CN111436417B - Mother car of greenhouse pesticide spraying machine - Google Patents
Mother car of greenhouse pesticide spraying machine Download PDFInfo
- Publication number
- CN111436417B CN111436417B CN202010381773.4A CN202010381773A CN111436417B CN 111436417 B CN111436417 B CN 111436417B CN 202010381773 A CN202010381773 A CN 202010381773A CN 111436417 B CN111436417 B CN 111436417B
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- trolley
- frame
- wheel
- rotating shaft
- approach
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- 238000005507 spraying Methods 0.000 title claims abstract description 61
- 239000000575 pesticide Substances 0.000 title claims abstract description 42
- 210000000078 claw Anatomy 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 239000008141 laxative Substances 0.000 claims description 6
- 230000002475 laxative effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000003137 locomotive effect Effects 0.000 claims description 2
- 239000003814 drug Substances 0.000 abstract description 11
- 239000000126 substance Substances 0.000 description 13
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 235000013311 vegetables Nutrition 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003630 growth substance Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
- Agricultural Machines (AREA)
Abstract
The invention relates to a greenhouse pesticide spraying machine mother vehicle, which comprises: the trolley bridge approach device comprises a trolley frame, a trolley bridge approach device and a trolley bridge, wherein the trolley frame is connected with the trolley bridge approach device through a first rotating shaft in a rotating mode; the frame is provided with a trolley bearing platform; the trolley bridge approach control mechanism comprises a wheel with gear teeth, a claw for controlling the wheel and a control device for enabling the trolley bridge approach to be lifted, wherein the wheel is fixedly connected with the first rotating shaft or the wheel is installed on the frame and is in transmission connection with the first rotating shaft through a speed changing device, the first rotating shaft is fixedly connected with the trolley bridge approach, the claw is arranged on the frame and is connected with a linkage device, and the pesticide spraying trolley is controlled by the linkage device to be clamped with or separated from the claw. The invention reduces the volume and weight of the mother car of the medicine spraying car, saves the cost, saves energy and protects the environment.
Description
Technical Field
The invention relates to the technical field of pesticide spraying mechanical equipment, in particular to a mother car of a pesticide spraying machine suitable for being used in a greenhouse.
Background
With the progress of agricultural planting technology, greenhouse planting can produce out-of-season vegetables and other products due to the influence of unlimited seasons and climate temperatures, and gradually replaces the traditional planting mode, so that the greenhouse planting method has become one of the main planting means of current farmers in China; however, the pest control in the greenhouse needs to frequently spray pesticides, the application period is short, and the application of various growth regulators and foliar fertilizers causes the most heavy and healthy work of vegetable farmers due to the spraying of the pesticides and the spraying of the greenhouse.
The manual pesticide spraying has high labor intensity and low efficiency, is unfavorable for realizing scientific greenhouse planting, so people always want to replace the machine, but because the planting space of the greenhouse is limited, the ground is not smooth enough, people can only pass through the ground marginally, and the pesticide spraying machine with slightly larger volume cannot work normally in the greenhouse .
Chinese patent No. 110547279A discloses a greenhouse pesticide spraying machine, which comprises a mother car and a pesticide spraying trolley, wherein the mother car of the pesticide spraying machine walks on a greenhouse main road, and the pesticide spraying trolley can walk among ridges. When the chemical spraying machine is used, the mother trolley is stopped at one end of a ridge, the large chemical bucket stores the chemical amount for the whole greenhouse, the chemical amount for one or more rows of vegetables is stored in the chemical box of the trolley, the mother trolley is completely separated from the chemical spraying trolley, the chemical spraying trolley is small in volume, the chemical liquid can be sucked on the large chemical bucket of the mother trolley for multiple times, then the chemical spraying is carried out row by row between ridges of the greenhouse, the greenhouse does not need to be modified or auxiliary equipment or rails are added, the problem that a common chemical spraying machine encounters in the practical application of the greenhouse is solved, the effect is ideal, the chemical spraying machine is convenient to move, and the chemical spraying machine is more suitable for being used among different greenhouses in turn. Because the main road in the greenhouse is always higher than other positions in the greenhouse for reasons such as keeping dry and hardening and paving the track, a part of the main road is always higher than other positions in the greenhouse, a small obvious step is formed by some arrangement, the height of the mother car is added, and the pesticide spraying trolley is difficult to smoothly travel onto the mother car, so that a small ramp is needed for guiding the pesticide spraying trolley up and down, the edge of the trolley bearing platform of the mother car is provided with a trolley bridge approach for guiding the trolley to go up and down the trolley bearing platform, but the trolley bridge approach is electrically controlled by a motor or a battery and the like, not only the volume of the mother car is increased, but also the weight is increased, and because the relative height of each ridge of each furrow in the greenhouse and the mother car is different, the angle of each lowering of the trolley bridge approach is different, the difficulty of a sensing control system and the cost of the pesticide spraying machine are greatly increased, and the pesticide spraying machine is not beneficial to carrying and moving between different greenhouses.
Disclosure of Invention
Aiming at the defects, the technical problems to be solved by the invention are as follows: the parent car of the greenhouse pesticide spraying machine is provided to simplify the bridge approach control mechanism of the trolley and reduce the cost of the bridge approach control mechanism of the trolley.
In order to solve the technical problems, the technical scheme of the invention is as follows:
A greenhouse laxative locomotive, comprising: the trolley comprises a trolley frame, wherein the trolley frame is connected with a trolley approach bridge through a first rotating shaft in a rotating mode.
The frame is provided with a trolley bearing platform.
The trolley bridge approach control mechanism comprises a wheel with gear teeth, a claw for controlling the wheel and a control device for enabling the trolley bridge approach to be lifted, wherein the wheel is fixedly connected with the first rotating shaft or the wheel is installed on the frame and is in transmission connection with the first rotating shaft through a speed changing device, the first rotating shaft is fixedly connected with the trolley bridge approach, the claw is arranged on the frame and is connected with a linkage device, and the pesticide spraying trolley is controlled by the linkage device to be clamped with or separated from the claw.
Preferably, the linkage device comprises the trolley bearing platform, the trolley bearing platform is rotationally connected with the frame through a second rotating shaft, an elastic supporting device is arranged between the trolley bearing platform and the frame, and the claw is controlled by the trolley bearing platform.
Preferably, the trolley bearing platform is provided with a chute, one end of the claw is provided with a pin shaft, and the pin shaft is slidably arranged in the chute.
The linkage also includes a spring for retaining the pawl in engagement with the wheel.
Preferably, the wheel is a ratchet or gear and the pawl is a pawl or catch.
Preferably, the speed change device comprises a first gear and a second gear which are meshed with each other, the first gear is integrally arranged with or fixedly connected with the wheel, and the second gear is fixedly connected with the first rotating shaft.
Preferably, the control device is a torsion spring.
Preferably, the edge of the trolley approach bridge is hinged with a movable extension plate.
Preferably, the first rotating shaft and the second rotating shaft are the same shaft.
Preferably, the frame is a frame having a foldable structure.
After the technical scheme is adopted, the invention has the beneficial effects that:
1) The frame of the parent car of the pesticide spraying machine is connected with the trolley approach bridge through the trolley approach bridge control mechanism, when the pesticide spraying trolley drives away from the trolley bearing platform, the pesticide spraying trolley directly collides with the trolley approach bridge, after the trolley approach bridge reaches the ground, the pesticide spraying trolley drives away from the trolley bearing platform, and the claw supports against the wheels under the linkage action of the linkage device, so that the trolley approach bridge stays on the ground; when the medicine spraying trolley drives onto the trolley bearing platform, the medicine spraying trolley presses down the trolley bearing platform, the claw is lifted, the wheel is not propped, the trolley approach bridge is lifted under the action of the control device, the medicine spraying machine mother vehicle can advance, electric control elements such as a motor or a battery are not needed, the energy is saved, the environment is protected, the volume and the weight of the medicine spraying machine mother vehicle are greatly reduced, and the cost of the medicine spraying machine is reduced.
2) The wheel is installed on the frame and is in transmission connection with the first rotating shaft through a speed changing device, and the speed changing device is additionally arranged between the wheel and the first rotating shaft, so that the travel is increased by a plurality of times, and the overturning angle of the approach bridge of the trolley can be better controlled by each gear tooth.
3) The edge of the trolley approach bridge is hinged with the movable extension plate, so that the trolley approach bridge has a certain movable range, and when the trolley approach bridge rebounds, the movable extension plate can still be better attached to the ground, and the trolley is convenient to spray the medicine and move upwards.
4) The parent car frame of laxative machine sets up to the frame of beta structure, is provided with the braces, can fold back one's back, and convenient laxative machine removes, carries between in different big-arch shelter, has avoided the problem that the inconvenient removal of cause such as ground inequality or removal difficulty.
Drawings
FIG. 1 is a schematic diagram of the structure of a spray cart on a cart carrier platform according to the present invention;
FIG. 2 is a schematic view of the structure of the present invention when the spray cart leaves the cart carrying platform;
FIG. 3 is a schematic diagram of the overall structure of one embodiment of a parent cart of a greenhouse laxative machine of the present invention;
FIG. 4 is a schematic overall structure of another embodiment of a parent truck of a greenhouse pesticide sprayer of the invention;
FIG. 5 is a schematic structural view of a frame folding state of a mother car of the greenhouse medicine spraying car of the invention;
FIG. 6 is a schematic diagram of a connection between the carriage bearing platform and the carriage approach bridge according to the present invention;
FIG. 7 is a schematic diagram of the structure of a bridge approach of a trolley installed on two sides of a frame of a greenhouse pesticide spraying vehicle;
FIG. 8 is a schematic diagram of another connection between the carriage bearing platform and the carriage approach of the present invention;
FIG. 9 is a schematic illustration of the wheel of the present invention coupled to a first axle through a transmission;
FIG. 10 is a schematic view of the structure of the articulated movable extension plate of the trolley approach bridge;
In the figure: the device comprises a 1-frame, a 2-first rotating shaft, a 3-trolley approach bridge, a 4-second rotating shaft, a 5-trolley bearing platform, a 6-elastic supporting device, a 7-trolley approach bridge control mechanism, 71-wheels, 72-claws, 73-control devices, 74-first gears, 75-second gears, 8-sliding grooves, 9-pin shafts, 10-mother vehicles, 11-pesticide spraying trolleys, 12-main roads, 13-ridge ridges, 14-hinge shafts, 15-fixed pins and 16-movable extension plates.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 to 3, a greenhouse pesticide spraying machine mother vehicle includes: the frame 1 and the frame 1 are rotatably connected with the trolley approach bridge 3 through the first rotating shaft 2, because the main road 12 in the greenhouse is always higher than other positions in the greenhouse by a part for keeping dry and hardening and paving the track, and the height of the trolley 10 is also higher, the trolley 11 is difficult to smoothly travel on the trolley 10, and therefore, a small ramp is required for guiding the trolley 11 up and down, and therefore, the trolley approach bridge 3 for guiding the trolley 11 to move up and down the trolley 10 is arranged on the trolley 10.
The frame 1 is provided with a trolley carrying platform 5.
The mother car 10 is further provided with a trolley approach control mechanism 7, the trolley approach control mechanism 7 comprises a wheel 71 with gear teeth, a claw 72 for controlling the wheel 71 and a control device 73 for enabling the trolley approach 3 to be lifted, and the trolley approach 3 can be lifted better when the pesticide spraying trolley 11 drives onto the trolley bearing platform 5 under the action of the control device 73. The wheel 71 is fixedly connected to the first rotating shaft 2 or the wheel 71 is rotatably arranged on the frame 1 and is in transmission connection with the first rotating shaft 2 through a speed changing device, and the arrangement of the speed changing device enables the stroke of the wheel 71 to be increased by a plurality of times, so that the overturning angle of the trolley approach bridge 3 is better controlled; the first rotating shaft 2 is fixedly connected with the trolley approach bridge 3, the claw 72 is arranged on the frame 1, the claw 72 is connected with a linkage device, and the pesticide spraying trolley 11 is clamped with or separated from the wheel 71 through the linkage device control claw 72.
The linkage device comprises a trolley bearing platform 5, the trolley bearing platform 5 is rotationally connected with the frame 1 through a second rotating shaft 4, an elastic supporting device 6 is arranged between the trolley bearing platform 5 and the frame 1, and the claw 72 is controlled by the trolley bearing platform 5.
The trolley bearing platform 5 is provided with a chute 8, one end of each claw 72 is provided with a pin shaft 9, the pin shafts 9 are slidably arranged in the chute 8, and the trolley bearing platform 5 has a certain linkage effect on the claws 72 through the chute 8.
The linkage also comprises a spring for enabling the claw 72 to be clamped with the wheel 71, the claw 72 is not connected with the trolley bearing platform 5, but after the medicine spraying trolley 11 is driven away from the trolley bearing platform 5, the trolley bearing platform 5 is lifted under the action of the elastic supporting device 6, and the claw 72 automatically butts against the wheel 71 through the elasticity of the spring.
The elastic supporting device 6 can be a reed, and is more practical and convenient.
Wheel 71 is a ratchet or gear and pawl 72 is a pawl or catch.
As shown in fig. 9, the speed change device comprises a first gear 74 and a second gear 75 which are meshed with each other, the first gear 74 is integrally arranged or fixedly connected with the wheel 71, the second gear 75 is fixedly connected with the first rotating shaft 2, and the speed change device is arranged between the wheel 71 and the first rotating shaft 2, so that the stroke can be increased by many times, and the overturning angle of the trolley approach bridge 3 can be better controlled.
The control device 73 is a torsion spring, and when the pesticide spraying trolley 11 runs back to the trolley bearing platform 5, the torsion spring can drive the trolley approach bridge 3 to lift, and the trolley approach bridge 3 can be provided with a damping device.
As shown in fig. 10, the edge of the trolley approach bridge 3 is hinged with a movable extension plate 16, because each gear tooth of the wheel 71 controls the trolley approach bridge 3 to have a certain free stroke, the edge of the trolley approach bridge 3 can possibly tilt a certain height again after contacting with the ground, which is unfavorable for the smooth return of the spraying trolley 11 to the trolley bearing platform 5, so the edge of the trolley approach bridge 3 is hinged with the movable extension plate 16, which has a certain movable range, and when the trolley approach bridge 3 rebounds, the movable extension plate 16 can still be attached to the ground, thereby facilitating the upward running of the spraying trolley 11 back to the trolley bearing platform 5.
As shown in fig. 6, the trolley approach bridge 3 is arranged on one side of the frame 1 of the mother car of the greenhouse pesticide spraying machine, the first rotating shaft 2 and the second rotating shaft 4 are the same shaft, and the trolley approach bridge 3 and the trolley bearing platform 5 share the same shaft, so that the device is more convenient, simple and practical.
Example two
As shown in fig. 4 and 5, the frame 1 of the parent car of the greenhouse pesticide spraying machine is a frame with a foldable structure, the frame 1 is provided with a hinge shaft 14 and a fixing pin 15, the hinge shaft 14 can fold the frame 1, the fixing pin 15 can fix the frame 1, and a brace is arranged, so that the frame 1 can be folded when being carried in different greenhouses, and then a person can carry the frame on his back, thereby being convenient to move.
As shown in fig. 7, the trolley approach bridge 3 is arranged on two sides of the frame 1 of the mother car of the greenhouse pesticide spraying machine, so as to adapt to pesticide spraying work of crops on different sides in the greenhouse, and the trolley approach bridge 3 can be arranged on two sides of the frame 1 at the same time, so that the greenhouse pesticide spraying machine is more convenient. In the actual use process, the mounting positions can be reserved on the two sides of the frame 1 of the parent car 10, and the trolley approach bridge 3 can change the mounting sides according to actual conditions so as to be suitable for operation requirements in different directions in a greenhouse.
Example III
As shown in fig. 3 and 8, the first rotating shaft 2 and the second rotating shaft 4 are two shafts arranged in parallel, and the trolley bearing platform 5 is rotatably connected with the frame 1 through the second rotating shaft 4, so that a certain linkage action is provided for the claw 72, and the other is the same as the first embodiment.
Example IV
As shown in fig. 4, 5 and 6, the frame 1 of the mother car of the greenhouse pesticide spraying machine is a frame with a foldable structure, the trolley approach bridge 3 is arranged on one side of the frame 1, and the first rotating shaft 2 and the second rotating shaft 4 are the same shaft.
The trolley approach bridge 3 and the trolley bearing platform 5 are subjected to anti-skid treatment.
The trolley approach bridge 3 is arranged in a dustpan shape, and certain tilting is arranged at the edge of the trolley approach bridge, so that the pesticide spraying trolley 11 can be smoothly guided to a determined position.
The track gauge of the wheels of the mother car 10 of the medicine spraying machine can be adjusted by moving the installation position, wherein two wheels on one side can still have a certain axial movement space after being adjusted, so that the wheels can be slightly adjusted in a less standard track, and the mother car of the medicine spraying machine can move in a main track of a greenhouse.
The control device 73 may be a magnetic device.
The linkage may be a rod or a plate linked with the claw 72, and the spraying trolley 11 directly touches the rod or the plate to control the wheel 71 by the claw 72, in which case the trolley carrying platform 5 does not need to be rotationally connected with the frame 1, and the trolley carrying platform 5 is fixed.
The linkage may also be an induction device, and the claw 72 senses that the spraying trolley 11 is lifted by electric power after driving back to the trolley bearing platform 5 through the induction device.
The foregoing is illustrative of the best mode of carrying out the invention, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the invention is defined by the claims, and any equivalent transformation based on the technical teaching of the invention is also within the protection scope of the invention.
Claims (5)
1. A greenhouse laxative locomotive, comprising:
The trolley bridge approach device comprises a trolley frame, a trolley bridge approach device and a trolley bridge, wherein the trolley frame is connected with the trolley bridge approach device through a first rotating shaft in a rotating mode; it is characterized in that the method comprises the steps of,
The trolley approach control mechanism comprises a wheel with a plurality of gear teeth, a claw for controlling the wheel and a control device for enabling the trolley approach to be lifted, wherein the wheel is fixedly connected with the first rotating shaft or the wheel is installed on the frame and is in transmission connection with the first rotating shaft through a speed changing device, the first rotating shaft is fixedly connected with the trolley approach, the claw is hinged on the frame and is connected with a linkage device, the pesticide spraying trolley controls the claw to be clamped with or separated from the wheel through the linkage device, the wheel is a ratchet wheel or a gear, the claw is a pawl or a stop piece, and the control device is a torsion spring;
The linkage device comprises a trolley bearing platform, the trolley bearing platform is rotationally connected with the frame through a second rotating shaft, an elastic supporting device is arranged between the trolley bearing platform and the frame, the claw is controlled by the trolley bearing platform, the trolley bearing platform is provided with a sliding groove, one end of the claw is provided with a pin shaft, and the pin shaft is slidably arranged in the sliding groove;
the first rotating shaft and the second rotating shaft are the same shaft.
2. A greenhouse laxative parent vehicle in accordance with claim 1, wherein said linkage further comprises a spring for retaining said pawl in engagement with said wheel.
3. A greenhouse pesticide spraying mother vehicle as claimed in claim 1, wherein the speed change device comprises a first gear and a second gear which are meshed with each other, the first gear is integrally arranged or fixedly connected with the wheel, and the second gear is fixedly connected with the first rotating shaft.
4. A greenhouse pesticide spraying machine mother vehicle as claimed in claim 1, wherein the edge of the trolley approach bridge is hinged with a movable extension plate.
5. A greenhouse pesticide sprayer mother vehicle in accordance with claim 1, wherein the frame is a foldable frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381773.4A CN111436417B (en) | 2020-05-08 | 2020-05-08 | Mother car of greenhouse pesticide spraying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381773.4A CN111436417B (en) | 2020-05-08 | 2020-05-08 | Mother car of greenhouse pesticide spraying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111436417A CN111436417A (en) | 2020-07-24 |
| CN111436417B true CN111436417B (en) | 2024-05-03 |
Family
ID=71657511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010381773.4A Active CN111436417B (en) | 2020-05-08 | 2020-05-08 | Mother car of greenhouse pesticide spraying machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111436417B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106361A (en) * | 1998-10-15 | 2000-08-22 | Creata International Ltd. | Remotely controlled toy vehicle |
| TW408673U (en) * | 1999-06-22 | 2000-10-11 | Han Tai Kang | Multi-purpose industrual robot |
| CN109944121A (en) * | 2017-12-21 | 2019-06-28 | 中车沈阳机车车辆有限公司 | Ballast track sleeper paving is changed trains and Ballast track sleeper paving changes method |
| CN110547279A (en) * | 2019-09-30 | 2019-12-10 | 孙树飞 | Greenhouse pesticide sprayer and pesticide spraying trolley thereof |
| CN212087772U (en) * | 2020-05-08 | 2020-12-08 | 孙树飞 | Big-arch shelter laxative machine mother's car |
-
2020
- 2020-05-08 CN CN202010381773.4A patent/CN111436417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106361A (en) * | 1998-10-15 | 2000-08-22 | Creata International Ltd. | Remotely controlled toy vehicle |
| TW408673U (en) * | 1999-06-22 | 2000-10-11 | Han Tai Kang | Multi-purpose industrual robot |
| CN109944121A (en) * | 2017-12-21 | 2019-06-28 | 中车沈阳机车车辆有限公司 | Ballast track sleeper paving is changed trains and Ballast track sleeper paving changes method |
| CN110547279A (en) * | 2019-09-30 | 2019-12-10 | 孙树飞 | Greenhouse pesticide sprayer and pesticide spraying trolley thereof |
| CN212087772U (en) * | 2020-05-08 | 2020-12-08 | 孙树飞 | Big-arch shelter laxative machine mother's car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111436417A (en) | 2020-07-24 |
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