Horizontal floor cleaning machine

Abstract

The invention discloses a horizontal type ground cleaning machine which comprises a horizontal type main machine capable of automatically moving along the ground under driving of a driving device, a cleaning head capable of moving on the ground and a connecting pipe assembly used for communicating the horizontal type main machine with the cleaning head through fluid. The handle part is held by a user so as to push the cleaning head to move on the ground; the horizontal type ground cleaning machine further comprises a distance restraining system, the distance restraining system is used for restraining the distance between the horizontal type main machine and the handle part to be kept within a predefined distance parameter range and comprises a distance monitoring part and a control part, and the distance monitoring part is used for monitoring the horizontal distance between the horizontal type main machine and the handle part. The control part comprises a driving control circuit which is in control connection with the driving device; the driving control circuit is activated when the distance monitoring part monitors that the horizontal distance is not in a predefined distance parameter range; the following function of the horizontal main machine is achieved through the distance restraint system, time and labor are saved, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of floor cleaning equipment, and in particular to a horizontal floor cleaning machine. Background Art

[0002] In current cleaning equipment, in order to reduce the weight of the machine body, the cleaning head that sucks the ground and the main machine equipped with a suction motor are usually arranged separately, and the two are connected by a suction pipe. The user only needs to push the cleaning head to move along the ground to achieve cleaning. However, when the cleaning range is wider, the distance between the cleaning head and the main machine gradually increases, and it becomes increasingly inconvenient for the user to apply force to the cleaning head. Moreover, the cleaning head cannot expand the cleaning range due to the limitation of the main machine that cannot move automatically. The main machine needs to be moved to the next area to be cleaned, which is time-consuming and labor-intensive and reduces the cleaning efficiency. Summary of the invention

[0003] In order to solve the above technical problems, an object of the present invention is to provide a horizontal floor cleaning machine in which a horizontal main body automatically follows a handle.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a horizontal floor cleaning machine, comprising a horizontal main unit that can move along the floor by itself under the drive of a driving device, a cleaning head that can be pushed by a user to move on the floor, and a connecting pipe assembly for fluidly connecting the horizontal main unit and the cleaning head, the connecting pipe assembly comprising a rigid pipe, a flexible pipe component and a handle portion, one end of the rigid pipe is attached to the cleaning head, one end of the flexible pipe component is fluidically connected to the other end of the rigid pipe, the other end of the flexible pipe component is attached to the horizontal main unit, the handle portion is mounted on the rigid pipe and is constructed to be gripped by a user to push the cleaning head. The horizontal floor cleaning machine further comprises a distance constraint system, which is used to constrain the distance between the horizontal main unit and the handle unit to remain within a predefined distance parameter range and comprises a distance monitoring unit and a control unit, wherein the distance monitoring unit is used to monitor the horizontal distance between the horizontal main unit and the handle unit; the control unit is arranged at the horizontal main unit and / or the handle unit and comprises a drive control circuit which is controllably connected to the drive device; wherein the drive control circuit is configured to be activated when the distance monitoring unit detects that the horizontal distance is not within the predefined distance parameter range.

[0005] In the above technical solution, preferably, the distance monitoring unit includes a plurality of light emitting elements arranged at the handle portion and used to output measurement light toward the horizontal host, and a plurality of light receiving elements arranged at the horizontal host and used to receive the measurement light.

[0006] In the above technical solution, it is further preferred that the plurality of light emitting elements are constructed to be able to output measurement light with a maximum horizontal light emission angle of α and a maximum longitudinal light emission angle of β; wherein β is greater than α.

[0007] In the above technical solution, it is further preferred that the distance detection portion includes two light emitting elements, and the two light emitting elements are arranged one above and one below at the handle portion.

[0008] In the above technical solution, it is further preferred that the distance detecting unit includes a first light receiving element, a second light receiving element, a third light receiving element and a fourth light receiving element, the first light receiving element and the second light receiving element are distributed on the left and right in the middle position of the front part of the horizontal main unit, the third light receiving element is distributed on the left side of the front part of the horizontal main unit, and the fourth light receiving element is distributed on the right side of the front part of the horizontal main unit.

[0009] In the above technical solution, it is further preferred that the control unit includes a light output control circuit, which is connected to the control of the plurality of light emitting elements, and the light output control circuit can control the plurality of light emitting elements to emit the measurement light of a plurality of different intensities.

[0010] In the above technical solution, it is further preferred that the control part includes a circuit board arranged at the handle part, and the plurality of light emitting elements and the light output control circuit are integrated on the circuit board.

[0011] In the above technical solution, it is further preferred that the plurality of light emitting elements are infrared light emitting elements.

[0012] In the above technical solution, it is further preferred that the handle portion includes a rod having an upper end and a lower end and a grip fixedly mounted on the upper end, the lower end of the rod is rotatably arranged with the rigid tube, and the plurality of light emitting elements are arranged at the grip.

[0013] In the above technical solution, preferably, the distance monitoring unit includes a plurality of ultrasonic emitting elements arranged at the handle portion and used to output ultrasonic waves toward the horizontal main unit and a plurality of ultrasonic receiving elements arranged at the horizontal main unit and used to receive the ultrasonic waves.

[0014] In the above technical solution, preferably, the horizontal main machine includes a moving wheel distributed on the left and the right, the driving device includes a pair of driving motors, and each of the moving wheels is equipped with one driving motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In this case, the horizontal main machine can follow the handle part by itself through the distance constraint system, which saves time and effort and improves cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a horizontal floor cleaning machine provided in an embodiment of the present application; Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of a horizontal main machine of a medium-horizontal floor cleaning machine; Figure 3 for Figure 2 Schematic diagram of the internal structure of the horizontal main engine; Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure of the driving device in FIG. Figure 5 for Figure 1 A schematic diagram of the maximum horizontal light emission angle of the measurement light emitted by the light emitting element of the horizontal floor cleaning machine; Figure 6 for Figure 5 A local enlarged schematic diagram of the middle A; Figure 7 for Figure 1 A schematic diagram of the maximum longitudinal light emission angle of the measured light emitted by the light emitting element of the horizontal floor cleaning machine; Figure 8 for Figure 1 Schematic diagram of the principle of the distance constraint system of the horizontal floor cleaning machine.

[0017] Wherein: 100, horizontal floor cleaning machine; 10, horizontal main machine; 6, driving device; 61, driving motor; 7, moving wheel; 8, suction motor; 9, dust collecting device; 20, cleaning head; 30, connecting pipe assembly; 1, rigid pipe; 2, flexible pipe component; 3, handle part; 31, rod; 311, upper end; 312, lower end; 32, grip; 40, distance constraint system; 4, distance monitoring part; 41, light emitting element; 42, first light receiving element; 43, second light receiving element; 44, third light receiving element; 45, fourth light receiving element; 5, control part; 51, driving control circuit; 52, light output control circuit; 53, circuit board. DETAILED DESCRIPTION

[0018] To describe the technical content, structural features, achieved purpose and effect of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0019] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0020] In the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0021] An embodiment of the present invention provides a horizontal floor cleaning machine, such as Figure 1 As shown, the horizontal floor cleaning machine 100 includes a horizontal main machine 10, a cleaning head 20 and a connecting pipe assembly 30. The horizontal main machine 10 is equipped with a driving device to move along the floor by itself under the drive of the driving device. The connecting pipe assembly 30 fluidly connects the horizontal main machine 10 and the cleaning head 20. The user pushes the cleaning head 20 to move back and forth along the floor through the connecting pipe assembly 30. The horizontal floor cleaning machine 100 also includes a distance constraint system, and the following function of the horizontal main machine 10 is realized through the distance constraint system.

[0022] like Figure 1As shown, the connecting pipe assembly 30 includes a rigid pipe 1, a flexible pipe component 2 and a handle portion 3, one end of the rigid pipe 1 is attached to the cleaning head 20, and the other end is fluidically connected to one end of the flexible pipe component 2, and the other end of the flexible pipe component 2 is attached to the horizontal main unit 10; the cleaning head 20 is fluidically connected with the horizontal main unit 10 through the rigid pipe 1 and the flexible pipe component 2 connected by fluid connectivity; the handle portion 3 is installed at the other end of the rigid pipe 1, and the handle portion 3 includes a rod 31 with an upper end 311 and a lower end 312 and a handle 32 for a user to hold, the handle 32 is fixedly installed on the upper end 311 of the rod 31, and the lower end 312 of the rod 31 is rotatably connected to the rigid pipe 1, and the handle portion 3 is held by the user to facilitate pushing the cleaning head 20 to move on the ground.

[0023] like Figure 1-3 As shown, the cleaning head 20 has a suction port facing the ground, and the horizontal main unit 10 is provided with a suction motor 8 which is fluidically connected to the suction port through a connected flexible tube component 2 and a rigid tube 1. The cleaning head 20 or the horizontal main unit 10 is also provided with a dust collecting device 9, and the dust collecting device 9 is located in the suction path between the suction port and the suction motor 8; the suction motor 8 loads suction force at the suction port, and when the user pushes the cleaning head 20 back and forth along the ground through the handle portion 3, the suction port sucks the dirt on the ground into the suction path, and the dirt is collected in the dust collecting device 9, and the filtered air is discharged from the horizontal floor cleaning machine 100 by the suction motor.

[0024] The distance constraint system is used to constrain the distance between the horizontal host 10 and the handle portion 3 to remain within a predefined distance parameter range. When the user holds the handle portion 3 and pushes the cleaning head 20 along the ground for cleaning, when the horizontal host 10 exceeds the predefined distance parameter range, the distance constraint system controls the horizontal host 10 to move within the predefined distance parameter range.

[0025] like Figure 5-8 As shown, the distance constraint system 40 includes a distance monitoring unit 4 and a control unit 5. The distance monitoring unit 4 is used to monitor the horizontal distance between the horizontal host 10 and the handle unit 3. The distance detection unit 4 includes a plurality of light emitting elements arranged at the handle unit 3 and a plurality of light receiving elements arranged on the horizontal host 10. The plurality of light emitting elements are used to output measurement light in the direction of the horizontal host 10. The maximum horizontal light emission angle of the measurement light output in the left-right direction is α, and the maximum longitudinal light emission angle of the measurement light output in the up-down direction is β, which is greater than α. The plurality of light receiving elements are used to receive the measurement light output by the plurality of light emitting elements.

[0026] In the embodiment of the present invention, the distance detecting unit 4 includes two light emitting elements 41 , a first light receiving element 42 , a second light receiving element 43 , a third light receiving element 44 and a fourth light receiving element 45 .

[0027] like Figure 5-7 As shown, two light emitting elements 41 are arranged one above and one below at the rear end of the handle portion 3, and both are infrared light emitting elements. The two light emitting elements 41 emit infrared measuring light toward the rear of the handle portion 3 during the cleaning operation of the horizontal floor cleaning machine 100. The two light emitting elements 41 are also configured to emit measuring light of different intensities, and the light receiving elements receive measuring light of different intensities for the distance constraint system 40 to judge the distance between the horizontal host 10 and the handle portion 3, and determine the moving direction and distance of the horizontal host 10.

[0028] like Figure 2 , 3 As shown, the first light receiving element 42 and the second light receiving element 43 are distributed in the middle position of the front part of the horizontal main unit 10, the third light receiving element 44 is distributed in the left position of the front part of the horizontal main unit 10, and the fourth light receiving element 45 is distributed in the right position of the front part of the horizontal main unit 10. When at least one light receiving element does not receive the measuring light, the horizontal distance between the horizontal main unit 10 and the handle part 3 exceeds the predefined distance parameter range, and the position of the horizontal main unit 10 needs to be adjusted by the driving device 6; when the four light receiving elements do not receive the measuring light, there is an obstacle between the horizontal main unit 10 and the handle part 3 that blocks the measuring light, and the user needs to remove the obstacle to reposition the horizontal main unit 10 within the predefined distance parameter range, so that the horizontal main unit 10 can adjust and follow the position based on the light receiving element receiving the measuring light of the light reflecting element.

[0029] like Figure 8As shown, the control unit 5 is arranged at the horizontal main machine 10 and / or the handle unit 3, and the control unit 5 has a drive control circuit 51 which is control-connected to the drive device 6 and a light output control circuit 52 which is control-connected to the two light emitting elements 41. The drive control circuit 51 is activated when the distance monitoring unit 4 detects that the horizontal distance between the horizontal main machine 10 and the handle unit 3 is not within the predefined distance parameter range, and the activated drive control circuit 51 supplies power to the drive device 6, so that the drive device 6 drives the horizontal main machine 10 to move within the predefined distance parameter range. The light output control circuit 52 can control the two light emitting elements 41 to emit measurement lights of multiple different intensities. The measurement light with the highest intensity has a maximum projection distance, and the measurement light with the lowest intensity has a minimum projection distance. The maximum projection distance, the minimum projection distance, the maximum horizontal light emission angle α, and the maximum longitudinal light emission angle β define a predefined distance parameter range. When the distance monitoring unit 4 detects that the horizontal distance between the horizontal host 10 and the handle unit 3 is not within the predefined distance parameter range, the drive device 6 drives the horizontal host 10 to move closer to or away from the handle unit 3. While the handle unit 3 is pushed by the user, the horizontal host 10 is constrained within the predefined distance parameter range based on the monitoring and control of the distance constraint system 40, thereby achieving following of the handle unit 3.

[0030] like Figure 5 , 6 As shown, the control unit 5 also includes a circuit board 53 arranged at the handle portion 3. The two light emitting elements 41 and the light output control circuit (not shown in the figure) are integrated on the circuit board 53. The integrated circuit board 53 is installed on the handle portion 3 to reduce the installation area and facilitate disassembly and assembly.

[0031] like Figure 2 , 3 As shown in Figures 4 and 8, the horizontal main machine 10 includes a moving wheel 7 distributed on the left and the right, and the driving device 6 includes a pair of driving motors 61. Each moving wheel 7 is equipped with a driving motor 61. Each driving motor 61 drives the corresponding moving wheel 7 to rotate so that the horizontal main machine 10 can follow behind the handle part 3. The two driving motors 61 can adjust the rotation speed according to the current position of the horizontal main machine 10 under the control of the driving control circuit 51 to perform forward, backward, turning and other movements.

[0032] When the user holds the handle portion 3 to push the cleaning head 20 to move along the ground, the light emitting element 41 continuously projects measurement light of different intensities backwards, and the multiple light receiving elements on the horizontal host 10 are used to receive the measurement light. The distance monitoring unit 4 is used to monitor whether the horizontal host 10 is within the predefined distance parameter range at all times. When at least one light receiving element cannot receive the measurement light, the driving device drives the horizontal host 10 to move within the predefined distance parameter range; the horizontal host 10 follows the cleaning head 20 during its movement, and the user does not need to adjust the horizontal distance between the horizontal host 10 and the handle portion 3 from time to time.

[0033] In other embodiments, the distance monitoring unit of the distance constraint system can use an ultrasonic ranging method to measure the distance, such as the distance monitoring unit includes a plurality of ultrasonic emitting elements arranged at the handle portion and used to output ultrasonic waves toward the horizontal main unit and a plurality of ultrasonic receiving elements arranged at the horizontal main unit and used to receive ultrasonic waves; since the ultrasonic and infrared ranging principles are similar, they will not be repeated here; in some embodiments, the distance monitoring unit can be provided with infrared ranging components and ultrasonic ranging components at the same time.

[0034] The present invention realizes the following function of the horizontal main machine 10 automatically following behind the handle part 3 through the distance constraint system, which saves time and labor and improves the cleaning efficiency.

[0035] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.

Claims

1. A horizontal floor cleaning machine, comprising a horizontal main unit that can move along the floor by itself under the drive of a driving device, a cleaning head that can be pushed by a user to move on the floor, and a connecting pipe assembly for fluidly connecting the horizontal main unit and the cleaning head, the connecting pipe assembly comprising a rigid pipe, a flexible pipe component and a handle, one end of the rigid pipe is attached to the cleaning head, one end of the flexible pipe component is fluidically connected with the other end of the rigid pipe, the other end of the flexible pipe component is attached to the horizontal main unit, the handle is mounted on the rigid pipe and is constructed to be gripped by a user so as to push the cleaning head to move on the floor; characterized in that The horizontal floor cleaning machine also includes a distance constraint system, which is used to constrain the distance between the horizontal main unit and the handle unit to remain within a predefined distance parameter range and includes a distance monitoring unit and a control unit, wherein the distance monitoring unit is used to monitor the horizontal distance between the horizontal main unit and the handle unit; the control unit is arranged at the horizontal main unit and / or the handle unit and includes a drive control circuit that is controllably connected to the drive device; wherein the drive control circuit is configured to be activated when the distance monitoring unit detects that the horizontal distance is not within the predefined distance parameter range.

2. The horizontal floor cleaning machine according to claim 1, characterized in that: The distance monitoring unit includes a plurality of light emitting elements arranged at the handle portion and used for outputting measurement light toward the horizontal main unit, and a plurality of light receiving elements arranged at the horizontal main unit and used for receiving the measurement light.

3. The horizontal floor cleaning machine according to claim 2, characterized in that: The plurality of light emitting elements are constructed to be able to output measurement light with a maximum horizontal light emission angle of α and a maximum longitudinal light emission angle of β; wherein β is greater than α.

4. The horizontal floor cleaning machine according to claim 3, characterized in that: The distance detection part comprises two light emitting elements, and the two light emitting elements are arranged one above and one below on the handle part.

5. The horizontal floor cleaning machine according to claim 2, characterized in that: The distance detecting unit includes a first light receiving element, a second light receiving element, a third light receiving element and a fourth light receiving element. The first light receiving element and the second light receiving element are distributed on the left and right sides in the middle position of the front part of the horizontal main unit, the third light receiving element is distributed on the left side of the front part of the horizontal main unit, and the fourth light receiving element is distributed on the right side of the front part of the horizontal main unit.

6. The horizontal floor cleaning machine according to claim 2, characterized in that: The control unit includes a light output control circuit, which is connected to the plurality of light emitting elements for controlling the light output control circuit. The light output control circuit can control the plurality of light emitting elements to emit the measurement light of a plurality of different intensities.

7. The horizontal floor cleaning machine according to claim 6, characterized in that: The control part comprises a circuit board arranged at the handle part, and the plurality of light emitting elements and the light output control circuit are integrated on the circuit board.

8. The horizontal floor cleaning machine according to claim 2, characterized in that: The plurality of light emitting elements are infrared light emitting elements.

9. The horizontal floor cleaning machine according to claim 2, characterized in that: The handle portion comprises a rod having an upper end and a lower end and a grip fixedly mounted on the upper end, the lower end of the rod is rotatably arranged with the rigid tube, and the plurality of light emitting elements are arranged at the grip.

10. The horizontal floor cleaning machine according to claim 1, characterized in that: The distance monitoring unit includes a plurality of ultrasonic emitting elements arranged at the handle portion and used for outputting ultrasonic waves toward the horizontal main unit, and a plurality of ultrasonic receiving elements arranged at the horizontal main unit and used for receiving the ultrasonic waves.

11. The horizontal floor cleaning machine according to claim 1, characterized in that: The horizontal main machine comprises a moving wheel distributed on the left and the right, the driving device comprises a pair of driving motors, and each of the moving wheels is equipped with a driving motor.

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