CN117895710A - Heat radiation structure of front tooth rotary cultivator - Google Patents
Heat radiation structure of front tooth rotary cultivator Download PDFInfo
- Publication number
- CN117895710A CN117895710A CN202410075269.XA CN202410075269A CN117895710A CN 117895710 A CN117895710 A CN 117895710A CN 202410075269 A CN202410075269 A CN 202410075269A CN 117895710 A CN117895710 A CN 117895710A
- Authority
- CN
- China
- Prior art keywords
- motor
- rotary cultivator
- front tooth
- drainage tube
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims abstract description 27
- 238000009423 ventilation Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000003971 tillage Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/16—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs with special additional arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
Abstract
The invention provides a heat radiation structure of a front tooth rotary cultivator, and belongs to the field of rotary cultivator equipment. It has solved how to promote the radiating efficiency of this front tooth rotary cultivator. The utility model provides a heat radiation structure of front tooth rotary cultivator, including the actuating source and be located the rotary blade of actuating source below, the actuating source includes the casing and links to each other with the rotary blade, the motor is located the appearance intracavity of casing, be equipped with the air intake on the actuating source, its characterized in that is equipped with the drainage tube of middle narrow both sides width between motor and the rotary blade, the drainage tube middle part is equipped with the impeller that links firmly with the motor, the thermovent of casing both sides is linked together through the drainage tube, when the motor drives the impeller rotatory, hold the intracavity air and blow out from two thermovent through the space of motor. The motor drives the impeller to rotate, the air flow velocity in the narrow pipe is improved by utilizing the effect of the narrow pipe, and the pressure difference is formed, so that the air in the accommodating cavity passes through the gap of the motor and is discharged from the heat dissipation openings on two sides of the air, and the heat dissipation efficiency is improved.
Description
Technical Field
The invention belongs to the field of rotary cultivator equipment, and particularly relates to a heat radiation structure of a front tooth rotary cultivator.
Background
As a device for standard operation of agricultural machinery, the rotary cultivator is widely applied to agricultural production because of low operation difficulty and effective reduction of the growth of large soil to seeding and crops, wherein the common rotary cultivator comprises large rotary cultivator driven by a tractor to rotate by rotary blades and a handheld rotary cultivator driven by a motor and a battery, and the handheld rotary cultivator has smaller volume, so that the device is suitable for small-scale operation in the south of a relatively dispersed cultivated land, but because the motor and the battery respectively generate certain heat in the discharging and using processes, the motor and the battery can generate heat accumulation in the using process, and the normal operation of the front tooth rotary cultivator can be influenced for a long time.
In order to solve the above problems, in the prior art, a person skilled in the art generally sets a use time or sets a cooling fan on a rotary cultivator, and sets a controller on the cooling fan, and the control of the cooling capacity of the fan is completed through the controller, but because additional fans and controllers are required, heat is also generated in the use process, so that the cooling efficiency is lower.
Disclosure of Invention
The invention aims at solving the problems in the prior art, and provides a heat dissipation structure of a front tooth rotary cultivator, which aims at solving the technical problems that: how to improve the heat dissipation efficiency of the front tooth rotary cultivator.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a heat radiation structure of front tooth rotary cultivator, includes the actuating source and is located the rotary blade of actuating source below, the actuating source includes the casing and links to each other with the rotary blade, the motor is located the appearance intracavity of casing, be equipped with the air intake on the actuating source, its characterized in that, be equipped with the drainage tube of middle narrow both sides width between motor and the rotary blade, the drainage tube middle part is equipped with the impeller that links firmly with the motor, the thermovent of casing both sides is linked together through the drainage tube, works as when the motor drives the impeller rotation, hold the space that the intracavity air passed the motor and blow out from two thermovent.
The front tooth rotary cultivator mainly utilizes a motor to drive a rotary blade to rotate, so that the rotary blade can complete the working of cultivated land, a drainage tube is arranged between the motor and the rotary blade, the motor drives the rotary blade to rotate and simultaneously drives an impeller in the drainage tube to rotate, so that a certain air pressure difference is formed between the position of the impeller and a containing cavity, external air enters the containing cavity of the driving source from an air inlet on the driving source, passes through a gap of the motor to enter the drainage tube, the impeller is utilized to discharge the air from heat dissipation openings on two sides, the air in the containing cavity is influenced by the pressure difference and moves towards the direction of the impeller, and heat generated in the working of the motor and a battery in the driving source is taken away while flowing, because the cross-section of drainage tube is the wide shape in middle narrow both sides to when promoting the gas flow rate in the impeller that is arranged in the drainage tube middle part, increase exhaust gas and external area of contact, the inside steam of being convenient for can in time discharge, thereby promote the radiating efficiency of this front tooth rotary cultivator, because impeller links firmly with the motor, consequently when rotary blade rotates, impeller also can rotate simultaneously, and along with the change of motor rotational speed, the volume of the air of exhaust thermovent also can change, consequently no longer need additionally set up radiator fan and control radiator fan's controller, when simplifying the structure, promote the radiating efficiency of fan.
In the heat dissipation structure of the front tooth rotary cultivator, one end of the motor is connected with the rotary blade and the impeller, and the other end of the motor is provided with the guide groove which enables the containing cavity to be communicated with the drainage tube. Through setting up the guiding groove at the other end of motor to be convenient for guide the wind in holding the chamber, through the flow efficiency of air, thereby promote radiating efficiency.
In the heat radiation structure of the front tooth rotary cultivator, the drainage tube comprises flaring at two ends and a narrow pipe for accommodating the impeller, the flaring and the heat radiation opening are oppositely arranged, and the section width of the flaring is larger than the width of the narrow pipe. The flaring and the radiating opening are oppositely arranged, so that more gas can be carried out, the impeller is arranged in the narrow pipe with smaller size, the flow speed of discharged air can be further improved, and the radiating efficiency is improved.
In the heat dissipation structure of the front tooth rotary cultivator, the two flaring openings are connected through the narrow pipe, and the drainage pipe is S-shaped. The drainage tube is designed into an S shape, so that the size of the drainage tube is further reduced when the drainage tube is bent, the flow speed of exhaust gas is increased, and the heat dissipation efficiency is improved.
In the heat radiation structure of the front tooth rotary cultivator, the driving source further comprises a battery bin and a battery cover hinged with the battery bin, a holding part convenient to open is arranged at one end of the battery cover, a plurality of heat radiation grooves are formed in two sides of an installation cavity of the battery bin, the installation cavity is used for placing a battery pack, and the installation cavity is communicated with the containing cavity.
In the heat radiation structure of the front tooth rotary cultivator, the battery cover and the battery bin are matched to form the air inlet, and outside air enters and passes through the heat radiation groove and the guide groove from the heat radiation opening connected with the drainage tube. The air inlet is formed by matching the battery cover with the battery bin, so that sufficient air flows in the accommodating cavity to ensure heat dissipation efficiency.
In the heat radiation structure of the front tooth rotary cultivator, a control circuit board is arranged above the motor, a ventilation board is arranged on the upper cover of the control circuit board, and the holding part and the battery compartment are matched to form an opening. The outside air enters from the opening, passes through the ventilation plate, enters into the containing cavity, and is discharged outwards together with the air in the containing cavity through the impeller.
In the heat radiation structure of the front tooth rotary cultivator, a supporting wheel set and a control handrail positioned above the supporting wheel set are arranged behind the rotary cultivator blade, and a control switch is arranged on the control handrail.
Compared with the prior art, the invention has the following advantages:
1. the impeller is directly connected with the motor, and the impeller is rotated to be matched with the drainage tube, so that the air flow rate at the front end of the motor is improved, a pressure difference is formed between the drainage tube and the cavity, external air enters from an air inlet formed by the matching of the battery cover and the battery bin, part of the external air enters the cavity through the mounting cavity, the other part of the external air enters the cavity through the opening after flowing through the control circuit board through the ventilating board, when the motor drives the impeller to rotate, the air in the cavity passes through the gap of the motor to be blown out from two heat dissipation openings, and the drainage tube is composed of flaring and narrow pipes positioned at two sides, so that the contact area between the air flowing out and the external air can be further enlarged when the air is exhausted, the hot air can be conveniently and timely discharged, and the heat dissipation efficiency is improved.
2. The S-shaped drainage tube is divided into the two flaring openings which are opposite to the radiating openings and the narrow tube which is connected with the two flaring openings, and the impeller is arranged in the narrow tube, so that the air flow velocity in the drainage tube can be further accelerated by utilizing the narrow tube effect, the pressure difference between the drainage tube and the cavity is increased, and the radiating efficiency is improved.
Drawings
Fig. 1 is an exploded perspective view of the present embodiment;
FIG. 2 is a right side cross-sectional view of the present embodiment;
FIG. 3 is a schematic front sectional view of the present embodiment;
FIG. 4 is an enlarged partial schematic view of FIGS. 3 A-A;
FIG. 5 is an enlarged partial schematic view of FIG. 3B-B;
in the figure, 1, a driving source; 1a, a shell; 1a1, a cavity; 1a2, a heat dissipation port; 1b, a battery compartment; 1b1, a mounting cavity; 1b2, a heat dissipation groove; 1b3, a control circuit board; 1b4, ventilation board; 1c, a battery cover; 1c 1, a grip; 1d, an air inlet; 1d1, opening; 2. a rotary tillage cutter; 2a, a transmission shaft cover; 2a1, a transmission shaft; 2a2, worm gear; 3. a motor; 3a, a guide groove; 4. a drainage tube; 4a, a throat; 4b, flaring; 5. an impeller; 6. a battery pack; 7. a support wheel set; 8. a control armrest; 8a, controlling a switch; 9. and a baffle.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1 and 2, the front tooth rotary cultivator comprises a driving source 1 and rotary blades 2 positioned below the driving source 1, wherein the driving source 1 comprises a shell 1a, a motor 3 and a battery compartment 1b positioned at two sides, a mounting cavity 1b1 and a hinged battery cover 1c are covered above the battery compartment 1b, the battery cover 1c is mutually matched with the battery compartment 1b, the battery cover 1c is matched with the upper end face of the battery compartment 1b to form an air inlet 1d, a heat dissipation groove 1b2 is arranged at the side part of the mounting cavity 1b1, a motor 3 connected with the rotary blades 2 is arranged in front of the mounting cavity 1b1, a drainage tube 4 is arranged between the motor 3 and the rotary blades 2, an impeller 5 on an output shaft of the motor 3 is positioned in the middle of the drainage tube 4, a heat dissipation opening 1a2 oppositely arranged with the drainage tube 4 is arranged on the shell 1a, the two shells 1a are matched to form a cavity 1a1, the battery compartment 1b and the motor 3 are both positioned in the cavity 1a, and a guide groove 3a capable of being communicated with the cavity 1a1 is arranged at the top of the motor 3.
As shown in fig. 3, 4 and 5, a motor 3 in the middle of the rotary cultivator is connected with a rotary blade 2 through an output shaft, a drainage tube 4 and an impeller 5 in the middle of the drainage tube 4 are arranged between the motor 3 and the rotary blade 2, the drainage tube 4 comprises a narrow tube 4a in the middle and used for accommodating the impeller 5 and flaring 4b at two ends of the drainage tube 4, the flaring 4b is opposite to a heat dissipation opening 1a2 on two side shells 1a, and a cavity 1a1 formed by the two shells 1a and a battery compartment 1b is communicated with the outside through a guide groove 3a at the top of the motor 3, the impeller 5 and the drainage tube 4.
In summary, the most basic working principle in the present application is that the battery pack 6 in the driving source 1 is electrically connected with the motor 3 through the battery compartment 1b, so as to drive the rotary blade 2 to rotate by means of the motor 3 to perform rotary tillage operation, wherein, in order to promote the integrity of the driving source 1 and avoid dust entering, the two sides of the motor 3 and the battery compartment 1b are provided with the housing 1a, the battery compartment 1b and the two side housings 1a are matched to form the accommodating cavity 1a1 for accommodating the motor 3, the two housings 1a are provided with the heat dissipation openings 1a2, after the air in the accommodating cavity 1a1 can pass through the guide slot 3a at the top of the motor 3 and the gap of the motor 3, the air is discharged through the flares at the two sides of the drainage tube 4, so as to increase the contact area between the hot air and the external air, promote the heat dissipation efficiency, and divide the drainage tube 4 into the flares 4b positioned at the two ends and opposite to the heat dissipation openings 1a2 and the narrow tubes 4a for connecting the two flares 4b, the impeller 5 is fixedly connected to the output shaft of the motor 3, the motor 3 drives the rotary blade 2 to rotate, and simultaneously drives the impeller 5 to rotate so as to drive the air in the drainage tube 4 to flow, so that the outside air enters the drainage tube 4, wherein under the condition that the air enters from an air inlet formed by the cooperation between the battery cover and the battery bin and flows out from the heat dissipation port 1a2, the air flow rate in the narrow tube 4a is influenced by the narrow tube 4a to be greater than the air flow rate in the cavity 1a1, so that a low-pressure area is formed in the narrow tube 4a, the air in the cavity 1a1 is influenced by the pressure difference to pass through the guide groove 3a on the motor 3 and the gap in the motor 3 to enter the low-pressure area in the narrow tube 4a, and is discharged together through the two side flaring 4b on two sides and the flaring 4b in the drainage tube 4 is arranged opposite to the heat dissipation port 1a2 on the two shells 1a, the air-cooling device can enlarge the contact area between the discharged air and the outside by using the flaring 4b, so that the heat-dissipating efficiency is improved, as the impeller 5 is fixed on the motor 3, the holding part 1c 1 of the battery bin 1b and the battery cover 1c are mutually matched to form the air inlet 1d, part of the air entering from the air inlet 1d enters the accommodating cavity 1a1 through the heat-dissipating grooves 1b2 on two sides of the mounting cavity 1b1, then is discharged through the heat-dissipating openings 1a2 on two sides, and the other part of the air enters from the opening 1d1 formed by the matching of the holding part 1c 1 and the battery bin 1b, enters the accommodating cavity 1a1 through the gap between the plate of the control circuit 1b3 and the battery bin 1b, then passes through the guide groove 3a on the motor 3 together with the air flowing through the battery bin 1b, and is discharged through the drainage tube 4 and the heat-dissipating openings 1a2, so that the heat in the circulation can be normally used, and simultaneously, the air flows through the battery pack 6 and the motor 3 and the opening 1d formed by matching the holding part with the holding part 1b, the air in the circulation can effectively drive the motor 3, and the heat-dissipating efficiency is improved, and the heat-dissipating efficiency is also improved, and the heat-dissipating efficiency is improved, and the heat efficiency can be prevented from being accumulated more than the inside the motor 3.
Wherein, the rear of rotary blade 2 is equipped with support wheelset 7 and is located the control handrail 8 of support wheelset 7 top, control switch 8a and motor on the control handrail 8 pass through the control circuit board electricity and are connected, link to each other through transmission shaft 2a1 that has the worm and the worm wheel 2a2 that links firmly with rotary blade 2 between motor and the rotary blade 2, wherein, the axis of worm sets up with the axis looks perpendicular of worm wheel 2a2, rotary blade 2 top is equipped with baffle 9, this front tooth rotary cultivator is by rotary blade 2 that is fixed in on the baffle 9, actuating source 1, support wheelset 7 and control handrail 8 combination form, actuating source 1 and control handrail 8 are located baffle 9 top, rotary blade 2 and support wheelset 7 are located baffle 9 below, rotary blade 2 links to each other with baffle 9 through drive shaft cover 2a with baffle 9.
When a user holds the control handrail 8 and turns on the control switch 8a on the control handrail 8, the output shaft of the motor drives the transmission shaft 2a1 with the worm to rotate so as to drive the worm wheel 2a2 meshed with the worm, drive the rotary tillage cutter 2 fixed on the worm wheel 2a2 to rotate, provide a forward component force when in operation, thereby driving the front tooth rotary cultivator to move forward and ensuring the stability of the front tooth rotary cultivator through the supporting wheel group 7 positioned at the rear.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although 1, the drive source is used more herein; 1a, a shell; 1a1, a cavity; 1a2, a heat dissipation port; 1b, a battery compartment; 1b1, a mounting cavity; 1b2, a heat dissipation groove; 1b3, a control circuit board; 1b4, ventilation board; 1c, a battery cover; 1c 1, a grip; 1d, an air inlet; 1d1, opening; 2. a rotary tillage cutter; 2a, a transmission shaft cover; 2a1, a transmission shaft; 2a2, worm gear; 3. a motor; 3a, a guide groove; 4. a drainage tube; 4a, a throat; 4b, flaring; 5. an impeller; 6. a battery pack; 7. a support wheel set; 8. a control armrest; 8a, controlling a switch; 9. baffle plate, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (8)
1. The utility model provides a heat radiation structure of front tooth rotary cultivator, includes actuating source (1) and rotary blade (2) that are located actuating source (1) below, actuating source (1) include casing (1 a) and motor (3) that link to each other with rotary blade (2), motor (3) are located holding chamber (1 a 1) of casing (1 a), be equipped with the air intake on the actuating source, a serial communication port, be equipped with drainage tube (4) of middle narrow both sides width between motor (3) and rotary blade (2), drainage tube (4) middle part is equipped with impeller (5) that link firmly with motor (3), thermovent (1 a 2) of casing (1 a) both sides are linked together through drainage tube (4), works as when motor (3) drive impeller (5) rotate, the air in holding chamber (1 a 1) is blown out from two thermovent (1 a 2) through the space of motor (3).
2. The front tooth rotary cultivator according to claim 1, wherein the drainage tube (4) comprises flares (4 b) at two ends and a narrow tube (4 a) for accommodating the impeller (5), the flares (4 b) are arranged opposite to the heat dissipation port (1 a 2), and the cross-sectional width of the flares (4 b) is larger than the width of the narrow tube (4 a).
3. The front tooth rotary cultivator according to claim 1, wherein one end of the motor (3) is connected with the rotary blade (2) and the impeller (5), and the other end is provided with a guide groove (3 a) which enables the containing cavity (1 a 1) to be communicated with the drainage tube (4).
4. A front tooth rotary cultivator as claimed in claim 3, characterized in that the two flares (4 b) are connected by a throat (4 a) and the draft tube (4) is S-shaped.
5. The front tooth rotary cultivator according to claim 1, wherein the driving source (1) further comprises a battery compartment (1 b) and a battery cover (1 c) hinged with the battery compartment (1 b), a holding part (1 c 1) which is convenient to open is arranged at one end of the battery cover (1 c), a plurality of heat dissipation grooves (1 b 2) are formed in two sides of a mounting cavity (1 b 1) of the battery compartment (1 b), and the mounting cavity (1 b 1) is used for placing a battery pack (6).
6. The front tooth rotary cultivator according to claim 5, wherein the battery cover (1 c) and the battery compartment (1 b) are matched to form an air inlet (1 d), external air enters from the air inlet (1 d) and passes through the heat dissipation groove (1 b 2) and the guide groove (3 a) is discharged from the heat dissipation opening (1 a 2) connected with the drainage tube (4).
7. The front tooth rotary cultivator of claim 6, wherein a control circuit board (1 d 3) is arranged above the motor (3), a ventilation board (1 d 4) is arranged on the upper cover of the control circuit board (1 d 3), and the holding part (1 c 1) is matched with the battery compartment (1 b) to form an opening (1 d 1).
8. The front tooth rotary cultivator of claim 1, wherein a supporting wheel set (7) and a control handrail (8) arranged above the supporting wheel set (7) are arranged behind the rotary cultivator blade (2), and a control switch (8 a) is arranged on the control handrail (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410075269.XA CN117895710A (en) | 2024-01-18 | 2024-01-18 | Heat radiation structure of front tooth rotary cultivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410075269.XA CN117895710A (en) | 2024-01-18 | 2024-01-18 | Heat radiation structure of front tooth rotary cultivator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117895710A true CN117895710A (en) | 2024-04-16 |
Family
ID=90647149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410075269.XA Pending CN117895710A (en) | 2024-01-18 | 2024-01-18 | Heat radiation structure of front tooth rotary cultivator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117895710A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119344017A (en) * | 2024-12-03 | 2025-01-24 | 浙江周立实业有限公司 | A micro tiller |
-
2024
- 2024-01-18 CN CN202410075269.XA patent/CN117895710A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119344017A (en) * | 2024-12-03 | 2025-01-24 | 浙江周立实业有限公司 | A micro tiller |
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