An extensible modular soundbar

Abstract

This invention belongs to the field of speaker technology, specifically an expandable modular speaker, including a body, a speaker, and a circuit device. It also includes: a first circular hole at the lower end of the body; a connecting assembly mounted on the body, the connecting assembly further including: a first circular ring rotatably mounted on the body; several plates slidably mounted on the body; a connecting rod for driving the plates to slide, one end of the connecting rod being rotatably connected to the first circular ring, and the other end of the connecting rod being rotatably connected to a plate; a second circular ring slidably mounted on the body; a first ratchet fixedly mounted on the outer circumference of the first circular ring; a first check block mounted on the body, the first check block having a telescopic structure, the first check block being used to limit the unidirectional rotation of the first ratchet; and a first spring mounted between the second circular ring and the first ratchet. Through the connecting assembly, two speakers can be assembled simply by pressing them together, making it convenient to use.

Description

Technical Field

[0001] This invention belongs to the field of speakers, specifically an expandable modular speaker. Background Technology

[0002] To produce stereo sound when playing audio and video, televisions typically have multiple speakers inside. The number of speakers depends on the design and size of the television. To facilitate production and installation, expandable modular speakers are needed to accommodate televisions of different sizes.

[0003] A patent application with publication number CN206542556U discloses an expandable modular thin speaker, including a cabinet and a first connecting part disposed at one end of the cabinet; a second connecting part disposed at the other end of the cabinet, the second connecting part engaging with the first connecting part; a woofer and a mid-high frequency speaker installed in the cabinet; and an expansion action is achieved by inserting the first connecting parts of two adjacent modular thin speakers into the second connecting part.

[0004] In the above solution, when the speakers are expanded, the two adjacent speakers are connected by a snap-fit ​​method. If the connection is not tight, the speakers will vibrate during transportation, which may cause the connection point of the speakers to separate.

[0005] Therefore, the present invention provides an expandable modular 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 this invention to solve its technical problem is as follows: An expandable modular speaker, comprising a body, a speaker, and a circuit device, further comprising: a first circular hole opened at the lower end of the body; a connecting assembly mounted on the body, the connecting assembly further comprising: a first circular ring rotatably mounted on the body; several plates slidably mounted on the body; a connecting rod for driving the plates to slide, one end of the connecting rod being rotatably connected to the first circular ring, and the other end of the connecting rod being rotatably connected to the plates; a second circular ring slidably mounted up and down on the body, the second circular ring having a first sliding groove, the first circular ring having a protrusion, the first circular ring being slidably connected to the second circular ring through the protrusion; a first ratchet fixedly mounted on the outer periphery of the first circular ring; a first check block mounted on the body, the first check block having a telescopic structure, the first check block being used to restrict the unidirectional rotation of the first ratchet; and a first spring mounted between the second circular ring and the first ratchet.

[0008] Preferably, the first circular hole has several second frustum holes, and the connecting assembly also includes several circular rods fixedly installed on the plate. The circular rods are used to insert into the second frustum holes, and the circular rods adopt a telescopic structure.

[0009] Preferably, the connecting assembly further includes: a friction plate slidably mounted on the plate; and a second spring mounted between the friction plate and the plate.

[0010] Preferably, the device further includes a wiring assembly installed on the body, the wiring assembly further including: a plug slidably installed on the upper end of the body; a connector fixedly installed on the lower end of the body, both the plug and the connector being connected to the circuit device; and a push plate slidably installed inside the body, the plug being installed on the push plate.

[0011] Preferably, the wiring assembly further includes: a No. 3 ring rotatably mounted on the machine body, the No. 3 ring being rotatably connected to the machine body and threadedly connected to the push plate; a No. 2 ratchet mounted on the outer circumference of the No. 3 ring; a No. 3 spring mounted between the No. 2 ratchet and the machine body; and a No. 2 check block slidably mounted on the machine body, the No. 2 check block having a telescopic structure, the No. 2 check block being used to restrict the No. 2 ratchet to rotate only in one direction.

[0012] Preferably, the first check block is rotatably connected to the machine body, and a slider is slidably mounted on the machine body, with the first check block slidably connected to the slider.

[0013] Preferably, it further includes: a groove formed on one side of the body, the slider being slidably connected to the groove; and a protrusion slidably mounted on the slider, the protrusion being located within the groove.

[0014] Preferably, it further includes: a first gear rotatably mounted on the third ring, the first gear driving the second ratchet in one direction; and a transmission assembly rotatably mounted on the machine body, the transmission assembly being used to drive the first gear and the first ratchet.

[0015] Preferably, the length of the plate is greater than the depth of the first circular hole, the circular block is slidably connected to the body, and a fourth spring is provided between the circular block and the body.

[0016] Preferably, the body has a plurality of first-order circular holes and a plurality of connecting components, wherein the number of first-order circular holes is the same as the number of connecting components.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The expandable modular speaker of the present invention, by setting a plate and a first circular hole, presses the plate on one speaker to the first circular hole on another speaker to connect the two speakers. With the help of a second frustum hole and a round rod, the round rod is inserted into the second frustum hole during the connection of the two speakers, which further increases the firmness of the connection between the speakers and avoids the problem of the expanded speaker separating due to vibration during transportation.

[0019] 2. The expandable modular speaker of the present invention, by setting a wiring component, can automatically connect the circuit devices of the two speakers when connecting two speakers. Compared with the existing expandable speakers, it is not necessary to set the wiring of the circuit device externally and then uniformly process the wiring on the cabinet after all speakers are connected. This method is more convenient for speaker expansion. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the body of the present invention;

[0023] Figure 3 This is a cross-sectional view of the side of the body of the present invention;

[0024] Figure 4 This is a partial cross-sectional view of the back of the body of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the first ring of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the No. 1 slide groove of the present invention;

[0027] Figure 7 This is a cross-sectional view of the first ring and the first block of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the round rod of the present invention;

[0029] Figure 9 This is a schematic diagram of the push plate of the present invention;

[0030] In the diagram: 1. Body; 2. Speaker; 3. Circuit device; 4. Circular block; 5. Hole No. 1; 6. Connecting assembly; 61. Ring No. 1; 62. Plate; 63. Connecting rod; 64. Ring No. 2; 65. Slide No. 1; 66. Spring No. 1; 67. Ratchet No. 1; 68. Check block No. 1; 69. Circular rod; 610. Friction plate; 611. Spring No. 2; 7. Frustum No. 2; 8. Wiring assembly; 81. Plug; 82. Connector; 83. Push plate; 84. Ring No. 3; 85. Ratchet No. 2; 86. Spring No. 3; 87. Check block No. 2; 9. Slider; 10. Groove; 11. Protrusion; 12. Gear No. 1; 13. Transmission assembly; 14. Spring No. 4. Detailed Implementation

[0031] 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. Example 1

[0032] like Figure 1-9 As shown, an scalable modular speaker according to an embodiment of the present invention includes a body 1, a plurality of speakers 2, and a circuit device 3. The circuit device 3 and speakers 2 are fixedly installed inside the body 1. The speaker also includes: a first circular hole 5 opened at the lower end of the body 1; a connecting assembly 6 installed on the body 1, the connecting assembly 6 further including: a first circular ring 61 rotatably installed on the body 1; a plurality of plates 62 slidably installed on the body 1; and a connecting rod 63 for driving the plates 62 to slide. One end of the connecting rod 63 is rotatably connected to the first circular ring 61, and the other end of the connecting rod 63... One end is rotatably connected to the plate 62; a second ring 64 is slidably mounted on the machine body 1, the second ring 64 has a first groove 65, the first ring 61 has a protrusion, the first ring 61 is slidably connected to the second ring 64 through the protrusion; a first ratchet 67 is fixedly mounted on the outer circumference of the first ring 61; a first check block 68 is mounted on the machine body 1, the first check block 68 adopts a telescopic structure, the first check block 68 is used to limit the unidirectional rotation of the first ratchet 67; a first spring 66 is installed between the second ring 64 and the first ratchet 67.

[0033] Specifically, the speaker body has a modular structure, where speaker 2 is the sound-generating module and circuit device 3 is the crossover module. When assembling a single speaker, the modules are sequentially installed inside the body 1 to complete the assembly of a single speaker. To accommodate different types or sizes of televisions, multiple speakers need to be spliced ​​together. During splicing, multiple assembled bodies 1 can be joined together to form an expandable speaker. In existing devices, when expanding, adjacent speakers are connected by a snap-fit ​​method, which is not tight. During transportation, vibration can occur, potentially causing the speaker connections to separate. The first check block 68 restricts the first ratchet 67 to rotate only counterclockwise. The speaker 2 is an electrodynamic loudspeaker 2. The principle of the loudspeaker 2 is similar to placing a current-carrying wire in a uniform magnetic field, with the wire perpendicular to the magnetic field lines. A coil carrying an alternating current signal moves in the magnetic field, causing the diaphragm connected to the loudspeaker 2 to vibrate, which in turn causes the cone to vibrate. The sound waves are then transmitted through the air medium. The circuit device 3 separates the input analog audio signal into different parts such as high, mid, and low frequencies, and then sends them to the corresponding loudspeakers 2. When the speaker is working, the circuit device 3 first divides the full-frequency sound signal into several frequency bands, and then assigns these frequency bands to the corresponding loudspeakers 2. The loudspeakers 2 use electrical energy to drive the diaphragm to push the air, thereby producing sound. When expanding the speaker enclosure, the upper surface of one speaker is aligned with the lower surface of the other. Pressure is then applied to the upper and lower surfaces of both speakers, reducing the distance between them. The second ring 64 of the lower speaker is pressed downwards, causing it to move downwards. This downward movement of the second ring 64 drives the first slide 65 downwards simultaneously. The downward movement of the first slide 65 causes the first ring 61 to rotate counter-clockwise. The rotation of the first ring 61 causes the connecting rod 63 to rotate, pulling the mounting plate 62 towards the inner wall of the first circular hole 5 until the mounting plate 62 is in close contact with the inner wall of the first circular hole 5. At this point, the upper and lower surfaces of the two speakers are in close contact, connecting the speaker enclosures 1, thus completing the expansion operation. The first check block 68 restricts the first ratchet 67 from rotating clockwise, thus preventing the first ring 61 from rotating clockwise. The mounting plate 62 cannot move. Due to the compression between the mounting plate 62 and the first circular hole 5, this method has greater friction than the snap-fit ​​method, improving the aforementioned problems. It only requires pressing against each other, making it convenient to use. Furthermore, compared to the snap-fit ​​method, the overall length of the mounting plates 62 is less than the diameter of the first circular hole 5, so precise alignment is not required. During connection, the two speakers can automatically adjust, making it convenient to use. With the first ring 61, the upper end of the first ring 61 is higher than the length of the mounting plate 62, improving the problem of the mounting plate 62 breaking due to impact during transport.

[0034] like Figure 7 , 8As shown, a number of second frustum holes 7 are provided in the first circular hole 5. The connecting component 6 also includes a number of circular rods 69 fixedly installed on the plate 62. The circular rods 69 are used to be inserted into the second frustum holes 7. The circular rods 69 adopt a telescopic structure.

[0035] Specifically, the telescopic rod 69 is used to accommodate the vertical movement of the first circular hole 5 and the mounting plate 62. When the mounting plate 62 moves closer to the inner wall of the first circular hole 5, the rod 69 moves closer to the inner wall of the first circular hole 5 simultaneously. During the movement, the rod 69 contacts the second frustum hole 7 until it is inserted into the second frustum hole 7. By inserting the rod 69 into the second frustum hole 7, the connection between the speakers is further strengthened. In addition, the two speakers can be positioned and aligned using the second frustum hole 7, making them convenient to use.

[0036] like Figure 8 As shown, the connecting assembly 6 also includes: a friction plate 610 slidably mounted on the plate 62; and a second spring 611 mounted between the friction plate 610 and the plate 62.

[0037] Specifically, when the mounting plate 62 approaches the inner wall of the first circular hole 5, the friction plate 610 first contacts the first circular hole 5. Then, the mounting plate 62 continues to move, reducing the distance between the mounting plate 62 and the friction plate 610. The second spring 611 is compressed. After the connection is completed, the elasticity of the second spring 611 increases the friction between the friction plate 610 and the inner wall of the first circular hole 5, further increasing the firmness of the connection and preventing the two speakers from shaking relative to each other, which could cause the round rod 69 to break.

[0038] like Figure 1 , 4 As shown in Figure 9, the device also includes a wiring assembly 8 installed on the body 1. The wiring assembly 8 further includes: a plug 81 slidably installed on the upper end of the body 1; a connector 82 fixedly installed on the lower end of the body 1, both the plug 81 and the connector 82 being connected to the circuit device 3; and a push plate 83 slidably installed inside the body 1, with the plug 81 installed on the push plate 83.

[0039] Specifically, after connecting the two speakers, the push plate 83 on one side of the connection surface can be moved upward, causing the plug 81 to move upward synchronously until the connector 82 is inserted into the connector 82 of the other speaker, so as to realize the connection of the circuit device 3 of the two speakers. The existing expandable speakers place the wiring of the circuit device 3 on the outside. After all the speakers are connected, the wiring on the cabinet is uniformly processed. This method does not require the wiring to be placed on the outside, which is convenient for transportation and connection.

[0040] like Figure 4 , 5As shown, the wiring assembly 8 also includes: a third ring 84 rotatably mounted on the body 1, the third ring 84 being rotatably connected to the body 1 and threadedly connected to the push plate 83; a second ratchet 85 mounted on the outer periphery of the third ring 84; a third spring 86 mounted between the second ratchet 85 and the body 1; and a second check block 87 slidably mounted on the body 1, the second check block 87 having a telescopic structure, the second check block 87 being used to restrict the second ratchet 85 to rotate only in one direction.

[0041] Specifically, the second check block 87 restricts the second ratchet 85 to rotate only counterclockwise. In the initial state, the third spring 86 is twisted. When connecting the two speakers, the distance between the two speakers decreases. After the round rod 69 is inserted into the second frustum hole 7, the two speakers are aligned. At this time, the upper end of the second check block 87 contacts the surface of the other speaker and moves downward under the push of the other speaker until the second check block 87 is fully inserted into the body 1. At this time, the second check block 87 and the second ratchet 85 are no longer in contact. Therefore, the second ratchet 85 rotates clockwise under the action of the third spring 86. The rotation of the second ratchet 85 drives the third ring 84 to rotate synchronously. The rotation of the third ring 84 causes the push plate 83 to move upward. The upward movement of the push plate 83 can drive the plug 81 to be inserted into the connector 82, so as to realize the connection of the two speaker circuit devices 3, which is convenient to use.

[0042] like Figure 2 , 3 As shown in Figure 5, the first check block 68 is rotatably connected to the machine body 1, and the slider 9 is slidably installed on the machine body 1. The first check block 68 is slidably connected to the slider 9.

[0043] Specifically, a step is provided above the first slide 65. When the second ring 64 drives the first slide 65 to slide downward relative to the first ring 61, the first ring 61 rotates counterclockwise. Then, when the first ring 61 rotates clockwise, the second ring 64 remains stationary. When one of the speakers malfunctions, the slider 9 is slid backward. The movement of the slider 9 causes the first check block 68 to move synchronously. Since the first check block 68 is rotatably connected to the body 1, the movement trajectory of the first check block 68 is an arc. The first check block 68 rotates clockwise, which causes the first ratchet 67 to rotate clockwise synchronously. The clockwise rotation of the first ratchet 67 causes the first ring 61 to rotate clockwise. The clockwise rotation of the first ring 61 pushes the plate 62 towards the central axis of the first circular hole 5 through the connecting rod 63, so that the plate 62 does not contact the first circular hole 5. At this time, the two speakers are separated, which is convenient for maintenance and use.

[0044] like Figure 1 , 5As shown, it also includes: a groove 10 formed on one side of the body 1, a slider 9 slidably connected to the groove 10; and a protrusion 11 slidably mounted on the slider 9, the protrusion 11 being located inside the groove 10.

[0045] Specifically, by setting the protrusion 11 and the groove 10, the movement of the slider 9 and the check block is restricted. At the same time, the slider 9 cannot be moved when the protrusion 11 is not pressed into the slider 9, so as to avoid accidental contact with the slider 9 and the speaker separation.

[0046] like Figure 5 As shown, it also includes: a first gear 12 rotatably mounted on the third ring 84, the first gear 12 and the second ratchet 85 being driven in one direction; and a transmission assembly 13 rotatably mounted on the body 1, the transmission assembly 13 being used to drive the first gear 12 and the first ratchet 67.

[0047] Specifically, gear 12 and ratchet 85 are driven in one direction to avoid mutual interference during assembly. When check block 68 drives ratchet 67 to rotate clockwise, ratchet 67 drives gear 12 to rotate counterclockwise through one-way transmission assembly 13. The counterclockwise rotation of gear 12 causes ring 84 to rotate counterclockwise, which in turn causes push plate 83 to move downward. The movement of push plate 83 causes plug 81 to move downward synchronously until push plate 83 and plug 81 are separated. Through transmission assembly 13, plug 81 and connector 82 can be separated synchronously when separating the two speakers, which is convenient to use.

[0048] like Figure 4 , 7 As shown, the length of the plate 62 is greater than the depth of the first circular hole 5. The circular block 4 and the body 1 are connected vertically and horizontally. A fourth spring 14 is provided between the circular block 4 and the body 1.

[0049] Specifically, if the circular block 4 cannot move, the friction plate 610 needs to be in close contact with the inner wall of the first circular hole 5 while moving upward along the inner wall of the first circular hole 5. Therefore, a large force is required when pressing the two speakers. During the process of inserting the adhesive plate 62 into the first circular hole 5 and contacting the inner wall of the first circular hole 5, the upper surface of the adhesive plate 62 first contacts the inner wall of the first circular hole 5, and then the friction plate 610 contacts the inner wall of the first circular hole 5. In order to increase the friction between the friction plate 610 and the inner wall of the first circular hole 5, the adhesive plate 62 continues to move towards the inner wall of the first circular hole 5. At this time, the distance between the two speakers continues to decrease. Therefore, the adhesive plate 62 pushes the circular block 4 upward, thus improving the above problem. Example 2

[0050] like Figure 1 , 2As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the body 1 has a plurality of first circular holes 5 and a plurality of connecting components 6, the number of first circular holes 5 being the same as the number of connecting components 6.

[0051] Specifically, by setting multiple sets of No. 1 round holes 5 and connecting components 6, the connection between the two speakers is made more secure.

[0052] Working principle: When the speaker is working, the full-frequency sound signal is first divided into several frequency bands by the circuit device 3, and then these frequency bands are assigned to the corresponding loudspeakers 2. The loudspeakers 2 drive the diaphragm with electrical energy to push air, thereby producing sound. When expanding the speaker, the upper surface of one speaker is aligned with the lower surface of another speaker. Then, pressure is applied to the upper and lower surfaces of the two speakers, reducing the distance between them. The second ring 64 of the lower speaker is pressed downwards, and the second ring... The downward movement of 64 causes the first slide 65 to move downward simultaneously. The downward movement of the first slide 65 causes the first ring 61 to rotate counterclockwise. The rotation of the first ring 61 causes the connecting rod 63 to rotate. The rotation of the connecting rod 63 pulls the plate 62 towards the inner wall of the first hole 5 until the plate 62 is in close contact with the inner wall of the first hole 5. At this time, the upper and lower surfaces of the two speakers are in close contact, connecting the bodies 1 of the two speakers, thus realizing the expansion action. The first check block 68 restricts the first ratchet 67 from moving clockwise. As the needle rotates, the first ring 61 cannot rotate. When the plate 62 approaches the inner wall of the first hole 5, the rod 69 simultaneously approaches the inner wall of the first hole 5. During this movement, the rod 69 contacts the second frustum hole 7 until it is fully inserted. When connecting the two speakers, the distance between them decreases. After the rod 69 is inserted into the second frustum hole 7, the two speakers are aligned. At this point, the upper end of the second check block 87 is aligned with the other speaker. The surface contacts the second speaker and moves downward under the push of the other speaker until the second check block 87 is fully inside the body 1. At this time, the second check block 87 and the second ratchet 85 are not in contact. Therefore, the second ratchet 85 rotates clockwise under the action of the third spring 86. The rotation of the second ratchet 85 drives the third ring 84 to rotate synchronously. The rotation of the third ring 84 causes the push plate 83 to move upward. The upward movement of the push plate 83 can drive the plug 81 to be inserted into the connector 82 to realize the connection of the two speaker circuit devices 3.

[0053] 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 scalable modular speaker, comprising a housing, a plurality of speakers, and a circuit device, wherein the circuit device and the speakers are fixedly mounted within the housing, characterized in that, Also includes: A circular block mounted on the machine body; The first circular hole is formed on the circular block; A connecting assembly mounted on the machine body; Wiring assembly installed on the machine body; The connection component includes: Rotate the No. 1 ring mounted on the machine body; Several sliding plates are mounted on the machine body; A connecting rod is used to drive the sliding of the patch. One end of the connecting rod is rotatably connected to the first ring, and the other end of the connecting rod is rotatably connected to the patch. A second ring is slidably mounted on the body. A first groove is formed on the second ring. The first ring has a protrusion and is slidably connected to the second ring through the protrusion. A ratchet is fixedly installed on the outer circumference of the first ring; A first check block is installed on the machine body. The first check block adopts a telescopic structure and is used to restrict the first ratchet to rotate only in one direction. Spring No. 1 is installed between the second ring and the first ratchet; When expanding a modular speaker, align the upper surface of one modular speaker with the lower surface of another. Then, apply pressure to the upper and lower surfaces of the two modular speakers to reduce the distance between them. The second ring of the lower modular speaker moves downward under pressure, causing the first slide to move downward simultaneously. This causes the first ring to rotate counterclockwise, which in turn rotates the connecting rod, pulling the mounting plate towards the inner wall of the first hole of the other modular speaker. This continues until the mounting plate is in close contact with the inner wall of the first hole of the other modular speaker, connecting the two modular speaker bodies and thus completing the expansion process. The wiring assembly includes: A plug that is slidably mounted on the upper part of the body; A connector is fixedly installed at the lower end of the machine body, and both the plug and the connector are connected to the circuit device; A push plate is slidably mounted inside the body of the machine, and the plug is mounted on the push plate; The No. 3 ring is rotatably mounted on the machine body, the No. 3 ring is rotatably connected to the machine body, and the No. 3 ring is threadedly connected to the push plate; The second ratchet is installed on the outer circumference of the third ring; Spring number three is installed between the second ratchet and the machine body; A second check block is slidably mounted on the machine body. The second check block has a telescopic structure and is used to restrict the second ratchet to rotate only in one direction. When connecting two modular speakers, the upper end of the second check block contacts the surface of the other modular speaker and moves downward under the push of the other modular speaker until the second check block is fully inserted into the body. At this time, the second check block is not in contact with the second ratchet. Therefore, the second ratchet rotates clockwise under the action of the third spring. The rotation of the second ratchet drives the third ring to rotate synchronously. The rotation of the third ring causes the push plate to move upward. The upward movement of the push plate causes the plug to be inserted into the connector of the other modular speaker, so as to realize the connection of the circuit devices of the two modular speakers. The modular speaker also includes a gear number one that is rotatably mounted on the third ring, and the gear number one has a one-way transmission with the second ratchet. A transmission assembly mounted on the body is rotated, the transmission assembly being used to drive the first gear and the first ratchet; the transmission assembly being used to synchronously separate the plug and connector when separating the two modular speakers.

2. The scalable modular speaker according to claim 1, characterized in that: The first circular hole has several second frustum holes. The connecting assembly also includes several circular rods fixedly installed on the plate. The circular rods are used to connect with the second frustum holes of another modular speaker. The circular rods adopt a telescopic structure.

3. The scalable modular speaker according to claim 2, characterized in that: The first check block is rotatably connected to the machine body, and a slider is slidably installed on the machine body, with the first check block slidably connected to the slider.

4. A scalable modular speaker according to claim 3, characterized in that: Also includes: A groove is formed on one side of the machine body, and the slider is slidably connected to the groove; A protrusion mounted on the slider slides up and down, and the protrusion is located within the groove.

5. A scalable modular speaker according to claim 4, characterized in that: The length of the plate is greater than the depth of the first circular hole. The circular block is slidably connected to the body. A fourth spring is provided between the circular block and the body.

6. A scalable modular speaker according to claim 5, characterized in that: The body contains a number of No. 1 circular holes and a number of connecting components, the number of No. 1 circular holes being the same as the number of connecting components.

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