Sweeper chassis and sweeper

Abstract

The utility model discloses a sweeper chassis and a sweeper, and belongs to the technical field of sweepers. According to the sweeper chassis and the sweeper, the driving wheels, the universal wheels and the laser radars are distributed on the periphery of the chassis body, an integral large space can be formed in the center of the chassis body, more sweeper parts can be installed, and the space utilization rate of the sweeper chassis is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sweeping machines, in particular to a sweeping machine chassis and the sweeping machine. Background Art

[0002] When a sweeper encounters an obstacle during cleaning, it needs to be raised to clear it. Therefore, a lifting power source is required to provide power to raise the sweeper. However, the internal space of existing sweepers is limited, making it impossible to install the lifting power source inside the sweeper. Installing the lifting power source outside the sweeper would increase the size of the sweeper and reduce its aesthetics. Utility Model Content

[0003] The purpose of the utility model is to provide a sweeping machine chassis and a sweeping machine, wherein the sweeping machine chassis has a more reasonable layout, which is conducive to improving the utilization rate of the internal space of the sweeping machine.

[0004] To achieve the above objectives, the following technical solutions are provided:

[0005] On the one hand, a sweeper chassis is provided, including:

[0006] Chassis body;

[0007] Two drive wheels, both of which are rotatably disposed on the bottom of the chassis body, and the two drive wheels are respectively located at the ends of the left and right center lines of the chassis body; the left and right center lines are perpendicular to the direction of travel of the sweeper;

[0008] A universal wheel is mounted on the bottom of the chassis body, the universal wheel is located on the front-back center line of the chassis body, and along the direction of travel of the sweeper, the universal wheel is located on one side of the left-right center line; the front-back center line is parallel to the direction of travel of the sweeper;

[0009] A laser radar is installed on the chassis body, the laser radar is located on the front and rear center line, and along the direction of travel of the sweeper, the laser radar is located on the other side of the left and right center line.

[0010] As a preferred solution of the sweeper chassis, the outer peripheral surface of the chassis body includes a first curved surface and a second curved surface. Along the travel direction of the sweeper, the first curved surface is located in front of the left and right center lines, and the second curved surface is located behind the left and right center lines.

[0011] The radius r of the circle where the first arc-shaped surface is located is smaller than the radius R of the circle where the second arc-shaped surface is located.

[0012] As a preferred solution for the sweeper chassis, the first arcuate surface is symmetrically arranged about the front and rear center lines; and / or,

[0013] The second arcuate surface is symmetrically arranged about the front-rear center line.

[0014] As a preferred solution of the chassis of the sweeping machine, the chassis body is circular; the chassis body is provided with a first protrusion, the first protrusion is protruded on the upper surface of the chassis body and forms a first groove on the lower surface of the chassis body;

[0015] The laser radar is fixed on the first protrusion; and / or,

[0016] A through hole is provided on the side wall of the first groove.

[0017] As a preferred solution for the chassis of the sweeping machine, the chassis body is provided with second grooves arranged in a one-to-one correspondence with the driving wheels, and the driving wheels are arranged in the corresponding second grooves.

[0018] As a preferred solution for the sweeper chassis, the second groove is recessed from the lower surface of the chassis body and forms a second protrusion on the upper surface of the chassis body, and an installation space for installing a roller brush is provided between the two second protrusions.

[0019] As a preferred solution for the sweeper chassis, the first protrusion and the two second protrusions are arranged to form the installation space.

[0020] As a preferred solution for the sweeper chassis, along the traveling direction of the sweeper, the orthographic projection of the laser radar on the preset plane is located in front of the orthographic projection of the driving wheel on the preset plane; and / or,

[0021] Along the traveling direction of the sweeper, the orthographic projection of the driving wheel on the preset plane is located in front of the orthographic projection of the universal wheel on the preset plane;

[0022] The preset plane is perpendicular to the left and right center lines.

[0023] As a preferred solution for the chassis of the sweeping machine, along the traveling direction of the sweeping machine, the distance between the laser radar and the left and right center lines is smaller than the distance between the universal wheel and the left and right center lines.

[0024] On the other hand, a sweeping machine is provided, comprising the sweeping machine chassis as described in any one of the above items.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The sweeper chassis and sweeper of the present invention distribute the driving wheels, universal wheels and laser radar around the chassis body, which can form an overall large space in the center of the chassis body, and thus can install more sweeper components, thereby improving the space utilization of the sweeper chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The structure of the chassis of the sweeping machine in the embodiment of the utility model is shown as follows Figure 1 ;

[0028] Figure 2 The structure of the chassis of the sweeping machine in the embodiment of the utility model is shown as follows Figure 2 ;

[0029] Figure 3 The structure of the chassis of the sweeping machine in the embodiment of the utility model is shown as follows Figure 3 .

[0030] Reference numerals:

[0031] 100, left and right center line; 200, front and back center line;

[0032] 1. Chassis body; 11. First protrusion; 12. First groove; 13. First through hole; 14. Second groove; 15. Second protrusion; 16. First curved surface; 17. Second curved surface; 2. Drive wheel; 3. LiDAR; 4. Universal wheel; 5. Installation space. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] It should also be noted that, in the description of this utility model, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] like Figure 1-3As shown, this embodiment provides a sweeping machine chassis, including a chassis body 1, a driving wheel 2, a laser radar 3 and a universal wheel 4. There are two driving wheels 2, and both driving wheels 2 are rotatably arranged at the bottom of the chassis body 1. The two driving wheels 2 are respectively located at the two ends of the left and right center lines 100 of the chassis body 1; the left and right center lines 100 are perpendicular to the traveling direction of the sweeping machine; the universal wheel 4 is installed at the bottom of the chassis body 1, and the universal wheel 4 is located on the front and rear center lines 200 of the chassis body 1. Along the traveling direction of the sweeping machine, the universal wheel 4 is located on one side of the left and right center lines 100; the front and rear center lines 200 are parallel to the traveling direction of the sweeping machine; the laser radar 3 is installed on the chassis body 1, and the laser radar 3 is located on the front and rear center lines 200. Along the traveling direction of the sweeping machine, the laser radar 3 is located on the other side of the left and right center lines 100.

[0041] The sweeper chassis of this embodiment distributes the driving wheels 2, universal wheels 4 and laser radar 3 around the chassis body 1, which can form an overall large space in the center of the chassis body 1, and thus can install more sweeper components (including power sources), thereby improving the space utilization of the sweeper chassis.

[0042] In a specific embodiment of the present invention, along the direction of travel of the sweeper, the laser radar 3 is located in front of the left-right center line 100, and the universal wheel 4 is located behind the left-right center line 100. This arrangement is conducive to improving the stability of the sweeper in movement and turning, and at the same time facilitates the laser radar 3 to obtain environmental information in the direction of travel of the sweeper.

[0043] In some embodiments, the chassis body 1 is circular; the chassis body 1 is provided with a first protrusion 11, which is protruding from the upper surface of the chassis body 1 and forms a first groove 12 on the lower surface of the chassis body 1; the laser radar 3 is fixed to the first protrusion 11. Mounting the laser radar 3 on the first protrusion 11 increases the installation height of the laser radar 3, which is conducive to improving the scanning range and scanning accuracy of the laser radar 3. The provision of the first protrusion 11 also forms the first groove 12 on the lower surface of the chassis body 1. The first groove 12 can also be used to accommodate components of the sweeper, thereby further improving the space utilization of the sweeper chassis and the internal space utilization of the sweeper.

[0044] In some embodiments, a through hole is provided on the side wall of the first groove 12 , thereby facilitating connection between components disposed in the first groove 12 and other components.

[0045] In this embodiment, the first groove 12 includes a first side wall, and along the moving direction of the sweeper, the first side wall is the side wall on the rear side of the first groove 12; the through hole includes a first through hole 13, and the first through hole 13 is arranged on the first side wall. In other words, the first through hole 13 is arranged to pass through along the moving direction of the sweeper.

[0046] In some embodiments, the chassis body 1 is provided with second grooves 14 corresponding to the driving wheels 2 one by one, and the driving wheels 2 are arranged in the corresponding second grooves 14, thereby making the chassis of the sweeping machine lower and having a wider range of applications.

[0047] Specifically, the driving wheel 2 is rotatably disposed in the corresponding second groove 14. It should be noted that a portion of the driving wheel 2 is located in the second groove 14, and the other portion is located outside the second groove 14, thereby enabling the driving wheel 2 to roll on the ground so that the sweeper can perform cleaning operations.

[0048] In some embodiments, the second groove 14 is recessed in the lower surface of the chassis body 1 and forms a second protrusion 15 on the upper surface of the chassis body 1. An installation space 5 for installing a roller brush is provided between the two second protrusions 15, so that the roller brush can be located between the two driving wheels 2, thereby improving the compactness of the layout of the chassis body 1 and achieving high space utilization.

[0049] In some embodiments, the first protrusion 11 and the two second protrusions 15 are arranged to form an installation space 5, and the roller brush can be installed on the side walls of the first protrusion 11 and the second protrusion 15 without setting up a separate installation structure, thereby further improving the compactness of the layout of the chassis body 1 and the space utilization.

[0050] Exemplarily, the first protrusion 11 and the second protrusion 15 are protrusions formed by stamping. In other words, the first protrusion 11, the second protrusion 15 and the chassis body 1 are an integrally formed structure, which is not only convenient for processing but also conducive to achieving lightweight.

[0051] In some embodiments, the outer circumference of the chassis body 1 includes a first curved surface 16 and a second curved surface 17. Along the direction of travel of the sweeper, the first curved surface 16 is located in front of the left-right centerline 100, and the second curved surface 17 is located behind the left-right centerline 100. The radius r of the circle encompassing the first curved surface 16 is smaller than the radius R of the circle encompassing the second curved surface 17. This arrangement increases the area of the rear end of the chassis body 1, allowing for the placement of more sweeper components. For example, a lifting power source used to lift the sweeper to overcome obstacles can be located at the rear end of the chassis body 1. At the same time, the area of the front end of the chassis body 1 is not increased, thus balancing the requirements for miniaturization and functional diversification of the sweeper.

[0052] In this embodiment, one second curved surface 17 is provided, and the second curved surface 17 is symmetrically arranged about the front-rear center line 200, thereby making the appearance of the sweeping machine more beautiful and facilitating the manufacture of the sweeping machine chassis.

[0053] Furthermore, there are multiple first curved surfaces 16, which are spaced apart circumferentially along the chassis body 1, and the multiple first curved surfaces 16 are all located in the same circle, so as to improve the aesthetics of the sweeper chassis and facilitate the assembly of the chassis body 1 and the sweeper shell.

[0054] Of course, in other embodiments, both the first curved surface 16 and the second curved surface 17 can be provided, and the first curved surface 16 is symmetrically provided about the front-rear center line 200, and the second curved surface 17 is symmetrically provided about the front-rear center line 200, so as to make the appearance of the sweeping machine more beautiful and facilitate the production of the sweeping machine chassis.

[0055] In some embodiments, along the direction of travel of the sweeper, the orthographic projection of the laser radar 3 on the preset plane is located in front of the orthographic projection of the drive wheel 2 on the preset plane. In some embodiments, along the direction of travel of the sweeper, the orthographic projection of the drive wheel 2 on the preset plane is located in front of the orthographic projection of the universal wheel 4 on the preset plane. The preset plane is perpendicular to the left and right center lines 100.

[0056] Such an arrangement makes the laser radar 3, drive wheel 2 and universal wheel 4 more dispersed on the chassis body 1, thereby making the overall space formed in the center of the chassis body 1 larger, facilitating the arrangement of more components without increasing the volume of the sweeper chassis.

[0057] In some embodiments, along the direction of travel of the sweeper, the distance between the laser radar 3 and the left and right center lines 100 is smaller than the distance between the universal wheels 4 and the left and right center lines 100. This arrangement, on the one hand, increases the distance between the drive wheel 2 and the universal wheels 4 along the direction of travel of the sweeper, which helps improve the stability of the sweeper during movement. On the other hand, it leaves a certain amount of space between the laser radar 3 and the front end of the sweeper chassis, facilitating the installation of the cleaning mechanism.

[0058] This embodiment further provides a sweeping machine, comprising the sweeping machine chassis as described above. The sweeping machine of this embodiment, by applying the sweeping machine chassis as described above, has corresponding functions and beneficial effects.

[0059] It should be noted that in this embodiment, the sweeper's travel direction is parallel to the front-to-back direction of the chassis body 1 and perpendicular to the left-to-right direction of the chassis body 1. The up-down direction of the chassis body 1 is the vertical direction. In other words, the front-to-back direction, the left-to-right direction, and the up-to-down direction of the chassis body 1 are perpendicular to each other. Furthermore, the side of the chassis body 1 facing the ground is the lower surface, and the side of the chassis body 1 facing away from the lower surface in the vertical direction is the upper surface. The laser radar 3 is located at the front end of the chassis body 1, the universal wheel 4 is located at the rear end of the chassis body 1, and the two drive wheels 2 are located on the left and right sides of the chassis body 1. The front-to-back centerline 200 is the centerline of the chassis body 1 along its front-to-back direction, and the left-to-right centerline 100 is the centerline of the chassis body 1 along its left-to-right direction. In other words, the front-to-back centerline 200 is perpendicular to the left-to-right centerline 100, and the intersection of the front-to-back centerline 200 and the left-to-right centerline 100 is the center of the circular chassis body 1.

[0060] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. The chassis of the sweeping machine is characterized by: include: Chassis body (1); Two driving wheels (2), both of which are rotatably arranged at the bottom of the chassis body (1), and the two driving wheels (2) are respectively located at the two ends of the left and right center lines (100) of the chassis body (1); the left and right center lines (100) are perpendicular to the travel direction of the sweeper; A universal wheel (4), the universal wheel (4) being mounted on the bottom of the chassis body (1), the universal wheel (4) being located on a front-rear centerline (200) of the chassis body (1), and being located on one side of the left-right centerline (100) along the direction of travel of the sweeper; the front-rear centerline (200) being parallel to the direction of travel of the sweeper; A laser radar (3), wherein the laser radar (3) is installed on the chassis body (1), the laser radar (3) is located on the front-rear center line (200), and along the direction of travel of the sweeper, the laser radar (3) is located on the other side of the left-right center line (100).

2. The sweeping machine chassis according to claim 1, characterized in that: The outer peripheral surface of the chassis body (1) includes a first arcuate surface (16) and a second arcuate surface (17); along the traveling direction of the sweeper, the first arcuate surface (16) is located in front of the left-right center line (100), and the second arcuate surface (17) is located behind the left-right center line (100); The radius r of the circle where the first arcuate surface (16) is located is smaller than the radius R of the circle where the second arcuate surface (17) is located.

3. The sweeping machine chassis according to claim 2, characterized in that: The first arcuate surface (16) is symmetrically arranged about the front-back center line (200); and / or, The second arcuate surface (17) is symmetrically arranged about the front-back center line (200).

4. The sweeping machine chassis according to claim 1, characterized in that: The chassis body (1) is circular; the chassis body (1) is provided with a first protrusion (11), the first protrusion (11) is convexly provided on the upper surface of the chassis body (1) and forms a first groove (12) on the lower surface of the chassis body (1); The laser radar (3) is fixed on the first protrusion (11); and / or, A through hole is provided on the side wall of the first groove (12).

5. The sweeping machine chassis according to claim 4, characterized in that: The chassis body (1) is provided with second grooves (14) arranged in one-to-one correspondence with the driving wheels (2), and the driving wheels (2) are arranged in the corresponding second grooves (14).

6. The sweeping machine chassis according to claim 5, characterized in that: The second groove (14) is recessed from the lower surface of the chassis body (1) and forms a second protrusion (15) on the upper surface of the chassis body (1); an installation space (5) for installing a roller brush is provided between the two second protrusions (15).

7. The sweeping machine chassis according to claim 6, characterized in that: The first protrusion (11) and the two second protrusions (15) are arranged to form the installation space (5).

8. The sweeping machine chassis according to claim 1, characterized in that: Along the traveling direction of the sweeper, the orthographic projection of the laser radar (3) on the preset plane is located in front of the orthographic projection of the driving wheel (2) on the preset plane; and / or, Along the traveling direction of the sweeper, the orthographic projection of the driving wheel (2) on the preset plane is located in front of the orthographic projection of the universal wheel (4) on the preset plane; The preset plane is perpendicular to the left and right center lines (100).

9. The sweeping machine chassis according to claim 1, characterized in that: Along the traveling direction of the sweeper, the distance between the laser radar (3) and the left and right center lines (100) is smaller than the distance between the universal wheel (4) and the left and right center lines (100).

10. A sweeping machine, characterized in that: The utility model comprises a sweeping machine chassis as described in any one of claims 1 to 9.

Images