Sound production device and baby walker
By designing sound-generating devices on children's products, using the sliding contact of toothed protrusions and moving components to produce sound, the problem of low fun in children's products is solved, increasing children's interest in using them and the time they spend using them is increased.
Patent Information
- Application Number
- CN202423001015.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Children's products are not very fun, which makes children unwilling to use them for extended periods of time.
Design a sound-generating device comprising a housing, a fixed component, and a movable component, which generates sound through sliding contact between toothed protrusions and the movable component, and adds interest by incorporating a detachable housing structure and a guide limiting mechanism.
The design of the sound-generating device increases the fun of children's products and extends their usage time.
Smart Images
Figure CN223654410U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a toy technical field, concretely relates to a sound production device and a walker. BACKGROUND
[0002] Children's products such as children's electric vehicles, children's strollers, children's rocking chairs, children's walkers, children's seats and children's cradles usually have a containing space for children to ride. However, the functions of children's products are relatively single, and usually only toys for children to play are provided, and toys capable of producing sound are not provided, which lack interestingness. After a long time, children often feel monotonous when using, and are prone to crying and unwilling to ride for a long time. SUMMARY
[0003] Therefore, the utility model solves the technical problems of low interestingness of children's products and children's unwillingness to use for a long time, and provides a sound production device and a walker.
[0004] In order to solve the above technical problems, the utility model provides a sound production device, which comprises a shell, a fixing part and a moving assembly. The fixing part is fixedly arranged on the shell, and the fixing part is provided with a tooth-shaped protrusion. The moving assembly is slidably arranged on the shell, one end of the moving assembly is in contact with the tooth-shaped protrusion, so that the moving assembly slides on the tooth-shaped protrusion to produce sound.
[0005] When in use, the child pushes the moving assembly to slide along the shell, so that the end of the moving assembly slides between the plurality of tooth-shaped protrusions of the fixing part, the end of the moving assembly is elastically deformed, passes through one of the tooth-shaped protrusions, and knocks the next tooth-shaped protrusion under the action of its own elastic force, producing a clicking sound. At the same time of exercising the hand action, the attention of the child can be attracted, so as to increase the interestingness of the children's product and prolong the use time of the children's product. The sound production device provided by the utility model solves the problems of low interestingness of children's products and children's unwillingness to use for a long time.
[0006] Optionally, the shell comprises a front shell and a rear shell, the front shell is detachably arranged on the rear shell, the fixing part is arranged on the inner side wall of the front shell, the front shell is provided with a sliding groove, the moving assembly is slidably arranged in the sliding groove, and the sliding groove is arranged in parallel with the fixing part. Through the detachable connection of the front shell and the rear shell, the fixing part can be arranged inside the shell, and the moving track of the moving assembly can be guided from the outside through the sliding groove on the front shell, so that the moving assembly slides between the plurality of tooth-shaped protrusions of the fixing part. The above arrangement can prevent the moving assembly from being damaged when exposed outside the shell, and prolong the service life.
[0007] Optionally, the moving component includes: a handle, a slider, and an abutment; the handle is slidably disposed on the outer side wall of the front housing, and a connecting rod is provided on the handle, the connecting rod being slidably disposed within the slide groove; the slider is slidably disposed on the inner side wall of the front housing, and the slider is connected to the connecting rod by a fastener; the abutment is disposed on the slider, and one end of the abutment away from the slider contacts the toothed protrusion. With the above configuration, when a child pushes the handle, as the connecting rod moves along the slide groove, it causes the slider to move along the inner side wall of the front housing, thereby causing the end of the abutment to slide on the toothed protrusion.
[0008] Optionally, a guide groove is provided on the inner sidewall of the front housing, and the sliding groove is located within the guide groove; a guide protrusion is provided on the side of the slider near the front housing, and the guide protrusion is embedded in the guide groove. Through the above arrangement, the cooperation of the guide groove and the guide protrusion further guides and limits the movement trajectory of the moving component, preventing the end of the abutment from failing to contact the toothed protrusion of the fixing component due to the slider rotating because of the handle twisting.
[0009] Optionally, the rear shell is provided with a positioning part, which slides in contact with the side of the abutment away from the slider. This configuration prevents the abutment from loosening or falling off the slider, ensuring the abutment remains in contact with the toothed protrusion.
[0010] Optionally, the abutment member is configured to gradually narrow along the direction close to the fixing member. This configuration allows for better elastic deformation at the end of the abutment member near the fixing member, preventing jamming due to excessive hardness at the end of the abutment member.
[0011] Optionally, a rotating component is rotatably mounted on the housing, and the rotating component is provided with multiple anti-disengagement fasteners. The front housing has a mounting groove for embedding the rotating component, and the anti-disengagement fasteners engage with the groove opening of the mounting groove. A positioning post extending towards the front housing is provided on the inner sidewall of the rear housing, and the positioning post abuts against the rotating component. Through the above arrangement, the anti-disengagement fasteners engage with the groove opening of the mounting groove to prevent the rotating component from sliding out of the housing from the mounting groove, and the positioning post on the rear housing prevents the rotating component from sliding inwards, ensuring stable rotation of the rotating component within the mounting groove.
[0012] Optionally, an elastic plate is provided on the side wall of the mounting groove, and a limiting protrusion protruding toward the center of the mounting groove is provided on the elastic plate. A limiting groove for embedding the limiting protrusion is provided on the side wall of the rotating component, and at least two limiting grooves are provided at intervals; and / or, a plurality of blocking portions extending toward the direction away from the rotating component are provided on the side wall of the mounting groove, and the blocking portions cooperate with the anti-disengagement fastener. With the above configuration, the limiting protrusion slides along the side wall of the rotating component, and the elastic plate is slightly deformed by the pressure. When the limiting protrusion aligns with one of the limiting grooves, the elastic plate returns to its original shape under the action of elastic force, and the limiting protrusion is embedded in the limiting groove. The rotating component rotates to the first position, and then the rotating component is rotated in the opposite direction. The elastic plate is slightly deformed by the pressure, causing the limiting protrusion to dislodge from the limiting groove and slide along the side wall of the rotating component until it aligns with the other limiting groove. The rotating component then rotates to the second position. When the rotating component rotates to the first and second positions, the blocking part blocks the anti-dislodgement protrusion, which can prompt the reverse rotation.
[0013] Optionally, a sphere is rotatably disposed on the housing, and the front shell and / or the rear shell has a notch for exposing the sphere. With the above arrangement, the notch on the front shell and / or the rear shell exposes at least part of the surface of the sphere, allowing the sphere to be rotated, thereby seeing the pattern changes on the surface of the sphere, which can further increase the fun of the sound-generating device.
[0014] This utility model provides a baby walker, including a chassis frame, an upper plate, a seat, and a sound-generating device as described in any of the above embodiments. The upper plate is disposed on the chassis frame, the seat is disposed on the upper plate, and a base is rotatably disposed on the housing of the sound-generating device, the base being detachably disposed on the upper plate. Due to the use of the aforementioned violin-like design, it possesses any of the advantages described above. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of one embodiment of the sound-generating device provided in this utility model.
[0017] Figure 2 for Figure 1 A schematic diagram showing the sound-emitting device hidden in the rear shell;
[0018] Figure 3 forFigure 1 First-person perspective cross-sectional diagram;
[0019] Figure 4 for Figure 1 A schematic diagram of China Mobile's components;
[0020] Figure 5 for Figure 4 A schematic diagram of the middle handle;
[0021] Figure 6 for Figure 4 A schematic diagram of the front of the sliding component;
[0022] Figure 7 for Figure 4 A schematic diagram of the reverse side of the middle sliding component;
[0023] Figure 8 for Figure 1 Schematic diagram of the inner side of the front shell;
[0024] Figure 9 for Figure 1 Schematic diagram of the inner side of the middle and rear shell;
[0025] Figure 10 for Figure 1 A cross-sectional diagram from a second perspective;
[0026] Figure 11 for Figure 1 A schematic diagram of the rotating component.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Housing; 11. Front housing; 111. Slide groove; 112. Guide groove; 113. Mounting groove; 1131. Limiting protrusion; 1132. Blocking part; 114. Notch; 12. Rear housing; 121. Positioning part; 122. Positioning post; 123. Clearance groove; 2. Fixing component; 21. Toothed protrusion; 3. Moving component; 31. Handle; 311. Connecting rod; 32. Sliding component; 321. Boss; 322. Guide protrusion; 33. Abutment component; 331. Slot; 4. Rotating component; 41. Anti-disengagement component; 42. Limiting groove; 43. Handle; 5. Ball; 6. Bracket; 7. Base. Detailed Implementation
[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0033] This embodiment provides a structure for a sound-generating device that can increase the fun of a baby walker, used to produce a clicking sound when slid.
[0034] like Figure 1 , Figure 2 The image shows a specific embodiment of a sound-generating device provided in this example, comprising: a housing 1, a fixing member 2, and a moving component 3; the housing 1 is used to be installed on a baby walker; the fixing member 2 is fixedly disposed on the housing 1, and the fixing member 2 is provided with toothed protrusions 21; the moving component 3 is slidably disposed on the housing 1, and one end of the moving component 3 contacts the toothed protrusions 21, so that the moving component 3 slides on the toothed protrusions 21 to generate sound.
[0035] In use, the housing 1 is installed on the walker. When the child uses the walker, they push the moving component 3 to slide back and forth along the housing 1, causing the end of the moving component 3 to slide between the multiple toothed protrusions 21 of the fixing member 2. The end of the moving component 3 undergoes elastic deformation, passing over one of the toothed protrusions 21, and striking the next toothed protrusion 21 under its own elastic force, producing a clicking sound. While exercising hand movements, it can attract the child's attention, thereby increasing the fun of the children's product and extending its usage time. The sound-generating device provided in this embodiment solves the problem of the low fun of walkers.
[0036] It should be noted that the sound-generating device provided in this embodiment can be installed on children's products through the housing 1, or it can be installed on children's products through hanging or other detachable fixing methods.
[0037] like Figure 1 As shown, in the sound-generating device provided in this embodiment, the housing 1 is set in the shape of a violin to increase aesthetics, and can also be set in other shapes according to design needs.
[0038] like Figure 1 , Figure 2 As shown, in the sound-generating device provided in this embodiment, the housing 1 includes a front housing 11 and a rear housing 12. The front housing 11 is detachably mounted on the rear housing 12. The fixing member 2 is mounted on the inner sidewall of the front housing 11. The front housing 11 is provided with a sliding groove 111, and the moving component 3 is slidably mounted in the sliding groove 111. The sliding groove 111 is parallel to the fixing member 2. Through the detachable connection between the front housing 11 and the rear housing 12, the fixing member 2 can be mounted inside the housing 1. The sliding groove 111 on the front housing 11 guides the movement trajectory of the moving component 3 from the outside, allowing the moving component 3 to slide between the multiple toothed protrusions 21 of the fixing member 2. This prevents damage from exposure outside the housing 1 and extends its service life. Alternatively, as an alternative embodiment, the housing 1 can also be integrally formed, with the fixing member 2 and the moving component 3 mounted on the outer surface of the housing 1.
[0039] like Figures 1-6As shown, in the sound-generating device provided in this embodiment, the moving component 3 includes: a handle 31, a slider 32, and an abutment 33; the handle 31 is slidably disposed on the outer side wall of the front shell 11, and a connecting rod 311 is disposed on the handle 31, the connecting rod 311 being slidably disposed within the slide groove 111; the slider 32 is slidably disposed on the inner side wall of the front shell 11, and the slider 32 is connected to the connecting rod 311 by a fastener; the abutment 33 is disposed on the slider 32, and one end of the abutment 33 away from the slider 32 contacts the toothed protrusion 21. When a child pushes the handle 31, as the connecting rod 311 moves along the slide groove 111, it causes the slider 32 to move along the inner side wall of the front shell 11, thereby causing the end of the abutment 33 to slide between the toothed protrusions 21. Specifically, the connecting rod 311 and the sliding member 32 are fixed together by fasteners; the sliding member 32 has a boss 321 on the side away from the front shell 11, and the abutment member 33 has a slot 331, which is fitted onto the boss 321 so that the abutment member 33 and the sliding member 32 are engaged. Alternatively, as an alternative embodiment, the sliding member 32 can be omitted, and the surgical handle 31 can be directly fixed to the abutment member 33.
[0040] like Figure 4 , Figure 6 , Figure 7 , Figure 8 As shown, in the sound-generating device provided in this embodiment, a guide groove 112 is provided on the inner sidewall of the front shell 11, and the sliding groove 111 is located within the guide groove 112; a guide protrusion 322 is provided on the side of the sliding member 32 near the front shell 11, and the guide protrusion 322 is embedded in the guide groove 112. The cooperation between the guide groove 112 and the guide protrusion 322 further guides and limits the movement trajectory of the moving component 3, preventing the end of the abutment from failing to contact the toothed protrusion 21 of the fixing member 2 due to the rotation of the sliding member 32 caused by the twisting of the handle 31. In addition, as an alternative embodiment, the guide groove 112 can be provided on the sliding member 32, and the guide protrusion 322 can be provided on the inner sidewall of the front shell 11.
[0041] like Figure 9 , Figure 10As shown, in the sound-generating device provided in this embodiment, a positioning part 121 is provided on the rear shell 12. The positioning part 121 slides in contact with the side of the abutment 33 away from the slider 32. The positioning part 121 can prevent the abutment 33 from loosening or falling off the slider 32, keeping the abutment 33 in contact with the toothed protrusion 21. Specifically, the positioning part 121 is configured as a square frame structure surrounded by multiple plate-like structures. In addition, as an alternative embodiment, the positioning part 121 can be omitted, and the abutment 33 can be fixedly connected to the slider 32 by fasteners or buckles; the positioning part 121 can also be configured as a column or other structure.
[0042] like Figure 2 , Figure 4 As shown, in the sound-generating device provided in this embodiment, the abutment 33 is configured to gradually narrow along the direction close to the fixing member 2. This allows the end of the abutment 33 near the fixing member 2 to have better elastic deformation, preventing jamming due to excessive hardness at the end of the abutment 33. Specifically, the abutment 33 is configured in the shape of a pointer. Alternatively, as an alternative embodiment, the abutment 33 can also be configured as a plate-like structure arranged perpendicular to the fixing member 2.
[0043] like Figure 1 , Figure 2 , Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, in the sound-generating device provided in this embodiment, a rotating member 4 is rotatably disposed on the housing 1. The rotating member 4 is provided with multiple anti-disengagement fasteners 41. The front housing 11 is provided with a mounting groove 113 for embedding the rotating member 4, and the anti-disengagement fasteners 41 engage with the groove opening of the mounting groove 113. A positioning post 122 extending towards the front housing 11 is provided on the inner sidewall of the rear housing 12, and the positioning post 122 abuts against the rotating member 4. The anti-disengagement fasteners 41 engage with the groove opening of the mounting groove 113 to prevent the rotating member 4 from sliding out of the mounting groove 113. The positioning post 122 on the rear housing 12 prevents the rotating member 4 from sliding inwards, ensuring stable rotation of the rotating member 4 within the mounting groove 113. Specifically, the rotating member 4 is provided with a handle 43 for easy rotation. Alternatively, as an alternative implementation, the mounting groove 113 can be omitted, and a rotating shaft can be provided on the housing 1, with the rotating member 4 rotatably mounted on the rotating shaft.
[0044] like Figure 2 , Figure 8 , Figure 10 ,Figure 11 As shown, in the sound-generating device provided in this embodiment, an elastic plate is provided on the side wall of the mounting groove 113, and a limiting protrusion 1131 protruding toward the center of the mounting groove 113 is provided on the elastic plate. A limiting groove 42 for embedding the limiting protrusion 1131 is provided on the side wall of the rotating member 4, and at least two limiting grooves 42 are provided at intervals; and / or, a plurality of blocking portions 1132 extending toward the direction away from the rotating member 4 are provided on the side wall of the mounting groove 113, and the blocking portions 1132 cooperate with the anti-disengagement fastener 41. The limiting protrusion 1131 slides along the side wall of the rotating member 4. The elastic plate is slightly deformed under pressure. When the limiting protrusion 1131 aligns with one of the limiting grooves 42, the elastic plate returns to its original shape under the action of elastic force, and the limiting protrusion 1131 is embedded in the limiting groove 42. The rotating member 4 rotates to the first position, and then rotates in the opposite direction, compressing the elastic plate and causing it to deform slightly, causing the limiting protrusion 1131 to disengage from the limiting groove 42 and slide along the side wall of the rotating member 4 until it aligns with the other limiting groove 42. The rotating member 4 then rotates to the second position. When the rotating member 4 rotates to the first and second positions, the blocking part 1132 blocks the anti-disengagement protrusion, indicating that the rotation should be reversed. Specifically, a support plate is provided on the side of the elastic plate away from the limiting protrusion 1131. Alternatively, as an alternative implementation, the limiting groove 42 and the limiting protrusion 1131 can be omitted, and a torsion spring can be provided on the rotating member 4 to achieve automatic rotation after the rotating member 4 rotates.
[0045] like Figure 1 , Figure 2 , Figure 8 , Figure 9 As shown, in the sound-generating device provided in this embodiment, a sphere 5 is rotatably disposed on the housing 1, and a notch 114 for exposing the sphere 5 is provided on the front housing 11 and / or the rear housing 12. The notch 114 on the front housing 11 and / or the rear housing 12 exposes at least a portion of the surface of the sphere 5, allowing the sphere 5 to be rotated, thereby revealing changes in the pattern on the surface of the sphere 5, further increasing the fun of the sound-generating device. Specifically, a support 6 is provided on the front housing 11 and the rear housing 12, and the sphere 5 is rotatably disposed on the support 6. At least two patterns are provided on the sphere 5. Alternatively, as an alternative embodiment, the sphere 5 can be omitted, and sound generation can be increased simply by the sliding of the moving component 3 on the toothed protrusion 21 of the fixing member 2.
[0046] Specifically, the notch 114 is provided on the front shell 11, and the rear shell 12 is provided with a clearance groove 123 for accommodating the sphere 5. Alternatively, as an alternative embodiment, the clearance groove 123 can be omitted, and both the front shell 11 and the rear shell 12 are provided with a notch 114 for exposing the sphere 5.
[0047] How to use:
[0048] like Figure 1 As shown, the sound-generating device provided in this embodiment, when in use, moves the handle 31 back and forth by pushing and pulling, causing the sliding member 32 to drive the abutment member 33 to slide back and forth between the multiple toothed protrusions 21 of the fixing member 2, thereby producing a clicking sound; the rotating member 4 is turned, causing the rotating member 4 to rotate and be locked and limited by the cooperation of the limiting protrusion 1131 and the limiting groove 42, and then the rotating member 4 is turned in the opposite direction; the sphere 5 is turned to rotate, causing the pattern exposed at the notch 114 to change.
[0049] In addition, this embodiment also provides a baby walker, including a chassis frame, an upper plate, a seat, and a sound-generating device as described in the above embodiments. The upper plate is disposed on the chassis frame, the seat is disposed on the upper plate, and a base 7 is rotatably disposed on the housing 1 of the sound-generating device, and the base 7 is detachably disposed on the upper plate. By employing the sound-generating device described in the above embodiments, the fun of the baby walker is increased, and the usage time of the baby walker is extended.
[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.
Claims
1. A sound-generating device, characterized in that, include: Shell (1); A fastener (2) is fixedly mounted on the housing (1), and the fastener (2) is provided with a plurality of toothed protrusions (21); A movable component (3) is slidably disposed on the housing (1), one end of the movable component (3) is in contact with the toothed protrusions (21) so that the movable component (3) slides on the plurality of toothed protrusions (21) to produce sound.
2. The sound-generating device according to claim 1, characterized in that, The housing (1) includes a front shell (11) and a rear shell (12). The front shell (11) is detachably mounted on the rear shell (12). The fixing member (2) is mounted on the inner side wall of the front shell (11). The front shell (11) is provided with a sliding groove (111). The moving component (3) is slidably mounted in the sliding groove (111). The sliding groove (111) is parallel to the fixing member (2).
3. The sound-generating device according to claim 2, characterized in that, The moving component (3) includes: A handle (31) is slidably disposed on the outer side wall of the front shell (11), and a connecting rod (311) is provided on the handle (31), and the connecting rod (311) is slidably disposed in the slide groove (111); A sliding member (32) is slidably disposed on the inner side wall of the front shell (11), and the sliding member (32) is connected to the connecting rod (311) by fasteners; An abutment (33) is disposed on the slider (32), and one end of the abutment (33) away from the slider (32) contacts the toothed protrusion (21).
4. The sound-generating device according to claim 3, characterized in that, A guide groove (112) is provided on the inner sidewall of the front shell (11), and the slide groove (111) is located in the guide groove (112); The slider (32) has a guide protrusion (322) on the side near the front shell (11), and the guide protrusion (322) is embedded in the guide groove (112).
5. The sound-generating device according to claim 4, characterized in that, The rear shell (12) is provided with a positioning part (121), which slides in contact with the side of the abutment (33) away from the sliding member (32).
6. The sound-generating device according to claim 3, characterized in that, The abutment (33) is configured to taper along the direction close to the fixing member (2).
7. The sound-generating device according to any one of claims 2-6, characterized in that, A rotating component (4) is rotatably provided on the housing (1), and a plurality of anti-disengagement components (41) are provided on the rotating component (4). A mounting groove (113) for embedding the rotating component (4) is provided on the front housing (11), and the anti-disengagement component (41) is engaged with the groove of the mounting groove (113). The inner wall of the rear shell (12) is provided with a positioning post (122) extending toward the front shell (11), and the positioning post (122) abuts against the rotating member (4).
8. The sound-generating device according to claim 7, characterized in that, An elastic plate is provided on the side wall of the mounting groove (113), and a limiting protrusion (1131) protruding toward the center of the mounting groove (113) is provided on the elastic plate. A limiting groove (42) for embedding the limiting protrusion (1131) is provided on the side wall of the rotating part (4), and at least two limiting grooves (42) are provided at intervals. And / or, the sidewall of the mounting groove (113) is provided with a plurality of blocking portions (1132) extending in a direction away from the rotating member (4), the blocking portions (1132) engaging with the anti-disengagement member (41).
9. The sound-generating device according to any one of claims 2-6, characterized in that, A sphere (5) is rotatably disposed on the housing (1), and a notch (114) for exposing the sphere (5) is provided on the front housing (11) and / or the rear housing (12).
10. A baby walker, characterized in that, include: The chassis frame, the upper plate, the seat, and the sound-generating device according to any one of claims 1-9, wherein the upper plate is disposed on the chassis frame, the seat is disposed on the upper plate, and a base (7) is rotatably disposed on the housing (1) of the sound-generating device, and the base (7) is detachably disposed on the upper plate.