Toy lifting power device

Abstract

The utility model provides a toy lifting power device which comprises a shell, a motor, a variable speed transmission set, a driving wheel and a follower wheel, the motor and the variable speed transmission set are installed inside the shell, the driving wheel and the follower wheel are installed outside the shell, and the variable speed transmission set is in driving connection with the motor and is driven by the motor to rotate; the driving wheel is in transmission connection with the variable-speed transmission set and is driven by the variable-speed transmission set to rotate, the wheel surface of a wheel disc of the driving wheel comprises a cambered surface part and a tooth surface part which are connected end to end, and a first tooth section is arranged in the tooth surface part; a special-shaped gear and an eccentric block are arranged on the two opposite sides of the follower wheel in a deviating mode, the special-shaped gear comprises two oppositely-arranged locking blocks and two second tooth sections located between the two locking blocks, and the locking blocks are provided with cambered surfaces matched and attached to the cambered surface portions. And the second tooth section is connected with the first tooth section in an engaged manner, so that the follower wheel can be driven by the driving wheel to continuously rotate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a toy technical field, especially a toy lifting power device. BACKGROUND

[0002] The electric toy of action type needs power device to realize reciprocating action of the toy, for example, the duck toy disclosed in the publication number CN206138735U drives the self-rotating lifting output shaft through the driving device, and realizes the whole upward movement by the self-rotating lifting output shaft axial movement downward. The lifting principle of the self-rotating lifting output shaft is that gear eleven is arranged on the upper end, the outer circumferential surface of the eccentric cam can intermittently press on the upper surface of gear eleven during continuous rotation, so that the self-rotating lifting output shaft can be forced to move axially downward. However, the structure of eccentric cam and gear eleven is prone to uneven force, which causes the body of the toy to be inclined during lifting, affects the appearance of the toy, and reduces the game and viewing effect. SUMMARY

[0003] The utility model discloses at least solve one of the prior art technical problems, and for this, the utility model provides a toy lifting power device.

[0004] In order to achieve the foregoing purpose, the utility model provides a toy lifting power device, including the casing, motor, variable speed transmission group, drive wheel and follower, the inside installation of casing has motor and variable speed transmission group and its outside installation has drive wheel and follower, variable speed transmission group is connected with motor drive and is driven to rotate by it;The drive wheel is connected with the variable speed transmission group transmission and is driven to rotate by it, the wheel disc wheel surface of drive wheel includes the arc surface part and the tooth surface part connected in head and tail, the first tooth section is equipped in the tooth surface part;The opposite sides of follower are provided with profile gear and eccentric block, the profile gear includes two locking blocks and two second tooth sections located between two locking blocks, the arc surface that is matched with the arc surface part is equipped on the locking block, the second tooth section can be engagedly connected with the first tooth section, so that follower can be driven to rotate continuously by drive wheel.

[0005] As a preferred scheme, the eccentric block is arranged at the edge of the follower corresponding to one of the locking blocks, and the eccentric block is movably inserted into the long guide hole of the external toy structure to drive the external toy structure to move and stretch out and retract.

[0006] As a preferred solution, the axis line of the driving wheel and the follow-up wheel is arranged in parallel to the central axis of the shell, when the locking block corresponding to the eccentric block is attached to the curved surface, the eccentric block is at the highest point of the axis line, and when the other locking block is attached to the curved surface, the eccentric block is at the lowest point of the axis line.

[0007] As a preferred solution, the dedendum circle diameter of the first tooth section is smaller than the diameter of the curved surface, and the addendum circle diameter of the first tooth section is larger than the diameter of the curved surface.

[0008] As a preferred solution, the variable speed transmission group comprises first, second, third, fourth, fifth and sixth variable speed gears which are sequentially connected in meshing, the first variable speed gear is fixed on the rotating shaft of the motor, the fifth and sixth variable speed gears are installed outside the shell through a support frame, and the sixth variable speed gear is connected in meshing with the driving wheel.

[0009] As a preferred solution, the third variable speed gear has a clutch gear structure, which is an inner gear ring and an elastic clamping block arranged between two gears of the third variable speed gear, or is a meshing tooth surface arranged between the two gears of the third variable speed gear.

[0010] As a preferred solution, a switching tooth group is further installed inside the shell, the switching tooth group comprises a double-layer gear, first and second transmission gears which are respectively meshed on both sides of the double-layer gear, and a switching gear which is fixed in a circumferential direction with the fourth variable speed gear, the first and second transmission gears are each provided with an eccentric shaft which protrudes rotatably from the shell, and the shaft rod of the switching gear is in abutment with and controlled by the bottom surface of the disc of the driving wheel to move sequentially and circularly to a position where the switching gear is misaligned and idles, a position where the switching gear is meshed with the double-layer gear, and a position where the switching gear is meshed with the first transmission gear through an elastic member.

[0011] As a preferred solution, the bottom surface of the disc of the driving wheel is provided with three receiving surfaces in a circumferential direction, the receiving surfaces are arranged in a descending order of height, and any two adjacent receiving surfaces are connected through a transition slope.

[0012] As a preferred solution, a through hole is arranged on the fourth variable speed gear in a direction of the axis, at least part of the through hole is a multi-prism structure, and the switching gear is movably fixed in a circumferential direction in the through hole.

[0013] As a preferred solution, one end of the shaft rod is movably inserted into a mounting groove of the shell through the elastic member, and the other end of the shaft rod is in abutment with the receiving surface through the through hole.

[0014] Therefore, according to the technical means of the utility model, the utility model can obtain the effects briefly described as follows: the toy lifting power device provided by the utility model can be connected with external toy structures (toy shells or lifting rods and the like) to realize lifting through the matching structure of the driving wheel and the follower wheel, specifically, the arc surface part and the tooth surface part connected at the head and tail are arranged on the disc wheel surface of the driving wheel, meanwhile, the special-shaped gear and the eccentric block are arranged on the opposite sides of the follower wheel, the special-shaped gear can be meshed with the first tooth segment of the tooth surface part through the second tooth segment and is driven to rotate by the first tooth segment, the special-shaped gear can also be matched and attached with the arc surface part through the locking block to realize the locking positioning of the special-shaped gear, and the eccentric block can be movably inserted into the long guide hole of the external toy structure, the external toy structure can be moved to realize the lifting action in the process of continuous rotation of the eccentric block. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the preferred embodiment of the utility model.

[0016] Figure 2 It is Figure 1 It is an exploded structural schematic view of the device.

[0017] Figure 3 It is Figure 1 It is a structural schematic view of the device after removing the shell.

[0018] Figure 4 It is Figure 1 It is a sectional view schematic view when the shaft rod of the switching gear is in contact with the highest receiving surface of the driving wheel.

[0019] Figure 5 It is Figure 4 It is a perspective structural schematic view of the driving wheel and the follower wheel.

[0020] Figure 6 It is Figure 1 It is a sectional view schematic view when the shaft rod of the switching gear is in contact with the second highest receiving surface of the driving wheel.

[0021] Figure 7 It is Figure 6 It is a perspective structural schematic view of the driving wheel and the follower wheel.

[0022] Figure 8 It is Figure 1 It is a sectional view schematic view when the shaft rod of the switching gear is in contact with the lowest receiving surface of the driving wheel.

[0023] Figure 9 For Figure 8 Perspective structural schematic view of middle driving wheel and follow-up wheel.

[0024] In the figure: 1: housing; 11: first housing; 111: connecting column; 112: protruding hole; 12: second housing; 121: mounting groove; 122: opening; 13: support frame; 2: motor; 3: variable speed transmission group; 31: first variable speed tooth; 32: second variable speed tooth; 33: third variable speed tooth; 331: gear ring; 332: elastic clamping block; 34: fourth variable speed tooth; 341: hole; 35: fifth variable speed tooth; 36: sixth variable speed tooth; 4: driving wheel; 41: cambered surface part; 42: tooth surface part; 421: first tooth section; 43: receiving surface; 5: follow-up wheel; 51: special-shaped gear; 511: locking block; 512: second tooth section; 513: cambered surface; 52: eccentric block; 6: switching tooth group; 61: double-layer gear; 62: first transmission wheel; 63: second transmission wheel; 64: switching gear; 641: shaft rod; 60: eccentric shaft. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. It can be understood that the drawings are provided for reference and illustration only, and are not used to limit the present application. The connections shown in the drawings are only for clear description, and do not limit the connection mode.

[0026] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like are used herein to describe the orientation or position relationship of the present application based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating that the devices or elements referred to must have a special orientation or position relationship, and therefore cannot be understood as limiting the present application. It should be noted that when one piece is considered to be "connected" to another piece, it can be directly connected to the other piece or there can be a middle piece. It should be understood that the terms "first", "second" and the like are only for the convenience of describing the technical solutions of the present application, and are not intended to indicate that the devices or elements referred to must have a special order, and therefore cannot be understood as limiting the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application.

[0027] Please refer to Figures 1-9 The present embodiment provides a toy lifting power device, comprising a shell 1, a motor 2, a variable speed transmission group 3, a drive wheel 4, a follow-up wheel 5 and a switching tooth group 6, wherein the inside of the shell 1 is provided with the motor 2, the variable speed transmission group 3 and the switching tooth group 6, and the outside of the shell 1 is provided with the drive wheel 4 and the follow-up wheel 5. It can be understood that the shell 1 comprises a first shell 11 and a second shell 12 which are fixed through a buckle structure, so as to facilitate the assembly of the components of the device into one body. Of course, in other embodiments, the device can not be provided with the switching tooth group 6, and the device can only realize the toy lifting function through the transmission structure of the drive wheel 4 and the follow-up wheel 5. The first shell 11 and the second shell 12 can be fixed by other common structures, such as threaded fastening structure, plug-in fixing structure, etc.

[0028] Multiple connecting posts 111 protrude outward from the outer wall of the first housing 11 for rotatably fixing the drive wheel 4, follower wheel 5, and some gears of the transmission group 3. It should be noted that, to make the structure of the device more compact and the spatial distribution more reasonable, the fifth and sixth gears of the transmission group 3 are mounted on the outside of the housing 1 via a support frame 13. The support frame 13 is fixedly mounted on the connecting posts 111 corresponding to the fifth gear, the sixth gear, and the drive wheel 4 via threaded parts or pins. The first housing 11 also has an extension hole 112, allowing the fourth gear of the transmission group 3 to partially rotatably protrude from the first housing 11 through the extension hole 112, facilitating the engagement of the fourth gear with the fifth gear. The inner wall of the second housing 12 has a mounting groove 121 opposite the protrusion hole 112 for moving and mounting the shaft of the switching gear in the switching gear assembly 6. At the same time, an elastic element (such as a spring, not shown in the figure) abuts against the switching gear, so that the shaft can elastically move and return to its original position under the elastic force of the elastic element. The inner wall of the second housing 12 also has two opposing openings 122, so that the eccentric shafts of the first transmission wheel and the second transmission wheel in the switching gear assembly 6 can extend and be rotatably connected to the housing 1, so that the eccentric shafts can be driven to connect with an external toy structure (such as the leg parts of a toy) to drive its swing.

[0029] The transmission assembly 3 is driven and connected to the motor 2. In this embodiment, the transmission assembly 3 includes a first gear 31, a second gear 32, a third gear 33, a fourth gear 34, a fifth gear 35, and a sixth gear 36 that are sequentially meshed. The first gear 31 is fixed on the shaft of the motor 2. The fifth gear 35 and the sixth gear 36 are mounted on the outside of the housing 1 via a support frame 13, and the sixth gear 36 is meshed with the drive wheel 4. When the motor 2 starts to rotate, the multi-stage speed change of the transmission assembly 3 reduces the speed of the drive wheel 4 and increases the torque, ensuring that the drive wheel 4 can stably drive the follower wheel 5 to rotate and lift the toy. It can be understood that the third gear 33 has a clutch gear structure to ensure the working safety of the motor 2 and prevent the motor 2 from burning out due to jamming. The clutch gear structure consists of an internal gear ring 331 and an elastic block 332 separately disposed between the two gears of the third gear 33. That is, the two gears of the third gear 33 are detachably rotatably connected via the internal gear ring 331 and the elastic block 332. Since this clutch gear structure is common in the art and its working principle has been disclosed, it will not be described in detail here. Of course, in other embodiments, the gear structure of the transmission group 3 can be adjusted according to requirements such as load and housing 1 size, for example, by increasing or decreasing the number and position of gears. At the same time, other suitable transmission ratios can be designed to stabilize the lifting speed and rhythm. The clutch gear structure can also be configured as other structures such as meshing tooth surfaces separately disposed between the two gears of the third gear 33.

[0030] It should be noted that the fourth gear 34 has a through hole 341 extending along the axis. At least part of the hole 341 is a polygonal prism structure and a switching gear of the switching gear group 6 is movably fixed in the circumferential direction therein, so that the switching gear can rotate continuously with the rotation of the fourth gear 34.

[0031] The drive wheel 4 is connected to and driven by the transmission group 3. It can be understood that the drive wheel 4 has an external gear ring that meshes with the sixth transmission gear 36. The drive wheel 4 also has a disc, the disc surface of which includes an arc-shaped portion 41 and a toothed portion 42 connected end-to-end. The toothed portion 42 contains a first tooth segment 421. It should be noted that the root circle diameter of the first tooth segment 421 is smaller than the diameter of the arc-shaped portion 41, and the tip circle diameter of the first tooth segment 421 is larger than the diameter of the arc-shaped portion 41. In this embodiment, the first tooth segment 421 adopts a wide-tooth structure with a large tooth surface. Through the above configuration, the first tooth segment 421 can maintain meshing with the second tooth segment on the follower wheel 5 during continuous rotation, thereby driving the follower wheel 5 to rotate continuously. Simultaneously, the wide-tooth structure increases the meshing area between the first tooth segment 421 and the second tooth segment, making the transmission between the drive wheel 4 and the follower wheel 5 more stable and less prone to tooth skipping or other issues affecting the normal operation of the device. Of course, in other embodiments, the first tooth segment 421 may adopt other more suitable tooth structures.

[0032] In this embodiment, since the device also includes a switching gear set 6, the bottom surface of the drive wheel 4 has three bearing surfaces 43 with progressively decreasing heights along its circumference. Any two adjacent bearing surfaces 43 are connected by a transition slope. During the continuous rotation of the drive wheel 4, any bearing surface 43 can sequentially abut against the shaft of the switching gear in the switching gear set 6, pushing the shaft to move and change the relative position of the switching gear within the housing 1. This allows the switching gear to cyclically move under the elastic force of the elastic element and the thrust of the drive wheel 4. In other embodiments, if the device does not include the switching gear set 6, the drive wheel 4 will not have corresponding bearing surfaces 43.

[0033] The follower wheel 5 has a shaped gear 51 and an eccentric block 52 arranged opposite to each other on its two sides. The shaped gear 51 includes two locking blocks 511 arranged opposite to each other and two second tooth segments 512 located between the two locking blocks 511. The locking blocks 511 have an arc surface 513 that matches and fits against the arc surface 41, allowing the locking blocks 511 to be connected to the arc surface 41 through the arc surface 513 (e.g., ...). Figure 7 and Figure 9 As shown), this achieves the purpose of locking and positioning, preventing the follower wheel 5 from rotating randomly due to external forces. It ensures that once the follower wheel 5 has rotated to a certain position under control, it cannot be disturbed from rotating further, thus ensuring the stability of the toy's lifting and lowering mode and improving its usability. The second tooth segment 512 is meshably connected to the first tooth segment 421 (as shown). Figure 5As shown in the diagram, the follower wheel 5 can be continuously rotated by the drive wheel 4. It can be understood that the eccentric block 52, corresponding to one of the locking blocks 511, is located on the edge of the follower wheel 5. The eccentric block 52 is movably inserted into the long guide hole of the external toy structure (such as a toy shell or telescopic rod), for rotating to drive the external toy structure to move and extend. During continuous rotation, the eccentric block 52 can move within the long guide hole to drive the external toy structure to perform stable extension and retraction, ensuring uniform lifting and lowering strokes and preventing the toy from tilting during lifting and lowering.

[0034] It should be noted that the axis connecting the drive wheel 4 and the follower wheel 5 is parallel to the central axis of the housing 1. When the locking block 511 corresponding to the eccentric block 52 is attached to the arc-shaped surface 41, the eccentric block 52 is at the highest point of the axis connection (e.g., ...). Figure 7 and Figure 9 As shown, when another locking block 511 is attached to the curved surface 41, the eccentric block 52 is at the lowest point of the axis connecting the axes. During the rotation of the drive wheel 4, the first tooth segment 421 and the second tooth segment 512 mesh, driving the follower wheel 5 to rotate. When the locking block 511 is locked and positioned with the curved surface 41, the eccentric block 52 rotates to the highest point, causing the external toy structure to retract. As the drive wheel 4 rotates, the first tooth segment 421 meshes with the other second tooth segment 512, driving the follower wheel 5 to rotate again. When the other locking block 511 is locked and positioned with the curved surface 41, the eccentric block 52 rotates to the lowest point, causing the external toy structure to extend. The above two states can alternate with the continuous rotation of the drive wheel 4, thereby realizing the lifting and lowering drive function of the device.

[0035] The switching gear assembly 6 includes a double-layer gear 61, a first transmission wheel 62 and a second transmission wheel 63 meshing on both sides of the double-layer gear 61, and a switching gear 64 circumferentially fixed to the fourth speed-changing gear 34. To make the structure within the housing 1 more compact and rational, the double-layer gear 61 is coaxially and rotatably connected to the third speed-changing gear 33. Both the first transmission wheel 62 and the second transmission wheel 63 are equipped with eccentric shafts 60, which rotatably protrude from the housing 1 through the opening 122, for driving connection with other toy components such as the foot component, thus realizing the toy's swinging function. The shaft 641 of the switching gear 64 abuts against the bearing surface 43 of the drive wheel 4 through an elastic element. Specifically, one end of the shaft 641 is movably inserted into the mounting groove 121 through the elastic element, and the other end of the shaft 641 can pass through the hole 341 and abut against either bearing surface 43. As the drive wheel 4 rotates continuously, the shaft 641 can contact the bearing surfaces 43 at different heights. Under the pushing control of the different bearing surfaces 43, it can sequentially move to the position where the switching gear 64 is off-center, the position where it meshes with the double-layer gear 61, and the position where it meshes with the first transmission wheel 62. Figure 4 and Figure 5As shown, when the shaft 641 moves to the position where the switching gear 64 is offset from its idle position, the first tooth segment 421 rotates to mesh with the second tooth segment 512 to drive the follower wheel 5 to rotate for telescopic control. Figure 6 and Figure 7 As shown, when the shaft 641 moves to the position where the switching gear 64 meshes with the double-layer gear 61, the arc-shaped surface 41 rotates to engage with and lock against the locking block 511. The double-layer gear 61 then rotates in a controlled manner, driving the first transmission wheel 62 and the second transmission wheel 63 to rotate in opposite (or forward) directions. Figure 8 and Figure 9 As shown, when the shaft 641 moves to the position where the switching gear 64 meshes with the first transmission wheel 62, the arc-shaped surface 41 remains in contact with the locking block 511 and locked. The first transmission wheel 62 is controlled to rotate in the forward (or reverse) direction and drives the second transmission wheel 63 to rotate in the forward (or reverse) direction at the same time through the double-layer gear 61.

[0036] In summary, as the motor 2 controls the drive wheel 4 to rotate continuously through the speed transmission group 3, it can alternately achieve lifting and swinging control through the follower wheel 5 and the switching gear group 6, realizing an interesting linkage effect, which helps to improve the user experience of the device and makes it more fun.

[0037] 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 toy lift power means characterized by, The application relates to a toy vehicle, which comprises a shell, a motor, a variable-speed transmission group, a driving wheel and a following wheel, the inside of the shell is provided with the motor and the variable-speed transmission group, and the outside of the shell is provided with the driving wheel and the following wheel, the variable-speed transmission group is drivingly connected with the motor and rotates under the driving of the motor; the driving wheel is drivingly connected with the variable-speed transmission group and rotates under the driving of the variable-speed transmission group, the wheel disc surface of the driving wheel comprises a first tooth section and a tooth surface section which are connected in a head-to-tail mode, the tooth surface section is internally provided with a first tooth section; the opposite sides of the following wheel are provided with a special-shaped gear and an eccentric block, the special-shaped gear comprises two locking blocks which are oppositely arranged and two second tooth sections which are arranged between the two locking blocks, the locking blocks are provided with arc surfaces which are matched with the arc surface section, and the second tooth sections are connected with the first tooth section in a meshing mode, so that the following wheel can be continuously rotated under the driving of the driving wheel.

2. A toy lift power means as claimed in claim 1, wherein, The eccentric block corresponding to one of the locking blocks is arranged at the edge of the following wheel, and the eccentric block is movably inserted into a long guide hole of an external toy structure, so as to rotate and drive the external toy structure to move and stretch.

3. A toy lift power means as claimed in claim 2, wherein, The connecting line of the shaft centers of the driving wheel and the following wheel is arranged in parallel with the central axis of the shell, when the locking block corresponding to the eccentric block is connected with the arc surface section, the eccentric block is at the highest point of the connecting line of the shaft centers, and when the other locking block is connected with the arc surface section, the eccentric block is at the lowest point of the connecting line of the shaft centers.

4. The toy lift power means of claim 1, wherein The tooth root circle diameter of the first tooth section is smaller than the diameter of the arc surface section, and the tooth top circle diameter of the first tooth section is larger than the diameter of the arc surface section.

5. The toy lift power means of claim 1, wherein The variable-speed transmission group comprises a first variable-speed gear, a second variable-speed gear, a third variable-speed gear, a fourth variable-speed gear, a fifth variable-speed gear and a sixth variable-speed gear which are sequentially and meshingly connected, the first variable-speed gear is fixed on the rotating shaft of the motor, the fifth variable-speed gear and the sixth variable-speed gear are arranged outside the shell through a supporting frame, and the sixth variable-speed gear is meshingly connected with the driving wheel.

6. A toy lift power means as claimed in claim 5, wherein, The third variable-speed gear has a clutch gear structure, the clutch gear structure is an inner gear ring and an elastic clamping block which are separately arranged between two gears of the third variable-speed gear, or is a meshing tooth surface which is separately arranged between the two gears of the third variable-speed gear.

7. The toy lift power means of claim 5, wherein A switching gear group is further arranged inside the shell, the switching gear group comprises a double-layer gear, a first transmission wheel and a second transmission wheel which are meshingly arranged on the two sides of the double-layer gear respectively, and a switching gear which is fixed in the circumferential direction of the fourth variable-speed gear, the eccentric shafts of the first transmission wheel and the second transmission wheel are rotatably protruded on the shell, the shaft rod of the switching gear is in abutment with the bottom surface of the wheel disc of the driving wheel through an elastic member and is controlled by the bottom surface of the wheel disc to sequentially and circularly move to a position where the switching gear is misaligned and idles, a position where the switching gear is meshed with the double-layer gear, and a position where the switching gear is meshed with the first transmission wheel.

8. A toy lift power means as claimed in claim 7, wherein, The bottom surface of the wheel disc of the driving wheel is provided with three supporting surfaces which are sequentially and circumferentially arranged in a descending mode, and any two adjacent supporting surfaces are connected through a transition inclined surface.

9. A toy lift power means as claimed in claim 8, wherein, The fourth variable speed gear is provided with a through hole along the axis, at least part of the hole is a polygonal structure and a switching gear is movably fixed in the hole.

10. A toy lift power means as claimed in claim 9, wherein, One end of the shaft is movably inserted into a mounting slot of the shell through the elastic member, and the other end of the shaft can pass through the hole and abut against the receiving surface.

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