High-protection outdoor intelligent sound box

Abstract

The application discloses a kind of high protective outdoor intelligent sound, belong to sound technical field, including sound body, sound body includes control cabin and play cabin;It further includes protective sleeve;Protective sleeve inside has accommodating space, first opening and second opening are respectively arranged at the both ends of accommodating space, for inserting control cabin or play cabin;Limiting unit is arranged on the inner wall of protective sleeve between first opening and second opening, for limiting the movement of control cabin in length direction, so that all or part of play cabin is located inside or outside protective sleeve.The high protective outdoor intelligent sound can flexibly adjust the relative position of protective sleeve and sound body according to different use environments, while ensuring the protective performance, taking into account the heat dissipation demand, improving the environmental adaptability and service life of sound.

Description

Technical Field

[0001] This invention belongs to the field of audio technology, and in particular relates to a highly protective outdoor smart speaker. Background Technology

[0002] Outdoor speakers, as devices that provide audio playback in outdoor environments, are widely popular and used in outdoor activities such as picnics, camping, and hiking. However, the outdoor environment is more complex and harsher than the indoor environment, and speakers may face many problems when used outdoors. For example, in high-temperature environments, the internal batteries and electronic components of the speaker are prone to performance degradation or even damage due to overheating; in low-temperature environments, battery life will be significantly reduced. In addition, outdoor rain, dust, and sandstorms can easily corrode the speaker, leading to short circuits in its internal circuits and wear and tear on mechanical parts. For intelligent speakers, due to their more complex and precise integrated circuits and intelligent control modules, the requirements for environmental conditions are even more stringent. The above problems may seriously affect the normal operation of their intelligent functions, such as unstable signal reception and errors in intelligent voice interaction. Therefore, high protection is extremely necessary for outdoor intelligent speakers. Currently, audio equipment on the market typically employs waterproof casings, waterproof coatings, and sealing strips for protection. Some audio systems use waterproof plastics or metals for their casings and install sealing strips at the seams to prevent rainwater and dust from entering. Others apply a waterproof coating to the casing surface to enhance waterproofing. However, these protective methods have certain limitations. On the one hand, most existing protective measures are fixed structures and cannot be flexibly adjusted according to different environmental conditions. For example, in high-temperature environments, while the overall protective structure can prevent the intrusion of foreign objects, it hinders heat dissipation inside the audio system, exacerbating overheating problems for batteries and electronic components; in low-temperature environments, it cannot provide effective insulation for critical components such as batteries. On the other hand, some protective structures may hinder sound propagation and playback effects; for example, overly tight sealing may affect the sound diffusion range and sound quality. Furthermore, long-term exposure to outdoor environments can cause the waterproof coating to wear off and the sealing strips to age and lose elasticity, leading to a decline in protective performance.

[0003] Therefore, we propose a highly protective outdoor smart speaker. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of difficulty in balancing protection and performance in existing audio technology. The invention proposes a highly protective outdoor smart speaker that can flexibly adjust the relative position of the protective cover and the speaker body according to different usage environments. While ensuring protection, it also takes into account heat dissipation requirements, thereby improving the speaker's environmental adaptability and service life.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A highly protective outdoor smart speaker, including the speaker body and a protective cover; The audio system includes a control compartment and a playback compartment; The protective sleeve has an internal accommodating space, with a first opening and a second opening at each end of the accommodating space for inserting the control compartment or playback compartment. A limiting unit is provided on the inner wall of the protective sleeve between the first opening and the second opening to restrict the movement of the control cabin in the length direction, so that all or part of the playback cabin is located inside or outside the protective sleeve.

[0006] Preferably, both the control cabin and the playback cabin are cylindrical structures, and the two cylindrical structures are coaxial and fixedly connected.

[0007] Preferably, the limiting unit has a sliding groove, a buffer column is slidably disposed in the sliding groove, a buffer spring is installed between the buffer column and the bottom of the sliding groove, and the end face of the buffer column away from the buffer spring can act on the end face of the control cabin.

[0008] Preferably, the control cabin has a clearance groove on its peripheral sidewall, and the clearance groove matches the buffer column.

[0009] Preferably, the limiting unit includes a convex ring, which is fixedly connected to the inner wall of the accommodating space; The diameter of the playback compartment is smaller than the diameter of the control compartment; the inner diameter of the convex ring is smaller than the diameter of the control compartment, which is used to limit the control compartment; the inner diameter of the convex ring is larger than the diameter of the playback compartment, so that the playback compartment can pass through the inside of the convex ring.

[0010] Preferably, the convex ring has a third end face and a fourth end face, the third end face being disposed near the first opening and the fourth end face being disposed near the second opening; The distance from the third end face to the second opening is less than the length of the playback cabin; the distance from the fourth end face to the first opening is greater than the length of the playback cabin.

[0011] Preferably, the buffer post has a cylindrical structure, the sliding groove is formed on the third end face of the convex ring, the sliding groove is a cylindrical groove, the side wall of the protective sleeve is provided with a support groove communicating with the sliding groove, the support groove is a semi-cylindrical groove, and the side wall of the buffer post is attached to the side wall of the sliding groove and the support groove.

[0012] Preferably, the limiting unit is provided with an elastic airbag for limiting the playback compartment.

[0013] Preferably, the buffer column and the sliding groove are connected in a sealed sliding connection, so that a closed space is formed between the buffer column and the sliding groove; The sealed space is connected to the elastic airbag through a passage. When the buffer column slides toward the bottom of the sliding groove, the air pressure inside the elastic airbag increases, fixing the playback cabin in the limiting unit.

[0014] Preferably, the elastic airbag is provided in multiple groups, and the multiple groups of elastic airbags are distributed in a circular array around the center of the limiting unit.

[0015] In summary, the technical effects and advantages of this invention are as follows: This highly protective outdoor smart speaker, by setting a protective sleeve around the speaker body and adjusting the relative position of the control compartment and the protective sleeve through a limiting unit, allows the playback compartment to be partially or completely exposed outside the protective sleeve, thereby achieving a dynamic balance between protection and heat dissipation. It has the ability to flexibly adjust the relative position of the protective sleeve and the speaker body according to different usage environments, ensuring protective performance while taking into account heat dissipation needs, thus improving the speaker's environmental adaptability and service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the speaker body in this invention; Figure 3 This is a schematic diagram of the structure of the protective sleeve in this invention. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the protective sleeve in this invention. Figure 2 ; Figure 5 This is a schematic diagram showing the positional relationship between the speaker body and the protective cover in this invention. Figure 1 ; Figure 6 This is a schematic diagram showing the positional relationship between the speaker body and the protective cover in this invention. Figure 2 ; Figure 7 This is a schematic diagram showing the positional relationship between the speaker body and the protective cover in this invention. Figure 3 ; Figure 8 This is a schematic diagram showing the positional relationship between the speaker body and the protective cover in this invention. Figure 4 ; Figure 9 This is a schematic diagram showing the positional relationship between the buffer column and the relief groove in this invention. Figure 1 ; Figure 10 This is a schematic diagram showing the positional relationship between the buffer column and the relief groove in this invention. Figure 2 ; Figure 11 This is a schematic diagram of the internal structure of the protective sleeve in this invention.

[0017] In the picture: 1. Speaker unit; 2. Protective cover; 11. Control compartment; 12. Playback compartment; 111. Clearance slot; 21. First opening; 22. Protruding ring; 23. Second opening; 24. Buffer post; 25. Elastic airbag; 211. Support groove; 221. Third end face; 222. Fourth end face; 223. Sliding groove; 241. Buffer spring; 251. Passage. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] In existing technologies, outdoor smart speakers generally employ a fixed protective structure, achieving basic protection through a waterproof shell and sealing strips. While this structure can prevent rain and dust intrusion, it has significant limitations. The fixed, sealed design leads to heat buildup that is difficult to dissipate, making electronic components prone to overheating and damage in high-temperature environments; in low-temperature environments, it cannot form an effective insulation layer, resulting in a sharp decrease in battery life. Simultaneously, the sealed structure hinders sound wave conduction, causing sound quality distortion and a shortened propagation distance. Wear and tear on the waterproof coating and aging of the sealing strips further reduce long-term protective performance, forcing users to make trade-offs between protective effectiveness and usability.

[0020] To address these issues, researchers discovered the core problem lay in the mismatch between the static protective structure and the demands of dynamic environments. Analysis of outdoor usage scenarios revealed that high temperatures necessitated enhanced heat dissipation at the expense of reduced protection levels, while low temperatures required improved insulation to maintain sound output. Based on this, a design concept for an adjustable protective system was proposed: the speaker unit is decomposed into control and playback modules, with a sliding protective cover enabling positional adjustment. The key breakthrough lies in designing a limiting mechanism that allows for relative displacement of components, enabling the playback chamber to be fully protected, partially exposed, or completely externalized depending on environmental conditions.

[0021] like Figures 1-11As shown, a highly protective outdoor smart speaker includes a speaker body 1 and a protective sleeve 2. The speaker body 1 includes a control compartment 11 and a playback compartment 12. The control compartment 11 has a first end face and a second end face, and the playback compartment 12 is mounted on one of the end faces of the control compartment 11. The protective sleeve 2 has an internal accommodating space with a first opening 21 and a second opening 23 at its two ends for inserting either the control compartment 11 or the playback compartment 12. A limiting unit is provided on the inner wall of the protective sleeve 2 between the first opening 21 and the second opening 23 to restrict the movement of the control compartment 11 in the longitudinal direction, ensuring that all or part of the playback compartment 12 is located inside or outside the protective sleeve 2.

[0022] The protective sleeve 2 is a cylindrical structure with elastic deformation capability, which can be made of silicone or rubber. Its inner diameter is slightly smaller than the diameter of the speaker body 1 to form an interference fit. The control compartment 11 is the core module that houses the circuit board and battery, which can be made of aluminum alloy housing with a threaded connection structure on the end face. The playback compartment 12 is the sound-generating component that integrates the speaker unit, which can be a combination of a waterproof and sound-permeable membrane and a plastic housing. The limiting unit is an annular protrusion structure set on the inner wall of the protective sleeve 2, which can be an injection-molded reinforcing rib structure, with a protrusion height of 1.2-1.5 times the thickness of the control compartment wall.

[0023] Specifically, when enhanced protection is required, the control chamber 11 is fully pushed into the protective sleeve 2, and the limiting unit is snapped onto the edge of the end face of the control chamber 11, so that the peripheral walls of the playback chamber 12 are completely enclosed inside the protective sleeve 2, causing the sound from the playback chamber 12 to be emitted from the opening of the protective sleeve 2 on the side away from the control chamber 11. Figure 7 As shown. When improved heat dissipation is needed, the speaker body 1 is pulled out of the protective sleeve 2, allowing the control compartment 11 to directly contact the outside. In this case, the protective sleeve 2 can be used as a base to hold the speaker body 1, as shown. Figure 5 As shown. In low-temperature environments, the control cabin 11 can be completely placed inside the protective sleeve 2, utilizing the cavity formed by the control cabin 11 and the protective sleeve 2 to store heat, such as... Figure 6 , Figure 8 As shown.

[0024] Compared to existing technologies, traditional audio equipment's protective structure cannot change the relative positions of components and the outer casing, leading to a trade-off between protection and heat dissipation functions. This solution, through a sliding, split design, allows the playback chamber 12 and control chamber 11 to adjust their exposure levels according to environmental parameters such as temperature and humidity. This resolves the conflict between high-temperature heat dissipation and low-temperature insulation, while also avoiding the negative impact of a completely sealed structure on sound propagation.

[0025] Through the above technical solutions, this application achieves a dynamic balance between protection level and performance. In rainstorm or dusty environments, the playback compartment 12, when fully integrated into the protective sleeve 2, achieves an IP67 protection rating; in sunny weather, partial exposure of the playback compartment 12 improves heat dissipation efficiency by more than 30%; in low-temperature environments, external placement of the playback compartment 12 increases the battery operating temperature by 5-8°C. The elastic protective sleeve 2 automatically compensates for deformation during component movement, maintaining the sealing performance of the contact surfaces and solving the problem of easy water leakage in traditional sliding structures. The protruding design of the limiting unit ensures the positioning accuracy of the component and prevents accidental displacement during use.

[0026] Furthermore, both the control cabin 11 and the playback cabin 12 are cylindrical structures, and the two cylindrical structures are coaxial and fixedly connected.

[0027] The control cabin 11 and the playback cabin 12 form an integrated body through a coaxial column structure. When inserted into the protective sleeve 2, the outer wall of the column and the inner wall of the protective sleeve 2 form a continuous contact surface, reducing gaps for rainwater or dust to enter. The coaxial arrangement ensures that the displacement direction of the two cabins within the protective sleeve 2 is consistent, preventing the limiting unit from failing due to excessive force on one side caused by axial misalignment. The fixed connection ensures that the two cabins maintain overall rigidity during outdoor vibration or collision, preventing damage to the internal circuitry caused by breakage at the connection point.

[0028] This application further proposes that the limiting unit is provided with a sliding groove 223, a buffer column 24 is slidably arranged in the sliding groove 223, a buffer spring 241 is installed between the buffer column 24 and the bottom of the sliding groove 223, and the end face of the buffer column 24 away from the buffer spring 241 can act on the end face of the control cabin 11.

[0029] The sliding groove 223 refers to a linear guide structure extending axially along the limiting unit, which can be implemented as a cylindrical groove, used to constrain the movement trajectory of the buffer column 24. The buffer column 24 refers to a columnar component that fits with the sliding groove 223 with a clearance, which can be made of metal or polymer material, and its end face contacts the end face of the control chamber 11 to form a pressure transmission interface. The buffer spring 241 refers to an elastic element installed between the bottom of the sliding groove 223 and the buffer column 24, which can be a helical spring or a disc spring, used to convert impact energy into elastic potential energy.

[0030] Specifically, when the control compartment 11 is subjected to an external impact, the buffer column 24 slides axially along the sliding groove 223 and compresses the buffer spring 241. The elastic deformation of the spring absorbs the impact energy, reducing the instantaneous force transmitted to the control compartment 11. The end face of the buffer column 24 remains in contact with the end face of the control compartment 11, forming a flexible limiting constraint to prevent damage to internal components caused by rigid collisions. The linear guiding effect of the sliding groove 223 ensures that the buffer column 24 always moves in a predetermined direction, maintaining the fixing function of the limiting unit for the audio system.

[0031] This application further proposes that a clearance groove 111 is provided on the peripheral side wall of the control cabin 11, and the clearance groove 111 matches the buffer column 24.

[0032] The clearance groove 111 refers to a groove structure extending axially along the outer wall of the control cabin 11. It can be implemented using a rectangular or arc-shaped cross-section groove, with its depth and width forming a clearance fit with the radial dimension of the buffer column 24. The axial length of this groove covers the range of motion of the buffer column 24 within the sliding groove 223, providing clearance space for the extension and retraction of the buffer column 24. The matching of the buffer column 24 means that the contour of the clearance groove 111 and the shape of the end of the buffer column 24 form a complementary relationship. Specifically, this can be achieved by a cylindrical buffer column fitting with an arc-shaped groove wall, ensuring that the buffer column 24 remains in a non-contact state with the side wall of the clearance groove 111 during sliding.

[0033] Specifically, when the control cabin 11 is inserted into the protective sleeve 2, the buffer column 24 extends outward under the action of a spring. At this time, the control cabin 11 can be rotated to adjust the angle so that the end of the buffer column 24 is aligned with the entrance of the clearance groove 111. During the continued insertion of the control cabin 11, the buffer column 24 slides axially along the clearance groove 111, and its extension and retraction trajectory is restricted within the space of the clearance groove 111, avoiding rigid contact with the outer wall of the control cabin 11. When the control cabin 11 is fully inserted to the bottom of the protective sleeve 2, the buffer column 24 is at the end of the clearance groove 111. At this time, the playback cabin 12 is completely exposed at the other end of the protective sleeve 2, while the control cabin 11 is completely enclosed inside the protective sleeve 2, such as... Figure 8 As shown.

[0034] Furthermore, the limiting unit includes a convex ring 22, which is fixedly connected to the inner wall of the accommodating space. The diameter of the playback compartment 12 is smaller than the diameter of the control compartment 11. The inner diameter of the convex ring 22 is smaller than the diameter of the control compartment 11, serving to limit the control compartment 11. The inner diameter of the convex ring 22 is larger than the diameter of the playback compartment 12, allowing the playback compartment 12 to pass through the interior of the convex ring 22.

[0035] The convex ring 22 forms a rigid support structure with the inner wall of the protective sleeve 2 through a fixed connection. When the speaker body 1 is inserted into the protective sleeve 2, the control chamber 11, because its diameter is larger than the inner diameter of the convex ring 22, is blocked on one side of the convex ring 22 and cannot continue to move along the length of the protective sleeve 2, thus achieving axial limitation. The playback chamber 12, because its diameter is smaller than the inner diameter of the convex ring 22, can extend through the convex ring 22 to the outside of the protective sleeve 2. By adjusting the insertion depth of the playback chamber 12, it can be partially or completely exposed outside the protective sleeve, thereby flexibly adjusting the coverage area of ​​the playback chamber 12 while ensuring the stable fixation of the control chamber 11.

[0036] Compared to existing technologies, current protective structures typically use overall sealing or fixed clips to completely enclose the speaker body 1, making it impossible to adjust the coverage area according to the usage scenario. This solution, through the design of the convex ring 22 and the difference in diameter, allows the playback chamber 12 to freely pass through the limiting structure while restricting the movement of the control chamber 11. This not only prevents the speaker body 1 from shaking inside the protective sleeve, but also allows for flexible selection of the protective state of the playback chamber 12 according to environmental requirements.

[0037] This application further proposes that the convex ring 22 has a third end face 221 and a fourth end face 222. The third end face 221 is disposed near the first opening 21, and the fourth end face 222 is disposed near the second opening 23. The distance from the third end face 221 to the second opening 23 is less than the length of the playback chamber 12. The distance from the fourth end face 222 to the first opening 21 is greater than the length of the playback chamber 12, such as... Figure 3 , Figure 4 As shown.

[0038] The third end face 221 refers to the annular end face of the protruding ring 22 near the first opening 21. Specifically, it can be integrally formed with the inner wall of the protective sleeve 2 using injection molding, and is used to form a limiting reference surface facing the second opening 23. The fourth end face 222 refers to the annular end face of the protruding ring 22 near the second opening 23. It can be machined to form a flat contact surface, and is used to establish a limiting reference facing the first opening 21. The distance from the third end face 221 to the second opening 23 is set to be less than the length of the playback compartment 12. For example, this distance can be controlled within 0.8 times the length of the playback compartment 12, so that the playback compartment 12 cannot completely pass through the second opening 23. The depth from the fourth end face 222 to the first opening 21 is set to be greater than the length of the playback compartment 12. For example, this depth can reach 1.2 times the length of the playback compartment 12, ensuring that the playback compartment 12 can be completely housed inside the protective sleeve 2.

[0039] Specifically, when the playback chamber 12 is inserted towards the second opening 23, due to the distance limitation between the third end face 221 and the second opening 23, the end of the playback chamber 12 will inevitably extend beyond the second opening 23 to form an external sound-emitting structure. At this time, the protective sleeve 2 only covers the control chamber 11 part, such as... Figure 8 As shown.

[0040] When the playback chamber 12 is inserted in the reverse direction toward the first opening 21, the depth from the fourth end face 222 to the first opening 21 allows the playback chamber 12 to completely enter the protective sleeve 2, achieving full-closure protection. Figure 7 As shown.

[0041] The asymmetrical distance parameters between the third end face 221 and the fourth end face 222 form a physical limiting mechanism for bidirectional insertion. The protection mode and the amplification mode can be switched by changing the insertion direction without the need for additional adjustment components.

[0042] In addition, the sound-emitting parts of the playback chamber 12 include the front end and the circumferential part. When the playback chamber 12 is outside the protective sleeve 2, the front end and the circumferential part can emit sound, forming a full range of sound coverage. When the playback chamber 12 is inside the protective sleeve 2, the front end still emits sound normally, while the circumferential sound is blocked by the inner wall of the protective sleeve 2, so that the sound can be emitted forward along the first opening 21.

[0043] Through the above technical solution, this application achieves multi-position positioning capability of the playback chamber 12 within the protective sleeve 2. When encountering severe weather outdoors, the playback chamber 12 can be completely retracted for full-enclosure protection. When high-quality sound effects are required, a portion of the playback chamber 12 can be externally positioned to expand the sound field distribution range. This structure ensures positioning stability under different usage modes through physical limiting, avoiding the loosening defects of traditional adjustable structures.

[0044] This application further proposes that the buffer post 24 has a cylindrical structure, and the sliding groove 223 is opened on the third end face 221 of the convex ring 22. The sliding groove 223 is a cylindrical groove, and the side wall of the protective sleeve 2 is provided with a support groove 211 that communicates with the sliding groove 223. The support groove 211 is a semi-cylindrical groove, and the side wall of the buffer post 24 is attached to the side wall of the sliding groove 223 and the support groove 211.

[0045] The cylindrical structure refers to the circular cross-section of the buffer post 24, which can be formed from metal or engineering plastic. The cylindrical geometry reduces frictional resistance during sliding. The cylindrical groove 223, with its cylindrical opening matching the outer contour of the buffer post 24, can be formed by CNC machining on the end face of the convex ring, thus constraining the radial displacement of the buffer post 24. The semi-cylindrical groove 211, with its semi-cylindrical opening on the side wall of the protective sleeve 2, retains only half of its cylindrical outline. This can be achieved through injection molding or milling, providing sliding space for the buffer post 24 while maintaining the continuous structure of the protective sleeve 2's side wall. The side wall of the buffer post 24 fitting the sliding groove 223 and the support groove 211 means that a clearance fit or transition fit is used between the buffer post 24 and the groove, which can be achieved through dimensional tolerance control, limiting the deflection angle of the buffer post 24 during sliding.

[0046] In addition, this application includes an elastic airbag 25 on the limiting unit for limiting the playback chamber 12. Multiple sets of elastic airbags 25 are arranged in a circular array around the center of the limiting unit.

[0047] The elastic airbag 25 refers to a sealed inflatable structure made of flexible material, specifically rubber or silicone, filled with gas or an elastic medium, which absorbs external pressure changes through deformation. The circumferential array distribution refers to multiple sets of elastic airbags 25 arranged evenly along a circular trajectory, specifically by arranging them at equal angular intervals around the central axis of the limiting unit. This layout makes the force directions of each airbag radially symmetrical, forming a ring-shaped pressure band.

[0048] The buffer column 24 and the sliding groove 223 are connected by a sealed sliding connection, forming a sealed space between the buffer column 24 and the sliding groove 223. The sealed space is connected to the elastic airbag 25 through the passage 251. When the buffer column 24 slides toward the bottom of the sliding groove 223, the air pressure inside the elastic airbag 25 increases, fixing the playback chamber 12 in the limiting unit.

[0049] The sealed sliding connection refers to the airtight fit between the buffer column 24 and the sliding groove 223 achieved through matching contact surface shapes and sealing materials. Specifically, this can be achieved by using a rubber sealing ring and a precision cylindrical surface to prevent gas leakage during relative movement. The sealed space refers to the gas cavity enclosed by the end face of the buffer column 24, the inner wall of the sliding groove 223, and the sealing structure. This can be achieved by adjusting the depth of the sliding groove 223 to match the stroke of the buffer column 24, and is used to store compressible gas and create pressure changes. The passage refers to the gas transmission channel connecting the sealed space and the elastic airbag 25. This can be achieved by using a flexible air tube or a rigid pipe embedded within the wall of the protective sleeve 2, establishing a gas pressure conduction path.

[0050] Specifically, when the speaker body 1 is subjected to an axial impact force, the control chamber 11 pushes the buffer column 24 to move towards the bottom along the sliding groove 223, and the sealed sliding connection structure reduces the volume of the enclosed space. The compressed gas enters the elastic airbag 25 through the passage, causing the internal pressure of the airbag to rise and expand outward. The expanded airbag forms a contact pressure with the surface of the playback chamber 12, and this pressure dynamically changes with the impact force: the greater the impact force, the greater the displacement of the buffer column 24, and the more significant the increase in airbag pressure, thus forming an adaptive clamping force enhancement mechanism. When the impact force disappears, the buffer spring 241 pushes the buffer column 24 to reset, the volume of the enclosed space is restored, allowing the gas to flow back, the airbag pressure decreases, and the clamping state is released.

[0051] Through the above technical solution, this application solves the problems of the inability to adaptively adjust the fixing force of the elastic airbag 25 and the performance degradation caused by material aging. When the speaker is subjected to external force of different intensities, the airbag pressure is automatically adjusted according to the impact intensity to ensure the stable fixation of the playback chamber 12; the sealing structure isolates the external environment from the direct corrosion of the elastic element, extending the service life of the airbag; the air pressure conduction mechanism replaces the traditional mechanical contact fixation, reducing the risk of component wear.

[0052] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A highly protective outdoor smart speaker, comprising a speaker body, the speaker body including a control compartment and a playback compartment; characterized in that, It also includes protective covers; The protective sleeve has an internal accommodating space, with a first opening and a second opening at each end of the accommodating space for inserting the control compartment or playback compartment. A limiting unit is provided on the inner wall of the protective sleeve between the first opening and the second opening; The limiting unit includes a convex ring, which is fixedly connected to the inner wall of the accommodating space; the diameter of the playback compartment is smaller than the diameter of the control compartment; the inner diameter of the convex ring is smaller than the diameter of the control compartment, used to limit the control compartment; the inner diameter of the convex ring is larger than the diameter of the playback compartment, allowing the playback compartment to pass through the inside of the convex ring; the convex ring has a third end face and a fourth end face, the third end face being disposed near the first opening and the fourth end face being disposed near the second opening; the distance from the third end face to the second opening is smaller than the length of the playback compartment; the distance from the fourth end face to the first opening is greater than the length of the playback compartment; used to restrict the movement of the control compartment in the length direction, so that all or part of the playback compartment is located inside or outside the protective sleeve.

2. The highly protective outdoor smart speaker according to claim 1, characterized in that, Both the control cabin and the playback cabin are cylindrical structures, and the two cylindrical structures are coaxial and fixedly connected.

3. The highly protective outdoor smart speaker according to claim 1, characterized in that, The limiting unit is provided with a sliding groove, and a buffer column is slidably arranged in the sliding groove. A buffer spring is installed between the buffer column and the bottom of the sliding groove, and the end face of the buffer column away from the buffer spring can act on the end face of the control cabin.

4. The highly protective outdoor smart speaker according to claim 3, characterized in that, The control cabin has clearance grooves on its peripheral walls, which are matched with the buffer columns.

5. A highly protective outdoor smart speaker according to claim 3, characterized in that, The buffer post has a cylindrical structure. The sliding groove is opened on the third end face of the convex ring. The sliding groove is a cylindrical groove. The side wall of the protective sleeve is provided with a support groove that communicates with the sliding groove. The support groove is a semi-cylindrical groove. The side wall of the buffer post is attached to the side wall of the sliding groove and the support groove.

6. A highly protective outdoor smart speaker according to claim 3, characterized in that, The limiting unit is equipped with an elastic airbag for limiting the playback chamber.

7. A highly protective outdoor smart speaker according to claim 6, characterized in that, The buffer column and the sliding groove are connected by a sealed sliding connection, forming a closed space between the buffer column and the sliding groove; The sealed space is connected to the elastic airbag through a passage. When the buffer column slides toward the bottom of the sliding groove, the air pressure inside the elastic airbag increases, fixing the playback cabin in the limiting unit.

8. A highly protective outdoor smart speaker according to claim 6, characterized in that, The elastic airbag is provided in multiple sets, and the multiple sets of elastic airbags are distributed in a circular array around the center of the limiting unit.

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