of a portion X of a road paving device for municipal road construction provided in an embodiment;

[0034] Fig. 9 for Figure 5 A bottom view of a road paving device for municipal road construction provided in an embodiment;

[0035] Fig.10 for Fig. 9 A cross-sectional view along DD of a road paving device for municipal road construction provided in an embodiment;

[0036] Fig.11 for Fig.10 A partial enlarged view of part Y of a road paving device for municipal road construction provided in one embodiment.

[0037] in:

[0038] 100. Ground beam seat;

[0039] 200, connecting frame; 201, slide rail; 202, slide groove; 203, convex plate; 210, connecting plate; 211, slide rod; 212, first connecting groove; 220, scraping plate; 221, slide groove; 222, second connecting groove; 230, telescopic rod; 231, connecting protrusion; 232, spring; 240, first telescopic cylinder; 250, second telescopic cylinder; 260, third telescopic cylinder; 270, rotating disk; 271, transmission gear; 280, driving motor; 290, auxiliary scraper;

[0040] 300. Fixed bracket. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] Refer to the following Figure 1-Figure 11 To describe a road paving device for municipal road construction provided by the present invention.

[0045] A road paving device for municipal road construction includes two ground beam seats 100 symmetrically arranged on both sides of the road, a connecting frame 200 is slidably arranged on the two ground beam seats 100, and slide rails 201 are provided at both ends of the connecting frame 200, and the upper ends of the two ground beam seats 100 are respectively located in the two slide rails 201, the connecting frame 200 can move on the two ground beam seats 100 along the length direction of the two ground beam seats 100, a scraping plate 220 is connected below the connecting frame 200, the lower end of the scraping plate 220 has a toothed tip, and both ends of the scraping plate 220 are movably connected to the connecting frame 200, and a pulling component is provided at the specific movable connection, which can sense the position of the scraping plate 220 and can also adjust the position of the scraping plate 220.

[0046] It can be understood that when the connecting frame 200 drives the scraping plate 220 to move along the length direction of the two ground beam seats 100, the scraping plate 220 scrapes on the road surface, and there will be piles of paving materials on the road surface. The scraping plate 220 can push these paving materials when moving to spread them on the road surface. When the amount of paving materials is greater than the preset value (the preset value refers to the amount of paving materials when the flow effect on the inclined scraping plate 220 is poor) and is evenly accumulated on the front side of the scraping plate 220 (the front side of the scraping plate 220 refers to the front side located in the forward direction of the scraping plate 220), the pulling components at both ends of the scraping plate 220 are evenly stressed. At this time, the scraping plate 220 does not tilt, but steadily pushes the paving materials to be spread on the road surface; if the amount of paving materials is greater than the preset value and is unevenly accumulated on the front side of the scraping plate 220 , the scraper plate 220 is subjected to uneven force when moving, and the pulling force on the side with a large amount of accumulation is greater than that on the side with a small amount of accumulation, causing the scraper plate 220 to tilt. If the position of the scraper plate 220 is not adjusted, as the scraper plate 220 moves forward, the material on the side with a small amount of accumulation will flow to the side with a large amount of accumulation, thereby making the paving material on the side with a small amount of accumulation less and less, until there is no paving material on the side with a small amount of accumulation, and the road surface cannot be leveled. Therefore, the pulling component can sense the tilt direction of the scraper plate 220, and the pulling component pulls the side with a large amount of material accumulation, thereby changing the tilt direction of the scraper plate 220, so that the material on the side with a large amount of accumulation gradually flows to the other end. When the material accumulation amounts at both ends are similar, the pulling component is gradually reset, thereby ensuring that the material on the front side of the scraper plate 220 is evenly distributed, so that the road surface is paved flat.

[0047] The connecting frame 200 is also provided with a push-pull assembly, which can push the scraper plate 220 to move along its length direction, that is, the push-pull assembly can push the scraper plate 220 to move along its length direction. When the amount of paving materials accumulated on the front side of the scraper plate 220 is less than the preset value and is unevenly distributed, the scraper plate 220 will still be tilted by the uneven force, and the pulling assembly adjusts the tilt direction of the scraper plate 220 so that the side with relatively more accumulation flows to the other side. However, since the amount of accumulation on the front side of the scraper plate 220 is less as a whole, it will cause The effect of flowing from the end with more accumulation to the end with less accumulation is poor, so a push-pull component is provided, so that after the pulling component adjusts the scraper plate 220 to change the inclination direction, the push-pull component pushes the scraper plate 220 along its own length direction and moves toward the end with less accumulation. At this time, the raw materials on the front side of the scraper plate 220 have a tendency to move toward the end with less accumulation under the action of the scraper plate 220 moving forward and the push-pull component pushing the scraper plate 220 to move, thereby enhancing the flow effect of the raw materials and making them evenly distributed even when the overall accumulation is small.

[0048] It should be noted that after the push-pull assembly pushes the scraper plate 220 to move, it can also pull the scraper plate 220 to reset. Before the scraper plate 220 resets, the pulling assemblies at both ends of the scraper plate 220 will simultaneously push both ends of the scraper plate 220 to move in the opposite direction relative to the forward direction of the scraper plate 220, and the speed of pushing the scraper plate 220 is the same as the forward speed of the connecting frame 200, so that the scraper plate 220 is relatively stationary in the forward direction for a short time. During this period, the push-pull assembly pulls the scraper plate 220 to reset, thereby reducing the impact of the scraper plate 220 on a small amount of paving materials (that is, reducing the amount of paving materials driven by the scraper plate 220 to reset when it is reset). Before the paving materials on the front side of the scraper plate 220 are not evenly distributed, the push-pull assembly and the pulling assembly repeat the above process until the materials on the front side of the scraper plate 220 are evenly distributed. The cooperation of the pulling assembly and the pushing assembly enables the paving material to move laterally (lateral movement refers to the left and right sides of the forward direction of the scraper plate 220). When the material moves laterally, the material will be more compact, thereby improving the compactness of the road surface.

[0049] The connecting frame 200 is also provided with an auxiliary scraping component, which can scrape the road surface scraped by the scraping plate 220 for multiple times, thereby improving the flatness of the road surface.

[0050] Specifically, the pulling assembly in the embodiment of the present invention includes a first telescopic cylinder 240, an elastic connecting rod and a sensing member (not shown in the figure). One end of the first telescopic cylinder 240 is fixedly connected to the connecting frame 200. To facilitate the connection between the first telescopic cylinder 240 and the connecting frame 200, a convex plate 203 is provided on the front side of the connecting frame 200. One end of the first telescopic cylinder 240 is fixedly provided on the convex plate 203, and the other end of the first telescopic cylinder 240 is fixedly connected to the elastic connecting rod, and the other end of the elastic connecting rod is movably connected to the two ends of the scraping plate 220. The elastic connecting rod can be extended and retracted along its own axis, and the first telescopic cylinder 240 can drive the elastic connecting rod to extend and retract when extending and retracting, and the elastic connecting rod drives the scraping plate 220 to move in the forward direction. The sensing member is located on the elastic connecting rod, and the sensing member can sense the length of the elastic connecting rod.

[0051] For example, during the forward movement of the scraper plate 220, if the paving materials accumulated on the front side of the scraper plate 220 are evenly distributed, the two elastic connecting rods are stretched to the same length. At this time, the sensing element senses the same length of the two elastic connecting rods, and thus no signal is sent to the first telescopic cylinder 240; if the paving materials accumulated on the front side of the scraper plate 220 are unevenly distributed, the elastic connecting rods at both ends of the scraper plate 220 are subjected to uneven force, and the two elastic connecting rods are stretched to different lengths. The sensing element senses the different lengths of the two elastic connecting rods, and thus a signal is sent to the first telescopic cylinder 240 at the end of the elastic connecting rod with a longer length. The first telescopic cylinder 240 is shortened to pull the elastic connecting rod, and the elastic connecting rod pulls one end of the scraper plate 220 to make the scraper plate 220 tilt in the opposite direction.

[0052] It should be noted that the sensing element in the present invention can be a laser rangefinder, which measures the length of the elastic connecting rod. Of course, the sensing element is not limited to the laser rangefinder, but can also be other components that can sense the length of the elastic connecting rod, which is not specifically limited here.

[0053] In order to facilitate the active connection between the elastic connecting rod and the two ends of the scraping plate 220, sliding grooves 221 are provided on the two ends of the scraping plate 220, and the sliding grooves 221 extend along the length direction of the scraping plate 220, and a connecting protrusion 231 is provided on one end of the elastic connecting rod, and the connecting protrusions 231 are symmetrically arranged, and the two connecting protrusions 231 are hinged in the sliding grooves 221, and the hinge point can slide in the sliding grooves 221, so as not to limit the connection of the elastic connecting rod with the scraping plate 220 at other angles. For example, when the scraping plate 220 is not tilted, the two elastic connecting rods are perpendicular to the front side of the scraping plate 220, and when the scraping plate 220 is tilted, the angles between the two elastic connecting rods and the scraping plate 220 are an acute angle and an obtuse angle. If the two elastic connecting rods are only hinged at the two ends of the scraping plate 220, the scraping plate 220 will not tilt, but the two elastic connecting rods will extend synchronously, and it will be impossible to sense whether the raw materials accumulated on the front side of the scraping plate 220 are in an uneven state through the tilt of the scraping plate 220.

[0054] In a further embodiment, the elastic connecting rod includes a telescopic rod 230 and a spring 232. The spring 232 is sleeved on the outer circumference of the telescopic rod 230, and the two ends of the spring 232 are fixedly connected to the two ends of the telescopic rod 230, so that the telescopic rod 230 can be elastically extended and retracted, that is, when the telescopic rod 230 is subjected to the force of the scraper plate 220, the telescopic rod 230 is extended, and the telescopic rod 230 pulls the spring 232 to extend. The spring 232 can give a reaction force to the scraper plate 220 so that the scraper plate 220 can overcome the paving materials accumulated on the front side. If the amount of paving materials accumulated is large, the length of the two telescopic rods 230 is extended to the limit, and the spring 232 is in an extended state. As the scraper plate 220 moves, the paving materials on the front side of the scraper plate 220 gradually The scraper plate 220 is paved on the road surface and gradually decreases. When the paving materials on the front side of the scraper plate 220 are not enough to overcome the pulling force of the spring 232, the spring 232 pulls the telescopic rod 230 to shorten, and the telescopic rod 230 pulls the scraper plate 220. If the paving materials on the front side of the scraper plate 220 are evenly distributed, the two springs 232 synchronously pull the telescopic rod 230, and the scraper plate 220 still does not tilt at this time. Only when the paving materials on the front side are unevenly distributed will the two springs 232 pull the telescopic rod 230 to shorten to different lengths, which will cause the scraper plate 220 to tilt. At this time, the first telescopic cylinder 240 intervenes to adjust the paving materials accumulated on the front side of the scraper plate 220, so that the paving materials accumulated on the front side of the scraper plate 220 are evenly distributed.

[0055] In a further embodiment, the push-pull assembly of the present invention includes a second telescopic cylinder 250 and a connecting plate 210. The connecting plate 210 is connected to the connecting frame 200 and the connecting frame 200 is slidably connected to the middle position of the upper end of the scraper plate 220. The second telescopic cylinder 250 is fixedly connected to the connecting plate 210, and the other end of the second telescopic cylinder 250 is fixedly connected to the scraper plate 220. When the second telescopic cylinder 250 is telescoped, it can drive the scraper plate 220 to move along its length direction, that is, move along the length direction of the scraper plate 220 itself, so that the scraper plate 220 can push the paving material laterally.

[0056] Specifically, in order to facilitate the connection between the connecting plate 210 and the scraping plate 220, a slide groove 202 is opened at the connection between the connecting frame 200 and the connecting plate 210, and the slide groove 202 extends along the forward direction of the scraping plate 220, and a slide rod 211 is fixedly arranged on the upper end of the connecting plate 210, and the slide rod 211 is slidably connected in the slide groove 202, and the slide rod 211 can also rotate in the slide groove 202. The purpose of this arrangement is to adapt to the inclination of the scraping plate 220. When the scraping plate 220 is tilted, the connecting plate 210 can rotate and slide in the slide groove 202, thereby avoiding restricting the movement of the connecting plate 210.

[0057] It should be noted that a first connection groove 212 is provided at the bottom of the connection plate 210, and the middle position of the upper end of the scraping plate 220 is slidably arranged in the first connection groove 212, a second connection groove 222 is provided at the middle position of the upper end of the scraping plate 220, and one end of the second telescopic cylinder 250 is fixedly connected to the inner wall of the second connection groove 222. In this embodiment, there are two second telescopic cylinders 250, which are symmetrically arranged in the second connection groove 222. The bottom end of the slide bar 211 on the connection plate 210 is located in the first connection groove 212 on the connection plate 210, and the bottom end of the slide bar 211 extends into the second connection groove 222 of the scraping plate 220. The other ends of the two second telescopic cylinders 250 are fixedly connected to the slide bar 211. When the two second telescopic cylinders 250 are extended, the scraping plate 220 is driven to move. It can be understood that when one of the two second telescopic cylinders 250 is extended, the other one is shortened to drive the scraping plate 220 to move.

[0058] In a further embodiment, the auxiliary scraping assembly of the present invention includes an auxiliary scraper 290 and a plurality of rotating disks 270. The auxiliary scraper 290 is connected to the connecting frame 200, and the auxiliary scraper 290 is located on the rear side of the scraping plate 220. The plurality of rotating disks 270 are arranged between the auxiliary scraper 290 and the scraping plate 220, and the plurality of rotating disks 270 are parallel to the road surface. The plurality of rotating disks 270 in this embodiment are evenly arranged, and the plurality of rotating disks 270 can rotate on themselves. The rotating disks 270 can rotate to contact the road surface, thereby scraping the road surface again, and the auxiliary scraper 290 can scrape the road surface scraped by the rotating disk 270 again, thereby further improving the flatness of the road surface.

[0059] In a further embodiment, a driving assembly is provided on the connecting frame 200, and the driving assembly is used to drive a plurality of rotating disks 270 to rotate. The driving assembly includes a driving motor 280 and a plurality of transmission gears 271. The driving motor 280 is fixedly disposed on the connecting frame 200, and the plurality of transmission gears 271 are coaxially and fixedly disposed on the top of the rotating disk 270. The rotating shaft of the driving motor 280 drives the plurality of transmission gears 271 to rotate, and the plurality of transmission gears 271 drives the plurality of rotating disks 270 to rotate, thereby smoothing the road surface smoothed by the scraping plate 220 again.

[0060] In a further embodiment, a third telescopic cylinder 260 is fixedly provided on the connecting frame 200, and the other end of the third telescopic cylinder 260 is fixedly connected to the upper end of the auxiliary scraper 290. When the third telescopic cylinder 260 is telescoped, it can drive the auxiliary scraper 290 to move up and down, thereby adjusting the height of the auxiliary scraper 290.

[0061] It should be noted that, in this embodiment, the connecting frame 200 is also connected to a fixing frame 300, and the fixing frame 300 is used to be connected to a bearing mechanism (not shown in the figure). The bearing mechanism is used to push the entire connecting frame 200 to slide on the two ground beam seats 100, and the bearing mechanism can be various tractors.

[0062] The specific working process of a road paving device for municipal road construction provided by the present invention is described in combination with the above embodiments:

[0063] Two ground beam seats 100 are arranged parallel to each other on both sides of the road, and the connecting frame 200 is installed so that the two slide rails 201 of the connecting frame 200 are located at the upper ends of the two ground beam seats 100. The third telescopic cylinder 260 is adjusted to adjust the height of the auxiliary scraper 290. The driving motor 280 is turned on, and the driving motor 280 drives a plurality of transmission gears 271 to rotate. The plurality of transmission gears 271 drive a plurality of rotating disks 270 to rotate. The fixing frame 300 on the connecting frame 200 is connected to a bearing mechanism (not shown in the figure). The bearing mechanism pulls the connecting frame 200, and the connecting frame 200 pulls the scraper plate 220 forward to start the road paving operation.

[0064] The amount of paving material accumulated on the front side of the scraper plate 220 is greater than the preset value and is evenly distributed:

[0065] When the amount of paving materials accumulated on the front side of the scraper plate 220 is greater than a preset value and is evenly distributed, the scraper plate 220 pushes these paving materials when it moves forward. Since the paving materials are evenly distributed, the telescopic rods 230 at both ends of the scraper plate 220 extend synchronously to pull the spring 232 to extend. At this time, the sensing component senses that the two telescopic rods 230 extend synchronously, and no signal is sent to the first telescopic cylinder 240. The accumulated paving materials are gradually spread on the road surface under the action of the forward movement of the scraper plate 220. The rotating disk 270 and the auxiliary scraper 290 on the connecting frame 200 successively scrape the road surface scraped by the scraper plate 220 for multiple times, thereby improving the flatness of the road surface.

[0066] The amount of paving material accumulated on the front side of the scraper plate 220 is greater than the preset value and is unevenly distributed:

[0067] If the paving materials on the front side of the scraper plate 220 are unevenly distributed, the telescopic rods 230 at both ends of the scraper plate 220 are extended to different lengths, that is, the telescopic rod 230 on the side with a large amount of paving materials is extended to a longer length than that on the side with a small amount of paving materials, and the scraper plate 220 tilts toward the side with a large amount of paving materials. At this time, the sensor senses that the lengths of the two telescopic rods 230 are different, and the sensor sends a signal to shorten the first telescopic cylinder 240 on the longer end of the telescopic rod 230, thereby pulling the end with a large amount of paving materials to change the tilt direction of the scraper plate 220, so that the paving materials on the side with a large amount of paving materials flow to the side with a small amount of paving materials, thereby balancing the two ends of the scraper plate 220, and the paving materials accumulation at both ends of the scraper plate 220 is gradually balanced, and the scraper plate 220 is gradually reset and no longer tilted. When the paving materials on the front side of the scraper plate 220 are uneven again, the sensor sends a signal again to continuously adjust the scraper plate 220, so that the paving materials on the front side of the scraper plate 220 are kept as uniform as possible, thereby not affecting the smooth paving of the road surface.

[0068] A small amount of paving material is accumulated on the front side of the screed plate 220 and the distribution is uneven:

[0069] When the amount of paving materials accumulated on the front side of the scraper plate 220 is less than the preset value and is unevenly distributed, the scraper plate 220 changes its tilt direction, making the paving material flow less effective. Therefore, the second telescopic cylinder 250 pushes the scraper plate 220 to move along its own length direction and toward the end with less accumulation. Under the action of the scraper plate 220 continuing to move forward and the second telescopic cylinder 250 pushing the scraper plate 220 to move, the flow effect of the paving materials is enhanced, so that a small amount of paving materials on the front side of the scraper plate 220 can also move toward the end with relatively less accumulation. When the second telescopic cylinder 250 pulls While the scraper plate 220 is being reset, the first telescopic cylinders 240 at both ends of the scraper plate 220 are synchronously extended, and the speed of the synchronous extension is the same as the forward speed of the connecting frame 200, so that the scraper plate 220 is relatively stationary in the forward direction, thereby reducing the amount of paving materials driven to be reset when the scraper plate 220 is reset. The second telescopic cylinder 250 continuously reciprocates and extends, and at the same time, the first telescopic cylinder 240 also continuously extends and extends, and the above process is repeated until the paving materials on the front side of the scraper plate 220 are evenly distributed and then stop extending and retracting. After the even distribution, the scraper plate 220 continuously advances to lay the paving materials evenly on the road surface.

[0070] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A road paving device for municipal road construction, characterized in that: include: Two ground beam seats are symmetrically laid on both sides of the road, and connecting frames are slidably arranged on the two ground beam seats, and the connecting frames can slide along the length direction of the two ground beam seats; A scraping plate, both ends of which are movably connected to the connecting frame and perpendicular to the ground, a pulling assembly is arranged between the two ends of the scraping plate and the connecting frame, the connecting frame drives the scraping plate to move to scrape the road, the pulling assembly can sense and adjust the position of the scraping plate, and the pulling assembly is configured as follows: When the amount of paving materials accumulated on the front side of the scraper plate is greater than a preset value and is unevenly distributed, the pulling assembly adjusts the inclination of the scraper plate to distribute the side with a larger amount of accumulation to the other side; A push-pull assembly, which can push the scraper plate to move along its length direction, and the push-pull assembly is configured as follows: When the amount of paving materials accumulated on the front side of the scraper plate is less than a preset value and is unevenly distributed, the pulling component adjusts the inclination of the scraper plate, and after the push-pull component pushes the scraper plate to move to the side with a smaller amount of accumulation, the pulling component pushes the scraper plate to move in the opposite direction relative to the forward direction, and the push-pull component pulls the scraper plate to reset; An auxiliary scraping component, which can scrape the road surface scraped by the scraping plate multiple times; The pulling assembly includes a first telescopic cylinder, an elastic connecting rod and a sensing member, one end of the first telescopic cylinder is fixedly arranged on the connecting frame, the other end of the first telescopic cylinder is fixedly connected to the elastic connecting rod, the other end of the elastic connecting rod is movably connected to two ends of the scraping plate, the sensing member is located on the elastic connecting rod, the sensing member senses the length of the elastic connecting rod, if the scraping plate tilts due to uneven accumulation on the front side of the scraping plate, the lengths of the two elastic connecting rods are inconsistent, and the first telescopic cylinder pulls the end of the elastic connecting rod with a larger change to change the tilting direction.

2. The road paving device for municipal road construction according to claim 1, characterized in that: Sliding grooves are provided at both ends of the scraping plate, and the sliding grooves extend along the length direction of the scraping plate. A connecting protrusion is provided at one end of the elastic connecting rod, and the connecting protrusion is hinged in the sliding groove, and the hinged position can slide in the sliding groove.

3. The road paving device for municipal road construction according to claim 1, characterized in that: The elastic connecting rod comprises a telescopic rod and a spring. The spring is sleeved on the outer circumference of the telescopic rod. Two ends of the spring are respectively fixedly connected to two ends of the telescopic rod.

4. The road paving device for municipal road construction according to claim 1, characterized in that: The push-pull assembly includes a second telescopic cylinder and a connecting plate, wherein the connecting plate is movably connected to the connecting frame and slidably connected to the middle position of the upper end of the scraping plate, one end of the second telescopic cylinder is fixedly connected to the connecting plate, and the other end of the second telescopic cylinder is fixedly connected to the scraping plate, and the extension and retraction of the second telescopic cylinder can drive the scraping plate to move along its length direction.

5. The road paving device for municipal road construction according to claim 4, characterized in that: A slide groove is provided at the connection between the connecting frame and the connecting plate, and the slide groove extends along the forward direction of the scraping plate. A slide rod is fixedly arranged on the connecting plate, and the slide rod is slidably arranged in the slide groove and can rotate.

6. The road paving device for municipal road construction according to claim 1, characterized in that: The auxiliary scraper assembly includes an auxiliary scraper and a plurality of rotating disks, wherein the auxiliary scraper is connected to the connecting frame, the auxiliary scraper is located at the rear side of the scraper plate, the auxiliary scraper is perpendicular to the ground, a plurality of rotating disks are rotatably arranged on the connecting frame and are located between the auxiliary scraper and the scraper plate, the plurality of rotating disks rotate synchronously and contact the road surface scraped by the scraper plate, and the auxiliary scraper scrapes the road surface scraped by the rotating disk.

7. The road paving device for municipal road construction according to claim 6, characterized in that: The connecting frame is provided with a driving assembly, and the driving assembly can drive a plurality of rotating disks to rotate.

8. The road paving device for municipal road construction according to claim 7, characterized in that: The driving assembly includes a driving motor and a plurality of transmission gears. The driving motor is fixedly arranged on the connecting frame. The plurality of transmission gears are coaxially and fixedly arranged on a plurality of rotating disks. The rotating shaft of the driving motor drives the plurality of transmission gears to rotate so as to drive the plurality of rotating disks to rotate.

9. The road paving device for municipal road construction according to claim 6, characterized in that: A third telescopic cylinder is fixedly arranged on the connecting frame, and a telescopic end of the third telescopic cylinder is fixedly connected to the auxiliary scraper. The third telescopic cylinder can adjust the height of the auxiliary scraper by telescoping.

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