Floor scrubber

Abstract

The utility model relates to the field of scrubbers, in particular to a scrubber, and aims to solve the problem that an existing scrubber is strenuous in steering. In order to achieve the purpose, the scrubber comprises a handheld part, a cleaning base, a connecting part and a control part, a steering triggering assembly is arranged on the handheld part; a cleaning assembly is arranged on the cleaning base; one end of the connecting part is connected with the handheld part, the other end of the connecting part is rotationally connected to the cleaning base, one of the connecting part and the cleaning base is provided with a driving mechanism, the other one is provided with a driven mechanism, and the driving mechanism is connected with the driven mechanism in a matched mode; the control part is connected with the steering trigger assembly and the driving mechanism at the same time, and the control part is arranged to be capable of receiving signals of the steering trigger assembly and controlling the driving mechanism to operate based on the signals. Steering of the scrubber is achieved under the action of the driving mechanism, and the problem that manual steering is strenuous is solved.

Description

Technical Field

[0001] The utility model relates to the field of floor scrubbers, and specifically provides a floor scrubber. Background Art

[0002] A floor scrubber is a cleaning machine that is suitable for cleaning hard floors and sucking out wastewater at the same time, and taking the wastewater away from the site. The floor scrubber mainly uses a roller brush to clean the particles on the ground, and then dissolves the particles in water and sucks them into the sewage tank. The greater the friction of the roller brush on the ground, the better the cleaning effect. At that time, while pursuing the cleaning effect, there were also the following pain points in use: users felt a sense of effort when holding the floor scrubber to turn, move forward, and move backward, which was inconvenient to use.

[0003] In order to solve the problem of difficulty in use, the current common floor scrubbers adopt forward and reverse power-assist solutions, but the floor scrubbers still have the problem of difficulty in turning.

[0004] Accordingly, the art needs a new technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above technical problems and the problem that the existing floor scrubbers are laborious when turning.

[0006] The utility model provides a floor scrubber, comprising a handheld portion, a cleaning base, a connecting portion and a control portion; a steering trigger assembly is arranged on the handheld portion;

[0007] The cleaning base is provided with a cleaning component;

[0008] One end of the connecting part is connected to the handheld part, and the other end of the connecting part is rotatably connected to the cleaning base. One of the connecting part and the cleaning base is provided with a driving mechanism, and the other is provided with a driven mechanism, and the driving mechanism is cooperatively connected with the driven mechanism;

[0009] The control unit is connected to the steering trigger assembly and the driving mechanism at the same time, and is configured to receive a signal from the steering trigger assembly and control the operation of the driving mechanism based on the signal.

[0010] When the above technical solution is adopted, the cleaning component can clean the floor, the connecting part connects the hand-held part and the cleaning base, the driving mechanism and the driven mechanism cooperate, and the control part is used to receive the steering signal of the steering trigger component and control the operation of the driving mechanism based on the signal, so that under the drive of the driving mechanism, the hand-held part and the cleaning base can rotate relative to each other, thereby assisting the steering of the floor scrubber and avoiding the problem of laborious manual steering.

[0011] In a specific embodiment of the above-mentioned floor scrubber, the steering trigger assembly includes two steering buttons, and the two steering buttons are respectively located on both sides of the handheld part; or

[0012] The steering trigger assembly comprises a steering slider, the handheld portion is provided with a slide groove, and the steering slider is slidably connected to the slide groove.

[0013] When the above technical solution is adopted, the two steering buttons correspond to different directions of the washing machine, and the control operation is convenient by using the steering buttons. The slider moves to different positions, corresponding to different directions of the washing machine, and the steering direction control is more intuitive.

[0014] In a specific embodiment of the above-mentioned floor scrubber, the steering trigger assembly also includes a contact, which is connected to the control unit, and a trigger protrusion is provided on the steering button or the steering slider. In an initial state, there is a gap between the contact and the trigger protrusion.

[0015] When the above technical solution is adopted, when the steering button is pressed or the steering slider is slid, the contact contacts the trigger protrusion, thereby controlling the steering of the floor scrubber. There is a gap between the contact and the trigger protrusion. When the steering button is pressed, the contact and the trigger protrusion will not contact immediately, avoiding misoperation.

[0016] In a specific embodiment of the above-mentioned floor scrubber, the driving mechanism is a driving motor, the driven mechanism is a gear set, and the driving end of the driving motor is connected to the driving wheel in the gear set.

[0017] When the above technical solution is adopted, the driving motor and the gear set cooperate with each other, and after the driving motor is started, the gear set is driven to rotate, so that the floor scrubber can be turned.

[0018] In a specific embodiment of the above-mentioned floor scrubber, the gear set is a helical gear set.

[0019] In a specific embodiment of the above-mentioned floor scrubber, the connecting part includes a first sleeve and a second sleeve, one end of the first sleeve is provided with the driven mechanism; one end of the second sleeve is connected to the other end of the first sleeve, and the other end of the second sleeve is connected to the handheld part.

[0020] When the above technical solution is adopted, the arrangement of the first sleeve and the second sleeve facilitates the connection between the driven mechanism and the handheld part.

[0021] In a specific embodiment of the above floor scrubber, a cleaning upper shell is further included, and a position sensor is arranged on the cleaning upper shell. The position sensor is configured to send out a signal when the cleaning base is returned to the normal position.

[0022] When the above technical solution is adopted, the position sensor can be used to determine whether the cleaning base is returned to the center position, thereby ensuring that the floor scrubber is in a forward driving state when working normally.

[0023] In a specific embodiment of the above-mentioned floor scrubber, the position sensor is an infrared distance sensor.

[0024] In a specific embodiment of the above-mentioned floor scrubber, the floor scrubber further includes a support assembly, and the driving mechanism is disposed on the support assembly.

[0025] In a specific embodiment of the above-mentioned floor scrubber, the support assembly includes a support leg and two support rings, the upper end of the support leg is connected to the support ring, the lower end of the support leg is connected to the cleaning base, the two support rings are connected to form a circular cavity, and the connecting part passes through the circular cavity.

[0026] In a specific embodiment of the above-mentioned floor scrubber, an auxiliary rotating member is provided between the connecting portion and the circular cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0028] Figure 1 This is the overall structure diagram of the floor scrubber;

[0029] Figure 2 This is the structural diagram of the base part of the floor scrubber;

[0030] Figure 3 It is a structural diagram of the support components and connection structure in the floor scrubber;

[0031] Figure 4 It is a cross-sectional view of the support components and connection structure in the floor scrubber;

[0032] Figure 5 This is a connection diagram of the position sensor in the floor scrubber.

[0033] List of reference numerals: 1-hand-held part; 11-steering button; 2-cleaning base; 3-cleaning upper shell; 4-connecting part; 41-first sleeve; 42-second sleeve; 43-bearing; 5-roller brush; 6-support assembly; 61-support ring; 62-support leg; 63-position identification block; 7-drive motor; 71-drive connecting seat; 72-driving wheel; 8-driven gear ring; 9-position sensor. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application and are not used to limit the scope of protection of the present application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios. For example, although the position sensor in the specification is described in combination with an infrared distance sensor, the present application can obviously adopt other position sensors, such as an optical distance sensor, an ultrasonic distance sensor, or a micro switch.

[0035] It should be noted that, in the description of this application, unless otherwise clearly specified and limited, the terms "setting", "connection", etc. 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 mechanical connection or other connections; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application. It should be understood that the terms "front", "rear", "directly behind", "upper", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0036] like Figure 1-4 As shown, in order to solve the problem that the existing floor scrubbers are laborious when turning, the utility model provides a floor scrubber, including a handheld part 1, a cleaning base 2, a connecting part 4 and a control part; a steering trigger assembly is provided on the handheld part 1; a cleaning assembly is provided on the cleaning base 2; one end of the connecting part 4 is connected to the handheld part 1, and the other end of the connecting part 4 is rotatably connected to the cleaning base 2, one of the connecting part 4 and the cleaning base 2 is provided with a driving mechanism, and the other is provided with a driven mechanism, and the driving mechanism is cooperatively connected with the driven mechanism; the control part is connected to the steering trigger assembly and the driving mechanism at the same time, and the control part is configured to receive a signal of the steering trigger assembly and control the operation of the driving mechanism based on the signal.

[0037] In this way, the cleaning component can clean the floor, the connecting part 4 connects the handheld part 1 and the cleaning base 2, the driving mechanism and the driven mechanism cooperate, and the control part is used to receive the steering signal of the steering trigger component and control the operation of the driving mechanism based on the signal, so that under the drive of the driving mechanism, the handheld part 1 and the cleaning base 2 can rotate relative to each other, thereby assisting the steering of the floor scrubber and avoiding the problem of laborious manual steering.

[0038] See attached Figure 1-4 In a preferred embodiment, the floor scrubber includes a handheld portion 1, a cleaning base 2, a cleaning upper shell 3, a support assembly 6, a driving mechanism, a driven mechanism, a connecting portion 4, a position sensor 9 and a control portion.

[0039] See attached Figure 1 , the lower end of the handheld part 1 is connected to the connecting part 4, and the upper end of the handheld part 1 is used for the operator to hold. The steering trigger assembly is arranged near the operator's handheld position, and the steering trigger assembly includes two steering buttons 11 and contacts. The two steering buttons 11 are respectively located on both sides of the handheld part 1. The steering button 11 is provided with a trigger protrusion, and the contact is connected to the control part. In the initial state, there is a gap between the contact and the trigger protrusion. The two steering buttons 11 correspond to different directions of the washing machine, and it is convenient to control the operation by using the steering button 11. There is a gap between the contact and the trigger protrusion. When the steering button 11 is pressed, the contact and the trigger protrusion will not contact immediately to avoid misoperation. For example, when the steering button 11 on the left side (based on the user's position) is pressed, after the steering button 11 is pressed for a stroke, the trigger protrusion on the left side contacts the corresponding contact, and the control part receives the signal of pressing the steering button 11 on the left side, and the control part controls the driving mechanism to rotate, so that the cleaning base 2 turns to the left.

[0040] Of course, the specific structural shape of the steering trigger assembly is not unique, and those skilled in the art can adjust it based on specific scenarios. For example, the steering trigger assembly includes a steering slider, a handheld portion 1 is provided with a chute, a steering slider is slidably connected to the chute, and a trigger protrusion is provided on the steering slider. The steering slider can move in the steering chute, and when the steering slider is located at the first end of the chute, the trigger protrusion contacts the corresponding contact, and the control unit receives a signal to control the drive mechanism to rotate, thereby realizing the turning of the cleaning base 2. When the steering slider is located at the second end of the chute, the cleaning base 2 turns in the opposite direction. When the steering slider is located in the middle position of the length direction of the chute, the cleaning base 2 does not turn. The setting of the trigger protrusion and the contact is not necessary, and those skilled in the art can adjust it based on specific scenarios. For example, without using a trigger protrusion, the steering button 11 contacts the contact to realize the control of the reversal. Or a micro switch is used, and the micro switch is connected to the control unit, and when the steering button 11 is pressed, the micro switch at the corresponding position is triggered.

[0041] See attached Figure 2 A placement recess for placing the cleaning component is provided on the front and rear sides of the cleaning base 2 (the forward direction is the front side of the cleaning base 2, and the backward direction is the rear side of the cleaning base 2). The cleaning component includes two roller brushes 5 for cleaning the floor, and the roller brushes 5 are placed in the placement recess.

[0042] See attached Figure 1 and 5, the cleaning upper shell 3 is buckled on the upper side of the cleaning base 2, and a cavity for installing the position sensor 9 is formed on the cleaning upper shell 3. Of course, the provision of the cleaning upper shell 3 is not necessary, and those skilled in the art can choose whether to provide the cleaning upper shell 3 and the specific structure of the cleaning upper shell 3 based on the specific application scenario, and of course, the cleaning upper shell 3 may not be provided. Of course, the specific structural shape of the cleaning component is not unique, and those skilled in the art can adjust it based on the specific scenario. For example, the cleaning component can be a disc-shaped cleaning brush. In addition, the specific structure and working principle of the roller brush 5 are prior art and will not be repeated here.

[0043] See attached Figure 2-3 The support assembly 6 includes two semi-circular support rings 61, each support ring 61 extends a support leg 62 downward, the upper end of the support leg 62 is connected to the support ring 61, and the lower end of the support leg 62 is connected to the cleaning base 2. The two support rings 61 are connected to form a circular cavity, and the connecting part 4 passes through the circular cavity. An auxiliary rotating part is arranged between the connecting part 4 and the circular cavity. The auxiliary rotating part is preferably a ball bearing 43. The inner side of the ball bearing 43 is connected to the connecting part 4, and the outer side of the ball bearing 43 is connected to the support ring 61. The ball bearing 43 enables relative rotation between the connecting part 4 and the support ring 61.

[0044] Of course, the specific structural shape of the support assembly 6 is not unique, and those skilled in the art can adjust it based on specific scenarios. For example, a circular support ring 61 is used. For another example, the support assembly 6 is integrally formed with the cleaning base 2. Of course, the support assembly 6 may not be provided, so that the connecting portion 4 is directly connected to the cleaning upper shell 3. The provision of the auxiliary rotating part is not necessary, and those skilled in the art can choose whether to provide the auxiliary rotating part and the specific structure of the auxiliary rotating part based on the specific application scenario. The auxiliary rotating part can be a shaft sleeve, and of course the auxiliary rotating part may not be provided.

[0045] See attached Figure 3 and 4 The driving mechanism is a driving motor 7, and the driven mechanism is a gear set, which is preferably a helical gear set. A driving wheel 72 in the gear set is provided on the driving end of the driving motor 7, and the driving wheel 72 meshes with a driven ring gear 8 in the gear set. The driving motor 7 is connected to the cleaning base 2 through a driving connection seat 71, and the driven ring gear 8 in the gear set is integrally formed with the connecting part 4. After the driving motor 7 is started, the driving wheel 72 is driven to rotate and drive the connecting part 4 to rotate, so that the floor scrubber can be turned.

[0046] Of course, the specific setting mode of the driving mechanism and the driven mechanism is not static. Without departing from the principle of the present application, those skilled in the art can adjust it so that the present application is applicable to more specific application scenarios. For example, the positions of the driving motor 7 and the gear set can also be swapped, or adjusted to other positions, such as setting the driving motor 7 on the support assembly 6 through the driving connection seat 71. For another example, the gear set is a spur gear set. For another example, the number of gears in the gear set can be single or multiple, and the transmission is realized by the meshing of multiple gears. For another example, a roller is connected to the driving end of the driving motor 7, and the driven mechanism is a rubber with large friction force. The rubber is connected to the connecting part 4, and the roller is pressed against the rubber to realize that the driving motor 7 drives the connecting part 4 to rotate. For another example, the driving motor 7 is arranged vertically, and a gear is arranged on the driving end of the driving motor 7, and a tooth groove is arranged on the outer side of the lower end of the connecting part 4, and the gear and the tooth groove are meshed. For another example, the driving motor 7 is arranged vertically, and a sprocket is arranged on the driving end of the driving motor 7, and a sprocket is also arranged on the outer side of the lower end of the connecting part 4, and the two sprockets are connected by chain transmission. For another example, the driving motor 7 is vertically arranged, a pulley is arranged on the driving end of the driving motor 7, a pulley is also arranged on the outer side of the lower end of the connecting part 4, and the two pulleys are connected by belt transmission.

[0047] See attached Figure 1-4 The connecting part 4 includes a first sleeve 41 and a second sleeve 42. The lower end of the first sleeve 41 is integrally provided with a driven gear ring 8. The first sleeve 41 passes through the circular cavity, and a ball bearing 43 is provided between the first sleeve 41 and the support ring 61. The inner side of the lower end of the second sleeve 42 is provided with a thread and is threadedly connected to the upper end of the first sleeve 41. The upper end of the second sleeve 42 is connected to the lower end of the hand-held part 1.

[0048] Of course, the setting of the connecting part 4 is not necessary. Those skilled in the art can select the specific structure of the connecting part 4 based on the specific application scenario. For example, the first sleeve 41 and the driven gear ring 8 are separately set and connected by threads; for another example, the second sleeve 42 passes through the circular cavity, and the outer side of the lower end of the second sleeve 42 is provided with a thread, and is threadedly connected to the first sleeve 41, etc.

[0049] See attached Figure 4 and 5The position sensor 9 is installed in the cavity of the cleaning upper shell 3, and a position identification block 63 is provided on the outside of the second sleeve 42. The position sensor 9 can detect the position of the position identification block 63, thereby detecting whether the cleaning base 2 is returned to the center, and sending a vibration signal outward when the cleaning base 2 is returned to the center. Preferably, the position sensor 9 is an infrared distance sensor, and the position identification block 63 is a protruding structure formed by the second sleeve 42 extending outward. When the protruding structure is located at the detection end of the infrared distance sensor, the distance detected by the infrared distance sensor becomes shorter, and it is determined that the cleaning base 2 has returned to the center. The position sensor 9 can determine whether the cleaning base 2 is returned to the center, ensuring that the floor scrubber is in a forward driving state when working normally.

[0050] It should be noted that the setting of the position sensor 9 is not necessary. Those skilled in the art can choose whether to set the position sensor 9 and the specific structure of the position sensor 9 based on the specific application scenario. Of course, the position sensor 9 can also be an optical distance sensor, an ultrasonic distance sensor or a micro switch, wherein the principles of the optical distance sensor and the ultrasonic distance sensor are similar to those of the infrared distance sensor, and this application will not repeat them. The micro switch is a switch that uses a very small force. It is a switch in which an external mechanical force acts on the action reed through a transmission element to quickly connect or disconnect the fixed contact and the moving contact at its end. The micro switch can be triggered by using a position identification block 63. The specific way to send out a vibration signal can be to set a vibration motor in the handheld part, and when the position sensor 9 detects that the cleaning base 2 is back to the normal position, a signal is sent to the control unit, and the control unit controls the vibration motor to start.

[0051] The control unit is mounted on the cleaning base 2, and is used to receive signals and control the actions of related components. For example, when the control unit receives a signal from the turn button 11, the control unit controls the drive motor 7 to rotate, so that the cleaning base 2 changes direction. The specific selection of the control unit is prior art and will not be repeated here.

[0052] The following is a brief introduction to the turning and returning process of the floor scrubber of the present application.

[0053] Taking turning left as an example, when the user of the floor scrubber needs the floor scrubber to turn left, he presses the steering button 11 on the left side of the hand-held part 1, and the signal is transmitted to the control part. The control part controls the drive motor 7 to rotate, and the drive motor 7 drives the first sleeve 41 to rotate relative to the cleaning base 2. When the hand-held part 1 does not move, the moving direction of the cleaning base 2 changes, thereby realizing the steering of the cleaning base 2.

[0054] There are two situations when the cleaning base 2 turns. One is that the cleaning base 2 needs to turn or make a U-turn, and the other is that the cleaning base 2 needs to change lanes.

[0055] When it is necessary to control the cleaning base 2 to turn or reverse, after the direction of travel of the cleaning base 2 is toward the direction to be cleaned, release the steering button 11, the drive motor 7 no longer drives the first sleeve 41 to rotate relative to the cleaning base 2, and the user and the handheld part 1 move to the rear side of the cleaning base 2. When the user moves to the rear side of the cleaning base 2, the position sensor 9 detects that the cleaning base 2 has returned to the center, and sends a signal to the control unit that it has returned to the center. The control unit controls the vibration motor to vibrate to remind the user that it has returned to the center. However, if the direction of travel of the cleaning base 2 is not accurately toward the direction to be cleaned, the steering button 11 can be pressed accordingly according to the direction in which the cleaning base 2 is deflected, so that the cleaning base 2 returns to the center.

[0056] When the cleaning base 2 needs to change lanes, the user moves to the route where the cleaning base 2 is about to change lanes, presses the steering button 11 on the right side of the handheld part 1, and the cleaning base 2 rotates in the opposite direction. The position sensor 9 detects that the cleaning base 2 has returned to the center, and sends a signal to the control part that it has returned to the center. The control part controls the drive motor 7 to stop rotating, and the vibration motor vibrates at the same time to remind the user that it has returned to the center.

[0057] Those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments may be used in any combination.

[0058] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A floor scrubber, characterized in that: It includes a handheld part, a cleaning base, a connecting part and a control part; The handheld part is provided with a steering trigger component; The cleaning base is provided with a cleaning component; One end of the connecting part is connected to the handheld part, and the other end of the connecting part is rotatably connected to the cleaning base. One of the connecting part and the cleaning base is provided with a driving mechanism, and the other is provided with a driven mechanism, and the driving mechanism is cooperatively connected with the driven mechanism; The control unit is connected to the steering trigger assembly and the driving mechanism at the same time, and is configured to receive a signal from the steering trigger assembly and control the operation of the driving mechanism based on the signal.

2. The floor scrubber according to claim 1, characterized in that: The steering trigger assembly includes two steering buttons, and the two steering buttons are respectively located on both sides of the handheld part; or The steering trigger assembly comprises a steering slider, the hand-held portion is provided with a slide groove, and the steering slider is slidably connected to the slide groove.

3. The floor scrubber according to claim 2, characterized in that: The steering trigger assembly further includes a contact, which is connected to the control unit. A trigger protrusion is provided on the steering button or the steering slider. In an initial state, there is a gap between the contact and the trigger protrusion.

4. The floor scrubber according to claim 1, characterized in that: The driving mechanism is a driving motor, the driven mechanism is a gear set, and the driving end of the driving motor is connected to the driving wheel in the gear set.

5. The floor scrubber according to claim 4, characterized in that: The gear set is a helical gear set.

6. The floor scrubber according to claim 1, characterized in that: The connecting part includes a first sleeve and a second sleeve, one end of the first sleeve is provided with the driven mechanism; one end of the second sleeve is connected to the other end of the first sleeve, and the other end of the second sleeve is connected to the handheld part.

7. The floor scrubber according to claim 1, characterized in that: It also includes a cleaning upper shell, on which a position sensor is arranged, and the position sensor is arranged to send out a signal when the cleaning base is returned to the normal position.

8. The floor scrubber according to claim 7, characterized in that: The position sensor is an infrared distance sensor, an optical distance sensor, an ultrasonic distance sensor or a micro switch.

9. The floor scrubber according to claim 1, characterized in that: The floor scrubber further comprises a supporting assembly, and the driving mechanism is arranged on the supporting assembly.

10. The floor scrubber according to claim 9, characterized in that: The support assembly includes a support leg and two support rings, the upper end of the support leg is connected to the support ring, the lower end of the support leg is connected to the cleaning base, the two support rings are butt-jointed to form a circular cavity, and the connecting portion passes through the circular cavity.

11. The floor scrubber according to claim 10, characterized in that: An auxiliary rotating member is arranged between the connecting portion and the circular cavity.

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