CN214388890U - Digging arm linkage structure on toy car for children - Google Patents
Digging arm linkage structure on toy car for children Download PDFInfo
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- CN214388890U CN214388890U CN202120309802.6U CN202120309802U CN214388890U CN 214388890 U CN214388890 U CN 214388890U CN 202120309802 U CN202120309802 U CN 202120309802U CN 214388890 U CN214388890 U CN 214388890U
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Abstract
The utility model discloses a digging arm linkage structure on a children toy car, which comprises a car body, wherein the top position outside the car body is rotationally connected with a big arm, one end of the big arm is rotationally connected with a small arm, one end of the small arm is rotationally connected with a bucket, the inner side end surface of the big arm is provided with a replaceable electric driving gear box, the power output end of the replaceable electric driving gear box is fixedly connected with a swinging piece, one side end surface of the swinging piece is rotationally connected with a lifting rod, the other end surface of the swinging piece is rotationally connected with a first pull rod, the corresponding position of the big arm and the small arm is provided with a turntable, one side end surface of the turntable is rotationally connected with a second pull rod, a motor driving structure is adopted, one driving gear box and a control circuit are omitted, the cost is saved, two circuits are controlled originally, the digging, the lifting, the descending, the falling, the complex actions such as dumping and the like are completed through the matching of the two motor driving gear boxes, this is accomplished by a circuit that only needs to control one motor to drive the gearbox.
Description
Technical Field
The utility model relates to a toy car arm-digging linkage technical field specifically is an arm-digging linkage structure on children's toy car.
Background
The riding type children electric toy vehicles sold in the market, children electric engineering vehicles, children electric excavators, children electric forklifts and the like, particularly when the children electric excavators complete the actions of digging, lifting, descending, dumping and the like, the large arm, the small arm, the bucket and the joints of the engineering vehicles need to be mutually matched in rotation to complete the coherent actions, generally, the bucket and the small arm are fixed together or the large arm and the vehicle body share one electric driving gear box, and the small arm and the bucket share one electric driving gear box;
however, in the prior art, the excavator bucket cannot rotate, the big arm drives the small arm to lift and descend, the action is stiff, sand and soil cannot be carried, the excavator can not realize the excavation action of the excavator just like an axe cutting the ground, the playability is extremely low, two electric drive gear boxes are needed, two sets of circuits which can be independently controlled are needed to respectively control the two electric drive gear boxes, the cost is increased, the actions of controlling the excavator arm through the two independently controlled circuits are mutually matched, the operation difficulty is high and difficult for children, the manual drive excavator arm, the child controls the car body by one hand, controls the big arm to lift by one hand, the small arm and the excavator bucket cannot be controlled and are only integrated, and in order to avoid the technical problems, it is necessary to provide an excavator arm linkage structure on a child toy car to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model provides an arm linkage structure that digs on children's toy car, the technical bucket that can effectively solve and propose in the above-mentioned background art can not rotate, the forearm lifting of armlet drive descends, the action is stiff, can not carry the sand, just like the axe cuts the ground, can not realize the action of digging of excavator, the object for appreciation nature is extremely low, secondly, need two electric drive gear boxes, need two sets of circuit that can independently control to control these two electric drive gear boxes respectively, the cost is increased, and two actions that control the arm through two circuits that independently control mutually support, it is difficult to operate the big comparison of the degree of difficulty to children, and manually driven arm that digs, children's control automobile body on the one hand, the control arm goes up and down on the other hand, forearm and bucket are uncontrollable, can only make integrative problem.
In order to achieve the above object, the utility model provides a following technical scheme: an arm-digging linkage structure on a toy car for children comprises a car body, wherein a large arm is rotatably connected to the top position of the outer side of the car body, a small arm is rotatably connected to one end of the large arm, a bucket is rotatably connected to one end of the small arm, a replaceable electric driving gear box is mounted on the end surface of the inner side of the large arm, a swing piece is fixedly connected to the power output end of the replaceable electric driving gear box, one side end surface of the swing piece is rotatably connected with a lifting rod, the other end surface of the swing piece is rotatably connected with a first pull rod, a rotary disc is mounted at the position, corresponding to the small arm, of the large arm, and one side end surface of the rotary disc is rotatably connected with a second pull rod;
a lever is connected to the inner side edge of the turntable in a sliding manner, a first limiting body is fixedly mounted at a position, corresponding to the turntable, of one side end face of the large arm, a second limiting body is fixedly connected to a position, corresponding to the first limiting body, of the outer side of the turntable, a driving body is mounted at a position, corresponding to the lever, of the small arm, a transmission body is mounted at the middle position of the inner side of the turntable, a rotating shaft is fixedly connected to one side end face of the transmission body, and a pull rod hole is formed in a position, corresponding to the first pull rod, of the small arm;
the small arm is fixed on the big arm through the rotatable shaft, and the big arm is fixed on the vehicle body through the rotatable shaft; the driving end is positioned on the large arm, and the driving end drives the two control ends to respectively control a movable joint between the large arm and the vehicle body and a movable joint between the small arm and the large arm; the turntable is located at the joint of the large arm and the small arm, the small arm drives the turntable in a rotating mode, the turntable drives the bucket to rotate through the second pull rod, one end of the second pull rod which drives the bucket to rotate is directly fixed on the large arm, and through angle change of the large arm and the small arm, distance difference is generated when the two ends of the second pull rod are located at the positions of the large arm and the bucket to pull the bucket to rotate.
Preferably, the replaceable electric driving gear box is replaced, a handrail is installed at a position corresponding to the replaceable electric driving gear box on the inner side of the large arm, a spring is fixedly connected between the vehicle body and the large arm, a manual rod is fixedly installed on the outer side of the large arm, a damping body is fixedly installed on the inner side of the turntable located on the small arm, and one end of the damping body is fixedly connected with a damping marble;
after the manual rod is installed, when the excavating arm descends to excavate soil, the handrail on the large arm is pressed to descend the large arm, the manual rod is pulled to drive the small arm to rotate anticlockwise through the swinging piece and the first pull rod, when the small arm descends to a certain angle and approaches the ground, the limiting body of the turntable and the limiting body on the large arm act mutually, the turntable cannot rotate, the turntable end of the first pull rod is further fixed, the small arm continues to rotate and descend, due to the distance difference, the end of the second pull rod pulls the excavating bucket to rotate inwards to excavate sandy soil, when the excavating arm is lifted, the large arm slowly lifts under the action of a spring, and the manual rod is driven to drive the small arm to rotate clockwise through the swinging piece and the first pull rod; the bucket keeps the excavation state under the effect of damping piece, and the rising of carrying sand, when the forearm upwards rotates, the second pull rod under the effect of damping piece and sand weight promotes the carousel and just rotates along the trend, makes spacing body and spacing body separation, and the forearm lifting is to certain angle, and the driving body on the forearm passes through the transmission body on lever action carousel, makes the carousel high-speed counter-rotation, and the bucket counter-rotation when driving the second pull rod, and then emptys the sand in the bucket.
Preferably, an arc-shaped sliding groove is formed in the position, corresponding to the lever, of the inner side of the rotating disc, and the lever is connected with the rotating disc in a sliding mode through the arc-shaped sliding groove.
Preferably, the inner side of the pull rod hole is rotatably connected with a pull rod rotating shaft, and the first pull rod is connected with the rotary table through the pull rod rotating shaft.
Preferably, the other end of the lifting rod is connected with the vehicle body, a lifting rotating shaft is embedded into the inner side of one end of the lifting rod in a rotating mode, and the lifting rod is connected with the vehicle body in a rotating mode through the lifting rotating shaft.
Preferably, a turntable is arranged at the position of the small arm corresponding to the bucket, one end of the second pull rod is connected with the turntable at the position of the large arm, and the other end of the second pull rod is connected with the turntable at the position of the bucket.
Preferably, one end of the spring is connected with the vehicle body, and the other end of the spring is connected with the large arm.
Preferably, a position of the top end of the large arm corresponding to the armrest is provided with a limiting groove, and the armrest is connected with the large arm in a sliding manner through the limiting groove.
Preferably, one end of the bucket is fixedly connected with a transmission disc, a rotating hole is formed in the middle of the inner side of the transmission disc at the bucket, and the bucket is rotatably connected with a rotating shaft at the small arm through the rotating hole.
Preferably, the rubber sleeve is sleeved on the outer side of the handrail, and the input end of the replaceable electric drive gear box is electrically connected with the output end of the external power supply.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:
1. adopt motor drive structure, not only subtract a drive gear box and control scheme, practice thrift the cost, will control two circuits originally simultaneously, through the excavation of two motor drive gear box cooperations completions, the lifting, descend, topple over etc. complicated action, accomplish through a circuit that only needs control a motor drive gear box.
2. Adopt manual structure, not only subtracted driving gear case and control scheme, practice thrift the cost, will control a plurality of circuits originally simultaneously, through complicated actions such as excavation, lifting, decline and toppling over that motor drive gear case cooperation was accomplished, can accomplish through only needing controlling a manual pole and a handrail, not only further the cost is reduced has more increased children's interest of operation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the vehicle body of the present invention;
FIG. 3 is a schematic view of the installation structure of the rotating shaft of the present invention;
FIG. 4 is a schematic view of the installation structure of the pull rod hole of the present invention;
fig. 5 is a schematic view of the installation structure of the armrest of the present invention;
FIG. 6 is a schematic view of the installation structure of the damping body of the present invention;
reference numbers in the figures: 1. a vehicle body; 2. a large arm; 3. a small arm; 4. excavating a bucket; 5. a replaceable electric drive gearbox; 6. a lifting rod; 7. arranging a sheet; 8. a first pull rod; 9. a second pull rod; 10. A turntable; 11. a lever; 12. a first position limiting body; 13. a second position limiting body; 14. a drive body; 15. a transmission body; 16. a rotating shaft; 17. a draw bar hole; 18. a spring; 19. a manual lever; 20. A handrail; 21. a damping body; 22. damping marbles.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1: as shown in figures 1-4, the utility model provides a technical scheme, a digging arm linkage structure on a children toy car, which comprises a car body 1, a big arm 2 is rotationally connected at the top position of the outer side of the car body 1, a small arm 3 is rotationally connected at one end of the big arm 2, a bucket 4 is rotationally connected at one end of the small arm 3, a transmission disc is fixedly connected at one end of the bucket 4, a turntable 10 is arranged at the position of the small arm 3 corresponding to the bucket 4, one end of a second pull rod 9 is connected with the turntable 10 at the position of the big arm 2, the other end of the second pull rod 9 is connected with the turntable 10 at the position of the bucket 4, so as to conveniently dig sand, a rotary hole is arranged at the middle position of the inner side of the transmission disc at the bucket 4, the bucket 4 is rotationally connected with a rotary shaft 16 at the small arm 3 through the rotary hole so as to conveniently and quickly dig sand, a replaceable electric driving gear box 5 is arranged on the end surface of the inner side of the big arm 2, the power output end of the replaceable electric driving gear box 5 is fixedly connected with a swing piece 7, one side end face of the swing piece 7 is rotatably connected with the lifting rod 6, the other end of the lifting rod 6 is connected with the vehicle body 1, a lifting rotating shaft is rotatably embedded in the inner side of one end of the lifting rod 6, the lifting rod 6 is rotatably connected with the vehicle body 1 through the lifting rotating shaft, the large arm 2 is conveniently and quickly lifted, the other end face of the swing piece 7 is rotatably connected with a first pull rod 8, a rotary disc 10 is installed at the position, corresponding to the small arm 3, of the large arm 2, and one side end face of the rotary disc 10 is rotatably connected with a second pull rod 9;
a lever 11 is slidably connected to the inner side edge of the rotary table 10, an arc-shaped sliding groove is formed in the position, corresponding to the lever 11, of the inner side of the rotary table 10, the lever 11 is slidably connected with the rotary table 10 through the arc-shaped sliding groove, the transmission reaction speed is increased, a first limiting body 12 is fixedly installed at the position, corresponding to the rotary table 10, of one side end surface of the large arm 2, a second limiting body 13 is fixedly connected to the position, corresponding to the first limiting body 12, of the outer side of the rotary table 10, a driving body 14 is installed at the position, corresponding to the lever 11, of the small arm 3, a transmission body 15 is installed at the middle position of the inner side of the rotary table 10, a rotating shaft 16 is fixedly connected to one side end surface of the transmission body 15, a pull rod hole 17 is formed in the position, corresponding to the first pull rod 8, a pull rod rotating shaft is rotatably connected to the inner side of the pull rod hole 17, and the first pull rod 8 is connected with the rotary table 10 through the pull rod rotating shaft, so that the quick reaction of the force arm can improve the convenience in operation;
the small arm 3 is fixed on the large arm 2 through a rotatable shaft, and the large arm 2 is fixed on the vehicle body 1 through a rotatable shaft; the driving end is positioned on the large arm 2, and the driving end drives the two control ends to respectively control the movable joint between the large arm 2 and the vehicle body 1 and the movable joint between the small arm 3 and the large arm 2; the rotary table 10 is located at the joint of the large arm 2 and the small arm 3, the small arm 3 drives the rotary table 10 in a rotating mode, the rotary table 10 drives the bucket 4 to rotate through the second pull rod 9, one end of the second pull rod 9 which drives the bucket 4 to rotate is directly fixed on the large arm 2, through angle change of the large arm 2 and the small arm 3, the two ends of the second pull rod 9 are located at the positions of the large arm 2 and the bucket 4 to generate distance difference, and the bucket 4 is pulled to rotate.
Example 2: as shown in figures 5-6, the utility model provides a technical solution, a digging arm linkage structure on a children toy car, replacing an electric drive gear box 5, installing a handrail 20 at the corresponding position of the electric drive gear box 5 inside a big arm 2, arranging a limit groove at the top end of the big arm 2 corresponding to the handrail 20, the handrail 20 is connected with the big arm 2 through the limit groove in a sliding way, which is beneficial to controlling the big arm 2, a rubber sleeve is sleeved outside the handrail 20 to increase the comfort level of children holding, a spring 18 is fixedly connected between the car body 1 and the big arm 2, one end of the spring 18 is connected with the car body 1, the other end of the spring 18 is connected with the big arm 2, which is convenient to maintain the balance between the big arm 2 and the car body 1 through the spring 18, a hand lever 19 is fixedly installed outside the big arm 2, a damping body 21 is fixedly installed inside a turntable 10 positioned on the small arm 3, one end of the damping body 21 is fixedly connected with a damping marble 22, and the input end of the replaceable electric drive gear box 5 is electrically connected with the output end of an external power supply.
After the manual rod 19 is installed, when the excavating arm descends to excavate soil, the handrail 20 on the large arm 2 is pressed to descend the large arm 2, the manual rod 19 is pulled to drive the small arm 3 to rotate anticlockwise through the swinging piece 7 and the first pull rod 8, when the small arm 3 descends to a certain angle to approach the ground, the limiting body of the rotary table 10 and the limiting body on the large arm 2 are in interaction, the rotary table 10 cannot rotate, the end of the rotary table 10 of the first pull rod 8 is further fixed, the small arm 3 continues to rotate and descend, due to distance difference, the end of the second pull rod 9 pulls the excavating bucket 4 to rotate inwards to excavate the sandy soil, when the excavating arm is lifted, the large arm 2 slowly lifts under the action force of the spring 18, and the manual rod 19 is driven to drive the small arm 3 to rotate clockwise through the swinging piece 7 and the first pull rod 8; the excavator bucket 4 keeps an excavating state under the action of the damping piece, sand and soil are carried to rise, when the small arm 3 rotates upwards, the second pull rod 9 pushes the rotary table 10 to rotate clockwise under the action of the damping piece and the weight of the sand and soil, so that the limiting body is separated from the limiting body, the small arm 3 is lifted to a certain angle, the driving body 14 on the small arm 3 acts on the driving body 15 on the rotary table 10 through the lever 11, the rotary table 10 rotates reversely at a high speed, the excavator bucket 4 rotates reversely when the second pull rod 9 is driven, and then the sand and soil in the excavator bucket 4 are dumped.
The utility model discloses a theory of operation and use flow: firstly, when using electric drive, a big arm 2 is fixed on a vehicle body 1 through a rotating shaft 16 and can rotate 55 degrees around the rotating shaft 16, a small arm 3 is fixed on the big arm 2 through the rotating shaft 16 and can rotate 70 degrees around the rotating shaft 16, a bucket 4 is fixed on the small arm 3 through the rotating shaft 16 and can rotate 120 degrees around the rotating shaft 16, a replaceable electric drive gear box 5 is fixed in the big arm 2, a lifting rod 6 is connected with the vehicle body 1 through a swinging sheet 7 and is connected with the small arm 3 through a first pull rod 8, a rotary disc 10 is fixed at the joint of the big arm 2 and the small arm 3 and is concentric with the rotating shaft 16 of the big arm 2 and the small arm 3, the bucket 4 is connected through the first pull rod 8, a first limiting body 12 and a second limiting body 13 are arranged on the rotary disc 10, a transmission body 15 corresponds to the lever 11, the lever 11 is fixed on the rotating shaft 16 of the big arm 2 and can rotate around the rotating shaft 16, a second limiting body 13 is arranged on the big arm 2 and corresponds to the first limiting body 12 on the rotary disc 10, the driving body 14 corresponding to the lever 11 is arranged on the small arm 3, when the digging arm descends to dig soil, the electric driving gear box 5 can be replaced to reversely rotate 115 degrees, the lifting rod 6 is driven to descend, meanwhile, the swing piece 7 and the first pull rod 8 drive the small arm 3 to rotate anticlockwise, when the small arm 3 rotates, the bucket 4 and the second pull rod 9 are driven to rotate, the rotary table 10 is pulled to rotate, when the small arm 3 descends to 30 degrees to be close to the ground, the first limiting body 12 and the second limiting body 13 of the rotary table 10 are acted, the rotary table 10 can not rotate, the pull rod hole 17 at the end of the rotary table 10 of the second pull rod 9 is further fixed, the small arm 3 continues to rotate and descend, due to the distance difference, the bucket 4 end of the second pull rod 9 pulls the bucket 4 to rotate 120 degrees inwards to dig soil, when the digging arm is lifted, the electric driving gear box 5 can be replaced to normally rotate 120 degrees, when the digging arm is lifted, the swing piece 7 and the first lifting rod 8 drive the lifting rod 6 to lift the lifting rod 2 by 55 degrees, when the small arm 3 is driven to rotate clockwise, when the small arm 3 is lifted to 60 degrees, when the big arm 2 is lifted, the bucket 4 keeps a digging state under the action of the damping body 21 and carries sand to rise, when the small arm 3 rotates upwards, the second pull rod 9 pushes the rotary table 10 to rotate clockwise under the action of the damping body 21 and the weight of the sand, so that the first limiting body 12 and the second limiting body 13 are separated, when the small arm 3 rotates to 65 degrees, the driving body 14 on the small arm 3 acts on the transmission body 15 on the rotary table 10 through the lever 11, so that the rotary table 10 rotates reversely at a high speed, when the second pull rod 9 is driven, the bucket 4 rotates reversely 90, and then the sand in the bucket 4 is poured,
then, when manual driving is used, the large arm 2 is fixed on the vehicle body 1 through the rotating shaft 16 and can rotate around the rotating shaft 16, the small arm 3 is fixed on the large arm 2 through the rotating shaft 16 and can rotate around the rotating shaft 16 for a certain angle, the bucket 4 is fixed on the small arm 3 through the rotating shaft 16 and can rotate around the rotating shaft 16 for a certain angle, the handrail 20 is arranged on the outer wall of the large arm 2, the manual rod 19 and the spring 18 are fixed in the large arm 2, the large arm 2 is connected with the vehicle body 1 through the spring 18, the manual rod 19 can rotate, the small arm 3 is connected through the first pull rod 8, the turntable 10 is fixed at the joint of the large arm 2 and the small arm 3 and is concentric with the rotating shaft 16 of the large arm 2 and the small arm 3, the bucket 4 is connected through the second pull rod 9, the first limiting body 12 corresponds to the second limiting body 13, the transmission body 15 corresponds to the lever 11, the lever 11 is fixed on the rotating shaft 16 of the large arm 2, the excavator can rotate around a rotating shaft 16, a second limiting body 13 arranged on the large arm 2 corresponds to a first limiting body 12 on the rotary table 10, a driving body 14 corresponding to the lever 11 is arranged on the small arm 3, when the excavator arm is lifted, the large arm 2 is slowly lifted under the action of a spring 18, a manual rod 19 is driven to rotate clockwise through the swinging sheet 7 and the first pull rod 8, the small arm 3 is driven to be lifted to a certain angle, the driving body 14 on the small arm 3 acts on a transmission body 15 on the rotary table 10 through the lever 11, the rotary table 10 rotates reversely at a high speed, when the second pull rod 9 is driven, the excavator bucket 4 rotates reversely, then the sand and soil in the excavator bucket 4 are dumped, when the excavator arm descends and excavates soil, the handrail 20 on the large arm 2 is pressed to descend the large arm 2, the manual rod 19 is pulled to drive the small arm 3 to rotate anticlockwise through the swinging sheet 7 and the first pull rod 8, when the small arm 3 descends to a certain angle, the first limiting body 12 on the rotary table 10 and the second limiting body 13 on the large arm 2 act, the rotation of the turntable 10 is stopped, the end of the turntable 10 of the second pull rod 9 is fixed, the small arm 3 continues to rotate and descend, and due to the distance difference, the end of the bucket 4 of the second pull rod 9 pulls the bucket 4 to rotate inwards, so that the sandy soil is excavated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a dig arm linkage structure on children's toy car, includes automobile body (1), its characterized in that: a large arm (2) is rotatably connected to the top of the outer side of the vehicle body (1), a small arm (3) is rotatably connected to one end of the large arm (2), a bucket (4) is rotatably connected to one end of the small arm (3), a replaceable electric driving gear box (5) is mounted on the end face of the inner side of the large arm (2), a swing sheet (7) is fixedly connected to the power output end of the replaceable electric driving gear box (5), one end face of the swing sheet (7) is rotatably connected with a lifting rod (6), the other end face of the swing sheet (7) is rotatably connected with a first pull rod (8), a turntable (10) is mounted at the position, corresponding to the small arm (3), of the large arm (2), and a second pull rod (9) is rotatably connected to one end face of the turntable (10);
a lever (11) is connected to the inner side edge of the turntable (10) in a sliding manner, a first limiting body (12) is fixedly mounted at a position, corresponding to the turntable (10), of one side end face of the large arm (2), a second limiting body (13) is fixedly connected to a position, corresponding to the first limiting body (12), of the outer side of the turntable (10), a driving body (14) is mounted at a position, corresponding to the lever (11), of the small arm (3), a transmission body (15) is mounted at the middle position of the inner side of the turntable (10), a rotating shaft (16) is fixedly connected to one side end face of the transmission body (15), and a pull rod hole (17) is formed at a position, corresponding to the first pull rod (8), of the small arm (3);
the small arm (3) is fixed on the big arm (2) through the rotatable shaft, and the big arm (2) is fixed on the vehicle body (1) through the rotatable shaft; the driving end is positioned on the large arm (2), and the driving end drives the two control ends to respectively control the movable joint between the large arm (2) and the vehicle body (1) and the movable joint between the small arm (3) and the large arm (2); the turntable (10) is located at the joint of the large arm (2) and the small arm (3), the small arm (3) drives the turntable (10) to rotate, the turntable (10) drives the bucket (4) to rotate through the second pull rod (9), one end of the second pull rod (9) which drives the bucket (4) to rotate is directly fixed on the large arm (2), through the angle change of the large arm (2) and the small arm (3), the two ends of the second pull rod (9) are located at the positions of the large arm (2) and the bucket (4) to generate a distance difference, and the bucket (4) is pulled to rotate.
2. The linkage structure of the digging arm on the toy car for children as claimed in claim 1, wherein: the replaceable electric driving gear box (5) is replaced, a handrail (20) is installed at a position corresponding to the replaceable electric driving gear box (5) on the inner side of the large arm (2), a spring (18) is fixedly connected between the vehicle body (1) and the large arm (2), a manual rod (19) is fixedly installed on the outer side of the large arm (2), a damping body (21) is fixedly installed on the inner side of the turntable (10) located on the small arm (3), and one end of the damping body (21) is fixedly connected with a damping marble (22);
after the manual rod (19) is installed, when the digging arm descends to dig soil, the hand rest (20) on the big arm (2) is pressed to descend the big arm (2), the manual rod (19) is pulled to drive the small arm (3) to rotate anticlockwise through the swinging piece (7) and the first pull rod (8), when the small arm (3) descends to a certain angle to be close to the ground, the limiting body of the turntable (10) and the limiting body on the big arm (2) act mutually, so that the turntable (10) cannot rotate, thereby fixing the end of the rotary disc (10) of the first pull rod (8), the small arm (3) continuously rotates and descends, due to the distance difference, the end of the second pull rod (9) pulls the bucket (4) to rotate inwards to dig the sandy soil, when the digging arm is lifted, the large arm (2) is slowly lifted under the action of a spring, and the small arm (3) is driven to rotate clockwise by driving the manual rod (19) through the swinging piece (7) and the first pull rod (8); the excavator bucket (4) keeps an excavating state under the action of the damping piece, sand and soil are carried to rise, when the small arm (3) rotates upwards, the second pull rod (9) pushes the rotary table (10) to rotate positively along the trend under the action of the damping piece and the weight of the sand and soil, so that the first limiting body (12) is separated from the second limiting body (13), the small arm (3) is lifted to a certain angle, the driving body (14) on the small arm (3) acts on the transmission body (15) on the rotary table (10) through the lever (11), the rotary table (10) rotates reversely at a high speed, the excavator bucket (4) rotates reversely when the second pull rod (9) is driven, and then the sand and soil in the excavator bucket (4) are dumped.
3. The linkage structure of the digging arm on the toy car for children as claimed in claim 1, wherein: the inner side of the rotary table (10) is provided with an arc-shaped sliding groove at a position corresponding to the lever (11), and the lever (11) is connected with the rotary table (10) in a sliding manner through the arc-shaped sliding groove.
4. The linkage structure of the digging arm on the toy car for children as claimed in claim 1, wherein: the inner side of the pull rod hole (17) is rotatably connected with a pull rod rotating shaft, and the first pull rod (8) is connected with the rotary table (10) through the pull rod rotating shaft.
5. The linkage structure of the digging arm on the toy car for children as claimed in claim 2, wherein: the other end of lifting rod (6) is connected with automobile body (1), the inboard embedding of one end of lifting rod (6) has the jack-up pivot, jack-up rod (6) are connected with automobile body (1) rotation through the jack-up pivot.
6. The linkage structure of the digging arm on the toy car for children as claimed in claim 5, wherein: a turntable (10) is arranged at the position of the small arm (3) corresponding to the bucket (4), one end of the second pull rod (9) is connected with the turntable (10) at the position of the large arm (2), and the other end of the second pull rod (9) is connected with the turntable (10) at the position of the bucket (4).
7. The linkage structure of the digging arm on the toy car for children as claimed in claim 5, wherein: one end of the spring (18) is connected with the vehicle body (1), and the other end of the spring (18) is connected with the large arm (2).
8. The linkage structure of the digging arm on the toy car for children as claimed in claim 5, wherein: the position of the top end of the big arm (2) corresponding to the armrest (20) is provided with a limit groove, and the armrest (20) is connected with the big arm (2) in a sliding manner through the limit groove.
9. The linkage structure of the digging arm on the toy car for children as claimed in claim 5, wherein: one end of the bucket (4) is fixedly connected with a transmission disc, a rotating hole is formed in the middle of the inner side of the transmission disc at the bucket (4), and the bucket (4) is rotatably connected with a rotating shaft (16) at the small arm (3) through the rotating hole.
10. The linkage structure of the digging arm on the toy car for children as claimed in claim 5, wherein: the rubber sleeve is sleeved on the outer side of the handrail (20), and the input end of the replaceable electric drive gear box (5) is electrically connected with the output end of an external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120309802.6U CN214388890U (en) | 2021-02-03 | 2021-02-03 | Digging arm linkage structure on toy car for children |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120309802.6U CN214388890U (en) | 2021-02-03 | 2021-02-03 | Digging arm linkage structure on toy car for children |
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