A floor brush structure with a scraper mechanism that can be raised and lowered forward and backward

Abstract

The present invention discloses a floor brush structure with a scraper bar mechanism that can be raised and lowered forward and backward, comprising: a floor brush body; a front scraper bar assembly; a rear scraper bar assembly; and a lifting transmission assembly, which includes a driving wheel, a rear swing bar, a transmission rod, and a front swing bar. The two lifting transmission assemblies are symmetrically arranged on both sides of the floor brush body. The driving wheel is rotatably mounted on the floor brush body, and the rear swing bar is rotatably mounted on the driving wheel. The rear scraper bar mounting frame is provided with a first connecting seat corresponding to the rear swing bar. The transmission rod is rotatably mounted on the driving wheel. One end of the transmission rod is provided with a first arc-shaped hole. One end of the front swing bar is hinged to the floor brush body, and the other end opposite to the front swing bar is provided with a second connector. The second connector is slidably connected to the first arc-shaped hole. Compared with the prior art, when the floor brush is in use, the front scraper bar and the rear scraper bar are linked and lifted, which has obvious effects in improving dust removal efficiency and reducing the movement resistance of the floor brush, so that the cleaning effect of the floor brush remains consistent when moving forward or backward.

Description

Technical Field

[0001] The present invention relates to the technical field of floor cleaning devices, and in particular to a floor brush structure with a scraping strip mechanism capable of lifting forward and backward. Background Art

[0002] A vacuum cleaner is a widely used cleaning device. The working principle of a vacuum cleaner is to use an electric motor to drive the blades to rotate at high speed, generating negative air pressure in a sealed housing, and then sucking dust through an external suction pipe.

[0003] In the structure of the floor brush of the current vacuum cleaner, the floor brush usually has a scraping bar only at the rear and no scraping bar at the front, and some floor brushes with front and rear scraping bars can usually only raise or lower the front and rear scraping bars at the same time.

[0004] During floor brush cleaning, a brush with a scraper bar at the rear but no scraper bar at the front can clean effectively when the scraper bar is pushed forward, but the cleaning effect is poor when it is pulled back. In a floor brush with scraper bars that rise and fall simultaneously, the strong suction of the brush will encounter great resistance when moving, making it difficult to move the brush. Summary of the Invention

[0005] The purpose of the present invention is to provide a floor brush structure with a scraper bar mechanism that can be raised and lowered forward and backward. When the floor brush is in use, the front scraper bar and the rear scraper bar are lifted and lowered in a coordinated manner, which has obvious effects on improving dust removal efficiency and reducing the movement resistance of the floor brush, so that the cleaning effect of the floor brush remains consistent when moving forward or backward.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a floor brush structure with a scraper mechanism that can lift forward and backward, comprising:

[0007] The floor brush body has an air inlet at the bottom;

[0008] A front scraper bar assembly includes a front scraper bar mounting frame and a front scraper bar. The front scraper bar mounting frame is arranged in the floor brush body, the front scraper bar mounting frame is elastically connected to the floor brush body, the front scraper bar is mounted on the front scraper bar mounting frame, and the front scraper bar is passed through the bottom surface of the floor brush body.

[0009] A rear scraping bar assembly includes a rear scraping bar mounting frame and a rear scraping bar. The rear scraping bar mounting frame is arranged in the floor brush body, the rear scraping bar mounting frame is elastically connected to the floor brush body, the rear scraping bar is mounted on the rear scraping bar mounting frame, the rear scraping bar is passed through the bottom surface of the floor brush body, and the rear scraping bar mounting frame and the front scraping bar mounting frame are respectively arranged on both sides of the air inlet;

[0010] The lifting transmission assembly includes a driving wheel, a rear swing arm, a transmission rod and a front swing arm. The two lifting transmission assemblies are symmetrically arranged on both sides of the floor brush body. The driving wheel is rotatably mounted on the floor brush body, the bottom of the driving wheel contacts the ground, and the rear swing arm is rotatably mounted on the driving wheel. The driving wheel is provided with a first limiting groove for limiting its own rotation angle, the rear swing arm is arranged in the first limiting groove, the rear scraper strip mounting frame is provided with a first connecting seat corresponding to the rear swing arm in position, the first connecting seat is provided with a first connecting head, the rear swing arm is provided with a first arc groove corresponding to the first connecting head in position, the transmission rod is rotatably mounted on the driving wheel, one end of the transmission rod is provided with a first arc hole, one end of the front swing arm is hinged on the floor brush body, and the other end opposite to it is provided with a second connecting head, the second connecting head is penetrated into the first arc hole, the second connecting head is slidably connected in the first arc hole, the front scraper strip mounting frame is provided with a third connecting seat, the third connecting seat is provided with a third connecting head, the front swing arm is provided with a second arc groove corresponding to the first connecting head, and the third connecting head is slidably connected in the second arc groove.

[0011] As a further description of the above technical solution:

[0012] The rear scraper strip mounting frame and the front scraper strip mounting frame are symmetrically arranged on both sides of the air inlet.

[0013] As a further description of the above technical solution:

[0014] The rear scraper strip is detachably mounted on the rear scraper strip mounting bracket.

[0015] As a further description of the above technical solution:

[0016] A clamping groove is provided on the bottom surface of the rear scraper strip mounting frame, and the rear scraper strip is clamped in the clamping groove.

[0017] As a further description of the above technical solution:

[0018] A plurality of first blocks arranged along a straight line are provided on the floor brush body, and the first blocks contact the side surface of the rear scraper strip mounting frame.

[0019] As a further description of the above technical solution:

[0020] A second stopper is provided on one side of the transmission rod, and the second stopper contacts the side surface of the transmission rod.

[0021] As a further description of the above technical solution:

[0022] The floor brush body is provided with a rotating seat, the driving wheel is rotatably installed on the rotating seat, the rotating seat is provided with a second limiting groove, the back of the driving wheel is provided with a protrusion, and the protrusion is slidably connected in the second limiting groove.

[0023] As a further description of the above technical solution:

[0024] A plug-in block is provided on the back of the rear swing arm, a second limiting hole corresponding to the position of the plug-in block is provided on the driving wheel, and the plug-in block is passed through the second limiting hole.

[0025] As a further description of the above technical solution:

[0026] A locking block is provided at the end of the second connector.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. In the present invention, when the floor brush is in use, the front scraper bar and the rear scraper bar are linked and lifted through the lifting transmission assembly. The front and rear scraper bars can be lifted and lowered at the same time, and the front and rear scraper bars are in different states. When the floor brush moves forward, the front scraper bar rises and the rear scraper bar falls, reducing the forward resistance while not affecting the suction of large particles of garbage and dust removal; when the floor brush moves backward, the front scraper bar falls and the rear scraper bar rises, achieving two strokes of pushing forward and pulling backward to achieve equal cleaning. The front scraper bar and the rear scraper bar are linked and lifted, which has obvious effects in improving the dust removal efficiency and reducing the movement resistance of the floor brush, so that the cleaning effect of the floor brush remains consistent when moving forward or backward. The realization of the front and rear lifting functions, including but not limited to this structural composition; the process of achieving such lifting and lowering results are all protected by the scope of this patent. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a structural diagram of a floor brush structure with a scraper mechanism that can be raised and lowered forward and backward.

[0031] Figure 2 This is a partial cross-sectional view of a floor brush structure with a scraper mechanism that can be raised and lowered forward and backward.

[0032] Figure 3 for Figure 2 A partial enlarged view of point D in the middle.

[0033] Figure 4 This is a schematic diagram of the forward state of a lifting transmission assembly in a floor brush structure that can lift and lower the scraper strip mechanism forward and backward.

[0034] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0035] Figure 6 This is a schematic diagram of the backward state of the lifting transmission component in a floor brush structure with a scraper mechanism that can lift forward and backward.

[0036] Figure 7 This is a schematic diagram of the installation structure of the rear swing rod in a floor brush structure with a scraper strip mechanism that can be raised and lowered forward and backward.

[0037] Figure 8 for Figure 7 A partial enlarged view of point B in the middle.

[0038] Figure 9 This is a schematic diagram of the installation structure of the front swing rod in a floor brush structure with a scraper mechanism that can raise and lower the scraper bar forward and backward.

[0039] Figure 10 for Figure 9 A partial enlarged view of point C in the middle.

[0040] Legend:

[0041] 1. Floor brush body; 11. Air inlet; 12. First stop block; 13. Second stop block; 14. Rotating seat; 141. Second limiting groove; 2. Front scraper bar assembly; 21. Front scraper bar mounting bracket; 211. Third connecting seat; 22. Front scraper bar; 3. Rear scraper bar assembly; 31. Rear scraper bar mounting bracket; 311. First connecting seat; 312. Slot; 32. Rear scraper bar; 4. Lifting transmission assembly; 41. Driving wheel; 411. First limiting groove; 412. Bump; 413. Second limiting hole; 42. Rear swing arm; 421. First arc-shaped groove; 422. Plug-in block; 43. Transmission rod; 431. First arc-shaped hole; 44. Front swing arm; 441. Second connector; 442. Second arc-shaped groove; 443. Locking block. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0045] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are orientations or positional relationships in which the inventive product is usually placed when in use. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0046] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0047] See also Figure 1-10 The present invention provides a technical solution: a floor brush structure with a scraper mechanism that can lift forward and backward, comprising:

[0048] The floor brush body 1 has an air inlet 11 at its bottom;

[0049] The front scraper assembly 2 includes a front scraper mounting frame 21 and a front scraper 22. The front scraper mounting frame 21 is disposed in the floor brush body 1 and elastically connected to the floor brush body 1. The front scraper 22 is mounted on the front scraper mounting frame 21 and passes through the bottom surface of the floor brush body 1.

[0050] The rear scraping bar assembly 3 includes a rear scraping bar mounting frame 31 and a rear scraping bar 32. The rear scraping bar mounting frame 31 is arranged in the floor brush body 1. The rear scraping bar mounting frame 31 is elastically connected to the floor brush body 1. The rear scraping bar 32 is mounted on the rear scraping bar mounting frame 31. The rear scraping bar 32 passes through the bottom surface of the floor brush body 1. The rear scraping bar mounting frame 31 and the front scraping bar mounting frame 21 are respectively arranged on both sides of the air inlet 11;

[0051] The lifting transmission assembly 4 includes a driving wheel 41, a rear swing bar 42, a transmission rod 43 and a front swing bar 44. The two lifting transmission assemblies 4 are symmetrically arranged on both sides of the floor brush body 1. The driving wheel 41 is rotatably mounted on the floor brush body 1. The bottom of the driving wheel 41 contacts the ground. The rear swing bar 42 is rotatably mounted on the driving wheel 41. The driving wheel 41 is provided with a first limiting groove 411 for limiting its own rotation angle. The rear swing bar 42 is arranged in the first limiting groove 411. The rear scraper mounting frame 31 is provided with a first connecting seat 311 corresponding to the rear swing bar 42. The first connecting seat 311 is provided with a first connecting head. The rear swing bar 42 is provided with a first arc groove 421 corresponding to the first connecting head. The first connecting head on the first connecting seat 311 slides in the first arc groove 421 to limit the swing angle of the rear swing bar 42. At the same time, the rear swing bar 42 limits When the rear scraper strip mounting frame 31 moves upward and downward, after the rear swing link 42 swings upward to the maximum angle, the driving wheel 41 continues to rotate until the rear swing link 42 presses against the side wall of the first limiting groove 411, so that the rotation angle of the driving wheel 41 is limited, and the transmission rod 43 is rotatably mounted on the driving wheel 41. One end of the transmission rod 43 is provided with a first arc hole 431, and one end of the front swing link 44 is hinged on the floor brush body 1, and the other end opposite to it is provided with a second connecting head 441, the second connecting head 441 is passed through the first arc hole 431, and the second connecting head 441 is slidably connected in the first arc hole 431. A third connecting seat 211 is provided on the front scraper strip mounting frame 21, and a third connecting head is provided on the third connecting seat 211. A second arc groove 442 corresponding to the position of the first connecting head is provided on the front swing link 44, and the third connecting head is slidably connected in the second arc groove 442. Similarly, the second arcuate groove 442 is used to limit the swing angle of the front swing arm 44, thereby limiting the movement of the transmission rod 43, and ultimately limiting the rotation angle of the drive wheel 41. The provision of the first connecting seat 311 and the third connecting seat 211 effectively improves the integrity and linkage control effect of the lifting transmission assembly 4.

[0052] The rear scraper mounting frame 31 and the front scraper mounting frame 21 are symmetrically arranged on both sides of the air inlet 11, so that when the floor brush body 1 moves back and forth, the cleaning effect of the floor remains consistent.

[0053] The rear scraper 32 is detachably mounted on the rear scraper mounting bracket 31. A slot 312 is provided on the bottom surface of the rear scraper mounting bracket 31. The rear scraper 32 is snapped into the slot 312, allowing for quick assembly and disassembly of the rear scraper 32 and easy replacement. The mounting structure of the front scraper 22 is similar to that of the rear scraper 32.

[0054] The floor brush body 1 is provided with a plurality of first stops 12 arranged along a straight line, and the first stops 12 contact the side of the rear scraper mounting frame 31. The first stops 12 can be provided on one side of the rear scraper mounting frame 31, or on both sides of the rear scraper mounting frame 31 to improve the smoothness of the rear scraper mounting frame 31 when it is raised and lowered.

[0055] A second stopper 13 is provided on one side of the transmission rod 43, and the second stopper 13 contacts the side surface of the transmission rod 43. The second stopper 13 can prevent the transmission rod 43 from deflecting when it moves, thereby ensuring the transmission effect.

[0056] The floor brush body 1 is provided with a rotating base 14, and the driving wheel 41 is rotatably mounted on the rotating base 14. The rotating base 14 is provided with a second limiting groove 141. A protrusion 412 is provided on the back of the driving wheel 41, and the protrusion 412 is slidably connected to the second limiting groove 141. As the driving wheel 41 rotates, the protrusion 412 slides in the second limiting groove 141, further limiting the rotation angle of the driving wheel 41 through the second limiting groove 141, thereby further ensuring the stability of the lifting transmission assembly 4.

[0057] A plug-in block 422 is provided on the back of the rear swing arm 42. A second limiting hole 413 is provided on the driving wheel 41 at a position corresponding to the plug-in block 422. The plug-in block 422 is inserted into the second limiting hole 413. As the rear swing arm 42 rotates, the plug-in block 422 slides in the second limiting hole 413, further improving the integrity, stability, and linkage effect of the lifting transmission assembly 4.

[0058] The end of the second connector 441 is provided with a locking block 443. The locking block 443 prevents the second connector 441 from being separated from the first arc-shaped hole 431, thereby effectively ensuring the transmission between the transmission rod 43 and the front swing arm 44.

[0059] Working principle: When the floor brush is cleaning the floor, the floor brush body 1 is moving forward: the driving wheel 41 rotates forward, and the driving wheel 41 drives the rear swing rod 42 to rotate forward (clockwise), the end of the rear swing rod 42 is pressed down, the rear scraping strip mounting frame 31 is squeezed downward, and the rear scraping strip 32 extends downward from the bottom surface of the floor brush body 1. At the same time, the transmission rod 43 moves forward with the driving wheel 41, so that the second connecting head 441 of the front swing rod 44 slides in the first arc-shaped hole 431, and the front swing rod 44 rotates upward under the elastic force of the front scraping strip mounting frame 21, so that the front scraping strip 22 rises and retracts into the floor brush body 1. For details, please refer to the attached Figure 4 .

[0060] During the retreat of the floor brush body 1: the driving wheel 41 rotates backward accordingly, and the rear swing arm 42 rotates backward (counterclockwise) accordingly, and no longer presses the rear scraper strip mounting frame 31. The rear scraper strip mounting frame 31 rises under the pull of the rear swing arm 42 and the action of its own elastic force, and the rear scraper strip 32 rises and retracts into the floor brush body 1. At the same time, the transmission rod 43 is pulled backward by the driving wheel 41, and the front swing arm 44 rotates accordingly. The end of the front swing arm 44 presses the front scraper strip mounting frame 21 downward, and the front scraper strip 22 extends downward from the bottom surface of the floor brush body 1. For details, please refer to the attached Figure 6In addition, when the driving wheel 41 rotates to the extreme position, it no longer rotates, whether moving forward or backward, but generates sliding friction with the ground.

[0061] When the floor brush is in use, the front scraping bar 22 and the rear scraping bar 32 are linked and raised via the lifting transmission assembly 4. The front and rear scraping bars can simultaneously rise and fall, one at a time, and the other at different states. When the floor brush moves forward, the front scraping bar 22 rises and the rear scraping bar 32 falls, reducing forward resistance while not affecting the suction of large particles of dust or dust removal. When the floor brush moves backward, the front scraping bar 22 falls and the rear scraping bar 32 rises, achieving equal cleaning effects through two strokes: pushing forward and pulling backward.

[0062] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A floor brush structure with a scraper mechanism that can be raised and lowered forward and backward, characterized in that: include: A floor brush body (1) is provided with an air inlet (11) at the bottom thereof; A front scraper bar assembly (2), comprising a front scraper bar mounting frame (21) and a front scraper bar (22), wherein the front scraper bar mounting frame (21) is arranged in the floor brush body (1), the front scraper bar mounting frame (21) is elastically connected to the floor brush body (1), the front scraper bar (22) is mounted on the front scraper bar mounting frame (21), and the front scraper bar (22) is passed through the bottom surface of the floor brush body (1); A rear scraping strip assembly (3), comprising a rear scraping strip mounting frame (31) and a rear scraping strip (32), wherein the rear scraping strip mounting frame (31) is arranged in the floor brush body (1), the rear scraping strip mounting frame (31) is elastically connected to the floor brush body (1), the rear scraping strip (32) is mounted on the rear scraping strip mounting frame (31), the rear scraping strip (32) is passed through the bottom surface of the floor brush body (1), and the rear scraping strip mounting frame (31) and the front scraping strip mounting frame (21) are respectively arranged on both sides of the air inlet (11); A lifting transmission assembly (4) comprising a driving wheel (41), a rear swing rod (42), a transmission rod (43) and a front swing rod (44); the two lifting transmission assemblies (4) are symmetrically arranged on both sides of the floor brush body (1); the driving wheel (41) is rotatably mounted on the floor brush body (1); the bottom of the driving wheel (41) contacts the ground; the rear swing rod (42) is rotatably mounted on the driving wheel (41); the driving wheel (41) is provided with a first limiting groove (411) for limiting its own rotation angle; the rear swing rod (42) is arranged in the first limiting groove (411); the rear scraper strip mounting frame (31) is provided with a first connecting seat (311) corresponding to the rear swing rod (42); the first connecting seat (311) is provided with a first connector; the rear swing rod (42) is provided with a first connecting head; The first arc groove (421) of the first connecting head, the transmission rod (43) is rotatably mounted on the driving wheel (41), one end of the transmission rod (43) is provided with a first arc hole (431), one end of the front swing rod (44) is hinged on the floor brush body (1), and the other end opposite thereto is provided with a second connecting head (441), the second connecting head (441) is passed through the first arc hole (431), the second connecting head (441) is slidably connected in the first arc hole (431), a third connecting seat (211) is provided on the front scraper mounting frame (21), a third connecting head is provided on the third connecting seat (211), a second arc groove (442) corresponding to the position of the first connecting head is provided on the front swing rod (44), and the third connecting head is slidably connected in the second arc groove (442).

2. A floor brush structure with a scraper mechanism capable of lifting forward and backward according to claim 1, characterized in that: The rear scraper strip mounting frame (31) and the front scraper strip mounting frame (21) are symmetrically arranged on both sides of the air inlet (11).

3. A floor brush structure with a scraper mechanism capable of lifting forward and backward according to claim 1, characterized in that: The rear scraper strip (32) is detachably mounted on the rear scraper strip mounting frame (31).

4. A floor brush structure with a scraper mechanism capable of lifting forward and backward according to claim 3, characterized in that: A clamping groove (312) is provided on the bottom surface of the rear scraper strip mounting frame (31), and the rear scraper strip (32) is clamped in the clamping groove (312).

5. The floor brush structure with a scraper mechanism capable of lifting forward and backward according to claim 1, characterized in that: The floor brush body (1) is provided with a plurality of first blocks (12) arranged along a straight line, and the first blocks (12) contact the side surface of the rear scraper strip mounting frame (31).

6. A floor brush structure with a scraper mechanism capable of lifting forward and backward according to claim 1, characterized in that: A second stopper (13) is provided on one side of the transmission rod (43), and the second stopper (13) contacts the side surface of the transmission rod (43).

7. The floor brush structure with a scraper mechanism capable of lifting forward and backward according to claim 1, characterized in that: The floor brush body (1) is provided with a rotating seat (14), the driving wheel (41) is rotatably mounted on the rotating seat (14), the rotating seat (14) is provided with a second limiting groove (141), the back of the driving wheel (41) is provided with a protrusion (412), and the protrusion (412) is slidably connected in the second limiting groove (141).

8. The floor brush structure with a scraper mechanism capable of lifting forward and backward according to claim 1, characterized in that: A plug-in block (422) is provided on the back of the rear swing rod (42), a second limiting hole (413) corresponding to the position of the plug-in block (422) is provided on the driving wheel (41), and the plug-in block (422) is passed through the second limiting hole (413).

9. The floor brush structure with a scraper mechanism capable of lifting forward and backward according to claim 1, characterized in that: A locking block (443) is provided at the end of the second connector (441).

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