Geotechnical cloth paving device

Abstract

The utility model discloses a geotechnical cloth paving device, which belongs to the technical field of road construction and comprises a mounting frame fixed at the front end of an engineering vehicle, and a first rolling wheel unit and a second rolling wheel unit which are sequentially arranged in the mounting frame in a penetrating manner along the advancing direction of the engineering vehicle, the first rolling wheel unit and the second rolling wheel unit are rotationally connected with the mounting frame through a rotating shaft and form an auxiliary wheel synchronously advancing with an engineering vehicle, and a supporting area used for supporting a geotechnical cloth roll is formed between the first rolling wheel unit and the second rolling wheel unit which upwards penetrate out of the mounting frame. The geotechnical cloth pulled out by the geotechnical cloth roll sequentially passes through the surfaces of the first rolling wheel unit and the second rolling wheel unit in the supporting area and then is wound to the position below the second rolling unit and the first rolling unit to be in compaction contact with the road surface. And the paved geotechnical cloth is mechanically compacted, so that the construction quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to road construction technical field especially relates to a geotextile spreading device. BACKGROUND

[0002] At present, the traditional geotextile laying process, including stacking, unfolding and spreading and other procedures, mostly rely on manual operation, and the construction efficiency is low, which leads to the extension of construction period.

[0003] In order to improve the efficiency, the existing construction unit adopts the way of auxiliary mechanical spreading of engineering vehicle, such as CN222160854U discloses a roadbed geotextile laying device, including: mobile platform, lifting piece and traction piece, lifting piece is installed at the end of mobile platform, traction piece and lifting piece are connected, which is used for traction geotextile to carry out laying operation under the driving of mobile platform, specifically, the traction piece is composed of mounting part, traction chain and connecting roller, the mounting part is fixed on the output end of lifting piece, the traction chain is connected with the mounting part and the end part of connecting roller respectively, the geotextile to be spread is sleeved on the connecting roller. However, the above-mentioned geotextile laying device is only suitable for geotextile with reel, and cannot be used for most geotextile without reel sold on the market; and the geotextile is laid with the forward movement of the mobile platform, and cannot be fully attached to the road surface, so personnel need to step on the geotextile behind the mobile platform for compaction, and the construction quality is difficult to guarantee. UTILITARIAN CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a geotextile spreading device, which is suitable for most coiled geotextile on the market and can mechanically compact the spread geotextile to guarantee the construction quality.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A geotextile paving device includes a mounting frame fixed to the front end of an engineering vehicle, and a first roller unit and a second roller unit sequentially arranged within the mounting frame along the direction of travel of the engineering vehicle. The first roller unit and the second roller unit are rotatably connected to the mounting frame via a rotating shaft, forming auxiliary wheels that move synchronously with the engineering vehicle. A support area for supporting geotextile rolls is formed between the first roller unit and the second roller unit extending upward through the mounting frame. The geotextile pulled out from the geotextile roll passes sequentially over the surfaces of the first roller unit and the second roller unit within the support area, and then wraps around to the bottom of the second roller unit and the first roller unit to compact and contact the road surface. As the engineering vehicle moves forward, the first and second roller units of this device rotate as auxiliary wheels, generating traction friction on the geotextile roll located in the support area, thereby driving the geotextile roll to rotate. This is not limited by whether the geotextile roll contains a cylinder, thus ensuring the applicability of the device. The geotextile that winds around to the bottom of the first and second roller units is compacted once by the first and second roller units and then again by the subsequent engineering vehicle, achieving adhesion to the road surface without manual intervention, effectively ensuring construction efficiency and quality.

[0007] A spreading roller is fixed to the side of the mounting frame away from the engineering vehicle. The spreading roller is arranged along an axis parallel to the rotating shaft. The geotextile pulled from the surface of the second roller pressing unit passes over the spreading roller and reaches below the second roller pressing unit. The spreading roller effectively expands the geotextile pulled from the second roller pressing unit, allowing it to be smoothly guided under the second roller pressing unit, avoiding wrinkles and ensuring construction quality.

[0008] A pressing assembly is provided above the mounting frame. The pressing assembly includes a swing arm hinged to the side of the mounting frame near the engineering vehicle and a pressing plate disposed at the end of the swing arm. The pressing plate is located above the support area and has an inner arc surface that mates with the surface of the geotextile roll. The inner arc surface of the pressing plate is in continuous surface-to-surface contact with the rotating geotextile roll surface to limit the position of the geotextile roll, allowing the geotextile roll to rotate stably within the support area, thereby facilitating the smooth extraction of the geotextile from the first and second roller pressing units.

[0009] A connecting lug is fixed on the side of the pressure plate facing away from the inner arc surface, and the connecting lug is hinged to the end of the swing arm.

[0010] A spreading plate is fixed to the side of the mounting frame near the engineering vehicle. The spreading plate is configured to elastically abut against the geotextile behind the first roller unit. The spreading plate elastically presses against the geotextile, and as the engineering vehicle moves forward, it smooths out the geotextile that has been compacted once by the first and second roller units, increasing the contact area between the geotextile and the road surface.

[0011] The mounting brackets are at least two in number, arranged side by side along a direction parallel to the axis of rotation, and adjacent mounting brackets are detachably connected by connecting rods. Each mounting bracket is also detachably connected to the engineering vehicle. The side-by-side arrangement of multiple mounting brackets can accommodate geotextiles of various widths. Furthermore, when used for the construction of large-width geotextiles, it facilitates the disassembly, handling, and storage of the mounting brackets, improving convenience.

[0012] Both the first roller unit and the second roller unit are composed of groups of rubber tires.

[0013] This utility model has the following beneficial effects:

[0014] This invention involves installing a mounting frame at the front of an engineering vehicle, on which a first roller pressing unit and a second roller pressing unit are mounted. As the engineering vehicle moves forward, the first and second roller pressing units rotate as auxiliary wheels, generating traction friction on the geotextile roll located within the support area, thereby driving the geotextile roll to rotate. This is not limited by whether the geotextile roll contains a cylinder, ensuring the applicability of the device. Simultaneously, the geotextile wrapped around the first and second roller pressing units is compacted once by the first and second roller pressing units and then further compacted by the subsequent engineering vehicle, achieving adhesion to the road surface without manual intervention, effectively ensuring construction efficiency and quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0018] Figure 3 This is a side view of the present invention.

[0019] 1. Mounting frame; 101. Connecting seat; 102. Connecting rod; 103. Support rod; 2. First roller pressing unit; 3. Second roller pressing unit; 4. Rotating shaft; 5. Spreading roller; 6. Pressing assembly; 601. Swing arm; 602. Pressing plate; 603. Connecting ear; 7. Spreading plate; 701. Fixing plate; 8. Geotextile roll. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figure 1 As shown, this utility model provides a geotextile spreading device, including a mounting frame 1 fixed to the front end of an engineering vehicle, and a first roller unit 2 and a second roller unit 3 sequentially arranged within the mounting frame 1 along the forward direction of the engineering vehicle. Specifically, a connecting seat 101 detachably connected to the engineering vehicle is fixed on one side of the mounting frame 1. The first roller unit 2 and the second roller unit 3 are both composed of groups of rubber tires. Each rubber tire is rotatably connected to the mounting frame 1 via a rotating shaft 4, forming an auxiliary wheel that moves synchronously with the engineering vehicle. A support area for supporting the geotextile roll 8 is formed between the first roller unit 2 and the second roller unit 3 extending upward through the mounting frame 1. Figure 3As shown, the geotextile pulled out by the geotextile roll 8 passes sequentially over the surfaces of the first roller unit 2 and the second roller unit 3 within the support area, and then wraps around to the bottom of the second roller unit and the first roller unit to compact and contact the road surface. As the engineering vehicle moves forward, the first roller unit 2 and the second roller unit 3 rotate counterclockwise as auxiliary wheels, generating traction friction on the geotextile roll 8 located within the support area, thereby driving the geotextile roll 8 to rotate clockwise, completing the geotextile paving work. Regardless of whether the geotextile roll 8 contains a cylinder, it can complete the driven rotation within the support area, ensuring the applicability of the device. Furthermore, the geotextile wrapped around to the bottom of the first roller unit 2 and the second roller unit 3 undergoes one compaction by the first roller unit 2 and the second roller unit 3, followed by a second compaction by the subsequent engineering vehicle, achieving adhesion to the road surface without manual intervention, effectively ensuring construction efficiency and quality.

[0025] Preferably, a spreading roller 5 is fixed to the side of the mounting frame 1 away from the engineering vehicle. The spreading roller 5 is arranged along an axis parallel to the rotating shaft 4. The geotextile pulled from the surface of the second roller pressing unit 3 passes over the spreading roller 5 and reaches below the second roller pressing unit 3. The spreading roller 5 effectively spreads the geotextile pulled from the second roller pressing unit, allowing it to be smoothly guided under the second roller pressing unit, avoiding wrinkles and ensuring construction quality.

[0026] like Figure 3 As shown, a pressing assembly 6 is provided above the mounting frame 1. The pressing assembly 6 includes a swing arm 601 hinged to the side of the mounting frame 1 near the engineering vehicle and a pressing plate 602 disposed at the end of the swing arm 601. The pressing plate 602 is located above the support area and has an inner arc surface that mates with the surface of the geotextile roll 8. More preferably, to ensure the flexibility of the pressing plate 602, a connecting ear 603 is fixed on the side of the pressing plate 602 facing away from the inner arc surface. 03 is hinged to the end of the swing arm 601; the pressing plate 602 presses on the geotextile roll 8 under the action of gravity. As the geotextile is spread, the diameter of the geotextile roll 8 decreases. The pressing plate 602 swings down with the swing arm 601. The inner arc surface of the pressing plate 602 is in continuous surface-to-surface contact with the surface of the rotating geotextile roll 8, so that the geotextile roll 8 rotates stably in the support area and avoids front and back displacement. This is conducive to the smooth pulling of the geotextile from the first roller pressing unit 2 and the second roller pressing unit 3.

[0027] In order to ensure that the pressure plate 602 has sufficient height to stably cover the geotextile roll 8, a support rod 103 is vertically provided on the mounting frame 1 and hinged to the head end of the swing arm 601.

[0028] Further preferred, such as Figure 2As shown, a spreading plate 7 is fixed on the side of the mounting frame 1 near the engineering vehicle. The spreading plate 7 is configured to elastically abut against the geotextile behind the first roller unit 2 at its bottom. Specifically, the spreading plate 7 is a rubber plate, and the top of the rubber plate is fixed to the mounting frame 1 by a fixing plate 701. The bottom of the spreading plate 7 elastically abuts against the geotextile. As the engineering vehicle moves forward, the geotextile that has been compacted once by the first roller unit 2 and the second roller unit 3 is smoothed out, increasing the contact area between the geotextile and the road surface.

[0029] To accommodate geotextiles of various widths, at least two mounting frames 1 are arranged side-by-side parallel to the rotation axis 4, and adjacent mounting frames 1 are detachably connected via connecting rods 102. Each mounting frame 1 has its own independently installed rubber tire, spreading roller 5, spreading plate 7, and pressing assembly 6. This combination of multiple mounting frames 1 allows for the construction of large-width geotextiles, while also facilitating disassembly, handling, and storage of the mounting frames 1, thus improving ease of use.

[0030] When implementing the above technical solution, a single mounting frame 1 uses a geotextile roll 8 with a width of 2m, such as... Figure 1 As shown, when constructing a 4m wide geotextile roll 8, two mounting frames 1 are connected side-by-side. A connecting rod 102 is inserted between adjacent frames of the two mounting frames 1, and the end of the connecting rod 102 is fixed to the frame body with bolts. The connecting seat 101 of each mounting frame 1 is connected to the connecting piece at the front of the engineering vehicle. The geotextile roll 8 is placed between the front and rear rubber tires, as shown. Figure 3 As shown, the geotextile is pulled out clockwise from the geotextile roll 8, passes around the spreading roller 5, and is placed under the front and rear rubber tires in sequence. The engineering vehicle is started, and the engineering vehicle moves forward, driving the rubber tires to rotate counterclockwise. At this time, the rubber tires synchronously drive the geotextile roll 8 to rotate under the friction force, and compact the geotextile below. Meanwhile, the spreading plate 7 located behind the rubber tires smooths the geotextile, ensuring that the geotextile is flat on the road surface. The engineering vehicle continues to compact the geotextile a second time. Compared with the existing technology, the construction efficiency and quality of the entire construction process are effectively improved.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A geotextile spreading device, characterized in that The installation frame is fixed on the front end of the engineering vehicle, and the first roller unit and the second roller unit are sequentially arranged in the installation frame along the forward direction of the engineering vehicle, and the first roller unit and the second roller unit are rotatably connected with the installation frame through the rotating shaft and form auxiliary wheels which advance synchronously with the engineering vehicle, and the first roller unit and the second roller unit which pass through the installation frame upward form a supporting area for supporting the geotextile roll, and the geotextile pulled out from the geotextile roll passes through the surfaces of the first roller unit and the second roller unit in the supporting area in sequence and then winds around the second roller unit and the first roller unit below and contacts the road surface for compaction.

2. A geotextile spreading device according to claim 1, characterized in that The installation frame is fixed with a spreading roller on the side away from the engineering vehicle, and the spreading roller is arranged along the axis direction parallel to the rotating shaft, and the geotextile pulled out from the surface of the second roller unit passes around the spreading roller and then reaches the second roller unit below.

3. A geotextile spreading device according to claim 1, characterized in that The installation frame is provided with a roll pressing assembly above, and the roll pressing assembly comprises a swing arm hinged on the side of the installation frame close to the engineering vehicle and a cloth pressing plate arranged at the end of the swing arm, and the cloth pressing plate is located above the supporting area and has an inner arc surface matched with the surface of the geotextile roll.

4. A geotextile spreading device according to claim 3, characterised in that The side of the cloth pressing plate away from the inner arc surface is fixed with a connecting lug, and the connecting lug is hinged with the end of the swing arm.

5. A geotextile spreading device according to claim 1, wherein The installation frame is fixed with a cloth spreading plate on the side close to the engineering vehicle, and the cloth spreading plate is configured to elastically abut on the geotextile behind the first roller unit through the bottom.

6. A geotextile spreading device according to any one of claims 1-5, characterized in that The installation frame is at least two, arranged side by side along the direction parallel to the rotating shaft, and the adjacent installation frames are detachably connected through the connecting rod, and each installation frame is detachably connected with the engineering vehicle.

7. A geotextile spreading device according to claim 1, wherein The first roller unit and the second roller unit are both composed of a group of rubber tires.

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