Bluetooth speaker with anti-falling function

Abstract

The application discloses a Bluetooth sound box with a fall-preventing function, and relates to the technical field of Bluetooth sound boxes.The Bluetooth sound box with the fall-preventing function comprises a sound box body, a base connected to the bottom of the sound box body through an extension mechanism, a plurality of symmetrically arranged supporting legs rotatably connected to the bottom of the base through a rotating mechanism, and locking universal wheels fixedly connected to the other ends of the supporting legs.The Bluetooth sound box with the fall-preventing function can automatically lower the gravity center height of the sound box body when the sound box body is subjected to external force impact, can simultaneously expand the plurality of supporting legs to the outside, can make the supporting range of the locking universal wheels larger, and can further make the sound box body more stable and reliable, thereby preventing the sound box body from falling down.The Bluetooth sound box with the fall-preventing function can limit the speed of upward movement of the sound box body after the impact is completed, can ensure the slow upward movement of the sound box body, can limit the speed of folding of the supporting legs, and can be more stable and reliable, thereby ensuring the use effect and service life of the Bluetooth sound box with the fall-preventing function.

Description

Technical Field

[0001] This invention relates to the field of Bluetooth speaker technology, specifically to a Bluetooth speaker with drop protection. Background Technology

[0002] Bluetooth speakers are audio devices that use Bluetooth connectivity instead of traditional wired connections. They can be controlled via computer devices such as tablets. Currently, Bluetooth speakers are also used when people are square dancing. In order to ensure sound quality, volume, and visual effects, the Bluetooth speakers used for square dancing are relatively tall, and they are equipped with locking casters at the bottom for easy movement.

[0003] However, existing Bluetooth speakers are prone to being bumped by large numbers of people dancing in public squares. Due to their height and high center of gravity, they are easily knocked over. Furthermore, the limited support range of the locking casters at the bottom also makes them unstable and unreliable, thus affecting their performance and lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a Bluetooth speaker with drop protection to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a Bluetooth speaker with drop protection function, comprising a speaker body, a base connected to the bottom of the speaker body via a telescopic mechanism, and a plurality of symmetrically arranged support legs rotatably connected to the bottom of the base via a rotating mechanism, the other end of each support leg being fixedly connected to a locking universal wheel, and the rotation of the support legs being driven by a drive mechanism, rubber bladders fixedly connected to the four corners of the speaker body, the rubber bladders being filled with hydraulic oil, a first pushing mechanism for pushing the speaker body downwards being provided at the bottom of the speaker body, and a speed limiting mechanism for limiting the speed of movement of the speaker body being provided at the top of the base.

[0006] Preferably, the telescopic mechanism includes two symmetrically arranged first sleeve rods fixedly connected to the bottom of the speaker body, and the side wall of the first sleeve rod is fitted with a first sleeve tube, the lower end of the first sleeve tube is fixed to the top of the base, and the side wall of the first sleeve tube is fitted with a first spring.

[0007] Preferably, the rotating mechanism includes a first connecting block fixedly connected to the upper end of each leg, and the side wall of the first connecting block is rotatably connected to two symmetrically arranged second connecting blocks via a first rotating shaft, and the second connecting blocks are fixed to the bottom of the base.

[0008] Preferably, the first pushing mechanism includes a connecting pipe fixedly connected between each rubber bladder, and an L-shaped connecting pipe is fixedly connected to the bottom of one of the connecting pipes. A working pipe is fixedly connected to the other end of the connecting pipe. A moving rod is slidably connected inside the working pipe. A pushing plate is connected to the bottom of the speaker body through a first reset mechanism. One end of the moving rod is fixed to the side wall of the pushing plate. The pushing plate includes a first inclined surface. An L-shaped baffle is fixedly connected to the top of the base. The baffle slides on the first inclined surface.

[0009] Preferably, the first reset mechanism includes two symmetrically arranged fixing blocks fixedly connected to the bottom of the speaker body, and two symmetrically arranged T-shaped guide rods are inserted into the side wall of the fixing blocks. One end of the T-shaped guide rod is fixed to the side wall of the push plate, and a second spring is sleeved on the side wall of the T-shaped guide rod.

[0010] Preferably, the driving mechanism includes a gear fixedly sleeved on the side wall of the first rotating shaft, and a plurality of symmetrically arranged push rods are fixedly connected to the bottom of the speaker body. The lower end of the push rod passes through the bottom of the base and is fixedly connected to a rack, and the rack meshes with the gear.

[0011] Preferably, the speed limiting mechanism includes a support plate fixedly connected to the top of the base, and a fixing ring is rotatably connected to the side wall of the support plate via a second rotating shaft. A plurality of arrayed second sleeves are fixedly connected to the side wall of the fixing ring, and a sliding disc is slidably connected inside the second sleeve. A second sleeve rod is connected to the end of the sliding disc, and a metal ball is fixedly connected to the other end of the second sleeve rod. A third spring is sleeved on the side wall of the second sleeve rod. A friction ring is fixedly connected to the side wall of the support plate, and the rotation of the second rotating shaft is driven by a second pushing mechanism.

[0012] Preferably, the second pushing mechanism includes a rotating disk fixedly connected to one end of the second rotating shaft, and a plurality of arrayed protrusions are fixedly connected to the side wall of the rotating disk. The top of the base is connected to a moving block through a second reset mechanism, and a sliding groove is provided on the side wall of the moving block. A sliding plate is slidably connected in the sliding groove, and a fourth spring is fixedly connected between the sliding plate and the sliding groove. A plurality of arrayed triangular blocks are fixedly connected to the side wall of the sliding plate, and the triangular blocks include a second inclined surface and a limiting surface. The movement of the moving block is driven by a third pushing mechanism.

[0013] Preferably, the second reset mechanism includes two symmetrically arranged third sleeves fixedly connected to the top of the base, and a third sleeve rod is inserted inside the third sleeve. The upper end of the third sleeve rod is fixed to the bottom of the moving block, and a fifth spring is sleeved on the side wall of the third sleeve.

[0014] Preferably, the third pushing mechanism includes a connecting plate fixedly connected to the bottom of the speaker body, and a lever is rotatably connected to the side wall of the connecting plate via a third rotating shaft. The side wall of the lever is provided with a sliding groove, and a sliding pin is slidably connected in the sliding groove. The sliding pin is fixed to the side wall of the moving block, and the lever slides on the top of the baffle.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This type of Bluetooth speaker with drop protection features a first pushing mechanism. When an external force impacts the rubber bladder, it squeezes the hydraulic oil inside, providing a cushioning effect and preventing the speaker from tipping over. Simultaneously, the pushing rod moves away from the working tube, causing the pushing plate to move synchronously. At the same time, the second spring is compressed, causing the pushing plate to abut against the baffle, pushing it downwards. This, in turn, causes the speaker body to move downwards synchronously via a fixing block. The compression of the first spring lowers the speaker's center of gravity, making it more stable and reliable, further preventing tipping. This type of Bluetooth speaker with drop protection also incorporates a drive mechanism. When the speaker body moves downwards, the pushing rod drives the rack to move downwards synchronously, causing the gear to rotate clockwise. The rotation of the gear drives the first rotating shaft and the first connecting block, which in turn rotates the support legs. This allows multiple support legs to extend outwards, increasing the support range of the locking casters and further enhancing the speaker's stability and reliability, preventing tipping. This type of Bluetooth speaker with drop protection features a speed-limiting mechanism. When the speaker body moves downwards, it drives the connecting plate to move synchronously, causing the lever to abut against the top of the baffle. This causes the lever to rotate clockwise along the third pivot. Simultaneously, the sliding pin slides within the sliding groove, moving the moving block upwards. At the same time, the fifth spring is stretched, causing the second inclined surface to abut against the side wall of the protrusion, retracting the triangular block into the sliding groove. Simultaneously, the fourth spring is compressed, preventing the rotating disk from rotating. This ensures the speaker body can descend quickly and the support legs can open outwards rapidly, resulting in greater stability and reliability. After the external force separates from the rubber bladder, the speaker body can move upward under the action of the first spring. At the same time, the moving block can move downward and reset under the action of the fifth spring. At this time, the limiting surface abuts against the side wall of the protrusion, thereby pushing the rotating disk and the second rotating shaft to rotate. The rotation of the second rotating shaft drives the rotation of the fixed ring and the metal ball, so that the metal ball moves away from the fixed ring under the action of centrifugal force and is opposite to the inner side wall of the friction ring. This can limit the speed of the rotation of the second rotating shaft, thereby limiting the speed of the speaker body moving upward. At the same time, it can limit the speed of the legs retracting, making it more stable and reliable. Attached Figure Description Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram showing the position of the rotating mechanism in this invention; Figure 3 This is a schematic diagram showing the position of the second pushing mechanism in this invention; Figure 4 This is a schematic diagram showing the position of the first pushing mechanism in this invention; Figure 5 for Figure 1 Enlarged structural diagram at point A; Figure 6 for Figure 2 Enlarged structural diagram at point B; Figure 7 for Figure 3 Enlarged structural diagram at point C; Figure 8 for Figure 4 Enlarged structural diagram at point D; Figure 9 for Figure 6 Enlarged structural diagram at point E; Figure 10 for Figure 8 Enlarged structural diagram at point F; Figure 11 for Figure 10 A magnified structural diagram of point G in the middle.

[0016] In the diagram: 1. Speaker body; 201. First sleeve rod; 202. First sleeve tube; 203. First spring; 301. Second connecting block; 302. First connecting block; 303. First rotating shaft; 401. Connecting pipe; 402. Connecting pipe; 403. Working pipe; 404. Moving rod; 405. Push plate; 406. First inclined plane; 407. Baffle; 501. Fixed block; 502. T-shaped guide rod; 503. Second spring; 601. Gear; 602. Push rod; 603. Rack; 701. Support plate; 702. Second rotating shaft; 703. Fixed ring; 704. Friction ring; 705. 706. Sliding plate; 707. Second rod; 708. Metal ball; 709. Third spring; 801. Rotating plate; 802. Protrusion; 803. Moving block; 804. Slide groove; 805. Slide plate; 806. Triangular block; 807. Second inclined plane; 808. Limiting surface; 809. Fourth spring; 901. Third sleeve; 902. Third rod; 903. Fifth spring; 1001. Connecting plate; 1002. Third pivot; 1003. Lever; 1004. Sliding pin; 1005. Sliding groove; 11. Base; 12. Locking caster wheel; 13. Rubber bladder; 14. Support leg. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-11 This invention provides a technical solution: a Bluetooth speaker with drop protection, comprising a speaker body 1, a base 11 connected to the bottom of the speaker body 1 via a telescopic mechanism, and a plurality of symmetrically arranged support legs 14 rotatably connected to the bottom of the base 11 via a rotating mechanism. The other end of each support leg 14 is fixedly connected to a locking caster wheel 12, and the rotation of the support legs 14 is driven by a drive mechanism. Rubber bladders 13 are fixedly connected to the four corners of the speaker body 1, and the rubber bladders 13 are filled with hydraulic oil. A first pushing mechanism for pushing the speaker body 1 downwards is provided at the bottom of the speaker body 1. The top of the base 11 is equipped with a speed limiting mechanism for limiting the movement of the speaker body 1. When the speaker body 1 is subjected to an external impact, it can automatically lower the center of gravity of the speaker body 1. At the same time, it can extend the multiple support legs 14 outward, so that the support range of the locking caster wheels 12 is larger, thereby making the speaker body 1 more stable and reliable and preventing it from falling over. After the impact, it can limit the upward movement speed of the speaker body 1 to ensure that it rises slowly. At the same time, it can limit the speed at which the support legs 14 retract, making it more stable and reliable and ensuring its performance and lifespan.

[0019] The telescopic mechanism includes two symmetrically arranged first sleeve rods 201 fixedly connected to the bottom of the speaker body 1, and a first sleeve 202 is sleeved on the side wall of the first sleeve rod 201. The lower end of the first sleeve 202 is fixed to the top of the base 11, and a first spring 203 is sleeved on the side wall of the first sleeve 202, which plays a guiding and resetting role in the movement of the speaker body 1.

[0020] The rotating mechanism includes a first connecting block 302 fixedly connected to the upper end of each support leg 14. The side wall of the first connecting block 302 is rotatably connected to two symmetrically arranged second connecting blocks 301 through a first rotating shaft 303. The second connecting blocks 301 are fixed to the bottom of the base 11 to ensure the normal rotation of the support leg 14.

[0021] The first pushing mechanism includes a connecting pipe 401 fixedly connected between each rubber bladder 13, and an L-shaped connecting pipe 402 fixedly connected to the bottom of one of the connecting pipes 401. A working pipe 403 is fixedly connected to the other end of the connecting pipe 402. A moving rod 404 is slidably connected inside the working pipe 403. A push plate 405 is connected to the bottom of the speaker body 1 via a first reset mechanism. One end of the moving rod 404 is fixed to the side wall of the push plate 405. The push plate 405 includes a first inclined surface 406. An L-shaped baffle 407 is fixedly connected to the top of the base 11. The baffle 407 is a first inclined surface 406. Sliding on the inclined plane 406, when an external force collides with the rubber bladder 13, it squeezes the hydraulic oil inside the rubber bladder 13, which can play a certain buffering effect and prevent it from falling over. At the same time, it pushes the moving rod 404 to move away from the working tube 403, and drives the push plate 405 to move synchronously, so that the push plate 405 abuts against the baffle 407, thereby pushing the push plate 405 to move downward, and through the first reset mechanism, it drives the speaker body 1 to move downward synchronously. At the same time, the first spring 203 is compressed, thereby reducing the center of gravity height of the speaker body 1, making it more stable and reliable, and preventing it from falling over.

[0022] The first reset mechanism includes two symmetrically arranged fixing blocks 501 fixedly connected to the bottom of the speaker body 1, and two symmetrically arranged T-shaped guide rods 502 are inserted into the side wall of the fixing blocks 501. One end of the T-shaped guide rod 502 is fixed to the side wall of the push plate 405, and a second spring 503 is sleeved on the side wall of the T-shaped guide rod 502, which guides and resets the movement of the push plate 405.

[0023] The drive mechanism includes a gear 601 fixedly sleeved on the side wall of the first rotating shaft 303, and a plurality of symmetrically arranged push rods 602 are fixedly connected to the bottom of the speaker body 1. The lower end of the push rod 602 passes through the bottom of the base 11 and is fixedly connected to a rack 603. The rack 603 is meshed with the gear 601. When the speaker body 1 moves downward, the push rod 602 drives the rack 603 to move downward synchronously, and drives the gear 601 to rotate clockwise. The rotation of the gear 601 drives the rotation of the first rotating shaft 303 and the first connecting block 302, which in turn drives the rotation of the support legs 14, thereby enabling the multiple support legs 14 to unfold outward, making the support range of the locking caster 12 larger, and thus making the speaker body 1 more stable and reliable, preventing it from falling over.

[0024] The speed limiting mechanism includes a support plate 701 fixedly connected to the top of the base 11. A fixing ring 703 is rotatably connected to the side wall of the support plate 701 via a second rotating shaft 702. Multiple arrayed second sleeves 705 are fixedly connected to the side wall of the fixing ring 703. A sliding disk 706 is slidably connected inside the second sleeve 705. A second rod 707 is connected to the end of the sliding disk 706, and a metal ball 708 is fixedly connected to the other end of the second rod 707. A third spring 709 is sleeved on the side wall of the second rod 707. A friction ring 704 is fixedly connected to the side wall of the support plate 701. The rotation of the second rotating shaft 702 is driven by a second pushing mechanism. When the speaker body 1 moves downwards... The second rotating shaft 702 will not rotate, ensuring that the speaker body 1 can descend quickly and that the support legs 14 can open outward quickly, making it more stable and reliable. When the speaker body 1 moves upward, the second pushing mechanism can push the second rotating shaft 702 to rotate. The rotation of the second rotating shaft 702 will in turn drive the rotation of the fixing ring 703 and the metal ball 708, causing the metal ball 708 to move away from the fixing ring 703 under the action of centrifugal force and to face the inner wall of the friction ring 704. This can limit the speed of the rotation of the second rotating shaft 702, thereby limiting the speed at which the speaker body 1 moves upward. At the same time, it can limit the speed at which the support legs 14 retract, making it more stable and reliable.

[0025] The second pushing mechanism includes a rotating disk 801 fixedly connected to one end of the second rotating shaft 702, and a plurality of arrayed protrusions 802 fixedly connected to the side wall of the rotating disk 801. A moving block 803 is connected to the top of the base 11 via a second reset mechanism, and a groove 804 is provided on the side wall of the moving block 803. A sliding plate 805 is slidably connected within the groove 804, and a fourth spring 809 is fixedly connected between the sliding plate 805 and the groove 804. A plurality of arrayed triangular blocks 806 are fixedly connected to the side wall of the sliding plate 805, and each triangular block 806 includes a second inclined surface 807 and a limiting surface 808. The movement of the moving block 803 is driven by a third pushing mechanism. When the speaker body 1 moves downward, the third pushing mechanism pushes the moving block 803 upward. At this time, the second inclined surface 807 abuts against the side wall of the protrusion 802, causing the triangular block 806 to retract into the slide groove 804. Simultaneously, the fourth spring 809 is compressed. At this time, the rotating disk 801 does not rotate, ensuring that the speaker body 1 can descend quickly. When the speaker body 1 moves upward, the moving block 803 can move downward and reset under the action of the second reset mechanism. At this time, the limiting surface 808 abuts against the side wall of the protrusion 802, thereby pushing the rotating disk 801 and the second rotating shaft 702 to rotate. The rotation of the second rotating shaft 702 drives the rotation of the fixed ring 703 and the metal ball 708.

[0026] The second reset mechanism includes two symmetrically arranged third sleeves 901 fixedly connected to the top of the base 11, and a third sleeve rod 902 is inserted into the third sleeve 901. The upper end of the third sleeve rod 902 is fixed to the bottom of the moving block 803, and a fifth spring 903 is sleeved on the side wall of the third sleeve 901, which guides and resets the movement of the moving block 803.

[0027] The third driving mechanism includes a connecting plate 1001 fixedly connected to the bottom of the speaker body 1, and a lever 1003 is rotatably connected to the side wall of the connecting plate 1001 via a third rotating shaft 1002. A sliding groove 1005 is provided on the side wall of the lever 1003, and a sliding pin 1004 is slidably connected in the sliding groove 1005. The sliding pin 1004 is fixed to the side wall of the moving block 803, and the lever 1003 slides on the top of the baffle 407. When the speaker body 1 moves downward, it drives the connecting plate 1001 to move synchronously, and causes the lever 1003 to abut against the top of the baffle 407, thereby causing the lever 1003 to rotate clockwise along the third rotating shaft 1002. At the same time, the sliding pin 1004 slides in the sliding groove 1005, thereby driving the moving block 803 to move upward, and amplifying the movement stroke of the speaker body 1.

[0028] Working principle: When in use, when an external force collides with the rubber bladder 13, it squeezes the hydraulic oil inside the rubber bladder 13, which can play a certain buffering effect and prevent it from falling over. At the same time, the moving rod 404 is pushed to move away from the working tube 403, and the push plate 405 moves synchronously. Meanwhile, the second spring 503 is compressed, and the push plate 405 abuts against the baffle 407, thereby pushing the push plate 405 to move downward. Through the fixing block 501, the speaker body 1 moves downward synchronously. At the same time, the first spring 203 is compressed, which can lower the center of gravity of the speaker body 1, making it more stable and reliable and preventing it from falling over. At the same time, when the speaker body 1 moves downward, the push rod 602 drives the rack 603 to move downward in sync, and drives the gear 601 to rotate clockwise. The rotation of the gear 601 drives the rotation of the first rotating shaft 303 and the first connecting block 302, which in turn drives the rotation of the support legs 14, thereby enabling the multiple support legs 14 to unfold outward, making the support range of the locking caster 12 larger, and thus making the speaker body 1 more stable and reliable, preventing it from falling over. Furthermore, when the speaker body 1 moves downward, it drives the connecting plate 1001 to move synchronously, causing the lever 1003 to abut against the top of the baffle 407, thereby causing the lever 1003 to rotate clockwise along the third rotating shaft 1002. At the same time, the sliding pin 1004 slides in the sliding groove 1005, thereby driving the moving block 803 to move upward. Simultaneously, the fifth spring 903 is stretched. At this time, the second inclined surface 807 abuts against the side wall of the protrusion 802, causing the triangular block 806 to retract into the sliding groove 804. At the same time, the fourth spring 809 is compressed. At this time, the rotating disk 801 does not rotate, ensuring that the speaker body 1 can descend quickly, and at the same time, ensuring that the support leg 14 can open outward quickly, making it more stable and reliable. After the external force disengages from the rubber bladder 13, the speaker body 1 can move upward under the action of the first spring 203. At the same time, the moving block 803 can move downward and reset under the action of the fifth spring 903. At this time, the limiting surface 808 abuts against the side wall of the protrusion 802, thereby pushing the rotating disk 801 and the second rotating shaft 702 to rotate. The rotation of the second rotating shaft 702 drives the rotation of the fixing ring 703 and the metal ball 708, so that the metal ball 708 moves away from the fixing ring 703 under the action of centrifugal force and is opposite to the inner side wall of the friction ring 704. This can limit the speed of the rotation of the second rotating shaft 702, thereby limiting the speed at which the speaker body 1 moves upward. At the same time, it can limit the speed at which the support leg 14 retracts, making it more stable and reliable.

Claims

1. A Bluetooth speaker with drop protection function, comprising a speaker body (1), characterized in that: The bottom of the speaker body (1) is connected to a base (11) via a telescopic mechanism, and the bottom of the base (11) is rotatably connected to a plurality of symmetrically arranged support legs (14) via a rotating mechanism. The other end of the support legs (14) is fixedly connected to a locking universal wheel (12), and the rotation of the support legs (14) is driven by a driving mechanism. Rubber bladders (13) are fixedly connected to the four corners of the speaker body (1), and the rubber bladders (13) are filled with hydraulic oil. The bottom of the speaker body (1) is provided with a first pushing mechanism for pushing it to move downward, and the top of the base (11) is provided with a speed limiting mechanism for limiting the movement of the speaker body (1). The first pushing mechanism includes a connecting pipe (401) fixedly connected between each rubber bladder (13), and an L-shaped connecting pipe (402) is fixedly connected to the bottom of one of the connecting pipes (401). A working pipe (403) is fixedly connected to the other end of the connecting pipe (402). A moving rod (404) is slidably connected inside the working pipe (403). A push plate (405) is connected to the bottom of the speaker body (1) through a first reset mechanism. One end of the moving rod (404) is fixed to the side wall of the push plate (405). The push plate (405) includes a first inclined surface (406). An L-shaped baffle (407) is fixedly connected to the top of the base (11). The baffle (407) slides on the first inclined surface (406).

2. A Bluetooth speaker with drop-proof function according to claim 1, characterized in that: The telescopic mechanism includes two symmetrically arranged first sleeve rods (201) fixedly connected to the bottom of the speaker body (1), and the side wall of the first sleeve rod (201) is fitted with a first sleeve tube (202), the lower end of the first sleeve tube (202) is fixed to the top of the base (11), and the side wall of the first sleeve tube (202) is fitted with a first spring (203).

3. A Bluetooth speaker with drop-proof function according to claim 1, characterized in that: The rotating mechanism includes a first connecting block (302) fixedly connected to the upper end of each leg (14). The side wall of the first connecting block (302) is rotatably connected to two symmetrically arranged second connecting blocks (301) through a first rotating shaft (303), and the second connecting blocks (301) are fixed to the bottom of the base (11).

4. A Bluetooth speaker with drop-proof function according to claim 1, characterized in that: The first reset mechanism includes two symmetrically arranged fixing blocks (501) fixedly connected to the bottom of the speaker body (1), and two symmetrically arranged T-shaped guide rods (502) are inserted into the side wall of the fixing blocks (501). One end of the T-shaped guide rod (502) is fixed to the side wall of the push plate (405), and a second spring (503) is sleeved on the side wall of the T-shaped guide rod (502).

5. A Bluetooth speaker with drop-proof function according to claim 1, characterized in that: The drive mechanism includes a gear (601) fixedly sleeved on the side wall of the first rotating shaft (303), and a plurality of symmetrically arranged push rods (602) are fixedly connected to the bottom of the speaker body (1). The lower end of the push rod (602) passes through the bottom of the base (11) and is fixedly connected to a rack (603), and the rack (603) meshes with the gear (601).

6. A Bluetooth speaker with drop-proof function according to claim 1, characterized in that: The speed limiting mechanism includes a support plate (701) fixedly connected to the top of the base (11), and a fixed ring (703) is rotatably connected to the side wall of the support plate (701) via a second rotating shaft (702). A plurality of arrayed second sleeves (705) are fixedly connected to the side wall of the fixed ring (703), and a sliding disk (706) is slidably connected inside the second sleeve (705). A second sleeve rod (707) is connected to the end of the sliding disk (706), and a metal ball (708) is fixedly connected to the other end of the second sleeve rod (707). A third spring (709) is sleeved on the side wall of the second sleeve rod (707). A friction ring (704) is fixedly connected to the side wall of the support plate (701), and the rotation of the second rotating shaft (702) is driven by a second pushing mechanism.

7. A Bluetooth speaker with drop-proof function according to claim 6, characterized in that: The second pushing mechanism includes a rotating disk (801) fixedly connected to one end of the second rotating shaft (702), and a plurality of arrayed protrusions (802) are fixedly connected to the side wall of the rotating disk (801). The top of the base (11) is connected to a moving block (803) through a second reset mechanism. A sliding groove (804) is provided on the side wall of the moving block (803). A sliding plate (805) is slidably connected in the sliding groove (804). A fourth spring (809) is fixedly connected between the sliding plate (805) and the sliding groove (804). A plurality of arrayed triangular blocks (806) are fixedly connected to the side wall of the sliding plate (805). The triangular blocks (806) include a second inclined surface (807) and a limiting surface (808). The movement of the moving block (803) is pushed by a third pushing mechanism.

8. A Bluetooth speaker with drop-proof function according to claim 7, characterized in that: The second reset mechanism includes two symmetrically arranged third sleeves (901) fixedly connected to the top of the base (11), and a third sleeve rod (902) is inserted inside the third sleeve (901). The upper end of the third sleeve rod (902) is fixed to the bottom of the moving block (803), and a fifth spring (903) is sleeved on the side wall of the third sleeve (901).

9. A Bluetooth speaker with drop-proof function according to claim 7, characterized in that: The third pushing mechanism includes a connecting plate (1001) fixedly connected to the bottom of the speaker body (1), and a lever (1003) is rotatably connected to the side wall of the connecting plate (1001) via a third rotating shaft (1002). A sliding groove (1005) is provided on the side wall of the lever (1003), and a sliding pin (1004) is slidably connected in the sliding groove (1005). The sliding pin (1004) is fixed to the side wall of the moving block (803), and the lever (1003) slides on the top of the baffle (407).

Images