Gear speed change transmission device of surface treatment equipment and surface treatment equipment

Abstract

The present invention discloses a gear speed change transmission device of a surface treatment equipment and a surface treatment equipment, wherein the gear speed change transmission device comprises: a gear box housing cover; a gear box housing having a drive input port; a gear set arranged in the gear box housing; and an output shaft connected to the gear set, used to drive the cleaning turntable of the surface treatment equipment to rotate, the output shaft comprising a first suction channel, which is formed by a first opening located at the lower end of the output shaft, a second opening located at the upper end of the output shaft and the inner wall of the output shaft; a third opening is arranged at a position corresponding to the second opening of the gear box housing, so as to introduce suction force into the first suction channel from the third opening outside the gear box housing. This technical solution avoids the technical problems in the related art that the relative rotation of the cleaning turntable and the lower shell of the surface treatment equipment leads to poor suction effect, and that the cleaning turntable rotates poorly due to fine dust. And it has the advantage of modularization, which is convenient for the assembly and maintenance of the surface treatment equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of surface treatment equipment, and in particular to a gear speed change transmission device of surface treatment equipment and the surface treatment equipment. Background Art

[0002] Surfaces such as glass and building walls are easily contaminated by particles in the air, and therefore need to be cleaned frequently. In the related art, a cleaning machine is used to clean surfaces such as glass and building walls.

[0003] In the related art, Chinese patent CN102920393B discloses a cleaning machine and a path control method thereof, wherein the cleaning machine comprises at least one cleaning element, a pump module, a drive module and a control system. At least one cleaning element and the plate define at least one space. The pump module extracts air from the at least one space so that the cleaning element is adsorbed on the plate. The drive module drives the at least one cleaning element. The control system is coupled to the pump module and the drive module, and controls the at least one cleaning element driven to generate a displacement on the plate.

[0004] See the attached document of Chinese patent CN102920393B. Figure 1 , the pump module extracts the air between the cleaning element and the plate, but as the patent appended Figure 1 As shown, the cleaning element is fixedly connected to the driving module and rotates under the drive of the driving module. The air flow channel through which the pump module extracts air is composed of the cover plate of the driving module and the lower shell of the cleaning machine. The lower shell has multiple air inlet holes, and the cleaning element has multiple air inlet holes and is connected to the lower shell, so that the air between the cleaning element and the plate can be extracted by the pump module. However, since the cleaning element has to rotate relative to the lower shell of the cleaning machine, the sealing of the connection between the lower shell and the cleaning element is not strong, which reduces the air extraction effect and makes it difficult to form effective suction; and the connection part is easily affected by dust, etc., which causes the cleaning element to rotate poorly, thereby affecting the cleaning effect. As shown in the attached patent Figure 1 As shown in FIG. 1 , the connection portion is exposed outside the cleaning machine, making it easier for dust to enter the connection portion, thereby affecting the rotation of the cleaning element. Figure 1 , 2 As shown, the air flow channel through which the pump module of the patent extracts air makes the housing and drive module of the cleaning machine highly integrated, which is not conducive to mass production and fault repair.

[0005] To solve this problem, the common practice in the related art is to increase the power of the pump module and use a high-speed motor, but this solution increases the cost of the pump module, and the high-speed motor will also cause noise pollution; in order to prevent the connection between the lower shell and the cleaning element from being affected by dust, etc., the related art achieves this by improving the connection effect, but this method makes the connection method too complicated.

[0006] Further, see the appendix of Chinese patent CN102920393B Figure 2 and 3 The cleaning machine includes two cleaning elements. To ensure the cleaning effect, the plate is usually wiped repeatedly. However, repeated wiping reduces the cleaning efficiency and doubles the time required for cleaning. Therefore, the user needs to wait longer and the cleaning machine requires more battery power. How to improve the cleaning efficiency while ensuring the cleanliness has become an urgent problem to be solved. Summary of the invention

[0007] The object of the present invention is to provide a gear speed change transmission device for a surface treatment device and a surface treatment device, so as to at least solve the technical problem that the air flow channel of the surface treatment device in the prior art is insufficient.

[0008] According to one aspect of the present invention, a gear speed change transmission device of a surface treatment equipment is provided, comprising: a gear box housing cover; a gear box housing having a drive input port; a gear set arranged in the gear box housing; and an output shaft connected to the gear set, for driving a cleaning turntable of the surface treatment equipment to rotate, the output shaft comprising a first suction channel, the first suction channel being formed by a first opening located at the lower end of the output shaft, a second opening located at the upper end of the output shaft and an inner wall of the output shaft; a third opening is provided in the gear box housing at a position corresponding to the second opening, so as to introduce suction force into the first suction channel from the third opening outside the gear box housing; wherein, during the surface treatment process, the airflow is sucked from the first opening into the first suction channel through the suction force to form a negative pressure, so that the cleaning turntable is adsorbed on the surface.

[0009] Optionally, the gearbox housing further includes: a second suction channel extending outward from the third opening, wherein the second suction channel is located at one end of the third opening and is in close communication with the first suction channel, and the other end of the second suction channel is in close communication with the suction side.

[0010] Optionally, the second suction channel includes: an airflow groove extending outward from the third opening, and an airflow cover, wherein the airflow cover is tightly connected to the airflow groove to form the second suction channel.

[0011] Optionally, the second suction channel extends outward from the third opening and gradually expands.

[0012] Optionally, an angle between the first suction channel and the second suction channel is less than 180 degrees.

[0013] Optionally, the output shaft is fixedly connected to the cleaning turntable, and the cleaning turntable has a fourth opening corresponding to the first opening, and the gas between the inner wall and the surface of the cleaning turntable is sucked into the first suction channel through the fourth opening by suction.

[0014] Optionally, the gearbox housing cover is located on the lower side of the gear change transmission device, and the gearbox housing is located on the upper side of the gear change transmission device.

[0015] Optionally, the output shaft is connected to the gearbox housing via a first bearing, and is connected to the gearbox housing cover via a second bearing.

[0016] According to another aspect of the present invention, a driving device for a surface treatment equipment is provided, comprising: a driving unit; and a gear speed change transmission device for the surface treatment equipment as described above; wherein the output end of the driving unit enters the gear speed change transmission device from a driving input port on a gear box housing of the gear speed change transmission device, and is connected to a gear set located in the gear box housing.

[0017] According to another aspect of the present invention, there is provided a surface treatment device, comprising: at least two driving devices of the above-mentioned surface treatment devices.

[0018] The gear speed change transmission device provided by the present invention combines the suction channel of the surface treatment equipment while transmitting, and can be applied to the surface treatment equipment to avoid the technical problems in the related art that the cleaning turntable and the lower shell of the surface treatment equipment rotate relative to each other, resulting in poor suction effect, and the cleaning turntable rotates poorly due to dust. In addition, the gear speed change transmission device has the advantage of modularization, which is convenient for assembly and maintenance of the surface treatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a driving device according to an embodiment of the present invention;

[0020] Figure 2 An assembly diagram of a gear speed change transmission device according to an embodiment of the present invention;

[0021] Figure 3 An exploded view of a gear speed change transmission device according to an embodiment of the present invention;

[0022] Figure 4 The structure of the air extraction channel structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 5 The structure of the air extraction channel structure of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 6A schematic diagram of the structure of a cleaning turntable according to an embodiment of the present invention;

[0025] Figure 7 A schematic structural diagram of a surface treatment device according to an embodiment of the present invention;

[0026] Figure 8 A schematic diagram of the positional relationship of the cleaning turntable of the surface treatment equipment according to an embodiment of the present invention; and

[0027] Fig. 9 It is a structural schematic diagram of the exhaust channel structure of the surface treatment equipment according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] This embodiment provides a driving device for a surface treatment device, such as Figure 1 As shown, the driving device includes: a driving unit 10 and an output shaft 20. The output shaft 20 is connected to the driving unit 10 and fixedly connected to the cleaning turntable of the surface treatment equipment, and is used to make the cleaning turntable rotate with the output shaft 20. The lower end of the output shaft 20 is provided with an opening 21, and the upper end of the output shaft 20 is provided with an opening 22. The opening 21 at the lower end of the output shaft 20, the opening 22 at the upper end and the inner wall of the output shaft 20 form a suction channel 30.

[0030] During the surface treatment process, air flow is sucked from the opening 21 into the suction channel 30 by applying suction force from the opening 22 (see Figure 1 Arrow) to form negative pressure, so that the cleaning turntable is adsorbed to the surface.

[0031] Through this embodiment, the driving device includes a driving unit 10 and an output shaft 20, and a suction channel 30 is arranged in the output shaft 20. During the surface treatment process, a suction force is applied from the opening 22 to suck the airflow from the opening 21 into the suction channel 30 to form a negative pressure, so that the cleaning turntable is adsorbed on the surface. Since the cleaning turntable rotates with the output shaft 20, the technical problems in the related art, such as the relative rotation of the cleaning turntable and the lower shell of the surface treatment equipment resulting in poor suction effect, and the poor rotation of the cleaning turntable due to dust, are avoided.

[0032] In certain embodiments, Figure 1As shown, the drive device further includes a housing 40, the output shaft 20 is disposed in the housing 40, and the housing 40 has an opening 41. The output end 11 of the drive unit 10 enters the housing 40 through the opening 41 and is connected to the output shaft 20 in the housing 40. Through this embodiment, the output end 11 of the drive unit 10 is connected to the output shaft 20 in the housing, which is conducive to encapsulating the output end 11 and the output shaft 20, thereby avoiding the problem of poor rotation caused by external dust. In addition, the modularization of the drive device is realized, which is conducive to assembly and later maintenance.

[0033] In some embodiments, the drive device further includes a transmission gear set 42, which is disposed in the housing 40, and the transmission gear set 42 is connected to the output end 11 of the drive unit 10, and the output shaft 20 is connected to the transmission gear set 42. Through this embodiment, the output end 11 of the drive unit 10 is connected to the output shaft 20 in the housing, which is conducive to encapsulating the output end 11, the transmission gear set 42, and the output shaft 20, thereby avoiding the problem of poor rotation caused by external dust. In addition, the modularization of the drive device is achieved, which is conducive to assembly and later maintenance.

[0034] In certain embodiments, Figure 1 As shown, the driving device includes a housing 40, and the housing 40 is provided with a suction channel 43, one end of the suction channel 43 is sealed and connected with one side of the opening 22 of the suction channel 30 of the output shaft 20 located at the upper end of the output shaft 20, and the other end of the suction channel 43 is arranged at the suction side 50, wherein the airflow is sucked into the suction channel 30 and the suction channel 43 from the opening 21 in sequence by applying suction from the suction side 50. Through this embodiment, it is convenient to connect with the suction side 50, especially when multiple driving devices drive the surface treatment equipment, multiple independent suction channels can be formed.

[0035] In certain embodiments, Figure 1 As shown, the driving device includes a shell 40 and a transmission gear set 42, the output shaft 20 is arranged in the shell 40, the shell 40 includes an upper shell 44 and a lower shell 45, the upper shell 44 has an opening 41, the output end 11 of the driving unit 10 enters the shell 40 through the opening 41, and is connected to the transmission gear set 42 in the shell 40, the output shaft 20 is connected to the transmission gear set 42, and the upper shell 44 has an opening 46 corresponding to the opening 22 of the output shaft 20 and is in close communication with it, so as to apply suction from the opening 46 outside the shell 40.

[0036] In some embodiments, the upper shell 44 has a suction channel 43 extending from the opening 46 to the suction side 50, wherein the airflow is sequentially introduced into the suction channel 30 and the suction channel 43 from the opening 21 of the output shaft 20 by suction. In this embodiment, the suction channel 43 is disposed on the upper shell 44.

[0037] In certain embodiments, Figure 1 As shown, the suction channel 43 includes: an airflow groove 441 provided on the upper shell 44 and an airflow cover 442 capable of being tightly connected to the airflow groove 441. It should be understood that the present embodiment is not limited thereto.

[0038] In some embodiments, the suction channel 43 extends and gradually expands toward the suction side 50. This embodiment is conducive to the suction of airflow, thereby generating sufficient negative pressure.

[0039] In some embodiments, the lower end of the output shaft 20 is provided with a plurality of mounting holes, which are used to fix the cleaning disc on the output shaft 20. It should be understood that any mounting mechanism that fixes the output shaft 20 to the cleaning disc is feasible, and this embodiment does not limit this.

[0040] In some embodiments, the upper portion of the output shaft 20 is rotatably connected to the housing 40 via a bearing, and the lower portion of the output shaft 20 is rotatably connected to the housing 40 via a bearing. It should be understood that other rotatable connection methods are also feasible, and this embodiment is not limited thereto.

[0041] In some embodiments, the cleaning turntable has an opening corresponding to the opening 21 of the output shaft 20, and the gas between the inner wall and the surface of the cleaning turntable is sucked into the suction channel 30 of the output shaft 20 through the opening of the cleaning turntable by suction. In some embodiments, the gas between the inner wall and the surface of the cleaning turntable is sucked into the suction channel 30 and the suction channel 43 of the output shaft 20 through the opening of the cleaning turntable by suction.

[0042] This embodiment also provides a gear speed change transmission device for a surface treatment device, such as Figure 2 , Figure 3 As shown, the gear speed transmission device includes: a gear box housing cover 200; a gear box housing 210, having a drive input port 211; a gear set 220, which is arranged in the gear box housing 210; and an output shaft 230, which is connected to the gear set 220 and is used to drive the cleaning turntable of the surface treatment device to rotate. The output shaft 230 includes a suction channel 231, which is formed by an opening 232 located at the lower end of the output shaft 230, an opening 233 located at the upper end of the output shaft 230, and the inner wall of the output shaft 230. The gear box housing 210 is provided with an opening 212 at a position corresponding to the opening 233 of the output shaft 230, so as to introduce suction force from the opening 212 to the suction channel 231 of the output shaft 230 outside the gear box housing 210. In the surface treatment process, the airflow is sucked into the suction channel 231 from the opening 232 at the lower end of the output shaft 230 by the suction force to form a negative pressure, so that the cleaning turntable is adsorbed on the surface.

[0043] The gear speed change transmission device of this embodiment combines the suction channel of the surface treatment equipment while transmitting, and can be applied to the surface treatment equipment, avoiding the technical problems in the related art that the cleaning turntable and the lower shell of the surface treatment equipment rotate relative to each other, resulting in poor suction effect, and the cleaning turntable rotates poorly due to dust. In addition, the gear speed change transmission device has the advantage of modularization, which is convenient for the assembly and maintenance of the surface treatment equipment.

[0044] In certain embodiments, Figure 2 , 3 As shown, the gearbox housing 210 further includes: a suction channel 213 extending outward from its opening 212 , wherein one end of the suction channel 213 at the opening 212 is in close communication with the suction channel 231 of the output shaft 230 , and the other end of the suction channel 213 is in close communication with the suction side.

[0045] In certain embodiments, Figure 2 , 3 As shown, the suction channel 213 on the gear box housing 210 includes: an airflow groove 2131 extending outward from the opening 212 , and an airflow cover 2132 , and the airflow cover 2132 is tightly connected to the airflow groove 2131 to form the suction channel 213 .

[0046] In certain embodiments, Figure 2 , 3 As shown, the suction channel 213 on the gearbox housing 210 extends outward from the opening 212 thereof and gradually expands.

[0047] In some embodiments, the angle between the suction channel 231 on the output shaft 230 and the suction channel 213 on the gearbox housing 210 is less than 180 degrees. It should be understood that the angle can be set according to actual needs, preferably, it can be set to about 90 degrees, and a smooth transition surface is set at the transition portion between the suction channel 231 and the suction channel 213.

[0048] In some embodiments, the output shaft 230 is fixedly connected to the cleaning turntable, and the cleaning turntable has an opening corresponding to the opening 232 at the lower end of the output shaft 230. The gas between the inner wall and the surface of the cleaning turntable is sucked into the suction channel 231 on the output shaft 230 through the opening by suction, and can further enter the suction channel 213 on the gear box housing 210.

[0049] In some embodiments, the gearbox housing cover 200 is located at the lower side of the gear speed change transmission device, and the gearbox housing 210 is located at the upper side of the gear speed change transmission device. The gearbox housing cover 200 has an opening, and the opening of the gearbox housing cover 200 allows the lower end of the output shaft 230 to extend outside the gearbox housing cover 200, but is not limited thereto.

[0050] In certain embodiments, the output shaft 230 is connected to the gearbox housing 210 via a first bearing 240 , and is connected to the gearbox housing cover 200 via a second bearing 250 .

[0051] like Figure 2 , 3 The gear speed change transmission device of the surface treatment equipment shown can be used as a preferred embodiment of the driving device of the aforementioned embodiment, but the driving device of the aforementioned embodiment is not limited thereto. It should be understood that any method of setting the suction channel on the output shaft connected to the cleaning turntable is feasible, and the simple conversion embodiment will not be described in detail here.

[0052] In some embodiments, a mounting mechanism may be provided on the gearbox housing cover 200 to mount the gear speed change transmission device in the surface treatment device. A mounting mechanism may be provided on the gearbox housing 210, and after the output end of the drive unit is introduced from the drive input port 211 into the gear speed change transmission device and connected to the gear set 220 in the gearbox housing 210, the drive unit is fixedly connected to the gearbox housing 210 through the mounting mechanism. It should be understood that other mounting mechanism arrangements are also feasible, and the present embodiment is not limited thereto. Optionally, the drive unit may include a motor.

[0053] It should be understood that the gear speed change transmission device may further include one or more components, for example, a mounting mechanism arranged according to actual needs, etc., which will not be elaborated in this embodiment.

[0054] This embodiment also provides an air extraction channel structure of a surface treatment device, such as Figure 4 As shown, the suction channel structure includes: an inlet channel 300, located at the inlet side, and the inlet channel 300 is formed by an opening 311 at the lower end of the output shaft 310, an opening 312 at the upper end, and an inner wall of the output shaft 310. The output shaft 310 is used to be driven by a driving unit to drive the cleaning turntable of the surface treatment device to rotate. During the surface treatment process, the airflow is introduced into the inlet channel 300 from the opening 311 at the lower end of the output shaft 310 by suction to form a negative pressure, so that the cleaning turntable is adsorbed on the surface.

[0055] Through this embodiment, the exhaust channel structure of the surface treatment device, such as the output shaft, is realized, thereby avoiding the technical problems in the related art that the relative rotation of the cleaning turntable and the lower shell of the surface treatment device leads to poor suction effect, and the poor rotation of the cleaning turntable due to dust.

[0056] In certain embodiments, Figure 3 As shown, the air extraction channel structure also includes: an intake channel 400 located between the intake side and the intake channel 300 , the intake channel 400 is formed by a shell 410 carrying the output shaft 310 , and the intake channel 400 is in closed communication with the intake channel 300 .

[0057] In certain embodiments, Figure 3 As shown, the suction channel 400 is formed by a closed connection between an airflow groove 401 and an airflow cover 402 on the upper shell 411 of the shell 410 and extending from the opening 312 at the upper end of the output shaft 310 to the suction side.

[0058] In some embodiments, the suction passage 400 extends from the opening 312 at the upper end of the output shaft 310 toward the suction side and gradually expands.

[0059] In some embodiments, the housing 410 further has an opening 413 for the output end of the driving unit to enter the housing 410 and connect to the output shaft 310 in the housing 410 .

[0060] In certain embodiments, reference Figure 3 The upper portion of the output shaft 310 is rotatably connected to the upper shell of the housing 410 through a first bearing, and the lower portion of the output shaft 310 is rotatably connected to the lower shell of the housing 410 through a second bearing.

[0061] In some embodiments, the suction channel structure includes N suction channels 300, each suction channel 300 corresponds to a cleaning turntable, wherein N is a natural number greater than or equal to 2. Each suction channel 300 is formed by an opening 311 at the lower end of an output shaft 310 of a driving device, an opening 312 at the upper end, and an inner wall of the output shaft 310. Each driving device drives a cleaning turntable.

[0062] In certain embodiments, Figure 5 As shown, the exhaust channel structure includes N ( Figure 5 In the embodiment of the present invention, there are three (3) suction channels 300 and N suction channels 400, wherein each suction channel 300 and suction channel 400 corresponds to a cleaning rotary disk, wherein N is a natural number greater than or equal to 2. Each suction channel 300 is formed by an opening 311 at the lower end of an output shaft 310 of a driving device, an opening 312 at the upper end and the inner wall of the output shaft 310. Each suction channel 400 is formed by the housing of a driving device. Each driving device drives a cleaning rotary disk.

[0063] In some embodiments, the angle between the suction channel 300 and the suction channel 400 is less than 180 degrees. Preferably, the angle can be set to about 90 degrees.

[0064] In some embodiments, the output shaft 310 is fixedly connected to the cleaning turntable, and the cleaning turntable has an opening corresponding to the opening 311 at the lower end of the output shaft 310, and the gas between the inner wall and the surface of the cleaning turntable is sucked into the suction channel 300 through the opening by suction. In some embodiments, the gas can further enter the suction channel 400.

[0065] This embodiment also provides a cleaning turntable of a surface treatment device, such as Figure 6 As shown, it includes a turntable body 500 for mounting a cleaning towel (not shown in the figure). The turntable body 500 is provided with: a mounting mechanism 510 for connecting with the output shaft of the surface treatment equipment (see Figures 1 to 4 ) is fixedly connected so that the cleaning turntable rotates with the rotation of the output shaft; and, the opening 520, when connected to the lower end of the output shaft through the mounting mechanism 510, the opening 520 on the turntable body 500 is aligned with the opening at the lower end of the output shaft of the surface treatment device (see Figures 1 to 4 The gas between the inner wall 530 and the surface of the turntable body 500 is introduced into the suction channel by applying suction (see Figures 1 to 4 As shown) to generate negative pressure, so that the cleaning turntable is adsorbed to the surface.

[0066] In some embodiments, the mounting mechanism 510 is a plurality of mounting holes disposed around the opening 520, and the plurality of mounting holes are provided for fasteners to pass through and to be connected to the output shaft of the driving device (see Figures 1 to 4 )Fixed connection.

[0067] In some embodiments, the opening 520 on the turntable body 500 is a circular opening, but is not limited thereto.

[0068] In some embodiments, a plurality of reinforcing ribs 550 are disposed on the surface of the turntable body 500 to enhance the strength of the cleaning turntable.

[0069] In some embodiments, there may be multiple openings 520 on the turntable body 500. There may be multiple openings at the lower end of the output shaft of the driving device.

[0070] In some embodiments, the inner wall of the turntable body 500 has an airflow space that contracts from the outer circumference of the turntable body 500 toward the opening 520 .

[0071] In certain embodiments, a cleaning device for a surface treatment apparatus comprises: Figure 6 The cleaning turntable and the cleaning towel disposed on the turntable body 500 are shown.

[0072] This embodiment also provides a surface treatment device, such as Figure 7As shown, the surface treatment device includes: a main body 600, three cleaning turntables 610, and three driving devices 620, which are arranged on the main body 600 and are used to drive the corresponding cleaning turntables 610 to rotate relative to the main body 600 with the output shaft of the driving device 620 as the rotation center, wherein the three rotation centers are located at the vertices of the triangle; an air extraction device 630, which is arranged on the main body 600, and the suction side of the air extraction device 630 is in close communication with the three cleaning turntables 610, and is used to generate negative pressure by exhausting air, so that the cleaning turntables 610 are adsorbed on the surface. A control system 640 is electrically connected to the air extraction device 630 and the three driving devices 620, and is used to control the air extraction device 630 to generate negative pressure, control two of the three driving devices 620 to rotate and the remaining one driving device 620 to be stationary, so that the surface treatment device moves on the surface.

[0073] Through the surface treatment device, two of the three driving devices 620 (output shafts) are controlled to rotate and the remaining one driving device 620 (output shaft) is stationary, so that the surface treatment device moves on the surface, and then during the movement, the two moving cleaning turntables 610 can clean an area once respectively, and then achieve two cleanings of an area in one movement, which greatly improves the cleaning effect. In addition, since the three cleaning turntables 610 are adsorbed on the surface, the surface treatment device can be more stably adsorbed on the surface, preventing the surface treatment device from falling off the surface.

[0074] In this embodiment, the exhaust device 630 may be composed of a motor and a fan, but this embodiment is not limited thereto, and any structure capable of sucking gas through the suction side and discharging it through the discharge side is feasible, which will not be elaborated in this embodiment.

[0075] In this embodiment, the control system 640 may include a processor, a memory and a peripheral circuit. The memory can store a computer program, the processor executes the computer program, and the peripheral circuit is electrically connected to the driving device 620 and the exhaust device 630 to send a driving signal to the driving device 620 and the exhaust device 630.

[0076] In certain embodiments, Figure 8 As shown, the three cleaning turntables 610 are of equal size, and the three rotation centers are located at the vertices of an equilateral triangle. In this embodiment, since the three cleaning turntables 610 are located at the three vertices of an equilateral triangle, it is convenient for the control system 640 to control the surface treatment device to move on the surface, reducing the control difficulty.

[0077] In some embodiments, the peripheries of the three cleaning disks 610 are tangent and can rotate with corresponding rotation centers. This embodiment reduces the area that is missed during the surface treatment process and improves the cleaning efficiency. It should be understood that the "tangent" described in this embodiment is close to "tangent" rather than tangent in the mathematical sense, and its purpose is to reduce the gap between the three cleaning disks 610.

[0078] In certain embodiments, Fig. 9 As shown, each cleaning suction cup 610 is in sealed communication with the suction side of the air extraction device 630 via the corresponding suction channel 650, and the three suction channels 650 are independent of each other. The independent suction channels improve the air extraction efficiency, so that the surface treatment device can be more stably adsorbed on the surface, and the surface treatment device is prevented from falling off the surface.

[0079] In certain embodiments, Figure 7 As shown, the main body 600 includes an upper shell 601 and a lower shell 602, a cleaning disc 610 is arranged outside the lower shell 602, and a driving device 620 and an air extraction device 630 are arranged between the upper shell 601 and the lower shell 602. Three suction channels 650 are arranged between the upper shell 601 and the lower shell 602, and the cleaning disc 610 is fixedly connected to the output shaft of the driving device through a through hole arranged in the lower shell 602, as shown in FIG. Figure 7 As shown, the upper shell 601 is provided with one or more exhaust ports 6011 , and the exhaust side of the air extraction device 630 is in communication with the exhaust ports 6011 .

[0080] In certain embodiments, Fig. 9 As shown, a closed communication structure 6021 is provided on the lower shell 602, and the closed communication structure 6021 is connected to the three suction channels 650 and the suction side 632 of the suction device 630, so as to form a suction channel structure for the suction device 630 to apply suction. Fig. 9 The air is sucked in by the suction device 630 in the direction of the arrow shown.

[0081] In certain embodiments, reference Figure 1As shown, each driving device 620 may include: a driving unit 10; an output shaft 20, connected to the driving unit 10 and fixedly connected to the corresponding cleaning disc 610, for making the cleaning disc 610 rotate with the output shaft 20, an opening 21 is provided at the lower end of the output shaft 20, an opening 22 is provided at the upper end of the output shaft 20, the opening 21 at the lower end of the output shaft 20, the opening 22 at the upper end and the inner wall of the output shaft 20 form a suction channel 30, and the suction channel 30 is arranged on the suction side of the air extraction device 630. During the surface treatment process, the air extraction device 630 applies suction force from the opening 22 at the upper end of the output shaft 20 to suck the airflow from the opening 21 at the lower end of the output shaft 20 into the suction channel 30 to form a negative pressure, and discharges it from the discharge side of the air extraction device 630, so that the cleaning disc 610 is adsorbed on the surface.

[0082] In certain embodiments, reference Figure 1 As shown, each driving device 620 may also include a shell 40 and a transmission gear set 42, the output shaft 20 is arranged in the shell 40, the shell 40 has an opening 41, the output end 11 of the driving unit 10 enters the shell 40 through the opening 41 of the shell 40 and is connected to the transmission gear set 42 in the shell 40, and the output shaft 20 is connected to the transmission gear set 42.

[0083] In certain embodiments, reference Figure 1 As shown, each driving device 620 may include a housing 40, and the housing 40 is provided with an inhalation channel 43, one end of the inhalation channel 43 is in sealed communication with one side of the opening 22 of the inhalation channel 30 located at the upper end of the output shaft 20, and the other end of the inhalation channel 43 is arranged at the inhalation side of the air extraction device 630, wherein the airflow is inhaled into the inhalation channel 30 and the inhalation channel 43 in sequence from the opening 21 at the lower end of the output shaft 20 by applying suction force from the inhalation side. The inhaled airflow is discharged through the discharge side of the air extraction device 630, with reference to Figure 7 The upper shell 601 is provided with one or more exhaust ports 6011, and the airflow is discharged from the one or more exhaust ports 6011 to the outside of the surface treatment device after passing through the exhaust side.

[0084] In certain embodiments, reference Figure 1 As shown, the driving device 620 also includes a shell 40 and a transmission gear set 42. The output shaft 20 is arranged in the shell 40. The shell 40 includes an upper shell 44 and a lower shell 45. The upper shell 44 has an opening 41. The output end 11 of the driving unit 10 enters the shell 40 through the opening 41 on the upper shell 44 and is connected to the transmission gear set 42 in the shell 40. The output shaft 20 is connected to the transmission gear set 42. The upper shell 44 has an opening 46 corresponding to the opening 22 at the upper end of the output shaft 20 and is tightly connected to apply the suction force from the opening 46 outside the shell 40.

[0085] In certain embodiments, reference Figure 1As shown, the upper shell 44 has a suction channel 43 extending from the opening 46 to the suction side of the air suction device 630, wherein the air flow is introduced into the suction channel 30 and the suction channel 43 in sequence from the opening 21 at the lower end of the output shaft 20 by suction.

[0086] In certain embodiments, reference Figure 1 As shown, the suction channel 43 includes: an airflow groove 441 provided in the upper shell 44 and an airflow cover 442 that can be tightly connected to the airflow groove 441. The airflow groove 441 and the airflow cover 442 are provided with a mounting mechanism, through which the airflow groove 441 and the airflow cover 442 are tightly connected to form the suction channel 43.

[0087] In some embodiments, the suction passage 43 extends toward the suction side of the air suction device 630 and gradually expands.

[0088] In certain embodiments, an upper portion of the output shaft 20 is rotatably connected to the housing 40 via a first bearing, and a lower portion of the output shaft 20 is rotatably connected to the housing 40 via a second bearing.

[0089] In certain embodiments, Figure 4 As shown, each cleaning turntable 610 is in sealed communication with the exhaust device 620 via the corresponding suction channel 300, and the suction channels 300 corresponding to the three cleaning turntables 610 are independent of each other, wherein the suction channel 300 is located on the suction side of the exhaust device 630, and the suction channel 300 is formed by the opening 311 at the lower end of the output shaft 310 of the driving device 620, the opening 312 at the upper end, and the inner wall of the output shaft 310; wherein the output shaft 310 is used to be driven by the driving unit to drive the cleaning turntable 610 of the surface treatment device to rotate. wherein, during the surface treatment process, the exhaust device 630 applies suction force to introduce the airflow from the opening 311 at the lower end of the output shaft 310 into the suction channel 300 to form a negative pressure, so that the cleaning turntable 610 is adsorbed on the surface.

[0090] In certain embodiments, Figure 4 As shown, each cleaning turntable 610 is also tightly connected to the suction device 630 via the corresponding suction channel 400, wherein the suction channel 400 is located between the suction side of the suction device 630 and the suction channel 300, and the suction channel 400 is formed by a shell 410 carrying the output shaft 310, and the suction channel 400 is tightly connected to the suction channel 300.

[0091] In certain embodiments, Figure 4 As shown, the suction channel 400 is formed by a closed connection between an air flow groove 401 and an air flow cover 402 on the upper shell 411 of the shell 410 and extending from the opening 312 at the upper end of the output shaft 310 to the suction side of the air extraction device 630 .

[0092] In certain embodiments, Figure 4 As shown, the output shaft 310 is fixedly connected to the cleaning turntable 610. Figure 6 As shown, the cleaning turntable 610 has an opening 520 corresponding to the opening 311 at the lower end of the output shaft 310. The gas between the inner wall and the surface of the cleaning turntable 610 is sucked into the suction channel 300 through the opening 520 by the suction force of the suction device 630. Further, the gas is sucked into the suction channel 400 and finally discharged from the discharge side of the suction device 630.

[0093] In some embodiments, each driving device 620 includes a driving unit (such as a motor), and Figure 2 , Figure 3 The gear speed change transmission device shown in the figure comprises: a gear box housing cover 200; a gear box housing 210 having a drive input port 211; a gear set 220 disposed in the gear box housing 210; an output shaft 230 connected to the gear set 220 and used to drive the cleaning turntable 610 to rotate, the output shaft 230 comprising a suction channel 231, the suction channel 231 being composed of an opening 232 at the lower end of the output shaft 230 and an opening 234 at the upper end of the output shaft 230. 3 and the inner wall of the output shaft 230; the gear box housing 210 is provided with an opening 212 at a position corresponding to the opening 233 at the upper end of the output shaft 230, so that the suction device 630 introduces the suction force of the suction device 630 into the suction channel 231 from the opening 212 outside the housing; wherein, during the surface treatment process, the air flow is sucked into the suction channel 231 from the opening 232 at the lower end of the output shaft 230 by the suction force of the suction device 630 to form a negative pressure, so that the cleaning turntable 610 is adsorbed on the surface.

[0094] In certain embodiments, Figure 2 , 3 As shown, the gearbox housing 210 also includes: a suction channel 213 extending outward from the opening 212 , the suction channel 213 is located at one end of the opening 212 and is tightly connected to the suction channel 231 , and the other end of the suction channel 213 is tightly connected to the suction side of the exhaust device 630 .

[0095] In certain embodiments, Figure 2 , 3 As shown, the suction channel 213 includes: an airflow groove 2131 extending outward from the opening 212 , and an airflow cover 2132 . The airflow cover 2132 is tightly connected to the airflow groove 2131 to form the suction channel 213 .

[0096] In certain embodiments, Figure 6As shown, the cleaning turntable 610 has an opening 520 corresponding to the opening at the lower end of the output shaft 230 , and the gas between the inner wall and the surface of the cleaning turntable 610 is sucked into the suction channel 231 through the opening 520 by suction.

[0097] It should be understood that this embodiment only shows one or more parts or components of the surface treatment device. The surface treatment device of this embodiment is not limited to this. It may include fewer parts, or one or more more parts, such as batteries, circuit structures, etc., which are not elaborated in this embodiment.

[0098] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gear speed change transmission device for a surface treatment equipment, characterized in that: include: Gearbox housing cover; A gearbox housing having a drive input port; A gear set, disposed in the gear box housing; as well as an output shaft connected to the gear set and used to drive the cleaning turntable of the surface treatment device to rotate, the output shaft comprising a first suction channel, the first suction channel being formed by a first opening at a lower end of the output shaft, a second opening at an upper end of the output shaft and an inner wall of the output shaft; The gearbox housing is provided with a third opening at a position corresponding to the second opening, so as to introduce suction force from the third opening outside the gearbox housing into the first suction channel; Wherein, during the surface treatment process, the airflow is sucked from the first opening into the first suction channel by the suction force to form a negative pressure, so that the cleaning turntable is adsorbed on the surface; The output shaft is fixedly connected to the cleaning turntable, and the cleaning turntable has a fourth opening corresponding to the first opening, and the gas between the inner wall and the surface of the cleaning turntable is sucked into the first suction channel through the fourth opening by suction.

2. The gear speed change transmission device of the surface treatment equipment according to claim 1, characterized in that: The gearbox housing further includes: a second suction channel extending outward from the third opening, wherein one end of the second suction channel located at the third opening is in close communication with the first suction channel, and the other end of the second suction channel is in close communication with the suction side.

3. The gear speed change transmission device of the surface treatment equipment according to claim 2, characterized in that: The second suction channel includes: an airflow groove extending outward from the third opening, and an airflow cover, wherein the airflow cover is tightly connected to the airflow groove to form the second suction channel.

4. The gear speed change transmission device of the surface treatment equipment according to claim 2, characterized in that: The second suction passage extends outward from the third opening and gradually expands.

5. The gear speed change transmission device of the surface treatment equipment according to claim 2, characterized in that: An included angle between the first suction channel and the second suction channel is less than 180 degrees.

6. The gear speed change transmission device of the surface treatment equipment according to any one of claims 1 to 5, characterized in that: The gearbox housing cover is located at the lower side of the gear change transmission device, and the gearbox housing is located at the upper side of the gear change transmission device.

7. The gear speed change transmission device of the surface treatment equipment according to any one of claims 1 to 5, characterized in that: The output shaft is connected to the gearbox housing through a first bearing, and is connected to the gearbox housing cover through a second bearing.

8. A driving device for a surface treatment device, characterized in that: include: Drive unit; A gear speed change transmission device for a surface treatment device according to any one of claims 1 to 7; The output end of the driving unit enters the gear change transmission device from a driving input port on the gear box housing of the gear change transmission device and is connected to a gear set located in the gear box housing.

9. A surface treatment device, characterized in that: include: At least two drive devices for the surface treatment device according to claim 8.

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