Mobile Silent Testing Room

Abstract

The present invention discloses a mobile silent shielding test room, which includes an external soundproof room structure, an internal soundproof room structure, a ventilation system, a pipeline wiring system, and a lighting soundproof window. The external soundproof room structure includes a steel plate enclosure structure, a thick steel plate base, an adjustable damping spring isolator, an adjustable movable wheel, and an external soundproof door; the internal soundproof room structure includes a steel square tube frame, a rigid vibration isolation base, a shear-type rubber isolator, and an internal soundproof door; the ventilation system includes an air inlet muffler, an air outlet muffler, an exhaust fan, and a vibration isolation mounting frame; the control pipeline system includes a control cabinet, a control switch, a power interface socket, a data line interface socket, an incoming line soundproof structure, a wiring tube, and an outgoing line soundproof structure. It is a small, low background noise value, movable silent test room.

Description

Technical Field

[0001] The invention relates to a product testing room, in particular to a mobile silent testing room which can be moved for testing as required. Background Art

[0002] Silent test room (acoustic test room) is a sound insulation test device designed for product manufacturing workshops with testing requirements. Sound absorption treatment is carried out in the sound insulation room to make it a small silent room, in which some small products such as motors, speakers, transformers, etc. can be tested. Since the production line products are adjusted with the order, a movable test room is required.

[0003] The key technology and main technical indicators of the silent test room are high sound insulation, which enables the mobile silent test room to achieve a low-noise environment. The lower the background noise value in the mobile silent test room, the better the test effect. Due to the small size of the mobile silent test room, it is difficult to use sound insulation and sound absorption methods that occupy a large space to achieve a low-noise environment indoors. Therefore, the existing mobile silent test rooms often use a single-layer sound insulation structure without a vibration isolation structure, and their technical indicators are background noise values ​​≤35-40dB (A). To test products with noise below 40dB (A), a large silent room must be used, which is restricted by cost and space. Product manufacturing workshops are in urgent need of a small, low-cost, low-background noise mobile silent test room. Summary of the invention

[0004] In order to overcome the shortcomings of low sound insulation and high background noise value of the existing mobile silent detection room, the present invention provides a mobile silent detection room. The mobile silent detection room has a double-layer sound insulation structure of inner and outer sound insulation layers, which can meet the need for low background noise value.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a mobile silent detection room includes an external soundproof room structure, an internal soundproof room structure, a ventilation system, a pipeline wiring system, and a lighting soundproof window. The external soundproof room structure includes a steel plate enclosure structure, a thick steel plate base, an adjustable damping spring isolator, an adjustable movable wheel, and an external soundproof door; the internal soundproof room structure includes a steel square tube frame, a rigid vibration isolation base, a shear-type rubber vibration isolator, and an internal soundproof door; the ventilation system includes an air inlet muffler, an air outlet muffler, an exhaust fan, and a vibration isolation mounting frame; the control pipeline system includes a control cabinet, a control switch, a power interface socket, a data line interface socket, an incoming line sound insulation structure, a wiring pipe, and an outgoing line sound insulation structure.

[0006] The steel plate enclosure structure is folded from steel plates, assembled and welded on a thick steel plate base, coated with damping sound insulation paint on the inside, and an external sound insulation door is installed on the steel plate enclosure structure. An adjustable damping spring isolator and adjustable moving wheels are installed under the thick steel plate base.

[0007] In the production workshop environment, using steel plates as the external enclosure structure of the dynamic silent shielding test room can prevent damage to the appearance due to collision. Applying damping sound insulation paint on the inside of the steel plate enclosure structure can effectively improve the sound insulation of the external soundproof room structure. Using thick steel plates as the base of the mobile silent test room can lower the center of gravity of the test room and reduce the space occupied by the base.

[0008] The rigid vibration isolation base is installed on the thick steel plate base through the shear type rubber isolator; the steel square tube frame is welded on the rigid vibration isolation base, the damping sound insulation board is installed on the inner side of the steel square tube frame, the decorative sound absorption board is installed on the facade, the melamine board is installed on the ceiling, and the carpet is laid on the rigid vibration isolation base.

[0009] Melamine sound-absorbing cotton is a low-density, high-opening-rate, flexible foam plastic. It has good flame retardancy and sound absorption. The opening rate of more than 99% allows sound waves to effectively enter the deep layer of the foam and transform into vibration energy to be consumed and absorbed. When air passes through, the wind resistance is small, which can effectively eliminate reflected waves.

[0010] A 100mm cavity is left between the steel square tube frame and the steel plate enclosure structure, sound-absorbing materials are installed in the space inside the square tube frame of the steel square tube frame, a 30mm cavity is left between the decorative sound-absorbing board and the damping sound insulation board, and a 50mm cavity is left between the ceiling melamine board and the damping sound insulation board.

[0011] The control cabinet is installed outside the steel plate enclosure structure. The control cabinet includes a control switch, a power interface socket, and a data line interface socket. The incoming line sound insulation structure passes through the steel plate enclosure structure. The wiring tube is in the cavity between the steel square tube frame and the steel plate enclosure structure. The outgoing line sound insulation structure is arranged at a position more than 500 mm away from the incoming line sound insulation structure. The outgoing line sound insulation structure passes through the damping sound insulation board, and the line is arranged in the cavity between the decorative sound absorbing board and the damping sound insulation board.

[0012] The air inlet silencer is installed in the cavity between the steel square tube frame and the steel plate enclosure structure, the air inlet is in the middle of the steel plate enclosure structure, the air outlet is at the bottom of the damping sound insulation board, and a dust filter is arranged at the air inlet; the air outlet silencer is installed in the cavity between the steel square tube frame and the top of the steel plate enclosure structure, the air inlet is in the three-dimensional sound absorption structure of the top damping sound insulation board, the air outlet is at the top of the steel plate enclosure structure, the exhaust fan is installed on the steel plate enclosure structure through a vibration isolation mounting frame, and the exhaust fan is connected to the air outlet of the air outlet silencer through a flexible connection.

[0013] According to the "Industrial Enterprise Design Hygiene Standard" GBZ 1-2010, 6 Basic Hygiene Requirements for Workplaces 6.6 Microclimate in Workplaces 6.6.2 The per capita fresh air volume in closed workshops should be designed to be 30m³ / h~50m³ / h. The wind pressure of the exhaust fan is sufficient to overcome the local pressure loss of the inlet and outlet silencers, silencer pipes and the pressure loss along the way in the silencer room.

[0014] The fresh air for the air inlet silencer is taken from the environment of the production workshop outside the silent detection room. The temperature, humidity range and air quality of the silent detection room are controlled by the environment outside the silent detection room.

[0015] The lighting soundproof windows include inner soundproof windows and outer soundproof windows. The outer soundproof windows are installed on the steel plate enclosure structure, and the inner soundproof windows are installed on the steel square tube frame. Sound-absorbing materials are arranged around the inner soundproof windows and the outer soundproof windows. The inner soundproof windows are installed with A laminated glass, and the outer soundproof windows are installed with B laminated glass.

[0016] The beneficial effects of the present invention are that the mobile silent test room has good sound insulation and vibration isolation performance, small size, large effective space, and the indoor background noise value of the mobile silent test room is lower than the requirement of 40dB (A) of ambient noise, which can meet the requirements of testing low-noise products.

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front elevation view of the present invention.

[0019] Figure 2 It is a top view of the present invention.

[0020] Figure 3 It is a vertical cross-sectional structural diagram of the present invention.

[0021] Figure 4 It is a cross-sectional structural diagram of the rigid vibration isolation base of the present invention.

[0022] Figure 5 It is a base plan layout diagram of the present invention.

[0023] In the figure, 1. External soundproof room structure, 12. Steel plate enclosure structure, 13. Thick steel plate base, 14. Adjustable damping spring isolator, 15. Adjustable moving wheel, 16. External soundproof door, 17. Damping sound insulation coating, 2. Internal soundproof room structure, 21. Steel square tube frame, 22. Damping sound insulation board, 23. Rigid vibration isolation base, 24. Shear type rubber isolator, 25. Internal soundproof door, 26. Decorative sound absorption board, 2 7. Melamine board, 28. Carpet, 29. Sound-absorbing material, 3. Ventilation system, 31. Inlet muffler, 32. Outlet muffler, 33. Exhaust fan, 34. Vibration isolation mounting frame, 35. Dust filter, 36. Flexible connection, 4. Pipeline wiring system, 41. Control cabinet, 5. Lighting soundproof window, 51. Internal soundproof window, 52. External soundproof window, 53. A laminated glass, 54. B laminated glass, DETAILED DESCRIPTION

[0024] exist Figure 1 ,2 In the embodiments shown in , 3, and 4, a mobile silent detection room comprises an external soundproof room structure (1), an internal soundproof room structure (2), a ventilation system (3), a pipeline wiring system (4), and a lighting soundproof window (5). The external soundproof room structure (1) includes a steel plate enclosure structure (12), a thick steel plate base (13), an adjustable damping spring vibration isolator (14), an adjustable movable wheel (15), and an external soundproof door (16); the internal soundproof room structure (2) includes a steel square tube frame (21), a rigid vibration isolation base (23), a shear type rubber vibration isolator (24), and an internal soundproof door (25); the ventilation system (3) includes an air inlet silencer (31), an air outlet silencer (32), an exhaust fan (33), and a vibration isolation mounting frame (34); the control pipeline system (4) includes a control cabinet (41), a control switch (42), a power interface socket (43), a data line interface socket (44), an incoming line soundproofing structure (45), a wiring pipe (46), and an outgoing line soundproofing structure (47).

[0025] The steel plate enclosure structure (12) is formed by folding steel plates, assembled and welded on a thick steel plate base (13), coated with a damping sound insulation coating (17) on the inside, an external sound insulation door (16) is installed on the steel plate enclosure structure (12), and an adjustable damping spring isolator (14) and an adjustable moving wheel (15) are installed under the thick steel plate base (13).

[0026] The rigid vibration isolation base (23) is installed on the thick steel plate base (13) through a shear type rubber vibration isolator (24); the steel square tube frame (21) is welded to the rigid vibration isolation base (23); a damping sound insulation board (22) is installed on the inner side of the steel square tube frame (21); a decorative sound absorption board (26) is installed on the facade; a melamine board (27) is installed on the ceiling; and a carpet (28) is laid on the rigid vibration isolation base (23).

[0027] A 100 mm cavity is provided between the steel square tube frame (21) and the steel plate enclosure structure (12); a sound absorbing material (29) is installed in the space inside the square tube frame of the steel square tube frame (21); a 30 mm cavity is provided between the decorative sound absorbing board (26) and the damping sound insulation board (22); and a 50 mm cavity is provided between the ceiling melamine board (27) and the damping sound insulation board (22).

[0028] The control cabinet (41) is installed outside the steel plate enclosure structure (12); the control cabinet (41) includes a control switch, a power interface socket, and a data line interface socket; the incoming line sound insulation structure passes through the steel plate enclosure structure (12); the wiring tube is in the cavity between the steel square tube frame (21) and the steel plate enclosure structure (12); the outgoing line sound insulation structure is arranged at a position more than 500 mm away from the incoming line sound insulation structure; the outgoing line sound insulation structure passes through the damping sound insulation board (22); and the wiring is arranged in the cavity between the decorative sound absorbing board (26) and the damping sound insulation board (22).

[0029] The air inlet silencer (31) is installed in the cavity between the steel square tube frame (21) and the steel plate enclosure structure (12), the air inlet is located in the middle of the steel plate enclosure structure (12), the air outlet is located at the bottom of the damping sound insulation board (22), and a dust filter (36) is provided at the air inlet; the air outlet silencer (32) is installed in the cavity between the steel square tube frame (21) and the top of the steel plate enclosure structure (12), the air inlet is located in the top damping sound insulation board (22), and the air outlet is located at the top of the steel plate enclosure structure (12); the exhaust fan (34) is installed on the steel plate enclosure structure (12) through a vibration isolation mounting frame (35), and the exhaust fan (34) is connected to the air outlet of the air outlet silencer (32) through a flexible connection (37).

[0030] The lighting soundproof window comprises an inner soundproof window (51) and an outer soundproof window (52), the outer soundproof window (52) being installed on a steel plate enclosure structure (12), the inner soundproof window (51) being installed on a steel square tube frame (21), sound absorbing material (29) being arranged around the inner soundproof window (51) and the outer soundproof window (52), the inner soundproof window (51) being installed with A laminated glass (53), and the outer soundproof window (52) being installed with B laminated glass (54).

[0031] When the mobile silent test room needs to be moved, the height of the adjustable moving wheels (15) is adjusted and lowered, and the height of the adjustable damping spring vibration isolator (14) is raised, so that the silent test room can be moved by the moving wheels. When arriving at the installation site, the height of the adjustable damping spring vibration isolator (14) is adjusted and lowered, and the height of the adjustable moving wheels (15) is raised, so that the mobile silent test room is in contact with the workshop floor through the adjustable damping spring vibration isolator (14). The adjustable damping spring vibration isolator (14) carries the load of the mobile silent test room, isolating the influence of the ground vibration on the vibration transmission noise of the mobile silent test room.

[0032] It should be understood that various changes may be made to the above embodiments without departing from the scope of the present invention, and the embodiments may be applied to other occasions. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mobile silent testing room, comprising an external soundproof room structure, an internal soundproof room structure, a ventilation system, a pipeline wiring system, and a lighting soundproof window, characterized by: The structure of the external soundproof room includes a steel plate enclosure structure with damping sound insulation coating on the inside, a thick steel plate base, an adjustable damping spring isolator, an adjustable moving wheel, and an external soundproof door. The adjustable damping spring isolator and the adjustable moving wheel are installed under the thick steel plate base; the structure of the internal soundproof room includes a steel square tube frame, a rigid vibration isolation base, a shear type rubber isolator, and an internal soundproof door. The rigid vibration isolation base is installed on the thick steel plate base through a shear type rubber isolator; when the mobile silent shielding test room needs to be moved, the height of the adjustable moving wheel is adjusted and lowered, and the height of the adjustable damping spring isolator is raised, so that the silent shielding test room can be transferred through the moving wheels; when arriving at the installation site, the height of the adjustable damping spring isolator is adjusted and lowered, and the height of the adjustable moving wheel is raised, and the adjustable damping spring isolator bears the load of the mobile silent shielding test room.

2. According to claim 1, a mobile silent detection room is characterized by: The steel plate enclosure structure is made of folded steel plates, assembled and welded on a thick steel plate base, and the external sound insulation door is installed on the steel plate enclosure structure.

3. According to claim 1, a mobile silent detection room is characterized by: The steel square tube frame is welded on the rigid vibration isolation base, the damping sound insulation board is installed on the inner side of the steel square tube frame, the decorative sound absorption board is installed on the facade, the melamine board is installed on the ceiling, and the carpet is laid on the rigid vibration isolation base.

4. According to claim 1, the mobile silent detection room is characterized by: A 100mm cavity is left between the steel square tube frame and the steel plate enclosure structure, sound-absorbing materials are installed in the space inside the square tube frame of the steel square tube frame, a 30mm cavity is left between the decorative sound-absorbing board and the damping sound insulation board, and a 50mm cavity is left between the ceiling melamine board and the damping sound insulation board.

5. According to claim 1, the mobile silent detection room is characterized by: The control pipeline system includes a control cabinet, a control switch, a power interface socket, a data line interface socket, an incoming line sound insulation structure, a wiring pipe, and an outgoing line sound insulation structure; the control cabinet is installed outside the steel plate enclosure structure, and the control cabinet includes a control switch, a power interface socket, and a data line interface socket. The incoming line sound insulation structure passes through the steel plate enclosure structure; the wiring pipe is in the cavity between the steel square tube frame and the steel plate enclosure structure, and the outgoing line sound insulation structure is arranged at a position more than 500mm away from the incoming line sound insulation structure, the outgoing line sound insulation structure passes through the damping sound insulation board, and the line is arranged in the cavity between the decorative sound absorbing board and the damping sound insulation board.

6. According to claim 1, the mobile silent detection room is characterized by: The ventilation system includes an air inlet silencer, an air outlet silencer, an exhaust fan, and a vibration isolation mounting frame. The air inlet silencer is installed in the cavity between the steel square tube frame and the steel plate enclosure structure. The air inlet is in the middle of the steel plate enclosure structure, the air outlet is at the bottom of the damping sound insulation board, and a dust filter is arranged at the air inlet; the air outlet silencer is installed in the cavity between the steel square tube frame and the top of the steel plate enclosure structure. The air inlet is in the three-dimensional sound absorption structure of the top damping sound insulation board, and the air outlet is at the top of the steel plate enclosure structure. The exhaust fan is installed on the steel plate enclosure structure through the vibration isolation mounting frame, and the exhaust fan is connected to the air outlet of the air outlet silencer through a flexible connection.

7. The mobile silent detection room according to claim 1 is characterized by: The fresh air for the air inlet silencer is taken from the environment of the production workshop outside the silent detection room. The temperature, humidity range and air quality of the silent detection room are controlled by the environment outside the silent detection room.

8. The mobile silent detection room according to claim 1 is characterized by: The lighting soundproof windows include inner soundproof windows and outer soundproof windows. The outer soundproof windows are installed on the steel plate enclosure structure, and the inner soundproof windows are installed on the steel square tube frame. Sound-absorbing materials are arranged around the inner soundproof windows and the outer soundproof windows. The inner soundproof windows are installed with A laminated glass, and the outer soundproof windows are installed with B laminated glass.

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