A foldable stand for a sound device

Abstract

The application belongs to the technical field of sound equipment support, in particular to a foldable support for sound equipment, which comprises a first support frame, a rotating block rotatably connected to the outer wall of the first support frame, and a sliding plate slidably connected to the rotating block. The position and angle of the sliding plate are adjusted according to the height and position of multiple sound equipment, and the sliding plate is fixed and limited. Three sound equipment are fixed at the two ends of the first support frame and the sliding plate, which can reduce the floor space occupied by the sound equipment support, especially in limited space. The position of the sliding plate is adjusted, and the sound equipment at the two ends of the sliding plate can be placed in different positions. For example, when the sound equipment at the two ends of the sliding plate is placed in the center of the sliding plate, the distance between the two sound equipment and the first support frame is the same, and standard stereo sound is realized.

Description

Technical Field

[0001] This invention belongs to the field of speaker stand technology, specifically a foldable speaker stand. Background Technology

[0002] An audio system is an audio device composed of electrical components. It mainly achieves sound recording and playback through electrical energy conversion. Its core components include speakers, amplifiers, and mixing consoles. Different sound variations can be produced by different placement positions and heights of the audio system. In order to make it easier to use, an adapter stand is designed to support the audio system and adjust its placement position and height.

[0003] A Chinese patent with publication number CN221202719U discloses a portable speaker stand, including a vertical plate and a speaker. The upper and lower ends of the vertical plate are both connected to a horizontal plate via hinges. The horizontal plate can be folded inward, making it convenient to carry and store. After the horizontal plate is opened, the speaker can be adjusted up and down and its orientation along a fixed rope, improving the adaptability of the stand.

[0004] With the widespread use of speakers, they can be seen everywhere, whether outdoors, in shopping malls, or at home. While the portable folding stands mentioned above can adjust the height and orientation of speakers, making them ideal for home use, these stands are mainly suitable for supporting a single speaker. However, when multiple speakers need to be supported simultaneously for outdoor commercial performances, especially when speakers are located in different places, these folding stands are insufficient. An additional number of stands are needed to support multiple speakers, which can easily increase the floor space required, making it difficult to place them, especially in locations with limited space.

[0005] Therefore, the present invention provides a foldable stand for a speaker. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A foldable bracket for an audio device according to the present invention includes a first support frame; a rotating block is rotatably connected to the outer wall of the first support frame; a sliding plate is slidably connected to the rotating block; a plurality of first limiting rods are slidably connected to the inner wall of the first support frame through a first elastic element, and the plurality of first limiting rods are arranged in a ring; a plurality of limiting plates are fixed to both sides of the sliding plate, and the plurality of limiting plates are arranged opposite each other in pairs.

[0008] Preferably, a fixing rod is fixedly connected to the outer walls of both ends of the sliding plate; a second support frame is rotatably connected to the fixing rod; a plug plate is slidably connected to the inner wall of the fixing rod through a second elastic element; and a first bolt is threadedly connected to the inner wall of the fixing rod.

[0009] Preferably, the cross-sectional shape of the plug-in plate is U-shaped; the second support frame has multiple square slots, the plug-in plate corresponds to the square slots, and the multiple square slots are arranged in a ring.

[0010] Preferably, a sliding block is slidably connected to the inner wall of the sliding plate; a second limiting rod is slidably connected to the inside of the sliding block through a third elastic element; a plurality of limiting holes are provided on the sliding plate near the sliding block, and the diameter of the limiting holes corresponds to that of the second limiting rod; a first counterweight is fixedly connected to the outer wall of the sliding block.

[0011] Preferably, a third support frame is slidably connected to the first support frame; both the first and third support frames have threaded holes of the same diameter; and the inner walls of the first and third support frames are threaded with second bolts.

[0012] Preferably, a sliding cylinder is slidably connected to the third support frame; the inner walls of the first support frame, the third support frame, and the sliding cylinder are threaded with a third bolt; three support legs are hinged to the sliding cylinder; connecting plates are hinged to the support legs; a connecting block is fixed to the bottom end of the third support frame, and all three connecting plates are hinged to the connecting block.

[0013] Preferably, the second support frame has a hole; a hook is installed in the hole; and a steel wire rope is fixed to the bottom end of the hook.

[0014] Preferably, the outer wall of the third support frame is slidably connected to a fixed frame; a snap-fit ​​frame is inserted into the fixed frame; a pin is inserted into the fixed frame and the pin passes through the snap-fit ​​frame; the inner walls of the third support frame and the snap-fit ​​frame are threaded with fixing bolts; both ends of the fixed frame are rotatably connected to a winding device, and the end of the wire rope away from the hook is sleeved on the winding device.

[0015] Preferably, the bottom end of the connecting block is threadedly connected to a threaded rod; the bottom end of the threaded rod is fixedly connected to a second counterweight; the bottom end of the second counterweight is threadedly connected to a threaded leg; there are three threaded legs, and the bottom end of the threaded legs is a disc.

[0016] Preferably, the bottom end of the support leg is fixedly connected to an anti-slip sleeve; the anti-slip sleeve is fixedly connected to a plurality of anti-slip protrusions; the top ends of the first support frame and the second support frame are both fixedly connected to a square plate; threaded holes are provided at the four corners of the square plate.

[0017] The beneficial effects of this invention are as follows: 1. The foldable speaker stand of the present invention, through a sliding plate, adjusts the position and angle of the sliding plate according to the height and position requirements of multiple speakers, and fixes the sliding plate to a fixed position, fixing three speakers to the two ends of a first support frame and the sliding plate respectively. This allows multiple speakers to be assembled using the same foldable stand, reducing the floor space occupied by the speaker support, especially convenient for placement in spaces with limited space. By adjusting the position of the sliding plate, the speakers at both ends of the sliding plate can be placed in different positions. For example, when the sliding plate is centered, the two speakers assembled at both ends of the sliding plate are equidistant from the first support frame, achieving standard stereo sound (left-center-right). When the center of the sliding plate is shifted to the right, the distance between the speaker at the left end of the sliding plate and the first support frame is shorter than that at the right end of the sliding plate. The distance between the speakers and the first support frame achieves asymmetrical mid-frequency enhancement from center-center-right. When the center of the sliding plate is shifted to the left, the distance between the speakers mounted on the left end of the sliding plate and the first support frame is longer than the distance between the speakers on the right end of the sliding plate and the first support frame, achieving a left-center-center emphasis on the center sound field. By adjusting the angle of the sliding plate, the speakers at both ends of the sliding plate can be placed at different heights. For example, when the angle of the sliding plate is horizontal at both ends, the three speakers are placed side by side, presenting a horizontal layout. When the angle of the sliding plate is left-high and right-low, the height of the speakers on the left end of the sliding plate is higher than the speakers on the first support frame, which are higher than the speakers on the right end of the sliding plate, presenting an upper-middle-low layout with a high, mid, and low frequency distribution. When the angle of the sliding plate is left-low and right-high, the height of the speakers on the left end of the sliding plate is lower than the speakers on the first support frame, which are lower than the speakers on the right end of the sliding plate, presenting a lower-middle-upper layout with a reverse distribution of low, mid, and high frequencies.

[0018] 2. The foldable speaker stand of the present invention provides a stable triangular support for the third support frame when the three support legs are unfolded, improving the support effect for multiple speakers. After the three support legs are centered and close together, they are vertically folded and stored on the outer wall of the third support frame, making it easy to fold and store the three support legs. The threaded rod is threaded to the bottom end of the connecting block. The threaded rod can be threaded to adjust according to the different support heights of the three support legs, so that the second counterweight block is in close contact with the ground support. The second counterweight block, relying on its own weight and the ground support, can further improve the stability of the foldable stand and reduce the risk of the foldable stand shifting its center of gravity and falling. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the supporting leg in this invention; Figure 3 This is a schematic diagram of the structure of the first counterweight block in this invention; Figure 4 This is a schematic diagram of the rotating block in this invention; Figure 5 This is a schematic diagram of the plug-in plate in this invention; Figure 6 This is a schematic diagram of the structure of the second counterweight in this invention; Figure 7 This is a schematic diagram of the structure of the fixing frame in this invention.

[0021] In the diagram: 1. Support frame 1; 11. Rotating block; 12. Sliding plate; 13. Limiting rod 1; 14. Limiting plate; 2. Fixing rod; 21. Support frame 2; 22. Insert plate; 23. Bolt 1; 4. Sliding block; 41. Limiting rod 2; 42. Counterweight block 1; 5. Support frame 3; 51. Bolt 2; 52. Hook; 53. Wire rope; 54. Fixing frame; 55. Clip frame; 56. Pin; 57. Fixing bolt; 58. Winding device; 6. Sliding cylinder; 61. Bolt 3; 62. Support leg; 63. Connecting plate; 64. Connecting block; 7. Threaded rod; 71. Counterweight block 2; 8. Threaded leg; 9. Anti-slip sleeve. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 4As shown in the embodiment of the present invention, a foldable speaker stand includes a first support frame 1; a rotating block 11 is rotatably connected to the outer wall of the first support frame 1; a sliding plate 12 is slidably connected to the rotating block 11; a plurality of first limiting rods 13 are slidably connected to the inner wall of the first support frame 1 via a first elastic element, and the plurality of first limiting rods 13 are arranged in a ring; a plurality of limiting plates 14 are fixed to both sides of the sliding plate 12, and the plurality of limiting plates 14 are arranged opposite each other in pairs; when the foldable stand is used to support the speaker in outdoor commercial performances, the first support frame 1 serves as the main support of the foldable stand, and the initial state of the sliding plate 12 is that it folds perpendicular to the first support frame 1 after the rotating block 11 rotates, and the sliding plate 12 is folded and stored on one side of the first support frame 1. First, fix the first support frame 1 on the ground. Then, according to the height and position of the speakers, slide the sliding plate 12 on the rotating block 11 to adjust the position of the other two speakers. Then, rotate the sliding plate 12 in conjunction with the rotating block 11 to adjust the height and position of the speakers. After the height and position are adjusted, the first elastic element supports the first limiting rod 13 to be inserted into the inner wall of the limiting plate 14. The two first limiting rods 13 are inserted into the inner walls of the two limiting plates 14 respectively, thereby limiting the position of the sliding plate 12. Then, fix the three speakers to the two ends of the first support frame 1 and the sliding plate 12 respectively. This allows multiple speakers to be assembled using the same foldable bracket, which can reduce the floor space occupied by the speaker support, and is especially convenient for placement in places with limited space. By adjusting the position of the sliding plate 12, the speakers at both ends of the sliding plate 12 can be placed in different positions. For example, when the sliding plate 12 is centered, the two speakers mounted at both ends of the sliding plate 12 are equidistant from the first support frame 1, achieving standard stereo sound from left to right. This is suitable for music appreciation, stereo movie viewing, and immersive gaming experiences. The left and right channels are clearly separated, creating a wide sound field. The center unit enhances vocals and core frequencies, making it suitable for scenarios requiring precise positioning and spatial awareness, such as home theaters and Hi-Fi music systems. When the sliding plate 12 is shifted to the right, the distance between the left-end speaker and the first support frame 1 is shorter than the distance between the right-end speaker and the first support frame 1. This design achieves asymmetrical mid-frequency enhancement from center to center to right, suitable for conference hosting, podcast recording, and voice-first scenarios. The dual center units emphasize mid-frequency clarity and enhance vocal performance, making it suitable for situations where voice communication is the primary focus. However, the stereo balance is relatively weak, and it does not pursue an immersive audio-visual experience. When the center position of the sliding plate 12 is shifted to the left, the distance between the speaker mounted on the left end of the sliding plate 12 and the first support frame 1 is longer than the distance between the speaker mounted on the right end of the sliding plate 12 and the first support frame 1. This achieves a left-center-center emphasis on the central sound field, suitable for stage performances, small live performances, and multimedia presentations. The dual center units concentrate sound energy to ensure uniform sound pressure in the front area, suitable for situations where the audience is concentrated in the center, while taking into account some stereo details and enhancing the coverage of the core area. By adjusting the angle of the sliding plate 12, the speakers at both ends of the sliding plate 12 can be placed at different heights. For example, when the angle of the sliding plate 12 is horizontal at both ends, the three speakers are placed side by side, presenting a horizontal layout, which is suitable for standard home theaters, music listening areas, and professional monitoring environments. All speaker units are at the same height as the listener's ears, ensuring accurate sound image positioning and clear imaging, avoiding phase interference caused by height differences, and is suitable for sofa and fixed seating scenarios, pursuing studio-level sound field reproduction. When the angle of the sliding plate 12 is left-high and right-low, the height of the speaker at the left end of the sliding plate 12 is higher than the speaker on the first support bracket 1, which is higher than the sliding plate 12. The right-end speaker features an upper-middle-lower layout with high, medium, and low frequencies, suitable for multi-layered spaces and large immersive audio systems. It creates a three-dimensional sound field through height layering. When the angle of the sliding plate 12 is left-lower and right-higher, the height of the left-end speaker of the sliding plate 12 is lower than that of the upper speaker of the first support frame 1, which is lower than that of the right-end speaker of the sliding plate 12. This layout features a lower-middle-upper layout with low, medium, and high frequencies in reverse order, suitable for stage performances, live sound reinforcement, and tiered audience seating. The low-positioned speaker covers the front row audience, the middle position balances the central area, and the high position ensures uniform sound pressure in the rear row. This layout sacrifices precise positioning, emphasizing sound pressure coverage and energy distribution, and is suitable for large-scale dynamic performances rather than fine listening.

[0024] like Figures 1 to 5As shown, fixed rods 2 are fixed to the outer walls of both ends of the sliding plate 12; a second support frame 21 is rotatably connected to the fixed rod 2; a plug plate 22 is slidably connected to the inner wall of the fixed rod 2 through a second elastic element; a first bolt 23 is threadedly connected to the inner wall of the fixed rod 2; when assembling speakers at both ends of the sliding plate 12, first adjust and fix the position and angle of the sliding plate 12, then rotate the first bolt 23 to press the plug plate 22 to slide, the second elastic element contracts and is subjected to force, then hold the two second support frames 21 and rotate them on the two fixed rods 2 at both ends of the sliding plate 12 respectively, and rotate the first bolt 23 in the opposite direction to reset according to the assembly requirements, the second elastic element springs back to reset and presses the plug plate 22, the plug plate 22 simultaneously presses the second support frame 21, which can help limit the angle of the second support frame 21, then fix the second support frame 21, and then install the speaker on the top of the second support frame 21, which serves to support and fix the speakers at both ends of the sliding plate 12.

[0025] The cross-sectional shape of the plug-in plate 22 is U-shaped; the second support frame 21 has multiple square slots, the plug-in plate 22 corresponds to the square slots, and the multiple square slots are arranged in a ring; when adjusting the support angle of the second support frame 21, the multiple square slots are arranged in a ring for adjusting different angle limits of the second support frame 21. First, the first bolt 23 is used to rotate and press the plug-in plate 22 to slide, and the plug-in plate 22 slides out of the two square slots of the second support frame 21. The second elastic element contracts and is subjected to force. Then, the second support frame 21 is held and rotated to adjust the angle. After the adjustment is completed, the first bolt 23 is rotated in the opposite direction, and the second elastic element is spring-forced back to press the plug-in plate 22, so that the two protruding parts at both ends of the plug-in plate 22 are inserted into the two square slots, thereby realizing the support angle limit of the second support frame 21, which facilitates the stable assembly of the speaker.

[0026] like Figures 1 to 3 As shown, a sliding block 4 is slidably connected to the inner wall of the sliding plate 12; a second limiting rod 41 is slidably connected to the inside of the sliding block 4 through a third elastic element; multiple limiting holes are provided on the sliding plate 12 near the sliding block 4, and the diameter of the limiting holes corresponds to that of the second limiting rod 41; a first counterweight block 42 is fixedly connected to the outer wall of the sliding block 4; when the sliding plate 12 slides to one side of the first support frame 1, gravity shift is likely to occur after the speakers are installed. By using the sliding block 4 to slide in the opposite direction on the sliding plate 12, the first counterweight block 42 slides synchronously with the sliding block 4. After the sliding block 4 slides, the second limiting rod 41 is pressed by the third elastic element and inserted into a limiting hole. The second limiting rod 41 can limit the position of the first counterweight block 42. The weight of the first counterweight block 42 balances the gravity shift generated after the speakers are installed at both ends of the sliding plate 12, thereby maintaining the stability of the foldable bracket support.

[0027] like Figures 1 to 3 , Figure 6 As shown, a third support frame 5 is slidably connected to the first support frame 1; both the first support frame 1 and the third support frame 5 have threaded holes of the same diameter; the inner walls of the first support frame 1 and the third support frame 5 are threadedly connected to the second bolt 51; when adjusting the overall height of multiple speakers, the third support frame 5 is first fixed to the ground, then the first support frame 1 is pulled out and slid against the inner wall of the third support frame 5 to control the height of the first support frame 1. After adjustment, the second bolt 51 is threadedly connected to the corresponding threaded holes of the third support frame 5 and the first support frame 1, thereby limiting the overall installation height of the speakers.

[0028] A sliding cylinder 6 is slidably connected to the third support frame 5; the inner walls of the first support frame 1, the third support frame 5, and the sliding cylinder 6 are threaded with third bolts 61; three support legs 62 are hinged to the sliding cylinder 6; connecting plates 63 are hinged to the support legs 62; a connecting block 64 is fixed to the bottom end of the third support frame 5, and the three connecting plates 63 are all hinged to the connecting block 64; when supporting the bottom of the third support frame 5, the sliding cylinder 6 slides against the outer wall of the third support frame 5, and the sliding cylinder 6 slides down. During the process, the three support legs 62, which are hinged to the connecting block 64 by three connecting plates 63, can be extended outward. They are threaded into the sliding cylinder 6, the third support frame 5, and the first support frame 1 using bolts 61. This allows the three support legs 62 to provide stable triangular support for the third support frame 5. When the bottom of the third support frame 5 is folded and stored, the bolts 61 are removed and the sliding cylinder 6 is slid upward, so that the three support legs 62 can be centered and close together, thus achieving the function of folding and storing the three support legs 62.

[0029] like Figures 1 to 3 , Figures 5 to 7 As shown, the second support frame 21 has a hole; a hook 52 is installed in the hole; a steel wire rope 53 is fixed to the bottom end of the hook 52; when multiple speakers are fixed on the first support frame 1 and the two second support frames 21, the hook 52 is hooked into the hole of the second support frame 21, and the steel wire rope 53 is used to pull the hook 52 to tighten it. Then, the end of the steel wire rope 53 away from the hook 52 is wrapped around the third support frame 5 to tighten it, thereby achieving the function of fastening the support of the two second support frames 21 and reducing the probability of unstable support tilting caused by uneven gravity of the two second support frames 21.

[0030] A fixed frame 54 is slidably connected to the outer wall of the third support frame 5; a snap-fit ​​bracket 55 is inserted into the fixed frame 54; a pin 56 is inserted into the fixed frame 54, and the pin 56 passes through the snap-fit ​​bracket 55; a fixing bolt 57 is threadedly connected to the inner walls of the third support frame 5 and the snap-fit ​​bracket 55; a winding device 58 is rotatably connected to both ends of the fixed frame 54, and the end of the wire rope 53 away from the hook 52 is sleeved on the winding device 58; when using the two hooks 52 and the wire rope 53 to tighten the two second support frames 21, the fixed frame is held... 54 is slidably adjusted with the snap-fit ​​bracket 55, and is threadedly fixed to the third support frame 5 by the fixing bolt 57. The two pins 56 can be inserted into the fixing frame 54 and the snap-fit ​​bracket 55 to achieve snap-fit. Then, according to the adjusted position of the two second support frames 21, the two winders 58 are rotated respectively. The winders 58 have a built-in self-locking structure, which can achieve the function of self-locking length after winding or loosening the wire rope 53. The wire rope 53 is hooked into the hole of the second support frame 21 with the hook 52 to tighten it, thereby improving the stability of the support position of the two second support frames 21.

[0031] The bottom end of the connecting block 64 is threadedly connected to a threaded rod 7; the bottom end of the threaded rod 7 is fixedly connected to a second counterweight 71; the bottom end of the second counterweight 71 is threadedly connected to a threaded leg 8; there are three threaded legs 8, and the bottom end of each threaded leg 8 is a disc; when the three support legs 62 provide triangular support for the bottom end of the third support frame 5, the threaded rod 7 is threadedly connected to the bottom end of the connecting block 64, and the threaded rod 7 can be threadedly adjusted according to the different support heights of the three support legs 62, so that the second counterweight 71 is in contact with the ground for support. The second counterweight 71, relying on its own weight and the ground support, can further improve the stability of the foldable bracket and reduce the risk of the foldable bracket shifting and falling; when the foldable bracket is placed on uneven ground, the three threaded legs 8 are respectively threadedly rotated to adjust their contact with the ground, and the three threaded legs 8 support different heights, finding a stable position for the second counterweight 71 and providing support. The disc at the bottom of the threaded leg 8 can serve as a fulcrum, providing more stable support for the speaker on uneven ground.

[0032] like Figures 1 to 5As shown, the bottom end of the support leg 62 is fixed with an anti-slip sleeve 9; multiple anti-slip protrusions are fixed on the anti-slip sleeve 9; square plates are fixed to the top of the first support frame 1 and the second support frame 21; threaded holes are opened at the four corners of the square plates; when the three support legs 62 provide triangular support for the speaker, the anti-slip sleeve 9 is fixed to the bottom end of the support leg 62 to fit against the ground, and the multiple anti-slip protrusions increase the friction with the ground, so that the three support legs 62 can support the speaker more stably after unfolding; when multiple speakers are installed on the first support frame 1 and the second support frame 21 respectively, multiple square plates are fixed to the first support frame 1 and the second support frame 21 respectively as the bottom support of the speaker, so that the speaker is more stable after installation. Multiple fixing bolts are used to fix the square plates to the bottom of the speaker from the four corners to realize the installation of the speaker and reduce the occurrence of the speaker falling.

[0033] Working Process: When using a foldable stand to support speakers for outdoor commercial performances, support frame 1 (number 1) serves as the main support for the foldable stand. The initial state of the sliding plate 12 is that it folds perpendicularly to support frame 1 after rotating with the rotating block 11. The sliding plate 12 is folded and stored on one side of support frame 1. First, support frame 1 is fixed to the ground. Then, according to the required height and position of the speakers, the sliding plate 12 is held and slid along the rotating block 11 to adjust the position of the other two speakers. Then, the sliding plate 12 is held and rotated in conjunction with the rotating block 11 to adjust the height and position of the speakers. After the height and position adjustments are complete... The first elastic element supports the insertion of the first limiting rod 13 into the inner wall of the limiting plate 14. Two first limiting rods 13 are inserted into the inner walls of the two limiting plates 14 respectively, thus limiting the position of the sliding plate 12. Then, three speakers are fixed to the first support frame 1 and both ends of the sliding plate 12, allowing multiple speakers to be mounted on the same foldable bracket. This reduces the footprint of the speaker support, making it particularly convenient for placement in spaces with limited space. When mounting speakers at both ends of the sliding plate 12, first adjust and fix the position and angle of the sliding plate 12, then rotate the first bolt 23. Squeeze the plug-in plate 22 to slide, causing the second elastic element to contract and bear force. Then, hold the two second support frames 21 and rotate them on the two fixed rods 2 at both ends of the sliding plate 12. Rotate the first bolt 23 in the opposite direction to reset according to the assembly requirements. The second elastic element will spring back to reset and squeeze the plug-in plate 22. The plug-in plate 22 will simultaneously squeeze the second support frame 21, which can help limit the angle of the second support frame 21. Then fix the second support frame 21, and then install the speaker on the top of the second support frame 21, which will support and fix the speaker at both ends of the sliding plate 12. When adjusting the support of the second support frame 21... When the angle is adjusted, multiple square slots are arranged in a ring for adjusting different angle limits of the second support frame 21. First, use the thread of the first bolt 23 to rotate and press the plug plate 22 to slide. The plug plate 22 slides out of the two square slots of the second support frame 21, and the second elastic element contracts and is subjected to force. Then, hold the second support frame 21 and rotate it to adjust the angle. After the adjustment is completed, rotate the first bolt 23 in the opposite direction. The elastic element of the second elastic element returns to its original position and presses the plug plate 22, so that the protruding parts at both ends of the plug plate 22 are inserted into the two square slots, thereby limiting the support angle of the second support frame 21 and facilitating the stable assembly of the speaker. When the sliding plate 12 slides to one side of the first support frame 1, gravity shift is likely to occur after the speakers are installed. The sliding block 4 slides in the opposite direction on the sliding plate 12, and the first counterweight 42 slides synchronously with the sliding block 4. After the sliding block 4 slides, the third elastic element presses the second limiting rod 41 into a limiting round hole. The second limiting rod 41 can limit the position of the first counterweight 42. The weight of the first counterweight 42 balances the gravity shift generated after the speakers are installed at both ends of the sliding plate 12, thereby maintaining the stability of the foldable bracket support. When multiple speakers are fixed to support frame 1 and two support frames 21, hooks 52 are hooked into the holes of support frame 21, and steel wire ropes 53 are used to pull hooks 52 to tighten them. Then, the end of steel wire rope 53 away from hooks 52 is wrapped around support frame 5 to tighten it, thereby securing the support points of the two support frames 21 and reducing the probability of unstable support tilting caused by uneven gravity. When using the two hooks 52 and steel wire ropes 53 to tighten the two support frames 21, hold them in place. The frame 54 is slidably adjusted in conjunction with the snap-fit ​​frame 55. It is threadedly fixed to the third support frame 5 by the fixing bolt 57. The two pins 56 can be inserted into the fixing frame 54 and the snap-fit ​​frame 55 to achieve snap-fit. Then, according to the adjusted position of the two second support frames 21, the two winders 58 are rotated respectively. The winders 58 have a built-in self-locking structure, which can achieve the function of self-locking length after winding or loosening the wire rope 53. The wire rope 53 is hooked into the hole of the second support frame 21 with the hook 52 to tighten it, thereby improving the stability of the support position of the two second support frames 21. When adjusting the overall height of multiple speaker installations, first fix support bracket 5 (number 3) to the ground. Then, slide support bracket 1 (number 1) against the inner wall of support bracket 5 to control its height. After adjustment, thread bolt 51 (number 2) into the corresponding threaded holes of support bracket 5 and support bracket 1 simultaneously to limit the overall installation height of the speakers. When supporting the bottom of support bracket 5, slide cylinder 6 against the outer wall of support bracket 5. As cylinder 6 slides down, it causes the three support legs 62, hinged by three connecting plates 63 on connecting block 64, to unfold outward. Thread bolt 61 (number 3) is then threaded into the interior of cylinder 6, support bracket 5, and support bracket 1, providing stable triangular support for support bracket 5. When folding the bottom of support bracket 5 for storage, remove bolt 61. Slide the sliding cylinder 6 upwards so that the three support legs 62 can be centered and close together, achieving the function of folding and storing the three support legs 62; when the three support legs 62 provide triangular support for the bottom of the third support frame 5, the threaded rod 7 is threadedly connected to the bottom of the connecting block 64. The threaded rod 7 can be threadedly adjusted according to the different support heights of the three support legs 62, so that the second counterweight block 71 is in contact with the ground for support. The second counterweight block 71, relying on its own weight and the ground support, can further improve the stability of the foldable bracket and reduce the risk of the foldable bracket shifting and falling; when the foldable bracket is placed on uneven ground, the three threaded legs 8 are respectively threadedly rotated to adjust their contact with the ground. The three threaded legs 8 support different heights to find a stable position for the second counterweight block 71 and provide support. The disc at the bottom of the threaded leg 8 can act as a fulcrum, providing more stable support for the speaker on uneven ground; When the three support legs 62 provide triangular support for the speaker, the anti-slip sleeves 9 are fixed to the bottom of the support legs 62 to fit against the ground. Multiple anti-slip protrusions increase the friction with the ground, allowing the three support legs 62 to support the speaker more stably after being unfolded. When multiple speakers are installed on support frame 1 and support frame 21 respectively, multiple square plates are fixed to support frame 1 and support frame 21 respectively as bottom supports for the speakers, making the speakers more stable after installation. Multiple fixing bolts are used to fix the square plates to the bottom of the speakers from the four corners, realizing the installation of the speakers and reducing the possibility of the speakers falling.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable stand for a speaker, characterized in that: The system includes a first support frame; a rotating block is rotatably connected to the outer wall of the first support frame; a sliding plate is slidably connected to the rotating block; multiple first-position limiting rods are slidably connected to the inner wall of the first support frame via a first elastic element, and the multiple first-position limiting rods are arranged in a ring; multiple limiting plates are fixed to both sides of the sliding plate, and the multiple limiting plates are arranged in pairs opposite each other; the first-position limiting rods are inserted into the inner walls of the pairs of opposite limiting plates under the elastic force of the first elastic element, so as to limit the position of the sliding plate; Fixed rods are fixedly connected to the outer walls of both ends of the sliding plate; a second support frame is rotatably connected to the fixed rod; a plug plate is slidably connected to the inner wall of the fixed rod through a second elastic element; a first bolt is threadedly connected to the inner wall of the fixed rod; rotating the first bolt squeezes the plug plate to compress the second elastic element and slides, and the plug plate is inserted into the second support frame to limit the angle of the second support frame; The cross-sectional shape of the plug-in plate is U-shaped; multiple square slots are provided on the second support frame, the plug-in plate corresponds to the square slots, and the multiple square slots are arranged in a ring; three speakers are fixed to the top of the first support frame and the second support frame respectively.

2. The foldable speaker stand according to claim 1, characterized in that: The inner wall of the sliding plate is slidably connected to a sliding block; the interior of the sliding block is slidably connected to a second limiting rod via a third elastic element; multiple limiting holes are provided on the sliding plate near the sliding block, and the diameter of the limiting holes corresponds to that of the second limiting rod; a first counterweight is fixedly connected to the outer wall of the sliding block.

3. The foldable speaker stand according to claim 1, characterized in that: A third support frame is slidably connected to the first support frame; both the first and third support frames have threaded holes of the same diameter; and the inner walls of the first and third support frames are threaded with second bolts.

4. The foldable speaker stand according to claim 3, characterized in that: A sliding cylinder is slidably connected to the No. 3 support frame; the inner walls of the No. 1 support frame, the No. 3 support frame, and the sliding cylinder are threaded with No. 3 bolts; three support legs are hinged to the sliding cylinder; connecting plates are hinged to the support legs; a connecting block is fixed to the bottom end of the No. 3 support frame, and all three connecting plates are hinged to the connecting block.

5. A foldable speaker stand according to claim 4, characterized in that: The second support frame has a hole; a hook is installed in the hole; and a steel wire rope is fixed to the bottom end of the hook.

6. The foldable speaker stand according to claim 5, characterized in that: The outer wall of the No. 3 support frame is slidably connected to a fixed frame; a snap-fit ​​frame is inserted into the fixed frame; a pin is inserted into the fixed frame and passes through the snap-fit ​​frame; the inner walls of the No. 3 support frame and the snap-fit ​​frame are threaded with fixing bolts; both ends of the fixed frame are rotatably connected to a winding device, and the end of the wire rope away from the hook is sleeved on the winding device.

7. A foldable speaker stand according to claim 4, characterized in that: The bottom end of the connecting block is threaded with a threaded rod; the bottom end of the threaded rod is fixed with a second counterweight; the bottom end of the second counterweight is threaded with a threaded leg; there are three threaded legs, and the bottom end of the threaded legs is a disc.

8. A foldable speaker stand according to claim 4, characterized in that: The bottom end of the support leg is fixedly connected to an anti-slip sleeve; multiple anti-slip protrusions are fixedly connected to the anti-slip sleeve; square plates are fixedly connected to the top of both the first and second support frames; threaded holes are opened at the four corners of the square plates.

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