CN109832003B - Mower - Google Patents
Mower Download PDFInfo
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- CN109832003B CN109832003B CN201810349498.0A CN201810349498A CN109832003B CN 109832003 B CN109832003 B CN 109832003B CN 201810349498 A CN201810349498 A CN 201810349498A CN 109832003 B CN109832003 B CN 109832003B
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- side wall
- top wall
- volute
- connection
- wall connecting
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- 244000025254 Cannabis sativa Species 0.000 claims abstract description 87
- 238000005520 cutting process Methods 0.000 claims abstract description 56
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 26
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000007704 transition Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 241001494496 Leersia Species 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The present invention relates to mowers. The mower includes a closure member for closing the grass discharge opening. The closing piece closes the grass discharging opening through a closing part formed by the first side wall connecting part, the second side wall connecting part, the first top wall connecting part and the second top wall connecting part. The second side wall connecting part and the first side wall connecting part extend in the respective extending directions respectively, so as to gradually get close and finally connect with each other to form a common end. Since the width of the surface of the common end is 3.5mm or less, the common end forms a narrow interface between the first and second sidewall connection portions. Therefore, the grass clippings are easily separated from the common end, so that the grass clippings are not easily accumulated between the first side wall connecting part and the second side wall connecting part, and the grass clippings are favorable for throwing uniformity of grass in the cutting process of the grass mower.
Description
Technical Field
The invention relates to the technical field of gardening instruments, in particular to a mower.
Background
Mowers are widely used as mechanized mowing equipment for mowing grass in lawns, fences, gardens, etc. Mowers typically include two modes of operation, a grass cutting mode and a grass harvesting mode, respectively. The grass cutter has cutting blade in the casing, has offered the row grass mouth on the casing, and row grass mouth is connected with receipts grass container to get into the mode of receipts grass, the grass of cutting can get into receipts grass container through row grass mouth. When the grass chopping mode is used, the grass to be cut can be discharged from the shell to the ground by closing the grass discharge opening by using the closing member. The structure of the closure member of the traditional mower makes broken grass easy to accumulate and shed unevenly in the mowing process.
Disclosure of Invention
Based on this, there is a need to provide an improved mower for the problem of the closure structure of conventional mowers which tends to cause the accumulation of grass clippings during mowing.
A mower, comprising:
the first volute comprises a first top wall and a first side wall, the first side wall extends downwards from the first top wall, and a first volute cavity is formed by the first top wall and the first side wall in a surrounding mode;
the second volute is fixedly connected with the first volute and comprises a second top wall and a second side wall, the second side wall extends downwards to the second top wall, a second volute cavity is formed by surrounding the second top wall and the second side wall, the first volute cavity and the second volute cavity are mutually communicated, and a grass discharge port is formed at the joint of the second volute and the first volute;
a first cutting element disposed within the first volute, the first sidewall at least partially surrounding the first cutting element;
a second cutting element disposed within the second volute, the second sidewall at least partially surrounding the second cutting element; and
A closure for closing the grass discharge opening, the closure comprising a closure portion comprising:
a first sidewall connection configured to be matable with the first sidewall, the first sidewall connection closing the first volute in a partial circumferential direction;
A second sidewall connection configured to be matable with the second sidewall, the second sidewall connection closing the second volute in part circumferentially;
A first top wall connection configured to be mateable with the first top wall, the first top wall connection adapted to enclose a top of the first volute, the first top wall connection being fixedly connected with the first side wall connection; and
A second top wall connection configured to mate with the second top wall, the second top wall connection adapted to enclose a top of the second volute, the second top wall connection being fixedly connected with the second side wall connection;
the second side wall connecting part and the first side wall connecting part are gradually closed in the circumferential extending direction and are finally connected with each other to form a common end, and the width of the surface of the common end is less than or equal to 3.5mm.
In the technical scheme, the grass discharging port is sealed by the sealing part formed by the first side wall connecting part, the second side wall connecting part, the first top wall connecting part and the second top wall connecting part. The second side wall connecting part and the first side wall connecting part extend in the respective extending directions respectively, so as to gradually get close and finally connect with each other to form a common end. Since the width of the surface of the common end is 3.5mm or less, the common end forms a narrow interface between the first and second sidewall connection portions. Therefore, the grass clippings are easily separated from the common end, so that the grass clippings are not easily accumulated between the first side wall connecting part and the second side wall connecting part, and the grass clippings are favorable for throwing uniformity of grass in the cutting process of the grass mower.
In one embodiment, a joint is formed at the interconnection position of the first side wall and the second side wall, when the closing member closes the grass discharging opening, a distance from a lower end point of the joint to a lower end point of the common end is a first distance, and a ratio of a projection length of the common end on a horizontal plane to the first distance ranges from 0.5 to 0.7.
In one embodiment, the angle formed by the inner surface of the first side wall connecting portion and the inner surface of the second side wall connecting portion at the common end is in the range of 30 ° to 90 °.
In one embodiment, the included angle is preferably in the range of 50 ° to 70 °.
In one embodiment, the seal further comprises a first limiting assembly fixedly connected with the seal, the first limiting assembly being configured to limit radial movement of the seal in the radial direction of the first volute and the radial direction of the second volute.
In one embodiment, the sealing member further comprises a second limiting assembly fixedly connected with the sealing portion, and the second limiting assembly is used for limiting the sealing portion to move in the axial direction of the first volute and the axial direction of the second volute.
In one embodiment, the closure further comprises a hand-held portion disposed on the second spacing assembly, the hand-held portion for holding the closure in hand.
In one embodiment, the first sidewall connection is sealingly connected to the first sidewall; the first top wall connecting part is in sealing connection with the first top wall; the first top wall connecting part is in sealing connection with the first side wall connecting part; the second side wall connecting part is in sealing connection with the second side wall; the second top wall connecting part is in sealing connection with the second top wall; the second top wall connecting portion is in sealing connection with the second side wall connecting portion.
In one embodiment, the first side wall connection portion, the second side wall connection portion, the first top wall connection portion, and the second top wall connection portion are integrally formed.
Drawings
FIG. 1 is a schematic view of a mower according to an embodiment;
FIG. 2 is a schematic view of the closure shown in FIG. 1;
FIG. 3 is a schematic view of the closure shown in FIG. 1;
FIG. 4 is a bottom view of the closure shown in FIG. 1 when not mounted to the mower shown in FIG. 1;
FIG. 5 is a schematic view of the first sidewall connection shown in FIG. 1;
FIG. 6 is a schematic view of the structure of the second sidewall connection portion shown in FIG. 1;
FIG. 7 is a schematic view of the common end of the first and second sidewall connection portions shown in FIG. 1;
FIG. 8 is a schematic view of the closure of FIG. 2 in the southwest direction;
Fig. 9 is a schematic view of the closure of fig. 2 in the southwest direction.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings.
Referring to fig. 1 and 4, a mower 100 of an embodiment includes a first volute 110, a second volute 120, a first cutting element 130, a second cutting element 140, and a closure 150. The first scroll 110 and the second scroll 120 are arranged side by side in the width direction of the mower 100.
The first scroll 110 includes a first top wall 111 and a first side wall 112. The first side wall 112 extends downwardly to the first top wall 111 such that the first top wall 111 and the first side wall 112 enclose the first volute chamber 101. The first cutting element 130 is disposed within the first volute chamber 101. And the first sidewall 112 at least partially surrounds the first cutting element 130.
Specifically, as shown in fig. 1 and 4, the edge of the first top wall 111 is substantially elliptical. The first side wall 112 extends downward from an edge of the first top wall 111. So that the first side wall 112 and the first top wall 111 enclose the first volute chamber 101. The first volute chamber 101 has an opening facing downward. That is, when the mower 100 is positioned on the ground, the opening of the first volute 101 is toward the ground. The edges of the first top wall 111 may also be other shapes. The first cutting element 130 may be a cutting blade, as shown in fig. 1 and 4, with the first cutting element 130 positioned within the first volute 101. The first cutting element 130 may be coupled to the first top wall 111 by a drive shaft that rotates the first cutting element 130 within the first volute chamber 101 to cut grass. The first sidewall 112 at least partially surrounds the first cutting element 130 as the first cutting element 130 rotates within the first volute chamber 101 to cut grass.
The second volute 120 includes a second top wall 121 and a second side wall 122. The second side wall 122 extends downwardly to the second top wall 121 such that the second top wall 121 and the second side wall 122 enclose the second volute 102. The second cutting element 140 is disposed within the second volute 102. And the second sidewall 122 at least partially surrounds the second cutting element 140.
Specifically, as shown in fig. 1 and 4, the edge of the second top wall 121 is substantially elliptical. The second side wall 122 extends downward from an edge of the second top wall 121. So that the second side wall 122 and the second top wall 121 enclose the second volute 102. The second volute 102 has an opening facing downward. That is, when the mower 100 is positioned on the ground, the opening of the second volute 102 is toward the ground. The edges of the second top wall 121 may also be other shapes. The second cutting element 140 may be a cutting blade, as shown in fig. 1 and 4, with the second cutting element 140 positioned within the second volute 102. The second cutting element 140 may be coupled to the second top wall 121 by a drive shaft that rotates the second cutting element 140 within the second volute 102 to cut grass. The second sidewall 122 at least partially surrounds the second cutting element 140 as the second cutting element 140 rotates within the second volute 102 to cut grass.
As shown in fig. 1 and 4, the second scroll case 120 is fixedly connected with the first scroll case 110. Specifically, the second scroll case 120 and the first scroll case 110 may be integrally formed. And the first volute chamber 101 and the second volute chamber 102 communicate with each other. The joint of the second volute 120 and the first volute 110 is provided with a grass discharge port 103.
Referring to fig. 1 to 4, a closing member 150 is used to close the grass discharge opening 103. The closure 150 includes a closure portion. The closure portion includes a first side wall connection 151, a second side wall connection 152, a first top wall connection 153, and a second top wall connection 154.
When the closure 150 is mounted on the mower 100, the first sidewall connecting portion 151 extends in the circumferential direction of the first scroll case 110 so that the first sidewall connecting portion 151 can be engaged with the first sidewall 112. And the first sidewall connection 151 closes the first volute chamber 101 in part of the circumferential direction.
The second sidewall connection 152 extends in the circumferential direction of the second scroll case 120 such that the second sidewall connection 152 can be mated with the second sidewall 122. And the second sidewall connection 152 partially circumferentially encloses the second volute 102.
The first top wall connection 153 is configured to mate with the first top wall 111 such that the first top wall connection 153 can close the top of the first volute 101.
The second top wall connection 154 is configured to mate with the second top wall 121 such that the second top wall connection 154 closes the top of the second volute 102.
The second side wall connecting portion 152 and the first side wall connecting portion 151 gradually approach each other in the respective circumferential extending directions and are finally connected to each other to form a common end 104. Accordingly, the first and second sidewall connection parts 151 and 151 are hermetically connected. The first top wall connecting portion 153 is fixedly connected to the first side wall connecting portion 151. The second top wall connecting portion 154 is fixedly connected to the second side wall connecting portion 152.
Since the first side wall connecting portion 151 and the second side wall connecting portion 152 are hermetically connected, the first side wall connecting portion 151 closes the first scroll chamber 101 in a part of the circumferential direction, the second side wall connecting portion 152 closes the second scroll chamber 102 in a part of the circumferential direction, the first top wall connecting portion 153 closes the top of the first scroll chamber 101, and the second top wall connecting portion 154 closes the top of the second scroll chamber 102, so that respective ends of the closure 150 formed by the first side wall connecting portion 151, the second side wall connecting portion 152, the first top wall connecting portion 153, and the second top wall connecting portion 154 are respectively fitted with corresponding boundaries of the grass discharge port 103, so that the grass discharge port 103 is closed. At this time, the mower 100 is in the grass chopping mode.
Referring to fig. 1 to 4 in particular, the second side wall connecting portion 152 extends in the circumferential direction of the second scroll case 120, and the first side wall connecting portion 151 extends in the circumferential direction of the first scroll case 110. The second side wall connecting portion 152 and the first side wall connecting portion 151 extend in respective extending directions, so as to gradually approach each other and finally connect to each other to form a common end 104. Since the width of the surface of the common end 104 is 3.5mm or less, the width of the common end 104 is very narrow compared to the length of the surface of the common end 104, so that the common end 104 forms a narrow interface between the first and second sidewall connection portions 151 and 152, forming a pointed structure as shown in fig. 1 and 3. Accordingly, the chopped grass is easily separated from the common end 104, so that it is not easily accumulated between the first and second sidewall connection parts 151 and 152, which is advantageous for the throwing uniformity of grass during the cutting of the mower 100. Specifically, the width of the surface of the common end 104 may be 1mm, 1.5mm, 2mm, 3mm, 3.5mm, or the like.
The closing member 150 of the mower 100 closes the grass discharge opening 103 by a closing portion formed by a first side wall connecting portion 151, a second side wall connecting portion 152, a first top wall connecting portion 153, and a second top wall connecting portion 154. The second side wall connecting portion 152 and the first side wall connecting portion 151 extend in respective extending directions, so as to gradually approach each other and finally connect to each other to form a common end 104. Since the width of the surface of the common end 104 is 3.5mm or less, the common end 104 forms a narrow interface between the first and second sidewall connection portions 151 and 152. Accordingly, the chopped grass is easily separated from the common end 104, so that it is not easily accumulated between the first and second sidewall connection parts 151 and 152, which is advantageous for the throwing uniformity of grass during the cutting of the mower 100.
Further, a joint 105 is formed at the interconnection between the first sidewall 112 and the second sidewall 122.
Specifically, as shown in fig. 1 and 4, the first side wall 112 extends along the circumferential direction of the first scroll casing 110, and the second side wall 122 extends along the circumferential direction of the second scroll casing 120, so that the first side wall 112 and the second side wall 122 meet to form a joint 105. Since the coupling portion 105 is formed by the intersection of the first and second sidewalls 112 and 122, the first and second sidewalls 112 and 122 extend downward, and thus the coupling portion 105 extends downward.
Referring to fig. 1 to 4, when the closing member 150 closes the grass outlet 103, a distance between a lower end of the combining portion 105 and a lower end of the common end 104 is a first distance L2, and a ratio of a projection length L1 of the common end 104 on a horizontal plane to the first distance L2 is in a range of 0.5 to 0.7.
Specifically, as shown in fig. 1 and 4, the first top wall 111 and the second top wall 121 are fixedly connected above the connection of the first scroll chamber 101 and the second scroll chamber 102, so that an open space 106 is formed below the connection of the first top wall 111 and the second top wall 121.
When the configuration of the closure 150 is determined, the value of L1 can be determined. Specifically, as can be seen from the definition of L1 and L2 and the combination of fig. 1 to 4, the ratio of L1 to L2 reflects the size of the open space 106 at the communication position between the first volute chamber 101 and the second volute chamber 102.
The larger the ratio of L1 to L2, the smaller the open space 106, and the smaller the ratio of L1 to L2, the larger the open space 106.
Because the open space 106 is at the communication position between the first volute cavity 101 and the second volute cavity 102, if the open space 106 is too large, the cutting air flow in the first volute cavity 101 and the cutting air flow in the second volute cavity 102 interfere with each other greatly, and more crushed grass can be accumulated on the ground, so that the asymptotic of the air flow for cutting the crushed grass can be affected. If the opening space 106 is too small, the overlapping portion of the cutting area of the first cutting element 130 and the cutting area of the second cutting element 140 becomes small, which easily results in the grass under the junction of the first and second volutes 110 and 120 being missed.
In the embodiment, the ratio of L1 to L2 is in the range of 0.5-0.7, and the size of the opening space 106 is moderate, so that the overlapping portion of the cutting area of the first cutting element 130 and the cutting area of the second cutting element 140 is moderate, and the grass under the junction of the first volute 110 and the second volute 120 is prevented from being missed. The mutual interference of the cutting air flow in the first volute 110 and the cutting air flow in the second volute 120 is small, so that smooth running of the crushed grass is facilitated, and the technical effects of improving the throwing uniformity of the crushed grass, reducing the blockage of the crushed grass and improving the crushing rate are achieved. Alternatively, the value of L1/L2 may be 0.5, 0.6 or 0.7.
Specifically, referring to fig. 2,3 and 5-7, the inner surface of the first sidewall connecting portion 151 and the inner surface of the second sidewall connecting portion 152 form an included angle at the common end 104, so that the common end 104, the first sidewall connecting portion 151 and the second sidewall connecting portion 152 form a pointed structure as shown in fig. 3.
Specifically, the angle formed by the inner surface 151a of the first sidewall connection 151 and the inner surface 152a of the second sidewall connection 152 at the common end 104 reflects the sharpness of the pointed structure formed by the common end 104, the first sidewall connection 151, and the second sidewall connection 152. When the included angle formed by the inner surface of the first side wall connecting portion 151 and the inner surface of the second side wall connecting portion 152 at the shared end 104 is 30 ° to 90 °, the sharpness of the sharp angle structure formed by the shared end 104, the first side wall connecting portion 151 and the second side wall connecting portion 152 is moderate, and the shared end 104 can better separate the broken grass, so that the broken grass is not easy to be accumulated at the junction of the first side wall connecting portion 151 and the second side wall connecting portion 152, and the throwing uniformity is facilitated. Preferably, the inner surface 151a of the first side wall connecting portion 151 and the inner surface 152a of the second side wall connecting portion 152 form an included angle in the range of 50 ° to 70 ° at the common end 104.
Further, referring to fig. 1, 8 and 9, the mower 100 further includes a first limiting assembly 160. The first limiting component 160 is fixedly connected with the sealing part. The first spacing assembly 160 may be coupled to the closure portion by a mounting portion 170. The mounting portion 170 includes a mounting portion body and a plurality of mounting walls fixedly coupled to the mounting portion body. The first limiting component 160 is fixedly connected with the mounting portion body. The plurality of mounting walls are fixedly connected with the sealing part. The first limit assembly 160 serves to limit the radial movement of the closure portion in the radial direction of the first scroll 110 and the radial direction of the second scroll 120.
Specifically, the mower 100 is provided with a first engaging portion engaged with the first limit assembly 160, so that the first limit assembly 160 can be engaged with the first engaging portion, so that the first limit assembly 160 cannot move in the radial direction of the first scroll 110 and the radial direction of the second scroll 120. Since the first stopper assembly 160 is fixedly connected with the closing part, the closing part is not movable in the radial direction of the first scroll case 110 and the radial direction of the second scroll case 120.
For example, the first stop assembly 160 may be a set of stop bars. The spacing rib group includes a first spacing rib 161, a second spacing rib 162, a third spacing rib 163, and a fourth spacing rib 164. The mower 100 is provided with a plurality of first engaging portions. The first, second, third and fourth spacing ribs 161, 162, 163 and 164 are respectively engaged with the corresponding first engaging portions. The first and second spacing ribs 161 and 162 may be disposed at one side of the mounting portion 170, and the third and fourth spacing ribs 163 and 164 may be disposed at the other side of the mounting portion 170, so that the first and second spacing ribs 161 and 162, the third and fourth spacing ribs 163 and 164 are located at different positions in the radial direction of the first and second volutes 110 and 120, respectively. The first limiting rib 161, the second limiting rib 162, the third limiting rib 163 and the fourth limiting rib 164 are respectively abutted against the corresponding first matching parts, so that the first limiting rib 161, the second limiting rib 162, the third limiting rib 163 and the fourth limiting rib 164 cannot move in the radial direction of the first volute 110 and the radial direction of the second volute 120, and accurate positioning of the sealing piece 150 is facilitated, and the sealing piece 150 can reliably seal the grass discharge opening 103.
Specifically, the mating portions corresponding to the first limiting rib 161, the second limiting rib 162, the third limiting rib 163, and the fourth limiting rib 164 may be a baffle, a groove, or the like.
Referring to fig. 2, 8 and 9, further, the mower 100 further includes a second stop assembly 180. The second limiting component 180 is fixedly connected with the sealing part. The second spacing assembly 180 may be connected to the enclosure portion by being fixedly connected to the mounting portion 170. Specifically, the second stop assembly 180 may be a stop plate. The mower 100 is provided with a second engaging portion engaged with the second spacing assembly 180. When the closing member 150 closes the grass discharge opening 103, the second engaging portion can stop the second limiting assembly 180, so that the second limiting assembly 180 cannot move in the axial direction of the first scroll 110 and the second scroll 120, which is advantageous for accurately positioning the closing member 150, so that the closing member 150 can reliably close the grass discharge opening 103.
Further, the mower 100 also includes a handle. Referring to fig. 2, a hand-holding portion is disposed on the second limiting assembly 180, and the hand-holding portion is used to hold the closure 150. The hand-held portion may be in a ring-like configuration or a bar-like configuration, facilitating the handling of the closure 150. Illustratively, as shown in fig. 1, the second limiting component 180 is provided with a through hole 181, and the hand-holding portion may be an edge of the through hole 181, and may hold the closure 150 by holding the edge of the through hole 181 with a hand, which has a technical effect of facilitating the holding of the closure 150.
Further, referring to fig. 1 and 3, the height of the first top wall connecting portion 153 becomes gradually higher along the first counterclockwise direction X1, and the height of the second top wall connecting portion 154 becomes gradually higher along the first clockwise direction X2.
Specifically, the first counterclockwise direction X1 refers to a counterclockwise direction of rotation when viewed from the bottom of the mower 100, and the first clockwise direction X2 refers to a clockwise direction of rotation when viewed from the bottom of the mower 100, as illustrated in fig. 3.
When the mower 100 mows on the ground, the height of the first top wall connecting portion 153 becomes gradually higher in the first counterclockwise direction X1, and the height of the second top wall connecting portion 154 becomes gradually higher in the first clockwise direction X2.
The height of the first top wall 111 from the ground becomes gradually higher in the first counterclockwise direction X1. The first top wall 111 has a spiral rising structure. Therefore, the height of the first top wall connection portion 153 becomes gradually higher in the first counterclockwise direction X1, so that the first top wall connection portion 153 smoothly transitions with the first top wall 111 when the first top wall connection portion 153 is matched with the first top wall 111.
The height of the second top wall 121 from the ground becomes gradually higher in the first clockwise direction X2. The second top wall 121 has a spiral rising structure. Therefore, the height of the second top wall connecting portion 154 becomes gradually higher in the first clockwise direction X2, so that the second top wall connecting portion 154 smoothly transitions with the second top wall 121 when the second top wall connecting portion 154 is matched with the second top wall 121.
Further, the first sidewall connection 151 extends in a circumferential arc shape of the first scroll case 110, and the second sidewall connection 152 extends in a circumferential arc shape of the second scroll case 120.
In the present embodiment, since the edge of the first top wall 111 is substantially elliptical, the first side wall connection portion 151 is arcuately extended along the circumferential direction of the first scroll case 110, so that the first side wall connection portion 151 smoothly transitions with the first side wall 112. As shown in fig. 1, the first side wall connecting portion 151 forms a continuous wall enclosed along an arc with the first side wall 112, so that the cross section of the first side wall 112 and the first side wall connecting portion 151 encloses a partial ellipse.
Since the edge of the second top wall 121 is substantially elliptical, the second sidewall connection portion 152 is arcuately extended along the circumferential direction of the second scroll case 120, so that the second sidewall connection portion 152 smoothly transitions with the second sidewall 122. As shown in fig. 4, the second side wall connecting portion 152 forms a continuous wall with the second side wall 122 that surrounds along an arc shape, so that the cross-sections of the second side wall 122 and the second side wall connecting portion 152 surround a partial ellipse.
Because the first cutting element 130 rotates to cut, the rotation power drives the grass to rotate, and the first side wall connecting portion 151 and the first side wall 112 form a continuous wall surrounding along an arc, which is beneficial to the air flow asymptotic when the first cutting element 130 causes the grass to rotate, thereby being beneficial to reducing the accumulation condition of the grass and improving the grass breaking rate and the throwing uniformity. Similarly, the second cutting element 140 rotates to cut, the rotation power drives the grass to rotate, and the second side wall connecting portion 152 and the second side wall 122 form a continuous wall surrounding along an arc, which is beneficial to the asymptotic airflow when the second cutting element 140 rotates the grass, thereby being beneficial to reducing the accumulation condition of the grass and improving the grass breaking rate and the throwing uniformity.
Further, the shapes of the surfaces of the first side wall connection portion 151 and the first top wall connection portion 153 may be obtained by a spline fitting method, and then the shapes may be formed, so that the seamless connection and smooth transition between the first side wall connection portion 151 and the first side wall 112 and the seamless connection and smooth transition between the first top wall connection portion 153 and the first top wall 111 may be achieved due to the advantage of the spline fitting method. Thereby being beneficial to the asymptotic air flow when the cutting blade causes the grass to rotate, and further being beneficial to reducing the accumulation condition of the grass and improving the grass breaking rate and the throwing uniformity.
The shapes of the surfaces of the second side wall connecting portion 152 and the second top wall connecting portion 154 can be obtained by a spline fitting method and then formed, so that the seamless connection and smooth transition between the second side wall connecting portion 152 and the second side wall 122 and the seamless connection and smooth transition between the second top wall connecting portion 154 and the second top wall 121 can be realized due to the advantages of the spline fitting method. Thereby being beneficial to the asymptotic air flow when the cutting blade causes the grass to rotate, and being beneficial to reducing the accumulation condition of the grass and improving the grass breaking rate and the throwing uniformity.
Further, the first sidewall connecting portion 151 is hermetically connected to the first sidewall 112. The first top wall connection 153 is sealingly connected to the first top wall 111. The first top wall connection portion 153 is sealingly connected to the first side wall connection portion 151. The second sidewall connecting portion 152 is hermetically connected to the second sidewall 122. The second top wall connection 154 is sealingly connected to the second top wall 121. The second top wall connection 154 is sealingly connected to the second side wall connection 152.
Because the first side wall connecting portion 151 is in sealing connection with the first side wall 112, air flow and grass can be prevented from passing through the connecting portion of the first side wall connecting portion 151 and the first side wall 112, so that the air flow asymptotic property is facilitated, the accumulation condition of broken grass can be reduced, and the grass breaking rate and the throwing uniformity can be improved. Similarly, the second side wall connecting portion 152 is in sealing connection with the second side wall 122, so that air flow and grass can be prevented from passing through the connecting portion of the second side wall connecting portion 152 and the second side wall 122, and accordingly air flow asymptotic performance is facilitated, grass accumulation conditions are reduced, grass chopping rate is improved, and throwing uniformity is improved.
Because the first top wall connecting portion 153 is in sealing connection with the first side wall connecting portion 151, air flow and grass can be prevented from passing between the first side wall connecting portion 151 and the first top wall connecting portion 153, so that the air flow asymptotic property is facilitated, the accumulation condition of broken grass can be reduced, and the grass breaking rate and the throwing uniformity can be improved. Similarly, because the second top wall connecting portion 154 is in sealing connection with the second side wall connecting portion 152, air flow and grass can be prevented from passing between the second top wall connecting portion 154 and the second side wall connecting portion 152, so that the asymptotic air flow is facilitated, the accumulation condition of broken grass can be reduced, and the grass breaking rate and the throwing uniformity can be improved. Wherein the first top wall connection portion 153 and the first side wall connection portion 151 may be further connected in a sealing manner by welding or the like. The second top wall connection 154 and the second side wall connection 152 may also be sealingly connected by welding or the like.
Further, the first side wall connecting portion 151, the second side wall connecting portion 152, the first top wall connecting portion 153, and the second top wall connecting portion 154 are integrally formed.
Specifically, the first side wall connecting portion 151, the second side wall connecting portion 152, the first top wall connecting portion 153, and the second top wall connecting portion 154 may be integrally formed by casting, pouring, or the like. The first side wall connecting portion 151, the second side wall connecting portion 152, the first top wall connecting portion 153 and the second top wall connecting portion 154 are integrally formed, so that air flow caused when the mower 100 cuts cannot pass through any two adjacent connecting portions of the first side wall connecting portion 151, the second side wall connecting portion 152, the first top wall connecting portion 153 and the second top wall connecting portion 154, sealing performance of a sealing portion formed by the first side wall connecting portion 151, the second side wall connecting portion 152, the first top wall connecting portion 153 and the second top wall connecting portion 154 is good, and further the air flow asymptotic performance of the cutting blade during rotary cutting is good, so that grass accumulation conditions are reduced, grass chopping rate is improved, and throwing uniformity is improved. The first side wall connecting portion 151, the second side wall connecting portion 152, the first top wall connecting portion 153 and the second top wall connecting portion 154 are integrally formed, so that the processing process of the first side wall connecting portion 151, the second side wall connecting portion 152, the first top wall connecting portion 153 and the second top wall connecting portion 154 is simple and convenient, and the structure is stable.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A mower, comprising:
the first volute comprises a first top wall and a first side wall, the first side wall extends downwards from the first top wall to the first side wall, a first volute cavity is formed by the first top wall and the first side wall in a surrounding mode, and a first notch is formed in the first top wall;
The second volute is fixedly connected with the first volute, the second volute comprises a second top wall and a second side wall, the second side wall extends downwards to the second top wall, a second volute cavity is formed by enclosing the second top wall and the second side wall, a second notch is formed in the second top wall, the first volute cavity and the second volute cavity are communicated with each other, a grass discharging port is formed in the joint of the second volute and the first volute, and the grass discharging port comprises the first notch and the second notch;
a first cutting element disposed within the first volute, the first sidewall at least partially surrounding the first cutting element;
a second cutting element disposed within the second volute, the second sidewall at least partially surrounding the second cutting element; and
A closure for closing the grass discharge opening, the closure comprising a closure portion comprising:
a first sidewall connection configured to be matable with the first sidewall, the first sidewall connection closing the first volute in a partial circumferential direction;
A second sidewall connection configured to be matable with the second sidewall, the second sidewall connection closing the second volute in part circumferentially;
A first top wall connection configured to mate with the first top wall, the first top wall connection adapted to close the first notch in the top of the first volute, the first top wall connection being fixedly connected to the first side wall connection; and
A second top wall connection configured to mate with the second top wall, the second top wall connection adapted to close the second notch in the top of the second volute, the second top wall connection being fixedly connected to the second side wall connection;
The second side wall connecting part and the first side wall connecting part are gradually closed in the circumferential extending direction of the second side wall connecting part and are finally connected with each other to form a common end, and the width of the surface of the common end is less than or equal to 3.5mm;
When the closing piece closes the grass discharging opening, the distance from the lower end point of the combining part to the lower end point of the shared end is a first distance, and the ratio of the projection length of the shared end on the horizontal plane to the first distance is in the range of 0.5-0.7.
2. The mower of claim 1 wherein the inner surface of the first side wall attachment portion and the inner surface of the second side wall attachment portion form an angle in the range of 30 ° to 90 ° at the common end.
3. A mower according to claim 2, wherein the included angle is preferably in the range 50 ° to 70 °.
4. The mower of claim 1 wherein the closure member further comprises a first stop assembly fixedly connected to the closure portion, the first stop assembly for limiting radial movement of the closure portion in the radial direction of the first volute and the radial direction of the second volute.
5. The mower of claim 1 wherein the closure member further comprises a second stop assembly fixedly connected to the closure portion, the second stop assembly for limiting axial movement of the closure portion in the axial direction of the first volute and the axial direction of the second volute.
6. The mower of claim 5 wherein the closure member further comprises a hand grip disposed on the second spacing assembly, the hand grip for holding the closure member.
7. The mower of claim 1 wherein the first sidewall connection is sealingly connected to the first sidewall; the first top wall connecting part is in sealing connection with the first top wall; the first top wall connecting part is in sealing connection with the first side wall connecting part; the second side wall connecting part is in sealing connection with the second side wall; the second top wall connecting part is in sealing connection with the second top wall; the second top wall connecting portion is in sealing connection with the second side wall connecting portion.
8. The mower of claim 1 wherein the first side wall connection, the second side wall connection, the first top wall connection, and the second top wall connection are integrally formed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711194376 | 2017-11-24 | ||
| CN2017111943760 | 2017-11-24 |
Publications (2)
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| CN109832003A CN109832003A (en) | 2019-06-04 |
| CN109832003B true CN109832003B (en) | 2024-06-14 |
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| CN201810348876.3A Pending CN109832004A (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201820555533.XU Active CN208639010U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201810348050.7A Active CN109832006B (en) | 2017-11-24 | 2018-04-18 | Mower |
| CN201820553150.9U Active CN208285836U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201820555600.8U Active CN209170911U (en) | 2017-11-24 | 2018-04-18 | Double end grass trimmer and its transmission device, grass-mowing |
| CN201820552427.6U Active CN208639003U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201810350167.9A Pending CN109832005A (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201820555877.0U Withdrawn - After Issue CN208242236U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201810349498.0A Active CN109832003B (en) | 2017-11-24 | 2018-04-18 | Mower |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820555989.6U Active CN208639004U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201810348876.3A Pending CN109832004A (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201820555533.XU Active CN208639010U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201810348050.7A Active CN109832006B (en) | 2017-11-24 | 2018-04-18 | Mower |
| CN201820553150.9U Active CN208285836U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201820555600.8U Active CN209170911U (en) | 2017-11-24 | 2018-04-18 | Double end grass trimmer and its transmission device, grass-mowing |
| CN201820552427.6U Active CN208639003U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201810350167.9A Pending CN109832005A (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
| CN201820555877.0U Withdrawn - After Issue CN208242236U (en) | 2017-11-24 | 2018-04-18 | Grass trimmer |
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| CN (10) | CN208639004U (en) |
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| CN109634285B (en) * | 2019-01-14 | 2022-03-11 | 傲基科技股份有限公司 | Mowing robot and control method thereof |
| CN112772117A (en) * | 2019-11-07 | 2021-05-11 | 苏州宝时得电动工具有限公司 | Intelligent mower |
| CN111727821A (en) * | 2020-06-09 | 2020-10-02 | 浙江亚特电器有限公司 | Grass raker |
| CN112655355B (en) * | 2021-01-07 | 2024-04-26 | 绍兴市上虞冠业电器有限公司 | Mower |
| EP4284151A1 (en) * | 2021-01-26 | 2023-12-06 | Globe (Jiangsu) Co., Ltd. | Lawn mower |
| CN114902861A (en) * | 2021-02-10 | 2022-08-16 | 南京泉峰科技有限公司 | Grass cutter |
| WO2024050684A1 (en) * | 2022-09-06 | 2024-03-14 | Greenworks (Jiangsu) Co. Ltd. | Outdoor power machine with modular axle and deck configuration |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109832005A (en) | 2019-06-04 |
| CN208639010U (en) | 2019-03-26 |
| CN208242236U (en) | 2018-12-18 |
| CN109832006B (en) | 2024-05-14 |
| CN208285836U (en) | 2018-12-28 |
| CN208639003U (en) | 2019-03-26 |
| CN209170911U (en) | 2019-07-30 |
| CN109832003A (en) | 2019-06-04 |
| CN109832006A (en) | 2019-06-04 |
| CN109832004A (en) | 2019-06-04 |
| CN208639004U (en) | 2019-03-26 |
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