Slope composite floor

Abstract

The slope composite floor is of a sandwich structure, the skin, the core material and the skin are combined into a whole in a bonding mode, the slope composite floor comprises a slope section and horizontal sections installed on the two sides of the slope section, the two sides of the slope section are provided with combination faces in lap joint with the horizontal sections, and the combination faces on the two sides are arranged in a high-low staggered mode. The slope section is consistent with the slope required by the floor in gradient; one end of the horizontal section is fixedly connected with the combination surface of the inclined surface section; and a lap joint step is arranged at the other end and used for being assembled with other composite floors in a lap joint mode. The joint of the horizontal section and the inclined surface section is reinforced by using an epoxy plate instead of a core material, and the horizontal section and the inclined surface section are connected in a manner of positioning and fixing by using a bolt and adhering by using an adhesive. The gradient is designed according to the actual laying angle, the laying requirement of the train slope floor is met, the composite floor can be normally installed and connected with other plane composite floors, the bonding position is firmly bonded, the bolts are used for fixing, and the connection stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of rail transit, and more specifically, to a sloping composite floor. Background Technology

[0002] Composite flooring is a type of bonded composite flooring with advantages such as lightweight, flame retardancy, heat insulation, and sound insulation. It employs a "sandwich" structure—a skin layer + a core layer, all bonded together. The skin layer uses phenolic resin, known for its excellent corrosion resistance, heat resistance, and mechanical strength, and epoxy resin, known for its superior adhesive and physical-mechanical properties. This combination ensures the flooring's temperature and fire resistance, as well as its chemical resistance, while also enhancing the adhesive strength and mechanical properties of the skin layer, providing strong protection for the flooring's operating environment and durability. The core material is a new type of composite material made from resin and reinforcing fibers processed using a special technique. The floorboards are laid on the vehicle body using an overlapping, stepped joint secured with screws, making installation convenient and quick.

[0003] However, composite flooring is basically laid flat. In practice, in the design of the body structure of some subway or trolleybus trains, such as the driver's cab, the undercarriage structure may be changed due to the presence of a certain functional component of the train set, resulting in a slope in the interior floor of that local area. As a result, the horizontal overlap of the floor cannot be achieved normally. Therefore, it is necessary to design a sloped floor with its slope adhering to the undercarriage and being firm and reliable to ensure the safety of train operation.

[0004] A search revealed CN116619851A, which discloses a composite floor for rail passenger vehicles, its preparation method, and a rail passenger vehicle. The composite floor sequentially comprises a first carbon fiber composite plate, a reinforcing plate, a second carbon fiber composite plate, and a plastic plate. The first and second carbon fiber composite plates are independently made of modified carbon fiber reinforced thermoplastic resin materials. The surface of the modified carbon fibers contains polar groups. The prepared composite floor exhibits excellent mechanical strength, noise reduction, and vibration damping effects, and its simple structural design and low cost meet the requirements for lightweight vehicle bodies.

[0005] However, this structure is only suitable for this type of sloping floor and cannot be adjusted according to different vehicle models, thus lacking applicability.

[0006] Therefore, a composite floor was invented that can be normally installed and connected with other flat composite floors, and can also solve the need for sloping floors. Furthermore, the design of the bottom of the car body is not limited to horizontal flooring, which is of great significance for improving the design space of the train body structure. Utility Model Content

[0007] This utility model addresses the shortcomings of existing technologies by providing a sloping composite floor. The floor structure is "horizontal-sloping-horizontal," comprising horizontal and sloping sections connected as a whole using adhesive bonding. The ends of the horizontal sections have overlapping steps, allowing for conventional overlapping assembly with other composite flooring. Epoxy board is used to reinforce the connection between the horizontal and sloping sections, replacing the core material. The horizontal and sloping sections are fixed with pins and bonded together with adhesive. The slope is designed according to the actual laying angle to meet the needs of sloping train flooring installation. It can also be normally installed and connected with other flat composite flooring, with strong adhesion and pin fixation to improve connection stability.

[0008] The above-mentioned objectives of this utility model are achieved through the following technical solutions:

[0009] A sloped composite flooring is disclosed, employing a "sandwich" structure—outer skin + core material + outer skin, the three being bonded together as one unit. It includes a sloped section and horizontal sections installed on both sides of the sloped section. The sloped section has overlapping surfaces on both sides that connect with the horizontal sections, with the overlapping surfaces on both sides staggered to ensure the slope of the sloped section matches the required slope of the flooring. One end of each horizontal section is fixedly connected to the overlapping surface of the sloped section; the other end has an overlapping step for overlapping and assembling with other composite flooring.

[0010] Furthermore, the inclined section includes a core material at the center and epoxy boards connected to both sides of the core material; the core material is a rectangular structure, and the epoxy board is a trapezoid, triangle, or wedge shape.

[0011] Furthermore, the horizontal segment includes a second core material and a second epoxy board, wherein the second epoxy board overlaps and is bonded to the first epoxy board.

[0012] Furthermore, the epoxy board is one of trapezoidal, triangular, or wedge-shaped.

[0013] Furthermore, the overlapping step is a stepped groove recessed into the surface.

[0014] Furthermore, the horizontal segment and the inclined segment are connected by using pins for positioning and fixing, and adhesive bonding.

[0015] Furthermore, the inclined section is a parallelogram enclosed by the core material and the epoxy board.

[0016] Furthermore, the inclined section and the horizontal section have the same width, and the inclination of epoxy board one is the same as that of epoxy board two.

[0017] Furthermore, at the contact surface between the inclined section and the horizontal section, the horizontal section is provided with a concave step surface so that the joint between the inclined section and the horizontal section fits neatly together.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] This utility model of sloping composite flooring consists of multiple sections combined into a whole floor. The slope can be designed according to the actual laying angle to meet the needs of sloping flooring for trains.

[0020] The sloped composite floor of this invention has overlapping steps at the ends of the horizontal sections, allowing the two ends of the composite floor to be normally installed and connected with other flat composite flooring.

[0021] In this utility model of sloping composite flooring, epoxy board is used to replace the core material for reinforcement at the connection between the horizontal section and the sloping section. Preferably, the epoxy board extends 30-50mm into the skin layer to form a "skin + epoxy board + skin" structure, which ensures the support strength and structural stability of the sloping connection. The adhesive joint is firmly bonded and fixed with pins to improve the stability of the connection.

[0022] This utility model of sloped composite flooring solves the problem that composite flooring can only be laid on a flat surface, thus improving the practicality of composite flooring. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the sloping composite floor described in this utility model.

[0025] Figure 2 This is a schematic diagram of the assembly structure of the sloping composite floor described in this utility model.

[0026] Among them, 1. First horizontal section, 2. Inclined section, 21. Joint surface, 3. Second horizontal section, 4. Overlapping step; 5. Skin, 6. Core material one, 6'. Core material two, 7. Epoxy board one, 7'-Epoxy board two. Detailed Implementation

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims. Example 1

[0028] like Figures 1-2As shown, the sloped composite floor in this embodiment adopts a "sandwich" structure - skin + core material + skin, which are bonded together as one unit. It includes a sloped section 2 and horizontal sections installed on both sides of the sloped section 2. The horizontal sections and the sloped section 2 are fixed by pin positioning and connected by adhesive bonding.

[0029] Specifically, the inclined section 2 has joint surfaces 21 on both sides that overlap with the horizontal section. The joint surfaces 21 on both sides are staggered to make the slope of the inclined section 2 consistent with the slope required by the floor. One end of the horizontal section is fixedly connected to the joint surface 21 of the inclined section 2. The other end is provided with an overlapping step 4 for overlapping and assembling with other composite flooring.

[0030] In this embodiment, the inclined section 2 includes a core material 6 disposed at the center and epoxy boards 7 connected to both sides of the core material 6; the inclined section 2 is a parallelogram enclosed by the core material 6 and the epoxy boards 7.

[0031] The core material 6 has a rectangular structure, and the epoxy board 7 is a trapezoid, triangle, or wedge shape; preferably, it is a right trapezoidal structure, with the hypotenuse of the right trapezoidal structure abutting one side of the horizontal section.

[0032] The horizontal section includes two sections, namely the first horizontal section 1 and the second horizontal section 3. The horizontal section includes core material 6' and epoxy board 7', and epoxy board 7' overlaps and is bonded to epoxy board 7.

[0033] The epoxy board 7' is trapezoidal, triangular, or wedge-shaped; preferably, it is a right-angled trapezoidal structure, with the base of the right-angled trapezoidal structure abutting the joint surface 21 of the inclined section 2; the straight edge section abutting the core material 6'. The end of the core material 6' away from the epoxy board 7' is provided with an overlapping step 4, which is a stepped groove recessed into the surface.

[0034] The sloping section 2 has the same width as the horizontal section, and the inclination of epoxy board 7' is the same as that of epoxy board 7'. At the contact surface between the sloping section 2 and the horizontal section, the horizontal section has a concave step surface to ensure a neat and proper fit between the sloping section 2 and the horizontal section.

[0035] The sloping composite floor structure in this embodiment is "horizontal-sloping-horizontal," comprising a first horizontal section 1, a sloping section 2, and a second horizontal section 3. These three sections are combined and connected as a whole using adhesive bonding. The first horizontal section 1 and the second horizontal section 3 each have overlapping steps, allowing for conventional overlapping assembly with other composite flooring. Epoxy boards are used to reinforce the connections between the first horizontal section 1 and the sloping section 2, and between the second horizontal section 3 and the sloping section 2. The horizontal sections and sloping sections are fixed using pins and then bonded together with adhesive. The three sections combine to form a complete floor. The slope is designed according to the actual laying angle to meet the needs of sloping train flooring installation. It can also be normally installed and connected with other flat composite flooring, with strong adhesion at the bonding points and pins for fixation, improving connection stability.

[0036] The construction of the first horizontal section: On one side, the overlapping steps are processed, and on the other side, the slope of the floor is removed from the reverse side of the floor to form a slope. A small step with a depth of 1mm is processed on the front side of the floor (the width is determined according to the actual design requirements and the slope).

[0037] Production of the sloping section: one side is machined into a sloping surface with the corresponding slope on the reverse side, and the other side is machined into a sloping surface on the front side. The tips on both sides are blunted by 1mm.

[0038] The second horizontal section is constructed as follows: one side is processed with overlapping steps, and the other side is processed into a slope by removing the surface of the floor according to the required slope. A small step with a depth of 1mm is also processed on the reverse side of the floor.

[0039] Finished Product Assembly: Align the beveled surface of the sloped section with the 1mm deep step of the first horizontal section, securing them with clamps. Then, drill 3-6 pin holes (5-8mm in diameter) according to the floor length. Clean the mating surfaces as required, apply an appropriate amount of epoxy adhesive, and bond them together. Insert pre-prepared aluminum or epoxy cylindrical conical pins into the pin holes (which also contain adhesive). Finally, apply the specified pressure to the bonding surfaces and allow the adhesive to cure. After curing, proceed with edge sealing, cleaning, and assembly to obtain the finished sloped composite flooring.

[0040] The connection between the second horizontal segment and the other side of the inclined segment is performed according to the steps described above.

[0041] In this sloping composite floor, at the connection between the horizontal section and the sloping section, epoxy board is used to replace the core material for reinforcement. Preferably, the epoxy board extends 30-50mm into the skin layer to form a "skin + epoxy board + skin" structure, which ensures the support strength and structural stability of the sloping connection. The adhesive joint is firmly bonded and fixed with pins to improve the stability of the connection.

[0042] This sloped composite flooring overcomes the limitation of composite flooring being only suitable for flat installation, thus improving its practicality.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations can be made to the present utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of the present utility model.

Claims

1. A type of sloping composite flooring, employing a "sandwich" structure—outer layer + core material + outer layer, the three components being bonded together as a single unit, characterized in that... It includes a sloping section (2) and horizontal sections installed on both sides of the sloping section (2). The sloping section (2) has joint surfaces (21) that overlap with the horizontal sections on both sides. The joint surfaces (21) on both sides are staggered to make the slope of the sloping section (2) consistent with the slope required by the floor. One end of the horizontal section is fixedly connected to the joint surface (21) of the sloping section (2). The other end is provided with an overlapping step (4) for overlapping and assembling with other composite flooring.

2. The sloping composite flooring according to claim 1, characterized in that, The inclined section (2) includes a core material (6) located at the center and epoxy boards (7) connected to both sides of the core material (6); the core material (6) is a rectangular structure and the epoxy board (7) is a trapezoid, triangle or wedge shape.

3. The sloping composite flooring according to claim 2, characterized in that, The horizontal section includes core material two (6') and epoxy board two (7'), and the epoxy board two (7') overlaps and is bonded to epoxy board one (7).

4. The sloping composite flooring according to claim 3, characterized in that, The epoxy board 2 (7') is one of trapezoidal, triangular or wedge-shaped.

5. The sloping composite flooring according to claim 4, characterized in that, The overlapping step (4) is a stepped groove recessed into the surface.

6. The sloping composite flooring according to any one of claims 2-5, characterized in that, The horizontal section and the inclined section (2) are connected by using pins for positioning and fixing, and adhesive bonding.

7. The sloping composite flooring according to claim 6, characterized in that, The inclined section (2) is a parallelogram enclosed by the core material (6) and the epoxy board (7).

8. The sloping composite flooring according to claim 7, characterized in that, The inclined section (2) has the same width as the horizontal section, and the inclination of epoxy board one (7) is the same as that of epoxy board two (7').

9. The sloping composite flooring according to claim 8, characterized in that, At the contact surface between the inclined section (2) and the horizontal section, the horizontal section is provided with a concave step surface so that the joint between the inclined section (2) and the horizontal section fits neatly together.

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