Sound reflecting cover device with multiple storage functions

Abstract

The utility model discloses a sound reflecting cover device with multiple storage functions, and belongs to the technical field of stage equipment. The utility model discloses a sound reflecting cover device with multiple storage functions. The sound reflecting cover device comprises a sound reflecting cover fixing unit, a lifting mechanism and a sound reflecting cover lifting unit, the sound reflecting cover lifting unit is connected with the sound reflecting cover fixing unit through a lifting mechanism; the sound reflecting cover lifting unit performs reciprocating motion of lifting and rotating relative to the sound reflecting cover fixing unit through a lifting mechanism; a power input end is arranged at the end part of the lower end of the lifting mechanism, so that an external driving assembly drives the lifting mechanism to operate through the power input end; through the arrangement, lifting and storage of the sound reflecting cover can be directly driven through an external driving device.

Description

Technical Field

[0001] This utility model belongs to the field of stage equipment technology, and more specifically, relates to a soundproof cover device with multiple storage functions. Background Technology

[0002] During the installation of acoustic reflectors, there can be some interference between the top of the reflector side panels and the structural beams of the stage roof. Sometimes, to prevent interference, a portion of the reflector with interference is disassembled and stored, and then reinstalled when needed. Due to limited storage space in theaters, for ease of storage, most acoustic reflector side panels currently use a lifting mechanism, storing the detachable parts at a height. However, current technology generally uses electric drive systems for these lifting devices, which are complex in structure, have high manufacturing and maintenance costs, and are highly dependent on the power supply environment. In the event of a power outage or absence, the acoustic reflector will not be able to lift or lower properly, seriously affecting its practicality and safety. Furthermore, the electric lifting mechanism requires high technical skills to maintain, and frequent maintenance or troubleshooting further increases the theater's operating costs.

[0003] Therefore, there is an urgent need to propose a sound reflector device with lifting function that is simple in structure, flexible in driving method, highly adaptable to the use environment and low in maintenance cost, so as to solve the above-mentioned problems in the existing technology and improve the practicality and reliability of the sound reflector. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sound reflector device with multiple storage functions, which can realize the lifting and lowering and storage of the sound reflector driven by an external drive device.

[0005] This utility model discloses a sound reflector device with multiple storage functions, including a sound reflector fixing unit, a lifting mechanism, and a sound reflector lifting unit; the sound reflector lifting unit is installed and connected to the sound reflector fixing unit through the lifting mechanism; the sound reflector lifting unit performs reciprocating motion of lifting and rotating relative to the sound reflector fixing unit through the lifting mechanism; a power input end is provided at the lower end of the lifting mechanism so that an externally installed drive component can drive the lifting mechanism to operate through the power input end.

[0006] As a further improvement of this utility model, the sound reflector fixing unit includes a sound reflector fixing frame; a lifting mechanism is fixedly installed on the sound reflector fixing frame, and the lifting mechanism includes a linkage block, a lead screw and a support guide frame; one end of the linkage block is sleeved on the outer periphery of the lead screw and threadedly connected to the lead screw; the other end of the linkage block away from the lead screw is sleeved on the outer periphery of the support guide frame and rotatably connected to the support guide frame.

[0007] As a further improvement of this utility model, a transmission rod is fixedly installed at the bottom of both the lead screw and the support guide frame; the lower end of the transmission rod is the power input end.

[0008] As a further improvement of this utility model, a limiting block is fixedly installed on the outer periphery of the support guide frame, and a stepped layer is formed between the bottom of the limiting block and the support guide frame; a linkage block is installed below the limiting block; the stepped layer is erected on the top of the linkage block and abuts against the top of the linkage block; the support guide frame is mounted on the linkage block through the limiting block.

[0009] As a further improvement of this utility model, the sound reflector lifting unit includes a sound reflector lifting frame; the upper end of the support guide frame is fixedly connected to the sound reflector lifting frame, the rotation of the support guide frame drives the sound reflector lifting unit to rotate, and the up and down movement of the support guide frame drives the sound reflector lifting unit to move up and down synchronously.

[0010] As a further improvement of this utility model, the acoustic reflector fixing unit includes a lower acoustic reflector, which is installed on the outer side wall of one side of the acoustic reflector fixing frame; the lower acoustic reflector includes three lower acoustic reflector plates, which are spliced ​​together.

[0011] The acoustic reflector mounting bracket includes a main mounting bracket and two side mounting brackets; the side mounting brackets are rotatably mounted on both sides of the main mounting bracket; and three lower acoustic reflector plates are respectively mounted on the corresponding main mounting bracket and side mounting bracket.

[0012] As a further improvement of this utility model, the three lower sound reflectors are a first sound reflector, a second sound reflector, and a third sound reflector, with the first sound reflector installed between the second and third sound reflectors. Side plate support assemblies are provided between the first and third sound reflectors and between the first and second sound reflectors to control the unfolding and retraction of the corresponding sound reflectors.

[0013] As a further improvement of this utility model, the side plate support assembly includes a locking support seat, a rotating support seat, and a slide rod; one end of the slide rod is rotatably connected to the rotating support seat; the other end of the slide rod passes through the locking support seat and is slidably connected to the locking support seat; the rotating support seat is fixedly connected to the side wall of the corresponding reflector plate facing the reflector cover fixing frame; the locking support seat is fixedly connected to the reflector cover fixing frame.

[0014] As a further improvement of this utility model, a door assembly is installed at the lower end of the soundproof cover fixing unit for the entry and exit of staff; the door assembly is equipped with a magnetic switch, which controls the closing of the door assembly; the door assembly includes a magnet, an inner magnet fixing pin, and an outer magnet fixing seat.

[0015] The magnet includes an inner magnet and an outer magnet; one end of the inner magnet fixing pin is fixedly connected to the inner magnet, and the end of the inner magnet fixing pin away from the inner magnet is fixedly connected to the door panel opened at the lower end of the corresponding lower sound reflector; one end of the outer magnet fixing seat has an installation opening, and the outer magnet is fixedly installed in the installation opening; the outer magnet fixing seat is fixedly connected to the corresponding sound reflector fixing bracket.

[0016] As a further improvement of this utility model, it also includes a sound-reflecting cover trolley; the sound-reflecting cover fixing unit is installed on the sound-reflecting cover trolley, and the sound-reflecting cover is moved by the sound-reflecting cover trolley.

[0017] The soundproof cover trolley includes a first roller group, a second roller group, a front drive mechanism, and a rear drive mechanism; the front drive mechanism is mounted on the first roller group, and the rear drive mechanism is mounted on the second roller group.

[0018] The front drive mechanism is installed at the bottom of the reflector mounting bracket on one side near the reflector, and controls the horizontal position of the reflector mounting unit on this side through the front drive mechanism;

[0019] The rear drive mechanism is installed on the bottom of the acoustic reflector mounting bracket on the side away from the acoustic reflector, and controls the horizontal position of the acoustic reflector mounting unit on this side through the rear drive mechanism.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] To avoid structural interference and improve space utilization efficiency, a lifting mechanism, a sound reflector fixing unit, and a sound reflector lifting unit are installed. Power is transmitted through the power input end to drive the lifting mechanism. The sound reflector lifting unit moves back and forth relative to the sound reflector fixing unit through the lifting mechanism, so that the sound reflector can be stored in the air when not in use, avoiding interference with the structural beams of the stage roof, and effectively improving the utilization rate of the theater space and the flexibility of the acoustic layout.

[0022] Adopting a non-electric drive design, this device is highly adaptable. By setting up a lifting mechanism with a power input end, it can connect to various external drive components, such as handheld power tools, manual devices, and mechanical drives. It does not rely on a power source and is particularly suitable for use scenarios with no electricity or unstable power supply, thus broadening the scope of applicable environments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the acoustic shield device of this utility model in its stored state;

[0024] Figure 2 This is a schematic diagram of the raised state of the acoustic shield device of this utility model;

[0025] Figure 3 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the side plate support assembly structure of this utility model;

[0027] Figure 5 This is a top view of the structure of the acoustic shield device of this utility model in its raised and unfolded state;

[0028] Figure 6 This is a top view of the unfolded state of the acoustic shield lifting unit of the acoustic shield device of this utility model when it is not rotated;

[0029] Figure 7 This is a schematic diagram of the magnetic switch structure of this utility model;

[0030] Figure 8 This is a top view of the structure of the acoustic shield device of this utility model in the closed state;

[0031] Figure 9 This is a schematic diagram of the front drive mechanism of the acoustic shield trolley of this utility model;

[0032] Figure 10 This is a schematic diagram of the rear drive mechanism of the acoustic shield trolley of this utility model.

[0033] Explanation of the labels in the diagram:

[0034] 1. Sound reflector fixing unit; 2. Lifting mechanism; 21. Upper guide seat; 22. Linkage block; 23. Screw; 24. Support guide frame; 25. Lower guide seat; 4. Door assembly; 5. Sound reflector trolley; 6. Sound reflector lifting unit; 7. Side plate support assembly; 71. Locking support seat; 72. Locking pin; 73. Rotating support seat; 74. Slide rod; 75. Rotating handle; 8. Magnetic switch; 81. Magnet; 82. Inner magnet fixing pin; 83. Outer magnet fixing seat; 91. Lifting assembly; 92. Adjusting screw; 93. Handwheel; 94. Support seat; 95. First roller group; 101. Steering handle; 102. Side plate counterweight; 103. Screw lifting mechanism; 104. Second roller group; 11. Power input end; 12. Pin assembly; 131. First sound reflector; 132. Second sound reflector; 133. Third sound reflector. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0036] For specific implementation examples, please refer to: Figure 1-10A soundproof cover device with multiple storage functions includes a soundproof cover fixing unit 1, a lifting mechanism 2 and a soundproof cover lifting unit 6; the soundproof cover lifting unit 6 is installed and connected to the soundproof cover fixing unit 1 through the lifting mechanism 2; the soundproof cover lifting unit 6 performs reciprocating motion of lifting and rotating relative to the soundproof cover fixing unit 1 through the lifting mechanism 2.

[0037] The lower end of the lifting mechanism 2 is provided with a power input end 11, so that an externally installed drive component can drive the lifting mechanism 2 through the power input end 11.

[0038] Optionally, the externally configured drive component can be a handheld power tool.

[0039] The acoustic reflector fixing unit 1 includes a lower acoustic reflector and an acoustic reflector fixing frame, with the lower acoustic reflector installed on the outer side wall of one side of the acoustic reflector fixing frame; the acoustic reflector lifting unit 6 includes an upper acoustic reflector and an acoustic reflector lifting frame, with the upper acoustic reflector installed on the outer side wall of one side of the acoustic reflector lifting frame.

[0040] Optionally, the acoustic shield mounting bracket includes a main mounting bracket and two side mounting brackets; the side mounting brackets are rotatably mounted on both sides of the main mounting bracket.

[0041] Optionally, the acoustic shield lifting frame includes a main lifting frame and two side lifting frames; the side lifting frames are respectively rotatably mounted on both sides of the main lifting frame.

[0042] The lifting mechanism 2 is fixedly mounted on the reflector cover mounting frame. The lifting mechanism 2 includes a linkage block 22, a lead screw 23, and a support guide frame 24. One end of the linkage block 22 is sleeved on the outer periphery of the lead screw 23 and threadedly connected to the lead screw 23. The other end of the linkage block 22 away from the lead screw 23 is sleeved on the outer periphery of the support guide frame 24 and rotatably connected to the support guide frame 24. The support guide frame 24 can reciprocate relative to the linkage block 22.

[0043] Preferably, a limiting block is fixedly installed on the outer periphery of the support guide frame 24, and a step layer is formed between the bottom of the limiting block and the support guide frame 24; the linkage block 22 is installed below the limiting block; the step layer is erected on the top of the linkage block 22 and abuts against the top of the linkage block 22; the support guide frame 24 is mounted on the linkage block 22 through the limiting block.

[0044] The upper end of the support guide frame 24 is fixedly connected to the reflector lifting frame. The rotation of the support guide frame 24 drives the reflector lifting unit 6 to rotate. The up and down movement of the support guide frame 24 drives the reflector lifting unit 6 to move up and down synchronously.

[0045] Preferably, the support guide frame 24 located above the limiting block and the acoustic shield lifting frame are fixedly connected.

[0046] The lifting mechanism 2 also includes an upper guide seat 21 and a lower guide seat 25; the support guide frame 24 is rotatably connected to the upper guide seat 21 and the lower guide seat 25 respectively; the support guide frame 24 is installed and connected to the sound reflector fixing frame through the upper guide seat 21 and the lower guide seat 25; the lower guide seat 25 is covered on the outer periphery of the support guide frame 24 below the linkage block 22 and is fixedly connected to the sound reflector fixing frame; the upper guide seat 21 is located on the outer periphery of the support guide frame 24 above the limit block and is fixedly connected to the sound reflector fixing frame.

[0047] The upper and lower ends of the lead screw 23 are respectively provided with auxiliary fixing parts, which are fixedly connected to the reflector cover fixing frame. The lead screw is installed and connected to the reflector cover fixing frame through the auxiliary fixing parts.

[0048] Preferably, the lead screw 23 and the support guide frame 24 are arranged in parallel.

[0049] The lower acoustic reflector includes three lower acoustic reflector panels, which are spliced ​​together. The three lower acoustic reflector panels are respectively installed on the corresponding main fixing frame and side fixing frame. Adjacent lower acoustic reflector panels are rotatably connected through the corresponding main fixing frame and side fixing frame.

[0050] The upper acoustic reflector consists of three upper acoustic reflector panels, which are spliced ​​together; two adjacent upper acoustic reflector panels are rotatably connected; the three upper acoustic reflector panels are respectively installed on the corresponding main lifting frame and side lifting frame.

[0051] The sound reflector lifting unit 6 is mounted on top of the sound reflector fixing unit 1. Three upper sound reflectors and three corresponding lower sound reflectors are installed to form three sound reflectors. When in use, the three sound reflectors can be opened to form a sound reflector mode. When not in use, the three sound reflectors can be closed for storage to reduce space occupation.

[0052] The three lower acoustic reflectors are a first acoustic reflector 131, a second acoustic reflector 132, and a third acoustic reflector 133. The first acoustic reflector 131 is installed between the second acoustic reflector 132 and the third acoustic reflector 133. Side plate support assemblies 7 are provided between the first acoustic reflector 131 and the third acoustic reflector 133, and between the first acoustic reflector 131 and the second acoustic reflector 132, to control the unfolding and retraction of the corresponding acoustic reflectors.

[0053] Preferably, the first reflector plate 131 is fixedly disposed on the outer side wall of the main fixing frame, and the second reflector plate 132 and the third reflector plate 133 are respectively disposed on the outer side wall of the corresponding side fixing frame, with the first reflector plate 131, the second reflector plate 132 and the third reflector plate 133 located on the same side of the reflector cover fixing frame.

[0054] The side plate support assembly 7 includes a locking support 71, a rotating support 73, and a slide rod 74; one end of the slide rod 74 is rotatably connected to the rotating support 73; the other end of the slide rod 74 passes through the locking support 71 and is slidably connected to the locking support 71; the rotating support 73 is fixedly connected to the side wall of the corresponding reflector plate facing the reflector cover fixing frame; the locking support 71 is fixedly connected to the reflector cover fixing frame.

[0055] Preferably, the rotating support 73 of the side plate support assembly 7 between the first reflector plate 131 and the third reflector plate 133 is installed and connected to the third reflector plate 133; the rotating support 73 of the side plate support assembly 7 between the first reflector plate 131 and the second reflector plate 132 is installed and connected to the second reflector plate 132.

[0056] Optionally, a locking pin 72 is installed on the locking support 71. One end of the locking pin 72 passes through the outer periphery of the locking support 71 and abuts against the slide bar 74. The locking pin 72 is threadedly connected to the locking support 71. A rotating handle 75 is installed on the end of the locking pin 72 away from the locking support 71. The position of the locking pin 72 relative to the slide bar 74 is controlled by rotating the handle 75, so as to control the locking and unlocking of the slide bar 74.

[0057] When the slide bar 74 needs to be locked, rotate the rotary handle 75 to continuously insert the end of the locking pin 72 away from the rotary handle 75 into the locking support seat 71, and push the slide bar 74 against it so that the slide bar 74 can no longer slide, thereby locking the slide bar 74 and locking the second reflector plate 132 and the third reflector plate 133 respectively.

[0058] When the slide bar 74 needs to be unlocked, that is, when the slide bar 74 needs to slide, rotate the rotary handle 75 to move the end of the locking pin 72 away from the rotary handle 75 away from the slide bar 74, so that the part of the slide bar 74 inside the locking support 71 is unobstructed and can slide, thereby unlocking the slide bar 74, thereby unlocking the second reflector plate 132 and the third reflector plate 133 respectively, so that the second reflector plate 132 and the third reflector plate 133 can rotate.

[0059] A door assembly 4 is installed at the lower end of the soundproof cover fixing unit 1 for actors and other staff to enter and exit; the door assembly 4 is equipped with a magnetic switch 8, which controls the closing of the door assembly 4; the door assembly 4 includes a magnet 81, an inner magnet fixing pin 82 and an outer magnet fixing seat 83.

[0060] Magnet 81 includes an inner magnet and an outer magnet; one end of the inner magnet fixing pin 82 is fixedly connected to the inner magnet, and the end of the inner magnet fixing pin 82 away from the inner magnet is fixedly connected to the door panel opened at the lower end of the corresponding lower sound reflector; one end of the outer magnet fixing seat 83 has an installation opening, and the outer magnet is fixedly installed in the installation opening; the outer magnet fixing seat 83 is fixedly connected to the corresponding lower sound reflector cover fixing bracket; the door panel and the sound reflector cover fixing bracket are installed and connected by the attraction between the inner magnet and the outer magnet to achieve the purpose of closing the door panel.

[0061] The inner and outer magnets are opposite magnetic poles on opposite sides.

[0062] Optionally, the door assembly 4 is located on one side of the side fixing bracket; the external magnet fixing seat 83 is fixedly connected to the corresponding side fixing bracket.

[0063] Preferably, a transmission rod is fixedly installed at the bottom of both the lead screw and the support guide frame 24; the lower end of the transmission rod is the power input end 11, which is the power input end of the lifting mechanism 2; the externally installed power component controls the operation of the transmission rod through the power input end 11, thereby driving the operation of the corresponding lead screw and support guide frame 24, that is, the externally installed power component controls the operation of the transmission rod through the power input end 11, thereby controlling the operation of the lifting mechanism 2.

[0064] The acoustic shielding device also includes several pin assemblies 12;

[0065] When the acoustic shield lifting unit 6 is in the raised state, the pin assemblies 12 are arranged at intervals at the connection between the acoustic shield lifting frame and the acoustic shield fixing frame. One end of the pin assembly 12 is installed and connected to the bottom of the acoustic shield lifting frame, and the other end of the pin assembly 12 is installed and connected to the acoustic shield fixing frame. The acoustic shield lifting frame is installed and connected to the acoustic shield fixing frame through the pin assembly 12.

[0066] When the acoustic reflector lifting unit 6 is switched to the storage state, the lifting mechanism 2 is first driven through the power input end 11, so that the acoustic reflector lifting unit 6 rises a small distance to open the latch assembly 12. Then, through the power input end 11 of the support guide frame 24, the support guide frame 24 is rotated to drive the acoustic reflector lifting unit 6 to rotate 180 degrees. Then, the power input end 11 is driven again to lower the acoustic reflector lifting unit 6 to the storage position.

[0067] Optionally, the acoustic reflector device also includes an acoustic reflector trolley 5; the acoustic reflector fixing unit 1 is installed on the acoustic reflector trolley 5, and the acoustic reflector is moved by the acoustic reflector trolley 5.

[0068] The soundproof cover trolley 5 includes a first roller group 95, a second roller group 104, a front drive mechanism, and a rear drive mechanism; the front drive mechanism is mounted on the first roller group 95, and the rear drive mechanism is mounted on the second roller group 104.

[0069] The front drive mechanism is installed on the bottom of the reflector mounting bracket on one side near the reflector, and controls the horizontal position of the reflector mounting unit 1 on this side through the front drive mechanism;

[0070] The rear drive mechanism is installed on the bottom of the acoustic reflector mounting bracket on the side away from the acoustic reflector, and controls the horizontal position of the acoustic reflector mounting unit 1 on this side through the rear drive mechanism.

[0071] The front drive mechanism includes a lifting assembly 91 and a support base 94. A connecting rod is installed at the bottom of the lifting assembly 91, and the lifting assembly 91 is connected to the first roller group 95 via the connecting rod. The support base 94 is installed at the bottom of the lifting assembly 91 and is located outside the first roller group 95. Adjusting screws 92 are installed on the top of the lifting assembly 91, and the lifting is adjusted by adjusting the screws 92. A handwheel 93 is provided above the support base, and the support base 94 is adjusted by adjusting the handwheel 93.

[0072] A steering handle 101 is fixedly installed on the second roller group 104; the rear drive mechanism includes a side plate counterweight 102 and a screw lifting mechanism 103; the screw lifting mechanism 103 is installed on the steering handle 101, and the side plate counterweight 102 is installed on the top of the screw lifting mechanism 103; the lifting of the side plate counterweight 102 is adjusted by adjusting the screw lifting mechanism 103.

[0073] The acoustic reflector device consists of a lifting mechanism, a fixed unit, and a lifting unit. Power is transmitted through the power input to drive the lifting mechanism. The lifting unit moves back and forth relative to the fixed unit, allowing the acoustic reflector to be stored at a height when not in use, avoiding interference with the structural beams of the stage roof. This effectively improves the utilization rate of the theater space and the flexibility of the acoustic layout, preventing structural interference and enhancing space utilization efficiency.

[0074] Adopting a non-electric drive design, this device is highly adaptable. By setting up a lifting mechanism with a power input end, it can connect to various external drive components, such as handheld power tools, manual devices, and mechanical drives. It does not rely on a power source and is particularly suitable for use scenarios with no electricity or unstable power supply, thus broadening the scope of applicable environments.

[0075] The side fixing frame and the main fixing frame are rotatably connected, as are the main lifting frame and the side lifting frame, so that the acoustic shield can be easily opened and closed, making the operation flexible and efficient.

[0076] With a simple structure and stable and reliable drive, the lifting mechanism adopts a screw-driven structure, in conjunction with a linkage block and a support guide frame. Power is transmitted through the power input end, driving the screw in the lifting mechanism to rotate. The linkage block then drives the support guide frame, ultimately causing the acoustic reflector lifting unit to move up and down. Both the screw and the support guide frame are equipped with power input ends. The power input end of the screw enables the acoustic reflector lifting unit to move up and down, while the power input end of the support guide frame rotates the support guide frame, enabling the acoustic reflector lifting unit to rotate. This achieves smooth lifting and rotation of the acoustic reflector lifting unit, with high transmission efficiency, stable structure, and avoidance of jamming or misalignment problems.

[0077] Easy to maintain and reduce maintenance costs. Due to the adoption of a mechanical transmission structure, the components are highly standardized and easy to maintain, which significantly reduces the overall maintenance frequency and maintenance costs of the equipment and improves the stability and economy of equipment operation.

[0078] By incorporating door components and magnetic switches, staff can easily enter and exit the soundproof enclosure, ensuring safe and convenient operation.

[0079] By setting up a reflector trolley, the entire device can be easily moved and quickly deployed. In addition, the front and rear drive mechanisms can be used to flexibly control the positioning of the reflector. By adjusting the adjusting screw and the spiral lifting mechanism, the mounting surfaces can be placed on the same plane, while ensuring that the reflector is in a vertical position, achieving the best installation state of the reflector and avoiding tilting.

[0080] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A retrodirective reflector device having multiple storage functions, characterized by: It includes a sound reflector fixing unit (1), a lifting mechanism (2) and a sound reflector lifting unit (6); the sound reflector lifting unit (6) is installed and connected to the sound reflector fixing unit (1) through the lifting mechanism (2); the sound reflector lifting unit (6) performs reciprocating motion of lifting and rotating relative to the sound reflector fixing unit (1) through the lifting mechanism (2); the lower end of the lifting mechanism (2) is provided with a power input end (11) so that the externally installed drive component drives the lifting mechanism (2) to run through the power input end (11).

2. The anti-backlash device with multiple storage functions according to claim 1, characterized in that: The sound reflector fixing unit (1) includes a sound reflector fixing frame; the lifting mechanism (2) is fixedly installed on the sound reflector fixing frame. The lifting mechanism (2) includes a linkage block (22), a lead screw (23) and a support guide frame (24); one end of the linkage block (22) is sleeved on the outer periphery of the lead screw (23) and threadedly connected to the lead screw (23); the other end of the linkage block (22) away from the lead screw (23) is sleeved on the outer periphery of the support guide frame (24) and rotatably connected to the support guide frame (24).

3. The anti-backlash device with multiple storage functions according to claim 2, characterized in that: The bottom of both the lead screw and the support guide frame (24) is fixedly equipped with a transmission rod; the lower end of the transmission rod is the power input end (11).

4. The anti-backlash device of claim 2, wherein: A limiting block is fixedly installed on the outer periphery of the support guide frame (24), and a step layer is formed between the bottom of the limiting block and the support guide frame (24); the linkage block (22) is installed below the limiting block; the step layer is installed on the top of the linkage block (22) and abuts against the top of the linkage block (22); the support guide frame (24) is mounted on the linkage block (22) through the limiting block.

5. The anti-backlash device of claim 2, wherein: The acoustic shield lifting unit (6) includes an acoustic shield lifting frame; the upper end of the support guide frame (24) is fixedly connected to the acoustic shield lifting frame, the rotation of the support guide frame (24) drives the acoustic shield lifting unit (6) to rotate, and the up and down movement of the support guide frame (24) drives the acoustic shield lifting unit (6) to move up and down synchronously.

6. The anti-backlash device with multiple storage functions according to claim 1, wherein: The acoustic reflector fixing unit (1) includes a lower acoustic reflector, which is installed on the outer side wall of one side of the acoustic reflector fixing frame; the lower acoustic reflector includes three lower acoustic reflector plates, which are spliced ​​together. The acoustic reflector mounting bracket includes a main mounting bracket and two side mounting brackets; the side mounting brackets are rotatably mounted on both sides of the main mounting bracket; and three lower acoustic reflector plates are respectively mounted on the corresponding main mounting bracket and side mounting bracket.

7. The device according to claim 6, wherein the device has a plurality of storage functions. The three lower acoustic reflectors are a first acoustic reflector (131), a second acoustic reflector (132), and a third acoustic reflector (133). The first acoustic reflector (131) is installed between the second acoustic reflector (132) and the third acoustic reflector (133). Side plate support components (7) are provided between the first acoustic reflector (131) and the third acoustic reflector (133), and between the first acoustic reflector (131) and the second acoustic reflector (132), to control the unfolding and retraction of the corresponding acoustic reflectors.

8. The device according to claim 7, wherein the device has a plurality of storage functions. The side plate support assembly (7) includes a locking support seat (71), a rotating support seat (73), and a slide rod (74); one end of the slide rod (74) is rotatably connected to the rotating support seat (73); the other end of the slide rod (74) passes through the locking support seat (71) and is slidably connected to the locking support seat (71); the rotating support seat (73) is fixedly connected to the side wall of the corresponding reflector plate facing the reflector cover fixing frame; the locking support seat (71) is fixedly connected to the reflector cover fixing frame.

9. The anti-backlash device of claim 5, wherein: A door assembly (4) is installed at the lower end of the soundproof cover fixing unit (1) for the entry and exit of staff; a magnetic switch (8) is installed on the door assembly (4) to control the closing of the door assembly (4); the door assembly (4) includes a magnet (81), an inner magnet fixing pin (82) and an outer magnet fixing seat (83). The magnet (81) includes an inner magnet and an outer magnet; one end of the inner magnet fixing pin (82) is fixedly connected to the inner magnet, and the end of the inner magnet fixing pin (82) away from the inner magnet is fixedly connected to the door panel opened at the lower end of the corresponding lower sound reflector; one end of the outer magnet fixing seat (83) is provided with an installation port, and the outer magnet is fixedly installed in the installation port; the outer magnet fixing seat (83) is fixedly connected to the corresponding sound reflector fixing bracket.

10. The anti-backlash device of claim 1, wherein: It also includes a reflector trolley (5); the reflector fixing unit (1) is installed on the reflector trolley (5) and the reflector is moved by the reflector trolley (5); The soundproof cover trolley (5) includes a first roller group (95), a second roller group (104), a front drive mechanism and a rear drive mechanism; the front drive mechanism is mounted on the first roller group (95) and the rear drive mechanism is mounted on the second roller group (104); The front drive mechanism is installed on the bottom of the reflector mounting bracket on one side near the reflector, and the horizontal position of the reflector mounting unit (1) on this side is controlled by the front drive mechanism. The rear drive mechanism is installed on the bottom of the reflector mounting bracket on the side away from the reflector, and controls the horizontal position of the reflector mounting unit (1) on this side through the rear drive mechanism.

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