Sound insulation vehicle body structure

Abstract

The utility model relates to the technical field of locomotive bodies, in particular to a sound insulation vehicle body structure which comprises a vehicle body frame, a guardrail is arranged on one side of the vehicle body frame, a sponge body layer is arranged on one side in the vehicle body frame, a silencing pipe is arranged in the sponge body layer, and a first fixing plate is arranged on one side of the sponge body layer. A honeycomb pore plate is arranged on one side of the first fixing plate, a second fixing plate is arranged on one side of the honeycomb pore plate, a rubber plate is arranged on one side of the second fixing plate, a sound insulation plate is arranged on one side of the rubber plate, and the silencing pipe, the honeycomb pore plate, the rubber plate and the sound insulation plate are arranged in the vehicle body frame, so that the noise reduction effect of the vehicle body frame is improved through multi-stage noise reduction treatment. The automobile body frame has the advantages of being simple in structure, convenient to machine, low in manufacturing cost and good in sound insulation effect due to the fact that a large amount of noise is consumed every time the noise passes through different plate layers, the effect is more remarkable, and the automobile body frame is of a conventional structure and is convenient to machine and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive bodies, in particular to a sound insulation body structure. Background Art

[0002] A diesel shunting locomotive uses an internal combustion engine as its prime mover and drives the wheels through a transmission device. It is mainly used for train marshaling and dismantling operations in shunting yards, shunting within stations, or for short-distance small-scale traction operations.

[0003] However, the existing locomotive body itself has poor sound insulation effect during use, which leads to loud noise when the body is in use, which is easy to affect the people in the body. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a sound insulation vehicle body structure.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a soundproof vehicle body structure, comprising a vehicle body frame, a guardrail is arranged on one side of the vehicle body frame, a sponge layer is arranged on one side of the vehicle body frame, a silencer is arranged in the sponge layer, a first fixing plate is arranged on one side of the sponge layer, a honeycomb plate is arranged on one side of the first fixing plate, a second fixing plate is arranged on one side of the honeycomb plate, a rubber plate is arranged on one side of the second fixing plate, and a soundproof plate is arranged on one side of the rubber plate.

[0008] Furthermore, the utility model is improved in that a connecting rod is provided at the top end of the silencer pipe, an elastic sheet is provided at the bottom end of the connecting rod, a rubber block is provided at the bottom end of the silencer pipe, the rubber block is provided with a spring, and one end of the spring is against the bottom of the elastic sheet.

[0009] Furthermore, the utility model is improved in that a plurality of springs are provided and are evenly arranged on the top of the rubber block.

[0010] Furthermore, the utility model is improved in that a plurality of the silencer pipes are provided and are evenly arranged inside the sponge layer.

[0011] Furthermore, the utility model is improved in that sound-absorbing cotton is arranged inside the honeycomb hole plate.

[0012] Furthermore, the utility model is improved in that both the first fixing plate and the second fixing plate are provided with through holes, and a plurality of through holes are provided.

[0013] Furthermore, the utility model is improved in that the sound insulation board is made of polyester fiber sound insulation material.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a sound insulation vehicle body structure, which has the following beneficial effects:

[0016] The soundproof vehicle body structure has a vehicle body frame with a silencer pipe, a honeycomb plate, a rubber plate and a soundproof plate arranged inside, and can achieve a better soundproofing effect through multi-stage noise reduction treatment. A large amount of noise is lost each time the noise passes through different plate layers, and the effect is more significant. The device adopts a conventional structure, is easy to process, and has a low cost, so that the soundproofing effect of the vehicle body frame is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the inner structure of the middle vehicle body frame;

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the internal enlarged structure of the middle silencer pipe;

[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the inner structure from a side view;

[0021] Figure 5 For this utility model Figure 4 Schematic diagram of the structure of the medium honeycomb plate;

[0022] In the figure: 1. body frame; 2. guardrail; 3. sponge layer; 4. silencer; 5. connecting rod; 6. elastic sheet; 7. rubber block; 8. spring; 9. first fixing plate; 10. honeycomb plate; 11. second fixing plate; 12. rubber plate; 13. sound insulation board. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5A soundproof vehicle body structure comprises a vehicle body frame 1, a guardrail 2 is arranged on one side of the vehicle body frame 1, a sponge layer 3 is arranged on one side of the vehicle body frame 1, a silencer pipe 4 is arranged in the sponge layer 3, a first fixing plate 9 is arranged on one side of the sponge layer 3, a honeycomb hole plate 10 is arranged on one side of the first fixing plate 9, a second fixing plate 11 is arranged on one side of the honeycomb hole plate 10, a rubber plate 12 is arranged on one side of the second fixing plate 11, a soundproofing plate 13 is arranged on one side of the rubber plate 12, a connecting rod 5 is arranged on the top end of the silencer pipe 4, an elastic sheet 6 is arranged on the bottom end of the connecting rod 5, a rubber block 7 is arranged on the bottom end of the silencer pipe 4, a spring 8 is arranged on the rubber block 7, one end of the spring 8 is against the bottom of the elastic sheet 6, and silencer cotton is arranged inside the honeycomb hole plate 10.

[0025] During the actual use of the above structure, noise is transmitted through vibration. The external noise will first enter the sponge layer 3, and then part of the noise will be consumed by the silencer 4. The noise will drive the elastic sheet 6 to vibrate through the connecting rod 5, thereby reducing the noise. The vibration is reduced by setting the spring 8 to further consume the noise. Some of the noise that is not consumed enters the honeycomb plate 10 and is further consumed by the silencer cotton in the honeycomb plate 10. Through the multi-level processing of the rubber plate 12 and the sound insulation plate 13, a large amount of noise is lost each time the noise passes through different plate layers, and the effect is more significant, thereby ensuring the sound insulation effect of the vehicle body frame 1.

[0026] In this embodiment, a plurality of springs 8 are provided and are evenly arranged on the top of the rubber block 7 , thereby improving the practicality of the silencer 4 .

[0027] In this embodiment, a plurality of silencer pipes 4 are provided and are evenly arranged inside the sponge layer 3 to ensure the sound insulation effect of the vehicle body frame 1 .

[0028] In this embodiment, through holes are provided on the first fixing plate 9 and the second fixing plate 11 . There are a plurality of through holes, so that noise can enter the honeycomb plate 10 through the through holes for silencer.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sound insulation vehicle body structure, characterized in that: The invention comprises a vehicle frame (1), a guardrail (2) being arranged on one side of the vehicle frame (1), a sponge layer (3) being arranged on one side of the vehicle frame (1), a silencer pipe (4) being arranged in the sponge layer (3), a first fixing plate (9) being arranged on one side of the sponge layer (3), a honeycomb plate (10) being arranged on one side of the first fixing plate (9), a second fixing plate (11) being arranged on one side of the honeycomb plate (10), a rubber plate (12) being arranged on one side of the second fixing plate (11), and a sound insulation plate (13) being arranged on one side of the rubber plate (12).

2. A soundproof vehicle body structure according to claim 1, characterized in that: A connecting rod (5) is arranged at the top end of the silencer pipe (4), an elastic sheet (6) is arranged at the bottom end of the connecting rod (5), a rubber block (7) is arranged at the bottom end of the silencer pipe (4), a spring (8) is arranged on the rubber block (7), and one end of the spring (8) is against the bottom of the elastic sheet (6).

3. A soundproof vehicle body structure according to claim 2, characterized in that: A plurality of springs (8) are provided and are evenly arranged on the top of the rubber block (7).

4. The soundproof vehicle body structure according to claim 3, characterized in that: A plurality of silencer pipes (4) are provided and are evenly arranged inside the sponge layer (3).

5. The soundproof vehicle body structure according to claim 4, characterized in that: Sound-absorbing cotton is arranged inside the honeycomb plate (10).

6. The soundproof vehicle body structure according to claim 5, characterized in that: The first fixing plate (9) and the second fixing plate (11) are both provided with through holes, and a plurality of through holes are provided.

7. The soundproof vehicle body structure according to claim 6, characterized in that: The sound insulation board (13) is made of polyester fiber sound insulation material.

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