Lightweight vibration and noise reduction railway passenger car seat anti-pulling device

Abstract

The utility model relates to the technical field of railway passenger cars, in particular to a lightweight vibration and noise reduction railway passenger car seat anti-pulling device which comprises a base and an installation seat, an installation plate is welded to the outer wall of the installation seat, a bolt is installed on the top of the inner wall of the installation seat in a penetrating and threaded mode, and a nut is installed on the outer wall of the bolt in a threaded mode. Vulcanized rubber is glued to the inner wall and the outer wall of the base, and polyurethane foam is glued to the top of the base. According to the improved seat anti-pulling device, vulcanized rubber and polyurethane foam are adopted, when the seat anti-pulling device is used, direct collision between metal parts of the seat anti-pulling device can be prevented, generation and transmission of noise are reduced, and the comfort of passengers taking a railway vehicle is improved; by adopting the mounting seat, the bolt and the nut, the bolt and the nut connected with the anti-pulling metal part of the seat can be prevented from loosening when the anti-pulling metal part of the seat is mounted, and the stability of the anti-pulling metal part of the seat is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail passenger vehicles, in particular to a lightweight, vibration-damping and noise-reducing anti-pullout device for a rail passenger vehicle seat. Background Art

[0002] As the rail passenger car industry places increasingly higher demands on vibration and noise reduction for the entire vehicle, all related products are required to improve their vibration and noise reduction functions. The vibration and friction noise between the wheels and the rails will be transmitted to the interior of the passenger compartment through the wheels, the bottom frame of the vehicle body, the elastic support of the floor, the seat anti-pullout system, etc., affecting the riding comfort. In particular, the higher the speed, the greater the noise. The seat anti-pullout system used in existing trains has great shortcomings. Vibration and abnormal noise will occur during the operation of the vehicle, seriously affecting the riding comfort of passengers. Therefore, a lightweight rail passenger car seat anti-pullout system with vibration and noise reduction is needed.

[0003] In the process of realizing the present invention, the inventors found that the prior art had the following problems: 1. When some of the existing ordinary seat anti-pullout devices are in use, the vibration generated during the operation of the vehicle will cause collisions between the metal parts of the seat anti-pullout devices, and noise will be generated during the collision. The noise produced will affect the riding comfort of the passengers; 2. When some of the existing ordinary seat anti-pullout devices are installed, ordinary screws and nuts are generally used to connect and fix the metal parts of the seat anti-pullout devices. When the seat anti-pullout devices are used for a long time, the vibration generated during the operation of the vehicle will cause the screws and nuts to loosen, affecting the stability of the seat anti-pullout devices during use. Utility Model Content

[0004] The purpose of the present invention is to provide a lightweight, vibration-damping, and noise-reducing anti-pullout device for railway passenger seats, so as to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solution: a lightweight, vibration-damping, and noise-reducing anti-pullout device for railway passenger seats, comprising a base and a mounting seat, wherein a mounting plate is welded to the outer wall of the mounting seat, a bolt is threadedly installed through the top of the inner wall of the mounting seat, a nut is threadedly installed on the outer wall of the bolt, vulcanized rubber is glued to the inner and outer walls of the base, polyurethane foam is glued to the top of the base, and reinforcing ribs are provided on both sides of the base.

[0005] Further preferably, the base is composed of a bottom plate, a U-shaped plate and reinforcing ribs, and is integrally processed from an aluminum profile, and the material of the aluminum profile is 6061-T6 material.

[0006] Further preferably, a circular hole is opened in the middle of the top of the U-shaped plate of the base, and vulcanized rubber is glued into the circular hole, and the top of the U-shaped plate and the top of the inner wall of the base are both glued with vulcanized rubber.

[0007] Further preferably, an annular groove is provided on the top of the U-shaped plate of the base, and the polyurethane foam is glued into the annular groove.

[0008] Further preferably, an elliptical hole is opened on the top of the mounting plate, and the elliptical holes are symmetrically distributed about the vertical center line of the mounting plate, and the mounting seat and the mounting plate are made of Q345D steel plate.

[0009] Further preferably, a hexagonal groove is provided on the top of the bolt, grooves are provided on both sides of the bottom outer wall of the mounting seat, and a groove whose internal dimension structure is consistent with the external dimension structure of the mounting seat is provided on the top of the nut.

[0010] Further preferably, the bottom of the inner wall of the hexagonal groove at the top of the nut is glued with vulcanized rubber.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the utility model, by using vulcanized rubber and polyurethane foam, when the seat anti-pull is used, the polyurethane foam in the annular groove at the top of the U-shaped plate of the base cooperates with the vulcanized rubber on the inner wall of the circular hole at the top of the U-shaped plate of the base, and the vulcanized rubber on the top and top of the inner wall of the U-shaped plate, which can prevent direct collision between the metal parts of the seat anti-pull, reduce the generation and spread of noise, and improve the riding comfort of passengers.

[0013] In the present invention, through the mounting base, bolts and nuts, when installing the seat to prevent it from being pulled out, the mounting base is passed through the circular hole on the top of the U-shaped plate, and then the groove on the top of the nut is plugged into the bottom of the mounting base, and then the bolt is rotated with an Allen wrench to tighten the nut. When subjected to vibration or external force, the elasticity of the vulcanized rubber can generate a continuous pressure, which increases the friction between the nut and the screw rod of the bolt, and can resist the rotation tendency of the nut caused by vibration, thereby achieving an anti-loosening effect. The nut is plugged into the mounting base, which can further prevent the nut from loosening, prevent the nut and bolt from loosening easily, and improve the stability of the seat when it is used to prevent it from being pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the full cross-section structure of the utility model;

[0016] Figure 3 This is an enlarged structural diagram of the mounting base of the utility model;

[0017] Figure 4 It is a schematic diagram of the enlarged structure of the nut of the utility model.

[0018] In the figure: 1. Base; 2. Mounting seat; 3. Mounting plate; 4. Bolt; 5. Nut; 6. Vulcanized rubber; 7. Polyurethane foam. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figures 1 to 4 The utility model provides a technical solution: a lightweight, vibration-damping and noise-reducing anti-pullout seat for railway passenger cars, comprising a base 1 and a mounting seat 2, a mounting plate 3 welded to the outer wall of the mounting seat 2, a bolt 4 threadedly installed on the top of the inner wall of the mounting seat 2, a nut 5 threadedly installed on the outer wall of the bolt 4, vulcanized rubber 6 glued to the inner and outer walls of the base 1, and polyurethane foam 7 glued to the top of the base 1.

[0021] In this embodiment, Figure 1 and Figure 2 As shown, the base 1 consists of a bottom plate, a U-shaped plate and reinforcing ribs, and is integrally processed from an aluminum profile, and the aluminum profile is made of 6061-T6 material; the two reinforcing ribs can support the U-shaped plate to improve the stability of the base 1 during use.

[0022] In this embodiment, Figure 1 and Figure 2 As shown, a circular hole is opened in the middle of the top of the U-shaped plate of the base 1, and vulcanized rubber 6 is glued into the circular hole. The top and the top of the inner wall of the U-shaped plate of the base 1 are both glued with vulcanized rubber 6; when the mounting seat 2 is passed through the circular hole on the top of the U-shaped plate, the mounting seat 2 and the base 1 are then installed using bolts 4 and nuts 5. After installation, the vulcanized rubber 6 performs soft isolation, which can reduce collisions between metals and reduce noise transmission. After soft isolation, sufficient gaps are left between the mounting seat 2, the mounting plate 3 and the base 1. The mounting seat 2, the mounting plate 3 and the base 1 are movably installed, so that the seat anti-pullout can be used for the floating floor of high-speed trains.

[0023] In this embodiment, Figure 1 and Figure 2 As shown, an annular groove is provided on the top of the U-shaped plate of the base 1, and the polyurethane foam 7 is glued into the annular groove; after the mounting base 2 and the base 1 are installed, the polyurethane foam 7 can reduce the noise transmission and prevent direct collision between metals and abnormal noise.

[0024] In this embodiment, Figure 1 and Figure 2 As shown, an elliptical hole is opened on the top of the mounting plate 3, and the elliptical holes are symmetrically distributed about the vertical center line of the mounting plate 3. The mounting seat 2 and the mounting plate 3 are made of Q345D steel plate; the elliptical hole is a mounting hole, and the thickness of the mounting plate 3 is 8 mm. Combined with the base 1 made of 6061-T6 aluminum alloy, the overall weight of the anti-pullout seat can be reduced while reducing costs.

[0025] In this embodiment, Figure 3 and Figure 4 As shown, a hexagonal groove is provided at the top of the bolt 4, grooves are provided on both sides of the bottom outer wall of the mounting base 2, and a groove whose internal dimension structure is consistent with the external dimension structure of the mounting base 2 is provided at the top of the nut 5; when the mounting base 2 and the base 1 are installed using the bolt 4 and the nut 5, the groove at the top of the nut 5 is plugged into the bottom of the mounting base 2, and then the bolt 4 is rotated with the hexagonal wrench to install the mounting base 2 and at the same time improve the stability of the mounting base 2 and the base 1 after being installed by the nut 5 and the bolt 4.

[0026] In this embodiment, Figure 4 As shown, the bottom of the inner wall of the hexagonal groove at the top of the nut 5 is glued with vulcanized rubber 6; when the bolt 4 is rotated and the mounting seat 2 is installed with the base 1 through the nut 5 and the bolt 4, the vulcanized rubber 6 has good elasticity and friction. When the nut 5 is tightened, the vulcanized rubber 6 is squeezed between the nut 5 and the mounting seat 2. When subjected to vibration or external force, the elasticity of the vulcanized rubber 6 can generate a continuous pressure, which increases the friction between the nut 5 and the screw of the bolt 4, and can resist the rotation tendency of the nut 5 caused by vibration, thereby playing a role in preventing loosening.

[0027] The use method and advantages of the utility model: The lightweight vibration-reducing and noise-reducing anti-pullout device for railway passenger cars works as follows when in use:

[0028] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, first pass the mounting base 2 through the circular hole on the top of the U-shaped plate, then insert the groove on the top of the nut 5 into the bottom of the mounting base 2, and then use the hexagonal wrench to rotate the bolt 4 to tighten the nut 5. The vulcanized rubber 6 is squeezed between the nut 5 and the mounting base 2. When the seat anti-pullout is used, the vulcanized rubber 6 and the polyurethane foam 7 on the base 1 can reduce the collision between metals and reduce the noise transmission. The vulcanized rubber 6 in the nut 5 has an anti-loosening effect.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight, vibration-damping, and noise-reducing anti-pullout seat for a railway passenger car, comprising a base (1) and a mounting seat (2), characterized in that: The outer wall of the mounting seat (2) is welded with a mounting plate (3), the top of the inner wall of the mounting seat (2) is threadedly mounted with a bolt (4), the outer wall of the bolt (4) is threadedly mounted with a nut (5), the inner and outer walls of the base (1) are both glued with vulcanized rubber (6), and the top of the base (1) is glued with polyurethane foam (7).

2. The lightweight, vibration-damping, and noise-reducing anti-pullout device for railway passenger seats according to claim 1, characterized in that: The base (1) is composed of a bottom plate, a U-shaped plate and reinforcing ribs, and is integrally processed from an aluminum profile, and the material of the aluminum profile is 6061-T6 material.

3. The lightweight, vibration-damping, and noise-reducing anti-pullout device for railway passenger seats according to claim 2, characterized in that: A circular hole is provided in the middle of the top of the U-shaped plate of the base (1), and vulcanized rubber (6) is glued into the circular hole. The top of the U-shaped plate and the top of the inner wall of the base (1) are both glued with vulcanized rubber (6).

4. The lightweight, vibration-damping, and noise-reducing anti-pullout device for railway passenger seats according to claim 3 is characterized by: An annular groove is provided on the top of the U-shaped plate of the base (1), and the polyurethane foam (7) is glued into the annular groove.

5. The lightweight, vibration-damping, and noise-reducing anti-pullout device for railway passenger seats according to claim 1 is characterized in that: The top of the mounting plate (3) is provided with elliptical holes, and the elliptical holes are symmetrically distributed about the vertical center line of the mounting plate (3). The mounting seat (2) and the mounting plate (3) are made of Q345D steel plate.

6. The lightweight, vibration-damping, and noise-reducing anti-pullout device for railway passenger seats according to claim 1 is characterized in that: A hexagonal groove is provided on the top of the bolt (4), grooves are provided on both sides of the bottom outer wall of the mounting seat (2), and a groove having an internal dimension structure consistent with the external dimension structure of the mounting seat (2) is provided on the top of the nut (5).

7. The lightweight, vibration-damping, and noise-reducing anti-pullout device for railway passenger seats according to claim 6, characterized in that: The bottom of the inner wall of the hexagonal groove at the top of the nut (5) is glued with vulcanized rubber (6).

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