A vehicle floor structure
By using a floor structure that combines rigid metal profile support frames with foam material interlayers and buffer components, the problems of heavy vehicle floor weight and loud vibration noise were solved, achieving lightweighting and shock absorption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 厦门宝益科技有限公司
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-14
AI Technical Summary
The existing vehicle's cargo floor is made of steel structure and steel plate, which results in heavy weight, difficulty in processing, and loud vibration and noise during operation.
The floor structure consists of a base plate made of rigid metal profiles with a support frame, a rigid metal frame and a foam material interlayer, with internal cushioning components such as rubber pads and protective shells, and is fixed together by countersunk bolts to form a lightweight and shock-absorbing floor structure.
The resulting lightweight, easy-to-manufacture and easy-to-install carriage floor reduces operating energy consumption and vibration noise.
Smart Images

Figure CN224491044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle structure, and in particular to a vehicle compartment floor structure. Background Technology
[0002] The car floors of high-speed trains, light rail, and subway vehicles are mainly composed of steel structures and steel plates. These materials are heavy and difficult to process, resulting in heavy car bodies and high energy consumption during vehicle operation. Moreover, the vibration and noise are relatively loud during vehicle operation. Summary of the Invention
[0003] In view of this, it is necessary to provide a carriage floor structure that is simple in structure, easy to manufacture, and lightweight.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a carriage floor structure, comprising:
[0005] A support frame, wherein the support frame is constructed of rigid metal profiles;
[0006] The base plate includes a frame made of rigid metal and a sandwich layer formed of foam material within the frame;
[0007] A buffer element is disposed between the frame and the support frame.
[0008] Furthermore, the cushioning element includes a rubber pad.
[0009] Furthermore, the buffer also includes a protective shell, the rubber pad is embedded in the protective shell, the top surface of the rubber pad is in contact with the bottom surface of the frame, and the bottom surface of the rubber pad is in contact with the top surface of the support frame.
[0010] Furthermore, the protective shell is fixedly connected to the bottom surface of the frame.
[0011] Furthermore, the top and bottom surfaces of the interlayer are both fixedly connected to panels, and the surface of the panels is flush with the surface of the frame.
[0012] Furthermore, there are multiple base plates, which are arranged in a row and flush on the support frame, and the adjacent side walls of adjacent base plates have interlocking steps.
[0013] Furthermore, both the base plate and the steps have mounting holes, and each mounting hole has a buffer component at its bottom. The base plate and the buffer component are fixedly connected to the support frame by passing countersunk bolts through the mounting holes and the buffer components in sequence.
[0014] Furthermore, a sealing gasket is provided between the adjacent sidewalls of the two adjacent base plates.
[0015] Furthermore, the floor is a double-layer floor, that is, it has two layers of the base plate in the vertical direction.
[0016] Furthermore, a shock-absorbing layer is provided between the two base plates.
[0017] Compared with the prior art, the present invention has the following advantages: the device can quickly prepare a simple, lightweight, and easy-to-install carriage floor structure through a prefabricated base plate structure.
[0018] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0019] Figure 1 This is a perspective view of Embodiment 1 of the present utility model.
[0020] Figure 2 This is a schematic diagram of the support frame in Embodiment 1 of this utility model.
[0021] Figure 3 This is a front structural diagram of the two adjacent base plates in Embodiment 1 of this utility model.
[0022] Figure 4 This is a schematic diagram of the back structure between two adjacent base plates in Embodiment 1 of this utility model.
[0023] Figure 5 This is a schematic diagram of the assembly structure of two adjacent base plates in Embodiment 1 of this utility model.
[0024] Figure 6 This is a structural schematic diagram of Embodiment 2 of the present invention.
[0025] In the diagram: 1-support frame, 2-base plate, 21-frame, 22-mezzanine, 23-panel, 24-step, 25-mounting hole, 26-sealing gasket, 27-shock-absorbing layer, 3-buffer, 31-rubber pad, 32-protective shell. Detailed Implementation
[0026] To further illustrate the technical means and effects of this utility model in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model, in conjunction with the accompanying drawings and preferred embodiments, is provided below.
[0027] Example 1
[0028] like Figure 1-5 As shown, a single-layer carriage floor structure includes: a support frame 1, a base plate 2, and a buffer component 3.
[0029] The support frame 1 is made of stainless steel profiles.
[0030] The base plate 2 includes a frame 21 made of aluminum alloy profiles and a sandwich layer 22 formed of PPO within the frame. Panels 23 are bonded to both the top and bottom surfaces of the sandwich layer 22, and the surface of the panels 23 is flush with the surface of the frame 21. In this embodiment, the panels 23 are phenolic boards.
[0031] The buffer 3 is disposed between the frame 21 and the support frame 1. The buffer 3 includes a rubber pad 31 and a stainless steel protective shell 32. The rubber pad 31 is embedded in the protective shell 32. The top surface of the rubber pad 31 is in contact with the bottom surface of the frame 21, and the bottom surface of the rubber pad 31 is in contact with the top surface of the support frame 1.
[0032] The protective shell 32 has fixing holes at both ends, and the protective shell 32 is fixedly connected to the bottom surface of the frame 21 by screws.
[0033] The base plates 2 consist of multiple pieces, which are arranged flush on the support frame. Adjacent base plates have interlocking steps 24 on their adjacent side walls, and a sealing gasket 26 is provided between the adjacent side walls of two adjacent base plates to prevent dust and other debris from entering the gaps between adjacent base plates.
[0034] Both the base plate and the steps have mounting holes 25, and each mounting hole 25 has a buffer 3 at the bottom. The base plate and the buffer are fixedly connected to the support frame by passing countersunk bolts through the mounting holes and the buffer in sequence.
[0035] Example 2, as Figure 6 As shown, a double-layer carriage floor structure is generally the same as that in Embodiment 1, except that the bottom plate has two layers in the vertical direction, that is, the carriage floor is a double-layer floor.
[0036] In this embodiment, a shock-absorbing layer 27 is provided between the two bottom plates.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A carriage floor structure, characterized in that, include: A support frame, wherein the support frame is constructed of rigid metal profiles; The base plate includes a frame made of rigid metal and a sandwich layer formed of foam material within the frame; A buffer element is disposed between the frame and the support frame.
2. The carriage floor structure according to claim 1, characterized in that: The cushioning element includes a rubber pad.
3. The carriage floor structure according to claim 2, characterized in that: The buffer also includes a protective shell, in which the rubber pad is embedded. The top surface of the rubber pad contacts the bottom surface of the frame, and the bottom surface of the rubber pad contacts the top surface of the support frame.
4. The carriage floor structure according to claim 3, characterized in that: The protective shell is fixedly connected to the bottom surface of the frame.
5. A carriage floor structure according to claim 1, characterized in that: Panels are fixedly connected to the top and bottom surfaces of the interlayer, and the surface of the panels is flush with the surface of the frame.
6. A carriage floor structure according to claim 4, characterized in that: The base plates consist of multiple pieces, which are arranged in a row and flush on the support frame. The adjacent side walls of adjacent base plates have interlocking steps.
7. A carriage floor structure according to claim 6, characterized in that: Both the base plate and the steps have mounting holes, and each mounting hole has a buffer component at its bottom. The base plate and the buffer component are fixedly connected to the support frame by passing countersunk bolts through the mounting holes and the buffer components in sequence.
8. A carriage floor structure according to claim 6, characterized in that: A sealing gasket is provided between the adjacent sidewalls of the two adjacent base plates.
9. A carriage floor structure according to claim 1, characterized in that: The floor is a double-layer floor, that is, it has two layers of the base plate in the vertical direction.
10. A carriage floor structure according to claim 9, characterized in that: A shock-absorbing layer is provided between the two base plates.