Cleaning brush head lifting mechanism and cleaning equipment

Abstract

The utility model discloses a cleaning brush head lifting mechanism and cleaning equipment. The cleaning brush head lifting mechanism comprises a cleaning brush, an installation frame and an abutting piece. The cleaning brush comprises a brush head, a connecting part and an end part, and the brush head is connected with the end part through the connecting part; the end part is accommodated in the mounting rack, and the connecting part extends in a direction far away from the mounting rack, so that the brush head extends out of the mounting rack; at least part of the pressing piece is arranged in the mounting frame, and the pressing piece is movably arranged towards the end part so as to press the end part and enable the connecting part and the brush head to tilt up in sequence; one of the connecting part and the mounting frame is provided with a concave part, the other one of the connecting part and the mounting frame is provided with a convex part, and the concave part and the convex part abut against each other when the connecting part tilts up. After the end part of the cleaning brush is pressed, the brush head of the cleaning brush tilts up; and when the connecting part tilts, the convex part is pressed into the concave part, so that the connecting part can be limited and stabilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to cleaning equipment technical field especially, relates to a kind of cleaning brush head lifting mechanism and cleaning equipment. BACKGROUND

[0002] The edge brush at the bottom of the existing sweeping robot or cleaning equipment is used to clean the ground. Since it is always in contact with the ground, when encountering obstacles, water or other objects that do not need to be swept, the brush head of the edge brush may continue to rotate, which cannot effectively clean and may cause splashing or other adverse effects.

[0003] The edge sweeping lifting device and cleaning equipment disclosed in the patent document with the application publication number CN 118716976 A apply force to the main body through the lifting component, and then the main body drives the cleaning arm to move, so that the cleaning arm switches from the first position to the second position. At this time, the cleaning arm is raised towards the top of the mounting bracket, and the cleaning arm can be separated from the ground or the table top. Although the patent document can raise the cleaning arm of the edge brush to avoid causing splashing or other adverse effects, when the cleaning arm of the edge brush is raised, since there is only a limiting hole for the cleaning arm to pass through, the cleaning arm is still prone to shaking. SUMMARY

[0004] The utility model aims to provide a cleaning brush head lifting mechanism, which can reduce the shaking of the cleaning brush and improve the stability when the cleaning brush is raised.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model provides a cleaning brush head lifting mechanism, which comprises a cleaning brush, a mounting bracket and a pressing member. The cleaning brush comprises a brush head, a connecting portion and an end portion. The brush head is connected through the connecting portion and the end portion. The end portion is accommodated in the mounting bracket, and the connecting portion extends away from the mounting bracket to make the brush head protrude outside the mounting bracket. The pressing member is at least partially arranged in the mounting bracket and is movably arranged towards the end portion to press the end portion, so that the connecting portion and the brush head are raised in sequence. One of the connecting portion and the mounting bracket is provided with a recess, and the other is provided with a protrusion. The recess and the protrusion are in abutment when the connecting portion is raised.

[0006] In one embodiment, the connecting portion is provided with the recess, and the mounting bracket is provided with the protrusion.

[0007] In one embodiment, the upper and lower sides of the connecting portion are respectively provided with the recess, and the upper and lower sides of the mounting bracket are respectively provided with the protrusion. The protrusions on the upper and lower sides can be respectively pressed into the recesses on the upper and lower sides.

[0008] In one embodiment, the protrusion is in the shape of a sphere, and the recess is in the shape of an arc-shaped groove.

[0009] In one embodiment, the cleaning brush is an integral plastic or metal piece with elasticity, so that the connecting portion and the brush head can be raised in sequence.

[0010] In one embodiment, the pressing member includes a screw rod, a shaft sleeve, and a damping device, the screw rod is threadedly connected with the shaft sleeve, and the shaft sleeve rotates with the screw rod; the damping device can hinder the rotation of the shaft sleeve, so that the shaft sleeve rises or falls.

[0011] In one embodiment, the pressing member further includes an outer sleeve, the outer sleeve is rotationally connected with the housing, and the outer sleeve is connected with the mounting frame; the outer sleeve is movably connected with the shaft sleeve in the axial direction of the shaft sleeve, and the outer sleeve is fixedly connected with the shaft sleeve in the circumferential direction of the shaft sleeve; the damping device can hinder the rotation of the outer sleeve, thereby hindering the rotation of the shaft sleeve.

[0012] In one embodiment, an inner circumferential wall of the outer sleeve is provided with a groove, and an outer circumferential wall of the shaft sleeve is provided with a protrusion; the groove is movably connected with the protrusion in the axial direction of the shaft sleeve, and the groove is fixedly connected with the protrusion in the circumferential direction of the shaft sleeve.

[0013] In one embodiment, the damping device is located outside the outer sleeve, and the damping device includes a roller and a damping groove, one end of the damping groove is wide, and the other end of the damping groove is narrow; the roller is installed in the damping groove, and the slot of the damping groove faces the outer circumferential wall of the outer sleeve.

[0014] A cleaning device includes a cleaning device main body, and further includes the cleaning brush head lifting mechanism according to any one of the technical solutions described above, and the cleaning brush head lifting mechanism is arranged on the cleaning device main body.

[0015] In summary, the technical scheme of the utility model has the following beneficial effects: (1) by including cleaning brush, mounting bracket and pressure piece;The cleaning brush includes brush head, connecting part, end part, the brush head is connected through the connecting part and the end part;The end part is accommodated in the mounting bracket, and the connecting part extends away from the mounting bracket, so that the brush head extends outside the mounting bracket;The pressure piece is at least partially arranged in the mounting bracket, and is movably arranged towards the end part, so as to press the end part, so that the connecting part and the brush head are sequentially raised;Thus, the end part is driven by the pressure piece to exert force downward, and then the connecting part and the brush head are sequentially raised, and the brush head can be separated from the surface to be cleaned.(2) One of the connecting part and the mounting bracket is provided with a recess, and the other is provided with a protrusion, and the recess and the protrusion abut when the connecting part is raised;Thus, when the connecting part is raised, the protrusion is pressed into the recess, thereby limiting and stabilizing the connecting part, thereby supporting the cleaning brush and preventing the cleaning brush from shaking. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Is the cross-sectional structure schematic view of the cleaning brush head lifting mechanism provided by the embodiment when the brush head of the cleaning brush is not raised;

[0017] Figure 2 Is the cross-sectional structure schematic view of the cleaning brush head lifting mechanism provided by the embodiment when the brush head of the cleaning brush is raised;

[0018] Figure 3 Is the three-dimensional structure schematic view of the cleaning brush head lifting mechanism provided by the embodiment when the brush head of the cleaning brush is not raised;

[0019] Figure 4 Is the three-dimensional structure schematic view of the cleaning brush head lifting mechanism provided by the embodiment when the brush head of the cleaning brush is raised;

[0020] Figure 5 Is the three-dimensional structure schematic view of the cleaning brush head lifting mechanism provided by the embodiment when the pressure piece cooperates with the mounting bracket;

[0021] Figure 6 Is the three-dimensional structure schematic view of the cleaning brush head lifting mechanism provided by the embodiment when the pressure piece cooperates with the mounting bracket;

[0022] Figure 7 Is Figure 6 The enlarged view of the A area of the figure;

[0023] Explanation of reference signs: 1-cleaning brush, 2-housing, 3-gear set, 4-pressure piece, 5-plate, 6-bottom cover, 7-cavity, 8-mounting bracket;

[0024] 101 - brush head, 102 - connecting part, 103 - end part, 104 - recess; 401 - screw rod, 402 - shaft sleeve, 4021 - protrusion, 403 - outer sleeve, 4031 - groove, 404 - damping, 4041 - roller, 4042 - damping groove; 701 - movable opening, 702 - protrusion. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, but will not constitute the limitation on the protection scope of the utility model.

[0026] In the utility model, in order to describe more clearly, make the following explanation: the observer faces the attached Figure 1 Observation, the upper part of the observer is set as upper, the lower part of the observer is set as lower, it should be indicated that the term "front end", "rear end", "left side" "right side", "middle part", "upper", "lower" in the text indicate the direction or positional relationship based on the direction or positional relationship of the drawing, only for the convenience of clearly describing the utility model, and is not the indication or implication of the structure or part indicated or implied must have a particular direction, with a particular direction structure, therefore, can not be understood as the limitation of the utility model. In addition, the term "first", "second", "third", "fourth" is only for the purpose of clear or simple description, and can not be understood as indicating or implying relative importance or quantity.

[0027] Referring to Figures 1-2The embodiment provides a cleaning brush head lifting mechanism, which comprises a cleaning brush 1, a mounting frame 8 and a pressing piece 4; the cleaning brush 1 comprises a brush head 101, a connecting part 102 and an end part 103, the brush head 101 is connected through the connecting part 102 and the end part 103; the end part 103 is accommodated in the mounting frame 8, and the connecting part 102 extends towards a direction away from the mounting frame 8, so that the brush head 101 extends outside the mounting frame 8; the pressing piece 4 is at least partially arranged in the mounting frame 8 and is movably arranged towards the end part 103, so as to press the end part 103 and make the connecting part 102 and the brush head 101 be lifted in sequence; one of the connecting part 102 and the mounting frame 8 is provided with a recess 104, and the other is provided with a protruding part 702, and the recess 104 and the protruding part 702 abut when the connecting part 102 is lifted. Effects: (1) the cleaning brush, the mounting frame and the pressing piece are arranged; the cleaning brush comprises a brush head, a connecting part and an end part, the brush head is connected through the connecting part and the end part; the end part is accommodated in the mounting frame, and the connecting part extends towards a direction away from the mounting frame, so that the brush head extends outside the mounting frame; the pressing piece is at least partially arranged in the mounting frame and is movably arranged towards the end part, so as to press the end part and make the connecting part and the brush head be lifted in sequence; the end part is pressed downwards by the pressing piece, and then the end part drives the connecting part and the brush head to move, so that the connecting part and the brush head are lifted in sequence, and the brush head can be separated from a surface to be cleaned, such as a ground or a table top. (2) one of the connecting part and the mounting frame is provided with a recess, and the other is provided with a protruding part, and the recess and the protruding part abut when the connecting part is lifted; when the connecting part is lifted, the protruding part is pressed into the recess, so that the connecting part is limited and stabilized, and the cleaning brush is supported, and shaking of the cleaning brush is avoided.

[0028] In one of the embodiments, referring to Figures 1-2 , the connecting part 102 is provided with the recess 104, and the mounting frame 8 is provided with the protruding part 702. Effects: the connecting part 102 is lifted, the mounting frame 8 is passively responded to the connecting part 102, and the recess 104 is wider than the protruding part 702, so that the wider recess 104 is more easily abutted with the protruding part 702 fixed on the mounting frame 8 when the connecting part 102 is lifted, and the position distribution of the recess 104 and the protruding part 702 is more easily to limit the connecting part.

[0029] In one of the embodiments, referring to Figures 1-2The upper and lower sides of the connecting part 102 are respectively provided with recesses 104, and the upper and lower sides of the mounting frame 8 are respectively provided with protrusions 702, which can be respectively pressed into the recesses 104 on the upper and lower sides. Effect: The protrusions 702 and the recesses 104 on the upper and lower sides are matched, thereby improving the limiting and stabilizing effect on the connecting part. In one embodiment, the recesses 104 on the upper and lower sides are correspondingly arranged and are on a vertical line, but can also be staggered. Effect: When the recesses 104 on the upper and lower sides are on a vertical line, they have good symmetry due to the correspondence between the upper and lower sides, and when the recesses 104 on the upper and lower sides are staggered, they have flexible position distribution although the symmetry is not good.

[0030] In one embodiment, referring to Figures 1-2 The protrusion 702 is spherical, and the recess 104 is arc-shaped. Effect: The spherical protrusion 702 and the arc-shaped recess 104 are matched and are more suitable for smooth lifting of the connecting part.

[0031] As a preferred embodiment, referring to Figures 3-4 The plurality of end parts 103 are connected to the inside of the mounting frame 8, and the plurality of brush heads 101 are distributed on the outside of the mounting frame 8. Effect: The plurality of brush heads can work together from multiple directions.

[0032] In one embodiment, referring to Figures 3-4 The cleaning brush 1 is an integral plastic or metal part with elasticity, so that the connecting part 102 and the brush head 101 can be lifted in sequence. Effect: The integral cleaning brush has good elasticity and strength.

[0033] In one embodiment, referring to Figures 1-2 The pressing part 4 includes a lead screw 401, a shaft sleeve 402, and a damper 404. The lead screw 401 is threadedly connected with the shaft sleeve 402, and the shaft sleeve 402 rotates with the lead screw 401. The damper 404 can hinder the rotation of the shaft sleeve 402, so that the shaft sleeve 402 rises or falls. Effect: When the lead screw 401 rotates forward or reversely, the shaft sleeve 402 rotates with the lead screw 401. Since the lead screw is fixed in the up-down direction, the rotation speed of the shaft sleeve 402 will be lower than that of the lead screw when the shaft sleeve 402 is subjected to the damping force (the shaft sleeve is subjected to the damping force whether it rotates forward or reversely, only the damping force is different; the damping force is smaller than the rotation force of the shaft sleeve, so it only hinders the rotation and does not stop it). As a result, the shaft sleeve 402 rises or falls in the thread cooperation with the lead screw. As a preferred embodiment, the lead screw 401 is driven to rotate by the gear set 3.

[0034] In one embodiment, referring to Figures 5-7The abutting piece 4 further comprises an outer sleeve 403, which is rotationally connected with the housing 2 and connected with the mounting frame 8. The outer sleeve 403 is movably connected with the shaft sleeve 402 in the axial direction of the shaft sleeve 402 and fixedly connected with the shaft sleeve 402 in the circumferential direction of the shaft sleeve 402. The damping 404 can hinder the rotation of the outer sleeve 403 and further hinder the rotation of the shaft sleeve 402. Action: The outer sleeve is arranged to output rotary motion to the cleaning brush. That is, the shaft sleeve is used to move up and down to abut or release the end of the brush head. The outer sleeve is used to cooperate with the damping to provide damping force and further used to drive the cleaning brush to rotate to realize daily cleaning. Even if the outer sleeve is not arranged, as long as damping can be applied to the shaft sleeve, the shaft sleeve can be raised or lowered.

[0035] In one embodiment, referring to Figures 6-7 The inner circumferential wall of the outer sleeve 403 is provided with a groove 4031, and the outer circumferential wall of the shaft sleeve 402 is provided with a protrusion 4021. The groove 4031 is movably connected with the protrusion 4021 in the axial direction of the shaft sleeve 402 and fixedly connected with the protrusion 4021 in the circumferential direction of the shaft sleeve 402. Action: Through the cooperation of the groove 4031 and the protrusion 4021, when the damping hinders the rotation of the outer sleeve 403, the outer sleeve 403 hinders the rotation of the shaft sleeve 402, so that the shaft sleeve 402 can move up and down relative to the lead screw and the outer sleeve 403 when the shaft sleeve 402 is driven by the lead screw thread. Of course, other structures with the same function are also possible.

[0036] In one embodiment, referring to Figures 6-7 The damping 404 is located outside the outer sleeve 403. The damping 404 comprises a roller 4041 and a damping groove 4042. One end of the damping groove 4042 is wide, and the other end of the damping groove 4042 is narrow. The roller 4041 is installed in the damping groove 4042, and the slot of the damping groove 4042 faces the outer circumferential wall of the outer sleeve 403. Action: Referring to Figures 1 to 4, (1) when the rotation direction of the lead screw is positive rotation: the shaft sleeve 402 drives the outer sleeve 403 to rotate positively, then the roller is pushed to the narrow end of the damping groove 4042 due to the friction force of the outer sleeve 403, under the action of the damping groove, the roller extrudes the outer sleeve 403, providing the outer sleeve 403 with a damping force in the opposite direction, thereby hindering the rotation of the outer sleeve 403 and the shaft sleeve 402 (at this time, although there is damping, the damping force is smaller than the rotation direction force of the outer sleeve 403, only hinders the rotation, and does not stop the rotation), since the lead screw is fixed in the up-down direction, therefore, after the outer sleeve 403 is subjected to the damping force, the rotation speed of the outer sleeve 403 and the shaft sleeve 402 will be lower than the rotation speed of the lead screw, so that the shaft sleeve 402 appears descending movement in the thread cooperation with the lead screw, and the descending shaft sleeve 402 will exert force on the end portion, thereby driving the connecting portion and the brush head to move with the end portion, so that the connecting portion and the brush head are raised in turn, and the brush head can be separated from the ground or the table top. (2) when the rotation direction of the lead screw is reverse rotation: the shaft sleeve 402 drives the outer sleeve 403 to reverse rotation, then the roller is pushed to the wide end of the damping groove 4042 due to the friction force of the outer sleeve 403, under the action of the damping groove, the roller extrudes the outer sleeve 403, providing the outer sleeve 403 with a damping force in the opposite direction, thereby hindering the rotation of the outer sleeve 403 and the shaft sleeve 402 (at this time, although there is damping, the damping force is smaller than the rotation direction force of the outer sleeve 403, only hinders the rotation, and does not stop the rotation), since the lead screw is fixed in the up-down direction, therefore, after the outer sleeve 403 is subjected to the damping force, the rotation speed of the outer sleeve 403 and the shaft sleeve 402 will be lower than the rotation speed of the lead screw, so that the shaft sleeve 402 appears ascending movement in the thread cooperation with the lead screw, and the ascending shaft sleeve 402 will remove the force exerted on the end portion, thereby driving the connecting portion and the brush head to move with the end portion, so that the connecting portion and the brush head are reset and descend, so as to clean the ground with the brush head. Therefore, it is known that one end of the damping groove 4042 is wide, and the other end of the damping groove 4042 is narrow, so that the damping in one rotation direction (narrow end) can be larger, and the damping in the other rotation direction (wide end) can be smaller. In this way, the speed of large damping is smaller, and the speed of small damping is larger.

[0037] As a preferred embodiment, the mounting frame 8 comprises the plate 5 and the bottom cover 6, the cavity 7 is enclosed between the plate 5 and the bottom cover 6, the side wall of the cavity 7 is provided with the movable opening 701; the end portion 103 is mounted in the cavity 7, the connecting portion 102 passes through the movable opening 701, the brush head 101 extends out of the cavity 7, the shaft sleeve 402 can pass through the plate 5 and press on the end portion 103; the upper and lower sides of the movable opening 701 are respectively provided with the protruding portions 702. Action: when the connecting portion 102 and the brush head 101 are lowered, there is a gap between the end portion 103 and the bottom cover 6, so as to leave enough space for the up-and-down movement of the end portion 103; the outer sleeve 403 can drive the plate 5 and the bottom cover 6 to rotate, thereby driving the cleaning brush to rotate. As a preferred embodiment, the number of dampers 404 is several, and the several dampers 404 are uniformly distributed around the circumferential direction of the outer sleeve 403. Action: the setting of the several dampers can realize stable and reliable damping effect of the outer sleeve 403, and the stress is uniform.

[0038] A cleaning device comprises a cleaning device body, and further comprises the cleaning brush head lifting mechanism of any one of the above technical solutions, and the cleaning brush head lifting mechanism is arranged on the cleaning device body. Action: after the cleaning device is provided with the cleaning brush head lifting mechanism of the above embodiment, 1, the brush head lifting and lowering reset of the cleaning brush can be realized by the forward rotation and reverse rotation of the lead screw, thereby increasing the controllability of the cleaning brush, and the cleaning area can be selected according to the need; 2, the setting of the protruding portion and the recessed portion can limit and stabilize the connecting portion when the connecting portion is raised, thereby supporting the cleaning brush and avoiding the shaking of the cleaning brush, and the stability is increased.

[0039] The above is the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements are also considered as the protection scope of the present application.

Claims

1. A cleaning brush head lifting mechanism, characterized in that: It comprises a cleaning brush (1), a mounting frame (8) and a pressing member (4); The cleaning brush (1) comprises a brush head (101), a connecting portion (102), and an end portion (103); the brush head (101) is connected to the end portion (103) via the connecting portion (102); the end portion (103) is accommodated in the mounting frame (8), and the connecting portion (102) extends in a direction away from the mounting frame (8), so that the brush head (101) extends out of the mounting frame (8); The pressing member (4) is at least partially disposed in the mounting frame (8) and is movably disposed toward the end portion (103) to press the end portion (103) so as to cause the connecting portion (102) and the brush head (101) to tilt up in sequence; One of the connecting portion (102) and the mounting frame (8) is provided with a recessed portion (104), and the other is provided with a raised portion (702). The recessed portion (104) and the raised portion (702) abut against each other when the connecting portion (102) is tilted.

2. The cleaning brush head lifting mechanism according to claim 1, characterized in that: The connecting portion (102) is provided with the recessed portion (104), and the mounting frame (8) is provided with a raised portion (702).

3. The cleaning brush head lifting mechanism according to claim 2, characterized in that: The connecting portion (102) is provided with the recessed portions (104) on the upper and lower sides respectively, and the mounting frame (8) is provided with the raised portions (702) on the upper and lower sides respectively, and the raised portions (702) on the upper and lower sides can be pressed into the recessed portions (104) on the upper and lower sides respectively.

4. The cleaning brush head lifting mechanism according to claim 1, characterized in that: The raised portion (702) is spherical, and the recessed portion (104) is arc-shaped.

5. The cleaning brush head lifting mechanism according to claim 1, characterized in that: The cleaning brush (1) is an integrated plastic or metal part with a certain elasticity, so that the connecting portion (102) and the brush head (101) can be tilted up in sequence.

6. The cleaning brush head lifting mechanism according to any one of claims 1 to 5, characterized in that: The pressing member (4) comprises a screw rod (401), a shaft sleeve (402), and a damper (404); the screw rod (401) is threadedly connected to the shaft sleeve (402); the shaft sleeve (402) rotates following the screw rod (401); and the damper (404) can hinder the rotation of the shaft sleeve (402) to make the shaft sleeve (402) rise or fall.

7. The cleaning brush head lifting mechanism according to claim 6, characterized in that: The pressing member (4) further includes an outer sleeve (403), the outer sleeve (403) being rotatably connected to the housing (2), and the outer sleeve (403) being connected to the mounting frame (8); the outer sleeve (403) being movably connected to the shaft sleeve (402) in the axial direction of the shaft sleeve (402), and the outer sleeve (403) being fixedly connected to the shaft sleeve (402) in the circumferential direction of the shaft sleeve (402); and the damping (404) can hinder the rotation of the outer sleeve (403), thereby hindering the rotation of the shaft sleeve (402).

8. The cleaning brush head lifting mechanism according to claim 7, characterized in that: The inner peripheral wall of the outer sleeve (403) is provided with a groove (4031), and the outer peripheral wall of the shaft sleeve (402) is provided with a protrusion (4021). The groove (4031) is movably connected to the protrusion (4021) in the axial direction of the shaft sleeve (402), and the groove (4031) is fixedly connected to the protrusion (4021) in the circumferential direction of the shaft sleeve (402).

9. The cleaning brush head lifting mechanism according to claim 7, characterized in that: The damper (404) is located outside the outer sleeve (403), and the damper (404) includes a roller (4041) and a damping groove (4042), one end of the damping groove (4042) is wide, and the other end of the damping groove (4042) is narrow; the roller (4041) is installed in the damping groove (4042), and the notch of the damping groove (4042) faces the outer peripheral wall of the outer sleeve (403).

10. A cleaning device, comprising a cleaning device body, characterized in that: It also includes the cleaning brush head lifting mechanism according to any one of claims 1 to 9, wherein the cleaning brush head lifting mechanism is arranged on the cleaning device body.

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