Bluetooth sound box with NFC rapid pairing function

Abstract

The invention relates to the technical field of Bluetooth sound boxes, in particular to a Bluetooth sound box with an NFC quick pairing function, which comprises a sound box main body, a suction cup is arranged at the bottom of the sound box main body, a compensation device is arranged on the sound box main body, the compensation device is communicated with the interior of the suction cup, and the compensation device is used for extracting air in the suction cup; a control device is arranged on the sound box main body, the control device controls the start and stop of the compensation device according to the storage amount of air in the suction cup, the compensation device comprises a mounting seat fixedly mounted at the bottom of the sound box main body, and the suction cup is fixedly mounted at the bottom end of the mounting seat; a mounting cavity is formed in the mounting seat, a communicating hole is formed in the outer side wall surface of the mounting seat, and the communicating hole is communicated with the mounting cavity. The placement stability of the Bluetooth sound box on the placement plane is improved, and the problem that an existing Bluetooth sound box is low in anti-skid performance and reliability is solved.

Description

Technical Field

[0001] This invention relates to the field of Bluetooth speaker technology, specifically a Bluetooth speaker with NFC quick pairing function. Background Technology

[0002] A Bluetooth speaker is a speaker device that uses Bluetooth technology to achieve wireless connectivity. Existing Bluetooth speakers are typically in the form shown in patent number CN114071273B, entitled "Bluetooth Speaker Solution." Their portable and compact size, along with their quick and convenient connection, allows users to enjoy music anytime, anywhere. With the support of NFC technology, the pairing process for Bluetooth speakers is greatly simplified, further enhancing the convenience of the connection and gaining widespread user favor. Bluetooth speakers are therefore often the first choice for speaker devices used in outdoor activities. In outdoor applications, users, for cleanliness and safety reasons, usually place Bluetooth speakers on tabletops. However, outdoor terrain is uneven, and the tabletops used to place the speakers are often not level. Furthermore, the vibrations generated when the Bluetooth speaker emits sound can cause it to move down the tilted tabletop during vibrations, posing a risk of falling off and being damaged.

[0003] To address this issue, most existing Bluetooth speakers increase friction by adding silicone anti-slip pads to the bottom of the device to increase the friction between the speaker and the surface it's placed on, thus preventing the speaker from slipping off the table. However, this anti-slip method relies on the speaker's own weight to ensure sufficient friction. Furthermore, as the table's tilt increases, the normal force exerted by the speaker on the table decreases, making it difficult to guarantee the reliability of this anti-slip performance.

[0004] To address this, a Bluetooth speaker with NFC quick pairing functionality is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a Bluetooth speaker with NFC quick pairing function, which improves the stability of the Bluetooth speaker on its placement surface and solves the problem of low reliability of anti-slip performance in existing Bluetooth speakers.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A Bluetooth speaker with NFC quick pairing function includes a speaker body, a suction cup at the bottom of the speaker body, a compensation device on the speaker body, the compensation device being connected to the inside of the suction cup, and the compensation device being used to extract air from the suction cup; a control device on the speaker body, the control device controlling the start and stop of the compensation device according to the amount of air in the suction cup.

[0008] Based on this design, when the speaker body is placed on a table, the present invention first uses a suction cup to adhere it to the table, thus firmly fixing the speaker body to the surface. At this point, without relying entirely on the speaker's own weight, sufficient damping force exists between the speaker and the table to prevent the speaker from sliding, improving the stability of the Bluetooth speaker on its placement surface. Furthermore, if the suction cup leaks air during prolonged suction, causing a decrease in suction power, the amount of air inside the suction cup will increase, thus increasing the volume of the space between the suction cup and the table. The control device can detect this volume change and activate a compensation device, which then extracts the air from this space, restoring the suction power of the suction cup and ensuring stable damping force between the speaker and the table, further improving the stability of the Bluetooth speaker on its placement surface.

[0009] Preferably, the compensation device includes a mounting base fixedly installed at the bottom of the speaker body, and the suction cup fixedly installed at the bottom end of the mounting base; the mounting base has a mounting cavity, and a connecting hole is formed on the outer wall of the mounting base, the connecting hole communicating with the mounting cavity; a support plate is movably installed in the mounting cavity, and an airbag is fixedly installed at the top of the support plate, the top of the airbag being fixedly connected to the mounting cavity; a connecting pipe is fixedly installed on the airbag, the connecting pipe passing through the support plate and the side wall of the mounting cavity and communicating with the inside of the suction cup; a one-way exhaust assembly is provided on the airbag; a mounting compartment is formed at the bottom end of the speaker body, and a drive motor is fixedly installed in the mounting compartment, the drive motor being connected to a power source inside the speaker body, a drive wheel is fixedly installed at the output end of the drive motor, a push rod is rotatably installed on the drive wheel, and the other end of the push rod is rotatably connected to the support plate.

[0010] With this setup, when the compensation device is activated, the drive motor first rotates the drive wheel, causing the push rod to reciprocate up and down periodically. When the push rod pushes downwards, the support plate simultaneously pulls the airbag downwards, causing it to expand and creating low pressure inside. At this time, under the action of the one-way exhaust assembly, air can only enter the airbag through the connecting pipe. Thus, the air inside the suction cup is extracted, reducing the pressure inside the suction cup and maintaining a stable air pressure. This ensures stable suction force and provides stable damping force between the speaker and the desktop, improving the stability of the Bluetooth speaker on its placement surface.

[0011] Preferably, the control device includes a mounting hole at the bottom of the mounting cavity, a mating hole on the support plate, and an annular connecting membrane fixedly installed on the inner wall of the mounting hole; a support rod is movably installed in both the mounting hole and the mating hole, the connecting membrane surrounds the support rod and is fixedly connected to the support rod, a support plate is fixedly installed at the bottom end of the support rod, a support spring is fixedly installed on the support plate, and the other end of the support spring is fixedly installed at the bottom end of the mounting base; a trigger switch is fixedly installed in the mounting cavity, the trigger switch is electrically connected to the drive motor, and the support rod is used to abut against the trigger switch.

[0012] With this setup, when the speaker is placed on a table, the spring keeps the support plate pressed against the table, so the height of the top of the support rod relative to the table can be considered constant. When the suction cup is pressed to generate sufficient suction, the volume inside the suction cup decreases, and correspondingly, the height of the internal space of the suction cup decreases. At this time, the support rod just comes into contact with the trigger switch, so the drive motor remains in the off state, and the airbag remains in the deflated, contracted state.

[0013] When the suction cup leaks air during prolonged suction, reducing its suction power, the amount of air inside the suction cup increases, increasing the space between the suction cup and the table. This increased internal height of the suction cup causes the support rod to lose sufficient resistance to the trigger switch. The trigger switch is then activated, starting the motor and causing the support plate to pull the airbag downwards, creating negative pressure. This draws out the air from the suction cup, restoring its suction power and ensuring stable damping force between the speaker and the table, thus improving the stability of the Bluetooth speaker on its surface.

[0014] Preferably, the one-way exhaust assembly includes a first ventilation slit and a second ventilation slit on the airbag, and a first shielding plate and a second shielding plate are provided on the airbag; the first shielding plate is located on the outside of the airbag and cooperates with the first ventilation slit; the second shielding plate is fixedly installed on the inside of the airbag and cooperates with the second ventilation slit; the connecting pipe communicates with the airbag at the location of the second ventilation slit.

[0015] With this setup, when the airbag is pushed downwards by the support plate, creating negative pressure inside, the first baffle plate, installed on the outside of the airbag, will adhere tightly to the first vent seam under the negative pressure, preventing air from the outside environment from entering the airbag through the first vent seam. Therefore, air can only attempt to enter the airbag through the second vent seam. Since the second baffle plate is installed on the inside of the airbag, when air enters the airbag through the second vent seam, the second baffle plate will be pushed open by the pressure difference, rather than adhering tightly to the second vent seam, thus allowing gas to pass through. The second vent seam is connected to the inside of the suction cup via a connecting tube, allowing air inside the suction cup to be extracted by the airbag. This restores the suction force of the suction cup, helping to ensure stable damping force between the speaker and the tabletop, improving the stability of the Bluetooth speaker on its placement surface.

[0016] Preferably, two pull ropes are fixedly installed on the shielding plate, and the other ends of the two pull ropes are fixedly connected to the support plate and the inner wall of the mounting cavity, respectively; the ends of the two pull ropes that are not connected to the shielding plate are always closer to the center of the mounting base than the ends that are connected to the shielding plate.

[0017] With this setup, due to the relative positions of the two ends of the pull rope, as the support plate expands the airbag, the pull ropes will collectively pull the shielding plate towards the first vent, tightly covering it. This allows the shielding plate to receive additional stable external mechanical force while blocking the first vent, ensuring its sealing effect. This, in turn, helps ensure that the airbag draws air from within the suction cup when using negative pressure, improving the suction efficiency. Therefore, it facilitates the rapid recovery of suction power, shortens the duration of suction power fluctuations, helps maintain stable damping force between the speaker and the tabletop, and improves the stability of the Bluetooth speaker on its placement surface.

[0018] Furthermore, this design allows the connecting and limiting function of the pull rope to allow the shielding plate to detach entirely from the outer surface of the airbag, eliminating the need for direct fixation. Thus, when the airbag attempts to expel excess gas, the shielding plate can completely detach from the outer surface, fully exposing the ventilation seam and enabling the gas inside the airbag to escape quickly with minimal obstruction. This helps shorten the airbag's deflation time, allowing it to quickly return from a fully inflated state to a deflated state, ready to draw gas from the suction cup again, thereby improving the efficiency of the invention.

[0019] Preferably, a reinforcing block 1 and a reinforcing block 2 are fixedly installed on the first and second ventilation seams, respectively. Both the first and second reinforcing blocks have ventilation holes. The first shielding plate abuts against the first reinforcing block, and the second shielding plate abuts against the second reinforcing block. A silicone sealing nail is fixedly installed on the side wall of the first shielding plate near the first reinforcing block. The sealing nail is used to abut against the ventilation holes on the first reinforcing block.

[0020] This design allows for the reinforcement of the structures of ventilation seams one and two using reinforcing blocks, reducing the risk of damage caused by stress concentration in the cracked structures and extending the product's lifespan. Simultaneously, by incorporating sealing pins and ventilation holes, when the shielding plate one is pulled by the tension of the rope to close ventilation seam one, the sealing pins can be embedded in the ventilation holes, achieving a better sealing effect through the elastic deformation of the sealing pins.

[0021] Based on this, a rigid guide strip can be fixedly installed at the tip of the sealing pin, and by reasonably selecting parameters, the guide strip can always extend into the vent hole on the reinforcing block. Therefore, even if the shielding plate completely leaves the outer surface of the airbag, when the shielding plate needs to cover the vent seam again, the guide strip can guide the sealing pin to the vent hole, thus ensuring that the sealing pin always maintains a predetermined fit with the vent hole, improving the reliability of the invention.

[0022] Preferably, the connecting tube is a silicone flexible tube, the mating hole is a square hole, and the cross-section of the support rod is rectangular.

[0023] By using a silicone flexible tube as the connecting tube, the airbag is compressed as the support plate moves upward. During the airbag's contraction, the connection between the airbag and the connecting tube is also lifted upwards. However, the original length of the connecting tube remains constant. Therefore, the connection between the connecting tube and the airbag will bend and stretch, resulting in deformation and a significant reduction in the inner diameter of the connecting tube, increasing the resistance to gas flow. This helps reduce the risk of gas flowing back into the suction cup during the compression of the airbag by the support plate, thereby improving the exhaust efficiency of this invention. Furthermore, the support rod is a rectangular rod that mates with the mating hole. This allows the support plate's rotation to be restricted, ensuring the relative position between the first shielding plate and the first venting seam, and ensuring that the pulling rope properly engages with the first venting seam when pulling the first shielding plate.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. When placing the speaker body on a table, this invention utilizes suction cups to firmly attach it to the table, thus securing it securely. This eliminates the need to rely solely on the speaker's own weight, ensuring sufficient damping force between the speaker and the table to prevent slippage and improving the stability of the Bluetooth speaker on its surface.

[0026] 2. Furthermore, when the suction cup leaks air during prolonged suction, causing a decrease in suction power, the amount of air inside the suction cup (between the suction cup and the table) will increase, thus increasing the volume of the space between the suction cup and the table. The control device can detect this volume change and activate the compensation device. The compensation device then extracts the air from this space, restoring the suction power of the suction cup and ensuring the stability of the damping force between the speaker and the table, thereby improving the placement stability of the Bluetooth speaker on its surface.

[0027] 3. By setting up pull ropes, as the support plate expands the airbag, the pull ropes will collectively pull the shielding plate towards the first ventilation seam, tightly covering it. This allows the shielding plate to receive additional stable external mechanical force while blocking the ventilation seam, ensuring its sealing effect. This, in turn, helps ensure that the airbag draws air from within the suction cup when using negative pressure, improving the suction efficiency. Therefore, it facilitates the rapid recovery of suction power and shortens the duration of suction power fluctuations. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of a planar cross-section of the present invention;

[0030] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0031] Figure 4 for Figure 2 A magnified view of part B in the diagram;

[0032] Figure 5 for Figure 3 A magnified view of part C in the middle;

[0033] Figure 6 for Figure 3 A magnified view of part D in the middle;

[0034] Figure 7 for Figure 6 A schematic diagram showing the state of the airbag extracting air from the suction cup;

[0035] Figure 8 for Figure 2 The diagram shows the state of the structure when the airbag is deployed by the support plate;

[0036] Figure 9 This is a schematic diagram of the cross-section of the strut.

[0037] In the diagram: 1. Speaker body; 2. Mounting base; 3. Suction cup; 4. Connecting hole; 11. Mounting chamber; 12. Drive motor; 13. Drive wheel; 14. Top rod; 21. Mounting cavity; 22. Airbag; 23. Pull rope; 24. Support plate; 25. Support rod; 26. Mating hole; 31. Support plate; 32. Support spring; 211. Trigger switch; 212. Mounting hole; 213. Connecting diaphragm; 221. Connecting pipe; 222. Vent seam one; 223. Shielding plate one; 224. Reinforcing block one; 225. Vent hole; 226. Sealing nail; 227. Guide strip; 231. Vent seam two; 232. Reinforcing block two; 233. Shielding plate two. Detailed Implementation

[0038] The following description, with the aid of the accompanying drawings listed in the foregoing "Description of Drawings", will clearly illustrate the specific embodiments of the present invention, in order to enable readers to have a more complete and objective understanding of the working principle and corresponding technical effects of the present invention.

[0039] like Figures 1 to 9 The diagram illustrates a specific embodiment of the present invention. It should be noted beforehand that:

[0040] Firstly, to avoid the compensation device of this invention operating for extended periods unnecessarily, a manual switch option is included in the control program. When the manual switch button is not activated, the corresponding control program disconnects the connection circuit between the trigger switch 211 and the drive motor 12, keeping the drive motor 12 in a normally closed state to avoid unnecessary energy consumption. When the user needs to use the compensation function of the compensation device, they can press the button to activate the corresponding control program. At this time, the electrical connection between the trigger switch 211 and the drive motor 12 is established, and the trigger switch 211 can control the start and stop of the drive motor 12. Furthermore, the drive motor 12 is a servo motor to facilitate precise control and improve the motion smoothness of this invention.

[0041] Secondly, to ensure smooth communication between the connecting pipe 221 and the inside of the suction cup 3, the present invention provides corresponding through holes in both the support plate 24 and the mounting base 2, as shown in the reference. Figure 2 and Figure 3 As shown. In addition, by opening the connecting hole 4, the air that the airbag 22 discharges into the mounting cavity 21 can be discharged into the external environment through the connecting hole 4.

[0042] When the present invention is installed, the speaker body 1 is first taken out. A suction cup 3 is provided at the bottom of the speaker body 1. A compensation device is provided on the speaker body 1. The compensation device is connected to the inside of the suction cup 3. The compensation device is used to extract the air in the suction cup 3. A control device is provided on the speaker body 1. The control device controls the start and stop of the compensation device according to the amount of air in the suction cup 3. The compensation device includes a mounting base 2 fixedly installed at the bottom of the speaker body 1, and a suction cup 3 fixedly installed at the bottom of the mounting base 2. The mounting base 2 has a mounting cavity 21, and a connecting hole 4 is opened on the outer wall of the mounting base 2, which communicates with the mounting cavity 21. A support plate 24 is movably installed in the mounting cavity 21, and an airbag 22 is fixedly installed at the top of the support plate 24. The top of the airbag 22 is fixedly connected to the mounting cavity 21. A connecting pipe 221 is fixedly installed on the airbag 22, which passes through the support plate 24 and the side wall of the mounting cavity 21 and communicates with the inside of the suction cup 3. A one-way exhaust component is provided on the airbag 22. A mounting chamber 11 is opened at the bottom of the speaker body 1, and a drive motor 12 is fixedly installed in the mounting chamber 11. The drive motor 12 is connected to the power supply inside the speaker body 1. A drive wheel 13 is fixedly installed at the output end of the drive motor 12. A push rod 14 is rotatably installed on the drive wheel 13, and the other end of the push rod 14 is rotatably connected to the support plate 24. It is worth noting that the drive wheel 13 is connected to the push rod 14, and the push rod 14 is connected to the support plate 24 by a pin.

[0043] The control device includes a mounting hole 212 at the bottom of the mounting cavity 21, a mating hole 26 on the support plate 24, and an annular connecting membrane 213 fixedly installed on the inner wall of the mounting hole 212. A support rod 25 is movably installed in both the mounting hole 212 and the mating hole 26. The connecting membrane 213 surrounds the support rod 25 and is fixedly connected to it. A support plate 31 is fixedly installed at the bottom of the support rod 25, and a support spring 32 is fixedly installed on the support plate 31. The other end of the support spring 32 is fixedly installed at the bottom of the mounting base 2. A trigger switch 211 is fixedly installed in the mounting cavity 21. The trigger switch 211 is electrically connected to the drive motor 12, and the support rod 25 is used to abut against the trigger switch 211. The connecting membrane 213 completely seals the gap between the support rod 25 and the mounting hole 212, thereby ensuring the good sealing performance of the suction cup 3 and ensuring that the suction cup 3 can be used normally. At the same time, the connecting membrane 213 can also use its elasticity to allow the support rod 25 to move within the mounting hole 212, thereby enabling the invention to operate smoothly.

[0044] In addition, the one-way exhaust assembly includes a first ventilation slit 222 and a second ventilation slit 231 opened on the airbag 22. The airbag 22 is provided with a first shield 223 and a second shield 233. The first shield 223 is located on the outside of the airbag 22 and cooperates with the first ventilation slit 222. The second shield 233 is fixedly installed on the inside of the airbag 22 and cooperates with the second ventilation slit 231. The connecting pipe 221 is connected to the airbag 22 at the position of the second ventilation slit 231.

[0045] In addition, two pull ropes 23 are fixedly installed on the shielding plate 223. The other ends of the two pull ropes 23 are fixedly connected to the support plate 24 and the inner wall of the mounting cavity 21, respectively. The ends of the two pull ropes 23 that are not connected to the shielding plate 223 are always closer to the center of the mounting base 2 than the ends that are connected to the shielding plate 223. Reinforcing blocks 224 and 232 are fixedly installed on the ventilation seam 222 and ventilation seam 231, respectively. Ventilation holes 225 are opened on both reinforcing blocks 224 and 232. The shielding plate 223 abuts against the reinforcing block 224, and the shielding plate 233 abuts against the reinforcing block 232. A silicone sealing nail 226 is fixedly installed on the side wall of the shielding plate 223 near the reinforcing block 224. The sealing nail 226 is used to abut against the ventilation hole 225 on the reinforcing block 224. A rigid guide strip 227 is fixedly installed at the tip of the sealing nail 226, and the guide strip 227 always extends into the vent hole 225 on the reinforcing block 224. The connecting pipe 221 is a silicone hose, the mating hole 26 is a square hole, and the cross-section of the support rod 25 is rectangular.

[0046] When this invention is in operation, during the process of placing the speaker body 1 on the table, the suction cup 3 can first be used to adhere the speaker body 1 to the table, thereby firmly fixing the speaker body 1 to the table. At this time, without relying entirely on the speaker's own weight, sufficient damping force can be ensured between the speaker and the table to prevent the speaker from sliding on the table, thus improving the placement stability of the Bluetooth speaker on its placement surface. In addition, when the suction cup 3 leaks air during prolonged suction, causing the suction force to decrease, the amount of air between the suction cup 3 and the table, i.e., inside the suction cup 3, will increase, thereby increasing the space volume between the suction cup 3 and the table. The control device can detect this volume change and control the compensation device to activate. The compensation device then extracts the air from the space, thereby restoring the suction force of the suction cup 3, ensuring the stability of the damping force between the speaker and the table, and improving the placement stability of the Bluetooth speaker on its placement surface.

[0047] The specific working method of the compensation device is as follows: When the compensation device is activated, the drive motor 12 first drives the drive wheel 13 to rotate, so the drive wheel 13 drives the push rod 14 to perform periodic up-and-down reciprocating motion. When the push rod 14 pushes downward, the support plate 24 will simultaneously pull the airbag 22 downward to inflate the airbag 22, thereby creating a low pressure inside the airbag 22. At this time, under the action of the one-way exhaust component, air can only enter the airbag 22 through the connecting pipe 221. Thus, the air inside the suction cup 3 will be extracted, thereby reducing the pressure inside the suction cup 3, keeping the air pressure inside the suction cup 3 stable, ensuring the stability of the suction force of the suction cup 3, ensuring a stable damping force between the speaker and the table, and improving the placement stability of the Bluetooth speaker on its placement surface.

[0048] Correspondingly, the support spring 32 of the control device keeps the support plate 31 pressed against the table, so the height of the top of the support rod 25 relative to the table can be considered constant. When the suction cup 3 is pressed to give it sufficient suction force, the volume inside the suction cup 3 decreases, and correspondingly, the height of the internal space of the suction cup 3 decreases. At this time, the support rod 25 just abuts against the trigger switch 211, so the drive motor 12 remains in the off state, and correspondingly, the airbag 22 remains in the deflated contracted state.

[0049] When the suction cup 3 leaks air during prolonged suction, causing a decrease in suction force, the amount of air between the suction cup 3 and the table, i.e., inside the suction cup 3, will increase. This increases the volume of space between the suction cup 3 and the table, thus increasing the height of the internal space of the suction cup 3. Consequently, the support rod 25 can no longer maintain a sufficient counterforce against the trigger switch 211. The trigger switch 211 is then activated, and the drive motor 12 starts, causing the support plate 24 to pull the airbag 22 downward, creating negative pressure. As a result, the air inside the suction cup 3 is extracted, and the suction force of the suction cup 3 is restored. This ensures a stable damping force between the speaker and the table, improving the placement stability of the Bluetooth speaker on its surface.

[0050] It is worth noting that when the airbag 22 is pushed downwards by the support plate 24, creating a negative pressure inside, the first baffle plate 223, installed on the outside of the airbag 22, will be tightly pressed against the first vent 222 under the negative pressure, preventing air from the external environment from entering the airbag 22 through the first vent 222. Therefore, air can only attempt to enter the airbag 22 through the second vent 231. Since the second baffle plate 233 is installed on the inside of the airbag 22, when air enters the airbag 22 through the second vent 231, the second baffle plate 233 will be pushed open by the pressure difference, rather than being tightly pressed against the second vent 231, thus allowing the air to pass through.

[0051] Due to the relative positions of the two ends of the pull rope 23, as the support plate 24 expands the airbag 22, the pull rope 23 will pull the shielding plate 223 towards the vent 222 and tightly cover it. This allows the shielding plate 223 to receive additional stable external mechanical force while blocking the vent 222, ensuring its sealing effect. This helps ensure that the airbag 22 draws air from the suction cup 3 when using negative pressure, improving the suction efficiency. Therefore, it facilitates the rapid recovery of the suction force of the suction cup 3, shortens the duration of suction force fluctuations, helps maintain stable damping force between the speaker and the tabletop, and improves the stability of the Bluetooth speaker on its placement surface.

[0052] Furthermore, this arrangement allows the connecting and limiting function of the pull rope 23 to allow the shielding plate 223 to be completely detached from the outer surface of the airbag 22, eliminating the need for direct fixation to the airbag 22. Thus, when the airbag 22 attempts to expel excess gas, the shielding plate 223 can completely detach from its outer surface, fully exposing the ventilation seam 222. This allows the gas inside the airbag 22 to be expelled quickly with minimal obstruction. This helps shorten the time it takes for the airbag 22 to expel gas, enabling it to quickly return from a fully inflated state to a deflated state where it can again draw gas from the suction cup 3, thereby improving the efficiency of the invention.

[0053] It should be emphasized that, based on the content described above, although the beneficial effects of the present invention have been explained in detail and corresponding specific embodiments have been provided, those skilled in the art can still achieve the same technical effects by making conventional substitutions, modifications, or other alterations to the given technical solutions without creative effort, provided they fully understand the working principle of the present invention. However, such modifications should not be considered as exceeding the scope of the present invention. Specifically, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A Bluetooth speaker with NFC quick pairing function, characterized in that, The speaker includes a speaker body (1), a suction cup (3) is provided at the bottom of the speaker body (1), a compensation device is provided on the speaker body (1), the compensation device is connected to the inside of the suction cup (3), and the compensation device is used to extract air from the suction cup (3); a control device is provided on the speaker body (1), and the control device controls the start and stop of the compensation device according to the amount of air in the suction cup (3).

2. A Bluetooth speaker with NFC quick pairing function according to claim 1, characterized in that, The compensation device includes a mounting base (2) fixedly installed at the bottom of the speaker body (1), and a suction cup (3) fixedly installed at the bottom end of the mounting base (2); a mounting cavity (21) is provided inside the mounting base (2), and a connecting hole (4) is provided on the outer wall of the mounting base (2), the connecting hole (4) communicating with the mounting cavity (21); a support plate (24) is movably installed inside the mounting cavity (21), an airbag (22) is fixedly installed at the top of the support plate (24), and the top of the airbag (22) is fixedly connected to the mounting cavity (21); a connecting tube (221) is fixedly installed on the airbag (22). The connecting pipe (221) passes through the support plate (24) and the side wall of the mounting cavity (21) and communicates with the inside of the suction cup (3); the airbag (22) is provided with a one-way exhaust assembly; the bottom end of the speaker body (1) is provided with a mounting chamber (11), a drive motor (12) is fixedly installed in the mounting chamber (11), the drive motor (12) is connected to the power supply inside the speaker body (1), the output end of the drive motor (12) is fixedly installed with a drive wheel (13), a top rod (14) is rotatably installed on the drive wheel (13), and the other end of the top rod (14) is rotatably connected to the support plate (24).

3. A Bluetooth speaker with NFC quick pairing function according to claim 2, characterized in that, The control device includes a mounting hole (212) at the bottom of the mounting cavity (21), a mating hole (26) on the support plate (24), and an annular connecting membrane (213) fixedly installed on the inner wall of the mounting hole (212). A support rod (25) is movably installed in both the mounting hole (212) and the mating hole (26). The connecting membrane (213) surrounds the support rod (25) and is fixedly connected to the support rod (25). A support plate (31) is fixedly installed at the bottom of the support rod (25). A support spring (32) is fixedly installed on the support plate (31). The other end of the support spring (32) is fixedly installed at the bottom of the mounting base (2). A trigger switch (211) is fixedly installed in the mounting cavity (21). The trigger switch (211) is electrically connected to the drive motor (12). The support rod (25) is used to abut against the trigger switch (211).

4. A Bluetooth speaker with NFC quick pairing function according to claim 3, characterized in that, The one-way exhaust assembly includes a first ventilation slit (222) and a second ventilation slit (231) on the airbag (22). The airbag (22) is provided with a first shield (223) and a second shield (233). The first shield (223) is located on the outside of the airbag (22) and cooperates with the first ventilation slit (222). The second shield (233) is fixedly installed on the inside of the airbag (22) and cooperates with the second ventilation slit (231). The connecting pipe (221) is connected to the airbag (22) at the position of the second ventilation slit (231).

5. A Bluetooth speaker with NFC quick pairing function according to claim 4, characterized in that, Two pull ropes (23) are fixedly installed on the shielding plate (223). The other ends of the two pull ropes (23) are fixedly connected to the support plate (24) and the inner wall of the mounting cavity (21), respectively. The ends of the two pull ropes (23) that are not connected to the shielding plate (223) are always closer to the center of the mounting base (2) than the ends that are connected to the shielding plate (223).

6. A Bluetooth speaker with NFC quick pairing function according to claim 5, characterized in that, Reinforcing blocks 1 (224) and 2 (232) are fixedly installed on the first ventilation seam (222) and the second ventilation seam (231), respectively. Both reinforcing blocks 1 (224) and 2 (232) are provided with ventilation holes (225). The first shielding plate (223) abuts against the first reinforcing block (224), and the second shielding plate (233) abuts against the second reinforcing block (232). A silicone sealing nail (226) is fixedly installed on the side wall of the first shielding plate (223) near the first reinforcing block (224). The sealing nail (226) is used to abut against the ventilation holes (225) on the first reinforcing block (224).

7. A Bluetooth speaker with NFC quick pairing function according to claim 6, characterized in that, A rigid guide strip (227) is fixedly installed at the tip of the sealing nail (226), and the guide strip (227) always extends into the vent hole (225) on the reinforcing block (224).

8. A Bluetooth speaker with NFC quick pairing function according to claim 6, characterized in that, The connecting pipe (221) is a silicone hose, the mating hole (26) is a square hole, and the cross-section of the support rod (25) is rectangular.

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