CN220360710U

CN220360710U - Toy digging device

Info

Publication number: CN220360710U
Application number: CN202322020253.2U
Authority: CN
Inventors: 蔡锦荣
Original assignee: Shantou Chenghai Deyi Toy Factory
Current assignee: Shantou Chenghai Deyi Toy Factory
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-01-19
Anticipated expiration: 2033-07-28

Abstract

The utility model relates to a toy excavating device, wherein an excavating component is divided into three parts of a big arm, a small arm and a bucket, then the big arm is driven to rotate by a big arm driving motor, the small arm is driven to rotate by a small arm driving motor, and the bucket is driven to rotate by a bucket driving motor, so that the excavating component can rotate in three sections, the excavating action of a toy is greatly enriched, and the toy can excavate effectively; in addition, through the setting of gyration drive assembly for the frame can rotate relative chassis, and then drives the relative chassis rotation of excavation subassembly, makes the toy possess gyration action.

Description

Toy digging device

Technical Field

The utility model relates to the field of toys, in particular to a toy excavating device.

Background

The toy excavating device can carry out excavating actions, part of the toy excavating device drives the excavating arm to execute corresponding actions through the motor, and the excavating is completed in the action process of the excavating arm. However, in the toy excavating device of the related art, the excavating arm can only move relative to the base as a whole, and the excavating arm can only move singly, so that effective excavation cannot be performed;

in addition, the toy excavating device can only perform excavating action, and cannot perform rotation, that is, cannot perform rotation after excavating.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a toy excavating device which can perform complex excavating actions and can also perform rotary motions.

The utility model provides a toy excavating device which comprises a chassis, a rack movably arranged on the chassis, a rotary driving assembly connected with the rack in a driving way and an excavating assembly movably arranged on the rack, wherein the rotary driving assembly is arranged on the rack;

the rotary driving assembly comprises a gear ring, a rotary gear meshed with the gear ring and a rotary motor in driving connection with the rotary gear, one of the gear ring and the rotary gear is arranged on the chassis, the other of the gear ring and the rotary gear is arranged on the frame, and the rotary motor drives the rotary gear to rotate, so that the frame and the chassis rotate relatively;

the excavating assembly comprises a large arm, a large arm driving motor, a small arm driving motor, a bucket and a bucket driving motor, wherein the large arm is rotatably arranged on the chassis, the large arm driving motor is in driving connection with the large arm, the small arm driving motor is in driving connection with the small arm, the bucket is rotatably arranged on the small arm, and the bucket driving motor is in driving connection with the bucket; the large arm driving motor drives the large arm to rotate relative to the frame, the small arm driving motor drives the small arm to rotate relative to the large arm, and the bucket driving motor drives the bucket to rotate relative to the small arm.

Preferably, the toy excavating device further comprises a big arm guide assembly, a big arm piston rod in the big arm guide arm piston cylinder, and the big arm piston rod is rotatably connected with the big arm; the large arm piston rod is driven by the large arm to slide on the large arm piston cylinder in a telescopic way.

Preferably, the toy excavating device further comprises an arm guide assembly, wherein the arm guide assembly comprises an arm piston cylinder rotationally arranged on the big arm and an arm piston rod slidingly arranged in the arm piston cylinder, the arm piston rod is rotationally connected with the arm, and the arm piston rod is driven by the arm to stretch and slide on the arm piston cylinder.

Preferably, the toy excavating device further comprises a bucket guide assembly, wherein the bucket guide assembly comprises a bucket piston cylinder rotatably arranged on the small arm and a bucket piston rod slidably arranged in the bucket piston cylinder, the bucket piston rod is rotatably connected with the bucket, and the bucket piston rod is driven by the bucket to stretch and slide on the bucket piston cylinder.

Preferably, the excavating assembly further comprises a big arm transmission mechanism, wherein the big arm transmission mechanism comprises big arm transmission teeth integrally formed on the big arm, a big arm transmission worm connected with the big arm driving motor in a driving way and a plurality of big arm transmission gears rotatably arranged on the frame;

the big arm transmission gears are meshed sequentially, the big arm transmission teeth are meshed with the big arm transmission gears, the big arm transmission worm is meshed with the big arm transmission gears, and the big arm transmission worm is driven by the big arm driving motor to drive the big arm transmission gears to rotate, so that the big arm transmission teeth are driven by the big arm transmission gears to drive the big arm to rotate on the frame.

Preferably, the large arm transmission mechanism comprises large arm clutch gears which are respectively meshed with the two large arm transmission gears.

Preferably, the excavating assembly further comprises a small arm transmission mechanism, wherein the small arm transmission mechanism comprises a small arm transmission worm connected with the small arm driving motor in a driving way, a small arm clutch gear rotationally arranged on the large arm and a plurality of small arm transmission gears rotationally arranged on the large arm;

the small arm transmission worm is meshed with the small arm transmission gears, the small arm transmission gears are meshed sequentially, two adjacent small arm transmission gears are meshed through the small arm clutch gears, one small arm transmission gear is provided with a small arm driving shaft, the small arm driving shaft is inserted into the small arm, and the small arm driving shaft drives the small arm to rotate relative to the large arm.

Preferably, the toy digging device further comprises an electric control assembly, wherein the electric control assembly comprises a circuit board arranged on the rack and two limit switches electrically connected with the circuit board;

the big arm driving motor, the small arm driving motor and the bucket driving motor are respectively and electrically connected to the circuit board, the two limit switches are respectively arranged on the frame, the big arm is abutted to one of the limit switches when rotating, and the big arm is abutted to the other limit switch when rotating reversely.

Preferably, the limit switch comprises a pressure switch.

Preferably, the electronic control assembly further comprises a speaker arranged on the frame, and the speaker is electrically connected with the circuit board.

The implementation of the utility model has the following beneficial effects:

the utility model relates to a toy excavating device, wherein an excavating component is divided into three parts of a big arm, a small arm and a bucket, then the big arm is driven to rotate by a big arm driving motor, the small arm is driven to rotate by a small arm driving motor, and the bucket is driven to rotate by a bucket driving motor, so that the excavating component can rotate in three sections, the excavating action of a toy is greatly enriched, and the toy can excavate effectively;

in addition, through the setting of gyration drive assembly for the frame can rotate relative chassis, and then drives the relative chassis rotation of excavation subassembly, makes the toy possess gyration action.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.

FIG. 1 is a schematic view of the construction of a toy excavation device of the present utility model;

FIG. 2 is an exploded view of the toy excavation device of FIG. 1;

fig. 3 is a schematic view of a portion of the toy excavating device shown in fig. 2

Fig. 4 is a schematic view of the clutch gear of the toy excavating device of the present utility model.

Detailed Description

Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While embodiments of the present utility model are illustrated in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the utility model. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Fig. 1 shows a toy excavation device 10 according to some embodiments of the present utility model, the toy excavation device 10 being capable of performing an excavation operation, the toy excavation device 10 being capable of being mounted on various toys having an excavation function, and the toy being capable of being flexibly mounted in its external shape.

As shown in fig. 1 and 2, the toy excavating device 10 includes a chassis 1, a frame 2 movably provided on the chassis 1, a swing drive unit 3 drivingly connected to the frame 2, and an excavating unit 4 movably provided on the frame 2.

It will be appreciated that the chassis 1 acts to support the rotation of the frame 2. The frame 2 is used to support an excavating assembly 4. The slewing drive assembly 3 is used for driving the chassis 1 and the frame 2 to rotate relatively. The digging assembly 4 is for performing a digging action.

As shown in fig. 2, the swing drive assembly 3 includes a ring gear 31, a swing gear 32 meshed with the ring gear, and a swing motor 33 drivingly connected to the swing gear 32, one of the ring gear 31 and the swing gear 32 is provided on the chassis 1, the other of the ring gear 31 and the swing gear 32 is provided on the frame 2, and the swing motor 33 drives the swing gear 32 to rotate, so that the frame 2 and the chassis 1 rotate relatively.

It will be appreciated that the ring gear 31 is generally annular and is provided with driving teeth. The ring gear 31 may be configured such that an inner ring is provided with teeth for transmission, or an outer ring is provided with teeth for transmission. The swing gear 32 meshes with the ring gear 31 so that power transmission is possible therebetween. The swing motor 33 is used to provide torque that drives the swing gear 32 to rotate.

It should be noted that the ring gear 31 may be provided on the chassis 1, and the swing gear 32 may be provided on the frame 2; or the ring gear 31 is provided on the frame 2 and the swing gear 32 is provided on the chassis 1. The relative rotation of the frame 2 and the chassis 1 can be realized in both embodiments.

As shown in fig. 2 and 3, the excavating unit 4 includes a large arm 411 rotatably provided to the chassis 1, a large arm driving motor 412 drivingly connected to the large arm 411, a small arm 421 rotatably provided to the large arm 411, a small arm driving motor 422 drivingly connected to the small arm 421, a bucket 431 rotatably provided to the small arm 421, and a bucket driving motor 432 drivingly connected to the bucket 431; the large arm driving motor 412 drives the large arm 411 to rotate relative to the frame 2, the small arm driving motor 422 drives the small arm 421 to rotate relative to the large arm 411, and the bucket driving motor 432 drives the bucket 431 to rotate relative to the small arm 421.

It will be appreciated that one end of the large arm 411 is rotatably connected to the frame 2 via a rotation shaft, the other end of the large arm 411 is rotatably connected to one end of the small arm 421 via a rotation shaft, and the other end of the small arm 421 is rotatably connected to the bucket 431. When the large arm 411 rotates, the small arm 421 is driven to lift relative to the frame 2, when the small arm 421 rotates, the bucket 431 is driven to move towards the direction close to or far away from the frame 421, when the bucket 431 rotates, the bucket 431 is buckled towards the direction close to the small arm 421 or is opened towards the direction far away from the small arm 421, the bucket 431 can perform excavating action in the process of rotating and buckling, and objects in the bucket 431 can be poured out in the process of rotating and opening the bucket 431. The large arm driving motor 412 provides a force for driving the large arm 411 to rotate relative to the frame 2, the small arm driving motor 422 provides a force for driving the small arm 421 to rotate relative to the large arm 411, and the bucket driving motor 432 provides a force for driving the bucket 431 to rotate relative to the small arm 421.

It should be noted that, the length of the large arm 411, the length of the small arm 421 and the volume of the small arm 421 may be flexibly set, and the respective shapes of the three may be flexibly designed.

In summary, according to the toy excavating device, the excavating component is divided into the big arm, the small arm and the bucket, then the big arm is driven to rotate by the big arm driving motor, the small arm is driven to rotate by the small arm driving motor, and the bucket is driven to rotate by the bucket driving motor, so that the excavating component can rotate in three sections, the excavating action of the toy is greatly enriched, the toy can excavate effectively, and the excavating action of the toy is more flexible; in addition, through the setting of gyration drive assembly for the frame can rotate relative chassis, and then drives the relative chassis rotation of excavation subassembly, makes the toy possess gyration action.

As shown in fig. 2 and 3, in some embodiments of the toy excavating device 10, the toy excavating device 10 further comprises a big arm guide assembly 413, the big arm guide assembly 413 comprising a big arm piston cylinder 414 rotatably arranged on the frame 2, and a big arm piston rod 415 slidably arranged in the big arm piston cylinder 414, the big arm piston rod 415 being rotatably connected with the big arm 411; the large arm piston rod 415 is driven by the large arm 411 to slide on the large arm piston cylinder 414 in a telescopic manner.

It will be appreciated that the large arm guide assemblies 413 are used to guide the large arm 411 to rotate along a predetermined track, the number of large arm guide assemblies 413 may be two, and the two large arm guide assemblies 413 are symmetrically disposed on two sides of the large arm 411, so as to jointly define and guide the large arm 411 from two opposite sides, thereby preventing the large arm 411 from shaking during rotation. The large arm piston cylinder 414 has a cylindrical shape with one end opened, and the large arm piston rod 415 slides along the inner wall surface of the large arm piston cylinder 414 during sliding.

As shown in fig. 2 and 3, in some embodiments of the toy excavating device 10, the toy excavating device 10 further comprises a forearm guide assembly 423, wherein the forearm guide assembly 423 comprises a forearm piston cylinder 424 rotatably arranged on the big arm 411, and a forearm piston rod 425 slidably arranged in the forearm piston cylinder 424, the forearm piston rod 425 is rotatably connected with the forearm, and the forearm piston rod 425 is driven by the forearm to slide telescopically on the forearm piston cylinder 424.

As can be appreciated, the forearm guide assembly 423 serves to guide rotation of the forearm 421, but also serves to limit the ultimate rotational position of the forearm 421 relative to the larger arm, while improving stability of the forearm 421 during rotation. The arm piston cylinder 424 has a cylindrical shape with one end opened, and the arm piston rod 425 is slidably inserted into the arm piston cylinder 424 from the opening.

When the small arm 421 rotates relative to the large arm 411, the small arm piston rod 425 slides along the inner wall of the small arm piston cylinder 424, and when the small arm piston rod 425 moves to the limit position in the small arm piston cylinder 424, the small arm 421 cannot rotate continuously. Of course, the limiting of the rotation limit position of the small arm 421 on the large arm 411 may be defined by other limiting structures, for example, a limiting protrusion is disposed between the large arm 411 and the small arm 421, or the rotation connection position of the large arm 411 and the small arm 421 is limited in a slot or a hole, so that the large arm 411 or the small arm 421 cannot continue to rotate relatively when being abutted against the slot wall, and the purpose of rotation limitation is achieved.

As shown in fig. 2, in some embodiments of the toy excavating device 10, the toy excavating device 10 further comprises a bucket guide assembly 433, the bucket guide assembly 433 comprises a bucket piston cylinder 434 rotatably arranged on the arm, and a bucket piston rod 435 slidably arranged in the bucket piston cylinder 434, the bucket piston rod 435 is rotatably connected with the bucket 431, and the bucket piston rod 435 is driven by the bucket 431 to slide telescopically on the bucket piston cylinder 434.

It will be appreciated that the bucket guide assembly 433 functions to guide the rotation of the bucket 431 while also limiting the maximum angle of rotation of the bucket 431 relative to the forearm 421. The bucket piston cylinder 434 has a cylindrical shape with one end open, and one end of the bucket piston rod 435 is slidably inserted into the open end of the bucket piston cylinder 434. The bucket piston rod 435 slides along the inner wall surface of the bucket piston cylinder 434 by the bucket 431.

Similarly, the principle of the bucket piston rod 435 sliding in the bucket piston cylinder 434 to limit the rotation of the bucket 431 is similar to that of the arm guide assembly 423 described above, and will not be described again.

As shown in fig. 2 and 3, in some embodiments of the toy excavating device 10, the excavating assembly 4 further comprises a big arm transmission mechanism 441, wherein the big arm transmission mechanism 441 comprises big arm transmission teeth 4411 integrally formed on the big arm 411, a big arm transmission worm 4412 in driving connection with the big arm driving motor 412, and a plurality of big arm transmission gears 4413 rotatably arranged on the frame 2;

the big arm transmission gears 4413 are sequentially meshed, the big arm transmission gear 4411 is meshed with the big arm transmission gear 4413, the big arm transmission worm 4412 is driven by the big arm driving motor 412 to drive the big arm transmission gears 4413 to rotate, and accordingly the big arm transmission gear 4411 is driven by the big arm transmission gear 4413 to drive the big arm 411 to rotate on the frame 2.

As will be appreciated, the large arm transmission mechanism 441 is used to transmit torque of the large arm drive motor 412 to the large arm 411 so that the large arm 411 can rotate relative to the frame 2. The number of the large arm gear 4411 is plural, and the large arm gear 4411 is arranged at equal intervals, so that the large arm gear 4413 can be meshed with the large arm gear 4411 to realize torque transmission. The large arm driving worm 4412 is used for transmitting the torque of the large arm driving motor 412 to the large arm driving gears 4413, and the large arm driving gears 4413 are sequentially meshed to jointly play a role in transmitting power, and the large arm driving worm 4412 can drive the large arm 411 to rotate on the frame 2 through the large arm driving gears 4413.

As shown in fig. 2 and 3, in some embodiments of toy excavation device 10, boom drive mechanism 441 includes a boom clutch gear 4414, with boom clutch gear 4414 meshing with two boom drive gears 4413, respectively.

It will be appreciated that the large arm clutch gear 4414 is used to transmit torque, and when the large arm 411 is blocked due to the limitation of the external operation environment during rotation, if the large arm driving motor 412 still outputs torque, the large arm clutch gear 4414 will stop transmitting torque although receiving torque, so as to avoid motor damage, etc. The large arm clutch gear 4414 may be a clutch gear commonly known in the prior art. As shown in fig. 2 and 3, in some embodiments of toy excavation device 10, excavation assembly 4 further comprises a forearm drive mechanism 451, forearm drive mechanism 451 comprising a forearm drive worm 4511 drivingly connected to a forearm drive motor 422, a forearm clutch gear 4512 rotatably disposed on a large arm 411, and a plurality of forearm drive gears 4513 rotatably disposed on large arm 411;

the arm drive worm 4511 is meshed with the arm drive gears 4513, each arm drive gear 4513 is meshed sequentially, wherein two adjacent arm drive gears 4513 are meshed through the arm clutch gear 4512, one arm drive gear 4513 is provided with an arm drive shaft 4514, the arm drive shaft is inserted into the arm, and the arm drive shaft drives the arm to rotate relative to the large arm 411.

As will be appreciated, the forearm transmission 451 is configured to transmit torque output by the forearm drive motor 422 to the forearm 421 such that the forearm 421 can rotate relative to the forearm 411. The arm driving worm 4511 is configured to rotate under the driving of the arm driving motor 422 and drive the arm driving gears 4513 to rotate, where each arm driving gear 4513 is sequentially engaged, and two arm driving gears 4513 are engaged through the arm clutch gear 4512. After the arm driving shaft 4514 is inserted into the arm 421, the arm driving shaft 4514 and the arm 421 are clamped to each other in the rotation direction, so that the arm driving shaft 4514 can drive the arm 421 to rotate. Further, as shown in fig. 4, the device comprises a connecting shaft 21, a first gear part 22 sleeved on the connecting shaft 21, a second gear part 23 sleeved on the connecting shaft 21, and a spring 24 arranged on the connecting shaft;

it should be noted that, the small arm transmission gear 4513 may be configured to be disposed in the large arm, so as to avoid the gear from being exposed, on one hand, to sufficiently account for the inner space of the large arm, to improve the compactness of the product, and to effectively protect the gear, and on the other hand, to avoid the gear from causing a pinch injury to the user during the rotation process.

The first gear portion 22 is provided with a first inserting portion 221, the second gear portion 23 is provided with a second inserting portion 231, the first inserting portion is matched with the second inserting portion, and the spring provides acting force for driving the first gear portion to abut against the second gear portion, so that the first inserting portion is in plug-in fit with the second inserting portion.

It can be appreciated that in the torque transmission process, if no unexpected clamping stagnation occurs, under the condition that the first inserting portion and the second inserting portion are in plug-in fit, the first gear portion and the second gear portion can synchronously rotate, and the torque can be transmitted to other gears meshed with the first gear portion and the second gear portion through synchronous rotation. The first gear part is meshed with a component needing to act, the second gear part is meshed with a motor outputting torque, if unexpected clamping stagnation occurs, the first gear part cannot rotate, but the torque output by the motor still can be output to the second gear part, then the second gear part rotates relative to the first gear part, the second inserting part and the first inserting part are driven to rotate relative to each other by overcoming the elastic force of a spring, and therefore the torque output by the motor is not further transmitted through a clutch gear, namely, power cutting is realized when the action clamping stagnation occurs.

As shown in fig. 3, in some embodiments of toy excavation device 10, toy excavation device 10 further includes an electronic control assembly 5, electronic control assembly 5 including a circuit board 51 disposed on frame 2, and two limit switches 52 electrically connected to circuit board 51; the large arm driving motor 412, the small arm driving motor 422 and the bucket driving motor 432 are respectively and electrically connected to the circuit board 51, the two limit switches 52 are respectively arranged on the frame 2, the large arm 411 is abutted to one of the limit switches 52 when rotating, and the large arm 411 is abutted to the other limit switch 52 when rotating reversely.

It will be appreciated that the electronic control assembly 5 is used to electronically control the excavating device 10. The circuit board 51 is used for receiving corresponding electrical signals and controlling corresponding components to operate. The limit switch 52 is used to transmit a corresponding signal to the circuit board 51 when triggered.

It should be noted that, the large arm 411 may rotate upward or downward relative to the frame 2, when the large arm 411 rotates to a predetermined limit position, both the upward rotation and the downward rotation trigger the corresponding limit switch 52, and after the corresponding limit switch 52 in the corresponding direction is triggered, the large arm driving motor 412 is controlled to stop torque output in the driving direction. Specifically, limit switch 52 comprises a pressure switch.

Further, in some embodiments of toy excavation device 10, electronic control assembly 5 further includes a speaker 53 disposed on frame 2, speaker 53 being electrically coupled to circuit board 51. As will be appreciated, the speaker 53 is used to play sound, enhancing the interest of the product.

The aspects of the present utility model have been described in detail hereinabove with reference to the accompanying drawings. In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments. Those skilled in the art will also appreciate that the acts and modules referred to in the specification are not necessarily required for the present utility model. In addition, it can be understood that the steps in the method of the embodiment of the present utility model may be sequentially adjusted, combined and pruned according to actual needs, and the modules in the device of the embodiment of the present utility model may be combined, divided and pruned according to actual needs.

The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. The toy excavating device is characterized by comprising a chassis, a rack movably arranged on the chassis, a rotary driving assembly connected with the rack in a driving manner, and an excavating assembly movably arranged on the rack;

2. The toy excavating device according to claim 1 further comprising a boom guide assembly comprising a boom piston cylinder rotatably disposed on said frame and a boom piston rod slidably disposed within said boom piston cylinder, said boom piston rod being rotatably connected to said boom; the large arm piston rod is driven by the large arm to slide on the large arm piston cylinder in a telescopic way.

3. The toy excavating device according to claim 1 further comprising a forearm guide assembly comprising a forearm piston cylinder rotatably disposed on the forearm and a forearm piston rod slidably disposed within the forearm piston cylinder, the forearm piston rod being rotatably connected to the forearm, the forearm piston rod being driven by the forearm to slide telescopically on the forearm piston cylinder.

4. The toy excavating device according to claim 1 further comprising a bucket guide assembly comprising a bucket piston cylinder rotatably disposed on the forearm and a bucket piston rod slidably disposed within the bucket piston cylinder, the bucket piston rod being rotatably coupled to the bucket, the bucket piston rod being telescopically slidable on the bucket piston cylinder by the bucket.

5. The toy digging implement of claim 1, wherein the digging assembly further comprises a large arm transmission mechanism, the large arm transmission mechanism comprising large arm transmission teeth integrally formed on the large arm, a large arm transmission worm drivingly connected to the large arm driving motor, and a plurality of large arm transmission gears rotatably disposed on the frame;

6. The toy excavating device according to claim 5 wherein said boom transmission mechanism comprises a boom clutch gear, said boom clutch gear being in mesh with two of said boom transmission gears, respectively.

7. The toy digging implement of claim 1, wherein the digging assembly further comprises a forearm drive mechanism comprising a forearm drive worm drivingly connected to the forearm drive motor, a forearm clutch gear rotatably disposed on the forearm, and a plurality of forearm drive gears rotatably disposed on the forearm;

8. The toy excavation device of claim 1, further comprising an electrical control assembly including a circuit board disposed on the housing and two limit switches electrically connected to the circuit board;

9. The toy digging implement of claim 8, wherein the limit switch comprises a sheeting switch.

10. The toy excavation device of claim 8, wherein the electronic control assembly further comprises a speaker disposed on the housing, the speaker electrically coupled to the circuit board.