CN210019185U - Robot dust collector transmission structure and robot dust collector - Google Patents

Abstract

The utility model provides a transmission structure of a robot vacuum cleaner, including a roller brush transmission mechanism, a side brush transmission mechanism and a driving device installed on the robot vacuum cleaner body, and also includes a synchronous transmission mechanism, which is used to connect the roller brush transmission mechanism and the side brush transmission mechanism, so that the driving device drives the roller brush transmission mechanism and the side brush transmission mechanism at the same time, thereby driving the roller brush assembly and the side brush assembly to rotate. The utility model also relates to a robot vacuum cleaner. The utility model saves motors, makes the overall control lightweight, avoids the complex control of multiple motors, and especially the use of multiple motors tends to increase the probability of failure; at the same time, it solves the problem of the bulky multi-stage gear transmission structure, optimizes the internal structure of the robot vacuum cleaner, and uses the saved space in other structures to improve the cleaning efficiency of the whole machine under the same structural size. The utility model is cleverly designed and reasonably structured, which is convenient for the promotion and application of robot vacuum cleaners.

Description

A robot vacuum cleaner transmission structure and robot vacuum cleaner

technical field

The utility model belongs to the field of intelligent cleaning, and relates to a transmission structure of a robot vacuum cleaner and a robot vacuum cleaner.

Background technique

Robot vacuum cleaners, also known as sweepers, are a new generation of home nanny, which can clean room garbage such as hair, melon seed shells, and dust. With the continuous improvement of domestic living standards, the sweeping robots that have been sold in the European and American markets have gradually entered the homes of ordinary people, and are gradually accepted by more and more people. The sweeping robots will be like white goods in the near future. It has become an essential cleaning helper for every family. Products will also develop from the current primary intelligence to a higher degree of intelligence, gradually replacing manual cleaning. As an emerging smart household cleaning device in recent years, robot vacuum cleaners are gradually entering and improving people's lifestyles.

Both the roller brush assembly and the side brush assembly of the robot vacuum cleaner need power drive. In the traditional transmission structure of the robot vacuum cleaner, the motor drives the roller brush assembly and the side brush assembly respectively. This method not only increases the cost of the whole machine, but also On the one hand, due to the high output speed of the motor, the gear transmission requires multi-stage deceleration to meet the actual demand, resulting in an increase in the overall transmission size. Under the condition of a certain structure and size of the whole machine, the traditional transmission structure will greatly compress other structures such as vacuuming. The size of the device and the dust cup structure is not conducive to the improvement of the performance of the whole machine to a certain extent.

In view of this, it is urgent to improve the transmission structure of the robot vacuum cleaner.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model proposes a transmission structure of a robot vacuum cleaner and a robot vacuum cleaner. The utility model saves the motor, reduces the overall control weight, avoids the complex control of multiple motors, especially the use of multiple motors is easy to increase the probability of failure; at the same time, it solves the problem of the huge multi-stage gear transmission structure and optimizes the internal structure of the robot vacuum cleaner.

The utility model provides a transmission structure of a robot vacuum cleaner, which comprises a roller brush transmission mechanism, a side brush transmission mechanism and a driving device mounted on a robot vacuum cleaner body, and a synchronous transmission mechanism, which is used for connecting the roller brushes The transmission mechanism and the side brush transmission mechanism, so that the driving device drives the roller brush transmission mechanism and the side brush transmission mechanism at the same time, thereby driving the roller brush assembly and the side brush assembly to rotate.

Preferably, the driving device drives the rolling brush transmission mechanism, and the rolling brush transmission mechanism drives the side brush transmission mechanism through a synchronous transmission mechanism, so that the side brush assembly and the rolling brush assembly rotate simultaneously.

Preferably, the synchronous transmission mechanism includes a worm gear and a worm screw that mesh with each other, the worm gear and the rolling brush transmission mechanism are fixedly connected, and the worm gear and the side brush transmission mechanism are fixedly connected.

Preferably, the rolling brush transmission mechanism includes a first rotating wheel, a rolling brush timing pulley and a rolling brush timing belt mounted on the driving device, and the first rotating wheel of the driving device drives the rolling brush timing belt to drive The roller brush rotates synchronously with the pulley.

Preferably, the side brush transmission mechanism includes a side brush timing belt and a side brush timing pulley, and the driving device drives the rolling brush timing belt to drive the side brush timing pulley to rotate.

Preferably, the roller brush synchronous pulley is coaxially arranged with the worm through the roller brush rotating shaft. When the roller brush synchronous pulley rotates, it drives the worm to rotate together; the worm gear engaged with the worm passes through the roller. The brush timing belt drives the side brush timing pulleys to rotate simultaneously.

Preferably, the transmission ratio of the first rotating wheel and the roller brush timing pulley is 1.5:1 to 3:1.

Preferably, the transmission ratio of the worm to the worm gear is 5:1-50:1.

Preferably, the driving device drives a side brush transmission mechanism, and the side brush transmission mechanism drives the rolling brush transmission mechanism through the synchronous transmission mechanism; so that the side brush assembly and the rolling brush assembly rotate simultaneously.

The utility model further provides a robot vacuum cleaner, which includes a robot vacuum cleaner body used for ground cleaning, and the robot vacuum cleaner body includes the robot vacuum cleaner transmission structure.

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model provides a transmission structure of a robot vacuum cleaner, which comprises a roller brush transmission mechanism, a side brush transmission mechanism and a driving device mounted on a robot vacuum cleaner body, and a synchronous transmission mechanism, which is used for connecting the roller brushes The transmission mechanism and the side brush transmission mechanism, so that the driving device drives the roller brush transmission mechanism and the side brush transmission mechanism at the same time, thereby driving the roller brush assembly and the side brush assembly to rotate. The utility model also relates to a robot vacuum cleaner. The utility model saves the motor, the overall control is lightweight, avoids the complex control of multiple motors, especially the use of multiple motors is easy to increase the probability of failure; at the same time, the problem of the huge multi-stage gear transmission structure is solved, and the internal structure of the robot vacuum cleaner is optimized. The space is used in other structures to improve the cleaning efficiency of the whole machine under the same structural size. The utility model has ingenious design and reasonable structure, which is convenient for the popularization and application of the robot vacuum cleaner.

The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly, and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the present utility model and the accompanying drawings as follows: back. The specific embodiments of the present invention are given in detail by the following examples and accompanying drawings.

Description of drawings

The accompanying drawings described here are used to provide further understanding of the present invention and constitute a part of the present application. The schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a schematic diagram of the internal structure of a robot vacuum cleaner of the present invention;

Fig. 2 is the overall schematic diagram of the transmission structure of a robot vacuum cleaner of the present invention;

3 is a schematic cross-sectional view of the transmission structure of a robot vacuum cleaner of the present invention;

4 is a schematic top view of the transmission structure of a robot vacuum cleaner of the present invention;

5 is a partial schematic diagram of the transmission structure of a robot vacuum cleaner of the present invention;

6 is a three-dimensional cross-sectional view of a floating structure of a robot vacuum cleaner roller brush according to the present invention;

7 is a two-dimensional cross-sectional view one of the floating structure of a robot vacuum cleaner roller brush according to the present invention;

8 is a second two-dimensional cross-sectional view of a floating structure of a robot vacuum cleaner roller brush according to the present invention;

FIG. 9 is a three-dimensional cross-sectional view three of the floating structure of a robot vacuum cleaner roller brush of the present invention;

10 is a schematic diagram of a walking mechanism of a robot vacuum cleaner according to the present invention;

11 is a schematic diagram of a scene of a robot vacuum cleaner applying the present invention;

FIG. 12 is a second schematic diagram of a scene of a robot vacuum cleaner applying the present invention.

Shown in the picture:

Robot vacuum cleaner body 100, dust box assembly placement part 1, roller brush assembly 2, side brush assembly 4, guide structure 6, roller brush timing pulley 21, roller brush rotating shaft 22, roller brush housing outlet 23, dust suction channel 24, Dust box connection port 26, side brush shaft 41, side brush shaft sleeve 42, side brush bearing 43, side brush 44, battery interface 50, first battery compartment 51, second battery compartment 52, guide sleeve 60, guide post 61, Limit screw 62, limit washer 63, auxiliary wheel 71, first moving wheel 72, second moving wheel 73, driving device 80, worm 81, worm wheel 82, worm wheel shaft 821, first bearing 83, side brush timing belt 84, Side brush timing pulley 85 , first rotating wheel 86 , rolling brush timing belt 87 , first visual sensor 91 , second visual sensor 92 , third visual sensor 93 , anti-drop visual sensor 94 , step 300 , detection area 400 .

Detailed ways

The present utility model will be further described in detail below with reference to the accompanying drawings. The foregoing and other objects, features, aspects and advantages of the present utility model will become more apparent, so that those skilled in the art can implement them with reference to the description. In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to refer to the same or like parts. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the size from top to bottom, "width" corresponds to the size from left to right, and "depth" corresponds to the size from front to back. These relative terms are for convenience of description and are generally not intended to require a specific orientation. Terms referring to attachment, coupling, etc. (eg, "connected" and "attached") refer to the fixed or attached relationship, as well as the movable or rigid attachment or relationship of these structures to each other, directly or indirectly, through intervening structures, unless The other way is explicitly stated.

Next, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, under the premise of no conflict, the embodiments or technical features described below can be combined arbitrarily to form new Example.

A transmission structure of a robot vacuum cleaner includes a roller brush transmission mechanism, a side brush transmission mechanism and a driving device 80 installed on a robot vacuum cleaner body 100, and also includes a synchronous transmission mechanism for connecting the roller brush transmission mechanism and the side brush transmission mechanism, so that the driving device 80 drives the rolling brush transmission mechanism and the side brush transmission mechanism at the same time, thereby driving the rolling brush assembly 2 and the side brush assembly 4 to rotate. In one embodiment, as shown in FIG. 2 , the roller brush assembly 2 and the side brush assembly 4 are arranged in a lateral direction; while ensuring a large cleaning efficiency, the force of the robot cleaning structure is maintained in the same lateral direction , to ensure that the robot runs smoothly.

In one embodiment, the driving device 80 drives the roller brush transmission mechanism, and the roller brush transmission mechanism drives the side brush transmission mechanism through a synchronous transmission mechanism, so that the side brush assembly 4 and the roller brush assembly 2 rotate simultaneously.

As shown in FIG. 2 and FIG. 11 , the driving device 80 is connected to the rolling brush transmission mechanism; the rolling brush transmission mechanism is connected to the rolling brush assembly 2 ; the driving device 80 is connected to the side brush transmission mechanism through a synchronous transmission mechanism ; The side brush transmission mechanism is connected to the side brush assembly 4; the synchronous transmission mechanism includes a worm 81 and a worm wheel 82; the worm 81 is connected to the drive device 80; As shown in 3, the worm wheel 82 is sleeved on the worm wheel shaft 821 and meshes with the worm 81 to realize transmission. The worm wheel 82 drives the side brush assembly 4 to rotate; the driving device 80 drives the worm 81 and the rolling brush transmission mechanism to rotate at the same time, and drives the side brush assembly 4 and the rolling brush to rotate at the same time. In this embodiment, the transmission structure of the synchronous transmission mechanism adopts the worm 81 and the worm wheel 82 to mesh with each other, which saves the side brush motor, reduces the overall control weight, and avoids the complex control of multiple motors, especially the use of multiple motors. It is easy to increase the probability of failure; Solve the problem of the huge multi-stage gear transmission structure, optimize the internal structure of the robot vacuum cleaner, apply the saved space to other structures, and improve the cleaning efficiency of the whole machine under the same structural size. In particular, the synchronous transmission mechanism may also include, but is not limited to, a multi-stage synchronous belt, a bevel gear set, and a rack and pinion.

In one embodiment, as shown in FIGS. 4 and 5 , the side brush transmission mechanism further includes a side brush timing belt 84 and a side brush timing belt pulley 85 ; The driving force is transmitted to the side brush timing pulley 85 ; the side brush timing pulley 85 drives the side brush assembly 4 to rotate. In this embodiment, the worm wheel 82 drives the worm wheel shaft and drives the pulley connected by the key of the worm wheel shaft, and the side brush timing belt 84 is driven by the pulley to drive the side brush timing pulley 85. Compared with the gear drive, the belt drive has a flexible center distance. The advantages of being adjustable and having little structural size change at the same time facilitate the layout of the structure of the side brush assembly 4 .

In one embodiment, as shown in FIGS. 3 and 5 , the rolling brush transmission mechanism includes a first rotating wheel 86 , a rolling brush timing belt 87 , a rolling brush timing belt pulley 21 , and a rolling brush rotating shaft 22 ; The rotating wheel 86 is connected with the output shaft of the driving device 80 ; the rolling brush timing belt 87 is connected with the first rotating wheel 86 and the rolling brush timing belt pulley 21 ; one end of the rolling brush rotating shaft 22 is fixedly connected with the rolling brush Assembly 2; the roller brush synchronous pulley 21 and the worm gear 82 are sleeved on the roller brush shaft 22 . In this embodiment, the first rotating wheel 86 is a gear, and further includes a first bearing 83 ; the first bearing 83 rotates and installs the roller brush shaft 22 on the inner casing of the robot vacuum cleaner body 100 .

The driving device 80 is a rotary motor; the rotational speed of the rotary motor is 5000rpm-8000rpm, and the transmission ratio of the first rotating wheel 86 to the brush timing pulley 21 is 1.5:1 to 3:1; the The transmission ratio of the worm 81 to the worm wheel 82 is 5:1-50:1. In one embodiment, preferably, the rotating speed of the rotating motor is 6900±690 rpm; the ratio of the first rotating wheel 86 to the brush timing pulley 21 is 2.3:1, and the rotating speed of the brush timing pulley 21 , the brush and the worm 81 is 3000±300rpm; the transmission ratio of the worm 81 and the worm wheel 82 is 20:1, the speed of the worm wheel 82 is 150±15rpm; the transmission ratio of the side brush timing belt 84 is 1:1, and the speed of the side brush is 150±15rpm. Since the worm gear 82 and the worm 81 have a large transmission ratio, the structural size of the multi-stage gear transmission is effectively reduced.

It should be understood that the roller brush transmission mechanism directly driven by the driving device 80 can also be replaced with a side brush transmission mechanism. In one embodiment, the driving device 80 drives a side brush transmission mechanism (not shown), the side brush The brush transmission mechanism drives the roller brush transmission mechanism through the synchronous transmission mechanism, so that the side brush assembly 4 and the roller brush assembly 2 rotate simultaneously.

The present invention further provides a robot vacuum cleaner, which includes a robot vacuum cleaner body 100 for ground cleaning, and the robot vacuum cleaner body 100 includes the robot vacuum cleaner transmission structure. As shown in FIG. 3 , it also includes a side brush assembly 4; the side brush assembly 4 includes a side brush shaft 41 and a side brush 44; the side brush 44 is fixedly connected to one end of the side brush shaft 41; the side brush timing pulley 85 is fixedly sleeved on the side brush shaft 41; the side brush timing pulley 85 drives the side brush shaft 41 to rotate. In this embodiment, the side brush shaft sleeve 42 is in contact with the side brush timing pulley 85 to prevent the brush timing pulley 85 from moving in the axial direction of the side brush shaft 41 , and the side brush shaft 41 is penetrated and fixed by the side brush bearing 43 . It is applied to the housing part of the cleaning robot body 100 .

A robot vacuum cleaner also includes a rolling brush floating structure, as shown in Figures 6-9, the rolling brush floating structure includes a rolling brush assembly 2 and a dust suction channel 24 sealingly connecting the rolling brush assembly 2 and the dust box of the robot vacuum cleaner , the roller brush assembly 2 is only accommodated in the accommodating space of the robot vacuum cleaner body 100 by the dust suction channel, and the dust vacuum channel 24 has a certain elasticity so that the roller brush assembly 2 is accommodated in the robot vacuum cleaner body 100 It is arranged in the accommodating space and can be floated in the vacuuming position. Preferably, a limit structure is also included, and the limit structure is used to limit the movement of the roller brush assembly 2 in the accommodation space of the robot vacuum cleaner body 100 .

In one embodiment, as shown in FIG. 8 , the dust suction channel 24 is flexibly connected to the roller brush dust suction channel of the roller brush assembly 2 . Specifically, the dust suction channel 24 is a rubber sealing cover. In this embodiment, the rubber sealing cover is preferably a leather tiger sealing cover. Accuracy of float movements. As shown in Figures 1 and 2, the dust collecting passage of the roller brush is set as a passage between the outlet 23 of the roller brush housing and the connection port 26 of the dust box. The dust box assembly is fixed relative to the robot vacuum cleaner, and the roller brush assembly 2 floats up and down inside the whole machine relative to the robot vacuum cleaner. As shown in FIG. 1 , the dust box assembly is installed in the dust box assembly placement portion 1 , and the internal accommodation space of the dust box assembly placement portion 1 is considerable.

As shown in FIGS. 6-9 , in one embodiment, a guide structure 6 is included, and the guide structure 6 includes a guide sleeve 60 arranged on the inner casing of the robot vacuum cleaner and a guide post 61 arranged on the roller brush housing 20 ; The guide sleeve 60 is provided with a cavity for accommodating the guide post 61, the guide sleeve 60 is sleeved on the outer periphery of the guide post 61; the guide post 61 reciprocates along the axis direction of the guide sleeve 60 ; The roller brush of the roller brush assembly 2 is installed in the roller brush housing 20, and the roller brush assembly 2 can reciprocate along the axis direction of the guide sleeve 60. In this embodiment, under the cooperative movement of the guide sleeve 60 and the guide post 61 , the roller brush assembly 2 can be floated up and down, which can better fit the ground and ensure the cleaning ability of the ground. At the same time, the distance between the roller brush and the ground is automatically adjusted according to the actual ground conditions. It should be understood that in this implementation, the floating structure of the rolling brush is ingeniously designed, and the adjustment structure of the floating range is small in size. The swing structure of elastic restoring force realizes floating within a certain range. Under the same floating range, the structure size of the swing structure is large, and the internal space is occupied too much, which is not conducive to the design of other structures of the whole machine. It should be understood that in another embodiment (not shown), the guide post 61 and the guide sleeve 60 can be arranged in interchangeable positions, that is, the guide sleeve 60 is set on the roller brush housing 20, and the guide post 61 is set on the internal machine of the robot vacuum cleaner. On the shell, the roller brush can also float up and down.

In a preferred embodiment, the outer contour of the rolling brush housing 20 of the rolling brush assembly 2 is in the shape of a semi-cylindrical arch, and the guide structure 6 extends upward from the top of the rolling brush assembly and is disposed at both ends or at least one end of the rolling brush assembly 2. The inner contour of the accommodating space at the front end of the vacuum cleaner is set as a semi-cylindrical shape that is arched toward the inner side of the robot vacuum cleaner, and is used for accommodating the roller brush assembly 2 to float on the inner side. The guide structure 6 passes upward through the front end of the sweeping robot and forms a suspension fixation. A gap is set between the roller brush housing and the front end receiving space of the robot vacuum cleaner, so that the roller brush housing can float in the front end receiving space of the robot vacuum cleaner. A soft rubber strip can be set in the gap to seal with the outside world, so that the dust and other sundries can be prevented from entering without affecting the floating of the roller brush housing.

In one embodiment, in order to prevent the inner structure of the robot vacuum cleaner from colliding and interfering with each other due to excessive relative movement of the guide post 61 and the guide sleeve 60, a limit structure is further included, and the limit structure is used to limit the guide post 61 in the The range of motion of the inner cavity of the guide sleeve 60 . Specifically, as shown in FIG. 9 , the limit structure includes a limit screw 62 and a limit washer 63 ; the limit screw 62 is fixed on the guide post 61 ; the upper part of the limit washer 63 The end face abuts the limit screw 62 , and the lower end face abuts the guide sleeve 60 .

In one embodiment, a compression spring (not shown in the figure) is further included, and the compression spring abuts against the guide post 61 and the guide sleeve 60 . The accuracy of the floating action of the roller brush is assisted by the restoring force of the compression spring.

In one embodiment, in order to provide multi-directional floating guidance of the rolling brush, the number of guide structures 6 is at least two. As shown in FIG. 7, the number of guide structures 6 is two. The inconsistency caused by the different ground heights on both sides of the robot vacuum cleaner makes the floating process more stable and flexible.

A robot vacuum cleaner also includes a walking mechanism, including two movable wheels and auxiliary wheels 71 that are driven independently of each other; along the forward direction of the robot vacuum cleaner, the auxiliary wheels 71 are arranged at the rear ends of the two movable wheels; the auxiliary wheels 71 and the two movable wheels are installed. on the bottom of the robot vacuum. As shown in FIG. 10 , the auxiliary wheel 71 is located on the central axis of the robot vacuum cleaner; the two movable wheels include a first movable wheel 72 and a second movable wheel 73 , and the auxiliary wheel and the first movable wheel 72 and the second movable wheel 73 jointly support the robot vacuum cleaner. , the auxiliary wheel and the first moving wheel 72 and the second moving wheel 73 are arranged in an isosceles triangle;

As shown in FIG. 1 and FIGS. 10-12 , the auxiliary wheel 71 , the first movable wheel 72 and the second movable wheel 73 form the three-point support for the robot vacuum cleaner. The first movable wheel 72 and the second movable wheel 73 are respectively connected to the driving device and installed on the bottom casing of the robot vacuum cleaner, the first moving wheel 72 and the second moving wheel 73 are controlled independently of each other, and the auxiliary wheel 71 is installed on the bottom casing of the robot vacuum cleaner; in the forward direction of the robot vacuum cleaner For the front direction, the auxiliary wheel 71 , the first moving wheel 72 and the second moving wheel 73 are all located at the rear of the rolling brush assembly 2 ; the auxiliary wheel 71 is located between the first moving wheel 72 and the second moving wheel 73 The rear of the connection axis of the driving wheel 73 . In this embodiment, the turning of the cleaning robot body 100 is realized by the differential rotation of the driving devices of the first moving wheel 72 and the second moving wheel 73 . As shown in FIG. 11 , when the distance measurement of the front part of the cleaning robot body 100 is performed The device detects that there is an obstacle 200 in the distance L ahead, and controls the rotational speed of the first moving wheel 72 to be higher than the rotational speed of the second moving wheel 73. At this time, the robot vacuum cleaner body 100 rotates relatively to the left side of the forward direction, and the auxiliary wheel 71 assists the steering; In one embodiment, the auxiliary wheel 71 is a universal wheel, which facilitates flexible movement and rapid steering of the cleaning robot body 100 .

In one embodiment, in order to balance the force of movement, the auxiliary wheel 71 is located on the vertical bisector of the connecting axis of the first movable wheel 72 and the second movable wheel 73, which is beneficial to maintain the first movable wheel 72. Consistent with the wear of the second driving wheel 73 , it is beneficial to the load balance of the driving motors of the first driving wheel 72 and the second driving wheel 73 , and to a certain extent, the versatility of the design is improved.

In one embodiment, as shown in FIG. 1 , the wheel spacing between the first moving wheel 72 and the second moving wheel 73 is not less than the length of the roller brush. Through the front structure of the roller brush assembly 2, in the case of a certain wheel spacing The size of the roller brush assembly 2 is sufficiently increased to improve the cleaning ability.

As shown in FIG. 10 , the cleaning robot body 100 further includes a first visual sensor 91 , a second visual sensor 92 , and a third visual sensor 93 installed at the bottom of the cleaning robot body 100 . The first visual sensor 91 is provided with at the front of the roller brush assembly 2; the second visual sensor 92 is arranged at the front of the first moving wheel 72; the third visual sensor 93 is arranged at the front of the second moving wheel 73; wherein, the first visual sensor 91, the second The visual sensor 92 and the third visual sensor 93 are respectively used to detect whether there is a step 300 in the front of the roller brush assembly 2, the front of the first moving wheel 72, and the front of the second moving wheel 73 during the moving process of the robot vacuum cleaner body 100. When a step is detected, the robot vacuum cleaner body 100 stops moving forward; the robot vacuum cleaner body 100 also includes an anti-drop visual sensor 94 installed at the bottom of the robot vacuum cleaner body 100, and the anti-drop visual sensor 94 is arranged on the first A moving wheel 72 is connected to the rear of the second moving wheel 73 . In one implementation, as shown in FIG. 12 , when the robot vacuum cleaner body 100 is in the process of retreating, when a step 300 appears in the detection area 400 of the anti-drop visual sensor 94, the robot vacuum cleaner body 100 stops retreating, and the first moving wheel 72 and the The second moving wheel 73 stops moving to prevent the auxiliary wheel 71 from falling off the steps 300 .

In one implementation, specifically, the first visual sensor 91 , the second visual sensor 92 , the third visual sensor 93 , and the anti-drop visual sensor 94 are infrared sensors or photoelectric sensors. The step 300 is judged by the difference of feedback infrared or photoelectric signals, and the response is quick and the sensitivity is high.

In one embodiment, as shown in FIGS. 1 and 10 , the robot vacuum cleaner body 100 further includes a first battery compartment 51 and a second battery compartment 52 for placing batteries. As shown in FIG. 6 , the first battery compartment 51 and the second battery compartment 52 are connected to the robot vacuum cleaner body 100 through the battery interface 50. The dual battery compartment design increases the battery life of the robot vacuum cleaner body 100, reduces the number of charging times, and increases cleaning. scope.

In one embodiment, as shown in FIG. 10 , the first battery compartment 51 and the second battery compartment 52 are symmetrically distributed relative to the vertical bisector of the connecting axis of the first moving wheel 72 and the second moving wheel 73 , and symmetrical battery compartments are used. The design improves the overall balance of the robot vacuum cleaner body 100 and reduces the counterweight design.

In an embodiment, as shown in FIG. 10 , the robot vacuum cleaner body 100 further includes a side brush assembly 4 ; In this embodiment, a single-side side brush design is adopted, that is, the side brush assembly 4 is arranged on the right side of the forward direction of the robot vacuum cleaner body 100, and the side brush of the side brush assembly rotates counterclockwise to send the sundries to the roller brush assembly 2. , at the same time, the robot vacuum cleaner body 100 preferentially turns left during the forward process, and cleans the boundary along the edge.

The utility model saves the motor, the overall control is lightweight, avoids the complex control of multiple motors, especially the use of multiple motors is easy to increase the probability of failure; at the same time, the problem of the huge multi-stage gear transmission structure is solved, and the internal structure of the robot vacuum cleaner is optimized. The space is used in other structures to improve the cleaning efficiency of the whole machine under the same structural size. The utility model has ingenious design and reasonable structure, which is convenient for the popularization and application of the robot vacuum cleaner.

The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form; any person of ordinary skill in the industry can smoothly implement the present utility model as shown in the accompanying drawings and above; However, within the scope of the technical solution of the present invention, any changes, modifications and equivalent changes made by those skilled in the art using the technical contents disclosed above are equivalent to the present invention. At the same time, any alteration, modification and evolution of any equivalent changes made to the above embodiment according to the essential technology of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a robot cleaner transmission structure, is including installing in round brush drive mechanism, limit brush drive mechanism and drive arrangement (80) of robot dust absorption body (100), its characterized in that: the automatic edge brush device is characterized by further comprising a synchronous transmission mechanism, wherein the synchronous transmission mechanism is used for connecting the rolling brush transmission mechanism and the edge brush transmission mechanism, so that the driving device (80) drives the rolling brush transmission mechanism and the edge brush transmission mechanism simultaneously, and then the rolling brush assembly (2) and the edge brush assembly (4) are driven to rotate.

2. The transmission structure of a robot cleaner according to claim 1, wherein: the driving device (80) drives the rolling brush transmission mechanism, and the rolling brush transmission mechanism drives the side brush transmission mechanism through the synchronous transmission mechanism so that the side brush assembly (4) and the rolling brush assembly (2) rotate simultaneously.

3. A robot cleaner transmission structure according to claim 1 or 2, wherein: synchronous drive mechanism includes intermeshing's worm wheel (82) and worm (81), worm (81) with round brush drive mechanism rigid coupling sets up, worm wheel (82) with limit brush drive mechanism rigid coupling sets up.

4. A robot cleaner transmission structure according to claim 3, wherein: the roller brush transmission mechanism comprises a first rotating wheel (86) arranged on the driving device (80), a roller brush synchronous belt wheel (21) and a roller brush synchronous belt (87), wherein the first rotating wheel (86) of the driving device (80) drives the roller brush synchronous belt (87) to drive the roller brush synchronous belt wheel (21) to rotate.

5. The transmission structure of a robot cleaner according to claim 4, wherein: the side brush transmission mechanism comprises a side brush synchronous belt (84) and a side brush synchronous belt wheel (85), the driving device (80) drives the rolling brush synchronous belt (87) to drive the side brush synchronous belt wheel (85) to rotate.

6. The transmission structure of a robot cleaner according to claim 5, wherein: the rolling brush synchronous belt wheel (21) is coaxially arranged with the worm (81) through a rolling brush rotating shaft (22), and the rolling brush synchronous belt wheel (21) drives the worm (81) to rotate together when rotating; and the worm wheel meshed with the worm (81) drives the side brush synchronous belt wheel (85) to rotate simultaneously through the rolling brush synchronous belt (87).

7. The transmission structure of a robot cleaner according to claim 4, wherein: the transmission ratio of the first rotating wheel (86) to the roller brush synchronous pulley (21) is 1.5: 1 to 3: 1.

8. a robot cleaner transmission structure according to claim 3, wherein: the transmission ratio of the worm (81) to the worm wheel (82) is 5: 1-50: 1.

9. the transmission structure of a robot cleaner according to claim 2, wherein: the driving device (80) drives the side brush transmission mechanism, and the side brush transmission mechanism drives the rolling brush transmission mechanism through the synchronous transmission mechanism; so that the side brush component (4) and the rolling brush component (2) rotate simultaneously.

10. A robot cleaner including a robot cleaner body (100) for floor cleaning, characterized in that: the robot cleaner body (100) comprises a robot cleaner transmission structure according to any one of claims 1 to 9.

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