A connection mechanism of a pet robot and a pet robot

Abstract

The utility model belongs to the technical field of simulation toys, concretely relates to a connecting mechanism and pet robot of pet robot. It includes: first drive mechanism, set up in the trunk casing of pet robot, the output shaft of first drive mechanism is connected with the first end of connecting rod, and the second end of connecting rod extends into the head cover of pet robot, the second end of connecting rod in the head cover is provided with the protective cover, and the cavity is formed in the protective cover, the output shaft of second drive mechanism is installed in the cavity, and the output shaft is orthogonal to the output shaft of first drive mechanism, first connecting piece is connected on the output shaft of second drive mechanism, and first connecting piece is also connected with the head cover of pet robot, second connecting piece is symmetrically arranged with first connecting piece, and is rotatably connected on the protective cover, and second connecting piece is also connected with the head cover, the utility model is used to solve the problem of unstable action structure and low interesting of pet robot.

Description

Technical Field

[0001] This utility model belongs to the field of simulation toy technology, specifically relating to a connection mechanism for a pet robot and a pet robot. Background Technology

[0002] With the development of artificial intelligence and robotics, pet robots are gradually entering homes as emotional companions and life assistance tools. A pet robot is a biomimetic robot that integrates mechanical design and artificial intelligence, aiming to provide users with emotional companionship, entertainment, and assistance in daily life by mimicking the physical characteristics, behavioral patterns, and interaction methods of a pet. Its core technologies encompass mechanical structure, motion control, and intelligent interaction, and it is currently widely used in scenarios such as family companionship, children's education, and rehabilitation assistance.

[0003] Currently, the limbs of bionic toys can be bent at multiple angles to imitate different movements. These moving pet robots often use complex mechanical structures such as multi-gear to complete the imitation of movements. The internal structure is complex, and when playing and interacting, dropping or hitting can easily cause damage to the internal structure, resulting in the failure of movement. Moreover, the movements are unstable, the simulation is not high, and the fun is low. Utility Model Content

[0004] To address the shortcomings of existing technologies, a connection mechanism and a pet robot are provided to solve the problems of unstable movement structure and low fun in pet robots.

[0005] On the one hand, the technical solution of this utility model to solve the above-mentioned technical problems is as follows: a connecting mechanism for a pet robot, comprising:

[0006] The first drive mechanism is located in the torso shell of the pet robot;

[0007] A connecting rod, the first end of which is connected to the output shaft of the first drive mechanism, and the second end of which extends into the head cover of the pet robot;

[0008] A protective cover is disposed on the second end of the connecting rod located in the head cover, and a cavity is formed in the protective cover;

[0009] The second drive mechanism is installed in the cavity, and its output shaft is orthogonal to the output shaft of the first drive mechanism;

[0010] The first connector is connected to the output shaft of the second drive mechanism, and the first connector is also connected to the head cover of the pet robot;

[0011] The second connector is symmetrically arranged with the first connector and rotatably connected to the protective cover. The second connector is also connected to the head cover.

[0012] Compared with existing technologies, the above technical solutions have the following beneficial effects:

[0013] The first drive mechanism drives the connecting rod to rotate, which in turn drives the top protective cover to rotate as a whole. The protective cover encloses and fixes the second drive mechanism within it, ensuring the protective effect of the second drive mechanism. At the same time, it can drive the entire second drive mechanism to rotate. The second drive mechanism drives the headgear to rotate through the first connector, completing actions in different directions. The second connector works with the first connector to assist the rotation of the headgear. The second connector is located on both sides of the protective cover, ensuring the rotational stability of the headgear. The control of the headgear's movements is more precise and stable, and it is highly entertaining. Moreover, the whole system only includes two drive mechanisms and a few transmission components such as the connecting rod, making it less prone to damage, tooth breakage, or loss.

[0014] Based on the above technical solution, the embodiments of this application can be further improved as follows:

[0015] In one embodiment, a support block is provided at the junction of the bottom of the protective cover and the outer wall of the connecting rod, and two first limiting blocks are provided on the torso housing at circumferential intervals on the connecting rod. The first limiting blocks are used to abut against and limit the support block to restrict the circumferential rotation of the connecting rod.

[0016] The support block serves two purposes: firstly, it enhances the stability of the connection between the protective cover and the connecting rod; secondly, it works in conjunction with the first limiting block on the torso housing to control the maximum rotation range of the connecting rod. Furthermore, the position of the support block between the torso housing and the head cover does not affect the free rotation of the connecting rod.

[0017] In one embodiment, the radial direction of the support block and the center of the connecting rod is perpendicular to the axial direction of the output shaft of the second drive mechanism. The support block is also provided with a limiting protrusion, which is used to abut and limit the headgear to rotate downward to the extreme position.

[0018] By setting the support block perpendicular to the axis of the second drive mechanism on the outer wall of the connecting rod, the limiting protrusion on the support block can limit the downward extreme position of the headgear when the second drive mechanism drives the headgear to pitch and rotate, thus preventing the headgear from getting stuck too low.

[0019] In one embodiment, a connecting reinforcement is provided on the output shafts of both the first drive mechanism and the second drive mechanism, the connecting reinforcement comprising:

[0020] Bushing, used to fit and fix the output shaft;

[0021] The reinforcing part is fixed to the end of the bushing away from the output shaft, and the reinforcing part is provided with a number of mounting holes at intervals around the center of the bushing.

[0022] In one embodiment, the first connector includes:

[0023] The first connecting plate is used to connect and fix it to the reinforcing part;

[0024] Several countersunk sleeves are disposed on the side of the first connecting plate away from the connecting reinforcement, for corresponding to the mounting holes;

[0025] Several reinforcing ribs are connected between adjacent countersunk sleeves. Each reinforcing rib has a connecting hole for connecting with the head cover. The outer periphery of the connecting hole extends outward to form a stepped groove.

[0026] In one embodiment, the second connector includes:

[0027] The second connecting plate is a circular second connecting plate, and a stop is provided around its circumference. The side of the protective cover is provided with a rotating groove that is consistent with the core of the output shaft of the second drive mechanism, for matching and embedding the second connecting plate. A stop is provided in the rotating groove to limit the rotation range of the second connecting plate.

[0028] The third connecting plate is disposed perpendicularly to the second connecting plate on the side of the second connecting plate away from the second driving mechanism. The third connecting plate has a connecting hole for connecting with the head cover, and the outer periphery of the connecting hole extends outward to form a stepped groove.

[0029] In one embodiment, a limiting sleeve is further included, which is sleeved on the outer periphery of the connecting rod and snapped into the torso housing.

[0030] In one embodiment, the device further includes several clips, one end of which is provided with a buckle for engaging with the head cover and / or torso shell, and the other end is provided with a snap-fit ​​portion for securing the external plush.

[0031] On the other hand, this utility model also discloses a pet robot, which includes:

[0032] Such as the connection mechanism described above;

[0033] The battery is housed within the body casing;

[0034] The PCB board is connected to the battery, the first drive mechanism and the second drive mechanism, and is used to control the operation of the first drive mechanism and the second drive mechanism.

[0035] In one embodiment, the device further includes a microphone and a speaker connected to the PCB board. The microphone and the speaker are snapped into the inside of the torso housing. The torso housing has sound holes corresponding to the microphone's receiving end and the speaker, respectively. Attached Figure Description

[0036] 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.

[0037] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0038] Figure 2 for Figure 1 A schematic diagram showing the structure with part of the torso and protective shield removed.

[0039] Figure 3 for Figure 2 A frontal view of the structure.

[0040] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of AA.

[0041] Figure 5 This is a schematic diagram of the structure of the first connecting member in this utility model.

[0042] Figure label:

[0043] 1. Headgear; 2. Torso housing; 3. First drive mechanism; 4. Connecting rod; 5. Protective cover; 6. Second drive mechanism; 7. First connector; 8. Second connector; 9. Support block; 10. First limiting block; 11. Limiting protrusion; 12. Connecting reinforcement; 13. Connecting hole; 14. Step groove; 15. Rotary groove; 16. Stop; 17. Clip; 18. Buckle; 19. Snap-fit ​​part; 20. Limiting sleeve; 25. Opening;

[0044] 21. Storage battery; 22. PCB board; 23. Microphone; 24. Speaker;

[0045] 701. First connecting plate; 702. Countersunk sleeve; 703. Reinforcing rib;

[0046] 801. Second connecting plate; 802. Third connecting plate; 803. Stop block;

[0047] 121. Bushing; 122. Reinforcing part; 123. Mounting hole. Detailed Implementation

[0048] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0049] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0050] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0051] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0053] Example 1

[0054] like Figure 1 As shown, the connection mechanism for a pet robot provided by this utility model includes: a first drive mechanism 3, a connecting rod 4, a protective cover 5, a second drive mechanism 6, a first connector 7, and a second connector 8.

[0055] The first drive mechanism 3 is disposed in the torso shell 2 of the pet robot. The first drive mechanism 3 is fixedly installed in the torso shell 2 of the robot. The first end of the connecting rod 4 is connected to the output shaft of the first drive mechanism 3, the bottom of the connecting rod 4 is fixedly connected to the output shaft of the first drive mechanism 3, and the second end extends into the head cover 1 of the pet robot. The first drive mechanism 3 can drive the connecting rod 4 to rotate around its axis. In this embodiment, the head cover 1 is the rear half of the head cover 1, and the front half that cooperates with it is not shown.

[0056] The protective cover 5 is disposed on the second end of the connecting rod 4 located in the head cover 1. A cavity is formed in the protective cover 5. The protective cover 5 can be integrally formed with the second end of the top of the connecting rod 4, or fixed by means of bonding, etc., to ensure that the rotation of the connecting rod 4 can drive the protective cover 5 to rotate. The second drive mechanism 6 is installed in the cavity. The protective cover 5 plays a protective role for the second drive mechanism 6. At the same time, since the second drive mechanism 6 is disposed in the cavity, the output shaft of the second drive mechanism 6 is orthogonal to the output shaft of the first drive mechanism 3, thereby enabling its output end to perform an action in another direction.

[0057] To facilitate the installation of the second drive mechanism 6, the protective cover 5 includes an upper protective shell and a lower protective shell. The lower protective shell can be integrally formed with the connecting rod 4. After the upper protective shell is removed, it is convenient to install the second drive mechanism 6 in the lower protective shell.

[0058] The first connector 7 is connected to the output shaft of the second drive mechanism 6. The first connector 7 is also connected to the head cover 1 of the pet robot. The head cover 1 is connected to the second drive mechanism 6 through the first connector 7. The second connector 8 is symmetrically arranged with the first connector 7 and is rotatably connected to the protective cover 5. The second connector 8 is also connected to the head cover 1. The stability of the rotation of the head cover 1 can be ensured by the two symmetrical connectors.

[0059] The first drive mechanism 3 drives the connecting rod 4 to rotate, which in turn drives the top protective cover 5 to rotate as a whole. The protective cover 5 covers and fixes the second drive mechanism 6 inside, ensuring the protective effect of the second drive mechanism 6. At the same time, it can drive the entire second drive mechanism 6 to rotate. The second drive mechanism 6 drives the head cover 1 to rotate through the first connecting piece 7, completing actions in different directions. The second connecting piece 8 cooperates with the first connecting piece 7 to assist the rotation of the head cover 1. The second connecting piece 8 is located on both sides of the protective cover 5, ensuring the rotational stability of the head cover 1.

[0060] To ensure the stability of the connection between the protective cover 5 and the connecting rod 4, a support block 9 is provided at the joint between the bottom of the protective cover 5 and the outer wall of the connecting rod 4. The support block 9 plays a role in strengthening the support. Since the connecting rod 4 needs to drive the protective cover 5 to rotate as a whole, the support block 9 can enhance the stability of the protective cover 5 and the connecting rod 4.

[0061] Two first limiting blocks 10 are arranged circumferentially on the torso housing 2 around the connecting rod 4. The first limiting blocks 10 are fixed on the torso housing 2 and do not contact the connecting rod 4. The support block 9 protruding on the connecting rod 4 can abut against the first limiting blocks 10 when rotating. The first limiting blocks 10 are used to abut against and limit the support block 9 to restrict the circumferential rotation of the connecting rod 4, thereby controlling the rotation range of the headgear 1.

[0062] The support block 9 can enhance the stability of the connection between the protective cover 5 and the connecting rod 4, and in conjunction with the first limiting block 10 on the torso housing 2, control the maximum rotation range of the connecting rod 4.

[0063] Moreover, the support block 9 is positioned on the connecting rod 4 between the torso housing 2 and the head cover 1, and this position does not affect the free rotation of the connecting rod 4.

[0064] Specifically, the radial direction of the center of the support block 9 and the connecting rod 4 is perpendicular to the axial direction of the output shaft of the second drive mechanism 6, that is, the rotation shaft of the second drive mechanism 6 points to both sides of the head cover 1, the support block 9 is located on the front side of the head cover 1, and the support block 9 is also provided with a limiting protrusion 11. The limiting protrusion 11 protrudes from the surface of the support block 9, and the limiting protrusion 11 is used to abut against and limit the extreme position of the head cover 1 to rotate downward.

[0065] Specifically, the limiting protrusion 11 can limit the downward rotation limit of the headgear 1 by abutting against the lower edge of the headgear 1.

[0066] By setting the support block 9 perpendicular to the axis of the second drive mechanism 6 on the outer wall of the connecting rod 4, when the second drive mechanism 6 drives the headgear 1 to pitch and rotate, the limiting protrusion 11 on the support block 9 can limit the downward extreme position of the headgear 1, thus preventing the headgear 1 from getting stuck too much downward.

[0067] To facilitate the connection stability of the output shaft of the drive mechanism and the stability of the output driving force, a connecting reinforcement 12 is provided on the output shaft of both the first drive mechanism 3 and the second drive mechanism 6. The first drive mechanism 3 and the second drive mechanism 6 can be implemented by a drive motor.

[0068] The connecting reinforcement 12 includes a bushing 121 and a reinforcement part 122. The reinforcement part 122 can be integrally formed and fixed with the bushing 121 using a plate-shaped component.

[0069] The bushing 121 is used to fit and fix it to the output shaft. The bushing 121 is fixedly connected to the output shaft by interference fit or bolts, etc. The reinforcing part 122 is fixed to the end of the bushing 121 away from the output shaft. The reinforcing part 122 is provided with a plurality of mounting holes 123 circumferentially around the center of the bushing 121. The mounting holes 123 are arranged radially with respect to the center of the bushing 121 to enhance the structural strength of the connection with the reinforcing part 122.

[0070] Furthermore, the mounting holes 123 are designed with different diameters to facilitate connection with different components.

[0071] In this embodiment, the first connector 7 includes: a first connecting plate 701, a plurality of countersunk sleeves 702, and a plurality of reinforcing ribs 703.

[0072] The first connecting plate 701 is used to connect and fix with the reinforcing part 122. Specifically, the first connecting plate 701 is connected to the reinforcing part 122 connected to the output shaft of the second drive mechanism 6. Fasteners such as bolts are inserted through the mounting hole 123 on the reinforcing part 122 and fixed into the countersunk sleeve 702. The countersunk sleeve 702 is provided on the side of the first connecting plate 701 away from the connecting reinforcing part 12 and is used to correspond to the mounting hole 123. The opening 25 of the countersunk sleeve 702 is aligned with the side of the reinforcing part 122. The countersunk sleeve 702 provided on the first connecting plate 701 can strengthen the fasteners passing through the mounting hole 123.

[0073] The reinforcing rib 703 is connected between adjacent countersunk sleeves 702, which not only enhances the stability of the countersunk sleeves 702, but also improves the stability of the reinforcing rib 703 and the first connecting plate 701, making the connection between the countersunk sleeve 702 and the reinforcing rib 703 more secure. The reinforcing rib 703 is provided with a connecting hole 13 for connecting with the head cover 1, and the outer periphery of the connecting hole 13 extends outward to form a stepped groove 14.

[0074] The connecting hole 13 can be a waist-shaped hole, and it is an open waist-shaped connecting hole 13, that is, one end of the connecting hole 13 forms a notch with the edge of the reinforcing rib 703, and the waist-shaped hole can facilitate the position adjustment of the fastener and the connecting hole 13.

[0075] The head cover 1 is provided with a threaded post corresponding to the connecting hole 13. The fastener passes through the connecting hole 13 and connects with the threaded hole in the threaded post. The stepped groove 14 can fit and embed the end of the threaded post, which can facilitate positioning.

[0076] Correspondingly, the second connecting member 8, which is symmetrically arranged with the first connecting member 7, includes a second connecting plate 801 and a third connecting plate 802.

[0077] The second connecting plate 801 is a circular second connecting plate 801, which serves as a rotating shaft, and a stop 803 is provided around its circumference. The protective cover 5 has a rotating groove 15 on its side that is consistent with the shaft core of the output shaft of the second drive mechanism 6, which is used to fit and embed the second connecting plate 801. The circular second connecting plate 801 is embedded in the circular rotating groove 15, so that the second connecting plate 801 can rotate freely. Moreover, the shaft core direction of the rotating groove 15 is consistent with the shaft core direction of the second drive mechanism 6. A stop 16 is provided in the rotating groove 15 to limit the rotation range of the second connecting plate 801. The rotation angle range of the second connecting plate 801 can be limited by the cooperation of the stop 16 and the stop 803. The second connecting piece 8, which includes the second connecting plate 801, is connected to the head cover 1, thereby limiting the rotation range of the head cover 1.

[0078] Moreover, unlike the upper limit protrusion 11 of the support block 9, the limitation of the second connecting plate 801 is a main range limitation, while the limit protrusion 11 is an extreme position limitation.

[0079] The third connecting plate 802 is perpendicular to the second connecting plate 801 and is disposed on the side of the second connecting plate 801 away from the second driving mechanism 6. The head cover 1 can be connected to the second connecting member 8 through the third connecting plate 802. The third connecting plate 802 has a connecting hole 13 for connecting with the head cover 1. The outer periphery of the connecting hole 13 extends outward to form a stepped groove 14. The setting method of the connecting hole 13 is the same as that on the first connecting member 7, and the setting method of the stepped groove 14 is also the same, both of which are to ensure stable connection and accurate positioning with the threaded post in the head cover 1.

[0080] In this embodiment, to ensure the rotational stability of the connecting rod 4, a limiting sleeve 20 is also included. The limiting sleeve 20 is spaced apart from the first driving mechanism 3. The limiting sleeve 20 is sleeved on the outer periphery of the connecting rod 4 and acts as a bearing for the connecting rod 4, ensuring that the rotating connecting rod 4 remains stable when it is driven to rotate by the first driving mechanism 3. The limiting sleeve 20 is snapped into the torso housing 2. The limiting sleeve 20 is fixed to the torso housing 2 by snapping and fixing, ensuring its positional stability.

[0081] To ensure the stability of the connection between the torso housing 2 and the external plush parts of the head cover 1, several clips 17 are also included. One end of each clip 17 is provided with a buckle 18 for engaging with the head cover 1 and / or the torso housing. Specifically, both the torso housing 2 and the head cover 1 have slots for engaging the buckles 18. The other end of each clip 17 is provided with a locking part 19 for securing the external plush parts. The locking part 19 can also limit the distance at which the buckles 18 engage with the slots to prevent them from being completely inserted and unable to be pulled out. When securing the external plush parts, the buckles 18 of the clips 17 are used in conjunction with the slots to secure the plush parts to the torso housing 2 and the head cover 1.

[0082] Example 2

[0083] This utility model also discloses a pet robot, which includes: the connection mechanism in embodiment 1, the connection mechanism including the pet robot's torso shell 2 and head cover 1, and also includes a battery 21 and a PCB board 22.

[0084] The battery 21 is disposed in the torso housing. The bottom of the torso housing 2 is provided with a slot for securing the battery 21. The PCB board 22 is fixed inside the torso housing 2 by fasteners and the like, and is connected to the battery 21, the first drive mechanism 3 and the second drive mechanism 6. It is used to control the operation of the first drive mechanism 3 and the second drive mechanism 6. The battery 21 provides power to the PCB board 22 and the first drive mechanism 3 and the second drive mechanism 6. The microcontroller and its peripheral circuit components are soldered onto the PCB board 22 to form the PCB board 22, which is used to control the operation of the drive mechanism.

[0085] It also includes a microphone 23 and a speaker 24 connected to the PCB board 22. The microphone 23 and the speaker 24 are snapped into the inside of the torso housing 2. The torso housing 2 is provided with sound holes corresponding to the microphone 23 and the speaker 24, respectively.

[0086] Specifically, the microphone 23 is positioned on the shoulder of the torso housing 2, a location that facilitates sound pickup and is less prone to being dropped or bumped.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A connection mechanism for a pet robot, characterized in that, include: The first drive mechanism is located in the torso shell of the pet robot; A connecting rod, the first end of which is connected to the output shaft of the first drive mechanism, and the second end of which extends into the head cover of the pet robot; A protective cover is disposed on the second end of the connecting rod located in the head cover, and a cavity is formed in the protective cover; The second drive mechanism is installed in the cavity, and its output shaft is orthogonal to the output shaft of the first drive mechanism; The first connector is connected to the output shaft of the second drive mechanism, and the first connector is also connected to the head cover of the pet robot; The second connector is symmetrically arranged with the first connector and rotatably connected to the protective cover. The second connector is also connected to the head cover.

2. The connecting mechanism according to claim 1, characterized in that, A support block is provided at the junction of the bottom of the protective cover and the outer wall of the connecting rod. Two first limiting blocks are provided on the torso housing at intervals around the connecting rod. The first limiting blocks are used to abut against and limit the support blocks to restrict the circumferential rotation of the connecting rod.

3. The connecting mechanism according to claim 2, characterized in that, The radial direction of the support block and the center of the connecting rod is perpendicular to the axial direction of the output shaft of the second drive mechanism. The support block is also provided with a limit protrusion, which is used to abut and limit the head cover to the extreme position of downward rotation.

4. The connecting mechanism according to claim 1, characterized in that, Both the first drive mechanism and the second drive mechanism are provided with connecting reinforcement members on their output shafts, the connecting reinforcement members including: Bushing, used to fit and fix the output shaft; The reinforcing part is fixed to the end of the bushing away from the output shaft, and the reinforcing part is provided with a number of mounting holes at intervals around the center of the bushing.

5. The connecting mechanism according to claim 4, characterized in that, The first connector includes: The first connecting plate is used to connect and fix it to the reinforcing part; Several countersunk sleeves are disposed on the side of the first connecting plate away from the connecting reinforcement, for corresponding to the mounting holes; Several reinforcing ribs are connected between adjacent countersunk sleeves. Each reinforcing rib has a connecting hole for connecting with the head cover. The outer periphery of the connecting hole extends outward to form a stepped groove.

6. The connecting mechanism according to claim 5, characterized in that, The second connector includes: The second connecting plate is a circular second connecting plate, and a stop is provided around its circumference. The side of the protective cover is provided with a rotating groove that is consistent with the core of the output shaft of the second drive mechanism, for matching and embedding the second connecting plate. A stop is provided in the rotating groove to limit the rotation range of the second connecting plate. The third connecting plate is disposed perpendicularly to the second connecting plate on the side of the second connecting plate away from the second driving mechanism. The third connecting plate has a connecting hole for connecting with the head cover, and the outer periphery of the connecting hole extends outward to form a stepped groove.

7. The connecting mechanism according to claim 1, characterized in that, It also includes a limiting sleeve, which is sleeved on the outer periphery of the connecting rod and snapped into the torso housing.

8. The connecting mechanism according to claim 1, characterized in that, It also includes several clips, one end of which is provided with a buckle for engaging with the head cover and / or torso shell, and the other end is provided with a snap-fit ​​part for securing the external plush.

9. A pet robot, characterized in that, include: The connecting mechanism as described in any one of claims 1-8; The battery is housed within the body casing; The PCB board is connected to the battery, the first drive mechanism and the second drive mechanism, and is used to control the operation of the first drive mechanism and the second drive mechanism.

10. The pet robot according to claim 9, characterized in that, It also includes a microphone and a speaker connected to the PCB board. The microphone and the speaker are snapped into the inside of the torso housing. The torso housing has sound holes corresponding to the microphone's receiving end and the speaker's sound hole, respectively.

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