CN204275488U - A kind of toy digging machine with electric pushrod - Google Patents
A kind of toy digging machine with electric pushrod Download PDFInfo
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- CN204275488U CN204275488U CN201420701655.7U CN201420701655U CN204275488U CN 204275488 U CN204275488 U CN 204275488U CN 201420701655 U CN201420701655 U CN 201420701655U CN 204275488 U CN204275488 U CN 204275488U
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- electric pushrod
- forearm
- induction
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Abstract
The utility model relates to a kind of toy digging machine with electric pushrod, comprise large arm, forearm and bucket; one end and the bucket of forearm are rotationally connected; the other end and large arm are rotationally connected; it is characterized in that; large arm and forearm junction are provided with the first electric pushrod, forearm and bucket junction are provided with the second electric pushrod; Be provided with intelligent-induction device group in large arm, intelligent-induction device group is connected with master control IC plate, and master control IC plate is connected with driving motor; First electric pushrod is connected with intelligent-induction device group, and controls forearm operation; Second electric pushrod is connected with master control IC plate, and controls bucket operation; Intelligent-induction device group can respond to the change in location of large arm, forearm and bucket.The utility model is highly sensitive, long service life, security performance are high, Based Intelligent Control is easy to operation.
Description
Technical field
The utility model relates to a kind of toy, is specifically related to a kind of toy digging machine with electric pushrod.
Background technology
Toy digging machine is the toy that children and vast model fan like, in existing toy digging machine, owing to not having stopping means, easily cause accidental injury, the loaded down with trivial details link of linkage is numerous, and sensitivity is not high.Because transmission device is all plastics, easily wear and tear in power transmission shaft two ends, toy is short for service life.And often cause toy to damage because overload transfinites.Use hydraulic push rod in existing toy digging machine, the excessive control of strength is complicated, easily causes unsafe conditions to occur.
Utility model content
For solving the problem, technical problem to be solved in the utility model is to provide a kind of toy digging machine with electric pushrod, and easily control, power is moderate, and security increases greatly.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of toy digging machine with electric pushrod, comprise large arm, forearm and bucket, one end and the described bucket of described forearm are rotationally connected, the other end and described large arm are rotationally connected, it is characterized in that, described large arm and described forearm junction are provided with the first electric pushrod, and described forearm and described bucket junction are provided with the second electric pushrod; Be provided with intelligent-induction device group in described large arm, described intelligent-induction device group is connected with master control IC plate, and described master control IC plate is connected with driving motor;
Described first electric pushrod is connected with described intelligent-induction device group, described master control IC plate respectively, and controls the operation of described forearm; Described second electric pushrod is connected with described master control IC plate, and controls the operation of described bucket;
Described intelligent-induction device group can respond to the change in location of described large arm, forearm and bucket.
On the basis of technique scheme, the utility model can also do following improvement:
Further, described first electric pushrod comprises the first swivel nut, the first screw rod, the first push rod urceolus and the first push-rod electric machine; Described first swivel nut one end and the second connecting plate be located on described forearm wall outer surface are rotationally connected, and the other end is screwed up by screw thread mutually with described first screw rod; Described first screw rod is fixedly connected with described first push-rod electric machine away from one end of described first swivel nut, described first push-rod electric machine is connected with the end in described first push rod urceolus end face by jackscrew screw, is rotationally connected outside described first push rod urceolus end face with the first connecting plate be located on described large arm wall outer surface; Described first swivel nut stretches in described first push rod urceolus by screwing up with described first screw rod; Described first push-rod electric machine is connected with master control IC plate.
Adopt the beneficial effect of above-mentioned further scheme to be the intelligent operation that the first electric pushrod controls forearm, be easy to control forearm and capture, increase forearm bearing capacity, be convenient to maintenance.
Further, described second electric pushrod comprises the second swivel nut, the second screw rod, the second push rod urceolus and the second push-rod electric machine; Be rotationally connected by buffer board between described second swivel nut one end and described bucket, the other end is screwed up by screw thread mutually with described second screw rod; Described second screw rod is fixedly connected with described second push-rod electric machine away from one end of described second swivel nut, described second push-rod electric machine is connected with the end in described second push rod urceolus end face by jackscrew screw, is rotationally connected outside described second push rod urceolus end face with described second connecting plate; Described second swivel nut stretches in described second push rod urceolus by screwing up with described second screw rod; Described second push-rod electric machine is connected with master control IC plate; Forearm wall outer surface is provided with limited block, and described limited block can stop described second electric pushrod over run.
Adopt the beneficial effect of above-mentioned further scheme to be that the second electric pushrod assists forearm push rod to control the intelligent operation of grab bucket, increase the crawl amount of grab bucket, control grab bucket automatic capturing, greatly enhance toy sensitivity and recreational; When bucket weight capacity exceeds tolerance range, master control IC plate detects that running current is excessive, can cut off the second push-rod electric machine power supply in time, makes digging machine stop capturing.
Further, described intelligent-induction device group comprises large arm induction installation and forearm induction installation, and described large arm induction installation is connected with master control IC plate respectively with described forearm induction installation; Described first electric pushrod is connected with described forearm induction installation.
Further, described large arm induction installation comprises an IC plate and the first induction gear group, and a described IC plate to be located at below described first induction gear group and to be fixed in described large arm sidewall, and is connected with master control IC plate by circuit; Described first induction gear group is provided with magnetic-inductive device, and a described IC plate can respond to the change in location of described magnetic-inductive device; Described driving motor controls described first induction gear group and runs.
Further, described forearm induction installation comprises the 2nd IC plate and the second induction gear group, and described 2nd IC plate to be located at below described second induction gear group and to be fixed in described large arm sidewall, and is connected with master control IC plate by circuit; Described second induction gear group is provided with magnetic-inductive device, and described 2nd IC plate can respond to the change in location of described magnetic-inductive device; Described first electric pushrod controls described second induction gear group and runs.
Further, described first induction gear group comprises the first gear and the 3rd gear, and described first gear is connected with described 3rd gear drive by some intermeshing equipment gears; Described second induction gear group comprises the second gear and the 4th gear, and described second gear is connected with described 4th gear drive by some intermeshing equipment gears; Described 3rd gear is driven by described driving motor.
Further, described first gear, described second gear, described 3rd gear, described 4th gear and described equipment gear, be rotationally connected respectively by rotating shaft and described large arm.
Further, described magnetic-inductive device is magnetic head, comprises the first magnetic head and the second magnetic head, and described first magnetic head is fixed on also can along with the magnetic induction region of the described IC plate of described first pinion rotation turnover on described first gear; Described second magnetic head is fixed on also can along with the magnetic induction region of the described 2nd IC plate of described second pinion rotation turnover on described second gear.
The beneficial effect of above-mentioned further scheme is adopted to be when large arm swing exceeds stroke, first magnetic head can be followed the first gear and be entered magnetic induction district, master control IC plate receives signal and reacts in time and cut off driving motor power supply, large arm is stopped swinging, prevents the large arm excess of stroke from causing damage; When little arm swing exceeds stroke, the second magnetic head can be followed the second gear and be entered magnetic induction district, and master control IC plate receives signal and to react in time cut-out first push-rod electric machine power supply, forearm is stopped swinging, prevents the forearm excess of stroke from causing damage.
Further, be provided with connecting rod in described forearm sidewall to rent, described connecting rod is rented and is comprised some connecting rods, be rotationally connected between connecting rod described in each, described connecting rod group initiating terminal is connected with described second pinion rotation, and end is rotationally connected by the rotating shaft and described forearm being located at described forearm side wall inner surfaces.
Adopt the beneficial effect of above-mentioned further scheme to be the stability of described connecting rod group when strengthening little arm swing, connecting rod is rotationally connected each other, adds the linkage of the rotation between forearm and bucket.Described master control IC plate is except accepting magnetic induction signal and judging; Also have and each motor operating current size is judged, when motor operating current exceeds normal operating value certain limit, provide signal cut feeding electric motors, prevent motor overload from causing damage; Also control motor by the controlling run time normally to run, prevent fortuitous event and occur.The multi-level security of operation of protection toy and the safety of operator, improve the security of toy.
The beneficial effects of the utility model are: the utility model is highly sensitive, long service life, security performance are high, Based Intelligent Control is easy to operation.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the first electric pushrod structural representation in the utility model;
Fig. 3 is the second electric pushrod structural representation in the utility model;
Fig. 4 is intelligent-induction apparatus structure schematic diagram in the utility model.
In accompanying drawing, the list of parts representated by each label is as follows:
1, large arm, 2, forearm, 3, bucket, 4, driving motor, 5, one IC plate, 6, 2nd IC plate, 7, master control IC plate, 8, first gear, 9, second gear, 10, 3rd gear, 11, 4th gear, 12, first magnetic head, 13, second magnetic head, 14, limited block, 15, first electric pushrod, 15-1, first swivel nut, 15-2, first screw rod, 15-3, first push rod urceolus, 15-4, first push-rod electric machine, 16, second electric pushrod, 16-1, second swivel nut, 16-2, second screw rod, 16-3, second push rod urceolus, 16-4, second push-rod electric machine, 17, first connecting plate, 18, second connecting plate, 19, buffer board.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of toy digging machine with electric pushrod, comprise large arm 1, forearm 2 and bucket 3, one end and the described bucket 3 of described forearm 2 are rotationally connected, the other end and described large arm 1 are rotationally connected, described large arm 1 and described forearm 2 junction are provided with the first electric pushrod 15, and described forearm 2 and described bucket 3 junction are provided with the second electric pushrod 16; Be provided with intelligent-induction device group in described large arm 1, described intelligent-induction device group is connected with master control IC plate 7, and described master control IC plate 7 is connected with driving motor 4; Described master control IC plate 7 can be arranged on toy car.
Described first electric pushrod 15 is connected with described intelligent-induction device group, master control IC plate 7 respectively, and controls described forearm 2 and run; Described second electric pushrod 16 is connected with described master control IC plate 7, and controls described bucket 3 and run;
Described intelligent-induction device group can respond to position and the curent change of described large arm 1, forearm 2 and bucket 3, feeds back on master control IC plate 7 in time, sends by master control IC plate the start and stop that information controls motor.
As shown in Figure 2, described first electric pushrod 15 comprises the first swivel nut 15-1, the first screw rod 15-2, the first push rod urceolus 15-3 and the first push-rod electric machine 15-4; Described first swivel nut 15-1 one end and the second connecting plate 18 be located on described forearm wall outer surface are rotationally connected, and the other end is screwed up by screw thread mutually with described first screw rod 15-2; Described first screw rod 15-2 is fixedly connected with described first push-rod electric machine 15-4 away from one end of described first swivel nut 15-1, described first push-rod electric machine 15-4 is connected with the end in described first push rod urceolus 15-3 end face by jackscrew screw, is rotationally connected outside described first push rod urceolus 15-3 end face with the first connecting plate 17 be located on described large arm wall outer surface; Described first swivel nut 15-1 stretches in described first push rod urceolus 15-3 by screwing up with described first screw rod 15-2.As startup first push-rod electric machine 15-4, the first push-rod electric machine 15-4 starts to rotate and drives the first screw rod 15-2 be fixedly connected with it to rotate, and now the first swivel nut 15-1 is just released by straight line or regains, and drives forearm 2 to start to swing; Described first push-rod electric machine 15-4 is connected with master control IC plate 7.
As shown in Figure 3, described second electric pushrod 16 comprises the second swivel nut 16-1, the second screw rod 16-2, the second push rod urceolus 16-3 and the second push-rod electric machine 16-4; Be rotationally connected by buffer board 19 between described second swivel nut 16-1 one end and described bucket 3, the other end is screwed up by screw thread mutually with described second screw rod 16-2; Described second screw rod 16-2 is fixedly connected with described second push-rod electric machine 16-4 away from one end of described second swivel nut 16-1, described second push-rod electric machine 16-4 is connected with the end in described second push rod urceolus 16-3 end face by jackscrew screw, is rotationally connected outside described second push rod urceolus 16-3 end face with described second connecting plate 17; Described second swivel nut 16-1 stretches in described second push rod urceolus 16-3 by screwing up with described second screw rod 16-2; Described second push-rod electric machine 16-4 is connected with master control IC plate 7; Forearm 2 wall outer surface is provided with limited block 14, and described limited block 14 can stop described second electric pushrod 16 over run.As startup second push-rod electric machine 16-4, the second push-rod electric machine 16-4 starts to rotate and drives the second screw rod 16-2 be fixedly connected with it to rotate, and now the second swivel nut 16-1 is just released by straight line or regains, and bucket 3 starts running.
First electric pushrod 15 and the Operational Mechanisms of the second electric pushrod 16 and the mechanism of action of ball-screw similar, all that just rotary motion converts linear movement to, or change torque axis into axial repeated action power, have high accuracy, invertibity and high efficiency feature concurrently simultaneously.
As shown in Figure 4, described intelligent-induction device group comprises large arm induction installation and forearm induction installation, and described large arm induction installation is connected with master control IC plate 7 respectively with described forearm induction installation; Described first electric pushrod 15 is connected with described forearm induction installation.
Described large arm induction installation comprises IC plate 5 and a first induction gear group, and a described IC plate 5 to be located at below described first induction gear group and to be fixed in described large arm 1 sidewall, and is connected with master control IC plate 7 by circuit; Described first induction gear group is provided with magnetic-inductive device, and a described IC plate 5 can respond to the change in location of described magnetic-inductive device; Described driving motor 4 controls described first induction gear group and runs.
Described forearm induction installation comprises the 2nd IC plate 6 and the second induction gear group, and described 2nd IC plate 6 to be located at below described second induction gear group and to be fixed in described large arm 1 sidewall, and is connected with master control IC plate 7 by circuit; Described second induction gear group is provided with magnetic-inductive device, and described 2nd IC plate 6 can respond to the change in location of described magnetic-inductive device; Described first electric pushrod 15 controls described second induction gear group and runs.
Described first induction gear group comprises the first gear 8 and the 3rd gear 10, and described first gear 8 is in transmission connection by some intermeshing equipment gears and described 3rd gear 10; Described second induction gear group comprises the second gear 9 and the 4th gear 11, and described second gear 9 is in transmission connection by some intermeshing equipment gears and described 4th gear 11; Described 3rd gear 10 is driven by described driving motor 4.
Described first gear 8, described second gear 9, described 3rd gear 10, described 4th gear 11 and described equipment gear, be rotationally connected respectively by rotating shaft and described large arm 1.
Described magnetic-inductive device is magnetic head, comprises the first magnetic head 12 and the second magnetic head 13, and described first magnetic head 12 is fixed on described first gear 8 also can rotate along with described first gear 8 the magnetic induction region passing in and out a described IC plate 5; Described second magnetic head 13 is fixed on described second gear 9 also can rotate along with described second gear 9 the magnetic induction region passing in and out described 2nd IC plate 6.When power is initiated, driving motor 4 controls the 3rd gear 10 to start to rotate, large arm 1 is driven to operate, when large arm 1 swing up and down scope exceed safety travel time, now the first magnetic head 12 enters an IC plate 5 magnetic induction district, one IC plate 5 sends signal, cuts off driving motor 4 power supply after master control IC plate 7 receives signal, and large arm 1 is stopped swinging; First push-rod electric machine 15-4 controls the first electric pushrod 15 setting in motion, control forearm 2 to operate; forearm 2 swings up and down scope when exceeding safety travel; now the second magnetic head 13 enters the 2nd IC plate 6 magnetic induction district; the 2nd IC plate 6 sends signal; cut off the first push-rod electric machine 15-4 power supply after master control IC plate 7 receives signal, forearm 2 is shut down; Because the second push-rod electric machine 16-4 is connected with master control IC plate, bucket 3 is driven to operate when the second push-rod electric machine 16-4 controls the second electric pushrod 16, when the weight of object that bucket 3 captures exceeds tolerance range, master control IC plate 7 detects that running current is excessive, can cut off the second push-rod electric machine 16-4 power supply.
The mechanism of action of intelligent-induction device group herein and master control IC plate is Hall switch principle, and when one block of alive metal or wafer are vertically placed in magnetic field, the two ends of thin slice will produce potential difference, and this phenomenon is just called Hall effect.
Hall switch just belongs to this active magnetoelastic transducer part, it is on the basis of Hall effect principle, integration packaging and packaging technology is utilized to be made, it can convert magnetic input signal to the signal of telecommunication in practical application easily, possesses again the requirement of the easy to operate and reliability of industrial occasions practical application simultaneously.
The input of Hall switch characterizes with magnetic induction density B, and when B value reaches certain degree, the trigger upset of Hall switch inside, the output level state of Hall switch also overturns thereupon.Output generally adopts transistor to export, and proximity switch similar have NPN, PNP, open type, closed type, latch-type bipolarity, dual signal output point.
Hall switch has non-contact electric, low-power consumption, long life, response frequency high, and the inner epoxy resin envelope that adopts fills with integralization, so can work reliably under all kinds of adverse circumstances.Hall switch can be applicable to proximity switch, pressure switch, mileometer etc., as a kind of novel electrical accessorie.
As shown in Figure 4, connecting rod group is provided with in described forearm 2 sidewall, described connecting rod group comprises some connecting rods, be rotationally connected between connecting rod described in each, described connecting rod group initiating terminal and described second gear 9 are rotationally connected, and end is rotationally connected by the rotating shaft and described forearm 2 being located at described forearm 2 side wall inner surfaces.Described connecting rod group strengthens stability when forearm 2 swings, and connecting rod is rotationally connected each other, adds the linkage of the rotation between forearm 2 and bucket 3.
Described second electric pushrod 16 is controlled by the second push-rod electric machine 16-4, controls bucket 3 automatic capturing, greatly enhances toy sensitivity and recreational.
Described master control IC plate 7 and an IC plate 5, the 2nd IC plate 6, driving motor 4, first push-rod electric machine 15-4, the second push-rod electric machine 16-4 make signal reaction in time, and then control associated components and accept large arm 1, forearm 2, the position signalling of bucket 3 and load information simultaneously, thus prevent toy digging machine excess load, overrun.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. the toy digging machine with electric pushrod, comprise large arm (1), forearm (2) and bucket (3), one end and the described bucket (3) of described forearm (2) are rotationally connected, the other end and described large arm (1) are rotationally connected, it is characterized in that, described large arm (1) and described forearm (2) junction are provided with the first electric pushrod (15), and described forearm (2) and described bucket (3) junction are provided with the second electric pushrod (16); Be provided with intelligent-induction device group in described large arm (1), described intelligent-induction device group is connected with master control IC plate (7), and described master control IC plate (7) is connected with driving motor (4);
Described first electric pushrod (15) is connected with described intelligent-induction device group, described master control IC plate (7) respectively, and controls described forearm (2) operation; Described second electric pushrod (16) is connected with described master control IC plate (7), and controls described bucket (3) operation;
Described intelligent-induction device group can respond to the change in location of described large arm (1), forearm (2) and bucket (3).
2. a kind of toy digging machine with electric pushrod according to claim 1, it is characterized in that, described first electric pushrod (15) comprises the first swivel nut (15-1), the first screw rod (15-2), the first push rod urceolus (15-3) and the first push-rod electric machine (15-4); Described first swivel nut (15-1) one end and the second connecting plate (18) be located on described forearm wall outer surface are rotationally connected, and the other end is screwed up by screw thread mutually with described first screw rod (15-2); Described first screw rod (15-2) is fixedly connected with described first push-rod electric machine (15-4) away from one end of described first swivel nut (15-1), described first push-rod electric machine (15-4) is connected with the end in described first push rod urceolus (15-3) end face by jackscrew screw, is rotationally connected outside described first push rod urceolus (15-3) end face with the first connecting plate (17) be located on described large arm wall outer surface; Described first swivel nut (15-1) is stretched in described first push rod urceolus (15-3) by screwing up with described first screw rod (15-2); Described first push-rod electric machine (15-4) is connected with master control IC plate (7).
3. a kind of toy digging machine with electric pushrod according to claim 2, it is characterized in that, described second electric pushrod (16) comprises the second swivel nut (16-1), the second screw rod (16-2), the second push rod urceolus (16-3) and the second push-rod electric machine (16-4); Be rotationally connected by buffer board (19) between described second swivel nut (16-1) one end and described bucket (3), the other end is screwed up by screw thread mutually with described second screw rod (16-2); Described second screw rod (16-2) is fixedly connected with described second push-rod electric machine (16-4) away from one end of described second swivel nut (16-1), described second push-rod electric machine (16-4) is connected with the end in described second push rod urceolus (16-3) end face by jackscrew screw, is rotationally connected outside described second push rod urceolus (16-3) end face with described second connecting plate (18); Described second swivel nut (16-1) is stretched in described second push rod urceolus (16-3) by screwing up with described second screw rod (16-2); Described second push-rod electric machine (16-4) is connected with master control IC plate (7); Forearm (2) wall outer surface is provided with limited block (14), and described limited block (14) can stop described second electric pushrod (16) over run.
4. a kind of toy digging machine with electric pushrod according to any one of claims 1 to 3, it is characterized in that, described intelligent-induction device group comprises large arm induction installation and forearm induction installation, and described large arm induction installation is connected with master control IC plate (7) respectively with described forearm induction installation; Described first electric pushrod (15) is connected with described forearm induction installation.
5. a kind of toy digging machine with electric pushrod according to claim 4, it is characterized in that, described large arm induction installation comprises an IC plate (5) and the first induction gear group, a described IC plate (5) to be located at below described first induction gear group and to be fixed in described large arm (1) sidewall, and is connected with master control IC plate (7) by circuit; Described first induction gear group is provided with magnetic-inductive device, and a described IC plate (5) can respond to the change in location of described magnetic-inductive device; Described driving motor (4) controls described first induction gear group and runs.
6. a kind of toy digging machine with electric pushrod according to claim 5, it is characterized in that, described forearm induction installation comprises the 2nd IC plate (6) and the second induction gear group, described 2nd IC plate (6) to be located at below described second induction gear group and to be fixed in described large arm (1) sidewall, and is connected with master control IC plate (7) by circuit; Described second induction gear group is provided with magnetic-inductive device, and described 2nd IC plate (6) can respond to the change in location of described magnetic-inductive device; Described first electric pushrod (15) controls described second induction gear group and runs.
7. a kind of toy digging machine with electric pushrod according to claim 6, it is characterized in that, described first induction gear group comprises the first gear (8) and the 3rd gear (10), and described first gear (8) is in transmission connection by some intermeshing equipment gears and described 3rd gear (10); Described second induction gear group comprises the second gear (9) and the 4th gear (11), and described second gear (9) is in transmission connection by some intermeshing equipment gears and described 4th gear (11); Described 3rd gear (10) is driven by described driving motor (4).
8. a kind of toy digging machine with electric pushrod according to claim 7, it is characterized in that, described first gear (8), described second gear (9), described 3rd gear (10), described 4th gear (11) and described equipment gear, be rotationally connected respectively by rotating shaft and described large arm (1).
9. a kind of toy digging machine with electric pushrod according to claim 7, it is characterized in that, described magnetic-inductive device is magnetic head, comprise the first magnetic head (12) and the second magnetic head (13), described first magnetic head (12) is fixed on described first gear (8) above also can along with the magnetic induction region of the described IC plate (5) of described first gear (8) rotation turnover; Described second magnetic head (13) is fixed on described second gear (9) above also can along with the magnetic induction region of the described 2nd IC plate (6) of described second gear (9) rotation turnover.
10. a kind of toy digging machine with electric pushrod according to claim 7, it is characterized in that, connecting rod group is provided with in described forearm (2) sidewall, described connecting rod group comprises some connecting rods, be rotationally connected between connecting rod described in each, described connecting rod group initiating terminal and described second gear (9) are rotationally connected, and end is rotationally connected by the rotating shaft and described forearm (2) being located at described forearm (2) side wall inner surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701655.7U CN204275488U (en) | 2014-11-20 | 2014-11-20 | A kind of toy digging machine with electric pushrod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701655.7U CN204275488U (en) | 2014-11-20 | 2014-11-20 | A kind of toy digging machine with electric pushrod |
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| Publication Number | Publication Date |
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| CN204275488U true CN204275488U (en) | 2015-04-22 |
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| CN201420701655.7U Expired - Fee Related CN204275488U (en) | 2014-11-20 | 2014-11-20 | A kind of toy digging machine with electric pushrod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265894A (en) * | 2020-02-18 | 2020-06-12 | 长沙师范学院 | Intelligent toy with monitoring function |
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- 2014-11-20 CN CN201420701655.7U patent/CN204275488U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265894A (en) * | 2020-02-18 | 2020-06-12 | 长沙师范学院 | Intelligent toy with monitoring function |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20191120 |