Movable pavement panel laying structure

Abstract

The utility model relates to a paving structure of a movable pavement slab. The paving structure comprises modular pavement slab units and a rolling bearing frame, each modular pavement panel unit comprises a base cloth layer, a reinforcing rod, a quick connecting sleeve and the like, a group of longitudinal sewing lines are fixed on the base cloth layer at an interval of L in the length direction, and a longitudinal embedding cavity is formed between every two adjacent groups of longitudinal sewing lines; the reinforcing rod is embedded in the embedding cavity; the quick connecting sleeves are located on the two sides of the base cloth layers in the length direction and can quickly connect the adjacent base cloth layers. The rolling bearing frame can be used for rolling and laying a plurality of modular pavement slab units which are connected into a whole. Through the matching design of the modular pavement slab units and the coiled bearing frame, a plurality of units can be connected in advance and coiled on the bearing frame, and can be paved after being moved, the paving efficiency is high, the reinforcing rods are embedded into the longitudinal embedding cavities of the base cloth layer to form a flexible base body and directional rigid support composite structure, and the unit bearing capacity of the soft ground is improved.

Description

Technical Field

[0001] This utility model relates to the field of movable walkway panel technology, and more specifically to a movable walkway panel laying structure. Background Technology

[0002] In military operations and emergency maneuver missions, armored vehicles often need to traverse complex terrains such as beaches, soft riverbeds, and deserts. These surfaces, due to their weak bearing capacity and loose soil, easily cause vehicles to sink, severely restricting troop mobility. Traditional temporary road construction often relies on spliced ​​steel plates or precast concrete slabs, which has significant drawbacks:

[0003] ① The excessive weight of steel plates leads to low efficiency in transportation and deployment, and rigid materials are prone to deformation and breakage under impact loads;

[0004] ② The modularity of precast concrete slabs is low, making it difficult to connect and expand quickly, and the brittle material has insufficient impact resistance;

[0005] ③ Existing flexible paving materials (such as ordinary fiber mats) lack a three-dimensional reinforcement structure, have poor resistance to bending and tearing, and are difficult to withstand the high-frequency rolling of armored vehicle tracks.

[0006] In addition, traditional paving equipment lacks an integrated roll-up design and relies on manual deployment, resulting in excessively long deployment times and making it difficult to meet the needs of rapid battlefield response.

[0007] Therefore, how to provide a movable pavement panel laying structure is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] Therefore, the purpose of this utility model is to propose a movable pavement panel laying structure to overcome the lack of integrated roll-up design in existing traditional paving equipment, which relies on manual unfolding, resulting in excessively long deployment time and difficulty in meeting the needs of rapid battlefield response.

[0009] The technical solution of this utility model is a movable pavement structure, including modular pavement units and roll-up support frames;

[0010] The modular channel panel unit includes:

[0011] The base fabric layer has a set of longitudinal stitches fixed at intervals L along its length, and longitudinal embedding cavities are formed between adjacent sets of longitudinal stitches.

[0012] A reinforcing rod is embedded in the embedded cavity;

[0013] The quick-connect sleeves are located on both sides of the base fabric layer along its length, enabling the quick connection of adjacent base fabric layers.

[0014] The roll-laying support frame can lay multiple modular track panel units connected as a whole into rolls.

[0015] According to the laying structure of this utility model, the base fabric layer is composed of a double-layer high-strength fiber multi-axial fabric, and multiple embedded cavities are formed by the longitudinal stitching lines.

[0016] According to the laying structure of this utility model, the longitudinal seam thread is ultra-high strength polyethylene fiber yarn, and each group of the longitudinal seam thread consists of more than one single row of longitudinal seam threads.

[0017] According to the laying structure of this utility model, the reinforcing rod has a diameter of 20-30mm, a bending strength ≥400MPa, and an impact toughness ≥300kJ / m. 2 .

[0018] According to the laying structure of this utility model, the reinforcing rod is a continuous fiber-reinforced / resin-based composite material rod, and the length of each reinforcing rod is consistent with the width of the base fabric layer.

[0019] According to the laying structure of this utility model, the base fabric layer is a rectangular structure with a length of 4-6 meters and a width of 3-5 meters. According to the laying structure of this utility model, the quick-connect sleeve is made of high-strength fiber tape sewn together.

[0020] According to the laying structure of this utility model, the surface of the base fabric layer has a high-strength wear-resistant resin coating, and its perimeter is bound with high-strength fiber webbing.

[0021] According to the laying structure of this utility model, the roll-forming support frame includes:

[0022] The main body of the support frame is rectangular, with support frames at both ends;

[0023] The roller is rotatably connected to the bearing seats of the two support frames.

[0024] The crank is connected to one end of the roller and is located outside the support frame.

[0025] As can be seen from the above technical solution, compared with the prior art, this utility model has the following beneficial effects:

[0026] 1. This utility model features rapid deployment and high load-bearing compatibility.

[0027] Through the combined design of modular pavement panels and roll-up support frames, multiple units can be pre-connected and rolled onto the support frame, enabling a continuous "mobile and paving" operation mode using forklift traction, which improves efficiency by more than 70% compared to traditional manual splicing.

[0028] The reinforcing bar is made of continuous fiber-reinforced composite material with a diameter of 20-30mm and a bending strength of ≥400MPa. It is embedded in the longitudinal cavity of the base fabric layer to form a composite structure of "flexible matrix + directional rigid support". This increases the unit load-bearing capacity of the pavement on soft ground (such as sand and mud) to 15-20 tons / m², meeting the needs of heavy armored vehicles.

[0029] 2. This utility model has optimized tear resistance and durability.

[0030] The base fabric layer uses a double-layer high-strength fiber multi-axial fabric (such as high-strength polyester fiber / high-strength polyethylene fiber blended canvas), combined with more than 10 ultra-high-strength polyethylene fiber longitudinal stitches set at intervals of L, forming a dense shear-resistant grid, effectively dispersing the concentrated load of the track. The warp tensile strength of the base fabric layer is ≥8000N / cm, and the tear resistance is more than 3 times higher than that of traditional canvas.

[0031] The high-strength wear-resistant resin coating and the fiber webbing around the edges significantly reduce the surface wear rate, extending the service life to more than 2,000 cycles under the high-frequency rolling of the track.

[0032] 3. This utility model features modular expansion and terrain adaptability.

[0033] The quick-connect sleeve is sewn with high-strength fiber tape and is designed to fit the outer diameter of the reinforcing bar, enabling tool-free insertion of adjacent units. After splicing, the overall width of the pavement panel remains 3-5 meters (consistent with the unit width), which can flexibly adapt to different terrain width requirements.

[0034] The matching design of the unit size (4-6 meters long × 3-5 meters wide) and the roll carrier allows a single roll to accommodate 40-60 meters of continuous track panels, with a roll diameter of ≤1.2 meters, making it suitable for loading into standard military transport vehicles. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 A schematic diagram of the modular guide panel unit provided by this utility model;

[0037] Figure 2 A longitudinal sectional view of the modular drive panel unit provided by this utility model;

[0038] Figure 3 An enlarged view of the longitudinal sectional view of the modular lane panel unit is shown;

[0039] Figure 4 A schematic diagram of the embedded cavity is shown;

[0040] Figure 5 The diagram illustrates the roll-up support frame. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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.

[0043] Traditional temporary road construction relies heavily on steel plate splicing or precast concrete slab laying. This presents several challenges: the excessive weight of steel plates leads to inefficient transportation and deployment, and rigid materials are prone to deformation and breakage under impact loads; precast concrete slabs have low modularity, making rapid connection and expansion difficult, and their brittle nature results in insufficient impact resistance; existing flexible paving materials (such as ordinary fiber mats) lack three-dimensional reinforcement structures, exhibiting poor bending and tear resistance, making them unable to withstand the high-frequency rolling pressure of vehicle tracks. Furthermore, traditional paving equipment lacks integrated roll-up design, relying on manual deployment which leads to excessively long deployment times, failing to meet the demands of rapid battlefield response.

[0044] In view of this, the present invention provides a movable pavement panel laying structure, see attached drawing. Figure 1-5 It includes modular track panel unit 10 and roll-up support frame 20.

[0045] The modular panel unit 10 includes: a base fabric layer 101, a reinforcing rod 103, a quick-connect sleeve 104, etc.; the base fabric layer 101 is fixed with a set of longitudinal stitches 102 at intervals L along its length, and a longitudinal embedding cavity 1021 is formed between adjacent sets of longitudinal stitches 102; the reinforcing rod 103 is embedded in the embedding cavity 1021; the quick-connect sleeve 104 is located on both sides of the base fabric layer 101 along its length, and can quickly connect adjacent base fabric layers 101.

[0046] The roll-mounted support frame 20 is capable of laying multiple modular track panel units 10 connected as a whole into rolls.

[0047] In this invention, the base fabric layer 101 is composed of a double-layer high-strength fiber multiaxial fabric, and multiple embedded cavities 1021 are formed by the longitudinal stitching 102. The longitudinal stitching 102 is made of ultra-high-strength polyethylene fiber yarn, and each group of longitudinal stitching 102 consists of more than 10 single-row longitudinal stitching 102.

[0048] In this invention, the reinforcing rod 103 has a diameter of 20-30 mm, a bending strength ≥ 400 MPa, and an impact toughness ≥ 300 kJ / m. 2 The reinforcing rod 103 is a continuous fiber-reinforced / resin-based composite material rod, and the length of each reinforcing rod 103 is the same as the width of the base fabric layer 101. The base fabric layer 101 is a rectangular structure with a length of 4-6 meters and a width of 3-5 meters.

[0049] Advantageously, the quick-connect sleeve 104 is made of high-strength fiber tape. The surface of the base fabric layer 101 has a high-strength abrasion-resistant resin coating (sprayed), and its perimeter is bound with high-strength fiber webbing 105. In this utility model, the roll-forming support frame 20 includes: a support frame body 201, a support frame 202, a roll 203, and a crank handle 204; the support frame body 201 is rectangular, with support frames 202 at both ends; the roll 203 is rotatably connected to the bearing seats of the two support frames 202, and the crank handle 204 is connected to one end of the roll 203 and located outside the support frame 202.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "joining", "fixing", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0051] When the solution of this utility model is applied to a specific embodiment, it is as follows:

[0052] Example 1: Fabrication of Modular Channel Panel Units

[0053] Base fabric layer sewing:

[0054] Cut double-layer high-strength multi-axial fabric (high-strength polyester fiber / high-strength polyethylene fiber blended canvas) with a width of 5 meters and a length of 6 meters;

[0055] Using an industrial sewing machine, a set of longitudinal stitches 102 are sewn along the length of the base fabric layer at intervals of L = 12cm. Each set consists of 12 parallel stitches of ultra-high strength polyethylene fiber yarn (linear density ≥ 2000D) to form a sewing strip with a width of about 3cm. An embedded cavity 1021 with a width of 9cm is formed between adjacent sewing strips.

[0056] Reinforcing rod embedding:

[0057] A continuous carbon fiber reinforced PA6 composite rod with a diameter of 25 mm (flexural strength 420 MPa, impact toughness 320 kJ / m) was used. 2 Insert into the embedded cavity 1021, the length of the rod is consistent with the width of the base fabric layer, and 5cm of exposed part is reserved at both ends;

[0058] The reinforcing rod 103 is bonded and fixed to the base fabric layer 101 using a hot pressing process.

[0059] Connecting sleeve and edge binding:

[0060] A quick-connecting sleeve 104 made of high-strength aramid webbing is sewn at both ends of the base fabric layer along the length direction. The inner diameter of the sleeve is 26mm, and it is interference-fitted with the exposed end of the reinforcing rod 103.

[0061] The base fabric layer is bound with 105 fiber webbing of the same material around the edges, with a stitch density of ≥8 stitches / cm;

[0062] The surface is coated with a polyurethane wear-resistant resin coating (thickness 0.5mm, Shore hardness ≥85D).

[0063] Example 2: Assembly and installation of roll support frame

[0064] Support frame structure:

[0065] The main body of the rectangular support frame 201 is welded from 50×50mm square steel tubes, with dimensions of 4.3m long × 0.8m wide × 0.9m high. The top of the support frames 202 on both sides is equipped with a fixed seat with ball bearings.

[0066] A 150mm diameter steel tube roller 203 is passed through a bearing housing and connected to a manual crank 204 at one end. The surface of the roller is covered with a 3mm thick anti-slip rubber layer.

[0067] Sheet metal rolls:

[0068] Ten modular pavement panels 10 are connected end to end by quick-connect sleeves 104 to form a continuous pavement panel with a total length of 40-60 meters.

[0069] Crank the handle 204 to drive the roller 203 to rotate, tightly winding the track panel onto the roller. The outer diameter after winding is about 1.1 meters.

[0070] Mechanized paving:

[0071] Insert the forks of a 3-ton electric forklift into the bottom of the support frame (the bottom of the support frame may have a slot with a limiting protrusion inside the slot) and lift the support frame to a height of 1 meter off the ground;

[0072] The support frame is pulled backward along the predetermined path at a speed of 2-3 km / h, and the track panel on the roller 203 is released simultaneously.

[0073] Example 3: Maintenance and Recycling

[0074] Damage repair: For locally damaged base fabric layers, cut and replace the corresponding unit blocks, and reconnect them through connecting sleeve 104;

[0075] Rewinding and storage: Reverse crank the 204 rewind channel panel, roll it up, cover it with a waterproof tarpaulin, and store it outdoors.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0077] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A movable pavement panel laying structure, characterized in that, Includes modular track panel units (10) and roll-mounted support frames (20); The modular channel panel unit (10) includes: The base fabric layer (101) has a set of longitudinal stitches (102) fixed at intervals of L along its length, and longitudinal embedding cavities (1021) are formed between adjacent sets of longitudinal stitches (102). A reinforcing rod (103) is embedded in the embedded cavity (1021); The quick-connect sleeve (104) is located on both sides of the base fabric layer (101) along its length, and can quickly connect adjacent base fabric layers (101). The roll-mounted support frame (20) is capable of laying multiple modular track panel units (10) connected as a whole in rolls.

2. The movable walkway panel laying structure according to claim 1, characterized in that, The base fabric layer (101) is composed of a double-layer high-strength fiber multiaxial fabric, and is divided by the longitudinal stitching (102) to form a plurality of the embedded cavities (1021).

3. The movable walkway panel laying structure according to claim 2, characterized in that, The longitudinal stitching thread (102) is ultra-high strength polyethylene fiber yarn, and each set of the longitudinal stitching thread (102) consists of more than 10 single-row longitudinal stitching threads (102).

4. The movable walkway panel laying structure according to claim 1, characterized in that, The reinforcing rod (103) has a diameter of 20-30 mm, a bending strength ≥400 MPa, and an impact toughness ≥300 kJ / m. 2 .

5. The movable walkway panel laying structure according to claim 4, characterized in that, The reinforcing rod (103) is a continuous fiber-reinforced / resin-based composite material rod, and the length of each reinforcing rod (103) is consistent with the width of the base fabric layer (101).

6. The movable pavement panel laying structure according to claim 5, characterized in that, The base fabric layer (101) is a rectangular structure with a length of 4-6 meters and a width of 3-5 meters.

7. The movable walkway panel laying structure according to claim 1, characterized in that, The quick-connect sleeve (104) is made of high-strength fiber tape.

8. A movable pavement panel laying structure according to any one of claims 1-7, characterized in that, The base fabric layer (101) has a high-strength wear-resistant resin coating on its surface, and is edged with high-strength fiber webbing (105) around its perimeter.

9. A movable pavement panel laying structure according to any one of claims 1-7, characterized in that, The roll-forming support frame (20) includes: The main body of the support frame (201) is rectangular, and has support frames (202) at both ends; The roller (203) is rotatably connected to the bearing seats of the two support frames (202). The crank handle (204) is connected to one end of the roller (203) and is located outside the support frame (202).

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