Toy gearbox safe to use

Abstract

According to the toy gearbox safe to use, the driving gear is arranged to be the combination of the first gear and the second gear, the first gear is connected to the output gear in a transmission mode, the inner gear ring is arranged on the first gear, and the second gear can be connected into the inner gear ring in a matched mode through the gear blocks on the ring body. The cylinder of the second gear is fixedly connected with the eccentric shaft of the output wheel through the rotating shaft, and the ring body of the second gear is provided with the movable supporting hole capable of enabling the ring body to elastically move, so that the ring body of the second gear can be meshed in the inner gear ring and can drive the output wheel to rotate along with the rotation of the first gear in a normal working environment; when the output wheel is overloaded and cannot rotate, the inner gear ring can still rotate on the ring body, and the effects of protecting a power system through slipping, preventing damage and prolonging the service life are achieved. Meanwhile, the toy gearbox has the advantages of being simple and compact in structure, small in appearance size, high in transmission efficiency, accurate in transmission and the like.

Description

Technical Field

[0001] This utility model relates to the field of toy technology, and more particularly to a safe toy tooth box. Background Technology

[0002] A toy gearbox is a type of gearbox used in toys. Traditional toy gearboxes typically lack overload protection measures, which means they cannot protect the mechanical system when overload occurs, resulting in a high failure rate and reduced lifespan. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a safe toy tooth box.

[0004] To achieve the aforementioned objectives, this utility model provides a safe toy gearbox, comprising a housing, a motor, and a transmission assembly. The motor is fixedly engaged within the motor cavity of the housing, and the transmission assembly is rotatably mounted within the gear cavity of the housing. The transmission assembly includes an output wheel rotatably connected to the outside of the housing, a drive gear coaxially connected to the eccentric shaft of the output wheel, and an output gear fixedly connected to the output shaft of the motor. The output wheel extends outward along its axis and has a connecting shaft. The drive gear includes a first gear and a second gear. The first gear is operatively connected to the output gear and has an internal gear ring. The second gear includes a column and a ring. The column is fixedly connected to the eccentric shaft via a rotating shaft. The ring is integrally disposed at one end of the column via multiple connecting blocks. A movable support hole is formed between any two adjacent connecting blocks. Each movable support hole corresponds to a toothed block on the outer wall of the ring that can engage with any tooth groove of the internal gear ring.

[0005] As a preferred embodiment, the transmission assembly further includes a transmission gear, which is a double gear. The larger gear of the double gear meshes with the output gear, and the smaller gear of the double gear meshes with the first gear.

[0006] As a preferred embodiment, the housing includes a first cover and a second cover that can be assembled and fixed. The first cover and the second cover are respectively provided with the motor cavity and the gear cavity. The motor cavity is provided with a rib plate for supporting and fixing the motor, and the gear cavity is provided with a positioning plate for supporting and connecting the transmission assembly.

[0007] As a preferred embodiment, the outer wall of the housing is provided with a first fixing structure at the junction of the motor cavity and the gear cavity, the outer wall of the housing is provided with a second fixing structure at the position corresponding to the motor cavity, and the inner wall of the housing is provided with a third fixing structure at the position corresponding to the gear cavity. The first fixing structure, the second fixing structure and the third fixing structure are used to detachably and fixably connect the first cover and the second cover.

[0008] As a preferred embodiment, the first fixing structure includes a first connecting block and a second connecting block respectively disposed on the first cover and the second cover, and the first connecting block and the second connecting block are fixed by threaded parts; the second fixing structure includes a buckle and a buckle block respectively disposed on the first cover and the second cover, and the buckle and the buckle block can be fastened together; the third fixing structure includes a post and a slot respectively disposed on the first cover and the second cover, and the post and the slot can be inserted and fixed together.

[0009] As a preferred embodiment, the length of the cavity wall constituting the motor cavity in the first cover is less than the length of the cavity wall constituting the motor cavity in the second cover, and the end of the cavity wall constituting the motor cavity in the second cover extends toward the first cover and is provided with a latch, in which the motor is held and fixed.

[0010] Therefore, based on the technical means of this utility model, the effects that this utility model can achieve are briefly described as follows: The safe toy gearbox provided by this utility model uses a combination of a first gear and a second gear as the drive gear. The first gear is connected to the output gear and has an internal gear ring on it. The second gear is connected to the internal gear ring through a toothed block on the ring body. The column of the second gear is fixedly connected to the eccentric shaft of the output wheel through a rotating shaft. The ring body of the second gear has a movable support hole that allows the ring body to move elastically. Therefore, under normal working conditions, the ring body of the second gear can mesh in the internal gear ring and drive the output wheel to rotate with the rotation of the first gear, achieving stable power output. When the output wheel is overloaded and cannot rotate, the internal gear ring can still rotate on the ring body, which plays a role in slipping and protecting the power system, preventing damage, and improving service life. At the same time, the toy gearbox of this utility model also has the advantages of simple and compact structure, small size, high transmission efficiency, and accurate transmission. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0012] Figure 2 for Figure 1 A schematic diagram of the exploded structure of a toy tooth box.

[0013] Figure 3 for Figure 2 A schematic diagram of the structure of the second gear in the middle.

[0014] Figure 4 for Figure 1 A schematic diagram of the internal structure of a toy tooth box.

[0015] In the diagram: 1: Housing; 10: First cover; 20: Second cover; 11: Motor cavity; 111: Rib; 12: Gear cavity; 121: Positioning plate; 13: First fixing structure; 131: First connecting block; 132: Second connecting block; 14: Second fixing structure; 141: Buckle plate; 142: Buckle block; 15: Third fixing structure; 151: Insert post; 152: Slot; 16: Bayonet; 2: Motor; 3: Transmission assembly; 31: Output wheel; 311: Eccentric shaft; 312: Connecting shaft; 32: Drive gear; 321: First gear; 3211: Internal gear ring; 322: Second gear; 3221: Column; 3222: Ring; 3223: Connecting block; 3224: Movable support hole; 3225: Gear block; 33: Output gear; 34: Transmission gear; 35: Rotating shaft. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connections shown in the drawings are only for clear description and do not limit the connection method.

[0017] It should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer" are used to describe the directional or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, not to indicate that the device or element referred to must have a specific directional or positional relationship, and therefore should not be construed as a limitation of the present invention. It should be noted that when one component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. It should be understood that terms such as "first" and "second" are only for the convenience of describing the technical solution of the present invention, and are not to indicate that the device or element referred to must have a specific order, and therefore should not be construed as a limitation of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention.

[0018] Please refer to the following at the same time Figure 1-4 This embodiment provides a safe toy gearbox, including a housing 1, a motor 2, and a transmission assembly 3. The motor 2 and the transmission assembly 3 are fixedly encapsulated as a single unit by the housing 1. The housing 1 includes a first cover 10 and a second cover 20 that can be assembled and fixed. A motor cavity 11 and a gear cavity 12 are adjacently arranged within the first cover 10 and the second cover 20. The motor cavity 11 has a rib plate 111 for supporting and fixing the motor 2, allowing the motor 2 to be fixedly engaged within the motor cavity 11 even with a gap between it and the cavity wall. This arrangement helps dissipate heat from the motor 2. The gear cavity 12 has a positioning plate 121 for supporting and connecting the transmission assembly 3, allowing the transmission assembly 3 to be stably rotated and installed within the gear cavity 12.

[0019] In this embodiment, to facilitate the quick and easy assembly and fixation of the first cover 10 and the second cover 20, and to ensure a sufficiently stable and secure connection between the first cover 10 and the second cover 20, the cover 1 is provided with a first fixing structure 13, a second fixing structure 14, and a third fixing structure 15 for detachably fixing the first cover 10 and the second cover 20. The first fixing structure 13 is disposed on the outer wall of the housing 1 and is correspondingly located at the junction of the motor cavity 11 and the gear cavity 12. The first fixing structure 13 includes a first connecting block 131 and a second connecting block 132 respectively disposed on the first cover 10 and the second cover 20. The first connecting block 131 and the second connecting block 132 are fixed by threaded components. The second fixing structure 14 is disposed on the outer wall of the housing 1 and is located at the external position of the motor cavity 11 and the gear cavity 12. The second fixing structure 14 includes a fastening plate 141 and a fastening block 142 respectively disposed on the first cover 10 and the second cover 20. The fastening plate 141 and the fastening block 142 can be fastened together. The third fixing structure 15 is disposed on the inner wall of the housing 1 and is located at the inner circumference position of the gear cavity 12. The third fixing structure 15 includes a insertion post 151 and a slot 152 respectively disposed on the first cover 10 and the second cover 20. The insertion post 151 and the slot 152 can be inserted together. When the first cover 10 and the second cover 20 need to be assembled and fixed, firstly, press the first cover 10 and the second cover 20 towards each other to make the buckle 141 and the buckle block 142 snap together and fix, and the insert post 151 and the slot 152 insert and fix. Then, fix the first connecting block 131 and the second connecting block 132 with screws or other threaded parts. The operation process is convenient and quick, which helps to improve assembly efficiency. Of course, in other embodiments, the first cover 10 and the second cover 20 can be detachably fixed by other fixing structures or a combination of multiple fixing structures, and the position distribution of each fixing structure can be adjusted adaptively.

[0020] It is understood that the length of the cavity wall forming the motor cavity 11 in the first cover 10 is less than the length of the cavity wall forming the motor cavity 11 in the second cover 20, and the end of the cavity wall forming the motor cavity 11 in the second cover 20 extends towards the first cover 10 and is provided with a latch 16, in which the motor 2 is held and fixed. The above arrangement can increase the heat dissipation area of ​​the motor cavity 11 without the need for additional heat dissipation holes, while keeping the motor 2 firmly fixed in the motor cavity 11. It has the advantages of reasonable structural distribution design and high practicality.

[0021] The transmission assembly 3 includes an output wheel 31 rotatably connected to the outside of the housing 1, a drive gear 32 coaxially connected to the eccentric shaft 311 of the output wheel 31, and an output gear 33 fixedly connected to the output shaft of the motor 2. In this embodiment, the transmission assembly 3 also includes a transmission gear 34, which is a double gear. The larger gear of the double gear meshes with the output gear 33, and the smaller gear meshes with the first gear of the drive gear 32, thereby reducing speed and transmitting power. Of course, in other embodiments, the transmission assembly 3 may also include a transmission gear set composed of other numbers of gears, or the transmission assembly 3 may not have a transmission gear 34, in which case the first gear of the drive gear 32 directly meshes with the output gear 33.

[0022] The output wheel 31 extends outward along its axis and is equipped with a connecting shaft 312. The connecting shaft 312 is connected to the external components of the toy and is used to drive it to swing. The drive gear 32 includes a first gear 321 and a second gear 322. The first gear 321 is connected to the output gear 33 through a transmission gear 34. The first gear 321 has an internal gear ring 3211, which is composed of multiple annularly distributed tooth grooves. The second gear 322 includes a column 3221 and a ring 3222. The column 3221 is fixedly connected to the eccentric shaft 311 through a rotating shaft 35. The ring 3222 is integrally mounted on one end of the column 3221 through multiple connecting blocks 3223. A movable support hole 3224 is formed between any two adjacent connecting blocks 3223. The ring 3222 has tooth blocks 3225 on its outer wall corresponding to each movable support hole 3224, which can cooperate with any tooth groove of the internal gear ring 3211. Under normal operating conditions, the gear 322 is configured such that the toothed block 3225 on the ring 3222 can mesh with the tooth groove of the inner gear ring 3211, allowing the second gear 322 to rotate with the first gear 321 and drive the output wheel 31 to rotate. However, if the output wheel 31 is overloaded and cannot rotate, the ring 3222 remains fixed and cannot rotate with the column 3221. At this time, the toothed block 3225, pushed by the inner gear ring 3211, can move into the movable support hole 3224 and then reset, allowing the inner gear ring 3211 to still rotate on the ring 3222. This serves to prevent slippage, protect the power system, prevent damage, and extend service life.

[0023] In summary, the toy gearbox provided in this embodiment can realize the transmission and termination of power, has overload protection function, and has the advantages of simple and compact structure, small size, high transmission efficiency and accurate transmission, and long service life. It can be applied to a variety of small toys.

[0024] For clarity, certain features described in individual embodiments of the present invention may be used in combination in a single embodiment. Furthermore, various features of the present invention described in individual embodiments may also be used individually or in any suitable form in sub-combinations.

Claims

1. A safe toy teether, comprising a housing, a motor, and a transmission assembly, characterized in that, The motor is fixedly snapped into the motor cavity of the housing, and the transmission assembly is rotatably installed in the gear cavity of the housing. The transmission assembly includes an output wheel rotatably connected to the outside of the housing, a drive gear coaxially connected to the eccentric shaft of the output wheel, and an output gear fixedly connected to the output shaft of the motor. The output wheel extends outward along its axis and has a connecting shaft. The drive gear includes a first gear and a second gear. The first gear is pulsatorically connected to the output gear and has an internal gear ring on it. The second gear includes a column and a ring. The column is fixedly connected to the eccentric shaft through a rotating shaft. The ring is integrally set at one end of the column through multiple connecting blocks. A movable support hole is formed between any two adjacent connecting blocks. The ring has a tooth block on its outer wall corresponding to each movable support hole, which can cooperate with any tooth groove of the internal gear ring.

2. The safe toy toothbrush case as described in claim 1, characterized in that, The transmission assembly also includes a transmission gear, which is a double gear. The larger gear of the double gear meshes with the output gear, and the smaller gear of the double gear meshes with the first gear.

3. The safe toy toothbrush case as described in claim 1, characterized in that, The housing includes a first cover and a second cover that can be assembled and fixed. The first cover and the second cover are respectively provided with the motor cavity and the gear cavity. The motor cavity is provided with a rib plate for supporting and fixing the motor, and the gear cavity is provided with a positioning plate for supporting and connecting the transmission assembly.

4. The safe toy toothbrush case as described in claim 3, characterized in that, The outer wall of the housing is provided with a first fixing structure at the junction of the motor cavity and the gear cavity, the outer wall of the housing is provided with a second fixing structure at the position corresponding to the motor cavity, and the inner wall of the housing is provided with a third fixing structure at the position corresponding to the gear cavity. The first fixing structure, the second fixing structure and the third fixing structure are used to detachably and fixably connect the first cover and the second cover.

5. The safe toy toothbrush case as described in claim 4, characterized in that, The first fixing structure includes a first connecting block and a second connecting block respectively disposed on the first cover and the second cover, and the first connecting block and the second connecting block are fixed by threaded parts; the second fixing structure includes a buckle and a buckle block respectively disposed on the first cover and the second cover, and the buckle and the buckle block can be fastened together; the third fixing structure includes a post and a slot respectively disposed on the first cover and the second cover, and the post and the slot can be inserted together.

6. The safe toy toothbrush case as described in claim 3, characterized in that, The length of the cavity wall forming the motor cavity in the first cover is less than the length of the cavity wall forming the motor cavity in the second cover. The end of the cavity wall forming the motor cavity in the second cover extends toward the first cover and is provided with a latch, in which the motor is held and fixed.

Images