一种负压式气枪干燥降噪防护箱
By designing a negative pressure air gun drying and noise reduction protective box, and utilizing a sound-absorbing and noise-reducing layer and a vacuum negative pressure device, the health threats posed by the noise and aerosol from the pressure air gun to operators are solved, achieving noise reduction and protection effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOUTH CHINA HOSPITAL OF SHENZHEN UNIVERSITY
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-17
AI Technical Summary
The high-decibel noise and high-speed airflow generated by the pressure air gun during operation can cause damage to the hair cells in the cochlea of the operator and threaten the respiratory system. In addition, the particulate matter generated during the cleaning process poses a health hazard to the operator.
A negative pressure air gun drying and noise reduction protective box is designed. The sound-absorbing and noise-reducing layer is composed of sound insulation felt and polyurethane foam board. Combined with a vacuum negative pressure suction device, it isolates and absorbs noise and prevents aerosol diffusion.
It effectively reduces the risk of mechanical damage to the hair cells in the cochlea of operators, prevents noise-induced hearing loss, reduces the risk of respiratory diseases, and protects the health of operators.
Smart Images
Figure CN224517167U_ABST
Abstract
Claims
1. A negative pressure air gun drying and noise reduction protection box, characterized in that, include: Box; The housing includes a housing body and a transparent plate disposed at the front end of the housing body. The transparent plate and the housing body cooperate to form a receiving cavity for accommodating the air gun. The enclosure body includes a sound-absorbing and noise-reducing layer and a structural support layer. The sound-absorbing and noise-reducing layer is made of sound-insulating felt, and the structural support layer is made of polyurethane foam board.
2. The negative pressure airgun dry silencer guard box of claim 1, wherein, The box body is provided with an air gun insertion hole that penetrates its wall thickness. Multiple elastic one-way diaphragm flaps are fixedly arranged circumferentially inside the air gun insertion hole. Each elastic one-way diaphragm flap has a fixed end and a free end. The fixed end is fixed to the inner wall surface of the air gun insertion hole, and the free end extends from the fixed end into the receiving cavity. The free end is inclined towards the central axis of the air gun insertion hole. The multiple elastic one-way diaphragm flaps contact and abut each other in the central area of the air gun insertion hole to close the air gun insertion hole.
3. The negative pressure airgun dry silencer guard box of claim 2, wherein, Also includes: Drainage bottle; A vacuum negative pressure suction device is provided, which is located below the box and connected to the liquid outlet at the bottom of the box. A drainage tube having a first end and a second end; The first end of the drainage tube is connected to the vacuum negative pressure suction device, and the second end of the drainage tube is connected to the drainage bottle. The vacuum negative pressure suction device draws the liquid in the receiving cavity into the drainage bottle through the drainage tube.
4. The negative pressure airgun dry silencer guard box of claim 1, wherein, The transparent panel is made of PVC.
5. The negative pressure airgun dry silencer guard box of claim 1, wherein, The top plate of the box body is provided with a first handle and a second handle, which are arranged opposite to each other.
6. The negative pressure airgun dry silencer guard box of claim 2, wherein, Each of the elastic one-way diaphragm flaps is made of silicone rubber, and the free end of the elastic one-way diaphragm flap is inclined at an angle of 15° to 45° with the central axis of the air gun insertion hole. Multiple elastic one-way diaphragm flaps cooperate to form an overlapping sealing surface.
7. The negative pressure airgun dry silencer guard box of claim 1, wherein, The thickness of the transparent plate is 5mm to 8mm, and the edge of the transparent plate is sealed to the front end of the box body by a U-shaped sealing strip.
8. The negative pressure airgun dry silencer guard box of claim 1, wherein, A fireproof partition is provided between the sound-absorbing and noise-reducing layer and the structural support layer. The fireproof partition is made of ceramic fiber felt and has a thickness of 2mm to 3mm.