Cleaning brush

Abstract

This utility model relates to the field of power tool technology, and in particular to a cleaning brush. A cleaning brush includes: a main unit and an extension rod assembly; the extension rod assembly includes: a telescopic rod, a rear handle, a rod housing, a rod PCB board, a rod battery, and a rod button; the rod housing forms the front grip portion; the rod housing is located at the connection point between the inner and outer sleeves of the telescopic rod; the rod PCB board is mounted on the rod housing. The advantage of this utility model is that the extension rod assembly is equipped with a rod PCB board, a rod battery, and a rod button, allowing remote control of the main unit via the rod button, eliminating the need for control via the main unit's buttons, thus simplifying use. The rod PCB board is located on the rod housing at the connection point between the inner and outer sleeves of the telescopic rod, and during use, the rod button is positioned in front of the user for easy access. The distance between the front grip portion and the rear handle can be controlled by extending and retracting the telescopic rod to meet the gripping needs of different users.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically a cleaning brush. Background Technology

[0002] A cleaning brush is a cleaning tool that uses a motor to drive an output shaft to rotate, which in turn rotates the brush head connected to the output shaft to perform cleaning operations.

[0003] A cleaning brush can be used as a long-handled cleaning brush by attaching an extension rod. Short-handled cleaning brushes typically do not have control buttons or switches on their extension rods; those that do are usually located at the end of the extension rod furthest from the main brush, making them inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a cleaning brush to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cleaning brush, comprising:

[0007] Host; and

[0008] Extension rod assembly, which can be detachably installed onto the main unit;

[0009] The host includes:

[0010] Electric motor;

[0011] The battery powers the motor;

[0012] The output shaft is used to connect the brush head and is driven to rotate by the motor.

[0013] The housing is used to house the motor and has a grip for the user to hold.

[0014] Main switch, used to control the motor;

[0015] The main unit button is pressed by the user to activate the main unit's power switch.

[0016] MCU processor; and

[0017] The host communication module receives control signals and transmits them to the MCU processor.

[0018] The extension rod assembly includes:

[0019] Telescopic pole, which can be detachably installed onto the main unit;

[0020] The rear handle is connected to the end of the telescopic rod furthest from the main unit;

[0021] The rod housing forms a front grip for the user to hold. The rod housing is located at the connection between the inner sleeve and the outer sleeve of the telescopic rod and is fixed to the outer sleeve of the telescopic rod.

[0022] The pole PCB board is equipped with a pole communication module that can communicate with the host communication module and a pole control switch for controlling the motor. The pole PCB board is mounted on the pole housing.

[0023] The pole battery powers the pole communication module; and

[0024] The lever button is pressed by the user to trigger the lever control switch, which causes the lever communication module to send a control signal to the host communication module. After receiving the control signal, the host communication module controls the motor through the MCU processor.

[0025] As a further embodiment of this utility model: the rod housing includes: an inner housing and an outer housing; the inner housing is fixed to the outer sleeve of the telescopic rod; the outer housing is located on the outer periphery of the inner housing; the outer housing has a mounting hole; the rod housing also includes: a mounting cover; the mounting cover is installed on the outer housing and covers the mounting hole; the rod PCB board is placed on the inner housing through the mounting hole; the mounting cover and the inner housing fix the rod PCB board from both sides; the mounting cover has or is equipped with a rod button.

[0026] As a further embodiment of this invention: the rod battery is located on the rod PCB board.

[0027] As a further embodiment of this utility model: the rod battery is detachably mounted on the rod PCB board;

[0028] The mounting cover includes: a button cover and a battery cover; the lever button is located on the button cover; the button cover and the inner housing position the lever PCB board from both sides; the battery cover is detachably installed onto the outer housing; the battery cover covers the lever battery.

[0029] As a further embodiment of this utility model: the button cover and the lever button are molded as a whole; the battery cover part overlaps the button cover; a sealing rib is also molded on the button cover at the position where the battery cover is attached; the button cover is made of plastic material; the lever button and the sealing rib are molded onto the button cover using the same soft rubber material.

[0030] As a further embodiment of this utility model: the battery cover is detachably installed to the outer shell; the rod shell also includes a pressure cap; the pressure cap is detachably installed to the inner shell; the pressure cap and the inner shell limit the rod battery from the upper and lower sides.

[0031] As a further embodiment of this utility model: a pressure cap covers part of the rod battery; a button cover covers another part of the rod battery; the rod battery is a button battery; a C-shaped spring is provided on the rod PCB board; the C-shaped spring is covered by the button cover; the C-shaped spring abuts against the side of the button battery and applies a force to the button battery in a direction away from the C-shaped spring; the pressure cap forms an arc-shaped limiting surface; the arc-shaped limiting surface and the C-shaped spring position the button battery from both sides.

[0032] As a further embodiment of this utility model: the button cover and the battery cover can be detachably installed to the outer shell by means of a snap-fit ​​connection; the pressure cover can be detachably installed to the inner shell by means of a bolt connection.

[0033] As a further embodiment of this utility model: the telescopic rod can be detachably installed onto the gripping part; the telescopic rod and the gripping part are coaxial.

[0034] As a further embodiment of this utility model: The housing includes a front housing and a rear housing; the front housing is rotatably mounted to the rear housing; the battery is located inside the rear housing; the rear housing forms a gripping part; and the motor is located inside the front housing.

[0035] A cleaning brush, comprising:

[0036] Electric motor;

[0037] The battery powers the motor;

[0038] The output shaft is used to connect the brush head and is driven to rotate by the motor.

[0039] A housing for housing the motor and having a grip for the user to hold; and

[0040] Extension rod assembly, which can be detachably installed onto the housing;

[0041] One of the housing and the extension rod assembly is provided with a first insertion structure; the other of the housing and the extension rod assembly is provided with a second insertion structure.

[0042] The first insert structure has an insert portion and a locking block; the second insert structure has an insert hole for inserting the insert portion; the wall of the insert hole has a groove for guiding the sliding of the locking block and a locking groove for preventing the second insert structure and the first insert structure from separating from each other along the sliding direction of the locking block; the groove and the locking groove are interconnected so that the locking block can move between the groove and the locking groove; when the locking block moves along the groove to the connection between the groove and the locking groove, the relative rotation of the second insert structure and the first insert structure causes the locking block to move into the locking groove;

[0043] The cleaning brush further includes: a sliding lock; the sliding lock is slidably installed into the first insert structure; the sliding lock has a locking portion; when the lock block is located in the lock groove and the groove is aligned with the locking portion, the locking portion can be inserted into the groove along the insertion direction of the insert to prevent relative rotation between the second insert structure and the first insert structure.

[0044] As a further embodiment of this utility model: the sliding lock has a locked position and an unlocked position; the sliding lock slides between the locked position and the unlocked position relative to the first insertion structure; in the locked position, the locking part is inserted into the sliding groove; in the unlocked position, the locking part is pulled out from the sliding groove.

[0045] As a further embodiment of this utility model: the first insert structure has a guide groove for guiding the sliding of the sliding lock; the insert lock part slides along the guide groove.

[0046] As a further embodiment of this utility model: one of the guide groove and the locking part is formed with a positioning protrusion; the other of the guide groove and the locking part is formed with a positioning groove; the positioning protrusion enters the positioning groove so that the sliding lock is stopped in the locked position or the unlocked position.

[0047] As a further embodiment of this utility model: the second insert structure has a shaft post; the insert part is a sleeve structure; the shaft post is inserted into the inner hole of the sleeve structure.

[0048] As a further embodiment of this utility model: the housing has a second insertion structure at one end of the gripping part; the insertion part is inserted into the insertion hole along the central axis of the gripping part; the shaft is inserted into the insertion hole along the central axis of the gripping part.

[0049] As a further embodiment of this utility model: the sliding lock is sleeved on the outer periphery of the first insert structure; the sliding lock slides along the extension rod assembly; the number of locking parts formed by the sliding lock is the same as the number of locking blocks formed by the first insert structure; and several locking parts are arranged around the extension rod assembly.

[0050] As a further embodiment of this utility model: the battery is located inside the grip part; a charging interface for charging the battery is provided on the shaft.

[0051] As a further embodiment of this utility model: when the relative rotation of the second insertion structure and the first insertion structure causes the locking block to move along the locking groove to abut against the groove wall surface, the sliding groove and the locking part are aligned.

[0052] As a further embodiment of this utility model: the housing is provided with a main control button for controlling the motor; the main control button is located on the grip; the extension rod assembly is provided with a lever button for controlling the motor;

[0053] When the extension rod assembly is installed into the housing, the extension rod assembly and the grip are coaxial.

[0054] When the relative rotation of the second insertion structure and the first insertion structure causes the lock block to move along the lock groove to abut against the groove wall, the main button and the lever button are located on the same side of the integral part formed by the extension rod assembly and the grip.

[0055] Compared with existing technologies, the advantages of this utility model are as follows: The extension rod assembly is equipped with a rod PCB board, a rod battery, and a rod button. The main unit can be controlled remotely via the rod button, eliminating the need for control via the main unit's buttons, thus simplifying operation. The rod PCB board is located on the rod housing at the connection point between the inner and outer sleeves of the telescopic rod. During use, the rod button is positioned in front of the user for easy access. The distance between the front grip and the rear handle can be controlled by extending and retracting the telescopic rod to meet the gripping needs of different users, allowing users to easily press the control button while gripping the front grip.

[0056] The pole housing can both protect the telescopic pole at its extension and retraction points and allow for the installation of the pole's PCB board.

[0057] The structural design of the inner and outer shells facilitates the installation of the rod PCB board.

[0058] The mounting cover's design facilitates easy installation and removal of the battery. The design of the button cover and battery cover enhances sealing performance, preventing leaks between the button cover and battery cover, and between the lever button and button cover.

[0059] The pressure cap design prevents the battery from falling off, prevents the battery from falling off due to the battery cap coming off in abnormal circumstances, and also prevents the risk of children accidentally removing the battery and swallowing it.

[0060] The combination of the cap structure and the C-shaped spring not only locks the position of the button battery but also ensures the reliability of the button battery connection.

[0061] The telescopic rod is integrated into the grip, allowing users to maintain the same usage habits and posture whether using the short-handled main unit or the long-handled cleaning brush. Compared to other connection methods, such as the telescopic rod being perpendicular to the grip, this is more convenient for users. The adjustable rotation of the front and rear housings further enhances the user's ease of use.

[0062] The extension rod assembly is easy to install and highly reliable.

[0063] During installation, simply insert and rotate the extension rod assembly, then slide the locking mechanism to lock the connection between the extension rod assembly and the housing, preventing the extension rod assembly from becoming loose.

[0064] Compared to the spiral connection method, it does not require multiple rotations, making installation quick and easy. It also eliminates the need for careful alignment of the sliding lock and the slide groove, making installation convenient and quick.

[0065] The slide can both guide the lock block and lock it in conjunction with the locking part. It has a simple structure and high reliability compared to complex locking structures.

[0066] The combination of the positioning protrusion and the positioning groove can limit the position of the sliding lock, maintain the connection between the sliding lock and the first insertion structure, and prevent the sliding lock from being lost due to independent setting.

[0067] The setting of the shaft column, in conjunction with the sleeve structure and the insertion hole, can achieve higher connection strength and ensure the reliability of the connection.

[0068] The lever buttons can be positioned at a predetermined location along the circumference of the extension lever assembly. When installing the extension lever assembly onto the housing, there's no need to pay special attention to the button's position. By inserting and rotating the extension lever assembly, and then locking the connection between the extension lever assembly and the housing using the sliding locking mechanism, the button's usable position is guaranteed, allowing for convenient user control. This installation method ensures the lever buttons are positioned in the appropriate circumferential location, facilitating the installation of control buttons on the extension lever assembly.

[0069] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0070] Figure 1 This is a perspective view of the cleaning brush of this utility model;

[0071] Figure 2 for Figure 1 A schematic diagram showing the extension rod assembly of the cleaning brush separated from the main unit;

[0072] Figure 3 yes Figure 1 A cross-sectional view of the main unit of the cleaning brush;

[0073] Figure 4 yes Figure 2 A perspective view of the extension rod assembly and the second insert structure of the cleaning brush;

[0074] Figure 5 yes Figure 4 A front view of the structure in the image;

[0075] Figure 6 yes Figure 5 Left view of the structure in the middle;

[0076] Figure 7 yes Figure 6 Enlarged view of a portion of the structure;

[0077] Figure 8 yes Figure 7 A cross-sectional view of the middle structure along line CC;

[0078] Figure 9 yes Figure 5 A sectional view of the middle structure along line AA;

[0079] Figure 10 yes Figure 9 A cross-sectional view of the second insert structure in the middle;

[0080] Figure 11 yes Figure 5 Cross-sectional view of the middle structure along line BB;

[0081] Figure 12 yes Figure 9 A magnified view of a portion of the rod housing;

[0082] Figure 13 yes Figure 12 An exploded view of the central structure, showing the mounting cover, pressure cap, rod battery, and rod PCB board exploded from the rod housing;

[0083] Figure 14 yes Figure 13 A schematic diagram of the structure from another perspective;

[0084] Figure 15 yes Figure 1 A block diagram showing the communication connection between the cleaning brush's rod communication module, the host communication module, and the MCU processor.

[0085] List of reference numerals: Cleaning brush 100, Main unit 10, Motor 11, Battery 12, Output shaft 13, Housing 14, Front housing 141, Rear housing 142, Grip 1421, Second insertion structure 101, Insertion hole 1011, Slide groove 1012, Locking groove 1013, Shaft post 1014, Main unit switch 151, Main unit button 152, Main unit PCB board 16, MCU processor 161, Main unit communication module 162, Extension rod assembly 20, First insertion structure 201, Insertion part 2011, Lock Block 2012, guide groove 2013, positioning groove 2014, telescopic rod 21, rear handle 22, rod housing 23, inner housing 231, outer housing 232, mounting hole 2321, mounting cover 233, button cover 2331, battery cover 2332, sealing rib 2333, rod PCB board 24, rod communication module 241, rod control switch 242, rod battery 25, rod button 26, pressure cover 27, arc-shaped limiting surface 271, C-shaped spring 28, sliding lock part 30, insert lock part 31, positioning protrusion 311. Detailed Implementation

[0086] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0087] like Figures 1 to 3 As shown, a cleaning brush 100 includes: a motor 11, a battery 12, an output shaft 13, and a housing 14.

[0088] Battery 12 powers motor 11. Output shaft 13 is used to connect to the brush head and is driven to rotate by motor 11. The output shaft can be directly or indirectly connected to the brush head. Housing 14 houses motor 11 and has a grip 1421 for user holding. Housing 14 assembles all parts into a single unit constituting main unit 10. The user can hold the grip 1421 to operate and use main unit 10 for cleaning. Cleaning brush 100 also includes extension rod assembly 20. Extension rod assembly 20 is detachably mounted to main unit 10. Specifically, extension rod assembly 20 is detachably mounted to housing 14. Extension rod assembly 20 is a long rod structure, which allows cleaning brush 100 to be used as a long-handled cleaning brush when mounted to main unit 10. When extension rod assembly 20 is not installed, the user can use main unit 10 alone, in which case main unit 10 can be used as a short-handled cleaning brush.

[0089] like Figure 2 , Figures 6-8 , Figure 10 and Figure 11 As shown, in a preferred embodiment, the extension rod assembly 20 is provided with a first insertion structure 201. The housing 14 is provided with a second insertion structure 101. The insertion connection between the extension rod assembly 20 and the housing 14 is achieved through the cooperation of the first insertion structure 201 and the second insertion structure 101. In an optional embodiment, the first insertion structure may also be located in the housing, while the second insertion structure is located in the extension rod assembly.

[0090] Specifically, such as Figure 6 and Figure 7 As shown, the first insertion structure 201 includes an insertion portion 2011 and a locking block 2012. Figure 10 As shown, the second insertion structure 101 has an insertion hole 1011. The insertion hole 1011 is for the insertion part 2011 to be inserted. Figure 10 and Figure 11The insertion hole 1011 has a groove 1012 and a locking groove 1013 formed in its wall. The groove 1012 guides the locking block 2012 to slide. When the insertion part 2011 is inserted into the insertion hole 1011, the locking block 2012 aligns and slides along the groove 1012. The locking groove 1013 prevents the second insertion structure 101 and the first insertion structure 201 from separating from each other along the sliding direction of the locking block 2012. The groove 1012 and the locking groove 1013 are interconnected so that the locking block 2012 can move between the groove 1012 and the locking groove 1013. When the locking block 2012 moves along the groove 1012 to the connection between the groove 1012 and the locking groove 1013, the relative rotation of the second insertion structure 101 and the first insertion structure 201 causes the locking block 2012 to move into the locking groove 1013. Specifically, when the locking block 2012 enters the locking groove 1013, the locking groove 1013 limits the locking block 2012, preventing it from moving along the pull-out direction of the first insertion structure 201. The end of the sliding groove 1012 and the end of the locking groove 1013 are connected. After the locking block 2012 slides to the bottom in the sliding groove 1012, it can be rotated into the locking groove 1013. The sliding groove 1012 and the locking groove 1013 are interconnected to form an L-shape, with the vertical section being the sliding groove 1012 and the horizontal section being the locking groove 1013.

[0091] As a preferred implementation method, such as Figure 1 , Figures 6 to 8 As shown, the cleaning brush 100 also includes a sliding lock member 30. The sliding lock member 30 is slidably mounted to the first insertion structure 201. The sliding lock member 30 has a locking portion 31. When the locking block 2012 is located within the locking groove 1013 and the groove 1012 is aligned with the locking portion 31, the locking portion 31 can be inserted into the groove 1012 along the insertion direction of the insertion portion 2011 to prevent relative rotation between the second insertion structure 101 and the first insertion structure 201. The sliding lock member 30 can lock the relative positions of the first insertion structure 201 and the second insertion structure 101, preventing relative rotation between the first insertion structure 201 and the second insertion structure 101.

[0092] The locking block 2012 enters the locking groove 1013 via the sliding groove 1012. The locking groove 1013 restricts the axial movement of the locking block 2012 along the extension rod assembly 20, but the locking groove 1013 can still move back into the sliding groove 1012 through the relative rotation of the first insertion structure 201 and the second insertion structure 101. The sliding lock 30 locks the relative position of the first insertion structure 201 and the second insertion structure 101, achieving circumferential positioning. The locking block 2012 prevents the extension rod assembly 20 from separating from the main unit 10, achieving axial positioning. Under the combined action of the locking block 2012 and the sliding lock 30, the axial and circumferential positioning of the extension rod assembly 20 relative to the main unit 10 is achieved, improving the reliability of the connection.

[0093] In a preferred embodiment, the sliding lock 30 has a locked position and an unlocked position. The sliding lock 30 slides between the locked position and the unlocked position relative to the first insert structure 201. In the locked position, the locking part 31 is inserted into the slide groove 1012. In the unlocked position, the locking part 31 is withdrawn from the slide groove 1012. Specifically, the sliding direction of the sliding lock 30 is consistent with the insertion direction of the first insert structure 201 and the second insert structure 101. The sliding lock 30 slides along the axial direction of the extension rod assembly 20. The slide groove 1012 structure not only realizes the sliding of the guide lock block 2012, but also cooperates with the locking part 31 to lock the circumferential position of the first insert structure 201 and the second insert structure 101.

[0094] In one specific embodiment, the first insertion structure 201 has a guide groove 2013 for guiding the sliding of the sliding lock member 30. The locking part 31 slides along the guide groove 2013. The sliding direction of the locking part 31 in the guide groove 2013 is parallel to the axial direction of the extension rod assembly 20. The sliding direction of the locking part 31 in the guide groove 2013 is parallel to the insertion direction of the first insertion structure 201 and the second insertion structure 101.

[0095] As a specific implementation method, such as Figure 8 As shown, the locking portion 31 has a positioning protrusion 311. The guide groove 2013 has a positioning groove 2014. The positioning protrusion 311 enters the positioning groove 2014 to keep the sliding lock 30 in the locked or unlocked position. Specifically, there are two positioning grooves 2014. The two positioning grooves 2014 correspond to the locked position and the unlocked position, respectively. When the positioning protrusion 311 enters the positioning groove 2014 corresponding to the locked position, the sliding lock 30 stays in the locked position. When the positioning protrusion 311 enters the positioning groove 2014 corresponding to the unlocked position, the sliding lock 30 stays in the unlocked position. When it is necessary to move the sliding lock 30, the positioning protrusion 311 can be disengaged from the positioning groove 2014 by applying external force. Specifically, the positioning protrusion 311 is located at the end of the locking portion 31.

[0096] As an optional implementation, the locking part forms a positioning groove, while the guide groove forms a positioning protrusion.

[0097] In a preferred embodiment, the second insertion structure 101 has a post 1014. The insertion portion 2011 is a sleeve structure. The post 1014 is inserted into the inner hole of the sleeve structure. The structural configuration of the first insertion structure 201 and the second insertion structure 101 has high structural strength, improving the reliability of the connection between the extension rod assembly 20 and the housing 14. The post 1014 is in the insertion hole 1011, making the insertion hole 1011 an annular hole. In an optional embodiment, a sliding lock and a locking groove can be provided on the post, with a corresponding locking block located on the inner wall surface of the sleeve structure, and the locking portion located inside the sleeve structure. For example, the locking portion can be located inside the extension rod assembly or inside the housing.

[0098] In a preferred embodiment, the housing 14 has a second insertion structure 101 at one end of the grip portion 1421. The insertion portion 2011 is inserted into the insertion hole 1011 along the central axis of the grip portion 1421. The shaft 1014 is also inserted into the insertion hole 1011 along the central axis of the grip portion 1421. After the extension rod assembly 20 is connected, the force is directly transmitted to the grip portion 1421, and the main unit 10 is used by directly connecting the extension rod assembly 20 to the grip portion 1421. Using the extension rod assembly 20 is the same as using the main unit 10 alone, which is convenient for the user. In an optional embodiment, the extension rod assembly can also be connected to other positions on the housing, that is, the second insertion structure is not provided at one end of the grip portion, but at other positions on the housing.

[0099] In a preferred embodiment, the sliding locking member 30 is fitted around the outer periphery of the first insert structure 201. The sliding locking member 30 slides along the extension rod assembly 20. The number of locking portions 31 formed by the sliding locking member 30 is the same as the number of locking blocks 2012 formed by the first insert structure 201. Specifically, there are two locking portions 31. In an optional embodiment, there are three or four locking portions, etc. Several locking portions are arranged around the extension rod assembly. In an optional embodiment, there may be only one locking portion 31. In an optional embodiment, the sliding locking member may also be configured as a slider and slidably mounted on the first insert structure.

[0100] In one specific embodiment, the battery 12 is located within the grip portion 1421. A charging port for charging the battery 12 is provided on the shaft 1014. A seal can be provided at the location of the charging port. The seal is installed on the shaft 1014 to seal the charging port.

[0101] In a preferred embodiment, when the relative rotation of the second insertion structure 101 and the first insertion structure 201 causes the locking block 2012 to move along the locking groove 1013 until it abuts against the groove wall of the locking groove 1013, the sliding groove 1012 and the locking part 31 are aligned. Operation is convenient; when the user rotates the extension rod assembly 20 to its maximum rotation position, they can directly push the sliding lock member 30, causing the locking part 31 to insert into the sliding groove 1012, thus achieving locking.

[0102] As a preferred implementation method, such as Figure 2 and Figure 3 As shown, the housing 14 is equipped with a main control button 152. The main control button 152 is used to control the motor 11. The main control button 152 is located on the grip part 1421.

[0103] The extension rod assembly 20 is equipped with a lever button 26 for controlling the motor 11. When the extension rod assembly 20 is installed in the housing 14, the extension rod assembly 20 and the grip 1421 are coaxial. When the relative rotation of the second insertion structure 101 and the first insertion structure 201 causes the locking block 2012 to move along the locking groove 1013 to abut against the groove wall of the locking groove 1013, the main unit button 152 and the lever button 26 are located on the same side of the whole formed by the extension rod assembly 20 and the grip 1421. Whether the user uses the main unit 10 alone for cleaning or uses the cleaning brush 100 with the extension rod assembly 20 connected, the position of the control button is consistent with the circumferential position of the main unit 10, making it convenient for the user and consistent in operation. The connection method between the second insertion structure 101 and the first insertion structure 201, compared with the threaded connection which requires multiple rotations, can quickly and accurately achieve circumferential positioning, and then use the locking block 2012 to achieve circumferential locking.

[0104] As a specific implementation method, such as Figure 3 and Figure 15 As shown, the host 10 also includes: host switch 151, host button 152, MCU processor 161 and host communication module 162.

[0105] The main switch 151 is used to control the motor 11. The main button 152 is pressed by the user to trigger the main switch 151. The main button 152 is located on the housing 14. The MCU processor 161 is the control core of the main unit 10. The MCU processor 161 controls various functions of the cleaning brush 100. Specifically, the main unit 10 also includes a main PCB board 16. The MCU processor 161 and the main communication module 162 are located on the main PCB board 16. The main switch 151 is located on the main PCB board 16. The MCU processor and the main communication module can be two independent parts, or they can be composed of a single chip, such as using a control chip with Bluetooth functionality as the MCU processor. When using a single chip as both the MCU processor and the main communication module, it can also be considered that a portion of the chip implements the control function as the MCU processor, and the portion of the chip that implements external communication serves as the main communication module.

[0106] As one specific implementation method, such as Figures 1 to 3 As shown, the extension rod assembly 20 includes a telescopic rod 21. The telescopic rod 21 is detachably installed to the main unit 10. The telescopic rod 21 achieves length adjustment through extension and retraction. The telescopic rod is a common adjustable rod-shaped tool, consisting of an inner sleeve, an outer sleeve, and a locking structure. The relative movement of the inner sleeve and the outer sleeve achieves length adjustment, and the locking structure locks the relative position of the inner sleeve and the outer sleeve, thereby fixing the length of the telescopic rod. The specific structure of the telescopic rod is not the core of this patent protection, and the telescopic rod is a commonly used technical means in the industry. Those skilled in the art can clearly understand its implementation method; therefore, its specific structure is not described in detail in the specification.

[0107] Alternatively, the extension rod assembly can also be a single long rod. Alternatively, the extension rod assembly can be composed of multiple short rods assembled into a single long rod.

[0108] As a preferred implementation method, such as Figure 1 , Figure 2 and Figure 4 As shown, the extension rod assembly 20 also includes a rear handle 22 and a rod housing 23. The rear handle 22 is connected to the end of the telescopic rod 21 away from the main unit 10. A hanging ring or strap is installed on the rear handle 22 to suspend the telescopic rod 21 or the cleaning brush 100 for storage. The rod housing 23 forms a front grip for the user to hold. The rod housing 23 is located at the connection point between the inner and outer sleeves of the telescopic rod 21 and is fixed to the outer sleeve of the telescopic rod 21. The front grip and rear handle 22 facilitate the user's use of the cleaning brush 100 while holding the extension rod assembly 20 with both hands.

[0109] As a preferred implementation method, such as Figure 3 , Figure 5 , Figure 9 , Figures 12 to 14As shown, the extension rod assembly 20 also includes: a rod PCB board 24, a rod battery 25, and a rod button 26.

[0110] The pole PCB board 24 includes a pole communication module 241 and a pole control switch 242. The pole PCB board 24 is mounted on the pole housing 23. The pole communication module 241 can communicate with the host communication module 162. The pole control switch 242 is used to control the motor 11. The pole battery 25 powers the pole communication module 241. When the user presses the pole button 26, it triggers the pole control switch 242, causing the pole communication module 241 to send a control signal to the host communication module 162. After receiving the control signal, the host communication module 162 uses the MCU processor 161 to control the motor 11. Figure 15 The pole communication module 241 communicates wirelessly with the host communication module 162, and the pole communication module 241 transmits control signals to the MCU processor 161 via the host communication module 162.

[0111] When using the extension pole assembly 20, the host 10 can be controlled via the pole button 26 on the extension pole assembly 20, instead of the host button 152 on the host 10, making operation convenient. Wireless communication reduces wiring, eliminating the need to connect wires from the host 10 to the pole control switch. The arrangement of the pole PCB board 24, pole battery 25, and pole button 26 on the pole housing 23 at the connection point between the inner and outer sleeves of the telescopic pole 21 is more convenient for users than placing them on the rear handle 22. When the user holds the extension pole assembly 20 with both hands, the rear handle 22 may be located behind the user, while the pole housing 23 is located in front. The user can directly see the pole button 26 on the pole housing 23 for easy control. The system utilizes a pole PCB board 24 to aggregate a pole communication module 241 and a pole control switch 242. The corresponding pole buttons 26 and pole batteries 25 are all mounted on the pole housing 23. No additional wiring is required, resulting in a compact structure. Furthermore, the related structures do not need to be housed inside the telescopic pole 21; they can be placed outside the telescopic pole 21 and enclosed by the pole housing 23. Installation is convenient.

[0112] As a specific implementation method, such as Figure 5 , Figure 9 , Figure 12 and Figure 13As shown, the rod housing 23 includes an inner housing 231 and an outer housing 232. The inner housing 231 is fixed to the outer sleeve of the telescopic rod 21. The outer housing 232 is located on the outer periphery of the inner housing 231. The outer housing 232 has a mounting hole 2321. The rod housing 23 also includes a mounting cover 233. The mounting cover 233 is installed to the outer housing 232 and covers the mounting hole 2321. The rod PCB board 24 is placed on the inner housing 231 by passing through the mounting hole 2321. The mounting cover 233 and the inner housing 231 fix the rod PCB board 24 from both sides. The structure is compact, and the rod PCB board 24 is easy to install.

[0113] As a specific implementation method, such as Figure 12 and Figure 13 As shown, the rod battery 25 is located on the rod PCB board 24. The rod battery 25 is detachably mounted on the rod PCB board 24. Alternatively, the rod battery can be fixed to the rod PCB board, i.e., the rod battery is a non-removable structure. The rod battery can be charged via a charging interface. Alternatively, the rod battery can be disposed of outside the rod PCB board, for example, on the inner housing, outer housing, or mounting cover.

[0114] like Figures 12 to 14 As shown, the mounting cover 233 includes a button cover 2331 and a battery cover 2332. Specifically, the lever button 26 is located on the button cover 2331. The button cover 2331 and the inner housing 231 position the lever PCB board 24 from both sides. The battery cover 2332 is detachably mounted to the outer housing 232. The battery cover 2332 covers the lever battery 25. The lever battery 25 can be removed by opening the battery cover 2332. During normal use, the button cover 2331 positions the lever PCB board 24. When removing the lever battery 25, the battery cover 2332 can be opened to remove the lever battery 25. The battery cover 2332 covering the lever battery 25 can be completely or partially covered. Specifically, the battery cover 2332 covers a portion of the lever battery 25. The button cover 2331 covers the other portion of the lever battery 25.

[0115] The mounting cover has or has mounted a lever button. The lever button can be a separate button mounted on the mounting cover, or it can be integrally formed with the mounting cover as part of the mounting cover. Specifically, the mounting cover 233 includes a button cover 2331 and a battery cover 2332. As one specific embodiment, the button cover 2331 and the lever button 26 are molded as a single unit. The battery cover 2332 partially overlaps the button cover 2331. The button cover 2331 also has a sealing rib 2333 molded at the position where the battery cover 2332 overlaps. The button cover 2331 is made of plastic material. The lever button 26 and the sealing rib 2333 are molded onto the button cover 2331 using the same soft plastic material. As an optional embodiment, the lever button can also be mounted on the button cover as a separate button.

[0116] In one specific implementation, the battery cover 2332 is detachably mounted to the outer casing 232. The rod housing 23 also includes a pressure cap 27. The pressure cap 27 is detachably mounted to the inner casing 231. The pressure cap 27 and the inner casing 231 limit the rod battery 25 from the top and bottom. The pressure cap 27 improves the reliability of fixing the rod battery 25 and prevents the rod battery 25 from falling off.

[0117] In a preferred embodiment, the pressure cap 27 covers a portion of the rod battery 25. The button cover 2331 covers the other portion of the rod battery 25. The rod battery 25 is a button cell battery. A C-shaped spring 28 is provided on the rod PCB board 24. The C-shaped spring 28 is covered by the button cover 2331. The C-shaped spring 28 abuts against the side of the button cell battery, applying a force to the button cell battery in a direction away from the C-shaped spring 28. The pressure cap 27 has an arc-shaped limiting surface 271. The arc-shaped limiting surface 271 and the C-shaped spring 28 position the button cell battery from both sides. The pressure cap 27 can lock the rod battery 25 both axially and radially in the extension rod assembly 20. The reliability of fixing the rod battery 25 is high. The C-shaped spring 28 also functions as an electrode.

[0118] In a preferred embodiment, the button cover 2331 and battery cover 2332 are detachably mounted to the outer casing 232 via a snap-fit ​​connection. The pressure cap 27 is detachably mounted to the inner casing 231 via a bolt connection. This effectively prevents the button battery from detaching.

[0119] In one specific implementation, the telescopic rod 21 is detachably mounted to the grip 1421. The telescopic rod 21 and the grip 1421 are coaxial.

[0120] As a specific implementation method, such as Figure 3As shown, the housing 14 includes a front housing 141 and a rear housing 142. The front housing 141 is rotatably mounted to the rear housing 142. The battery 12 is located inside the rear housing 142. The rear housing 142 forms a grip portion 1421. The motor 11 is located inside the front housing 141. The main unit PCB board 16 is located inside the rear housing 142.

[0121] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0122] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cleaning brush (100), characterized in that, include: Host (10); as well as Extension rod assembly (20) is detachably installed to the main unit (10); The host (10) includes: Motor (11); Battery (12) supplies power to motor (11); The output shaft (13) is used to connect the brush head and is driven to rotate by the motor (11); The housing (14) is used to house the motor (11) and is provided with a grip (1421) for the user to hold; A main switch (151) is used to control the motor (11); The main unit button (152) is pressed by the user to trigger the main unit switch (151); MCU processor (161); and The host communication module (162) receives control signals and transmits them to the MCU processor (161); The extension rod assembly (20) includes: Telescopic rod (21) is detachably installed to the main unit (10); The rear handle (22) is connected to the end of the telescopic rod (21) away from the main unit (10); The rod housing (23) forms a front grip for the user to hold. The rod housing (23) is located at the connection position of the inner sleeve and outer sleeve of the telescopic rod (21) and is fixed to the outer sleeve of the telescopic rod (21). The rod PCB board (24) is provided with a rod communication module (241) that can communicate with the host communication module (162) and a rod control switch (242) for controlling the motor (11). The rod PCB board (24) is mounted on the rod housing (23). The pole battery (25) powers the pole communication module (241); and The lever button (26) is pressed by the user to trigger the lever control switch (242), causing the lever communication module (241) to send the control signal of the lever control switch (242) to the host communication module (162). After receiving the control signal, the host communication module (162) controls the motor (11) by the MCU processor (161).

2. The cleaning brush (100) according to claim 1, characterized in that, The rod housing (23) includes: an inner housing (231) and an outer housing (232); the inner housing (231) is fixed to the outer sleeve of the telescopic rod (21); the outer housing (232) is located on the outer periphery of the inner housing (231); the outer housing (232) has a mounting hole (2321); the rod housing (23) further includes: a mounting cover (233); the mounting cover (233) is installed on the outer housing (232) and covers the mounting hole (2321); the rod PCB board (24) is placed on the inner housing (231) by passing through the mounting hole (2321); the mounting cover (233) and the inner housing (231) fix the rod PCB board (24) from both sides; the mounting cover (233) has or has mounted the rod button (26).

3. The cleaning brush (100) according to claim 2, characterized in that, The rod battery (25) is located on the rod PCB board (24).

4. The cleaning brush (100) according to claim 3, characterized in that, The rod battery (25) is detachably mounted on the rod PCB board (24); The mounting cover (233) includes: a button cover (2331) and a battery cover (2332); the lever button (26) is located on the button cover (2331); the button cover (2331) and the inner housing (231) position the lever PCB board (24) from both sides; the battery cover (2332) is detachably installed to the outer housing (232); the battery cover (2332) covers the lever battery (25).

5. The cleaning brush (100) according to claim 4, characterized in that, The button cover (2331) and the lever button (26) are molded as a whole; the battery cover (2332) partially overlaps the button cover (2331); the button cover (2331) also has a sealing rib (2333) molded at the mounting position of the battery cover (2332); the button cover (2331) is made of plastic material; the lever button (26) and the sealing rib (2333) are made of the same soft rubber and molded onto the button cover (2331).

6. The cleaning brush (100) according to claim 4, characterized in that, The rod housing (23) also includes a pressure cap (27); the pressure cap (27) is detachably installed to the inner housing (231); the pressure cap (27) and the inner housing (231) limit the rod battery (25) from the upper and lower sides.

7. The cleaning brush (100) according to claim 6, characterized in that, The pressure cap (27) covers a portion of the rod battery (25); the button cover (2331) covers another portion of the rod battery (25); the rod battery (25) is a button battery; a C-shaped spring (28) is provided on the rod PCB board (24); the C-shaped spring (28) is covered by the button cover (2331); the C-shaped spring (28) abuts against the side of the button battery and applies a force to the button battery to move away from the C-shaped spring (28); the pressure cap (27) forms an arc-shaped limiting surface (271); the arc-shaped limiting surface (271) and the C-shaped spring (28) position the button battery from both sides.

8. The cleaning brush (100) according to claim 6, characterized in that, The button cover (2331) and the battery cover (2332) are detachably installed to the outer shell (232) by means of a snap-fit ​​connection; the pressure cover (27) is detachably installed to the inner shell (231) by means of a bolt connection.

9. The cleaning brush (100) according to claim 1, characterized in that, The telescopic rod (21) is detachably installed to the grip (1421); the telescopic rod (21) and the grip (1421) are coaxial.

10. The cleaning brush (100) according to claim 9, characterized in that, The housing (14) includes a front housing (141) and a rear housing (142); the front housing (141) is rotatably mounted to the rear housing (142); the battery (12) is located inside the rear housing (142); the rear housing (142) forms the grip portion (1421); and the motor (11) is located inside the front housing (141).

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