CN212129652U - A-level fireproof adjustable sound absorption device - Google Patents
A-level fireproof adjustable sound absorption device Download PDFInfo
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- CN212129652U CN212129652U CN202020353275.4U CN202020353275U CN212129652U CN 212129652 U CN212129652 U CN 212129652U CN 202020353275 U CN202020353275 U CN 202020353275U CN 212129652 U CN212129652 U CN 212129652U
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
- E04C1/395—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra for claustra, fences, planting walls, e.g. sound-absorbing
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0867—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having acoustic absorption means on the visible surface
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/118—Panels, e.g. active sound-absorption panels or noise barriers
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- Architecture (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Multimedia (AREA)
- Building Environments (AREA)
Abstract
The utility model relates to an A-level fireproof adjustable sound absorption device, which comprises a metal base, a sound absorption component, a panel component and a transmission component, wherein the panel component comprises a plurality of strip-shaped metal shutters; a plurality of metal shutters are arranged at the opening of the cavity in parallel and are arranged in a high-low fluctuating way along the depth direction of the cavity; the plurality of metal shutters cover the openings of the cavities when the openings are spliced into a panel shape, and the openings of the cavities are opened when the plurality of metal shutters rotate; the adjustable sound absorption device for the A-level fire prevention of the utility model realizes the A-level fire prevention requirement; the fluctuation structure of the metal shutter and the metal section plate on the surface of the panel assembly increases the sound diffusion performance of the panel assembly of the adjustable sound absorption device, and the panel assembly cannot be gathered back and forth to form harmful standing waves; the structure of the transmission assembly enables the metal shutters in different depth directions to synchronously turn over; through the overturning of the metal shutter, the adjustable sound absorption device can adjust reverberation time parameters.
Description
Technical Field
The utility model belongs to the technical field of inhale the sound, concretely relates to adjustable sound absorbing device of A level fire prevention.
Background
Generally, a large theater mainly has two functions of art performance and conference, and the two different functions have different requirements on reverberation time parameters of sound in the theater and different sound absorption effects.
The reverberation time is defined as the time required for the sound pressure level to decay by 60dB after the sound source stops sounding when the sound field in the room reaches a steady state. In general, reverberation time is an important index for describing listening clarity and fullness. The reverberation time is short, the definition is high, but the fullness is poor; the reverberation time is long, and the fullness is good but the definition is poor. According to different theatrical functions and purposes, the reverberation time in the theatrical is adjusted to achieve a comfortable listening effect.
When the art performs, people need to be full and bright, the hearing effect at each corner is the same, the sound is diffused to meet the requirement of the field effect, and at the moment, the sound absorption materials needed in the theater are less, and the reverberation time is longer. When a meeting is held, sound needs to be clear, more sound absorption materials are needed in a theater, and reverberation time is short to achieve the effect of clear sound.
When the existing adjustable sound absorption device is in a longer reverberation time parameter state, the sound diffusion effect is poor, and the mutual interference among sounds is increased.
Meanwhile, the adjustable sound absorption device meets the fireproof requirement under the condition of meeting the adjustable sound absorption characteristic in a large theater, and has great significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the technical problem who exists among the above-mentioned background art, providing an adjustable sound absorbing device of A level fire prevention, adjust reverberation time in order to satisfy multiple acoustic function in the use scene.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
an adjustable sound absorption device of A-level fire prevention comprises a metal base, a sound absorption assembly, a panel assembly and a transmission assembly.
The metal base comprises a cavity with an opening, and the metal base comprises metal side plates on two sides.
The sound-absorbing component is made of fireproof materials; the sound-absorbing component is arranged in the cavity; inhale the sound subassembly and satisfy A level fire prevention demand, when the opening is in the open mode, inhale the sound subassembly and be used for the sound absorption, reduce the time of reverberation.
The panel assembly comprises a plurality of strip-shaped metal shutters; the metal shutters are arranged at the opening of the cavity in parallel and are arranged in a high-low fluctuating mode along the depth direction of the cavity; metal section plates are connected among the metal shutters in different depth directions in a separated mode; the metal shutter and the metal section plate are connected and arranged between the two metal side plates; fixing parts are arranged at two ends of the metal shutter; the plurality of metal shutters cover the openings of the cavities when the openings are spliced into a panel shape, and the plurality of metal shutters open the openings of the cavities when rotating; the metal shutter and the metal section plate form a fluctuation structure which can increase sound diffusion performance. Only the presence of the metal profile plates allows to completely close the opening of the cavity when the metal shutter is in the splicing condition.
The transmission assembly drives the metal shutter to turn over.
Preferably, the transmission assembly comprises a transmission valve strip, a fixing piece and a driving part, and the driving part drives the transmission valve strip to move; the number of the fixing pieces is multiple; the transmission valve strip is provided with a connecting point matched with the fixed part of the metal shutter; the relative position between each connecting point is consistent with the relative position between each metal shutter, one end of the fixing piece is connected with the connecting point of the transmission valve strip in a relatively rotatable manner, and the other end of the fixing piece is connected with the fixing part of the metal shutter. Only when the position setting of the tie point on the transmission valve strip satisfies above-mentioned requirement, in the different degree of depth direction the synchronous upset can only be realized to the metal tripe. When the metal shutter is turned over, the angle between the fixing piece and the metal shutter is unchanged, and the turning over of the metal shutter is realized through the rotation of the fixing piece.
When the metal shutters are in a splicing state, the metal shutters on the surface of the panel assembly and the fluctuation structure of the metal section plate enable the panel assembly of the adjustable sound absorption device to have increased sound diffusion performance, and sound is diffused without being gathered back and forth to form harmful standing waves. The structure of the transmission assembly enables the metal shutters in different depth directions to synchronously turn over.
Preferably, the driving part comprises a motor, a transmission rack and a metal connecting piece, the motor comprises an output gear, and the output gear is meshed with the transmission rack and transmits the transmission rack; one end of the metal connecting piece is rotatably connected with the transmission rack, the other end of the metal connecting piece is rotatably connected with the transmission valve strip, and the position of the transmission rack in the depth direction of the cavity is not changed. The output gear of the motor drives the transmission valve strip to reciprocate, so that the metal shutter is controlled to turn over.
Different from the specific structure of the driving part, the driving structure can also be an electric push rod, one end of the electric push rod is movably connected to the transmission valve strip, and the extension and contraction of the electric push rod enable the transmission valve strip to reciprocate so as to control the turnover of the metal shutter.
Preferably, the metal side plate comprises a metal inner side plate and a metal outer side plate; the outer edges of the metal outer side plate and the metal inner side plate are provided with protruding platform teeth in a height-fluctuation shape, and the protruding platform teeth are used for matching the height-fluctuation arrangement shape of the metal shutter in the depth direction of the opening of the cavity, so that a simple structure of the adjustable sound absorption device is formed; the length of the metal shutter is equal to the distance between the two metal inner side plates.
Preferably, at least one metal shutter is arranged between the protruding platform teeth of the metal inner side plates on the two sides. The metal shutters with different numbers are arranged on the platform teeth, so that the irregularity of the undulation state of the surface of the panel assembly is increased, and the sound diffusion performance of the panel assembly of the adjustable sound absorption device is increased.
Preferably, a first hook-shaped part and a second hook-shaped part are respectively arranged on two sides of the metal shutter; the shapes of the first hook-shaped part and the second hook-shaped part are matched with each other, so that when the metal shutter covers the opening, the first hook-shaped part and the second hook-shaped part of the adjacent metal shutter are mutually overlapped. The matching structure of the first hook-shaped part and the second hook-shaped part ensures that the two adjacent metal shutters can be completely closed when in a connecting state.
Preferably, inhale the sound subassembly include the metal perforated plate and set up in the fire prevention between metal perforated plate and the metal base is inhaled the sound and is filled, the fire prevention is inhaled the sound and is filled for sandwich structure's A level incombustible glass cotton or sandwich structure be the rock wool, the perforation rate of metal perforated plate is 10% ~ 40%. The perforated sound-absorbing board is simple and practical in structure, and materials of all structures of the perforated sound-absorbing board are adjusted, so that the sound-absorbing assembly meets the A-level fireproof requirement. The sandwich structure rock wool has low material cost and excellent sound absorption effect.
Preferably, a polygonal fixing shaft hole is formed in the axial direction of the metal shutter, the fixing part of the metal shutter is a fixing bolt, and the fixing bolt is detachably arranged in the polygonal fixing shaft hole; the other end of the fixing piece is provided with a polygonal fixing hole, and the fixing bolt penetrates through the polygonal fixing shaft hole and the polygonal fixing hole to connect the fixing piece with the metal shutter; the one end of the fixing piece is hinged with the transmission valve strip. When the transmission valve strip moves, the fixing piece and the transmission valve strip rotate relatively, and the fixing piece drives the metal shutter to rotate.
Preferably, one surface of the metal shutter is a plane, and the other surface of the metal shutter is an arc surface or a conical surface. The metal shutter is made of a metal material meeting the A-level fire protection requirement, so that the metal shutter meets the A-level fire protection requirement. One surface of the metal shutter is a plane, and the other surface of the metal shutter is an arc surface or a conical surface, so that the installation orientation of the metal shutter can be adjusted when the metal shutter is installed, and the whole appearance of the adjustable sound absorption device can be selected between the arc surface or the conical surface and the plane. Independent of the overall fluctuation structure of the metal shutter and the metal section plate, the other surface of the metal shutter is designed to be an arc surface or a conical surface, so that the sound diffusion performance of the metal shutter monomer can be improved.
Preferably, the metal louver is of a hollow structure, and reinforcing ribs are arranged between the one surface and the other surface of the metal louver. On the premise of meeting the strength requirement of the metal shutter, the material is saved.
When the art performs, the metal shutters are spliced into a panel shape at the opening and cover the opening of the cavity to improve reverberation time parameters, so that sound is saturated, and meanwhile, the sound diffusion performance of the panel assembly of the adjustable sound absorption device is improved due to the fluctuating structure on the surface of the panel assembly.
When holding the meeting, it is a plurality of open when the metal tripe is rotatory the opening of cavity inhales the sound subassembly and produces the effect to reduce reverberation time parameter, make sound clear, the undulation structure on panel assembly surface makes adjustable sound absorbing device's panel assembly's sound diffusion performance increase simultaneously.
The utility model provides an adjustable sound absorbing device of A level fire prevention has following beneficial effect:
1. on the premise that each component of the adjustable sound absorption device meets the requirement of adjustable sound absorption performance, the A-level fireproof requirement is realized;
2. the metal shutter and the metal section plate on the surface of the panel assembly have the fluctuant structure, so that the sound diffusion performance of the panel assembly of the adjustable sound absorption device is improved, and the panel assembly of the adjustable sound absorption device cannot be gathered back and forth to form harmful standing waves.
3. The structure of the transmission assembly enables the metal shutters in different depth directions to synchronously turn over;
4. the perforated sound-absorbing plate is simple and practical in structure, and materials of all structures of the perforated sound-absorbing plate are adjusted, so that the sound-absorbing assembly meets the A-level fireproof requirement;
5. when the adjustable sound absorption device is installed, the installation direction of the metal shutter can be adjusted, so that the whole appearance of the adjustable sound absorption device can be selected between an arc surface or a conical surface and a plane; independent of the overall fluctuation structure of the metal shutter and the metal section plate, the other surface of the metal shutter is designed to be an arc surface or a conical surface, so that the sound diffusion performance of the metal shutter monomer can be improved;
6. through the overturning of the metal shutter, the adjustable sound absorption device can adjust reverberation time parameters.
Drawings
Fig. 1 is a schematic view of the adjustable sound absorption device of the present invention with the metal louver in an open state;
FIG. 2 is a schematic view of the transmission assembly and the metal louver of the present invention in an open state;
FIG. 3 is a schematic view of the fixing member of the present invention;
fig. 4 is a state diagram of the transmission assembly of the present invention with the metal louver (hidden) in an open state;
FIG. 5 is a schematic view of the driving valve strip of the present invention;
FIG. 6 is a schematic view of the adjustable sound absorption device of the present invention with the metal louver in a splicing state;
FIG. 7 is a schematic view of the transmission assembly and the metal louver in the assembled state of the metal louver of the present invention;
fig. 8 is a state diagram of the transmission assembly of the present invention with the metal louver (hidden) in the split state;
FIG. 9 is a schematic view of the metal louver and the fixing bolt of the present invention;
FIG. 10 is a schematic cross-sectional view of a metal louver of the present invention;
FIG. 11 is a schematic view of the structure of the metal side plates on two sides of the present invention;
fig. 12 is a schematic view of the position relationship between the metal section plate and the sound-absorbing assembly when the metal louver of the present invention is in the splicing state;
fig. 13 is a schematic view of the position relationship between the metal section plate and the sound-absorbing member when the metal louver of the present invention is in the open state;
fig. 14 shows the structure relationship of the metal shutter on the metal side plate in the embodiment 2.
Reference numerals: 100-adjustable sound absorption device, 1-metal base, 11-metal side plate, 111-metal inner side plate, 112-metal outer side plate, 113-platform tooth, 2-metal section plate, 3-metal shutter, 31-polygonal fixed shaft hole, 32-first hook-shaped part, 33-second hook-shaped part, 4-fixed bolt, 51-metal perforated plate, 52-fireproof sound absorption filling, 6-panel component, 7-transmission component, 71-output gear, 72-transmission rack, 73-metal connecting piece, 74-transmission valve strip, 741-connecting point, 75-fixed piece and 751-polygonal fixed hole.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1 and 6, an adjustable sound absorption device 100 for class a fire protection comprises a metal base 1, a sound absorption component, a panel component 6 and a transmission component 7.
As shown in fig. 2 to 8, the metal base 1 includes a cavity with an opening, and the metal base 1 includes two metal side plates 11.
The sound-absorbing component is made of fireproof materials; the sound-absorbing component is arranged in the cavity; inhale the sound subassembly and satisfy A level fire prevention demand, when the opening is in the open mode, inhale the sound subassembly and be used for the sound absorption, reduce the time of reverberation.
The panel assembly 6 comprises a plurality of strip-shaped metal shutters 3; a plurality of metal louvers 3 are arranged in parallel at the opening of the cavity and arranged in a high-low undulating manner along the depth direction of the cavity; metal section plates 2 are connected among the metal shutters 3 in different depth directions in a separated mode; the metal shutter 3 and the metal section plate 2 are connected and arranged between the two metal side plates 11; fixing parts are arranged at two ends of the metal shutter 3; the plurality of metal shutters 3 cover the openings of the cavities when the openings are spliced into a panel shape, and the plurality of metal shutters 3 open the openings of the cavities when rotating; the metal shutter 3 and the metal section plate 2 form a fluctuation structure which can increase sound diffusion performance. Only the presence of the metal profiled plates 2 allows to completely close the opening of the cavity when the metal shutter 3 is in the assembled condition.
The transmission component 7 drives the metal shutter 3 to turn. The transmission assembly 7 comprises a transmission valve strip 74, a fixing piece 75 and a driving part, and the driving part drives the transmission valve strip 74 to move; the number of the fixing members 75 is plural; a connecting point 741 matched with the fixed part of the metal shutter 3 is arranged on the transmission valve strip 74; the relative position between each of the connection points 741 is identical to the relative position between each of the metal louvers 3, one end of the fixing member 75 is rotatably connected to the connection point 741 of the driving valve 74, and the other end of the fixing member 75 is connected to the fixing portion of the metal louver 3. Only when the position of the connection point 741 on the transmission valve strip 74 meets the above requirements, the metal louver 3 in the directions of different depths can be turned synchronously. When the metal louver 3 is turned over, the angle between the fixing piece 75 and the metal louver 3 is not changed, and the metal louver 3 is turned over by the rotation of the fixing piece 75.
When the metal shutters 3 are in the splicing state, the metal shutters 3 on the surface of the panel assembly 6 and the fluctuation structure of the metal section plates 2 increase the sound diffusion performance of the panel assembly 6 of the adjustable sound absorption device 100, so that sound is diffused without being gathered back and forth to form harmful standing waves. The structure of the transmission component 7 is arranged to enable the metal shutter 3 in different depth directions to synchronously turn.
The driving part comprises a motor, a transmission rack 72 and a metal connecting piece 73, the motor comprises an output gear 71, and the output gear 71 is meshed with the transmission rack 72 and transmits the transmission rack 72; one end of the metal connecting piece 73 is rotatably connected with the driving rack 72, the other end of the metal connecting piece 73 is rotatably connected with the driving valve strip 74, and the position of the driving rack 72 in the depth direction of the cavity is not changed. The operation of the motor is controlled, and the output gear 71 of the motor drives the transmission valve strip 74 to reciprocate, thereby controlling the turnover of the metal shutter 3.
As shown in fig. 11, the metal side plate 11 includes a metal inner side plate 111 and a metal outer side plate 112; the outer edges of the metal outer side plate 112 and the metal inner side plate 111 are provided with protruding platform teeth 113 in a shape of undulation for matching the shape of the metal louver 3 arranged in an undulated manner in the depth direction at the opening of the cavity, so as to form a simple structure of the adjustable sound absorption device 100; the length of the metal louver 3 is equal to the distance between the two metal inner side plates 111. The transmission assembly 7 is disposed between the metal inner side plate 111 and the metal outer side plate 112.
One or two metal shutters 3 are arranged between the protruding platform teeth 113 of the metal inner side plates 111 on the two sides. The different numbers of the metal louvers 3 are provided on the platform teeth 113, so that the irregularity of the undulation state of the surface of the panel assembly 6 is increased, thereby increasing the sound diffusion performance of the panel assembly 6 of the adjustable sound absorption apparatus 100.
A first hook-shaped part 32 and a second hook-shaped part 33 are respectively arranged on two sides of the metal shutter 3; the shapes of the first hook-shaped part 32 and the second hook-shaped part 33 are matched with each other, so that when the metal louver 3 covers the opening, the first hook-shaped part 32 and the second hook-shaped part 33 of the adjacent metal louver 3 are overlapped with each other. The matching structure of the first hook-shaped part 32 and the second hook-shaped part 33 enables the metal shutter 3 to be completely closed when in a connected state.
Inhale the sound subassembly and include metal perforated plate 51 and set up in the fire prevention between metal perforated plate 51 and the metal base 1 is inhaled sound and is filled 52, the fire prevention is inhaled sound and is filled 52 and be sandwich structure's A level incombustible glass cotton or sandwich structure be rock wool, metal perforated plate 51's perforation rate is 10% ~ 40%. The perforated sound-absorbing board is simple and practical in structure, and materials of all structures of the perforated sound-absorbing board are adjusted, so that the sound-absorbing assembly meets the A-level fireproof requirement. The sandwich structure rock wool has low material cost and excellent sound absorption effect.
As shown in fig. 9, a polygonal fixing shaft hole 31 is axially formed on the metal louver 3, the fixing portion of the metal louver 3 is a fixing bolt 4, and the fixing bolt 4 is detachably disposed in the polygonal fixing shaft hole 31; a polygonal fixing hole 751 is arranged at the other end of the fixing piece 75, and the fixing bolt 4 passes through the polygonal fixing shaft hole 31 and the polygonal fixing hole 751 to connect the fixing piece 75 with the metal shutter 3; the one end of the fixing member 75 is hinged to the driving valve strip 74. When the driving valve strip 74 moves, the fixing element 75 and the driving valve strip 74 rotate relatively, and the fixing element 75 drives the metal louver 3 to rotate.
As shown in fig. 10, one surface of the metal louver 3 is a plane, and the other surface is an arc surface. The metal shutter 3 is made of a metal material meeting the A-level fireproof requirement, so that the metal shutter 3 meets the A-level fireproof requirement. One side of the metal shutter 3 is a plane and the other side is an arc surface in the structural design, when the metal shutter 3 is installed, the installation direction of the metal shutter 3 can be adjusted, so that the whole appearance of the adjustable sound absorption device 100 can be selected between the arc surface and the plane. Independent of the overall fluctuation structure of the metal shutter 3 and the metal section bar plate 2, the other surface of the metal shutter 3 is designed to be a cambered surface, so that the sound diffusion performance of the metal shutter 3 monomer can be improved.
The metal shutter 3 is of a hollow structure, and reinforcing ribs are arranged between the one surface and the other surface of the metal shutter 3. On the premise of meeting the strength requirement of the metal shutter 3, the material is saved.
As shown in fig. 12, for the metal louver of the present invention is in the split state, i.e. the state with longer reverberation time, the schematic diagram of the position relationship between the metal section plate and the sound absorption assembly. The sound absorbing component is closed, so that the reverberation time is longer.
As shown in fig. 13, for the metal louver of the present invention is in the open state, i.e. the state with short reverberation time, the schematic diagram of the position relationship between the metal section plate and the sound absorption component. The sound absorbing component is exposed so that the reverberation time is short.
When performing art, a plurality of metal shutters 3 are spliced into a panel shape at the opening to cover the opening of the cavity so as to improve reverberation time parameters, so that sound is saturated, and meanwhile, the sound diffusion performance of the panel assembly 6 of the adjustable sound absorption device 100 is improved due to the undulation structure on the surface of the panel assembly 6.
When holding the meeting, it is a plurality of metal tripe 3 opens when rotatory the opening of cavity inhales the sound subassembly and produces the effect to reduce reverberation time parameter, make sound clear, the undulation structure on panel assembly 6 surface makes the sound diffusion performance of adjustable sound absorbing device 100's panel assembly 6 increase simultaneously.
Example 2
The difference between the embodiment 2 and the embodiment 1 is that a metal louver 3 is arranged between the protruding platform teeth 113 of the metal inner side plates 111 on both sides. Two metal shutters 3 are arranged on the metal inner side plate 111 between the platform teeth 113 on the same side. The arrangement of the metal louvers 3 increases the appearance neatness of the undulated state of the surface of the panel assembly 6, and the panel assembly 6 of the adjustable sound absorbing apparatus 100 has a slightly lower sound diffusion performance than that of embodiment 1, but the overall appearance neatness is increased.
Example 3
The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The embodiment is only a single implementation manner of the present invention, and for those skilled in the art, other embodiments can be obtained according to the attached drawings without any creative effort, and are also within the protection scope of the present invention.
Claims (10)
1. A class A fire-resistant adjustable sound absorption apparatus, wherein the adjustable sound absorption apparatus (100) comprises:
the metal base (1), the metal base (1) includes the cavity pocket with opening, the metal base (1) includes the metal curb plate (11) of both sides;
a sound absorbing assembly composed of a fire resistant material; the sound-absorbing component is arranged in the cavity;
a panel assembly (6), said panel assembly (6) comprising a plurality of metal louvers (3) in the form of strips; a plurality of metal louvers (3) are arranged in parallel at the opening of the cavity and arranged in a high-low fluctuating manner along the depth direction of the cavity; metal section plates (2) are connected among the metal shutters (3) in different depth directions in a separated mode; the metal shutter (3) and the metal section plate (2) are connected and arranged between the two metal side plates (11); fixing parts are arranged at two ends of the metal shutter (3); the plurality of metal shutters (3) cover the openings of the cavities when the openings are spliced into a panel shape, and the plurality of metal shutters (3) open the openings of the cavities when rotating;
the transmission component (7), the transmission component (7) drives the metal shutter (3) to overturn.
2. The adjustable sound absorption device according to claim 1, wherein the transmission assembly (7) comprises a transmission valve strip (74), a fixing member (75) and a driving portion, the driving portion driving the transmission valve strip (74) to move; the number of the fixing pieces (75) is multiple; the transmission valve strip (74) is provided with a connection point (741) matched with the fixed part of the metal shutter (3); the relative position between each connecting point (741) is consistent with the relative position between each metal shutter (3), one end of the fixing piece (75) is connected with the connecting point (741) of the transmission valve strip (74) in a relatively rotatable manner, and the other end of the fixing piece (75) is connected with the fixed part of the metal shutter (3).
3. The adjustable sound absorption device according to claim 2, wherein the driving part comprises a motor, a driving rack (72) and a metal connecting piece (73), the motor comprises an output gear (71), and the output gear (71) is meshed with the driving rack (72) and drives the driving rack (72); one end of the metal connecting piece (73) is rotatably connected with the transmission rack (72), the other end of the metal connecting piece (73) is rotatably connected with the transmission valve strip (74), and the position of the transmission rack (72) in the depth direction of the cavity is not changed.
4. The adjustable sound absorption device as recited in claim 3, characterized in that the metal side plate (11) comprises a metal inner side plate (111) and a metal outer side plate (112); the outer edges of the metal outer side plate (112) and the metal inner side plate (111) are provided with protruding platform teeth (113) which are in a high-low undulation shape; the length of the metal shutter (3) is equal to the distance between the two metal inner side plates (111).
5. Adjustable sound absorption according to claim 4, wherein at least one metal louver (3) is arranged between the protruding platform teeth (113) of the metal inner side plates (111) on both sides.
6. The adjustable sound absorption device as recited in claim 1, wherein both sides of the metal louver (3) are respectively provided with a first hook-shaped portion (32) and a second hook-shaped portion (33); the shapes of the first hook-shaped part (32) and the second hook-shaped part (33) are matched with each other, so that when the metal shutter (3) covers the opening, the first hook-shaped part (32) and the second hook-shaped part (33) of the adjacent metal shutter (3) are mutually overlapped.
7. The adjustable sound absorption device according to claim 1, wherein the sound absorption assembly comprises a metal perforated plate (51) and a fireproof sound absorption filling (52) arranged between the metal perforated plate (51) and the metal base (1), the fireproof sound absorption filling (52) is a sandwich structure of A-class non-combustible glass wool or a sandwich structure of rock wool, and the perforated rate of the metal perforated plate (51) is 10% -40%.
8. The adjustable sound absorption device as recited in claim 2, wherein a polygonal fixing shaft hole (31) is axially formed on the metal louver (3), the fixing portion of the metal louver (3) is a fixing bolt (4), and the fixing bolt (4) is detachably disposed in the polygonal fixing shaft hole (31); the other end of the fixed piece (75) is provided with a polygonal fixed hole (751), and the fixed bolt (4) passes through the polygonal fixed shaft hole (31) and the polygonal fixed hole (751) to connect the fixed piece (75) with the metal shutter (3); the one end of the fixing member (75) is hinged to the transmission valve strip (74).
9. The adjustable sound absorption device as recited in claim 1, wherein one side of the metal louver (3) is a plane, and the other side is an arc surface or a conical surface.
10. The adjustable sound absorption device as recited in claim 9, wherein the metal louver (3) is a hollow structure, and reinforcing ribs are disposed between the one surface and the other surface of the metal louver (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020101338769 | 2020-02-27 | ||
| CN202010133876 | 2020-02-27 |
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| CN212129652U true CN212129652U (en) | 2020-12-11 |
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| CN202020353275.4U Active CN212129652U (en) | 2020-02-27 | 2020-03-19 | A-level fireproof adjustable sound absorption device |
| CN202010197217.1A Pending CN111335540A (en) | 2020-02-27 | 2020-03-19 | A-level fireproof adjustable sound absorption device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11566419B2 (en) * | 2018-06-12 | 2023-01-31 | Durali System Design & Automation Co. | Controlling acoustics of a performance space |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102602666B1 (en) * | 2023-03-29 | 2023-11-15 | 주식회사 소노볼트 | Sound diffuser |
-
2020
- 2020-03-19 CN CN202020353275.4U patent/CN212129652U/en active Active
- 2020-03-19 CN CN202010197217.1A patent/CN111335540A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11566419B2 (en) * | 2018-06-12 | 2023-01-31 | Durali System Design & Automation Co. | Controlling acoustics of a performance space |
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| Publication number | Publication date |
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| CN111335540A (en) | 2020-06-26 |
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