Floor brush assembly and floor washing machine

Abstract

The invention relates to the technical field of floor washing equipment, in particular to a floor brush assembly and a floor washing machine. Comprising a driving assembly, an obstacle crossing assembly, a supporting assembly and a plurality of supporting pulleys arranged in a rectangular shape, and the pulleys are sleeved with cleaning cloth to form a closed rectangle. The driving assembly comprises a driving motor, output rods and a transmission structure, the output rods are arranged at the two ends of the motor, and the motor is connected with a supporting pulley through the transmission structure to drive the supporting pulley to rotate. The obstacle crossing assembly is located on the two sides of the driving assembly and composed of a trigger rod and a translation rod, the translation rod is horizontally arranged, one end is connected with the supporting pulley, the other end is meshed with the trigger rod, and the trigger rod is connected with the pulley. The supporting assembly is arranged above the driving assembly and comprises a supporting rod connected with the pulley. In the prior art, the effective contact area of a brush roller is limited, so that the operation burden is large and the operation efficiency is low. Compared with the prior art, the cleaning cloth is rectangular, so that the contact area is greatly increased, the operation burden is relieved, and the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of floor cleaning equipment technology, and more particularly to a floor brush assembly and a floor cleaning machine. Background Technology

[0002] The core function of a home floor scrubber is to efficiently perform deep cleaning of floors. It can simultaneously remove both dry and wet debris, effectively handling stubborn mixed stains such as dust, hair, crumbs, and even spilled soup, sauces, and milk in one go, greatly improving the convenience of daily cleaning. Its core cleaning component is a continuously rotating brush roller driven by a motor. Once the device is started, the brush roller rotates continuously, using its high-speed friction and rolling action to efficiently scrub the floor, while the built-in suction system quickly recovers wastewater, achieving simultaneous washing and suction.

[0003] However, most household floor scrubbers on the market still have certain design limitations. The brush rollers are typically simple cylindrical structures, resulting in only a relatively narrow strip of contact area with the floor. Therefore, the effective contact area between the brush roller and the floor is limited. When faced with stubborn stains that are highly adhesive or have dried, this structure often cannot completely remove the dirt in a single cleaning cycle. Users have to repeatedly push the scrubber to clean the same area multiple times, increasing the workload and reducing overall cleaning efficiency. Summary of the Invention

[0004] To address the technical problems of existing technologies, this invention provides a floor brush assembly and a floor scrubbing machine.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A floor brush assembly includes: a cleaning cloth, a drive assembly, an obstacle-crossing assembly, a support assembly, and support pulleys. The drive assembly includes a drive motor, output rods, and a transmission structure. The output rods are respectively disposed at both ends of the drive motor and connected to the drive motor. The drive motor is connected to one of the support pulleys through the transmission structure to drive the support pulley to rotate. The obstacle-crossing assemblies are respectively disposed on both sides of the drive assembly. Each obstacle-crossing assembly includes a trigger rod and a translation rod. The translation rod is arranged horizontally. One end of the translation rod is connected to the support pulley. One end of the trigger rod engages with the translation rod, and the other end is connected to the support pulley. The support assembly is disposed on the side of the drive assembly away from the ground. The support assembly includes a support rod. One end of the support rod is connected to the support pulley. There are multiple support pulleys arranged in a rectangular pattern. The cleaning cloth is sleeved on the support pulleys to form a closed rectangle.

[0007] Furthermore, the transmission structure includes a driving gear, a driven gear, and a transmission rod; the driving gear is connected to the output rod; the driven gear is connected to one of the supporting pulleys; the transmission rod is arranged in a vertical direction; one end of the transmission rod meshes with the driving gear, and the other end meshes with the driven gear.

[0008] Furthermore, the transmission rod includes a positioning rod, a sliding rod, a transmission protrusion, and a transmission ring; the positioning rod is arranged vertically; the positioning rod meshes with the driving gear; the transmission protrusion surrounds the sliding rod; the transmission protrusion is fixedly connected to the sliding rod; one end of the sliding rod meshes with the driven gear; the other end of the sliding rod extends into the positioning rod; a spring is provided between the sliding rod and the positioning rod; there are two transmission rings; the transmission rings are connected to each other; one transmission ring is sleeved on the driven gear, and the other transmission ring is sleeved on the sliding rod.

[0009] Furthermore, the trigger rod includes a rotating rod and a telescopic rod; a rotating shaft is fixedly installed on one side of the rotating rod; a torsion spring is installed inside the rotating shaft; one end of the rotating rod meshes with a translation rod; one end of the telescopic rod extends into the rotating rod; the other end of the telescopic rod is connected to one of the supporting pulleys; a spring is installed between the telescopic rod and the rotating rod.

[0010] Furthermore, one end of the rotating rod is provided with a protruding tooth; the protruding tooth is arranged along the circumference of the rotating rod; a rack is fixedly arranged on the translation rod; the protruding tooth meshes with the rack.

[0011] Furthermore, the support assembly also includes a locking block and an unlocking structure; the locking block has a trapezoidal cross-section; the locking block is slidably disposed between the two support rods; the inclined surface of the locking block abuts against one end of the support rod; a return spring is provided on the locking block; the return spring abuts against the locking block to drive the locking block to slide relative to the support rod, so that the support rods move away from each other; the unlocking structure is drivenly connected to the locking block to drive the locking block to slide relative to the support rod, so that the support rods move closer together.

[0012] Furthermore, the unlocking structure includes an unlocking rod, a drive gear, and an unlocking gear; the unlocking rod is arranged vertically; the unlocking rod is slidably connected to the locking block; the sliding path of the unlocking rod corresponds to the unlocking gear so as to mesh with the unlocking gear; the unlocking gear is fixedly arranged on one side of the drive gear; the drive gear is connected to the output rod.

[0013] Furthermore, the support assembly also includes an abutment rod; the abutment rod is arranged in a horizontal direction; the abutment rod abuts against one end of the unlocking rod.

[0014] Furthermore, the support assembly also includes a connecting nut and a connecting stud; the connecting nut corresponds to the connecting stud; when the connecting nut is screwed onto the connecting stud, the connecting nut is fastened to one end of the abutment rod.

[0015] A floor scrubber includes a floor brush assembly as described above, and also includes a housing, a self-cleaning device, and an operating handle; the housing is connected to the operating handle; the housing has a cavity for accommodating the self-cleaning device and the floor brush assembly; the housing covers the housing and the self-cleaning device; the self-cleaning device corresponds to the floor brush assembly. Attached Figure Description

[0016] Figure 1 Overall structure diagram.

[0017] Figure 2 Internal overall structure diagram.

[0018] Figure 3 : Enlarged view of a local structure.

[0019] Figure 4 Overall structural diagram of the transmission structure.

[0020] In the diagram: 1. Cleaning cloth; 2. Drive assembly; 21. Drive motor; 22. Output rod; 23. Transmission structure; 231. Driving gear; 232. Driven gear; 233. Transmission rod; 2331. Positioning rod; 2332. Sliding rod; 2333. Transmission protrusion; 2334. Transmission ring; 3. Obstacle crossing assembly; 31. Trigger rod; 311. Rotating rod; 312. Telescopic rod; 32. Translation rod; 4. Support assembly; 41. Support rod; 42. Locking block; 43. Unlocking structure; 431. Unlocking rod; 432. Drive gear; 433. Unlocking gear; 44. Abutment rod; 45. Connecting nut; 46. Connecting stud; 5. Support pulley. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] Example 1:

[0023] A floor brush assembly includes: a cleaning cloth 1, a drive assembly 2, an obstacle-crossing assembly 3, a support assembly 4, and support pulleys 5. The drive assembly 2 includes a drive motor 21, an output rod 22, and a transmission structure 23. The output rod 22 is respectively disposed at both ends of the drive motor 21. The output rod 22 is connected to the drive motor 21. The drive motor 21 is connected to one of the support pulleys 5 via the transmission structure 23 to drive the support pulley 5 to rotate. The obstacle-crossing assemblies 3 are respectively disposed on both sides of the drive assembly 2. The obstacle-crossing assembly 3 includes a trigger rod 31 and a translation rod 32. The translation rod 32 is arranged horizontally. One end of the translation rod 32 is connected to the support pulley 5. One end of the trigger rod 31 engages with the translation rod 32, and the other end is connected to the support pulley 5. The support assembly 4 is disposed on the side of the drive assembly 2 away from the ground. The support assembly 4 includes a support rod 41. One end of the support rod 41 is connected to the support pulley 5. There are multiple support pulleys 5. The support pulleys 5 are arranged in a rectangular pattern. The cleaning cloth 1 is fitted onto the support pulley 5 so that the cleaning cloth 1 forms a closed rectangle.

[0024] In practical applications, the cleaning cloth 1 can use the same cleaning materials as existing household floor scrubbers. When the drive motor 21 is started, the drive motor 21 drives the corresponding support pulley 5 to rotate through the transmission structure 23, thereby driving the cleaning cloth 1 to rotate and clean the floor. Preferably, a rubber transmission belt is fixedly installed inside the cleaning cloth 1, and the support pulley 5 used to drive the cleaning cloth 1 has toothed grooves corresponding to the rubber transmission belt. The support pulley 5 meshes with the rubber transmission belt to drive the cleaning cloth 1 to rotate continuously. When an obstacle is encountered, the obstacle will first come into contact with the support pulley 5 of the obstacle-crossing component 3, thereby causing the trigger rod 31 to swing accordingly, and then the trigger rod 31 drives the translation rod 32 to slide accordingly. Thus, the relative position between the support pulleys 5 is adjusted, thereby adjusting the shape of the cleaning cloth 1 to a certain extent, so that the cleaning cloth 1 can cross the obstacle. On the other hand, the support rod 41 supports the cleaning cloth 1 through the corresponding support pulley 5. In summary, through the cooperation of the various components, the supporting pulleys 5 are arranged in a rectangular pattern, which in turn makes the cleaning cloth 1 a closed rectangle. This effectively increases the contact area between the cleaning cloth 1 and the ground, thereby reducing the operational burden and improving cleaning efficiency to a certain extent.

[0025] The transmission structure 23 includes a driving gear 231, a driven gear 232, and a transmission rod 233. The driving gear 231 is connected to the output rod 22. The driven gear 232 is connected to one of the supporting pulleys 5. The transmission rod 233 is arranged vertically. One end of the transmission rod 233 meshes with the driving gear 231, and the other end meshes with the driven gear 232.

[0026] The driving gear 231 and driven gear 232 are respectively disposed on both sides of the transmission rod 233. A gear structure for meshing with the driving gear 231 and driven gear 232 is fixedly disposed at the end of the transmission rod 233. The teeth on the corresponding driving gear 231 and driven gear 232 are disposed on the side to mesh with the transmission rod 233. When the drive motor 21 is started, the output end of the drive motor 21 drives the output rod 22 to rotate, thereby driving the driving gear 231 to rotate. Thus, the driving gear 231 drives the transmission rod 233 to rotate, thereby driving the driven gear 232 to rotate, and consequently driving the corresponding support pulley 5 to rotate.

[0027] The transmission rod 233 includes a positioning rod 2331, a sliding rod 2332, a transmission protrusion 2333, and a transmission ring 2334. The positioning rod 2331 is vertically oriented and meshes with the driving gear 231. The transmission protrusion 2333 surrounds the sliding rod 2332 and is fixedly connected to it. One end of the sliding rod 2332 meshes with the driven gear 232, and the other end extends into the positioning rod 2331. A spring is provided between the sliding rod 2332 and the positioning rod 2331. There are two transmission rings 2334 connected to each other. One transmission ring 2334 is fitted onto the driven gear 232, and the other transmission ring 2334 is fitted onto the sliding rod 2332.

[0028] When the driving gear 231 rotates, it drives the positioning rod 2331 to rotate. At this time, because the sliding rod 2332 has cross-shaped transmission protrusions 2333 fixedly arranged on it, and the positioning rod 2331 has grooves corresponding to the transmission protrusions 2333, the positioning rod 2331 can drive the sliding rod 2332 to rotate. Since the transmission ring 2334 is only fitted onto the sliding rod 2332 and the driven gear 232, it does not interfere with the rotation process of the sliding rod 2332 and the driven gear 232. Therefore, under the drive of the driving gear 231, the transmission rod 233 can normally drive the driven gear 232 to rotate.

[0029] When the support pulley 5 used for driving presses against an obstacle, the obstacle will exert a supporting force on the support pulley 5 in the opposite direction. This supporting force will act on the support pulley 5, and thus be transmitted to the sliding rod 2332 through the transmission ring 2334, causing the sliding rod 2332 to slide upward in the vertical direction, thereby compressing the spring between the sliding rod 2332 and the positioning rod 2331. In this way, the corresponding support pulley 5 is retracted. On the one hand, this allows the local brush assembly to cross the obstacle more smoothly. On the other hand, when the support pulley 5 retracts, the shape of the cleaning cloth 1 will change accordingly, making it easier to conform to the surface of the obstacle, and thus facilitating the cleaning of the obstacle's surface. When the support pulley 5 passes the obstacle, the spring force will be released, causing the support pulley 5 to return to its initial position.

[0030] The trigger lever 31 includes a rotating lever 311 and a telescopic lever 312. A rotating shaft is fixedly mounted on one side of the rotating lever 311. A torsion spring is installed inside the rotating shaft. One end of the rotating lever 311 meshes with a translation lever 32. One end of the telescopic lever 312 extends into the rotating lever 311. The other end of the telescopic lever 312 is connected to one of the support pulleys 5. A spring is installed between the telescopic lever 312 and the rotating lever 311. Meanwhile, one end of the rotating lever 311 is provided with a toothed protrusion. The toothed protrusion is arranged circumferentially along the rotating lever 311. A rack is fixedly mounted on the translation lever 32. The toothed protrusion meshes with the rack.

[0031] Since the obstacle-crossing components 3 are located on both sides of the drive components 2, the obstacle always contacts one of the obstacle-crossing components 3 first from one side of the cleaning cloth 1. When the cleaning cloth 1 contacts the obstacle, the obstacle will abut against the cleaning cloth 1, thereby applying a horizontal force through the cleaning cloth 1 to the corresponding support pulley 5. This force points from the support pulley 5 towards the drive components 2. At this time, the support pulley 5 of the obstacle-crossing component 3 rotates about the rotation axis of the rotating rod 311 under the action of this horizontal force. At the same time, since the support pulley 5 is still on the ground, it will push the telescopic rod 312 into the rotating rod 311 during the aforementioned rotation. On the other hand, during the rotation of the rotating rod 311, the rotating rod 311 will push the translation rod 32 to slide through the meshing relationship, thereby causing the translation rod 32 to drive the corresponding support pulley 5 to move away from the drive components 2. At this time, the support pulley 5 on the trigger rod 31 is in a retracted state, and the support pulley 5 on the translation rod 32 is in an extended state. This causes the shape of the cleaning cloth 1 to change, forming an inclined slope. This facilitates the movement of the cleaning cloth 1 over the obstacle, allowing it to cross it. Conversely, when subjected to an external force from the drive assembly 2 towards the obstacle-crossing assembly 3, the rotating rod 311 swings in the opposite direction, causing the support pulley 5 on the trigger rod 31 to extend and the support pulley 5 on the translation rod 32 to retract. When the external force is removed, the obstacle-crossing assembly 3 returns to its initial state under the action of the torsion spring inside the rotating shaft and the springs inside the telescopic rod 312 and the rotating rod 311.

[0032] It is worth noting that, in addition to being resisted by obstacles, when the shape of the cleaning cloth 1 changes, the cleaning cloth 1 will exert a pulling force on the support pulley 5, thereby applying an external force to the support pulley 5. Thus, the obstacle-crossing component 3 can cooperate with the support component 4 to allow the shape of the cleaning cloth 1 to adapt adaptively, thereby making the local brush component adapt to the ground conditions as much as possible. On the other hand, when the shape of the cleaning cloth 1 changes, the obstacle-crossing component 3 can cooperate with the drive component 2 to tension the cleaning cloth 1, thereby allowing the corresponding support pulley 5 to maintain a close fit with the cleaning cloth 1, enabling the support pulley 5 to drive the cleaning cloth 1 to rotate normally.

[0033] The support assembly 4 also includes a locking block 42 and an unlocking structure 43. The locking block 42 has a trapezoidal cross-section. The locking block 42 is slidably disposed between the two support rods 41. The inclined surface of the locking block 42 abuts against one end of the support rod 41. A return spring is provided on the locking block 42. The return spring abuts against the locking block 42 to drive the locking block 42 to slide relative to the support rods 41, so that the support rods 41 move away from each other. The unlocking structure 43 is drivenly connected to the locking block 42 to drive the locking block 42 to slide relative to the support rods, so that the support rods 41 move closer together.

[0034] Because the support pulley 5 on the support rod 41 is located on the side furthest from the ground, it is difficult for the support pulley 5 to be directly affected by obstacles, and it can only be affected by the pulling force of the cleaning cloth 1. Since the support rod 41 is limited by the locking block 42, it can support the corresponding support pulley 5 to maintain its current position, thereby supporting the cleaning cloth 1 and preventing excessive deformation of the cleaning cloth 1, which would prevent the drive assembly 2 from properly driving the cleaning cloth 1 to rotate.

[0035] The unlocking structure 43 includes an unlocking rod 431, a drive gear 432, and an unlocking gear 433. The unlocking rod 431 is vertically oriented. It is slidably connected to the locking block 42. The sliding path of the unlocking rod 431 corresponds to that of the unlocking gear 433, allowing it to mesh with the unlocking gear 433. The unlocking gear 433 is fixedly mounted on one side of the drive gear 432. The drive gear 432 is connected to the output rod 22. Specifically, the support assembly 4 also includes an abutment rod 44. The abutment rod 44 is horizontally oriented. It abuts against one end of the unlocking rod 431. Furthermore, the support assembly 4 also includes a connecting nut 45 and a connecting stud 46. The connecting nut 45 corresponds to the connecting stud 46. When the connecting nut 45 is screwed onto the connecting stud 46, it is secured to one end of the abutment rod 44.

[0036] The connecting stud 46 is used to assemble the local brush assembly with the housing of the floor scrubber. The connecting stud 46 is passed through a pre-drilled hole in the floor scrubber housing, and then the connecting nut 45 is screwed onto the connecting stud 46. After the connecting stud 46 passes through the floor scrubber housing, the housing covers the abutment rod 44. Simultaneously, when the connecting nut 45 is screwed on, it locks into the area corresponding to the abutment rod 44. This prevents the abutment rod 44 from falling off. Over time, when maintenance of the local brush assembly is required, the connecting nut 45 is removed, exposing the abutment rod 44. At this time, the operator manually pulls out the abutment rod 44, causing the unlocking rod 431 to lose its restraint. Thus, the unlocking rod 431 slides downwards under gravity, engaging with the unlocking gear 433. Meanwhile, a corresponding slider is fixedly installed at one end of the unlocking rod 431, and a groove corresponding to the unlocking rod 431 and the slider is opened in the locking block 42, and an abutment block corresponding to the slider is provided. Thus, one end of the unlocking rod 431 meshes with the unlocking gear 433, and the other end abuts against the locking block 42 through the abutment block. At this time, the drive motor 21 is started. The drive motor 21 drives the drive gear 231 to rotate through the output rod 22, which in turn drives the drive gear 432 to rotate through the positioning rod 2331. When the drive gear 432 rotates, it drives the unlocking gear 433 to rotate. Thus, through the meshing relationship with the unlocking rod 431, the unlocking rod 431 is pulled to move downward in the vertical direction, thereby pulling the locking block 42 through the unlocking rod 431. At this time, the support rod 41 is no longer restricted by the locking block 42, and can slide, thus moving closer to each other. At the same time, the return spring on the locking block 42 begins to exert its elastic force. This causes the support pulleys 5 on the support rod 41 to retract, thus ceasing to support the cleaning cloth 1. At this point, the operator can remove the cleaning cloth 1 for manual cleaning and maintenance of its internal structures. It is worth noting that although removing the cleaning cloth 1 also drives the drive assembly 2, the operation of the drive assembly 2 does not affect the retraction of the support rod 41. Preferably, a maintenance mode can be preset on the floor scrubber, in which the drive motor 21 operates at low speed and stops after a specific duration to maintain the retracted state of the support rod 41, facilitating operator work.

[0037] After maintenance is completed, the drive motor 21 is reversed, causing the accumulated spring force on the locking block 42 to gradually release, thus restoring the locking block 42 to its initial position. Then, the local brush assembly is inverted, causing the unlocking lever 431 to return to its initial position under gravity. After the unlocking lever 431 is reset, the abutment lever 44 is reinserted to limit the unlocking lever 431.

[0038] In summary, the cleaning cloth 1 of the local brush component can maintain a rectangular shape, thereby increasing the contact area with the ground, effectively reducing the operational burden and improving cleaning efficiency.

[0039] On the other hand, in addition to driving the cleaning cloth 1 to rotate, the drive component 2 also works with the obstacle-crossing component 3 to cross obstacles. This effectively simplifies the overall structure and enhances the adaptability of the local brush component to different ground conditions.

[0040] Meanwhile, the support component 4 can effectively support the cleaning cloth 1, thereby preventing the cleaning cloth 1 from undergoing excessive deformation.

[0041] Secondly, the unlocking structure 43 can work with the drive component 2 to unlock the support component 4, which on the one hand facilitates later maintenance by the staff. On the other hand, the overall structure can be simplified to some extent through the cooperation.

[0042] It is worth noting that the local brush assembly also includes a mounting plate. This mounting plate provides mounting points and limiting positions for the aforementioned structures. For example, the mounting plate has mounting points for mounting the rotating shaft of the rotating rod 311, and slide rails for supporting the directional sliding of the support rod 41 and the translation rod 32. Secondly, the mounting plate itself has a certain thickness, and corresponding cavities and channels can be opened within the mounting plate to allow power cables and control cables to pass through the aforementioned structures and connect to the drive motor 21, thus supporting the normal operation of the drive motor 21. At the same time, the cavities within the mounting plate retain a sufficiently long cable so that the drive motor 21 can still operate even after the local brush assembly is removed.

[0043] Meanwhile, multiple combined structures consisting of the drive assembly 2, obstacle-crossing assembly 3, support assembly 4, and support pulley 5 are arranged from one end of the cleaning cloth 1 to the other. Connecting nuts 45 and connecting studs 46 are only installed at both ends of the cleaning cloth 1. Simultaneously, the abutment rod 44 penetrates the cleaning cloth 1 to abut against all the unlocking rods 431.

[0044] Example 2:

[0045] A floor scrubber includes a floor brush assembly as described in Embodiment 1. It includes a housing, a self-cleaning device, and an operating handle; the housing is connected to the operating handle; the housing has a cavity for accommodating the self-cleaning device and the floor brush assembly; the housing covers the housing and the self-cleaning device; the self-cleaning device corresponds to the floor brush assembly.

[0046] As described in Embodiment 1, all structures are enclosed within the cleaning cloth 1. Therefore, for the other structures of the floor scrubber, only the shape of the cleaning cloth 1 changes from cylindrical to rectangular. Thus, for the outer casing, self-cleaning device, operating handle, etc., only the shape of the corresponding areas needs to be adjusted to match the rectangular shape for them to function correctly. In summary, this invention can minimize the overall development cost of the floor scrubber.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A floor brush assembly, characterized in that: include: Cleaning cloth, drive assembly, obstacle crossing assembly, support assembly, support pulleys; The drive assembly includes a drive motor, an output rod, and a transmission structure; The output rods are respectively located at both ends of the drive motor; The output rod is connected to the drive motor; The drive motor is connected to one of the support pulleys through the transmission structure to drive the support pulley to rotate; The obstacle-crossing components are respectively disposed on both sides of the drive component; The obstacle-crossing component includes a trigger lever and a translation lever; The translation rod is set in the horizontal direction; One end of the translation rod is connected to the support pulley; One end of the trigger rod engages with the translation rod, and the other end is connected to the support pulley; The support component is located on the side of the drive component away from the ground; The support assembly includes a support rod; One end of the support rod is connected to the support pulley; The number of supporting pulleys is multiple; The supporting pulleys are arranged in a rectangular pattern; The cleaning cloth is fitted onto the support pulley so that the cleaning cloth forms a closed rectangle.

2. A floor brush assembly according to claim 1, characterized in that: The transmission structure includes a driving gear, a driven gear, and a transmission rod; The drive gear is connected to the output rod; The driven gear is connected to one of the supporting pulleys; The transmission rod is arranged in the vertical direction; One end of the transmission rod meshes with the driving gear, and the other end meshes with the driven gear.

3. A floor brush assembly according to claim 2, characterized in that: The transmission rod includes a positioning rod, a sliding rod, a transmission protrusion, and a transmission ring; The positioning rod is set in the vertical direction; The positioning rod meshes with the drive gear; The transmission protrusion surrounds the sliding rod; The transmission protrusion is fixedly connected to the sliding rod; One end of the sliding rod meshes with the driven gear; The other end of the sliding rod extends into the positioning rod; A spring is provided between the sliding rod and the positioning rod; The number of transmission rings is two; The transmission rings are connected to each other; One of the transmission rings is fitted onto the driven gear, and the other transmission ring is fitted onto the sliding rod.

4. A floor brush assembly according to claim 1, characterized in that: The trigger lever includes a rotating lever and a telescopic lever; A rotating shaft is fixedly provided on one side of the rotating rod; A torsion spring is provided inside the rotating shaft; One end of the rotating rod engages with the translation rod; One end of the telescopic rod extends into the rotating rod; The other end of the telescopic rod is connected to one of the supporting pulleys; A spring is provided between the telescopic rod and the rotating rod.

5. A floor brush assembly according to claim 4, characterized in that: One end of the rotating rod is provided with a toothed protrusion. The protruding teeth are arranged circumferentially along the rotating rod; A rack is fixedly installed on the translation rod; The protruding teeth mesh with the rack.

6. A floor brush assembly according to claim 1, characterized in that: The support component also includes a locking block and an unlocking structure; The cross-section of the locking block is trapezoidal; The locking block is slidably disposed between the two support rods; The inclined surface of the locking block abuts against one end of the support rod; A reset spring is provided on the locking block; The return spring abuts against the locking block to drive the locking block to slide relative to the support rod, so that the support rod moves away from it. The unlocking structure is connected to the locking block in a driving connection, so as to drive the locking block to slide relative to the support rod, so that the support rod moves closer together.

7. A floor brush assembly according to claim 6, characterized in that: The unlocking structure includes an unlocking lever, a drive gear, and an unlocking gear; The unlocking lever is set in the vertical direction; The unlocking lever is slidably connected to the locking block; The sliding path of the unlocking lever corresponds to that of the unlocking gear, so as to engage with the unlocking gear; The unlocking gear is fixedly mounted on one side of the drive gear; The drive gear is connected to the output rod.

8. A floor brush assembly according to claim 7, characterized in that: The support assembly also includes an abutment rod; The abutment rod is arranged horizontally; The abutting rod abuts against one end of the unlocking rod.

9. A floor brush assembly according to claim 8, characterized in that: The support assembly also includes a connecting nut and a connecting stud; The connecting nut corresponds to the connecting stud; When the connecting nut is screwed onto the connecting stud, the connecting nut is fastened to one end of the abutment rod.

10. A floor scrubbing machine, characterized in that: Includes the floor brush assembly as described in any one of claims 1 to 9; It also includes the outer casing, self-cleaning device, and operating handle; The outer casing is connected to the operating handle; The housing has a cavity for accommodating the self-cleaning device and the floor brush assembly; The outer casing covers the outer casing and the self-cleaning device; The self-cleaning device corresponds to the floor brush assembly.

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