CN111480444A - Blind-plugging double-flange-face external insertion line grass mowing head - Google Patents
Blind-plugging double-flange-face external insertion line grass mowing head Download PDFInfo
- Publication number
- CN111480444A CN111480444A CN202010460652.9A CN202010460652A CN111480444A CN 111480444 A CN111480444 A CN 111480444A CN 202010460652 A CN202010460652 A CN 202010460652A CN 111480444 A CN111480444 A CN 111480444A
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- wire
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- 244000025254 Cannabis sativa Species 0.000 title claims abstract description 55
- 238000003780 insertion Methods 0.000 title claims description 4
- 230000037431 insertion Effects 0.000 title claims description 4
- 238000004804 winding Methods 0.000 claims abstract description 49
- 238000005192 partition Methods 0.000 claims abstract description 47
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000013213 extrapolation Methods 0.000 claims 7
- 238000005520 cutting process Methods 0.000 description 22
- 230000007547 defect Effects 0.000 description 5
- 238000010009 beating Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- KJLPSBMDOIVXSN-UHFFFAOYSA-N 4-[4-[2-[4-(3,4-dicarboxyphenoxy)phenyl]propan-2-yl]phenoxy]phthalic acid Chemical compound C=1C=C(OC=2C=C(C(C(O)=O)=CC=2)C(O)=O)C=CC=1C(C)(C)C(C=C1)=CC=C1OC1=CC=C(C(O)=O)C(C(O)=O)=C1 KJLPSBMDOIVXSN-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/416—Flexible line cutters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/416—Flexible line cutters
- A01D34/4166—Mounting or replacement of the lines
Abstract
The invention discloses a blind-plugged double-flange-face external inserting line grass mowing head which comprises a fastening cover and a base component which are connected with each other, wherein a line outgoing block is arranged on the base component; the base assembly is provided with a fixed mounting part matched with the motor output shaft, the knocking winding assembly is sleeved on the inner side of the fixed mounting part, and a spring is arranged between the fixed mounting part and the knocking winding assembly, so that the knocking winding assembly can move on the base assembly; the knocking winding assembly comprises a knocking head, a winding starting cover, a channel middle partition plate and a channel lower partition plate, wherein the channel middle partition plate is arranged between the winding starting cover and the channel lower partition plate, and a lead channel is formed after the winding starting cover and the channel middle partition plate are combined; a wire containing cavity communicated with the wire channel is formed between the channel lower partition plate and the channel middle partition plate.
Description
Technical Field
The invention relates to the technical field of garden machinery, in particular to a blind-plugged double-flange-face outer inserting line grass mowing head.
Background
The grass trimmer is a common garden tool, and the main principle of the grass trimmer is that a motor or an engine is used for driving a grass trimming head to rotate at a high speed. The flexible cutting line is wound on the spool, the spool is accommodated in the grass cutting head, the end part of the flexible cutting line extends out of the hole in the grass cutting head shell, and when the grass cutting head rotates at a high speed, the flexible cutting line also rotates at a high speed along with the grass cutting head shell, so that the cutting effect is realized.
At present, the grass cutting head on the market generally comprises reel subassembly, grass cutting head fastening cover, grass cutting head sliding seat, play line piece, slip lid, and it often has following defect:
1. the winding wheel assembly is fixedly connected with the output shaft of the motor, the grass mowing head fastening cover and the grass mowing head movable seat are not fixed, and the natural inertia is large under the condition of high-speed rotation due to the large volume of the grass mowing head fastening cover and the grass mowing head movable seat, so that the vibration and the noise are large;
2. reel assemblies are 2-part assemblies, and one of the parts is provided with an insert, so that it is difficult to ensure the concentricity of the insert and the reel during the production injection molding process; moreover, the reel is used as the fixed grass mowing head, the internal structure design is complex, the line capacity is small, and the guide design of the internal channel is unreasonable, so that the grass mowing rope with a thin diameter cannot be externally inserted and installed well;
3. the winding wheel assembly and the knocking head assembly are independent parts, the structure is complex, the connection is not firm enough, and the production cost is high;
4. the wire outlet hole on the wire outlet block is generally a rectangular hole or a circular hole, and because the center of the grass beating rope needs to deviate from the center of the wire outlet hole when the grass beating head is knocked, when the grass beating head moves up and down, the wire outlet block with the structure can cause easy wire clamping, cannot normally outlet wires and influences use.
5. No positioning is arranged between the sliding cover and the gasket, and the gasket is difficult to ensure to be concentric with the sliding cover, so that the rotary inertia is large, and large vibration and noise are generated.
Due to the above problems, there is a need for improvement.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a blind-plugging double-flange-face external inserting line grass cutting head which is simple in structure, compact in design and convenient to assemble and can effectively overcome the defects pointed out in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows: the outer plug-in line grass mowing head with the blind-plugged double flange surfaces comprises a fastening cover and a base assembly which are connected with each other, wherein a line outlet block is arranged on the base assembly, and the outer plug-in line grass mowing head also comprises a knocking winding assembly arranged in the fastening cover and the base assembly, and the knocking winding assembly is formed by integrally combining the knocking winding assembly;
the base assembly is provided with a fixed mounting part matched with the output shaft of the motor, the knocking winding assembly is sleeved on the inner side of the fixed mounting part, and a spring is arranged between the fixed mounting part and the knocking winding assembly, so that the knocking winding assembly can move on the base assembly;
the knocking winding assembly comprises a knocking head, a winding starting cover, a channel middle partition plate and a channel lower partition plate, wherein the channel middle partition plate is arranged between the winding starting cover and the channel lower partition plate, and a lead channel is formed after the winding starting cover and the channel middle partition plate are combined;
and a wire accommodating cavity communicated with the wire channel is formed between the channel lower partition plate and the channel middle partition plate.
In the above technical scheme, further, the channel intermediate baffle comprises a plurality of annular uniformly distributed baffle blocks, preferably 3, and a plurality of guides are arranged on the channel on the baffle block, wherein the guides can be a combination of a chamfer guide, a right-angle guide and a linear guide.
In the technical scheme, furthermore, a plurality of inclined guide plates are arranged on the channel middle partition plate and are communicated with the wire accommodating cavity and the wire channel, so that the grass mowing rope can be inserted into the channel middle partition plate from the wire outlet block and then extends out from the other wire outlet block along the inclined guide plates.
In the technical scheme, the knocking winding assembly further comprises a sliding cover and a flat washer, a bearing is pressed on the knocking head, a boss is arranged on the inner side of the sliding cover, the boss is inserted into an inner hole of the bearing and can be rotatably connected with the knocking head, a screw and the flat washer are arranged on one side, away from the sliding cover, of the knocking head, and the screw penetrates through the flat washer and is locked on the boss of the sliding cover; the reel starts and covers the outer lane and is provided with the sloping block of annular equipartition, the sloping block with the inboard lug formation locking cooperation of fastening the lid.
In the above technical solution, further, the outlet hole of the outlet block installed on the base component is a longitudinally-arranged oblong hole.
Among the above-mentioned technical scheme, further, be equipped with the buckle on the straining lid, be equipped with the draw-in groove on the base subassembly.
Among the above-mentioned technical scheme, further, be equipped with the buckle on the base subassembly, be equipped with the draw-in groove on the straining lid.
The invention has the beneficial effects that:
1. the internal channel of the grass cutting head is formed by combining 2 or more than 2 parts, so that the mould complexity of the original channel is simplified, the process manufacturing level is improved, and the grass cutting head is favorable for large-scale production;
2. the base assembly of the grass mowing head is used as a fixed part and is connected with the output shaft of the motor, so that the defects of large vibration and large noise caused by high-speed rotation can be overcome;
3. the design of the outgoing line block is more reasonable: the outer side surface of the outlet block adopts a longitudinally-arranged long round hole, so that the design is more in line with the actual working state, and the grass mowing rope is not easy to break off from the inside of the grass mowing head, so that the situation that the grass cannot continue to work is caused;
4. the reel and the knocking head form a rigid whole, so that the internal structure is simplified on the premise of realizing the same effect, the whole structure is compact, the positioning is good, the assembly is simple, the integrity is strong, and the free shaking is avoided;
5. the wire guide channel on the reel is formed by a plurality of parts, three guide channels are annularly distributed, the blind wire inserting effect and experience feeling are improved, the wire guide groove on the reel is not separated from the middle, the wire guide groove of the reel is intensively designed on one part of the reel locking cover, and steps caused by dislocation when the upper cover and the lower cover are combined when the wire guide groove is separated from the middle are eliminated, so that a grass cutting rope is not easy to pass;
6. the long-distance linear guide is specially designed on the wire guide channel of the reel, so that the deformation of the grass mowing rope can be avoided, and the insertion and the passing of the grass mowing rope are facilitated;
7. the sliding cover and the gasket are positioned, so that the concentricity of the sliding cover and the gasket can be ensured, and the defects of large vibration and noise caused by large moment of inertia are overcome.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the fastening cover, the knocking wire winding assembly and the base assembly of the present invention.
Fig. 2 is an exploded view of the overall structure of the present invention.
Fig. 3 is a schematic view of the structure of a single spacer block of the present invention.
Fig. 4 is a schematic structural diagram of a channel intermediate partition formed by 3 partition blocks of the invention.
In the drawing, 1, a fastening cover, 2, a sliding cover, 3, a large cap screw, 4, a bearing, 5, a knocking head, 6, a flat washer, 7, a screw, 8, a reel starting cover, 9, a self-tapping screw, 10, a channel middle partition plate, 101, a partition plate block, 11, a channel lower partition plate, 12, a wire outlet block, 12a wire outlet hole, 13, a base assembly, 14, a spring, 15, a knocking winding assembly, 16, a wire channel, 17, a chamfer type guide, 18, a right angle type guide, 19, a linear type guide, 20, a fixed mounting part, 21, an inclined guide plate, 22, a buckle, 23, a clamping groove, 24, an inclined block, 25, a wire accommodating cavity and 26 are arranged.
Detailed Description
Referring to fig. 1-4, there are shown embodiments of the present invention: the outer inserting line grass cutting head with the blind-inserting double flange surfaces comprises a fastening cover 1 and a base component 13 which are mutually clamped, specifically, two clamping grooves 23 are arranged on the fastening cover 1, and two corresponding buckles 22 are arranged on the base component 13 and are connected in a buckling mode; the base component 13 is provided with a wire outlet block 12, and the base component further comprises a knocking wire winding component 15 arranged in the fastening cover 1 and the base component 13, wherein the knocking wire winding component 15 is formed by integrally combining; a fixed mounting part 20 matched with an output shaft of the motor is arranged on the base component 13, the knocking winding component 15 is sleeved on the inner side of the fixed mounting part 20, and a spring 14 is arranged between the fixed mounting part 20 and the knocking winding component 15, so that the knocking winding component 15 can move on the base component 13;
the knocking winding assembly 15 has the following specific structure: the wire winding starting device comprises a knocking head 5, a winding starting cover 8, a channel middle partition plate 10 and a channel lower partition plate 11, wherein the channel middle partition plate 10 is arranged between the winding starting cover 8 and the channel lower partition plate 11, and a wire channel 16 is formed after the winding starting cover 8 and the channel middle partition plate 10 are combined; a wire accommodating cavity 25 communicated with the wire channel 16 is formed between the channel lower partition plate 11 and the channel middle partition plate 10; the anti-theft device is characterized by further comprising a sliding cover 2 and a flat gasket 6, wherein a bearing 4 is arranged on the knocking head 5 in a pressing mode, a boss is arranged on the inner side of the sliding cover 2, the boss is inserted into an inner hole of the bearing 4 and can be rotatably connected with the knocking head 5, a screw 7 and the flat gasket 6 are arranged on one side, far away from the sliding cover 2, of the knocking head 5, and the screw 7 penetrates through the flat gasket 6 and is locked on the boss of the sliding cover 2; reel start lid outer lane 8 is provided with the sloping block 24 of annular equipartition, sloping block 24 with the inboard lug (not shown in the figure) of fastening lid 1 forms the locking cooperation, and baffle 11, passageway intermediate bottom 10, reel start lid 8 lock down through self-tapping screw 9 and form an organic whole on knocking head 5.
Further, the channel middle partition plate 10 comprises 3 partition plate blocks 101 which are annularly and uniformly distributed, a plurality of guides are arranged on the channel on each partition plate block 101, each guide is a combination of a chamfer type guide 17, a right angle type guide 18 and a linear type guide 19, and the chamfer type guide 17 is preferably a linear chamfer;
furthermore, a plurality of inclined guide plates 21 are arranged on the channel middle partition plate 10, and the inclined guide plates 21 are communicated with the wire accommodating cavity 25 and the wire guide channel 16, so that a grass cutting rope can be inserted into the channel middle partition plate 10 from the wire outlet block along the inclined guide plates 21 and then extend out from the other wire outlet block 12.
Furthermore, in order to prevent the grass-mowing rope from being disconnected from the inside of the grass-mowing head and prevent the grass-mowing head from working continuously, the outlet hole 12a of the outlet block 12 installed on the base component 13 is a vertically-arranged long circular hole.
The traditional grass cutting head is complex in structure of an internal channel, when the grass cutting rope is installed, the inlet and the outlet of the channel are required to be completely corresponding and consistent with a line hole of the line outgoing block, and the grass cutting rope can penetrate through the grass cutting head and then is wound. Different from the traditional rope threading mode of the grass mowing rope, the grass mowing head is provided with a plurality of wire guide channels 16 and a plurality of inlets and outlets, the grass mowing rope can extend out of the other wire outlet block after being threaded through any channel through the guide of the wire guide channels 16, and then the whole knocking winding assembly 15 is driven to rotate through rotating the knocking head 5, so that the grass mowing rope in the channel is wound on the wire accommodating cavity 25.
The assembly process of the invention:
1. taking out the base component 13 of the grass cutting head;
2. respectively placing the 2 wire outlet blocks 12 into corresponding mounting holes of the base component 13;
3. taking out the knocking head 5 and the bearing 4, press-fitting the bearing 4 into a mounting hole in the knocking head 5, and locking 3 cap screws 3;
4. then taking out the sliding cover 2, and press-fitting the boss 31 on the inner side of the sliding cover into the inner hole of the bearing 4;
5. the flat washer 6 is taken out and fitted to the boss 31 of the slide cover 2 which has just been fitted to the bearing 4;
6. then locking the screw 7;
7. taking out the lower channel partition 11, sequentially mounting the three partition blocks 101 on the lower channel partition 11, and then placing and mounting the reel starting cover 8;
8. the assembly is locked on the bolt fixing column of the knocking head 5 by a plurality of self-tapping screws 9 passing through a gasket 27 and passing through the channel lower partition 11, the channel middle partition 10 and the reel starting cover 8;
9. placing the spring 14 on the fixed mounting portion 20 of the base assembly 13, and then mounting the integral rapping wire winding assembly 15 on the base assembly 13;
10. the fastening cover 1 of the grass mowing head is taken out, the buckle 22 on the base component 15 is buckled on the clamping groove 23 of the fastening cover 1, and the integral assembly of the grass mowing head is completed.
The working process of the invention is as follows: when the grass trimmer is used, the fixed mounting part 20 on the base component 13 is fixedly connected with an output shaft of the grass trimmer, the motor is started to drive the whole grass trimmer head to rotate at a high speed, and the internal knocking winding component 15 is fixedly mounted on the base component 13 as a whole, so that the grass trimmer rotates stably and does not generate excessive vibration and noise; when needing to go out the rope, strike downwards strike head 5, strike head 5 drives and strikes winding assembly 15 and wholly to base subassembly 13 direction displacement to this makes reel start lid 8 break away from with the spacing of fastening lid 1, strikes winding assembly 15 and no longer follows base subassembly 13 motion this moment, can realize free rotation, thereby makes inside beat the grass rope and extend from the piece 12 of being qualified for the next round of competitions along wire passageway 19, when striking head 5 return, strikes winding assembly 15 and resumes to follow base subassembly 13 motion, no longer goes out the rope.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and simple modifications, equivalent changes and modifications may be made without departing from the technical scope of the present invention.
Claims (7)
1. The utility model provides a head is beaten to outer extrapolation line of blind insertion's two flange faces, includes interconnect's buckle lid and base subassembly, be equipped with out line piece, its characterized in that on the base subassembly: the wire winding device also comprises a knocking wire winding component arranged in the fastening cover and the base component, and the knocking wire winding component is formed by integrally combining;
the base assembly is provided with a fixed mounting part matched with the output shaft of the motor, the knocking winding assembly is sleeved on the inner side of the fixed mounting part, and a spring is arranged between the fixed mounting part and the knocking winding assembly, so that the knocking winding assembly can move on the base assembly;
the knocking winding assembly comprises a knocking head, a winding starting cover, a channel middle partition plate and a channel lower partition plate, wherein the channel middle partition plate is arranged between the winding starting cover and the channel lower partition plate, and a lead channel is formed after the winding starting cover and the channel middle partition plate are combined;
and a wire accommodating cavity communicated with the wire channel is formed between the channel lower partition plate and the channel middle partition plate.
2. A blind-mate double-flanged-face external-extrapolation grass-mowing head according to claim 1, characterized in that: the channel intermediate baffle comprises a plurality of annularly and uniformly distributed baffle blocks, a plurality of guides are arranged on the channel on the baffle blocks, and the guides can be a combination of chamfer type guides, right angle type guides and linear type guides.
3. A blind-mate double-flanged-face external-extrapolation grass-mowing head according to claim 2, wherein: the middle partition plate of the channel is provided with a plurality of inclined guide plates which are communicated with the wire accommodating cavity and the wire channel, so that the grass mowing rope can be inserted from the wire outlet block and then enters the middle partition plate of the channel along the inclined guide plates, and then extends out from the other wire outlet block.
4. A blind-mate double-flanged-face external-extrapolation grass-mowing head according to claim 1, characterized in that: the knocking winding assembly further comprises a sliding cover and a flat gasket, a bearing is pressed on the knocking head, a boss is arranged on the inner side of the sliding cover, the boss is inserted into an inner hole of the bearing and can be rotatably connected with the knocking head, a screw and the flat gasket are arranged on one side, away from the sliding cover, of the knocking head, and the screw penetrates through the flat gasket and is locked on the boss of the sliding cover; the reel starts and covers the outer lane and is provided with the sloping block of annular equipartition, the sloping block with the inboard lug formation locking cooperation of fastening the lid.
5. A blind-mate double-flanged-face external-extrapolation grass-mowing head according to claim 1, characterized in that: the wire outlet hole of the wire outlet block arranged on the base component is a longitudinally arranged long circular hole.
6. A blind-mate double-flanged-face external-extrapolation grass-mowing head according to claim 1, characterized in that: the fastening cover is provided with a fastener, and the base component is provided with a clamping groove.
7. A blind-mate double-flanged-face external-extrapolation grass-mowing head according to claim 1, characterized in that: the base component is provided with a buckle, and the buckle cover is provided with a clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460652.9A CN111480444A (en) | 2020-05-27 | 2020-05-27 | Blind-plugging double-flange-face external insertion line grass mowing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460652.9A CN111480444A (en) | 2020-05-27 | 2020-05-27 | Blind-plugging double-flange-face external insertion line grass mowing head |
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| Publication Number | Publication Date |
|---|---|
| CN111480444A true CN111480444A (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010460652.9A Pending CN111480444A (en) | 2020-05-27 | 2020-05-27 | Blind-plugging double-flange-face external insertion line grass mowing head |
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| Country | Link |
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| CN (1) | CN111480444A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110239468A1 (en) * | 2010-03-31 | 2011-10-06 | Paul Conlon | Trimmer head having a hinged housing for use in flexible line rotary trimmers systems |
| GB201409930D0 (en) * | 2013-06-09 | 2014-07-16 | Chervon Hk Ltd | Cutting head of a grass trimmer |
| CN205431040U (en) * | 2015-12-22 | 2016-08-10 | 常州格力博有限公司 | From wire winding head of beating grass |
| CN208079805U (en) * | 2017-08-07 | 2018-11-13 | 南京德朔实业有限公司 | Grass-mowing machine and its moving head |
| CN109691288A (en) * | 2017-10-20 | 2019-04-30 | 南京德朔实业有限公司 | Moving head and grass-mowing machine |
| CN209845727U (en) * | 2019-03-08 | 2019-12-27 | 宝时得科技（中国）有限公司 | Grass mowing head and grass mowing machine |
-
2020
- 2020-05-27 CN CN202010460652.9A patent/CN111480444A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110239468A1 (en) * | 2010-03-31 | 2011-10-06 | Paul Conlon | Trimmer head having a hinged housing for use in flexible line rotary trimmers systems |
| GB201409930D0 (en) * | 2013-06-09 | 2014-07-16 | Chervon Hk Ltd | Cutting head of a grass trimmer |
| CN205431040U (en) * | 2015-12-22 | 2016-08-10 | 常州格力博有限公司 | From wire winding head of beating grass |
| CN208079805U (en) * | 2017-08-07 | 2018-11-13 | 南京德朔实业有限公司 | Grass-mowing machine and its moving head |
| CN109691288A (en) * | 2017-10-20 | 2019-04-30 | 南京德朔实业有限公司 | Moving head and grass-mowing machine |
| CN209845727U (en) * | 2019-03-08 | 2019-12-27 | 宝时得科技（中国）有限公司 | Grass mowing head and grass mowing machine |
Non-Patent Citations (2)
| Title |
|---|
| 奚永生: "《塑料、橡胶成型模具设计手册》", 31 July 2000, 中国轻工业出版社 * |
| 马光述等: "《桥梁工程》", 30 November 2018, 武汉大学出版社 * |
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Application publication date: 20200804 |