Floor brush structure capable of lifting scraping strip mechanism forwards and backwards
By designing the front and rear scraping mechanisms for linkage lifting, the problem of lack of scraping strips and large resistance in the front of the vacuum cleaner ground brush structure is solved, and uniform cleaning effect and movement efficiency are improved during the cleaning process.
Patent Information
- Application Number
- CN202310720806.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2043-06-16
AI Technical Summary
In the existing vacuum cleaner floor brush structure, the lack of scraping strips in the front leads to poor cleaning effect, and the raised or lowered scraping strip structure has great resistance during cleaning, making it inconvenient to move.
A ground brush structure that can lift and lower the scraper mechanism in front and rear is designed, and the linkage of the front and rear scraper strips is achieved through the lifting and lowering of the front and rear scrapers is ensured to ensure consistency of cleaning effects and movement efficiency when moving forward or backward. The structure includes a front scraper assembly, a rear scraper assembly and a lifting transmission assembly, and uses components such as the drive wheel, swing rod and transmission rod to achieve coordinated lifting of the scraper.
It achieves a uniform cleaning effect when moving forward or backward, reduces the moving resistance of the ground brush, improves dust removal efficiency, and maintains the intake ability of large-particle garbage.
Smart Images

Figure CN119138786A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of floor cleaning devices, and in particular to a floor brush structure with a scraper 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, generate negative air pressure in a sealed shell, and then suck up dust through an external suction pipe.
[0003] In the structure of the floor brush of the current vacuum cleaner, the floor brush usually has only a scraping strip at the rear portion but no scraping strip at the front portion, and some floor brushes with front and rear scraping strips can usually only raise or lower the front and rear scraping strips at the same time.
[0004] During the floor brush cleaning process, the floor brush with a scraper bar at the rear but no scraper bar at the front can achieve a cleaning effect when the scraper bar is pushed forward, but the cleaning effect is poor when it is pulled back. For the floor brush scraper bar structure that rises or falls at the same time, after the floor brush lowers the scraper bar at the same time, the floor brush with strong suction force will encounter great resistance when cleaning, making it inconvenient to move the floor 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 linkage, 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.
[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 be raised and lowered forward and backward, comprising:
[0007] The floor brush body has an air inlet at the bottom;
[0008] A front scraper bar assembly, comprising a front scraper bar mounting frame and a front scraper bar, wherein 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, comprising a rear scraping bar mounting frame and a rear scraping bar, wherein 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] A lifting transmission assembly comprises a driving wheel, a rear swing rod, a transmission rod and a front swing rod. 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 bottom of the driving wheel contacts the ground. The rear swing rod is rotatably mounted on the driving wheel. A first limiting groove for limiting its own rotation angle is provided on the driving wheel. The rear swing rod is arranged in the first limiting groove. A first connecting seat corresponding to the rear swing rod is provided on the rear scraping strip mounting frame. A first connecting head is provided on the first connecting seat. A first arc groove corresponding to the first connecting head is provided on the rear swing rod. The transmission rod is rotatably mounted on the driving wheel. A first arc hole is provided at one end of the transmission rod. One end of the front swing rod is hinged on the floor brush body, and a second connecting head is provided at the other opposite end. The second connecting head is penetrated through the first arc hole, and the second connecting head is slidably connected in the first arc hole. A third connecting seat is provided on the front scraping strip mounting frame, and a third connecting head is provided on the third connecting seat. A second arc groove corresponding to the first connecting head is provided on the front swing rod, 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 frame.
[0015] As a further description of the above technical solution:
[0016] A clamping groove is arranged 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 stoppers arranged along a straight line are arranged on the floor brush body, and the first stoppers contact the side surfaces of the rear scraper strip mounting frame.
[0019] As a further description of the above technical solution:
[0020] A second stopper is arranged 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] A rotating seat is arranged on the floor brush body, a driving wheel is rotatably mounted on the rotating seat, a second limiting groove is arranged on the rotating seat, a convex block is arranged on the back side of the driving wheel, and the convex block is slidably connected in the second limiting groove.
[0023] As a further description of the above technical solution:
[0024] A plug-in block is arranged on the back side of the rear swing rod, a second limiting hole corresponding to the position of the plug-in block is arranged 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 arranged 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 lifted and lowered in linkage through the lifting transmission assembly, and 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 lifted and lowered in linkage, which is effective 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 that can achieve 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 drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0030] Figure 1 The present invention is a structural schematic diagram of a floor brush structure having a scraper strip mechanism that can be raised and lowered forward and backward.
[0031] Figure 2 It is a partial cross-sectional view of a floor brush structure with a scraper strip 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 The present invention is a schematic diagram of the forward state of a lifting transmission component in a floor brush structure having a scraper strip mechanism that can lift forward and backward.
[0034] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.
[0035] Figure 6 The present invention is a schematic diagram of the backward state of a lifting transmission component in a floor brush structure having a scraper strip mechanism that can lift forward and backward.
[0036] Figure 7 The present invention is a schematic diagram of the installation structure of a 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] Fig. 9 The present invention is a schematic diagram of the installation structure of a front swing rod in a floor brush structure with a scraper strip mechanism that can be raised and lowered forward and backward.
[0039] Fig.10 for Fig. 9 A partial enlarged view of point C in the middle.
[0040] Legend:
[0041] 1. Floor brush body; 11. Air inlet; 12. First stopper; 13. Second stopper; 14. Rotating seat; 141. Second limiting groove; 2. Front scraper strip assembly; 21. Front scraper strip mounting bracket; 211. Third connecting seat; 22. Front scraper strip; 3. Rear scraper strip assembly; 31. Rear scraper strip mounting bracket; 311. First connecting seat; 312. Slot; 32. Rear scraper strip; 4. Lifting transmission assembly; 41. Driving wheel; 411. First limiting groove; 412. Bump; 413. Second limiting hole; 42. Rear swing rod; 421. First arc-shaped groove; 422. Plug-in block; 43. Transmission rod; 431. First arc-shaped hole; 44. Front swing rod; 441. Second connector; 442. Second arc-shaped groove; 443. Locking block. DETAILED DESCRIPTION
[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 here 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 claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are 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, further definition and explanation thereof is not required in subsequent drawings.
[0045] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 be raised and lowered forward and backward, comprising:
[0048] The floor brush body 1 has an air inlet 11 at the bottom;
[0049] The front scraper bar assembly 2 includes a front scraper bar mounting frame 21 and a front scraper bar 22. 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 installed 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;
[0050] The rear scraper bar assembly 3 includes a rear scraper bar mounting frame 31 and a rear scraper bar 32. The rear scraper bar mounting frame 31 is arranged in the floor brush body 1, the rear scraper bar mounting frame 31 is elastically connected to the floor brush body 1, the rear scraper bar 32 is mounted on the rear scraper bar mounting frame 31, the rear scraper bar 32 is passed through the bottom surface of the floor brush body 1, and the rear scraper bar mounting frame 31 and the front scraper bar mounting frame 21 are respectively arranged on both sides of the air inlet 11;
[0051] A lifting transmission assembly 4, which includes 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 installed on the floor brush body 1, and the bottom of the driving wheel 41 contacts the ground. The rear swing rod 42 is rotatably installed 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. A first connecting seat 311 corresponding to the rear swing rod 42 is provided on the rear scraper strip mounting frame 31. A first connecting head is provided on the first connecting seat 311. A first arc groove 421 corresponding to the first connecting head is provided on the rear swing rod 42. 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 rod 42. At the same time, the rear swing rod 42 limits The rear scraper strip mounting frame 31 moves upward and downward, and after the rear swing arm 42 swings upward to the maximum angle, the driving wheel 41 continues to rotate until the rear swing arm 42 abuts 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, and a first arc hole 431 is provided at one end of the transmission rod 43, and one end of the front swing arm 44 is hinged on the floor brush body 1, and a second connecting head 441 is provided at the other opposite end, and the second connecting head 441 is penetrated through the first arc hole 431, and the second connecting head 441 is slidably connected in the first arc hole 431, and 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, and a second arc groove 442 corresponding to the position of the first connecting head is provided on the front swing arm 44, and the third connecting head is slidably connected in the second arc groove 442. Similarly, the second arc groove 442 is used to limit the swing angle of the front swing rod 44, thereby limiting the movement of the transmission rod 43, and finally limiting the rotation angle of the driving wheel 41. The arrangement 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 strip mounting frame 31 and the front scraper strip mounting frame 21 are symmetrically arranged on both sides of the air inlet 11, so that when the floor brush body 1 is moved forward and backward, the cleaning effect of the floor remains consistent.
[0053] The rear scraper strip 32 is detachably mounted on the rear scraper strip mounting frame 31. A slot 312 is provided on the bottom surface of the rear scraper strip mounting frame 31. The rear scraper strip 32 is snapped into the slot 312, which facilitates the rapid disassembly and replacement of the rear scraper strip 32. The mounting structure of the front scraper strip 22 is the same as that of the rear scraper strip 32.
[0054] The floor brush body 1 is provided with a plurality of first stoppers 12 arranged in a straight line, and the first stoppers 12 contact the side of the rear scraper bar mounting frame 31. The first stoppers 12 can be arranged on one side of the rear scraper bar mounting frame 31, or on both sides of the rear scraper bar mounting frame 31, so as to improve the smoothness of the lifting and lowering movement of the rear scraper bar mounting frame 31.
[0055] A second stopper 13 is disposed 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 being offset when moving, thereby ensuring the transmission effect.
[0056] 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, and a protrusion 412 is provided on the back of the driving wheel 41, and the protrusion 412 is slidably connected in the second limiting groove 141. The protrusion 412 slides in the second limiting groove 141 as the driving wheel 41 rotates, and the second limiting groove 141 further limits the rotation angle of the driving wheel 41, 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 bar 42, and a second limiting hole 413 corresponding to the plug-in block 422 is provided on the driving wheel 41, and the plug-in block 422 is inserted into the second limiting hole 413. As the rear swing bar 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 rod 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 accordingly, 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 scraper strip mounting frame 31 is squeezed downward, and the rear scraper 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 scraper strip mounting frame 21, so that the front scraper strip 22 rises and retracts into the floor brush body 1. For details, please refer to the attached Figure 4 .
[0060] During the backward movement of the floor brush body 1: the driving wheel 41 rotates backward accordingly, and the rear swing rod 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 rod 42 and 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 with the driving wheel 41, and the front swing rod 44 rotates accordingly. The end of the front swing rod 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 scraper bar 22 and the rear scraper bar 32 are linked and lifted through the lifting transmission assembly 4. 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 22 is raised and the rear scraper bar 32 is lowered, which reduces the forward resistance and does not affect the suction of large particles of garbage and dust removal; when the floor brush moves backward, the front scraper bar 22 is lowered and the rear scraper bar 32 is raised, realizing two strokes of pushing forward and pulling backward to achieve equal cleaning.
[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope 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) having an air inlet (11) disposed 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 scraper bar assembly (3), comprising a rear scraper bar mounting frame (31) and a rear scraper bar (32), wherein the rear scraper bar mounting frame (31) is arranged in the floor brush body (1), the rear scraper bar mounting frame (31) is elastically connected to the floor brush body (1), the rear scraper bar (32) is mounted on the rear scraper bar mounting frame (31), the rear scraper bar (32) is passed through the bottom surface of the floor brush body (1), and the rear scraper bar mounting frame (31) and the front scraper bar 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), wherein the two lifting transmission assemblies (4) are symmetrically arranged on both sides of the floor brush body (1), wherein the driving wheel (41) is rotatably mounted on the floor brush body (1), wherein the bottom of the driving wheel (41) contacts the ground, wherein the rear swing rod (42) is rotatably mounted on the driving wheel (41), wherein the driving wheel (41) is provided with a first limiting groove (411) for limiting its own rotation angle, wherein the rear swing rod (42) is arranged in the first limiting groove (411), wherein the rear scraper strip mounting frame (31) is provided with a first connecting seat (311) corresponding in position to the rear swing rod (42), wherein the first connecting seat (311) is provided with a first connector, wherein the rear swing rod (42) is provided with a first connecting seat (311) corresponding in position to the rear swing rod (42), wherein the first connecting seat (311) is provided with a first connector, wherein the rear swing rod (42) is provided with a first connecting seat (311) corresponding in position to the rear swing rod (42), wherein the first connecting seat (311) 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), the front scraper strip mounting frame (21) is provided with a third connecting seat (211), the third connecting seat (211) is provided with a third connecting head, the front swing rod (44) is provided with a second arc groove (442) corresponding to the position of the first connecting head, and the third connecting head is slidably connected in the second arc groove (442).
2. A floor brush structure with a scraper strip 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. A floor brush structure with a scraper strip 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 stoppers (12) arranged along a straight line, and the first stoppers (12) contact the side surface of the rear scraper strip mounting frame (31).
6. A floor brush structure with a scraper strip 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. A 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. A floor brush structure with a scraper strip 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 position-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 inserted into the second position-limiting hole (413).
9. A 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).
Citation Information
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