Expressway medial strip backfilling and distributing device

Abstract

The utility model discloses an expressway medial strip backfilling and distributing device, and relates to the technical field of highway construction, the expressway medial strip backfilling and distributing device comprises a paver, the tail part of the paver is provided with a distributing mechanism, the distributing mechanism comprises an ironing shell, a spiral feeding rod is rotatably arranged in the ironing shell, and the spiral feeding rod is connected with the ironing shell. A material distribution opening is formed in the lower surface of one end, far away from the paver, of the ironing shell; and a paving assembly is arranged under the material distribution opening. According to the spreading machine disclosed by the utility model, the spreading mechanism is arranged and can be used for driving the ironing shell to adjust the position in the horizontal direction, so that the spreading position of the spreading opening can be finely adjusted in the moving and spreading process of the spreading machine, the spreading operation is convenient, and a spiral feeding rod is used for conveying; the backfill material is directly spread to the central isolation belt from the material distribution opening, so that accurate material distribution is realized, manpower is saved, the effect of reducing manpower of mechanical construction machinery is achieved, and potential quality safety hazards caused by uncertain factors of people in the construction process are reduced.

Description

Technical Field

[0001] This utility model relates to the field of highway construction technology, and in particular to a backfilling and material placement device for the central median strip of a highway. Background Technology

[0002] The materials used for backfilling the central median strip of highways are generally the same as those used for the subgrade filling. This work is considered an ancillary project of the road surface. During construction, backfilling of the central median strip usually begins after the base course is paved. Since the central median strip typically houses electromechanical pipelines, the backfill material around the pipelines is required by specifications to be fine aggregate, primarily for the purpose of protecting the pipelines.

[0003] To ensure the compaction quality of the central median strip during construction, layered filling is typically employed, resulting in a lengthy filling period. The fill material is generally transported by dump trucks, and manual labor, along with graders and small excavators, is used for layered placement and leveling. Due to significant contamination of the road base, manual labor, along with sweepers, is employed after backfilling to clean the base layer. In recent years, the domestic labor market has been aging, and labor costs are high, leading to substantial labor costs for backfilling and cleaning personnel. There are many unpredictable factors related to human factors during construction; incomplete cleaning directly impacts road surface quality. The large number of personnel on the construction site also presents significant safety hazards.

[0004] To solve the backfilling and material placement problems mentioned above, it is necessary to improve the existing paver material placement device. Utility Model Content

[0005] This utility model discloses a backfilling and laying device for the median strip of a highway. To achieve the above-mentioned objective, this utility model adopts the following technical solution:

[0006] A backfilling and spreading device for the median strip of a highway includes a paver, a spreading mechanism is provided at the tail of the paver, the spreading mechanism includes a flattening shell, a spiral feeding rod is rotatably arranged inside the flattening shell, and a spreading port is opened on the lower surface of the flattening shell away from the paver.

[0007] A spreading assembly is provided directly below the fabric opening. The spreading assembly includes two adjusting frames. A fabric roller is rotatably connected to the side of the adjusting frame. A limit block is fixedly connected to the surface of the ironing shell. A bidirectional adjusting screw is rotatably connected to the surface of the limit block. A movable block is fixedly connected to the surface of the adjusting frame. The movable block is threadedly connected to the surface of the bidirectional adjusting screw.

[0008] The surface of the hot-pressing shell is provided with a scraper assembly, which includes a scraper plate. Two linkage columns are fixedly connected to the upper surface of the scraper plate, and a movable base plate is fixedly connected to the top of the two linkage columns. A vibration motor is fixedly installed on the upper surface of the movable base plate.

[0009] In a preferred embodiment, the scraper assembly further includes two extension brackets fixedly connected to the surface of the hot-press shell, the bottom ends of the two extension brackets being fixedly connected to a limiting mounting plate, and the surface of the limiting mounting plate having a limiting through hole matching the linkage column.

[0010] In a preferred embodiment, the linkage column is slidably connected to the inner wall of the limiting through hole, and a support spring is sleeved on the surface of the linkage column. The bottom end of the support spring is fixedly connected to the upper surface of the scraper plate, and the top end of the support spring is fixedly connected to the lower surface of the limiting mounting plate.

[0011] In a preferred embodiment, the fabric spreading mechanism further includes two fixed plates fixedly connected to the lower surface of the paver, a limit support rod fixedly connected between the two fixed plates, and an electric telescopic rod fixedly installed on the side of the fixed plates, with a drive seat fixedly connected to the telescopic end of the electric telescopic rod.

[0012] In a preferred embodiment, one end of the drive seat is fixedly connected to the surface of the hot-pressed shell, and the surface of the drive seat is provided with a sliding through hole that matches the limiting support rod. The drive seat is slidably connected to the surface of the limiting support rod through the sliding through hole.

[0013] In a preferred embodiment, a rectangular feed inlet is provided on the upper surface of the screed shell, and a feed pipe is fixedly embedded on the surface of the paver, with the position of the feed pipe corresponding to the rectangular feed inlet.

[0014] In a preferred embodiment, a fabric motor is fixedly mounted on the side of the adjusting frame, and the output shaft of the fabric motor is fixedly connected to one end of the fabric roller shaft.

[0015] As can be seen from the above, the highway median strip backfilling and laying device provided by this utility model has the following technical effects.

[0016] Firstly, by setting up a material placement mechanism, the horizontal position of the screed can be adjusted using this mechanism. This allows for fine-tuning of the material placement position at the material inlet during the paver's movement and paving process, thus facilitating the paving operation. The material is conveyed directly from the material inlet to the central median strip via a spiral feed rod, achieving precise material placement, saving labor, and reducing the need for manual labor in mechanized construction. This also reduces the quality and safety hazards caused by human factors during construction. Furthermore, it solves the quality problems of median strip contamination on the road surface caused by traditional filling methods.

[0017] Secondly, by setting two material distribution rollers below the material distribution port, the material distribution rollers can rotate inwards towards each other, thereby evenly spreading the filler inside the median strip. This also makes it easier to adjust the thickness of the filler, resulting in more uniform spreading of the backfill material and further improving the backfilling quality of the median strip.

[0018] Thirdly, by setting up a scraper assembly, the scraper plate can be used to scrape the backfill material flat in one go during the spreading process. At the same time, the vibrating motor drives the scraper plate to initially compact the fill layer, effectively controlling the backfill paving thickness. Then, the road roller is used for compaction to achieve the designed compaction degree. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of a backfill material distribution device for the central median strip of a highway, as proposed in this utility model.

[0020] Figure 2 This is a bottom view of the structure of a backfilling and laying device for the median strip of a highway proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the flattened shell structure of a backfill material device for the median strip of a highway, as proposed in this utility model.

[0022] Figure 4 This is a side view of the paving component and scraper component of a backfilling and spreading device for the median strip of a highway, as proposed in this utility model.

[0023] In the attached diagram: 1. Paver; 2. Fabric placement mechanism; 3. Fabric placement port; 4. Paver assembly; 5. Scraper assembly; 6. Material supply pipe;

[0024] 201. Ironing shell; 202. Spiral feed rod; 203. Limiting support rod; 204. Electric telescopic rod; 205. Drive base; 206. Rectangular feed port;

[0025] 401. Adjusting frame; 402. Fabric roller; 403. Movable block; 404. Fabric motor; 405. Bidirectional adjusting screw; 406. Limit block;

[0026] 501. Scraper plate; 502. Linkage column; 503. Movable base plate; 504. Vibration motor; 505. Extension bracket; 506. Limiting mounting plate; 507. Support spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Reference Figure 1 and Figure 2A backfilling and spreading device for the median strip of a highway includes a paver 1, a spreading mechanism 2 is provided at the tail of the paver 1, the spreading mechanism 2 includes a flattening shell 201, a spiral feeding rod 202 is rotatably arranged inside the flattening shell 201, and a spreading port 3 is opened on the lower surface of the flattening shell 201 away from the paver 1.

[0029] It should be noted that a rectangular feed inlet 206 is provided on the upper surface of the flattening shell 201, and a feed pipe 6 is fixedly embedded on the surface of the paver 1, with the position of the feed pipe 6 corresponding to the rectangular feed inlet 206.

[0030] Reference Figure 3 and Figure 4 In a preferred embodiment, the fabric spreading mechanism 2 further includes two fixed plates fixedly connected to the lower surface of the paver 1, a limit support rod 203 fixedly connected between the two fixed plates, and an electric telescopic rod 204 fixedly installed on the side of the fixed plates, with a drive seat 205 fixedly connected to the telescopic end of the electric telescopic rod 204.

[0031] It should be noted that one end of the drive seat 205 is fixedly connected to the surface of the hot-pressed shell 201, and the surface of the drive seat 205 is provided with a sliding through hole that matches the limiting support rod 203. The drive seat 205 is slidably connected to the surface of the limiting support rod 203 through the sliding through hole.

[0032] It is worth noting that by setting a material placement mechanism 2 at the tail of the paver 1, the material placement mechanism 2 can be used to drive the flat shell 201 to adjust its position in the horizontal direction. This makes it easier to fine-tune the material placement position of the material placement port 3 during the paving process of the paver 1, so that the material placement port 3 is aligned with the center strip, thus facilitating the material placement operation.

[0033] A spreading assembly 4 is provided directly below the fabric inlet 3. The spreading assembly 4 includes two adjusting frames 401. A fabric roller 402 is rotatably connected to the side of the adjusting frame 401. A fabric motor 404 is fixedly installed on the side of the adjusting frame 401. The output shaft of the fabric motor 404 is fixedly connected to one end of the rotating shaft of the fabric roller 402.

[0034] It is worth noting that by setting a spiral feeding rod 202 inside the hot-pressed shell 201 for conveying, the backfill material is directly spread to the central isolation strip from the material distribution port 3, achieving precise material distribution, saving manpower, achieving the effect of mechanized construction and reducing manpower, reducing the quality and safety hazards caused by human uncertainties during construction; and solving the quality hazards of median base layer pollution to the road surface in traditional filling.

[0035] It should be noted that a limiting block 406 is fixedly connected to the surface of the ironing shell 201, and a bidirectional adjusting screw 405 is rotatably connected to the surface of the limiting block 406. A movable block 403 is fixedly connected to the surface of the adjusting frame 401, and the movable block 403 is threadedly connected to the surface of the bidirectional adjusting screw 405.

[0036] By setting a bidirectional adjusting screw 405, the distance between the two adjusting frames 401 can be adjusted by rotating the bidirectional adjusting screw 405, thereby adjusting the gap between the two fabric rollers 402, which is suitable for laying filler layers of different thicknesses.

[0037] A limit rod is fixedly provided on the surface of the hot-pressed shell 201, and a guide hole matching the limit rod is opened on the surface of the movable block 403. The movable block 403 is slidably connected to the surface of the limit rod through the guide hole.

[0038] It is worth noting that by setting two material rollers 402 below the material inlet 3, the material motor 404 can drive the two material rollers 402 to rotate inwards towards each other, thereby using the material rollers 402 to evenly spread the filler inside the median strip. This also makes it easier to adjust the thickness of the filler, resulting in more uniform backfilling and further improving the backfilling quality of the median strip.

[0039] It should be noted that the surface of the ironing shell 201 is provided with a scraper assembly 5, which includes a scraper plate 501. Two linkage columns 502 are fixedly connected to the upper surface of the scraper plate 501. A movable base plate 503 is fixedly connected to the top of the two linkage columns 502. A vibration motor 504 is fixedly installed on the upper surface of the movable base plate 503.

[0040] Reference Figure 1 and Figure 4 In a preferred embodiment, the scraper assembly 5 further includes two extension brackets 505 fixedly connected to the surface of the hot-press shell 201. The bottom ends of the two extension brackets 505 are fixedly connected to a limiting mounting plate 506. The surface of the limiting mounting plate 506 is provided with a limiting through hole that matches the linkage column 502.

[0041] It should be further explained that the linkage column 502 is slidably connected to the inner wall of the limiting through hole, and a support spring 507 is sleeved on the surface of the linkage column 502. The bottom end of the support spring 507 is fixedly connected to the upper surface of the scraper plate 501, and the top end of the support spring 507 is fixedly connected to the lower surface of the limiting mounting plate 506.

[0042] It is worth noting that by setting up the scraper assembly 5, the scraper plate 501 can be used to scrape the backfill material flat in one go during the spreading process. At the same time, the vibrating motor 504 drives the movable base plate 503 to vibrate. The movable base plate 503 drives the linkage column 502 and the scraper plate 501 to initially compact the fill layer, effectively controlling the backfill paving thickness. Then, the road roller is used for compaction to achieve the designed compaction degree.

[0043] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A device for backfilling a highway median strip, comprising a paver (1), characterized in that, The tail of the paver (1) is provided with a distributing mechanism (2), the distributing mechanism (2) comprises a ironing shell (201), a spiral feeding rod (202) is rotationally arranged in the ironing shell (201), and a distributing port (3) is formed in the lower surface of the end of the ironing shell (201) away from the paver (1); A paving assembly (4) is arranged directly below the distributing port (3), the paving assembly (4) comprises two adjusting frames (401), a distributing roller (402) is rotationally connected to the side surface of the adjusting frame (401), a limiting block (406) is fixedly connected to the surface of the ironing shell (201), a bidirectional adjusting screw (405) is rotationally connected to the surface of the limiting block (406), an active block (403) is fixedly connected to the surface of the adjusting frame (401), and the surface of the active block (403) is threadedly connected with the surface of the bidirectional adjusting screw (405). A scraper assembly (5) is arranged on the surface of the ironing shell (201), the scraper assembly (5) comprises a flattening plate (501), two linkage columns (502) are fixedly connected to the upper surface of the flattening plate (501), an active bottom plate (503) is fixedly connected to the top end of the two linkage columns (502), and a vibration motor (504) is fixedly installed on the upper surface of the active bottom plate (503).

2. The highway median backfilling material placing device according to claim 1, characterized in that, The scraper assembly (5) further comprises two extension supports (505) fixedly connected to the surface of the ironing shell (201), a limiting mounting plate (506) is fixedly connected to the bottom end of the two extension supports (505), and the surface of the limiting mounting plate (506) is provided with limiting through holes matched with the linkage columns (502).

3. The highway median backfilling material placement apparatus of claim 2, wherein, The linkage columns (502) are slidably connected with the inner walls of the limiting through holes, a supporting spring (507) is sleeved on the surface of the linkage column (502), the bottom end of the supporting spring (507) is fixedly connected with the upper surface of the flattening plate (501), and the top end of the supporting spring (507) is fixedly connected with the lower surface of the limiting mounting plate (506).

4. The highway median backfilling material placement apparatus of claim 1, wherein, The distributing mechanism (2) further comprises two fixed plates fixedly connected to the lower surface of the paver (1), a limiting support rod (203) is fixedly connected between the two fixed plates, and an electric telescopic rod (204) is fixedly installed on the side surface of the fixed plate, and the telescopic end of the electric telescopic rod (204) is fixedly connected with a driving seat (205).

5. The highway median backfilling material placement apparatus of claim 4, wherein, One end of the driving seat (205) is fixedly connected with the surface of the ironing shell (201), the surface of the driving seat (205) is provided with a sliding through hole matched with the limiting support rod (203), and the driving seat (205) is slidably connected with the surface of the limiting support rod (203) through the sliding through hole.

6. The highway median backfilling material placement apparatus of claim 1, wherein, A rectangular feeding port (206) is formed in the upper surface of the ironing shell (201), and a feeding pipe (6) is fixedly embedded on the surface of the paver (1), and the position of the feeding pipe (6) corresponds to the rectangular feeding port (206).

7. The highway median backfilling material placement apparatus of claim 1, wherein, A distributing motor (404) is fixedly installed on the side surface of the adjusting frame (401), and the output shaft of the distributing motor (404) is fixedly connected with one end of the rotating shaft of the distributing roller (402).

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