Crawler belt of automatic cleaning device and automatic cleaning device

Abstract

The application provides a track of an automatic cleaning device and the automatic cleaning device, which are used for improving the material discharging efficiency, friction, grip and driving stability of the automatic cleaning device in poor road conditions. The track of the automatic cleaning device is connected through the first channel and the second channel, so that the external objects in the adjacent two first channels can flow through the second channel and flow to the outside through the end of the first channel, thereby increasing the material discharging path on the track, accelerating the material discharging speed of the track, improving the material discharging efficiency of the track, avoiding the external objects from being blocked in the first channel, and improving the friction and grip of the track.

Description

Technical Field

[0001] This application relates to the field of automatic cleaning devices. Background Technology

[0002] Currently, when automatic sweeping devices travel on poor road conditions such as wetlands, snow, and mud, the friction and grip between the tracks and the sweeping surface are insufficient. Furthermore, external objects such as mud, gravel, and water can easily enter the track channels and cause blockages, thus affecting the track's material removal efficiency, driving stability, and sweeping capacity. Summary of the Invention

[0003] In order to improve the efficiency of automatic sweeping devices in terms of material removal, friction, grip and driving stability under poor road conditions, this application provides a track for an automatic sweeping device and an automatic sweeping device.

[0004] The specific technical solution is as follows: An automatic cleaning device track includes a track body and a track tooth assembly; The track tooth assembly is arranged around the outer periphery of the track body. The track tooth assembly includes a plurality of tracks teeth, which are arranged sequentially at intervals along the length direction of the track body. A first channel is formed between two adjacent tracks teeth and the top surface of the track body. At least one end of the first channel is connected to the outside, so that external objects in the first channel can flow to the outside through the end of the first channel. The top surface of the track tooth is provided with a plurality of mutually spaced first protrusions. A second channel is formed between two adjacent first protrusions and the top surface of the track tooth. The two ends of the second channel are respectively connected to the first channel so that external objects in the two adjacent first channels can flow through the second channel. At least one first protrusion is provided with a second protrusion, and the second protrusion extends outward along the direction away from the top surface of the first protrusion. A third protrusion is provided in the first channel, and the third protrusion is located in the middle of the first channel, dividing the first channel into two parts; The third protrusion forms a gap with the sidewall of at least one adjacent tooth, and the two ends of the gap are respectively connected to the two parts of the first channel. The two parts of the first channel, the gap, and the second channel constitute a discharge channel.

[0005] In one embodiment, the track tooth includes a middle portion, an end portion, and a transition portion, wherein the transition portion is located between the middle portion and the end portion, and the width of the middle portion and the end portion are greater than the width of the transition portion. The number of the first protrusion is at least three, wherein the three first protrusions are distributed on the top surface of the middle part of the track tooth and the top surface of both ends of the track tooth; The number of the second protrusions is at least three, wherein the three second protrusions are distributed on the first protrusion located in the middle of the track tooth and on the first protrusions located at both ends of the track tooth.

[0006] In one embodiment, a fourth protrusion is provided in the second channel, the fourth protrusion extending outward in a direction away from the top surface of the tooth, the fourth protrusion dividing the second channel into two sub-second channels.

[0007] In one embodiment, the first boss has a first sidewall disposed along the length direction of the track body and a second sidewall disposed along the width direction of the track body; The fourth boss also has a first sidewall arranged along the length direction of the track body and a second sidewall arranged along the width direction of the track body; The first protrusion near the first sidewall of the fourth protrusion and the first sidewall of the fourth protrusion and the top surface of the track tooth form the second sub-channel. The projection of the first protrusion near the first sidewall of the fourth protrusion on the track body and the projection of the first sidewall of the fourth protrusion on the track body are both outward arc-shaped.

[0008] In one embodiment, the projected area of ​​the fourth protrusion on the track body is smaller than the projected area of ​​the first protrusion located in the middle of the track tooth on the track body; and the projected area of ​​the fourth protrusion on the track body is smaller than the projected area of ​​the first protrusion located at the end of the track tooth on the track body.

[0009] In one embodiment, the toothed assembly further includes at least one anti-slip stud, at least one of the top surfaces of the first boss is provided with a mounting hole, the anti-slip stud includes a top and a rod portion connected to each other, at least a portion of the rod portion is located inside the mounting hole, the top portion is located outside the mounting hole, and the portion of the anti-slip stud protruding from the top surface of the first boss constitutes the second boss.

[0010] In one embodiment, a connecting structure is provided between the rod and the mounting hole, and the anti-slip nail can be detachably mounted on the first boss by the connecting structure.

[0011] In one embodiment, the first channel is provided with a plurality of protruding ridges, which are arranged sequentially along the length direction of the first channel; or the plurality of protruding ridges are arranged sequentially along the width direction of the first channel; or the plurality of protruding ridges are arranged obliquely along the length or width direction of the first channel; or the plurality of protruding ridges are arranged intersectingly to form a mesh structure.

[0012] In one embodiment, the tooth end includes a first sub-end and a second sub-end connected to each other, with an included angle between the first sub-end and the second sub-end, the included angle being between 90° and 180°.

[0013] In one embodiment, the outer perimeter of the tooth gradually decreases from the bottom surface of the tooth to the top surface of the tooth; The outer perimeter of the first boss gradually decreases from the bottom surface of the first boss to the top surface of the first boss; The outer perimeter of the bottom surface of the second boss is smaller than the outer perimeter of the top surface of the first boss.

[0014] In one embodiment, the distribution density of the second boss in the length direction of the track body is greater than 33 per m; The distribution density of the second boss in the width direction of the track body is greater than 25 per m.

[0015] In one embodiment, a plane perpendicular to the effective gravity direction of the track body and parallel to the length direction of the track body is a projection plane, and the projected area of ​​the second boss on the projection plane is between 0 cm² and 0 cm³. 2 up to 3cm 2 between.

[0016] In addition, this application also provides an automatic cleaning device, which is characterized by including the track of the aforementioned automatic cleaning device.

[0017] This application has at least the following beneficial effects: This application provides an embodiment of an automatic cleaning device track. Through the interconnection of a first channel and a second channel, external objects within adjacent first channels can flow between each other via the second channel and exit to the outside through the ends of the first channels. This increases the discharge path on the track, accelerates the discharge speed, improves discharge efficiency, prevents external objects from clogging the first channels, and enhances track friction and grip. Simultaneously, the first boss, second channel, and second boss increase the unevenness of the track tooth surface and the number of friction points between the track teeth and the ground, further improving track friction and grip, and thus enhancing track stability. Furthermore, by providing a third boss within the first channel and creating a gap between the third boss and the sidewall of adjacent track teeth, the two parts of the first channel, the gap, and the second channel constitute a discharge channel, which better balances the contact area, friction, track stiffness, discharge speed, and discharge efficiency between the track and the ground. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the automatic cleaning device provided in the embodiments of this application; Figure 2 A first structural schematic diagram of a track provided for an embodiment of this application; Figure 3 for Figure 1 The first enlarged view of region A in the middle; Figure 4 for Figure 1 The second enlarged view of region A in the middle; Figure 5 for Figure 3 A magnified view of a portion of region B in the middle; Figure 6 for Figure 1 The third enlarged view of region A in the middle; Figure 7 for Figure 1 The fourth enlarged view of region A in the middle; Figure 8 A schematic diagram of the anti-slip studs provided for embodiments of this application; Figure 9 A schematic diagram of the second structure of the track provided for an embodiment of this application; Figure 10 for Figure 9 A magnified view of a portion of region C in the middle; Figure 11 A third structural schematic diagram of the track provided for an embodiment of this application; Figure 12 A fourth structural schematic diagram of the track provided for an embodiment of this application; Figure 13 A fifth structural schematic diagram of a track provided for an embodiment of this application.

[0020] Figure label: 100 - Tracks; 110 - Track body; 111 - Top surface of track body; 120 - Track tooth assembly; 121 - Track tooth; 122 - Top surface of track tooth; 123 - Middle part of track tooth; 124 - End of track tooth; 125 - Transition part of track tooth; 126 - Side wall of track tooth; 1241 - First sub-end; 1242 - Second sub-end; 130 - First channel; 131 - End of the first channel; 132 - Middle of the first channel; 133 - Gap; 134 - Protruding ridge; 140 - First boss; 141 - First boss located in the middle of the track tooth; 142 - First boss located at the end of the track tooth; 143 - First sidewall of the first boss; 144 - Second sidewall of the first boss; 145 - First sidewall of the first boss near the fourth boss; 146 - First sidewall of the first boss away from the fourth boss; 147 - Top surface of the first boss; 148 - Mounting hole; 149 - Connecting structure 150 - Second channel; 151 - End of the second channel; 152 - Sub-second channel; 160 - Second boss; 170 - Third boss; 180 - Fourth boss; 181 - First sidewall of the fourth boss; 182 - Second sidewall of the fourth boss; 190 - Anti-slip stud; 191 - Top; 192 - Bar; 193 - External thread X1 - Length direction of the track body; X2 - Direction away from the top surface of the first boss; X3 - Direction away from the top surface of the track tooth; X4 - Length direction of the first channel; X5 - Width direction of the first channel; X6 - Width direction of the track body; Y1 - Width of the middle part of the track tooth; Y2 - Width of the end of the track tooth; Y3 - Width of the transition part of the track tooth; Z1 - Projection plane; L1 - Outer perimeter of the bottom surface of the tooth; L2 - Outer perimeter of the top surface of the tooth; L3 - Outer perimeter of the bottom surface of the first boss; L4 - Outer perimeter of the top surface of the first boss; L5 - Outer perimeter of the bottom surface of the second boss. α - included angle; 200 - Automatic cleaning device body. Detailed Implementation

[0021] Various embodiments of this application will be described more fully below. This application may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this application to the specific embodiments disclosed herein, but rather this application should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this application.

[0022] This application provides an automatic cleaning device, such as... Figures 1 to 13 As shown, the automatic cleaning device includes: a track 100, which is in contact with the cleaning surface.

[0023] Currently available automatic sweeping devices are more susceptible to road surface conditions (such as wetlands and snow) when moving on surfaces with poor conditions, resulting in greater resistance to movement. This can cause the automatic sweeping devices to slip or even tip over, thus affecting their working efficiency.

[0024] Based on this, such as Figures 1 to 13 As shown, this application provides a track 100 for an automatic cleaning device, including a track body 110 and a tooth assembly 120, the tooth assembly 120 being arranged around the outer periphery of the track body 110. The track body 110 serves to support the tooth assembly 120, which contacts the ground during movement and generates a propulsive force through friction with the ground. In one embodiment, the tooth assembly 120 includes a plurality of teeth 121, which are arranged sequentially at intervals along the length direction X1 of the track body. A first channel 130 is formed between two adjacent teeth 121 and the top surface 111 of the track body. At least one end 131 of the first channel communicates with the outside, so that external objects (such as mud, sand, water, etc.) entering the first channel 130 during the movement of the tooth assembly 120 can flow to the outside through the end of the first channel 130.

[0025] In one embodiment, the automatic sweeping device includes two tracks 100, which are located on both sides of the automatic sweeping device body 200, making the load distribution of the automatic sweeping device more uniform, while increasing the friction and grip of the automatic sweeping device, improving the anti-slip ability of the automatic sweeping device, and reducing the risk of slippage of the automatic sweeping device during operation.

[0026] like Figure 3 As shown, in one embodiment, the track tooth 121 is provided with a plurality of mutually spaced first protrusions 140. In one embodiment, the plurality of mutually spaced first protrusions 140 are provided on the top surface 122 of the track tooth, and the first protrusions 140 extend in a direction X3 away from the top surface of the track tooth. A second channel 150 is formed between two adjacent first protrusions 140 and the top surface 122 of the track tooth. The two ends 151 of the second channel are respectively connected to the first channel 130, so that external objects in the two adjacent first channels 130 can flow through the second channel 150. At least one first protrusion 140 is provided with a second protrusion 160, and the second protrusion 160 extends outward in a direction X2 away from the top surface of the first protrusion, so that the second protrusion 160 protrudes outward relative to the top surface 147 of the first protrusion.

[0027] This application, through a first channel 130 connected to the outside at least one end and a second channel connected to two adjacent first channels 130, allows external objects within the two adjacent first channels 130 to circulate with each other and to circulate to the outside through the ends of the first channels 130. This increases the discharge path on the track 100, speeds up the discharge speed of the track 100, improves the discharge efficiency of the track 100, prevents external objects entering the first channel 130 from blocking it, and improves the friction and grip of the track 100; it also utilizes a first boss 140 The second channel and the second protrusion 160 increase the unevenness of the surface of the track teeth 121, increase the number of friction points between the track teeth 121 and the ground, increase the friction and grip of the track teeth 121, enable the automatic sweeping device to better adapt to changes in the ground, reduce the swaying amplitude of the automatic sweeping device during operation, improve the driving stability of the automatic sweeping device, greatly reduce the probability of the automatic sweeping device slipping and overturning, increase the maximum power that the engine of the automatic sweeping device can output, and thus enhance the sweeping ability of the automatic sweeping device.

[0028] In one embodiment, the distribution density of the second protrusion 160 along the length direction X1 of the track body is greater than 33 per m. In another embodiment, the distribution density of the second protrusion along the width direction X6 of the track body is greater than 25 per m. This arrangement increases the number of friction points between the track 100 and the ground, increases the friction force, and increases the maximum power that the engine of the automatic cleaning device can output, thereby enhancing the cleaning capability of the automatic cleaning device.

[0029] In one embodiment, the plane perpendicular to the effective gravity direction of the track body 110 and parallel to the length direction X1 of the track body is the projection plane Z1, and the projected area of ​​the second boss 160 on the projection plane Z1 is between 0 cm² and 0 cm³. 2 up to 3cm 2 This configuration increases the contact area between the track teeth 121 and the ground, increases the number of friction points between the track 100 and the ground, increases friction, reduces the pressure per unit area, reduces the degree of sinking of the automatic sweeping device on the ground, improves grip, and facilitates the movement of the automatic sweeping device on loose or muddy ground.

[0030] In one embodiment, track 100 is a rubber track. Of course, this is not a limitation on the material of track 100.

[0031] like Figure 3 As shown, in one embodiment, the track tooth 121 has a top surface 122 and a plurality of sidewalls 126. The track tooth sidewalls 126 are connected to the track body 110 and the top surface 122 of the track tooth, respectively. The top surface 122 of the track tooth is the surface of the track tooth 121 away from the track body 110. The top surface 122 of the track tooth is used to contact the ground.

[0032] like Figure 4 As shown, in one embodiment, the track tooth 121 includes a middle section 123, two end sections 124, and a transition section 125. The transition section 125 is located between the middle section 123 and the end sections 124. The middle section 123, the end sections 124, and the transition section 125 constitute a strip-shaped track tooth 121.

[0033] like Figure 4 As shown, in one embodiment, the width Y1 of the middle portion 123 of the track tooth and the width Y2 of the end portion 124 of the track tooth are greater than the width Y3 of the transition portion of the track tooth. This arrangement increases the strength of the track tooth 121, prevents the track tooth 121 from deforming under stress, and extends the service life of the track tooth 121; at the same time, it increases the contact area between the track tooth 121 and the ground, reduces the pressure per unit area, reduces the degree of sinking of the automatic sweeping device to the ground, improves the grip, facilitates the automatic sweeping device to move on loose or muddy ground, reduces the resistance of the ground to the automatic sweeping device, and improves the driving efficiency and power performance of the automatic sweeping device; it also provides more friction points between the track tooth and the ground, increases the friction, increases the maximum power that the engine of the automatic sweeping device can output, and thus enhances the sweeping ability of the automatic sweeping device; and it enables the automatic sweeping device to better adapt to changes in the ground, reduces vehicle shaking, and improves driving stability.

[0034] like Figure 5 As shown, in one embodiment, the track tooth end 124 includes a first sub-end 1241 and a second sub-end 1242 connected to each other. The first sub-end 1241 and the second sub-end 1242 have an included angle α, which is between 90° and 180°, further increasing the rigidity of the track tooth 121, preventing the track tooth 121 from deforming under force, and extending the service life of the track tooth 121.

[0035] like Figure 3 As shown, in one embodiment, the top surface 122 of the track tooth is provided with at least three mutually spaced first protrusions 140, wherein the three first protrusions 140 are distributed on the top surface of the middle portion 123 of the track tooth and the top surfaces of the two ends 124 of the track tooth. Specifically, the top surface of the track tooth 121 is provided with three mutually spaced first protrusions 140, namely a first protrusion 141 located in the middle portion of the track tooth and a first protrusion 142 located at the two ends of the track tooth. Optionally, the number of first protrusions 140 may also be more than three. This arrangement further enhances the strength of the track tooth 121, while increasing the unevenness of the surface of the track tooth 121, reducing the probability of the friction of the track tooth 121 decreasing due to dirt clogging the track tooth 121, and further increasing the friction and grip of the track 100.

[0036] like Figure 3 , Figure 6 As shown, in one embodiment, a second channel 150 is formed between a first boss 141 located in the middle of the tooth and a first boss 142 located at the end of the tooth. A fourth boss 180 is provided in the second channel 150. The fourth boss 180 is located on the top surface of the tooth transition portion 125 and extends outward in a direction away from the top surface of the transition portion 123 of the tooth, such that the top surface of the fourth boss 180 protrudes outward relative to the top surface of the tooth transition portion 125. The fourth boss 180 divides the second channel 150 into two sub-second channels 152.

[0037] This configuration improves the friction and grip of the track 100, while also increasing the number of channels connecting two adjacent first channels 130, increasing the discharge path on the track 100, accelerating the discharge speed of the track 100, improving the discharge efficiency of the track 100, and preventing external objects from blocking the first channel 130.

[0038] like Figure 7 As shown, in one embodiment, the first boss 140 has a first sidewall 143 disposed along the length direction X1 of the track body and a second sidewall 144 disposed along the width direction X6 of the track body; the fourth boss 180 also has a first sidewall 181 disposed along the length direction X1 of the track body and a second sidewall 182 disposed along the width direction X6 of the track body.

[0039] like Figure 7 As shown, in one embodiment, the first boss 140 has two first sidewalls 143. The two first sidewalls of the first boss 141 located in the middle of the track tooth are both first sidewalls 145 close to the fourth boss; the two first sidewalls of the first boss 142 located at the end of the track tooth are one first sidewall 145 close to the fourth boss and the other first sidewall 146 away from the fourth boss.

[0040] like Figure 7 As shown, in one embodiment, a sub-second channel 152 is formed between the first sidewall 145 of the first boss near the fourth boss, the first sidewall 181 of the fourth boss, and the top surface 122 of the track tooth. The projections of the first sidewall 145 of the first boss near the fourth boss onto the track body 110 and the projections of the first sidewall 181 of the fourth boss onto the track body 110 are both outwardly arc-shaped, so that the channel width of the sub-second channel 152 gradually increases from the middle to both ends. This arrangement facilitates the rapid flow of external objects in the sub-second channel 152 from the sub-second channel 152 to the first channel 130, thereby accelerating the discharge speed of the sub-second channel 152.

[0041] like Figure 7As shown, in one embodiment, the projected area of ​​the fourth boss 180 on the track body 110 is smaller than the projected area of ​​the first boss 141 located in the middle of the track tooth on the track body 110, and the projected area of ​​the fourth boss 180 on the track body 110 is smaller than the projected area of ​​the first boss 142 located at the end of the track tooth on the track body 110.

[0042] Specifically, the top surface of the first boss 141 located in the middle of the track tooth, the top surface of the first boss 142 located at the end of the track tooth, and the top surface of the fourth boss 180 are located on the same horizontal plane to increase the contact area when the track tooth 121 contacts the ground.

[0043] like Figure 3 As shown, in one embodiment, at least one first boss 140 is provided with a second boss 160 extending outward from the top surface away from the first boss. In this embodiment, the second boss 160 is provided on the first boss 141 located in the middle of the track tooth and the first boss 142 located at the end of the track tooth.

[0044] By providing a second boss 160 on the first boss 141 located in the middle of the track tooth and the first boss 142 located at the end of the track tooth, the force balance when the track tooth 121 contacts the ground is ensured, avoiding local damage to the track tooth 121. At the same time, the rigidity of the track tooth 121 is further increased, the friction of the track tooth 121 is increased, and the slippage of the track tooth 121 when it contacts the ground is reduced.

[0045] like Figure 8 As shown, in one embodiment, the track tooth assembly 120 further includes at least one anti-slip stud 190. At least one first boss has a mounting hole 148 on its top surface 147. The anti-slip stud 190 includes a top 191 and a rod 192 connected to each other. At least a portion of the rod 192 is located within the mounting hole 148, and the top 191 is located outside the mounting hole 148. The portion of the anti-slip stud 190 protruding from the top surface 147 of the first boss forms a second boss 160. In this embodiment, the rod 192 is embedded within the mounting hole 148, and the top 191 is located outside the mounting hole 148, with the top 192 forming the second boss 160.

[0046] Specifically, the first boss 140 is manufactured using injection molding, and a mounting hole 148 is formed by recessing inward from the top surface 147 of the first boss. Alternatively, the mounting hole 148 can also be formed by drilling a hole in the top surface 147 of the first boss.

[0047] Specifically, the top 191 and the rod 192 can be integrally formed or detachably connected.

[0048] Specifically, the anti-slip studs 190 are preferably made using sheet metal processing. Of course, this is not a limitation on the manufacturing process of the anti-slip studs 190.

[0049] like Figure 3 As shown, in one embodiment, a connecting structure 149 is provided between the rod 192 and the mounting hole 148, and the anti-slip nail 190 can be detachably mounted on the first boss 140 by the connecting structure 149. Figure 3 and Figure 8 As shown, in one embodiment, the connection structure 149 is a threaded connection structure, which includes an external thread 193 and an internal thread (not shown in the figure). The mounting hole 148 is provided with an internal thread, and the rod portion 172 is provided with an external thread 193. The external thread 193 is threadedly connected to the internal thread to detachably mount the anti-slip pin 190 on the first boss 140.

[0050] like Figure 9 , Figure 10 As shown, the outer perimeter of the track tooth 121 refers to the length of the projection of the track tooth 121 onto the track body 110; the outer perimeter of the first boss 140 refers to the length of the projection of the first boss onto the track body 110; and the outer perimeter of the second boss 160 refers to the length of the projection of the second boss 160 onto the track body 110.

[0051] like Figure 10 As shown, in one embodiment, the outer perimeter of the tooth 121 gradually decreases from the bottom surface of the tooth 121 to the top surface of the tooth 121, that is, the outer perimeter L1 of the bottom surface of the tooth is greater than the outer perimeter L2 of the top surface of the tooth.

[0052] like Figure 10 As shown, in one embodiment, the outer perimeter of the first boss 140 gradually decreases from the bottom surface of the first boss 140 to the top surface of the first boss 140, that is, the outer perimeter L3 of the bottom surface of the first boss is greater than the outer perimeter L4 of the top surface of the first boss.

[0053] like Figure 10 As shown, in one embodiment, the outer perimeter L4 of the top surface of the first boss 140 is greater than the outer perimeter L5 of the bottom surface of the second boss 160.

[0054] This design saves 100 units of track weight.

[0055] like Figure 9 As shown, in one embodiment, a third protrusion 170 is provided in the first channel 130, and the third protrusion 170 is located in the middle of the first channel 130, dividing the first channel 130 into two parts. The third protrusion 170 increases the rigidity of the track 100, increases the contact area between the track 100 and the ground, and increases the grip of the track 100.

[0056] like Figure 9As shown, in one embodiment, a gap 133 is formed between the third boss 170 and the sidewall 126 of at least one adjacent track tooth. The two ends of the gap 133 are respectively connected to two parts of the first channel 130. The two parts of the first channel 130, the gap 133, and the second channel 150 constitute a discharge channel. This arrangement better balances the contact area between the track 100 and the ground, the friction, the track stiffness, and the discharge speed and efficiency.

[0057] like Figure 9 As shown, in one embodiment, a gap 133 is formed between the third boss 170 and the sidewalls 126 of the two adjacent teeth to increase the flowability of the two parts of the first channel 130.

[0058] like Figure 9 As shown, in one embodiment, multiple protrusions 134 are provided in the two parts of the first channel 130. The multiple protrusions 134 are spaced apart to form an uneven surface of the first channel 130, and the height of the protrusions 134 is less than the height of the third boss 170. This arrangement increases the unevenness of the surface of the first channel 130, avoids external objects from blocking the first channel 130, and speeds up the material discharge speed of the track 100.

[0059] like Figure 9 As shown, in one embodiment, a plurality of protrusions 134 are sequentially arranged along the length direction X4 of the first channel. In another embodiment, as... Figure 12 As shown, multiple protruding ridges 134 are sequentially arranged along the width direction X5 of the first channel. In other embodiments, such as... Figure 13 As shown, multiple protruding ridges 134 are sequentially inclined along the length direction X4 or the width direction X5 of the first channel; or multiple protruding ridges 134 are intersected to form a mesh structure.

[0060] In some embodiments, the effective coefficient of friction μ of the track 100 on the cleaning surface satisfies the following condition: 0.2 < μ < 0.3; and / or, the surface of the track 100 is provided with anti-slip studs 190, and the effective coefficient of friction μ of the track 100 with anti-slip studs 190 on the cleaning surface satisfies the following condition: 0.3 < μ < 0.4.

[0061] This application increases the friction and grip of the track 100, enabling the automatic sweeping device to better adapt to changes in the ground, reducing the swaying amplitude of the automatic sweeping device during operation, improving the driving stability of the automatic sweeping device, and greatly reducing the probability of the automatic sweeping device slipping or overturning.

[0062] In one embodiment, the effective coefficient of friction μ of the track 100 on the cleaning surface is preferably 0.25.

[0063] In one embodiment, the effective coefficient of friction μ of the track 100 with anti-slip studs 190 on the cleaning surface is preferably 0.35.

[0064] The technical solution provided in this application (with two types of bosses on the track) was compared with Comparative Example 1 (without bosses on the track) and Comparative Example 2 (with one type of boss on the track) underwent normal speed climbing at a 10° gradient, accelerated climbing at a 10° gradient, accelerated climbing at a 10° gradient, snow shoveling uphill at a 10° gradient, tensile testing on icy and snowy roads, and operation on 30cm snow. The operating status of the automatic sweeping device was observed, and the test results are shown in Table 1.

[0065] Table 1. Test Results As can be seen from Table 1, compared with this application, Comparative Example 1's performance in the 10° acceleration climb, 10° snow shoveling uphill test and traction on normal icy and snowy roads is inferior to that of this application; Comparative Example 2's performance in the 10° acceleration climb, 10° snow shoveling uphill and snow operation environment test and traction on normal icy and snowy roads is inferior to that of this application.

[0066] The track of the automatic sweeping device provided in this application increases the unevenness of the track 100 surface, increases the number of friction points between the track 100 and the ground, and increases the friction and grip of the track 100. This allows the automatic sweeping device to better adapt to changes in the ground, reduces the swaying amplitude of the automatic sweeping device during operation, improves the driving stability of the automatic sweeping device, greatly reduces the probability of the automatic sweeping device slipping and overturning, increases the maximum power that the engine of the automatic sweeping device can output, and thus enhances the sweeping capability of the automatic sweeping device.

[0067] Existing automatic cleaning devices, especially those used in yards, typically occupy a significant amount of space in the user's yard, hindering the utilization of that space. Therefore, this application provides an automatic cleaning device with a weight between 85kg and 120kg. The length of the automatic cleaning device is between 1.4m and 1.6m, and / or the width of the automatic cleaning device is between 1.1m and 1.3m, and / or the height of the automatic cleaning device is between 0.5m and 0.8m.

[0068] The embodiments of this application optimize the weight, length, width and height of the automatic cleaning device, thereby miniaturizing and lightening the automatic cleaning device and reducing the space occupied by the automatic cleaning device.

[0069] In one embodiment, the weight of the automatic cleaning device is preferably 107.18 kg.

[0070] In one embodiment, the length of the automatic cleaning device is preferably 1.5m.

[0071] In one embodiment, the width of the automatic cleaning device is preferably 1.2m.

[0072] In one embodiment, the height of the automatic cleaning device is preferably 0.6m.

Claims

1. A track for an automatic cleaning device, characterized in that, Includes track body (110) and track tooth assembly (120); The track tooth assembly (120) is arranged around the outer periphery of the track body (110). The track tooth assembly (120) includes a plurality of track teeth (121). The plurality of track teeth (121) are arranged sequentially at intervals along the length direction of the track body (110). A first channel (130) is formed between two adjacent track teeth (121) and the top surface (111) of the track body. At least one end (131) of the first channel (130) is connected to the outside, so that external objects in the first channel (130) can flow to the outside through the end (131) of the first channel. The top surface (122) of the tooth is provided with a plurality of mutually spaced first protrusions (140), and a second channel (150) is formed between two adjacent first protrusions (140) and the top surface (122) of the tooth. The two ends of the second channel (150) are respectively connected to the first channel (130) so that external objects in two adjacent first channels (130) can flow to each other through the second channel (150). At least one of the first bosses (140) is provided with a second boss (160), the second boss (160) extending outward in a direction away from the top surface (147) of the first boss; A third protrusion (170) is provided in the first channel (130), and the third protrusion (170) is located in the middle (132) of the first channel, and the third protrusion (170) divides the first channel (130) into two parts; The third protrusion (170) forms a gap (133) with the sidewall (126) of at least one adjacent tooth. The two ends of the gap (133) are respectively connected to the two parts of the first channel (130). The two parts of the first channel (130), the gap (133) and the second channel (150) constitute a discharge channel.

2. The track of the automatic cleaning device according to claim 1, characterized in that, The track tooth (121) includes a middle part (123), an end part (124), and a transition part (125). The transition part (125) is located between the middle part (123) and the end part (124). The width (Y1) of the middle part and the width of the end part (124) are greater than the width (Y3) of the transition part. The number of the first boss (140) is at least three, wherein the three first bosses (140) are distributed on the top surface of the middle part (123) of the tooth and the top surface of the two ends (124) of the tooth; The number of the second boss (160) is at least three, wherein the three second bosses (160) are distributed on the first boss (141) located in the middle of the tooth and the first boss (142) located at both ends of the tooth.

3. The track of the automatic cleaning device according to claim 1, characterized in that, The second channel (150) is provided with a fourth protrusion (180), which extends outward along the direction away from the top surface (122) of the tooth, and the fourth protrusion (180) divides the second channel (150) into two sub-second channels (152).

4. The track of the automatic cleaning device according to claim 3, characterized in that, The first boss (140) has a first sidewall (143) arranged along the length direction of the track body (110) and a second sidewall (144) arranged along the width direction of the track body (110). The fourth boss (180) also has a first sidewall (181) arranged along the length direction of the track body (110) and a second sidewall (182) arranged along the width direction (X6) of the track body (110). The first boss near the first sidewall (145) of the fourth boss, the first sidewall (181) of the fourth boss and the top surface (122) of the track tooth form the second sub-channel (152). The projection of the first boss near the first sidewall (145) of the fourth boss on the track body (110) and the projection of the first sidewall (181) of the fourth boss on the track body (110) are both outward arc-shaped.

5. The track of the automatic cleaning device according to claim 3, characterized in that, The projected area of ​​the fourth boss (180) on the track body (110) is smaller than the projected area of ​​the first boss (141) located in the middle of the track tooth on the track body (110); and the projected area of ​​the fourth boss (180) on the track body (110) is smaller than the projected area of ​​the first boss (142) located at the end of the track tooth on the track body (110).

6. The track of the automatic cleaning device according to claim 1, characterized in that, The toothed assembly (120) further includes at least one of the anti-slip studs (190), and at least one of the first bosses (140) has a mounting hole (148) on its top surface. The anti-slip stud (190) includes a top (191) and a rod (192) connected to each other. At least a portion of the rod (192) is located inside the mounting hole (148), and the top (191) is located outside the mounting hole (148). The portion of the anti-slip stud (190) protruding from the top surface (147) of the first boss constitutes the second boss (160).

7. The track of the automatic cleaning device according to claim 6, characterized in that, A connecting structure (149) is provided between the rod (192) and the mounting hole (148), and the anti-slip nail (190) can be detachably mounted on the first boss (140) by the connecting structure (149).

8. The track of the automatic cleaning device according to claim 1, characterized in that, The first channel (130) is provided with a plurality of protruding ridges (134), which are arranged sequentially along the length direction (X4) of the first channel; or the plurality of protruding ridges (134) are arranged sequentially along the width direction (X5) of the first channel; or the plurality of protruding ridges (134) are arranged obliquely along the length direction (X4) or width direction (X5) of the first channel; or the plurality of protruding ridges (134) are arranged intersectingly to form a mesh structure.

9. The track of the automatic cleaning device according to claim 2, characterized in that, The tooth end (124) includes a first sub-end (1241) and a second sub-end (1242) connected to each other, and there is an included angle (α) between the first sub-end (1241) and the second sub-end (1242), the included angle (α) being between 90° and 180°.

10. The track of the automatic cleaning device according to claim 1, characterized in that, The outer perimeter of the tooth (121) gradually decreases from the bottom surface of the tooth to the top surface (122) of the tooth; The outer perimeter of the first boss (140) gradually decreases from the bottom surface of the first boss to the top surface (147) of the first boss; The outer perimeter (L5) of the bottom surface of the second boss (160) is smaller than the outer perimeter (L4) of the top surface of the first boss.

11. The track of the automatic cleaning device according to claim 1, characterized in that, The second boss (160) has a distribution density of more than 33 per m along the length direction (X1) of the track body (110); And / or, the distribution density of the second boss (160) in the width direction (X6) of the track body (110) is greater than 25 per m.

12. The track of the automatic cleaning device according to claim 1, characterized in that, The plane perpendicular to the effective gravity direction of the track body (110) and parallel to the length direction (X1) of the track body (110) is the projection plane (Z1), and the projected area of ​​the second boss (160) on the projection plane (Z1) is between 0 cm² and 0 cm³. 2 up to 3cm 2 between.

13. An automatic cleaning device, characterized in that, Includes the track (100) of the automatic cleaning device as described in claim 1.

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