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Movable shutter with sound absorption function

A sound-absorbing function and blinds technology, applied in the field of blinds, can solve the problems of environmental protection, heat dissipation and ventilation with the largest air volume requirements, and achieve the effect of reducing noise pollution and reducing noise

Pending Publication Date: 2021-08-20
CRRC ZIYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the movable shutters used on diesel locomotives can only realize the opening and closing function of the side wall ventilation channel, which is far from the actual function of the locomotive. The problems existing in the traditional shutters are: 1. The ventilation air volume of the side wall shutters Appropriate adjustments should be made according to changes in the environment and climate. For example, the cooling and ventilation air volume requirements for locomotives are the largest when they are running in summer, and the cooling and ventilation air volume requirements are relatively small when running in winter. However, the movable shutter blades used by locomotives currently have no adjustment function; The blades of most movable shutters are designed as aluminum alloy extruded profiles, which have a smooth surface and no sound absorption function. Especially when the blades are open, the noise is directly transmitted outside the vehicle, which is not conducive to environmental protection.

Method used

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  • Movable shutter with sound absorption function
  • Movable shutter with sound absorption function
  • Movable shutter with sound absorption function

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, in this embodiment, a movable shutter with a sound-absorbing function includes a fixed frame 1, several blades 2 hinged in the fixed frame 1, a movable frame 3 arranged in the fixed frame 1, and the blades 2 and 2 respectively. The blade link 4 hinged by the movable frame 3 , the blade 2 includes a blade shell 21 and a sound-absorbing material 22 arranged in the blade shell 21 .

[0025] The movement of the movable frame 3 drives the blade 2 to rotate around the hinge point of the blade 2 on the fixed frame 1, so as to achieve the purpose of controlling the degree of opening and closing of the blade 2. When ventilation is not needed, the blades 2 are closed and the shutters are closed. The sound-absorbing material 22 in the blades 2 can absorb the noise generated in the locomotive and reduce the noise transmitted to the outside of the locomotive, thereby achieving a good noise reduction effect. When ventilation is required, the blades 2 are o...

Embodiment 2

[0027] On the basis of the above embodiments, in this embodiment, the blade shell 21 is provided with several suction holes. Utilizing the suction hole can enhance the sound absorption function of the blade casing 21, thereby enhancing the noise reduction function of the blade 2, and can further enhance the noise reduction effect when the blade 2 is opened.

Embodiment 3

[0029] On the basis of the above embodiments, in this embodiment, the fixed frame 1 is provided with a drive structure that is in transmission connection with the movable frame 3 . In this way, it is convenient to use the driving structure to control the opening or closing of the blade 2 .

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Abstract

The invention discloses a movable shutter with a sound absorption function. The movable shutter comprises a fixed frame, a plurality of blades hinged into the fixed frame, a movable frame arranged in the fixed frame and blade connecting rods respectively hinged with the blades and the movable frame, and each blade comprises a blade shell and a sound absorption material arranged in the blade shell. The movable shutter has the beneficial effects that the sound absorption materials are arranged in the blades, so that the blades have a sound absorption function, noise transmitted from the interior of a locomotive to the outside can be reduced, and noise pollution to the environment outside the locomotive is reduced.

Description

technical field [0001] The invention relates to the technical field of shutters, in particular to a movable shutter with a sound-absorbing function. Background technique [0002] At present, the movable shutters used on diesel locomotives can only realize the opening and closing function of the side wall ventilation channel, which is far from the actual function of the locomotive. The problems existing in the traditional shutters are: 1. The ventilation air volume of the side wall shutters Appropriate adjustments should be made according to changes in the environment and climate. For example, the cooling and ventilation air volume requirements for locomotives are the largest when they are running in summer, and the cooling and ventilation air volume requirements are relatively small when running in winter. However, the movable shutter blades used by locomotives currently have no adjustment function; The blades of most movable shutters are designed as aluminum alloy extruded ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B9/386E06B7/092B61D27/00
CPCE06B9/386E06B7/092B61D27/009
Inventor 隆孝军唐剑东黎焕先郑婵汪炜奇陈传彬马瑞卿
Owner CRRC ZIYANG CO LTD
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