A movable acoustic laboratory that can be quickly assembled and disassembled

Abstract

The present invention relates to the technical field of acoustic laboratories, and in particular to an acoustic laboratory that can be movably and quickly assembled and disassembled for use, comprising a base, wherein symmetrical ends of the base are respectively detachably and rotatably connected with a pair of second external frames and a third external frame, an upper end of the base is provided with a sound insulation bottom plate, an upper end of the sound insulation bottom plate is provided with a first external frame drivingly connected to the second external frame, an upper end of the base is provided with a driving and assembling structure that can synchronously drive the second external frame and the third external frame to a vertical splicing state, and a lower end of the base is provided with a supporting and movable structure matched with the driving and assembling structure, which effectively solves the problem that the acoustic laboratory in the prior art is invested once after being built in a fixed position, cannot be relocated and reused, greatly increases the use cost of the acoustic laboratory, and causes environmental pollution.

Description

Technical Field

[0001] The invention relates to the technical field of acoustic laboratories, and in particular to an acoustic laboratory which can be moved, quickly assembled and disassembled for use. Background Art

[0002] The acoustic laboratory is a testing laboratory specialized in acoustics. It is widely used in the acoustic performance testing of audio and video products and the noise sound power level measurement of electronic and electrical products. The acoustic laboratory consists of an anechoic chamber and an acoustic test system. The design of the anechoic chamber and the design of the acoustic test system must be done well respectively.

[0003] The existing acoustic laboratories are built at a fixed location and are put into use once and for all. They cannot be moved or reused, which greatly increases the cost of using the acoustic laboratories and causes environmental pollution. We propose a movable acoustic laboratory that can be quickly assembled and disassembled and reused multiple times. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a movable acoustic laboratory that can be quickly assembled and disassembled for use, which effectively solves the problem that the acoustic laboratory in the prior art is a one-time investment after being built in a fixed location, cannot be moved and reused, greatly increases the use cost of the acoustic laboratory, and causes environmental pollution.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A movable acoustic laboratory that can be quickly assembled and disassembled for use comprises a base, wherein the symmetrical ends of the base are respectively detachably and rotatably connected with a pair of second external frames and a third external frame, the upper end of the base is provided with a sound insulation bottom plate, the upper end of the sound insulation bottom plate is provided with a first external frame drivingly connected to the second external frame, the upper end of the base is provided with a driving structure that can synchronously drive the second external frame and the third external frame to a vertical splicing state, the lower end of the base is provided with a supporting movable structure that cooperates with the driving structure, the supporting movable structure comprises a sliding bracket that can move downward as the second external frame and the third external frame are synchronously driven and rotated, and the sliding bracket is evenly provided with a plurality of universal wheels.

[0007] Preferably, the driving and assembling structure also includes a motor fixedly connected to the sound insulation base plate, a ring groove is provided at the middle end of the base, a turntable is rotatably connected in the ring groove, the output end of the motor is connected to the turntable, a plurality of second pins are evenly arranged at the non-center end of the turntable, a connecting rod is rotatably connected to the second pin, a plurality of sliding grooves are evenly provided around the ring groove on the base, a sliding block is slidably connected in the sliding groove, the connecting rod is rotatably connected to the sliding block, a second L-shaped rod is also fixedly connected to the sliding block, a first pin is slidably connected to the inner wall of the second L-shaped rod, a pin cap is provided at the upper end of the first pin, a spring sleeved and connected to the first pin is provided between the pin cap and the second L-shaped rod, the second external frame and the third external frame are respectively provided with first L-shaped rods corresponding to the first pin at positions close to the base, and the upper ends of the pin caps are respectively provided with sliding blocks fixedly connected to the sound insulation base plate.

[0008] Preferably, coupling blocks are respectively provided at both ends of the second external frame and the third external frame, second pin grooves matching the coupling blocks are evenly opened on the base, a pin is coaxially inserted between the coupling block and the second pin groove, and a stop rod is provided at one end of the pin.

[0009] Preferably, both ends of the second external frame are rotatably connected with a first strut, a first pin groove is provided at the end of the first strut, a pair of fixed shaft blocks are respectively provided on both sides of the lower end of the first external frame, and the fixed shaft blocks are provided with support pins matched with the first pin grooves, the lower end of the first external frame is rotatably connected with a third strut, one end of the third strut is rotatably connected with the second strut, and one end of the second strut is rotatably set on the sound insulation bottom plate.

[0010] Preferably, the supporting movable structure further comprises a screw rod coaxially fixedly connected to the turntable, a screw barrel threadably connected to the screw rod is fixedly connected to the sliding bracket, and pads fixedly connected to the base are respectively arranged at both ends of the sliding bracket.

[0011] Preferably, a plurality of fixing rods fixedly connected to the sound insulation bottom plate are evenly arranged on the base.

[0012] Preferably, the first external frame, the second external frame and the third external frame are respectively provided with sound absorbing wedges, and the third external frame is provided with a chamber door.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention drives the second external frame and the third external frame to a vertical state by setting a driving and splicing structure, and the second external frame and the third external frame complete the splicing and forming around the sound insulation bottom plate. At the same time, when the second external frame deflects upward, it drives the first external frame to move upward, and the upper end wall of the second external frame and the third external frame is supported and connected to the lower end of the first external frame to complete the splicing and forming of the upper end surface of the sound insulation bottom plate. Since the first external frame, the second external frame and the third external frame can be built synchronously, the acoustic laboratory can be quickly built, and since the second external frame and the third external frame are independently set, they can be disassembled and transported separately, which is convenient for relocation.

[0015] 2. By setting up a supporting mobile structure, the sliding bracket drives the universal wheel to move downward to support the acoustic laboratory, which is convenient for adjusting the overall position of the acoustic laboratory. This effectively solves the problem in the prior art that the acoustic laboratory is a one-time investment after being built in a fixed position and cannot be moved or reused, which greatly increases the use cost of the acoustic laboratory. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first structural schematic diagram of a movable and quickly assembled and disassembled acoustic laboratory of the present invention;

[0017] Figure 2 A second structural schematic diagram of a movable and quickly assembled and disassembled acoustic laboratory according to the present invention;

[0018] Figure 3 This is a schematic structural diagram of a sound insulation base plate of an acoustic laboratory that can be moved and quickly assembled and disassembled for use according to the present invention;

[0019] Figure 4 This is a schematic structural diagram of a first external frame of an acoustic laboratory that can be moved and quickly assembled and disassembled for use according to the present invention;

[0020] Figure 5 This is a schematic structural diagram of a sound insulation base plate of an acoustic laboratory that can be moved and quickly assembled and disassembled for use according to the present invention;

[0021] Figure 6 It is a structural schematic diagram of a turntable of an acoustic laboratory that can be moved and quickly assembled and disassembled for use according to the present invention;

[0022] Figure 7 The present invention is a kind of acoustic laboratory that can be moved and quickly assembled and disassembled. Figure 6 A partial enlarged view of area A;

[0023] Figure 8 The present invention is a kind of acoustic laboratory that can be moved and quickly assembled and disassembled. Figure 4 A local enlarged view of area B;

[0024] Fig. 9 It is a first structural schematic diagram of a movable supporting structure of an acoustic laboratory that can be moved and quickly assembled and disassembled for use according to the present invention;

[0025] Fig.10 A second structural schematic diagram of a movable supporting structure of an acoustic laboratory that can be moved and quickly assembled and disassembled for use according to the present invention;

[0026] Fig.11 It is a structural schematic diagram of a second external frame of an acoustic laboratory that can be moved and quickly assembled and disassembled for use according to the present invention;

[0027] Fig.12 The present invention is a kind of acoustic laboratory that can be moved and quickly assembled and disassembled. Fig.11 A local enlarged view of the C region;

[0028] Fig.13 It is a structural schematic diagram of a base of an acoustic laboratory that can be moved and quickly assembled and disassembled for use according to the present invention;

[0029] Fig.14 The present invention is a kind of acoustic laboratory that can be moved and quickly assembled and disassembled. Fig.11 A local enlarged view of the D region;

[0030] In the figure: 1. first external frame, 2. second external frame, 3. third external frame, 4. sound absorbing wedge, 5. room door, 6. cushion block, 7. universal wheel, 8. sliding bracket, 9. screw rod, 10. turntable, 11. sound insulation bottom plate, 12. first support rod, 13. sliding block, 14. second support rod, 15. third support rod, 16. fixed shaft block, 17. fixed rod, 18. motor, 19. base, 20. connecting rod, 21. pin cap, 22. spring, 23. first L-shaped rod, 24. second L-shaped rod, 25. first pin, 26. support pin, 27. screw barrel, 28. slider, 29. first pin groove, 30. coupling block, 31. latch pin, 32. second pin groove, 33. slide groove, 34. ring groove, 35. stop rod, 36. second pin.

[0031] like Figure 1-14As shown, a movable acoustic laboratory that can be quickly assembled and disassembled for use comprises a base 19, wherein the symmetrical ends of the base 19 are respectively detachably and rotatably connected with a pair of second external frames 2 and a third external frame 3, the upper end of the base 19 is provided with a sound insulation bottom plate 11, the upper end of the sound insulation bottom plate 11 is provided with a first external frame 1 drivingly connected to the second external frame 2, the upper end of the base 19 is provided with a driving structure that can synchronously drive the second external frame 2 and the third external frame 3 to a vertical splicing state, the lower end of the base 19 is provided with a supporting and moving structure matched with the driving and moving structure, the supporting and moving structure comprises a sliding bracket 8 that can move downward as the second external frame 2 and the third external frame 3 are synchronously driven and rotated, and a plurality of universal wheels 7 are evenly arranged on the sliding bracket 8.

[0032] When the present invention is in use, the second external frame 2 and the third external frame 3 are respectively rotated and set on the side of the base 19, and the driving and splicing structure is controlled to work, and the second external frame 2 and the third external frame 3 are driven to a vertical state, and the second external frame 2 and the third external frame 3 complete the splicing and forming around the sound insulation bottom plate 11. At the same time, when the second external frame 2 deflects upward, the first external frame 1 is driven to move upward, and the upper end wall of the second external frame 2 and the third external frame 3 is supported and connected to the lower end of the first external frame 1, and the splicing and forming of the upper end surface of the sound insulation bottom plate 11 is completed. The second external frame 2 and the third external frame 3 can be built simultaneously, so the acoustic laboratory can be built quickly, and because the second external frame 2 and the third external frame 3 are independently arranged, they can be disassembled and transported separately, which is convenient for relocation. At the same time, the mobile structure is supported, and the sliding bracket 8 drives the universal wheel 7 to move downward to support the acoustic laboratory, which is convenient for adjusting the overall position of the acoustic laboratory, and effectively solves the problem of the acoustic laboratory in the prior art that it is a one-time investment after being built in a fixed position, and cannot be relocated and reused, which greatly increases the use cost of the acoustic laboratory.

[0033] The driving and assembling structure also includes a motor 18 fixedly connected to the sound insulation bottom plate 11, a ring groove 34 is provided at the middle end of the base 19, a turntable 10 is rotatably connected in the ring groove 34, the output end of the motor 18 is connected to the turntable 10, a plurality of second pins 36 are evenly arranged at the non-center end of the turntable 10, a connecting rod 20 is rotatably connected to the second pin 36, a plurality of slide grooves 33 are evenly provided around the ring groove 34 on the base 19, a slider 28 is slidably connected in the slide groove 33, and the connecting rod 20 is rotatably connected to the slider 28 A second L-shaped rod 24 is also fixedly connected to the slider 28, and a first pin 25 is slidably connected to the inner wall of the second L-shaped rod 24. A pin cap 21 is provided at the upper end of the first pin 25, and a spring 22 connected to the first pin 25 is provided between the pin cap 21 and the second L-shaped rod 24. The second external frame 2 and the third external frame 3 are respectively provided with first L-shaped rods 23 corresponding to the first pin 25 at positions close to the base 19, and the upper ends of the pin caps 21 are respectively provided with sliding blocks 13 fixedly connected to the sound insulation bottom plate 11.

[0034] like Figure 5 and 6 As shown, the motor 18 is working, the output end of the motor 18 drives the turntable 10 to rotate in the annular groove 34, the turntable 10 drives the second pin 36 to rotate in a circle, the second pin 36 drives the connecting rod 20 to swing, and the connecting rod 20 drives the slider 28 to slide in the same distance and in the same direction in the sliding groove 33. Figure 7As shown, the slider 28 drives the second L-shaped rod 24 to slide, and the second L-shaped rod 24 drives the first pin 25 to slide. Since the lower end of the first pin 25 is arranged in the first L-shaped rod 23, the first pin 25 realizes the preliminary rotation of the second external frame 2 and the third external frame 3 by squeezing the first L-shaped rod 23. In order to ensure that the second external frame 2 and the third external frame 3 are driven to a vertical state, when the first pin 25 moves toward the center of the turntable 10 along with the second L-shaped rod 24, the pin cap 21 at the upper end of the first pin 25 will be squeezed by the sliding block 13, thereby driving the first pin 25 to slide down along the inner wall of the second L-shaped rod 24, and the first pin 25 is used to drive and press the first L-shaped rod 23 that has been initially tilted, so as to rotate the second external frame 2 and the third external frame 3 to a vertical state. The second external frame 2 and the third external frame 3 are driven to rotate to a vertical state to complete the splicing of the second external frame 2 and the third external frame 3 around the sound insulation base plate 11. It is simple and quick to achieve rapid construction around the sound insulation base plate 11. The spring 22 can reset the pin cap 21 to facilitate subsequent disassembly. Similarly, when the second external frame 2 and the third external frame 3 need to be disassembled, the turntable 10 can be controlled to rotate in the opposite direction, and the first pin column 25 moves along with the second L-shaped rod 24 away from the center of the turntable 10, gradually releasing the limit of the first pin column 25 on the first L-shaped rod 23, and the second external frame 2 and the third external frame 3 are reversely deflected to a lying state, and then the second external frame 2 and the third external frame 3 are disassembled.

[0035] Coupling blocks 30 are respectively provided at both ends of the second external frame 2 and the third external frame 3. Second pin grooves 32 adapted to the coupling blocks 30 are evenly opened on the base 19. A pin 31 is coaxially inserted between the coupling block 30 and the second pin groove 32. A stop rod 35 is provided at one end of the pin 31.

[0036] like Fig.13 and 14 As shown, when the second external frame 2 and the third external frame 3 are assembled on the base 19, the second pin grooves 32 on the second external frame 2 and the third external frame 3 are respectively inserted into the coupling block 30, and the latch 31 is inserted into the second pin groove 32 and the coupling block 30, so that the second external frame 2 and the third external frame 3 are rotatably arranged around the base 19, and the blocking rod 35 is arranged at one end of the latch 31, which can facilitate the pulling out of the latch 31, so as to realize the disassembly of the second external frame 2 and the third external frame 3.

[0037] The two ends of the second external frame 2 are rotatably connected with the first support rod 12, and the end of the first support rod 12 is provided with a first pin groove 29. A pair of fixed shaft blocks 16 are respectively provided on both sides of the lower end of the first external frame 1, and the fixed shaft blocks 16 are provided with support pins 26 adapted to the first pin groove 29. The lower end of the first external frame 1 is rotatably connected with the third support rod 15, and one end of the third support rod 15 is rotatably connected with the second support rod 14, and one end of the second support rod 14 is rotatably set on the sound insulation bottom plate 11.

[0038] like Figure 1 and 8 As shown in 11 and 12, when the second external frame 2 is driven to rotate and splice upward, the first struts 12 at both ends can be driven to swing synchronously, and the first pin groove 29 of the first strut 12 is preferentially placed on the strut pin 26 at the lower end of the first external frame 1, and the fixed shaft block 16 supports and fixes the strut pin 26. When the first strut 12 swings upward, it can provide an upward driving force for the first external frame 1 through the supporting effect with the strut pin 26. The second strut 14 and the third strut 15 are rotatably connected at one end. When the first external frame 1 moves upward, the angle between the second strut 14 and the third strut 15 becomes larger. The second strut 14 and the third strut 15 are used to limit the movement of the first external frame 1, thereby ensuring the vertical up and down movement of the first external frame 1.

[0039] The supporting movable structure also includes a screw rod 9 coaxially fixedly connected to the turntable 10, a screw barrel 27 threadedly connected to the screw rod 9 is fixedly connected to the sliding bracket 8, and pads 6 fixedly connected to the base 19 are respectively provided at both ends of the sliding bracket 8.

[0040] like Figure 2 and 10 As shown, when the turntable 10 rotates, the screw rod 9 is driven to rotate. During the rotation of the screw rod 9, the screw rod 9 is threadedly engaged with the screw barrel 27 on the inner wall of the sliding bracket 8, thereby driving the sliding bracket 8 to slide along the axial direction of the screw rod 9. The sliding bracket 8 drives the universal wheel 7 at the lower end to move downward, and the universal wheel 7 protrudes to the pad 6. The universal wheel 7 is used to support and move the acoustic laboratory.

[0041] A plurality of fixing rods 17 fixedly connected to the sound insulation bottom plate 11 are evenly arranged on the base 19 .

[0042] like Figure 5 As shown, the sound insulation base plate 11 is fixed on the base 19 by using the fixing rod 17 .

[0043] The first external frame 1 , the second external frame 2 and the third external frame 3 are respectively provided with sound absorbing wedges 4 , and the third external frame 3 is provided with a chamber door 5 .

[0044] like Figure 1 and4 As shown, the door 5 allows easy access to the completed acoustic laboratory. The sound-absorbing wedge 4 is made of formaldehyde-free glass wool, which is made into a conical or wedge-shaped sound-absorbing body to absorb the sound in the acoustic laboratory.

[0045] The working process of the present invention is as follows: when the present invention is in use, when the second external frame 2 and the third external frame 3 are assembled on the base 19, the second pin grooves 32 on the second external frame 2 and the third external frame 3 are respectively inserted into the coupling block 30, and the latch 31 is inserted into the second pin groove 32 and the coupling block 30, so that the second external frame 2 and the third external frame 3 are rotatably arranged around the base 19.

[0046] The motor 18 works, and the output end of the motor 18 drives the turntable 10 to rotate in the annular groove 34, and the turntable 10 drives the second pin 36 to rotate in a circle, and the second pin 36 drives the connecting rod 20 to swing, and the connecting rod 20 drives the slider 28 to slide in the same distance and in the same direction in the sliding groove 33. Figure 7 As shown, the slider 28 drives the second L-shaped rod 24 to slide, and the second L-shaped rod 24 drives the first pin 25 to slide. Since the lower end of the first pin 25 is arranged in the first L-shaped rod 23, the first pin 25 realizes the preliminary rotation of the second external frame 2 and the third external frame 3 by squeezing the first L-shaped rod 23. In order to ensure that the second external frame 2 and the third external frame 3 are driven to a vertical state, when the first pin 25 moves toward the center of the turntable 10 along with the second L-shaped rod 24, the pin cap 21 at the upper end of the first pin 25 will be squeezed by the sliding block 13, thereby driving the first pin 25 to slide down along the inner wall of the second L-shaped rod 24, and the first pin 25 is used to drive and press the first L-shaped rod 23 that has been initially tilted, so as to rotate the second external frame 2 and the third external frame 3 to a vertical state. The second external frame 2 and the third external frame 3 are driven to rotate to a vertical state to complete the splicing of the second external frame 2 and the third external frame 3 around the sound insulation base plate 11. It is simple and quick to achieve rapid construction around the sound insulation base plate 11. The spring 22 can reset the pin cap 21 to facilitate subsequent disassembly. Similarly, when the second external frame 2 and the third external frame 3 need to be disassembled, the turntable 10 can be controlled to rotate in the opposite direction, and the first pin column 25 moves along with the second L-shaped rod 24 away from the center of the turntable 10, gradually releasing the limit of the first pin column 25 on the first L-shaped rod 23, and the second external frame 2 and the third external frame 3 are reversely deflected to a lying state, and then the second external frame 2 and the third external frame 3 are disassembled.

[0047] At the same time, when the second external frame 2 is driven to rotate and splice upward, the first support rods 12 at both ends can be driven to swing synchronously, and the first pin groove 29 of the first support rod 12 is preferentially placed on the support pin 26 at the lower end of the first external frame 1, and the fixed shaft block 16 supports and fixes the support pin 26. When the first support rod 12 swings upward, it can provide an upward driving force for the first external frame 1 through the support effect of the support pin 26. The second support rod 14 is rotatably connected to one end of the third support rod 15. When the first external frame 1 moves upward, the second support rod 14 is connected to the third support rod 15. The angle between 14 and the third support rod 15 becomes larger, and the second support rod 14 and the third support rod 15 are used to limit the movement of the first external frame 1, ensuring that the first external frame 1 moves vertically upward, and completing the splicing and forming of the upper end surface of the sound insulation base plate 11. Since the first external frame 1 and the second external frame 2 and the third external frame 3 can be built simultaneously, the acoustic laboratory can be quickly built, and since the second external frame 2 and the third external frame 3 are independently arranged, they can be disassembled and transported separately, which is convenient for relocation.

[0048] At the same time, the rotation of the turntable 10 drives the screw 9 to rotate. During the rotation of the screw 9, the screw 9 cooperates with the thread of the screw barrel 27 on the inner wall of the sliding bracket 8 to drive the sliding bracket 8 to slide along the axial direction of the screw 9. The sliding bracket 8 drives the universal wheel 7 at the lower end to move downward, and the universal wheel 7 protrudes to the pad 6. The universal wheel 7 is used to support and move the acoustic laboratory, which effectively solves the problem of the acoustic laboratory in the prior art that it is a one-time investment after being built in a fixed position and cannot be moved or reused, which greatly increases the cost of using the acoustic laboratory.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A movable acoustic laboratory that can be quickly assembled and disassembled, comprising a base (19), characterized in that: The symmetrical ends of the base (19) are respectively detachably and rotatably connected to a pair of second external frames (2) and a third external frame (3); the upper end of the base (19) is provided with a sound insulation bottom plate (11); the upper end of the sound insulation bottom plate (11) is provided with a first external frame (1) drivingly connected to the second external frame (2); the upper end of the base (19) is provided with a driving structure capable of synchronously driving the second external frame (2) and the third external frame (3) to a vertically spliced ​​state; the lower end of the base (19) is provided with a driving structure capable of synchronously driving the second external frame (2) and the third external frame (3) to a vertically spliced ​​state; The supporting movable structure cooperates with the assembly structure, the supporting movable structure comprising a sliding bracket (8) that can move downward as the second external frame (2) and the third external frame (3) are driven to rotate synchronously, a plurality of universal wheels (7) are evenly arranged on the sliding bracket (8), the driving assembly structure also comprises a motor (18) fixedly connected to the sound insulation bottom plate (11), a ring groove (34) is formed at the middle end of the base (19), a turntable (10) is rotatably connected in the ring groove (34), and the output end of the motor (18) is connected to the turntable (10). The rotating disk (10) is connected to the rotating disk (10), and a plurality of second pins (36) are evenly arranged at the non-center end of the rotating disk (10), and a connecting rod (20) is rotatably connected to the second pins (36). A plurality of sliding grooves (33) are evenly arranged around the annular groove (34) on the base (19), and a slider (28) is slidably connected in the sliding groove (33). The connecting rod (20) is rotatably connected to the slider (28), and a second L-shaped rod (24) is fixedly connected to the slider (28), and a second L-shaped rod (24) is slidably connected to the inner wall of the second L-shaped rod (24). A first pin (25), a pin cap (21) is arranged at the upper end of the first pin (25), a spring (22) sleeved and connected to the first pin (25) is arranged between the pin cap (21) and the second L-shaped rod (24), the second external frame (2) and the third external frame (3) are respectively provided with a first L-shaped rod (23) corresponding to the first pin (25) at a position close to the base (19), and a sliding block (13) fixedly connected to the sound insulation bottom plate (11) is respectively arranged at the upper end of the pin cap (21).

2. According to claim 1, a movable and quick-to-assemble and disassemble acoustic laboratory is characterized by: The second external frame (2) and the third external frame (3) are respectively provided with second pin grooves (32), the base (19) is evenly provided with coupling blocks (30) adapted to the second pin grooves (32), the coupling block (30) and the second pin groove (32) are coaxially inserted with a latch (31), and a stop rod (35) is provided at one end of the latch (31).

3. According to claim 2, a movable and quickly assembleable acoustic laboratory is characterized by: The two ends of the second external frame (2) are rotatably connected to the first support rod (12), and the end of the first support rod (12) is provided with a first pin groove (29). A pair of fixed shaft blocks (16) are respectively provided on both sides of the lower end of the first external frame (1), and the fixed shaft blocks (16) are provided with support pins (26) matched with the first pin groove (29). The lower end of the first external frame (1) is rotatably connected to the third support rod (15), and one end of the third support rod (15) is rotatably connected to the second support rod (14), and one end of the second support rod (14) is rotatably set on the sound insulation bottom plate (11).

4. According to claim 1, a movable and quickly assembleable acoustic laboratory is characterized by: The supporting movable structure further comprises a screw rod (9) coaxially fixedly connected to the rotating disk (10); a screw barrel (27) threadedly connected to the screw rod (9) is fixedly connected to the sliding bracket (8); and pads (6) fixedly connected to the base (19) are respectively provided at both ends of the sliding bracket (8).

5. According to claim 1, a movable and quickly assembleable acoustic laboratory is characterized by: A plurality of fixing rods (17) fixedly connected to the sound insulation bottom plate (11) are evenly arranged on the base (19).

6. According to claim 1, a movable and quickly assembleable acoustic laboratory is characterized by: The first external frame (1), the second external frame (2) and the third external frame (3) are respectively provided with sound absorbing wedges (4), and the third external frame (3) is provided with a chamber door (5).

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