Neck turning mechanism, bionic mechanism and plush toy

Abstract

The utility model relates to a neck turning mechanism, bionic mechanism and plush toy. The neck turning mechanism includes first drive rod subassembly, second drive rod subassembly, turning support subassembly and interval setting top support and bottom support, first drive rod subassembly, second drive rod subassembly include transmission connection's first motor and first transmission subassembly, second motor and second transmission subassembly respectively, and first motor and second motor are fixed on the opposite sides of bottom support respectively, and the opposite sides of top support or the end part of first transmission subassembly and second transmission subassembly is equipped with first universal ball head and second universal ball head respectively, and the both ends of first transmission subassembly are connected with first motor and top support respectively, and the both ends of second transmission subassembly are connected with second motor and top support respectively, and one end of turning support subassembly is fixed in one of top support and bottom support, and the other end is movably connected with the other of top support and bottom support.

Description

Technical Field

[0001] This utility model relates to the field of bionic animal technology, and in particular to a neck steering mechanism, a bionic mechanism, and a plush toy. Background Technology

[0002] Bionic animals are toys that mimic the appearance and characteristics of real animals. They are usually designed and imitated based on the forms and features of real animals in nature, aiming to bring people a more realistic touch and sense of closeness. Bionic animals not only have the appearance of real animals, but may also have some special functions, such as having movable joints, making sounds, and simulating animal movements, to increase fun and entertainment.

[0003] Bionic animals with movable joints on the market can be equipped with a neck steering mechanism. However, the existing neck steering mechanism does not perform well in representing the head tilting and nodding movements of the bionic animal, and the structural layout of the neck steering mechanism is relatively complex, which is not conducive to miniaturization. Utility Model Content

[0004] To address the technical problems of existing neck steering mechanisms having poor control effects on head tilting and nodding movements and complex structural layouts, this utility model provides a neck steering mechanism, a bionic mechanism, and a plush toy.

[0005] The present invention provides a neck steering mechanism, comprising a first drive rod assembly, a second drive rod assembly, a steering support assembly, and a top bracket and a bottom bracket spaced apart. The first drive rod assembly includes a first motor and a first transmission assembly connected by transmission; the second drive rod assembly includes a second motor and a second transmission assembly connected by transmission; the first motor and the second motor are respectively fixed to opposite sides of the bottom bracket; a first universal ball joint and a second universal ball joint are respectively provided on opposite sides of the top bracket or at the ends of the first and second transmission assemblies; one end of the first transmission assembly is connected to the working end of the first motor, and the other end is movably connected to the top bracket via the first universal ball joint; one end of the second transmission assembly is connected to the working end of the second motor, and the other end is movably connected to the top bracket via the second universal ball joint; one end of the steering support assembly is fixed to one of the top bracket and the bottom bracket, and the other end is movably connected to the other of the top bracket and the bottom bracket; the first universal ball joint and the second universal ball joint are respectively located at both ends of the same side of the steering support assembly.

[0006] Preferably, the first transmission assembly includes a first transmission member and a first lifting rod sleeved on the first transmission member, and the first motor is drivenly connected to the end of the first transmission member away from the first lifting rod to control the first lifting rod to move up and down in the length direction of the first transmission member; the second transmission assembly includes a second transmission member and a second lifting rod sleeved on the second transmission member, and the second motor is drivenly connected to the end of the second transmission member away from the second lifting rod to control the second lifting rod to move up and down in the length direction of the second transmission member.

[0007] Preferably, the first universal ball joint and the second universal ball joint are respectively located on opposite sides of the top bracket; the end of the first lifting rod away from the first motor is provided with a first ball joint bracket, and the interior of the first ball joint bracket is provided with a first movable groove adapted to the first universal ball joint; the end of the second lifting rod away from the second motor is provided with a second ball joint bracket, and the interior of the second ball joint bracket is provided with a second movable groove adapted to the second universal ball joint; the opening of the first movable groove and the opening of the second movable groove are arranged opposite to each other.

[0008] Preferably, the first ball joint bracket is provided with a first limiting port communicating with the first movable groove, and the second ball joint bracket is provided with a second limiting port communicating with the second movable groove; the first universal ball joint is provided with a first limiting member, which can slide relative to the first limiting port to control the rotation of the first universal ball joint relative to the first ball joint bracket; the second universal ball joint is provided with a second limiting member, which can slide relative to the second limiting port to control the rotation of the second universal ball joint relative to the second ball joint bracket.

[0009] Preferably, the steering support assembly includes a driven rod, a third universal joint, and a third ball joint bracket adapted to the third universal joint. The third universal joint is disposed on the driven rod, and the third ball joint bracket is disposed on the side of the top bracket facing the bottom bracket. The inner wall surface of the third ball joint bracket is provided with a third limiting member, and the third universal joint is provided with a third limiting opening. The third limiting member can slide relative to the third limiting opening to control the rotation of the top bracket relative to the driven rod.

[0010] Preferably, the first transmission component and the second transmission component are symmetrically arranged on opposite sides of the top bracket; the first transmission component and the second transmission component are either screws or lead screws, and the first transmission component is threadedly connected to the first lifting rod, and the second transmission component is threadedly connected to the second lifting rod.

[0011] Another solution to the technical problem of this utility model is to provide a bionic mechanism, which includes a head movement mechanism and the aforementioned neck steering mechanism; the head movement mechanism includes an ear component, a mouth component, an eye component, and a head transmission assembly, wherein the ear component, the mouth component, and the eye component are respectively connected to the head transmission assembly, and the head transmission assembly is used to drive the ear component, the mouth component, and / or the eye component to move; a third motor is provided on the side of the top support facing the head transmission assembly, and the working end of the third motor is connected to the bottom of the head transmission assembly to control the rotation of the head transmission assembly.

[0012] Preferably, the bionic mechanism further includes a tail movement mechanism and a central control mechanism. The tail movement mechanism includes a tail base, several tail vertebrae, and a tail tip, which are arranged sequentially and connected by universal joints. One end of the central control mechanism is connected to the neck steering mechanism through the bottom bracket, or through the first drive rod assembly and / or the second drive rod assembly. The other end of the central control mechanism is connected to the tail movement mechanism through the tail base.

[0013] Preferably, the top support is provided with a placement slot, the opening of which is located on the side near the head transmission assembly, and the third motor is detachably embedded in the placement slot.

[0014] Another solution to the technical problem of this utility model is to provide a plush toy, the plush toy including a fur coat, stuffing material and a bionic animal structure, the bionic animal structure including the above-mentioned neck steering mechanism; the bionic animal structure is disposed inside the fur coat and covered by the fur coat, and the stuffing material is disposed between the bionic animal structure and the fur coat.

[0015] Compared with the prior art, the neck steering mechanism, bionic mechanism, and plush toy provided by this utility model have the following advantages:

[0016] 1. This utility model embodiment provides a neck steering mechanism. A first universal ball joint and a second universal ball joint are respectively disposed on opposite sides of the top bracket or at the ends of the first transmission component and the second transmission component. One end of the first transmission component is independently driven by a first motor, and the other end is movably connected to the top bracket through the first universal ball joint. One end of the second transmission component is independently driven by a second motor, and the other end is movably connected to the top bracket through the second universal ball joint. A steering support component is further disposed between the spaced-apart top bracket and bottom bracket, so that the top bracket can achieve multi-dimensional rotation under the drive of the first motor and the second motor, thereby accurately realizing head tilting and nodding movements and effectively improving the performance of the movements. One end of the steering support component is fixed to one of the top bracket and the bottom bracket, and the other end is movably connected to the other of the top bracket and the bottom bracket. This can better simulate the neck structure of a real animal, making the overall structural layout of the neck steering mechanism simple and reasonable, avoiding complex mechanical transmission design, and simplifying the overall structure.

[0017] Understandably, the steering support assembly, together with the first and second drive rod assemblies located on opposite sides of the top bracket, forms a triangular support structure. This ensures rotational flexibility while enhancing the overall stability of the top bracket to prevent swaying. The first and second motors are respectively fixed on opposite sides of the bottom bracket. The first transmission assembly is movably connected to the top bracket via a first universal joint, and the second transmission assembly is movably connected to the top bracket via a second universal joint. This layout allows for more direct and stable transmission of the motor's driving force, while also facilitating motor maintenance and replacement and reducing structural interference. The inclusion of the first and second universal joints widens the rotation range of the top bracket, making the simulated tilting and nodding steering movements of the neck steering mechanism smoother and adapting to rotational requirements in different directions.

[0018] 2. In the neck steering mechanism provided in this embodiment of the utility model, the first transmission component includes a first transmission member and a first lifting rod sleeved on the first transmission member. The first motor can control the first lifting rod to move up and down in the length direction of the first transmission member. The second transmission component includes a second transmission member and a second lifting rod sleeved on the second transmission member. The second motor can control the second lifting rod to move up and down in the length direction of the second transmission member, thereby achieving precise control of the angle and amplitude of the movement when tilting or nodding the head, further improving the flexibility and accuracy of the movement. Both the first and second transmission components adopt the design of "lifting rod sleeved on the transmission member". The first motor directly drives the first lifting rod to achieve the lifting movement through the first transmission member, and the second motor directly drives the second lifting rod to achieve the lifting movement through the second transmission member. There is no need for complex intermediate transmission components such as gears and connecting rods, making the overall structure of the neck steering mechanism more compact, reducing mechanical transmission links and structural complexity, thereby improving the overall stability and reliability of the neck steering mechanism.

[0019] 3. In the neck steering mechanism provided in this embodiment of the utility model, the first ball joint bracket is adapted to the first universal ball joint through the first movable groove inside, and the second ball joint bracket is adapted to the second universal ball joint through the second movable groove inside. This ensures a stable and flexible movable connection between the first lifting rod and the top bracket, and between the second lifting rod and the top bracket. This allows the lifting motion of the first and second lifting rods to be smoothly converted into multi-dimensional rotation of the top bracket, avoiding deviations in movement due to loose connections, and further improving the accuracy of head tilting and nodding movements. The openings of the first and second movable grooves are arranged opposite to each other. This design ensures that the driving force of the first and second lifting rods on the top bracket is symmetrically arranged, ensuring that the force is evenly distributed when the first and second lifting rods drive the top bracket to rotate. This avoids swaying or jamming in head tilting and nodding movements due to uneven force distribution, and improves the stability and coordination of the movements.

[0020] 4. In the neck steering mechanism provided in this embodiment of the utility model, the rotation angles of the first and second universal ball joints are directly limited by the sliding cooperation between the first limiting port and the first limiting member, and between the second limiting port and the second limiting member. This allows for the pre-setting of the amplitude of head tilting and nodding movements without the need for additional electronic limiting devices. It prevents excessive rotation of the top support, which could damage the first and second universal ball joints located on opposite sides of the top support. Simultaneously, the angle range for head tilting and nodding can be strictly set. This design ensures that the head tilting and nodding movements simulated by the neck steering mechanism are consistent with the movements of a real animal. The accuracy of the movement is improved; the sliding guiding function of the first limiting member in the first limiting port and the sliding guiding function of the second limiting member in the second limiting port can reduce the shaking or deviation of the first and second universal ball joints during the movement, making the rotation trajectory of the top support more stable; the cooperation between the first limiting member and the first limiting port, and between the second limiting member and the second limiting port can prevent gaps from being generated between the first universal ball joint and the first ball joint support, and between the second universal ball joint and the second ball joint support due to excessive movement, avoiding jamming or abnormal noise during transmission, and improving the service life and operational reliability of the neck steering mechanism.

[0021] 5. In the neck steering mechanism provided in this embodiment of the utility model, the rotation angle of the top bracket relative to the driven rod is directly limited by the sliding fit between the third limiting port and the third limiting member. This can prevent structural damage to the movable connection between the third universal ball joint and the third ball joint bracket due to excessive movement, while ensuring that the angles of head tilting and nodding movements meet the design requirements, thus improving the accuracy of the movement execution. The driven rod is connected to the third ball joint bracket set on the top bracket through the third universal ball joint. The sliding guiding effect of the third limiting member in the third limiting port can reduce the shaking or offset of the third universal ball joint during the movement, making the support of the driven rod on the top bracket more stable. The fit between the third limiting member and the third limiting port can prevent gaps from being generated between the third universal ball joint and the third ball joint bracket due to excessive movement, avoiding jamming or abnormal noise during transmission, and improving the operational reliability of the neck steering mechanism.

[0022] 6. In the neck steering mechanism provided in this embodiment of the utility model, the first transmission component and the second transmission component are symmetrically arranged on opposite sides of the top support, so that the driving force of the first motor driving the first transmission component and the second motor driving the second transmission component is symmetrically distributed, avoiding the top support from shaking or shifting due to uneven force, ensuring the stability of the tilting and nodding movements. At the same time, the symmetrical layout can optimize the space utilization of the neck steering mechanism and reduce structural redundancy. By adopting a transmission method in which a screw or lead screw cooperates with the first lifting rod and the second lifting rod, the rotational motion of the first motor and the second motor can be converted into the linear lifting motion of the first lifting rod and the second lifting rod. Utilizing the high precision characteristics of the screw transmission, the extension and retraction amplitude of the first lifting rod and the second lifting rod can be precisely controlled. Then, the rotation angle of the top support can be adjusted by the movable connection of the first universal ball joint and the first ball joint bracket, and the second universal ball joint and the second ball joint bracket, thereby ensuring the controllability of the tilting amplitude and the nodding angle.

[0023] 7. This utility model embodiment also provides a bionic mechanism. Based on the multi-dimensional rotation of head tilting and nodding achieved by the neck turning mechanism, the head transmission component in the head movement mechanism can drive the ear component, mouth component, and eye component to achieve actions such as ear swaying, mouth opening and closing, blinking, or squinting. In conjunction with the third motor driving the head transmission component to rotate, the bionic mechanism can present a composite action of "head rotation + facial expression linkage", significantly enhancing the realism and interactivity of the bionic effect and improving the user experience. The third motor is set on the side of the top support facing the head transmission component to drive the head transmission component to achieve head shaking. The working end of the third motor is connected to the bottom of the head transmission component. The top support of the neck turning mechanism is used to provide the support foundation for head movement, avoiding the need for additional independent drive structures. This makes the transmission system of the neck and head form an integrated layout, reducing space redundancy, improving the structural compactness between the head movement mechanism and the neck turning mechanism, and reducing the assembly complexity of the bionic mechanism.

[0024] 8. In the bionic mechanism provided in this embodiment of the utility model, the tail movement mechanism, connected to the tail base, several tail vertebrae, and tail tip via universal connectors, can realize the left-right swinging and up-down bending of the tail. This is coordinated with the head tilting and nodding movements of the neck turning mechanism and the facial expressions of the head movement mechanism, making the overall movement of the bionic mechanism closer to that of a real animal, significantly improving the bionic realism and interactivity. The central control mechanism is used to realize the independent control of the head movement mechanism, neck turning mechanism, and tail movement mechanism. The central control mechanism acts as a connecting hub, with its two ends connected to the neck turning mechanism and tail movement mechanism, respectively. This design can improve the overall structural strength of the bionic mechanism, thereby extending its service life.

[0025] 9. In the bionic mechanism provided in this embodiment of the utility model, a placement slot is provided on the top support, and the third motor is detachably embedded in the placement slot. The embedding structure can form a rigid connection between the third motor and the top support, thereby preventing the third motor from being displaced due to vibration when driving the head transmission component, ensuring that the head transmission component can make a stable head-shaking movement. The detachable installation method facilitates the maintenance and replacement of the third motor. The opening of the placement slot is located on the side close to the head transmission component, so that the working end of the third motor is directly connected to the driving end of the head transmission component, shortening the power transmission path. The placement slot of the third motor can also reduce the space occupied by the connection with the head transmission component, avoid the external placement that would lead to a bulky structure, and further improve the structural compactness of the connection between the neck steering mechanism and the head transmission mechanism in the bionic mechanism.

[0026] 10. This utility model embodiment also provides a plush toy, which includes a fur coat, stuffing material, and a bionic animal structure. The bionic animal structure includes the aforementioned neck steering mechanism. The bionic animal structure is disposed inside and covered by the fur coat, and the stuffing material is disposed between the bionic animal structure and the fur coat. The neck steering mechanism is integrated into the plush toy, enabling the plush toy to perform dynamic movements such as tilting its head and nodding its head, breaking through the static form of traditional plush toys, enhancing interactivity and anthropomorphism, and improving the user's fun experience. The design of the fur coat covering the bionic animal structure can protect the internal bionic animal structure from external damage and ensure the aesthetics of the plush toy. The stuffing material is disposed between the bionic animal structure and the fur coat to enhance the tactile feel of the plush toy. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the neck steering mechanism according to an embodiment of the present invention.

[0029] Figure 2 The overall structure of the neck steering mechanism in this embodiment of the utility model explodes. Figure 1 .

[0030] Figure 3 The overall structure of the neck steering mechanism in this embodiment of the utility model explodes. Figure 2 .

[0031] Figure 4 This is an exploded view of the structure of the top support and driven rod of the neck steering mechanism in an embodiment of this utility model, which rotate relative to each other.

[0032] Figure 5 This is a schematic diagram of the overall structure of the bionic mechanism in an embodiment of this utility model.

[0033] Figure 6 This is a schematic diagram of the structure of the bionic mechanism of this utility model, in which the third motor is detachably embedded in the placement slot.

[0034] Figure 7 This is a schematic diagram of the tail motion mechanism of the bionic mechanism in this embodiment of the present invention.

[0035] Figure 8 This is a schematic diagram of the overall structure of the plush toy according to an embodiment of the present invention.

[0036] Figure 9 This is a schematic diagram illustrating the deflection effect of the neck steering mechanism in an embodiment of this utility model, demonstrating the head-turning motion.

[0037] Figure 10 This is a schematic diagram illustrating the deflection effect of the neck steering mechanism in an embodiment of this utility model to achieve a nodding motion.

[0038] Explanation of reference numerals in the attached diagram:

[0039] 10. Neck Steering Mechanism; 1. First Drive Rod Assembly; 11. First Motor; 12. First Transmission Assembly; 121. First Transmission Component; 122. First Lifting Rod; 123. First Ball Joint Bracket; 124. First Movable Slot; 125. First Limiting Port; 2. Second Drive Rod Assembly; 21. Second Motor; 22. Second Transmission Assembly; 221. Second Transmission Component; 222. Second Lifting Rod; 223. Second Ball Joint Bracket; 224. Second Movable Slot; 225. Second Limiting Port; 3. Steering Support Assembly; 31. Third Universal Ball Joint; 311. Third Limiting Port; 32. Driven Rod; 33. Third Ball Joint Bracket; 331. Third Limiting Component; 4. Top Bracket; 41. First Universal Ball Joint; 42. Second Universal Ball Joint; 5. Bottom Bracket;

[0040] 20. Bionic mechanism; 201. Head movement mechanism; 2011. Ear component; 2012. Mouth component; 2013. Eye component; 2014. Head transmission assembly; 202. Tail movement mechanism; 2021. Universal connector; 2022. Tail base; 2023. Tail vertebrae; 2024. Tail distal segment; 203. Central control mechanism; 44. Third motor; 45. Placement slot;

[0041] 30. Plush toys; 301. Fur coats; 302. Stuffing materials. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0043] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0044] It should be noted that the terms "first" and "second" in the specification and claims of this utility model are used to distinguish different objects, rather than to describe a specific order.

[0045] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0046] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0047] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0048] Please see Figure 1 and Figure 2 This utility model provides a neck steering mechanism 10, which includes a first drive rod assembly 1, a second drive rod assembly 2, a steering support assembly 3, and a top bracket 4 and a bottom bracket 5 spaced apart. The first drive rod assembly 1 includes a first motor 11 and a first transmission assembly 12 connected by transmission. The second drive rod assembly 2 includes a second motor 21 and a second transmission assembly 22 connected by transmission. The first motor 11 and the second motor 21 are respectively fixed to opposite sides of the bottom bracket 5. The top bracket 4 has a first drive rod assembly 10 on opposite sides or at the ends of the first transmission assembly 12 and the second transmission assembly 22. The first universal ball joint 41 and the second universal ball joint 42 are provided. One end of the first transmission assembly 12 is connected to the working end of the first motor 11, and the other end is movably connected to the top bracket 4 through the first universal ball joint 41. One end of the second transmission assembly 22 is connected to the working end of the second motor 21, and the other end is movably connected to the top bracket 4 through the second universal ball joint 42. One end of the steering support assembly 3 is fixed to one of the top bracket 4 and the bottom bracket 5, and the other end is movably connected to the other of the top bracket 4 and the bottom bracket 5. The first universal ball joint 41 and the second universal ball joint 42 are respectively provided at both ends of the same side of the steering support assembly 3.

[0049] In the neck steering mechanism 10 provided in this embodiment of the utility model, the first universal ball joint 41 and the second universal ball joint 42 are respectively disposed on opposite sides of the top bracket 4 or at the ends of the first transmission component 12 and the second transmission component 22. One end of the first transmission component 12 is independently driven by the first motor 11, and the other end is movably connected to the top bracket 4 through the first universal ball joint 41. One end of the second transmission component 22 is independently driven by the second motor 21, and the other end is movably connected to the top bracket 4 through the second universal ball joint 42. A steering support component 3 is further disposed between the top bracket 4 and the bottom bracket 5, which are spaced apart, so that the top bracket 4 can achieve multi-dimensional rotation under the drive of the first motor 11 and the second motor 21, thereby accurately realizing the head tilting and nodding actions and effectively improving the action presentation effect. The first motor 11 and the second motor 21 are respectively fixed on opposite sides of the bottom bracket 5. The first transmission component 12 is movably connected to the top bracket 4 through the first universal ball joint 41, and the second transmission component 22 is movably connected to the top bracket 4 through the second universal ball joint 42. This layout allows the motor's driving force to be transmitted more directly and stably, and also facilitates the maintenance and replacement of the motor, reducing structural interference.

[0050] Specifically, the top support 4 can rotate in multiple dimensions under the drive of the first motor 11 and the second motor 21. The neck steering mechanism 10 achieves the deflection effect of head tilting movement, as shown in the figure. Figure 9 As shown, when the head is turned to one side of the first transmission component 12, the first motor 11 drives the first transmission component 12 to move downward in the vertical direction, or the first motor 11 does not drive the first transmission component 12, and the second motor 21 drives the second transmission component 22 to move upward in the vertical direction, so that the neck steering mechanism 10 can exhibit a head-turning action; the neck steering mechanism 10 achieves the head-nodding action deflection effect as shown in the figure. Figure 10 As shown, when the head is turned upward or downward, the first motor 11 and the second motor 21 drive the first transmission component 12 and the second transmission component 22 synchronously, so that the first transmission component 12 and the second transmission component 22 move upward or downward in the vertical direction at the same time, so that the neck steering mechanism 10 can nod.

[0051] Understandably, one end of the steering support component 3 is fixed to one of the top bracket 4 and the bottom bracket 5, while the other end is movably connected to the other of the top bracket 4 and the bottom bracket 5. This can better simulate the neck structure of a real animal, making the overall structural layout of the neck steering mechanism 10 simple and reasonable, avoiding complex mechanical transmission design, and simplifying the overall structure. Through this design, this utility model solves the technical problems of poor presentation effect and relatively complex structural layout of existing neck steering mechanisms for controlling head tilting and nodding movements.

[0052] It should be noted that the steering support assembly 3 and the first drive rod assembly 1 and the second drive rod assembly 2 on opposite sides of the top bracket 4 form a triangular support structure, which enhances the overall stability of the top bracket 4 while ensuring rotational flexibility, thereby preventing swaying. In some embodiments, the distance between the first drive rod assembly 1 and the steering support assembly 3 and the distance between the second drive rod assembly 2 and the steering support assembly 3 are the same.

[0053] As an optional implementation, the first universal ball joint 41 and the second universal ball joint 42 can be respectively disposed on opposite sides of the top bracket 4, or respectively disposed at the ends of the first transmission assembly 12 and the second transmission assembly 22. It is understood that when the first universal ball joint 41 and the second universal ball joint 42 are respectively disposed on opposite sides of the top bracket 4, the ends of the first transmission assembly 12 and the second transmission assembly 22 can be correspondingly provided with ball joint brackets to achieve a fit, so that the top bracket 4 is movably connected to the first transmission assembly 12 and the second transmission assembly 22 respectively; when the first universal ball joint 41 and the second universal ball joint 42 are respectively disposed at the ends of the first transmission assembly 12 and the second transmission assembly 22, the ball joint brackets can be correspondingly disposed on opposite sides of the top bracket 4 to achieve a fit. The two arrangements of the first universal ball joint 41 and the second universal ball joint 42 can be substituted equivalently without affecting the tilting and nodding effects of the neck steering mechanism 10.

[0054] Please see Figure 2 The first transmission assembly 12 includes a first transmission member 121 and a first lifting rod 122 sleeved on the first transmission member 121. A first motor 11 is driven to the end of the first transmission member 121 away from the first lifting rod 122 to control the first lifting rod 122 to move up and down in the length direction of the first transmission member 121. The second transmission assembly 22 includes a second transmission member 221 and a second lifting rod 222 sleeved on the second transmission member 221. A second motor 21 is driven to the end of the second transmission member 221 away from the second lifting rod 222 to control the second lifting rod 222 to move up and down in the length direction of the second transmission member 221.

[0055] In the neck steering mechanism 10 provided in this embodiment of the utility model, the first motor 11 can control the first lifting rod 122 to move up and down in the length direction of the first transmission member 121, and the second motor 21 can control the second lifting rod 222 to move up and down in the length direction of the second transmission member 221, so as to achieve precise control of the angle and amplitude of the movement when tilting the head and nodding, and further improve the flexibility and accuracy of the movement.

[0056] Understandably, both the first transmission component 12 and the second transmission component 22 of this utility model adopt the design of "a lifting rod sleeved on the transmission component". The first motor 11 directly drives the first lifting rod 122 through the first transmission component 121 to achieve lifting and lowering movement, and the second motor 21 directly drives the second lifting rod 222 through the second transmission component 221 to achieve lifting and lowering movement. There is no need for complex intermediate transmission components such as gears and connecting rods, which makes the overall structure of the neck steering mechanism 10 more compact, reduces mechanical transmission links and reduces structural complexity, thereby improving the overall stability and reliability of the neck steering mechanism 10.

[0057] Please see Figure 2 and Figure 3 In some embodiments, the first universal ball joint 41 and the second universal ball joint 42 are respectively located on opposite sides of the top bracket 4; the first universal ball joint 41 and the second universal ball joint 42 can widen the rotation range of the top bracket 4, making the simulated tilting and nodding steering movements of the neck steering mechanism 10 smoother and adapting to rotation requirements in different directions. The end of the first lifting rod 122 away from the first motor 11 is provided with a first ball joint bracket 123, and the interior of the first ball joint bracket 123 is provided with a first movable groove 124 adapted to the first universal ball joint 41; the end of the second lifting rod 222 away from the second motor 21 is provided with a second ball joint bracket 223, and the interior of the second ball joint bracket 223 is provided with a second movable groove 224 adapted to the second universal ball joint 42.

[0058] In the neck steering mechanism 10 provided in this embodiment of the utility model, the first ball joint bracket 123 is adapted to and connected to the first universal ball joint 41 through the internal first movable groove 124, and the second ball joint bracket 223 is adapted to and connected to the second universal ball joint 42 through the internal second movable groove 224. This ensures that a stable and flexible movable connection is formed between the first lifting rod 122 and the top bracket 4, and between the second lifting rod 222 and the top bracket 4. This allows the lifting and lowering movements of the first lifting rod 122 and the second lifting rod 222 to be smoothly converted into multi-dimensional rotation of the top bracket 4, avoiding deviations in movement due to loose connections, and further improving the accuracy of head tilting and nodding movements.

[0059] It should be noted that when the neck steering mechanism 10 of this utility model performs the tilting action, the top support 4 will deflect. Since the first universal ball joint 41 and the second universal ball joint 42 are respectively fixed on both sides of the top support 4, it is necessary to satisfy the clearance fit between the first universal ball joint 41 and the first ball joint support 123, the clearance fit between the second universal ball joint 42 and the second ball joint support 223, and the clearance fit and / or elastic deformation between the first lifting rod 122 and the first transmission member 121, and between the second lifting rod 222 and the second transmission member 221, so as to provide the displacement compensation amount required when the top support 4 deflects.

[0060] Among them, based on the clearance fit between the first universal ball joint 41 and the first ball joint bracket 123, and between the second universal ball joint 42 and the second ball joint bracket 223, the displacement compensation required when the deviation is small is also relatively small. It can be achieved by clearance fit or elastic deformation between the first lifting rod 122 and the first transmission component 121, and between the second lifting rod 222 and the second transmission component 221. If the deviation is large, the displacement compensation required is also increased accordingly. At this time, it is necessary to satisfy both clearance fit and elastic deformation between the first lifting rod 122 and the first transmission component 121, and between the second lifting rod 222 and the second transmission component 221.

[0061] Furthermore, the opening of the first movable slot 124 is positioned opposite to the opening of the second movable slot 224. This design ensures that the driving force of the first lifting rod 122 and the second lifting rod 222 on the top support 4 is symmetrically arranged, ensuring that the first lifting rod 122 and the second lifting rod 222 are evenly stressed during the rotation of the top support 4, avoiding swaying or jamming of the head tilting and nodding movements due to uneven stress, and improving the stability and coordination of the movements.

[0062] Understandably, the first movable groove 124 inside the first ball joint bracket 123 provides a standardized installation interface for the first universal ball joint 41. Similarly, the second movable groove 224 inside the second ball joint bracket 223 also provides a standardized installation interface for the second universal ball joint 42. This reduces the use of additional connectors and simplifies the assembly process between the first transmission component 12 and the top bracket 4, and between the second transmission component 22 and the top bracket 4. At the same time, the symmetrical opening layout between the first movable groove 124 and the second movable groove 224 optimizes the utilization of structural space and avoids lateral space expansion caused by asymmetrical opening directions. For example, when the openings of the first movable groove 124 and the second movable groove 224 are set in opposite directions, the first transmission component 12 and the second transmission component 22 on both sides may need a larger lateral spacing to achieve uniform force distribution during tilting and nodding movements.

[0063] The present invention, through the openings provided by opposite sides, allows the first transmission component 12 and the second transmission component 22 to be compactly arranged on opposite sides of the top bracket 4 in the lateral space, resulting in a more compact layout. This reduces the overall structural width of the neck steering mechanism 10, meets the requirements of miniaturization, and further simplifies the overall assembly complexity of the neck steering mechanism 10.

[0064] In one embodiment, the first ball joint bracket 123 is integrally molded and installed on one side of the top bracket 4, and the second ball joint bracket 223 is integrally molded and installed on the other side of the top bracket 4. By eliminating the weak points and gaps that may be generated by traditional splicing processes, the overall connection strength can be effectively improved, ensuring the installation stability of the first lifting rod 122 and the second lifting rod 222. This avoids the first lifting rod 122 or the second lifting rod 222 from separating from the top bracket 4 due to force, and prevents the first ball joint bracket 123 or the second ball joint bracket 223 from detaching from the top bracket 4 and losing the tilting and nodding functions. This extends the service life of the neck steering mechanism 10, and also reduces the cost of separately molding the first ball joint bracket 123 and the second ball joint bracket 223 and the assembly cost, further enhancing the structural stability.

[0065] Please continue reading. Figure 2 and Figure 3 The first ball joint bracket 123 is provided with a first limiting port 125 communicating with the first movable groove 124, and the second ball joint bracket 223 is provided with a second limiting port 225 communicating with the second movable groove 224; the first universal ball joint 41 is provided with a first limiting member, which can slide relative to the first limiting port 125 to control the rotation of the first universal ball joint 41 relative to the first ball joint bracket 123; the second universal ball joint 42 is provided with a second limiting member, which can slide relative to the second limiting port 225 to control the rotation of the second universal ball joint 42 relative to the second ball joint bracket 223.

[0066] In the neck steering mechanism 10 provided in this embodiment of the utility model, the rotation angles of the first universal ball joint 41 and the second universal ball joint 42 are directly limited by the sliding cooperation between the first limiting port 125 and the first limiting member, and between the second limiting port 225 and the second limiting member. The amplitude of the head tilting and nodding movements can be preset without the need for additional electronic limiting devices. This avoids excessive rotation of the top support 4, which could damage the first universal ball joint 41 and the second universal ball joint 42 located on opposite sides of the top support 4. At the same time, the angle range of head tilting and nodding can be strictly set. Through this design, it can be ensured that the head tilting and nodding movements simulated by the neck steering mechanism 10 are consistent with the movements of real animals, thus improving the accuracy of the movement presentation.

[0067] It should be noted that the sliding guiding function of the first limiting member within the first limiting port 125 and the sliding guiding function of the second limiting member within the second limiting port 225 can reduce the shaking or offset of the first universal ball joint 41 and the second universal ball joint 42 during the movement, making the rotation trajectory of the top support 4 more stable. In addition, the cooperation between the first limiting member and the first limiting port 125, and between the second limiting member and the second limiting port 225, can also prevent gaps from forming between the first universal ball joint 41 and the first ball joint support 123, and between the second universal ball joint 42 and the second ball joint support 223 due to excessive movement, avoiding jamming or abnormal noise during transmission, and improving the service life and operational reliability of the neck steering mechanism 10.

[0068] Please see Figure 2 and Figure 4 In some embodiments, the steering support assembly 3 includes a driven rod 32, a third universal joint 31, and a third ball joint bracket 33 adapted to the third universal joint 31. The third universal joint 31 is disposed on the driven rod 32, and the third ball joint bracket 33 is disposed on the side of the top bracket 4 facing the bottom bracket 5. The inner wall surface of the third ball joint bracket 33 is provided with a third limiting member 331, and the third universal joint 31 is provided with a third limiting opening 311. The third limiting member 331 can slide relative to the third limiting opening 311 to control the rotation of the top bracket 4 relative to the driven rod 32.

[0069] In the neck steering mechanism 10 provided in this embodiment of the utility model, the rotation angle of the top bracket 4 relative to the driven rod 32 is directly limited by the sliding cooperation between the third limiting port 311 and the third limiting member 331. This can prevent structural damage to the movable connection between the third universal ball joint 31 and the third ball joint bracket 33 due to excessive movement, while ensuring that the angles of head tilting and nodding movements meet the design requirements and improving the accuracy of movement execution.

[0070] Understandably, the driven rod 32 is connected to the third ball joint bracket 33 on the top bracket 4 via the third universal ball joint 31. The sliding guide effect of the third limiting member 331 in the third limiting port 311 can reduce the shaking or offset of the third universal ball joint 31 during the movement, making the support of the driven rod 32 on the top bracket 4 more stable. The cooperation between the third limiting member 331 and the third limiting port 311 can prevent the gap between the third universal ball joint 31 and the third ball joint bracket 33 from being generated due to excessive movement, avoid jamming or abnormal noise during transmission, and improve the operational reliability of the neck steering mechanism 10.

[0071] As one implementation method, the third ball joint bracket 33 and the top bracket 4 facing the bottom bracket 5 are an integral structure; by eliminating the weak points and gaps that may be generated by traditional splicing process, it is possible to avoid the separation or breakage between the third ball joint bracket 33 and the top bracket 4 due to force, thereby detaching from the top bracket 4, effectively improving the overall connection strength, ensuring the stability of the driven rod 32 after installation, reducing the risk of loosening or falling off, and thus extending the service life of the neck steering mechanism 10.

[0072] Please continue reading. Figure 2 The first transmission component 121 and the second transmission component 221 are symmetrically arranged on opposite sides of the top support 4. This design allows the driving force of the first motor 11 driving the first transmission component 121 and the second motor 21 driving the second transmission component 221 to be symmetrically distributed, avoiding the top support 4 from shaking or shifting due to uneven force, ensuring the stability of head tilting and nodding movements. At the same time, the symmetrical layout can optimize the space utilization of the neck steering mechanism 10 and reduce structural redundancy.

[0073] Furthermore, the first transmission component 121 and the second transmission component 221 are either screws or lead screws, and the first transmission component 121 and the first lifting rod 122, and the second transmission component 221 and the second lifting rod 222 are threaded together.

[0074] In the neck steering mechanism 10 provided in this embodiment of the utility model, by adopting a transmission method in which a screw or lead screw cooperates with the first lifting rod 122 and the second lifting rod 222, the rotational motion of the first motor 11 and the second motor 21 can be converted into the linear lifting motion of the first lifting rod 122 and the second lifting rod 222. Utilizing the high precision characteristics of the screw drive, the extension and retraction range of the first lifting rod 122 and the second lifting rod 222 can be precisely controlled. Furthermore, the rotation angle of the top support 4 can be adjusted by the movable connection between the first universal ball joint 41 and the first ball joint bracket 123, and the second universal ball joint 42 and the second ball joint bracket 223, thereby ensuring the controllability of the tilting amplitude and the nodding angle.

[0075] Please see Figure 6 As one implementation method, the neck steering mechanism 10 in the bionic animal can be connected to the head structure. By setting a third motor 44 on the side of the top support 4 facing the head structure, and connecting the working end of the third motor 44 to the bottom end of the head structure, the rotation of the head structure can be controlled. With this design, based on the head tilting and nodding actions achieved by the neck steering mechanism 10, the head structure can be rotated in conjunction with the third motor 44 to present a head shaking action, thereby realizing the head tilting + head shaking or nodding + head shaking action, enhancing the realism of the bionic effect, increasing the fun and entertainment, and improving the user experience.

[0076] Optionally, the top bracket 4 is provided with a placement slot 45, the opening of which is located on the side near the head structure. The third motor 44 is detachably embedded in the placement slot 45. The embedded structure can form a rigid connection between the third motor 44 and the top bracket 4, thereby preventing the third motor 44 from being displaced due to vibration when driving the head structure, ensuring that the head structure can make a stable head-shaking motion. The detachable installation method facilitates the maintenance and replacement of the third motor 44.

[0077] Understandably, the opening of the placement slot 45 is located on the side close to the head structure, so that the working end of the third motor 44 is directly connected to the driving end of the head structure, shortening the power transmission path; the placement of the third motor 44 in the placement slot 45 can also reduce the space occupied by its connection with the head structure, avoid the third motor 44 being external and causing the structure to be bulky, and further improve the structural compactness of the connection between the neck steering mechanism 10 and the head structure.

[0078] It should be noted that the third motor 44 is detachably embedded in the placement slot 45, which can save space in the vertical direction, reduce space occupation and avoid structural bulkiness. The depth of the placement slot 45 can be adjusted according to the actual situation. The side of the third motor 44 near the head structure can be flush with the top surface of the top support 4, or slightly higher or lower than the top surface of the top support 4, as long as the head shaking action of the head structure and the tilting and nodding actions of the neck turning mechanism 10 do not interfere with each other. The above description is only one embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions and improvements made within the principles of this utility model should be included within the protection scope of this utility model.

[0079] Please see Figure 5 and Figure 6 This utility model embodiment also provides a bionic mechanism 20, which includes a head movement mechanism 201 and the aforementioned neck steering mechanism 10. The head movement mechanism 201 includes an ear component 2011, a mouth component 2012, an eye component 2013, and a head transmission assembly 2014. The ear component 2011, the mouth component 2012, and the eye component 2013 are respectively connected to the head transmission assembly 2014. The head transmission assembly 2014 is used to drive the ear component 2011, the mouth component 2012, and / or the eye component 2013 to move. A third motor 44 is provided on the side of the top support 4 facing the head transmission assembly 2014. The working end of the third motor 44 is connected to the bottom of the head transmission assembly 2014 to control the rotation of the head transmission assembly 2014.

[0080] In the bionic mechanism 20 provided in this embodiment of the present invention, based on the multi-dimensional rotation of head tilting and nodding achieved by the neck turning mechanism 10, the head transmission component 2014 in the head movement mechanism 201 can drive the ear component 2011, mouth component 2012 and eye component 2013 to achieve actions such as ear swaying, mouth opening and closing, blinking or squinting. In conjunction with the third motor 44 driving the head transmission component 2014 to rotate, the bionic mechanism 20 can present a composite action of "head rotation + facial expression linkage", which significantly enhances the realism and interactivity of the bionic effect.

[0081] Understandably, the third motor 44 is mounted on the side of the top support 4 facing the head transmission assembly 2014 to drive the head transmission assembly 2014 to achieve head shaking. The working end of the third motor 44 is connected to the bottom of the head transmission assembly 2014. The top support 4 of the neck steering mechanism 10 is used to provide a support base for head movement, avoiding the need for additional independent drive structures. This allows the neck and head transmission systems to form an integrated layout, reducing space redundancy, improving the structural compactness between the head movement mechanism 201 and the neck steering mechanism 10, and reducing the assembly complexity of the bionic mechanism 20.

[0082] It should be noted that the connection between the third motor 44 and the head transmission component 2014 can precisely control the rotation angle of the head. Combined with the dual-motor drive of the neck steering mechanism 10, the head of the bionic mechanism 20 can shake its head when rotating horizontally, nod when tilting, and tilt its head when swaying, thus achieving precise control of head shaking, nodding, and tilting. At the same time, the drive of the head transmission component 2014 to the ears, mouth, and eyes can be preset with the drive design of the head transmission component 2014 to ensure the coordination and accuracy of the movement of the ear component 2011, mouth component 2012, and eye component 2013.

[0083] Specifically, the ear component 2011, mouth component 2012, and eye component 2013 respectively simulate the ears, mouth, and eyes of a real animal, while the head transmission assembly 2014 simulates the head of a real animal. The head transmission assembly 2014 can drive one, two, or three of the ear component 2011, mouth component 2012, and eye component 2013, and can be adjusted according to actual needs. In this embodiment, the head transmission assembly 2014 is used to drive the movement of the ear component 2011, mouth component 2012, and eye component 2013.

[0084] Please see Figure 1 , Figure 5 and Figure 7The bionic mechanism 20 also includes a tail movement mechanism 202 and a central control mechanism 203. The tail movement mechanism 202 includes a tail base 2022, several tail vertebrae 2023 and a tail distal segment 2024, which are arranged in sequence and connected by a universal connector 2021. One end of the central control mechanism 203 is connected to the neck steering mechanism 10 through a bottom bracket 5, or through a first drive rod assembly 1 and / or a second drive rod assembly 2. The other end of the central control mechanism 203 is connected to the tail movement mechanism 202 through the tail base 2022.

[0085] In the bionic mechanism 20 provided in this embodiment of the present invention, the tail base 2022, several tail vertebrae 2023 and tail tip 2024 of the tail movement mechanism 202 are connected by a universal connector 2021, which can realize the left and right swinging and up and down bending of the tail. It is linked with the head tilting and nodding actions of the neck turning mechanism 10 and the facial expressions of the head movement mechanism 201, making the overall movement of the bionic mechanism 20 closer to that of a real animal, and significantly improving the bionic realism and interactivity of the bionic mechanism 20.

[0086] Understandably, the tail movement mechanism 202 in this embodiment has fewer types of parts, a simple structure, and is easy to manufacture. Furthermore, the tail base 2022 is connected to the tail segment 2023, the tail segments 2023 are connected to each other, and the tail segment 2023 is connected to the tail distal segment 2024 via universal connectors 2021. This allows for convenient detachable installation without the need for external tools, greatly saving manpower and improving the product quality standards of the bionic mechanism 20. Specifically, in this embodiment, there is one tail base 2022 and one tail distal segment 2024. The number of tail segments 2023 can be determined according to the actual needs of the product. The number of universal connectors 2021 is one less than the total number of tail base 2022, tail segments 2023, and tail distal segment 2024. The tail base 2022, tail segments 2023, tail distal segment 2024, and universal connectors 2021 are all made of plastic, which has high strength and a certain degree of toughness.

[0087] In some embodiments, the central control mechanism 203 is provided with a servo motor for controlling the tail motion mechanism 202. The servo motor is provided with several control lines. One end of the control line is connected to the servo motor, and the other end extends to the tail base 2022, tail segment 2023 and tail distal segment 2024 of the tail motion mechanism 202, and is fixed to the tail distal segment 2024. Through this design, the tail of the bionic mechanism 20 can be controlled by tightening or loosening the control lines driven by the servo motor to achieve motion control of the tail motion mechanism 202. The movement is flexible, the control is convenient, and the bionic effect is good.

[0088] It should be noted that the central control mechanism 203 is used to achieve independent control of the head movement mechanism 201, the neck steering mechanism 10 and the tail movement mechanism 202. The central control mechanism 203 serves as a connecting hub, with its two ends connected to the neck steering mechanism 10 and the tail movement mechanism 202 respectively. This can improve the overall structural strength of the bionic mechanism 20 and thus extend the service life of the bionic mechanism 20.

[0089] In some embodiments, the bionic mechanism 20 is also provided with an audio component connected to the central control mechanism 203. The audio component has built-in animal sounds, laughter and breathing sounds, etc., and a speaker can also be installed in the central control mechanism 203.

[0090] Please continue reading. Figure 5 and Figure 6 The top bracket 4 is provided with a placement slot 45, and the opening of the placement slot 45 is located on the side near the head transmission component 2014. The third motor 44 is detachably embedded in the placement slot 45. The embedded structure can form a rigid connection between the third motor 44 and the top bracket 4, thereby preventing the third motor 44 from being displaced due to vibration when driving the head transmission component 2014, ensuring that the head transmission component 2014 can make a smooth head-shaking motion. The detachable installation method facilitates the maintenance and replacement of the third motor 44.

[0091] Understandably, the opening of the placement slot 45 is located on the side close to the head transmission component 2014, so that the working end of the third motor 44 is directly connected to the driving end of the head transmission component 2014, shortening the power transmission path; the placement of the third motor 44 in the placement slot 45 can also reduce the space occupied by its connection with the head transmission component 2014, avoid the third motor 44 being external and causing structural bulkiness, and further improve the structural compactness of the connection between the neck steering mechanism 10 and the head transmission mechanism in the bionic mechanism 20.

[0092] It should be noted that the third motor 44 is detachably embedded in the placement slot 45, which can save space in the vertical direction, reduce space occupation and avoid structural bulkiness, and improve the overall structural compactness of the bionic mechanism 20. The depth of the placement slot 45 can be adjusted according to the actual situation. The side of the third motor 44 near the head transmission component 2014 can be flush with the top surface of the top support 4, or slightly higher or lower than the top surface of the top support 4, as long as the head shaking action of the head transmission component 2014 and the head tilting and nodding actions of the neck turning mechanism 10 do not interfere with each other. The above description is only one embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions and improvements made within the principles of this utility model should be included within the protection scope of this utility model.

[0093] Please see Figure 8This utility model embodiment also provides a plush toy 30, which includes a fur coat 301, a filling material 302, and a bionic animal structure. The bionic animal structure includes the aforementioned neck steering mechanism 10. The bionic animal structure is disposed inside the fur coat 301 and is covered by the fur coat 301. The filling material 302 is disposed between the bionic animal structure and the fur coat 301.

[0094] Understandably, the neck steering mechanism 10 is integrated into the plush toy 30, enabling the plush toy 30 to perform dynamic movements such as tilting and nodding its head. This breaks through the static form of traditional plush toys 30, enhances interactivity and anthropomorphism, and improves the user's fun experience. The design of the fur coat 301 covering the bionic animal structure can form a physical barrier on the outer surface of the bionic animal structure, protecting the internal bionic animal structure from external damage and ensuring the aesthetics of the plush toy 30. The filling material 302 is placed between the bionic animal structure and the fur coat 301 to enhance the tactile feel of the plush toy 30.

[0095] In some embodiments, the filler 302 is made of flexible filling materials such as PP cotton or memory foam, which has good resilience and can improve the user experience.

[0096] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A neck steering mechanism, characterized in that, The neck steering mechanism includes a first drive rod assembly, a second drive rod assembly, a steering support assembly, and a top bracket and a bottom bracket spaced apart. The first drive rod assembly includes a first motor and a first transmission component connected by transmission, and the second drive rod assembly includes a second motor and a second transmission component connected by transmission. The first motor and the second motor are respectively fixed to opposite sides of the bottom bracket. The top support is provided with a first universal ball joint and a second universal ball joint on opposite sides or at the ends of the first transmission component and the second transmission component, respectively. One end of the first transmission component is connected to the working end of the first motor, and the other end is movably connected to the top support through the first universal ball joint. One end of the second transmission component is connected to the working end of the second motor, and the other end is movably connected to the top support through the second universal ball joint. One end of the steering support assembly is fixed to one of the top bracket and the bottom bracket, and the other end is movably connected to the other of the top bracket and the bottom bracket. The first universal ball joint and the second universal ball joint are respectively located at both ends of the same side of the steering support assembly.

2. The neck steering mechanism as described in claim 1, characterized in that: The first transmission assembly includes a first transmission member and a first lifting rod sleeved on the first transmission member. The first motor is connected to the end of the first transmission member away from the first lifting rod to control the first lifting rod to move up and down in the length direction of the first transmission member. The second transmission assembly includes a second transmission member and a second lifting rod sleeved on the second transmission member. The second motor is connected to the end of the second transmission member away from the second lifting rod to control the second lifting rod to move up and down in the length direction of the second transmission member.

3. The neck steering mechanism as described in claim 2, characterized in that: The first universal ball joint and the second universal ball joint are respectively located on opposite sides of the top bracket; the end of the first lifting rod away from the first motor is provided with a first ball joint bracket, and the interior of the first ball joint bracket is provided with a first movable groove adapted to the first universal ball joint; the end of the second lifting rod away from the second motor is provided with a second ball joint bracket, and the interior of the second ball joint bracket is provided with a second movable groove adapted to the second universal ball joint. The opening of the first movable slot is positioned opposite to the opening of the second movable slot.

4. The neck steering mechanism as described in claim 3, characterized in that: The first ball head bracket is provided with a first limiting port communicating with the first movable groove, and the second ball head bracket is provided with a second limiting port communicating with the second movable groove; The first universal ball head is provided with a first limiting member, which can slide relative to the first limiting port to control the rotation of the first universal ball head relative to the first ball head bracket; the second universal ball head is provided with a second limiting member, which can slide relative to the second limiting port to control the rotation of the second universal ball head relative to the second ball head bracket.

5. The neck steering mechanism as described in claim 4, characterized in that: The steering support assembly includes a driven rod, a third universal joint, and a third universal joint bracket adapted to the third universal joint. The third universal joint is disposed on the driven rod, and the third universal joint bracket is disposed on the side of the top bracket facing the bottom bracket. The inner wall of the third ball joint bracket is provided with a third limiting member, and the third universal ball joint is provided with a third limiting port. The third limiting member can slide relative to the third limiting port to control the rotation of the top bracket relative to the driven rod.

6. The neck steering mechanism as described in claim 2, characterized in that: The first transmission component and the second transmission component are symmetrically arranged on opposite sides of the top bracket; The first transmission component and the second transmission component are either screws or lead screws, and the first transmission component and the first lifting rod are threaded together, and the second transmission component and the second lifting rod are threaded together.

7. A biomimetic mechanism, characterized in that, The bionic mechanism includes a head movement mechanism and a neck steering mechanism as described in any one of claims 1-6; The head movement mechanism includes an ear component, a mouth component, an eye component, and a head transmission assembly. The ear component, the mouth component, and the eye component are respectively connected to the head transmission assembly, and the head transmission assembly is used to drive the ear component, the mouth component, and / or the eye component to move. A third motor is provided on the side of the top support facing the head transmission assembly. The working end of the third motor is connected to the bottom of the head transmission assembly to control the rotation of the head transmission assembly.

8. The bionic mechanism as described in claim 7, characterized in that: The bionic mechanism also includes a tail movement mechanism and a central control mechanism. The tail movement mechanism includes a tail base, several tail vertebrae, and a tail tip, which are arranged sequentially and connected by universal connectors. One end of the central control mechanism is connected to the neck steering mechanism via the bottom bracket, or via the first drive rod assembly and / or the second drive rod assembly; the other end of the central control mechanism is connected to the tail movement mechanism via the tail base.

9. The bionic mechanism as described in claim 7, characterized in that: The top support is provided with a placement slot, the opening of which is located on the side near the head transmission assembly, and the third motor is detachably embedded in the placement slot.

10. A plush toy, characterized in that, The plush toy includes a fur coat, stuffing material, and a bionic animal structure, wherein the bionic animal structure includes a neck steering mechanism as described in any one of claims 1-6; The biomimetic animal structure is disposed inside and covered by the fur coat, and the filling material is disposed between the biomimetic animal structure and the fur coat.

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