A confined space paving device and method of construction

Abstract

This invention provides a confined space paving device and construction method. The confined space paving device is connected to a material transport vehicle and includes: a hopper, a leveling section, and a movable support section. The hopper is connected to the support section, and the support section is connected to the material transport vehicle via a conveying mechanism. The conveying mechanism transports backfill material from the material transport vehicle to the hopper. The leveling section is movably connected to the support section to adjust its height. The invention provides a construction method for the confined space paving device. The height of the leveling section is adjusted according to a preset paving thickness. The conveying mechanism is activated to transport backfill material from the material transport vehicle to the hopper. The support section is moved by the material transport vehicle, and the backfill material falls from the hopper onto the construction surface and forms a paving layer of a predetermined thickness through the leveling section. The advantages of this invention are that it can be used with small material transport vehicles, has a simple structure, improves the efficiency of confined space backfill paving, reduces the labor intensity of construction workers, and improves paving quality.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and in particular relates to a confined space paving device and construction method. Background Technology

[0002] In existing technologies, earthwork replacement and backfilling are common construction procedures in building and municipal engineering. When backfilling earthwork in confined spaces such as building interiors or pipe trenches, large paving equipment cannot enter due to narrow passages formed by foundations, beams, columns, or the elongated dimensions of the trench. Traditionally, the backfill soil (which is much smaller than large paving equipment) is transported manually using small transport vehicles, and then manually spread and backfilled. This method suffers from low efficiency and technical problems, such as difficulty in controlling the flatness and thickness of the backfill in confined spaces. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a confined space paving device and construction method, which is particularly suitable for use with small material transport vehicles to achieve mechanized backfill paving in confined spaces.

[0004] The technical solution adopted in this invention is: a confined space paving device connected to a material transport vehicle. The confined space paving device includes: a material hopper, a leveling section, and a movable support section. The material hopper is connected to the support section to receive and guide backfill material to fall onto the construction surface. The support section is connected to the material transport vehicle through a conveying mechanism. The conveying mechanism transports the backfill material from the material transport vehicle to the material hopper. The leveling section is movably connected to the support section and is used to regulate the backfill material falling onto the construction surface.

[0005] Furthermore, a vibrator is installed in the hopper.

[0006] Furthermore, the leveling part includes a scraper, which is slidably connected to the support part.

[0007] Furthermore, the conveying mechanism includes a conveyor belt connected to the material transport vehicle and a first end bracket. The conveyor belt is movably connected to the support unit through the first end bracket, and the discharge end of the conveyor belt is located above the inlet of the hopper.

[0008] Furthermore, the support unit includes an installation platform, multiple columns and casters. The hopper and conveying mechanism are connected to the installation platform, the multiple columns are connected to the bottom of the installation platform, each column is equipped with casters, and the leveling part is connected to the column.

[0009] Furthermore, the support also includes a connecting rod, the two ends of which are connected to the installation platform and the material transport vehicle, respectively.

[0010] Furthermore, the support also includes a side baffle, which is installed on the side of the support and its two ends are connected to the corresponding columns.

[0011] On the other hand, the present invention also provides a construction method for a confined space paving device, comprising the following steps:

[0012] Adjust the height of the leveling section according to the preset paving thickness;

[0013] Start the conveyor mechanism to transport the backfill material from the material transport vehicle to the hopper;

[0014] The support unit is moved by the material transport vehicle, and the backfill material falls from the hopper to the construction surface and is paved with a predetermined thickness by the scraper.

[0015] The advantages and positive effects of this invention are: due to the adoption of the above technical solution, it can be used in conjunction with small material transport vehicles; it has the advantages of simple structure, improved efficiency of backfilling soil paving in confined spaces, reduced labor intensity of construction workers, low processing cost, and improved paving quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the present invention in conjunction with a material transport vehicle;

[0017] Figure 2 This is a three-dimensional structural diagram of the support portion according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the back structure of the support portion according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the side structure of the support portion according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the planar structure of a hopper according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the connection between the scraper and the column in one embodiment of the present invention.

[0022] In the picture:

[0023] 1. Column; 2. Mounting platform; 3. Reinforcing components; 4. Casters; 5. Hopper; 6. Scraper; 7. Side baffle; 8. Vibrator; 9. Connecting interface; 10. First end bracket; 11. Connecting rod; 12. Conveyor belt; 13. Material transport vehicle; 14. Fixing components; 15. Adjustment hole. Detailed Implementation

[0024] The embodiments of the present invention will now be described with reference to the accompanying drawings. The described embodiments are only some embodiments of the invention, and not all embodiments.

[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar units or units having the same or similar functions throughout.

[0026] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that terms such as "installation," "connection," and "fixing" should be interpreted broadly, and can refer to direct connection, installation, or fixing, or indirect connection, installation, or fixing. The present invention does not impose any limitations in this regard.

[0027] like Figures 1 to 6 The diagram illustrates an embodiment of a confined space paving device according to the present invention. Connected to a material transport vehicle 13, the confined space paving device includes a hopper 5, a leveling section, and a movable support section. The hopper 5 is connected to the support section to receive and guide backfill material falling onto the construction surface. The support section is connected to the material transport vehicle 13 via a conveying mechanism, which transports the backfill material from the material transport vehicle 13 to the hopper 5. The leveling section is movably connected to the rear side of the support section and is used to regulate the backfill material falling onto the construction surface. In this embodiment, the height of the leveling section can be adjusted according to a preset paving thickness. By leveling the backfill material on the construction surface, the paving thickness is controlled, improving the paving quality. Preferably, the first end of the conveying mechanism is located above the inlet of the hopper 5, and the second end of the conveying mechanism extends into the interior of the material transport vehicle 13. The cross-sectional area of ​​the hopper 5 gradually decreases along the flow direction of the backfill material. Specifically, in this embodiment, it is a tapered structure that is wider at the top and narrower at the bottom, with the top inlet size of the hopper 5 being larger than the bottom outlet size. In this embodiment, the backfill material is backfill soil.

[0028] This invention works in conjunction with a small material transport vehicle 13 for conveying backfill material in confined spaces. By using the material transport vehicle 13 to pull the confined space paving device, the intensity of manual labor is reduced, mechanized paving operations are achieved, and the efficiency and quality of confined space backfilling are improved.

[0029] In this embodiment, a vibrator 8 is provided in the hopper 5. Preferably, the discharge port of the hopper 5 is connected to a reinforcing member 3, which can reduce the deformation of the discharge port. The vibrator 8 is connected to the side wall of the hopper 5 or the reinforcing member 3. The vibrator 8 is used to promote the falling of the backfill material through vibration, reduce the accumulation and blockage of the backfill material, improve the continuity and uniformity of the discharge, and lay a good foundation for subsequent leveling.

[0030] In this embodiment, the leveling part includes a scraper 6, which is slidably connected to the support part. The lower edge of the scraper 6 will level the backfill material (such as backfill soil) that leaks down to the construction surface, effectively controlling the paving thickness of the backfill material and also helping to control the paving flatness of the backfill material.

[0031] In this embodiment, the conveying mechanism includes a conveyor belt 12 connected to the material transport vehicle 13 and a first end bracket 10. The conveyor belt 12 is movably connected to the support part through the first end bracket 10, and the discharge end of the conveyor belt 12 is located above the inlet of the hopper 5.

[0032] In this embodiment, the support includes an installation platform 2, multiple columns 1, and casters 4. A hopper 5 and a first-end bracket 10 of the conveying mechanism are connected to the installation platform 2. Multiple columns 1 are vertically connected below the installation platform 2, and each column 1 has a caster 4 at its bottom. A leveling section is movably connected to the column 1. Preferably, the installation platform 2 is a frame structure formed by connecting multiple steel sections, and the hopper 5 is installed in the middle of the installation platform 2.

[0033] In this embodiment, the support also includes a connecting rod 11, the two ends of which are connected to the installation platform 2 and the material transport vehicle 13, respectively, to enhance structural stability and improve construction quality.

[0034] Preferably, the first end support 10 includes two first vertical rods and a first roller rotatably connected between the two first vertical rods; a second roller (not shown in the figure) is rotatably connected inside the material transport vehicle, and the conveyor belt 12 surrounds the first roller and the second roller to form a closed loop. The mounting platform 2 has a docking interface 9 for connection with the connecting rod 11. The end of the scraper 6 is slidably inserted into a vertical groove on the corresponding column 1. Multiple equally spaced adjustment holes 15 are opened on the side of the vertical groove, and a positioning hole is opened at the end of the scraper. The positioning hole corresponds to the adjustment hole 15 at the appropriate position to adjust the height of the scraper and is fixed by inserting a fixing component 14, which includes bolts and nuts. The scraper can be slid up and down by removing the fixing component 14. After adjusting the scraper to the predetermined height, the fixing component 14 is installed to fix it. This structure is simple and reliable, facilitates the adjustment of the scraper height, and is suitable for construction needs of various paving thicknesses.

[0035] Side rails are provided on both sides of the conveyor belt 12 to prevent the backfill material from spilling during transportation. The specific structure of the conveyor belt 12 and its assembly method with the material transport vehicle 13 are existing technologies. For example, the two side rails are arranged opposite each other, and each side rail is connected to the first vertical rod and the material transport vehicle 13. The width of the conveyor belt 12 is adapted to the distance between the two side rails. The conveyor belt 12 is rotatably connected between the two side rails. The first roller is set above the feed inlet of the hopper 5 to convey the backfill material to the hopper 5. The backfill material is contained in the hopper of the material transport vehicle. The bottom of the hopper is provided with a hopper discharge port that can be controlled to open and close. The second end of the conveying mechanism is located below the hopper discharge port, that is, the backfill material can fall from the hopper discharge port to the conveyor belt 12 and move with the movement of the conveyor belt 12, from the first end of the conveying mechanism to the second end of the conveying mechanism, and then fall from the conveyor belt 12 into the hopper 5, and finally fall from the hopper 5 onto the construction surface.

[0036] In this embodiment, the support also includes side baffles 7, which are installed on the sides of the support. The two ends of the side baffles 7 are connected to corresponding columns 1, respectively, to limit the width of the paved layer and prevent backfill material from overflowing. Preferably, there are two side baffles 7, which are connected to the corresponding columns 1 on the left and right sides of the support, respectively.

[0037] Specifically, in this embodiment, the column 1 is a square steel column, the installation platform 2 is a frame structure consisting of four horizontal and four vertical I-beams connected together, the reinforcing member 3 is made of channel steel, which divides the discharge port into two parts, the moving wheel 4 is a caster wheel, the hopper 5 is made of multiple steel plates welded together, the scraper 6 is made of steel plate, and the surface of the scraper 6 is provided with reinforcing braces to improve rigidity.

[0038] On the other hand, the present invention also provides a construction method for a confined space paving device, comprising the following construction steps:

[0039] Adjust the height of the leveling section according to the preset paving thickness;

[0040] Connect and assemble the confined space paving device with the material transport vehicle;

[0041] Start the conveying mechanism to transport the backfill material of the material transport vehicle 13 to the hopper 5. Preferably, turn on the vibrator 8 to allow the backfill material in the hopper 5 to fall smoothly.

[0042] The confined space paving device moves synchronously with the material transport vehicle 13 to pull the support unit. The backfill material falls from the hopper 5 to the construction surface and forms a paving layer of predetermined thickness through the leveling part.

[0043] This invention, used in conjunction with a material transport vehicle, integrates conveying, spreading, and leveling into one unit, and is suitable for mechanized operations in confined spaces. It improves construction efficiency, solves the problem of difficult quality control in manual paving, and reduces the labor intensity of construction workers. The device is readily available, simple in structure, and easy and labor-saving to operate. It can be fabricated on-site using I-beams, steel plates, and channel steel. It can be reused multiple times, has low cost, and represents a green and environmentally friendly construction method.

[0044] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A confined space paving apparatus for attachment to a haul truck, characterised in that, include: The system includes a hopper, a leveling section, and a movable support section. The hopper is connected to the support section to receive and guide the backfill material as it falls onto the construction surface. The support section is connected to the material transport vehicle via a conveying mechanism, which transports the backfill material from the material transport vehicle to the hopper. The leveling section is movably connected to the support section and is used to regulate the backfill material falling onto the construction surface.

2. The confined space paving device according to claim 1, characterized in that: The hopper is equipped with a vibrator.

3. The confined space paving device according to claim 1, characterized in that: The leveling part includes a scraper, which is slidably connected to the support part.

4. The confined space paving device according to claim 1, characterized in that: The conveying mechanism includes a conveyor belt connected to the material transport vehicle and a first end bracket. The conveyor belt is movably connected to the support part through the first end bracket, and the discharge end of the conveyor belt is located above the inlet of the hopper.

5. The confined space paving device according to any one of claims 1-4, characterized in that: The support unit includes an installation platform, multiple columns, and casters. The hopper and the conveying mechanism are connected to the installation platform. The multiple columns are connected to the bottom of the installation platform. Each column is equipped with a caster at its bottom. The leveling part is connected to the column.

6. The confined space paving device according to claim 5, characterized in that: The support also includes a connecting rod, the two ends of which are connected to the installation platform and the material transport vehicle, respectively.

7. The confined space paving device according to claim 5, characterized in that: The support also includes a side baffle, which is installed on the side of the support and its two ends are respectively connected to the corresponding column.

8. A construction method for a confined space paving device, utilizing the confined space paving device according to any one of claims 1-7, characterized in that, The construction steps include the following: Adjust the height of the leveling section according to the preset paving thickness; The conveying mechanism is activated to transport the backfill material from the material transport vehicle to the hopper; The support unit is moved by the material transport vehicle, and the backfill material falls from the hopper onto the construction surface and forms a paving layer of predetermined thickness through the leveling part.

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