CN211721118U - Intelligent mower - Google Patents
Intelligent mower Download PDFInfo
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- CN211721118U CN211721118U CN201921427490.8U CN201921427490U CN211721118U CN 211721118 U CN211721118 U CN 211721118U CN 201921427490 U CN201921427490 U CN 201921427490U CN 211721118 U CN211721118 U CN 211721118U
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Abstract
The utility model relates to an intelligent mower, include: the shell is used for mounting the driving module, the cutting module and the control module; the driving module comprises a driving motor and a walking assembly driven by the driving motor; the cutting module comprises a cutting motor arranged on the shell and a cutting unit driven by the cutting motor; the control module is connected with the driving module and the cutting module and controls the intelligent mower to walk and work; the cutting unit comprises a first cutting unit and a second cutting unit, and the cutting motor drives the first cutting unit to rotate around an output shaft of the cutting motor in a preset direction to form a first cutting area; the second cutting unit is driven by a transmission mechanism to rotate in the preset direction to form a second cutting area, and the first cutting area and the second cutting area are located on the same plane. This intelligence lawn mower drive mechanism is simple, and is with low costs and cutting efficient.
Description
Technical Field
The utility model relates to a lawn mower field especially relates to an intelligent lawn mower of high-efficient cutting.
Background
With the improvement of the technological level and the development of the society, intelligent automatic walking equipment is well known, and the automatic walking equipment does not need manual operation and intervention, so that the intelligent automatic walking equipment is widely applied to industrial and household products. The intelligent automatic walking equipment greatly saves time of people and brings great convenience to industrial production and home life.
The intelligent lawn mower is a commonly used household product and can be used for automatically executing a lawn mowing task, trimming a lawn and keeping the lawn tidy and beautiful. An intelligent lawn mower generally comprises a housing, a driving module, a cutting module, a control module and the like, wherein the cutting module comprises a cutting unit and a cutting motor. The cutting motor drives the cutting unit, and mowing work is performed by high-speed rotation of the cutting unit. In order to meet different requirements of different users on mowing efficiency, the intelligent mower can be provided with a plurality of cutting units. In the conventional art, the plurality of cutting units of the intelligent lawn mower are respectively driven by the plurality of cutting motors, further increasing the manufacturing cost of the product.
SUMMERY OF THE UTILITY MODEL
For overcoming the defects of the prior art, the utility model aims to solve the problem that an intelligent mower is provided, its cutting module simple structure and cutting are efficient.
The utility model discloses the technical problem that solve is realized through following technical scheme:
an intelligent mower comprises a shell, a cutting module and a control module, wherein the shell is used for mounting the driving module, the cutting module and the control module; the driving module comprises a driving motor and a walking assembly driven by the driving motor; the cutting module comprises a cutting motor arranged on the shell and a cutting unit driven by the cutting motor; the control module is connected with the driving module and the cutting module and controls the intelligent mower to walk and work; the method is characterized in that: the cutting unit comprises a first cutting unit and a second cutting unit, and the cutting motor drives the first cutting unit to rotate around an output shaft of the cutting motor in a preset direction to form a first cutting area; the second cutting unit is driven to rotate in a preset direction through a transmission mechanism to form a second cutting area; the first cutting area and the second cutting area are positioned on the same plane.
Further, the transmission mechanism is disposed between the cutting motor and the cutting unit in a height direction.
Further, drive mechanism includes synchronous belt drive mechanism, synchronous belt drive mechanism includes first synchronous pulley, second synchronous pulley, hold-in range. .
Further, the transmission mechanism comprises a gear transmission mechanism, and the gear transmission mechanism comprises a first gear, a second gear and a third gear.
Further, the projection of the first cutting area and the projection of the second cutting area in the transverse direction have an overlapping area.
Further, a line connecting the center of rotation of the first cutting region and the center of rotation of the second cutting region is substantially perpendicular to the horizontal longitudinal axis of the housing.
Furthermore, an included angle formed by a connection line of a circle center rotating center of the first cutting area and a rotating center of the second cutting area and a horizontal longitudinal axis of the shell is smaller than 90 degrees.
Further, the first cutting region intersects the second cutting region.
Further, the first cutting unit and the second cutting unit rotate at the same speed.
Further, first cutting unit with second cutting unit includes first blade disc and second blade disc respectively, first blade disc with install a plurality of cutting blades on the second blade disc respectively.
Further, first cutting region with the crossing region of second cutting region has two nodical points, two nodical points constitute alpha with the line of arbitrary blade disc centre of a circle, cutting blade's cutting end has two endpoints, first blade disc or two adjacent cutting blade have two endpoints nearest apart from on the second blade disc, two endpoints nearest and the centre of a circle line constitution contained angle beta of place blade disc apart from, contained angle alpha is less than half contained angle beta.
Furthermore, the included angle alpha ranges from 24 degrees to 36 degrees, and the included angle beta ranges from 102 degrees to 114 degrees.
Further, the first cutting region is circumscribed or separated from the second cutting region.
To sum up, the utility model discloses beneficial effect is: the intelligent mower with the cutting module and the cutting efficiency high and the structure simple is provided, the cutting width is large, and the intelligent mower is suitable for a large-area working area; adopt a cutting motor simultaneously, one of them cutting unit is rotatory in order to predetermine the direction around cutting motor output shaft, and it is rotatory through another cutting unit of drive mechanism drive, and two cutting unit's direction of rotation is the same for simple structure, low cost, the space is arranged compactly.
Drawings
Above the utility model discloses an aim at, technical scheme and beneficial effect can realize through following attached drawing:
fig. 1 is a schematic view of a first embodiment of the present invention illustrating a top view of an intelligent lawn mower.
Fig. 2 is a schematic sectional view along the main view direction of the intelligent mower in fig. 1.
Fig. 3 is a schematic view of a top view of a cutting unit of the intelligent lawn mower according to the first embodiment of the present invention.
Fig. 4 is a schematic view of a gear transmission mechanism of an intelligent lawn mower according to a second embodiment of the present invention.
Fig. 5 is a schematic top view of a cutting unit of a third embodiment of the intelligent lawn mower according to the present invention.
The relevant elements in the drawings are numbered correspondingly as follows:
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the invention.
The following description of the preferred embodiment of the intelligent lawn mower 100 is provided with reference to the accompanying drawings.
Example one
Fig. 1 to 4 show a first embodiment of the present invention. Referring to fig. 1, the smart lawn mower 100 includes a housing 110; and the driving module is used for walking and comprises a driving motor and a plurality of walking components for supporting and guiding the intelligent mower 100 to move on the ground. The driving motor 123 of this embodiment, and the energy unit for supplying energy to the driving motor 123 is disposed in the housing 110, and this embodiment uses a battery pack. The control module is electrically connected with the driving module, the cutting module and the energy unit, is provided with an integrated circuit board for connecting and controlling the functional modules, can control the driving module to drive the intelligent mower 100 to walk in a defined area, and controls the cutting module to execute a cutting task. Referring to fig. 3, the cutting module, which performs a mowing work, includes a cutting motor 130 mounted to a housing 110, and a cutting motor output shaft 131 outputting a rotational power. The cutting unit and the transmission mechanism 140 are connected with the cutting motor output shaft 131 and driven to rotate by the cutting motor 130, specifically, the cutting unit comprises a first cutting unit 151 and a second cutting unit 152, the cutting motor 130 drives the first cutting unit 151 to rotate around the cutting motor output shaft 131 in a preset direction to form a first cutting area 161; the transmission mechanism 140 drives the second cutting unit 152 to rotate in a predetermined direction to form a second cutting region 162; the first cutting region 161 and the second cutting region 162 are located on the same plane. The axis of the cutting motor output shaft 131 coincides with the axis of the first cutting unit rotating shaft 132, the first cutting unit rotating shaft 132 and the second cutting unit rotating shaft 133 are vertically arranged in parallel, and the preset direction of rotation may be set to be clockwise or counterclockwise. Two cutting units are installed to intelligent lawn mower 100 in this embodiment, but can install the cutting unit of two above quantities, the embodiment of the utility model provides an use 2 cutting units of installation to expand as the example. Meanwhile, the walking assembly of the intelligent lawn mower 100 may include 2 driving wheels 121 and one guide wheel 122, but this is only an alternative way, the walking assembly may also include other numbers of driving wheels 121 and other numbers of guide wheels 122, and a crawler-type walking assembly may also be adopted as long as the normal movement of the vehicle can be ensured. The utility model discloses only using a cutting motor 130, not needing other switching-over subassemblies, using under the condition of transmission part still less as far as possible, realizing that the pair of cutting unit syntropy is rotatory, produced compact structure based on this, with low costs beneficial effect.
The transmission mechanism 140 of the cutting module of the intelligent lawn mower 100 is arranged below the cutting motor 130 and between the cutting motor 130 and the cutting unit in the height direction, and the arrangement mode can save more space to arrange other functional modules. It should be understood that the position relationship of the transmission mechanism 140 disposed below the cutting motor 130 is only an optional embodiment of the present invention, and the transmission mechanism 140 may be disposed above the cutting motor 130 if necessary, and therefore should not be taken as a limitation to the present invention. The transmission mechanism 140 of the present embodiment is a synchronous belt transmission mechanism, and as shown in fig. 2, includes a first synchronous pulley 141, a second transmission synchronous pulley 142, and a synchronous belt 143, the synchronous belt 143 is an endless belt having an inner peripheral surface provided with teeth at equal intervals, and the inner peripheral surface of the synchronous belt 143 is engaged with the synchronous pulley. The synchronous pulley is made of metal materials or engineering plastics, and tooth grooves are formed in the surface of the synchronous pulley and are in meshing transmission with the synchronous belt 143, so that relative sliding does not exist between the synchronous belt 143 and the synchronous pulley. The transmission efficiency is high, the transmission ratio is accurate, the angular speed is constant, and the transmission energy of the intelligent mower 100 is saved. The first synchronous pulley 141 is connected with the cutting motor output shaft 131 through a bearing, the cutting motor 130 drives the first synchronous pulley 141 to rotate, the first synchronous pulley 141 drives the second driving pulley 142 to rotate synchronously through meshing transmission with the synchronous belt 143, the first synchronous pulley 141 is connected with the second synchronous pulley 142 only through the synchronous belt 143, and other intermediate components (such as a reversing wheel, a tension wheel and the like) are not needed, so that the belt transmission mechanism 140 is simple in structure, light in weight and low in cost. The first timing pulley 141 rotates coaxially with the first cutting unit 151, and the second timing pulley 142 rotates coaxially with the second cutting unit 152 by being connected to a rotating shaft through a bearing. In this embodiment, the first and second timing pulleys 141 and 142 have the same radius and other specifications, and therefore have the same rotation speed, so that the first and second cutting units can rotate at the same speed. Of course, different specifications may be set to obtain different rotation speeds, which are determined according to the position relationship between the cutting regions, for example, if the cutting regions intersect, the same specification parameters are set to obtain the same rotation speed, and if the cutting regions are circumscribed or separated, the rotation speeds of the cutting units may be the same or different, which is not intended to limit the present invention. The cutting unit is adjustable in height relative to the ground so that the intelligent mower 100 can perform cutting at different heights while mowing. When the intelligent mower 100 needs to adjust the cutting height, the transmission mechanism 140 and the cutting unit simultaneously generate height change compared with the ground.
Referring to fig. 3, the intelligent lawn mower 100 has a cutting unit for performing mowing work, and includes a first cutting unit 151 and a second cutting unit 152, wherein the first cutting unit 151 generates a first cutting area 161, the second cutting unit 152 generates a second cutting area 162, both cutting areas are circular areas, and the arrangement of the two cutting units can increase the transverse width of the cutting area of the intelligent lawn mower 100, thereby improving mowing efficiency. In order to prevent a missed cutting area from being generated between the two cutting units, the two cutting areas are required to be ensured to have overlapped cutting areas in the transverse direction, the transverse direction is a direction perpendicular to the horizontal longitudinal axis of the intelligent mower 100 on the horizontal plane, the overlapped cutting areas in the transverse direction are divided into two schemes, the first scheme is that the connecting line of the rotation center of the first cutting area 161 and the rotation center of the second cutting area 162 is approximately perpendicular to the horizontal longitudinal axis of the intelligent mower, the position relation of the two circular cutting areas is intersected, and the generated intersected area is the overlapped cutting area; the second solution is that the included angle between the connecting line of the rotation center of the first cutting area 161 and the rotation center of the second cutting area 162 and the horizontal longitudinal axis of the intelligent mower is an acute angle, and the two cutting areas can be intersected, circumscribed or separated in position, as long as the two cutting areas are ensured to have overlapped cutting areas in the transverse direction. In the first embodiment, the first cutting unit 151 includes a first cutter disc 153 with a cutting blade 155, and the second cutting unit 152 includes a second cutter disc 154 with a cutting blade 155, where the center of the cutter disc is the rotation center of the cutting area. The line connecting the circle center Q1 of the first cutter head and the circle center Q2 of the second cutter head is approximately vertical to the horizontal longitudinal axis of the intelligent mower, the arrangement mode can reduce the distance between the front walking wheel and the rear walking wheel of the intelligent mower 100 as far as possible, so that the structure of the intelligent mower 100 is more compact, the size of the intelligent mower 100 is reduced, and the beneficial effect of reducing the cost is achieved. The first cutter disc 153 and the second cutter disc 154 are located on the same plane, so that the intelligent mower can trim the lawn more smoothly and beautifully. The first cutter disc 153 and the second cutter disc 154 have the same rotating speed, a plurality of cutting blades 155 extending radially are respectively arranged on the first cutter disc and the second cutter disc 154 along the peripheral direction of the cutter disc, and the plurality of cutting blades 155 are fastened or pivotally connected with the cutter disc, and the embodiment adopts a pivotal connection, and the cutting blades 155 are pivotally arranged on the cutter disc through bolts 157 and nuts in threaded fit with the bolts. Of course other fixation means may be envisaged by the skilled person instead. This embodiment may be selected to have 3 cutting blades 155 staggered 120 degrees around the circumference of the cutterhead. Optional cutting blade 155 includes a mounting end and a cutting end, the cutting end having two end points, respectively end point 155a and end point 155b, the mounting end being removably attachable to the cutter disc, thereby facilitating replacement and maintenance, the cutting end extending outside the cutter disc for performing mowing tasks. The advancing direction of the intelligent mower 100 is taken as the front side direction, the ground clearance of the front side of the selectable cutterhead is smaller than the ground clearance of the rear side of the cutterhead, and namely the plane where the cutterhead is located inclines downwards along the front side direction. As shown in fig. 3, the hatched areas are the first cutting area 161 and the second cutting area 162, which are circular, in order to prevent the missing cutting area from being generated between the two cutting areas, the first cutting area 161 intersects with the second cutting area 162 to generate an intersecting area 163, the repeated cutting is serious due to the excessively large intersecting area 163, which causes energy waste, and the missing cutting phenomenon still occurs when the intersecting area 163 is excessively small. In this embodiment, the two circular intersecting regions 163 have two intersecting points, the two intersecting points respectively form an included angle α with a connecting line of the centers of circles of any of the cutter discs, the first cutter disc 153 or the second cutter disc 154 has adjacent cutting blades 155, and the adjacent cutting blades 155 have end points of two cutting ends closest to each other, as shown in fig. 3, an end point 155b and an end point 155 a', the two end points respectively form an included angle β with a connecting line of a center Q1 of a circle of the cutter disc, and the included angle α is smaller than half of the included angle β. The value range of the optional included angle β in this embodiment is 102 to 114 degrees, and the value range of the included angle α is 24 to 36 degrees. The setting of the included angle α and the included angle β enables the range of the intersection region 163 to ensure that the two cutterheads rotate in the same direction without using a reversing component in the transmission mechanism, and the cutting blades 155 do not interfere with each other, thereby achieving the advantages of compact structure, no leakage of cutting, and low cost.
Example two
The difference between the second embodiment and the first embodiment is the design of the transmission mechanism. Referring to fig. 5, the transmission mechanism of this embodiment is a gear transmission mechanism, is disposed under the cutting motor 130, and includes a gear shield 174 and a transmission assembly 170 installed in the gear shield 174, the gear shield 174 includes a first housing and a second housing, the two housings form a box body by fasteners, the transmission assembly is located in the box body to prevent water drops, dust or other impurities from entering the transmission assembly 170 and affecting its transmission effect, and keep the transmission space clean, the transmission assembly 170 includes a first gear 171, a second gear 172 and a third gear 173, the first gear 171 is horizontally disposed and connected to the output shaft of the cutting motor 130 through a bearing, the cutting motor 130 outputs a driving force for the output shaft, so that the first gear 171 rotates around the center of the output shaft of the cutting motor 130, the first gear 171 is engaged with the third gear 173, the third gear 173 is engaged with the second gear 172, the second gear 172 is fixedly connected to the rotating shaft of the second cutting unit 152 through a bearing, the first gear 171, the second gear 172 and the third gear 173 are located in the same plane, in this embodiment, the radius and other specifications of the first gear 171 and the second gear 172 are the same, so in the transmission process, the rotating speed of the first gear 171 and the rotating speed of the second gear 172 are the same, so as to ensure that the rotating speed of the first cutting unit 151 and the rotating speed of the second cutting unit 152 are the same, different specification parameters can be set to obtain different rotating speeds, specifically, the position relationship with the cutting area should be determined, and therefore, the limitation of the present invention is not taken as a pair. The diameter of the third gear 173 may be determined according to the distance between the rotation axes of the two cutting units, and in the present embodiment, the diameter of the optional third gear 173 is larger than the diameters of the first gear 171 and the second gear 172. The cutting motor 130 drives the first gear 171 to rotate, engages with the third gear 173 of the intermediate wheel, and transmits the rotational power to the second gear 172, thereby enabling the second cutting unit 152 to rotate in the same direction as the first cutting unit 151.
EXAMPLE III
The difference between the third embodiment and the first embodiment is that the spatial arrangement of the cutting units is different, i.e. the second case of ensuring that there are overlapping cutting areas in the transverse direction for both cutting areas. As shown in fig. 5. In this embodiment, an included angle formed by a connecting line of a rotation center of the first cutting unit 151 and a rotation center of the second cutting unit 152 and a horizontal longitudinal axis of the intelligent mower 100, that is, an included angle formed by a connecting line of a first cutter disc center Q1 and a second cutter disc center Q2 and a horizontal longitudinal axis of the intelligent mower 100, is set to be smaller than 90 degrees, so that the first cutting unit 151 and the second cutting unit 152 are arranged in a staggered manner, the first cutter disc 153 rotates to generate a first cutting area 161, the second cutter disc 154 rotates to generate a second cutting area 162, the two cutting areas are arranged in an inclined manner, the position relationship can be intersection, outer tangent or outer separation, if the position relationship between the two cutting areas is intersection, under the condition that a synchronization mechanism does not adopt a reversing assembly, only by limiting the range of the intersection area, it can be ensured that the cutting blades 155 installed on the cutter discs do not collide in the same-direction rotation process, that is, an included angle α is formed by a connecting line of two intersection points of the intersection areas and the center of a circle of any cutterhead, an included angle β is formed by a connecting line of the end point of the adjacent cutting blade 155 of the cutterhead, which is closest to the center of the circle of the cutterhead, and the included angle α is smaller than one-half of the included angle β. The value range of the optional included angle β in this embodiment is 102 to 114 degrees, and the value range of the included angle α is 24 to 36 degrees. If the two cutting regions are circumscribed, the projections of the first cutting region 161 and the second cutting region 162 in the transverse direction have overlapping portions, so that the repeated cutting regions can be ensured. If the two cutting regions are located at an outward distance, the projection of the transverse radius of the first cutting region 161 and the transverse radius of the second cutting region 162 in the transverse direction has an overlapping portion, and the length of the overlapping portion is the maximum transverse width of the repeated cutting region. Therefore, the aim of preventing cutting leakage can be achieved as long as the projections of the transverse radiuses of the two circular cutting areas in the transverse direction have an overlapped part. The outward and outward cutting positional relationship between the two cutting areas prevents the cutting blades 155 from colliding during the rotation process, so that the included angle between the adjacent blades of the two cutterheads can be set to any angle, the outward cutting arrangement mode is adopted between the two optional cutting areas in the embodiment, and the transverse width of the intelligent mower 100 is reduced as much as possible under the condition that the rotating blades of the cutterheads are not interfered with each other and have repeated cutting areas.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (13)
1. An intelligent lawnmower for autonomous walking and cutting work in a work area, comprising: the shell is used for mounting the driving module, the cutting module and the control module;
the driving module comprises a driving motor and a walking assembly driven by the driving motor;
the cutting module comprises a cutting motor arranged on the shell and a cutting unit driven by the cutting motor;
the control module is connected with the driving module and the cutting module and controls the intelligent mower to walk and work;
the method is characterized in that: the cutting unit comprises a first cutting unit and a second cutting unit, and the cutting motor drives the first cutting unit to rotate around an output shaft of the cutting motor in a preset direction to form a first cutting area; the second cutting unit is driven to rotate in the preset direction through a transmission mechanism to form a second cutting area; the first cutting area and the second cutting area are located on the same plane.
2. The intelligent lawn mower of claim 1, wherein: the transmission mechanism is arranged between the cutting motor and the cutting unit in the height direction.
3. The intelligent lawn mower of claim 1, wherein: the transmission mechanism comprises a synchronous belt transmission mechanism, and the synchronous belt transmission mechanism comprises a first synchronous belt wheel, a second synchronous belt wheel and a synchronous belt.
4. The intelligent lawn mower of claim 1, wherein: the transmission mechanism comprises a gear transmission mechanism, and the gear transmission mechanism comprises a first gear, a second gear and a third gear.
5. The intelligent lawn mower of claim 1, wherein: the projection of the first cutting area and the projection of the second cutting area in the transverse direction have an overlapping area.
6. The intelligent lawn mower of claim 5, wherein: the connecting line of the rotation center of the first cutting area and the rotation center of the second cutting area is vertical to the horizontal longitudinal axis of the shell.
7. The intelligent lawn mower of claim 5, wherein: and an included angle formed by a connecting line of the rotation center of the first cutting area and the rotation center of the second cutting area and the horizontal longitudinal axis of the shell is less than 90 degrees.
8. The intelligent lawn mower of claim 6 or 7, wherein: the first cutting region intersects the second cutting region.
9. The intelligent lawn mower of claim 8, wherein: the first cutting unit and the second cutting unit rotate at the same speed.
10. The intelligent lawn mower of claim 9, wherein: the first cutting unit with the second cutting unit includes first blade disc and second blade disc respectively, first blade disc with install a plurality of cutting blades on the second blade disc respectively.
11. The intelligent lawn mower of claim 10, wherein: first cutting region with the crossing region in second cutting region has two nodical points, two nodical lines with arbitrary blade disc centre of a circle constitute contained angle alpha, cutting blade's cutting end has two endpoints, first blade disc or two adjacent cutting blade have two endpoints nearest apart from on the second blade disc, two endpoints nearest apart from constitute contained angle beta with the centre of a circle line of place blade disc, contained angle alpha is less than half contained angle beta.
12. The intelligent lawn mower of claim 11, wherein: the included angle alpha ranges from 24 degrees to 36 degrees, and the included angle beta ranges from 102 degrees to 114 degrees.
13. The intelligent lawn mower of claim 7, wherein: the first cutting region is circumscribed or spaced apart from the second cutting region.
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CN201921427490.8U CN211721118U (en) | 2019-08-30 | 2019-08-30 | Intelligent mower |
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CN201921427490.8U CN211721118U (en) | 2019-08-30 | 2019-08-30 | Intelligent mower |
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