CN217067652U - Excavator simulation toy - Google Patents

Abstract

An excavator simulation toy comprises a base, a traveling mechanism, a cab, an excavating arm and a control device; the excavating arm comprises a movable arm, a bucket rod and a bucket; the excavator simulation toy also comprises a cab rotation driving device, a movable arm swing driving device, a bucket rod swing driving device and a bucket swing driving device; the bucket swinging driving device comprises a swinging shaft, a bucket driving motor, a transmission gear set and a first telescopic rod, the swinging shaft is rotatably arranged in an inner cavity of the bucket rod, and the upper end of the bucket is fixedly arranged on the swinging shaft; a first-stage gear of the transmission gear set is in transmission connection with the bucket driving motor, and a last-stage gear of the transmission gear set is fixedly arranged on the swinging shaft; the rear end of the first telescopic rod is hinged with the bucket rod, and the front end of the first telescopic rod is hinged with the bucket. The excavator simulation toy can simplify the structure of the excavating arm, is convenient to mount and dismount, and can effectively reduce or avoid the situation that the bucket cannot normally act due to collision or manual messy twisting.

Description

Excavator simulation toy

Technical Field

The utility model relates to the technical field of toys, concretely relates to excavator emulation toy.

Background

Toys are very important fun for children, with the development of society, the types of toys are more and more, and in order to arouse the interest of children, many toys are developed towards the aspect of simulation toys. The simulation toy is similar to real goods in real life in terms of general shape, structure and local details, such as engineering vehicle simulation toy, automobile simulation toy and the like, can cultivate the object-learning ability of children, and is beneficial to developing early intelligence of children. However, most of excavator toys sold in the daily market integrate all parts of the excavator arm, the excavator arm can only realize simple overall swing motion, the movable arm, the arm and the bucket on the excavator arm can not realize independent motion, and can not realize independent rotation of the cab, the motion of the excavator is greatly different from that of an actual engineering mechanical excavator, the simulation degree is insufficient, children can easily mislead the understanding of the excavator, and the development of children intelligence and the exercise of control capability are limited.

In order to solve the above problem, the applicant applied for chinese utility model patent with application number CN202021816745.2 on 27/08/2020, which discloses a toy excavator, including excavator controller, excavator base, driver's cabin and digging arm, the driver's cabin is rotatable to be installed on the excavator base, is equipped with running gear on the excavator base, its characterized in that: the excavator base, the cab, the movable arm and the bucket rod are all provided with inner cavities; a cab rotation driving device capable of driving the cab to rotate is arranged in an inner cavity of the cab, a movable arm swing driving device capable of driving the movable arm to swing around the lower end of the movable arm inner cavity is arranged at the lower end of the movable arm inner cavity, an arm swing driving device capable of driving the arm to swing around the rear end of the arm swing driving device is arranged at the upper end of the movable arm inner cavity, and a bucket swing driving device capable of driving the bucket to swing around the upper end of the arm swing driving device is arranged in the inner cavity of the arm; and signal input ends of the cab rotation driving device, the movable arm swing driving device, the bucket rod swing driving device and the bucket swing driving device are respectively and electrically connected with corresponding signal output ends of the excavator controller. The toy excavator is provided with the plurality of driving devices to drive each part on the toy excavator body, so that various actions of the actual engineering mechanical excavator are simulated, and the simulation degree is high.

The bucket swing driving device comprises a bucket four-bar mechanism, a bucket swing driving motor and a bucket swing driving gear set, the bucket swing driving motor and the bucket swing driving gear set are respectively arranged in an inner cavity of the bucket rod, an output shaft of the bucket swing driving motor is in transmission connection with a first-stage gear of the bucket swing driving gear set, a last-stage gear of the bucket swing driving gear set is located at the front end of the inner cavity of the bucket rod, a bucket swing driving clutch assembly is arranged in the bucket swing driving gear set and comprises a bucket swing driving clutch compression spring and two bucket swing driving clutch end face gears, two coaxially arranged bucket swing driving gears are further arranged in the bucket swing driving gear set, the bucket swing driving clutch compression spring is sleeved on the shaft, one end of the bucket swing driving clutch compression spring is in contact with the inner cavity of the bucket rod, The other end of the driving gear is contacted with one of the bucket swinging driving gears, the two bucket swinging driving clutch face gears are respectively and fixedly connected with the two bucket swinging driving gears, and the two bucket swinging driving clutch face gears are meshed; the bucket four-link mechanism comprises a first link rod, a second link rod and a connecting rod, wherein the rear end of the first link rod is fixedly connected with a final-stage gear of the bucket swing driving gear set, the first link rod extends out of the bucket rod from the inner cavity of the bucket rod, the front end of the first link rod is hinged with the rear end of the connecting rod, the second link rod is fixedly arranged on the bucket, the front end of the second link rod is hinged with the front end of the connecting rod, the rear end of the second link rod is hinged with the front end of the bucket rod, and the hinged point of the second link rod and the bucket rod is positioned in front of the connecting point of the first link rod and the bucket swing driving gear; and the signal input end of the bucket swinging driving motor is electrically connected with the corresponding signal output end of the excavator controller. When the scraper bowl action needs to be driven, the excavator controller controls the scraper bowl swing driving motor to rotate, the scraper bowl swing driving motor drives the scraper bowl swing driving gear to rotate through the scraper bowl swing driving gear set, the first connecting rod swings around the scraper bowl swing driving gear, the second connecting rod is driven to move through the connecting rod, the second connecting rod swings around the position where the second connecting rod is connected with the scraper bowl, and therefore the scraper bowl is driven to swing.

However, this kind of toy excavator's structure is more close to actual engineering machine tool, and the action part all can realize independent control, and control method is various, has greatly enriched toy excavator's control mode, but, above-mentioned scraper bowl swing drive arrangement's structure is comparatively complicated, and it is comparatively inconvenient to lead to the installation and the dismantlement of digging arm, and in the in-service use, because four-bar linkage sets up outside digging arm, it is damaged because of collision or artificial indiscriminate the turning round easily in children's play process, leads to the unable normal action of digging arm's scraper bowl.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an excavator emulation toy is provided, this kind of excavator emulation toy not only can simplify the structure of digging arm, is convenient for install and dismantle, can effectively reduce moreover or avoid leading to the unable normal condition appearance of action of scraper bowl because of collision or artificial indiscriminate turning round. The technical scheme is as follows:

an excavator simulation toy comprises a base, a traveling mechanism, a cab, an excavating arm and a control device, wherein the cab is rotatably arranged on the base; the excavating arm comprises a movable arm, a bucket rod and a bucket, the lower end of the movable arm is rotatably mounted on the cab, the rear end of the bucket rod is rotatably mounted at the upper end of the movable arm, the upper end of the bucket is rotatably mounted at the front end of the bucket rod, and the base, the cab, the movable arm and the bucket rod are all provided with inner cavities; the excavator simulation toy also comprises a cab rotation driving device for driving the cab to rotate, a movable arm swing driving device for driving a movable arm to swing around the lower end of the movable arm, an arm swing driving device for driving an arm to swing around the rear end of the arm and a bucket swing driving device for driving a bucket to swing around the upper end of the bucket, and the cab rotation driving device, the movable arm swing driving device, the arm swing driving device and the bucket swing driving device are respectively and electrically connected with corresponding output ends of the control device; the method is characterized in that: the bucket swinging driving device comprises a swinging shaft, a bucket driving motor, a transmission gear set and a first telescopic rod, the swinging shaft is rotatably installed in an inner cavity of the bucket rod and is arranged along the left-right direction, and the upper end of the bucket is fixedly installed on the swinging shaft; the bucket driving motor and the transmission gear set are both arranged in the inner cavity of the bucket rod, a first-stage gear of the transmission gear set is in transmission connection with an output shaft of the bucket driving motor, and a last-stage gear of the transmission gear set is fixedly arranged on the swinging shaft; the rear end of the first telescopic rod is hinged to the bucket rod, and the front end of the first telescopic rod is hinged to the bucket.

When the cab needs to be driven to act, the control device can control the cab rotation driving device to drive the cab to rotate, so that the clockwise and anticlockwise rotation of the cab is realized; when the movable arm needs to be driven to move, the control device can control the movable arm swing driving device to drive the movable arm to swing around the lower end of the movable arm, so that the action of lifting or putting down the movable arm is realized; when the bucket rod needs to be driven to act, the control device can control the bucket rod swinging driving device to drive the bucket rod to swing around the rear end of the bucket rod, so that the action of lifting or putting down the bucket rod is realized; when the bucket needs to be driven to move, the bucket driving motor of the bucket swing driving device can be controlled by the control device to drive the swing shaft to rotate through the transmission gear set, so that the bucket is driven to swing upwards or downwards by a certain angle around the swing shaft (at the moment, the first telescopic rod performs corresponding extending or retracting movement under the driving of the bucket, a certain traction effect is performed on the bucket, the swing of the bucket is more stable), and the digging movement of the bucket is realized. The excavator simulation toy drives each component on the excavator simulation toy body by arranging a plurality of driving devices so as to simulate various actions of the actual engineering machinery excavator, the simulation degree is high, the bucket swinging driving device transmits the power of the bucket driving motor to the bucket through the transmission gear set and the swinging shaft, and pulls the bucket through the first telescopic rod, the bucket can realize stable swing, and the swing shaft, the digging shovel driving motor and the transmission gear set are all hidden in the inner cavity of the small arm, compared with the prior art in which the bucket swinging driving device adopts a transmission structure of a four-bar mechanism, the structure of the bucket swinging driving device can be simplified, the structure of the excavating arm is simpler and more compact, the installation and the disassembly are convenient, and the condition that the bucket cannot normally act due to collision or manual torque can be effectively reduced or avoided.

Generally, the control device adopts a single chip microcomputer, a PLC controller or a CPU.

In the preferred scheme, the bucket is provided with two connecting protection walls which are arranged side by side from left to right, and the front end part of the first telescopic rod is hinged between the two connecting protection walls through a connecting pin shaft which moves from left to right.

In a further preferred scheme, the connecting pin shaft is rotatably arranged on the two connecting protection walls, the front end part of the first telescopic rod is provided with a mounting hole, and the front end part of the first telescopic rod is sleeved on the middle part of the connecting pin shaft through the mounting hole; two limit sleeves which are arranged side by side at the left and the right are sleeved on the connecting pin shaft and are respectively positioned between the corresponding connecting protection wall and the front end of the first telescopic rod. Like this, two spacing sleeves of accessible carry on spacingly to first telescopic link rear end in the position of connecting pin axle, make the flexible more steady of first telescopic link.

In a preferred scheme, the first telescopic rod comprises a rod body and a sleeve, the rear part of the rod body is located in a cavity of the sleeve, the rear end of the sleeve is hinged to the bucket rod, and the front end of the rod body is hinged to the bucket.

In a further preferred scheme, the first telescopic rod further comprises a compression spring, the compression spring is arranged in the cavity of the sleeve, and two ends of the compression spring are respectively in close contact with the rear end of the rod body and the rear end of the sleeve. The compression spring is used for applying forward acting force to the rod body of the first telescopic rod, and applying certain acting force to the transmission gear set through the bucket and the swinging shaft, so that transmission gaps among all gears of the transmission gear set are effectively eliminated, and power transmission between the bucket driving motor and the swinging shaft is more stable.

In a preferred scheme, the excavator simulation toy further comprises a second telescopic rod, the rear end of the second telescopic rod is hinged to the movable arm, and the front end of the second telescopic rod is hinged to the rear end of the bucket rod. When the dipper was forward or when the backward swing, the second telescopic link was corresponding stretching out or the action of retracting under the drive of dipper, can play the tractive effect to the dipper, made the fore-and-aft swing motion of dipper more steady. The second telescopic rod can adopt the structure which is completely the same as that of the first telescopic rod.

In a more preferable scheme, the shapes of the first telescopic rod and the second telescopic rod are both in the shape of a hydraulic cylinder. Therefore, the overall shape of the excavating arm is more attractive and vivid and is closer to the actual engineering machinery.

The cab rotation driving device, the movable arm swing driving device, the bucket rod swing driving device and the bucket swing driving device all adopt the conventional structures, and the specific structures refer to the Chinese utility model patent specification with the application number of CN202021816745.2, which is applied by the applicant at 27/08/2020.

Compared with the prior art, the utility model, have following advantage:

the excavator simulation toy simplifies the structure of the bucket swing driving device, the power of the bucket driving motor is transmitted to the bucket through the transmission gear set and the swing shaft, meanwhile, the bucket is pulled through the first telescopic rod to realize stable swing, and the swing shaft, the digging shovel driving motor and the transmission gear set are hidden in the inner cavity of the small arm.

Drawings

Fig. 1 is a schematic structural diagram of a first preferred embodiment of the present invention.

Fig. 2 is a schematic structural view of an excavating arm according to a first preferred embodiment of the present invention.

Fig. 3 is a perspective view of fig. 2.

Fig. 4 is a schematic structural view of a first telescopic rod in the second embodiment of the present invention.

Detailed Description

Example one

As shown in fig. 1-3, the excavator simulation toy comprises a base 1, a traveling mechanism 2, a cab 3, an excavating arm 4 and a control device (not shown in the figures), wherein the cab 3 is rotatably mounted on the base 1, and the traveling mechanism 2 is mounted on the base 1; the excavating arm 4 comprises a movable arm 41, an arm 42 and a bucket 43, the lower end of the movable arm 41 is rotatably mounted on the cab 3, the rear end of the arm 42 is rotatably mounted at the upper end of the movable arm 41, the upper end of the bucket 43 is rotatably mounted at the front end of the arm 42, and the base 1, the cab 3, the movable arm 41 and the arm 42 are all provided with inner cavities; the excavator simulation toy further comprises a cab rotation driving device (not shown in the figure) for driving the cab 3 to rotate, a boom swing driving device 7 for driving the boom 41 to swing around the lower end of the boom, an arm swing driving device 8 for driving the arm 42 to swing around the rear end of the arm, and a bucket swing driving device 9 for driving the bucket 43 to swing around the upper end of the arm, wherein the cab rotation driving device, the boom swing driving device 7, the arm swing driving device 8 and the bucket swing driving device 9 are respectively and electrically connected with corresponding output ends of the control device; the bucket swinging driving device 9 comprises a swinging shaft 91, a bucket driving motor 92, a transmission gear set 93 and a first telescopic rod 94, wherein the swinging shaft 91 is rotatably installed in the inner cavity of the bucket rod 42 and is arranged along the left-right direction, and the upper end of the bucket 43 is fixedly installed on the swinging shaft 91; the bucket driving motor 92 and the transmission gear set 93 are both arranged in the inner cavity of the bucket rod 42, a first-stage gear of the transmission gear set 93 is in transmission connection with an output shaft of the bucket driving motor 92, and a last-stage gear of the transmission gear set 93 is fixedly arranged on the swinging shaft 91; the rear end of the first telescopic rod 94 is hinged to the bucket rod 42, and the front end of the first telescopic rod 94 is hinged to the bucket 43.

In this embodiment, the control device is a single chip, a PLC controller, or a CPU.

In this embodiment, the bucket 43 is provided with two connecting retaining walls 431 which are arranged side by side left and right, and the front end of the first telescopic rod 94 is hinged between the two connecting retaining walls 431 through a connecting pin shaft 432 which runs left and right; the connecting pin shaft 432 is rotatably installed on the two connecting protection walls 431, the front end part of the first telescopic rod 94 is provided with an installation hole, and the front end part of the first telescopic rod 94 is sleeved on the middle part of the connecting pin shaft 432 through the installation hole; two limiting sleeves 433 which are arranged side by side left and right are sleeved on the connecting pin shaft 432, and the two limiting sleeves 433 are respectively positioned between the corresponding connecting protective wall 431 and the front end of the first telescopic rod 94. Like this, two spacing sleeves 433 of accessible carry on spacingly to first telescopic link 94 rear end in the position of connecting pin 432, make the flexible more steady of first telescopic link 94.

In this embodiment, the first telescopic rod 94 comprises a sleeve 941 and a rod 942, wherein the rear part of the rod 942 is located in the cavity of the sleeve 941, the rear end of the sleeve 941 is hinged to the bucket rod 42, and the front end of the rod 942 is hinged to the bucket 43. As bucket 43 swings up and down, rod 942 extends from and retracts into sleeve 941 at the leading lower portion of bucket 43.

The excavator simulation toy further comprises a second telescopic rod 10, the rear end of the second telescopic rod is hinged to the movable arm 41, and the front end of the second telescopic rod is hinged to the rear end of the bucket rod 42. When the arm 42 swings forwards or backwards, the second telescopic rod is driven by the arm 42 to correspondingly extend or retract, so that the arm 42 can be pulled to a certain extent, and the forward and backward swinging movement of the arm 42 is more stable. The second telescopic rod adopts the same structure as the first telescopic rod 94.

In the present embodiment, the first telescopic rod 94 and the second telescopic rod 10 are both shaped like a hydraulic cylinder. Therefore, the overall shape of the digging arm 4 is more beautiful and vivid and is closer to the actual engineering machinery.

The working principle of the excavator simulation toy is briefly described as follows:

when the cab 3 needs to be driven to act, the control device can control the cab rotation driving device to drive the cab 3 to rotate, so that the clockwise and anticlockwise rotation of the cab 3 is realized; when the movable arm 41 needs to be driven to move, the control device can control the movable arm swing driving device 7 to drive the movable arm 41 to swing around the lower end of the movable arm, so that the movable arm 41 can be lifted or lowered; when the bucket rod 42 needs to be driven to move, the control device can control the bucket rod swinging driving device 8 to drive the bucket rod 42 to swing around the rear end of the bucket rod, so that the bucket rod 42 can be lifted or lowered; when the bucket 43 needs to be driven to move, the control device can control the bucket driving motor 92 of the bucket swing driving device 9 to drive the swing shaft 91 to rotate through the transmission gear set 93, so as to drive the bucket 43 to swing upwards or downwards by a certain angle around the swing shaft 91 (at this time, the first telescopic rod 94 is driven by the bucket 43 to perform corresponding extending or retracting movement, so that a certain drawing effect is performed on the bucket 43, the swing of the bucket 43 is more stable), and the digging movement of the bucket 43 is realized.

Example two

Referring to fig. 4, in the case where the other parts are the same as those of the first embodiment, the difference is: in this embodiment, the first telescopic rod 94 further comprises a compression spring 943, the compression spring 943 is disposed in the cavity of the sleeve 941, and two ends of the compression spring 943 are respectively in close contact with the rear end of the rod 942 and the rear end of the sleeve 941. The compression spring 943 is used for applying a forward acting force to the rod body 942 of the first telescopic rod 94, and applying a certain acting force to the transmission gear set 93 through the bucket 43 and the swinging shaft 91, so that a transmission gap between gears of the transmission gear set 93 is effectively eliminated, power transmission between the bucket driving motor 92 and the swinging shaft 91 is more stable, and the bucket 43 is further driven to swing around the swinging shaft 91 stably.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims (7)

1. An excavator simulation toy comprises a base, a traveling mechanism, a cab, an excavating arm and a control device, wherein the cab is rotatably arranged on the base; the excavating arm comprises a movable arm, a bucket rod and a bucket, the lower end of the movable arm is rotatably mounted on the cab, the rear end of the bucket rod is rotatably mounted at the upper end of the movable arm, the upper end of the bucket is rotatably mounted at the front end of the bucket rod, and the base, the cab, the movable arm and the bucket rod are all provided with inner cavities; the excavator simulation toy also comprises a cab rotation driving device for driving the cab to rotate, a movable arm swing driving device for driving a movable arm to swing around the lower end of the movable arm, an arm swing driving device for driving an arm to swing around the rear end of the arm and a bucket swing driving device for driving a bucket to swing around the upper end of the bucket, and the cab rotation driving device, the movable arm swing driving device, the arm swing driving device and the bucket swing driving device are respectively and electrically connected with corresponding output ends of the control device; the method is characterized in that: the bucket swinging driving device comprises a swinging shaft, a bucket driving motor, a transmission gear set and a first telescopic rod, the swinging shaft is rotatably installed in an inner cavity of the bucket rod and is arranged along the left-right direction, and the upper end of the bucket is fixedly installed on the swinging shaft; the bucket driving motor and the transmission gear set are both arranged in the inner cavity of the bucket rod, a first-stage gear of the transmission gear set is in transmission connection with an output shaft of the bucket driving motor, and a last-stage gear of the transmission gear set is fixedly arranged on the swinging shaft; the rear end of the first telescopic rod is hinged to the bucket rod, and the front end of the first telescopic rod is hinged to the bucket.

2. The excavator simulation toy of claim 1, wherein: the scraper bucket is provided with two connecting protection walls which are arranged side by side from left to right, and the front end part of the first telescopic rod is hinged between the two connecting protection walls through a connecting pin shaft which moves from left to right.

3. The excavator simulation toy of claim 2, wherein: the connecting pin shaft is rotatably arranged on the two connecting protection walls, the front end part of the first telescopic rod is provided with a mounting hole, and the front end part of the first telescopic rod is sleeved on the middle part of the connecting pin shaft through the mounting hole; two limit sleeves which are arranged side by side at the left and the right are sleeved on the connecting pin shaft and are respectively positioned between the corresponding connecting protection wall and the front end of the first telescopic rod.

4. The excavator simulation toy of claim 1, wherein: the first telescopic rod comprises a rod body and a sleeve, the rear part of the rod body is located in a cavity of the sleeve, the rear end of the sleeve is hinged to the bucket rod, and the front end of the rod body is hinged to the bucket.

5. The excavator simulation toy of claim 4, wherein: the first telescopic rod further comprises a compression spring, the compression spring is arranged in the cavity of the sleeve, and two ends of the compression spring are respectively in close contact with the rear end of the rod body and the rear end of the sleeve.

6. The excavator simulation toy of any one of claims 1 to 5, wherein: the excavator simulation toy further comprises a second telescopic rod, the rear end of the second telescopic rod is hinged to the movable arm, and the front end of the second telescopic rod is hinged to the rear end of the bucket rod.

7. The excavator simulation toy of claim 6, wherein: the shapes of the first telescopic rod and the second telescopic rod are both in the shape of a hydraulic cylinder.

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