Lightweight composite board for railway vehicle

Abstract

The utility model relates to the technical field of composite boards, and discloses a lightweight composite board for railway vehicles, which comprises a board component, a buffer component and a mounting component, the buffer component and the mounting component are mounted on the board component, and a fastening component is mounted between the buffer component and the mounting component. The buffer plate in the composite plate is fixedly mounted on the reinforcing layer through the first fixing screws, impact stress is conducted to the buffer plate through the fixing plate sleeve when the composite plate is collided by an external object, and an effective buffer effect is achieved through the buffer groove formed in the buffer plate; reinforcing ribs fixedly installed between the buffering plate and the reinforcing layer can reduce the weight and guarantee the strength of the buffering plate and the reinforcing layer, and before the composite plate is installed, a second fixing screw can be rotated to enable a fixing nut to move in the direction close to the second fixing screw under the action of thread meshing; and then the pressing plate is extruded, so that all parts in the plate assembly and the buffer plate are tightly attached to each other, and the problem that the plate falls off due to the fact that the adhesion layer loses efficacy after long-time use is solved.

Description

Technical Field

[0001] This utility model relates to the field of composite material technology, and more specifically to a lightweight composite material for rail vehicles. Background Technology

[0002] The rapid development of modern industry has placed higher demands on the performance of materials. The automotive manufacturing industry needs to use materials with high strength, light weight, high temperature resistance, and corrosion resistance. The emergence and development of composite panels have met the special material needs of these fields and promoted the progress of related industries.

[0003] However, existing composite panels have the problem of relatively large weight when used in the field of rail vehicles. This not only increases the energy consumption of the vehicle during operation and reduces its operating efficiency, but also puts greater pressure on the chassis, suspension and other components of the vehicle, affecting the overall performance and service life of the vehicle. In terms of collision protection performance, existing composite panels also have obvious deficiencies and cannot provide sufficient safety protection for the vehicle and its occupants.

[0004] In addition, after long-term use, the adhesive layer of the composite board may fail. Once the adhesive layer fails, the connection between the various components of the composite board will become loose, which will lead to the board falling off. The falling off of the board will not only affect the appearance integrity of the rail vehicle, but may also pose a safety hazard to the normal operation of the vehicle.

[0005] To address the aforementioned issues, this application provides a lightweight composite sheet material for rail vehicles. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lightweight composite sheet for rail vehicles to solve the problems existing in the background art.

[0007] This utility model provides the following technical solution: a lightweight composite plate for rail vehicles, comprising a plate assembly and a buffer assembly and an installation assembly mounted on the plate assembly, wherein a fastening assembly is installed between the buffer assembly and the installation assembly;

[0008] Preferably, the board assembly includes a sound insulation layer, a waterproof layer, a reinforcing layer, and an adhesive layer. The sound insulation layer is fixedly provided with a waterproof layer on its front side, and an adhesive layer is fixedly adhered between the waterproof layer and the sound insulation layer. The reinforcing layer is provided on its front side of the waterproof layer, and an adhesive layer is fixedly adhered between the waterproof layer and the reinforcing layer. In this case, the sound insulation layer, waterproof layer, and reinforcing layer, which are bonded together by the adhesive layer, can effectively achieve the effect of sound insulation and waterproofing.

[0009] Preferably, the buffer assembly includes a buffer plate, reinforcing ribs, a first fixing screw, a first washer, and buffer grooves. The buffer plate is three millimeters thick and is fixedly installed on the front side of the reinforcement layer. The buffer plate has buffer grooves arranged in an array, and the transverse cross-section of the buffer grooves is trapezoidal. The reinforcing ribs are disposed in the buffer grooves on the buffer plate, with one end fixedly connected to the buffer plate and the other end tightly fitted to the reinforcement layer. The first fixing screws are disposed on both sides of the connection between the buffer plate and the reinforcing ribs. The first washer is movably sleeved on the first fixing screw, and the threaded end of the first fixing screw movably passes through the buffer plate and is threaded into the reinforcement layer. At this time, the buffer plate is fixedly installed on the reinforcement layer by the first fixing screw, playing a buffering and protective role. The reinforcing ribs fixedly installed between the buffer plate and the reinforcement layer can ensure its strength.

[0010] Preferably, the installation assembly includes a fixing plate sleeve, a mounting post, and a fixing groove. The fixing plate sleeve securely covers the outer side of the mounting plate assembly and the buffer assembly, and is fixedly installed on the right side of the fixing plate sleeve. The mounting post is fixedly installed on the left side of the fixing plate sleeve. The mounting post has a fixing groove, which allows the mounting post to slide and engage with a connecting block. In this case, the connecting block of one plate can be engaged with the fixing groove on the mounting post of another plate.

[0011] Preferably, the fastening assembly includes a second fixing screw, a second washer, a pressure plate, a third washer, a fixing nut, and a waterproof cover. The pressure plate is disposed on the front side wall where the buffer plate and the reinforcing layer are in close contact. The plate assembly has a through hole at the connection with the second fixing screw, allowing the threaded end of the second fixing screw to movably pass through the plate assembly. After the threaded end of the second fixing screw movably passes through the plate assembly and the second fixing screw, it is threadedly fitted with the fixing nut. The third washer is disposed between the second fixing screw and the fixing nut and movably fitted with the second fixing screw. The second washer is disposed between the nut end of the second fixing screw and the fixing plate sleeve and movably fitted with the second fixing screw. The waterproof cover is disposed on the rear side of the second fixing screw and fixedly installed on the side wall of the fixing plate sleeve. At this time, by rotating the second fixing screw, the fixing nut can be moved closer to the second fixing screw under the action of thread engagement, thereby squeezing the pressure plate to make the various components in the plate assembly and the buffer plate fit together tightly.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] The buffer plate in the composite board is fixedly installed on the reinforcing layer by the first fixing screw. When it is hit by an external object, the impact force is transmitted to the buffer plate through the fixing plate sleeve. The buffer groove opened on the buffer plate plays an effective buffering role. The reinforcing rib fixed between the buffer plate and the reinforcing layer can reduce weight while ensuring strength. Before installing the composite board, the fixing nut can be moved closer to the second fixing screw by rotating the second fixing screw. This will squeeze the pressure plate and make the various components in the board assembly and the buffer plate fit together tightly, avoiding the problem of the board falling off due to the failure of the adhesive layer after long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a partial cross-sectional view of the overall structure of this utility model.

[0016] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0017] Figure 4 For the present utility model Figure 2 Schematic diagram of the structure at point B.

[0018] The attached figures are labeled as follows: 1. Panel assembly; 101. Sound insulation layer; 102. Waterproof layer; 103. Reinforcing layer; 104. Adhesive layer; 2. Buffer assembly; 201. Buffer plate; 202. Reinforcing rib; 203. First fixing screw; 204. First washer; 205. Buffer groove; 3. Mounting assembly; 301. Fixing plate sleeve; 302. Connecting block; 303. Mounting column; 304. Fixing groove; 4. Fastening assembly; 401. Second fixing screw; 402. Second washer; 403. Pressure plate; 404. Third washer; 405. Fixing nut; 406. Waterproof cover. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The lightweight composite sheet for rail vehicles involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Reference Figure 1 and Figure 2This utility model provides a lightweight composite sheet for rail vehicles, including a sheet assembly 1 and a buffer assembly 2 and a mounting assembly 3 installed on the sheet assembly 1, with a fastening assembly 4 installed between the buffer assembly 2 and the mounting assembly 3.

[0021] Reference Figure 2 The board assembly 1 includes a sound insulation layer 101, a waterproof layer 102, a reinforcing layer 103, and an adhesive layer 104. The sound insulation layer 101 is fixedly provided with the waterproof layer 102 on the front side, and the adhesive layer 104 is fixedly adhered between the waterproof layer 102 and the sound insulation layer 101. The reinforcing layer 103 is provided on the front side of the waterproof layer 102, and the adhesive layer 104 is fixedly adhered between the waterproof layer 102 and the reinforcing layer 103. At this time, the sound insulation layer 101, the waterproof layer 102, and the reinforcing layer 103, which are bonded together by the adhesive layer 104, can effectively achieve the effect of sound insulation and waterproofing.

[0022] Reference Figure 2 and Figure 3 The buffer assembly 2 includes a buffer plate 201, a reinforcing rib 202, a first fixing screw 203, a first washer 204, and a buffer groove 205. The buffer plate 201 is three millimeters thick and is fixedly installed on the front side of the reinforcement layer 103. The buffer plate 201 has buffer grooves 205 arranged in an array on it. The transverse cross-section of the buffer grooves 205 is trapezoidal. The reinforcing rib 202 is disposed in the buffer grooves 205 on the buffer plate 201, and one end of the reinforcing rib is fixedly connected to the buffer plate 201, while the other end is tightly fitted to the reinforcement layer 103. The first fixing screw 203 is located on both sides of the connection between the buffer plate 201 and the reinforcing rib 202 in the solid layer 103. The first washer 204 is movably sleeved on the first fixing screw 203. The threaded end of the first fixing screw 203 moves through the buffer plate 201 and then the threaded end is engaged with the reinforcing layer 103. At this time, the buffer plate 201 is fixedly installed on the reinforcing layer 103 by the first fixing screw 203, which plays the role of buffer protection. The reinforcing rib 202 fixedly installed between the buffer plate 201 and the reinforcing layer 103 can ensure its strength.

[0023] Reference Figure 1 and Figure 2 The mounting assembly 3 includes a fixing plate sleeve 301, a mounting post 303, and a fixing groove 304. The fixing plate sleeve 301 is fixedly installed on the outside of the mounting plate assembly 1 and the buffer assembly 2, which are wrapped inside it. The fixing plate sleeve 301 is fixedly installed on the right side of the fixing plate sleeve 301, and the mounting post 303 is fixedly installed on the left side of the fixing plate sleeve 301. The mounting post 303 has a fixing groove 304, which allows the mounting post 303 to slide and engage with the connecting block 302 through the fixing groove 304. At this time, the connecting block 302 of one plate can be engaged into the fixing groove 304 on the mounting post 303 of another plate.

[0024] Reference Figure 2 and Figure 4 The fastening assembly 4 includes a second fixing screw 401, a second washer 402, a pressure plate 403, a third washer 404, a fixing nut 405, and a waterproof cover 406. The pressure plate 403 is located on the front sidewall where the buffer plate 201 and the reinforcing layer 103 are in close contact. The threaded end of the second fixing screw 401 movably passes through the plate assembly 1 and the fixing nut 405. The third washer 404 is located between the second fixing screw 401 and the fixing nut 405 and movably sleeves the second fixing screw 402. 1. The second washer 402 is disposed between the nut end of the second fixing screw 401 and the fixing plate sleeve 301 and is movably sleeved with the second fixing screw 401. The waterproof cover 406 is disposed on the rear side of the second fixing screw 401 and is fixedly installed on the side wall of the fixing plate sleeve 301. At this time, the fixing nut 405 can be moved closer to the second fixing screw 401 under the action of thread engagement by rotating the second fixing screw 401, thereby squeezing the pressure plate 403 so that the various components in the plate assembly 1 and the buffer plate 201 are tightly fitted together.

[0025] The working principle of this utility model is as follows: When using this composite board, it is installed on a rail vehicle. When a single board is small, the connecting block 302 of one board is snapped into the fixing groove 304 opened on the mounting column 303 of another board for positioning and assembly. At the same time, the buffer plate 201 is fixedly installed on the reinforcing layer 103 by the first fixing screw 203. When it is hit by an external object, the impact force is transmitted to the buffer plate 201 through the fixing plate sleeve 301. The buffer groove 205 opened on the buffer plate 201 plays an effective buffering role. The reinforcing rib 202 between the buffer plate 201 and the reinforcing layer 103 can ensure its strength. If damage occurs after long-term use, the buffer plate 201 and the reinforcing rib 202 fixed on the buffer plate 201 can be replaced by rotating the first fixing screw 203. Before installing the composite plate, the fixing nut 405 can be moved closer to the second fixing screw 401 by rotating the second fixing screw 401 under the action of thread engagement, thereby squeezing the pressure plate 403 so that the various components in the plate assembly 1 and the buffer plate 201 are tightly fitted together to ensure its strength.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight composite sheet for rail vehicles, comprising a sheet assembly (1) and a buffer assembly (2) and a mounting assembly (3) mounted on the sheet assembly (1), characterized in that: A fastening assembly (4) is installed between the buffer assembly (2) and the mounting assembly (3). The plate assembly (1) includes a reinforcing layer (103). The buffer assembly (2) includes a buffer plate (201), a reinforcing rib (202), a first fixing screw (203), a first washer (204), and a buffer groove (205). The buffer plate (201) is three millimeters thick. The buffer plate (201) is fixedly installed on the front side of the reinforcing layer (103). The buffer plate (201) has buffer grooves (205) arranged in an array. The transverse cross section of 205 is trapezoidal. The reinforcing rib (202) is set in the buffer groove (205) opened on the buffer plate (201), and one end of it is fixedly connected to the buffer plate (201), and the other end is tightly attached to the reinforcing layer (103). The first fixing screw (203) is set on both sides of the connection between the buffer plate (201) and the reinforcing rib (202). The first gasket (204) is movably sleeved on the first fixing screw (203). The threaded end of the first fixing screw (203) moves through the buffer plate (201) and then the threaded end is threaded into the reinforcing layer (103).

2. The light-weight composite panel for a rail vehicle according to claim 1, characterized in that: The panel assembly (1) further includes a sound insulation layer (101), a waterproof layer (102) and an adhesive layer (104), wherein the sound insulation layer (101) is fixed with a waterproof layer (102) on its front side, and an adhesive layer (104) is fixedly pasted between the waterproof layer (102) and the sound insulation layer (101).

3. The light-weight composite panel for a rail vehicle according to claim 1, characterized in that: The mounting assembly (3) includes a fixing plate sleeve (301), a mounting post (303), and a fixing groove (304). The fixing plate sleeve (301) is used to fix the outer side of the mounting plate assembly (1) and the buffer assembly (2) and wrap them inside. The fixing plate sleeve (301) is fixedly installed on the right side of the fixing plate sleeve (301), and the mounting post (303) is fixedly installed on the left side of the fixing plate sleeve (301). The mounting post (303) has a fixing groove (304) on it, and the mounting post (303) can slide and engage the connecting block (302) through the fixing groove (304).

4. The light-weight composite panel for a rail vehicle according to claim 1, characterized in that: The fastening assembly (4) includes a second fixing screw (401), a second washer (402), a pressure plate (403), a third washer (404), a fixing nut (405), and a waterproof cover (406). The pressure plate (403) is disposed on the front side wall where the buffer plate (201) and the reinforcing layer (103) are in close contact. The threaded end of the second fixing screw (401) passes through the plate assembly (1) and the second fixing screw (401) and is threaded onto the fixing nut (405). The third washer (404) is disposed between the second fixing screw (401) and the fixing nut (405) and is movably sleeved onto the second fixing screw (401). The second washer (402) is disposed between the nut end of the second fixing screw (401) and the fixing plate sleeve (301) and is movably sleeved onto the second fixing screw (401). The waterproof cover (406) is disposed on the rear side of the second fixing screw (401) and is fixedly installed on the side wall of the fixing plate sleeve (301).

5. The light-weight composite panel for a rail vehicle according to claim 4, characterized in that: The plate assembly (1) has a through hole at the connection with the second fixing screw (401), so that the threaded end of the second fixing screw (401) can move through the plate assembly (1).

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