Movement of electric toy

Abstract

The utility model provides an electric toy machine core which comprises a shell, a motor and a gear set, the motor and the gear set are installed in the shell, the gear set comprises a transmission tooth set, a variable tooth set, a first output tooth set and a second output tooth set, the transmission tooth set is in driving connection with the motor, and the variable tooth set comprises a first variable tooth, a second variable tooth and a driving tooth which are coaxially connected. The first variable teeth and the second variable teeth are meshed with the same gear of the transmission tooth set, the transmission ratio of the first variable teeth to the gear is larger than that of the second variable teeth to the gear, and the driving teeth and the second variable teeth are fixed and connected with the shell through elastic pieces. A pushing block and a concave cavity which are arranged on the first changing tooth and the second changing tooth respectively are arranged between the first changing tooth and the second changing tooth, the pushing block can move to enter and leave the concave cavity in the rotating process, and the pushing block and the concave cavity are used for being matched with the elastic piece to drive the first changing tooth and the second changing tooth to be separated and reset. The driving teeth can axially move in a reciprocating mode so as to be meshed with the first output tooth set or the second output tooth set.

Description

Technical Field

[0001] The utility model relates to the technical field of toys, and particularly to an electric toy movement. Background Art

[0002] The existing electric toy movement often sets a motor and a gear set in transmission connection to control external components to achieve automatic rotation or movement. The Chinese patent with the application number 202121675185.8 provides an internal operating device for toys. By using gear transmission, the forward and reverse rotation and alternating operation effects of an eccentric wheel can be achieved, making it more convenient for the toy to perform reciprocating movement and alternating movement of two movement forms. However, the above internal operating device for toys cannot only control the eccentric wheel to achieve the effect of alternating operation, and at the same time, there are also problems such as many gear parts, complex connection relationships, and the structure is not concise and compact enough. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an electric toy movement, aiming to achieve the effect of only controlling the eccentric wheel to achieve alternating operation, and at the same time streamline the structure.

[0004] To achieve the foregoing purpose, the utility model provides an electric toy movement, including a housing, a motor and a gear set installed in the housing. The gear set includes a transmission gear set, a variable gear set, a first output gear set and a second output gear set. The transmission gear set is drivingly connected to the motor. The variable gear set includes a first variable gear, a second variable gear and a driving gear coaxially connected. The first variable gear and the second variable gear are respectively meshed with the same gear of the transmission gear set. The transmission ratio of the first variable gear to the gear is greater than the transmission ratio of the second variable gear to the gear. The driving gear is fixed to the second variable gear and is connected to the housing through an elastic member;

[0005] A push block and a concave cavity are respectively arranged between the first variable gear and the second variable gear. The push block can move into and out of the concave cavity during rotation. The push block and the concave cavity are used to cooperate with the elastic member to drive the separation and reset of the first variable gear and the second variable gear, so that the driving gear can axially reciprocate to mesh with the first output gear set or the second output gear set.

[0006] As a preferred solution, first inclined surfaces are arranged on both opposite sides of the push block, and second inclined surfaces are arranged on both cavity walls of the concave cavity opposite to the first inclined surfaces. The first inclined surfaces and the second inclined surfaces are in slidable contact with each other.

[0007] As a preferred solution, the number of the pushing blocks and the cavities is the same, both being two. The two pushing blocks are oppositely arranged on one side surface of the first variable tooth, and the two cavities are oppositely arranged on one side surface of the second variable tooth.

[0008] As a preferred solution, the transmission ratio between the first variable tooth and the gear of the transmission gear set is a first transmission ratio, and the transmission ratio between the second variable tooth and the gear of the transmission gear set is a second transmission ratio. The numerical difference between the first transmission ratio and the second transmission ratio is less than or equal to 0.1.

[0009] As a preferred solution, the transmission gear set includes a first tooth, a second tooth, a third tooth, and a fourth tooth that are sequentially meshed. The first tooth is fixed to the output shaft of the motor, and the fourth tooth meshes with the first variable tooth and the second variable tooth respectively.

[0010] As a preferred solution, the second tooth, the third tooth, and the fourth tooth are all of a double-tooth structure. The second tooth is composed of a fixed crown tooth and a straight tooth. The third tooth is composed of a first straight tooth and a second straight tooth that are rotatably connected. The fourth tooth is composed of a fixed third straight tooth and a fourth straight tooth. The crown tooth meshes with the first tooth, the straight tooth meshes with the first straight tooth, the second straight tooth meshes with the third straight tooth, and the fourth straight tooth meshes with the first variable tooth and the second variable tooth respectively.

[0011] As a preferred solution, the numerical value of the transmission ratio of each meshing gear pair in the transmission gear set is greater than one, and the numerical values of the first transmission ratio and the second transmission ratio are both greater than one.

[0012] As a preferred solution, the number of the first output tooth sets is two. Each first output tooth set includes a transmission tooth and a first output tooth that are meshed. The transmission tooth is separated from or meshed with the driving tooth as the driving tooth moves. The numerical value of the transmission ratio between the transmission tooth and the driving tooth is greater than one, and the numerical value of the transmission ratio between the transmission tooth and the first output tooth is approximately equal to one.

[0013] As a preferred solution, the transmission gear set further includes a fifth tooth that is coaxial with the fourth tooth and is rotatably connected. The fifth tooth is located between the two first output teeth and meshes with each of them respectively.

[0014] As a preferred solution, the number of the second output tooth sets is one. The second output tooth set includes a second output tooth. The second output tooth is separated from or meshed with the driving tooth as the driving tooth moves. The numerical value of the transmission ratio between the second output tooth and the driving tooth is greater than one.

[0015] Therefore, according to the technical means of the present utility model, the effects that the present utility model can obtain are briefly described as follows: The electric toy movement provided by the present utility model is provided with a first variable tooth, a second variable tooth and a driving tooth coaxially connected in a variable tooth group. Since the first variable tooth and the second variable tooth are respectively meshed with the same gear of the transmission tooth group, and the transmission ratio of the first variable tooth to the gear is greater than the transmission ratio of the second variable tooth to the gear, the rotation speed of the first variable tooth is slower than that of the first variable tooth, so that the push block between the first variable tooth and the second variable tooth can move into and out of the concave cavity during rotation, so as to cooperate with the elastic member to realize the separation and reset of the first variable tooth and the second variable tooth, and further enable the driving tooth to axially reciprocate to mesh with the first output tooth group or the second output tooth group, realizing the effect that the electric toy movement only controls the first output tooth group and the second output tooth group to alternately operate. Moreover, the electric toy movement provided by the present utility model uses relatively few gear parts, has low production costs, and has a simple connection relationship, having the advantages of simple and compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the best embodiment of the present utility model.

[0017] Figure 2 is Figure 1 the exploded structural diagram of the electric toy movement in

[0018] Figure 3 is Figure 2 the exploded structural diagram of the variable tooth group in

[0019] Figure 4 is Figure 1 the sectional structural diagram of the push block entering the concave cavity in

[0020] Figure 5 is Figure 4 the structural diagram of the gear group in

[0021] Figure 6 is Figure 1 the sectional structural diagram of the push block leaving the concave cavity in

[0022] Figure 7 is Figure 6 the structural diagram of the gear group in

[0023] In the figure: 1: housing; 11: first housing; 12: second housing; 2: motor; 3: gear set; 31: driving gear set; 311: first gear; 312: second gear; 3121: crown gear; 3122: straight gear; 313: third gear; 3131: first straight gear; 3132: second straight gear; 314: fourth gear; 3141: third straight gear; 3142: fourth straight gear; 315: fifth gear; 32: variable gear set; 321: first variable gear; 322: second variable gear; 323: driving gear; 324: push block; 3241: first inclined surface; 325: concave cavity; 3251: second inclined surface; 33: first output gear set; 331: driving gear; 332: first output gear; 3321: first eccentric post; 34: second output gear set; 341: second output gear; 3411: second eccentric post. Detailed implementation mode

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention. It can be understood that the accompanying drawings are only for reference and description, and are not used to limit the present invention. The connections shown in the drawings are only for clear description and do not limit the connection mode.

[0025] It should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. describe the direction or position relationship shown in the present invention based on the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating that the device or element referred to must have a special direction or position relationship. Therefore, it cannot be understood as a limitation to the present invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. It should be understood that terms such as "first", "second", etc. are only for the convenience of describing the technical solutions of the present invention, rather than indicating that the device or element referred to must have a special order. Therefore, it cannot be understood as a limitation to the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] Please refer to Figures 1 to 7, this embodiment provides an electric toy movement, including a housing 1, a motor 2 installed in the housing 1, and a gear set 3 driven by the motor 2 to rotate. It can be understood that the housing 1 is spliced and synthesized by a first housing 11 and a second housing 12, and both the motor 2 and the gear set 3 are installed between the first housing 11 and the second housing 12.

[0027] Among them, the gear set 3 includes a transmission gear set 31, a variable gear set 32, a first output gear set 33, and a second output gear set 34. In this embodiment, the transmission gear set 31 is drivingly connected to the motor 2 and includes a first gear 311, a second gear 312, a third gear 313, and a fourth gear 314 that are sequentially engaged. Among them, the first gear 311 is fixed to the output shaft of the motor 2, and the fourth gear 314 is respectively engaged with the first variable gear and the second variable gear of the variable gear set 32, so that when the motor 2 starts to rotate, the transmission gear set 31 can drive the variable gear set 32 to rotate simultaneously. In other embodiments, the transmission gear set 31 may also be provided with only one gear, the gear is fixed to the output shaft of the motor 2 and engaged with the variable gear set 32, or the transmission gear set 31 may also be provided with two, three or more than five gears that are sequentially engaged, etc.

[0028] It can be understood that the second gear 312, the third gear 313, and the fourth gear 314 are all of a double gear structure. The second gear 312 is composed of a fixed crown gear 3121 and a straight gear 3122. The third gear 313 is composed of a first straight gear 3131 and a second straight gear 3132 that are rotatably connected. The fourth gear 314 is composed of a fixed third straight gear 3141 and a fourth straight gear 3142. Among them, the crown gear 3121 is engaged with the first gear 311, the straight gear 3122 is engaged with the first straight gear 3131, the second straight gear 3132 is engaged with the third straight gear 3141, and the fourth straight gear 3142 is engaged with the variable gear set 32.

[0029] The numerical values of the transmission ratios of each engaged gear pair in the transmission gear set 31 are all greater than one to form a reduction gear chain, which plays the role of reducing the speed and stabilizing the output. Specifically, the transmission ratio of the crown gear 3121 to the first gear 311 is 12:7, the transmission ratio of the straight gear 3122 to the first straight gear 3131 is 13:5, and the transmission ratio of the second straight gear 3132 to the third straight gear 3141 is 5:2. It can be understood that setting the first straight gear 3131 and the second straight gear 3132 to be rotatably connected can enable the first straight gear 3131 to drive the second straight gear 3132 to rotate in the same direction when the first straight gear 3131 is driven by a driving force, and can also enable the second straight gear 3132 to rotate within the first straight gear 3131 when the second straight gear 3132 is driven by a reverse driving force, playing an anti-reverse role to prevent the situation that the rotation direction of the gear set 3 is different from the rotation direction of the output shaft of the motor 2 and burning out the motor 2.

[0030] In this embodiment, the transmission gear set 31 further includes a fifth gear 315 that is coaxially connected to the fourth gear 314 and is rotatably connected therewith. The fifth gear 315 is located between the two first output gear sets 33 and meshes with each of them, which plays a role in improving the transmission stability. Obviously, in other embodiments, the transmission gear set 31 may not be provided with the fifth gear 315.

[0031] The variable gear set 32 includes a first variable gear 321, a second variable gear 322, and a driving gear 323 that are coaxially connected. The first variable gear 321 and the second variable gear 322 respectively mesh with the second straight gear 3142. The transmission ratio between the first variable gear 321 and the second straight gear 3142 is the first transmission ratio, and the transmission ratio between the second variable gear 322 and the second straight gear 3142 is the second transmission ratio. The values of the first transmission ratio and the second transmission ratio are both greater than one, and the value of the first transmission ratio is greater than the value of the second transmission ratio. The difference between the values of the first transmission ratio and the second transmission ratio is less than or equal to 0.1.

[0032] In this embodiment, the value of the first transmission ratio is 10:3, and the value of the second transmission ratio is 13:4. The above settings make the rotational speed of the first variable gear 321 less than the rotational speed of the second variable gear 322, and the difference in their rotational speeds is not large, so as to provide a relatively long stagnation time for the movement between the first variable gear 321 and the second variable gear 322. Obviously, in other embodiments, the first transmission ratio and the second transmission ratio may also be set to other values greater than one, and the difference between them may also be other values such as 0.05, 0.1, etc.

[0033] The driving gear 323 is fixed to the second variable gear 322 and is connected to the housing 1 through an elastic member (not shown in the figure). A push block 324 and a concave cavity 325 are provided between the first variable gear 321 and the second variable gear 322 and are respectively disposed on the two gears. The push block 324 can move into and out of the concave cavity 325 during rotation. It can be understood that the push block 324 and the concave cavity 325 are used to cooperate with the elastic member to drive the separation and reset of the first variable gear 321 and the second variable gear 322, so that the driving gear 323 can axially reciprocate to mesh with the first output gear set 33 or the second output gear set 34.

[0034] In this embodiment, the number of the pushing blocks 324 and the cavities 325 is the same, both being two. The two pushing blocks 324 are oppositely arranged on one side surface of the first variable tooth 321, and the two cavities 325 are oppositely arranged on one side surface of the second variable tooth 322. Wherein, first inclined surfaces 3241 are arranged on both opposite sides of the pushing block 324, and second inclined surfaces 3251 are arranged on both cavity walls of the cavity 325 opposite to the first inclined surface 3241. The first inclined surface 3241 and the second inclined surface 3251 are in slidable contact with each other. In other embodiments, the number of the pushing blocks 324 may be more or less than the number of the cavities 325, and the pushing blocks 324 may also be arranged on the second variable tooth 322, while the cavities 325 are arranged on the first variable tooth 321.

[0035] The number of the first output tooth groups 33 is two. Each first output tooth group 33 includes a transmission tooth 331 and a first output tooth 332 that are engaged with each other. Wherein, the transmission tooth 331 is separated from or engaged with the driving tooth 323 as the driving tooth 323 moves, and the transmission tooth 331 is also engaged with the fifth tooth 315. It can be understood that the value of the transmission ratio between the transmission tooth 331 and the driving tooth 323 is greater than one, and the value of the transmission ratio between the transmission tooth 331 and the first output tooth 332 is approximately equal to one, so as to further improve the transmission stability. Specifically, the value of the transmission ratio between the transmission tooth 331 and the driving tooth 323 is 33:20, and the transmission ratio between the transmission tooth 331 and the first output tooth 332 is 12:11.

[0036] The number of the second output tooth groups 34 is one. The second output tooth group 34 includes a second output tooth 341. The second output tooth 341 is separated from or engaged with the driving tooth 323 as the driving tooth 323 moves. It can be understood that the value of the transmission ratio between the second output tooth 341 and the driving tooth 323 is greater than one, so as to further improve the transmission stability. Specifically, the value of the transmission ratio between the second output tooth 341 and the driving tooth 323 is 27:10.

[0037] A first eccentric column 3321 is arranged at the end of the first output tooth 332. The first eccentric column 3321 is rotatably connected to the housing 1 and is used for connecting with an external component. A second eccentric column 3411 is arranged at the end of the second output tooth 341. The second eccentric column 3411 is rotatably connected to the housing 1 and is also used for connecting with an external component.

[0038] It should be noted that the working process of the electric toy movement is generally as follows. When the motor 2 starts to rotate, the first variable tooth 321 and the second variable tooth 322 are driven to rotate in the same direction through the first tooth 311, the second tooth 312, the third tooth 313 and the fourth tooth 314 in sequence. Since there is a rotational speed difference between the first variable tooth 321 and the second variable tooth 322, during the relative rotation of the two, the pushing block 324 can move into and out of the cavity 325, and cooperate with the elastic member between the driving tooth 323 and the housing 1, so as to drive the first variable tooth 321 and the second variable tooth 322 to separate and reset reciprocally.

[0039] When the first variable tooth 321 and the second variable tooth 322 are separated, the driving tooth 323 moves with the second variable tooth 322 to engage with the second output tooth 341, and the movement of an external member connected to the second eccentric column 3411 can be controlled. When the first variable tooth 321 and the second variable tooth 322 are reset and fit together, the driving tooth 323 moves reversely with the second variable tooth 322 to engage with the transmission tooth 331, and the movement of an external member connected to the first eccentric column 3321 can be controlled. Thus, during the reciprocating separation and reset movement of the first variable tooth 321 and the second variable tooth 322, the effect of the alternating operation of the output structure in the electric toy movement can be achieved.

[0040] For clarity, certain features described in the individual embodiments of the present utility model can be used in combination in a single embodiment. Moreover, the various features of the present utility model described in a single embodiment can also be used separately or in any suitable form in sub-combinations.

Claims

1. An electric toy movement, comprising a housing, a motor and a gear set installed in the housing, characterized in that, The gear set includes a transmission gear set, a variable gear set, a first output gear set and a second output gear set. The transmission gear set is drivingly connected to the motor. The variable gear set includes a first variable gear, a second variable gear and a driving gear coaxially connected. The first variable gear and the second variable gear are respectively meshed with the same gear of the transmission gear set. The transmission ratio between the first variable gear and the gear is greater than the transmission ratio between the second variable gear and the gear. The driving gear is fixed to the second variable gear and connected to the housing through an elastic member. A push block and a concave cavity are respectively arranged between the first variable gear and the second variable gear. During rotation, the push block can move into and out of the concave cavity. The push block and the concave cavity are used to cooperate with the elastic member to drive the separation and reset of the first variable gear and the second variable gear, so that the driving gear can axially reciprocate to mesh with the first output gear set or the second output gear set.

2. The electric toy movement according to claim 1, wherein, First inclined surfaces are arranged on both opposite sides of the push block, and second inclined surfaces are arranged on both cavity walls of the concave cavity opposite to the first inclined surfaces. The first inclined surfaces and the second inclined surfaces are in slidable contact with each other.

3. The electric toy movement according to claim 2, characterized in that, The number of the push blocks and the concave cavities is the same, both being two. The two push blocks are oppositely arranged on one side surface of the first variable gear, and the two concave cavities are oppositely arranged on one side surface of the second variable gear.

4. The electric toy movement according to claim 1, characterized in that, The transmission ratio between the first variable gear and the gear of the transmission gear set is the first transmission ratio, and the transmission ratio between the second variable gear and the gear of the transmission gear set is the second transmission ratio. The numerical difference between the first transmission ratio and the second transmission ratio is less than or equal to 0.

1.

5. The electric toy movement according to claim 4, characterized in that, The transmission gear set includes a first gear, a second gear, a third gear and a fourth gear that are sequentially meshed. The first gear is fixed to the output shaft of the motor, and the fourth gear is meshed with the first variable gear and the second variable gear respectively.

6. The electric toy movement according to claim 5, wherein The second gear, the third gear and the fourth gear are all of a double gear structure. The second gear is composed of a fixed crown gear and a straight gear. The third gear is composed of a first straight gear and a second straight gear that are rotatably connected. The fourth gear is composed of a fixed third straight gear and a fourth straight gear. The crown gear is meshed with the first gear, the straight gear is meshed with the first straight gear, the second straight gear is meshed with the third straight gear, and the fourth straight gear is meshed with the first variable gear and the second variable gear respectively.

7. The electric toy movement according to claim 6, characterized in that, The numerical value of the transmission ratio of each meshing gear pair in the transmission gear set is greater than one, and the numerical values of the first transmission ratio and the second transmission ratio are both greater than one.

8. The electric toy movement according to claim 5, wherein, The number of the first output gear sets is two. Each first output gear set includes a transmission gear and a first output gear that are meshed. The transmission gear is separated from or meshed with the driving gear as the driving gear moves. The numerical value of the transmission ratio between the transmission gear and the driving gear is greater than one, and the numerical value of the transmission ratio between the transmission gear and the first output gear is approximately equal to one.

9. The electric toy movement according to claim 8, characterized in that, The transmission gear set further includes a fifth gear that is coaxially arranged with the fourth gear and is rotatably connected relative to the fourth gear. The fifth gear is located between the two first output gears and is meshed with each of them respectively.

10. The electric toy movement according to claim 8, wherein, The number of the second output gear set is one. The second output gear set includes a second output gear. The second output gear is separated from or engaged with the driving gear as the driving gear moves. The numerical value of the transmission ratio between the second output gear and the driving gear is greater than one.

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