A linkage device and animal toy

Abstract

This utility model relates to the field of toy technology and discloses a linkage device and an animal toy, comprising: a shell assembly having a front end and a rear end opposite to each other along a first direction; left and right front legs, including an integrally formed left front leg and a right front leg, the connection between the left front leg and the right front leg being rotatably connected to the front end via a first shaft; left and right hind legs, including an integrally formed left hind leg and a right hind leg, the connection between the left hind leg and the right hind leg being rotatably connected to the rear end via a second shaft; one end of a connecting rod is hinged to the left front leg and the other end is hinged to the right hind leg, and a circular hole is provided in the middle of the connecting rod; an eccentric wheel is connected to the output end of the drive assembly, the eccentric wheel is rotatably inserted into the circular hole and drives the connecting rod to swing through eccentric rotation, so as to achieve coordinated movements of the left front leg and right hind leg moving forward synchronously and the right front leg and left hind leg moving backward synchronously during crawling, or coordinated movements of the left front leg and right hind leg moving backward synchronously and the right front leg and left hind leg moving forward synchronously during crawling, so as to enhance the fun.

Description

Technical Field

[0001] This utility model relates to the field of toy technology, and in particular to a linkage device and an animal toy. Background Technology

[0002] Animal toys come in a wide variety of types, and reptiles are a common and fun type of toy.

[0003] Existing reptile toys typically have at least two front legs (left and right) and two hind legs (left and right). However, the coordination of the four legs in existing reptile toys is poor, and they cannot well imitate the coordinated movements of a reptile crawling, such as the left front leg and right hind leg moving forward simultaneously, or the right front leg and left hind leg moving backward simultaneously, or the left front leg and right hind leg moving forward simultaneously.

[0004] Therefore, there is an urgent need to provide a linkage device and animal toy that can achieve coordinated movements such as the left front leg and right hind leg moving forward simultaneously while crawling, and the right front leg and left hind leg moving backward simultaneously while crawling, to enhance the fun. Utility Model Content

[0005] Based on this, it is necessary to provide a linkage device and animal toy to address the existing problems, which aims to achieve coordinated movements such as the left front leg and right hind leg moving forward simultaneously while crawling, and the right front leg and left hind leg moving backward simultaneously while crawling, or coordinated movements such as the left front leg and right hind leg moving backward simultaneously while crawling, and the right front leg and left hind leg moving forward simultaneously, in order to enhance the fun.

[0006] The first aspect of this application provides a linkage device, which includes:

[0007] A housing assembly, wherein one end of the housing assembly along a first direction is a front end and the other end is a rear end;

[0008] The left and right front legs include an integrally formed left front leg and a right front leg. The connection between the left front leg and the right front leg forms a first connecting part. The first connecting part is rotatably connected to the front end through a first shaft.

[0009] The left and right hind legs include a left hind leg and a right hind leg that are integrally formed. The connection between the left hind leg and the right hind leg forms a second connecting part. The second connecting part is rotatably connected to the rear end via a second shaft.

[0010] A connecting rod, one end of which is hinged to the left front leg and the other end of which is hinged to the right rear leg, has a circular hole in the middle of the connecting rod, and the axis of the circular hole is parallel to the first shaft and the second shaft respectively.

[0011] A drive assembly is disposed on the housing assembly. An eccentric wheel is connected to the output end of the drive assembly. The eccentric wheel is rotatably inserted into the circular hole. The eccentric wheel is configured to drive the connecting rod to swing motion by eccentric rotation.

[0012] In some embodiments, the eccentric wheel is a circular wheel eccentrically connected to the output end of the drive assembly, and the diameter of the eccentric wheel is smaller than the diameter of the circular hole but larger than the radius of the circular hole.

[0013] In some implementations, the drive component is a motor or a winding gearbox.

[0014] In some embodiments, the housing assembly includes:

[0015] Upper shell;

[0016] The lower housing is fixedly connected to the upper housing, and an installation space is formed between the upper housing and the lower housing. The drive assembly, left and right front legs, left and right rear legs and connecting rods are disposed in the installation space. The second shaft and the first shaft are rotatably connected to the upper housing and / or the lower housing, respectively.

[0017] In some embodiments, the direction from the upper housing to the lower housing is a third direction. One end of the second shaft is an upper rod segment, and the other end is a lower rod segment. The upper housing is provided with a positioning hole groove, and the upper rod segment is oscillatingly inserted into the positioning hole groove. The lower housing is provided with a rectangular strip groove, and the lower rod segment is installed in the rectangular strip groove. The rectangular strip groove is directly opposite the positioning hole groove. The rectangular strip groove extends along a second direction, which is perpendicular to the first direction and the axis of the circular hole.

[0018] In some embodiments, the linkage device further includes:

[0019] A movable plate is disposed in the housing assembly and sandwiched between the drive assembly and the connecting rod;

[0020] The wings, one end of which are hinged to the connecting post of the housing assembly;

[0021] A torsion spring is sleeved on the connecting post, with its first connecting end connected to the movable plate and its second connecting end connected to the wing;

[0022] The movable plate has a transmission hole and a guide hole. The guide hole is a strip-shaped hole extending along the first direction. The first shaft passes through the guide hole. The transmission hole is an oblong hole extending along the second direction. The eccentric wheel passes through the transmission hole and the circular hole in sequence. The eccentric wheel is configured to drive the movable plate to move back and forth in a straight line in the first direction, so as to drive the wings to swing by twisting the torsion spring. The second direction is perpendicular to the axis of the first direction and the circular hole.

[0023] In some embodiments, the linkage device further includes a guide rod that passes through the guide hole, is parallel to the first shaft and is spaced apart from the first shaft in the first direction, and is disposed in the housing assembly or the drive assembly includes the guide rod.

[0024] In some embodiments, the angle between the first connecting end and the second connecting end is 120° to 160°.

[0025] In some embodiments, the movable plate has an abutment portion near the front end, which slides against the left and right front legs.

[0026] A second aspect of this application provides an animal toy that includes the linkage device described in any of the above embodiments.

[0027] The beneficial effects of this utility model are:

[0028] In this invention, the connection between the left front leg and the right front leg of the linkage device forms a first connecting part, which is rotatably connected to the front end via a first shaft; the connection between the left hind leg and the right hind leg forms a second connecting part, which is rotatably connected to the rear end via a second shaft; one end of the connecting rod is hinged to the left front leg, and the other end of the connecting rod is hinged to the right hind leg. The connecting rod, the left front leg, and the right hind leg, together with the housing assembly, form a linkage rod structure that can be linked, enabling coordinated movements such as the left front leg and the right hind leg moving forward synchronously and the right front leg and the left hind leg moving backward synchronously during crawling, or the left front leg and the right hind leg moving backward synchronously and the right front leg and the left hind leg moving forward synchronously during crawling, thus enhancing the fun. In addition, a circular hole is provided in the middle of the connecting rod, and the axis of the circular hole is parallel to the first shaft and the second shaft respectively; the drive assembly is disposed in the housing assembly, and the output end of the drive assembly is connected to an eccentric wheel, which is rotatably inserted into the circular hole. The eccentric wheel is configured to drive the connecting rod to swing through eccentric rotation, thereby providing power through the drive assembly. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0030] Figure 1 One of the perspective views of an animal toy with a linkage device provided for an embodiment of this application;

[0031] Figure 2 A second perspective view of an animal toy with a linkage device provided for an embodiment of this application;

[0032] Figure 3 A third perspective view of an animal toy with a linkage device provided for an embodiment of this application;

[0033] Figure 4 A disassembly diagram of an animal toy provided for an embodiment of this application;

[0034] Figure 5 A schematic diagram of an animal toy with a linkage device, with the lower shell concealed, provided for an embodiment of this application;

[0035] Figure 6 A schematic diagram of a linkage provided for an embodiment of this application;

[0036] Figure 7 A schematic diagram of a driving component provided for an embodiment of this application;

[0037] Figure 8 A three-dimensional schematic diagram of the left and right front legs and left and right hind legs provided for the implementation of this application;

[0038] Figure 9 A schematic diagram illustrating the connection and engagement relationship of the movable plate of the linkage device provided in the embodiments of this application;

[0039] Figure 10 Fourth perspective view of an animal toy with a linkage device provided for an embodiment of this application;

[0040] Figure 11 for Figure 10 A magnified view of a section at point A in the middle;

[0041] Figure 12 This is a schematic diagram of the fit between the eccentric wheel and the round hole (the dashed line indicates the fit between the eccentric wheel and the round hole when rotated to another position);

[0042] Figure 13This is a schematic diagram of the side of the lower shell facing the upper shell.

[0043] Figure label:

[0044] X, first direction; Y, second direction; Z, third direction;

[0045] 1. Housing assembly; 11. Upper housing; 111. Positioning hole groove; 112. Connecting post; 12. Lower housing; 121. Rectangular strip groove;

[0046] 2. Left and right forelegs; 21. Left foreleg; 22. Right foreleg; 23. First connecting part;

[0047] 3. First shaft;

[0048] 4. Left and right hind legs; 41. Left hind leg; 42. Right hind leg; 43. Second connecting part;

[0049] 5. Second shaft; 51. Upper shaft section; 52. Lower shaft section;

[0050] 6. Connecting rod; 61. Round hole;

[0051] 7. Drive assembly; 71. Guide rod;

[0052] 8. Eccentric wheel;

[0053] 9. Movable plate; 91. Transmission hole; 92. Guide hole; 93. Abutment part;

[0054] 10. Wings;

[0055] 100, Torsion spring; 110, First connecting end; 120, Second connecting end. Detailed Implementation

[0056] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0057] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In this utility model, unless otherwise explicitly specified and limited, a feature "above" or "below" the second feature may mean that the feature is in direct contact with the second feature or indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature may mean that the feature is directly above or diagonally above the second feature, or simply indicates that the feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "beneath" the second feature may mean that the feature is directly below or diagonally below the second feature, or simply indicates that the feature is at a lower horizontal level than the second feature.

[0061] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0062] refer to Figures 1-8 and Figure 12 This application provides a linkage device, and also provides an animal toy, which includes the linkage device of any of the above embodiments. The animal toy can be a four-legged reptile or a six-legged reptile, and may also have wings 10.

[0063] Specifically, the linkage device includes a housing assembly 1, left and right front legs 2, left and right rear legs 4, a connecting rod 6, and a drive assembly 7. One end of the housing assembly 1 along the first direction X is the front end, and the other end along the first direction X is the rear end. The left and right front legs 2 include an integrally formed left front leg 21 and a right front leg 22, with a first connecting portion 23 formed at the connection between the left and right front legs 21 and 22. The first connecting portion 23 is rotatably connected to the front end via a first shaft 3. The left and right rear legs 4 include an integrally formed left rear leg 41 and a right rear leg 42, with a second connecting portion 43 formed at the connection between the left and right rear legs 41 and 42. The connecting part 43 is rotatably connected to the rear end via the second shaft 5; one end of the connecting rod 6 is hinged to the left front leg 21, and the other end of the connecting rod 6 is hinged to the right rear leg 42. A circular hole 61 is provided in the middle of the connecting rod 6, and the axis of the circular hole 61 is parallel to the first shaft 3 and the second shaft 5 respectively; the drive assembly 7 is provided on the housing assembly 1, and the output end of the drive assembly 7 is connected to an eccentric wheel 8. The eccentric wheel 8 is rotatably inserted into the circular hole 61, and the eccentric wheel 8 is configured to drive the connecting rod 6 to swing through eccentric rotation.

[0064] Explanatory, Reference Figure 1-4 The animal's head is located at the front end as described throughout the text, and the animal's tail is located at the rear end as described throughout the text.

[0065] In the embodiments of this application, a first connecting part 23 is formed at the connection between the left front leg 21 and the right front leg 22 of the linkage device. The first connecting part 23 is rotatably connected to the front end via a first shaft 3. A second connecting part 43 is formed at the connection between the left rear leg 41 and the right rear leg 42. The second connecting part 43 is rotatably connected to the rear end via a second shaft 5. One end of the connecting rod 6 is hinged to the left front leg 21, and the other end of the connecting rod 6 is hinged to the right rear leg 42. The connecting rod 6, the left front leg 21, and the right rear leg 42, together with the housing assembly 1, form a linkage rod structure that can be linked. This can achieve coordinated movements such as the left front leg 21 and the right rear leg 42 moving forward synchronously and the right front leg 22 and the left rear leg 41 moving backward synchronously during crawling, or coordinated movements such as the left front leg 21 and the right rear leg 42 moving backward synchronously and the right front leg 22 and the left rear leg 41 moving forward synchronously during crawling, to enhance the fun. In addition, a circular hole 61 is provided in the middle of the connecting rod 6, and the axis of the circular hole 61 is parallel to the first shaft 3 and the second shaft 5 respectively; the drive assembly 7 is provided on the housing assembly 1, and the output end of the drive assembly 7 is connected to an eccentric wheel 8. The eccentric wheel 8 is rotatably inserted into the circular hole 61. The eccentric wheel 8 is configured to drive the connecting rod 6 to swing through eccentric rotation, thereby providing power through the drive assembly 7.

[0066] In some implementations, reference Figures 1-8 and Figure 12 The eccentric wheel 8 is a round wheel that is eccentrically connected to the output end of the drive assembly 7. That is, the round wheel is not coaxial with the output end of the drive assembly 7. The diameter of the eccentric wheel 8 is smaller than the diameter of the round hole 61 but larger than the radius of the round hole 61. When the output end of the drive assembly 7 drives the eccentric wheel 8 to rotate, the eccentric wheel 8 cannot keep concentric with the round hole 61, and thus pushes the side wall of the round hole 61, thereby pushing the connecting rod 6 to swing. Figure 12 The radius of the eccentric wheel 8 is R1, the radius of the circular hole 61 is R2, and the distance from the center of the eccentric wheel 8 to the connection position of the output end of the drive assembly 7 is b. Figure 12 This makes it easier to understand the swing of the eccentric wheel 8 driving the connecting rod 6. Figure 12 The solid line represents the first position, and the dashed line represents the movement from the first position to the second position, where the second position is represented.

[0067] In some implementations, the drive component 7 is a motor, and the output end of the motor, i.e., the rotating shaft, drives the eccentric wheel 8 to rotate.

[0068] refer to Figure 1-8 and Figure 12 In some embodiments, the drive component 7 can also be a winding gearbox, which uses the internally wound spring to store energy and releases the potential energy to drive the eccentric wheel 8 to rotate. Existing winding mechanisms can be used for the winding gearbox; no specific limitation is imposed.

[0069] Regarding the implementation of housing component 1, in some embodiments, refer to... Figures 1-8 and Figure 12 The housing assembly 1 includes an upper housing 11 and a lower housing 12. The lower housing 12 is fixedly connected to the upper housing 11, and an installation space is formed between the upper housing 11 and the lower housing 12. The drive assembly 7, left and right front legs 2, left and right rear legs 4, and connecting rod 6 are disposed in the installation space. The second shaft 5 and the first shaft 3 are rotatably connected to the upper housing 11 and / or the lower housing 12, respectively. More specifically, the second shaft 5 can be rotatably connected to both the upper housing 11 and the lower housing 12, and the first shaft 3 can be rotatably connected to both the upper housing 11 and the lower housing 12. Explanatoryly, "rotatably connected" here means that it can rotate, but it can also have a certain degree of shaking or swaying ability.

[0070] refer to Figures 1-8 , Figure 12 and Figure 13 In some embodiments, the direction from the upper housing 11 to the lower housing 12 is the third direction Z. One end of the second shaft 5 is the upper rod segment 51, and the other end of the second shaft 5 is the lower rod segment 52. The upper housing 11 is provided with a positioning hole groove 111, and the upper rod segment 51 is swayably inserted into the positioning hole groove 111. The lower housing 12 is provided with a rectangular strip groove 121, and the lower rod segment 52 is installed in the rectangular strip groove 121. The rectangular strip groove 121 is directly opposite the positioning hole groove 111. The rectangular strip groove 121 extends along the second direction Y, and the second direction Y is perpendicular to the axis of the first direction X and the circular hole 61.

[0071] When the connecting rod 6 drives the left and right rear legs 4 to swing, the second axle 5 provides a swing fulcrum for the swing of the left and right rear legs 4. Similarly, the first axle 3 provides a swing fulcrum for the swing of the left and right front legs 2.

[0072] In addition to leg movements, for some animals with wings 10, it would be even more interesting if the wings 10 could also move. In some implementations, refer to Figures 4-5 and Figures 9-10The linkage device also includes a movable plate 9, wings 10, and a torsion spring 100. The movable plate 9 is disposed on the housing assembly 1 and sandwiched between the drive assembly 7 and the connecting rod 6; one end of the wings 10 is hinged to the connecting post 112 of the housing assembly 1; the torsion spring 100 is sleeved on the connecting post 112, the first connecting end 110 of the torsion spring 100 is connected to the movable plate 9, and the second connecting end 120 of the torsion spring 100 is connected to the wings 10; wherein, the movable plate 9 has a transmission hole 91 and a guide hole 92, the guide hole 92 is a strip-shaped hole extending along the first direction X, the first shaft 3 passes through the guide hole 92, the transmission hole 91 is an oblong hole extending along the second direction Y, the eccentric wheel 8 passes through the transmission hole 91 and the circular hole 61 in sequence, the eccentric wheel 8 is configured to drive the movable plate 9 to reciprocate linearly in the first direction X, so as to drive the wings 10 to swing by torsion spring 100, the second direction Y is perpendicular to the axis of the first direction X and the circular hole 61. When the movable plate 9 moves back and forth in a straight line in the first direction X, it can drive the torsion spring 100 to twist back and forth, and then the torsion spring 100 drives the wings 10 to swing.

[0073] For details, please refer to Figures 1-4 and Figure 9 One end of the wing 10 is hinged to the connecting post 112 of the shell assembly 1. The wing 10 can rotate around the connecting post 112. The second connecting end 120 of the torsion spring 100 is connected to the wing 10, and the direction of the second connecting end 120 torsion is consistent with the direction of the rotation of the wing 10. Thus, when the second connecting end 120 torsion, it can push the wing 10 to swing.

[0074] To better limit the reciprocating linear motion of the movable plate 9 in the first direction X, in some embodiments, reference is made to... Figures 1-5 and Figure 9 The linkage device also includes a guide rod 71, which passes through the guide hole 92. The guide rod 71 is parallel to the first shaft 3 and spaced apart from the first shaft 3 in the first direction X. The guide rod 71 is disposed in the housing assembly 1 or the drive assembly 7 includes the guide rod 71. Both the guide rod 71 and the first shaft 3 pass through the guide hole 92, thereby restricting the guide hole 92 to reciprocate linear motion in the first direction X. In embodiments where the drive assembly 7 includes the guide rod 71, when the drive assembly 7 is a winding gearbox, it can be the rotation coupling of the winding knob of the winding gearbox, which can use existing technology and will not be described in detail.

[0075] In some embodiments, the angle between the first connecting end 110 and the second connecting end 120 is sufficient to allow the wing 10 to swing, and there is no specific limitation.

[0076] refer to Figure 4 and Figure 9The angle between the first connecting end 110 and the second connecting end 120 is 120° to 160°, specifically 120°, 138°, 150°, or 160°. In practice, it has been found that setting the angle within this range allows the torsion spring 100 to better provide torque to drive the wing 10 to swing and close, improving the overall coordination of the wing's movement. For example, if the angle between the first connecting end 110 and the second connecting end 120 is less than 90°, the wing 10 will not be able to close completely; if the angle is set too large, such as 270°, the wing 10 will not be able to fully unfold.

[0077] refer to Figure 4 , Figures 9-11 In some embodiments, the movable plate 9 is provided with an abutment 93 at one end near the front end. The abutment 93 slides against the left and right front legs 2, which can further limit the position of the movable plate 9, so that the movable plate 9 mainly moves back and forth in a straight line in the first direction X, reducing the movement in the direction from the upper shell 11 to the lower shell 12.

[0078] Finally, it should be noted that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A linkage characterized by, include: The housing assembly (1) has a front end and a rear end along a first direction (X); The left and right front legs (2) include an integrally formed left front leg (21) and right front leg (22). The connection between the left front leg (21) and the right front leg (22) forms a first connecting part (23). The first connecting part (23) is rotatably connected to the front end through a first shaft (3). The left and right hind legs (4) include an integrally formed left hind leg (41) and right hind leg (42). The connection between the left hind leg (41) and the right hind leg (42) forms a second connecting part (43). The second connecting part (43) is rotatably connected to the rear end via a second shaft (5). The connecting rod (6) has one end hinged to the left front leg (21) and the other end hinged to the right rear leg (42). A circular hole (61) is provided in the middle of the connecting rod (6). The axis of the circular hole (61) is parallel to the first shaft (3) and the second shaft (5) respectively. A drive assembly (7) is disposed on the housing assembly (1). An eccentric wheel (8) is connected to the output end of the drive assembly (7). The eccentric wheel (8) is rotatably inserted into the circular hole (61). The eccentric wheel (8) is configured to drive the connecting rod (6) to swing through eccentric rotation.

2. The linkage of claim 1, wherein The eccentric wheel (8) is a circular wheel that is eccentrically connected to the output end of the drive assembly (7). The diameter of the eccentric wheel (8) is smaller than the diameter of the circular hole (61) and larger than the radius of the circular hole (61).

3. The linkage of claim 1, wherein, The drive component (7) is a motor or a winding gearbox.

4. The linkage of claim 1, wherein, The housing assembly (1) includes: Upper shell (11); The lower housing (12) is fixedly connected to the upper housing (11), and an installation space is formed between the upper housing (11) and the lower housing (12). The drive assembly (7), left and right front legs (2), left and right rear legs (4) and connecting rod (6) are disposed in the installation space. The second shaft (5) and the first shaft (3) are rotatably connected to the upper housing (11) and / or the lower housing (12) respectively.

5. The linkage of claim 4, wherein, The direction from the upper housing (11) to the lower housing (12) is the third direction (Z). One end of the second shaft (5) is the upper rod segment (51), and the other end is the lower rod segment (52). The upper housing (11) is provided with a positioning hole groove (111). The upper rod segment (51) is swayably inserted into the positioning hole groove (111). The lower housing (12) is provided with a rectangular strip groove (121). The lower rod segment (52) is installed in the rectangular strip groove (121). The rectangular strip groove (121) is directly opposite the positioning hole groove (111). The rectangular strip groove (121) extends along the second direction (Y). The second direction (Y) is perpendicular to the first direction (X) and the axis of the circular hole (61).

6. The linkage device according to any one of claims 1-5, characterized in that, Also includes: The movable plate (9) is disposed on the housing assembly (1) and sandwiched between the drive assembly (7) and the connecting rod (6); The wing (10) has one end hinged to the connecting post (112) of the housing assembly (1); A torsion spring (100) is sleeved on the connecting post (112). The first connecting end (110) of the torsion spring (100) is connected to the movable plate (9), and the second connecting end (120) of the torsion spring (100) is connected to the wing (10). The movable plate (9) has a transmission hole (91) and a guide hole (92). The guide hole (92) is a strip-shaped hole extending along the first direction (X). The first shaft (3) passes through the guide hole (92). The transmission hole (91) is an oblong hole extending along the second direction (Y). The eccentric wheel (8) passes through the transmission hole (91) and the circular hole (61) in sequence. The eccentric wheel (8) is configured to drive the movable plate (9) to move back and forth in a straight line in the first direction (X) so as to drive the wing (10) to swing by twisting the torsion spring (100). The second direction (Y) is perpendicular to the axis of the first direction (X) and the circular hole (61).

7. The linkage of claim 6, wherein, It also includes a guide rod (71) that passes through the guide hole (92), the guide rod (71) is parallel to the first shaft (3) and is spaced apart from the first shaft (3) in the first direction (X), and the guide rod (71) is disposed in the housing assembly (1) or the drive assembly (7) includes the guide rod (71).

8. The linkage of claim 6, wherein, The angle between the first connecting end (110) and the second connecting end (120) is 120°~160°.

9. The linkage of claim 6 wherein, The movable plate (9) has an abutment (93) at one end near the front end, and the abutment (93) slides against the left and right front legs (2).

10. An animal toy characterized in that, The linkage device includes any one of claims 1-9.

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