CN219680495U - Floor brush module for cleaning machine and cleaning machine - Google Patents

Abstract

A floor brush module for a cleaning machine and the cleaning machine, wherein the floor brush module comprises a shell, a dust collection cavity with an opening at the bottom is formed in the interior of the shell; the brush head is positioned in the dust collection cavity; the scraping plate can be arranged at the bottom of the shell in a vertical rotating manner and is positioned at the periphery of the opening, and the rotating axis of the scraping plate is a first axis; the first flexible scraping piece and the second flexible scraping piece are arranged on the edges of the two sides of the first axis of the scraping plate; the output end of the driving mechanism acts on the scraping plate and is used for driving the scraping plate to rotate to the following directions in the clockwise or anticlockwise direction: the first state that the scraping plate extends up and down, at this time, the first flexible scraping piece is positioned below the opening, and the second flexible scraping piece is positioned above the opening; the first flexible scraping element and the second flexible scraping element are positioned above the opening; and the scraping plate extends up and down to form a third state, and at the moment, the first flexible scraping piece is positioned above the opening, and the second flexible scraping piece is positioned below the opening. Compared with the prior art, the utility model can avoid the reciprocating motion of the scraping plate.

Description

Floor brush module for cleaning machine and cleaning machine

Technical Field

The utility model belongs to the technical field of household washing and cleaning, and particularly relates to a floor brush module for a cleaning machine and the cleaning machine.

Background

The structure disclosed in the present cleaning machine, for example, patent 202221997085.1, namely a floor brush module for cleaning machine and cleaning machine (issued with publication number CN 218279525U), generally comprises a floor brush module with a housing, a brush head and a scraping member, wherein the bottom wall of the housing has an opening, and the brush head is rotatably arranged at the opening; the scraping parts are respectively arranged at the front side and the rear side of the opening at the bottom of the shell so as to avoid dirt leakage during travelling or backing.

In order to avoid dirt leakage during travelling or retreating and also to take account of the absorption of large-particle dirt, people improve scraping parts, such as the structure disclosed in patent No. 201520816165.6, entitled floor brush and dust collector thereof (entitled publication No. CN 205197901U), which comprises a shell composed of an upper cover and a bottom plate, wherein an air flow channel is formed in the cavity inside the shell, a suction port is arranged below the bottom plate, the suction port is connected with an external vacuum source through an air channel, a brush body for cleaning the floor is further arranged in the shell, a first sealing strip is arranged on the rear side of the suction port on the bottom plate, a rotating shaft is arranged on the front side of the suction port on the bottom plate, a second sealing strip (namely the scraping part) is arranged on the rotating shaft, a groove capable of accommodating the second sealing strip is formed in a corresponding position on the bottom plate, and the second sealing strip is contacted with the floor or accommodated in the groove through the rotation of the rotating shaft. So that the position of the second sealing strip can be adjusted as required.

The above patent number 201520816165.6 has the following drawbacks: 1. the rotation of the second sealing strip and the rotating shaft is reciprocating motion, if the motor is used for driving, the motor needs to stop and reverse rotation, the motor has higher requirements, the cost is high, and the service life of the motor is short; 2. the second sealing strip which reciprocates has self-cleaning dead angles.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a floor brush module for a cleaning machine, so as to avoid the reciprocating motion of a scraping element.

The second technical problem to be solved by the utility model is to provide a cleaning machine with the floor brush module.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a floor brush module for a cleaning machine, comprising:

a housing having a dust suction chamber formed therein, the bottom of the dust suction chamber having an opening;

the brush head is positioned in the dust collection cavity and is arranged corresponding to the opening;

the scraping plate can be arranged at the bottom of the shell in a vertical rotating manner and is positioned at the periphery of the opening, and the rotating axis of the scraping plate is a first axis;

it is characterized in that the method also comprises the following steps:

the first flexible scraping piece and the second flexible scraping piece are arranged on the edges of the two sides of the first axis of the scraping plate;

the output end of the driving mechanism acts on the scraping plate and is used for driving the scraping plate to rotate to the following directions in the clockwise or anticlockwise direction:

the first state that the scraping plate extends up and down, at this time, the first flexible scraping piece is positioned below the opening, and the second flexible scraping piece is positioned above the opening;

the scraping plate is in a second state of basically horizontal extension, and the first flexible scraping piece and the second flexible scraping piece are positioned above the opening;

and the scraping plate extends up and down to form a third state, the first flexible scraping piece is positioned above the opening, and the second flexible scraping piece is positioned below the opening.

In this way, the driving mechanism can drive the scraping plate to sequentially rotate in the same direction to the first state, the second state and the third state, and when the scraping plate is in the first state or the third state, the scraping plate extends up and down, and the flexible scraping piece positioned below the scraping plate can be contacted with the ground so as to avoid dirt leakage when the cleaner moves or retreats; in the second state, the scraper is substantially parallel to the floor, facilitating dirt (especially large particle dirt) to be sucked into the housing. The driving mechanism only needs to drive the scraping plate to rotate along one direction, so that the service life of the driving mechanism is guaranteed.

Preferably, the scraper is disposed on the front side of the opening with the forward direction of the cleaner as the front side, and the first axis extends laterally.

Preferably, the first flexible scraping piece and the second flexible scraping piece are both in a strip shape extending leftwards and rightwards.

Further, a convex arc baffle is arranged at the position above the corresponding scraping plate of the shell. The arrangement of the arc-shaped baffle has the following effects: 1. the rotation of the scraping plate is not influenced, and dirt on the scraping plate can be prevented from being thrown out when the scraping plate rotates; 2. the arrangement of the arc-shaped baffle is favorable for self-cleaning of the scraping plate, and the driving mechanism can drive the scraping plate to rotate rapidly during self-cleaning, so that the arc-shaped baffle can avoid dirt splashing during rotation of the scraping plate.

In each of the above embodiments, preferably, the driving mechanism is a motor. The output shaft of the motor can be directly connected with the scraping plate, and also can be connected with the scraping plate through a transmission mechanism, and the transmission mechanism can be a combination of a large gear, a small gear and a transmission belt.

In order to solve the technical problem, the device preferably further comprises a detection device for detecting the rotation angle of the scraper and a control circuit connected with the output end of the detection device, wherein the output end of the control circuit is connected with the electric signal of the driving mechanism.

Preferably, the detecting device includes:

the rotating shaft is recorded as a first axial direction in the length direction, a first circumferential direction is formed in the direction around the first axial direction, and the central axis of the rotating shaft is the first axis of the scraping plate;

the detection ring is arranged on the periphery of the rotating shaft along the first circumferential direction, and is provided with a first conductive contact, a second conductive contact, a third conductive contact and a fourth conductive contact which are sequentially arranged at equal intervals along the first circumferential direction; the first conductive contact and the third conductive contact are electrically connected, and the second conductive contact and the fourth conductive contact are electrically connected;

the first end part of the conductive pointer is a free end which extends outwards relative to the side wall of the rotating shaft, and the free end can rotate along with the rotating shaft to a first position contacted with the first conductive contact, a second position contacted with the second conductive contact, a third position contacted with the third conductive contact and a fourth position contacted with the fourth conductive contact;

a detection circuit electrically connected to the conductive finger and arranged to output a first signal when the first end of the conductive finger is in the first position or the third position and a second signal when the first end of the conductive finger is in the second position;

the control circuit is electrically connected with the detection circuit and can receive the first signal and the second signal.

Preferably, the device further comprises a scraping strip extending leftwards and rightwards, arranged at the bottom of the shell and positioned at the rear side of the opening.

The utility model solves the second technical problem by adopting the technical proposal that: a cleaning machine characterized by having a floor brush module as described above.

Compared with the prior art, the utility model has the advantages that: the first flexible scraping element, the second flexible scraping element and the driving mechanism are arranged, the driving mechanism can drive the scraping plate to sequentially rotate to the first state, the second state and the third state along the same direction, and when the scraping plate extends up and down in the first state or the third state, the flexible scraping element positioned below the scraping plate can be contacted with the ground, so that dirt is prevented from leaking when the cleaner moves forwards or backwards; in the second state, the scraper is substantially parallel to the floor, facilitating dirt (especially large particle dirt) to be sucked into the housing. The driving mechanism only needs to drive the scraping plate to rotate along one direction, so that the service life of the driving mechanism is guaranteed.

Drawings

FIG. 1 is a schematic view of a floor brush module according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the floor brush module according to another embodiment of the present utility model (the scraper is in the second state);

FIG. 3 is a partial cross-sectional view of a floor brush module (with the squeegee in a second state) according to embodiments of the utility model;

FIG. 4 is a partial cross-sectional view of a floor brush module (with the squeegee in a first state) according to embodiments of the utility model;

FIG. 5 is a schematic diagram of a detecting device according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a schematic diagram of the electrical connection between the detection circuit, the conductive contacts and the conductive fingers in an embodiment of the present utility model;

fig. 8 is a schematic structural view of a cleaning machine according to an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Referring to fig. 1 to 8, a preferred embodiment of a floor brush module for a cleaning machine and a cleaning machine according to the present utility model includes a housing 1, a brush head 2, a scraper, a driving mechanism 4, an arc baffle 5, and a detecting device 6.

Wherein, taking the advancing direction of the cleaner as the front side, a dust collection cavity is formed in the shell 1, the bottom of the dust collection cavity is provided with four openings 10, and the openings 10 are arranged at intervals along the left-right direction. The rear side of each opening 10 is provided with a wiper strip 7 extending left and right.

The four brush heads 2 are positioned in the dust collection cavity and are arranged corresponding to the openings 10, and each brush head 2 is arranged in a mode of rotating around an axis extending up and down and is driven by a driving motor.

The scraper is arranged at the bottom of the shell 1 and is positioned at the front side of the opening 10. The scraping element comprises a scraping plate 3, a first flexible scraping element 31 and a second flexible scraping element 32, wherein the scraping plate 3 is in a long plate shape extending leftwards and rightwards, and transversely provided with two opposite long edges extending leftwards and rightwards, and the scraping plate 3 is arranged in a mode of being capable of rotating upwards and downwards around a first axis extending leftwards and rightwards and being positioned between the two long edges. The first flexible scraping element 31 and the second flexible scraping element 32 are respectively arranged on the long edges at the two sides of the first axis of the scraping plate 3 and are in a strip shape extending leftwards and rightwards.

The driving mechanism 4 is a motor, and an output shaft of the motor is connected with the scraping plate 3 through a transmission assembly and is used for driving the scraping plate 3 to rotate to the following direction clockwise or anticlockwise in sequence:

a first state in which the squeegee 3 extends up and down, in which the first flexible squeegee 31 is positioned below the opening 10 and the second flexible squeegee 32 is positioned above the opening 10 (as shown in fig. 4);

a second state in which the squeegee blade 3 extends substantially horizontally, in which both the first flexible squeegee member 31 and the second flexible squeegee member 32 are positioned above the opening 10 (as shown in fig. 3);

in a third state in which the squeegee 3 extends up and down, the first flexible squeegee 31 is positioned above the opening 10 and the second flexible squeegee 32 is positioned below the opening 10.

In this embodiment, the transmission assembly includes a large gear 41 coaxially connected to the output shaft of the motor, a small gear 42 (the axis of the small gear coincides with the first axis) connected to the scraper 3, and a transmission belt 43, where the transmission belt 43 is sleeved on the large gear 41 and the small gear 42 at the same time, so as to transmit the rotation power of the output shaft of the motor and the large gear 41 to the small gear 42, thereby driving the scraper 3 to rotate.

The arc baffle 5 protrudes upwards and is arranged at a position above the corresponding scraping plate 3 of the shell 1.

As shown in fig. 2, 5 and 6, the detecting device 6 is used for detecting the rotation angle of the scraper 3, and includes a rotating shaft 61, a detecting ring 62, a conductive pointer 65 and a detecting circuit 68. The rotating shaft 61 extends in the left-right direction and is connected with the scraping plate 3 (the central axis of the rotating shaft 61 is the first axis of the scraping plate 3); the detecting ring 62 is arranged on the periphery of the rotating shaft 61 along the first circumferential direction and fixed relative to the casing 1, the detecting ring 62 is a circuit board, and is provided with a first conductive contact 621, a second conductive contact 622, a third conductive contact 623 and a fourth conductive contact 624 which are sequentially arranged at equal intervals along the first circumferential direction; and the first conductive contact 621, the third conductive contact 623, the second conductive contact 622, and the fourth conductive contact 624 are electrically connected; the conductive pointer 65 is constrained to the rotating shaft 61 and can rotate along with the rotating shaft 61, the first end of the conductive pointer 65 is a free end extending outwards relative to the side wall of the rotating shaft 61, and the free end can rotate along with the rotating shaft 61 to a first position contacting the first conductive contact 621, a second position contacting the second conductive contact 622, a third position contacting the third conductive contact 623 and a fourth position contacting the fourth conductive contact 624; the detection circuit 68 is electrically connected to the conductive finger 65 and is arranged to output a first signal when the first end of the conductive finger 65 is in the first position or the third position and a second signal when the first end of the conductive finger 65 is in the second position or the fourth position. Meanwhile, the output end of the detection circuit 68 is connected with a control circuit which can receive the first signal and the second signal, and the output end of the control circuit is connected with the electric signal of the driving mechanism 4.

In this embodiment, as shown in fig. 7, the detection circuit 68 includes a controller 681, a first voltage dividing circuit 682, and a second voltage dividing circuit 683, and the controller 681 is a 5v single chip microcomputer, and has a power output port 6811, a first detection port 6812, and a second detection port 6813, and the power output port 6811 is electrically connected to the conductive pointer 65 through a third wire 66; the first voltage dividing circuit 682 has a first resistor and a second resistor (the resistance values of the first resistor and the second resistor are respectively denoted as R1 and R2) connected in series, a first input terminal of the first voltage dividing circuit 682 is electrically connected to the first conductive contact 621 through the first conductive wire 63, a second input terminal is grounded, and an output terminal (between the first resistor and the second resistor) is electrically connected to the first detection port 6812 of the controller 681; the second voltage dividing circuit 683 has a third resistor and a fourth resistor (the resistance values of the third resistor and the fourth resistor are respectively denoted as R3 and R4) connected in series, the first input terminal of the second voltage dividing circuit is electrically connected to the second conductive contact via the second conductive wire 64, the second input terminal is grounded, and the output terminal (between the third resistor and the fourth resistor) is electrically connected to the second detection port 6813 of the controller 681; that is, the controller 681 is arranged to determine whether to output the first signal based on the voltage value detected by the first detection port 6812, determine whether to output the second signal based on the voltage value detected by the second detection port 6813, and transmit the signals to the control circuit. Specifically, when the first end of the conductive finger 65 is not in contact with the conductive contact, the voltage value detected by the first detection port 6812 is 0, the voltage value detected by the second detection port 6813 is 0, and is at a low level, and the controller 681 outputs neither the first signal nor the second signal; when the first end of the conductive pointer 65 contacts the first conductive contact 621 or the third conductive contact 623, the voltage value detected by the first detection port 6812 is [ R2/(r1+r2) ]×5v, and is at a high level, the voltage value detected by the second detection port 6813 is at a 0 level, and the controller 681 outputs a first signal; when the first end of the conductive finger 65 contacts the second conductive contact 622 or the fourth conductive contact 624, the voltage value detected by the first detection port 6812 is 0, and is low, the voltage value detected by the second detection port 6813 is [ R4/(r3+r4) ] -5 v, and is high, and the controller 681 outputs the second signal.

Therefore, assuming that the blade 3 angle is 0 at the position of the first conductive contact 621, the present embodiment can obtain the following state of the blade 3: 1. the angle of the scraping plate 3 is 0 degree or 180 degrees; 2. the angle of the scraping plate 3 is 90 degrees or 270 degrees; 3. the blade 3 is not in state 1 or 2.

In this embodiment, the shaft 61 is arranged to be electrically conductive in order that rotation of the conductive finger 65 does not affect the electrical connection between the conductive finger 65 and the third wire 66; the detecting device 6 further includes a conductive sheet 67 extending along a direction perpendicular to the first axis of the scraper 3, and a first end of the conductive sheet 67 is connected to the third conductive wire 66, and a second end is attached to a side wall of the rotating shaft 61, so that the third conductive wire 66 is electrically connected to the conductive pointer 65.

It is worth noting that the utility model can adjust the position, the number and the number of the contacts according to the actual requirement, and more detailed angle information of the scraping plate 3 can be obtained.

As shown in fig. 8, the cleaning machine of the present embodiment is a floor cleaning machine, and has the above-mentioned floor brush module, a clean water tank, a sewage tank, a fan, etc. above the floor brush module, and the clean water tank, the sewage tank, the fan, etc. are all in the prior art, and the connection structure and the position distribution between the cleaning machine and the floor brush module can refer to the prior art, which is not described herein.

The scraper 3 of the embodiment can be in the second state when the cleaner advances through program setting, and at the moment, the large-particle dirt can be sucked into the dust collection cavity; when the cleaning machine is in the first state or the third state during the backward movement, dirt can be prevented from leaking during the backward movement.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims (9)

1. A floor brush module for a cleaning machine, comprising:

a housing (1) with a dust collection cavity formed in the interior, wherein the bottom of the dust collection cavity is provided with an opening (10);

the brush head (2) is positioned in the dust collection cavity and is arranged corresponding to the opening (10);

the scraping plate (3) is arranged at the bottom of the shell (1) in a vertical rotating manner, is positioned at the periphery of the opening (10), and the rotating axis of the scraping plate (3) is a first axis;

it is characterized in that the method also comprises the following steps:

the first flexible scraping piece (31) and the second flexible scraping piece (32) are arranged on the edges of the two sides of the first axis of the scraping plate (3);

the output end of the driving mechanism (4) acts on the scraping plate (3) and is used for driving the scraping plate (3) to rotate to the following direction along the clockwise or anticlockwise direction in sequence:

a first state in which the scraping plate (3) extends up and down, wherein the first flexible scraping member (31) is positioned below the opening (10), and the second flexible scraping member (32) is positioned above the opening (10);

a second state in which the scraper (3) extends substantially horizontally, in which both the first flexible scraper (31) and the second flexible scraper (32) are positioned above the opening (10);

in a third state in which the scraping plate (3) extends up and down, the first flexible scraping element (31) is located above the opening (10), and the second flexible scraping element (32) is located below the opening (10).

2. The floor brush module of claim 1, wherein: the scraper (3) is arranged on the front side of the opening (10) by taking the advancing direction of the cleaner as the front side, and the first axis extends leftwards and rightwards.

3. The floor brush module of claim 2, wherein: the first flexible scraping piece (31) and the second flexible scraping piece (32) are in a strip shape extending leftwards and rightwards.

4. The floor brush module of claim 1, wherein: an upward-protruding arc-shaped baffle (5) is arranged at the position above the corresponding scraping plate (3) of the shell (1).

5. The floor brush module of any one of claims 1-4, wherein: the driving mechanism (4) is a motor.

6. The floor brush module of claim 5, wherein: the automatic scraping device further comprises a detection device (6) for detecting the rotation angle of the scraping plate (3) and a control circuit connected with the output end of the detection device (6), wherein the output end of the control circuit is connected with the electric signal of the driving mechanism (4).

7. The floor brush module of claim 6, wherein: the detection device (6) comprises:

a rotating shaft (61), wherein the length direction of the rotating shaft (61) is a first axial direction, the direction around the first axial direction is a first circumferential direction, and the central axis of the rotating shaft (61) is the first axis of the scraping plate (3);

the detection ring (62) is arranged on the periphery of the rotating shaft (61) along the first circumferential direction, and the detection ring (62) is provided with a first conductive contact (621), a second conductive contact (622), a third conductive contact (623) and a fourth conductive contact (624) which are sequentially arranged at equal intervals along the first circumferential direction; the first conductive contact (621) and the third conductive contact (623) are electrically connected, and the second conductive contact (622) and the fourth conductive contact (624) are electrically connected;

a conductive finger (65) constrained with the shaft (61) and rotatable with the shaft (61), and a first end of the conductive finger (65) being a free end extending outwardly relative to a side wall of the shaft (61), the free end being rotatable with the shaft (61) to a first position in contact with the first conductive contact (621), a second position in contact with the second conductive contact (622), a third position in contact with the third conductive contact (623), a fourth position in contact with the fourth conductive contact (624);

a detection circuit electrically connected to the conductive finger (65) and arranged to output a first signal when the first end of the conductive finger (65) is in the first position or the third position and a second signal when the first end of the conductive finger (65) is in the second position;

the control circuit is electrically connected with the detection circuit and can receive the first signal and the second signal.

8. The floor brush module of any one of claims 2-4, wherein: the scraping strip (7) extends leftwards and rightwards, is arranged at the bottom of the shell (1) and is positioned at the rear side of the opening (10).

9. A cleaning machine having a floor brush module as claimed in any one of claims 1 to 8.